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公开(公告)号：EP3785893A1
公开(公告)日：2021-03-03
申请号：EP20180217.0
申请日：2020-06-16
发明人： KOHNO, Yasuyuki , IWAMURA, Ryosho
IPC分类号： B30B15/16
摘要： The press machine 1 includes: a hydraulic cylinder 30 configured to drive a slide 20; a plurality of hydraulic pumps/motors (P/M1 to P/M5); a first port of each of which is connected to a first pressurizing chamber 30A of the hydraulic cylinder 30; a plurality of servomotors (SM1 to SM5) axially connected to rotating shafts of the respective hydraulic pumps/motors (P/M1 to P/M5) respectively; a low-pressure accumulator 50 to which second ports of the hydraulic pumps/motors (P/M1 to P/M5) are each connected; a high-pressure accumulator 60 connected to a second pressurizing chamber 30B of the hydraulic cylinder 30; and a slide position controller 100 configured to control the servomotors (SM1 to SM5) so that a position of the slide matches a position corresponding to a slide position command signal based on the slide position command signal from a slide position commander and a slide position signal from a slide position detector 70.
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公开(公告)号：EP4438211A1
公开(公告)日：2024-10-02
申请号：EP24161316.5
申请日：2024-03-05
发明人： IWAMURA, Ryosho , KUMASAKA, Toru
CPC分类号： B21D24/16 , B23D31/001 , B23D21/14 , B21D51/2646 , B21D51/2615
摘要： Provided is a trimming device 1 for a rectangular container configured to cut a rectangular container 100 along a trim line 100A, and includes: a die 10, which accommodates an outer periphery of the rectangular container 100, and is arranged along the trim line 100A on a lower side thereof; a punch 20 movable within a plane parallel to a bottom surface 101; a long-axis direction drive unit 61 configured to move the punch 20 along a long-axis direction of the rectangular container 100; a first short-axis direction drive unit 62, which is arranged on a proximal side of the long-axis direction drive unit 61, and is configured to move the punch 20 along a short-axis direction; and a second short-axis direction drive unit 63, which is arranged side by side with the first short-axis direction drive unit 62 along the long-axis direction on a distal side from the long-axis direction drive unit 61, and is configured to move the punch 20 along the short-axis direction of the rectangular container 100.
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4.发明公开
公开(公告)号：EP3575010A3
公开(公告)日：2019-12-18
申请号：EP19174797.1
申请日：2019-05-16
发明人： KOHNO, Yasuyuki , MAKABE, Junji , IWAMURA, Ryosho
摘要： A double-blank detecting apparatus (302) for a press machine (100) that is provided with a die cushion apparatus (200) and is configured to form blanks (80) one by one automatically and repeatedly. The double-blank detecting apparatus (302) includes: a position signal acquiring unit (320) configured to acquire a slide position signal indicating a position of a slide (110) of the press machine (100); a load signal acquiring unit (310) configured to acquire a die cushion load signal indicating a die cushion load generated on a cushion pad (128) of the die cushion apparatus (200); and a double-blank detector (330) configured to detect a state in which a plurality of blanks (80) are stacked as a double blank based on the slide position signal acquired by the position signal acquiring unit (320) and the die cushion load signal acquired by the load signal acquiring unit (310).
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公开(公告)号：EP3330017A1
公开(公告)日：2018-06-06
申请号：EP18151884.6
申请日：2014-01-22
IPC分类号： B21D24/14
摘要： According to the die cushion apparatus of a press machine (100) and the die cushion controlling method of the present invention, in holding the cushion pad (2) on standby at a desired standby position, it is possible to hold the cushion pad (2) on standby in parallel with the lower faces of the dies (202) mounted to the slide (104), and if the lower faces of the dies (202) are inclined, it is possible to hold the cushion pad (2) on standby in the state of being inclined. Through this configuration, it is possible to easily allow the material to come into contact with the lower faces of the dies (202) from the beginning of the die cushion force control (beginning of the collision), and also possible to smoothen the die cushion action in the plane, thereby enhancing the formability.
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