High-speed cutting device and method for cutting a tire reinforcement

A method for applying tire reinforcement sections to a support using a machine for manufacturing the tire reinforcement sections, the machine including a guide for guiding a reinforcement cord along a longitudinal direction of the reinforcement cord to a cutoff point, a cutting device for cutting the reinforcement cord at the cutoff point at a predetermined cutting interval to form the tire reinforcement sections, the cutting device comprising a knife-supporting disk, a knife mounted on the knife-supporting disk, and a motor driving an input shaft, wherein the knife-supporting disk is coupled to the input shaft by a drive connection, the method comprising the steps of:

• feeding the reinforcement cord through the guide to the cutoff point;
• driving the input shaft by the motor at a selected input shaft rotational speed;
• rotating and moving the knife-supporting disk by the drive connection in response to only the driving of the input shaft such that knife speed and the cutting interval are both controlled only by said selected input shaft rotational speed, and the knife moves along a closed path which passes proximate the cutoff point but passes through the cutoff point only every n passes of the knife proximate the cutoff point, wherein n is greater than or equal to two, the reinforcement cord being cut to form the tire reinforcement sections when the knife passes through the cutoff point;
• and
• depositing the cut tire reinforcement section onto the support.