Thread take-up crank for sewing machine

A technology of thread take-up crank and sewing machine, which is applied in the field of thread take-up crank, can solve the problems of object and work influence, large space occupation of thread take-up crank, time-consuming and labor-intensive problems, etc., and achieve the effect of convenient and quick height adjustment work and reducing waste

Pending Publication Date: 2018-06-12
SUZHOU QIANGYI MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current thread take-up crank for sewing machines needs to be replaced with different needle button holders due to different working environments, and the needle button holders need to be adjusted to different heights to meet different work requirements. It is time-consuming and labor-intensive to use the thread crank to meet the work requirements, and the thread take-up crank occupies a large area, which will have a certain impact on both the object and the work.

Method used

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  • Thread take-up crank for sewing machine
  • Thread take-up crank for sewing machine

Examples

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Embodiment Construction

[0013] 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.

[0014] see figure 1 , figure 1 It is a structural schematic diagram of the present invention; a thread take-up crank for a sewing machine includes a thread take-up crank 1, a needle bar connecting rod 2 is installed above the thread take-up crank 1, and the upper middle part of the needle bar connecting rod 2 passes through a bearing 3 A pin buckle frame 4 is movably connected, and the bearing one 3 is installed under the pin buckle frame 4. The bearing one 3...

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Abstract

The invention discloses a thread take-up crank for a sewing machine. The thread take-up crank comprises a thread take-up crank body. A needle bar connecting bar is installed above the thread take-up crank body, the middle of the upper portion of the needle bar connecting bar is movably connected with a needle button frame through a first bearing, the first bearing is installed below the needle button frame, a movable disc and a movable nut are installed on the side, away from the first bearing, of the needle button frame, the movable nut is installed in the middle of the movable disc, a needlebutton hole is formed in the upper portion of the needle button frame, a second bearing is movably connected to one side of the thread take-up crank body, and a thread connecting disc is installed onthe side, away from the thread take-up crank body, of the second bearing. According to the thread take-up crank for the sewing machine, through the design of the movable disc and the movable nut, theheight adjusting work of the needle button frame is convenient and quick, and waste of parts is relieved.

Description

technical field [0001] The invention relates to the technical field of external adjustment of equipment, in particular to a thread take-up crank for a sewing machine. Background technique [0002] A multi-needle sewing machine is a chain stitch sewing machine that can hold several needles. Each needle carries an upper thread through the sewing material and the bobbin thread carried by the corresponding looper interweaves to form a double-thread chain stitch. For example, a twelve-needle machine has twelve needles and twelve loopers, so there are twelve upper threads and twelve lower threads, and twelve chain stitches can be sewn at the same time during work. [0003] The current thread take-up crank for sewing machines needs to be replaced with different needle button holders due to different working environments, and the needle button holders need to be adjusted to different heights to meet different work requirements. It is time-consuming and labor-intensive to use the t...

Claims

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Application Information

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IPC IPC(8): D05B49/00D05B69/02D05B55/00
CPCD05B49/00D05B55/00D05B69/02
Inventor 王俊逸王志强
Owner SUZHOU QIANGYI MACHINERY CO LTD
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