Keyless inker for a printing press

B - Operations – Transporting – 41 – F

Patent

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Details

B41F 31/20 (2006.01) B41F 31/15 (2006.01) B41F 35/04 (2006.01)

Patent

CA 2364048

An offset printing press (10) having a keyless inking system (21). The inking system includes a single form roller (15) for applying ink to a printing plate, and a transfer roller (35) adjacent the form roller for removing excess ink from the form roller. A subtractive roller (30) adjacent the transfer roller (35) removes excess ink from the transfer roller, and a scraper blade (32) adjacent the subtractive roller scrapes excess ink from said subtractive roller. An ink reservoir (50) adjacent the scraper blade receives ink scraped from the subtractive roller, and supplies ink for application onto the form roller. An applicator roller (40) adjacent the ink reservoir receives ink from the ink reservoir, and applies the ink to the form roller.

L'invention se rapporte à une presse d'impression (10) à système d'encrage sans clé (21). Ledit système d'encrage comporte un rouleau toucheur unique (15) conçu pour appliquer de l'encre sur une plaque d'impression, et un rouleau distributeur (35) adjacent au rouleau toucheur et conçu pour retirer l'excès d'encre dudit rouleau toucheur. Un rouleau pré-traité (30) adjacent au rouleau distributeur (35) retire l'excès d'encre du rouleau distributeur et une lame racleuse (32) adjacente au rouleau pré-traité racle l'excès d'encre dudit rouleau pré-traité. Un réservoir d'encre (50), qui est disposé en position adjacente à la lame racleuse de manière à recevoir l'excès d'encre raclée en provenance du rouleau pré-traité, délivre l'encre destinée à l'application sur le rouleau toucheur. Un rouleau applicateur (40) adjacent au réservoir d'encre reçoit l'encre du réservoir d'encre, et applique cette encre sur le rouleau toucheur.

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