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Injection mold

An injection mold and injection molding technology, which is applied in the field of injection molds equipped with cooling pipeline devices, can solve the problems of uneven distribution of cooling points, poor cooling effect, and increased scrap rate.

Inactive Publication Date: 2015-05-27
常州大恒塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are also some cooling systems, which are to set some through holes inside the mold, and then inject water into the through holes to cool them, but the cooling effect of this structure is not good, and the distribution of cooling points will be uneven, and the injection molded parts may be deformed. , increasing the scrap rate

Method used

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  • Injection mold

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Embodiment Construction

[0013] according to figure 1 The shown injection mold has an upper mold 5, a lower mold 6, an injection port 4 is arranged in the middle of the upper mold 5, and an injection cavity 7 is formed in the middle of the upper mold 5 and the lower mold 6 after they are closed, and the inside of the upper mold 5 and the lower mold 6 has The pipe layer 8 surrounds the injection molding cavity 7. The pipe layer 8 has interconnected pipes 3. One side of the pipe layer 8 is equipped with an input main pipe 1, and the other side is equipped with an output main pipe 2.

[0014] When in use, high-temperature molten plastic flows into the injection cavity 7 from the injection port 4. When the injection molding is completed, the cooling liquid flows from the input main pipeline 1. When the cooling liquid passes through the pipeline layer 8, it takes away high-temperature heat, and then the cooling liquid flows from the output main pipeline. 2 out.

[0015] The above embodiments do not limit ...

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Abstract

The invention discloses an injection mold. The injection mold has an upper mold and a lower mold. The upper mold and the lower mold cooperate with each other to form a middle injection molding cavity. The middle of the upper mold has an injection molding opening. A pipeline layer is arranged inside the upper mold and the lower mold. The pipeline layer surrounds the injection molding cavity and is uniformly distributed. The pipeline layer has pipelines which communicate with each other. One end of the pipeline layer is connected with an input main, and the other end of the pipeline layer is connected with an output main. During moulding of an injection-molded part, the inside of the injection mold can be effectively cooled. Thus, the inside structure of the mold is protected, structural distortion of the mold is avoided, quality of the injection-molded part is enhanced, resources are saved, and production cost is reduced.

Description

technical field [0001] The invention relates to an injection mold, especially an injection mold equipped with a cooling pipeline device. Background technique [0002] Injection molded parts usually use injection molds for injection molding. The structure of the mold generally has two modules, the upper mold and the lower mold are sealed and combined to form an injection cavity in the middle. Because molten plastic particles are added during pouring, it is easy to make the mold core, mold, etc. The structure is deformed, so it is necessary to accelerate the cooling after pouring and make the injection molded parts form faster. At present, there are also some cooling systems, which are to set some through holes inside the mold, and then inject water into the through holes to cool them, but the cooling effect of this structure is not good, and the distribution of cooling points will be uneven, and the injection molded parts may be deformed. , increasing the scrap rate. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/73
CPCB29C45/7312
Inventor 吴旭日
Owner 常州大恒塑料制品有限公司