EP0464309B1 - Machine à imprimer - Google Patents

Machine à imprimer Download PDF

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Publication number
EP0464309B1
EP0464309B1 EP91103980A EP91103980A EP0464309B1 EP 0464309 B1 EP0464309 B1 EP 0464309B1 EP 91103980 A EP91103980 A EP 91103980A EP 91103980 A EP91103980 A EP 91103980A EP 0464309 B1 EP0464309 B1 EP 0464309B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing
impression cylinder
format
cylinders
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 - Lifetime
Application number
EP91103980A
Other languages
German (de)
English (en)
Other versions
EP0464309A3 (fr
EP0464309A2 (fr
Inventor
Wilfried Wallmann
Günter Rogge
Wolfgang Knapheide
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 EP0464309A2 publication Critical patent/EP0464309A2/fr
Publication of EP0464309A3 publication Critical patent/EP0464309A3/xx
Application granted granted Critical
Publication of EP0464309B1 publication Critical patent/EP0464309B1/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
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/0008—Driving devices

Definitions

  • the invention relates to a printing press, preferably a flexographic printing press, with at least one printing stand, in which an impression cylinder and two format cylinders which can be adjusted thereon and which are provided with the inking rollers associated therewith are mounted, the impression cylinder being connected to the main drive and on the shaft journal of the impression cylinder , the format cylinder and the ink roller gears are attached, which are in print operation for synchronous engagement with each other.
  • Printing machines of this type are known in different embodiments, the format cylinders for executing the printing start and print shutdown movements and for executing long stroke movements for changing the format cylinders being mounted in slides which are displaceably guided in the printing press frame, and the inking rollers of the inking units in turn are also mounted in slides which are mounted on the format cylinder slides are slidably guided parallel to themselves.
  • a printing press of this type is set up for a specific print job in that the format roller prepared for this, or in the case of multi-color printing, the usually four or six different ones Color-printing format rollers are installed. Significant downtimes occur between job changes, which cause considerable costs, particularly for high-performance printing presses, due to the loss of production.
  • a printing press according to the preamble of claim 1 is known.
  • the impression cylinder can be coupled to the main drive by a bevel gear stage, whereby the two format cylinders, each of which can be adjusted separately for the impression cylinder, can also be driven by the main drive via bevel gear stages.
  • the two format cylinders can be uncoupled from the main drive by means of switchable couplings, and these can be accelerated by controllable servomotors in the state in which they are uncoupled from the main drive via the peripheral speed of the counter-pressure cylinder. If the format cylinders have been brought to the peripheral speed of the impression cylinder by the controllable servomotors, they are decoupled by switchable couplings and the format cylinder in question is coupled to the main drive via the clutch.
  • impression cylinder and the format cylinder are each connected to the main drive via special drive trains derived from the main drive and via bevel gear stages connected to them, with each format cylinder additionally having two clutches for coupling or uncoupling the main drive or its own controllable servo motor.
  • a device for producing printed products with changing impressions in complete printing with a further printing units is assigned to an impression unit which can be activated or activated at least two independently of one another and by a common impression cylinder which is wrapped by the paper web to be printed . has passivable printing units.
  • the drive of a distribution cylinder used here can be removed from the gear of a plate cylinder.
  • a rotary printing press for several colors which, for aligning the plate cylinder and the printing cylinder, has a control unit having a microprocessor for separate motors which drive the plate cylinder and the printing cylinder.
  • the control unit maintains alignment for printing while the rotary printing press is operating.
  • the object of the present invention is therefore to develop a printing press according to the preamble of claim 1 in such a way that its format cylinders can be coupled to and decoupled from the main drive with a simpler transmission and coupling technology.
  • printing of a new printing job of a completely different type can be started immediately after a printing job has ended, without the printing machine as a whole having to be shut down and converted.
  • the printing press according to the invention makes it possible to print the web running through the printing press at an undiminished speed following a print job in a different way on the basis of a new print job without any significant waste occurring between the two print jobs.
  • the printing press according to the invention can only consist of a printing stand in which a counter-pressure cylinder and two format cylinders which can be adjusted thereon are mounted with the ink rollers assigned to them.
  • a printing press of this type an order change in single-color printing can be carried out without the printing press having to be stopped and an operational interruption thereby occurring.
  • the impression cylinder running and the web to be printed running over it during the execution of an order the format cylinder for the following order is inserted into the print stand and connected to the bearings and moved via its format cylinder carriage to a position from which it meshes with the associated impression cylinder gear can be.
  • the new format cylinder intended for the next print order is accelerated to the synchronous speed by the servo motor, so that the format cylinder rotates at synchronous speed, i.e. a peripheral speed that is the speed of the web to be printed or the peripheral speed of the impression cylinder corresponds.
  • the format cylinder is activated of the last print job is moved to the "print stop” while the drive gear of the new format cylinder is brought into meshing engagement with the impression cylinder gear and into the print position.
  • the gear wheel of the new format cylinder can still be brought into a position relative to the impression cylinder while the last print job is being carried out, which corresponds to the usual printing shutdown.
  • the printing machine also allows both the gear wheel of the format cylinder of the current print job and the gear wheel of the format cylinder of the next print job to be brought into engagement with the gear wheels mounted on the shaft journals of the impression cylinder, but then the gear wheel of the format cylinder then engages for the following print job is in the printout position, unless printing - with exception - as explained in more detail below - with both format cylinders.
  • the impression cylinder gear which meshes with the format cylinder of the current order, is coupled to the impression cylinder, while the gear mounted on the other journal of the impression cylinder is initially freely rotatable.
  • the gear wheel of the format cylinder of the next print job can now be changed into a loose one corresponding to the print stop Be brought into engagement with the associated impression cylinder gear.
  • the servo motor now brings the new format cylinder and with it the still freely rotatable impression cylinder gear to the synchronous speed.
  • the impression cylinder gear is coupled to the main drive so that both format cylinders receive the synchronous speed via the main drive.
  • the format cylinder of the last job can now be moved to the print stop and at the same time the format cylinder of the new print job can be moved to the print job, so that one print job can be transferred to the other without interrupting the printing operation and practically without waste.
  • both format cylinders of a print stand can be operated by a single servo motor are driven.
  • the clutch brake combination is switched by the associated control system so that the clutch is closed and the brake is released on the side to be accelerated during startup.
  • the clutches and brakes of the two clutch and brake combinations on the two sides of the shaft are switched so that when the clutch is open, the brake only engages when the format cylinder of the last job moves into the print position and the impression cylinder gear driving it from the shaft journal of the impression cylinder has been uncoupled.
  • the format cylinder of the exchange the last job for a new one for the next but one print job.
  • these can expediently be adjusted offset by 180 degrees on the impression cylinder, preferably in a horizontal plane.
  • tooth or claw clutches that can be disengaged can be provided for coupling and uncoupling the gear wheels to the two shaft journals of the counter-pressure cylinder.
  • These couplings can be of any known type. Pneumatically or magnetically foldable couplings are expediently provided, of which a ring is held fixed to the frame.
  • six printing stands of the type described are expediently arranged one behind the other, each of which has two printing units, the two format cylinders each printing one color.
  • the servomotors of the format cylinders in the closer printing stands are controlled in such a way that they accelerate the format cylinders relative to one another at an exact angle, that is to say in register, with the same circumferential speed to the circumferential speed of the impression cylinders. This is done by corresponding joint control of all servomotors that can be driven with high accuracy at the same speed at the same angular position. This condition applies to both start-up and run-down.
  • the other printing unit can be converted to the next order during a current job and practically start with the new print job without waste.
  • the printing press according to the invention also allows printing only with individual printing stands or else to put both printing units of a printing stand into operation. If, for example, six printing stands are available for six-color printing, six-color printing can be carried out with three printing stands, in which both printing units print, while the printing units of the three other printing stands that are not in operation can then be converted, for example.
  • a printing stand with an impression cylinder 3 and two printing units 4, 5 is shown, which can be understood as a one or two color printing machine or as part of a multi-column multi-color printing machine, for example a multi-color printing machine with four or six stands.
  • the printing stand consists of the side frames 1, 2, which are connected to one another by crossbeams, not shown, and between which the impression cylinder 3 is mounted in the usual way.
  • the format cylinders 6, 7 of each printing unit are offset by approximately 180 degrees on opposite sides in an approximately horizontal plane in format cylinder carriages, not shown, which are guided in guides of the printing stand and can be adjusted by means of spindle drives on the impression cylinder 3 and can be removed from the latter.
  • format cylinder and inking roller carriages are also not shown in FIG. 2 and instead the format cylinders and inking rollers are mounted in the side frames.
  • the impression cylinder 3 is driven by the main drive shaft 10 and the worm gear 11, the Output shaft 12 is connected via the coupling 13, which compensates for any axial misalignment, to the shaft journal 14 of the counter-pressure cylinder 19 which projects beyond the side frame 1 of the pressure stand.
  • the main drive shaft 10 connects the printing stands of the printing press arranged in a row to one another, the shafts arranged between two printing stands being connected to the input and output shaft journals of the worm gear 11 also by known couplings 13 which compensate for a possible axial offset.
  • gears 17, 18 are freely rotatably supported on both sides thereof, which can be coupled to the shaft journals 14, 15 by toothed couplings 19, 20.
  • the tooth clutches 19, 20 are provided with rings (not shown) fixed to the frame, via which the tooth clutches 19, 20 can be switched pneumatically in a manner not shown.
  • the shaft journals of the format cylinders 6, 7 have gears 22, 23 on opposite sides, which can be brought into meshing engagement with the gears 17, 18 of the impression cylinder.
  • the format cylinders 6 or 7 can be accelerated to synchronous speed via the gears 17, 18.
  • the corresponding gear 17, 18, which is freely rotatably mounted on the shaft journal 14, 15 of the impression cylinder is coupled via the gear clutches 19, 20 to the impression cylinder and thus the main drive, so that the corresponding format cylinder 6, 7 then drives via the main drive shaft 10.
  • the servo motor 38 is then separated from the gear 32 or 33 by appropriate switching of the associated clutch-brake combination, both of which are also freely rotatable in the side frames 1, 2.
  • the gears 32, 33 then rotate freely with the format cylinders 8, 9 as long as they are running. However, if the brake of the clutch-brake combination 34.35 in question is switched, the format cylinder in question is stopped via the gear train 32,30,17 or 33,31,18 in question.
  • the web 50 to be printed runs over the guide roller 51 and the impression cylinder 3 in the manner shown. It runs in a corresponding manner over all the impression cylinders of the other printing stands, with corresponding guide rollers, not shown, being provided.
  • the printing stand is part of a multicolor printing machine, the format cylinder 7 printing the web 50 with one of a plurality of colors.
  • the format cylinder 6 is already prepared for the next print job. If the current print job is now finished, the format cylinder 6 is accelerated by the servo motor 38 in phase with all other format cylinders for the new print order of the further print stands to the synchronous speed of the web 50 to be printed.
  • the gear 17 is coupled to the shaft journal 14 of the impression cylinder 3 via the tooth coupling 19, while the format cylinder 6 and the corresponding format cylinders of the other print stands for the new print job are in the print stop. If the command to change the print job is now given, the still printing format cylinder 7 and the corresponding format cylinder of all other printing stands of the printing press are moved into the printing position, while all of the format cylinders for the new print job are simultaneously set on the respective impression cylinders.
  • the clutch brake combinations 34, 35 are switched in such a way that the servomotors are uncoupled and the brakes for braking the format cylinders are applied for the previous print job after the corresponding transmission gears 18 have been uncoupled from the impression cylinders via the associated gear clutches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Claims (3)

  1. Machine à imprimer, de préférence machine flexographique, comportant au moins un support d'impression (1) dans lequel sont logés un cylindre de contrepression (3) et deux cylindres de format (6, 7) applicables à celui-ci qui sont pourvus de rouleaux d'encrage (5, 8) associés à ceux-ci, le cylindre de contre-pression (3) étant relié à la commande principale (10), chaque cylindre de format (6, 7) pouvant être désaccouplé par un dispositif d'accouplement (19, 20) de la commande principale (10) du cylindre de contrepression (3) et pouvant être entraîné par un servo-moteur (38) apte à être commandé qui accélère te cylindre de format (6, 7) à la vitesse périphérique du cylindre de contrepression (3) et où le cylindre de format concerné (6, 7), lorsqu'il atteint la vitesse synchronisée, peut être accouplé de nouveau à la commande principale (10) du cylindre de contrepression (3), caractérisée en ce que, sur les deux tourillons d'arbre (14, 15) opposés l'un à l'autre du cylindre de contrepression (3), des roues dentées (17, 18) pouvant être accouplées à celui-ci sont logées de manière à pouvoir tourner librement, qui peuvent être mises en prise avec respectivement l'une des roues dentées (22, 23) des deux cylindres de format (6, 7) et en ce que le servo-moteur (38) est en liaison d'entraînement avec un arbre (36) qui peut être accouplé ou désaccouplé par des combinaisons d'accouplement et de freinage (34, 35) sélectivement à une roue dentée ou engrenage (30, 32; 31, 33) qui entraîne respectivement l'une des roues dentées (17, 18) logées sur les tourillons d'arbre (14, 15) du cylindre de contrepression (3).
  2. Machine d'impression selon la revendication 1, caractérisé en ce que des embrayages dentés ou à griffes désembrayables (19, 20) sont prévus pour accoupler et désaccoupler les roues dentées (17, 18) aux deux tourillons d'arbre (14, 15) du cylindre de contre-pression (3).
  3. Machine à imprimer selon l'une des revendications 1 ou 2, caractérisée en ce que les servo-moteurs (38) des cylindres de format (6, 7) de plusieurs supports d'impression sont commandés de façon à ce qu'ils accélèrent les cylindres de format (6, 7) avec plusieurs couleurs pour la même impression avec une précision angulaire, donc en respectant le registre, relativement les uns aux autres à la même vitesse à la vitesse périphérique due cylindre de contrepression (3).
EP91103980A 1990-05-28 1991-03-14 Machine à imprimer Expired - Lifetime EP0464309B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4017159 1990-05-28
DE4017159A DE4017159A1 (de) 1990-05-28 1990-05-28 Druckmaschine

Publications (3)

Publication Number Publication Date
EP0464309A2 EP0464309A2 (fr) 1992-01-08
EP0464309A3 EP0464309A3 (fr) 1994-01-26
EP0464309B1 true EP0464309B1 (fr) 1997-08-06

Family

ID=6407349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103980A Expired - Lifetime EP0464309B1 (fr) 1990-05-28 1991-03-14 Machine à imprimer

Country Status (6)

Country Link
US (1) US5184551A (fr)
EP (1) EP0464309B1 (fr)
JP (1) JPH04232053A (fr)
CA (1) CA2041333A1 (fr)
DE (2) DE4017159A1 (fr)
ES (1) ES2104624T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6038972A (en) * 1998-12-29 2000-03-21 Paper Converting Machine Company Quick change system for a press
US6289811B1 (en) 2000-01-11 2001-09-18 Paper Converting Machine Co. Method and apparatus for sampling and inspecting ink for a printing press

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108883A1 (de) * 1991-03-19 1992-09-24 Sengewald Karl H Gmbh Druckvorrichtung
JP3313451B2 (ja) * 1993-05-18 2002-08-12 株式会社小森コーポレーション 輪転印刷機の並列同期運転方法及びその装置
DE29502723U1 (de) * 1995-02-18 1996-06-20 Planatol Klebetechnik GmbH, 83101 Rohrdorf Behandlungsvorrichtung, insbesondere Querleimwerk
DE19627478C2 (de) * 1996-07-08 1998-04-23 Windmoeller & Hoelscher Druckmaschine
DE19640649A1 (de) * 1996-10-02 1998-04-16 Roland Man Druckmasch Antrieb für eine Bogendruckmaschine
US6220157B1 (en) 1999-03-23 2001-04-24 Paper Converting Machine Company Printing press with in-line central impression cylinders
EP1524114A2 (fr) * 2000-09-20 2005-04-20 Koenig & Bauer Aktiengesellschaft Unité d'impression
JP4702916B2 (ja) * 2001-03-05 2011-06-15 株式会社ミヤコシ 輪転印刷機
US20040143231A1 (en) 2003-01-21 2004-07-22 The Procter & Gamble Company Absorbent product containing absorbent articles each having different graphic
EP1728628A1 (fr) * 2005-06-01 2006-12-06 Kba-Giori S.A. Machine d'impression typographique à entraînements indépendants
DE102005033304A1 (de) * 2005-07-16 2007-01-18 Man Roland Druckmaschinen Ag Druckmaschine und Verfahren zum Betreiben einer Duckmaschine
DE102005050433A1 (de) * 2005-07-16 2007-01-25 Man Roland Druckmaschinen Ag Verarbeitungsmaschine und Verfahren zum Betreiben einer Verarbeitungsmaschine
US20100089264A1 (en) * 2008-10-10 2010-04-15 Alrick Vincent Warner Absorbent Articles Having Distinct Graphics And Apparatus And Method For Printing Such Absorbent Articles
US8776683B2 (en) 2009-06-02 2014-07-15 The Procter & Gamble Company Process for manufacturing absorbent products having customized graphics
EP2338682A1 (fr) * 2009-12-22 2011-06-29 KBA-NotaSys SA Presse d'impression intaglio dotée d'un chariot mobile supportant un cylindre Orlof

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0321360A1 (fr) * 1987-12-18 1989-06-21 Usinage Montage Et Assistance Technique U.M.A.T. Appareil d'impression offset fonctionnant en tandem

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US2425167A (en) * 1942-07-02 1947-08-05 Goss Printing Press Co Ltd Printing press
US2444547A (en) * 1943-09-14 1948-07-06 Goss Printing Press Co Ltd Printing machine
US3275112A (en) * 1964-07-06 1966-09-27 Wolverine Flexographic Mfg Co Reversible one way clutch
US3800698A (en) * 1973-06-28 1974-04-02 Harris Intertype Corp Disconnect arrangement for multi-unit printing press
DE2844418C3 (de) * 1978-10-12 1982-02-11 Albert-Frankenthal Ag, 6710 Frankenthal Rollen-Rotationsdruckmaschine mit einer Einrichtung zum Herstellen von Druckerzeugnissen mit wechselnden Eindrucken
US4369705A (en) * 1980-09-24 1983-01-25 Harris Corporation Printing press
DE3112995C2 (de) * 1981-04-01 1983-07-07 Form All Formularsatzmaschinen GmbH, 6124 Beerfelden Druckwerk für eine Kleinoffsetdruckmaschine
GB2146291B (en) * 1983-09-14 1987-10-14 Grace W R & Co Rotary printing press
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DE3510822C1 (de) * 1985-03-26 1986-07-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Rollenrotations-Offsetdruckmaschine mit fliegendem Plattenwechsel
IT1204804B (it) * 1986-02-17 1989-03-10 Cerutti Spa Off Mec Unita' di stampa supplementare del tipo flessografiche
JPS63115749A (ja) * 1986-11-05 1988-05-20 Dainippon Printing Co Ltd 印刷装置
JPH02103145A (ja) * 1988-10-13 1990-04-16 Mitsubishi Heavy Ind Ltd 印刷ユニット単独駆動装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321360A1 (fr) * 1987-12-18 1989-06-21 Usinage Montage Et Assistance Technique U.M.A.T. Appareil d'impression offset fonctionnant en tandem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6038972A (en) * 1998-12-29 2000-03-21 Paper Converting Machine Company Quick change system for a press
US6289811B1 (en) 2000-01-11 2001-09-18 Paper Converting Machine Co. Method and apparatus for sampling and inspecting ink for a printing press

Also Published As

Publication number Publication date
ES2104624T3 (es) 1997-10-16
DE4017159A1 (de) 1991-12-05
US5184551A (en) 1993-02-09
DE59108813D1 (de) 1997-09-11
CA2041333A1 (fr) 1991-11-29
EP0464309A3 (fr) 1994-01-26
EP0464309A2 (fr) 1992-01-08
JPH04232053A (ja) 1992-08-20

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