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Sewing machine fabric cutting device

A technology for sewing machines and cloth cutting, which is applied to sewing machine components, sewing equipment, textiles and papermaking, and can solve problems such as time-consuming

Inactive Publication Date: 2006-06-07
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when only forming eyelet buttonholes with different lengths of the straight line portions of the eyelet buttonholes, it is necessary to replace the cutter and the cutter receiver, which is labor-intensive.

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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  • Sewing machine fabric cutting device
  • Sewing machine fabric cutting device
  • Sewing machine fabric cutting device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0071] The cloth cutting device 1 is provided on the body of the eye buttonhole overlock sewing machine 100, which generally consists of a body part 101 on which an article 200 to be sewn is placed on its upper side, and is in a position of standing upward from the body part 101. The foot column part 102 of the state, the arm part 103 extending from this foot column part 102 along the longitudinal direction of the fuselage part on the top of the fuselage part 101 is constituted. The cutter receiver 6 that receives the cutter at the time, the operating mechanism 2 that drives the cutter 5 up and down in order to cut off the sewn article 200, and the control device (control mechanism) not shown in the figure are composed. The operation of the sewing machine of the cloth conveying device (moving mechanism) and the cloth cutting device, which are not shown in the figure, convey the article 200 to be sewn.

[0072] Also, if Figure 7 As shown, in the sewing machine 100 of this exa...

no. 2 example

[0140] The cloth cutting device in this embodiment is the same as the cloth cutting device in the first embodiment except for the sensor mechanism that controls the movement of the cutter. Figure 17 In, due to the use of the same as Figure 1 ~ image 3 and Figure 5 The same symbol, so its description is omitted.

[0141] The sensor mechanism for controlling the movement of the cutter in this embodiment is arranged in the box body 28 and the foot column part 102 of the operating mechanism 2 for moving the cutter 5 up and down.

[0142] Such as Figure 15 and Figure 17 As shown, in the box body 28 , a slit plate 49 is installed, and on the leg portion 102 , a sensor 50 for detecting the origin position 10 is installed. The aforementioned sensor 50 detects whether the cutter 5 is at the original position by detecting, for example, a change between a state covered with the slit plate 49 and a state not covered therewith. Once the motor 21 is driven, the case 28 and the sli...

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 sewing machine fabric cutting device is provided in a sewing machine for forming button holes composed of an eyelet portion and linear portion with a knife for cutting the sewing object to produce button holes, in which the knife is provided with an eyelet knife portion for forming an eyelet portion of an eyelet hole out of button holes that consist of an eyelet portion and a linear portion, and a linear knife portion for forming a linear slit capable of serving as the linear portion of the eyelet hole. Such device is capable of producing eyelet holes of various lengths and linear holes without changing knife and its receiver. A sewing machine fabric cutting device is provided in a sewing machine for forming button holes composed of an eyelet portion and linear portion with a knife for cutting the sewing object to produce button holes, in which the knife is provided with an eyelet knife portion for forming an eyelet portion of an eyelet hole out of button holes that consist of an eyelet portion and a linear portion, and a linear knife portion for forming a linear slit capable of serving as the linear portion of the eyelet hole. An independent claim is also included for a similar device in which the linear knife portion for forming linear holes is separately provided below the eyelet knife portion for eyelet-hole formation, and the sewing object can be selectively reached by moving and lowering the linear knife portion to a first position or to a second position by lowering the eyelet knife portion and linear knife portion from a raised position, optionally with a regulating means to control the movement between the first and second positions, and a means to control movement of the sewing object between the two knife portions at arranged directions for a specified distance, all which are integrated and finally the knife for fabric cutting is lowered to the second position for cutting off the sewing object.

Description

[0001] This application is a divisional application of the invention patent application with the application number "00817093.2", the application date "December 12, 2000", and the invention title "cloth cutting device for sewing machine". technical field [0002] The present invention relates to a cloth cutting device of a sewing machine, which is installed on a sewing machine for overlock (lock seaming) and forms holes as buttonholes in cloth. Background technique [0003] As well known, there is a buttonhole overlock sewing machine which, as a sewing machine, overlocks the portion of the buttonhole formed on cloth (the item to be sewn). This sewing machine is equipped with a cloth cutting device that simultaneously forms buttonholes on the cloth during overlocking, and forms buttonholes (round eye buttonholes) on the inside of the overlocking part before or after overlocking. . [0004] This round eye buttonhole overlock sewing machine is equipped with a needle bar with a...

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 Applications(China)
IPC IPC(8): D05B37/02D05B3/08D05B37/04
CPCD05B3/06D05B3/08D05B37/02D05B37/06
Inventor 村井健二
Owner JUKI CORP
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