CN204381250U - The safety return circuit device of punch press - Google Patents
The safety return circuit device of punch press Download PDFInfo
- Publication number
- CN204381250U CN204381250U CN201420842313.7U CN201420842313U CN204381250U CN 204381250 U CN204381250 U CN 204381250U CN 201420842313 U CN201420842313 U CN 201420842313U CN 204381250 U CN204381250 U CN 204381250U
- Authority
- CN
- China
- Prior art keywords
- magnetic valve
- restarting
- gauge tap
- punch press
- switch
- 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 discloses the safety return circuit device of punch press, comprise control transformer power supply and be connected on the emergency stop switch of control transformer both ends of power, bimanualness switch, slide block adjustment switch, running device switch, photoelectric safety device, OFF mode switch, duplex magnetic valve operating switches and RUN gauge tap, also include restarting magnetic valve, relay and restarting and prevent magnetic valve.The utility model forms restarting control loop and latching circuit by setting up magnetic valve on punch press control transformer power circuit, thus make punch press when working properly avoid restarting, avoid the danger of duplex magnetic valve automatic pick, thus it is safer that punch press is produced.Further this circuit coordinates the software security in PLC program to control, thus can achieve lock-in control, and namely general safety double loop controls, and punch press is produced more safe and reliable.
Description
Technical field
The utility model relates to punching machine safety design field, particularly relates to the safety return circuit device of punch press.
Background technology
Traditional punch press duplex magnetic valve is generally all present in urgency and stops above loop; if anxious various urgency of stopping above loop stop gauge tap when all not pressing; then duplex electromagnetic valve coil can be in electriferous state always; if now produce bonding phenomenon between duplex magnetic valve auxiliary reclay contact; thus cause duplex magnetic valve automatic pick; this is for abnormally dangerous scene, and serious harm is to the safety of employee and production plant area.
Utility model content
The purpose of this utility model is to provide the safety return circuit device of punch press, solves the unsafe factor above existing electric wiring, makes punch press operation safer.
The utility model adopts following technical proposals:
The safety return circuit device of punch press, comprise control transformer power supply and the emergency stop switch being connected on control transformer both ends of power, bimanualness switch, slide block adjustment switch, running device switch, photoelectric safety device, OFF mode switch, duplex magnetic valve operating switches and RUN gauge tap, described RUN gauge tap comprises the RUN gauge tap be connected in series, 2nd RUN gauge tap, 3rd RUN gauge tap and the 4th RUN gauge tap, also include restarting magnetic valve, relay and restarting prevent magnetic valve, coil and the duplex magnetic valve operating switches of described restarting magnetic valve are in parallel, first normally opened contact of restarting magnetic valve and the 2nd RUN gauge tap, 3rd RUN gauge tap and the 4th RUN gauge tap are in parallel, described restarting prevents the coils connected in series of magnetic valve in control transformer power circuit, and the output of restarting magnetic valve connects the input of PLC, the output of PLC connects the input of relay coil, one end of relay normally open contact connects the tie point of bimanualness switch and emergency stop switch, and other end connecting secondary starts the tie point of magnetic valve and duplex magnetic valve operating switches.
Described relay is time-delay relay.
Described duplex magnetic valve two ends are also parallel with Resistor-Capacitor Unit.
Described Resistor-Capacitor Unit comprises resistance and the electric capacity of series connection.
The utility model forms restarting control loop and latching circuit by setting up magnetic valve on punch press control transformer power circuit, thus make punch press when working properly avoid restarting, avoid the danger of duplex magnetic valve automatic pick, thus it is safer that punch press is produced.Further this circuit coordinates the software security in PLC program to control, thus can achieve lock-in control, and namely general safety double loop controls, and punch press is produced more safe and reliable.
Accompanying drawing explanation
Fig. 1 is electrical structure schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, the safety return circuit device of punch press, comprise control transformer power supply 1 and the emergency stop switch 2 being connected on control transformer power supply 1 two ends, bimanualness switch 3, slide block adjustment switch 5, running device switch 7, photoelectric safety device 6, OFF mode switch 8, duplex magnetic valve operating switches 19 and RUN gauge tap, described RUN gauge tap comprises the RUN gauge tap 9 be connected in series, 2nd RUN gauge tap 10, 3rd RUN gauge tap 11 and the 4th RUN gauge tap 12, also include restarting magnetic valve 18, relay J K and restarting prevent magnetic valve 20, coil and the duplex magnetic valve operating switches 19 of described restarting magnetic valve 18 are in parallel, the normally opened contact 13 of duplex magnetic valve operating switches 19 and the 2nd RUN gauge tap 10, 3rd RUN gauge tap 11 and the 4th RUN gauge tap 12 are in series, described restarting prevents the coils connected in series of magnetic valve 20 in control transformer power circuit, and the output of restarting magnetic valve connects the input of PLC, the output of PLC connects the input of relay J K coil, and relay J K normally opened contact 14 controls restarting and prevents magnetic valve 20.
Described relay J K is time-delay relay.Described duplex magnetic valve two ends are also parallel with Resistor-Capacitor Unit, and described Resistor-Capacitor Unit comprises resistance and the electric capacity of series connection, described Resistor-Capacitor Unit can absorbing coil divide, anti-gesture voltage when closing, make circuit safer.
During normal work, bimanualness switch 3 described in the utility model directly starts restarting magnetic valve 18 by the anxious main control loop (i.e. above-mentioned control transformer electric power loop) stopping loop, because restarting magnetic valve 18 obtains electric, its normally opened contact 13 closes, then now the 2nd RUN gauge tap 10, 3rd RUN gauge tap 11 and the 4th RUN gauge tap 12 open circuit, simultaneously, it is electric that restarting prevents the coil of magnetic valve 20 from obtaining, then transmit a signal to PLC, PLC then sends control signals to time-delay relay JK after obtaining CRANK PULSES, the normally opened contact 14 of time-delay relay JK is closed after time delay certain hour, after the normally opened contact 14 of time-delay relay JK is closed, then now bimanualness switch 3 is invalid, other control duplex magnetic valve operating switches 19 action to stop anxious signal etc. then effective, now punch press action can only carry out action for the action of original PLC programming.It is existing programme-control, and concrete course of action repeats no more, and now the utility model can not carry out restarting, and secondary start-up circuit enters the free operating state be perfectly safe, and centre can coordinate the control of PLC to make the action of punch press meet production requirement.
In concrete the present embodiment in conjunction with original punch press PLC parameters be example illustrate: PLC control under, when slide block bent axle current angle value is spent at (0-190), duplex magnetic valve operating switches 19 is directly allowed to be in running by restarting magnetic valve 18, now the normally opened contact 15 of duplex magnetic valve operating switches 19 closes, cross 220-240 when spending, directly restarting will be disconnected by restarting magnetic valve 18, even if bimanualness switch 3 is pressed by you so always, also the action of duplex magnetic valve operating switches 19 can not be had influence on, spend in scope at current angle value at (190-360), the reliability of recycling mechanical cam, by controlling a RUN gauge tap 9, 2nd RUN gauge tap 10, 3rd RUN gauge tap 11 and the 4th RUN gauge tap 12, realize unclamping bimanualness switch 3 after bottom dead centre crossed by punch press, automatically push up under pacifying a pattern and be parked in top dead-centre, PLC also carries out programme-control to the mode of operation under peace one pattern simultaneously, thus reach duplicate protection, described peace one pattern is one of mode of operation of existing punch press.
Claims (4)
1. the safety return circuit device of punch press, comprise control transformer power supply and the emergency stop switch being connected on control transformer both ends of power, bimanualness switch, slide block adjustment switch, running device switch, photoelectric safety device, OFF mode switch, duplex magnetic valve operating switches and RUN gauge tap, described RUN gauge tap comprises the RUN gauge tap be connected in series, 2nd RUN gauge tap, 3rd RUN gauge tap and the 4th RUN gauge tap, it is characterized in that: also include restarting magnetic valve, relay and restarting prevent magnetic valve, coil and the duplex magnetic valve operating switches of described restarting magnetic valve are in parallel, first normally opened contact of restarting magnetic valve and the 2nd RUN gauge tap, 3rd RUN gauge tap and the 4th RUN gauge tap are in parallel, described restarting prevents the coils connected in series of magnetic valve in control transformer power circuit, and the output of restarting magnetic valve connects the input of PLC, the output of PLC connects the input of relay coil, one end of relay normally open contact connects the tie point of bimanualness switch and emergency stop switch, and other end connecting secondary starts the tie point of magnetic valve and duplex magnetic valve operating switches.
2. the safety return circuit device of punch press according to claim 1, is characterized in that: described relay is time-delay relay.
3. the safety return circuit device of punch press according to claim 2, is characterized in that: described duplex magnetic valve two ends are also parallel with Resistor-Capacitor Unit.
4. the safety return circuit device of punch press according to claim 3, is characterized in that: described Resistor-Capacitor Unit comprises resistance and the electric capacity of series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842313.7U CN204381250U (en) | 2014-01-14 | 2014-12-25 | The safety return circuit device of punch press |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020511 | 2014-01-14 | ||
| CN2014200205115 | 2014-01-14 | ||
| CN201420842313.7U CN204381250U (en) | 2014-01-14 | 2014-12-25 | The safety return circuit device of punch press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204381250U true CN204381250U (en) | 2015-06-10 |
Family
ID=53354005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420842313.7U Expired - Fee Related CN204381250U (en) | 2014-01-14 | 2014-12-25 | The safety return circuit device of punch press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204381250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958160A (en) * | 2018-08-24 | 2018-12-07 | 东莞市铭科精技五金制品有限公司 | A kind of punching machine bivalve detects safety circuit automatically |
-
2014
- 2014-12-25 CN CN201420842313.7U patent/CN204381250U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958160A (en) * | 2018-08-24 | 2018-12-07 | 东莞市铭科精技五金制品有限公司 | A kind of punching machine bivalve detects safety circuit automatically |
| CN108958160B (en) * | 2018-08-24 | 2023-08-11 | 铭科精技控股股份有限公司 | Automatic detection safety circuit for double valves of punching machine |
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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 |
Granted publication date: 20150610 Termination date: 20201225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |