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Sewing machine thread trimming device and using method thereof

A sewing machine and thread trimming technology, applied in the sewing machine to cut off the thread mechanism, sewing machine components, sewing equipment, etc., can solve the problems of continuous cutting, reduced thread trimming effect, and affecting the work efficiency of staff, so as to maintain sharpness and use convenient effect

Inactive Publication Date: 2021-08-06
彭龙凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of science, electric sewing machines are almost completely popularized, and some electric sewing machines also have the function of automatic thread trimming, but the function of the existing sewing machine thread trimmer is too single, and after a long time of use, the effect of thread trimming is greatly reduced , it is prone to continuous cutting, and it affects the work efficiency of the staff

Method used

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  • Sewing machine thread trimming device and using method thereof
  • Sewing machine thread trimming device and using method thereof
  • Sewing machine thread trimming device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] refer to Figure 1-6, a sewing machine thread trimming device, comprising a device plate 1, the side wall of the device plate 1 is provided with a thread trimming slot 2, the left and right inner walls of the thread trimming slot 2 are provided with a chute 3 and a card slot 5, and the chute 3 is slidingly connected with The blade 4, the device board 1 is provided with an air storage tank 6, the inner wall of the chute 3 is provided with a sliding chamber 7, and the sliding chamber 7 is slidably connected with a piston 8, and the side wall of the piston 8 and the side wall of the blade 4 are connected by a connecting rod 9 fixed connection, the blade 4 and the inner wall of the chute 3 are elastically connected by the return spring 10, the air outlet pipe 11 of the gas storage tank 6 extends into the sliding chamber 7, and the first valve 15 is fixedly installed in the air outlet pipe 11, and the air outlet pipe The end side wall of 11 is fixedly connected with an air r...

Embodiment 2

[0042] refer to Figure 5-6 , is basically the same as that of Embodiment 1, and furthermore, the thread pressing mechanism includes a device box 12 fixedly connected to the upper and lower side walls of the blade 4, and the two device boxes 12 are slidably connected with a pressing plate 13 extending to the outer wall, and the pressing plate 13 It is elastically connected with the inner wall of the device box 12 by a tensioning spring 14. When the blade 4 slides in the slot 5, the blade 4 will drive the device box 12 to slide in the direction of the slot 5, and the device box 12 will drive the pressing plate 13 to the direction of the slot 5. Draw-in groove 5 direction slides, and two pressing plates 13 then can be pressed silk thread on the inwall of thread cutting groove 2, and under the effect of tensioning spring 14 elastically hold tight, thereby make blade 4 cut silk thread more conveniently.

[0043] Furthermore, the end of the pressing plate 13 is fixedly connected wi...

Embodiment 3

[0045] refer to figure 1 , is basically the same as Embodiment 1, and furthermore: the inflation mechanism includes an air pump 17 fixedly installed in the device cavity 16, and the inflation tube 18 of the air pump 17 is fixedly connected and communicated with the air storage tank 6, and the side of the air pump 17 The wall is rotatably connected with a reciprocating lead screw 19, the other end of the reciprocating lead screw 19 is fixedly connected with the driving shaft of the sewing machine, the outer wall of the reciprocating lead screw 19 is provided with a lead screw slider 20 cooperating with it, and the side wall of the lead screw slider 20 It is fixedly connected with the end of the push rod 21 of the pump 17. During the operation of the sewing machine, the sewing machine drives the reciprocating screw 19 to rotate through the main shaft, and the reciprocating screw 19 will drive the screw slider 20 to slide back and forth, and the screw slider 20 will Drive the pus...

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Abstract

The invention discloses a sewing machine thread trimming device and a using method thereof, and belongs to the field of sewing machines. The sewing machine thread trimming device comprises a device plate; a thread trimming groove is formed in the side wall of the device plate; a sliding groove and a clamping groove are formed in the left inner wall and the right inner wall of the thread trimming groove; a blade is slidably connected into the sliding groove; an air storage tank is arranged in the device plate; a sliding cavity is formed in the inner wall of the sliding groove; a piston is slidably connected into the sliding cavity; the side wall of the piston is fixedly connected with the side wall of the blade through a connecting rod; the blade is elastically connected with the inner wall of the sliding groove through a reset spring; an air outlet pipe of the air storage tank extends into the sliding cavity; silk thread abutting mechanisms are arranged on the upper side wall and the lower side wall of the blade; a device cavity is formed in the device plate; and an air inflation mechanism connected with the air storage tank is arranged in the device cavity. The thread trimming device can fix a silk thread during thread trimming, so that the thread trimming efficiency is higher, and the functions are more complete.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine thread trimmer and a use 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, and interweaves or sews one or more layers of sewing materials. The sewing machine can sew cotton, hemp, silk, Wool, artificial fiber and other fabrics and leather, plastic, paper and other products, the stitches are neat and beautiful, flat and firm, with fast sewing speed and easy use. [0003] With the rapid development of science, electric sewing machines are almost completely popularized, and some electric sewing machines also have the function of automatic thread trimming, but the function of the existing sewing machine thread trimmer is too single, and after a long time of use, the effect of thread trimming is greatly reduced , It is prone to continuous cuttin...

Claims

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Application Information

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IPC IPC(8): D05B65/00D05B81/00
CPCD05B65/00D05B81/00
Inventor 彭龙凤
Owner 彭龙凤
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