CN103352332A - Electronic back-pulling mechanism - Google Patents
Electronic back-pulling mechanism Download PDFInfo
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- CN103352332A CN103352332A CN2013102571120A CN201310257112A CN103352332A CN 103352332 A CN103352332 A CN 103352332A CN 2013102571120 A CN2013102571120 A CN 2013102571120A CN 201310257112 A CN201310257112 A CN 201310257112A CN 103352332 A CN103352332 A CN 103352332A
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- cloth
- compressor arm
- fork
- compression bar
- timing belt
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 25
- 238000007906 compression Methods 0.000 claims description 25
- 238000009958 sewing Methods 0.000 abstract description 13
- 239000004744 fabric Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of sewing machines, in particular to an electronic back-pulling mechanism, and solves the problems that the structure is complex, the sewing feeding is unsmooth, and the production efficiency is low in the prior art. The technical scheme is as follows: the electronic back-pulling mechanism comprises a motor, a first synchronous pulley, a second synchronous pulley, a synchronous belt, a synchronous belt tensioning mechanism, a cloth tug component and a presser foot mechanism, wherein one end part of an oscillating bar adopts a double fork structure; the oscillating bar is connected with the synchronous belt, the other end part of the oscillating bar is hinged to an oscillating bar seat; a connecting rod is hinged between the middle of the oscillating bar and a tug rack; an external voltage-regulating screw component adopts an internal thread voltage-regulating structure; an internal voltage-regulating screw rod is in threaded connection with the external voltage-regulating screw; the lower end of the internal voltage-regulating screw rod is pressed onto the upper end of an internal pressing rod spring; the internal pressing rod spring and the internal pressing rod are glidingly sleeved with an external pressing rod; the outer side of the upper part of the external pressing rod is fixedly connected with an upper-raising guide frame; a connecting ring is arranged above the upper-raising guide frame and outside the external pressing rod; and the cloth tug component is fixedly connected with the lower part of the external pressing rod.
Description
Technical field:
The present invention relates to the sewing machine technique field, be specifically related to a kind of electronics rear dragging mechanism.
Background technology:
The rear dragging mechanism of at present Sewing machines use is generally mechanical rear dragging, finishes a backward sewing process of the dilatory cloth of straight line, needs the work compound of cloth dragging mechanism and presser foot device.Normal cloth dragging mechanism and the presser foot device that uses separates, and cloth dragging mechanism has it to regulate separately the controlling organization of pressure, and cloth dragging mechanism mainly is comprised of cloth-dragging wheel assembly and driven unit two parts; Presser foot device generally includes pressure regulating screw assembly, compressor arm spring, compressor arm and the presser foot component that arranges from top to bottom.The problem that prior art exists is: 1, cloth dragging mechanism and presser foot device are two to overlap independently mechanism, take up room greatly complex structure; 2, owing to being subjected to the restriction of structure, the distance between cloth-dragging wheel and the presser feet can not be dwindled, and when cloth leaves feed dog, does not enter cloth-dragging wheel, not of uniform size the causing of needle gage when needle gage and normal sewing can appear in the stitching of this section; 3, the lifting, put down of cloth-dragging wheel, by manually-operated, production efficiency is low, and 4, cloth-dragging wheel can only forward can not reverse, cause sewing process cloth-dragging wheel and cloth feeding mechanism can only just stitch and can not backstitch simultaneously simultaneously.
(rear dragging mechanism) the cloth-dragging wheel driving mechanism that uses generally includes motor, the first synchronous pulley, Timing Belt, the second synchronous pulley and cloth-dragging wheel assembly, the centre-to-centre spacing of two synchronous pulleys is changeless, and Timing Belt tension force guarantees by the centre-to-centre spacing of two synchronous pulleys.Because cloth-dragging wheel assembly meeting oscilaltion, in order to reach this purpose, the mechanical structure that has at present some to adopt other realizes the oscilaltion of cloth-dragging wheel assembly, but because of complex structure, part processing precision is high, so that manufacturing enterprise's production cost strengthens.
Summary of the invention:
The present invention will provide a kind of electronics rear dragging mechanism, the complex structure that exists to overcome prior art, and the sewing feeding is not smooth, the problem that production efficiency is low.
The problem that exists for overcoming prior art, technical scheme of the present invention is: a kind of electronics rear dragging mechanism, comprise motor, the first synchronous pulley, Timing Belt, the second synchronous pulley, the Timing Belt strainer, cloth-dragging wheel assembly and presser foot device, comprise the tugboat frame on the cloth-dragging wheel assembly, described presser foot device comprises the outer pressure regulation screw assembly that arranges from top to bottom, interior compressor arm spring, interior compressor arm and presser foot component, its special character is: described Timing Belt strainer comprises fork, a pair of needle bearing assembly, connecting rod and swing rod, an end of described fork is two fork structures, be provided with a pair of needle bearing assembly between two fork structure ends, a pair of needle bearing assembly is installed with respectively on Timing Belt, another end of fork is articulated on the swing rod, is hinged with connecting rod between the middle part of fork and the tugboat frame; Described outer pressure regulation screw assembly is the internal thread pressure adjusting structure, and the upper end of internal pressure-regulating screw rod is threaded with it, and the lower end of internal pressure-regulating screw rod is installed with in the upper end of interior compressor arm spring; The outside of described interior compressor arm spring and interior compressor arm slidably is arranged with the external compression bar, be folded with outside external compression bar spring between the lower end of the upper end of compressor arm and outer pressure regulation screw assembly, the upper outside of external compression bar is fixed with lifts saddle, lift saddle below, the arranged outside of external compression bar has connecting ring, prolonging ear on the connecting ring is connected with the motion end of lifting the pressure connecting rod, lift the motion end of pressing connecting rod with on lift saddle the boss setting that matches, correspondence is provided with the longitudinally guiding groove on connecting ring and the external compression bar, be provided with horizontal straight hole on the interior compressor arm, bearing pin by the longitudinally guiding groove and laterally straight hole with interior compressor arm, external compression bar and connecting ring connect as one; Described cloth-dragging wheel assembly is fixed on the bottom of external compression bar.
Three groups of pin-and-holes are arranged on the above-mentioned fork, one of top is one group, be connected with swing rod, as a fixing fulcrum, the below two groups be respectively two pairs of pin-and-holes, the needle bearing assembly is comprised of needle bearing and bearing pin, bearing pin is located in a pair of pin-and-hole, needle bearing rotates at bearing pin, with the tensile force of control Timing Belt and the pendulum angle of Timing Belt.
The present invention has changed the complex structure that prior art exists, and the sewing feeding is not smooth, the problem that production efficiency is low.Compared with prior art, advantage of the present invention is:
1, compact conformation: the Timing Belt strainer is simple in structure, and two suitable tensile forces of needle bearing have guaranteed the normal operation with transmission; Fork has been controlled the pendulum angle of Timing Belt, has realized the action of cloth-dragging wheel oscilaltion; The pressure regulating device of cloth-dragging wheel and presser feet is united two into one, effectively reduced taking of space;
2, simple in structure: realized the carrying out of two groups of actions by inside and outside two sleeve spring compressing structures, simple in structure, maintenance and fabrication is convenient;
3, production cost is low: simplify the structure, part processing precision is low, has reduced production cost;
4, effectively shorten the distance of cloth-dragging wheel and presser feet, solved the sewing thread trace problem that causes not of uniform size of initiating terminal;
5, the lifting, put down of cloth-dragging wheel assembly presses the connecting rod action to finish by lifting, and production efficiency improves.
6, cloth-dragging wheel rotates and can realize the cloth-dragging wheel rotating by Electric Machine Control, has solved the problem that cloth-dragging wheel and cloth feeding mechanism backstitch simultaneously in the sewing process.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A profile of Fig. 1;
Description of reference numerals is as follows: 1-motor, 2-the first synchronous pulley, 3-Timing Belt, 4-fork, 5-needle bearing assembly, 6-the second synchronous pulley, 7-tugboat frame, 8-connecting rod, 9-swing rod, the outer pressure regulation screw assembly of 10-, 11-internal pressure-regulating screw rod, 12-external compression bar spring, 13-are lifted to press and are lifted compressor arm spring in saddle, 15-connecting ring, 16-bearing pin, 17-external compression bar, 18-cloth-dragging wheel assembly, the 19-, the interior compressor arm of 20-, 21-presser foot component on connecting rod, the 14-.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
Referring to Fig. 1 and Fig. 2, a kind of electronics rear dragging mechanism, comprise motor 1, the first synchronous pulley 2, Timing Belt 3, the second synchronous pulley 6, the Timing Belt strainer, cloth-dragging wheel assembly 18 and presser foot device, comprise tugboat frame 7 on the cloth-dragging wheel assembly 18, described presser foot device comprises the outer pressure regulation screw assembly 10 that arranges from top to bottom, interior compressor arm spring 19, interior compressor arm 20 and presser foot component 21, described Timing Belt strainer comprises fork 4, a pair of needle bearing assembly 5, connecting rod 8 and swing rod 9, an end of described fork 4 is two fork structures, be provided with a pair of needle bearing assembly 5 between two fork structure ends, a pair of needle bearing assembly 5 is installed with respectively on Timing Belt 3, another end of fork 4 is articulated on the swing rod 9, is hinged with connecting rod 8 between the middle part of fork 4 and the tugboat frame 7; Described outer pressure regulation screw assembly 10 is the internal thread pressure adjusting structure, and the upper end of internal pressure-regulating screw rod 11 is threaded with it, and the lower end of internal pressure-regulating screw rod 11 is installed with in the upper end of interior compressor arm spring 19; The outside of described interior compressor arm spring 19 and interior compressor arm 20 slidably is arranged with external compression bar 17, be folded with outside external compression bar spring 12 between the lower end of the upper end of compressor arm 17 and outer pressure regulation screw assembly 10, the upper outside of external compression bar 12 is fixed with lifts saddle 14, lift saddle 14 below, the arranged outside of external compression bar 17 has connecting ring 15, prolonging ear on the connecting ring 15 is connected with the motion end of lifting pressure connecting rod 13, lift the motion end of pressing connecting rod 13 with on lift saddle 14 the boss setting that matches, correspondence is provided with the longitudinally guiding groove on connecting ring 15 and the external compression bar 17, be provided with horizontal straight hole on the interior compressor arm 20, bearing pin 16 by the longitudinally guiding groove and laterally straight hole with interior compressor arm 20, external compression bar 17 and connecting ring 15 connect as one; Described cloth-dragging wheel assembly 18 is fixed on the bottom of external compression bar 17; Three groups of pin-and-holes are arranged on the above-mentioned fork 4, one of top is one group, be connected with swing rod 9, as a fixing fulcrum, the below two groups be respectively two pairs of pin-and-holes, needle bearing assembly 5 is comprised of needle bearing and bearing pin, bearing pin is located in a pair of pin-and-hole, needle bearing rotates at bearing pin, with the tensile force of control Timing Belt and the pendulum angle of Timing Belt.
Duty explanation of the present invention:
1. original state: lift the conventional components of pressing in the connecting rod 13(Sewing machines, link to each other with knee control raising rod, realize that presser feet lifts action) swing, push up on its motion end, promotion be mated on lift the boss of saddle 14, on lift saddle 14 and drive the external compression bar 17 that is connected with it and rise, lift press connecting rod 13 drive simultaneously on it connecting ring 15 upwards, this lifting force passes to interior compressor arm 20 by bearing pin 16 and together moves.Along with external compression bar 17 and interior compressor arm 20 rise, presser foot component 21 and cloth-dragging wheel assembly 18 together lift;
2. lift when pressing connecting rod 13 to swing round about, presser foot component 21 and cloth-dragging wheel assembly 18 are depressed, and driven unit drives cloth-dragging wheel and rotates;
3. work beginning, presser feet, feed dog feeding and cloth-dragging wheel mop begin synchronously;
4. work as cloth by presser feet, enter the cloth-dragging wheel below, cloth-dragging wheel produces pulling force forward, realizes the mop function;
7. make finish after cloth-dragging wheel, presser feet lift;
8, begin to rise when cloth-dragging wheel assembly 18, the end that connecting rod 8 links to each other with the tugboat frame rises simultaneously, promote forward connecting rod 8 other ends, driving fork 4 travels forward, needle bearing assembly 5 forwards slides on the inside and outside surface of Timing Belt, the Timing Belt angle diminishes gradually, and the mop wheel carrier moves to topmost, and the cloth-dragging wheel assembly is finished vertical motion.
9, the cloth-dragging wheel assembly begins to descend, connecting rod 8 one ends link to each other with the tugboat frame and descend simultaneously, pull back connecting rod 8 other ends, driving fork 4 moves backward, needle bearing assembly 5 rearward slides on the inside and outside surface of Timing Belt, the Timing Belt angle becomes greatly gradually, and the mop wheel carrier moves to bottom, and the cloth-dragging wheel assembly is finished down maneuver.
10, sewing is finished, and the cloth-dragging wheel assembly begins rising and repeats said process.
Claims (2)
1. electronics rear dragging mechanism, comprise motor (1), the first synchronous pulley (2), Timing Belt (3), the second synchronous pulley (6), the Timing Belt strainer, cloth-dragging wheel assembly (18) and presser foot device, comprise tugboat frame (7) on the cloth-dragging wheel assembly (18), described presser foot device comprises the outer pressure regulation screw assembly (10) that arranges from top to bottom, interior compressor arm spring (19), interior compressor arm (20) and presser foot component (21), its special character is: described Timing Belt strainer comprises fork (4), a pair of needle bearing assembly (5), connecting rod (8) and swing rod (9), an end of described fork (4) is two fork structures, be provided with a pair of needle bearing assembly (5) between two fork structure ends, a pair of needle bearing assembly (5) is installed with respectively on Timing Belt (3), another end of fork (4) is articulated on the swing rod (9), is hinged with connecting rod (8) between the middle part of fork (4) and the tugboat frame (7); Described outer pressure regulation screw assembly (10) is the internal thread pressure adjusting structure, and the upper end of internal pressure-regulating screw rod (11) is threaded with it, and the lower end of internal pressure-regulating screw rod (11) is installed with in the upper end of interior compressor arm spring (19); The outside of described interior compressor arm spring (19) and interior compressor arm (20) slidably is arranged with external compression bar (17), be folded with external compression bar spring (12) between the lower end of the upper end of compressor arm (17) and outer pressure regulation screw assembly (10) outside, the upper outside of external compression bar (12) is fixed with lifts saddle (14), in the below of lifting saddle (14), the arranged outside of external compression bar (17) has connecting ring (15), prolonging ear on the connecting ring (15) is connected with the motion end of lifting pressure connecting rod (13), lift the motion end of pressing connecting rod (13) with on lift saddle (14) the boss setting that matches, the upper correspondence of connecting ring (15) and external compression bar (17) is provided with the longitudinally guiding groove, interior compressor arm is provided with horizontal straight hole on (20), bearing pin (16) by the longitudinally guiding groove and laterally straight hole with interior compressor arm (20), external compression bar (17) and connecting ring (15) connect as one; Described cloth-dragging wheel assembly (18) is fixed on the bottom of external compression bar (17).
2. a kind of electronics rear dragging according to claim 1 mechanism, its special character is: three groups of pin-and-holes are arranged on the above-mentioned fork (4), one of top is one group, be connected with swing rod (9), as a fixing fulcrum, two groups of belows are respectively two pairs of pin-and-holes, needle bearing assembly (5) is comprised of needle bearing and bearing pin, bearing pin is located in a pair of pin-and-hole, and needle bearing rotates at bearing pin, with the tensile force of control Timing Belt and the pendulum angle of Timing Belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257112.0A CN103352332B (en) | 2013-06-26 | 2013-06-26 | Electronic back-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257112.0A CN103352332B (en) | 2013-06-26 | 2013-06-26 | Electronic back-pulling mechanism |
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| Publication Number | Publication Date |
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| CN103352332A true CN103352332A (en) | 2013-10-16 |
| CN103352332B CN103352332B (en) | 2014-09-03 |
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| CN201310257112.0A Active CN103352332B (en) | 2013-06-26 | 2013-06-26 | Electronic back-pulling mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614867A (en) * | 2013-12-02 | 2014-03-05 | 耿安富 | Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism |
| CN103696152A (en) * | 2013-12-11 | 2014-04-02 | 保定泽泰服装机械制造有限公司 | Motor-driven cloth puller |
| CN103981642A (en) * | 2014-05-27 | 2014-08-13 | 泉州市中缝针车城有限责任公司 | Lockstitch sewing machine capable of feeding automatically |
| CN105386244A (en) * | 2015-11-25 | 2016-03-09 | 中山百川汇盈精密实业有限公司 | Synchronous integrated sewing equipment |
| CN107988719A (en) * | 2016-10-26 | 2018-05-04 | 高林股份有限公司 | upper cloth feeding device for sewing decorative strip |
| CN108330614A (en) * | 2017-12-14 | 2018-07-27 | 中国航空工业集团公司上海航空测控技术研究所 | Integral computer tugboat |
| CN109183288A (en) * | 2018-09-29 | 2019-01-11 | 浙江杰克智能缝制科技有限公司 | A kind of cloth-pressing device and sewing machine of sewing machine |
| CN112226918A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Electronic middle presser foot mechanism of sewing machine |
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| CN201588071U (en) * | 2010-01-13 | 2010-09-22 | 麻佰林 | Novel special tacking machine |
| CN101974830A (en) * | 2010-09-08 | 2011-02-16 | 际华三五零二职业装有限公司 | Buttonholing machine for holes of cotton-padded cap |
-
2013
- 2013-06-26 CN CN201310257112.0A patent/CN103352332B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184706Y (en) * | 1994-01-28 | 1994-12-07 | 俞雪荣 | Soundless presser feet of embroidery machine |
| US6123039A (en) * | 1999-12-07 | 2000-09-26 | Yugen Kaisha Niiken Kogyosho | Endless-belt type walking presser foot |
| CN2736388Y (en) * | 2004-09-24 | 2005-10-26 | 方宏机械(宁波)有限公司 | Fixing device for presser foot of lockstitch sewing machine |
| CN200988896Y (en) * | 2006-11-07 | 2007-12-12 | 西安标准工业股份有限公司 | Two-needle machine with automatic cloth cutting function |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614867A (en) * | 2013-12-02 | 2014-03-05 | 耿安富 | Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism |
| CN103696152A (en) * | 2013-12-11 | 2014-04-02 | 保定泽泰服装机械制造有限公司 | Motor-driven cloth puller |
| CN103696152B (en) * | 2013-12-11 | 2016-08-17 | 保定泽泰服装机械制造有限公司 | A kind of Motor-driven cloth puller |
| CN103981642A (en) * | 2014-05-27 | 2014-08-13 | 泉州市中缝针车城有限责任公司 | Lockstitch sewing machine capable of feeding automatically |
| CN105386244A (en) * | 2015-11-25 | 2016-03-09 | 中山百川汇盈精密实业有限公司 | Synchronous integrated sewing equipment |
| CN107988719A (en) * | 2016-10-26 | 2018-05-04 | 高林股份有限公司 | upper cloth feeding device for sewing decorative strip |
| CN108330614A (en) * | 2017-12-14 | 2018-07-27 | 中国航空工业集团公司上海航空测控技术研究所 | Integral computer tugboat |
| CN109183288A (en) * | 2018-09-29 | 2019-01-11 | 浙江杰克智能缝制科技有限公司 | A kind of cloth-pressing device and sewing machine of sewing machine |
| CN109183288B (en) * | 2018-09-29 | 2020-11-03 | 浙江杰克智能缝制科技有限公司 | Cloth pressing device of sewing machine and sewing machine |
| CN112226918A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Electronic middle presser foot mechanism of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352332B (en) | 2014-09-03 |
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