Patent ID: 6328194
Filing Date: 2001-12-11
Classification: D21F

Abstract:
A device for handling a material web, comprising:a suction roll having a perforated jacket;a porous support belt guided over said suction roll between a take-on region and a lift-off region, wherein a surface of said porous support belt is adapted to guide the material web and said surface adapted to guide the material web is arranged away from a surface of said suction roll;said suction roll comprising suction zones adjacent to an inner side of said perforated jacket, wherein a first suction zone, arranged in said take-on region, is coupled to a vacuum source, and a second suction zone, arranged in said take-off region, is coupled to said vacuum source through said first suction zone; andone of an outer web holding box and a suction tube positioned subsequent to said take-off region, relative to a web travel direction, and arranged to be suctioned by said second suction zone.