| 摘要 |
PURPOSE:To simplify the ejection of a press product by providing the punch which awaits outside the press shaft core during the extrusion forming and which is functional so as to be freely insertable into and out of the die hole by locating at the front face of the press stem coinciding with the press shaft core after cutting the extrusion residue. CONSTITUTION:The punch 26 awaiting outside the press shaft core is allowed to coincide with the press shaft core by turning the ejection device 17 of an extrusion product 31 after cutting an extrusion residue 32 by a scepter after retreating a pressing stem 9 after completion of the extrusion forming stage. The product 31 is then extruded from die 15 by pressing the tip 26 of the punch to the die hole part 15 by utilizing the press progressive force. In this case the impact force is absorbed by interposing a spring between the punch 26 and pressing stem 9. The conventional puller of radial method becomes unnecessary by ejecting the extruded product like this and the whole device can be miniaturized as well as the equipment cost can be reduced.
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