CN103911774A

CN103911774A - Sewing thread turn sewing method for sewing machine

Info

Publication number: CN103911774A
Application number: CN201310003493.XA
Authority: CN
Inventors: 顾飞龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-06
Filing date: 2013-01-06
Publication date: 2014-07-09

Abstract

The invention relates to a sewing thread turn sewing method for a sewing machine. Upper machine needles are arranged on the sewing machine corresponding to the upper end of a needle plate, and lower shuttle needles are arranged corresponding to the lower end of the needle plate. A coil pushing unit is arranged at the lower end of the needle plate, and the coil push unit acts to push coils formed by needle threads of the upper machine needles off original forming positions in the moving travel of at least one needle before turning and when the upper machine needles are about to rise after moving downwards, so that the lower shuttle needles cannot penetrate the coils formed by the upper machine needles, and the upper machine needle threads and lower shuttle needle threads form a disconnected stitching skipping state; accordingly, a reserved thread section is provided for a next travel and is used for providing the rope of the required length during the turn sewing, a work-piece has turn sown threads, and the variability and the value of sown products are increased.

Description

The sewing method of the thread turnover of Sewing machines

Technical field

The present invention has a kind of sewing method about thread turnover of Sewing machines, refer in particular to a kind of thread turnover method applying on general three cars or overseam car, use utilize bouncing pilotage technology produce can for turnover condition and required line segment, make work package there is the thread of turnover.

Background technology

General three common cars, refer to the existing structure schematic diagram shown in Figure 10～Figure 11, its this three car owners want corresponding needle plate (not shown) upper end to be provided with the pin 32 of getting on the bus, and corresponding needle plate lower end is provided with lower shuttle needle 33, make these three cars in sewing process, its order is got on the bus pin 32 in the time passing cloth and start to rise, the needlework 321 of this pin 32 of getting on the bus can form a coil 322, make this lower shuttle needle 33 drive the coil 322 that its needlework 331 form through the needlework 321 of the pin 32 of getting on the bus and chain, move and complete the inferior link network of colluding with of a pin, on cloth, repeat again above-mentioned sewing link and moved the paragraph of required sewing.

In addition, general overseam sewing machine, refer to the existing perspective view shown in Figure 12～Figure 14, the main corresponding needle plate (not shown) of this overseam sewing machine upper end is provided with the pin 32 of getting on the bus, and corresponding needle plate lower end is provided with the first lower shuttle needle 33A and the second lower shuttle needle 33B, make this overseam sewing machine 3 in sewing process, its order is got on the bus pin 32 in the time passing cloth 4 and start to rise, the needlework 321 of this pin 32 of getting on the bus can form a coil 322, the coil 322 that makes this first lower shuttle needle 33A drive its needlework 331A to form through the needlework 321 of the pin 32 of getting on the bus, now this pin 32 of getting on the bus continues toward rising, this first lower shuttle needle 33A is in driving needlework 331A to move toward the second lower shuttle needle 33B position through the rear continuation of coil 322, after the first lower shuttle needle 33A is near the second lower shuttle needle 33B, the needlework 331B of this second lower shuttle needle 33B can collude with forming overseam in cloth limit with the needlework 331A of the first lower shuttle needle 33A, now this pin 32 of getting on the bus can be moved down by peak again, the first lower shuttle needle 33A and the second lower shuttle needle 33B return to location after the meeting, move and complete the inferior link network of colluding with of a pin.

The Sewing machines of above-mentioned two types is sewed on and is all adopted above-mentioned operating process at linear vehicle, but because being now tending towards variability demand for tailor's design and requirement, as will be left the decorative thread of link in design on fabric surface, so that there is multiple sewing technology, as multiple repeatedly seam, the technical variations such as turnover, and with turnover, because the design of Sewing machines is all successional link sewing, as shown in figure 15, mostly adopt one section of straight line of sewing after cutting off suture according to above-mentioned known Sewing machines engineering method, moving cloth turns on suture end overlapping B place and again starts and proceed sewing again again, repeat to cut off according to number of times and the angle of transferring again, the step of overlapping sewing, so, it is not attractive in appearance that institute's sewing turnover pattern out has all multi-thread tail C, while is more consuming time and waste thread also.

Therefore, inventor adheres to the abundant of these relevant industries for many years and designs and develops and actual fabrication experience, keep on improving to be studied again improvement for above disappearance, a kind of sewing method of thread turnover of Sewing machines is provided, to reaching the object of the more perfect exquisiteness of overseam product and increase value.

Summary of the invention

Main purpose of the present invention is the sewing method of the thread turnover that a kind of Sewing machines is provided, it can apply to the thread turnover method on general three cars or overseam car, use utilize bouncing pilotage technology produce can for turnover condition and required line segment, allow sewing work package surface can sewing go out to have the thread of turnover, reach and can sewing go out to have the smooth-going object of appearance with being rich in variational turnover sewing decorative thread attractive in appearance.

Main purpose and effect of the sewing method of the thread turnover of Sewing machines of the present invention, reached by following concrete technological means:

It is mainly provided with corresponding to needle plate upper end the pin of getting on the bus in Sewing machines, and corresponding needle plate lower end is provided with lower shuttle needle, it is characterized in that needle plate lower end is provided with coil push unit, make in the movement travel of at least one pin before turnover time, move down rear wish in the course of action rising in the pin of getting on the bus, make the coil passing that this coil push unit start forms the needlework of the pin of getting on the bus open its former formation position, the coil that lower shuttle needle can not formed by the pin of getting on the bus passes, and makes car needlework and lower shuttle needle line form the bouncing pilotage state not chaining; By this, make to there is reserved line segment in next stroke, to utilize this reserved line segment to supply sewing when turnover, condition that cloth can turn to and required line length are provided, reach turnover sewing more smooth and easy and smooth, and implement the object that reaches the more perfect exquisiteness of sewn product and increase value in its entirety.

The preferred embodiment of the sewing method of the thread turnover of Sewing machines of the present invention described above, wherein, this coil push unit is blowing device.

Accompanying drawing explanation

Fig. 1 is three car embodiment perspective view of the present invention;

Fig. 2 is sewing bouncing pilotage action plane schematic diagram of the present invention;

Fig. 3 is the mobile schematic diagram of doing on pin of getting on the bus after bouncing pilotage of the present invention action;

Fig. 4 is the rear reserved line segment schematic diagram forming of bouncing pilotage action of the present invention;

Fig. 5 is three car tools turnover of the present invention sewing state cloth back side suture schematic diagram;

Fig. 6 is overseam sewing machine embodiment perspective view of the present invention;

Fig. 7 is sewing bouncing pilotage action plane schematic diagram of the present invention;

Fig. 8 is sewing bouncing pilotage action schematic perspective view of the present invention;

Fig. 9 is overseam tool turnover of the present invention sewing state cloth back side suture schematic diagram;

Figure 10 is existing one perspective view (three cars);

Figure 11 is existing one sewing action schematic diagram (three cars);

Figure 12 is existing two perspective view (overseam sewing machine);

Figure 13 is existing two sewing action schematic diagram (overseam sewing machine);

Figure 14 is existing two sewing action schematic perspective view (overseam sewing machine);

Figure 15 is existing overseam tool turnover sewing state cloth back side suture schematic diagram.

[main element symbol description]

< > of the present invention

The 11 pin 111 car needlework of getting on the bus

112 coil 12 lower shuttle needle groups

121 shuttle needlework 13 first lower shuttle needles

131 shuttle needlework 14 second lower shuttle needles

15 coil push unit 2 clothes

A reserves line segment

The existing > of <

32 pin 321 needlework of getting on the bus

322 coil 33 lower shuttle needles

331 needlework 33A the first lower shuttle needles

331A needlework 33B the second lower shuttle needle

331B needlework B overlaps

C line tail

The specific embodiment

For technology contents, goal of the invention that the present invention is used and effect of reaching thereof have more complete and clearly disclose, hereby under elaborate, and see also disclosed accompanying drawing and figure number:

First, refer to the perspective view of the present invention shown in Fig. 1, the present invention is mainly provided with corresponding to needle plate upper end the pin 11 of getting on the bus in Sewing machines, and corresponding needle plate lower end is provided with lower shuttle needle group 12, and (it can be variant according to the Sewing machines of different functions, as the lower shuttle needle of three cars or overseam sewing machine is counted difference), separately be provided with coil push unit 15 in needle plate (not shown) lower end, this coil push unit 15 can be the blowing device that driven by electric control gear.

The present invention can be applicable on various Sewing machiness, but each Sewing machines has a little otherness, but it does not all depart from through car pin through cloth and form coil, pass through and the technology that chains for lower shuttle needle group 12, in this using three cars and overseam sewing machine as operation operation instruction, as follows:

First take three cars as example, see also shown in Fig. 1～Fig. 2, its sewing action is haply as sewing process of the prior art, if but need to there be turnover in this sewing path, turn to sewing, with so form pattern or need be with cutting out while turning to, in its at least one pin time movement travel before turnover action, allow the pin 11 of getting on the bus be passed down through the rear formation coil 112 of cloth 2, and want in the course of action rising, using coil 112 that 15 starts of coil push unit form the car needlework 111 of the pin 11 of getting on the bus passes and opens its former formation position, while making lower shuttle needle group 12 drive shuttle needlework 121 to move, the coil 112 forming due to the car needlework 111 of the pin 11 of getting on the bus is subject to 15 starts of coil push unit to pass out its former formation position, this lower shuttle needle group 12 can not passed by the coil 112 of this pin 11 of getting on the bus, make it form bouncing pilotage state, the car needlework 111 of pin 11 and at least one pin of the shuttle needlework 121 of lower shuttle needle group 12 before the turnover time movement travel action of can not knotting even get on the bus, so, when the pin 11 of getting on the bus is when up needle is to top dead-centre, make car needlework 111 independent and there is reserved line segment A, and make the operating personnel can be in the time pressing pressure foot on cloth 2 and lift, after cloth 2 being turned to while utilizing this reserved line segment A to supply sewing turnover, continue again sewing person (as Fig. 3～Fig. 4), and can sewing as shown in Figure 5, there is the decorative thread that forms turnover in work package surface.

In addition, take overseam sewing machine as example, refer to shown in Fig. 6～Fig. 8, its overseam sewing machine is because wanting overseam side cloth 2, so that the design of its lower shuttle needle group includes first, the second lower shuttle needle 13, 14, its overseam sewing machine is approximately identical to aforementioned existing overseam sewing action on operation is used, its main difference place makes coil push unit 15, the link network place that colludes with forming at the car needlework 111 of the pin 11 of getting on the bus and the shuttle needlework 131 of the first lower shuttle needle 13 of overseam sewing machine controls, transfer in overseam sewing machine wish, turn at least one pin time movement travel before sewing, after moving down, wants by the pin 11 of getting on the bus in the course of action rising, make coil 112 passing that these coil push unit 15 starts form the car needlework 111 of the pin 11 of getting on the bus open its former formation position, while making the first lower shuttle needle 13 drive shuttle needlework 131 to move toward the second lower shuttle needle 14, the coil 112 forming due to the car needlework 111 of the pin 11 of getting on the bus is subject to 15 starts of coil push unit to pass out its former formation position, this first lower shuttle needle 13 can not passed by the coil 112 of this pin 11 of getting on the bus, make it form bouncing pilotage state, the action of neither can knotting in time movement travel of the shuttle needlework 131 of pin 11 car needlework 111 and the first lower shuttle needle 13 this at least one pin before parking even get on the bus, make when the pin 11 of getting on the bus is when up needle is to top dead-centre, make car needlework 111 independent and there is reserved line segment A, and make the operating personnel can be in the time pressing pressure foot on cloth 2 and lift, while utilizing this reserved line segment A to supply sewing turnover, condition that cloth 2 can turn to is provided and has enough line lengths to do go to action, and can sewing as shown in Figure 9, directly transfer and continue again the sewing of next section of decorative thread in ending place of work package overseam, trimming and leave line tail in advance, make design on fabric surface tool continuity decorative thread.

But aforesaid embodiment or accompanying drawing are not to limit product structure of the present invention or occupation mode, in any affiliated technical field, there is suitable variation or the modification of conventionally knowing that the knowledgeable does, all should be considered as not departing from protection scope of the present invention.

Via the above, the composition of structure of the present invention is known with use implementation, and in comparison, the present invention has the following advantages for the present invention and existing structure:

The present invention its be mainly provided with a coil push unit in needle plate lower end, make in the movement travel of at least one pin before turnover time, move down rear wish in the course of action rising in the pin of getting on the bus, make the coil passing that this coil push unit start forms the needlework of the pin of getting on the bus open its former formation position, the coil that lower shuttle needle can not formed by the pin of getting on the bus passes, and forms the bouncing pilotage state not chaining; By this, make car needlework, shuttle needlework independent, provide the condition that cloth can turn to do go to action with enough line lengths, reach and can on cloth, provide smooth-going effect with being rich in variational turnover sewing decorative thread attractive in appearance by sewing.

2. when its not start of coil push unit of the present invention, still can possess original three cars or the overseam sewing machine mode of straight line sewing originally.

3. use the present invention in the time that overseam sewing machine is made turnover sewing decorative thread, can not need trimming and leave line tail in each turning point in advance as known method, can directly transfer and continue again the sewing of next section of decorative thread in ending place of work package overseam, reach design on fabric surface tool continuity decorative thread, and there is the effect of saving man-hour.

Claims

1. the sewing method of the thread of Sewing machines turnover, it is mainly provided with corresponding to needle plate upper end the pin of getting on the bus in Sewing machines, and corresponding needle plate lower end is provided with lower shuttle needle group, it is characterized in that: needle plate lower end is provided with coil push unit, in a pin time movement travel before sewing machine process wish turnover sewing, move down rear wish in the course of action rising in the pin of getting on the bus, make the coil passing that this coil push unit start forms the needlework of the pin of getting on the bus open its former formation position, the needlework that lower shuttle needle group is driven can not passed by this needle thread loop of getting on the bus, form bouncing pilotage state, the action of can not knotting in a pin time movement travel of the needlework that cause get on the bus pin and lower shuttle needle group before turnover sewing.

2. the sewing method of the thread of Sewing machines as claimed in claim 1 turnover, is characterized in that, this coil push unit is blowing device.

3. the sewing method of the thread of Sewing machines as claimed in claim 1 turnover, is characterized in that, it applies to sewing machine.

4. the sewing method of the thread of Sewing machines as claimed in claim 1 turnover, is characterized in that, it applies to overseam sewing machine Sewing machines.

5. the sewing method of the thread of Sewing machines as claimed in claim 4 turnover, is characterized in that, this lower shuttle needle group includes the first lower shuttle needle and the second lower shuttle needle.