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a sewing machine

A sewing machine and sewing technology, applied to sewing machine components, sewing machine control devices, sewing equipment, etc., can solve the problems of falling off, affecting the aesthetic feeling, and the stitch distance cannot be adjusted.

Active Publication Date: 2020-01-31
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, when trimming the thread of the lockstitch sewing machine, because the stitch length cannot be adjusted, the bottom thread end of a stitch length cannot form self-locking, and there are two thread ends, one long and one short, in the trimming of the sewing material, and the two thread ends are aligned. Long and short, one front and one back, resulting in the thread ends left after thread trimming are not firm, and will fall off with a slight pull, affecting the sewing effect
In addition, the thread is too long, which affects the aesthetic feeling

Method used

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Experimental program
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specific Embodiment approach

[0050] First, if the manual is attached figure 2 to attach Figure 7 As shown, the stop rod 5 is similar to a herringbone shape with low ends and high middle, the low point of the left end of the stop rod 5 is provided with a tie rod hinge hole 53, and the pull rod hinge hole 53 is hinged with the tight seam pull rod 14 through the left pin shaft 16, Realize the rotation of the stop rod 5 relative to the tight seam pull rod 14; the middle high point position of the stop rod 5 is provided with a fixed shaft hinge hole 52, and the fixed shaft hinge hole 52 is hinged with the fixed shaft 3 at a fixed position through the middle pin shaft to realize the limit. The rotation of the positioning rod 5 relative to the fixed shaft 3; the right end of the limiting rod 5 has an insertion end 51, and the insertion end 51 is in the shape of an upper half arc for insertion between the connection part 4 and the buffer part 6 from above .

[0051] In order to realize the fixed position of t...

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Abstract

The invention discloses a sewing machine. The sewing machine comprises a backstitch driving part and a backstitch executing mechanism connected with the backstitch driving part and used for realizing the backstitch sewing, and further comprises a tiny stitch executing mechanism connected with a tiny stitch driving part, elastically installed between the backstitch driving part and the backstitch executing mechanism and used for limiting the driving distance of the backstitch driving part. The sewing machine is capable of realizing the tiny stitch function by inserting and embedding the tiny stitch driving part between the backstitch driving part and the backstitch executing mechanism.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine. Background technique [0002] As we all know, when trimming the thread of the lockstitch sewing machine, since the stitch length cannot be adjusted, the bottom thread end of a stitch length cannot form self-locking, and there are two thread ends, one long and one short, in the trimming of the sewing material, and the two thread ends are aligned. Long and short, one front and one back, the thread ends left after thread trimming are not firm, and will fall off with a slight pull, affecting the sewing effect. In addition, the end of the thread is too long, which affects the aesthetic feeling. [0003] Specifically, in order to realize the close seam operation, the close seam electromagnet is usually energized, and then drives the corresponding components to realize the movement of the swing seat to a very small needle pitch, thereby completing the close se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B69/20D05B69/14
CPCD05B69/14D05B69/20
Inventor 柯祥林祝书伟郑吉何明金
Owner JACK SEWING MASCH CO LTD
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