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Buttonholing machine

A sewing machine and buttonhole technology, applied to sewing machine components, program-controlled sewing machines, sewing machine control devices, etc., can solve the problems of troublesome cloth positioning, low production efficiency, and increased man-hours, so as to improve product quality, increase production efficiency, The effect of positioning improvement

Active Publication Date: 2008-12-03
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, in either case, there are problems of increased man-hours, troublesome cloth positioning, and low production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0051] (first embodiment: overall structure)

[0052] exist figure 1 Among them, the buttonhole overlock sewing machine 1 (hereinafter simply referred to as the sewing machine 1) is a sewing machine that forms, for example, Figure 22 A so-called round buttonhole having a straight line portion L and a substantially circular teardrop-shaped portion Q shown in (a), or a buttonhole such as Figure 22 For buttonhole cutouts such as linear buttonholes shown in (b), overlock sewing is performed on the edges of the cutouts.

[0053] This sewing machine 1 has: a sewing machine frame 2; a cloth feeding mechanism 10, which has a feeding table 11 as a mounting table on which a cloth is placed above a base portion 3 of the sewing machine frame 2, and can be positioned in the XY direction (predetermined direction). Convey the cloth placed on the feed table 11; the cloth cutting mechanism 20 has a cutter support portion 27 and a cloth cutter 21 respectively arranged up and down facing each...

no. 2 approach

[0130] Below, according to Figure 13 to Figure 16 , the second embodiment using the present invention will be described in detail. In addition, in the second embodiment and the third embodiment described below, the same reference numerals are assigned to the same configurations as those of the above-mentioned first embodiment, and overlapping descriptions will be omitted.

[0131] The buttonhole overlock sewing machine 101 (hereinafter referred to as the sewing machine 101) according to the second embodiment is different from the above-mentioned first embodiment in that the camera unit 140 as the imaging unit is supported by the cloth cutter 21 and the cutter. The parts 27 are attached to the upper surface of the base part 3 at positions separated from the positions where the cloth cutting is performed in cooperation with each other.

[0132] Specifically, the camera unit 140 according to the present embodiment is arranged in parallel with the looper mechanism 60, and is loc...

no. 3 approach

[0148] Below, according to Figure 17 ~ Figure 19 , the third embodiment using the present invention will be described in detail.

[0149] The buttonhole overlock sewing machine 201 according to the third embodiment is different from the above-mentioned first and second embodiments in that a camera unit 240 serving as an imaging unit is mounted on the feeding table 211 . On the camera unit 240, the camera module 41 and the lighting device 46 respectively connected to the control unit 70 via cables not shown are provided, such as Figure 17 and Figure 18 As shown, they are installed inside the feeding table 211 by fixing bolts respectively. The camera module 41 is arranged so that the lens arranged facing upward is located on the extension line of the line approximately along the Y-axis direction connecting the cloth cutter 21 and the needle drop position of the sewing needle 9, and is positioned relative to the looper mechanism. 60 is located on the side of the operator's ...

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Abstract

The invention provides a Buttonholing machine, for realizing the easy fixing operation of the sewings, which comprises a cloth feeding mechanism for feeding the cloth on the feeding table to the scheduled direction; a cloth cutting mechanism, provided with cut supporting parts arranged relatively up and down separated from the feeding table, a cloth cut and a cloth cutting pulse motor for drivingthe cut supporting part up and down; a needle swing mechanism, causing the needle and the cloth feeding direction processing according to the cloth feeding mechanism to cross and swing; a control part, for controlling the above structures, forming a button hole on the cloth, meanwhile forming the overeasting stitch at the circumference of the button hole; a camera unit, arranged at the lower partof the carrying surface of the feeding table, for shooting the cloth carried on the cloth feeding table from the lower part; and an operating panel, for displaying the cloth image shot by the camera unit. Through determining the cloth pattern displayed on the operating panel and fixing the cloth, easy operation of the cloth fixation is realized.

Description

technical field [0001] The present invention relates to a buttonhole overlock sewing machine with a cloth cutting mechanism for forming buttonholes. Background technique [0002] Conventionally, a buttonhole overlock sewing machine is known that forms a cutout for a buttonhole in a material to be sewn, and performs overlock sewing on the cutout (for example, refer to Patent Document 1). [0003] This buttonhole overlock sewing machine has a material cutting mechanism that uses a pair of material cutting knives and a knife support portion (not shown) arranged vertically across the material, on the material placed on the feed table, Form buttonholes with buttonholes (refer to Figure 22 (a) Cutout for); a cloth feeding mechanism that holds the cloth while feeding the cloth in the XY direction (horizontal direction) along the shape of the buttonhole formed by the aforementioned cloth cutting mechanism; needle A swing mechanism, which makes the sewing needle (not shown) swing i...

Claims

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Application Information

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IPC IPC(8): D05B3/06D05B37/06D05B69/00D05B35/12
CPCD05B3/06D05B19/02
Inventor 村井健二
Owner JUKI CORP
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