EP2163387B1 - Procédé et dispositif destinés au nettoyage de cylindres d'une presse rotative - Google Patents

Procédé et dispositif destinés au nettoyage de cylindres d'une presse rotative Download PDF

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Publication number
EP2163387B1
EP2163387B1 EP20090168247 EP09168247A EP2163387B1 EP 2163387 B1 EP2163387 B1 EP 2163387B1 EP 20090168247 EP20090168247 EP 20090168247 EP 09168247 A EP09168247 A EP 09168247A EP 2163387 B1 EP2163387 B1 EP 2163387B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
dryer
continuous flow
printing press
washing
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.)
Not-in-force
Application number
EP20090168247
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German (de)
English (en)
Other versions
EP2163387A2 (fr
EP2163387A3 (fr
Inventor
Martin Maier
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 EP2163387A2 publication Critical patent/EP2163387A2/fr
Publication of EP2163387A3 publication Critical patent/EP2163387A3/fr
Application granted granted Critical
Publication of EP2163387B1 publication Critical patent/EP2163387B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices

Definitions

  • the invention relates to a method for cleaning printing press cylinders of a web-fed rotary printing press, in particular web-fed rotary offset printing press according to patent claim 1, and to a device for carrying out a method for cleaning printing press cylinders of a corresponding printing press according to the preamble of claim 9.
  • the publication US 5,277,111 relates to a system for cleaning rotating cylindrical surfaces, such as the blankets of intermediate cylinders in offset printing presses.
  • the system has a correspondingly assigned cleaning device for each intermediate cylinder, each of which has a rotationally driven brush roller.
  • the brush roller is mounted so that it can be selectively engaged with the associated intermediate cylinder to remove paint and foreign matter therefrom.
  • the system further includes means for, if necessary, directing cleaning fluid to the intermediate cylinder to facilitate its cleaning.
  • the printing press cylinder of a web-fed rotary printing press pollute in the course of printing a printing web (for example, made of paper) in particular by an attachment or build sticky paint residues and sticking (Paper) dust with increasing pressure duration in increasing mass.
  • a printing web for example, made of paper
  • Paper sticky paint residues and sticking
  • cleaning liquid or detergent in the form of a solvent emulsion or in the form of a pure solvent directly to the paper web and to solve by means of the paper web the dirt from the printing press cylinders and transported away.
  • the process passes in the case of persistent web handling (the Bedruckbahn) to or on the printing web and with the printing web in a arranged behind the printing unit thermal continuous dryer, which for Drying of the ink is provided on the printing web is conveyed causes an additional solvent load in the dryer.
  • the Bedruckbahn persistent web handling
  • the printing web in a arranged behind the printing unit thermal continuous dryer, which for Drying of the ink is provided on the printing web is conveyed causes an additional solvent load in the dryer.
  • the dryer requires about 2 to 10 minutes after the end of the wash program. until the exhaust air volume is regulated back to the original value, which is actually necessary for the printing process.
  • the high energy consumption is partly due to the high performance of the exhaust fans and on the other hand by an increased heating energy consumption for keeping constant the temperature prevailing in the dryer.
  • Fig. 1 is an example of a web-fed rotary printing press, a web-processing web-fed rotary offset printing machine (hereinafter also abbreviated as printing machine) with a downstream thermal continuous dryer 5 (hereinafter referred to as dryer 5) schematically which serves to illustrate a possible field of application for a method according to the invention and a device 10 according to the invention.
  • dryer 5 a thermal continuous dryer 5
  • the use of the method according to the invention and also of the device 10 according to the invention is not limited to such a printing machine.
  • all imaginable rotary printing presses, in particular web-fed offset printing machines in any configuration any number of printing units, any continuous driers and also any other accessories
  • Fig. 1 passes through a printing web 1, which is unrolled from a (supply) roll 2, four active, ie printing printing units 3.1 - 3.4, in which the respective image colors are printed.
  • printing machine cylinders 4 in the form of blanket cylinders, which consist of a cylinder base body and a rubber blanket arranged thereon, are dyed in each case and then release the ink applied to them onto the printing web 1.
  • the respective blanket associated with the corresponding printing machine cylinder 4 transfers the ink and fountain solution, which also sits on the ink-free areas, to the printing web 1.
  • the moisture content of the printing web 1 grows accordingly by the application of the ink and the dampening solution.
  • the printing inks are thickened in a dryer 5, which is formed in the described rotary web offset printing machine in the form of a continuous dryer, that after a subsequent cooling, which by a Running the printing web is achieved via surfaces of cooling rollers 6, have a machinable in a subsequent folder 7, no longer lubricating surface.
  • the dryer 5 there is an elevated temperature to evaporate volatiles.
  • the dryer 5 is a multi-zone dryer having three zones in the embodiment described herein. As a result, a temperature profile can be realized with different predetermined temperatures assigned to one zone in each case.
  • the blanket cylinder 4 cleaning liquid is applied either on the printing press cylinder 4 itself, on the printing web / paper web or on a cleaning device in the form of a cleaning cloth or in the form of cleaning brushes and the dissolving dirt by receiving members, z. B. by a clocked with feed cleaning cloth or, if the printing web to the surface (s) of / the blanket cylinder (s) are employed, also eliminated by the printing web.
  • the printing is inevitably interrupted for a period of time in which web material continues to be conveyed, but appears as a copy of maculature in the exit of the folder.
  • the printing web 1 is used during the cleaning process usually for the expiration of the contaminants and the cleaning liquid, wherein the detergent entry on the printing web 1 is not negligible at least during a cleaning process with voltage applied to the printing press printing cylinders 4 (pressure-on-cleaning).
  • the unwinding of the wet wipes from the cleaning on the printing web 1 at a pressure-on cleaning causes wetting of the printing web 1 at least in sections.
  • cleaning liquid which consists in part of organic, flammable vapors forming solvents, introduced into the dryer 5. This solvent entry must be taken into account when carrying out a washing program.
  • a device according to the invention 10 The implementation and in particular the introduction and the control of a washing program is carried out by a device according to the invention 10.
  • a possible embodiment of this is exemplified in Fig. 2 is shown.
  • the embodiment according to Fig. 2 includes a control panel 12 for input of parameters and instructions / commands by an operator, for example, to enter a desired wash (eg, pressure-on-cleaning or pressure-cleaning, starting washing, production washing) and one in the Printing device processed paper type, etc.
  • 12 outputs of the car wash in particular outputs of a control device 14 of the car wash (eg information of the car wash) are shown on the control panel.
  • the control device 14 is connected to the operating panel 12 via a first data and control line 16.
  • a program memory 18 is further integrated (this could, of course, also represent a separate device and communicate with the control device 14 via corresponding data and control lines).
  • the program memory 18 are the possible washing programs for various parameters, in particular for different state parameters of the dryer 5 and various constraints of the printing machine, such as e.g.
  • the control device 14 and the integrated program memory 18 are connected via a second data and control line 22 to a computing unit 20 in connection.
  • the arithmetic unit 20 serves to check the requirements of washing programs contained in the program memory 18 with regard to their known information or (state) parameters for their feasibility. If a washing program can be carried out taking into account the information / parameters, then the arithmetic unit 20 releases it for this purpose while the non-executable washing programs are blocked.
  • the arithmetic unit 20 in the described embodiment requires, for example, manually via the control panel 12 or via a suitable interface (not shown) electronically input information about immutable or unchangeable for long periods , to the Part dryer-specific parameters such as information on the lower explosion limit of the cleaning fluid, a density thereof, a ventilation coefficient of the dryer 5, a retention factor of the cleaning device and a retention amount of the printing press cylinder 4 and a spray and metered amount of cleaning liquid per unit time and a cross-flow factor of the dryer. 5 These values are factory-set in the described embodiment and can be adjusted via the operating panel 12 as required.
  • the arithmetic unit 20 in addition to its connection to the control device 14 and the program memory 18 via a third data and control line 24 to the control panel 12 in connection.
  • the arithmetic unit 20 requires information about variable or frequently / continuously changing parameters, such as a (current) exhaust volume of the dryer 5 and a current temperature thereof or the current temperatures of the individual zones of the dryer 5.
  • the information or parameters or state conditions are received or received in the arithmetic unit 20 by an integrated condition condition receiving device 21 and then processed in the arithmetic unit 20.
  • the sending of the condition conditions from the dryer 5 in the described embodiment is triggered by a state condition interrogator 15 integrated in the controller 14 which sends a wash signal before a wash. Alternatively, it is also conceivable that no wash signal is sent, but the condition conditions are sent continuously or at predetermined intervals without own request from the dryer 5.
  • a selection device 13 which is integrated in the described embodiment in the control device 14, makes the decision as to which washing program is carried out.
  • This decision is made in particular taking into account the boundary conditions of the printing press, such as that of FIG paper type, the number of printed copies since the last wash, the number of cylinder rotations since the last wash, the web width, the printing unit order, the paper type, the paper grammage, the color type, the areal coverage of the print, the washcoat type, the detergent type, and the liquid type, respectively , the cylinder circumference and the cylinder width of the printing press cylinder, the web speed, the dampening solution composition as well as the dampening solution quantity and the degree of soiling of the printing press cylinders.
  • the selection device 13 is connected via the control device 14 via a fifth data and control line 28 with a printing machine interface 26 in connection, which in turn with the web-fed rotary offset printing machine (in a manner not shown) in combination. Furthermore, the printing machine interface 26 is connected to the arithmetic unit 20 via a sixth data and control line 35.
  • the cleaning device 10 a device for dispensing cleaning fluid and their associated receiving members for the loosening dirt (cleaning cloth) on.
  • Fig. 2 additionally schematically illustrated the dryer 5, which is connected via an interface 36 and via a seventh data and control line 37 to the dryer interface 30 in connection.
  • the dryer 5 has a dryer control device 38 which communicates with the interface 36 via an eighth data and control line 40.
  • the dryer 5 is further connected via a second interface 42, which is designed as a two-channel interface and a corresponding error safety ("one-sure-sure"), via a ninth data and control line 44 with a second dryer interface 46 in connection.
  • a further (tenth) data and control line 48 is the second dryer interface 46 with a second control device 50, which in the described embodiment in the Device 10 is arranged, but may of course also be arranged outside the device 10 in alternative embodiments, in conjunction.
  • the second control device 50 is additionally connected via an eleventh data and control line 56 to a flow measuring device interface 58, again in the form of a two-channel interface, which communicates with a flow measuring device (not shown in the figures).
  • the flow measuring device serves to determine the current detergent application, ie the amount of detergent or cleaning fluid currently applied or the volume of cleaning fluid currently being applied. This can ensure that, especially in the event of a fault, not too much cleaning liquid gets into the dryer 5.
  • the second control device 50 requires in addition to the flow values which are requested via the flow measuring device interface 58, the current dryer condition conditions (ie dryer temperature and exhaust volume and / or a maximum solvent throughput or cleaning liquid throughput G max ), which they via the interfaces 42 and 46 receives.
  • the device for monitoring the flow may, for example, be a flow meter or a level measuring device which measures the fill level in a cleaning liquid reservoir or a device which measures a conveyed amount of cleaning liquid. If the detergent entry increases beyond the maximum permissible or desired maximum detergent input, the second control device 50 breaks off the washing program or the washing process via a twelfth data and control line 60, with which it is in communication with the control device 14.
  • All data and control lines are designed in the described embodiment for bidirectional data traffic and transmit electrical signals in digital form.
  • a transmission of analog signals or data is conceivable.
  • data transmission between two or more components of the device 10 via lines and wireless data transmissions for example by means of radio waves, z. B. Blue tooth or by means of optical signals conceivable.
  • the state condition receiving device 21 is a stand-alone component of the device 10 or is integrated, for example, in the control device 14 or another component of the device 10. The same applies to the state condition inquiry device 15, which of course does not have to be integrated into the control device 14.
  • the second control device 50 can also be arranged outside the device 10, for example in the dryer 5.
  • a message in the described embodiment in the form of a simple signal
  • This signal causes the dryer control device 38, the current state conditions, ie the above-explained variable parameters of the dryer 5 (current exhaust volume, dryer temperature or temperatures of the respective zones of the dryer 5), which are included in the decision of the computing unit 20, again via the interfaces 36 and 30 as well as the data and control lines 34, 37, 40 to send to the arithmetic unit 20 integrated state condition receiving device 21.
  • the arithmetic unit 20 then contacts the program memory 18 of the control device 14 via the data and control lines 22 and releases the washing programs suitable for the current state parameters.
  • washing program for the current parameters is sent by the control device 14 in turn via data and control lines 32, 37, 40 and via the interfaces 30 and 36 a message to the dryer 5, with which receives this command to increase the volume of exhaust air.
  • the lowest possible exhaust air quantity closest to the current exhaust air quantity is preferably activated, which permits a washing program.
  • the temperature of the dryer 5 is not changed in the presently described embodiment, which would also be possible and conceivable in alternative embodiments. Thereafter, in turn, the current state parameters are queried, whereupon an assessment and possibly a release of one or more washing programs by the arithmetic unit 20 takes place.
  • a corresponding released washing program is then started.
  • the selection of the wash program can be either automatic or user-controlled.
  • the total detergent quantity and the washing time T for the entire washing program in grams must obey the following relation: M Max ⁇ 1 - F R - R ⁇ 1 / T ⁇ 1 / V ⁇ G Max .
  • M max the total amount of detergent for the complete washing program in grams
  • F R - the retention factor of the cleaning unit
  • T - the washing time or the entry time of detergent in s
  • R - the amount of retention of printing press cylinders, in particular blanket and cylinders in grams
  • V - the evaporation factor of the detergent or of the cleaning fluid
  • G max the limit value of the dryer, ie the maximum permissible cleaning fluid or solvent throughput to the dryer during blanket washing.
  • G max is dependent on the exhaust volume of the dryer 5, the ventilation coefficient thereof, the lower explosion limit of the cleaning liquid, as well as the cross-flow factor and / or longitudinal flow factor of the dryer 5.
  • the temperature of the dryer 5 and the value of G max which can be calculated, for example, in the control device 38 of the dryer 5, are transferred to the arithmetic unit 20.
  • the control device 38 of the dryer 5 knows the values for the lower explosion limit, for the transverse flow factor of the dryer 5, the ventilation coefficient of the dryer 5, the instantaneous exhaust air volume and the instantaneous temperature of the dryer 5.
  • the first three values are preferably preset in the factory, while the last two values are received continuously.
  • washing program selection takes place, but that a corresponding washing program is recreated.
  • a completely new washing program may be created, that an existing washing program be adapted accordingly, or that a new washing program be assembled from already existing, predefined program blocks.
  • a wash program with minimum requirements (minimum wash program) is executed, which meets the requirements due to its program flow in any case (with each exhaust air volume and with each dryer temperature).

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

Claims (13)

  1. Procédé de nettoyage de cylindres (3.1 - 3.4) d'une machine d'impression à rouleaux rotatifs, u en particulier d'une machine d'impression offset à rouleaux rotatifs qui présente au moins un mécanisme d'impression suivi par au moins un séchoir thermique (5) traversé en continu et au moins un cylindre (3.1 - 3.4) de machine d'impression du ou des mécanismes d'impression,
    le procédé étant caractérisé part les étapes suivantes :
    (a) réception en provenance du séchoir (5) traversé en continu d'un message concernant les conditions d'état qui règnent dans le séchoir traversé en continu, l'étape (a) comportant la réception du volume d'air évacué par le séchoir (5) traversé en continu,
    (b) sélection ou établissement d'un programme de lavage qui tient compte du contenu du message de l'étape (a) et, au cas où un programme adéquat de lavage n'est pas disponible, envoi au séchoir (5) traversé en continu d'un message l'invitant à modifier les conditions d'état qui y règnent et poursuite du procédé par l'étape (a) et
    (c) lancement du programme de lavage.
  2. Procédé selon la revendication 1, dans lequel l'étape (a) comporte en outre la réception d'au moins une température qui règne et/ou d'une valeur limite (Gmax) qui représente la quantité maximale souhaitée d'agent de nettoyage introduite dans le séchoir (5) traversé en continu.
  3. Procédé selon les revendications 1 ou 2, dans lequel l'étape suivante :
    (0) envoi au séchoir (5) traversé en continu d'un message qui indique qu'une opération de lavage doit être lancée
    est exécutée avant l'étape (a).
  4. Procédé selon la revendication 3, dans lequel l'envoi du message de l'étape (0) est réalisé par un dispositif (15) de demande des conditions d'état.
  5. Procédé selon l'une des revendications précédentes, dans lequel le message du séchoir (5) traversé en continu à l'étape (a) est reçu par le dispositif (21) de demande des conditions d'état.
  6. Procédé selon la revendication 5, dans lequel l'étape (b) comporte la sous-étape suivante :
    (b-1) lancement de programmes de lavage appropriés en tenant compte du contenu du message de l'étape (a) et/ou blocage de programmes de lavage inappropriés.
  7. Procédé selon la revendication 6, dans lequel le lancement de l'étape (b-1) s'effectue en tenant compte de valeurs fixes prédéterminées pour une limite d'explosion et/ou pour une valeur secondaire de ventilation et/ou pour un facteur d'écoulement transversal.
  8. Procédé selon l'une des revendications précédentes, dans lequel les conditions d'état qui règnent dans le séchoir (5) traversé en continu ainsi qu'au moins un paramètre qui concerne la quantité effectivement apportée de liquide de nettoyage sont reçus par un deuxième dispositif de commande (50) pendant l'exécution du programme de lavage, le deuxième dispositif de commande (50) décidant sur la base des paramètres reçus si le programme de lavage peut être poursuivi ou si un signal d'interruption est envoyé au dispositif de commande (14).
  9. Dispositif (10) en vue de la mise en oeuvre d'un procédé de nettoyage de cylindres (3.1 - 3.4) d'une machine d'impression à rouleaux rotatifs, u en particulier d'une machine d'impression offset à rouleaux rotatifs qui présente au moins un mécanisme d'impression suivi par au moins un séchoir thermique (5) traversé en continu et au moins un cylindre (3.1 - 3.4) de machine d'impression du ou des mécanismes d'impression, et dans lequel :
    le dispositif (10) présente un dispositif (21) de réception des conditions d'état configuré de telle sorte que des conditions d'état du séchoir traversé en continu puissent être reçues avant l'exécution d'une opération de nettoyage ou de lavage,
    caractérisé en ce que
    le dispositif (10) présente en outre un dispositif (15) de demande des conditions d'état et
    en ce que le dispositif (21) de réception des conditions d'état présente un dispositif de réception du volume d'air évacué.
  10. Dispositif (10) selon la revendication 9, dans lequel le dispositif (21) de réception des conditions d'état présente un dispositif de réception de température et/ou un dispositif de réception de valeurs limites.
  11. Dispositif (10) selon les revendications 9 ou 10, dans lequel le dispositif (15) de demande des conditions d'état est intégré dans un dispositif de commande (14) du dispositif (10).
  12. Dispositif (10) selon l'une des revendications 9 à 11, dans lequel le dispositif (21) de réception des conditions d'état est intégré dans une unité (20) de calcul.
  13. Dispositif (10) selon l'une des revendications 9 à 12, dans lequel le dispositif (10) présente en outre un deuxième dispositif de commande (50) configuré pour recevoir les conditions d'état qui règnent dans le séchoir (5) traversé en continu ainsi qu'au moins un paramètre qui concerne la quantité effectivement apportée de liquide de nettoyage et pour décider sur la base de ces paramètres si une opération de lavage peut être poursuivie ou doit être interrompue.
EP20090168247 2008-09-15 2009-08-20 Procédé et dispositif destinés au nettoyage de cylindres d'une presse rotative Not-in-force EP2163387B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008047429A DE102008047429A1 (de) 2008-09-15 2008-09-15 Verfahren und Vorrichtung zum Reinigen von Zylindern einer Rollenrotations-Druckmaschine

Publications (3)

Publication Number Publication Date
EP2163387A2 EP2163387A2 (fr) 2010-03-17
EP2163387A3 EP2163387A3 (fr) 2011-11-02
EP2163387B1 true EP2163387B1 (fr) 2013-03-20

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Application Number Title Priority Date Filing Date
EP20090168247 Not-in-force EP2163387B1 (fr) 2008-09-15 2009-08-20 Procédé et dispositif destinés au nettoyage de cylindres d'une presse rotative

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DE (1) DE102008047429A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011080897A1 (de) * 2011-08-12 2013-02-14 Koenig & Bauer Aktiengesellschaft Verfahren zum Abführen von einem in einem Waschmittel enthaltenen Lösungsmittel und von einem in mindestens einer Druckfarbe enthaltenen Lösungsmittel jeweils aus einer Druckeinheit einer Druckmaschine
DE102011080903A1 (de) * 2011-08-12 2013-02-14 Koenig & Bauer Aktiengesellschaft Verfahren zum Abführen von einem in einem Waschmittel enthaltenen Lösungsmittel und von einem in mindestens einer Druckfarbe enthaltenen Lösungsmittel jeweils aus einer Druckeinheit einer Druckmaschine
DE102011080896A1 (de) * 2011-08-12 2013-02-14 Koenig & Bauer Aktiengesellschaft Verfahren zur Einstellung einer Menge eines Lösungsmittel haltigen Waschmittels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508711A (en) 1967-12-29 1970-04-28 Ryco Graphic Mfg Fluid dispensing system
US4344361A (en) 1979-04-19 1982-08-17 Baldwin-Gegenheimer Corporation Automatic blanket cylinder cleaner
DE3841411C1 (fr) 1988-12-08 1990-07-26 Baldwin-Gegenheimer Gmbh, 8900 Augsburg, De
US5109770A (en) * 1989-09-22 1992-05-05 Oxy-Dry Corporation Printing cylinder cleaning system
ATE361833T1 (de) * 2004-11-30 2007-06-15 Oxy Dry Maschinen Gmbh Verfahren und vorrichtung zur reinigung von zylindern einer druckmaschine

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EP2163387A2 (fr) 2010-03-17
EP2163387A3 (fr) 2011-11-02
DE102008047429A1 (de) 2010-04-15

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