Apparatus and method for purging injection molding system
First Claim
1. A method of open-mold purging in an injection molding system including a manifold to receive material injected from an injection molding machine, comprising the steps of:
- (A) selecting a target purge pressure;
(B) injecting material from the injection molding machine into the manifold; and
(C) controlling the purge pressure to substantially track the target purge pressure;
wherein the purge pressure is controllable between the injection molding machine and the gate independently from the injection molding machine pressure.
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Accused Products
Abstract
An injection molding apparatus, system and method are provided in which the rate of material flow during the injection cycle is controlled. According to one preferred embodiment, a method of open-mold purging is provided in an injection molding system including a manifold to receive material injected from an injection molding machine. The method includes the steps of selecting a target purge pressure; injecting material from the injection molding machine into the manifold; and controlling the purge pressure to substantially track the target purge pressure, wherein the purge pressure is controllable independently from the injection molding machine pressure.
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Citations
10 Claims
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1. A method of open-mold purging in an injection molding system including a manifold to receive material injected from an injection molding machine, comprising the steps of:
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(A) selecting a target purge pressure;
(B) injecting material from the injection molding machine into the manifold; and
(C) controlling the purge pressure to substantially track the target purge pressure;
wherein the purge pressure is controllable between the injection molding machine and the gate independently from the injection molding machine pressure.- View Dependent Claims (2, 3, 4, 5)
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6. An injection molding system comprising:
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a mold;
an injection molding machine;
a manifold; and
a controller used to control open mold purging of the manifold, wherein the controller controls a pressure of material used to purge the manifold, independently from the injection molding machine injection pressure and between the injection molding machine and the gate. - View Dependent Claims (7)
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8. An injection molding system comprising:
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a manifold to deliver material into a mold that is injected into the manifold from an injection molding machine; and
a controller used to control open mold purging of the manifold, the controller to control a pressure of material used to purge the manifold, independently from the injection molding machine injection pressure and between the injection molding machine and the gate. - View Dependent Claims (9, 10)
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Specification