| 摘要 |
High Speed Precision Yarn Winding System A high-speed precision winder 110 for winding a running yarn onto a tube 17 to form a cross wound yarn package 18, including a spindle 21 for rotating the tube about a spindle axis, a yarn traversing mechanism 50a, 50b, 51, 52, 53, 54 for guiding running yarn received along an infeed path back and forth across a traverse zone, a bail roller 46 disposed in rolling contact with the peripheral surface of the yarn package being wound, a tensioner 80 for varying tension of the infeed yarn, and a control system for continuously regulating operation of the winder during formation of the package. The control system includes three separate variable speed drive motors 129, 166, 72 and respective associated motor control circuits forming a spindle drive, a traversing means drive, and a down pressure drive providing three independent motor systems which are separately controllable. Load cells 148 are associated with the bail roller and tensioner and output signals from the load cells and a predetermined set processing condition data applied to a microprocessor provide control signals to activate the motor to position the bail roller and traversing mechanism and regulate the spindle drive, traversing mechanism drive, and bail roller and traversing mechanism position to maintain a desired yarn density and tension throughout winding of the package. In this case the tube supporting mechanism is movable instead of the yarn guide propellor drive mechanism and the bale roller assembly.
|
