Molding apparatus with combined core plunger/ejector and methods therefor
AssigneeArris Composites Inc.
InventorsSam Pirahanchi, Erick Davidson
Life of this patent
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Abstract
A molding apparatus for injection molding or compression molding includes an “A” portion of a mold, a “B” portion of the mold, and at least one core plunger/ejector. The core plunger/ejector provides dual functionality, wherein it participates in molding operations by consolidating a feed material in the mold cavity, and also is responsible for separating the part from various mold surfaces and ejecting it from the mold.
Claims15
A molding apparatus for molding a part, comprising:
- an A-portion of the molding apparatus;
- a B-portion of the molding apparatus, at least one of the A-portion or the B-portion is movable to open and close the molding apparatus;
- and
- a core plunger/ejector, wherein the core plunger/ejector is physically independent of the A-portion and the B-portion, and is movable to:
- (a) form a sealed cavity in which a charge is received, wherein a surface of core plunger/ejector, a surface of the A-portion, and a surface of the B-portion form the sealed cavity;
- and
- (b) apply pressure to the charge in the cavity;
- and wherein
- the core plunger/ejector is movable in a first direction to fully release the part from the core plunger/ejector, and movable in a second direction that is opposite to the first direction to fully release the part from the B-portion of the molding apparatus.
A molding apparatus for molding a part, comprising:
- an upper, A-portion of the molding apparatus;
- a lower, B-portion of the molding apparatus, at least one of the A-portion or the B-portion movable to open and close the molding apparatus;
- and
- a core plunger/ejector, wherein the core plunger/ejector is not mechanically coupled to either the A-portion and the B-portion, and wherein the core plunger/ejector is movable to:
- (a) apply pressure to a charge in a mold cavity, wherein the applied pressure conforms the charge to a shape of the mold cavity;
- and
- (b) fully release the part from the core plunger/ejector and from the B-portion.
A molding apparatus for molding a part, comprising:
- an upper, A-portion of the molding apparatus;
- a lower, B-portion of the molding apparatus, at least one of the A-portion or the B-portion movable to open and close the molding apparatus;
- and
- a core plunger/ejector, wherein the core plunger/ejector is a unitary/one-piece structure that is not mechanically coupled to either of the A-portion and the B-portion, and wherein the core plunger/ejector is movable to:
- (a) apply pressure to a charge in a mold cavity, wherein the applied pressure conforms the charge to a shape of the mold cavity, and
- (b) wherein the core plunger/ejector is movable to release the part from the B-portion and the core plunger/ejector.
A molding apparatus for molding a part, comprising:
- an upper, A-portion of the molding apparatus;
- a lower, B-portion of the molding apparatus, at least one of the A-portion or the B-portion movable to open and close the molding apparatus;
- and
- a core plunger/ejector, wherein the core plunger/ejector is a unitary/one-piece structure that is movable independently of the A-portion and B-portion to:
- (a) fully release the part from the core plunger/ejector, and
- (b) fully release the part from the B-portion.
Dependencies are inferred from the claim text.