GB815648A - Improvements in mechanism for the control of strip materials - Google Patents

Improvements in mechanism for the control of strip materials

Info

Publication number
GB815648A
GB815648A GB86456A GB86456A GB815648A GB 815648 A GB815648 A GB 815648A GB 86456 A GB86456 A GB 86456A GB 86456 A GB86456 A GB 86456A GB 815648 A GB815648 A GB 815648A
Authority
GB
United Kingdom
Prior art keywords
control
mirror
loop
gear
box
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
GB86456A
Inventor
Ronald William Taylor
Arthur James Hunter
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.)
WH Sanders Electronics Ltd
Original Assignee
WH Sanders Electronics Ltd
Filing date
Publication date
Application filed by WH Sanders Electronics Ltd filed Critical WH Sanders Electronics Ltd
Publication of GB815648A publication Critical patent/GB815648A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/021—Control or correction devices in association with moving strips
    • B21D43/022—Loop-control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

815,648. Automatic strip feed control systems. SANDERS (ELECTRONICS) Ltd., W. H. Jan. 9, 1957 [Jan. 10, 1956], No. 864/56. Class 38 (4). Apparatus for the control of movement of strip material 1, such as sheet metal being fed to a shearing machine, comprises a photo-cell 5 arranged to receive light indirectly from a source 3 by reflection in mirror 6, the mirror being rotated by a motor 8 through gear-box 9 under control of a servoamplifier 15 to an angle representing the position of the bottom of the loop. Also rotated by the gear-box 9 is the slider 11 of potentiometer 12 which then supplies a signal corresponding to the loop position to amplifier 29, and tacho-generator 13 driven by motor 8 supplies a signal dependent on the angular speed of the mirror and hence on the speed of movement of the bottom of the loop. These signals are each applied to control windings of a saturable reactor in amplifier 29, the current in the main winding of which controls two further reactors arranged in push-pull to control the direct currents in field windings 27 and 28. These windings control the output of booster generator 25 in the supply to motor 23 feeding the strip, so as to keep the loop size constant. In modified loop size sensing apparatus, the mirror 6 is omitted and the light source 3 adjusted vertically by gear-box 9 so that the photo-cell 5 can just " see " it.
GB86456A 1956-01-10 Improvements in mechanism for the control of strip materials Expired GB815648A (en)

Publications (1)

Publication Number Publication Date
GB815648A true GB815648A (en) 1959-07-01

Family

ID=1593495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB86456A Expired GB815648A (en) 1956-01-10 Improvements in mechanism for the control of strip materials

Country Status (1)

Country Link
GB (1) GB815648A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257518B (en) * 1965-07-13 1967-12-28 Wolfen Filmfab Veb Device for regulating the length of a horizontal loose loop formed by a band
FR2219483A1 (en) * 1973-02-23 1974-09-20 Sony Corp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257518B (en) * 1965-07-13 1967-12-28 Wolfen Filmfab Veb Device for regulating the length of a horizontal loose loop formed by a band
FR2219483A1 (en) * 1973-02-23 1974-09-20 Sony Corp

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