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FR2374680A1 - Multistage reducing apparatus control system - in which speeds of successive reducing stages are programmed - Google Patents

Multistage reducing apparatus control system - in which speeds of successive reducing stages are programmed

Info

Publication number
FR2374680A1
FR2374680A1 FR7737665A FR7737665A FR2374680A1 FR 2374680 A1 FR2374680 A1 FR 2374680A1 FR 7737665 A FR7737665 A FR 7737665A FR 7737665 A FR7737665 A FR 7737665A FR 2374680 A1 FR2374680 A1 FR 2374680A1
Authority
FR
France
Prior art keywords
reducing
stages
signals
appts
cross
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.)
Withdrawn
Application number
FR7737665A
Other languages
French (fr)
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.)
Marshall Richards Barcro Ltd
Original Assignee
Marshall Richards Barcro Ltd
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
Priority claimed from US05/770,261 external-priority patent/US4079609A/en
Application filed by Marshall Richards Barcro Ltd filed Critical Marshall Richards Barcro Ltd
Publication of FR2374680A1 publication Critical patent/FR2374680A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • H02P5/51—Direct ratio control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Control Of Metal Rolling (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Metal Rolling (AREA)

Abstract

Elongate material is continuously advanced through a number of successive material reducing stages to be progressively reduced in cross section area. A number of separate reducing stage signals are manually set to represent the elative cross section areas of the material at each reducing stage. Speed reference signals are generated in relation to the ratios of the required cross sectional area of the material at one stage relative to the required cross-sectional area at each of the other stages, and used in conjunction with signals from the stages to generate speed control signals for those stages. Used in metal strip rolling mills or wire drawing appts. Allows more precise control of the reducing appts. to prevent breakage or damage to the material or appts. during start up and normal operation, over a wide range of material sizes.
FR7737665A 1976-12-14 1977-12-14 Multistage reducing apparatus control system - in which speeds of successive reducing stages are programmed Withdrawn FR2374680A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5205776 1976-12-14
US05/770,261 US4079609A (en) 1976-12-14 1977-02-18 Control system for multiple stage reducing apparatus

Publications (1)

Publication Number Publication Date
FR2374680A1 true FR2374680A1 (en) 1978-07-13

Family

ID=26266984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737665A Withdrawn FR2374680A1 (en) 1976-12-14 1977-12-14 Multistage reducing apparatus control system - in which speeds of successive reducing stages are programmed

Country Status (5)

Country Link
JP (1) JPS53105688A (en)
CA (1) CA1099371A (en)
FR (1) FR2374680A1 (en)
IT (1) IT1117149B (en)
MX (1) MX4735E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009732A1 (en) * 1990-03-27 1991-10-02 Herborn & Breitenbach METHOD FOR CONTROLLING AND REGULATING THE DRIVE SPEED OF DRAWING DISCS OF A WIRE DRAWING MACHINE WORKING IN STRAIGHT EXTRACTION

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722772Y2 (en) * 1979-09-17 1982-05-17
JPS5653817A (en) * 1979-10-08 1981-05-13 Toshiba Corp Multistage wire drawing method
CN109317526B (en) * 2018-12-11 2024-11-08 珠海桑贝思精密科技有限公司 Wire drawing device and wire drawing machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU172391A1 (en) * Новосибирский научно исследовательский электротехнический инст DEVICE FOR CALLING SPEEDS OF MAIN DRIVES OF CONTINUOUS ROLLING MILL

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU172391A1 (en) * Новосибирский научно исследовательский электротехнический инст DEVICE FOR CALLING SPEEDS OF MAIN DRIVES OF CONTINUOUS ROLLING MILL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009732A1 (en) * 1990-03-27 1991-10-02 Herborn & Breitenbach METHOD FOR CONTROLLING AND REGULATING THE DRIVE SPEED OF DRAWING DISCS OF A WIRE DRAWING MACHINE WORKING IN STRAIGHT EXTRACTION

Also Published As

Publication number Publication date
JPS53105688A (en) 1978-09-13
CA1099371A (en) 1981-04-14
MX4735E (en) 1982-08-24
IT1117149B (en) 1986-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse