CN201662870U - Operation safety protection warning device - Google Patents
Operation safety protection warning device Download PDFInfo
- Publication number
- CN201662870U CN201662870U CN2010201442425U CN201020144242U CN201662870U CN 201662870 U CN201662870 U CN 201662870U CN 2010201442425 U CN2010201442425 U CN 2010201442425U CN 201020144242 U CN201020144242 U CN 201020144242U CN 201662870 U CN201662870 U CN 201662870U
- Authority
- CN
- China
- Prior art keywords
- relay
- scram button
- safety protection
- air switch
- connection terminal
- 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 - Fee Related
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Abstract
The utility model relates to an operation safety protection warning device, which consists of a scram button, an air switch, a relay, a warner and a connection terminal, wherein the air switch connected with the scram button is connected with the relay which is connected with the warmer; and the relay is connected with a power supply and an external main control computer logic programmable controller by the connection terminal. When the scram button is pressed down, the warner carries out lamp flashing warning and simultaneously the relay switches off a PLC control circuit to enable a scrap conveying chain not to be started again, thus, other operating personnel on site cannot randomly press the cram button and even a remote PLC operator carries out misoperation, and the scrap conveying chain also cannot be started so as to eliminate potential safety hazard fundamentally. The operation safety protection warning device has the advantages of simple structure and flexible and reliable operation and has popularization and use values.
Description
Technical field
The utility model belongs to security protection utensil field, be specifically related to a kind of on steel rolling mill's waste material conveyer chain the security protection alarming device during operation.
Background technology
Scale on the Heavy Plate Plant finishing production line is cut the rear portion and is provided with waste material conveyer chain, so that the steel plate under the cutting to length is transferred out end to end.Waste material conveyer chain is controlled by main control computer logic programming controller (being called for short PLC), and conveyer chain is anxious stops defence program owing to be not provided with in the PLC, so waste material conveyer chain under any circumstance all can't realize the anxious interlock protection that stops.But,,, so just need the site work personnel to cut and extract the steel plate operation of sample end to end on the waste material conveyer chain at scale to the quality inspection that the steel plate after rolling must be correlated with according to the requirement of quality inspection.Under the normal condition, waste material conveyer chain need shut down when sampling, restarts after the sampling again.But because PLC is far away apart from waste material conveyer chain distance, bad if in a single day operating personnel and sampling personnel get in touch affirmation, just will cause the maloperation of conveyer chain and cause the generation of personal injury accident.
Summary of the invention
The purpose of this utility model aims to provide a kind of simple, can effectively control waste material conveyer chain and send security warning, thereby the security protection alarming device of personal injury accident takes place when avoiding taking a sample operation.
For this reason, the technical scheme taked of the utility model is:
A kind of job safety protection alarming device is made up of scram button, air switch, relay, attention device and connection terminal; The air switch that connects scram button links to each other with the relay that is connected attention device, and relay connects power supply and external piloting control program logic computer controller by connection terminal.
The sampling personnel only need press scram button before sampling, when then attention device carried out the light flash caution, the actuating of relay disconnected the PLC control loop, and waste material conveyer chain can not be started once more, and the sampling personnel open scram button after the sampling operation is finished.Owing to be provided with the light flash caution, make on-the-spot other operating personnels the phenomenon of scram button can not occur arbitrarily pressing; And disconnect the PLC control loop, even make the operating personnel of far-end maloperation occur, waste material conveyer chain also can not start, thereby has fundamentally eliminated potential safety hazard, can stop to produce personal injury accident fully.The utility model is simple in structure, and it is reliable to be active in one's movements, and is suitable for being provided with the operation place use of security warning and automatic safe protection, has general popularizing value.
Description of drawings
Accompanying drawing is a job safety protection alarming device elementary diagram.
Among the figure: ZK is an air switch, and LA is a scram button, and K is a relay, and HD is an attention device, and PLC is an external piloting control program logic computer controller.
Embodiment
Below, in conjunction with the accompanying drawings the utility model is described further.
The job safety protection alarming device of the utility model mainly is made up of scram button LA, air switch ZK, relay K, attention device HD and connection terminal.Air switch ZK, relay K and connection terminal are located in the control box, and attention device HD and scram button LA are installed in outside the control box.Scram button LA connects air switch ZK, air switch ZK is connected with relay K, relay K links to each other with outside PLC with attention device HD respectively again, by connection terminal scram button LA, air switch ZK, relay K, attention device HD is connected with the 220V AC power.
Press scram button LA before the sampling operation, then relay K action, relay K is made war closed, and normally closed point disconnects.Attention device HD is when carrying out the light flash caution, and pilot relay K action disconnects the PLC control loop, and waste material conveyer chain can not be started once more; After finishing to the operation of taking a sample, the sampling personnel open scram button, and attention device HD stops flicker, and waste material conveyer chain restarts.
Claims (1)
1. a job safety protection alarming device is characterized in that, is made up of scram button, air switch, relay, attention device and connection terminal; The air switch that connects scram button links to each other with the relay that is connected attention device, and relay connects power supply and external piloting control program logic computer controller by connection terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442425U CN201662870U (en) | 2010-03-30 | 2010-03-30 | Operation safety protection warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442425U CN201662870U (en) | 2010-03-30 | 2010-03-30 | Operation safety protection warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662870U true CN201662870U (en) | 2010-12-01 |
Family
ID=43233288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201442425U Expired - Fee Related CN201662870U (en) | 2010-03-30 | 2010-03-30 | Operation safety protection warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529747A (en) * | 2013-10-24 | 2014-01-22 | 中铁隧道集团有限公司 | Fault handling system of drill jumbo |
| CN104834262A (en) * | 2014-12-31 | 2015-08-12 | 浙江吉利汽车有限公司 | Automobile stamping production line and scrap line interconnected control protection device and method |
-
2010
- 2010-03-30 CN CN2010201442425U patent/CN201662870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529747A (en) * | 2013-10-24 | 2014-01-22 | 中铁隧道集团有限公司 | Fault handling system of drill jumbo |
| CN104834262A (en) * | 2014-12-31 | 2015-08-12 | 浙江吉利汽车有限公司 | Automobile stamping production line and scrap line interconnected control protection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20160330 |