Rolling roller device for aluminium strip punching and cutting production line

The utility model relates to a rolling roller device for an aluminium strip punching and cutting production line. The rolling roller device comprises a rolling roller body and is characterized in that joint lugs are distributed on the rolling roller body and sleeved with adjustable expansion and shrinkage shells. Therefore, the diameters of the adjustable expansion and shrinkage shells can be controlled by rotation to ensure that the adjustable expansion and shrinkage shells are completely laminated to paper core inner holes of aluminium sheets and facilitate the rolling in a high-speed production. At the same time, due to an auxiliary fixing lug, the adjustable expansion and shrinkage shells can be prevented from bursting paper cores.