CN201151805Y

CN201151805Y - Three-needle three-chain type sewing machine thread-hooking structure

Info

Publication number: CN201151805Y
Application number: CN 200720306713
Authority: CN
Inventors: 邱卫明; 阮永斌; 叶丽娟
Original assignee: Zhejiang New Jack Sewing Machine Co Ltd
Current assignee: Jack Sewing Machine Co Ltd
Priority date: 2007-12-02
Filing date: 2007-12-02
Publication date: 2008-11-19
Anticipated expiration: 2017-12-02

Abstract

The utility model relates to a novel thread-hooking structure of a three-needle three-chain sewing machine, which belongs to the technical field of sewing machines. The thread-hooking structure is designed to resolve the problem that the traditional sewing machine cannot meet the requirement on stitches with different specifications. The thread-hooking structure comprises a needle rod (1), a needle clamp (2), needles (3), a presser foot (4), a needle plate (5), a feed dog (6), a left curved needle bracket (7), a middle curved needle bracket (8), a right curved needle bracket (9), a curved needle shaft (10), a left curved needle (11), a middle curved needle (12) and a right curved needle (13). The thread-hooking structure is characterized in that the left curved needle (11), the middle curved needle (12) and the right curved needle (13) are designed and respectively correspondingly fixed on the left curved needle bracket (7), the middle curved needle bracket (8) and the right curved needle bracket (9) and then on the curved needle shaft (10). During operation, the needle rod (1) linearly moves downwards along with the needles (3) after being firmly connected with the needle clamp (2), and after passing through needle plate holes corresponding to the needle plate (5), the left curved needle (11), the middle curved needle (12) and the right curved needle (13) hook upper threads to form thread loops with chain type stitches.

Description

A kind of three pins, three chain type Sewing machiness collude line structure

Technical field:

The utility model belongs to sewing machine technique, particularly to the improvement of colluding line structure of three pins, three chain type Sewing machiness.

Background technology:

Traditional chain seam machine is the Sewing machines that adopts the shank take-up, forms single chain-type stitch, and under present market demand guiding, 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 the line structure that colludes of a kind of novel three pins, three chain type Sewing machiness of design.

The utility model comprises shank 1, pin folder 2, eedle 3, presser feet 4, needle plate 5, feed dog 6, left looper frame 7, middle looper frame 8, right looper frame 9, curved needle shaft 10, left looper 11, middle looper 12, right looper 13, it is characterized in that on the basis of common chain seam machine, left looper 11, middle looper 12, right looper 13 have been designed, and they are separately fixed on corresponding left looper frame 7, middle looper frame 8, the right looper frame 9, more left looper frame 7, middle looper frame 8, right looper frame 9 are fixed on the curved needle shaft 10; 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 11, middle looper 12, right looper 13 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 11,

looper

12 and 1 piece of right looper 13 in 1 piece, 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 side looper 11, middle looper 12, right looper 13, and they are separately fixed on corresponding left looper frame 7, middle looper frame 8, the right looper frame 9, more left looper frame 7, middle looper frame 8, right looper frame 9 are fixed on the curved needle shaft 10; 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 11, middle looper 12, right looper 13 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, a kind of line structure that colludes of three pins, three chain type Sewing machiness comprises shank (1), pin folder (2), eedle (3), presser feet (4), needle plate (5), feed dog (6), left side looper frame (7), middle looper frame (8), right looper frame (9), curved needle shaft (10), left side looper (11), middle looper (12), right looper (13), it is characterized in that this device has designed left looper (11), middle looper (12), right looper (13), and they are separately fixed at corresponding left looper frame (7), middle looper frame (8), on the right looper frame (9), again left looper frame (7), middle looper frame (8), right looper frame (9) is fixed on the curved needle shaft (10).

2, a kind of three pins, three chain type Sewing machiness according to claim 1 collude line structure, it 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 (11), middle looper (12) and right looper (13) 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.