IT7902922A0 - Congegno su presse idrauliche e presse piegatrici. - Google Patents
Congegno su presse idrauliche e presse piegatrici.Info
- Publication number
- IT7902922A0 IT7902922A0 IT7902922A IT292279A IT7902922A0 IT 7902922 A0 IT7902922 A0 IT 7902922A0 IT 7902922 A IT7902922 A IT 7902922A IT 292279 A IT292279 A IT 292279A IT 7902922 A0 IT7902922 A0 IT 7902922A0
- Authority
- IT
- Italy
- Prior art keywords
- hydraulic presses
- press brakes
- brakes
- press
- presses
- Prior art date
Links
Classifications
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- 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
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- 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
- B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Presses (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT68274A PT68274A (en) | 1978-07-11 | 1978-07-11 | Device applicable to presses and metal bending presses to syncronize the movements of the hydraulic cylinders and control slider cross member |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7902922A0 true IT7902922A0 (it) | 1979-07-11 |
IT1120157B IT1120157B (it) | 1986-03-19 |
Family
ID=20082297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT02922/79A IT1120157B (it) | 1978-07-11 | 1979-07-11 | Congegno su presse idrauliche e presse piegatrici |
Country Status (8)
Country | Link |
---|---|
US (1) | US4343226A (it) |
BE (1) | BE877621A (it) |
CH (1) | CH647975A5 (it) |
DE (1) | DE2926964C2 (it) |
FR (1) | FR2430842A1 (it) |
GB (1) | GB2026616B (it) |
IT (1) | IT1120157B (it) |
PT (1) | PT68274A (it) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622884A (en) * | 1981-04-10 | 1986-11-18 | Buchl Andrew F | Floating piston depth control apparatus |
DE3222051C2 (de) * | 1982-06-11 | 1984-10-11 | Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum | Hydraulische Steuerung |
DE3222672C1 (de) * | 1982-06-16 | 1984-01-19 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Einrichtung zum Verstellen von Schubumkehrern |
FR2576059A2 (fr) * | 1982-12-22 | 1986-07-18 | Gewerk Eisenhuette Westfalia | Dispositif de commande des verins de chapeaux coulissants d'unites de soutenements marchants hydrauliques |
DE3318641A1 (de) * | 1982-12-22 | 1984-06-28 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Einrichtung zur steuerung der schiebekappenzylinder hydraulischer schreitausbaueinheiten |
US4585172A (en) * | 1983-10-07 | 1986-04-29 | The Garrett Corporation | Hydraulic actuation |
US4892028A (en) * | 1984-09-10 | 1990-01-09 | Vbm Corporation | Fluid operated circuit for controlling a dual post hydraulic lift assembly |
DE3518162C1 (de) * | 1985-05-21 | 1986-04-24 | Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum | Vorrichtung zur UEberwachung des Gleichlaufs eines Rueckzylinders und eines Kappen-Schiebezylinders |
DE3607655A1 (de) * | 1986-03-08 | 1987-09-10 | Skf Gmbh | Hydraulisch betaetigte vorrichtung |
US4955282A (en) * | 1989-03-27 | 1990-09-11 | Ranson Ronald W | Uniform flow hydraulic system |
CH683162A5 (fr) * | 1990-04-25 | 1994-01-31 | Bobst Sa | Procédé d'asservissement du parallélisme des deux sommiers d'une presse à découper des éléments en forme de feuille ou bande en vue de la production d'emballages. |
US5511459A (en) * | 1994-03-24 | 1996-04-30 | Hanser; Stacy M. | Apparatus for synchronizing linear actuator movement |
DE19754883C2 (de) * | 1997-12-10 | 2002-02-07 | Hyco Pacoma Gmbh | Hydraulische Gleichlaufschaltung mit mindestens einem Hauptzylinder und mindestens einem Folgezylinder |
US6408736B1 (en) * | 1999-07-13 | 2002-06-25 | Welker Bearing Company | Synchronizing cylinder assembly with equal displacement hydraulic cylinder |
US20080155975A1 (en) * | 2006-12-28 | 2008-07-03 | Caterpillar Inc. | Hydraulic system with energy recovery |
CN100482953C (zh) * | 2007-09-26 | 2009-04-29 | 中南大学 | 巨型液压机同步平衡液压回路 |
US8920145B2 (en) | 2010-11-29 | 2014-12-30 | Gta Innovation, Llc | Synchronized hydraulic power module |
US8746128B2 (en) * | 2011-03-01 | 2014-06-10 | Tonand Brakes Inc. | Variable displacement piston-in-piston hydraulic unit |
CN102649138A (zh) * | 2012-05-07 | 2012-08-29 | 南通恒力重工机械有限公司 | 锻压设备的上下辊液压驱动控制回路 |
CN104998933B (zh) * | 2015-07-14 | 2016-11-30 | 绍兴市安雅信自动化技术有限公司 | 一种双机联动扭轴折弯机控制方法 |
DE102016205973A1 (de) * | 2016-04-11 | 2017-10-12 | Sms Group Gmbh | Hydraulikzylinder |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1426485U (it) * | ||||
US513493A (en) * | 1894-01-30 | Steam-engine | ||
US2346254A (en) * | 1941-12-01 | 1944-04-11 | Hydraulic Dev Corp Inc | Pump stroke varying structure |
US2565639A (en) * | 1945-01-22 | 1951-08-28 | Hpm Dev Corp | Platen leveling multiple ram press |
CH270636A (de) * | 1947-04-09 | 1950-09-15 | Joos Karl | Hydraulische Presse mit mehreren Zylindern. |
US2519900A (en) * | 1948-12-10 | 1950-08-22 | Hpm Dev Corp | Control circuit for multiple hydraulic press systems |
FR1018161A (fr) * | 1950-05-17 | 1952-12-29 | Dispositif hydraulique d'équilibrage | |
DE977475C (de) * | 1951-05-06 | 1966-08-04 | Eisengiesserei | Gleichlaufsteuerung an hydraulischen Mehrzylinderpressen, insbesondere Zweizylinder-Abkantpressen |
DE1012181B (de) * | 1952-10-25 | 1957-07-11 | Conrad Zschokke Zweigniederlas | Gleichlaufsteuerung fuer hydraulische Mehrzylinderpressen |
CH336263A (de) * | 1955-11-30 | 1959-02-15 | Zschokke Ag Conrad | Hydraulische Presse |
US2940262A (en) * | 1958-06-13 | 1960-06-14 | Addison T Smith | Hydraulic cross-regenerative circuit |
US3059431A (en) * | 1960-12-20 | 1962-10-23 | Niagara Machine & Tool Works | Hydraulic power transmission systems for press brakes and like machines |
GB1035816A (en) * | 1962-03-23 | 1966-07-13 | British United Shoe Machinery | Improvements in or relating to presses |
US3143924A (en) * | 1962-07-17 | 1964-08-11 | Pacific Ind Mfg Co | Control means for series connected cylinder drive assemblies |
US3186305A (en) * | 1963-07-02 | 1965-06-01 | Ex Cell O Corp | Hydraulic actuator mechanism |
SE309401B (it) * | 1965-06-10 | 1969-03-24 | Ursvikens Mek Verk | |
US3349669A (en) * | 1966-04-20 | 1967-10-31 | Rolland A Richardson | Ram attitude control system |
FR1539817A (fr) * | 1967-07-26 | 1968-09-20 | Promecam Sisson Lehmann Soc | Machine hydraulique pour la déformation de métaux en feuilles |
-
1978
- 1978-07-11 PT PT68274A patent/PT68274A/pt unknown
-
1979
- 1979-07-04 DE DE2926964A patent/DE2926964C2/de not_active Expired
- 1979-07-10 US US06/056,254 patent/US4343226A/en not_active Expired - Lifetime
- 1979-07-10 CH CH6400/79A patent/CH647975A5/de not_active IP Right Cessation
- 1979-07-11 IT IT02922/79A patent/IT1120157B/it active
- 1979-07-11 BE BE2/57944A patent/BE877621A/xx not_active IP Right Cessation
- 1979-07-11 GB GB7924209A patent/GB2026616B/en not_active Expired
- 1979-07-11 FR FR7918509A patent/FR2430842A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2026616A (en) | 1980-02-06 |
FR2430842B1 (it) | 1983-11-04 |
IT1120157B (it) | 1986-03-19 |
PT68274A (en) | 1978-08-01 |
BE877621A (fr) | 1979-11-05 |
US4343226A (en) | 1982-08-10 |
DE2926964A1 (de) | 1980-01-31 |
GB2026616B (en) | 1982-09-08 |
FR2430842A1 (fr) | 1980-02-08 |
DE2926964C2 (de) | 1983-05-19 |
CH647975A5 (de) | 1985-02-28 |
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