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Dishing spring type press mould

A disc spring and molding technology, applied in the field of disc spring molding die, can solve the problems of reduced die life, increased wear and high cost, and achieve the effect of avoiding unnecessary wear, improving product qualification rate and improving service life.

Inactive Publication Date: 2007-05-09
蒋迎峰
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AI Technical Summary

Problems solved by technology

In the existing forming molds for manufacturing skeleton oil seals, most of them use injection molds with 3-4 layers of structure. The mold adopts the structure that the injection plunger moves up and down, which requires high matching accuracy and complex mold processing, resulting in high cost; followed by The pressure in the mold clamping process cannot be adjusted, and the amount of rubber in the cavity cannot be controlled, and the product qualification rate is low; the third is that the plunger moves up and down, which increases wear and reduces mold life

Method used

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the embodiments of the above-mentioned drawings.

[0019] Referring to Fig. 1-Fig. 2, the overall structure of the disc spring molding die is in the shape of a cylinder, and is installed in the upper and middle templates (not shown) that can be separated above the lower template of the molding machine. The following embodiments are introduced by taking the skeleton oil seal with a size of 85×105×12 (mm) as an example: it includes an upper mold backing plate 1 and an upper mold 14, and an insert 6 and a spring groove of the insert 6 are installed in the upper mold backing plate There is a retaining spring 3 inside which acts as a limiter. The retaining spring not only prevents the insert 6 from falling down, but also prevents the backing plate of the upper die from falling out of the mold when the mold is inverted. The top surface of the insert 6 is lower than the upper die pad. The top surface o...

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Abstract

The disc spring type molding mold consists of upper cushion board, upper mold, upper mold embedding part, embedding part, large disc spring, small disc spring, lower mold, lower mold embedding part, pushing out mechanism inside the ring groove of lower mold, etc. It has simple structure, low making cost, disc spring structure for regulating mold locking pressure and material quantity inside the mold, high product quality, and long service life.

Description

technical field [0001] The invention relates to a skeleton oil seal molding die, especially a disc spring type molding die formed by one-time molding. Background technique [0002] In mechanical equipment, especially mechanical equipment with high precision requirements such as automobiles, precision machine tools, construction machinery, etc., the requirements for leakage protection are very high, and the skeleton oil seal is responsible for the anti-seepage of the above-mentioned equipment under dynamic and static conditions. The key parts of the leakage task, its own manufacturing quality will directly affect the anti-leakage effect, and the quality of the skeleton oil seal is determined by the precision of the mold used to manufacture it. Therefore, how to improve the overall quality of the forming mold will be to improve the anti-leakage precision of the product the key to. In the existing forming molds for manufacturing skeleton oil seals, most of them use injection m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/26
Inventor 蒋云安
Owner 蒋迎峰
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