EP1521677A2 - Transport d'encre et nettoyage de racle dans une presse rotative - Google Patents

Transport d'encre et nettoyage de racle dans une presse rotative

Info

Publication number
EP1521677A2
EP1521677A2 EP03735525A EP03735525A EP1521677A2 EP 1521677 A2 EP1521677 A2 EP 1521677A2 EP 03735525 A EP03735525 A EP 03735525A EP 03735525 A EP03735525 A EP 03735525A EP 1521677 A2 EP1521677 A2 EP 1521677A2
Authority
EP
European Patent Office
Prior art keywords
ink
line
doctor
valve
paint
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Withdrawn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
EP03735525A
Other languages
German (de)
English (en)
Inventor
Lutz Telljohann
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 EP1521677A2 publication Critical patent/EP1521677A2/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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 method and a device for supplying and discharging printing ink to and from a doctor device of an inking unit of a rotary printing press and for cleaning the doctor device, which consists of a doctor blade carrier provided with a longitudinal groove with doctor blades which can be set on an inking roller and which together with the inking roller and the channel delimit an inking chamber, and consists of lines and motor-operated pumping devices for supplying and removing ink or cleaning agent into and out of the inking chamber.
  • this object is achieved by the features of claim 1. Furthermore, this object is also achieved in a device of the type specified at the outset in that two pump devices are provided, the parameters of which are preset, and that, if necessary, part of the ink is derived from the ink flow supplied to the doctor device and / or from the doctor device discharged ink flow, part of the ink of the doctor device is fed back.
  • the object on which the invention is based is also achieved in a device of the type specified at the outset in that two pumping devices are provided, of which the first override valves draw in paint or a cleaning agent from a paint container or a cleaning agent container and convey it into the ink chamber, and of which the second Pumping device conveys a paint-air mixture from the paint chamber into the paint container or detergent or paint-containing detergent into a used detergent-containing dirt container, and that the supply line is connected via a controllable valve to a line leading to the paint container in which a adjustable throttle or flow control valve is arranged.
  • the method and the device according to the invention enable the ink to be circulated during printing and the squeegee device to be cleaned with only two pumps.
  • at least one bypass is provided according to the invention, which consists of a line branching off the supply lines.
  • the branching line expediently leads the paint back directly into the paint tank.
  • the suction pump has a higher pumping capacity than the suction pump, it is advantageous in addition to or instead of the first bypass the first bypass to provide a line leading from the pressure side of the suction pump to the feed line of the doctor chamber.
  • the bypass line branching off from the supply line and / or the line leading from the pressure side of the discharge pump to the supply side of the doctor chamber are expediently each equipped with a shut-off valve and / or a flow rate limiting valve.
  • the flow rate limiting valves are set empirically, for example, in such a way that a part of the ink conveyed by the suction pump is immediately returned to the ink tank or that the ink conveyed away by the suction pump is made available again to the feed side of the doctor chamber. Overall, it is thus ensured that during the printing operation, the volumes supplied to and from the ink chamber are approximately the same, taking into account the fact that the ink in the ink chamber is enriched with air.
  • the fill level of the ink in the doctor blade chamber is monitored by a sensor and, when the fill levels exceed or fall below certain limits, the throttle or flow rate limiting valves are adjusted via a control circuit so that the fill level is again within the limits.
  • the two pump devices consist of two chambers of a double diaphragm pump with only one drive shaft, such double diaphragm pumps with separate chambers, one of which can take over the forward and the other the return, are for example from the company ALMATEC Maschinenbau GmbH in D-47475 Kamp-Lintfort.
  • the two chambers of the double diaphragm pump expediently have the same pump volume.
  • the feed line can be provided with a line leading to the dirt tank, which has a valve and an adjustable throttle or flow rate limiting valve.
  • This line is a bypass line through the cleaning agent pumped into the doctoring chamber during the cleaning of the doctoring device can be returned in order to take into account the inconvenience that the cleaning agent is also enriched with air during the cleaning process, so that the volume returned from the doctoring chamber is greater than the pumped in during the cleaning process Volume. Since the cleaning agent returned through the bypass line is not or hardly contaminated, it can be expedient to let the bypass line open into the tank for the clean cleaning agent.
  • FIG. 1 Schematic representation of the device with bypass devices on the feed side
  • FIG. 2 Schematic representation of the device with bypass device on the discharge side
  • a feed line 2 which is connected to the pressure side of a pump chamber 3 of the double diaphragm pump 3, 4, opens into the central region of the ink chamber, which is part of the doctor device 1.
  • the suction side of the pump chamber 3 of the double diaphragm pump 3, 4 can be connected via way or shut-off valves 5, 6 either to the suction line 7, which opens into the paint tank 8, or to the suction line 9, which opens into the tank 10 for clean detergent
  • a line 12 is connected to the supply line 2 via a directional or shut-off valve 11, in which line an adjustable throttle or flow rate limiting valve 13 is arranged.
  • a throttle valve 25 can also be provided in the feed line 2.
  • the suction side of the second pump chamber 4 of the double diaphragm pump 3, 4 is connected to the return lines 14, 15, which are connected laterally to the ink chamber of the doctor device 1, the pressure side of the second pump chamber 4 of the double diaphragm pump 3, 4 is connected to a line 16, which Can be connected via directional or shut-off valves 17, 18 to a line 19 leading to the paint tank 8 or to a line 21 opening into the dirt tank 20 for used cleaning agent.
  • a further line 24 can be connected to the supply line 2 via a directional or shut-off valve 23, in which an adjustable throttle or flow rate limiting valve 25 is arranged and which opens into the dirt tank 20.
  • valve 5 When printing operation starts and during printing operation, valve 5 is in its closed basic position. Ink is conveyed through the pump chamber 3 of the double diaphragm pump 3, 4 and the feed line 2 into the ink chamber of the doctor device 1 via the suction line 7 and the valve 6 which is open in the basic position. During the printing operation, printing ink or air-mixed printing ink is conveyed back into the ink tank 8 via the return lines 14, 15 and the second pumping chamber 4 of the double diaphragm pump 3, 4, the line 16 and the valve 17 when the valve 18 is closed.
  • the pumping chambers 3 of the double diaphragm pump 3, 4 have an equal or larger delivery volume than the pumping chamber 4 and the returned ink has a larger volume than the ink supplied through the supply line 2, despite the removal of ink by the printing material due to its enrichment with air the printing operation on the line 12 and the throttle valve 13 a subset of the printing ink conveyed back at 'open valve 11 into the ink tank 8, so that delivered volumes corresponding to the feed ratio of the two pumping chambers 3 4.
  • the valve 6 is closed and, when the valve 5 is open, clean cleaning agent is drawn in from the tank 10 via the line 9 and introduced into the ink chamber via the feed line 2 with the valve 11 closed.
  • ink displaced by the cleaning agent is first introduced into the ink tank 8 via the valve 18 and the line 19 when the valve 18 is closed.
  • the valve 17 is closed and the valve 18 is opened, and the cleaning agent or solvent contaminated with paint is introduced into the dirt tank 20 via the line 21.
  • a line 24 can be connected to the supply line 2 via the valve 23, in which the adjustable throttle and flow rate limiting valve 25 is arranged and which opens into the dirt tank 20 Via this line 24, cleaning agent can then be introduced into the dirt tank in order to take into account the fact that cleaning agent which is returned via the lines 14, 15 is enriched with air. If clean cleaning agent is to be branched off from the supply line 2, the line 24 could also enter the Open tank 10 for clean detergent.
  • FIG. 2 shows a further preferred embodiment of the invention, the illustration of the detergent tanks and lines being dispensed with for reasons of clarity.
  • the pumping chamber 4 of the double diaphragm pump 3, 4 has a much greater output than the pumping chamber 3, then part of the removed paint of the feed line 2 must be returned via the return line 27.
  • a throttle or flow limiting valve 29 is provided to regulate the backflow.
  • a further shut-off valve 28 can be provided, which is closed when the paint is to be pumped out of the paint chamber.
  • the bypass 27, 28, 29 shown in FIG. 2 can of course also be installed in a device according to FIG. 1.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant d'amener de l'encre d'imprimerie dans un dispositif de racle d'un mécanisme d'encrage d'une presse rotative et d'évacuer cette encre dudit dispositif de racle. Ce dispositif de racle comprend un support de racle comportant une rainure longitudinale ainsi que des racles qui peuvent être positionnées sur un rouleau encreur ou un rouleau tramé et qui délimitent une chambre à encre avec le rouleau encreur et ladite rainure. Le dispositif de racle comprend en outre des conduites et des dispositifs de pompage entraînés par des moteurs qui servent à amener de l'encre dans la chambre à encre et à évacuer l'encre de cette dernière. Les moteurs utilisés présentent des paramètres qui sont prédéterminés et ne peuvent être modifiés en cours d'utilisation. En cas de besoin, une partie du courant d'encre fourni au dispositif de racle est évacuée et/ou une partie du courant d'encre évacuée du dispositif de racle est réintroduite dans la conduite d'amenée.
EP03735525A 2002-06-10 2003-05-30 Transport d'encre et nettoyage de racle dans une presse rotative Withdrawn EP1521677A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1025681 2002-06-10
DE10225681A DE10225681B4 (de) 2002-06-10 2002-06-10 Verfahren und Vorrichtung zum Zu- und Abführen von Druckfarbe zu und von einer Rakelvorrichtung eines Farbwerks einer Rotationsdruckmaschine und/oder zum Reinigen der Rakelvorrichtung
PCT/EP2003/005788 WO2003103964A2 (fr) 2002-06-10 2003-05-30 Procede et dispositif permettant d'amener de l'encre d'imprimerie dans un dispositif de racle d'un mecanisme d'encrage d'une presse rotative ainsi que d'evacuer cette encre de ce dispositif et/ou de nettoyer ce dispositif de racle

Publications (1)

Publication Number Publication Date
EP1521677A2 true EP1521677A2 (fr) 2005-04-13

Family

ID=29718924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735525A Withdrawn EP1521677A2 (fr) 2002-06-10 2003-05-30 Transport d'encre et nettoyage de racle dans une presse rotative

Country Status (5)

Country Link
US (1) US7555982B2 (fr)
EP (1) EP1521677A2 (fr)
AU (1) AU2003238201A1 (fr)
DE (1) DE10225681B4 (fr)
WO (1) WO2003103964A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102008042460A1 (de) 2008-09-29 2010-04-08 Windmöller & Hölscher Kg Vorrichtung und Verfahren zur Versorgung eines Farb- oder Druckwerks einer Druckmaschine mit Druckfarbe oder einer anderen Flüssigkeit

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DE102004058570B3 (de) * 2004-12-03 2006-06-01 Technotrans Ag Vorrichtung zur Zufuhr von Waschmittel
ES2323215B1 (es) * 2007-11-19 2010-04-23 Enviroxi S.L. Metodo de limpieza de un dispositivo de rasquetas.
US20090291217A1 (en) * 2008-05-21 2009-11-26 Harris & Bruno Machine Co., Inc. Doctor blade supply system with intelligent viscosity logic
DE102009046078A1 (de) * 2009-10-28 2011-05-05 Koenig & Bauer Aktiengesellschaft Vorrichtung zur Druckeinstellung in einer Kammerrakel
DE102012103850B3 (de) * 2012-05-02 2013-07-25 Windmöller & Hölscher Kg Vorrichtung zur Einstellung eines Betriebsparameters einer Farbe für einen Druckprozess einer Rotationsdruckmaschine sowie Verfahren hierzu
CN102991097B (zh) * 2012-11-23 2015-09-16 辽宁超烁图码科技板业有限公司 一种凹版印刷机
KR101779025B1 (ko) * 2013-04-02 2017-09-18 한화테크윈 주식회사 반자동 브레이드 교체용 스퀴지 장치
CN103625108B (zh) * 2013-12-12 2015-04-08 黄山金菱新材料有限公司 一种油墨凹版印刷机的循环供墨系统
DE102015010126A1 (de) 2015-08-10 2017-02-16 Windmöller & Hölscher Kg Farbkreislauf eines Farbwerks einer Flexo- oder Tiefdruckmaschine
CN105966059A (zh) * 2016-06-12 2016-09-28 郑国义 油墨供应系统
CN108177424A (zh) * 2016-12-07 2018-06-19 苏州欣航微电子有限公司 一种丝网印刷机
CN113661067A (zh) * 2019-04-05 2021-11-16 博斯特比勒费尔德有限公司 墨供应系统
ES2913645T3 (es) * 2019-04-19 2022-06-03 Lee Sheng Tsung Sistema de entrega de fluido
JP6901517B2 (ja) * 2019-04-22 2021-07-14 李聖聰 液体輸送システム
AU2019203402B2 (en) * 2019-05-15 2021-01-21 Lee, Sheng-Tsung Mr Fluid delivery system
DE102020109973A1 (de) * 2020-04-09 2021-10-14 Dürr Systems Ag Beschichtungsmittelpumpe, Beschichtungsanlage und zugehöriges Betriebsverfahren
DE102020126348A1 (de) 2020-10-08 2022-04-14 Koenig & Bauer Ag Vorrichtung zum Transport von Druckfarbe in einer Flexodruckmaschine oder Tiefdruckmaschine

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DE19548535C2 (de) * 1995-12-22 1999-12-30 Windmoeller & Hoelscher Verfahren und Vorrichtung zur Reinigung einer Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine
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DE102008042460A1 (de) 2008-09-29 2010-04-08 Windmöller & Hölscher Kg Vorrichtung und Verfahren zur Versorgung eines Farb- oder Druckwerks einer Druckmaschine mit Druckfarbe oder einer anderen Flüssigkeit

Also Published As

Publication number Publication date
WO2003103964A3 (fr) 2004-07-01
DE10225681B4 (de) 2010-02-04
AU2003238201A8 (en) 2003-12-22
AU2003238201A1 (en) 2003-12-22
DE10225681A1 (de) 2004-01-08
WO2003103964A2 (fr) 2003-12-18
US20060114303A1 (en) 2006-06-01
US7555982B2 (en) 2009-07-07

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