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Injection mold

A technology for injection molds and injection parts, applied in the field of molds, can solve the problems of inability to take into account the difference in structure and performance, high shell cost, unfavorable environmental protection and other problems, and achieve the effects of improving efficiency, rapid prototyping and saving raw materials

Active Publication Date: 2018-03-27
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing two-color treatment often sprays different colors on the formed shell to form a two-color process. This method has great pollution and is not conducive to environmental protection, and has been gradually eliminated.
In addition, the shell directly formed by one injection molding cannot take into account the difference in structural performance between the panel of the shell and the surrounding frame structure, resulting in a relatively high overall cost of the shell

Method used

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Embodiment Construction

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0034] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

[0035] The ...

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Abstract

The invention provides an injection mold comprising a female mold assembly and a male mold assembly. The female mold assembly is provided with a first cavity and a second cavity. The male mold assembly comprises a male mold and a second male mold. The first male mold is provided with a first hot flow channel system and a second hot flow channel system. The second male mold is provided with a thirdhot flow channel system and a fourth hot flow channel system. The first male mold and the first cavity can be paired, the second male mold and the second cavity can be paired, and two-time injectionis completed. An injection molded semi-finished product forms a recession area at a jet opening of two-time injection. According to the injection mold, the first male mold and the second male mold cooperate to alternately complete two-time injection, so that a bicolor effect can be formed, the difference of the strength need on different areas of the injection molded piece are also taken into consideration, the situation that damage is caused since the hot flow channel systems are repeatedly disassembled and washed is avoided, waste of raw materials and plastic semi-finished products is avoided, and the product quality can also be improved. Besides, two injection molded pieces can be formed after alternate injection is conducted once, and therefore the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of moulds. Background technique [0002] TV front shells are becoming more and more diverse. In order to achieve a better appearance, the current TV front shells often need to use high-gloss injection molding technology to form a shell with no melting marks, no flow marks, no streamlines, no sink marks, and a high-gloss surface. The product, in addition, also needs to adopt a two-color treatment, setting different colors in different areas of the same shell, changing a single tone. However, the existing two-color treatment often sprays different colors on the molded shell to form a two-color process. This method has great pollution and is not conducive to environmental protection, and has been gradually eliminated. In addition, the housing directly formed by one injection molding cannot take into account the difference in structural performance between the panel of the housing and the surrounding frame stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27B29C45/16
CPCB29C45/1615B29C45/2725
Inventor 王学敏曾军王朝铭
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD