Patent attributes
The device for erecting flat-folded tubular blanks supplied in flat-folded form comprises a collecting group provided with first gripping means which are mobile between a pick-up station of the single tubular blanks from a store and an opening station of the single tubular blanks. An opening group is arranged in the opening station and provided with second gripping means for gripping the single flat-folded tubular blanks at a second surface thereof, opposite the first surface engaged by the first gripping means. The second gripping means are mobile between a gripping position of the single tubular blanks and a distanced opening position thereof. A folding organ is destined to progressively engage a free side of the single tubular blanks during the course of opening, for completing the erecting of the tubular blanks.
