Apparatus for adjustment of the coating thickness in the coating of traveling webs
AssigneeJagenberg Werke AG
InventorErwin Bergs
Life of this patent
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Abstract
In an apparatus for coating a traveling web and comprising coating means for the web, a doctor roll which bears on the coated side of the web, a doctor-roll bed supporting the doctor roll and secured to the machine frame through a mount, and means for adjusting the location of the doctor roll and thus for adjusting the coating thickness, the improvement wherein the doctor-roll bed is made of an elastomeric material, and the adjusting means includes an inflatable tube between the doctor-roll bed and its mount constructed as a pressure chamber in the doctor-roll bed.
Claims5
In an apparatus for coating a traveling web and comprising coating means for the web, a doctor roll which bears on the coated side of the web, an elastomeric doctor-roll bed supporting the doctor roll and secured to the machine frame through a mount, the doctor roll bed including an inflatable tube constructed as a pressure chamber, and means for adjusting the location of the doctor roll and thus for adjusting the coating thickness, the improvement wherein the pressure chamber is joined through a central fillet extending parallel to the doctor roll to that part of the doctor-roll bed which carries the doctor roll.
Dependencies are inferred from the claim text.