Based on the original batching production line, the loading system is designed for automatic control of batching weighing. Each raw material is fed by its own feeding screw conveyor, and fed through its own lower hopper, and the position of each lower hopper is marked by the corresponding position switch. When a raw material is fed, the monitoring center PC can configure the parameters of raw materials to be weighed on the weighing instrument, and the programmable controller (PLC) can control the symmetrical position of the ingredients and the feeding motor according to the raw material formula. When starting the batching weighing, PLC controls the batching to reach the corresponding hopper position, and starts the feeding motor through the switching control frequency converter to start the batching weighing. According to the weighing condition signal fed back by the weighing instrument, PLC controls the frequency converter to adjust the motor speed to control the feed screw conveyor start and stop, speed and slow, and shut down the motor at the end of the current raw material weighing. The PC reads the weighing result value of the meter.

Weighing system using weighing instrument, the instrument can be directly connected to a variety of Weighing modules, with switching input and output interface, serial communication interface, flexible and diverse dosing mode can be adjusted with the environment, automatic drop compensation, as well as material door vibration suppression and other functions, instrument memory can store 100 groups of parameters, each group of parameters can be set multiple parameter values such as: Basic value, automatic drop value, lower limit value, predetermined value, upper limit value, etc. The sampling rate is 7O times/s, and the display resolution is 1/16000. The AD4325A can fully meet the requirements of automatic control of weighing ingredients, so it is reserved for use to give full play to its performance.