Collapsing core part retainer sleeve
AssigneeProgressive Components International Corporation
InventorsAlan Patrick Hickok, David Charles Helenius
Life of this patent
Estimating the term…
Abstract
An injection molding tool having a collapsible core which is movably mounted with respect to a mold plate. The mold plate is movably mounted with respect to a stripper plate that can be used to eject or remove the molded part from the injection molding tool. A retainer is fixedly positioned with respect to the mold plate so that it contacts at least a portion of a molded part when in a mold position. The retainer can be a sleeve with a through opening within or through which the collapsible core is mounted.
Claims25
In an injection molding tool having a collapsible core assembly movably mounted with respect to a mold plate, and the mold plate movably mounted with respect to a stripper plate that removes a molded part, the improvement comprising:
- a retainer fixedly positioned with respect to the mold plate, the retainer having a base with a sleeve extending toward the molded part, an outer ring and a center ring positioned between the base and the outer ring, and in a mold position a contact surface of the sleeve of the retainer contacting at least a portion of the molded part.
In an injection molding tool having a collapsible core assembly, the improvement comprising:
- a retainer mounted with respect to a mold plate, the retainer having a base with a sleeve extending toward the molded part, an outer ring and a center ring positioned between the base and the outer ring, in a mold position the retainer having a retention part contacting at least a portion of the molded part, and in the mold position the base fixedly held between the mold plate and a stripper plate.
An injection molding tool comprising:
- a collapsible core assembly movably mounted with respect to a mold plate, the mold plate movably mounted with respect to a stripper plate, a retainer fixed with respect to the mold plate, the retainer having a base with a sleeve extending toward the molded part, an outer ring and a center ring positioned between the base and the outer ring, and in a mold position the retainer forming at least a portion of a cavity housing a molded part.
Dependencies are inferred from the claim text.