Automatic Filling machine is a production equipment that mainly fills low-viscosity liquid and uses the method of controlling weighing and quantification to fill liquid materials into containers. The filling machine mainly consists of rack, conveyor table, positioning mechanism, Filling system, linkage compacting device, weighing module, liquid storage tank and control box. The main working procedure is that the conveyor belt on the conveyor table delivers the empty bottle at a speed of 1.2m/s. When the first empty bottle is about to arrive at the predetermined position, the front stop bottle rod in the positioning mechanism pops out under the control of the front photoelectric head to block the empty bottle, so that the first empty bottle in each batch is in the accurate weighing position; After the photoelectric head calculation set batch number; The back stop rod acts as the isolation rod between batches to ensure that the number of empty bottles to be filled in each batch (between the front stop rod and the back stop rod) is the set number of batches. When the rear stopper rod is extended, the conveyor belt stops conveying to avoid friction between the bottom of the stationary bottle and the surface of the moving conveyor belt during filling, to prevent unnecessary wear of the bottom of the bottle, and to ensure the stability of the filling bottle, which is conducive to filling.

After the conveyor belt stops weighing and stabilizing, the filling system inserts the eight outlet nozzle into the eight empty bottles at the same time and compresses the eight bottle mouths at the same time by relying on the pressure and flexibility of the spring. The flexibility of the spring can effectively make up for the error caused by the free height of the eight bottle mouths, and improve the sealing adaptability of the filling machine to various filling bottles. At this time, the diaphragm pump starts and begins to fill the eight empty bottles with liquid at the same time. As the liquid level continues to rise, the air in the bottle is discharged through the liquid return pipe. When the set control weight height (filling amount) is reached, the liquid return pipe begins to contact the liquid level and begins to return liquid. The liquid higher than the return pipe mouth is returned to the liquid storage tank to ensure that the liquid level in the empty bottle is always the set value. When the eight empty bottles in the batch are fully filled and reach the set control level height, the diaphragm pump automatically stops running, the filling system stops filling liquid into the empty bottle, adjusts the rise of the mount, and raises the eight outlet nozzle at the same time. The liquid nozzle is completely out of contact with the filled batch (8 bottles), and the conveyor belt starts to send out the 8 bottles (a batch) filled with liquid, and at the same time, the next batch (8 bottles) are sent into the empty bottle to be filled, and the filling machine completes a cycle.