Roller element for pressing a flexible printing plate onto the f

Details Roller element for pressing a flexible printing plate onto the f Roller element for pressing a flexible printing plate onto the f

1995-11-13

1997-04-08

Eickholt, Eugene H.

Printing

Print plate feeding or delivering

1014151, B41F 2100

Patent

active

056177925

ABSTRACT:
A roller element for pressing a flexible printing plate against a form cylinder of a printing unit in a rotary printing machine during a first mode of winding the printing plate on the form cylinder and a second mode of unwinding the printing plate from the form cylinder. The roller element has at least one winding roller, a first device for positioning the at least one winding roller against the printing plate during the first mode of winding the printing plate on the form cylinder and for moving the at least one winding roller away from and out of contact with the printing plate during the second mode of unwinding the printing plate from the cylinder, at least one unwinding roller and a second device for positioning the at least one unwinding roller against the printing plate during the second mode of unwinding the printing plate from the form cylinder and for moving the at least one unwinding roller away from and out of contact with the printing plate during the first mode of winding the printing plate on the form cylinder.

REFERENCES:
patent: 4727807 (1988-03-01), Suzuki et al.
patent: 5111744 (1992-05-01), Wieland
patent: 5406888 (1995-04-01), Sugiyama et al.
patent: 5495805 (1996-03-01), Beisel et al.
patent: 5540151 (1996-07-01), Ruckmann et al.
patent: 5555810 (1996-09-01), Stiel
patent: 5558111 (1996-09-01), Ruckmann et al.

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