EP0807520B1 - Dispositif de basculement d'un cylindre d'impression - Google Patents

Dispositif de basculement d'un cylindre d'impression Download PDF

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Publication number
EP0807520B1
EP0807520B1 EP97107435A EP97107435A EP0807520B1 EP 0807520 B1 EP0807520 B1 EP 0807520B1 EP 97107435 A EP97107435 A EP 97107435A EP 97107435 A EP97107435 A EP 97107435A EP 0807520 B1 EP0807520 B1 EP 0807520B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
eccentric bearings
print
eccentric
bearings
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.)
Revoked
Application number
EP97107435A
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German (de)
English (en)
Other versions
EP0807520A3 (fr
EP0807520A2 (fr
Inventor
Claus Simeth
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
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0807520A2 publication Critical patent/EP0807520A2/fr
Publication of EP0807520A3 publication Critical patent/EP0807520A3/fr
Application granted granted Critical
Publication of EP0807520B1 publication Critical patent/EP0807520B1/fr
Anticipated expiration legal-status Critical
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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
    • B41F13/28—Bearings mounted eccentrically of the cylinder axis

Definitions

  • the invention relates to a pressure switching device according to the preamble of claim 1.
  • printing couple cylinders can be pivoted Eccentric bearings on and with other cylinders interacting with these cylinders can be stored in a parkable position.
  • the one with the Plate and counter-pressure cylinder interacting rubber cylinder by appropriate Swiveling the eccentric bearing against the impression cylinder on and turned off and opposite the plate cylinder interacting with the blanket cylinder turned on and off.
  • Paint facilities or painting plants in which the paint application by means of one opposite the impression cylinder can be turned on and off, the will also Forme cylinder via swiveling eccentric bearings (A and B side) in the machine frame carried.
  • Actuator For on and off Parking a forme cylinder in a painting device or in a coating unit is called Actuator a so-called double-acting, single-stage working cylinder (Pneumatic cylinder) is used, through which the forme cylinder to the impression cylinder can be switched on and off again.
  • pressure switching mechanism integrated adjustment devices is the center distance of the forme cylinder opposite the impression cylinder adjustable, which allows adaptation to different substrate thicknesses serves.
  • the mechanism described above for a printing unit of a sheet-fed offset printing press usually differs only in that a so-called actuator two-stage, double-acting cylinder is used to move over the release shaft the two eccentric bearings of the blanket cylinder in a total of three positions pivot, in a first position the blanket cylinder on both plate and also operated on impression cylinder, in a second position with the same Contact to the plate cylinder is turned off by the impression cylinder and in a third Position of both the impression cylinder and plate cylinder is turned off. Also at The pressure switching devices in sheetfed offset printing units are these pressure switching mechanisms Assigned adjusting devices, by means of which one of the substrate thickness dependent change in distance via appropriate pivoting of the eccentric bearing Blanket cylinder is achievable.
  • a disadvantage of the previously described pressure switch devices for printing units of sheet-fed offset printing machines or for coating facilities / coating units of sheetfed offset printing machines is that a extending shaft extending between the frame walls is to be provided, via which the pivoting movement of the eccentric bearings on the A and the B-side is caused by an actuator.
  • Such a course Move-off shaft in the vicinity of the printing zone between the blanket cylinder and the impression cylinder or the pressure zone between the forme cylinder and the impression cylinder (Coating device / coating unit) there is a risk that the incoming or outgoing sheet comes into contact with this shift shaft and lubricated if necessary.
  • there are additional ones Measures for substrate management required which increases the construction effort elevated.
  • From DE-A-3 904 336 is a device for turning on and off Printing cylinder known in which the blanket cylinder on both sides in pivotally mounted eccentric bearings and each of the Eccentric bearing is pivotable via its own working cylinder.
  • a printing unit for a rotary printing press is known from DE-U-9 320 813, where the cylinders are turned on and off via eccentrics. The two ends drives for swiveling are assigned to the cylinder.
  • this Pressure switch device the actuating device either indirectly (e.g. with interposition a gear pair) acts on the eccentric bearing (s) or the interaction to the pressure defining stop with the corresponding one Swivel mechanism is chosen structurally unfavorable. There is also an inclination the cylinder against each other (across the format width of different line pressure) not possible when the machine is running.
  • the object of the present invention is therefore a pressure switching device according to the Preamble of claim 1 to develop such, so that avoiding the above Disadvantages mentioned offering an inexpensive and flexible adjustment options Solution is created.
  • both on the A and on the B side of the Printing machine both an actuating element acting to pivot the respectively assigned eccentric bearing as well as an adjusting device for each interacting with the actuating element Stop is provided. This is what happens for pressure switching
  • the actuating elements on the A and B sides are triggered simultaneously.
  • To set the Forme cylinder opposite the impression cylinder or the blanket cylinder opposite the impression cylinder according to the substrate thickness are the most A and B-side arranged adjustment devices (remotely controllable servomotors) accordingly controlled at the same time.
  • the actuators adjusting the stops are also driven by different position amounts can be, so that there is an intended inclination of the forme cylinder or the blanket cylinder compared to the impression cylinder interacting with it can be achieved.
  • This serves to adapt the line print to the substrate or depending on the subject to be printed.
  • a different and across the format width especially one-sided stronger setting of the forme or blanket cylinder compared the impression cylinder is used in particular in coating facilities or coating units Use, for example, to apply a uniformly strong, uniformly thick paint film on the To produce printing material.
  • the present invention can be used both in painting devices or coating units apply, in which a forme cylinder compared to a sheet-guiding impression cylinder is arranged on and off, as well as in the printing units of sheetfed offset printing machines, in which a blanket cylinder opposite the impression cylinder as well as the plate cylinder can be turned on and off.
  • a two-stage, double-acting cylinder as an actuator used on A and B side.
  • Figures 1 to 4 for example, the A side of the pressure switching device according to the invention on a printing unit, not shown, of a coating device, a coating unit or a sheetfed offset machine.
  • a cylinder 1 is both on the A- also rotatable on the B side of the printing unit via the pins in eccentric bearings 2 added, these eccentric bearings 2 pivotable in side walls, not shown of the printing unit are stored.
  • Figures 1 to 4 with MZ are the center of the cylinder 1 and marked the center of the eccentric bearing 2 with ML (swivel or rotation axis).
  • Eccentric bearing 2 mounted on the frame walls can thus be the cylinder 1 in its center distance compared to the cylinders not shown in Figures 1 to 4 (Fig. 5).
  • the eccentric bearings 2 on the A and B sides each have a lever designed as an arm 3, at the free end of which the piston rod of a one- or two-stage design, double-acting working cylinder 4 is articulated.
  • the working cylinder 4 is supported with a pivot point from the frame.
  • Both on the A and B sides are the Levers 3 of the eccentric bearings 2 are each assigned an adjustable stop 6 via an actuator 5, so that the pivoting movement of the eccentric 2 / the lever 3 in each case Extended position of the piston rod of the working cylinder 4 can be limited.
  • the actuator 5 or that of the actuator 5 adjustable relative to the lever 3 of the Eccentric bearing 2 movable stop 6 can be an electrically remote controlled Act spindle drive, the rotatable threaded spindle by a corresponding screwed to the frame is screwed through.
  • the pressure is turned on by extending the piston rod of the working cylinder 4 of the cylinder 1 by the lever 3 again in contact with the stops 6 of the actuators 5 located on both the A and B sides.
  • the cylinders 4 (A and A) are also pressurized B side) simultaneously or synchronously.
  • the working cylinders 4 were therefore designed as so-called single-stage, double-acting working cylinders.
  • two-stage, double-acting working cylinders results in a two-stage pressure circuit, in which, for example, a blanket cylinder of an offset printing unit both against and against the impression cylinder as well as against the plate cylinder can be switched off.
  • a blanket cylinder of an offset printing unit both against and against the impression cylinder as well as against the plate cylinder can be switched off.
  • the piston rod here Working cylinder 4 occupies the so-called center position and consequently the lever 3 Eccentric bearings 2 have neither contact with the stops 6 nor with the stops 7.
  • Figure 5 shows the possible positions of a blanket cylinder G relative to the Impression cylinder D and plate cylinder P of an offset printing unit. It is indicated furthermore the sheet-like printing material resting on the impression cylinder D. Above The so-called pressure-on position, in which the Blanket cylinder G both contact the plate cylinder P and the impression cylinder D takes. To the right is shown a position in which by pivoting the eccentric bearing 2 (FIGS. 1 to 4) of the blanket cylinder in the same direction G stronger on the impression cylinder D with constant contact compared to the Plate cylinder P is employed. This corresponds to a greater pressure provided by the blanket cylinder G compared to the impression cylinder D. The positions of the blanket cylinder G with different provision (center distance) compared to the impression cylinder D correspond to the positions of the eccentric bearings 2 according to FIGS. 1 and 2.
  • the first pressure-down position is described at the bottom left in FIG Activate the working cylinder 4 ( Figures 1 to 4) of the blanket cylinder G is switched off from the impression cylinder D, but still contact to the plate cylinder P having.
  • Such a position of the blanket cylinder G corresponds to the position of the Eccentric bearing 2 according to FIG. 4.
  • An action on the other working chambers of the working cylinders 4 causes a further shutdown movement by pivoting the eccentric bearing 2 the blanket cylinder G, so that it is now also from the plate cylinder P is turned off. This corresponds to a pivoting of the eccentric bearing 2, starting from 4 to the position according to FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Presses (AREA)
  • Paper (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Claims (4)

  1. Dispositif de commutation pour un cylindre d'une machine d'impression, avantageusement le cylindre porte-blanchet (G) d'une machine d'impression offset ou le cylindre porte-cliché de dispositifs de laquage, le cylindre (1) étant monté, des deux côtés, par l'intermédiaire, à chaque fois, de paliers excentriques (2) montés de façon pivotante dans les parois du bâti, par rapport aux cylindres (P,D) coopérant avec celui-ci, et, pour la commutation, un dispositif d'actionnement (4) ainsi que des butées (6) limitant le pivotement des paliers excentriques (2) et réglables pour le réglage de l'écartement des axes étant associés aux paliers excentriques (2),
    caractérisé en ce que, aussi bien du côté A que du côté B du cylindre (1), il est associé, à chaque fois, aux paliers excentriques (2), un dispositif d'actionnement (4), ainsi que, pour le réglage de l'écartement des axes de la position correspondant à l'impression des paliers excentriques (2), à chaque fois, une butée réglable (6), les butées (6), sur le côté A et le côté B du cylindre (1), étant à chaque fois associées à des servomoteurs (5) du même type, et en ce que les butées (6), sur le côté A et le côté B du cylindre (1), peuvent être réglées aussi bien à des valeurs identiques qu'à des valeurs différentes par l'intermédiaire des servomoteurs associés (5).
  2. Dispositif de commutation selon la revendication 1,
    caractérisé en ce que les dispositifs d'actionnement des paliers excentriques (2), sur le côté A et le côté B du cylindre (1), sont réalisés sous forme de vérins de travail à double effet à un étage.
  3. Dispositif de commutation selon la revendication 1,
    caractérisé en ce que les dispositifs d'actionnement des paliers excentriques (2), sur le côté A et le côté B du cylindre (1), sont réalisés sous forme de vérins de travail (4) à double effet à deux étages.
  4. Dispositif de commutation selon une des revendications précédentes,
    caractérisé en ce que, pour activer le dispositif d'actionnement (4), sur le côté A et le côté B du cylindre (1), il est prévu une commande activant simultanément et de la même façon les dispositifs d'actionnement (4).
EP97107435A 1996-05-17 1997-05-06 Dispositif de basculement d'un cylindre d'impression Revoked EP0807520B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29608887U DE29608887U1 (de) 1996-05-17 1996-05-17 Druckschaltvorrichtung
DE29608887U 1996-05-17

Publications (3)

Publication Number Publication Date
EP0807520A2 EP0807520A2 (fr) 1997-11-19
EP0807520A3 EP0807520A3 (fr) 1998-01-28
EP0807520B1 true EP0807520B1 (fr) 1999-06-30

Family

ID=8024076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107435A Revoked EP0807520B1 (fr) 1996-05-17 1997-05-06 Dispositif de basculement d'un cylindre d'impression

Country Status (3)

Country Link
EP (1) EP0807520B1 (fr)
AT (1) ATE181700T1 (fr)
DE (2) DE29608887U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856906A1 (de) * 1998-12-10 2000-06-15 Roland Man Druckmasch Doppeldruckwerk einer Rotationsdruckmaschine
DE19963944C1 (de) * 1999-12-31 2001-06-13 Koenig & Bauer Ag Verfahren zum Einstellen einer Walze einer Druckmaschine
DE102007011045B4 (de) * 2006-03-24 2011-12-22 Heidelberger Druckmaschinen Ag Druckmaschine
DE102007061392A1 (de) 2007-12-19 2009-06-25 Koenig & Bauer Aktiengesellschaft Verfahren zum Positionieren eines Plattenzylinders beim Plattenwechsel an bogenverarbeitenden Maschinen, insbesondere Bogendruckmaschinen und Vorrichtung hierfür

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830537A (en) * 1954-04-19 1958-04-15 Fred R Jacoby Automatic control release and contact mechanism for printing presses
DE6942142U (de) * 1969-10-28 1970-01-29 Karl Raes Vorrichtung zum an- und abstellen des druckzylinders von offsetmaschinen
IT1071535B (it) * 1976-10-20 1985-04-10 Bugnone Aldo Dispositivo di supporto per rulli..particolarmente per macchine da stampa
DE2736175A1 (de) * 1977-08-11 1979-02-22 Koenig & Bauer Ag Druckwerk
DE3614027A1 (de) * 1986-04-25 1987-10-29 Roland Man Druckmasch Stellvorrichtung fuer fuenfzylinder-druckwerke von offset-rotationsdruckmaschinen
DD271083B5 (de) * 1988-03-03 2000-04-20 Koenig & Bauer Ag Vorrichtung zur An- und Abstellung der Druckwerkszylinder
DE4232163C3 (de) * 1992-09-25 2001-09-06 Koenig & Bauer Ag Vorrichtung zum Aufrechterhalten einer eingestellten Anpressung einer Farbauftragswalze an einem Formzylinder einer Rotationsdruckmaschine
DE4241567A1 (de) * 1992-12-10 1994-06-16 Roland Man Druckmasch Vorrichtung zur Druckeinstellung eines mit einer aufschiebbaren Hülse ausgestatteten Druckzylinders
DE9320813U1 (de) * 1993-12-24 1995-02-09 Albert-Frankenthal Ag, 67227 Frankenthal Druckwerk für eine Rotationsdruckmaschine
DE4401289C2 (de) * 1994-01-18 1997-05-07 Roland Man Druckmasch Zylinderanstellvorrichtung
DE4447585C2 (de) * 1994-07-01 2001-06-28 Mitsubishi Heavy Ind Ltd Lagerung für die Druckwalze einer Druckmaschine

Also Published As

Publication number Publication date
DE59700236D1 (de) 1999-08-05
EP0807520A3 (fr) 1998-01-28
DE29608887U1 (de) 1996-08-22
ATE181700T1 (de) 1999-07-15
EP0807520A2 (fr) 1997-11-19

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