EP0321360B1 - Offsetdruckmaschine in Tandembauweise - Google Patents

Offsetdruckmaschine in Tandembauweise Download PDF

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Publication number
EP0321360B1
EP0321360B1 EP88403227A EP88403227A EP0321360B1 EP 0321360 B1 EP0321360 B1 EP 0321360B1 EP 88403227 A EP88403227 A EP 88403227A EP 88403227 A EP88403227 A EP 88403227A EP 0321360 B1 EP0321360 B1 EP 0321360B1
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EP
European Patent Office
Prior art keywords
cylinder
cylinders
blanket cylinder
plate
printing
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
EP88403227A
Other languages
English (en)
French (fr)
Other versions
EP0321360A1 (de
Inventor
Nicolas Kakko-Chiloff
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.)
Conseil Vente Service
Usinage Montage et Assistance Technique UMAT
Original Assignee
Conseil Vente Service
Usinage Montage et Assistance Technique UMAT
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 Conseil Vente Service, Usinage Montage et Assistance Technique UMAT filed Critical Conseil Vente Service
Priority to AT88403227T priority Critical patent/ATE61285T1/de
Publication of EP0321360A1 publication Critical patent/EP0321360A1/de
Application granted granted Critical
Publication of EP0321360B1 publication Critical patent/EP0321360B1/de
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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters
    • B41F33/025—Counters
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/46—Printing units for inserting latest news
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/08—Rotary lithographic machines for offset printing using one transfer cylinder co-operating with several forme cylinders for printing on sheets or webs, e.g. sampling of colours on one transfer cylinder
    • 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 present invention relates to an offset printing apparatus operating in tandem.
  • the object of the present invention is to solve these various problems by providing a tandem offset device of particularly simple design and safe operation by virtue of a judicious arrangement of the various printing, inking and wetting elements on the one hand and the use of recent technical means such as semi-continuous inking, alcohol wetting on a touchscreen whose operations reduce the need for adjustment during printing, on the other hand.
  • DE-U-84 10 619 shows an offset printing apparatus operating in tandem and which has been used to state the preamble of claim 1 appended hereto.
  • the apparatus according to the invention offers the advantage that there is no interruption of the pressure on the web during the passage of printing from one series to the next and that there is also no discontinuity of inking and wetting.
  • This apparatus comprises, at its upper part in the usual manner, an inking device 3 with semi-continuous ink intake, an alcohol wetting device 4, a large diameter inking and wetting touch cylinder 5, two tables 6, 7 traversed transversely for the distribution of the ink and for erasing the streaks and carryovers and a group of loading and distributing rollers 8 tangent to each other and with the touching cylinder 5. All these cylinders have horizontal axes and transverse, that is to say perpendicular to the direction of travel of the sheet 2 and they are rotatably mounted at their ends on the uprights of the frame 1 directly or by means of parts forming supports.
  • the device comprises two cylinders 9, 10 of horizontal and transverse axes respectively disposed on either side of the vertical transverse plane P passing through the axis of the touching cylinder 5 which each carry an offset plate which can be supplied with ink and water by the upper assembly ending with the touching cylinder 5.
  • the two plate cylinders 9, 10 are located below the touching cylinder 5 and they are brought into contact alternately with this following touching cylinder 5 the series to be printed. In the position illustrated in fig. 1, the right plate cylinder 10 is in contact with the touch cylinder 5 and it therefore intervenes for the printing of the series in progress, while the left plate cylinder 9 is moved away from the touch cylinder 5 in the position of waiting.
  • This counterpart cylinder 13 is pressed against the blanket cylinder 11 by mechanical pneumatic or hydraulic means such as vertical cylinders 14 so that the printing deposited by the offset plate of the plate cylinder 10 which is in the printing position, is perfectly transferred with a good strike by the blanket 12 on the tablecloth to be printed 2.
  • the arrangement which has been described above corresponds to that of a three-cylinder offset printing machine which is conventional, except that the blanket cylinder 11 is fixed in space while in known offset devices it is generally the plate cylinder 9 or 10 which is fixed.
  • the blanket cylinder 11 is rotated from a transverse shaft 15 via a gear train 16, 17, 18 as shown in FIG. 2.
  • the gear 16 is directly linked to the inking group via the shaft 15, the rotation of which is ensured by the main shaft of the machine.
  • the gear 17 is an intermediate gear while the gear 18 is fixed to the blanket cylinder 11.
  • the pitch diameter of the gear 18 corresponds exactly to the diameter of cords 19 integral with the blanket cylinder 11 and therefore to the diameter of the format developed by the print.
  • the pitch diameter of the gear 16 is determined such that the linear speed of the inking exactly matches the linear speed of the printing.
  • the plate cylinder 10 which intervenes for the printing of the current series is rotated from the blanket cylinder 11 by means of a gear 21 integral with the blanket cylinder 11 and a gear 22 secured to the plate cylinder 10, gears whose pitch diameters are identical to that of the gear 18. Furthermore, each of the plate cylinders 9, 10 is secured to cords 23 which are supported in position d printing on the cords 19 of the blanket cylinder 11. The other plate cylinder 9 which is in the standby position is not rotated and the gear 24 of which it is integral and which is identical to the gear 22 is not engaged with gear 21 of the blanket cylinder 11. In addition, it is under pressure neither with the touch cylinder 5 nor with the blanket cylinder 11.
  • a starter cylinder 25 lined with rubber.
  • Another launching cylinder 26 is disposed on the other side of the blanket cylinder 11 and it is symmetrical with the launching cylinder 25, with respect to the vertical and transverse plane passing through the axes of the touching cylinder 5 and blanket cylinder 11. The cylinder plate holder 10 which is active for printing is then moved away from the second launcher cylinder 26.
  • the two launching cylinders 25, 26 are rotated from the blanket cylinder 11 by means of a transmission mechanism 27 comprising a chain 28 passing over a toothed wheel 29 secured to the shaft of the blanket cylinder 11 on return toothed wheels 31 mounted on the frame 1 of the device and on a toothed wheel 32 integral with the input shaft 33 of an electromagnetic clutch 34 whose output shaft 35 is coupled to the shaft 36 of the starter cylinder 25 or 26.
  • a transmission mechanism 27 comprising a chain 28 passing over a toothed wheel 29 secured to the shaft of the blanket cylinder 11 on return toothed wheels 31 mounted on the frame 1 of the device and on a toothed wheel 32 integral with the input shaft 33 of an electromagnetic clutch 34 whose output shaft 35 is coupled to the shaft 36 of the starter cylinder 25 or 26.
  • Each of the starter cylinders 25, 26 further comprises a differential 37 corrected by a servomotor 38.
  • the cinematographic chain thus formed is calculated so that the peripheral speed of each starter cylinder 25, 26 is identical to that of the blanket cylinder 11, when
  • the two plate-carrying cylinders 9, 10 are mounted together at each of their ends on the same pendulum 39 which is articulated around the axis of the blanket cylinder 11 and which rests on a pair of vertical cylinders 41 and 42.
  • the two plate cylinders 9, 10 are carried respectively by slides 43 which are pushed under pressure by respective jacks 44, 45 carried by the pendulum 39.
  • These jacks 44, 45 act on respective first rocker arms 46, 47 with two opposite arms articulated around axes 48, 49 and acting by their second arms on the slides 43.
  • These slides 43 may or may not come into contact with respective upper stops 51, 52 so as to fix the positions of the plate-carrying cylinders 9, 10 when they are in the active printing position.
  • stops 51, 52 can be adjusted horizontally and longitudinally by means of a horizontal threaded rod 53 driven in rotation by any suitable means.
  • Each of the jacks 44, 45 pushes the slide 43 downwards so that the cords 23 of the plate cylinder 9, 10 come into contact with the cords 19 of the blanket cylinder 11, this contact corresponding to the normal transfer pressure between the plate and the blanket.
  • the right jack 45 is pressurized and each slide 43 carrying the right plate cylinder 10 is in abutment against the right stop 52.
  • the other left jack 44 is depressurized and the slides 43 carrying the door cylinder - left plate 9 are spread below the left stop 51.
  • All the jacks 41, 42 and the stops 51, 52 are arranged and adjusted so that, when the pendulum 39 comes to rest on one of these stops 51 or 52 and the blanket cylinder 11 rolls cord on cord with the plate cylinder 9 or 10, the contact of this plate cylinder with the touch cylinder 5 corresponds to good inking and good wetting.
  • the blanket cylinder 11 has on its shaft an encoder 54 with three functions, namely transmission of a counting pulse, transmission of a cyclic code per revolution of the printing cylinder and transmission of an incremental pulse train .
  • the counting pulse controls an electronic counter 55 whose function is to deliver sequence pulses to preset accounts.
  • Cyclic code pulses synchronize the operation of an electronic tracking device 56 with the machine cycle.
  • This machine locating device also receives pulses emitted by detectors 57, 58 actuated by cams 59, 61 carried by the plate-carrying cylinders 9, 10.
  • the electronic information coming from the counter 55 and from the electronic locating device 56 are introduced into a programmable controller 62 which governs all the sequential commands of the device.
  • the encoder 54 activates the electronic counter 55 of the down-counting type, the recycling of which is automatic at the passage of zero on a preset account corresponding to the numbers of formats to be printed.
  • This counter 55 emits a pulse when it reaches a preset account at a value which allows all the sequences of the change of series to have time to be done. This pulse is emitted for example 250 cycles before the end of the draw of the current series (zero of the counter). It will be assumed that the right plate cylinder 10 is then in the printing position, as shown in FIG. 1 and that the left plate cylinder 9, then stopped, has been fitted with its new plate. The left plate cylinder 9 is then supported on the left starter cylinder 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Soil Working Implements (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Color Electrophotography (AREA)
  • Printing Methods (AREA)

Claims (7)

1. Tandem-Offsetdrucker mit einem Gestell (1), an dessen Oberteil ein Farbwerk (3) und eine Befeuchtungsvorrichtung (4) zum Aufbringen eines Druckfarbfilms bzw. eines Flüssigkeitsfilms zur Befeuchtung auf eine Farbwalze (5) mit horizontaler Achse angebracht sind, die drehbar am Ge­stell (1) gelagert ist, und an dessen Unterteil eine Druckfilzwalze (11) und eine mit dieser in Berührung ste­hende Gegenwalze (13) angebracht sind, wobei zwischen die­sen Walzen eine Druckbahn (2) läuft und die Achsen dieser Walzen sich in der Horizontal- und Querrichtung, d.h. senkrecht zur Druckbahn (2), erstrecken, wobei die Achse der Druckfilzwalze (11) und die der Farbwalze (5) in der selben vertikalen Ebene liegen und zwei Druckplattenwalzen (9, 10) mit Horizontal- und Querachse jeweils auf der einen bzw. der anderen Seite der die Achsen der Farb- (5) und Druckfilzwalzen (11) schneidenden, vertikalen Ebene (P) auf einer Zwischenhöhe zwischen diesen beiden Zylin­dern angebracht sind, gekennzeichnet durch
- einen Träger (39) der beiden Druckplattenwalzen (9, 10), der schwenkbar um die Achse der Druckfilzwalze (11) ange­bracht ist,
- zwei Förderwalzen (25, 26) mit Horizontal- und Querach­sen, die etwas nach unten bzw. nach außen in Bezug auf die jeweilige Druckplattenwalze (9, 10) angeordnet sind, und
- Steuereinrichtungen zum Schwenken des Trägers (39) der Druckplattenwalzen (9, 10), zur Ausübung von Druck auf je­den der Zylinder und zum Drehantrieb der Förderwalzen (25, 26), so daß jede der beiden Druckplattenwalzen (9, 10) ab­wechselnd entweder in Druckstellung gebracht wird, in der sie unter Druck gleichzeitig mit der oberen Farbwalze (5) und der unteren Druckfilzwalze (11) in Berührung ist, nach dem sie zuvor mit gleicher Umfangsgeschwindigkeit wie die Druckfilzwalze (11) in Drehung versetzt worden ist und in einer Winkelstellung blockiert worden ist, oder aber in eine Wartestellung im Stillstand gebracht wird, in der die Druckplattenwalze (9, 10) von der Farbwalze (5) und der Drucktuchwalze (11) getrennt wird und gegen die entspre­chende Förderwalze (25, 26) gedrückt wird, um den Aus­tausch des Druckstocks zu ermöglichen.
2. Drucker gemäß Anspruch 1, dadurch gekennzeichnet, daß die Druckfilzwalze (11) von einer Querwelle (15) mittels eines Mehrfachgetriebes (16, 17, 18) in Drehung versetzt wird, wobei ein erstes Getriebe (16) mittels der Welle (15), die von der Hauptwelle der Maschine in Drehung ver­setzt wird, direkt mit dem Farbwalzenblock verbunden ist, ein zweites Getriebe (17) ein Zwischengetriebe bildet, während das dritte Getriebe (18) an der Druckfilzwalze (11) befestigt ist und deren wirksamer Durchmesser genau dem Durchmesser der mit der Druckfilzwalze (11) verbun­denen Borte (19) und somit dem Durchmesser des Druck­formats entspricht, und die Druckplattenwalze (9, 10), die für die laufende Druckreihe verantwortlich ist, von der Druckfilzwalze (11) mittels eines mit der Druckfilzwalze (11) verbundenen Getriebes (21) und eines mit der Druck­plattenwalze (10) verbundenen Getriebes (22) in Drehung versetzt wird, wobei diese Getriebe (2, 22) den selben wirksamen Durchmesser haben, der mit dem des dritten Ge­triebes (18) identisch ist, und wobei jede Druckplatten­walze (9, 10) mit einer Borte (23) verbunden ist, die in Druckstellung von der Borte (19) der Druckfilzwalze (11) gestützt wird.
3. Drucker gemäß einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die zwei Förderwalzen (25, 26) von der Druckfilzwalze (11) mittels einer Übertragungsein­richtung (27) mit einer Kette (28) in Drehung versetzt werden, wobei die Kette über ein mit der Welle der Druckfilzwalze (11) verbundenes Zahnrad (29), über am Vorrich­tungsgestell (1) angebrachte Getriebezahnräder (31) sowie über ein Zahnrad (32) läuft, welches mit der Eintritts­welle (33) einer elektromagnetischen Kupplung (34) verbun­den ist, deren Austrittswelle (36) mit der Welle (36) der Förderwalze (25, 26) gekuppelt ist, wobei jede der Förder­walzen (25, 26) außerdem ein von einem Servomotor (38) korrigiertes Differential (37) umfaßt.
4. Drucker gemäß einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die zwei Druckplattenwalzen (9, 10) mit jedem ihrer Enden an einem gemeinsamen Schwinghe­bel (39) angebracht sind, der an der Achse der Druck­filzwalze (11) angelenkt ist und der auf einem vertikalen Zylinderpaar (41, 42) sitzt, wobei die zwei Druckplatten­walzen (9, 10) am Schwinghebel (39) jeweils von Schiebern (43) getragen werden, auf welche durch entsprechende, vom Schwinghebel (39) getragene Zylinder (44, 45) Druck aus­geübt wird.
5. Drucker gemäß Anspruch 4, dadurch gekennzeichnet, daß die Zylinder (44, 45) entsprechende erste Schwenkarme (46, 47) mit zwei gegenüberliegenden Armen betätigen, die an den Achsen (48, 49) angelenkt sind und über ihre zweiten Arme die Schieber (43) betätigen, wobei diese Schieber (43) mit entsprechenden hochstehenden Anschlägen (51, 52) einen Kontakt herstellen oder lösen können, so daß die Stellung jeder der Druckplattenwalzen (9, 10) fixiert wird, wenn sie sich in der aktiven Druckstellung befindet.
6. Drucker gemäß Anspruch 5, dadurch gekennzeichnet, daß die Anschläge (51, 52) mittels einer in Drehung versetz­ten, horizontalen Schraubenspindel (53) in der Horizontal- und Längsrichtung verstellbar sind.
7. Drucker gemäß einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die Druckfilzwalze (11) auf ihrer Welle eine Codiereinrichtung (54) mit drei Funktio­nen aufweist, nämlich der Abgabe eines Zählimpulses, der Abgabe eines zyklischen Codes pro Druckwalzenumdrehung und der Abgabe einer Schrittimpulsfolge, wobei der Zählimpuls einen elektronischen Zähler (55) steuert, der Folgeimpulse zu voreingestellten Berechnungen liefern soll, und wobei die Impulse des zyklischen Codes den Betrieb einer elek­tronischen Registervorrichtung (56) mit dem Takt der Ma­schine abstimmen, die darüberhinaus Impulse von Detektoren (57, 58), erhält, welche durch Nocken (59, 60) auf den Druckplattenwalzen (9, 10) betätigt werden.
EP88403227A 1987-12-18 1988-12-16 Offsetdruckmaschine in Tandembauweise Expired - Lifetime EP0321360B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88403227T ATE61285T1 (de) 1987-12-18 1988-12-16 Offsetdruckmaschine in tandembauweise.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8717752A FR2624792B1 (fr) 1987-12-18 1987-12-18 Appareil d'impression offset fonctionnant en tandem
FR8717752 1987-12-18

Publications (2)

Publication Number Publication Date
EP0321360A1 EP0321360A1 (de) 1989-06-21
EP0321360B1 true EP0321360B1 (de) 1991-03-06

Family

ID=9358059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88403227A Expired - Lifetime EP0321360B1 (de) 1987-12-18 1988-12-16 Offsetdruckmaschine in Tandembauweise

Country Status (7)

Country Link
US (1) US4919046A (de)
EP (1) EP0321360B1 (de)
AT (1) ATE61285T1 (de)
DE (1) DE3861959D1 (de)
ES (1) ES2021455B3 (de)
FR (1) FR2624792B1 (de)
HK (1) HK68094A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111363A1 (de) * 2001-03-06 2002-09-19 Koenig & Bauer Ag Druckwerk

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017159A1 (de) * 1990-05-28 1991-12-05 Windmoeller & Hoelscher Druckmaschine
DE4021895C2 (de) * 1990-07-10 1994-02-17 Roland Man Druckmasch Druckeinheit einer Offsetdruckmaschine zur Durchführung eines fliegenden Druckplattenwechsels
DE4112925A1 (de) * 1991-04-19 1992-10-22 Frankenthal Ag Albert Druckeinheit fuer eine rotationsdruckmaschine
JP3718275B2 (ja) * 1996-01-12 2005-11-24 株式会社小森コーポレーション 印刷機
US5904093A (en) * 1997-08-07 1999-05-18 Heidelberger Druckmaschinen Ag Apparatus and method for changing images during operation of a printing press
US5806427A (en) * 1997-08-29 1998-09-15 Goss Graphic Systems, Inc. Printing press having carriage mounted interchangeable plate cylinders
JP2964238B2 (ja) * 1998-03-06 1999-10-18 株式会社東京機械製作所 オフセット印刷機構及びこの印刷機構を有するオフセット印刷機
WO2010020284A1 (de) * 2008-08-21 2010-02-25 Wifag Maschinenfabrik Ag Rotationsdruckmaschine für rasche produktionswechsel
CN102245392A (zh) * 2008-11-13 2011-11-16 Rtdt有限责任公司 具有印版滚筒驱动的平版印刷单元
CN103786420B (zh) * 2014-02-21 2016-05-25 中山火炬职业技术学院 带有独立水墨系统双印版交替印刷的平版印刷机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1414107A (en) * 1915-07-29 1922-04-25 Wood Newspaper Mach Corp Late-news-printing device
US1545194A (en) * 1923-04-06 1925-07-07 Hoe & Co R Printing seal or edition headings and late or stop-press news
US2425167A (en) * 1942-07-02 1947-08-05 Goss Printing Press Co Ltd Printing press
US2598414A (en) * 1946-04-19 1952-05-27 Addressograph Multigraph Pivotal frame mounting structure for offset printing machine cylinders
US4369705A (en) * 1980-09-24 1983-01-25 Harris Corporation Printing press
DE3313219C2 (de) * 1983-04-13 1985-04-18 Metronic Gerätebau GmbH & Co, 8702 Veitshöchheim Druckeinheit für eine Rotationsdruckmaschine
DE8410619U1 (de) * 1984-04-05 1985-06-20 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Druckwerk einer Offsetrotationsdruckmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111363A1 (de) * 2001-03-06 2002-09-19 Koenig & Bauer Ag Druckwerk
DE10111363B4 (de) * 2001-03-06 2005-03-24 Koenig & Bauer Ag Druckwerk

Also Published As

Publication number Publication date
EP0321360A1 (de) 1989-06-21
FR2624792A1 (fr) 1989-06-23
ES2021455B3 (es) 1991-11-01
DE3861959D1 (de) 1991-04-11
US4919046A (en) 1990-04-24
ATE61285T1 (de) 1991-03-15
FR2624792B1 (fr) 1990-05-18
HK68094A (en) 1994-07-22

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