Weighing Filling machine using net weight, gross weight two kinds of Electronic scale filling mode selection, to meet the different filling needs of users. The weight is picked up through the pressure weighing module, and the picked weight signal is amplified and filtered, then it enters the A/D converter for analog to digital conversion, and then sends to the microcontroller for signal analysis and processing. The result is output to the industrial control through the RS232C communication serial port. At the same time according to the result of the signal to make the corresponding reaction and perform the corresponding operation. The weighing control system takes SCADA filling as the platform, and carries on the secondary development of filling function on this platform, realizes the intelligent filling process management and control. The establishment of software for automatic process control using computer identification technology, printing technology, automatic control technology, information technology, the formation of intelligent automatic filling, to meet customers for the filling process automation, information, intelligent requirements.

The filling equipment collects and controls data on the site. The filling equipment is in the field control layer, and the Filling system can collect and control all kinds of signals on the site. Its main functions include: communicating with the upper computer system, installing the system to collect and transmit the information of the filling machine; On-line continuous acquisition of liquid level, frequency converter and other analog input signals; Real-time acquisition of pump, solenoid valve, photoelectric switch, proximity switch, electric actuator and other switching status signals, and according to the operation requirements of the signal control of various valves on and off; Then it communicates with the weighing and filling machine to make the weighing and filling device control the servo motor to realize the accurate control of the canning capacity. Finally realize the automatic control of the system.

Filling production line by filling machine, capping machine, sealing machine, inkjet unit, the entire production line by the conveyor belt throughout, responsible for the transport of containers. Filling machine is the main equipment of this production line, and its performance plays a decisive role in the function and efficiency of the entire production line. In order to improve the performance of the filling machine, the filling machine is designed by the servo control system, step control automatic filling machine system, programmable controller (PLC), man-machine interface, conveyor belt frequency conversion speed regulation system, pressurization pneumatic part and photoelectric sensor, which is composed of machine, gas and electricity integrated automatic control system.

Liquid filling machine adopts programmable logic controller as its control body. Filling scale in the hardware connection, PLC as the control system in the lower machine, and a variety of underlying equipment directly contact. The PLC filling system communicates with the host computer to obtain product data and production parameters, and according to various sensors in the production line, controls the action logic of the filling head, controls the speed of the filling conveyor belt, and controls the adjustment of the filling head driven by the stepping motor of the weighing filling machine to realize the accurate positioning of the two-dimensional and the precise positioning of the filling inlet baffles. According to the automatic filling volume provided by PLC, complete the compensation of servo drive and liquid filling capacity, drive the booster hydraulic cylinder action, realize the adjustment of filling capacity, and at the same time, the compensation volume information calculated by the compensation algorithm is added to the adjustment of filling capacity.