EP0451100B1 - Dispositif du cylindre d'impression d'une machine d'impression en creux pour l'impression sur bande continue - Google Patents

Dispositif du cylindre d'impression d'une machine d'impression en creux pour l'impression sur bande continue Download PDF

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Publication number
EP0451100B1
EP0451100B1 EP91810205A EP91810205A EP0451100B1 EP 0451100 B1 EP0451100 B1 EP 0451100B1 EP 91810205 A EP91810205 A EP 91810205A EP 91810205 A EP91810205 A EP 91810205A EP 0451100 B1 EP0451100 B1 EP 0451100B1
Authority
EP
European Patent Office
Prior art keywords
impression cylinder
arrangement
rotation
cooling
drums
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
EP91810205A
Other languages
German (de)
English (en)
Other versions
EP0451100A1 (fr
Inventor
Norbert Adolf Feser
Wolfgang Leo Scheller
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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 De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0451100A1 publication Critical patent/EP0451100A1/fr
Application granted granted Critical
Publication of EP0451100B1 publication Critical patent/EP0451100B1/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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/22—Means for cooling or heating forme or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes

Definitions

  • the invention relates to an impression cylinder arrangement of an intaglio printing machine for web printing.
  • Printing cylinders of web printing presses must have a smooth, continuous circumferential surface with a certain quality and, for reasons of stability, have compact cylinder bodies which do not allow the installation of internal cooling.
  • printing cylinders of this type are constructed from a multiplicity of adjacent, circular disk-shaped layers of cotton or paper material which are pressed together axially on both sides. A rubber covering is generally stretched over the circumference of the cylinder body thus formed.
  • Printing cylinders with a surface layer made of plastic are also known (DE-PS 2,050,663, corresponding to U.S. Patent 3,691,949).
  • devices for cooling the printing cylinder are known from documents US-A-2078378 and DE-C-279821, which can be set on the surface of this printing cylinder.
  • the present invention has for its object to provide a printing cylinder arrangement which allows effective cooling of the printing cylinder surface during printing.
  • the printing cylinder arrangement according to the invention is characterized in that it has a device for cooling the printing cylinder with at least one endless metal strip running over rollers, which bears against the surface of the printing cylinder along a circumferential section thereof and at a speed corresponding to the circumferential speed of the printing cylinder Speed is movable and is subjected to cooling.
  • a plurality of metal strips running next to one another are preferably provided, which at least approximately cover the entire length of the printing cylinder.
  • the heat generated on the impression cylinder surface can be continuously dissipated by the metal strips running off the impression cylinder, so that the impression cylinder can be kept at a constant temperature, which should preferably be about 10 ° C. below the temperature of the plate cylinder kept constant.
  • rollers are expediently freely rotatable, and the metal strips are pressed against the pressure cylinder to such an extent that they are carried along when it rotates.
  • One of the rollers is preferably set up as a cooling roller for the passage of a cooling liquid and is pressed against the printing cylinder during printing operation, so that intimate contact of the metal strips with the printing cylinder and this cooling roller is ensured.
  • the rollers are mounted in an adjustable frame and can be removed from the printing cylinder so far when the printing machine is switched off that it is not touched by the metal strips.
  • the arrangement is expediently such that when the cooling device is turned on, the cooling roller first touches the printing cylinder and then the metal strips come to rest on the circumference of the printing cylinder, but the other roller, which is provided with guide ribs for the metal strips, remains at a small distance from the printing cylinder .
  • FIGS. 1 and 2 show the plate cylinder 1 rotatable about the axis 1a and the printing cylinder 2 rotatable about the axis 2a of an intaglio printing machine, not otherwise shown, the paper web P which is moved in the direction of the arrow and which is printed upon passing the printing gap between the two cylinders pressed against one another and then runs over a tension roller 3, as well as the cooling device cooperating with the pressure cylinder 2.
  • This cooling device has two rollers 4 and 5, which are mounted in a common frame and can be freely rotated about their axes 4a and 5a and over which endless metal strips 6 run side by side.
  • the frame is positioned, as will be described in more detail later, in such a way that the metal strips 6 are pressed against the circumference of the printing cylinder 2 with a predeterminable force and wrap it around a circumferential section, being carried along by the latter when the printing cylinder rotates.
  • the metal strips 6 can dissipate the heat generated on the surface of the printing cylinder 2, which is generated during printing operation by the strong pressure of the printing cylinder 2 against the plate cylinder 1 and the resulting flexing work.
  • one roller 4 is designed as a hollow cooling roller through which a cooling liquid flows, as indicated by the arrows K in FIG. In this way, the surface temperature of the printing cylinder 2 can be kept at a constant value during the printing operation.
  • one of the rollers in the example considered the uncooled roller 5, is provided with annular ribs 5b, between which the metal strips 6 run. Because of these ribs 5b, the roller 5 should not touch the pressure cylinder 2 in its working position. In contrast, it is advantageous that in the working position of the cooling device, the cooling roller 4 is pressed directly, with the metal strips 6 being clamped, against the pressure cylinder 2, in order in this way to ensure particularly good contact of the metal strips 6 with the pressure cylinder 2 on the one hand and the cooling roller 4 on the other to guarantee.
  • FIGS. 3 to 7 which is adjustable between a rest position (FIG. 3) moved away from the impression cylinder 2, in which the metal strips 6 do not touch the impression cylinder 2, and a working position (FIG. 5) which the cooling roller 4 abuts with the clamping of the metal strips 6 on the impression cylinder 2, while the other roller 5 has a small distance X from the impression cylinder 2, however presses the metal strips 6 along a certain circumferential section of the printing cylinder 2 against the latter.
  • the rollers 4 and 5 are installed in a frame 7.
  • the roller 4 is mounted with its axis of rotation 4a in a bearing 20 and the other roller 5 with its axis of rotation 5a in a bearing 21.
  • the bearing 21 is seated on both sides in a sliding piece 17, which is displaceable in the frame 7 in the direction of the connecting line between the two axes of rotation 4a and 5a.
  • Compression springs 18 are arranged on each side between a support 7a of the frame 7 and the sliding piece 17, which spread the two bearings and thus the two rollers 4 and 5 apart and thus keep the metal strips 6 running over the rollers 4 and 5 constantly under tension.
  • the compression springs 18 are arranged on both sides next to screws 19, which each penetrate a hole in part of the frame 7, rest with their heads on this part and engage a thread in the respective sliding piece 17. These screws 19 are used to move the sliding pieces 17, in which the roller 5 is mounted, against the force of the compression springs 18 such that the distance between the rollers 4, 5 can be reduced. This reduction in distance enables the metal strips 6 to be easily replaced. After the metal strips 6 have been replaced, the screws 19 are loosened to such an extent that the metal strips 6 are only under the force of the compression springs 18.
  • the frame 7 is mounted outside of its center, in the half having the cooling roller 4, on each side pivotable about a free axis of rotation 9 at one end of a lever arm 10, the articulation point being located on an extension 8 of the frame 7 (FIGS. 3 and 7 ).
  • the other end of each lever arm 10 is pivotable about a fixed axis of rotation 11 on the frame 22 of the Printing machine mounted. Both lever arms 10 are connected to each other by a crossbeam 10b.
  • each lever arm 10 is pivotable about the fixed axis of rotation 11 with the aid of a pressure cylinder 12 which is rotatably mounted on the frame 22 by means of the pin 12a.
  • the piston 13 of each pressure cylinder 12 is articulated by means of a pin 14 on an actuating arm 15, which in turn is rigidly connected to the lever arm 10.
  • the shaft 11a is rigidly connected to the actuating arm 15 on the one hand and to the lever arm 10 on the other hand at each of its ends.
  • a tension spring 16 is tensioned on each side between the shoulder 8 of the frame 7 and a projection 10a of the lever arm 10, which pulls the frame 7 upwards in the direction of the lever arms 10.
  • the frame 7 consists of two side parts which are held together only by the rollers 4 and 5 mounted therein.
  • the crossbeam 10b provides additional stability and increases the torsional rigidity of the lever arms 10 and the shaft 11a.
  • the connecting line between the axis of rotation 4a of the roller 4 and the free axis of rotation 9 includes an obtuse angle with the connecting line between this free axis of rotation 9 and the fixed axis of rotation 11. Due to this configuration, when the cooling device is turned into its working position, the following occurs: When the pressure cylinders 12 are actuated and thereby their pistons 13 are extended, the lever arms 10 rotate clockwise around the starting position from the cooling device shown in FIG. 3 Axis of rotation 11 until, in an intermediate position, the roller 4 comes to rest on the printing cylinder 2. This intermediate position is shown in Figure 4.
  • the lever arms 10 are pivoted counterclockwise about the fixed axis of rotation 11, whereby first, under the action of the tension springs 16, the frame 7 is pivoted upwards with the lifting of the roller 5 from the pressure cylinder 2 and then the roller 4 is also lifted off the pressure cylinder 2 becomes.
  • the invention is not limited to the exemplary embodiment described, but rather permits multiple variants with regard to the design of the cooling device, in particular the adjusting device for starting and moving the metal strips, and the number thereof.
  • the arrangement can also be such that neither of the two rollers lies against the printing cylinder in the working position, but only the metal strips in the area between the two rollers partially wrap around the printing cylinder.
  • the cooling of the metal strips can also be carried out in a different way than described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Screen Printers (AREA)

Claims (10)

  1. Arrangement de cylindre d'impression d'une machine d'impression taille-douce pour impression à la bobine, caractérisé en ce qu'il comprend un dispositif de refroidissement du cylindre d'impression (2) comprenant au moins un ruban métallique sans fin (6) passant sur des tambours (4, 5), ruban en contact avec la surface du cylindre d'impression (2) le long d'une section de sa circonférence, ce ruban métallique étant déplaçable à une vitesse correspondant à la vitesse circonférentielle du cylindre d'impression (2) et soumis à un refroidissement.
  2. Arrangement selon la revendication 1, caractérisé en ce qu'il comprend plusieurs rubans métalliques (6) disposés côte à côte et recouvrant au moins approximativement toute la longueur du cylindre d'impression (2).
  3. Arrangement selon la revendication 1 ou 2, caractérisé en ce que les tambours (4, 5) sont en roue libre et que le ruban métallique, respectivement les rubans métalliques (6) sont pressés suffisamment fort contre le cylindre d'impression (2) pour être entraînés par celui-ci en rotation.
  4. Arrangement selon l'une des revendications 1 à 3, caractérisé en ce qu'au moins un tambour est agencé en tambour de refroidissement (4) pour la circulation d'un liquide de refroidissement.
  5. Arrangement selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins l'un des tambours, de préférence le tambour de refroidissement, peut être pressé contre la circonférence du cylindre d'impression (2).
  6. Arrangement selon l'une des revendications 2 à 5, caractérisé en ce qu'au moins l'un des tambours (5) est pourvu de nervures annulaires (5b) guidant chacun des rubans métalliques (6) disposés l'un à côté de l'autre.
  7. Arrangement selon l'une des revendications 1 à 6, caractérisé en ce qu'il comprend un dispositif tendant automatiquement les rubans métalliques (6), de préférence un ressort (18) tendant à écarter l'un de l'autre les paliers (20, 21) des tambours (4, 5).
  8. Arrangement selon l'une des revendications 1 à 7, caractérisé en ce que les tambours (4, 5) sont montés rotativement dans un cadre déplaçable et que lorsque la machine d'impression est déclenchée, ils sont éloignés du cylindre d'impression (2) d'une distance telle que le ruban métallique, respectivement les rubans métalliques (6) ne sont plus en contact avec le cylindre d'impression.
  9. Arrangement selon l'une des revendications 1 à 8, caractérisé en ce que le cadre (7) est monté, hors de son centre, dans la moitié comprenant le tambour de refroidissement (4), à une extrémité d'un bras de levier (10) de manière à pouvoir basculer autour d'un axe de rotation libre (9), l'autre extrémité du bras de levier étant montée sur le bâti (22) de la machine d'impression de manière pivotante autour d'un axe de rotation fixe (11), la ligne droite reliant l'axe (4a) du tambour de refroidissement (4) et l'axe de rotation libre (9) formant un angle optu avec la ligne droite reliant cet axe de rotation libre (9) et l'axe de rotation fixe (11), un ressort travaillant en traction (16), qui tire le cadre en direction du bras de levier, étant tendu entre le cadre (7) et le bras de levier (10), le bras de levier (10) étant monté rotativement autour de son axe de rotation fixe (11) sous l'effet d'une force d'entraînement, de préférence sous l'effet d'un cylindre d'impression (12), de telle manière que le cadre (7) est premièrement déplacé d'une position écartée du cylindre d'impression (2) à une position dans laquelle le tambour de refroidissement (4) est pressé contre le cylindre d'impression (2) et qu'il est ensuite basculé autour de l'axe de rotation libre (9) contre la force du ressort de traction (16) de manière à amener le ruban métallique, respectivement les rubans métalliques (6), en pression contre le cylindre d'impression (2), l'autre tambour (5) restant toutefois à distance (x) du cylindre d'impression (2).
  10. Arrangement selon l'une des revendications 1 à 9, caractérisé en ce que l'angle d'enveloppement (α) du ruban métallique, respectivement des rubans métalliques (6), est ajustable des deux côtés au moyen de butées (23).
EP91810205A 1990-04-06 1991-03-22 Dispositif du cylindre d'impression d'une machine d'impression en creux pour l'impression sur bande continue Expired - Lifetime EP0451100B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1181/90 1990-04-06
CH118190 1990-04-06

Publications (2)

Publication Number Publication Date
EP0451100A1 EP0451100A1 (fr) 1991-10-09
EP0451100B1 true EP0451100B1 (fr) 1994-08-17

Family

ID=4204394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810205A Expired - Lifetime EP0451100B1 (fr) 1990-04-06 1991-03-22 Dispositif du cylindre d'impression d'une machine d'impression en creux pour l'impression sur bande continue

Country Status (11)

Country Link
US (1) US5092241A (fr)
EP (1) EP0451100B1 (fr)
JP (1) JP2869204B2 (fr)
KR (1) KR0181516B1 (fr)
CN (1) CN1027528C (fr)
AT (1) ATE110025T1 (fr)
AU (1) AU635474B2 (fr)
CA (1) CA2039445C (fr)
DE (1) DE59102536D1 (fr)
RU (1) RU1838152C (fr)
UA (1) UA26307A (fr)

Families Citing this family (13)

* 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
DE4231263A1 (de) * 1992-09-18 1994-03-24 Heidelberger Druckmasch Ag Druckwerksvorrichtung einer Rollendruckmaschine mit Abschmierverhinderungseinrichtung
FR2740726B1 (fr) * 1995-11-08 1998-01-23 Heidelberg Harris Sa Dispositif de refroidissement de la surface du blanchet d'un groupe d'impression d'une machine rotative a imprimer
US6050326A (en) * 1998-05-12 2000-04-18 International Business Machines Corporation Method and apparatus for cooling an electronic device
DE10311219A1 (de) * 2003-03-14 2004-09-30 Werner Kammann Maschinenfabrik Gmbh Verfahren und Vorrichtung zum Bedrucken einer Bahn
US6955215B2 (en) * 2004-03-09 2005-10-18 King Fahd University Of Petroleum And Minerals Hybrid cooling system and method for cooling electronic devices
US7165413B2 (en) * 2004-07-09 2007-01-23 Symons Robert S Integrated liquid cooling device with immersed electronic components
US7162887B2 (en) * 2004-07-09 2007-01-16 Symons Robert S Integrated liquid cooling device for electronic components
FR2895305B1 (fr) * 2005-12-27 2009-04-17 Goss Int Montataire Sa Presse d'impression a engagement de bande ameliore et procede d'engagement de bande correspondant.
JP5089357B2 (ja) * 2006-12-11 2012-12-05 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機で印刷または塗工された枚葉紙を乾かす方法
CN104669773B (zh) * 2015-03-03 2017-06-06 深圳市长江机械设备有限公司 轮转式印刷机及其压印辊筒装置
CN104924748A (zh) * 2015-06-01 2015-09-23 铜陵方正塑业科技有限公司 印刷装置
CN105500898A (zh) * 2015-12-18 2016-04-20 中山松德新材料装备有限公司 一种应用于涂布机的压辊摆动机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE279821C (fr) *
US2078378A (en) * 1935-07-20 1937-04-27 News Syndicate Co Inc Apparatus for and method of cooling a printing couple
US3749015A (en) * 1965-11-09 1973-07-31 Heller W Apparatus and process for printing
FR2520295B1 (fr) * 1982-01-26 1986-05-09 Herve Fils Sa Perfectionnements aux rotatives d'impression d'un support mince defilant de facon continue
US4920881A (en) * 1988-05-02 1990-05-01 Webquip Corporation Method of cooling hot webs

Also Published As

Publication number Publication date
CN1055705A (zh) 1991-10-30
DE59102536D1 (de) 1994-09-22
US5092241A (en) 1992-03-03
AU635474B2 (en) 1993-03-18
KR0181516B1 (ko) 1999-05-15
EP0451100A1 (fr) 1991-10-09
AU7384791A (en) 1991-10-10
ATE110025T1 (de) 1994-09-15
CN1027528C (zh) 1995-02-01
JP2869204B2 (ja) 1999-03-10
KR910018179A (ko) 1991-11-30
RU1838152C (ru) 1993-08-30
CA2039445A1 (fr) 1991-10-07
CA2039445C (fr) 2001-06-12
UA26307A (uk) 1999-08-30
JPH0564874A (ja) 1993-03-19

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