Strip coiler for starting and finishing to coil metal strips

Abstract

Disclosed is a strip coiler for coiling a metal strip ( 20 ), comprising a coiling mandrel ( 21 ), pressing rollers ( 26 ) associated with the coiling mandrel ( 21 ), and adjustable deflection shells ( 28 ) for pressing the leading edge ( 24 ) of the metal strip ( 20 ) against the coiling mandrel ( 21 ). The disclosed strip coiler is characterized in that at least one of the deflection shells ( 28 ) has a tip ( 22 ) which is adjustable relative to the deflection shell ( 28 ).

1 - 13 . (canceled) 
     
     
         14 . A strip coiler for coiling a metal strip, comprising: a coiling mandrel; and at least one deflecting shell with a tip for deflecting the metal strip around the coiling mandrel, wherein the tip is mounted in the deflecting shell and is adjustable relative to the deflecting shell. 
     
     
         15 . The strip coiler according to  claim 14 , wherein the deflecting shell and/or the tip have, at sides facing the coiling mandrel, a curvature substantially common with a curvature of the coiling mandrel and the metal strip coiled thereon. 
     
     
         16 . The strip coiler according to  claim 14 , wherein the tip is adjustable out of a contact pressure position from the coiling mandrel by a rotary movement and/or a linear movement relative to the deflecting shell. 
     
     
         17 . The strip coiler according to  claim 14 , wherein the tip is moveable hydraulically, mechanically or electromechanically. 
     
     
         18 . The strip coiler according to  claim 14 , wherein the deflecting shell has a front end with a deflecting shell head, the tip being fixedly mounted at the deflecting shell head and being pivotable relative to the deflecting shell by turning of the deflecting shell head. 
     
     
         19 . The strip coiler according to  claim 18 , wherein the tip is integral with the deflecting shell head. 
     
     
         20 . The strip coiler according to  claim 14 , wherein the tip is arranged so that a distance of the tip relative to the coiling mandrel in a contact pressure position is adjustable depending on a thickness of the metal strip to be coiled. 
     
     
         21 . The strip coiler according to  claim 20 , further comprising a device for adjusting the deflecting shell heart relative to the deflecting shell, wherein the device includes a position-measuring device. 
     
     
         22 . The strip coiler according to  claim 21 , wherein the adjusting device is a hydraulic cylinder. 
     
     
         23 . The strip coiler according to  claim 21 , wherein the position-measuring device comprises a computing unit for computing the distance to be adjusted. 
     
     
         24 . The strip coiler according to  claim 20 , further comprising two stops that define a range, wherein the tip is moveable in the range between the two stops. 
     
     
         25 . The strip coiler according to  claim 24 , wherein at least one of the stops is adjustable. 
     
     
         26 . The strip coiler according to  claim 18 , wherein the deflecting shell head can be pivoted or pulled away from the coiling mandrel when a predetermined force acting on the tip is exceeded. 
     
     
         27 . The strip coiler according to  claim 14 , further comprising contact pressure rollers for pressing the metal strip against the coiling mandrel. 
     
     
         28 . The strip coiler according to  claim 27 , wherein the contact pressure rollers press the front edge of the metal strip against the coiling mandrel. 
     
     
         29 . A method for operating a strip coiler for coiling a metal strip, the strip coiler including a coiling mandrel and at least one deflecting shell with a tip for deflecting the metal strip around the coiling mandrel, wherein the tip is mounted in the deflecting shell and is adjustable relative to the deflecting shell, the method comprising the steps of adjusting the tip mounted in the deflecting shell relative to the deflecting shell and the coiling mandrel depending on a coiling situation of the metal strip.