Packaging unit for packaging articles into boxes and relative packaging method

A method for packaging articles into boxes, comprising:

• moving a mandrel along a circular trajectory,
• arranging a blank at least partially wrapped around the mandrel containing therein one or more of said articles, to form a partially closed box around the mandrel and such that the at least partially wrapped blank has an outer flap and an inner flap configured to be mutually overlapped and fixed to form the partially closed box,
• folding by a closing device the outer flap, the closing device following the mandrel along the circular trajectory, and
• abutting and folding by a folding device the inner flap in a direction of the mandrel by moving said folding device towards the mandrel when the blank is at least partially wrapped onto the mandrel.