Mixing system is a multi-input, multi-output system, each batching conveyor line strictly coordinated control, the level of material, flow timely and accurate monitoring and regulation. A two-level computer control network is formed by the programmable controller and the tank Weighing system, and the equipment with high intelligence and fast processing speed is connected to the field instruments, control computers, PLC and frequency converters through the field bus. In the process of automatic batching production, the main material and auxiliary materials are matched in a certain proportion, and PLC mainly undertakes real-time control of the batching and weighing process, and complete the system fault detection, display and alarm, and at the same time output signals to the inverter to adjust the motor speed.

Weighing system is the process of automatically adding two or more kinds of materials into the mixing tank according to a certain weight ratio, and automatically discharging after mixing to meet the predetermined requirements. The computer with stable performance is used to complete data acquisition and communication processing, which is convenient to provide processing accuracy and reduce cost. The data output and management are carried out through the COM communication interface of the computer itself. The selection of Mitsubishi F900 touch screen to replace the conventional weighing display as the man-machine interface makes the interface programming of PLC and weighing display more simple, and can enhance the display function.