EP2782757B1 - Groupe d'impression flexographique avec système de levier coudé - Google Patents

Groupe d'impression flexographique avec système de levier coudé Download PDF

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Publication number
EP2782757B1
EP2782757B1 EP12769913.0A EP12769913A EP2782757B1 EP 2782757 B1 EP2782757 B1 EP 2782757B1 EP 12769913 A EP12769913 A EP 12769913A EP 2782757 B1 EP2782757 B1 EP 2782757B1
Authority
EP
European Patent Office
Prior art keywords
printing unit
flexographic printing
cylinder
forme cylinder
unit according
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.)
Not-in-force
Application number
EP12769913.0A
Other languages
German (de)
English (en)
Other versions
EP2782757A1 (fr
Inventor
Dieter Bangel
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.)
Gallus Druckmaschinen GmbH
Original Assignee
Gallus Druckmaschinen 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 Gallus Druckmaschinen GmbH filed Critical Gallus Druckmaschinen GmbH
Publication of EP2782757A1 publication Critical patent/EP2782757A1/fr
Application granted granted Critical
Publication of EP2782757B1 publication Critical patent/EP2782757B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/085—Cylinders with means for preventing or damping vibrations or shocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/44—Arrangements to accommodate interchangeable cylinders of different sizes to enable machine to print on areas of different sizes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters
    • 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
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the invention relates to a printing unit with the preamble features of claim 1 and a narrow web label printing machine with the features of claim 9.
  • printing machines for printing labels and cartons
  • great flexibility or variability is increasingly desired in order to be able to carry out as many different types of printing jobs as possible, in particular by producing special optical effects through the printed image or the printed text.
  • printing machines are used which process a narrow web of a printing material and have a number of connection platforms or interfaces, on each of which a functional unit or a process module can be detachably received for printing with a specific printing method.
  • a functional unit or a process module can be detachably received for printing with a specific printing method.
  • a printing press is in the document US 4,384,522 described.
  • the individual functional units can work with mutually different printing methods.
  • Multi-printing presses are known in series construction which permit the detachable receipt of a number of functional units or process modules on a number of interconnect platforms.
  • the functional units may contain, among other things, printing units or parts of printing units in cassettes or essays which operate according to a letterpress method, a flexographic printing method, a screen printing method, an offset printing method, a gravure printing method or an inkjet printing method.
  • functional units processing units
  • Printing machines that can operate on a variety of different printing processes are also referred to as combination printing machines or hybrid printing machines.
  • the DE 103 43 411 B4 shows a rotary printing machine with a flexographic printing unit.
  • On the form cylinder of such flexographic printing usually printing plates, so-called clichés are applied.
  • the edges of the plate cause a so-called gap blow, also referred to as a channel blow, wherein the pressure between the forme cylinder and the adjacent cylinder abruptly drops or increases.
  • This gap can lead to visible disturbances in the print image.
  • a flexographic printing according to the preamble of claim 1 is known from US Pat. No. 6,422,143 B1 known, which also teaches the bias of the forme cylinder via a pneumatic cylinder.
  • Object of the present invention is to provide a printing unit in which the Gaptsch and its effects are reduced, can be used in the form of cylinders of different diameters and can be easily replaced in the form of cylinder.
  • the printing unit according to the invention which is designed as a flexographic printing unit, has an anilox roller, a forme cylinder and an impression cylinder, wherein the anilox roller contacts the forme cylinder and a pressure gap is formed between the forme cylinder and impression cylinder, and a printing material is guided.
  • the printing unit is suitable for use with cylinders of different diameters.
  • the axes of rotation of the anilox roller and the forme cylinder are arranged independently of the diameter of the forme cylinder in a horizontal plane and the axes of rotation of the forme cylinder and impression cylinder in a vertical plane, so that diametrical contact points exist between the cylinders.
  • the printing unit according to the invention has at least one toggle lever system for applying a biasing force to the forme cylinder.
  • two toggle systems are provided, each a toggle system for the drive side and a toggle lever system for the operator side of the printing unit.
  • the use of at least one toggle lever system for applying the biasing force has a number of advantages: a secure holding a set position of the toggle lever of the toggle lever system is possible; Toggle levers can generate large closing forces; Knee levers can very well absorb external forces such as gap blow; Toggle levers can be controlled and regulated very precisely; Toggle levers have short closing cycles; Toggle levers can be constructed cost-effectively and compactly, making them easy to integrate into the printing unit; Toggle levers are very well suited for the linear movements and thus allow a good adaptation of the toggle lever system to cylinders with different diameters.
  • a respective end of the anilox roller and a respective end of the forme cylinder is associated with a respective bearing, wherein each drive-side and operation side bearings of anilox roller and form cylinder are arranged in a common bearing plate.
  • the common storage of anilox roller and forme cylinder in a bearing plate allows a decoupling of the pulses generated by Gaptsch.
  • the printing unit has at least one actuator, which is assigned to the two bearing plates, for height adjustment of the bearing plates as a function of the diameter of the forme cylinder.
  • the bearings of the forme cylinder and anilox roller can be jointly raised by the at least one actuator so far that there is a pressure gap between the forme cylinder and the impression cylinder.
  • the above-mentioned rectangular orientation of the cylinder to each other does not change.
  • the conditional by the invention Cylinder arrangement advantageously designed force flow at a Gapschlag is thus independent of the diameter of the forme cylinder.
  • a respective toggle lever system has two levers, wherein a respective lever is connected at its one end to the bearing of the forme cylinder and at its other end to an actuator. From the actuator is thus applied via the toggle a bias on the bearing of the forme cylinder.
  • a respective actuator of the toggle lever system actuates both levers of the respective toggle lever system.
  • measuring elements are provided in the bearings of the forme cylinder, more precisely: in the bearing shells, in particular strain gauges, for pressure force measurement. Due to the arrangement of the measuring elements both in the drive-side and in the operator-side bearing of the forme cylinder, the pressure force in both bearings can be determined independently.
  • the printing unit is associated with an evaluation and control unit, which is connected via data lines with the measuring elements, the at least one actuator and possibly the at least one actuator.
  • the evaluation and control unit serves at least the evaluation of the measurement results of the measuring elements and the actuation of the actuators.
  • a value table can be stored, which allows a so-called Disteaching the pressure force adjustment, d. H. an automatic adjustment of the pressure force.
  • a desired pressure force can be stored in the value table, which depends on the printing plate, tape, cliché, substrate, etc. is specified.
  • the invention also relates to a narrow web label printing machine having at least one printing unit as described above.
  • Fig. 1a shows an inventive printing unit 10, which is designed as a flexographic printing unit.
  • the printing unit 10 has a form cylinder 2, an anilox roller 1 and a counter-pressure cylinder 3.
  • a doctor blade 5 is employed to the anilox roller 1, a doctor blade 5 is employed.
  • the anilox roller 1 and the forme cylinder 2 have bearings 6.1, which are arranged in a common bearing plate 6.2.
  • a toggle lever system 4.1 is attached, which applies a biasing force F on the bearing 6.1 and thus on the forme cylinder 2.
  • the bearing plate 6.2 is associated with an actuator 7, wherein the movement of the actuator 7 is transmitted via a spindle shaft 9 on the bearing plate 6.2.
  • the toggle lever system 4.1 has two toggle levers 4.2, which are connected at one end to the bearing 6.1 of the forme cylinder 2. At the other end of the knee lever 4.2 is guided in a guide 4.4. As is clear from the FIGS. 4a and 4b results, this end of the bell crank 4.2 is additionally connected to an actuator 4.3. It can either, as in Fig. 4a shown, an actuator 4.3 are used, which acts on both toggle 4.2, or it can, as in Fig. 4b represented, each knee lever 4.2 an actuator 4.3 be assigned. In the presentation of Fig. 2 was the bearing 6.1 of the forme cylinder 2 lifted by the knee levers 4.2 so far that the forme cylinder 2 can be removed from the printing unit 10 and thus a retooling of the printing unit 10 is made possible.
  • Fig. 3a the arrangement of the cylinders 1, 2, 3 of the printing unit 10 is shown.
  • the toggle system 4.1 has been omitted. From the anilox roller 1, which can be seen only slightly in the background, color is transferred to an applied on the forme cylinder 2 cliche 2.1.
  • a printing material web 100 is guided, on which a printing image 101 is applied by the printing plate 2.1.
  • measuring elements 6.3 are arranged, which may for example be designed as strain gauges.
  • the measuring elements 6.3 are connected to an evaluation and control unit 8. With this evaluation and control unit 8, the actuators 4.3 of the toggle lever system 4.1 and optionally the actuator 7 are also connected and can be controlled by the evaluation and control unit 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Claims (9)

  1. Groupe d'impression Flexo (10) avec un rouleau tramé (1), un cylindre porte-forme (2) et un cylindre d'impression (3), pour l'utilisation de cylindres porte-forme (2) de différents diamètres, pour lequel
    les axes de rotation du rouleau tramé (1) et du cylindre porte-forme (2) sont, indépendamment du diamètre du cylindre porte-forme (2), disposés sur un plan horizontal (HE) et les axes de rotation du cylindre porte-forme (2) et du cylindre d'impression (3) disposés sur un plan vertical (VE), caractérisé par le fait que le groupe d'impression Flexo (10) présente au moins un système à genouillère (4.1) pour l'application d'une force de précontrainte (F) sur le cylindre porte-forme (2).
  2. Groupe d'impression Flexo selon la revendication 1,
    caractérisé par le fait
    qu'il est respectivement monté un palier (6.1) sur une extrémité considérée du rouleau tramé (1) et du cylindre porte-forme (2), le palier côté entraînement (6.1) et le palier côté commande (6.1) étant dans chaque cas disposés dans une plaque de support (6.2) commune.
  3. Groupe d'impression Flexo selon la revendication 2,
    caractérisé par le fait
    que le groupe d'impression Flexo (10) présente au moins un servo-entraînement (7) affecté aux deux plaques de support (6.2), en vue de l'adaptation en hauteur (h) des plaques de support (6.2) en fonction du diamètre du cylindre porte-forme (2).
  4. Groupe d'impression Flexo selon l'une des revendications 2 ou 3,
    caractérisé par le fait
    qu'un système à genouillère (4.1) respectif présente deux leviers (4.2), un levier respectif (4.2) étant relié à l'une de ses extrémités avec le palier (6.1) du cylindre porte-forme (2) et à son autre extrémité avec un actionneur (4.3).
  5. Groupe d'impression Flexo selon la revendication 4,
    caractérisé par le fait
    qu'un actionneur respectif (4.3) actionne les deux leviers (4.2) du système à genouillère (4.1) considéré.
  6. Groupe d'impression Flexo selon la revendication 4 ou 5,
    caractérisé par le fait
    que l'actionneur (4.3) est exécuté comme vérin pneumatique, vérin hydraulique, moteur linéaire ou vérin à double course.
  7. Groupe d'impression Flexo selon les revendications 2 à 6,
    caractérisé par le fait
    que des éléments de mesure (6.3), notamment des jauges de contrainte, sont prévus dans les paliers (6.1) du cylindre porte-forme (2) pour la mesure de la contrainte de pression.
  8. Groupe d'impression Flexo selon les revendications 4 et 7,
    caractérisé par le fait
    qu'une unité d'évaluation et de commande (8), servant à l'évaluation des résultats de mesure des éléments de mesure (6.3) et au pilotage des actionneurs (4.3), est affectée au groupe d'impression Flexo (10).
  9. Machine d'impression d'étiquettes sens machine dotée d'au moins un groupe d'impression Flexo (10) selon l'une des revendications précédentes.
EP12769913.0A 2011-11-22 2012-09-19 Groupe d'impression flexographique avec système de levier coudé Not-in-force EP2782757B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011119088A DE102011119088A1 (de) 2011-11-22 2011-11-22 Flexodruckwerk mit Kniehebelsystem
PCT/EP2012/003908 WO2013075766A1 (fr) 2011-11-22 2012-09-19 Groupe d'impression flexographique avec système de levier coudé

Publications (2)

Publication Number Publication Date
EP2782757A1 EP2782757A1 (fr) 2014-10-01
EP2782757B1 true EP2782757B1 (fr) 2018-09-12

Family

ID=47008456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12769913.0A Not-in-force EP2782757B1 (fr) 2011-11-22 2012-09-19 Groupe d'impression flexographique avec système de levier coudé

Country Status (6)

Country Link
US (1) US9272504B2 (fr)
EP (1) EP2782757B1 (fr)
CN (1) CN103857528B (fr)
DE (1) DE102011119088A1 (fr)
DK (1) DK2782757T3 (fr)
WO (1) WO2013075766A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014102285B4 (de) 2014-02-21 2015-10-01 CONPRINTA GmbH & Co. KG Druckwerk für eine Flexodruckmaschine und Verfahren zu dessen Inbetriebnahme
BR112020009031A2 (pt) * 2017-11-09 2020-10-06 Engico S.R.L. sistema de processamento de folha de papel
CN111319347A (zh) * 2020-02-26 2020-06-23 李灵燕 一种布料印染用的辊筒装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422143B1 (en) * 2000-12-26 2002-07-23 Scott D. Lawrence Flexographic preview printer

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DE2221188B1 (de) * 1972-04-29 1973-09-20 Hueck & Co Druckwerk
US4384522A (en) 1977-12-07 1983-05-24 Paper Converting Machine Company Apparatus for producing business forms
DE3220919C2 (de) * 1982-06-03 1984-12-20 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Druckwerk für eine von Schön- auf Schön- und Widerdruck umstellbaren Bogen-Rotations-Offsetdruckmaschine
JPH029636A (ja) * 1988-06-29 1990-01-12 Mitsubishi Heavy Ind Ltd フレキソ輪転機
US5363762A (en) * 1993-03-24 1994-11-15 Belanger Roger R Satellite printing press
ATE168072T1 (de) 1994-04-28 1998-07-15 Nilpeter As Druckvorrichtung mit wenigstens einer modularer druckeinheit
DE19513536A1 (de) 1995-04-10 1996-10-17 Heidelberger Druckmasch Ag Druckmaschine mit mehreren Druckwerken
JPH09136398A (ja) * 1995-10-02 1997-05-27 Howard W Demoore あらゆる輪転オフセット印刷機の第１の印刷ユニット又はそれに続くいずれかの印刷ユニットの湿し装置側から版胴及びブランケット胴上で同時に作動可能な引込み式印刷／コーティングユニット
ATE310639T1 (de) * 1999-10-01 2005-12-15 Koenig & Bauer Ag Kurzfarbwerk
DE10024350A1 (de) * 2000-05-17 2001-11-22 Bhs Druck Veredelungstech Wechsel-Druckwerk für Druckmaschinen zur Umrüstung zwischen Flexodruck- und Tiefdruck-Betrieb
NL1021417C2 (nl) * 2002-09-09 2004-03-10 Stork Prints Bv Drukcilinderondersteuningseenheid.
DE10300502A1 (de) * 2003-01-08 2004-07-29 Rosenberg Gmbh & Co Druckmaschine und Verfahren zum Bedrucken einer Druckbahn
DE20321548U1 (de) 2003-09-19 2007-11-29 Gallus Druckmaschinen Gmbh Rotationsdruckmaschine
NL1026736C2 (nl) * 2004-07-28 2006-01-31 Stork Prints Bv Drukcilinderondersteuningseenheid, positioneerelement, drukcilinder voorzien van positioneerelement, drukmachine voorzien van drukcilinderondersteuningseenheid, en gebruik hiervan.
DE102007028327A1 (de) * 2007-06-15 2008-12-18 Flexicon Ag Druckanlage sowie Verfahren zum Bedrucken von Druckträgern
DE102007045876A1 (de) * 2007-09-25 2009-04-09 Gallus Druckmaschinen Gmbh Druckwerk und Druckmaschine

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Publication number Priority date Publication date Assignee Title
US6422143B1 (en) * 2000-12-26 2002-07-23 Scott D. Lawrence Flexographic preview printer

Also Published As

Publication number Publication date
EP2782757A1 (fr) 2014-10-01
US9272504B2 (en) 2016-03-01
WO2013075766A1 (fr) 2013-05-30
DE102011119088A1 (de) 2013-05-23
US20140144338A1 (en) 2014-05-29
CN103857528B (zh) 2016-02-10
CN103857528A (zh) 2014-06-11
DK2782757T3 (en) 2018-11-05

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