Pressure roll or continuous pressure belt

Details Pressure roll or continuous pressure belt Pressure roll or continuous pressure belt

B - Operations, Transporting

65

H

B65H 27/00 (2006.01)

Patent

CA 2659338

A pressure roll (12) or a continuous pressure belt for the formation of a winding nip using a spool in a winding machine for the winding of a material web, in particular paper web or paperboard web, is characterized in that the roll surface or, respectively, belt surface adjacent to the winding nip has helical, at least single-flighted grooves (18), the depth of each of which is in the range from approximately 0.4 mm to approximately 1.5 mm, and the width of each, preferably maximum width, is in the range from approximately 35 to approximately 60 mm.

L'invention concerne un cylindre de pressage ou une bande de pressage sans fin s'utilisant pour la formation d'une fente d'enroulement, avec un tambour dans une bobineuse, en vue d'enrouler une bande de matériau, notamment une bande de papier ou une ligne de carton. L'invention se caractérise en ce que la surface du cylindre ou de la bande adjacente à la fente d'enroulement présente des gorges s'étendant en spirale, des gorges au moins à pas simple, qui ont, dans chaque cas, une profondeur de l'ordre d'environ 0,4 à environ 1,5 mm et une largeur, de préférence maximale, de l'ordre d'environ 35 à environ 60 mm.

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