Anordning som möjliggör ökad banhastighet vid en arkskärare i en massatorkmaskin, samt metod att forma ark till balar i en sådan arkskärare

摘要

The invention relates to an arrangement in the sheet cutter of a pulp-drying machine to enable an increase in the web speed to even more than 200 m/min, said sheet cutter comprising a slitter (2) and a cross-cutting mechanism (4, 5) as well as an overlapping mechanism (6) for overlapping cut sheets (16) for reducing the speed thereof prior to setting the sheets on a bale table (14). The arrangement of the invention includes at least one set of further overlapping implements (20, 21) for overlapping the sheets in at least two separate stages. The invention relates also to a method for increasing a web speed in the sheet cutter of a pulp-drying machine.