Patent ID: 11186397

Abstract:
A method for packaging one or more tobacco-filled boxes (13) in a plastic bag (21) comprises the following steps of—placing the box in a vacuum chamber (3, 5) through an input (7),—closing the vacuum chamber, then evacuating the vacuum chamber and thereafter creating an over-pressure nitrogen atmosphere in the vacuum chamber—putting a bag open at one end around a rectangular guide profile (19) open at both ends, where the other, closed, end of the bag shuts off one of the ends of the rectangular guide profile,—positioning the rectangular guide profile with the end not shut off by the bag in front of a shut off output (9) of the vacuum chamber and coupling the rectangular guide profile in a gas-tight manner to the output of the vacuum chamber,—opening the output of the vacuum chamber and guiding the box into the bag via the rectangular guide profile, and—folding the open end of the bag immediately followed by the sealing of the bag. By processing the box in the vacuum chamber before a plastic bag is put around the box, it is better to create underpressure in the box and flush it with nitrogen because the box has not yet been shut off on three sides by the plastic bag in a gas-tight manner. As a result, a better atmosphere can be created in the box or the optimal atmosphere in the box can be created in a faster manner.