Control device for machine, particularly paper or cardboard machine for manufacturing sheet of fibrous material, has guide roller and roll shell

摘要

The control device (1.1) has a guide roller (3) and a roll shell (4). Unidirectional edge (2.1) and unidirectional ribbon (7) are arranged on a vacuum box (8) with a vacuum box width (B.8) in a direction of travel (L) directly by a guide roller. Two sealing elements (9.1,9.2) spaced from each other are arranged over the vacuum box width and sealed against machine clothing (5).