Patent ID: 8083661

Claim:
A creasing machine for forming creases in sheets of flexible material, said creasing machine comprising: a creasing mechanism, a transport mechanism for transporting associated sheets of material through the creasing mechanism, and a control system for controlling operation of the creasing mechanism and the transport mechanism, said creasing mechanism including first and second creasing members and a drive system for driving the first and second creasing members, said first and second creasing members are arranged to move in the direction of movement of the associated sheet at a time when the associated sheet is creased and the second creasing member is moveable towards the first creasing member to produce a crease in the associated sheet located between those members, said control system is arranged to substantially match the speed of movement of the first and second creasing members with the speed of the associated sheet to enable the associated sheet to be creased while moving, and wherein the drive system is arranged to move the second creasing member in a translational reciprocating manner and a pivotal reciprocating manner during a creasing operation.