Hot Runner System Sensor
First Claim
1. A hot runner manifold system comprising:
- a manifold having at least one passageway for transmitting a resin between at least one inlet and outlet, said passageway further including at least one residual hole; and
a plug including;
an external surface sized and shaped to seal with said residual hole, wherein at least a portion of said external surface is in direct contact with said resin in said passageway when said plug is disposed within said residual hole;
a cavity having an internal surface that does not contact said resin when said plug is disposed within said residual hole; and
a sensor secured to said internal surface of said cavity.
3 Assignments
0 Petitions
Accused Products
Abstract
A plug for use with a residual hole of a passageway in a hot runner system manifold may include an external surface for sealing with the residual hole, wherein a portion of the external surface is in direct contact with the resin in the passageway, a cavity having an internal surface that does not contact the resin, and a sensor secured to the internal surface using chemical vapor deposition, physical vapor deposition, plasma spray, or an adhesive. An ejector pin may include a sensor secured to the sidewall using chemical vapor deposition, physical vapor deposition, plasma spray, or an adhesive. A mold may include two inserts each an external surface and an internal surface defining a mold cavity. A sensing element may be secured to the external surface the first or second mold inserts wherein the sensing element does not contact the internal surface of the mold cavity.
62 Citations
25 Claims
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1. A hot runner manifold system comprising:
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a manifold having at least one passageway for transmitting a resin between at least one inlet and outlet, said passageway further including at least one residual hole; and a plug including; an external surface sized and shaped to seal with said residual hole, wherein at least a portion of said external surface is in direct contact with said resin in said passageway when said plug is disposed within said residual hole; a cavity having an internal surface that does not contact said resin when said plug is disposed within said residual hole; and a sensor secured to said internal surface of said cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A sensor for use with a hot runner system manifold having at least one passageway for the distribution of resin and at least one residual hole, said sensor comprising:
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a body portion having an external surface sized and shaped to seal with said residual hole and a first and a second end portion, wherein at least a portion of said external surface of said first end portion is adapted to be in direct contact with said resin in said passageway when said plug is disposed within said residual hole; a cavity disposed within said body portion, said cavity having an internal surface that does not contact said resin when said plug is disposed within said residual hole; and a sensing element secured to said internal surface of said cavity. - View Dependent Claims (16, 17, 18, 19)
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20. A method of constructing a manifold for a hot runner system, said method comprising the acts of:
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forming a first section of a passageway in a solid piece of material; forming a second section of said passageway in said material, said act of forming said second section including forming a residual hole in said material; and securing a sensor into said residual hole. - View Dependent Claims (21, 22)
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23. An ejector system comprising:
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a first and a second mold plate defining a mold cavity for forming a molded part; means for moving said at least one of said mold plates with respect to the other mold plate; at least one ejector pin having a first and a second end disposed generally opposite from each other and a sidewall; means contacting said first end of said at least one ejector pin for moving said at least one ejector pin from a retracted position to and extended position wherein said second end of said at least one ejector pin contacts said at least a portion of said molded part; and at least one sensing element secured to said sidewall of said at least one ejector pin.
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24. A mold comprising:
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a first and a second mold insert each comprising an external surface and an internal surface, said internal surfaces defining a mold cavity configured to accept resin; and at least one sensing element secured to said external surface of at least one of said first and said second mold inserts wherein said at least one sensing element does not contact said internal surface of said mold cavity. - View Dependent Claims (25)
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Specification