Turning device for a printing press

Details Turning device for a printing press Turning device for a printing press

1998-10-20

2000-07-18

Eickholt, Eugene

Printing

Rolling contact machines

Rotary

101409, 271276, 271277, B41F 502

Patent

active

060891564

ABSTRACT:
A turning device for a printing press, wherein a sheet printed on one side thereof is acceptable from an impression cylinder of an upline printing unit and is transferable to an impression cylinder of a downline printing unit, includes a first gripper device for accepting the sheet by a leading edge thereof from the upline impression cylinder, a register cylinder formed with a multiplicity of suction openings distributed over a circumferential surface thereof and being communicable with a negative pressure source for holding the sheet by suction and for guiding the sheet in-register with a leading edge thereof in the lead, the sheet, while being guided in-register, being held solely by the suction openings, and a second gripper device for accepting the sheet from the register cylinder at a trailing edge of the sheet.

REFERENCES:
patent: 4165689 (1979-08-01), Giuiuzza
patent: 4723489 (1988-02-01), Emrich et al.
patent: 4869166 (1989-09-01), Mathes
patent: 5454312 (1995-10-01), Helmstaedter et al.

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