(57) Machine for forming metal wire comprising a wire forward-feeding and coiling unit
(2) and a plurality of forming plates (40) arranged downstream of said unit (2), in
which these plates support a respective plurality of forming heads (100), and in which
said wire forward-feeding and coiling unit (2) is provided with a plurality of pairs
of mutually opposing rollers (3,3A,18,19) revolving about respective parallel axles
(11,12,18A,18B,19A,19B) as driven by an assembly of kinematical mechanisms with a
driving wheel associated to each one of said rollers; to each one of said pairs of
rollers there is associated a pair of said driving wheels, the axes of rotation of
which are parallel, and which are engaged via a gear coupling with a driving shaft
that is orthogonal to the plane defined by the parallel axes of rotation of said pairs
of driving wheels.
Said gear coupling is of the inclined-teeth type, preferably with cylindrical helical
gears.
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