An applicator head for reinforcement yarns on a deposition surface, this head including: - a cutting mechanism of the reinforcement yarns upstream from an application zone, including at least one cutting unit and one motor unit giving the possibility of moving the cutting unit, - and a redirection system of the reinforcement yarns after their cutting, at least up the application zone, including at least one drum characterized in that the cutting unit is mounted at the end of an arm rotatably connected with an axis driven into rotation by the motor unit giving the possibility of moving the cutting unit according to a circular alternating movement, according to a forward stroke in one direction of rotation for cutting of the reinforcement yarns on the one hand, and according to a return stroke in a direction of rotation opposite to the forward stroke on the other hand, for disengagement of the cutting unit with respect to the reinforcement yarns, the drum being mounted on the axis while being bound to the latter so as to be driven into rotation by the motor unit of the cutting mechanism ensuring that the redirection system is motor-driven, the redirection system including a clamping mechanism of the reinforcement yarns against the drum, the clamping mechanism including a counter-drum mounted facing the drum so that the reinforcement yarns pass between the drum and the counter-drum, the counter-drum being controlled in motion by a separation/recontacting system with respect to the drum so as to move the counter-drum either by separating them before rotation of the drum in its forward stroke freeing the reinforcement yarns, or in reconnection before rotation of the drum along its return stroke in order to ensure frictional driving of the reinforcement yarns by the drum during its rotation, at least up to the application zone. - a cutting mechanism of the reinforcement yarns upstream from an application zone, including at least one cutting unit and one motor unit giving the possibility of moving the cutting unit, - and a redirection system of the reinforcement yarns after their cutting, at least up the application zone, including at least one drum characterized in that the cutting unit is mounted at the end of an arm rotatably connected with an axis driven into rotation by the motor unit giving the possibility of moving the cutting unit according to a circular alternating movement, according to a forward stroke in one direction of rotation for cutting of the reinforcement yarns on the one hand, and according to a return stroke in a direction of rotation opposite to the forward stroke on the other hand, for disengagement of the cutting unit with respect to the reinforcement yarns, the drum being mounted on the axis while being bound to the latter so as to be driven into rotation by the motor unit of the cutting mechanism ensuring that the redirection system is motor-driven, the redirection system including a clamping mechanism of the reinforcement yarns against the drum, the clamping mechanism including a counter-drum mounted facing the drum so that the reinforcement yarns pass between the drum and the counter-drum, the counter-drum being controlled in motion by a separation/recontacting system with respect to the drum so as to move the counter-drum either by separating them before rotation of the drum in its forward stroke freeing the reinforcement yarns, or in reconnection before rotation of the drum along its return stroke in order to ensure frictional driving of the reinforcement yarns by the drum during its rotation, at least up to the application zone.