Superconducting permanent magnet sheet shuttle for heavy duty wide fabric weft insertion and its recovery device

CN116516557BActive Publication Date: 2026-06-23WUHAN TEXTILE UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN TEXTILE UNIV
Filing Date
2023-03-27
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing electromagnetic weft insertion technology suffers from problems such as complex calculations, low accuracy, uncontrollable speed, high friction, and narrow weft adaptability in heavy-duty wide-width fabrics, which limits the application of rapier looms in weft insertion of heavy-duty wide-width fabrics.

Method used

The superconducting permanent magnet shuttle utilizes the interaction between the permanent magnet array on the lower end face of the shuttle body and the traveling wave magnetic field to provide driving and braking forces. The superconductor is suspended on the permanent magnet array track, and speed is controlled by controlling the electromagnetic force. Combined with the design of the weft clamp and synchronous belt, stable suspension and simple operation are achieved.

Benefits of technology

It enables stable weft insertion for heavy-duty wide-width fabrics, improves the adaptability of weft yarns, simplifies the installation and disassembly process of the shuttle, enhances cooling effect and operational reliability, avoids friction and complex calculations, and expands the weft insertion range.

✦ Generated by Eureka AI based on patent content.

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Abstract

A superconducting permanent magnetic piece shuttle for heavy load wide fabric weft insertion and its recovery device, including shuttle body, superconductor, permanent magnet array and weft gripper, the middle part of the lower end surface of the shuttle body is provided with the permanent magnet array which interacts with the traveling wave magnetic field to realize the weft insertion movement of the piece shuttle, the inside of the shuttle body is provided with the weft gripper for clamping weft, both sides of the shuttle body are provided with a number of through cavities, both sides of the shuttle body are provided with a number of grooves which are communicated with the through cavities, the superconductor which interacts with the track of the permanent magnet array to realize the suspension of the piece shuttle is inserted in the through cavities; the recovery device includes three-axis moving chuck and synchronous belt, the synchronous belt includes a number of synchronous belts, the first synchronous belt is arranged downwardly, the second synchronous belt is arranged horizontally, the two sides of the second synchronous belt are provided with liquid nitrogen pools for cooling the superconductor through the grooves. The design not only realizes the weft insertion of heavy load wide fabric, but also improves the adaptability of weft.
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