Importance

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Abstract

A loom with an insertion brake disposed between a yarn feeder and the shed of the loom, which insertion includes a movable brake element, which is capable of movement between two fixedly disposed yarn guides from a position of rest on one side of the yarn to an operative position on the other side of the yarn. The movable brake element is connected to a driving motor, the excitation of which is controlled by an electronic system, in which at least one program for the time and the position of the movable brake element is incorporated. The electronic system includes a position detection sensor for sensing the instantaneous position of the brake element. The electronic system compares the instantaneous brake element position with the position which is desired according to the program and, if a deviation is established between the sensed instantaneous position and the desired position, controls the amount of current being supplied to the motor in such a manner that the deviation is at least largely eliminated in combination with the reactive force of the yarn.

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First Claim