Valve gate assembly
AssigneePlastic Engineering & Technical Services, Inc.
InventorsPatrick A. Tooman, Bruce Casey
Life of this patent
Estimating the term…
Abstract
A valve gate assembly for regulating a flow of molten material into a mold. The valve gate assembly includes a movable valve that can be positioned between a fully closed position and a fully open position. The valve gate assembly further includes an actuating system operatively cooperating with the valve to move the valve and infinitely position the valve between the fully closed position and the fully open position.
Claims32
A valve gate assembly for an injection molding machine, comprising:
- a valve operably associated with a valve gate of an injection molding manifold;
- an actuator assembly operably coupled to said valve;
- and
- an axially movable output shaft in substantial axial alignment with said valve, said actuator assembly coupled to said axially moveable output shaft through a transmission assembly, such that said actuator assembly translates motion to said output shaft and said valve through the use of said transmission assembly for driving said valve and opening said valve gate, said actuator assembly operable for providing movement of said valve between an open position and a closed position, and stopping said valve at any position therebetween.
A valve gate assembly for an injection molding machine, comprising:
- a valve gate having a valve operable for being moved between a fully open position and a fully closed position to control the movement of a flowable material into a cavity;
- an axially movable output shaft in substantial axial alignment with said valve;
- and
- an actuator assembly coupled to said axially movable output shaft through a transmission assembly, wherein said transmission assembly translates rotary motion of said actuator assembly to linear motion of said output shaft for driving said valve and opening said valve gate, and said actuator assembly operable for providing movement of said valve between said fully open position and said fully closed position, and stopping said valve at any position therebetween.
A valve gate assembly for an injection molding machine, comprising:
- a valve operable for opening an closing a valve gate, said valve being moved incrementally between an open position and a closed position;
- an actuator assembly having an axially movable output shaft operable for moving said valve;
- a transmission assembly operable for translating rotary motion of said actuator to linear motion of said output shaft for driving said valve and opening said valve gate;
- and
- a pin formed as part of said valve for allowing or preventing the flow of molten material through said valve gate, said axially movable output shaft in substantial axial alignment with said valve.
Dependencies are inferred from the claim text.