EP0765749B1 - Dispositif de raclage pour l'encrier à circulation d'encre d'une presse à imprimer rotative - Google Patents

Dispositif de raclage pour l'encrier à circulation d'encre d'une presse à imprimer rotative Download PDF

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Publication number
EP0765749B1
EP0765749B1 EP96113148A EP96113148A EP0765749B1 EP 0765749 B1 EP0765749 B1 EP 0765749B1 EP 96113148 A EP96113148 A EP 96113148A EP 96113148 A EP96113148 A EP 96113148A EP 0765749 B1 EP0765749 B1 EP 0765749B1
Authority
EP
European Patent Office
Prior art keywords
doctor
tube
inking
bores
arrangement according
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
EP96113148A
Other languages
German (de)
English (en)
Other versions
EP0765749A1 (fr
Inventor
Fritz Achelpohl
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0765749A1 publication Critical patent/EP0765749A1/fr
Application granted granted Critical
Publication of EP0765749B1 publication Critical patent/EP0765749B1/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
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • 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
    • B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles

Definitions

  • the invention relates to a doctor blade device for a rinse inking unit a rotary printing press consisting of a through a profile strip formed with a groove-shaped recess Doctor knife carrier, on which approximately roof-shaped and parallel to each other two doctor blades that can be adjusted to an inking or anilox roller attached together with the inking roller, the channel-shaped recess of the doctor blade carrier and at the end an ink chamber on this provided sealant limit from lines for supplying and discharging paint into the Ink chamber and out of it, with a spray device Spray nozzles for spraying a cleaning liquid into the Ink chamber and adjustment devices for pressing the doctor blade carrier to the inking roller.
  • an ink chamber doctor blade of this type is known in the profile strip forming the rear wall of the ink chamber a sewer system is integrated, which is part of the Spray nozzles leading additional holes is provided.
  • This Known doctor blade device is expensive to manufacture because it means a significant effort using the profile bar inner duct and distributor system connected to the individual spray nozzles for the cleaning liquid.
  • the object of the invention is therefore a doctor blade device to create the type specified, which deals with a lower Can make effort.
  • this object is achieved in that the End walls of the ink chamber carrying sealant are provided with holes in which a pipe is held, that over its length at a distance from each other with the spray nozzles forming holes is provided, and that one end of the tube with a connection for supplying washing liquid is provided.
  • the doctor device according to the invention can be very easily with a spray device for cleaning after completion a print job or when changing the printing color provided that the tube having the spray nozzles in the holes the side walls of the ink chamber is held.
  • This Holes can also be retrofitted, so that it is easily possible to already be in operation or existing doctor devices with the carrying the spray nozzles Retrofit pipe.
  • this must be the connection for the supply of washing liquid opposite end of the tube to be closed.
  • This closure can be effected in a simple manner by that a bore in a side part closes the end of the tube Blind hole is.
  • the webs Limit the front edges with the inking roller throttle gap and which are aligned holes in which a pipe is held that is spaced apart along its length is provided with holes forming the spray nozzles, and that one end of the tube with a connection for supplying washing liquid is provided.
  • a squeegee device in which weirs forming sidewalls Divide secondary chambers is in the patent application 195 16 223.4 to which reference is made.
  • the weirs Forming webs are suitable for mounting in a favorable manner a tube provided with spray nozzles.
  • doctor device is intended to solve the problem that an insert part can be inserted into the recess in which a Pipe is supported, spaced apart along its length is provided with holes forming the spray nozzles, and that a End of the tube with a connection for supplying washing liquid is provided.
  • This insert can be easily and quickly into the channel-shaped recess of the doctor blade holder insert without the profile forming the doctor blade carrier would have to be provided with a special channel system.
  • Insert with two radial side compartments Webs is provided, the front edges with the inking roller Limit throttle gaps and those with aligned holes are provided in which the pipe provided with the spray nozzles is supported.
  • an insert part can be inserted into the recess is that with one to the axis of the inking roller parallel bore is provided, which with spray nozzles Cross holes is provided. According to this configuration needs only the insert in the channel-shaped recess of the doctor blade holder to be used to achieve the desired spray nozzle arrangement to have. This configuration also allows doctoring devices in operation or present Retrofit spray nozzle arrangements.
  • This insert part with two radial is also expedient Provide webs, the front edges with the paint roller Limit throttle gap.
  • the insert with a bead parallel to the axis of the inking roller is provided, which has a narrow gap with the inking roller limited.
  • This bead forms an auxiliary squeegee, as it were Prevention of ghosting prevented.
  • the holes forming the spray nozzles are expedient arranged in two parallel rows so that they are essentially directed to the doctor blade and in particular Flush the corners of the ink chamber when cleaning fluid is fed under pressure.
  • the insert parts expediently consist of plastic.
  • the pressure cylinder block which is also designed as a slide is in the usual and therefore not described in detail Way one side of an anilox roller 2 stored.
  • the upper ends of the parallel link 5, 6 are pivotable about the hinge axes 7, 8 with the a coupling-forming carrier 9 connected.
  • the carrier 9 is in one piece formed with the doctor blade 10.
  • the doctor blade carrier 10 is by screws provided with handwheels 11 with the doctor blade carrier 16 connected.
  • the piston rod 12 of a pneumatic cylinder 13 articulated, which in turn via a support piece 14 articulated by the joint 15 on the inking unit 1 is.
  • the hinge axes 4 of the parallel link 6 are with an eccentric adjustment 4 'provided, due to which the pivot axis the parallel link 6 can be raised and lowered.
  • the parallel link 5, 6 each of the two anilox roller 2 storing Inking box can double to increase stability be executed.
  • the doctor blade carrier 16 consists of a profile strip, the 1 can be seen.
  • the bar of the doctor blade holder 16 is provided with a groove 20 forming the interior of the paint.
  • This gutter opens out in the lower middle area Fig. 3 can be seen, a bore supplying the printing ink 21.
  • the channel is through the Bores 22, 23 which remove printing ink are cut.
  • the Vent holes 24, 25 open into the upper end regions of the channel.
  • the end faces of the gutter edges are chamfered in opposite directions. On these end faces are by clamps 28, 29 the doctor blade 30, 31 in the usual and therefore not closer attached described.
  • Seals 33, 34 are on the sides of the doctor blade carrier 11 arranged that the ink interior 20 opposite the anilox roller 2nd seal. To hold these seals are with the side End faces of the bar of the doctor blade carrier cover 35, 36 screwed, the end walls of the ink chamber 20th form.
  • The is symmetrical to the central plane 40 of the doctor blade carrier 16 Cover 35 with a through hole and cover 36 with a flat blind hole. There is a in the holes Pipe 41 held, the bore of the cover 35 substantially enforced.
  • the tube 41 is in two rows on both sides of the
  • the center plane 40 of the doctor blade carrier 16 is provided with bores 42, form the spray nozzles.
  • the bores 42 of each row include a centering angle of approximately 90 °, so that the through these spray nozzles formed approximately on the back of the Doctor blades 30, 31 are directed.
  • the tube 41 has a suitable distance from the bottom of the trough-shaped Recess so that gusset spaces are avoided, from which paint residues are difficult to remove.
  • the ink chamber can in the manner shown with lateral Web 44, 45 may be provided which the ink chamber in a middle Divide the main chamber and side secondary chambers 46, 47.
  • the Crosspieces have rounded edges corresponding to the radius of the anilox roller 2 Front edges 48 on, with the anilox roller 2 throttle gaps Limit 49.
  • the webs 44, 45 are provided with openings, so that the paint from the main chamber into the secondary chambers 46, 47th can reach.
  • the webs 44, 45 are symmetrical to the central plane 40 of the Doctor knife carrier 16 provided with aligned holes, the penetrates the tube 41.
  • the aligned holes of the two webs 44, 45 can also be used alone to hold the spray nozzle tube 41 can be used.
  • the embodiment of the doctor device according to FIGS. 4 to 6 differs from that according to FIGS. 1 to 3 essentially only in that in the recess forming the ink chamber 20 an insert part 50 made of plastic in the one shown in the figures Way inserted and fastened that in the central plane 40 of the doctor blade carrier 16 with a the top of the Insert-cutting hole is provided, in which the Spray nozzle tube 41 inserted or in which this is held.
  • the Insert part 50 is in the end regions of the interior of the ink chamber again provided with radial webs 52, 53, the side secondary chambers compartment. These webs 52, 53 are also aligned Provide holes that pass through the spray nozzle tube 41.
  • the spray nozzle tube 41 is in the same way as the spray nozzle tube 1 to 3 on both sides of the central plane 40 with Bores 42 forming spray nozzles. These holes are located in all the embodiments also in the secondary chambers separated by the webs.
  • FIGS. 7 to 9 differs 4 to 6 in that the insert 60 from Plastic not with an inserted spray nozzle tube, but is provided with a bore 61 which, like the spray nozzle tubes, runs parallel to the axis of the anilox roller 2.
  • the hole 61 is again on both sides of the central plane 40 with spray nozzles forming transverse bores 62 which have a centering angle of about 90 ° and on the back of the doctor blade are directed.
  • the insert 60 is in the central plane 40 with a longitudinal Bead 64 provided a gap with the anilox roller 2 forms and in a known manner the prevention of ghosting serves.
  • the insert part 60 is also compartmentalized with side secondary chambers Provide webs 65, 66.
  • the bore 61 is on its right side, which can be seen in FIG. 8 closed by the cover part 36. On the left the bore 61 is aligned with a bore 67 of the cover part 35.
  • the bore 67 or the end of the spray nozzle tube 41 that the Cover part 35 penetrates in a hole, is with a connection provided for supplying a washing liquid.
  • the washing liquid flows through the Bores 22, 23 in the secondary chambers.
  • Additional holes can be made in the individual spray nozzles also special spray heads are used with facilities are provided, which prevent the penetration of color.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Centrifugal Separators (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Claims (10)

  1. Dispositif de raclage pour un dispositif d'encrage à rinçage d'une presse à imprimer rotative, constitué d'un support de lames de racle formé par une baguette profilée avec un évidement en forme de rainure, sur lequel sont fixées deux lames de racle applicables à peu près en forme de toit et parallèlement l'une à l'autre à un rouleau d'encrage ou anilox, qui délimitent ensemble avec le rouleau d'encrage de l'évidement en forme de rainure du support de lames de racle et des moyens d'étanchéité prévus au côté des extrémités à celles-ci une chambre d'encre, de conduits pour l'amenée et l'évacuation de l'encre dans la chambre d'encre et hors de celle-ci, d'une installation de pulvérisation avec des buses de pulvérisation pour pulvériser un liquide de nettoyage dans la chambre d'encre et d'installations d'application pour pousser le support de lames de racle au rouleau d'encrage, caractérisé en ce que les parois frontales, côté extrémité, portant les moyens d'étanchéité de la chambre d'encre sont pourvues de perçages dans lesquels est retenu un tuyau qui, sur sa longueur, présente des perçages espacés les une des autres, formant les buses de pulvérisation, et en ce qu'une extrémité du tuyau est pourvue d'un raccord pour l'amenée du liquide de lavage.
  2. Dispositif de raclage selon la revendication 1, caractérisé en ce qu'un perçage est un perçage à trou borgne fermant le tuyau au côté de l'extrémité.
  3. Dispositif de raclage selon la revendication 1 ou 2, caractérisé en ce que sont disposées dans la chambre d'encre deux baguettes radiales, séparant des chambres secondaires latérales, dont les arêtes frontales délimitent avec le rouleau d'encrage des fentes d'étranglement et qui sont pourvues de perçages alignés dans lesquels est retenu le tuyau pourvu de perçages transversaux formant des buses de pulvérisation.
  4. Dispositif de raclage selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que le tuyau est retenu en plus par une pièce d'insertion placée dans l'évidement qui est pourvue, sur sa longueur, de perçages espacés les uns des autres, formant les buses de pulvérisation, et en ce qu'une extrémité du tuyau est pourvue d'un raccord pour l'amenée du liquide de lavage.
  5. Dispositif de raclage selon la revendication 4, caractérisé en ce que la pièce d'insertion présente deux baguettes radiales, séparant des chambres secondaires latérales, dont les arêtes frontales délimitent avec le rouleau d'encrage des fentes d'étranglement et qui sont pourvues de perçages alignés dans lesquels est retenu un tuyau qui est pourvu sur sa longueur de perçages espacés les uns des autres, formant les buses de pulvérisation, et en ce qu'une extrémité du tuyau est pourvue d'un raccord pour l'amenée du liquide de lavage.
  6. Dispositif de raclage selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que le tuyau est constitué au moins par zones par un perçage parallèle à l'axe du rouleau d'encrage, s'étendant dans la pièce d'insertion, et que la pièce d'insertion est pourvue de perçages transversaux formant les buses de pulvérisation.
  7. Dispositif de raclage selon la revendication 6, caractérisé en ce que la pièce d'insertion est pourvue de deux baguettes radiales dont les arêtes frontales délimitent avec le rouleau d'encrage des fentes d'étranglement.
  8. Dispositif de raclage selon la revendication 6 ou 7, caractérisé en ce que la pièce d'insertion est pourvue d'un bourrelet parallèle à l'axe du rouleau d'encrage qui délimite avec le rouleau d'encrage une fente étroite.
  9. Dispositif de raclage selon l'une des revendications 1 à 8, caractérisé en ce que les perçages sont disposés dans deux rangées parallèles l'une à l'autre et sont orientés essentiellement vers les lames de racle.
  10. Dispositif de raclage selon l'une des revendications 1 à 9, caractérisé en ce que la pièce d'insertion est réalisée en matière synthétique.
EP96113148A 1995-09-28 1996-08-16 Dispositif de raclage pour l'encrier à circulation d'encre d'une presse à imprimer rotative Expired - Lifetime EP0765749B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19536268 1995-09-28
DE19536268A DE19536268C1 (de) 1995-09-28 1995-09-28 Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine

Publications (2)

Publication Number Publication Date
EP0765749A1 EP0765749A1 (fr) 1997-04-02
EP0765749B1 true EP0765749B1 (fr) 2000-04-26

Family

ID=7773542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113148A Expired - Lifetime EP0765749B1 (fr) 1995-09-28 1996-08-16 Dispositif de raclage pour l'encrier à circulation d'encre d'une presse à imprimer rotative

Country Status (12)

Country Link
US (1) US5735209A (fr)
EP (1) EP0765749B1 (fr)
JP (1) JPH09123413A (fr)
KR (1) KR970015028A (fr)
CN (1) CN1080199C (fr)
AT (1) ATE192082T1 (fr)
BR (1) BR9603914A (fr)
CZ (1) CZ253596A3 (fr)
DE (2) DE19536268C1 (fr)
ES (1) ES2145957T3 (fr)
IN (1) IN188210B (fr)
TW (1) TW389725B (fr)

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ES2166122T3 (es) * 1998-06-25 2002-04-01 Fischer & Krecke Gmbh & Co Procedimiento y dispositivo para la limpieza del sistema de transporte de tinta de una maquina de imprimir.
DE19848773C2 (de) * 1998-10-22 2002-11-28 Windmoeller & Hoelscher Vorrichtung zum Anstellen und Entfernen einer Farbkammerrakel an die Rasterwalze einer Druckmaschine
FR2793441B1 (fr) * 1999-05-11 2001-08-03 Saint Eloi Mecanique Outil Sa Dispositif pour l'encrage d'un anilox d'une machine a impression flexographique
SE527080C2 (sv) * 2004-05-05 2005-12-20 Akeboose Internat Ab Anordning och förfarande för kammarrakel
DE102008012552A1 (de) * 2008-03-04 2009-09-17 Windmöller & Hölscher Kg Farbkammerrakel an einer Druckmaschine
US8491452B2 (en) * 2009-08-28 2013-07-23 Xerox Corporation Pressure rolls, apparatuses useful in printing and methods of making pressure rolls
DE202009013643U1 (de) 2009-10-26 2011-03-17 Zeljko, Kitic Dichtelement
US20140230672A1 (en) * 2011-11-03 2014-08-21 Tetra Laval Holdings & Finance S.A. Apparatus for flexographic printing of a web of packaging material
CN103350570B (zh) * 2013-06-14 2015-07-15 长兴宏峰纺织印染有限公司 印花圆网自动刮浆机用清理装置
DE102015005535A1 (de) * 2015-05-03 2016-11-03 Harris & Bruno Europe GmbH Reinigungsvorrichtung für eine Walze, Druck- oder Beschichtungswerk sowie Verfahren zum Reinigen einer Walze
CN108638658A (zh) * 2016-04-11 2018-10-12 云和县东泽阀门有限公司 一种输墨斗紧固机构
CN107791683A (zh) * 2017-11-24 2018-03-13 株洲三新包装技术有限公司 一种刮墨刀刀架
FR3084013B1 (fr) * 2018-07-18 2020-07-31 Bobst Lyon Racle, chambre a racles et groupe imprimeur ainsi equipe
GB2577894A (en) * 2018-10-09 2020-04-15 Absolute Engineering Ltd Cleaning system and method
CN110091589A (zh) * 2018-12-13 2019-08-06 株洲三新包装技术有限公司 两端向内喷水吹气清理的刮墨刀刀架
CN112046128A (zh) * 2019-06-05 2020-12-08 至善实业股份有限公司 凹版印刷机的同向封闭式刮刀装置
GB202005190D0 (en) 2020-04-08 2020-05-20 Absolute Engineering Ltd Cleaning system and mnethod
CN115352189B (zh) * 2022-09-14 2023-06-16 武汉信息传播职业技术学院 一种用于印刷机的双刮刀循环供墨装置

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Also Published As

Publication number Publication date
EP0765749A1 (fr) 1997-04-02
CN1151356A (zh) 1997-06-11
IN188210B (fr) 2002-08-31
KR970015028A (ko) 1997-04-28
DE59605030D1 (de) 2000-05-31
BR9603914A (pt) 1998-06-09
ES2145957T3 (es) 2000-07-16
CN1080199C (zh) 2002-03-06
JPH09123413A (ja) 1997-05-13
TW389725B (en) 2000-05-11
US5735209A (en) 1998-04-07
DE19536268C1 (de) 1997-02-06
ATE192082T1 (de) 2000-05-15
CZ253596A3 (en) 1997-04-16

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