Valve gate apparatus for an injection mold
OwnerKazuyoshi Sekine, Kin-ichi Yokoyamainventors
Life of this patent
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Abstract
Disclosed is a valve gate apparatus for an injection mold comprising: a valve gate 6 in communication with a mold cavity; a valve pin 3 adapted to be actuated to open and close the valve gate 6, received therein for reciprocal movement in the axial direction of a probe assembly 1 equipped with a body heater 2; and a resin melt passage 7 formed within the probe assembly 1 at the position where the valve pin 3 is opened; the resin melt passage 7 having a gradually curved region 8 formed adjacent the opening end of the passage.
Claims13
A valve gate apparatus for an injection mold having a mold cavity comprising:
- a probe assembly extending in an axial direction;
- a valve gate coupled to the probe assembly in communication with a mold cavity;
- and
- a valve pin adapted to be actuated to open and close said valve gate and received in the gate for reciprocal movement in the axial direction of the probe assembly;
- a resin melt passage being formed in fluid communication with the gate within said probe assembly and having a portion thereof located at a position where the pin is opened, said passage having an opening at an end thereof at said portion;
- said resin melt passage having a gradually curved region formed adjacent to the opening end thereof.
A valve gate apparatus for an injection mold having a mold cavity comprising:
- a probe assembly including inner and outer probe members extending in an axial direction;
- a valve gate coupled to the probe assembly in fluid communication with said mold cavity;
- a valve pin movably secured to the probe assembly and adapted to be actuated to open and close said valve gate by reciprocal movement relative to and in the axial direction of the probe assembly;
- said inner probe member having a resin melt passage, said passage having an opening at an end thereof in fluid communication with the valve gate;
- said outer and inner probe members each comprising a one piece construction, the outer probe member including a tip having a bore in fluid communication with said passage opening, said tip bore for receiving an end of said valve pin for providing a path in which said resin melt flows from said passage to the valve gate, said inner probe member having a valve pin receiving bore aligned with said tip bore;
- and
- a body heater in said outer probe member for heating said probe assembly.
A valve gate apparatus for an injection mold having a mold cavity comprising:
- a probe assembly comprising inner and outer probe members having a central longitudinal axis, said members extending in an axial direction;
- a valve gate coupled to the probe assembly in communication with said mold cavity;
- a valve pin selectively received in the gate and located in a valve pin receiving bore in the inner probe member, said pin being adapted to be actuated to open and close said valve gate by reciprocal movement relative to and in the axial direction;
- and
- a resin melt passage within one of said inner and outer probe members and having an opening at a passage end in fluid communication with the gate at a position where the gate is opened;
- said outer probe member including a tip having a bore in fluid communication with said passage opening, said tip bore for receiving an end of said valve pin for providing a path in which said resin melt flows from said passage to the valve gate, said inner probe member having a valve pin receiving bore aligned with said tip bore;
- said tip bore and valve pin receiving bore being axially aligned on a second axis offset from said central longitudinal axis.
Dependencies are inferred from the claim text.