Machine and method for producing drink stirring sticks made of paper material

A machine for producing drink stirring sticks made of paper material comprising:

• a feeding device configured to feed a web or sheet made of paper material along a predetermined feeding direction;
• said machine being characterized in that it comprises a separation unit positioned along said predetermined feeding direction, said separation unit being configured to separate a plurality of curved elongated portions from said web or sheet made of paper material, in that said separation unit comprises at least one cutting member configured to cut said web or sheet made of paper material and to obtain a plurality of cutting lines, each of which perimetrically delimiting a respective elongated portion having a longitudinal axis;
• in that said separation unit comprises a folding device configured to fold said web or sheet made of paper material in such a way to separate said plurality of curved elongated portions from said web or sheet made of paper material and in that said folding device is equipped with:
• a first folding member provided with at least one protruding portion;
• a second folding member provided with at least one recessed portion having a shape complementary to said or each protruding portion of said first folding member, said or each protruding portion and said or each recessed portion being arranged to be positioned adjacent to respective sides of said web or sheet made of paper material, to apply a folding action on said web or sheet made of paper material at a folding zone.