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US 2022/0134619 A1Published application
Injection molding method and apparatus
AssigneeCanplas Industries Ltd.
InventorJames Brian Mantyla
Life of this patent
Estimating the term…
Abstract
A method of injection molding thick plastic parts, comprising molding a transitional part using by a first shot through the first or A-side of the mold, moving the transitional part and mold core away from the mold cavity to create a second shot space, and injecting a second shot which merges with the transitional part to create a final part.
Claims19
A method of injection molding a part using an injection molding machine including a mold having a first side and a second side, the method comprising the steps of:
- positioning the first side and the second side at a first distance from one another to provide a first shot space;
- injecting a first shot of thermoplastic material via a nozzle through the first side into the first shot space;
- allowing the first shot of thermoplastic material to cool and harden into a transitional part;
- moving the second side and the transitional part away from the first side to provide a second shot space comprising space between the transitional part and the first side;
- injecting a second shot of thermoplastic material via the nozzle into the second shot space such that the second shot of thermoplastic material merges with the transitional part;
- and
- allowing the second short of thermoplastic material to cool and harden into a final part.
4 more elements
An injection molding apparatus comprising:
- a computer processor and associated data storage memory, and an injection molding machine having a mold, the mold having a first side and a second side, the injection molding apparatus being configured to:
- position the first side and second side at a first distance from one another to provide a first shot space;
- inject a first shot of thermoplastic material via a nozzle through the first side into the first shot space;
- allow the first shot of thermoplastic material to cool and harden into a transitional part;
- move the second side and the transitional part away from the first side to provide a second shot space comprising space between the transitional part and the first side;
- inject a second shot of thermoplastic material via the nozzle into the second shot space such that the second shot of thermoplastic material merges with the transitional part;
- and
- allow the second short of thermoplastic material to cool and harden into a final part.
5 more elements
Dependencies are inferred from the claim text.