A mold for producing a polytetrafluoroethylene profile

By designing the mold, the upper support part and the lower forming part can be detachably connected, and the cavity part and the support part can be detachably connected. This solves the problems of high mold replacement cost and long time, improves the forming accuracy and dimensional stability of PTFE profiles, and adapts to the needs of multi-variety small-batch production.

CN224489726UActive Publication Date: 2026-07-14WENZHOU YINGFEI APPL OF ENG PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU YINGFEI APPL OF ENG PLASTICS CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing PTFE molding dies are inadequate for multi-variety, multi-batch production. Current technologies suffer from high mold replacement costs and long replacement times, making them unsuitable for the needs of multi-variety, small-batch production.

Method used

Design a mold for producing polytetrafluoroethylene profiles, which adopts a detachable connection between the upper support part and the lower forming part, and a detachable connection between the cavity part and the support part. Stable connection and disassembly are achieved by fasteners, which facilitates modular replacement.

Benefits of technology

Reduce mold replacement costs, shorten replacement time, improve profile forming accuracy and dimensional stability, and adapt to multi-variety, small-batch production.

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Abstract

The utility model discloses a kind of polytetrafluoroethylene section bar production molds, including upper receiving part and lower forming part, upper receiving part and lower forming part are detachably connected, lower forming part includes cavity part and support part, cavity part is located inside support part and both outer wall and inner wall abut, cavity part and support part are also detachably connected. The mold is designed as detachable structure by upper receiving part and lower forming part, cavity part and support part, realizes the modularization replacement of component, without integral replacement mold can be adapted to different shape or size section bar production, reduce replacement cost and shorten replacement time, while the abutment support of support part to cavity part can effectively reduce cavity deformation in high-pressure moulding process, improve the forming precision and production efficiency of polytetrafluoroethylene section bar, applicable to the production demand of many varieties small batch.
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