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Mould structure of plastic injection product

A technology of injection molding products and molds, which is applied in the field of mold structure of injection molding products, can solve the problems of unable to meet the normal strength requirements of products, poor strength, etc., and achieve the effect of meeting normal strength requirements and good strength

Inactive Publication Date: 2012-01-25
VANGUARD TECH WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after adding this structure, although the existence of weld lines cannot be seen from the surface of the product, the strength of many products is still very poor, which cannot meet the normal strength requirements of the product.

Method used

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  • Mould structure of plastic injection product
  • Mould structure of plastic injection product

Examples

Experimental program
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Embodiment Construction

[0008] see figure 1 , Which includes runner 1, gate 2, front mold core 3, rear mold core 4, front mold core 3 and rear mold core 4 cooperate with each other to form cavity 5, runner 1 penetrates through front mold core 3 and connects to the gate 2. The cavity 5 at the farthest end of the gate 2 is provided with a cold chute 6. The cold chute 6 is specifically an overflow cavity that is formed by the cooperation of the front mold core 3 and the rear mold core 4, The lower part of the cold chute 6 is provided with a cold chute thimble 7, and the bottom end of the cold chute thimble 7 is fastened to the entirety of the needle plate 8 and the bottom needle plate 9.

[0009] The working principle is as follows: inject materials through the runner 1 until the injection is completed, and then the front mold core 3 rises, and then the cold chute thimble 7 moves to eject the rough product. Because of the cold chute thimble 7, it is no longer needed The product thimble, so that there will...

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PUM

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Abstract

The invention provides a mould structure of a plastic injection product, which is used for enabling the strength of a filling position of a product at the end farthest away from a gate to be good and the strength of the whole product to be good so as to meet the normal strength requirement of the product. The mould structure of the plastic injection product comprises a runner, the gate, a front mould core and a back mould core, wherein the front mould core and the back mould core are mutually matched to form a diccavity; and the runner is communicated with the gate after penetrating through the front mould core. The mould structure of the plastic injection product is characterized in that the diccavity at the end farthest away from the gate is internally provided with cold material troughs which are specifically overflow cavities formed in a manner that the front mould core and the back mould core are mutually matched.

Description

Technical field [0001] The invention relates to the technical field of mold structures, in particular to the mold structure of injection products. Background technique [0002] Existing injection molded products are broken at the filling position farthest from the gate. The usual practice is to add a vent groove at the filling position of the farthest distance from the gate to improve the product by adjusting the molding parameters. Strength after welding. However, after adding this structure, although the weld line cannot be seen from the surface of the product with eyes, the strength of many products is still very poor and cannot meet the normal strength requirements of the product. Summary of the invention [0003] The invention provides a mold structure for an injection molded product, which enables the product to have a good strength at the filling position at the farthest end of the gate, so that the entire product has a good strength, and meets the normal strength requirem...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/73
Inventor 张卫
Owner VANGUARD TECH WUXI
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