CN201702911U - Injection molding machine double-closed-loop energy-saving control device - Google Patents
Injection molding machine double-closed-loop energy-saving control device Download PDFInfo
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- CN201702911U CN201702911U CN2010201233824U CN201020123382U CN201702911U CN 201702911 U CN201702911 U CN 201702911U CN 2010201233824 U CN2010201233824 U CN 2010201233824U CN 201020123382 U CN201020123382 U CN 201020123382U CN 201702911 U CN201702911 U CN 201702911U
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Abstract
The utility model relates to an injection molding machine double-closed-loop energy-saving control device, which comprises an injection molding machine controller, a pressure sensor, a flow sensor, an analog-digital conversion board and an oil pump motor. The injection molding machine double-closed-loop energy-saving control device is characterized in that for an outer closed loop, output pressure signals and flow signals of the oil pump motor are respectively connected into the pressure sensor and the flow sensor, the pressure sensor and the flow sensor are connected with the injection molding machine controller through input/output wires, output signals of the pressure sensor and the flow sensor are respectively connected into the analog-digital conversion board, output of the analog-digital conversion board is connected into a special control circuit for large-scale motor vector control, output signals of the special control circuit for large-scale motor vector control are connected to an input end of a vector frequency converter, and output control signals of the vector frequency converter are connected to the oil pump motor; for an inner closed loop, output torque signals of the vector frequency converter are fed back and connected into a feedback input end of the special control circuit for large-scale motor vector control. The injection molding machine double-closed-loop energy-saving control device has the advantage that combination of vector frequency conversion control technique with double-closed-loop control greatly increases energy conservation effect of an injection molding machine.
Description
Technical field
The utility model relates to the two closed loop energy-saving control apparatus of a kind of injection machine.
Background technology
The injection moulding industry is being faced with the period of a develop rapidly, in increasingly competitive injection moulding industry, the electricity charge have accounted for sizable ratio in the whole injecting products cost, and injection machine equipment waste of energy especially severe, how could save energy and reduce the cost effectively also just becomes the problem that presses for solution.The course of work of injection machine generally is divided into matched moulds. locked mode. and injection. pressurize. colloidal sol. cooling. the action of several stages such as die sinking, needed operating pressure of each stage is different with flow, with regard to oil pump motor, whole injection machine process is the load condition that is in continuous variation, the injection machine overwhelming majority is a constant displacement pump at present, its oil pump motor is with the constant constant flow of rotating speed output, and some stage only needs few flow and pressure in process of production, unnecessary hydraulic oil is by the overflow valve fuel tank that refluxes, and this process is called the high pressure throttling in the injection moulding industry.Energy waste is very serious.
Summary of the invention
The purpose of this utility model is that the oil pump motor that solves injection machine in the prior art is all exported the constant existing energy waste problem of flow with constant rotating speed in each production phase, and a kind of injection machine energy-saving control appliance is provided.The two closed loop energy-saving control apparatus of the utility model design injection machine, comprise: controller of plastic injection molding, pressure sensor, flow sensor, the analog-to-digital conversion plate, man-machine interface, remote monitoring, oil pump motor, it is characterized in that: outer closed loop is oil pump motor output pressure signal and flow signal difference cut-in pressure sensor, flow sensor, pressure sensor, flow sensor connects controller of plastic injection molding by input/output line, pressure sensor, the output signal of flow sensor inserts the analog-to-digital conversion plate separately, the output of analog-to-digital conversion plate inserts extensive motor vector controlled dedicated control circuit, extensive motor vector controlled dedicated control circuit output signal connects the input of vector frequency converter, and vector frequency converter output control signal connects oil pump motor; Interior closed loop is the feedback input end that the output torque signal feedback of vector frequency converter inserts extensive motor vector controlled dedicated control circuit.It is characterized in that: the I/O end of vector frequency converter connects the I/O end of man-machine interface, remote monitoring module respectively.The utility model has the advantages that the vector converter control technology is combined with two closed-loop controls, the excellent properties of existing vector converter control is insensitive to the parameter of electric machine again, accurate output torque promotes the energy-saving effect of injection machine greatly, and whole power savings is at 40%--75%.
Description of drawings
Accompanying drawing is a structural representation of the present utility model,
Below in conjunction with drawings and Examples the utility model is elaborated,
The specific embodiment
Comprise among the figure: controller of plastic injection molding 1, pressure sensor 2, flow sensor 3, analog-to-digital conversion plate 4, man-machine interface 5, remote monitoring 6, oil pump motor 7, it is characterized in that: outer closed loop is oil pump motor output pressure signal and flow signal difference cut-in pressure sensor, flow sensor, pressure sensor, flow sensor connects controller of plastic injection molding by input/output line, pressure sensor, the output signal of flow sensor inserts the analog-to-digital conversion plate separately, the output of analog-to-digital conversion plate inserts extensive motor vector controlled dedicated control circuit 8, extensive motor vector controlled dedicated control circuit output signal connects the input of vector frequency converter 9, and vector frequency converter output control signal connects oil pump motor; Interior closed loop is the feedback input end that output torque signal 10 feedbacks of vector frequency converter insert extensive motor vector controlled dedicated control circuit.It is characterized in that: the I/O end of vector frequency converter connects the I/O end of man-machine interface, remote monitoring module respectively.
Actual working state according to injection machine is given pressure sensor by controller of plastic injection molding output pressure signal, flow signal is given flow sensor ', convert analog signals to data signal through the analog-to-digital conversion plate and offer extensive motor vector controlled dedicated control circuit, through offering vector frequency converter after the computing of extensive motor vector controlled dedicated control circuit, the processing, frequency converter is operated on the maximum energy-saving state, and makes output torque reach optimization for extensive motor vector controlled dedicated control circuit by detecting the output torque signal feedback.So just can make injection machine always work in the moment state of actual needs, promptly avoid a lot of idle works, save electric energy greatly.Thereby native system has also increased pressure signal feedback, the flow signal feedback of oil pump motor reaches the purpose that can both accurately control each step of whole injection moulding process, reaches the optimum reduction method of energy.Whole power savings is at 40%--75%.Also increased man-machine interface in the system control procedure can be shown dynamically, remote monitoring can make the far distance controlled of whole injection machine become possibility.
According to the characteristics and the injection machine technological requirement of injection machine private energy-saving apparatus, the injection machine private energy-saving apparatus adopts the injection machine flow control signal, thereby control injection machine oil pump motor provides different pressure and flows according to technological requirement.Detent torque: 0.50Hz 180% nominal torque, speed adjustable range: 1: 100, steady speed precision: ± 0.5%0.50Hz can control motor 150% nominal torque stable operation.Refrequency control range is 0.1Hz～400.00Hz; With the special-purpose drive circuit+IGBT of extensive Electric Machine Control IC+ is core, the whole aircraft reliability height; Strong to primary voltage adaptability, fluctuation can reach ± and 20%; Current signal input circuit with two-way 0～1A of injection machine special use is applicable to the injection machine of the overwhelming majority; Cabinet type cabinet has carried out special EMI at the characteristics of injection machine and has handled, and the external interference of frequency converter is greatly reduced; High output torque: the output torque reaches 150% during 1HZ; Have the RS485 interface, can conveniently form centralized control system.
Claims (2)
1. two closed loop energy-saving control apparatus of injection machine, comprise: controller of plastic injection molding, pressure sensor, flow sensor, the analog-to-digital conversion plate, man-machine interface, remote monitoring, oil pump motor, it is characterized in that: outer closed loop is oil pump motor output pressure signal and flow signal difference cut-in pressure sensor, flow sensor, pressure sensor, flow sensor connects controller of plastic injection molding by input/output line, pressure sensor, the output signal of flow sensor inserts the analog-to-digital conversion plate separately, the output of analog-to-digital conversion plate inserts extensive motor vector controlled dedicated control circuit, extensive motor vector controlled dedicated control circuit output signal connects the input of vector frequency converter, and vector frequency converter output control signal connects oil pump motor; Interior closed loop is the feedback input end that the output torque signal feedback of vector frequency converter inserts extensive motor vector controlled dedicated control circuit.
2. by the two closed loop energy-saving control apparatus of the described injection machine of claim 1, it is characterized in that: the I/O end of vector frequency converter connects the I/O end of man-machine interface, remote monitoring module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201233824U CN201702911U (en) | 2010-03-04 | 2010-03-04 | Injection molding machine double-closed-loop energy-saving control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201233824U CN201702911U (en) | 2010-03-04 | 2010-03-04 | Injection molding machine double-closed-loop energy-saving control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201702911U true CN201702911U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201233824U Expired - Fee Related CN201702911U (en) | 2010-03-04 | 2010-03-04 | Injection molding machine double-closed-loop energy-saving control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201702911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275280A (en) * | 2011-05-20 | 2011-12-14 | 王洪彬 | Injection machine servo energy-saving control system |
| CN103878964A (en) * | 2012-12-21 | 2014-06-25 | 恩格尔奥地利有限公司 | Method For Monitoring A Temperature Control Media Supply |
-
2010
- 2010-03-04 CN CN2010201233824U patent/CN201702911U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275280A (en) * | 2011-05-20 | 2011-12-14 | 王洪彬 | Injection machine servo energy-saving control system |
| CN103878964A (en) * | 2012-12-21 | 2014-06-25 | 恩格尔奥地利有限公司 | Method For Monitoring A Temperature Control Media Supply |
| CN103878964B (en) * | 2012-12-21 | 2017-01-11 | 恩格尔奥地利有限公司 | Method For Monitoring A Temperature Control Media Supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20120304 |