Splicing device for a continuous unwind stand

Details Splicing device for a continuous unwind stand Splicing device for a continuous unwind stand

B - Operations, Transporting

65

H

B65H 19/18 (2006.01)

Patent

CA 2169763

The invention concerns a splicing device for a continuous unwind stand, by means of which device the new machine reel (13) brought to the unwind stand is connected at full speed with the web (P) of the machine reel (11) that is being emptied. The splicing device comprises a splicing roll (12), by whose means the web of the machine reel (11) that is being emptied is pressed into contact with the splice (14) placed on the new machine reel (13), and at least one second roll (12b). The splicing roll (12a) and the second roll (12b) are attached to a lever device (16), which is mounted by means of an articulation point (17) placed between the shafts of said rolls (12a, 12b) so that the run of the web (P) before splicing (W1) and the run of the web (P) during splicing (W2) are such that the length of the web (P) during splicing and when said rolls (12a, 12b) are in their basic positions is substantially equal.

L'invention porte sur un dispositif de raccordement pour poste de dévidage en continu dans lequel une nouvelle bobine (13) peut être raccordée en pleine vitesse à la queue du rouleau (11) en cours de dévidage. Le dispositif de raccordement comporte un cylindre raccordeur (12a) pressant le rouleau en cours de dévidage contre la bande d'accrochage (14) de la nouvelle bobine, et au moins un autre cylindre (12b). Les cylindres (12a et 12b) sont fixés à un système de leviers (16) monté sur un point d'articulation (17) situé entre leurs axes de façon à ce que le défilement du rouleau (P) avant le raccordement (W¿1?) et pendant le raccordement (W¿2?) soient tels que la longueur du rouleau (P) défilant pendant le raccordement (W¿2?) et celle défilant pendant que les cylindres (12a et 12b) occupant leur position de base, soient sensiblement identiques.

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