Godet roll for guiding, heating and conveying yarn
AssigneeNeumag GmbH & Co. KG
InventorsHeiner Kudrus, Dietmar von Zwehl
Life of this patent
Estimating the term…
Abstract
A godet roll for guiding, heating and conveying yarn on the circumference of a hollow-cylindrical godet roll casing. The godet roll casing is seated on a projecting support by at least one magnetic bearing having bearing pole windings, and a heating device with heating pole windings is arranged on the support. Some bearing pole windings and at least one heating pole winding are arranged together in one bearing plane, so that the bearing areas can be heated. Sensors provided for detecting the position of the godet roll casing are arranged outside of an annular chamber formed between the godet roll casing and the support in order to prevent a thermal overload of the sensors.
Claims23
A godet roll for guiding, heating and conveying yarn, the godet roll comprising a projecting support, a drivable hollow-cylinclrical godet roll casing forming a circumferential yarn guiding surface, at least one radially acting bearing rotatably seating the godet roll casing on the projecting support in at least one bearing plane, the radially acting bearing comprising a plurality of bearing pole windings and a heating device comprising a plurality of heating pole windings on the support, the bearing pole windings and the heating pole windings being arranged within an annular chamber between the support and the godet roll casing, at least one of the heating pole windings being arranged in the bearing plane between the bearing pole windings of the bearing plane;
- wherein one or both of the heating pole windings and the bearing pole windings are arranged on the support at angular offsets from bearing plane to bearing plane;
- and
- wherein one or both of the heating pole windings and the bearing pole windings are in a spiral-shaped arrangement in the longitudinal direction of the support.
A godet roll for guiding, heating and conveying yarn, the godet roll comprising a projecting support, a drivable hollow-cylindrical godet roll casing forming a circumferential yarn guiding surface, at least one radially acting bearing rotatably seating the godet roll casing on the projecting support in at least one bearing plane, the radially acting bearing comprising a plurality of bearing pole windings, and a heating device comprising a plurality of heating pole windings on the support, the bearing pole windings and the heating pole windings being arranged within an annular chamber between the support and the godet roll casing, at least one of the heating pole windings being arranged in the bearing plane between the bearing pole windings of the bearing plane;
- wherein a plurality of sensors are provided outside the annular chamber for determining the position of the godet roll casing and are connected with a control device for controlling the bearing pole windings;
- and
- wherein one of the sensors is assigned to each one of the bearing pole windings, and the bearing pole windings are each individually controllable by means of the control device.
A godet roll for guiding, heating and conveying yarn, the godet roll comprising a projecting support, a drivable hollow-cylindrical godet roll casing forming a circumferential yarn guiding surface, at least one radially acting bearing rotatably seating the godet roll casing on the projecting support in at least one bearing plane, the radially acting bearing comprising a plurality of bearing pole windings, a heating device comprising a plurality of heating pole windings on the support, the bearing pole windings and the heating pole windings being arranged within an annular chamber between the support and the godet roll casing, a plurality of sensors provided outside the annular chamber for determining the position of the godet roll casing, and a control device connected with the sensors for controlling the bearing pole windings, wherein one of the sensors is assigned to each one of the bearing pole windings, and the bearing pole windings are each individually controllable by means of the control device.
Dependencies are inferred from the claim text.