| Patent application number | Description | Published |
|---|
| 20080210804 | Double Control Loop Method And Device For Ensuring Constant Tension Yarn Feed To A Textile Machine - A method for feeding a yarn (F) under constant tension to a yarn processing point of a textile machine (T) distant from spool ( | 09-04-2008 |
| 20090139271 | Method And Arrangement For Feeding, With Yarn Of Constant Absorbed Length, A Textile Machine Operating On A Plurality Of Yarns - A method for feeding a plurality of yarns with constant values of fed length to a textile machine ( | 06-04-2009 |
| 20100116923 | METHOD AND DEVICE FOR THE CONSTANT-TENSION FEED AND TAKE-UP OF A YARN FED TO A TEXTILE MACHINE - A device for controlling the feed of a yarn to a textile machine operating intermittently on the yarn, there being provided elements to sense the tension of the yarn and elements for measuring and modifying its feed speed, all connected to control and regulator elements for the tension and speed parameters, which continuously measure the values of both parameters during the feed of the yarn to the textile machine so as to act on a rotary member in order to modify the tension of the yarn when necessary. The rotary member is movable in a controlled manner in the two opposing directions of rotation to feed the yarn to the textile machine or to rewind it in order to prevent its accumulation in correspondence with the machine, the tension of the yarn fed or rewound being maintained at constant values. | 05-13-2010 |
| 20110006096 | DEVICE AND METHOD FOR THE CONSTANT TENSION FEEDING OF THREADS OR YARNS FED IN A DISCONTINUOUS WAY - Device and method for constant tension feeding, threads or yarns fed to textile or winding machine or metallic wire to similar machine, in discontinuously with phase sequences. The thread motion has at least first and second feeding or absorption states following each other in time. A controller, connected to a tension detector and thread accumulator, intervenes on the accumulator based upon tension value from the detector. A compensator, between the accumulator and tension detector, cooperates with thread to compensate variation of feeding or absorption state of the thread upon passage between each first and second feeding or absorption state. The controller intervenes to modify the accumulator's action on thread and maintain tension value detected by the detector at set value. Interaction between thread and compensator keeping constant tension value during the changing phase of the feeding state. The compensator freely moveable under action of thread relative to a resting position. | 01-13-2011 |
