CN114717759A - Bottom thread detection structure of sewing machine - Google Patents
Bottom thread detection structure of sewing machine Download PDFInfo
- Publication number
- CN114717759A CN114717759A CN202110007131.2A CN202110007131A CN114717759A CN 114717759 A CN114717759 A CN 114717759A CN 202110007131 A CN202110007131 A CN 202110007131A CN 114717759 A CN114717759 A CN 114717759A
- Authority
- CN
- China
- Prior art keywords
- sensor
- sewing machine
- sensor probe
- air
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000009958 sewing Methods 0.000 title claims abstract description 45
- 239000000523 sample Substances 0.000 claims abstract description 64
- 238000007664 blowing Methods 0.000 claims abstract description 45
- 239000013307 optical fiber Substances 0.000 claims description 10
- 238000009423 ventilation Methods 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
- 238000004140 cleaning Methods 0.000 abstract description 9
- 210000004209 hair Anatomy 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009966 trimming Methods 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
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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 line detection structure of a sewing machine, and belongs to the technical field of sewing machines. The bottom line detection and blowing cleaning integrated structure solves the technical problems that an existing sewing machine is not compact enough in bottom line detection and blowing cleaning integrated structure. The sewing machine comprises a mounting seat and a rotating shuttle component; the rotating shuttle assembly is provided with a shuttle peg; the bobbin thread 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 bobbin; the air blowing pipe penetrates through the sensor body and faces the sensor probe or/and a channel between the sensor probe and the shuttle peg; or the sensor body is provided with an air blowing opening which is communicated with the air blowing pipe and faces the sensor probe or/and the channel position between the sensor probe and the shuttle peg. The bottom line detection structure and the blowing cleaning structure are integrated into a whole 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 sewing machine or a template machine with a bobbin thread detection function generally adopts a photoelectric sensor (with a large volume), a mechanical or air source type cleaning device is added, the mechanical cleaning device cannot be used in large quantity because the mechanical cleaning device cannot effectively clean thread hairs and oil stains, and an air pipe and other devices are additionally arranged on the basis of the photoelectric sensor, so that the bobbin thread detection device used in the market at present is not suitable for machines with compact structures of rotating shuttle parts such as a roller car and the like. Currently, a roller car with a bottom line detection function exists in the market, an optical fiber sensor (small in size) is adopted, and a thread hair cleaning device is not installed due to the fact that the installation space of a rotating shuttle position of the roller car is limited. In the process of sewing a workpiece, fine thread hairs, crushed material particles and splashed oil stains near the rotating shuttle are easily adhered to the mirror surface of the probe or a light beam channel of the sensor probe, which can cause false alarm or false report of bottom thread detection and seriously affect the stability and reliability of the bottom thread detection function. 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, a Chinese patent (publication number: CN 107099949A; publication date: 2017-08-29) discloses a bobbin thread detection device, which comprises a bobbin case and a bobbin located in the bobbin case, wherein the bobbin comprises a winding post and flanges located at two ends of the winding post, the bobbin case is provided with a first detection port and a second detection port, and the flanges are provided with a first detection part and a second detection part which can rotate to the first detection port and the second detection port; the bottom line detection device further comprises a first transmitter and a first receiver which are used for being over against the first detection port, and further comprises a second transmitter and a second receiver which are used for being over against the second detection port.
The bobbin thread detecting device in the patent document is not provided with a thread and hair cleaning device, which easily causes false induction, and the traditional bobbin thread detecting device and the traditional thread and hair cleaning device are limited by installation space, have narrow adaptation surfaces, and are difficult to be applied to machines with compact structures of rotating shuttle parts such as a roller car.
Disclosure of Invention
The invention provides a bottom thread detection structure of a sewing machine aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to improve the accurate reliability and the compact structure of bottom line detection structure.
The purpose of the invention can be realized by the following technical scheme:
a bottom line detection structure of a sewing machine comprises a mounting seat and a rotating shuttle assembly; the rotating shuttle assembly is provided with a shuttle peg; the bobbin thread detection structure is characterized by comprising a controller, an air 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 bobbin; the air blowing pipe penetrates through the sensor body and faces the sensor probe or/and a channel position between the sensor probe and the shuttle peg; or the sensor body is provided with an air blowing opening which is communicated with the air blowing pipe and faces the sensor probe or/and a channel position between the sensor probe and the shuttle peg.
The working principle is as follows: the bottom surface of the shuttle peg 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 a receiving part of the sensor probe through the reflecting layer or the reflecting sheet for detecting the allowance of the bottom line; simultaneously blow towards sensor probe's mirror surface and beam channel through setting up the gas blow pipe, reduce sensor probe and beam channel go up debris such as slight line hair, crushed aggregates granule and the greasy dirt that splashes, make the sensor probe that the bottom line detected and the passageway of shuttle-peg can be more smooth and easy to greatly reduced bottom line detects the malfunctioning possibility of sensor, guarantees bottom line detection's stability and reliability.
According to 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, a stable air blowing function is achieved due to the smaller size, the application range of bottom line detection is enlarged, the device can be applied to machine equipment with smaller space at rotating shuttles such as a roller car, and the stability and reliability of bottom line detection are improved.
In the above bottom thread detecting structure of the sewing machine, the bottom thread detecting structure further comprises an air valve, the air valve is fixedly arranged on a machine shell of the sewing machine and is communicated with the air blowing pipe, and an air inlet communicated with an air source is formed in the air valve. The air valve is used for controlling the on-off of the blowing air flow, the air valve is electrically connected with a timer which is used for enabling the air valve to be opened and closed at fixed time, the timer can be electrically connected with a main controller of the sewing machine, and the opening and closing and sewing processes of the air valve are controlled in a unified mode through the main controller of the sewing machine. Of course, as another scheme, the main controller may also control the opening and closing of the air valve according to other instructions (such as trimming). Alternatively, the gas valve may be manually controlled. Through intermittent type formula blowing or manual control blowing, debris such as slight line hair, crushed aggregates granule and the greasy dirt that splashes on timely effectual reduction sensor probe and the beam passage make the passageway of sensor probe and shuttle peg can be more smooth and easy to greatly reduced bottom line detects the possibility of error, thereby guarantees stability and the reliability that the bottom line was examined.
In the bobbin thread detecting structure of the sewing machine, the 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. Therefore, the whole air blowing pipe is convenient to install and arrange, and the air outlet of the air blowing pipe is ensured to be stably and reliably blown to the sensor probe and the light beam channel.
In the bobbin thread detecting structure of the sewing machine, the hard tube section is a copper tube, and the soft tube section is a plastic hose; one or more than two air outlets are arranged at the end part of the hard pipe section. Thus, the air can be scattered and blown to the sensor probe and the light beam channel, so that the air flow can act on a target area more uniformly and reliably; thereby obviously reducing the thread hairs, crushed material particles, splashed oil stains and the like attached to the sensor probe or the light beam channel and improving the reliability of bottom line detection. Furthermore, an air blowing joint can be arranged at an air outlet at the end part of the hard pipe section.
Alternatively, the rigid pipe section may be a plastic or other rigid member.
In the bobbin thread detecting structure of the sewing machine, the mounting base 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 a roller car, the mounting base can directly utilize the existing tool apron.
In the bobbin thread detection structure of the sewing machine, the sensor body is provided with a mounting hole, and the air blowing pipe and a connecting line between the sensor probe and the controller penetrate through the mounting hole.
In the bobbin thread detection structure of the sewing machine, as another scheme, a ventilation pipeline is injected on the sensor body, the air blowing pipe is communicated with one end of the ventilation pipeline, the other end of the ventilation pipeline is positioned below the sensor probe, and an air blowing joint is arranged at the end of the ventilation pipeline.
In the bobbin thread detecting structure of the sewing machine, the sensor assembly 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 line.
In the bobbin thread detecting structure of the sewing machine described above, the sensor assembly 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 a 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 due to the 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 such as a roller car and the like, and the stability and the reliability of bottom line detection are improved; the installation requirement and the use cost are reduced.
Drawings
FIG. 1 is a schematic view of an installation structure of a background line detection structure according to an embodiment.
Fig. 2 is a schematic partial perspective view of a background line detection structure according to an embodiment.
Fig. 3 is a schematic partial perspective view of a background line detection structure according to 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. mounting a bracket; 8. a first screw; 9. and a second screw.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1, 2 and 3, the sewing machine includes a mount 1 and a rotary shuttle assembly 2; the rotating shuttle component 2 is provided with a shuttle peg 21, and the bottom surface of the shuttle peg 21 is provided with a reflective layer or a reflective sheet; the bobbin thread 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 bobbin 21; the sensor probe 52 can emit a light beam toward the reflective layer or the reflective sheet, and the light beam is reflected to the receiving part of the sensor probe 52 through the reflective layer or the reflective sheet to detect the margin of the ground line; the air blowing pipe 4 passes through the sensor body 51 and faces the sensor probe 52 or/and a channel position between the sensor probe 52 and the shuttle peg 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, the mounting base 1 is fixedly provided with a mounting bracket 7, 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 base 1 through a second screw 9. On a roller car, the mounting base 1 can be directly used by the existing tool apron. The sensor body 51 is provided with a mounting hole 51a, and the connecting lines between the blowing pipe 4 and the sensor probe 52 and the controller 3 pass through the mounting hole 51 a.
The sensor assembly 5 in this embodiment is an optical fiber sensor; the controller 3 is fixed on the shell of the sewing machine, and the sensor probe 52 is connected with the controller 3 through an optical fiber line.
In this embodiment, the sensor body 51 can adjust the optical fiber signal around the X direction by rotating the first screw 8, and can adjust the optical fiber signal around the Z direction by rotating the second screw 9, 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 which is used for enabling the air valve 6 to be opened and closed at regular time, the timer can be electrically connected with the main controller 3 of the sewing machine, and the opening and closing and sewing processes of the air valve 6 are controlled in a unified mode through the main controller of the sewing machine. Of course, as another scheme, the main controller may also control the opening and closing of the air valve 6 according to other instructions (such as trimming). Alternatively, the gas valve 6 may be manually controlled. Blow towards sensor probe 52's mirror surface and beam channel through setting up gas blow pipe 4, reduce sensor probe 52 and beam channel and go up debris such as slight line hair, crushed aggregates granule and the greasy dirt that splashes, make sensor probe 52 that the bottom line detected and shuttle peg 21's passageway can be more smooth and easy to greatly reduced bottom line detects the malfunctioning possibility of sensor, guarantees bottom line detection's stability and reliability. In this embodiment, the sensor probe 52 and the blowing pipe 4 are both fixed on the sensor body 51, so as to form an integrated structure, achieve a stable blowing function with a smaller volume, expand the application range of the bobbin thread detection, be applied to machinery equipment with a smaller space at the rotating shuttle, such as a roller car, and improve the stability and reliability of the bobbin thread detection.
The air blowing pipe 4 in the embodiment comprises a hard pipe section 41 and a hose section 42, wherein 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 the hose section 42, and the other end of the hose section 42 is connected with an air source; more specifically, the hard pipe section 41 is a copper pipe, and the flexible pipe section 42 is a plastic flexible pipe; one or more than two air outlets are arranged at the end part of the hard pipe section 41. Thus, the air can be scattered to blow towards 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 obviously reducing the thread hairs, crushed material particles, splashed oil stains and the like attached on the sensor probe 52 or the light beam channel and improving the reliability of bottom thread detection.
Example two
The present embodiment is substantially the same as the first embodiment, except that in the present embodiment, a ventilation pipe is injected on the sensor body 51, the air blowing 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 an air blowing joint; the blow-in connector is oriented toward the sensor probe 52 or/and the passage 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 element 5 in the present embodiment is a photoelectric sensor; the controller 3 is fixed on the shell of the sewing machine, and the sensor probe 52 is connected with the controller 3 through a wire.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A bottom thread detection structure of a sewing machine comprises a mounting seat (1) and a rotating shuttle component (2); the rotating shuttle component (2) is provided with a shuttle peg (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 base (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 bobbin (21); the air blowing pipe (4) penetrates through the sensor body (51) and faces the sensor probe (52) or/and a channel position between the sensor probe (52) and the shuttle peg (21); or the sensor body (51) is provided with an air blowing opening which is communicated with the air blowing pipe (4) and faces the sensor probe (52) or/and a channel position between the sensor probe (52) and the shuttle peg (21).
2. The bobbin thread detecting 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 machine 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.
3. The lower thread detecting structure of a sewing machine according to claim 1 or 2, wherein the blow pipe (4) comprises 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, the other end of the hard pipe section (41) is communicated with one end of the soft pipe section (42), and the other end of the soft pipe section (42) is connected with an air source.
4. The bobbin thread detecting structure of sewing machine according to claim 3, wherein the hard tube section (41) is a copper tube, and the soft tube section (42) is a plastic hose; one or more than two air outlets are arranged at the end part of the hard pipe section (41).
5. The lower thread detecting structure of a sewing machine according to claim 1 or 2, wherein a mounting bracket (7) is fixedly provided on the mounting base (1), and the sensor body (51) is fixedly provided on the mounting bracket (7).
6. The bottom line detecting structure of the sewing machine according to claim 5, wherein the sensor body (51) is provided with a mounting hole (51a), and the connecting lines between the blowing pipe (4) and the sensor probe (52) and the controller (3) pass through the mounting hole (51 a).
7. The bobbin thread detecting structure of a sewing machine according to claim 5, wherein a ventilation duct is molded on the sensor body (51), the blow pipe (4) is communicated with one end of the ventilation duct, the other end of the ventilation duct is positioned below the sensor probe (52) and the end is provided with a blow connector.
8. The lower thread detecting structure of a sewing machine according to claim 1 or 2, wherein the sensor assembly (5) is an optical fiber sensor; the controller (3) is fixedly arranged on a shell of the sewing machine, and the sensor probe (52) is connected with the controller (3) through an optical fiber line.
9. The lower 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 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 true CN114717759A (en) | 2022-07-08 |
| CN114717759B CN114717759B (en) | 2023-10-24 |
Family
ID=82233884
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 |
Country Status (1)
| Country | Link |
|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114717759B (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0907311B1 (en) | Sucked material detector, sucked material detecting method using the same detector, shift detecting method using the same detector, and cleaning method using the same detector | |
| CN114717759A (en) | Bottom thread detection structure of sewing machine | |
| US7390379B2 (en) | Method and apparatus for determining the lateral position of a web or fabric edge in a former | |
| CN212310291U (en) | Dust concentration sensor self-cleaning device | |
| US5389795A (en) | Method and apparatus for directing air and optical signals to detect edge cracks and other absences of product | |
| CN209798278U (en) | template machine and cleaning structure of bobbin thread detection sensor of sewing machine | |
| CN105661632A (en) | Airflow stabilization system of tobacco shred feeding tube | |
| KR920005790B1 (en) | Us/ fluid jet apparatus used to texture the yarn | |
| CN207170407U (en) | A kind of combustion furnace form passage blow device | |
| CN211112604U (en) | Antifouling device for preventing photoelectric bottom line from detecting pollution of sensor signal channel | |
| JP3244704U (en) | Automatic cleaning device for detection sensor and self-driving car | |
| CN209798269U (en) | Bottom thread allowance detection device and sewing machine | |
| CN209162390U (en) | A kind of sewing machine internal dust cleaning plant | |
| US3850025A (en) | Method of pneumatically controlling a thread or a thread bundle guided at right angles with respect to at least one airstream and apparatus for implementing the method | |
| CN108660624A (en) | A kind of baseline surplus testing agency of sewing machine | |
| JP2023547957A (en) | Cleaning device for cleaning the cover of optical equipment | |
| CN219327812U (en) | Antistatic three-way ball valve | |
| ATE369452T1 (en) | BLOW NOZZLE FOR SUPPORTING A WEFT THREAD IN A WEAVING MACHINE | |
| KR20210044886A (en) | Cleaning robot | |
| JP2678128B2 (en) | Ventilation equipment | |
| CN220540578U (en) | Adjustable water supply device for damping machine | |
| CN218996782U (en) | Box drain device, packaging structure and fuel cell system | |
| CN211402326U (en) | Miniature methane detector for vehicle | |
| CN218572729U (en) | Novel automatic spraying system pipe network water pressure real-time supervision device | |
| CN213577984U (en) | Automatic detection device for filter screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |