Ink transfer arrangement and method in a printing press

Details Ink transfer arrangement and method in a printing press Ink transfer arrangement and method in a printing press

1986-02-21

1987-06-02

Fisher, J. Reed

Printing

Intaglio

Bed and platen

101362, B41F 146

Patent

active

046693793

ABSTRACT:
An ink transfer arrangement for and a method of transferring ink to an engraved die surface of a reciprocatable die in a printing press of the type including a die drive for reciprocating the die, and a press ram drive for pressing sheet material to be printed against the ink engraved die surface to produce intaglio printing are disclosed. A rotatable inking roller is normally mounted on an ink fountain in inking engagement with a fountain roller also mounted on the fountain. Ink from the fountain is transferred to the fountain roller, and thereupon to the inking roller. The inking roller is mounted for limited displacement relative to the fountain roller in a direction transverse to the axis of rotation of the inking roller. A set of cam shoes and cam follower wheels are provided in operative association with the die drive for displacing the inking roller by a limited predetermined distance out of inking engagement with the fountain roller and into inking engagement with the engraved die surface to permit the ink-laden inking roller to roll over and apply ink to the engraved die surface during the reciprocating movement of the die. Intaglio printing speeds on the order of 8000 impressions per hour are achieved.

REFERENCES:
patent: 657144 (1900-09-01), Waite
patent: 1102770 (1914-07-01), Lockwood
patent: 1789244 (1931-01-01), McCollum
patent: 3744414 (1973-07-01), Krochert
patent: 3760723 (1973-09-01), Taig
patent: 4290359 (1981-09-01), Kapoor

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