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Empty ring sewing up method and empty ring sewing up device of sewing machine

A sewing machine and circular sewing technology, which is applied to the control device for sewing machine, the mechanism for cutting thread in the sewing machine, the components of the sewing machine, etc., can solve problems such as poor sewing, and achieve the effect of improving workability and simplifying structure.

Active Publication Date: 2013-10-30
YAMATO SEWING MASCH MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the needle 15 moves up and down with the start of the next sewing, the needle thread 17 generates tension that sometimes pulls the part 12a of the empty loop 12 moved to the right side of the needle drop 14 back to the needle drop. 14 side, in this state, once the machine needle 15 descends, the machine needle 15 will pass through the empty loop part 12a in the pulled back state to form a stitch, thus as Figure 13 As shown, the empty ring portion 12a is not sewn into the seam 19 of the sewing material 18, but remains protrudingly in the shape of a ball on the front edge 18e of the sewing start end of the sewing material 18, resulting in poor sewing.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Empty ring sewing up method and empty ring sewing up device of sewing machine
  • Empty ring sewing up method and empty ring sewing up device of sewing machine
  • Empty ring sewing up method and empty ring sewing up device of sewing machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] Embodiments of the present invention will be described below with reference to the drawings.

[0032] figure 1 It is an overall schematic perspective view of a double-needle overlock sewing machine with an empty loop sewing device of the present invention, figure 2 with image 3 It is a perspective view showing the structure of the main part of the hollow ring sewing device. In addition, in the hollow ring sewing device of the present invention, for Figure 11 ~ Figure 13 Components commonly used in the conventional hollow-ring sewing devices shown are denoted by the same symbols, and descriptions thereof are omitted or simplified.

[0033] figure 1 Among them, symbol 1 is the cloth feeding plate of the overlock sewing machine M, and the needle drop portion 14 and the stitch forming claw portion 13a are fixed on the predetermined position of the cloth feeding plate 1 (refer to figure 2 ) of the needle plate 13, a cloth end cutting knife 2 ( figure 1 , figur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

A miss loop sewing-in method and miss loop sewing-in device for a sewing machine, makes that a miss loop end absorbed into the suction pipe of a miss loop disconnecting means to cut performs blow-return movement between the cloth terminal cut-off knife through needles for sewing machine. Under the action of the auxiliary air flow sprayed out from the rear lateral position to the inclined front side relative to the blow-return movement track of the miss loop, the miss loop end of the blow-return movement moves to a miss loop holding device side provided at the near side of a needle location section to be held by the miss loop holding device, therefore the invention not only can simplify the structure without impeding the operations and resulting in visual impairment, but also can reliably and successfully sew the miss loop into the stitch of a sewing start end of a next sewing material.

Description

technical field [0001] The present invention relates to a method for sewing an empty loop (Japanese: empty loop) in a sewing machine suitable for sewing cuffs and armpit side seams of knitted T-shirts, outerwear, underwear, etc., and side seams of leggings and shorts, etc. Empty loop sewing device, in particular, it relates to an empty loop formed by a stitch forming claw connected to a needle plate at the end of sewing of a sewing material, and is guided to be sewn into the sewing material as the sewing of the next sewing material starts The invention relates to an empty loop sewing method and an empty loop sewing device for a sewing machine which prevents thread slippage at the sewing start end in stitches at the sewing start end, that is, by performing back stitching. Background technique [0002] As this kind of empty ring sewing device, in the past, for example, the structure described in Japanese Patent No. 3567274 is known, and a kind of empty ring that can freely rec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B21/00D05B65/06D05B87/00D05B27/00
CPCD05B1/20D05B35/10D05B37/04D05B69/30
Inventor 草积要
Owner YAMATO SEWING MASCH MFG CO LTD
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