Forming head for forming spirally seamed tube

Abstract

The invention relates to a forming head ( 300 ) which shapes a raw material ( 6 ) to spirally seamed tube ( 2 ), whereby the internal profile of the forming head ( 300 ) is U-shaped, the forming head ( 300 ) has an inlet side and an outlet side and there are on the upper side of the legs ( 306, 308 ) of said U shape slide surfaces ( 312, 314 ) for the raw material ( 6 ) passing through said forming head ( 300 ).

1 . A forming head ( 300 ) for forming spirally seamed tube ( 2 ) from raw material ( 6 ), such that the internal profile of the forming head ( 300 ) is U-shaped, the forming head ( 300 ) has an inlet side and an outlet side and there are on the upper side of the legs ( 306 ,  308 ) of said U-shape slide surfaces ( 312 ,  314 ) for the raw material ( 6 ) passing through said forming head ( 300 ). 
     
     
         2 . A forming head ( 300 ) in accordance with  claim 1 , in which said inlet side ( 302 ) and outlet side ( 303 ) have said U profile. 
     
     
         3 . A forming head ( 300 ) in accordance with  claim 1 , in which said U profile comprises two legs ( 306 ,  308 ) linked together by a web ( 304 ), the width of said web ( 304 ) being greater than the width of the legs ( 306 ,  308 ). 
     
     
         4 . A forming head ( 300 ) in accordance with  claim 1 , in which said U profile comprises two legs ( 306 ,  308 ) linked together by a web ( 304 ), the width of said web ( 304 ) being greater than the height of the legs ( 306 ,  308 ). 
     
     
         5 . A tube manufacturing unit ( 1 ) comprising a forming head ( 300 ) in accordance with  claim 1 . 
     
     
         6 . A system comprising a tube manufacturing unit ( 1 ) in accordance with  claim 5  and a tube cutting unit ( 400 ). 
     
     
         7 . Use of the system in accordance with  claim 6 .