Device for cutting a pile of sheets with a disk-knife

In a device for conveying and cutting a pile of sheets, the combination of:

• a frame;
• at least one disk knife supported on said frame for rotation about its axis, said disk knife having two sides, one of said sides having a circumferential planar portion, said planar portion being surrounded by a circular cutting edge, at least said planar portion of said one side and said cutting edge defining a common plane extending at right angles to said axis of rotation;
• a conveyor for feeding the pile of sheets to said disk knife in a conveying direction, said conveyor including first and second elongated, flexible, endless conveyor elements having clamping parts, deflecting means for supporting said conveyor elements on said frame for revolving movement along endless paths so that the clamping parts of said conveyor elements extend along each other and the circumferential surfaces of said clamping parts confront each other and define a clamping gap for the pile of sheets, said first conveyor element being located farther away from said axis of said disk knife than said second conveyor element and being formed as a first endless belt having a portion forming a counter knife and a first and a second surface said first surface confronting said clamping gap, said disk knife and said first endless belt being mutually so arranged that a part of said planar portion and cutting edge overlaps and contacts said counter knife of said first endless belt, so that said disk knife and said counter knife of said first endless belt constitute a cutting device for cutting the pile of sheets with a scissor-like cut in a cutting range of said conveyor;
• a first set of rolling bodies supporting said second surface of said first belt at least in said cutting range;
• and
• a first support structure supported on said frame and having a support surface for supporting said first set of rolling bodies.