EP1593502A1 - Method and apparatus for the initial control of the adjustement of gravure cylinders of a rotary multicolor printing press - Google Patents
Method and apparatus for the initial control of the adjustement of gravure cylinders of a rotary multicolor printing press Download PDFInfo
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- EP1593502A1 EP1593502A1 EP04405282A EP04405282A EP1593502A1 EP 1593502 A1 EP1593502 A1 EP 1593502A1 EP 04405282 A EP04405282 A EP 04405282A EP 04405282 A EP04405282 A EP 04405282A EP 1593502 A1 EP1593502 A1 EP 1593502A1
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- engraved
- cylinders
- angular
- cylinder
- printing
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- 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
- B41F13/025—Registering devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/13—Pre-registering
Definitions
- the present invention relates to a method of initial setting of the peripheral coincidence of the cylinders engraved successive printing groups of a press full-color rotary printing according to a job determined, these cylinders being connected to the same drive shaft through respective clutches, according to which has an angular mark on each cylinder and aligns this mark with a fixed point with respect to engraved pattern on the cylinder one measures and memorizes these positions angular with respect to a zero point.
- This invention also relates to a device for the implementation of this process.
- the object of the present invention is to remedy the less in part, to the aforementioned drawbacks.
- the present invention is first of all for object a process of initial adjustment of peripheral coincidence engraved cylinders of successive printing units of a full-color rotary printing press in function of a particular work according to claim 1.
- the process according to the present invention it suffices to get into the press control programmer at print, the characteristics of the work to be done. Based on these features, double-sided work, number and choice of colors, so choice of cylinders in work, type of drying, in particular, the trajectory the tape to be printed is defined. So the lengths of band between the cylinders are known, which allows know the relative angular positions of the cylinders, which correspond to the rest of the division of these lengths by the format (peripheral length) of the cylinder. Usually all engraved cylinders have the same format.
- the adjustment time initial for a job performed for the first time on the printing press, of all the cylinders that can for example, ten cylinders do not exceed 1 minute without any tape loss.
- the single figure of the appended drawing illustrates, schematically and by way of example, a mode of implementation of initial setting procedure for peripheral coincidence engraved cylinders of successive printing units a full-color rotary printing press of a determined work.
- a full color printing machine in rotogravure has a print line that consists of several engraved cylinders each of which print a different color on a strip of paper or cardboard unwind in the machine. At the moment each cylinder deposits the ink on the support, its color must be perfectly register with others. Otherwise, the different colors of the printed pattern are staggered.
- the maximum acceptable error for the registry between colors is 0.1 mm when the machine is in production, for the initial setting of cylinders, object of this invention, an accuracy of ⁇ 5 mm is acceptable since the tracking system can correct this error through a compensator that changes the tape length between two printing points.
- the principle of initial adjustment according to the invention is based on the automatic location of a point on the cylinders engraved which must be fixed in relation to the printed frame on the format. Once the position of this point is spotted on each cylinder, the automation sequence calculates the displacement to be made on each cylinder in order to bring it into phase with a reference cylinder that corresponds to the cylinder which prints the first color, this displacement depends of the tape path between the engraved cylinders which depends on the configuration given to the machine for a given job.
- each engraved cylinder C1..Cn carries a cam AC aligned at a fixed angular position corresponding to that of a CR registration mark printed on each cylinder engraved C1..Cn.
- the angular position of this cam and so that of the cross mark CR is detected by a inductive sensor S connected to the same bus coupler BC as the pneumatic clamp CL.
- An incremental encoder G is associated with one of the trees drive C1..Cn engraved cylinders. This is a counter at 4096 pulses / revolution, making one turn per revolution engraved cylinder C1..Cn. Since all trees drive engraved cylinders are constantly rotating and at the same speed, a single coder makes it possible to know the angular positions of all the engraved cylinders C1..Cn.
- Each engraved cylinder prints a registration mark, this is designated RM for the first color that is the reference color printed by the first cylinder engraved C1 and which is designated CM for the engraved cylinder C2.
- RM, CM marks are read by RC photocells arranged so that their reading point is at a determined distance PR from the printing point on the cylinder engraved C1..Cn.
- the tape distance between the print dots respectively N and R of the engraved cylinder Cn and C1 reference cylinder corresponds to d (N-R).
- LY indicates the distance on the engraved cylinder, between the cross mark CR of each cylinder and the mark of reference RM, CM printed on the tape.
- the machine comprises for its control a human-machine interface HMI, which can take the form of a touch screen control unit, connected to the MCS programmable electronics and REG register control electronics.
- HMI human-machine interface
- the REG system uses the incremental encoder G and RC photocells for reading the RM marking marks, CM printed on the print tape.
- electronics programmable MCS and the registry control electronics REG use the information given by the incremental encoder BOY WUT.
- the main drive motor M of the machine is associated with a frequency converter D which receives a CTR command signal from the programmable electronics MCS for machine control. This drive frequency is used to control the main motor M in position during the initial calibration process of the engraved cylinders C1..Cn.
- a GM engine encoder also connected to electronics MCS command allows vector control, which serves to enslave the motor in speed and position.
- the inking carriage (not shown) is inserted into the machine without worrying about the lateral position or the angular position of cylinders C1..Cn.
- the work information helps to define the passage of the tape to print in the machine. They must be introduced even on printing groups of cylinders C1..Cn which are not selected and which between two selected groups. All those informations are entered using the keypad constituting the human-machine HMI interface.
- CL clamps for cylinder printing units C1..Cn selected are closed, so these cylinders are kinematically integral with the drive shaft MS, therefore the motor M.
- the closing operation of the clamps simultaneously performs the lateral positioning of the cylinders.
- the lateral positioning of the cylinder allows to bring the support of the CA cam in front of the inductive sensor S. Therefore, once the cylinder goes into rotation, the angular position of the cam CA can be detected by the S sensor.
- Lateral positioning is made using the ML engine.
- this engine is brushless type Eex-d, controlled in position by electronics programmed programmable MCS control of the machine. When the machine is in production this engine Ml is used for the control of the lateral register.
- the initial angular wedging operation of the cylinders engraved C1..Cn to adjust the peripheral coincidence of engraved cylinders of successive printing groups can then start using a central command located at near the HMI interface.
- Auto sequence starts with slow rotation from the motor to the index of the incremental encoder G which is effect of zeroing the electronic counting register located in the MCS control electronics.
- the incremental encoder G follows the angular position of the main axis in downstream of reduction gears Z1 / Z2.
- the electronic register counter is reset with the index signal (Z, / Z) after at most one revolution of cylinders C1..Cn.
- the encoder incremental G rotates as long as the drive shaft MS is driven by the main motor M, regardless of the fact that an engraved cylinder C1..Cn is in use or not in the printer group where he is mounted.
- the electronics programmable MCS launches a calculation that determines the phase shift to be given to each engraved cylinder C1..Cn for the register with the C1 reference cylinder that prints the first color.
- the calculation of successive phase shifts is based on band lengths between groups printers and on the printed format, that is to say on the peripheral length of the engraved cylinders. The lengths are calculated according to the choices that the operator made using the HMI interface keyboard.
- the result of this calculation is a list of OL values expressed in degrees.
- the programmable electronics MCS orders the list OL in the growing sense.
- Programmable electronics MCS turns the motor main M to bring the first engraved cylinder C1..Cn of the list OL in the desired angular position. Once position reached, the motor M stops and the clamp CL engraved cylinder C1..Cn is open, as shown for the C2 cylinder. As a result, the cylinder C2 is uncoupled from the transmission shaft MS.
- the tuning process continues by positioning all the other engraved cylinders C1..Cn in the order of phase shifts according to OL list established and using the same procedure as that used for the first cylinder engraved C2.
- the advantage of this procedure is that the cylinders engraved C1..Cn which have a larger angular displacement to benefit from the angular movements of engraved cylinders that preceded them in the OL list.
- This procedure allows to position all the engraved cylinders C1..Cn in one turn of the encoder G (3 turns main motor). This sequence requires at most a run time of 1 min for a printing line with 10 printing units selected.
- programmable electronics MCS determines the final position of engraved cylinders C1..Cn compared to the G encoder index, this function allows you to know the position of the CR identification cross of each engraved cylinder C1..Cn with respect to the index of the encoder G.
- Information on the CR position for each cylinder engraved C1..Cn are sent to the control system REG register with distance information PR in mm between the printing point of an engraved cylinder given C1..Cn and the reading point of the tracking cell RC associated with this engraved cylinder.
- the REG register control system uses both aforementioned information relating to the position of the reference CR of each cylinder C1..Cn and at the distance PR between the printing point and reading point, in combination with knowledge of the distance LY between the mark of CM printed marking with respect to CR markings of cylinders engraved C1..Cn.
- This distance LY is introduced by the operator when setting up a job.
- these three pieces of information are needed and sufficient to adjust the opening of a window reading of the REG register control system at the time the passage of the RM, CM marks on the printed format in the field of view of connected RC photocells REG register control system.
- the calculations of these parameters including sending to the control system of REG register through the BUS2 request a global time less than 2 sec.
- the machine can be started, the colors will be in phase and the control system of REG register is synchronized to read the marks of RM, CM in the window set on the passage of these marks in the field of view of reading photocells RC.
- the cut can be wedged in relation to the impression of the printing machine.
- the registration of the cutting module will be obtained by the control system REG register of the printing machine thanks to a digital oscilloscope.
- the method according to the present invention thus allows a initial setting of a full color printing machine so completely automatic and without tape consumption.
- the total duration of the implementation of this operation setting does not exceed 2 minutes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
Description
La présente invention se rapporte à un procédé de réglage initial de la coïncidence périphérique des cylindres gravés des groupes d'impression successifs d'une presse d'impression rotative polychrome en fonction d'un travail déterminé, ces cylindres étant reliés à un même arbre d'entraínement par l'intermédiaire d'embrayages respectifs, selon lequel on dispose un repère angulaire sur chaque cylindre et aligne ce repère avec un point fixe par rapport au motif gravé sur le cylindre on mesure et mémorise ces positions angulaire par rapport à un point zéro. Cette invention se rapporte également à un dispositif pour la mise en oeuvre de ce procédé.The present invention relates to a method of initial setting of the peripheral coincidence of the cylinders engraved successive printing groups of a press full-color rotary printing according to a job determined, these cylinders being connected to the same drive shaft through respective clutches, according to which has an angular mark on each cylinder and aligns this mark with a fixed point with respect to engraved pattern on the cylinder one measures and memorizes these positions angular with respect to a zero point. This invention also relates to a device for the implementation of this process.
Lors de l'impression à l'aide de plusieurs cylindres gravés pour l'impression en couleur, il est nécessaire que les différents cylindres soient disposés dans des positions angulaires déterminées avec précision les uns par rapport aux autres. Cette position est fonction de la longueur de bande entre les différents groupes imprimeurs et du format des cylindres gravés, c'est-à-dire de leur longueur périphérique. Si l'on considère le point zéro de l'impression de chaque cylindre gravé, il y a lieu de déterminer sa position par rapport à la position zéro des autres cylindres gravés, en fonction de la longueur de bande séparant deux groupes d'impression successifs et de la longueur périphérique des cylindres gravés, pour que les impressions successives des différentes couleurs sur la bande imprimée coïncident parfaitement.When printing with multiple cylinders engraved for color printing, it is necessary that the different cylinders are arranged in positions angularly determined precisely with respect to to others. This position is a function of the length of band between different printing groups and format engraved cylinders, that is to say their peripheral length. If we consider the zero point of the impression of each cylinder engraved, it is necessary to determine its position relative to the zero position of the other engraved cylinders, depending on the length of the band separating two groups successive printing and the peripheral length of engraved cylinders, so that the successive impressions of different colors on the printed tape coincide perfectly.
On a déjà proposé dans le DE 44 41 246 un dispositif de réglage destiné à faire coïncider les positions respectives des différents cylindres gravés d'une telle presse, dans lequel deux segments de l'arbre d'entraínement entre deux cylindres gravés sont reliés par un accouplement muni d'un mécanisme de réglage à vis sans fin susceptible de modifier les positions angulaires respectives des deux segments de l'arbre d'entraínement et par conséquent celles des deux cylindres gravés reliés à ces segments respectifs.It has already been proposed in DE 44 41 246 a device for adjustment intended to make the respective positions coincide different engraved cylinders of such a press, in which two segments of the drive shaft between two engraved cylinders are connected by a coupling provided with a worm gear adjustment mechanism capable of modifying the respective angular positions of the two segments of the drive shaft and therefore those of the two engraved cylinders connected to these respective segments.
On a aussi proposé dans le US 3'963'902 un procédé et un dispositif de remise en place des cylindres d'impression d'une presse rotative polychrome entraínés par une ligne de transmission commune, dans des positions de repérage angulaire connues pour un type de travail qui revient périodiquement. Une fois que le réglage initial de la presse d'impression a été effectué par les techniques conventionnelles connues, c'est-à-dire un réglage manuel effectué en contrôlant visuellement la concordance des couleurs sur la bande de papier ou de carton imprimée, on relève à l'aide d'un dispositif d'indexage angulaire les positions respectives des différents cylindres et on les conserve en mémoire. Lorsque le même travail est à exécuter, on replace les cylindres dans une position de référence angulaire. Ensuite on amène chaque cylindre dans la position angulaire d'indexage à l'aide d'un dispositif différentiel entraíné par un moteur qui tourne jusqu'à ce que la position angulaire du cylindre coïncide avec la position indexée. Cette opération est effectuée pour chaque cylindre. Ce réglage peut être réalisé sans la présence d'une bande d'impression dans la machine ce qui permet d'éviter des pertes de papier ou de carton.It has also been proposed in US 3,963,902 a method and a device for restoring the printing cylinders of a polychrome rotary press driven by a line of common transmission, in angular registration positions known for a type of work that periodically returns. Once the initial setting of the printing press was done by conventional techniques known, that is to say a manual adjustment performed by controlling visually the color concordance on the tape of paper or printed cardboard, it is noted with the help of a angular indexing device the respective positions different cylinders and stored in memory. When the same work is to be done, the cylinders are replaced in an angular reference position. Then we brings each cylinder into the angular indexing position using a differential device driven by an engine which rotates until the angular position of the cylinder coincides with the indexed position. This operation is performed for each cylinder. This setting can be made without the presence of a print tape in the machine this which avoids losses of paper or cardboard.
Il n'en demeure pas moins que ce procédé nécessite de faire un réglage initial conventionnel pour chaque nouveau travail et que ce réglage prend beaucoup de temps et utilise beaucoup de bande de papier ou de carton et en plus la reprise d'un travail implique le positionnement semi-automatique fait par l'opérateur et qui demande un certain temps de réglage sur la machine.Nevertheless, this process requires make a conventional initial adjustment for each new this setting is time consuming and uses a lot of paper tape or cardboard and in addition the resuming work involves semi-automatic positioning done by the operator and that takes a while setting on the machine.
Un procédé voisin du précédent, mais utilisant des embrayages entre chaque cylindre gravé et la ligne de transmission est décrit dans le DE 27 53 433.A process similar to the previous one, but using clutches between each engraved cylinder and the transmission line is described in DE 27 53 433.
Un autre procédé de réglage utilisant des marques sur les cylindres gravés et des accouplements entre les cylindres et une ligne de transmission et qui sont découplés de leurs entraínements en correspondance avec la position de leurs marquages par rapport aux marquages sur le châssis pour le réglage de leurs positions de départ est décrit dans le EP 0 070 565. Ce procédé nécessite l'utilisation de la bande à imprimer et donc une perte importante de matière pour effectuer le réglage. En outre un tel procédé ne résout pas la question du réglage initial lors d'un premier travail sur la presse à imprimer.Another adjustment method using marks on the engraved cylinders and couplings between the cylinders and a transmission line and which are decoupled from their training in correspondence with the position of their markings in relation to the markings on the chassis for setting their starting positions is described in EP 0 070 565. This method requires the use of the tape to print and therefore a significant loss of material to make the adjustment. In addition, such a method does not solve not the question of the initial setting during a first job on the printing press.
Le but de la présente invention est de remédier, au moins en partie, aux inconvénients susmentionnés.The object of the present invention is to remedy the less in part, to the aforementioned drawbacks.
A cet effet, la présente invention a tout d'abord pour
objet un procédé de réglage initial de la coïncidence périphérique
des cylindres gravés des groupes d'impression successifs
d'une presse d'impression rotative polychrome en
fonction d'un travail déterminé, selon la revendication 1.For this purpose, the present invention is first of all for
object a process of initial adjustment of peripheral coincidence
engraved cylinders of successive printing units
of a full-color rotary printing press in
function of a particular work according to
Elle a également pour objet un dispositif pour la mise en oeuvre de ce procédé selon la revendication 5.It also relates to a device for setting of this method according to claim 5.
Grâce au procédé selon la présente invention, il suffit de rentrer dans le programmateur de commande de la presse à imprimer, les caractéristiques relatives au travail à effectuer. Sur la base de ces caractéristiques, travail recto-verso, nombre et choix des couleurs, donc choix des cylindres en travail, type de séchage, notamment, la trajectoire de la bande à imprimer est définie. Donc les longueurs de bande entre les cylindres sont connues, ce qui permet de connaítre les positions angulaires relatives des cylindres, qui correspondent au reste de la division de ces longueurs par le format (longueur périphérique) du cylindre. Généralement tous les cylindres gravés ont le même format.Thanks to the process according to the present invention, it suffices to get into the press control programmer at print, the characteristics of the work to be done. Based on these features, double-sided work, number and choice of colors, so choice of cylinders in work, type of drying, in particular, the trajectory the tape to be printed is defined. So the lengths of band between the cylinders are known, which allows know the relative angular positions of the cylinders, which correspond to the rest of the division of these lengths by the format (peripheral length) of the cylinder. Usually all engraved cylinders have the same format.
Sur la base de ces informations, le temps de réglage initial, pour un travail exécuté pour la première fois sur la presse à imprimer, de l'ensemble des cylindres qui peut comporter par exemple dix cylindres ne dépasse pas 1 minute sans aucune perte de bande. Ce procédé permet donc de donner une souplesse d'utilisation exceptionnelle à la presse à imprimer et ceci non seulement lorsqu'il s'agit de reprendre un travail pour lequel le réglage initial a déjà été fait et à été mémorisé, mais dès le réglage initial.On the basis of this information, the adjustment time initial, for a job performed for the first time on the printing press, of all the cylinders that can for example, ten cylinders do not exceed 1 minute without any tape loss. This process makes it possible exceptional flexibility of use in the press print and this not only when it comes to resume a job for which the initial setting has already been made and has been memorized, but from the initial setting.
La figure unique du dessin annexé illustre, schématiquement et à titre d'exemple, un mode de mise en oeuvre du procédé de réglage initial de la coïncidence périphérique des cylindres gravés des groupes d'impression successifs d'une presse d'impression rotative polychrome en fonction d'un travail déterminé.The single figure of the appended drawing illustrates, schematically and by way of example, a mode of implementation of initial setting procedure for peripheral coincidence engraved cylinders of successive printing units a full-color rotary printing press of a determined work.
Une machine d'impression polychrome en héliogravure comporte une ligne d'impression qui se compose de plusieurs cylindres gravés chacun desquels imprimant une couleur différente sur une bande de papier ou de carton continue qui se déroule dans la machine. Au moment ou chaque cylindre dépose l'encre sur le support, sa couleur doit être parfaitement en registre avec les autres. Dans le cas contraire, les différentes couleurs du motif imprimé sont décalées.A full color printing machine in rotogravure has a print line that consists of several engraved cylinders each of which print a different color on a strip of paper or cardboard unwind in the machine. At the moment each cylinder deposits the ink on the support, its color must be perfectly register with others. Otherwise, the different colors of the printed pattern are staggered.
L'erreur maximal acceptable pour le registre entre les couleurs est de 0,1 mm quand la machine est en production, pour le réglage initial des cylindres, objet de la présente invention, une précision de ± 5 mm est acceptable vu que le système de repérage peut corriger cette erreur grâce à un compensateur qui modifie la longueur de bande entre deux points d'impression.The maximum acceptable error for the registry between colors is 0.1 mm when the machine is in production, for the initial setting of cylinders, object of this invention, an accuracy of ± 5 mm is acceptable since the tracking system can correct this error through a compensator that changes the tape length between two printing points.
Le principe du réglage initial selon l'invention est basé sur le repérage automatique d'un point sur les cylindres gravés qui doit être fixe par rapport à la trame imprimée sur le format. Une fois la position de ce point repérée sur chaque cylindre, la séquence d'automation calcule le déplacement à faire sur chaque cylindre afin de l'amener en phase avec un cylindre de référence qui correspond au cylindre qui imprime la première couleur, ce déplacement dépend du chemin de bande entre les cylindres gravés qui dépend de la configuration donnée à la machine pour un travail donné.The principle of initial adjustment according to the invention is based on the automatic location of a point on the cylinders engraved which must be fixed in relation to the printed frame on the format. Once the position of this point is spotted on each cylinder, the automation sequence calculates the displacement to be made on each cylinder in order to bring it into phase with a reference cylinder that corresponds to the cylinder which prints the first color, this displacement depends of the tape path between the engraved cylinders which depends on the configuration given to the machine for a given job.
La machine pour la mise en oeuvre du procédé de réglage selon la présente invention comporte un moteur principal M qui entraíne un arbre de transmission MS. Celui-ci est relié à chaque cylindre gravé C1..Cn par des pignons de réduction Z1/Z2=1/3 dans cet exemple. Une pince pneumatique CL pilotée par un coupleur de bus BC lui-même relié à une électronique programmable MCS pour le contrôle de la machine, sert d'embrayage entre l'arbre de transmission MS et chaque cylindre C1..Cn.The machine for carrying out the adjustment process according to the present invention comprises a main motor M which drives a transmission shaft MS. This one is connected to each cylinder engraved C1..Cn by reduction gears Z1 / Z2 = 1/3 in this example. A pneumatic clamp CL controlled by a bus coupler BC itself connected to an electronics programmable MCS for machine control, serves as a clutch between the drive shaft MS and each cylinder C1..Cn.
L'arbre de chaque cylindre gravé C1..Cn porte une came CA alignée à une position angulaire fixe correspondant à celle d'une croix de repérage CR imprimée sur chaque cylindre gravé C1..Cn. La position angulaire de cette came et donc celle de la croix de repérage CR est détectée par un capteur inductif S relié au même coupleur de bus BC que la pince à commande pneumatique CL.The shaft of each engraved cylinder C1..Cn carries a cam AC aligned at a fixed angular position corresponding to that of a CR registration mark printed on each cylinder engraved C1..Cn. The angular position of this cam and so that of the cross mark CR is detected by a inductive sensor S connected to the same bus coupler BC as the pneumatic clamp CL.
Un codeur incrémental G est associé à un des arbres d'entraínement des cylindres gravés C1..Cn. Il s'agit d'un compteur à 4096 impulsions/tour, faisant un tour par tour de cylindre gravé C1..Cn. Etant donné que tous les arbres d'entraínement des cylindres gravés tournent constamment et à la même vitesse, un seul codeur permet de connaítre les positions angulaires de l'ensemble des cylindres gravés C1..Cn.An incremental encoder G is associated with one of the trees drive C1..Cn engraved cylinders. This is a counter at 4096 pulses / revolution, making one turn per revolution engraved cylinder C1..Cn. Since all trees drive engraved cylinders are constantly rotating and at the same speed, a single coder makes it possible to know the angular positions of all the engraved cylinders C1..Cn.
Chaque cylindre gravé imprime une marque de repérage, celle-ci est désignée par RM pour la première couleur qui est la couleur de référence imprimée par le premier cylindre gravé C1 et qui est désignée par CM pour le cylindre gravé C2. Ces marques RM, CM sont lues par des photocellules RC disposées pour que leur point de lecture se trouve à une distance déterminée PR du point d'impression sur le cylindre gravé C1..Cn. La distance de bande entre les points d'impression respectifs N et R du cylindre gravé Cn et du cylindre de référence C1 correspond à d(N-R).Each engraved cylinder prints a registration mark, this is designated RM for the first color that is the reference color printed by the first cylinder engraved C1 and which is designated CM for the engraved cylinder C2. These RM, CM marks are read by RC photocells arranged so that their reading point is at a determined distance PR from the printing point on the cylinder engraved C1..Cn. The tape distance between the print dots respectively N and R of the engraved cylinder Cn and C1 reference cylinder corresponds to d (N-R).
LY indique la distance sur le cylindre gravé, entre la croix de repérage CR de chaque cylindre et la marque de référence RM, CM imprimée sur la bande.LY indicates the distance on the engraved cylinder, between the cross mark CR of each cylinder and the mark of reference RM, CM printed on the tape.
La machine comporte pour sa commande une interface homme-machine HMI, qui peut prendre la forme d'un écran tactile de commande, relié à l'électronique programmable MCS et à l'électronique de contrôle du registre REG. En cours d'impression le système REG utilise le codeur incrémental G et les photocellules RC de lecture des marques de repérage RM, CM imprimées sur la bande d'impression. Un bus de terrain rapide BUS1 (T=5msec) est disposé entre les coupleurs de bus BC et l'électronique programmable MCS et un bus de supervision BUS2 est disposé entre l'électronique programmable MCS et l'électronique de contrôle de registre REG. L'électronique programmable MCS et l'électronique de contrôle de registre REG utilisent l'information donnée par le codeur incrémental G.The machine comprises for its control a human-machine interface HMI, which can take the form of a touch screen control unit, connected to the MCS programmable electronics and REG register control electronics. In print the REG system uses the incremental encoder G and RC photocells for reading the RM marking marks, CM printed on the print tape. A field bus BUS1 (T = 5msec) is arranged between the bus couplers BC and MCS programmable electronics and a supervision bus BUS2 is located between MCS programmable electronics and REG register control electronics. electronics programmable MCS and the registry control electronics REG use the information given by the incremental encoder BOY WUT.
Le moteur d'entraínement principal M de la machine d'impression est associé à un variateur de fréquence D qui reçoit un signal de commande CTR de l'électronique programmable MCS pour le contrôle de la machine. Ce variateur de fréquence sert à piloter le moteur principal M en position pendant le processus de calage initial des cylindres gravés C1..Cn. Un codeur du moteur GM également connecté à l'électronique de commande MCS permet un contrôle vectoriel, lequel sert à asservir le moteur en vitesse et en position.The main drive motor M of the machine is associated with a frequency converter D which receives a CTR command signal from the programmable electronics MCS for machine control. This drive frequency is used to control the main motor M in position during the initial calibration process of the engraved cylinders C1..Cn. A GM engine encoder also connected to electronics MCS command allows vector control, which serves to enslave the motor in speed and position.
Dans la phase de préparation initiale de la machine pour un travail effectué pour la première fois sur cette machine, l'opérateur doit aligner les cames CA avec la croix de repérage CR du cylindre gravé C1..Cn. Cette opération peut être effectuée une seule fois et peut être exécutée hors de la machine.In the initial preparation phase of the machine for work done for the first time on this machine, the operator must align the CA cams with the cross for locating CR of the engraved cylinder C1..Cn. This operation can be done only once and can be executed out of the machine.
On introduit le chariot d'encrage (non représenté) dans la machine sans se soucier de la position latérale ni de la position angulaire des cylindres C1..Cn.The inking carriage (not shown) is inserted into the machine without worrying about the lateral position or the angular position of cylinders C1..Cn.
Avant d'activer n'importe quel séquence automatique sur la machine, on doit sélectionner les caractéristiques du travail à passer dans la machine. On doit par exemple choisir si l'impression est recto ou verso, si le cylindre est actif ou non, quel type de séchoir est utilisé etc. Les informations relatives au travail permettent de définir le passage de la bande à imprimer dans la machine. Elles doivent être introduites même sur les groupes d'impression des cylindres C1..Cn qui ne sont pas sélectionnés et qui se trouvent entre deux groupes sélectionnés. Toutes ces informations sont introduites à l'aide du clavier de commande constituant l'interface HMI homme-machine.Before activating any automatic sequence on the machine, one must select the characteristics of the work to be done in the machine. For example, we must choose if printing is front or back, if the cylinder is active or not, what kind of dryer is used etc. The work information helps to define the passage of the tape to print in the machine. They must be introduced even on printing groups of cylinders C1..Cn which are not selected and which between two selected groups. All those informations are entered using the keypad constituting the human-machine HMI interface.
Les pinces CL des groupes d'impression des cylindres C1..Cn sélectionnés sont fermées, de sorte que ces cylindres sont cinématiquement solidaires de l'arbre de transmission MS, par conséquent du moteur M. L'opération de fermeture des pinces effectue en même temps le positionnement latéral des cylindres. Le positionnement latérale du cylindre permet d'amener le support de la came CA en face du capteur inductif S. Par conséquent, une fois que le cylindre se met en rotation, la position angulaire de la came CA peut être détectée par le capteur S. Le positionnement latérale se fait à l'aide du moteur ML. Dans cet exemple, ce moteur est de type sans balai Eex-d, piloté en position par l'électronique programmée programmable de commande MCS de la machine. Quand la machine est en production ce moteur Ml est utilisé pour le contrôle du registre latéral.CL clamps for cylinder printing units C1..Cn selected are closed, so these cylinders are kinematically integral with the drive shaft MS, therefore the motor M. The closing operation of the clamps simultaneously performs the lateral positioning of the cylinders. The lateral positioning of the cylinder allows to bring the support of the CA cam in front of the inductive sensor S. Therefore, once the cylinder goes into rotation, the angular position of the cam CA can be detected by the S sensor. Lateral positioning is made using the ML engine. In this example, this engine is brushless type Eex-d, controlled in position by electronics programmed programmable MCS control of the machine. When the machine is in production this engine Ml is used for the control of the lateral register.
L'opération de calage angulaire initial des cylindres gravés C1..Cn pour régler la coïncidence périphérique des cylindres gravés des groupes d'impression successifs peut alors commencer en utilisant une commande centrale située à proximité de l'interface HMI.The initial angular wedging operation of the cylinders engraved C1..Cn to adjust the peripheral coincidence of engraved cylinders of successive printing groups can then start using a central command located at near the HMI interface.
La séquence automatique démarre avec une rotation lente du moteur jusqu'à l'index du codeur incrémental G qui a pour effet de mettre à zéro le registre électronique de comptage situé dans l'électronique de commande MCS. Le codeur incrémental G suit la position angulaire de l'axe principal en aval des pignons de réduction Z1/Z2. Ce registre électronique de comptage travaille sur chaque flanc des signaux A, /A, B, /B et sa résolution au niveau des cylindres gravés C1..Cn est de 4096x4=16384 impulsions par tour de ces cylindres. Traduite en mm, cette résolution est d'environs 0,05mm sur le format maximal des cylindres. Le registre électronique de comptage est remis à zéro avec le signal index (Z, /Z) après au maximum un tour des cylindres C1..Cn. Le codeur incrémental G tourne tant que l'arbre de transmission MS est entraíné par le moteur principal M, indépendamment du fait qu'un cylindre gravé C1..Cn est en service ou non dans le groupe imprimeur où il est monté.Auto sequence starts with slow rotation from the motor to the index of the incremental encoder G which is effect of zeroing the electronic counting register located in the MCS control electronics. The incremental encoder G follows the angular position of the main axis in downstream of reduction gears Z1 / Z2. This electronic register counting works on each side of the signals A, / A, B, / B and its resolution at the engraved cylinders C1..It is 4096x4 = 16384 pulses per revolution of these cylinders. Translated in mm, this resolution is about 0.05mm on the maximum size of the cylinders. The electronic register counter is reset with the index signal (Z, / Z) after at most one revolution of cylinders C1..Cn. The encoder incremental G rotates as long as the drive shaft MS is driven by the main motor M, regardless of the fact that an engraved cylinder C1..Cn is in use or not in the printer group where he is mounted.
A partir de la mise à zéro du registre électronique de comptage, la lecture des positions angulaires des cames CA par le capteur inductif peut commencer. La position angulaire de chaque cylindre C1..Cn est repérée à l'instant où la came CA passe devant le capteur S. L'opération de repérage de toutes les cames CA doit être faite dans l'espace d'un tour des cylindres gravés C1..Cn. L'information donnée par le capteur S de chaque cylindre gravé C1..Cn remonte jusqu'à l'électronique programmable MCS par le bus de terrain BUS1 dont la période de lecture est d'environ 5msec. Le coupleur de bus BC qui permet de multiplexer l'information se trouve à proximité du capteur S.From the zeroing of the electronic register of counting, reading the angular positions of the cams CA by the inductive sensor can begin. The angular position of each cylinder C1..Cn is located at the moment when the CA cam passes in front of the S sensor. The tracking operation of all the cams CA must be made in the space of one round engraved cylinders C1..Cn. The information given by the S sensor of each cylinder engraved C1..Cn goes up to MCS programmable electronics via BUS1 fieldbus whose playback period is about 5msec. The coupler BC bus which allows to multiplex information is near the S-sensor
Quand la position de chaque cylindre est connue, l'électronique programmable MCS lance un calcul qui détermine le déphasage à donner à chaque cylindre gravé C1..Cn pour le mettre en registre avec le cylindre de référence C1 qui imprime la première couleur. Le calcul des déphasages successifs se base sur les longueurs de bande entre les groupes imprimeurs et sur le format imprimé, c'est-à-dire sur la longueur périphérique des cylindres gravés. Les longueurs sont calculées en fonction des choix que l'opérateur a fait en utilisant le clavier d'interface HMI. A chaque distance entre le groupe N et le groupe de référence R, est associé un angle de déphasage à faire sur le groupe N (2<=N<=Nmax), cet angle est proportionnel au reste de la division entière entre la distance d(N-R) et le format. Le résultat de ce calcul est une liste de valeurs OL exprimées en degré. L'électronique programmable MCS ordonne la liste OL dans le sens croissant.When the position of each cylinder is known, the electronics programmable MCS launches a calculation that determines the phase shift to be given to each engraved cylinder C1..Cn for the register with the C1 reference cylinder that prints the first color. The calculation of successive phase shifts is based on band lengths between groups printers and on the printed format, that is to say on the peripheral length of the engraved cylinders. The lengths are calculated according to the choices that the operator made using the HMI interface keyboard. At each distance between the group N and the reference group R, is associated a phase shift angle to be made on the group N (2 <= N <= Nmax), this angle is proportional to the rest of the whole division between the distance d (N-R) and the format. The result of this calculation is a list of OL values expressed in degrees. The programmable electronics MCS orders the list OL in the growing sense.
L'électronique programmable MCS fait tourner le moteur principal M pour amener le premier cylindre gravé C1..Cn de la liste OL dans la position angulaire voulue. Une fois la position atteinte, le moteur M s'arrête et la pince CL du cylindre gravé C1..Cn est ouverte, comme illustré pour le cylindre C2. De ce fait le cylindre C2 est désaccouplé de l'arbre de transmission MS.Programmable electronics MCS turns the motor main M to bring the first engraved cylinder C1..Cn of the list OL in the desired angular position. Once position reached, the motor M stops and the clamp CL engraved cylinder C1..Cn is open, as shown for the C2 cylinder. As a result, the cylinder C2 is uncoupled from the transmission shaft MS.
Le processus de réglage continue en positionnant tous les autres cylindres gravés C1..Cn dans l'ordre des déphasages croissants selon la liste OL établie et en utilisant la même procédure que celle utilisée pour le premier cylindre gravé C2. L'avantage de cette procédure est que les cylindres gravés C1..Cn qui ont un plus grand déplacement angulaire à faire bénéficient des déplacements angulaires des cylindres gravés qui les précédent dans la liste OL. Cette procédure permet de positionner tous les cylindres gravés C1..Cn en un tour du codeur G (3 tours moteur principal). Cette séquence demande au plus un temps d'exécution de 1 min pour une ligne d'impression comprenant 10 groupes imprimeurs sélectionnés.The tuning process continues by positioning all the other engraved cylinders C1..Cn in the order of phase shifts according to OL list established and using the same procedure as that used for the first cylinder engraved C2. The advantage of this procedure is that the cylinders engraved C1..Cn which have a larger angular displacement to benefit from the angular movements of engraved cylinders that preceded them in the OL list. This procedure allows to position all the engraved cylinders C1..Cn in one turn of the encoder G (3 turns main motor). This sequence requires at most a run time of 1 min for a printing line with 10 printing units selected.
A la fin de la procédure de réglage, tous les cylindres gravés C1..Cn sont positionnés, l'électronique programmable MCS détermine la position finale des cylindres gravés C1..Cn par rapport à l'index du codeur G, cette fonction permet de connaítre la position de la croix de repérage CR de chaque cylindre gravé C1..Cn par rapport à l'index du codeur G.At the end of the adjustment procedure, all the cylinders engraved C1..Cn are positioned, programmable electronics MCS determines the final position of engraved cylinders C1..Cn compared to the G encoder index, this function allows you to know the position of the CR identification cross of each engraved cylinder C1..Cn with respect to the index of the encoder G.
Les informations sur la position de CR pour chaque cylindre gravé C1..Cn sont envoyées au système de contrôle de registre REG avec les informations relatives à la distance PR en mm entre le point d'impression d'un cylindre gravé donné C1..Cn et le point de lecture de la cellule de repérage RC associée à ce cylindre gravé.Information on the CR position for each cylinder engraved C1..Cn are sent to the control system REG register with distance information PR in mm between the printing point of an engraved cylinder given C1..Cn and the reading point of the tracking cell RC associated with this engraved cylinder.
Le système de contrôle de registre REG utilise les deux informations susmentionnées relatives à la position du repère CR de chaque cylindre C1..Cn et à la distance PR entre le point d'impression et le point de lecture, en combinaison avec la connaissance de la distance LY entre la marque de repérage imprimée CM par rapport aux repères CR des cylindres gravés C1..Cn. Cette distance LY est introduite par l'opérateur au moment de la configuration d'un travail. Pour le système de repérage, ces trois informations sont nécessaires et suffisantes pour régler l'ouverture d'une fenêtre de lecture du système de contrôle de registre REG au moment du passage des marques RM, CM sur le format imprimé dans le champ de vision des photocellules de lecture RC connectées au système de contrôle de registre REG. Les calculs de ces paramètres y compris l'envoi au système de contrôle de registre REG à travers le BUS2 demandent un temps globale inférieur à 2 sec.The REG register control system uses both aforementioned information relating to the position of the reference CR of each cylinder C1..Cn and at the distance PR between the printing point and reading point, in combination with knowledge of the distance LY between the mark of CM printed marking with respect to CR markings of cylinders engraved C1..Cn. This distance LY is introduced by the operator when setting up a job. For the tracking system, these three pieces of information are needed and sufficient to adjust the opening of a window reading of the REG register control system at the time the passage of the RM, CM marks on the printed format in the field of view of connected RC photocells REG register control system. The calculations of these parameters including sending to the control system of REG register through the BUS2 request a global time less than 2 sec.
Après ce réglage, la machine peut être mise en marche, les couleurs seront en phase et le système de contrôle de registre REG est synchronisé pour lire les marques de repérage RM, CM dans la fenêtre réglée sur le passage de ces marques dans le champ de vision des photocellules de lecture RC.After this adjustment, the machine can be started, the colors will be in phase and the control system of REG register is synchronized to read the marks of RM, CM in the window set on the passage of these marks in the field of view of reading photocells RC.
Au cas où la machine d'impression dont le procédé de réglage vient d'être décrit est associée à un module de découpe en ligne, la découpe peut être calée par rapport à l'impression de la machine d'impression. La mise en registre du module de découpe sera obtenue par le système de contrôle de registre REG de la machine d'impression grâce à un oscilloscope digital.In case the printing machine whose method of setting just described is associated with a module of cutting in line, the cut can be wedged in relation to the impression of the printing machine. The registration of the cutting module will be obtained by the control system REG register of the printing machine thanks to a digital oscilloscope.
Le procédé selon la présente invention permet donc un réglage initial d'une machine d'impression polychrome de manière complètement automatique et sans consommation de bande. La durée totale de la mise en oeuvre de cette opération de réglage n'excède pas 2 minutesThe method according to the present invention thus allows a initial setting of a full color printing machine so completely automatic and without tape consumption. The total duration of the implementation of this operation setting does not exceed 2 minutes
Claims (6)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE602004004633T DE602004004633T2 (en) | 2004-05-05 | 2004-05-05 | Method and apparatus for initially controlling the registration of gravure cylinders in a multicolor rotary printing machine |
AT04405282T ATE353282T1 (en) | 2004-05-05 | 2004-05-05 | METHOD AND DEVICE FOR INITIAL CONTROL OF THE REGISTRATION OF GRAPH PRINTING CYLINDERS IN A MULTI-COLOR ROTARY PRINTING PRESS |
EP04405282A EP1593502B1 (en) | 2004-05-05 | 2004-05-05 | Method and apparatus for the initial control of the adjustement of gravure cylinders of a rotary multicolor printing press |
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EP04405282A EP1593502B1 (en) | 2004-05-05 | 2004-05-05 | Method and apparatus for the initial control of the adjustement of gravure cylinders of a rotary multicolor printing press |
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EP1593502A1 true EP1593502A1 (en) | 2005-11-09 |
EP1593502B1 EP1593502B1 (en) | 2007-02-07 |
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EP04405282A Expired - Lifetime EP1593502B1 (en) | 2004-05-05 | 2004-05-05 | Method and apparatus for the initial control of the adjustement of gravure cylinders of a rotary multicolor printing press |
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EP (1) | EP1593502B1 (en) |
AT (1) | ATE353282T1 (en) |
DE (1) | DE602004004633T2 (en) |
Cited By (1)
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US9010242B2 (en) | 2010-06-02 | 2015-04-21 | Mueller Martini Holding Ag | Method and device for controlling the register settings of a printing press |
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US11485101B2 (en) | 2017-07-14 | 2022-11-01 | Georgia-Pacific Corrugated Llc | Controls for paper, sheet, and box manufacturing systems |
US10642551B2 (en) | 2017-07-14 | 2020-05-05 | Georgia-Pacific Corrugated Llc | Engine for generating control plans for digital pre-print paper, sheet, and box manufacturing systems |
US11520544B2 (en) | 2017-07-14 | 2022-12-06 | Georgia-Pacific Corrugated Llc | Waste determination for generating control plans for digital pre-print paper, sheet, and box manufacturing systems |
US20190016551A1 (en) | 2017-07-14 | 2019-01-17 | Georgia-Pacific Corrugated, LLC | Reel editor for pre-print paper, sheet, and box manufacturing systems |
US11449290B2 (en) | 2017-07-14 | 2022-09-20 | Georgia-Pacific Corrugated Llc | Control plan for paper, sheet, and box manufacturing systems |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0467316A1 (en) * | 1990-07-20 | 1992-01-22 | OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. | Method of mutually adjusting single-colour images on a multicolour rotary printing press |
EP0835753A1 (en) * | 1996-10-10 | 1998-04-15 | Hurletron, Incorporated | Pre-registration system for a web printing machine |
-
2004
- 2004-05-05 AT AT04405282T patent/ATE353282T1/en not_active IP Right Cessation
- 2004-05-05 EP EP04405282A patent/EP1593502B1/en not_active Expired - Lifetime
- 2004-05-05 DE DE602004004633T patent/DE602004004633T2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0467316A1 (en) * | 1990-07-20 | 1992-01-22 | OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. | Method of mutually adjusting single-colour images on a multicolour rotary printing press |
EP0835753A1 (en) * | 1996-10-10 | 1998-04-15 | Hurletron, Incorporated | Pre-registration system for a web printing machine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9010242B2 (en) | 2010-06-02 | 2015-04-21 | Mueller Martini Holding Ag | Method and device for controlling the register settings of a printing press |
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DE602004004633T2 (en) | 2007-11-08 |
ATE353282T1 (en) | 2007-02-15 |
DE602004004633D1 (en) | 2007-03-22 |
EP1593502B1 (en) | 2007-02-07 |
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