WO1990015679A1 - Laminage de pieces metalliques a usiner - Google Patents

Laminage de pieces metalliques a usiner Download PDF

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Publication number
WO1990015679A1
WO1990015679A1 PCT/GB1990/000936 GB9000936W WO9015679A1 WO 1990015679 A1 WO1990015679 A1 WO 1990015679A1 GB 9000936 W GB9000936 W GB 9000936W WO 9015679 A1 WO9015679 A1 WO 9015679A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolls
rolling
gap
roll
transducer
Prior art date
Application number
PCT/GB1990/000936
Other languages
English (en)
Inventor
Dennis Stubbs
Original Assignee
Davy Mckee (Sheffield) Limited
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 Davy Mckee (Sheffield) Limited filed Critical Davy Mckee (Sheffield) Limited
Publication of WO1990015679A1 publication Critical patent/WO1990015679A1/fr

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs
    • 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
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent

Definitions

  • This invention relates to the rolling of metal workpieces and, in particular, to the rolling of a multiplicity of identical workpieces where the workpieces are rolled, in turn, to produce identical products.
  • a particular, but not sole, application of the invention is to the rolling of workpieces to form products having a taper along their length, such products can eventually be used to construct leaf springs.
  • the workpieces are passed, in turn, between the rolls of a rolling mill and the gap between the rolls is adjusted during the rolling sequence on each workpiece by control means in accordance with a predetermined programme so that a taper of a predetermined form is rolled on each workpiece. It is important that the workpieces are identical as far as possible. In use, however, it has been found that, particularly after new rolls have been fitted in the mill, there may be inconsistent rolling between successive workpieces and, furthermore, there maybe inconsistency between successive workpieces which are rolled due to expansion of the rolls which takes place as the rolling temperature increases.
  • the workpieces are passed, in turn, between the rolls of a rolling mill and, during the rolling of each workpiece, the gap between the rolls is adjusted by control means in accordance with a predetermined programme to roll on the workpiece a taper which extends in the direction of the length of the workpiece, characterised in that a signal representing the gap between the rolls is supplied to the control means from a transducer on the mill and, after a predetermined number of workpieces have been rolled, the rolls are brought together into contact with each other to reduce the roll gap to zero and the output signal from the transducer is recalibrated, if necessary, to represent zero roll gap.
  • any inaccuracy which is shown to be present in the transducer is taken into account by the control means. If, for example, there is expansion of the rolls during a period of use, the gap measuring means which is connected between the bearing chock assemblies will not take the expansion of the rolls into account and the signal which is supplied to the control means will be in error. By periodically recalibrating the gap measuring means, the errors can be taken into account at the control means.
  • a rolling mill for rolling metal workpieces A to form a taper along their length is indicated by reference numeral 1.
  • the rolling mill has a pair of work rolls 2, 3 which engage the workpiece.
  • Each work roll is rotatably supported at its ends in a pair of bearing chock assemblies 2A, 3A, respectively.
  • an indirect method is employed whereby some form of electrical position transducer 4 is connected between the bearing chock assemblies 2A, 3A which support the rolls 2, 3.
  • the output signal from the transducer 4 indicates the size of the gap between the rolls.
  • the lower roll 3 and its bearing chock assembly 3A can be raised relative to the roll 2 in order to adjust the roll gap by means of a pair of wedge mechanisms 5 located one at each end of the rolls.
  • Each mechanism comprises a low friction roller wedge 6 having an inclined surface which engages with a correspondingly inclined surface 7 on the bearing chock assembly 3A of the roll.
  • the wedges 6 are connected to separate hydraulic dual-acting rams 9. Each ram 9 is controlled by a spool valve 10 and the spool of the valve is displaced by the action of a fluid-operated servo valve 11.
  • a micro-processor 13 serves to control the servo valve 11 so that the rams 9 cause the roll 3, by way of the wedge mechanisms 5, to adjust the gap between the rolls 2, 3 in accordance with a desired predetermined programme in order to roll a taper along the length of the workpiece A rolled between the rolls
  • a programme is built in to the micro-processor to control the roll gap in response to a signal fed to the micro-processor which represents the linear position of the workpiece with respect to the rolls 2,
  • Such a signal is obtained from a device indicated by reference 14 and the signal is supplied to the micro-processor on line 15.
  • a signal from the transducer 4 is fed to the micro-processor where the desired roll gap, indicated by the programme, is continuously compared with the roll gap measured by the transducer and, if necessary, correcting action is taken. If, in use, the transducer 4 does not accurately indicate the roll gap, the micro-processor 13 inaccurately controls the roll gap and the taper produced on the workpiece being rolled will be in error. For example, if the rolls 2, 3 need to be re- ground after a period of use, the output of the transducer 4 may well not be an accurate indication of the roll gap, since the diameter of the rolls will have been reduced.
  • the hydraulic system is operated to cause the roll 3 to be raised into engagement with the roll 2 in order to reduce the roll gap to zero.
  • the signal from the transducer 4 is then considered by the control means and, if it does not indicate that the roll gap is zero, the signal from the transducer 4 has to be recalibrated at the micro ⁇ processor to represent zero roll gap.
  • the rolls will expand as they become heated and, as the transducer 4 measures the separation of the bearing chock assemblies of the rolls, the signal from the transducer 4 will not take into account the roll expansion.
  • the rolls are brought into low pressure contact with each other, without, of course, material being present between them, and the output of the transducer is recalibrated, if necessary.
  • the pressure between the rolls is insufficient to distort the rolls and is repeatable, i.e., the same low pressure can be obtained each time the rolls are brought together.
  • the transducer 4 may be a 13 bit absolute encoder sold by Ferranti (UK) Ltd. of London, England.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

Afin de laminer un cône sur une pièce à usiner, on règle pendant cette opération le vide entre les cylindres d'un laminoir. Un transducteur indique les dimensions de ce vide et, de temps à autre, les cylindres sont amenés en contact l'un avec l'autre pour réduire ce vide à zéro et le signal de sortie émis par le transducteur est recalibré, si nécessaire, pour représenter un vide égal à zéro.
PCT/GB1990/000936 1989-06-19 1990-06-18 Laminage de pieces metalliques a usiner WO1990015679A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898914011A GB8914011D0 (en) 1989-06-19 1989-06-19 A rolling of metalwork pieces
GB8914011.5 1989-06-19

Publications (1)

Publication Number Publication Date
WO1990015679A1 true WO1990015679A1 (fr) 1990-12-27

Family

ID=10658656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000936 WO1990015679A1 (fr) 1989-06-19 1990-06-18 Laminage de pieces metalliques a usiner

Country Status (2)

Country Link
GB (1) GB8914011D0 (fr)
WO (1) WO1990015679A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533371A (en) * 1991-02-01 1996-07-09 Lauener Engineering, Ltd. Measurement device for roll gap control and process for its operation
EP0838313A1 (fr) * 1996-10-19 1998-04-29 TOPACK Verpackungstechnik GmbH Procédé et dispositif pour régler une paire d'outils coopérants
EP1454685A2 (fr) * 2003-03-04 2004-09-08 LANGENSTEIN & SCHEMANN GMBH Procédé pour former une pièce et machine de laminage
CN104259212A (zh) * 2014-09-23 2015-01-07 江苏东顺新能源科技有限公司 一种驱动滑块、辊间隙调节装置及板带轧机
CN104259212B (zh) * 2014-09-23 2017-01-04 江苏东顺新能源科技有限公司 一种驱动滑块、辊间隙调节装置及板带轧机
CN107583961A (zh) * 2017-10-16 2018-01-16 辽宁科技大学 一种冷连轧机无带钢辊缝标定控制方法
WO2019057254A1 (fr) * 2017-09-19 2019-03-28 Mouentech I/S V/Phillip Larsen & Ole Bastian Riber Appareil pour tracer, poinçonner ou estamper
WO2024058897A1 (fr) * 2022-09-14 2024-03-21 Paper Converting Machine Company Dispositif de revêtement et étalonnage de rouleau de traitement de dispositif de stratification par gaufrage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081652A (en) * 1955-11-30 1963-03-19 Westinghouse Electric Corp Taper rolling mill control
GB1089332A (en) * 1963-09-30 1967-11-01 British Iron Steel Research Improvements in and relating to shaped rolling
GB2050222A (en) * 1979-06-15 1981-01-07 Nhk Spring Co Ltd A method for manufacturing a taper spring
JPS59229212A (ja) * 1983-06-10 1984-12-22 Hitachi Ltd 圧延ロ−ルの零調芯方法
JPS60141320A (ja) * 1983-12-28 1985-07-26 Kawasaki Steel Corp 条鋼圧延機におけるロ−ル間隙の設定方法
JPS61206514A (ja) * 1985-03-11 1986-09-12 Kawasaki Steel Corp マンドレルミルの圧延制御方法
JPH06195716A (ja) * 1992-12-28 1994-07-15 Mitsubishi Electric Corp 光ディスク装置およびその記録パワーの設定方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081652A (en) * 1955-11-30 1963-03-19 Westinghouse Electric Corp Taper rolling mill control
GB1089332A (en) * 1963-09-30 1967-11-01 British Iron Steel Research Improvements in and relating to shaped rolling
GB2050222A (en) * 1979-06-15 1981-01-07 Nhk Spring Co Ltd A method for manufacturing a taper spring
JPS59229212A (ja) * 1983-06-10 1984-12-22 Hitachi Ltd 圧延ロ−ルの零調芯方法
JPS60141320A (ja) * 1983-12-28 1985-07-26 Kawasaki Steel Corp 条鋼圧延機におけるロ−ル間隙の設定方法
JPS61206514A (ja) * 1985-03-11 1986-09-12 Kawasaki Steel Corp マンドレルミルの圧延制御方法
JPH06195716A (ja) * 1992-12-28 1994-07-15 Mitsubishi Electric Corp 光ディスク装置およびその記録パワーの設定方法

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
Japanese Patent Gazette, Sections General/Mechanical, Week 7239, Accession No. 72-62287T(39), Derwent Publications Ltd, (London, GB), & JP-A-47017648 (Ishikawajima Harima Heavy) 9 September 1972 *
PATENT ABSTRACTS OF JAPAN, Vol. 10, No. 273 (M-518) (2329), 17 September 1986; & JP-A-6195716 (Nippon Steel Corp.) 14 May 1986 *
PATENT ABSTRACTS OF JAPAN, Vol. 11, No. 39 (M-559) (2486), 5 February 1987; & JP-A-61206514 (Kawasaki Steel Corp.) 12 September 1986 *
PATENT ABSTRACTS OF JAPAN, Vol. 9, No. 107 (M-378) (1830), 11 May 1985; & JP-A-59229212 (Hitachi Seisakusho K.K.) 22 December 1984 *
PATENT ABSTRACTS OF JAPAN, Vol. 9, No. 303 (M-434) (2026), 30th November 1985; & JP-A-60141320 (Kawasaki Seitestsu K.K.) 26 July 1985 *
Soviet Inventions Illustrated, Sections General/Mechanical, Week 8923, 19 July 1989, Accession No. 89-171729/23, Derwent Publications Ltd, (London, GB), & Su, A, 1419779 (Ferrous Metallurgy Inst.) 30 August 1988 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533371A (en) * 1991-02-01 1996-07-09 Lauener Engineering, Ltd. Measurement device for roll gap control and process for its operation
EP0838313A1 (fr) * 1996-10-19 1998-04-29 TOPACK Verpackungstechnik GmbH Procédé et dispositif pour régler une paire d'outils coopérants
EP1454685A2 (fr) * 2003-03-04 2004-09-08 LANGENSTEIN & SCHEMANN GMBH Procédé pour former une pièce et machine de laminage
EP1454685A3 (fr) * 2003-03-04 2005-07-13 LANGENSTEIN & SCHEMANN GMBH Procédé pour former une pièce et machine de laminage
CN104259212A (zh) * 2014-09-23 2015-01-07 江苏东顺新能源科技有限公司 一种驱动滑块、辊间隙调节装置及板带轧机
CN104259212B (zh) * 2014-09-23 2017-01-04 江苏东顺新能源科技有限公司 一种驱动滑块、辊间隙调节装置及板带轧机
WO2019057254A1 (fr) * 2017-09-19 2019-03-28 Mouentech I/S V/Phillip Larsen & Ole Bastian Riber Appareil pour tracer, poinçonner ou estamper
US11203049B2 (en) 2017-09-19 2021-12-21 Alunetic Aps Apparatus for flatting, punching or stamping
CN107583961A (zh) * 2017-10-16 2018-01-16 辽宁科技大学 一种冷连轧机无带钢辊缝标定控制方法
CN107583961B (zh) * 2017-10-16 2018-11-16 辽宁科技大学 一种冷连轧机无带钢辊缝标定控制方法
WO2024058897A1 (fr) * 2022-09-14 2024-03-21 Paper Converting Machine Company Dispositif de revêtement et étalonnage de rouleau de traitement de dispositif de stratification par gaufrage

Also Published As

Publication number Publication date
GB8914011D0 (en) 1989-08-09

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