A sewing machine needle short thread device, and sewing machine

A sewing machine and short-thread technology, which is applied in the field of sewing machines, can solve the problems that the performance of sewing machines cannot meet the clothing technology and affect the appearance.

Active Publication Date: 2021-05-07
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For those high-end garment industries that have strict requirements on the length of thread ends, too long thread ends will greatly affect the appearance, making the performance of the sewing machine unable to meet the requirements of clothing technology

Method used

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  • A sewing machine needle short thread device, and sewing machine
  • A sewing machine needle short thread device, and sewing machine
  • A sewing machine needle short thread device, and sewing machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0076] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0077] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, there is no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the scope of technical content. At the same time, terms such as "upper", "lo...

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PUM

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Abstract

The invention provides a short thread end device for sewing machine condensing needles, which comprises a transmission member capable of acting on a cloth feeding mechanism in a sewing machine, a card slot provided on the transmission member, a stopper capable of moving toward or away from the card slot, and a driving The short-thread drive source for the movement of the stopper; when cutting the thread, the stopper is first driven by the short-thread drive source to move in the direction close to the card slot, so that the stopper abuts against the card slot, and then the shear in the sewing machine The thread mechanism executes the thread trimming action again. In this application, when thread trimming is required, the driving source of the short thread end is used first to make the stopper abut against the card slot, so in the subsequent thread trimming process, the cloth feeding mechanism produces a stitch distance of 0‑0.5mm, which is greatly reduced The needle pitch of the last stitch and the distance between the last needle hole and the needle drop hole on the needle plate can greatly shorten the length of the bottom thread left on the sewing material after thread trimming, and realize the trimming effect of short thread ends. Effectively improve the performance of the sewing machine.

Description

technical field [0001] The invention relates to a short thread end device for a sewing machine needle. [0002] The present invention also relates to a sewing machine comprising the above-mentioned sewing machine needle short thread end device. Background technique [0003] At present, when the sewing machine finishes sewing and performs thread trimming, its action sequence is as follows: the needle of the sewing machine starts to move up from the lowest point, at this time, the thread trimming drive source in the thread trimming mechanism of the sewing machine (generally energized by the thread trimming electromagnet) suction), so that the movable knife in the thread trimming mechanism moves to start thread trimming, and finally the suture is cut off by the cooperation of the movable knife and the fixed knife. However, during the thread trimming process from the beginning of the thread trimming action to the actual cutting of the suture, the main shaft of the sewing machin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B69/00D05B69/10D05B65/00
CPCD05B65/00D05B69/00D05B69/10
Inventor 郑聪李军飞黄学士
Owner JACK SEWING MASCH CO LTD
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