EP3153319B1 - Verfahren zur regelung der bahnlage - Google Patents

Verfahren zur regelung der bahnlage Download PDF

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Publication number
EP3153319B1
EP3153319B1 EP16189407.6A EP16189407A EP3153319B1 EP 3153319 B1 EP3153319 B1 EP 3153319B1 EP 16189407 A EP16189407 A EP 16189407A EP 3153319 B1 EP3153319 B1 EP 3153319B1
Authority
EP
European Patent Office
Prior art keywords
web
printing
sensor
printing material
detected
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.)
Active
Application number
EP16189407.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3153319A2 (de
EP3153319A3 (de
Inventor
Wolfgang Hiesinger
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.)
Manroland Goss Web Systems GmbH
Original Assignee
Manroland Goss Web Systems GmbH
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
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Application filed by Manroland Goss Web Systems GmbH filed Critical Manroland Goss Web Systems GmbH
Publication of EP3153319A2 publication Critical patent/EP3153319A2/de
Publication of EP3153319A3 publication Critical patent/EP3153319A3/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters
    • 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

Definitions

  • the invention relates to a method and to a printing press for carrying out the method in which the printing material web is brought to a predetermined lateral position before a first printing location by means of an adjusting device and wherein at least one web edge is detected by means of a sensor for controlling the lateral position of the printing material web.
  • the printing substrate web In the case of printing machines which print web-like substrates, it is necessary for the printing substrate web to be brought into a correct lateral position for printing in order to arrange the printed image in the desired position on the printing substrate web before the printing process. This is necessary because deviations over the diameter range can result from the winding of the printing material roll; in some cases, the printing material web also changes the lateral running behavior when it is fed to the printing units under a voltage required for printing. These fluctuations usually vary over a role and are due to variations in the production of the printing material and when winding this on the rollers. In particular, the substrate paper such fluctuations are relatively common.
  • the printing material web is brought by an adjusting device in the desired lateral position after the unwinding of the printing substrate from the Beyakstoffrolle by an unwinder and kept constant by a control in this lateral position.
  • the lateral position lies in the plane spanned by the printing substrate and can be seen at right angles to the web running direction.
  • Such adjustment are, for example, web control, as this example, from the EP0086270 A1 are known or the adjustment of the web via an adjustment of the entire Bedruckstoffrolle by adjusting the Support arms or clamping cones of the unwinder.
  • the associated control operations are from the prior art such as from the EP0086270 A1 known.
  • the printing material web is printed with at least one printing device at least on one side with at least one printing ink, in which case non-printing form-variable printing processes such as offset printing, gravure printing, flexographic printing or, for example, a screen printing process or printing form variable printing processes such as, for example, the inkjet printing process or toner-based printing processes can be used.
  • non-printing form-variable printing processes such as offset printing, gravure printing, flexographic printing or, for example, a screen printing process or printing form variable printing processes such as, for example, the inkjet printing process or toner-based printing processes can be used.
  • the printed image of the printed printing material web is detected after the at least one printing device by means of one or more sensors in order to change and regulate the parameters influencing the print image so that the printed image meets the required quality criteria.
  • the positions of the individual printing inks and thus of the printing forms are regulated relative to each other.
  • the color density control which may require another additional sensor, the color is controlled in such a way that the tonal values of the individual process colors reach the desired value and are kept constant over the production.
  • the at least one printed substrate web is then for further processing, for example, a folding structure with L Lucassfalz featureden and a downstream folding unit, with which the web separated into individual signatures and usually folded, supplied. It is also possible to rewind the printed web, for example.
  • the US 2004/0051061 A1 discloses a method in which, based on detected marks, a plurality of functions can be regulated both with regard to the printed image and the web or strand guidance.
  • the invention is therefore based on the object to provide a solution with which the number and / or the variety of required sensors can be reduced within a printing press.
  • the inventive method and the printing machine according to the invention comprises that the sensor for detecting the lateral position of at least one web edge and at least a portion of a printed image, for controlling or regulating the color register and / or the color density and / or the fan-out effect by means of a each associated with the sensor and the adjusting device computing device is detected.
  • Such a configuration of a printing press has the advantage that the reduced cost of such a printing press can be reduced by the reduced number of sensors installed. Furthermore, the operating costs can be reduced because less effort for the maintenance of the sensors is required.
  • a sensor camera for the color register control or at least one camera color density control used, but it can also cameras for fan-out control or to capture the print image in so-called inline inspection facilities or other sensors Detecting at least parts of the printed image are used. If a plurality of control loops for controlling various parameters of the print image, such as, for example, the color register or the color density, can be detected with one sensor, then this combined sensor can also be used to detect at least one web edge.
  • the at least one sensor is embodied as a sensor traversing the web width of the printing material web or as a sensor with a fixed position relative to the printing material web during the detection of the printed image and at least one web edge.
  • traversing sensors can not permanently detect a web edge over the web width, so that in this case the position of the web edge is detected only periodically and the position of the web edge can be used to control it.
  • a sensor for detecting the printed image for controlling parameters thereof can usually only detect a partial area of the web width. Only in printing machines with a very narrow web width can the entire web width be detected with sufficiently high resolution with one sensor.
  • the lateral position of the printing material web can be done either via the definition or regulation of two not directly detectable variables such as the center line of the printing material to the center line of the printing press, but advantageously for this unique and immediately determinable variables such as the location of at least one web edge to another fixed defined reference variable such as the center axis of the printing press or the inner surface of a side wall of a component of the printing press such as a printing device used.
  • the absolute position of at least one web edge can be used to control the lateral position of the printing material as a controlled variable.
  • the position of at least one web edge can be detected and evaluated relative to a defined print mark to regulate the lateral position of the printing material web.
  • a mark which alternatively can also be used for other purposes such as, for example, the color register or the cut register control, are also printed.
  • a reference of the respective web edge to the printing form and thus to the printed image can thus be produced and the position of the printing material edge can be determined for the printed image.
  • this approach may have an advantage over the aforementioned variant, since thus the taking into account the position of the printing plate and thus the print image to a defined reference point of the printing machine is not required.
  • both web edges can also be detected with one or a plurality of sensors. Since, however, the width of the printing material can vary, which is due, for example, to manufacturing tolerances in the production of Betikstoffrollen in varying moisture of the substrate and thus different broadening especially papery substrates or in different behavior during the printing associated Auswalkens the printing material, It may thus come to deviations of the actual position of at least one web edge to the desired position of this web edge.
  • the average value of the position of both web edges for controlling the lateral position of the printing material web is preferably used when detecting the position of both web edges of the printing substrate web. This reliably prevents the difference in the web width change from becoming noticeable when the web width is changed, and only when the web edge is in the position to the printed image. Track width variations can thus be averaged out so far that ultimately the position of the print image is averaged out to both web edges.
  • the at least one sensor detects at least one web edge and at least one part of the printed image simultaneously.
  • a sensor which, for example, consists of a plurality of cameras arranged side by side in the extension of the web width and thus detects the entire web width, it is self-evident that both the print image and at least one web edge are recorded continuously and simultaneously.
  • Such a solution has the advantage that both at least always a part of the printed image and at least one web edge permanently detected and thus can be permanently and continuously controlled.
  • Fig. 1 shows an embodiment of a printing press 1 with a vertical guidance of the printing material web 2 in the area of the printing devices 7 formed as an offset printing unit according to the prior art. It should be noted, however, that any other embodiment of a printing press, for example, with horizontal web guide or with other than offset printing units running printing devices 7 than in Fig. 1 represented, executed according to the illustrated prior art or is executable. In this respect, the prior art is only at the in Fig. 1 described offset-newspaper printing device described, although this principle applies to other configurations.
  • the printing material web 2 is unrolled from printing material rolls 5, the printing material roll 5 being held in an unwinder 4 for this purpose.
  • unwinder 4 so-called reel changers or only dispensers can be executed.
  • an adjusting device 6 is arranged, with which the printing material web 2 can be deflected in a direction perpendicular to the web running direction 3.
  • Such adjusting 6 may be designed as a so-called web control or be carried out by adjusting the Betigstoffrolle 5 by the support arms or by the Tragkonen.
  • a first sensor 10-1 is arranged, with which at least one web edge 22 of the printing material web 2 is detected.
  • This first sensor 10-1 detects the actual lateral position mostly a web edge 22 of the substrate web, which serves as a controlled variable for controlling the lateral position of the printing material web.
  • This controlled variable is passed via a data line to a computing device 11, a manipulated algorithm from which the manipulated variable for the adjusting device 6 is determined, which is also passed via a data line 12 to the adjusting device 6 and executed there.
  • the printing material web 2 is printed in at least one printing device 7 at least on one side of the web at least on one side.
  • the substrate web 2 is printed on both sides with four inks in the offset printing process.
  • the printed image 21 of the printed material web 2 thus printed is detected after printing by means of at least one second sensor 10-2.
  • This second sensor 10-2 detects either the printed image 21 printed directly or only special areas of which are designed as pressure control elements 21-1.
  • the second sensor 10-2 detects, for example, the color register, ie the arrangement of the individual printing colors relative to one another, hue values such as color density values or the widening of the printed image, the so-called fan-out effect.
  • the printing material web along the web running direction 3 subsequent components such as the associated Falzetter the former 8 and a downstream folding unit 9 is fed and divided there into individual signatures. Since the further processing and post-processing of the printing material web is irrelevant to the method according to the invention, it is unequivocal whether rewinders or other devices are used here.
  • Fig. 1 shows a multi-lane printing machine 1, wherein at the same time several printing material webs 2 are printed, for example, two printing material webs 2 as in Fig. 1 shown.
  • corresponding equipment such as unwinder 4, adjusting devices 6, first sensors 10-1, first computing devices 11-1, printing devices 7, second sensors 10-2, second computing devices 11-2 and other devices, for example to guide the printing material 2 required or suitable, are used.
  • the separate components such as sensors and computing devices for the separate detection and / or regulation of the lateral position of the printing material web 2 and the parameters of the printed image 21 are multiplied by the complexity thereof.
  • Fig. 2 shows the same printing machine 1 as in Fig. 1 illustrated, however, in one embodiment according to an embodiment of the invention, which is why below only the differences between the in Fig. 2 illustrated printing machine 1 according to an embodiment of the invention and in Fig. 1 shown printing machine 1 according to the prior art.
  • the value of the lateral position of the printing material web 2 as a control variable to the same computing device 11 as the detected pressure parameters for controlling the parameters and properties of the printed image 21 via a data line 12 are passed.
  • the control commands for regulating the lateral position of the printing material web 2, which are calculated by the preferably required computing device 11 for this purpose, are guided to the adjusting device 6 via a data line 12.
  • the sensor 10 is used in addition to the detection of the web edge 22, for example, for detecting the color register or for detecting the color value such as the color density of the individual process colors. In the case of combination devices for the simultaneous detection of color registers and color values, the position of the web edge 22 can then also be effected with the same sensor 10 as an additional variable.
  • the sensor 10 can be embodied as a sensor traversing the web width and thus approximately perpendicular to the web running direction 3. Since a traversal of the sensor 10 is usually only required if not the entire print image 21 can be detected at once with the sensor 10, it is thus very probable that the sensor 10 at least a part of the print image 21 and at least one web edge 22 alternating and not permanently recorded.
  • At least one sensor 10 can also be executed at a fixed position relative to the printing material web during the detection of the printed image 21 and at least one web edge 22.
  • the displacement can be carried out manually, motorically or presettable to the respective web width.
  • the at least one sensor 10 can thus either capture only a partial area of the web width, or else the sensor 10 is designed in such a way that the entire web width can be detected simultaneously.
  • Such sensors 10 extending over the web width consist, for example, of cameras arranged side by side in the extension of the web width, preferably CCD cameras, which are interconnected in the form that they represent a detection area.
  • the lateral position of the printing material web 2 can take place either via the definition or regulation of two variables which can not be directly detected, for example the center line of the printing material web 2 to the center line of the printing press 1,
  • clearly determinable variables such as the position of at least one web edge 22 to another fixed reference such as the center axis of the printing machine 1 or the inner surface of a side wall of a component of the printing machine 1 such as a printing device 7 are used.
  • the absolute position of at least one web edge 22 can be used to control the lateral position of the printing material web 2 as a controlled variable.
  • the position of at least one web edge 22 is detected and evaluated relative to a defined print mark for the regulation of the lateral position of the printing substrate 2.
  • a mark may be printed as part of a print control element 21-1, which may alternatively also be used for other purposes such as, for example, the color register or the cut register control.
  • a reference of the respective web edge 22 to the printing form and thus to the printed image 21 can thus be produced and the position of the printing material edge 22 to the printed image 21 can be determined.
  • this approach may have an advantage over the aforementioned variant, since thus taking into account the position of the printing plate and thus the printed image 21 to a defined reference point of the printing press 1 is not required.
  • both web edges 22 can be detected with one or a plurality of sensors 10.
  • the width of the Substrate may vary, which is for example due to manufacturing tolerances in the production of Beyakstoffrollen 5, in varying humidity of the substrate and thus different broadening especially papery substrates or in different behavior during the printing associated Auswalkens the printing material, it may thus Deviations of the actual position of at least one web edge 22 come to the desired position of this web edge 22.
  • the average value of the position of both web edges 22 for controlling the lateral position of the printing substrate web is preferably determined when the position of both web edges 22 of the printing substrate web is detected used. This reliably prevents the difference of the web width change from this amount being noticeable when the web width changes in the position for print image 21 only at a web edge 22. Track width variations can thus be averaged out so far that ultimately the position of the print image is averaged out to both web edges.
  • Fig. 3 shows a plan view of the substrate web 2, which is detected by a sensor 10 and the detection range 20 of the sensor 10.
  • the sensor 10 detects with its detection area 20 both a web edge 22 and a part of the printed image 21.
  • a print control element 21-1 is a special part of the print image 21, since it is printed together with the print image 21 with the printing device 7 and the printing form variable or printing form variable printing form.
  • this pressure control element 21-1 are preferably both the fields and marks for detecting the printing parameters and possibly the marks for detecting the distance between the web edge 22 and printed image 21 included since the pressure control element 21-1 usually removed before completion of the finished printed product by trimming becomes.
  • the sensor 10 must traverse about perpendicular to the web running direction 3 on the printing substrate 2 to the entire Print control element 21-1 and / or to capture the entire print image 21. In principle, therefore, both web edges 22 can be detected by the detection area, although not continuously.
  • Fig. 4 shows an example of a sensor 10, which has a detection area 20 which extends over the entire width of the printing material 2.
  • the entire pressure control element 21-1 as well as one or both web edges 22 can be detected simultaneously, which leads to a higher control accuracy and control dynamics.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
  • Controlling Sheets Or Webs (AREA)
EP16189407.6A 2015-10-05 2016-09-19 Verfahren zur regelung der bahnlage Active EP3153319B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015116854.5A DE102015116854A1 (de) 2015-10-05 2015-10-05 Verfahren zur Regelung der Bahnlage

Publications (3)

Publication Number Publication Date
EP3153319A2 EP3153319A2 (de) 2017-04-12
EP3153319A3 EP3153319A3 (de) 2017-04-19
EP3153319B1 true EP3153319B1 (de) 2019-11-06

Family

ID=56943411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16189407.6A Active EP3153319B1 (de) 2015-10-05 2016-09-19 Verfahren zur regelung der bahnlage

Country Status (3)

Country Link
EP (1) EP3153319B1 (es)
DE (1) DE102015116854A1 (es)
ES (1) ES2755483T3 (es)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519607A1 (de) 1995-05-29 1996-12-05 Fms Force Measuring Systems Ag Sensor samt signalverarbeitendem Prozessor zur Erfassung der seitlichen Lage von Bahnkanten und/oder Markierungslinien bei der Ver- oder Bearbeitung von laufenden Materialbahnen
EP1496002A2 (de) 2003-07-11 2005-01-12 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur seitlichen Ausrichtung einer Bahn
DE10348611B3 (de) 2003-10-20 2005-04-28 Koenig & Bauer Ag Leitelement einer Druckeinheit
WO2005092613A2 (de) 2004-03-23 2005-10-06 Koenig & Bauer Aktiengesellschaft Druckmaschinen mit mindestens einem mit einem stellglied einstellbaren maschinenelement
DE102004043681A1 (de) 2004-09-09 2006-03-16 Koenig & Bauer Ag Druckmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203452C2 (de) 1982-02-02 1986-02-13 Erhardt & Leimer Kg, 8900 Augsburg Bahnlaufregelvorrichtung
DE10013876B4 (de) * 1999-04-08 2013-10-02 Heidelberger Druckmaschinen Ag Verfahren zum Regeln der Farbgebung beim Drucken mit einer Druckmaschine
DE10207184A1 (de) * 2002-02-21 2003-09-04 Irs Lab Ag Pfaeffikon Offsetdruckmaschine
US6867423B2 (en) * 2002-09-17 2005-03-15 Quad/Tech, Inc. Method and apparatus for visually inspecting a substrate on a printing press
DE10352619B4 (de) * 2003-07-11 2012-09-27 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur Beeinflussung des Fan-Out-Effektes
DE102004018401A1 (de) * 2004-04-16 2005-11-03 Koenig & Bauer Ag Verfahren und Vorrichtung zur Voreinstellung einer Druckmaschine
EP2481585B1 (de) * 2011-01-28 2015-12-16 Müller Martini Holding AG Vorrichtung und Verfahren zur Verarbeitung einer Bahn eines Bedruckstoffs zu Druckprodukten
DE102015203669B3 (de) * 2015-03-02 2015-12-31 Heidelberger Druckmaschinen Ag Automatische Positionsbestimmung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19519607A1 (de) 1995-05-29 1996-12-05 Fms Force Measuring Systems Ag Sensor samt signalverarbeitendem Prozessor zur Erfassung der seitlichen Lage von Bahnkanten und/oder Markierungslinien bei der Ver- oder Bearbeitung von laufenden Materialbahnen
EP1496002A2 (de) 2003-07-11 2005-01-12 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur seitlichen Ausrichtung einer Bahn
DE10348611B3 (de) 2003-10-20 2005-04-28 Koenig & Bauer Ag Leitelement einer Druckeinheit
WO2005092613A2 (de) 2004-03-23 2005-10-06 Koenig & Bauer Aktiengesellschaft Druckmaschinen mit mindestens einem mit einem stellglied einstellbaren maschinenelement
DE102004043681A1 (de) 2004-09-09 2006-03-16 Koenig & Bauer Ag Druckmaschine

Also Published As

Publication number Publication date
EP3153319A2 (de) 2017-04-12
DE102015116854A1 (de) 2017-04-06
EP3153319A3 (de) 2017-04-19
ES2755483T3 (es) 2020-04-22

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