EP1172208B1 - Machine à imprimer et procédé pour traiter une émulsion dans une machine à imprimer - Google Patents

Machine à imprimer et procédé pour traiter une émulsion dans une machine à imprimer Download PDF

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Publication number
EP1172208B1
EP1172208B1 EP01114760A EP01114760A EP1172208B1 EP 1172208 B1 EP1172208 B1 EP 1172208B1 EP 01114760 A EP01114760 A EP 01114760A EP 01114760 A EP01114760 A EP 01114760A EP 1172208 B1 EP1172208 B1 EP 1172208B1
Authority
EP
European Patent Office
Prior art keywords
roll
roller
emulsion
printing
printing machine
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.)
Expired - Lifetime
Application number
EP01114760A
Other languages
German (de)
English (en)
Other versions
EP1172208A1 (fr
Inventor
Eckart Dr. Frankenberger
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1172208A1 publication Critical patent/EP1172208A1/fr
Application granted granted Critical
Publication of EP1172208B1 publication Critical patent/EP1172208B1/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
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/20—Recovering printing ink
    • B41P2231/21—Recovering printing ink by using mixtures of ink and water or repellant

Definitions

  • the invention relates to a method for influencing a printing ink and an existing dampening solution emulsion in a printing press and a Carrying out the process of suitable printing press.
  • WO 91/18744 describes a method for removing gas bubbles in a printing ink used for flexographic or gravure printing, in which Ultrasound energy is directed into the printing ink and in this way foaming is reduced.
  • the ultrasonic energy can be anilox or gravure rollers, Ink trays or chambered doctor blades of the printing ink equipped with ultrasonic actuators are fed.
  • Yet another example of the use of ultrasonic waves in printing machines is a method for controlling the water content described in JP-HEI 3-90359 a printing ink emulsion of an inking unit.
  • an in a water splitting device arranged ultrasonic vibrators Ink emulsion separated on the one hand in printing ink and on the other hand in water. During the separation, the ink emulsion is not on any roller of the Inking unit, but in the water elimination device.
  • a metering device for a liquid medium described in which the medium vibrates by means of a vibration element is transferred.
  • the vibrating element can be applied to the surface of a scoop roller acting ultrasound transmitter.
  • the medium is either lacquer or Fountain solution and in no case one from a printing ink and a fountain solution existing emulsion.
  • the invention is based on the object of specifying a method by which will improve print quality, and at least one for performing the Process suitable press to create.
  • vibrations are introduced into the emulsion on the roller Vibration exciter of the printing machine are generated, which is done with an ultrasound corresponding frequency vibrates, the roller by means of the vibration exciter in Vibrations is offset, which are axial vibrations of the roller.
  • the invention is based on the knowledge that, provided that the Emulsion as a thin emulsion film on a peripheral surface of the roller is an emulsification by means of the vibrating with the ultrasonic frequency Vibration exciter can be transported. This finding is in stark contrast to the method known from JP-Hei 3-90359, in which by means of ultrasound demulsification is to be promoted.
  • the printing press according to the invention with a one of a printing ink and one Emulsion-carrying roller is used to carry out the dampening solution Suitable method and is characterized in that the roller this vibrating frequency and corresponding with an ultrasound vibrating vibration exciter is assigned and that the roller from a Roller axis and a roller sleeve leading the emulsion, which by the Vibration exciter in the longitudinal direction of the roller axis can be excited to vibrate on the Roll axis is mounted.
  • An inking unit comprising rollers which are excited to vibrate in this way requires a total fewer rollers than a conventional inking unit to process the printing ink.
  • a further development of the printing press according to the invention is characterized in that that in addition to the roller, at least one ultrasound source directed onto the roller is arranged.
  • the emulsification is also improved. Banded Emulsion disorders are eliminated by the ultrasonic waves even before the Emulsion disturbances in a manner similar to stenciling from the roller in one other roller or a printing form can be transferred.
  • a printing machine 1 is shown in detail in FIG.
  • the section shows a printing form cylinder 2 with a printing form 3, on which a roller 4 as one Application roller rolls off.
  • Printing form 3 is a planographic printing form (Planographic Printing Form) for offset printing.
  • the rubber-covered, soft-elastic roller 4 and one the latter frictionally driving roller 5 are components of a section shown only Inking unit 6 of the printing press 1.
  • the latter contains 3 for moistening the printing form dampening system consisting of rollers, which is of a known type and therefore not needs to be represented.
  • the chrome-plated, hard roller 5 is an axially iridescent Friction roller.
  • the roller 4 Seen in the direction of rotation of the printing form cylinder 2, the roller 4 is the last roller of the Inking unit 6 in front of a blanket cylinder 7 on the printing form 3.
  • One of the roller 4 assigned and designed as an ultrasound source 8 vibration exciter Printing machine 1 is focused on a peripheral region of the roller 4, which in Direction of rotation of the roller 4 seen a common contact line of the rollers 4 and 5th downstream and a common contact line 10 of the roller 4 and the printing form 3rd is upstream.
  • the contact line 9 is a liquid acceptance line and the Contact line 10 is a liquid discharge line of the roller 4.
  • the ultrasound source 8 is off Piezo elements 11, 12, 13 assembled and extends over the one film-shaped ink fountain solution emulsion 14 covered axial length of the roller 4th
  • the function of the ultrasound source 8 is as follows:
  • the intensity of the Ultrasonic waves 16, 17, 18 variable is the intensity of the Ultrasonic waves 16, 17, 18 variable.
  • Different degrees of emulsification of the emulsion 14 can be set on the roller 4.
  • the latter also have one Long-distance effect within the nip or the contact line 9 between the rollers 4 and 5.
  • the ultrasonic waves 16, 17, 18 in micro-vibrations relative to the Roller 5 offset roller 4 causes regular micro-disturbances of the emulsion 14.
  • FIG. 2 shows that the roller 4 vibrates in an ultrasound is assigned to the corresponding frequency offset further vibration exciter 21, the z. B. can be switched on instead of the ultrasound source 8.
  • the Roller 4 in a multi-part design from a roller axis 22 and one by means of a Sliding bush 23 rotatably and axially displaceably mounted on the roller axis 22 Roller sleeve 24 is made.
  • the vibration exciter 21 designed as a piezo element is supported on one side on the roller axis 22 and can also on another part fixed to the frame.
  • the vibration exciter presses with its other side 21 on a side surface of the roller sleeve 24 and a transition into this side surface Side surface of the sliding bushing 23 Vibration exciter 21 set in an ultrasonic vibration, which the Vibration exciter 21 on its side against the roller sleeve 24 on the Roller sleeve 24 transmits, so that this micro vibrations in axial directions the roller 4 can be forced with a frequency corresponding to ultrasound.
  • This axial micro-vibrations improves the emulsifying behavior of the emulsion 14 not only in the area of the emulsion disorder 16, but throughout Circumferential surface of the roller sleeve 24.
  • the inking unit 6 with a Vibration exciter 21 structurally and functionally corresponding vibration exciter is or are equipped.
  • a dampening roller of the type already mentioned can also be used Dampening unit with a vibration exciter corresponding to the vibration exciter 21 be equipped.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)
  • Printing Methods (AREA)
  • Paper (AREA)

Claims (10)

  1. Procédé pour influer sur une émulsion (14) formée d'une encre d'impression et d'un agent humidifiant, sur un rouleau (4) dans une machine à imprimer (1), où, dans l'émulsion (14) se trouvant sur le rouleau (4), sont induites des vibrations produites à l'aide d'un générateur de vibration (8,21) de la machine à imprimer (1), qui met en vibration à cette fin, à une fréquence correspondant aux ultrasons, et où le rouleau (4), à l'aide du générateur de vibration (21), est mis en un état vibratoire par des vibrations axiales du rouleau (4).
  2. Procédé selon la revendication 1, où les vibrations agissant sur le rouleau (4) présentent une fréquence correspondant à celles des ultrasons.
  3. Machine à imprimer (1) avec un rouleau (4), guidant une émulsion (14) formée d'une encre d'impression et d'un agent humidifiant, et pour la mise en oeuvre du procédé selon la revendication 1 ou 2, caractérisé en ce que, au rouleau (4), est associé un générateur de vibration (21) assurant une mise en vibration et vibrant a une fréquence correspondant à celle des ultrasons, et en ce que le rouleau (4) est formé d'un axe de rouleau (22) et d'une douille de rouleau (24) assurant le guidage de l'émulsion (14), montée sur l'axe de rouleau (22) de façon à pouvoir être mise en vibration, dans la direction longitudinale de l'axe de rouleau (22), par le générateur de vibration (21).
  4. Machine à imprimer selon la revendication 3 caractérisé en ce que le générateur de vibration (21) est disposé dans le rouleau (4).
  5. Machine à imprimer selon la revendication 3 ou 4, caractérisé en ce que le générateur de vibration (21) est du type piézo-électrique.
  6. Machine à imprimer selon l'une des revendications 3 à 5, caractérisé en ce que le rouleau (4) est un rouleau applicateur, roulant sur une forme d'impression (3).
  7. Machine à imprimer selon l'une des revendications 3 à 6, caractérisé en ce qu'au moins une source d'ultrasong (8), dirigée vers le rouleau (4), est disposée séparément du rouleau (4) et à côté de celui-ci.
  8. Machine à imprimer selon la revendication 7, caractérisé en ce que la source d'ultrasons (B) est orientée sur une surface périphérique du rouleau (4).
  9. Machine à imprimer selon la revendication 8, caractérisé en ce quc la source d'ultrasons (8) est orientée sur une zone périphérique (20), située entre deux lignes de contact (8, 9), du rouleau (4).
  10. Machine à imprimer selon l'une des revendications 7 à 9, caractérisé en ce que la source d'ultrasons (8) est de type piézo-électrique.
EP01114760A 2000-07-03 2001-06-25 Machine à imprimer et procédé pour traiter une émulsion dans une machine à imprimer Expired - Lifetime EP1172208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032281 2000-07-03
DE10032281A DE10032281A1 (de) 2000-07-03 2000-07-03 Verfahren zur Beeinflussung einer Emulsion in einer Druckmaschine

Publications (2)

Publication Number Publication Date
EP1172208A1 EP1172208A1 (fr) 2002-01-16
EP1172208B1 true EP1172208B1 (fr) 2003-10-01

Family

ID=7647610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114760A Expired - Lifetime EP1172208B1 (fr) 2000-07-03 2001-06-25 Machine à imprimer et procédé pour traiter une émulsion dans une machine à imprimer

Country Status (5)

Country Link
US (1) US6732644B2 (fr)
EP (1) EP1172208B1 (fr)
JP (1) JP2002052691A (fr)
AT (1) ATE251036T1 (fr)
DE (2) DE10032281A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004058514A (ja) * 2002-07-30 2004-02-26 Fuji Photo Film Co Ltd 平版印刷方法、インキ供給装置および印刷装置
EP1717026A3 (fr) * 2003-11-14 2007-05-02 Fischer & Krecke GmbH & Co. Procédé et dispositif pour déplacer une racle
ES2288663T3 (es) * 2004-01-27 2008-01-16 Rossini S.P.A. Miembro de impresion provisto de un medio de identificacion y metodo para integrar dicho medio en dicho miembro.
DE102005003835A1 (de) * 2005-01-27 2006-08-03 Koenig & Bauer Ag Verfahren und Vorrichtung zum Einfeuchten und Einfärben einer Offset-Druckform
WO2008044489A1 (fr) * 2006-10-06 2008-04-17 Ulvac, Inc. Appareil de filmage sous vide du type avec tendeur
DE102007053596A1 (de) * 2007-11-09 2009-05-14 Manroland Ag Positionierantriebsanordnung einer Druckmaschine
CN109624483B (zh) * 2019-01-30 2020-04-10 昆明理工大学 一种基于超声雾化的润版水施加方法及其系统与应用

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU751659A1 (ru) * 1978-01-20 1980-07-30 Омский политехнический институт Способ печати
DE2948486C2 (de) * 1979-12-01 1981-12-24 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farb- und Feuchtwerk für eine Rotationsoffsetdruckmaschine
US4527479A (en) * 1981-07-31 1985-07-09 Dahlgren Harold P Ink removal, circulating and distributing system
JPS5876278A (ja) * 1981-10-31 1983-05-09 Mitsubishi Heavy Ind Ltd 印刷機のゴ−スト防止装置
AT389675B (de) * 1982-06-02 1990-01-10 Heidelberger Druckmasch Ag Vorrichtung zur farbprofilabhaengigen feuchtmittelregelung
US4665409A (en) 1984-11-29 1987-05-12 Siemens Aktiengesellschaft Write head for ink printer devices
JPS62134264A (ja) 1985-12-06 1987-06-17 Dainippon Printing Co Ltd グラビア版胴へのインキ供給方法
JPS62158047A (ja) 1986-01-06 1987-07-14 Mitsubishi Heavy Ind Ltd インキ供給装置
JPH0288243A (ja) * 1988-09-26 1990-03-28 Tokyo Inken:Kk オフセット印刷の印刷版と水回りローラーの汚れ防止方法
JPH0390359A (ja) 1989-09-01 1991-04-16 Mitsubishi Heavy Ind Ltd インキング装置における乳化インキの含水率制御方法
SE468754B (sv) * 1990-06-05 1993-03-15 Bo Nilsson Saett att vid flexo- och djuptryckmaskiner foerhindra uppkomst av gasbubblor i tryckfaerg
US5226364A (en) * 1991-03-27 1993-07-13 Rockwell International Corporation Ultrasonic ink metering for variable input control in lithographic printing
US5117752A (en) * 1991-04-25 1992-06-02 Rockwell International Corporation Ultrasonic ink seal for use in multicolor printing press
DE19827295A1 (de) * 1998-06-19 1999-12-23 Koenig & Bauer Ag Dosiereinrichtung

Also Published As

Publication number Publication date
DE50100699D1 (de) 2003-11-06
JP2002052691A (ja) 2002-02-19
EP1172208A1 (fr) 2002-01-16
DE10032281A1 (de) 2002-01-17
US20020000171A1 (en) 2002-01-03
US6732644B2 (en) 2004-05-11
ATE251036T1 (de) 2003-10-15

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