The feeding system is a combination of weighing sensor, weighing instrument and control system. To achieve the weighing and measuring work of the tank, so as to control the system. Can directly access PLC system, terminal control system, to achieve multi-pass control and automatic control. The weak weight signal output by the weighing module is digitized to obtain high precision weighing data. The software is equipped with rich digital filtering technology, and the emergency software to prevent the interference system from getting out of control. Realize signal acquisition, processing, control and output, collect the level signal of the hopper, control the operation of the motor, solenoid valve and vacuum tube through the relay according to the collected data, and at the same time, manually control the feeding process through the keyboard, and display the level information and working status on the LCD display. The external extended storage space is used to store important information such as conveying, discharging, full and empty material of the two production lines of the automatic Feeder.

The working process of the automatic feeder is to transport the plastic particles to a vacuum tube, the vacuum tube is automatically closed during the conveying process, the vacuum tube will be automatically opened during the discharge, and the plastic particles will be sent to the discharge funnel. The control system requires a total of two relay controllers, which control the direction valve of the working direction and the production motor. When the air pump of the Feeding machine rotates, the air pump generates negative pressure to form a vacuum airflow, and the material is sucked by the suction nozzle to form a gas flow, which reaches the bin of the feeding machine through the suction tube. The filter completely separates the material from the air, and when the material is filled to the bin, the controller automatically cuts off the power, the vacuum feeder stops working, and the bin door automatically opens and the material falls into the hopper of the equipment. At the same time, compressed air automatically cleans the filter through a pulsed backblow valve. When the time is asked or the material level sensor sends a feeding signal, the feeding machine will be automatically started. The high vacuum produced by the vacuum air pump, the vacuum powder feeder of the air pump is to use the high vacuum generated by the rotation of the air pump to achieve the conveying of the material. So that the material to be transported to eliminate the stratification phenomenon, to ensure the uniformity of the composition of the mixed material, is spinning machinery, tablet press, capsule Filling machine, dry granulator, packaging machine, crusher, vibrating screen and other mechanical automatic feeding equipment of choice. According to the needs of the feeding process, the feeder control system sets the parameter values of the conveying, discharging, full and empty materials of the two production lines, and can also load the previous process parameter values of the system. The basic control requirements of the feeder are: Use a motor to control two production lines, to be able to detect the full state, and show the conveying, discharging, full time, time error 0.1S, with anti-interference ability.