The automatic filling machine adopts Siemens S7-200CPU226cnDC/DC/DC PLC as the core control, meanwhile, it extends EM235 analog module for weight acquisition, and the upper computer adopts integrated embedded TPC1061Ti touch screen to realize the functions of status display, set value input and operation process monitoring, etc. The RS232 is compiled based on the VB platform, and the functions include Data acquisition, data processing, file generation and data printing. Acquisition of weighing module data to achieve the quantitative filling of liquid, EM235 analog input channel to achieve the quality of the canned measurement, to ensure that the start / stop can be immediately connected and cut off the inflow of liquid, in the manual / automatic switching is achieved through the two-speed selector buttons, and, secondly, the start of the manual filling is achieved through the button. Generalized industrial computer man-machine interaction interface form, with data control, alarm, graphics and data display and other functions. According to the set requirements to complete the material proportioning control as well as various data management in the production process, according to different filling system selection of variable frequency controller, optional open-loop or closed-loop control function, you can realize the intelligent control of the system.

The weighing and filling machine adopts the configuration software for monitoring interface, which can quickly build up the components and generate the upper computer monitoring system, through the data collection and processing of the scene, with animation display, alarm processing, process control. Real-time curve, historical curve and report output. In order to achieve the above monitoring requirements, in the monitoring interface design using Haniwa effect, flow fast flow attribute settings simulate the dynamic filling process, through the addition of standard buttons to achieve manual/automatic selection, start, stop, emergency stop and manually open the pump solenoid valve, through the setting of the label display output attributes to achieve the quality of the filling of the real-time display of the set filling quality, the filling of the number of bottles set up and the number of barrels to be filled by displaying the current configuration monitoring screen, to complete the monitoring of the operation of the filling system, real-time curves, historical curves and report output. It can realize the real-time display of filling quality setting, the setting of the number of bottles to be filled and the display of the current number of barrels to be filled.

Liquid filling machine through the weight sensing and input pulse frequency fast and slow realization, when the frequency of the pulse occurs to reduce, the speed of the stepping motor decreases; when the frequency grows, the speed is accelerated. In order to achieve the purpose of metering size adjustable and improve the accuracy of metering, requires adjustable screw speed and positional positioning accuracy, the use of stepper motor control screw speed and number of revolutions, not only simplifies the mechanical structure, but also makes the control very convenient. Without overloading, the rotational speed and stopping position of the stepping motor only depend on the frequency of the pulse signal and the number of pulses, and are not affected by the change of load.

The weighing and filling machine displays the current filling quality, the number of filled barrels and other on-site working status through the screen in real time, and the corresponding operation can be carried out on the upper computer, through the interface for the selection of the filling mode and the operation of the buttons of start, stop and so on. It is possible to change the filling quality, the number of barrels and manually remove the tare weight (i.e. the quality of the filled bottle) when using different filling barrels. In order to realize the above monitoring requirements, the monitoring interface simulates the dynamic filling process by adopting Haniwa effect and fast flow attribute settings; it realizes manual/automatic selection, starting, stopping, emergency stopping and manually opening the pump solenoid valve by adding standard buttons; and it realizes the real-time display of the filling quality settings, the setting of the number of barrels and the display of the number of barrels, etc. by setting up the display output attribute of the labels, and it also realizes the monitoring of the running status of the filling system by setting up the monitoring screen. Filling system operation status monitoring.