Processing machine and method for adjusting a printing length and/or processing length
AssigneeKoenig & Bauer Aktiengesellschaft
InventorsBastian Deppisch, Torsten Müller, Thomas Schneider
Life of this patent
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AssigneeKoenig & Bauer Aktiengesellschaft
InventorsBastian Deppisch, Torsten Müller, Thomas Schneider
Estimating the term…
In some examples, a processing machine for processing a substrate includes at least one shaping unit and/or at least one application unit. The at least one application unit and/or the at least one shaping unit in each case includes at least one forme cylinder and at least one impression cylinder. The at least one forme cylinder of the application unit includes at least one application forme including at least one application surface and/or the at least one shaping unit includes at least one shaping tool including at least one working surface. The application surface and/or the working surface are arranged to cover at least a portion of the outer cylindrical surface of the at least one forme cylinder. A speed of the at least one forme cylinder and a speed of the at least one impression cylinder have a speed ratio with respect to one another.
A processing machine for processing a substrate comprising at least one shaping unit and/or at least one application unit, the at least one application unit and/or the at least one shaping unit, each comprising at least one forme cylinder and at least one impression cylinder, the at least one forme cylinder of the application unit comprising at least one application forme including at least one application surface and/or the at least one shaping unit comprising at least one shaping tool including at least one working surface, the application surface and/or the working surface being arranged so as to cover a first portion of the outer cylindrical surface of the at least one forme cylinder, a gap, in which processing is not performed, extending over a second portion of the outer cylindrical surface of the at least one forme cylinder, the processing machine comprising at least one control unit for correcting a processing length and/or printing length, which controls, in an open loop and/or a closed loop, a speed of the at least one forme cylinder and/or of the at least one impression cylinder, the speed of the at least one forme cylinder and/or the speed of the at least one impression cylinder having a speed ratio with respect to one another, the application surface of the at least one application forme and/or the working surface of the at least one shaping tool being subdivided into a plurality of sections for processing multiple-ups of the substrate which are arranged one behind the other, characterized in that, during a full cylinder revolution of the at least one forme cylinder, the at least one forme cylinder and the at least one impression cylinder have a first speed ratio when a first section of the plurality of sections of the working surface passes through the processing point and/or when a first section of the plurality of sections of the application surface passes through the processing point, and that the at least one forme cylinder and the at least one impression cylinder have a second speed ratio that differs from the first speed ratio when a second section of the working surface passes through the processing point and/or when a second section of the application surface passes through the processing point, wherein the at least one control unit adjusts a phase position of the at least one forme cylinder as the gap passes the processing point for matching the application surface and/or the working surface with a next substrate.
A method for adjusting a printing length and/or processing length of a substrate by means of at least one application unit and/or at least one shaping unit of a processing machine, the application unit and/or the shaping unit comprising at least one forme cylinder, the at least one forme cylinder comprising at least one application forme including at least one application surface and/or at least one shaping tool including at least one working surface, the application forme including the application surface and/or the at least one shaping tool including the at least one working surface covering a first portion of the outer cylindrical surface of the at least one forme cylinder, a gap, in which processing is not performed, extending over a second portion of the outer cylindrical surface of the at least one forme cylinder, the substrate being moved at a transport speed through the application unit and/or the shaping unit, the at least one application surface and/or the at least one working surface being subdivided into a plurality of sections for processing multiple-ups of the substrate which are arranged one behind the other, the speed of the at least one forme cylinder having a ratio with respect to the transport speed of the substrate, the printing length and/or the processing length of the substrate being adjusted by changing the speed ratio between the forme cylinder and the substrate, characterized in that a first speed ratio between the at least one forme cylinder and the substrate and corresponding to a first section of the at least one application surface and/or the at least one working surface is changed to a second, different speed ratio during a full cylinder revolution for a second section of the at least one application surface and/or for a second section of the working surface for adjusting the printing length and/or the processing length, and adjusting a phase position of the at least one forme cylinder as the gap passes the processing point for matching the application surface and/or the working surface with a next substrate.
Dependencies are inferred from the claim text.