B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 75/00 (2006.01) B65H 18/02 (2006.01)
Patent
CA 2154503
A winding device capable of supporting a winding roller for web material, in particular, for paper, has a supporting arrangement which works from underneath in opposition to a deflection of the winding roller and which creates a compressed air cushion between the supporting arrangement and the winding roller. The air cushion is created by means of an over-pressure in a space between the support rollers that are placed underneath the winding roller. However, due to the changing winding radius, the sealing at the ends of the winding space is difficult to maintain. In order to achieve a support of the winding roller that is free of support rollers and that smooths the web material, it is now provided that the supporting arrangement has at least one support plate with an upper side which is substantially matched to the contour of the under side of the winding roller and in which there is configured at least one compressed air outlet opening, that the compressed air can exit through a gap between the winding roller and the support plate, and that the support plate can automatically adjust itself radially to the winding roller in accordance with the winding diameter.
L'invention concerne un dispositif d'enroulement capable de supporter un rouleau de bobinage pour un matériau en bande, en particulier du papier. Il comporte des éléments de support travaillant à partir du bas en opposition à un abaissement du rouleau de bobinage et créant un coussin d'air comprimé entre les éléments supports et le rouleau. Le coussin d'air est créé par surpression dans un espace compris entre les rouleaux supports qui sont placés sous le rouleau de bobinage. Toutefois, en raison du changement de rayon de bobinage, il est difficile de maintenir l'étanchéité aux extrémités de l'espace de bobinage. Pour obtenir un support de rouleau de bobinage qui est exempt de rouleaux supports et qui lisse le matériau en bande, il est maintenant prévu que les éléments supports comprennent aux moins une plaque support dont le côté supérieur épouse substantiellement le contour de la sous-face du rouleau de bobinage et qui comprend au moins une sortie d'air comprimé, que l'air comprimé puisse sortir par une ouverture entre le rouleau de bobinage et la plaque support, et que la plaque support puisse automatiquement s'ajuster radialement au rouleau de bobinage en fonction du diamètre de bobinage.
Conrad Hans-Rolf
Junk Dieter
Kirby Eades Gale Baker
Voith Sulzer Finishing Gmbh
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