GB1275424A - Pressdown system for rolling mill - Google Patents

Pressdown system for rolling mill

Info

Publication number
GB1275424A
GB1275424A GB23818/69A GB2381869A GB1275424A GB 1275424 A GB1275424 A GB 1275424A GB 23818/69 A GB23818/69 A GB 23818/69A GB 2381869 A GB2381869 A GB 2381869A GB 1275424 A GB1275424 A GB 1275424A
Authority
GB
United Kingdom
Prior art keywords
piston
signal
adjustable
roll
motor
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
GB23818/69A
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.)
Textron Inc
Original Assignee
Textron Inc
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 Textron Inc filed Critical Textron Inc
Publication of GB1275424A publication Critical patent/GB1275424A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

1275424 Rolling mills TEXTRON Inc 9 May 1969 [29 May 1968] 23818/69 Heading B3M [Also in Division G3] A rolling mill screwdown includes a double acting piston 13 acting on an adjustable roll 11 the piston being supplied with fluid to provide a constant position of the piston, and hence the roll. Any movement of the piston from a desired position leads to a core 18 moving relative to a coil 19, and an error signal being produced. The signal causes a servo valve 28 to reset the piston to its desired position. The roll gap of the mill is adjustable by moving the coil 19 by a stepping motor 20. The motor signal originates from a unit 21 responsive to an automatic gauge control system. To operate the screwdown to maintain a constant pressure acting on the piston, the switch 33 is opened, switches 31 and 32 closed, and the valve 30 assumes the position shown. A control signal for the servo valve 28 is compounded from a signal from a pressure transducer 34 and a signal from a reference potentiometer 35 which is adjustable by the motor 20.
GB23818/69A 1968-05-29 1969-05-09 Pressdown system for rolling mill Expired GB1275424A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73299968A 1968-05-29 1968-05-29
US23650172 USRE28248E (en) 1968-05-29 1972-03-20 Screwdown system for rolling mill

Publications (1)

Publication Number Publication Date
GB1275424A true GB1275424A (en) 1972-05-24

Family

ID=26929839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23818/69A Expired GB1275424A (en) 1968-05-29 1969-05-09 Pressdown system for rolling mill

Country Status (5)

Country Link
US (2) US3566638A (en)
BE (1) BE733708A (en)
DE (1) DE1927331A1 (en)
FR (1) FR2009602A1 (en)
GB (1) GB1275424A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420501A1 (en) * 1984-06-01 1985-12-05 Mannesmann AG, 4000 Düsseldorf ROLLER CONTROL INDICATOR
EP3150292A1 (en) * 2015-10-02 2017-04-05 Primetals Technologies Austria GmbH Positioning device

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693385A (en) * 1969-09-29 1972-09-26 Ube Industries Fluid control system for selectively self-adjusting mill reduction force or interworking roll distance
US3736782A (en) * 1969-10-22 1973-06-05 Hitachi Ltd Thrusting devices for rolling mills
SE381830B (en) * 1971-11-17 1975-12-22 Morgaardshammar Ab KIT TO PRE-TENSION A DUOVAL COUPLE FOR HOT OR COLD ROLLING AND DEVICE FOR PERFORMING THE KIT
DE2346543C3 (en) * 1973-09-15 1980-04-03 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Five-roll calender for the production of thermoplastic films
US3936258A (en) * 1974-01-30 1976-02-03 Intercole Automation, Inc. Calender
CA1054763A (en) * 1974-10-31 1979-05-22 William J. Bonner Method and apparatus for embossing sheets
US3974672A (en) * 1975-09-19 1976-08-17 Herbst John F Mill hydraulic screw-down
US4006617A (en) * 1975-11-24 1977-02-08 The Boeing Company Method and apparatus for roll forming tapered structural members
GB1521570A (en) * 1976-11-24 1978-08-16 Ch Poli I Im Lenin Komsomol Automatic adjustment of the roll gap in a mill stand
US4283930A (en) * 1977-12-28 1981-08-18 Aichi Steel Works Limited Roller-dies-processing method and apparatus
US4289013A (en) * 1979-08-29 1981-09-15 Textron, Inc. Crown control for rolling mill
US4471639A (en) * 1982-11-01 1984-09-18 E. W. Bliss Company, Inc. Roll orientation control system for straightening machines
DE3840016A1 (en) * 1988-11-26 1990-05-31 Schloemann Siemag Ag METHOD FOR LEVELING SHEETS, STRIPS, TABLES, PROFILES, CARRIERS ETC.
US5179851A (en) * 1990-12-14 1993-01-19 T. Sendzimir, Inc. Crown adjustment control system for cluster mills
US5575186A (en) * 1993-10-06 1996-11-19 Peddinghaus Corporation Machine tool stroke control system
US20040089045A1 (en) * 2001-04-20 2004-05-13 Abbey Nelson D. Compression assembly for forming rolls
DE10243677A1 (en) * 2002-09-20 2004-04-01 Sms Demag Ag Device for bending rollers in a multiple roller rolling mill comprises a vertical positioning unit assigned to bending blocks of one roll stand, to a plunger cylinder and to the bending blocks of the opposite-lying roll stand
DE102004039494A1 (en) * 2003-11-19 2005-06-23 Sms Demag Ag Adjusting cylinders in rolling stands, among others in vertical upsetting frames
US8091817B2 (en) * 2009-12-11 2012-01-10 Flsmidth A/S Milling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420501A1 (en) * 1984-06-01 1985-12-05 Mannesmann AG, 4000 Düsseldorf ROLLER CONTROL INDICATOR
EP3150292A1 (en) * 2015-10-02 2017-04-05 Primetals Technologies Austria GmbH Positioning device
WO2017055189A1 (en) * 2015-10-02 2017-04-06 Primetals Technologies Austria GmbH Adjustment device
US11110498B2 (en) 2015-10-02 2021-09-07 Primetals Technologies Austria GmbH Adjustment device

Also Published As

Publication number Publication date
DE1927331A1 (en) 1969-12-04
US3566638A (en) 1971-03-02
BE733708A (en) 1969-11-03
USRE28248E (en) 1974-11-19
FR2009602A1 (en) 1970-02-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee