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AssigneeJ. Zimmer Maschinenbau Gesellschaft m.b.H.
InventorJohann Achrainer
Estimating the term…
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).
Application device for applying fluid to a substrate, comprising valve devices which are arranged in a row and are each equipped with an application valve nozzle for emitting the fluid under pressure and with associated valve actuating device for controlling the emission of fluid by closing and opening the application valve nozzles, and comprising a common distributing fluid chamber which can be subjected to pressure from the fluid and which connects the application valve devices to each other for admission of the fluid, the distributing fluid chamber being provided with a fluid intake duct which is arranged in such a way that the fluid which is under pressure in the distributing fluid chamber is distributed along the row of application valve devices to the latter, characterised in that at least one cleaning valve device which is incorporated into the row of application valve devices for connection to the distributing fluid chamber and is fitted with a cleaning valve nozzle and with associated valve actuating device for closing and opening the cleaning valve nozzle, is associated with at least the one fluid intake duct of the distributing fluid chamber, a flow path which is effective when the cleaning valve nozzle is open, for cleaning the common distributing fluid chamber, being formed in the distributing fluid chamber between the fluid intake duct (110) and the at least one associated cleaning valve device.
Dependencies are inferred from the claim text.