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Small injection mold structure

An injection mold and front mold core technology, which is applied in the field of miniaturized injection mold structure, can solve the problems of increasing tonnage specifications of injection molding machines, increasing injection molding costs, and increasing mold manufacturing costs, reducing external dimensions, overcoming The effect of large external size and lower production cost

Inactive Publication Date: 2015-11-25
DONGMING XINGYE SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The front mold core and the rear mold core are inlaid on the A plate and the B plate, and the necessary structures on some molds (such as guide posts and guide bushes) are on the A plate and the B plate outside the range of the front and rear mold cores, which leads to the external dimensions of the mold. Relatively large, the tonnage and specifications of the injection molding machine for injection molding will increase accordingly, the cost of mold manufacturing will increase, and the cost of injection molding will also increase

Method used

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  • Small injection mold structure
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  • Small injection mold structure

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specific Embodiment approach

[0018] The preferred specific embodiment of the miniaturized injection mold structure of the present invention is:

[0019] It includes a panel and a bottom plate. The bottom plate is provided with a supporting iron, a thimble panel, a thimble bottom plate, a thimble and a reset rod. The front mold core is fixed on the bottom of the panel, and the rear mold core is fixed on the upper surface of the supporting iron. The support iron and the lower die core are fixed with guide posts, the front die core is provided with guide holes corresponding to the guide posts, and a cavity is formed between the middle opening and joint surfaces of the front die core and the rear die core.

[0020] A guide sleeve is arranged in the guide hole.

[0021] The outer edge size of the front mold core and the rear mold core is consistent with the outer edge size of the supporting iron.

[0022] The miniaturized injection mold structure of the present invention adopts an integral front mold core and...

specific Embodiment

[0023] like figure 2 As shown, the front mold core 2 is used to directly replace the A plate in the conventional technology, so the guide sleeve 6 is directly fixed on the front mold core 2; the rear mold core 3 is used to directly replace the B plate in the prior art, so the guide post 7 Fixed on the back mold core 3. The front mold core 2 and the rear mold core 3 cooperate with each other under the positioning of the guide post 7 and the guide sleeve 6 to form a product-shaped cavity 9 .

[0024] The gate sleeve 5 is fixed on the panel 1 shown in the figure, and passes through the front mold core 2. The top is flush with the cavity surface of the front mold core 2. The center of the gate sleeve 5 has a tapered hole and the upper end has a spherical shape. The surface is used to cooperate with the nozzle of the injection molding machine. The molten plastic injected from the nozzle of the injection molding machine reaches the cavity 9 through the conical hole in the center o...

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Abstract

The invention discloses a small injection mold structure which comprises a face plate and a bottom plate, wherein support iron, a thimble face plate, a thimble bottom plate, a thimble and a return rod are arranged on the bottom plate; a front mold insert is fixedly arranged under the face plate, and a rear mold insert is fixedly arranged on the support iron; the support iron and the rear mold insert are fixedly provided with guide posts, and guide holes corresponding to the guide posts are formed in the front mold insert; a mold cavity is formed between the middle opening and closing surfaces of the front mold insert and the rear mold insert, and guide sleeves are arranged in the guide holes; the overall dimensions of the front mold insert and the rear mold insert are consistent with that of the support iron. The integral type front mold insert and rear mold insert is adopted, and some necessary structures (such as the guide posts and the guide sleeves) of a mold are directly arranged on the front mold insert and the rear mold insert, so that the problems of large maximum overall dimension, large tonnage of an injection molding machine for forming and high cost of mold manufacturing and forming production of the convenient injection mold are solved.

Description

technical field [0001] The invention relates to an injection mold, in particular to a miniaturized injection mold structure. Background technique [0002] In recent years, with the continuous development of my country's mobile communication industry, mobile phone products require higher and higher quality injection molds, and require lower and lower mold production costs. In injection molding, the maximum external dimension of the injection mold is the most important factor affecting the selection of the tonnage size of the injection molding machine, and the tonnage size of the injection molding machine is the most important factor in the production cost of injection molding. Therefore, in the mold design, it can not only ensure the injection molding It is especially important to reduce the quality of the mold and reduce the maximum size of the mold to reduce the tonnage of the injection molding machine. [0003] like figure 1 As shown, in the prior art, generally, the par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/26B29C45/27B29C45/40
CPCB29C45/26B29C45/2708B29C45/4005
Inventor 张建立宋桂云彭龙云李艳茹陈晓春
Owner DONGMING XINGYE SCI TECH CO LTD