Servo motor control system of all-electric injection molding machine and control method thereof

Abstract

The invention discloses a servo motor control system of an all-electric injection molding machine, comprising an injection molding machine computer controller, a servo motor controller and a PLC controller; the computer controller is connected with the servo motor controller through a CAN bus, the servo motor controller is connected with a servo motor, and the computer controller is connected with PLC controller; the servo motor controller can be a mould opening / closing servo motor controller, a plastic injection servo motor controller, a plasticizing pressure holding servo motor controller and an ejection servo motor controller; and the servo motor can be a mould opening / closing servo motor, a plastic injection servo motor, a plasticizing pressure holding servo motor and an ejection servo motor. The invention also discloses a control method for the control system; and technological procedures capable of being performed simultaneously are synchronously controlled through performing mould opening / closing control, plasticizing control, plastic injection control, pressure holding control, ejection control, mobile control of an injection platform and mould adjustment control on the motor of the electric injection molding machine, thereby saving one third of the production time.

Description

technical field [0001] The invention relates to the field of electric injection molding machines, in particular to a control system and a control method for a servo motor of an all-electric injection molding machine. Background technique [0002] Plastic injection molding machine is the main molding equipment for making thermoplastic or thermosetting plastic into various plastic parts. The working process of a general-purpose plastic injection molding machine (hereinafter referred to as injection molding machine) is as follows: granular or powdery plastic is sent from the hopper of the injection molding machine into a heated barrel with a certain temperature, and after being heated and melted, it becomes a flowing state. , is pushed by the screw through the nozzle at the front end of the barrel, and injected into a closed mold with a lower temperature. Under pressure, the plastic melt becomes a plastic product after cooling and solidifying. [0003] Although the existing hy...

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Problems solved by technology

[0003] Although the existing hydraulic injection molding machine driving device can generate a large force to drive the mechanical structure to achieve stable transmission, there are still many shortcomings, such as high energy consumption, high noise, serious pollution, low production efficiency, etc.

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