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Top rubber sulfuration die

A vulcanization mold and top glue technology, which is applied in the field of top glue vulcanization molds, can solve the problems of manual removal troubles, thick top glue burrs, etc., and achieve the effects of increasing work efficiency, reducing strength, and preventing breakage

Inactive Publication Date: 2015-08-05
ZHEJIANG HONGLEE AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a top rubber vulcanization mold, aiming to solve the problems in the prior art that the burrs of the top rubber are too thick and manual removal is troublesome

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0016] refer to figure 1 , figure 2 and image 3 , a top rubber vulcanization mold, comprising an upper mold 2, a lower mold 3, a mold core 4 pierced on the lower mold 3, the parting surface of the upper mold 2 and the lower mold 3 is provided with an annular overflow rubber groove 1 and the overflow glue groove 7, an annular passage 5 is arranged between the inner overflow glue groove 1 and the overflow glue groove 7. It also includes a cutting ring 6 for cutting burrs. The lower end of the cutting ring 6 is provided with a blade, and the longitudinal section of the cutting ring 6 is wedge-shaped. The inner overflow glue groove 1 is arranged on the upper mold 2, and the longitudinal section of the inner overflow glue groove 1 is a triangle with a small top and a large bottom. The overflow glue groove 7 is arranged on the lower mold 3, and the longitudinal section of the overflow glue groove 7 is a triangle with a large upper part and a smaller lower part.

[0017] When i...

Embodiment 2

[0019] refer to Figure 4 , the difference from Embodiment 1 is that the inner overflow glue groove 1 is composed of an upper annular groove arranged on the upper mold 2 and a lower annular groove arranged on the lower mold 3, and the longitudinal section of the upper annular groove is A triangle with a small top and a large bottom, the longitudinal section of the lower annular groove is a triangle with a large top and a small bottom; the structure of the overflow glue groove 7 is the same as that of the inner overflow glue groove 1 . , the excess rubber material enters the overflow glue groove 1, the annular channel 5 and the overflow glue groove 7 in sequence on the parting surface of the upper mold 2 and the lower mold 3. After the product is formed, take out the product and tear off the burrs by hand; Raw edges are thinner for easy tear-off.

[0020] The present invention adopts a double overflow groove structure. During the vulcanization injection process, the excess rub...

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Abstract

The invention provides a top rubber sulfuration die, which can solve the problems of thick edge of top rubber and inconvenience of artificial removal. The top rubber sulfuration die comprises an upper die, a lower die, a die core arranged on the lower die by passing through, an annular inner glue-spilling groove and an outer glue-spilling groove are arranged on a parting surface of the upper die and the lower die, and an annular channel is arranged between the inner glue-spilling groove and the outer glue-spilling groove. By employing a double-flash groove structure, during a sulfuration injection process, a superfluous rubber compound is introduced in the glue-spilling groove, residual rubber compound is introduced in the outer glue-spilling groove, due to effect of two glue-spilling grooves, the edge of the product is thin, edge can be torn slightly, operator intensity is greatly mitigated, work efficiency is increased, the edge thickness between the glue-spilling grooves can be increased by arranging the annular channel, and fracture can be prevented.

Description

technical field [0001] The invention relates to a top rubber vulcanization mold. Background technique [0002] At present, with the entry of automobile products into ordinary households, the popularization and popularization of automobiles also promote the development of the downstream industry of automobiles, among which top rubber is also developing rapidly. In the production of top rubber, rubber vulcanization is an important part, which is related to the performance and quality of the entire product. The vulcanization mold is the core and key of the entire vulcanization process. In the vulcanization process, due to the good fluidity of the rubber, there is a circle of burrs on the side of the product after vulcanization. The traditional method is to process a circle of overflow grooves around the cavity of the vulcanization mold to allow the excess rubber to overflow into the groove. After taking it out, manually trim off the excess waste. The disadvantage is that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/00B29C35/00B29C37/02
Inventor 徐松宝袁建平梅军陈杰
Owner ZHEJIANG HONGLEE AUTO PARTS
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