EP2163387A2 - Method and device for cleaning cylinders in a rotating roller printing press - Google Patents

Abstract

The method involves providing a thermal continuous flow dryer (5) and a cleaning device for cleaning of printing machine cylinders (4). Information e.g. actual temperature, discharge volume and limit values, of the continuous flow dryer are received in actual state conditions of the continuous flow dryer. A washing program is selected or created by considering contents of the information. The information are transmitted to the continuous flow dryer to change the actual state conditions, and the washing program is started. An independent claim is also included for a device for executing a method for cleaning printing machine cylinders.

Description

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 printing press cylinder of a web-fed rotary printing press (to the printing press cylinders, which require regular cleaning include blanket cylinder and inking roller) 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. This suffers from the important for printing point sharpness, which is lost with increasing pollution. As a consequence of this it happens that at least partial areas of the printed copies are no longer printed correctly.

To remove the dirt, clean the blanket of the press cylinder. This can be done both manually and with equipment assistance. According to the DE 30 05 469 A1 is for cleaning blanket with apparative help to the blanket cylinder of a printing unit axially parallel a cleaning bar attached, which carries a against the passing blanket in and out of touch bringable contact pressure element. The dissolved by applied cleaning liquid dirt is abraded by the pressure of a clamped on the pressing element cleaning cloth on the cylinder surface to be cleaned.

Furthermore, it is known to apply 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.

Furthermore, it is from the US 3,508,711 It is known to spray cleaning fluid onto the printing press cylinder while the printing web is running. As the cylinders rotate and the web continues to unwind in the nip, the web removes any dissolved dirt and cleaning fluid.

In addition to cleaning the printing press cylinder by means of a pressed cleaning cloth, it is also known to spray the printing press cylinder with a cleaning liquid and then to clean it with the help of brushes or spray rotating brushes with cleaning liquid.

Detergent, 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.

In order to dissipate the increased solvent load, so that the solvent content in the continuous dryer below a maximum desired amount or below a maximum limit, which is about 25% of the lower explosion limit (LEL) is in the prior art of the blanket wash before washing sent a request signal to the continuous dryer. The continuous dryer then raises its exhaust air volume to a maximum value. If the maximum exhaust air volume is reached, the washer receives a release signal of the dryer (dryer release). After the wash process, the washer control will reset the dryer request and the dryer will begin to reduce its exhaust volume to its original value. On the basis of the maximum exhaust air volume results in the maximum permitted amount of solvent input per unit of time, which may be entered through the blanket wash in the dryer. The wash programs are adjusted so that they are always below the maximum limit of about 25% of the lower explosive limit.

In such a method, however, 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. This means that the blanket wash causes high energy consumption. 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.

From the DE 38 41 411 C1 Furthermore, a method for cleaning a web-fed rotary offset printing machine is known, in which the cleaning process is carried out in a gas-concentration-controlled manner, ie in which the entry of cleaning agent is adapted to a solvent concentration detected in the dryer. Furthermore, a correspondingly suitable apparatus from the DE 38 41 411 C1 known. In addition to a high number of calculations, so it is necessary to equip the corresponding dryers with detectors for the solvent content.

Starting from the above-described prior art, it is an object of the present invention to provide a method for cleaning printing press cylinders of a web-fed rotary printing press, in which the dryer can be operated in an energy-efficient manner, with the lowest possible (especially technical) requirements for peripheral components such as the Dryer should be provided. It is another object of the present invention to provide an apparatus which can perform a corresponding cleaning process.

This object is achieved in procedural terms by a method having the features of patent claim 1, while the apparatus aspect of the task is solved by a device having the features of claim 9.

Further features of the invention are contained in the subclaims.

Fig. 1

eine schematische Darstellung einer bahnverarbeitenden Rollenrotations-Offsetdruckmaschine;

Fig. 2

eine schematische Darstellung einer erfindungsgemäßen Vorrichtung; und

Fig. 3

ein Flussdiagramm eines erfindungsgemäßen Verfahrens.

The invention will be described below by way of example with reference to the drawings with reference to a preferred embodiment. The drawings show in:

Fig. 1

a schematic representation of a web-processing web-fed rotary offset printing machine;

Fig. 2

a schematic representation of a device according to the invention; and

Fig. 3

a flowchart of a method according to the invention.

In 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. However, 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. For an application of the method according to the invention as well as the device 10 according to the invention, 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) come into question.

According to 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. For printing on the printing web 1, 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. In order to achieve the fastest possible postprocessability of the same after printing on the printing web 1, 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. In 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.

From time to time it comes (as already explained in the introduction) to disturbances of the production pressure by contamination of the ink-transferring blanket surface. The soiling is mainly caused by paper dust and no longer fresh, printable ink. For cleaning 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.

For cleaning, 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. As a result, 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.

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. Furthermore, 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. For this purpose, the control device 14 is connected to the operating panel 12 via a first data and control line 16.

In the control device 14, 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). In 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. a paper type to be printed, a number of printed copies since the last wash, a web width, a printing unit order, a paper type, a paper grammage, a color type, a dot area degree of the print, a washing type, a detergent type, a cylinder circumference and a cylinder width the printing press cylinder, a web speed, a dampening solution composition and a dampening solution and a degree of pollution of the printing press cylinder stored. 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.

In order to be able to make the correct decision regarding a lock or release of a wash program, 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. For this purpose, 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.

Furthermore, 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. This is the computing unit 20 on a fourth data and control line 34 having a dryer interface 30 (which can communicate with 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.

After the release of the possible washing programs, 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. For this purpose, 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.

In addition to those described above and in Fig. 2 As shown components, the cleaning device 10, a device for dispensing cleaning fluid and their associated receiving members for the loosening dirt (cleaning cloth) on.

To explain the interaction of the device 10 with the dryer 5 is in 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. Via 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. For this purpose, 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. Alternatively, a transmission of analog signals or data is conceivable. Instead of data transmission between two or more components of the device 10 via lines and wireless data transmissions (in particular between the device 10 and dryer 5 or the web-fed rotary offset printing machine), for example by means of radio waves, z. B. Blue tooth or by means of optical signals conceivable. Furthermore, it is also conceivable that 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.

For initiating a washing process (see also the flow chart in FIG Fig. 3 ), from the state condition interrogator 15 integrated into the controller 14 in the presently described embodiment, a message (in the described embodiment in the form of a simple signal) that a washing is to be performed via the interfaces 30 and 36 and the data and Control lines 32, 37,40 sent to the dryer control device 38. 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.

In the event that there is no approved by the arithmetic unit 20 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. In the described embodiment, 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.

After the release of at least one washing program by the arithmetic unit 20, a corresponding released washing program is then started. The selection of the wash program can be either automatic or user-controlled.

wobei
M_max - die Gesamtwaschmittelmenge für das komplette Waschprogramm in Gramm,
F_R - der Rückhaltefaktor der Reinigungseinheit,
T - die Waschzeit bzw. Eintragszeit an Waschmittel in s,
R - die Rückhaltemenge der Druckmaschinenzylinder, insbesondere des Gummituchs und der Druckplattenzylinder in Gramm,
V - der Verdampfungsfaktor des Waschmittels bzw. der Reinigungsflüssigkeit und G_max - Grenzwert des Trockners, d. h. der maximal erlaubte Reinigungsflüssigkeits- bzw. Lösemitteldurchsatz zum Trockner beim Gummituchwaschen ist.
G_max ist dabei vom Abluftvolumen des Trockners 5, vom Lüftungsbeiwert desselben, von der unteren Explosionsgrenze der Reinigungsflüssigkeit, sowie vom Querstömungsfaktor und /oder Längsströmungsfaktor des Trockners 5 abhängig.The calculation of the arithmetic unit 20, whether a washing program is allowed or not, taking into account the already explained above parameters. The total detergent quantity and the washing time T for the entire washing program in grams must obey the following relation: $$\left[{\mathrm{M}}_{\mathrm{Max}}\mathrm{\times }\left(\mathrm{1}\mathrm{-}{\mathrm{F}}_{\mathrm{R}}\right)\mathrm{-}\mathrm{R}\right]\mathrm{\times }\mathrm{1}\mathrm{/}\mathrm{T}\mathrm{\times }\mathrm{1}\mathrm{/}\mathrm{V}\le {\mathrm{G}}_{\mathrm{Max}.}$$

in which
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 and 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.

1. 1. Der Bediener wählt die Waschwart (z. B. Anfahrwaschung, Produktionswaschung etc.) und den Papiertyp.
2. 2. Es wird eine Anfrage/ein Signal an den Trockner 5 gesendet, dass gewaschen werden soll.
3. 3. Die Steuerung des Trockners 5 schickt an die Recheneinheit 20 das aktuelle Abluftvolumen und die Trocknertemperatur während Produktion/Druck.
4. 4. Der Programmspeicher 18 beinhaltet Waschprogramme für unterschiedlichste Applikationen (Papieryp, Anzahl Kopien etc.). Über ein spezielles Auswahlverfahren wird das Programm ausgewählt, welches für die aktuelle Applikation am besten geeignet ist. Für das Auswahlverfahren stehen nur Programme bereit, die seitens der Recheneinheit 20 freigeschaltet sind.
   Ist kein Programm für die ausgewählte Waschart im Programmspeicher 18 vorhanden (z. B. alle Programme sind gesperrt), so sendet die Waschanlagensteuerung 14 an den Trockner 5 das notwendige Mindestabluftvolumen, damit die Grenzwerte eingehalten werden können und Waschprogramme für das anschließende Auswahlverfahren zur Verfügung stehen. Anschließend erhöht der Trockner seine Abluft und gibt den aktuellen Wert an die Recheneinheit 20 weiter.
5. 5. Die Recheneinheit 20 wertet alle Waschprogramme im Programmspeicher 18 aus und überprüft, ob diese die max. erlaubten Grenzwerte des Trockners einhalten. Es werden nur Programme freigeschaltet, welche die Grenzwerte einhalten. Alle anderen werden gesperrt und stehen für das anschließende Auswahlverfahren nicht zur Verfügung.

In summary, the sequence of washing can be briefly represented as follows:

1. 1. The operator selects the laundry attendant (eg, start-up wash, production wash, etc.) and paper type.
2. 2. A request / signal is sent to the dryer 5 to be washed.
3. 3. The control of the dryer 5 sends to the arithmetic unit 20, the current exhaust air volume and the dryer temperature during production / pressure.
4. 4. The program memory 18 contains washing programs for a wide variety of applications (paper type, number of copies, etc.). A special selection procedure is used to select the program which is best suited for the current application. For the selection process only programs are ready, which are enabled by the arithmetic unit 20.
   If no program for the selected wash type is present in the program memory 18 (eg all programs are locked), the washer controller 14 sends to the dryer 5 the necessary minimum exhaust volume so that the limit values can be maintained and wash programs are available for the subsequent selection process , Subsequently, the dryer increases its exhaust air and passes the current value to the arithmetic unit 20 on.
5. 5. The arithmetic unit 20 evaluates all the washing programs in the program memory 18 and checks whether this is the max. comply with the permitted limits of the dryer. Only programs that comply with the limit values will be activated. All others will be suspended and will not be available for the subsequent selection process.

As an alternative to the embodiment described above, as already mentioned above, it is conceivable that no washing signal is sent to the drier 5 before the planned start of washing, but the state conditions of the dryer 5 continuously or at predetermined intervals of this without its own request to be sent.

Furthermore, as an alternative to the embodiments described above, instead of the exhaust air volume and the temperature 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. For this purpose, 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.

Furthermore, it is conceivable in a further embodiment that no washing program selection takes place, but that a corresponding washing program is recreated. In this context, it is conceivable that 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.

In a further embodiment, in the event that no wash program can be released, 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).

Finally, it is also conceivable that in the event that no washing program is released, no cleaning is performed.

Although the invention will be described with reference to an embodiment with a fixed combination of features, but it also includes the conceivable further combinations, as they are specified in particular but not exhaustive by the subclaims. All disclosed in the application documents features are claimed as essential to the invention, as far as they are new individually or in combination over the prior art.

Claims (14)

Method for cleaning printing press cylinders (3.1-3.4) of a web-fed rotary printing press, in particular web-fed offset printing machine having at least one printing unit, at least one downstream continuous-flow dryer (5) and at least one cleaning device for cleaning at least one printing press cylinder (3.1-3.4) of the at least one printing unit .
characterized by the following steps (a) receiving notification of the continuous-flow dryer (5) with the current condition conditions of the continuous-flow dryer; (b) selecting or creating a wash program, taking into account the content of the message of step (a), or sending a message to the continuous dryer (5), changing the current state conditions and continuing the process with step (a); (c) starting the washing program. Method according to claim 1,
characterized,
in that step (a) comprises receiving at least one current temperature and a current exhaust air volume of the continuous-flow dryer (5) and / or a limit value (G _max ) which represents a maximum desired detergent input into the continuous-flow dryer (5). Method according to one of the preceding claims,
characterized,
in that before the step (a) a step
(0) sending a message to the continuous dryer (5) stating that a washing process should be initiated,
is performed. Method according to one of the claims 3,
characterized,
in that the transmission of the message in step (0) is performed by a state condition inquiry device (15). Method according to one of the preceding claims,
characterized,
in that the message of the continuous-flow dryer (5) is received by a state-condition receiving device (21) in step (a). Method according to claim 5,
characterized,
in that step (b) has the following substeps: (b-1) releasing appropriate washing programs and / or disabling washing programs in consideration of the content of the message of step (a); (b-2) selecting a released washing program, or if no washing program is released, sending a message to the continuous dryer (5) with the command to change the state conditions. Method according to claim 6,
characterized,
that the release in step (b-1) is fixed within predetermined values for an explosion limit and / or for a Lüftungsbeiwert and / or a cross-flow factor. Method according to one of the preceding claims,
characterized,
that during the execution of the wash program, the current state conditions of the continuous dryer (5) and at least one parameter is received relating to a current applied quantity of cleaning fluid from a second control device (50) and
that the second controller (50) decides based on the received parameter whether the washing program can be continued, or whether an abort signal is sent to the control device (14). Device (10) for carrying out a method for cleaning printing press cylinders (3.1- 3.4) of a web-fed rotary printing press, in particular web-fed rotary offset printing press with at least one printing unit and at least one downstream continuous-flow dryer (5), and at least one cleaning device for cleaning at least one printing press cylinder ( 3.1- 3.4) of the at least one printing unit,
characterized,
in that the device (10) has a condition condition receiving device (21) which is designed such that state conditions can be received by the continuous drier before the execution of a cleaning or washing process. Device (10) according to claim 9,
characterized,
that the device (10) further comprises a status condition sensing apparatus (15). Device (10) according to claim 9 or 10,
characterized,
in that the condition condition inquiry device (15) is integrated in a control device (14) of the device (10). Device (10) according to one of claims 9 to 11,
characterized,
in that the state condition receiving device (21) is integrated in a computing unit (20). Device (10) according to one of claims 9 to 12,
characterized,
in that the condition condition receiving device (21) has a temperature receiving device and / or an exhaust air volume receiving device and / or a limit value receiving device. Device (10) according to one of the preceding claims,
characterized,
in that the device (10) further comprises a second control device (50) which is designed to receive the condition conditions of the continuous-flow dryer (5) and at least one parameter relating to an applied quantity of cleaning liquid and to use these parameters to decide whether a washing process continues or aborted.

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