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Gum cover for vulcanizing driving belt

A technology of transmission belts and rubber sleeves, applied in applications, belts, household appliances, etc., can solve the problems of poor sealing effect and failure to achieve sealing effect, reduce shrinkage deformation, increase the number of times of use, and reduce air leakage from the belt cylinder The effect of scrapping

Inactive Publication Date: 2009-10-14
唐全胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because the upper and lower ends of the rubber sleeve are repeatedly compressed and deformed, the sealing effect of the two ends becomes poor, and the sealing effect cannot be achieved, so it is discarded.

Method used

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  • Gum cover for vulcanizing driving belt
  • Gum cover for vulcanizing driving belt
  • Gum cover for vulcanizing driving belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Please refer to the figure 1 .

[0015] The rubber sleeve for vulcanization of the drive belt is barrel-shaped, with open upper and lower ends, and is characterized in that a ring of sealing lips 1 is provided on each of the two ends.

[0016] The sealing lip forms an acute angle 2 with the inner wall of the rubber sleeve.

[0017] The length of the sealing lips at both ends of the barrel-shaped rubber sleeve is greater than the thickness of the rubber sleeve.

[0018] The section of the sealing lip at both ends of the barrel-shaped rubber sleeve gradually becomes thinner from thicker.

[0019] The section of the sealing lip is triangular.

[0020] The working state of the present invention is such that the rubber layer that is about to become a transmission belt is covered outside the barrel-shaped mold, and the rubber sleeve of the present invention is wrapped outside the rubber layer. After the three are wrapped, they are sent into the pressure vessel and covered...

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Abstract

The invention relates to a gum cover for vulcanizing a driving belt. The gum cover is a barrel shape and the upper end and the lower end thereof are open. The gum cover is characterized in that two end surfaces are provided with a ring of sealing lips respectively. The sealing lips at two ends of the barrel-shaped gum cover and a gum cover wall form an angle. The length of the sealing lips at two ends of the gum cover is longer than the thickness of the gum cover. The profile of the sealing lips at two ends of the barrel-shaped gum cover gradually changes from thick to thin. The profile of the sealing lips is a triangle. The gum cover has the advantages of reducing the shrinking deformation due to pressurized height of the gum cover when in use and increasing the effective cutting width of a gum layer. The profile of the sealing lip gradually changes from thick to thin so that the sealing speed to the upper cover plate and lower cover plate of a die during the vulcanization process of the gum cover is quickened, and the sealing performance is improved, the abandoned belt cylinder due to whole or local leakage caused by poor sealing of the gum cover is reduced and the use time of the gum cover can be improved by more than 2 times.

Description

(1) Technical field [0001] The invention relates to a rubber sleeve used for making transmission belts, especially a rubber sleeve used for vulcanization of toothed transmission belts. (2) Background technology [0002] At present, whether it is to produce positively formed toothed transmission belts, reverse formed toothed transmission belts or double-sided toothed transmission belts, the pressure vessel can be divided into three layers during the production vulcanization process, that is, the innermost layer is a toothed mold, and the mold The outer cover will be made into the rubber layer of the skeleton material wire rope made of chemical fiber material, and the outer layer is exactly the rubber sleeve of the present invention. During vulcanization, steam is injected into the pressure vessel and the barrel mold at the same time. Since the pressure delivered to the pressure vessel is greater than the pressure delivered to the barrel mold, the rubber layer will flow to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/04B29L29/00
Inventor 唐全胜唐浩鹤
Owner 唐全胜
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