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Injection mold

A technology of injection molds and models, applied in the field of molds for injection molding mobile phone casings, can solve the problems of improper temperature control of molten material, uneven color, white spots, etc., and achieve the effect of ensuring the quality of molded products

Inactive Publication Date: 2018-05-04
KA FUNG IND TECH HUIZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are two types of mobile phone shells: metal shells and plastic shells. Plastic shells are usually processed by injection molding. However, the existing injection-molded plastic mobile phone shells often have problems such as uneven color and white spots. It is caused by improper and uneven temperature control of the molten material in the cavity. The present invention aims to improve the injection molding mold to avoid the above problems

Method used

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  • Injection mold

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the embodiments and drawings, which are only for explanation and not intended to limit the protection scope of the present invention.

[0013] as attached figure 1 As shown, the injection mold described in this embodiment includes an upper mold and a lower mold, wherein the lower mold 10 is provided with a cavity 11 adapted to the shape and structure of the mobile phone shell, and the injection material is poured from the glue filling port of the upper mold and enters the lower mold Cavity 11, and finally form the basic structure of the mobile phone casing through cooling and other steps, and then form the final product through subsequent shaping.

[0014] In order to avoid product quality problems caused by the injection of plastic into the cavity, the heat of the molten material injected first is dissipated, and the temperature of the molten material injected is high, and the temperatu...

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Abstract

The invention relates to an injection mold. The injection mold comprises an upper mold body and a lower mold body. The lower mold body is provided with a mold cavity with the outline structure adapting to that of a mobile phone shell, and an injection molding material is poured from an upper mold glue grouting opening and enters the mold cavity of the lower mold, after the steps of cooling and thelike, a base structure of a mobile phone shell body is finally formed, and then after subsequent finishing, a final product is formed. A vacuum isolation layer is arranged on the periphery of the mold cavity of the lower mold, and cooling devices are evenly distributed on in a lower mold solid body between the isolation layer and the mold cavity. The injection mold has the beneficial effects thatthe vacuum isolation layer is arranged on the periphery of the mold cavity of the mold, heat transmission between molten liquid inside the mold cavity and the external environment can be effectivelyisolated, the influence of the external environment on the injection molding effect is avoided, the consistency of the density and hardness of all points of the formed product is ensured, and the problems that due to uneven heat dissipation of the injection molding material, after forming, white spots are generated, and the color is uneven are avoided.

Description

technical field [0001] The invention relates to an injection mold, in particular to a mold for injection molding a mobile phone casing. Background technique [0002] Injection molding is a method for the production of industrial products. Generally, injection molding machines are used to make thermoplastic or thermosetting materials into various shapes of plastic products using molding molds. At present, there are two types of mobile phone shells: metal shells and plastic shells. Plastic shells are usually processed by injection molding. However, the existing injection-molded plastic mobile phone shells often have problems such as uneven color and white spots. The temperature control of the molten material in the mold cavity is caused by improper and uneven temperature control. The present invention aims to improve the mold for injection molding to avoid the above-mentioned problems. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/73
CPCB29C45/2602B29C45/0025B29C45/73
Inventor 李远发黄永铨刘建平刘军蒋成黄维中蔡忠祥宋卓能
Owner KA FUNG IND TECH HUIZHOU CO LTD