EP0396904B1 - Dispositif de soulèvement et d'abaissement d'un cylindre d'impression agissant sur un cylindre de cliché - Google Patents

Dispositif de soulèvement et d'abaissement d'un cylindre d'impression agissant sur un cylindre de cliché Download PDF

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Publication number
EP0396904B1
EP0396904B1 EP90106383A EP90106383A EP0396904B1 EP 0396904 B1 EP0396904 B1 EP 0396904B1 EP 90106383 A EP90106383 A EP 90106383A EP 90106383 A EP90106383 A EP 90106383A EP 0396904 B1 EP0396904 B1 EP 0396904B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
spindle nut
screw spindle
pinion
bearing
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
EP90106383A
Other languages
German (de)
English (en)
Other versions
EP0396904A2 (fr
EP0396904A3 (fr
Inventor
Herbert Lübke
Wolfgang Knapheide
Volker Schröder
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 EP0396904A2 publication Critical patent/EP0396904A2/fr
Publication of EP0396904A3 publication Critical patent/EP0396904A3/fr
Application granted granted Critical
Publication of EP0396904B1 publication Critical patent/EP0396904B1/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
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices

Definitions

  • the invention relates to a device for turning on and off a counter-pressure cylinder acting on a forme cylinder of a rotary printing press and for carrying out its long stroke movement for the purpose of changing the forme cylinder, with spindles for raising and lowering the bearings of the counter-pressure cylinder and with one pressure medium piston each acting on the spindles -Cylinder unit for pressing the impression cylinder against the forme cylinder.
  • the object of the invention is therefore to provide a device of the type specified at the outset, which has a simpler structure and can therefore be manufactured more cost-effectively.
  • each spindle nut tubular and a non-rotatable pinion driven by a motor is arranged on a tube section of the spindle nut with the same outside diameter, but is axially displaceably guided over a limited distance and that the pinion hub is mounted fixed to the frame.
  • the device according to the invention consists only of a pinion driving the spindle nut, which in the manner on the spindle nut is rotatably but axially displaceable over a limited distance between stops, that the impression cylinder is supported on the form cylinder during printing operation, without additionally Support of the spindle nut to be loaded on the housing, so that the desired pressure of the impression cylinder on the forme cylinder can be set essentially solely by the pressure medium-piston-cylinder unit, which will usually be a pneumatic cylinder.
  • each pressure medium-piston-cylinder unit is expediently articulated to the end region of a lever which is mounted in the frame and which is supported on the spindle nut between the articulation points.
  • This configuration enables the counter-pressure cylinder to be loaded by the two piston-cylinder units in a structurally simple manner.
  • the lever can be supported by a thrust bearing on a collar of the tubular spindle nut.
  • the lever is preferably clamped between two thrust bearings of the spindle nut, of which the upper one is loaded by a compression spring.
  • each of the bearings is provided with a device for compensating for the weight of the bearing, the parts connected to it and the impression cylinder.
  • This compensation device enables the pressure of the impression cylinder against the Forme cylinder that can only be adjusted with precision by the piston-cylinder units because the dead weight of the impression cylinder and the bearings is eliminated.
  • the compensation device can be formed from springs and expediently consists of a pneumatic piston-cylinder unit, which acts similarly to a tension spring that can be adjusted to a specific force.
  • Each of the bearings is expediently attached to the piston rod of the pneumatic piston-cylinder unit by a rope running over a deflection roller.
  • a switch which is fixed to the frame which in the pressure position monitors a gap between the hub of the pinion or a part connected to it and a counter-stop of the spindle nut.
  • the counter stop can be formed by a collar of the tubular spindle nut.
  • a housing 3 or 4 is attached to each of the two side walls 1, 2 of an intaglio printing machine. Since the two sides of the rotogravure printing press are of identical design, only the left side of the rotogravure printing press is explained in more detail below.
  • the housing 3, 4 has an upper through-bore 6 provided with a collar 5 and the lower part of the housing has a through-bore 7.
  • a roller bearing 8 is supported on the inner step formed by the collar 5, while a further roller bearing 9 is held by a cover 10 which closes the bore 7 at the bottom.
  • Both bearings 8 and 9 support the hub of a pinion 11 that is rotatably connected via a feather key 12 to a tube 13 which has an internal thread and forms a spindle nut.
  • the keys 12 receiving grooves are longer than the key, so that the pinion 11 is axially displaceable relative to the tube 13 over a small distance. The displacement of the pinion 11 relative to the tube 13 is limited by stops.
  • this tube 13 is in engagement with the external thread of a threaded spindle 14.
  • the latter is firmly connected to the carrier plate 15 for the pressure roller or for the impression roller 16.
  • the tube 13 is gripped at a distance by a lever 17. Which is pivotally mounted at point 18, the pivoting movement being achieved via a pneumatic piston-cylinder unit 19.
  • This pneumatic piston-cylinder unit 19 is connected to the side wall 1 in a manner not shown.
  • the lever 17 has two opposing dome-shaped recesses 20 and 21, in each of which a bearing cover of a thrust bearing 22 or 23 is mounted.
  • the second bearing cap belonging to the upper bearing 22 is pressed via a spring 24 and a nut 25 screwed onto the tube 13 in such a way that the Lever 17 associated bearing cover of the thrust bearing 23 always creates play on the collar 25 of the tube 13, which forms the second bearing cover of the thrust bearing 23.
  • a motor 27 is connected to the housing 3, on the drive shaft 28 a drive pinion 29 is attached, which is in drive connection with the pinion 11 via a toothed belt 30.
  • the weight of the carrier plate 15 is borne by a piston-cylinder unit 31, the piston rod 32 of which is connected to a cable 33 which is deflected to the carrier plate 15 via a roller 34.
  • the pressure with which the piston-cylinder unit 31 is acted on is adjustable so that a very precisely defined proportion of the weight of the carrier plate 15 and of the impression roller 16 can be accommodated.
  • FIGS. 1 and 2 show the printing position in which the collar 26 is at a distance from the bearing 8. If a new forme cylinder 35 is to be used, the motor 27 is first switched on, so that the tube 13 is rotated via the pinion 29, the toothed belt 30, the pinion 11 and the feather key 12. The direction of rotation is selected such that the threaded spindle 14 moves upward in the direction of arrow A, the collar 26 first resting against the bearing 8 and lifting the impression roller 16 from the forme cylinder 35 via the carrier plate 15. After a certain stroke, which is determined by the microswitch 37, the motor 27 is switched off (FIG. 1).
  • the motor 27 is driven in opposite directions in such a way that the threaded spindle 14 counteracts the elements already described above Direction of arrow of arrow A after is moved down until the impression roller 16 lies on the newly inserted forme cylinder. With further rotation of the motor 27, the threaded spindle 14 cannot move downward. This means that instead the tube 13 moves upwards and the collar 26 lifts up from the bearing. The lever 18 is pivoted clockwise around its bearing point until it actuates the microswitch 36 (see FIG. 2), as a result of which the motor 27 is then stopped.
  • the pneumatic piston-cylinder unit 19 Since the pneumatic piston-cylinder unit 19 is constantly under a precisely defined set pressure, this precisely set pressure is transferred to the impression cylinder, regardless of the diameter of the impression cylinder and the diameter of the forme cylinder. Should the gap between the collar 26 and the bearing 8 decrease due to an error during the printing process, the microswitch 36 is actuated via the lever 17, whereby, for example, an optical or acoustic warning device is switched on. The operator must then switch on the motor 27 via a device (not shown) until a gap between the collar 26 and the bearing 8 is again established.
  • the pressure-on and pressure-off movements of the counter-pressure cylinder 16 take place by means of an NC control via the motors 27.
  • the threaded spindle 14 is protected by bellows 38 and 39 against external influences and in particular against dirt.

Landscapes

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

Claims (9)

  1. Dispositif pour la mise en marche et l'arrêt d'impression d'un cylindre à contre-pression agissant sur un cylindre porte-clichés d'une machine d'impression rotative ainsi que pour effectuer le déplacement de course au loin de celui-ci dans le but du remplacement du cylindre porte-clichés, avec des tiges filetées pour soulever et abaisser les paliers du cylindre à contre-pression et
       avec une unité à piston et à cylindre à fluide sous pression agissant sur les tiges filetées pour l'application du cylindre à contre-pression au cylindre porte-clichés,
       caractérisé
       en ce que chaque écrou de tige filetée (13) est réalisé sous forme de tube, et qu'il est disposé sur un tronçon de tube de l'écrou de tige filetée (13) d'un même diamètre extérieur un pignon (11) pouvant être entraîné par un moteur (27), immobile en rotation mais déplaçable sur un trajet limité, et en ce que le moyeu du pignon est logé de façon solidaire du bâti.
  2. Dispositif selon la revendication 1, caractérisé en ce que la tige de piston de chaque unité à piston et à cylindre à fluide sous pression (19) est articulée aux zones d'extrémité d'un levier (17), respectivement, logé dans le bâti qui prend appui entre les points d'articulation sur l'écrou de tige filetée (13).
  3. Dispositif selon la revendication 2, caractérisé en ce que le levier (17) prend appui par un palier de butée (23) sur un épaulement (26) de l'écrou de tige filetée (13) de forme tubulaire.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le levier (17) est serré entre deux paliers de butée (22, 23) de l'écrou de tige filetée (13), dont le palier supérieur (22) est soumis à l'action d'un ressort de pression (24).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que chacun des paliers (15) est pourvu d'un dispositif pour compenser le poids du palier, des éléments reliés à celui-ci et du cylindre à contre-pression (16).
  6. Dispositif selon la revendication 5, caractérisé en ce que le dispositif de compensation est constitué d'une unité pneumatique à piston et à cylindre (31).
  7. Dispositif selon la revendication 6, caractérisé en ce que chaque palier est accroché par un câble (33) passant sur un galet de renvoi (34) à la tige de piston (32) de l'unité à piston et à cylindre (31).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'un commutateur (36) solidaire du bâti est prévu qui surveille en position d'impression une fente entre le moyeu du pignon (11) ou une pièce reliée à celui-ci et une contre-butée de l'écrou de tige filetée (13).
  9. Dispositif selon la revendication 8, caractérisé en ce que la contrebutée est constituée par un épaulement (26) de l'écrou de tige filetée (13) de forme tubulaire.
EP90106383A 1989-05-11 1990-04-03 Dispositif de soulèvement et d'abaissement d'un cylindre d'impression agissant sur un cylindre de cliché Expired - Lifetime EP0396904B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915481 1989-05-11
DE3915481A DE3915481A1 (de) 1989-05-11 1989-05-11 Vorrichtung zum anstellen und abheben eines auf einen formzylinder wirkenden gegendruckzylinders

Publications (3)

Publication Number Publication Date
EP0396904A2 EP0396904A2 (fr) 1990-11-14
EP0396904A3 EP0396904A3 (fr) 1991-06-12
EP0396904B1 true EP0396904B1 (fr) 1994-02-09

Family

ID=6380488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106383A Expired - Lifetime EP0396904B1 (fr) 1989-05-11 1990-04-03 Dispositif de soulèvement et d'abaissement d'un cylindre d'impression agissant sur un cylindre de cliché

Country Status (4)

Country Link
US (1) US5109768A (fr)
EP (1) EP0396904B1 (fr)
JP (1) JPH035145A (fr)
DE (2) DE3915481A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032318A1 (de) * 1990-05-15 1991-11-21 Windmoeller & Hoelscher Vorrichtung zum auftragen fluessiger medien auf eine bahn
FR2672542B1 (fr) * 1991-02-11 1994-02-11 Komori Chambon Sa Dispositif de detection, dans une machine, de la position de contact de deux cylindres d'axes paralleles.
JP2585995Y2 (ja) * 1992-10-01 1998-11-25 株式会社小森コーポレーション 胴着脱装置
IT1299644B1 (it) * 1998-02-05 2000-03-24 Uteco Spa Roto Flexo & Convert Macchina per la stampa rotocalco e per la verniciatura fino ad otto colori
DE19805898C2 (de) * 1998-02-13 2003-09-18 Roland Man Druckmasch Druckwerk für eine Rollenrotationsdruckmaschine
DE19943027C5 (de) * 1998-10-28 2016-11-17 Heidelberger Druckmaschinen Ag Positioniervorrichtung in einer Druckmaschine
SE514057C2 (sv) * 1999-03-30 2000-12-18 Tetra Laval Holdings & Finance Sätt och anordning för låsning av valsar i ett tryckverk
DE19955223C2 (de) * 1999-11-17 2002-09-12 Stork Gmbh Druckeinrichtung zum beidseitigen simultanen Bedrucken von bogenförmigen starren oder flexiblen Substraten oder Substratbahnen
DE19963944C1 (de) * 1999-12-31 2001-06-13 Koenig & Bauer Ag Verfahren zum Einstellen einer Walze einer Druckmaschine
DE10255807B4 (de) * 2002-11-29 2012-02-02 Manroland Ag Positioniereinrichtung für Funktionseinrichtungen von Druckmaschinen
NL1022048C2 (nl) * 2002-12-02 2004-06-03 Mps Holding B V Drukmodule alsmede een drukmachine voorzien van een dergelijke drukmodule.
DE102004037889B4 (de) 2004-04-05 2006-05-11 Koenig & Bauer Ag Vorrichtung zur Lagerung eines Zylinders und Druckeinheit mit wenigstens drei als Druckwerk zusammen wirkenden Zylindern
DE102004037888B4 (de) 2004-04-05 2008-09-04 Koenig & Bauer Aktiengesellschaft Druckeinheiten einer Rollenrotationsdruckmaschine
EP1900521A1 (fr) 2004-04-05 2008-03-19 Koenig & Bauer Aktiengesellschaft Appareil de traitement des images et procédé de traitement des informations
ITVR20100131A1 (it) * 2010-06-30 2011-12-31 Uteco Converting Spa Macchina da stampa flessografica

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2207785A (en) * 1938-03-10 1940-07-16 Goss Printing Press Co Ltd Rotary photogravure printing press
US2607292A (en) * 1948-05-29 1952-08-19 Hoe & Co R Rotogravure impression mechanism
US3272122A (en) * 1961-03-21 1966-09-13 Publication Corp Method of adjusting a foreshortened impression roller
US3131631A (en) * 1962-01-08 1964-05-05 Inta Roto Machine Company Inc Impression roll support and control means
DE1235333B (de) * 1964-01-29 1967-03-02 Windmoeller & Hoelscher Anilin-Druckmaschine
FR2248939B1 (fr) * 1973-10-24 1977-09-09 Etudes De Machines Speciales
DE2609513C3 (de) * 1976-03-08 1979-03-29 Windmoeller & Hoelscher, 4540 Lengerich Vorrichtung zum An- und Abstellen eines auf den Formzylinder einer Tiefdruckmaschine wirkenden Presseurs Windmoller & Hölscher, 4540 Len¬
DE2638750C3 (de) * 1976-08-27 1981-01-08 Windmoeller & Hoelscher, 4540 Lengerich Vorrichtung zum Druckan- und Druckabstellen und zum Ausführen einer für den Zylinderwechsel notwendigen Weithubbewegung eines auf den Formzylinder einer Tiefdruckrotationsmaschine wirkenden Presseurs
US4132166A (en) * 1977-10-07 1979-01-02 Aldo Bugnone Mounting for rotary cylinders, particularly in a printing press
DE2822531A1 (de) * 1978-05-23 1979-11-29 Frankenthal Ag Albert Tiefdruckmaschine
DE3337309C2 (de) * 1983-10-13 1986-10-02 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Druckan- und abstellen eines auf einen Formzylinder wirkenden Gegendruckzylinders einer Rollen-Rotationsdruckmaschine
US4527474A (en) * 1984-10-11 1985-07-09 Windmoller & Holscher Apparatus for impression throw-on and throw-off and, for changing cylinders, and for causing a long stroke to be executed by an impression cylinder of a rotary gravure press
FR2585287B1 (fr) * 1985-07-26 1988-07-08 Martin Sa Machine pour le traitement de feuilles de carton defilant successivement notamment machine d'impression
DE3832435A1 (de) * 1987-09-24 1989-04-13 Ryobi Ltd Druckmaschine

Also Published As

Publication number Publication date
US5109768A (en) 1992-05-05
DE3915481A1 (de) 1990-12-13
JPH035145A (ja) 1991-01-10
EP0396904A2 (fr) 1990-11-14
EP0396904A3 (fr) 1991-06-12
DE59004540D1 (de) 1994-03-24

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