Wrapping machine
AssigneeAetna Group S.P.A.
InventorsDavide CASINI ROPA, Andrea RENZINI
Life of this patent
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AssigneeAetna Group S.P.A.
InventorsDavide CASINI ROPA, Andrea RENZINI
Estimating the term…
A wrapping machine includes an unwinding apparatus having a reel holder shaft and a system for removing from the unwinding apparatus a core of a film reel. The reel holder shaft includes a lower end having an abutment arm movable between an open configuration to support the core and a closed configuration to allow removing or inserting of the core. The system has a removing apparatus including a supporting element with a side wall having elastic elements forming an internal cavity having an upper opening and an upper peripheral edge which defines a supporting surface for supporting the core when the lower end of the reel holder shaft is inserted into the internal cavity. The elastic elements are configured to elastically bend and open wide when abutted by the abutment arm in the open configuration to enable the lower end entering the internal cavity.
1-13. (canceled)
A wrapping machine comprising an unwinding apparatus and a system for removing from said unwinding apparatus a core of film reel, said unwinding apparatus comprising a reel holder shaft suitable to support a film reel and having a lower end provided with at least one abutment arm movable between an open configuration to support said core inserted in said reel holder shaft and a closed configuration to allow removing or inserting said core from/into said reel holder shaft, said system comprising a removing apparatus which includes a supporting element provided with a side wall forming an internal cavity having an upper opening and an upper peripheral edge which bounds the upper opening and forms a flat supporting surface adapted for abutting and supporting said core when said lower end of said reel holder shaft is inserted into said internal cavity in a removing configuration with said abutment arm that is disengaged and spaced from said core, said wrapping machine being characterized in that said side wall of said supporting element comprises a plurality of elastic elements arranged angularly spaced about and parallel to a second longitudinal axis of said supporting element so as to form by means of respective central portions said internal cavity having a first diameter wider than a first transverse dimension of said lower end with said abutment arm arranged in said open configuration, said elastic elements comprising respective upper portions shaped so as to form said upper peripheral edge and said upper opening that has a second diameter substantially equal to an internal diameter of said core, said elastic elements being configured to elastically bend and open wide when abutted by said abutment arm in said open configuration in order to enable said lower end to enter said internal cavity.
Dependencies are inferred from the claim text.