| 摘要 |
<p>The present invention relates to a slide core for an under cut extraction apparatus of an injection mold. The slide core comprises: the under cut extraction device including an eject pin, which is installed on an inner circumferential side of a lower disk to slide and ejects an injection-molded product, a pushing plate which moves the eject pin up and down, and a guide shaft, which is arranged on both sides of the pushing plate to support operation of the pushing plate; a driving shaft which reciprocates when the pushing plate is moved up and down; a core main body part which is joined on the top of the driving shaft and extracts the undercut part of the injection-molded product; a core holder that is formed in the shape of a circle or a polygon having an open end portion; and a driving force providing means which is joined with a lower end portion of the driving shaft and provides predetermined elastic force in order to operate the driving shaft.</p> |
