Stand change carriage comprising a lifting mechanism

Abstract

The present application relates to a stand change carriage (10) for simultaneously receiving and transporting a plurality of stands (12) of a rolling mill (14) for rolling metal rods, wires or pipes, the stand change carriage (10) comprising a plurality of stand places (16), one of the stands (12) being receivable individually in each of the stand places (16), and the stand change carriage (10) comprising a lifting mechanism (18) which is designed to raise and lower each of the stands (12) individually.

1 . A stand change carriage for simultaneously receiving and transporting a plurality of stands of a rolling mill for rolling metal rods, wires, or pipes, the stand change carriage comprising:
 a plurality of stand places, wherein one of the stands is receivable individually in each of the stand places, and   a lifting mechanism configured to raise and lower each of the stands individually.   
     
     
         2 . The stand change carriage according to  claim 1 , further comprising a plurality of wheels for transporting the stands on rails or along a rail-less substrate. 
     
     
         3 . The stand change carriage according to  claim 1 , wherein the lifting mechanism comprises a spindle mechanism configured to raise or to lower the stands. 
     
     
         4 . The stand change carriage according to  claim 1 , wherein the lifting mechanism comprises at least four lifting pins configured to grasp the stands, wherein two lifting pins are arranged on each of the stand places. 
     
     
         5 . The stand change carriage according to  claim 1 ,
 wherein the stand change carriage comprises an energy source in order to supply the lifting mechanism with energy.   
     
     
         6 . The stand change carriage according to  claim 1 , further comprising at least four stand places,
 wherein the lifting mechanism is configured to raise and lower the at least four stands individually.   
     
     
         7 . The stand change carriage according to  claim 1 , wherein a protective barrier is arranged between pairs of the stand places, such that the protective barrier covers an intermediate space between each pair of the stand places. 
     
     
         8 . The stand change carriage according to  claim 7 ,
 wherein the protective barrier is provided on both sides facing the stand places with an inflatable sealing lip.   
     
     
         9 . The stand change carriage according to  claim 1 ,
 wherein the stand places are configured to receive a stand having a hexagonal outside shape when viewed along a rolling direction of the stand.