Patent ID: 7428868

Claim:
A device for cleaning rolls in printing machines, especially machines for executing prints on web-shaped paper-like material used in producing tissue paper, napkins, toilet paper and the like, the device comprising: a compressed air feeding means; a suction means for producing aspiration; a steam feeding means; a first box-shaped body having lateral inner walls; a second body having lateral outer walls, said second body being located within said first box-shaped body; a base element having a surface defining a first aperture, a second aperture and a third aperture, said first aperture and said second aperture being in communication with said suction means, said third aperture being in communication with said steam feeding means; a nozzle for directing a steam jet toward a surface of a roll to be cleaned, said nozzle being connected to said steam feeding means, said second body supporting said nozzle; a suction chamber defined by said lateral inner walls of said first box-shaped body, said lateral outer walls of said second body and said surface of said base element, said nozzle being located within said suction chamber, said suction chamber being connected to said suction means, said suction chamber being disposed opposite an area of the roll such that said area corresponds to the surface of the roll that receives the steam jet from said nozzle a plurality of holes located opposite the surface of the roll to be cleaned, each hole being connected to said compressed air feeding means.