METHOD TO DAMP AN OSCILLATION OF A DRIVEN ROLLER IN A PRINTING SYSTEM

摘要

In a method to damp an oscillation of a roller driven via a drive in a printing system, a printing substrate web is directed across the roller, the roller and the printing substrate web forming a system capable of vibrating. With the drive the roller is driven with a predetermined nominal moment. With a sensor, a real value is determined of a variable representative of a velocity with which the printing substrate web is transported by the roller. In aid of a predetermined calculation rule, a correction moment is calculated from the determined real value such that a damping of the vibration-capable system results like a mechanical viscous damper. The correction moment is added to the predetermined nominal moment upon activation of the drive.

主权项

1. A method to damp an oscillation of a roller driven via a drive in a printing system, comprising the steps of:
directing a printing substrate web across the roller, the roller and the printing substrate web forming a system capable of vibrating; with the drive driving the roller with a predetermined nominal moment; with aid of a sensor, determining a real value of a variable that is representative of a velocity with which the printing substrate web is transported by the roller; with aid of a predetermined calculation rule, calculating a correction moment from the determined real value such that a damping of the vibration-capable system results like a mechanical viscous damper; and adding the correction moment to the predetermined nominal moment upon activation of the drive.