CN102535057B - Shearing device for embroidery machine - Google Patents
Shearing device for embroidery machine Download PDFInfo
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- CN102535057B CN102535057B CN201210016265.1A CN201210016265A CN102535057B CN 102535057 B CN102535057 B CN 102535057B CN 201210016265 A CN201210016265 A CN 201210016265A CN 102535057 B CN102535057 B CN 102535057B
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- movable blade
- shift fork
- trimming
- knife
- embroidery machine
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Abstract
The invention relates to a shearing device for an embroidery machine, which comprises a lower shaft horizontally arranged on the embroidery machine frame, a shearing cam and a scissor mechanism which are arranged on the lower shaft, and a scissor driving mechanism matched with the shearing cam, wherein the scissor mechanism comprises a rotating base which is arranged on the frame and can rotate around the center, a cambered movable knife which is fixedly arranged on the rotating base and can rotate around the center of circle along with the rotating base, and a fixed knife which is fixed on the frame and can be matched with the cambered movable knife; a thread hooking corner and a thread separating corner which extend in the rotating direction of the movable knife are formed at the front end of the movable knife; a shearing knife edge is formed between the thread hooking corner and the thread separating corner; and the scissor driving mechanism is used for driving the rotating base to rotate, so that the movable knife can rotate between the stand-by station and the shearing position. The invention can shear thick threads, and the cross section of the thread is flat and is not fluffy.
Description
Technical field
The present invention relates to a kind of shearing device for embroidery machine.
Background technology
What embroidery machine tradition trimming adopted is a kind of cutter that is similar to fish tail, and dead knife and movable blade are normally closed types.After tail hook is assigned to the line on eedle when movable blade goes out cutter, while returning cutter, by front hook, the line on cloth is imported to the edge of a knife, movable blade and dead knife closure are cut short.Because fabric is multi-layer thick material or leather fabric, embroidery line is thick, requires the tension force of line large, in the time of separated time, hook line, often occurs hooking less than line or by line hook mao, causes trimming unstable, and the product quality of embroidering out is declined, and percent defective increases, and production efficiency reduces.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide the one can cutting thick line and the smooth nonlinting shearing device for embroidery machine of upper thread section.
Object of the present invention realizes by following technical solution:
A kind of shearing device for embroidery machine, comprise that transverse horizontal is arranged in the lower shaft on embroidering machine frame, be arranged at the trimming cam on lower shaft, it is characterized in that: also comprise shear mechanism, and the shear driving mechanism matching with trimming cam, described shear mechanism comprise can around center rotating be arranged at the rotating seat in frame, be fixedly installed on rotating seat and the circular arc movable blade that can rotate around its center of circle with rotating seat, and be fixed on the dead knife that can match with circular arc movable blade in frame, described movable blade front end is formed with the hook line angle and point line angle that extend along movable blade direction of rotation, and be formed with the trimming edge of a knife between hook line angle and point line angle, described shear driving mechanism is used for driving rotating seat rotation so that movable blade is rotated between position of readiness and trimming position, when movable blade is in position of readiness, the movable blade edge of a knife separates with the dead knife edge of a knife, when movable blade is in trimming position, the movable blade edge of a knife and dead knife edge of a knife closure are carried out trimming.
Further, described shear driving mechanism, comprise supporting base, the drive rod that can swing around fixing point, can be arranged in the cross bar being flexibly connected on supporting base and with drive rod transverse shifting, be articulated in the connecting rod between drive rod and rotary body, the guide post of lateral arrangement on supporting base, be fixedly installed on cross bar and be formed with the shift fork power transmission shaft of the gathering sill matching with guide post, can be arranged in the shift fork fulcrum post on supporting base up and downly, can be arranged at rotationally the shift fork on shift fork fulcrum post around shift fork fulcrum post, be arranged at the electromagnet that on supporting base, shift fork fulcrum post moves up, and be arranged at the spring moving down for shift fork fulcrum post between supporting base and shift fork fulcrum post, described shift fork one end is provided with the drive pin that can match with trimming cam locus groove, the other end is formed with and the movable driver slot coordinating of shift fork power transmission shaft.
Further, described cross bar one end is provided with axle bumper and rubber blanket.
Further, described drive rod is formed with the elongated hole extending along its length, and described crossbar end is provided with cutter driving piece, is provided with the movable latch coordinating of elongated hole with drive rod on cutter driving piece.
Further, the described trimming edge of a knife is roughly the V-shaped groove extending along movable blade direction of rotation, and V-shaped groove afterbody is provided with trimming sword.
Further, point line angle one side of described movable blade is formed with roughly and divides wire casing along the V-arrangement of movable blade direction of rotation extension.
Further, the present invention also comprises the embroidery machine wire-clamping device that is applicable to thick line, comprise tension seat, be arranged on tension seat and the clamp screw rod connecting vertically, be arranged at the nut of clamp screw rod upper end, be movably set in two thread tension discs on clamp screw rod, be movably set in the thread tension disc pressing plate on clamp screw rod, be compressed in the spring between thread tension disc pressing plate and nut, be movably set in the thimble being connected in clamp screw rod and with thread tension disc pressing plate, loose ends motor, and be arranged at outer peripheral face on loose ends motor output shaft and take turns with the thimble that nail pin contact, described clamp screw rod epimere is formed with along its axially extended thimble slot to make way, thimble is connected with thread tension disc pressing plate by thimble slot to make way.
Further, described thimble wheel is cam or eccentric wheel.
The present invention has following beneficial effect:
What dead knife of the present invention and movable blade adopted is open in usual, and point line angle and hook line angle, in same direction, import the edge of a knife by upper thread in separated time, separated time, hook line stabilization, and trimming is stable, can be used for cutting thick line, and upper thread section is smooth phozy; Shear driving mechanism solenoid actuated shift fork fulcrum post in the time of work rises the drive pin of shift fork is combined with trimming cam locus groove, drive shift fork swings, shift fork swings the rotation that is converted into rotating seat by shift fork power transmission shaft, cross bar and connecting rod, the final movable blade rotation trimming that drives, has that transmission is accurate, reliable, trimming miss ratio is low, be maintained as the advantages such as local; Cross bar one end is provided with axle bumper and rubber blanket, and axle bumper can play spacing effect, and rubber blanket can play cushioning effect, reduces the wearing and tearing between parts, improves service life; The trimming edge of a knife and a point wire casing are V-arrangement, can be used for guiding upper thread, prevent upper thread skew and trimming error, improve trimming success rate; Wire-clamping device provided by the invention selects the spring that elastic force is larger so that thick line reaches the desired tensile force of embroidery, and in trimming step, carry out loose ends, thereby do not affect the normal work of trimming, in the time of needs trimming, computer sends trimming instruction, and loose ends machine operation is rotated thimble wheel, and thimble wheel rotates and drives the thimble jack-up thread tension disc pressing plate of contact with it, thereby make two thread tension discs discharge thick line, play the object of loose ends.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is structure chart of the present invention.
Fig. 2 is johning knot composition of the present invention.
Fig. 3 is the structure chart of movable blade of the present invention.
Fig. 4 is the structural representation of wire-clamping device provided by the invention.
Fig. 5 is the johning knot composition of wire-clamping device provided by the invention.
The specific embodiment
Shown in Fig. 1, Fig. 2 and Fig. 3, a kind of shearing device for embroidery machine, comprises that transverse horizontal is arranged in lower shaft 3 on embroidering machine frame 1, is arranged at trimming cam 4, the shear mechanism on lower shaft 3 and the shear driving mechanism matching with trimming cam 4.
Shear mechanism, comprise the movable tool rest 511 that is arranged in frame 1, can around center rotating be arranged at rotating seat 51 on movable tool rest 511, be fixedly installed on rotating seat 51 and can be fixed on the dead knife 53 that can match with circular arc movable blade 52 in frame 1 around the circular arc movable blade 52 of its center of circle rotation and by fixing tool rest 531 with rotating seat 51.Movable blade 52 front ends are formed with hook line angle 522 and point line angle 521 extending along movable blade 52 direction of rotation and are formed with the trimming edge of a knife 524 between hook line angle 522 and point line angles 521, the trimming edge of a knife 524 is roughly the V-shaped groove extending along movable blade 52 direction of rotation, V-shaped groove afterbody is provided with trimming sword 523, and point line angle 521 1 sides of movable blade 52 are formed with the V-arrangement roughly extending along movable blade 52 direction of rotation and divide wire casing 525.
Shear driving mechanism, comprise supporting base 2, can swingingly be arranged at the drive rod 66 driving on pole socket 661 around fixing point by pivotal pin, can be arranged in the cross bar 62 being flexibly connected on supporting base 2 and with drive rod 66 transverse shifting, two ends are articulated in the connecting rod 67 between drive rod 66 and rotary body 51 by pivotal pin, the guide post 64 of lateral arrangement on supporting base 2, be fixedly installed on cross bar 62 and be formed with the shift fork power transmission shaft 63 of the gathering sill 631 matching with guide post 64, can be arranged in the shift fork fulcrum post 69 on supporting base 2 up and downly, can be arranged at rotationally the shift fork 61 on shift fork fulcrum post 69 around shift fork fulcrum post 69, be arranged at the base plate 683 of supporting base 2 bottoms, be arranged at the electromagnet 681 that on base plate 683, shift fork fulcrum post 69 moves up, and be arranged at the spring 682 moving down for shift fork fulcrum post 69 between supporting base 2 and shift fork fulcrum post 69, shift fork 61 one end are provided with the drive pin 612 that can match with trimming cam 4 track grooves, the other end is formed with and the movable driver slot 611 coordinating of shift fork power transmission shaft 63, cross bar 62 one end are provided with axle bumper 71, and rubber blanket 72, drive rod 66 is formed with the elongated hole extending along its length, cross bar 62 ends are provided with cutter driving piece 65, on cutter driving piece 65, be provided with the movable latch 651 coordinating of elongated hole with drive rod 66.
Shown in Fig. 4 and Fig. 5, be applicable to the embroidery machine wire-clamping device of thick line, comprise tabular tension seat 8, be arranged at tension seat 8 upper and lower parts cross line component 81, be arranged at clamp turn-knob assembly 9 and upper thread detection components 82 on tension seat 8.
Clamp turn-knob assembly 9, comprise and be arranged on tension seat 8 and the clamp screw rod 93 connecting vertically, be arranged at the nut 98 of clamp screw rod 93 upper ends, be movably set in two thread tension discs 95 on clamp screw rod 93, be movably set in the thread tension disc pressing plate 96 on clamp screw rod 93, be compressed in the tower spring 97 between thread tension disc pressing plate 96 and nut 98, be movably set in the thimble 94 being connected in clamp screw rod 93 and with thread tension disc pressing plate 96, be arranged at the loose ends motor 91 on embroidering machine head by motor cabinet 911, and the thimble that is arranged at 94 times end in contact of outer peripheral face and nail pin on loose ends motor 91 output shafts takes turns 92, clamp screw rod 93 epimeres are formed with along its axially extended thimble slot to make way 931, thimble 94 is connected with thread tension disc pressing plate 96 by thimble slot to make way 931, thimble wheel 92 is cam or eccentric wheel.
Specific works mode is: in the time that embroidery machine has been embroidered a pattern implementation trimming operation, computer sends trimming instruction, 91 work of loose ends motor are rotated thimble wheel 92, thimble wheel 92 rotates and drives the thimble 94 jack-up thread tension disc pressing plates 96 of contact with it, thereby make two thread tension discs 95 discharge thick line, complete the loose ends before trimming, electromagnet 681 is switched on, upwards jack-up shift fork fulcrum post 69, drive pin 612 is entered in the track groove of trimming cam 4, trimming cam 4 rotates, ordering about shift fork 61 swings to the right, shift fork 61 swings and makes shift fork power transmission shaft 63 along guide post 64 transverse shiftings, thereby drive cross bar 62 to be moved to the left, drive rod 66 is swung left as fulcrum to be fixed on the pivotal pin that drives on pole socket 661, and drivening rod 67 swings left, drive rotating seat 51 certain angle that turns clockwise, drive movable blade 52 to rotate in trimming position, movable blade 52 is cut off line with dead knife 53 closures, in the time that cross bar 62 is moved to the left, rubber blanket 72, axle bumper 71 plays a part buffering and spacing, in the time that trimming cam 4 is rotated further, order about shift fork 61 and swing left, finally make movable blade 52 separate with dead knife 53, return to original position, electromagnet 681 power-off, spring 682 presses down reset by bounce-back by shift fork fulcrum post 69, drive pin 612 resets, and trimming is complete.
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (9)
1. a shearing device for embroidery machine, comprise that transverse horizontal is arranged in the lower shaft on embroidering machine frame, be arranged at the trimming cam on lower shaft, it is characterized in that: also comprise shear mechanism, and the shear driving mechanism matching with trimming cam, described shear mechanism comprise can around center rotating be arranged at the rotating seat in frame, be fixedly installed on rotating seat and the circular arc movable blade that can rotate around its center of circle with rotating seat, and be fixed on the dead knife that can match with circular arc movable blade in frame, described movable blade front end is formed with the hook line angle and point line angle that extend along movable blade direction of rotation, and be formed with the trimming edge of a knife between hook line angle and point line angle, described shear driving mechanism is used for driving rotating seat rotation so that movable blade is rotated between position of readiness and trimming position, when movable blade is in position of readiness, the movable blade edge of a knife separates with the dead knife edge of a knife, when movable blade is in trimming position, the movable blade edge of a knife and dead knife edge of a knife closure are carried out trimming, what dead knife and movable blade adopted is open in usual, divide line angle and hook line angle in same direction.
2. a kind of shearing device for embroidery machine according to claim 1, it is characterized in that: described shear driving mechanism, comprise supporting base, the drive rod that can swing around fixing point, can be arranged in the cross bar being flexibly connected on supporting base and with drive rod transverse shifting, be articulated in the connecting rod between drive rod and rotary body, the guide post of lateral arrangement on supporting base, be fixedly installed on cross bar and be formed with the shift fork power transmission shaft of the gathering sill matching with guide post, can be arranged in the shift fork fulcrum post on supporting base up and downly, can be arranged at rotationally the shift fork on shift fork fulcrum post around shift fork fulcrum post, be arranged at the electromagnet that on supporting base, shift fork fulcrum post moves up, and be arranged at the spring moving down for shift fork fulcrum post between supporting base and shift fork fulcrum post, described shift fork one end is provided with the drive pin that can match with trimming cam locus groove, the other end is formed with and the movable driver slot coordinating of shift fork power transmission shaft.
3. a kind of shearing device for embroidery machine according to claim 2, is characterized in that: described cross bar one end is provided with axle bumper and rubber blanket.
4. a kind of shearing device for embroidery machine according to claim 2, it is characterized in that: described drive rod is formed with the elongated hole extending along its length, described crossbar end is provided with cutter driving piece, is provided with the movable latch coordinating of elongated hole with drive rod on cutter driving piece.
5. according to arbitrary described a kind of shearing device for embroidery machine in claim 1 to 4, it is characterized in that: the described trimming edge of a knife is roughly the V-shaped groove extending along movable blade direction of rotation, and V-shaped groove afterbody is provided with trimming sword.
6. according to arbitrary described a kind of shearing device for embroidery machine in claim 1 to 4, it is characterized in that: point line angle one side of described movable blade is formed with the V-arrangement roughly extending along movable blade direction of rotation and divides wire casing.
7. a kind of shearing device for embroidery machine according to claim 5, is characterized in that: point line angle one side of described movable blade is formed with the V-arrangement roughly extending along movable blade direction of rotation and divides wire casing.
8. according to arbitrary described a kind of shearing device for embroidery machine in claim 1 to 4, it is characterized in that: also comprise the embroidery machine wire-clamping device that is applicable to thick line, comprise tension seat, be arranged on tension seat and the clamp screw rod connecting vertically, be arranged at the nut of clamp screw rod upper end, be movably set in two thread tension discs on clamp screw rod, be movably set in the thread tension disc pressing plate on clamp screw rod, be compressed in the spring between thread tension disc pressing plate and nut, be movably set in the thimble being connected in clamp screw rod and with thread tension disc pressing plate, loose ends motor, and be arranged at outer peripheral face on loose ends motor output shaft and take turns with the thimble that nail pin contact, described clamp screw rod epimere is formed with along its axially extended thimble slot to make way, thimble is connected with thread tension disc pressing plate by thimble slot to make way.
9. a kind of shearing device for embroidery machine according to claim 8, is characterized in that: described thimble wheel is cam or eccentric wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016265.1A CN102535057B (en) | 2012-01-19 | 2012-01-19 | Shearing device for embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016265.1A CN102535057B (en) | 2012-01-19 | 2012-01-19 | Shearing device for embroidery machine |
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| Publication Number | Publication Date |
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| CN102535057A CN102535057A (en) | 2012-07-04 |
| CN102535057B true CN102535057B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210016265.1A Active CN102535057B (en) | 2012-01-19 | 2012-01-19 | Shearing device for embroidery machine |
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| CN (1) | CN102535057B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747556B (en) * | 2012-08-10 | 2013-12-11 | 石狮市永信电脑设备制造有限公司 | Arc trimming process for embroidering thick line of embroidering machine |
| CN106567205A (en) * | 2015-10-08 | 2017-04-19 | 诸暨市乐业机电有限公司 | Transmission mechanism of thread trimming box |
| CN106988039A (en) * | 2016-01-20 | 2017-07-28 | 天津宝盈电脑机械有限公司 | New type of cam thread cutting mechanism |
| CN107326561B (en) * | 2017-08-28 | 2022-12-27 | 江西禾丰电子机械有限公司 | Thread-buckling device of embroidery machine |
| CN113235231B (en) * | 2019-10-12 | 2022-09-20 | 杰克科技股份有限公司 | Thread trimming and presser foot lifting mechanism and overedger |
| CN111793913B (en) * | 2020-08-07 | 2023-07-21 | 江西禾丰电子机械有限公司 | Scissors device |
| CN113322594B (en) * | 2021-06-25 | 2022-05-06 | 汝州玛雅机电科技有限公司 | Chain mesh towel embroidery thread cutting mechanism and thread cutting and loosening method thereof |
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| US5755170A (en) * | 1995-09-13 | 1998-05-26 | Tokai Kogyo Mishin Kabushiki Kaisha | Thread cutting device in a sewing machine |
| CN2568681Y (en) * | 2002-08-12 | 2003-08-27 | 方明华 | Vertical thread cutter of cup seaming machine |
| CN2602039Y (en) * | 2003-01-20 | 2004-02-04 | 石狮市永信电脑设备制造有限公司 | Novel thread trimming mechanism of computer embroidery machine |
| CN2612685Y (en) * | 2002-08-04 | 2004-04-21 | 青岛电脑刺绣机总厂 | Novel thread trimmer for multiheaded computerized embroidery machine |
| CN201891021U (en) * | 2010-12-02 | 2011-07-06 | 浙江越隆缝制设备有限公司 | Towel embroidery thread-breaking detection device |
| CN202466174U (en) * | 2012-01-19 | 2012-10-03 | 石狮市永信电脑设备制造有限公司 | Shearing device for embroidery machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2961319B2 (en) * | 1989-10-30 | 1999-10-12 | 株式会社バルダン | Embroidery sewing machine thread cutting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120418A (en) * | 1994-07-29 | 1996-04-17 | 东海工业缝纫机株式会社 | Thread cutting device in sewing machine |
| US5755170A (en) * | 1995-09-13 | 1998-05-26 | Tokai Kogyo Mishin Kabushiki Kaisha | Thread cutting device in a sewing machine |
| CN2258880Y (en) * | 1996-04-26 | 1997-08-06 | 李农村 | Thread cutter transmission for embroidery machine |
| CN2612685Y (en) * | 2002-08-04 | 2004-04-21 | 青岛电脑刺绣机总厂 | Novel thread trimmer for multiheaded computerized embroidery machine |
| CN2568681Y (en) * | 2002-08-12 | 2003-08-27 | 方明华 | Vertical thread cutter of cup seaming machine |
| CN2602039Y (en) * | 2003-01-20 | 2004-02-04 | 石狮市永信电脑设备制造有限公司 | Novel thread trimming mechanism of computer embroidery machine |
| CN201891021U (en) * | 2010-12-02 | 2011-07-06 | 浙江越隆缝制设备有限公司 | Towel embroidery thread-breaking detection device |
| CN202466174U (en) * | 2012-01-19 | 2012-10-03 | 石狮市永信电脑设备制造有限公司 | Shearing device for embroidery machine |
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| CN102535057A (en) | 2012-07-04 |
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Owner name: FUJIAN YONGXIN CNC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YONGXIN COMPUTER EQUIPMENT MANUFACTURING CO.,LTD.,SHISHI |
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Address after: 362700, Shishi City, Fujian province Quanzhou Stone Lake port science and Technology Industrial Park Patentee after: FUJIAN YONGXIN NUMERICAL CONTROL TECHNOLOGY CO., LTD. Address before: 362700, Shishi City, Fujian province Quanzhou Stone Lake port science and Technology Industrial Park Patentee before: Yongxin Computer Equipment Manufacturing Co.,Ltd.,Shishi |
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Denomination of invention: Shearing device for embroidery machine Effective date of registration: 20150818 Granted publication date: 20140625 Pledgee: Industrial Bank Limited by Share Ltd Shishi subbranch Pledgor: FUJIAN YONGXIN NUMERICAL CONTROL TECHNOLOGY CO., LTD. Registration number: 2015350000062 |
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