Method for setting the cut register in a web-fed rotary press
AssigneeMAN Roland Druckmaschinen AG
InventorKlaus Theilacker
Life of this patent
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Abstract
A method for setting the cut register in a web-fed rotary press includes assigning a cut register function to a predetermined speed function, wherein the predetermined speed function describes a time curve of an operating speed of the rotary press starting from a predetermined initial value and the cut register function describes a time curve of the set value of the cut register, and changing the set value of the cut register continuously and synchronously in accordance with the associated cut register function during a variation in the operating speed of the rotary press according to the predetermined speed function, the cut register function being chosen empirically such that it counteracts a change in the actual value of the cut position as a result of the change in the operating speed.
Claims12
A method for setting the cut register in a web-fed rotary press, comprising the steps of:
- assigning a cut register function to a predetermined speed function, wherein the predetermined speed function describes a time curve of an operating speed of the rotary press starting from a predetermined initial value and the cut register function describes a time curve of the set value of the cut register;
- and
- changing the set value of the cut register continuously and synchronously in accordance with the associated cut register function during a variation in the operating speed of the rotary press according to the predetermined speed function, the cut register function being chosen empirically such that it counteracts a change in the actual value of the cut position as a result of the change in the operating speed.
An apparatus for setting the cut register in a web-fed rotary press, comprising:
- a memory storing a cut register function and a predetermined speed function, the predetermined speed function describes a time curve of an operating speed of the rotary press starting from a predetermined initial value and the cut register function describes a time curve of the set value of the cut register;
- an input interface to receive a signal derived from the operating speed of the press;
- an output interface to output at least one signal acting on the cut register setting of the press;
- and
- means for outputting at least one signal on said output interface that changes a set value of the cut register continuously and synchronously with said predetermined speed function in accordance with the associated cut register function if the signal applied to said input interface indicates a variation in the operating speed of the rotary press in accordance with the predetermined speed function.
Dependencies are inferred from the claim text.