Tensioning apparatus and method for an interlaced thread
OwnerStephan Kuster, Heinz Kusterinventors
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Abstract
A tensioner for gripping an inserted thread in a weaving shed and applying or removing tension based on the thread's inserted tension. Through the use of sensors in a thread gripper, the inserted thread tension is compared to a desired value in a controller which controls the direction of rotation of a drive motor connected to the tensioner. A thread positioner which cooperates with the gripper assures that the threads are repeatedly gripped at the same general location. This expedites the detection of the inserted tension and avoids false initial tension readings.
Claims11
A thread tensioning device which grasps the end of a thread inserted into a weaving shed with a gripper mounted on a torque producing device that holds the gripper in a position where the tension on the inserted thread is substantially equal to a predetermined tension.
A device for tensioning a thread as it is inserted in an weaving shed for interlacing, the device comprising:
- means for detecting an inserted thread in an open shed in a given direction of travel;
- means for gripping the inserted thread,
- said gripping means holding the thread and moving in the direction of travel to apply tension to the inserted thread and holding the thread under tension until it is fully interlaced by a closed shed.
A device for adjusting the tension on a thread as it is inserted in a weaving shed for interlacing, the device comprising:
- means for storing a desired thread tension;
- means for gripping an inserted thread;
- means for detecting the inserted thread's tension;
- means for comparing the detected tension to the desired tension;
- means for moving the gripper means along with the inserted thread in a desired direction and;
- means for controlling movement of the gripping means to adjust the detected tension toward the desired tension.
Dependencies are inferred from the claim text.