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US 2022/0080640 A1Published application
System for micro-molding articles
AssigneeWestfall Acquisition III, Inc.
InventorHarald Schmidt
Life of this patent
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Abstract
A system is disclosed for micro-molding articles. The system melts and pre-pressurizes thermoplastic material to a first level, within a plasticizing barrel. The melt pressure of the thermoplastic material is manipulated to a second level, within a hot runner. The melt pressure of the thermoplastic material is manipulated to an ultra-cavity packing pressure within a valve gate nozzle.
Claims9
A system for injection molding articles comprising:
- a micro-molding machine including a controller;
- the controller having a processor executing computer readable instructions to:
- melt and pre-pressurize thermoplastic material to a first level, within a plasticizing barrel of the micro-molding machine;
- manipulate melt pressure of the thermoplastic material to a second level, within a hot runner of a manifold of the micro-molding machine, wherein the pressure within the manifold is held constant throughout the cycle time;
- manipulate the melt pressure of the thermoplastic material to an ultra-cavity packing pressure within a micro cavity;
- and
- increase temperature of the thermoplastic material in a cascading manner as the thermoplastic material travels from the plasticizing barrel to exit from a valve gate nozzle to enter the mold cavity.
4 more elements
Dependencies are inferred from the claim text.