Method and facility for winding a rubber strip onto a form of revolution

A method for winding a strip of rubber onto a form of revolution, the method comprising:

• forming a strip of a predetermined length;
• placing a front edge mark on a front end of the strip, and placing a rear edge mark on a rear end of the strip;
• driving the strip longitudinally towards the form;
• arranging the front end of the strip on the form;
• and
• driving the form so as to wind the strip onto the form,
• wherein, in a first phase of the method, the driving of the strip and the driving of the form are synchronized such that a speed of displacement of the rear edge mark and a speed of displacement of the front edge mark are substantially identical, so as not to modify the length of the strip, and
• wherein, in a second phase of the method, the driving of the strip and the driving of the form are controlled depending on an angular position of the form at an end of the first phase and on a position of the rear edge mark such that the speed of displacement of the rear edge mark and the speed of displacement of the front edge mark vary relative to each other, so as to compensate for a variation in the length of the strip.

An installation for winding a strip of rubber onto a form of revolution, the installation comprising:

• a strip producer structured to form a strip of a predetermined length;
• a marker structured to apply a front edge mark to a front end of the strip, and to apply a rear edge mark to a rear end of the strip;
• a longitudinal transport driver structured to drive the strip longitudinally towards the form;
• a gripper structured to arrange the front end of the strip on the form;
• a winding driver structured to drive the form in order to wind the strip onto the form;
• a controller structured to:
• during a first phase, synchronize the longitudinal transport driver and the winding driver such that a speed of displacement of the rear edge mark and a speed of displacement of the front edge mark are substantially identical, so as not to modify the length of the strip, and
• during a second phase, control the longitudinal transport driver and the winding driver depending on an angular position of the form at an end of the first phase and on a position of the rear edge mark such that the speed of displacement of the rear edge mark and the speed of displacement of the front edge mark vary relative to each other, so as to compensate for a variation in the length of the strip.