Device for discharging a liquid

B - Operations – Transporting – 05 – C

Patent

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Details

B05C 5/02 (2006.01) B05C 13/00 (2006.01)

Patent

CA 2368115

The invention relates to a device for discharging a liquid onto a substrate, especially an adhesive onto films, which can move in relation to said device. The inventive device comprises a liquid feed channel (4) which is formed in a base body(2) and can be connected to a fluid source, at least one discharge valve (14) for selective interruption or release of a flow of liquid and a slotted nozzle arrangement comprising a longitudinal slot and a discharge opening and which can communicate with the fluid feed channel, whereby the length of said slot can vary due to the action of a moveable sealing body (18) inside said slot which can seal it laterally. According to the invention, the base body is displaceably and lockably mounted in the direction of the longitudinal axis of the slot by means of a guide and displacement device.

L'invention concerne un dispositif pour l'application de fluide sur un substrat mobile par rapport au dispositif, en particulier pour l'application d'adhésif sur des feuilles. Le dispositif selon l'invention comprend un conduit d'amenée de fluide réalisé dans un corps de base et pouvant être relié à une source de fluide, au moins une soupape d'application qui interrompt ou libère, au choix, le flux de fluide, ainsi qu'un système de buse fendue communiquant avec le conduit d'amenée de fluide et présentant une fente allongée ayant une ouverture de sortie. On peut faire varier la longueur de la fente au moyen d'un corps de fermeture mobile dans la fente et étanchant cette dernière latéralement. Selon l'invention, le corps de base est monté de manière à pouvoir coulisser et être bloqué dans le sens de l'axe longitudinal de la fente au moyen d'un dispositif de conduite et de déplacement.

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