CN2792646Y - Safe protector of punching equipment - Google Patents
Safe protector of punching equipment Download PDFInfo
- Publication number
- CN2792646Y CN2792646Y CN 200520031029 CN200520031029U CN2792646Y CN 2792646 Y CN2792646 Y CN 2792646Y CN 200520031029 CN200520031029 CN 200520031029 CN 200520031029 U CN200520031029 U CN 200520031029U CN 2792646 Y CN2792646 Y CN 2792646Y
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- China
- Prior art keywords
- circuit
- pressing equipment
- time
- normally closed
- holding circuit
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- Expired - Fee Related
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Abstract
The utility model relates to a safety protector of stamping equipment, which comprises an optoelectronic inductive protective circuit. A contact of a microswitch is arranged at the tail end of a slide block at a return stroke on stamping equipment. The power end of the optoelectronic inductive protective circuit is combined and connected into a return stroke open circuit composed of the microswitch and a delay relay which are connected in series, and a normally closed switch of the delay relay is connected in series to a power cord. The utility model can has the action of effective protection, can cut off the optoelectronic inductive protective circuit in the process of the slide block at return stroke and can effectively improve production efficiency. The utility model has the advantages of simple structure, low cost, less power consumption, superior performance and safe use.
Description
Technical field
The utility model relates to a kind of pressing equipment protector.
Background technology
Pressing equipment did not mostly have any safety guard in the past, all was artificial control, was easy to have an accident; Even some is equipped with safety precautions, but exist cost higher, influence production efficiency, use shortcomings such as inconvenience.A kind of pressing equipment protector had appearred afterwards; its circuit mainly comprises power supply, is attempted by the photoelectric sensor switch of both ends of power, is attempted by the relay between positive source and the photoelectric sensor switch output; the normally closed switch of relay seals in the power circuit of pressing equipment, and photoelectric sensor switch is arranged between pressing equipment and the operator.Though this pressing equipment protector has solved safety problem; but in the backhaul of pressing equipment top shoe; holding circuit is still effective; if this moment is when fractureing the light beam of photoelectric sensor switch; pressing equipment still can be out of service; and in the top shoe backhaul, the operator is safe from danger, there is no need to shut down at all, so just greatly reduce production efficiency.
The utility model content
The utility model purpose is to provide a kind of pressing equipment protector that can raise the efficiency.
To achieve these goals; the utility model adopts following technical scheme: a kind of pressing equipment protector; comprise the optoelectronic induction holding circuit; tail end in the backhaul of pressing equipment top shoe is provided with the microswitch contact; incorporate the backhaul disconnecting circuit that is in series by microswitch and time-delay relay at above-mentioned optoelectronic induction holding circuit power end, and on power line, seal in the normally closed switch of time-delay relay.
Also be in series with the normally closed switch of optoelectronic induction holding circuit repeat circuit in the described backhaul disconnecting circuit.
In the pressing equipment power circuit, seal in the normally closed switch of the optoelectronic induction holding circuit relay of two parallel connections.
The delay time of described time-delay relay equals single pass time that the top shoe punching press moves down.
This pressing equipment protector can play effective protective effect, and cuts off the optoelectronic induction protection circuit in sliding block backhaul process, effectively raises production efficiency.And volume is little, in light weight, and fault rate simple in structure is low, and cost is lower, and power consumption is less, and superior performance is safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the main loop circuit schematic diagram;
Fig. 3 is the control loop circuit theory diagrams.
The specific embodiment
Embodiment: a kind of as Figure 1-3 pressing equipment protector; comprise the optoelectronic induction holding circuit; tail end in the backhaul of pressing equipment top shoe is provided with microswitch XK contact; incorporate the backhaul disconnecting circuit that the normally closed switch J1 by microswitch 8, time-delay relay coil S, optoelectronic induction holding circuit repeat circuit is in series at above-mentioned optoelectronic induction holding circuit power end, and on power line, seal in the normally closed switch S1 of time-delay relay.Seal in normally closed switch J2, the J3 of the optoelectronic induction holding circuit relay of two parallel connections in the pressing equipment power circuit, the delay time of time-delay relay equals single pass time that top shoe 3 punching presses move down.Promptly working as top shoe 3 can make microswitch 8 contacts open in the time of the backhaul tail end; when putting into stamping parts top shoe 3 and move down punching press; microswitch 8 closures; it is the XK closure; time relay S begins energising; since the time relay delay time equal single pass time that top shoe 3 punching presses move down; so when sliding block moves down when preparing backhaul after the punching press object is finished; normally closed some S1 of the time relay opens; this moment, the outage of optoelectronic induction holding circuit was not dangerous during backhaul, so photoelectric sensor circuit lost efficacy; even the light beam of operator's blocking light electric switch can not cause shutdown yet, improved operating efficiency greatly.After sliding block 3 backhauls, open microswitch 8 again, optoelectronic induction holding circuit restitution.
Left side dotted portion belongs to the pressing equipment part among Fig. 2, and the right dotted portion belongs to the protector part.
R1 is that fuse plays the holding circuit effect, and D1 is the power supply indication of holding circuit, and D2 is the main circuit power indicator lamp, and transformation is after rectifier bridge W and filter capacitor C flow to downstream circuitry.R1, R2 are power safety, and T is a slide block action electromagnetic valve coil.
Photoelectric protection part chief component has many groups photoelectric sensor switch 2 of being attempted by both ends of power, is attempted by the relay between positive source and photoelectric sensor switch 2 outputs.Many group photoelectric sensor switch 2 are installed between the mould of operator and pressing equipment 1 relatively, form a separation net of forming by infrared ray 7 light beams in the space between operator and top shoe 3, sliding block 4, the receiving tube of photoelectric sensor switch 2 is high level because of the irradiation that is subjected to transmitting tube makes its output under the normal condition, so relay J is failure to actuate, its normally closed some J1, J2, J3 conducting, equipment can operate as normal.Relay and other circuit block are contained in the protection box 5.When any Ray Of Light of accepting when the receiving tube of photoelectric sensor switch G1-G12 is blocked; just can make its output become low level; to the coil electricity adhesive that makes relay J; J1; J2; J3 disconnects; cut off mould slide block down magnetic valve loop; the pressing equipment power circuit of electric appliance box 6 the insides disconnects; make slide block static immediately; also be in series with protection indicator lamp D3-D6 in the holding circuit on each photoelectric sensor switch circuit; the normal open switch J4 of relay J and alarm series connection are in parallel then as holding circuit; alarm buzzer F sender reminds the operator that protection is opened, when arm when promptly all light beams are not blocked in the forbidden zone system can recover normal at once.The quantity of photoelectric sensor switch 2 can suitably increase and decrease according to actual conditions, is as the criterion meeting the demands.Main box and annex can be fixed with permanent magnet, make conveniently moving, and mounting means is versatile and flexible.
When using, turn on the power switch K, the transformer B work of switch on, indicator lamp D1 is bright, the work of optoelectronic switch G1-G12 energising simultaneously, formation grating net between people and workpiece.
When hand is taken workpiece, when blocking any a branch of grating, the optoelectronic switch action; make the D3-D6 indicator lamp bright, the work of relay coil J energising simultaneously, the normally closed point of J2, J3 disconnects; cut off slide block action power of electromagnetic valve, slide block is quit work, thereby the adversary plays a protective role.Simultaneously the J4 closure of often making war makes buzzer F obtain electric sounding prompting.The J1 normally-closed contact disconnects, break time relay coil S power circuit, guarantee to protect the loop can be safe and reliable.
Under the normal condition, microswitch XK closure when sliding block 3 moves down makes time relay coil S obtain by the normally closed point of J1; its normally closed some S1 disconnects when sliding block 3 walks to bottom dead centre; the power supply of J and G1-G12 all is cut off, and the optoelectronic induction holding circuit quits work, and can increase work efficiency this moment.Get back in the top dead-centre process when sliding block, protective device can not start, and therefore can increase work efficiency.When slide block was got back to top dead-centre, XK disconnected, the S dead electricity, and the S1 closure, the optoelectronic induction holding circuit is got back to the work armed state again.
The output of electric appliance box 5 leads is 12V safety low-voltage, can effectively avoid the contact accident to take place, and all available permanent magnet of optoelectronic switch and lead is fixed, and can adjust the position arbitrarily, and safe ready is flexibly quick; All adopt plug-in unit to connect between electric appliance box 5, optoelectronic switch 2, the microswitch 8, be convenient to maintenance.
Claims (4)
1, a kind of pressing equipment protector; comprise the optoelectronic induction holding circuit; it is characterized in that: the tail end in the backhaul of pressing equipment top shoe is provided with the microswitch contact; incorporate the backhaul disconnecting circuit that is in series by microswitch and time-delay relay at above-mentioned optoelectronic induction holding circuit power end, and on power line, seal in the normally closed switch of time-delay relay.
2, pressing equipment protector according to claim 1 is characterized in that: the normally closed switch that also is in series with optoelectronic induction holding circuit repeat circuit in the described backhaul disconnecting circuit.
3, protector according to claim 1 and 2 is characterized in that: the normally closed switch that seals in the optoelectronic induction holding circuit relay of two parallel connections in the pressing equipment power circuit.
4, pressing equipment protector according to claim 3 is characterized in that: the delay time of described time-delay relay equals single pass time that the top shoe punching press moves down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031029 CN2792646Y (en) | 2005-06-20 | 2005-06-20 | Safe protector of punching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031029 CN2792646Y (en) | 2005-06-20 | 2005-06-20 | Safe protector of punching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2792646Y true CN2792646Y (en) | 2006-07-05 |
Family
ID=36819798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031029 Expired - Fee Related CN2792646Y (en) | 2005-06-20 | 2005-06-20 | Safe protector of punching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2792646Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972824A (en) * | 2010-11-04 | 2011-02-16 | 姚政 | Automatic protection device of punching machine |
| CN107978464A (en) * | 2018-01-11 | 2018-05-01 | 钱立文 | The matched aluminum hull punching machine automatic transport control system of production capacity |
-
2005
- 2005-06-20 CN CN 200520031029 patent/CN2792646Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972824A (en) * | 2010-11-04 | 2011-02-16 | 姚政 | Automatic protection device of punching machine |
| CN107978464A (en) * | 2018-01-11 | 2018-05-01 | 钱立文 | The matched aluminum hull punching machine automatic transport control system of production capacity |
| CN107978464B (en) * | 2018-01-11 | 2019-04-02 | 钱立文 | The matched automatic transport control system of aluminum hull punching machine of production capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |