Fluid level detection system for ink in a printing press

G - Physics – 01 – F

Patent

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Details

G01F 23/00 (2006.01) B41F 31/02 (2006.01) G01F 23/22 (2006.01)

Patent

CA 2214556

A fluid level detection system (50) for ink in a printing press (10) having a vessel (58) having walls (60) defining a chamber (62), an elongated rotatable shaft (64) in the chamber (62), a motor (66) for rotating the shaft (64), an elongated flexible blade (68) affixed to the shaft 64 such that the motor (66) rotates the blade (68), and a proximity sensor (72) adjacent the walls (60) of the vessel (58) to detect the rotating blade (68) in the absence of ink at the level of the blade (68), with the blade (68) flexing in the presence of ink such that the sensor (72) does not detect the blade (68).

La présente invention a pour objet un système de détection du niveau de l'encre (50) dans une presse à imprimer (10), comportant un récipient (58) doté de parois (60) définissant une chambre (62), un arbre de rotation (64) traversant cette chambre (62), un moteur (66) pour entraîner l'arbre (64), un lame flexible de forme allongée (68) qui est fixée à l'arbre (64), de telle sorte que le moteur (66) produise la rotation de la lame (68), ainsi qu'un capteur de proximité (72) qui, adjacent aux parois (60) du récipient (58), sert à détecter la présence de la lame en rotation (68) lorsque le niveau d'encre n'atteint pas la hauteur de la lame (68), le capteur (72) ne pouvant détecter la lame (68) que lorsque celle-ci n'est pas déformée du fait de l'absence d'encre.

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