A single-sided cloth sandwiching rubber product forming mold and a forming process

By using a four-module structure for molding single-sided fabric-reinforced rubber products, the problems of inaccurate fabric positioning and rubber penetration have been solved, achieving stability and consistency of high-precision rubber products, avoiding defects in traditional processes, and improving molding efficiency and product quality.

CN122401735APending Publication Date: 2026-07-17XIAMEN MAIFENG SEAL PRODS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN MAIFENG SEAL PRODS
Filing Date
2026-06-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing production process of single-sided fabric-reinforced rubber products, the fabric lacks a dedicated pressing and positioning structure. The high-pressure flow of the rubber material easily impacts the fabric, causing displacement, wrinkling, and misalignment. The lack of pre-forming of the rubber material leads to uneven thickness and penetration through the fabric, affecting product consistency and precision.

Method used

The single-sided fabric-reinforced rubber product molding die adopts a four-module structure, with pre-forming structures for the rubber material and fabric respectively. Through the layered design of the top plate, upper middle plate, lower middle plate and bottom plate, the pre-forming of the rubber material and the pre-pressing and shaping of the fabric are completed simultaneously. After the mold is closed, vulcanization molding is carried out. Combined with the temperature control unit and temperature gradient control, the uniform flow of the rubber material and the accurate positioning of the fabric are ensured.

Benefits of technology

It achieves dimensional stability and shape consistency of high-precision rubber products, avoids problems such as glue seepage and leakage, extends the service life of molds and fabrics, and improves molding efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a single-face cloth-clamped rubber product forming die and a forming process. The die comprises a bottom plate, a lower middle plate, an upper middle plate and a top plate arranged in sequence along an axial direction. The top plate and the upper middle plate cooperate to form a rubber preforming structure, and the upper middle plate, the lower middle plate and the bottom plate cooperate to form a cloth pre-pressing structure. The preforming of the rubber and the pre-pressing of the cloth are synchronously performed. After the preforming is completed, the upper middle plate is removed, and then the top plate, the lower middle plate and the bottom plate are closed to vulcanize, so as to obtain the single-face cloth-clamped rubber product. According to the scheme, the stepped positioning and pre-pressing structure effectively prevent the cloth from wrinkling and deviating, the rubber preform and the cloth layer are independently formed and then are recombined to form, and the problems of glue penetration and gelation are completely avoided, and the product quality and the production efficiency are obviously improved.
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