GB1351278A - Overload protection for presses - Google Patents

Overload protection for presses

Info

Publication number
GB1351278A
GB1351278A GB645673A GB645673A GB1351278A GB 1351278 A GB1351278 A GB 1351278A GB 645673 A GB645673 A GB 645673A GB 645673 A GB645673 A GB 645673A GB 1351278 A GB1351278 A GB 1351278A
Authority
GB
United Kingdom
Prior art keywords
presses
pressure
overload protection
counter pressure
feb
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
GB645673A
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 GB1351278A publication Critical patent/GB1351278A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

1351278 Presses L SCHULER GmbH 9 Feb 1973 [10 Feb 1972] 6456/73 Heading B3H [Also in Divisions B5 and F2] An overload protection device for a press comprises a reservoir 2 of pressurized liquid adapted to transmit force from a press drive 3-6 to a press ram 1, and a pressure relief valve 23 normally held closed by hydraulic counter pressure in chamber 18, but arranged when excess pressure in the reservoir opens it to open a second valve 27 which releases the counter pressure. A pump 9 supplies counter pressure for both valves.
GB645673A 1972-02-10 1973-02-09 Overload protection for presses Expired GB1351278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2206314 1972-02-10

Publications (1)

Publication Number Publication Date
GB1351278A true GB1351278A (en) 1974-04-24

Family

ID=5835636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB645673A Expired GB1351278A (en) 1972-02-10 1973-02-09 Overload protection for presses

Country Status (4)

Country Link
JP (1) JPS4892960A (en)
FR (1) FR2171396B1 (en)
GB (1) GB1351278A (en)
IT (1) IT978884B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800832A1 (en) * 1978-01-10 1979-07-12 Schuler Gmbh L Overload safeguard system for press - has pressure cushion in hydraulic fluid circuit reacting on counter-pressure system
CN103334975A (en) * 2013-06-18 2013-10-02 福建海源自动化机械股份有限公司 Multi-runner compound-control compressor charging device
CN103334974A (en) * 2013-06-18 2013-10-02 福建海源自动化机械股份有限公司 Self-adaptive multistage pressure relief controlled press liquid filling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460410A1 (en) * 1979-06-28 1981-01-23 Paul Hydraulique Hydraulic circuit overpressure protection valve - has relief valve connected to differential piston to detect surges

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800832A1 (en) * 1978-01-10 1979-07-12 Schuler Gmbh L Overload safeguard system for press - has pressure cushion in hydraulic fluid circuit reacting on counter-pressure system
CN103334975A (en) * 2013-06-18 2013-10-02 福建海源自动化机械股份有限公司 Multi-runner compound-control compressor charging device
CN103334974A (en) * 2013-06-18 2013-10-02 福建海源自动化机械股份有限公司 Self-adaptive multistage pressure relief controlled press liquid filling device
CN103334975B (en) * 2013-06-18 2015-10-28 福建海源自动化机械股份有限公司 A kind of press charging device of multiple flow passages complex controll
CN103334974B (en) * 2013-06-18 2015-10-28 福建海源自动化机械股份有限公司 A kind of adaptive multistage unloads the press charging device of pressure-controlled

Also Published As

Publication number Publication date
JPS4892960A (en) 1973-12-01
FR2171396B1 (en) 1979-03-30
IT978884B (en) 1974-09-20
FR2171396A1 (en) 1973-09-21

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Legal Events

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