DK0554811T3 - Apparatus for detecting printing errors in a rotary printing machine - Google Patents

Apparatus for detecting printing errors in a rotary printing machine

Info

Publication number
DK0554811T3
DK0554811T3 DK93101466.6T DK93101466T DK0554811T3 DK 0554811 T3 DK0554811 T3 DK 0554811T3 DK 93101466 T DK93101466 T DK 93101466T DK 0554811 T3 DK0554811 T3 DK 0554811T3
Authority
DK
Denmark
Prior art keywords
camera
image
printing machine
detecting
errors
Prior art date
Application number
DK93101466.6T
Other languages
Danish (da)
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 DK0554811T3 publication Critical patent/DK0554811T3/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)
  • Image Processing (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Control Of Electric Motors In General (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>
DK93101466.6T 1992-02-07 1993-01-30 Apparatus for detecting printing errors in a rotary printing machine DK0554811T3 (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
DK0554811T3 true DK0554811T3 (en) 1995-09-04

Family

ID=4185177

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93101466.6T DK0554811T3 (en) 1992-02-07 1993-01-30 Apparatus for detecting printing errors in a rotary printing machine

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 (22)

* 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
EP0810092B1 (en) * 1996-05-30 2002-08-07 GRAFICHE EIKON S.r.l. Apparatus and method for checking printed sheets
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
EP0816554B1 (en) * 1996-06-26 2003-04-02 Mahlo GmbH &amp; Co. KG Draft correcting method
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 Detecting system and method for quality of textile dyeing and printing screen
EP2039513B1 (en) 2007-09-21 2010-12-29 Bobst S.A. Method for determining the surface quality of a support and machine for transforming the associated support
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 Track monitoring system and corresponding track monitoring method
WO2015074715A1 (en) * 2013-11-22 2015-05-28 Hewlett-Packard Indigo B.V. Printer with two scanners
DE102016107272A1 (en) 2016-04-20 2017-10-26 Beckhoff Automation Gmbh Concept for checking 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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3481595D1 (en) * 1983-06-02 1990-04-19 Wales R Langdon REGISTER CONTROL IN A CLOSED LOOP.
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
CH687138A5 (en) 1996-09-30
DE69300199T2 (en) 1995-11-30
DE69300199D1 (en) 1995-07-27
ES2073309T3 (en) 1995-08-01
BR9300498A (en) 1993-08-10
CA2088816A1 (en) 1993-08-08
JPH05269978A (en) 1993-10-19
ATE123997T1 (en) 1995-07-15
CA2088816C (en) 2000-03-28
EP0554811B1 (en) 1995-06-21
EP0554811A1 (en) 1993-08-11

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment