What is the mechanical principle of an all-electric injection molding machine?

I. Mechanical principle of all-electric injection molding machine

1, mold opening, mold locking, ejector, and other actions using high-precision screw nut, transmission accuracy of 0.01mm.
2, linear guide rail, the traditional reciprocating sliding guidance into rolling guidance, improve positioning accuracy, reduce the cost of machinery and substantial savings in electricity, can maintain high precision for a long time.
3、Adopt a new type of force measuring sensor, accurate control of backpressure to obtain stable precision injection.
4、Synchronous pulley and synchronous belt, simple structure, easy installation, high precision transmission, low noise.
5、Adopt centralized lubrication and volumetric proportional distributor to ensure sufficient lubrication at each point.

Non-reverse ring (over rubber ring) --- As the name implies, the role of the non-reverse ring is to stop the reverse. It is a part that prevents the plastic melt from leaking backward during the injection. The nozzle is the transition part that connects the barrel and the mold.

The flange is the part that connects the nozzle to the barrel. It only acts as a channel in the plasticizing and injection process of plastic.

The hopper is a part of storing plastic materials, and some additional heat and air blowing devices to the hopper to make a dry hopper.

The principle of electric control of all-electric injection molding machine.

Servo system: It is an automatic control system that enables the output-controlled quantity such as position, orientation, and state of the object to follow any change in the input target (or given value). The main task of the servo is to amplify, transform and regulate the power and other processing according to the requirements of the control command, so that the output torque, speed, and position control of the drive is very flexible and convenient.

Mold locking servo motor
The working principle of servo motor.

Servo motor is a typical closed-loop feedback system, the reduction gear set driven by the motor, its terminal (output) drive a linear proportional potentiometer for position detection, the potentiometer to convert the rotary coordinates into proportional voltage feedback to the control circuit board, the control circuit board will be compared with the input control pulse signal, generate a corrective pulse, and drive the motor forward or reverse rotation, so that the output position of the gear set with the desired value, so that the corrective pulse tends to 0, so as to achieve the purpose of accurate positioning of the servo motor.

Servo motor control.
The standard servo motor has three control lines: power, ground, and control. The power and ground lines are used to provide the energy required for the internal motor and control lines. The voltage is usually between 4V and 6V, and this power supply should be isolated from the power supply of the processing system as much as possible (because the servo motor generates noise). Even a small servo motor under heavy load can pull down the

the voltage of the amplifier, so the ratio of the power supply to the whole system must be reasonable. A periodic positive pulse signal is input. The high-level time of this periodic pulse signal is usually between 1ms and 2ms, while the low-level time should be between 5ms and 20ms.