AUTOMATIC REMOVAL DEVICE FOR CHANGING ROLL IN MACHINES FOR THE PRODUCTION OF ROLLS OF PAPER OR SIMILAR

摘要

The invention relates to a device for changing roll in a machine for the production of a light material in the form of a strip of the type comprising means of rolling the material on a core or tubular bar and means for provision of an empty rod on changing a roll. The device is characterised in comprising a surface (80), for defining a channel (85) in cooperation with the surface of an empty rod (51), in which a jet of air is run, as produced by several nozzles (9).