Packing procedure and machine for putting into practice thereof

Details Packing procedure and machine for putting into practice thereof Packing procedure and machine for putting into practice thereof

B - Operations, Transporting

65

B

B65B 11/02 (2006.01)

Patent

CA 2401584

While keeping the pallet (1) static, the method is essentially characterized in that the reel (2) supplying the wrapping film is moved around said pallet (1) in a rectangular trajectory (3) so that four segments of rectilinear displacement are defined in every cycle of turn of the reel (2) for said reel, which are related to one another by orthogonal inflections. The film pressure is maintained constant throughout wrapping thereby preventing the film from breaking. To this end, the reel (2) is mounted in a head (4) directly or indirectly associated with the free end (8) of the multiple articulated arm (7) of a robot (6) using a work program designed for the above-mentioned movements so that the static nature of the pallet (1) during wrapping prevents a the load from dropping off the pallet. The special movement of the reel (2) around the pallet and its load prevents breaking of the plastic film. The light weight of the head (4) and its accessories considerably limits inertia in the machine.

Tout en maintenant la palette (1) statique, ce procédé consiste principalement à déplacer une bobine (2) de distribution de film de conditionnement dans un mouvement suivant une trajectoire (3) rectangulaire autour de la palette, de façon que lors de chaque cycle ou tour de la bobine (2), quatre tronçons de déplacement rectiligne soient définis en rapport les uns avec les autres par l'intermédiaire d'inflexions orthogonales, grâce à quoi la pression du film est maintenue constante durant tout le conditionnement, ce qui permet d'éviter les risques de rupture du film. A cette fin, la bobine (2) est montée sur une tête (4) reliée directement ou indirectement à l'extrémité libre (8) d'un bras à articulations multiples (7) d'un robot (6) possédant un programme de travail conçu pour effectuer les mouvements cités, de façon que le caractère statique de la palette (1) durant le conditionnement permet d'éviter la chute de la charge de la palette. Le mouvement spécial de la bobine (2) autour de la palette et de la charge permet d'éviter la rupture du film plastique et le poids réduit de la tête (4) avec ses accessoires permet de limiter considérablement l'inertie de la machine.

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