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Machine translation
1. (WO1980001794) DEVICE FOR ROLLER CHANGE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001794    International Application No.:    PCT/DE1980/000016
Publication Date: 04.09.1980 International Filing Date: 20.02.1980
IPC:
B65H 19/18 (2006.01)
Applicants:
Inventors:
Priority Data:
2906598 21.02.1979 DE
Title (EN) DEVICE FOR ROLLER CHANGE
(FR) DISPOSITIF PERMETTANT D"OBTENIR UN CHANGEMENT DE ROULEAUX VOLANT
Abstract: front page image
(EN)The device allows to perform a change of rollers during the unrolling of a web which is cut out into sheets in a transverse cutter (3) and unrolled from a roller (7), (8) arranged on a roller support (2). This web has only a minimum overthickness at its joint while having a solid joint. The roller support (2) is provided with carriages (9, 10) for at least two rollers (7, 8). During changing of rollers, a double web composed of a tail section (11) and a head section (12) is unrolled. A cutting station (14) used to cut the double web, precedes a gluing station (15) operated with a time delay with respect to the cutting station to connect the end (30) of the tailing section (11) with the beginning (31) of the head section (12) by means of an adhesive tape (23). A feed roller (13) drives the double web. Traction members (16) arranged at the vicinity of the gluing station (15) and being actuated independently, cooperate with the head (12) or tail (11) sections so as to act on the front and of the respective off-cut web located before of after the cutting station.
(FR)Le dispositif permet un changement de rouleaux volant lors du deroulement d"une bande qui est decoupee en feuilles dans une coupeuse transversale (3) et deroulee d"un rouleau (7, 8) dispose sur un support de rouleau (2). Cette bande n"aura qu"une sur-epaisseur minimale a son endroit de raccordement tout en assurant un raccord solide. Le support de rouleau (2) est muni de chariots (9, 10) pour au moins deux rouleaux (7, 8). Lors d"un changement de rouleau on deroule une double bande composee d"un troncon de queue (11) et d"un troncon de tete (12). Une station de coupe (14) servant a couper la double bande, precede une station de collage (15) activee en retard par rapport a la station de coupe pour relier la fin (30) du troncon de queue (11) avec le debut (31) du troncon de tete (12) au moyen d"un ruban adhesif (23). Un rouleau d"avance (13) entraine la double bande. Des organes de traction (16) disposes pres de la station de collage (15) et pouvant etre actionnes de facon independante, cooperent avec les troncons de tete (12) ou de queue (11) de facon a agir sur l"extremite avant de la chute de bande respective situee avant ou apres la station de coupe.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)