EP1683632A2 - Dispositif de mouillage et dispositif de nettoyage d'une machine à imprimer - Google Patents

Dispositif de mouillage et dispositif de nettoyage d'une machine à imprimer Download PDF

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Publication number
EP1683632A2
EP1683632A2 EP05023713A EP05023713A EP1683632A2 EP 1683632 A2 EP1683632 A2 EP 1683632A2 EP 05023713 A EP05023713 A EP 05023713A EP 05023713 A EP05023713 A EP 05023713A EP 1683632 A2 EP1683632 A2 EP 1683632A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
slot
printing machine
moistening device
closing force
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Withdrawn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
EP05023713A
Other languages
German (de)
English (en)
Other versions
EP1683632A3 (fr
Inventor
Siegbert Nadolny
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.)
Baldwin Germany GmbH
Original Assignee
Baldwin Germany GmbH
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 Baldwin Germany GmbH filed Critical Baldwin Germany GmbH
Publication of EP1683632A2 publication Critical patent/EP1683632A2/fr
Publication of EP1683632A3 publication Critical patent/EP1683632A3/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Withdrawn legal-status Critical Current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
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/044—Slits, i.e. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/30—Damping devices using spraying elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed

Definitions

  • the invention relates to a printing machine moistening device for moistening an object in a printing press.
  • the invention relates to a printing machine washing device, which includes such a printing machine moistening device, for cleaning cylinders and rollers of a printing press.
  • a washing device which has a pressing element for pressing a washing cloth to be cleaned, a rotating cylinder or to be cleaned, a rotating roller.
  • the washing cloth is gradually transported from a supply roll to a dirty cloth roll.
  • a plurality of nozzles is provided which are distributed over the width of the washing cloth for dispensing liquid at a corresponding plurality of locations on the washing cloth.
  • a plurality of spaced humidification points are formed on the object to be humidified by a plurality of nozzles along a straight path.
  • the problem to be solved to provide a way by which small dosed amounts of liquid evenly distributed over a large width on an object (wash cloth, cylinders, rollers, rollers) can be applied in printing presses.
  • the risk should be as small as possible, that after switching off the liquid supply still drips liquid from the moistening device.
  • the invention relates to a printing machine moistening device for moistening objects in a printing machine, characterized by at least one slit nozzle with openable and zuhnbarem nozzle slot, the slit nozzle is elastically bendable at least in a partial area for performing the on and to movements of the nozzle lips of the nozzle slot.
  • the invention also relates to a printing machine washing device provided with such a moistening device; for cleaning rotating cylinders and rollers in a printing machine.
  • the invention may be used to apply liquid to a washcloth and, alternatively, to apply liquid to a rotating cylinder or roll or to a rotating roll in a printing press.
  • an uninterrupted wetting line is produced on the object to be moistened along a straight path. Furthermore, the invention prevents dripping of liquid after switching off the liquid supply to the slot nozzle.
  • the slot nozzle is held in the closed position by an elastic closing force and can be automatically opened against the elastic closing force by a liquid dispensing pressure of a liquid to be dispensed from the slot nozzle in the slot nozzle.
  • the slot nozzle is formed by a spring element, preferably by a biased in the closing direction of the nozzle slot spring element. This embodiment is particularly inexpensive.
  • the invention may also include a clamping device, through which the nozzle lips of the nozzle slot, preferably elastically, are urged into the closed position.
  • the invention includes the possibilities of: a) supplying a different type of liquid to a slot nozzle; b) several, z. B. to provide two slot nozzles, each slot nozzle is supplied with a different liquid; and c) providing two or more slot nozzles for delivery of a larger quantity of the same liquid or for delivery of different components of a liquid.
  • Liquids can z. For example: fresh water; Detergent or solvent-containing liquid; UV-dye-dissolving liquid; Dampening water, which is used for fountain solution offset printing.
  • printing machine moistening device for moistening objects in printing machines contains at least one, according to the preferred embodiment, two parallel juxtaposed slot nozzles 2 and 4, which are at least in a partial area, preferably a total of resiliently bendable for performing up and Zumonyen of Nozzle lips 6, 8 of the nozzle slot 10.
  • the slot nozzle 2, 4 is held by an elastic closing force in the closed position and the slot nozzle can be automatically opened by a liquid discharging pressure generated in the slot nozzle of a liquid to be dispensed from the slot nozzle against the elastic closing force.
  • FIG. 1 shows the nozzle slot 10 in a slightly opened state.
  • the elastic closing force can be generated in various ways.
  • One type is that the closing force is generated by the material of the slot nozzle 2, 4 itself.
  • Another possibility is that the closing force is generated by an external clamping device.
  • a third possibility is to produce the closing force both by the material of the slot nozzle and additionally by an external tensioning device.
  • the slot nozzle 2 or 4 in total consists of a spring element.
  • the spring element is designed such that it has a nozzle slot 10 in the closed position urging bias.
  • Fig. 1 shows clamping elements or clamping elements 12 and 14, through which the two slot nozzles 2 and 4 are each held in a receiving channel 16 and 18 in a bar 19 in a defined position.
  • the clamping elements 12, 14 may be spring elements made of metal or rubber. They can be clamped without or preferably with clamping force between the slot nozzle 2 or 4 and the wall of the receiving channel 16 or 18, so that they hold the slot nozzle in position.
  • the clamping elements 12, 14 may also be designed such that they exert on the slot nozzles 2, 4 a closing the nozzle slot 10 clamping force.
  • the clamping elements 12 and 14 can also be acted upon by compressed air hoses.
  • the clamping elements 12 and 14 are pressurizable hoses, then their closing force can be set so weak that the nozzle slot 10 can be opened by the liquid discharge pressure in the slot nozzle 2 and 4 respectively.
  • the pressure of the compressed air may also be so high that the nozzle slots 10 can not be opened by the liquid discharge pressure, but only when the pressure of the compressed air is reduced.
  • the slot nozzles 2 and 4 are liquid-tight closed at their ends, either by end walls of the slot nozzles 2, 4 itself or by end walls of the receiving channels 16 and 18th
  • Fig. 1 shows schematically liquid inlet openings 20 and 22 in the slot nozzles 2 and 4 at an end face of the slot nozzles 2, 4.
  • the liquid inlet openings 20, 22 may also be provided at a different location.
  • the slot nozzles 2, 4 may have a plurality of liquid inlet openings 20, 22.
  • Figures 1 to 3 show the moistening device, which consists of at least one of the slot nozzles 2 and 4, integrated in a washing device 31 for cleaning cylinders or for cleaning rolls of printing machines, in particular of offset printing machines.
  • the nozzle slot 10 of the slot nozzles 2 and 4 extends in each case substantially over the entire width of a wash cloth or to be cleaned lateral surface (circumferential surface) of the cylinder to be cleaned or the roller to be cleaned, and ends in each case a short distance from the lateral edges of the wash cloth or the surface area to be cleaned, in such a way that the liquid emerging from the nozzle slot spreads over the entire width of the wash cloth or the region of the jacket surface to be cleaned.
  • the slot nozzles 2, 4 are integrated into a cloth pressing device 30 of a washing device 31 for dispensing liquid from the nozzle slot 10 and then through a dispensing slot 32 of the cloth pressing device 30.
  • the discharge slot 32 is a slot opening in a pressure element or according to FIG. 1, a gap between two mutually parallel pressure elements 34 and 36 for pressing a wash cloth 40 to the cylinder to be cleaned or to be cleaned roller.
  • FIG. 2 shows the bar 19 in a comparison with FIG. 1 greatly reduced representation.
  • Fig. 3 shows the washing cloth 40, which, for example, in the direction of arrow 42, from a supply roll 44 (cleaning cloth roll) is gradually wound on a dirty cloth roll 46.
  • the washing device 31 or only the pressing elements 34, 36 or the bar 19 with the pressing elements 34, 36, depending on the embodiment of the invention
  • a spindle 54 of the dirty cloth roll 46 can be driven by a drive device 56.
  • the slot opening 10 of the slot nozzle 2 and 4 is held by the resilient material of the slot nozzle in a slightly open position or without closing force in the closed position, so that the nozzle slot 10 by an external force, such as the clamping elements 12, 14th , must be closed or at least the nozzle lips 6, 8 must be pressed together to keep the nozzle slot 10 so tight that no liquid can escape, except when a predetermined liquid discharge pressure is generated in the liquid.
  • the liquid discharge pressure may or may not exceed the closing pressure, in which case the closing pressure must be reduced when the liquid discharge pressure is generated to discharge liquid from the nozzle slot 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP05023713A 2005-01-22 2005-10-29 Dispositif de mouillage et dispositif de nettoyage d'une machine à imprimer Withdrawn EP1683632A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510003030 DE102005003030A1 (de) 2005-01-22 2005-01-22 Druckmaschinen-Befeuchtungsvorrichtung und Druckmaschinen-Waschvorrichtung

Publications (2)

Publication Number Publication Date
EP1683632A2 true EP1683632A2 (fr) 2006-07-26
EP1683632A3 EP1683632A3 (fr) 2009-05-20

Family

ID=36169175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05023713A Withdrawn EP1683632A3 (fr) 2005-01-22 2005-10-29 Dispositif de mouillage et dispositif de nettoyage d'une machine à imprimer

Country Status (2)

Country Link
EP (1) EP1683632A3 (fr)
DE (1) DE102005003030A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310630A (zh) * 2010-06-30 2012-01-11 海德堡印刷机械股份公司 用于在印刷机中喷射液体的喷射杆
EP2433715A1 (fr) * 2010-07-02 2012-03-28 Nordson Corporation Applicateur multi-fentes avec fonction de fermeture automatique
WO2012156183A1 (fr) * 2011-05-16 2012-11-22 Kraussmaffei Technologies Gmbh Filière plate à lèvres flexibles

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90013C (fr) * 1895-09-29 1896-12-28
US4193552A (en) * 1977-10-20 1980-03-18 Ishikawa Ken Ichi Liquid sprayer pipe with inclined slits
DE29612400U1 (de) * 1996-07-17 1996-09-12 Roland Man Druckmasch Reinigungsvorrichtung für einen Zylinder einer Druckmaschine
DE19516422A1 (de) * 1995-05-04 1996-11-07 Bernd Dr Brenner Druckmaschine mit einer für einen Zylinder vorgesehenen Reinigungseinrichtung
DE29708470U1 (de) * 1997-05-13 1997-07-10 Roland Man Druckmasch Reinigungsvorrichtung für einen Zylinder oder eine Walze einer Druckmaschine
DE20015014U1 (de) * 2000-08-31 2000-12-21 Haake Hinrich Tankreinigungsvorrichtung mittels Düsenventil
US6371392B1 (en) * 2000-06-01 2002-04-16 Lee E. Steinman Nozzle construction
EP1486330A2 (fr) * 2003-06-12 2004-12-15 Baldwin-Japan Ltd. Dispositif de nettoyage d'un cylindre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE537488C (de) * 1930-01-27 1931-11-04 Maurer Alfred Foliengiessvorrichtung
CH256858A (de) * 1946-12-05 1948-09-15 Hauser Max Verfahren und Einrichtung zum Befeuchten der Druckplatten von Druckmaschinen.
DE2826135C2 (de) * 1978-06-15 1982-11-18 Baldwin-Gegenheimer GmbH, 8900 Augsburg Gummituch-Waschvorrichtung
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
DE4216389A1 (de) * 1992-05-18 1993-11-25 Baldwin Gegenheimer Gmbh Druckwerks-Waschvorrichtung für Druckmaschinen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90013C (fr) * 1895-09-29 1896-12-28
US4193552A (en) * 1977-10-20 1980-03-18 Ishikawa Ken Ichi Liquid sprayer pipe with inclined slits
DE19516422A1 (de) * 1995-05-04 1996-11-07 Bernd Dr Brenner Druckmaschine mit einer für einen Zylinder vorgesehenen Reinigungseinrichtung
DE29612400U1 (de) * 1996-07-17 1996-09-12 Roland Man Druckmasch Reinigungsvorrichtung für einen Zylinder einer Druckmaschine
DE29708470U1 (de) * 1997-05-13 1997-07-10 Roland Man Druckmasch Reinigungsvorrichtung für einen Zylinder oder eine Walze einer Druckmaschine
US6371392B1 (en) * 2000-06-01 2002-04-16 Lee E. Steinman Nozzle construction
DE20015014U1 (de) * 2000-08-31 2000-12-21 Haake Hinrich Tankreinigungsvorrichtung mittels Düsenventil
EP1486330A2 (fr) * 2003-06-12 2004-12-15 Baldwin-Japan Ltd. Dispositif de nettoyage d'un cylindre

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310630A (zh) * 2010-06-30 2012-01-11 海德堡印刷机械股份公司 用于在印刷机中喷射液体的喷射杆
CN102310630B (zh) * 2010-06-30 2015-04-22 海德堡印刷机械股份公司 用于在印刷机中喷射液体的喷射杆
EP2433715A1 (fr) * 2010-07-02 2012-03-28 Nordson Corporation Applicateur multi-fentes avec fonction de fermeture automatique
AU2011203175B2 (en) * 2010-07-02 2013-07-25 Nordson Corporation Multi-slot applicator with automatic closing function
US8640641B2 (en) 2010-07-02 2014-02-04 Nordson Corporation Multi-slot applicator with automatic closing function
US9168539B2 (en) 2010-07-02 2015-10-27 Nordson Corporation Method of applying thermoplastic liquid onto a substrate
WO2012156183A1 (fr) * 2011-05-16 2012-11-22 Kraussmaffei Technologies Gmbh Filière plate à lèvres flexibles

Also Published As

Publication number Publication date
EP1683632A3 (fr) 2009-05-20
DE102005003030A1 (de) 2006-07-27

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