Patent ID: 6485402
Filing Date: 2002-11-26
Classification: B31F,F26B

Abstract:
A heating arrangement for a moving material web, the heating arrangement including:(a) a heating roll for receiving the moving material web at a looping angle around a periphery thereof, the heating roll adapted to rotate about a heating roll axis; (b) first and second guide mechanisms for the material web, which, while maintaining their relative positions to each other, are adapted to pivot together in a pivotal movement around the periphery of the heating roll between a position corresponding to a minimum looping angle and a position corresponding to a maximum looping angle; (c) the first guide mechanism determining the looping angle at which the material web loops around the periphery of the heating roll; (d) the second guide mechanism being arranged relative to the first guide mechanism such that in the position of the first and second guide mechanisms corresponding to the maximum looping angle, a portion of the material web not directly wrapping around the heating roll is held at a distance from the periphery of the heating roll by the second guide mechanism; and (e) a third guide mechanism connected in a fixed relationship with the first and second guide mechanisms during the pivotal movement and positioned with respect to the first and second guide mechanisms for completely lifting the moving material web from the periphery of the heating roll at the position of the guide mechanisms corresponding to the minimum looping angle.