2-STAGE EJECTORS Application Examples
2-Stage Ejector Bottom Last – TSBL Application Example 3 1. First ejector stroke moves forward the cavity plate with inner plate. This movement is forcing the edge to move inward. At the end of the stroke the edge clears the inner undercut. 2. Second stroke actuates the ejector pin. This releases the part from the core. This configuration is recommended for parts with non-circular deep undercut details.
2-Stage Ejector Bottom Last – TSBL Application Example 4 1. First ejector stroke lifts the collapsible core off the center pin. Collapse segments retract. After a certain traveling distance, when puller pin is clearing the inner side of segments, the positive collapse sleeve is actuated for positive collapse. 2. Second stroke moves the stripper plate past the end of the core so the part can be ejected from the mold. This configuration is recommended for complex undercuts, collapsible core applications.
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