CN203537362U - Self-cleaning photoelectric switch - Google Patents
Self-cleaning photoelectric switch Download PDFInfo
- Publication number
- CN203537362U CN203537362U CN201320606565.5U CN201320606565U CN203537362U CN 203537362 U CN203537362 U CN 203537362U CN 201320606565 U CN201320606565 U CN 201320606565U CN 203537362 U CN203537362 U CN 203537362U
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- China
- Prior art keywords
- pressure
- valve
- photoelectric switch
- optoelectronic switch
- self
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Abstract
The same sides of a photoelectric switch transmitting end and a photoelectric switch transmitting plate are respectively provided with a purging nozzle, wherein the purging nozzles are disposed at intervals, and are sequentially connected with a pressure-reducing valve, a solenoid valve, a hand-operated stop valve, and a light source through pipelines. The solenoid valve is connected with an electric control system which is used for controlling the on-off of an equipment switch. On-off signals of equipment are used for controlling the on-off of the solenoid valve.The pipelines between the purging nozzles and the pressure-reducing valve are provided with a pressure gauge. The pressure-reducing valve enables the pressure of an air passage to be adjusted to 0.2 MPa. The photoelectric switch provided by the utility model is simple in structure, is practical in function, is easy to install, irons out a defect that the signal misoperation of a self-reflection photoelectric switch in an environment full of dust, effectively eliminates the impact on a photoelectric tube from dust and sundries, improves the control precision of a constant-flow device in the environment full of dust and a severe occasion, avoids the abnormal cutoff caused by the misoperation of the photoelectric switch, and guarantees the stability of flow.
Description
Technical field
The utility model relates to a kind of self-cleaning optoelectronic switch.
Background technology
Constant flux control is mass flow to be carried out to the device of constant flux control, generally by controlling scale, forming with gauge line, the feeding machine of high-low-position optoelectronic switch.At present, majority for constant flow Material control is self-reflection type optoelectronic switch, this self-reflection type optoelectronic switch is applicable to environment local use preferably, be not suitable for the adverse circumstances that dust is larger, when material falls because dust sticks on self-reflection type optoelectronic switch transmitting terminal or reflecting plate compared with conference, cause optoelectronic switch to be blocked, cause fracture.
Utility model content
The utility model provides a kind of self-cleaning optoelectronic switch, is not only suitable for the good place of environment, is also suitable for dust compared with the place of the quiet deviation of rheum officinale, can avoid general self-reflection type optoelectronic switch at dust compared with the misoperation of overall situation signal.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: at optoelectronic switch transmitting terminal and optoelectronic switch reflecting plate homonymy spacing distance, arrange respectively and blow and spray clearly mouth, blow and spray clearly mouth and connect successively pressure-reducing valve, electromagnetically operated valve, hand stop valve, source of the gas by pipeline; Electromagnetically operated valve is connected with the electric-control system of control appliance switch, and equipment open and close signal is for controlling the open and close of battery valve.
On the pipeline blowing and spraying clearly between mouth and pressure-reducing valve, be also provided with Pressure gauge.
Pressure-reducing valve is adjusted to 0.2 MPa by gas circuit pressure.
The utility model is simple in structure, practical function, install simple and easy, overcome self-reflection type optoelectronic switch at dust compared with the defect of overall situation signal misoperation, effectively eliminate the impact of dust foreign material on photoelectric tube, improve dust compared with the control precision of the severe place of overall situation constant flow device, the abnormal out-reaches of avoiding optoelectronic switch misoperation to cause, have guaranteed the stable of flow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment: as shown in Figure 1, self-cleaning optoelectronic switch, at optoelectronic switch transmitting terminal 1 and optoelectronic switch reflecting plate 7 homonymy spacing distances, arrange respectively and blow and spray clearly mouth 2, blow and spray clearly mouth 2 and connect successively pressure-reducing valve 4, electromagnetically operated valve 5, hand stop valve 6, source of the gas 8 by pipeline; Electromagnetically operated valve 5 is connected with the electric-control system of control appliance switch, and equipment open and close signal is for controlling the open and close of battery valve 5.On the pipeline blowing and spraying clearly between mouth 2 and pressure-reducing valve 4, be also provided with Pressure gauge 3.Pressure-reducing valve 4 is adjusted to 0.2 MPa by gas circuit pressure.
Produce front opening compressed air hand stop valve 6, through pressure-reducing valve 4, gas circuit pressure is adjusted to 0.2 MPa, after device start, electric control system controls electromagnetically operated valve 5 is connected, compressed air is entered and is blowed and sprayed clearly mouth 2 by the compressed air pipe line of source of the gas, and high-low-position optoelectronic switch transmitting terminal and reflecting plate are cleaned.After equipment stops, electric control system controls electromagnetically operated valve 5 disconnects, and gas circuit no longer cleans optoelectronic switch.Close before leaving offices source of the gas hand stop valve 6 simultaneously.
The utility model is arranged on photoelectric tube place on the gauge line of electronic scale top, can solve the impact of dust and other impurities on photoelectric tube, and the abnormal out-reaches of avoiding optoelectronic switch misoperation to cause, can used compared with under rugged environment, has guaranteed the stable of flow.
Claims (3)
1. self-cleaning optoelectronic switch, is characterized in that: at optoelectronic switch transmitting terminal and optoelectronic switch reflecting plate homonymy spacing distance, arrange respectively and blow and spray clearly mouth, blow and spray clearly mouth and connect successively pressure-reducing valve, electromagnetically operated valve, hand stop valve, source of the gas by pipeline; Electromagnetically operated valve is connected with the electric-control system of control appliance switch, and equipment open and close signal is for controlling the open and close of battery valve.
2. self-cleaning optoelectronic switch according to claim 1, is characterized in that: on the pipeline blowing and spraying clearly between mouth and pressure-reducing valve, be also provided with Pressure gauge.
3. self-cleaning optoelectronic switch according to claim 2, is characterized in that: pressure-reducing valve is adjusted to 0.2 MPa by gas circuit pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606565.5U CN203537362U (en) | 2013-09-29 | 2013-09-29 | Self-cleaning photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320606565.5U CN203537362U (en) | 2013-09-29 | 2013-09-29 | Self-cleaning photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537362U true CN203537362U (en) | 2014-04-09 |
Family
ID=50423533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320606565.5U Expired - Lifetime CN203537362U (en) | 2013-09-29 | 2013-09-29 | Self-cleaning photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537362U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855239A (en) * | 2016-03-24 | 2016-08-17 | 中国海洋石油总公司 | Drilling tool screw thread connector cleaning tool and method |
| CN108689037A (en) * | 2018-06-06 | 2018-10-23 | 龙岩烟草工业有限责任公司 | Tobacco material-level detecting device and pipe tobacco feeder |
| CN112254753A (en) * | 2020-09-29 | 2021-01-22 | 河南中烟工业有限责任公司 | System capable of improving anti-interference capability of photoelectric switch |
-
2013
- 2013-09-29 CN CN201320606565.5U patent/CN203537362U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855239A (en) * | 2016-03-24 | 2016-08-17 | 中国海洋石油总公司 | Drilling tool screw thread connector cleaning tool and method |
| CN105855239B (en) * | 2016-03-24 | 2018-08-03 | 中国海洋石油集团有限公司 | A kind of thread of drilling tool connector cleaning means and cleaning method |
| CN108689037A (en) * | 2018-06-06 | 2018-10-23 | 龙岩烟草工业有限责任公司 | Tobacco material-level detecting device and pipe tobacco feeder |
| CN112254753A (en) * | 2020-09-29 | 2021-01-22 | 河南中烟工业有限责任公司 | System capable of improving anti-interference capability of photoelectric switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou Patentee after: CHINA TOBACCO HENAN INDUSTRIAL Co.,Ltd. Address before: 450000 Zhengzhou agricultural road, Henan, No. 29 Patentee before: CHINA TOBACCO HENAN INDUSTRIAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |