Doctor system for rollers in papermaking machines comprises doctor blade mounted on hollow beam filled with lubricant which is sprayed from nozzles which adjust to maintain constant distance from roller as position of blade alters

摘要

The doctor system for rollers (2) in cardboard- and papermaking machines comprises a doctor blade (3) mounted on a rectangular hollow transverse beam (4). This is filled with lubricant (9) which is sprayed from nozzles (8) mounted on the beam and which adjust to maintain a constant distance from the roller as the position of the blade alters.