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US 11,691,322 B2Granted
Method to chase weld lines by timing and positioning of gates
AssigneeFord Motor Company
InventorsJunko Pauken, Haoliang Michael Sun
Life of this patent
Estimating the term…
Abstract
A mold apparatus for forming a molded part includes a mold body, a mold cavity formed in said mold body, a plurality of valve gates associated with said mold body, and a controller in communication with said plurality of valve gates. The controller is programmed to time opening of each valve gate based on a selected flow rate required to eliminate weld lines in the product.
Claims19
A mold apparatus for forming a molded part comprising:
- a mold body;
- a mold cavity formed in said mold body;
- a plurality of valve gates associated with said mold body;
- and
- a controller in communication with said plurality of valve gates, said controller being configured to control opening of the plurality of valve gates to maintain a predetermined injection molding pressure in the mold cavity and being programmed to time opening of each valve gate based on a selected flow rate required to eliminate weld lines in the product.
2 more elements
A mold apparatus comprising:
- a mold body defining a mold cavity;
- a plurality of valve gates associated with said mold body;
- and
- a controller in communication with the plurality of valve gates and configured to regulate timing of opening and closing of the plurality of valve gates to maintain a predetermined injection molding pressure in the mold cavity.
1 more element
A mold apparatus comprising:
- a mold body defining a mold cavity;
- a plurality of valve gates associated with the mold body;
- and
- a controller in communication with the plurality of valve gates,
- wherein the controller is configured to time opening of each valve gate based on a predetermined flow rate and a material injected into the mold cavity to balance a flow length ratio such that a predetermined injection molding pressure is maintained in the mold cavity to eliminate weld lines in a molded part.
2 more elements
Dependencies are inferred from the claim text.