JP3104141U - Extrusion equipment for plastic plate - Google Patents

Abstract

Extrusion capable of molding a composite structure plastic plate having a hard and soft dual density with a plastic plate having a composite structure having a hard and soft dual density and a plastic plate having a cloth adhered to the surface thereof. A molding device is provided.
A first extruder (22) and a second extruder (23) for simultaneously feeding thermoplastic materials having different densities to a heating die head (21) by a heating feed pipe are provided, and an extruder (24) is provided after the heating die head. Was. A first extruder and a second extruder for simultaneously feeding thermoplastic materials having different densities to a heating die head by a heating feed pipe 221 are attached, and upper and lower roll-shaped fabrics 243 are provided at upper and lower positions in front of the press, respectively. A shaft is provided for supplying the lower fabric 244, and a spreading machine is provided for simultaneously spreading the high and low density molten thermoplastic materials in the heating die head and the upper and lower fabrics and welding them to each other. Was.
[Selection diagram] Fig. 1

Description

  The present invention relates to an apparatus for extruding a plastic plate.

  As shown in FIGS. 7 and 8, a conventional extruder for plastic plate has a single extruder (12) directly connected to a heating die head (11), and a heating feeder of the extruder (12). The thermoplastic material is sent to a heating die head (11) by a pipe (13), and is further formed by being passed between rollers (15) of a pressing machine (14) to be formed into a plastic plate. ) To be sent sequentially to the rear.

  Since the density and hardness of the plastic plate (17) manufactured in this way are all the same, for example, the hardness (curvature of the toe portion and the heel portion of the sole plate in the shoe made by cutting it) And elasticity) cannot be distinguished. In addition, when further attaching a cloth layer to the bottom surface of the plastic plate (17), it must be spread flat by a roller. Not only does it take time, but it also requires the purchase of a separate press, so the investment and processing costs for it have not met the needs of the times. In addition, it is a problem that the company wants to break through as much as possible because it is not competitive.

A first object of the present invention is to provide an extrusion molding apparatus capable of molding a plastic plate having a composite structure having high and low densities of hard and soft double densities.
A second object of the present invention is to provide an extrusion molding apparatus capable of molding a plastic plate having a composite structure having high and low densities of hard and soft double densities on a plastic plate having a cloth adhered to its surface. To provide.

In order to solve the first problem, the invention of claim 1 comprises assembling two extruders in front of a heating die head, whereby thermoplastic materials having different densities are combined with a first extruder and a second extruder. The extruder was pressed simultaneously or at different times into a heating die head by a heating feed pipe of the extruder, and was further welded to each other via the developing pressure of a roller of an expanding machine to form a plastic plate.
According to the above configuration, the first extruder and the second extruder are connected to the heating die head, and thermoplastic materials having different densities are respectively fed to the heating die head by the heating feed pipes of the two extruders. Since the high and low density molten thermoplastic materials in the heating die head are simultaneously expanded and welded through the rollers of the expanding machine, the high density and low density dual density (hardness is different) A plastic plate having a composite structure is molded.

In order to solve the second problem, the invention according to claim 2 comprises a first extruder and a second extruder for simultaneously feeding thermoplastic materials having different densities to a heating die head by a heating feed pipe, and comprises an extruder. A shaft provided for supplying a roll-shaped upper fabric and a lower fabric respectively at the upper and lower positions in front of the rotatable rotatable, high and low density molten thermoplastic material in the heating die head and The upper and lower fabrics are simultaneously spread, and by providing a spreading machine that welds each other, the fabric is attached to the surface, and a plastic plate having a composite structure having a high density and a low density, a hard and a soft double density is formed. It was configured to be.
With the above configuration, the upper fabric and the lower fabric are supplied from shafts provided at the upper and lower positions in front of the press, and the high and low density molten thermoplastic materials in the heating die head and the upper and lower fabrics are supplied. At the same time, they are spread via rollers of a spreading machine and are welded to each other, so that a plastic plate having a cloth adhered to the surface is formed. Therefore, the plastic plate has a composite structure in which cloth is stuck to the surface and has a double density (having different hardness) of high density and low density. For example, it is the most comfortable, strong and durable basic material for the sole plate in shoes. In addition, the production speed is high due to the integrated production, and the economic effect is remarkable.

  According to the first aspect of the present invention, it is possible to mold a plastic plate having a composite structure having a high density and a low density (differing in hardness) with a single extrusion device.

  According to the invention of claim 2, the fabric is stuck on the surface and the plastic plate of the composite structure having the high density and the low density (differing in hardness) with one extruder. Molding is possible. For example, when applied to a sole plate in shoes, it is the most comfortable, strong and long lasting basic material.

  The extruder according to the present invention comprises, as a basic configuration, a first extruder and a second extruder for simultaneously feeding thermoplastic materials having different densities to a heating die head by a heating feed pipe. After that, an expansion machine is installed.

  The extrusion equipment, which forms a composite plastic plate with a double-density (different hardness) with fabric attached to the surface, uses thermoplastic feed pipes with different densities to the heating die head through a heating feed pipe. Attach the first extruder and the second extruder that feed simultaneously, and provide rotatable shafts for supplying upper and lower roll-shaped fabrics at upper and lower positions in front of the press, respectively. An extruder is provided for simultaneously extruding the high and low density molten thermoplastic material in the heating die head and the upper and lower fabrics and welding them together.

An embodiment of the present invention will be described with reference to FIGS.
1 is a perspective view of the first embodiment, FIG. 2 is a side view of the same, and FIG. 3 is an enlarged sectional view of a product of the device of the present invention.

  The embodiment is an example of an extruder for molding a plastic plate having a cloth adhered to a surface thereof, and a first extruder (22) and a second extruder (21) are provided before a heating die head (21). 23) is attached. Thereby, thermoplastic materials of different densities are simultaneously fed into the heating die head (21) by the heating feed pipes (221) (231) of the first extruder (22) and the second extruder (23). It is. Furthermore, shafts (241) and (242) are provided at the upper and lower positions in front of the press (24) to supply a roll-shaped upper fabric (243) and a lower fabric (244), respectively. .

  Thus, the high and low density molten thermoplastic material in the heating die head (21) and the upper and lower fabrics (243) and (244) are simultaneously expanded through the rollers (245) of the expansion machine (24). Then, they are welded to each other to form a plastic plate (31) having a cloth adhered to the surface. The plastic plate is successively transported to the rear by several guide rollers (25) which stretch it.

  As shown in FIG. 3, the plastic plate (31) thus obtained has a composite structure having a high density (311) and a low density (312) having a double density (different in hardness). It is the most comfortable, strong and durable basic material, such as the inner bottom plate. In addition, since the forming of the composite structure plastic plate and the attaching of the fabric are performed almost simultaneously, the manufacturing process is extremely simple and convenient, the production efficiency is high, and the economic effect is remarkable.

  4 is a perspective view of a second embodiment of the present invention, FIG. 5 is a perspective view of a third embodiment of the present invention, and FIG. 6 is a perspective view of a fourth embodiment of the present invention. As shown in FIGS. 4 to 6, the heating feed pipe (231) of the second extruder (23) of the present invention may be mounted on the right or left side of the heating die head (21) or on the upper side. . In any case, layered extrusion of thermoplastic materials having different densities is possible in combination with the first extruder (22).

  Depending on the mounting positions of the first extruder (22) and the second extruder (23) with respect to the heating die head (21) and the way of setting the extrusion timing from the heating feed pipe, the double density (hardness is The composite structure can be developed into a two-layer structure having a different density in the thickness direction, an alternating structure having a different density in the molding direction, and the like.

Perspective view of the first embodiment Same side view FIG. 4 is an enlarged sectional view of a product of the present invention device. 2 is a perspective view of a second embodiment of the present invention. The perspective view of the third embodiment of the present invention. 4 is a perspective view of a fourth embodiment of the present invention. FIG. FIG.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 21 Heating die head 22 First extruder 23 Second extruder 221 Heating feed pipe 243,244 Roll-shaped upper fabric and lower fabric 24 Expanding machine

Claims (4)

  A first extruder and a second extruder for feeding thermoplastic materials having different densities to a heating die head simultaneously or at different times by a heating feed pipe are attached, and an extruder is provided after the heating die head. Extrusion molding equipment.   A first extruder and a second extruder that simultaneously feed thermoplastic materials of different densities to the heating die head by a heating feed pipe are installed, and roll-shaped upper and lower fabrics are placed above and below the extruder, respectively. Providing a shaft provided for supplying the fabric, and providing a spreading machine for simultaneously spreading the high and low density molten thermoplastic materials in the heating die head and the upper and lower fabrics and welding them to each other. An extrusion molding apparatus characterized in that a cloth is adhered to the surface of the composite sheet to form a plastic plate having a high-density and low-density composite structure having hard and soft double densities.   3. The extrusion molding apparatus according to claim 2, wherein the heating feed pipe of the second extruder is attached to the right or left side of the heating die head. 3. The extruder according to claim 2, wherein the heating feed pipe of the second extruder is mounted on a heating die head.

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