CN201428043Y - Sensor with dustproof device - Google Patents
Sensor with dustproof device Download PDFInfo
- Publication number
- CN201428043Y CN201428043Y CN2009200974056U CN200920097405U CN201428043Y CN 201428043 Y CN201428043 Y CN 201428043Y CN 2009200974056 U CN2009200974056 U CN 2009200974056U CN 200920097405 U CN200920097405 U CN 200920097405U CN 201428043 Y CN201428043 Y CN 201428043Y
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- sheath
- sensor
- optical fiber
- focusing lens
- incident optical
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Abstract
A sensor with a dustproof device comprises an incident optical fiber (2), a light source (3), a reflective optical fiber (4), a photoelectric conversion circuit (5), a sheath (9) and a focusing lens (10); the light source (3) is mounted at the rear end of the incident optical fiber (2); the reflective optical fiber (4) is connected with the photoelectric conversion circuit (5); the other ends of the incident optical fiber (2) and the reflective optical fiber (4) are inducted and fixed at the rear end of the sheath (9); and the focusing lens (10) is mounted at the front end of the sheath (9). Acompressed air spray nozzle (8) is arranged at the front end of the focusing lens (10) of the sensor; and the compressed air spray nozzle (8) is fixed through a fixing part (7) arranged on the sheath(9). The sensor has the beneficial effects that the compressed air forms an air barrier at the front end of the focusing lens, thereby preventing cotton batting, fiber hair feather and dust from collecting and falling on the focusing lens; and the rays can irradiate at the needle head more accurately and stably, thereby improving the detection precision of the broken needle and ensuring the product quality.
Description
(1) technical field
The utility model relates to a kind of sensor, particularly relates to a kind of sensor that has dust guard that needle break of knitting frame detects that is used for.
(2) background technology
The principle of existing needle-break detection device is: the light that light source sends is radiated on the syringe needle by incident optical, and the light that syringe needle reflects is transferred to photoelectric switching circuit by mirror based fiber optica and produces the signal of telecommunication.Can not reflection ray when syringe needle fractures, also just can not export the signal of telecommunication.
Syringe needle diameter minimum is 0.3 millimeter, and incident ray is a scattered light, and in order to improve light utilization efficiency, the fiber distance syringe needle can not surpass 0.5 millimeter, and the slight variation of mounting distance will have a strong impact on the intensity that receives light.Therefore alignment error or machine vibration will cause the output signal instability, cause misoperation.
Weak point at the sensor, the applicant has done some improvement, end at incident optical and mirror based fiber optica is provided with amasthenic lens, and has proposed utility application on December 29th, 2008 to State Intellectual Property Office, and application number is 200820145030.1.
In actual applications, the applicant finds, because knitting machine can produce a lot of cotton-wools or fiber filoplume in the braiding process, colony has influenced the precision that detects on the amasthenic lens of sensor.
(3) summary of the invention
The purpose of this utility model is in order to solve the cotton-wool of colony on the sensor amasthenic lens or the problem of fiber filoplume influence detection precision, a kind of sensor that has dust guard to be provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of sensor that has dust guard comprises incident optical, light source, mirror based fiber optica, photoelectric switching circuit, sheath and amasthenic lens.Light source is installed in the rear end of incident optical, and mirror based fiber optica is connected with photoelectric switching circuit, and the other end of incident optical and mirror based fiber optica is introduced the rear end of sheath and fixed, and amasthenic lens is installed in the front end of sheath.The amasthenic lens front end of this sensor is provided with a compressed-air atomizer, and compressed-air atomizer is fixed by the fixture that is arranged on the sheath.
The other end of described compressed-air atomizer is connected on the compressed air pump of knitting machine.
This sensor is connected on the signal processor and uses.
The beneficial effects of the utility model are: compressed air forms air curtain at the front end of amasthenic lens, prevent that cotton-wool, fiber filoplume and dust colony are on amasthenic lens, avoided these foreign material covering to amasthenic lens, light can more accurate, stably be radiated on the syringe needle, precision and accuracy rate that broken needle detects have been improved, thereby the assurance product quality, reduced waste, improved the operating efficiency of loom.
(4) description of drawings
Accompanying drawing is the structural representation of the sensor that has dust guard of this programme.
Reference numeral among the figure: 1 is syringe needle, and 2 is incident optical, and 3 is light source, and 4 is mirror based fiber optica, and 5 is photoelectric switching circuit, and 6 is signal processor, and 7 is fixture, and 8 is compressed-air atomizer, and 9 is sheath, and 10 is amasthenic lens.
(5) specific embodiment
Below in conjunction with accompanying drawing this programme is described further.
The sensor that has dust guard of this programme is made of incident optical 2, light source 3, mirror based fiber optica 4, photoelectric switching circuit 5, sheath 9 and amasthenic lens 10.
In order to prevent cotton-wool, fiber filoplume and dust colony on amasthenic lens 10, the sensor of this programme is provided with a compressed-air atomizer 8 at amasthenic lens 10 front ends, and compressed-air atomizer 8 is fixing by the fixture 7 that is arranged on the sheath 9.The other end of compressed-air atomizer 8 is connected on the compressed air pump of knitting machine.
The course of work of this sensor is: the light that light source 3 sends is radiated on the syringe needle 1 by incident optical 2 and line focus camera lens 10, and its reflection ray is line focus camera lens 10 and pass to photoelectric switching circuit 5 by mirror based fiber optica 4 and produce the signals of telecommunication again.Photoelectric switching circuit 5 is connected on the signal processor 6, and the signal of telecommunication of its generation is handled by signal processor 6, sends instruction by signal processor 6 to loom.When loom was switched on, the compressed air pump on it was opened thereupon, and compressed air is by compressed-air atomizer 8 ejections, to prevent that the foreign material colony is on amasthenic lens 10.
Claims (1)
1, a kind of sensor that has dust guard, comprise incident optical (2), light source (3), mirror based fiber optica (4), photoelectric switching circuit (5), sheath (9) and amasthenic lens (10), light source (3) is installed in the rear end of incident optical (2), mirror based fiber optica (4) is connected with photoelectric switching circuit (5), the other end of incident optical (2) and mirror based fiber optica (4) is introduced the rear end of sheath (9) and is fixed, amasthenic lens (10) is installed in the front end of sheath (9), it is characterized in that: the amasthenic lens of this sensor (10) front end is provided with a compressed-air atomizer (8), and compressed-air atomizer (8) is fixing by the fixture (7) that is arranged on the sheath (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200974056U CN201428043Y (en) | 2009-06-29 | 2009-06-29 | Sensor with dustproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200974056U CN201428043Y (en) | 2009-06-29 | 2009-06-29 | Sensor with dustproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428043Y true CN201428043Y (en) | 2010-03-24 |
Family
ID=42031774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200974056U Expired - Lifetime CN201428043Y (en) | 2009-06-29 | 2009-06-29 | Sensor with dustproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428043Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116581A (en) * | 2010-12-27 | 2011-07-06 | 苏州新长光热能科技有限公司 | Discharging detection protective device |
| CN106521798A (en) * | 2016-12-05 | 2017-03-22 | 泉州佰源机械科技股份有限公司 | Intelligent needle measuring instrument mechanism for circular knitting machine |
| CN106592093A (en) * | 2016-12-09 | 2017-04-26 | 广东华中科技大学工业技术研究院 | Control system and method for knitting missed stitches of a flat knitting machine on the basis of machine vision |
| CN108411486A (en) * | 2018-05-31 | 2018-08-17 | 福建中织源网络科技有限公司 | A kind of large circle machine and its survey yarn of external connecting function module are long, survey knitting needle method |
-
2009
- 2009-06-29 CN CN2009200974056U patent/CN201428043Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116581A (en) * | 2010-12-27 | 2011-07-06 | 苏州新长光热能科技有限公司 | Discharging detection protective device |
| CN106521798A (en) * | 2016-12-05 | 2017-03-22 | 泉州佰源机械科技股份有限公司 | Intelligent needle measuring instrument mechanism for circular knitting machine |
| CN106592093A (en) * | 2016-12-09 | 2017-04-26 | 广东华中科技大学工业技术研究院 | Control system and method for knitting missed stitches of a flat knitting machine on the basis of machine vision |
| CN106592093B (en) * | 2016-12-09 | 2018-07-27 | 广东华中科技大学工业技术研究院 | A kind of control system and method for the cross machine knitting dropped stitch detection based on machine vision |
| CN108411486A (en) * | 2018-05-31 | 2018-08-17 | 福建中织源网络科技有限公司 | A kind of large circle machine and its survey yarn of external connecting function module are long, survey knitting needle method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Min Document name: Notification of Expiration of Patent Right Duration |
|
| DD01 | Delivery of document by public notice |