EP1099548A2 - Dispositif d'impression d'essais pour imprimer et/ou pour revêtir des materiaux en bande - Google Patents

Dispositif d'impression d'essais pour imprimer et/ou pour revêtir des materiaux en bande Download PDF

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Publication number
EP1099548A2
EP1099548A2 EP00111472A EP00111472A EP1099548A2 EP 1099548 A2 EP1099548 A2 EP 1099548A2 EP 00111472 A EP00111472 A EP 00111472A EP 00111472 A EP00111472 A EP 00111472A EP 1099548 A2 EP1099548 A2 EP 1099548A2
Authority
EP
European Patent Office
Prior art keywords
roller
printing
gravure
flexographic
printing device
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Withdrawn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
EP00111472A
Other languages
German (de)
English (en)
Other versions
EP1099548A3 (fr
Inventor
Clemens Ditzel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1099548A2 publication Critical patent/EP1099548A2/fr
Publication of EP1099548A3 publication Critical patent/EP1099548A3/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Withdrawn legal-status Critical Current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
    • B41F5/00—Rotary letterpress machines
    • B41F5/20—Rotary letterpress machines specially adapted for proof printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/04—Rotary intaglio printing presses specially adapted for proof printing

Definitions

  • the invention relates to a test printing device for printing and / or Coating of sheet-like materials in the gravure printing process, in Flexographic printing process with scoop cylinder and plate roller as ink transfer roller or indirect gravure printing and doctor blades for Dosage of the printing ink according to the preamble of claim 1.
  • TD device in one The smallest amount of ink is placed in front of the squeegee and the one to be printed Paper from a unwinding point during the printing process due to the driving force of the pulled gravure roller and impression roller in contact and is printed (Dainippon screen); TD press machines, where one too printing sheet on an impression roller with not quite full extent is clamped on one side (Goebel Trabant) or clamped on both sides (Timmins / GB and Heaford / GB); TD pressure device, in which a small TD cylinder with squeegee over the one clamped on an elongated plate The substrate sheet is pulled between the impression cylinder and the impression roller (IGT Printability Tester for Gravure Printing Model G1); Laboratory gravure printing machines with paint trays, unwinds and reels for the Printing of materials from roll to roll, i.e. not in
  • a gravure printing machine in which a small, narrow one Printing cylinder dips into an ink pan to which a doctor blade is attached there is an impression cylinder with a hard surface; to the The actual printing process becomes a flat plastic plate with one printing sheet attached to both ends and the plastic plate is pressed by hand or mechanically through the nip and through the Carriage of the rollers pulled through (test building).
  • the disadvantages of the prior art are that the Printing devices that work with a substrate as a sheet, not those in the printing speeds used in practice can be achieved, and the Printing parameters such as contact pressure, squeegee pressure, squeegee position, printing speed are not adjustable or reproducible. Nor can prints be made at high print speeds in which a further color is registered to a previously printed ink can be applied.
  • the invention has for its object a trial printing device to create the type mentioned above, which allows an arc that its dimensions are suitable for sample purposes and which are different can be long to almost the length of the circumference of the used Back pressure roller, with a width of up to approx. 200 to 300 mm one flexible material (substrate) with practical printing speed to print under practical production conditions and in particular to achieve high printing speeds with pressure devices at clearly adjustable and reproducible printing parameters, such as contact pressure, Squeegee printing, squeegee position, so that test prints with sufficient accuracy of color strength and printed image can be achieved
  • the solution to the problem is that at high Print speed a counter pressure roller variable in its position or Pair of rollers with conveyor belt for printing on the printing sheet or with a printed sheet made endless as a conveyor belt during maximum one revolution with the ink-guiding printing roller (gravure roller) or Ink roller and cliché roller in flexo printing or smooth roller in indirect gravure comes into contact with the sheet-like substrate and makes a one-time printing whereby the gravure roller at Gravure printing process or the flexographic printing roller together with the inking roller are designed in their scope and over a common mechanical positive drive or with two electronically coupled Drives are connected that after single or integer multiple Rotation of the gravure or. Flexographic printing roller this is the back pressure roller can touch again in the same place.
  • the surface of the Counter pressure roller have a coating.
  • the back pressure roller a rubber cover, which as a rubber blanket only over part of the Extent is applied.
  • the coating is compressible for the gravure printing process and incompressible in the flexographic process.
  • the doctor blade forms between itself and the gravure roller in the gravure printing process and indirect gravure printing or the inking roller at Flexographic printing a gutter in which a small amount of color can be entered for inking the gravure roller or inking roller.
  • the gravure roller or the inking roller partially dips into an ink pan and the doctor blade scrapes the excess paint off the surface the gravure roller / inking roller and conducts even at high printing speeds the color back into the ink pan below.
  • a chamber doctor blade system can also be used be attached to the inking roller with the ink circulation pump.
  • the trial printing device is for both the gravure printing process and set up the flexographic or indirect gravure process by the Counter-pressure roller is changed in its position so that the flexographic printing roller or the ink transfer roller in the indirect gravure printing process between Bucket roller and counter-pressure roller can be arranged.
  • the one for the Flexographic printing or indirect gravure printing is necessary ink transfer roller is rotatably mounted on a rotatably mounted arm and is between Ink scoop roller and counter pressure roller swung in.
  • the paint tray is interchangeable with a washing tub for cleaning the paint-carrying parts.
  • the paint tub or wash tub can be swiveled or lowered.
  • the Back pressure roller is integral to increase its surface area Relationship to the gravure roller or ink transfer roller for flexographic printing or indirect gravure from a conveyor belt at least partially wrapped, which compresses differently depending on the printing process is designed and which at the point of contact to the gravure roller at Gravure printing process or at the point of contact with the cliché roller at Flexographic or indirect gravure printing serves as a press base.
  • the Conveyor belt is only in the area where the print is to be attached Material sheet designed thicker. Also conveyor belt is designed so that the sheet of flexible material to be printed on the conveyor belt is temporarily fixed either by using adhesive Surfaces, by magnetic or by electrostatic forces of the Conveyor belt or by vacuum between the conveyor belt and the Sheet of material to be printed.
  • the fixation of the to be printed Bow is done with the help of a double-sided adhesive tape, which is used for Counter pressure roller or to the conveyor belt surface only as strong Adhesive power that it is after performing the printing of this pulled off together with the printed sheet without leaving any residue can be.
  • the drive of the rotogravure roller in the rotogravure process or the swiveled in Cliché roller swung in during the flexographic printing process Ink transfer roller in indirect gravure printing and Counter pressure roller are in their positions in the direction of rotation and in their Speeds can be adjusted so that a multi-color print that is in register is possible.
  • the conveyor belt has one on its outer surface line exactly the same or an integer multiple length based on the circumference of the Gravure roller in the gravure printing process or the ink transfer roller in flexographic or indirect gravure printing. The conveyor belt undergoes a form-fit, register-based entrainment by the counter-pressure roller.
  • the squeegee is for stripping the ink on the inking roller or Gravure roller rotatably supported on a mandrel, the contact pressure of the Doctor knife by adjustable spring force, with a weight or by means of pneumatic pressure on the gravure cylinder or on the inking roller with flexographic or indirect gravure printing applied can be.
  • the mandrel is for the rotatable mounting of the squeegee on one attached a pivot point squeegee arm.
  • the doctor arm is also in movable in the axial direction to perform a doctor stroke movement.
  • the Doctor blade holder is axially movable on the mandrel to perform a Doctor stroke.
  • the squeegee which is rotatably mounted on a mandrel, becomes the side Cleaning deducted.
  • the counter roll has a fastening part located below its surface line, which is the sheet to be printed for at least one Revolution through the pressure zone.
  • the sheet to be printed is made on a pliable for gravure printing compressible, for flexographic and indirect gravure printing uncompressible pad attached at least on one face, the flexible base for printing temporarily on the counter roller is held and guided by this through the pressure zone once.
  • the contact forces and positions between gravure roller and counter-pressure roller or conveyor belt are reproducibly adjustable. As well can the contact forces and share positions between the inking roller and Ink transfer roller (flexographic or indirect gravure) reproducible be adjustable.
  • the invention provides a trial printing device, in particular with printing devices, high printing speeds allowed and clear adjustable and reproducible pressure parameters, such as contact pressure, Squeegee printing, squeegee position, so that proof prints with sufficient good Accuracy of color strength and printed image can be achieved.
  • adjustable and reproducible pressure parameters such as contact pressure, Squeegee printing, squeegee position
  • prints can now be printed at high printing speeds can be produced in which another color is registered a previously printed color can be applied.
  • Printing roller for gravure printing the gravure roller, for flexographic printing the Cliché roller, with indirect gravure the ink transfer roller
  • the counter-pressure roller is forced to have the same surface speed acted upon. This can be done mechanically through gears and / or timing belts done or electronically with the help of two connected individual drives.
  • the scope of the counter pressure roller is so chosen to be exactly the same size as the gravure roll, or Flexographic printing roller or an integral multiple.
  • Another embodiment of the invention allows the one to be printed Sheet on one around the counter-pressure roller and at least one more To temporarily fix the deflection roller running conveyor belt.
  • the conveyor belt is chosen compressible for the gravure printing process, for the flexographic and indirect gravure printing process incompressible.
  • the jacket length of the conveyor belt is an integral multiple of the scope of the Print roller to print each sheet to be printed accurately.
  • a sheet to be printed is of sufficient length and its Stability allows, this sheet can even by gluing the end ends into an endless band around the counter-pressure roller and be made around a deflection roller designed as a tensioning roller.
  • the counter-pressure roller in the gravure printing process rubberized roller. Through one-sided mounting of counter pressure roller and pulley can complete the entire after printing Tape can be easily removed from the rollers.
  • the squeegee arm is expediently mounted at a pivot point and the squeegee mandrel can be slidably fastened on this arm, so that for the different printing roller circumferences all possible angles of application of the squeegee knife to the gravure roller / inking roller can be set (positive and negative squeegee angles).
  • Figure 3 shows schematically the side view of the sample printing device, wherein the sheet to be printed 3.2 on a counter roller with one for the Gravure printing related to compressible edition 3.1, temporarily fixed will (3.3).
  • the compressible pad 3.1 can on the entire surface of the Back pressure roller can be applied.
  • invention can only be as long as the impression on the impression roller printing sheet is long.
  • this has the advantage that the Back pressure roller for printing to the sheet before it reaches the sheet Rotogravure roller can be turned on, the printing then takes place only in the Zone of the impression cover raised on the counter-pressure roller.
  • Figure 5 shows a sketch of the roller arrangement during operation with the pivoted in Ink transfer roller for the flexographic or indirect Gravure printing.
  • Figure 6 shows a perspective sketch of the sample printing device with Swinged-in counter-pressure roller 1.6, with one immersed in the ink tank Gravure roller 1.3, with doctor blade 1.5 turned on and in the waiting position standing wash tub 6.1 and swung arm 1.7 with a flexographic printing roller 1.8.
  • FIG. 7 shows a possible design form of the doctor blade in a detailed sketch.
  • a squeegee mandrel 7.1 is attached to a squeegee arm 1.4 by frictional connection.
  • the Doctor blade holder 1.5 is rotatably attached to the doctor blade 7.1.
  • Im hollow trained doctor blade sits a small pneumatic cylinder 7.5, which with the Driver 7.2 is connected.
  • the driver 7.2 is by the Pneumatic cylinder moved back and forth over a distance C.
  • the nose 7.3 attached to the squeegee holder, this is used to practice the squeegee stroke and moved here.
  • the bolt 7.9 is fastened in the squeegee holder and in the Bores 7.10 axially displaceable (for the doctor stroke).
  • the driver 7.2 has an opening 7.11. To pull off the squeegee holder 1.5 with the Doctor knife 7.12 after the printing process for easy Cleaning the squeegee from the printing ink will keep the squeegee from so long Hand from the contact zone of the knife 7.12 with the pressure roller 1.3 the mandrel rotated until the nose 7.3 is above this opening 7.11, then the doctor holder can be pulled from the mandrel.
  • the object of the invention is particularly for test printing device for printing and coating web-shaped materials using the gravure printing process or suitable in flexographic printing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP00111472A 1999-05-28 2000-05-29 Dispositif d'impression d'essais pour imprimer et/ou pour revêtir des materiaux en bande Withdrawn EP1099548A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924614 1999-05-28
DE1999124614 DE19924614A1 (de) 1999-05-28 1999-05-28 Probedruckeinrichtung

Publications (2)

Publication Number Publication Date
EP1099548A2 true EP1099548A2 (fr) 2001-05-16
EP1099548A3 EP1099548A3 (fr) 2002-11-27

Family

ID=7909559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111472A Withdrawn EP1099548A3 (fr) 1999-05-28 2000-05-29 Dispositif d'impression d'essais pour imprimer et/ou pour revêtir des materiaux en bande

Country Status (2)

Country Link
EP (1) EP1099548A3 (fr)
DE (1) DE19924614A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381011A (zh) * 2010-08-30 2012-03-21 上海运青制版有限公司 一种改进型数字化打样机
CN103687727A (zh) * 2011-02-25 2014-03-26 博布斯特比勒费尔德有限公司 颜色校样设备和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080017055A1 (en) * 2006-07-20 2008-01-24 Howard John B Method and apparatus for exchanging substrate processing technologies

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH293136A (de) * 1950-01-24 1953-09-15 Timsons Ltd Rotations-Probedruckmaschine.
EP0428767A1 (fr) * 1989-11-18 1991-05-29 Saueressig Gmbh & Co. Machine d'impression rotative flexographique
DE4139343C2 (de) * 1991-11-29 1995-04-13 Schepers Hans Georg Probedruckmaschine
NL9400397A (nl) * 1994-03-14 1995-10-02 Anderson & Vreeland Bv Inrichting voor het maken van proefdrukken.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381011A (zh) * 2010-08-30 2012-03-21 上海运青制版有限公司 一种改进型数字化打样机
CN103687727A (zh) * 2011-02-25 2014-03-26 博布斯特比勒费尔德有限公司 颜色校样设备和方法
CN103687727B (zh) * 2011-02-25 2015-06-03 博布斯特比勒费尔德有限公司 颜色校样设备和方法

Also Published As

Publication number Publication date
EP1099548A3 (fr) 2002-11-27
DE19924614A1 (de) 2000-11-30

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