Paper making calender scraper blade held in a guide for withdrawal and replacement

摘要

In paper making process to remove a scraper blade from a calender, the blade is fitted in especially a guide assembly which is withdrawn laterally by 0.4 to 1.2 m. The blade is then removed from the guide while in position alongside the calender and replaced. The scraper blade is presented to the roller and locked in position when in use. The lock is unfastened and moved away from the roller prior to lever-assisted blade release and withdrawal. Also claimed is a scraper blade (7) assembly with a powered (23,24) guide (15) located between the beam (10) and blade. The power (23,24) operates in two directions.