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Sewing machine

A sewing machine and machine needle technology, applied in the field of sewing machines, to avoid interference and prevent the reduction of detection accuracy

Inactive Publication Date: 2013-12-18
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, obstacles may interfere with the needle before the holding body reaches the absolute origin

Method used

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  • Sewing machine
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Examples

Experimental program
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Effect test

Embodiment Construction

[0048] Hereinafter, a sewing machine 1 according to a first embodiment of the present invention will be described with reference to the drawings. figure 1 The upper side, lower side, left oblique lower side, right oblique upper side, left oblique upper side, and right oblique lower side are the upper side, lower side, front side, rear side, left side, and right side of the sewing machine 1, respectively.

[0049] refer to figure 1 , the overall structure of the sewing machine 1 will be described. The sewing machine 1 includes a base portion 2 , a column portion 3 , and an arm portion 4 . The base part 2 is disposed on the table 95 . The base portion 2 extends in the front-rear direction, and a vertical hook (vertical rotary hook / shuttle hook, not shown) and the like are provided inside. The column portion 3 extends upward from the rear side of the base portion 2 . Column part 3 is provided with sewing machine motor 112 (refer to image 3 )Wait. The arm part 4 extends for...

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PUM

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Abstract

The invention aims to provide a sewing machine, which can reliably prevent a barrier from interfering with a needle based on the barrier disposed on a retainer. The retainer of the sewing machine conducts retaining on a sewing object below a needle rod having a needle. An image sensor of the sewing machine can shoot a regulated area below the needle rod. The sewing machine enables the retainer to feed and move to an absolute original point position or a sewing-starting position. During the feeding and moving process, when the sewing machine enables the retainer to move in a manner that an X-axis motor and a Y-axis motor drive one pulse, the barriers in the shot image of the regulated area can be recognized. The sewing machine determines whether barriers with the range having a regulated distance from the limited area exist. When the barrier enters into the range having a regulated distance from the limited area, the sewing machine changes the moving direction of the retainer to be different.

Description

technical field [0001] The present invention relates to a sewing machine which performs sewing while relatively moving a holding body holding an object to be sewn relative to a needle bar which moves up and down. Background technique [0002] The sewing machine sews patterns according to the sewing data. This sewing machine sews while moving a needle bar to which a needle is attached at a lower end up and down, and moving a holding body holding an object to be sewn horizontally relative to the needle bar. In this sewing machine, the holder is initially moved to the absolute origin along a path based on a predetermined movement rule with the needle at the raised position. This sewing machine starts a sewing operation for forming stitches after further moving the holder from the absolute origin to the sewing start position based on sewing data. [0003] An operator sometimes attaches the auxiliary pressing member to the holder depending on the object to be sewn. Sometimes i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B19/16
Inventor 杉原良英
Owner BROTHER KOGYO KK
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