SPREADABLE COILER DRUM

In a winder mandrel (1) with radially movable spreading segments (2) which are arranged on the periphery, a mandrel body (3) and a pulling rod (4), the spreading segments (2) and/or the mandrel body (3) and/or the pulling rod (4) are configured as magnets. A method for operating a winder mandrel of...

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Bibliographische Detailangaben
Hauptverfasser:	VOELKEL, WERNER, KROEMPEL, HARALD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PACKING PERFORMING OPERATIONS PUNCHING METAL STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	In a winder mandrel (1) with radially movable spreading segments (2) which are arranged on the periphery, a mandrel body (3) and a pulling rod (4), the spreading segments (2) and/or the mandrel body (3) and/or the pulling rod (4) are configured as magnets. A method for operating a winder mandrel of this type provides for the spreading segments (2) and/or the mandrel body (3) and/or the pulling rod (4) to be configured as electromagnets, and for the supply voltage of the electromagnets to be switched on during initial winding of the beginning of the strip, lowered during the rolling and raised again when the strip is slipped out.