Compact reversible universal mill for producing medium-large sections

Abstract

A compact reversible universal mill for producing medium-large sections has a universal reducing stand, a two-high stand and a universal stand to create a reversible intermediate unit across a roller way carrying a bar being worked. Provided immediately downstream of the reversible intermediate unit is a finishing stand being the final additional stand and extending also across the shared roller way or respectively moveable perpendicularly in relation to the roller way. The finishing stand is kept open or respectively closed during intermediate passes of a production cycle and being closed or respectively used on the roller way only before the bar completes the final pass of the production cycle.

1 - 7 . (canceled) 
     
     
         8 . A compact reversible universal mill for producing medium-large sections, the compact reversible universal mill comprising:
 a roller way for carrying a bar to be worked;   a reversible intermediate unit containing at least one first universal reducing stand, a two-high stand and a second reducing universal stand, said reversible intermediate unit disposed across said roller way carrying the bar to be worked; and   a finishing universal stand disposed immediately downstream of said reversible intermediate unit, said finishing universal stand being a final additional stand also disposed across said roller way, said finishing universal stand being kept open during intermediate passes of a production cycle and closed only before the bar completes a final pass of the production cycle.   
     
     
         9 . A compact reversible universal mill for producing medium-large sections, the compact reversible universal mill comprising:
 a roller way for carrying a bar to be worked;   a reversible intermediate unit containing at least one first universal reducing stand, a two-high stand and a second reducing universal stand, said reversible intermediate unit disposed across said roller way carrying the bar to be worked; and   a finishing universal stand disposed immediately downstream of said reversible intermediate unit and being a final additional stand moveable perpendicularly in relation to said roller way, said finishing universal stand being kept closed away from said roller way during intermediate passes of a production cycle and moved across said roller way only before the bar completes a final pass of the production cycle.   
     
     
         10 . A method for producing medium-large sections in a reversible universal mill, the reversible universal mill having a reversible intermediate unit with at least one first universal reducing stand, a two-high stand and a second reducing universal stand all disposed across a roller way for carrying a bar being worked, the reversible universal mill having immediately downstream of the reversible intermediate unit, a finishing universal stand as a final additional stand also across the shared roller way, which comprises the steps of:
 keeping the finishing universal stand open during intermediate passes of a production cycle and a subsequent phase in which the finishing universal stand is closed only before the bar completes a final pass of the production cycle.   
     
     
         11 . A method for producing medium-large sections in a reversible universal mill, the reversible universal mill containing a reversible intermediate unit having at least one universal reducing stand, a two-high stand and a second reducing universal stand all disposed cross a roller way for carrying a bar being worked, the reversible universal mill having immediately downstream of the reversible intermediate unit a finishing universal stand as a final additional stand moveable perpendicularly in relation to the roller way, which comprises the steps of:
 during a given phase, keeping the finishing universal stand closed away from the roller way during intermediate passes of a production cycle and a subsequent final phase in which the finishing universal stand is moved across of said roller way only before the bar completes a final pass of the production cycle.   
     
     
         12 . A plant for producing medium-large sections, the plant comprising:
 a furnace unit having related accessories;   a roughing unit disposed downstream of said furnace unit;   a cooling bed;   cutting stations;   final stations;   a compact reversible universal mill disposed between said roughing unit and said cooling bed, said compact reversible universal mill containing:
 a roller way for carrying a bar to be worked; 
 a reversible intermediate unit containing at least one first universal reducing stand, a two-high stand and a second reducing universal stand, said reversible intermediate unit disposed across said roller way carrying the bar to be worked; and 
 a finishing universal stand disposed immediately downstream of said reversible intermediate unit, said finishing universal stand being a final additional stand also disposed across said roller way, said finishing universal stand being kept open during intermediate passes of a production cycle and closed only before the bar completes a final pass of the production cycle. 
   
     
     
         13 . The plant according to  claim 12 , wherein said cooling bed is disposed immediately downstream of said compact reversible universal mill. 
     
     
         14 . The plant according to  claim 12 , wherein said cooling bed is disposed separate from and downstream of said compact reversible universal mill.