FR2379375A1 - HYDRAULIC SHOCK-ABSORBING DEVICE FOR CUTTING PRESS - Google Patents

HYDRAULIC SHOCK-ABSORBING DEVICE FOR CUTTING PRESS

Info

Publication number
FR2379375A1
FR2379375A1 FR7802241A FR7802241A FR2379375A1 FR 2379375 A1 FR2379375 A1 FR 2379375A1 FR 7802241 A FR7802241 A FR 7802241A FR 7802241 A FR7802241 A FR 7802241A FR 2379375 A1 FR2379375 A1 FR 2379375A1
Authority
FR
France
Prior art keywords
chambers
valve
cutting
absorbing device
press
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.)
Granted
Application number
FR7802241A
Other languages
French (fr)
Other versions
FR2379375B1 (en
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.)
Gulf and Western Manufacturing Co
Original Assignee
Gulf and Western Manufacturing Co
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 Gulf and Western Manufacturing Co filed Critical Gulf and Western Manufacturing Co
Publication of FR2379375A1 publication Critical patent/FR2379375A1/en
Application granted granted Critical
Publication of FR2379375B1 publication Critical patent/FR2379375B1/fr
Granted legal-status Critical Current

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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/20—Applications of drives for reducing noise or wear

Abstract

Dispositif hydraulique d'amortissement des chocs se produisant dans une presse à découper lors de la percée de la matière par les éléments de coupe. Il comprend une vanne 52 d'arrêt permettant un écoulement réduit du fluide hydraulique de chambres 30 pendant le mouvement de descente du coulisseau 16 d'une presse 10, mais empêchant totalement l'écoulement du fluide hydraulique des chambres 30 après que les éléments 20 et 18 d'une coupe ont percé la matiere à découper. A cet effet, la vanne 52 est sensible au débit d'écoulement du fluide sortant des chambres 30 et lorsque ce débit augmente soudainement au moment de la percée de la matière, la vanne 52 prend une position de fermeture. Domaine d'application : presses à découper.Hydraulic device for damping shocks occurring in a die-cutting press when the material is pierced by the cutting elements. It includes a shut-off valve 52 permitting reduced flow of hydraulic fluid from chambers 30 during the downward movement of slider 16 of a press 10, but totally preventing the flow of hydraulic fluid from chambers 30 after elements 20 and 18 of a cut have pierced the material to be cut. To this end, the valve 52 is sensitive to the flow rate of the fluid exiting the chambers 30 and when this flow rate suddenly increases at the moment of the piercing of the material, the valve 52 assumes a closed position. Field of application: die-cutting presses.

FR7802241A 1977-02-07 1978-01-26 HYDRAULIC SHOCK-ABSORBING DEVICE FOR CUTTING PRESS Granted FR2379375A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76598177A 1977-02-07 1977-02-07

Publications (2)

Publication Number Publication Date
FR2379375A1 true FR2379375A1 (en) 1978-09-01
FR2379375B1 FR2379375B1 (en) 1983-06-24

Family

ID=25075047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802241A Granted FR2379375A1 (en) 1977-02-07 1978-01-26 HYDRAULIC SHOCK-ABSORBING DEVICE FOR CUTTING PRESS

Country Status (7)

Country Link
JP (1) JPS53104487A (en)
AU (1) AU511150B2 (en)
CA (1) CA1063925A (en)
DE (1) DE2804185A1 (en)
ES (1) ES466614A1 (en)
FR (1) FR2379375A1 (en)
GB (1) GB1566992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492317A1 (en) * 1980-10-20 1982-04-23 Gulf & Western Mfg Co HYDRAULIC SHOCK ABSORBER DEVICE FOR CUTTING PRESS

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214496A (en) * 1978-10-06 1980-07-29 Gulf & Western Manufacturing Company Shock dampening systems for presses
JPH04122415U (en) * 1991-04-12 1992-11-04 株式会社小松製作所 Shearing machine vibration reduction device
EP1758697B1 (en) 2004-06-02 2012-01-25 Stefan Fellenberg Method and press for cutting high-strength sheet metal
DE102005053350A1 (en) 2005-11-07 2007-05-10 Schuler Pressen Gmbh & Co. Kg Press with cutting impact damping
DE102007030328A1 (en) * 2007-06-29 2009-01-02 Helmut Schuster Damping device for diagonal cutting device that is utilized for cutting e.g. stainless steel bar, has chamber formed between base unit and fluid surface, and outlet with cross-sectional area for outputting fluid during piston axial stroke
CN102825833A (en) * 2012-09-28 2012-12-19 南通久久液压机械制造有限公司 Shock absorber of hydraulic machine
CN109622850A (en) * 2018-12-21 2019-04-16 南通科技职业学院 A kind of monolithic processor controlled forging machine tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1427403C3 (en) * 1962-02-01 1975-04-30 Horst 4600 Dortmund Schenk Cutting shock-absorbing counter-pressure system in a press, in particular in a hydraulic press
DE1577187C3 (en) * 1964-12-11 1975-08-28 Horst 4600 Dortmund Schenk Cutting impact steaming counter pressure system in a hydraulic press
DE2221290B2 (en) * 1972-04-29 1976-09-02 L. Schuler GmbH, 7320 Göppingen CUTTING IMPACT DAMPER DEVICE FOR MECHANICAL PRESSES
DE2512822A1 (en) * 1975-03-22 1976-09-30 Horst Schenk Cutting impact damping in presses - has piston cylinder unit arranged so that hydraulic fluid is expelled from cylinder to effect damping
DE2653714C2 (en) * 1976-11-26 1978-11-09 Frieseke & Hoepfner Gmbh, 8520 Erlangen Cutting shock absorption device for punch presses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492317A1 (en) * 1980-10-20 1982-04-23 Gulf & Western Mfg Co HYDRAULIC SHOCK ABSORBER DEVICE FOR CUTTING PRESS

Also Published As

Publication number Publication date
AU511150B2 (en) 1980-07-31
GB1566992A (en) 1980-05-08
CA1063925A (en) 1979-10-09
ES466614A1 (en) 1978-10-01
JPS5749329B2 (en) 1982-10-21
JPS53104487A (en) 1978-09-11
FR2379375B1 (en) 1983-06-24
DE2804185A1 (en) 1978-08-10
AU3188577A (en) 1979-06-28

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse