US 6,539,982 B1Granted

Loom with an insertion brake

AssigneeTe Strake Textile B.V.

InventorGijsbertus De Swart

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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.

Claims6

Dependent claims

A loom with an insertion brake disposed between a yarn feeder and a shed of the loom, said loom comprising:

a movable brake element movable between two fixedly disposed yarn guides from a position of rest to an operative position, the movable brake element being connected to a driving motor, excitation of the driving motor by current being controlled by an electronic system,
at least one program for a predetermined time and a predetermined position of the movable brake element being incorporated in said electronic system,
the electronic system including a position detection sensor for sensing an instantaneous position of the brake element and generating an instantaneous brake element position signal, the electronic system comparing the instantaneous brake element position signal with a desired predetermined position of the movable brake element according to the program and, if a deviation is established by the electronic system between the sensed instantaneous brake element position and the desired predetermined position of the movable brake element, the electronic system controlling an amount of current being supplied to the driving motor so that said deviation between the sensed instantaneous position of the brake element and the desired predetermined position of the movable brake element is at least largely eliminated.

Dependencies are inferred from the claim text.