Thread take-up mechanism for sewing machine and sewing machine

A technology for sewing machines and thread take-up levers, which is applied in the field of sewing machines and can solve problems such as difficult thread take-up timing and thread take-up stroke adjustment

Inactive Publication Date: 2019-03-01
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the sewing machine uses rotary hooks of different sizes, the thread take-up stroke needs to be adjusted accordingly. In the existing sewing machines, the size parameters of the thread take-up mechanism are all fixed values, so it is difficult to realize the adjustment of the thread take-up time and the thread take-up stroke. Therefore, a thread take-up mechanism with adjustable thread take-up time and thread take-up stroke is required

Method used

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  • Thread take-up mechanism for sewing machine and sewing machine
  • Thread take-up mechanism for sewing machine and sewing machine
  • Thread take-up mechanism for sewing machine and sewing machine

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Embodiment Construction

[0037] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0038] see Figure 1 to Figure 10 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same t...

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PUM

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Abstract

The invention provides a thread take-up mechanism for a sewing machine and the sewing machine. The thread take-up mechanism comprises a thread take-up rod, a connecting rod assembly and a fixedly arranged driving member, wherein the thread take-up rod is a bent member, the bent portion of the bent member is rotationally arranged, one end of the thread take-up rod is provided with a thread guide hole, one end of the connecting rod assembly is connected with the driving member, the other end of the connecting rod assembly is connected with the other end of the thread take-up rod, the driving member drives the connecting rod assembly to reciprocate between two states, the thread guide hole of the thread take-up rod is located at the lowest point in the first state, and the thread guide hole of the thread take-up rod is located at the highest point in the second state. The thread take-up mechanism for the sewing machine and the sewing machine have the advantages that by changing the swinging scope of the driving member, the stroke of the thread guide hole in the thread take-up rod can be changed, or the thread take-up moment is changed when the stroke of the thread guide hole in the thread take-up rod does not change, so that the thread take-up mechanism adapts to sewing of sewing materials of different thicknesses, and the amount of thread take-up can be adjusted according to different rotating shuttles.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a thread take-up mechanism for sewing machines and the sewing machine. Background technique [0002] A sewing machine is exactly a machine that sews sewing materials by sutures, including a needle bar mechanism, a thread take-up mechanism, a feeding mechanism, a thread hook mechanism, a pressing mechanism, and a thread clamping device. The thread take-up and passing mechanism is to guide and transport the suture on the thread reel to the sewing needle, and cooperate with the needle bar mechanism to feed the suture. [0003] Existing sewing machine, head 1 is provided with thread take-up mechanism, see figure 1 and figure 2 As shown, the thread take-up mechanism generally includes: a thread take-up lever 30 and a thread take-up crank 40. The thread take-up lever 30 is provided with a thread passing hole 301 through which sutures can pass. One end of the thread taking-up...

Claims

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Application Information

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IPC IPC(8): D05B49/02
CPCD05B49/02
Inventor 郑吉祝书伟柯祥林
Owner JACK SEWING MASCH CO LTD
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