EP0659554A2 - Groupe imprimant pour une rotative - Google Patents

Groupe imprimant pour une rotative Download PDF

Info

Publication number
EP0659554A2
EP0659554A2 EP94120168A EP94120168A EP0659554A2 EP 0659554 A2 EP0659554 A2 EP 0659554A2 EP 94120168 A EP94120168 A EP 94120168A EP 94120168 A EP94120168 A EP 94120168A EP 0659554 A2 EP0659554 A2 EP 0659554A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
support
printing unit
forme cylinder
unit according
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.)
Granted
Application number
EP94120168A
Other languages
German (de)
English (en)
Other versions
EP0659554A3 (fr
EP0659554B1 (fr
Inventor
Anton Weis
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.)
Koenig and Bauer AG
Original Assignee
Albert Frankenthal AG
Koenig and Bauer Albert AG
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 Albert Frankenthal AG, Koenig and Bauer Albert AG filed Critical Albert Frankenthal AG
Publication of EP0659554A2 publication Critical patent/EP0659554A2/fr
Publication of EP0659554A3 publication Critical patent/EP0659554A3/fr
Application granted granted Critical
Publication of EP0659554B1 publication Critical patent/EP0659554B1/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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B41F13/36—Cams, eccentrics, wedges, or the like
    • 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
    • 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 invention relates to a printing unit for a rotary printing press according to the preamble of claim 1.
  • EP 02 34 456 A2 is an additional printing unit, for. B. for flexographic printing, also known as "imprinter", in which two forme cylinders are mounted on the side frame.
  • An anilox cylinder is assigned to each forme cylinder in connection with a paint application device, each anilox cylinder being separately adjustable against the forme cylinder.
  • a counter-pressure cylinder which can alternatively be adjusted and pivoted to each forme cylinder is provided. Only one forme cylinder in connection with the impression cylinder and one anilox cylinder with an ink application device are in operation, whereby the second forme cylinder, which is not in operation, can be cleaned or exchanged.
  • a disadvantage of this printing unit is that bending vibrations that occur during the operating state cannot be completely eliminated, in particular if they are soft, in spite of the hydraulic Aristell means Printing plates, as is usual for flexographic printing processes, are applied to the forme cylinder.
  • the invention has for its object to provide a printing unit for a rotary printing press, in particular an "imprinter”, in which a smooth, play-free adjustment or readjustment of the cylinders against each other is made possible even during operation of the printing unit.
  • the arrangement of support disks enables cylinders to be placed on a cylinder which is fixed to the frame quickly and without play.
  • the adjustable cylinders can also be easily adjusted during operation of the printing unit, since the force acting on a support disk of the forme cylinder is only from one side. Readjustment of cylinders is particularly necessary when using flexible high-pressure printing plates on the forme cylinder as a result of wear and tear on the printing plate. The effects of so-called "channel strikes" are avoided.
  • the printing unit is also of variable format.
  • Two forme cylinders 1, 2 for receiving printing plates 3 are mounted via their axle journals 4, 6 in side frames 7, 8 in two different, mutually spaced vertical and parallel planes 9, 11, the second side frame 8 being indicated in FIG. 2 .
  • Each anilox roller 14, 16 can be adjusted to a forme cylinder 1, 2 mounted on the frame.
  • a counter-pressure cylinder is shown above its axle journal 22 (only a left axle journal 22 is shown, as is the case with the other cylinders 1, 2 and rollers 14, 16) 24 arranged, which can be adjusted with its circumference either to one of the two forme cylinders 1, 2.
  • the third, Vertical plane 23 is located in the middle between the two vertical planes 9, 11 of the forme cylinder 1, 2.
  • the impression cylinder 24 is pivotably mounted via its axle journals 22 in a bracket 26 fixed to the side frame by means of an eccentric bearing 25.
  • the forme cylinders 1, 2 and the anilox rollers 14, 16 are each via their journal 4, 6; 17, 18 and not shown gear can be driven.
  • Below each anilox roller 14, 16 there is an ink application device, e.g. B. chambered doctor blade 29, 31 arranged.
  • Each forme cylinder 1; 2 has on its journal 4, 6 a support disc 33, 49; 52, 34, which are concentric with the axis of rotation 19; 21 of the forme cylinder 1; 2 is arranged.
  • the support disc 33, 49; 52, 34 suitably consists of a ball bearing, which with its inner ring on the journal 19; 21 of the forme cylinder 1; 2 is pressed and the outer ring acts as a support plate.
  • An inner ring 35 and an outer ring 40 are shown using the example of the concentric support disk 34.
  • the axle journal 22 of the counter-pressure cylinder 24 has two support disks 37, 38, which are arranged one behind the other in the axial direction of the counter-pressure cylinder 24, between the holder 26 and the end face 36 of the counter-pressure cylinder 24, which also consist of ball bearings (not described in more detail), but the outer ring has an eccentricity 27, 28 to the axis of rotation 39 of the impression cylinder 24.
  • the eccentricity 27, 28 is in each case “sickle-shaped”, ie it results from the difference between a radius r2 and r1 of the support disk 37, 38, where r2 is greater than r1.
  • the envelope curve of the support disks 37, 38 has an eccentricity 27, 28.
  • a support disc 37 close to the counter-pressure cylinder 24 on the front side is aligned with the central support disc 33 of the left forme cylinder 1 (FIG. 2) and a support disc 38 remote from the end pressure cylinder 24 with the central support disc 34 of the right-hand forme cylinder 2 eccentric support disks 37; 38 also have teeth 41 on their circumference; 42, wherein the toothing 41 of the support disk 38 remote from the end face with a gear 43 of a drive motor 46 and the toothing 42 of the eccentric support disk 37 close to the end face with a gear 44 of a drive motor 47, e.g. B. servomotor, combs.
  • the holder 26 was therefore only indicated by dashed lines below the gearwheels 43, 44.
  • the anilox rollers 14; 16 which on their journals 17; 18 support disks 48; 51 have analogous to the way in which the eccentric support disks 37; 38 described.
  • the eccentric support disk 48 works, which is applied to the journal 17 of the anilox roller 14 is together with a concentric support disc 49 mounted on the journal 4 of the forme cylinder 1 remote from the end face.
  • an eccentric support disk 51 located on the journal 18 of the anilox roller 16 cooperates with a second concentric support disk 52 located on the journal 6 in the vicinity of the side frame 7.
  • eccentricity 50, 55 On the support disks 48, 51 there is also a toothing 56, 57 which meshes with a gear 58, 59, which is each positively connected to a drive motor 61, 62. What has been said about eccentricity 27, 28 also applies to eccentricity 50, 55.
  • the concentric support disc 33 is non-positively in contact with the support disc 37 of the impression cylinder 24 that can be adjusted eccentrically near the end face.
  • the concentric support disk 49 of the forme cylinder 1 is non-positively in contact with the eccentric support disk 48 of the anilox roller 14, so that when a printing plate is worn (not shown on forme cylinder 1) the counter-pressure cylinder 24 and the anilox roller 14 can be readjusted by increasing the eccentricity 27, 28 of the support disks 37, 48 after the drive motors 47, 61 are switched on.
  • the holder 26 is set to the right by means of the eccentric bearing 25 (FIG. 2), so that the circumference of the impression cylinder 24 touches the circumference of the forme cylinder 2. Furthermore, the eccentric support plate 38 of the counter-pressure cylinder 24 has non-positive contact with the concentric support plate 34 of the forme cylinder 2.
  • the concentric support plate 52 which is also located on the journal 6 of the forme cylinder 2, has non-positive contact with the eccentric support plate 51 of the right anilox roller 16, so that always only two support disks 38, 34; 52, 51 interact, whereby the impression cylinder 24 and the anilox roller 16 on the forme cylinder 2 are easy to adjust.
  • the toothings 41, 42, 56, 57 of the support disks 38, 37, 48, 51 each amount to approximately 30 degrees of arc on the circumference of the respective outer ring.
  • concentric support disks 33, 34, 49, 52 such that a circular section is removed from their circular shape on the right and left, the secants of the circular sections running parallel to one another. These supporting disks 33, 34, 49, 52 are then secured against rotation by means of holding devices which are fixed to the frame and are not shown. The journal 4, 6 are then z. B. in plain bearings of the concentric support discs 33, 34, 49, 52. This also applies analogously to the design of the support disks 48, 51, 37, 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP94120168A 1993-12-24 1994-12-20 Groupe imprimant pour une rotative Expired - Lifetime EP0659554B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4344365A DE4344365C2 (de) 1993-12-24 1993-12-24 Druckwerk für eine Rotationsdruckmaschine
DE4344365 1993-12-24

Publications (3)

Publication Number Publication Date
EP0659554A2 true EP0659554A2 (fr) 1995-06-28
EP0659554A3 EP0659554A3 (fr) 1996-11-27
EP0659554B1 EP0659554B1 (fr) 1998-06-10

Family

ID=6506130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94120168A Expired - Lifetime EP0659554B1 (fr) 1993-12-24 1994-12-20 Groupe imprimant pour une rotative

Country Status (4)

Country Link
US (1) US5447101A (fr)
EP (1) EP0659554B1 (fr)
JP (1) JP2801547B2 (fr)
DE (2) DE4344365C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501243C5 (de) * 1995-01-17 2004-01-29 Maschinenfabrik Wifag Schmitzringlagerung für einen Zylinder einer Rotationsdruckmaschine
DE19519141A1 (de) * 1995-05-30 1996-12-05 Fischer & Krecke Gmbh & Co Flexodruckmaschine mit variabler Drucklänge
GB2366243B (en) * 2000-09-02 2004-02-18 Crabtree Gateshead Ltd A flexographic printing cartridge
JP4276010B2 (ja) * 2003-07-24 2009-06-10 株式会社小森コーポレーション 印刷機における駆動装置
DE102008046792A1 (de) * 2007-09-20 2009-04-02 Heidelberger Druckmaschinen Ag Druckmaschine mit Schmitzringen
US20100282102A1 (en) * 2009-05-08 2010-11-11 Mehdizadeh Sharmin Label printing cylinder and process
DE102017222700A1 (de) * 2017-07-17 2019-01-17 Heidelberger Druckmaschinen Ag Druckmaschine mit Zwillingsdruckwerk und Verfahren zum Betreiben einer solchen Druckmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196788A (en) * 1962-03-19 1965-07-27 Michle Goss Dexter Inc Bearer ring desing for four cooperating cylinders
DE1253282B (de) * 1962-08-16 1967-11-02 Goebel Gmbh Maschf Druckwerk mit beiderseits des Form- und Druckzylinders auf deren Wellen angeordnetenStuetzringen
EP0234456A2 (fr) * 1986-02-17 1987-09-02 OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. Dispositif d'impression complémentaire
EP0277545A2 (fr) * 1987-01-31 1988-08-10 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Appareil pour le montage d'un mandrin sur un cylindre d'imprimerie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051573A (en) * 1932-01-22 1936-08-18 Hoe & Co R Late news mechanism for printing machines
GB1088658A (en) * 1964-09-10 1967-10-25 Miehle Goss Dexter Inc Printing presses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196788A (en) * 1962-03-19 1965-07-27 Michle Goss Dexter Inc Bearer ring desing for four cooperating cylinders
DE1253282B (de) * 1962-08-16 1967-11-02 Goebel Gmbh Maschf Druckwerk mit beiderseits des Form- und Druckzylinders auf deren Wellen angeordnetenStuetzringen
EP0234456A2 (fr) * 1986-02-17 1987-09-02 OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. Dispositif d'impression complémentaire
EP0277545A2 (fr) * 1987-01-31 1988-08-10 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Appareil pour le montage d'un mandrin sur un cylindre d'imprimerie

Also Published As

Publication number Publication date
JP2801547B2 (ja) 1998-09-21
DE4344365A1 (de) 1995-06-29
DE59406202D1 (de) 1998-07-16
EP0659554A3 (fr) 1996-11-27
EP0659554B1 (fr) 1998-06-10
US5447101A (en) 1995-09-05
DE4344365C2 (de) 1997-09-18
JPH07205392A (ja) 1995-08-08

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