A yarn-breaking automatic stop protection device for sewing machines used in underwear production lines

By designing a sewing machine yarn breaking self-stop protection device for underwear production line in a sewing machine, using a dual detection mechanism and a plywood storage method, the problem of prone to failures in the detection of yarn breaking of sewing machines and changes in sewing threads in the prior art is solved, and more accurate detection and more stable sewing machine operation are achieved.

CN222730087UActive Publication Date: 2025-04-08ZHEJIANG ZHENGHAO GARMENT CO LTD
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Patent Information

Application Number
CN202422043721.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-04-08
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

The existing sewing machine weft detectors, yarn breaking self-stop protectors are prone to failure during use, and the shaking of the sewing threads causes tightness changes, affecting the use of the sewing machine.

Method used

A sewing machine yarn breaking self-stop protection device for underwear production line is designed, and a dual detection mechanism is used to cooperate with the transmitter through the trigger mechanism to ensure the accuracy of the detection results. At the same time, the sewing thread is stored using a plywood to keep the sewing thread in a straightened state and prevent elastic and tight changes.

Benefits of technology

The double detection mechanism improves the accuracy of the detection results, prevents the difficulty of using the sewing machine due to changes in tightness of the sewing thread, and ensures the stable operation of the sewing machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a yarn-breakage self-stop protection device for sewing machines used in underwear production lines, which relates to the field of textile technology, and includes a device body, a driving rod, a connecting belt, a driven rod, a winding reel, a linkage block, a top plate, a detector, and a transmitter. The inner side of the clamp is connected with an arc block, the outer side of the clamp is connected with an extension block, both sides of the clamp are connected with sliding blocks, the lower part of the clamp is connected with a reset spring, a trigger mechanism is arranged below the extension block, and an auxiliary block is arranged below the trigger mechanism. The utility model is provided with a transmitter and a detector above the clamp to cooperate with each other. When a yarn breakage occurs, the clamp is lowered to the farthest distance, and the distance between the transmitter and the detector becomes longer. When the maximum value is reached, the staff is reminded that a yarn breakage occurs. At the same time, a trigger mechanism is also connected to the other side of the clamp. When the clamp is lowered, the trigger mechanism also sends an alarm, and the detection result is accurate through double detection.
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Citation Information

Patent Citations

  • Broken yarn automatic stop protector of sewing machine broken yarn and weft yarn detector

    CN213113817U