Title:
プレスシステム
Document Type and Number:
Japanese Patent JP6670864
Kind Code:
B2
Abstract:
A press system providing excellent energy efficiency for a whole press system and capable of achieving low prices is provided. A die cushion apparatus 160-1 constituting a press system 10 supports a cushion pad 128, includes a hydraulic cylinder 130 which generates a die cushion load on the cushion pad 128 when a slide 110 of a press machine 100-1 descends, the press machine 100-1 includes a hydraulic cylinder 137 which generates part of a press load on the slide 110 when the slide 110 descends. The pressure generation chamber 130b of the hydraulic cylinder 130 for generating a die cushion load and the pressure generation chamber 137b of the hydraulic cylinder 137 for generating part of the press load can communicate with each other via pipes 152, 155 and a first logic valve 171 for a period during which the die cushion load acts.
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Inventors:
Yasuyuki Kono
Application Number:
JP2018015454A
Publication Date:
March 25, 2020
Filing Date:
January 31, 2018
Export Citation:
Assignee:
Aida Engineering Co., Ltd.
International Classes:
B30B1/32; B21D24/02; B30B1/26; B30B1/34; B30B15/16
Domestic Patent References:
| JP2017018988A | ||||
| JP46012595B1 | ||||
| JP58009225U | ||||
| JP46028078B1 |
Foreign References:
| US5794482 | ||||
| DE3040297A1 | ||||
| WO2009054341A1 | ||||
| US20070062247 |
Attorney, Agent or Firm:
Kenzo Matsuura