JP6793976B2 - Extrusion mold - Google Patents

Description

The present invention relates to an extrusion mold.
The present invention will be described in relation to an apparatus for extruding a corner material having a V-shaped, U-shaped, and flat cross-section perpendicular to the axis, but the present invention manufactures other long extruded products. It can be carried out extensively in connection with the equipment for, and also in the context of other technical fields.

In the present specification, the term "corner material" shall be construed as a concept that includes not only the final finished product but also the unfinished product in the process of manufacture.
In the present specification, the divided surface may be referred to as a contact surface, and the plate member may be referred to as a plate-shaped portion.

The Applicant proposes a corner material used for a wall surface of a building and attached to an outside corner and an inside corner, for example, in Jitsufuku 5-13855 (Patent Document 1). In producing such corner materials, it is desired to improve the quality and the productivity.

The V-shaped corner material has a pair of plate members and a bent portion connecting these plate members, and the cross section perpendicular to the axis is V-shaped. In the conventional extrusion molding apparatus, the V-shaped corner material from the extrusion molding die has one plate member in a horizontal posture and the other plate member in a posture in which the width direction hangs substantially vertically from the bent portion. While moving, injecting water, or passing through the water tank, it is cooled, and downstream of it, the one plate member is placed between a pair of rollers having a horizontal axis of rotation in the take-up device. Manufactured by sandwiching and picking up.

In this prior art, the water used for cooling remains adhered in the form of drops on one of the horizontal plate members of the V-shaped corner material, whereby the surface is partially discolored and deteriorated. , Quality deteriorates. In addition, foreign matter or the like adheres to the one plate member, and the quality deteriorates. Therefore, the yield of the product is low and the productivity is lowered. This problem occurs during the production of not only V-shaped corner materials but also long extruded products having other flat surfaces.

Real fairness 5-13855

An object of the present invention is to provide an extrusion-molding die capable of improving the quality of a long extrusion-molded product and increasing the productivity.

With respect to the reference marks in the present specification, subscripts a, b, ... May be added to the reference marks of the same number in the corresponding parts of similar components. Corresponding components are collectively indicated by reference numerals only, and the numbers may be individually subscripted a, b, ....

References in the claims and means for solving the problems are used only for convenience to understand corresponding to embodiments, and the technical scope of the invention is these. It should not be confined to a reference and should be interpreted in a broader sense without a reference.

The present invention is for extrusion molding of V-shaped or U-shaped corner materials.
A pair of plate members 152, 153 (FIG. 48); 331, 332 (FIG. 57) are bent at a portion 155;
In the corner material extrusion molding devices 1 and 61 for extruding the V-shaped or U-shaped corner materials 25 and 66 connected by 333.
(A) An extruder 2 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a synthetic resin melted from the first pipe 11
(B) Extrusion molding dies 4 and 60 having a rectangular shape as a whole.
It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is in a common straight line with the pipe shaft 238a of the first pipe 11, and the resin from the second pipe 12 is used for the corner materials 25 and 66. Flow hole 277,
Guided by 278: 416, 417
The portions of the flow holes 277: 417 corresponding to the plate members 152, 153: 331, 332 are adjacent side portions of the rectangular body (for example, the upper or lower side portion and the right or left side portion of FIG. 23 (1). ,
Extrusion molds 4, 60 extending along (ie, parallel to FIG. 23 (1), FIG. 54), respectively, along the upper or lower side of FIG. 54 and the right or left side.
(C) To supply the corner materials 25 and 66 from the flow holes 277, 278: 416 and 417 in an inverted V-shaped or inverted U-shaped posture that is convex upward in a virtual plane perpendicular to the resin moving direction. of,
A means for expressing the rotation angle around the pipe shaft 238b of the second pipe 12, and a reference surface 287 for a spirit level provided in connection with the extrusion molding dies 4 and 60 (FIGS. 3, FIG. 16, FIG. 52, FIG. 53, etc.) and the means to represent the rotation angle realized by the level mounted on it,
(D) Connecting devices 5 (FIG. 5) and 13 (FIG. 15) for connecting the first pipe 11 and the second pipe 12 so as to be angularly displaceable around the pipe shafts 238a and 238b on the common straight line.
(E) The extrusion molding apparatus includes a sizing apparatus 9 having a cooling flow hole 33 (FIG. 2) for cooling the corner materials 25 and 66 introduced from the extrusion molding dies 4 and 60.

The connecting devices 5 and 13 enable mutual angular displacement around each axis of the first pipe 11 and the second pipe 12, that is, around the pipe shaft 238, and around the pipe shaft 238b of the second pipe 12 of the molds 4 and 60. Since it is possible to adjust the posture of the mold, that is, the angular displacement, the pipe shaft 238b in the resin moving direction of the molds 4 and 60
A rotation angle adjustment structure for setting the peripheral angular displacement position is realized.
With the connecting devices 5 and 13, the molds 4 and 60 can be attached / detached / replaced and maintained by a simple operation. Therefore, in producing the V-shaped or U-shaped corner materials 25 and 66, the productivity can be increased.
The present invention is for extrusion molding of flat corner materials.
A corner material extrusion molding device 7 for extruding a flat corner material 80 in which a pair of plate members 424 and 425 (FIG. 60) made of a hard resin are connected by a flexible bending portion 423 made of a soft resin.
In 2,
(A) An extruder 184 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a molten hard resin from the first pipe 11
(B) Extrusion molding die 73 having a rectangular shape as a whole.
It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is on a common straight line with the pipe shaft 238a of the first pipe 11.
The first flow hole 204 from which the hard resin is guided from the second pipe 12 and
Individual flow holes 205 and 206 for the first and second hard resins, which are formed by communicating with the first flow holes 204 downstream in the resin moving direction and having a gap in the width direction, and for each plate member 424 and 425,
A pair of plate members 424, 42 from the individual flow holes 205, 206 for the first and second hard resins.
The common flow hole 207 leading to 5 and
It has a soft resin supply path 213 that guides the soft resin for the bent portion 423 to the common flow hole 207 and fixes it to the plate members 424 and 425 in the gap.
The portions corresponding to the plate members 424 and 425 of the individual flow holes 205 and 206 for the first and second hard resins and the common flow holes 207 are the upper and lower side portions 288b and 288c of the rectangular body (FIG. 59 (FIG. 59).
2), an extrusion die 73 extending along (see FIG. 60), and
(C) the corner member 80 from the common flow hole 207 for supplying a posture is horizontal within a virtual plane perpendicular to the resin moving direction, a means of representing the rotation angle around the tube axis 238b of the second tube 12 As a means of expressing the rotation angle realized by the upper side portions 288b and 288c (see FIGS. 59 (2) and 60) that act as a reference plane for the spirit level and the spirit level mounted on the upper side portion 288b and 288c. ,
(D) A connecting device 185 (FIG. 59 (1)) that connects the first pipe 11 and the second pipe 12 so as to be angularly displaceable around the pipe shafts 238a and 238b on the common straight line.
(E) A soft resin extruder 85 that supplies the molten soft resin, and
(F) Member 87 that supplies the soft resin from the soft resin extruder 85 to the soft resin supply path 213.
When,
(G) A cooling flattening device 91 that cools and flattens the corner material 80 from the extrusion die 73 by winding or pressing it on a roller having a plurality of horizontal rotation axes arranged vertically.
It is an extrusion molding apparatus for corner materials, which comprises.
For extrusion molding of the flat corner material 80, the connecting device 185 is a combination of the first tube 11 and the second tube 12, similar to the connecting devices 5 and 13 of the V-shaped or U-shaped corner materials 25 and 66. Allows mutual angular displacement around each axis, i.e. tube axis 238, to allow tube axis 238 of the second tube 12 of mold 73.
Since the posture around b, that is, the angular displacement can be adjusted, the rotation angle adjusting structure for setting the angular displacement position around the tube shaft 238b in the resin moving direction of the mold 73 is realized.
Similar to the connecting devices 5 and 13 (FIGS. 2 and 15), the connecting device 185 (FIG. 59 (1)) allows the mold 73 to be attached / detached / replaced and maintained by a simple operation. Therefore, in manufacturing the flat corner material 80, the productivity can be increased.
According to the cooling flattening device 91, the flat corner material 80 can be cooled and flattened at the same time with a simple configuration. Further, (1) the production speed, that is, the line speed can be improved, (2) the sizing device 9 having a complicated structure for V-shaped or U-shaped corner materials and the like becomes unnecessary, and (3) flat type. The corner material 80 does not have to be caught in the cooling flow hole 33 (FIG. 2) in the sizing device 9 and interrupt the operation while moving.
The present invention
The connecting devices 5, 13, and 185 that connect the first pipe 11 and the second pipe 12 are
(C1) A first outward flange 221 provided at the end of the first pipe 11 and having a contact surface 239 for the first seal, and
(C2) A second pipe 12 is provided at the end of the second pipe 12 so as to face the first outward flange 221.
A second outward flange 223 having a sealing contact surface 241 and
(C3) The first and second outward flanges 221 and 223 are tightened in a direction close to each other, and the first and second sealing contact surfaces 239 and 241 are brought into contact with each other to achieve sealing. It is characterized by having.
The present invention
The connecting devices 5, 13, and 185 that connect the first pipe 11 and the second pipe 12 are
(A) A first outward flange 221 provided at the end of the first pipe 11.
A truncated cone-shaped first inclined surface 222 that is radially inward as it is directed inward of the pipe shaft 238a of the first pipe 11.
A first outward flange 221 having a first sealing contact surface 239 facing the outside of the pipe shaft 238a of the first pipe 11 over the entire circumference of the first outward flange 221 in the circumferential direction.
(B) A second outward flange 223 provided at the end of the second pipe 12 so as to face the first outward flange 221.
A truncated cone-shaped second inclined surface 224 that goes inward in the radial direction toward the inside of the pipe shaft 238b of the second pipe 12.
With the second sealing contact surface 241 capable of facing the outside of the pipe shaft 238b of the second pipe 12 and abutting the first sealing contact surface 239 over the entire circumference of the second outward flange 223 in the circumferential direction. Second outward flange 223 with
(C) A cover body 226 surrounding the first and second outward flanges 221 and 223.
It has a pair of cover body portions 227,228 formed in half.
The inner surfaces of the cover body portions 227 and 228 are contacted with the cover body 226 to which the first and second inclined surfaces 222 and 224 are in contact with each other.
(D) Tightening means 225
The cover body portions 227 and 228 are tightened in the direction close to each other so as to intersect the straight line.
Tightening means 2 in which the contact surfaces 239 and 241 for the first and second seals come into contact with each other to achieve the seal.
It is characterized by having 25.

According to the present invention, in manufacturing the corner material, the connecting devices 5, 13 and 185 first tighten the first and second outward flanges 221, 223 by the tightening means 225 in a direction close to each other. And the second sealing contact surfaces 239, 241 can be brought into contact with each other to achieve the sealing. Therefore, the sealing function is improved, no resin leakage or resin retention portion is formed, problems such as discoloration of the extruded product and resin discoloration do not occur, and the quality of the long molded product can be improved. Further, since the sealing is performed by crimping the contact surface 239 for the first seal and the contact surface 241 for the second seal of the sealing cylinder 240, damage such as scratches, dents, and deformations of the pressure-bonded portion can be confirmed. It is easy to modify and adjust, and it is easy to maintain.

It is a simplified system diagram which shows the whole structure of the V-shaped corner material manufacturing apparatus 1. FIG. 5 is a perspective view showing a simplified view of an air injection cooling device 8 and a sizing device 9 in which an adapter 3 provided in an extruder 2 and a mold 4 are connected by a pipe connecting device 5 and heated by a heating device 7. It is a perspective view which shows the adapter 3, the mold 4, the pipe connecting device 5, and the heating device 7 in a disassembled and simplified manner. It is sectional drawing which shows the connection device 5 of a pipe and the vicinity thereof. It is a side view of one tube 11 attached to an adapter 3 and connected to a mold 4 by a connecting device 5, and the vicinity thereof. It is a side view of the other pipe 12 connected by the connecting device 5 of the mold 4 and its vicinity. It is a front view of the connection device 5 connecting pipes 11 and 12. It is sectional drawing of the connection device 5 seen from the cut plane line VIII-VIII of FIG. It is a partial enlarged sectional view which shows the connection state of the 1st and 2nd outward flanges 221 and 223 by the connection device 5. It is a figure which shows the connection procedure of the 1st pipe 11 and the 2nd pipe 12. It is a figure which shows the connection procedure of the 1st pipe 11 and the 2nd pipe 12. It is a figure which shows the connection procedure of the 1st pipe 11 and the 2nd pipe 12. It is a figure which shows the connection procedure of the 1st pipe 11 and the 2nd pipe 12. It is a figure which shows the connection procedure of the 1st pipe 11 and the 2nd pipe 12. It is a simplified front view of the connection device 13 of another embodiment of the present invention. It is a perspective view seen from the upstream of the mold 4. It is a perspective view of the mold 4 seen from the downstream. It is a perspective view of the upstream mold plate 16 constituting the mold 4 seen from the upstream. It is a perspective view of the upper mold plate 16 seen from the downstream. It is a figure which shows the upstream mold plate 16. It is a rear view of the upstream mold plate 16 as seen from the upstream. It is a front view which saw the mold plate 16 of the upstream from the downstream. It is a figure which shows the downstream mold plate 18 which constitutes the mold 4. It is an enlarged front view which shows the part of the flow hole 277 of the downstream mold plate 18 enlarged. It is sectional drawing which shows the section E of FIG. 23 enlarged. It is a partial enlarged front view seen from the downstream of the downstream mold plate 18. It is a perspective view seen from the upstream of the mold plate 18 of the downstream. It is an exploded perspective view which saw the 1st mold member 21, the 2nd mold member 22 and the 3rd mold member 23 which make up the downstream mold plate 18 from the upstream. It is a perspective view which looked at the 2nd mold member 22 which constitutes the downstream mold plate 18 from the upstream. It is a perspective view which looked at the 3rd mold member 23 which constitutes the downstream mold plate 18 from the upstream. It is a cross-sectional view perpendicular to the axis of the V-shaped corner material 25 extruded by the mold 4. It is a perspective view of the heating device 7. It is a top view of the heating device 7. It is an exploded perspective view of the heating device 7. It is an enlarged sectional view of the terminal piece 27 of a heating apparatus 7 and its vicinity. It is an enlarged sectional view of the terminal piece 27 of a heating apparatus 7 and its vicinity. It is a simplified plan view of the heating device 28 of another embodiment of the present invention. It is a figure which shows the structure of the cooling device 30 by an air injection. It is a right side view of the 1st pick-up device 44. It is a rear view which looked at the 1st pick-up apparatus 44 from the upstream. It is a right side view which shows the part of the 1st pick-up apparatus 44 enlarged. It is a top view which shows the part of the 1st pick-up apparatus 44 enlarged. It is a right side view of the 1st pick-up apparatus 46 in another embodiment of this invention. It is a rear view seen from the downstream of the 1st pick-up apparatus 46. It is sectional drawing of the V-shaped corner material 48 of another embodiment of this invention. It is a figure which shows the structure of the drilling apparatus 49 in a simplified manner. It is a perspective view seen from the front which shows the vicinity of the punching means 50, 51 of the drilling device 49. It is a perspective view which shows the perforated state of the V-shaped corner material 25. FIG. 5 is a perspective view showing a state in which one adhesive surface of the double-sided tape 54 is adhered to the V-shaped corner material 25 and the release paper 55 is adhered to the other adhesive surface. It is a perspective view which shows the 2nd pick-up apparatus 56 in a simplified manner. It is a side view of the upstream mold plate 62 in the U-shaped corner material manufacturing apparatus 61 in another embodiment of this invention. It is a rear view seen from the upstream of the upstream mold plate 62. It is a front view seen from the upstream of the upstream mold plate 62. It is a front view which looked at the downstream mold plate 63 from the downstream. It is a perspective view seen from the upstream of the mold plate 63 of the downstream. It is a perspective view which shows the 1st mold member 64 and the 2nd mold member 65 which constitute the downstream mold plate 63. FIG. 5 is a cross-sectional view perpendicular to the axis of the U-shaped corner material 66 extruded according to the configuration shown in FIGS. 51 to 56. It is a front view of the cooling flow hole 70 of the sizing mold 674 seen from the downstream. It is a figure which shows the whole structure of the flat corner material manufacturing apparatus 72, and the mold 73 thereof in another embodiment of this invention. It is an exploded perspective view which shows the 1st mold plate 74, the 2nd mold plate 75, and the 3rd mold plate 76 which make up the mold 73 for a flat corner material. It is a perspective view seen from the upstream of the 3rd mold plate 76. It is a front view which looked at the 1st mold plate 74 from the downstream. It is a rear view which looked at the 1st mold plate 74 from the upstream. It is sectional drawing of the 1st mold plate 74. It is an enlarged rear view which shows a part seen from the upstream of the 3rd mold plate 76. It is an enlarged perspective view which shows a part seen from the upstream of the 3rd mold plate 76. It is a perspective view which shows the soft resin extruder 85. It is sectional drawing which shows the spherical pipe joint 87 for supplying the soft resin to the upper mold member 81 of the 3rd mold plate 76 which constitutes the mold 73 from the soft resin extruder 85. It is a top view which shows one pipe 89 in a spherical pipe joint 87. It is a bottom view which shows the bag nut 90 of the spherical pipe joint 87. It is a simplified front view which shows the whole structure of a cooling flattening apparatus 91. It is a simplified perspective view which shows the whole structure of a cooling flattening apparatus 91. It is a side view which saw a part of the cooling flattening apparatus 91 from the right side of FIG. 71 which is upstream. It is a horizontal sectional view which shows the upper support 527 and its vicinity. It is a vertical sectional view of a part of the upper part of the 1st pressurizing means 531. It is a figure which shows the structure of the guide member 513. It is a side view which shows the 1st tube 11 of the connection device 5 of still another embodiment of this invention. It is the figure which looked at the 1st pipe 11 from the upstream. It is the figure which looked at the 1st pipe 11 from the downstream. It is a side view which shows the 1st tube 11 of the connection device 5 of still another embodiment of this invention. It is the figure which looked at the 1st pipe 11 from the upstream. It is the figure which looked at the 1st pipe 11 from the downstream. It is a side view which shows the 1st tube 11 of the connection device 5 of still another embodiment of this invention. It is the figure which looked at the 1st pipe 11 from the upstream. It is the figure which looked at the 1st pipe 11 from the downstream. It is a front view which shows a part of the cooling flattening apparatus 91A of still another embodiment of this invention. It is a front view which shows the cooling flattening apparatus 91B of still another embodiment of this invention. It is a front view which shows the cooling flattening apparatus 91C of still another embodiment of this invention. It is sectional drawing which shows the structure of a part of the connection device of the prior art in a simplified manner. It is a figure which shows the manufacturing apparatus of the long irregular shape extrusion molded article of the prior art. It is a figure which shows the manufacturing apparatus of the long deformed extrusion molded article of one embodiment of this invention.

FIG. 1 is a simplified system diagram showing the overall configuration of the V-shaped corner material manufacturing apparatus 1. The raw material 93 for the V-shaped corner material is supplied to the extruder 2, melted, passed through the adapter 3 of the extruder 2, the first pipe 11, and the second pipe of the mold 4 via the pipe connecting device 5. Guided to 12. (1) to (5) in FIG. 1 are cross-sectional views seen from the downstream along the moving path from the upstream to the downstream of the V-shaped corner material 25, and the reference numerals a and b are the corners thereof. Each free end portion of the material 25 is shown. (2), (4), and (5) in FIG. 1 correspond to (1), (2), and (4) in FIG. 53, which will be described later, respectively.

The molded product of the V-shaped corner material 25 from the mold 4 heated by the heating device 7 is moved in a posture in which the cross section perpendicular to the axis is convex upward, cooled by the cooling device 8 by air injection, and is cooled by the sizing device 9. Be cooled. The corner material 25 from the sizing device 9 is moved downstream in the posture (1) in FIG.

After that, the corner material 25 is twisted clockwise by 45 ° around the longitudinal axis along the moving direction when viewed from the downstream, and is picked up by the first picking device 45 in the posture (2) in FIG. Then, after passing through the posture of (3) in FIG. 1 which was originally twisted 45 ° counterclockwise, and further twisted 45 ° counterclockwise, (4) in FIG. In this posture, the corner material 25 is first drilled by being guided by the drilling device 49. Subsequently, in the drilling device 49, the corner material 25 is twisted 90 ° clockwise (see (3) in FIG. 53 described later), and the corner material 25 is punched second. .. The corner material 25 from the drilling device 49 is twisted 45 ° counterclockwise and returned to an upwardly convex posture as shown in (5) in FIG. 1, and is guided to the double-sided tape sticking device 53. Be taken. A double-sided tape 54 for temporary fixing at the time of construction is attached to the corner material 25 by the double-sided tape attaching device 53. After that, the slack of the corner material 25 is removed by the second pick-up device 56, and the product is cut to a predetermined length by the standard length cutting device 57.

In FIG. 2, the adapter 3 provided in the extruder 2 and the mold 4 are connected by a pipe connecting device 5, heated by a heating device 7, and further, a cooling device 8 by air injection and a sizing device 9 using cooling water are shown. It is a simplified perspective view. FIG. 3 is a perspective view showing the adapter 3, the mold 4, the pipe connecting device 5, and the heating device 7 in a disassembled and simplified manner. FIG. 4 is a cross-sectional view showing the pipe connecting device 5 and its vicinity. FIG. 5 is a side view of one of the pipes 11 attached to the adapter 3 and connected to the mold 4 by the connecting device 5 and its vicinity.

FIG. 6 is a side view of the other pipe 12 connected by the connecting device 5 of the mold 4 and its vicinity. FIG. 7 is a front view of the connecting device 5 for connecting the pipes 11 and 12. FIG. 8 is a cross-sectional view of the connecting device 5 as viewed from the cut plane line VIII-VIII of FIG. FIG. 9 is a partially enlarged cross-sectional view showing a connection state of the first and second outward flanges 221 and 223 by the connecting device 5. 10 to 14 are views showing a procedure for connecting the first pipe 11 and the second pipe 12.

With reference to these drawings, the extruder 2 is provided in a fixed position. The adapter 3 provided in the extruder 2 has a tube 11. The breaker 230 has a large number of small holes that generate back pressure for kneading in the extruder 2. The pipe 11 and the second pipe 12 of the mold 4 are airtightly connected by a connecting device 5 (FIGS. 2 to 14) or 13 (FIG. 15 described later). The adapter 3 and the like may be heated by the heating device 7 described later.

The pipe connecting device 5 connects the first pipe 11 that supplies the molten resin from the extruder 2 and the second pipe 12 of the mold 4 that guides the molten resin. A first outward flange 221 is provided at the end of the first pipe 11. The first outward flange 221 is formed with a truncated cone-shaped first inclined surface 222 that is radially inward toward the inside of the pipe shaft 238a of the first pipe 11 (to the right in FIG. 5). .. A second outward flange 223 facing the first outward flange 221 is provided at the end of the second pipe 12. The second outward flange 223 is formed with a truncated cone-shaped second inclined surface 224 that extends inward in the radial direction toward the inside (left side in FIG. 6) of the pipe shaft 238b of the second pipe 12. .. The pipe shafts 238a and 238b of the first and second pipes 11 and 12 are on a common straight line. The straight line extends laterally (horizontally and horizontally in FIGS. 4 to 6 and 8 to 14), for example, horizontally.

The first outward flange 221 is coaxial with the first pipe 11 and is inward of the pipe shaft 238a (to the right in FIG. 5) with respect to the first outward flange 221 and is the second outward flange 221 over the entire circumference in the circumferential direction. It has a sealing receiving surface 239 which is a first sealing contact surface formed by being recessed in an annular shape facing the surface. The sealing receiving surface 239 is perpendicular to the pipe shaft 238a. The second outward flange 223 is coaxial with the second pipe 12, is outward of the pipe shaft 238b (to the right in FIG. 6) with respect to the second outward flange 223, and is the first outward flange 221 over the entire circumference in the circumferential direction. It has a sealing cylinder portion 240 that protrudes toward the surface. The sealing protrusion 241 which is the second sealing contact surface of the tubular portion 239 is perpendicular to the pipe shaft 238b. Airtightness is achieved by the contact between the receiving surface 239 and the sealing protrusion 241.

A cover body 226 surrounding the first and second outward flanges 221 and 223 is provided. The cover body 226 has a pair of cover body portions 227 and 228 formed in a half shape. The first and second inclined surfaces 222 and 224 are in surface contact with the inner surfaces 233, 234; 235 and 236 of the cover body portions 227 and 228. The first and second inclined surfaces 222 and 224 of the first and second outward flanges 221 and 223 and the inner surfaces 233, 234; 235 and 236 of the cover body portions 227 and 228 have a truncated cone shape. In the plane including the axis 238, when the angle formed with the axis 238 is θ2, the apex angle is 2 (90-θ2) °.

The tightening means 225 has bolts 105 and 106. The bolts 105 and 106 are hexagon socket head bolts, which can be rotated by a wrench, and have heads 105a and 106a and shaft portions 105b and 106b. The bolt heads 105a and 106a have a larger diameter than the shaft portions 105b and 106b. The bolts 105 and 106 have axes perpendicular to the virtual surface including the pipe shaft 238 at both ends 101 and 102 in the circumferential direction of one cover body portion 227. Insertion holes 116 and 117 through which the shaft portions 105b and 106b of the bolts 105 and 106 are inserted and the heads 105a and 106a of the bolts 105 and 106 are locked to the circumferential end 101 or 102 of the cover body portion 227. The receiving seats 118 and 119 are formed.

The peripheral end portions 103 and 104 of the other cover body portion 228 are formed with screw holes 114 and 115 into which the shaft portions 105b and 106b of the bolts 105 and 106 are removably screwed. The shaft portions 105b and 106b of the bolts 105 and 106 are screwed through the bolt insertion holes 116 and 117 and are removable into the screw holes 114 and 115 formed at both ends 103 and 104 in the circumferential direction of the other cover body portion 228. Be worn.

The tightening means 225 tightens the cover body portions 227 and 228 in a direction close to each other (for example, in the vertical direction of FIGS. 4, 7, and 15 perpendicular to the pipe axis 238). As a result, the first inclined surface 222 and the second inclined surface 224 come into contact with the inner surfaces 233, 234; 235, and 236 of the cover body portions 227 and 228, respectively, and the pair of cover body portions 227 and 228 form the pipe shaft. The wedge action is exerted by being close to each other in the direction perpendicular to 238.

Therefore, the sealing receiving surface 239 of the first outward flange 221 of the first pipe 11 and the sealing protruding surface 241 of the tubular portion 239 of the second outward flange 223 of the second pipe 12 exert a large force on each other. Contact as described above. Therefore, the first pipe 11 and the second pipe 12 can be airtightly connected without leakage of the fluid such as the molten resin to be transported without a sealing material such as packing.

A reference surface 287 on which a spirit level is mounted is formed on a member connected to the second pipe 12, for example, a mold plate 16 of a mold 4 shown in FIG. 16 described later. The level is also called a level or a level, and may be, for example, a bubble level. With the bolts 105 and 106 of the tightening means 225 loosened, the angular displacement of the first and second pipes 11 and 12 around the straight line common to the pipe shafts 238a and 238b can be easily adjusted by using a spirit level. It can be carried out. After adjusting the angular displacement, the bolts 105 and 106 are tightened to set the angular displacement between the first and second pipes 11 and 12.

FIG. 15 is a simplified front view of the connecting device 13 of another embodiment of the present invention. In this embodiment, hinge pieces 98 and 99 of the hinge 97 constituting the tightening means 225 are fixed to the respective end portions 102 and 104 of the pair of cover body portions 95 and 96 having the cover body 94 of the connecting device 13. Will be done. The axis of the hinge pin 100 is parallel to the tube axis 238. The other ends 103 and 104 of the cover body portions 95 and 96 are configured to be openable and closable by the hinge pin 100. The other ends 103 and 104 are detachably connected and tightened by bolts 105.

The inner surfaces 233, 234; 235, 236 of each cover body portion 227 and 228 may be formed in a truncated cone shape as described above, but in other embodiments, they are not formed in a truncated cone shape. It may be a protrusion that abuts on the first and second inclined surfaces 222 and 224. In yet another embodiment of the embodiment, instead of the first and second inclined surfaces 222 and 224, the shape is a protrusion or the like, and the inner surfaces 233, 234; 235, 236 of each cover body portion 227 and 228 are truncated cone-shaped. It may be formed. In another embodiment, the mold 4 may be provided with a spirit level fixed.

In FIGS. 1 to 14 and the like, the recesses 704 and the flow holes 277, 278; 416, 417; 204 to 207 in the second pipe 12 and the mold plate 16 are aligned along the pipe shaft 238b for convenience of understanding. It is shown in a simplified form as a cylinder that is circular like this.

The present invention is as shown in FIGS. 16, 48, 52 and the like.
The flow holes of the mold for extruding a corner material such as a V-shape or a U-shape having a bent cross section perpendicular to the axis are arranged in a shape such as an inverted V-shape or an inverted U-shape that is convex upward.

The reference surface 287 for the leveling device is a virtual surface perpendicular to the resin movement direction of the flow holes in the extrusion molding die and is perpendicular to the bisector 289 at the angle θ5 of the bent portion, and in one embodiment of the present invention. Instead of the bisector 289, a plane of symmetry 289 along the axis of the inverted V-shaped or inverted U-shaped corner material may be used.

The posture of the mold is easily adjusted so that the symmetrical plane 289 of the corner material is vertical to the bent portion connecting the pair of plate members of the corner material formed in the inverted V shape or the inverted U shape.

The datum reference surface 287 may be formed on or over one of the upstream and downstream mold plates 16 and 18.

Further describing the configuration, the extruder 2 has a first pipe 11, and the first pipe shaft 238a of the first pipe 11 extends laterally, for example horizontally. The molten synthetic resin is supplied from the first pipe 11. The shape of the outlet end surface 701 in the virtual plane perpendicular to the first pipe shaft 238a downstream from which the resin of the first pipe 11 is guided is substantially circular with the first pipe shaft 238a as the center. The first sealing contact surface 239 (FIG. 9); 241e (FIG. 9), which is connected to the outlet end surface 701 of the first pipe 11 and faces outward in the axial direction of the first pipe shaft 238a over the entire circumference of the first pipe shaft 238a in the circumferential direction. FIG. 14) is formed.

The extrusion molding dies 4, 60, 73, 681 have a second pipe 12, and the second pipe shaft 238b of the second pipe 12 is on a horizontally extending straight line common to the first pipe shaft 238a. The shape of the inlet end face 702 in the virtual plane perpendicular to the upstream second pipe shaft 238b from which the resin of the second pipe 12 is guided is the same as the shape of the outlet end face 701 of the first pipe 11 centered on the second pipe shaft 238b. It is a circle with substantially the same inner diameter. It is continuous with the inlet end surface 702 of the second pipe 12, faces the first seal contact surfaces 239, 241e over the entire circumference of the second pipe shaft 238b in the circumferential direction, and abuts on the first seal contact surfaces 239, 241e. A second sealing contact surface 241 and 239e that can be formed is formed. The resin from the inlet of the second pipe 12 has the same cross-sectional shape as the long molded products 25, 66, 80, 672 and the recess 704 thereof, which is extruded through a recess 704 recessed from the inlet toward the downstream. It is guided to flow holes 277, 278; 416, 417; 204 to 207 having a cross-sectional shape on the way from 722 to the same cross-sectional shape, or having a cross-sectional shape close to the same cross-sectional shape. The cross-sectional area of the recess 704 and the flow holes 277, 278; 416, 417; 204 to 207 perpendicular to the second pipe shaft 238b is formed smaller from the inlet as it goes downstream from the inlet. The connecting devices 5 and 13 connect the first pipe 11 and the second pipe 12 with the first and second sealing contact surfaces 239, 241e; 241 and 239e in contact with each other to achieve a seal.

FIG. 16 is a perspective view seen from the upstream of the mold 4. FIG. 17 is a perspective view of the mold 4 as viewed from the downstream. FIG. 18 (1) is a perspective view of the upstream mold plate 16 constituting the mold 4 as viewed from the upstream. FIG. 18 (2) is a perspective view showing a recess 704 formed by milling the mold plate 16. FIG. 19 is a perspective view of the upstream mold plate 16 as viewed from the downstream. FIG. 20 (1) is a side view of the upstream mold plate 16. FIG. 20 (2) is a cross-sectional view seen from the cut plane lines 20 (2) -20 (2) of FIG. 21 described later. FIG. 20 (3) is a cross-sectional view seen from the cut plane lines 20 (3) -20 (3) of FIG. 21 described later. FIG. 20 (4) is a simplified side view showing a state in which the resin from the inlet of the second pipe 12 collides with the surface of the 704 and flows smoothly. FIG. 20 (5) is a cross-sectional view corresponding to FIG. 20 (2) showing another embodiment of the present invention. FIG. 21 is a rear view of the upstream mold plate 16 as viewed from the upstream. FIG. 22 is a front view of the upstream mold plate 16 as viewed from the downstream.

As shown in FIGS. 21 (1) to 21 (4), the recess 704 of the second pipe 12 is formed by a rotating body around the second pipe shaft 238b of the second pipe 12, and has a smaller diameter toward the downstream side. The arc surface 705 is defined by a plane 706 that is continuous with the most downstream end of the arc surface 705 and is perpendicular to the second pipe axis 238b. In the plane including the tube shaft 238b, the arcuate surface 705 has a radius R1 and its center 721 (FIG. 20 (2)) is a virtual plane 724 (and thus parallel to the paper surface of FIG. 21) perpendicular to the tube axis 238b. In FIG. 20 (2)), it exists on a virtual circle 725 having a radius R725 centered on the tube shaft 238b. The tangent line 708 in which the most downstream end of the arcuate surface 705 in the plane including the pipe shaft 238b is continuous with the plane 706 is on a circle in which the virtual cylinder 726 including the virtual circle 725 and having the pipe shaft 238b as the axis intersects the plane 706.

The flow holes 277, 278; 416, and 417 have a shape for extruding a corner material having a V-shaped or U-shaped cross section perpendicular to the axis, and its upstream ends 278a and 416a face the arcuate surface 705.

The recess 704 recessed from the inlet toward the downstream is formed by a rotating body around the pipe shaft 238b, and a plane 706 perpendicular to the pipe shaft 238b is continuous at the downstream end of the arc surface 705, so that no processing effort is required. .. For example, the second pipe 12 can be mounted on the spindle and driven to rotate, and the cutting can be performed while moving the cutting tool in parallel with the axis of the spindle, which is easy to perform.

In another embodiment of the present invention, as shown in FIG. 18 (2), it takes a little time and effort for processing, but the recess 704 may be formed by milling. In milling, the second tube 12 and the mold plate 16 are fixed to a movable table, and the table is moved laterally with respect to the axis of the rotating shaft to which the rotating blade is attached. Two planes 711 to 716 are cut to form a recess 704.

The recess 704 is defined by the arcuate surface 705 and the flat surface 706, and the upstream ends 278a (FIG. 21) and 416a (FIG. 52 below) of the flow holes 277, 278; 416, 417 are the arcuate surface 705 and / or the flat surface 706. The flow rate of the resin guided to the flow holes 277, 278; 416, 417 can be adjusted by grinding the upstream end thereof. Therefore, it is easy to adjust the flow rate of the resin to the flow holes 277, 278; 416, 417.

Sites 718 (FIG. 21) at the upstream ends 278a, 416a (FIG. 52) of the flow holes 277, 278; 416, 417 corresponding to the bent portions 155, 333 and their vicinity of the V-shaped and U-shaped corner members 25 and 66, 719 (FIG. 52) is important for achieving the desired thickness of the V-shaped and U-shaped corner members 25 and 66. In this embodiment, the portions 718, 719 are ground by grinding the upstream ends 278a (FIG. 21) and 416a (FIG. 52) of the flow holes 277, 278; 416, 417 facing the arcuate surface 705 and / or the plane 706. It is easy to accurately set the flow rate of the resin guided to the flow holes 277, 278; 416, 417 in the vicinity.

FIG. 20 (5) is a cross-sectional view showing another embodiment of the present invention, and corresponds to FIG. 20 (2) described above. This embodiment is similar to the previous embodiment, and the corresponding parts are designated by the same reference numerals. The arcuate surface generally indicated by reference numeral 705 is composed of a plurality of (for example, 3) individual arcuate surfaces 705a to 705c. These individual arcuate surfaces 705a to 705c are connected so as to move downstream without a large dent in the downstream and therefore without the resin staying. Each individual arc surface 705a to 705c has radii R2 to R4, and their centers 721a to 721c (FIG. 20 (5)) are displaced along the tube axis 238b and are virtual planes perpendicular to the tube axis 238b. Within 724a to 724c (FIG. 20 (5)), they exist on virtual circles having different radii around the tube shaft 238b. The tangent line 708 in which the most downstream end of the most downstream arc surface 705c in the plane including the pipe shaft 238b is continuous with the plane 706 is a virtual cylinder 726c including a virtual circle in which the center 721c exists and having the pipe shaft 238b as the axis. It is on the circle that intersects with.

Further, FIG. 23 (1) is a front view of the downstream mold plate 18 constituting the mold 4 as viewed from the downstream. FIG. 23 (2) is a cross-sectional view taken from the cut surface line 23 (2) -23 (2) of FIG. 23 (1). FIG. 24 is an enlarged front view showing a part of the flow hole 277 of the downstream mold plate 18 in an enlarged manner. FIG. 25 is an enlarged cross-sectional view showing section E of FIG. 23. FIG. 26 is an enlarged cross-sectional view of a part of the downstream mold plate 18 seen from the downstream side. FIG. 27 is a perspective view of the downstream mold plate 18 as viewed from the upstream. FIG. 28 is a perspective view of the first mold member 21 constituting the downstream mold plate 18 as viewed from the upstream. FIG. 29 is a perspective view of the second mold member 22 constituting the downstream mold plate 18 as viewed from the upstream. FIG. 30 is a perspective view of the third mold member 23 constituting the downstream mold plate 18 as viewed from the upstream.

The mold 4 includes an inlet mold plate 16 connected to the extruder 2 by a connecting device 5.
It has an outlet mold plate 18 attached to the inlet mold plate 16.

In the extrusion molding die 4 for the corner material 25 in which the pair of plate members 152 and 153 shown in FIG. 31 to be described later are connected by the bent portion 155, the inner surface of each pair of plate members 152 and 153 and the bent portion 155. The first mold member 21 having the L-shaped flow surface 262, 263 of FIG. 20 forming the above, the second mold member 22 having the flow surface 264 forming the outer surface of one plate member 152, and the other. The third mold member 23 having the flow surface 265 forming the outer surface of the plate member 153 is removably fixed by a connecting means such as a bolt 471.

FIG. 24 shows a part of the flow hole 277 formed by the first to third mold members 21 to 23, and in the part of the flow hole 277, the vicinity of the bent portion 155 including the region 301 of the flat portion of the corner material 25 is It is formed. The flow surfaces 262 to 265 are extruded by extruding the angle θ5 of the plate members 152 and 153 of the corner material 25 to, for example, 90 °, and then set to a desired angle by the sizing mold 9.

The bolt 471a is a hexagon socket head cap screw, has a bolt head and a bolt shaft portion having an outer diameter smaller than that of the bolt head, and the bolt head is the first mold of the downstream mold plate 18. The bolt shaft portion inserts the bolt insertion hole 472a and is upstream in a state of being flush with the downstream end face of the plate 21 or recessed from the end face, that is, not protruding from the downstream end face of the first mold plate 21. It is removably screwed into the screw hole 473a of the mold plate 16. Since the bolt head of the hexagon socket head cap screw 471a does not protrude from the downstream end face of the first mold plate 21, even if the corner material 25 from the flow hole 277 bends downward during operation, it will come into contact and be damaged. However, the yield is improved.

The bolts 471b to 471f are also hexagon socket head bolts similar to the bolts 471a, but the bolt heads protrude from the downstream end faces of the first to third mold members 21 to 23 of the mold plate 18. Then, the bolt shaft portion inserts the bolt insertion holes 472b to 472f and is screwed removably into the screw holes 473b to 473f of the mold plate 16.

The hexagon socket head cap screw 471g to 471L are inserted through the bolt insertion holes 472g to 472L from the side portion, that is, the outer peripheral surface of the mold plate 18, and are removably screwed into the screw holes 473g to 473L of the mold plate 16.

The bolt heads of the bolts 471g to 471L are flush with the outer peripheral surface of the mold plate 18 or are recessed from the outer peripheral surface and do not protrude. Therefore, the outer peripheral surfaces 310 (see FIGS. 32 and 33) of the electric heater members 305 and 306 of the heating device 7 can be brought into surface contact with the entire outer peripheral surfaces of the mold plates 16 and 18 to ensure heat transfer. it can.

The first to third mold members 21 to 23 are formed with contact surfaces 267 to 274 raised from the flow surfaces 262 to 265 on the outer side of the flow surfaces 262 to 265 forming the flow holes 277. The contact surfaces 267 and 268 of the first mold member 21 come into contact with the contact surfaces 269 and 272 of the second and third mold members 22, 23, respectively. The contact surfaces 270 and 271 of the second mold member 22 come into contact with the contact surfaces 273 and 274 of the third mold member 23, respectively. The bottom of the guide groove 456 between the contact surfaces 270 and 271 of the second mold member 22 and the top of the guide protrusion 454 between the contact surfaces 273 and 274 of the third mold member 23 that fit into the guide groove 456. It does not come into contact with the surface.

The upstream ends of the flow planes 262 to 265 are rounded, curved, and chamfered, as collectively indicated by reference numeral 475. As a result, the resin is smoothly guided into the flow holes 277.

Only the contact surfaces 267 and 268 of the second or third mold members 22 and 23 of the first mold member 21 need to be ground for repairing the flow surfaces 262 to 265 when they are worn. Even after the contact surfaces 267 and 268 are ground and repaired, the bolts 471a and 471b insert the bolt insertion holes 472a and 472b of the first mold member 21 and screw holes 473a of the upstream mold plate 16. The bolt insertion holes 472a, 472b are formed to have a large inner diameter of their circular cross section so that they can be screwed into the 473b, or have an elongated oval shape, for example, along a plane of symmetry 289 (see FIG. 28). Is formed in.

In order to repair the flow surfaces 262 to 265 when they are worn, it is only necessary to grind the contact surface 269 of the second mold member 22 with the first mold member 21. Only the contact surface 272 of the third mold member 23 with the first mold member 21 needs to be ground. Alternatively, only the contact surfaces 273 and 274 of the third mold member 23 with the second mold member 22 need to be ground. Further, in addition to grinding the contact surfaces 267 to 274, the guide protrusions 281 and 282 may be ground, or the guide notches 284 and 285 or the guide groove may be ground.

Of the first to third mold members 21, 22 and 23, only the damaged mold members 21, 22 and 23 whose flow holes are severely worn need to be replaced, which is economical.

As shown in FIGS. 26 and 27,
An extrusion mold having a plurality of divided mold members in a virtual plane perpendicular to the resin moving direction.
This is an extrusion molding die characterized in that an intermediate position of a thickness of a flow hole perpendicular to the resin moving direction is a divided surface parallel to the resin moving direction.

The contact surfaces 267 to 274 of the mold members 21 to 23 are in contact with each other to form a divided surface of the extrusion molding die, and in FIG. 26, the thickness direction of the flow hole forming each plate member of the corner material. The substantially central position of may be a dividing surface, for example, ΔL1≈ΔL2. This prevents burrs from being generated from the free end portions 279 at both ends in the width direction of each plate member of the corner material such as V-shaped, U-shaped, and flat-shaped. This prevents burrs from being generated from the free end portions 279 at both ends in the width direction of the plate members 152, 153; 331; 332; 424; 425 of the corner members 25, 66, 80 such as V-shaped, U-shaped, and flat-shaped. .. The present invention can be carried out not only in relation to corner materials but also in relation to other molded articles.
Part 272, 268 (FIG. 23) of these split planes 269, 267; 272, 268 (FIG. 23) is along the guide cutouts 284, 285, as shown in FIG. 23 and the like. It extends in the vertical direction of FIG. 27.

In the mold plate 18 downstream of the extrusion mold 4 having a plurality of divided mold members 21 to 23 in a virtual plane perpendicular to the resin moving direction.
In FIG. 26, which is perpendicular to the resin moving direction of the flow holes 275 formed by the flow surfaces 262 to 265, the intermediate position of the thickness in the vertical direction thereof is defined as a dividing surface parallel to the resin moving direction.

The plate members 152, 153; 331, 332; 424, 425 are formed so as to become thinner toward the free end portions 279 at both ends in the width direction thereof. As a result, in the state where the wall covering material is attached over the corner materials 25, 66, 80 and the wall surface of the building, the step near the free end portion 279 becomes inconspicuous, and a beautiful finish is obtained.

In the mold plate 16 on the entry side or the exit side having a substantially rectangular shape as a whole, a pair of guide protrusions 281 and 282 parallel to each other in a virtual plane perpendicular to the resin movement direction are provided on both sides of the rectangle. Form and
In the mold plate 18 on the exit side or the entrance side having a substantially rectangular shape as a whole, a pair of guide notches 284, 285 or guide grooves parallel to each other in a virtual plane perpendicular to the resin movement direction are provided in the rectangular body. The guide protrusion and the guide notch or the guide groove are fitted to each other.

Positioning of the entry-side mold plate 16 and the exit-side mold plate 18 around the axis in the resin moving direction can be easily and accurately achieved.

In the extrusion molding die 4 having flow holes 277 and 278 in which the molded product is guided.
On the upper part of the mold 4, a datum reference surface 287 corresponding to the angular position of the flow holes 277 and 278 is formed around the axis parallel to the resin moving direction.

It is a rotation angle adjustment structure for setting the angular displacement position around the axis of the resin movement direction of the mold 4 in order to form the reference surface 287 for the level device of the mold 4 and facilitate the adjustment of the posture of the mold 4. ,
The position where the upper corner or curved portion corresponding to the bent portion 155 of the flow surface 278 such as the inverted V shape or the inverted U shape in the inlet mold plate 16 having an substantially rectangular shape as a whole should be a flat surface. The reference surface for the leveling device is 287, and in combination with the use of the pipe connecting device 5 described above, the adjustment work around the axis of the mold 4 is performed with the bolts 105 and 106 loosened. The flow holes 277 and 278 are configured to be plane-symmetric with respect to the plane of symmetry 289 perpendicular to the resin moving direction. The datum reference plane 287 is perpendicular to the plane of symmetry 289. The reference plane 287 for leveling equipment is a plane facing upward, and the outlet cross-sectional shape in the virtual plane perpendicular to the pipe shaft 238b of the second pipe 12 in the downstream flow hole 277 is around the pipe shaft 238b of the second pipe 12. It is horizontal in a predetermined position, that is, in a state in which the plane of symmetry 289 is in a vertical position.

The mold 4 is provided so that the vertical symmetrical plane 289 of the corner material 25 exists at the bent portion 155 connecting the pair of plate members 152 and 153 of the corner material 25 formed in an inverted V shape or an inverted U shape. Makes it easy to adjust the posture.

As shown in FIG. 31
In the corner material 25 in which the pair of plate members 152 and 153 are connected by the bent portion 155, the outer surface of the region 301 extending over the bent portion 155 and a part of the plate members 152 and 153 in the vicinity of the bent portion 155 is smoothly formed.
On the remaining outer surface of the plate members 152 and 153, a large number of uneven stripes 293 and 294 extending along the longitudinal direction of the corner material 25 are formed adjacent to each other in the width direction.

In the corner material 25 in which the pair of plate members 152 and 153 are connected by the bent portion 155,
A smooth outer surface that does not form uneven stripes 292 and 293 (sometimes called knurls) for increasing the adhesive force of wall covering materials such as cloth and wallpaper over the bent portion 155 and its vicinity. Let it be the region 301 of the smooth portion having. No uneven stripes appear on the outer surface of wall coverings such as cloth and wallpaper, resulting in a beautiful finish.

According to the present invention, an anchor effect can be achieved, which greatly improves the effect of the adhesive penetrating the holes 149, 150 to increase the adhesive force, and extra adhesive penetrates the holes 149, 150, thus outward. It does not stick out. The number, inner diameter, arrangement distribution, etc. of the holes 149 and 150 are selected so that the strength of the corner material 25 is not lowered due to the formation of the holes 149 and 150 and the mounting work is not hindered.

As shown in FIG. 16 and the like above,
The flow holes 277 and 278 of the mold 4 for extruding the corner material 25 such as a V-shape or a U-shape having a bent cross section perpendicular to the axis are arranged in a shape such as an inverted V-shape or an inverted U-shape that is convex upward. ..

Water droplets, foreign substances, etc. easily slip and fall from the surface of the corner material 25 and do not adhere to the corner material 25, improving the quality of the corner material 25. Even in a configuration in which water is sprayed or passed through the water tank to cool the corner material 25 downstream of the sizing device 9, the corner material 25 water is likely to fall and does not adhere thereafter.

FIG. 32 is a perspective view of the heating device 7. FIG. 33 is a plan view of the heating device 7. FIG. 34 is an exploded perspective view of the heating device 7. FIG. 35 is an enlarged cross-sectional view of the terminal piece 27 of the heating device 7 and the electric heater member 305 in the vicinity thereof along the width direction. FIG. 36 is an enlarged cross-sectional view of the electric heater member 305 along the longitudinal direction. In the heating device 7 shown in FIGS. 32 to 37, the outer peripheral surface of the object to be heated such as the mold 4 is surrounded by a pair of electric heater members 305 and 306 having the same structure in a half shape, and each electric heater. Both ends 308 and 309 of the members 305 and 306 are removably connected by fasteners such as a combination of bolts 311 and nuts 312. In FIG. 33, for convenience of illustration, the combination of the terminal piece 27, the bolt 311 and the nut 312 is shown in a staggered manner.

Each electric heater member 305, 306
A heating element 321 having a heating wire 316 surrounded by electrical insulators 319 and 320 is interposed between a pair of metal cover members 314 and 315.
One cover member 315 is formed with a recess 325 into which the truncated cone-shaped base 324 of the terminal piece 27 to which both ends 317 of the heating wire 316 are connected is fitted.
The shaft portion 326 of the terminal piece 27 is attached so as to project outward from the take-out hole 327 formed in the recess 325. The recess 325 has a circular cross section perpendicular to its axis and is formed to have a smaller diameter toward the outside (upper of FIGS. 35 and 36), for example, in the shape of a hollow truncated cone, and the nut 313. The electrical insulator 320, the holding piece 323, and the like are laminated and interposed along the outer surface shape of the base portion 324 and the inner surface shape of the recess 325 by tightening the support piece 328 and the like. The base portion 324 and the shaft portion 326 of the terminal piece 27 and the shaft portion 326 of the terminal piece 27 have their axes on a common straight line. Due to the electrical insulation between the shaft portion 326 and the cover member 315, the outer diameter of the shaft portion 326 is less than the inner diameter of the take-out hole 327 of the recess 325 formed in the cover member 315.

Even if there is a large or small error in the outer peripheral surface of the object to be heated such as the mold 4, by connecting the fasteners 311 and 312, it is possible to make close contact with the outer peripheral surface and heat with a good heat transfer coefficient.

Even if one of the pair of electric heater members 305 and 306 is damaged, only the damaged electric heater members 305 and 306 can be replaced and repaired, which is economically advantageous.

The heating wire 316 is formed by being wound around the outer peripheral portion of a support 318 made of an electrically insulating material at intervals in a coil shape. The heating wire 316 is made of, for example, a nichrome wire. The electrical insulators 319, 320 and the support 318 are made of, for example, mica. Thus, the heating element 321 is sandwiched between the electrical insulators 319 and 320. The end 317 of the heating wire 316 is connected to the connecting piece 322, and the shaft portion 326 of the terminal piece 27 is inserted through the connecting piece 322, whereby the terminal piece 27 is electrically connected to the end 317 of the heating wire 316. Will be done.

In the recess 325, a holding piece 323 made of a plurality of disc-shaped or substantially truncated cone-shaped electrical insulating materials is laminated with the electrical insulator 320. A support piece 328 made of an electrically insulating material is provided on the outer surface of the take-out hole 327 of the cover member 315. A pair of washers 329 made of a conductive material are provided on the support piece 328, and a terminal member 330 is sandwiched between these washers 329. A nut 313 is screwed onto the shaft portion 326 of the terminal piece 27.

Since the outer peripheral portion 310 connected to the end portions 308 and 309 of the electric heater member 305 comes into surface contact with the outer peripheral surface of the mold 4 to be heated, the angle θ3 with the end portions 308 and 309 (FIG. 36). The angle θ3 may be, for example, 45 ° in this embodiment. A line 307 to which electric power is supplied is connected to the terminal member 330. The outer peripheral portion 310 is individually indicated by subscripts a and b. As shown in FIG. 32, these outer peripheral portions 310a and 310b have an angle θ4 corresponding to the outer peripheral surface of the object to be heated, and may be, for example, 90 °. The other end 309 is similarly configured as the one end 308.

The cover members 314 and 315 are made of a metal material having good thermal conductivity, such as iron, stainless steel, and copper. On one cover member 314, a mounting portion 478 is formed at the free end of the end portion 308. Further, mounting portions 479 and 480 are formed on both side portions in the width direction of the end portion 308 of the cover member 314 and the outer peripheral portion 310. These mounting portions 478 to 480 are bent so as to partially overlap the outer surface of another cover member 315, and thus accommodate the electric insulators 319, 320, the heating element 321 and the like between the cover members 314 and 315. ..

These electric heater members 305 and 306 are formed in a substantially elongated shape in an elongated shape, and are configured to be plane-symmetrical with respect to a plane of symmetry 481 (see FIG. 32) to the left and right in the longitudinal direction thereof. Further, the plane of symmetry 482 perpendicular to the longitudinal direction is also configured to be plane symmetric. Therefore, the pair of electric heater members 305 and 306 can be detachably mounted by the combination of the bolt 311 and the nut facing each other so as to surround the object to be heated.

FIG. 37 is a simplified plan view of the heating device 28 of another embodiment of the present invention. The heating device 28 is similar to the heating device 7 described above. The outer peripheral portion 310a of the electric heater member 305a is arranged in a plane with one end portion 308, and the other outer peripheral portion 310b is formed by being bent perpendicularly to the other end portion 309. The other electric heater member 306a has the same structure as the one electric heater member 305a. Although the terminal pieces 27a to 27d may be provided at the ends 308 and 309, they may be provided at the outer peripheral portions 310a and 310b, and this also applies to the above-described embodiments of FIGS. 32 to 36. Is. This heating device 28 can also achieve an excellent effect in the same manner as the above-mentioned heating device 7.

A cooling device 30 for cooling the corner material 25 from the die 4 is arranged between the extrusion molding die 4 and the sizing device 9.

FIG. 38 (1) is a diagram showing a configuration of a cooling device 30 by air injection. A large number of pipe members 107 are made of a synthetic resin material, and are airtightly connected to each other in order in the length direction so that the angle can be changed and the pipe members 107 can be removed. The nozzle member 108 is connected to the connected tip tube member 107. The pipe member 107 and the nozzle member 108 are held and connected to each other by the elastic force of the synthetic resin material.

FIG. 38 (2) is a front view of the nozzle member 108. Cooling air is injected from the flat nozzle hole 109. In another embodiment of the present invention, the nozzle member 112 shown in the following FIG. 38 (4) having the circular nozzle hole 110 of FIG. 38 (3) may be provided.

With reference to FIG. 38 (4), the pipe member 107 can also be branched and connected by the branch pipe member 111.

As shown in FIGS. 2 and 38
The corner material 25 having an inverted V-shape or an inverted U-shape from the extrusion molding die 4 is cooled by injecting air from above and below the corner material 25 with nozzle members 108 and 112. Lead to the sizing device 9.

The air from the nozzle blows off the volatile gas generated from the high-temperature corner material 25 from the mold 4 and scatters it. The volatile gas comes into contact with the resin inlet of the sizing device 9 to form a sticky, so-called lump, which enters the sizing 9 and is mixed in the molded product to deteriorate the quality. Air from the nozzle members 108, 112 solves this problem.

The direction, posture, flow rate, etc. of the air injection can be easily adjusted in order to smoothly introduce the corner material 25 of the mold 4 into the sizing device 9. Therefore, it is important that the nozzle members 108 and 112 can be easily adjusted by bending the pipe members 107 when the corner material 25 from the mold 4 is guided to the sizing device 9, especially at the initial stage of the start of the extrusion molding operation. is there. The number of air injection nozzles can be changed appropriately. Conventionally, a pair of linear copper pipes extending perpendicularly to the moving direction of the corner material 25 are arranged above and below the corner material 25, and each copper pipe is spaced apart in the elongated direction. Since a plurality of nozzle holes are formed and air is injected from each nozzle hole toward the molded product, it is impossible to achieve the above-mentioned advantages.

FIG. 39 is a left side view of the first pick-up device 44. FIG. 40 is a front view of the first pick-up device 44 as viewed from the upstream. FIG. 41 is an enlarged left side view showing a part of the first pick-up device 44. FIG. 42 is a simplified plan view showing a partial configuration of the first pick-up device 44.

In the first take-up device 44, one plate member 152 or 153 of the extruded corner material 25 formed by connecting a pair of plate members 152 and 153 at the bent portion 155 is paired with an endless annular take-up member 401 and 402. It is sandwiched between the opposite stretched portions 404 and 405 and picked up.

The corner member 25 formed by connecting a pair of plate members 152 and 153 having an inverted V-shape or an inverted U-shape with a cross section perpendicular to the axis opened downward at a bent portion 155 is suppressed from warping upward. A pair of upper and lower endless take-up members (for example, a caterpillar (registered)) formed by connecting a large number of rubber holding pieces 406 having a large frictional force to a chain 407 which is connected in an endless manner while being twisted around an axis. Of the pair of corner plate members 152, 153, by (trademark) 401, 402, etc., or by a pair of upper and lower endless belts 409, 410 (see FIGS. 43, 44 below, for example, a timing belt). One plate member 152 is sandwiched from above and below in a horizontal state, and the other plate member 153 is taken up in the moving direction in a posture of hanging outward. Upper and lower supports 485 and 486 are provided on the device main body 484 of the first take-up device 44. In the support body 485, the screw rod 488 having the vertical axis is rotationally driven by rotating the operation wheel 487.

The nut member 489 screwed into the screw rod 488 is fixed to the support 485, so that the support 485 can be adjusted up and down along the vertical guide member 490 of the device body 484. A pressing member 492 is attached to the support 485 via a spring 491. The pressing member 492 represses the underlaying portion 404 of the endless taking-up member 401 downward. The support body 486 has a support member 493 that supports the overlay portion 405 of the take-up member 402. The support 486 is fixed to the device main body 484.

The support 485 is provided with a drive sprocket wheel 495 and a driven sprocket wheel 496 around which the chain 407 of the take-up member 401 is wound. In the drive sprocket wheel 495, the power from the motor 498 is transmitted to the rotating shaft 499 having the vertical axis, and the spline 499a engraved on the rotating shaft 499 inserts the bevel gear 500a and meshes with the bevel gear 500a. The two bevel gears 500b are attached to the drive sprocket wheel 495. Similarly, with respect to the take-up member 402, the take-up member 402 is stretched over the drive sprocket wheel 502 and the driven sprocket wheel 503 with the same configuration as described above. In the drive sprocket wheel 502, the power from the bevel gear 504 fixed to the rotating shaft 499 is transmitted to another bevel gear 505, and the bevel gear 505 is fixed to the drive sprocket wheel 502.

Since one plate member 152 of the corner material 25 is picked up by surface contact in a state of being sandwiched vertically, the pulling force can be increased and damage to the corner material 25 can be prevented.

Even if the corner material 25 meanders at the initial stage of the molding operation, it can be picked up while maintaining the state in which one plate member 152 of the corner material 25 is sandwiched.

Even if the cross-sectional shapes of the pair of plate members 152 constituting the inverted V-shaped corner member 25 are different, they can be picked up.

FIG. 43 is a front view of the first pick-up device 46a according to another embodiment of the present invention. FIG. 44 is a rear view of the first pick-up device 46a as viewed from the upstream. The first pick-up device 46a shown in FIGS. 43 and 44 is similar to the first pick-up device 44 described above, and the corresponding parts are designated by the same reference numerals. The endless belts 409 and 410 are wound around the drive sprocket wheels 495 and 502 and the driven sprocket wheels 496 and 503 driven by the motors 498a and 498b, and are supported by the pressurizing support rollers 541 and 542, and the corner material 25. One plate member 152 is elastically pinched and picked up from above and below by a spring 543.

FIG. 45 is a cross-sectional view of the V-shaped corner material 48 of another embodiment of the present invention. The corner material 48 has a pair of plate members 152a and 153a connected by a bent portion 155a, and the lengths of these plate members 152a and 153a in the width direction are different from each other. The corner material 48 having such a structure can also be manufactured by the manufacturing apparatus for performing extrusion molding of the present invention.

FIG. 46 is a diagram showing a simplified configuration of the drilling device 49. FIG. 47 is a front perspective view showing the vicinity of the drilling means 50 and 51 upstream and downstream of the drilling device 49. In the drilling device 49, the power from the motor 129 provided in the drilling device main body 128 is transmitted from the belt winding drive pulley 130 to the crank mechanism 132 via the gear train 131. The crank mechanism 132 is provided with a flywheel 133. A drive member 137 is connected to the connecting rod 135 that is raised and lowered by the crank mechanism 132 via a connecting pin 136.

Power is transmitted from the common motor 129 to the drive unit 137 in the drilling means 50 and 51. It is driven all at once and intermittently by the driving means 147. A plurality of upstream (for example, 15) punches 138 and a plurality of downstream punches 139 project downward from the drive member 137. The upstream dies 141 and the downstream dies 142 through which the punches 138 and 139 are inserted to perforate the plate members 152 and 153 of the corner material 25 are supported by the springs 143 and 144, respectively. The upstream punch 138 and the die 141 form an upstream drilling means 50 to perform the first drilling. The downstream punch 139 and the die 142 form a downstream drilling means 51 to perform a second drilling.

(1) to (4) in FIG. 47 are cross-sectional views seen from the downstream along the moving path from the upstream to the downstream of the V-shaped corner material 25, as described above in relation to FIG. Yes, reference numerals a and b indicate each free end portion of the corner material 25. Between these upstream and downstream drilling means 145 and 146, a twisting member 148 that twists the corner member 25 by 90 ° clockwise when viewed from the upstream is arranged around the axis thereof.

Therefore, the corner material 25 supplied from the first pick-up device 45 in the posture of (1) in FIG. 47 is twisted during its movement, and one plate is in the posture of (2) in FIG. 47. The member 152 is perforated by the perforating means 50, and then the corner material 25 is twisted by the twisting member 148 by 90 ° while being moved downstream, and the other plate is twisted by the twisting member 148 in the posture of (3) in FIG. The member 153 is perforated and perforated by the means 51. The twisting member 148 comes into contact with the plate member 152 and / or 153 and twists while the corner member 25 is moving. The corner material 25 from the drilling device 49 is twisted back into a convex position on (4) in FIG. 47 and guided to the double-sided tape sticking device 53.

FIG. 48 is a perspective view showing a perforated state of the V-shaped corner material 25. A plurality of holes 149 are formed in one plate member 152 for each group 154 by one drilling operation by the upstream drilling means 50. Similarly, the downstream drilling means 51 drills a plurality of holes 150 in the other plate member 153 for each group 154.

The number, size, shape and arrangement of the holes 149 and 150 drilled by the drilling means 50 and 51 are the same, and the time interval of each driving by the driving means 147 is the corner material 25 to be drilled. Corresponding to the moving speed, the holes 149 and 150 drilled in the corner material 25 are selected so as to have a uniform arrangement distribution over the entire length of the corner material 25 in the longitudinal direction, regardless of the group 154.

That is, the corner material 25 is twisted around the axis by the twisting member 148, and in a state where one of the plate members 152 is horizontal, the upstream drilling means 50 moves up and down each time in the moving direction. Drill holes in the first plurality (eg 5) rows and
With the other plate member 153 horizontal by twisting by a predetermined angle (for example, 90 ° as described above), the first vertical movement is performed in the moving direction by the downstream drilling means 51. Drill multiple (eg 5) rows of holes and
The upstream drilling means 50 and the downstream drilling means 51 are simultaneously driven up and down by a common crank mechanism 132. The holes 149 and 150 are drilled by the upstream drilling means 50 and the downstream drilling means 51 in a second plurality (for example, 3) rows in the width direction of the corner material 25 for each vertical movement.

Compared with the configuration in which the pair of plate members 152 and 153 of the V-shaped corner material 25 are individually drilled by a total of two drilling machines, the size is simplified and reduced.

Downstream of the first take-up device 44, a large tension does not act on the corner material 25. Tension acts on the corner material 25 upstream of the first take-up device 44, but the tension does not act downstream, or even if tension acts, it is a very small value. A double-sided tape is attached to the corner material 25 in a state where there is almost no tension. In this state, since the double-sided tape 54 is attached by the double-sided tape attaching device 53, the formation of the wrinkles 164 shown in FIG. 49 on the release paper 55 is suppressed. Assuming that the double-sided tape attaching device 53 is arranged upstream of the first picking device 44, many wrinkles 164 in FIG. 49 are formed on the release paper 55, resulting in deterioration of the quality of the corner material 25. It becomes. The present invention solves this problem.

FIG. 50 is a simplified perspective view showing the second take-up device 56. The second pick-up device 56 picks up one plate member 152 and the other plate member 153 of the corner material 25 by means of rollers 166 and 167 made of a pair of silicon rubber or the like. These rollers 166 and 167 are rotationally driven by motors 169 and 170.

The corner material 25 is picked up by the first pick-up device 44, and then the corner material 25 is picked up.
The second take-up device 56 is arranged further downstream than the double-sided tape affixing device 53 installed downstream of the perforation device 49.

When the two plate members 152 and 153 of the inverted V-shaped corner material 25 to which the double-sided tape 54 is attached are perforated, the movement of the corner material 25 is stopped for a short time, and the slack of the corner material 25 occurs at this time. Is eliminated by the second pick-up device 56. The second pick-up device 56 additionally picks up the corner material 25 as much as it moves upstream of the drilling device 49 at the time of this stop.

Since the slack of the corner material 25 is removed by the second pick-up device 56, the first plurality (for example, 5) of each vertical movement to be drilled by the upstream drilling means 50 and the downstream drilling means 51 in the drilling device 49. ) The spacing between the holes in the row and the holes in the next first plurality (eg 5) rows can be set accurately.

The double-sided tapes 54 and 54a attached to the corner material 25 increase the frictional force due to contact with other members while moving downstream of the corner material 25, and the second take-up device 56 increases the frictional force due to the contact with the corner material 25. 25 is smoothly guided downstream regardless of the increase in frictional force.

FIG. 51 is a side view of the upstream mold plate 62 in the extrusion molding die 60 of the U-shaped corner material manufacturing apparatus 61 according to another embodiment of the present invention. FIG. 52 is a rear view of the upstream mold plate 62 as viewed from the upstream. FIG. 53 is a front view of the upstream mold plate 62 as viewed from the downstream. FIG. 54 is a front view of the downstream mold plate 63 as viewed from the downstream. FIG. 55 is a perspective view of the downstream mold plate 63 as viewed from the upstream. FIG. 56 is a perspective view showing the first mold member 64 and the second mold member 65 constituting the downstream mold plate 63. The U-shaped corner material manufacturing apparatus 61 is partially similar to the V-shaped corner material manufacturing apparatus 1 described above, and the same reference numerals may be used for the corresponding portions.

FIG. 57 is a cross-sectional view taken along the axis of the U-shaped corner material 66 extruded according to the configurations shown in FIGS. 51 to 56.

In order to extrude a U-shaped corner material 66 having a pair of plate members 331 and 332 and a bent portion having a radius larger than a curved V shape connecting these plate members 331 and 332, the mold 60 is used. An inlet mold plate 62 connected to the extruder 2 by a connecting device 5 and
It has an outlet mold plate 63 attached to the inlet mold plate 62, and has an outlet mold plate 63.
The output mold plate 63 is
A first mold member 64 having a substantially L-shaped overall shape having a flow surface 336 forming an inner surface of each pair of plate members 331 and 332 and a bent portion 333 having a radius larger than the V-shape.
The second mold member 65 having the flow surface 337 facing the flow surface 336 of the first mold member 64
Removably fixed by bolt 338 (FIG. 56). Other configurations are similar to the above-mentioned first to third mold members 21 to 23.

In the extrusion molding die 60 having flow holes 416 and 417 from which the molded product is guided.
A datum reference surface 287 corresponding to the angular position of the flow holes 416 and 417 around the axis parallel to the resin moving direction is formed on the upper portion of the inlet mold plate 62 of the mold 60.

The flow holes 416 and 417 are configured to be plane-symmetric with respect to a plane of symmetry 289 perpendicular to the resin moving direction. The reference surface 287 for the leveling device is in a state in which the outlet cross-sectional shape in the virtual plane perpendicular to the pipe shaft 238b of the second pipe 12 in the downstream flow hole 417 is in a predetermined posture around the pipe shaft 238b of the second pipe 12. That is, the plane of symmetry 289 is horizontal in a vertical position.

For repair of the flow surface 336 and 337 when worn, only the contact surfaces 414 and 415 of the first mold member 64 with the second mold member 65 need to be ground. Alternatively, only the contact surfaces 414 and 415 of the second mold member 65 with the first mold member 64 need to be ground.

Of the first and second mold members 64 and 65, only one of the first and second mold members 64 and 65, which is severely worn and damaged, needs to be replaced, which is economical.

As shown in FIGS. 54 to 56, an extrusion die having a plurality of divided mold members in a virtual plane perpendicular to the resin moving direction, and having a thickness perpendicular to the resin moving direction of the flow holes. It is an extrusion molding die characterized in that the intermediate position of the above is a divided surface parallel to the resin moving direction.

The contact surfaces 421 to 415 of the plurality of mold members 64 and 65 are in contact with each other to form a divided surface of the extrusion molding mold, and in FIG. 54, the flow holes forming the corner material plate members. The substantially central position in the thickness direction is set as the dividing surface, and for example, ΔL1≈ΔL2. This prevents burrs from being generated from the free end portions 279 at both ends in the width direction of each plate member of the corner material such as V-shaped, U-shaped, and flat-shaped. The V-shaped and U-shaped corner materials are made of hard resin.
Part 412, 414 (FIG. 56) of these split surfaces 412, 414; 413, 415 (FIG. 56) extend along the guide cutouts 284, 285, as clearly shown in FIG. 56 and the like.

Other configurations and operations of the U-shaped corner material manufacturing apparatus 61 are the same as or similar to those of the V-shaped corner material manufacturing apparatus 1 described above.

The angle formed by the pair of plate members 152, 153; 331 and 332 at the naturally bent portions 155 and 333 of the V-shaped or U-shaped corner members 25 and 66 is, for example, 90 ° depending on the molds 4 and 60 (FIG. 24). In the final product completed by the sizing dies 34,674 after being formed at the reference mark θ5), the value for the outside corner is less than 90 °, which is close to 90 °, for example, 88 to 89 °. For the inside corner, the value may be more than 90 °, which is close to 90 °, and may be, for example, 91 to 92 °.

FIG. 59 (1) is a system diagram showing the overall configuration of the flat corner material manufacturing apparatus 72 according to another embodiment of the present invention. FIG. 59 (2) is a vertical cross-sectional view of the mold 73 along the flow direction of the resin. The flat corner material manufacturing apparatus 72 is partially similar to the V-shaped corner material manufacturing apparatus 1 and the U-shaped corner material manufacturing apparatus 61 described above, and the same reference numerals may be used for the corresponding portions.

The hard resin raw material 183 of the flat corner material 80 is melted by the hard resin extruder 184 and supplied from the connecting device 185 to the mold 73. The soft resin raw material 187 is supplied from the soft resin extruder 85 to the mold 73 via the adapter 188 and the member of the spherical pipe joint 87. The flat corner material 80 from the mold 73 is cooled by the cooling device 189 that injects air, then further cooled and flattened by the cooling flattening device 91, guided by the rollers 191 and guided by the take-up device 192. The double-sided tapes 54 and 54a are attached to both ends in the width direction by the double-sided tape attaching device 193.

After that, the punching device 194 punches a pair of left and right plate members made of a hard resin material connected by a bent portion 423 made of a soft resin of a flat corner material 80, and the flat corner material 80 is wound through a cutting means 195 for performing necessary cutting. Taken up by machine 196.

The recess 722 of FIG. 59 (2) is formed by a portion of a sphere, but in another embodiment of the present invention, it is defined by an arcuate surface 705 and a plane 706, similar to the embodiments described above. May be good.

By the mold 73, the bent portion 423 of the soft resin is overlapped and integrated between the pair of plate members 424 and 425 of the hard resin.
Next, air is injected in the cooling device 189, and the air is injected.
After that, it is sandwiched, cooled, and flattened by the cooling flattening device 91. In the flat corner material 80, the soft resin layer for the bent portion 423 is partially laminated on the hard plate members 424 and 425 over the gaps between the pair of hard resin plate members 424 and 425.

The adhesive strength between the pair of hard resin plate members 424 and 425 and the bent portion 423 of the soft resin layer is improved, and undesired division at the bent portion 423 is prevented. The soft resin is made of a material having a high adhesive strength with the hard resin during extrusion molding. The flat corner material 80 is manufactured in a flat state in the width direction, and is wound up and stored, which is convenient for storage, transportation, and the like. When the flat corner material 80 is used for outside corners, inside corners, etc. of a building, it is bent at a bent portion 423 so that the plate members 424 and 425 are in a state of, for example, 90 °.

The flat corner material 80 supplied from the mold 73 is cooled by air by the cooling device 189 that injects air, and further cooled by heat conduction in contact with the rollers 215 to 217 and the like by the cooling flattening device 91. Since it is sandwiched and pressure is applied to flatten it, its configuration can be simplified.

FIG. 60 is an exploded perspective view of the first mold plate 74 and the second mold plate 76 constituting the mold 73 as viewed from the downstream side, and FIG. 61 is a perspective view seen from the upstream side of the third mold plate 76. It is a figure.

FIG. 62 is a front view of the first mold plate 74 as viewed from the downstream. FIG. 63 is a rear view of the first mold plate 74 as viewed from the upstream. FIG. 64 is a cross-sectional view of the first mold plate 74.

The mold 73
It has upstream and downstream second and third mold plates 75, 76 divided along the resin moving direction.

The upstream second mold plate 75 is
It is formed with a gap in the width direction and has individual flow holes 205 and 206 for hard resin for plate members 424 and 425.
The downstream third mold plate 76 is
A common flow hole 207 for guiding a pair of plate members 424 and 425 from the individual flow holes 205 and 206 for hard resin,
The soft resin for the bent portion 423 is guided to the common flow hole 207 and partially overlapped and laminated and fixed on one surface of the plate members 424 and 425 over the gap, or a pair of plate members 424. It has a soft resin supply path 213 for fixing the end faces of 425 to each other.

The third mold plate 76 has a common flow hole 207, and the common flow hole 207 has a common flow hole 207.
A pair of hard resins formed with a gap in the width direction from the individual flow holes 205 and 206 of the second mold plate 75, and
Through this gap, the supply recess 212 formed in the upper mold member 81 of the third mold plate 76 is partially overlapped and laminated on one surface of the plate members 424 and 425, or a pair is fixed. To guide the soft resin that fixes the end faces of the plate members 424 and 425 of the above,
The length of the common flow hole 207 in the resin movement direction is such that during the movement of the hard resin and the soft resin, the pair of hard resin plate members 424 and 425 are undesirably displaced in the width direction in the direction in which they are close to each other. Therefore, the width of the bent portion 423 formed by the soft resin is selected so as not to be undesirably reduced.

A recess 427 recessed on the protruding side is formed in the common flow hole 207 of the third mold plate 76 and its peripheral portion.
The outer peripheral portion 428 of the recess 427 is formed thick.

The mold 73 is also removably assembled by bolts in the same manner as the molds 4 and 60 described above. The mold 73 is also heated by the heating device 7 described above in the same manner.

As shown in FIG. 60
An extrusion mold having a plurality of divided mold members in a virtual plane perpendicular to the resin moving direction.
This is an extrusion molding die characterized in that an intermediate position of a thickness of a flow hole perpendicular to the resin moving direction is a divided surface parallel to the resin moving direction.

In the extrusion molding die 73, the upper mold members 78 and 81 of the first mold plate 74 and the second and third mold plates 75 and 76 have upper side portions, reference surfaces for leveling machines 288a to 288a to c. (Overall represented by 288) is formed. The datum reference planes 288a to 288 are planes facing upward. The reference surface 288 for the leveling device has the outlet cross-sectional shape in the virtual plane perpendicular to the pipe shaft 238b of the second pipe 12 in the downstream flow hole 207 in a predetermined horizontal posture around the pipe shaft 238b of the second pipe 12. In the state, it is horizontal.

The contact surfaces 463 to 468 of the plurality of mold members 78 and 79 are in contact with each other to form a divided surface of the extrusion molding die, and in FIGS. 65 and 66, each plate member of the corner material is formed. The substantially central position in the thickness direction of the flow hole is set as the dividing surface, and for example, ΔL1≈ΔL2. This prevents burrs from being generated from the free end portions 279 at both ends in the width direction of each plate member of the corner material such as V-shaped, U-shaped, and flat-shaped.

FIG. 67 is a perspective view showing the soft resin extruder 85. FIG. 68 shows that the soft resin is supplied from the adapter 188 of the soft resin extruder 85 to the top of the third mold plate 76 of the mold 73 via the connecting device 185a, and the soft resin is supplied to the supply recess 212 via the first pipe portion 88. It is sectional drawing which shows the spherical pipe joint 87 for guiding. FIG. 69 is a plan view showing the second pipe portion 89 of the spherical pipe joint 87. FIG. 70 is a bottom view showing a bag nut 90 of a spherical pipe joint 87. The connecting device 185a has the same configuration as the connecting device 5 described above.

The spherical pipe joint 87
(A) The outer surface has a first end portion 431 of a spherical surface and a first tube portion 88 connected to the first end portion 431, and the outer diameter of the spherical surface of the first end portion 431 is the first tube portion 88. The first connecting pipe 432, which is larger than the outer diameter,
(B) A second connecting pipe 435 having a second end portion 434 having a male screw and a second pipe portion 89 connected to the second end portion 434.
(C) An inner surface surrounding the first end portion 431 of the spherical surface having an insertion hole 437 having an inner diameter less than the outer diameter of the spherical surface of the first end portion 431 of the first connecting pipe 432 through which the first pipe portion 88 is inserted. Is a spherical surface and has a cap nut 90 having a female screw that is removably screwed to the screw of the second connecting pipe 435.

Even if the axes of the first and second connecting pipes 432 and 435 are inclined in one plane, a fluid such as a soft resin can be constantly supplied.

The male screw 561 engraved at the end of the first pipe portion 88 is formed on the upper portion of the upper mold member 81 and is therefore removably screwed into the screw hole 524. The soft resin is co-extruded into the supply recess 212 via the first pipe portion 88.

FIG. 71 is a simplified front view showing the overall configuration of the cooling flattening device 91. FIG. 72 is a simplified perspective view showing the overall configuration of the cooling flattening device 91. FIG. 73 is a side view of a part of the cooling flattening device 91 as viewed from the right side of FIG. 71, which is upstream. The flat corner material 80 is formed by connecting bent portions 423 with a soft resin over a gap between a pair of hard plate members 424 and 425. The corner material 80 supplied from the extrusion mold 73 is first cooled by injecting air from above and below in the cooling device 189.

Next, in the cooling flattening device 91, the cooling and flattening device 91 is wound around a plurality of (for example, 3) rollers 215, 216, and 217 arranged above and below the guide member 513 to be cooled and flattened. The rollers 215, 216, and 217 cool the flat corner material 80 and apply pressure to sandwich and flatten the flat corner material 80. These rollers 215, 216, and 217 may be made of a metal having good thermal conductivity for cooling, for example, aluminum, or may be made of rubber such as silicon rubber or other material. The flat corner material 80 is guided to the subsequent pick-up device 192 by the guide roller 191.

Guide rails 447a and 447b (generally indicated by reference numerals 447) are provided on the apparatus main body 441 so as to extend vertically. The first to third rollers 215, 216, and 217 have horizontal and parallel rotation axes, and the rotation axes are sequentially arranged from top to bottom, and the flat corner material 80 from the extrusion die 73 is formed. , The first and third rollers 215, 216, and 217 are wound around the first and second rollers 215 and 216 as shown in FIGS. 71 and 72, for example. The upper and lower supports 527 and 528 rotatably support the first and third rollers 215 and 217, respectively.

FIG. 74 is a horizontal sectional view showing the upper support 527 and its vicinity. The guide rail 447a guides the upper support 527 in a vertically displaceable manner via a linear slide bearing 533 provided on the support 527. Similarly, the guide rail 447b guides the lower support 528 in an ascending / descending displacement.

The motor 442 is attached to the apparatus main body 441 and rotationally drives the second roller 216. The rotation axes of these rollers 215, 216, 217 are horizontal, in the vertical virtual plane, and parallel. In another embodiment, of the first to third rollers 215, 216, 217, the first or third rollers 215, 217, or a plurality of them, may be driven by a motor.

FIG. 75 is a vertical cross-sectional view of a part of the upper part of the first pressurizing means 531. The first pressurizing means 531 is provided on the apparatus main body 441 and has a first screw rod 445 extending vertically. The first screw rod 445 is rotatably supported by the thrust bearing 535 of the mounting member 534 fixed to the apparatus main body 441. The first screw rod 445 is manually rotated around the axis of the first screw rod 445 by a rotation operation handle 443, the above support 527 is moved up and down by screw drive, and the corner material 80 is first and second. Pressurize and release the pressurization between the two rollers 215 and 216.

The second pressurizing means 532 is also provided in the apparatus main body 441 and has a second screw rod 446 extending vertically, and the second screw rod 446 is rotated around the axis of the second screw rod 446. The lower support 528 is moved up and down by screw drive, and the corner material 80 is pressed and released between the second and third rollers 216 and 217 by a manual rotation operation.

The flat corner material 80 from the extrusion die 73 is wound around one or more of the first to third rollers 215, 216, and 217 in the circumferential direction, for example, about half a circumference, and the first pressurizing means 531 By manual operation, the upper support 527 that rotatably supports the first roller 215 is guided along the rail 447a and pressurized between the first and second rollers 215 and 216 to adjust the pressing force. It enables setting and releases the pressurization so that it can be taken out from between the first and second rollers 215 and 216. Similarly, by manually operating the second pressurizing means 532, the lower support 528 that rotatably supports the third roller 217 is guided along the rail 447b between the second and third rollers 216 and 217. The pressure can be adjusted and set, and the pressure can be released and taken out from between the second and third rollers 216 and 217.

The pressing force between the first and second rollers 215 and 216 and the pressing force between the second and third rollers 216 and 217 are independently and individually adjusted by the first and second pressurizing means 531 and 532. Since it can be set, the pressing force of the flat corner material 80 may be changed in the order from upstream to downstream in the wound moving direction, for example, from a small value to a large value, or vice versa, sequentially. It may be adjusted and set.

The first to third rollers 215, 216, and 217 have a circular cross section perpendicular to the axis and have a regular cylindrical shape or a straight columnar shape having a uniform diameter in the axial direction. These configurations may be collectively referred to as a straight column. The diameters of the first to third rollers 215, 216, and 217 may be the same, but may be different from each other. These rollers 215, 216, and 217 may be provided not only in three but also in two or more. In other embodiments of the embodiment, a plurality of rollers of other shapes, for example truncated truncated cones, may be combined and used.

According to the cooling flattening device 91, the flat corner material 80 can be cooled and flattened at the same time with a simple configuration. Further, (1) the production speed, that is, the line speed can be improved, (2) the sizing device 9 having the above-mentioned complicated configuration for V-shaped or U-shaped corner materials and the like becomes unnecessary, and (3). ) The flat corner material does not have to be caught in the cooling flow hole 33 (FIG. 2) in the sizing device 9 and interrupt the operation while moving.

In another embodiment of the present invention, a single screw rod extending vertically is provided on the apparatus main body 441 so that it can be manually rotated around the axis of the screw rod, and the screw rod is screwed in the direction of the screw. The upper and lower supports 527 and 528 that fit together form the opposite. Thereby, the screw rod is manually rotated in one direction and the other direction in the opposite direction to screw drive the upper and lower supports 527 and 528, and the first and third rollers 215 and 217 are in close proximity to each other. It moves up and down in the direction and in the direction of separation from each other, and pressurizes and releases the flat corner material 80 between the first and second rollers 215 and 216, and between the second and third rollers 216 and 217.

FIG. 76 is a diagram showing the configuration of the guide member 513. FIG. 76 (1) is a vertical cross-sectional view of the guide member 513, and FIGS. 76 (2) and (3) are perspective views showing an enlarged relationship between the guide member 513 and the flat corner material 80. The guide member 513 is a roller in which the flat corner material 80 from the extrusion mold 73 is first wound among the extrusion mold 73 and the first to third rollers 215, 216, 217, for example, FIGS. 71 and 71. In 72, it is interposed between 216.

The guide member 513 has a flat surface 535 facing upward and a guide surface 514 smoothly extending downstream from the flat surface 535. The guide surface 514 forms an arc having a small radius of curvature with a slight roundness between two tangents forming an angle θ6 in the vertical virtual surface in the paper surface of FIG. 76 along the moving direction on the paper surface of FIG. 76. It is formed as a curved surface that forms part of the moved rectangular surface. The angle θ6 may be an angle larger than 90 °, which is close to 90 °, and may be, for example, 90 ° to 110 °. The guide member 513 is provided with a pair of guide protrusions 538 that prevent the corner material 80 from being displaced in the width direction and guide the corner member 80 so as to travel straight.

Tension is applied to the corner material 80 by the cooling and flattening device 91, and the surface of the corner material 80 on the side where the bent portions 423 of the plate members 424 and 425 are not laminated is on the lower surface in FIG. 76 over the entire width. It moves from the flat surface 535 while contacting the guide surface 514. Therefore, the corner material 80 supplied from the extrusion mold 73 is distorted in the width direction, and even if it has wrinkles, it is corrected to a substantially flat shape. Therefore, the corner material 80 is surely flattened by the pressurization of the first to third rollers 215, 216, and 217 in the subsequent cooling and flattening device 91, and the quality is improved.

With reference to FIGS. 71 and 72 again, the guide roller 191 is a straight columnar, has a rotation axis that is horizontal and parallel to the rotation axes of the first to third rollers 215, 216, and 217, and the first. -It is provided in the apparatus main body 441 downstream of the third rollers 215, 216, and 217. The guide roller support 448 rotatably supports the guide roller 191.

The guide roller rail 451 is provided on the apparatus main body 441 so as to extend vertically, and guides the guide roller support 448 in a vertically displaceable manner.

The elevating means 452 is provided on the apparatus main body 441 and has a third screw rod 450 extending vertically. The third screw rod 450 is manually rotated around the axis of the third screw rod 450 by the rotation operation handle 449, and the guide roller support 448 is moved up and down by screw drive.

Therefore, the flat corner material 80, which is pressurized by the first to third rollers 215, 216, and 217, cooled and flattened, comes into contact with the outer peripheral surface of the guide roller 191 to change the moving direction, and subsequently. Is supplied to the device, for example, to the subsequent pick-up device 192, and tension is applied to pick it up. By manually rotating the third screw rod 450, the elevating means 452 displaces the guide roller support 448 screwed onto the third screw rod 450 up and down, and a subsequent device, for example, a subsequent pick-up device 192. It facilitates adjusting and setting the supply of the flat corner material 80 to the optimum posture. The guide roller 191 may also be driven by a motor downstream of the rollers 215, 216, 217.

The rollers 215, 216, and 217 have horizontal rotation axes, of which the central roller 216 in the vertical direction is attached to the apparatus main body 441 and driven by the motor 442. The remaining upper and lower rollers 215 and 217 rotate in a driven manner. The rollers 215 and 217 are displaced up and down along the guide rail 447 by the screw drive of the screw rods 445 and 446 rotated by the operation handles 443 and 444, and the pressure for sandwiching the corner material 80 with the central roller 216 is applied. It will be adjusted.

The resin raw material to be molded may be vinyl chloride resin, polyvinyl chloride, polystyrene, ABS resin, etc., and further, calcium carbonate, a plasticizer, etc. are mixed to reduce the deflection of the corner material and form it thin. To be able to. As a soft resin for a bent portion having good adhesion to a plate member such as a hard ABS resin of a flat corner material, a styrene-based soft elastomer "Leostoma (trade name manufactured by Riken Technos)" may be used, and an ester-based soft resin may be used. , Urethane-based soft elastomer, etc. may be used.

The present invention is capable of the following embodiments. The same reference numerals are given to the parts corresponding to the above-described embodiments.

(1) As shown in FIGS. 4 to 15,
For example, the first pipe that guides the resin from the extruder,
For example, a pipe connecting device that connects a second pipe that supplies resin to a mold.
A first outward flange is provided at the end of the first pipe,
The first outward flange is formed with a truncated cone-shaped first inclined surface that is radially inward toward the inside of the pipe shaft 238 of the first pipe (to the right in FIG. 5).
A second outward flange is provided at the end of the second pipe,
The second outward flange is formed with a truncated cone-shaped second inclined surface that is radially inward toward the inside of the pipe shaft 238 of the second pipe (to the left in FIG. 6).
A cover body surrounding the first and second outward flanges is provided.
This cover body has a pair of cover body portions formed in a half shape.
The first and second inclined surfaces are in contact with the inner surface of each cover body portion.
A pipe connecting device for tightening cover body portions in a direction close to each other by a tightening means such as a bolt.

By enabling mutual angular displacement around each axis of the first pipe and the second pipe, that is, around the pipe shaft 238, it is possible to adjust the angular displacement around the pipe shaft 238 of a mold or the like.

The wedge action is exhibited by the first inclined surface and the second inclined surface coming into contact with the inner surface of each cover body portion and the cover body portions approaching each other in the pipe axis 238 direction. Therefore, the first outward flange of the first pipe and the second outward flange of the second pipe come into contact with each other with a large force, and therefore the fluid such as molten resin is transported without a sealing material such as packing. The first pipe and the second pipe can be airtightly connected without any leakage.

The pair of cover body parts can be removed and attached by operating a tightening means such as a bolt, whereby the mold or the like can be replaced with a simple operation.

(1a) As shown in FIGS. 31, 57 and 66.
A pair of plate members 152, 153 (FIG. 31); 331, 332 (FIG. 57), 424, 425 (FIG. 66) connected at a bent portion 155; 333; 423. In the corner material extrusion molding devices 1, 61, 72 for extruding the corner materials 25, 66, 80, etc.
(A) An extruder 2 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a synthetic resin melted from the first pipe 11
(B) Extrusion molding dies 4, 60, 73.
(B1) It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is on a horizontal straight line common to the pipe shaft 238a of the first pipe 11.
(B2) Flow holes 277, 278; 416, 417; 204 to 207 through which the resin from the second pipe 12 is guided are formed.
(B3) Reference planes for leveling devices 287 (FIGS. 16 and 52) and 288 (FIG. 60) formed on the extrusion molding dies 4, 60 and 73 on a flat surface facing upward.
The outlet cross-sectional shape in the virtual plane perpendicular to the pipe shaft 238b of the second pipe 12 in the downstream flow holes 277, 417, 207 is horizontal in a predetermined posture around the pipe shaft 238b of the second pipe 12. Extrusion molding dies 4, 60, 73 having a reference surface 287, 288 for a certain leveling instrument.
(C) Connecting devices 5 and 13 for connecting the first pipe 11 and the second pipe 12.
(C1) A first outward flange 221 provided at the end of the first pipe 11.
A truncated cone-shaped first inclined surface 222 that is radially inward as it is directed inward of the pipe shaft 238a of the first pipe 11.
A first outward flange 221 having a first sealing contact surface 239 facing the outside of the pipe shaft 238a of the first pipe 11 over the entire circumference of the first outward flange 221 in the circumferential direction.
A second outward flange 223 provided at the end of the second pipe 12 so as to face the first outward flange 221.
A truncated cone-shaped second inclined surface 224 that goes inward in the radial direction toward the inside of the pipe shaft 238b of the second pipe 12.
With the second sealing contact surface 241 capable of facing the outside of the pipe shaft 238b of the second pipe 12 and abutting the first sealing contact surface 239 over the entire circumference of the second outward flange 223 in the circumferential direction. Second outward flange 223 with
(C3) A cover body 226 surrounding the first and second outward flanges 221 and 223.
It has a pair of cover body portions 227 and 228 formed in half.
The inner surfaces of the cover body portions 227 and 228 are contacted with the cover body 226 to which the first and second inclined surfaces 222 and 224 are in contact with each other.
(C4) Tightening means 225
A connecting device having a tightening means 225 that tightens the cover body portions 227 and 228 in a direction close to each other so as to intersect the straight lines so that the first and second sealing contact surfaces 239 and 241 come into contact with each other to achieve the sealing. An extrusion molding apparatus for a corner material, which comprises 5 and 13.

The connecting devices 5 and 13 enable mutual angular displacement around each axis of the first pipe 11 and the second pipe 12, that is, the pipe shaft 238, and the pipe of the second pipe 12 such as the molds 4, 60, 73. Since the posture around the shaft 238b, that is, the angular displacement can be adjusted, a rotation angle adjusting structure for setting the angular displacement position around the pipe shaft 238b in the resin moving direction of the molds 4, 60, and 73 is realized.

The reference plane 287 (FIG. 16, 52) and 288 (FIG. 60) for the leveling device has a corner material 25 such as a V shape or a U shape whose overall outer shape is (1) a rectangular parallelepiped such as a rectangular parallelepiped or a cube. It can be obtained by forming the corners of the 66 molds 4 and 60 into a flat surface, or (2) by one surface along the resin moving direction in the corner material 71 mold 73 such as a rectangular parallelepiped. it can. A spirit level is placed on the reference surface 287 (FIG. 16, 52) and 288 (FIG. 60) for the spirit level, and in combination with the use of the connecting devices 5 and 13, the circumference of the pipe shaft 238b of the second pipe 12 The posture adjustment work of the molds 4, 60, and 73 can be easily performed.

For example, by supplying the corner materials 25 and 66 such as V-shaped or U-shaped from the molds 4 and 60 in an inverted V-shaped or inverted U-shaped posture, water droplets, foreign substances and the like can be generated as described later. Easy to fall and does not adhere. Further, by supplying the corner material 80 such as a flat shape from the mold 73 in a horizontal posture in a virtual plane perpendicular to the pipe shaft 238b of the second pipe 12, a subsequent device, for example, a cooling flattening device 91, is used. The processing is reliable.

Further, the connecting devices 5 and 13 allow the molds 4, 60 and 73 to be attached / detached / replaced and maintained by a simple operation. Therefore, in manufacturing corner materials 25, 66, 80 such as V-shaped, U-shaped or flat-shaped, productivity can be increased.

In the connecting devices 5 and 13, the first inclined surface 222 and the second inclined surface 224 come into contact with the inner surfaces of the cover body portions 227 and 228, and the cover body portions 227 and 228 are close to each other in the pipe axis 238 direction. As a result, the wedge action is exhibited. Therefore, the contact surface 239 for the first seal on the first outward flange 221 of the first pipe 11 and the contact surface 241 for the second seal on the second outward flange 223 of the second pipe 12 are in the direction of the pipe shaft 238. Contact each other with great force. Therefore, the first pipe 11 and the second pipe 12 can be airtightly connected without leakage of the fluid such as the molten resin to be transported without a sealing material such as packing.

(1b) A pair of plate members 152, 153 (FIG. 31); 331, 332 (FIG. 57) are connected by a bent portion 155; 333, and V-shaped or U-shaped corner members 25, 66 having a bent axially perpendicular cross section are extruded. In the corner material extrusion molding devices 1 and 61
(A) An extruder 2 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a synthetic resin melted from the first pipe 11
(B) Extrusion molding dies 4 and 60.
(B1) It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is on a common straight line with the pipe shaft 238a of the first pipe 11.
(B2) The resin from the second pipe 12 is guided, and flow holes 277, 278; 416, 417 arranged in an inverted V-shaped or inverted U-shaped shape that are convex upward are formed.
(B3) A bisector formed at the upper part of the extrusion molds 4 and 60 and having a bending portion 155; 333 at an angle θ5 on a virtual surface perpendicular to the resin moving direction of the flow holes 277, 278; 416 and 417. Extrusion dies 4, 60 having a leveling reference surface 287 perpendicular to
(C) Connecting devices 5 and 13 for connecting the first pipe 11 and the second pipe 12.
A first outward flange 221 is provided at the end of the first pipe 11.
The first outward flange 221 is formed with a truncated cone-shaped first inclined surface 222 that is radially inward toward the inward side of the pipe shaft 238a of the first pipe 11.
A second outward flange 223 facing the first outward flange 221 is provided at the end of the second pipe 12.
The second outward flange 223 is formed with a truncated cone-shaped second inclined surface 224 that is radially inward toward the inward side of the pipe shaft 238b of the second pipe 12.
The first outward flange 221 is also formed with a first sealing contact surface 239 facing the second outward flange 223 over the entire circumference in the circumferential direction.
The second outward flange 223 is also formed with a second seal contact surface 241 capable of facing the first outward flange 221 and abutting the first seal contact surface 239 over the entire circumference in the circumferential direction.
Cover bodies 226 surrounding the first and second outward flanges 221 and 223 are provided.
The cover body 226 has a pair of cover body portions 227 and 228 formed in a half shape.
The first and second inclined surfaces 222 and 224 are in contact with the inner surfaces of the cover body portions 227 and 228.
The cover body portions 227 and 228 are tightened by the tightening means 225 in the direction in which they intersect each other in a straight line, and the first and second sealing contact surfaces 239 and 241 come into contact with each other to achieve sealing. A V-shaped or U-shaped corner material extrusion molding device, which comprises the connecting devices 5 and 13.

Since the corner materials 25 and 66 are formed and supplied from the molds 4 and 60 in an inverted V-shape or an inverted U-shape, water droplets, foreign substances, etc. slide and fall from the surfaces of the corner materials 25 and 66. Easy to do and does not adhere. Therefore, undesired patterns, stripes, and other stain marks are not generated on the corner materials 25 and 66, and the quality can be improved. Further, even in a configuration in which the corner materials 25 and 66 are cooled by injecting water or passing through the water tank downstream of the subsequent sizing device 9, the water easily falls and does not adhere to the corner material V. The quality of the corner materials 25 and 66 such as the shape or the U shape can be improved.

(1c) The inner surfaces of the cover body portions 227 and 228 are formed in a truncated cone shape in surface contact with the first and second inclined surfaces 222 and 224.

Therefore, in the virtual plane including the pipe shaft 238, the apex angles formed by the first and second inclined surfaces 222 and 224 and the apex angles formed by the inner surfaces of the cover body portions 227 and 228 have substantially the same value. .. By this surface contact, the strength of the structure can be increased, and a large force due to the wedge action can be generated to improve the airtightness.

(1d) The tightening means 225
Has bolts (105 or 106) and
At the circumferential end (101 or 102) of one of the cover body portions, an insertion hole (116 or 117) through which the shaft portion (105b or 106b) of the bolt (105 or 106) is inserted, and a bolt (105 or 106) A receiving seat (118 or 119) to which the head (105a or 106a) of the head (105a or 106a) is locked is formed.
At the circumferential end (103 or 104) of the other cover body portion, a screw hole (114 or 115) into which the shaft portion (105b or 106b) of the bolt (105 or 106) is removably screwed is formed. It is characterized by being composed of.

By operating the tightening means 225 including bolts (105 or 106), the pair of cover body portions 227 and 228 can be removed and attached, thereby removing and replacing the molds 4, 60 and 73, and performing maintenance. It can be done with a simple task.
(1e) As shown in FIGS. 4 to 9,
The first outward flange 221 is formed with a sealing recess 237 facing the outside of the pipe shaft 238a of the first pipe 11.
The first sealing contact surface 239 is the bottom of the sealing recess 237 and is perpendicular to the pipe shaft 238a of the first pipe 11.
The second outward flange 223 is formed with a sealing cylinder portion 240 that faces the outside of the pipe shaft 238b of the second pipe 12 and fits into the sealing recess 237.
The second sealing contact surface 241 is a free end surface of the sealing cylinder portion 240, and is characterized in that it is substantially perpendicular to the pipe shaft 238b of the second pipe 12.

In manufacturing a long molded product such as a corner material, the connecting devices 5 and 13 are shown in a cross-sectional view of FIG. 89 (3), for example, in a simplified manner in part as compared with the prior art. For example, the sealing cylinder portion 240 having a circular cross section is fitted into the sealing recess 237 having a circular cross section, and the play of the first sealing contact surface 239, which is the bottom of the sealing recess 237, and the sealing cylinder 240. The seal is achieved by contacting the second sealing contact surface 241 which is an end surface. These first and second sealing contact surfaces 239 and 241 are perpendicular to the pipe shafts 238a and 238b, and are surface-contacted and crimped.

Therefore, the sealing function is improved, no resin leakage or resin retention portion is formed, problems such as discoloration of the extruded product and resin burning do not occur, and the quality of the long molded product can be improved.

Further, since the crimping portion between the first sealing contact surface 239 of the sealing recess 237 and the second sealing contact surface 241 of the sealing cylinder portion 240 is a crimping portion between flat surfaces, the crimping portion thereof. If the device is damaged, it will be easy to check, correct, and adjust the damage such as scratches, dents, and deformation. In this way, Honmei is excellent in maintainability.

In connecting the extrusion molds 4, 60, 73 to the extruder 2 by the connecting devices 5 and 13, the operator supports the molds 4, 60, 73 with one hand, and the mold 4, 60, 73 is supported by one hand. The sealing cylinders 240 of 60 and 73 are fitted into the sealing recess 237 of the extruder 2 (first step), and then, as shown in FIG. 9, on the lower inner surface 237a of the sealing recess 237. , The lower outer surface 240a of the sealing cylinder 240 is received (second step), and with the other hand, grasp one half-split cover body portion 227 of the upper half, and hold the cover body portion 227 from above. It is attached by covering the upper portions of the first and second inclined surfaces 222 and 224, and is brought into contact with the inner surface of the cover body portion 227 (third step).

As a result, the molds 4, 60, and 73 do not fall and can be temporarily and stably held in the first pipe 11 without attaching the other half-split cover body portion 228 of the lower half. In this holding state, the first seal contact surface 239 of the seal recess 237 and the second seal contact surface 241 of the seal cylinder portion 240 are in contact with each other. According to another idea of the present invention, the first seal contact surface 239 and the second seal contact surface 241 may not be in contact with each other in the holding state.

Then, since the operator is ready to use both hands, one hand holds the half-split cover body portion 228 of the lower half of the other, and the first and second inclined surfaces 222 and 224 are held from below. While covering and supporting the lower part (fourth step), the tightening means 225 is operated with the other hand (fifth step). Regarding the operation of the tightening means 225, for example, with the other hand, the bolt (105 or 106) of the tightening means 225 is inserted into the insertion hole (116 or 117) of the one cover body portion 227 of the upper half, and then the driver is inserted. Rotately, the bolt (105 or 106) is screwed into the screw hole (114 or 115) of the other cover body portion 228 of the lower half to be screwed and clamped. When the connection is completed, the pipe shaft 238a of the first pipe 11 and the pipe shaft 238b of the second pipe 12 exist in a straight line. In this way, one worker can perform the work of connecting the extrusion molding dies 4, 60, and 73 to the extruder 2. Further, one worker can remove the molds 4, 60, and 73 from the extruder 2 in the reverse procedure of the above. Therefore, the present invention is excellent in fitting, detaching connection, and detachment workability.

If the protruding length of the sealing cylinder portion 240c is too long and the sealing recess 237c is too deep as shown in FIG. 10, the sealing cylinder portion 240c and the sealing recess are used during the connection / disconnection work. It is difficult to smoothly fit and detach from the 237c. For example, as shown in FIGS. 11 and 12, when the first and second pipes 11 and 12 try to fit diagonally at a slight angle, the vicinity of the sealing cylinder portion 240c and the sealing recess 237c is near. It causes a collision or deformation.

On the contrary, as shown in FIG. 13, if the protruding length of the sealing cylinder portion 240d is too short and the sealing recess 237d is too shallow, the sealing cylinder portion 240d fits into the sealing recess 237d. Even if they are combined, if the extrusion molding dies 4, 60, 73 cannot be held in the first pipe 11, and the dies 4, 60, 73 fall like the arrow 242, 2 A human worker is needed. One worker supports the molds 4, 60, 73 with one hand and grasps one half-split cover body portion 227 of the upper half with the other hand, and the first and second inclined surfaces. Keeping it mounted over the top of 222 and 224, the other operator operates the tightening means 225 while holding the other cover body portion 228 of the lower half.

In FIGS. 10 to 13, only one half-split cover body portion 227 of the upper half is used for the first sealing contact surface 239 of the sealing recess 237 and for the second sealing of the sealing cylinder portion 240. It is not possible to temporarily and stably hold the molds 4, 60, and 73 so that they do not come into contact with the contact surface 241 and fall.

The work of connecting and disconnecting the molds 4, 60, and 73 to and from the extruder 2 can be performed by one worker, and the workability is excellent.

As for the protruding length of the sealing cylinder portion 240, only one half-split cover body portion 227 of the upper half is used, and the molds 4, 60 are used without attaching the other half-split cover body portion 228 of the lower half. , 73 is selected as a value that can be temporarily held in the first pipe 11, so that it is possible to avoid causing a collision or deformation of the sealing cylinder portion 240 during the work of connecting and disconnecting.

As described above, since the maintainability, connection and disconnection workability are excellent, the quality of the long molded product can be improved and the productivity can be improved.

The first pipe 11 provided in the extruder 2 and the second pipe 12 provided in the extrusion molding dies 4, 60, 73 are connected, and the dies 4, 60, 73 do not have a tubular shape. A long extruded product can be obtained from dies 4, 60 and 73 having a substantially product shape. Therefore, it is possible to reduce the residence amount and residence time of the resin, prevent thermal deterioration of the resin, and reduce quality deterioration. In addition, the color tone of the resin can be changed (resin color change) in a short time.

The extrusion die connecting device includes the extrusion dies 4, 60, 73 provided with the second pipe 12 connected to the first pipe 11 of the extruder 2 installed at a fixed position, and the second pipe. The mounting postures of the molds 4, 60, and 73 can be adjusted by angularly shifting around the tube shaft 238b of the twelve. Therefore, the long extruded product extruded downstream from the dies 4, 60, 73 can be obtained in a desired angular posture around the pipe shaft 238b of the second pipe 12. For example, as will be described later, the flow holes of a mold for extruding a molded product such as a corner material such as a V-shaped or U-shaped having a bent cross section at right angles to the axis are formed into an inverted V-shaped shape that is convex upward or an inverted V shape that is convex upward. By arranging it in a U-shape or the like, water droplets, foreign substances, etc. can easily slip and fall from the surfaces of the corner materials 25 and 66, do not adhere, and the quality can be improved.

As described above, the extrusion-molding die connecting device can angularly displace the extrusion-molding dies 4, 60, 73 to adjust the mounting posture of the dies 4, 60, 73. It is possible to facilitate the warping of the long extruded product extruded downstream from the molds 4, 60 and 73.

FIG. 90 (1) is a side view showing a part of a conventional manufacturing apparatus for a long deformed extruded product. The molten synthetic resin from the extruder 670 is supplied to the extrusion die 671 connected to the extruder 670, and the deformed extrusion molded product 672 is transferred to the sizing die 674 installed on the molding table 673. The supplied molded product 675 that is warped upward is displaced downward by the warp correcting means 678 as in reference numeral 679, and the warp is corrected.

FIG. 90 (2) is a cross-sectional view taken along the axis of the deformed extruded product 675 supplied downstream from the sizing die 674 in the posture shown in FIG. 90 (1). This molded product 675 is a hollow product, and since the rib 676 is located above the central axis 677, the upper portion does not cool well depending on its shape, and the cooling speed differs. Occurrence occurs. Warpage also occurs in the case of unbalanced meat products.

FIG. 90 (3) is a perspective view of a deformed extruded product 675 supplied downstream from the sizing die 674 in FIG. 90 (1). In order to correct the upward warp shown in FIG. 90 (3) of the deformed extruded product 675 having the cross section of FIG. 90 (2), the warp correction means 678 applies a force downward in the direction opposite to the warp. Acting and displacing, straightening as reference mark 679 and correcting warpage to obtain a product with a linear axis 677. In this conventional technique, the molding table 673 becomes an obstacle when performing the straightening on the lower side, and there is a limit to the straightening on the lower side. This connecting device solves the problem of this conventional manufacturing device.

FIG. 91 (1) is a plan view showing a part of a manufacturing apparatus for a long deformed extruded product according to an embodiment of the present invention. The molten synthetic resin from the extruder 2 is supplied from the first pipe 11 to the second pipe 12 of the deformed extrusion mold 681 via the connecting device 5 according to the concept of the present invention, and the deformed extrusion molded product 672 is supplied. , Is supplied to the sizing mold 684 installed on the molding table 673. The extrusion die 681 and the sizing die 684 are similar to the prior art of FIG. 90 (1), but it should be noted that the molded product 675 from the sizing die 684 is shown in FIG. 91 (1). Installed with angular displacement around the axis of the moving direction so as to warp to the left and right sides (for example, below FIG. 91 (1)) with respect to the moving direction (right side of FIG. 91 (1)) in a plan view. Will be done. The work of adjusting and installing the extrusion molding die 681 by angular displacement becomes possible for the first time by the connecting device 5.

FIG. 91 (2) is an axially perpendicular cross-sectional view of the deformed extruded product 675 supplied downstream from the sizing die 674 in the posture shown in FIG. 91 (1), and FIG. 91 (3) is a sectional view taken along the axis of FIG. 91 (1). ) Is a perspective view of a deformed extruded product 675 supplied downstream from the sizing die 684. The posture of the sizing die 684 is also set on the molding table 673 as the angular displacement of the extrusion die 681 is adjusted by the connecting device 5.

The warp correction means 688 applies a force to displace the molded product 675 from the sizing mold 684 in the direction opposite to the warp of FIG. 91 (1) to correct it as shown by reference numeral 689. Warpage correction is performed to obtain a product having a linear axis 677.

As in this embodiment, the extrusion molding die 681 is rotated and the rib 676 is positioned on the lateral side to increase the space in the width direction (vertical direction in FIG. 91 (1)) of the molding table 673. Since it is possible in many cases, there is no limit to the correction of the warp of the molded product 675.

Since the connecting device 5 has a structure in which the mold 681 can be rotated by loosening the screws of the bolts 105 and 106 without removing the cover body 226, the angular displacement adjusting work of the extrusion molding mold 681 can be performed. , Easy. The present invention is not only excellent in fitting and detaching connection and detachment workability, but also excellent in workability of angular displacement adjustment work.

(1f) As shown in the cross-sectional view of FIG.
The first outward flange 221 is formed with a sealing cylinder portion 240e facing the outside of the pipe shaft 238a of the first pipe 11.
The first sealing contact surface 241e is a free end surface of the sealing cylinder portion 240e, and is perpendicular to the pipe shaft 238a of the first pipe 11.
The second outward flange 223 is formed with a sealing recess 237e that faces the outside of the pipe shaft 238b of the second pipe 12 and into which the sealing cylinder portion 240e is fitted.
The second sealing contact surface 239e is the bottom of the sealing recess 237e and is perpendicular to the pipe shaft 238b of the second pipe 12.

Contrary to the above configuration, the sealing cylinder portion 240e is formed in the first pipe 11 of the extruder 2, and the sealing recess 237e is formed in the second pipe 12 of the extrusion molding dies 4, 60, 73. In a state where the upper outer surface 240f of the sealing cylinder portion 240e on the extruder 2 side receives the upper inner surface 237f of the sealing recess 237e on the molds 4, 60, and 73 sides, one of the cover body portions 227 is attached. The molds 4, 60, and 73 can be temporarily kept in a hanging state by covering the upper portions of the first and second inclined surfaces 222 and 224, so that the extrusion molding die can be temporarily maintained by one worker. The molds 4, 60, and 73 can be connected to and detached from the extruder 2. The same effect as described above can be achieved.

(2) As shown in FIGS. 31, 48 and 57.
In a corner material in which a pair of plate members are connected at a bent portion, the outer surface of the bent portion and a part of the plate member near the bent portion is smoothly formed.
A corner material characterized in that a large number of uneven stripes extending along the longitudinal direction of the corner material are formed adjacent to each other in the width direction on the remaining outer surface of the plate member.

In a corner material in which a pair of plate members are connected by a bent portion, it is also called a knurl to increase the adhesive force of the corner material of the wall covering material such as cloth and wallpaper over the bent portion and its vicinity. The uneven stripes are made into a smooth outer surface that does not form. No uneven stripes appear on the outer surface of wall coverings such as cloth and wallpaper, resulting in a beautiful finish.

A large number of holes are perforated at intervals in the corner material plate member. The effect of the adhesive entering the holes and increasing the adhesive strength of the corner material to the building can be greatly improved, so to speak, the anchor effect can be achieved, and the strength of the corner material is reduced due to the holes so that the installation work is not hindered. To suppress. Excess adhesive will get into the holes and will not stick out.

(8) As shown in FIGS. 18 to 22, 27, 28, 51 to 53, 55, 56, 60 to 64, and the like.
In an extrusion mold having a plurality of divided mold plates along the resin moving direction.
Guide protrusions 281 and 282 extending perpendicularly to the resin moving direction and guide notches 284 and 285 or guide grooves extending perpendicularly to the resin moving direction are formed on each mold plate by fitting the guide protrusions 281 and 282. A molding die characterized by being made.

In the mold plate on the entry side or the exit side having a substantially rectangular shape as a whole, a pair of guide protrusions parallel to each other in a virtual plane perpendicular to the resin movement direction are formed on both sides of the rectangle.
In a mold plate whose overall shape is substantially rectangular on the exit side or the entrance side, a pair of guide notches parallel to each other in a virtual plane perpendicular to the resin movement direction are formed on both sides of the rectangle to guide the mold plate. A fitting structure for positioning a mold in which a protrusion and a guide notch are fitted to each other.

The rectangular body is a three-dimensional shape having a square or rectangular cross section in a virtual plane perpendicular to the resin moving direction and extending in the resin moving direction. The present invention is not intended to be limited to rectangular bodies and is practiced in connection with various other shapes.
Mutual positioning of the entry-side mold plate and the exit-side mold plate around the axis in the resin moving direction can be easily and accurately achieved.

(9) As shown in FIGS. 23 to 25, 27, 28 to 30, and the like.
In an extrusion mold having a plurality of divided mold members in a virtual plane perpendicular to the resin moving direction.
Extrusion molding is characterized in that each mold member is formed with a guide protrusion 454 extending along the resin moving direction and a guide groove 456 fitted to the guide protrusion 454 and extending along the resin moving direction. Mold for use.

Mutual positioning of the mold members around the axis in the resin moving direction can be easily and accurately achieved.

(10) As shown in FIGS. 16 to 22, and 51 to 53,
In an extrusion molding die having a flow hole through which a molded product is guided.
For extrusion molding, a reference surface for a leveling device 287 corresponding to an angular position of a flow hole is formed on the upper portion of the mold so as to extend perpendicularly to the resin moving direction around an axis parallel to the resin moving direction. Mold.

It is a rotation angle adjustment structure for setting the angular displacement position around the axis of the resin movement direction of the mold in order to form a reference surface for the leveling device on the mold and facilitate the adjustment of the posture of the mold.
A flat surface is formed on the upper corner or curved portion corresponding to the bent portion of the flow surface such as the inverted V shape or the inverted U shape in the inlet mold plate having an almost rectangular shape as a whole. The reference surface for the leveling device is set to 287, and in combination with the use of the pipe connecting device 5 described above, the adjustment work around the axes of the molds 4 and 60 is performed.

The posture of the mold is easily adjusted so that the symmetrical plane 289 of the corner material is vertical to the bent portion connecting the pair of plate members of the corner material formed in the inverted V shape or the inverted U shape.

(11) As shown in FIGS. 28 to 30, 56.
The cross-sectional area of the flow hole per unit length in the width direction is formed larger toward the upstream side in the resin movement direction of the flow hole formed in the extrusion molding die, that is, toward the outside in the width direction. A die for extrusion molding, which is characterized by reducing the flow path resistance in the width direction of the flow hole.

(12a) As shown in FIGS. 16-31.
In an extrusion molding die for a V-shaped corner material 25 having a bent cross section perpendicular to the axis, in which a pair of plate members 152 and 153 are connected by a bent portion 155.
A first mold member 21 having a flow surface 262 and 263 forming an inner surface of each pair of plate members 152 and 153 and a bent portion 155.
A second mold member 22 having a flow surface 264 forming an outer surface of one plate member 152,
The third mold member 23 having the flow surface 265 forming the outer surface of the other plate member 153 is
Removably fixed by connecting means 471g to 471L
The resin flow holes 277 formed by the flow surfaces 262 to 265 of the first to third mold members 21, 22, and 23 are arranged in an inverted V shape that is convex upward.
The split surfaces 267 and 269 of the first and second mold members 21 and 22 and the split surfaces 268 and 272 of the first and third mold members 21 and 23 are in the middle of the thickness perpendicular to the resin movement direction of the flow holes 277. A die for extrusion molding, characterized in that the position is parallel to the direction of movement of the resin.

As shown in FIGS. 16, 48, 52 and the like.
The flow holes of the mold for extruding a molded product such as a corner material such as a V-shape or a U-shape having a bent cross section perpendicular to the axis shall be arranged in a shape such as an inverted V-shape or an inverted U-shape that is convex upward. It is an extrusion molding die for a molded product such as a corner material characterized by.

Since the corner materials 25 and 66 are formed and supplied from the molds 4 and 60 in an inverted V-shape or an inverted U-shape, water droplets, foreign substances, etc. slide and fall from the surfaces of the corner materials 25 and 66. Easy to do and does not adhere. Therefore, undesired patterns, stripes, and other stain marks are not generated on the corner materials 25 and 66, and the quality can be improved. Further, even in a configuration in which the corner materials 25 and 66 are cooled by injecting water or passing through the water tank downstream of the subsequent sizing device 9, the water easily falls and does not adhere to the corner material V. The quality of the corner materials 25 and 66 such as the shape or the U shape can be improved.

The contact surfaces 267 to 274; 421-415; 464, 467 of the plurality of mold members 21 to 23; 64, 65; 81, 82 contact each other to form a divided surface of the extrusion mold. In FIGS. 26, 54, and 65, for example, ΔL1≈ΔL2. This prevents burrs from being generated from the free end portions 279 at both ends in the width direction of the plate members 152 and 153 of the corner material such as V-shaped, U-shaped, and flat-shaped. For convenience of understanding, the reference numeral 279 is not only the free end portion of the corner material plate members 152 and 153 (FIGS. 31 and 57), but also the flow hole (FIG. 26) and the cooling flow hole 70 (FIG. 58). The free end of is also shown.

Only the contact surfaces of the first mold member with the second and third mold members need to be ground for repair when the flow surface is worn. Only the contact surface of the second mold member with the first mold member needs to be ground. Alternatively, only the contact surface of the third mold member with the first mold member may be ground. Therefore, the repair work is easy. Of the first to third mold members, only the damaged mold member whose flow hole is severely worn needs to be replaced, which is economical.

(12b) The second and third mold members 22 and 23 face the dividing surfaces 270, 271; 273 and 274 of the second and third mold members 22 and 23 in the resin moving direction. A guide groove 456 extending along the shape is formed.
Extends along the resin moving direction so as to face the dividing surfaces 270, 271; 273, 274 of the second and third mold members 22, 23 on the other 23 of the second and third mold members 22, 23. Therefore, a guide protrusion 454 that fits into the guide groove 456 is formed.

Mutual positioning of the mold members around the axis in the resin moving direction can be easily and accurately achieved.

(12c) In an extrusion molding die for a V-shaped corner material 25 having a bent axial cross section in which a pair of plate members 152 and 153 are connected by a bent portion 155.
It has a plurality of divided mold plates 16 and 18 from upstream to downstream along the resin moving direction.
The most downstream mold plate 18 is
A first mold member 21 having a flow surface 262 and 263 forming an inner surface of each pair of plate members 152 and 153 and a bent portion 155.
A second mold member 22 having a flow surface 264 forming an outer surface of one plate member 152,
The third mold member 23 having the flow surface 265 forming the outer surface of the other plate member 153 is
They are detachably fixed to each other by the connecting means 471g to 471L.
The resin flow holes 277 formed by the flow surfaces 262 to 265 of the first to third mold members 21, 22, and 23 are arranged in an inverted V shape that is convex upward.
The split surfaces 267 and 269 of the first and second mold members 21 and 22 and the split surfaces 268 and 272 of the first and third mold members 21 and 23 are in the middle of the thickness perpendicular to the resin movement direction of the flow holes 277. At the position, parallel to the resin movement direction,
Bolt insertion holes 472a to 472f parallel to the resin moving direction are formed in the first to third mold members 21, 22, and 23, respectively.
Bolts 471a to 471f for inserting bolt insertion holes 472a to 472f are detachably screwed into the mold plate 16 arranged upstream of the most downstream mold plate 18, and the most downstream mold plate 18 and the above. Screw holes 473a to 473f for fixing the upstream mold plate 16 are formed.
In the bolt insertion holes 472a and 472b formed in the first mold member 21, the first mold member 21 was displaced relative to the upstream mold plate 16 by grinding the divided surfaces 267, 269; 268 and 272. A die for extrusion molding, characterized in that the bolts 471a and 471b are formed in a size that allows insertion and fixing.

When the split surfaces 267, 269; 268 and 272 are ground to repair the worn flow hole 277 in the most downstream mold plate 18, the split surfaces 267, 269; 268 and 272 after grinding are brought into contact with each other again. At least one of the combination of the first mold member 21 and the second and third mold members 22 and 23 must be displaced relative to the upstream mold plate 16.

The bolt insertion holes 472a and 472b through which the bolts 471a and 471b for fixing the first mold member 21 to the upstream mold plate 16 are inserted are formed in a dimensional shape that enables the relative displacement. For example, the bolt insertion holes 472a and 472b are formed by extending them in a direction away from the flow hole 277. As an example, the direction away from the flow hole 277 may be a plane of symmetry or a bisector 289 (see FIGS. 7 and 54).

Therefore, in one embodiment, the inner diameter of the bolt insertion holes 472a and 472b having a circular cross section is selected to be a value larger than the outer diameter of the columnar shaft portion of the bolts 471a and 471b to allow the relative displacement. In another embodiment, the cross section of the bolt insertion holes 472a, 472b is formed in an oval shape with both ends of a rectangle extending in a direction away from the flow hole 277.

In yet another embodiment of the embodiment, the second and third mold members 22, 23 are such that the combination of the second and third mold members 22, 23 can be displaced relative to the upstream mold plate 16. The bolt insertion holes 472c to 472f of the above are formed by extending in a direction approaching the flow hole 277, and for example, the cross section may be circular with a large inner diameter selected as described above, or an oval shape extending in a direction approaching the flow hole 277. It may be formed.

(12d) The resin moving direction of the flow hole 277 extends laterally.
The molds 4, 16 and 18 have a substantially rectangular cross section perpendicular to the resin moving direction.
The first mold member 21 is formed so as to form a rectangular corner portion thereof.
A reference surface 287 on which a spirit level is installed is formed at a diagonal position of the corner.

It is a rotation angle adjustment structure for setting the angular displacement position around the axis of the resin movement direction of the mold in order to form a reference surface for the leveling device on the mold and facilitate the adjustment of the posture of the mold.
A flat surface is formed on the upper corner or curved portion corresponding to the bent portion of the flow surface such as the inverted V shape or the inverted U shape in the inlet mold plate having an almost rectangular shape as a whole. The reference surface for the leveling device is set to 287, and in combination with the use of the pipe connecting device 5 described above, the adjustment work around the axes of the molds 4 and 60 is performed.

The posture of the mold is easily adjusted so that the symmetrical plane 289 of the corner material is vertical to the bent portion connecting the pair of plate members of the corner material formed in the inverted V shape or the inverted U shape.

A flow surface along a bisector 289 at an angle θ5 (for example, 90 °) formed by one of the divided surfaces 267 and 269 and the other divided surface 268 and 272 in a virtual surface perpendicular to the resin moving direction. It is formed so as to extend away from 277.

(12e) In an extrusion molding die for a U-shaped corner material 66 having a bent axial cross section, in which a pair of plate members 331 and 332 are connected by a bent portion 333.
A first mold member 64 having a flow surface 336 forming an outer surface of each pair of plate members 331 and 332 and a bent portion 333,
The second mold member 65 having the flow surface 337 forming the inner surface of each pair of plate members 331 and 332 and the bent portion 333 is
Removably fixed to each other by connecting means 338
The resin flow holes 417 formed by the flow surfaces 336 and 337 of the first and second mold members 64 and 65 are arranged in an inverted U shape that is convex upward.
The dividing surfaces 412, 413; 414, 415 of the first and second mold members 64, 65 are located in the middle of the thickness of the flow hole 417 perpendicular to the resin moving direction, and are parallel to the resin moving direction. Extrusion molding die.

(12f) In an extrusion molding die for a U-shaped corner material 25 having a bent axial cross section in which a pair of plate members 331 and 332 are connected by a bent portion 333.
It has a plurality of divided mold plates 62, 63 from upstream to downstream along the resin moving direction.
The most downstream mold plate 63
A first mold member 64 having a flow surface 336 forming an outer surface of each pair of plate members 331 and 332 and a bent portion 333,
The second mold member 65 having the flow surface 337 forming the inner surface of each pair of plate members 331 and 332 and the bent portion 333 is
Removably fixed to each other by connecting means 338
The resin flow holes 417 formed by the flow surfaces 336 and 337 of the first and second mold members 64 and 65 are arranged in an inverted U shape that is convex upward.
The dividing surfaces 412, 413; 414, 415 of the first and second mold members 64, 65 are in the middle of the thickness perpendicular to the resin moving direction of the flow hole 417, and are parallel to the resin moving direction.
Bolt insertion holes 339a to 339e parallel to the resin moving direction are formed in the first and second mold members 64 and 65, respectively.
Bolts 338 for inserting bolt insertion holes 339a to 339e are removably screwed into the mold plate 62 arranged upstream of the most downstream mold plate 63, and the most downstream mold plate 63 and the upstream of the mold plate 63. Screw holes 340a to 340e for fixing the mold plate 62 are formed.
In the bolt insertion holes 339a and 339b formed in the second mold member 65, the second mold member 65 was displaced relative to the upstream mold plate 62 by grinding the divided surfaces 412, 413; 414, 415. A die for extrusion molding, characterized in that it is formed in a size that allows the insertion and fixing of bolts 338a and 338b.

(12 g) The resin moving direction of the flow hole 416 extends laterally.
The molds 60, 62, and 63 have a substantially rectangular cross section perpendicular to the resin moving direction.
The second mold member 65 is formed so as to form a rectangular corner portion thereof.
An extrusion molding die characterized in that a reference surface 287a on which a spirit level is installed is formed at diagonal positions of the corners.

The effects described above in relation to the V-shaped corner material 25 are similarly achieved in relation to the U-shaped corner material 66.

(12i) The guide protrusions 281, 282; 281a, 282a extending perpendicularly to the resin moving direction and the guide protrusions 281, 282; 281a, 282a are fitted to the mold plates 16, 18; 62, 63. It is characterized in that a guide notch 284, 285; 284a, 285a or a guide groove extending perpendicularly to the resin moving direction is formed.

In the mold plate on the entry side or the exit side having a substantially rectangular shape as a whole, a pair of guide protrusions parallel to each other in a virtual plane perpendicular to the resin movement direction are formed on both sides of the rectangle.
In a mold plate whose overall shape is substantially rectangular on the exit side or the entrance side, a pair of guide notches parallel to each other in a virtual plane perpendicular to the resin movement direction are formed on both sides of the rectangle to guide the mold plate. A fitting structure for positioning a mold in which a protrusion and a guide notch are fitted to each other.

(13) As shown in FIGS. 32 to 37
A heating device characterized in that the outer surface of an object to be heated is surrounded by a pair of half-split electric heater members, and both ends of each electric heater member are detachably connected with fasteners.

(14) Each electric heater member
A heating element in which the heating wire is surrounded by an electric insulator is interposed between the pair of metal cover members.
On one cover member, a recess is formed in which the base of the terminal piece to which both ends of the heating wire are connected is fitted.
The shaft portion of the terminal piece is characterized in that it is attached so as to project outward from the take-out hole formed in the recess.

Even if there is a large or small error in the outer surface of the object to be heated such as a mold, it is possible to heat the object in close contact with the outer surface by connecting the fasteners.

Even if one of the pair of electric heater members is damaged, only the damaged electric heater member can be replaced and repaired, which is economically advantageous.

(33) An extrusion-molded product manufacturing apparatus, characterized in that a cooling device for cooling a molded product from the mold is arranged between an extrusion-molding mold and a sizing apparatus.

(34) As shown in FIGS. 2 and 38.
It is characterized by injecting air from above and below the inverted V-shaped or inverted U-shaped corner material from the extrusion molding die with a nozzle to cool it and guide it to the sizing device. Corner material manufacturing equipment.

The high-temperature molded product from the mold can be air-cooled and smoothly introduced into the flow holes formed by the flow surfaces in the upper and lower mold members of the sizing device.

The air from the nozzle blows off the volatile gas generated from the high-temperature molded product from the mold and scatters it. The volatile gas comes into contact with the resin inlets of the upper and lower mold members of the sizing device to form a sticky, so-called lump, which enters the flow holes of the upper and lower mold members and mixes with the molded product to improve the quality. Decrease. Air from the nozzle solves this problem.

(35) As shown in FIG. 38
A cooling device that cools extruded products by injecting air.
The air from the compressed air source is guided by a flexible tube consisting of a number of tube members that are length-divided, removable, and angleable.
A cooling device for an extruded product, characterized in that a removable nozzle member for injecting air and a changeable angle is attached to the tip of the flexible tube.

(36) The air-cooling device for extruded products provided between the mold and the sizing device can be divided in the length direction and can hold the set change angle, which is removable and can be changed. An extruded product manufacturing apparatus characterized by being composed of a large number of pipe members.

The direction, posture, flow rate, etc. of the air injection can be easily adjusted in order to smoothly introduce the molded product introduced from the mold into the sizing device into the sizing device. The number of air injection nozzles can be changed appropriately.

Conventionally, a pair of copper pipes extending vertically in the moving direction of the molded product are arranged above and below the molded product, and each copper pipe is provided with a plurality of nozzle holes at intervals in the elongated direction. It is completely impossible to achieve the above-mentioned advantages because the structure is formed and air is injected from each nozzle hole toward the molded product.

(40) It is characterized in that one plate member of an extruded product formed by connecting a pair of plate members at a bent portion is sandwiched between facing tensioning portions of a pair of endless take-up members and taken over. Pick-up device.

(41) As shown in FIGS. 39 to 44.
The upward warp of the corner material formed by connecting a pair of plate members such as an inverted V-shape or an inverted U-shape with the cross section perpendicular to the axis open downward is suppressed and twisted around the axis. In the state
By a pair of upper and lower annular take-up members (for example, Caterpillar (registered trademark)) in which a large number of rubber holding pieces with high frictional force are connected in an endless manner, or by a pair of upper and lower annular belts (such as a timing belt).
A pick-up device characterized in that one of a pair of corner plate members is sandwiched from above and below in a horizontal state and picked up in a moving direction.

Since one plate member of the corner material is picked up and down by surface contact, the pulling force can be increased and damage to the corner material can be prevented.

Even if the corner material meanders at the initial stage of the molding operation, it can be picked up while keeping one plate member of the molded product sandwiched.

Even if the cross-sectional shapes of the pair of plate members constituting the inverted V-shaped corner material are different, they can be picked up.

(42) As shown in FIGS. 46-48.
A plurality of drilling means are sequentially arranged along the moving direction of the object to be drilled, and the punching means is sequentially arranged.
Each drilling means has a combination of a punch and a die that drills a plurality of holes in the moving direction.
The number, size, shape and arrangement of holes drilled by each drilling means are the same.
Each drilling means is driven simultaneously and intermittently by a common driving means,
The time interval for each drive is selected so that the holes drilled in the product to be drilled have a uniform distribution over the entire length of the product to be drilled, corresponding to the moving speed of the product to be drilled. A drilling device characterized by.

(43) A drilling device for drilling a long plate member such as a corner material having a V-shaped or U-shaped cross section formed by connecting a pair of plate members at a bent portion.
With the corner material twisted around the axis and one of the plate members horizontal, the upstream drilling means makes holes in the first plurality (for example, 5) rows in the moving direction for each vertical movement. Perforated
In a state where the other plate member is leveled by twisting by a predetermined angle (90 °), the first plurality (for example, 5) rows in the moving direction are used for each vertical movement by the downstream drilling means. Drill a hole,
The upstream drilling means and the downstream drilling means are simultaneously driven up and down by a common crank mechanism.
A drilling device characterized in that holes are drilled in a second plurality (for example, 3) rows in the width direction of a molded product for each vertical movement by an upstream drilling means and a downstream drilling means.
Compared with the configuration in which each pair of plate members of the V-shaped corner material is individually drilled by a total of two drilling machines, the size is simplified and reduced.

(44) As shown in FIG.
It is a long product manufacturing equipment
Sequentially from upstream to downstream in the moving direction of long products
A pick-up device for picking up long items and
A processing device that mechanically, chemically, or electrically processes a long product from a pick-up device,
A long product from a processing device, which includes a double-sided tape sticking device for sticking an adhesive surface to which a release paper of a double-sided tape with a release paper is not adhered with movement. manufacturing device.

(45) The processing device is a drilling device for drilling a long product.
Prevents wrinkles from forming on the release paper of the double-sided tape attached to the long corner material at intervals in the long direction.

Tension is applied to the corner material upstream of the take-up device, but the tension is not applied or even if the tension is applied downstream, the value is very small. Apply double-sided tape to the corner material where there is almost no tension.

(46) A long product manufacturing device.
Sequentially from upstream to downstream in the moving direction of long products
The first pick-up device for picking up long items and
A processing device that intermittently performs mechanical, chemical, or electrical processing on long products from a pick-up device,
A double-sided tape affixing device that attaches an adhesive surface to a long product from a processing device to which the release paper of the double-sided tape with a release paper is not attached as it moves.
A device for manufacturing a long product, which includes a second pick-up device for picking up a long product to which a double-sided tape is attached by a double-sided tape attaching device.

(47) The corner material formed by connecting a pair of plate members at the bent portion is picked up by the first picking device, and then picked up.
A long product manufacturing device characterized in that a second pick-up device is arranged further downstream than a double-sided tape affixing device installed downstream of the perforation device.

When drilling two plate members of an inverted V-shaped corner material to which double-sided tape is attached, the movement of the molded product is stopped for a short time, and the slack of the molded product that occurs at this time is taken up by the second take-up device. Lost. The second pick-up device additionally picks up the amount of the molded product moved at the time of this stop.

As an example, the second pick-up device picks up two plate members of, for example, an inverted V-shaped corner material by sandwiching them with a pair of rollers made of silicon rubber or the like.

Since the slack of the molded product is removed by the second pick-up device, the holes in the first plurality (for example, 5) rows of each vertical movement are drilled by the upstream drilling means and the downstream drilling means in the drilling device. , The distance between the holes in the next first plurality (for example, 5) rows can be set accurately.

The double-sided tape affixed to the part increases the frictional force during movement downstream of the part, for example due to contact with other components that guide the part, but the second take-up device This molded product is smoothly guided downstream regardless of the increase in frictional force.

(50) As shown in FIGS. 59, 70 and 71.
A flat corner material is obtained by stacking and integrating soft resins for bent portions between a pair of plate members made of hard resin by an extrusion molding die.
Next, the extruded flat corner material is cooled by injecting air in a cooling device.
After that, in a cooling / flattening apparatus, a method / apparatus for manufacturing a flat corner material, which comprises applying pressure while sandwiching the apparatus to further cool and flatten the material.

The configuration of flattening the flat corner material supplied from the mold while cooling can be simplified.

(51) As shown in FIGS. 68 to 70.
(A) A first portion whose outer surface has a first end portion of a spherical surface and a first tube portion connected to the first end portion, and the outer diameter of the spherical surface at the end portion is larger than the outer diameter of the first tube portion. With the connecting pipe
(B) A second connecting pipe having a second end having a male screw and a second pipe connected to the second end.
(C) A second connecting pipe having an insertion hole having an inner diameter less than the outer diameter of the spherical surface at the end of the first connecting pipe through which the first pipe portion is inserted, and the inner surface surrounding the end of the spherical surface is a spherical surface. A spherical pipe joint characterized by having a cap nut having a female thread that is removable and screwed into the thread.

(52) The soft resin is supplied from the soft resin extruder to the mold member for which the soft resin is supplied between the pair of flow holes due to the flat flow surface of the hard resin via the spherical pipe joint.
This spherical fitting is
A first connecting pipe having a spherical end on the outer surface on one side of the mold member and the extruder.
The second connecting pipe to which the resin from the extruder is supplied and
A device for manufacturing a flat corner material, characterized in that an inner surface surrounding an end of a spherical surface through which a first connecting pipe is inserted is spherical, and the second connecting pipe has a bag nut that is detachably connected by a screw. ..

Even if the axes of the first and second connecting pipes are inclined in one plane, the soft resin can be continuously supplied at all times.

(53) As shown in FIG. 60
A flat corner material characterized in that a soft resin layer for a bent portion is partially laminated on the plate member over a gap between the plate members made of a pair of hard resins.

The adhesive strength between the plate member made of a pair of hard resins and the bent portion made of soft resin is improved, and undesired division at the bent portion is prevented.

(54) As shown in FIG. 60
In a mold for extrusion molding a flat corner material formed by connecting a pair of plate members at a bent portion.
It has upstream and downstream mold plates divided along the direction of resin movement,
The upstream mold plate is
It is formed with a gap in the width direction and has individual flow holes for hard resin for plate members.
The downstream mold plate is
A common flow hole that guides a pair of plate members from the individual flow holes for hard resin,
The soft resin for the curved portion is guided to the common flow hole, and the end faces of the pair of plate members are partially overlapped and laminated and fixed on one surface of the pair of plate members over the gap. An extrusion mold for a flat corner material, characterized by having a flexible resin supply path to which it adheres.

(56) A flat corner material formed by connecting a pair of plate members at a bent portion.
The soft resin is a flat corner material characterized by being made of a material having a high adhesive strength with a hard resin during extrusion molding.

(58) A recessed portion is formed on the protruding side between the common flow hole of the mold and the peripheral portion thereof.
An extrusion-molded die made of a flat corner material, characterized in that the outer peripheral portion of the recess is formed thick.

The flow holes of the upper and lower mold members and their peripheral portions are formed by being recessed on the protruding side, and the remaining outer peripheral portion is formed thickly in order to improve the strength. The outer peripheral portion is formed thick to improve the mounting strength.

(59) As shown in FIG. 61
In a mold for extrusion molding a flat corner material formed by connecting a pair of plate members at a bent portion.
It has upstream and downstream mold plates divided along the direction of resin movement,
The upstream mold plate is
It is formed with a gap in the width direction and has individual flow holes for hard resin for plate members.
The downstream mold plate is
A common flow hole that guides a pair of plate members from the individual flow holes for hard resin,
The soft resin for the curved portion is guided to the common flow hole, and the end faces of the pair of plate members are partially overlapped and laminated and fixed on one surface of the pair of plate members over the gap. It has a soft resin supply path to be fixed,
A concave recess is formed on the protruding side between the common flow hole of the mold and the peripheral portion thereof.
The outer circumference of the recess is thickly formed,
The end face facing upstream corresponding to the recess of the downstream mold plate is in surface contact with the end face facing downstream of the upstream mold plate, and the soft resin supply path is defined. Extrusion mold.

(59a) In a mold for extruding a flat corner material 80 formed by connecting a pair of plate members 424 and 425 made of a hard resin with a flexible bending portion 423 made of a soft resin.
It has upstream and downstream mold plates 75, 76 that are split along the direction of resin movement and fixed removable.
The upstream mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by the first connecting means.
The first mold member 78 is
The first and second flow surfaces 195 and 196, which extend in the width direction perpendicular to the resin movement direction and form one surface of each of the pair of plate members 424 and 425, respectively.
The first and second contact surfaces 244 and 245, which are formed on both outer sides of the first and second flow surfaces 195 and 196 and are formed so as to rise above the first and second flow surfaces 195 and 196.
A first raised portion formed above the first and second flow surfaces 195 and 196 and having a third contact surface 197 between the width directions of the first and second flow surfaces 195 and 196.
It has a first end face 521 facing downstream,
The second mold member 79 is
Third and fourth flow surfaces 201 and 202, which extend in the width direction perpendicular to the resin movement direction and form the other surface of each pair of plate members 424 and 425, respectively.
Between the width directions of the third and fourth flow surfaces 201 and 202, the third and fourth flow surfaces 201 and 202 are formed to be raised above the third and fourth flow surfaces 201 and 202, and abut on the third contact surface 197 of the first raised portion. A second raised portion having a fourth contact surface 203,
On both outer sides of the third and fourth flow surfaces 201 and 202, they are raised above the third and fourth flow surfaces 201 and 202 in the thickness direction and hit the first and second contact surfaces 244 and 245, respectively. It has fifth and sixth contact surfaces 246 and 247 that are in contact with each other to form a split surface together with the third and fourth contact surfaces 197 and 203.
The first flow surface 195 and the third flow surface 201 form an individual flow hole 205 for the first hard resin for one plate member 424.
The second flow surface 196 and the fourth flow surface 202 form an individual flow hole 206 for the second hard resin for the other plate member 425.
The downstream mold plate 76 is configured such that the third and fourth mold members 81 and 82 are removably fixed by the second connecting means.
The third mold member 81 is
The first mold member 78 has a second end surface 522 facing upstream in surface contact with the first end surface 521.
A soft resin supply recess 212 for guiding the soft resin for the bent portion 423 is formed on the second end surface 522.
A pair of plate members 424, 425 from the individual flow holes 205 and 206 for the first and second hard resins, and the soft resin supply, with the end of the soft resin supply recess 212 facing the upstream end extending in the width direction. A fifth flow surface 208, which commonly forms one surface of each of the bent portions 423 from the recess 212,
On both outer sides of the fifth flow surface 208, there are seventh and eighth contact surfaces 464 and 465 that are raised above the fifth flow surface 208.
The fourth mold member 82 is
The sixth and seventh flow surfaces 209, 211, which extend in the width direction and form the other surfaces of the pair of plate members 424 and 425, respectively.
A third raised portion 220 formed between the sixth and seventh flow planes 209 and 211 in the width direction above the sixth and seventh flow planes 209 and 211, and is a pair of plates. A third raised portion 220 forming an eighth flow surface 210 forming the other surface of the bent portion 423 between the members 424 and 425,
On both outer sides of the 6th and 7th flow surfaces 209 and 211, the divided surfaces are raised above the 6th and 7th flow surfaces 209 and 211 and abut on the 7th and 8th contact surfaces 464 and 465, respectively. It has 9th and 10th contact surfaces 467 and 468 to be formed.
A common flow hole 207 is formed by the fifth flow surface 208 and the sixth, seventh and eighth flow surfaces 209, 211 and 210.
The first end surface 521 of the first mold member 78 and the soft resin supply recess 212 of the third mold member 81 form a soft resin supply path 213 that guides the soft resin for the bent portion 423 to the common flow hole 207. It is defined that the soft resin supply path 213 forms a bent portion 423 connecting the pair of plate members 424 and 425 by partially overlapping and laminating the pair of plate members 424 and 425 on the one surface. Extruded mold for flat corner material.
These dividing surfaces 244, 246; 255, 247: 197, 203; 464, 467; 465, 468 (FIG. 60) extend along the guide notches 284 and 285, as clearly shown in FIG. 60 and the like.

The hard resin for the pair of plate members 424 and 425 moves through the individual flow holes 205 and 206 for the first and second hard resins of the upstream mold plate 75, respectively, and the common flow holes of the downstream mold plate 76. It is supplied to 207. The soft resin for the bendable bending portion 423 is formed by the first and second end faces 521 and 522 of the first and third mold members 78 and 81 coming into surface contact with each other to form a soft resin supply path 213. Is supplied to the upstream end of the common flow hole 207. Therefore, as the hard and soft resins move through the common flow holes 207, the bent portion 423 made of the soft resin is partially laminated on the one surface of the plate members 424 and 425 made of the hard resin. The flat corner material 80 is extruded.

Since the upstream and downstream mold plates 75 and 76 are removably fixed, the third mold member comes into surface contact with the first end surface 521 of the first mold member 78 when the soft resin supply path 213 is worn. The second end surface 522 of 81 may be ground and repaired, and the grinding work is easy.

Since the first and second mold members 78 and 79 of the upstream mold plate 75 can be removed by the first connecting means, the worn individual flow holes 205 and 206 for the first and second hard resins are repaired. Therefore, the divided surfaces 244 to 247, 197, and 203 may be ground. The first and second contact surfaces 244 and 245 and the third contact surface 197 of the dividing surface are raised above the first and second flow surfaces 195 and 196, and the fourth contact surface 203 and the fifth and fifth are. 6 The contact surfaces 246 and 247 are raised above the third and fourth flow surfaces 201 and 202, so that the first to sixth contact surfaces 244, 245, 197, 203, 246 and 247 are being ground. In addition, the first to fourth flow planes 195, 196, 201, and 202 are not erroneously ground, and repair is easy.

The third contact surface 197 may be formed in one plane together with the first and second contact surfaces 244 and 245, but may not be in one plane. Similarly, the fourth contact surface 203 may be formed in one plane together with the fifth and sixth contact surfaces 246 and 247, but may not be in one plane.

Similar to the upstream mold plate 75, the third and fourth mold members 81 and 82 of the downstream mold plate 76 can also be removed by the second connecting means, so that the worn common flow hole 207 is repaired. Therefore, the dividing surfaces 464, 465; 467, 468 may be ground. The 7th to 10th contact surfaces 464, 465, 467, and 468 forming the dividing surfaces 464, 465; 467 and 468 are raised above the 5th to 8th flow surfaces 208 to 211, and thus the 7th to 8th contact surfaces are raised. During the grinding operation of the tenth contact surface 464, 465, 467, 468, the fifth to eighth flow surfaces 208 to 211 are not accidentally ground, and repair is easy.

(59b) The third and fourth mold members 81 and 82 have recesses 427a and 427b formed on the common flow hole 207 and its peripheral portion on the downstream side.
The length L207 (see FIG. 59 (2)) of the common flow hole 207 in the resin movement direction is in the width direction as each hard resin for the pair of plate members 424 and 425 moves in the common flow hole 207. By being close to each other, the width of the soft resin for the bend 423 is selected to a predetermined value.
The outer peripheral portions 428a and 428b of the recess 427 are formed to be thicker than the common flow hole 207 and its peripheral portion.

(59d) In a mold for extruding a flat corner material 80 formed by connecting a pair of plate members 424 and 425 made of a hard resin with a flexible bending portion 423 made of a soft resin.
The first to third mold plates 74 to 76 are provided from upstream to downstream along the resin moving direction.
The second mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by the first connecting means.
The first mold member 78 is
The first and second flow surfaces 195 and 196, which extend in the width direction perpendicular to the resin movement direction and form one surface of each of the pair of plate members 424 and 425, respectively.
The first and second contact surfaces 244 and 245, which are formed on both outer sides of the first and second flow surfaces 195 and 196 and are formed so as to rise above the first and second flow surfaces 195 and 196.
A first raised portion formed above the first and second flow surfaces 195 and 196 and having a third contact surface 197 between the width directions of the first and second flow surfaces 195 and 196.
It has a first end face 521 facing downstream,
The second mold member 79 is
Third and fourth flow surfaces 201 and 202, which extend in the width direction perpendicular to the resin movement direction and form the other surface of each pair of plate members 424 and 425, respectively.
Between the width directions of the third and fourth flow surfaces 201 and 202, the third and fourth flow surfaces 201 and 202 are formed to be raised above the third and fourth flow surfaces 201 and 202, and abut on the third contact surface 197 of the first raised portion. A second raised portion having a fourth contact surface 203,
On both outer sides of the third and fourth flow surfaces 201 and 202, they are raised above the third and fourth flow surfaces 201 and 202 in the thickness direction and hit the first and second contact surfaces 244 and 245, respectively. It has fifth and sixth contact surfaces 246 and 247 that are in contact with each other to form a split surface together with the third and fourth contact surfaces 197 and 203.
The first flow surface 195 and the third flow surface 201 form an individual flow hole 205 for the first hard resin for one plate member 424.
The second flow surface 196 and the fourth flow surface 202 form an individual flow hole 206 for the second hard resin for the other plate member 425.
The first mold plate 74 has a common supply flow hole 204 for commonly supplying the hard resin to the first and second hard resin individual flow holes 205 and 206 of the second mold plate 75.
The third mold plate 76 is configured by fixing the third and fourth mold members 81 and 82 so as to be removable by the second connecting means.
The third mold member 81 is
The first mold member 78 has a second end surface 522 facing upstream in surface contact with the first end surface 521.
A soft resin supply recess 212 for guiding the soft resin for the bent portion 423 is formed on the second end surface 522.
A pair of plate members 424, 425 from the individual flow holes 205 and 206 for the first and second hard resins, and the soft resin supply, with the end of the soft resin supply recess 212 facing the upstream end extending in the width direction. A fifth flow surface 208, which commonly forms one surface of each of the bent portions 423 from the recess 212,
On both outer sides of the fifth flow surface 208, there are seventh and eighth contact surfaces 464 and 465 that are raised above the fifth flow surface 208.
The fourth mold member 82 is
The sixth and seventh flow surfaces 209, 211, which extend in the width direction and form the other surfaces of the pair of plate members 424 and 425, respectively.
A third raised portion 220 formed between the sixth and seventh flow planes 209 and 211 in the width direction above the sixth and seventh flow planes 209 and 211, and is a pair of plates. A third raised portion 220 forming an eighth flow surface 210 forming the other surface of the bent portion 423 between the members 424 and 425,
On both outer sides of the 6th and 7th flow surfaces 209 and 211, the divided surfaces are raised above the 6th to 8th flow surfaces 209 to 211 and abut on the 7th and 8th contact surfaces 464 and 465, respectively. It has 9th and 10th contact surfaces 467 and 468 to be formed.
A common flow hole 207 is formed by the fifth flow surface 208 and the sixth to eighth flow surfaces 209 to 211.
The first end surface 521 of the first mold member 78 and the soft resin supply recess 212 of the third mold member 81 guide the soft resin for the bent portion 423 to the common flow hole 207, and the plate members 424 and 425. A mold for extrusion molding of a flat corner material, characterized in that a soft resin supply path 213 which is partially overlapped and laminated on one surface of the above is defined.

When the split surfaces 244 to 247, 197, and 203 are ground in order to repair the worn first and second hard resin individual flow holes 205 and 206 in the second mold plate 75, the split surfaces 244 after grinding are ground. In order to bring the ~ 247, 197, and 203 into contact again, at least one of the first and second mold members 78, 79 must be displaced relative to the first mold plate 74.

Similarly, when the split surfaces 464, 465; 467, and 468 are ground in order to repair the worn common flow hole 207 in the third mold plate 76, the split surfaces 464, 465; 467, and 468 after grinding are used. In order to abut again, at least one of the third and fourth mold members 81 and 82 must be displaced relative to the first mold plate 74.

Therefore, the bolt insertion holes 520 and 516 through which the bolts for fixing the first to fourth mold members 78, 79; 81, 82 to the first mold plate 74 are inserted are dimensionally shaped to enable the relative displacement. Form to. For example, the bolt insertion holes 520 and 516 are formed by extending them in a direction away from the individual flow holes 205 and 206 for the first and second hard resins and the common flow holes 207. The directions away from the flow holes 205, 206, 207 are, for example, the first and second individual flow holes 205, 206 for the hard resin and the first to tenth flow surfaces 195, 196, 201, forming the common flow holes 207. The direction is perpendicular to 202, 208 to 211 and / or the first to tenth contact surfaces 244 to 247, 197, 203, 464 to 468.

The inner surface of the bolt insertion holes 520 and 516 is formed so as to have a gap in this direction from the outer surface of the shaft portion of the bolt screwed into the screw hole 517 of the first mold plate 74, and the relative displacement thereof. To enable. Therefore, in one embodiment, the inner diameter of the bolt insertion holes 520 and 516 having a circular cross section is selected to be a value larger than the outer diameter of the columnar shaft portion of the bolt to allow the relative displacement. In another embodiment, the cross section of the bolt insertion holes 520, 516 is formed in an oval shape with both ends of a rectangle extending in the direction away from the flow holes 205, 206, 207.

(59 g) Guide protrusions 281a and 282a extending perpendicularly to the resin moving direction are formed on one of the first and second mold plates 74 and 75, 74.
The other 75 of the first and second mold plates 74 and 75 is characterized in that a guide notch 284a, 285a or a guide groove that fits into the guide protrusions 281a and 282a and extends perpendicularly to the resin moving direction is formed. And.

Mutual positioning of the mold members around the axis in the resin moving direction can be easily and accurately achieved.

(59h) In an extrusion molding apparatus for a flat corner material, which extrudes a flat corner material 80 formed by connecting a pair of plate members 424 and 425 made of a hard resin with a flexible bending portion 423 made of a soft resin.
(A) A hard resin extruder having a first pipe and supplying a molten hard resin from the first pipe.
(B) Extrusion molding die
(B1) The first to third mold plates 74 to 76 are provided from upstream to downstream along the resin moving direction.
(B2) The second mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by the first connecting means.
The first mold member 78 is
The first and second flow surfaces 195 and 196, which extend in the width direction perpendicular to the resin movement direction and form one surface of each of the pair of plate members 424 and 425, respectively.
The first and second contact surfaces 244 and 245, which are formed on both outer sides of the first and second flow surfaces 195 and 196 and are formed so as to rise above the first and second flow surfaces 195 and 196.
A first raised portion formed above the first and second flow surfaces 195 and 196 and having a third contact surface 197 between the width directions of the first and second flow surfaces 195 and 196.
It has a first end face 521 facing downstream,
The second mold member 79 is
Third and fourth flow surfaces 201 and 202, which extend in the width direction perpendicular to the resin movement direction and form the other surface of each pair of plate members 424 and 425, respectively.
Between the width directions of the third and fourth flow surfaces 201 and 202, the third and fourth flow surfaces 201 and 202 are formed to be raised from the third and fourth flow surfaces 201 and 202, and hit the third contact surface 197a of the first raised portion 197. A second raised portion having a fourth contact surface 203 in contact with the
On both outer sides of the third and fourth flow surfaces 201 and 202, they are raised above the third and fourth flow surfaces 201 and 202 in the thickness direction and hit the first and second contact surfaces 244 and 245, respectively. It has fifth and sixth contact surfaces 246 and 247 that are in contact with each other to form a split surface together with the third and fourth contact surfaces 197 and 203.
The first flow surface 195 and the third flow surface 201 form an individual flow hole 205 for the first hard resin for one plate member 424.
The second flow surface 196 and the fourth flow surface 202 form an individual flow hole 206 for the second hard resin for the other plate member 425.
(B3) The first mold plate 74 has a second pipe, and the pipe shaft 238b of the second pipe is on the first straight line common to the pipe shaft 238a of the first pipe, and is from this second pipe. It has a common supply flow hole 204 for commonly supplying the hard resin to the first and second hard resin individual flow holes 205 and 206 of the second mold plate 75.
(B4) The third mold plate 76 is configured such that the third and fourth mold members 81 and 82 are removably fixed by the second connecting means.
The third mold member 81 is
The first mold member 78 has a second end surface 522 facing upstream in surface contact with the first end surface 521.
A soft resin supply recess 212 for guiding the soft resin for the bent portion 423 is formed on the second end surface 522.
A pair of plate members 424, 425 from the individual flow holes 205 and 206 for the first and second hard resins, and the soft resin supply, with the end of the soft resin supply recess 212 facing the upstream end extending in the width direction. A fifth flow surface 208, which commonly forms one surface of each of the bent portions 423 from the recess 212,
On both outer sides of the fifth flow surface 208, there are seventh and eighth contact surfaces 464 and 465 that are raised above the fifth flow surface 208.
The fourth mold member 82 is
The sixth and seventh flow surfaces 209, 211, which extend in the width direction and form the other surfaces of the pair of plate members 424 and 425, respectively.
A third raised portion 220 formed between the sixth and seventh flow planes 209 and 211 in the width direction above the sixth and seventh flow planes 209 and 211, and is a pair of plates. A third raised portion 220 forming an eighth flow surface 210 forming the other surface of the bent portion 423 between the members 424 and 425,
On both outer sides of the 6th and 7th flow surfaces 209 and 211, the divided surfaces are raised above the 6th to 8th flow surfaces 209 to 211 and abut on the 7th and 8th contact surfaces 464 and 465, respectively. It has 9th and 10th contact surfaces 467 and 468 to be formed.
A common flow hole 207 is formed by the fifth flow surface 208 and the sixth to eighth flow surfaces 209 to 211.
(B5) The soft resin for the bent portion 423 is guided to the common flow hole 207 by the first end surface 521 of the first mold member 78 and the soft resin supply recess 212 of the third mold member 81, and the plate member. A soft resin supply path 213 that is partially overlapped and laminated on one of the surfaces of 424 and 425 is defined.
(B6) Bolt insertion holes 520 and 516 parallel to the resin moving direction are formed in the first to fourth mold members 78, 79; 81 and 82, respectively.
In the first mold plate 74, screw holes 517 for fixing the first to third mold plates 74 to 76 are formed by screwing the bolts for inserting the bolt insertion holes 520 and 516 in a removable manner. Extrusion mold and
(C) A first connection device for connecting the first pipe and the second pipe.
A first outward flange is provided at the end of the first pipe.
The first outward flange is formed with a truncated cone-shaped first inclined surface that is radially inward toward the inward side of the pipe shaft 238a of the first pipe.
A second outward flange facing the first outward flange is provided at the end of the second pipe.
The second outward flange is formed with a truncated cone-shaped second inclined surface that is radially inward toward the inward side of the pipe shaft 238b of the second pipe.
The first outward flange is also formed with a first sealing contact surface 239 facing the second outward flange over the entire circumference in the circumferential direction.
The second outward flange is also formed with a second seal contact surface 241 capable of facing the first outward flange and abutting the first seal contact surface 239 over the entire circumference in the circumferential direction.
A first cover body surrounding the first and second outward flanges is provided.
The first cover body has a pair of first and second cover body portions formed in a half shape.
The first and second inclined surfaces are in contact with the inner surfaces of the first and second cover body portions, and the first and second inclined surfaces are in contact with each other.
The first and second cover body portions are tightened by the first tightening means in a direction close to each other intersecting the first straight line, and the first and second sealing contact surfaces 239 and 241 are brought into contact with each other to seal. The first connection device, which is characterized by achieving
(D) A soft resin extruder having a third pipe and supplying the molten soft resin from the third pipe,
(E) A fourth pipe having a pipe shaft on a second straight line common to the pipe shaft of the third pipe, and
(F) A second connecting device for connecting the third pipe and the fourth pipe.
A third outward flange is provided at the end of the third pipe.
The third outward flange is formed with a truncated cone-shaped third inclined surface that is radially inward toward the inward side of the pipe axis of the third pipe.
A fourth outward flange facing the third outward flange is provided at the end of the fourth pipe.
The fourth outward flange is formed with a truncated cone-shaped fourth inclined surface that is radially inward toward the inward side of the pipe axis of the fourth pipe.
The third outward flange is also formed with a third sealing contact surface facing the fourth outward flange over the entire circumference in the circumferential direction.
The fourth outward flange is also formed with a fourth seal contact surface that faces the third outward flange and can abut the third seal contact surface over the entire circumference in the circumferential direction.
A second cover body surrounding the third and fourth outward flanges is provided.
The second cover body has a pair of third and fourth cover body portions formed in a half shape.
The third and fourth inclined surfaces are in contact with the inner surfaces of the third and fourth cover body portions.
The third and fourth cover body portions are tightened by the second tightening means in a direction close to each other intersecting the second straight line, and the contact surfaces for the third and fourth seals abut to achieve the seal. With the second connection device
(G) Spherical pipe joint
A male thread is formed at the end of the fourth pipe opposite to the end provided with the fourth outward flange.
(G1) A connecting pipe whose outer surface has a first end portion of a spherical surface and a first pipe portion connected to the first end portion, and the outer diameter of the spherical surface at the end portion is larger than the outer diameter of the first pipe portion. When,
(G2) The screw of the fourth pipe has an insertion hole having an inner diameter less than the outer diameter of the spherical surface at the end of the connecting pipe through which the first pipe portion is inserted, and the inner surface surrounding the end of the spherical surface is a spherical surface. Includes a spherical pipe joint characterized by having a cap nut with a female thread that is removable and screwed into.
(H) An extrusion molding apparatus for a flat corner material, wherein the connecting pipe is connected to a third mold member 81 and connected to a soft resin supply recess 212.

The hard resin from the hard resin extruder is supplied from the first pipe to the common supply flow hole 204 of the first mold plate 74 of the extrusion molding die via the second pipe connected by the first connecting device. .. At the same time, the soft resin from the soft resin extruder passes through the fourth pipe connected by the second connecting device from the third pipe, and further from the spherical pipe joint through the connecting pipe, to the third mold plate 76. 3 It is supplied to the soft resin supply recess 212 formed in the mold member 81, and therefore to the soft resin supply path 213.

Due to the function of the spherical pipe joint, even if the axis of the fourth pipe and the connecting pipe is inclined in one plane, the soft resin can be continuously supplied at all times. Therefore, the extrusion molding mold and the soft resin extruder Relative displacement with and is allowed, which, in combination with the use of the first and second connecting devices, facilitates the installation work of the hard resin extruder and extrusion mold as well as the soft resin extruder.

(60) As shown in FIGS. 71 and 72,
A plurality of (for example, 2 or 3 or 4 or more) straight circles in which bent portions are connected by a soft resin over a gap between a pair of hard plate members supplied from an extrusion mold are arranged one above the other. A cooling and flattening device for flat corner materials that is wound around a columnar roller to cool and flatten.

According to the cooling flattening device 91, the flat corner material 80 can be cooled and flattened at the same time with a simple configuration.

The background technology will be described.
As described above, the applicant proposes the corner material used for the wall surface of the building and the corner material attached to the outside corner and the inside corner in the actual fairness 5-13855 (Patent Document 1) as described above. In producing such corner materials, it is desired to improve the quality and the productivity.

According to Japanese Patent Application Laid-Open No. 2010-105188 (Patent Document 2b), a thermoplastic resin sheet extruded from a die is wound between a first roll and a second roll in order to obtain an optical sheet having high surface smoothness. After being introduced between the mirror-surfaced metal belt and the third roll arranged to face the first roll via the belt, it is cooled while being conveyed between the third roll and the belt and peeled off from the belt. Disclose the configuration to be used. Japanese Patent Application Laid-Open No. 2004-127429 (Patent Document 3b) discloses a configuration in which tension is applied by a tension roller while being wound around a heating roller and heated in order to eliminate the curl habit of the cover sheet for an optical disc. In all of these Patent Documents 2 and 3, the flat corner material from the extrusion molding die cannot be sufficiently cooled, and the pressure for flattening the flat corner material is insufficient.

The present invention provides an improved cooling and flattening device for flat corner materials that can ensure cooling and flattening after extrusion molding, improve quality, and increase productivity in producing flat corner materials. To do.

(60a) As shown in FIGS. 71-76 and 86-88,
A flat corner material for cooling and flattening a flat corner material 80 from an extrusion mold, in which a pair of plate members 424 and 425 made of hard resin are connected by a flexible bending portion 423 made of soft resin. In the cooling flattening device
(A) The main body of the device and
(B) A plurality of rollers that are right-cylindrical, have horizontal and parallel rotation axes, and each rotation axis is sequentially arranged from top to bottom, and is a flat corner material from an extrusion die. The 80 is a roller wound around a plurality of these rollers, and
(C) A support that rotatably supports each roller and
(D) A rail that is vertically extended to the main body of the apparatus and guides at least some of the supports so as to be vertically displaceable.
(E) A motor attached to the main body of the apparatus and rotationally driving at least one of the rollers.
(F) Cooling of a flat corner material provided on the main body of the apparatus, which includes a pressurizing means for raising and lowering a support by screw drive to pressurize and release the corner material between each roller. Flattening device.

(60b) As shown in FIGS. 71 and 76.
A flat corner material for cooling and flattening a flat corner material 80 from an extrusion mold, in which a pair of plate members 424 and 425 made of hard resin are connected by a flexible bending portion 423 made of soft resin. In the cooling flattening device
(A) The main body of the device and
(B) The first to third rollers which are right-cylindrical, have horizontal and parallel rotation axes, and each rotation axis is sequentially arranged from top to bottom, from an extrusion die. The flat corner material 80 is wound around a plurality of the first to third rollers, and the first to third rollers
(C) An upper support that rotatably supports the first roller and
(D) A lower support that rotatably supports the third roller and
(E) A rail that is vertically extended to the main body of the apparatus and guides the upper and lower supports so as to be vertically displaceable.
(F) A motor attached to the main body of the device to rotate and drive the second roller,
(G) It has a first screw rod provided in the main body of the apparatus and extends vertically, and the first screw rod is manually rotated around the axis of the first screw rod to drive the upper support by screw. A first pressurizing means that moves up and down to pressurize and release the cornering material between the first and second rollers, and
(H) It has a second screw rod provided in the main body of the apparatus and extends vertically, and the second screw rod is manually rotated around the axis of the second screw rod to drive the lower support by screw. A flat corner material cooling and flattening apparatus comprising: ascending / descending, a second pressurizing means for pressurizing and depressurizing the cornering material between the second and third rollers.

The flat corner material 80 from the extrusion mold is wound around one or more of the first to third rollers in the circumferential direction, for example, about half a circumference, and the first roller is manually operated by the first pressurizing means. The upper support that rotatably supports the above is guided along the rail to pressurize between the first and second rollers, and the pressurizing force can be adjusted and set, and the pressurization is released to release the first and second rollers. Similarly, by manually operating the second pressurizing means, the lower support that rotatably supports the third roller is guided along the rail so that it can be taken out from between the second rollers. Pressurization is performed between the third rollers, the pressing force can be adjusted and set, and the pressurization can be released and taken out from between the second and third rollers.

The pressing force between the first and second rollers and the pressing force between the second and third rollers can be individually adjusted and set independently by the first and second pressurizing means, so that the flat corners can be used. The pressing force of the material 80 may be changed in the order from upstream to downstream in the winding moving direction, and may be sequentially adjusted and set, for example, from a small value to a large value, or vice versa.

The first to third rollers have a circular cross section perpendicular to the axis and have a regular cylindrical shape or a straight columnar shape having a uniform diameter in the axial direction. In the present specification, these configurations are summarized for convenience. It is sometimes called a right-angled cylinder. The diameters of the first to third rollers may be the same, but may be different from each other. Not only three of these rollers but also four or more of these rollers may be provided.

In another embodiment, a single screw rod extending up and down is provided on the device body so that it can be manually rotated around the axis of the screw rod, and the screw orientation of the screw rod is set above and below where the screw rod is screwed. Each of the supports is formed in reverse, whereby the screw rod is manually rotated in one direction and vice versa to screw drive the upper and lower supports, and the first and third rollers. Is raised and lowered in the direction of mutual proximity and the direction of mutual separation, and the flat corner material is pressurized and released between the first and second rollers and between the second and third rollers.
Any one of the first to third rollers may be rotationally driven by a motor.

(60c) As shown in FIGS. 76 (1) and (2),
A guide member 513 interposed between the extrusion die and the roller in which the flat corner material from the extrusion die of the rollers is first wound.
The guide member 513 has an overall width on the surface of the flat corner material plate member 424 and 425 on the side where the bent portion 423 is not arranged, that is, on the surface of the plate member 424 and 425 on the side where the bent portion 423 is not laminated. It is characterized in that the corner material is guided while being bent at a substantially right angle with a small radius of curvature in a virtual plane along the moving direction while being in contact with each other.

In other embodiments of the embodiment, as shown in FIG. 76 (3).
The guide member 513 guides a flat corner material having a structure different from the above-mentioned flat corner material, in which the bent portion 423 is partially laminated on one surface of the plate members 424 and 425. In the flat corner material having a configuration different from that of the above flat corner material, one surface of the pair of plate members 424 and 425 and one surface of the bent portion 423 exist in a virtual one plane, and the plate members 424 and 425 are present. It is a flat corner material having a structure in which the bent portion 423 connects the end faces of the plate members 424 and 425 over a gap between the plate members 424 and 425 so that one surface is continuous via the bent portion 423. With respect to the flat corner material having such a configuration, the guide member 513 is continuously provided via the surface on the side where the bent portion 423 of the plate member 424 and 425 is not arranged, that is, the bent portion 423 of the plate member 424 and 425. It guides the corner material while making full-width contact with the other surface on the opposite side of the one surface, bending the corner material approximately at right angles with a small radius of curvature in a virtual plane along the direction of movement. In the flat corner material, the relationship between the thickness D1 of the plate member 424, the thickness D2 of the plate member 425, the thickness D3 of the bent portion 423, and the distance D4 from the other surface of the bent portion 423 to the flat surface 535 of the guide member 513. Is D1 = D2 = D3 + D4.

Upstream from the two or more rollers such as the first to the third, the guide member 513 causes the plate members 424 and 425 of the flat corner material to move while contacting the curved guide surface of the guide member 513. The plate members 424 and 425 and the bent portion 423 are bent at substantially right angles with a small radius of curvature in a virtual plane along the moving direction. Therefore, even if the flat corner material supplied from the extrusion mold is distorted in the width direction and has wrinkles, it is corrected to a substantially flat shape. Therefore, the flatness of the flat corner material by the pressurization of the roller is ensured, and the quality is improved. Further, the guide member 513 makes contact with the surface of the plate member 424 and 425 on the side where the bent portion 423 is not arranged over the entire width, and brings the corner material substantially at right angles with a small radius of curvature in the virtual plane along the moving direction. Since the guide is guided while bending, it is possible to prevent problems such as peeling of the bent portion 423 made of soft resin from the plate members 424 and 425 made of hard resin.

(60d) (a) A guide roller which has a linear cylindrical shape, is horizontal and has a rotation axis parallel to the rotation axis of the roller, and is provided in the apparatus main body downstream of the roller.
(B) A guide roller support that rotatably supports the guide roller,
(C) A guide roller rail that is provided on the main body of the device and extends vertically to guide the guide roller support so as to be vertically displaceable.
(D) For the guide roller, which is provided in the main body of the apparatus and has another screw rod extending vertically, and the other screw rod is manually rotated around the axis of the other screw rod. It is characterized by including an elevating means for elevating and lowering the support by screw drive.

The flat corner material, which is pressurized by two or more rollers such as the first to third rollers, cooled and flattened, comes into contact with the outer peripheral surface of the guide roller to change the moving direction, and then follows. Is supplied to and pulled by a device, eg, a subsequent pick-up device. The guide roller is supported by a support for the guide roller, and the support for the guide roller is moved up and down by the elevating means along the rail for the guide roller. As a result, the flat corner material is supplied to a subsequent device such as a pick-up device in an optimum posture. By manually rotating the other screw rod, the elevating means displaces the guide roller support screwed to the other screw rod up and down, and supplies the flat corner material to the subsequent device. , Makes it easy to adjust and set in the optimum posture.

In still another embodiment of the present invention, the third mold plate 76 has a bent portion that is thinnest in the central portion in the width direction (horizontal direction in FIG. 66) as shown by the virtual line 423a in FIG. , The flow surface 210 may be formed so as to be inclined in an inverted V shape. As a result, when the corner material 25 is attached to a protruding corner such as a wall or a pillar of a building, a sharper corner can be formed.

FIG. 77 is a side view showing the first pipe 11 of the connecting device 5 of still another embodiment of the present invention, FIG. 78 is a view of the first pipe 11 as viewed from the upstream, and FIG. 79 is the first pipe. 11 is a view of 11 from the downstream. The same reference numerals are given to the parts corresponding to the above-described embodiments. The first pipe 11 is formed with a flow hole 277A whose cross section changes from a circular shape to an inverted V shape from upstream to downstream along the pipe shaft 238a. The cross-sectional shape on the downstream side of the flow hole 277A is substantially the same as the cross-sectional shape on the upstream side of the flow hole 278 of the second pipe 12 of the mold 4, and the end face on the upstream side of the second pipe 12 at this time is flat. It is shaped so as to be airtightly connected to the first pipe 11.

By adopting such a configuration, a softened resin is preliminarily formed in the mold 4 on the upstream side of the mold 4, the flow resistance in the mold 4 is reduced, and molding is performed with high accuracy. can do.

FIG. 80 is a side view showing the first pipe 11 of the connecting device 5 of still another embodiment of the present invention, FIG. 81 is a view of the first pipe 11 as viewed from the upstream, and FIG. 82 is the first pipe. 11 is a view of 11 from the downstream. The same reference numerals are given to the parts corresponding to the above-described embodiments. The first pipe 11 is formed with a flow hole 277B whose cross section changes from a circular shape to an inverted U shape from upstream to downstream along the pipe shaft 238a. The cross-sectional shape on the downstream side of the flow hole 277B is the same as the cross-sectional shape on the upstream side of the flow hole 278 of the second pipe 12 of the mold 4, and the end face on the upstream side of the second pipe 12 at this time is flat. It is configured to be airtightly connected to the first pipe 11.

By adopting such a configuration, a softened resin is preliminarily formed in the mold 4 on the upstream side of the mold 4, the flow resistance in the mold 4 is reduced, and molding is performed with high accuracy. can do.

FIG. 83 is a side view showing the first pipe 11 of the connecting device 5 of still another embodiment of the present invention, FIG. 84 is a view of the first pipe 11 as viewed from the upstream, and FIG. 85 is the first pipe. 11 is a view of 11 from the downstream. The same reference numerals are given to the parts corresponding to the above-described embodiments. The first pipe 11 is formed with a flow hole 277C whose cross section changes from circular to flat from upstream to downstream along the pipe shaft 238a. The cross-sectional shape on the downstream side of the flow hole 277C is the same as the cross-sectional shape on the upstream side of the flow hole 278 of the second pipe 12 of the mold 4, and the end face on the upstream side of the second pipe 12 at this time is flat. It is configured to be airtightly connected to the first pipe 11.

By adopting such a configuration, a softened resin is preliminarily formed in the mold 4 on the upstream side of the mold 4, the flow resistance in the mold 4 is reduced, and molding is performed with high accuracy. can do.

FIG. 86 is a front view showing a part of the cooling flattening device 91A of still another embodiment of the present invention. The same reference numerals are given to the parts corresponding to the above-described embodiments. The cooling flattening device 91 of the embodiment shown in FIGS. 71 and 72 described above is configured to include first to third rollers 215, 216, and 217 at the top and bottom, but other than the embodiment of the present invention. In the above embodiment, a cooling flattening device 91A including the first and second rollers 215 and 216 may be used. This makes it possible to simplify the configuration of the cooling flattening device 91A.

The cooling and flattening device 91A of the present embodiment does not include the above-mentioned third roller 217, and cools the flat corner material 80 using only two rollers, the first and second rollers 215 and 216, and sandwiches the flat corner material 80. It can be advantageously carried out when pressure is applied in the state to flatten. The guide member 513 is arranged at or near the height position between the first roller 215 and the second roller 216. A pair of guide protrusions 538 are projected from the guide member 513 as described above. By these guide protrusions 538, the flat corner material 80 supplied from the mold 73 is guided to go straight while preventing the flat corner material 80 from being displaced in the width direction.

The flat corner material 80 that has passed on the guide member 513 and has passed between the pair of guide protrusions 538 is wound around the second roller 216 arranged below from the lower side, and is between the first roller 215 and the second roller 216. Is wound from the upstream side on the first roller 215, and is guided to the guide roller 191 via the upper part of the first roller 215.

In the present embodiment, the cooling flattening device 91A including the first and second rollers 215 and 216 is a flat corner material as compared with the cooling flattening device 91 of the embodiment shown in FIGS. 71 and 72 described above. Since the contact period of the flat corner material 80 with the rollers can be shortened, the temperature drop due to the contact of the flat corner material 80 with the rollers can be reduced, and optimum cooling and cooling and thickness depending on the material and thickness of the flat corner material 80 can be reduced. Flattening can be achieved.

FIG. 87 is a front view showing a cooling flattening device 91B of still another embodiment of the present invention. The same reference numerals are given to the parts corresponding to the above-described embodiments. The cooling flattening device 91B of the present embodiment is common to the above-described embodiment shown in FIG. 86 in that the first and second rollers 215 and 216 are used instead of the third roller 217, and the guide member 513 is used. And the difference is that the pair of guide protrusions 538 is not used.

The flat corner material 80 supplied from the mold 73 is wound around the second roller 216 arranged below from the lower side, and passes between the first roller 215 and the second roller 216 from the downstream side to the upstream side. Then, it is wound around the first roller 215 from the upstream side and guided to the guide roller 191 via the upper part of the first roller 215.

Such a cooling flattening device 91B has a roller of the flat corner material 80 as compared with the cooling flattening device 91 of the embodiment shown in FIGS. 71 and 72, similarly to the embodiment shown in FIG. 86 described above. Since the contact period of the flat corner material 80 can be shortened, the temperature drop due to the contact of the flat corner material 80 with the rollers can be reduced, and optimum cooling and flattening can be realized according to the material and thickness of the flat corner material 80. This can be particularly advantageous for the flat corner material 80 of a material and thickness that does not require the use of the guide member 538 and the pair of guide protrusions 538.

FIG. 88 is a front view showing the cooling flattening device 91C of still another embodiment of the present invention. The same reference numerals are given to the parts corresponding to the above-described embodiments. The cooling flattening device 91C of the present embodiment is common to the above-described embodiment shown in FIG. 86 in that the first and second rollers 215 and 216 are used instead of the third roller 217, and the guide member 513 is used. And the difference is that the pair of guide protrusions 538 is not used.

The flat corner material 80 supplied from the mold 73 is wound around the first roller 215 arranged below from the upper side, and passes between the first roller 215 and the second roller 216 from the downstream side to the upstream side. Then, it is wound around the first roller 215 from the upstream side and guided to the guide roller 191 via the upper part of the first roller 215.

Such a cooling flattening device 91C has a roller of a flat corner material 80 as compared with the cooling flattening device 91 of the embodiment shown in FIGS. 71 and 72, similarly to the embodiment shown in FIG. 86 described above. Since the contact period of the flat corner material 80 can be shortened, the temperature drop due to the contact of the flat corner material 80 with the rollers can be reduced, and optimum cooling and flattening can be realized according to the material and thickness of the flat corner material 80. This can be particularly advantageous for the flat corner material 80 of a material and thickness that does not require the use of the guide member 538 and the pair of guide protrusions 538.

(61) In the extrusion molding apparatus 1, 61, 72,
(A) Having the first pipe 11, the first pipe shaft 238a of the first pipe 11 extends laterally.
The molten synthetic resin is supplied from the first pipe 11 and
The shape of the outlet end surface 701 in the virtual plane perpendicular to the first pipe shaft 238a downstream from which the resin of the first pipe 11 is guided is substantially circular with the first pipe shaft 238a as the center.
The first sealing contact surface 239 (FIG. 9); 241e (FIG. 9), which is connected to the outlet end surface 701 of the first pipe 11 and faces outward in the axial direction of the first pipe shaft 238a over the entire circumference of the first pipe shaft 238a in the circumferential direction. Extruder 2 on which FIG. 14) is formed and
(B) Extrusion molding dies 4, 60, 73, 681.
(B1) The second pipe 12 is provided, and the second pipe shaft 238b of the second pipe 12 is on a horizontally extending straight line common to the first pipe shaft 238a.
(B2) The shape of the inlet end face 702 in the virtual plane perpendicular to the upstream second pipe shaft 238b to which the resin of the second pipe 12 is guided is such that the outlet end face 701 of the first pipe 11 is centered on the second pipe shaft 238b. It is a circle with almost the same inner diameter as the shape of
(B3) The first sealing contact surfaces 239, 241e are continuous with the inlet end surface 702 of the second pipe 12 and face the first sealing contact surfaces 239, 241e over the entire circumference of the second pipe shaft 238b in the circumferential direction. Second sealing contact surfaces 241 and 239e are formed so as to be able to contact the surface.
(B4) The resin from the inlet of the second pipe 12 has the same cross section as the irregularly shaped long molded products 25, 66, 80, 672 that are extruded through the recesses 704 and 722 that are recessed from the inlet toward the downstream. Guided by flow holes 277, 278; 416; 417; 204-207 having a cross-sectional shape on the way from the shape or its recesses 704, 722 to the same cross-sectional shape.
(B5) The cross-sectional area of the recess 704 and the flow holes 277, 278; 416, 417; 204 to 207 perpendicular to the second pipe shaft 238b is formed smaller from the inlet as it goes downstream from the inlet. Molds 4, 60, 73, 681 and
(C) Connecting devices 5 and 13 that connect the first pipe 11 and the second pipe 12 to each other by contacting the first and second sealing contact surfaces 239, 241e; 241 and 239e to achieve a seal. An extrusion molding apparatus comprising.

In the connection portion of the coextrusion molding apparatus of the prior art (Japanese Patent Laid-Open No. 1-28052), a pair of outward flanges formed on the adapter side and the die side of the connecting pipe are fastened by a quick clamping means. The quick clamping means has a pair of cover body portions having a semi-arc-shaped substantially U-shaped cross section divided in two in the circumferential direction, and each cover body portion covers the facing outward flange from the outside in the radial direction. , One end in the circumferential direction of each cover body portion is connected by a hinge, and the other end in the circumferential direction is fastened with a bolt. Three resin passages having the same inner diameter are formed on the adapter side and the die side of the connecting pipe, and each resin passage extends in a straight cylindrical shape.

A major problem with the prior art (Japanese Patent Laid-Open No. 1-28052) is that the quick clamping means for fastening the flanges allows the pair of outward flanges, and thus the adapter side and the die side of the connecting pipe, to be arbitrarily aligned around the axis on a straight line. Since the angle can be displaced by an angle, it is extremely difficult to connect the end faces of each of the three resin passages on the adapter side and the die side in an accurate manner. The major problems (i), (ii), and (iii) posed by this configuration will be described.

(I) If the adapter side and the die side of the connecting pipe are undesirably displaced from each other around the axis on the straight line, the end faces of the three resin passages on the adapter side in the connecting pipe and the die side. When the flanges are fastened in a state where the end faces of the three resin passages do not exactly match and are displaced around the straight line, the resin collides with and stays on the end faces exposed in those resin passages. However, it is impossible to smoothly guide the inside of the three resin passages from the adapter side to the die side due to flow turbulence or the like. Therefore, according to the configuration of Reference Document 2, the resin stays on the way from the three resin passages on the adapter side to the three resin passages on the die side, resulting in resin burning and staying. The resin that had been used becomes a foreign substance and is mixed into the product, and the quality of the product cannot be improved, resulting in deterioration of the quality.

(Ii) As described above, in Patent Document 2, regardless of the configuration of the quick clamp means, the adapter side and the die side of the connecting pipe are accurately positioned around the straight line, and the adapter side and the die side are each 3 Since the end faces of the resin passages of the book must be connected in an exact match, the work procedure for connecting the adapter side and the die side of the connecting pipe becomes extremely complicated, and accurate positioning connection is almost impossible. is there.

(Iii) As in the above-mentioned problem (ii), the adapter side and the die side of the connecting pipe must be accurately positioned and connected around the straight line, so that the quick clamping means having a simple configuration cannot be used. , The conventional technique (Japanese Patent Laid-Open No. 1-28052) cannot be realized.
Therefore, the purpose of the extrusion molding apparatus (61) is to manufacture a long molded product such as a corner material, even if a pair of pipes through which the molten resin is guided are angularly displaced from each other around the axis. It is possible to connect pipes without stagnation, thereby improving the quality of long molded products, increasing productivity, and providing an extrusion molding apparatus with excellent connection workability. ..

According to the present invention, deterioration of product quality can be prevented. In the present invention, the shape of the outlet end surface 701 of the first pipe 11 in the extruder 2 is a substantially circular shape centered on the first pipe shaft 238a, and the second pipe in the extrusion molding molds 4, 60, 73, 681. Since the shape of the inlet end surface 702 of 12 is substantially the same as the shape of the outlet end surface 701 centered on the first pipe shaft 238a and the second pipe shaft 238b on one axis, the resin from the first pipe 11 is the first. The outlet end face of the first pipe 11 and the inlet end face of the second pipe 12 do not come into contact with each other, so that there is no retention or collision, no flow turbulence, etc. 2 It is smoothly guided to the pipe 12.

In the present invention, the resin from the inlet of the second pipe 12 has the same cross-sectional shape as the irregularly shaped long molded products 25, 66, 80, 672 that are extruded through the recesses 704, 722 or the recesses 704, 722. The recesses 704, 722 and the flow holes 277 are guided to the flow holes 277, 278; 416, 417; 204 to 207 having a cross-sectional shape on the way from the same cross-sectional shape to the same cross-sectional shape, or a cross-sectional shape similar to the same cross-sectional shape. Since the cross-sectional area of 278; 416; 417; 204 to 207 perpendicular to the second pipe shaft 238b is formed smaller from the inlet as it goes downstream from the inlet, the resin guided in the second pipe 12 is From the inlet to the flow holes 277, 278; 416, 417; 204 to 207, there is no retention or collision, no flow turbulence or the like occurs, and the inside of the second pipe 12 is smoothly guided.

The irregularly shaped long molded products 25, 66, 80, 672 have a cross-sectional shape other than a perfect circle or a plate shape, and the molded products obtained from the extrusion molding dies 4, 60, 73, 681 are in a natural state. , Has a cross-sectional shape that warps perpendicular to its longitudinal direction and undesirably deforms, such as typically V-shaped or U-shaped.

The first sealing contact surface 239 (FIG. 9); 241e (FIG. 14) of the first pipe 11 is connected to the outlet end surface 701, and is the axis of the first pipe shaft 238a over the entire circumference of the first pipe shaft 238a in the circumferential direction. Facing outward in the direction, the second sealing contact surfaces 241 and 239e are continuous with the inlet end surface 702 of the second pipe 12, and the first sealing contact surface 239 covers the entire circumference of the second pipe shaft 238b in the circumferential direction. , 241e and abuts on the first sealing contact surfaces 239 and 241e, so that there are no steps or recesses in which the supplied resin stays in the middle of the pipe shaft 238a and the pipe shaft 238b.

In this way, the resin does not stay from the first pipe 11 to the flow holes 277, 278; 416, 417; 204 to 207. Therefore, resin burning does not occur, the retained resin does not become a foreign substance and is mixed into the product, the quality of the product can be improved, and deterioration of the quality can be prevented.

As described above, the shape of the outlet end surface 701 of the first pipe 11 and the shape of the inlet end surface 702 of the second pipe 12 in the extrusion molding dies 4, 60, 73 are the first and second on the straight line. Since it is the same circular shape centered on the tube shafts 238a and 238b, the total amount of resin from the first tube 11 is extruded regardless of the mutual angle of the first tube 11 and the second tube 12 around the straight line. It is guided to the flow holes 277, 278; 416, 417; 204 to 207 through the second pipe 12 of the molding dies 4, 60, 73 without staying in the middle. Therefore, when connecting by the connecting devices 5 and 13, it is not necessary to accurately position the first pipe 11 and the second pipe 12 around the straight line. Therefore, the work procedure of connecting the first pipe 11 and the second pipe 12 is simplified.

Since it is not necessary to accurately position and connect the first pipe 11 and the second pipe 12 around the first and second pipe shafts 238a and 238b on the straight line, the first and second pipes 11 and 12 are connected. The configuration of the connecting devices 5 and 13 to be connected can be simplified, and the present invention can be easily realized.

According to the present invention, the resin from the inlet of the second pipe 12 is guided to the flow holes 277, 278; 416, 417; 204 to 207 through the recesses 704 and 722 recessed from the inlet toward the downstream. , The cross-sectional area of the recess 704 and the flow holes 277, 278; 416, 417; 204 to 207 is continuously formed to be small from the inlet, so that the resin from the inlet is guided to the surface of the recesses 704, 722. Therefore, the flow of the resin is smooth, and resin deterioration is unlikely to occur. FIG. 20 (4) described later shows this effect.

(62) In the extrusion molding apparatus 1, 61, 72,
(A) Having the first pipe 11, the first pipe shaft 238a of the first pipe 11 extends laterally.
The molten synthetic resin is supplied from the first pipe 11 and
The shape of the outlet end surface 701 in the virtual plane perpendicular to the first pipe shaft 238a downstream from which the resin of the first pipe 11 is guided is substantially circular with the first pipe shaft 238a as the center.
The first sealing contact surface 239 (FIG. 9); 241e (FIG. 9), which is connected to the outlet end surface 701 of the first pipe 11 and faces outward in the axial direction of the first pipe shaft 238a over the entire circumference of the first pipe shaft 238a in the circumferential direction. Extruder 2 on which FIG. 14) is formed and
(B) Extrusion molding dies 4, 60, 73, 681.
(B1) The second pipe 12 is provided, and the second pipe shaft 238b of the second pipe 12 is on a horizontally extending straight line common to the first pipe shaft 238a.
(B2) The shape of the inlet end face 702 in the virtual plane perpendicular to the upstream second pipe shaft 238b to which the resin of the second pipe 12 is guided is such that the outlet end face 701 of the first pipe 11 is centered on the second pipe shaft 238b. It is a circle with almost the same inner diameter as the shape of
(B3) The first sealing contact surfaces 239, 241e are continuous with the inlet end surface 702 of the second pipe 12 and face the first sealing contact surfaces 239, 241e over the entire circumference of the second pipe shaft 238b in the circumferential direction. Second sealing contact surfaces 241 and 239e are formed so as to be able to contact the surface.
(B4) The resin from the inlet of the second pipe 12 has the same cross-sectional shape as the long molded products 25, 66, 80, 672 that are extruded through the recesses 704 and 722 that are recessed from the inlet toward the downstream. It is guided from the recesses 704 and 722 to flow holes 277, 278; 416; 417; 204 to 207 having a cross-sectional shape on the way to the same cross-sectional shape.
(B5) The cross-sectional area of the recess 704 and the flow holes 277, 278; 416, 417; 204 to 207 perpendicular to the second pipe shaft 238b is formed smaller from the inlet as it goes downstream from the inlet.
(B6) The recess 704 of the second pipe 12 is
An arc surface 705 formed by a rotating body around the second pipe shaft 238b of the second pipe 12 and having a smaller diameter toward the downstream, and
Extrusion molding dies 4, 60, 73, 681, which are continuous with the downstream end of the arcuate surface 705 and defined by a plane 706 substantially perpendicular to the second pipe shaft 238b.
(C) Connecting devices 5 and 13 that connect the first pipe 11 and the second pipe 12 to each other by contacting the first and second sealing contact surfaces 239, 241e; 241 and 239e to achieve a seal. An extrusion molding apparatus comprising.

In particular, a dent 7 recessed toward the downstream for guiding the resin from the entrance.
Since 04 is defined by the arc surface 705 and the flat surface 706 formed by the rotating body, it does not take time and effort for processing. For example, the second pipe 12 can be mounted on the spindle and driven to rotate, and the cutting can be performed while moving the cutting tool in parallel with the axis of the spindle, which is easy to perform. Although it takes some time to process, milling is also conceivable. In milling, the second pipe 12 is fixed to a movable table, and the table is moved laterally with respect to the axis of the rotating shaft to which the rotating blade is attached, and the cutting edge of the rotating blade is used for cutting. FIG. 18 (2) described later shows this effect.

Since the resin supplied to the inlet of the second pipe 12 is guided to the arcuate surface 705 and the flat surface 706, which become smaller in diameter as it goes downstream, the resin in the recess 704 does not stay and the flow holes 277, 278; 416, 417; It is smoothly guided to 204 to 207, and deterioration of product quality is prevented.

Since the recess 704 is defined by the arcuate surface 705 and the flat surface 706, the flow rate of the resin guided to the flow holes 277, 278; 416, 417; 204 to 207 faces the arcuate surface 705 and / or the flat surface 706. The upstream ends 278a (FIG. 21) and 416a (FIG. 52) of 277, 278; 416, 417; 204 to 207 can be adjusted by grinding the portion having poor resin fluidity, and the flow holes 277, 278; 416, 417; 204 It is easy to adjust the flow rate and flow velocity to ~ 207.

The recess 704 of the second tube 12 may be formed by a part of a sphere or a cone, or may be formed by a plurality of planes 711 to 716 arranged in the circumferential direction as shown in FIG. 18 (2) described later. Good.

(63) The arc surface 705 is composed of a plurality of individual arc surfaces 705a to 705c (see FIG. 21 (5)) having different radii or center positions, and each individual arc surface 705a to 705c has a recess in which the resin stays. It is characterized by being connected without any problems.

(64) The tangent line 708 (FIGS. 21 and 52) at the most downstream end of the arcuate surface 705 is continuous with the plane 706.
Reference numerals 705a to 705c may be collectively indicated by 705.

According to the present invention, in the recess 704, the tangent line 708 of the arcuate surface 705 is continuous with the plane 706, so that the resin in the recess 704 is in a laminar flow state to the flow holes 277, 278; 416, 417; 204 to 207. , Will be guided more smoothly. In another embodiment of the present invention, the most downstream end of the arcuate surface 705 may be continuous with the plane 706 at a position upstream of the resin along the second tube shaft 238b and above the tangent line 708, or at any other position. May be continuous with the plane 706.

(65) The upstream ends of the flow holes 277, 278; 416, 417; 204 to 207 face the arcuate surface 705.

Upstream end 2 of flow holes 277, 278; 416, 417; 204-207
The 78a is formed so as to face the arcuate surface 705 and not to the flat surface 706, whereby the resin supplied from the extruder does not stay in the flow holes 277, 278; 416, 417; It is guided more smoothly to 204 to 207.

The present invention also includes a configuration in which at least a part of the upstream ends 278a of the flow holes 277, 278; 416, 417; 204 to 207 are formed so as to face the plane 706.

(66) The flow holes 277, 278; 416, and 417 are characterized by having a shape for extruding a corner material having a V-shaped or U-shaped cross section at right angles to the axis, and the upstream end thereof is as described above. Facing the arc surface 705.

According to the present invention, the upstream ends 278a of the V-shaped and U-shaped flow holes 277, 278; 416, 417 face the arcuate surface 705, so that the resin in the recess 704 smoothly flows through the flow holes 277, 278; 416. It is guided downstream in 417.

The bent portions 155, 333 and their vicinity of the V-shaped and U-shaped corner members 25 and 66 correspond to the portions 718 (FIG. 21) and 719 (FIG. 52) at the upstream end 278a of the flow holes 277, 278; 416, 417. To do. In order to obtain the desired thickness of the V-shaped and U-shaped corner materials 25 and 66, the flow rate of the resin guided to the flow holes 277, 278; 416 and 417 is accurate, especially in the vicinity of the portions 718 and 719. It must be set to so that there is no excess or deficiency of resin. In the present invention, the flow rate of the resin is convenient because the flow rate can be easily adjusted because the flow holes 277, 278; 416, and 417 may be ground at the upstream end 278a facing the arcuate surface 705 and / or the flat surface 706.

(67) Long molded products 25, 66, 80, 672 arranged downstream of the extrusion dies 4, 60, 73, 681 and extruded from the extrusion dies 4, 60, 73, 681. Sizing molds 9, 34, 674, 684 and

Arranged downstream of the sizing dies 9, 34, 674, 684, the extruded product 675 from the sizing dies 9, 34, 674, 684 is applied with a force in the direction opposite to the warp to correct the warp. Including warp correction means 688
The connecting devices 5 and 13 are characterized in that the second pipe 12 is connected to the first pipe 11 by setting the angular displacement around the straight line.

According to the present invention, extrusion molding from sizing dies 9, 34, 674, 684 and sizing dies 9, 34, 674, 684 are performed downstream of extrusion dies 4, 60, 73, 681. A warp correction means 688 for correcting the warp by applying a force in the direction opposite to the warp is arranged on the product 675.
Since the connecting devices 5 and 13 connect the second pipe 12 to the first pipe 11 by setting the angular displacement around the straight line, the following excellent effect is achieved.

That is, with respect to the first pipe 11 of the extruder 2, the second pipe 12 of the extrusion molding dies 4, 60, 73, 681 and therefore the sizing dies 9, 34, 674, 684 are placed on the straight line. Around the first and second pipe shafts 238a and 238b of the above, an angular displacement can be set and connected by an arbitrary angle, for example, 90 °. Therefore, as will be described later, in order to facilitate the correction of the warp of the extruded product, the extrusion molding dies 4, 60, 73, 681 have a posture in which the deformed extruded product warps, for example, in the horizontal plane of FIG. The first and second pipes 11 and 12 are connected around the first and second pipe shafts 238a and 238b on a horizontal straight line by adjusting the displacement by 90 ° from FIG. 90 of the prior art, for example. can do. As a result, it is possible to solve the problem of competing for the installation location of the warp straightening means 688, so that there is no limit to the warp correction of the extruded product 675. In this way, the warp of the extruded product can be reliably corrected and the quality can be improved.

(68) The connecting devices 5 and 13 are characterized in that the second pipe 12 is connected to the first pipe 11 by setting a 90 ° angular displacement around the straight line.

According to the present invention, as described above in connection with FIG. 91, the second pipe 12 of the extrusion molding dies 4, 60, 73, 681 is sized with respect to the first pipe 11 of the extruder 2. Since the molds 9, 34, 674, and 684 are connected around the straight line by setting, for example, a 90 ° angular displacement, the problem of the installation location of the warp correction means 688 can be solved. There is no limit to the correction of warpage of the extruded product 675.

(69) Connection devices 5 and 13
(C1) A first outward flange 221 provided at the end of the first pipe 11 and having contact surfaces 239, 241e for the first seal, and
(C2) A second outward flange 223 provided at the end of the second pipe 12 so as to face the first outward flange 221 and having second sealing contact surfaces 241 and 239e.
(C3) Tightening of the first and second outward flanges 221 and 223 in a direction close to each other to achieve sealing by abutting the first and second sealing contact surfaces 239, 241e; 241 and 239e. It is characterized by having means 225.

(70) The connecting devices 5 and 13 are
(C1) A first outward flange 221 provided at the end of the first pipe 11.
A truncated cone-shaped first inclined surface 222 that is radially inward as it is directed inward of the pipe shaft 238a of the first pipe 11.
The first outward flange 221 having the first sealing contact surfaces 239 and 241e facing the outside of the pipe shaft 238a of the first pipe 11 over the entire circumference of the first outward flange 221 in the circumferential direction.
(C2) A second outward flange 223 provided at the end of the second pipe 12 so as to face the first outward flange 221.
A truncated cone-shaped second inclined surface 224 that goes inward in the radial direction toward the inside of the pipe shaft 238b of the second pipe 12.
The second sealing contact surface that faces the outer side of the pipe shaft 238b of the second pipe 12 and can abut the first sealing contact surfaces 239 and 241e over the entire circumference of the second outward flange 223 in the circumferential direction. A second outward flange 223 with 241 and 239e, and
(C3) A cover body 226 surrounding the first and second outward flanges 221 and 223.
It has a pair of cover body portions 227 and 228 formed in half.
The inner surfaces of the cover body portions 227 and 228 are contacted with the cover body 226 to which the first and second inclined surfaces 222 and 224 are in contact with each other.
(C4) Tightening means 225
The cover body portions 227 and 228 are tightened in the direction close to each other so as to intersect the straight lines, and the first and second sealing contact surfaces 239, 241e; It is characterized by having.

According to the present invention, as will be described later in relation to the sealing recess 237 and the sealing cylinder 240 of FIGS. 4 to 9 and the sealing cylinder 240e and the sealing recess 237e of FIG. 14, the sealing function As a matter of course, resin leakage is not possible, and resin retention is not formed. Therefore, problems such as discoloration of the extruded product and resin burning do not occur, and the quality of the long molded product can be improved. ..
The first pipe 11 may have a cylindrical shape.

According to the present invention, since the first pipe 11 is cylindrical, that is, the outlet of the extruder 2 is circular, the resin has the same shape as the second of the extrusion molding dies 4, 60, 73. It will be supplied to the pipe 12, and the flow is straightforward. There is also an effect that the maintainability of the first pipe 11 is good.

In each of the embodiments of the present invention shown in FIGS. 77, 80, and 83 described above, an excessive pressure acts on the resin in the first tube 11, and the movement time in the first tube 11 becomes longer. There is a problem that the maintainability is poor because it is difficult to polish the inner surface of the plastic. In the present invention, these problems are solved by forming the first tube 11 in a cylindrical shape. The second tube 12 may also be cylindrical.

(71) As shown in FIGS. 16, 48, 52 and the like.
The flow holes 277: 416 of the mold 4:60 for extruding the corner material 25:66 such as V-shaped or U-shaped with a bent cross section at right angles to the axis are formed in an inverted V-shaped or inverted U-shaped shape that is convex upward. An extrusion die 4:60 for a corner material 25:66 characterized by being arranged in a shape.

Water droplets, foreign substances, etc. easily slip and fall from the surface of the corner material and do not adhere, improving the quality of the corner material. Even in a configuration in which water is sprayed or passed through the water tank to cool the corner material downstream of the sizing device, the water is likely to fall and does not adhere thereafter.

(72) As shown in FIGS. 16 and 17-30.
In the extrusion die 4 for the corner material 25 (FIG. 31) having a pair of plate members 152, 153 and a bent portion 155 connecting these plate members 152, 153.
A first mold member 21 having a flow surface 262 and 263 forming an inner surface of each pair of plate members 152 and 153 and a bent portion 155.
A second mold member 22 having a flow surface 264 forming an outer surface of one plate member 152,
Extrusion for a corner material 25, characterized in that a third mold member 23 having a flow surface 265 forming an outer surface of the other plate member 153 is removably fixed by a connecting means (bolt 471 or the like). Mold 4 for molding.

Only the contact surfaces of the first mold member with the second and third mold members need to be ground for repair when the flow surface is worn. Only the contact surface of the second mold member with the first mold member needs to be ground. Alternatively, only the contact surface of the third mold member with the first mold member may be ground. Therefore, the repair work is easy. Of the first to third mold members, only the damaged mold member whose flow hole is severely worn needs to be replaced, which is economical.

(73) An inlet metal connected to the extruder 2 by a connecting device 5 in order to extrude a corner material 25 having a pair of plate members 152 and 153 and a bent portion 155 connecting the plate members 152 and 153. Mold plate 16 and
It has an outlet mold plate 18 attached to the inlet mold plate 16 and
The output mold plate 18 is
The first to third mold members 21 to 23 are
It is characterized in that it is removably fixed by a bolt 471 which is a connecting means.
The extrusion molding die 4 having the first to third mold members 21 to 23 can be applied not only to the V-shaped corner material 25 but also to the U-shaped corner material 66 having a radius larger than the V-shape.

(74), as shown in FIGS. 51-56.
An extruded product mold 63 in which a flow hole 417 having a mold bending portion is formed in a virtual plane perpendicular to the resin moving direction.
A first mold having a flow surface 336 forming an inner surface of each pair of plate members 331 and 332 of the corner material 66 and a bent portion 333 connecting these plate members 331 and 332, and having an substantially L-shaped overall shape. Member 64 and
The second mold member 65 having the flow surface 337 facing the flow surface 336 of the first mold member 64
The extrusion molding die 63 is removable and fixed by the connecting means 338f.

(75) An inlet mold plate 62 connected to the extruder 2 by a connecting device 5 (FIGS. 2 and 4) in order to extrude the corner material 66.
It has an outlet mold plate 63 attached to the inlet mold plate 62, and has an outlet mold plate 63.
The output mold plate 63 is
The first and second mold members 64, 65
It is characterized in that it is removably fixed by a bolt 338f which is a connecting means.

According to the present invention, only the contact surface of the first mold member with the second mold member needs to be ground for repair when the flow surface is worn and for repair when the flow surface is worn. .. Alternatively, only the contact surface of the second mold member with the first mold member may be ground.
Of the first and second mold members, only one of the damaged mold members whose flow holes are severely worn needs to be replaced, which is economical.

The extrusion molding die 63 having the first and second mold members 64 and 65 is not only a U-shaped corner material 66 having a radius larger than the V-shape, but also a V-shaped corner having a radius smaller than that. It can also be carried out for the material 25 and the like.

(76) In each of the above configurations
The flow holes are arranged in a shape such as an inverted V-shape or an inverted U-shape that is convex upward.

(77) In each of the above configurations
It is characterized in that the intermediate position of the thickness of the flow hole perpendicular to the resin moving direction is a dividing surface parallel to the resin moving direction.

(78) The output mold plate may have a configuration shown by reference numeral 18 in FIG. 17 and reference numeral 63 in FIG. 51, but the resin transfer may be performed, for example, as described later in connection with FIG. 60. A configuration having upstream and downstream mold plates 75, 76 that are divided along the direction and fixed removably, and a plurality of mold plates 75, 76 may be arranged along the resin moving direction. Similarly, the inlet metal A plurality of mold plates 16, 62, 74 may also be arranged along the resin moving direction so as to form the flow holes 278, 416, 204 on the entrance side thereof.

(79) As shown in FIGS. 23 (1), 26, 27; 54 to 56; 60, 65.
A plurality of divided mold members 22, 23; 21 (FIG. 23): 64 in a virtual plane perpendicular to the resin moving direction (FIG. 23 (1), FIG. 26: FIG. 54: direction perpendicular to the paper surface of FIG. 65). , 65 (FIG. 56): 78, 79:81, 82 (FIG. 60) for extrusion molding dies 4:60:73.
Resin transfer of flow holes 277: 417: 205, 206; 207 formed by mold members 22, 23; 21 (FIG. 23): 64, 65 (FIG. 56): 78, 79: 81, 82 (FIG. 60). The intermediate position of the thickness perpendicular to the direction (circular enlarged view of FIG. 26 and FIG. 54, vertical direction of FIG. 65) is set to the outside of the flow holes 277: 417: 205, 206; 207, and the flow holes 277: 417: 205. , 206; 207 (ie, extending from the flow hole 277 in FIG. 26 to the right, from the flow hole 417 in the circular enlarged view of FIG. 54 to the right, and from the flow hole 207 in FIG. 65 to the right). 269, 267; 272, 268 (FIG. 23): 412, 414; 413, 415 (FIG. 23), which are parallel to the resin moving direction (that is, perpendicular to the paper surfaces of FIGS. 26, 54, and 65, for example). 56): 244, 246; 255, 247: 197, 203; 464, 467; 465, 468 (FIG. 60), which is a die for extrusion molding 4:60:73.

The intermediate positions of the flow holes 277: 417: 205, 206; 207 in the thickness perpendicular to the resin movement direction (circular enlarged view of FIGS. 26 and 54, vertical direction of FIG. 65) are shown in FIGS. 26, 54, and FIG. In 65, for example, ΔL1 = ΔL2 or ΔL1≈ΔL2 described below may be used, but 0 <ΔL1 <ΔL2 or ΔL1> ΔL2> 0 may be configured. As a result, the free end portions 279 at both ends in the width direction of each plate member 152, 153: 331, 332: 424, and 425 of the corner material 25: 66: 80 such as V type, U type, and flat type (FIGS. 26, 54, and FIG. 65) Prevents burrs from occurring. For convenience of understanding, the reference numeral 279 is not only the free end portion of the corner material plate members 152 and 153 (FIGS. 31 and 57), but also the flow holes 277 (FIG. 26) and 417 (FIG. 54) and 207. The free end portion of FIG. 65 is also shown.

(80) As shown in FIGS. 23 (1), 26, 27; 54 to 56; 60, 65.
Corner member 25 (FIG. 31): 66 (FIG. 57): 80 (FIG. 60) having a pair of plate members 152, 153: 331, 332: 424, 425 and a bent portion 155: 333: 423 connecting these plate members. ) For extrusion molding dies 4:60:73.
The divided surfaces 269, 267; 272, 268 (FIG. 23): 412, 414; 413, 415 (FIG. 56): 244, 246; 255, 247: 197, 203; 464, 467; 465, 468 (FIG. 60). Is
Thickness of flow holes 277: 417: 205, 206; 207 forming the respective plate members 152, 153: 331, 332: 424, 425 of the corner material 25:66:80 (circular enlarged view, FIG. It is characterized in that it is substantially at the center position (in the vertical direction of 65) (in FIGS. 26, 54, and 65, ΔL1 = ΔL2, or ΔL1≈ΔL2).

(81) A corner member 25 having a pair of plate members 152, 153: 331, 332: 424, 425 and a bent portion 155: 333: 423 connecting these plate members 152, 153: 331, 332: 424, 425. 31): 66 (57): 80 (60) extrusion mold 4:60:73.
(A) Mold members 22, 23; 21 (FIG. 23): 64, 65 (FIG. 56): 78, 79: 81, 82 (FIG. 60) are
Paired with respect to flow holes 277: 417: 205, 206; 207 in a virtual plane perpendicular to the resin movement direction (FIG. 23 (1), FIG. 26: FIG. 54: perpendicular to the paper surface of FIG. 65). Divided,
The mold members 22, 23; 21: 64, 65: 78, 79; 81, 82, which are divided into the pair, are
The flow surfaces 264, 265; 262, 263 (FIG. 24): 336, 337 (FIG. 55) facing each other and extending along the resin movement direction to form flow holes 277: 417: 205, 206; 207. 195, 196; 201, 202: 208; 209 to 211 (FIG. 60), respectively.
The paired and divided mold members 21, 22, 23:64, 65:78, 79; 81, 82 are
One of the mold members 22, 23:64:78; 81, one of the divided surfaces 269, 272 (FIG. 23): 412, 413 (FIG. 56): 244, 255, 197; 464, 465 (FIG. 60).
The other mold member 21: 65: 79; 82 has the other dividing surface 267, 268 (FIG. 23): 414, 415 (FIG. 56): 246, 247, 203; 467, 468 (FIG. 60). ,
(B) Connecting means 471a, 471b, 472a, 472b, 473a, 473b (FIGS. 17, 19, 27): 339a, 339b, 340a, 340b \ ~ (FIG. 53, 55): 520, 516, 517g ~ Has 517i (FIGS. 60, 62) and
In this connecting means, the pair of the one mold member 22, 23:64:78; 81 and the other mold member 21: 65: 79; 82 are connected to each other.
One of the divided surfaces 269, 272 (FIG. 23): 412, 413 (FIG. 56): 244, 255, 197; 464, 465 (FIG. 60) and the other divided surface 267, 268 (FIG. 23): 414. 415 (FIG. 56): 246, 247, 203; 467, 468 (FIG. 60) are brought into contact with each other and fixed.

(82) A V-shaped or U-shaped corner member 25, 66 having a bent axial cross section, in which a pair of plate members 152, 153 (FIG. 48); 331, 332 (FIG. 57) are connected by a bent portion 155; 333, is formed. In the corner material extrusion molding devices 1 and 61 to be extruded,
(A) An extruder 2 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a synthetic resin melted from the first pipe 11
(B) Extrusion molding dies 4 and 60.
(B1) The overall shape is rectangular,
(B2) It has the second pipe 12, and the pipe shaft 238b of the second pipe 12 is on a common straight line with the pipe shaft 238a of the first pipe 11.
(B3) Flow holes 277, 278; 416, 417 to which the resin from the second pipe 12 is guided are formed.
(B4) Extrusion molding dies 4, 60 in which the portions of the flow holes 277, 278; 416, and 417 corresponding to the plate members extend along the adjacent side portions of the rectangular body, respectively.
(C) Connecting devices 5 and 13 for connecting the first pipe 11 and the second pipe 12.
(C1) A first outward flange 221 provided at the end of the first pipe 11.
A truncated cone-shaped first inclined surface 222 that is radially inward as it is directed inward of the pipe shaft 238a of the first pipe 11.
A first outward flange 221 having a first sealing contact surface 239 facing the outside of the pipe shaft 238a of the first pipe 11 over the entire circumference of the first outward flange 221 in the circumferential direction.
(C2) A second outward flange 223 provided at the end of the second pipe 12 so as to face the first outward flange 221.
A truncated cone-shaped second inclined surface 224 that goes inward in the radial direction toward the inside of the pipe shaft 238b of the second pipe 12.
With the second sealing contact surface 241 capable of facing the outside of the pipe shaft 238b of the second pipe 12 and abutting the first sealing contact surface 239 over the entire circumference of the second outward flange 223 in the circumferential direction. Second outward flange 223 with
(C3) A cover body 226 surrounding the first and second outward flanges 221 and 223.
It has a pair of cover body portions 227 and 228 formed in half.
The inner surfaces of the cover body portions 227 and 228 are contacted with the cover body 226 to which the first and second inclined surfaces 222 and 224 are in contact with each other.
(C4) Tightening means 225
A connecting device having a tightening means 225 that tightens the cover body portions 227 and 228 in a direction close to each other so as to intersect the straight lines so that the first and second sealing contact surfaces 239 and 241 come into contact with each other to achieve the sealing. Including 5 and 13
It is a corner material extrusion molding apparatus characterized in that corner materials 25 and 66 from dies 4 and 60 are extruded in an upwardly convex posture.

Since the corner materials 25 and 66 are extruded and supplied from the molds 4 and 60 in an inverted V-shape or an inverted U-shape in an inverted V-shape or an inverted U-shape, water droplets, foreign substances, etc. , 66 easily slips off the surface and does not adhere. Therefore, undesired patterns, stripes, and other stain marks are not generated on the corner materials 25 and 66, and the quality can be improved. Further, even in a configuration in which the corner materials 25 and 66 are cooled by injecting water or passing through the water tank downstream of the subsequent sizing device 9, the water easily falls and does not adhere to the corner material V. The quality of the shaped or U-shaped corner materials 25 and 66 can be improved.

The connecting devices 5 and 13 enable mutual angular displacement around each axis of the first pipe 11 and the second pipe 12, that is, around the pipe shaft 238, and around the pipe shaft 238b of the second pipe 12 of the molds 4 and 60. Since the posture of the mold 4 and 60 can be adjusted, that is, the angular displacement can be adjusted, a rotation angle adjusting structure for setting the angular displacement position around the pipe shaft 238b in the resin moving direction of the molds 4 and 60 is realized.

The overall shape of the extrusion dies 4 and 60 is, for example, a rectangular parallelepiped or a cube, and the portions of the flow holes 277, 278; 416 and 417 corresponding to the plate members are adjacent to the rectangular parallelepiped. Since each of them extends along the portions, the operator can see the posture of the molds 4 and 60 around the pipe shaft 238b, so that the corner materials 25 and 66 from the molds 4 and 60 are projected upward, for example, vertically. It can be obtained by extrusion molding in a posture symmetrical with respect to the surface. In this way, the posture adjustment work of the molds 4 and 60 around the pipe shaft 238b can be easily performed.
Further, the connecting devices 5 and 13 allow the molds 4 and 60 to be attached / detached / replaced and maintained by a simple operation. Therefore, the productivity can be increased in manufacturing the V-shaped and U-shaped corner materials 25 and 66.

In the connecting devices 5 and 13, the first inclined surface 222 and the second inclined surface 224 come into contact with the inner surfaces of the cover body portions 227 and 228, and the cover body portions 227 and 228 are close to each other in the pipe axis 238 direction. As a result, the wedge action is exhibited. Therefore, the contact surface 239 for the first seal on the first outward flange 221 of the first pipe 11 and the contact surface 241 for the second seal on the second outward flange 223 of the second pipe 12 are in the direction of the pipe shaft 238. Contact each other with great force. Therefore, the first pipe 11 and the second pipe 12 can be airtightly connected without leakage of the fluid such as the molten resin to be transported without a sealing material such as packing.

The connecting devices 5, 13 and 185 enable the mutual angular displacement of each axis of the first tube 11 and the second tube 12, that is, around the tube axis 238, as described above, and the second tube 12 of the mold 73. Since the posture around the pipe shaft 238b, that is, the angular displacement can be adjusted, a rotation angle adjusting structure for setting the angular displacement position around the pipe shaft 238b in the resin moving direction of the mold 73 is realized.

The overall shape of the extrusion die 73 is a rectangular parallelepiped, for example, a rectangular parallelepiped, and the portions of the flow holes 205 to 207 corresponding to each plate member extend along the upper and lower side portions of the rectangular parallelepiped. Therefore, by allowing the operator to see the posture of the mold 73 around the pipe shaft 238b, the corner material 80 from the mold 73 can be extruded in a horizontal flat posture, and as a result, cooling can be obtained. It can be smoothly guided to the roller having the horizontal rotation axis of the flattening device. In this way, the posture adjustment work of the mold 73 around the pipe shaft 238b can be easily performed.

Further, the connecting devices 5, 13 and 185 allow the mold 73 to be attached / detached / replaced and maintained by a simple operation. Therefore, in manufacturing the flat corner material 80, the productivity can be increased.

(83) V-shaped or U-shaped flexibility and elasticity in which a pair of plate members 152, 153 (FIG. 48); 331, 332 (FIG. 57) are connected by a bent portion 155; 333 and the cross section perpendicular to the axis is bent. In the punching device 49 for an extrusion molding device, which extrudes and continuously supplies the synthetic resin corner materials 25 and 66,
A plurality of drilling means 145 and 146 are sequentially arranged along the moving direction of the corner materials 25 and 66.
Each of the drilling means 145 and 146 includes punches 138 and 139 and dies 141 and 142 that drill a plurality of holes in the movement direction in a pair of plate members 152 and 153 (FIG. 48); 331 and 332 (FIG. 57). Each has a combination
With the corner material twisted around the axis and one of the plate members horizontal, the upstream drilling means makes holes in the first plurality (for example, 5) rows in the moving direction for each vertical movement. Perforated
With the other plate member leveled by twisting by a predetermined angle (for example, 90 °), the first plurality (for example, 5) rows in the moving direction are used for each vertical movement by the downstream drilling means. Drill a hole in
The upstream drilling means 145 and the downstream drilling means 146 are driven by a common crank mechanism 132 for vertical displacement all at once and intermittently.
The holes are drilled in the second plurality (for example, 3) rows in the width direction in each of the plate members of the corner members 25 and 66 for each vertical movement by the upstream drilling means 145 and the downstream drilling means 146. Being done
The time interval for each drive is selected so that the holes drilled in the plate member of the corner material are uniformly arranged over the entire length of the corner material in accordance with the moving speed of the corner material. It is a drilling device characterized by.

Since each pair of plate members of V-shaped and U-shaped corner materials is twisted by a predetermined angle (for example, 90 °) and perforated upstream and downstream by the perforating means 145 and 146, respectively, each pair of plates is perforated. Compared with a configuration in which each member is individually drilled by a total of two drilling machines, the drilling speed is improved and the productivity is excellent. The corner materials 25 and 66 continuously supplied from the extrusion molding apparatus are made of synthetic resin and have flexibility and elasticity. Therefore, when drilling by combining the punch and die of the drilling apparatus, the corner materials 25 and 66, Even if the movement of the 66 is stopped for a moment, there is no possibility that the corner materials 25 and 66 are plastically deformed and the quality is deteriorated.

(84) In a mold for extruding a flat corner material 80 formed by connecting a pair of plate members 424 and 425 made of a hard resin with a flexible bending portion 423 made of a soft resin.
It has upstream and downstream mold plates 75, 76 that are split along the direction of resin movement and fixed removable.
The upstream mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by the first connecting means.
The first and second mold members 78 and 79 are
Individual flow surfaces 195, 196: 201, 202 that extend and extend through the ridges 197, 203 in the width direction perpendicular to the resin movement direction, the first and for each pair of plate members 424 and 425. Individual flow surfaces 195, 196: 201, 202 forming individual flow holes 205, 206 for the second hard resin, and
On both outer sides of the individual flow holes 205 and 206 for the first and second hard resins, and on the raised portions 197 and 203, the upstream contact surfaces 244, 245: 246, 247: which abut each other to form an upstream split surface. Has 197, 203 and
The first mold member 78 has a first end surface 521 facing downstream, and has a first end surface 521.
The downstream mold plate 76 is configured such that the third and fourth mold members 81 and 82 are removably fixed by the second connecting means.
The third mold member 81 is
It has a second end surface 522 facing upstream that comes into surface contact with the first end surface 521 of the first mold member 78.
A soft resin supply recess 212 that faces the second end surface 522 and forms a soft resin supply path 213 that guides the soft resin for the bent portion 423 together with the first end surface 521 is provided.
The first end surface 521 of the first mold member 78 and the soft resin supply recess 212 of the third mold member 81 form a soft resin supply path 213 that guides the soft resin for the bent portion 423.
The third and fourth mold members 81 and 82 are
Common flow surfaces 208: 209 to 211 extending in the width direction, the hard resin for the pair of plate members 424, 425 from the individual flow holes 205, 206 for the first and second hard resins, and the soft. A common flow hole 207 for guiding the soft resin for the bent portion 423 from the resin supply path 213 is formed, and the soft resin is formed at the upstream end of the common flow hole 207, and the individual flow holes 205 for the first and second hard resins, Common flow surfaces 208: 209 to 211, which are supplied between the hard resins from 206 and connect the adjacent portions of the hard resins for the pair of plate members 424 and 425 with the soft resin for the bent portion 423.
On both outer sides of the common flow hole 207, there are downstream contact surfaces 464, 465: 467, and 468 that abut each other to form a downstream dividing surface.
The third and fourth mold members 81 and 82 have recesses 427a and 427b formed in the common flow hole 207 and its peripheral portion on the downstream side.
The length L207 (see FIG. 52 (2)) of the common flow hole 207 in the resin movement direction is in the width direction as each hard resin for the pair of plate members 424 and 425 moves in the common flow hole 207. By being close to each other, the width of the soft resin for the bend 423 is selected to be a predetermined value.
The outer peripheral portions 428a and 428b of the recess 427 are formed to be thicker than the common flow hole 207 and its peripheral portion.
An extrusion-molded mold made of a flat corner material, characterized in that the outer peripheral portions 428a and 428b and the upstream mold plate 75 are detachably connected and fixed by a third connecting means.

The common flow hole of the downstream mold plate and its peripheral portion are formed by denting on the exit side, whereby the length of the common flow hole in the resin movement direction is increased by that of the soft resin in the common flow hole and the soft resin thereof. During the movement of the hard resin on both sides, the width of the soft resin is set to a predetermined value, and the outer peripheral portion of the recess is formed thick to improve the strength by the connecting means, and the upstream and upstream by the connecting means. The mounting strength of the downstream mold plate can be improved.

(85) In a mold for extruding a flat corner material 80 formed by connecting a pair of plate members 424 and 425 made of hard resin with a bendable bending portion 423 made of soft resin.
It has upstream and downstream mold plates 75, 76 that are split along the direction of resin movement and fixed removable.
The upstream mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by the first connecting means.
The first mold member 78 is
The first and second flow surfaces 195 and 196, which extend in the width direction perpendicular to the resin movement direction and form one surface of each of the pair of plate members 424 and 425, respectively.
The first and second contact surfaces 244 and 245, which are formed on both outer sides of the first and second flow surfaces 195 and 196 and are formed so as to rise above the first and second flow surfaces 195 and 196.
A first raised portion formed above the first and second flow surfaces 195 and 196 and having a third contact surface 197 between the width directions of the first and second flow surfaces 195 and 196.
It has a first end face 521 facing downstream,
The second mold member 79 is
Third and fourth flow surfaces 201 and 202, which extend in the width direction perpendicular to the resin movement direction and form the other surface of each pair of plate members 424 and 425, respectively.
Between the width directions of the third and fourth flow surfaces 201 and 202, the third and fourth flow surfaces 201 and 202 are formed to be raised above the third and fourth flow surfaces 201 and 202, and abut on the third contact surface 197 of the first raised portion. A second raised portion having a fourth contact surface 203,
On both outer sides of the third and fourth flow surfaces 201 and 202, they are raised above the third and fourth flow surfaces 201 and 202 in the thickness direction and hit the first and second contact surfaces 244 and 245, respectively. It has fifth and sixth contact surfaces 246 and 247 that are in contact with each other to form a split surface together with the third and fourth contact surfaces 197 and 203.
The first flow surface 195 and the third flow surface 201 form an individual flow hole 205 for the first hard resin for one plate member 424.
The second flow surface 196 and the fourth flow surface 202 form an individual flow hole 206 for the second hard resin for the other plate member 425.
The downstream mold plate 76 is configured such that the third and fourth mold members 81 and 82 are removably fixed by the second connecting means.
The third mold member 81 is
The first mold member 78 has a second end surface 522 facing upstream in surface contact with the first end surface 521.
A soft resin supply recess 212 for guiding the soft resin for the bent portion 423 is formed on the second end surface 522.
A pair of plate members 424, 425 from the individual flow holes 205 and 206 for the first and second hard resins, and the soft resin supply, with the end of the soft resin supply recess 212 facing the upstream end extending in the width direction. A fifth flow surface 208, which commonly forms one surface of each of the bent portions 423 from the recess 212,
On both outer sides of the fifth flow surface 208, there are seventh and eighth contact surfaces 464 and 465 that are raised above the fifth flow surface 208.
The fourth mold member 82 is
The sixth and seventh flow surfaces 209, 211, which extend in the width direction and form the other surfaces of the pair of plate members 424 and 425, respectively.
A third raised portion 220 formed between the sixth and seventh flow planes 209 and 211 in the width direction above the sixth and seventh flow planes 209 and 211, and is a pair of plates. A third raised portion 220 forming an eighth flow surface 210 forming the other surface of the bent portion 423 between the members 424 and 425,
On both outer sides of the 6th and 7th flow surfaces 209 and 211, the divided surfaces are raised above the 6th and 7th flow surfaces 209 and 211 and abut on the 7th and 8th contact surfaces 464 and 465, respectively. It has 9th and 10th contact surfaces 467 and 468 to be formed.
A common flow hole 207 is formed by the fifth flow surface 208 and the sixth, seventh and eighth flow surfaces 209, 211 and 210.
The first end surface 521 of the first mold member 78 and the soft resin supply recess 212 of the third mold member 81 form a soft resin supply path 213 that guides the soft resin for the bent portion 423 to the common flow hole 207. A soft resin supply path 213 is defined to form a bent portion 423 connecting the pair of plate members 424 and 425.
The third and fourth mold members 81 and 82 have recesses 427a and 427b formed in the common flow hole 207 and its peripheral portion on the downstream side.
The length L207 (see FIG. 52 (2)) of the common flow hole 207 in the resin movement direction is in the width direction as each hard resin for the pair of plate members 424 and 425 moves in the common flow hole 207. By being close to each other, the width of the soft resin for the bend 423 is selected to be a predetermined value.
The outer peripheral portions 428a and 428b of the recess 427 are formed to be thicker than the common flow hole 207 and its peripheral portion.
An extrusion-molded mold made of a flat corner material, characterized in that the outer peripheral portions 428a and 428b and the upstream mold plate 75 are detachably connected and fixed by a third connecting means.

(86) (a) Extrusion molding die 73 of the flat corner material 80.
The overall shape is rectangular
The portions corresponding to the plate members 424 and 425 of the individual flow holes 205 and 206 for the first and second hard resins and the common flow holes 207 are the upper and lower side portions 288b and 288c of the rectangular body (FIGS. 59 (2) and 60. Extend along (see)
Extrusion molding dies 73 of the flat corner material 80 for supplying the corner material 80 in a horizontal posture in a virtual plane perpendicular to the resin moving direction.
(B) A cooling flattening device for cooling and flattening the corner material 80 from the extrusion mold 73 by winding or pressing the corner material 80 on a roller having a plurality of horizontal rotation axes arranged vertically. It is an extrusion molding device for corner materials.

Since the corner material 80 is extruded and supplied from the mold 73 in a horizontal flat posture, it can be cooled and flattened by a plurality of rollers of the cooling flattening device in that posture. Therefore, a sizing device having a complicated structure for a V-shaped or U-shaped corner material becomes unnecessary.

(87) A corner member 25 having a pair of plate members 152, 153: 331, 332: 424, 425 and a bent portion 155: 333: 423 connecting these plate members 152, 153: 331, 332: 424, 425. 31): 66 (57): 80 (60) in the extrusion die 4:60:73.
(A) The first flow hole 278: 416: 204 is provided, and the resin moving direction (FIG. 23 (1), FIG. 26: FIG. 54: FIG. 65) is above and below the first flow hole 278: 416: 204. First mold plate 16:62:74 each having guide protrusions 281 and 282 (in the drawing, subscripts a and b may be attached, the same shall apply hereinafter) extending vertically (in the direction perpendicular to the paper surface) and projecting downstream. When,
(B) The first mold plate is arranged adjacent to the downstream of the resin moving direction (FIG. 23 (1), FIG. 26: FIG. 54: perpendicular to the paper surface of FIG. 65) from the first mold plate 16:62:74. It has a second flow hole 277: 417: 205, 206; 207 that communicates with the flow hole 278: 416: 204, and a resin moving direction (above and below the second flow hole 277: 417: 205, 206; 207). 23 (1), 26: 54: perpendicular to the paper surface of FIG. 65) extending vertically to face upstream, and guide notches 284 and 285 (in the drawing, in which the guide protrusions 281 and 282 are fitted, respectively). Second mold plates 18: 63: 75, 76 having subscripts a and b, the same shall apply hereinafter), respectively.
(C) Connecting means 471c to 471f, 472c to 472f, 473c to removably connect and fix the first mold plate 16:62:74 and the second mold plate 18:63:75, 76. f (FIGS. 17, 19, 27), 339c to 339e, 340c to 340e (FIG. 53, 55), 517a, 517b, 517e, 517f (FIG. 62); 471a, 471b, 472a, 472b, 473a, 473b. (FIGS. 17, 19, 27): 339a, 339b, 340a, 340b (FIG. 53, 55): 520, 516, 517g to 517i (FIGS. 60, 62) for extrusion molding. Mold.

The guide protrusions 281 and 282 and the guide notches 284 and 285 are fitted to each other so that the first mold plate 16:62:74 and the second mold plate 18:63: around the axis in the resin moving direction are Positioning with 75 and 76 can be easily and accurately achieved.

(88) For extrusion molding of V-shaped, U-shaped and flat corner materials,
(A) The second mold plate 18:63:75, 76
(A1) In the virtual plane perpendicular to the resin moving direction, the mold members 22, 23; 21 (FIG. 23) are divided in pairs with respect to the second flow holes 277: 417: 205, 206; 207. It has 64, 65 (FIG. 56): 78, 79: 81, 82 (FIG. 60).
(A2) The pair-divided mold members 22, 23; 21:64, 65:78, 79; 81, 82 are
(A2-1) Flow surfaces 264, 265; 262, 263 (FIG. 24): 336 that face each other and extend along the resin movement direction to form second flow holes 277: 417: 205, 206; 207. , 337 (Fig. 55): 195, 196; 201, 202: 208; 209 to 211 (Fig. 60), respectively.
(A2-2) Extends outward of the second flow hole 277: 417: 205, 206; 207 along the second flow hole 277: 417: 205, 206; 207 (ie, for example, the second flow in FIG. 26). It extends from the hole 277 to the right, from the second flow hole 417 in the circular enlarged view of FIG. 54 to the right, and from the second flow hole 207 of FIG. 65 to the right), and is parallel to the resin moving direction (that is,). (For example, perpendicular to each page of FIGS. 26, 54, 65) Divided surfaces 269, 267; 272, 268 (FIG. 23): 412, 414; 413, 415 (FIG. 56): 244, 246; 255, 247: It has 197, 203; 464; 467; 465, 468 (FIG. 60), respectively.
(A2-3) Of the mold members 22, 23: 64: 78; 81 of one of the mold members 21, 22, 23:64, 65:78, 79; 81, 82 divided into the pair. One dividing surface 269, 272 (FIG. 23): 412, 413 (FIG. 56): 244, 255, 197; 464, 465 (FIG. 60).
The other dividing surface 267, 268 (FIG. 23): 414, 415 (FIG. 56): 246, 247, 203; 467, 468 (FIG. 60) of the other mold member 21: 65: 79; 82. contact,
(B) Connecting means 471c to 471f, 472c to 472f, 473c to f (FIGS. 17, 19, 27), 339c to 339e, 340c to 340e (FIG. 53, 55), 517a, 517b, 517e, 517f (FIG. 17, FIG. 62); 471a, 471b, 472a, 472b, 473a, 473b (FIGS. 17, 19, 27): 339a, 339b, 340a, 340b (FIG. 53, 55): 520, 516, 517g to 517i (FIG. 62). 60, 62)
(B1) One mold member of the first mold plate 16:62:74 and the pair-divided mold members 22, 23; 21:64, 65:78, 79; 81, 82. 22, 23: 64: 78; 81, the first connecting means 471c to 471f, 472c to 472f, 473c to f (FIGS. 17, 19, 27), 339c to 339e, which are detachably connected and fixed. 340c to 340e (FIG. 53, 55), 517a, 517b, 517e, 517f (FIG. 62), and
(B2) Second connecting means 471a, 471b, 472a, 472b, 473a, 473b (FIGS. 17, 19, 27): 339a, 339b, 340a, 340b (FIG. 53, 55): 520, 516, 517g ~ 517i (FIGS. 60, 62)
First mold plate 16:62:74,
The other mold member 21: 65: 79; 82,
Second connecting means 471a, 471b, 472a, 472b, 473a, 473b (FIGS. 17, 19, 27): 339a, 339b, 340a, 340b (FIG. 53, 55): 520, which are detachably connected and fixed. It is characterized by including 516, 517 g to 517i (FIGS. 60 and 62).

The second mold plate may have the configuration shown by reference numeral 18 in FIG. 17 and reference numeral 63 in FIG. 51, but as shown in FIG. 60, for example, the second mold plate is divided along the resin moving direction and can be removed. It may be configured to have upstream and downstream mold plates 75, 76 fixed to.

(89) For extrusion molding of V-shaped corner material
The one mold member 22, 23 of the second mold plate 18 is
A first mold member 22 having a flow surface 264 forming an outer surface of one plate member 152,
It has a second mold member 23 having a flow surface 265 forming an outer surface of the other plate member 153.
The first and second mold members 22 and 23 form a flow surface 301 (FIG. 24) that forms the outer surface of the bent portion 155 by connecting the first and second flow surfaces 264 and 265. And
The other mold member 21 has flow surfaces 262 and 263 forming the inner surface of the bent shape of the pair of plate members 152 and 153 and the bent portion 155.
The second flow hole 277 is formed by the flow surfaces 262 to 265 of the first and second mold members 22, 23 and the other mold member 21.
The first and second mold members 22, 23 and the other mold member 21 are detachably fixed to each other by the third connecting means 471g to 471L (FIG. 17).

For convenience of explanation, the above-mentioned first and second mold members 22, 23 and the other mold member 21 are described in the column of the mode for carrying out the invention, and the second, third and first molds are used. It may be called a member.

(90) For extrusion molding of U-shaped corner material
The one mold member 64 of the second mold plate 63 (FIG. 55) has a flow surface 336 forming an outer surface of each pair of plate members 331 and 332 and the bent portion 333.
The other mold member 65 has a flow surface 337 that forms an inner surface of each pair of plate members 331 and 332 and the bent portion 333.
The second flow hole 417 is formed by the flow surfaces 336 and 337 of the one and the other mold members 64 and 65.
The one and the other mold members 64 and 65 are detachably fixed to each other by a third connecting means 338f (FIG. 56).

(91) For extrusion molding of flat corner materials
The corner material 80 (FIG. 60) is a flat shape in which a pair of plate members 424 and 425 made of hard resin are connected by a flexible bending portion 423 made of soft resin.
The second mold plates 75, 76 have upstream and downstream mold plates 75, 76 that are divided along the resin moving direction and fixed removable.
The upstream mold plate 75 communicates with the first flow hole 204 and has separate upstream second flow holes 205, 206 formed for one and the other plate members 424 and 425, respectively.
The downstream mold plate 76 communicates with the upstream second flow holes 205, 206 and is common to the downstream second for the one and other plate members 424, 425 and the bend 423 to which the soft resin is guided. Flow holes 207 are formed
The upstream mold plate 75 is configured such that the first and second mold members 78 and 79 are removably fixed by a third connecting means.
The first and second mold members 78 and 79 have flow surfaces 195, 196; 201 and 202 forming the upstream second flow holes 205 and 206, respectively.
The downstream mold plate 76 is configured such that the third and fourth mold members 81 and 82 are removably fixed by the fourth connecting means.
The third and fourth mold members 81 and 82 are characterized by having flow planes 208; 209 to 211, respectively, which form the second flow hole 207 downstream.

(92) Extruded corner members 25, 66, 80 in which a pair of plate members 152, 153 (FIG. 48); 331, 332 (FIG. 57); 424, 425 (FIG. 60) are connected by a bent portion 155; 333; 423. In the corner material extrusion molding apparatus 1, 61, 72 to be molded,
(A) Extruders 2, 184 having the first pipe 11 and having the pipe shaft 238a of the first pipe 11 extending laterally to supply the synthetic resin melted from the first pipe 11 and
(B) Extrusion molding dies 4, 60, 73 described above.
The first mold plate 16:62:74 has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is in a common straight line with the pipe shaft 238a of the first pipe 11, and the second pipe 12 Extrusion molding dies 4, 60, 73, in which the resin from
(C) Extrusion molding including connecting devices 5, 13, and 185 that connect the first pipe 11 and the second pipe 12 so as to be angularly displaceable around the common straight pipe shafts 238a and 238b. apparatus.

The connecting devices 5, 13 and 185 allow mutual angular displacement around each axis of the first pipe 11 and the second pipe 12, that is, the pipe shaft 238, and the pipe shaft of the second pipe 12 of the molds 4 and 60. Since the posture around 238b, that is, the angular displacement can be adjusted, the rotation angle adjusting structure for setting the angular displacement position around the pipe shaft 238b in the resin moving direction of the molds 4 and 60 is realized.

With the connecting devices 5 and 13, the molds 4 and 60 can be attached / detached / replaced and maintained by a simple operation. Therefore, productivity can be increased in manufacturing V-shaped and U-shaped corner materials 25 and 66.

(93) (d) Corner materials 25, 66, 80 which are arranged downstream of the extrusion dies 4, 60, 73 and are extruded from the extrusion dies 4, 60, 73 are supplied. Sizing molds 9, 34, 674, 684 and
Arranged downstream of the sizing dies 9, 34, 674, 684, the corner materials 25, 66, 80 from the sizing dies 9, 34, 674, 684 are subjected to a force in the direction opposite to the warp. It is characterized by including a warp correction means 688 for correcting warpage.

The warp correction means 688 exerts a force on the upper part of FIG. 91 (1), which is the direction opposite to the warp of the corner materials 25, 66, 80, which are molded products from the sizing dies 9, 34, 674, 684. And displaced, straightened as reference mark 689 and warped to obtain a product with a linear axis 677. By rotating the extrusion molds 4, 60, 73, 681 and the sizing molds 9, 34, 674, 684 by the connecting devices 5 and 13, the width direction of the molding table 673 (FIG. 91 (1)). In many cases, it is possible to provide a large space (in the vertical direction), so that there is no limit to the correction of warpage of the corner materials 25, 66, and 80.

(94) For extrusion molding of V-shaped or U-shaped corner materials
A pair of plate members 152, 153 (FIG. 48); 331, 332 (FIG. 57) are bent at a portion 155;
In the corner material extrusion molding devices 1 and 61 for extruding the V-shaped or U-shaped corner materials 25 and 66 connected by 333.
(A) An extruder 2 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a synthetic resin melted from the first pipe 11
(B) Extrusion molding dies 4 and 60 having a rectangular shape as a whole.
It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is in a common straight line with the pipe shaft 238a of the first pipe 11, and the resin from the second pipe 12 is used for the corner materials 25 and 66. Flow hole 277,
Guided by 278: 416, 417
The portions of the flow holes 277: 417 corresponding to the plate members 152, 153: 331, 332 are adjacent side portions of the rectangular body (for example, the upper or lower side portion and the right or left side portion of FIG. 23 (1). ,
Extrusion molds 4, 60 extending along (ie, parallel to FIG. 23 (1), FIG. 54), respectively, along the upper or lower side of FIG. 54 and the right or left side.
(C) To supply the corner materials 25 and 66 from the flow holes 277, 278: 416 and 417 in an inverted V-shaped or inverted U-shaped posture that is convex upward in a virtual plane perpendicular to the resin moving direction. of,
A means for expressing the rotation angle of the second pipe 12 around the pipe shaft 238b, and
(D) Connecting devices 5 (FIG. 5) and 13 (FIG. 15) for connecting the first pipe 11 and the second pipe 12 so as to be angularly displaceable around the pipe shafts 238a and 238b on the common straight line.
(E) The extrusion molding apparatus includes a sizing apparatus 9 having a cooling flow hole 33 (FIG. 2) for cooling the corner materials 25 and 66 introduced from the extrusion molding dies 4 and 60.
(95) For extrusion molding of flat corner materials
A corner material extrusion molding device 7 for extruding a flat corner material 80 in which a pair of plate members 424 and 425 (FIG. 60) made of a hard resin are connected by a flexible bending portion 423 made of a soft resin.
In 2,
(A) An extruder 184 having a first pipe 11 and having a pipe shaft 238a of the first pipe 11 extending laterally to supply a molten hard resin from the first pipe 11
(B) Extrusion molding die 73 having a rectangular shape as a whole.
It has a second pipe 12, and the pipe shaft 238b of the second pipe 12 is on a common straight line with the pipe shaft 238a of the first pipe 11.
The first flow hole 204 from which the hard resin is guided from the second pipe 12 and
Individual flow holes 205 and 206 for the first and second hard resins, which are formed by communicating with the first flow holes 204 downstream in the resin moving direction and having a gap in the width direction, and for each plate member 424 and 425,
A pair of plate members 424, 42 from the individual flow holes 205, 206 for the first and second hard resins.
The common flow hole 207 leading to 5 and
It has a soft resin supply path 213 that guides the soft resin for the bent portion 423 to the common flow hole 207 and fixes it to the plate members 424 and 425 in the gap.
The portions corresponding to the plate members 424 and 425 of the individual flow holes 205 and 206 for the first and second hard resins and the common flow holes 207 are the upper and lower side portions 288b and 288c of the rectangular body (FIG. 59 (FIG. 59).
2), an extrusion die 73 extending along (see FIG. 60), and
(C) As a means for expressing the rotation angle around the pipe shaft 238b of the second pipe 12 for supplying the corner material 80 from the common flow hole 207 in a horizontal posture in a virtual plane perpendicular to the resin movement direction. ,
(D) A connecting device 185 (FIG. 59 (1)) that connects the first pipe 11 and the second pipe 12 so as to be angularly displaceable around the pipe shafts 238a and 238b on the common straight line.
(E) A soft resin extruder 85 that supplies the molten soft resin, and
(F) Member 87 that supplies the soft resin from the soft resin extruder 85 to the soft resin supply path 213.
When,
(G) A cooling flattening device 91 that cools and flattens the corner material 80 from the extrusion die 73 by winding or pressing it on a roller having a plurality of horizontal rotation axes arranged vertically.
It is an extrusion molding apparatus for corner materials, which comprises.
The present invention can be widely implemented in connection with extrusion dies for producing not only corner materials but also other long extrusion molds.

1 V-type corner material manufacturing equipment 2 Extruder 4 V-type corner material mold 5, 13, 185, 185a Pipe connection device 7, 28 Heating device 8 Air injection cooling device 9 Sizing device 11 One tube 12 The other tube 16 Upstream mold plate 18 Downstream mold plate 21 1st mold member 22 2nd mold member 23 3rd mold member 25, 48 V-shaped corner material 27 Terminal piece 30 Air injection cooling device 33 Cooling flow hole 44 , 46 1st take-up device 49, 194 Punching device 50, 51 Punching means 53, 193 Double-sided tape sticking device 54 Double-sided tape 55 Release paper 56 2nd taking device 57 Standard length cutting device

60 U-shaped corner material mold 61 U-shaped corner material manufacturing equipment 62 Upstream mold plate 63 Downstream mold plate 64 1st mold member 65 2nd mold member 66 U-shaped corner material 72 Flat corner material manufacturing equipment 73 Flat corner material mold 74 1st mold plate 75 2nd mold plate 76 3rd mold plate 78 Upper mold member of 2nd mold plate 75 79 Lower mold member of 2nd mold plate 75 80 Flat corner material 81 Upper mold member of 3rd mold plate 76 82 Lower mold member of 3rd mold plate 76 87 Spherical pipe joint 88 1st pipe part 89 2nd pipe part 90 Bag nut 91 Cooling and flattening device 94 Cover body 95, 96 Cover body part 107 Tube member 152, 153, 331, 332, 424, 425 Plate member 155, 333, 423 Bending part 184 Hard resin extruder 186 Soft resin extruder 189 Air injection cooling device 192 Pick-up device

205, 206 Individual flow holes 207 Common flow holes 212 Soft resin supply recess 213 Soft resin supply path 221 First outward flange 222 First inclined surface 223 Second outward flange 224 Second inclined surface 226 Cover body 227, 228 Cover body Part 281, 282 Guide protrusion 284, 285 Guide notch 287, 288 Reference plane for leveling device 289 Symmetrical plane 292, 293 Concavo-convex strip 298, 299 Smooth surface 305, 306 Electric heater member 314, 315 Cover member 316 Heat-generating wire 319, 320 Electricity Insulator 321 Heat-generating body 402 Endless take-up member 404, 405 Tension part 409, 410 Endless belt 427 Recess 428 Outer circumference 431 1st end 432 1st connection pipe 434 2nd end 435 2nd connection pipe 701 Outlet end face 702 Entrance end face 704, 722 Indentation 705 Arc surface 706 Flat surface 708 Tangent line 708 Tangent line

Claims (4)

In a corner material extrusion molding device that extrudes a V-shaped or U-shaped corner material in which a pair of plate members are connected at a bent portion.
(A) An extruder having a first pipe, the pipe shaft of the first pipe extending laterally, and supplying a synthetic resin melted from the first pipe.
(B) An extrusion molding die having a rectangular shape as a whole.
It has a second pipe, and the pipe shaft of the second pipe is in a common straight line with the pipe shaft of the first pipe, and the resin from this second pipe is guided to the flow hole for the corner material.
Extrusion molding dies in which the flow holes corresponding to each plate member extend along the adjacent side portions of the rectangular body.
(C) Around the pipe axis of the second pipe for supplying the corner material from the flow hole in an upwardly convex inverted V-shaped or inverted U-shaped posture in a virtual plane perpendicular to the resin movement direction. A means for expressing the rotation angle of the above, and a means for expressing the rotation angle realized by the reference plane for the spirit level provided in connection with the extrusion molding die and the spirit level mounted on the reference plane.
(D) A connecting device that connects the first pipe and the second pipe so as to be angularly displaceable around the pipe axis on the common straight line.
(E) An extrusion molding apparatus for a corner material, which includes a sizing apparatus having a cooling flow hole for cooling the corner material introduced from an extrusion molding die. In a corner material extrusion molding device that extrudes a flat corner material in which a pair of plate members made of hard resin are connected by a bendable portion made of soft resin.
(A) An extruder having a first pipe, the pipe shaft of the first pipe extending laterally, and supplying the molten hard resin from the first pipe.
(B) An extrusion mold having a rectangular shape as a whole.
It has a second pipe, and the pipe axis of the second pipe is on a common straight line with the pipe axis of the first pipe.
The first flow hole from which the hard resin is guided from the second pipe, and
Individual flow holes for the first and second hard resins for each plate member, which are formed by communicating with the first flow hole downstream in the resin movement direction and leaving a gap in the width direction.
A common flow hole that guides a pair of plate members from the individual flow holes for the first and second hard resins,
It has a soft resin supply path that guides the soft resin for the bent portion to the common flow hole and fixes it to the plate member in the gap.
Extrusion molding dies in which the portions of the individual flow holes for the first and second hard resins and the common flow holes corresponding to the plate members extend along the upper and lower side portions of the rectangular body.
(C) A means for expressing the rotation angle around the pipe axis of the second pipe for supplying the corner material from the common flow hole in a horizontal posture in a virtual plane perpendicular to the resin movement direction, and a level. A means of expressing the rotation angle realized by the upper side that acts as a dexterous reference plane and the spirit level mounted on it.
(D) A connecting device that connects the first pipe and the second pipe so as to be angularly displaceable around the pipe axis on the common straight line.
(E) A soft resin extruder that supplies the molten soft resin, and
(F) A member that supplies the soft resin from the soft resin extruder to the soft resin supply path, and
(G) A cooling flattening device for cooling and flattening a corner material from an extrusion mold by winding or pressing a roller having a plurality of horizontal rotation axes arranged one above the other. A characteristic extrusion molding device for corner materials. The connecting device that connects the first pipe and the second pipe is
(C1) A first outward flange provided at the end of the first pipe and having a contact surface for the first seal, and
(C2) A second outward flange provided at the end of the second pipe facing the first outward flange and having a contact surface for a second seal, and a second outward flange.
(C3) A claim comprising a tightening means for tightening the first and second outward flanges in a direction close to each other and abutting the contact surfaces for the first and second seals to achieve the seal. Item 2. The corner material extrusion molding apparatus according to Item 1 or 2 . The connecting device that connects the first pipe and the second pipe is
(A) A first outward flange provided at the end of the first pipe.
A truncated cone-shaped first inclined surface that goes inward in the radial direction toward the inside of the pipe axis of the first pipe,
A first outward flange having a first sealing contact surface facing the outside of the pipe shaft of the first pipe over the entire circumference of the first outward flange in the circumferential direction.
(B) A second outward flange provided at the end of the second pipe so as to face the first outward flange.
A truncated cone-shaped second inclined surface that goes inward in the radial direction as it goes inward on the pipe axis of the second pipe 12.
A second outer surface having a second sealing contact surface that faces the outer side of the pipe shaft of the second pipe and can contact the first sealing contact surface over the entire circumference of the second outward flange in the circumferential direction. With the facing flange,
(C) A cover body that surrounds the first and second outward flanges.
It has a pair of cover body parts formed in a half shape,
The inner surface of each cover body portion includes a cover body 226 with which the first and second inclined surfaces abut.
(D) A tightening means
Claim 1 or claim 1, wherein the cover body portion is fastened in a direction close to each other intersecting in a straight line, and the first and second sealing contact surfaces come into contact with each other to achieve sealing. 2. The corner material extrusion molding apparatus according to 2.