Manufacturing and processing method of composite rubber sealing element

Abstract

The invention relates to a manufacturing and processing method of a composite rubber sealing element. The manufacturing and processing method mainly comprises the following steps of putting the sealing element, supporting the sealing element, removing materials on the end surface, carrying out trimming treatment, collecting finished products and the like. The used manufacturing and processing equipment of the composite rubber sealing element comprises a fixed base, an air cylinder, a limiting cylinder, a material removing device and a trimming device, wherein the air cylinder is arranged on the left side of the upper end of the fixed base through an air cylinder base, the limiting cylinder is fixed on the right side of the upper end of the fixed base, the material removing device is arranged at the ejection end of the air cylinder, the material removing device is arranged on the limiting cylinder in a sliding mode, and the trimming device is arranged in the middle of the fixed base. According to the manufacturing and processing method, the problems that a traditional manufacturing and processing method of the composite rubber sealing element is only used for clamping and fixing thecomposite rubber sealing element, then trimming and finishing treatment is carried out, due to the influence of rubber elasticity, the trimming and finishing effect is not ideal, and finishing treatment cannot be carried out on the upper end surface can be solved.

Description

technical field [0001] The invention relates to the technical field of rubber processing, in particular to a method for manufacturing and processing a composite rubber seal. Background technique [0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature and can produce large deformation under a small external force. After removing the external force, it can return to its original shape. Rubber is a completely amorphous polymer. Its glass The transformation temperature is low, and the molecular weight is often very large, greater than hundreds of thousands. Rubber is divided into two types: natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants, while synthetic rubber is obtained by polymerization of various monomers. Composite rubber refers to NR (content 95% ~ 99.5%), adding a small amount of stearic acid, styrene-butadiene rubber, bu...

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Problems solved by technology

[0005] The present invention can solve the traditional manufacturing and processing methods of composite rubber seals. Usually, only the internal support and upper end surface of the composite rubber seals with I-shaped cross section are fixed, and then the trimming and finishing treatment is carried out. Because the composite rubber seals Its own elasticity is relatively large, so in the process of edge trimming and finishing, the effect of trimming and finishing is often unsatisfactory due to elastic limitations; and because the upper end surface needs to be supported at the same time, it is impossible to perform finishing treatment on the upper end surface, etc. problem

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