公开(公告)号：EP1541330A4

公开(公告)日：2007-03-14

申请号：EP03760155

申请日：2003-06-17

申请人： AMADA CO LTD ,  NS ENGINEERING INC

发明人： NAITO KINSHIRO ,  SEKIYAMA TOKUZO ,  OTAKE TOSHIAKI ,  KURIYAMA HARUHIKO

IPC分类号： B21D28/36 ,  B30B1/26 ,  B30B15/14 ,  B30B15/18 ,  H02P6/08

CPC分类号： B30B15/148 ,  B30B1/266 ,  Y10T74/18056 ,  Y10T74/18248 ,  Y10T74/19056 ,  Y10T74/19698 ,  Y10T74/20341 ,  Y10T74/2036 ,  Y10T83/8726 ,  Y10T83/8843 ,  Y10T83/8844

摘要： A servo-drive system of a press, wherein a pair of servo-motors (30a, 30b) as the power sources of a ram (22) capable of generating a necessary ram pressure by using a torque obtained by synthesizing the same torques based on speed-torque characteristics are mirror-images of each other and installed, opposite to each other, at both ends of an operating shaft (20) vertically moving the ram (22), whereby the operating shaft (20) can be directly driven by operating the pair of servo-motors (30a, 30b) as an integral part.

公开(公告)号：EP1535676A4

公开(公告)日：2005-08-03

申请号：EP03760154

申请日：2003-06-17

申请人： AMADA CO LTD ,  NAITO KINSHIRO

发明人： NAITO KINSHIRO ,  SHIMIZU MASAYUKI ,  ENDO SHIGERU ,  MATSUMOTO TAKASHI ,  NAKAI HIROSHI ,  KOBAYASHI HIROYUKI

IPC分类号： B21D28/34 ,  B21D45/00 ,  B26D7/18 ,  B26F1/40 ,  B21D28/00 ,  B21D28/36 ,  B21D45/04 ,  B21D45/08

CPC分类号： B26D7/1854 ,  B21D28/34 ,  B21D45/003 ,  B26F1/40 ,  B26F1/44 ,  Y10T83/0443 ,  Y10T83/0453 ,  Y10T83/2066 ,  Y10T83/2068 ,  Y10T83/9416 ,  Y10T83/9425 ,  Y10T83/9437

摘要： A die device, wherein cores (15) having discharge ports (13) communicating with die holes (9) are installed in die bodies (11) having the die holes (9) for punching out a work, a plurality of fluid jetting ports (25) jetting fluid in the lower directions of the discharge holes (13) are provided in the cores (15), the inflow ports (27) allowing the compressed fluid to flow into the fluid jetting ports (25) are provided in the die bodies (11), the cores (13) are formed of a resin and the discharge holes are formed in tapered holes larger in diameter toward the lower side, and peripheral grooves (29) communicating with the inflow ports (27) are provided in the outer peripheral surfaces of the die bodies (11).

公开(公告)号：EP1625907A4

公开(公告)日：2010-11-10

申请号：EP04717264

申请日：2004-03-04

申请人： AMADA CO LTD

发明人： TOKIWA TORU ,  NAITO KINSHIRO

IPC分类号： B23D55/08 ,  B23D55/06 ,  B23D59/00

CPC分类号： B23D59/001 ,  B23D55/005 ,  B23D55/06 ,  Y10T83/04 ,  Y10T83/0605 ,  Y10T83/141 ,  Y10T83/148 ,  Y10T83/159 ,  Y10T83/707 ,  Y10T83/7076

公开(公告)号：EP1167778A4

公开(公告)日：2002-07-24

申请号：EP99940586

申请日：1999-08-31

申请人： AMADA ENGINEERING CT CO LTD ,  AMADA CO LTD ,  NAITO KINSHIRO

发明人： NAITO KINSHIRO ,  SHIMIZU MASAYUKI ,  HARA HIDEO ,  TAKAHASHI OSAMU

IPC分类号： F15B11/17 ,  F15B13/04 ,  F15B13/044 ,  F16K11/078 ,  B30B15/16 ,  F15B11/028 ,  F15B11/042

CPC分类号： F16K11/078 ,  D04H18/02 ,  F15B11/17 ,  F15B13/0402 ,  F15B13/0406 ,  F15B13/0444 ,  F15B2211/20592 ,  F15B2211/31582 ,  F15B2211/327 ,  F15B2211/6654 ,  Y10T137/86549

摘要： A rotary servo valve (1) comprising at least two types of high and low pressure pump ports (33, 39), wherein a rotatable and linearly reciprocating spool (11) is installed through a spool guide hole (7) in a valve main body (9), a servo motor (15) drivingly rotating the spool and a linear actuator (13) reciprocatingly moving it are provided, whereby the pump ports can be switched selectively by the reciprocating movement of the spool and the cylinder ports can be switched selectively and flow rate can be controlled by the rotation.