Loading patent…
AssigneeMAN Roland Druckmaschinen AG
InventorJohannes Schubert
Estimating the term…
A method and apparatus for supplying a liquid medium, such as viscous printing ink, to the distributor and transfer rollers of printing machines. The apparatus includes an arcuate shaped distributor plate, an ink feed for dispensing a controlled quantity of liquid medium onto the distributor plate, and a feed roller that is mounted for cyclic movement in a path whereby it is rolled on the distributor plate to mix and uniformly spread the medium along the plate and about the periphery of the feed roller and then is moved into contact with the machine distributor roller to transfer the liquid medium thereto in a controlled manner. In one embodiment, the feed roller is moved in a cyclic circular path so that it first engages the distributor plate and then the distributor roller, and in another embodiment is moved in a reciprocating manner back and forth on the distributor plate and then engages the distributor roller. The ink feed is adapted to dispense controlled quantities of the liquid medium onto the distributor plate in timed relation with the cyclic feed roller movement.
An apparatus for supplying a liquid medium to a roller of a machine comprising an arcuate shaped distributor plate having a determined center of curvature, means for feeding a controlled quantity of said liquid medium onto said distributor plate, a feed roller, a guide rotatably supporting said feed roller, means rotatably supporting said guide for movement about the center of curvature of said distributor plate, and means for cyclically moving said guide in a path whereby said feed roller on said distributor plate to mix and uniformly spread the medium along the plate and about the periphery of said feed roller and then is moved into contact with said machine roller to transfer liquid medium thereto in a controlled manner, a smoothing roller rotatably mounted on said guide for constant rotational contact with said feed roller as it is rolled in contact with said distributor plate, and said smoothing roller having a diameter less then the diameter of said feed roller so as not to contact said distributor plate during cyclic rolling movement of said feed roller along said distributor plate.
Dependencies are inferred from the claim text.