EP1153747A2 - Vorrichtung zur Verwaltung der innerhalb einer Druckmaschine ermittelten Druckfehler - Google Patents

Vorrichtung zur Verwaltung der innerhalb einer Druckmaschine ermittelten Druckfehler Download PDF

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Publication number
EP1153747A2
EP1153747A2 EP01110899A EP01110899A EP1153747A2 EP 1153747 A2 EP1153747 A2 EP 1153747A2 EP 01110899 A EP01110899 A EP 01110899A EP 01110899 A EP01110899 A EP 01110899A EP 1153747 A2 EP1153747 A2 EP 1153747A2
Authority
EP
European Patent Office
Prior art keywords
printing
support
database
faults
phase
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.)
Granted
Application number
EP01110899A
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English (en)
French (fr)
Other versions
EP1153747B1 (de
EP1153747A3 (de
Inventor
Daniel Frossard
Nathan Stern
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.)
Bobst Mex SA
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
Publication of EP1153747A2 publication Critical patent/EP1153747A2/de
Publication of EP1153747A3 publication Critical patent/EP1153747A3/de
Application granted granted Critical
Publication of EP1153747B1 publication Critical patent/EP1153747B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • 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

Definitions

  • the present invention relates to a device for managing printing faults detected in a printing machine delivering a printed product for the packaging industry from a medium such as continuous sheets or strips of paper, cardboard, or other material flexible like polyethylene for example.
  • the present invention essentially relates to a tool for assisting in the decision allowing in particular to visualize, for example in a form schematic, tabular or in the form of an image, the whole of a support such that a band marred by all its faults previously detected by a conventional device. Thanks to the application of different virtual filters, this tool allows to visualize several representative cases of the level of tape quality and to count and identify in each case all portions of tape covered with too marked defects that should be to eliminate, this even before taking an irreversible action of cutting and ejecting tape faults.
  • a first step we start by printing the tape to from a blank reel of a width which can generally contain several generally identical packaging imprints. The number of impressions thus arranged side by side over the width of the strip defines the number of tracks in this band.
  • the tape is dried and then examined by a device making it possible to detect and recognize and account for all types of printing faults it can present. These faults are identified in a Cartesian system and stored by the detection and localization device which records their position by in relation to an origin, in the longitudinal direction, and in relation to the different tracks they occupy, in the transverse direction.
  • the acknowledgment of any defect will cause intervention of the machine operator who will mark the approximate location where the defect was detected by the installation of a butterfly (cardboard tab) on the strip so that once the strip is rewound, the butterfly protrudes slightly from its edge and is easily spotted. This intervention can also be done through an automatic labeling machine. If necessary, the machine operator will even be forced to stop printing to remedy the possible cause of an emerging defect before it occurs become more tolerable. Once checked, the printed tape is then rewound for machines delivering a wound product, for example opposition to products presented in sheet form.
  • the second step in the conventional process is to take the printed reel and cut it lengthwise to form thereafter as many new small reels as there are tracks on the tape.
  • the printed tape will again be unwound gradually when introduced into a rotary cutter which will allow divide in the longitudinal direction along the line defined by the delimitation of tracks it contains.
  • the driver should watch carefully when approaching all the butterflies that were previously affixed to the tape.
  • the tape should be stopped at the arrival of each butterfly and the driver will be forced to find the fault found, find where it starts and where it ends before remove by two cross sections in the tracks concerned. Released of their deficient portion, the corresponding ends of these tracks will be glued with adhesive tape for example. All tracks will then simultaneously rewound before being delivered in the form of independent coils, to the customer who will proceed to the packaging of his products by unwinding each of these small coils in a third and last step.
  • Printed tapes can either be used as a base material for machines producing packaging produced in the form of elements in plate either be reworked and stored again as coils smaller for packaging products using rolls packaging. If the first category of products produced allows very easy handling, especially when it comes to eliminating and ejecting production line all the defective elements, we understand very well that it is not the same to accomplish such an operation from products stored as continuous strips. In the event that the final product of the packaging production is a continuous strip stored as coil it indeed becomes difficult and much more expensive to remove all portions of the tape that have been found to be defective. During the first stage, the elimination of such portions would require stopping complete printing machine, which of course would seriously hamper the production rate and could cause other successive problems printing during the always delicate phase of restarting the rotary.
  • the object of the present invention is therefore to provide a tool to assess the overall print quality of the tape and define, using different possible scenarios and even before undertaking an irreversible cutting action, all the portions that would be appropriate judiciously to delete as a priority from the maximum number of tape fittings accepted by the customer.
  • Figure 1 shows in schematic form the state of a part of a strip 1 from a rotary printing machine.
  • This band includes a primer 2 in its downstream part and two edge edges 3, 4 between which is printed a mosaic of patterns 5 left by the cylinder rotary machine printing.
  • the printed patterns can be identical or not but each of them alone will constitute a packaging after the final stage of production.
  • the patterns 5 are carefully aligned and form, in the case shown, three separate tracks 11, 12, 13.
  • Marks marking 14, which may be self-adhesive tabs for example, are affixed in either edge 3, 4 at intervals rigorously regular. Different printing faults 20, 21, 22 are shown schematically in this figure.
  • FIG. 2 gives a schematic representation of the main organs involved in the printing phase of strip 1, which phase is the first step in the packaging manufacturing process.
  • the continuous strip 1 scrolls from upstream to downstream in the direction of travel represented by the arrow 29.
  • This continuous strip passes successively through different stations, the most ordinary of which is an introductory station 31, of which the strip is issued, one or more printing and drying stations 32, a station 33 for detecting and locating printing faults, a traction station or group 34, allowing the belt to be tensioned and compensate for voltage fluctuations using a Walkman, and finally a receiving station 36 in which the continuous strip 1 is stored under in the form of a printed reel 37.
  • tape 1 may be marred by various printing defects 20, 21, 22 among which we can cite for example absences, surplus or splashing of ink, oil stains from a part of the machine, or from timing or markings which cause discrepancies between the impressions of the colors of base of the printed motif.
  • these defects evolve and grow over the printing to become excessive and intolerable.
  • a reading unit 40 consisting of at least minus a camera 41, whose field of vision is made clearly visible by a lighting device 42, and a measuring instrument 43 making it possible to synchronize the acquisition of the image with the scrolling of the tape 1.
  • the camera 41 is connected to a control unit 45 which takes account of these faults and this control unit is connected to a control monitor 44 which allows them to be viewed.
  • a pulse generator 46 connects schematically the printing and drying station 32 per unit command 45. This pulse generator 46 constitutes the station clock 33 for detecting and locating faults.
  • the measuring instrument 43 simply consisting of a rubberized roller entering, without sliding, in permanent contact with the band 1 and delivering between a thousand and two thousand pulses each turn roulette for example.
  • the pulses from generator 46 are transmitted to the unit 45 which, in combination with the pulses delivered by the measuring instrument 43 can thus locate on a virtual longitudinal axis, representative of the length of the strip 1, the abscissa at which a defect 20, 21, 22 will have been detected.
  • the camera 41 makes it possible to detect in which track 11, 12 or 13 are the faults encountered.
  • the control unit 45 is therefore thus able to identify, according to two perpendicular axes, the position of the defects 20, 21, 22 on the strip and to inventory them according to their characteristics and their rate of recurrence for example. All this information is stored in a database 47 connected to the control unit 45.
  • the origin of the axis longitudinal used to identify all printing faults is indicated by the first registration mark 14 affixed by a marking device 48 in the edge of the edge, 3, 4 of the strip 1.
  • a marking device 48 In order to limit errors systematic and improve the accuracy of fault identification, several marks 14 will be affixed to strip 1 at strictly intervals regular. These registration marks 14 will each constitute a new origin which will be taken as reference in the second stage of the process for developing the strip 1.
  • This device 48 can for example be a labeling machine controlled by control unit 45 according to pulses received both by the measuring instrument 43 and by the pulse generator 46.
  • Figure 3 is a schematic representation of the different organs involved in the strip 1 cutting phase, which phase is the second step in the packaging manufacturing process such as previously described.
  • the printed reel 37 previously issued from the reception station 36, is placed in a new introduction station 50.
  • the latter is located upstream of a second production line which allows successively to manage, according to the present invention, all data relating to printing faults 20, 21, 22, stored previously, then start cutting the printed tape 1 according to the best compromise evaluated by a device 51 for managing these defaults.
  • This device also makes it possible to control all the operations of cutting of the strip 1 which in the great majority of the time is carried out in the direction of its movement 29 by means of rotary blades of a longitudinal cutting station 52 and sporadically perpendicular to its direction of movement 29, by means of a device transverse cutting 53. It is during the longitudinal cutting that the tracks 11, 12, 13 will be separated from each other and that the edges of bank 3, 4 of strip 1 will be eliminated. These tracks have become independent are going to be finally wound up one last time in a second station reception 55 to form narrower coils 56, 57, 58 constituting the final product of this production line. It goes without saying, of course, that the number of these coils is a direct function of the number of tracks in the tape once printed.
  • the printing defect management device 51 comprises a unit for reading 60 connected to a management unit 65 and an interface 70 for managing stored data, placed between the database 47 and the management unit 65.
  • the reading unit 60 consists of two reading members, namely one detector 61 of registration marks 14 and a second measuring instrument 62 whose utility is perfectly identical to that of its counterpart 43 described previously.
  • detector 61 is to re-synchronize the identification of faults with the sometimes unstable running of the tape, thanks to detections registration marks 14 previously defined as fixed origins perfectly known.
  • the measuring instrument 62 is directly connected to the management unit 65 while the detector 61 is indirectly connected to it by through a second pulse generator 63. The latter aims to provide a digital synchronization top with each pass of a brand marking 14.
  • the management unit 65 constitutes the pilot element of the entire printing defect management device 51. She orders the advancement and the longitudinal cut of the strip 1, acting on the drive common of the introduction station 50, of the longitudinal cutting station 52 and the receiving station 55, but also drives the blade of the receiving station transverse cutting 53 in the event that the latter is automated.
  • the management unit 65 manages the operation of all these organs in function information it draws from the data management interface 70 relating to the faults treated.
  • This interface indeed includes a unit of treatment 71, comparable to a computer console. It is through this interface 70 that the machine operator can manage and process all information that has been previously collected in the database 47; the latter being connected to the processing unit 71.
  • the interactive dialogue between the machine operator and the processing unit 71 is done through an output device 72, such as a monitor, and an input device 73 can be a keyboard, a mouse or the tactile part of a screen by example.
  • the processing unit 71 is also connected to a bank of filters 74 the use of which is described below. Being composed of units forming a standard computer station, this interface 70 could advantageously be set back from the production line, in a control room away from the noise for example.
  • the operation of the fault management device 51 is as follows: Having access to all the information that describe in particular the type, importance and location of each of the defects 20, 21, 22 inventoried, the processing unit 71 is capable of returning all this data to the operator who can then view it on the monitor 72. This information may be presented to him in the form of an image or tabular or, like Figure 1, in schematic form more illustrative but always corresponding to the current state of the stored tape in the printed reel 37.
  • the management by the processing unit 71 of information recorded in the database 47 makes it possible to provide additional events arising from statistical results performed on the entire length of the strip.
  • This combination of information provides many advantages which will allow for example to quantify the overall tape print quality, view all areas reviews where the impression turns out to be of poor quality, and to simulate different splitting scenarios depending on the application of a certain number of virtual filters masking faults deemed to be of lesser importance.
  • the operator can have access to different tools computer which allow to create said virtual filters and then store them at will in the filter bank 74.
  • These virtual filters are presented usually in the form of a list of alphanumeric instructions decodable by a computer system. They group all the conditions which exclude the disclosure of defects defined as secondary according to selected criteria.
  • the application of one or more filters, on the data representative of the printing faults 20, 21, 22, allows to better define the ideal locations of the transverse cuts 24, 25 authorized by the customer in limited number. Knowing all the history printing of the reel 37, the operator will therefore be in the presence of a tool decision support allowing him to optimize the final quality of this coil.
  • the creation and choice of the most appropriate filters could be as well defined manually as chosen automatically through a search algorithm for example.
  • band 1 first scrolls under the measuring instrument 62 which records its footage from the origin of the longitudinal tracking system once that this has been recognized by the detector 61. This origin is defined the first time by the first registration mark 14 encountered, then successively incremented and replaced by each of the new brands marking 14 recognized as the tape 1 unfolds. In normal times, band 1 continues on its way to pass through the longitudinal cutting 52 before coming out in the form of strips whose width strictly corresponds to that of tracks 11, 12, 13.
  • the management unit 65 takes care of the data which are transmitted by the measuring instrument 62 while taking into account the number of registration marks 14 already encountered.
  • unity management sends a signal to the tape drive devices in the stations 50, 52, 55 and gradually stops the unwinding of the reel printed 37 so that the downstream cutout 24 provided on the strip 1 stops at the height of the transverse cutting device 53.
  • the latter can be made simply by a sharp instrument such as a blade, arranged perpendicular to the direction of movement of the strip, which will section the track (s) 11, 12, 13 with faults at the chosen location between two adjacent printing patterns 5.
  • the upstream part of band 1 will be then deflected to waste coils 54 which will store the tracks of all the portions of strip 23 which will have to be removed from strip 1.
  • the number of waste reels 54 being of course directly a function of the number of tracks on the tape.
  • the upstream cutting 25 will be carried out in the same way way. It is then enough to reconstruct the continuity of the tracks cut in strip 1 by joining the remaining upstream and downstream parts. Adhesive tape carefully affixed allows this joint to be made very simply.
  • the description of the device of the present invention refers to supports presented in the form of coils and continuous strips but it is quite obvious that these products can be very well substituted by discontinuous sheet elements stored in stack form for example.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Rotary Presses (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
EP01110899A 2000-05-11 2001-05-05 Vorrichtung zur Verwaltung der innerhalb einer Druckmaschine ermittelten Druckfehler Expired - Lifetime EP1153747B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00926/00A CH694160A5 (fr) 2000-05-11 2000-05-11 Dispositif de gestion des défauts d'impression détectés au sein d'une machine d'impression.
CH9262000 2000-05-11

Publications (3)

Publication Number Publication Date
EP1153747A2 true EP1153747A2 (de) 2001-11-14
EP1153747A3 EP1153747A3 (de) 2005-06-22
EP1153747B1 EP1153747B1 (de) 2008-10-15

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Application Number Title Priority Date Filing Date
EP01110899A Expired - Lifetime EP1153747B1 (de) 2000-05-11 2001-05-05 Vorrichtung zur Verwaltung der innerhalb einer Druckmaschine ermittelten Druckfehler

Country Status (12)

Country Link
US (1) US6606947B2 (de)
EP (1) EP1153747B1 (de)
JP (1) JP3442370B2 (de)
KR (1) KR100384048B1 (de)
CN (1) CN100572087C (de)
AT (1) ATE411173T1 (de)
AU (1) AU777405B2 (de)
BR (1) BR0101861A (de)
CA (1) CA2347413C (de)
CH (1) CH694160A5 (de)
DE (1) DE60136123D1 (de)
TW (1) TW487643B (de)

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WO2007115637A1 (de) * 2006-04-03 2007-10-18 Manroland Ag Gewichtete bogeningspektion
WO2015110213A1 (de) * 2014-01-27 2015-07-30 Akzenta Paneele + Profile Gmbh Verfahren und vorrichtung zur herstellung eines direkt bedruckten dekorpaneels unter verminderung von ausschuss aufgrund von druckfehlern
ITUB20159538A1 (it) * 2015-12-29 2017-06-29 Grafikontrol S P A Sistema per rilevare e tracciare difetti durante le fasi di lavorazione di materiali.
US10350938B2 (en) 2014-02-25 2019-07-16 Akzenta Paneele + Profile Gmbh Method for producing decorative panels
US10479134B2 (en) 2014-05-09 2019-11-19 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel
US10618346B2 (en) 2015-08-19 2020-04-14 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel

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US8799113B2 (en) * 2001-12-28 2014-08-05 Binforma Group Limited Liability Company Quality management by validating a bill of materials in event-based product manufacturing
US7035877B2 (en) * 2001-12-28 2006-04-25 Kimberly-Clark Worldwide, Inc. Quality management and intelligent manufacturing with labels and smart tags in event-based product manufacturing
US7032816B2 (en) * 2001-12-28 2006-04-25 Kimberly-Clark Worldwide, Inc. Communication between machines and feed-forward control in event-based product manufacturing
US20030193684A1 (en) * 2002-04-10 2003-10-16 Kendall David R. Method and system for diagnosing printing defects
US7516040B2 (en) * 2004-12-02 2009-04-07 Xerox Corporation System and method for automated detection of printing defects in an image output device
JP5032460B2 (ja) * 2005-03-16 2012-09-26 パンドウィット・コーポレーション 反転可能プリンターアッセンブリ
DE602007002780D1 (de) * 2007-02-01 2009-11-26 Abb Oy Verfahren zur Erstellung eines optimierten Schnittplans für ein streifenförmiges Material
DE102007041811A1 (de) * 2007-09-03 2009-03-05 Böwe Systec AG Vorrichtung und Verfahren zum Fördern einer Papierbahn
JP5233030B2 (ja) * 2007-10-22 2013-07-10 オセ−テクノロジーズ・ベー・ヴエー ウェブ処理装置
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KR101079451B1 (ko) * 2009-04-02 2011-11-03 삼성전기주식회사 그라비아 인쇄장치
DE102009023963A1 (de) * 2009-06-05 2010-12-09 Robert Bosch Gmbh Verfahren zum Bestimmen eines Qualitätsmaßes für ein von einer Bearbeitungsmaschine bearbeitetes Produkt
CN101692057B (zh) * 2009-09-29 2012-06-27 深圳市博泰印刷设备有限公司 对已印刷材料进行检测的方法及装置
US8243998B2 (en) * 2010-03-30 2012-08-14 Hewlett-Packard Development Company, L.P. Repeating band print artifact evaluation
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WO2012057803A1 (en) * 2010-10-30 2012-05-03 Hewlett-Packard Development Company, L.P. Machine-readable data pattern associated with physical defects on printable media supply
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EP2761863B1 (de) * 2011-09-27 2019-08-28 Hewlett-Packard Development Company, L.P. Erkennung von druckdefekten
JP2014071067A (ja) * 2012-10-01 2014-04-21 Dac Engineering Co Ltd 巻き替え検品方法、巻き替え検品装置及び巻き替え検品システム
JP6119188B2 (ja) * 2012-10-25 2017-04-26 凸版印刷株式会社 印刷物生産管理システム及び巻き替え機及びスリッター機
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DE102017108496B4 (de) * 2017-04-21 2023-06-29 Windmöller & Hölscher Kg Verfahren und Vorrichtungen sowie System zum Auf- und Abwickeln eines Wickels
US10642551B2 (en) 2017-07-14 2020-05-05 Georgia-Pacific Corrugated Llc Engine for generating control plans for digital pre-print paper, sheet, and box manufacturing systems
US11449290B2 (en) 2017-07-14 2022-09-20 Georgia-Pacific Corrugated Llc Control plan for paper, sheet, and box manufacturing systems
US11520544B2 (en) 2017-07-14 2022-12-06 Georgia-Pacific Corrugated Llc Waste determination for generating control plans for digital pre-print paper, sheet, and box manufacturing systems
US20190016551A1 (en) 2017-07-14 2019-01-17 Georgia-Pacific Corrugated, LLC Reel editor for pre-print paper, sheet, and box manufacturing systems
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EP0741027A2 (de) * 1995-05-04 1996-11-06 Heidelberger Druckmaschinen Aktiengesellschaft Vorrichtung zur Bildinspektion

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EP0741027A2 (de) * 1995-05-04 1996-11-06 Heidelberger Druckmaschinen Aktiengesellschaft Vorrichtung zur Bildinspektion

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007115637A1 (de) * 2006-04-03 2007-10-18 Manroland Ag Gewichtete bogeningspektion
WO2015110213A1 (de) * 2014-01-27 2015-07-30 Akzenta Paneele + Profile Gmbh Verfahren und vorrichtung zur herstellung eines direkt bedruckten dekorpaneels unter verminderung von ausschuss aufgrund von druckfehlern
EP3099510B1 (de) 2014-01-27 2017-07-05 Akzenta Paneele + Profile GmbH Verfahren und vorrichtung zur herstellung eines direkt bedruckten dekorpaneels unter verminderung von ausschuss aufgrund von druckfehlern
US10350938B2 (en) 2014-02-25 2019-07-16 Akzenta Paneele + Profile Gmbh Method for producing decorative panels
US11117417B2 (en) 2014-02-25 2021-09-14 Akzenta Pancele + Profile GMBH Method for producing decorative panels
US10479134B2 (en) 2014-05-09 2019-11-19 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel
US10618346B2 (en) 2015-08-19 2020-04-14 Akzenta Paneele + Profile Gmbh Method for producing a decorated wall or floor panel
ITUB20159538A1 (it) * 2015-12-29 2017-06-29 Grafikontrol S P A Sistema per rilevare e tracciare difetti durante le fasi di lavorazione di materiali.
WO2017115291A1 (en) * 2015-12-29 2017-07-06 Grafikontrol S.P.A. System for detecting and tracing defects during the steps for processing materials

Also Published As

Publication number Publication date
BR0101861A (pt) 2001-12-18
JP2001334639A (ja) 2001-12-04
EP1153747B1 (de) 2008-10-15
AU4381801A (en) 2001-11-15
ATE411173T1 (de) 2008-10-15
DE60136123D1 (de) 2008-11-27
US6606947B2 (en) 2003-08-19
CA2347413A1 (en) 2001-11-11
AU777405B2 (en) 2004-10-14
EP1153747A3 (de) 2005-06-22
CA2347413C (en) 2005-07-26
CN100572087C (zh) 2009-12-23
TW487643B (en) 2002-05-21
JP3442370B2 (ja) 2003-09-02
KR20010104246A (ko) 2001-11-24
CN1331012A (zh) 2002-01-16
CH694160A5 (fr) 2004-08-13
KR100384048B1 (ko) 2003-05-14
US20010039892A1 (en) 2001-11-15

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