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US 6,713,002 B2Granted
Manifold system having flow control
AssigneeSynventive Molding Solutions, Inc.
InventorsDavid Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
Life of this patent
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AssigneeSynventive Molding Solutions, Inc.
InventorsDavid Kazmer, Mark D. Moss, Mark Doyle, Huip van Geel
Estimating the term…
An injection molding apparatus and method are provided in which the rate of material flow during an injection cycle is controlled. According to one preferred embodiment, an injection molding apparatus is provided that includes a manifold, at least one injection nozzle coupled to the manifold, an actuator, and a valve pin adapted to reciprocate through the manifold and the injection nozzle. The valve pin has a first end coupled to the actuator, a second end that closes the gate in a forward position, and a control surface intermediate said first and second ends for adjusting the rate of material flow during an injection cycle. Retracting the valve pin tends to decrease the rate of material flow during the injection cycle and displacing the valve pin toward the gate tends to increase the rate of material flow during the injection cycle.
In an injection molding apparatus having upstream and downstream channels communicating with each other for delivering fluid material to one or more mold cavities, apparatus for controlling delivery of the melt material from the channels to the one or more mold cavities, each channel having an axis, the downstream channel having an axis intersecting a gate of a cavity of a mold, the upstream channel having an axis not intersecting the gate and being associated with an upstream actuator interconnected to an upstream melt flow controller disposed at a selected location within the upstream channel, the apparatus comprising:
Apparatus for controlling flow of a fluid material in an injection molding apparatus having a flow channel system having an upstream flow channel having an axis through which fluid material is routed to a gate of a mold, the apparatus comprising:
Method of controlling fluid flow during an injection cycle in an injection molding machine having a fluid flow distribution system for delivering fluid material to a gate of a mold, the method comprising:
Dependencies are inferred from the claim text.