EP2881350A1 - Suivi de la lame de découpeur longitudinal - Google Patents

Suivi de la lame de découpeur longitudinal Download PDF

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Publication number
EP2881350A1
EP2881350A1 EP14195328.1A EP14195328A EP2881350A1 EP 2881350 A1 EP2881350 A1 EP 2881350A1 EP 14195328 A EP14195328 A EP 14195328A EP 2881350 A1 EP2881350 A1 EP 2881350A1
Authority
EP
European Patent Office
Prior art keywords
printing
printing material
material web
longitudinal cutting
sensor
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Withdrawn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
EP14195328.1A
Other languages
German (de)
English (en)
Inventor
Johann Erdt
Siegmund Echerer
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 Web Systems GmbH
Original Assignee
Manroland 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
Application filed by Manroland Web Systems GmbH filed Critical Manroland Web Systems GmbH
Publication of EP2881350A1 publication Critical patent/EP2881350A1/fr
Withdrawn legal-status Critical Current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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/58—Folding or cutting lengthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0605—Cut advances across work surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/533—With photo-electric work-sensing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/538—Positioning of tool controlled

Definitions

  • the invention relates to a longitudinal cutting device for longitudinal cutting of a printing material web in a printing machine, comprising a number of cutting blades, which are arranged transversely to the web running direction displaceable and a method for longitudinal cutting of such a printing material web.
  • a plurality of print images are usually printed side by side on a corresponding width of substrate in a printing press.
  • the printing material web is then separated by means of a longitudinal cutting device into a plurality of partial webs so as to be able to finish the final product in further processing steps.
  • the cutting blades of the longitudinal cutting devices are positioned transversely to the web in accordance with the width of the partial webs and the width of the printing material web.
  • a fixed arrangement of the cutting blade means that the longitudinal cutting device no longer along the desired cutting lines shares the substrate web. This regularly leads to waste paper or printed products of lesser quality.
  • a longitudinal cutting device in which a number of cutting blades are simultaneously axially and immediately after one another axially adjustable to reduce set-up times and thus the spoilage.
  • a user-dependent Intervention ie a so-called manually triggered reaction to changes in the substrate required.
  • the invention is therefore based on the object of specifying a method for longitudinal cutting of a printing material web in a printing press and a longitudinal cutting device which can react as quickly and accurately as possible to changes in the printing material web.
  • this object is achieved according to the invention by providing a measuring system which measures printing parameters of the printing substrate and a control unit for transferring the cutting blades are provided in a target position, wherein the control unit comprises an evaluation unit for determining the target position based on the measured printing parameters is designed.
  • this object is achieved according to the invention by measuring printing parameters of the printing material web and transferring at least one of the cutting knives to a target position, the target position being determined on the basis of the measured printing-technical parameters.
  • the invention is based on the consideration that an exact longitudinal section of a printing substrate even with changed printing parameters of the printing substrate, such as the width of the printing substrate, then can be performed when the cutting blades of the longitudinal cutting device are tracked.
  • the new position of the cutting blade, the target position, the changed properties of the printing material web should be taken into account.
  • These new properties are determined by means of a measuring system in the form of a determination of the printing parameters.
  • the target value, ie the new positioning of the cutting blades, is then determined on the basis of the determined printing-technical parameters.
  • Printing parameters may be, in particular, the position of position marks on the printing material web, but also the total width of the printing material web, if this is detected by sensors.
  • the Printing parameters are derived via a change in the color register of the individual process colors.
  • the measured printing-technical parameters are compared with nominal values. These setpoints can be stored in the system, for example in a separate database or a memory, entered manually, or even be measured by the measuring system itself.
  • a difference value is determined from the actual value and the desired value, which describes the change in the printing material web for the measured printing-technical parameter, for example the shrinkage of the printing substrate web during the measurement of the width of the printing material web or individual known position marks.
  • the target position of the cutting knife is then determined based on this difference value.
  • a new target value for the positioning of a cutting blade is determined only when the difference value exceeds a limit value stored in a database or memory or determined on the basis of the actual and / or desired values.
  • manufacturing tolerances can be specified, within which a change in the printing material triggers no adjustment of the cutting blade.
  • the measuring system advantageously comprises a number of sensors.
  • at least one sensor can be moved over the width of the printing material web.
  • Such a sensor can be selectively positioned in the region of the printing material to be measured or determine printing parameters that depend on the position or extent of the printing material or individual parts or areas of it.
  • At least two sensors are provided in a particularly advantageous embodiment, wherein a first sensor is arranged in the web running direction in front of a second sensor.
  • the first sensor determines the output parameters of the printing material web, which can also be used as setpoints for the later calculation of the target position, and the second sensor, the current parameters of the printing material after passing through the printing press or through a portion of this.
  • the first sensors are advantageously arranged in front of the printing units and the second sensors in the web running direction in front of the cutting blades.
  • At least one sensor comprises a camera.
  • changes in the printing material web can be detected, which relate to the position and extent of the printing material web, such as shrinkage or broadening, for example, by the so-called. Fan-out effect.
  • the actual value or the nominal value of the web width before the printing units can also be used from the paper data assigned to the respective paper roll.
  • the advantages achieved by the invention are in particular that by measuring the printing parameters of the printing substrate changes this can be determined directly and thus the cutting blades can be accurately positioned and readjusted. Thus, even with a shrinkage or broadening or another change in the printing substrate an exact longitudinal section and thus a high quality end product possible.
  • the longitudinal cutting device 1 comprises by way of example two cutting blades 4a, 4b, which can be moved along a rail 6, transversely to the web running direction x over the entire width of the printing material 2 to the printing substrate 2 in three or at deactivated first or second cutting blade 4a, 4b to be able to cut two partial webs of desired widths.
  • the longitudinal cutting device 1 comprises a measuring system 8, that two sensors 10a 10b.
  • the first sensor 10a is arranged in a region in which the printing material web 2 is still substantially unchanged, ie usually in an area at the beginning of the production run, such as in the area of the roll changer or before the printing units.
  • This first sensor 10a is designed as a camera and determined in the embodiment according to Fig. 1 the position of position marks 12 on the printing substrate 2.
  • the thus determined original position of the position mark 12 is used as a setpoint in the subsequent calculation of the target position of the cutting blade.
  • setpoint values can be stored or entered in a database (not shown) or in a memory (not shown).
  • the second sensor 10b is arranged in the immediate vicinity of the cutting blades 4a, 4b or according to the units of the printing machine triggering the change in the printing material web 2.
  • the second sensor 10b is also designed as a camera and determines the position of the position mark 12. The position thus determined is used as an actual value in the calculation of the target position.
  • the longitudinal cutting device 1 comprises a control unit 14, the one Evaluation unit 16 includes.
  • the actual value determined from the second sensor 10b is compared with a setpoint value provided by the database, by the memory, by an input unit or by the first sensor 10a.
  • a difference value between the desired value and the actual value is determined, which describes the change in the printing material web, here the shrinkage.
  • the target position of both cutting blades 4a, 4b is determined.
  • the cutting blades are therefore repositioned according to the shrinkage factor.
  • the evaluation unit 16 is additionally designed to carry out a limit value analysis. This means that a new target position and thus a tracking of the cutting blades 4a, 4b is determined only when the difference value of the setpoint and the actual value exceeds a stored or determined limit value. Thus manufacturing tolerances can be stored or dynamically determined on the basis of the measured printing parameters and / or on the basis of the current position of the cutting blades 4a, 4b within which a tracking of the cutting blades 4a, 4b is not performed.
  • the measuring system 8 can be designed in alternative or additional embodiment to determine general printing parameters and changes in the printing material web 2, which is a tracking of the cutting blade 4a, 4b require.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Handling Of Sheets (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Control Of Cutting Processes (AREA)
EP14195328.1A 2013-12-04 2014-11-28 Suivi de la lame de découpeur longitudinal Withdrawn EP2881350A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013113421.1A DE102013113421A1 (de) 2013-12-04 2013-12-04 Längsschnittmessernachführung

Publications (1)

Publication Number Publication Date
EP2881350A1 true EP2881350A1 (fr) 2015-06-10

Family

ID=52015865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14195328.1A Withdrawn EP2881350A1 (fr) 2013-12-04 2014-11-28 Suivi de la lame de découpeur longitudinal

Country Status (4)

Country Link
US (1) US20150151533A1 (fr)
EP (1) EP2881350A1 (fr)
CN (1) CN104691091A (fr)
DE (1) DE102013113421A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105729987A (zh) * 2016-02-05 2016-07-06 陈益币 一种上下刀卷筒印刷专版定位横切机的跟踪横切方法
CN113662233A (zh) * 2021-09-14 2021-11-19 朱玉钟 一种叶梗分离设备及其分离方法

Citations (6)

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Publication number Priority date Publication date Assignee Title
EP1415944A1 (fr) 2002-10-30 2004-05-06 MAN Roland Druckmaschinen AG Appareil pour l'ajustement de rouleaux de pression et/ou de lames de coupe dans une plieuse
DE10313774A1 (de) * 2002-12-18 2004-07-15 Koenig & Bauer Ag Vorrichtungen zur Verarbeitung einer laufenden Materialbahn
DE102005012913A1 (de) * 2004-03-23 2005-10-13 Koenig & Bauer Ag Druckmaschinen mit mindestens einem mit einem Stellglied einstellbaren Maschinenelement
EP1652805A1 (fr) * 2004-10-26 2006-05-03 Voith Paper Patent GmbH Séparateur
DE60211376T2 (de) * 2001-10-29 2007-06-06 Lasermax Roll Systems Ab Verfahren und vorrichtung für in einem hochgeschwindigkeitsdrucker bedruckte laufende bahnen
DE102007049226A1 (de) * 2007-10-13 2009-04-16 Manroland Ag Verfahren zum Betreiben einer Rollendruckmaschine

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US5813337A (en) * 1996-06-05 1998-09-29 Quad/Tech, Inc. Closed-loop printing control system
US20050098004A1 (en) * 2001-05-17 2005-05-12 Precision Automation, Inc. Systems and methods for automated material processing
US7134372B2 (en) * 2001-11-08 2006-11-14 Blue Ip, Inc. CNC slitter machine
US20070028730A1 (en) * 2003-08-20 2007-02-08 Sawyer Philip P Apparatus and methods for double ended processing
US7040204B2 (en) * 2002-10-30 2006-05-09 Mikkelsen Graphic Engineering Method for preparing graphics on sheets
US7810418B2 (en) * 2003-03-03 2010-10-12 Newell Window Furnishings, Inc. Automatically configurable blind cutting center
EP1727676B1 (fr) * 2004-03-23 2014-01-22 Koenig & Bauer Aktiengesellschaft Machines a imprimer comportant au moins un element ajustable a l'aide d'un element de reglage
DE102007023457B4 (de) * 2007-05-19 2009-05-20 Leica Biosystems Nussloch Gmbh Verfahren zur automatischen Annäherung eines dünn zu schneidenden Präparates an das Messer eines Mikrotoms
US8291799B2 (en) * 2007-06-29 2012-10-23 Quad/Graphics, Inc. Adjustable trimming assembly
IT1393147B1 (it) * 2009-03-09 2012-04-11 Sacmi Labelling S P A Ora Sacmi Verona S P A Apparato e metodo di alimentazione
US8783140B2 (en) * 2009-06-09 2014-07-22 Lean Tool Systems, Llc Gauge system for workpiece processing
US8640586B2 (en) * 2010-03-23 2014-02-04 Mckesson Automation Inc. Method and apparatus for facilitating cutting of a unit dose blister card
EP2439071A1 (fr) * 2010-10-11 2012-04-11 KBA-NotaSys SA Motif de contrôle des couleurs pour la mesure optique de couleurs imprimées sur un substrat de type feuille ou toile à l'aide d'une presse d'impression multicolore et utilisations correspondantes
DE102011089878A1 (de) * 2011-12-23 2013-06-27 Hilti Aktiengesellschaft Vorrichtung zur Trennung eines Untergrundes und Verfahren zur Steuerung einer derartigen Trennvorrichtung
US9919443B2 (en) * 2014-08-12 2018-03-20 Bell And Howell, Llc Systems, methods, and computer readable media for sheet registration in a tractorless sheet processing device using at least one existing sheet feature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60211376T2 (de) * 2001-10-29 2007-06-06 Lasermax Roll Systems Ab Verfahren und vorrichtung für in einem hochgeschwindigkeitsdrucker bedruckte laufende bahnen
EP1415944A1 (fr) 2002-10-30 2004-05-06 MAN Roland Druckmaschinen AG Appareil pour l'ajustement de rouleaux de pression et/ou de lames de coupe dans une plieuse
DE10313774A1 (de) * 2002-12-18 2004-07-15 Koenig & Bauer Ag Vorrichtungen zur Verarbeitung einer laufenden Materialbahn
DE102005012913A1 (de) * 2004-03-23 2005-10-13 Koenig & Bauer Ag Druckmaschinen mit mindestens einem mit einem Stellglied einstellbaren Maschinenelement
EP1652805A1 (fr) * 2004-10-26 2006-05-03 Voith Paper Patent GmbH Séparateur
DE102007049226A1 (de) * 2007-10-13 2009-04-16 Manroland Ag Verfahren zum Betreiben einer Rollendruckmaschine

Also Published As

Publication number Publication date
DE102013113421A1 (de) 2015-06-11
US20150151533A1 (en) 2015-06-04
CN104691091A (zh) 2015-06-10

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