Weft insertion structure for rapier loom

By introducing motor-driven moving components and adjustable clamping structures into the rapier loom, the stability and adaptability issues of the weft insertion structure were solved, enabling high-precision and high-efficiency production of the rapier loom.

CN224337852UActive Publication Date: 2026-06-09CANGNAN YIYUN TEXTILE CO LTD
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Patent Information

Application Number
CN202521077241.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-06-09
Estimated Expiration
2035-05-29

AI Technical Summary

Technical Problem

The existing weft insertion structure of rapier looms is prone to problems such as weft yarn entanglement with warp yarns and poor yarn clamping adjustment flexibility during high-speed weft insertion, resulting in reduced fabric quality and low production efficiency.

Method used

The movable components, consisting of a motor, coupling, lead screw, connecting sleeve, slider, and slide rail, enable precise movement of the rapier seat. The clamping position and force of the clamping plates are adjusted by positioning pins and rotatable bolts to ensure the stability and adaptability of weft insertion.

Benefits of technology

It improves the accuracy and stability of weft insertion, reduces the probability of weft yarn introduction failure, enhances the applicability of various weft yarns and the success rate of weft insertion, and improves fabric quality and production efficiency.

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Abstract

The utility model relates to the technical field of rapier looms, and discloses a weft insertion structure for a rapier loom, which is characterized in that two fixing plates for supporting are fixedly mounted at the center of the upper surface of a bottom plate, and a tension detection roller for detection is mounted between the two fixing plates; a rapier base used for supporting is arranged at the side end, corresponding to the fixing plate, of the upper surface of the bottom plate, a rapier used for moving is fixedly installed at one end of the rapier base, through combination of a motor, a coupler, a lead screw, a connecting sleeve rod, a sliding block and a sliding rail, accurate linear movement of the rapier base and the rapier can be achieved, the accuracy of the weft insertion position of the rapier every time is guaranteed, and the weft insertion efficiency is improved. The sliding block slides in the sliding rail, stable guiding is provided for movement of the rapier base, the problems of shaking, deviation and the like in the movement process are avoided, the stability of the weft insertion action is guaranteed, and the weft yarn introduction fault probability caused by unstable movement is reduced.
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