Servo injection molding machine and ordinary injection molding machine those differences?

Updated: 2016-10-21

     Servo injection molding machine and ordinary injection molding machine those differences?

answer:

The difference between the two is the motor.

Ordinary injection molding machine: stop operation, even if the machine action stops, the motor also kept in the turn.

Servo injection molding machine: each do a different action will use the appropriate power to provide power, as the machine does not move, the servo motor will be completely stopped.

High-speed injection molding machine is the whole motor, ordinary injection molding machine are hydraulic injection molding machine, and hydraulic injection molding machine relatively slow speed. At present, all-electric injection molding machine servo motor to achieve the opening and closing mode, the top out of mold, injection of raw materials storage. Etc., running speed that is fast and sophisticated, greatly improve or improve the production environment and production efficiency. But now the servo electric injection molding machine clamping force is only 850 tons in the following machines.

In contrast, the servo energy-saving system will be injection molding machine power system is divided into six elements, namely, servo motors, encoders, gear pumps, servo drives, pressure sensors and drive control module. Among them, the drive control module is different from the traditional injection molding machine key and core. The specific work process and key technologies can be summarized as follows:

1. The servo drive receives the pressure (P) and flow (Q) commands from the injection molding machine controller and converts it to the speed command to the servomotor. The servo motor drives the gear pump to rotate, and the gear pump outputs the pressure and flow according to the instruction. At the same time, the pressure sensor collects the system pressure information and feeds back to the servo driver. The servo motor feedbacks the speed information to the servo driver. The servo drive then feeds the actual pressure and flow information back to the injection molding machine controller through the conversion. By comparing the actual flow, pressure and instruction flow, pressure, injection molding machine controller to adjust the command flow and pressure, in order to achieve closed-loop control.

2. The response speed of the servo system can reach 0.03ms, much higher than the response speed of the variable pump 0.3ms, thus significantly improve the control accuracy.

3. Another key design point for the system is the selection of a suitable servo system for the injection molding machine. Here, the injection molding machine to change the injection molding machine power configuration design method: directly from the product requirements to select the injection molding machine power configuration, and injection molding of each step need to list the pressure, flow and time requirements, Calculate the actual power required for each step, and then calculate the power of the entire cycle, to determine the selected servo power configuration. The advantage of this is that the details of the various steps to strengthen and clarify the power requirements, so that it not only meet the production requirements of products, but just to fully meet the production requirements, starting from the source to control energy waste to achieve energy efficiency.