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US 11,052,576 B2Granted
Hydraulic advancement/postponement assembly
AssigneeNypromold Inc.
InventorTuan H. Nguyen
Life of this patent
Estimating the term…
Abstract
A hydraulic advancement/postponement assembly is operably coupled to a first ejector plate and to a second ejector plate. The hydraulic advancement/postponement assembly includes a first hydraulic cylinder having a first housing defining a first volume and a first piston, the first housing connected to the first ejector plate and the first piston connected to a fixed element. The hydraulic advancement/postponement assembly includes a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second volume and a second piston, the second housing connected to the first ejector plate and a second piston connected to the second ejector plate.
Claims22
A hydraulic advancement/postponement assembly, comprising:
- a first ejector plate;
- a second ejector plate opposing the first ejector plate;
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to a fixed element;
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the second ejector plate;
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being less than the first internal diameter and the second length being greater than the first length;
- and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate, the second rate being greater than the first rate.
4 more elements
A hydraulic advancement/postponement assembly, comprising:
- a first ejector plate;
- a second ejector plate opposing the first ejector plate;
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to a fixed element;
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the second ejector plate;
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being greater than the first internal diameter and the second length being less than the first length;
- and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate, the second rate being less than the first rate.
4 more elements
An injection mold system, comprising:
- hydraulic advancement/postponement assembly, comprising:
- a first ejector plate,
- a second ejector plate opposing the first ejector plate,
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to a fixed element,
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the second ejector plate,
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being less than the first internal diameter and the second length being greater than the first length, and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate, the second rate being greater than the first rate;
- a driver element connected to the first ejector plate;
- and
- a molding plate connected to the second ejector plate.
7 more elements
An injection mold system, comprising:
- hydraulic advancement/postponement assembly, comprising:
- a first ejector plate,
- a second ejector plate opposing the first ejector plate,
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to a fixed element,
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the second ejector plate,
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being greater than the first internal diameter and the second length being less than the first length;
- and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate, the second rate being less than the first rate;
- a driver element connected to the first ejector plate;
- and
- a molding plate connected to the second ejector plate.
8 more elements
A hydraulic advancement/postponement assembly, comprising:
- a first ejector plate;
- a second ejector plate opposing the first ejector plate;
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to one of the second ejector plate and a fixed element;
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the other of the second ejector plate and the fixed element;
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being less than the first internal diameter and the second length being greater than the first length;
- and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate.
4 more elements
An injection mold system, comprising:
- a hydraulic advancement/postponement assembly, comprising:
- a first ejector plate,
- a second ejector plate opposing the first ejector plate,
- a first hydraulic cylinder having a first housing defining a first housing volume and a first piston at least partially disposed within the first housing, the first housing connected to the first ejector plate and the first piston connected to one of the second ejector plate and a fixed element,
- a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second housing volume and a second piston at least partially disposed within the second housing, the second housing connected to the first ejector plate and the second piston connected to the other of the second ejector plate and the fixed element,
- wherein the first housing volume is substantially equal to the second housing volume, the first housing defining a first internal diameter and a first length, and the second housing defining a second internal diameter and a second length, the second internal diameter being less than the first internal diameter and the second length being greater than the first length, and
- wherein translation of the first ejector plate and the first housing between a first position and a second position at a first rate is configured to position the second piston of the second hydraulic cylinder and the second ejector plate between the first position and the second position at a second rate;
- a driver element connected to the first ejector plate;
- and
- a molding plate connected to the second ejector plate.
7 more elements
Dependencies are inferred from the claim text.