| 摘要 |
<p>A method for controlling the parameters of a web winding machine affecting the roll (10) structure which includes a system that utilizes a density analyzer (25), a basis weight measuring device (19, 21), and a caliper measuring device (24) with customized software and a PID control of the equipment controlling the tension, nip pressure and torque transmitted to the web (18) which is being wound and a computer (26). The basis weight and caliper measuring devices (19, 21, 24) are mounted at a location so as to mesure the web properties immediately before it is wound into roll form. The density analyzer (25) is connected to the machine in its usual form. The basis weight and caliper measuring device (19, 21, 24) determines the ''free sheet'' density while the density analyzer (25) determines the ''wound roll density''. The difference between these two values can be used to control the parameters affecting the roll (10) structure.</p> |
