CN114717759B - Bottom line detection structure of sewing machine - Google Patents
Bottom line detection structure of sewing machine Download PDFInfo
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- CN114717759B CN114717759B CN202110007131.2A CN202110007131A CN114717759B CN 114717759 B CN114717759 B CN 114717759B CN 202110007131 A CN202110007131 A CN 202110007131A CN 114717759 B CN114717759 B CN 114717759B
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- sensor
- sewing machine
- sensor probe
- air
- air blowing
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 238000009958 sewing Methods 0.000 title claims abstract description 44
- 239000000523 sample Substances 0.000 claims abstract description 66
- 238000007664 blowing Methods 0.000 claims abstract description 51
- 239000013307 optical fiber Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
- D05B59/02—Devices for determining or indicating the length of thread still on the bobbin
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a bottom thread detection structure of a sewing machine, and belongs to the technical field of sewing machines. The technical problems that the whole structure of the bottom line detection and blowing cleaning of the existing sewing machine is not compact enough and the like are solved. The sewing machine comprises a mounting seat and a rotating shuttle assembly; the rotating shuttle assembly is provided with a shuttle core; the bottom line detection structure comprises a controller, an air blowing pipe connected with an air source and a sensor assembly fixedly arranged on a mounting seat, wherein the sensor assembly comprises a sensor body and a sensor probe fixedly arranged on the sensor body, the sensor probe is connected with the controller, and the sensor probe is opposite to a shuttle core; the air blowing pipe passes through the sensor body and faces to the sensor probe or/and the channel position between the sensor probe and the shuttle core; or the sensor body is provided with an air blowing port which is communicated with the air blowing pipe and faces to the position of the sensor probe or/and a channel between the sensor probe and the shuttle core. The bottom line detection structure and the blowing cleaning structure are integrated into an integrated structure, so that the structure is compact and the application range is wide.
Description
Technical Field
The invention belongs to the technical field of sewing machines, and relates to a bottom line detection structure of a sewing machine.
Background
At present, a flat seaming machine or a template machine with a bottom line detection function generally adopts a photoelectric sensor (with larger volume), and a mechanical or air source type cleaning device is added, so that the mechanical cleaning device cannot effectively clean thread and greasy dirt and cannot be used in a large amount, and an air source type device needs to be additionally provided with devices such as an air pipe on the basis of the photoelectric sensor, so that the bottom line detection device used in the market at present is not suitable for machines with compact rotating shuttle positions such as a roller car and the like. In the market, roller cars with a bottom line detection function exist at present, an optical fiber sensor (with smaller volume) is adopted, but no device for cleaning the hair of the thread is arranged because the installation space of the rotating shuttle part is limited. In the process of sewing a workpiece, fine thread hair, crushed aggregates particles and splashed oil stains near the rotating shuttle are easy to adhere to the mirror surface of the probe or attached to the beam channel of the sensor probe, so that false alarm or false alarm of bottom thread detection can be caused, and the stability and reliability of the bottom thread detection function are seriously affected. Therefore, how to improve the reliability of the bottom line detection is a technical problem that needs to be solved by those skilled in the art.
For example, china's patent (bulletin No. CN107099949A; bulletin day No. 2017-08-29) discloses a bobbin thread detecting device, which comprises a bobbin case and a bobbin core positioned in the bobbin case, wherein the bobbin core comprises a winding post and flanges positioned at two ends of the winding post, the bobbin case is provided with a first detecting port and a second detecting port, and the flanges are provided with a first detecting part and a second detecting part which can rotate to the first detecting port and the second detecting port; the bottom line detection device also comprises a first emitter and a first receiver which are arranged opposite to the first detection port, and a second emitter and a second receiver which are arranged opposite to the second detection port.
The bottom line detection device in the patent document is not provided with a line hair cleaning device, error induction is easy to cause, the traditional bottom line detection device and the line hair cleaning device are limited by installation space, the adaptation surface is narrow, and the bottom line detection device and the line hair cleaning device are difficult to apply to machines with compact rotating shuttle positions such as a roller car.
Disclosure of Invention
The invention provides a bottom line detection structure of a sewing machine aiming at the problems existing in the prior art, and aims to solve the technical problems that: how to improve the accurate reliability and the compact structure of the bottom line detection structure.
The aim of the invention can be achieved by the following technical scheme:
a bottom thread detection structure of a sewing machine, the sewing machine includes a mounting seat and a rotating shuttle assembly; the rotating shuttle assembly is provided with a shuttle core; the bobbin thread detection structure is characterized by comprising a controller, a blowing pipe connected with an air source and a sensor assembly fixedly arranged on the mounting seat, wherein the sensor assembly comprises a sensor body and a sensor probe fixedly arranged on the sensor body, the sensor probe is connected with the controller, and the sensor probe is opposite to the shuttle core; the air blowing pipe penetrates through the sensor body to face the sensor probe or/and a channel position between the sensor probe and the shuttle core; or the sensor body is provided with an air blowing port which is communicated with the air blowing pipe and faces to the position of the sensor probe or/and the passage between the sensor probe and the shuttle core.
The working principle is as follows: the bottom surface of the shuttle core is provided with a reflecting layer or a reflecting sheet, the sensor probe can emit light beams towards the reflecting layer or the reflecting sheet and reflect the light beams to the receiving part of the sensor probe through the reflecting layer or the reflecting sheet so as to detect the allowance of the bottom line; meanwhile, the blowing pipe is arranged to blow air towards the mirror surface of the sensor probe and the beam channel of the mirror surface, so that tiny line hair, crushed aggregates particles, splashed oil stains and other impurities on the sensor probe and the beam channel are reduced, the channel between the sensor probe for detecting the bottom line and the shuttle core can be smoother, the possibility of failure of the bottom line detection sensor is greatly reduced, and the stability and reliability of the bottom line detection are ensured.
In the technical scheme, the sensor probe and the air blowing pipe are fixedly arranged on the sensor body, so that an integrated structure is formed, the smaller volume is realized, the stable air blowing function is achieved, the application range of the bottom line detection is enlarged, the sensor probe and the air blowing pipe can be applied to machine equipment with smaller space at rotating shuttles of a roller car and the like, and the stable reliability of the bottom line detection is improved.
In the bottom line detection structure of the sewing machine, the bottom line detection structure further comprises an air valve, the air valve is fixedly arranged on a shell of the sewing machine and communicated with the air blowing pipe, and the air valve is provided with an air inlet communicated with an air source. The air valve is used for controlling the on-off of the blowing air flow, the air valve is electrically connected with a timer for enabling the air valve to be opened and closed at regular time, the timer can be electrically connected with a main controller of the sewing machine, and the opening and closing of the air valve and the sewing process are uniformly controlled through the main controller of the sewing machine. Of course, as other schemes, the main controller can also control the opening and closing of the air valve according to other instructions (such as cutting wires). Alternatively, the gas valve may be configured for manual control. Through intermittent type formula of blowing or manual control blowing, in time effectual debris such as fine line hair, crushed aggregates granule and splashed greasy dirt on reduction sensor probe and the light beam passageway make the passageway of sensor probe and shuttle core more smooth and easy to greatly reduced bottom line detects the possibility of error, thereby guarantee stability and the reliability that the bottom line was examined.
In the bottom line detection structure of the sewing machine, the air blowing pipe comprises a hard pipe section and a hose section, one end of the hard pipe section is used as an air outlet, the other end of the hard pipe section is communicated with one end of the hose section, and the other end of the hose section is connected with an air source. The installation arrangement of the whole air blowing pipe is convenient, and meanwhile, the stable and reliable blowing of the air outlet of the air blowing pipe to the sensor probe and the light beam channel is ensured.
In the bottom line detection structure of the sewing machine, the hard pipe section is a copper pipe, and the hose section is a plastic hose; the number of the air outlets at the end part of the hard pipe section is one or more than two. In this way, the air flow can be dispersed and blown to the sensor probe and the light beam channel, so that the air flow is more uniformly and reliably acted on the target area; thereby obviously reducing the wire hair, crushed aggregates particles, splashed greasy dirt and the like attached to the sensor probe or the beam channel and improving the reliability of the bottom line detection. Further, an air blowing connector can be arranged at the air outlet at the end part of the hard pipe section.
Alternatively, the hard pipe section may be a plastic part or a hard part made of other materials.
In the bottom line detection structure of the sewing machine, the mounting seat is fixedly provided with the mounting bracket, and the sensor body is fixedly arranged on the mounting bracket. Further, the sensor body is fixedly connected with the mounting bracket through a first screw, and the mounting bracket is fixed on the mounting seat through a second screw. On the roller car, the mounting seat can directly utilize the existing tool apron.
In the bottom line detection structure of the sewing machine, the sensor body is provided with the mounting hole, and the connecting lines between the air blowing pipe and the sensor probe and the controller all penetrate through the mounting hole.
In the above-mentioned bottom line detection structure of a sewing machine, as another scheme, an air duct is injection molded on the sensor body, the air duct is communicated with one end of the air duct, and the other end of the air duct is located below the sensor probe and the end is provided with an air blowing joint.
In the bottom line detection structure of the sewing machine, the sensor component is an optical fiber sensor; the controller is fixedly arranged on a shell of the sewing machine, and the sensor probe is connected with the controller through an optical fiber.
In the bottom line detection structure of the sewing machine, the sensor component is a photoelectric sensor; the controller is fixedly arranged on a shell of the sewing machine, and the sensor probe is connected with the controller through an electric wire.
Compared with the prior art, the sensor probe and the air blowing pipe are fixedly arranged on the sensor body, so that an integrated structure is formed, a stable air blowing function is achieved through smaller volume, the application range of bottom line detection is expanded, the sensor probe and the air blowing pipe can be applied to machine equipment with smaller space at rotating shuttles of a roller car and the like, and the stability and reliability of bottom line detection are improved; the installation requirement and the use cost are reduced.
Drawings
Fig. 1 is a schematic diagram of a mounting structure of a background wire detection structure in the first embodiment.
Fig. 2 is a schematic diagram of a partial perspective view of a background line detection structure in a first embodiment.
Fig. 3 is a schematic diagram of a partial perspective view of a background line detection structure in the first embodiment.
In the figure, 1, a mounting seat; 2. a rotating shuttle assembly; 21. a bobbin; 3. a controller; 4. an air blowing pipe; 41. a hard pipe section; 42. a hose section; 5. a sensor assembly; 51. a sensor body; 51a, mounting holes; 52. a sensor probe; 6. an air valve; 61. an air inlet; 7. a mounting bracket; 8. a first screw; 9. and a second screw.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1, 2 and 3, the sewing machine includes a mounting seat 1 and a rotating shuttle assembly 2; the rotating shuttle assembly 2 is provided with a shuttle core 21, and the bottom surface of the shuttle core 21 is provided with a reflecting layer or a reflecting sheet; the bottom line detection structure comprises a controller 3, an air valve 6, an air blowing pipe 4 connected with an air source and a sensor assembly 5 fixedly arranged on a mounting seat 1, wherein the sensor assembly 5 comprises a sensor body 51 and a sensor probe 52 fixedly arranged on the sensor body 51, the sensor probe 52 is connected with the controller 3, and the sensor probe 52 is opposite to a shuttle core 21; the sensor probe 52 is capable of emitting a light beam toward the reflective layer or the reflective sheet, and reflecting the light beam onto the receiving portion of the sensor probe 52 through the reflective layer or the reflective sheet for detecting the allowance of the bobbin thread; the blowing pipe 4 passes through the sensor body 51 toward the sensor probe 52 or/and the passage position between the sensor probe 52 and the bobbin 21; the air valve 6 is fixedly arranged on the shell of the sewing machine, the air valve 6 is communicated with the air blowing pipe 4, and the air valve 6 is provided with an air inlet 61 communicated with an air source.
Specifically, a mounting bracket 7 is fixedly arranged on the mounting seat 1, and the sensor body 51 is fixedly arranged on the mounting bracket 7 through a first screw 8; the mounting bracket 7 is fixed on the mounting seat 1 through a second screw 9. In the case of a roller carriage, the mounting 1 can be simply an existing tool holder. The sensor body 51 is provided with a mounting hole 51a, and the connecting lines between the air blowing pipe 4 and the sensor probe 52 and the controller 3 all penetrate through the mounting hole 51a.
The sensor assembly 5 in this embodiment is an optical fiber sensor; the controller 3 is fixedly arranged on the casing of the sewing machine, and the sensor probe 52 is connected with the controller 3 through an optical fiber.
In this embodiment, the sensor body 51 can rotate around the X direction by the first screw 8 to adjust the optical fiber signal, and rotate around the Z direction by the second screw 9 to adjust the optical fiber signal, so that the optical fiber signal lamp of the sensor can be adjusted to be normally on. The air valve 6 is used for controlling the on-off of the blowing air flow, the air valve 6 is electrically connected with a timer for enabling the air valve 6 to be opened and closed at fixed time, the timer can be electrically connected with the main controller 3 of the sewing machine, and the opening and closing of the air valve 6 and the sewing process are uniformly controlled through the main controller of the sewing machine. Of course, as other schemes, the main controller can also control the opening and closing of the air valve 6 according to other instructions (such as cutting wires). Alternatively, the gas valve 6 may be controlled manually. Through setting up the mirror surface that the gas blow pipe 4 was directed towards sensor probe 52 and light beam channel blow, reduce debris such as tiny line hair, crushed aggregates granule and splashed greasy dirt on sensor probe 52 and the light beam channel, make the sensor probe 52 that the bobbin thread detected and the passageway of shuttle core 21 can be more smooth and easy to greatly reduced the malfunctioning possibility of bobbin thread detection sensor, guarantee stability and the reliability that the bobbin thread detected. In this embodiment, the sensor probe 52 and the air blowing pipe 4 are both fixedly arranged on the sensor body 51, so that an integrated structure is formed, a stable air blowing function is achieved by a smaller volume, the application range of the bottom line detection is enlarged, the sensor probe and the air blowing pipe can be applied to machine equipment with smaller space at rotating shuttles of a roller car and the like, and the stability and reliability of the bottom line detection are improved.
In this embodiment, the air blowing pipe 4 includes a hard pipe section 41 and a soft pipe section 42, one end of the hard pipe section 41 is used as an air outlet, and an air blowing joint is further arranged at the air outlet; the other end of the hard pipe section 41 is communicated with one end of a hose section 42, and the other end of the hose section 42 is connected with an air source; more specifically, the hard tube section 41 is a copper tube, and the hose section 42 is a plastic hose; the number of air outlets at the end of the hard pipe section 41 is one or more than two. In this way, the air flow can be dispersed and blown to the sensor probe 52 and the light beam channel, so that the air flow can act on the target area more uniformly and reliably; thereby significantly reducing the line hair, crushed material particles, splashed oil stains and the like attached to the sensor probe 52 or the beam path, and improving the reliability of the bobbin thread detection.
Example two
The embodiment is substantially the same as the first embodiment, except that in the embodiment, a ventilation pipe is injection molded on the sensor body 51, the ventilation pipe 4 is communicated with one end of the ventilation pipe, the other end of the ventilation pipe is located below the sensor probe 52, and the end is provided with a ventilation joint; the blow joint is oriented toward the sensor probe 52 or/and the channel location between the sensor probe 52 and the bobbin 21.
Example III
The present embodiment is substantially the same as the first embodiment except that the sensor assembly 5 is a photoelectric sensor in the present embodiment; the controller 3 is fixedly arranged on the casing of the sewing machine, and the sensor probe 52 is connected with the controller 3 through wires.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A bottom thread detection structure of a sewing machine, the sewing machine comprises a mounting seat (1) and a rotating shuttle assembly (2); the rotating shuttle assembly (2) is provided with a shuttle core (21); the bobbin thread detection structure is characterized by comprising a controller (3), an air blowing pipe (4) connected with an air source and a sensor assembly (5) fixedly arranged on the mounting seat (1), wherein the sensor assembly (5) comprises a sensor body (51) and a sensor probe (52) fixedly arranged on the sensor body (51), the sensor probe (52) is connected with the controller (3), and the sensor probe (52) is opposite to the shuttle core (21); the air blowing pipe (4) passes through the sensor body (51) to face the sensor probe (52) or/and a channel position between the sensor probe (52) and the shuttle core (21); or the sensor body (51) is provided with an air blowing port which is communicated with the air blowing pipe (4) and faces to the sensor probe (52) or/and the channel position between the sensor probe (52) and the shuttle core (21);
the sensor is characterized in that a mounting hole (51 a) is formed in the sensor body (51), connecting lines between the air blowing pipe (4) and the sensor probe (52) and the controller (3) all penetrate through the mounting hole (51 a), or an air blowing pipe is formed in the sensor body (51) in an injection molding mode, the air blowing pipe (4) is communicated with one end of the air blowing pipe, and the other end of the air blowing pipe is located below the sensor probe (52) and provided with an air blowing joint.
2. The bottom line detection structure of the sewing machine according to claim 1, further comprising an air valve (6), wherein the air valve (6) is fixedly arranged on a casing of the sewing machine, the air valve (6) is communicated with the air blowing pipe (4), and an air inlet (61) communicated with an air source is formed in the air valve (6).
3. The bobbin thread detection structure of a sewing machine according to claim 1 or 2, wherein the air blowing pipe (4) comprises a hard pipe section (41) and a hose section (42), one end of the hard pipe section (41) serves as an air outlet, the other end of the hard pipe section (41) is communicated with one end of the hose section (42), and the other end of the hose section (42) is connected with an air source.
4. A bottom line detecting structure of a sewing machine according to claim 3, characterized in that the hard tube section (41) is a copper tube and the hose section (42) is a plastic hose; the number of the air outlets at the end part of the hard pipe section (41) is one or more than two.
5. The bottom line detection structure of a sewing machine according to claim 1 or 2, wherein a mounting bracket (7) is fixedly arranged on the mounting seat (1), and the sensor body (51) is fixedly arranged on the mounting bracket (7).
6. The bottom thread detecting structure of a sewing machine according to claim 1 or 2, characterized in that the sensor assembly (5) is an optical fiber sensor; the controller (3) is fixedly arranged on a machine shell of the sewing machine, and the sensor probe (52) is connected with the controller (3) through an optical fiber.
7. The bottom thread detecting structure of a sewing machine according to claim 1 or 2, wherein the sensor assembly (5) is a photoelectric sensor; the controller (3) is fixedly arranged on a machine shell of the sewing machine, and the sensor probe (52) is connected with the controller (3) through an electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007131.2A CN114717759B (en) | 2021-01-05 | 2021-01-05 | Bottom line detection structure of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007131.2A CN114717759B (en) | 2021-01-05 | 2021-01-05 | Bottom line detection structure of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114717759A CN114717759A (en) | 2022-07-08 |
| CN114717759B true CN114717759B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110007131.2A Active CN114717759B (en) | 2021-01-05 | 2021-01-05 | Bottom line detection structure of sewing machine |
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| Country | Link |
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| CN (1) | CN114717759B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660624A (en) * | 2018-05-31 | 2018-10-16 | 杰克缝纫机股份有限公司 | A kind of baseline surplus testing agency of sewing machine |
| CN209798269U (en) * | 2019-04-16 | 2019-12-17 | 浙江耐拓机电科技有限公司 | Bottom thread allowance detection device and sewing machine |
| CN209798278U (en) * | 2019-04-26 | 2019-12-17 | 拓卡奔马机电科技有限公司 | template machine and cleaning structure of bobbin thread detection sensor of sewing machine |
| CN209798270U (en) * | 2019-04-26 | 2019-12-17 | 拓卡奔马机电科技有限公司 | sewing machine bottom line detection device |
| CN209890870U (en) * | 2019-04-30 | 2020-01-03 | 石狮市众利缝纫设备贸易有限公司 | Bottom line detection device of provincial sewing machine |
| CN211112604U (en) * | 2019-11-25 | 2020-07-28 | 杰克缝纫机股份有限公司 | Antifouling device for preventing photoelectric bottom line from detecting pollution of sensor signal channel |
| CN212051881U (en) * | 2020-03-20 | 2020-12-01 | 杰克缝纫机股份有限公司 | Bottom thread detection device and sewing equipment with same |
-
2021
- 2021-01-05 CN CN202110007131.2A patent/CN114717759B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660624A (en) * | 2018-05-31 | 2018-10-16 | 杰克缝纫机股份有限公司 | A kind of baseline surplus testing agency of sewing machine |
| CN209798269U (en) * | 2019-04-16 | 2019-12-17 | 浙江耐拓机电科技有限公司 | Bottom thread allowance detection device and sewing machine |
| CN209798278U (en) * | 2019-04-26 | 2019-12-17 | 拓卡奔马机电科技有限公司 | template machine and cleaning structure of bobbin thread detection sensor of sewing machine |
| CN209798270U (en) * | 2019-04-26 | 2019-12-17 | 拓卡奔马机电科技有限公司 | sewing machine bottom line detection device |
| CN209890870U (en) * | 2019-04-30 | 2020-01-03 | 石狮市众利缝纫设备贸易有限公司 | Bottom line detection device of provincial sewing machine |
| CN211112604U (en) * | 2019-11-25 | 2020-07-28 | 杰克缝纫机股份有限公司 | Antifouling device for preventing photoelectric bottom line from detecting pollution of sensor signal channel |
| CN212051881U (en) * | 2020-03-20 | 2020-12-01 | 杰克缝纫机股份有限公司 | Bottom thread detection device and sewing equipment with same |
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| Publication number | Publication date |
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| CN114717759A (en) | 2022-07-08 |
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