Transfer feeder for hot-forging presses

In a transfer feeder of a hot-forging press for transferring workpieces in a three-dimensional space having a clamping mechanism for clamping and unclamping a workpiece by a pair of feed bars having a front feed bar and a back feed bar, an advancing mechanism to advance and return feed bars, and a lifting mechanism to raise and lower feed bars, said transfer feeder comprising:

• an inner frame to rockably support said two feed bars in the clamp and unclamp directions, an intermediate frame disposed outside said inner frame and rockably supporting said inner frame in the advance and return directions, and an outer frame to contain said intermediate frame to freely raise and lower the intermediate frame;
• said clamping mechanism comprising two pairs of parallel links installed between said inner frame and said two feed bars, and a first rocking mechanism to rock said pair of parallel links in the clamp and unclamp directions, said first rocking mechanism including a vertically movable member disposed between said two pairs of parallel links and a pair of connecting links, each being pivotally connected at both ends thereof to one end of said movable member and one end of said parallel links, respectively;
• said advancing mechanism comprising a pair of supporting links connecting between said inner frame and said two feed bars, and a second rocking mechanism to rock said inner frame in the advance and return directions;
• said supporting links together with parallel links of said clamping mechanism forming another pair of parallel links moving in the advance and return directions;
• and
• said lifting mechanism comprising of an elevator mechanism to raise and lower the intermediate frame in relation to the outer frame.