Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same

A technology of feeding mechanism and sewing machine, which is applied in the direction of feeding mechanism, sewing machine components, sewing equipment, etc., can solve the problems of inability to sew differential effect sewn products, wrinkling, and inability to achieve sewing material.

Active Publication Date: 2010-08-04
SHANGHAI HUIGONG NO 3 SEWING MACHINE FACTORY CHINA TYPICAL SEWING MACHINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is to provide a differential feeding mechanism on a medium-weight material sewing machine with shrinkage function, so as to solve the problem that the traditional medium-weight material composite feeding sewing machine cannot sew sewn products with differential ef

Method used

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  • Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same
  • Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same
  • Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same

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Embodiment Construction

[0038] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the structure of the present invention will be further elaborated below in conjunction with specific diagrams.

[0039] see Figure 3 to Figure 7 , The upper differential feeding mechanism with the shrinkage function of the medium-heavy material sewing machine is installed in the left side window of the casing. The two ends of the presser foot swing shaft 13 of the upper differential feeding mechanism are fixedly equipped with a crank 21 and a presser foot swing crank 12 by screws, and the presser foot swing shaft 13 synchronously drives the crank 21 and the presser foot swing crank 12 to swing.

[0040] The cloth feed crank 22 and the needle plate crank 24 are fixedly installed on the cloth feed shaft 23 by screws. The plate 7 moves back and forth, and the feeding teeth on the needle plate 7 realize the feeding of the lower layer sewing mate...

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Abstract

The invention discloses an upper differential feeding mechanism with a contraction joint function of a medium-thickness material sewing machine, which comprises a presser foot oscillating shaft, a crank, a presser foot oscillating crank, a cloth feeding shaft, a cloth feeding crank, a crank connecting rod, a presser foot connecting rod I, a presser foot connecting rod II, an outer presser foot, an adjusting swing link shaft and an adjusting swing link, wherein the adjusting swing link is arranged on the adjusting swing link shaft and can adjust the swinging of the adjusting swing link shaft; the adjusting swing link shaft is connected with the crank through a connecting rod I; and the other end of the crank connecting rod is in slip connection with the crank. The upper differential feeding mechanism changes the cloth feeding amount of the outer presser foot to achieve an effect of an upper differential contraction joint. The invention also discloses an upper feeding wrinkling mechanism using the upper differential feeding mechanism, which uses the interaction of the outer presser foot and a rear presser foot to form wrinkles.

Description

technical field [0001] The invention relates to an upper feeding mechanism of an industrial medium-weight material sewing machine, in particular to an upper differential feeding mechanism with a shrinkage function of a medium-weight material sewing machine and an upper feeding wrinkling mechanism using the mechanism. Background technique [0002] see figure 1 and figure 2 Generally, the upper feeding mechanism of a conventional medium-heavy material compound feeding sewing machine includes a swing shaft 29, a crank 30 and a swing crank 38 are fixed at both ends of the swing shaft 29, one end of the crank connecting rod 31 is fixedly connected with the crank 30, and the crank connecting rod 31 The other end is fixedly connected with the cloth feeding crank 33, and the swing crank 38 is connected with the adjusting fork 37, and the adjusting fork 37 is connected with the presser foot connecting rod 32 through the connecting rod 36, and an external presser is fixed at the bot...

Claims

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Application Information

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IPC IPC(8): D05B27/08D05B35/08
Inventor 罗一明邓倩黄忠亮
Owner SHANGHAI HUIGONG NO 3 SEWING MACHINE FACTORY CHINA TYPICAL SEWING MACHINE
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