HEATED CONTROLLED DEFLECTION ROLL

摘要

A heated controlled deflection roll (10) including a center support (12) and a rotatable roll shell (14) surrounding the center support (12). A shoe assembly (20) connects the center support (12) and the inside surface (16) of the rotatable roll shell. The shoe assembly (20) includes a shoe (22) in contact with the inside surface (16) of the rotatable roll shell (14) and a bladder (24) positioned between the shoe (22) and the center support (12). The shoe assembly (20) has a length substantially equal to a length of the inside surface (16) of the rotatable roll shell (14). Free space within a chamber (26) within the rotatable roll shell (14) is filled with a heat transfer fluid and heater elements (30). The heater elements (30) have angled fins (34) for directing the flow of the heat transfer fluid in a helical pattern towards one end of the rotatable roll shell (14). The heat transfer fluid returns to the opposite end of the chamber (26) through a passage (36) through the center support (12).