EP3715124A1 - Druckbogeninspektionssystem und bogendruckmaschine mit einem solchen druckbogeninspektionssystem - Google Patents

Druckbogeninspektionssystem und bogendruckmaschine mit einem solchen druckbogeninspektionssystem Download PDF

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Publication number
EP3715124A1
EP3715124A1 EP19165187.6A EP19165187A EP3715124A1 EP 3715124 A1 EP3715124 A1 EP 3715124A1 EP 19165187 A EP19165187 A EP 19165187A EP 3715124 A1 EP3715124 A1 EP 3715124A1
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EP
European Patent Office
Prior art keywords
printed sheet
air diffuser
air
inspection system
printed
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.)
Withdrawn
Application number
EP19165187.6A
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English (en)
French (fr)
Inventor
Antoine Merminod
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.)
Inopaq Technologies Sarl
Original Assignee
Inopaq Technologies Sarl
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 Inopaq Technologies Sarl filed Critical Inopaq Technologies Sarl
Priority to EP19165187.6A priority Critical patent/EP3715124A1/de
Priority to EP20165906.7A priority patent/EP3715127B8/de
Publication of EP3715124A1 publication Critical patent/EP3715124A1/de
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/002—Sheet printing presses

Definitions

  • the present invention generally relates to a printed sheet inspection system.
  • the invention is applicable in particular as an in-line inspection system in a sheet-fed printing press, especially in a sheet-fed intaglio printing press.
  • Sheet inspection systems are known as such in the art, in particular for the purpose of carrying out in-line inspection on sheet-fed intaglio printing presses.
  • Sheet-fed intaglio printing presses and sheet inspection systems therefor are for instance disclosed in International ( PCT) Publications Nos.
  • EP 0 527 453 A1 EP 1 190 855 A1 , EP 1 231 057 A1 , EP 1 808 391 A1 , EP 2 230 202 A2 , EP 2 586 612 A1 , EP 2 687 839 A2 and Japanese Patent Publications Nos. JP 2012-061602 A , JP 2015-105846 A .
  • CCD Charge Couple Device
  • the inspection system includes a CCD line sensor and is configured to scan the printed sheet as it moves past the sensor so as to acquire an image of the full printed sheet.
  • the printed sheet to be inspected is typically supported during the image acquisition process against a reference surface, which can be flat or curved depending on the application. In some instances, this is achieved by drawing the printed sheet against the reference surface by suction of the opposite side of the printed sheet, which requires a suitable suction system located along the transport path of the printed sheets (see e.g. EP 0 527 453 A1 , EP 1 190 855 A1 , EP 1 231 057 A1 , EP 1 808 391 A1 , EP 2 230 202 A2 , WO 03/070465 A1 , WO 2011/161656 A1 ).
  • air nozzles and/or air blades may be provided in order to blow air against the printed surface of the printed sheet to be inspected to press it against the reference surface (see e.g. EP 2 230 202 A2 , EP 2 586 612 A1 , WO 2011/161656 A1 ).
  • Air nozzles and air blades are typically supplied with compressed air and are positioned to blow air directly against the sheet surface and locally generate air pressure to maintain the sheet against the circumferential surface of the cylinder transporting the sheet, which circumferential surface acts as reference surface. Air nozzles and air blades have a fundamental problem in that they generate highly turbulent airflow and typically require multiple nozzles or air blades, which need to be positioned individually, with a specific adjustment of the airflow. These solutions therefore become unnecessarily complex and difficult to adjust in practice.
  • CIS contact image sensors
  • CIS devices which may be of the order of 10 to 60 mm
  • CCD devices the focal length of CIS devices
  • the very short focal length of CIS devices necessarily imposes very stringent requirements as regards transport and guidance of the printed sheets past the imaging device to avoid mechanical interference between the printed sheets and the imaging system, which could cause print quality issues.
  • CIS devices have therefore mainly been used in web-fed printing presses, as transport and guidance of the printed web is far easier to control.
  • the printed sheets also have a tendency to stick to the surface of the printing cylinder that transfers ink to the surface of the sheets, be it a plate cylinder that transfers ink directly to the surface of the sheets or a blanket cylinder that collects ink from one or more upstream-located plate cylinders before transfer thereof to the surface of the sheets.
  • a general aim of the invention is to provide an improved sheet inspection system.
  • an aim of the present invention is to provide such a sheet inspection system that ensures that the printed sheets to be inspected are properly supported against the circumferential surface of the cylinder transporting the printed sheets past the imaging unit.
  • Yet another aim of the invention is to provide such a solution which prevents the occurrence of print quality issues on the printed sheets being inspected.
  • a further aim of the invention is to provide such a solution which makes it possible to use contact image sensors as the image sensor of the imaging unit.
  • Still another aim of the invention is to provide such a solution that less complex than the known solutions and that is easier to operate and maintain.
  • a sheet inspection system configured to inspect printed sheets being transported by a transport cylinder of a sheet-fed printing press
  • which printed sheet inspection system comprises an imaging unit located proximate to a circumferential surface of the transport cylinder, which imaging unit is configured to acquire an image of a printed surface of the printed sheet as the printed sheet moves past the imaging unit under the action of the transport cylinder.
  • the sheet inspection system further comprises a blowing unit coupled to an air diffuser, which air diffuser is positioned proximate to the circumferential surface of the transport cylinder and extends along a portion of the circumferential surface of the transport cylinder, the blowing unit and air diffuser being configured to produce an air pressure zone and form an air cushion zone, laterally containing the air pressure zone, which press the printed sheet against the circumferential surface of the transport cylinder.
  • a lower side of the air diffuser which is positioned proximate to the circumferential surface of the transport cylinder, is provided with a diffuser opening that extends both in the lateral and circumferential directions, which diffuser opening faces the circumferential surface of the transport cylinder, and the air pressure zone and air cushion zone coincide with a shape and position of the diffuser opening.
  • a width of the diffuser opening, transversely to a transport path of the printed sheets may especially be of the order of 800 mm.
  • the diffuser opening may in particular be substantially rectangular.
  • the air diffuser may further be provided with two lateral surfaces extending in the circumferential direction, on either side of the diffuser opening, each lateral surface contributing to the formation of a corresponding air cushion which contains the air pressure zone between the thus created air cushion zone, a width of each lateral surface being comparatively larger than a gap between the lower side of the air diffuser and the circumferential surface of the transport cylinder.
  • a gap between a lower side of the air diffuser and the circumferential surface of the transport cylinder may especially be of less than 5 mm, which favours production of the air pressure zone and formation of the air cushion zone.
  • the imaging unit is located inside an inner space of the air diffuser.
  • the imaging unit may be located in an inlet section of the air diffuser.
  • the imaging unit may be located in the inlet section of the air diffuser so as to cause a breakpoint of the airflow upstream of a trailing edge zone of the air diffuser and downstream of the imaging unit.
  • the imaging unit comprises a contact image sensor (CIS), the focal length of which may be of less than 100 mm, in particular of the order of 60 mm or less.
  • CIS contact image sensor
  • the air diffuser comprises an arc-shaped leading end section that extends from an inlet section of the air diffuser along the portion of the circumferential surface of the transport cylinder.
  • the air diffuser may be configured such as to produce a high-velocity air jet exiting a leading edge of the air diffuser in a direction opposite to a transport direction of the printed sheet.
  • the air diffuser is configured such that airflow velocity of the air exiting edges of the air diffuser is greater than airflow velocity inside the air diffuser, pressure inside the air diffuser being greater than ambient pressure.
  • the air diffuser is configured to subject the printed sheet to both a shear force, having a main component extending in a direction opposite to a direction of transport of the printed sheet, and a pressure force, perpendicular to the printed surface of the printed sheet.
  • the air diffuser may comprise an adjustable blade located at a trailing end of the air diffuser to adjust a gap between a trailing edge of the air diffuser and the printed surface of the printed sheet exiting the air diffuser.
  • the blowing unit may especially be a high-pressure centrifugal fan. Furthermore, the blowing unit is preferably provided with a fine filter.
  • a sheet-fed printing press comprising a printing group including at least an impression cylinder and a printing cylinder cooperating with the impression cylinder to form a printing nip therebetween, wherein the sheet-fed printing press further comprises a printed sheet inspection system in accordance with the invention to carry out in-line inspection of the printed sheets that are printed on the sheet-fed printing press.
  • the impression cylinder acts as the transport cylinder of the printed sheet inspection system, and the imaging unit and the air diffuser are located downstream of the printing nip.
  • the sheet-fed printing press is an intaglio printing press comprising an intaglio plate cylinder acting as the printing cylinder.
  • Figure 1 is a schematic perspective view of a printed sheet inspection system in accordance with an embodiment of the present invention, which printed sheet inspection system is shown in association with an impression cylinder 6 and an intaglio plate cylinder 8 of a printing group of an intaglio printing press.
  • the intaglio printing press typically further comprises an inking system designed to ink the intaglio printing plates that are carried by the intaglio plate cylinder, a wiping system designed to wipe excess ink from the surface of the intaglio printing plates, a sheet feeder system to supply printed sheets to the impression cylinder 6, as well as a sheet delivery system to transport the printed sheets away from the impression cylinder 6.
  • an inking system designed to ink the intaglio printing plates that are carried by the intaglio plate cylinder
  • a wiping system designed to wipe excess ink from the surface of the intaglio printing plates
  • a sheet feeder system to supply printed sheets to the impression cylinder 6
  • a sheet delivery system to transport the printed sheets away from the impression cylinder 6.
  • the impression cylinder 6 is provided with a set of sheet grippers 7 that are designed to hold the printed sheets 1 by a leading edge thereof, as schematically shown in Figure 1 .
  • These sheet grippers are located in corresponding cylinder pits that are distributed about the circumference of the impression cylinder. Cylinder pits are likewise provided on the intaglio plate cylinder 8 to house plate clamping systems (not shown) to clamp the leading and trailing ends of the intaglio printing plates (not shown).
  • the impression cylinder 6 acts as transport cylinder to transport the printed sheets 1 past an imaging unit 4 (not shown in Figure 1 but visible in Figures 2 and 5 ) of the printed sheet inspection system.
  • the intaglio plate cylinder 8 here acts as printing cylinder transferring ink to one surface of the printed sheets 1, namely the lower side thereof, which surface is to be inspected by the printed sheet inspection system.
  • the printed sheets 1 are printed at the printing nip formed between the impression cylinder 6 and the intaglio plate cylinder 8 (see also Figure 2 ).
  • Figure 2 is a schematic cross-sectional side view of the printed sheet inspection system of Figure 1 , also showing the aforementioned impression cylinder 6 and intaglio plate cylinder 8.
  • the impression cylinder 6 and intaglio plate cylinder 8 are both three-segment cylinders, each comprising three cylinder pits that are distributed evenly about the circumference of the cylinder.
  • three sets of sheet grippers 7 located in the cylinder pits of the impression cylinder 6, each designed to hold a printed sheet by a leading edge.
  • Figure 3 is a schematic perspective view of the printed sheet inspection system of Figure 1 as viewed from a different viewing angle, which printed sheet inspection system is shown in association with the impression cylinder 6.
  • the intaglio plate cylinder 8 has been omitted in this view to more clearly illustrate the invention.
  • Figure 4 is another schematic perspective view of the printed sheet inspection system of Figure 1 as viewed from an opposite direction compared to Figure 3 , with the impression cylinder 6 removed.
  • Figures 1 to 4 Key components of the printed sheet inspection system are shown in Figures 1 to 4 , including the imaging unit 4 that is located proximate to a circumferential surface of the impression cylinder 6, which imaging unit 4 is configured to acquire an image of the printed surface of the printed sheet 1 as the printed sheet 1 moves past the imaging unit 4 under the action of the impression cylinder 6 (the impression cylinder 6 rotating in the clockwise direction in Figure 2 during printing operations).
  • the printed sheet inspection system further comprises a blowing unit 5 that is coupled to an air diffuser 2, which air diffuser 2 is positioned proximate to the circumferential surface of the impression cylinder 6 and extends along a portion of the circumferential surface of the impression cylinder 6, downstream of the printing nip formed by the impression cylinder 6 and the intaglio plate cylinder 8.
  • the blowing unit 5 and air diffuser 2 are configured to produce an air pressure zone and form an air cushion zone, laterally containing the air pressure zone, which press the printed sheet 1 against the circumferential surface of the impression cylinder 6.
  • the diffuser opening is here designed as a substantially rectangular opening.
  • a width of the diffuser opening, transversely to the transport path of the printed sheet 1 substantially corresponds to a maximum width of the printed sheet 1.
  • a width of the order of 800 mm especially comes under consideration.
  • a gap between the lower side of the air diffuser 2 and the circumferential surface of the impression cylinder 6 is selected not to exceed a few millimetres, and may in particular be less than 5 mm.
  • a gap of the order of 2 to 3 mm especially comes under consideration. This ensures that the air pressure zone Z7 and air cushion zone Z6 can suitably be produced and maintained.
  • the imaging unit 4 is located inside an inner space of the air diffuser 2, as this is clearly visible in Figure 2 , which constitutes a key advantage in that the imaging unit 4 is basically sealed from the environment by the air diffuser 2 and the airflow circulating therein. This further contributes to cooling the imaging unit 4.
  • the imaging unit 4 could however be located outside of the air diffuser 2 so as not to sit in the airflow produced by the air diffuser 2.
  • the air diffuser could especially be provided with a sealed window portion configured to allow the imaging unit to look at a portion of the printed sheet located within the air pressure zone created by the air diffuser.
  • the imaging unit 4 is advantageously located in an inlet section (Z1 in Figure 5 ) of the air diffuser 2. As this will be appreciated hereafter, this particular location of the imaging unit 4 is contemplated to cause a breakpoint of the airflow upstream of a trailing edge zone of the air diffuser 2 (see Figure 5 ).
  • the imaging unit 4 comprises a contact image sensor (CIS), and is therefore positioned in close proximity to the circumferential surface of the impression cylinder 6.
  • the focal length of the contact image sensor (CIS) is preferably of less than 100 mm, even more preferably of the order of 60 mm or less.
  • a focal length as low as 10 mm could for instance be contemplated in the context of the present invention. This considerably reduces overall dimensions of the printed sheet inspection system as compared to the known solutions making use of CCD image sensor devices.
  • the imaging unit 4 could be supported inside the air diffuser 2 in such a way as to allow adjustment of the position of the imaging unit 4 with respect to the circumference of the impression cylinder 6, thereby allowing to carry out adjustment of the focus of the imaging unit 4 with respect to the printed sheets 1 to be inspected.
  • a motorized adjustment system especially comes under consideration.
  • the air diffuser 2 advantageously comprises an arc-shaped leading end section that extends from the inlet section of the air diffuser 2, where the imaging unit 4 is preferably located, along the portion of the circumferential surface of the impression cylinder 6, towards the printing nip. More specifically, the air diffuser 2 is configured in such a way as to cause acceleration of the airflow in the leading end section of the air diffuser 2. Furthermore, the air diffuser 2 is here configured such that airflow velocity of the air exiting edges of the air diffuser 2 is greater than airflow velocity inside the air diffuser, pressure inside the air diffuser 2 being greater than ambient pressure.
  • blowing unit 5 is here a high-pressure centrifugal fan.
  • Other solutions could be contemplated to provide the air diffuser 2 with a suitable air supply, but a high-pressure centrifugal fan is a particularly advantageous and compact solution.
  • the high-pressure centrifugal fan, acting as blowing unit 5 can simply be connected to a rear end of the air diffuser 2, at the inlet section, via a suitable conduit.
  • cables and connections to the imaging unit 4 could conveniently be routed via the conduit connecting the blowing unit 5 to the air diffuser 2.
  • airflow produced by the blowing unit 5 is adjustable.
  • blowing unit 5 is preferably provided with a fine filter to ensure a higher air purity and prevent ambient dust from being projected against the freshly-printed side of the printed sheet 1.
  • a fine filter will further protect the imaging unit 4 from dust projection and contamination coming from the printed sheets and from the printing press environment.
  • a defined air pressure zone Z7 is thus created over the relevant portion of the circumferential surface of the impression cylinder 6, and therefore over the relevant portion of the printed sheets 1 being transported through the gap between the air diffuser 2 and the circumferential surface of the impression cylinder 6, which causes the printed sheet 1 to be pressed against the circumferential surface of the impression cylinder 6.
  • an air cushion zone Z6, laterally containing the air pressure zone Z7, is formed along the sides of the air diffuser 2. This air cushion zone Z6 maintains the air pressure zone Z7 within the limits of the printed sheet 1 to be inspected, thereby ensuring that air pressure is only applied where it needs to.
  • a suitable air cushion zone Z6 is created on both lateral sides of the air diffuser 2 by the provision of two lateral surfaces extending in the circumferential direction, on either side of the diffuser opening (as for instance shown in Figure 4 ), each lateral surface contributing to the formation of a corresponding air cushion which contains the air pressure zone Z7 between the thus created air cushion zone Z6.
  • the width of each lateral surface (which by way of illustration can be of the order of 140 mm) is comparatively larger than the gap between the said lateral surfaces and the circumferential surface of the impression cylinder 6 (which by way of illustration can be of the order of 2 to 3 mm).
  • Figure 5 is a partial cross-sectional side view of the air diffuser 2 of the sheet inspection system of Figure 1 .
  • Figure 5 in particular shows that the imaging unit 4 is located in the inlet section Z1 of the air diffuser 2, closer to a lower wall of the inlet section Z1, to force part of the inlet airflow above the imaging unit 4 and to cause a breakpoint of the airflow at Z2, upstream of a trailing edge zone Z5 of the air diffuser 2 and downstream of the imaging unit 4.
  • a small part of the air flux flows out at Z5, and the other part of the air flux passes in front of the imaging unit 4.
  • the location Z2 where the breakpoint occurs is preferably such as to be close to the trailing edge zone Z5 in order to minimize interference with the trailing edge of the printed sheet 1 upon leaving the air diffuser 2.
  • the external geometry of the imaging unit 4, which sits in the passage of the air, could be optimized to improve airflow in the inlet section Z1, around the imaging unit 4, and downstream thereof.
  • Air is introduced at the inlet section Z1 of the air diffuser 2, at low speed V1, under the action of the blowing unit 5.
  • the configuration of the air diffuser 2 is such that airflow velocity V2 in the arc-shaped leading end section of the air diffuser 2 (zone Z3) is greater than airflow velocity V1 at the inlet section Z1 of the air diffuser 2.
  • the configuration of the air diffuser 2 is such that a high-velocity air jet is produced at Z4, exiting a leading edge of the air diffuser 2 in a direction opposite to a transport direction of the printed sheet 1. This prevents the printed sheet 1 from coming off the impression cylinder 6 prior to entering the gap between the air diffuser 2 and the circumferential surface of the impression cylinder 6.
  • the velocity V3 of the air jet produced at Z4, as well as of the air flowing off the sides of the air diffuser 2, is higher than the airflow velocity V2 in zone Z3, making the pressure inside the air diffuser 2 higher than ambient pressure, contributing to the formation of the air pressure zone Z7 and air cushion zone Z6.
  • the system is designed so that the airflow velocities V2 and V3 are much higher (10 times or more) than the transport velocity VR of the printed sheets 1 induced by rotation of the impression cylinder 6.
  • the air diffuser 2 can be designed to achieve airflow velocities V2 and V3 of the order of 10-15 m/s and more than 30 m/s, respectively.
  • the aforementioned measures contribute to producing a pressure force P1, perpendicular to the surface of the printed sheet 1, which presses the printed sheet 1 against the circumferential surface of the impression cylinder 6, as well as a shear force S1, created by the air friction on the sheet surface, which shear force S1 has a main component extending in a direction opposite to the direction of transport of the printed sheet 1.
  • the ratio S1/P1 which is equivalent to a friction coefficient, is selected to be less than 2%, which is much lower than the friction coefficient between the printed sheet 1 and the impression cylinder 6.
  • Figure 5A is an enlarged view of a trailing end section of the air diffuser 2 shown in Figure 5 . It illustrates a further refinement of the invention, namely the additional provision of an adjustable blade 3 located at the trailing end of the air diffuser 2 to adjust a gap between the trailing edge of the air diffuser 2 and the printed surface of the printed sheet 1 exiting the air diffuser 2.
  • This blade 3 can be adjusted to make the gap at the trailing edge as small as possible to reduce the flow of air coming off the trailing end of the air diffuser 2. This will help preventing the printed sheet 1 exiting the air diffuser 2 from being pushed away.
  • CIS contact image sensor
  • CCD image sensors could still be contemplated, provided a position of the imaging unit is adjusted accordingly.
  • the imaging unit does not necessarily need to be located in the path of the airflow.
  • the imaging unit could for instance be located outside of the inner chamber of the air diffuser.
  • the air diffuser could for instance be provided with a sealed window portion configured to allow the imaging unit to look at a portion of the printed sheet located within the air pressure zone created by the air diffuser.
EP19165187.6A 2019-03-26 2019-03-26 Druckbogeninspektionssystem und bogendruckmaschine mit einem solchen druckbogeninspektionssystem Withdrawn EP3715124A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19165187.6A EP3715124A1 (de) 2019-03-26 2019-03-26 Druckbogeninspektionssystem und bogendruckmaschine mit einem solchen druckbogeninspektionssystem
EP20165906.7A EP3715127B8 (de) 2019-03-26 2020-03-26 Druckbogeninspektionssystem und bogendruckmaschine damit

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EP19165187.6A EP3715124A1 (de) 2019-03-26 2019-03-26 Druckbogeninspektionssystem und bogendruckmaschine mit einem solchen druckbogeninspektionssystem

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EP20165906.7A Active EP3715127B8 (de) 2019-03-26 2020-03-26 Druckbogeninspektionssystem und bogendruckmaschine damit

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EP0527453A1 (de) 1991-08-14 1993-02-17 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Vorrichtung zum Kontrollieren von bedruckten Bogen in einer Bogenrotationsdruckmaschine
EP1190855A1 (de) 2000-09-22 2002-03-27 Komori Corporation Druckqualitätskontrolleinrichtung
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EP2586612A1 (de) 2011-10-26 2013-05-01 Komori Corporation Tiefdruckmaschine
EP2687839A2 (de) 2012-07-20 2014-01-22 Komori Corporation Inspektionsvorrichtung für ein Blatt
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Publication number Priority date Publication date Assignee Title
EP0527453A1 (de) 1991-08-14 1993-02-17 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Vorrichtung zum Kontrollieren von bedruckten Bogen in einer Bogenrotationsdruckmaschine
EP1190855A1 (de) 2000-09-22 2002-03-27 Komori Corporation Druckqualitätskontrolleinrichtung
EP1231057A1 (de) 2001-02-09 2002-08-14 Komori Corporation Bogendruckmaschine
WO2003070465A1 (de) 2002-02-20 2003-08-28 Kba-Giori S.A. Vorrichtung zum transport von bogen mit einem bogenleitelement
US20060078168A1 (en) * 2002-10-18 2006-04-13 Webtech Co., Ltd. Equipment for inspecting quality of printed matter
WO2005108082A1 (de) 2004-05-03 2005-11-17 Heidelberger Druckmaschinen Ag Vorrichtung zur inline-überwachung der druckqualität bei bogenoffsetdruckmaschinen
WO2006046249A1 (en) 2004-10-28 2006-05-04 Vcortex Ltd. Density measurement, colorimetric data, and inspection of printed sheet using contact image sensor
WO2007060615A1 (en) 2005-11-25 2007-05-31 Kba-Giori S.A. Method for detection of occurrence of printing errors on printed substrates during processing thereof on a printing press
EP1808391A1 (de) 2006-01-12 2007-07-18 Komori Corporation Blattsortierverfahren und -vorrichtung
EP1958772A2 (de) 2007-02-17 2008-08-20 manroland AG Bedruckstoffinspektionseinrichtung
DE102008051582A1 (de) * 2007-11-05 2009-05-07 Heidelberger Druckmaschinen Ag Anordnung zur Inspektion eines Bogens in einer Druckmaschine
EP2230202A2 (de) 2009-03-19 2010-09-22 Komori Corporation Qualitätsprüfvorrichtung für ein blattförmiges Material
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JP2012061602A (ja) 2010-09-14 2012-03-29 Komori Corp 凹版印刷機
EP2586612A1 (de) 2011-10-26 2013-05-01 Komori Corporation Tiefdruckmaschine
EP2687839A2 (de) 2012-07-20 2014-01-22 Komori Corporation Inspektionsvorrichtung für ein Blatt
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DE102017208515A1 (de) * 2017-05-19 2018-11-22 Koenig & Bauer Ag Verfahren zum Betreiben einer bogenverarbeitenden Maschine und bogenverarbeitende Maschine

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EP3715127B1 (de) 2022-06-22
EP3715127B8 (de) 2022-09-28

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