Thread trimming device on sewing machine and operation method of thread trimming device

A sewing machine and thread trimming technology, applied in the field of thread trimming devices, can solve problems such as low thread trimming efficiency, and achieve the effects of preventing rust and high efficiency

Inactive Publication Date: 2020-12-04
吴丽仙
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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 solve the problem of low thread-cutting efficiency after the thread-cutting device becomes blunt in the prior art, and propose a thread-cutting device on a sewing machine and its operating method

Method used

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  • Thread trimming device on sewing machine and operation method of thread trimming device
  • Thread trimming device on sewing machine and operation method of thread trimming device
  • Thread trimming device on sewing machine and operation method of thread trimming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to Figure 1-7 , a thread trimming device on a sewing machine and an operation method thereof, comprising a device box 1 and a C-shaped block 3 fixedly installed on the sewing machine, an electromagnet 2 is fixedly installed on the right side inner wall of the device box 1, and an inner slide of the device box 1 A permanent magnet 4 corresponding to the electromagnet 2 is connected, and the permanent magnet 4 is elastically connected to the left inner wall of the device box 1 by a return spring 5. The left end of the permanent magnet 4 is fixedly connected with a slide bar 6 extending to the outer wall. The left end of 6 is fixedly connected with device block 8, is provided with positioning device between the left side of device block 8 and C-shaped block 3, and the left side of device block 8 is provided with device groove 9, is connected with and connected with by reciprocating mechanism in device groove 9. The blade 15 corresponding to the 3 grooves of the C-sh...

Embodiment 2

[0039] refer to figure 1, is basically the same as Embodiment 1, furthermore: the positioning device includes two slideways 10 arranged on the left side of the device block 8, and the top pressure plate corresponding to the right end of the C-shaped block 3 is slidably connected in the two slideways 10 11. The top pressure plate 11 and the inner wall of the slideway 10 are elastically connected by the top pressure spring 12, the permanent magnet 4 will drive the device block 8 to slide to the left through the slide bar 6, and the device block 8 will drive the two top pressure plates on the left side wall 11 is pressed against the right side wall of the C-shaped block 3, so as to fix the upper and lower ends of the line segment between the two top pressure plates 11 and the C-shaped block 3. At this time, when the end line is cut, the line is easier to cut under stress .

[0040] Furthermore, the left ends of the two top pressure plates 11 are provided with a semicircular groo...

Embodiment 3

[0042] refer to Figure 1-4 , is basically the same as Embodiment 1, furthermore: the reciprocating mechanism includes chute 21 arranged on the upper and lower side walls of the device groove 9, the two chute 21 are slidingly connected to the mounting plate 14, and the blade 15 is fixedly installed on the mounting plate 14 Side walls, the front and rear side walls of the device box 1 are all fixedly connected with a wave linear plate 22, and the front and rear side walls of the mounting plate 14 are all slidably connected to the side walls of the wave linear plate 22. After the line is fixed, the device block 8 continues to the left At this time, the pressing plate 11 will overcome the pressing spring 12 and retract into the slideway 10, while the blade 15 slides in the direction of the thread and cuts the thread. Sliding back and forth makes it easier for the blade 15 to cut off the wire segment, even if the blade 15 becomes blunt, the wire can be cut off, so that the wire cu...

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Abstract

The invention discloses a thread trimming device on a sewing machine and an operation method of the thread trimming device, and belongs to the technical field of textile equipment. The thread trimmingdevice on the sewing machine comprises a device box and a C-shaped block which are fixedly installed on the sewing machine, wherein an electromagnet is fixedly installed on the inner wall of the right side of the device box, a permanent magnet corresponding to the electromagnet is connected into the device box in a sliding mode, the permanent magnet is elastically connected with the inner wall ofthe left side of the device box through a reset spring, a sliding rod extending to the outer wall is fixedly connected to the left end of the permanent magnet, a device block is fixedly connected tothe left end of the sliding rod, a positioning device is arranged between the left side of the device block and the C-shaped block, a blade corresponding to a groove of the C-shaped block is connectedinto a device groove through a reciprocating mechanism, and an anti-rust device is arranged on the outer wall of the blade. When the thread trimming device is used for trimming a thread, the thread is fixed and the blade slides back and forth during thread trimming, so that the thread trimming efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of textile equipment, in particular to a thread trimmer on a sewing machine and an operating method thereof. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. And it derived art forms such as hand-push embroidery and computer embroidery. [0003] Existing sewing machines are generally equipped with an automatic thread trimmer. After the cloth is put into the sewing machine and started to be sewn in place, the automatic thread trimmer can be used to cut the thread to separate the thread from the cloth, which can save sewing time. time and reduce the labor intensity of sewing workers, but the existing thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/00D05B81/00B05C1/02
CPCB05C1/02D05B65/00D05B81/00
Inventor 吴丽仙
Owner 吴丽仙
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