CN201330311Y - Sensor - Google Patents
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- Publication number
- CN201330311Y CN201330311Y CNU2008201450301U CN200820145030U CN201330311Y CN 201330311 Y CN201330311 Y CN 201330311Y CN U2008201450301 U CNU2008201450301 U CN U2008201450301U CN 200820145030 U CN200820145030 U CN 200820145030U CN 201330311 Y CN201330311 Y CN 201330311Y
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- CN
- China
- Prior art keywords
- optical fiber
- sensor
- incident optical
- reflective optical
- needle
- 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.)
- Expired - Lifetime
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Abstract
A sensor comprises a light source (3), an incident optical fiber (2) and a reflective optical fiber (4). The reflective optical fiber (4) is connected with a photoelectric conversion circuit (5); the photoelectric conversion circuit (5) is connected with a counter (6); focusing lenses (8) are arranged at the front ends of the incident optical fiber (2) and the reflective optical fiber (4) in the sensor; and a sheath (7) arranged on each focusing lens (8) is used for fixing the incident optical fiber (2) and the reflective optical fiber (4). The utility model has the following beneficial effects: in the sensor, the focusing lenses are arranged at the front ends of the optical fibers, thereby avoiding light scattering, leading light rays to be projected on a needle head more accurately and stably, and increasing the precision and accuracy of needle breaking detection, so as to not only avoid defective fabric caused by detection omission, guarantee product quality and reduce waste, but also avoid error shutdown caused by error action and improve the work efficiency of a loom.
Description
(1) technical field
The utility model relates to a kind of sensor, particularly relates to a kind of sensor that needle break of knitting frame detects that is used for.
(2) background technology
Knitting machine in weaving process the time regular meeting broken needle takes place, cause continuous fault to fabric, cause the waste of big content of starting materials.If can detect broken needle in time, just can avoid such loss.
The principle of existing needle-break detection device is: light source sends incident ray by fiber-optic illuminated on syringe needle, and the light that syringe needle reflects produces the signal of telecommunication by another root Optical Fiber Transmission to photoelectric switching circuit.Can not reflection ray when syringe needle fractures, also just can not export the signal of telecommunication.The signal of telecommunication is transferred to counter to be added up, and the knitting needle sum of the accumulative total of each circulation of knitting machine and input compares, and when accumulative total was total less than knitting needle, thinking had syringe needle to fracture, counter output control signal, and knitting machine stops.
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.
(3) summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of sensor that broken needle detects that is used for.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of sensor, comprise a light source, an incident optical, a mirror based fiber optica, and mirror based fiber optica connects a photoelectric switching circuit, and photoelectric switching circuit connects a counter.The incident optical of this sensor and the front end of mirror based fiber optica are provided with an amasthenic lens, and amasthenic lens is provided with a sheath, and sheath is fixed described incident optical and mirror based fiber optica simultaneously.
The course of work of this sensor is: the light that light source sends is radiated on the syringe needle by incident optical line focus camera lens, the light line focus camera lens that syringe needle reflects is transferred to photoelectric switching circuit by mirror based fiber optica and produces the signal of telecommunication, and the signal of telecommunication is transferred to counter to be added up.Can not reflection ray when syringe needle fractures, also just can not export the signal of telecommunication.The accumulative total of each circulation of knitting machine compares with the knitting needle sum of input in advance, and when accumulative total was total less than knitting needle, thinking had syringe needle to fracture, counter output control signal, and knitting machine stops.
The beneficial effects of the utility model are: this sensor is provided with amasthenic lens at the front end of optical fiber; avoided the scattering of light; light can more accurate, stably be radiated on the syringe needle; precision and accuracy rate that broken needle detects have been improved; can prevent that the fabric that causes because of omission is inferior, guarantee product quality, cut the waste; can prevent the mistakenly stop machine that causes because of misoperation again, improve the operating efficiency of loom.
(4) description of drawings
Fig. 1 is the structural representation of existing broken needle sensor.
Fig. 2 is the structural representation of the sensor of this programme.
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 counter, and 7 is sheath, and 8 is amasthenic lens.
(5) specific embodiment
As a kind of sensor of accompanying drawing, comprise light source 3, incident optical 2, mirror based fiber optica 4, mirror based fiber optica 4 connects photoelectric switching circuit 5, photoelectric switching circuit 5 linkage counters 6.The incident optical 2 of this sensor and the front end of mirror based fiber optica 4 are provided with amasthenic lens 8, and amasthenic lens 8 is provided with a sheath 7, and sheath 7 is fixing with incident optical 2 and mirror based fiber optica 4 simultaneously.
The focal length of described amasthenic lens 8 is 5～8 millimeters.
Claims (1)
1, a kind of sensor, comprise light source (3), incident optical (2), mirror based fiber optica (4), mirror based fiber optica (4) connects photoelectric switching circuit (5), photoelectric switching circuit (5) linkage counter (6), it is characterized in that: the front end of incident optical of this sensor (2) and mirror based fiber optica (4) is provided with amasthenic lens (8), amasthenic lens (8) is provided with a sheath (7), and sheath (7) is fixing with incident optical (2) and mirror based fiber optica (4) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201450301U CN201330311Y (en) | 2008-12-29 | 2008-12-29 | Sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201450301U CN201330311Y (en) | 2008-12-29 | 2008-12-29 | Sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330311Y true CN201330311Y (en) | 2009-10-21 |
Family
ID=41223687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201450301U Expired - Lifetime CN201330311Y (en) | 2008-12-29 | 2008-12-29 | Sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330311Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225166A (en) * | 2013-04-23 | 2013-07-31 | 慈溪太阳洲纺织科技有限公司 | Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine |
| 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 |
-
2008
- 2008-12-29 CN CNU2008201450301U patent/CN201330311Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225166A (en) * | 2013-04-23 | 2013-07-31 | 慈溪太阳洲纺织科技有限公司 | Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine |
| 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 |
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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: 20091021 |
|
| 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 |