EP1876124A2 - Procédé destiné au fonctionnement dýun appareil de pliage dýune presse - Google Patents

Procédé destiné au fonctionnement dýun appareil de pliage dýune presse Download PDF

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Publication number
EP1876124A2
EP1876124A2 EP07013071A EP07013071A EP1876124A2 EP 1876124 A2 EP1876124 A2 EP 1876124A2 EP 07013071 A EP07013071 A EP 07013071A EP 07013071 A EP07013071 A EP 07013071A EP 1876124 A2 EP1876124 A2 EP 1876124A2
Authority
EP
European Patent Office
Prior art keywords
cutting unit
cross
folding
sensor
sectional error
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Withdrawn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
EP07013071A
Other languages
German (de)
English (en)
Other versions
EP1876124A3 (fr
Inventor
Siegmund Echerer
Thomas Heidel
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 AG
Original Assignee
Manroland AG
MAN Roland Druckmaschinen AG
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 AG, MAN Roland Druckmaschinen AG filed Critical Manroland AG
Publication of EP1876124A2 publication Critical patent/EP1876124A2/fr
Publication of EP1876124A3 publication Critical patent/EP1876124A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B65H43/08—Photoelectric devices

Definitions

  • the invention relates to a method for operating a folding apparatus of a printing press according to the preamble of claim 1.
  • Folders of printing presses serve for the formation of folds on printed substrates, wherein in known from the prior art webs of a printing material usually combined in a folding structure or magazine construction and thereby deposited on each other, then the merged webs of at least one former having L Lucassfalzü feed, so as to form a longitudinal fold on the webs.
  • the webs are guided in the direction of a cutting unit.
  • copies of the webs provided with a longitudinal fold are separated by cross-cutting.
  • the cutting unit is usually followed by a Querfalzhow downstream, comprising at least one folding blade and a jaw cylinder.
  • Copies separated at the separating unit are moved in the direction of the jaw cylinder with the aid of the folding blade cylinder.
  • the separated copies which are moved by the folding blade cylinder in the direction of the jaw cylinder, are transferred to the jaw cylinder to form a first transverse fold from the folding blade cylinder.
  • second Querfalze can be formed between the jaw cylinder and a gripper cylinder, which cooperates with the jaw cylinder.
  • the copies thus provided with a longitudinal fold and with at least one transverse fold reach, starting from the transverse folding unit, into the region of a second longitudinal folding unit, which usually comprises a plurality of folding tables. In the region of the folding tables, second longitudinal folds are formed on the already pre-folded copies which run parallel to the longitudinal fold formed in the first longitudinal folding unit.
  • folders without former or first Leksfalzhow in which case the printing material from the Falztive or magazine structure are then fed directly to the cutting unit.
  • folders which have no Querfalzhow, in which therefore separated from the printing material in the region of the cutting unit copies collected on a collecting cylinder and fed directly to the second Lssensfalzappel.
  • the folding structure or magazine construction usually comprises a plurality of offset rods, wherein with the offset rods running paths of the printing material webs can be lengthened and shortened so as to compensate for an expected cross-sectional defect which can occur at the cutting unit.
  • the expected cross-sectional error is detected by means of sensors associated with the folding structure or magazine structure, in particular the offset rods thereof. If the offset rods are influenced on the basis of the anticipated cross-sectional error detected by the sensors associated with the folding structure, it is inevitable that waste will be generated in the area of the cutting unit, since no influence is exerted on the portion of the printing material webs which has already passed the sensors can be. This is a disadvantage.
  • the present invention has the object to provide a novel method for operating a folding apparatus of a printing press, with which in the region of the cutting unit less waste is generated.
  • a drive of the cutting unit is influenced on the basis of the anticipated cross-sectional error detected by the or each sensor in order to compensate for the expected cross-sectional error at the cutting unit.
  • the cutting unit serve to separate copies from the printing material webs To influence drive of the cutting unit to compensate for the expected cross-sectional error directly on the cutting unit.
  • an offset is applied to the actuating signal for driving the cutting unit in order to compensate for the expected cross-sectional error directly at the cutting unit.
  • all the drives of the assemblies of the folding apparatus are further influenced, which are arranged downstream of the cutting unit when viewed in the transport direction of the printing webs or copies.
  • a sensor is associated with a folding blade cylinder seen in the transport direction of Betikbahnen or copies downstream of the cutting unit Querfalzhow to determine the actual cross-sectional error relative to the folding blade of the folding blade, depending on this actual cross-sectional error driving the Falzmessersystems is influenced to compensate for the actual cross-sectional error.
  • Fig. 1 shows a highly schematic representation of a folding apparatus 10 which comprises a folding structure 11, wherein according to FIG. 1 in the region of the folding structure 11 four printing material webs 12, 13, 14 and 15 are brought together and deposited on each other.
  • the combined in the region of the folding assembly 11 printing material webs 12, 13, 14 and 15 are shown in FIG. 1 fed to a former 16 of a L Lucassfalztechnik 17 so as to form a longitudinal fold on the printing material webs 12, 13, 14 and 15.
  • the provided with a longitudinal fold printing material webs 12 to 15 then pass a Querperforationshow 18 and following the Querperforationshow 18 a cutting unit 19 to separate from the provided with a longitudinal fold printing material webs 12, 13, 14 and 15 by cross cutting copies.
  • a transverse folding unit 20 adjoins the cutting unit 19 in order to form at least one transverse fold on the copies separated from the printing material webs.
  • the structure of such Querfalzappelen is familiar to the person skilled in the art and therefore needs no further explanation.
  • Leksfalzü connect to form at the already provided with a longitudinal fold and at least one transverse fold copy further Leksfalze that extend parallel to the longitudinal folds 17 generated in the former 16 of the Ltician.
  • each printing material web 12, 13, 14 and 15 is assigned at least one sensor 21 designed as a camera.
  • Sensors 21 can be detected in the region of the folding structure 11, an expected cross-sectional error, which can be adjusted in the cutting unit 19 during cross-cutting of the printing material webs 12 to 15.
  • a drive 22 of the cutting unit 19 is influenced on the basis of the anticipated cross-sectional error detected by the or each sensor 21 in order to compensate for the expected cross-sectional error at the cutting unit 19.
  • the expected cross-sectional error detected by the or each sensor 21 is superimposed on an actuating signal 23 for the drive 22 of the cutting unit 19 in the sense of an offset 24.
  • each printing material web 12, 13, 14 and 15 is assigned a sensor 21 for detecting the expected cross-sectional error, but a printing material web is defined as a reference web and only the expected cross-sectional error determined from the sensor 21 assigned to the reference web is used to affect the drive 22 of the cutting unit 19.
  • the printing material web 12 is defined as a reference path, wherein due to the position of the switch 25, the measured value of the sensor 21, which is assigned to the reference strand 12, is used to offset the actuating signal 23 of the drive 22 of the cutting unit 19 24 overlay.
  • each of the printing material webs 12 to 15 can be defined as a reference web. Only the switch 25 is then transferred into a switching position in which the expected cross-sectional error determined by the sensor assigned to the reference track is used to provide the offset 24.
  • the detected, expected cross-sectional error which can occur at the cutting unit 19, is not only used to influence the drive 22 of the cutting unit 19, but rather also to influence the area of the folding structure 11, Not illustrated offset rods that serve the Run paths of the printing material webs 12 to 15 in the region of the folding structure 11 to extend or shorten.
  • a coarse compensation of the expected cross-sectional error is then possible by influencing the offset rods in the region of the folding structure 11; the fine compensation takes place by influencing the drive 22 of the cutting unit 19.
  • a folding blade cylinder of the transverse folding unit 20 which is arranged downstream of the cutting unit 19 in the direction of transport of the printing material webs or the copies separated from the printing substrate webs, can be assigned a further sensor, not shown, for detecting the actual cross-sectional error of the cutting unit 19 to determine relative to a folding blade system of the folding blade.
  • the actual cross-sectional error as determined by this sensor can then be used to influence a drive of the folding blade system of the folding blade cylinder so as to compensate for the actual cross-sectional error of the cutting unit 19 in the region of the cross folding unit.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP07013071A 2006-07-08 2007-07-04 Procédé destiné au fonctionnement dýun appareil de pliage dýune presse Withdrawn EP1876124A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006031681.9A DE102006031681B4 (de) 2006-07-08 2006-07-08 Verfahren zum Betreiben eines Falzapparats einer Druckmaschine

Publications (2)

Publication Number Publication Date
EP1876124A2 true EP1876124A2 (fr) 2008-01-09
EP1876124A3 EP1876124A3 (fr) 2008-06-11

Family

ID=38544210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07013071A Withdrawn EP1876124A3 (fr) 2006-07-08 2007-07-04 Procédé destiné au fonctionnement dýun appareil de pliage dýune presse

Country Status (3)

Country Link
US (1) US20080006979A1 (fr)
EP (1) EP1876124A3 (fr)
DE (1) DE102006031681B4 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5568767A (en) * 1995-04-27 1996-10-29 Heidelberger Druckmaschinen Ag Method and device for maintaining print to cut register
DE10338973A1 (de) * 2002-09-30 2004-04-15 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Störungserfassung beim Transport einer Materialbahn
WO2005016806A1 (fr) * 2003-08-06 2005-02-24 Man Roland Druckmaschinen Ag Procede et dispositif de reglage du repere de coupe sur une presse rotative en mode multi-bandes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963965A (en) * 1959-06-05 1960-12-13 Mercury Engineering Corp Automatic registry control system and method for printing and cutting a web
DE2856705C2 (de) * 1978-12-29 1986-03-20 Agfa-Gevaert Ag, 5090 Leverkusen Einrichtung zum Erkennen von mangelhaften Klebestellen an Filmstreifen
US5438926A (en) * 1991-11-04 1995-08-08 Hudyma; Edward Device for maintaining cut off registration in a printing press
DE10154003A1 (de) * 2001-11-02 2003-05-15 Heidelberger Druckmasch Ag Vorrichtung und Verfahren zur Positionierung eines Querschnitts auf einem Bedruckstoff in Rollendruckmaschinen
DE10236657A1 (de) * 2002-08-09 2004-02-26 Maschinenfabrik Wifag Schnittregister-Einstellvorrichtung
US7096789B2 (en) * 2004-05-04 2006-08-29 Goss International Americas, Inc. Web printing press and method for controlling print-to-cut and/or circumferential register

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5568767A (en) * 1995-04-27 1996-10-29 Heidelberger Druckmaschinen Ag Method and device for maintaining print to cut register
DE10338973A1 (de) * 2002-09-30 2004-04-15 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Störungserfassung beim Transport einer Materialbahn
WO2005016806A1 (fr) * 2003-08-06 2005-02-24 Man Roland Druckmaschinen Ag Procede et dispositif de reglage du repere de coupe sur une presse rotative en mode multi-bandes

Also Published As

Publication number Publication date
EP1876124A3 (fr) 2008-06-11
US20080006979A1 (en) 2008-01-10
DE102006031681A1 (de) 2008-01-10
DE102006031681B4 (de) 2020-02-13

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