Compact core and ejector assembly
AssigneeBroadway Companies, Inc.
InventorWilliam R. Gaiser
Life of this patent
Estimating the term…
Abstract
A compact core and ejector assembly includes an elongate core terminating in a male mold component and including a cylindrical shoulder which supports the top plate of an associated core support frame. The shoulder includes opposing, longitudinally-extending slots which receive jaw elements, which are pivotally mounted on a reciprocating knock out plate, and therefore guide the jaw elements during the ejection procedure. The top plate, knock out plate and core plate are cut away so that rows of cores may be arranged in a densely packed configuration. In a preferred embodiment, the lateral sides of the top, knock out and core plates have a cut away or sinusoidal shape so that abutting rows fit in an overlapping relationship.
Claims15
A compact core and ejector assembly for use with an injection molding apparatus comprising:
- elongate core means for a mold, said core means terminating in a male mold component and including a shoulder supporting a top plate of an associated support frame and;
- jaw means forming portion of a female mold component for gripping a preform molded on said core means.
A compact core and ejector assembly for use with an injection molding apparatus comprising:
- elongate core means, said core means terminating in a male mold component and including a shoulder for supporting a top plate of an associated support frame;
- jaw means forming a portion of a female mold component and for gripping a preform molded on said core means;
- top plate means for receiving a row of said core means and for supporting said jaw means associated with said row of core means in a closed configuration, said top plate means being shaped to allow a staggered, nested spacing of said core means between adjacent rows of said core means in adjacent said top plate means.
A compact core and ejector assembly comprising:
- core means forming a male component of a preform mold;
- core plate means for supporting a row of a plurality of said core means;
- jaw means, associated with said core means, for forming a portion of a female mold of said preform;
- knockout plate means for supporting said jaw means for pivotal movement relative to said core means and being reciprocatable relative to said core plate means;
- and
- top plate means for supporting said jaw means in a closed configuration about said core means;
- said core plate means and top plate means being shaped to allow overlapping engagement between said core plate means and top plate means of adjacent rows of said core means, whereby a number of core means positionable in a predetermined area is maximized.
Dependencies are inferred from the claim text.