Patent ID: 6022591
Filing Date: 2000-02-08
Classification: B05C,D21H

Abstract:
An apparatus for applying a coating medium having a thickness profile onto a traveling fiber material web having a width extending along a latitudinal direction, said apparatus comprising:at least one pre-metering device for applying and metering the coating medium onto the fiber material web, said pre-metering device including a plurality of segments disposed end-to-end relative to each other and extending substantially across the width of the fiber material web, each said segment having an equal width;a plurality of first actuators, at least one said first actuator being associated with each said segment of said pre-metering device, each said first actuator being configured to move said associated segment of said pre-metering device and thereby adjust the thickness profile;at least one finishing metering device for local adjustments to the thickness profile of the coating medium, said finishing metering device disposed at a location after said pre-metering device relative to a direction of travel of the fiber material web, said finishing metering device including a plurality of segments disposed end-to-end relative to each other and extending substantially across the width of the fiber material web, each said segment of said finishing metering device having an equal width which is identical to said equal width of said segments of said pre-metering device, each said segment of said finishing metering device being not aligned with a corresponding said segment of said pre-metering device in the direction of web travel such that each said segment of said finishing metering device is displaced by a predetermined distance with respect to a corresponding said segment of said pre-metering device in the latitudinal direction of the fiber material web; anda plurality of second actuators, at least one said second actuator being associated with each said segment of said finishing metering device, each said second actuator being configured to move said associated segment of said finishing metering device and thereby adjust the thickness profile.