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AssigneeSynventive Molding Solutions, Inc.
InventorsMichael Vasapoli, Sergio Antunes, Mark Moss, Christopher W. Lee, Mark Doyle
Estimating the term…
In an injection molding machine 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 a sensor for sensing a selected condition of the melt material at a position downstream of the upstream melt flow controller; an actuator controller interconnected to the upstream actuator, the actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value indicative of the signal received from the sensor as a variable for controlling operation of the upstream actuator; wherein the upstream melt flow controller is adapted to control the rate of flow of the fluid material at the selected location within the upstream channel according to the algorithm.
In a molding machine having a manifold for distributing a melt material flowing under pressure through a passage leading to a gate of a mold cavity wherein the rate of flow of the melt material is determined by positioning of a pin that is controllably movable through the channel to create a gap of controllable size between the pin and the passage, wherein the pin is disposed within the melt material on which the melt material exerts a melt pressure force, an apparatus for controlling positioning of the pin comprising:
In a molding machine having a manifold for distributing a melt material flowing under pressure through a passage leading to a gate of a mold cavity wherein the rate of flow of the melt material is determined by positioning of a pin that is controllably movable through the channel, wherein the pin has a flow control surface that establishes a variable flow rate of the melt material according to positioning of the pin within the passage, wherein the pin is disposed within the melt material on which the melt material exerts a melt pressure force, an apparatus for controlling positioning of the pin comprising:
In an injection molding system having a manifold to direct melt material through a passage to a gate which leads to a mold cavity, the passage having a valve pin movably disposed therein, the valve pin being controllably movable by an actuator and having a flow control surface that receives and exerts a melt pressure force on the actuator, the movement of the valve pin within the passage positioning the flow control surface at varying positions within the passage that vary the flow rate of the melt material through the passage, the method comprising the steps of:
Dependencies are inferred from the claim text.