Automatic filling machine in the collection of the first data before the time has been spent about 200ms, each collection of a data interval of about 40ms, then to be collected within 750MS to stabilize the data, it is necessary to make the weighing module to be stabilized before the 13 data. After repeated tests using a special predetermination algorithm, the actual effect of the error is basically within ±0.03g, taking into account the height of each device in the factory commissioning of the scale installation position and the final will be the installation of the scale height deviation, will inevitably lead to a change in the compensation coefficient, the later has been introduced into the PLC full-automatic compensation mechanism integrated with the application of embedded technology, smart card technology, network communication technology, industrial Ethernet technology, artificial intelligence control technology, and the use of the technology. Ethernet technology, artificial intelligence control technology, distributed database technology and the whole network distributed control technology, realize the filling control and hierarchical management, based on the WINDOWS environment programming software suite, support ladder diagram (LD), instruction statement table (IL), sequential function charts (SFC) and other multi-language modes, online programming, diagnostics and online simulation debugging and other functions, can support the MODBUS, MODBUSPLUS, UNITELWAY and other communication protocols or communication buses. Can run a variety of configuration platform, full Chinese menu, convenient configuration, alarm function in various ways, with fast sampling speed, strong function, high reliability and so on; real-time historical trend curve production is simple, and other applications such as VisualBasic, VisualFoxpro, EXCEL, etc. to achieve a seamless link, flexible and convenient to realize the data call and report printing. Position servo control is used to precisely control the stroke of the piston cylinder, which also achieves the purpose of precisely controlling the filling volume. Acquisition of liquid viscosity, temperature, pressure, through a certain compensation algorithm, to achieve the piston cylinder stroke compensation, the DSP receives the position command signal from the PLC, the PLC gives the quantitative weight and compensation superimposed on the weight, as the total quantitative given quantitative signals through the composite feed-forward controller regulation, the formation of speed command signal, speed command signal and speed feedback signal comparison deviation signal through the speed loop proportionality The current command signal is generated after adjustment by the integral controller, and after vector transformation in the current loop, the torque current is output by the SPWM to control the operation of the AC servo motor, and the number of pulses generated by the rotary encoder per revolution controls the filling process.

The automatic filling scale is equipped with "start", "stop" and "zero" buttons and "status indicator". Display, manual control or automatic control, can be combined with pumps and other power equipment, but also with solenoid valves, electric valves, pneumatic valves and other equipment, as long as the selection of the corresponding power, we can also provide matching equipment.

Liquid filling scale adopts fully automatic production from the fetching link of lifting barrels, only need to place the barrels of the same specification and model neatly in the designated position, the professional manipulator will accurately take out one barrel at a time, and accurately transport the barrels to the bottom of the filling nozzle through the power track. Liquid filling machine when the barrel reaches the filling position, the proximity switch senses the filling barrel and transmits the sensing signal to the PLC, the PLC controls the conveyor motor to stop, the lifting cylinder starts to rise under the control of the PLC, and at the same time, it drives the roller arm structure to rise to the maximum position of the cylinder's stroke, the lifting cylinder stops rising, and the synchronous motor starts to start to drive the roller arm to move, and the filling barrel can rotate under the drive of the roller arm. The photoelectric sensor above the barrel mouth and the filling head are both in the barrel mouth rotating track circle, the filling barrel rotates to the photoelectric sensor directly under the photoelectric sensor, the photoelectric sensor senses the edge of the mouth of the filling barrel will be transmitted to the signal to the PLC, the PLC according to the signal of the photoelectric sensor will stop the synchronous motor movement. When the barrel mouth is detected, the cap suction device will rotate to the upper part of the barrel mouth under the drive of the cylinder to suck the cap of the barrel, and return to the original position after completing the cap suction action. When the cap is sucked, the quantitative filling process begins, PLC control rodless cylinder drives the filling gun into the filling barrel for liquid filling, the weighing module can sense the weight change in the filling barrel to realize the quantitative filling of liquid. After the end of liquid filling, the meter will transmit the end of filling signal to PLC, and PLC will end the quantitative filling process according to this signal.PLC controls the rodless cylinder to drive the filling gun to rise to the initial position, and the cap suction device will rotate to the top of the filling barrel to place the cap on the mouth of the filling barrel. The conveyor motor starts to convey the filled pail to the specified position.