Invention Grant
- Patent Title: Die cushion apparatus of press machine and die cushion controlling method
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Application No.: US15368315Application Date: 2016-12-02
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Publication No.: US10363594B2Publication Date: 2019-07-30
- Inventor: Yasuyuki Kohno , Tadahiro Kondo , Ryosho Iwamura
- Applicant: AIDA ENGINEERING, LTD.
- Applicant Address: JP Kanagawa
- Assignee: AIDA ENGINEERING, LTD.
- Current Assignee: AIDA ENGINEERING, LTD.
- Current Assignee Address: JP Kanagawa
- Agency: McDermott Will & Emery LLP
- Priority: JP2013-011043 20130124
- Main IPC: B21D24/02
- IPC: B21D24/02 ; B21D24/14 ; B30B15/24 ; B21D24/08 ; B21D22/22

Abstract:
According to the die cushion apparatus of a press machine and the die cushion controlling method of the present invention, in holding the cushion pad on standby at a desired standby position, it is possible to hold the cushion pad on standby in parallel with the lower faces of the dies mounted to the slide, and if the lower faces of the dies are inclined, it is possible to hold the cushion pad 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 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.
Public/Granted literature
- US20170080472A1 DIE CUSHION APPARATUS OF PRESS MACHINE AND DIE CUSHION CONTROLLING METHOD Public/Granted day:2017-03-23
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