GB1355773A - Control apparatus for a web positioning system - Google Patents

Control apparatus for a web positioning system

Info

Publication number
GB1355773A
GB1355773A GB3785972A GB3785972A GB1355773A GB 1355773 A GB1355773 A GB 1355773A GB 3785972 A GB3785972 A GB 3785972A GB 3785972 A GB3785972 A GB 3785972A GB 1355773 A GB1355773 A GB 1355773A
Authority
GB
United Kingdom
Prior art keywords
web
pneumatic
valve
hydraulic
sensor
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
GB3785972A
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.)
ROCKFORD SERVO CORP
Original Assignee
ROCKFORD SERVO 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 ROCKFORD SERVO CORP filed Critical ROCKFORD SERVO CORP
Publication of GB1355773A publication Critical patent/GB1355773A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web by rollers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/04—Control of dimensions of material of the size of items, e.g. of particles
    • G05D5/06—Control of dimensions of material of the size of items, e.g. of particles 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

1355773 Registering webs ROCKFORD SERVO CORP 14 Aug 1972 [20 Sept 1971] 37859/72 Heading B8R [Also in Division G3] Control apparatus for laterally positioning with respect to a web path, a web engaging unit 10, e.g. a web roll stand from which a web is unwound and fed to a slitting roller 11, comprises an electrical, e.g. photo-electric, web position sensor 31, a valve operator 48, 49 responsive to the electrical signals from the sensor 31 to move a pneumatic valve 55 for controlling the fluid pressure applied by a pneumatic pump 75 to a pressure responsive wall 67 of a pneumatic operator 33, and an hydraulic servovalve 34 actuated by the movable wall 67 for reversibly supplying hydraulic fluid to an hydraulic motor 35 which moves the web engaging unit 10. Alternatively, the web engaging unit may be a web processing unit, e.g. the roller 11, but in either case correct register is obtained between the web and unit. The photoelectric sensor may detect deviations from a printed line L or other matter on the web, a pneumatic web edge sensor 36 being optionally cut into the pneumatic control circuit when required by electrically operated valves 116, 117. Additionally, a pneumatic roll stand position sensor 37 or a pneumatic manual valve may be cut in when required. The photo-electric sensor may be of the reflection or transmission type. The electrical valve operator comprises a coil 48 which attracts a spring biased arm 55 from the orifice of a pneumatic conduit 59 for reducing the pressure applied to the wall 67 by pump 75 via conduits 77, 81. The wall 67 is connected to a valve element of the hydraulic servo-valve 34, the element having spaced spools 64a, 64b which control the hydraulic flow from an inlet conduit 87, connected to an hydraulic pump 85, to outlet conduits 92a, 92b connected to the motor 35, the element normally being held in the null position by a spring 98 adjustable by a screw 99, the servo-valve 34 is held in an hydraulic fluid reservoir tank 61.
GB3785972A 1971-09-20 1972-08-14 Control apparatus for a web positioning system Expired GB1355773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18170071A 1971-09-20 1971-09-20

Publications (1)

Publication Number Publication Date
GB1355773A true GB1355773A (en) 1974-06-05

Family

ID=22665411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3785972A Expired GB1355773A (en) 1971-09-20 1972-08-14 Control apparatus for a web positioning system

Country Status (5)

Country Link
US (1) US3767131A (en)
JP (1) JPS5318791B2 (en)
CA (1) CA973576A (en)
DE (1) DE2244809C3 (en)
GB (1) GB1355773A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496407A (en) * 1983-11-28 1985-01-29 Springs Industries, Inc. Apparatus and process for ultrasonically cutting off predetermined widths of selvages and sealing the cut edges of textile fabric
DE3726605A1 (en) * 1987-08-10 1989-02-23 Rexroth Mannesmann Gmbh ARRANGEMENT FOR CONTROLLING THE STROKE OF TWO LIFT CYLINDERS
US5072414A (en) * 1989-07-31 1991-12-10 Accuweb, Inc. Ultrasonic web edge detection method and apparatus
US5274573A (en) * 1989-07-31 1993-12-28 Accuweb, Inc. Ultrasonic web edge detection method and apparatus
DE102004000034A1 (en) * 2004-10-26 2006-04-27 Voith Paper Patent Gmbh Separating device for separation of material coil e.g. paper or board coil in many partial coils has monitoring device which is arranged in central area to monitor partial coils
US8616488B2 (en) * 2008-05-28 2013-12-31 Applied Materials, Inc. Automatic edge guide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728533A (en) * 1953-10-30 1955-12-27 Jones & Laughlin Steel Corp Strip coiling apparatus
US3098595A (en) * 1962-02-26 1963-07-23 Fife Mfg Company Dithering servo valve and web guide system
US3284015A (en) * 1964-04-13 1966-11-08 Rosfor Mills Corp Web registration and tensioning means
US3341099A (en) * 1964-11-24 1967-09-12 H G Weber And Company Inc Fluid operated sensing head
US3310942A (en) * 1965-07-26 1967-03-28 Wood Newspaper Mach Corp Air pump device

Also Published As

Publication number Publication date
US3767131A (en) 1973-10-23
JPS4837594A (en) 1973-06-02
DE2244809C3 (en) 1975-08-21
DE2244809A1 (en) 1973-04-05
DE2244809B2 (en) 1975-01-16
CA973576A (en) 1975-08-26
JPS5318791B2 (en) 1978-06-16

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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