Patent ID: 7625330
Filing Date: 2009-12-01
Classification: B41F,B65H

Abstract:
1. A folding machine for a web-fed printing press, comprising a cutting blade cylinder, a folding blade cylinder, and a folding jaw cylinder, wherein said cylinders are arranged such that exemplars are cut off from a web of a substrate by the cutting blade cylinder, the cut exemplars held by the folding blade cylinder and conveyed further in a direction of the folding jaw cylinder, and in a collecting mode of the folding machine, several exemplars are collectable on the folding blade cylinder such that at least two exemplars of different sheet lengths cut off by the cutting blade cylinder are superimposed one above the other on the folding blade cylinder and sent to the folding jaw cylinder as collected exemplars, wherein the cutting blade cylinder has only one single cutting blade mounted in a stationary mount on the cutting blade cylinder, wherein a separate drive is provided for the cutting blade cylinder, the drive of the cutting blade cylinder drives a shaft of the cutting blade cylinder, wherein a control unit is configured such that the separate drive is controlled by the control unit at a non-uniform or a uniform setpoint angular velocity as a function of whether the folding machine is being operated in the collecting mode or a non-collecting mode, such that: wherein the folding blade cylinder and the folding jaw cylinder have a common drive and wherein gear wheels which are drivably connected to the common drive and engaged with one another are mounted on a shaft of the folding blade cylinder and on a shaft of the folding jaw cylinder, and wherein another gear wheel is mounted on the shaft of the folding blade cylinder coaxially with the gear wheel mounted thereon, the another gear wheel is engaged with the gear wheel mounted on the shaft of the folding jaw cylinder, wherein the another gear wheel is engaged with a gear wheel mounted on the shaft of the cutting blade cylinder, wherein the another gear wheel and the gear wheel mounted on the shaft of the cutting blade cylinder cooperate with one another with a tooth play between the flanks of teeth of the same, wherein the tooth play is of such an extent that: