Filling of Film Winding Machine by Pure Vacuum Method

Pure vacuum filling diagram is a typical principle of pure vacuum filling method. The pressure in the filling system should be lower than the atmospheric pressure. The sealing block of filling valve should also open the valve when it resists the container. Because the container connected with the vacuum chamber is in a vacuum state, the liquid can be quickly pumped into the container until it is filled into the predetermined liquid level. Usually eventually an equal amount of liquid will be pumped into the discharge pipe and recycled after entering the overflow tank.

The process of vacuum filling is as follows:

Vacuum in bottle;

Intake and exhaust;

Stop feeding liquid;

Remaining liquid reflux (the remaining liquid in the exhaust pipe passes through the vacuum chamber to the storage tank).

Vacuum method can increase the filling speed, thus reducing the time of product contact with air, and easily prolong the storage time of product. Its fully closed state also limits the evaporation of active ingredients in product.

Vacuum method is suitable for filling liquids with slightly higher viscosity such as oils, syrups, vitamin-containing liquids which should not be exposed to air, such as vegetable juice, fruit juice and toxic liquids (such as pesticides, chemical medicines, etc.).

Above is the introduction of pure vacuum filling of wrapping film packer. For more information, the working principle of wrapping film machine can be consulted by telephone.