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Double-shot injection moulding shell and injection mold

A two-color injection molding and injection mold technology, applied to the structure of telephones, etc., can solve problems such as poor bonding of materials, air trapping, and outer layer shedding, and achieve the effects of avoiding peeling, firm bonding, and increasing the bonding area

Inactive Publication Date: 2016-10-05
SHANGHAI SIMCOM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the products produced by injection molding are often trapped in air, the two materials are not firmly combined, and cannot withstand high temperature, high humidity, water and other related tests, and the outer layer of the product will fall off after a period of use

Method used

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  • Double-shot injection moulding shell and injection mold
  • Double-shot injection moulding shell and injection mold
  • Double-shot injection moulding shell and injection mold

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0016] The first embodiment of the present invention relates to a two-color injection molding shell, such as figure 1 , 2 shown. The two-color injection molding housing 1 includes a first plastic layer 11 and a second plastic layer 12, which respectively have a first joint surface S and a second joint surface (not shown in...

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Abstract

The invention relates to structural design of a shell and discloses a double-shot injection moulding shell and an injection mold. The double-shot injection moulding shell comprises a first plastic layer and a second plastic layer combined with each other, wherein a first combining surface of the first plastic layer is provided with at least one first convex block; a second combining surface of the second plastic layer is provided with a first concave groove corresponding to the first convex block; the first plastic layer and the second plastic layer are combined through the first combining surface and the second combining surface; the first convex block is tightly embedded in the first concave groove. Therefore, the combining area of the two plastic layers of the double-shot injection moulding shell is increased to enable the combination of the two plastic layers to be firmer and prevent the two plastic layers from stripping.

Description

technical field [0001] The invention relates to the structural design of the shell, in particular to a two-color injection molding shell and an injection mold. Background technique [0002] At present, the casings of rugged mobile phones, tablets, and walkie-talkies are all made of two-color injection molding, often with PC+TPU, PC+PC, PC+ABS, PA+TPU, etc. People often use the design of combining the average thickness of the two materials. However, the products produced by injection molding are often trapped in air, the two materials are not firmly bonded, and cannot withstand high temperature, high humidity, water spray and other related tests, and the outer layer of the product will fall off after a period of use. Contents of the invention [0003] The purpose of the present invention is to provide a two-color injection molding casing and an injection mold, which increases the joint area of ​​the two plastic layers in the two-color injection molding casing, thereby makin...

Claims

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Application Information

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IPC IPC(8): B29C45/16B29C45/26H04M1/02
Inventor 周志威
Owner SHANGHAI SIMCOM LTD
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