| 摘要 |
An air-operated knockout device for plastic molds for assisting ejection of molded plastic parts from a mold. The knockout device has a body in which is installed a knockout pin. The knockout pin is normally retained within the body, but can be axially shifted to an extended position to physically eject a molded part from a mold. The knockout pin also includes an air bypass to assist the knockout pin in the ejection of the molded part.
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