GB1348627A - Method and apparatus for compensating the weight of the ram and the upper die of a press - Google Patents

Method and apparatus for compensating the weight of the ram and the upper die of a press

Info

Publication number
GB1348627A
GB1348627A GB645573A GB645573A GB1348627A GB 1348627 A GB1348627 A GB 1348627A GB 645573 A GB645573 A GB 645573A GB 645573 A GB645573 A GB 645573A GB 1348627 A GB1348627 A GB 1348627A
Authority
GB
United Kingdom
Prior art keywords
ram
press
weight
upper die
motion
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
GB645573A
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of GB1348627A publication Critical patent/GB1348627A/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
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
    • B30B15/284—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices releasing fluid from a fluid chamber subjected to overload pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064—Counterbalancing means for movable press elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Control Of Presses (AREA)
  • Forging (AREA)

Abstract

1348627 Forging presses L SCHULER GmbH 9 Feb 1973 [10 Feb 1972] 6455/73 Heading B3H [Also in Division B5] In a press in which the weight of the ram and upper die carried thereby is supported by a compressed air cylinder unit 5-9, an exact balance is achieved when there is lost motion between the ram drive by sensors 13-14 detecting upward or downward motion of the ram and causing an appropriate adjustment of the pressure in the unit. Motion of the ram may be detected by limit switches in the ram path or by movement of a gear-wheel connected to the ram. The lost motion is achieved by releasing the pressure in an hydraulic overload prevention device 11.
GB645573A 1972-02-10 1973-02-09 Method and apparatus for compensating the weight of the ram and the upper die of a press Expired GB1348627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722206323 DE2206323C3 (en) 1972-02-10 1972-02-10 Counterbalance control for the ram of a press

Publications (1)

Publication Number Publication Date
GB1348627A true GB1348627A (en) 1974-03-20

Family

ID=5835644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB645573A Expired GB1348627A (en) 1972-02-10 1973-02-09 Method and apparatus for compensating the weight of the ram and the upper die of a press

Country Status (5)

Country Link
JP (1) JPS5622320B2 (en)
DE (1) DE2206323C3 (en)
FR (1) FR2171397B1 (en)
GB (1) GB1348627A (en)
IT (1) IT978883B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011809A (en) * 1974-04-03 1977-03-15 L. Schuler Gmbh Press with hydraulic overload safety device and ram weight counterbalancing mechanism
US4013002A (en) * 1974-03-26 1977-03-22 L. Schuler Gmbh Process and apparatus for actuating the ram weight compensation mechanism of a press
CN106923363A (en) * 2017-03-10 2017-07-07 山西省农业机械化科学研究院 Ruminant licks brick pressure setting and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416102C3 (en) * 1974-04-03 1984-07-19 L. Schuler GmbH, 7320 Göppingen Press with hydraulic overload protection and slide weight compensation
DE2501275C2 (en) * 1975-01-15 1987-01-02 L. Schuler GmbH, 7320 Göppingen Press with hydraulic overload protection and ram weight compensation
DE2807738B2 (en) * 1978-02-23 1979-12-20 Maschinenfabrik Weingarten Ag, 7987 Weingarten Device for balancing the weight of the ram including the upper tool part of a mechanical press
JPS5944960B2 (en) * 1979-03-01 1984-11-02 株式会社小松製作所 Counter balancer pressure automatic control device
US4283929A (en) * 1979-07-16 1981-08-18 Danly Machine Corporation Coded automatic counterbalance control
DD147927A1 (en) * 1980-01-23 1981-04-29 Gerd Zemann DEVICE FOR COMPENSATING DYNAMIC MASS PROPULSES AT MECHANICAL PRESSES
JPH03206238A (en) * 1989-12-30 1991-09-09 Dai Ichi Horm Co Ltd Bearing wall device of three-story frame wall construction method building

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013002A (en) * 1974-03-26 1977-03-22 L. Schuler Gmbh Process and apparatus for actuating the ram weight compensation mechanism of a press
US4011809A (en) * 1974-04-03 1977-03-15 L. Schuler Gmbh Press with hydraulic overload safety device and ram weight counterbalancing mechanism
CN106923363A (en) * 2017-03-10 2017-07-07 山西省农业机械化科学研究院 Ruminant licks brick pressure setting and method

Also Published As

Publication number Publication date
JPS5622320B2 (en) 1981-05-25
FR2171397B1 (en) 1976-09-10
JPS4892959A (en) 1973-12-01
DE2206323A1 (en) 1973-08-16
DE2206323B2 (en) 1979-12-13
FR2171397A1 (en) 1973-09-21
IT978883B (en) 1974-09-20
DE2206323C3 (en) 1980-08-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee