EP2109577B1 - Machine d'impression pour imprimer des bandes de matériau d'impression, et procédé de réglage et de maintien du registre d'une telle machine d'impression - Google Patents

Machine d'impression pour imprimer des bandes de matériau d'impression, et procédé de réglage et de maintien du registre d'une telle machine d'impression Download PDF

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Publication number
EP2109577B1
EP2109577B1 EP07848099A EP07848099A EP2109577B1 EP 2109577 B1 EP2109577 B1 EP 2109577B1 EP 07848099 A EP07848099 A EP 07848099A EP 07848099 A EP07848099 A EP 07848099A EP 2109577 B1 EP2109577 B1 EP 2109577B1
Authority
EP
European Patent Office
Prior art keywords
web
printing
register
tension
section
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
EP07848099A
Other languages
German (de)
English (en)
Other versions
EP2109577A2 (fr
Inventor
Manfred Loddenkötter
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
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Publication of EP2109577A2 publication Critical patent/EP2109577A2/fr
Application granted granted Critical
Publication of EP2109577B1 publication Critical patent/EP2109577B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4602—Preparing splicing process
    • B65H2301/46022—Preparing splicing process by detecting mark on rotating new roll and/or synchronize roll with trailing web speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B65H2403/725—Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B65H2511/114—Remaining length of web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/51—Diminishing, minimizing or reducing entities relating to handled material
    • B65H2601/511—Waste of handled material

Definitions

  • the invention relates to a printing press for printing substrate webs and a method for adjusting and maintaining the register of such a printing press.
  • this guide roller and optionally the drive which changes the position of the roller, the register actuator.
  • the EP 1 520 696 A1 shows a machine that prints a substrate web in reverse printing. This machine uses both types of register actuators already described.
  • the object of the present invention is to propose a printing machine in which register errors can be compensated faster. If register errors can be corrected more quickly, less waste will result and register deviation will generally become smaller.
  • a nip is the location where the print image is transferred to the substrate. In general, this is done in a nip between a pressure plate and a counter-pressure cylinder. In the most common forms of offset printing, however, the transfer of the printed image takes place in a nip between a blanket cylinder and an impression cylinder. In this case, the printing plate cylinder is upstream of the blanket cylinder. Since a multicolor print image is usually composed of a plurality of monochrome print images, a multicolor print engine contains several color works. In each of these inking units is a printing nip and between the printing nips of the various inking units is a web guide section. To him counts the distance between the printing gaps of the adjacent or successive printing units.
  • such a web guide section is usually simply the distance between the two pressure gaps which the central cylinder covers by turning.
  • a register controller in the sense of the present application comprises all devices which are necessary for register errors or their causes recognize (usually by measurement), to generate control signals from these (measurement) values (usually by calculation, recourse to empirical values, etc.) to transmit these control signals to actuators or their power controller so that they correct the register error or Take countermeasures.
  • register error eg, train orbit or web-cylinder method
  • the physical measuring principle are initially only marginally of interest.
  • a register method according to the invention and thus also a register controller according to the invention
  • the drives of the cylinders transmitting the printed image are generally suitable as register actuators. According to the prior art, these drives are controlled so that changes the phase position of the print image bearing cylinder adjacent inking units to each other.
  • this measure in printing presses of the prior art also has an influence on the web tension in the corresponding web tension section.
  • the change in the web tension in these machines which work with a change in the phase position of the printing cylinder, not just by the fact that the means for influencing the web tension on the printing material within the web guide portion acts (as is the subject of the present invention), but the action is made in the nip by the cylinder transferring the print image.
  • the change in the phase position (as shown below with reference to FIGS is explained) just to a "global" increase in the web tension in the entire web guide portion, that is, between the two adjacent pressure gaps that define the respective web guide portion.
  • the register actuators comprise guide rollers which can be changed in their relative position to the printing nips, adjustment being made with any of the drives, there will also be a "global" increase in web tension in the respective web guiding section. With regard to this type of register actuator, however, it must be acknowledged that the influence is often effected within the web path section concerned.
  • a controllable means for selectively impressing and maintaining a Bruliquesgradienten (.DELTA.F41) in a web guide portion (41,42) of the printing substrate (1) acts, arise two web guide sections with different web tension. If two such means for influencing the web tension act on a web guide section, three such subsections with different web tension arise, if n of such means act on the web in a web guide section, n + 1 of such web guide sections are produced.
  • An advantageous embodiment of the invention should therefore be equipped with at least one controllable means for selectively impressing and maintaining a Bruenciesgradienten in a web guide portion of the printing material, in which the amount (the force or torque) and the duration of the action are regulated or adjustable ,
  • the elongation of the printing material web changes (this also changes the length of the printed images).
  • the thus stretched web section is transported by the normal transport of the printing material through the second printing nip from the affected web guide section addition. Only when this process is completed, the register correction takes effect.
  • a web portion having at least the length of the web guide portion is printed with limited print quality.
  • register actuators comprising guide rollers which can be changed in their relative position to the printing nips, the adjustment being made with any of the drives.
  • register actuators comprising guide rollers which can be changed in their relative position to the printing nips, the adjustment being made with any of the drives.
  • the web tension in a web guide section specifically change so that the measured register error is compensated by the change in web elongation in this section. This is a completely different approach than in the aforementioned methods. It no longer needs a long compensation phase of the web tension, which is printed with limited print quality.
  • the web tension can be such that the web stretch leads to a satisfactory repeat length. This can be achieved by physical compensation or other adjustments.
  • the register controller for carrying out the method according to the invention should also be set up in a different manner than the register controller in conventional methods.
  • it must have the controllable means for selectively impressing and maintaining a web tension gradient in a web guide section of the web Control printing material web and not conventional register actuators.
  • This requires loading of the register controller with corresponding control commands (eg programming) and any kind of signal connection between register controller and the controllable means for the targeted impressing and maintaining a Brunapssgradienten in a web guide section of the printing material ahead.
  • the register controller controls the means in such a way (or as long as it activates) that the further measured values are within a tolerance range. It is advantageous to programmatically set register controllers by means of data carriers (e.g., CD DVD or electronic communication means (e.g., e-mail) such that the inventive methods become executable on the appropriate printing machine.) Media and communication means may also collectively be referred to as electronic data transfer means.
  • the means are maintained the Bruliquesgradienten or the different web elongation. In this case, they should exercise a permanent force on the web.
  • controllable means for the targeted impressing and maintaining a web tension gradient in a web guide section of the printing material web must - at least temporarily - have mechanical contact with the printing material web within the relevant web guide section in order to influence the web tension there.
  • An advantageous embodiment of such a controllable means for selectively impressing and maintaining a web tension gradient in a web guide portion of Substrate web comprises a roller which can be acted upon in any way with a torque.
  • torque is meant here both a braking “negative” torque which brakes the web and which occurs when the roll or its axis is brought into operative connection with a brake in any way.
  • a "positive" driving torque can be imparted to the guide roll by a drive such as an electric machine.
  • Such an embodiment with an electric machine has the advantage that it can usually produce both positive and negative torques.
  • the simplest embodiment of such a controllable means for selectively impressing and maintaining a Bruêtsgradienten in a web guide portion of the printing substrate is a guide roller, which is acted upon by a brake or a motor for example with torque.
  • the type of loading is controlled by the register controller.
  • the name torque-loaded guide roll offers itself.
  • Controllable means for selectively impressing and maintaining a web tension gradient in a web guide section of the printing substrate web may also comprise surfaces which are brought into frictional contact with the printing substrate web.
  • the objects that contain these surfaces again with actuators such as linear motors with targeted controllable force against the track should be able to be employed. This can be done by placing an object, such as a beam or bar, against the track of the track. But you can also provide two or more bars that cooperate like a pair of pliers. However, great care must be taken in these procedures to avoid surface damage.
  • the force which is imparted to the web and brings about the different web tension in the two web guide sections is advantageously kept constant if the measured values which the register controller receives have a desired register quality (within a desired range).
  • the register actuators should therefore have the possibility of keeping the tension and thus the web elongation constant in at least one web guide section. This will usually happen just by the entry of a constant force on the web during this period.
  • the register controller receives measured values indicating a change in the register (or, for example, in the case of monitoring the web tension, or suspecting it), it will control the means for impressing and maintaining the web tension gradient such that it gives the web a different path Impart power.
  • the web tension is taken into account as a measured and controlled variable in the register control.
  • measuring rollers in which the force exerted by the web on the axle is measured. As a rule, the measurement takes place on the roll axis. If one now measures the web tension fluctuations-preferably in a long first web guide section-many of the machines are already able to achieve satisfactory register qualities on the basis of these measurement results, if one regulates according to a web tension setpoint.
  • a measuring element is able to quantitatively detect the influence of all these disturbance variables on the web tension in this first large web guide section. Based on these measured values, the means for selectively influencing the web tension can be controlled in such a way that it corrects the influence of all these disturbance variables acting on the first web guide subsection on the web tension.
  • a register controller which only receives measured values of web tension as measured values, is also a register controller in the sense of this application.
  • the web guide subsection concerned can be divided into n + 1 web guide section sections with different web tension.
  • the last means for selectively influencing the web tension in the rule will be assigned the "main register work”.
  • the parts that apply force or torque are already multiple described controllable means for selectively impressing and maintaining a Brutudesgradienten in a web guide portion of the printing substrate, which act on the printing material within the at least one web guide portion (ie between the printing gaps), wherein the tension of the printing substrate in this web guide section can be influenced.
  • the actuators are precisely the cylinders carrying the print image in operative connection with their drives.
  • a combination of methods using different register actuators is also advantageous.
  • a combination of the inventive method with a controllable means for selectively impressing and maintaining a web tension gradient in a web guide portion of the printing substrate as a register actuator with a method with a cylinder bearing the print image as a register actuator is particularly advantageous if you want to register large amounts. This is the case, for example, during pre-registration.
  • a method with an adjustable in position roll guide could be advantageously combined with the inventive method.
  • Particularly favorable conditions of use for the method according to the invention can be found in the longitudinal register of machines that print packaging material. Due to the longer web guide sections are here mainly stand machines, ie machines in which a cylinder which transmits the printed image on the printing material, a counter-pressure cylinder is assigned to call. Due to the role that the web elongation plays in the process according to the invention, the printing of plastic webs is a preferred field of application. So z. B. in packaging printing materials such as PE, PET, etc. printed. Among the printing methods used in this field are offset, gravure and flexo printing. The operation of packaging gravure printing machines with a method according to the invention is considered to be particularly advantageous.
  • Fig. 1 shows the course of a printing substrate 1 in a gravure printing machine 100 in a schematic outline diagram. Shown are a total of three printing units 10, 20, 30, between which web guide sections 41, 42 are formed. Before the first printing unit 10 is a web feed section 40th
  • the printing material web 1 is fed and fed to a first printing unit 10, where the printing material is pressed on a form cylinder 12 to a impression roller 11. From there, the transition to the downstream with respect to the conveying direction of the printing material located printing units 20, 30 with form cylinders 22, 32 and impression rollers 21, 31.
  • In addition to mere deflection rollers are for guiding the printing material web in each web guide portion 41, 42nd Guiding rollers 13, 23, 24, 33, 34 are provided, on which the respective web tension is measured.
  • the torque-loaded 25, 35 guide rollers and their torque actuators 51, 52 thus play the role of controllable means for impressing a web tension gradient.
  • a first web guide portion 41 a is formed; between the auxiliary guide roller 25 and the printing nip of the second printing unit 20, a second web guide portion 41 b.
  • Fig. 2 shows the stationary course of the web tension acting on the substrate web at different positions of the gravure printing machine.
  • a web tension F41a is measured in the first web guide portion 41a, and at the circumference of the second guide roller 24 a force which by definition corresponds to a web tension F41b in the second web guide portion.
  • the resulting strains as shown by the dot-dash line in the lower part, are proportional to the web tension and inversely proportional to the moduli of elasticity.
  • the self-adjusting web tension is stationary.
  • a braking torque on the auxiliary guide roller 25, 35 reduces the stationary web tension in front of it; a drive torque increases the web tension here.
  • FIG. 3 of the web guide portion 41 shown schematically a force diagram is shown, with respect to an incremental web location at the point where the printing material 1 runs from the torque-charged auxiliary guide roller 25, cut free in the balance of the forces acting.
  • the web tension F41a which is established in the web guide portion 41a, results from the difference of the self-adjusting force F41b in the web guide portion 41 b and the resulting from the moment of the auxiliary guide roller 25 circumferential force F25.
  • a register measuring device 50 which determines a possible register deviation on the printing material, for example, via a digital camera and image-recognizing method. Due to the angular amount ⁇ at the cylinder 22 carrying the print image, it is indicated that register control can also be achieved by shifting the phase position of the two forme cylinders 12 and 22 relative to one another. In state-of-the-art machines, such an approach is preferred. With regard to the present invention, this type of registration is reflected, inter alia, in one embodiment FIG. 5 second hand.
  • FIG. 4 showed a first simple control loop 200, which is the in FIG. 3 represents illustrated web guide section.
  • Starting point of the considerations in FIG. 4 is the force or web tension FE, which lies in front of the first printing unit of the web guide section 41.
  • the transfer member 201 is indicated that the web tension F41 b in the stationary case of the aforementioned web tension FE and the ratio of the elastic moduli E41 / E40 of Web guide sections 40 and 41 results.
  • differences between the moduli of elasticity can mainly be caused by temperature differences.
  • the elongation of the web in the inlet of the two pressure gaps has to be the same or sets at identical circumferential speed of the forme cylinder 12 and 22 equal.
  • the transmission elements 206 and 207 and the addition point downstream of them indicate that the register between the forme cylinders 12 and 22 adjusts as a function of the track strains ⁇ 41b and ⁇ 41a and thus leads to the register actual value dRist.
  • the web tension F41a is equal to the F41 b, when the torque-loaded guide roller 25 just runs smoothly.
  • the register deviation is measured by a register measuring device 50, compared with a desired value dRsetpoint and fed to a register controller 202.
  • Register regulator 202 applies a moment to the brake which applies force F25 to the web at the circumference of the roll.
  • the amount of this force is proportional to the register error, which is also indicated by the transfer member 202.
  • the transmission member 205 illustrates the dependence of the web tension F41 a on the force F25 and the web tension F41b described above.
  • the transmission elements 203 and 204 illustrate the temporal effects of a change of the force F25 on the web tension F41 a and F41b.
  • FIG. 5 a slightly more complex control loop is displayed. Again, the formation of the web tension F41 b is illustrated by means of the transfer element 301. Likewise, again with the transfer elements 306 and 307 and the subsequent addition term the influence on the register is illustrated. However, this time the measured registration error does not directly produce a momentary impact on the roller 25, but rather a phase adjustment of the forme cylinder 22, which generates an extension ⁇ r in the web guide section 41b. The strain ⁇ r changes the web tension F41b. The web tension F41 a results from an inner Web tension control loop from web tension F41b.
  • delta F is the amount by which F41a is set lower than F41b, so that disturbances of the web tension in the positive and negative directions can be compensated by increasing or decreasing the braking torque.
  • F41a is connected to the measuring roller 23 (FIG. FIG. 3 ), the measured value is fed back to a comparison point 323 and regulated via the transmission element 321.
  • the delay element 322 causes the web tension F41 a to remain constant during a brief change in the web tension F41 b.
  • the register actuator is formed here by the torque-loaded guide roller 25 and its torque plate 51.
  • the inner loop and this pair 25, 51 are at the in FIG. 5 illustrated embodiment initially only corrects the web fluctuations.
  • the compensation but still occurring register error which can manifest themselves on the substrate or by the position of the printing material against a plate cylinder 12, 22 are then made again by a phase adjustment of the angular position of the forme cylinder (Here, the forme cylinder 12, 22 and their not drives shown the register actuators).
  • optical measuring methods can be used very advantageously.
  • FIG. 6 FIG. 11 is a graph showing the course of web tension F A in a web guide portion of a prior art machine.
  • the machine is registered by making a printing image bearing roller, which closes the web guide portion in the web running direction, a phase shift.
  • the FIG. 7 shows the history of the associated register at the same points in time.
  • the phase shift of the second pressure roller in the web running direction is performed in order to compensate for the register difference ⁇ R between the register actual value R 1 and the register setpoint value R 2 .
  • This phase shift is comparatively extremely fast. Therefore, the web tension, represented by the graph G F, steeply increases. However, the decrease of the web tension to the initial value F 1 and the setting of the register to the target value R 2 continues during the periods T 2 and T 3 .
  • the adaptation process does not run linearly as indicated by the lines L F and L R , but exponentially in the form of a decay function. During these periods a transient balancing process takes place in which printing is done with inferior quality.
  • the entire web section stretched by the phase shift of the printing cylinder must first have passed the second printing nip in the web running direction before stationary states again occur at time T3 and the register change becomes effective.
  • the duration of this compensation process is proportional to the length of the web guide section and anti-proportional to the printing speed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Claims (17)

  1. Machine d'impression pour imprimer des bandes de matériau d'impression, qui présente les caractéristiques suivantes :
    - au moins deux dispositifs d'encrage (10, 20, 30) qui présentent chacun une fente d'impression (45, 46, 47), dans laquelle l'image d'impression est transférée sur le matériau d'impression (1),
    - au moins une portion de guidage de bande (41, 42), qui comprend la section de bande entre les au moins deux fentes d'impression (45, 46, 47),
    - au moins un dispositif de réglage du registre (50), qui ajuste la capacité de maintien du registre de l'impression avant et/ou pendant le fonctionnement d'impression,
    caractérisée par
    - au moins un moyen commandable (25, 35, 51, 52) pour le marquage ciblé et le maintien d'un gradient de tension de la bande (ΔF41) dans une portion de guidage de la bande (41, 42) de la bande de matériau d'impression (1),
    - lequel (25, 35, 51, 52) agit sur la bande de matériau d'impression (1) à l'intérieur de l'au moins une portion de guidage de la bande (41, 42),
    - et par le biais duquel (25, 35, 51, 52) la portion de guidage de la bande concernée (41, 42) peut être divisée en portions de guidage de la bande partielles (41a,b ; 42a,b) ayant une tension de la bande différente (F41a, F41b),
    le dispositif de réglage du registre étant prévu de telle sorte qu'il commande l'au moins un moyen commandable (25, 35, 51, 52) pour le marquage ciblé et le maintien d'un gradient de tension la de bande (ΔF41).
  2. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le moyen commandable (25, 35, 51, 52) pour le marquage ciblé et le maintien d'un gradient de tension de la bande (ΔF41) dans une portion de guidage de bande (41, 42) de la bande de matériau d'impression (1) comprend au moins un rouleau (25, 35) qui peut être sollicité avec un couple (de freinage) négatif ou un couple (d'entraînement) positif.
  3. Machine d'impression selon la revendication précédente,
    caractérisée en ce
    qu'au moins l'un des moyens suivants (51, 52) pour solliciter le rouleau avec un couple est en liaison fonctionnelle avec le rouleau :
    - un frein mécanique ou électrique,
    - un frein à courants de Foucault,
    - un frein à hystérésis,
    - un frein à poudre magnétique,
    - un entraînement, de préférence par un moteur électrique.
  4. Machine d'impression selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le moyen commandable (25, 35, 51, 52) pour le marquage ciblé et le maintien d'un gradient de tension de la bande (ΔF41) dans une portion de guidage de bande (41, 42) de la bande de matériau d'impression (1) présente au moins une surface qui peut être amenée en liaison par friction avec la bande de matériau d'impression (1) au moyen d'un actionneur commandable de manière à faire varier la tension de la bande (F41a, F41b).
  5. Machine d'impression selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la portion de guidage de bande partielle (41a ; 42a) d'une portion de guidage de bande (41, 42), qui est montée dans la direction d'avance de la bande (z) avant le lieu où le moyen commandable (25, 35, 51, 52) agit pour le marquage ciblé et le maintien d'un gradient de tension de la bande (ΔF41) dans une portion de guidage de bande (41, 42) de la bande de matériau d'impression (1), est plus longue que la portion de guidage de bande partielle (41b ; 42b) de la même portion de guidage de bande (41, 42) qui suit dans la direction d'avance de la bande (z) le lieu où le moyen commandable (25, 35, 51, 52) agit pour le marquage ciblé et le maintien d'un gradient de tension de la bande (ΔF41) dans une portion de guidage de bande (41, 42) de la bande de matériau d'impression (1).
  6. Machine d'impression selon la revendication précédente,
    caractérisée en ce que
    le rapport de longueur de la deuxième portion de guidage de bande partielle (41b, 42b) à la première portion de guidage de bande partielle (41a, 42a) d'une portion de guidage de bande (41, 42) est au plus de 0,75, de préférence toutefois de 0,5, encore plus avantageusement de 0,2 ou même de 0,1.
  7. Machine d'impression selon l'une quelconque des revendications précédentes,
    caractérisée par
    au moins un moyen (13, 23, 24, 33, 34) pour mesurer la tension de la bande.
  8. Machine d'impression selon la revendication précédente,
    caractérisée par
    au moins un moyen (13, 23, 24, 33, 34) pour mesurer la tension de la bande, lequel est positionné de manière à ce que la tension de la bande (F41a, F41b) puisse être mesurée à l'aide de celui-ci (13, 23, 24, 33, 34) dans une portion de guidage de bande partielle (41a, 41b, 42a, 42b).
  9. Machine d'impression selon les deux revendications précédentes,
    caractérisée par
    une liaison par signal (60) entre l'au moins un dispositif de réglage du registre (50) et au moins un moyen (13, 23, 24, 33, 34) pour mesurer la tension de la bande.
  10. Machine d'impression selon l'une quelconque des deux revendications précédentes,
    caractérisée en ce que
    le dispositif de réglage de registre (50) comprend une unité de commande qui génère et envoie des signaux de commande qui sont transmis à l'au moins un moyen commandable (25, 35, 51, 52) pour influencer de manière ciblée la tension de la bande de matériau d'impression et qui commandent celui-ci.
  11. Procédé pour ajuster et maintenir la qualité du registre d'une machine d'impression, présentant les caractéristiques suivantes :
    - au moins deux dispositifs d'encrage (10, 20, 30) qui présentent chacun une fente d'impression (45, 46, 47), dans laquelle l'image d'impression est transférée sur le matériau d'impression (1),
    - au moins une portion de guidage de bande (41, 42), qui comprend la section de bande entre les au moins deux fentes d'impression (45, 46, 47),
    - au moins un dispositif de réglage du registre (50), qui ajuste la capacité de maintien du registre de l'impression avant et/ou pendant le fonctionnement d'impression,
    le procédé étant caractérisé en ce que le dispositif de réglage du registre (50) fournit des signaux de commande et/ou de réglage sur la base desquels la tension de la bande (F41a, F41b) est influencée à l'intérieur d'une portion de guidage de bande (41, 42) de telle sorte qu'à partir de l'une des portions de guidage de bande (41, 42), au moins deux portions de guidage de bande partielles (41a, 41b, 42a, 42b) de tension de bande différente (F41a, F41b) soient créées.
  12. Procédé selon la revendication précédente,
    caractérisé en ce que
    le dispositif de réglage (50) génère les signaux de commande et/ou de réglage sur la base au moins en partie des valeurs de tension de la bande (F41a, F41b).
  13. Procédé selon la revendication précédente,
    caractérisé en ce que
    le dispositif de réglage du registre (50) génère les signaux de commande et/ou de réglage sur la base au moins en partie d'erreurs de registre s'étant produites.
  14. Procédé selon les deux revendications précédentes,
    caractérisé en ce que
    le réglage en fonction de la tension de la bande (F41a, F41b) précède le réglage en fonction des erreurs de registre.
  15. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la tension de la bande (F41a, F41b) dans une portion de guidage de bande est influencée en différents endroits de telle sorte qu'à partir de l'une des portions de guidage de bande (41, 42), au moins trois, mais de préférence quatre ou plus de quatre portions de guidage de bande partielles (41a, 41b, 42a, 42b) de tension de bande différente (F41a, F41b) soient créées.
  16. Procédé selon la revendication précédente,
    caractérisé en ce que
    le dispositif de réglage du registre (50) fournit des signaux de commande et/ou de réglage qui ont une influence sur la tension de la bande (F41a, F41b) de la ou des portions de guidage de bande partielles arrière (41b, 42b).
  17. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    avant ou pendant l'impression, des signaux de commande et/ou de réglage sont fournis, sur la base desquels les positions de phase (ϕ) des cylindres (12, 22) portant l'image d'impression des au moins deux dispositifs d'encrage (10, 20, 30) sont modifiées l'une par rapport à l'autre.
EP07848099A 2006-12-18 2007-12-14 Machine d'impression pour imprimer des bandes de matériau d'impression, et procédé de réglage et de maintien du registre d'une telle machine d'impression Not-in-force EP2109577B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006060212A DE102006060212B4 (de) 2006-12-18 2006-12-18 Druckmaschine zum Bedrucken von Bedruckstoffbahnen sowie Verfahren zur Einstellung und Aufrechterhaltung des Registers einer solchen Druckmaschine
PCT/EP2007/063938 WO2008074732A2 (fr) 2006-12-18 2007-12-14 Machine d'impression pour imprimer des bandes de matériau d'impression, et procédé de réglage et de maintien du registre d'une telle machine d'impression

Publications (2)

Publication Number Publication Date
EP2109577A2 EP2109577A2 (fr) 2009-10-21
EP2109577B1 true EP2109577B1 (fr) 2013-02-20

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EP07848099A Not-in-force EP2109577B1 (fr) 2006-12-18 2007-12-14 Machine d'impression pour imprimer des bandes de matériau d'impression, et procédé de réglage et de maintien du registre d'une telle machine d'impression

Country Status (3)

Country Link
EP (1) EP2109577B1 (fr)
DE (1) DE102006060212B4 (fr)
WO (1) WO2008074732A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392459B1 (fr) 2010-06-02 2015-09-02 Müller Martini Holding AG Procédé et dispositif de réglage du registre d'une presse d' impression

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119398C2 (de) * 1981-05-15 1984-05-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zur Einstellung der Länge einer zu bedruckenden Bahn in einer Rollenrotationsdruckmaschine
DE3590509C2 (fr) * 1984-10-12 1991-01-10 Mitsubishi Jukogyo K.K., Tokio/Tokyo, Jp
DE4218760C2 (de) 1992-06-06 2000-02-03 Heidelberger Druckmasch Ag Anordnung von Registermarken auf einem Druckprodukt und Verfahren zur Ermittlung von Registerabweichungen
DE4301272A1 (de) * 1993-01-19 1994-07-21 Eltromat Ges Fuer Ind Elektron Vorrichtung zur Bestimmung des Registerfehlers zwischen den einzelnen Farben beim Mehrfarbendruck in einer Langbahn-Rollenrotationsdruckmaschine
DE29721637U1 (de) * 1997-11-25 1998-02-05 Thomas & Betts Corp Gerät zum Lesen von Chipkarten
WO2000034042A1 (fr) * 1998-12-04 2000-06-15 Koenig & Bauer Aktiengesellschaft Procede de regulation d'un registre
DE19917773A1 (de) 1999-04-20 1999-11-04 Roland Pudimat Kontrollelement zum Bestimmen von Passerabweichungen eines auf einem Bedruckstoff aus mehreren Teilfarben bestehenden Druckbildes
DE10058841B4 (de) * 2000-11-27 2009-07-30 Koenig & Bauer Aktiengesellschaft Verfahren zur Regelung eines Umfangsregisters
US6684776B2 (en) * 2001-02-23 2004-02-03 Heidelberger Druckmaschinen Ag Method and apparatus for determining slipping in a nip roller
DE10254836A1 (de) 2002-11-22 2004-06-17 Windmöller & Hölscher Kg Verfahren und Vorrichtung zur Regelung des Registers einer Druckmaschine
DE10335885A1 (de) * 2003-08-06 2005-03-17 Man Roland Druckmaschinen Ag Verfahren und Vorrichtung zur Regelung der Bahnzugkräfte und der Schnittregisterfehler einer Rollenrotationsdruckmaschine
JP2005111692A (ja) 2003-10-03 2005-04-28 Tokyo Kikai Seisakusho Ltd 紙継ぎに伴う個別の印刷ユニット間の印刷ずれ解消装置を備えた輪転機

Also Published As

Publication number Publication date
WO2008074732A2 (fr) 2008-06-26
DE102006060212A1 (de) 2008-07-03
WO2008074732A3 (fr) 2009-06-04
WO2008074732A9 (fr) 2009-07-16
DE102006060212B4 (de) 2013-07-11
EP2109577A2 (fr) 2009-10-21

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