US 8,127,671 B2Granted

Printing unit of a printing machine, and method for using a printing unit

AssigneeKoenig & Bauer Aktiengesellschaft

InventorChristoph Alfons Schmitt

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Abstract

A printing unit of a printing machine is configured having at least two frame parts, a spacing between which can be modified. Several form cylinders and several transfer cylinders, which cooperate to print a web, are located on each of the at least two frame parts. The distance between the two frame parts is less when the printing unit is closed than it is when the printing unit is open. The printing unit includes at least two web guiding elements. A first tangent is established by a transfer cylinder of a stationary one of the frame parts. A second tangent is established by the at least two web guiding elements. The first tangent and the second tangent are spaced from each other at a distance.

Claims18

Dependent claims

A printing unit of a printing press comprising:

a first, stationary frame part and a secondary, movable frame part, a relative spacing distance between which first, stationary frame part and which second, movable frame part can be modified, and wherein, when the printing unit is in a closed position, the first and second frame parts are spaced at a first distance from one another and wherein, when the printing unit is in an open position, the first and second frame parts are spaced at a second distance from one another, the first distance being less than the second distance;
a plurality of first form cylinders and cooperating first transfer cylinders in the first frame part;
a plurality of second form cylinders and cooperating second transfer cylinders in the second frame part, the first transfer cylinders and the second transfer cylinders cooperating to imprint a material web when the first frame part and the second frame part are in the closed position;
a material web infeed area of the printing unit and a material web outfeed area of the printing unit;
at least first and second web guiding elements in the printing unit, at least a first one of the two at least first and second web guiding elements being positioned in the infeed area of the printing unit and at least a second one of the at least first and second web guiding elements being positioned in the outfeed area of the printing unit;
a first vertically extending tangent established by the first plurality of transfer cylinders of the first, stationary frame pad wherein, when the printing unit is in the closed position, the first tangent of the plurality of first transfer cylinders defines a path of travel of the material web between an uppermost one of the plurality of first transfer cylinders and a lowermost one of the plurality of first transfer cylinders in the first, stationary frame part;
and
a second vertically extending tangent established by the at least two first and second web guiding elements, the first tangent of the transfer cylinders and the second tangent of the web guiding elements being arranged at a distance from one another when the printing unit is in the open position.

5 more elements

Dependencies are inferred from the claim text.

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Abstract

A printing unit of a printing press comprising:

a first, stationary frame part and a secondary, movable frame part, a relative spacing distance between which first, stationary frame part and which second, movable frame part can be modified, and wherein, when the printing unit is in a closed position, the first and second frame parts are spaced at a first distance from one another and wherein, when the printing unit is in an open position, the first and second frame parts are spaced at a second distance from one another, the first distance being less than the second distance;
a plurality of first form cylinders and cooperating first transfer cylinders in the first frame part;
a plurality of second form cylinders and cooperating second transfer cylinders in the second frame part, the first transfer cylinders and the second transfer cylinders cooperating to imprint a material web when the first frame part and the second frame part are in the closed position;
a material web infeed area of the printing unit and a material web outfeed area of the printing unit;
at least first and second web guiding elements in the printing unit, at least a first one of the two at least first and second web guiding elements being positioned in the infeed area of the printing unit and at least a second one of the at least first and second web guiding elements being positioned in the outfeed area of the printing unit;
a first vertically extending tangent established by the first plurality of transfer cylinders of the first, stationary frame pad wherein, when the printing unit is in the closed position, the first tangent of the plurality of first transfer cylinders defines a path of travel of the material web between an uppermost one of the plurality of first transfer cylinders and a lowermost one of the plurality of first transfer cylinders in the first, stationary frame part;
and
a second vertically extending tangent established by the at least two first and second web guiding elements, the first tangent of the transfer cylinders and the second tangent of the web guiding elements being arranged at a distance from one another when the printing unit is in the open position.

5 more elements