Hydroforming apparatus for polytetrafluoroethylene gaskets

By employing a detachable connection structure and a nano-level anti-stick layer in the PTFE gasket hydroforming device, the problem of fixed mold size is solved, demolding resistance is reduced, and diversified production and efficient processing are achieved.

CN224408237UActive Publication Date: 2026-06-26BAOJI JINHONGXING SEALING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOJI JINHONGXING SEALING MATERIALS CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the existing processing of polytetrafluoroethylene (PTFE) materials, the mold structure of PTFE gaskets is fixed, resulting in fixed gasket dimensions. During demolding, the material's elasticity or vacuum adsorption leads to high demolding resistance and adhesion problems.

Method used

The molding tank and lower telescopic cylinder, as well as the anti-stick base plate and column, are detachably connected. Combined with the nano-level polytetrafluoroethylene anti-stick layer and the material pushing device, the molding tank and anti-stick base plate can be flexibly replaced, reducing the risk of adhesion. The material pushing is assisted by airflow, avoiding manual demolding.

Benefits of technology

It enables diversified production adaptability of PTFE gaskets, reduces demolding difficulty, improves production efficiency, ensures gasket quality, and reduces manual intervention.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224408237U_ABST
    Figure CN224408237U_ABST
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Abstract

Provided is a hydraulic forming device for polytetrafluoroethylene gaskets, a forming groove detachably fixed to a lower telescopic cylinder piston rod arranged in the middle of the upper end face of a machine body is located between a receiving rack and a pushing rack, a detachable fixed connection is formed between an anti-sticking bottom plate matched in the forming groove and a vertical column, the vertical column passes through a through hole in the bottom surface of the forming groove with the lower end fixed to the upper end face of the machine body, a pressing plate detachably fixed to the upper telescopic cylinder piston rod is arranged above the forming groove, a pushing device is arranged on the pushing rack, and when the forming groove is driven by the lower telescopic cylinder to move downwards to a state where the upper edge of the forming groove is level with the upper end face of the receiving rack and the pushing rack and the upper end face of the anti-sticking bottom plate, the gaskets on the anti-sticking bottom plate are pushed onto the receiving rack by the pushing device. The utility model solves the problem of fixed gasket size caused by fixed size of the forming groove and the bottom plate of the existing mold structure, the anti-sticking bottom plate directly contacts the polytetrafluoroethylene gaskets, solves the problems of large demolding resistance and easy adhesion, has a simple structure, novel design, reduces manual intervention, and improves production efficiency.
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