| 摘要 |
Maintaining the pallet (1) stationary, the procedure is characterised essentially by subjecting the spool (2) supplying the packing film, to a movement around said pallet (1) of rectangular trajectory (3), whereby in each cycle or turn of the spool (2) four segments of rectilinear displacement are defined therefor related one to another through orthogonal inflections, whereby the pressure of the film is maintained constant throughout the wrapping, avoiding risks of the same being torn. To this end the spool (2) is mounted on a headstock (4) in association directly or indirectly with the free extremity (8) of the multiple articulated arm (7) of a robot (6), with an operating program developed for the aforementioned movements, in such a manner that the stationary nature of the pallet (1) during the packing prevents the load falling off the pallet, the special movement of the spool (2) around the pallet and its load prevents tearing of the plastic film, and the reduced weight of the headstock (4) with its fittings considerably limits the inertia of the machine. <IMAGE> |
