| 摘要 |
A wire spring forming apparatus which can twist a direction of the wire material (W) so as to coincide with a forming direction of the forming tools (T) with a small moment of inertia by positioning a center point of gravity of the pressure feed rollers (1) and a power transmitting means or transmitting a drive force to the pressure feed rollers (1) near the axis of revolution, and has no deflection load in application of pressure to the pressure feed rollers (1), structured such that one pressure feed roller (1) and a power transmitting means for the pressure feed roller (1) are mounted to a main portion main frame (28) of a revolving means rotatably supported to a main body frame (M1), and another pressure feed roller (1) is mounted to supporting arms (17L, 17R) swingably attached to a fulcrum shaft rotatably supported to the main frame (M) in perpendicular to a pressure feeding direction of a wire (W), in the state that gears (2a) for driving the pressure feed rollers (1) assembled with the respective pressure feed rollers (1) are engaged together, and the pressure feed rollers (1) are positioned at the substantially middle of a spindle (3) having both ends supported or pivoted to the main frame (M) and the supporting arms (17L,17R), and a point of application of pressure with respect to the pressure feed roller (1) in the side of the supporting arm (17R) is positioned immediately above the pressure feed rollers (1). <IMAGE> |
