EP0796733A1 - Presse à imprimer, de préférence flexographique - Google Patents

Presse à imprimer, de préférence flexographique Download PDF

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Publication number
EP0796733A1
EP0796733A1 EP97102078A EP97102078A EP0796733A1 EP 0796733 A1 EP0796733 A1 EP 0796733A1 EP 97102078 A EP97102078 A EP 97102078A EP 97102078 A EP97102078 A EP 97102078A EP 0796733 A1 EP0796733 A1 EP 0796733A1
Authority
EP
European Patent Office
Prior art keywords
printing
roller
anilox roller
gear
anilox
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.)
Granted
Application number
EP97102078A
Other languages
German (de)
English (en)
Other versions
EP0796733B1 (fr
Inventor
Fritz Achelpohl
Günter Rogge
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0796733A1 publication Critical patent/EP0796733A1/fr
Application granted granted Critical
Publication of EP0796733B1 publication Critical patent/EP0796733B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F13/0008—Driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing

Definitions

  • the invention relates to a printing press, preferably a flexographic printing press, with an impression cylinder mounted in a printing press frame, which is provided with a drive, and with at least one printing unit, which consists of a driven printing roller that can be adjusted to the impression cylinder and an ink application or Anilox roller exists, which interacts with a flushing inking unit, the impression cylinder, the printing and anilox roller each having coaxial gears for their drive, the anilox roller is provided with a special continuous drive and the printing roller gearwheel with the impression cylinder gearwheel and in each case by parallel displacement of the printing roller and the anilox roller the anilox roller gear can be coupled to the printing roller gear.
  • a flexographic printing machine of this type is known for example from DE-PS 34 37 216. 7 of the drawing, the drive of the impression cylinder and the drive of the printing roller and the anilox roller of only one printing unit of the known printing press will be briefly described below.
  • the shaft journals of the impression cylinder 3 are mounted, which are only indicated by the dashed center line.
  • the central wheel 4 is keyed onto the right-hand shaft journal of the impression cylinder 3.
  • the central wheel 4 is driven by the main drive motor 5, which is an electric motor, via the output pinion 6 and the intermediate gear wheels 7 to 10, which form the corresponding gear stages.
  • the gears 8 and 9 are wedged onto a shaft 11 indicated by dashed lines, which is also mounted in the printing machine frame.
  • the printing roller 12 and the anilox roller 13 are mounted in bearing blocks of carriages which are displaceably guided on consoles of the printing machine frame, as has been described in DE-PS 34 37 216.
  • the pressure roller gear 14 and the anilox roller gear 15 are placed on the right, through the bearing blocks of the pressure roller 12 and the anilox roller 13, which are also only indicated by dashed lines, the anilox roller gear 15 being mounted on the anilox roller shaft via a freewheel 16.
  • the pressure roller and anilox roller slides perform a long-stroke movement to replace a pressure roller and only a short-stroke movement to move to the "print-down position", in which the cylinders and rollers are moved away from each other, but the teeth of which are still loose with one another are engaged.
  • the anilox roller 13 usually continues to run at a lower speed in the print-down position than in the printing operation, in order to prevent the printing ink from drying in or drying out during shorter printing interruptions.
  • This continuous drive consists of the servo motor 17, which drives the anilox roller 13 via the left-hand shaft journal via the gear stage consisting of the gears 18, 19 and the freewheel 20.
  • This continuous drive is possible because the anilox roller 13 can be rotated in one direction because of the right freewheel 16 even when the anilox roller gear 15 is blocked.
  • the forward drive does not hinder the drive of the anilox roller 13 via the central wheel 4 and the pressure roller gear 14 in normal printing operation, because the drive gear 19 is also supported via a freewheel 20 on the left-hand shaft journal of the anilox roller 13.
  • This flushing inking unit consists of a doctor blade carrier 21 which can be adjusted to the anilox roller 13 and which consists of a profiled strip.
  • the bar of the doctor blade carrier 21 is provided with a channel forming the interior of the ink chamber.
  • a bore 22 feeding the printing ink opens into this gutter in the central region.
  • bores 23 and 24 for discharging the printing ink.
  • the end faces of the gutter edges of the doctor blade carrier are chamfered in opposite directions in a roof shape. Doctor blades are attached to these end faces, which can be adjusted to the anilox roller 13 by brushing or brushing.
  • Doctor devices of this type are known, for example, from German patent applications 195 16 223.3 and 195 16 224.2, to which reference is made for a more detailed description of the doctor device.
  • doctor roller with during the rinsing for the purpose of cleaning the doctor device high speed that is at a speed which is above the speed during printing operation, is driven one or more times in the opposite direction of rotation.
  • the object of the invention is to provide a printing machine of the type specified in the introduction, in which the anilox roller can be driven reversibly both for the purpose of continuing to run at a lower running speed compared to the operating speed and for the purpose of rinsing the doctor device at a higher speed than the operating speed .
  • this object is achieved in a printing press of the type specified at the outset in that the anilox roller can be coupled to the anilox roller gear by a switchable clutch and can be coupled to a speed-variable and reversible anilox roller drive by a second switchable clutch. Since in the printing machine according to the invention the anilox roller gear is not connected to the shaft journal of the anilox roller by a free-wheel, but to this via a switchable coupling, the anilox roller can be operated in both directions of rotation in any direction independently of the printing machine drive and also when the printing machine is at a standstill Drive speed, i.e. both with the lower continuous speed and with the higher speed for rinsing.
  • DE-PS 34 37 216 it has been described that it is a particular problem in printing machines and especially flexographic printing machines to align them with each other after changing the forme cylinders.
  • a further object of the invention is therefore to create a printing press, preferably a flexographic printing press, according to the preamble of claim 2, in which a simple appropriate alignment of the printing cylinders after changing them is possible.
  • this object is achieved in that only the pressure roller gear can be coupled by parallel displacement with the impression cylinder gear and that the anilox roller is provided with its own controllable, speed-variable and reversible drive and can be coupled to the pressure roller gear by means of a gear.
  • the printing rollers are driven by the central wheel with which the printing roller gears mesh during printing operation.
  • the anilox roller is also driven in printing operation by the anilox roller drive, and the speed of the anilox roller can be controlled by a computer.
  • the drive motor for the anilox roller drive expediently consists of a stepper motor.
  • the anilox roller can thus be driven at the same peripheral speed as the printing roller.
  • the latter can be driven at the desired lower running speed.
  • the anilox roller can be reversibly driven at the higher speeds, for example with at a higher speed than that during printing.
  • a particular advantage of this embodiment according to the invention is that the anilox roller drives can be used after a change of the printing cylinders to align the printing cylinders of the several printing units with each other in a register-appropriate manner.
  • the impression cylinder gearwheels are provided with a mark, for example an identification hole, by means of which the impression cylinder can be turned into a basic position in relation to the printing press frame.
  • the anilox roller drives start the individual printing cylinders into positions in which they are aligned to each other.
  • the individual stepper motors of the anilox roller drives are controlled by a computer in which the basic positions and the individual angles of rotation for aligning the printing rollers are stored in their appropriate positions.
  • the printing roller gear is brought into coupling engagement with a gear of the anilox roller.
  • the coupling and uncoupling of the anilox roller gear with the printing roller gear is expediently carried out by axially displacing one of these gears.
  • the computer ensures that the gears engage in the correct angle without teeth colliding.
  • the anilox roller is in turn provided with its own controllable, speed-variable and reversible drive and that the printing roller gear can only be coupled to the anilox roller gear and the anilox roller gear by a switchable clutch from the Anilox roller is detachable.
  • the printing roller in printing operation is no longer driven by the central wheel driving the impression cylinder, but rather via the anilox roller drive. All of the advantages of the printing press according to the second embodiment of the invention can be achieved by this configuration.
  • a speed deviating from the peripheral speed of the impression cylinder can be issued via the anilox roller drive during the printing operation of the printing roller, so that, due to the relative speed that can be achieved thereby, unwinding errors of the web to be printed can be compensated for.
  • the print image can be stretched in the circumferential direction by a slower rotation of the printing cylinder and compressed by a higher speed.
  • FIGS. 1 to 6 designate identical parts of a known flexographic printing machine according to FIG. 7, the same reference symbols are used.
  • the drive according to FIGS. 1 and 2 differs from the drive described with reference to FIG. 7 in that the anilox roller gear 15 with the right-hand shaft journal of the anilox roller 13 by a switchable clutch 20 and the motor 31 with the pinion 18 of the gear stage 18, 19 can be connected by a second switchable coupling 32. Furthermore, a rinse inking unit 34 can be set on the anilox roller 13, as has been described with reference to FIG. 8.
  • Fig. 1 the drive is shown in a position in which the carriages supporting the printing roller 12 and the anilox roller 13 have been moved away from the impression cylinder 3 by wide-stroke movements to such an extent that the printing roller gear no longer engages with the central wheel 4 and the anilox roller gear 15 is no longer in engagement with the pressure roller gear 14, so that the pressure roller 12 could be lifted to change it.
  • the anilox roller 13 can be driven with the main drive at a standstill during the washing or rinsing process via the motor 31 in a reversing manner at a speed which is above the speed during the printing operation.
  • the Clutch 32 engaged via the central printing press control so that the motor 31 running in both directions of rotation drives the anilox roller 13 at the desired speed in the desired direction of rotation via the gear stage 18, 19.
  • the anilox roller 13 would be able to be driven both at a lower running speed and at a higher speed during the rinsing process when the main drive is at a standstill, since the Anilox roller 13 is uncoupled from the anilox roller gear 15 by the first clutch 30.
  • the anilox roller gear 15 is coupled to the anilox roller 13 by closing the clutch 30 and the motor 31 is uncoupled by opening the clutch 32, which could also be arranged elsewhere.
  • the state of the drive during printing is shown in FIG. 2.
  • the motor 31 can be controlled by the central machine control, for example a computer, and is designed to be stronger in accordance with the higher requirements to be met.
  • the right-hand shaft journal of the anilox roller 13 is provided with a gearwheel 41, which can be brought into engagement with the teeth of the gearwheel 41 only by axial displacement after the disengagement of the gearwheels 4 and 14 and corresponding movement or alignment of the printing roller 12 and the anilox roller 13 , so that the anilox roller drive of the forme cylinder 12 can be aligned with the printing rollers of the other printing units after a change to the presetting of the registers.
  • the pressure roller gear 14 is brought out of engagement with the gear 41 of the anilox roller again by axial displacement and the pressure roller is moved into its printing position against the impression cylinder 3 so that the toothings 4, 14 come into engagement with one another in the correct position.
  • a third embodiment of the drive according to the invention can be seen, which differs from the embodiment according to FIGS. 3 and 4 essentially only in that even during the printing operation, the drive of the printing roller 12 via the servo motor 50 for driving the anilox roller 13 takes place.
  • the central wheel 51 is therefore designed with a correspondingly smaller diameter, so that it no longer comes into engagement with the printing roller gear 14 during printing operation.
  • the anilox roller gear 15 can be uncoupled from the anilox roller gear 15 by means of a clutch 52.
  • the pressure roller gear 14 can be brought into and out of engagement with the anilox roller gear 14 by appropriate axial displacement on a multi-spline shaft journal, which is necessary in order to make a presetting to bring all the printing rollers into their basic positions, in which they are aligned in their angles of rotation with respect to the machine frame due to the identification marks.
  • the servomotors for the anilox roller drives are selected in such a way that their performance corresponds to the requirements placed on them and can be controlled by the machine control for the angular adjustment of the printing rollers.
  • the invention has only been described above on a printing unit of a flexographic printing press. The same applies, however, to the other printing units in multi-color printing machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Screen Printers (AREA)
EP97102078A 1996-03-20 1997-02-10 Presse à imprimer, de préférence flexographique Expired - Lifetime EP0796733B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19611048A DE19611048A1 (de) 1996-03-20 1996-03-20 Druckmaschine, vorzugsweise Flexodruckmaschine
DE19611048 1996-03-20

Publications (2)

Publication Number Publication Date
EP0796733A1 true EP0796733A1 (fr) 1997-09-24
EP0796733B1 EP0796733B1 (fr) 1999-12-22

Family

ID=7788909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102078A Expired - Lifetime EP0796733B1 (fr) 1996-03-20 1997-02-10 Presse à imprimer, de préférence flexographique

Country Status (10)

Country Link
US (1) US5787811A (fr)
EP (1) EP0796733B1 (fr)
JP (1) JPH1024558A (fr)
KR (1) KR970064921A (fr)
CN (1) CN1172728A (fr)
BR (1) BR9701344A (fr)
CZ (1) CZ51097A3 (fr)
DE (2) DE19611048A1 (fr)
ES (1) ES2140924T3 (fr)
TW (1) TW368477B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0983851A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Système court pour l'application d'une substance fluide
EP0983849A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Système de transfert
EP0983850A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Procédé pour l'influence du taux de transmission
EP1093913A2 (fr) * 1999-10-23 2001-04-25 Koenig & Bauer Aktiengesellschaft Dispositf pour entraíner un groupe de vernissage
DE19840601C2 (de) * 1998-09-05 2001-10-11 Koenig & Bauer Ag Auftragwerk für Feuchtflüssigkeit
WO2002024458A1 (fr) * 2000-09-20 2002-03-28 Koenig & Bauer Aktiengesellschaft Unite d'impression
WO2007034159A2 (fr) 2005-09-21 2007-03-29 Focus Label Machinery Ltd Imprimante
WO2014020083A2 (fr) * 2012-07-31 2014-02-06 Windmöller & Hölscher Kg Procédé de réglage de la longueur d'impression d'une image d'impression dans une rotative polychrome

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IT1305050B1 (it) * 1998-12-04 2001-04-10 Giuseppe Mazzotti Macchina da stampa per formati di stampa variabili e relativo metododi stampa
DE10000903A1 (de) 1999-02-05 2000-08-10 Heidelberger Druckmasch Ag Verfahren zum Betrieb einer Druckmaschine und Druckmaschine zur Durchführung des Verfahrens
US6283024B1 (en) * 1999-03-31 2001-09-04 Express Card & Label Co., Inc. Quick change print station for central impression presses
EP1147889A3 (fr) * 2000-04-14 2006-01-18 Komori Corporation Structure de rouleau dans une machine à imprimer.
EP1197333B1 (fr) * 2000-10-13 2006-03-01 Fischer & Krecke GmbH & Co. Machine d'impression flexographique avec un dispositif de nettoyage pour le cylindre d'impression
US7100507B1 (en) 2000-11-06 2006-09-05 Greydon, Inc. Flexographic rotary platen printing press
US6644185B1 (en) * 2000-11-06 2003-11-11 Greydon Inc. Flexographic rotary platen printing press
US20030070679A1 (en) * 2001-06-01 2003-04-17 Boehringer Ingelheim Pharma Kg Capsules containing inhalable tiotropium
DE10144563A1 (de) 2001-09-11 2003-03-27 Heidelberger Druckmasch Ag Druckmaschine und Verfahren zum Betreiben eines Farbwerks
DK176859B1 (da) * 2003-04-01 2010-01-04 Tresu Anlaeg As Trykværk, trykmaskine med sådan trykværk, værktöj til brug i trykmaskinen samt fremgangsmåde til brug af trykværket for trykning med flexofarver og lak
US7207268B2 (en) * 2004-07-30 2007-04-24 Nu Tech Coatings Llc Apparatus and method of enhancing printing press cylinders
CN1853929B (zh) * 2005-04-29 2011-05-18 海德堡印刷机械股份公司 印刷机及其运行方法
EP1728628A1 (fr) * 2005-06-01 2006-12-06 Kba-Giori S.A. Machine d'impression typographique à entraînements indépendants
US20060272534A1 (en) * 2005-06-03 2006-12-07 Daniel Lieberman Systems and methods for printing surface relief structures
DE102006011802B4 (de) * 2006-03-15 2014-06-12 Zf Friedrichshafen Ag Kupplungseinheit für eine Druckmaschine
DE102006048286B4 (de) * 2006-10-11 2011-07-07 manroland AG, 63075 Verfahren und Antrieb zum Antreiben eines Druckwerks mit einem Kurzfarbwerk in einer Verarbeitungsmaschine
DE102008000257B4 (de) * 2008-02-08 2010-05-12 Koenig & Bauer Aktiengesellschaft Farbwerk einer Druckmaschine
DE102008025345A1 (de) * 2008-05-27 2009-12-03 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Druckmaschine
US20100122638A1 (en) * 2008-11-18 2010-05-20 C.G. Bretting Manufacturing Co., Inc. Flexographic Printing Apparatus And Method
CN101885265A (zh) * 2010-07-02 2010-11-17 上海美声服饰辅料有限公司 展色仪
CN102059846B (zh) * 2010-11-17 2012-10-10 东莞市中崎机械有限公司 一种轮转印刷机的卧式印刷单组
CN104985915A (zh) * 2015-08-17 2015-10-21 福建省晋江市佶龙机械工业有限公司 一种多功能壁纸机的柔版印刷头
US11685838B2 (en) 2016-06-14 2023-06-27 Sun Chemical Corporation Cleaning solution
JP6982062B2 (ja) 2016-08-23 2021-12-17 ベーウントエル・インダストリアル・オートメイション・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 機械の駆動部を制御する方法
CN107187180B (zh) * 2017-07-13 2022-10-14 宁波天弘电力器具有限公司 一种高精度跑台印花机的印刷部件
CN113815310B (zh) * 2021-08-06 2023-01-31 河南桐裕印务有限公司 一种印刷机胶辊的清洗装置

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GB2143474A (en) * 1983-06-06 1985-02-13 Cruiser Newspaper Components I Printing machine
DE3432572A1 (de) * 1983-09-14 1985-03-28 W.R. Grace & Co., New York, N.Y. Rotationsdruckpresse
DE3437216A1 (de) 1984-10-10 1986-04-10 Windmöller & Hölscher, 4540 Lengerich Flexodruckmaschine mit mehreren farbwerken und formzylindern
EP0325445A2 (fr) * 1988-01-22 1989-07-26 Cobden Chadwick Limited Machines d'impression
GB2281534A (en) * 1993-09-07 1995-03-08 Scm Container Mach Ltd A drive system for a printing machine

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US3709147A (en) * 1970-12-03 1973-01-09 W Granger Ink transfer cylinder mounting with adjustable drive clutch
US5083511A (en) * 1990-05-21 1992-01-28 Paper Converting Machine Company Apparatus and method for printing plate cylinder--impression cylinder registration
DE4308492A1 (de) * 1993-03-17 1994-09-22 Windmoeller & Hoelscher Druckmaschine
DE19516223C2 (de) * 1995-05-03 1997-03-20 Windmoeller & Hoelscher Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine
DE19516224C2 (de) * 1995-05-03 1997-03-20 Windmoeller & Hoelscher Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
GB2143474A (en) * 1983-06-06 1985-02-13 Cruiser Newspaper Components I Printing machine
DE3432572A1 (de) * 1983-09-14 1985-03-28 W.R. Grace & Co., New York, N.Y. Rotationsdruckpresse
DE3437216A1 (de) 1984-10-10 1986-04-10 Windmöller & Hölscher, 4540 Lengerich Flexodruckmaschine mit mehreren farbwerken und formzylindern
EP0325445A2 (fr) * 1988-01-22 1989-07-26 Cobden Chadwick Limited Machines d'impression
GB2281534A (en) * 1993-09-07 1995-03-08 Scm Container Mach Ltd A drive system for a printing machine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840601C2 (de) * 1998-09-05 2001-10-11 Koenig & Bauer Ag Auftragwerk für Feuchtflüssigkeit
EP0983851A3 (fr) * 1998-09-05 2000-05-17 Koenig & Bauer Aktiengesellschaft Système court pour l'application d'une substance fluide
EP0983850A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Procédé pour l'influence du taux de transmission
EP0983849A3 (fr) * 1998-09-05 2000-05-10 Koenig & Bauer Aktiengesellschaft Système de transfert
EP0983851A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Système court pour l'application d'une substance fluide
EP0983850A3 (fr) * 1998-09-05 2000-05-24 Koenig & Bauer Aktiengesellschaft Procédé pour l'influence du taux de transmission
EP0983849A2 (fr) * 1998-09-05 2000-03-08 Koenig & Bauer Aktiengesellschaft Système de transfert
EP1093913A2 (fr) * 1999-10-23 2001-04-25 Koenig & Bauer Aktiengesellschaft Dispositf pour entraíner un groupe de vernissage
EP1093913A3 (fr) * 1999-10-23 2001-09-05 Koenig & Bauer Aktiengesellschaft Dispositf pour entraíner un groupe de vernissage
WO2002024458A1 (fr) * 2000-09-20 2002-03-28 Koenig & Bauer Aktiengesellschaft Unite d'impression
US6736060B2 (en) 2000-09-20 2004-05-18 Koenig & Bauer Aktiengesellschaft Printing unit
WO2007034159A2 (fr) 2005-09-21 2007-03-29 Focus Label Machinery Ltd Imprimante
WO2007034159A3 (fr) * 2005-09-21 2007-10-18 Focus Label Machinery Ltd Imprimante
WO2014020083A2 (fr) * 2012-07-31 2014-02-06 Windmöller & Hölscher Kg Procédé de réglage de la longueur d'impression d'une image d'impression dans une rotative polychrome
WO2014020083A3 (fr) * 2012-07-31 2014-03-27 Windmöller & Hölscher Kg Procédé de réglage de la longueur d'impression d'une image d'impression dans une rotative polychrome
US9789680B2 (en) 2012-07-31 2017-10-17 Windmoeller & Hoelscher Kg Method for adjusting the print repeat length of a print image in a multicolor rotary printing machine

Also Published As

Publication number Publication date
KR970064921A (ko) 1997-10-13
EP0796733B1 (fr) 1999-12-22
CZ51097A3 (en) 1997-10-15
DE59700870D1 (de) 2000-01-27
CN1172728A (zh) 1998-02-11
TW368477B (en) 1999-09-01
JPH1024558A (ja) 1998-01-27
DE19611048A1 (de) 1997-09-25
BR9701344A (pt) 1998-11-10
US5787811A (en) 1998-08-04
ES2140924T3 (es) 2000-03-01

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