Method for automatically controlling the triggering of the sharpening of the cutting edge of a cutting blade for a cutting machine

A method for automatically controlling a triggering of a sharpening of the sharp edge of a cutting blade for a machine for cutting a mattress of flexible material, comprising:

• determining components of a mechanical action torsor at the guiding point of the cutting blade in the blade reference, the components comprising:
• the frontal force, the lateral force, the vertical force, the rolling moment, the pitching moment, and the yawing moment of the cutting blade;
• determining an admissible threshold value for a variable established from the at least one of the components of the mechanical action torsor and based on geometric parameters of the cutting blade and on thickness and material characteristics of the mattress to be cut;
• monitoring, during the cutting of the material, variations in amplitude of the variable chosen to determine the threshold value;
• and
• automatically triggering an alert to request a sharpening cycle of the sharp edge of the cutting blade as soon as the amplitude of the variable chosen to determine the threshold value reaches said threshold value.