Patent ID: 7131246
Filing Date: 2006-11-07
Classification: B65B

Abstract:
1. An apparatus for wrapping groups of rolls of products with a sheet of film to form a pack which has the shape of a prism; the apparatus comprising at least: a station for packaging and moving with a stepping motion in a predetermined direction, a succession of groups of products wrapped in a sheet of film, having at least one front side open and defined by two opposite flaps; means for closing the open side, acting on the two flaps of film, the closing means comprising a unit located at the side of the packaging station and comprising: two pairs of elements mobile along a vertical plane, alongside one another in the predetermined direction, and designed to allow the relative pairs of flaps of film of the two groups of products positioned one after another to be brought together and closed; first movement means for the unit, acting on the unit to allow synchronized movement of the two pairs of elements, respectively, in the same predetermined direction as the groups, for one group feed step, bringing together and closing the flaps of the pairs of groups, and a movement opposite to said predetermined direction over a distance equal to the distance previously traveled, simultaneously with a feed step of the groups to be packaged, positioning the unit at two further and subsequent groups of products to be closed.