Mould for hollow sealing piece with fabric and continuous moulding method thereof

Abstract

The invention discloses a mould for a hollow sealing piece with fabric, and belongs to the technical field of rubber processing. The mould for the hollow strip fabric sealing piece comprises a lower mould, an upper mould and a middle mould; a cloth reserving groove is formed in one side of the upper mould and the lower mould; an upper mould product mould cavity is formed in the upper mould; a middle mould product mould cavity is formed in the middle mould; a lower mould product mould cavity is formed in the lower mould; the upper mould product mould cavity, the middle mould product mould cavity and the lower mould product mould cavity form a mould cavity of a rubber sealing piece; the invention also discloses a continuous moulding method for the hollow sectional sealing piece with the fabric; the processing of a long product or a sealing product with a special shape is realized by a method without lengthening and enlarging the mould or the method without splicing moulding; and according to the mould for the hollow sectional sealing piece with the fabric and the continuous moulding method thereof, continuous processing of the hollow sectional sealing piece with the fabric is realized.

Description

technical field [0001] The invention relates to the technical field of rubber processing, in particular to a mold for a hollow belt fabric seal and a continuous molding method thereof. Background technique [0002] The hollow section is equipped with fabric seals, which can realize small stress and large deformation. Rubber is used as the main material, which has good resilience, and provides contact stress for the rubber seals to achieve sealing; fiber fabrics are used as the skeleton material to limit the product. Deformation, improve product strength, improve product wear resistance, etc. [0003] Fabric seals with hollow sections generally require the surface of the seals to be covered with fabrics, with a smooth and flat appearance and uniform hollow wall thickness. During the molding process of the hollow structure, in order to ensure the uniform thickness of the hollow wall, it is necessary to position the two ends of the core of the hollow part. At present, there a...

AI Technical Summary

Problems solved by technology

[0004] (1) The method of using long or large molds. For long seals, the investment cost of the mold is high and the size of the vulcanization equipment is high, and the positioning of the long core is not good. For example: a 3m long seal requires a 3m long mold and molding of vulcanization equipment;

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