Mechanism for lifting and lowering an impression cylinder with s

Details Mechanism for lifting and lowering an impression cylinder with s Mechanism for lifting and lowering an impression cylinder with s

1981-12-10

1983-05-03

Eickholt, E. H.

Printing

Rolling contact machines

Bed-and-cylinder

B41F 358

Patent

active

043817076

ABSTRACT:
In a rotogravure printing press, the two journal bearings of the impression cylinder are each connected to a double acting piston-cylinder unit for lifting and lowering the impression cylinder and are interconnected by a synchronizing shaft which is mounted thereon and is provided with pinions engaging racks fixed with respect to the frame of the press. The synchronizing shaft can be coupled to the journal bearings by at least one spring-biassed multiple disc brake which is released when the impression cylinder executes a wide stroke for the purpose of cylinder replacement and during pressure application of the impression cylinder. The brake is actuatable for engagement at the end of a short stroke when pressure is withdrawn.

REFERENCES:
patent: 3793952 (1974-02-01), Neumann et al.
patent: 3894488 (1975-07-01), Gazzola
patent: 4046070 (1977-09-01), Halley
patent: 4057012 (1977-11-01), Heidemman
patent: 4119031 (1978-10-01), Ottenhues

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