EP1745926A2 - Druckmaschine und Druckverfahren - Google Patents

Druckmaschine und Druckverfahren Download PDF

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Publication number
EP1745926A2
EP1745926A2 EP06291134A EP06291134A EP1745926A2 EP 1745926 A2 EP1745926 A2 EP 1745926A2 EP 06291134 A EP06291134 A EP 06291134A EP 06291134 A EP06291134 A EP 06291134A EP 1745926 A2 EP1745926 A2 EP 1745926A2
Authority
EP
European Patent Office
Prior art keywords
traction
printing
machine according
cleaning
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.)
Withdrawn
Application number
EP06291134A
Other languages
English (en)
French (fr)
Other versions
EP1745926A3 (de
Inventor
Antoine Chevalier
Bernard Beranger
Pascal Ollivier
Alain Blanchard
Roger Stanchina
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.)
Goss International Montataire SA
Original Assignee
Goss International Montataire SA
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 Goss International Montataire SA filed Critical Goss International Montataire SA
Publication of EP1745926A2 publication Critical patent/EP1745926A2/de
Publication of EP1745926A3 publication Critical patent/EP1745926A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/007—Cleaning arrangements or devices for supports of workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/10—Selective handling processes
    • B65H2301/12—Selective handling processes of sheets or web
    • B65H2301/121—Selective handling processes of sheets or web for sheet handling processes, i.e. wherein the web is cut into sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/517—Drying material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/251—Smearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • Known printing machines further include a dryer disposed between the last printing unit and the cutting device. This dryer is used to dry the ink which is arranged on the printed tape, to avoid marking the sheets in the cutting device.
  • the present invention aims to overcome these disadvantages, and to provide a printing machine that has a small footprint.
  • the invention relates to a printing machine of the type indicated, characterized in that it further comprises a traction device located downstream of the printing unit further downstream and upstream of the cutting device, and in that the traction device is adapted to apply a determined mechanical tension on the printed strip coming out of the printing unit furthest downstream.
  • Figure 1 a rotary printing machine according to the invention, designated by the general reference 2.
  • the printing machine 2 comprises a unwinder 4, four printing units 6, a traction device 8 and a cutting device 10.
  • the printing machine 2 could comprise any number of printing units 6, theory, from one to n.
  • the unwinder 4 is adapted to unwind a continuous printing tape 12.
  • the traction device 8 is located downstream of the printing unit 6 furthest downstream and upstream of the cutting device 10. This traction device 8 is adapted to apply a determined mechanical tension on the strip 12 coming out of the printing unit 6 furthest downstream.
  • the printing machine 2 can transport the printed strip 12 in free suspension and in ambient air all the way between the printing unit 6 furthest downstream and the printing device. 8.
  • the printing machine 2 is also adapted to transport the printed tape 12 to the air ambient throughout the path between the traction device 8 and the cutting device 10.
  • the printing machine 2 has no dryer and has a small footprint.
  • the printing machine 2 differs from the printing machine 2 shown in Figure 1 in that between the traction device 8 and the cutting device 10 is disposed a dryer 14 to Infrared rays through which the printed strip 12 is conducted.
  • the dryer 14 has reduced dimensions compared with the prior art driers.
  • FIG 3 is shown in perspective a detail of the traction device 8 according to the invention.
  • the printed strip 12 consists of a succession of strip sections 16, each of which is the length of a sheet cut by the cutting device 10.
  • Each section 16 furthermore comprises an image 18 printed on both sides by the rolls of printing printing units 6.
  • each section 16 comprises an unprinted area, which does not contain ink.
  • the traction device 8 comprises two traction rollers 20, 22 which are rotated about their respective axes XX, YY. Each of the pull rollers 20, 22 comes into contact with one of the surfaces of the printed web 12. The pull rollers 20, 22 are driven in opposite directions, and their traction surface moves, at the location of contact with the strip 12, in the same direction S as the printed strip 12. Each of the traction rollers 20, 22 has an outer surface whose circumference is identical to the length of the strip section 16, which reduces the marking. In a variant, the circumference is identical to an integer multiple of the length of the section 16.
  • each pull roller 20, 22 is made of an ink repellent material used to print the images 18.
  • the pull rollers 20, 22 include, for example, a hydrophilic surface.
  • One of the two rolls is coated with an elastomer.
  • the generatrix of contact of the two rollers makes it possible to pinch to pull the paper strip 12.
  • the surfaces of the two traction rollers 20, 22 may for example comprise a coating of a silicone-based compound.
  • the two traction rollers 20, 22 are arranged facing each other, so that the contact line of the traction roller 20 with the belt 12 and the line of contact of the traction roller 22 with the belt 12 are located in vis-à-vis.
  • the traction device 8 makes it possible to print a strip of paper and to receive it in a cutting device 10, such as a flat exit, without drying this strip of paper by evaporation of the solvents of the ink.
  • the image 18 is printed with a secative ink, or waterless inks, or two-component inks.
  • the drying of drying inks is the combination of a first phenomenon called “penetration into the support” and a second phenomenon called “the oxidation polymerization of varnishes consisting of oils and resins".
  • Heat-set inks dry by evaporation of mineral solvents mixed with the resin.
  • the UV inks dry by polymerization of the resin under the effect of ultraviolet radiation.
  • the waterless inks are used with specific printing plates to define non-printing areas without using the conventional lithographic process based on the rejection of the greasy ink by a previously moistened hydrophilic surface.
  • the use of these inks facilitates or avoids the rapid drying and makes it possible to dispense with a dryer, or to design it in a less bulky manner.
  • Figure 4 is shown a detail of a second embodiment of a traction device 8, which differs from Figure 3 by what follows.
  • the two traction rollers 20, 22 are arranged apart from each other, so that they define a substantially S-shaped path of the printed strip 12.
  • the S-shaped arrangement makes it possible to increase the winding arc of the band on the driven rollers and thus to promote the efficiency of the traction module by capstan effect.
  • Another device must then be associated with this traction module. This device must make it possible to create a low but sufficient downstream voltage to induce an upstream voltage sufficiently high to pull the band at the output of the last printing unit.
  • the traction module 8 further comprises two cleaning devices 30, 32. Thus, the quality of the image 18 on the printed tape 12 is further improved.
  • the cleaning devices 30, 32 comprise cleaning bars 34, 36 in permanent contact with the traction surface of the rollers 20, 22.
  • the cleaning bars 34, 36 may comprise a rotating brush placed in contact with each other. the surface to be cleaned or a strip of tissue brought into contact by a mechanical member. In both cases, the cleaning is facilitated by the action of a solvent.
  • Figure 6 is shown a fourth embodiment of the traction device 8, in side view. This embodiment differs from the third embodiment by the following.
  • Both pull rollers 20, 22 have ink-repelling surfaces, such as a coating of a silicone-based compound.
  • the cleaning device 30 comprises a cleaning roller 38 comprising a surface of an ink-attracting material which is in contact with the surface of the traction roller 20.
  • the cleaning roller 38 is, for example, coated with a porous ceramic intended for cleaning. to be impregnated with ink and thus has surface properties favorable to the transfer of the ink. This technique is used in particular to make inkwell rolls.
  • the cleaning device 30 further comprises a squeegee 42 which is in permanent contact with the surface of the cleaning roller 38 and which conveys the ink picked up by the roll 38 to a recovery tank 46.
  • the cleaning device 32 further comprises a cleaning roll 40 comprising a surface of an ink attracting material, such as a coating of a porous ceramic to be impregnated with ink and thus having favorable surface properties to the ink. ink transfer.
  • the surface of the roll 40 is in contact with the surface of the traction roller 22.
  • the cleaning device 32 further comprises a doctor blade 44 which is in permanent contact with the surface of the cleaning roller 40 and which conveys the ink drawn by the rollers 40 to a collection tank 48.
  • FIG. 7 shows a fifth embodiment of the traction device 8, which comprises a variant of the cleaning devices 30, 32.
  • Each cleaning device 30, 32 comprises two cleaning rollers 38, 40 drawing the ink, and for each of the cleaning rollers 38, 40, a washing device 50, 52.
  • the washing device 50, 52 is disposed at a distance a from the surface of the associated pulling roll 20, 22 which is larger than the diameter of the corresponding cleaning roll 38, 40.
  • Each cleaning roll 38, 40 is movable between a position cleaning device in which it is in contact with the associated traction roller 20, 22 and a washing position in which it is in contact with the washing device 50, 52 associated.
  • the two cleaning rollers 38, 40 of each cleaning device 30, 32 are controlled in such a way as to come into alternate contact with the associated traction roller 20, 22.
  • the device described in FIG. 7 has an advantage over the device described in FIG. . 6. Indeed, assuming that the cleaning can, by contamination with the washing solvent, temporarily modify the properties of the surfaces of the rollers 20 and 22 (ink rejection), this operation is carried out, in the case of the device of FIG. 7, on rollers 38 and 40 which are not in contact with the traction rollers 20 and 22.
  • FIGS. 8A to 8C show a sixth embodiment of a traction module 8 according to the invention.
  • This traction device comprises two traction rollers 20, 22 which are arranged on one side of the printed strip 12 one behind the other.
  • the traction device 8 further comprises two clamping rollers 54, 56 which are arranged on the other side of the printing band 12 and which have a smaller diameter than the diameter of the traction rollers 20, 22.
  • Each of the clamping rollers 54, 56 is adapted to apply to the printed tape 12.
  • Each clamping roll 54, 56 is, in combination with the associated pulling roller 20, 22 adapted to clamp the printed web 12.
  • the traction rollers 20, 22 are adapted to alternatively come into contact with the printed band 12.
  • the pulling device further comprises, for each pulling roller 20, 22 a washing device 50, 52.
  • Each washing device 50, 52 is located at a distance a from the surface of the printed strip 12 which is greater than the diameter of the associated traction roller 20, 22. When the traction roller 20, 22 is out of contact with the printed web 12, these washing devices 52, 52 wash the surface of the traction roller 20, 22.
  • the device described in FIGS. 8A, 8B, 8C has an advantage over the device described in FIG. 6. Indeed, assuming that the cleaning can, by contamination with the washing solvent, temporarily modify the properties of the surfaces of the rollers 20 and 22 (ink rejection), this operation is carried out with the cleaning devices 50 and 52 while the traction rollers 20 and 22 are not in contact with the band.
  • the traction device 8 further comprises eight toothed rollers 72 connected in pairs by an axis 73.
  • the traction device 8 is provided with four belts or chains 74, each of which is guided around two toothed rollers 72 arranged on one side only.
  • the two belts 74 on one side of the printed web 12 are connected by pull bars 76, which are arranged at a mutual distance on the belt 74 which corresponds to the length of the strip section 16.
  • traction bars 76 are adapted to be applied on both sides of the strip 12, vis-à-vis and clamp the strip between them. Thus they are adapted to exert traction on the band 12.
  • the bars 76 are driven in synchronism with the strip 12 so that they only apply to the unprinted area of the strip 12.
  • the surface coming into contact with the strip 12 of the strip 76 is preferably elastomeric.
  • FIG. 12 represents a portion of a variant of a printing machine, comprising an accompanying device 80 disposed between the printing unit 6 furthest downstream and the cutting device 10.
  • the accompanying device 80 is arranged upstream of the traction device 8.
  • This accompanying device 80 comprises two support rollers 82 arranged on one side and the other of the band 12.
  • FIG. 13 an enlarged cross-section of the support rollers 82 is seen.
  • the support rollers 82 are hollow and comprise a cylindrical wall 83 with an annular section.
  • the wall 83 forms an outer support surface 84.
  • the accompanying device 80 comprises means for creating an air cushion between the support surface 84 and the printed strip 12.
  • These air cushion creation means comprise on the one hand, openings 86 passing through the wall 83 of the roller 82.
  • These openings 86 are arranged, in cross-section, in a secant manner with respect to the own axis AA, BB of the roller 82.
  • the openings 86 have a component directed in the direction of displacement S of the band 12, and this in the direction radially outwards with respect to the own axis AA, BB of the roller 82 considered.
  • the means for creating an airbag comprise two sealing walls 88 disposed inside each support roller 82, these walls 88 applying on the one hand in an airtight manner against the inner surface 89 of the wall 83, and secondly to the central axis of the support roller 82.
  • a pressurized air inlet 90 is connected to the chamber 92 defined by the walls 83 and 88.
  • the support rollers 82 are rotated so that their circumference at the location near the printed band moves in the S direction of the printed web path 12.
  • the opening 86 which is at a given moment in communication with the chamber 92 defined by the walls 83 and 88, allows the air in the chamber 92 to escape, and create an air cushion between the outer surface 84 and the printed tape 12, which guides the printed tape 12.

Landscapes

  • Advancing Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP06291134A 2005-07-18 2006-07-11 Druckmaschine und Druckverfahren Withdrawn EP1745926A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0507619A FR2888527B1 (fr) 2005-07-18 2005-07-18 Machine d'impression et procede correspondant

Publications (2)

Publication Number Publication Date
EP1745926A2 true EP1745926A2 (de) 2007-01-24
EP1745926A3 EP1745926A3 (de) 2008-09-10

Family

ID=36146916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291134A Withdrawn EP1745926A3 (de) 2005-07-18 2006-07-11 Druckmaschine und Druckverfahren

Country Status (5)

Country Link
US (1) US20070012205A1 (de)
EP (1) EP1745926A3 (de)
JP (1) JP2007022813A (de)
CN (1) CN1915664B (de)
FR (1) FR2888527B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159056A1 (de) * 2008-08-27 2010-03-03 RPC Bebo Print Patent GmbH Vorrichtung und Verfahren zur Bedruckung und Trocknung von Kunststoff-Folien
CN103223766A (zh) * 2013-05-17 2013-07-31 海宁市金跃印务有限公司 一种包装袋印刷机的展平装置

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US20100064917A1 (en) * 2006-11-24 2010-03-18 Goss International Montataire Sa Printing machine and corresponding method
FR2916676B1 (fr) 2007-06-01 2011-04-15 Goss Int Montataire Sa Machine d'impression et procede correspondant.
DE102009006268B4 (de) * 2008-02-26 2017-12-14 Heidelberger Druckmaschinen Ag Verfahren zum Reinigen einer Mantelfläche eines Gummituchzylinders einer Nassoffsetdruckmaschine
FR2961327B1 (fr) 2010-06-11 2012-07-27 Goss Int Montataire Sa Procede de traitement de produits plats et dispositif correspondant
DE102012103716A1 (de) * 2012-04-27 2013-10-31 Manroland Web Systems Gmbh Rollendruckmaschine und Verfahren zum Betreiben derselben
CN103407282B (zh) * 2013-07-19 2014-11-26 西安航天华阳印刷包装设备有限公司 一种宽幅壁纸印刷压花生产设备
CN103552371B (zh) * 2013-10-29 2015-12-16 天津市旭辉恒远塑料包装有限公司 编织袋钢板印刷机
CN104369527B (zh) * 2014-11-19 2017-02-01 昆山市周庄镇黎明印刷厂 印刷设备
CN106427191A (zh) * 2016-08-31 2017-02-22 竹林伟业科技发展（天津）股份有限公司 一种印刷机连续折页系统
CN109573540A (zh) * 2018-11-05 2019-04-05 张磊 一种挤塑板加工装置用可调节定位输送台
CN109551883A (zh) * 2018-11-05 2019-04-02 张磊 一种挤塑板加工装置用静电除尘机构
DE102019101340A1 (de) * 2019-01-18 2020-07-23 Bundesdruckerei Gmbh Transportvorrichtung mit integrierter reinigungseinrichtung
JP6947457B1 (ja) * 2021-02-19 2021-10-13 株式会社写真化学 印刷装置及び取除ユニット
CN114474974A (zh) * 2021-12-24 2022-05-13 时磊 一种可回收边缘油墨的涂布加工装置

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US2112586A (en) * 1937-04-09 1938-03-29 Cottrell C B & Sons Co Web perfecting rotary press
US4930383A (en) * 1987-06-30 1990-06-05 Man Roland Druckmaschinen Ag Combination cutting and path switching apparatus for moving webs, particularly printed paper substrates, and method
US4846060A (en) * 1988-07-25 1989-07-11 Iotec Manufacturing, Inc. Printing web tensioning system
US5255606A (en) * 1990-04-02 1993-10-26 Kabushikikaisha Tokyo Kikai Seisakusho Drag roller device for printing apparatus
EP0461898A1 (de) * 1990-06-14 1991-12-18 Baldwin Technology Corporation Waschvorrichtung mit rotierender Bürste
DE4429047A1 (de) * 1994-08-16 1996-02-22 Heidelberger Druckmasch Ag Vorrichtung zum Waschen der Mantelfläche von Zylindern einer Rotationsdruckmaschine
JPH10181924A (ja) * 1996-12-27 1998-07-07 Kazuo Inaba ロール並びにストリップの表面異物除去方法と除去装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159056A1 (de) * 2008-08-27 2010-03-03 RPC Bebo Print Patent GmbH Vorrichtung und Verfahren zur Bedruckung und Trocknung von Kunststoff-Folien
WO2010022857A1 (de) * 2008-08-27 2010-03-04 Rpc Bebo Print Patent Gmbh Vorrichtung und verfahren zur bedruckung und trocknung von kunststoff-folien
US9669616B2 (en) 2008-08-27 2017-06-06 Rpc Bebo Print Patent Gmbh Device and method for printing and drying plastic films
US10124575B2 (en) 2008-08-27 2018-11-13 Rpc Bebo Print Patent Gmbh Device and method for printing and drying plastic films
CN103223766A (zh) * 2013-05-17 2013-07-31 海宁市金跃印务有限公司 一种包装袋印刷机的展平装置

Also Published As

Publication number Publication date
JP2007022813A (ja) 2007-02-01
EP1745926A3 (de) 2008-09-10
CN1915664B (zh) 2011-12-07
FR2888527A1 (fr) 2007-01-19
FR2888527B1 (fr) 2009-01-16
US20070012205A1 (en) 2007-01-18
CN1915664A (zh) 2007-02-21

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