REWINDING SPEED CONTROL METHOD FOR FIBER THREAD STREAK REWINDING MACHINE

摘要

PURPOSE:To accurately further surely focus-control the actual speed to the preset speed with good efficiency in a short time by performing a slight change control, when a difference between the preset speed and the detected speed is within a fixed range, and a large change control when the difference exceeds a fixed value. CONSTITUTION:When a difference between the preset speed, set by a speed control means 5, and the detected speed, detected by a pulse generator 4 (speed detecting means), is within a range of 3 to 7rpm, + or -0.3 to 0.8 times the difference between the preset speed and the detected speed is added to the speed control means 5. While when the difference between the preset speed and the detected speed exceeds 7rpm, + or -1.5 to 2.5 times the difference between the preset speed and the detected speed is added to the speed control means 5. That is, when the actual speed is large detached from the preset value, a large control value is added with the actual speed early fetched to a range of the preset value, while when the actual speed is in a fixed range approximate to the preset speed, a little control value is added for performing a control in a more accurate control range.