The electronic filling barrel scale mainly consists of a filling gun device, a PLC system control part, a Weighing system, a filling frame, and conveying equipment, etc. It adopts the liquid surface filling method and is suitable for filling various non-foaming liquid materials. The unique filling head device is easy to operate, with rapid and precise filling; and it ensures the leakage of residual liquid to the maximum extent when the filling is completed. The liquid Filling machine is composed of a feeding pump, an electromagnetic valve, pipelines, and a weighing system. When the liquid level in the reaction tank is lower than a certain position, the electromagnetic valve opens, and the liquid flows into the mixing tank through the feeding pump and pipelines. When the liquid reaches the liquid level height, the electromagnetic valve closes. After the filling is completed, the liquid flows from the lower side of the storage tank through the pump and pipelines back to the upper part of the mixing tank (clockwise) in a continuous circulation. When the float liquid level control detects that the liquid level is lower than a certain position in the reactor, the electromagnetic valve receives the signal. The valve bottom opens, and part of the liquid flowing in a clockwise direction flows to the filling barrel, replenishing the liquid level in the reactor. When the liquid level reaches a certain set weight, the float liquid level control sends a signal, causing the electromagnetic valve to be de-energized and the valve body to close. The quantitative filling machine has various alarm monitoring functions such as high/low liquid level limits alarms, which have the functions of automatic parameter modification, automatic recording of various alarms, and improving the traceability of the system and enhancing the security of the system: the hardware fault diagnosis and status monitoring function of the monitoring system, the historical data acquisition and automatic archiving storage function: it has various types of data query functions.

The Filling system mainly consists of a vinylon touch screen, PLC, rotor pump, servo driver, and servo motor, etc. The touch screen is connected to the PLC through an RS485 communication cable and exchanges data in real time to complete the system's parameter setting, flow display, operation and alarm functions, etc. The number of rotations and speed of the rotor pump are implemented by the servo motor, and the rotation angle and speed of the servo motor are determined by the pulse signal output by the servo driver. The driver output is controlled by a PC, and PIC is controlled according to the set filling volume and speed. Through the friendly human-machine interface (HMI) of the touch screen, parameters can be set (mainly including filling volume setting, filling adjustment, speed setting, etc.), and the instructions are transmitted to the PLC to control the operation of the entire system.

The filling Electronic scale includes a cylinder for holding liquid and an outlet channel connected to the cylinder. The cylinder includes a first piston cavity and a second piston cavity, and the top of the cylinder has a cap cavity, which is connected to the two piston cavities. These two piston cavities each have a piston; the bottom of each piston is connected to a rigid connecting rod; these connecting rods extend downward and protrude from the bottom of the cylinder; outside the cylinder, the two connecting rods are connected to a linkage mechanism that can simultaneously make the two pistons move in opposite directions; it also includes a measuring element that can indirectly measure the liquid volume by measuring the mechanical movement of the linkage mechanism. The linkage mechanism preferably uses a double-speed gear structure. The electrical control part consists of a stabilized power supply, quantitative control, drive and counting, etc. When multiple electronic scales are used, the quantitative control and drive parts are the same, and the control is pre-adjusted with a standard quantitative filling target volume. The entire electronic scale control the relay contacts close, the input electromagnetic valve is connected and starts to fill the quantitative filling gun with liquid, and when the liquid level in the quantitative electronic scale reaches the given capacity, the electrode is connected to the circuit, the suction of the control circuit is attracted, the normally closed contact is disconnected, and a negative pulse signal is output to the drive part to form a stable circuit, and the material is discharged into the bucket, and the liquid level in the quantitative filling gun begins to drop.