Coating station to apply a film and glue to one or both sides of a paper or cardboard web has an array of rollers between adjacent drying groups to give a direct or indirect coating

摘要

The applicator station, to coat a moving web of paper or cardboard on one or both sides, directly or indirectly, has a number of rollers (35a-35c) in the gap between neighboring drying groups (5,10). Two rollers (35a,35b;35b,35c) form press nips (PN1,PN2) between them for the web (1) to pass through, together with two pairs of rollers (40,50). At least one applicator (55a-55c,59) is at each roller (35a-35c) so that the first pair of rollers (40) is a film press and the second pair of rollers (50) is a glue or film press. At least one deflector (61,62,65,67,68) takes the web (1) for a film press coating from below to the roller pair (40) and/or from above to the second roller pair (50) for a glue pressing or a further film pressing. The rollers (35a-35c) lie horizontally next to each other. The two outer rollers (35a,35c) are higher than the center roller (35b) at an angle ( alpha ) of up to 30 deg to the center roller (35b). The center roller (35b) lies on the center plane (E) through neighboring drying groups (5,10). All the rollers (35a-35c) have a drive, and the paired rollers (40,50) rotate in opposite directions. At least one deflector to lead the web (1) to the first pair of rollers (40) is a web deflection roller (67,68) which also leads the web out of the rollers.