Printing groups of a printing machine
OwnerAndreas Ewald Bernard, Manfred Lieblerinventors
Life of this patent
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Abstract
A printing group of a printing machine includes a printing cylinder and an associated inking system which includes first, second and third ink distributing cylinders, in addition to a plurality of inking cylinders and rollers. Ink can be fed by the first distributing cylinder, along a first, front inking path, to the second distributing cylinder and along a second, rear inking path to the third distributing cylinder. An inking cylinder is displaceably arranged in the inking system such that the color of the inking system is maintained due to contact of the inking cylinder with the first distributing cylinder or the second distributing cylinder in accordance with the length of the roller of the second inking path.
Claims18
1-22. (canceled)
A printing group of a printing press comprising:
- a forme cylinder supported for rotation in said printing press;
- an inking system adapted for use to supply ink to said rotatable forme cylinder;
- first, second and third ink distribution cylinders in said inking system;
- a plurality of inking rollers and ink application rollers in said inking system;
- a first, front ink path from said first ink distribution cylinder to said rotatable forme cylinder via said second ink distribution cylinder;
- a second, rear ink path to said rotatable forme cylinder, said first ink being before, in a sequence of ink applications to said forme cylinder, said second ink path;
- and
- means supporting at least one of said inking rollers for movement in said inking system between at least first and second positions and wherein said second ink path is supplied with ink selectively by direct contact with said movable inking roller, said first ink distribution cylinder and said second ink distribution cylinder in accordance with said position of said movable inking roller.
A printing group of a printing press comprising:
- a forme cylinder supported for rotation in said inking press;
- an inking system adapted to supply ink to said rotatable forme cylinder;
- first, second and third ink distribution cylinders in said inking system;
- a plurality of inking rollers and ink application rollers in said inking system;
- means supporting at least one of said inking rollers for movement in said inking system between at least first and second positions;
- a first, front ink path from said first ink distribution cylinder via said movable inking roller and said second distribution cylinder to said rotatable forme cylinder;
- a second ink path from said third ink distribution cylinder to said rotatable forme cylinder;
- and
- a third, rear ink path from said first ink distribution cylinder via said third ink distribution cylinder to said rotatable forme cylinder, said first ink path being before in a sequence of ink applications to said rotatable forme cylinders, said second and third ink paths, said movable inking roller selectively opening and closing said first, front ink path while said third path is uninterrupted.
A printing group of a printing press comprising:
- a forme cylinder supported for rotation in said printing press;
- an inking system adapted to supply ink to said rotatable forme cylinder;
- first, second and third ink distribution cylinders in said inking system;
- a plurality of inking rollers and ink application rollers in said inking system;
- a dampening system including at least one dampening fluid distribution cylinder and at least one dampening fluid application roller;
- means supporting at least one of each of said inking rollers and said ink application rollers for movement between selected positions in said inking system;
- a first, front ink path formed from each first ink distribution cylinder via said second ink distribution cylinder and said third ink distribution application to said forme cylinder;
- a second, rear ink path;
- means supplying dampening agent from said at least one dampening fluid distribution cylinder and said at least one dampening fluid application roller to said forme cylinder wherein said second ink distribution cylinder can be selectively assigned to said inking system, to said dampening system and to both said inking system and said dampening system by operationally resetting said inking application rollers and said dampening fluid application rollers.
Dependencies are inferred from the claim text.