Machine for making absorbent sanitary articles

A machine for making absorbent sanitary articles,

• comprising at least one cutting unit configured to divide a continuous web into segments intended for manufacturing an absorbent sanitary article;
• the cutting unit comprises an anvil member and a cutting member acting in conjunction with the anvil member;
• the anvil member, rotating about a respective axis of rotation, for retaining the continuous web and the segments obtained therefrom;
• the cutting unit comprises a control and drive unit configured to control the movement of the cutting member at least as a function of the rotation speed of the drum of the anvil member;
• characterized in that
• the cutting member comprises a first cutting roller and a second cutting roller, distinct from each other, both acting in conjunction with the drum of the anvil member and each rotating about a respective axis of rotation;
• actuating means are configured to set the first cutting roller in rotation about its axis of rotation via respective motion transmission means and to set the second cutting roller in rotation about its axis of rotation via respective motion transmission means;
• the control and drive unit is configured to selectively command the actuation of the first cutting roller and the second cutting roller via the actuating means as a function of a first size range and a second size range of absorbent sanitary articles respectively, and to impart to the first cutting roller a law of motion corresponding to a respective size belonging to the first size range and to apply to the second cutting roller a law of motion corresponding to a respective size belonging to the second size range;
• each law of motion has respective accelerations and decelerations.