FIELD: packing and storage.
SUBSTANCE: invention relates to a method of feeding film sheets into a packaging unit of a packaging device. Technical result is achieved by method, where package unit (8) contains lower (22) and upper (21) devices, which interact, determining packing chamber (24). In the first operating state of package assembly (8), the upper and lower devices (21, 22) are spatially separated from each other and package chamber (24) is open, and in the second operating state of packaging unit (8), packaging chamber (24) is closed, preferably tightly, relative to the atmosphere outside device (1). Method includes a step for unwinding an uncut film from roll (10) of a film supply unit and placing it in a film cutting unit. Then, uncut film is cut to produce one or more cut film sheets (18). Note here that said assembly cuts uncut film to produce cut film sheets (18) outside packaging chamber (24) of the packaging device and before feeding cut film sheets into the packaging chamber. Then one or more cut film sheets (18) are fed into packing chamber (24). Step of feeding one or more cut film sheets (18) into packaging chamber (24) is carried out by means of transfer device (7) comprising support structure (16), comprising flat retaining surface (17) serving to produce at least one or more sheets of film (18), and a device acting on supporting structure (16) and performing relative movement of supporting structure (16) relative to package assembly (8) between a first position, in which supporting structure (16) is installed in the film cutting unit (6), and at least the second position in which supporting structure (16) is placed in packing chamber (24).
EFFECT: reduced consumption of thermoplastic film and increased efficiency of the device both for sealed packaging and for packaging in a modified gaseous medium, using heat-shrinkable or non-heat-shrinkable films.
21 cl, 31 dwg
