Patent ID: 8858413
Filing Date: 2014-10-14
Classification: B29C,B65C

Abstract:
1. A device for forming sleeve-like foil envelopes from a flat strip of foil material, comprising: supply means for supplying the flat strip of foil material; cutting means for cutting the flat strip of foil material through over an entire width thereof so as to obtain a foil envelope strip of a specific length having a first and a second free edge; at least one enveloping unit, around which the foil envelope strip is to be wrapped; connecting means for joining said first and said second free edge together, so as to obtain a sleeve-like foil envelope; and discharge means for discharging the sleeve-like foil envelope thus formed from the enveloping unit, wherein said supply means comprise a cylindrical supply tube having a curved surface, over which the flat strip of foil material is to be passed, wherein the direction of travel of said flat strip of foil material is oriented at an oblique angle relative to the axial direction of the longitudinal axis of the cylindrical supply tube such that, when the strip of foil material is fed over said curved surface, the strip of foil material is given a curved cross-section in a direction transverse to its length, and wherein the supply means further comprises at least one drivable conveying roller to be supported on said curved surface, which roller is capable of feeding the strip of foil material over the curved surface at said oblique angle.