CN102990032A - Control circuit of support roller type centrifugal casting machine - Google Patents
Control circuit of support roller type centrifugal casting machine Download PDFInfo
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- CN102990032A CN102990032A CN2012105734642A CN201210573464A CN102990032A CN 102990032 A CN102990032 A CN 102990032A CN 2012105734642 A CN2012105734642 A CN 2012105734642A CN 201210573464 A CN201210573464 A CN 201210573464A CN 102990032 A CN102990032 A CN 102990032A
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Abstract
The utility model relates to a control circuit of a support roller type centrifugal casting machine, which comprises a PLC (Programmable logic Controller) module with analog quantity input, digital input and digital output, a power supply, a centrifuge, a frequency converter, a water injector, a spray coating device, a travel switch, a time relay, a plurality of sensors, a plurality of command input switches and a plurality of relay switches, wherein the power supply is used for supplying power for the PLC module, the centrifuge, the frequency converter, the water injector, the spray coating device and the sensors; the digital input of the PLC module is used for collecting the on-off state signals of the command input switch, the travel switch and the time relay; the digital output of the PLC module is used for outputting the on-off state signals collected by the digital input to the frequency converter and the relay switch; and the analog input of the PLC module is used for transferring the analog signals of pressure and flow of cooling water collected by the sensors, mold temperature signals and molten iron temperature signals when pouring to a CPU (Central Processing Unit). The control circuit is high in degree of automation and simple and convenient to operate.
Description
Technical field
The present invention relates to the Centrifuge Techniques field, relate in particular to a kind of control circuit of roller-type centrifugal casting machine.
Background technology
In the metal casting industry, for realizing the burr layer of foundry goods outer wall, to in the die cavity of centrifugal casting mould, cover a coating, so that the mould casting outer wall has one deck burr, and the pipe fitting of cast molding need to utilize a cover cooling system to cool off in centrifuge, and traditional type of cooling is: to the mould cooling of spraying water.If the flow-control of cooling water is improper, may occur crossing the low phenomenon that affects the unstable product quality of subsequent production because human factor causes mold temperature.A kind of spray equipment course of work of rolling type centrifugal casting machine is: the forward dolly, base is moved towards centrifugal casting mould, and drive coating bar extend in the die cavity of centrifugal casting mould gradually, rotate simultaneously centrifugal casting mould, the shower nozzle that is connected to the coating club head begins spraying, thereby forms coating in the die cavity of centrifugal casting mould.Spray complete after, the counter-rotating dolly makes base back mobile, the coating bar drives shower nozzle and withdraws from from the die cavity of centrifugal casting mould.If this course of work adopts manual operation, troublesome poeration, production efficiency is low, unstable product quality, labour intensity is large, work under bad environment, but yet there are no in the market a kind of control circuit of controlling the above-mentioned course of work.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, provide that a kind of automaticity is high, simple to operation, the control circuit of the roller-type centrifugal casting machine of high efficiency, and this circuit can be controlled water spray and spraying, and the structure height of control is simplified the constant product quality that adopts this circuit to produce.
The present invention is achieved in that a kind of control circuit of roller-type centrifugal casting machine, comprise and have analog input, the digital quantity input, the PLC module of digital output, power supply, centrifuge, frequency converter, water injector, spray equipment, travel switch, the time relay, some sensors and a plurality of instruction input switch and a plurality of relay switch, described power supply is used for to the PLC module, centrifuge, frequency converter, water injector, spray equipment, the sensor power supply, the digital quantity input of described PLC module is used for the acquisition instructions input switch, travel switch, the switch state signal of the time relay; The digital output of described PLC module is used for the switch state signal that the digital quantity input gathers is exported to frequency converter and relay switch, the state of the running status of control centrifuge main frame, spray equipment dolly and water injector water spray magnetic valve, spray equipment spraying magnetic valve, the time relay; The molten iron temperature signal passed to the CPU of PLC module when the analog input of described PLC module was used for the analog signal, mold temperature signal of the pressure of cooling water that sensor is collected and flow and cast, described CPU is used for judging whether the analog signal that gathers is unusual, and by the digital output of PLC module the switch controlling signal of CPU is exported to frequency converter and relay switch.
It is the Programmable Logic Controller of CP1E-N20DR-A that described PLC module adopts model.
The digital output of described PLC module also is used for the Product Process parameter information that output CPU sets, described Product Process parameter information comprises the temperature of pouring molten iron, the temperature of mould control, and cooling water flow is how much, the wind cooling time, coating content requires and the requirement of blank rotary speed.
One end of described instruction input switch, travel switch SQ1, time relay KT1 normally opened contact connects the digital quantity input of PLC module, the other end connects negative voltage V-, coil one end of described relay switch connects the digital output of PLC module, the other end connects negative voltage V-, and the 3rd, the 4th, the 5th common port COM of described PLC module connects positive voltage V+ by fuse.
Described instruction input switch comprises the first button SB1, the second button SB2, the 3rd button SB3, the 4th button SB4, the 5th button SB5, described relay switch comprises the first repeater KA1, the second repeater KA2, the 3rd repeater KA3, the 4th repeater KA4, the normally opened contact of described the first repeater KA1 is connected with the normally-closed contact of the second repeater KA2, the coil of the first contactor KM1 is connected power supply by the first repeater KA1 with the second repeater KA2, the normally opened contact of described the second repeater KA2 is connected with the normally-closed contact of the first repeater KA1, the coil of the second contactor KM2 is connected power supply by the first repeater KA1 with the second repeater KA2, be connected with the water injector coil of magnetic valve YB1 of time relay KT1 connects power supply by the 3rd repeater KA3, and the coil of spray equipment spraying magnetic valve YB2 connects power supply by the 4th repeater KA4.
Described control circuit is connected with fan assembly, fan assembly comprises fan, the 7th button SB7, the 8th button SB8, the 3rd contactor KM3, the 7th button SB7 connects with the 8th button SB8, the normally opened contact of described the 3rd contactor KM3 is connected in parallel on the 7th button SB7 two ends, the coil of described the 3rd contactor KM3 connects power supply by the normally opened contact of the 7th button SB7, the 8th button SB8, the 3rd contactor KM3, described the 7th button SB7 is for often driving button, and described the 8th button SB8 is normally closed button.
The first contactor KM1, the second contactor KM2, the 3rd contactor KM3 are A.C. contactor, described the first contactor KM1 is used for the forward of control spray equipment dolly, the second contactor KM2 is used for the counter-rotating of control spray equipment dolly, the 3rd contactor KM3 be used for the control fan startup, stop.
First, second common port COM of described PLC module all is connected with frequency converter common port COM, the first output 00 of described PLC module is connected with the first input end FOR of frequency converter, and the second output 01 of described PLC module is connected with the second input V3 of frequency converter.
Described PLC module adopts Winding Single Phase Capacitance, is provided with PLC power switch QS1 between PLC module and the single phase poaer supply, is connected with fuse between described PLC module and the power supply.
The invention has the beneficial effects as follows: because the control circuit of this roller-type centrifugal casting machine adopts the PLC module; automaticity is high; and only need press corresponding gauge tap; can control the water spray and spraying valve of water injector and spray equipment; and can also pass through Frequency Converter Control centrifuge main frame; by relay switch control spray equipment dolly; adopt this circuit operation simple and convenient; high efficiency; and the structure height of this circuit is simplified; the constant product quality that adopts this circuit to produce; also can gather the analog signal of pressure and the flow of cooling water by the PLC module; the mold temperature signal; and when cast the molten iron temperature signal; and judge whether unusually according to the analog signal that gathers; then by digital output the switch controlling signal of CPU is exported to gauge tap, thereby realize the malfunction monitoring protection.
Description of drawings
Fig. 1 is circuit diagram of the present invention.
The specific embodiment
Referring to Fig. 1, a kind of control circuit of roller-type centrifugal casting machine, comprise and have analog input, the digital quantity input, the PLC module of digital output, power supply, centrifuge, frequency converter, water injector, spray equipment, travel switch, the time relay, some sensors and a plurality of instruction input switch and a plurality of relay switch, described power supply is used for to the PLC module, centrifuge, frequency converter, water injector, spray equipment, the sensor power supply, the analog input of described PLC module connects some sensors, and described sensor comprises temperature sensor, pressure sensor etc.Molten iron temperature signal when described sensor is used for the analog signal, mold temperature signal of the pressure of cooling water and flow and cast.Described PLC module connects power supply by PLC power switch QS1, in the present embodiment, described PLC module adopts Winding Single Phase Capacitance, is connected with respectively fuse FU1, FU2 between single phase poaer supply and the PLC module, also is connected with scram button SB6 between the zero line of single phase poaer supply and the PLC power switch QS1.Described PLC module comprises CPU, analog input module, digital quantity input module, digital output module, and in the present embodiment, it is the Programmable Logic Controller of CP1E-N20DR-A that described PLC module adopts model.Described PLC module connects frequency converter, and described frequency converter connects centrifuge.In the present embodiment, first, second common port COM of described PLC module all is connected with frequency converter common port COM, the first output 00 of described PLC module is connected with the first input end FOR of frequency converter, be used for the one speed rotation of control centrifuge main frame, the second output 01 of described PLC module is connected with the second input V3 of frequency converter, is used for the rotation of control centrifuge main frame two-speed.One end of described instruction input switch, travel switch SQ1, time relay KT1 normally opened contact connects the digital quantity input module of PLC module, the other end connects negative voltage V-, coil one end of described relay switch connects the digital output module of PLC module, the other end connects negative voltage V-, and the 3rd, the 4th, the 5th common port COM of described PLC module connects positive voltage V+ by fuse FU3.Described instruction input switch comprises the first button SB1, the second button SB2, the 3rd button SB3, the 4th button SB4, the 5th button SB5, wherein, described the first button SB1, the second button SB2, the 3rd button SB3, the 4th button SB4, the 5th button SB5 is normal open switch, described relay switch comprises the first repeater KA1, the second repeater KA2, the 3rd repeater KA3, the 4th repeater KA4, the normally opened contact of described the first repeater KA1 is connected with the normally-closed contact of the second repeater KA2, the coil of the first contactor KM1 is connected single phase ac voltage (L by the first repeater KA1 with the second repeater KA2, N), the normally opened contact of described the second repeater KA2 is connected with the normally-closed contact of the first repeater KA1, the coil of the second contactor KM2 is connected power supply by the first repeater KA1 with the second repeater KA2, be connected with the water injector coil of magnetic valve YB1 of time relay KT1 connects single phase ac voltage (L by the 3rd repeater KA3, N), the coil of spray equipment spraying magnetic valve YB2 connects DC voltage (V+ by the 4th repeater KA4, V-).Described control circuit is connected with fan assembly, be used for to centrifuge and other device radiations, has prolonged the service life of centrifuge etc.Described fan assembly comprises fan, the 7th button SB7, the 8th button SB8, the 3rd contactor KM3, the 7th button SB7 connects with the 8th button SB8, the normally opened contact of described the 3rd contactor KM3 is connected in parallel on the 7th button SB7 two ends, the coil of described the 3rd contactor KM3 connects single phase ac voltage (L, N) by the normally opened contact of the 7th button SB7, the 8th button SB8, the 3rd contactor KM3, described the 7th button SB7 is for often driving button, and described the 8th button SB8 is normally closed button.Described the first contactor KM1, the second contactor KM2, the 3rd contactor KM3 are A.C. contactor, described the first contactor KM1 is used for the forward of control spray equipment dolly, the second contactor KM2 is used for the counter-rotating of control spray equipment dolly, the 3rd contactor KM3 be used for the control fan startup, stop.
Operation principle of the present invention is: the digital quantity input of described PLC module is used for the switch state signal of acquisition instructions input switch, travel switch, the time relay; The digital output of described PLC module is used for the switch state signal that the digital quantity input gathers is exported to frequency converter and relay switch, the state of the running status of control centrifuge main frame, spray equipment dolly and water injector water spray magnetic valve, spray equipment spraying magnetic valve, the time relay; The molten iron temperature signal passed to the CPU of PLC module when the analog input of described PLC module was used for the analog signal, mold temperature signal of the pressure of cooling water that sensor is collected and flow and cast, described CPU is used for judging whether the analog signal that gathers is unusual, when the analog signals that gathers is unusual (such as: cooling water pressure is excessive or too small etc.), the digital output of described PLC module is exported to frequency converter and relay switch with the switch controlling signal of CPU.The digital output of described PLC module also is used for the Product Process parameter information that output CPU sets, described Product Process parameter information comprises the temperature of pouring molten iron, the temperature of mould control, and cooling water flow is how much, the wind cooling time, coating content requires and the requirement of blank rotary speed.
During use:
Closed PLC power switch QS1 starts the PLC module.
Press the first button SB1, open centrifuge.
Press the second button SB2, the normally opened contact of the 3rd repeater KA3 is closed, the coil electricity of water spray magnetic valve YB1 and time relay KT1, the valve open of water spray magnetic valve YB1, the shower nozzle that is connected with water spray magnetic valve YB1 delivery port begins water spray, time relay KT1 begins timing simultaneously, after timing finished, its working contact carried out closed action, and output switch control signal is to the PLC module, the normally opened contact of the 3rd repeater KA3 is disconnected, the valve closing of water spray magnetic valve YB1.
The present invention passes through to regulate the delay performance of time relay KT1, thereby adjusts its delay time length.
Press the 3rd button SB3, the one speed rotation of centrifuge main frame, thereby drive centrifugal casting mould one speed rotation, at this moment, the normally opened contact of the first repeater KA1 is closed, normally-closed contact disconnects, the wire loop of the second contactor KM2 disconnects, the charged adhesive of the coil of the first contactor KM1, the main contacts of the first contactor KM1 is closed, spray equipment motor forward makes base move towards centrifugal casting mould, and drive coating bar extend in the die cavity of centrifugal casting mould gradually, simultaneously, the normally opened contact of the 4th repeater KA4 is closed, spraying magnetic valve YB2 energising, the valve open of spraying magnetic valve YB2, the shower nozzle that is connected to the coating club head begins spraying, thereby forms coating in the die cavity of centrifugal casting mould.
Spray complete after, because travel switch SQ1 and components hit, the contact action of travel switch, thereby the normally opened contact of the 4th repeater KA4 is disconnected, the valve closing of spraying magnetic valve YB2, simultaneously closed, the normally-closed contact disconnection of the normally opened contact of the second repeater KA2, the wire loop of the first contactor KM1 disconnects, the charged adhesive of the coil of the second contactor KM2, the main contacts of the second contactor KM2 is closed, the spray equipment motor reversal makes base back mobile, and the coating bar drives shower nozzle and withdraws from from the die cavity of centrifugal casting mould.
Press the 5th button SB5, centrifuge main frame two-speed rotation, thus driving the rotation of centrifugal casting mould two-speed, centrifuge begins casting cycle, and molten iron is inhomogeneous to be penetrated in the coating of centrifugal casting mould inwall, makes the mould casting outer wall have one deck burr.
Press the 5th button SB6, centrifuge stops immediately.
Press the 4th button SB4, centrifuge, frequency converter, spray equipment all quit work.
Claims (9)
1. the control circuit of a roller-type centrifugal casting machine, it is characterized in that: comprise having analog input, the digital quantity input, the PLC module of digital output, power supply, centrifuge, frequency converter, water injector, spray equipment, travel switch, the time relay, some sensors and a plurality of instruction input switch and a plurality of relay switch, described power supply is used for to the PLC module, centrifuge, frequency converter, water injector, spray equipment, the sensor power supply, the digital quantity input of described PLC module is used for the acquisition instructions input switch, travel switch, the switch state signal of the time relay; The digital output of described PLC module is used for the switch state signal that the digital quantity input gathers is exported to frequency converter and relay switch, the state of the running status of control centrifuge main frame, spray equipment dolly and water injector water spray magnetic valve, spray equipment spraying magnetic valve, the time relay; The molten iron temperature signal passed to the CPU of PLC module when the analog input of described PLC module was used for the analog signal, mold temperature signal of the pressure of cooling water that sensor is collected and flow and cast, described CPU is used for judging whether the analog signal that gathers is unusual, and by the digital output of PLC module the switch controlling signal of CPU is exported to frequency converter and relay switch.
2. the control circuit of roller-type centrifugal casting machine according to claim 1 is characterized in that: it is the Programmable Logic Controller of CP1E-N20DR-A that described PLC module adopts model.
3. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: the digital output of described PLC module also is used for the Product Process parameter information that output CPU sets, described Product Process parameter information comprises the temperature of pouring molten iron, the temperature of mould control, cooling water flow how much, the wind cooling time, coating content requires and the requirement of blank rotary speed.
4. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: an end of described instruction input switch, travel switch SQ1, time relay KT1 normally opened contact connects the digital quantity input of PLC module, the other end connects negative voltage V-, coil one end of described relay switch connects the digital output of PLC module, the other end connects negative voltage V-, and the 3rd, the 4th, the 5th common port COM of described PLC module connects positive voltage V+ by fuse.
5. the control circuit of roller-type centrifugal casting machine according to claim 4, it is characterized in that: described instruction input switch comprises the first button SB1, the second button SB2, the 3rd button SB3, the 4th button SB4, the 5th button SB5, described relay switch comprises the first repeater KA1, the second repeater KA2, the 3rd repeater KA3, the 4th repeater KA4, the normally opened contact of described the first repeater KA1 is connected with the normally-closed contact of the second repeater KA2, the coil of the first contactor KM1 is connected power supply by the first repeater KA1 with the second repeater KA2, the normally opened contact of described the second repeater KA2 is connected with the normally-closed contact of the first repeater KA1, the coil of the second contactor KM2 is connected power supply by the first repeater KA1 with the second repeater KA2, be connected with the water injector coil of magnetic valve YB1 of time relay KT1 connects power supply by the 3rd repeater KA3, and the coil of spray equipment spraying magnetic valve YB2 connects power supply by the 4th repeater KA4.
6. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: described control circuit is connected with fan assembly, fan assembly comprises fan, the 7th button SB7, the 8th button SB8, the 3rd contactor KM3, the 7th button SB7 connects with the 8th button SB8, the normally opened contact of described the 3rd contactor KM3 is connected in parallel on the 7th button SB7 two ends, the coil of described the 3rd contactor KM3 is by the 7th button SB7, the 8th button SB8, the normally opened contact of the 3rd contactor KM3 connects power supply, described the 7th button SB7 is for often driving button, and described the 8th button SB8 is normally closed button.
7. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: the first contactor KM1, the second contactor KM2, the 3rd contactor KM3 are A.C. contactor, described the first contactor KM1 is used for the forward of control spray equipment dolly, the second contactor KM2 is used for the counter-rotating of control spray equipment dolly, the 3rd contactor KM3 be used for the control fan startup, stop.
8. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: first, second common port COM of described PLC module all is connected with frequency converter common port COM, the first output 00 of described PLC module is connected with the first input end FOR of frequency converter, and the second output 01 of described PLC module is connected with the second input V3 of frequency converter.
9. the control circuit of roller-type centrifugal casting machine according to claim 1, it is characterized in that: described PLC module adopts Winding Single Phase Capacitance, be provided with PLC power switch QS1 between PLC module and the single phase poaer supply, be connected with fuse between described PLC module and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573464.2A CN102990032B (en) | 2012-12-26 | 2012-12-26 | Control circuit of support roller type centrifugal casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573464.2A CN102990032B (en) | 2012-12-26 | 2012-12-26 | Control circuit of support roller type centrifugal casting machine |
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| Publication Number | Publication Date |
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| CN102990032A true CN102990032A (en) | 2013-03-27 |
| CN102990032B CN102990032B (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210573464.2A Expired - Fee Related CN102990032B (en) | 2012-12-26 | 2012-12-26 | Control circuit of support roller type centrifugal casting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865887A (en) * | 2015-05-20 | 2015-08-26 | 无锡职业技术学院 | Control circuit for cleaning device with plate-type solar panel |
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|---|---|---|---|---|
| JPH11179512A (en) * | 1997-12-25 | 1999-07-06 | Kubota Corp | Centrifugal casting apparatus and centrifugal casting method |
| JP2004330264A (en) * | 2003-05-09 | 2004-11-25 | Asahi Tec Corp | Method and device for controlling operation situation in automatic casting system |
| CN201214146Y (en) * | 2008-05-07 | 2009-04-01 | 浙江万丰科技开发有限公司 | Remote pouring control system |
| CN201537691U (en) * | 2009-08-19 | 2010-08-04 | 黄石新兴管业有限公司 | Centrifuge casting automatic control system |
| CN202984624U (en) * | 2012-12-26 | 2013-06-12 | 武胜县锦雄机械有限责任公司 | Control device of roller type centrifugal casting machine |
-
2012
- 2012-12-26 CN CN201210573464.2A patent/CN102990032B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11179512A (en) * | 1997-12-25 | 1999-07-06 | Kubota Corp | Centrifugal casting apparatus and centrifugal casting method |
| JP2004330264A (en) * | 2003-05-09 | 2004-11-25 | Asahi Tec Corp | Method and device for controlling operation situation in automatic casting system |
| CN201214146Y (en) * | 2008-05-07 | 2009-04-01 | 浙江万丰科技开发有限公司 | Remote pouring control system |
| CN201537691U (en) * | 2009-08-19 | 2010-08-04 | 黄石新兴管业有限公司 | Centrifuge casting automatic control system |
| CN202984624U (en) * | 2012-12-26 | 2013-06-12 | 武胜县锦雄机械有限责任公司 | Control device of roller type centrifugal casting machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865887A (en) * | 2015-05-20 | 2015-08-26 | 无锡职业技术学院 | Control circuit for cleaning device with plate-type solar panel |
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| CN102990032B (en) | 2014-10-08 |
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Granted publication date: 20141008 Termination date: 20181226 |