CN103510292A - Sewing machine with automatic electromagnetic cutting device - Google Patents
Sewing machine with automatic electromagnetic cutting device Download PDFInfo
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- CN103510292A CN103510292A CN201210224104.1A CN201210224104A CN103510292A CN 103510292 A CN103510292 A CN 103510292A CN 201210224104 A CN201210224104 A CN 201210224104A CN 103510292 A CN103510292 A CN 103510292A
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Abstract
Provided is a sewing machine with an automatic electromagnetic cutting device. The sewing machine with the automatic electromagnetic cutting device comprises a main actuator portion and an electromagnetic pushing device, wherein the main actuator portion is provided with an upper thread cutting knife and a lower thread cutting knife, the electromagnetic pushing device is provided with an electromagnetic portion, a driving rod and a connecting portion, the driving rod is repelled by the electromagnetic portion to carry out a thread cutting stroke, the connecting portion is connected with the upper thread cutting knife and is in linkage with the driving rod, and the electromagnetic pushing device is in linkage with the upper thread cutting knife to cut off a thread end. The electromagnetic pushing device is driven by electric power, and except the sewing machine, a gas compression device which occupies the space and causes additional cost does not need to be additionally arranged. Due to the fact that the electromagnetic pushing device comprises a plurality of telescopic shaft rods which are connected with the connecting portion, the degree of stress of the connecting portion is balanced, stability of the connecting portion is improved, and the phenomenon that the thread end cannot be cut due to the fact that the upper thread cutting knife and the lower thread cutting knife are staggered is avoided.
Description
Technical field
The present invention relates to a kind of Sewing machines, relate in particular to a kind of Sewing machines with electromagnetism automatic cutting means.
Background technology
Two cloth the use in sewing machine of stitching use are in two cloth side edge are sewed up, therefore this pair of cloth the Sewing machines (being designated hereinafter simply as " Sewing machines ") that stitches use have a sewing tool group and sew up two blocks of clothes, this sewing tool group has comprised cloth conveying teeth, cloth conveying teeth platform, a plurality of knitting needle and cotton thread and other necessary interlinked mechanisms, because this sewing tool group is existing structure, therefore it is constructed with action and do not repeat them here in detail.
In this sewing tool group, start to sew up after two blocks of clothes, the gauze that two cloth edges are made into by a plurality of knitting needles engages, yet cloth rear and front end after amalgamation all can leave long the end of a thread, needs by operator with tool scissors except the end of a thread in the past.But along with making rapid progress of sewing machine technique progress, have on the market now the Sewing machines that utilizes mechanically cutting the end of a thread, modal framework is to drive the end of direction to set up the pneumatic cylinder of a tool air pressure operating bar at this cloth, the interlock slide block that cannot adjust locking is established in this air pressure operating bar below, and this interlock slide block below is installed with affixed a holder for upper tangential knife, and make this air pressure operating bar promote holder by gas intake and exhaust, make tangential knife on this can carry out the work of cutting off sewing the end of a thread.Yet; this existing described pneumatic cylinder; its air pressure operating bar there is no design tightening structure because of it; therefore pneumatic cylinder is after long-time use; this interlock slide block often can rock because wearing and tearing or long-term unbalance stress produce the gapped holder that makes while sliding; cannot cutting car suture head to can make to be fixed on the upper tangential knife of this holder and the dislocation of lower tangential knife, now must upgrade pneumatic cylinder is just continued operation, so reality does not meet practical operation demand and working efficiency.
In order to address the above problem, applicant previously then disclosed No. 201009155 just like TaiWan, China patent, a kind of automatic cutting means of and seam sewing machine is provided, and described Sewing machines is provided with automatic cutting means cloth conveying teeth platform in main work between motivation portion and sewing platform machine portion.Automatic cutting means includes an electric eye, a photo-emission part detecting when the cloth shading for electric eye, and can control the pneumatic cylinder pushing structure that drives or stop by mat control circuit when electric eye detects cloth turnover, the electric eye that wherein photo-emission part is positioned on maintenance cover plate can detection place.And pneumatic cylinder pushing structure is installed with an air pressure operating bar, the external holder in air pressure operating bar below, be installed with two movable clamp holders parallel with air pressure operating bar, are provided with interlock slide block in movable clamp holder content, interlock slide block is also affixed with this holder, and on holder, is fixed with tangential knife.So, the most suitable reflection position that provides electric eye to detect cloth, and the movable clamp holder of mat and promote service life of pneumatic cylinder pushing structure.
Yet, though the automatic cutting structure energy automatic cutting tangent line head of above-mentioned Sewing machines, and effectively promote service life of pneumatic cylinder pushing structure, but still belong to, utilize air pressure to promote tangential knife on this, if user needs to use this type of Sewing machines first must provide an Ignitable gas devices for oneself, to provide a drive of high-pressure gas this pneumatic cylinder, and this Ignitable gas devices is generally a compressor.Yet be not that the user of all Sewing machiness all possesses and has unnecessary space so that a compressor to be set, and buying more with maintaining of compressor also increased cost, if therefore can provide one to there is the non-automatic cutting means that utilizes pneumatic cylinder to drive, for not possessing the user who buys more Ignitable gas devices ability, not less than being a large Gospel.
Summary of the invention
Main purpose of the present invention, is to solve existing pneumatic cylinder pushing structure and must be equipped with an Ignitable gas devices, and have take up space, expensive problem.
For reaching above-mentioned purpose, the invention provides a kind of Sewing machines with electromagnetism automatic cutting means, in order to two blocks of clothes of amalgamation sewing, include a main motivation portion that does, be located at this main sewing platform of doing motivation subordinate side, an and Electromagnetic Control structure, this is main does motivation portion and includes a rag knife group that cuts this two cloth when sewing starts, the sewing machine group of one this two cloth of sewing amalgamation, and one start to cut when finishing the tangential knife group of the end of a thread respectively at sewing, this tangential knife group includes on one tangential knife and tangential knife once.This sewing platform includes this two cloth of a propelling movement to this rag knife Zu work feed district, and one is located at the tangent line district that this rear end, work feed district arranges for this lower tangential knife.This Electromagnetic Control structure includes a sensing element, and one and this sensing element electromagnetism thrust unit of being electrically connected and being subject to this sensing element to control, this sensing element has one and when this two cloth enters this work feed district, exports one of this electromagnetism thrust unit to and enter cloth signal, this electromagnetism thrust unit includes a reception, and this enters cloth signal and produces the electromagnetism portion of one first magnetic, one has second magnetic relative with this first magnetic magnetic and is subject to this first magnetic repulsion to carry out the drive rod of all lineal travels, and one be connected with tangential knife on this and be arranged in this drive rod and be subject to the connecting portion of this drive rod interlock.
Further, this sensing element includes to be located at this and mainly to make the perception part that motivation portion normality is launched an induced signal, and one be located at the work feed district of this sewing platform and reflect this induced signal be a reflected signal to the reflecting part of this perception part, this two cloth enters this work feed district and interdicts this reflected signal and make this perception part export this and enter cloth signal.
Further, this perception part has one and leaves this reflecting part completely when this two cloth, and this perception part is again obtained this reflected signal and exported one of this electromagnetism thrust unit to and go out cloth signal.
Further, this perception part is an Infrared emitting and receiving device.
Further, this main motivation portion that does includes an assembling sheet, this assembling sheet includes the first assembled portion of this perception part of an installing, the second assembled portion of this electromagnetism thrust unit of installing, and a turning point of being located between this first assembled portion and this second assembled portion.
Further, this connecting portion includes the holder of this drive rod of connection, and one is installed in the tangent line tool rest that connects tangential knife on this on this holder.
Further, this electromagnetism thrust unit includes one and is installed with and is fixedly arranged on this main housing of doing motivation portion for this electromagnetism portion, and the flexible axostylus axostyle of this housing of a plurality of connection and this connecting portion.
Further, this electromagnetism thrust unit also includes and is located in this electromagnetism portion and the flexible member being connected with this drive rod.
Beneficial effect of the present invention is:
1. the present invention utilizes an electromagnetism thrust unit to drive tangential knife upper and lower displacement on this, and then cuts off unnecessary sewing the end of a thread.This electromagnetism thrust unit comes from driven by power, does not need the extra Ignitable gas devices that takes up space and additionally increase cost that arranges again.
2. this electromagnetism thrust unit of the present invention is except this drive rod, a plurality of flexible axostylus axostyles are separately set to be connected with this holder, thus, just the average stressed degree of this holder, increase the stability of this holder, and can overcome the dislocation of upper tangential knife and lower tangential knife and shortcoming that cannot cutting car suture head.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of Sewing machines of the present invention;
Fig. 2 is the decomposed schematic diagram of Sewing machines of the present invention;
Fig. 3 is the running schematic diagram () of Sewing machines of the present invention;
Fig. 4 is the running schematic diagram (two) of Sewing machines of the present invention;
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram of electromagnetism thrust unit of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in detail:
Relevant detailed description of the present invention and technology contents, now just coordinate accompanying drawing to be described as follows:
Refer to shown in Fig. 1, Fig. 2 and Fig. 5, the invention provides a kind of Sewing machines with electromagnetism automatic cutting means, in order to two blocks of clothes 4 of amalgamation sewing, include a main motivation portion 1 that does, be located at this main sewing platform 2 of doing motivation portion 1 below, and an Electromagnetic Control structure 3.This is main does motivation portion 1 and includes a rag knife group 11 that cuts this two cloth 4 when sewing starts, the sewing machine group 12 of one this two cloth 4 of sewing amalgamation, and one start to cut when finishing the tangential knife group 13 of the end of a thread 41 (being separately shown in Fig. 4) respectively at sewing, this tangential knife group 13 includes on one tangential knife 131 and tangential knife 132 once.This sewing platform 2 includes this two cloth 4 of a propelling movement to this rag knife Zu11 work feed district 21, and one is located at the tangent line district 22 that these 21 rear ends, work feed district arrange for this lower tangential knife 132.This Electromagnetic Control structure 3 includes a sensing element 31, and one and this sensing element 31 electromagnetism thrust unit 32 of being electrically connected and being subject to this sensing element 31 to control, this sensing element 31 has one and when this two cloth 4 enters this work feed district 21, exports one of this electromagnetism thrust unit 32 to and enter cloth signal, this electromagnetism thrust unit 32 includes a reception, and this enters cloth signal and produces the electromagnetism portion 321 of one first magnetic, one has second magnetic relative with this first magnetic magnetic and is subject to this first magnetic repulsion to carry out the drive rod 322 of all lineal travels, and one be connected with tangential knife on this 131 and be arranged in this drive rod 322 and be subject to the connecting portion 323 of these drive rod 322 interlocks.Wherein this connecting portion 323 includes the holder 324 of this drive rod 322 of a connection, and one be installed in the tangent line tool rest 325 that connects tangential knife 131 on this on this holder 324, between this holder 324 and this tangent line tool rest 325, can by adjusting screw, adjust the relative position of this holder 324 and this tangent line tool rest 325, therefore this part technology is prior art, at this, not repeat.
Refer to Fig. 1, Fig. 3 and Fig. 4, when this two cloth 4 is sent into this sewing machine group 12 in the lump, this rag knife group 11 is cut useless cloth 42 parts at these two clothes, 4 edges by these sewing machine group 12 interlocks.Meanwhile, a plurality of knitting needles of this sewing machine group 12 can be woven together this two cloth 4 according to the weaving manner of its design.Because sewing machine group 12 can respectively leave one section of the end of a thread 41 in these two clothes, 4 rear and front ends in braiding process, therefore Sewing machines of the present invention has also been installed a waste material collection device 5.This waste material collection device 5 has one and is positioned at this rag knife group 11 side and the first air-breathing air intake ducts 51 of normality, and one be positioned at the second other air intake duct 52 of this tangential knife group 13, this first air intake duct 51 is drawn the useless cloth 42 of this rag knife group 11 under this two cloth 4 cuts, and this second air intake duct 52 is drawn this end of a thread 41.In specific embodiment of the invention sample, this main motivation portion 1 that does has the assembling sheet 14 of being located at these sewing platform 2 tops, this assembling sheet 14 includes one first assembled portion 141, one the second assembled portion 142 for these electromagnetism thrust unit 32 installings, an and turning point 143 of being located between this first assembled portion 141 and this second assembled portion 142, this first assembled portion 141 is center line with this second assembled portion 142Yi Gai turning point 143, is located at respectively this sewing platform 2 both sides.This sensing element 31 includes to be located at this and mainly to make the perception part 311 that motivation portion 1 normality is launched an induced signal, and one work feed district 21 these induced signals of reflection of being located at this sewing platform 2 be that a reflected signal is to the reflecting part 312 of this perception part 311, wherein this perception part 311 is fixed on this main motivation portion 1 that does by this first assembled portion 141 and is positioned at this sewing platform 2 tops, this reflecting part 312 preferably position is arranged on a movable maintenance cover plate 211 of raising of these work feed district 21 1 sides, wherein preferably to implement aspect be an Infrared emitting and receiving device to this perception part 311, but with this, do not limit the present invention.
After this two cloth 4 is subject to this rag knife group 11 to cut except useless cloth 42, by this work feed district 21, stop that this reflecting part 312 interdicts this reflected signal, now these perception part 311 these reflected signals of judgement disappear and export this and enter cloth signal to this electromagnetism thrust unit 32 (represent cloth 4 sent in sewing machine group 12); Another when this two cloth 4 leaves this reflecting part 312 completely, this perception part 311 is again obtained this reflected signal and is exported one and go out cloth signal to this electromagnetism thrust unit 32 (representing that cloth 4 has left sewing machine group 12) and make Sewing machines finish sewing moving.
This electromagnetism thrust unit 32 enters cloth signal according to this and this goes out the sequential of cloth signal deciding action, more particularly, the present invention also has the control box 6 that a telecommunication connects this perception part 311 and this electromagnetism thrust unit 32, this control box 6 has been preset with a delay knitting needle number, when this two cloth 4 enters this work feed district 21 and interdicts this reflected signal, this enters cloth signal to this control box 6 these perception part 311 outputs, this this sewing machine group 12 of control box 6 countings goes out the number of times of pin, and when the number of times that sewing machine group 12 goes out pin reaches this delay knitting needle and counts, export again this and enter cloth signal to this electromagnetism thrust unit 32.When receiving this, enters after cloth signal by this electromagnetism thrust unit 32, drive this electromagnetism portion 321 to produce this first magnetic, and this drive rod 322 is subject to this first magnetic repulsion and carry out this tangent line stroke, so interlock on this tangential knife 131 carry out once the shear action with lower tangential knife 132.
The concrete action showing is as follows, along with those cloth 4 front ends of running of this sewing machine group 12 can be connected with the end of a thread 41 not yet then and first being knit out by knitting needle sewing at those clothes 4, wherein weave the pin number of this unnecessary the end of a thread 41 of those cloth 4 front ends, be this delay knitting needle number.When this electromagnetism thrust unit 32 receives this, enter after cloth signal, can this tangential knife group 13 of interlock cut this end of a thread 41.In like manner, after those cloth 4 pieces, those cloth 4 ends leave the below of tangential knife 131 on this not yet completely, those cloth 4 ends such as need leave on this behind tangential knife 131 belows completely, the action that just can break, therefore can utilize this delay knitting needle number, when those clothes 4 leave this reflecting part 312 completely, this perception part 311 is again obtained this reflected signal and is exported one and goes out cloth signal to this control box 6, this this sewing machine group 12 of control box 6 countings goes out the number of times of pin, and when the number of times that sewing machine group 12 goes out pin reaches this delay knitting needle and counts, export again this and go out cloth signal to this electromagnetism thrust unit 32.When receiving this, this electromagnetism thrust unit 32 goes out after cloth signal, drive this electromagnetism portion 321 to produce this first magnetic, and this drive rod 322 is subject to this first magnetic repulsion and carry out this tangent line stroke, and then interlock on this tangential knife 131 carry out once the shear action with lower tangential knife 132, this end of a thread 41 that those cloth 4 ends are unnecessary is wiped out.
In addition, refer to shown in Fig. 5, in order to make this connecting portion 323 can be stressed uniformly, while making this connecting portion 323 be subject to this drive rod 322 interlock, moved stably, this electromagnetism thrust unit 32 comprises one the housing 326 that is installed with and is fixedly arranged on this second assembled portion 142 for this electromagnetism portion 321, and the flexible axostylus axostyle 327 of this housing 326 of a plurality of connection and this connecting portion 323.In specific embodiment of the invention aspect, this housing 326 is a tetragonal body, this electromagnetism portion 321 is located at this housing 326 central authorities with this drive rod 322, those flexible axostylus axostyles 327 are arranged at four jiaos of this housing 326, so, this connecting portion 323 has one and is positioned at central stress point, and four equalization points, and interlock that can be stable is tangential knife 131 motions on this.In addition, this electromagnetism thrust unit 32 also includes to be located in this electromagnetism portion 321 and the flexible member 328 being connected with this drive rod 322, when this drive rod 322 is subject to the first magnetic repulsion that this electromagnetism portion 321 produces and carries out this tangent line stroke, this flexible member 328 is stretched and is had a restoring force, and on this tangential knife 131 carry out once shear action with lower tangential knife 132 complete after, this drive rod 322 is retracted to position originally.
In sum, because the present invention utilizes an electromagnetism thrust unit, drive tangential knife upper and lower displacement on this, and then cut off unnecessary sewing the end of a thread.This electromagnetism thrust unit comes from driven by power, does not need the extra Ignitable gas devices that takes up space and additionally increase cost that arranges again.And this electromagnetism thrust unit is except this drive rod, a plurality of flexible axostylus axostyles are separately set to be connected with this holder, thus, just the average stressed degree of this holder, increase the stability of this holder, and can overcome the dislocation of upper tangential knife and lower tangential knife and shortcoming that cannot cutting car suture head.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. a Sewing machines with electromagnetism automatic cutting means, in order to two blocks of clothes of amalgamation sewing, is characterized in that, this Sewing machines with electromagnetism automatic cutting means includes:
The one main motivation portion that does, include a rag knife group that cuts this two cloth when sewing starts, the sewing machine group of one this two cloth of sewing amalgamation, and one start to cut when finishing the tangential knife group of the end of a thread respectively at sewing, this tangential knife group includes on one tangential knife and tangential knife once;
One sewing platform, is located at this main motivation subordinate side that does, and includes this two cloth of a propelling movement to this rag knife Zu work feed district, and one is located at the tangent line district that this rear end, work feed district arranges for this lower tangential knife;
One Electromagnetic Control structure, include a sensing element, and one and this sensing element electromagnetism thrust unit of being electrically connected and being subject to this sensing element to control, this sensing element has one and when this two cloth enters this work feed district, exports one of this electromagnetism thrust unit to and enter cloth signal, this electromagnetism thrust unit includes a reception, and this enters cloth signal and produces the electromagnetism portion of one first magnetic, one has second magnetic relative with this first magnetic magnetic and is subject to this first magnetic repulsion to carry out the drive rod of all lineal travels, and one be connected with tangential knife on this and be arranged in this drive rod and be subject to the connecting portion of this drive rod interlock.
2. there is as claimed in claim 1 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this sensing element includes to be located at this and mainly to make the perception part that motivation portion normality is launched an induced signal, and one be located at the work feed district of this sewing platform and reflect this induced signal be a reflected signal to the reflecting part of this perception part, this two cloth enters this work feed district and interdicts this reflected signal and make this perception part export this and enter cloth signal.
3. there is as claimed in claim 2 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this perception part has one and leaves this reflecting part completely when this two cloth, and this perception part is again obtained this reflected signal and exported one of this electromagnetism thrust unit to and go out cloth signal.
4. have as claimed in claim 2 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this perception part is an Infrared emitting and receiving device.
5. there is as claimed in claim 2 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this main motivation portion that does includes an assembling sheet, this assembling sheet includes the first assembled portion of this perception part of an installing, the second assembled portion of one this electromagnetism thrust unit of installing, and a turning point of being located between this first assembled portion and this second assembled portion.
6. have as claimed in claim 1 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this connecting portion includes the holder of this drive rod of connection, and one is installed in the tangent line tool rest that connects tangential knife on this on this holder.
7. there is as claimed in claim 1 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this electromagnetism thrust unit includes one and is installed with and is fixedly arranged on this main housing of doing motivation portion for this electromagnetism portion, and the flexible axostylus axostyle of this housing of a plurality of connection and this connecting portion.
8. have as claimed in claim 1 the Sewing machines of electromagnetism automatic cutting means, it is characterized in that, this electromagnetism thrust unit also includes to be located in this electromagnetism portion and the flexible member being connected with this drive rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224104.1A CN103510292B (en) | 2012-06-28 | 2012-06-28 | Sewing machine with automatic electromagnetic cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224104.1A CN103510292B (en) | 2012-06-28 | 2012-06-28 | Sewing machine with automatic electromagnetic cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103510292A true CN103510292A (en) | 2014-01-15 |
| CN103510292B CN103510292B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210224104.1A Expired - Fee Related CN103510292B (en) | 2012-06-28 | 2012-06-28 | Sewing machine with automatic electromagnetic cutting device |
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| Country | Link |
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| CN (1) | CN103510292B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968061A (en) * | 2017-04-27 | 2017-07-21 | 杰克缝纫机股份有限公司 | A kind of anti-cloth-cutting apparatus and its control method for sewing machine |
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| US5027733A (en) * | 1988-05-17 | 1991-07-02 | Schips Ag Nahautomation | Sewing machine with automatic separation of pieces of sewing material |
| CN2830450Y (en) * | 2005-09-16 | 2006-10-25 | 西安标准工业股份有限公司 | Auto cutting thread control system of cup seaming machine |
| CN1858322A (en) * | 2006-06-08 | 2006-11-08 | 黄昌芦 | Industrial sewing machine head capable of automatically cutting fabric |
| EP1992726A1 (en) * | 2007-05-15 | 2008-11-19 | Dürkopp Adler Aktiengesellschaft | Sewing machine |
| CN201305741Y (en) * | 2008-11-07 | 2009-09-09 | 广州科祺自动化设备有限公司 | Single-needle dual-knife closure sewing machine |
| CN101845722A (en) * | 2009-03-24 | 2010-09-29 | 启翔针车（上海）有限公司 | Automatic thread cutting device of sewing machine |
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2012
- 2012-06-28 CN CN201210224104.1A patent/CN103510292B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027733A (en) * | 1988-05-17 | 1991-07-02 | Schips Ag Nahautomation | Sewing machine with automatic separation of pieces of sewing material |
| CN2830450Y (en) * | 2005-09-16 | 2006-10-25 | 西安标准工业股份有限公司 | Auto cutting thread control system of cup seaming machine |
| CN1858322A (en) * | 2006-06-08 | 2006-11-08 | 黄昌芦 | Industrial sewing machine head capable of automatically cutting fabric |
| EP1992726A1 (en) * | 2007-05-15 | 2008-11-19 | Dürkopp Adler Aktiengesellschaft | Sewing machine |
| CN201305741Y (en) * | 2008-11-07 | 2009-09-09 | 广州科祺自动化设备有限公司 | Single-needle dual-knife closure sewing machine |
| CN101845722A (en) * | 2009-03-24 | 2010-09-29 | 启翔针车（上海）有限公司 | Automatic thread cutting device of sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968061A (en) * | 2017-04-27 | 2017-07-21 | 杰克缝纫机股份有限公司 | A kind of anti-cloth-cutting apparatus and its control method for sewing machine |
| CN106968061B (en) * | 2017-04-27 | 2019-10-01 | 杰克缝纫机股份有限公司 | A kind of anti-cloth-cutting apparatus and its control method for sewing machine |
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| CN103510292B (en) | 2015-06-17 |
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Granted publication date: 20150617 Termination date: 20210628 |