INJECTION MOLD HAVING WORKPIECE TRIMMING EDGE
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United States of America Patent
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N/A
Issued Date -
Jul 1, 2010
app pub date -
Dec 3, 2009
filing date -
Dec 30, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An exemplary injection mold includes a stationary mold, a movable mold, and an ejection device. The stationary mold includes a stationary core received therein. The stationary core includes a stationary molding surface. The movable mold includes a movable core corresponding to the stationary core. The movable core includes a movable molding surface and defines an injection channel. When the injection mold is closed, the stationary molding surface and the movable molding surface cooperatively define a molding cavity of a configuration corresponding to that of an article to be molded, with the injection channel communicates with the molding cavity. The ejection device includes a knockout pin passing through the movable mold and terminating at the molding cavity. The knockout pin includes a trimming edge having a sharp tip protruding into a top end of the injection channel.
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