Liquid filling machines can be classified into normal pressure filling machines, pressure filling machines and vacuum filling machines according to the filling principle.
Atmospheric filling machines are filled with liquids under atmospheric pressure with their own weight. This kind of filling machine is divided into two kinds of time filling and constant volume filling. It is only suitable for filling liquids with low viscosity without gas, such as milk and wine.
Pressure filling machines are filled at higher than atmospheric pressure and can also be divided into two types: one is that the pressure in the tank is equal to the pressure in the bottle, and the bottle is filled with liquid and flows into the bottle and is called Equal pressure filling; the other is that the pressure in the reservoir is higher than the pressure in the bottle, the liquid flows into the bottle by the pressure difference, high-speed production lines use this method. Pressure filling machines are suitable for the filling of liquids containing gas, such as beer, soda, champagne and so on.
The vacuum filling machine fills the bottle at a pressure below atmospheric pressure. The filling machine has a simple structure and high efficiency, and has a wide range of viscosity adaptability to materials, such as oil, syrup, wine, and the like.
The flow is generally as follows: boxes with empty bottles are stacked on the trays and are sent to the unloading trays by conveyor belts. The trays are unloaded one by one. The boxes are sent to the unpacking machine with the conveyor belt, and the empty bottles are taken out of the box. The empty box is sent to the washing machine through the conveyor belt, cleaned and then transported to the boxing machine so that the bottle containing the beverage can be loaded therein. The empty bottles taken from the box loader are sent to the bottle washing machine for disinfection and cleaning by another conveyor belt. After inspection by the bottle inspection machine, the bottle bottles meet the cleaning standards and enter the filling machine and capping machine. The beverage is filled into the bottle by the filling machine. Bottles filled with beverages are capped and sealed by a capping machine and transported to a labeling machine for labelling. After being labeled, they are sent to a boxing machine to be loaded into a box, and then sent to a stacking tray to be stacked on a tray and sent to the warehouse.
The capping machine selects the appropriate model depending on the type of cap (crown cap, cap, cap, etc.) used.