Device for applying medium such as paint or glue onto material sheet has mass damping device installed in cavity of roller and has at least one passive oscillation damper with mass equalling at least 15 per cent of mass of outer casing

摘要

The device for the applying of a medium onto a material sheet has at least two rollers (3,4) which form a nip between them. At least one roller has an outer casing enclosing an inner cavity, and at least one has an elastic surface. A mass damping device is installed in the cavity (15) of one roller and has at least one passive oscillation damper (21), the mass of which equals at least 15 per cent of the mass of the outer casing (14) and is preferably more than 20 per cent. The oscillation mass damper acts upon the outer casing of the roller.