Device for setting the voltage of a web of material which, by means of a process station, the web of material be machined is moved

摘要

Device for setting the voltage of a web of material which, by means of a process station, the web of material be machined is moved.In order to remove the tension and position of the web of material (10), for example a paper web, which is to be printed by a printer, can be adjusted, a, electrostatically operated braking device (11) is proposed, which a charging means (14), for example, a corotrone, and a brake plate (13) is provided, between which the material web passes. The charging means charges the web of material, as a result, the latter to the brake plate (13), lies on this and is braked by friction. Advantage is that the charge voltage (av) of the charging means by means of sensors for the web tension and layer of sheets can be controlled and on the signals of sensors can react very quickly.