Process and device for opening folded print products

Details Process and device for opening folded print products Process and device for opening folded print products

B - Operations, Transporting

65

H

B65H 5/30 (2006.01) B05D 1/06 (2006.01) B05D 3/00 (2006.01) B65H 5/32 (2006.01) B65H 29/04 (2006.01) C09D 5/03 (2006.01) C09D 5/46 (2006.01)

Patent

CA 2093400

Printed products are transported in the direction of conveyance suspended, held by their fold, from transporting clamps of a conveying device. The end area of the printed products rests on a supporting mechanism and the uppermost product part protrudes with its marginal section over the bottommost product part. To the two product parts there is in each case assigned a gripper of the opening device. The grippers are disposed on a revolutionally driven drawing member. The clamping tongue of the first gripper grips underneath the marginal section and, upon running up against an opening crank, lifts the product part from the bottommost product part. The second gripper grasps the lifted-off product part in the marginal section and, when the clamping tongue is lowered into the closed position, the latter clamps the product part between itself and the clamping jaw of the first gripper, by the end edge. The first gripper revolves at a greater velocity than the second gripper. Thus, the two product parts are lifted apart in the direction of conveyance.

Des produits imprimés sont transportés en suspension par un convoyeur muni de pinces pouvant saisir les produits par leur bordure. La surface terminale des produits imprimés repose sur un support et leur partie la plus élevée surplombe à la marge la partie la moins élevée. Une pince d'un système de déploiement est prévu pour chacune des deux parties du produit. Ces pinces se situent sur un élément d'étirement fonctionnant de manière rotative. L'une des mâchoires de la première pince se glisse sous la marge et, sous l'impulsion verticale d'une tige de déploiement, soulève le produit par rapport à sa partie la moins élevée. La seconde pince saisit à la marge la partie ainsi soulevée et, lorsque cette pince se referme, la partie se trouve saisie par son rebord entre les mâchoires de la première et de la seconde pince. La première pince tourne à plus grande vitesse que la seconde. Les deux parties du produit sont donc soulevées et déployées dans la direction du convoyage.

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