FLEXIBLE ADJUSTABLE SMOOTHING BLADE

摘要

An apparatus continuously smoothes a wet coating of magnetizable particles and binder on a moving flexible web (20). A first longitudinal end (26) of a flexible film (28) is held in contact with the wet coating on the substrate (20) and is free to drag against the wet coating. The first longitudinal end (26) is deflected toward the substrate (20) along a line extending transversely between the first and second transverse ends. The amount of deflection is adjusted and varied during coating to adjust the radius of curvature of the deflection of the first longitudinal end (26). A smoothing bar (32) or a cylindrical rod (62, 64), with or without a sharp edge (68), can hold the flexible film (28) in position. The deflection and adjustment can be performed by a screw (46). Alternatively, a cylindrical rod (62, 64) is used by itself.