Winding device 1

Input: pink shaft to which the yellow spool is fixed. The winding black wire makes the green pulley rotate. The latter moves the wire along the length of the spool to perform the helical winding. The key element is the red swing slider pivoted inside the pulley and moves along the helix grooves of the blue stationary shaft. See a real device (minute 0:27): STEP files of this video: Inventor files of this video: