Printing machine with sheet-transfer arrangement

Details Printing machine with sheet-transfer arrangement Printing machine with sheet-transfer arrangement

1975-03-25

1977-04-19

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101410, 271 82, B41F 2100

Patent

active

040181618

ABSTRACT:
A sheet-transfer arrangement is arranged between two printing stations each having a printing roller. The transfer arrangement has a transfer roller provided with a suction gripper system which lifts the trailing edge portion of a sheet travelling on the first printing roller off the surface of the latter. A drive is provided which temporarily advances the suction gripper system relative to the transfer roller circumferentially of the same and in the direction of rotation thereof, in order to cause the trailing edge region of the sheet to bulge away from the first printing roller. A mechanical gripper system is also provided on the transfer roller which receives the trailing edge portion of the sheet from the suction gripper system, pulls the sheet off the first printing roller, turns it and presents it to the second printing roller during the continued rotation of the transfer roller.

REFERENCES:
patent: 3455547 (1969-07-01), Rudolph et al.
patent: 3463484 (1969-08-01), Rudolph
patent: 3654861 (1972-04-01), Rudolph et al.
patent: 3686771 (1972-08-01), Schone et al.
patent: 3788639 (1974-01-01), Bru
patent: 3899970 (1975-08-01), Jurny et al.

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