EP0113601B1 - Offset-Rotationsdruckmaschine für variable Formate - Google Patents

Offset-Rotationsdruckmaschine für variable Formate Download PDF

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Publication number
EP0113601B1
EP0113601B1 EP19830402160 EP83402160A EP0113601B1 EP 0113601 B1 EP0113601 B1 EP 0113601B1 EP 19830402160 EP19830402160 EP 19830402160 EP 83402160 A EP83402160 A EP 83402160A EP 0113601 B1 EP0113601 B1 EP 0113601B1
Authority
EP
European Patent Office
Prior art keywords
cassette
cylinders
cylinder
printing machine
offset 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
Application number
EP19830402160
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English (en)
French (fr)
Other versions
EP0113601A1 (de
Inventor
Serge 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.)
A T N
Original Assignee
A T N
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 A T N filed Critical A T N
Publication of EP0113601A1 publication Critical patent/EP0113601A1/de
Application granted granted Critical
Publication of EP0113601B1 publication Critical patent/EP0113601B1/de
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
    • 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
    • B41F13/44—Arrangements to accommodate interchangeable cylinders of different sizes to enable machine to print on areas of different sizes
    • 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
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs

Definitions

  • the present invention relates to a variable format rotary offset printer.
  • variable format offset rotary printers the format change was first made by replacing the printing cylinders.
  • the fastening devices being, for mechanical reasons (rigidity, absence of play, etc.), quite complicated, it is generally limited to the replacement of two cylinders, namely the plate cylinder and the blanket cylinder.
  • the change times of the cylinders, which were burdened by complicated disassembly, were relatively long and therefore incompatible with the short runs which characterize the use of the offset process.
  • Two systems of cassettes are currently known, namely three-cylinder cassettes and two-cylinder cassettes.
  • the complete set of printing cylinders namely the plate cylinder, the blanket cylinder and the back pressure cylinder, is replaced with each change of format.
  • These three cylinders have the same diameter and they mesh with each other.
  • This system is universal because it allows you to print the front and back of a tablecloth without intermediate drying.
  • the back-pressure cylinder is ordered and adapted to the format: there is therefore no smearing. It is understood, however, that this system is necessarily expensive and therefore very limiting as regards the number of formats used.
  • format change systems by replacing cassettes are very penalizing by their rigidity of use.
  • the machines can only be designed for one of the two systems and if, for example, a three-cylinder system has been chosen, each format change, unless complicated disassembly, is condemned to replace the three cylinders.
  • the present invention aims to remedy these drawbacks by providing a format change system with an integrated cassette, but which can be easily deposited if necessary, of particularly simple design and allowing the simple and rapid replacement of one, two or three printing cylinders as required, and which favors, by the arrangement of the cylinders, great simplicity, precision and reliability of the pressurization mechanism which is actuated by a single control without play.
  • this variable format rotary offset printer comprising a frame carrying, at its upper part, an inking device, a wetting device and at least one touching cylinder, and a cassette carrying the superimposed printing cylinders, namely an upper plate cylinder which can be pressed under the touching cylinder or cylinders, an intermediate blanket cylinder and a lower back pressure cylinder, these superimposed cylinders being tangent to each other in the printing position, and means for moving horizontally this cassette, is characterized in that the shaft of each of the three printing cylinders superimposed vertically journals, at each of its ends, in a slide mounted vertically sliding between two vertical slides provided in an upright of the cassette, the slides housed in the same amount of the cassette are spaced vertically from each other by intermediate shims of height c corresponding to the distance between the horizontal shafts which depends on the format of the printing, the two lower sliders on which the shaft of the lower backpressure cylinder spins, being respectively supported on the upper ends of the rods of vertical cylinders carried by a horizontal cross
  • FR-A-2 350 198 describes and already shows a horizontal spacing of offset cylinders by means of adjustable columns.
  • these adjustable columns are not used for the variation of format but have the sole purpose of adjusting the. pressure between said offset cylinders by means of pressurizing cylinders which slide in the frame of the printer. Consequently, these jacks do not constitute any means for extracting these cylinders from a cassette of said frame in which they are arranged.
  • the horizontal crosspiece carrying the two vertical cylinders acting on the lower slides laughers is adjustable in height by means of vertical rods moved up or down by a mechanism provided at the bottom of the cassette.
  • each upper slide in which the shaft of the plate cylinder revolves is applied against an upper block itself pressed against an upper stop provided on the frame of the machine and the three blocks have housings opening into their lower or upper horizontal faces and in which are arranged compression springs having different compression forces so that the spring housed between the lower wedge and the lower slide is the weakest, the spring disposed between the wedge intermediate and the intermediate slide is the strongest and the spring disposed between the upper wedge and the upper slide exerts a force between those exerted by the previous two.
  • the rotary offset printer shown in the drawing comprises a frame 1 which consists of two parallel vertical uprights between which the various rotary printing cylinders extend and which is traversed longitudinally, from right to left, by the web 7 of a material on which printing is performed.
  • This frame 1 carries, at its upper part, in the usual manner, an inking device 2 and a wetting device 3, known in themselves, which are intended to apply layers of ink and of a solution respectively.
  • dampening generally water
  • This cylinder 4 of transverse axis is itself tangent to an intermediate blanket cylinder 5 which is located in turn above and tangent to a lower back-pressure cylinder 6, the sheet of printing material 7 passing between the blanket 5 and back-pressure cylinders 6.
  • the upper plate cylinder 4 is tangent to one or more touching cylinders ensuring the distribution of the ink and fountain solution.
  • the rotary printing press comprises two touch rollers 8 and 9 which receive the ink and the wetting solution, generally water, from the inking device 2 and the printing device respectively. wetting 3.
  • the rotary printer according to the invention comprises a cassette 11 on which are mounted the three printing cylinders 4, 5, 6 and which is movable horizontally, in the longitudinal direction, that is to say from the right towards the left in the drawing and vice versa.
  • the three printing cylinders 4, 5, 6 are simply stacked vertically between two slides 12, 13 which extend vertically on each of the opposite uprights 14 of the cassette 11.
  • This cassette 11 has a U shape and has a core lower horizontal 15 connecting the bases of its two uprights 14.
  • the shafts 4a, 5a, 6a of the respective cylinders 4, 5, 6 rotate at their ends in respective slides 16, 17, 18 which are mounted to slide vertically between the slides 12, 13 provided in each of the uprights 14 of the cassette 11.
  • Each of the upper slides 16 in which the shaft 4a of the upper plate cylinder 4 revolves is spaced from the intermediate slide 17, in which the shaft 5a of the blanket cylinder 5 revolves, by a wedge 19, and it is also spaced, by an immediately upper wedge 21, a stop 22 provided on the amount of the frame 1 of the device.
  • Each intermediate slider 17 is in turn kept spaced, by a wedge 23, from the corresponding lower slider 18, in which the shaft 6a of the counter-pressure cylinder 6 journals and which is in turn supported on the upper front face of the rod of a vertical jack 24.
  • This jack 24, preferably hydraulic, is carried by a lower cross member 25 which extends between the two uprights 14 of the cassette 11.
  • This cross member 25 can be adjusted in height, depending on the format, by means of a vertical rod 26, such as a screw, provided at each end of the cross member and whose vertical position can be adjusted by means of a known device designated as a whole by the reference 27.
  • the lengths shims 19, 23 are calculated with precision as a function of the format and they are such that under the effect of the two hydraulic jacks 24 carried by the cross-member 25, the pressures between the cylinders 4, 5 6, in the printing position, are correct.
  • the wedges 21, 19 and 23 have respective housings 28, 29, 31 opening into their lower (or upper) horizontal faces and in which are housed compression springs 32, 33, 34, such as Belleville washers, the forces of which are carefully chosen. When the pressure of the jacks 24 is released, these springs separate the slides 16, 17, 18 from one another and offset the pressures between the cylinders 4, 5, 6 in this way without play.
  • compression springs 32, 33, 34 such as Belleville washers
  • the spring 34 the weakest, which is disposed between the shim 23 and the lower slide 18, compresses first and allows, with a low pressure in each jack 24, to pull the sheet of paper 7, without the touching cylinders 8, 9 and the plate cylinders 4 and blanket 5 are not in contact.
  • the spring 32 which is disposed between the upper wedge 21 and the upper slide 16, is compressed for an average pressure of the jack 24, which allows, in a second start-up phase, the inking of the plate of the cylinder 4, without transferring the print to the blanket cylinder 5.
  • the final pressurization of the jack 24 finally causes the compression of the third spring 33, disposed between the intermediate shim 19 and the intermediate slide 17, which allows the transfer of the printing to the blanket cylinder 5 then from the latter to the web. of paper 7.
  • the intermediate shim 6 is slightly shorter, by a few hundredths of a millimeter, than the theoretical length.
  • the pressure shift operation can be done in two stages. We first pass from high pressure to low pressure in each of the cylinders 24, which decompresses the springs 33 and 32.
  • the plate cylinder 4 moves away from the touch cylinders 8, 9 and it remains inked, this which protects it from outside agents.
  • the blanket cylinder 5 moves away from the plate cylinder 4 and no longer transfers the printing; on the other hand, it still remains in contact with the paper sheet 7 since the spring 34 is compressed, which makes it possible to discharge it and consequently to simplify the washing operations thereafter.
  • the final offset of the pressures is obtained by the total release of the pressure in each jack 24 and the decompression of each of the springs 34.
  • the rotary drive control is fixed and it is centered on the axis of the touch cylinder 8. It transmits the movement to the three printing cylinders by gears, when they are put in place according to the format by the screws 26 .
  • the integrated cassette 11 can be moved horizontally as a whole, to the left, in the position indicated in phantom in the drawing, by means of horizontal and longitudinal screws 35 controlled by a transverse shaft 36.
  • the offset position indicated in phantom corresponds disassembly of the various printing cylinders.
  • the slides 12, 13 lead to an opening in the upper part of the cassette 11, which makes it easy to extract the cylinders, using the vertical screws 26 as a lifting cylinder.
  • the introduction of the new cylinder (s) is done by the reverse operation, by lowering the cross-member 25 by means of the screws 26, then by the positioning of the cassette 11 as a whole against the stops 37, 38, by rotation horizontal and longitudinal screws 35.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Claims (6)

1. Offset-Rotationsdruckmaschine für variable Formate mit einem Gestell, das in seinem oberen Teil eine Schwärzungsvorrichtung, eine Anfeuchtungsvorrichtung und mindestens eine Farbwalze trägt, und einem Kästchen, das die übereinanderliegenden Druckwalzen, d.h. eine obere, mit Platten versehene, evt. unter der/den Farbwalzen angeordnete Walze, eine Blanchet-Zwischenwalze und eine untere Gegendruckwalze trägt, wobei sich diese übereinanderliegenden Walzen in Druckstellung einander berühren, und Mitteln zur Versetzung des Kästchens in horizontaler Richtung, dadurch gekennzeichnet, dass die Welle (4a, 5a, 6a) von jeder von den drei vertikal übereinanderliegenden Druckwalzen (4, 5, 6) an jedem Ende auf einem Schlitten (16, 17, 18) drehbar gelagert ist, der sich zwischen zwei vertikalen, in einem Pfosten (14) des Kästchens (11) angeordneter Führungseinrichtung (12,13) in vertikaler Richtung bewegen kann, wobei die in demselben Pfosten des Kästchens angeordneten Schlitten (16, 17, 18) in vertikaler Richtung durch dazwischen angeordnete Beilagen (19, 23) voneinander getrennt werden, deren Höhe dem zwischen der Achsen der horizontalen Wellen vorhandenen Abstand entspricht, der von dem Druckformat abhängig ist, wobei sich die beiden unteren Schlitten (18), auf welchen die Welle (6a) der unteren Gegendruckwalze (6) drehbar gelagert ist, auf die oberen Stangenenden von vertikalen Hubzylindern (24) stützen, die von einem höhenverstellbaren Querbalken (25) getragen werden.
2. Offset-Rotationsdruckmaschine für variable Formate nach Anspruch 1, dadurch gekennzeichnet, dass der Querbalken (25), der die beiden vertikalen, auf die unteren Schlitten (18) wirkenden Hubzylinder (24) trägt, mittels vertikaler Stangen (26) höhenverstellbar ist, die durch eine im unteren Teil des Kästchens (11) angeordnete Vorrichtung nach oben und nach unten verstellbar sind.
3. Offset-Rotationsdruckmaschine für variable Formate nach Anspruch 2, dadurch gekennzeichnet, dass die vertikalen Stangen bzw. Stellschrauben (26) als Auszugszylinder der Walzen verwendet werden.
4. Offset-Rotationsdruckmaschine für variable Formate nach irgendeinem der vorigen Ansprüche, dadurch gekennzeichnet, dass jeder obere Schlitten (16), auf welchem die Welle (4a) der mit Platten versehenen Walze (4) drehbar gelagert ist, an einer oberen Beilage (21) anliegt, die selbst unter einem oberen, auf dem Gestell (1) der Maschine angeordneten Anschlag (22) liegt, wobei die drei Beilagen (21, 19, 23) Ausnehmungen (28, 29, 31) aufweisen, die an den unteren oder oberen horizontalen Flächen münden und Druckfedern (32, 33, 34) mit verschiedener Druckkraft enthalten, so dass die zwischen der unteren Beilage (23) und dem unteren Schlitten (18) angeordnete Feder (34) die kleinste Kraft, die zwischen der Zwischenbeilage (19) und dem Zwischenschlitten (17) angeordnete Feder (33) die grösste Kraft und die zwischen der oberen Beilage (21) und dem oberen Schlitten (16) angeordnete Feder (32) eine Kraft ausübt, deren Grösse zwischen den beiden vorher erwähnten Kräften liegt.
5. Offset-Rotationsdruckmaschine für variable Formate nach irgendeinem der vorigen Ansprüche, dadurch gekennzeichnet, dass die vertikalen Führungseinrichtungen (12, 13), die in jedem Pfosten (14) des Kästchens (11) angeordnet sind, in eine ständig geöffnete Öffnung im oberen Teil des Kästchens (11) münden, die es erlaubt, die Walzen nach oben herauszunehmen.
6. Offset-Rotationsdruckmaschine für variable Formate nach irgendeinem der vorigen Ansprüche, dadurch gekennzeichnet, dass das gesamte Kästchen (11) mittels horizontaler und vertikaler Schrauben (35) in horizontaler Richtung versetzt werden kann, damit es in Druckstellung an Anschlägen (37, 38) anliegt.
EP19830402160 1982-11-08 1983-11-07 Offset-Rotationsdruckmaschine für variable Formate Expired EP0113601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8218660 1982-11-08
FR8218660A FR2535651B1 (fr) 1982-11-08 1982-11-08 Imprimeuse rotative offset a format variable

Publications (2)

Publication Number Publication Date
EP0113601A1 EP0113601A1 (de) 1984-07-18
EP0113601B1 true EP0113601B1 (de) 1987-01-28

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ID=9278979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830402160 Expired EP0113601B1 (de) 1982-11-08 1983-11-07 Offset-Rotationsdruckmaschine für variable Formate

Country Status (4)

Country Link
EP (1) EP0113601B1 (de)
DE (1) DE3369483D1 (de)
FR (1) FR2535651B1 (de)
HK (1) HK15492A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955223A1 (de) * 1999-11-17 2001-05-31 Stork Gmbh Druckeinrichtung zum beidseitigen simultanen Bedrucken von bogenförmigen starren oder flexiblen Substraten oder Substratbahnen
DE19955214A1 (de) * 1999-11-17 2001-06-21 Stork Gmbh Verfahren zum Herstellen von Leiterbildern
WO2011015484A2 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Positioniervorrichtung und ein verfahren zur positionierung zumindest zweier zylinder
WO2011015478A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Lageraufnahme eines lagers eines zylinderzapfens und ein verfahren zum schliessen und verriegeln einer lageraufnahme
WO2011015479A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Druckmaschine sowie ein verfahren zur handhabung zumindest zweier zylinder eines druckwerks einer druckmaschine
WO2011015482A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Diagonalregistereinstellvorrichtung
WO2011015483A2 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Koppelvorrichtung eines zylinders einer druckmaschine und ein verfahren zum ankoppeln eines zylinders einer druckmaschine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291611B1 (de) * 1987-05-21 1990-11-07 Usinage Montage Et Assistance Technique U.M.A.T. Offsetrotationsmaschine zum Bedrucken einer kontinuierlich laufenden Bahn
FR2595623B1 (fr) * 1986-03-17 1991-09-06 Umat Imprimeuse rotative offset destinee a effectuer une impression sur une nappe defilant en continu
GB8611722D0 (en) * 1986-05-14 1986-06-25 Drg Uk Ltd Processing paper & other webs
AU631767B2 (en) * 1986-05-14 1992-12-03 Strachan Henshaw Machinery Limited Processing paper and other webs
USRE34483E (en) * 1986-05-14 1993-12-21 Strachan Henshaw Machinery Limited Processing paper and other webs
DE19534651A1 (de) * 1995-09-19 1997-03-20 Roland Man Druckmasch Druckwerk für indirekten Druck
EP1075945B1 (de) * 1999-08-10 2007-06-06 MAN Roland Druckmaschinen AG Druckwerk
DE10103631A1 (de) 2001-01-27 2002-08-01 Roland Man Druckmasch Rollenrotationsdruckmaschine
DE10103632B4 (de) * 2001-01-27 2013-08-22 Manroland Web Systems Gmbh Rollenrotationsdruckmaschine
CH694985A5 (fr) 2002-01-24 2005-10-31 Bobst Sa Dispositif pour le montage d'une cassette, comportant des outils cylindriques, dans une machine de façonnage rotatif d'une matière en bande ou en feuille.

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
BE510127A (de) *
FR497812A (fr) * 1919-04-03 1919-12-18 Charles Rene Pasquier Machine rotative à imprimer à encrage cylindrique et à format variable
US3323452A (en) * 1965-01-15 1967-06-06 Miehle Goss Dexter Inc Variable cut-off web offset press
FR1455161A (fr) * 1965-06-18 1966-10-14 Etudes De Machines Speciales Perfectionnements aux machines à imprimer rotatives en offset-humide
GB1104406A (en) * 1965-07-30 1968-02-28 Simon Ltd Henry Improvements in or relating to in-iine machine unit installations
DE2139834C2 (de) * 1971-08-09 1975-12-18 Windmoeller & Hoelscher, 4540 Lengerich Von Tiefdruck auf Flexodruck und umgekehrt umrüstbares Druckwerk für Druckmaschinen
FR2350198A1 (fr) * 1976-05-07 1977-12-02 Chambon Machines Imprimeuse rotative a plusieurs couleurs
FR2420426A1 (fr) * 1978-03-22 1979-10-19 Chambon Machines Imprimeuse rotative a plusieurs couleurs et a format variable

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955223A1 (de) * 1999-11-17 2001-05-31 Stork Gmbh Druckeinrichtung zum beidseitigen simultanen Bedrucken von bogenförmigen starren oder flexiblen Substraten oder Substratbahnen
DE19955214A1 (de) * 1999-11-17 2001-06-21 Stork Gmbh Verfahren zum Herstellen von Leiterbildern
DE19955223C2 (de) * 1999-11-17 2002-09-12 Stork Gmbh Druckeinrichtung zum beidseitigen simultanen Bedrucken von bogenförmigen starren oder flexiblen Substraten oder Substratbahnen
DE19955214B4 (de) * 1999-11-17 2006-05-11 Stork Gmbh Verfahren zum Herstellen von Leiterstrukturen
WO2011015484A2 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Positioniervorrichtung und ein verfahren zur positionierung zumindest zweier zylinder
WO2011015478A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Lageraufnahme eines lagers eines zylinderzapfens und ein verfahren zum schliessen und verriegeln einer lageraufnahme
WO2011015479A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Druckmaschine sowie ein verfahren zur handhabung zumindest zweier zylinder eines druckwerks einer druckmaschine
WO2011015482A1 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Diagonalregistereinstellvorrichtung
WO2011015483A2 (de) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Koppelvorrichtung eines zylinders einer druckmaschine und ein verfahren zum ankoppeln eines zylinders einer druckmaschine
DE102009028214A1 (de) 2009-08-04 2011-02-17 Kba-Metronic Aktiengesellschaft Positioniervorrichtung zweier Zylinder und ein Verfahren zur Positionierung von Zylindern
DE102009028214B4 (de) * 2009-08-04 2016-06-02 Kba-Meprint Ag Positioniervorrichtung zweier Zylinder und ein Verfahren zur Positionierung von Zylindern

Also Published As

Publication number Publication date
EP0113601A1 (de) 1984-07-18
DE3369483D1 (en) 1987-03-05
FR2535651A1 (fr) 1984-05-11
FR2535651B1 (fr) 1986-07-25
HK15492A (en) 1992-03-06

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