EP1110728A1 - Système de dosage pour un liquide dans une unité de revêtement - Google Patents

Système de dosage pour un liquide dans une unité de revêtement Download PDF

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Publication number
EP1110728A1
EP1110728A1 EP00127631A EP00127631A EP1110728A1 EP 1110728 A1 EP1110728 A1 EP 1110728A1 EP 00127631 A EP00127631 A EP 00127631A EP 00127631 A EP00127631 A EP 00127631A EP 1110728 A1 EP1110728 A1 EP 1110728A1
Authority
EP
European Patent Office
Prior art keywords
chamber
profile body
doctor blade
reservoir
dosing system
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.)
Granted
Application number
EP00127631A
Other languages
German (de)
English (en)
Other versions
EP1110728B1 (fr
Inventor
Jürgen Schölzig
Guido Dipl.-Ing. Reschke
Reihold Dipl.-Ing. Guba
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 AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1110728A1 publication Critical patent/EP1110728A1/fr
Application granted granted Critical
Publication of EP1110728B1 publication Critical patent/EP1110728B1/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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers

Definitions

  • a metering system of this type is a chambered doctor blade with a assigned roller with wells and webs EP 0 629 501 A1 is known.
  • the chambered doctor blade has one end closed housing with a chamber formed inside and a positive one in the direction of rotation of the roller Closing doctor blade and a negative working doctor blade on.
  • the chambered doctor also has one in the bottom Part of the chamber feeding supply line and one in the upper Return line for the coating medium that discharges part of the chamber on.
  • the axis is parallel to the roller over the length the chamber a brush as a profile body with the inner wall of the Housing connected, which is in contact with the circumference of the roller is.
  • the brush is approximate arranged in the middle of the chamber, so that an upper and a lower reservoir is formed within the chamber.
  • the brush in the chamber is positive assigned the closing blade directly adjacent.
  • the brush is designed to prevent air bubbles from entering the reservoir Avoid altogether or in the lower reservoir, because this negatively affects the filling of the wells in a Anilox roller affects.
  • the disadvantage here is that the brush by the constant Contact with the anilox roller is subject to wear and that when processing fast-curing coating liquids, such as. Water-based varnish, the Brush structure glued or at least clogged and needs to be cleaned.
  • EP 0 568 674 B1 discloses a metering system with a chambered doctor blade and a screened application roller for processing solvent-containing pressure fluids, in particular for flexographic printing.
  • This chambered doctor blade has a profile body which is connected to the inner wall of the housing and which has a pressure nose arranged at a distance from the roller in the direction of the roller.
  • the pressure lug has a recess in the direction of rotation of the roller in order to achieve an abrupt expansion of the cross-section of the reservoir in the direction of rotation of the roller behind the pressure lug within the chamber.
  • the disadvantage here is that with this design, possible air bubbles can be transported from the first reservoir (injection and pre-washing chamber) with the pressure fluid into the second reservoir (rinsing chamber) in the direction of rotation of the roller and there can impair the filling process of the cups of the applicator roller.
  • the profile body with a pressure lug has a bypass slot and a ventilation slot, which connect the first to the second reservoir.
  • the invention has for its object a dosing system of the type described above to create that Avoids disadvantages, in particular a more uniform Filling the wells of an anilox roller allowed and Formation of bubbles within the dosing system is reduced.
  • the task is solved by the training features of the main claim. Further training results itself from the subclaims.
  • a first advantage is that the dosing system universal for higher machine speeds, in particular for printing presses.
  • a sheet-fed rotary printing machine with approx. 15,000 sheets / h cited.
  • Another advantage is that starting from the anilox roller a more uniform layer thickness of the coating liquid guaranteed on the substrate in a printing press becomes.
  • Another advantage is that the chambered doctor blade due to a simple design of the contour in the interior is cleanable and the formation of nests for weaning Coating liquid is noticeably reduced.
  • the simple one Contour is also advantageous when cleaning the Chamber doctor blade and possibly the anilox roller is required.
  • the dosing system specifically of the doctor blade, - depending on the coating order - optionally with a one-piece reservoir (without profile body) or with a two-part reservoir (with profile body) is operable.
  • the profile body is detachable, at least connectable to the inner wall of the chamber space.
  • the invention is based on an embodiment in the form of a Sheet-fed rotary printing machine will be explained in more detail.
  • a metering system 5 consisting of a screened application roller 3 with cups and webs and a chamber doctor blade 4 is assigned to a forme cylinder 2 in a coating unit.
  • the form cylinder 2 carries, for example, a rubber blanket (Planographic printing form) or a flexible high-pressure form and has a cylinder channel.
  • This forme cylinder 2 is with a sheet-guiding pressure cylinder 1 in functional connection, wherein the printing cylinder 1 based on the forme cylinder 2 twice is large and two diametrically offset Sheet holding systems for sheet transport in the conveying direction 6 having.
  • the rastered applicator roller 3 is 18 in its direction of rotation a positive closing doctor blade 13 and a negative employed working doctor blade 10, which on the chamber doctor blade 4 are arranged, assigned.
  • the doctor blade 4 instructs in known a housing with arranged on the front Boundary walls, so that the screened application roller 3 a chamber space is formed.
  • a feed line 7 feeds in a reservoir 11 adjacent to the working doctor blade 10 (in 2 in the lower area of the chamber space) a coating liquid and a return line 8 runs a reservoir 12 adjacent to the closing doctor blade 13 (in Fig. 2 the upper area of the chamber space) the excess Coating liquid via a collecting system that is open at the top 9 from.
  • the supply and return lines 7,8 operated as a circulation system by means of a feed and suction pump.
  • a profile body 14 arranged axially parallel to the rastered application roller 3 within the chamber space of the chamber doctor blade 4 is connected with its rear side 25 to the inner wall 16 of the chamber space by means of a releasable connection 15.
  • the inner wall 16 is preferably flat and the back 25 of the profile body 14 assigned to the inner wall 16 is also flat. In a further development, the inner wall 16 itself can releasably receive a part of the profile body 14 in a form-fitting manner.
  • the chamber space of the doctor blade 4 for receiving the coating liquid is formed by the optional use of the detachably arranged profile body 14 in a first reservoir 11 in the area of the working doctor blade 10 and a second reservoir 12 in the area of the closing doctor blade 13.
  • the profile body 14 preferably extends over the full length within the chamber space of the chamber doctor blade 4 and is arranged without contact to the adjacent applicator roller 3, so that a gap 17 is formed between the profile body 14 and the circumference of the applicator roller 3 such that the gap 17 starts can be flowed through from the reservoir 11 to the reservoir 12 by a coating liquid.
  • the detachable connection 15 between the inner wall 16 and the profile body 14 can preferably be achieved by positive locking or non-positive locking. Some examples are shown in FIG. 4.
  • the structure of the doctor blade 4 is identical to the training acc. Fig. 2, however, the feed line and the return line 7,8 are not shown for reasons of clarity.
  • a non-positive connection of this type can be achieved, for example, by means of permanent magnets arranged on the inner wall 16 and / or the profile body 14, axially parallel to the application roller 3 (FIG. 4a).
  • the profile body 14 is connected to an expandable clamping body, the clamping body releasably holding the releasable connection 15 within the chamber space.
  • the profile body 14 is received in a clamping body, which forms the releasable connection 15 with the inner wall 16 in a form-fitting manner, for example by means of a screw connection.
  • the profile body 14 is designed as a releasable connection 15 by means of a screw connection with the inner wall 16.
  • the profile body 14 is formed with a concavity 19 of the side surfaces in the direction of the gap 17 and the front side has a plateau 21.
  • the side surfaces and or the plateau 21 are formed with a convex curvature 20.
  • 3b is the cross section of the profile body 14 with a semicircular curvature 22, according to FIG. 3c as a triangle 24, according to. Fig. 3d as a trapezoid 23 and gem.
  • the profile body 14 on the inner wall 16 by means of the releasable Connection 15 attachable.
  • the profile body 14 further prevents further penetration of air bubbles and depending on the coating liquid also the possible foam formation.
  • the flow direction opposite to the direction of rotation 18 of the application roller 3 the coating liquid in the gap 17 Penetration of the air bubbles counteracted. Since the gap 17th is relatively narrow in relation to the reservoirs 11, 12, the pressure of the coating liquid increases and improves the filling of the cups of the applicator roller 3.
  • Reservoir 11 is then used for the final filling of the cells with coating liquid and the negative Working doctor blade 10 scrapes the excess coating liquid from the webs of the application roller 3.
  • the profile body is 14 for certain coating orders Removable or again from the chamber of the doctor blade 4 applicable.

Landscapes

  • Coating Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Medicinal Preparation (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
EP00127631A 1999-12-22 2000-12-16 Système de dosage pour un liquide dans une unité de revêtement Expired - Lifetime EP1110728B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29922546U DE29922546U1 (de) 1999-12-22 1999-12-22 Dosiersystem für Beschichtungsflüssigkeiten in einer Beschichtungseinheit
DE29922546U 1999-12-22

Publications (2)

Publication Number Publication Date
EP1110728A1 true EP1110728A1 (fr) 2001-06-27
EP1110728B1 EP1110728B1 (fr) 2007-01-31

Family

ID=8083371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127631A Expired - Lifetime EP1110728B1 (fr) 1999-12-22 2000-12-16 Système de dosage pour un liquide dans une unité de revêtement

Country Status (3)

Country Link
EP (1) EP1110728B1 (fr)
AT (1) ATE353048T1 (fr)
DE (2) DE29922546U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710020A1 (fr) * 2005-04-04 2006-10-11 NORDMECCANICA S.p.A. Unité de distribution pour machines d'assemblage, avec des systèmes de recirculation de l'adhésif

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0020279D0 (en) * 2000-08-18 2000-10-04 Mead Corp Substrate coating
DE10164773A1 (de) 2001-09-03 2003-07-17 Kroenert Max Maschf Druckkammerrakel
DE102007011630A1 (de) * 2007-03-09 2008-09-11 OCé PRINTING SYSTEMS GMBH Vorrichtung zum Auftragen eines Fluids auf einen Bedruckstoff
DE102008019433A1 (de) * 2008-04-17 2009-12-03 Hauni Maschinenbau Ag Beleimung von Materialstreifen der Tabak verarbeitenden Industrie
CN106694316B (zh) * 2015-07-20 2019-03-15 宜兴威尼特集装袋有限公司 纸袋打筒机点胶装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368485A2 (fr) * 1988-10-31 1990-05-16 Seiken Graphics, Inc. Impression lithographique
US5239925A (en) * 1992-06-02 1993-08-31 Ronald L. Harper Ink distribution apparatus
EP0629501A1 (fr) 1993-06-17 1994-12-21 DeMoore, Howard W. Dispositif d'enduction "anilox" avec brosse
DE4444034A1 (de) * 1994-12-10 1996-06-13 4 P Folie Forchheim Gmbh Einrichtung zum Auftragen eines hochviskosen Mediums
EP0568674B1 (fr) 1991-11-26 1996-08-07 Namic B.V. Racle du reservoir d'encre d'un element destine au transfert d'encre
US5826509A (en) * 1995-10-18 1998-10-27 Deneka; P. Kenneth Printing coating head device
DE19754684A1 (de) * 1997-12-10 1999-06-17 Pagendarm Technologie Gmbh Vorrichtung zum Auftragen eines fließfähigen Mediums auf eine bewegte Oberfläche

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368485A2 (fr) * 1988-10-31 1990-05-16 Seiken Graphics, Inc. Impression lithographique
EP0568674B1 (fr) 1991-11-26 1996-08-07 Namic B.V. Racle du reservoir d'encre d'un element destine au transfert d'encre
US5239925A (en) * 1992-06-02 1993-08-31 Ronald L. Harper Ink distribution apparatus
EP0629501A1 (fr) 1993-06-17 1994-12-21 DeMoore, Howard W. Dispositif d'enduction "anilox" avec brosse
DE4444034A1 (de) * 1994-12-10 1996-06-13 4 P Folie Forchheim Gmbh Einrichtung zum Auftragen eines hochviskosen Mediums
US5826509A (en) * 1995-10-18 1998-10-27 Deneka; P. Kenneth Printing coating head device
DE19754684A1 (de) * 1997-12-10 1999-06-17 Pagendarm Technologie Gmbh Vorrichtung zum Auftragen eines fließfähigen Mediums auf eine bewegte Oberfläche

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710020A1 (fr) * 2005-04-04 2006-10-11 NORDMECCANICA S.p.A. Unité de distribution pour machines d'assemblage, avec des systèmes de recirculation de l'adhésif
AU2006201416B2 (en) * 2005-04-04 2010-09-09 Nordmeccanica S.P.A. Spreading unit for bonding machines, with adhesive recirculation systems

Also Published As

Publication number Publication date
DE29922546U1 (de) 2000-02-17
ATE353048T1 (de) 2007-02-15
EP1110728B1 (fr) 2007-01-31
DE50014022D1 (de) 2007-03-22

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