Keyless inking systems and methods using subtractive and...

Details Keyless inking systems and methods using subtractive and... Keyless inking systems and methods using subtractive and...

B - Operations, Transporting

41

F

B41F 31/00 (2006.01)

Patent

CA 2532169

Keyless inking systems and methods are disclosed which employs a main form roller (202) and a smaller clean-up roller (206), both in contact with a rotating print plate roller (204). Separate application and subtractive roller systems control the ink film on the form roller (202). The clean-up roller (206) removes residual ink from non-image areas on the printing plate roller (204). The clean-up roller (206) is in ink communication with the main form roller (202) through a vibrating roller (208). Mechanisms are provided to selectively engage and disengage the various rollers.

Cette invention concerne des système d'encrage sans vis utilisant un rouleau de toucheur principal et un rouleau de nettoyage plus petit qui sont tous deux en contact avec un plaque d'impression tournante. Des systèmes distincts de rouleaux d'application et soustractifs règlent le film d'encre sur le rouleau toucheur. Le rouleau de nettoyage retire l'encre résiduelle des blancs sur la plaque d'impression. Le rouleau de nettoyage est en communication d'encrage avec le rouleau toucheur principal via un rouleau vibrant. Des mécanismes permettent d'engager et de libérer sélectivement les divers rouleaux.

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