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A kind of feeding mechanism and sewing machine

A technology of feeding mechanism and machine needle, which is applied to cloth feeding mechanism, sewing machine components, needle seat for sewing machine, etc., can solve the problems of high use cost and complex structure, and achieve the effect of low cost, simple mechanical structure and weight reduction.

Active Publication Date: 2020-04-07
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And, the reverse sewing platform mechanism 10 needs the oil supply system of the reverse sewing platform to carry out the oil supply. Relevant moving parts supply oil, complex structure and high cost

Method used

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  • A kind of feeding mechanism and sewing machine
  • A kind of feeding mechanism and sewing machine
  • A kind of feeding mechanism and sewing machine

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Embodiment Construction

[0033] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0034] Such as Figure 4 shown. A feeding mechanism, comprising a needle bar support swing shaft 20, an upper shaft 30, and a lower shaft 40, one end of the needle bar support swing shaft 20 is connected to a motor through a connecting rod assembly, and the other end is provided with a needle bar support 50, the needle At least two needle bars 60 are arranged on the bar support 50, and when the multi-needle machine is used, the number of needle bars 60 increases accordingly. This embodiment takes a double-needle machine as an example. Therefore, there are two needle bars 60, and the two machine needles 70 are respectively arranged on the corresponding two needle bars 60. The motor drives the swing shaft 20 of the needle b...

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Abstract

The invention belongs to the technical field of sewing equipment, and relates to a double-needle feeding mechanism and a sewing machine. One end of a needle bar support is provided with a swing shaft, the other end of the needle bar support is provided with a needle bar seat, the needle bar seat is connected with at least two needle bars, and a motor drives the needle bar support swing shaft to swing through a connecting rod assembly and furthermore drives needles on the needle bars to feed materials back and forth. The needle bar support swing shaft is connected with a cloth feeding shaft through a large connecting rod assembly, swing of the needle bar support swing shaft drives a feed dog assembly on the cloth feeding shaft to move back and forth, an upper shaft motor drives an upper shaft to rotate and furthermore drives a three-eye connecting rod and the needle bar seat to move, and therefore the needles move up and down; the upper shaft is connected with a lower shaft through a synchronous belt mechanism, the lower shaft is provided with a feed lifting cam, the feed lifting cam is arranged on a feed lifting fork, and the lower shaft rotates and drives the feed dog assembly connected to the feed lifting fork to move up and down. According to the invention, a backstitch bench mechanism, a cloth feeding connecting rod mechanism and a needle pitch adjusting mechanism and the like are removed, a stepping motor carries out driving through the connecting rod assembly, and the structure is simpler and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, and relates to a feeding mechanism and a sewing machine. Background technique [0002] The traditional double-needle machine feeding mechanism is mainly composed of three major mechanisms, such as the needle distance adjustment mechanism, the reverse sewing table mechanism, and the feeding mechanism (see figure 1 ). [0003] The working principle of the traditional double-needle feeding mechanism is: [0004] (1) The upper shaft 1 is directly driven by the motor 2, and the power of the upper shaft is transmitted to the lower shaft 4 through the timing belt 3; [0005] (2) The tooth-lifting cam 5 is installed on the lower shaft 4, and the tooth-lifting cam 5 is an eccentric structure, and the tooth-lifting cam 5 is driven to rotate by the lower shaft 4, and the tooth-lifting fork 7 is connected on the cloth feeding dog assembly 6, and the tooth-lifting fork 7 and The tooth lifting cam ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B55/14D05B69/02D05B27/02D05B69/10
CPCD05B27/02D05B55/14D05B69/02D05B69/10
Inventor 王明敏其他发明人请求不公开姓名
Owner JACK SEWING MASCH CO LTD
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