[특허]Method of injection molding a preform and apparatus for the same

[미국특허] Method of injection molding a preform and apparatus for the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-049/06 B29C-049/64
출원번호	US-0403742 (1995-03-13)
우선권정보	JP-0208547 (1993-07-30)
국제출원번호	PCT/JP94/01247 (1994-07-29)
§371/§102 date	19950313 (19950313)
국제공개번호	WO-9503930 (1995-02-09)
발명자 / 주소	Takada Minoru (Ueda JPX) Sato Koichi (Ueda JPX) Yokobayashi Kazuyuki (Ueda JPX)
출원인 / 주소	Nissei ASB Machine Co., Ltd. (Komori JPX 03)
인용정보	피인용 횟수 : 19 인용 특허 : 0

초록 ▼

An injection molding apparatus for a preform is disclosed, having an injection molding station (14) and a cooling and ejection station (16). In the injection molding station (14), neck cavity molds (60), injection core molds (50) and an injection cavity mold (42) are clamped and preforms (1) are injection molded. Thereafter, the injection cavity mold (42) is separated at a relatively high temperature. The preforms (1) are transferred to the cooling and ejection station (16) while being cooled by the injection core molds (50) and neck cavity molds (60). While the next preforms (1) are being injection molded in the injection molding station (14), in the cooling and ejection station (16) cooling of the preforms (1) continues. After cooling the preforms (1) to a temperature suitable for release, the injection core molds (50) are separated only through a stroke sufficient to allow a space to open between core pins (52) of the injection core molds 50 and the inner surface of the preforms (1). Thereafter the neck cavity molds (60) are separated and the preforms (1) are ejected. When the injection molding of the next preforms (1) in the injection molding station (14) is completed, a rotary wheel (30) is driven rotatingly in the opposite direction to the previous operation, and the injection core molds (50) and neck cavity molds (60) are interchanged between the two stations (14 and 16).

대표청구항 ▼

A method of injection molding a preform, comprising: a step in an injection molding station of injection molding a preform in clamped molds including an injection cavity mold and injection core mold each of which has a cooling portion; a step in said injection molding station of releasing said preform from said injection cavity mold; a step of transferring said preform while being cooled by said injection core mold to a cooling and ejection station; and a step in said cooling and ejection station of cooling said preform by said injection core mold and thereafter ejecting said preform from said injection core mold during an injection molding cycle for a next preform in said injection molding station, wherein in said injection molding step, said preform, which has a neck portion having an undercut with respect to a direction of mold-opening, is injection molded using a neck cavity mold defining the outer surface of said neck portion, and said neck cavity mold comprises a split pair of molds having cooling portions; in said transfer step and said cooling step in said cooling and ejection station, said preform is cooled with said injection core mold and said neck cavity mold maintained in the clamped state; and in said ejection step in said cooling and ejection station, said injection core mold is separated from said neck cavity mold by relative mold-opening driving through only a stroke sufficient to allow a space to open between said injection core mold and the inner surface of said preform held by said neck cavity mold, and thereafter said split pair of molds of said neck cavity mold is driven to be separated, and said preform is ejected.

이 특허를 인용한 특허 (19) 인용/피인용 타임라인 분석

Gellert, Jobst U.; Babin, Denis L., Apparatus and method for multi-layer injection molding.
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Gellert, Jobst U.; Babin, Denis L., Apparatus and method for multi-layer injection molding.
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Jobst U. Gellert CA; Denis L. Babin CA; Itsuto Nakanishi CA, Apparatus and method for multi-layer injection molding.
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Adriano Sartor IT; Antonio Da Rios IT, Apparatus for the preparation of preforms in manufacturing plants for the production of bottles and containers or products of various kind.
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Ogihara Shuichi,JPX, Container molding apparatus.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Sakurai Atsushi,JPX ; Netsu Yoichi,JPX ; Tsuchiya Yoichi,JPX, Injection blow molding machine, injection blow molding method and injection molding machine.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Yokobayashi Kazuyuki,JPX ; Ogihara Shyuichi,JPX, Injection stretch blow molding apparatus.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Yokobayashi Kazuyuki,JPX ; Ogihara Shuichi,JPX, Injection stretch blow molding apparatus and method with discharge guide.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Yokobayashi Kazuyuki,JPX ; Ogihara Shuichi,JPX, Injection stretch blow molding apparatus with preform heating and guide member.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Yokobayashi Kazuyuki,JPX ; Ogihara Shuichi,JPX, Injection stretch blow molding apparatus with upright preform molding and inverted blow molding.
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Takada, Minoru; Sato, Koichi; Yokobayashi, Kazuyuki; Ogihara, Shuichi, Injection stretch blow molding device with transfer station and pitch changing for blow molding.
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Takada Minoru,JPX ; Sato Koichi,JPX ; Yokobayashi Kazuyuki,JPX ; Ogihara Shuichi,JPX, Injection stretch blow molding method with upright preform molding and inverted blow molding.
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Ansell, Scott Frederick; Litwin, Michael W.; Berckmiller, Gregory L.; Freeman, Timothy P.; Fox, Richard J.; Phillips, Robert B.; Daniels, Thomas R.; Barbas, Richard F.; Krebsbach, Gerald R., Method and mold for making ophthalmic devices.
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Yoshiike, Yutaka; Hasegawa, Kazuhide; Miyashita, Shoji, Method for injection stretch blow molding.
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Yanagimachi, Yukio; Nakazawa, Nobuhiko, Method of injection stretch blow molding heatproof bottles.
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Gellert Jobst U.,CAX ; Babin Denis L.,CAX ; Zhuang Helen Qun,CAX, Seepage system for an injection molding apparatus.
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Paul R. Matysek CA, Shuttle system for an apparatus for injection molding.
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Takada, Minoru; Sato, Koichi; Sakurai, Atsushi; Netsu, Yoichi; Tsuchiya, Yoichi, System of injection blow molding and injection molding device.
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Lai,Yat Kwong; Matysek,Paul, Two position double injection molding apparatus.
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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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[미국특허] Method of injection molding a preform and apparatus for the same 원문보기

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