JPH0634912U - Recycler for thermoplastic synthetic resin foam - Google Patents

Abstract

(57) [Abstract] [Purpose] A crushed foamed synthetic resin is eliminated by two small upper and lower heating cylinders to eliminate various unnecessary gases and air at two locations, and to ensure reliable degassing. Is a device for forming shaku pellets and passing them through a cooling water tank to produce pellets of various sizes with a pelletizer. [Structure] A lower end of a hopper (1) having a crushed foam is connected to an end of an upper heating cylinder (2), and an upper die part (3) is provided at the other end of the upper heating cylinder (2). A guide tube (5) for degassing is provided in the space below the upper die part (3), and the lower end of the guide tube (5) is at the end of the lower heating cylinder (6). The lower heating cylinder (6) is connected with the lower die (7) at the other end of the lower heating cylinder (6), and a cooling water tank (8) and a pelletizer (9) are provided in front of the extruded long pellet (10). It is characterized by a playback device equipped with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is a thermoplastic plastic foam that produces the best degassed pellets by removing the gas and air inside the crushed waste of foamed synthetic resin using a two-stage heating cylinder. The present invention relates to a playback device.

[0002]

[Prior art]

 Conventionally, in this type of thermal plastic synthetic resin foam waste regenerator, it is known that a heating cylinder is arranged in parallel, the raw material is supplied from the raw material input port, and is connected by a connecting pipe from the end discharge port. . (See, for example, Japanese Utility Model Laid-Open No. 58-136315).

[0003]

[Problems to be solved by the device]

 In the conventional foam scrap regenerator, the first heating cylinder and the second heating cylinder are arranged side by side in a plane, which causes a problem that the installation area becomes large, and the flow connection using the connecting and connecting pipe of each heating cylinder. As a result, it is impossible to remove each gas generated inside, so that there is a problem that it is not possible to obtain good pellets. This invention solves such a conventional problem, and its main purpose is to improve the conventional foam scrap regenerator into a vertical two-stage vertical type, which is called foam scrap. This is an application to a pellet recycling device, which significantly reduces the size of the entire device and ensures that gas and air are vented in the middle of the process to produce a pellet in which gas is eliminated from the recycled foam in the best condition. The present invention provides a device for doing so.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention connects the lower end of a hopper (1) for supplying crushed foam to the end of an upper heating cylinder (2). The molten material (12) flowing down the space from the other end of the upper heating cylinder (2) is drooped and passed through a guide guide tube (5) located directly below and connected to the end of the lower heating cylinder (6). Then, the lower heating cylinder (6) is provided with a lower die part (7) at an end portion thereof, and a long tank (10) extruded from the lower die part (7) is provided in the front of the water tank ( 8) A regeneration device for producing good pellets that have been passed through the inside of the water tank 8 and regenerated by the pelletizer (9) located in front of the water tank (8).

[0005]

【Example】

 Next, the reproducing apparatus of the present invention will be described in detail with reference to the embodiment shown in the drawings. A foamed product obtained by crushing a foaming synthetic resin is supplied to the hopper (1) by various means such as blowing air. The lower end discharge port of the hopper (1) is connected from above to the end part of the upper heating cylinder (2) whose outer periphery located in the upper lateral direction is heated. The upper heating cylinder (2) is provided with an upper die part (3) at the other end on the discharge side in the traveling direction. Next, in the upper heating cylinder (2), a lower heating cylinder (6) is arranged in parallel directly below. At the end of the lower heating cylinder (6) on the inlet side, a guide section (5) is provided by providing a space below the outlet of the molten material (12) of the upper die section (3). . The lower end of the guide tube (5) is connected to the end of the lower heating cylinder (6). On the discharge side of the lower heating cylinder (6), a lower die part (7) having various sizes of holes is installed.

Several long pellets (10) extruded from the lower die part (7) pass through a water tank (8) such as cold water installed in the front. A pelletizer (9) is installed in front of the water tank (8). The long pellet (10) is cut into various sizes while advancing to the pelletizer (9), and the regenerated pellet from the foam is re-executed in an integrated process. Reference numeral (13) indicates a rotary file provided adjacent to the pelletizer (9), and reference numerals (14) and (15) respectively indicate motors for rotating operation.

[0007]

[Action]

 Since this invention is constructed as described above, crushed thermoplastic foam scraps are fed into the hopper (1), and this raw material is heated and melted in the upper heating cylinder (2). It is placed on the discharge side by the internal screw shaft and flows out from each hole as a molten material (12) through the through hole of the upper die part (3) provided at the end, and a larger amount of gas than the molten material (12) flows during this flow. And can emit air. After that, the molten material (12) flows down through the space and drops into the guide tube (5), and the lower heating cylinder (6) connected to the molten material causes the molten material (12) to flow and enter in a heated and melted state, and the internal screw It is delivered to the lower die part (7) at the end on the discharge side by the shaft, and the long pellet (10) is extruded and regenerated with the degassing again. It moves in the water tank (8) while being cooled by the water tank (8) located in front of it, and is pulled by a tension roll and then by the rotary blade of the next pelletizer (9). It is cut into pellets of a specified length and used again as product material.

[0008]

[Effect of device]

 Since the foam regenerating apparatus of the present invention is configured as described above, the installation area is reduced for the upper and lower heating cylinders, and the crushed foam is simply supplied to the hopper, and the two locations on the way are reduced. It has the effect of removing the bad gas and air generated in the process, and the excellent effect of easily and reliably manufacturing large and small pellet products that are the best recycled materials. Then, the molten material flowing down from the upper die part provided at the end of the upper heating cylinder was made to hang down through the space to the guide tube directly below, so that the gas body contained inside the molten material became smoke. It has an excellent effect that has never been seen, that it can float up and reliably release unnecessary gas and air. Further, since the lower heating die portion is provided in parallel just below the upper heating die portion, the lateral width in the longitudinal direction is remarkably reduced, the installation area can be saved, and the overall size can be reduced. In addition, by extruding the upper heating die part and the lower heating die part, it is possible to remove the defective gas and the like inside the molten material twice, and the size of the through holes formed in the upper heating die part. This has the effect of freely adjusting the diameter and gas discharge. Furthermore, a water tank and a pelletizer are installed in front of the long pellet extruded from the lower die part.The cooled long pellets of various sizes can be used as a pellet for regeneration by the pelletizer in an integrated process. It can be manufactured.

[Brief description of drawings]

FIG. 1 is an overall side view of a foam recycling apparatus of the present invention.

FIG. 2 is likewise an overall front view of the device of the present invention.

FIG. 3 is a partially cutaway front view of the upper heating cylinder and the lower heating cylinder of the present invention.

[Explanation of symbols]

 1 Hopper 2 Upper heating cylinder 3 Upper die part 5 Induction guide tube 6 Lower heating cylinder 7 Lower die part 8 Water tank 9 Pelletizer 10 Long pellet 12 Molten material

Claims (1)

[Scope of utility model registration request] 1. A hopper for supplying crushed foam is provided, and a lower end of the hopper is connected to an end portion of an upper heating cylinder. The upper heating cylinder is provided with an upper die portion at the end thereof. The molten material flowing down from the die part is hung down through a space to a guide guide tube installed directly below, and the lower end of the guide guide tube is connected to the end of the lower heating cylinder, and the lower heating cylinder has an end. In addition to providing a lower die part to the part, a water tank is installed in front of several long pellets extruded from the lower die part, and a pelletizer for cutting the long pellets is installed in front of the water tank. A regenerating device for a characteristic thermoplastic plastic foam.