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Sewing machine needle distance regulating mechanism

A technology of needle distance adjustment and adjustment mechanism, which is applied in the field of sewing machines, can solve the problems such as the inconvenience of needle distance adjustment, and achieve the effect of improving sewing efficiency and simple operation

Inactive Publication Date: 2008-04-30
SHANGHAI HUIGONG NO 3 SEWING MACHINE FACTORY CHINA TYPICAL SEWING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned inconvenient problem of adjusting the stitch length of the existing sewing machine, the object of the present invention is to provide a novel sewing machine stitch length adjustment mechanism, which can exchange two different stitch lengths without stopping the machine.

Method used

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  • Sewing machine needle distance regulating mechanism
  • Sewing machine needle distance regulating mechanism
  • Sewing machine needle distance regulating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Such as figure 1 , figure 2 As shown, the stitch length adjustment swing rod 2 is axially fixed on the casing (the casing is not shown in the figure) through the stitch length adjustment swing rod pin 3 and the stitch length adjustment swing rod washer 1 . Backtacking shaft 16 is installed on the casing by backtacking shaft bushing (front) 17 and backtacking shaft bushing (rear) 32, tight ring 30 and tight ring screw 31. As shown in FIG. 3 , the backtack crank (top) 29 is fixed on the backtack shaft 16 by the backtack crank set screw 14 . Back stitching platform 22 is installed on the base plate (base plate is not drawn among the figure), and back stitching crank (down) 23 is connected together with back stitching platform 22 by back stitching crank (down) screw 24.

[0028] The large gauge gauge panel 11 is pasted on the gauge gauge 10, and there is a gauge gauge positioning plate 9 thereafter, and the large gauge gauge panel 11 and the gauge gauge pass through the ...

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Abstract

The invention discloses a needle distance adjusting mechanism of a sewing machine, which comprises a needle distance adjusting device, a needle distance adjusting swinging rod, a back sewing crank, and a back sewing table. The needle distance adjusting device has two groups, namely, a large needle distance adjusting device and a small needle distance adjusting device, wherein, the large needle distance adjusting device consists of a large needle distance adjusting threaded rod, a needle distance index disc positioning plate, a needle distance index disc, and a large needle distance index disc panel; the small needle distance adjusting device consists of a small needle distance adjusting threaded rod, a needle distance index disc positioning plate, a needle distance index disc, and a small needle distance index disc panel; the needle distance adjusting swinging rod is driven by a back sewing full needle cylinder and respectively contacted with the large needle distance adjusting threaded rod and the small needle distance adjusting threaded rod. Through the driving of the back sewing full needle cylinder, the product of the invention easily realizes the mutual conversion between the large needle distance adjusting device and the small needle distance adjusting device, and has the advantages that the operation is simple, the sewing efficiency is improved, etc.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a novel stitch length adjusting mechanism of the sewing machine. Background technique [0002] The existing sewing machine needle pitch adjustment mechanism has the following problems: If the user wants to adjust the needle pitch smaller during the sewing process, he must stop the machine, adjust the dial, and then step on the sewing machine to achieve the desired stitch pitch. Also will stop the mechanical adjustment dial, just can restore to the original state, so it is very inconvenient to use, and the existing sewing machine needle pitch adjustment mechanism needs to be further improved. Contents of the invention [0003] In order to overcome the above-mentioned inconvenient problem of adjusting the stitch length of the existing sewing machine, the object of the present invention is to provide a novel sewing machine stitch length adjustment mechanism, which can exchange two different sti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B55/00
Inventor 应昶杨根民金波
Owner SHANGHAI HUIGONG NO 3 SEWING MACHINE FACTORY CHINA TYPICAL SEWING MACHINE
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