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AssigneeNoxon S.P.A.
InventorsMoreno Predieri, Giovanni Bevilacqua
Estimating the term…
An assembly is disclosed for unrolling stretch film and pre-stretching the film as it is fed from the assembly to goods/products to be wrapped. The assembly comprises a member for controlling the unwinding of the film from a spool, and a cutter arranged downstream of the control member and capable of being operated to lacerate the film, the assembly further comprising, downstream of the cutter, a member for preventing the return of the film in the direction opposite to the one in which it leaves the assembly. The cutting procedure in accordance with the invention envisages, following an initial stop of the film during which it is lacerated, the unlocking of the control member to permit the laceration zone to pass downstream of the return preventing member, and then a new stop of the film to complete the cut following relative motion between the assembly and the goods/products to be packed.
An assembly for unrolling stretch film from a spool and pre-stretching the film as it is fed from the assembly towards the goods/products to be wrapped, comprising a member for controlling the forward movement of the film downstream of the spool and a cutter for lacerating the film, arranged downstream of the control member, the assembly being characterized in that, downstream of the cutter, it comprises a member for preventing the return of the film in the direction opposite to the one in which it leaves the assembly.
A method for cutting stretch film fed by an assembly for unrolling and pre-stretching the film toward goods/products to be wrapped due to the effect of relative movement between the merchandise/products and the assembly, the latter comprising a member for controlling the unwinding of the film from a spool and a cutter for severing the film, the method comprising the steps of bringing the film to a halt by locking the control member, and simultaneously operating the cutter so as to the lacerate the film, the cut being completed due to stretching of the film following the wrapping movement, the method further comprising the step of unlocking the control member, following laceration by the cutter, so as to permit the laceration to pass generally downstream of a member for preventing the return of the film in the direction opposite the one in which it leaves the assembly, the film then being brought to a halt by the control member in order to complete the cut.
Dependencies are inferred from the claim text.