| 摘要 |
PURPOSE:To control a tail end stop position with extremely high accuracy by deriving exactly the diameter of a coil which is being wound, and stopping a winder at the time point when a target tail end moving extent which follows variations of the diameter of the coil becomes equal to a tail end moving extent after the tail end has passed through a tail end passing detector actually. CONSTITUTION:A rotary pulse signal oscillator 20 is provided on a revolving shaft of a winder 21, and in accordance with its pulse signal, a coil diameter D is derived exactly by a coil diameter operator 12 until winding is completed, and following variations of the diameter D, a target tail end moving extent L is calculated by a tail end stop position setting device 15 until winding is completed. Also, by using the diameter D and said pulse signal, a tail end moving extent operator 13 calculates successively an actual tail end moving extent La after a passing signal when the tail end passes through a tail end passing detector 3 has been detected. From both the moving extents L, La, the remaining tail end length DELTAL is derived by a tail end stop control part 16, passes through a speed command part 8 together with a signal of the diameter D and decreases a rotating speed of the winder successively, and the winder is stopped at the time point when both the moving extents L, La have become equal to each other.
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