[특허]Coinjection molding apparatus having rotary axial actuating mechanism

Coinjection molding apparatus having rotary axial actuating mechanism 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-045/23
출원번호	US-0889132 (1992-05-27)
우선권정보	CA-2068543 (1992-05-11)
발명자 / 주소	Gellert Jobst U. (7A Prince Street Georgetown Ontario CAX L7G 2X1)
인용정보	피인용 횟수 : 32 인용 특허 : 0

초록 ▼

Valve gated injection molding apparatus for coinjecting and/or sequentially injecting two different fluids through a gate into a cavity. An elongated valve pin member is received in an elongated valve sleeve member in alignment with the gate and both are reciprocated rotatably as well as axially by separate actuating mechanisms to control the flow of the fluids through the gate. Each actuating mechanism has a piston driven rack member to provide rotary motion which is then converted to axial movement of the corresponding valve member between the retracted open and forward closed positions. In one embodiment, helical threads on the valve members engage fixed teeth extending inwardly from the surrounding nozzle to convert the rotary motion of each valve member to corresponding axial movement. Linear position transducers on the rack members provide for accurate control of the valve members. This accurate control and the reduction in force required by these rotary axial actuating mechanisms minimizes wear resulting from repeated seating of the valve members.

대표청구항 ▼

In a valve gated hot runner injection molding apparatus having a nozzle received in a mold, the nozzle having a longitudinal bore leading to a gate extending through the mold to a cavity, first and second separate fluid channels extending to convey first and second fluids from first and second fluid sources through the nozzle to the gate, an elongated hollow valve sleeve member received in the longitudinal bore of the nozzle, the valve sleeve member being axially reciprocable in the longitudinal bore between a retracted position wherein the first fluid channel is open and a forward position wherein the first fluid channel is closed, an elongated valve pin member received in the hollow valve sleeve member, the valve pin member being axially reciprocable in the valve sleeve member between a retracted position wherein the second fluid channel is open and a forward position wherein the second fluid channel is closed, the improvement wherein the apparatus comprises; (a) first actuating mechanism which reciprocates the valve sleeve member rotatably and axially between the retracted open position and the forward closed position according to a predetermined cycle, and (b) second actuating mechanism which reciprocates the valve pin member rotatably and axially between the retracted open position and the forward closed position according to the predetermined cycle.

이 특허를 인용한 특허 (32)

Donnell ; Jr. Emerson B. (P.O. Box 386 Basking Ridge NJ 07920-0386), Adjustable injection molding apparatus for creating of products within a mold from fluid plastic material.
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Shingle,John M., Apparatus for introducing plastic material into an annular mold cavity.
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Bemis Peter F. ; Kolste Steven J. ; Albrecht Loren C. ; Swart Gerald W., Co-injection method apparatus for injection molding.
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Bemis, Peter F.; Berg, Gary Vande; Kolste, Steven, Co-injection methods using endothermic-blowing agents and products made therefrom.
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Seres, Jr.,Eric J.; Blundy,John; Goinski,Michael, Co-injection nozzle assembly.
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Fairy, Fabrice, Coinjection molding apparatus and related hot-runner nozzle.
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Keck,Ed; Bridgen,Dale E., Dual injection manifold.
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Heuchert John Michael ; Hendry James Watson, Gas assisted injection molding combining internal and external gas pressures.
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Dewar,Neil, Guided valve pin for an injection molding apparatus.
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Babin,Denis, Hot runner co-injection nozzle.
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Babin,Denis; Colonico,Gino, Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece.
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Lee Christopher W. ; Moss Mark D., Hot runner system for coinjection molding.
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Fairy, Fabrice, Injection molding apparatus having movable yoke plate.
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Babin,Denis, Injection molding apparatus with a melt channel in valve pin.
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Olaru, Gheorghe, Injection molding nozzle.
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Olaru,George, Injection molding nozzle.
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Gellert Jobst Ulrich,CAX ; Chu Simon,CAX, Injection molding valve member actuating mechanism.
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Babin,Denis, Injection nozzle system and injection molding machine incorporating same.
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Guenther,Hans; Olaru,George, Injection nozzle system for an injection molding machine.
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Okamura,Isao; Olaru,George, Metering device for a nozzle of a hot runner injection molding apparatus.
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Okamura, Isao; Olaru, George, Metering device for a nozzle of an injection molding apparatus.
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von Holdt John W., Method for adjustment of adjustable mold gate.
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James Watson Hendry ; John Michael Heuchert, Method for fluid compression of injection molded plastic material.
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Sicilia Roberto Domenic,CAX, Method of using a multiple gating nozzle.
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Dewar,Neil; Babin,Denis, Multi-position valve pin for an injection molding apparatus.
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Olaru, George, Nozzle for an injection molding apparatus.
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Fischer,Jonathon; Babin,Denis, Nozzle tip and seal.
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Olaru,George, Nozzle tip and seal.
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Möser, Hansjürgen, Regulating and control device for a needle element of a hot or cold channel of a plastic shaping tool.
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Babin,Denis, Tight pitch nozzle with individual valve gate control.
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Babin,Denis; Olaru,George, Valve gated injection molding system with independent flow control.
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Babin,Denis, Valve pin guiding tip for a nozzle.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Coinjection molding apparatus having rotary axial actuating mechanism 원문보기

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Coinjection molding apparatus having rotary axial actuating mechanism 원문보기

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이 특허를 인용한 특허 (32)

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