Printing – Multicolor – Rotary machines
Patent
1985-03-19
1986-02-25
Eickholt, E. H.
Printing
Multicolor
Rotary machines
101231, 271195, B41F 516, B65H 2924
Patent
active
045720711
ABSTRACT:
A sheet guiding device for use with a multicolor printing press having multiple printing units and a sheet stacker wherein the sheet guiding means is disposed between at least one of a pair of printing units and the stacker for guiding sheets therebetween, the guiding means including a chain conveyor with sheet grippers overlying a guide surface between the printing units and the stacker with a plurality of air nozzles formed in the surface of the guide surface and communicating with a plurality of flow ducts, the guide surfaces being disposed continuously and uninterruptedly between the printing units and the sheet stacker and the air nozzles being in the form of apertures in the guide surfaces having a diameter of about 15 mm, the area of the apertures being from 15 to 30% of the total guide surface area, the apertures being supplied by low-pressure high-volume-flow fans disposed in the flow ducts and the fans being reversible so that the nozzles can be selectively supplied with air at a positive or negative pressure.
REFERENCES:
patent: 323394 (1885-08-01), Campbell
patent: 3074712 (1963-01-01), Holt, Jr. et al.
patent: 3167006 (1965-01-01), Peyrebrune
patent: 3199865 (1965-08-01), Lindemann
patent: 3334897 (1967-08-01), Sharkey
patent: 4099463 (1978-07-01), Zimmermann et al.
patent: 4168831 (1979-09-01), Rebel
patent: 4408525 (1983-11-01), Rebel
patent: 4479645 (1984-10-01), Pollich
Cappel Bert
Kreuzer Norbert
Eickholt E. H.
M.A.N.--Roland Druckmaschinen Aktiengesellschaft
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