EP1050408B1 - Dispositif de nettoyage des machines d'impression - Google Patents

Dispositif de nettoyage des machines d'impression Download PDF

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Publication number
EP1050408B1
EP1050408B1 EP00106655A EP00106655A EP1050408B1 EP 1050408 B1 EP1050408 B1 EP 1050408B1 EP 00106655 A EP00106655 A EP 00106655A EP 00106655 A EP00106655 A EP 00106655A EP 1050408 B1 EP1050408 B1 EP 1050408B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cleaning
pressing element
section
circumferential face
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
EP00106655A
Other languages
German (de)
English (en)
Other versions
EP1050408A1 (fr
Inventor
Peter Seyfried
Michael Werner Anders-Woschick
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 EP1050408A1 publication Critical patent/EP1050408A1/fr
Application granted granted Critical
Publication of EP1050408B1 publication Critical patent/EP1050408B1/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
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices

Definitions

  • the invention relates to a printing machine cleaning device for Clean the circumferential surface of a routing cylinder that is on at least two positions distributed around its circumference Has grippers for gripping a printed sheet containing a pressing element, through which during a cleaning operation one about this Pressing element extending cloth section of a cleaning cloth alternately adjustable to the circumferential surface of the cylinder and again can be switched off, with the cleaning cloth in the set position Contacted peripheral surface and in the parked position, in which it is the Peripheral surface is not contacted to a predetermined Cleaning cloth section is transportable.
  • the invention particularly relates to the cleaning of an impression cylinder in a sheetfed press.
  • a printing machine cleaning device of this type is known from US 4,344 361 (DE 30 05 469 C2) known.
  • Your pressure element consists of a inflatable rubber lip.
  • the cleaning cloth is on its way from one Clean cloth roll to the rubber lip moistened by a nozzle device and after the rubber lip wound on a roll of dirty cloth.
  • the cleaning cloth is only transported on or forwarded if if the cleaning cloth from the rubber lip does not touch the one to be cleaned Surface is pressed, but is at a small distance from it.
  • the object of the invention is to achieve a better cleaning to achieve the cylinder, especially additional pollution of the Grippers and pits formed in the cylinder during the cleaning process avoid.
  • a Control device which is dependent on predetermined Angle of rotation positions of the cylinder during a cleaning operation Applying and setting down the pressure element on the circumferential surface of the cylinder controls such that during a first cleaning phase of the Cleaning operation with each cylinder revolution, the pressure element on the Cylinder peripheral surface is employed as long as a predetermined one cleaning first cylinder circumferential section passes him, but that Pressure element is turned off from the cylinder circumferential surface as long as predetermined second cylinder circumferential section passes him that during a second cleaning phase of the cleaning company for everyone Cylinder rotation the pressing element on the cylinder peripheral surface is employed as long as the predetermined second to be cleaned Cylinder circumferential section passes him, but the pressing element of the cylinder peripheral surface is turned off as long as the predetermined first Cylinder circumferential section passes by it that each of the circumferential sections of the cylinder begins at one of the gripper assemblies and before another the gripper assemblies ends.
  • control device is designed such that it the pressing element already together with the cleaning cloth section contacting him within the area of the gripper arrangement from the parked position in the position moved:
  • control device is designed such that it Pressing element together with the contacting him Cleaning cloth section just before, before the gripper assembly of the reaches the pressure element to be cleaned, from moved from the parked position to the employed position.
  • Another preferred embodiment of the invention provides that the Pressure element by compressed gas, in particular compressed air in the direction of Cylinder peripheral surface is expandable lip.
  • the dirty cleaning cloth can no longer attach its dirt to the Grapple or the edges of the pits in which the grapples are pivotally mounted. This will remove the grippers from the Cleaning cloth only cleaned, but no longer with dirt from the Grippers previous cylinder peripheral section dirty. Also will Avoided that the cleaning cloth carries dirt into the pits. This has a consistently good function of the gripper which leads to Holding and releasing sheets of paper swivel movements To run. By reducing contamination of the grabs these also have a longer lifespan.
  • pens which are arranged under the grippers and of which the grippers are pivoted away so that the pins the relevant end of a Paper sheet can push away from the cylinder, so that the paper sheet end run onto a shaving comb and are thereby removed from the cylinder can.
  • FIG. 1 schematically shows the print image transmission in a printing press from a printing plate cylinder 2 via a blanket cylinder 4 on printing sheets 6, for example sheets of paper or sheets of another material such as For example, plastic, which in its direction of rotation 8 one Back pressure cylinder 10 are held by grippers 12 at the front end.
  • the grippers 12 are pivotally mounted in a pit or longitudinal groove 14 and can from the gripping position shown in Fig.1 into the pit 14 into a Release position can be pivoted automatically to the front end of the sheet 16 to release after printing.
  • Under the free end sections of the Grippers 12 are in the impression cylinder 10 pins 18, which in the the pit 14 pivoted back release position of the gripper 12 the free Lift off the bow ends 16 from the impression cylinder 10 so that the free Run up the bow end on a shear comb 20 and thereby the Sheet of paper 6 can be removed from the impression cylinder 10.
  • FIG. 1 shows two pits 14 arranged diametrically opposite one another and associated arrangements of grippers 12 and pins 18. According to others However, embodiments can also have three or more arrangements of grippers 12 and associated pits 14 are provided be for a corresponding number of printed sheets 6.
  • the printed sheets 6 are only shown schematically in FIG. 1 because the invention a cleaning device and a cleaning method for Clean the peripheral surface of the impression cylinder 10, wherein during the cleaning operation no sheets 6 on the Impression cylinder 10 are arranged.
  • the cleaning device contains a pressure element 20, through which during a cleaning operation, this pressing element extending cloth section 22 of a cleaning cloth 24 alternately the peripheral surface of the impression cylinder 10 adjustable and again can be switched off.
  • the cleaning cloth 24 contacts in the employed position the peripheral surface of the impression cylinder 10, being immobile is positioned, while in the parked position it the peripheral surface of the Back pressure cylinder 10 is not contacted and a predetermined Cloth section 22 from a clean cloth roll 26 to a dirty cloth roll 28 is transported further.
  • the Control device 30 is preferably an electronic device with at least one data processor and with control programs which can be solid or at least some of which are preferably free are programmable.
  • the control device 30 is designed according to the invention such that it depending on predetermined rotational angle positions of the Impression cylinder 10 and depending on the number of Revolutions of this impression cylinder 10 starting and stopping the Pressure element 20 controls or regulates.
  • the control device 30 causes that during a first cleaning phase of a cleaning company the pressing element with each cylinder revolution 20 is only employed on the peripheral surface of the impression cylinder 10, as long as a predetermined first cylinder peripheral portion 10A to be cleaned runs past it, but the pressing element 20 from the peripheral surface is turned off as long as a predetermined second cylinder peripheral portion 10B past him.
  • the control device 30 Switching through which the pressing element 20 by the circumferential distance between the two successive arrangements of grippers 12 is offset and turned on the impression cylinder 10.
  • the pressure element 20 the peripheral surface of the impression cylinder 10 turned on as long as predetermined second cylinder peripheral portion 10B to be cleaned thereon passes, but the pressing element 20 from the peripheral surface of the Back pressure cylinder 10 turned off as long as the predetermined first Cylinder peripheral portion 10A runs past it.
  • Each of the peripheral portions 10A and 10B of the impression cylinder 10 begins at one of the arrays of grippers 12 and ends at the following Arrangement of grippers 12.
  • Arrangement of grippers 12 In the embodiment shown in Fig.1 are two such arrangements of several grippers 12 diametrically opposite each other arranged opposite to the outer circumference of the cylinder.
  • the control device 30 is also designed such that it has a Further transport or advance of the cleaning cloth 24 by one predetermined cloth section 22 only during the time which the pressing element 20 of the concerned Cylinder peripheral portion, 10A or 10B is turned off.
  • At least one, preferably several, is complete Revolutions of the impression cylinder 10 a cloth section 22 of the Pressure element 20 only on the cylinder peripheral portion 10A and the gripper 12 applied, but not on the other Cylinder circumferential section 10B and its gripper 12. Every time this another cylinder circumferential section 10B passes the counter pressure element 20, the cleaning cloth 24 is transported further by a cloth section 22. Then the control device 30 switches in the manner mentioned, so that then with each cylinder revolution the pressure element 20 with the Cloth section 22 is abutted to the cylinder peripheral section 10B, however is turned off from the other cylinder peripheral portion 10A, so that in the different cylinder circumferential portion 10A every cylinder revolution Further transport of the cleaning cloth 24 by the length of a cloth section 22 takes place.
  • the cloth section 22 by the pressing element 20 already in Area of the gripper 12 or just before in the area of the associated pit 14 in to bring the employed position.
  • the pressing element 20 is preferably one by compressed air pneumatic circuit 32 toward the peripheral surface of the Impression cylinder 10 from the parked position to the employed Position movable lip, especially rubber lip, like this from the mentioned US 4,344,361.
  • the cleaning cloth from a clean cloth roll on a Gradually wrap the roll of dirty cloth.
  • the cleaning cloth with water or another liquid To moisten moistening device 36 so that it acts as a washcloth.
  • the cleaning cloth can be a be pre-moistened cloth.

Landscapes

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

Claims (5)

  1. Dispositif de nettoyage pour machine à imprimer destiné à nettoyer la surface périphérique d'un cylindre rotatif (10) qui, dans au moins deux zones réparties sur sa périphérie, comporte des systèmes à griffes (12) destinés à saisir une feuille à imprimer, comprenant un élément de pression (20), au moyen duquel une partie (22) d'un blanchet de nettoyage, qui est tendu sur cet élément de pression, peut en alternance, pendant un cycle de nettoyage, être amenée en appui contre la surface périphérique du cylindre et en être à nouveau retirée, sachant que le blanchet de nettoyage dans la position en appui est en contact avec la surface périphérique et dans la position en retrait, dans laquelle il n'est pas en contact avec la surface périphérique, peut continuer à être déroulé sur une longueur prédéfinie du blanchet de nettoyage, caractérisé en ce qu'il est prévu une unité de commande (30) qui, en fonction des positions d'angle de rotation prédéfinies du cylindre pendant un cycle de nettoyage, commande la mise en contact et le retrait de l'élément de pression (20) contre la surface périphérique du cylindre, de telle sorte que, pendant une première phase de nettoyage du cycle de nettoyage, à chaque rotation du cylindre, l'élément de pression (20) est en appui contre la surface périphérique du cylindre, tant qu'une première partie (10A) prédéfinie de la surface périphérique du cylindre à nettoyer passe devant ledit élément de pression, toutefois l'élément de pression (20) est retiré de la surface périphérique du cylindre, tant qu'une deuxième partie (10B) prédéfinie de la surface périphérique du cylindre passe devant ledit élément de pression, en ce que, pendant une deuxième phase de nettoyage du cycle de nettoyage, à chaque rotation du cylindre, l'élément de pression (20) est en appui contre la surface périphérique du cylindre, tant que la deuxième partie (10B) prédéfinie de la surface périphérique du cylindre à nettoyer passe devant ledit élément de pression, toutefois l'élément de pression (20) est retiré de la surface périphérique du cylindre, tant que la première partie (10A) prédéfinie de la surface périphérique du cylindre passe devant ledit élément de pression, en ce que chaque partie périphérique (10A, 10B) du cylindre commence au niveau de l'un des systèmes à griffes (12) et se termine en amont d'un autre système à griffes (12).
  2. Dispositif de nettoyage pour machine à imprimer selon la revendication 1, caractérisé en ce que l'unité de commande (30) est conçue de telle sorte que, déjà à l'intérieur de la zone munie du système à griffes (12), elle déplace l'élément de pression (20) conjointement avec la partie (22) du blanchet de nettoyage en contact contre ce dernier, de la position en retrait vers la position de mise en contact.
  3. Dispositif de nettoyage pour machine à imprimer selon la revendication 1, caractérisé en ce que l'unité de commande (30) est conçue de telle sorte que, déjà peu de temps avant, avant que le système à griffes (12) de la partie périphérique du cylindre à nettoyer n'atteigne l'élément de pression, elle déplace l'élément de pression (20) conjointement avec la partie (22) du blanchet de nettoyage en contact contre ce dernier, de la position en retrait vers la position de mise en contact.
  4. Dispositif de nettoyage pour machine à imprimer selon une des revendications précédentes, caractérisé en ce que l'élément de pression (20) est une lèvre expansible en direction de la surface périphérique du cylindre sous l'effet d'un gaz comprimé, en particulier de l'air comprimé.
  5. Dispositif de nettoyage pour machine à imprimer selon une des revendications précédentes, caractérisé en ce que les griffes (12) sont logées de manière pivotante avec une de leurs extrémités dans une cavité (14) et en ce que chacune des parties périphériques du cylindre (10A, 10B) se termine en amont ou au début de la cavité de l'autre système à griffes (12).
EP00106655A 1999-05-03 2000-03-29 Dispositif de nettoyage des machines d'impression Expired - Lifetime EP1050408B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920228 1999-05-03
DE19920228A DE19920228A1 (de) 1999-05-03 1999-05-03 Druckmaschinen-Reinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1050408A1 EP1050408A1 (fr) 2000-11-08
EP1050408B1 true EP1050408B1 (fr) 2002-10-02

Family

ID=7906763

Family Applications (1)

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EP00106655A Expired - Lifetime EP1050408B1 (fr) 1999-05-03 2000-03-29 Dispositif de nettoyage des machines d'impression

Country Status (4)

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EP (1) EP1050408B1 (fr)
JP (1) JP2000343683A (fr)
CN (1) CN1272427A (fr)
DE (2) DE19920228A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488925A1 (fr) 2003-06-20 2004-12-22 Baldwin Germany GmbH Dispositif de nettoyage pour une machine d'impression de feuilles et son dispositif de contrôle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056026A1 (de) * 2000-11-11 2002-05-16 Baldwin Grafotec Gmbh Druckmaschinenzylinder-Waschvorrichtung und - Waschverfahren
DE10127442A1 (de) * 2001-06-07 2002-12-12 Baldwin Germany Gmbh Druckmaschinenzylinder-Reinigungsvorrichtung
DE102008020393A1 (de) 2008-04-23 2009-10-29 Baldwin Germany Gmbh Druckmaschinenzylinder-Reinigungsvorrichtung und Druckmaschine
DE102011012891A1 (de) * 2010-03-29 2011-09-29 Heidelberger Druckmaschinen Ag Rotationsdruckwerk mit einem Druckformzylinder und einem Übertragungszylinder
JP2013171082A (ja) * 2012-02-17 2013-09-02 Fuji Xerox Co Ltd 画像形成装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344361A (en) * 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
DE3789975T2 (de) * 1986-08-02 1994-09-08 Dainippon Printing Co Ltd Reinigungssystem für eine Druckmaschine.
DE4216243C2 (de) * 1992-05-16 1995-10-12 Kotterer Grafotec Vorrichtung zur Reinigung eines Zylinders
DE19508569B4 (de) * 1994-04-26 2006-04-06 Heidelberger Druckmaschinen Ag Verfahren zum Waschen der Mantelfläche eines Gummituchzylinders von Offset-Rotationsdruckmaschinen
DE4443356C2 (de) * 1994-12-06 1998-07-02 Roland Man Druckmasch Verfahren zur Reinigung eines Zylinders einer Rotationsdruckmaschine
DE19611126A1 (de) * 1996-03-21 1997-09-25 Heidelberger Druckmasch Ag Reinigungseinrichtung an Rotationsdruckmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1488925A1 (fr) 2003-06-20 2004-12-22 Baldwin Germany GmbH Dispositif de nettoyage pour une machine d'impression de feuilles et son dispositif de contrôle
DE10327888A1 (de) * 2003-06-20 2005-01-05 Baldwin Germany Gmbh Bogendruckmaschinen-Wascheinrichtung und Steuereinrichtung dafür

Also Published As

Publication number Publication date
DE19920228A1 (de) 2000-11-09
EP1050408A1 (fr) 2000-11-08
JP2000343683A (ja) 2000-12-12
DE50000579D1 (de) 2002-11-07
CN1272427A (zh) 2000-11-08

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