Forming unit for a profiling machine line

Abstract

A forming unit for a profiling machine line, comprising: a plurality of lower rollers ( 11,12,13 ) shaped with outer surfaces that envelop, on at least a transversal section plane, a lower curve (P 1 ); a plurality of upper rollers ( 21,22,23,24,25 ) profiled with outer surfaces that envelop, on the transversal section plane, an upper curve (P 2 ) substantially parallel to the lower curve (P 1 ).

1 . A forming unit for a profiling line, characterized by comprising: a plurality of lower rollers ( 11 , 12 , 13 ) shaped with outer surfaces that envelop, on at least one transversal section plane, a lower curve (P 1 ); a plurality of upper rollers ( 21 , 22 , 23 , 24 , 25 ) shaped with outer surfaces that envelop, on the transversal section plane, an upper curve (P 2 ) substantially parallel to the lower curve (P 1 ). 
     
     
         2 . A forming unit according to  claim 1 , in which the lower rollers ( 11 , 12 , 13 ) exhibit axes of rotation lying on the transversal section plane. 
     
     
         3 . A forming unit according to  claim 1 , wherein at least one of the upper rollers ( 21 , 22 , 23 , 24 , 25 ) exhibits its axis of rotation lying on the transversal section plane. 
     
     
         4 . A forming unit according to  claim 1 , wherein the upper rollers ( 21 , 22 , 23 , 24 , 25 ) are associated with a support ( 20 ), which is movable along a vertical direction. 
     
     
         5 . A forming unit according to  claim 1 , in which the lower rollers ( 11 , 12 , 13 ) include a central roller ( 11 ) that exhibits a concave outer surface. 
     
     
         6 . A forming unit according to  claim 5 , in which the lower rollers comprise one more lateral rollers ( 12 , 13 ) each of which is provided with a concave outer surface that, on the transversal section plane, is matched to the outer surface of the central roller ( 11 ). 
     
     
         7 . A forming unit according to  claim 5 , in which the central roller ( 11 ) is motorized. 
     
     
         8 . A forming unit according to  claim 1 , wherein the upper rollers comprise a central roller ( 21 ) that exhibits a convex outer surface. 
     
     
         9 . A forming unit according to  claim 8 , comprising one or more lateral rollers ( 22 , 23 , 24 , 25 ) which exhibit a convex outer surface. 
     
     
         10 . A profiling machine line for the realization of profiled elements, comprising a plurality of working units ( 10 , 2   a ,  2   b ,  2   c ,  3   a ,  3   b ,  3   c , . . . ) each of which is provided with two or more rollers which are shaped and arranged such as to form on the profiled elements (P) a certain curvature about its longitudinal axis, characterized in that it comprises at least one working unit ( 10 , 2   a ,  2   b ,  2   c ,  3   a ,  3   b ,  3   c  . . . ) the position of which is vertically adjustable independently of the other working units. 
     
     
         11 . A profiling machine line for the realization of profiled elements according to  claim 10 , comprising an intermediate section, which is rotatable about a horizontal axis (X) with respect to a first previous section, and a third section following the intermediate section, the position of which is adjustable on a vertical plane. 
     
     
         12 . A profiling machine line for the realization of sections, comprising:
 a forming section ( 1 ), comprising a plurality of forming units ( 10 ) according to  claim 1 , aligned along a first longitudinal direction (Y 1 );   a finishing section ( 2 ), consecutive to the forming section ( 1 ), comprising a plurality of finishing units ( 2   a ,  2   b ,  2   c , . . . ) aligned along a second longitudinal direction (Y 2 );   a guide section ( 3 ), consecutive to the finishing section ( 2 ), comprising a plurality of guide units ( 3   a ,  3   b ,  3   c , . . . ), mutually aligned, and welding means ( 4 ), prepared for performing a parallel welding to the longitudinal direction (Y);   characterized in that the finishing section ( 2 ) is rotatable about a horizontal axis (X) relative to the forming section ( 1 ), so as to adjust the inclination of the second longitudinal direction (Y 2 ) with respect to the first longitudinal direction (Y 1 ).   
     
     
         13 . A profiling machine line according to  claim 12 , in which the finishing section ( 2 ) comprises a base (B), to which the finishing units ( 2   a ,  2   b ,  2   c , . . . ) are constrained, which base (B) is hinged, relative to the horizontal axis (X), to an end portion of the forming section ( 1 ). 
     
     
         14 . A profiling machine line according to  claim 12 , in which the guide units ( 3   a ,  3   b ,  3   c , . . . ) are vertically movable independently of each other. 
     
     
         15 . A profiling machine line according to  claim 12 , comprising guide means ( 5 ), which is so structured as to push the edges (E 1 , E 2 ) of the profile (P), one towards the other. 
     
     
         16 . A profiling machine line according to  claim 15 , wherein the guide means ( 5 ) comprises a pair of opposing shoes ( 51 , 52 ), being so positioned as to come into contact with two zones of the article (P).