IT1247263B - Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento. - Google Patents

Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento.

Info

Publication number
IT1247263B
IT1247263B ITMI910523A ITMI910523A IT1247263B IT 1247263 B IT1247263 B IT 1247263B IT MI910523 A ITMI910523 A IT MI910523A IT MI910523 A ITMI910523 A IT MI910523A IT 1247263 B IT1247263 B IT 1247263B
Authority
IT
Italy
Prior art keywords
main
chamber
piston
main chamber
stem
Prior art date
Application number
ITMI910523A
Other languages
English (en)
Inventor
Carlo Brasca
Daniele Brasca
Original Assignee
Carlo Brasca
Daniele Brasca
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 Carlo Brasca, Daniele Brasca filed Critical Carlo Brasca
Priority to ITMI910523A priority Critical patent/IT1247263B/it
Publication of ITMI910523A0 publication Critical patent/ITMI910523A0/it
Priority to US07/838,179 priority patent/US5247871A/en
Priority to EP92103073A priority patent/EP0507070B1/en
Priority to DE69214699T priority patent/DE69214699T2/de
Publication of ITMI910523A1 publication Critical patent/ITMI910523A1/it
Application granted granted Critical
Publication of IT1247263B publication Critical patent/IT1247263B/it

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
    • B30B15/165—Control arrangements for fluid-driven presses for pneumatically-hydraulically driven presses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Il presente trovato si riferisce ad una testa di pressa pneumo-idraulica che comprende un corpo all'interno del quale è definita una camera principale soatanzialmente cilindrica che alloggia in modo scorrevole, lungo ma direzione assiale, un pistone principale che è provvisto di uno stelo che fuoriesce da un'estremità assiale della camera principale ed un pistone secondario che è distanziato dal pistone principale dalla parte opposta allo stelo citato. I due pistoni dividono a tenuta la camera principale in tre camere delle quali: due camere di estremità che sono collegabili con una sorgente di aria in pressione o con l'atmosfera per ottenere lo spostamento dei due pistoni lungo l'asse della camera principale nel moto di avvicinamento o di allontanamento dello stelo principale al pezzo da lavorare ed ma camera intermedia contenente un liquido. Nella camera principale è, inoltre, alloggiato uno stelo di azionamento che attraversa a tenuta il pistone secondario. Nella camera intermedia è disposto un setto che è fissato in modo solidale alle pareti della camera principale e che è attraversato da un passaggio per lo stelo di azionamento. L'azionamento della pressa avviene spingendo lo stelo di azionamento attraverso tale passaggio in avvicinamento al pistone principale in modo da realizzare un incremento della pressione nella zona della camera intermedia situata tra il pistone principale e il setto.
ITMI910523A 1991-02-28 1991-02-28 Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento. IT1247263B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITMI910523A IT1247263B (it) 1991-02-28 1991-02-28 Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento.
US07/838,179 US5247871A (en) 1991-02-28 1992-02-20 Combined pneumatic-hydraulic press head with high actuation speed
EP92103073A EP0507070B1 (en) 1991-02-28 1992-02-24 Combined pneumatic-hydraulic press head with high actuation speed
DE69214699T DE69214699T2 (de) 1991-02-28 1992-02-24 Schnellbetätigbarer pneumo-hydraulischer Presskopf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI910523A IT1247263B (it) 1991-02-28 1991-02-28 Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento.

Publications (3)

Publication Number Publication Date
ITMI910523A0 ITMI910523A0 (it) 1991-02-28
ITMI910523A1 ITMI910523A1 (it) 1992-08-28
IT1247263B true IT1247263B (it) 1994-12-12

Family

ID=11358794

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI910523A IT1247263B (it) 1991-02-28 1991-02-28 Testa di pressa pneumo-idraulica ad elevata velocita' di azionamento.

Country Status (4)

Country Link
US (1) US5247871A (it)
EP (1) EP0507070B1 (it)
DE (1) DE69214699T2 (it)
IT (1) IT1247263B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445011A1 (de) * 1994-12-16 1996-06-20 Tox Pressotechnik Gmbh Hydraulischer Druckübersetzer
DE19780220D2 (de) * 1996-03-19 1998-03-19 Tox Pressotechnik Gmbh Hydropneumatische Werkzeugmaschine
US6711984B2 (en) 2001-05-09 2004-03-30 James E. Tagge Bi-fluid actuator
DE10140082C1 (de) * 2001-08-16 2003-03-20 Kloeckner Desma Schuhmaschinen Vorrichtung zum Aufbringen der Schließkraft einer Spritzgießmaschine, insbesondere zur Herstellung von Schuhen
US6735944B2 (en) 2002-07-10 2004-05-18 Btm Corporation Air to oil intensifier
US6779343B2 (en) 2002-07-10 2004-08-24 Btm Corporation Air to oil intensifier
US7263831B2 (en) * 2004-01-06 2007-09-04 Btm Corporation Air-to-oil intensifying cylinder
US6996984B2 (en) * 2004-01-06 2006-02-14 Btm Corporation Air-to-oil intensifying cylinder
GB0412810D0 (en) * 2004-06-09 2004-07-14 Imi Norgren Ltd Actuator assembly
US7301118B2 (en) * 2005-09-26 2007-11-27 Chrysler Llc Welding gun with controller and method for using same
US7194859B1 (en) 2005-10-18 2007-03-27 Btm Corporation Intensifier
US7685925B2 (en) * 2007-08-15 2010-03-30 Btm Corporation Intensifying cylinder
IT1399908B1 (it) * 2010-04-28 2013-05-09 Ldp Italia S R L Testa di pressa ad azionamento elettro-idraulico, a ridotto consumo di energia.
ITMI20111570A1 (it) * 2011-09-01 2013-03-02 Daniele Brasca Unita' di spinta con avvicinamento sicuro
US10816016B2 (en) * 2018-10-31 2020-10-27 Seiko Instruments Inc. Thrust expansion device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR995204A (fr) * 1949-09-12 1951-11-29 Asea Ab Dispositif de serrage
US3059433A (en) * 1961-02-14 1962-10-23 Hirsch George Pressure and force multiplying devices
US3266415A (en) * 1964-06-02 1966-08-16 Basil S Palmer Air-hydraulic ram
DE2017007A1 (de) * 1970-04-09 1971-10-21 Geisel K Pneumatisch hydraulischer Kolben trieb
US3875365A (en) * 1970-10-30 1975-04-01 Donald Joseph Beneteau Pressure intensifier cylinder
IT1020968B (it) * 1974-10-10 1977-12-30 Peuti Anstalt Cilindro operatore ad azionamento fluidico con convertitore di sforzo incorporato
CH616992A5 (en) * 1977-03-24 1980-04-30 Schenker Emil Storen Und Masch Pneumatic-hydraulic piston/cylinder unit, in particular for the actuation of tools
DE2818337C2 (de) * 1978-04-26 1980-07-17 Haug, Paul, 7307 Aichwald Druckübersetzter hydropneumatischer
DE2834895C2 (de) * 1978-08-09 1983-10-20 Dr. Boy GmbH, 5466 Neustadt Hydraulische Formschließvorrichtung mit einem Druckübersetzer
US4288987A (en) * 1978-11-11 1981-09-15 Eugen Rapp Pneumo-hydraulic booster with rapid-traverse feature
DE2929616A1 (de) * 1979-07-21 1981-02-12 Haug Paul Druckuebersetzter hydropneumatischer antrieb
FR2535796A1 (fr) * 1982-11-09 1984-05-11 Desseigne Michel Dispositif de retour pneumatique rapide d'un ensemble pneumo-hydraulique : verin multiplicateur d'efforts
GB2175648A (en) * 1985-05-15 1986-12-03 Smeets Gerard G F Pressure intensifier hydraulic cylinder system
DE3828699A1 (de) * 1988-08-24 1990-03-01 Eugen Rapp Verfahren zur oelauffuellung eines hydro-pneumatischen druckuebersetzers und einrichtung zur durchfuehrung des verfahrens
US4961317A (en) * 1989-09-18 1990-10-09 Savair, Inc. Oleopneumatic intensifier cylinder

Also Published As

Publication number Publication date
EP0507070A2 (en) 1992-10-07
DE69214699D1 (de) 1996-11-28
ITMI910523A1 (it) 1992-08-28
EP0507070B1 (en) 1996-10-23
DE69214699T2 (de) 1997-05-28
US5247871A (en) 1993-09-28
ITMI910523A0 (it) 1991-02-28
EP0507070A3 (en) 1992-12-09

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529