US 8,327,763 B2Granted

Printing couple of a rotary printing press and a method for washing a dampening unit of a printing couple

AssigneeKoenig & Bauer Aktiengesellschaft

InventorsChristian Bünner, Bernd Kurt Masuch, Wolfgang Otto Reder

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Abstract

A printing unit of a rotary printing press includes a forme cylinder. An inking unit interacts with the forme cylinder and has a plurality of inking rolls. A dampening unit also interacts with the forme cylinder and has a plurality of dampening rolls. A washing device interacts with at least one of the inking rolls and dampening rolls for washing the inking unit and/or the dampening unit. The inking unit includes a plurality of ink applicator rolls which can be placed directly onto the forme cylinder during printing operation. The dampening unit has at least one dampening rotation applicator roll that can also be placed directly onto the forme cylinder during printing operations. In a washing position, one of the plurality of ink application rolls and the dampening rotation applicator roll are brought directly into contact with each other.

Claims42

Dependent claims

Printing couple (01) of a rotary printing press with a forme cylinder (02), an inking unit (06) that cooperates with the forme cylinder (02) and has a plurality of rollers (08;

09;
11;
13;
14;
16;
17;
18), a dampening unit (07) that cooperates with the forme cylinder (02) and has a plurality of rollers (21;
22;
23), and at least one washing device (26;
38) that cooperates with one of the rollers (08;
09;
11;
13;
14;
16;
17;
18;
21;
22;
23) to wash the inking unit (06) and/or the dampening unit (07), wherein the inking unit (06) has a plurality of ink forme rollers (08;
09;
11), which during print operation are engaged directly against the forme cylinder (02), wherein the dampening unit (07) has at least one dampening forme roller (23), which during print operation is engaged directly against the forme cylinder (02), in that in the washing position, an ink forme roller (08) of the plurality of ink forme rollers (08;
09;
11) and the dampening forme roller (23) are engaged directly against one another, characterized in that at least the ink forme roller (08) or dampening forme roller (23), which can be displaced between an initial position and a washing position, connects rollers (08;
09;
11;
13;
14;
16;
17;
18) of the inking unit (06) and rollers (21;
22;
23) of the dampening unit (07) to form a shared roller train when in its washing position.

30 more elements

Dependencies are inferred from the claim text.