METHOD AND EQUIPMENT IN A PAPER/BOARD MACHINE FOR REGULATIONOF THE DIFFERENCE OF DRAW

摘要

The invention concerns a method and an equipment in a paper/board machine for regulation of the difference of draw. In the solution in accordance with the invention, the difference of draw in the web (W) is regulated on the basis of the measured tension of the web (W). Preferably, the regulation of the difference of draw takes place by regulating the drives at the inlet and/or outlet side of a web run (F1, F2) not supported by a wire.