EP2082877B2 - Racle pour groupe encreur dans une imprimante flexographique - Google Patents

Racle pour groupe encreur dans une imprimante flexographique Download PDF

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Publication number
EP2082877B2
EP2082877B2 EP07823012.5A EP07823012A EP2082877B2 EP 2082877 B2 EP2082877 B2 EP 2082877B2 EP 07823012 A EP07823012 A EP 07823012A EP 2082877 B2 EP2082877 B2 EP 2082877B2
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EP
European Patent Office
Prior art keywords
removable body
bands
base body
chamber
removable
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.)
Active
Application number
EP07823012.5A
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German (de)
English (en)
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EP2082877A4 (fr
EP2082877B1 (fr
EP2082877A1 (fr
Inventor
Jordi Puig Vila
Pierre Pasquet
Luis ESPARCH MARTÍ
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Comexi Group Industries SA
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Comexi Group Industries SA
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Publication date
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Application filed by Comexi Group Industries SA filed Critical Comexi Group Industries SA
Publication of EP2082877A1 publication Critical patent/EP2082877A1/fr
Publication of EP2082877A4 publication Critical patent/EP2082877A4/fr
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Publication of EP2082877B1 publication Critical patent/EP2082877B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/10—Relief printing
    • B41P2200/12—Flexographic printing

Definitions

  • the present invention generally relates to a doctor-blade device forming part of an inking unit in a flexographic printing machine, and in particular to a doctor-blade device adapted so that it can be disposed of together with bands installed therein when the bands need to be replaced after use.
  • Flexographic printing machines generally comprise a support on which a material to be printed is supported, and several printing units arranged to print different colors thereon.
  • Each printing unit comprises aprinting roller carrying the printing plate with the motifs to be printed arranged to make contact with the surface of the material to be printed on the support, an inking roller arranged to make contact with the printing plate assembled on the printing roller, and a doctor-blade device arranged to apply ink to the surface of the inking roller.
  • the printing roller, the inking roller and the doctor-blade device are assembled on a frame of the printing machine by means of mechanisms allowing approximation and separation movements therebetween for tasks of regulating the printing conditions, changing the liners of the rollers, changing the bands in the doctor-blade device, or maintenance.
  • a common construction in doctor-blade devices for inking units in flexographic printing machines of this type comprises a base body defining a groove in the longitudinal direction flanked by two bands provided with respective cantilevered portions ending in free sharp parallel edges arranged to make dynamic contact against a surface of the inking roller in a working position.
  • lateral sealing means are arranged to also make dynamic contact against said surface of the inking roller in said working position.
  • the device incorporates at least one inlet port and one outlet port in communication with said chamber and in connection with ink-circulation means for continuously feeding ink into and discharging it from the inside of the chamber, such that the ink circulating through the chamber is applied to the surface of the inking roller.
  • This surface of the inking roller also called “anilox" roller, is very hard and comprises cells or pits which are filled with ink when they are in contact with the ink inside the chamber while the pits move from one band to the other when the inking roller rotates.
  • the band located in the front position with respect to the rotation direction of the inking roller acts to collect the excess ink from the surface of the inking roller and to leave only the ink filling the pits.
  • the continued dynamic contact of the free edges of the bands with the pitted surface of the inking roller causes a wear of the bands, therefore they must be replaced with a certain frequency, and the mentioned lateral sealing means, which are also subjected to wear, can optionally also be replaced in the same operation.
  • the substitution of the bands involves removing the base body from its support in the printing machine, cleaning the ink off it, disassembling the worn bands, installing the new bands and again installing the base body in the printing machine. This operation is laborious and requires a considerable labor time, with a labor cost added to a cost due to the time in which the printing machine is stopped.
  • doctor-blade devices to have a doctor-blade device operatively installed in the printing machine while the band-changing operation is carried out in another, which involves an added equipment cost.
  • the color of the ink used in the inking unit is to be changed it is also necessary to remove the base body from the printing machine to thoroughly clean it before installing it again in the printing machine and connecting it to the ink-circulation means of the new color.
  • the free edges of the worn bands are extraordinarily sharp; therefore the operation of cleaning and/or changing the bands of the device entails a considerable risk for the user of being cut.
  • An objective of the present invention is to provide a doctor-blade device for an inking unit in a flexo-graphic printing machine which allows a quick operation of substituting bands and/or lateral sealing means subjected to wear, prevents cleaning operations, and minimizes the risk for the user of being cut.
  • the present invention contributes to achieving the previous and other objectives by providing a doctor-blade device for an inking unit in a flexographic printing machine of the type comprising an elongated frame, assembled in said inking unit such that it can be moved close to an inking roller or moved away from the same.
  • the mentioned frame is formed by a base body and a removable body which can be secured to said base body by securing means, for example, by snap fit coupling or by means of configurations of ribs sliding in slots.
  • the mentioned removable body defines a chamber-forming surface facing said inking roller and comprises support configurations to support two bands arranged so as to flank said chamber-forming surface.
  • the mentioned bands comprise respective free longitudinal edges arranged parallel to the axis of the inking roller to make dynamic contact against a cylindrical surface of the inking roller when the frame is moved close to the inking roller into a working position.
  • the device also includes lateral sealing means preferably supported on the removable body and arranged adjacent to opposite ends of the bands, limiting the chamber-forming surface at its longitudinal ends, to make dynamic sealing contact with said cylindrical surface of the inking roller between the two bands when the frame is in said working position.
  • a chamber is formed delimited by the two bands, the mentioned lateral sealing means, the chamber-forming surface of the removable body and an area of the cylindrical surface of the inking roller encompassed by the two bands and the lateral sealing means.
  • On the chamber-forming surface of the removable body there are arranged inlet and outlet ports adapted to be connected to ink-circulation means for feeding ink into and discharging it from said chamber during the operation of the printing machine.
  • the removable body can be a part obtained by extrusion, deep drawing or molding of a variety of materials including different plastics and aluminium alloy, among others.
  • the removable body is a molded part of a plastic material, with the bands and optionally the tight-fitting plates partially embedded as integrated parts; therefore it is relatively inexpensive to produce, and is configured and arranged so that it can be disposed of together with the bands and replaced with a new removable body when the bands need to be replaced after use or when the color or type of ink used in the device must be changed.
  • the worn bands can be substituted quickly and safely, the need to clean the chamber to change the bands and/or the lateral sealing means, orwhen a change of ink must is required, is avoided, and the risk for an operator of being cut by the bands is minimized.
  • doctor-blade device for an inking unit in a flexographic printing machine according to a first embodiment of the present invention is described below.
  • the mentioned doctor-blade device comprises an elongated frame 1, prepared to be assembled in said inking unit such that it can be moved close to an inking roller 5 or moved away from the same.
  • the figure 1 shows said frame 1 in a working position, moved close to the mentioned inking roller 5.
  • a "longitudinal direction DL" is referred to with respect to the frame 1, or any of its components, which is parallel to the axis E of the inking roller 5 when the frame 1 is operatively installed in the printing machine, and "transverse direction DT" is taken to mean a direction substantially perpendicular to said longitudinal direction DL.
  • the frame 1 comprises a base body 21, adapted to be linked to a frame of the printing machine (not shown), and a removable body 15, adaptedto be secured to said base body 21 by securing means 20 which will be described in greater detail below in relation to Figure 2 .
  • the mentioned removable body 15 defines a chamber-forming surface2facingthe inking roller 5, and comprises first support configurations 16,17 adapted to support two bands 3, 4 arranged so as to flank said chamber-forming surface 2 in the longitudinal direction DL thereof.
  • the mentioned bands 3, 4 have cantilevered portions ending in respective free longitudinal edges 3a, 4a arranged parallel to the axis of the inking roller 5 to make dynamic contact against a cylindrical surface of the inking roller 5 when the frame 1 is moved close to the inking roller 5 in the mentioned working position.
  • the base body 21 defines a concave receiving surface 35, and the removable body 15 has a convex rear surface 39, opposite to said chamber-forming surface 2.
  • the mentioned rear surface is shaped to fit in said receiving surface 35 of the base body 21.
  • the doctor-blade device includes lateral sealing means 11, 12 supported in the removable body 15.
  • the mentioned lateral sealing means 11, 12 comprise tight-fitting plates 24, 25 housed in second support configurations 18, 19 of the removable body 15 and arranged adjacent to opposite ends of said bands 3, 4 transversely to the longitudinal direction DL of the removable body 15, such that said tight-fitting plates 24, 25 limit the chamber-forming surface 2 at its longitudinal ends.
  • Each of said tight-fitting plates 24, 25 has an edge 36 adapted to make dynamic sealing contact with said cylindrical surface of the inking roller 5 between the two bands 3, 4 when the frame 1 is in said working position.
  • a resistant plate 32, 33 housed in the mentioned second support configurations 18, 19 of the removable body 15 is preferably placed between each tight-fitting plate 24, 25 and the chamber 6.
  • the tight-fitting plates 24, 25 and the mentioned resistant plates 32, 33 are laterally secured by end covers 13, 14 fixed to the removable body 15, for example, by the snap fit coupling of lugs 42 formed in said end covers 13, 14 in holes 43 formed at the ends of the removable body 15.
  • the tight-fitting plates 24, 25 will typically be made from an elastic material, such as, for example, elastomeric polymer foam, the resistant plates 32, 33 can be metal, and the end covers 13, 14 can be made from a plastic material.
  • the two bands 3, 4, the tight-fitting plates 24, 25 of the lateral sealing means 11, 12, the chamber-forming surface 2 and an area of the cylindrical surface of the inking roller 5 encompassed by the two bands 3, 4 and the lateral sealing means 11, 12 delimit a chamber 6.
  • Inlet and outlet ports 7, 8 open up on the chamber-forming surface 2 of the removable body 15, which ports in the operative position are connected to ink-circulation means for feeding ink into and discharging it from the mentioned chamber 6, causing a continuous circulation of ink through the inside of the chamber 6.
  • connection sleeves 44 (only one of which is visible in Figure 1 ) connected to conduits (not shown) of said ink-circulation means and in communication with openings 37, 38 formed in the receiving surface 35 of the base body 21 ( Figure 5 ).
  • Passages 30,31 are formed in the removable body 15 between the chamber-forming surface 2 and said rear surface 39, which passages are located so that they face said openings 37, 38 formed in the receiving surface 35 of the base body 21 when the removable body 15 is secured to the base body 21 in the working position.
  • Figure 3 shows sealing means arranged to seal the connection between the openings 37, 38 formed in the receiving surface 35 of the base body 21 and the openings of the passages 30, 31 on the rear surface 39 of the removable body 15 against possible ink leakages.
  • These sealing means comprise deformable sealing rings 40 (only one of which can be seen in Figures 1 and 3 ), arranged in respective ring-shaped slots 41 formed around the openings 37, 38 on the receiving surface 35 of the base body 21.
  • the mentioned sealing rings 40 tend to project from the slots 41 to press against corresponding ring-shaped surface areas around the openings of the passages 30, 31 on the rear surface 39 of the removable body 15 when the removable body 15 is secured to the base body 21 in the operative position. It must be pointed out that these sealing means are optional and can be omitted in alternative embodiments.
  • the mentioned securing means 20, best shown in Figure 2 comprise snap fit coupling conjugated configurations 22, 23 formed in the removable body 15 and in the base body 21, respectively.
  • the mentioned snap fit coupling configurations 22 formed in the removable body 15 comprise surfaces formed along the entire length of outer longitudinal edges of the removable body 15, inclined at a slight angle A with respect to a transverse coupling direction DT, substantially perpendicular to the longitudinal direction DL of the frame 1, and convergent outwardly from the housing of the base body 21.
  • the snap fit coupling configurations 23 formed in the base body 21 comprise surfaces formed along entire inner longitudinal edges of the base body 21, inclined the same angle A with respect to said transverse coupling direction DT, and also convergent outwardly from the housing of the base body 21.
  • Inclined surfaces 45 formed in the removable body 15 adjacent to the snap fit coupling configurations 22 and convergent inwardly of the housing of the base body 21 allow installation and removal of the removable body 15 on/from the base body 21 by snap fit coupling in the mentioned transverse direction DT.
  • the base body 21 includes end stops 34 adapted to hold the removable body 15 against movements in the longitudinal direction DL when the removable body 15 is secured to the base body 21 in the operative position.
  • Slots 46 intersecting with the corresponding configuration 23 for snap fit coupling are formed in one of said inner longitudinal edges of the base body 21. These slots 46 serve to allow the introduction of a lever-like tool to decouple the removable body 15 from the base body 21 when both are coupled in the operative position shown in Figure 4 .
  • the removable body 15 is configured and arranged so that it can be disposed of together with the bands 3, 4 and the lateral sealing means 11, 12 when the bands 3, 4 need to be replaced after use, or when the color of the ink used in the inking unit must be changed, and to be replaced with a new removable body 15 with similar features. To that end it is enough to separate the frame 1 of the inking roller 5 using conventional movement means in the printing machine to then decouple the removable body 15 from the base body 21 in the way described above and dispose of the removed removable body 15, and finally to couple a new removable body 15 to the base body 21 by means of a light pressure exerted on the removable body 15. This operation can be carried out in a few seconds and with a minimal risk for the operator.
  • the removable body 15 is advantageously a molded part of a plastic material which can be manufactured with the bands 3, 4 partially embedded in their corresponding first support configurations 16,17 as integrated parts.
  • the lateral sealing means 11, 12 are adapted to be installed to the removable body 15 after being manufactured
  • the tight-fitting plates 24,25 and the resistant plates 32,33 can also be included in the process of molding the removable body 15 to be partially embedded in their corresponding second support configurations 18, 19 as integrated parts.
  • the removable body 15 can be manufactured by other techniques, for example by extrusion or by deep drawing, and the bands 3,4, the tight-fitting plates 24, 25, and where appropriate the resistant plates 32, 33, can later be installed on the removable body 15.
  • doctor-blade device of the second embodiment shown in Figures 7 and 8 thus comprises a frame 1 formed by a base body 21 and a removable body 15 provided with first support configurations 16, 17 in which two bands 3, 4 are arranged and second support configurations 18, 19 in which tight-fitting plates 24, 25 and resistant plates 32, 33 are arranged.
  • the two bands 3, 4, the tight-fitting plates 24, 25 of the lateral sealing means 11, 12, the chamber-forming surface 2 and an area of the cylindrical surface of the inking roller 5 encompassed by the two bands 3, 4 and the lateral sealing means 11, 12 delimit a chamber 6, and inlet and outlet ports (only one of which can be seen in Figure 7 and is indicated with reference number 7) connected to ink-circulation means open up on the chamber-forming surface 2 of the removable body 15.
  • inlet and outlet ports are of a construction similar to that of the inlet and outlet ports 7, 8 of the first embodiment, and their detailed description will be omitted.
  • sealing rings 40 housed in respective ring-shaped slots 41 could be included as in the first embodiment.
  • the securing means 20 comprise conjugated rib 26 and slot 27 configurations formed in the removable body 15 and in the base body 21, respectively.
  • a reverse construction would obviously be possible, with the ribs formed in the base body 21 and the slots formed in the removable body 15 with an equivalent result.
  • the mentioned rib 26 and slot 27 configurations are formed such that the ribs 26 can be inserted into the slots 27 only in a longitudinal direction DL with respectto the axis of the inking roller 5, and once coupled they hold the removable body 15 secured to the base body 21, preventing any relative movement in the transverse direction DT.
  • the removable body 15 can be installed or extracted on/from the base body 21 by sliding in the longitudinal direction DL.
  • the end covers 13, 14 laterally securing the tight-fitting plates 24, 25 and the mentioned resistant plates 32, 33 in the second support configurations 18, 19 are adapted to be fixed to the base body 21 rather than to the removable body 15.
  • These end covers 13, 14 can be fixed, for example, by the snap fit coupling of lugs 47 projecting from the ends of the base body 21 in holes 48 formed in the end covers 13, 14.
  • the removable body 15 can be a molded part of a plastic material with the bands 3, 4 partially embedded in said first support configurations 16, 17 as integrated parts.
  • the tight-fitting plates 24, 25 and the resistant plates 32, 33 can also alternatively be included in the process for molding the removable body 15 to be partially embedded in their corresponding second support configurations 18, 19 as integrated parts.
  • the removable body 15 of the frame 1 of the second embodiment is obviously also configured and arranged so that it can be disposed of together with the bands 3, 4 and the lateral sealing means 11, 12 when the bands 3, 4 need to be replaced after use, or when the color of the ink used in the inking unit must be changed, and to be replaced with a new removable body 15 with similar features.
  • Figure 9 shows a variant of the embodiment described above in relation to Figures 7 and 8 , in which the chamber-forming surface 2 of the removable body 15 comprises a third support configuration 49 in which there is supported a third band 50 having a free longitudinal edge 50a arranged parallel to the axis of the inking roller 5 to make dynamic contact against the cylindrical surface of the inking roller 5, between the free longitudinal edges 3a, 4a of the two bands 3, 4, when the frame 1 is moved close to the inking roller 5 in the working position.
  • This third band divides the chamber 6 into first and second half-chambers, which are communicated to one another.
  • the inlet and outlet ports 7, 8 comprise plug connection means arranged in facing surfaces at contiguous ends of the base body 21 and of the removable body 15, respectively, to communicate the ink-circulation means with the mentioned first and second half-chambers when the removable body 15 is coupled to the base body 21 by means of sliding in the longitudinal direction DL of the frame 1.
  • the inlet port 7 comprises a first connection sleeve 51 fixed to an end cover 14 joined to the base body 21.
  • This first connection sleeve 51 is connected on the outer side to a conduit of the ink-circulation means and on the inner side to a first plug nipple 52 projecting inwardly from the end cover 14.
  • the mentioned first plug nipple 52 is in a position facing a first socket opening 53 formed at an axial end of the removable body 15 and in communication with the first half-chamber.
  • the outlet port 8 comprises a second connection sleeve 54 fixed to the end cover 14 joined to the base body 21 and is connected on the outer side to a conduit of the ink-circulation means and on the inner side to a second socket opening 55, whereas a second plug nipple 56, which is in communication with the second half-chamber and located in a position facing said second socket opening 55, projects outwardly from the mentioned axial end of the removable body 15.
  • the first and second plug nipples 52, 56 are automatically coupled to the first and second socket openings 53, 55.
  • the third band 50 is shorterthan the chamber-forming surface 2, such that it provides a passage between the first and second half-chambers at the end of the removable body 15 opposite to the plug connection means.
  • the mentioned communication could likewise be carried out by other means, such as, for example, through holes formed in the third band or communication channels formed internally in the removable body (15).

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Rotary Presses (AREA)

Claims (12)

  1. Dispositif à raclette pour mécanisme d'encrage dans une machine à imprimer flexographique, du genre comportant:
    un bâti allongé (1) assemblé dans ce mécanisme d'encrage de sorte qu'il puisse être déplacé proche à un rouleau d'encrage (5) ou éloigné de celui-ci;
    une surface formant une cavité (2) reliée au bâti (1) et faisant face au rouleau d'encrage (5);
    au moins deux bandes (3, 4) supportées sur ce bâti (1) adjacentes à cette surface formant une cavité (2), ces bandes (3, 4) comportant des bords longitudinaux libres respectifs (3a, 4a) aménagés parallèles à l'axe de ce rouleau d'encrage (5) pour établir un contact dynamique contre une surface cylindrique de ce rouleau d'encrage (5) lorsque le bâti (1) est déplacé proche au rouleau d'encrage (5) en position de travail;
    des moyens d'étanchéité latéraux (11, 12) supportés sur le bâti (1) et aménagés adjacents aux extrémités opposées de ces bandes (3, 4) limitant la surface formant la cavité (2) pour établir un contact d'étanchéité dynamique avec cette surface cylindrique du rouleau d'encrage (5) entre les deux bandes (3, 4) lorsque le bâti (1) est dans cette position de travail; et
    des ouvertures d'entrée et de sortie (7, 8) adaptés pour être reliées aux moyens de circulation de l'encre pour alimenter l'encre à l'intérieur et la décharger d'une cavité (6) délimitée par deux bandes (3, 4), ces moyens d'étanchéité latéraux (11, 12), cette surface formant une cavité (2) et une région de la surface cylindrique du rouleau d'encrage (5) qu'embrassent les deux bandes (3, 4) et le moyen d' étanchéité latéral (11, 12) lorsque le bâti (1) est en position de travail,
    caractérisé en ce que ce bâti (1) comporte un corps de base (21) et un corps amovible (15) pouvant être fixé à ce corps de base (21) par des moyens de fixation (20), qui comprennent des configurations de nervure (26) et fente conjuguées formées dans le corps amovible (15) et dans le corps de base (21), respectivement, ou vice versa, de telle sorte que les nervures (26) peuvent être insérés dans les fentes (27) uniquement dans une direction longitudinale DL par rapport à l'axe du rouleau d'encrage (5) et, une fois couplés, ils maintiennent le corps amovible (15) fixé au corps de base (21) empêchant tout mouvement relatif dans le sens transversal, de sorte que le corps amovible (15) peut être installé ou extrait sur / à partir du corps de base (21) en coulissant dans la direction longitudinale DL du bâti en position de travail, et dans lequel le corps de base (21) comporte des butées d'extrémité (34) adaptée pour maintenir le corps amovible (15) contre les mouvements en direction longitudinale DL du bâti (1) lorsque le corps amovible (15) est fixé au corps de base (21) en position de travail, et dans lequel ce corps amovible (15) définit la surface formant la cavité (2) et comprend des premières configurations de support (16, 17) pour supporter les deux bandes (3, 4), le corps amovible (15) étant configuré et aménagé de sorte qu'on puisse l'enlever en même temps que les bandes (3, 4).lorsque les bandes (3, 4) doivent être remplacés après utilisation.
  2. Le dispositif conformément à la revendication 1, dans lequel le corps amovible (15) comprend en plus des deuxièmes configurations de support (18, 19) pour supporter les moyens d'étanchéité latéraux (11, 12), le corps amovible (15) étant configuré et aménagé de sorte que l'on puisse l'enlever en même temps que les bandes (3, 4) et les moyens d'étanchéité latéraux (11, 12).
  3. Le dispositif conformément à la revendication 1, dans lequel les moyens d'étanchéité latéraux (11, 12) comportent des plaques fermement raccordables (24, 25) aménagées dans ces deuxièmes configurations de support (18, 19) du corps amovible (15), chacune de ces plaques fermement raccordables (24, 25) comprenant un bord (36) adapté pour établir un contact dynamique contre la surface cylindrique du rouleau d'encrage (5).
  4. Le dispositif conformément à la revendication 3, dans lequel une plaque résistante (32, 33) hébergée dans les deuxièmes configurations de support (18, 19) du corps amovible (15) est placé entre chaque plaque fermement raccordable (24, 25) et la cavité (6).
  5. Le dispositif conformément à la revendication 4, dans lequel ces plaques fermement raccordables (24, 25) et ces plaques résistantes sont assurées sur les côtés par des couvercles d'extrémité (13, 14) fixées au corps amovible (15) ou au corps de base (21).
  6. Le dispositif conformément à la revendication 1, dans lequel le corps de base (21) définit une surface de réception (35) et le corps amovible (15) possède une surface arrière (39) en face de cette surface formant la cavité (2) et ayant une forme lui permettant de s'accoupler dans cette surface de réception (35) du corps de base (21), et ces ouvertures d'entrée et de sortie (7, 8) comprennent des manchons de connexion en communication avec les ouvertures (37, 38) formées dans la surface de réception (35) de la base de corps (21) et des passages (30, 31) formés entre la surface formant chambre (2) et cette surface arrière (39) du corps amovible (15) et aménagée pour être en regard de ces ouvertures (37, 38) formées dans la surface de réception (35) du corps de base (21) lorsque le corps amovible (15) est fixé au corps de base (21) en position de fonctionnement.
  7. Le dispositif conformément à la revendication 6, dans lequel les bagues d'étanchéité (40) sont aménagées dans des fentes en forme d'anneaux (41) formées autour des ouvertures (37, 38) sur la surface de réception (35) du corps de base (21) pour les presser contre les régions à surface ayant la forme d'anneaux autour des ouvertures de ces passages (30, 31) sur la surface arrière (39) du corps amovible (15) lorsque le corps amovible (15) est fixé au corps de base (21) en position de fonctionnement.
  8. Le dispositif conformément à la revendication 1, dans lequel la surface formant la cavité (2) du corps amovible (15) comprend une troisième configuration de support (49) pour supporter une troisième bande (50) pourvue d'un bord longitudinal libre (5a) aménagé parallèle à l'axe du rouleau d'encrage (5) pour établir un contact dynamique contre une surface cylindrique ledit rouleau d'encrage (5) entre les bords longitudinaux libres (3a, 4a) des deux bandes (3, 4) lorsque le bâti (1) est déplacé proche au rouleau d'encrage (5) en position de travail, cette troisième bande (50) divisant la cavité (6) en une première et une deuxième demi-cavités communiquées entre elles lorsque le bâti (1) est en position de travail.
  9. Le dispositif conformément la revendication 6, dans lequel ces ouvertures d'entrée et de sortie (7, 8) comportent des moyens de connexion à insertion aménagés sur des surfaces en regard d'extrémités contiguës du corps de base (21) et du corps amovible (15) et adapté pour communiquer ces moyens de circulation d'encre à ces première et deuxième demi-cavités lorsque le corps amovible (15) est couplé au corps de base (21) au moyen de ce coulissement en direction longitudinale (DL) du bâti (1).
  10. Le dispositif conformément à la revendication 1, dans lequel le corps amovible (15) est une partie comportant un matériau sélectionné d'un groupe comprenant un matériau moulé, un matériau embouti et un matériau extrudé.
  11. Le dispositif conformément à la revendication 1, dans lequel le corps amovible (15) est une partie moulée faite en matière plastique les bandes (3, 4), étant intégrées en partie dans leurs configurations de support correspondantes (16, 17) comme parties intégrées
  12. Le dispositif conformément à la revendication 11, dans lequel ladite partie moulée comporte en outre des plaques fermement raccordables (24, 25) comme parties intégrées.
EP07823012.5A 2006-11-16 2007-10-25 Racle pour groupe encreur dans une imprimante flexographique Active EP2082877B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200602914A ES2300202B1 (es) 2006-11-16 2006-11-16 Dispositivo de rasqueta para un grupo entintandor de una impresora flexografica.
PCT/ES2007/000605 WO2008059079A1 (fr) 2006-11-16 2007-10-25 Racle pour groupe encreur dans une imprimante flexographique

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EP2082877A1 EP2082877A1 (fr) 2009-07-29
EP2082877A4 EP2082877A4 (fr) 2011-09-21
EP2082877B1 EP2082877B1 (fr) 2012-03-28
EP2082877B2 true EP2082877B2 (fr) 2016-07-13

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AT (1) ATE551191T1 (fr)
DK (1) DK2082877T4 (fr)
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WO (1) WO2008059079A1 (fr)

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DE102007027383A1 (de) * 2007-06-11 2008-12-24 Windmöller & Hölscher Kg Farbkammerrakel in einem Farbwerk einer Rotationsdruckmaschine
CN105058981A (zh) * 2015-09-09 2015-11-18 温州方力机械有限公司 一种柔版印刷机的上墨装置

Citations (1)

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Publication number Priority date Publication date Assignee Title
US5406887A (en) † 1993-01-15 1995-04-18 Paper Converting Machine Company Apparatus and method for doctor blade replacement in a flexographic press

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Publication number Priority date Publication date Assignee Title
DK49188D0 (da) * 1988-02-01 1988-02-01 Tresu As Rakel
DE4012618A1 (de) * 1990-04-20 1991-10-24 Roland Man Druckmasch Rakelfarbwerk
SE470283B (sv) * 1992-05-22 1994-01-10 Aake Boeoese Kammarrakelanordning för tryckverk och tryckverk
DE19516223C2 (de) * 1995-05-03 1997-03-20 Windmoeller & Hoelscher Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine
US6293195B1 (en) * 1998-10-07 2001-09-25 Alhsontech Sales Incorporated Chambered flexographic ink units with quick-change, blade thickness compensating clamping mechanism
FR2793441B1 (fr) * 1999-05-11 2001-08-03 Saint Eloi Mecanique Outil Sa Dispositif pour l'encrage d'un anilox d'une machine a impression flexographique
SE527080C2 (sv) * 2004-05-05 2005-12-20 Akeboose Internat Ab Anordning och förfarande för kammarrakel

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US5406887A (en) † 1993-01-15 1995-04-18 Paper Converting Machine Company Apparatus and method for doctor blade replacement in a flexographic press

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Publication number Publication date
ES2300202B1 (es) 2009-02-16
WO2008059079A1 (fr) 2008-05-22
EP2082877A4 (fr) 2011-09-21
DK2082877T3 (da) 2012-06-04
ATE551191T1 (de) 2012-04-15
EP2082877B1 (fr) 2012-03-28
DK2082877T4 (en) 2016-11-14
ES2300202A1 (es) 2008-06-01
EP2082877A1 (fr) 2009-07-29

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