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EP0234456B2 - Dispositif d'impression complémentaire - Google Patents
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EP0234456B2 - Dispositif d'impression complémentaire - Google Patents

Dispositif d'impression complémentaire Download PDF

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Publication number
EP0234456B2
EP0234456B2 EP87102092A EP87102092A EP0234456B2 EP 0234456 B2 EP0234456 B2 EP 0234456B2 EP 87102092 A EP87102092 A EP 87102092A EP 87102092 A EP87102092 A EP 87102092A EP 0234456 B2 EP0234456 B2 EP 0234456B2
Authority
EP
European Patent Office
Prior art keywords
printing
cylinders
cylinder
printing device
carriage
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 - Lifetime
Application number
EP87102092A
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German (de)
English (en)
Other versions
EP0234456A3 (en
EP0234456A2 (fr
EP0234456B1 (fr
Inventor
Mario Forno
Mario Saterini
Gianfranco Gibellino
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.)
Officine Meccaniche Giovanni Cerutti SpA
Original Assignee
Officine Meccaniche Giovanni Cerutti SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Officine Meccaniche Giovanni Cerutti SpA filed Critical Officine Meccaniche Giovanni Cerutti SpA
Priority to AT87102092T priority Critical patent/ATE80833T1/de
Publication of EP0234456A2 publication Critical patent/EP0234456A2/fr
Publication of EP0234456A3 publication Critical patent/EP0234456A3/de
Application granted granted Critical
Publication of EP0234456B1 publication Critical patent/EP0234456B1/fr
Publication of EP0234456B2 publication Critical patent/EP0234456B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • 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
    • B41P2217/13—Machines with double or multiple printing units for "flying" printing plates exchange

Definitions

  • the above invention relates to an auxiliary printing unit, e.g. an additional flexographic printing unit.
  • Devices of this type are also referred to as "imprinters" and have two printing cylinders for receiving the printing plates, which alternately and selectively serve to create additional impressions in a paper web or similar material which is moved around a counterpressure roller.
  • additional printing devices e.g. in the form of an additional flexographic printing device of the type described, are mostly used in rotary printing presses, where such additional devices are arranged at the outlet of the main machine.
  • additional printing devices imprinters
  • Each printing cylinder is e.g. an anilox cylinder and a rubber roller, which ensures perfect paint application.
  • One of the printing cylinders, which has the printing plates, is selectively connected to the paper web, which moves around a peripheral part of the fixedly arranged impression cylinder. This creates the opportunity to introduce additional impressions into the passing paper web, e.g. to be provided only for a special edition or to be printed only in a specific local edition of the publication.
  • the disadvantage of the known imprinters of this type is that the speed of rotation of the printing cylinders, the diameter of which can be changed, can be perfectly synchronized with the rotational speed of the impression cylinder, around which the material strip to be printed moves and which is driven by the main drive system of the printing press. For this reason, in the known devices of the type mentioned, when changing the diameter of the printing cylinders that receive the printing plates, it is necessary to dismantle a considerable number of drive sprockets with the associated ball bearings inside the machine frame of the imprinter in order to synchronize the peripheral speed by exchanging this To achieve gears and thus adapt the speed of rotation of the printing cylinders that receive the printing plates to the speed of rotation of the impression cylinder.
  • GB-A-184987 shows a printing device in which the material web to be printed can optionally be brought into operative connection with an additional pressure cylinder that can be operated by hand.
  • a single ink application device is assigned to these additionally activatable printing cylinders. Only one-color printing can be carried out.
  • the additional printing cylinders are also arranged above the paper web to be printed, which entails the risk of contamination of the paper web and damage to the same when the additional printing cylinders are replaced.
  • step GB-A-2060494 a device has become known which is to be regarded as a different species.
  • This device is not an additional printing unit with which different print images could be produced in a single paper web, but rather a device which is equipped with a printing cylinder. with which, after carrying out a swivel movement, a first material web intended for the test printing or a second material spell intended for the actual printing process can be brought into operative connection with the printing cylinder.
  • the known device is therefore not used for the optional printing of a single paper web using two different printing cylinders, but it is a device in which optionally under Two different material webs can be printed using a single printing cylinder.
  • the object of the above invention is to avoid the disadvantages of the prior art and to propose a new additional printing device (imprinter) of the type mentioned, which enables a very rapid exchange of the printing cylinders with the printing plates, and allows the use of printing cylinders which have different diameters that a quick start of the printing process is possible, and no mechanical intervention is necessary, and that there is also the possibility to carry out a simple registration and adjustment, as well as a quick start of the printing cylinder.
  • imprinter imprinter
  • the ends of the impression cylinder are mounted in the lower end of swivel arms, the upper ends of which are connected to a horizontally arranged swivel axis, and the swivel axis of each swivel arm is connected to a sled-like device, and each sled-like device opposite the Side parts of the machine frame is movably mounted up and down, and the impression cylinder is arranged between two underlying, horizontally arranged and interchangeable printing cylinders that receive printing plates.
  • the side parts of the machine frame have lateral recesses which are accessible from the outside of the machines and form bearing seats for receiving the bearing journals with the associated ball bearings of the pressure cylinders.
  • Each carriage has a swivel support below the printing cylinder, which receives the printing plates, which is arranged pivotably about a horizontally arranged axis, and has an inking unit which, e.g. consists of an ink coating cylinder having a rubber jacket which is operatively connected to an anilox cylinder which is assigned to the printing cylinder which receives the printing plates.
  • an inking unit which, e.g. consists of an ink coating cylinder having a rubber jacket which is operatively connected to an anilox cylinder which is assigned to the printing cylinder which receives the printing plates.
  • the device (imprinter) according to the invention has two laterally arranged machine frames or cheeks, all of which are designated by 1.
  • the paper tape 2 is guided with the aid of a compensating roller 3 and by means of guide rollers 4 and 5 around an impression cylinder 6, the paper tape moving in the direction of the arrow (f).
  • Each end of the impression cylinder 6 is designed as a journal 6a, which is received by an arm 7, which is pivotable about a horizontally arranged pivot axis 8.
  • each pivoting arm 7 On each side of each pivoting arm 7 with the machine frame 13 there is a hydraulic, controllable piston-cylinder unit 51 or 52 , arranged.
  • the piston rods of each piston-cylinder unit act on the corresponding side surface of the corresponding swivel arm 7.
  • these pivot arms 7 stop and adjusting screws 53 or 54 are assigned, as is shown schematically in FIG. 1. These screws serve as registerable stops.
  • Each swivel arm 7 is received at one end (hub) by a slide 10 which is arranged to be displaceable in the vertical direction and is received by parallel guides 11 for this purpose.
  • a controllable drive motor not shown
  • a hydraulic cylinder or a pneumatic cylinder P
  • the slide 10 can be moved up or down by a small, limited amount, as shown by the arrow (g) .
  • At least one guide 11 is assigned a tensioning device, for example a hydraulic locking device, which advantageously consists of a number of hydraulic pistons 12 which slide 10 in the desired Block the position between the guides 11.
  • the position taken is from Diameter of the printing cylinder 6 receiving the printing plates depending.
  • said piston (P) advantageously a pneumatic piston
  • the slide 10 and thus the cylinder can be given a small stroke movement in the direction of the arrow (g).
  • This stroke movement corresponds to the width of a window-like opening 55, which is incorporated in the end of a threaded rod 56.
  • the window-like opening 55 is connected to a cylindrical pin 67 which is connected in one piece to the slide 10.
  • the cylinder pin can carry out an unimpeded displacement movement in the window-like opening 55.
  • the rod 56 is advantageously designed as a rod which has a threaded end 57 which is operatively connected to an internal thread 58 of a ring gear 59 which is rotatably provided in the interior of a column 18 arranged in the center.
  • a threaded worm 60 is operatively connected to the ring gear 59, which is advantageously driven by a controllable motor (not shown), advantageously by a direct current motor.
  • the controllable motor is assigned a rotatable encoder or a similar means, in order thereby to be able to precisely determine the position of the counter-pressure cylinder 6 relative to the cylinders 16s and 16d.
  • Each side wall 13 of the imprinter 11 has, under the impression cylinder 6, receiving openings 14, which enables simple insertion of the bearing journals 15 of the cylinders 16s and 16d, which are interchangeable and carry the pressure plates.
  • the pins 15 are fitted with ball bearings in a known manner and are clamped in their working position, e.g. using known clamping bracket 17, which can be fixed hydraulically or with mechanical clamping means.
  • the frame 1 of the additional printing device accommodates a support 18 in the center under the cylinders 6 and 16, which has parallel guides 19 on each side, which receive a corresponding movable carriage 20 and 21.
  • the slides 20 and 21 are adjustable using a threaded spindle 22 which is operatively connected to the slides 20 and 21.
  • the spindle 22 also has a lower threaded piece 61 which is operatively connected to a ring gear 62 which is rotatably mounted in the central column 18.
  • a threaded screw 63 is operatively connected to the ring gear 62, which is advantageously driven by a known DC motor (not shown), advantageously by a controllable motor, to which a measuring device, for example a rotary encoder or transducer (not shown) is assigned in order to always have the exact position of the slide 20, 21 against the column 18.
  • a measuring device for example a rotary encoder or transducer (not shown) is assigned in order to always have the exact position of the slide 20, 21 against the column 18.
  • Each carriage 20 or 21 pivots (arrows 1, m) around a pivot pin 23 or 24, which is arranged horizontally and is operatively connected to the carriage 20 or 21, on a support 25 or 26.
  • Each carriage 20, 21 also receives on its underside a drive piston 64 and 65, the rod of which acts on the body of the supports 25 and 26.
  • Each support 25 or 26 supports a known inking cylinder, which has a rubber-like casing and is identified by 27 or 28.
  • the cylinders 27 and 28 interact with other known paint application devices (not shown). The ink is applied to the cylinders 29, 30, e.g.
  • anilox cylinders which are rotatably supported by the supports 25, 26 above the cylinders 27 and 28, which are provided with a rubber jacket, and which in the direction of the arrow (l) and (m) about the axes 23, 24, which are fixedly connected to the sliding carriage 20 and 21, are pivotable.
  • the cylinders 27 and 28 are particularly pivotably received by suitable pins 68 and 69 and holding arms, to which a hydraulic piston, which is identified by 70 and 71, is assigned. Furthermore, each support 25, 26 works together with an adjusting screw 72 or 73, which makes it possible to determine the extent of the pivoting movement of the cylinder 27 or 28 relative to the cylinder 29 or 30 lying thereover.
  • the diameter of the printing cylinders 16s, 16d receiving the printing plates corresponds in a known manner to the diameter of the printing cylinders which are used in the previous rotary printing press, therefore it is advantageous to also drive the cylinders 16 via the central drive system of the rotary printing press. This ensures that these cylinders are driven with certainty at the same peripheral speed as the printing cylinders of the previous printing units.
  • Fig. 2 the starting and drive system of the cylinders is shown schematically.
  • the right machine side since the corresponding drive devices for the left machine side are identical.
  • the Counter-pressure cylinder 6 advantageously driven by an independent motor, advantageously a controllable DC motor, which is identified by 74.
  • the shaft 75 of the motor 74 can be connected to a pair of bevel gear wheels 77 via a mechanical clutch 76 or an electromagnetic clutch.
  • the bevel gears are provided to transmit the drive movement to the impression cylinder 6.
  • the cylinder 6 could also be operatively connected to the main drive system of the machine, but in this case a suitable coupling would have to be interposed.
  • the pin 78 of the cylinder 16d is operatively connected to a displaceable claw 79 which can be connected to a coupling claw 80 which has on its outside a bevel gear 81 which is operatively connected to a bevel gear 82 which is part of the main drive system of the rotary printing press.
  • the pin 78 has an extension 78a, with which a clutch disc 83 is assigned, which together with a clutch disc 84, which is operatively connected to the pin 85 of a controllable motor 86, forms a controllable clutch 83, 84, e.g. an electromagnetic clutch.
  • a gear 88 is assigned to the pin 87 of the cylinder 30, which is in operative connection with a gear 89 which is fixedly connected to the pin 90 of the cylinder 28.
  • a coupling 91 is also assigned to the pin 87, e.g. a controllable electromagnetic clutch, which makes it possible to connect the pin 87 to the shaft 92 of a controllable motor, which is identified by 93. It has proven to be advantageous to provide a kinematic connection between the pin 78 of the cylinder 30 and the pin 90 of the cylinder 28 using toothed ribs 88 and 89.
  • all motors are advantageously assigned detection means, such as encoders, rotary transducers or similar devices, the signals of which, according to the determined speed, to a sensor not shown in FIG Control panel to be forwarded.
  • the operation of the machine 1 according to the invention is as follows: the slide 10 is positioned in a predetermined position via the mechanism 57, 58, 59, 60 and the rod 56, and the cylinder 6 is fixed in position with respect to the cylinders 16s and 16d, which take up the pressure plates.
  • the slide 10 can then be moved by driving the piston P in order to make a fine adjustment of its position.
  • the possible stroke corresponds to the length of the window-like opening 55, which receives the pin 67.
  • the maximum pivoting of the arms 7, which accommodate the impression cylinder 6, is set, so that the inclined position of the arms 7 can be determined when these are moved by hydraulic cylinders 51, 52, which are used to carry out the pivoting movement To be available.
  • the slides 25 and 26 are moved upwards by actuating the device 61, 62 63.
  • the setting and stop screws 66a, 66b are then used to determine the desired pivoting path of the paint application devices when these are driven by the hydraulic cylinders 64, 65 become.
  • the maximum pivoting movement of the ink application cylinders 27, 28 is determined via the adjusting screws 72 and 73 when the corresponding bearing arms are driven via the associated hydraulic cylinders 70 and 71.
  • the procedure is as follows after the presetting has been carried out: After opening the ink supply, with the aid of the motor 93 and the toothed wheels 88 and 89 (FIG. 2), the cylinders 28 and 30 of the paint application device is rotated. These cylinders, in order to prevent the paint from drying out on the roller provided with a rubber jacket, are constantly rotated at a low speed.
  • the impression cylinder 6 is also slowly raised to the working speed with the aid of the controllable motor 74.
  • the cylinder 16d with the pressure plates is also at working speed ramped up, which corresponds to the rotational speed of the remaining cylinders of the rotary printing press.
  • the clutch 83, 84 is deactivated and the clutch 79 is connected to the clutch 80, the bevel gear 81 of which is operatively connected to the bevel gear 82, which is part of the main drive unit of the rotary printing press.
  • the cylinder 16d After the cylinder 16d has been raised to the nominal speed, it is automatically connected to the main drive system of the rotary printing press.
  • the cylinders 30 and 28 of the paint application device 26 are brought up to the desired speed by the rotational movement at a lower rotational speed, with the aid of the motor 93 (or with the aid of the motors 93, 96), and then the cylinder is actuated by actuating the hydraulic cylinder 65 30 in contact with the cylinder 16s.
  • the impression cylinder 6 was moved to the right by actuating the pivot cylinder 51 from the position shown in FIG. 1, and then, by lowering the assembly 10 by a small distance, by actuating the cylinder (P), the impression cylinder 6 and therefore also the paper web with the right cylinder 16d, which receives the printing plates, operatively connected. Then, an additional printing operation is carried out using the printing plate cylinder 16d.
  • the printing plate cylinder 16s is at a standstill, the anilox roller 29 and the cylinder 27 provided with a rubber jacket are already in a slow rotational movement and are in mutual interaction due to the actuation of the piston 70.
  • the printing ink dries out in the wells of the printing plate avoided.
  • these inking cylinders can be connected to the printing cylinder 16s which receives the printing plates.
  • the piston 64 is actuated.
  • the counter-pressure cylinder 6 is pivoted to the left by reversing the piston 51 and actuating the piston 52 (arrow K), as a result of which the paper web which runs around the counter-pressure cylinder 6 is pressed against the left-hand cylinder 16s of the printing plates, and thus an additional one Printing takes place, but for which the printing plates on the left cylinder 16s are used.
  • the cylinders 28 and 30 are removed from the cylinder 16d of the printing plates, by operating the corresponding piston 65.
  • the speed of the cylinders 28 and 30 is again reduced to the minimum speed.
  • the coupling device which has connected the right pressure cylinder 16d to the main drive of the machine is deactivated and the cylinder 16d stops, which makes it possible to remove the pressure plates from the cylinder and to apply new pressure plates for a subsequent additional printing process.
  • the printing cylinders 16s and 16d are designed as gravure cylinders.
  • a known squeegee device 100 and 101 can be assigned to the gravure cylinders 16s and 16d.
  • the squeegee blade 102 and 103 is advantageously used in an upper circumferential region of the cylinders 16s and 16d.
  • Squeegee devices 100 and 101 are known devices which are generally used in gravure printing technology and therefore do not require any further description.
  • An ink tray 104 and 105 is provided under the gravure cylinders 16s and 16d, in which an inking roller 106 and 107 is rotatably mounted.
  • the scraped-off amount of ink is fed back via a guide plate 108 and 109 into a usual collecting trough 110 and 111.
  • the doctor blade devices 100 and 101 designed to be pivotable to enable setting of the doctor blade pressure and easy retraction of the gravure cylinders 16s and 16d.
  • the cylinder 16s is used for the printing process, whereas the right cylinder 16d can be cleaned or exchanged.
  • FIG. 4 essentially corresponds to the embodiment shown in FIG. 3, with the difference that the doctor device 100 and 101 is designed in an extremely compact form and the doctor blade 102 and 103 on the lower circumference of the gravure cylinders 16s and 16d Use.
  • the solvent of the printing ink deposited in the ink cups becomes too volatilized and the ink dries out, which leads to a lower printing quality would lead, it is provided according to Fig. 4. completely encapsulate the ink application device and the doctor blade device and the corresponding gravure cylinder by means of a sheet metal jacket, in order to prevent the solvent from escaping.
  • the encapsulation advantageously consists of a base pan 112, 113, which e.g. is firmly arranged on the machine frame and envelops the ink application device and the corresponding doctor device.
  • a base pan 112, 113 With the upper end of the base trough 112 or 113, sheathing plates 114, 115 and 116 can be attached or detached in a simple manner via plug connections (120, 121, 122).
  • plug connections 120, 121, 122
  • These sheathing plates 114, 115 and 116 envelop the gravure cylinder 16s or 16d almost completely and thus form an effective encapsulation which prevents the solvent from escaping from the printing ink in an undesired manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Burglar Alarm Systems (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Paper (AREA)

Claims (15)

  1. Dispositif d'impression complémentaire comprenant un cylindre de contrepression (6) monté pivotant et entouré partiellement par une bande continue de matériau à imprimer, lequel cylindre de contrepression est supporté entre deux cylindres d'impression (16s, 16d) disposé horizontalement dans des bras pivotants (7), pivotant autour à une axe pivotant (8) horizontale et lequel cylindre de contrepression pouvant être amené en liaison active, au choix, avec un des deux cylindres d'impression (16s, 16d) associés et recevant les plaques d'impression, caractérisé en ce que les extrémités (6a) du cylindre de contrepression (6) sont logés à l'extrémité inférieure des bras pivotants (7) dont les extrémités supérieures sont reliées à l'axe pivotant (8) disposé horizontalement, et que l'axe pivotant (8) de chaque bras pivotant (7) est relié à un dispositif ayant la forme d'un chariot (10), et que chaque dispositif ayant la forme d'un chariot (10) est monté de façon déplaçable vers le haut et vers le bas par rapport aux parties latérales du bâti de machine, et que les cylindres d'impression (16s, 16d) sont disposés interchangeables au-dessous du cylindre de contrepression (6).
  2. Dispositif d'impression selon la revendication 1, caractérisé en ce que les faces de la machine (1) présentent des ouvertures (14) latérales, accessibles de l'extérieur, qui constituent des sièges de palier destinés à recevoir les tourillons finaux (15) ainsi que les paliers des cylindres d'impression (16s, 16d), et qu'un dispositif tendeur (17) est associé à chaque siège de palier (14) en vue de la fixation du tourillon (15).
  3. Dispositif d'impression selon la revendication 1, caractérisé en ce que, en-dessous de chaque cylindre d'impression (16s, 16d) est disposé un chariot (20, 21) pouvant être déplacé vers le haut et vers le bas, et que chaque chariot (20, 21) reçoit un support (25, 26) pouvant être pivoté autour d'un axe disposé horizontalement (23, 24) et qui supporte un cylindre d'encrage (27, 29; 28, 30).
  4. Dispositif d'impression selon la revendication 1, caractérisé en ce que chaque chariot (20, 21) qui reçoit les cylindres d'encrage (27, 29; 28, 30) est fonctionnellement relié à une broche d'entraînement (22) qui est entraînée par un moteur.
  5. Dispositif d'impression selon la revendication 1, caractérisé en ce qu'un dispositif de tension ferme hydraulique (12) est associé aux guidages (11) du dispositif ayant la forme d'un chariot (10).
  6. Dispositif d'impression selon la revendication 1, caractérisé en ce que les cylindres (16s, 16d), pour la réception des plaques d'impression, sont fonctionnellement reliés à des moteurs d'entraînement (85) pouvant être commandés qui peuvent être désaccouplés du moteur d'entraînement correspondant (86) par l'intermédiaire d'un accouplement (83, 84) intercalé, pouvant être commandé, et en ce que les cylindres d'impression (16d, 16f) peuvent être reliés au dispositif d'entraînement principal (82) de la machine pour impression rotative par l'actionnement d'un accouplement (79, 80).
  7. Dispositif d'impression selon la revendication 1 et 3, caractérisé en ce que, pour effectuer les mouvements de pivotement des cylindres (6, 29, 27, 30, 28), des vérins hydrauliques (51, 52, 64, 65) sont associés aux bras pivotants (7) et aux supports (25, 26) et qui coopèrent avec des vis de réglage (53, 54, 66a, 66b) servant de moyens formant butée.
  8. Dispositif selon la revendication 1, caractérisé en ce que les chariots (10), pour la réception de bras pivotants (7) et le logement du cylindre de contrepression (6) peuvent être déplacés légèrement au moyen d'un cylindre P, et que les chariots (10) présentent sur leur face inférieure une broche (67) qui est en liaison active avec une ouverture (55) ayant la forme d'une fenêtre qui est pratiquée dans une broche filetée (56), et que la broche filetée (56) est fonctionnellement reliée à un dispositif d'entraînement constitué d'une couronne dentée (59) et d'une vis filetée (60), et que le dispositif d'entraînement peut être actionné par un moteur pouvant être commandé.
  9. Dispositif d'impression selon la revendication 1, caractérisé en ce que le cylindre de contrepression (6) est entraîné par un moteur (74) indépendant, de manière avantageuse par un moteur pouvant être commandé.
  10. Dispositif d'impression selon la revendication 1, caractérisé en ce qu'un moteur (93 ou 96) indépendant, pouvant être commandé, est associé à chaque cylindre d'encrage (29, 27, 30, 28).
  11. Dispositif d'impression selon la revendication 1, caractérisé en ce que les cylindres d'impression (16s, 16d) sont réalisés sous la forme de cylindres d'héliogravure auxquels sont associés un dispositif d'encrage (104, 106, 105, 107) ainsi qu'un dispositif formant racle (100, 101).
  12. Dispositif selon la revendication 11, caractérisé en ce que les lames de racle (102, 103) portent contre les cylindres d'impression (16s, 16d) dans leur zone de pourtour supérieure et que l'encre raclée est ramenée par une tôle de guidage (108, 109) dans une cuve réceptrice d'encre (110, 111).
  13. Dispositif d'impression selon la revendication 11, caractérisé en ce que le dispositif formant racle (100, 102, 101, 103) porte contre les cylindres d'impression (16s, 16d) dans leur zone de pourtour inférieure et constituent ensemble avec le dispositif d'encrage (106, 107) une unité de construction compacte.
  14. Dispositif d'impression selon la revendication 11, caractérisé en ce que chaque cylindre d'impression (16s, 16d) ainsi que le dispositif d'encrage (106, 107) et le dispositif formant race (100, 101) sont isolés dans la plus grande mesure possible par un boîtier en tôle (114, 115, 116).
  15. Dispositif d'impression selon la revendication 14, caractérisé en ce que le dispositif formant racle (100, 101) et le dispositif d'encrage (106, 107) sont reçus dans une cuve (112, 113) montée fixe, et que des plaques de recouvrement (114, 115, 116) sont reliées par l'intermédiaire de liaisons par emboîtement (120, 121, 122) aux extrémités supérieures de la cuve (112, 113).
EP87102092A 1986-02-17 1987-02-13 Dispositif d'impression complémentaire Expired - Lifetime EP0234456B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102092T ATE80833T1 (de) 1986-02-17 1987-02-13 Zusatzdruckwerk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1943286 1986-02-17
IT19432/86A IT1204804B (it) 1986-02-17 1986-02-17 Unita' di stampa supplementare del tipo flessografiche

Publications (4)

Publication Number Publication Date
EP0234456A2 EP0234456A2 (fr) 1987-09-02
EP0234456A3 EP0234456A3 (en) 1989-08-23
EP0234456B1 EP0234456B1 (fr) 1992-09-23
EP0234456B2 true EP0234456B2 (fr) 1995-02-15

Family

ID=11157884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102092A Expired - Lifetime EP0234456B2 (fr) 1986-02-17 1987-02-13 Dispositif d'impression complémentaire

Country Status (6)

Country Link
US (1) US4729309A (fr)
EP (1) EP0234456B2 (fr)
JP (1) JP2550047B2 (fr)
AT (1) ATE80833T1 (fr)
DE (1) DE3781812D1 (fr)
IT (1) IT1204804B (fr)

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Also Published As

Publication number Publication date
ATE80833T1 (de) 1992-10-15
JP2550047B2 (ja) 1996-10-30
DE3781812D1 (de) 1992-10-29
EP0234456A3 (en) 1989-08-23
IT1204804B (it) 1989-03-10
IT8619432A0 (it) 1986-02-17
EP0234456A2 (fr) 1987-09-02
EP0234456B1 (fr) 1992-09-23
JPS62253450A (ja) 1987-11-05
US4729309A (en) 1988-03-08

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