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Automatic upper thread breaking device for sewing machine

A sewing machine and upper thread technology, applied in the sewing machine to cut off the thread mechanism, sewing machine components, sewing equipment, etc., can solve the problems of wasting labor, increasing working time, long thread ends, etc., achieve flexible operation, avoid cutting errors, and simple structure Effect

Pending Publication Date: 2021-08-10
ZHONGSHAN GREATPET INTERNATIONL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the sewing machines on the market can realize the function of automatic thread breaking. It cuts through the bite between the knives. The length of remaining thread ends on the sewing material after the thread is more than 5mm. When the tool bite is not good or the sensor is installed in an improper position, the thread ends remaining on the surface of the sewing material after thread breakage will be longer. In order to remove the thread ends, manual secondary cutting is required. line, not only increases the working time, but also wastes a lot of labor

Method used

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  • Automatic upper thread breaking device for sewing machine
  • Automatic upper thread breaking device for sewing machine
  • Automatic upper thread breaking device for sewing machine

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] The embodiment of the present invention discloses an upper thread automatic cutting device for sewing machines. Referring to the accompanying drawings, the sewing machine includes a base and a head mounting frame 4 fixed on the base, which is installed on the base corresponding to the workbench below the head. 5, and the bottom thread breaking device 6 installed on the bottom surface of the workbench 5, the machine head has a sewing needle bar 7, and the...

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Abstract

The invention discloses an automatic upper thread breaking device for a sewing machine. The sewing machine comprises a base, a machine head mounting rack fixed on the base, a machine head mounted on the machine head mounting rack, a working table mounted on the base and corresponding to the lower part of the machine head, and a bottom thread breaking device mounted on the bottom surface of the working table; the machine head is provided with a sewing needle rod; the bottom thread breaking device is arranged below a needle head at the end of the needle rod; and the automatic upper thread breaking device comprises a thread sweeping mechanism, a tensioning mechanism and a thread breaking mechanism. According to the automatic upper thread breaking device for the sewing machine, automatic thread breaking can be achieved in the sewing process, the length of a thread end left on a sewing material after thread breaking can be smaller than 1 mm, and manual secondary trimming is not needed.

Description

technical field [0001] The invention relates to the technical field of sewing, in particular to an automatic upper thread breaking device used on a sewing machine. Background technique [0002] At present, the sewing machines on the market can realize the function of automatic thread breaking. It cuts through the bite between the knives. The length of remaining thread ends on the sewing material after the thread is more than 5mm. When the tool bite is not good or the sensor is installed in an improper position, the thread ends remaining on the surface of the sewing material after thread breakage will be longer. In order to remove the thread ends, manual secondary cutting is required. Lines not only increase the working time, but also waste a lot of labor. [0003] Therefore, how to provide a sewing machine with better effect, so that the length of the thread remaining on the sewing material after the thread is broken is shorter, without manual secondary operation is an urge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/00
CPCD05B65/006
Inventor 银林
Owner ZHONGSHAN GREATPET INTERNATIONL CO LTD
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