Method of operating a machine processing printing material sheets
AssigneeHeidelberger Druckmaschinen AG
InventorsDaniel Conzelmann, Karl-Heinz Helmstädter
Life of this patent
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Abstract
In a method of operating a machine processing printing material sheets and having a sheet transport drum in various operating modes, drum circumferential shells are kept fixed on the sheet transport drum in an outer position in a first of the operating modes and in an inner position in a second of the operating modes. During a drum conversion to be carried out before the start of a third of the operating modes, the drum circumferential shells are removed from the sheet transport drum and, in this third operating mode, the sheet transport drum is rotated without the drum circumferential shells.
Claims10
A method of operating a machine processing printing material sheets, which comprises:
- providing a sheet transport drum of the printing machine with drum circumferential shells;
- operating the sheet transport drum in various operating modes;
- in a first of the operating modes, fixing the drum circumferential shells in an outer position on the sheet transport drum at a distance from an axis of rotation of the drum;
- in a second of the operating modes, fixing the drum circumferential shells in an inner position on the sheet transport drum at a distance from the axis of rotation of the drum being less than the distance in the outer position;
- providing the sheet transport drum with adjustable carriers being swinging arms of coupler mechanisms;
- in the first and second operating modes, carrying the drum circumferential shells with the adjustable carriers;
- before a start of a third of the operating modes, removing the drum circumferential shells from the sheet transport drum during a drum conversion;
- and
- in the third operating mode, rotating the sheet transport drum without the drum circumferential shells.
Dependencies are inferred from the claim text.