A continuous winding device for glass fiber reinforced plastic tubes

By combining a circumferential continuous fiber and chopped fiber winding device with resin materials, the problems of insufficient strength and low production efficiency of glass fiber reinforced plastic cable conduits have been solved, achieving high strength and high-efficiency production.

CN224426589UActive Publication Date: 2026-06-30CHANGSHA XINSHI PIPELINE +1
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Patent Information

Application Number
CN202521659278.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2026-06-30
Estimated Expiration
2035-08-05

AI Technical Summary

Technical Problem

The existing glass fiber reinforced plastic cable conduit has insufficient axial fiber count, resulting in insufficient strength. Furthermore, frequent yarn breakage and yarn disorder occur during the production process, affecting production efficiency.

Method used

By employing a circumferential continuous fiber winding device and a chopped fiber winding device, circumferential winding and chopped fiber cutting are performed on the mold surface, combined with resin material, to form an anisotropic fiber structure, improving axial and circumferential strength, and enabling continuous production through a liftable frame.

Benefits of technology

This improved the axial tensile strength and circumferential bending strength of glass fiber reinforced plastic pipes, avoided yarn breakage and yarn disorder problems, and enabled efficient continuous production.

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Abstract

This utility model discloses a continuous winding device for glass fiber reinforced plastic (GFRP) tubes, including a frame, a circumferential continuous fiber winding device and a chopped fiber winding device disposed on the frame; the circumferential continuous fiber winding device includes a circumferential fiber guiding device, which guides continuous fibers to be wound circumferentially on the surface of a mold; the chopped fiber winding device includes a chopped fiber cutting device, a guide trough inclinedly disposed at the bottom of the chopped fiber cutting device, a resin mixing device disposed on the frame, and a glue-coating trough disposed at the bottom of the resin mixing device, wherein the outlet of the resin mixing device is located above the glue-coating trough, and the guide trough and the glue-coating trough are located above the mold. The continuous winding device for GFRP tubes provided by this utility model can improve the axial and circumferential strength of GFRP tubes and increase production efficiency.
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