The automatic Filling machine consists of a barrel feeding mechanism, an online weighing device, a main conveyor belt tracking filling device, a shaking and plugging device, and a barrel discharging device. The barrel feeding mechanism consists of a barrel feeding mesh belt, a barrel dividing screw small conveyor belt, and a dial. The small conveyor belt adds power to the transportation of the medicine barrel, allowing the barrel to be smoothly transported at the required speed. The structure of the online electronic weighing scale is independent of the entire transmission mechanism, ensuring the weighing environment. Combined with the weighing scale, high-precision weighing is achieved. The oscillation plugging device utilizes a cylindrical cam mechanism to achieve the tracking function of the filling machine, and uses dynamic sealing technology to complete the plugging process. The weighing and quantitative filling machine is designed for single head filling and is required to achieve a filling speed of one barrel per three minutes, with a filling error of ≤± 1%. During the process of filling medicine, the filling machine uses two online weighing devices to weigh the empty and filled medicine barrels separately. Each online weighing device is designed with a clamp for taking out and placing back the medicine barrels from the main conveyor belt. There must be sufficient space next to the medicine barrels that need to be weighed on the main conveyor belt for the clamp to enter and exit, to avoid tripping the nearby medicine barrels. This puts forward requirements for what kind of barrel feeding method to adopt.

The filling head of the automatic filling machine includes a jacket, a filling rod, and an inlet pipe. The jacket is a hollow cavity, and the right side of the jacket is equipped with an inlet pipe. The inlet pipe is connected to the hollow cavity of the jacket, and the other end of the inlet pipe is connected to the feeding tank through a servo motor. The lower part of the jacket is a filling nozzle, and the middle cavity of the jacket is equipped with a filling rod. The filling rod can float and be integrated with the jacket. The top of the jacket is equipped with a 0-shaped sealing ring, which is connected to the outside of the filling rod. The top of the jacket is also equipped with a locking nut to prevent the overflow of the filling material. The top of the filling rod is equipped with a blowing joint, and the filling rod is equipped with a hollow spacer inside, which is equipped with a flow tube. The bottom of the flow pipe is fitted with a flange through a flange hole, and the flange is provided with a through hole, The flange through-hole is connected to the shell through one end of the lower side of the filling tube body, and a cylinder is set on the outer end of the right side of the shell. A piston valve is set on the lower side of the filling tube body to ensure a constant discharge amount each time. A filling head is connected to the filling tube body on the lower side of the piston valve, and the material can be discharged through the filling head to achieve the filling work. A stopper is connected to the inner wall of the stone side of the shell on the left side of the cylinder, and a through groove is opened at the connection between the filling tube body and the shell. The cylinder works to drive the connected stopper to move inside the filling tube body, so that the flow rate of the liquid inside the filling tube body can be controlled through the stopper. The upper end of the filling tube body is threaded with a connecting cover. The middle and lower ends of the filling head are tightly attached to the filtering mechanism, and a bracket is fixedly connected to the right side of the filling head, The lower left end of the bracket is equipped with an electric push rod, and the left side of the electric push rod is connected to a dustproof plate. The connected dustproof plate is driven to move to the left by the electric push rod, and the dustproof plate can provide protection for the filling head.