GB1365654A – Forging machines
– Google Patents
GB1365654A – Forging machines
– Google Patents
Forging machines
Info
Publication number
GB1365654A
GB1365654A
GB661173A
GB661173A
GB1365654A
GB 1365654 A
GB1365654 A
GB 1365654A
GB 661173 A
GB661173 A
GB 661173A
GB 661173 A
GB661173 A
GB 661173A
GB 1365654 A
GB1365654 A
GB 1365654A
Authority
GB
United Kingdom
Prior art keywords
die
controller
piston
line
signals
Prior art date
1972-02-18
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
GB661173A
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.)
Maschinenfabrik Sack GmbH
Original Assignee
Maschinenfabrik Sack 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.)
1972-02-18
Filing date
1973-02-09
Publication date
1974-09-04
1973-02-09
Application filed by Maschinenfabrik Sack GmbH
filed
Critical
Maschinenfabrik Sack GmbH
1974-09-04
Publication of GB1365654A
publication
Critical
patent/GB1365654A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
B21J7/20—Drives for hammers; Transmission means therefor
B21J7/22—Drives for hammers; Transmission means therefor for power hammers
B21J7/28—Drives for hammers; Transmission means therefor for power hammers operated by hydraulic or liquid pressure
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
B21J7/20—Drives for hammers; Transmission means therefor
B21J7/46—Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups
Abstract
1365654 Forging MASCHINENFABRIK SACK GmbH 9 Feb 1973 [18 Feb 1972] 6611/73 Heading B3H A control device for a forging machine of the type with a set of co-operating dies 1 driven by respective piston-cylinder devices 3, 4 includes a device 48 for measuring the position of each die and an electrical controller 46 responsive to signals from the device 48 to control a servovalve 42 in the hydraulic line to a compensating piston-cylinder device 35 to vary the quantity of hydraulic fluid in the line 21 between a pistonpump 22 and the piston-cylinder devices 3, 4. The controller 46 compares the actual value of the innermost position of the die with a nominal value. The position of a piston-rod 38 of the compensating device 35 is also fed to the controller 46. A pair of transmitters 50, 58, feed signals to the controller to indicate the full retracted and fully advanced condition of the pump piston 24 which is driven by a crank 26 common to all the pump pistons of the dies. The signals from the transmitters 50, 58 cause the controller to receive the signal from the device 48 when the die is innermost and to move the valve 42 when the die is outermost and the line 21 is not pressurized. The position of the pistonrod 37 of the compensating device 35 determines the volume of the chamber 34 and thus the amount of fluid in the line 21 and hence the die and stroke positions.
GB661173A
1972-02-18
1973-02-09
Forging machines
Expired
GB1365654A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2207717A
DE2207717C3
(en)
1972-02-18
1972-02-18
Control device with hydraulic synchronization control for forging machines
Publications (1)
Publication Number
Publication Date
GB1365654A
true
GB1365654A
(en)
1974-09-04
Family
ID=5836386
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB661173A
Expired
GB1365654A
(en)
1972-02-18
1973-02-09
Forging machines
Country Status (7)
Country
Link
US
(1)
US3841125A
(en)
JP
(1)
JPS5725294B2
(en)
AT
(1)
AT322327B
(en)
DE
(1)
DE2207717C3
(en)
FR
(1)
FR2172431B3
(en)
GB
(1)
GB1365654A
(en)
IT
(1)
IT979232B
(en)
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3678411D1
(en)
*
1986-01-02
1991-05-02
Hasenclever Maschf Sms
FORGING MACHINE.
DE3607737C1
(en)
*
1986-03-08
1987-10-29
Pahnke Eng Gmbh & Co Kg
Hydraulically driven forging machine
DE3800220C1
(en)
*
1988-01-07
1989-02-02
Pahnke Engineering Gmbh & Co Kg, 4000 Duesseldorf, De
US5231859A
(en)
*
1992-03-03
1993-08-03
Trimble House Corporation
Fluting machine
DE4446580A1
(en)
*
1994-12-24
1996-07-04
Pahnke Eng Gmbh & Co Kg
Double press
AT404441B
(en)
*
1996-09-17
1998-11-25
Gfm Holding Ag
FORGING MACHINE
AT407617B
(en)
*
1999-10-07
2001-05-25
Gfm Beteiligungs & Man Gmbh
FORGING MACHINE
CN109248981A
(en)
*
2018-10-16
2019-01-22
南京迪威尔高端制造股份有限公司
Accumulator flow and Pressure behaviour compensation control system
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3031903A
(en)
*
1958-05-12
1962-05-01
Schloemann Ag
Control of hydraulic forging presses
CH388736A
(en)
*
1960-04-12
1965-02-28
Brignoli Silvio
High-speed hammer form forging machine
DE1230651B
(en)
*
1960-07-21
1966-12-15
Schloemann Ag
Device for controlling open-die forging presses with travel-dependent switching of the valves
AT235113B
(en)
*
1963-05-20
1964-08-10
Ges Fertigungstechnik & Maschb
Forging machine
US3222912A
(en)
*
1963-09-09
1965-12-14
Cincinnati Milling Machine Co
Swaging machine with adjustable stroke
US3415105A
(en)
*
1966-04-19
1968-12-10
Bliss E W Co
Apparatus for forming sheet metal containers
DE1301790B
(en)
*
1966-09-30
1969-08-28
Sack Gmbh Maschf
Forging machine
DE1812169A1
(en)
*
1968-12-02
1970-06-18
Sack Gmbh Maschf
Forging machine
DE1908362A1
(en)
*
1969-02-20
1970-09-10
Sack Gmbh Maschf
Forging machine with adjustable forging strings
1972
1972-02-18
DE
DE2207717A
patent/DE2207717C3/en
not_active
Expired
1973
1973-02-08
AT
AT112073A
patent/AT322327B/en
not_active
IP Right Cessation
1973-02-09
GB
GB661173A
patent/GB1365654A/en
not_active
Expired
1973-02-14
FR
FR7306388A
patent/FR2172431B3/fr
not_active
Expired
1973-02-16
IT
IT20540/73A
patent/IT979232B/en
active
1973-02-16
US
US00333378A
patent/US3841125A/en
not_active
Expired – Lifetime
1973-02-19
JP
JP2006573A
patent/JPS5725294B2/ja
not_active
Expired
Also Published As
Publication number
Publication date
AT322327B
(en)
1975-05-12
DE2207717C3
(en)
1975-10-16
DE2207717A1
(en)
1973-08-23
DE2207717B2
(en)
1975-02-13
JPS4893564A
(en)
1973-12-04
IT979232B
(en)
1974-09-30
FR2172431A1
(en)
1973-09-28
JPS5725294B2
(en)
1982-05-28
FR2172431B3
(en)
1976-02-13
US3841125A
(en)
1974-10-15
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Legal Events
Date
Code
Title
Description
1975-01-15
PS
Patent sealed [section 19, patents act 1949]
1981-02-11
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1983-09-28
PCNP
Patent ceased through non-payment of renewal fee
