Patent ID: 7343766

Claim:
A spring manufacturing apparatus comprising: a wire path through which a wire passes to enter a wire processing space for forming the wire into a spring by using a bending dice; at least a pair of wire feeding rollers that pressingly holds the wire and feeds the wire to the wire processing space; and a first, a second and a third bending dice mounting slider disposed so as to move into and out of the wire processing space; in which the first bending dice mounting slider is located at a position opposing an outlet of the wire path, and the second and the third bending dice mounting sliders are symmetrically located with respect to a center line along the moving direction of the first bending dice mounting slider; further comprising: an arm that mechanically connects the first and the second bending dice mounting slider, or the first and the third bending dice mounting slider selectively; a first driving source that drives the second bending dice mounting slider; and a second driving source that drives the third bending dice mounting slider; wherein one of the first and the second driving source, selected according to which bending dice mounting sliders are connected by the arm, causes the first bending dice mounting slider to move in an interlocked manner so as to determine a winding direction of the wire for manufacturing a spring.