Inking unit

Details Inking unit Inking unit

B - Operations, Transporting

41

F

B41F 31/10 (2006.01) B41F 31/06 (2006.01)

Patent

CA 2044790

There is provided an inking unit comprising an ink circulating assembly and means for moving a platform on which said ink circulating assembly is provided. The ink circulating assembly includes the ink fountain provided in an ink reservoir, ink outlet means for introducing the ink into the ink fountain, the ink reservoir having an open top and designed to surround the ink fountain from beneath the ink fountain, a screw conveyor arranged along the longitudinal direction within the ink reservoir for conveying the ink mixing the excess dampening water therewith and diffusing the excess dampening water thereinto, and a pipe connecting between the ink reservoir and the ink outlet means. The means for moving the platform includes a lifter for vertically moving the platform, and casters for horizontally moving the platform. Thus, the means for moving the platform can be used both as adjustment of a position of the ink fountain in relation to the roller and as removal of the ink circulating assembly to repair and/or to change one to another.

La présente invention a pour objet un dispositif encreur comportant un ensemble d'alimentation en encre ainsi qu'un mécanisme assurant le déplacement d'une plate-forme supportant l'ensemble d'alimentation en encre. L'ensemble d'alimentation en encre comporte un cylindre d'encrier tournant dans le bac contenant l'encre, des orifices de distribution de l'encre assurant l'arrivée de l'encre à l'intérieur du cylindre d'encrier; la partie supérieure du bac contenant l'encre est ouverte et permet au cylindre de baigner complètement dans l'encre; une vis sans fin disposée dans l'axe longitudinal du bac contenant l'encre assure la circulation de l'encre et l'incorporation de l'eau de mouillage, ainsi que la diffusion de l'excédent d'eau de mouillage; une canalisation relie le bac contenant l'encre aux orifices de distribution de l'encre. Le mécanisme assurant le déplacement de la plate-forme comporte un poussoir assurant le levage vertical de la plate-forme ainsi que des galets assurant le mouvement de translation horizontale de la plate-forme. Le mécanisme de déplacement de la plate-forme permet de régler la position de l'encrier par rapport au cylindre d'encrier et facilite le démontage de l'ensemble d'alimentation en encre aux fins de réparation ou de remplacement.

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