Replacement apparatus for film reels and wrapping machine

A replacement apparatus for reels of film or band or web made of at least one between plastic and paper material, which can be associated with a wrapping machine for automatically replacing an exhausted reel mounted on said wrapping machine with a new reel, comprising:

• a supporting frame;
• a moving arm provided with a first end fixed to said supporting frame rotatable about a first rotation axis;
• a supporting element fixed to a second end of said moving arm rotatable about a second rotation axis;
• at least one reel changing carriage fixed to said supporting element and provided with a first reel holder shaft suitable to house a new reel of film or band or web to be mounted on said wrapping machine;
• a connecting element having opposite ends rotatably connected respectively to said supporting element and to said supporting frame in order to form with said supporting element, supporting frame and moving arm an articulated parallelogram mechanism capable to avoid rotations of said reel changing carriage during a rotation of said moving arm about said first rotation axis;
• a first driving arrangement for rotating said moving arm about said first rotation axis between a non-operating position, in which said supporting element is more spaced apart from said wrapping machine, and an operating position, in which said supporting element is closest to said wrapping machine in order to receive said exhausted reel and additionally or alternatively supply said new reel.

A replacement apparatus for reels of film or band or web made of at least one between plastic and paper material, which can be associated with a wrapping machine for automatically replacing an exhausted reel mounted on said wrapping machine with a new reel, comprising:

• a supporting frame;
• a moving arm provided with a first end fixed to said supporting frame rotatable about a first rotation axis;
• a supporting element fixed to a second end of said moving arm rotatable about a second rotation axis;
• a plurality of reel changing carriages fixed to said supporting element and each of which comprising a first reel holder shaft suitable to house a new reel of film or band to be mounted on said wrapping machine;
• a first driving arrangement for rotating said moving arm about said first rotation axis between a non-operating position, in which said supporting element is more spaced apart from said machine wrapping machine, and an operating position, in which said supporting element is closest to said wrapping machine;
• a second driving arrangement for rotating said supporting element about said second rotation axis so as to position a defined reel changing carriage of said plurality of reel changing carriages in a replacement position in order to receive said exhausted reel and additionally or alternatively supply said new reel;
• wherein said first driving arrangement comprises a first toothed fifth wheel, which is fixed to said supporting frame and rotatably supports said first end of said moving arm, and a first rotary actuator, which is fixed to said moving arm and is arranged to drive a first toothed wheel that engages said first toothed fifth wheel and wherein said second driving arrangement comprises a second toothed fifth wheel, which is fixed to said second end of said moving arm, and a second rotary actuator, which is fixed to said supporting element and is arranged to drive a second toothed wheel that engages said second toothed fifth wheel