EP0087625B1 - Dispositif pour l'application des rouleaux toucheurs sur le cylindre porte-plaque des machines d'impression et pour l'enlèvement et le réglage de ces rouleaux - Google Patents

Dispositif pour l'application des rouleaux toucheurs sur le cylindre porte-plaque des machines d'impression et pour l'enlèvement et le réglage de ces rouleaux Download PDF

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Publication number
EP0087625B1
EP0087625B1 EP83101216A EP83101216A EP0087625B1 EP 0087625 B1 EP0087625 B1 EP 0087625B1 EP 83101216 A EP83101216 A EP 83101216A EP 83101216 A EP83101216 A EP 83101216A EP 0087625 B1 EP0087625 B1 EP 0087625B1
Authority
EP
European Patent Office
Prior art keywords
plate cylinder
rollers
bearing
cam
adjustment
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.)
Expired
Application number
EP83101216A
Other languages
German (de)
English (en)
Other versions
EP0087625A1 (fr
Inventor
Joachim Herzel
Claus Simeth
Rudolf Mitze
Robert Ortner
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6157198&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0087625(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT83101216T priority Critical patent/ATE21065T1/de
Publication of EP0087625A1 publication Critical patent/EP0087625A1/fr
Application granted granted Critical
Publication of EP0087625B1 publication Critical patent/EP0087625B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B41F31/301—Devices for tripping and adjusting form rollers
    • 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
    • B41F31/32—Lifting or adjusting devices

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Devices for switching on, off and setting are necessary in order to be able to switch the application rollers on and off in relation to the plate cylinder when printing starts and stops. Maintaining the center distances between the application rollers and the plate cylinder is necessary for constant operating conditions so that the contact pressure remains constant and the inking or dampening of the printing plate can be controlled.
  • a device is described in French patent specification 1 207883, which allows the application rollers to be placed together on the plate cylinder or removed from it.
  • it contains an annular cam disc, which is centered on the axis of the plate cylinder on an extension of the eccentric plate cylinder bearing.
  • the cam disk can be rotated over a limited angle by means of a linkage, with spacers between the cam disk and the application rollers following the cam shape.
  • the position of the application rollers with respect to the plate cylinder can be adjusted with the aid of a pre-adjustment. This is possible with the help of wedge elements and set screws that are stored in the housing of the printing press.
  • CH-PS-231 504 describes a device on rotary printing presses for lifting application rollers.
  • the application rollers can be turned on and off here via a cam plate mounted centrally on the plate cylinder axis on part of the plate cylinder bearing.
  • the application rollers are mounted in forks, which in turn are attached to swivel plates mounted in the machine housing. The forks allow radial and tangential adjustments of the application rollers on the plate cylinder.
  • DE-PS-2 627 963 describes a device on printing presses for adjusting the application rollers on the plate cylinder. It has a support disk attached to the eccentric bearing of the plate cylinder. The support disc is provided with cam segments that compensate for the eccentric movement of the plate cylinder in relation to the application rollers by the pivoting movement of the support disc.
  • the object of the invention is to provide a device with which an existing inclination of the printing plate mounted on the plate cylinder can be compensated for by a corresponding adjustment of the plate cylinder axis, without the contact pressure between the application rollers and the plate cylinder and, on the other hand, between the plate cylinder adjustment Plate cylinder and blanket cylinder changed along the cylinder axis.
  • the object is achieved in that the bearing journal of the plate cylinder is mounted within its eccentric bearings in additional bearing means which enable a linear movement relative to these eccentric bearings, and in that the annular cams are rotatably seated directly on the bearing journal and thus independently of the eccentric bearing.
  • the annular cam disks are thus arranged according to the invention rotatable about the plate cylinder axis on the bearing journal. An adjustment movement of the application rollers during an adjustment movement of the plate cylinder by means of eccentric rotation is thus avoided.
  • the solution according to the invention brings the additional advantage that when compensating for a printing plate inclination, in which the plate cylinder is inclined relative to the rubber cylinder due to the additional bearing means provided within the eccentric bearing, only slight compressive stress changes occur in the axial direction between the plate cylinder and rubber cylinder, since these bearing means make a straight line movement in the tangential direction possible in the contact zone between plate and blanket cylinder.
  • the plate cylinder of an offset printing press is shown here as an example.
  • the representations in FIGS. 1 and 2 show sections through the mounting of the plate cylinder 1.
  • the cam disk 3 is mounted centrally on the journal 2 to control the inking rollers 5. It cooperates with the centering means 7 of the inking rollers 5 indicated here.
  • the drive for pivoting consists of a hydraulic or pneumatic cylinder 9, the piston rod of which engages an extension of the cam plate 3.
  • the extension of the cam disc 3 is assigned an adjustment stop 11 and an end stop 13.
  • the adjustment stop 11 is used to determine the position of the inking rollers 5 on the plate cylinder 1.
  • the end stop 13 is used to determine the storage position of the inking rollers 5.
  • the drive movement is therefore used for turning on and off Parking the inking rollers 5 only between these two stops 11, 13.
  • FIG. 2 shows the corresponding assignment of the dampening application rollers 6 and their adjusting means 8 via the cam plate 4 on the bearing journal 2 to the plate cylinder 1.
  • the associated drive consists of a pneumatic or hydraulic cylinder 10, an adjustment stop 12 for determining the starting position and an end stop 14 for fixing the parking position of the dampening rollers 6.
  • the curve shape of the cams 3 and 4 determines the setting of the application rollers 5 and 6.
  • three positions are shown schematically.
  • a setting for a normal plate cylinder lift or worn application rollers or possibly application rollers with a smaller diameter is shown in FIG. 3A.
  • the adjustment stop 11 for determining the position of the position should be drivable. He has retracted and enables the cam plate 3 to pivot so far with the aid of the drive 9 that the adjusting means 7 of the inking roller 5 abuts against a curve area of the cam plate 3 which is at a correspondingly small distance from the plate cylinder axis about the inking roller 5 in the desired manner to turn on the plate cylinder 1.
  • the center distance between the inking roller 5 and the plate cylinder 1 must be increased.
  • the adjustment stop 11 is extended in the direction of the cam disk 3.
  • the cam 3 can no longer be pivoted so far and the adjusting means 7 of the inking rollers 5 are at a point on the curve with a greater distance from the plate cylinder axis.
  • the desired setting between inking roller 5 and plate cylinder 1 can also be maintained here only by pivoting the cam plate 3.
  • the cam plate 3 is pivoted against the end stop 13 as shown in FIG. 3C.
  • the end stop 13, which defines the position of the parking cams on the cam plate 3, relative to the adjusting means 7 of the inking rollers 5, is normally set only once. Therefore, it makes sense to make it manually operable, since it is only required for installation.
  • FIGS. 3 B and 3 C represent the basic position from FIG. 3 A.
  • the setting of the application roller 5 with the cam disc 3 applies mutatis mutandis to all other application rollers 5, 6 and the associated cam discs 3, 4.
  • two identical adjusting devices 3, 4, 9-14 are necessary on both the dampening unit and the inking unit.
  • FIG. 4 shows a superimposition of the section 0-O from FIG. 2 in the upper half and U-U from FIG. 1 in the lower half.
  • the cams 3, 4 are arranged on the journal 2 independently of the eccentric bearing 20 of the plate cylinder 1 within the machine housing 15 and rotatably mounted.
  • the bearing of the cams 3, 4 is not shown in detail. They work together with schematically indicated adjustment means 7, 8 on the axes of the application rollers 5, 6.
  • the function of the cams 3, 4 as a spacer for determining the center distance between the application rollers 5, 6 and the plate cylinder 1 is clear here.
  • the structure of the adjusting means 7, 8 is shown in more detail in FIG. 5.
  • the applicator rollers 5 they are mounted in swivel arms 17 with respect to the axis of the friction roller 16.
  • the axis of the friction roller 16 is fixed in the plane parallel to the machine housing, while the axes of the application rollers 5 can be moved by means of the swivel arms 17.
  • the application rollers 5 can at a constant center distance, the z. B. eccentrics between the grater roller 16 and the applicator rollers 5 should be adjustable to be moved around the grater 16 without changing the rolling conditions between the rollers.
  • the curve areas of the cams 3 must be for each corresponding edition Points of set screws 18 on the applicator rollers 5, 6 have slopes so designed that when the cam disc 3, 4 rotates, an identical change in the center distance on both applicator rollers 5, 6 with respect to the plate cylinder 1 is produced.
  • the basic setting of the application rollers 5, 6 to the plate cylinder 1 is carried out by screwing or unscrewing the set screws 18 into the swivel arms 17.
  • the set screws 18 are secured against twisting by the contact force of the compression springs. This means that the same level can be set for all application rollers 5, 6 starting from the parking position. Adjustment is also possible if, for any reason, the roller diameters should change differently or individual application rollers would have to be replaced, for example.
  • the simultaneous setting of all application rollers 5, 6, for example, to a stronger plate cylinder lift or to a changed roller adjustment, but also during operation in the event of a pressure interruption in order to park and restart the application rollers in the same adjustment position that existed before the pressure interruption, is simple and quick with the help the cams 3, 4 made.
  • the coaxial arrangement of the cams 3, 4 directly on the bearing journal 2 means that the employment of the application rollers 5, 6 on the plate cylinder 1 is always largely preserved.
  • An example of a movement of the bearing journal 2 within the eccentric bearing 20 is shown in FIG.
  • the mounting of the plate cylinder is built into the eccentric bearing 20 and consists of a part 21 which is arranged centrally to the plate cylinder axis and which has a straight guide inside and the actual plate cylinder bearing 22.
  • the plate cylinder bearing 22 is flattened on two sides of its circumference and can be countered by the adjusting bolt 23
  • Spring unit 24 can be moved slightly within the straight guide of part 21.
  • the second plate cylinder bearing, not shown here, is also designed.
  • the applicator rollers 5, 6 lying in front of the plate cylinder 1 pivot in the direction of displacement, while the applicator rollers 5, 6 lying behind the plate cylinder 1 move towards one another and the parallel applicator rollers 5, 6 remain stationary.
  • the change in the assignment is shown in FIG. 7 for the case of pressure provision using the eccentric bearing 20.
  • the size of the adjustment path has been greatly exaggerated.
  • the center of the cylinder at point B is pivoted around the center of the bearing at point A to B '.
  • a straight line movement from B to B ' would also be conceivable, which would then result in the same initial and final state with regard to the geometry.
  • the grater axis at point C is fixed.
  • the adjustment path of the bearing journal 2 within the eccentric bearing 20 is 0.5 mm on both bearings in the opposite direction in each case.
  • the conversion of such a displacement of the plate cylinder 1 in the direction of the maximum effect on the applicator roller 5 results in a tangential displacement of 0.8 at its radius of 30 mm, a grater with a 40 mm radius and a plate cylinder 1 with a 140 mm radius on the applicator roller 5 mm.
  • the slope of the displacement curve of cam 3 from 1/40 to the calculated tangential displacement then results in a radial displacement of 20!
  • the application roller 5 is turned on or off when the plate cylinder 1 f.Lm 20 f.Lm approaches or is removed. This is a maximum displacement that rarely occurs in reality, since the application rollers 5, 6 are distributed approximately over 180 ° on the circumference of the plate cylinder 1. Even if such a shift occurs, as can already occur with changes in the pressure supply via the eccentric bearing 20, a roll strip that has the width of the flattened roll surface of 10 mm can be used as in application rolls with a rubber surface with a roll pitch of about 0.5 mm generate, have little impact. They correspond to a widening or narrowing of the roller strip by 0.1 mm.
  • the end stops 13, 14 for the parking position and the set screws 18, which are then designed as spring bolts, can also be made drivable and remotely controlled.
  • the entire setting process can be carried out in data memory and kept ready for electronic control according to characteristic curves which are adapted to the cam disks 3, 4 and the operating conditions. Then it is e.g. B. possible to automatically compensate for the effects of the tangential and, via the cams 3, 4, also radial adjustment of the application rollers 5, 6 when the plate cylinder is adjusted to the adjustment path.
  • the swivel path of the cams 3, 4 can be optimized in relation to the position of the parking cam d. H. the curve adjustment can also be kept as short as possible.
  • the position of the starting position can then be chosen as close as possible to the parking cam.
  • the wear condition of the application rollers 5, 6 can also be controlled by an automated control of the contact force of the individual application rollers via the compression spring 19, and effects on the printing process, that is to say the application of ink or dampening solution, can be compensated for by targeted adjustment of individual rollers.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (4)

1. Dispositif pour l'application, l'enlèvement et le réglage de rouleaux toucheurs (5, 6) sur le cylindre porte-plaque (1) de machines imprimantes, le cylindre porte-plaque (1) étant monté au moyen de tourillons (2) dans des paliers excentrés (20) dans le carter de la machine et les rouleaux toucheurs pouvant être réglés par rapport au cylindre porte-plaque et pouvant être appliqués contre le cylindre porte-plaque ou enlevés de celui-ci avec des disques à cames (3, 4) annulaires et pouvant tourner coaxialement autour de l'axe du cylindre porte-plaque, les disques à cames (3, 4) possédant des zones de came pour le réglage simultané de l'écartement axial de tous les rouleaux toucheurs (5, 6) par rapport au cylindre porte-plaque (1) dans la zone d'une position d'application et jusqu'à une position d'enlèvement, et pouvant pivoter contre des butées d'extrémités (11, 14), caractérisé en ce que le tourillon (2) du cylindre porte-plaque (1) est monté à l'intérieur de son palier excentré (20) dans des moyens de palier supplémentaires (21-24), permettant un mouvement en ligne droite par rapport à ce palier excentré (20), et en ce que les disques à cames (3, 4) annulaires sont montés en pouvant tourner directement sur le tourillon (2) et, ainsi, indépendamment du palier excentré (20).
2. Dispositif selon la revendication 1, caractérisé en ce que, à chaque fois, des disques à cames propres (3, 4) sont associés aux rouleaux d'application d'encre (5) et aux rouleaux (6) de mouillage, et en ce que les disques à cames (3, 4) sont munis chacun de commandes (9, 10) propres commandables.
3. Dispositif selon la revendication 1, caractérisé en ce que des butées d'extrémité sont conçues comme des butées de réglage (11, 12) pour la détermination de la position d'application, en étant commandables ensemble ou séparément, commandables à distance et déplaçables automatiquement dans une position initiale.
4. Dispositif selon la revendication 1, caractérisé en ce que, pour le réglage des rouleaux toucheurs (5, 6), sont prévues des vis de réglage (18) coopérant avec les mêmes sous forme de parties de réception de came, lesquelles sont montées sur des bras de support (17) qui peuvent pivoter autour des axes de rouleaux frotteurs (16) disposés en avant des rouleaux toucheurs (5, 6) et peuvent être pré-contraints par l'intermédiaire de ressorts de pression (19) en direction des disques à cames (3, 4) (figure 5).
EP83101216A 1982-03-03 1983-02-09 Dispositif pour l'application des rouleaux toucheurs sur le cylindre porte-plaque des machines d'impression et pour l'enlèvement et le réglage de ces rouleaux Expired EP0087625B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101216T ATE21065T1 (de) 1982-03-03 1983-02-09 Vorrichtung zum an-, ab- und einstellen von auftragwalzen am plattenzylinder von druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3207622 1982-03-03
DE3207622A DE3207622C2 (de) 1982-03-03 1982-03-03 Vorrichtung zum An-, Ab- und Einstellen von Auftragwalzen am Plattenzylinder von Druckmaschinen

Publications (2)

Publication Number Publication Date
EP0087625A1 EP0087625A1 (fr) 1983-09-07
EP0087625B1 true EP0087625B1 (fr) 1986-07-30

Family

ID=6157198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101216A Expired EP0087625B1 (fr) 1982-03-03 1983-02-09 Dispositif pour l'application des rouleaux toucheurs sur le cylindre porte-plaque des machines d'impression et pour l'enlèvement et le réglage de ces rouleaux

Country Status (4)

Country Link
US (1) US4503771A (fr)
EP (1) EP0087625B1 (fr)
JP (1) JPS58201654A (fr)
DE (1) DE3207622C2 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458591A (en) * 1982-09-30 1984-07-10 Harris Graphics Corporation Rotary printing press
DE3434670A1 (de) * 1984-09-21 1986-04-03 Basf Ag, 6700 Ludwigshafen Vorrichtung zum belegen eines formzylinders mit einer wickelplatte
DE3926087C1 (fr) * 1989-08-07 1990-10-04 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
JP2938491B2 (ja) * 1990-01-10 1999-08-23 株式会社小森コーポレーション 印刷機のインキ装置
DE4012965C1 (de) * 1990-04-24 1991-02-07 Roland Man Druckmasch Vorrichtung zum An-, Ab- und Einstellen von Auftragwalzen
DE9110806U1 (de) * 1991-08-31 1991-10-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum Einstellen von Auftragwalzen am Plattenzylinder von Rotationsdruckmaschinen
US5461978A (en) * 1994-09-27 1995-10-31 Chou; Ching-Ho Printing press
JPH08216376A (ja) * 1995-02-09 1996-08-27 Nagano Japan Radio Co 印刷機の処理ローラ用リリース装置
DE19523378A1 (de) * 1995-06-30 1997-01-02 Koenig & Bauer Albert Ag Bogenoffsetrotationsdruckmaschine
US5979324A (en) * 1998-04-15 1999-11-09 Heidelberger Druckmaschinen Ag Position controller for a rotatable adjuster in a printing press
US6347585B1 (en) * 1998-08-04 2002-02-19 Goss Graphic Systems, Inc. Variable gap stabilizer
JP3556130B2 (ja) * 1999-08-03 2004-08-18 リョービ株式会社 オフセット印刷機
DE10023605A1 (de) * 2000-05-15 2002-06-27 Roland Man Druckmasch Vorrichtung zum Einstellen einer Auftragwalze am Plattenzylinder einer Druckmaschine
DE50208517D1 (de) * 2001-12-06 2006-11-30 Koenig & Bauer Ag Verfahren zum betrieb eines farbwerkes oder feuchtwerkes in einer druckmaschine
DE102004021628B4 (de) * 2004-05-03 2007-09-06 Koenig & Bauer Aktiengesellschaft Lageranordnung in einer Druckmaschine für eine Walze
JP4771211B2 (ja) 2005-08-05 2011-09-14 スズキ株式会社 プリテンショナ機構を備えたシートベルト装置の取付け構造
DK2998116T3 (en) * 2014-09-16 2019-03-18 Bieffebi Srl DEVICE AND PROCEDURE FOR ASSEMBLING A TANGENTIAL FLEXOTRY PRINT WITHOUT TENSION
DE102021210416A1 (de) 2021-09-20 2022-10-27 Zf Friedrichshafen Ag Hebergetriebe für eine Druckmaschine

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DE199350C (fr) *
CH231504A (de) * 1943-04-06 1944-03-31 T Maschinenbau Aktiengesellsch Einrichtung an Rotationsdruckmaschinen zum Abheben der Auftragswalzen.
US2568761A (en) * 1946-03-22 1951-09-25 Miehle Printing Press & Mfg Pressure adjustment and trip for printing cylinders
US2751843A (en) * 1952-08-29 1956-06-26 Time Inc Self-adjusting form roll
US2853943A (en) * 1953-12-15 1958-09-30 Harris Intertype Corp Plate cylinder and inking roller throwoffs
BE569617A (fr) * 1957-07-23
FR1207883A (fr) * 1958-07-22 1960-02-19 Color Metal A G Perfectionnements apportés aux presses à imprimer
US2986086A (en) * 1959-02-27 1961-05-30 Miller Printing Machinery Co Antifriction eccentric journaling mounting for rotatable member
CH423827A (de) * 1963-09-07 1966-11-15 Planeta Veb Druckmasch Werke Vorrichtung zum Einstellen der Auftragwalzen an Druckmaschinen
US3448686A (en) * 1966-12-05 1969-06-10 Miehle Goss Dexter Inc Form roller setting and control means
US3691956A (en) * 1970-11-20 1972-09-19 North American Rockwell Flat adjusting and throw-off arrangement for form roller in printing press
DD125552B1 (de) * 1976-03-22 1989-03-01 Hans Johne Vorrichtung zum einstellen der auftragwalzen von farb- und feuchtwerken
DE2627963C2 (de) * 1976-06-23 1978-06-29 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung an Druckmaschinen zum Verstellen der mit dem Plattenzylinder in Kontakt verbringbaren Farbauftragwalzen
JPS5952143B2 (ja) * 1978-07-18 1984-12-18 三菱電機株式会社 エレベ−タの乗場表示装置
JPS56501558A (fr) * 1979-11-05 1981-10-29
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US4407198A (en) * 1982-04-15 1983-10-04 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for securing pure skew adjustment of a plate cylinder in a sheet-fed rotary printing press

Also Published As

Publication number Publication date
US4503771A (en) 1985-03-12
JPH0323343B2 (fr) 1991-03-28
EP0087625A1 (fr) 1983-09-07
DE3207622A1 (de) 1983-09-15
DE3207622C2 (de) 1985-02-21
JPS58201654A (ja) 1983-11-24

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