The automatic Filling machine consists of a two-level computer control network composed of programmable controller and Electronic scale, which is connected to the weighing instrument, control computer, PLC, inverter and other equipment with high intelligence and fast processing speed through the field bus. It is mainly composed of four parts: transmission device, filling device, suction capping device and testing electronic scale device. The transmission device is composed of a conveyor belt, a transmission gear, a conveyor belt, a conveying motor and a lifting cylinder. The filling device is composed of a filling gun, a filling barrel, a synchronous motor, a rodless cylinder and a roller arm. The suction capping device comprises a suction capping device; The electronic weighing device is composed of photoelectric weighing module, proximity switch and weighing module.

The Filling system is composed of three cylinders or oil cylinders (upper cylinder, lower cylinder, control cylinder), two check valves (upper valve, lower valve), a quantitative cylinder and pipelines and other accessories. The storage tank is located at a high level and is connected with the upper valve by a pipeline. The upper valve is divided into two parts by an elastic film, which can separate the material from the upper cylinder action part to ensure the health of the material. The lower part is the body of the check valve with spring return, which is connected to the storage tank 1 and the metering cylinder. The upper part of the valve is installed with the upper cylinder, and the piston rod of the cylinder controls the opening of the upper valve through the action of the elastic film. A control cylinder is also installed in the upper part of the upper cylinder, through which the stroke of the upper cylinder piston rod can be determined in two ways, and then the size of the upper valve opening is controlled. The quantitative cylinder is connected to the outlet of the upper valve, and connected to the lower valve through the pipeline, and through the movement of the piston, to realize the quantitative suction and discharge of the material. The structure of the lower valve is basically the same as that of the upper valve, but there is no control cylinder installed. The lower part of the lower valve is the filling head through which the material is filled to the container. A mesh grid is installed at the outlet of the filling head to prevent the material from leaking due to its own weight with the help of the surface tension of the material. When the valve system is cleaned, the outlet of the filling head can be connected to the spare cleaning pipe joint.

In the filling working state, the piston of the control cylinder is located in the extended position, and the movement of the upper cylinder and the plug rod is determined within a small stroke range, so that the check valve is in a small opening. In the suction, the upper cylinder piston rod is extended, the upper valve valve is opened, the lower cylinder piston rod is returned to reset, so that the lower valve, the valve is closed, and then the piston of the quantitative cylinder is retreated, and the material is quantitatively sucked into the cylinder. Do not fill the container at this time. When filling, the piston rod of the upper cylinder is returned to reset, the valve of the upper valve is closed, the piston rod of the lower cylinder is extended, so that the valve of the lower valve is opened, and then the piston of the quantitative cylinder moves forward to send the material out and fill the container through the lower valve.