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AssigneeMAN Roland Druckmaschinen AG
InventorsGünther Brandenburg, Stefan Geissenberger, Andreas Klemm
Estimating the term…
In order to control the cut register (Y18) in multi-web operation in a web-fed press and, independently thereof, to control the web tension in a web section, specific image information or measuring marks from printed webs (BO, BU, BE) and web tensions in different web sections are registered by means of sensors and supplied to a control device—an item of image information or measuring marks from at least one of the printed webs, the said information or marks being suitable for the deviation of the position of the printed image with respect to its intended position, based on the location and time of the cut, that is to say for the cut register error (Y18), is registered before and/or on the common knife cylinder (K8) with the aid of at least one sensor (SE; SO; SU), is evaluated and/or is transformed to form an actual value, which is used for the control of the cut register error of at least one web—and, to correct the cut register error of at least one web, either the speed of at least one clamping point located before the knife cylinder and/or the position of the knife cylinder and, to correct the web tension, the speed of at least one further clamping point is changed, so that the actual value of the part and/or total cut register error of at least one web and, independently thereof, the at least one web tension are corrected to the associated predefined set points. In addition, the invention relates to an apparatus for implementing the method for controlling the web tensions and cut register error.
-23. (canceled)
A method for controlling the cut register in a web fed press through which a plurality of webs are fed, the press having a printing unit, a common knife cylinder which cuts the webs, and a plurality of clamping points between the printing unit and the knife cylinder, wherein said printing unit prints each web with a printed image and one of image information and measuring marks suitable for the deviation of the position of the printed image with respect to its intended position based on the time and position of cutting at the knife cylinder, said deviation constituting the cut register error, the method comprising:
Apparatus for controlling the cut register in a web fed press through which a plurality of webs are fed, the press having a printing unit, a common knife cylinder which cuts the webs, and a plurality of clamping points between the printing unit and the knife cylinder, wherein said printing unit prints each web with a printed image and one of image information and measuring marks suitable for the deviation of the position of the printed image with respect to its intended position based on the time and position of cutting at the knife cylinder, said deviation constituting the cut register error, the apparatus comprising:
Dependencies are inferred from the claim text.