Patent ID: 6872176

Claim:
A device for unfolding of folded boxes, comprising a magazine for receiving of flat folded-box sleeves, a removing device for individual removal of the folded-box sleeves from the magazine and for feeding the folded-box sleeves to an unfolding device wherein the folded-box sleeves are partially unfolded along a compressing section, the unfolding device including, after the compressing section, a chute for precise fitting receipt of the partially unfolded folded-box sleeves, an output device for removing the partially unfolded-box sleeves from the chute, the output device including lugs each said lug having a lug surface configured to align with a sidewall of the partially unfolded folded-box sleeves, each said lug having an angle (α) in a range of 20 to 25 degrees defined by the lug surface and a normal perpendicular to a path of travel of the partially unfolded folded-box sleeves in the chute, an expansion chamber following the chute whereat the partially unfolded folded-box sleeves are fully unfolded, and first and second devices provided at the expansion chamber and operated at the same speed to hold the fully unfolded box sleeves at diagonally opposite edges and to forward the fully unfolded box sleeves.