Patent ID: 6183602
Filing Date: 2001-02-06
Classification: D21F

Abstract:
In a twin wire former for a paper machine, including two wires forming closed loops, respectively, arranged facing each other so as to cooperatively form a gap for paper formation, said two wires pinch therebetween paper stock therebetween supplied to the gap for paper formation and convey said paper stock while running, a the twin wire former dewatering device provided for the paper machine comprising:a plurality of adjustable dewatering blades arranged inside one closed loop of said closed loops; andwherein each of said adjustable dewatering blades is provided with an active plane on the wires, an angle formed between said active plane and said wires being adjustable by means of an angle adjustment unit; andwherein each of said adjustable dewatering blades comprises:a base;a second movable member moveably supported by said base so as to move relative to said base in a direction towards and away from a wire portion traveling in the vicinity of said adjustable dewatering blade; anda first movable member supported by said second movable member so as to swing in a traveling direction of said wire portion to thereby adjust the angle formed between said respective active plane and said wires, andwherein said first movable member supports said adjustable dewatering blade.