Coating device for running webs of paper or cardboard

Details Coating device for running webs of paper or cardboard Coating device for running webs of paper or cardboard

1994-01-12

1995-12-05

Jones, W. Gary

Coating apparatus

Control means responsive to a randomly occurring sensed...

118126, 118413, 118708, 118712, B05C 1106

Patent

active

054725046

ABSTRACT:
A coating device having a blade for metering a coating material onto a running web of paper or cardboard guided by a roll includes at least one noncontacting sensor disposed near the blade and between apparatus for adjusting the transverse profile of coating. The sensor provides a signal indicating the position of the blade. The device also includes a receiver for receiving the signal of the sensor and a control device for controlling the angular position of the blade as a function of the sensor signal. The angle of contact of the blade on the roll is determined as a function of the known pressing pressure (or a corresponding proportional value thereof) of the blade caused by the profile adjustment apparatus, preferably determined by a computer or microprocessor.

REFERENCES:
patent: 3783781 (1974-01-01), Grommek
patent: 4880672 (1989-11-01), Ericksson
patent: 4919756 (1990-04-01), Sawdai
patent: 5085168 (1992-02-01), Sollinger
patent: 5134958 (1992-08-01), Zimmer
patent: 5221351 (1993-06-01), Esser et al.
patent: 5242498 (1993-09-01), Kohler et al.
patent: 5316584 (1994-05-01), Ueberschar et al.

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