Fixing structure of forming core of layered injection molding and layered injection mold

A technology for fixing structures and positioning structures, which can be applied to household appliances, other household appliances, optical components, etc., and can solve problems such as unstable fixation of injection molding cores, and achieve the effects of stable position, lower requirements, and stable performance

Pending Publication Date: 2018-10-16
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of unstable fixation of the completed injection molding core during layered injection molding in the prior art, the present invention proposes a fixing structure for thick-walled products of layered injection molding, which solves the above technical problems

Method used

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  • Fixing structure of forming core of layered injection molding and layered injection mold
  • Fixing structure of forming core of layered injection molding and layered injection mold
  • Fixing structure of forming core of layered injection molding and layered injection mold

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Embodiment Construction

[0027] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] like Figure 1-5 As shown, the present embodiment provides a fixed structure of the forming core of layered injection molding, the fixed structure and the forming core 1 are integrally formed, the fixed structure extends outward from the edge of the forming core 1, and the fixed structure is used for the layered injection molding. The forming core 1 is suspended and fixed in the mold cavity 31 of the next injection molding, which is convenient for layered injection molding of the forming core 1 .

[0029] This embodiment is applicable to the injection molding preparation of lenses, which are transparent wall thickness products in the automotive lamp industry. Since the lens has a relatively thick wall thickness, it can be produced by multi-layer injection molding. The shape of the forming core 1 is reasonably set according to the shape of the len...

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Abstract

The invention relates to the field of layered wrapping injection molding of thick-wall products, in particular to a fixing structure of a forming core of layered injection molding and a layered injection mold. The fixing structure of the forming core of layered injection molding comprises at least three fixing branches, the at least three fixing branches and the forming core are integrally formed,and the at least three fixing branches and the mold are fixedly connected, so that the forming core is arranged in a mold cavity in a suspended mode. Each fixing branch comprises a fixing rod and a fixing block, wherein the inner end of the fixing rod and the forming core are integrally formed, the fixing block is arranged at the outer end of the fixing rod, and the fixing block is fixedly connected with the mold. Each fixing rod comprises a connecting portion and a fixing portion, wherein the connecting portion is bent, the inner end of the connecting portion and the forming core are integrally formed, the outer end of the connecting portion is fixedly connected with the fixing portion, the corresponding fixing block is arranged on the lower surface of the fixing portion, and the sectional area of the fixing block is smaller than that of the fixing portion. The problem that a completed injection molding core is fixed unstably during layered injection molding in the prior art is solved.

Description

technical field [0001] The invention relates to the field of layered wrapping injection molding of thick-walled products, in particular to a fixing structure and mold of a forming core of layered injection molding. Background technique [0002] The lens of transparent thick-walled products in the modern automotive lighting industry adopts multi-layer injection molding due to the thick wall thickness of the product. The high temperature and high pressure of the material flow sway and deflect and realize the wrapping of the core is the current design problem of multi-layer injection molding. [0003] At present, the measures for fixing the cavity of the core of the first layer of molding in the second layer of injection molding during multi-layer injection molding are as follows: [0004] Option 1, use the handle of the first layer of core injection molding to fix it. Disadvantages: ①The structural strength of the handle is low. The core cannot be completely wrapped; ②The st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/14B29C45/27B29L11/00
CPCB29C45/162B29C45/14065B29C45/2708B29L2011/0016
Inventor 许俊豪付梦姣罗俊
Owner CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
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