CN113322594B - Chain mesh towel embroidery thread cutting mechanism and thread cutting and loosening method thereof - Google Patents
Chain mesh towel embroidery thread cutting mechanism and thread cutting and loosening method thereof Download PDFInfo
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- CN113322594B CN113322594B CN202110708921.3A CN202110708921A CN113322594B CN 113322594 B CN113322594 B CN 113322594B CN 202110708921 A CN202110708921 A CN 202110708921A CN 113322594 B CN113322594 B CN 113322594B
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- thread
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- loosening
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- 238000005520 cutting process Methods 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 12
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 230000006698 induction Effects 0.000 claims description 16
- 238000009966 trimming Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 10
- 238000009956 embroidering Methods 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 4
- 235000011613 Pinus brutia Nutrition 0.000 claims 4
- 241000018646 Pinus brutia Species 0.000 claims 4
- 239000012634 fragment Substances 0.000 claims 4
- 239000003086 colorant Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000192308 Agrostis hyemalis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010511 looping mechanism Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/20—Arrangements for cutting the needle or lower threads
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to the technical field of embroidery machines, and discloses a chain mesh towel embroidery thread cutting mechanism and a thread cutting and loosening method thereof, wherein in the thread cutting process, a thread clamping reed can effectively clamp embroidery threads, when the embroidery is started after the thread cutting, a machine head main shaft rotates for 2 to 3 circles, a needle rod moves up and down for 2 to 3 times, a movable knife motor rotates to drive a gear, the gear drives a rack, the rack drives a thread loosening guide plate to extend to the thread clamping reed, the thread loosening is completed and kept still, or the machine head main shaft rotates for a plurality of circles and then returns, so that the front 2 to 3 needles can be conveniently looped, and the embroidery threads can not pull cloth to cause cloth deformation.
Description
Technical Field
The invention relates to the technical field of embroidery machines, in particular to a chain-mesh towel embroidery thread trimming mechanism and a thread trimming and loosening method thereof.
Background
Chinese patent application 200520063598.5 discloses a thread feeding and color changing device for towel embroidery, wherein a looping mechanism is provided with a plurality of loop shuttles, a movable knife and a fixed knife for executing thread cutting, and each loop shuttle is threaded with embroidery threads of different colors. The operation process of the looper mechanism of the existing embroidery machine is as follows: when the embroidery thread changes color or cuts thread, the thread cutting movable knife extends out of the hook thread, the thread cutting movable knife hooks the embroidery thread and pulls back, the thread end is clamped by the elastic clamping piece, and the thread cutting movable knife is cut when reaching the fixed knife position, so that the thread cutting is finished. However, when the movable knife extends to the wire clamping reed in the wire loosening process, the wire clamping can be realized because the control position of the movable knife is sometimes inaccurate, and the wire loosening is not realized.
Disclosure of Invention
The invention aims to solve the defects in the prior art, provides a chain mesh towel embroidery thread cutting mechanism and a thread cutting and loosening method thereof, and improves the working reliability of the thread cutting mechanism.
The purpose of the invention is realized by the following technical scheme:
step D1: controlling the needle rod to lower the needle, hooking the embroidery thread above the needle plate, and stopping the machine head main shaft;
step D2: the moving knife motor drives a gear, the gear drives a rack, and the rack drives the moving knife to extend out for a certain distance so that the tip of the moving knife hook hooks the embroidery thread;
step D3: the moving knife motor drives the gear, the gear drives the rack, the rack drives the moving knife to hook and retreat the embroidery thread, the embroidery thread is cut off when the cutting edge of the moving knife and the cutting edge of the fixed knife are reached, part of the embroidery thread left by the thread is clamped between the pressure spring plate and the thread clamping reed, the moving knife continuously retreats, and when the moving knife induction plate reaches the detection induction switch, the moving knife motor stops to finish thread cutting.
Optionally, step D4: when embroidering, the main shaft of the machine head is controlled to rotate for 2 to 3 circles, after the needle rod reciprocates for 2 to 3 times up and down, the moving knife motor rotates to drive the gear, the gear drives the rack, the rack drives the thread releasing guide plate to extend to the thread clamping reed, thread releasing is completed, the thread is kept still, or the main shaft of the machine head rotates for a plurality of circles and then returns to the thread releasing guide plate.
Optionally, after trimming, the needle rod is controlled to be lifted directly, and the thread end is kept right above the cloth cover.
Optionally, after trimming, after the main shaft of the machine head is controlled to inching, the needle rod is controlled to lift, and the thread end is reserved under the cloth surface.
The chain mesh towel embroidery thread cutting mechanism comprises a movable knife, a fixed knife, a thread loosening guide plate, a rack, a gear seat and a driving elastic sheet, wherein the fixed knife is fixed on a base.
Optionally, still including tablet, detection inductive switch, gear, move the sword motor, its characterized in that to move the sword advancing direction and be the place ahead, tablet fixes at its rear, detects inductive switch and fixes rear above the pinion stand, and the rack slides on the pinion stand.
Optionally, a limiting notch is arranged on the side of the thread releasing guide plate, and the thread releasing guide plate stretches into the limiting notch through a stop block to set a preset range.
Optionally, the front end of the thread releasing guide plate is W-shaped.
Optionally, the front end of the thread releasing guide plate does not exceed the thread clamping reed when the thread releasing guide plate is in the thread releasing position.
Optionally, the driving elastic sheet is U-shaped.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the independent thread loosening guide plate is used, the thread clamping reed can effectively clamp embroidery threads in the thread shearing process, when embroidery is carried out after thread shearing, the machine head main shaft rotates for 2-3 circles, the needle rod moves up and down for 2-3 times, the movable knife motor rotates to drive the gear, the gear drives the rack, the rack drives the thread loosening guide plate to extend to the thread clamping reed, thread loosening is completed and the needle rod keeps still or the machine head main shaft returns after rotating for a plurality of circles, so that the front 2-3 needle ring lifting is facilitated, and the embroidery threads cannot pull cloth to cause cloth deformation.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a thread cutting mechanism in a cutting position;
FIG. 2 is a schematic view of the thread trimming end position of the thread trimming mechanism;
FIG. 3 is a schematic view of the thread releasing position of the thread trimming mechanism during needle raising;
FIG. 4 is a partially enlarged view of the thread releasing position of the thread trimming mechanism of FIG. 3;
FIG. 5 is a schematic view of a thread trimming mechanism;
fig. 6 is a partially exploded view of the thread trimming mechanism.
The thread tension device comprises a pressing spring plate 1, a thread clamping reed 2, a thread moving blade 3, a fixed blade 4, a thread loosening guide plate 5, a thread loosening guide plate 6, a needle plate 7, an induction plate 8, a detection induction switch 9, a gear 10, a rack 11, a movable blade motor 12, a gear seat 13, a driving elastic sheet 14, a base 15, a ring shuttle 15, a stop dog 16, a 51, a front groove 52, a rear groove 53 and a limiting notch.
Detailed Description
The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Referring to fig. 1 to 6, the present embodiment provides a cutting mechanism for embroidering a towel, including a movable knife 3, a fixed knife 4, a thread-loosening guide plate 5, a sensing plate 7, a detection sensing switch 8, a gear 9, a rack 10, a movable knife motor 11, a gear base 12, and a driving elastic sheet 13. The fixed knife 4 is fixed on a base 14 below through the intermediate piece in a switching mode, the moving knife motor 11 is fixed below the gear seat 12, the gear 9 is located above the gear seat 12 and is fixedly connected with the moving knife motor 11, and the gear seat 12 is fixed on the base 14. The rack 10, the thread loosening guide plate 5 and the movable knife 3 are sequentially overlapped and fixedly connected together from bottom to top; the driving elastic sheet 13 is fixedly connected with the rack 10, the driving elastic sheet 13 is U-shaped, the thread releasing guide plate 5 is hollow frame-shaped and is provided with a front groove 51 and a rear groove 52 corresponding to the driving elastic sheet 13, and the thread releasing guide plate 5 can slide in a preset range under the pushing of U-shaped arms at two sides of the driving elastic sheet 13; a limiting notch 53 is arranged on the side of the thread releasing guide plate 5, and the stop block 16 extends into the notch 53 to set a preset range. The moving blade advancing direction is taken as the front, the induction plate 7 is fixed at the rear, the detection induction switch 8 is fixed at the rear of the upper surface of the gear seat 12, and the rack 10 slides on the gear seat 12. The moving blade motor 11 drives the gear 9, the gear 9 drives the rack 10, and the detection induction switch 8 is used for detecting the zero position of the moving blade induction plate 7.
Referring to fig. 1, the embroidery machine includes a movable color changing device including a pressure spring plate 1 corresponding to a ring shuttle, a thread clamping spring 2, and a ring shuttle 15, a needle plate 6, and an upper head having a hooked needle bar. The color changing device is characterized in that each ring shuttle is threaded with embroidery threads with different colors, when the hook of the upper machine head needle is lowered to the low position, the embroidery threads are hung on the hook, and the ring shuttle rotates to drive the embroidery threads led out from the eccentric hole to rotate, so that the looping of the embroidery threads is completed. When changing color, the color changing device is translated to lead the corresponding ring shuttle to be aligned with the corresponding needle hole of the needle plate 6. The chain mesh towel embroidery thread cutting mechanism is matched with the color changing device to realize thread cutting and thread loosening. Referring to fig. 4, the front end of the thread releasing guide plate 5 is W-shaped, the gap is approximately aligned with the thread end, and the thread clamping spring piece 2 and the pressing spring plate 1 are pressed by two sides of the gap of the thread releasing guide plate, so that the thread releasing guide plate can be prevented from pressing the thread end when the thread is released. The front end of the thread releasing guide plate 5 does not exceed the thread clamping reed when in the thread releasing position, so that the thread releasing guide plate can be prevented from pressing the thread end when releasing the thread. The wire clamping reed 2 is V-shaped, and one section of the wire clamping reed is provided with an inward small bent arc, so that the moving knife can return conveniently.
The chain mesh towel embroidery thread cutting and loosening method comprises the following steps:
step D1: controlling the needle rod to lower the needle, hooking the embroidery thread above the needle plate and stopping the main shaft of the machine head;
step D2: the moving knife motor drives a gear, the gear drives a rack, and the rack drives the moving knife to extend out for a certain distance so that the tip of the moving knife hook hooks the embroidery thread;
step D3: the moving knife motor drives the gear, the gear drives the rack, the rack drives the moving knife to hook and retreat the embroidery thread, the embroidery thread is cut off when the cutting edge of the moving knife and the cutting edge of the fixed knife are reached, part of the embroidery thread left by the thread is clamped between the pressure spring plate and the thread clamping reed, the moving knife continuously retreats, and when the moving knife induction plate reaches the detection induction switch, the moving knife motor stops to finish thread cutting.
Optionally, step D4: when embroidering, the machine head spindle is controlled to rotate for 2 to 3 circles, after the needle rod reciprocates up and down for 2 to 3 times, the moving knife motor rotates to drive the gear, the gear drives the rack, the rack drives the thread loosening guide plate to extend to the thread clamping reed, thread loosening is completed, the thread loosening is kept still, or the machine head spindle returns to the thread loosening guide plate after rotating for several circles.
Optionally, because the crochet hook of the needle rod hooks the thread, the needle rod is controlled to be directly lifted after thread cutting, the thread end can be retained right above the cloth surface, and the needle rod is separated from the cloth surface. Therefore, the thread end can be ensured to be left right above the cloth surface, and the chain stitch is prevented from loosening.
Optionally, after the thread is cut, the needle rod moves downwards after the main shaft of the control head moves in a inching manner, so that the thread end is reliably left under the cloth surface, and finally the needle rod is controlled to lift, and the needle rod is separated from the cloth surface. Therefore, the thread end can be ensured to be left under the cloth cover, and the part above the cloth cover is very attractive.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (9)
1. A method for embroidering, trimming and loosing yarns on a towel with chain meshes is characterized by comprising the following steps:
step D1: controlling the needle rod to lower the needle, hooking the embroidery thread above the needle plate, and stopping the machine head main shaft;
step D2: the moving knife motor drives a gear, the gear drives a rack, and the rack drives the moving knife to extend out for a certain distance so that the tip of the moving knife hook hooks the embroidery thread;
step D3: the movable knife motor drives the gear, the gear drives the rack, the rack drives the movable knife to hook and retreat the embroidery thread, the embroidery thread is cut off when the cutting edge of the movable knife and the cutting edge of the fixed knife are reached, part of the embroidery thread left by the thread is clamped between the pressure spring plate and the thread clamping reed, the movable knife continuously retreats, and when the movable knife induction plate reaches the detection induction switch, the movable knife motor stops to finish thread shearing;
step D4: when embroidering, the machine head spindle is controlled to rotate for 2 to 3 circles, after the needle rod reciprocates up and down for 2 to 3 times, the moving knife motor rotates to drive the gear, the gear drives the rack, the rack drives the thread loosening guide plate to extend to the thread clamping reed, thread loosening is completed, the thread loosening is kept still, or the machine head spindle returns to the thread loosening guide plate after rotating for several circles.
2. The chain-mesh towel embroidery thread cutting and loosening method according to claim 1, characterized in that after thread cutting, the needle rod is controlled to be lifted directly to keep the thread end right above the cloth surface.
3. The method for chain-mesh towel embroidery thread trimming and thread releasing according to claim 1, wherein after thread trimming, the needle rod is controlled to be lifted after the main shaft of the machine head is controlled to inching, and the thread end is kept right below the cloth surface.
4. Chain mesh towel embroidery thread trimming mechanism, including moving sword (3), stationary knife (4), pine line baffle (5), rack (10), pinion stand (12), drive shell fragment (13), stationary knife (4) are fixed in base (14), its characterized in that, rack (10), pine line baffle (5), move sword (3) from bottom to top and superpose in proper order and fixed connection together, drive shell fragment (13) and rack (10) fixed connection, pine line baffle (5) are hollow frame form, have preceding groove (51) that correspond with drive shell fragment (13), back groove (52), pine line baffle (5) move in predetermined range under the promotion of drive shell fragment (13).
5. The chain mesh towel embroidery thread cutting mechanism according to claim 4, further comprising an induction plate (7), a detection induction switch (8), a gear (9) and a movable knife motor (11), wherein the induction plate (7) is fixed at the rear part of the movable knife with the advancing direction of the movable knife as the front part, the detection induction switch (8) is fixed at the rear part of the upper surface of the gear seat (12), and the rack (10) slides on the gear seat (12).
6. The chain mesh towel embroidery thread cutting mechanism according to claim 4, characterized in that the thread releasing guide plate (5) is provided with a limit notch (53) at the side, and a preset movement range is set by the stop block (16) extending into the limit notch (53).
7. The chain mesh towel embroidery thread cutting mechanism according to claim 4, characterized in that the front end of the thread releasing guide plate (5) is W-shaped.
8. The chain mesh towel embroidery thread cutting mechanism according to claim 4, characterized in that the front end of the thread releasing guide plate (5) does not exceed the thread clamping reed when in the thread releasing position.
9. The chain mesh towel embroidery thread cutting mechanism according to claim 4, characterized in that the driving spring plate (13) is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110708921.3A CN113322594B (en) | 2021-06-25 | 2021-06-25 | Chain mesh towel embroidery thread cutting mechanism and thread cutting and loosening method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110708921.3A CN113322594B (en) | 2021-06-25 | 2021-06-25 | Chain mesh towel embroidery thread cutting mechanism and thread cutting and loosening method thereof |
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| Publication Number | Publication Date |
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| CN113322594A CN113322594A (en) | 2021-08-31 |
| CN113322594B true CN113322594B (en) | 2022-05-06 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737326B (en) * | 2022-02-28 | 2023-07-28 | 佛山市启创科技发展有限公司 | Computerized embroidery machine for toothbrush embroidery |
| CN116641192A (en) * | 2023-06-12 | 2023-08-25 | 浙江越隆缝制设备有限公司 | A towel ring shuttle mechanism for an embroidery machine and its application method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8329216U1 (en) * | 1983-10-10 | 1984-01-05 | Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern | THREAD GUARD FOR SEWING, EMBROIDERY AND TUFTING MACHINES OR THE LIKE |
| US5623887A (en) * | 1994-07-29 | 1997-04-29 | Tokai Kogyo Mishin Kabushiki Kaisha | Thread cutting device in sewing machine |
| CN201424573Y (en) * | 2009-06-02 | 2010-03-17 | 北京兴大豪科技开发有限公司 | Wire cutting mechanism of embroidery machine with double separation blades |
| CN102535057B (en) * | 2012-01-19 | 2014-06-25 | 石狮市永信电脑设备制造有限公司 | Shearing device for embroidery machine |
| CN202500011U (en) * | 2012-04-06 | 2012-10-24 | 中捷大宇机械有限公司 | Simultaneous base line trimming mechanism for high-speed embroidery machine |
| CN210420459U (en) * | 2019-05-10 | 2020-04-28 | 宁波双玉机电制造有限公司 | Line pressing reed and line shearing movable and fixed cutter assembly adopting same |
| CN110079945A (en) * | 2019-05-16 | 2019-08-02 | 东阳市双燕设备有限公司 | Trimming device for embroidery machine |
| CN212152641U (en) * | 2020-04-01 | 2020-12-15 | 浙江翔科缝纫机股份有限公司 | Automatic presser foot lifting, thread trimming and thread loosening driving mechanism of sewing machine |
| CN112442809B (en) * | 2020-12-25 | 2025-06-27 | 浙江镨美科智能刺绣设备有限公司 | A thread trimming device for a small head distance embroidery machine |
| CN112647208B (en) * | 2021-02-09 | 2021-12-31 | 浙江镨美科智能刺绣设备有限公司 | Thread cutting method of embroidery machine |
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Effective date of registration: 20220708 Address after: 311800 north side of Shaoda line, Taihe village, Huandong street, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG MAYA ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 467500 Yunxiu garden, southwest of the intersection of Mazhuang Jiaoliu Railway North and national highway 207, Ruzhou industrial agglomeration area, Pingdingshan City, Henan Province Patentee before: Ruzhou Mayan mechanical and Electrical Technology Co.,Ltd. |
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