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US 9,751,242 B2Granted
Method of forming molded parts
AssigneeSnyder Industries, Inc.
InventorRian Suiter
Life of this patent
Estimating the term…
Abstract
A method of forming a molded part in a mold having an ejector assembly. The ejector assembly includes an ejector arm and mounting structure. The ejector arm has a first end with a tongue that extends partially into a cavity of the mold and an opposite second end with a handle that extends outwardly from the mold cavity. The mounting structure pivotally mounts the ejector arm to the top portion of the mold so that the ejector arm may be pivoted between an operating position and an ejection position.
Claims13
A method of forming a part comprising:
- attaching an ejector assembly to a mold having a bottom mold portion and a top mold portion that cooperatively define a mold cavity, the ejector assembly including—
- an ejector arm having a first end and an opposite second end;
- and
- mounting structure for pivotally mounting the ejector arm to the mold;
- depositing plastic resin material into the bottom mold;
- shifting the ejector arm to an operating position in which the first end of the ejector arm extends in to the mold cavity;
- covering the bottom mold with the top mold;
- rotating the mold about at least one axis;
- separating the top mold from the bottom mold;
- and
- removing the part from either the top mold or bottom mold by pivoting the ejector arm relative to the mold to an ejection position such that the first end of the ejector arm urges the molded part from the mold.
8 more elements
A method of forming a part comprising:
- attaching a number of ejector assemblies to a mold having a bottom mold portion and a top mold portion that cooperatively define a mold cavity, each ejector assembly including—
- an ejector arm having a first end with a tongue and an opposite second end with a handle:
- and
- mounting structure for pivotally mounting the ejector arm to the top mold portion;
- depositing plastic resin material into the bottom mold;
- shifting the ejector arm to an operating position in which the tongue of the first end of the ejector arm extends in to the mold cavity;
- covering the bottom mold with the top mold;
- rotating the mold about at least one axis;
- heating the mold;
- cooling the mold;
- separating the top mold from the bottom mold;
- removing the part from the top mold by pivoting the ejector arms relative to the mold to ejection positions such that the tongues of the ejector arms urge the molded part from the mold;
- and
- covering a harborage cavity formed in the part by the ejector arms.
11 more elements
A method of forming a part comprising:
- attaching a number of ejector assemblies to a mold having a bottom mold portion and a top mold portion that cooperatively define a mold cavity, each ejector assembly including—
- an ejector arm having a first end with a tongue and an opposite second end with a handle;
- and
- mounting structure for pivotally mounting the ejector arm to the top mold portion;
- depositing plastic resin material into the bottom mold;
- shifting the ejector arm to an operating position in which the tongue on the first end of the ejector arm extends in to the mold cavity;
- covering the bottom mold with the top mold;
- rotating the mold about several axes while simultaneously heating the mold;
- cooling the mold;
- separating the top mold from the bottom mold;
- removing the part from the top mold by pivoting the ejector arms relative to the mold to ejection positions such that the tongues of the ejector arms urge the molded part from the mold;
- and
- covering a harborage cavity formed in the part by the ejector arm.
10 more elements
Dependencies are inferred from the claim text.