The flow of the liquid filling machine is generally: the boxes with empty bottles are stacked on the tray, and the conveyor belt is sent to the unloading tray machine, the trays are unloaded one by one, and the boxes are sent to the unloading machine with the conveyor belt, and the empty bottles are removed from the conveyor. The box is taken out, and the empty box is sent to the washing machine through the conveyor belt, cleaned, and then transported to the side of the boxer to fill the bottle containing the beverage. The empty bottle taken out from the unloader is sent to the bottle washer for disinfection and cleaning by another conveyor belt. It is inspected by the bottle inspection machine and enters the filling machine and the capping machine after meeting the cleaning standards. The beverage is filled into the bottle by a filling machine. The bottle with the beverage is sealed by the capping machine and transported to the labeling machine for labeling. After the label is attached, it is sent to the packing machine and then sent to the stacking tray machine and stacked on the tray to be sent to the warehouse.