Patent ID: 6210145
Filing Date: 2001-04-03
Classification: B29C

Abstract:
A calender for a material sheet of a thermoplastic material extruded by an extruder via a sheet die, comprising:a frame, a plurality of rolls for smoothing and cooling the material sheet coupled with the frame, a first roll being stationary, at least one second roll is adjustable, said second roll is arranged adjustable around and radially adjustable to the first stationary roll, each second adjustable roll is held rotatable at both its ends in bearings, said bearings being adjustably arranged on a guide car radially to an axis of rotation of the first stationary roll, said guide cars of each second adjustable roll being supported on arcuate guide rails separated from the bearing of the first stationary roll, said guide rails separated from the bearing of the first stationary roll, said arcuate guide rails arranged at a distance from the first stationary roll and having guideways for the guide cars extending in an arcuate path around the axis of rotation of the stationary roll, and each said second adjustable roll is stepless circumferentially adjustable by means of the guide cars on the guide rails around the stationary roll and said guide rails are connected to the frame.