IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0897276
(1997-07-21)
|
우선권정보 |
JP-0192432 (1996-07-22) |
발명자
/ 주소 |
- Iwamoto Norihiro,JPX
- Kodama Shinobu,JPX
- Fujiyoshi Noboru,JPX
|
출원인 / 주소 |
- Toshiba Kikai Kabushiki Kaisha, JPX
|
대리인 / 주소 |
Thomas, Kayden, Horstemeyer & Risley
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
A dynamic variation of a cavity pressure (P, Vac) in a die cavity (17) defined between a stationary die (3) and a movable die (7) is supervised during an injection of molten metal (M) by a pressure supervisory system (27, 29, 43, 45, 53, 75, 83, 95) that includes a pressure detection path (27,37) co
A dynamic variation of a cavity pressure (P, Vac) in a die cavity (17) defined between a stationary die (3) and a movable die (7) is supervised during an injection of molten metal (M) by a pressure supervisory system (27, 29, 43, 45, 53, 75, 83, 95) that includes a pressure detection path (27,37) communicating with the die cavity, a pressure sensor (73) for detecting the cavity pressure through the pressure detection path and a processor (75) for processing detection data of the cavity pressure, and the stationary die (3) is formed with a pressure detection port (27) that constitutes part of the pressure detection path.
대표청구항
▼
[ What is claimed is:] [1.] A die casting machine (1) comprising:a first die (3);a second die (7) movable relative to the first die;a locking system (C, 5, 9, R) for locking the first and second dies to each other to have a die cavity (17) defined therebetween;an injection system (11, 13, 15) for in
[ What is claimed is:] [1.] A die casting machine (1) comprising:a first die (3);a second die (7) movable relative to the first die;a locking system (C, 5, 9, R) for locking the first and second dies to each other to have a die cavity (17) defined therebetween;an injection system (11, 13, 15) for injecting a body of molten metal (M) under a variable injection pressure to the die cavity; anda pressure supervisory system (27, 29, 43, 45, 53, 75, 83, 95) for supervising a set of pressures associated with a die casting operation of the die casting machine to produce a casting (19), the set of pressures including a cavity pressure (P, Vac) in the die cavity, the pressure supervisory system comprising:a pressure detection path (27, 37) communicating with the die cavity;first pressure detection means (29, 47) for detecting the cavity pressure through the pressure detection path;a processor (75) for processing detection data of the cavity pressure to supervise the cavity pressure; anda second pressure detection means (48, 53) for detecting a pressure difference across the pressure detection path (27, 37);wherein said processor (75) processes detection data of the pressure difference to confirm no blocking in the pressure detection path.
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