Assembly for loading a doctor blade

Details Assembly for loading a doctor blade Assembly for loading a doctor blade

1994-04-18

1996-09-17

Bareford, Katherine

Coating apparatus

Solid member or material acting on coating after application

Running length work

118126, 118413, 427356, B05C 1104

Patent

active

055564674

ABSTRACT:
This invention relates to a method and assembly for loading the doctor blade of a doctoring unit used, e.g., in coating a paper web, characterized in that the blade can be loaded close to the edge of the blade without compromising the accuracy of blade profile control. The blade is loaded by backing member (8) having a Z-shaped cross section in which one side of the section forms a base (13), while the middle part forms a waist (18) which turns toward the base (13), and the other side of the shape forms a tip (12) pointing to an opposite direction relative to the base (13) and has at its end a tapering edge suited for pressing against the doctor blade (7). This approach is capable of eliminating the sliding movement of the backing member (8) relative to the blade which tends to impair the accuracy of blade pressure control.

REFERENCES:
patent: 3335701 (1967-08-01), Verkinderen et al.
patent: 4375202 (1983-03-01), Miller
patent: 4440105 (1984-04-01), Jeltema
patent: 4553498 (1985-11-01), Sommer et al.
patent: 5085168 (1992-02-01), Sollinger
patent: 5138970 (1992-08-01), Sollinger

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