Method and apparatus for transporting a sheet from a dryer...

D - Textiles – Paper – 21 – G

Patent

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Details

D21G 9/00 (2006.01) B65H 20/06 (2006.01)

Patent

CA 2469122

A system (10) and method for transferring a continuously advancing paper web from a dryer (12) to a reel section is provided. The system includes a first fabric (20) defining a first moving conveyor. The first fabric (20) may be a permeable fabric, which is positioned downstream from the dryer (12). A second fabric (30), which may also be permeable and defines a second moving conveyor (30), is also included. The first moving conveyor (20) overlaps the second moving conveyor (30) for a predetermined distance, and the first (20) and second (30) moving conveyors are configured to receive the paper web (18) between the conveyors. A vacuum device (24) is rotatably disposed against the first moving conveyor (20), and the dryer (12) and the vacuum device are disposed relative to each other to form an open draw. The vacuum device is configured to produce a vacuum to attract the web (18) to the first fabric (20) for transferring the advancing web into the predetermined distance where the first (20) and second (30) conveyors overlap.

La présente invention se rapporte à un système (10) et à un procédé permettant de transférer une feuille de papier avançant de manière continue d'un dispositif de séchage (12) jusqu'à une section de bobine. Le système comprend une première toile (20) définissant un premier transporteur mobile. La première toile (20) peut être une toile perméable qui est positionnée en aval du dispositif de séchage (12). Une seconde toile (30), qui peut également être perméable et définit un second transporteur mobile (30), est également utilisée. Le premier transporteur mobile (20) recouvre le second transporteur mobile (30) sur une distance préétablie, et ces premier (20) et second (30) transporteurs mobiles sont conçus pour recevoir entre eux la bande de papier (18). Un dispositif d'aspiration (24) est disposé rotatif contre le premier transporteur mobile (20), et le dispositif de séchage (12) et ce dispositif d'aspiration sont disposés l'un par rapport à l'autre de manière à former un tirage ouvert. Le dispositif d'aspiration est conçu pour produire une aspiration qui attire la bande (18) vers la première toile (20) de manière à transférer la bande en mouvement vers la longueur préétablie sur laquelle les premier (20) et second (30) transporteurs se recouvrent.

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