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An energy-saving servo control system for an injection molding machine

A servo control system and servo controller technology, applied in the field of injection molding machine control modules, can solve the problems of general control accuracy and poor energy saving effect, and achieve the effects of accurate and fast control, elimination of useless work, and easy management

Active Publication Date: 2018-02-02
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an energy-saving servo control system for injection molding machines with more accurate control accuracy and excellent energy-saving effect in order to overcome the disadvantages of poor energy-saving effect and general control accuracy in the prior art.

Method used

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  • An energy-saving servo control system for an injection molding machine
  • An energy-saving servo control system for an injection molding machine
  • An energy-saving servo control system for an injection molding machine

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, an energy-saving servo control system for an injection molding machine includes an injection molding machine control module 7, a servo motor 2, a quantitative pump 3, a control element 8, and an actuator 9. The servo motor 2 is connected to the quantitative pump 3, and the quantitative pump 3 is connected to the control element 8. , the control element 8 is connected to the executive element 9, and also includes a servo controller 1, a pressure sensor 4 and a speed sensor 5, the servo controller 1 includes a data processing module 11, a torque conversion module 12 and a speed conversion module 13, and the injection molding machine control module 7 is connected to Data processing module 11, data processing module 11 connects pressure sensor 4, speed sensor 5, torque conversion module 12 and speed conversion module 13 respectively, torque conversion module 12 and speed conversion module 13 connect servomotor 2 respectively, pressure sensor 4 is s...

Embodiment 2

[0037] Compared with the first embodiment, this embodiment further includes an electrical control module 6 connected to the industrial AC power supply and the servo controller 1 respectively. Such as image 3 As shown, the electrical control module 6 includes a filter 15 and a reactor 14, the filter 15 is respectively connected to the reactor 14 and the servo controller 1, and the reactor 14 is connected to an industrial AC power supply. The working process is the same as that of the first embodiment, and at the same time, the electrical control module 6 can suppress high-order harmonics in the input power supply, eliminate current impact, improve power factor, and reduce useless work.

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Abstract

The invention relates to an energy-saving servo control system for an injection molding machine. The energy-saving servo control system comprises a control module of the injection molding machine, a servo motor, a constant displacement pump, a control element and a performing element, and further comprises a servo controller, a pressure sensor and a speed sensor, wherein the servo controller comprises a data processing module, a torque conversion module and a speed conversion module; the control module of the injection molding machine comprises a data processing module which is respectively connected to the pressure sensor, the speed sensor, the torque conversion module and the speed conversion module; the torque conversion module and the speed conversion module are respectively connected to the servo motor; the pressure sensor is arranged on an oil outlet pipeline of the constant displacement pump; the speed sensor is arranged on the output shaft of the servo motor; and the servo motor is used for receiving a torque signal and a rotation speed signal which are independent from one another. Compared with the prior art, a purpose of regulating the control system by double closed-loop feedback of a pressure flow rate and rotation speed is realized, so that the working performance of the operation of the injection molding machine is relatively stable, and the energy utilization efficiency of the injection molding machine is improved.

Description

technical field [0001] The invention relates to the field of injection molding machine control modules, in particular to an energy-saving servo control system for an injection molding machine. Background technique [0002] In recent years, with the rapid development of hydraulic transmission technology and electronic control technology, injection molding machines have been widely used in construction, automobiles, molds, home appliances, medical and other industries. Since 2006, the average annual growth rate of plastic consumption is about 9%. my country has become one of the largest plastic product production and consumption markets in the world. Therefore, energy saving and consumption reduction have become an economic development strategy, and the energy saving of injection molding machines has also received widespread attention. In recent years, the number of imported and exported injection molding machines in my country has basically remained at about 15,000 units, mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/76
CPCB29C45/76
Inventor 佘匡华廖秋慧
Owner SHANGHAI UNIV OF ENG SCI
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