EP0464001A2 - Rotary printing press for overprinting - Google Patents

Rotary printing press for overprinting Download PDF

Info

Publication number
EP0464001A2
EP0464001A2 EP91830134A EP91830134A EP0464001A2 EP 0464001 A2 EP0464001 A2 EP 0464001A2 EP 91830134 A EP91830134 A EP 91830134A EP 91830134 A EP91830134 A EP 91830134A EP 0464001 A2 EP0464001 A2 EP 0464001A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
areas
intended
printing
rotary press
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.)
Withdrawn
Application number
EP91830134A
Other languages
German (de)
French (fr)
Other versions
EP0464001A3 (en
Inventor
Giancarlo Arici
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0464001A2 publication Critical patent/EP0464001A2/en
Publication of EP0464001A3 publication Critical patent/EP0464001A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for

Definitions

  • the present invention relates to a web press for overprinting.
  • packaging and the containers of articles and products belonging to several commercial sectors can be obtained from reels of flexible materials, such as for example paper supports and the like, having on their surfaces trade names and inscriptions. of all kinds, as well as the compositions of the products contained therein, advertising indications and other information of any kind, all these data being printed and repeated cyclically in correspondence of each packaging or container to be produced.
  • the main object of the present invention is to produce a rotary press for overprinting making it possible to modify on continuous flexible supports wound in reels the printed areas containing messages which are now obsolete, which would thus make it possible to completely recover the same flexible printed supports.
  • an important aim of the invention is to produce a rotary press for overprinting capable of very precisely overprinting the already printed areas to be modified, while ensuring a high degree of reliability.
  • Another object of the invention is to provide at least one specific embodiment of the invention which is advantageous in itself and able to offer technical progress in this particular field.
  • a rotary press for overprinting characterized in that it comprises: at least one overprinting group provided with at least one cylinder to be printed having on its surface printing zones, at least a first support element of a first reel of flexible support to be unwound, said flexible support having areas to be overprinted, at least a second support element for winding a second overprinted spool of said flexible support, a plurality of return rollers of said flexible support arranged along a working path between said first and second support elements, means for controlling the advance of said flexible support along said travel path work, and means of controlling said advance, intended to ensure that said areas to be overprinted exactly match in succession said corresponding printing areas.
  • the rotary press according to the invention has generally been indicated by the reference 1. It comprises at least one overprint group 2, in turn comprising at least one printing cylinder 3 having on its surface printing areas and intended to perform printing according to printing techniques known per se.
  • a number of overprinting groups 2 is provided equal to the number of colors to be transferred onto a flexible support 4. The latter, already printed and wound up to form a first reel 5 to be overprinted, provides areas printed at modify and therefore overprint.
  • the first coil 5 is supported by a first support element 6 and the flexible support 4 extends and takes place along a work path defined by a plurality of deflection rollers 7 and included between said first coil 5 and the second overprinted reel 8 supported by a second support element 9 provided with a motor for winding the flexible support 4.
  • the control means 10 for advancing the flexible support 4 comprise a first engine group 11 mechanically connected to the printing cylinder 3.
  • Means 12 are also provided for controlling the advance of the flexible support 4, intended to allow said printing areas of the printing cylinder 3 to follow in succession said areas to be overprinted of the flexible support 4.
  • the control means 12 comprise a cylinder of traction 13, arranged upstream of the printing cylinder 3 and actuated by a second motor group 14, for example a geared motor, a device 15 for detecting possible phase shifts between the printing areas and the areas to be overprinted, and a processing unit for signals 16, intended to receive phase shift signals from the detection device 15 and to send activation signals to the second motor unit 14.
  • the detection device 15 comprises a read head 17, arranged between the traction cylinder 13 and the printing cylinder 3 and intended to read identification marks arranged in correspondence of the areas to be overprinted and a sensor 18, placed near the printing cylinder 3 and intended to detect the rate of passage of said printing areas.
  • the second motor group 14 is connected, by mechanical connection means 19 comprising a Cardan joint 20 and a differential 21, to the first motor group 11.
  • the latter therefore rotates at a speed substantially synchronized with the speed of the cylinder to be printed 3 the second engine group 14 and the traction cylinder 13 connected to the latter.
  • auxiliary control cylinder 22 driven by a direct current electric motor 22a which can be activated by activation signals sent by the processing unit 16.
  • the electric motor 22a is also connected, by the interposition of the Cardan joint 20 and the differential 21, to the first motor unit 11.
  • counter-rollers 23 are provided in accordance with the printing cylinder 3, the traction cylinder 13 and the auxiliary control cylinder 22, these counter-rollers having the function of increasing the adhesion of the flexible support 4 on said said cylinders.
  • the printing cylinder 3 the traction cylinder 13 and the auxiliary control cylinder 22 drive the flexible support 4 at a preset speed, since they are all actuated by the first engine group 11.
  • the second motor group 14 and the electric motor 22a are only inactive mechanical members driven in rotation by the first motor group 11 by means of the differential 21 and the universal joint 20.
  • the read head 17 detects the passage of the identification marks matched with each zone to be overprinted and checks, in cooperation with the sensor 18, that this zone exactly matches the corresponding printer zone of the cylinder to be printed 3.
  • the processing unit 16 consequently transmits activation signals both for the second motor unit 14 and for the electric motor 22a.
  • These activation signals suitably calculated give rise, according to the detections carried out, to an active intervention of the traction cylinder 13 and of the auxiliary control cylinder 22. The latter, depending on the case, increase or reduce the speed of advance of the flexible support portions that are against them until when the phase shifts indicated by the detection device 15 are completely compensated.
  • the invention achieves the aims and allows significant advantages to be obtained.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

There is provided a rotary printing press (1) for overprinting, comprising at least one overprinting group (2) equipped with at least one overprinting cylinder (3) having printing zones on its surface, at least one first support element (6) of a first spool (5) of a flexible support (4) to be unwound, the flexible support (4) having zones intended to be overprinted, at least one second support element (9) for the winding of a second overprinted spool (8) of said flexible support (4), means (10) for commanding the advance of the flexible support (4) along a working path located between the first and second support elements (6, 9), and means (12) for controlling the advance, which are intended for ensuring that said zones to be overprinted successively match exactly said corresponding printing zones. <IMAGE>

Description

La présente invention a trait à une rotative à bobines pour la surimpression.The present invention relates to a web press for overprinting.

On sait que les emballages et les conteneurs d'articles et produits appartenant à plusieurs secteurs commerciaux peuvent être obtenus à partir de bobines de matériaux souples, tels que par exemple les supports en papier et similaires, présentant sur leurs surfaces des dénominations et des inscriptions commerciales de tout genre, ainsi que les compositions des produits y contenus, des indications publicitaires et d'autres informations de n'importe quelle nature, toutes ces données étant imprimées et répétées de manière cyclique en correspondance de chaque emballage ou conteneur à réaliser.It is known that the packaging and the containers of articles and products belonging to several commercial sectors can be obtained from reels of flexible materials, such as for example paper supports and the like, having on their surfaces trade names and inscriptions. of all kinds, as well as the compositions of the products contained therein, advertising indications and other information of any kind, all these data being printed and repeated cyclically in correspondence of each packaging or container to be produced.

Toutefois on peut avoir besoin assez souvent de varier partiellement quelques-uns des éléments imprimés sur le support. Par exemple le code à barres, les dates d'échéance, les ingrédients d'un produit peuvent subir des changements parfois imprévus. Jusqu'à présent quand on avait en stock une ou plusieurs bobines de ce matérieau imprimé, contenant des indications ou des inscriptions désormais dépassées, la seule solution possible était celle de jeter ces bobines qui n'étaient plus utilisables, ce qui évidemment entraînait une perte économique dans certains cas importante.However, it may quite often be necessary to partially vary some of the elements printed on the support. For example the barcode, expiration dates, ingredients of a product can undergo sometimes unforeseen changes. Until now when we had in stock one or more reels of this printed material, containing indications or inscriptions now outdated, the only possible solution was that of throwing these reels which were no longer usable, which obviously led to a loss economical in some cases important.

Dans ces conditions, le but principal de la présente invention est de réaliser une rotative à bobines pour la surimpression permettant de modifier sur des supports souples continus enroulés en bobines les zones imprimées contenant des messages désormais obsolètes, ce qui permettrait de récupérer ainsi complètement les mêmes supports souples imprimés.Under these conditions, the main object of the present invention is to produce a rotary press for overprinting making it possible to modify on continuous flexible supports wound in reels the printed areas containing messages which are now obsolete, which would thus make it possible to completely recover the same flexible printed supports.

Dans le contexte de ce but général, un but important de l'invention est de réaliser une rotative pour la surimpression capable d'effectuer de manière très précise la surimpression sur les zones déjà imprimées à modifier, tout en assurant un haut degré de fiabilité.In the context of this general aim, an important aim of the invention is to produce a rotary press for overprinting capable of very precisely overprinting the already printed areas to be modified, while ensuring a high degree of reliability.

Un autre but de l'invention est de prévoir au moins une forme spécifique d'exécution de l'invention qui soit avantageuse en soi et en mesure d'offrir un progrès technique dans ce domaine particulier.Another object of the invention is to provide at least one specific embodiment of the invention which is advantageous in itself and able to offer technical progress in this particular field.

Les buts précités et d'autres encore qui ressortiront plus clairement par la suite sont essentiellement atteints par une rotative à bobines pour la surimpression, caractérisée en ce qu'elle comporte: au moins un groupe de surimpression pourvu d'au moins un cylindre à imprimer présentant sur sa surface des zones imprimantes, au moins un premier élément de support d'une première bobine de support souple à dérouler, ledit support souple présentant des zones à surimprimer, au moins un deuxième élément de support pour l'enroulement d'une deuxième bobine surimprimée dudit support souple, une pluralité de rouleaux de renvoi dudit support souple disposés le long d'un parcours de travail compris entre lesdits premier et deuxième éléments de support, des moyens de commande de l'avance dudit support souple le long dudit parcours de travail, et des moyens de contrôle de ladite avance, destinés à assurer que lesdites zones à surimprimer épousent exactement en succession lesdites zones imprimantes correspondantes.The above-mentioned aims and others which will emerge more clearly hereinafter are essentially achieved by a rotary press for overprinting, characterized in that it comprises: at least one overprinting group provided with at least one cylinder to be printed having on its surface printing zones, at least a first support element of a first reel of flexible support to be unwound, said flexible support having areas to be overprinted, at least a second support element for winding a second overprinted spool of said flexible support, a plurality of return rollers of said flexible support arranged along a working path between said first and second support elements, means for controlling the advance of said flexible support along said travel path work, and means of controlling said advance, intended to ensure that said areas to be overprinted exactly match in succession said corresponding printing areas.

On donne ci-après, à titre d'exemple non limitatif, la description d'une forme d'exécution préférée mais non exclusive d'une rotative à bobines pour la surimpression suivant la présente invention, en se référant au dessin annexé sur lequel l'unique figure montre schématiquement en élévation de face la machine en question.A description is given below, by way of non-limiting example, of a preferred but non-exclusive embodiment of a web press for overprinting according to the present invention, with reference to the attached drawing in which the 'single figure shows schematically in front elevation the machine in question.

Sur ladite figure la rotative suivant l'invention a été généralement indiquée par la référence 1. Elle comporte au moins un groupe de surimpression 2, à son tour comprenant au moins un cylindre à imprimer 3 présentant sur sa surface des zones imprimantes et destiné à effectuer l'impression suivant des techniques d'impression connues en soi. En cas de surimpression à plusieurs couleurs on prévoit un nombre de groupes de surimpression 2 égal au nombre de couleurs à transférer sur un support souple 4. Ce dernier, déjà imprimé et enroulé à former une première bobine 5 à surimprimer, prévoit des zones imprimées à modifier et donc à surimprimer.In said figure the rotary press according to the invention has generally been indicated by the reference 1. It comprises at least one overprint group 2, in turn comprising at least one printing cylinder 3 having on its surface printing areas and intended to perform printing according to printing techniques known per se. In the case of overprinting with several colors, a number of overprinting groups 2 is provided equal to the number of colors to be transferred onto a flexible support 4. The latter, already printed and wound up to form a first reel 5 to be overprinted, provides areas printed at modify and therefore overprint.

La première bobine 5 est supportée par un premier élément de support 6 et le support souple 4 s'étend et se déroule le long d'un parcours de travail défini par une pluralité de rouleaux de renvoi 7 et compris entre ladite première bobine 5 et la deuxième bobine surimprimée 8 soutenue par un deuxième élément de support 9 pourvu d'un moteur pour l'enroulement du support souple 4.The first coil 5 is supported by a first support element 6 and the flexible support 4 extends and takes place along a work path defined by a plurality of deflection rollers 7 and included between said first coil 5 and the second overprinted reel 8 supported by a second support element 9 provided with a motor for winding the flexible support 4.

Les moyens de commande 10 pour l'avance du support souple 4 comportent un premier groupe moteur 11 relié mécaniquement au cylindre à imprimer 3. Des moyens mécaniques de sélection de la vitesse, contenus dans le premier groupe moteur 11 et connus en soi, permettent une sélection convenable de la vitesse de rotation du cylindre à imprimer 3, suivant son diamètre.The control means 10 for advancing the flexible support 4 comprise a first engine group 11 mechanically connected to the printing cylinder 3. Mechanical means for selecting the speed, contained in the first engine group 11 and known per se, allow a suitable selection of the rotation speed of the printing cylinder 3, according to its diameter.

On prévoit également des moyens de contrôle 12 de l'avance du support souple 4, destinés à permettre auxdites zones imprimantes du cylindre à imprimer 3 d'épouser en succession lesdites zones à surimprimer du support souple 4.Means 12 are also provided for controlling the advance of the flexible support 4, intended to allow said printing areas of the printing cylinder 3 to follow in succession said areas to be overprinted of the flexible support 4.

Les moyens de contrôle 12 comportent un cylindre de traction 13, disposé en amont du cylindre à imprimer 3 et actionné par un deuxième groupe moteur 14, par exemple un motoréducteur, un dispositif de détection 15 d'éventuels déphasages entre les zones imprimantes et les zones à surimprimer, et une unité de traitement de signaux 16, destinée à recevoir des signaux de déphasage du dispositif de détection 15 et à envoyer des signaux d'activation au deuxième groupe moteur 14.The control means 12 comprise a cylinder of traction 13, arranged upstream of the printing cylinder 3 and actuated by a second motor group 14, for example a geared motor, a device 15 for detecting possible phase shifts between the printing areas and the areas to be overprinted, and a processing unit for signals 16, intended to receive phase shift signals from the detection device 15 and to send activation signals to the second motor unit 14.

Le dispositif de détection 15 comporte une tête de lecture 17, disposée entre le cylindre de traction 13 et le cylindre à imprimer 3 et destinée à lire des marques d'identification disposées en correspondance des zones à surimprimer et un senseur 18, placé à proximité du cylindre à imprimer 3 et destiné à détecter la cadence de passage desdites zones imprimantes.The detection device 15 comprises a read head 17, arranged between the traction cylinder 13 and the printing cylinder 3 and intended to read identification marks arranged in correspondence of the areas to be overprinted and a sensor 18, placed near the printing cylinder 3 and intended to detect the rate of passage of said printing areas.

Le deuxième groupe moteur 14 est relié, par des moyens de liaison mécaniques 19 comprenant un joint de Cardan 20 et un différentiel 21, au premier groupe moteur 11. Ce dernier donc entraîne en rotation à une vitesse sensiblement synchronisée avec la vitesse du cylindre à imprimer 3 le deuxième groupe moteur 14 et le cylindre de traction 13 relié à ce dernier.The second motor group 14 is connected, by mechanical connection means 19 comprising a Cardan joint 20 and a differential 21, to the first motor group 11. The latter therefore rotates at a speed substantially synchronized with the speed of the cylinder to be printed 3 the second engine group 14 and the traction cylinder 13 connected to the latter.

Avantageusement, à proximité du cylindre de traction 13 il y a un cylindre auxiliaire de contrôle 22 entraîné par un moteur électrique 22a à courant continu qui peut être activé par des signaux d'activation envoyés par l'unité de traitement 16. Le moteur électrique 22a est également relié, par l'interposition du joint de Cardan 20 et du différentiel 21, au premier groupe moteur 11.Advantageously, near the traction cylinder 13 there is an auxiliary control cylinder 22 driven by a direct current electric motor 22a which can be activated by activation signals sent by the processing unit 16. The electric motor 22a is also connected, by the interposition of the Cardan joint 20 and the differential 21, to the first motor unit 11.

Enfin, on prévoit des contre-rouleaux 23 en concordance avec le cylindre à imprimer 3, le cylindre de traction 13 et le cylindre auxiliaire de contrôle 22, ces contre-rouleaux ayant pour fonction d'augmenter l'adhérence du support souple 4 sur lesdits cylindres.Finally, counter-rollers 23 are provided in accordance with the printing cylinder 3, the traction cylinder 13 and the auxiliary control cylinder 22, these counter-rollers having the function of increasing the adhesion of the flexible support 4 on said said cylinders.

Le fonctionnement d'une rotative à bobines du type décrit ci-dessus d'un point de vue surtout structural est le suivant.The operation of a rotary web press of the type described above from a particularly structural point of view is as follows.

Après avoir mis en place de manière correcte le support souple 4 à surimprimer le long du parcours de travail compris entre la première bobine 5 et la deuxième bobine 8, on commence les opérations en surimpression, à travers les groupes de surimpression 2.After having correctly put in place the flexible support 4 to be overprinted along the working path between the first reel 5 and the second reel 8, the overprinting operations are started, through the overprinting groups 2.

Pendant le fonctionnement normal le cylindre à imprimer 3, le cylindre de traction 13 et le cylindre auxiliaire de contrôle 22 entraînent le support souple 4 à une vitesse préétablie, du fait qu'ils sont tous actionnés par le premier groupe moteur 11. Dans cette situation le deuxième groupe moteur 14 et le moteur électrique 22a ne sont que des organes mécaniques inactives entraînés en rotation par le premier groupe moteur 11 au moyen du différentiel 21 et du joint de Cardan 20.During normal operation the printing cylinder 3, the traction cylinder 13 and the auxiliary control cylinder 22 drive the flexible support 4 at a preset speed, since they are all actuated by the first engine group 11. In this situation the second motor group 14 and the electric motor 22a are only inactive mechanical members driven in rotation by the first motor group 11 by means of the differential 21 and the universal joint 20.

La tête de lecture 17 détecte le passage des marques d'identification mises en correspondance de chaque zone à surimprimer et contrôle, en coopération avec le senseur 18, que cette zone épouse exactement la zone imprimante correspondante du cylindre à imprimer 3.The read head 17 detects the passage of the identification marks matched with each zone to be overprinted and checks, in cooperation with the sensor 18, that this zone exactly matches the corresponding printer zone of the cylinder to be printed 3.

Si lors de ce passage des avances ou des retards même très petits se produisent par rapport à l'instant exact préétabli selon les détections du senseur 18, ces différences étant dues à des glissements accidentels du support souple 4 par rapport aux cylindres par lesquels il est entraîné, l'unité de traitement 16 émet en conséquence des signaux d'activation tant pour le deuxième groupe moteur 14 que pour le moteur électrique 22a. Ces signaux d'activation convenablement calculés donnent lieu, suivant les détections effectuées, à une intervention active du cylindre de traction 13 et du cylindre auxiliaire de contrôle 22. Ces derniers, suivant les cas, augmentent ou réduisent la vitesse d'avance des portions de support souple que se trouvent contre ceux-ci jusqu'à quand les déphasages indiqués par le dispositif de détection 15 sont complètement compensés.If during this passage even very small advances or delays occur with respect to the exact instant pre-established according to the detections of the sensor 18, these differences being due to accidental slippages of the flexible support 4 relative to the cylinders by which it is driven, the processing unit 16 consequently transmits activation signals both for the second motor unit 14 and for the electric motor 22a. These activation signals suitably calculated give rise, according to the detections carried out, to an active intervention of the traction cylinder 13 and of the auxiliary control cylinder 22. The latter, depending on the case, increase or reduce the speed of advance of the flexible support portions that are against them until when the phase shifts indicated by the detection device 15 are completely compensated.

On peut également causer l'intervention du deuxième groupe moteur 14 séparément du moteur électrique 22a ou prévoir des installations où l'un seulement de ceux-ci est présent. Toutefois la construction prévoyant la présence soit du deuxième groupe moteur soit du moteur électrique assure des résultats de fonctionnement plus fiables.It is also possible to cause the intervention of the second motor group 14 separately from the electric motor 22a or to provide installations where only one of these is present. However, the construction providing for the presence of either the second motor unit or the electric motor ensures more reliable operating results.

L'invention atteint les buts visés et permet d'obtenir des avantages importants.The invention achieves the aims and allows significant advantages to be obtained.

Il faut souligner que le contrôle constant effectué sans interruption pendant les étapes de travail relatives à la surimpression permet de découvrir immédiatement des anomalies éventuelles même de petite importance et donc permet d'obtenir des modifications très précises et de qualité excellente sur les zones imprimées désormais obsolètes.It should be emphasized that the constant control carried out without interruption during the work steps relating to the overprinting makes it possible to immediately discover any anomalies, even of minor importance and therefore allows very precise and excellent quality modifications to be obtained on the printed areas which are now obsolete. .

Il faut enfin souligner que la particulière forme d'exécution illustrée est avantageuse même dans ses aspects les plus spécifiques.Finally, it should be emphasized that the particular embodiment illustrated is advantageous even in its most specific aspects.

L'invention ainsi conçue est susceptible de nombreuses modifications et variantes sans pour cela s'éloigner du cadre de protection de l'invention. En outre tous les détails peuvent être remplacés par des éléments techniquement équivalents. Lors de sa mise en oeuvre pratique, les matériaux, les formes et les dimensions peuvent être de n'importe quelle nature et grandeur suivant les besoins.The invention thus conceived is susceptible of numerous modifications and variants without thereby departing from the protective framework of the invention. In addition, all details can be replaced by technically equivalent elements. During its practical implementation, the materials, the shapes and the dimensions can be of any kind and size according to the needs.

Claims (11)

Rotative à bobines (1) pour la surimpression, caractérisée en ce qu'elle comporte: - au moins un groupe de surimpression (2) pourvu d'au moins un cylindre à imprimer (3) présentant sur sa surface des zones imprimantes, - au moins un premier élément de support (6) d'une première bobine (5) de support souple (4) à dérouler, ledit support souple présentant des zones à surimprimer, - au moins un deuxième élément de support (9) pour l'enroulement d'une deuxième bobine (8) surimprimée dudit support souple (4), - une pluralité de rouleaux de renvoi (7) dudit support souple (4) disposés le long d'un parcours de travail compris entre lesdits premier et deuxième éléments de support (6, 9), - des moyens de commande (10) de l'avance dudit support souple (4) le long dudit parcours de travail, et - des moyens de contrôle (12) de ladite avance, destinés à assurer que lesdites zones à surimprimer épousent exactement en succession lesdites zones imprimantes correspondantes. Coil rotary press (1) for overprinting, characterized in that it comprises: - at least one overprint group (2) provided with at least one printing cylinder (3) having printing areas on its surface, - at least a first support element (6) of a first reel (5) of flexible support (4) to be unwound, said flexible support having areas to be overprinted, - at least one second support element (9) for winding a second coil (8) overprinted with said flexible support (4), a plurality of deflection rollers (7) of said flexible support (4) arranged along a working path comprised between said first and second support elements (6, 9), - control means (10) for advancing said flexible support (4) along said work path, and - Control means (12) of said advance, intended to ensure that said areas to be overprinted exactly follow in succession said corresponding printing areas. Rotative selon la revendication 1, caractérisée en ce que lesdits moyens de commande (10) comportent un premier groupe moteur (11) relié audit cylindre à imprimer (3) et lesdits moyens de contrôle (12) comportent: - un dispositif de détection (15) destiné à détecter des déphasages entre lesdites zones à surimprimer et lesdites zones imprimantes, - un cylindre de traction (13) disposé en amont du cylindre à imprimer (3), - un deuxième groupe moteur (14) relié audit cylindre de traction (13), et - une unité de traitement de signaux (16) destinée à recevoir des signaux de déphasage dudit dispositif de détection (15) et à envoyer des signaux d'activation audit deuxième groupe moteur (14). A rotary press according to claim 1, characterized in that said control means (10) comprise a first engine group (11) connected to said printing cylinder (3) and said control means (12) comprise: - a detection device (15) intended to detect phase shifts between said areas to be overprinted and said printing areas, - a traction cylinder (13) disposed upstream of the cylinder to be printed (3), a second engine group (14) connected to said traction cylinder (13), and - a signal processing unit (16) intended to receive phase shift signals from said device detection (15) and sending activation signals to said second motor unit (14). Rotative selon la revendication 2, caractérisée en ce que des marques d'identification sont disposées sur lesdites zones à surimprimer et en ce que ledit dispositif de détection (15) comporte: - une tête de lecture (17) disposée le long dudit parcours de travail entre ledit cylindre de traction (13) et le cylindre à imprimer (3) et destinée à lire lesdites marques d'identification, et - un senseur (18) disposé à proximité dudit cylindre à imprimer (3) et destiné à détecter la cadence de passage desdites zones imprimantes. Rotary press according to claim 2, characterized in that identification marks are arranged on said areas to be overprinted and in that said detection device (15) comprises: a read head (17) disposed along said working path between said traction cylinder (13) and the printing cylinder (3) and intended to read said identification marks, and - A sensor (18) disposed near said printing cylinder (3) and intended to detect the rate of passage of said printing areas. Rotative selon la revendication 2, caractérisée en ce qu'on prévoit des moyens de liaison mécanique (19) entre ledit premier groupe moteur (11) et ledit deuxième groupe moteur (14).Rotary press according to claim 2, characterized in that mechanical connection means (19) are provided between said first motor group (11) and said second motor group (14). Rotative selon la revendication 2, caractérisée en ce que ledit premier groupe moteur (11) comporte des moyens mécaniques de sélection de la vitesse de rotation dudit cylindre à imprimer (3).Rotary press according to claim 2, characterized in that said first motor unit (11) comprises mechanical means for selecting the speed of rotation of said printing cylinder (3). Rotative selon la revendication 2, caractérisée en ce que ledit deuxième groupe moteur (14) comporte un motoréducteur.Rotary according to claim 2, characterized in that said second motor group (14) comprises a geared motor. Rotative selon la revendication 4, caractérisée en ce que lesdits moyens de liaison mécanique (19) comportent un joint de Cardan (20) engagé audit premier groupe moteur (11) et un différentiel (21) interposé entre ledit joint de Cardan (20) et ledit deuxième groupe moteur (14).Rotary press according to claim 4, characterized in that said mechanical connection means (19) comprise a Cardan joint (20) engaged to said first drive unit (11) and a differential (21) interposed between said Cardan joint (20) and said second motor unit (14). Rotative selon la revendication 2, caractérisée en ce que lesdits moyens de contrôle (12) comportent un cylindre auxiliaire de contrôle (21) disposé à proximité dudit cylindre de traction (13) et un moteur électrique (22a) destiné à entraîner ledit cylindre auxiliaire de contrôle (22), ledit moteur électrique (22a) pouvant être activé par lesdits signaux d'activation envoyés par ladite unité de traitement (16).Rotary press according to claim 2, characterized in that said control means (12) comprise a auxiliary control cylinder (21) disposed near said traction cylinder (13) and an electric motor (22a) intended to drive said auxiliary control cylinder (22), said electric motor (22a) being able to be activated by said signals activation sent by said processing unit (16). Rotative selon la revendication 8, caractérisée en ce qu'on prévoit des moyens de liaison mécanique (19) entre ledit moteur électrique (22a) et ledit premier groupe moteur (11).Rotary press according to claim 8, characterized in that mechanical connection means (19) are provided between said electric motor (22a) and said first motor group (11). Rotative selon la revendication 1, caractérisée en ce que lesdits moyens de commande (10) comportent un premier groupe moteur (11) relié audit cylindre à imprimer (3) et en ce que lesdits moyens de contrôle (12) comportent: - un dispositif de détection (15) destiné à détecter des déphasages entre lesdites zones à surimprimer et lesdites zones imprimantes, - un cylindre auxiliaire de contrôle (22) disposé en amont dudit cylindre à imprimer (3), - un moteur électrique (22a) destiné à entraîner ledit cylindre auxiliaire de contrôle (22), et - une unité (16) de traitement de signaux, destinée à recevoir des signaux de déphasage dudit dispositif de détection (15) et à envoyer des signaux d'activation audit moteur électrique (22a). A rotary press according to claim 1, characterized in that said control means (10) comprise a first engine group (11) connected to said printing cylinder (3) and in that said control means (12) comprise: - a detection device (15) intended to detect phase shifts between said areas to be overprinted and said printing areas, an auxiliary control cylinder (22) disposed upstream of said printing cylinder (3), an electric motor (22a) intended to drive said auxiliary control cylinder (22), and - a signal processing unit (16), intended to receive phase shift signals from said detection device (15) and to send activation signals to said electric motor (22a). Rotative selon la revendication 10, caractérisée en ce qu'on prévoit des moyens de liaison mécanique (19) entre ledit moteur électrique (22a) et ledit premier groupe moteur (11).A rotary press according to claim 10, characterized in that mechanical connection means (19) are provided between said electric motor (22a) and said first motor group (11).
EP19910830134 1990-06-29 1991-04-09 Rotary printing press for overprinting Withdrawn EP0464001A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2081790 1990-06-29
IT02081790A IT1249030B (en) 1990-06-29 1990-06-29 ROTARY COIL MACHINE FOR OVERPRINTING

Publications (2)

Publication Number Publication Date
EP0464001A2 true EP0464001A2 (en) 1992-01-02
EP0464001A3 EP0464001A3 (en) 1992-09-30

Family

ID=11172503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910830134 Withdrawn EP0464001A3 (en) 1990-06-29 1991-04-09 Rotary printing press for overprinting

Country Status (5)

Country Link
EP (1) EP0464001A3 (en)
JP (1) JPH04232745A (en)
ES (1) ES2029765A6 (en)
FR (1) FR2663882B1 (en)
IT (1) IT1249030B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10960659B2 (en) * 2014-07-02 2021-03-30 Rotoprint Sovrastampa S.R.L. System and method for overprinting on packages and/or containers of different formats

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10723118B2 (en) 2013-10-11 2020-07-28 Rotoprint Sovrastampa S.R.L. System and method for overprinting on flexible support on reel with capability of relief printing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084698A1 (en) * 1982-01-26 1983-08-03 John Henry Morgan Apparatus for and method of varying the position of an operation performed on an elongate moving element
EP0095437A1 (en) * 1982-05-17 1983-11-30 Asea Ab Registration control device for a printing machine
EP0110669A1 (en) * 1982-11-24 1984-06-13 Xerox Corporation Web tracking system
EP0226166A1 (en) * 1985-12-12 1987-06-24 Werner Kammann Maschinenfabrik GmbH. Method and device for positioning an intermittently moving conveyor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084698A1 (en) * 1982-01-26 1983-08-03 John Henry Morgan Apparatus for and method of varying the position of an operation performed on an elongate moving element
EP0095437A1 (en) * 1982-05-17 1983-11-30 Asea Ab Registration control device for a printing machine
EP0110669A1 (en) * 1982-11-24 1984-06-13 Xerox Corporation Web tracking system
EP0226166A1 (en) * 1985-12-12 1987-06-24 Werner Kammann Maschinenfabrik GmbH. Method and device for positioning an intermittently moving conveyor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10960659B2 (en) * 2014-07-02 2021-03-30 Rotoprint Sovrastampa S.R.L. System and method for overprinting on packages and/or containers of different formats

Also Published As

Publication number Publication date
JPH04232745A (en) 1992-08-21
IT1249030B (en) 1995-02-11
EP0464001A3 (en) 1992-09-30
IT9020817A1 (en) 1991-12-29
FR2663882A1 (en) 1992-01-03
ES2029765A6 (en) 1992-09-01
IT9020817A0 (en) 1990-06-29
FR2663882B1 (en) 1997-01-03

Similar Documents

Publication Publication Date Title
EP1132203B1 (en) Method and means for automatically preregistering rotary printing machines
CN102098932B (en) For the preparation of the apparatus and method of smoking product
EP0313541B1 (en) Process for controlling and maintaining register of a web of preprinted material with initial automatic register adjustment
FR2755900A1 (en) MULTI-COLOR INK-JET PRESS, METHOD FOR SYNCHRONIZING SUCH A PRESS, AND PRINTED PRODUCT OBTAINED BY USING SUCH PRESS
FR2475495A1 (en) APPARATUS FOR CONTROLLING PRINTING LABELS, LABELS AND METHOD FOR CONTROLLING SUCH APPARATUS
FR2581029A1 (en) LABEL DISPENSER AND POSTAGE MACHINE EQUIPPED WITH THE DISPENSER
EP2771188B1 (en) Setup method and arrangement for a printing machine
FR2553032A1 (en) FLEXOGRAPHIC PRINTING PRESS WITH DIRECT TAPPING AND PACKAGING MATERIAL THUS PRINTED
FR2624432A1 (en) imprinter
FR2556280A1 (en) PRINTING PRESS WITH AUTOMATIC SPEED ADJUSTMENT DEVICE
EP2619012B1 (en) Method and arrangement for registering colors for a printing machine
JP2002179302A (en) Flying web changer for web press
FR2656088A1 (en) SURFACE CONTROL APPARATUS FOR SUBSTANCES.
EP0464001A2 (en) Rotary printing press for overprinting
CA2083183A1 (en) Method and apparatus for formation and holding of a loose starting flap of a replacement paper roll, typically a paper roll in a printing machine roll changer
US4523522A (en) Rotary printing machine with web tear clearing system
FR2489748A1 (en) Rotary printing machine with sheet stack marker - has opto-electronic sensor(s) between sheet supply and support controlling marker(s) via evaluation circuit
FR2910374A1 (en) METHOD FOR CONTROLLING A ROTARY PRESS AND ROTATING PRESS
JPH11508524A (en) Placement mechanism and method for linerless label webs
EP0726143A1 (en) Apparatus for invalidating images printed on supports
FR2522863A1 (en) METHOD AND APPARATUS FOR RECOGNIZING TRACKING MARKS FOR POSITIONING A READING WINDOW
FR2760402A1 (en) METHOD FOR CUTTING A STRIP OF PRINTING MATERIAL IN THE LONGITUDINAL DIRECTION ACCORDING TO SECTIONS AND CUTTING DEVICE FOR USE THEREFOR
EP0702335A1 (en) System for controlling an ink jet head in a franking machine by printing the images in a stepped manner
FR2778868A1 (en) DEVICE FOR AVOIDING DAMAGE TO PRINTING MACHINES
US10723118B2 (en) System and method for overprinting on flexible support on reel with capability of relief printing

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK GB GR LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK GB GR LI LU NL SE

17P Request for examination filed

Effective date: 19930316

17Q First examination report despatched

Effective date: 19930915

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19940805