发明授权
US5074192A Supply device and procedure for press actuators, with recovery of the
raising energy
失效
提供执行机构的供应设备和程序,恢复提高能源
- 专利标题: Supply device and procedure for press actuators, with recovery of the raising energy
- 专利标题(中): 提供执行机构的供应设备和程序,恢复提高能源
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申请号: US348304申请日: 1989-05-05
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公开(公告)号: US5074192A公开(公告)日: 1991-12-24
- 发明人: Victor Gheorghita
- 申请人: Victor Gheorghita
- 申请人地址: ITX Castellanza
- 专利权人: Pomini Farrel S.p.A.
- 当前专利权人: Pomini Farrel S.p.A.
- 当前专利权人地址: ITX Castellanza
- 优先权: ITX20486A/88 19880506
- 主分类号: B30B7/00
- IPC分类号: B30B7/00 ; B29B7/24 ; B29B7/60 ; B29C45/18
摘要:
Device and procedure for the supply, with recovery of the raising energy, of press actuators having a cylinder within which a piston delimits two chambers, namely an upper and a lower chamber, which are supplied with pneumatic power, the said device having a pneumatic control unit connected to the mains and including at least one supply line to the upper chamber of the actuator and one supply line to the lower chamber of the actuator, these lines having supply and discharge valves, in which device the supply lines to the chambers of the actuator pass through an economizer unit interposed between the control unit and the actuator and including a servocontrolled valve which intercepts the supply line to the upper chamber, a servocontrolled valve which intercepts the supply line to the lower chamber, and a connecting pipe between the supply line of the lower chamber and that of the upper chamber, downstream of the said intercepting valves, and provided with its own servocontrolled intercepting valve, while means of detecting the position of the actuator piston are provided, are functionally connected to the servocontrolled valves, and can cause the opening and closing of these valves in successive phases of the movement of the piston.
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