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Degradable plastic melt extrusion die head

A technology of melt extrusion and degradable plastics, applied in the field of extrusion dies, which can solve the problems of inconvenient adjustment of the position gap of the extrusion die, lower production efficiency, simple structure of the extrusion die, etc.

Pending Publication Date: 2022-03-01
TONGLING FOUNDER PLASTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a degradable plastic melt extrusion die, which is convenient to adjust the position gap of the extrusion die, improves the production efficiency of degradable plastic products, and solves the problem of existing extrusion dies. The structure of the die head is too simple, it is not convenient for the staff to adjust the position gap of the extrusion die head, which reduces the problem of production efficiency

Method used

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  • Degradable plastic melt extrusion die head
  • Degradable plastic melt extrusion die head
  • Degradable plastic melt extrusion die head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , a degradable plastic melt extrusion die head, comprising an outer mold 1, an inner mold 2 and a base 3, a gap is left between the outer mold 1 and the inner mold 2, and the base 3 is located below the outer mold 1 and connected to the inner mold The bottom of 2 is fixedly connected, the bottom of the base 3 is provided with a feed channel 4, and the feed channel 4 extends to the inside of the inner mold 2, the upper end of the inner mold 2 is set with a large diameter, and the upper surface of the base 3 is symmetrically fixed with a ring The sealing plate 5 and the lower side of the outer mold 1 are provided with an annular sealing groove, the annular sealing plate 5 is arranged in cooperation with the annular sealing groove, and an adjusting mechanism is arranged between the base 3 and both sides of the outer mold 1 .

[0027] The adjustment mechanism includes an internally threaded sleeve 6 and an externally threaded ring 7, the bottom of the internall...

Embodiment 2

[0030] see Figure 2-3 , a degradable plastic melt extrusion die head, comprising an outer mold 1, an inner mold 2 and a base 3, a gap is left between the outer mold 1 and the inner mold 2, and the base 3 is located below the outer mold 1 and connected to the inner mold The bottom of 2 is fixedly connected, the bottom of the base 3 is provided with a feed channel 4, and the feed channel 4 extends to the inside of the inner mold 2, the upper end of the inner mold 2 is set with a large diameter, and the upper surface of the base 3 is symmetrically fixed with a ring The sealing plate 5 and the lower side of the outer mold 1 are provided with an annular sealing groove, the annular sealing plate 5 is arranged in cooperation with the annular sealing groove, and an adjusting mechanism is arranged between the base 3 and both sides of the outer mold 1 .

[0031] The adjustment mechanism includes a moving plate 9, a spring 10, a movable rack 11 and a fixed rack 12. The inside of the ann...

Embodiment 3

[0034] see Figure 4 , a degradable plastic melt extrusion die head, comprising an outer mold 1, an inner mold 2 and a base 3, a gap is left between the outer mold 1 and the inner mold 2, the base 3 is located below the outer mold 1 and connected to the inner mold The bottom of 2 is fixedly connected, the bottom of the base 3 is provided with a feed channel 4, and the feed channel 4 extends to the inside of the inner mold 2, the upper end of the inner mold 2 is set with a large diameter, and the upper surface of the base 3 is symmetrically fixed with a ring The sealing plate 5 and the lower side of the outer mold 1 are provided with an annular sealing groove, and the annular sealing plate 5 is matched with the annular sealing groove, and an adjusting mechanism is arranged between the base 3 and both sides of the outer mold 1 .

[0035] The adjusting mechanism comprises a screw rod 14, a first nut 15 and a second nut 16, the side wall of the base 3 is fixedly provided with a fi...

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Abstract

The invention relates to the technical field of extrusion die heads, and discloses a degradable plastic melt extrusion die head which comprises an outer die, an inner die and a base, a gap is reserved between the outer die and the inner die, the base is located below the outer die and fixedly connected with the bottom of the inner die, a feeding channel is formed in the bottom of the base, and the feeding channel is communicated with the inner die. A feeding channel is formed in the base and extends into the inner mold, the upper end of the inner mold is of a large diameter, annular sealing plates are symmetrically and fixedly arranged on the upper surface of the base, an annular sealing groove is formed in the lower side of the outer mold, the annular sealing plates and the annular sealing groove are arranged in a matched mode, and adjusting mechanisms are arranged between the base and the two sides of the outer mold. According to the degradable plastic melt extrusion die head, the position gap of the extrusion die head can be conveniently adjusted, and the production efficiency of degradable plastic products is improved.

Description

technical field [0001] The invention relates to the technical field of extrusion dies, in particular to a degradable plastic melt extrusion die. Background technique [0002] In plastic molding equipment, plastic extruder is an important part of various plastic extrusion molding production lines. It is mainly used to extrude thermoplastics such as soft and hard polyvinyl chloride and polyethylene, and corresponding auxiliary machines (including Forming machine head) can process a variety of plastic products, such as film, tube, rod, plate, wire, cable insulation layer and hollow products, etc. It can also be used for granulation to produce various plastic products. [0003] In the process of extruding the degradable plastic melt in the current extrusion die, due to the different thickness of the film, it is necessary to adjust the corresponding position gap of the die from time to time, but the structure of the existing extrusion die It is too simple, and it is not convenie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/31B29C48/08
CPCB29C48/31B29C48/08
Inventor 陈可夏陈通达陈通庆陈通子
Owner TONGLING FOUNDER PLASTICS TECH