EP0614759A1 - Procédé et dispositif pour régler la position des cylindres d'impression - Google Patents

Procédé et dispositif pour régler la position des cylindres d'impression Download PDF

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Publication number
EP0614759A1
EP0614759A1 EP94103542A EP94103542A EP0614759A1 EP 0614759 A1 EP0614759 A1 EP 0614759A1 EP 94103542 A EP94103542 A EP 94103542A EP 94103542 A EP94103542 A EP 94103542A EP 0614759 A1 EP0614759 A1 EP 0614759A1
Authority
EP
European Patent Office
Prior art keywords
eccentric bushing
pressure
cylinder
eccentric
hydraulic
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.)
Withdrawn
Application number
EP94103542A
Other languages
German (de)
English (en)
Inventor
Gerhard Zuber
Günter Koppelkamm
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0614759A1 publication Critical patent/EP0614759A1/fr
Withdrawn legal-status Critical Current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
    • B41F13/20—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
    • B41F13/28—Bearings mounted eccentrically of the cylinder axis

Definitions

  • the invention relates to a method and a device for adjusting pressure cylinders according to the preamble of claim 1.
  • the bearings of the printing cylinders of rotary printing presses must be completely free of play in the radial direction in order to compensate for the dynamic loads in the radial direction caused by the fastening of printing plates and rubber blankets on forme cylinders or transfer cylinders, in order to meet the quality requirements of multicolor printing with a high concentricity of the printing cylinders will.
  • a disadvantage of this device is that the hydraulic pressure must be maintained constantly in the operating state of the pressure cylinder. In the area of the bearings, leakage oil losses cannot be completely avoided, despite complex seals.
  • bearings with three-ring bearings are known for printing cylinders (DE-OS 36 43 295), in each of which a multi-part intermediate ring of two rows of rolling elements regulates the bearing play.
  • three-ring and two-ring bearings can be known to use one Eccentric roller bearing intermediate or outer ring can be equipped, but radial play is essential for the adjustment of the outer ring of the two-ring bearing.
  • the invention has for its object to provide a method and an apparatus for adjusting printing cylinders according to the preamble of claim 1 and 7, which enable both radial adjustment of the printing cylinders and their play-free printing operation with simple technical means.
  • This object is achieved by the characterizing features of claim 1 according to the method and according to claim 7 according to the device.
  • the invention enables a relatively simple roller bearing to support the pressure cylinders in the operating state free of radial play and, on the other hand, the torsional play required for a radial adjustment of the pressure cylinders for the eccentric bushing or the eccentric outer ring of the roller bearing.
  • the required hydraulic pressure load of the eccentric bushing which is otherwise without play under pressure in the wall bore, is only limited to the adjustment process for a short time, so that negative leakage oil losses can be avoided.
  • a play-free press fit between the wall hole and the eccentric bushing can be easily implemented.
  • the invention can be used according to claim 4 for the pressure-correct setting of pressure cylinders that cannot be changed in their position after the adjustment, or according to claim 5 also for pressure cylinders that can be switched on and off, in the latter case the hydraulic load on the eccentric bushing and its adjustment according to claim 6 are to be coordinated.
  • the device according to the invention according to claim 7 secures with simple technical means the rotation of the eccentric bushing which is otherwise firmly seated in the wall bore, the annular hydraulic load on the circumference causing an elastic reduction in the outer diameter of the eccentric bushing due to the substantially higher deformation resistance of the wall bore.
  • Claims 8 and 9 contain the two possibilities for the arrangement of an annular groove in the region of the parting line between Wall hole and eccentric bushing.
  • connection of a hydraulic supply device to the hydraulic connection or its closure is alternatively possible, with the use of the invention being sufficient only for the adjustment of the pressure cylinder according to claim 11, the temporary connection of a hand-operated hydraulic press according to claim 12, for example, is sufficient an application of the invention for the repetitive printing on and off of the pressure cylinder according to claim 13 a permanent connection of the hydraulic supply device is required due to the function and advantageously the adjustment of the eccentric bushing in dependence on its hydraulic load within the meaning of claims 14 and 15 is to be regulated.
  • the invention can be used particularly advantageously for the adjustment or printing on and off of transfer and forme cylinders of a multi-cylinder offset printing unit.
  • a 6-cylinder offset printing unit was selected, the printing cylinder 1; 1 I ; 2; 2 I and 3; 3 I ; 3 II to 5; 5 I ; 5 II and 6 embody three outside cylinders (impression cylinders 1; 1 I to 3; 3 I and 3 II ) as well as three transfer cylinders (impression cylinders 4; 4 I ; 4 II to 5; 5 I ; 5 II and 6) and their Cylinder pin 7; 7 I ; 8th; 8 I and 9; 9 I ; 9 II to 11; 11 I ; 11 II and 12 each have a roller bearing 13; 13 I ; 14; 14 I and 15; 15 I ; 15 II to 17; 17 I ; 17 II and 18 in a wall hole 19; 19 I ; 20; 20 I and 21; 21 I ; 21 II to 23; 23 I ; 23 II and 24 of the machine frame 25; 25 I ; 25 II are stored.
  • Two printing cylinders 1; 1 I ; 2; 2 I are for a pressure-appropriate setting or adjustment and three pressure cylinders 3; 3 I ; 3 II to 5; 5 I ; 5 II for a repetitive printing on and off in each case mounted radially adjustable, while a pressure cylinder 6 is mounted non-adjustable centrally.
  • roller bearings 13; 13 I ; 14; 14 I of the adjustable pressure cylinder 1; 1 I ; 2; 2 I are in each embodiment of Figures 3 to 5 and the rolling bearings 15 I ; 15 II to 17 I ; 17 II of the pressure cylinder 3 I ; 3 II to 5 I ; 5 II in Figures 4 and 5 each outside against the wall bore 19; 19 I ; 20; 20 I and 21 I ; 21 II to 23 I ; 23 II through an eccentric bushing 26; 26 I to 30; 30 I limited with play with and without play after their adjustment, the eccentric bushings 26 to 30 in FIGS. 3 and 4 each representing an eccentric roller bearing outer ring of a roller bearing 31 to 35 equipped with a row of rolling elements, and the eccentric bushings 26 I to 30 I in FIG. 5 are each additionally arranged on a central roller bearing 31 I to 35 I.
  • the pressure cylinders 3 to 5 which can be switched on and off, are adjustable with two rows of rolling elements and an eccentric rolling bearing intermediate ring, which are adjustable with no play, compared to the rolling bearings 31; 31 I to 35; 35 I but expensive three ring bearings 36; 37; 38 equipped.
  • roller bearing 13 of a pressure cylinder 1 which can be adjusted to the correct pressure.
  • the roller bearing 31, which acts with its eccentric roller bearing outer ring and acts as an eccentric bushing 26, is pressed into the wall bore 19 or is inserted into the roller bearing 31 by means of strong supercooling which reduces the outside diameter
  • a play-free rolling bearing of the printing cylinder 1 is thus fulfilled as a prerequisite for quality printing, which also eliminates the need for the additional rings installed on the cylinder journal 7 for quality printing machines.
  • an annular groove 40 is arranged in the region of the separating joint 39 between the eccentric bushing 26 and the wall bore 19 in the latter, with an groove 40 on the outside of the machine frame 25 a screw thread 41 ending bore 42 is connected.
  • annular groove 40 I and the bore 42 I can also each be arranged in the eccentric bushing 26.
  • a connecting piece 43 of a manually operated hydraulic press 44 is screwed into the bore 42 in a pressure-tight manner.
  • the hydraulic pressure building up in the annular groove 40 after the actuation of the press 44 presses the eccentric bush 26 on one side due to the greater rigidity of the wall bore 19, the play required for its rotation creating together.
  • the pressure cylinder 1 After the pressure cylinder 1 has been set, the pressure is relieved via the press 44 and thus the eccentric bushing 26 is fixed without play.
  • the bore 42 I can be closed with a plug 45, as shown in dash-dot lines in FIG. 1.
  • FIG. 2 shows the application of the invention analogous to FIG. 1, representative of all pressure cylinders that can be switched on and off on the pressure cylinder 4 II of FIG. 5. Since the printing on and off, in contrast to the generally unique pressure-correct setting of pressure cylinders, is a Repeating operation is often a must, depending on the actuating mechanism actuated by a working cylinder 46 (FIG. 5) of the eccentric bushing 29 I fixedly arranged on the outer race of the rolling bearing 34 I , not shown hydraulic supply device, for example by means of a hydraulic hose 47, continuously via the connecting piece 48 and the bore 49 can be connected to the annular groove 50 in the region of the joint 51 between the eccentric bushing 29 I and the wall bore 22 II .
  • a working cylinder 46 FIG. 5
  • FIG. 2 like in FIG. 1, an alternative arrangement of the annular groove 50 I , including the bore 49 I , in the eccentric bushing 29 I is shown in dash-dot lines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP94103542A 1993-03-12 1994-03-09 Procédé et dispositif pour régler la position des cylindres d'impression Withdrawn EP0614759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308126 1993-03-12
DE19934308126 DE4308126A1 (de) 1993-03-12 1993-03-12 Verfahren und Vorrichtung zum Verstellen von Druckzylindern

Publications (1)

Publication Number Publication Date
EP0614759A1 true EP0614759A1 (fr) 1994-09-14

Family

ID=6482797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103542A Withdrawn EP0614759A1 (fr) 1993-03-12 1994-03-09 Procédé et dispositif pour régler la position des cylindres d'impression

Country Status (2)

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EP (1) EP0614759A1 (fr)
DE (1) DE4308126A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706880A3 (fr) * 1994-10-13 1997-01-22 Koenig & Bauer Ag Coussinet
DE102007020217A1 (de) 2007-04-28 2008-10-30 Koenig & Bauer Aktiengesellschaft Lagerung für einen Zylinder einer Rotationsdruckmaschine
EP1990192A2 (fr) 2007-04-28 2008-11-12 Koenig & Bauer Aktiengesellschaft Palier d'un cylindre d'une presse rotative
DE102008000204A1 (de) 2008-01-31 2009-08-06 Koenig & Bauer Aktiengesellschaft Lagerungen für einen Zylinder einer Rotationsdruckmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986086A (en) * 1959-02-27 1961-05-30 Miller Printing Machinery Co Antifriction eccentric journaling mounting for rotatable member
FR1566969A (fr) * 1967-05-25 1969-05-09
US3786749A (en) * 1972-04-07 1974-01-22 Rockwell International Corp Printing press cylinder support and control
DE4129840A1 (de) * 1991-09-09 1992-04-09 Koenig & Bauer Ag Verfahren und anordnung zum einstellen von exzenterbuchsen fuer zylinder von druckmaschinen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE213421C (fr) *
DE7129854U (de) * 1974-07-25 Koenig & Bauer Ag Vorrichtung zur Lagerung von Druckwerkszylindern in Stahlstichrotationsdruckmaschinen
US3732814A (en) * 1971-12-15 1973-05-15 Rockwell International Corp Bearer arrangement for offset printing press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986086A (en) * 1959-02-27 1961-05-30 Miller Printing Machinery Co Antifriction eccentric journaling mounting for rotatable member
FR1566969A (fr) * 1967-05-25 1969-05-09
US3786749A (en) * 1972-04-07 1974-01-22 Rockwell International Corp Printing press cylinder support and control
DE4129840A1 (de) * 1991-09-09 1992-04-09 Koenig & Bauer Ag Verfahren und anordnung zum einstellen von exzenterbuchsen fuer zylinder von druckmaschinen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706880A3 (fr) * 1994-10-13 1997-01-22 Koenig & Bauer Ag Coussinet
DE102007020217A1 (de) 2007-04-28 2008-10-30 Koenig & Bauer Aktiengesellschaft Lagerung für einen Zylinder einer Rotationsdruckmaschine
EP1990192A2 (fr) 2007-04-28 2008-11-12 Koenig & Bauer Aktiengesellschaft Palier d'un cylindre d'une presse rotative
DE102007020217B4 (de) * 2007-04-28 2011-11-10 Koenig & Bauer Aktiengesellschaft Lagerung eines Zylinders einer Rotationsdruckmaschine
DE102008000204A1 (de) 2008-01-31 2009-08-06 Koenig & Bauer Aktiengesellschaft Lagerungen für einen Zylinder einer Rotationsdruckmaschine
DE102008000204B4 (de) * 2008-01-31 2011-02-03 Koenig & Bauer Aktiengesellschaft Lagerung für einen Zylinder einer Rotationsdruckmaschine

Also Published As

Publication number Publication date
DE4308126A1 (de) 1994-09-15

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