CN104267620A - Double-hand starting circuit - Google Patents
Double-hand starting circuit Download PDFInfo
- Publication number
- CN104267620A CN104267620A CN201410430242.4A CN201410430242A CN104267620A CN 104267620 A CN104267620 A CN 104267620A CN 201410430242 A CN201410430242 A CN 201410430242A CN 104267620 A CN104267620 A CN 104267620A
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- China
- Prior art keywords
- switch
- relay
- starting
- branch road
- normally opened
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
Abstract
The invention relates to the technical field of industrial production safety, in particular to a double-hand starting circuit. The double-hand starting circuit comprises a first starting switch S1, a second starting switch S2, a starting controller, a first switch, a second switch, a normally closed delay switch and a delay controller, wherein the first starting switch S1 and the second starting switch S2 are operated by people, the starting controller starts controlled equipment when powered on, closing of the first starting switch S1 triggers the first switch to close, and closing of the second starting switch S2 triggers the second switch to close; the delay switch, the first switch, the second switch and the starting controller are connected in series to form a starting branch connected between a firing line and a null line; the delay controller triggers starting of timing when one of the starting switches S1 and S2 is closed, and the delay switch is switched off when timing reaches a preset time.
Description
Technical field
The present invention relates to commercial production security technology area, be specifically related to a kind of both hands start-up circuit, workman needs both hands starting outfit, thus avoids hand to be crushed.
Background technology
Factory work safety first, the security of operation is the emphasis that enterprise is concerned about forever, careless slightlyly during the many main equipments of operative very easily occurs security incident, and threaten the personal safety of workman, the pressing equipment of crawl single cycle operation is exactly like this.The pressing equipment of crawl single cycle operation in the past adopts single start button to start, pattern of reckoning by the piece is adopted owing to being permitted factoried employee compensation at present, part workman is in order to take higher wage, usually managerial personnel's not risk operation in violation of rules and regulations in case can all be taken advantage of, a hand-held product another hand presses start button starting outfit, thus raising output, only self-dependent agility of selling is avoided crushing in the process.But workman after a period of operation health is easily tired, when especially working at night, release speed can be more and more slower, is very easy to occur that stamping jig is pressed onto the security incident of hand, causes personal injury.
In order to avoid the generation of this kind of situation, just the mode that original single start button starts is changed into the mode of double startup pushbutton enable, namely on original start-up circuit, a starting switch of connecting with original starting switch is increased, only closed ability starting outfit after two starting switches are all pressed, make to force workman with the hands to press two start buttons respectively, thus avoid the hand of workman to be crushed by equipment.But, adopt the mode of this double startup pushbutton enable that the hand of employee still could not be avoided to be weighed wounded by equipment, because part workman uses adhesive tape or other things by one of them button tighten, make it be in conducting state, then a hand-held product another hand carries out operation by start button starting outfit always.It can thus be appreciated that the potential safety hazard that the hand-held product another hand of workman one brings by start button starting outfit do not removed by the both hands start-up circuit that existing employing two starting switches carry out starting outfit.
Summary of the invention
For solving the problems referred to above of prior art, the invention provides a kind of both hands start-up circuit, it can avoid workman one of them starting switch to be fixed on the situation appearance of closure state and singlehanded starting outfit, can remove the potential safety hazard that the hand-held product another hand of workman one brings by start button starting outfit.
For achieving the above object, the invention provides following technical scheme.
Both hands start-up circuit, comprise the first starting switch S1 for people's operation and the second starting switch S2, also comprise start-up connector, start-up connector obtains electric, starts controlled plant, also comprise the first switch and second switch, first starting switch S1 closes triggering first switch and closes, and the closed second switch that triggers of the second starting switch S2 closes; Normally closed delay switch, itself and the first switch, second switch are connected to be formed and are started branch road together with start-up connector, are connected between live wire and zero line; Delay controller, its two starting switches S1, S2 one of them closed time trigger and start timing, the full Preset Time of timing then disconnects described delay switch.
Wherein, comprise relay K M1, relay K M2 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, the normally opened contact KM2-2 of relay K M2 is as second switch, time relay KT1 is as delay switch controller, the normally closed contact KT1-1 of time relay KT1 is as delay switch, relay K M1 and relay K M2 is also respectively equipped with normally opened contact KM1-1 and normally opened contact KM2-1, the coils connected in series of the first starting switch S1 and relay K M1, forms the first starting switch branch road; The coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road; Connect with time relay KT1 again after the normally opened contact KM1-1 of relay K M1 and the normally opened contact KM2-1 parallel connection of relay K M2, form time delay branch road; First starting switch branch road, the second starting switch branch road and time delay branch road are connected across between live wire and zero line respectively.
Wherein, comprise relay K M1, relay K M2 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, the normally opened contact KM2-2 of relay K M2 is as second switch, time relay KT1 is as delay switch controller, the normally closed contact KT1-1 of time relay KT1 is as delay switch, and the coils connected in series of the first starting switch S1 and relay K M1, forms first and start branch road; The coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road; First starts branch road and second starts coils connected in series with time relay KT1 after branch circuit parallel connection, and form time delay branch road, time delay branch road is connected across between live wire and zero line.
Wherein, start branch road and also comprise for disconnecting the emergency stop switch S3 starting branch road, emergency stop switch S3 connects with the first switch, second switch, delay switch and start-up connector.
Wherein, also comprise relay K M3, relay K M3 is as start-up connector, relay K M3 comprises normally opened contact KM3-1 and normally opened contact KM3-2, first switch, second switch and delay switch are connected as starting switch group successively, the normally opened contact KM3-1 of relay K M3 is connected across between the two ends of starting switch group, is connected between live wire and zero line after the normally opened contact KM3-2 of relay K M3 and controlled plant series connection.
The invention has the beneficial effects as follows: at startup branch road, delay switch is set, two starting switches one of them be pressed closed after, the delay switch controller controlling delay switch just starts timing, only before the full Preset Time of timing, pressing another starting switch makes it close, start branch road just conducting, thus startup controlled plant, if one of them starting switch is fixed on closure state by workman, control delay switch when then Preset Time is expired in delay switch controller timing to disconnect, even if so rear workman presses another starting switch closed again, starting branch road also can not conducting, controlled plant also can not be activated, so workman's hand just can be forced must to press another starting switch in Preset Time by another hand after next starting switch, controlled plant could be started and carry out production operation, thus both hands are placed in operating table surface when ensureing that workman starts controlled plant operation, avoid the situation appearance that one of them starting switch is fixed on closure state and singlehanded startup controlled plant by workman, relieve the potential safety hazard that the hand-held product another hand of workman one brings by start button startup controlled plant.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the both hands start-up circuit of embodiment 1.
Fig. 2 is the circuit theory diagrams of the both hands start-up circuit of embodiment 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
Embodiment 1
As shown in Figure 1, the both hands start-up circuit of the present embodiment, comprise relay K M1, KM2, KM3 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, the normally opened contact KM2-2 of relay K M2 is as second switch, relay K M3 is as start-up connector, time relay KT1 is as delay switch controller, the normally closed contact KT1-1 of time relay KT1 is as delay switch, relay K M1 and relay K M2 is also respectively equipped with normally opened contact KM1-1 and normally opened contact KM2-1, the coils connected in series of the first starting switch S1 and relay K M1, form the first starting switch branch road, the coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road, connect with time relay KT1 again after the normally opened contact KM1-1 of relay K M1 and the normally opened contact KM2-1 parallel connection of relay K M2, form time delay branch road, the normally opened contact KM1-2 of relay K M1, the normally opened contact KM2-2 of relay K M2, the normally closed contact KT1-1 of time relay KT1, the coil of emergency stop switch S3 and relay K M3 are connected successively, are formed and start branch road, first starting switch branch road, the second starting switch branch road, time delay branch road and startup branch road are connected across between live wire and zero line respectively, between the contact that the normally opened contact KM3-1 of relay K M3 is connected across time relay KT1-1 and emergency stop switch S3 and live wire, be connected across between live wire and zero line after the normally opened contact KM3-2 of relay K M3 connects with equipment M, wherein equipment M is controlled plant.
As shown in Figure 1, starting switch S1 and S2 one of them be pressed closed after, the coil of the relay K M1 connected with it or the coil of relay K M2 obtain electric, then two normally opened contacts of this relay are by adhesive, normally opened contact KM1-1 and KM1-2 is by adhesive, or normally opened contact KM2-1 and KM2-2 is by adhesive, because normally opened contact KM1-1 and KM2-1 is in parallel, as long as one in them by adhesive, the coil of time relay KT1 will obtain electric, time relay KT1 obtain electric after start timing, namely the full 2S of timing controls its normally closed contact KT1-1 and disconnects, therefore, only when another starting switch is pressed closed before the full 2S of time relay KT1 timing, normally opened contact KM1-2 and KM2-2 is just by adhesive, because the normally closed contact KT1-1 of now time relay KT1 not yet disconnects, the coil of relay K M3 obtains electric, normally opened contact KM3-2 is by adhesive, equipment M has just been activated, normally opened contact KM3-1 is also by adhesive, even if control its normally closed contact KT1-1 after the full 2S of after this time relay KT1 timing to disconnect, the coil of relay K M3 still can via emergency stop switch S3 with by normally opened contact KM3-1 conducting between live wire and zero line of adhesive, thus allow equipment M continuous firing.If another starting switch is not still pressed closed in one of them closed rear 2S that is pressed of starting switch S1 and S2, normally closed contact KT1-1 just can controlledly disconnect, even if after this another starting switch is pressed closed, although normally opened contact KM1-2 and KM2-2 is all by adhesive, but because normally closed contact KT1-1 disconnects, relay K M3 can not obtain electric, and its normally opened contact KM3-2 just can not by adhesive, and equipment M also would not be activated.
Embodiment 2
As shown in Figure 2, the both hands start-up circuit of the present embodiment, comprise relay K M1, KM2, KM3 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, and the normally opened contact KM2-2 of relay K M2 is as second switch, and relay K M3 is as start-up connector, time relay KT1 is as delay switch controller, its normally closed contact KT1-1 is as delay switch, and the coils connected in series of the first starting switch S1 and relay K M1, forms first and start branch road; The coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road; First starts branch road and second starts coils connected in series with time relay KT1 after branch circuit parallel connection, forms time delay branch road; The normally opened contact KM1-2 of relay K M1, the normally opened contact KM2-2 of relay K M2, the normally closed contact KT1-1 of time relay KT1, the coil of emergency stop switch S3 and relay K M3 are connected successively, are formed and start branch road; Time delay branch road and startup branch road are connected across between live wire and zero line respectively, between the contact that the normally opened contact KM3-1 of relay K M3 is connected across time relay KT1-1 and emergency stop switch S3 and live wire, be connected across between live wire and zero line after the normally opened contact KM3-2 of relay K M3 connects with equipment M, wherein equipment M is controlled plant.
As shown in Figure 2, starting switch S1 and S2 one of them be pressed closed after, the coil of the relay K M1 connected with it or the coil of relay K M2 obtain electric, the normally opened contact of this relay is by adhesive, namely normally opened contact KM1-2 is by adhesive, or normally opened contact KM2-2 is by adhesive, meanwhile, the coil of time relay KT1 also electric, time relay KT1 obtain electric after start timing, namely the full 2S of timing controls its normally closed contact KT1-1 and disconnects, therefore, only when another starting switch is pressed closed before the full 2S of time relay KT1 timing, normally opened contact KM1-2 and KM2-2 is just by adhesive, because the normally closed contact KT1-1 of now time relay KT1 not yet disconnects, the coil of relay K M3 obtains electric, normally opened contact KM3-2 is by adhesive, equipment M has just been activated, normally opened contact KM3-1 is also by adhesive, even if control its normally closed contact KT1-1 after the full 2S of after this time relay KT1 timing to disconnect, the coil of relay K M3 still can via emergency stop switch S3 with by normally opened contact KM3-1 conducting between live wire and zero line of adhesive, thus allow equipment M continuous firing.If another starting switch is not still pressed closed in one of them closed rear 2S that is pressed of starting switch S1 and S2, normally closed contact KT1-1 just can controlledly disconnect, even if after this another starting switch is pressed closed, although normally opened contact KM1-2 and KM2-2 is all by adhesive, but because normally closed contact KT1-1 disconnects, relay K M3 can not obtain electric, and its normally opened contact KM3-2 just can not by adhesive, and equipment M also would not be activated.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (5)
1. both hands start-up circuit, comprise the first starting switch S1 for people's operation and the second starting switch S2, also comprise start-up connector, start-up connector obtains electric, starts controlled plant, it is characterized in that, also comprises:
First switch and second switch, the first starting switch S1 closes triggering first switch and closes, and the closed second switch that triggers of the second starting switch S2 closes;
Normally closed delay switch, itself and the first switch, second switch are connected to be formed and are started branch road together with start-up connector, are connected between live wire and zero line;
Delay controller, its two starting switches S1, S2 one of them closed time trigger and start timing, the full Preset Time of timing then disconnects described delay switch.
2. both hands start-up circuit according to claim 1, it is characterized in that, comprise relay K M1, relay K M2 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, the normally opened contact KM2-2 of relay K M2 is as second switch, time relay KT1 is as delay switch controller, the normally closed contact KT1-1 of time relay KT1 is as delay switch, relay K M1 and relay K M2 is also respectively equipped with normally opened contact KM1-1 and normally opened contact KM2-1, the coils connected in series of the first starting switch S1 and relay K M1, form the first starting switch branch road, the coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road, connect with time relay KT1 again after the normally opened contact KM1-1 of relay K M1 and the normally opened contact KM2-1 parallel connection of relay K M2, form time delay branch road, first starting switch branch road, the second starting switch branch road and time delay branch road are connected across between live wire and zero line respectively.
3. both hands start-up circuit according to claim 1, it is characterized in that, comprise relay K M1, relay K M2 and time relay KT1, the normally opened contact KM1-2 of relay K M1 is as the first switch, the normally opened contact KM2-2 of relay K M2 is as second switch, and time relay KT1 is as delay switch controller, and the normally closed contact KT1-1 of time relay KT1 is as delay switch, the coils connected in series of the first starting switch S1 and relay K M1, forms first and starts branch road; The coils connected in series of the second starting switch S2 and relay K M2, forms the second starting switch branch road; First starts branch road and second starts coils connected in series with time relay KT1 after branch circuit parallel connection, and form time delay branch road, time delay branch road is connected across between live wire and zero line.
4. both hands start-up circuit according to claim 1, is characterized in that, start branch road and also comprise for disconnecting the emergency stop switch S3 starting branch road, emergency stop switch S3 connects with the first switch, second switch, delay switch and start-up connector.
5. the both hands start-up circuit according to claim 1-4 any one, it is characterized in that, also comprise relay K M3, relay K M3 is as start-up connector, relay K M3 comprises normally opened contact KM3-1 and normally opened contact KM3-2, first switch, second switch and delay switch are connected as starting switch group successively, and the normally opened contact KM3-1 of relay K M3 is connected across between the two ends of starting switch group, are connected between live wire and zero line after the normally opened contact KM3-2 of relay K M3 and controlled plant series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430242.4A CN104267620A (en) | 2014-08-28 | 2014-08-28 | Double-hand starting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430242.4A CN104267620A (en) | 2014-08-28 | 2014-08-28 | Double-hand starting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN104267620A true CN104267620A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430242.4A Pending CN104267620A (en) | 2014-08-28 | 2014-08-28 | Double-hand starting circuit |
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| CN (1) | CN104267620A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990722A (en) * | 2016-01-21 | 2017-07-28 | 上海大众联合发展车身配件有限公司 | A kind of bimanualness platform synchronous operation set |
| CN108262545A (en) * | 2016-12-30 | 2018-07-10 | 上海朗仕电子设备有限公司 | A kind of interim start stop apparatus of reflow soldering guipure |
| CN108385724A (en) * | 2018-04-26 | 2018-08-10 | 厦门精图信息技术有限公司 | A kind of pipe gallery safety management system |
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN110576170A (en) * | 2019-10-23 | 2019-12-17 | 广东宝洋科技有限公司 | Die-casting machine die-assembly safety control method, storage device and die-assembly safety control system |
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| CN201754233U (en) * | 2010-06-25 | 2011-03-02 | 江苏国力锻压机床有限公司 | Double-handed time delay control circuit for station of two mobile buttons |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990722A (en) * | 2016-01-21 | 2017-07-28 | 上海大众联合发展车身配件有限公司 | A kind of bimanualness platform synchronous operation set |
| CN108262545A (en) * | 2016-12-30 | 2018-07-10 | 上海朗仕电子设备有限公司 | A kind of interim start stop apparatus of reflow soldering guipure |
| CN108385724A (en) * | 2018-04-26 | 2018-08-10 | 厦门精图信息技术有限公司 | A kind of pipe gallery safety management system |
| CN108385724B (en) * | 2018-04-26 | 2023-06-09 | 厦门精图信息技术有限公司 | Comprehensive pipe rack safety management system |
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
| CN110576170A (en) * | 2019-10-23 | 2019-12-17 | 广东宝洋科技有限公司 | Die-casting machine die-assembly safety control method, storage device and die-assembly safety control system |
| CN110576170B (en) * | 2019-10-23 | 2021-10-12 | 广东宝洋科技有限公司 | Die-casting machine die-assembly safety control method, storage device and die-assembly safety control system |
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Application publication date: 20150107 |