According to different packaging principles, liquid packaging machine can be divided into atmospherical pressure packaging machine, pressure packaging machine, as well as vacuum packaging machine.
Atmospherical Pressure Packaging Machine
Atmospherical pressure packaging machine does packaging by the liquid self weight in the atmospheric pressure. This type of packaging machines is divided into the timing packaging and constant volume packaging, which are only suitable for packaging low viscosity gas-free liquids such as milk, wine.
Pressure Packaging Machine
Pressure packaging machine does packaging in pressure higher than atmospheric pressure, which can also be divided into two types: one is packaging by liquid weight flowing into the bottle, with equal pressure of the liquid storage cylinder and the bottle; another is packaging by differential pressure, with liquid storage cylinder pressure higher than the pressure of the bottle. High-speed production lines usually apply this method. Pressure packaging machine is suitable for packaging liquid containing gas, such as beer, soft drinks, champagne.
Vacuum Packaging Machine
Vacuum packaging machine does packaging when the bottle pressure is lower than atmospheric pressure. This packaging machine is of simple structure, high efficiency, and wide application range to materials viscosity, such as oil, syrup, wine, etc. Its general process: boxes full of bottles are stacked on pallets and sent to depalletizer by the conveyor belt. Then the trays are removed one by one, and the boxes are sent to the unloading boxes machine by the conveyor belt. Empty bottles are removed from the boxes, and empty boxes are sent to the box cleaning machine by conveyor belt. After being cleaned, they are transported to the packing machine in order to putting bottles filled with drinks in. Empty bottles taken out from the depalletizer are sent to be disinfected and cleaned in the bottle cleaning machine by another conveyor belt. After being examined by bottle inspection machine, they will be removed to the packaging machine and capping machine. Drinks are filled into bottles by liquid packaging machine. Finished bottles are sent to cap machine and labeling machine. After being labeled, they are ready to be packaged by the container loader. At last, they will be sent to the stack tray machine and put into the storehouse.
Filling Pipeline Process
Filling pipeline process is basically the same of bottles for a variety of beverage. But because the drinks natures are different, different packaging machines and capping machines are applied. For example, except for an appropriate filling capping machine, beer packaging pipelines also need a sterilization machine. According to the shape of the cover, the capping machines applied are different (crown capping, cap screwing machine, corking, etc.).
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