Patent ID: 7494455
Filing Date: 2009-02-24
Classification: B65H

Abstract:
1. A cylinder for processing flat material comprising: a cylinder body rotatable at a first speed about a cylinder body axis of rotation and having a cylinder body circumference; at least a first group of tools evenly distributed around said cylinder body circumference, with each tool in said at least first group of tools being adapted to selectively perform a work movement with respect to said cylinder body; a control arrangement coupled to each of said tools in said at least first group of tools and usable for selectively driving said work movement of each said tool; a stationary cam disk having a first circumferential work movement control section traced by said control arrangement for each tool of said at least first group of tools and controlling said work movement of each said tool, said stationary cam disk also having a second circumferential section traced by said control arrangement and not controlling said work movement, said work movement control section having a portion of said stationary cam disk circumference not greater than 1/n wherein n is a whole number equal to or greater than 2; a rotatable cover disk which is variably coupled to a rotation of said cylinder body, said rotatable cover disk also being traced by said control arrangement for each said tool in said at least first group of tools, said rotatable cover disk being driven for rotation at a second, variable speed different from said first speed; and at least three sector groups on said rotatable cover disk, a first one of said sector groups having sectors of a first radius, second and third ones of said at least three sector groups each having sectors of at least first and second different radii, said first radius of all of said at least three sector group permitting cooperation between said control arrangement and said first circumferential section of said cam disk for allowing said work movement of each said tool of said at least first group of tools, said second radius of each of second and third ones of said at least three said sector groups blocking said cooperation and blocking said work movement, said at least three sector groups being located sequentially on said rotatable cover disk, a sequence of said sectors of said first and second radii in each of said at least second and third ones of said at least three said sector groups being different from a sequence of said sectors of said at least first and second radii in adjacent ones of said at least second and third ones of said at least three second sector groups on said rotatable cover disk.