CN202639145U - Safety switch interlocking controller - Google Patents
Safety switch interlocking controller Download PDFInfo
- Publication number
- CN202639145U CN202639145U CN 201220314972 CN201220314972U CN202639145U CN 202639145 U CN202639145 U CN 202639145U CN 201220314972 CN201220314972 CN 201220314972 CN 201220314972 U CN201220314972 U CN 201220314972U CN 202639145 U CN202639145 U CN 202639145U
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- time relay
- coil
- auxiliary reclay
- normally
- relay
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Abstract
A safety switch interlocking controller comprises a switch SW1, a switch SW2, a first intermediate relay, a second intermediate relay, a third intermediate relay, a first time relay, a second time relay, a third time relay and a solenoid valve. A coil of the first intermediate relay is connected with the switch SW1 after in parallel connection with a coil of the first time relay, and a coil of the second intermediate relay is connected with the switch SW2 after in parallel connection with a coil of the second time relay. A normally-closed contact of the first time relay, a normally-closed contact of the second time relay, a normally-open contact of the first intermediate relay, a normally-open contact of the second intermediate relay, a coil of the third time relay and a normally-closed contact of the third time relay are connected in sequence, the coil of the third time relay is further in parallel connection with a coil of the third intermediate relay, and a normally-open contact of the third intermediate relay is connected with the solenoid valve. The safety switch interlocking controller can reduce potential safety hazards and guarantees safety of the working environment.
Description
Technical field
The utility model relates to the control circuit of safety switch, and it is applied in the starting switch of all kinds of pneumatic, electric punchs.
Background technology
Fig. 1 is the schematic diagram of the control circuit of traditional punch press biswitch, the staff is when operation, both hands are Push switch SW100, interrupteur SW 200 simultaneously, the equal conducting of coil KA of the coil KT of the time relay, auxiliary reclay, the normally opened contact KA-1 of two series connection of auxiliary reclay, normally opened contact KA-2 are closed, connect magnetic valve, thereby make punch press work, the normally-closed contact KJ of time relay KT can disconnect in the scheduled time, finished a punch press operation.Yet existing control circuit does not have fool-proof design, can not avoid line short or switch connection and causes punch press to jerk and cause the accident, and does not consider in violation of rules and regulations shorting switch of staff yet, and the situation of singlehanded operation causes industrial accident easily.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to propose the chain controller of a kind of safety switch, and it can solve the potential safety hazard that prior art produces.
In order to achieve the above object, the technical scheme that adopts of the utility model is as follows:
The chain controller of safety switch is characterized in that, comprises interrupteur SW 1, interrupteur SW 2, the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay, very first time relay, second time relay, the 3rd time relay and magnetic valve; Be connected with interrupteur SW 1 after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay, the free end of interrupteur SW 1 is connected with live wire, and the free end after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay is connected with zero line; Be connected with interrupteur SW 2 after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay, the free end of interrupteur SW 2 is connected with live wire, and the free end after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay is connected with zero line; The normally opened contact KA1 of the normally-closed contact KJ1 of very first time relay, the normally-closed contact KJ2 of second time relay, the first auxiliary reclay, the normally opened contact KA2 of the second auxiliary reclay, the coil KT3 of the 3rd time relay, the normally-closed contact KJ3 of the 3rd time relay connect successively, and the coil KT3 of the 3rd time relay also is connected in parallel with the coil KA3 of the 3rd auxiliary reclay, the free end of the normally-closed contact KJ1 of very first time relay also is connected with live wire, and the normally-closed contact KJ3 of the 3rd time relay also is connected with zero line; The coil KA3 of the 3rd auxiliary reclay also normally opened contact KA3-1 by the 3rd auxiliary reclay is connected with live wire, the normally opened contact KA3-2 of the 3rd auxiliary reclay be connected between live wire and the zero line after magnetic valve is connected in series.
As preferred structure, magnetic valve also is connected in parallel with a counter.
The utlity model has following beneficial effect:
Because when human factor or non-artificial factor cause two safety switch SW1 or SW2 closure to surpass a scheduled time, the normally-closed contact KJ1 of very first time relay or the normally-closed contact KJ2 of second time relay disconnect, punch press can not continue operation again, must make interrupteur SW 1 and interrupteur SW 2 all keep original position could continue operation, thereby the reduction potential safety hazard guarantees staff's operation in the working environment of safety.
Description of drawings
Fig. 1 is the schematic diagram of the control circuit of traditional punch press biswitch;
Fig. 2 is the principle schematic of the chain controller of safety switch of the utility model preferred embodiment.
Wherein, among Fig. 2, L is the live wire of power line, and N is the zero line of power line.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further, so that clearerly understand the utility model technological thought required for protection.
As shown in Figure 2, the chain controller of safety switch, it comprises interrupteur SW 1, interrupteur SW 2, the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay, very first time relay, second time relay, the 3rd time relay, magnetic valve and counter.
Be connected with interrupteur SW 1 after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay, the free end of interrupteur SW 1 is connected with live wire, and the free end after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay is connected with zero line; Be connected with interrupteur SW 2 after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay, the free end of interrupteur SW 2 is connected with live wire, and the free end after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay is connected with zero line; The normally opened contact KA1 of the normally-closed contact KJ1 of very first time relay, the normally-closed contact KJ2 of second time relay, the first auxiliary reclay, the normally opened contact KA2 of the second auxiliary reclay, the coil KT3 of the 3rd time relay, the normally-closed contact KJ3 of the 3rd time relay connect successively, and the coil KT3 of the 3rd time relay also is connected in parallel with the coil KA3 of the 3rd auxiliary reclay, the free end of the normally-closed contact KJ1 of very first time relay also is connected with live wire, and the normally-closed contact KJ3 of the 3rd time relay also is connected with zero line; The coil KA3 of the 3rd auxiliary reclay also the normally opened contact KA3-1 by the 3rd auxiliary reclay be connected with live wire, the normally opened contact KA3-2 of the 3rd auxiliary reclay be connected between live wire and the zero line after magnetic valve is connected in series.Magnetic valve also is connected in parallel with a counter.
The course of work of present embodiment is as follows:
The coil KA2 of the coil KA1 of Push switch SW1 and interrupteur SW 2, the first auxiliary reclays, the coil KT1 of very first time relay, the second auxiliary reclay, the coil KT2 conducting of second time relay; The normally opened contact KA1 of the first auxiliary reclay, the normally opened contact KA2 of the second auxiliary reclay are closed, the coil KA3 conducting of the coil KT3 of the 3rd time relay, the 3rd auxiliary reclay (the normally-closed contact KJ1 of very first time relay, the normally-closed contact KJ2 of second time relay disconnect in the given time); The normally opened contact KA3 of the 3rd auxiliary reclay is closed, and solenoid valve conduction also starts the punch press action, and the normally-closed contact KJ3 of the 3rd time relay disconnected in the scheduled time, finished a punch press operation.
Because when human factor or non-artificial factor cause interrupteur SW 1 or SW2 closure to surpass a scheduled time, the normally-closed contact KJ1 of very first time relay or the normally-closed contact KJ2 of second time relay disconnect, punch press can not continue operation again, must make interrupteur SW 1 and interrupteur SW 2 all keep original position could continue operation, thereby the reduction potential safety hazard guarantees staff's operation in the working environment of safety.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection domain of the utility model claim all.
Claims (2)
1. the chain controller of safety switch, it is characterized in that, comprise interrupteur SW 1, interrupteur SW 2, the first auxiliary reclay, the second auxiliary reclay, the 3rd auxiliary reclay, very first time relay, second time relay, the 3rd time relay and magnetic valve; Be connected with interrupteur SW 1 after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay, the free end of interrupteur SW 1 is connected with live wire, and the free end after the coil KT1 parallel connection of the coil KA1 of the first auxiliary reclay and very first time relay is connected with zero line; Be connected with interrupteur SW 2 after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay, the free end of interrupteur SW 2 is connected with live wire, and the free end after the coil KT2 parallel connection of the coil KA2 of the second auxiliary reclay and second time relay is connected with zero line; The normally opened contact KA1 of the normally-closed contact KJ1 of very first time relay, the normally-closed contact KJ2 of second time relay, the first auxiliary reclay, the normally opened contact KA2 of the second auxiliary reclay, the coil KT3 of the 3rd time relay, the normally-closed contact KJ3 of the 3rd time relay connect successively, and the coil KT3 of the 3rd time relay also is connected in parallel with the coil KA3 of the 3rd auxiliary reclay, the free end of the normally-closed contact KJ1 of very first time relay also is connected with live wire, and the normally-closed contact KJ3 of the 3rd time relay also is connected with zero line; The coil KA3 of the 3rd auxiliary reclay also normally opened contact KA3-1 by the 3rd auxiliary reclay is connected with live wire, the normally opened contact KA3-2 of the 3rd auxiliary reclay be connected between live wire and the zero line after magnetic valve is connected in series.
2. the chain controller of safety switch as claimed in claim 1 is characterized in that, magnetic valve also is connected in parallel with a counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314972 CN202639145U (en) | 2012-06-29 | 2012-06-29 | Safety switch interlocking controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314972 CN202639145U (en) | 2012-06-29 | 2012-06-29 | Safety switch interlocking controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639145U true CN202639145U (en) | 2013-01-02 |
Family
ID=47408323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220314972 Expired - Fee Related CN202639145U (en) | 2012-06-29 | 2012-06-29 | Safety switch interlocking controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267620A (en) * | 2014-08-28 | 2015-01-07 | 东莞市大忠电子有限公司 | Double-hand starting circuit |
-
2012
- 2012-06-29 CN CN 201220314972 patent/CN202639145U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267620A (en) * | 2014-08-28 | 2015-01-07 | 东莞市大忠电子有限公司 | Double-hand starting circuit |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 523711, No. 9, upstart Road, Lin Town, Tangxia Town, Guangdong, Dongguan Patentee after: CHUROD ELECTRONICS CO., LTD. Address before: Tangxia Zhen Lin village in Guangdong province Dongguan city 523711 New Road No. 9 Patentee before: Dongguan Churod Electronics Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 523711, No. 20, upstart Road, Lin Town, Tangxia Town, Guangdong, Dongguan Patentee after: CHUROD ELECTRONICS CO., LTD. Address before: 523711, No. 9, upstart Road, Lin Town, Tangxia Town, Guangdong, Dongguan Patentee before: CHUROD ELECTRONICS CO., LTD. |
|
| 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: 20130102 Termination date: 20170629 |