CN210759435U - Electrical control system of press machine - Google Patents
Electrical control system of press machine Download PDFInfo
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- CN210759435U CN210759435U CN201921257855.7U CN201921257855U CN210759435U CN 210759435 U CN210759435 U CN 210759435U CN 201921257855 U CN201921257855 U CN 201921257855U CN 210759435 U CN210759435 U CN 210759435U
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- normally open
- open contact
- intermediate relay
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Abstract
The utility model discloses a press electrical control system, including the pair solenoid valve, first auxiliary relay, second auxiliary relay, PLC, the arc extinguisher, switching power supply, first auxiliary relay, second auxiliary relay is respectively with PLC's output end signal connection, the normally closed contact of first auxiliary relay and the normally closed contact of second auxiliary relay establish ties the back with PLC's input signal connection, the coil contact of first auxiliary relay is two, the coil contact of second auxiliary relay is four and is connected with the switching power supply negative pole respectively, PLC's output common terminal and switching power supply positive pole are connected, first auxiliary relay is connected with second auxiliary relay interlocking, first auxiliary relay, second auxiliary relay is connected with pair solenoid valve and arc extinguisher respectively. The system adopts the duplex electromagnetic valve to replace the original pilot valve, when one electromagnetic valve of the duplex electromagnetic valve fails, the other electromagnetic valve can work, so that the dual protection effect is achieved, and the working stability and safety of the machine are improved.
Description
Technical Field
The utility model belongs to the technical field of electrical control and specifically relates to a press electrical control system is related to.
Background
When the electrical control system of the press machine adopts valve control mechanical action, the use of a pilot valve is usually taken as a main part, the pilot valve is respectively arranged on a brake and a clutch and is a normally closed valve, the two valves adopt a parallel connection mode and are controlled by a circuit, any one valve fails, and the other valve can not act, so that the brake of the press machine must be opened before the work, and then the clutch is combined, which is very inconvenient. And because single valve control for machinery work is unstable, and also has certain potential safety hazard.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem, the utility model aims at providing a press electrical control system improves press job stabilization nature and security.
The technical scheme is as follows: an electrical control system of a press machine comprises a duplex electromagnetic valve, a first intermediate relay, a second intermediate relay, a PLC, an arc extinguisher and a switch power supply, the first coil contact of the first intermediate relay and the third coil contact of the second intermediate relay are respectively in signal connection with the output end of the PLC, the normally closed contact of the first intermediate relay is connected with the normally closed contact of the second intermediate relay in series and then is in signal connection with the input end of the PLC, a coil contact II of the first intermediate relay and a coil contact IV of the second intermediate relay are respectively connected with the negative electrode of the switching power supply, the output common end of the PLC is connected with the anode of the switching power supply, the first intermediate relay is connected with the second intermediate relay in an interlocking way, the first intermediate relay and the second intermediate relay are respectively connected with the duplex solenoid valve and the arc extinguisher.
The original pilot valve is replaced by the duplex electromagnetic valve, and other electrical elements are correspondingly configured, so that the electrical control system can normally operate. In this system, when one of them solenoid valve of pair solenoid valve can't the return and be in when the air feed state always, another solenoid valve also can work, will give vent to anger under the normal operating conditions end compressed air and return to the gas vent, and then play a duplicate protection's effect, can not take off and not open and take place the incident because of the clutch, the arc extinguisher of installing additional can also prevent the injury of electric arc, further improves the security of system. The clutch acts by means of the valve body and the valve core of the duplex electromagnetic valve to realize the stable action of the press and the smooth switching of the forward and reverse rotation movement, and the PLC controls the duplex electromagnetic valve by the first intermediate relay and the second intermediate relay to enable the valve body and the valve core of the duplex electromagnetic valve to act.
Further, the first intermediate relay comprises a normally open contact I, a normally open contact II, a normally open contact III and a normally open contact IV which are arranged in pairs, and the second intermediate relay comprises a normally open contact V, a normally open contact VI, a normally open contact seven and a normally open contact eight which are arranged in pairs.
Furthermore, the first normally open contact and the eighth normally open contact are respectively connected with the extending end of the switch power supply, the fourth normally open contact is connected with the seventh normally open contact, the second normally open contact is connected with the fifth normally open contact, the duplex electromagnetic valve comprises two anodes, the third normally open contact and the sixth normally open contact are respectively connected with one anode of the duplex electromagnetic valve correspondingly, and the third normally open contact and the sixth normally open contact are respectively connected with the arc extinguisher.
Further, first auxiliary relay includes normally closed contact one, normally closed contact two, second auxiliary relay includes normally closed contact three, normally closed contact four, normally closed contact two with normally closed contact four is connected, normally closed contact three with PLC's input is connected, normally closed contact one is connected with 220V alternating current power supply's high voltage end, PLC's input common port with 220V alternating current power supply's low voltage end is connected. And the normally closed contact II is connected with the normally closed contact IV to realize the series connection of the first intermediate relay and the second intermediate relay.
Preferably, the switching power supply is a direct current 24V power supply.
Has the advantages that: compared with the prior art, the utility model has the advantages that: adopt the pair solenoid valve to replace original pilot valve, when one of them solenoid valve of pair solenoid valve can't the return and be in when air feed state all the time, another solenoid valve also can work, will give vent to anger under the normal operating conditions end compressed air and return to the gas vent, and then play a duplicate protection's effect, improve mechanical work stationarity and security.
Drawings
FIG. 1 is a schematic diagram of the signal connection of the present invention;
fig. 2 is an electrical wiring diagram of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
An electrical control system of a press machine is shown in figures 1 and 2 and comprises a duplex electromagnetic valve 1, a first intermediate relay 2, a second intermediate relay 3, a PLC4, an arc extinguisher 5 and a switching power supply 6.
The first intermediate relay 2 is an intermediate relay KA7, the first intermediate relay 2 comprises a coil contact I21, a coil contact II 22, a normally closed contact I27, a normally closed contact II 28, a normally open contact I23 and a normally open contact II 24 which are arranged in pairs, a normally open contact III 25 and a normally open contact IV 26, the second intermediate relay 3 is an intermediate relay KA8, the second intermediate relay 3 comprises a coil contact III 31, a coil contact IV 32, a normally closed contact III 37, a normally closed contact IV 38, a normally open contact V33 and a normally open contact VI 34 which are arranged in pairs, a normally open contact VII 35 and a normally open contact VIII 36, the coil contact I21 and the coil contact III 31 are respectively connected with the output end signals of the PLC4, the normally closed contact II 28 is connected with the normally closed contact IV 38, the normally closed contact III 37 is connected with the input end of the PLC4, the normally closed contact I27 is connected with the high-voltage end of the 220V alternating-current power supply, the input common end of the PLC4 is connected, switching power supply 6 is the direct current 24V power, coil contact two 22, coil contact four 32 is connected with switching power supply 6 negative pole respectively, PLC 4's output common port and switching power supply 6 are anodal to be connected, first auxiliary relay 2 is connected with second auxiliary relay 3 interlocking, normally open contact 23, normally open contact eight 36 is connected with switching power supply 6's the end that stretches out respectively, normally open contact four 26 is connected with normally open contact seven 35, normally open contact two 24 is connected with normally open contact five 33, pair solenoid valve 1 includes two anodals, normally open contact three 25, normally open contact six 34 corresponds respectively and is connected with a positive pole of pair solenoid valve 1, normally open contact three 25, normally open contact six 34 is connected with arc extinguisher 5 respectively.
The original pilot valve is replaced by the duplex electromagnetic valve, and other electrical elements are correspondingly configured, so that the electrical control system can normally operate. In this system, when one of them solenoid valve of pair solenoid valve can't the return and be in when the air feed state always, another solenoid valve also can work, will give vent to anger under the normal operating conditions end compressed air and return to the gas vent, and then play a duplicate protection's effect, can not take off and not open and take place the incident because of the clutch, the arc extinguisher of installing additional can also prevent the injury of electric arc, further improves the security of system. The clutch acts by means of the valve body and the valve core of the duplex electromagnetic valve to realize the stable action of the press and the smooth switching of the forward and reverse rotation movement, and the PLC controls the duplex electromagnetic valve by the first intermediate relay and the second intermediate relay to enable the valve body and the valve core of the duplex electromagnetic valve to act.
Claims (5)
1. An electrical control system of a press machine is characterized in that: the electromagnetic valve comprises a duplex electromagnetic valve, a first intermediate relay, a second intermediate relay, a PLC (programmable logic controller), an arc extinguisher and a switching power supply, wherein a coil contact I of the first intermediate relay and a coil contact III of the second intermediate relay are respectively connected with an output end signal of the PLC, a normally closed contact of the first intermediate relay is connected with a normally closed contact of the second intermediate relay in series and then is connected with an input end signal of the PLC, a coil contact II of the first intermediate relay and a coil contact IV of the second intermediate relay are respectively connected with a negative electrode of the switching power supply, an output public end of the PLC is connected with a positive electrode of the switching power supply, the first intermediate relay is connected with the second intermediate relay in an interlocking manner, and the first intermediate relay and the second intermediate relay are respectively connected with the duplex electromagnetic valve and the arc extinguisher.
2. An electrical control system for a press as claimed in claim 1, wherein: the first intermediate relay comprises a normally open contact I, a normally open contact II, a normally open contact III and a normally open contact IV which are arranged in pairs, and the second intermediate relay comprises a normally open contact V, a normally open contact VI, a normally open contact seven and a normally open contact eight which are arranged in pairs.
3. An electrical control system for a press as claimed in claim 2, wherein: the first normally open contact and the eighth normally open contact are respectively connected with the extending end of the switch power supply, the fourth normally open contact is connected with the seventh normally open contact, the second normally open contact is connected with the fifth normally open contact, the duplex solenoid valve comprises two anodes, the third normally open contact and the sixth normally open contact are respectively connected with one anode of the duplex solenoid valve, and the third normally open contact and the sixth normally open contact are respectively connected with the arc extinguisher.
4. An electrical control system for a press as claimed in claim 1, wherein: first auxiliary relay includes normally closed contact one, normally closed contact two, second auxiliary relay includes normally closed contact three, normally closed contact four, normally closed contact two with normally closed contact four is connected, normally closed contact three with PLC's input is connected, normally closed contact one is connected with 220V alternating current power supply's high voltage end, PLC's input common port with 220V alternating current power supply's low voltage end is connected.
5. An electrical control system for a press as claimed in claim 1, wherein: the switching power supply is a direct current 24V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921257855.7U CN210759435U (en) | 2019-08-05 | 2019-08-05 | Electrical control system of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921257855.7U CN210759435U (en) | 2019-08-05 | 2019-08-05 | Electrical control system of press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210759435U true CN210759435U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921257855.7U Active CN210759435U (en) | 2019-08-05 | 2019-08-05 | Electrical control system of press machine |
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| CN (1) | CN210759435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681489A (en) * | 2022-12-30 | 2023-02-03 | 苏州亚太精睿传动科技股份有限公司 | Electric interlocking control device and method for hydraulic system of transmission |
-
2019
- 2019-08-05 CN CN201921257855.7U patent/CN210759435U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681489A (en) * | 2022-12-30 | 2023-02-03 | 苏州亚太精睿传动科技股份有限公司 | Electric interlocking control device and method for hydraulic system of transmission |
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