Cold runner injection mold and plastic product

A technology for injection molds and plastic products, which is applied in the field of cold runner injection molds and plastic products, can solve the problems of high price and high production cost, achieve the effects of low cost, improve the quality of plastic products, and reduce the generation of stress marks

Active Publication Date: 2017-05-10
ZHEJIANG CHINT BUILDING ELECTRICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing plastic products require smooth appearance, uniform color, and good texture. However, for some plastic products with special structures, especially plastic products with shell shapes, in order to achieve better appearance quality, It needs to be made through injection molds with more complex structures, or more expensive heat flow flip-chip molds, resulting in high production costs of these plastic products

Method used

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  • Cold runner injection mold and plastic product
  • Cold runner injection mold and plastic product
  • Cold runner injection mold and plastic product

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] The following is attached Figures 1 to 9 The given examples further illustrate the specific implementation of the cold runner injection mold of the present invention. The cold runner injection mold of the present invention is not limited to the description of the following examples.

[0026] like figure 1 As shown, the cold runner injection mold of the present invention includes a fixed platen 200, a movable platen 300 arranged below the fixed platen 200, and an upper ejector plate 700 arranged below the movable platen 300. The fixed platen 200 and the movable platen 300 are respectively A fixed mold core 210 and a dynamic mold core 310 are provided, and a mold cavity 400 matching the structure of the plastic product is formed between the fixed mold core 210 and the dynamic mold core 310. The cross section of the mold cavity 400 is a concave structure with an undercut. One side of the cavity 400 is provided with a feed channel 500 , and the movable core 310 is provid...

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Abstract

The invention discloses a cold runner injection mold and a plastic product. The cold runner injection mold is used for manufacturing the plastic product and comprises a fixed template, a moving template arranged under the fixed template and an upper ejection plate arranged under the moving template; the fixed template and the moving template are internally provided with a fixed mold core and a moving mold core respectively; a mold cavity which is matched with the structure of the plastic product is formed between the fixed mold core and the moving mold core; a feeding runner is arranged on one side of the mold cavity; and an auxiliary runner which communicates between the middle part of the mold cavity and the feeding runner is arranged in the moving mold core. According to the cold runner injection mold, gum inlet is carried out as the auxiliary runner bypasses the lower side of the side edge of the cavity mold and bypasses the side edge of the cavity mold to extend upward to the middle part of the bottom side of the cavity mold, so that stress marks generated during formation of the plastic product are greatly reduced, and in addition, the production cost can be lowered.

Description

technical field [0001] The invention relates to the field of material molding, in particular to a cold runner injection mold and plastic products. Background technique [0002] Most of the existing plastic products require smooth appearance, uniform color, and good texture. However, for some plastic products with special structures, especially plastic products with shell shapes, in order to achieve better appearance quality, It needs to be produced through injection molds with relatively complex structures, or relatively expensive heat flow flip-chip molds, resulting in high production costs for these plastic products. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide a cold runner injection mold with simple structure and high reliability. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A kind of cold runner injection mold, it compr...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/27
CPCB29C45/0025B29C45/2602B29C45/2756B29C2045/0027
Inventor陈云朋潘赛国
OwnerZHEJIANG CHINT BUILDING ELECTRICS