The liquid tank material scale is an integrated mechanical and electrical computer control system. It adopts a single-chip computer with necessary measurement control interfaces and control software to achieve real-time dynamic detection and quantitative control of the mechanical discharging process. It is mainly composed of conveyors, weighing platforms, variable frequency motors, cylinders and other components. The Filling system ensures rapid handling in emergency situations. When a red "Start" button appears on the screen and the "Ready" signal is received, pressing the "Start" button can send an output signal to the PLC to start the filling process. Then, the instrument automatically removes the tare and begins filling. The "Start" button also disappears, synchronously simulating the filling process until filling is completed. However, when the liquid phase valve for filling is fully opened and filling is in progress, in case of any abnormal situation, you can directly click on the "Emergency Valve Close" of the corresponding scale number on the upper computer. This will enable an emergency valve close signal to be sent when this scale encounters a special situation, that is, when no valve close signal is sent to the PI C, to ensure safe production.

The automatic Filling machine mainly accomplishes functions such as data collection, transmission, processing and device control. It receives the data sent by the card reader in a certain data agreement format and uploads it to the upper-level computer database for query and comparison in the machine database. The database returns a code to the single-chip microcomputer. The single-chip microcomputer judges and processes the code returned by the machine. If it is a valid code, it sends a close signal to the card reader. The single-chip microcomputer also acquires the empty bottle data on the weighing platform, compares this data with the pre-built form to determine the type and model of the container, and at the same time waits for the data input by the on-site workers from the on-site operation panel, such as serial numbers, employee numbers, passwords, etc. After the single-chip microcomputer acquires these data, it uploads them to the relevant database of the machine. After the single-chip microcomputer receives the confirmation information from the machine, The single-chip microcomputer issues a filling command, which drives the amplification circuit to open the large and small solenoid valves to start filling. During the filling process, the single-chip microcomputer of the filling machine acquires the weight data of the weighing platform in real time and makes judgments. When the weight value set by the program is reached, the single-chip microcomputer successively issues instructions to close the large and small solenoid valves to stop this filling work.