The hopper screw scale can achieve continuous filling of containers and bottles on the rotating worktable. The rotating table has multiple stations, which can perform filling, sealing, and other processes. To ensure accurate filling and sealing at these stations, the Filling machine needs to be equipped with a positioning device. According to the control requirements of the filling and sealing stations, the empty bottle station is used for input, and the output station finally receives the filled containers. The empty containers are conveyed by a conveyor belt into a fixed worktable with less surface friction, and then rely on inertia to enter the groove of the rotating table station. After the rotating table rotates, it drives the container bottle into the station and stops rotating to perform filling. Then the rotating table rotates again, driving the filled container bottle into the station and stopping rotating to perform sealing. After that, the rotating table rotates again, driving the processed container into the station, and then it is automatically output through the conveyor belt and placed properly to complete the processing of the container bottle. 

The screw hopper scale uses a conveyor belt for the continuous transportation of containers. The containers are evenly and regularly distributed on the conveyor belt. After entering the workstation, they sequentially complete the processing of the predetermined procedures. After all the procedures are completed, the containers are output by the conveyor belt to the designated position. It is driven by an electric motor and, through the selection of the mechanism, the transmission and conversion of motion can be achieved to realize automation. The Filling system consists of the hopper scale, the support, the filling port mechanism and the electric motor. The hopper scale is equipped with a weighing sensor to control the operation of the feeding system. When the material reduces to a certain position and is insufficient for filling, the motor of the feeding system is activated to start feeding materials into the hopper. When the materials in the hopper reach the top position, the weighing sensor controls the feeding motor to close and stop feeding. The screw in the weighing hopper weighs the materials, using a variable-frequency motor, and the rotational speed can be adjusted to adjust the filling volume and filling speed. The landing support below the hopper scale is fixed on the support, and the control cabinet is installed on the support. The bottom of the support is equipped with adjustable feet, allowing the filling port height to be adjusted to suit different height tank types for filling. 

The hopper scale can achieve precise weighing of materials by controlling the rotational speed of the screw. This can further improve the weighing accuracy. The prerequisite for improving the weighing accuracy is to enhance the accuracy of controlling the number of screws. A toothed belt drive can be used. Through a tower-shaped structure with small pulleys, by changing the position of the toothed belt on the pulleys, the rotational speed of the screw can be accurately calculated. To further improve the accuracy, an optical encoder can be equipped on the screw. The power of the stirring motor is transmitted to the stirring rod through the transmission mechanism. The stirring rod can effectively change the stress distribution of the powder, thereby improving the flow state of the powder and achieving the purpose of stabilizing the powder bulk density. Finally, the measurement accuracy is improved. When starting the measurement, the measurement motor makes the small pulley drive the large pulley to rotate, and the optical encoder also starts to rotate. After receiving the signal, the electromagnetic clutch causes the screw shaft to rotate after engaging with the clutch and the large pulley. When the measurement screw shaft and the optical encoder have rotated the required number of turns, the electrical control system receives the signal, and the large pulley and the clutch are disengaged, and the brake is also activated. Packaging begins, and after the packaging is completed, the above actions are repeated.