US 6,615,462 B2Granted

Magnetically supported circular spreader for treating tubular textile goods

AssigneeLindauer Dornier Gesellschaft mbH

InventorWerner Strudel

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Abstract

A circular spreader for spreading tubular textile goods includes a spreader arrangement with an inlet mandrel and an outlet mandrel at opposite ends thereof inside the tubular goods, an inlet support structure arranged around the inlet mandrel outside of the tubular goods with an inlet guide gap therebetween, and an outlet support structure arranged around the outlet mandrel outside of the tubular goods with an outlet guide gap therebetween. The mandrels and the support structures are magnetic, to magnetically repel each other across the guide gaps. The components may be permanent magnets or electromagnets, or have separate discrete magnets provided thereon. The spreader arrangement is supported by magnetic levitation relative to the support structures, without direct contact therebetween. The tubular goods pass through the guide gaps with low friction, no pressing force exerted thereon, and no impairment of the structure or quality thereof.

Claims20

Dependent claims

A circular spreader apparatus for spreading textile tubular goods, comprising:

a spreader arrangement including radially outwardly directed spreading guide elements adapted to guide and support the tubular goods in a tubular expanded condition thereon;
a magnetic inlet mandrel connected to an inlet end of said spreader arrangement and adapted to have the tubular goods transported thereover;
a magnetic outlet mandrel connected to an outlet end of said spreader arrangement opposite said inlet end and adapted to have the tubular goods transported thereover;
a magnetic inlet support structure arranged radially outwardly around at least a portion of a perimeter of said inlet mandrel, forming an inlet guide gap adapted to have the tubular goods transported therethrough between said inlet mandrel and said inlet support structure;
and
a magnetic outlet support structure arranged radially outwardly around at least a portion of a perimeter of said outlet mandrel, forming an outlet guide gap adapted to have the tubular goods transported therethrough between said outlet mandrel and said outlet support structure;
wherein said magnetic inlet mandrel and said magnetic inlet support structure respectively have such a magnetic polarization so as to magnetically repel each other across said inlet guide gap;
and
wherein said magnetic outlet mandrel and said magnetic outlet support structure respectively have such a magnetic polarization so as to magnetically repel each other across said outlet guide gap.

6 more elements

Dependencies are inferred from the claim text.