BR8901797A - Conjunto de comando hidraulico para o comando de acionamento de um hidrocilindro de dupla acao - Google Patents

Conjunto de comando hidraulico para o comando de acionamento de um hidrocilindro de dupla acao

Info

Publication number
BR8901797A
BR8901797A BR898901797A BR8901797A BR8901797A BR 8901797 A BR8901797 A BR 8901797A BR 898901797 A BR898901797 A BR 898901797A BR 8901797 A BR8901797 A BR 8901797A BR 8901797 A BR8901797 A BR 8901797A
Authority
BR
Brazil
Prior art keywords
pressure
changeover valve
hydraulic cylinder
face
supply
Prior art date
Application number
BR898901797A
Other languages
English (en)
Inventor
Eckehart Schulze
Original Assignee
Eckehart Schulze
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eckehart Schulze filed Critical Eckehart Schulze
Publication of BR8901797A publication Critical patent/BR8901797A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forging (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Vehicle Body Suspensions (AREA)
BR898901797A 1988-04-29 1989-04-14 Conjunto de comando hidraulico para o comando de acionamento de um hidrocilindro de dupla acao BR8901797A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3814580A DE3814580A1 (de) 1988-04-29 1988-04-29 Hydraulische steuereinrichtung fuer die antriebssteuerung eines doppelt-wirkenden hydrozylinders

Publications (1)

Publication Number Publication Date
BR8901797A true BR8901797A (pt) 1989-11-28

Family

ID=6353234

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898901797A BR8901797A (pt) 1988-04-29 1989-04-14 Conjunto de comando hidraulico para o comando de acionamento de um hidrocilindro de dupla acao

Country Status (7)

Country Link
US (1) US5042362A (pt)
EP (1) EP0339247B1 (pt)
JP (1) JPH0696200B2 (pt)
AT (1) ATE92804T1 (pt)
BR (1) BR8901797A (pt)
DE (2) DE3814580A1 (pt)
ES (1) ES2043923T3 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681672B2 (de) * 1993-02-02 2000-09-20 PUTZMEISTER Aktiengesellschaft Verfahren zum fördern von vorzerkleinerten metallschrott oder dergleichen festkörper enthaltenden dickstoffen
DE4412224A1 (de) * 1994-04-09 1995-10-12 Graebener Pressensysteme Gmbh Presse für eine Kaltverformung von Metallwerkstücken
DE19829679A1 (de) * 1998-07-03 2000-01-05 Hartmann & Laemmle Hydraulische Antriebseinrichtung für eine Widerstands-Schweißmaschine
WO2000023209A1 (en) * 1998-10-21 2000-04-27 The Bronx Engineering Company Limited Roll forming line with punching tool
US6939120B1 (en) * 2002-09-12 2005-09-06 Komag, Inc. Disk alignment apparatus and method for patterned media production
US20040132301A1 (en) * 2002-09-12 2004-07-08 Harper Bruce M. Indirect fluid pressure imprinting
WO2004101263A1 (de) * 2003-05-16 2004-11-25 Bosch Rexroth Ag Antrieb für eine stanz- oder umformmaschine
JP2007502213A (ja) * 2003-05-16 2007-02-08 ボッシュ レックスロス アーゲー 流体圧駆動装置
CN100423934C (zh) * 2003-05-16 2008-10-08 博世力士乐股份有限公司 液压传动装置
JP4444620B2 (ja) * 2003-10-15 2010-03-31 ナブテスコ株式会社 油圧モータの自動変速機構
DE102004049247A1 (de) 2004-10-01 2006-04-13 Aesculap Ag & Co. Kg Chirurgisches Instrument
CN101733968B (zh) * 2008-11-04 2014-01-29 昆山施耐特机械有限公司 气液压冲压机接触工件检测机构
CN102641979B (zh) * 2012-05-14 2014-07-16 浙江金瑞五金索具有限公司 可墩两头的冷墩机
CN102744345B (zh) * 2012-07-19 2014-06-11 浙江大学 锻造操作机缓冲缸液压系统
CN105522094B (zh) * 2014-09-29 2018-07-31 天津市天锻压力机有限公司 基于中压电机驱动比例泵的恒功率控制方法
WO2018075347A1 (en) 2016-10-18 2018-04-26 Barnes Group Inc. Variable pulsating, gap control, auto-learning press cushion device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US946481A (en) * 1909-06-11 1910-01-11 Ellis Bryan Anderson Automatic change-valve for presses.
US2356366A (en) * 1942-12-04 1944-08-22 Hydraulic Machinery Inc Power transmission
CH459766A (de) * 1967-05-12 1968-07-15 Huegi Wilfried Hydraulische Presse mit einem doppelt wirkenden Presskolben
US3604884A (en) * 1969-04-24 1971-09-14 Essar Corp Electrode feed control for edm machine
FR2242234A1 (en) * 1973-08-27 1975-03-28 Experimentalmy Inst Kuznechno Hydraulic press with pulsating drive - high pressure feed line and outlet line connected to pulsator
AT328296B (de) * 1973-11-22 1976-03-10 Ruthner Industrieanlagen Ag Steuerung fur hydraulische pressen mit mehreren presskolben
DE2645849A1 (de) * 1976-10-11 1978-04-13 Osterwalder Ag Hydraulisch angetriebene presse
US4216702A (en) * 1978-05-01 1980-08-12 Eaton Yale Ltd. Pressure sensing regenerative hydraulic system
DE3521579A1 (de) * 1985-06-15 1986-12-18 J.M. Voith Gmbh, 7920 Heidenheim Steuerventil
DE3715261C1 (en) * 1987-05-08 1988-10-13 Schirmer Plate Und Siempelkamp Open-die forging press

Also Published As

Publication number Publication date
JPH01299800A (ja) 1989-12-04
JPH0696200B2 (ja) 1994-11-30
ATE92804T1 (de) 1993-08-15
ES2043923T3 (es) 1994-01-01
EP0339247A1 (de) 1989-11-02
DE58905209D1 (de) 1993-09-16
US5042362A (en) 1991-08-27
EP0339247B1 (de) 1993-08-11
DE3814580A1 (de) 1989-11-09

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Legal Events

Date Code Title Description
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FA4 Application deemed withdrawn (art. 21(1))