Twin screw extrusion machine

Twin screw extrusion machine Electrical control system

Main control system: PLC control, Siemens S7-300 series products. Siemens TP-270, 10-inch HMI is used to monitor all temperatures, speeds, currents and load rates throughout the production line.

Twin screw extrusion machine data processing functions 

1. The trend curves of temperature, velocity and pressure are available for inquiry;

2. Display of alarm information, detailed historical alarm records, storage and invocation of process formula data.

3. All motors in the production line are started and stopped by hardware buttons;

4. Install protective cover on the touch screen to prevent external damage to the touch screen.

5. Designed in the program with the shutdown function such as overpressure alarm. The interface is in Chinese.

Safety facilities: Dial indicator display, limit switch and imported safety wire device are installed near the three rollers, and emergency brake cable is installed on the traction rack to prevent the equipment from being stopped in case of wrong operation or danger, so as to ensure the safety of operators. Roll spacing can be automatically opened in case of emergency.

Three roller, traction and other sections of motor speed control mode: frequency conversion speed control with closed loop control, inverter using ABB products. The speed of the three rolls and the traction section can be adjusted either synchronously or individually, which can raise or lower the speed of the production line as a whole, or manually adjust the speed of each section at the beginning of production. The displayed data should be kept within 1% of the actual measured value. Electrical components: indicator light, start-stop switch, the button is Siemens; Ac contactors, circuit breakers, relays, etc. For Siemens, Omron, Schneider.

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