GB1415835A - Hydraulic presses - Google Patents

Hydraulic presses

Info

Publication number
GB1415835A
GB1415835A GB4471371A GB4471371A GB1415835A GB 1415835 A GB1415835 A GB 1415835A GB 4471371 A GB4471371 A GB 4471371A GB 4471371 A GB4471371 A GB 4471371A GB 1415835 A GB1415835 A GB 1415835A
Authority
GB
United Kingdom
Prior art keywords
workpiece
cylinders
pressure
sept
detected
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4471371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann Meer AG
Original Assignee
Mannesmann Meer AG
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 Mannesmann Meer AG filed Critical Mannesmann Meer AG
Priority to GB4471371A priority Critical patent/GB1415835A/en
Priority to IT29461/72A priority patent/IT967682B/en
Priority to US00291087A priority patent/US3835682A/en
Priority to FR7233755A priority patent/FR2155322A5/fr
Priority to SU1833599A priority patent/SU465775A3/en
Priority to DE2247201A priority patent/DE2247201C3/en
Priority to JP47096070A priority patent/JPS4872771A/ja
Publication of GB1415835A publication Critical patent/GB1415835A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

1415835 Hydraulic press MANNESMANN-MEER AG 25 Sept 1972 [24 Sept 1971] 44713/71 Heading B5F [Also in Division B3] In an hydraulic press having a row of ram and cylinder assemblies for applying pressure to an elongate workpiece, the pressure in one or more assemblies is controlled in dependence on the extent to which the workpiece extends into the zone over which the assembly(ies) exert force. The press may be constructed as in copending Application 40308/71, having five movable cylinders. To avoid excessive deformation in the case of a workpiece of less than maximum length, each workpiece is fed in the direction of arrow 27 until a sensor 23a detects its trailing edge. The feed is stopped, and the degree of penetration of the leading edge into zone E1 is detected by a sensor 24, which reduces the pressure in the end cylinder, as compared with that in the other cylinders, accordingly. In the case of still shorter workpieces, the trailing edge may be detected by sensors 23b, 23c, or 23d, the corresponding cylinders being off-loaded accordingly.
GB4471371A 1971-09-24 1971-09-24 Hydraulic presses Expired GB1415835A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB4471371A GB1415835A (en) 1971-09-24 1971-09-24 Hydraulic presses
IT29461/72A IT967682B (en) 1971-09-24 1972-09-21 HYDRAULIC PRESS IN PARTICULAR FOR FORMING PIPES
US00291087A US3835682A (en) 1971-09-24 1972-09-21 Hydraulic presses
FR7233755A FR2155322A5 (en) 1971-09-24 1972-09-22
SU1833599A SU465775A3 (en) 1971-09-24 1972-09-22 The method of leveling force stamping hydraulic press
DE2247201A DE2247201C3 (en) 1971-09-24 1972-09-22 Control of a hydraulic O-press
JP47096070A JPS4872771A (en) 1971-09-24 1972-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4471371A GB1415835A (en) 1971-09-24 1971-09-24 Hydraulic presses

Publications (1)

Publication Number Publication Date
GB1415835A true GB1415835A (en) 1975-11-26

Family

ID=10434436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4471371A Expired GB1415835A (en) 1971-09-24 1971-09-24 Hydraulic presses

Country Status (7)

Country Link
US (1) US3835682A (en)
JP (1) JPS4872771A (en)
DE (1) DE2247201C3 (en)
FR (1) FR2155322A5 (en)
GB (1) GB1415835A (en)
IT (1) IT967682B (en)
SU (1) SU465775A3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714958C2 (en) * 1977-04-02 1983-01-27 G. Siempelkamp Gmbh & Co, 4150 Krefeld Hydraulic sheet metal bending press
US4445357A (en) * 1980-11-03 1984-05-01 Kaiser Steel Corporation Pipe press
JPS59215226A (en) * 1983-05-19 1984-12-05 Amada Co Ltd Combined working device for plate material
US4939918A (en) * 1987-08-27 1990-07-10 The Minster Machine Company Monitorable and compensatable feedback tool and control system for a press
US4945742A (en) * 1987-08-27 1990-08-07 The Minster Machine Company Monitorable and compensatable feedback tool and control system for a press
DE69207545T2 (en) * 1991-10-18 1996-08-29 Inst Tech Precision Eng Index feed system
US5678446A (en) * 1991-10-18 1997-10-21 Institute Of Technology Precision Electrical Discharge Work's Index-feed machining system
EP0700736B1 (en) * 1991-10-18 1999-03-24 Institute Of Technology Precision Electrical Discharge Work's Index-feed machining system
DE4232728C2 (en) * 1992-09-30 1998-01-29 Pahnke Eng Gmbh & Co Kg Forming machine with press cylinder with two assigned piston pumps
JP2002172500A (en) * 2000-11-30 2002-06-18 Kawasaki Hydromechanics Corp Hydraulic control method for trial hydraulic press
DE10116609A1 (en) * 2001-04-03 2002-11-07 Roland Man Druckmasch Device for producing a sleeve-shaped printing form
DE10260445A1 (en) * 2002-12-21 2004-07-08 Man Roland Druckmaschinen Ag Device for producing a sleeve-shaped printing form
DE102010010990C5 (en) * 2010-03-10 2021-01-28 Siempelkamp Maschinen- Und Anlagenbau Gmbh Pipe bending press
CN105751561A (en) * 2016-05-05 2016-07-13 海安县巨力磁材有限责任公司 Hydraulic machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US999661A (en) * 1910-11-21 1911-08-01 Lorenza H Kunkle Automatic tool-forging machine.
US1975249A (en) * 1930-11-20 1934-10-02 Duff Patents Company Inc Press

Also Published As

Publication number Publication date
SU465775A3 (en) 1975-03-30
IT967682B (en) 1974-03-11
DE2247201B2 (en) 1978-06-08
DE2247201C3 (en) 1979-02-01
US3835682A (en) 1974-09-17
JPS4872771A (en) 1973-10-01
DE2247201A1 (en) 1973-03-29
FR2155322A5 (en) 1973-05-18

Similar Documents

Publication Publication Date Title
GB1415835A (en) Hydraulic presses
GB1510591A (en) Toggle-operated press
IE36189L (en) Pierce nut tool.
FR2086484A1 (en) Multi plunger speed pressure die casting plant
GB1192268A (en) Fastener Installation Tool.
GB1482810A (en) Dies for cross rolling machines
GB1312477A (en) Hydraulic cylinder apparatus
GB1246332A (en) Stroke control for ram type machine
ES414342A1 (en) Fluid ram provided with means for braking the ram piston at the end of its stroke
ES311703A1 (en) Improvements in presses with a hydraulic drive pressure hub. (Machine-translation by Google Translate, not legally binding)
ES388599A1 (en) Roller press
GB780165A (en) Improvements in or relating to sheet metal working machines
GB1385794A (en) Material handling apparatus
GB1339934A (en) Hydraulic press
GB1322856A (en) Separating and conveying suction devices for the suction head of a sheet feeder
GB1470099A (en) Press
GB1399597A (en) Drawing die assemblies
GB1373919A (en) Hydraulic presses
GB1086477A (en) Improvements in and relating to hydraulic presses
GB1169066A (en) Press
FR2112492A1 (en) Hydraulic forging press control appts - using a computer
GB1269022A (en) Improvements in or relating to advancing mine roof supports
GB1283901A (en) Hydraulic presses
FR2272773A1 (en) Press tool for thick walled components - has two opposing rams to prevent cracks in component bore
GB1362489A (en) Forging machine

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee