GB1141241A - Tension member position regulating system - Google Patents

Tension member position regulating system

Info

Publication number
GB1141241A
GB1141241A GB11919/67A GB1191967A GB1141241A GB 1141241 A GB1141241 A GB 1141241A GB 11919/67 A GB11919/67 A GB 11919/67A GB 1191967 A GB1191967 A GB 1191967A GB 1141241 A GB1141241 A GB 1141241A
Authority
GB
United Kingdom
Prior art keywords
tension
control system
lever
motor
output
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
GB11919/67A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1141241A publication Critical patent/GB1141241A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
    • G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • D21F1/365—Guiding mechanisms for controlling the lateral position of the screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1,141,241. Automatic control of moving strip. WESTINGHOUSE ELECTRIC CORP. March 14, 1967 [March 29, 1966], No. 11919/67. Heading G3R. In a system for automatically controlling the tension of a motor-driven travelling strip, variations of tension are corrected by error signals, derived from angular movement of a member pressing against the strip, which modify the datum of a closed loop automatic speed control system for the motor and are limited to a small value until the member nears its desired position. As shown, tension is applied to a travelling paper web 10 by a roller 22 carried by a lever 24 to which a constant force is applied by a pneumatic ram 40. With switches 138, 140 closed, variations in tension from a desired value corresponding to a vertical position of lever 24 produce movements of the lever which are detected by a selsyn transmitter 114 the rectified output V 3 of which corresponds in magnitude and polarity to the magnitude and sense of tension error. This output is applied through PI regulators 104, 80 to correct the tension by varying the datum of an automatic speed control system for a motor 18 driving rollers 16 transporting tape 10. The speed control system compares the output of a tachometer generator 100 with the output of a manually operated reference potentiometer 92 so that any difference is applied through regulator 80, a limiter 91, and another PI regulator 54 to stabilize the speed by varying the datum of an automatic current control system for a D.C. generator 58 supplying motor 18. The current control system feeds back the voltage across a series resistor 74 through a magnetic amplifier 90 to the input of regulator 54 which controls the generator field excitation through semi-conductor controlled rectifiers 64. If the tension error lies between predetermined limits in either sense, relays 156, 172 apply such bias to a limiter 144 that limiting of the control signal is small but, if the tension error is greater, it is effective through an amplifier 190 or 194 to cause the relays to operate so that there is considerable limiting of the control signal. This permits starting up under speed control only with switches 138, 140 open and then closing them without undue shock, regardless of the position of lever 24, since tension correction will proceed slowly until tension lies between the predetermined limits.
GB11919/67A 1966-03-29 1967-03-14 Tension member position regulating system Expired GB1141241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US538269A US3419771A (en) 1966-03-29 1966-03-29 Tension member position regulating system utilizing a variable limiter

Publications (1)

Publication Number Publication Date
GB1141241A true GB1141241A (en) 1969-01-29

Family

ID=24146190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11919/67A Expired GB1141241A (en) 1966-03-29 1967-03-14 Tension member position regulating system

Country Status (4)

Country Link
US (1) US3419771A (en)
JP (1) JPS4610091B1 (en)
FR (1) FR1515730A (en)
GB (1) GB1141241A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181118B (en) * 1985-10-02 1989-10-04 Colgate Palmolive Co Tension controller

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519903A (en) * 1967-09-05 1970-07-07 Westinghouse Electric Corp System for controlling a strip material roll as a function of speed or tension of traveling strip material
US3562612A (en) * 1968-10-21 1971-02-09 Westinghouse Electric Corp Thyristor powered reversible dual motor drive with voltage and current feedback
JPS5542401B2 (en) * 1973-10-17 1980-10-30
US4025009A (en) * 1975-01-20 1977-05-24 Johns-Manville Corporation Blanket or sheet winding apparatus
CH588734A5 (en) * 1975-02-06 1977-06-15 Contraves Ag
US4347993A (en) * 1979-11-06 1982-09-07 W. J. Industries, Incorporated Tension monitor means and system
EP0216964A1 (en) * 1985-08-27 1987-04-08 Hiroshi Kataoka Take-out/take-up tension control apparatus
JPH04263155A (en) * 1991-01-11 1992-09-18 Alps Electric Co Ltd Tension controller of tape player

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419812A (en) * 1943-03-31 1947-04-29 Rca Corp Servo mechanism circuits
US2474620A (en) * 1947-04-12 1949-06-28 Cutler Hammer Inc Coiling machine controller
US3206663A (en) * 1962-11-29 1965-09-14 Cincinnati Milling Machine Co Machine tool position control servomechanism with positioning rate control
US3324363A (en) * 1964-04-30 1967-06-06 Westinghouse Electric Corp Motor control system for speed and tension of moving elongate material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181118B (en) * 1985-10-02 1989-10-04 Colgate Palmolive Co Tension controller

Also Published As

Publication number Publication date
JPS4610091B1 (en) 1971-03-15
US3419771A (en) 1968-12-31
FR1515730A (en) 1968-03-01

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