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US 2018/0001529 A1Published application
Injection molding with targeted heating of mold cavities in a non-molding position
AssigneeImflux Inc.
InventorsGene Michael Altonen, Chow-Chi Huang, Jes Tougaard Gram
Life of this patent
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Abstract
Injection molding utilizing targeted heating of mold cavities when in a non-molding position, thereby facilitating enhancement of the appearance and strength of injection molding parts in a manner that does not significantly increase cycle times or energy consumption.
Claims20
A method of injection molding, comprising:
- injecting a molten thermoplastic material into a mold cavity defined by a mold of an injection molding system, the injecting being performed when the mold cavity is in a first molding position;
- forming a molded article by reducing a mold temperature of the molten thermoplastic material within the mold cavity;
- ejecting the molded article from the mold cavity;
- moving the mold cavity from the first molding position to a non-molding position;
- heating at least a portion of a wall of the mold cavity when the mold cavity is in the non-molding position;
- moving the mold cavity from the non-molding position to one of the first molding position or a second molding position different from the first molding position;
- and
- when the mold is in the first or second molding position, injecting the molten thermoplastic material into the mold cavity having the at least partially heated wall.
5 more elements
A method of injection molding, comprising:
- injecting a molten thermoplastic material into a first mold cavity defined by a mold of an injection molding system;
- forming a first molded article by reducing a mold temperature of the molten thermoplastic material within the first mold cavity;
- ejecting the molded article from the first mold cavity;
- heating at least a portion of a wall of the first mold cavity;
- and
- performing, during the heating, one or more acts from a group of injection molding acts consisting of:
- injecting the molten thermoplastic material into a second mold cavity defined by the mold of the injection molding system;
- forming a second molded article by reducing a mold temperature of the thermoplastic material within the second mold cavity;
- and
- ejecting the second molded article from the second mold cavity.
7 more elements
A method of injection molding, comprising:
- heating at least a portion of a wall of a mold cavity defined by a mold of an injection molding system when the mold cavity is in a non-molding position;
- moving the mold cavity from the non-molding position to a molding position;
- injecting a molten thermoplastic material into the mold cavity having the at least partially heated wall, the injecting being performed when the mold cavity is in the molding position;
- forming a molded article by reducing a mold temperature of the molten thermoplastic material within the mold cavity;
- and
- ejecting the molded article from the mold cavity.
3 more elements
Dependencies are inferred from the claim text.