Folding unit for pourable food product packaging machines

A folding unit for producing packages of pourable food products from sealed packs having each a main portion and opposite end portions arranged on opposite sides of said main portion;

• each pack comprising, for each end portion, a fin and a pair of flaps projecting laterally from said main portion;
• said unit comprising:
• a first movable conveying member which is fed with a plurality of said packs and which feeds the pack along a forming path;
• and
• folding means which interact with each said pack along said forming path to fold relative said end fin onto a relative said end portion;
• wherein said folding means include:
• a first member movable along said forming path together with said conveying member and defining a first slot receiving, in use, said end fin;
• and
• a second member movable relative to said first member between a first position in which it engages at least partially said slot, so as to fold said end fin onto a relative said end portion, and a second position in which it leaves free said slot.