D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/10 (2006.01) D21F 1/50 (2006.01)
Patent
CA 2306700
A seal construction for a suction box in a suction roll in a paper/board machine comprises a seal (10) placed in a holder (11) and loading means, preferably at least one loading hose (12; 12a1, 12a2) between the holder (11) and the seal (10), in which connection the seal (10) is pressed against the inner face (T') of the roll mantle of the suction roll (T) by means of the pressure of a medium passed into the loading hose (12; 12a1, 12a2). Locking means (13, 14, 16) by whose means the seal (10) can be locked in the desired position in the holder (11) have been fitted in a cavity (D1) placed in one side face of the seal (10), and a loading hose (13) has been fitted to act with a force upon a rib (14). The loading hose (13) is placed between the cavity (D1) and the rib (14), and a second rib (16) has been fitted in a cavity/cavities (D2, D2a, D2b) provided in the opposite side of the seal (10). A resilient element (130, 15a1, 15a2) has been fitted between said second rib (16) and the bottom of the cavity/cavities (D2, D2a, D2b).
Cette invention a trait à un ensemble joint pour caisse aspirante dans le rouleau aspirant d'une machine à papier et/ou à carton. L'ensemble joint comporte un joint (10) placé dans un support (11) et des moyens de chargement, de préférence au moins un tuyau souple de chargement (12, 12a1, 12a2) entre le support (11) et le joint (10), ce dernier étant appuyé contre la face interne (T') de la chemise du rouleau aspirant (T) sous l'effet de la pression exercée par un milieu passant dans le tuyau souple de chargement (12, 12a1, 12a2). Des organes de verrouillage (13, 14, 16), permettant d'immobiliser le joint (10) dans une position désirée dans le support (11), équipent une cavité (D1) se trouvant sur une face latérale du joint (10). Le système comporte également un tuyau souple de chargement (13) exerçant une force sur une nervure (14). Ce tuyau souple (13) est placé entre la cavité (D1) et la nervure (14) et une seconde nervure (16) équipe une cavité et/ou plusieurs cavités (D2, D2a, D2b) ménagées dans le coté opposé du joint (10). Un élément élastique (130, 15a1, 15a2) est placé entre cette seconde nervure (16) et le fond de la cavité ou des cavités (D2, D2a, D2b).
Metso Paper Inc.
Sim & Mcburney
Valmet Corporation
LandOfFree
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