The control system of the weighing and dividing Filling machine sends the empty bucket to the filling position, aligns the bucket mouth with the spray gun mouth, presses the "start" button of the machine, and the filling machine spray gun enters the bucket under the drive of the cylinder; When the liquid filling scale detects that the spray gun is in place, the bottom valve opens and the nitrogen filling valve starts to fill dry nitrogen gas into the barrel through the filling port, replacing the air inside the barrel with nitrogen gas and accelerating the drying of the barrel wall to ensure filling safety. When filling the weighing and filling machine with nitrogen, it should be ensured that the air in the container is completely replaced. The specific nitrogen filling amount can be adjusted by the weighing instrument time. After filling a certain amount of nitrogen, the nitrogen filling valve is closed, and the weighing instrument automatically removes the tare weight from the empty bucket on the scale. Then, the fast and slow feeding ball valves are opened simultaneously; First, quickly add the material. The spray gun stays at the lowest position for a period of time before starting to rise and fill below the liquid level. In the middle, as the liquid level rises, it stays at 3 places and stops at the barrel mouth before slowly adding the material; When the filling amount of the filling machine reaches the preset advance amount, the ball valve and bottom valve close; The spray gun rises outside the barrel.

The rolling chain weighing mechanism of the Liquid filling machine drives the chain drag rod to push the filling barrel, realizing the automatic conveying process before and after filling. The filling barrel and filling weight are automatically detected by an electronic weighing scale. The filling gun lifting mechanism includes a frame, a chain, an electric machine, and an explosion-proof weighing scale. The frame includes a bottom plate, side plates, and support legs. The upper end of the bottom plate is equipped with two parallel side plates, and the lower ends of the two side plates are connected by connecting rods. The two ends of the side plates are equipped with support legs. The motor is fixed on the outer side of the side plate, and the output shaft of the motor is connected to gears. The inner side of each side plate is equipped with a chain, which cooperates with the gears. The chain drag rod is evenly connected between the two chains, and the upper end of the side plate is equipped with a proximity switch for detecting the chain drag There are stainless steel weighing scales connected to the bottom plate between the block side plates, On both sides of the double-layer weighing scale, there are first feeding rollers connected to the side plates. A support rod is connected between the two side plates, and the upper end of the support rod is equipped with a first guardrail seat. The end of the first feeding roller is connected to the first guardrail seat, and the upper end of the first guardrail seat is equipped with a first guardrail. The inner side of the side panel is equipped with a support plate that supports the chain, and one end of the support plate is equipped with a connecting plate that is connected to the side panel. The waterproof electronic weighing scale includes a weighing board, a support seat, and a second feeding drum. The support seat is connected to the bottom plate, and the upper end of the support seat is connected to the weighing panel through the weighing board. Above the weighing board, there is a second feeding drum, and the two ends of the second feeding drum are connected to the weighing panel through a second guardrail seat. The two ends of the support seat are connected to the bottom plate through screws. The upper end of the second guardrail seat is equipped with an adjustment block, which is equipped with a fixed rod. The end of the fixed rod is equipped with a second guardrail aligned with the first guardrail.