Device and method for aligning a stack of sheets arranged...

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 31/36 (2006.01) B65H 29/24 (2006.01)

Patent

CA 2456278

The invention relates to a device and a method for aligning at least the front edge of several sheets (04) arranged in a stack, one above the other, whilst maintaining the order of the sheets (04). Said device comprises a stacking table (16), one side of which is provided with a front edge stop for aligning the front edge of the sheets (04). A supporting platform, upon which a stack of sheets (04) can be placed with non-aligned front edges, is arranged upstream of the stacking table (16). The device is provided with a sheet feeder (02), which removes the sheets (04) from the supporting platform by placing them in an overlapping stream with the front edges placed under the preceding sheets. A turning device (06) is provided downstream of the sheet feeder (02), said device turning the overlapping stream in such a way that the front edge area of each sheet (04) is freely accessible. Downstream of the turning device (06), the invention is provided with a conveyer device (17), by means of which the sheets (04) are conveyed, forming a new stack, to the front edge stop of the stacking table (16), where their front edges can be aligned.

L'invention concerne un dispositif et un procédé permettant d'aligner au moins le bord avant de plusieurs feuilles empilées tout en conservant l'ordre desdites feuilles. Ce dispositif comprend un plateau d'empilement dont une face est pourvue d'un dispositif d'arrêt de bords avant conçu pour aligner le bord avant des feuilles. Une plaque support, sur laquelle peuvent être empilées des feuilles dont le bord avant n'est pas aligné, est disposée en amont du plateau d'empilement. Ledit dispositif comprend un margeur destiné à retirer les feuilles empilées sur ladite plaque support en les plaçant dans une sortie en nappe, de sorte que les bords avant soient placés sous les feuilles précédentes. Un dispositif de retournement est disposé en aval du margeur et permet de retourner la sortie en nappe, de sorte que la zone du bord avant de chaque feuille soit librement accessible. Un dispositif de transport est disposé en aval du dispositif de retournement et est conçu pour transporter les feuilles, en formant une nouvelle pile, vers le dispositif d'arrêt de bords avant du plateau d'empilement où leurs bords avant sont alignés.

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