Device for producing a scoring line in the cylindrical wall...

B - Operations – Transporting – 26 – F

Patent

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Details

B26F 1/18 (2006.01) B26D 3/08 (2006.01)

Patent

CA 2305766

A device for producing a scoring line in the cylindrical wall of a plastic cup, comprising: a mandrel (8), provided with elements for positioning and retaining a cup applied thereon; a plurality of jaws (24), an end whereof is articulated to the mandrel (8) so as to oscillate on radial planes; respective circular arc-shaped blades (30) being applied to the opposite end of the jaws and being arranged on a plane which is perpendicular to the axis of the mandrel; actuation elements for the jaws being further provided, as well as elements for actuating the mandrel (8) with respect to the actuation means so as to actuate the arc-shaped blades (30) radially from a position which is external to the cup (11) to a position for engaging the wall of the cup at which the blades (30) form a scoring line in the wall.

Ce dispositif permettant de constituer une ligne de rainurage dans la paroi cylindrique d'une coupelle en matière plastique comporte un mandrin (8) pourvu d'éléments visant à positionner une coupelle sur le mandrin et à la maintenir en place, une pluralité de mâchoires (24) dont une extrémité s'articule sur le mandrin (8) de manière à osciller sur des plans radiaux, différentes lames circulaires en forme d'arc (30), appliquées sur l'extrémité opposée des mâchoires et disposées sur un plan perpendiculaire à l'axe du mandrin, des éléments d'actionnement des mâchoires ainsi que des moyens permettant d'actionner le mandrin (8) relativement à ces derniers de manière à faire se déplacer les lames en forme d'arc (30), sur un plan radial, d'une position où elles se trouvent à l'extérieur de la coupelle (11) à une position où elles s'appliquent sur la paroi de la coupelle et y constituent une ligne de rainurage.

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