Device for feeding carton blanks to a packaging machine

A device for feeding blanks to a packaging machine, including:

• at least one rotating group situated between a magazine with a stack of carton blanks and an inlet station of the packaging machine;
• picking up means supported by said group for stripping flat folded carton blanks from a bottom of said stack of blanks, when said group is in a picking up position, and for erecting picked up carton blanks into box-like configurations in an erecting position, and then for feeding the box-like configuration unfolded blanks to an inlet station of said machine, so as to place the unfolded blanks one by one at said inlet station in a placing position;
• at least one first kinematic series for controlling movement of said picking up means along a closed path, extending between said picking up position and said placing position;
• and
• at least one second kinematic series for controlling and maintaining a constant orientation of said picking up means;
• wherein said device further comprises that said group includes a framework carrying cam means, wherein said first kinematic series is defined by said cam means and a lever, which rotates about a rotation axis, said rotation axis defining a planetary element, supported by a satellite carrying rotor, in turn supported by said framework, and with said lever supporting said picking up means, said lever being moved in a way determined by the combination of the rotation of said rotor on an axis, parallel to said rotation axis, and by the rotation of the lever on the rotation axis, controlled by said cam means.