Method for using a sprue to reduce the size of a core layer hole in an injection molding process by terminating an injection stream within the sprue
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0919270
(2001-07-31)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
7 |
초록
▼
A method and apparatus for extruding plastic articles, the method comprising the steps of injecting at least one stream of plastic material into a mold, the mold including a first portion and a second portion, the first portion of said mold being used for forming at least one article, and the second
A method and apparatus for extruding plastic articles, the method comprising the steps of injecting at least one stream of plastic material into a mold, the mold including a first portion and a second portion, the first portion of said mold being used for forming at least one article, and the second portion of said article forming a sprue attached to the at least one article, and, terminating the at least one stream of plastic material in the second portion.
대표청구항
▼
A method and apparatus for extruding plastic articles, the method comprising the steps of injecting at least one stream of plastic material into a mold, the mold including a first portion and a second portion, the first portion of said mold being used for forming at least one article, and the second
A method and apparatus for extruding plastic articles, the method comprising the steps of injecting at least one stream of plastic material into a mold, the mold including a first portion and a second portion, the first portion of said mold being used for forming at least one article, and the second portion of said article forming a sprue attached to the at least one article, and, terminating the at least one stream of plastic material in the second portion. eption channel for attachment to an externally threaded cartridge mounting stem. 7. The apparatus of claim 1, further including: a housing mounting plate connected to said cartridge housing, wherein said housing mounting plate includes an internally threaded mounting-plate-stem-reception channel for attachment to an externally threaded cartridge mounting stem, and wherein said housing mounting plate includes cartridge oil input channel slots. 8. The apparatus of claim 7 wherein said housing mounting plate includes a mounting plate lip, and wherein said cartridge housing includes a housing bottom lip, further including: a lip-to-lip gasket between said mounting plate lip and said housing bottom lip, and a lip-gasket-lip clamping member for clamping said lip-to-lip gasket between said mounting plate lip and said housing bottom lip. 9. The apparatus of claim 1 wherein said turbulence box support plate includes adjustment-tool-reception notches which are in registration with said cartridge oil input channel slots. 10. The apparatus of claim 1 wherein said turbulence box includes: box side wall panels connected to said turbulence box support plate along side said box-reception notch, and a box roof panel connected to top portions of said box side wall panels, wherein said box side wall panels include turbulence flow orifices. 11. The apparatus of claim 10 wherein said turbulence flow orifices include first turbulence flow orifices and second turbulence flow orifices. 12. The apparatus of claim 11 wherein said second turbulence flow orifices are smaller than said first turbulence flow orifices, wherein said turbulence flow orifices cause enhanced turbulent flow inside said turbulence box, such that oil is retained inside said turbulence box for a relatively long period of time. 13. The apparatus of claim 12 wherein the cross-sectional area of said first turbulence flow orifices and said second turbulence flow orifices is substantially equal to the cross-sectional area of the cartridge mounting stem. 14. The apparatus of claim 1 wherein said turbulence box is formed from a turbulence box blank which includes: a box roof panel, a rear wall panel connected to said box roof panel at a fold line, a pair of box side wall panels connected to said rear wall panel at a respective pair of fold lines, wherein each of said box side wall panels includes first turbulence flow orifices and second turbulence flow orifices, and box-to-plate connector means, connected to said box side wall panels and said rear wall panel, for connecting said turbulence box to said turbulence box support plate. 15. The apparatus of claim 14 wherein said box-to-plate connector means include: a pair of box locking side tabs connected to each box side wall panel at respective fold lines, and a box locking rear tab connected to said rear wall panel at a fold line.
이 특허에 인용된 특허 (7)
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Swenson Paul, Apparatus for throttle-valving control for the co-extrusion of plastic materials as interior core streams encased by ou.
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McFarlane Richard H. (2571 Kaneville Rd. Geneva IL 60134), Method of in-line injection molding.
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Swenson Paul, Method of throttle-valving control for the co-extrusion of plastic materials.
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De\ath Roderick M. (Wantage GBX) Fairchild ; deceased Brian (late of Haywards Heath GBX by Angela J. Fairchild ; personal representative) Flude Ian (Wantage GBX), Multi-cavity, co-injection molding apparatus.
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Orimoto Hiroyuki (Sakakimachi JPX) Yokota Katsumasa (Sakakimachi JPX) Fukai Hidehiko (Sakakimachi JPX) Sato Koichi (Sakakimachi JPX), Multi-layer molding nozzle.
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Boring David E. (New Oxford PA), Self-regulating gate valve assembly for injection molding apparatus.
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Puri Rajan,CAX ; Wolff Peter C. ; Von Buren Stefan, Valve gated injection molding device.
이 특허를 인용한 특허 (6)
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Babin, Denis; Gammon, Scott, Coinjection hot runner injection molding system.
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Ten, Valery; Fairy, Fabrice, Coinjection hot runner injection molding system.
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Ten, Valery; Fairy, Fabrice; Babin, Denis; Gammon, Scott, Coinjection hot runner injection molding system.
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Thompson, John A., Mold runner for prevention of in-mold coating flow.
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Swenson, Paul M., Techniques to mold parts with injection-formed aperture in gate area.
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Swenson, Paul M., Techniques to mold parts with injection-formed aperture in gate area.
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