WO2014192556A1

WO2014192556A1 - Wire-drawing device

Info

Publication number: WO2014192556A1
Application number: PCT/JP2014/062982
Authority: WO
Inventors: 清水　良浩; 正樹小高
Original assignee: 株式会社神戸製鋼所
Priority date: 2013-05-27
Filing date: 2014-05-15
Publication date: 2014-12-04
Also published as: EP3006127B1; EP3006127A4; JP2014226721A; EP3006127A1; KR101852247B1; CN105263643B; CN105263643A; JP5968264B2; KR20160003793A

Abstract

A wire-drawing device (1) for wire-drawing a wire rod by passing said wire rod through a die hole formed by a pair of roller dies (2), the wire-drawing device being provided with: a frame (3); rotation shafts (4) for supporting said roller dies (2) so as to rotate freely; housings (5), which are separate from the frame (3) and on which the rotation shafts (4) for supporting the roller dies (2) are mounted while also supporting the mounted rotation shafts (4); a first positioning means for positioning a housing (5) with respect to the frame (3) by moving the housing along the axial direction of the rotation shaft (4) supported by the housing (5); and a second positioning means for positioning the housing (5) with respect to the frame (3) by moving the housing along a direction perpendicular to the axial direction of the rotation shaft (4) supported by the housing (5). Provided is a wire-drawing device, which can be assembled and adjusted easily and quickly.

Description

Drawing device

The present invention relates to a wire drawing device that is a wire drawing device for drawing a wire. More specifically, the present invention relates to a wire drawing device for drawing an arc welding wire.

As arc welding wires used in welding robots, in addition to solid solid wires, there are flux cored wires in which a steel strip with a narrow width is formed into a tubular shape and a core is filled with flux. .
These arc welding wires are manufactured by drawing a steel wire or a steel strip through a drawing device such as a hole die or a roller die. The wire drawing process for drawing steel wire rods and steel strips consists of a group of dies in which a plurality of wire drawing devices such as hole dies and roller dies are combined, and a wire drawing line in which a plurality of dies are arranged in series. It is realized by passing a steel wire or a steel strip.

In wire drawing of a wire rod, a plurality of hole dies and roller dies are often used. As such roller dies, there are wire drawing devices disclosed in

Patent Documents

1 and 2.
The wire drawing device disclosed in Patent Document 1 is a device that draws a wire with a roller die, a bearing that rotatably supports a pair of rollers constituting the roller die, a bearing box that holds the bearing, Each of the bearing boxes is fixed to the frame body via a bearing box fixing beam, and the bearing box fixing beam is used to adjust the distance between the rollers. The bearing is fixed to the frame by a bolt for use, and the bearing is held so as to be movable in the bearing box by a cap supported by a bolt for adjusting the position of the roller in the rotation axis direction. It is characterized by that.

The wire drawing device disclosed in Patent Document 2 is a wire drawing device that draws a wire through a wire formed in a die hole formed by a pair of roller dies having a die groove on the outer periphery, and includes a frame and one end side shaft , The one end side shaft portion and the other end side shaft portion whose extension line of the axis coincides with each other, and the eccentricity formed between these shaft portions and decentered with respect to the shaft center of the one end side and the other end side shaft portion A first and second eccentric shaft supporting shaft having a shaft portion and a cooling medium flow path inside the shaft; and the first shaft supporting shaft with the first eccentric shaft portion fixed to the eccentric shaft portion; and One roller die of the pair of roller dies is fitted and attached to the first bearing for rotatably supporting the one roller die, and the eccentric shaft portion of the support shaft with the second eccentric shaft portion. The other roller die of the pair of roller dies that is fixed Is mounted on the outside and the second roller die is rotatably supported, and the support shafts with the first and second eccentric shaft portions are slidably displaced in the axial direction of the frame body, respectively. First and second roller die axial position adjustment mechanisms for holding the first and second support shafts with eccentric shafts on the frame, respectively, the one end side and the other end side thereof The first and second roller die radial position adjusting mechanisms for holding the shaft portion so as to be capable of rotational displacement about the axis of the shaft portion.

JP 2005-34873 A JP 2007-283314 A

The drawing apparatus disclosed in Patent Document 1 adopts an indirect cooling method in which a cooling medium flow path is provided in a frame body that holds a roller die. Therefore, the heat generated by the roller die is not absorbed by the cooling medium unless it is transmitted to the frame body via the roller die bearing and the roller shaft. Therefore, it cannot be said that the wire drawing device of Patent Document 1 has a sufficient structure for cooling the roller die and the bearing, and the wire expansion cannot be suppressed and the wire diameter fluctuates. There is also a problem that the load of is high.

Further, the wire drawing device disclosed in Patent Document 2 has a configuration in which a roller die is assembled to an eccentric shaft having a cooling medium flow path. By cooling the eccentric support shaft to which the roller die bearing is attached, the cooling effect of the roller die and the bearing is improved, so that the thermal expansion of the roller die can be suppressed and the stability of the wire diameter can be improved. In addition, it is possible to reduce the load on the bearing and to extend the life of the bearing.

However, on the other hand, the drawing apparatus of Patent Document 2 requires skills that are skilled in assembly and adjustment. For example, when assembling the roller die, the support shaft is inserted into the through hole while holding the roller die at a predetermined position in the frame so that the position of the roller die bearing corresponds to the position of the through hole of the frame. And must be fitted into the bearing. To insert the support shaft into the bearing while inserting the shaft through hole, you must strike the support shaft while adjusting the force with a hammer, etc., but if the force is adjusted incorrectly, there is a risk of damage to the parts. is there.

In addition, it is necessary to adjust the position of the roller die after assembling the roller die. In particular, the eccentric support shaft must be adjusted to adjust the radial position of the roller die. Demanding skills. As these examples show, the drawing apparatus of Patent Document 2 requires skills that are skilled in assembling and adjustment, and therefore can only be handled by some skilled workers.

Therefore, an object of the present invention is to provide a drawing apparatus that can be assembled and adjusted in a simple and short time.

In order to achieve the above-described object, the present invention takes the following technical means.
The wire drawing device according to the present invention is a wire drawing device for drawing a wire through a wire hole formed by a pair of roller dies, the frame and a rotating shaft that rotatably supports the roller die. A rotating shaft that supports the roller die, and a supporting body that supports the rotating shaft that has been placed, and the supporting body. The first positioning means for positioning the frame relative to the frame body by moving along the axial center direction of the rotation shaft supported on the support body, and the support body of the rotation shaft supported by the support body And second positioning means for positioning with respect to the frame body by moving along a vertical direction perpendicular to the axial direction.

Preferably, the first positioning means presses both ends of the support in the axial direction of the rotation shaft that supports the roller die, and presses the support relative to the frame. It is good to have the fixing means which fixes the said press means with respect to the said frame.
Preferably, the pressing means may include a bolt that is provided so as to penetrate the frame body and applies a pressing force to the support body.

Preferably, the second positioning means pushes the non-supporting surface from the frame body side against the non-supporting surface which is a surface opposite to the surface on which the rotating shaft is placed in the supporting body. It is good to have a pushing means which applies force, and a pulling means which applies a force which pulls the non-supporting surface to the frame side.
Preferably, the pushing means includes a push bolt that is provided so as to penetrate the frame body and applies a force pushing the non-supporting surface from the frame body side, and the pulling means penetrates the frame body. It is preferable to have a pulling bolt that is provided and applies a force to pull the non-supporting surface toward the frame.

Preferably, the rotating shaft of the roller die has cooling means provided therein along the axis, and a supply port for supplying a cooling medium to the cooling means is provided at one end of the rotating shaft of the roller die. And having a discharge port for discharging the cooling medium from the cooling means at the other end of the rotating shaft.
Preferably, the frame has a notch at a position corresponding to the supply port and the discharge port, and the supply port and the discharge port formed in the rotating shaft are positioned with respect to the frame. It is good to be comprised so that it may move in the said notch part, without interfering with respect to the said frame, when doing.

The drawing apparatus according to the present invention can be assembled and adjusted easily and in a short time.

It is a schematic diagram which shows the wire drawing process of the wire for arc welding in which the wire drawing apparatus by embodiment of this invention is used. It is a front view of the drawing apparatus by this embodiment. It is a right view of the wire drawing apparatus by this embodiment. It is an upper side view of the drawing apparatus by this embodiment. It is a top side view of the housing of the wire drawing apparatus by this embodiment. It is a front view of the housing of the wire drawing apparatus by this embodiment. It is a right view of the housing of the wire drawing apparatus by this embodiment. It is a figure which shows in order the procedure which mounts the rotating shaft which supports a roller die on the housing of the wire drawing apparatus by this embodiment, and the housing which has mounted the rotating shaft in a frame.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, embodiment described below is an example which actualized this invention, Comprising: The structure of this invention is not limited only to the specific example. Therefore, the technical scope of the present invention is not limited only to the disclosed contents of the present embodiment.
Before describing the wire drawing apparatus 1 according to the embodiment of the present invention, an outline of a wire drawing process for drawing a wire will be described with reference to FIG. FIG. 1 is a diagram showing a wire drawing process for drawing a solid wire, a flux cored wire, or the like, which is an arc welding wire W, to a diameter required as a product.

The “roller die drawing” shown in FIG. 1 is a so-called secondary drawing process, which is a solid wire formed from a steel wire or steel strip that is a material in the primary drawing prior to the secondary drawing. Or a flux cored wire or the like is drawn to the diameter required for the product. Following “Roller Die Wire Drawing”, “Finish Wire Drawing” is performed to finish the drawn welding wire W to the final product diameter. After coating, it is wound up as a product.

The wire drawing device 1 according to the present embodiment includes a roller die 2 for drawing the welding wire W. A plurality of the drawing devices 1 are combined in series to form a die group 100. The plurality of die groups 100 are arranged in series, and a take-up capstan 101 that applies a constant tension to the welding wire W is provided on the die group 100. By arranging between them, a drawing line for performing “roller die drawing” and “finish drawing” is formed.

The configuration of the drawing apparatus 1 according to the present embodiment will be described with reference to FIGS. 2A to 2C. 2A is a front view showing the front surface of the drawing apparatus 1, FIG. 2B is a right side view of the drawing apparatus 1, and FIG. 2C is an upper side view (plan view) of the drawing apparatus 1. FIG.
In the present embodiment, the up-down direction toward the front view in FIG. 2A is associated with the up-down direction of the drawing apparatus 1, and the left-right direction toward the front view is also associated with the left-right direction of the drawing apparatus 1. The configuration of the drawing apparatus 1 will be described using the positional relationship. Therefore, the side when the drawing device 1 of FIG. 2A is viewed from the right side is shown in FIG. 2B as a right side view, and the side when the drawing device 1 is viewed from the upper side is shown in FIG. 2C as an upper side view (plan view). . 2A and 2B, the upper half from the symmetry axis S1 shows the appearance of the drawing apparatus 1 by a solid line, and the lower half shows the inside of the drawing apparatus 1 by a broken line.

Referring to FIG. 2A, the drawing apparatus 1 has a frame 3 formed so as to surround a substantially rectangular space inside. Two supports (housings) 5 on which a rotating shaft 4 for supporting the roller die 2 is placed are provided in a substantially rectangular space surrounded by the frame 3. The two

housings

5 and 5 are positioned with respect to the frame 3 so that the roller dies 2 and 2 face each other to form a mold hole. For the positioning of the housing 5, the wire drawing device 1 has a first positioning means for positioning in the axial direction of the rotary shaft 4 that supports the roller die 2, and a direction toward the roller die 2 facing (roller die 2. 2nd positioning means for positioning in the radial direction).

The wire drawing device 1 draws the welding wire W by passing the welding wire W, which is a wire, through a mold hole formed by the pair of opposed roller dies 2 and 2.
Hereinafter, the configuration of the drawing apparatus 1 will be described in detail.
As shown in the front view of FIG. 2A, the frame 3 is integrated so that four substantially rectangular parallelepiped steel members having substantially the same dimensions constitute upper and lower and left and right sides of a substantially square or a substantially rectangular shape. It is the member comprised by.

In other words, the frame 3 is composed of four steel members, an upper beam portion 6 corresponding to the upper side, a lower beam portion 7 corresponding to the lower side, a right beam portion 8 corresponding to the right side, and a left beam portion 9 corresponding to the left side. It is formed by becoming. Therefore, the substantially square or substantially rectangular frame 3 composed of the upper beam portion 6, the lower beam portion 7, the right beam portion 8, and the left beam portion 9 is substantially the same as the frame body 3 in the front view of FIG. It encloses a similar space. At this time, with respect to the frame 3 whose front is shown in FIG. 2A, the surface on the back side of the front is referred to as the back. Furthermore, the surface surrounding the space inside the frame 3 is called an inner peripheral surface, and the surface surrounding the outer side of the frame 3 is called an outer peripheral surface.

As shown in FIGS. 2A and 2B, each of the right beam portion 8 and the left beam portion 9 constituting the left and right sides of the frame body 3 has a depression formed in the central portion and the vicinity along the longitudinal direction, The thickness of the recess is reduced to about 1/2 to 1/3 (1/2 to 1/3) of the thickness of the portion adjacent to the recess. In particular, as shown in FIG. 2B, the portion where the thickness is reduced forms a concave portion in which the right beam portion 8 and the left beam portion 9 of the frame 3 are notched from the front to the back, The recesses are referred to as

notches

10a and 10b, and the surfaces constituting the

notches

10a and 10b in the right beam portion 8 and the left beam portion 9 are referred to as notch surfaces. Accordingly, the depth of the

notches

10a and 10b from the front surface of the frame 3 is 1/2 to 2/3 of the thickness of the portion adjacent to the

notches

10a and 10b (1/2 to 3 minutes). 2) About.

In addition, the

notches

10a and 10b are formed across the entire width of the right beam portion 8 and the left beam portion 9, and the right beam portion 8 and the left beam portion 9 along the longitudinal direction of the right beam portion 8 and the left beam portion 9. The left beam portion 9 is formed to occupy about 1/2 to 2/3 (1/2 to 2/3) of the entire length.
As shown in FIG. 2A, the frame 3 having the above-described

cutout portions

10a and 10b (that is, having a cutout surface) has the upper beam portion 6 and the lower beam portion 7 directed in the vertical direction and the right beam portion 8. When the left beam portion 9 is directed in the left-right direction, the configuration is symmetrical in the up-down direction and the left-right direction. As will be described in detail later, the drawing apparatus 1 configured by providing other structural members to the frame 3 shown in FIG. 2A also has the same structural members as the structural members provided in the lower half of the frame 3 in the upper half. Since it is provided, it has a configuration symmetrical in the vertical direction with respect to the symmetry axis S1. Therefore, in the following description, the configuration of the lower half of the frame 3 is described in detail, and then the components provided in the lower half of the frame 3 are described in detail, so that the entire drawing apparatus 1 is described.

Referring to the lower half of the frame 3 shown in FIG. 2A, the right concave portion recessed from the front side to the back side of the right beam portion 8 is provided below the cutout portion 10 a of the right beam portion 8 of the frame body 3. Is formed. The right concave portion is a depression that is shallower than the cutout portion 10a, and the depth from the front of the frame 3 is 1/3 to 1/2 of the depth of the cutout portion 10a (1/3 to 2 minutes). Of 1).
The right concave portion is formed on the left side of the right beam portion 8, that is, on the space side surrounded by the inner peripheral surface of the frame body 3, and the upper portion is opened to be continuous with the notch portion 10 a and the left side is opened to form the frame body. 3 is continuous with the surrounding space. In other words, the right concave portion includes a substantially square right step surface 11a that has receded from the front to the back side of the right beam portion 8, a right edge surface 12a that connects the right edge of the right step surface 11a to the front of the frame 3, and a right step. A lower edge surface 13 a that connects the lower edge of the surface 11 a to the front surface of the frame 3 is formed. The right step surface 11a is continuous with the inner peripheral surface of the frame 3 at the left edge, and is continuous with the cutout surface of the cutout portion 10a at the upper edge. The right stepped surface 12 a is formed with two screw holes that are internally threaded so as to be lined up and down along the longitudinal direction of the right beam portion 8.

Further, as shown in FIGS. 2A and 2B, the right beam portion 8 is formed with a through hole 14 a that penetrates the frame body 3 from the outer peripheral surface of the frame body 3 to the right edge surface 12 a of the right recess. This through-hole 14a has an opening substantially at the center of the right edge surface 12a of the right recess, and the inner surface of the through-hole 14a is partially or entirely threaded.
In addition, another through hole 15 a that penetrates the frame body 3 from the outer peripheral surface to the inner peripheral surface of the frame body 3 is formed on the back side of the frame body 3 with respect to the through hole 14 a. This through-hole 15a has an opening in the middle between the front surface and the back surface of the frame 3 on the outer peripheral surface and the inner peripheral surface, and the inner surface of the through-hole 15a is partially or entirely threaded. .

As shown in FIG. 2A, a through-hole 16a penetrating the frame body from the front side to the back surface of the frame body 3 is formed in the connection portion between the right beam portion 8 and the lower beam portion 7 below the right concave portion. . For example, the through hole 16a has a larger diameter than the through hole 15a formed from the outer peripheral surface of the frame body 3 toward the inner peripheral surface, and by inserting a connecting bar or the like. A plurality of drawing devices 1 can be connected in series.

The configuration of the right beam portion 8 has been described above for the lower half of the frame 3, but the left beam portion 9 has a configuration that is symmetrical with respect to the symmetry axis S <b> 2. Accordingly, the left beam portion 9 includes a left recess corresponding to the right recess, a left step surface 11b corresponding to the right step surface 11a, a left edge surface 12b corresponding to the right edge surface 12a, and a lower edge corresponding to the lower edge surface 13a. The surface 13b, the through hole 14b corresponding to the through hole 14a, the through hole 15b corresponding to the through hole 15a, and the through hole 16b corresponding to the through hole 16a are formed.

Here, with reference to FIG. 2A and FIG. 2C, the structure of the lower beam part 7 which connects the right beam part 8 and the left beam part 9 is demonstrated.
A lower center through hole 17 that is a circular through hole penetrating the lower beam portion 7 (frame body 3) from the outer peripheral surface to the inner peripheral surface is formed at a substantially central position along the longitudinal direction of the lower beam portion 7. ing. The central through hole 17 is formed substantially along the axis of symmetry S <b> 2 at the approximate center between the front surface and the back surface of the frame 3.

On the right side of the lower central through hole 17, a lower right through hole 18a, which is a circular through hole penetrating the lower beam portion 7 (frame body 3) from the outer peripheral surface to the inner peripheral surface, is formed. The lower right through hole 18 a is a through hole that forms an opening in the center of the lower central through hole 17 and the right beam portion 8 on the inner peripheral surface of the lower beam portion 7. And formed so as to be substantially parallel to the lower central through-hole 17. The inner surface of the lower right through hole 18a is threaded over a part or the whole.

Furthermore, a circular through hole 19a that penetrates the lower beam portion 7 (frame body 3) from the outer peripheral surface to the inner peripheral surface is also formed on the right side of the lower right through hole 18a. A guide pin 20a for guiding the positioning of the support body (housing 5), which will be described later, with respect to the frame body 3 is inserted and fixed in the through hole 19a. The guide pin 20a is a cylindrical member having substantially the same diameter as the through hole 19a, and protrudes from the inner peripheral surface of the lower beam portion 7 into the space surrounded by the frame body 3.

As shown in FIG. 2A, the protruding length of the guide pin 20a from the inner peripheral surface of the lower beam portion 7 is such that it does not reach the lower end of the notch portion 10a upward, and the tip of the guide pin 20a is In the right side view of 2B, it is located below the notch 10a.
The lower beam portion 7 forms a lower left through hole 18b at a position substantially symmetrical with the lower right through hole 18a with respect to the lower central through hole 17, and is also at a position substantially symmetrical with the guide pin 20a. One guide pin 20b is provided.

Next, referring to FIG. 3A to FIG. 3C and FIG. 4, the roller die 2 disposed in the space surrounded by the inner peripheral surface of the frame 3 and the support body (housing 5) for supporting the roller die 2 explain. 3A is an upper side view (plan view) showing an upper surface of the housing 5 of the wire drawing device 1 according to the present embodiment, FIG. 3B is a front view of the housing 5, and FIG. 3C is a right side view of the housing 5. FIGS. 4A and 4B are diagrams sequentially illustrating a procedure in which the rotating shaft 4 that supports the roller die 2 is placed on the housing 5 and the housing 5 on which the rotating shaft 4 is placed is disposed on the frame 3.

The roller die 2 is a member having a cylindrical shape or a disc shape, and is a wheel-like member that is provided with a bearing at a cylindrical or disc-shaped axial center position and can rotate around the axial center. In the roller die 2, a mold groove (caliber) for drawing a wire is formed along the circumferential direction on an outer peripheral surface corresponding to a tread surface of a wheel.
The rotating shaft 4 is a cylindrical member having substantially the same diameter as the bearing of the roller die 2, and is a cylindrical member having a cavity inside along the axis, and is inserted into the bearing of the roller die 2. It is fixed to the bearing. Thus, the rotating shaft 4 supports the roller die 2 so as to be rotatable about the rotating shaft 4.

The cavity inside the rotating shaft 4 is a cooling means for cooling the roller die 2 and the bearing by supplying a cooling medium, and an opening at one end of the rotating shaft 4 is an internal cavity serving as a cooling means. A supply port 21 for supplying a cooling medium from the outside is provided, and an opening 22 at the other end is provided with a discharge port 22 for discharging the cooling medium from the cooling means. The supply port 21 and the discharge port 22 are connectors (connectors) for connecting a coolant pipe to the opening of the rotating shaft 4. One end of the connector has the same diameter as the opening of the rotating shaft 4, and the other end has the same diameter as the cooling medium flow pipe.

Next, referring to FIGS. 3A to 3C, the housing 5 is a separate body from the frame 3, and the rotating shaft 4 that supports the roller die 2 is mounted thereon, and the mounted rotating shaft 4 is supported. The housing 5 is a member in which a central portion of a rectangular parallelepiped is cut out, and the dimension in the longitudinal direction is slightly shorter than the width in the left-right direction of the space surrounded by the frame body 3. That is, as shown in FIG. 3B, the housing 5 is a U-shaped member in which a concave portion is formed by reducing the thickness from the upper side surface to the lower side surface (bottom surface) side at the center portion. The central recess is a portion where the roller die 2 is disposed, and the depth thereof is sufficiently larger than the diameter of the roller die 2 disposed.

As shown in FIGS. 3A and 3B, a semicylindrical groove is formed on the upper side surface of the housing 5 along the longitudinal direction between the front side and the back side. This groove is a groove for placing the rotary shaft 4 that supports the roller die 2, and the curvature of the semi-cylindrical surface is substantially the same as the curvature of the surface of the rotary shaft 4 to be placed. At this time, since the bottom surface of the housing 5 is a surface positioned opposite to the upper side surface on which the rotating shaft 4 is placed, the bottom surface of the housing 5 may be referred to as a non-support surface.

Further, on the upper side surface of the housing 5, screw holes with internal threads are formed on the front side and the back side of the housing 5 with a groove for placing the rotating shaft 4 interposed therebetween. Specifically, as shown in FIG. 3A, two

screw holes

23a and 24a are formed with a groove on the right side of the recess, and two

screw holes

23b and 24b are also sandwiched with a groove on the left side of the recess. Is formed. These screw holes are used for screwing screws for fixing

fixtures

25 a and 25 b for fixing the rotating shaft 4 to the housing 5.

As shown in FIG. 3B, a pulling through hole 26 is formed in the center of the non-supporting surface of the housing 5 as a through hole corresponding to the lower central through hole 17 of the lower beam portion 7 in the frame 3 described above. Guide holes 27 a and 27 b into which the guide pins 20 a and 20 b of the lower beam portion 7 are inserted are formed on both ends in the left-right direction from the non-supporting surface of the housing 5 to the upper side surface. At this time, the diameters of the guide holes 27a and 27b are larger than the diameters of the guide pins 20a and 20b. The depth of the guide holes 27a and 27b is preferably larger than the length of the guide pins 20a and 20b. When the housing 5 is arranged so that the guide pins 20a, 20b of the frame 3 are inserted into the

guide holes

27a, 27b of the housing 5, the through hole 26 formed in the center of the non-supporting surface of the housing 5 The housing 5 is substantially opposed to the lower central through-hole 17 of the beam portion 7 and can move up and down along the guide pins 20a and 20b, and is formed between the guide holes 27a and 27b and the guide pins 20a and 20b. It is possible to move left and right by the gap.

Next, with reference to FIG. 4, the structure for the housing 5 to support the rotating shaft 4 which supports the roller die 2 is demonstrated.
As shown in FIG. 4A, first, the rotating shaft 4 that supports the roller die 2 is formed in a groove formed on the upper side surface of the housing 5 so that the roller die 2 is disposed in the recess of the housing 5. Place.

As shown in FIG. 4B, after the rotating shaft 4 is placed in the groove on the upper surface of the housing 5, two

screw holes

23 a and 24 a formed so as to sandwich the groove on the upper surface of the housing 5 are spanned. A fixing tool 25 a is provided above the rotating shaft 4, and a fixing tool 25 b that spans the screw holes 23 b and 24 b is provided above the rotating shaft 4. Then, the fixing

screws

25a and 25b are screwed into the screw holes 23a and 24a and the screw holes 23b and 24b on the upper surface of the housing 5 while passing through the fixing screws from above the

fixing tools

25a and 25b. Is fixed to the housing 5. By fixing the

fixtures

25 a and 25 b to the housing 5 in this way, the rotating shaft 4 sandwiched between the

fixtures

25 a and 25 b and the housing 5 is supported by the housing 5 and integrated with the housing 5. At this time, since the rotating shaft 4 is placed in a groove formed along the longitudinal direction of the housing 5, the axial center direction of the rotating shaft 4 and the longitudinal direction of the housing 5 (that is, the left-right direction in FIG. 4). Match.

Subsequently, as shown in FIG. 4C, the housing 5 integrated with the roller die 2 and the rotating shaft 4 is a guide pin of the frame 3 in a space surrounded by the inner peripheral surface of the frame 3. It arrange | positions so that 20a, 20b may be inserted in

guide hole

27a, 27b. Then, the housing 5 is positioned and fixed with respect to the frame 3 by the first positioning means and the second positioning means. Hereinafter, the configuration of the first positioning means and the second positioning means will be described.

The configuration of the first positioning means will be described with reference to FIG. 2 again. In the following description, the housing 5 integrated with the roller die 2 and the rotating shaft 4 is attached to the frame 3 so that the guide pins 20a and 20b of the lower beam portion 7 are inserted into the guide holes 27a and 27b. Assume the state of arrangement.
In the frame body 3 described above, the housing 5 is moved along the axial center direction (longitudinal direction of the housing 5) of the rotating shaft 4 supported by the housing 5, thereby positioning the housing 5 with respect to the frame body 3. Positioning means are provided.

The first positioning means has a pressing means for pressing the housing 5 and a fixing means for fixing the pressing means to the frame 3. The pressing means includes a right pressing piece 28a (not shown) that is screwed into a right pressing piece 28a disposed in the right concave portion and a through hole 14a having an opening in the right edge surface 12a to apply a pressing force to the right pressing piece 28a. The fixing means includes right fixing screws 30a and 31a that are screwed into screw holes formed in the right step surface 11a and press the right pressing piece 28a against the right step surface 11a.

The right pressing piece 28a is a rectangular parallelepiped member having substantially the same shape and size as the right concave portion, and has two substantially opposite planes having the same shape and size as the substantially quadrangular right step surface 11a. The right pressing piece 28a has two through holes penetrating the right pressing piece 28a from one of the two planes to the other plane. These two through holes are formed along the longitudinal direction of the right pressing piece 28a so that the distance between the respective centers is the same as the distance between the centers of the two screw holes formed in the right stepped surface 11a. The through hole has a diameter slightly larger than the screw hole of the right step surface 11a.

As shown in FIGS. 2A and 2B, the right pressing piece 28a having the above-described configuration is disposed on the right step surface 11a with the position of the through hole corresponding to the position of the screw hole of the right step surface 11a. Hardly protrudes from the front face and the notch 10a.
The right pressing screw 29a is screwed into the through hole 14a from the opening formed on the outer peripheral surface of the frame 3 and protrudes from the opening of the right edge surface 12a, so that the right pressing piece disposed on the right step surface 11a. 28a is pressed to the space side surrounded by the frame 3.

The right fixing screws 30a and 31a as fixing means are screws having the same diameter as that of the screw hole formed in the right stepped surface 11a and smaller than the diameter of the through hole of the right pressing piece 28a. The right fixing screws 30a and 31a are inserted into the through hole of the right pressing piece 28a disposed on the right step surface 11a and are screwed into the screw hole formed in the right step surface 11a and tightened. The right pressing piece 28a is pressed against the right step surface 11a with the heads of the right fixing screws 30a and 31a and fixed.

At this time, since the diameter of the through hole of the right pressing piece 28a is slightly larger than the diameter of the right fixing screws 30a and 31a, the clearance of the diameter of the through hole of the right pressing piece 28a with respect to the diameter of the right fixing screws 30a and 31a is as much as possible. The right pressing piece 28a can be moved by the right recess. Therefore, by adjusting the amount of protrusion from the opening of the right edge surface 12a of the right pressing screw 29a, the position of the right pressing piece 28a in the right and left direction in the right concave portion can be changed to the right pressing piece with respect to the diameter of the right fixing screws 30a and 31a. It is possible to adjust the clearance of the diameter of the through hole 28a.

The pressing means also has a configuration that is symmetrical with the configuration in the right recess with respect to the symmetry axis S2 in the left recess, and the left pressing piece 28b corresponding to the right pressing piece 28a and the left corresponding to the right pressing screw 29a. A pressing screw 29b is provided. The fixing means also has a configuration that is bilaterally symmetric with the configuration in the right concave portion with respect to the symmetry axis S2, and has left fixing

screws

30b and 31b corresponding to the right fixing screws 30a and 31a in the left concave portion. Needless to say, screw holes similar to the two screw holes formed in the right step surface 11a are also formed in the left step surface 11b.

As described above, the first positioning means has a left-right symmetric configuration, and presses the right pressing piece 28a and the left pressing piece 28b to both end faces (both ends) in the longitudinal direction of the housing 5, thereby causing the frame body 3 to press. On the other hand, the housing 5 can be positioned in the left-right direction (the axial center direction of the rotating shaft 4). After positioning the housing 5 with respect to the frame 3, the right pressing piece 28a is fixed with the right fixing screws 30a and 31a, and the left pressing piece 28b is fixed with the left fixing screws 30b and 31b. The frame 3 can be fixed in the axial direction of the rotary shaft 4.

After positioning the housing 5 by the first positioning means, a fixing screw is screwed into another through hole 15a penetrating the frame body 3 from the outer peripheral surface of the frame body 3 to the inner peripheral surface. The housing 5 can be pressed directly. In addition to the positioning by the first positioning means, the housing 5 can be more securely fixed to the frame 3 by using a fixing screw that directly presses the housing 5.

Further, the frame 3 is positioned with respect to the frame 3 by moving the housing 5 along a vertical direction perpendicular to the axial direction of the rotation shaft 4 of the roller die 2 supported by the housing 5. Second positioning means is provided.
The second positioning means includes pushing means for applying a force for pushing the housing 5 from the frame body 3 side, and pulling means for applying a force for pulling the housing 5 to the frame body 3 side.

The pushing means includes a right push bolt 32a threaded into the lower right through hole 18a formed in the lower beam portion 7 and a left push threaded to thread into the lower left through hole 18b. And a bolt 32b. For example, the right push bolt 32a is a sufficiently long bolt with respect to the entire length of the lower right through hole 18a, and is screwed into the lower right through hole 18a from an opening formed on the outer peripheral surface of the lower beam portion 7. It is provided so as to penetrate the frame 3. The right push bolt 32a projects from an opening formed on the inner peripheral surface of the lower beam portion 7 and applies a force pushing the bottom surface (non-supporting surface) of the housing 5 upward from the frame body 3 side.

Similarly to the right push bolt 32a, the left push bolt 32b penetrates the frame body 3 by screwing into the lower left through hole 18b, and the bottom surface (non-supporting surface) of the housing 5 is moved upward from the frame body 3 side. Apply pressing force.
Thus, the pushing means having the right push bolt 32 a and the left push bolt 32 b pushes the non-supporting surface, which is the bottom surface of the housing 5, toward the upper side surface of the housing 5 with respect to the substantially rectangular parallelepiped housing 5. Thus, the housing 5 can be moved upward, and the rotating shaft 4 supported on the upper side surface of the housing 5 can be moved along a vertical direction perpendicular to the axial center direction of the rotating shaft 4.

Further, the pulling means is constituted by a pulling bolt 33 which is a bolt longer than the length of the lower central through hole 17 formed in the lower beam portion 7 of the frame 3. The pulling bolt 33 has the same diameter as that of the pulling through hole 26 formed on the non-supporting surface of the housing 5 and is slightly smaller than the diameter of the lower central through hole 17 formed on the outer peripheral surface of the lower beam portion 7. The bolt has a through hole, inserted through the opening of the lower central through hole 17 formed on the outer peripheral surface of the lower beam portion 7, penetrates the lower central through hole 17, and is screwed into the pulling through hole 26 formed on the non-supporting surface. Match.

If the pulling bolt screwed into the pulling through hole 26 is tightened, a force for pulling the non-supporting surface toward the frame 3 can be applied. The housing 5 can be moved downward by pulling the non-supporting surface, which is the bottom surface of the housing 5, toward the lower side of the housing 5, and the rotary shaft 4 supported on the upper side surface of the housing 5 is replaced with the rotary shaft 4. It is possible to move along the vertical direction perpendicular to the axial center direction.

By using such pushing means and pulling means in cooperation, the housing 5 is positioned and fixed in the vertical direction (vertical direction perpendicular to the axial direction of the rotating shaft 4) with respect to the frame 3. Can do.
The above description is the description of the configuration of the lower half of the frame body 3 and the constituent members provided in the lower half of the frame body 3, and the configuration of the lower half of the drawing apparatus 1 according to the present embodiment. As described above, the wire drawing device 1 according to the present embodiment has a vertically symmetric configuration, and thus the frame 3 supports the rotary shaft 4 integrally with the rotary shaft 4 that supports the roller die 2. Two sets of housings 5 are provided, and a pair of roller dies 2 are opposed to each other.

In the wire drawing device 1 having such a configuration, the frame 3 has the

cutout portions

10a and 10b having a sufficient size with respect to the entire length of the right beam portion 8 and the left beam portion 9. The

cutout portions

10 a and 10 b are provided at positions corresponding to the supply port 21 and the discharge port 22 provided at both ends of the rotating shaft 4. As a result, when the housing 5 is positioned with respect to the frame 3, the supply port 21 and the discharge port 22 move in the

cutout portions

10 a and 10 b without interfering with the frame 3. Thus, the cooling medium flow pipe connected to the supply port 21 and the discharge port 22 does not interfere with the frame 3.

With respect to the opposing

housings

5 and 5, the position and interval of the opposing roller dies 5 and 5 can be easily adjusted by the second positioning means, and the die of the roller dies 5 and 5 facing by the first positioning means. It is possible to easily adjust the deviation of the groove in the left-right direction.
In addition, the drawing apparatus 1 according to the present embodiment integrates the roller die 2 and the rotary shaft 4 with the housing 5 separate from the frame 3 before positioning the housing 5 and the roller die 2, The body housing 5 is provided on the frame 3. That is, in assembling the drawing apparatus 1, it is not necessary to assemble the rotating shaft 4 directly to the frame body 3, so that the assembling of the drawing apparatus 1 becomes very easy. Furthermore, since there is no need to change the position of the rotating shaft 4 with respect to the roller die 2 when positioning the roller die 2, the position of the roller die 2 is very easily and accurately determined by the first positioning means and the second positioning means. Can be adjusted.

The drawing apparatus 1 (hereinafter referred to as the main drawing apparatus) described in the above embodiment and the conventional drawing apparatus disclosed in Patent Document 2 will be described below in terms of time required for assembly, time required for adjustment, and disassembly. Table 1 below summarizes the time taken to complete.

An operator who is not skilled in the drawing apparatus, the conventional drawing apparatus, or any of the drawing apparatuses measured the time required for assembly, adjustment, and disassembly of each drawing apparatus.
As a result, the time required for assembly is about 25 minutes to 30 minutes for the conventional drawing apparatus, but about 15 minutes for the main drawing apparatus. This drawing apparatus is not only completed in about half of the time required for the conventional drawing apparatus, but is assembled in a short time of about 15 minutes, so it can be said that it is a drawing apparatus that requires little operator skill. .

This is because the main wire drawing device employs a configuration in which the rotating shaft 4 of the roller die 2 is placed in a groove formed on the surface of the housing 5, and this configuration requires a conventional wire drawing device. Therefore, it is necessary to carefully perform the operation of fitting the rotating shaft directly into the frame body, and the time-consuming work can be omitted.
Next, the adjustment time was 1 minute in both the main drawing apparatus and the conventional drawing apparatus, and no difference was found in at least the time required for adjustment.

However, the main line drawing apparatus includes a right pressing piece 28a and a right pressing screw 29a, which are first positioning means provided in the frame 3 to position the rotating shaft 4 supporting the roller die 2 in the axial direction. The housing 5 is positioned by pressing both ends of the housing 5 in the axial direction (left-right direction) of the rotating shaft 4 using the left pressing piece 28b and the left pressing screw 29b.
In this way, the roller die 2 is positioned by adjusting the position of the housing 5 that supports the rotating shaft 4 instead of directly adjusting the position of the rotating shaft 4, so the deflection or insufficient holding of the rotating shaft 4 is insufficient. The roller die 2 can be easily positioned while avoiding the above.

In addition, the main line drawing apparatus is configured to position the roller die 2 in the radial direction (vertical direction perpendicular to the axial center direction of the rotating shaft 4) by the

push bolts

32a and 32b and the pull bolt 33 which are the second positioning means. This is done by pushing and pulling 5. In this way, the main line drawing apparatus can position the roller die 2 in the radial direction by pushing and pulling the housing 5, so that the radial position can be easily determined regardless of the tightening torque of the rotating shaft 4. be able to.

Finally, the time required for disassembly is about 5 to 7 minutes for the conventional drawing apparatus, but about 3 to 5 minutes for the main drawing apparatus.
The wire drawing apparatus realized a reduction of about 2 minutes in the time required for disassembly. This is due to the following reason. In the positioning method (position adjustment method) by the first positioning means and the second positioning means of the wire drawing apparatus, the operating range of the housing 5 in the radial direction of the roller die 2 is ensured to be equal to or larger than the diameter of the rotary shaft 4. Can do. Thus, by ensuring the operating range of the housing 5 to be equal to or larger than the diameter of the rotating shaft 4, the rotating shaft 4 with the roller die 2 attached can be removed from the housing 5 without removing the housing 5 from the frame 3. It is. Similarly, the housing 5 can be detached from the frame 3 without disassembling the frame 3.

Finally, there was no difference in the time required for adjustment between the main drawing apparatus and the conventional drawing apparatus. However, this wire drawing device has an easier adjustment method than conventional wire drawing devices, so that the rotation shaft is bent or insufficiently held due to tightening torque strength or the like that may be caused by the difference in skill of the operator. The problem of quality degradation such as movement of the image can be solved.

In other words, the present drawing apparatus employs a configuration in which the rotating shaft 4 is held by the housing 5 separate from the frame body 3, and therefore, parts that require skill in assembly, adjustment, and disassembly are remarkably compared to conventional drawing apparatuses. We succeeded in reducing it to less. At the same time, by the first positioning means and the second positioning means, the main line drawing apparatus can realize a structure that can be assembled and adjusted easily and in a short time without requiring a particularly skilled skill.

Further, the frame body 3 has the

notches

10 a and 10 b at positions corresponding to the supply port 21 and the discharge port 22 provided at both ends of the rotating shaft 4, so that the housing 5 is attached to the frame body 3. When positioning, the supply port 21 and the discharge port 22 were able to be moved within the

notches

10a and 10b without interfering with the frame 3.
For example, in the drawing apparatus 1 having the configuration shown in FIG. 2A, a supply port (connector) 21 is provided at the right end of the rotary shaft 4 mounted on the upper housing 5, and a discharge port (connector) 22 is provided at the left end. A discharge port (connector) 22 is provided at the right end of the rotating shaft 4 placed on the lower housing 5, and a supply port (connector) 21 is provided at the left end. Then, the discharge port 22 of the lower rotary shaft 4 and the supply port 21 of the upper rotary shaft 4 were directly connected by a cooling medium flow pipe passing through the notch 10 a on the right side of the frame 3. By connecting the upper and lower

rotary shafts

4 and 4 with the flow pipes in this way, the right notch 10a is supplied while supplying the cooling medium to the supply port 21 of the lower rotary shaft 4 through the left notch 10b. The cooling medium that has flowed from the lower rotating shaft 4 to the upper rotating shaft 4 through the distribution pipe can be discharged from the discharge port 22 of the upper rotating shaft 4 through the left notch 10b. It was.

As described above, the frame 3 has the

notches

10a and 10b, so that the supply port 21 and the discharge port 22 can be easily moved, and the cooling medium connected to the supply port 21 and the discharge port 22 Since the flow pipe does not interfere with the frame 3, the main drawing apparatus can be assembled and adjusted in a short time while realizing high cooling efficiency for directly cooling the rotating shaft 4 holding the roller die 2. The structure could be realized.

By the way, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, such as operating conditions and measurement conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that is normally implemented by those skilled in the art. Instead, values that can be easily assumed by those skilled in the art are employed.

For example, in the first positioning means and the second positioning means, a force that pushes or pulls the housing 5 is applied using a bolt that penetrates the frame 3. However, the first positioning means and the second positioning means may be configured using members other than bolts as long as they are members or mechanisms that can apply the same force.

DESCRIPTION OF SYMBOLS 1 Wire drawing apparatus 2 Roller die 3 Frame 4 Rotating shaft 5 Housing 6 Upper beam part 7 Lower beam part 8 Right beam part 9

Left beam part

10a, 10b Notch part 11a, 11b

Right step surface

12a, 12b

Right edge surface

13a, 13b

Lower edge surface

14a, 14b Through

hole

15a, 15b Through

hole

16a, 16b Through hole 17 Lower center through hole 18a Lower right through hole 18b Lower left through

hole

19a, 19b Through

hole

20a, 10b Guide pin 21 Supply port 22

Discharge port

23a,

24a Screw hole

25a, 25b Fixing tool 26 Through

hole

27a,

27b Guide hole

28a, 28b Right pressing piece 29a, 29b Right

pressing screw

30a, 31a

Right fixing screw

32a, 32b Right pressing bolt 33 Pulling bolt 100 Die group 101 Take-up Capstan S1, S2 Symmetry line W Welding wire

Claims

A wire drawing device for drawing a wire through a wire formed in a mold hole formed by a pair of roller dies,
A frame,
A rotating shaft that rotatably supports the roller die;
A separate body from the frame body, on which a rotary shaft that supports the roller die is mounted, and a support body that supports the rotary shaft placed above,
First positioning means for positioning with respect to the frame body by moving the support body along the axial direction of the rotating shaft supported by the support body;
Second positioning means for positioning the support body with respect to the frame body by moving the support body along a vertical direction perpendicular to an axial center direction of the rotation shaft supported by the support body. A drawing apparatus characterized by.
The first positioning means comprises:
A pressing means for positioning the support relative to the frame by pressing both ends of the support in the axial direction of the rotation shaft supporting the roller die;
The drawing apparatus according to claim 1, further comprising a fixing unit that fixes the pressing unit to the frame.
3. The wire drawing apparatus according to claim 2, wherein the pressing means includes a bolt that is provided so as to penetrate the frame body and applies a pressing force to the support body.
The second positioning means comprises:
A pushing means for applying a force to push the non-supporting surface from the frame side to a non-supporting surface that is a surface opposite to the surface on which the rotation shaft is placed in the support;
The drawing apparatus according to any one of claims 1 to 3, further comprising drawing means for applying a force to pull the non-supporting surface toward the frame body.
The pushing means is provided so as to penetrate the frame body and has a push bolt for applying a force to push the non-supporting surface from the frame side;
The wire drawing apparatus according to claim 4, wherein the pulling unit includes a pulling bolt that is provided so as to penetrate the frame and applies a force that pulls the non-supporting surface toward the frame.
The rotation axis of the roller die has cooling means provided therein along the axis, and a supply port for supplying a cooling medium to the cooling means is provided at one end of the rotation axis of the roller die. The drawing apparatus according to claim 1, further comprising: a discharge port for discharging the cooling medium from the cooling unit at the other end of the rotating shaft.
The frame has a notch at a position corresponding to the supply port and the discharge port;
A supply port and a discharge port formed in the rotating shaft are configured to move within the notch without interfering with the frame when the support is positioned with respect to the frame. The drawing apparatus according to claim 6, wherein