ATE123997T1 - DEVICE FOR DETECTING PRINTING DEFECTS IN A ROTATING PRINTING PRESS. - Google Patents

DEVICE FOR DETECTING PRINTING DEFECTS IN A ROTATING PRINTING PRESS.

Info

Publication number
ATE123997T1
ATE123997T1 AT93101466T AT93101466T ATE123997T1 AT E123997 T1 ATE123997 T1 AT E123997T1 AT 93101466 T AT93101466 T AT 93101466T AT 93101466 T AT93101466 T AT 93101466T AT E123997 T1 ATE123997 T1 AT E123997T1
Authority
AT
Austria
Prior art keywords
camera
image
printing
detecting
rotating
Prior art date
Application number
AT93101466T
Other languages
German (de)
Inventor
Roger-Henri Roch
Original Assignee
Bobst Sa
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 Bobst Sa filed Critical Bobst Sa
Application granted granted Critical
Publication of ATE123997T1 publication Critical patent/ATE123997T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Handling Of Sheets (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Control Of Electric Motors In General (AREA)
  • Image Processing (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The misprint detection device in a rotary printing machine comprises at least one first camera (34) for capturing, with a first resolution, an image of a sample area (16) of the print (12) on a moving strip (10) and an electronic computerised device (39, 50) for digitising the image and for then comparing with a prerecorded reference image. The first camera (34) is associated with a second camera (24) for global capture of the print (12) with a second resolution lower than the first, and the comparative results from the second camera (24) are used in a feedback loop for control of the operation of the first camera (34). <IMAGE>
AT93101466T 1992-02-07 1993-01-30 DEVICE FOR DETECTING PRINTING DEFECTS IN A ROTATING PRINTING PRESS. ATE123997T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00357/92A CH687138A5 (en) 1992-02-07 1992-02-07 A print error detection in a rotary printing machine.

Publications (1)

Publication Number Publication Date
ATE123997T1 true ATE123997T1 (en) 1995-07-15

Family

ID=4185177

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93101466T ATE123997T1 (en) 1992-02-07 1993-01-30 DEVICE FOR DETECTING PRINTING DEFECTS IN A ROTATING PRINTING PRESS.

Country Status (9)

Country Link
EP (1) EP0554811B1 (en)
JP (1) JPH05269978A (en)
AT (1) ATE123997T1 (en)
BR (1) BR9300498A (en)
CA (1) CA2088816C (en)
CH (1) CH687138A5 (en)
DE (1) DE69300199T2 (en)
DK (1) DK0554811T3 (en)
ES (1) ES2073309T3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95888C (en) * 1993-04-26 1996-04-10 Valtion Teknillinen Printing quality control procedure
DE4432371B4 (en) * 1994-09-12 2004-12-09 Heidelberger Druckmaschinen Ag Useful printing and finishing processes
DE29507303U1 (en) * 1995-05-05 1995-06-22 MAN Roland Druckmaschinen AG, 63075 Offenbach Rotary printing machine with a video camera
DE19613083A1 (en) * 1996-04-02 1997-10-09 Koenig & Bauer Albert Ag Procedure for the qualitative assessment of processed material
DE810092T1 (en) * 1996-05-30 1998-09-03 Eikon Grafiche Srl Device and method for checking printed sheets
EP0816554B1 (en) * 1996-06-26 2003-04-02 Mahlo GmbH &amp; Co. KG Draft correcting method
DE19640023B4 (en) * 1996-06-26 2006-06-29 Mahlo Gmbh & Co Kg Fast, cost=effective adjustment of travelling patterned textile web - has row of optical units sensing pattern to yield signals fed to video processor for output signals used for distortion correction
US5809894A (en) * 1997-02-20 1998-09-22 Advanced Vision Technology, Ltd. System and method for registration control on-press during press set-up and printing
DE29804960U1 (en) * 1998-03-20 1999-01-07 Günther Louda GmbH, 82041 Oberhaching Device for checking sheets
FR2807705B1 (en) 2000-04-18 2002-12-13 Atel As ASSEMBLY AND METHOD FOR PRINTING ON A FLAT SUBSTRATE
DE10319771B4 (en) * 2003-05-02 2005-03-17 Koenig & Bauer Ag System for inspecting a printed image
DE102005004972A1 (en) 2005-02-03 2006-08-10 Windmöller & Hölscher Kg register process
DE102005018855B4 (en) * 2005-04-22 2010-01-28 Theta System Elektronik Gmbh Apparatus for inspecting printed products
CN100421935C (en) * 2005-09-12 2008-10-01 浙江华泰丝绸有限公司 Textile printing and dyeing screen screen quality inspection system and inspection method
DE602008004195D1 (en) 2007-09-21 2011-02-10 Bobst Sa Method for determining the surface quality of a carrier and associated machine for transforming the carrier
DE202010008084U1 (en) * 2010-07-15 2011-10-21 Eltromat Gmbh Device for monitoring the printing result in rotary printing machines
FI20106053A0 (en) * 2010-10-13 2010-10-13 Metso Automation Oy FRAMEWORK MONITORING SYSTEM AND SIMILAR METHOD OF MONITORING
WO2015074715A1 (en) * 2013-11-22 2015-05-28 Hewlett-Packard Indigo B.V. Printer with two scanners
DE102016107272B4 (en) 2016-04-20 2026-01-29 Beckhoff Automation Gmbh Device and method for testing an object
FI128735B (en) 2016-05-06 2020-11-13 Procemex Oy Ltd A machine vision method and system
CN108215464A (en) * 2017-12-19 2018-06-29 广东北玻臻兴玻璃技术工业有限公司 A kind of full-automatic glass printing equipment
DE102019109791A1 (en) * 2019-04-12 2020-10-15 Stephan Krebs Device for checking print images for a printing or finishing machine and method for validating inspection algorithms of a device for checking print images
DE102024122403A1 (en) * 2024-08-06 2026-02-12 Bundesdruckerei Gmbh Testing device and testing procedure for a colored printed image of a printing material supplied as a roll

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127831B1 (en) * 1983-06-02 1990-03-14 Web Printing Controls Co. Closed loop register control
JPS62223605A (en) * 1986-03-25 1987-10-01 Mutoh Ind Ltd Method for generating hole information on printed circuit board or the like
JPS6391253A (en) * 1986-10-03 1988-04-21 Sumitomo Heavy Ind Ltd Registering method of offset printer and its device
FI78025C (en) * 1987-08-31 1989-06-12 Valtion Teknillinen Procedure for quality control of printing

Also Published As

Publication number Publication date
ES2073309T3 (en) 1995-08-01
JPH05269978A (en) 1993-10-19
EP0554811A1 (en) 1993-08-11
CA2088816A1 (en) 1993-08-08
BR9300498A (en) 1993-08-10
DK0554811T3 (en) 1995-09-04
EP0554811B1 (en) 1995-06-21
DE69300199D1 (en) 1995-07-27
CH687138A5 (en) 1996-09-30
CA2088816C (en) 2000-03-28
DE69300199T2 (en) 1995-11-30

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Legal Events

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UEP Publication of translation of european patent specification