EP2221179B1 - Groupe d'impression ou d'encrage - Google Patents

Groupe d'impression ou d'encrage Download PDF

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Publication number
EP2221179B1
EP2221179B1 EP20100152778 EP10152778A EP2221179B1 EP 2221179 B1 EP2221179 B1 EP 2221179B1 EP 20100152778 EP20100152778 EP 20100152778 EP 10152778 A EP10152778 A EP 10152778A EP 2221179 B1 EP2221179 B1 EP 2221179B1
Authority
EP
European Patent Office
Prior art keywords
printing
ink transfer
bearing
transfer cylinder
cylinder
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
EP20100152778
Other languages
German (de)
English (en)
Other versions
EP2221179A1 (fr
Inventor
Achim Seeberger
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2221179A1 publication Critical patent/EP2221179A1/fr
Application granted granted Critical
Publication of EP2221179B1 publication Critical patent/EP2221179B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports
    • 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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/32—Bearings mounted on swinging supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/307—Sliding bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/308—Swinging bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/80—Means enabling or facilitating exchange of cylinders
    • B41P2213/804—Means enabling or facilitating exchange of cylinders radially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a printing or inking unit according to the preamble of claim 1 and a method for changing at least parts of a color transfer cylinder according to the preamble of claim 9.
  • Printing or inking units comprise one or more ink transfer cylinders, for example, carries the printed image to be printed on the substrate. This can be adjusted directly against a counter-pressure cylinder over which the printing material is guided.
  • This counter-pressure cylinder can be a common counter-pressure cylinder for all inking units, each inking unit being used for one printing ink each. But it can also be assigned to each inking a separate impression cylinder. In this case we speak of a printing unit.
  • a color transfer cylinder can also be any other cylinder which is arranged between the ink reservoir and the printing material.
  • a said ink transfer cylinder is usually taken with each of its ends, which are outside the printing area and are often referred to as a pin, each in a bearing block. Relative to these bearing blocks of the ink transfer cylinder is arranged immovably in the printing operation in its radial direction.
  • a positioning system is provided in said printing or inking units, with which the bearing blocks relative to Counter-pressure cylinders are movable.
  • the bearing blocks for this purpose carry carriages, which are movable on rails that can be attached to consoles of printing or printing press frame.
  • a suitable traversing device for example a motor-driven or hand-driven spindle-spindle nut combination, can be provided for this purpose.
  • At least one bearing block comprises a locking device with which one end of the ink transfer cylinder can be locked rotatably but immovably in the radial direction on the bearing block.
  • a disadvantage is that the bearing block using the positioning in the radial direction of the ink transfer roller must be moved comparatively far to create the space described. This is very cumbersome and time-consuming, especially in manually operated positioning systems.
  • EP 1 721 742 A2 and DE 199 37 796 A1 describes bearing blocks, where components can be folded down on the operating side, so that the bearing block does not have to be moved through the positioning system in order to create the necessary clearance.
  • the drive ends of the ink transfer cylinder are fixed, but rotatably mounted in bearing blocks. These pedestals only allow the movement of the ink transfer cylinder in the direction of the impression cylinder.
  • the object of the present invention is to propose a printing or inking unit, which allows a quick change even in the size of large sleeves.
  • a printing or inking unit which in addition to the features of the preamble of claim 1 also comprises the characterizing features of claim 1.
  • both bearing blocks each have an axis is provided to which parts of the bearing blocks are pivotally mounted, wherein the axes parallel to a line extending in the radial direction of the ink transfer cylinder
  • a bearing block can be divided into two parts, wherein the two parts are connected to each other in the manner of a hinge. Also, large diameter sleeves can be exchanged in this way, as described in detail below
  • the said axis about which the part of the bearing block can be folded runs parallel to the direction of displacement of the positioning.
  • the axis can run parallel to the guide rails on which the bearing block can be slidably mounted.
  • the hinged part of the bearing block is in its folded state directly in front of the parts of the machine frame, which carry the guide rail (s), and thus disturbs the least when changing the sleeves.
  • the ink transfer cylinder pierces the respective bearing block and that at this end a force introduction device engages, with which a force can be applied to this end for pivoting the ink transfer roller.
  • this force introduction device the end of the ink transfer cylinder, for example, in the vertical direction can be pulled down, wherein the ink transfer cylinder is supported on the bearing block, which is pierced by the end. If this bearing block with one of its parts is now pivotable about an axis according to the invention, then this part can tilt slightly, so that overall the free end of the ink transfer cylinder can be raised.
  • the ink transfer cylinder comprises a pressure sleeve whose circumference is so great that it could not be changed without the described measure because of the printing press frame in the way.
  • a bearing device which is rotatable relative to this end, but axially immovable.
  • the bearing device ensures that the force introduction device does not disturb the rotation of the ink transfer cylinder during operation.
  • the force introduction device and the end of the ink transfer cylinder can be decoupled from each other, so that the ink transfer cylinder is also completely removable from the inking unit.
  • a suitable coupling is provided which can be arranged between the bearing device and the journal of the ink transfer cylinder or between the bearing device and the force introduction device.
  • the force introduction device is displaceable relative to the impression cylinder via a guide system.
  • the force introduction device and the end of the ink transfer cylinder are permanently coupled together, the force introduction device should be mounted displaceably with the bearing block.
  • a guide system is provided which guides the force introduction device during the adjustment movement of the bearing block against the impression cylinder. This configuration allows the operator to change parts of the ink transfer cylinder, such as a sleeve, without first having to couple the force introduction means to the end of the ink transfer cylinder at the opposite end of the ink transfer cylinder.
  • Fig. 1 shows a printing machine 1, in which an inventive printing unit 2 is installed.
  • the printing machine shown is a flexographic printing machine, as used for printing on paper webs. From these paper webs are then formed, often "inline", hoses, which are separated into pieces of hose. From such pieces of tubing bags are often made, which are needed for the packaging of bulk material, for example for the construction industry.
  • the present invention is not limited to printing or inking units in flexographic printing machines. However, it is advantageously used here, since often color transfer cylinder different Printing length and thus different roll diameter can be used.
  • all printing units 2 are mounted in a machine frame, which comprises the side frames 3, 3 'and brackets 4, 4', of which in the Fig. 1 only each of the front parts can be seen.
  • the printing units can also be stored in different, independent racks.
  • Each printing unit 2 comprises a counter-pressure cylinder 5, to which a pressure roller 6 is adjustable.
  • an anilox roller 7 can be adjusted to the pressure roller 6.
  • the pressure rollers 6 and the anilox rollers 7 are special embodiments of the above-mentioned ink transfer cylinder.
  • Another example of a color transfer cylinder would be a inking roller.
  • the in the Fig. 1 The arrangement shown is typical of an embodiment of modern flexographic printing machines.
  • a Farbschzigrakel 8 is adjustable, which serves as a color reservoir.
  • the pressure roller 6 is rotatably mounted in a bearing block 9. In the radial direction of the pressure roller this is not movable relative to the bearing block.
  • the bearing block 9 and thus the pressure roller 6 are movable relative to the impression cylinder 5.
  • a positioning system is provided, which is constructed as follows:
  • the bearing block 9 is arranged on a carriage 10 which is displaceable along arranged on the console 4, 4 'guide rails 11.
  • the carriage 10 comprises an attachment piece 12 in or on which a spindle nut is arranged.
  • a threaded spindle 13 is screwed, the rotatable about a spindle bearing 14, but immovably to the console 4 or 4 'and thus with the or the counter-pressure cylinder 5 overlapping side frame 3 or 3' is connected.
  • the threaded spindle 13 is rotated, for example, via a not-shown handwheel, then moves the carriage 10 and thus the bearing block 9 together with the pressure roller 6 relative to the impression cylinder 5.
  • the pressure roller 6 with this positioning system for the actual printing to the impression cylinder. 5 be hired, and the pressure roller 6 can be freed to this or at least be able to change parts of it.
  • the positioning system for the pressure roller 6 shown is merely an example, many other embodiments may be part of a printing and inking unit 2 according to the invention.
  • Each anilox roller 7 is also mounted with their ends in a respective bearing block 15, which are connected to carriage 16.
  • the carriage 16 run on guide rails 17, which are arranged in the embodiment shown on the carriage 10 for the pressure roller 6.
  • a spindle bearing 17 is fixed, in which a threaded spindle 18 is rotatably mounted, but relative to the carriage 16 immovable.
  • the threaded spindle 16 is screwed into a spindle nut arranged in or on the attachment piece 12, so that rotation of the threaded spindle 16 enables positioning of the anilox roller 7 relative to the pressure roller 6.
  • the illustrated and just described positioning system for the anilox roller 7 is just one example of such a system.
  • the pressure roller 6 may be provided with a printing forme, referred to as cliché in flexographic printing.
  • the printing form transfers the printing ink, which it has received from the anilox roller 7, in format to the printing material web 19 guided over the impression cylinder 5.
  • the anilox roller takes the ink from the ink chamber doctor blade 8. In order to provide the printing roller 6 in the fastest possible way with another printing plate To be able to, they must 6 removed from the printing or inking unit 2 or the sleeve 35 carrying the printing form are deducted from the mandrel.
  • the bearing block 9 must be removed correspondingly from the operator-side end (pin 20) of the pressure roller 6.
  • FIG. 2 shown the view of the section II - II from the FIG. 1 shows.
  • the bearing block 9 itself comprises various components.
  • An upper bearing shell 21 is removable from the lower bearing shell 22, as shown in the FIG. 3 is shown.
  • both bearing shells 21, 22 are connected to each other via a hinge 23.
  • the upper bearing shell 21 can in its closed position can be pressed by the handwheel 24 to the lower bearing shell 22.
  • the pin 20 of the pressure roller carries, for example, a needle bearing 25 which is inserted into the lower bearing shell 22.
  • the needle bearing 25 can now be locked by means of the upper bearing shell 21 and the handwheel 24 on the bearing block 9.
  • the bearing shells 21, 22, the joint 23 and the hand wheel 24 can thus be referred to as a locking device for the pin 20.
  • the bearing block 9 ' is constructed accordingly, so that the pressure roller 6 can be completely removed from the printing unit 2.
  • the lower bearing shell 22 is not directly connected to the carriage 10, but via an intermediate block 26, wherein bearing shell 22 and intermediate block 26 are hinged together.
  • the bearing shell 22 and the intermediate block 26 have mutually aligned bores in which a pin 27 is inserted, which defines a rotation axis 28 about which the bearing shell 22 is rotatable.
  • An essential idea of the present invention is that the axis of rotation 28 runs parallel to the guide rail 11. In this way, the bearing shell 22 of the bearing block 9 can be folded down, as in the FIG. 2 is shown.
  • the pressure roller 6 is now held only one end in the printing unit.
  • a force introduction device which introduces a holding force into the second end (pin 29) of the pressure roller 6 and thus provides for the torque required to hold the roller.
  • This force introduction device comprises a pivot bearing 30, which is mounted on the pin 29 and to which a support rod 31 engages. The support rod is connected via the arrangement described below with the console 4 '.
  • the support rod 31 is pivotally connected to the pivot bearing 30.
  • the Retaining rod 31 by means of a drive displaced.
  • This drive may be a piston-cylinder unit 32, to whose piston rod the holding rod 31 is fastened or whose piston rod constitutes the holding rod 31.
  • the piston-cylinder unit 32 is supported on a rail 33, which is fixed in a manner not shown on the console 4 '.
  • the bearing block 9 ' is divided into two parts, as has already been described in detail for the bearing block 9.
  • a driver 34 is provided which is fastened to the intermediate block 26 'on one side and to the piston-cylinder unit 31 on the other side.
  • the intermediate blocks 26 and 26 ' are provided with stops, so that the lower bearing shells 22, 22' can remain in a defined, substantially upright position.
  • a suitable device By a suitable device, the lower bearing shells 22, 22 'pressed against these attacks.
  • Such a device may be a spring element or a guide, so that the force acting on the lower bearing shell 22, 22 'weight force 22, 22' presses against the stop. This ensures that a lower bearing shell is in a specific position when the associated pin 20, 20 'with the needle bearing in the lower bearing shell 22, 22' to be inserted.
  • Said suitable device is advantageously so designed that the lower bearing shell 22 in the folded position, as shown in the Fig. 2 is shown, remains.
  • the combination of the described components and arrangements thus makes it possible, on the one hand completely remove printing rollers 6 or anilox rollers 7 from the printing or color unit 2 and, on the other hand, to provide printing mandrels of the printing rollers 6 with sleeves 35 whose diameters cover a relatively large diameter range.
  • the printing machine described is very flexible operable.
  • the printing length range can be very large, which is particularly important in the production of paper sacks, here again, in particular for the building materials industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Claims (9)

  1. Groupe d'impression ou d'encrage (2) comprenant au moins un cylindre de transfert d'encre (6, 7) qui peut être appliqué contre un cylindre de contre-pression (5) au moyen d'un dispositif de réglage (9, 10, 11, 12, 13, 14, 15, 16, 17, 18), le dispositif de réglage (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
    - comportant au moins deux supports de palier (9, 15) pour recevoir la première extrémité (20) et la deuxième extrémité (29) du cylindre de transfert d'encre (6, 7) et
    - un système de positionnement (10, 11, 12, 13, 14, 16, 17, 18) à l'aide duquel les supports de palier (9, 15) peuvent être déplacés en direction du cylindre de contre-pression (5) et à l'écart de ce dernier,
    - au moins un support de palier (9, 15) comportant un dispositif de blocage (21, 22, 23, 24) à l'aide duquel une extrémité du cylindre de transfert d'encre (20, 29) peut être bloquée sur le support de palier (9, 15) de manière rotative mais fixe dans la direction radiale,
    caractérisé en ce
    qu'un axe respectif (27, 27') est prévu dans les deux supports de palier (9, 15), autour duquel axe des parties (21, 22, 21', 22') des supports de palier sont montées pivotantes, les axes (27, 27') s'étendant parallèlement à une ligne qui s'étend dans la direction radiale du cylindre de transfert d'encre (6, 7).
  2. Groupe d'impression ou d'encrage (2) selon la revendication 1,
    caractérisé en ce que
    l'axe (27, 27') s'étend parallèlement à la direction de déplacement (x) du système de positionnement (10, 11, 12, 13, 14, 16, 17, 18).
  3. Groupe d'impression ou d'encrage (2) selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une extrémité (29) du cylindre de transfert d'encre (6, 7) pénètre dans le support de palier (9, 15) et
    en ce qu'un dispositif d'introduction de force (30 - 33) agit sur cette extrémité pénétrant dans le support de palier (9, 15), à l'aide duquel dispositif d'introduction de force une force peut être appliquée sur l'extrémité pour faire pivoter le cylindre de transfert d'encre (6, 7).
  4. Groupe d'impression ou d'encrage (2) selon la revendication précédente,
    caractérisé en ce que
    le dispositif d'introduction de force (30 - 33) comporte une unité piston-cylindre (32).
  5. Groupe d'impression ou d'encrage (2) selon l'une des deux revendications précédentes,
    caractérisé en ce que
    l'extrémité du cylindre de transfert d'encre (6, 7) supporte un dispositif de palier (30) qui est rotatif mais axialement fixe par rapport à cette extrémité et sur lequel agit le dispositif d'introduction de force (30 - 33).
  6. Groupe d'impression ou d'encrage (2) selon la revendication précédente,
    caractérisé en ce que
    le dispositif de palier (30) peut être détaché du cylindre de transfert d'encre (6, 7) et/ou le dispositif d'introduction de force (30 - 33) peut être détaché du dispositif de palier au moyen d'un embrayage.
  7. Groupe d'impression ou d'encrage (2) selon l'une des quatre revendications précédentes,
    caractérisé en ce que
    le dispositif d'introduction de force (30 - 33) peut être déplacé par rapport au cylindre de contre-pression (5) au moyen d'un système de guidage (33).
  8. Groupe d'impression ou d'encrage (2) selon l'une des cinq revendications précédentes,
    caractérisé en ce que
    le dispositif d'introduction de force (30 - 33) est relié à un support de palier (9, 15) au moyen d'un dispositif d'entraînement (34).
  9. Procédé de changement d'au moins des parties d'un cylindre de transfert d'encre (6, 7) dans un groupe d'impression ou d'encrage (2), lequel cylindre de transfert d'encre peut être appliqué contre un cylindre de contre-pression (5), ou dégagé de ce dernier, au moyen d'un dispositif de réglage (9, 10, 11, 12, 13, 14, 15, 16, 17, 18),
    - la première extrémité (20) et la deuxième extrémité (29) du cylindre de transfert d'encre (6, 7) étant placées sur ou insérées dans au moins deux supports de palier (9, 15),
    - les supports de palier (9, 15) étant déplacés au moyen d'un système de positionnement (10, 11, 12, 13, 14, 16, 17, 18) en direction du cylindre de contre-pression (5) et à l'écart de ce dernier,
    - une extrémité du cylindre de transfert d'encre (20, 29) pouvant être bloquée au moyen d'un dispositif de blocage (21, 22, 23, 24) de manière rotative mais fixe dans la direction radiale,
    caractérisé en ce que
    des parties (21, 22, 21', 22') des deux supports de palier (9, 15) sont pivotées respectivement autour d'un axe (27, 27'), les axes (27, 27') s'étendant parallèlement à une ligne qui s'étend dans la direction radiale du cylindre de transfert d'encre (6, 7).
EP20100152778 2009-02-23 2010-02-05 Groupe d'impression ou d'encrage Active EP2221179B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910001083 DE102009001083A1 (de) 2009-02-23 2009-02-23 Druck- oder Farbwerk

Publications (2)

Publication Number Publication Date
EP2221179A1 EP2221179A1 (fr) 2010-08-25
EP2221179B1 true EP2221179B1 (fr) 2013-05-01

Family

ID=42077816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100152778 Active EP2221179B1 (fr) 2009-02-23 2010-02-05 Groupe d'impression ou d'encrage

Country Status (3)

Country Link
EP (1) EP2221179B1 (fr)
DE (1) DE102009001083A1 (fr)
ES (1) ES2422582T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016206764A1 (de) * 2016-04-21 2017-10-26 Heidelberger Druckmaschinen Ag Bearbeitungsmaschine mit freigebbarem Bearbeitungszylinder
ES2922176T3 (es) * 2018-11-16 2022-09-09 Windmoeller & Hoelscher Disposición de cojinete desmontable de un cilindro de la unidad de entintado de una máquina de impresión
CN113183623A (zh) * 2021-04-29 2021-07-30 无锡光群雷射科技有限公司 快速换版装置及换版方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789757A (en) * 1971-03-26 1974-02-05 Motter J Printing Press Co Printing press having automatic printing cylinder loading and unloading apparatus
IT1273544B (it) * 1995-04-12 1997-07-08 Bielloni Castello S P A Macchina da stampa con dispositivo per la sostituzione rapida delle camicie dei cilindri dei gruppi inchiostratori
DE19705369C2 (de) 1997-02-12 2003-03-06 Windmoeller & Hoelscher Druckmaschine
US6186068B1 (en) * 1999-05-18 2001-02-13 Creo Srl Method for holding printing sleeves in an imaging device
DE19937796B4 (de) * 1999-08-10 2007-03-22 Man Roland Druckmaschinen Ag Druckwerk
ITVR20010130A1 (it) * 2001-12-06 2003-06-06 Of E M S R L Gruppo di stampa a cambio rapido delle maniche in macchine flessografiche
DE102005040237B4 (de) * 2005-05-13 2007-08-02 Wetzel Gmbh Prägekalander
DE102005039782A1 (de) 2005-08-22 2007-03-01 Windmöller & Hölscher Kg System sowie ein Verfahren zum Vornehmen von Drucklängenwechseln

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Publication number Publication date
DE102009001083A1 (de) 2010-08-26
ES2422582T3 (es) 2013-09-12
EP2221179A1 (fr) 2010-08-25

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