Calender roller scraper beam - has bar extending close to other roller to improve access to rollers and doctor blade

摘要

The scraper beam assembly, for calender and other roller systems, has a bar (11) at the carrier (1) for the doctor blade at one roller which extends to a point close to the other roller (16). The bar (11) is pref. adjustable in relation to the roller (11), and can have a number of adjustable sections along its length. The bar (11) is combined with a web insertion unit (17) and the doctor blade (4) is mounted to a moving holder (3). Pressure is applied to the doctor blade (4) to bring it to bear against its roller (18), and the blade holder (3) pivots on an axis (15) generally parallel to the gap (19) between the two rollers (16,18). The blade (4) is fitted to the holder (3) through a floating mounting. A drive system gives the doctor blade (4) an oscillating movement parallel to the roller gap. ADVANTAGE - The assembly improves the access to the components when a change of doctor blade is required or when rollers of different dia. have to be fitted of changed.