EP1440799A1 - Procédé et machine d'impression en héliogravure avec plusieurs unités - Google Patents

Procédé et machine d'impression en héliogravure avec plusieurs unités Download PDF

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Publication number
EP1440799A1
EP1440799A1 EP03001669A EP03001669A EP1440799A1 EP 1440799 A1 EP1440799 A1 EP 1440799A1 EP 03001669 A EP03001669 A EP 03001669A EP 03001669 A EP03001669 A EP 03001669A EP 1440799 A1 EP1440799 A1 EP 1440799A1
Authority
EP
European Patent Office
Prior art keywords
printing
impression
cylinder
speed
impression roller
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Withdrawn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
EP03001669A
Other languages
German (de)
English (en)
Inventor
Wilfried Dr. Kolbe
Andreas Kückelmann
Ralf Mulch
Klaus Schirrich
Bodo Steinmeier
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co KG
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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to EP03001669A priority Critical patent/EP1440799A1/fr
Priority to US10/688,554 priority patent/US20040144272A1/en
Publication of EP1440799A1 publication Critical patent/EP1440799A1/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Withdrawn legal-status Critical Current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
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/30—Heliography

Definitions

  • the invention relates to a multi-stage gravure printing machine with a first and at least one further printing unit, each having a impression roller and a powered printing cylinder included, as well as a gravure printing method for such a gravure printing machine.
  • a conventional gravure printing machine runs a web of a substrate through a gap between a driven gravure cylinder and a non-driven cylinder, the so-called impressionur, the web presses against the gravure cylinder.
  • the web presses against the gravure cylinder.
  • several images are printed in perfect registration should be, for example, in multi-color printing, be in a multistage machine several printing units, also called stands, connected in series. Behind each stand, the track runs through one Dryer and cooling and is then fed to the next printing unit, where a new image is printed so that it is the right position in relation to has the previously printed image. This is controlled by registration marks, which are mounted on the substrate and are optically scanned.
  • the pressure cylinders must be driven exactly at the same speed, and they must also be exactly the same diameter. If the Diameter of the impression cylinder only slightly by a few tenths of a millimeter differ, are also the print lengths of the printed images, accordingly the circumference of the printing cylinder, slightly different from each other, and also the transport speeds differ with which the web is transported through the various printing units. This can cause the web between the individual printing units more and more sagging or, on the contrary, too tense. If you have the Speeds the printing cylinder so that the web train remains constant, accumulate the different print lengths become one over time noticeable registration error.
  • the object of the invention is to provide a control system that has a register-accurate Control possible with constant web tension. Furthermore, a method be created, with a printing process in which a register-accurate control takes place at a constant train, be initiated and carried out can.
  • the speed of rail transport is not in a printing unit then more by the speed of the impression cylinder, but by the speed of the Presseurs determined. There may be differences in the peripheral speeds of impression cylinder and impression roller revealed by a slight Slip of the printing cylinder are compensated relative to the substrate. requirement is that the web adheres better to the peripheral surface of the impression roller as on the peripheral surface of the printing cylinder. This can be done, for example achieve that the web above the impression roller via a guide roller is guided so that it wraps around the impression roller on a larger circumferential length. Optionally, however, also satisfies a sufficient pressure force between impression roller and impression cylinder in conjunction with a surface finish of the press driver, which ensures good adhesion.
  • An inventive method with which initiated such a printing operation and can be performed, has the features of the independent claim 5 on.
  • the gravure printing machine determines the drive of the impression roller of the first during the printing operation
  • Printing unit the web speed for the drives of the other impression rollers.
  • the drives of the impression rollers in the downstream printing units are controlled in a closed loop so that the web train remains constant.
  • the web tension in front of the respective printing unit is measured by means of a measuring roller, and the drive of the impression roller is dependent on the measured Railway train varies. In this way it is possible to get across all printing works Ensure uniform and constant web tension.
  • the drive of the printing cylinder of the first printing unit determines the Speeds of the downstream pressure cylinder.
  • all printing cylinders run with exactly the same speed. If the diameter of a downstream Impression cylinder is a little too big, it comes in the relevant Printing unit to a slip between printing cylinder and web. This will However, the printed image does not noticeably affect.
  • an optical Sensors are scanned behind the printing cylinder, the registration marks, and it becomes a registration error ⁇ of the newly printed image with respect to the registration mark measured. The impression cylinder is then accelerated or decelerated for a short time operated to compensate for the registration error.
  • the drives of all impression rollers and impression cylinders are preferably electronic controlled servo drives, with which a function ⁇ (t), the angle of rotation ⁇ describes at time t, pretend and vary as needed.
  • ⁇ the angle of rotation ⁇
  • three phases can be distinguished: starting, where the web is brought to the desired speed is not printed yet; the printing, in which each impression cylinder generates a printed image and the speeds are adjusted so that registration accuracy is achieved; and the printing, in which the machine is stable runs and only the gradually accumulated registration errors and gradually accumulated deviations from the setpoint of the train are compensated.
  • the steps of starting and pressing in per se known Way are driven according to the invention and the train is regulated accordingly.
  • the first printing unit is preceded by a drawing-in, the at Start the web speed determined.
  • the drives of the impressioners of all Downstream printing units are controlled by the speed in control loops adapted so that adjusts the desired train everywhere.
  • the drive of the first impression roller is determined by the web tension, the is measured with the measuring roller between intake and first printing unit. After starting, this measuring roller controls only the drive of the intake, and the first impression roller runs at a constant speed.
  • the drives of the impression rollers and the infeed are in regulated as described until all speeds are adjusted correctly. Then begins the printing, in which the angular positions of the impression rollers and the Infeed mechanism only be incrementally adjusted to target / actual deviations to balance the train.
  • the regulation of the drives of the printing cylinder takes place during proofing by the first impression cylinder sets the speed for the other pressure cylinder, and the Drives of the other printing cylinders are using optical sensors, the registration marks Scan, so regulated that results in registration accuracy of the pressure.
  • the single drawing figure shows schematically the construction of a multi-stage gravure printing machine with three printing units.
  • the gravure printing machine shown has a first printing unit 10 and two others Printing units 12a and 12b on.
  • a settlement 18 At the beginning of the path of the printing web 16 through the gravure printing machine is a settlement 18, the drive by a control loop 20 as a function of the height of a dancer roller 22 is regulated.
  • the printing web 16 then passes through a gap between two cylinders an infeed 14 and passes a first measuring roller 28, the railway train measures.
  • the printing web 16 passes around a guide roller 30 and a impression roller 32, and then passes through a gap between the impression roller 32 and a first pressure cylinder 34 guided.
  • On the impression cylinder 34 are a Paint tray 36 and a doctor blade 38 shown.
  • a control circuit 40 controls the drive of the impression roller 32 as a function of the Web tension measured by the measuring roller 28.
  • the measuring roller 28 is part of a control circuit 42, which controls the drive of the intake mechanism 14.
  • In printing mode then determined the drive of the impression roller 32 the web speed of the printing web 16 for the printing unit 10 and the other printing units 12a and 12b.
  • the printing web passes through a dryer 44 and a cooling 46.
  • the train is with a Measuring roller 48 measured before the printing web via a guide roller 50th and a impression roller 52 is guided past a printing cylinder 54.
  • the measurement the web train through the measuring roller 48 goes into a control circuit 56th a, which regulates the drive of the impression roller 52.
  • the measured register errors are determined by a control loop 60 of the drive of the printing cylinder 54 balanced. Close again a dryer 62 and a cooling 64 at.
  • the following printing unit 12b is constructed as well as the printing unit 12a.
  • the printing web 16 is wound on a 66 wound, the drive by a control circuit 68 in dependence is controlled by the height of a dancer roller 70.
  • the web speed of Compression web 16 specifies and the control circuits 40 and 56, the drives of the impression rollers 32 and 52 regulate, the control circuit 40 is inactive during printing operation. Instead, fixes here the control circuit 42 the drive of the intake 14, while the drive of the printing press 32 the web speed for the entire gravure printing machine pretends.
  • the pressure cylinder 34 specifies the rotational speed for all further pressure cylinders 54.
  • pressure is on the optical sensors 58 and the control circuits 60th the drive of the printing cylinder 54 are each controlled so that registration accuracy of the Pressure is achieved.
  • the respective control circuits 42, 56 and 60 are then operated so that their time-dependent target angular position is incrementally corrected if a deviation determined by the target value of the web tension on the respective measuring roller 28 or 48 or if the optical scanning of the register marks at the respective optical sensor 58 gives a registration error.
  • each Printing unit 10, 12a or 12b is by no means limited to this number. It is also a different arrangement or composition of the elements each Printing unit 10, 12a or 12b conceivable.
  • on the guide rollers 30 and 50 are waived if by a sufficient pressure force between impression roller and impression cylinder in conjunction with a surface finish of the impression press, which ensures good adhesion is that the impression roller dictates the web speed of the printing web 16.
  • In the first Printing unit 10 can optionally dispense with the drive of the impression roller 32 be, since here anyway an equal peripheral speed of impression roller 32nd and impression cylinder 34 is desired.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP03001669A 2003-01-25 2003-01-25 Procédé et machine d'impression en héliogravure avec plusieurs unités Withdrawn EP1440799A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03001669A EP1440799A1 (fr) 2003-01-25 2003-01-25 Procédé et machine d'impression en héliogravure avec plusieurs unités
US10/688,554 US20040144272A1 (en) 2003-01-25 2003-10-17 Multiple-Stand Gravure Printing Machine and Gravure Printing Process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03001669A EP1440799A1 (fr) 2003-01-25 2003-01-25 Procédé et machine d'impression en héliogravure avec plusieurs unités

Publications (1)

Publication Number Publication Date
EP1440799A1 true EP1440799A1 (fr) 2004-07-28

Family

ID=32524202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001669A Withdrawn EP1440799A1 (fr) 2003-01-25 2003-01-25 Procédé et machine d'impression en héliogravure avec plusieurs unités

Country Status (2)

Country Link
US (1) US20040144272A1 (fr)
EP (1) EP1440799A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052820A1 (de) * 2004-11-02 2006-05-04 Koenig & Bauer Ag Verfahren zur Korrektur von Passerabweichungen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100953475B1 (ko) * 2008-02-19 2010-04-16 건국대학교 산학협력단 전자소자 연속공정 롤투롤 인쇄를 위한 초정밀 레지스터제어 방법
EP2488429B1 (fr) * 2009-10-13 2019-05-08 M-Solv Limited Appareil et procédé pour traiter de longs substrats souples et continus
JP5623674B2 (ja) * 2011-06-01 2014-11-12 ケーニツヒ ウント バウエル アクチエンゲゼルシヤフトＫｏｅｎｉｇ ＆ ＢａｕｅｒＡｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 印刷機及びウェブ張力を調整する方法
CN111421970A (zh) * 2020-04-07 2020-07-17 深圳市万德环保印刷设备有限公司 一种原纸高速预印生产线

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142501A (en) * 1937-03-11 1939-01-03 Stoessel Method and means for maintaining register in multiunit presses
US2317095A (en) * 1940-12-27 1943-04-20 News Syndicate Co Inc Method and means for maintaining register in multiunit presses
GB552805A (en) * 1941-02-03 1943-04-27 News Syndicate Co Inc Improvements in or relating to apparatus for automatically maintaining register in multi-unit rotary web press
JP2000309088A (ja) * 1999-04-27 2000-11-07 Dainippon Printing Co Ltd 印刷見当制御方法および装置
EP1132203A1 (fr) * 2000-02-10 2001-09-12 Bobst S.A. Procede de mise en reperage automatique d'impressions dans une machine rotative et dispositif pour la mise en oeuvre du procede

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142501A (en) * 1937-03-11 1939-01-03 Stoessel Method and means for maintaining register in multiunit presses
US2317095A (en) * 1940-12-27 1943-04-20 News Syndicate Co Inc Method and means for maintaining register in multiunit presses
GB552805A (en) * 1941-02-03 1943-04-27 News Syndicate Co Inc Improvements in or relating to apparatus for automatically maintaining register in multi-unit rotary web press
JP2000309088A (ja) * 1999-04-27 2000-11-07 Dainippon Printing Co Ltd 印刷見当制御方法および装置
EP1132203A1 (fr) * 2000-02-10 2001-09-12 Bobst S.A. Procede de mise en reperage automatique d'impressions dans une machine rotative et dispositif pour la mise en oeuvre du procede

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 14 5 March 2001 (2001-03-05) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052820A1 (de) * 2004-11-02 2006-05-04 Koenig & Bauer Ag Verfahren zur Korrektur von Passerabweichungen
DE102004052820B4 (de) * 2004-11-02 2016-04-21 Koenig & Bauer Ag Verfahren zur Korrektur von Passerabweichungen

Also Published As

Publication number Publication date
US20040144272A1 (en) 2004-07-29

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