Processing machine having a unit with a reservoir, and method for operating a reservoir
AssigneeKoenig & Bauer Aktiengesellschaft
InventorsDetlev PFORTE, Lutz HALBACH, Jan TELLER, Peter JENTZSCH
Life of this patent
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Abstract
A processing machine, in particular a printing machine, includes a unit having a storage container. The storage container comprises a roller and a base which delimit the storage chamber for a medium. One or more sliders are arranged along the edge of the base to form, together with the roller, an outlet gap for the medium. In the region of the one or more sliders, pneumatic means are provided to seal the supply chamber with respect to the medium. A method for operating such a processing machine is also disclosed.
Claims16
1-50. (canceled)
A processing machine, in particular offset printing machine, having a printing unit that has an ink fountain,
- wherein the ink fountain comprises a ductor roller (01), an ink fountain base (03), and end walls (05), which delimit an ink chamber (04) for a printing ink,
- wherein the ink fountain is open toward the top, and
- wherein one or more ink slides (06) are arranged along a margin of the ink fountain base (03) in order to form, together with the ductor roller (01), an ink outlet gap (13) for the printing ink,
- characterized in that
- in the region of the ink slide(s) (06) and/or in the region of an edge (26) between an end wall (05) and the ductor roller (01), pneumatic means are provided for sealing the ink chamber (04) with respect to the printing ink,
- wherein a positive pressure, which is elevated in relation to the ambient pressure and which counteracts a penetration of the medium, can be and/or is generated in gaps (25) between ink slides (06) and/or in gaps (25) between end walls (05) and ink slides (06) by means of the pneumatic means, wherein a compressed gas line is formed by means of bore holes (20, 21) in the ink slide(s) (06) and/or in the end walls (05) and in the ink slide(s) (06), and/or is and/or can be generated in gaps (27) between end walls (05) and the ductor roller (01).
A method for operating a reservoir in a unit of a processing machine, in particular a printing machine,
- wherein a roller (01) and a base (03) delimit a reservoir chamber (04) of the reservoir for a medium, and
- wherein one or more slides (06) are arranged along a margin of the base (03), in order to form, together with the roller (01), an outlet gap (13) for the medium,
- characterized in that
- in the region of the slide(s) (06), pneumatic means force in compressed gas for the purpose of sealing the reservoir chamber (04) with respect to the medium, wherein the compressed gas counteracts a penetration of the medium into gaps (25) between slides (06) and/or into gaps (25) between end walls (05) and slides (06), wherein the compressed gas keeps a gap (25) between flanks (08) of an end wall (05) and a slide (06) and/or gaps (25) between flanks (08) of slides (06) free of the medium, wherein the compressed gas is conducted via bore holes (20, 21, 22), wherein the slide(s) (06) are shifted for the purpose of adjusting the outlet gap (13), and wherein the compressed gas is conducted through overlapping bore holes (20, 21) in every position of the slide(s) (06), and/or
- wherein the compressed gas counteracts a penetration of the medium into gaps (27) between end walls (05) and the roller (01), wherein the compressed gas keeps a gap (27) between an end wall (05) and the roller (01) free of the medium, and wherein the compressed gas is conducted via grooves (30).
Dependencies are inferred from the claim text.