| 摘要 |
Known devices for coating moving material webs comprise a slotted nozzle ( 1 ), from which the coating material is discharged in a free-flowing curtain and which has a guide element ( 2 ) for the edge of the curtain, said element extending downwards on each side in the immediate vicinity of the discharge gap ( 3 ). Suction elements for evacuating the coating material are located in the edge region of the web. According to the invention, a suction element ( 6 ) is fixed on the lower end of each guide element ( 2 ), the inner face of said suction element that points towards the curtain being aligned with the inner face of the guide element ( 2 ). A suction channel ( 7 ), which is connected to a suction line ( 8 ), is guided through the suction element ( 6 ), said channel opening into a suction tip that runs perpendicular to the curtain plane ( 9 ) at the lower end of the inner face.
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