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Sewing machine feeding mechanism

A material feeding mechanism and sewing machine technology, applied in the direction of cloth feeding mechanism, sewing machine components, sewing machine control devices, etc., can solve the problems of different tooth lifting heights for thick and thin materials, and achieve the effects of convenient conversion, simple and convenient use, and compact structure

Inactive Publication Date: 2015-11-25
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sewing machine feeding mechanism that does not need to replace the lifting eccentric wheel to solve the problem that thick and thin materials require different lifting heights

Method used

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Experimental program
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Embodiment Construction

[0023] The present invention will be further described below with specific embodiment, see figure 1 —4:

[0024] A feeding mechanism for a sewing machine, comprising a tooth lifting shaft 1 and a feeding shaft 2, the tooth lifting shaft 1 and the feeding shaft 2 are arranged on a bottom plate 16, the tooth lifting shaft 1 is provided with a tooth lifting eccentric wheel, the tooth lifting eccentric wheel and the tooth lifting eccentric Shaft 1 is arranged eccentrically, and connecting rod 9 is also arranged eccentrically on the tooth lifting eccentric wheel. Feeding arm 10 is housed on the feeding shaft 2. The tooth eccentric wheel can rotate around the tooth lifting shaft 1 to adjust the tooth lifting eccentricity.

[0025] The tooth-lifting shaft 1 includes a tooth-lifting shaft main body 4, a shaft section 5 arranged at the front end of the tooth-lifting shaft main body 4, and the shaft section 5 is eccentrically arranged with the tooth-lifting shaft main body 4; the tooth...

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PUM

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Abstract

The invention belongs to the technical field of sewing machines, in particular to a sewing machine feeding mechanism which includes a feed lifting rock shaft and a feed shaft, wherein a feed lifting eccentric gear is arranged on the feed lifting rock shaft; the feed lifting eccentric gear and the feed lifting rock shaft are arranged in an eccentric manner; a connecting rod is eccentrically arranged on the feed lifting eccentric gear; a feed arm is mounted on the feed shaft; the connecting rod and the feed arm are connected through a pin and a feed brace; the feed lifting eccentric gear can rotationally adjust the feed lifting eccentric magnitude around the feed lifting rock shaft. According to the invention, a simple adjusting manner is adopted to adjust the feed lifting height of the sewing machine, so as to adapt to the sewing of fabric with different thickness, can replace the conventional manner that parts are required to be replaced to change the feed lifting height; in addition, the simple adjusting manner is continuous stepless adjustment and has the advantage that the adjustable range is large.

Description

Technical field: [0001] The invention belongs to the technical field of sewing machines, in particular to a sewing machine feeding mechanism. Background technique: [0002] The feeding mechanism of the sewing machine needs to set different lifting heights for fabrics of different thicknesses during sewing. Thin fabrics need a low lifting height to sew beautiful stitches, and thick materials need a high lifting height to feed the fabric. [0003] At present, our sewing machine feeding mechanism adopts the method of using different sizes of special lifting eccentric wheels for the thick material model and the thin material model respectively to solve the problem that thick and thin materials require different lifting heights. It has poor versatility, and the sewing machine is specially set to sew thick or thin materials, and the cost of use is high. Invention content: [0004] The purpose of the present invention is to provide a sewing machine feeding mechanism that does no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B27/02D05B69/02
Inventor 管建平蒋昌林潘建国
Owner JACK SEWING MASCH CO LTD