EP0034522B1 - Machine with a short set-up time for the manufacture of cardboard boxes - Google Patents

Machine with a short set-up time for the manufacture of cardboard boxes Download PDF

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Publication number
EP0034522B1
EP0034522B1 EP81400174A EP81400174A EP0034522B1 EP 0034522 B1 EP0034522 B1 EP 0034522B1 EP 81400174 A EP81400174 A EP 81400174A EP 81400174 A EP81400174 A EP 81400174A EP 0034522 B1 EP0034522 B1 EP 0034522B1
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EP
European Patent Office
Prior art keywords
printing
machine
cardboard
axis
plate
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.)
Expired
Application number
EP81400174A
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German (de)
French (fr)
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EP0034522A1 (en
Inventor
Jean-Jacques Barny
Bernard Capdeboscq
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.)
Martin SA
Original Assignee
Martin SA
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 Martin SA filed Critical Martin SA
Publication of EP0034522A1 publication Critical patent/EP0034522A1/en
Application granted granted Critical
Publication of EP0034522B1 publication Critical patent/EP0034522B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/11—Machines with modular units, i.e. with units exchangeable as a whole

Definitions

  • the present insertion relates to machines for forming and printing cardboard boxes and relates more particularly to a machine of this type on which it is possible to make a change of plate on the printers without loss of time detrimental to the performance of the machine.
  • the machine of the invention does not have the drawbacks of the aforementioned devices. It is of the type (for example GB-A-637 333) according to which the printer modules are equipped with means allowing lateral translation either of the plate cylinder alone, or of the assembly formed by said plate cylinder and its device inking, and it is characterized in that it is furthermore provided with retractable means for driving the cardboard capable of being put in place when said plate cylinder is retracted laterally so as to continue to perform the driving function cardboard that it provided before its lateral retraction.
  • the elements 1, 6 and 7 are conventional elements for this kind of machine so that we will not give a more detailed description. On the other hand, particular attention will be paid, with the aid of all of FIGS. 1 to 6, to the description of the printing elements which are particularly concerned with the invention.
  • each printing element (4, 5) comprises two printing modules (8, 9 and 10, 11) each provided with a counterpart cylinder (12, 13, 14, 15), a plate cylinder (16, 17, 18, 19) and a conventional inking device (20, 21, 22, 23).
  • each assembly consisting of a plate cylinder and its inking system can be moved laterally, by means of rollers 24 and associated rails 25 hollowed out in the base 26 of each printing element.
  • Figures 1 to 3 show, by way of example, the second of these assemblies counted in the upstream-downstream direction, retracted by lateral translation, and we will therefore now give a more precise description thereof, it being understood that this description also applies to the other three.
  • the printing module considered 9 comprises a structure constituted by lateral frames 27 and 28.
  • a conventional set of gears with toothed wheels 29 makes it possible, in a manner known per se, to communicate with the various cylinders and drive shafts (3, 30, 31, 32, 33, 34, 35, 36) or printing (16, 18, 19) a movement in synchronism with the other elements of the cardboard processing line.
  • the removable assembly constituted by the plate cylinder 17 and its conventional inking system shown diagrammatically at 21 is mounted on a separate rigid structure, comprising the uprights 37 and 38, and which can pass through the frame 28 which has an opening 39 Consequently.
  • the structure (37, 38) is provided with the lateral displacement rollers 24 mentioned above.
  • each printing element (4, 5) further comprises, directly following, in the direction of scrolling upstream-downstream of the carton, to each printing module (8, 9 and 10, 11), a pair of 'shafts (31-31 a, 33-33a and 35-35a, 36-36a) each lined with cardboard drive discs 40 (see also Figures 5 and 6).
  • Each of the lower shafts (31, 33, 35, 36) comprises at each end an oscillating lever 41 on which is mounted another drive shaft such as 32, furnished with disks 42 identical to the disks 40, and drives in rotation by the main shaft such as 33 using a conventional belt transmission 43.
  • the parallel shafts (33, 32) are spaced apart by a length equal to the longitudinal component the distance separating the axis respectively of the first shaft (33) or its partner (33a) from the axis of the previous printing roller (17) or its counterpart (13).
  • each plate holder cylinder, such as 16, and its inking system, such as 20, are made laterally removable, which is preferable when it is desired to make a washing the inking system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Making Paper Articles (AREA)

Description

La présente invertion se rapporte aux machines de façonnage et impression de caisses en carton et concerne plus particulièrement une machine de ce type sur laquelle il est possible d'effectuer un changement de cliché sur les imprimeuses sans perte de temps préjudiciable au rendement de la machine.The present insertion relates to machines for forming and printing cardboard boxes and relates more particularly to a machine of this type on which it is possible to make a change of plate on the printers without loss of time detrimental to the performance of the machine.

Dans un groupe de production de caisses en carton ondulé, les séries de caisses identiques sont en général courtes, de sorte qu'une perte de production importante est due au temps nécessaire pour les différents réglages de changement de format et d'impression entre deux différentes séries de caisses.In a production group of corrugated boxes, the series of identical boxes are generally short, so that a significant production loss is due to the time required for the different settings for format change and printing between two different series of cases.

Certains constructeurs présentent des réglages automatisés au maximum sur les machines de pliage et d'encochage du carton, mais il est néanmoins nécessaire de consacrer un temps important à la mise en place des clichés sur les imprimeuses et au lavage de leurs cylindres encreurs. Dans le cas des imprimeuses flexographiques à impression par le haut, on palie cet inconvénient en profitant, lorsque c'est possible, du passage d'une série de caisses devant être imprimées avec un nombre de couleurs restreint, par exemple à une au lieu de deux, pour débrayer les cylindres poorte-cliché des modules imprimeurs non utilisés et effectuer la pose de nouveaux clichés sur ceuxci pendant que la machine fonctionne avec ladite série à nombre de couleurs restreint.Some manufacturers have maximum automatic settings on the folding and cardboard notching machines, but it is nevertheless necessary to devote a significant amount of time to setting up the plates on the printers and washing their ink cylinders. In the case of top-printing flexographic printers, this disadvantage is overcome by taking advantage, where possible, of the passage of a series of cases to be printed with a limited number of colors, for example one instead of two, to disengage the cliché cylinders of the unused printing modules and to install new clichés thereon while the machine is operating with said series with a limited number of colors.

Une telle solution n'est malheureusement, par manque de place et de possibilité d'accès, pas applicable aux imprimeuses flexographiques à impression par le bas, dont l'utilisation s'avère de plus en plus souhaitable avec le développement des machines entièrement automatiques.Unfortunately, such a solution is not, due to lack of space and possibility of access, applicable to bottom-printing flexographic printers, the use of which is becoming more and more desirable with the development of fully automatic machines.

Une solution que l'on pourrait envisager pour résoudre ce problème serait une construction modulaire avec déplacement latéral complet des éléments imprimeurs non utilisés pendant le passage de la série à nombre de couleurs restreint. On créerait alors un ou plusieurs trous dans la machine, qu'il serait nécessaire de combler en rapprochant tous les éléments restant de la machine de manière à ce qu'ils soient accolés. Une telle solution aurait pour inconvénient de modifier constamment la longueur de la machine et, en outre, utiliserait beaucoup de place au sol car il faudrait déplacer latéralement chaque élément imprimeur complet, comprenant en particulier ses armoires électriques, et constituant donc un ensemble assez encombrant.One solution that could be envisaged to solve this problem would be a modular construction with complete lateral displacement of the printing elements not used during the passage of the series with a limited number of colors. One would then create one or more holes in the machine, which it would be necessary to fill by bringing all the remaining elements of the machine together so that they are joined. Such a solution would have the drawback of constantly changing the length of the machine and, in addition, would use a lot of floor space since it would be necessary to move laterally each complete printing element, comprising in particular its electrical cabinets, and therefore constituting a fairly bulky assembly.

La machine de l'invention ne présente pas les inconvénients des dispositifs précités. Elle est du type (par exemple GB-A-637 333) selon lequel les modules imprimeurs sont équipés de moyens permettant une translation latérale soit du cylindre porte-cliché seul, soit de l'ensemble constitué par ledit cylindre porte-cliché et son dispositif d'encrage, et elle est caractérisée en ce qu'elle est en outre munie de moyens escamotables d'entraînement du carton susceptibles dêtre mis en place lorsque ledit cylindre porte-cliché est escamoté latéralement de manière à continuer à assurer la fonction d'entrainement du carton que celuici assurait avant son escamotage latéral.The machine of the invention does not have the drawbacks of the aforementioned devices. It is of the type (for example GB-A-637 333) according to which the printer modules are equipped with means allowing lateral translation either of the plate cylinder alone, or of the assembly formed by said plate cylinder and its device inking, and it is characterized in that it is furthermore provided with retractable means for driving the cardboard capable of being put in place when said plate cylinder is retracted laterally so as to continue to perform the driving function cardboard that it provided before its lateral retraction.

L'invention sera mieux comprise à l'aide de la description suivante d'un exemple de réalisation, en référence aux dessins annexés dans lesquels:

  • - la figure 1 représente schématiquement et en vue latérale une machine de façonnage et impression de caisses en carton conforme à l'invention.
  • - la figure 2 est une vue schématique partielle de dessus de la machine de la figure 1.
  • - la figure 3 est une vue schématique transversale d'un des modules imprimeurs avec son ensemble cylindre porte-cliché escamoté latéralement, en position »sorti«.
  • - la figure 4 est une vue schématique transversale du module de la figure 3, avec son ensemble porte-cliché en position »rentré«, ou de travail.
  • - la figure 5 est une vue transversale partielle et schématique d'un dispositif escamotable d'entraînement du carton, selon la direction AA de la figure 1.
  • - la figure 6 est un détail de la figure 1, montrant, en vue latérale, le fonctionnement d'un desdits dispositifs escamotables d'entraînement du carton.
The invention will be better understood using the following description of an exemplary embodiment, with reference to the accompanying drawings in which:
  • - Figure 1 shows schematically and in side view a machine for shaping and printing cardboard boxes according to the invention.
  • - Figure 2 is a partial schematic top view of the machine of Figure 1.
  • - Figure 3 is a schematic transverse view of one of the printing modules with its plate cylinder assembly retracted laterally, in the "extended" position.
  • - Figure 4 is a schematic transverse view of the module of Figure 3, with its plate holder assembly in the "retracted" position, or working.
  • FIG. 5 is a partial and schematic transverse view of a retractable device for driving the carton, in the direction AA of FIG. 1.
  • - Figure 6 is a detail of Figure 1, showing, in side view, the operation of one of said retractable cardboard drive devices.

On reconnaît, sur l'élévation latérale très schématique de la figure 1, les premiers éléments d'une machine en ligne de façonnage et impression de caisses en cargon ondulé comprenant:

  • - un élément introducteur 1 sur lequel on a figuré le paquet 2 de plaques de carton à façonner et une des paires de rouleaux entraîneurs 3.
  • - un premier élément imprimeur 4 pouvant être à deux couleurs.
  • - un second élément imprimeur 5 pouvant également être à deux couleurs.
  • - un élément d'encochage 6.
  • - un élément de pliage 7.
We recognize, on the very schematic side elevation of FIG. 1, the first elements of an on-line machine for shaping and printing of corrugated cargo boxes comprising:
  • - an introducer element 1 on which the packet 2 of cardboard plates to be shaped has been shown and one of the pairs of driving rollers 3.
  • - A first printing element 4 can be two colors.
  • - A second printing element 5 can also be in two colors.
  • - a notching element 6.
  • - a folding element 7.

Les éléments 1, 6 et 7 sont des éléments classiques pour ce genre de machine de sorte que l'on n'en donnera pas de description plus détaillée. Par contre, on s'attachera particulièrement, à l'aide de l'ensemble des figures 1 à 6, à la description des éléments imprimeurs qui sont particulièrement concernés par l'invention.The elements 1, 6 and 7 are conventional elements for this kind of machine so that we will not give a more detailed description. On the other hand, particular attention will be paid, with the aid of all of FIGS. 1 to 6, to the description of the printing elements which are particularly concerned with the invention.

Comme on le voit en particulier sur les figures 1 à 4, chaque élément imprimeur (4, 5) comporte deux modules imprimeurs (8, 9 et 10, 11) munis chacun d'un cylindre contre-partie (12, 13, 14, 15), d'un cylindre porte-cliché (16, 17, 18, 19) et d'un dispositif d'encrage classique (20, 21, 22, 23).As seen in particular in FIGS. 1 to 4, each printing element (4, 5) comprises two printing modules (8, 9 and 10, 11) each provided with a counterpart cylinder (12, 13, 14, 15), a plate cylinder (16, 17, 18, 19) and a conventional inking device (20, 21, 22, 23).

Par ailleurs, chaque ensemble constitué par un cylindre porte-cliché et son système d'encrage est déplaçable latéralement, grâce à des galets 24 et des rails associés 25 creusés dans le socle 26 de chaque élément imprimeur. Les figures 1 à 3 montrent, à titre d'exemple, le second de ces ensembles compté dans le sens amont-avàl, escamoté par translation latérale, et on donnera donc maintenant une description plus précise de celui-ci, étant bien entendu que cette description s'applique également aux trois autres.Furthermore, each assembly consisting of a plate cylinder and its inking system can be moved laterally, by means of rollers 24 and associated rails 25 hollowed out in the base 26 of each printing element. Figures 1 to 3 show, by way of example, the second of these assemblies counted in the upstream-downstream direction, retracted by lateral translation, and we will therefore now give a more precise description thereof, it being understood that this description also applies to the other three.

De module imprimeur considéré 9 comporte une structure constituée par des bâtis latéraux 27 et 28. Un ensemble classique d'engrenages à roues dentées 29 permet, de manière connue en soi, de communiquer aux différents cylindres et arbres d'entraînement (3, 30, 31, 32, 33, 34, 35, 36) ou impression (16, 18, 19) un mouvement en synchronisme avec les autres éléments de la ligne de traitement du carton.Of the printing module considered 9 comprises a structure constituted by lateral frames 27 and 28. A conventional set of gears with toothed wheels 29 makes it possible, in a manner known per se, to communicate with the various cylinders and drive shafts (3, 30, 31, 32, 33, 34, 35, 36) or printing (16, 18, 19) a movement in synchronism with the other elements of the cardboard processing line.

L'ensemble amovible constitué par le cylindre porte-cliché 17 et son système d'encrage classique schématisé en 21 est monté sur une structure séparée rigide, comportant les montants 37 et 38, et pouvant passer au travers du bâti 28 qui présente une ouverture 39 en conséquence. La structure (37, 38) est munie des galets de déplacement latéral 24 mentionnés précédemment.The removable assembly constituted by the plate cylinder 17 and its conventional inking system shown diagrammatically at 21 is mounted on a separate rigid structure, comprising the uprights 37 and 38, and which can pass through the frame 28 which has an opening 39 Consequently. The structure (37, 38) is provided with the lateral displacement rollers 24 mentioned above.

Conformément à l'invention, chaque élément imprimeur (4, 5) comporte en outre, faisant directement suite, dans le sens de défilement amont-aval du carton, à chaque module imprimeur (8, 9 et 10, 11), une paire d'arbres (31-31 a, 33-33a et 35-35a, 36-36a) garnis chacun de disques 40 d'entraînement du carton (voir aussi les figures 5 et 6). Chacun des arbres inférieurs (31, 33, 35, 36) comporte à chaque extrémité un levier oscillant 41 sur lequel est monté un autre arbre d'entraînement tel que 32, garni de disques 42 identiques aux disques 40, et entraine en rotation par l'arbre principal tel que 33 à l'aide d'une transmission classique à courroie 43. Comme on le voit bien sur les figures 1 et 6, les arbres parallèles (33, 32) sont distants d'une longueur égale à la composante longitudinale de la distance séparant l'axe respectivement du premier arbre (33) ou de son associé (33a) de l'axe du rouleau d'impression précédent (17) ou de sa contre-partie (13).According to the invention, each printing element (4, 5) further comprises, directly following, in the direction of scrolling upstream-downstream of the carton, to each printing module (8, 9 and 10, 11), a pair of 'shafts (31-31 a, 33-33a and 35-35a, 36-36a) each lined with cardboard drive discs 40 (see also Figures 5 and 6). Each of the lower shafts (31, 33, 35, 36) comprises at each end an oscillating lever 41 on which is mounted another drive shaft such as 32, furnished with disks 42 identical to the disks 40, and drives in rotation by the main shaft such as 33 using a conventional belt transmission 43. As can be seen in Figures 1 and 6, the parallel shafts (33, 32) are spaced apart by a length equal to the longitudinal component the distance separating the axis respectively of the first shaft (33) or its partner (33a) from the axis of the previous printing roller (17) or its counterpart (13).

De la sorte, lorsqu'un des cylindres porte-cliché tel que 17 est escamoté latéralement et n'assure donc plus sa fonction auxiliaire d'entraînement du carton, il suffit de faire pivoter, à l'aide de deux vérins pneumatiques 44 par exemple, les leviers 41 et donc l'arbre 32 de 90 degrés, pour que l'arbre 32 se trouve en position convenable pour assurer l'entraînement des feuilles de carton 45 par pincement de celles-ci avec le cylindre contre-partie 13.In this way, when one of the plate cylinders such as 17 is retracted laterally and therefore no longer fulfills its auxiliary function of driving the cardboard, it suffices to pivot, using two pneumatic cylinders 44 for example , the levers 41 and therefore the shaft 32 by 90 degrees, so that the shaft 32 is in a suitable position for driving the cardboard sheets 45 by pinching them with the counterpart cylinder 13.

La ventrée de l'ensemble amovible (17, 21) s'effectue de la façon suivante (voir en particulier les figures 3 et4):

  • Après avoir, par rétraction des tiges des vérins 44, escamoté l'arbre auxiliaire 32 vers le bas, on entraîne en rotation, à l'aide d'un moteur auxiliaire 46, le cylindre 17 et son élément femelle d'accouplement 47, et l'on déplace l'ensemble vers la droite à l'aide des galets de roulement 24. Lorsque l'élément femelle 47 tombe en concordance avec l'élément d'accouplement mâle 48 entraîné par l'intermédiaire des roues dentées 29 dont la position angulaire est préréglée en fonction des plaques à imprimer, le dispositif se verrouille automatiquement et la machine se trouve en bonne position pour la série de plaques à venir, c'est-à-dire que le cliché sera correctement positionné par rapport à la première feuille, ce qui évite les déchets et réduit les temps de réglage.
The belly of the removable assembly (17, 21) is carried out as follows (see in particular Figures 3 and 4):
  • After having retracted the rods of the cylinders 44, retracted the auxiliary shaft 32 downwards, the cylinder 17 and its female coupling element 47 are driven in rotation, using an auxiliary motor 46, and the assembly is moved to the right using the rollers 24. When the female element 47 falls in agreement with the male coupling element 48 driven by means of the toothed wheels 29 whose position angle is preset according to the plates to be printed, the device locks automatically and the machine is in a good position for the series of plates to come, that is to say that the plate will be correctly positioned in relation to the first sheet , which avoids waste and reduces setting times.

Dans l'exemple qui vient d'être décrit, on rendait amovible latéralement à la fois chaque cylindre porte-cliché, tel que 16, et son système d'encrage, tel que 20, ce qui est préférentiel lorsque l'on désire faire un lavage du système d'encrage. On peut néanmoins. procéder à la translation latérale du cylindre porte-cliché seul en le faisant simplement glisser sur des rails (49, 50) prévus à cet effet.In the example which has just been described, each plate holder cylinder, such as 16, and its inking system, such as 20, are made laterally removable, which is preferable when it is desired to make a washing the inking system. We can nevertheless. proceed to the lateral translation of the plate cylinder alone by simply sliding it on rails (49, 50) provided for this purpose.

Claims (2)

1. Machine for making and printing cardboard boxes, the printing modules (8,9,10,11) of which are equipped with means (49,50,24,25) allowing laterial translation either of the plate-holder cylinder only or of the assembly consisting of the said plate-holder cylinder and its inking device, characterised in that it is also provided with retractable cardboard-driving means (32, 42) which are capable of being put in place when the said plate-holder cylinder (17) is retracted laterally, so as to continue to perform the cardboard-driving function which the latter performed before it was retracted laterally.
2. Machine for making and printing cardboard boxes according to Claim 1, characterised in that the said retractable drive means comprise a drive device (32) located at the end of at least one oscillating lever (41), the axis of rotation of which merges with that of the lower drive device (33) following the printing module in question (9) and at a distance from the said axis which is equal to the longitudinal component of the distance separating respectively this axis (33) or its associated axis (33a) from the axis of the preceding printing roller (17) or of its counterpart (13).
EP81400174A 1980-02-06 1981-02-04 Machine with a short set-up time for the manufacture of cardboard boxes Expired EP0034522B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8002601A FR2474952A1 (en) 1980-02-06 1980-02-06 CARDBOARD CASING MACHINE WITH SHORT TIME ADJUSTMENT
FR8002601 1980-02-06

Publications (2)

Publication Number Publication Date
EP0034522A1 EP0034522A1 (en) 1981-08-26
EP0034522B1 true EP0034522B1 (en) 1983-05-25

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EP81400174A Expired EP0034522B1 (en) 1980-02-06 1981-02-04 Machine with a short set-up time for the manufacture of cardboard boxes

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DE (1) DE3160333D1 (en)
FR (1) FR2474952A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160202A (en) * 1982-01-15 1983-09-22 ザ・ミ−ド・コ−ポレ−シヨン Packer
US4449450A (en) * 1982-07-28 1984-05-22 S.A. Martin Retractable propulsion apparatus for cardboard box printing machine
JPS60151037A (en) * 1984-01-20 1985-08-08 三菱重工業株式会社 Single facer
DE60002620T2 (en) * 1999-02-18 2003-11-27 Ward, Inc. Flexographic printing machine and flexographic printing process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647613A (en) * 1900-01-01
DE561429C (en) * 1928-12-20 1932-10-14 Harris Seybold Potter Company Paper web conveyor device for printing machines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB637333A (en) * 1946-10-23 1950-05-17 Champlain Company Inc Enclosed fountain gravure press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647613A (en) * 1900-01-01
DE561429C (en) * 1928-12-20 1932-10-14 Harris Seybold Potter Company Paper web conveyor device for printing machines

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FR2474952B1 (en) 1983-10-07
FR2474952A1 (en) 1981-08-07
DE3160333D1 (en) 1983-07-07
EP0034522A1 (en) 1981-08-26

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