B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
B05B 15/02 (2006.01) B05B 1/20 (2006.01) B05C 5/02 (2006.01)
Patent
CA 2690108
Disclosed is an applicator (1) for applying fluid to a substrate, comprising valve mechanisms (21) which are arranged in a row and are each equipped with an application valve nozzle (31), and a distributing fluid chamber (11) that has a fluid intake duct (110). A cleaning valve mechanism (21) which is incorporated into the row of application valve mechanisms (21) and is fitted with a cleaning valve nozzle (30) is associated with the fluid intake duct (110). A flow path (100) for cleaning the fluid chamber (11) is formed between the fluid intake duct (110) and the cleaning valve mechanism (20) in the distributing fluid chamber (11), said flow path (100) being effective when the cleaning valve nozzle (30) is open. Also disclosed is a method for cleaning said applicator (1). In said method, pressurized cleaning fluid is applied to the distributing fluid chamber (11), the application valve mechanisms (21) are kept closed while the cleaning valve nozzle (30) is opened, and the cleaning valve nozzle (30) is then closed while the application valve mechanisms are opened when the pressurized cleaning fluid is applied to the distributing fluid chamber (11). A valve mechanism (2) of the applicator (1) encompasses a detachably mounted nozzle diaphragm (3, 4) which unblocks a valve piston (51) in the removed state. The valve mechanism (2) further encompasses a straight fluid duct that remains free of flow corners. A setting piston (61) is movably mounted for adjusting and setting the stroke of the valve piston (51).
L'invention concerne un dispositif d'application (1) qui applique un fluide sur un substrat et qui comprend un agencement en série de dispositifs de soupape (21) qui sont tous dotés d'une tuyère (31) de soupape d'application, ainsi qu'une chambre (11) de répartition de fluide dotée d'un canal (110) d'admission de fluide. Un dispositif (20) de soupape de nettoyage qui est incorporé dans l'agencement en série des dispositifs (21) de soupape d'application et qui est doté d'une tuyère (30) de soupape de nettoyage est associé au canal (110) d'admission de fluide. Un parcours d'écoulement (100) de nettoyage de la chambre à fluide (11), qui est actif lorsque la tuyère (30) de soupape de nettoyage est ouverte, est formé dans la chambre (11) de répartition de fluide entre le canal (110) d'admission de fluide et le dispositif (20) de soupape de nettoyage. Un procédé de nettoyage du dispositif d'application (1) consiste à alimenter la chambre (11) de répartition de fluide avec un fluide de nettoyage sous pression, à maintenir fermés les dispositifs (21) de soupape d'application tout en ouvrant la tuyère (30) de la soupape de nettoyage et ensuite à fermer la tuyère (30) de soupape de nettoyage et à ouvrir les dispositifs de soupape d'application en alimentant la chambre (11) de répartition de fluide avec le fluide de nettoyage sous pression. Un dispositif de soupape (2) du dispositif d'application (1) présente un obturateur de tuyère (3, 4) fixé de manière libérable qui, lorsqu'il est enlevé, libère un piston de soupape (51). Le dispositif de soupape (2) présente en outre un canal à fluide rectiligne et exempt de coudes d'écoulement. Un piston d'ajustement (61) est monté de manière ajustable pour établir et ajuster la course du piston de soupape (51).
J. Zimmer Maschinenbau Gesellschaft M.b.h.
Robic
LandOfFree
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