GB1076604A - Automatic device for quality sorting of sheet materials (mainly sheets of paper) - Google Patents

Automatic device for quality sorting of sheet materials (mainly sheets of paper)

Info

Publication number
GB1076604A
GB1076604A GB18082/64A GB1808264A GB1076604A GB 1076604 A GB1076604 A GB 1076604A GB 18082/64 A GB18082/64 A GB 18082/64A GB 1808264 A GB1808264 A GB 1808264A GB 1076604 A GB1076604 A GB 1076604A
Authority
GB
United Kingdom
Prior art keywords
photo
multipliers
sheets
paper
reject
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
GB18082/64A
Inventor
Vladimir Ivanovich Shchipunov
Alexandr Alexandrovich Nagibin
Anatoly Dmitrievich Belov
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.)
VSESOJUSNY NII GOZNAKA
Original Assignee
VSESOJUSNY NII GOZNAKA
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 to FR973530A priority Critical patent/FR1398216A/en
Application filed by VSESOJUSNY NII GOZNAKA filed Critical VSESOJUSNY NII GOZNAKA
Priority to GB18082/64A priority patent/GB1076604A/en
Publication of GB1076604A publication Critical patent/GB1076604A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Sorting Of Articles (AREA)

Abstract

1,076,604. Photo-electric flaw detection. VSESOJUSNY NAUCHNO-ISSLEDOVATELSKY INSTITUTE GOZNAKA. June 30, 1964, No. 18082/64. Heading G1A. Sheets of paper 2 are inspected by beams of light which are scanned across each side of the paper by mirror drums 16, 16a co-operating with photo-multipliers 22, 22a receiving light reflected from the sheets. Cylindrical lenses 19, 19a and 20, 20a are provided to focus the scanning and reflected beams respectively. A further photomultiplier 25 detects flaws that show up as a variation in the intensity of transmitted light. The width of scan is limited to the width of the sheets 2 by mirror masks 18, 18a which, when the scanning beam is outside these limits, reflects the beam to photo-multipliers 23, 23a to produce compensating signals for addition to the output of photo-multipliers 22, 22a to produce a steady D. C. level. The outputs of the photo-multipliers 22, 22a and 25 are analysed with regard to the amplitude of short duration variation signals and the dimensions of signals representing flaws along and across the sheet. The permissable amount of different types of flaw may be different. When a flaw is detected, a pulse is fed to a delay circuit which energizes reject means when the defective sheet has reached a reject station. The sensitization of the apparatus to detect flaws and the passage of a reject pulse through the delay circuit is controlled by sources of infrared radiation 29, 30 co-operating with photo-diodes 27, 28 to detect the passing sheets. The photo-multipliers are insensitive to infrared.
GB18082/64A 1964-06-30 1964-06-30 Automatic device for quality sorting of sheet materials (mainly sheets of paper) Expired GB1076604A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR973530A FR1398216A (en) 1964-06-30 1964-05-06 Automatic sorter for sheet materials according to their quality
GB18082/64A GB1076604A (en) 1964-06-30 1964-06-30 Automatic device for quality sorting of sheet materials (mainly sheets of paper)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18082/64A GB1076604A (en) 1964-06-30 1964-06-30 Automatic device for quality sorting of sheet materials (mainly sheets of paper)

Publications (1)

Publication Number Publication Date
GB1076604A true GB1076604A (en) 1967-07-19

Family

ID=10106353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18082/64A Expired GB1076604A (en) 1964-06-30 1964-06-30 Automatic device for quality sorting of sheet materials (mainly sheets of paper)

Country Status (2)

Country Link
FR (1) FR1398216A (en)
GB (1) GB1076604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147096A (en) * 1983-09-22 1985-05-01 Sick Optik Elektronik Erwin Optical fault seeking apparatus for a web

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3088876B1 (en) * 2015-04-28 2017-12-13 Mart S.r.l. Machine and method to detect a surface irregularity on a moving panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147096A (en) * 1983-09-22 1985-05-01 Sick Optik Elektronik Erwin Optical fault seeking apparatus for a web

Also Published As

Publication number Publication date
FR1398216A (en) 1965-05-07

Similar Documents

Publication Publication Date Title
CA1176341A (en) Method of and apparatus for compensating signal drift during container inspection
GB1471316A (en)
GB1030846A (en) Diagnostic apparatus
GB1473920A (en) Laser scanner flaw detection system
GB961727A (en) Improvements in and relating to checking of sheet material for optically detectable iregularities
US2429331A (en) Photoelectric apparatus for inspection of paper strips
GB1296784A (en)
US3331963A (en) Apparatus for optically detecting flaws in sheet material
GB1526930A (en) Process and apparatus for testing glass
GB1076604A (en) Automatic device for quality sorting of sheet materials (mainly sheets of paper)
GB1211463A (en) Method and apparatus for detecting and classifying faults in a sliver or a web of textile fibres
GB1328877A (en) Apparatus and method for optically inspecting the physical condition of a surface
GB1143243A (en) The testing of cables
GB1149518A (en) Improvements in and relating to the optical detection of irregularities in sheet material
GB963587A (en) A device for indicating marks and the like on a surface
US4310250A (en) Apparatus for monitoring for faults in translucent strip material
GB1484148A (en) Apparatus for determining the transverse position of a surface defect in a sheet material moving longitudinally
ES372098A1 (en) Radiation sensitive defect scanner for transparent materials
GB1124778A (en) Inspection and sorting of sheet materials by photoelectric means
GB1063479A (en) Improvements in and relating to the inspection of transparent or translucent containers
GB939489A (en) Photo-electric scanning device
GB1406296A (en) Method and apparatus for measuring optical irregularities in an article
JPS57128834A (en) Inspecting apparatus of foreign substance
GB2018985A (en) Detecting Flaws in Sheets
EP0014894A1 (en) Apparatus for monitoring for faults in translucent strip material