Abstract: 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.

Abstract: A testing machine to perform measurements and/or tests on a plastic film comprises a basic structure provided with a supporting plane, an unwinding station provided with an unwinding roller that supports a reel of film, a pre-stretching station arranged to unwind and to pre-stretch the film from the reel. The testing machine further comprises a wrapping station provided with a testing drum to be wrapped by the film coming out from the pre-stretching station, a plurality of measuring groups to perform measurements of dimensional and/or physical parameters of the reel and of the film, and a plurality of testing groups to perform respective tests and measurements on the film in order to determine mechanical and physical properties thereof.