Intermittent tuck device for a sewing machine

By using the intermittent pleating device of the sewing machine, and through the combination of the drive shaft, transmission mechanism and power mechanism, the pleating and non-pleating can be switched at will. This solves the problems of the inability to control the switching between pleating and non-pleating in the existing technology, as well as the problems of thread breakage and pleat detachment at the beginning and end of sewing thick materials, and improves the product qualification rate.

CN119121521BActive Publication Date: 2026-06-26敬涛
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
敬涛
Filing Date
2023-11-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing pleating machines cannot control the switching between pleating and not pleating at will, and cannot solve the problems of thread unraveling and pleat detachment when sewing thick materials.

Method used

An intermittent pleating device for a sewing machine is adopted. Through the combination of a drive shaft, a transmission mechanism, a pleating mechanism, and a power mechanism, the device can switch between pleating and non-pleating at will. It includes the transmission connection of an eccentric wheel, a connecting rod, a pin screw, and a transmission shaft crank. Combined with the power control of an electromagnet and a spring, the device enables convenient and quick operation of closing and lifting the transmission mechanism.

Benefits of technology

It enables easy switching between pleating and not pleating, solves the problem of thread breakage and pleat unraveling at the beginning and end of sewing thick materials, and improves the product qualification rate.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN119121521B_ABST
    Figure CN119121521B_ABST
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Abstract

The application discloses an intermittent pleating device of a sewing machine, which comprises a machine head, a driving shaft arranged on the machine head, a transmission mechanism connected with the driving shaft, a transmission shaft connected with the transmission mechanism, a pleating mechanism connected with the transmission shaft, a power mechanism connected with the transmission mechanism, and the power mechanism is used for lifting the transmission mechanism; the driving shaft of the transmission mechanism is connected with an eccentric wheel, the eccentric wheel is connected with a first connecting rod, the first connecting rod is connected with a second connecting rod through a pin shaft screw, the second connecting rod is connected with the transmission shaft through a transmission shaft crank, one end of the second connecting rod is connected with a closing mechanism, the closing mechanism is connected with the machine head away from the end of the second connecting rod, one end of the machine head is rotationally connected with a lever, the other end of the lever is corresponding to the transmission mechanism, and the lever is connected with the power mechanism; the above structure is adopted, the structure is applied to the pleating of a clothing fabric, the closing and separating operations of the transmission mechanism are convenient and fast, and the structure is suitable for the pleating of the clothing fabric.
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