Patent ID: 8020361
Filing Date: 2011-09-20
Classification: B65B,B65G

Abstract:
1. Device for transferring cardboard box blanks for a wrapping and packaging machine, which device extends between a station for forming cutouts and a conveyor for removing boxes obtained, which transfer is carried out according to a cycle that comprises operations of erecting a cardboard cutout, filling the box blank obtained and pressing said blank at a pressing station in order to transform the blank into a box, which device includes at least a carriage that moves longitudinally under a plurality of stations, including the pressing station and a forming station, on a guide system comprising tracks and/or slides, which guide system is parallel to a soleplate of said wrapping and packaging machine, that extends over the entire length of said stations and on which said box blank advances, which carriage has at least a clamp system comprising mobile upstream arms and downstream arms for gripping said blanks and boxes, and a push member, in which the clamp system and push member enables said blanks and boxes to be moved on said soleplate, then pushed onto said removal conveyor, which upstream and downstream arms, respectively, are arranged in pairs on a plate that is vertically mobile with respect to said carriage in order to move said arms either into an active position for handling the blank when the blank is assembled on said soleplate at the forming station, or into an inactive position below said soleplate after said box has been released at the pressing station; and wherein the upstream arms comprise a projecting portion that is greater in height than that of the downstream arms and push member, which upstream arms are pivotably connected to the plate and pivot about a horizontal shaft, perpendicular to the movement of the carriage, to enable movement into the inactive position by retraction upstream of the machine and below the soleplate of the various stations when said carriage returns and then movement into the active position for handling the blank during the transfer movement performed by said carriage.