Device for the longitudinal stitching of multipiece printed...

B - Operations – Transporting – 42 – B

Patent

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Details

B42B 4/02 (2006.01)

Patent

CA 2284605

The invention relates to a rotating stitcher (4) for driving U-shaped wire stitches (43) into printed products (3) being conveyed along a linear path. The invention also relates to a stapling closing device (5) co-operating with the stitcher (4), for closing the wire stitches (43). The rotating stitcher (4) has stitching heads (7) which are hinged around a rotating support (6). A control device guarantees that the stitching heads (7) are swung into a position where the direction of displacement (E) of the stitch plunger (10) is at right angles to the direction of transport (A) of the products (3) to be stitched. This takes place before or during entry of the stitching head (7) into the stitching area. While the wire stitches are driven in and stitched, the stitching heads (7) are held in this position and thus move linearly in the stitching area. The heads (32) of the stapling closing device (5) are guided in the same way, so that they move linearly during stapling, just like the allocated staple head (7).

Pour le positionnement d'agrafes en U (43) dans des produits imprimés (3) transportés le long d'un parcours linéaire et la fermeture de celles-ci (43), il est prévu un appareil d'agrafage (4) et un dispositif de fermeture des agrafes (5) coopérant avec ledit appareil. L'appareil d'agrafage (4) entraîné en rotation présente des têtes agrafeuses (7) montées pivotantes sur un support entraîné en rotation (6). Un dispositif de commande fonctionne de façon qu'avant/ ou lors de l'introduction de la tête agrafeuse (7) dans la zone d'agrafage, les têtes agrafeuses (7) pivotent en une position dans laquelle le sens de déplacement (E) du coulisseau repoussant les agrafes (10) est perpendiculaire au sens de progression (A) du produit à agrafer (3). Pendant le processus de fixation et de fermeture des agrafes, les têtes agrafeuses (7) sont maintenues en cette position et effectuent ainsi un déplacement linéaire dans la zone d'agrafage. Les têtes de fermeture des agrafes (32) du dispositif de fermeture (5) sont commandées de façon correspondante, afin d'effectuer, tout comme la tête d'agrafage associée (7), un déplacement linéaire durant le processus de fermeture des agrafes.

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