EP2085224A2 - Imprimante et procédé de coordination des réglages des mécanismes de coloration et de mouillage - Google Patents

Imprimante et procédé de coordination des réglages des mécanismes de coloration et de mouillage Download PDF

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Publication number
EP2085224A2
EP2085224A2 EP09000537A EP09000537A EP2085224A2 EP 2085224 A2 EP2085224 A2 EP 2085224A2 EP 09000537 A EP09000537 A EP 09000537A EP 09000537 A EP09000537 A EP 09000537A EP 2085224 A2 EP2085224 A2 EP 2085224A2
Authority
EP
European Patent Office
Prior art keywords
printing machine
profile
sensor device
water content
inking
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Withdrawn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
EP09000537A
Other languages
German (de)
English (en)
Other versions
EP2085224A3 (fr
Inventor
Shahram Dipl.-Ing. Hauck
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 Sheetfed GmbH
Original Assignee
Manroland 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 filed Critical Manroland AG
Publication of EP2085224A2 publication Critical patent/EP2085224A2/fr
Publication of EP2085224A3 publication Critical patent/EP2085224A3/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Withdrawn legal-status Critical Current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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0054—Devices for controlling dampening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0063—Devices for measuring the thickness of liquid films on rollers or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Definitions

  • the invention is directed to a printing machine, and to a method for adjusting the color and dampening settings of a printing press to ensure high-quality printing results in the offset printing process.
  • Out DE 36 11 645 A1 is a method for controlling the color and dampening agent portions of an emulsion layer on the printing plate of an offset printing machine known.
  • the dampening solution content is detected on the printing plate by means of an infrared sensor device.
  • Out DE 32 05 941 A1 is a device for non-contact, metrological real-time detection of liquid layers in nips of printing machines known.
  • an ultrasound sensor is provided in the vicinity of a nip, it being possible to determine the ratio of the amount of ink to the amount of dampening solution on the basis of the sound signals detected via this ultrasound sensor.
  • Out DD 24 10 40 A5 is a method for controlling the layer thickness of a layer of a liquid mixture of oil material and water in a printing machine known.
  • a cylinder of the inking unit is irradiated with infrared rays.
  • the invention has for its object to show solutions by which it is possible to realize a high quality inking in a largely automated manner within the shortest possible setting phases.
  • the profile profile of the water content along the associated color or Studentstragerwalze is detected by a plurality of arranged in the longitudinal direction of the color or Studentstragerwalze sensor elements.
  • the movement of the sensor element along the ink or transfer roller can be done by the sensor element is connected to a transverse guide device, which allows in conjunction with a corresponding actuator displacement of the sensor member along the inking or Studentstragerwalze.
  • the sensor element is designed as a microwave sensor.
  • the detection of the moisture content can be done by evaluation of transmission or reflection interaction effects. Furthermore, it is also possible to detect the moisture content of the color layer passing under the sensor device on the basis of the power reference of the microwave sensor, in particular the phase position of the current relative to the applied voltage of the microwave sensor.
  • the inventive concept By means of the concept according to the invention, it is also possible to reliably process printing inks, which offer only an extremely narrow tolerance window with regard to water absorption capacity (in particular colors with a vegetable oil base).
  • the inventive concept also makes it possible to increase dot gain variations counteract and bring about optimal machine adjustment by a self-contained control loop and hereby reduce the amount of work to be done so far by an experienced printer or machine operator.
  • the inventive concept makes it possible in a particularly advantageous manner to detect the wiping water content of the color layers over the entire format width.
  • the inventive detection of the moisture value profile along a color or fürtragerwalze can be used in a particularly advantageous manner in conjunction with other print job and image information for automatic control of the dampening unit.
  • FIG. 1 The inking unit 1 comprises an ink fountain 4 and a chamber doctor roller 5 associated therewith.
  • the ink tapped off from the ink fountain 4 via this chamber doctor roller 5 is replaced by a printing unit 1 tapped first transfer roller 6 and in turn transferred to a Mattertragerwalze 7.
  • This transfer roller 7 is connected to a roller train formed by further transfer rollers 8, 9, 10, 11.
  • About this further compactor is an increasingly uniform color transfer to the Studentstragerwalze 11. From this Automattragerwalze 11 is again tapped by two further Mattertragerwalzen 12, 13 ink.
  • the intended for moistening the plate cylinder 2 dampening unit 3 comprises a dampening roller 21 and a plurality, cooperating with this moistening rollers 22, 23, 24, 25th
  • the printing press shown here is characterized in that it comprises a plurality of sensor elements S1, S2, S3, S4, S5, by means of which indicative measuring signals can be obtained with regard to the moisture content or the wiping water profile.
  • These sensor elements S1 ... S5 can be implemented as individual sensors be, which are displaceable by corresponding adjusting drives and guide means in the longitudinal direction of the associated rollers 7, 11, 17, 19. It is also possible to associate with the aforementioned rollers 7, 11, 17, 19 a plurality of individual sensors arranged sequentially in the longitudinal direction of these rollers, so that the moisture content profile can be approximated by a plurality of measuring points.
  • the printing machine according to the invention is designed so that an optimization of the setting of the dampening unit 3 is carried out on the basis of the moisture content profiles of the inking rollers guided through the inking rollers by the sensor elements S1... S5.
  • the dampening unit 3 is for this purpose preferably designed so that this allows a matched to the respective format range dampening solution.
  • the vote of this dampening solution is carried out according to the invention taking into account the sensor signals detected by the sensor elements S1 ... S5 and taking into account further print job-specific and printing plate-specific data.
  • FIG. 2 Illustrates in the region of the graph a the course of the moisture content profile of a guided over the transfer roller 17 ink layer of the inking unit 1 FIG. 1 ,
  • This profile profile is greatly simplified here for the printed image 30 indicated.
  • the moisture content profile moves within a tolerance range I required for optimal printing results.
  • This profile profile can be detected by a plurality of microwave sensors S1-1, S1-2... Arranged in the longitudinal direction of the transfer roller 17. It is also possible to determine this profile profile with only one microwave sensor which is moved along the transfer roller 17 during machine operation.
  • Graph c illustrates the ink density distribution in the longitudinal direction of the transfer roller 17.
  • Graph d illustrates the setting of the dampening unit 3.
  • the dampening unit 3 By setting the dampening unit 3 here, it is possible to tune the water inlet effected in the area of the dampening unit 3 to the plate cylinder 2 in such a way that no excessively high wiping water entry takes place at the transfer roller 17.
  • This wiping water entry is, as already mentioned, illustrated by the graph a and guided over a closed loop in the indicated narrow tolerance range I.
  • the inventive concept makes it possible to detect the wiping water content of the ink layer of selected rollers of the inking unit in the roll longitudinal direction.
  • the information obtained in this way results in a considerable simplification of the inking system setting even with difficult print templates.
  • the inventive concept according to the invention particularly high printing qualities and effective process monitoring can be achieved.
  • the inventive concept also makes it possible to achieve standardization specifications safely and with great repeatability.
  • the amount of waste paper produced as part of the machine startup and optimization of the machine setting is significantly reduced.
  • the inventive concept results in an increase in performance of the printing system.
  • the measured values which are indicative of the moisture profile along the inking rollers in accordance with the invention can be processed in a particularly advantageous manner in conjunction with further image and print job information for optimizing the machine setting.
  • the determination of the moisture content of the guided over the corresponding inking roller ink layer according to the invention is carried out using microwave sensors.
  • the measurement signal collection can be carried out by evaluating transmission and / or reflection effects.
  • As an alternative to a sequential arrangement of a plurality of individual sensors along the inking roller to be monitored it is possible to determine the moisture profile to carry out by one or only a few traversing moved individual sensors.
  • the monitoring according to the invention of the moisture value profile along the inking rollers can also be combined with other monitoring approaches. In particular, it becomes possible to collect further measured values indicative of the moisture distribution in the substrates and to process these in combination with the signals obtained according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP09000537A 2008-02-01 2009-01-16 Imprimante et procédé de coordination des réglages des mécanismes de coloration et de mouillage Withdrawn EP2085224A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008007272A DE102008007272A1 (de) 2008-02-01 2008-02-01 Druckmaschine, sowie Verfahren zur Abstimmung der Farb- und Feuchtwerkseinstellungen

Publications (2)

Publication Number Publication Date
EP2085224A2 true EP2085224A2 (fr) 2009-08-05
EP2085224A3 EP2085224A3 (fr) 2009-10-21

Family

ID=40566275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000537A Withdrawn EP2085224A3 (fr) 2008-02-01 2009-01-16 Imprimante et procédé de coordination des réglages des mécanismes de coloration et de mouillage

Country Status (3)

Country Link
EP (1) EP2085224A3 (fr)
JP (1) JP2009184353A (fr)
DE (1) DE102008007272A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106079855A (zh) * 2016-08-03 2016-11-09 钟晴晴 一种胶印机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134264A1 (de) 1981-08-29 1983-03-10 Peter Dr.-Ing. 6718 Grünstadt Decker Vorrichtung zur erfassung der feuchtwassermenge in offsetmaschinen
US4480542A (en) 1983-12-23 1984-11-06 Heidelberger Druckmaschinen Device for ink profile-dependent regulation of dampening medium
DE3636507A1 (de) 1986-10-27 1988-04-28 Grapho Metronic Gmbh & Co Verfahren zur einstellung des befeuchtungsgrades des plattenzylinders einer offsetdruckmaschine
EP0388697A2 (fr) 1989-03-22 1990-09-26 Heidelberger Druckmaschinen Aktiengesellschaft Procédé et dispositif pour la fixation d'un champ de mesure pour la détermination de l'épaisseur de la couche de mouillage d'une plaque d'impression offset
US20060027115A1 (en) 2004-08-06 2006-02-09 Man Roland Druckmaschinen Ag Method for operating a printing press

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205941C2 (de) 1982-02-19 1986-10-30 Forschungsgesellschaft Druckmaschinen E.V., 6000 Frankfurt Vorrichtung zur berührungslosen meßtechnischen Erfassung des Flüssigkeitstransports durch Walzenspalte in Farb- oder Feuchtwerken von Druckmaschinen
DE3220701C3 (de) * 1982-06-02 1995-09-07 Heidelberger Druckmasch Ag Vorrichtung zur Feuchtmittelführung bei einem Offsetdruckwerk
JPH0798396B2 (ja) 1984-12-24 1995-10-25 三菱重工業株式会社 オフセット印刷機におけるインキと湿し水との量的バランスの自動制御方法
DE3611645A1 (de) 1986-04-07 1987-10-08 Grapho Metronic Gmbh & Co Verfahren und vorrichtung zur regelung der farb- und feuchtmittelanteile einer emulsionsschicht auf der druckplatte einer offset-druckmaschine
DE3828182A1 (de) 1988-08-19 1990-02-22 Giebeler Gmbh & Co Kg Robert Verfahren zur einstellung der feuchte bei einer rollen-nassoffset-druckmaschine
JPH11240141A (ja) * 1998-02-26 1999-09-07 Toppan Printing Co Ltd 網点着肉制御装置
JPH11245381A (ja) * 1998-02-27 1999-09-14 Toppan Printing Co Ltd 印刷紙面の横方向印刷濃度制御装置
JP2000158630A (ja) * 1998-11-26 2000-06-13 Toppan Printing Co Ltd 印刷色安定化装置
SE0001808D0 (sv) * 2000-05-17 2000-05-17 Baldwin Jimek Ab A method for controlling fountain solution in a printing press
DE102006009382A1 (de) * 2006-03-01 2007-09-06 Koenig & Bauer Aktiengesellschaft Verfahren und Vorrichtung zur Regelung des Farb- und Feuchtmittelanteiles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134264A1 (de) 1981-08-29 1983-03-10 Peter Dr.-Ing. 6718 Grünstadt Decker Vorrichtung zur erfassung der feuchtwassermenge in offsetmaschinen
US4480542A (en) 1983-12-23 1984-11-06 Heidelberger Druckmaschinen Device for ink profile-dependent regulation of dampening medium
DE3636507A1 (de) 1986-10-27 1988-04-28 Grapho Metronic Gmbh & Co Verfahren zur einstellung des befeuchtungsgrades des plattenzylinders einer offsetdruckmaschine
EP0388697A2 (fr) 1989-03-22 1990-09-26 Heidelberger Druckmaschinen Aktiengesellschaft Procédé et dispositif pour la fixation d'un champ de mesure pour la détermination de l'épaisseur de la couche de mouillage d'une plaque d'impression offset
US20060027115A1 (en) 2004-08-06 2006-02-09 Man Roland Druckmaschinen Ag Method for operating a printing press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106079855A (zh) * 2016-08-03 2016-11-09 钟晴晴 一种胶印机
CN106079855B (zh) * 2016-08-03 2018-06-22 钟晴晴 一种胶印机

Also Published As

Publication number Publication date
DE102008007272A1 (de) 2009-08-06
EP2085224A3 (fr) 2009-10-21
JP2009184353A (ja) 2009-08-20

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