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Assistant threading device applied in infinite-rotating-needle-bar sewing machine

A threading device, sewing machine technology, applied to threading devices, sewing machine components, sewing equipment, etc., can solve problems such as threading difficulties, achieve the effects of improving economic benefits, improving quality assurance, and saving threading time

Inactive Publication Date: 2019-07-12
四川精上缝纫机有限公司
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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 provide an auxiliary threading device applied to sewing machines with infinitely rotating needle bars in order to solve the technical problems of threading difficulties in existing sewing machines with wirelessly rotating needle bars

Method used

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  • Assistant threading device applied in infinite-rotating-needle-bar sewing machine
  • Assistant threading device applied in infinite-rotating-needle-bar sewing machine
  • Assistant threading device applied in infinite-rotating-needle-bar sewing machine

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Experimental program
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Effect test

Embodiment 1

[0024] Such as Figures 1 to 5 As shown, this embodiment provides an auxiliary threading device applied to an infinitely rotating needle bar sewing machine, which includes a sewing thread that is installed on the sewing machine and can let the sewing thread pass through the hole 9 of the upper end hole 9 of the hollow needle bar 4 by blowing air. The blowing mechanism that passes out from the lower end hole 10 of the hollow needle bar 4 afterwards.

[0025] The air-blowing mechanism comprises the air channel 7 that can blow air into the orifice of the upper end hole 9 of the hollow needle rod 4 upper end, and the valve 6 that can control the opening and closing of the air channel 7, and one end of the valve 6 communicates with the air channel 7, and the valve 6 The other end is connected with the air source supply pipeline. The air outlet of air passage 7 is aimed at the aperture of the upper end hole 9 of hollow needle bar upper end, and the air inlet of air passage 7 is com...

Embodiment 2

[0029] Such as Figure 6 As shown, this embodiment provides an auxiliary threading device applied to an infinitely rotating needle bar sewing machine, which includes a sewing thread that is installed on the sewing machine and can let the sewing thread pass through the hole 9 of the upper end hole 9 of the hollow needle bar 4 by blowing air. The blowing mechanism that passes through from the lower end hole 10 of hollow needle bar afterwards.

[0030] The air blowing mechanism includes an air channel 7 capable of blowing air into the orifice at the upper end of the hollow needle rod, and a valve 6 capable of controlling the opening and closing of the air channel 7. One end of the valve 6 communicates with the air channel 7, and the other end of the valve 6 communicates with the air channel. The source supply line is connected. The air outlet of the air passage 7 is aligned with the aperture on the upper end of the hollow needle rod, the air inlet of the air passage 7 is communi...

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Abstract

The invention discloses an assistant threading device applied in an infinite-rotating-needle-bar sewing machine and relates to the technical field of sewing machinery. The assistant threading device comprises an air blowing structure arranged on the sewing machine and capable of allowing a sewing thread to penetrate in from an upper end hole of a hollow needle bar and then penetrate out from a lower end hole of the hollow needle bar by means of air blowing. The assistant threading device is simple in structure, and the technical problem that a sewing machine with an infinite rotating needle bar is difficult in threading in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of sewing machines, and more specifically relates to an auxiliary threading device applied to sewing machines with infinitely rotating needle bars. Background technique [0002] The applicant's prior patent application, the patent application number is: 201910093216.6, the patent name is: "A sewing machine needle bar and thread take-up mechanism capable of wireless rotation", which discloses that "the sewing thread passing through the thread take-up mechanism can pass through the needle The hollow area of ​​the needle bar directly passes through the needle hole of the machine needle. When the needle bar rotates, the sewing thread will not be wound on the needle bar, and the needle bar can rotate without limit". When using it for the first time or when you need to replace the sewing thread, you need to pass the sewing thread through the upper end of the hollow needle bar and finally pass it out from the lower...

Claims

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Application Information

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IPC IPC(8): D05B87/00
CPCD05B87/00
Inventor 张章生
Owner 四川精上缝纫机有限公司
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