Volumetric feeding system

The screw feeder detects the weight of the material passing through the weight bridge to determine the weight of the material on the tape, the digital speed sensor installed in the tail, and continuously measures the running speed of the feeder. 

The pulse output of the speed sensor is proportional to the speed of the feeder, the speed signal and the weight signal are fed into the feeder controller together. 

The microprocessor in the controller processes it to generate and display the accumulative amount / instantaneous flow rate. The flow rate is compared with the set flow rate. The frequency converter is controlled by the output signal of the control instrument to change the driving speed of the feeder, so that the material flow on the feeder changes, approaching and maintaining the set feed flow rate.