Application mechanism for fluid or paste on paper or cardboard web

摘要

The application mechanism has a metering rod (1) which acts as a dosing element has in the region of each edge of the material web, an edgeless transition to an area (4) located outside the web width, and in which the effective groove depth is less than that inside the web width. The outer grooves of the metering rod outside the web width (B) are taken up by a filler, or may have a plastic cover. The metering rod consists of a wire-wound shaft which gradually thickens towards its ends, and the wire coils are overwound in the end regions so that the shaft maintains a constant diameter.