The Filling machine control system will send the empty barrel to the filling position, align the barrel mouth with the spray gun mouth, press the "start" button, and the spray gun of the filling machine will enter the barrel under the drive of the cylinder; Liquid filling scale When the detection gun is in place, the bottom valve is opened, and the nitrogen filling valve is started to fill the dry nitrogen into the barrel through the filling port, so that the air in the barrel is replaced by nitrogen, and the drying of the inner wall of the barrel can be accelerated to ensure the safety of filling.

When the weighing and filling machine is filled with nitrogen, it should ensure that the air in the container is completely replaced, and the specific amount of nitrogen can be adjusted by the weighing instrument time. After a certain amount of nitrogen is filled, the nitrogen valve is closed, and the weighing instrument automatically removes the tare weight from the empty drum, and then the fast and slow charging ball valve is opened at the same time; The spray gun starts to fill at the liquid level after staying at the lowest position for a period of time, stops at the mouth of the barrel with the rise of the liquid level for 3 places, and then slowly adds the material; When the filling amount reaches the preset advance amount, the ball valve and the bottom valve are closed; The gun rises out of the barrel.