CN203049236U

CN203049236U - Device shortening lockstitch sewing machine trimmed thread

Info

Publication number: CN203049236U
Application number: CN 201320026250
Authority: CN
Inventors: 李创; 卢胜龙; 蔡敏华
Original assignee: New Jack Sewing Machine Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2013-01-17
Filing date: 2013-01-17
Publication date: 2013-07-10
Anticipated expiration: 2023-01-17

Abstract

The utility model belongs to the technical field of sewing machines and particularly relates to a device which adjusts a needle distance to be close to zero and shortens a lockstitch sewing machine trimmed thread when the thread is trimmed. The device shortening the lockstitch sewing machine trimmed thread comprises an air cylinder positioning device fixing a feeding regulation base of a feeding mechanism at a certain position and a reverse stitching magnetic control device which is matched with the air cylinder positioning device and controls the needle distance of the feeding mechanism. After sewing is completed, two thread ends left are almost located at the same needle hole and form a similar interlocking shape, so that any thread can not come off easily when being pulled. The thread is sewed solidly and beautifully.

Description

The device that the flat seam machine trimming shortens

Technical field

The utility model belongs to the sewing machine technique field, and needle gage is adjusted to and approaches the device that zero flat seam machine trimming shortens when refering in particular to a kind of trimming.

Background technology

At present, use flat seam machine, direct automatic shearing after the sewing finishing presents two the end of a thread at the material trimming place of making, and two the end of a thread are that one is long and the other is short, one in front and one in back, be separated by one with the preceding the same needle gage of sewing finishing; The material of so making out, the end of a thread that stays behind the trimming is insecure, and pull gently and draw and will come off, the effect that influence is made, and lack aesthetic feeling.

Summary of the invention

It is almost nil that the purpose of this utility model provides after a kind of sewing finishing between two the end of a thread needle gage, and be the device that the flat seam machine trimming that interlocks shape shortens.

The purpose of this utility model is achieved in that the device that the flat seam machine trimming shortens, wherein, comprise that the feeding adjustment seat that makes feed mechanism is fixed on the cylinder positioner of certain position, and cooperate the needle gage of controlling feed mechanism with the cylinder positioner refund the seam magnetic control means.

The device that shortens according to the above flat seam machine trimming, wherein, the concrete structure of described cylinder positioner is, the cylinder body of cylinder is fixedly connected on a side of cylinder mounting plate, the outer end of the piston rod of cylinder is articulated and connected by an end of jockey and positioning lever, and the other end of positioning lever contacts the location with the feeding adjustment seat.

The device that shortens according to the above flat seam machine trimming, wherein, described concrete structure of refunding the seam magnetic control means is, the outer end of the iron core of electromagnet is hinged with an end of the lever of falling the feeding, the other end of the lever of falling the feeding is hinged with the outer end that is fixed on the crank on the regulating shaft of falling the feeding, and work of electromagnet drives the regulating shaft of falling feeding rotation and then cooperates the needle gage of controlling feed mechanism with the cylinder positioner.

The utility model outstanding and beneficial technical effects compared to existing technology is: during sewing finishing, stitch under the magnetic control means acting in conjunction with refunding at the cylinder positioner, feed mechanism stops feeding, needle gage almost is adjusted into zero, and Sewing machines is walked a pin again, and this moment, two the end of a thread almost were in same pin hole, present interlocking state, not only attractive in appearance, and very firm, promote significantly and make effect.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is that prior art is made design sketch;

Fig. 3 is the design sketch of making of the present utility model;

Among the figure: 100-feed mechanism, 110-cylinder body, 120-piston rod, 130-jockey, the 140-positioning lever, 150-cylinder positioner, 160-electromagnet, the 170-iron core, the 180-lever of falling the feeding, 190-crank, 200-refunds the seam magnetic control means, the 210-regulating shaft of falling the feeding, 220-feeding adjustment seat, the 230-cylinder mounting plate, 10-makes material, and 11-improves back the end of a thread a, 12-improves back the end of a thread b, the end of a thread a before 13-improves, the end of a thread b before 14-improves.

The specific embodiment

The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-3: the device that the flat seam machine trimming shortens, wherein, comprise that the feeding adjustment seat 220 that makes feed mechanism 100 is fixed on the cylinder positioner 150 of certain position, and cooperate the refunding of needle gage of controlling feed mechanism 100 to stitch magnetic control means 200 with cylinder positioner 150.

The device that shortens according to the above flat seam machine trimming, wherein, the concrete structure of described cylinder positioner 150 is, the cylinder body 110 of cylinder is fixedly connected on a side of cylinder mounting plate 230, the outer end of the piston rod 120 of cylinder is articulated and connected by the end of jockey 130 with positioning lever 140, and the other end of positioning lever 140 contacts the location with feeding adjustment seat 220.

The device that shortens according to the above flat seam machine trimming, wherein, described concrete structure of refunding seam magnetic control means 200 is, the outer end of the iron core 170 of electromagnet 160 is hinged with an end of the lever of falling the feeding 180, the other end of the lever of falling the feeding 180 is with to be fixed on the outer end of the crank 190 on the regulating shaft of falling the feeding 210 hinged, and electromagnet 160 work drive the regulating shafts of falling the feeding 210 rotations and then cooperate the needle gage of controlling feed mechanism 100 with cylinder positioner 150.

The effect that prior art is made as shown in Figure 3, the end of a thread that stays on make material 10 is the end of a thread b14 for the end of a thread a13 before improving with before improving, both separately tear off easily; And use the utility model technology, during sewing finishing, the piston rod 120 of cylinder shrinks, positioning lever 140 contact the location with feeding adjustment seat 220, at this moment, electromagnet 160 adhesives, electromagnet 160 work drives the regulating shafts of falling the feeding 210 rotations and then cooperates the needle gage of controlling feed mechanism 100 with cylinder positioner 150, at cylinder positioner 150 with refund under the acting in conjunction of seam magnetic control means 200, feed mechanism 100 control feedings, needle gage is adjusted to and approaches zero, and the Sewing machines pin of going further is finished trimming more then; The piston rod 120 of last cylinder is stretched back, and the iron core 170 of electromagnet 160 discharges.Two the end of a thread making on the material 10 form similar interlocking shape for improving back the end of a thread a11 and improving back the end of a thread b12, pull single line arbitrarily all to be not easy to come off, and are very firm, and attractive in appearance.

Above-described embodiment is preferred embodiment of the present utility model only, is not to limit protection domain of the present utility model according to this, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1. the device that shortens of flat seam machine trimming is characterized in that: comprise that the feeding adjustment seat that makes feed mechanism is fixed on the cylinder positioner of certain position, and cooperate the needle gage of controlling feed mechanism with the cylinder positioner refund the seam magnetic control means.

2. the device that shortens of flat seam machine trimming according to claim 1, it is characterized in that: the concrete structure of described cylinder positioner is, the cylinder body of cylinder is fixedly connected on a side of cylinder mounting plate, the outer end of the piston rod of cylinder is articulated and connected by an end of jockey and positioning lever, and the other end of positioning lever contacts the location with the feeding adjustment seat.

3. the device that shortens of flat seam machine trimming according to claim 1, it is characterized in that: described concrete structure of refunding the seam magnetic control means is, the outer end of the iron core of electromagnet is hinged with an end of the lever of falling the feeding, the other end of the lever of falling the feeding is hinged with the outer end that is fixed on the crank on the regulating shaft of falling the feeding, and work of electromagnet drives the regulating shaft of falling feeding rotation and then cooperates the needle gage of controlling feed mechanism with the cylinder positioner.