DEVICE AND METHOD FOR DRIVING CAM MASKS IN A FOLDER

摘要

The present invention provides a folder having a collect cylinder (110) mounted for rotation and a collect cylinder drive mechanism (114) for rotating the collect cylinder (110). The collect cylinder (110) includes at least one gripper (116) and a gripper actuator connected to the gripper (116), and including a cam follower (126, 128) arrangement. A fixed cam (122) having a surface profile is in engagement with the cam follower (126, 128) arrangement to cause actuation of the gripper (116), and a rotating cam mask (124) is mounted for rotation relative to the fixed cam (122) to selectively mask the surface profile of the fixed mask for actuation of the gripper (116) in a preselected mode. According to a feature of the present invention, an independent cam mask drive mechanism (200) is provided for rotating the rotating cam mask (124) in a controlled rotation to selectively mask the surface profile.