Strip for flexibly supporting a wire and twin-wire section

Details Strip for flexibly supporting a wire and twin-wire section Strip for flexibly supporting a wire and twin-wire section

D - Textiles, Paper

21

F

D21F 1/48 (2006.01) D21F 9/00 (2006.01)

Patent

CA 2628544

The invention relates to a strip (1) for flexibly supporting a wire (2) in the region of a twin-wire zone of a twin-wire section of a machine for producing a fibrous web, said strip comprising a movable top strip (3), which extends transversely to the running direction (L) of the wire (2) and over at least some regions of which the wire (2) slides during operation of the machine, and a movable supporting strip (4) which is connected rigidly to the movable top strip (3). The strip (1) according to the invention is characterized in that a flexible return device (11) has a plurality of movable return bows (12) which are distributed over the length of the movable supporting strip (4), can be brought at one end (12.1), at least temporarily, into engagement with the movable supporting strip (4) and can be acted upon, at least temporarily, at the other end (12.2) by at least one return element (13) arranged in each case between the fixed guide strip (6) and the movable return bow.

L'invention concerne une languette (1) d'appui déformable d'un tamis (2) dans la zone d'un tamis double d'une partie de tamis double d'une machine de fabrication d'une bande de fibres, qui comprend une languette mobile de tête (3) qui s'étend transversalement par rapport à la direction d'avancement (L) du tamis (2) et par laquelle au moins certaines parties du tamis (2) glissent lorsque la machine est en fonctionnement, et qui comprend une languette mobile de support (4) qui est reliée solidairement à la languette mobile de tête (3). La languette (1) selon l'invention est caractérisée en ce qu'un dispositif (11) de retenue déformable présente plusieurs étriers mobiles de retenue (12) répartis sur la longueur de la languette de support (4) mobile, qui peuvent s'engager au moins à certains moments par une extrémité (12.1) sur la languette mobile de support (4) et qui peuvent être sollicités à l'autre extrémité (12.2) au moins une partie du temps par au moins un élément de retenue (13) disposé entre la languette fixe de guidage (6) et la retenue mobile.

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