ATE275009T1 - HIGH PERFORMANCE BENDING PRESS WITH REDUCED ENERGY LOSS - Google Patents

HIGH PERFORMANCE BENDING PRESS WITH REDUCED ENERGY LOSS

Info

Publication number
ATE275009T1
ATE275009T1 AT02079123T AT02079123T ATE275009T1 AT E275009 T1 ATE275009 T1 AT E275009T1 AT 02079123 T AT02079123 T AT 02079123T AT 02079123 T AT02079123 T AT 02079123T AT E275009 T1 ATE275009 T1 AT E275009T1
Authority
AT
Austria
Prior art keywords
pump
swivel angle
pressure
transducer
valve
Prior art date
Application number
AT02079123T
Other languages
German (de)
Inventor
Wolfgang Kunze
Original Assignee
Salvagnini Italia Spa
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 Salvagnini Italia Spa filed Critical Salvagnini Italia Spa
Application granted granted Critical
Publication of ATE275009T1 publication Critical patent/ATE275009T1/en

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

A bending machine comprises a bending unit (8) moved by hydraulic actuators (12, 15) controlled by a variable displacement hydraulic pump (16) provided with an electronic closed-loop flow rate, pressure and power control system (25, 29, 35, 37, 39) including an electrically controlled proportional valve (25). The valve (25) includes a valve spool (26) for the control of the swivel angle of the pump (16) and a proportional solenoid (27) for moving the valve spool (26) to a position corresponding to a desired swivel angle of the pump (16). The control system (25, 29, 35, 37, 39) includes an inductive position transducer (35), a pump swivel angle transducer (37), a pump pressure transducer (39) and a programmed electronic control unit (29) which receives position, swivel angle and pressure signals (34, 36, 38) from said transducers (35, 37, 39) and predefined pressure, power and flow rate commands (30, 31, 32) and supplies a control signal (28) to said proportional solenoid (27). <IMAGE>
AT02079123T 2001-10-11 2002-10-04 HIGH PERFORMANCE BENDING PRESS WITH REDUCED ENERGY LOSS ATE275009T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001006636U JP3085306U (en) 2001-10-11 2001-10-11 Bending equipment

Publications (1)

Publication Number Publication Date
ATE275009T1 true ATE275009T1 (en) 2004-09-15

Family

ID=18874494

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02079123T ATE275009T1 (en) 2001-10-11 2002-10-04 HIGH PERFORMANCE BENDING PRESS WITH REDUCED ENERGY LOSS

Country Status (8)

Country Link
US (1) US20030070463A1 (en)
EP (1) EP1302252B1 (en)
JP (1) JP3085306U (en)
KR (1) KR100880244B1 (en)
AT (1) ATE275009T1 (en)
CA (1) CA2397422A1 (en)
DE (1) DE60201114T2 (en)
ES (1) ES2227392T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004019584D1 (en) * 2004-10-22 2009-04-02 Finn Power Oy KINEMATIC SYSTEM FOR MOVING WORKING UNITS OF MACHINES FOR BENDING AND FORMING METAL PLATES
US8943936B2 (en) * 2007-03-13 2015-02-03 Moran BORENSTEIN Method and apparatus for forming a sheet of foil
JP4910097B2 (en) 2011-07-25 2012-04-04 コージ産業株式会社 Shelf equipment
ITMI20121583A1 (en) * 2012-09-24 2014-03-25 Salvagnini Italia Spa ADJUSTABLE BLADE PANEL MACHINE.
ITMI20132219A1 (en) * 2013-12-30 2015-07-01 Cosma S R L SHEET BENDING MACHINE
AT515280B1 (en) 2014-06-10 2015-08-15 Trumpf Maschinen Austria Gmbh Bending press with bending unit and method for forming

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645849A1 (en) * 1976-10-11 1978-04-13 Osterwalder Ag HYDRAULICALLY DRIVEN PRESS
DE3422089A1 (en) * 1984-06-14 1985-12-19 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR REGULATING THE PRESSURE AND FLOW RATE OF AN ADJUSTABLE PUMP
IT1204674B (en) * 1987-06-03 1989-03-10 Salvagnini Transferica Spa BENDING MACHINE FOR SHEETS WITH UNIFORM COMPRESSION PLATE
IT1258577B (en) * 1992-04-22 1996-02-27 Antonio Codatto HANDLING DEVICE FOR PRESSING BLADES FOR SHEETS
US6375433B1 (en) * 2000-07-07 2002-04-23 Caterpillar Inc. Method and apparatus for controlling pump discharge pressure of a variable displacement hydraulic pump

Also Published As

Publication number Publication date
DE60201114D1 (en) 2004-10-07
ES2227392T3 (en) 2005-04-01
KR100880244B1 (en) 2009-01-28
EP1302252A1 (en) 2003-04-16
JP3085306U (en) 2002-04-26
EP1302252B1 (en) 2004-09-01
KR20030030954A (en) 2003-04-18
US20030070463A1 (en) 2003-04-17
CA2397422A1 (en) 2003-04-11
DE60201114T2 (en) 2005-09-01

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Legal Events

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