JPH06705U - Variable mold - Google Patents

Abstract

(57) [Summary] [Purpose] The manufacturing cost can be made low and the manufacturing is easy,
The molded product can be discharged without the shape of the molded product being collapsed. [Structure] The variable mold 1 includes vertically movable upper and lower die bodies 5 and 5a for adjusting the height of the extrusion molding port 3 and horizontally movable left and right sides for adjusting the width of the molding port. It has a die body 6 and upper and lower shaping bodies 9 and 9a attached to the upper and lower die bodies so as to be horizontally movable. The shaping bodies 9 and 9a are also attached to the side die body 6. The upper and lower shaping bodies are arranged on the outlet side of the facing gap 10 between the upper and lower die bodies, and the gap 33 between the upper and lower shaping bodies has the same width as the facing gap and communicates with the molding port.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a variable mold used for, for example, a molding machine for extruding cement-based building materials.

[0002]

[Prior art]

 Conventionally, as a cement-based building material, there is an embedded formwork, for example. This embedded formwork is used as a formwork for pillars, beams, etc. on site, and becomes part of the pillars, beams, etc. without removing the mold after curing concrete. The method of manufacturing the embedded mold is to insert a molding material such as cement from the input port of the vacuum extrusion molding machine, extrude the molding material through the vacuum degassing chamber, and extrude it from the molding port to match the size of the molded product. The mold product is molded through the die attached to the.

[0003]

[Problems to be solved by the device]

 According to the conventional example, since the dies are replaced according to the size of the molded product, it is necessary to prepare various kinds of dies in advance, the more the types of dies are, the more the manufacturing cost is, and the dies for each size of the molded product are required. However, there was a problem that it took time to manufacture because it was forced to replace.

The object of the present invention is to reduce the manufacturing cost as compared with the conventional example so that the manufacturing is not troublesome, and another object of the present invention is to prevent the shape of the molded product from being deformed. It is to be able to discharge the molded product.

[0005]

[Means for Solving the Problems]

 The variable die of this invention is connected to the molding port and has upper and lower dies for adjusting the height of the molding port and left and right side dies for adjusting the width of the molding port. , An operating means for moving one or both of the upper and lower die bodies up and down, an operating means for moving the side die body in the width direction of the molding port, and both the upper and lower die bodies and the left and right side die bodies. It is equipped with upper and lower shaped bodies that are attached. The means for operating the upper and lower dies or one of the dies and the side dies can be manually or automatically driven. The upper and lower shaping bodies are horizontally movably mounted on the outlet sides of the facing gaps of the upper and lower die bodies, respectively, and the gap between the upper and lower shaping bodies has the same width as the facing gap and communicates with the molding port. .

[0006]

[Action]

 The height of the molding port is adjusted by vertically moving one or both of the upper and lower dies, and the width is adjusted by sliding one or both of the side dies. It is possible to cope with changes in the size of the molding port. When adjusting the height and width, the position of the molded body is adjusted at the same time, and both sides of the molded product discharged from the molding port are guided to the molded body, and the shape deformation of the molded product is regulated.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The variable mold 1 is attached to an end of the vacuum extrusion machine 2 on the side of the extrusion molding port 3 (left end in FIG. 1) via a connecting plate 4, and is continuously provided to the extrusion molding port.

The variable mold 1 includes upper and lower die bodies 5, 5 a for adjusting the height of the extrusion molding port 3 and left and right side die bodies 6, 6 a for adjusting the width of the extrusion molding port 3. Of the upper die body 5 and the lower die body 5a, the operating means 7, 7a for moving the left and right side die bodies to the left and right, and the upper and lower die bodies and the left and right side die bodies. The upper and lower shaping bodies 9, 9, 9a, 9a attached to both sides are provided.

As shown in FIG. 1, the upper and lower dies 5, 5 a face each other with a predetermined facing gap 10 therebetween, and this facing gap communicates with the extrusion molding port 3. The upper and lower dice bodies 5 and 5a are formed to have an L-shaped side cross section.

Here, the support state of both die bodies 5 and 5a and the operating means 7 and 7a will be described. A rectangular guide 12 is arranged outside the upper and lower dies 5, 5a with a predetermined gap 11 (FIG. 1) surrounding the dies. The guide 12 is fixed to the connection plate 4 by bolts 13.

The operation means 7 for moving the upper die body 5 up and down will be described. As shown in FIGS. 1 and 2, in the upper die body 5, motors 14 and 14 are arranged on both upper sides of a guide 12, and both motors are fixed to a base 15 passed to a base leg. The slide bolt 16 connected to the drive shaft of each motor 14 is suspended, and the lower portion thereof is screwed into the female screw hole 17 of the upper die body 5.

Therefore, the rotational force of the motor 14 is transmitted to the upper die body 5 through the slide bolt 16 and the female screw hole 17, so that the upper die body moves up and down.

The support state of the lower die body 5a and the operating means 7a will be described. The supporting state of the lower die body 5a is substantially the same as the supporting state of the upper die body 5. Further, in the operating means 7a, slide bolts 16a penetrate vertically through the guides on both sides of the lower part of the guide 12, and the upper portions of the slide bolts 16a are screwed into the female screw holes 17a of the lower die body 5a. The lower portion of each slide bolt 16a projects below the guide 12, and sprockets 18, 18 are attached to the projecting ends. Of the slide guides 24 and 24a described later, a bracket 19 is fixed to the front surface of the central portion of the lower slide guide 24a, and a handle pin 20 for rotation is hung from the bracket. (Not shown) is attached. A sprocket 21 is attached to the handle pin 20, and an endless chain 22 is wound around the sprocket 21 and the sprocket 18.

Therefore, when the handle is turned, its rotational force is transmitted to the lower die body 5a via the sprockets 21 and 18 and the slide bolt 16a, so that the lower die body moves up and down.

The left and right side die bodies 6, 6 a are arranged at both left and right ends of the variable mold 1. The side die bodies 6 and 6a are made of substantially rectangular plates as shown in FIGS. Seats 23, 23a having female screw holes are attached to one side of the front surface of the side die bodies 6, 6a.

Here, the support state of the side die bodies 6 and 6a and the operating means 8 and 8a will be described. The side die bodies 6, 6a are supported on the upper and lower sides thereof so as to be horizontally movable by upper and lower slide guides 24, 24a as shown in FIGS. The slide guides 24 and 24a are fixed to the upper and lower sides of the guide 12 by bolts 13. On the front surfaces of the slide guides 24, 24a, upper and lower tip plates 25, 25a are horizontally attached over substantially the entire length of the slide guides. As shown in FIGS. 1 and 2, the left and right seats 23, 23a are pivotally supported by the tip portions of the left and right slide bolts 27, 27a to which the rotational drive of the motors 26, 26a is transmitted. Therefore, the drive of the motors 26, 26a causes the slide bolts 27, 27a pivotally supported by the seats 23, 23a to slide in the left and right directions in FIGS. 2 and 3, and as a result, the side die bodies 6, 6a move in the horizontal direction. Can be moved to.

The upper and lower shaping bodies 9 and 9a will be described. As shown in FIGS. 1 and 2, the upper and lower shaping bodies 9 and 9a are arranged in pairs on both sides of the upper and lower dice bodies 5 and 5a, and one side (right side of FIG. 1) of the upper and lower dice bodies is arranged. It is horizontally movably connected to the outlet side of the facing gap 10 via connecting grooves 28 and 28a. The gap 33 between the upper and lower shaping bodies 9 and 9a has the same width as the facing gap 10 between the upper and lower die bodies 5 and 5a and communicates with this facing gap. The other sides of the upper and lower shaping bodies 9 and 9a are attached to holding bodies 30 and 30a supported by brackets 29 and 29, respectively. Pins 31 and 31a project from the holders 30 and 30a toward the bracket 29, and the pins can move up and down irremovably in the long holes 32 and 32a formed in the bracket. The bracket 29 is attached to the side dies 6, 6a.

Therefore, the upper and lower shaping bodies 9 and 9a move up and down as the upper and lower die bodies 5 and 5a move vertically, and horizontally as the left and right side die bodies 6 and 6a move horizontally. Moving.

Next, the operation of adjusting the size of the extrusion molding port 3 will be described. First, the height adjusting operation of the extrusion molding port 3 will be described. Since the slide bolts 16 and 16a are rotated by driving the motor 14 or by rotating the handle shown in FIG. 1, the upper die body 5 and the lower die body 5a screwed to the slide bolts are It moves up and down, and at the same time, the gap 33 between the upper and lower shaping bodies 9 and 9a is adjusted by the same amount.

As a result, since the facing gap 10 between the upper and lower die bodies 5, 5a changes, the height of the extrusion molding port 3 is adjusted. At this time, in order to improve the accuracy of adjustment, it is preferable to move one or both of the upper die body 5 and the lower die body 5a up and down while using the scale 34 attached to the bracket 29.

Next, an operation of adjusting the width of the extrusion molding port 3 will be described. By driving one or both of the left and right motors 26, 26a, the side die bodies 6, 6a connected to the slide bolts 27, 27a via the seats 23, 23a move horizontally. The side die body moves according to the rotation angle of the slide bolts 27, 27a, the position of each side die body changes, and the distance between the facing side die bodies changes, so that the width of the forming port is adjusted. become. At this time, the upper and lower shaping bodies 9 and 9a simultaneously move horizontally by the same distance, and the facing distance is also adjusted.

In this way, the respective positions of the upper and lower die bodies 5, 5a and the left and right side die bodies 6, 6a are moved by driving the operating means 7, 7a, 8, 8a to perform extrusion molding. The height width of the mouth 3 is arbitrarily adjusted to correspond to the size of the extruded product.

Further, the molded product discharged from the facing gap 10 of the upper and lower die bodies 5, 5a through the extrusion molding port 3 is formed by the presence of the shaping bodies 9, 9a arranged on both sides of the exit portion of the facing gap. , Both sides are prevented from expanding and losing their shape.

Although the operating means 7, 7a, 8, 8a are composed of a motor, a handle, a sprocket, etc., even if the upper and lower dies 5, 5a and the side dies 6, 6a can be moved by using, for example, a hydraulic cylinder. Good.

[0025]

[Effect of device]

 According to this invention, since the upper and lower dice bodies for adjusting the height and width of the molding port and the side die body are provided, it is not necessary to replace the dice for each molded product unlike the conventional example. Since it is not necessary to prepare many types of dies, the manufacturing cost can be kept low, the labor for manufacturing can be saved, and the work efficiency can be improved. In addition, the molded product discharged from the facing gap between the upper and lower dies through the molding port has both sides widened and the shape is distorted due to the presence of the shaping body located on both sides of the exit portion of the facing gap. It is possible to provide a molded product which is prevented and has a good shape.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the present invention.

FIG. 3 is a partially cutaway plan view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Variable mold 2 Vacuum extrusion molding machine 3 Molding port (extrusion molding port) 5 Upper die body 5a Lower die body 6 Side die body 6a Side die body 7 Operating means 7a Operating means 8 Operating means 8a Operating means 9 Upper shaping body 9a Lower shaping body 10 Opposed gap 14 Motor 16 Slide bolt 16a Slide bolt 17 Female screw hole 17a Female screw hole 23 Receptor 23a Receptor 24 Slide guide 24a Slide guide 26 Motor 26a Motor 27 Slide bolt 27a Slide bolt 33 Gap

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Takaaki Nishi, 3-9-1 310 Ikuta, Tama-ku, Kawasaki City, Kanagawa Prefecture (72) Shinichi Kito 3-82, Kosai Town, Hekinan City, Aichi Prefecture

Claims (1)

[Scope of utility model registration request] 1. A top / bottom die body that is connected to a molding port and is used to adjust the height of the molding port, and left and right side die bodies that are used to adjust the width of the molding port. The moving means for moving at least one of the die bodies up and down, the moving means for moving the left and right side die bodies in the width direction of the molding port, and both the upper and lower die bodies and the left and right side die bodies. The upper and lower shaping bodies are attached to the outlet sides of the facing gaps of the upper and lower die bodies respectively so as to be horizontally movable, and the gap between the upper and lower shaping bodies is A variable mold having the same width as the facing gap of the upper and lower dice bodies and communicating with the facing gap.