CN200978340Y

CN200978340Y - Thread take-off device for three-needle sewing machine

Info

Publication number: CN200978340Y
Application number: CN 200620130783
Authority: CN
Inventors: 邱卫明; 阮永斌; 叶丽娟
Original assignee: ZHEJIANG XINJIEKE SEWING MACHINE CO Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2006-08-01
Filing date: 2006-08-01
Publication date: 2007-11-21
Anticipated expiration: 2016-08-01

Abstract

A racking arrangement of three-needle chain frame belongs to sewing machine technology, particularly to a novel racking arrangement of three-needle chain frame. The utility model is aimed to solve the problem of traditional frame not satisfying different size of stitch, comprising a needle bar 1, a needle holder 2, a needle 3, a presser 4, a faller 5, a feed dog 6, a left looper frame 7, a looper shaft 8, a middle and right looper frame 9, a left looper 10, a middle and right looper 11. The script arrangement is characterized in that the left looper 10 and the middle and right looper 11 are devised and fixed on the respective left looper frame 7 and the middle and right looper frame 9, and then fixed on the looper shaft 8, while operating, the needle bar 1 and the needle holder 2 are connected and moved straight downward with the needle 3, top thread is driven to move downward, cross the faller hole of the faller 5, and hooked by the left looper 10 and the middle and right looper 11 to form loop of chain stitch.

Description

Three pin chains stitch the line apparatus that colludes of machine

Technical field:

The utility model belongs to sewing machine technique, particularly the improvement that chain seam machine is colluded line apparatus.

Background technology:

Traditional chain seam machine is the Sewing machines that adopts the shank take-up, forms single chain trace mark, and traditional chain seam machine can not satisfy the stitching requirement of different size, and can not carry out the needle gage adjusting of different size.

The utility model content:

The purpose of this utility model is that a kind of novel chain seam machine of design colludes line apparatus.

The utility model comprises shank 1, pin folder 2, eedle 3, presser feet 4, needle plate 5, feed dog 6, left looper frame 7, curved needle shaft 8, middle right looper frame 9, left looper 10, middle right looper 11, it is characterized in that on the basis of common chain seam machine, left looper 10, middle right looper 11 have been designed, and they are separately fixed on corresponding left looper frame 7, the middle right looper frame 9, more left looper frame 7, middle right looper frame 9 are fixed on the curved needle shaft 8; During work, shank 1 presss from both sides 2 with pin fixedlys connected the back with eedle 3 downward rectilinear motions, driving upper thread simultaneously moves downward, after passing needle plate 5 pairing needle plate holes, left side looper 10, middle right looper 11 catch on upper thread, form the wire loop of chain-type stitch, and presser feet 4 is pushed down cloth simultaneously, feed dog 6 is to the motion of previous crops work feed, and a needle gage simultaneously travels forward behind chain-type stitch of assurance formation.

The utility model is owing to adopted three pieces of

eedles

3,1 piece of left looper 10, right looper 11 in 2 pieces, and utilized looper to collude the formed chain-type stitch of principle of line, reach the purpose of sewing, so this structural principle is simple, profile is succinct, part processing is easy, and the stitching of formation is attractive in appearance, has satisfied the demand of different stitchings.

Description of drawings:

Fig. 1, Fig. 2 are the stereogram of the utility model diverse location, and Fig. 3 is the utility model front view, and Fig. 4 is the utility model left view.

The specific embodiment:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, left looper 10, middle right looper 11, and they are separately fixed on corresponding left looper frame 7, the middle right looper frame 9, more left looper frame 7, middle right looper frame 9 are fixed on the curved needle shaft 8; And simultaneously, three pieces of eedles 3 are contained in respectively on three eedle holes of pin folder 2; During work, shank 1 presss from both sides 2 with pin fixedlys connected the back with eedle 3 downward rectilinear motions, driving upper thread simultaneously moves downward, after passing needle plate 5 pairing needle plate holes, left side looper 10, middle right looper 11 catch on upper thread, form the wire loop of chain-type stitch, and presser feet 4 is pushed down cloth simultaneously, feed dog 6 is to the motion of previous crops work feed, and a needle gage simultaneously travels forward behind chain-type stitch of assurance formation.

Claims

1, three pin chains seams machine collude line apparatus comprise shank (1), pin folder (2), eedle (3), presser feet (4), needle plate (5), feed dog (6), left looper frame (7), curved needle shaft (8), in, right looper frame (9), left looper (10), middle right looper (11).It is characterized in that this device has designed left looper (10), middle right looper (11), and they are separately fixed on corresponding left looper frame (7), the middle right looper frame (9), more left looper frame (7), middle right looper frame (9) are fixed on the curved needle shaft (8);

2, device according to claim 1 is characterized in that three pieces of eedles (3) of this device are contained in respectively on three eedle holes of pin folder (2); During work, shank (1) and pin folder (2) is fixedlyed connected the same eedle in back (3) rectilinear motion downwards, driving upper thread simultaneously moves downward, after passing the pairing needle plate of needle plate (5) hole, left side looper (10), middle right looper (11) catch on upper thread, form the wire loop of chain-type stitch, and presser feet (4) is pushed down cloth simultaneously, feed dog (6) is to the motion of previous crops work feed, and a needle gage simultaneously travels forward behind chain-type stitch of assurance formation.