Self-demoulding type injection moulding structure

A model, self-release technology, applied in the field of auto parts processing, can solve problems such as failure to release the mold smoothly, parts breakage, etc., to achieve the effect of improving cooling efficiency and large temperature conduction area

Inactive Publication Date: 2017-06-23
CHONGQING SHENGSHUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the injection mold is molding some parts with relatively deep molding positions, the parts

Method used

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  • Self-demoulding type injection moulding structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the injection molding structure of the self-release model includes an upper mold 1 and a lower mold 2 corresponding to the upper mold 1; The upper mold core 102 on the lower surface and through the push plate 103, the upper mold plate 101 is provided with a blind hole 104 in the end surface close to the push plate 103, and the blind hole 104 is provided with a first spring 105 acting on the push plate 103;

[0024] The lower mold 2 includes a lower template 201 and a guide column 203, the lower template 201 is provided with a molding cavity 202 corresponding to the upper mold core 102 and a guide hole 205, the guide hole 205 is provided with a second spring 204 connected to the guide column 203, Under the action of the second spring 204, the guide post 203 supports the push plate 103, and the inner wall of the guide hole 205 is provided with a positioning chute 206, and the outer wall of the guide post 203 is provided with a positioning protru...

Embodiment 2

[0028] Such as figure 1 As shown, this embodiment is based on Embodiment 1, and the cooling section 3 is spiral. The cooling section 3 has a spiral shape, so that the temperature conduction area is larger and the cooling efficiency is improved.

Embodiment 3

[0030] Such as figure 1 As shown, on the basis of Embodiment 1, this embodiment also includes an electromagnetic shut-off valve A6 arranged on the water outlet section 5; the electromagnetic shut-off valve A6 is closed when the mold is closed and opened when the mold is opened. Close the electromagnetic shut-off valve A6 during mold closing, so that the cooling water in the cooling section 3 stops flowing, and the high-temperature plastic in the molding cavity 202 will not be cooled during mold closing, so as to avoid affecting the molding of plastic products.

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PUM

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Abstract

The invention discloses a self-detachable model injection molding structure, which includes an upper mold and a lower mold corresponding to the upper mold; The first spring is arranged in the blind hole; the lower mold includes a lower template, a guide column and a second spring, the lower template is provided with a molding cavity and a guide hole, the guide column and the guide hole are slidingly fitted, and the second spring is arranged in the guide hole It also supports the guide column, and the guide column supports the push plate; it also includes a cooling water pipe, which includes a cooling section arranged in the upper mold core, a water inlet section and a water outlet section arranged in the upper formwork; one end of the water inlet section Extending to the outside of the upper formwork, the other end of the water inlet section communicates with the water inlet end of the cooling section; one end of the water outlet section extends outside the upper formwork, and the other end of the water outlet section communicates with the water outlet end of the cooling section. The invention demoulds the plastic product after cooling, and overcomes the problem of deformation of the plastic product caused by forced demoulding.

Description

technical field [0001] The invention relates to the field of auto parts processing, in particular to an injection molding structure of a self-release model. Background technique [0002] When the existing injection mold is processing the plastic parts of the automobile, the melted plastic is usually cast in the mould, and the required product will be obtained after the molding is cooled and demoulded. [0003] However, when the injection mold is molding some parts with relatively deep molding positions, the parts will stick to the mold when the parts are demolded, causing the parts to break and cannot be demolded smoothly. Contents of the invention [0004] The purpose of the invention is to overcome the deficiencies of the prior art, provide a self-release model injection molding structure, and can successfully realize the release work of the plastic finished auto parts. [0005] The object of the present invention is achieved through the following technical solutions: ...

Claims

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Application Information

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IPC IPC(8): B29C45/73B29C45/26
CPCB29C45/7312B29C45/2602
Inventor 杜彩霞
Owner CHONGQING SHENGSHUN TECH
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