Patent ID: 7187532
Filing Date: 2007-03-06
Classification: B65H,G01D

Abstract:
1. A device for stabilizing an elongated metallic object of magnetic material, the metallic object being intended to be transported along a transportation path located in a plane (x), which includes a transportation direction and is substantially parallel to the longitudinal direction of the object in said path, comprising: a substantially stationary electromagnetic actuator arranged to apply a selected magnetic force to the object in response to a corresponding level of current, said actuator including at least a first actuating member having a winding for carrying the current arranged on a first side of the plane and at a selected distance from the plane, a sensor responsively coupled to the winding of the actuation member for sensing the level of the current through the winding depending an the position of the object with respect to the plane, wherein the substantially stationary electromagnetic actuator is arranged to apply the magnetic force to the object in response to the level of current sensed by the sensor, and wherein the magnetic force includes at least a force component, acting on the object and directed transversely to the transportation direction and transversely to the plane; and a control unit arranged to apply voltage pulses to the actuator in response to said sensed value, thereby generating said magnetic force.