CN105081268A - Power source system of die-casting machine - Google Patents
Power source system of die-casting machine Download PDFInfo
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- CN105081268A CN105081268A CN201510524415.3A CN201510524415A CN105081268A CN 105081268 A CN105081268 A CN 105081268A CN 201510524415 A CN201510524415 A CN 201510524415A CN 105081268 A CN105081268 A CN 105081268A
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Abstract
The invention discloses a power source system of a die-casting machine. The power source system comprises the following units including a central processing unit, a synchronization servo driver and an oil temperature cooling loop. The central processing unit is used for receiving signals of a sensor arranged in the die-casting machine; the synchronization servo driver is connected to the central processing unit and conducts output control over a first permanent magnet synchronization servo motor, one end of the first permanent magnet synchronization servo motor is connected with a power oil pump, and the other end of the first permanent magnet synchronization servo motor is connected with a rotary transformer; and the rotary transformer is connected with the central processing unit, one end of the power oil pump is connected with an oil tank, the other end of the power oil pump outputs power oil, and a pressure sensor is further arranged at the output end of the power oil pump and connected with the central processing unit. The power source system aims at overcoming the defects and the shortcomings in the prior art; and by means of the power source system, the energy consumption can be greatly reduced, and normal running of the oil pump motor can be guaranteed.
Description
Technical field
The present invention relates to a kind of power source system of die casting machine.
Background technology
Die casting machine process equipment is typical periodic load kind equipment, an one complete working period generally comprises matched moulds-to soup-injection-pressure release (cooling)-die sinking-eject several operations such as-pickup (energy storage)-spraying, each operation is all complete a series of actions by oil pump motor pump output hydraulic pressure oil to each oil cylinder pushing transmission mechanism, and the pressure versus flow that each stage needs is not identical yet.For hydraulic system, the coupling of each stage to pressure, flow is each different, and the power of the constant displacement pump (being generally quantitative pair vane pump, gear pump) that die casting machine adopts configures according to the maximum load in its running.Die casting machine only has the operation loads such as matched moulds, injection, die sinking, energy storage comparatively large in a work period, and the load of other operation is general less, and particularly in the system decompression stage, its load is almost nil.For oil pump motor, the die casting machine course of work is the load condition being in change.
And in the hydraulic system of constant displacement pump, oil pump provides constant flow, unnecessary hydraulic oil is back to fuel tank by overflow valve, and this process is called high pressure throttling.Particularly die casting machine is in the off-load stage, and the requirement of its system to pressure, flow is almost 0, and motor still drags oil pump running with rated speed, and hydraulic oil now almost all gets back to fuel tank by overflow valve, so just there is a large amount of waste of energy.On the other hand, Oil pump electrical machinery work also can produce heat, and these heats will make oil pump motor temperature raise, thus have impact on the stability of oil pump motor work.
Summary of the invention
The object of the invention is the shortcoming and defect existed to overcome prior art, and provide a kind of and significantly can reduce energy consumption and the power source system of a kind of die casting machine that Oil pump electrical machinery runs well can be ensured.
To achieve these goals, the technical solution used in the present invention is: a kind of power source system of die casting machine, it is characterized in that comprising with lower unit: central processing unit, for receiving the signal of the sensor cluster in die casting machine, electromotor synchronization servo drive, this electromotor synchronization servo drive is connected on central processing unit, and export control first permanent magnet synchronous servo motor, first described permanent magnet synchronous servo motor one end is connected with power oil pump, and the other end is connected with rotary transformer, and described rotary transformer is connected with central processing unit, described power oil pump one end is connected with fuel tank, other end outputting power oil, power oil delivery side of pump is also provided with pressure sensor, and described pressure sensor is connected with central processing unit, also include oil temperature cooling circuit, this oil temperature cooling circuit comprises the second permanent magnet synchronous servo motor be connected on electromotor synchronization servo drive, the cooling oil pump and cooler that are connected is driven with the second permanent magnet synchronous servo motor, the oil circuit of described cooling oil pump exports cold oil and is connected to electromotor synchronization servo drive and the first permanent magnet synchronous servo motor, this electromotor synchronization servo drive and the first permanent magnet synchronous servo motor oil circuit export and are connected to cooler, described cooler is connected with fuel tank, oil temperature sensor is provided with in described fuel tank, this oil temperature sensor exports oil temperature signal, and be input in central processing unit, central processing unit is according to oil temperature signal, calculate output second flow drive singal to electromotor synchronization servo drive, electromotor synchronization servo drive drived control second permanent magnet synchronous servo motor.
The present invention is also set to further, also comprises human-computer interaction interface, and described human-computer interaction interface is connected with central processing unit by communication unit.
The present invention is also set to further, and described communication unit is RS485 communication interface.
The present invention is also set to further, and described cooling oil pump and power oil pump are constant displacement pump.
The present invention is also set to further, and described first permanent magnet synchronous servo motor is connected by shaft coupling with power oil pump.
The present invention is also set to further, is provided with fluid level transmitter in described fuel tank, and this fluid level transmitter is connected with central processing unit.
Beneficial effect of the present invention: the power source system of die casting machine provided by the present invention, it utilizes central processing unit to receive the sensor cluster signal of die casting machine, as pressure sensor, rotary transformer, the travel control switch signal etc. of each station, and then the setting signal of desired flow and pressure is calculated by central processing unit, and drive permanent magnet synchronous servo motor outputting power oil by electromotor synchronization servo drive, so, can be according to actual needs, the flow of the power oil exported is made to mate each station needs of die casting machine as much as possible, therefore, greatly can reduce energy consumption, in addition, permanent magnet synchronous servo motor response speed, startup and retro-speed are all far superior to traditional oil pump motor, therefore, improve working (machining) efficiency and the quality of die casting machine.
In addition, by arranging oil temperature cooling circuit, once occur that oil temperature is higher than setting value, just can open the second permanent magnet synchronous servo motor and cooling oil pump, carry out the accelerating cooling of oil temperature, prevent the temperature of the second permanent magnet synchronous servo motor on electromotor synchronization servo drive too high, improve the stability that equipment runs.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Number in the figure implication: 1-central processing unit; 2-electromotor synchronization servo drive; 3-first permanent magnet synchronous servo motor; 4-power oil pump; 5-rotary transformer; 6-fuel tank; 7-pressure sensor; 8-cooling oil pump; 9-cooler; 10-oil temperature sensor; 11-human-computer interaction interface; 12-communication unit; 13-fluid level transmitter.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Below with reference to Fig. 1, the present invention will be described.
A power source system for die casting machine, comprises with lower unit: central processing unit 1, and for receiving the signal of the sensor cluster in die casting machine, central processing unit 1 adopts the processor of SIEMENSS7-200CN model, electromotor synchronization servo drive 2, this electromotor synchronization servo drive 2 connects on hand central processing unit 1, and export control first permanent magnet synchronous servo motor 3, first described permanent magnet synchronous servo motor 3 one end is connected with power oil pump 4, the other end is connected with rotary transformer 5, described rotary transformer 5 is connected with central processing unit 1, rotary transformer 5 is for measuring the position of the first permanent magnet synchronous servo motor 3, the position of feedback machine shaft, machine shaft angular displacement and angular velocity signal are fed back to central processing unit 1, central processing unit 1 controls the first permanent magnet synchronous servo motor 3 according to this signal again, described power oil pump 4 one end is connected with fuel tank 6, other end outputting power oil, supply die casting machine, the output of power oil pump 4 is also provided with pressure sensor 7, described pressure sensor 7 is connected with central processing unit 1, pressure sensor 7 is for detecting the output pressure signal of power oil pump 4, and feed back to central processing unit 1, central processing unit 1 calculates the setting signal of desired flow and pressure to electromotor synchronization servo drive 2 in conjunction with given pressure and flow, also include oil temperature cooling circuit, this oil temperature cooling circuit comprises the second permanent magnet synchronous servo motor be connected on electromotor synchronization servo drive 2, the cooling oil pump 8 and cooler 9 that are connected is driven with the second permanent magnet synchronous servo motor, the oil circuit of described cooling oil pump 8 exports cold oil and is connected to electromotor synchronization servo drive 2 and the first permanent magnet synchronous servo motor 3, this electromotor synchronization servo drive and 2 first permanent magnet synchronous servo motor 3 oil circuits export and are connected to cooler 9, described cooler 9 is connected with fuel tank 6, oil temperature sensor 10 is provided with in described fuel tank 6, this oil temperature sensor 10 exports oil temperature signal, and be input in central processing unit 1, central processing unit 1 is according to oil temperature signal, calculate output second flow drive singal to electromotor synchronization servo drive 2, the work of electromotor synchronization servo drive 2 drived control second permanent magnet synchronous servo motor.
The power source system of die casting machine also comprises human-computer interaction interface 11, and described human-computer interaction interface 11 is connected with central processing unit 1 by communication unit 12, and described communication unit 12 is RS485 communication interface.
First permanent magnet synchronous servo motor 3 is connected by shaft coupling with power oil pump 4, improves the stability of the first permanent magnet synchronous servo motor 3 output torque.
Fluid level transmitter 13 is provided with in fuel tank 6, this fluid level transmitter 13 is connected with central processing unit 1, fluid level transmitter 13 is for the liquid level signal that detects in fuel tank 6 and be transferred to central processing unit 1, when the fuel tank 6 in fuel tank is inadequate, fluid level transmitter 13 can send alarm signal, central processing unit 1 controls die casting machine and quits work, and ensures the safety of producing.
In the present embodiment, cooling oil pump 8 and power oil pump 4 are constant displacement pump.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improvement of above-mentioned hypothesis and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a power source system for die casting machine, is characterized in that comprising with lower unit: central processing unit, for receiving the signal of the sensor cluster in die casting machine, electromotor synchronization servo drive, this electromotor synchronization servo drive is connected on central processing unit, and export control first permanent magnet synchronous servo motor, first described permanent magnet synchronous servo motor one end is connected with power oil pump, and the other end is connected with rotary transformer, and described rotary transformer is connected with central processing unit, described power oil pump one end is connected with fuel tank, other end outputting power oil, power oil delivery side of pump is also provided with pressure sensor, and described pressure sensor is connected with central processing unit, also include oil temperature cooling circuit, this oil temperature cooling circuit comprises the second permanent magnet synchronous servo motor be connected on electromotor synchronization servo drive, the cooling oil pump and cooler that are connected is driven with the second permanent magnet synchronous servo motor, the oil circuit of described cooling oil pump exports cold oil and is connected to electromotor synchronization servo drive and the first permanent magnet synchronous servo motor, this electromotor synchronization servo drive and the first permanent magnet synchronous servo motor oil circuit export and are connected to cooler, described cooler is connected with fuel tank, oil temperature sensor is provided with in described fuel tank, this oil temperature sensor exports oil temperature signal, and be input in central processing unit, central processing unit is according to oil temperature signal, calculate output second flow drive singal to electromotor synchronization servo drive, electromotor synchronization servo drive drived control second permanent magnet synchronous servo motor.
2. the power source system of a kind of die casting machine according to claim 1, is characterized in that: also comprise human-computer interaction interface, and described human-computer interaction interface is connected with central processing unit by communication unit.
3. the power source system of a kind of die casting machine according to claim 2, is characterized in that: described communication unit is RS485 communication interface.
4. the power source system of a kind of die casting machine according to claim 1, is characterized in that: described cooling oil pump and power oil pump are constant displacement pump.
5. the power source system of a kind of die casting machine according to claim 1, is characterized in that: described first permanent magnet synchronous servo motor is connected by shaft coupling with power oil pump.
6. the power source system of a kind of die casting machine according to claim 1, it is characterized in that: be provided with fluid level transmitter in described fuel tank, this fluid level transmitter is connected with central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524415.3A CN105081268A (en) | 2015-08-20 | 2015-08-20 | Power source system of die-casting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524415.3A CN105081268A (en) | 2015-08-20 | 2015-08-20 | Power source system of die-casting machine |
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| CN105081268A true CN105081268A (en) | 2015-11-25 |
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| CN201510524415.3A Pending CN105081268A (en) | 2015-08-20 | 2015-08-20 | Power source system of die-casting machine |
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| JP2010175053A (en) * | 2009-02-02 | 2010-08-12 | Ihi Infrastructure Systems Co Ltd | Sliding bearing device |
| CN102303109A (en) * | 2011-08-31 | 2012-01-04 | 重庆溢希恩真节能电力设备有限公司 | Automatic releasing agent proportioning economizer for die casting machine |
| CN202137352U (en) * | 2011-05-16 | 2012-02-08 | 深圳领威科技有限公司 | Pump station output device of continuous casting machine |
| CN202555793U (en) * | 2012-04-16 | 2012-11-28 | 李红 | Driving system for energy saving of oil pump motor of cold chamber die-casting machine |
| CN202984634U (en) * | 2013-01-10 | 2013-06-12 | 宁波高新区安立特电气科技有限公司 | Servo control system for die-casting machine |
| CN203184622U (en) * | 2012-12-30 | 2013-09-11 | 宁波弘讯科技股份有限公司 | Servo system of die-casting machine |
| CN103920862A (en) * | 2014-04-30 | 2014-07-16 | 重庆立致和节能科技有限公司 | Die-casting machine asynchronous servo energy-saving control method and system |
| CN203751312U (en) * | 2013-12-05 | 2014-08-06 | 温州乐控节能科技有限公司 | Synchronous servo power source system of die casting machine |
| CN204892902U (en) * | 2015-08-20 | 2015-12-23 | 温州乐控节能科技有限公司 | Power source system of die casting machine |
-
2015
- 2015-08-20 CN CN201510524415.3A patent/CN105081268A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010175053A (en) * | 2009-02-02 | 2010-08-12 | Ihi Infrastructure Systems Co Ltd | Sliding bearing device |
| CN202137352U (en) * | 2011-05-16 | 2012-02-08 | 深圳领威科技有限公司 | Pump station output device of continuous casting machine |
| CN102303109A (en) * | 2011-08-31 | 2012-01-04 | 重庆溢希恩真节能电力设备有限公司 | Automatic releasing agent proportioning economizer for die casting machine |
| CN202555793U (en) * | 2012-04-16 | 2012-11-28 | 李红 | Driving system for energy saving of oil pump motor of cold chamber die-casting machine |
| CN203184622U (en) * | 2012-12-30 | 2013-09-11 | 宁波弘讯科技股份有限公司 | Servo system of die-casting machine |
| CN202984634U (en) * | 2013-01-10 | 2013-06-12 | 宁波高新区安立特电气科技有限公司 | Servo control system for die-casting machine |
| CN203751312U (en) * | 2013-12-05 | 2014-08-06 | 温州乐控节能科技有限公司 | Synchronous servo power source system of die casting machine |
| CN103920862A (en) * | 2014-04-30 | 2014-07-16 | 重庆立致和节能科技有限公司 | Die-casting machine asynchronous servo energy-saving control method and system |
| CN204892902U (en) * | 2015-08-20 | 2015-12-23 | 温州乐控节能科技有限公司 | Power source system of die casting machine |
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