EP1531044A1 - Dispositif d'encrage pour cylindre de rotogravure - Google Patents

Dispositif d'encrage pour cylindre de rotogravure Download PDF

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Publication number
EP1531044A1
EP1531044A1 EP03025991A EP03025991A EP1531044A1 EP 1531044 A1 EP1531044 A1 EP 1531044A1 EP 03025991 A EP03025991 A EP 03025991A EP 03025991 A EP03025991 A EP 03025991A EP 1531044 A1 EP1531044 A1 EP 1531044A1
Authority
EP
European Patent Office
Prior art keywords
printing
cylinder
ink
ink supply
printing cylinder
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Withdrawn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
EP03025991A
Other languages
German (de)
English (en)
Inventor
Wilfried Dr. Kolbe
Klaus Schirrich
Bodo Steinmeier
Ralf Mulch
Andreas Kückelmann
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co 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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to EP03025991A priority Critical patent/EP1531044A1/fr
Priority to US10/985,653 priority patent/US20050120893A1/en
Priority to JP2004329423A priority patent/JP2005145072A/ja
Publication of EP1531044A1 publication Critical patent/EP1531044A1/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Withdrawn legal-status Critical Current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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices

Definitions

  • the invention relates to a gravure printing machine with a device for applying of printing ink on a printing cylinder, with a Farbzubow shortcomings.
  • color is usually applied to the surface of a rotating inkjet printer Printing cylinder, applied.
  • the impression cylinder in a paint tray plunge.
  • the inked printing cylinder then passes through a Abrakelstation, in the smooth polished surface of the printing cylinder before the actual Printing is clean scraped off, so that the ink only in the printing, recessed areas of the printing cylinder surface remains. Subsequently the remaining color is applied to the one of the impression roller against the Pressure cylinder pressed substrate printed. During the subsequent immersion the printing cylinder surface in the ink tray is colored again.
  • the printing cylinder can also be supplied with paint via a roller immersed in the ink tank.
  • the known methods and apparatus for coloring a gravure cylinder is common that the impression cylinder surface after the actual Printing process until re-coloration passes through an area in which they in contact with the ambient air.
  • For fast rotating printing cylinders builds up on the printing cylinder surface a layer of entrained Air on.
  • this layer of air impedes wetting the cylinder surface with color, and on the other hand mixes the air partly with the color.
  • This is when immersing in a paint tray Pressure cylinder the entrained air layer directly into the color in the ink tray introduced, whereas in a coloring of the printing cylinder over a roller takes the entrained air along with the paint in the gap between the roller and the pressure cylinder device.
  • the air in the color can for Foaming lead the color, and on the inked printing cylinder surface Air can be stored in the recessed areas of the surface. This leads to an impairment of the printing result.
  • the object of the invention is a gravure printing machine with a device for applying printing ink to a printing cylinder, in which the above problems are reduced.
  • Air entrained by the printing cylinder surface is thus passed through the scraping device stripped off the impression cylinder before the impression cylinder surface is colored by the ink supply device.
  • This is a renewed, extended Contact of the impression cylinder surface with air between the stripper and the ink supply device, through which it to a renewed Construction of a entrained air layer could come prevented.
  • To this Way finds no direct air entry in the applied to the printing cylinder Printing ink instead.
  • the printing cylinder is inked only with printing ink and not with foamed by mixing air. Also at increasing speeds and surface speeds of the printing cylinder, in which an air layer is carried to a greater extent, the Printing ink undisturbed applied to the printing cylinder surface.
  • the applied amount of paint can be achieved by actively feeding the paint regulated or controlled to the printing cylinder. Alternatively, the color in a paint tray to be held by the surface of the printing cylinder is going through.
  • the stripping device of the ink supply device is immediate prefixed. This is the easiest way to contact the printing cylinder surface with air between the passing of the scraper and the Passing the color feeder to avoid.
  • Do the stripping a structural unit with the ink supply device form, so that they hired together to the impression cylinder can be.
  • the stripping device is a squeegee device with a doctor blade.
  • the doctor blade may be similar to an already made one Abrakelstation known doctor blade be executed and to the impression cylinder be adjustable.
  • the ink supply device is designed to the ink along the back of the doctor blade on the cylinder applied. This can be carried immediately after stripping Air layer, the ink to be applied.
  • the ink supply device has a paint application nozzle on.
  • This can be supplied with paint via a paint feed and For example, with a downwardly directed nozzle opening one on the impression cylinder create an impacting color curtain.
  • the paint application nozzle be formed to spray the ink splash free to the back of the Doctor blade of the stripper to lead. The color curtain then runs along the back of the doctor blade.
  • the stripping device and the ink supply device preferably follow within a rotating coil of the cylinder of less than 90 °, in particular less as 60 °, on the impression roller on which the actual printing took place Has. This angle of rotation is possible even lower.
  • the stripping device and the ink supply device as close as possible to the impression roller arranged so that the area in which the impression cylinder between the impression and the stripping device is in contact with air, is as small as possible. This is not only advantageous to a structure of entrained air layer It also shortens the time in which the surface of the Printing cylinder runs dry.
  • the ink supply device with a Ink filled and open on a side facing the printing cylinder Container on, and the pressure cylinder is in contact with the container located in the container Ink.
  • the color feeder on a have the top open ink tray into which the impression cylinder dips.
  • the stripping device is below the color level in the container adjustable to the pressure cylinder.
  • the stripping device can, for example a squeegee device with a doctor blade.
  • the doctor blade with its cutting edge can be adjusted to the pressure cylinder, that the cutting edge is below the color level in the container.
  • the gravure printing machine shown in Figure 1 comprises a printing cylinder 10 and a impression roller 12, which are rotatably mounted in a machine frame.
  • This and associated drive and adjusting devices are not shown here since they are not essential to the understanding of the invention.
  • the gravure cylinder 10 is in contact with a stripping device 14. At the contact point is from a color feeder 16 ink 18 applied the surface of the printing cylinder.
  • the printing cylinder 10 rotates in Arrow direction, thereby leading the applied ink on its surface 18th With. Excess ink 18 can drain into a drip pan 20, the is arranged under the impression cylinder 10.
  • the in known manner is formed by a doctor blade 24, which is attached to a holder 26 is fixed, the printing cylinder is doctored off.
  • the printing cylinder 10 employed cutting edge of the doctor blade 24 is the on the printing cylinder applied ink from the smooth, non-printing Surface regions of the printing cylinder 10 is removed, so that the printing ink only remains in the recessed areas on a substrate web 28 generate the print image.
  • the printing material web 28 is fed through the impression roller 12 pressed against the printing cylinder 10.
  • an angular range ⁇ which is about 60 ° in the example shown. Due to the high speed of the gravure cylinder 10, its surface speed For example, be 10 m / s. While the surface of the printing cylinder 10, the angular range ⁇ between the impression roller 12 and the Stripping device 14 passes through, builds on its surface an entrained Air layer on. This is the stripping device 14, which by a Doctor device with a doctor blade 32 attached to a holder 30 is formed stripped from the surface of the printing cylinder 10.
  • This squeegee device can be similar to how it is known for a doctoring station is held on levers, with the squeegee device so against the Can swing the circumference of the printing cylinder 10 that the surface of the Cutting edge of the doctor blade 32 is touched. In this way, the doctor blade 32 reliably entrained from the surface of the printing cylinder 10 Strip off the air layer. The doctor blade 32 is in the direction of rotation of the printing cylinder 10 obliquely employed against the surface.
  • the ink 18 is applied to the printing cylinder 10.
  • the ink supply device 16 is attached to the holder 30 of the scraper 14. She points a color distribution chamber 34, which via an inlet 36 continuously Printing ink is supplied.
  • the color distribution chamber 34 is closed on the output side an inking nozzle 38, which together with the color distribution chamber 34 extends in the longitudinal direction of the doctor blade 32.
  • the printing ink 18 is sprayed from the paint application nozzle 38 to the back of the doctor blade 32 headed and is used by this as a color curtain on the surface of the Pressure cylinder 10 out. This allows air to enter the ink 18 even at very high surface speeds of the printing cylinder 10 reliably prevented.
  • the ink 18 is therefore a homogeneous Forming ink layer on the printing cylinder 10. This is favored by that the paint application as early as possible after printing the substrate web 28 takes place, so that the time until the doctoring is as long as possible.
  • Of the Angle ⁇ is therefore preferably to be chosen as small as possible.
  • the doctor blade 32 relative to the vertical by one Angle ⁇ be inclined to the ink supply device 16 out so that the color curtain 40 is located under the back of the doctor blade 32.
  • the Holder 30 is tilted to the right in the drawing, the blade of the doctor blade can 32 are brought closer to the impression roller 12.
  • FIG. 2 shows another embodiment of the gravure printing machine shown in FIG.
  • the paint does not apply to the gravure cylinder 10 a paint application nozzle, but the surface of the gravure cylinder 10 passes a trained as a color trough 42 ink supply device, with the ink 18 is filled. That of the doctor device with a on the holder 30th mounted doctor blade 32 formed scraper 14 is inside the ink tray 42 is arranged.
  • the stripping device 14 is on a holder 44 fixed, which secured with a quick release connection to the ink tray 42 is.
  • the holder 44 may, for example, in the form of a respective plate at the ends of Wiper 14 the space above the stripping 14 laterally (in front of and behind the drawing in the drawing).
  • the doctor blade 32 can be so against the circumference of the printing cylinder 10, that its surface touched by the cutting edge of the doctor blade 32 becomes.
  • the blade of the doctor blade is located at this point below the color level 46 in the ink tray 42.
  • the stripping device 14 is included arranged on the side of the printing cylinder 10, at the surface thereof immersed in the ink 18. In this way, the doctor blade 32 can be reliable a entrained from the surface of the printing cylinder 10 air layer strip.
  • the case introduced into the ink 18 air is above the stripping device 14 and migrates to the surface of the ink 18th As a result, mixing of the introduced air with the ink 18 be prevented in the remaining area of the ink tray 42.
  • a gravure cylinder 10a is shown in phantom, its scope is significantly lower than that of the gravure cylinder 10. This corresponds to a much smaller print format.
  • the ink tray 42 is height adjustable, as by a double arrow is indicated. The position of the wiper 14 relative to the ink tray 42 can be adjusted by suitable design of the holder 44 be. Optionally, the holder 44 is released from the ink tray 42 and be re-attached elsewhere, or the stripping device 14 may be moved with the ink tray 42.
  • the stripping device 14 has a separating device 48 shown in dashed lines. This may be, for example, a grid or network that the further propagation from above the doctor blade 32 into the ink 18 introduced air prevented.
  • the separator 48 may be as shown from the top of the squeegee device to above the color level, or alternatively it may be from the squeegee device to an edge the ink tray 42 extend. In the separator 48, it may optionally also act around a barrier, which is the passage of ink prevented.
  • the illustrated embodiments are merely examples of an inventive Understand printing press. So the stripping device 14 also be executed differently than in the form of a doctor device, if one provided on the impression cylinder 10 element is provided, the reliable the entrained air layer strikes off. There are also other facilities between the stripping device 14 and the ink supply device or between the ink supply device and the Abrakelstation 22 conceivable, for example another color feeder.
  • the ink 18 need not be ink in the strict sense act. Rather, the invention may also be different in other liquids Viscosity applied, applied to a printing cylinder should be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP03025991A 2003-11-14 2003-11-14 Dispositif d'encrage pour cylindre de rotogravure Withdrawn EP1531044A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03025991A EP1531044A1 (fr) 2003-11-14 2003-11-14 Dispositif d'encrage pour cylindre de rotogravure
US10/985,653 US20050120893A1 (en) 2003-11-14 2004-11-10 Inking device for gravure printing cylinder
JP2004329423A JP2005145072A (ja) 2003-11-14 2004-11-12 グラビア印刷シリンダのインク装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03025991A EP1531044A1 (fr) 2003-11-14 2003-11-14 Dispositif d'encrage pour cylindre de rotogravure

Publications (1)

Publication Number Publication Date
EP1531044A1 true EP1531044A1 (fr) 2005-05-18

Family

ID=34429349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025991A Withdrawn EP1531044A1 (fr) 2003-11-14 2003-11-14 Dispositif d'encrage pour cylindre de rotogravure

Country Status (3)

Country Link
US (1) US20050120893A1 (fr)
EP (1) EP1531044A1 (fr)
JP (1) JP2005145072A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101758654A (zh) * 2009-12-29 2010-06-30 汕头大学 凹版印刷机的刮墨装置及刮墨方法
CN101973162A (zh) * 2010-08-19 2011-02-16 宜昌宏裕塑业有限责任公司 一种机组式凹版印刷机喷墨供墨装置
WO2012161779A1 (fr) * 2011-02-28 2012-11-29 Corning Incorporated Dispositif et procédé d'impression utilisant une encre électronique
DE102013215264A1 (de) * 2013-08-02 2015-02-05 Windmöller & Hölscher Kg Farbwerk

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5989399B2 (ja) * 2012-05-17 2016-09-07 住友重機械モダン株式会社 塗工装置
CN104191812B (zh) * 2014-08-29 2017-01-18 江苏科思机电工程有限公司 一种墨件装置
KR101702753B1 (ko) * 2015-06-01 2017-02-03 조호원 액체 자동공급 가능한 포장용 은박지 제조장치
CN105235383A (zh) * 2015-10-28 2016-01-13 玉溪环球彩印纸盒有限公司 凹印机自清洁印版供墨方式
CN105599427B (zh) * 2015-10-29 2017-10-31 湖州佳宁印刷有限公司 一种设有除气味机构的凹版印刷机
CN105415861B (zh) * 2015-10-29 2017-09-19 湖州佳宁印刷有限公司 一种带有除气味机构的凹版印刷机
US9579878B1 (en) * 2015-10-30 2017-02-28 Industrial Technology Research Institute Gravure printing system and method of using the same
CN108642705A (zh) * 2018-05-15 2018-10-12 苏州圣菲尔新材料科技有限公司 一种表面具有蛋白质薄膜的无纺布制备方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239925A (en) * 1992-06-02 1993-08-31 Ronald L. Harper Ink distribution apparatus
GB2265112A (en) * 1992-03-16 1993-09-22 Roland Man Druckmasch Inking device for forme roller.
FR2689451A1 (fr) * 1992-04-03 1993-10-08 Komori Chambon Dispositif d'encrage pour un appareil d'impression héliographique.
DE4401299A1 (de) * 1994-01-18 1995-07-20 Roland Man Druckmasch Vorrichtung zum Einfärben einer Rasterwalze
US5636566A (en) * 1994-08-04 1997-06-10 Windmoeller & Hoelscher Gravure printing unit for a rotary press

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158333A (en) * 1978-05-01 1979-06-19 Anpa Research Institute Inking baffle for rotary newspaper presses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265112A (en) * 1992-03-16 1993-09-22 Roland Man Druckmasch Inking device for forme roller.
FR2689451A1 (fr) * 1992-04-03 1993-10-08 Komori Chambon Dispositif d'encrage pour un appareil d'impression héliographique.
US5239925A (en) * 1992-06-02 1993-08-31 Ronald L. Harper Ink distribution apparatus
DE4401299A1 (de) * 1994-01-18 1995-07-20 Roland Man Druckmasch Vorrichtung zum Einfärben einer Rasterwalze
US5636566A (en) * 1994-08-04 1997-06-10 Windmoeller & Hoelscher Gravure printing unit for a rotary press

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101758654A (zh) * 2009-12-29 2010-06-30 汕头大学 凹版印刷机的刮墨装置及刮墨方法
CN101758654B (zh) * 2009-12-29 2014-12-03 汕头大学 凹版印刷机的刮墨装置及刮墨方法
CN101973162A (zh) * 2010-08-19 2011-02-16 宜昌宏裕塑业有限责任公司 一种机组式凹版印刷机喷墨供墨装置
CN101973162B (zh) * 2010-08-19 2012-03-07 宜昌宏裕塑业有限责任公司 一种机组式凹版印刷机喷墨供墨装置
WO2012161779A1 (fr) * 2011-02-28 2012-11-29 Corning Incorporated Dispositif et procédé d'impression utilisant une encre électronique
DE102013215264A1 (de) * 2013-08-02 2015-02-05 Windmöller & Hölscher Kg Farbwerk
WO2015014995A3 (fr) * 2013-08-02 2015-06-11 Windmöller & Hölscher Kg Système encreur

Also Published As

Publication number Publication date
US20050120893A1 (en) 2005-06-09
JP2005145072A (ja) 2005-06-09

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