Printing – Rolling contact machines – Rotary
Patent
1995-09-29
1997-02-04
Eickholt, Eugene H.
Printing
Rolling contact machines
Rotary
101231, 101409, 101183, 271196, B41F 502
Patent
active
055987796
ABSTRACT:
A sheet-guiding apparatus for a turning device in a rotary printing machine guides a sheet being printed to prevent smearing. The turning device includes a turning drum and at least one sheet-guiding cylinder. The turning drum and the sheet-guiding cylinder define a sheet transfer region and a sheet transfer path. The sheet-guiding apparatus comprises an air blower means, at least one blower/suction device, and a lower sheet-guiding device. The air blower means, which is arranged upstream of the sheet transfer region, includes a first set of air outlet openings for directing compressed air toward the sheet-guiding cylinder and at least a second air outlet opening for directing compressed air into the transfer region. The blower/suction device, which is disposed within the sheet-bearing surface of the turning drum, communicates with a plurality of openings disposed in the sheet-bearing surface and is coupled to a pneumatic device. The lower sheet-guiding device is disposed below the sheet transfer path and is switchable between providing compressed air and providing air suction. The air blower means, blower/suction device, and the lower sheet-guiding device cooperate to provide a combination of air blow and suction for guiding the sheet in the sheet transfer process.
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patent: 5476041 (1995-12-01), Czotscher
Haas Hanns-Otto
Kanzler Stephan
Kobler, deceased Ingo
Mathes Josef
Mayer Peter
Eickholt Eugene H.
MAN Roland Druckmaschinen AG
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