| 摘要 |
A method and apparatus is disclosed for the manufacture of J-shaped display hooks with balled ends in a single manufacturing operation, without requiring separate handling of the display hook for the bending and ball-forming operations. A continuous length of wire is advanced incrementally and gripped tightly adjacent its forward end. The wire is severed by means of a cutting and forming bar, which also bends the base portion of the wire at right angles to the main axis of the wire. While the wire remains tightly gripped at its forward end, and continue to be supported adjacent its base by the cutting and forming bar, a ball-forming die is advanced against a projecting forward end of the wire, upsetting the wire end and forming an enlarged end of generally spherical configuration. Immediately thereafter, the wire is released at its forward end, and a rotary plate is actuated, causing a bend-forming element to travel through a generally circular path concentric to a cylindrical forming drum. This operation, which is carried out while the base portion of the wire remains locked in position, forms a generally semicircular bend in the previously balled end of the wire. Both the ball-forming operation and the hookforming bend are carried out in sequence, while the remainder of the hook remains locked in position and oriented in a predetermined manner, so that the various elements of the resulting hook are properly shaped and aligned.
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