EP0962316B1 - Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer - Google Patents

Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer Download PDF

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Publication number
EP0962316B1
EP0962316B1 EP19980110132 EP98110132A EP0962316B1 EP 0962316 B1 EP0962316 B1 EP 0962316B1 EP 19980110132 EP19980110132 EP 19980110132 EP 98110132 A EP98110132 A EP 98110132A EP 0962316 B1 EP0962316 B1 EP 0962316B1
Authority
EP
European Patent Office
Prior art keywords
shaft
cylinder
claws
expansion mechanism
axially
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
EP19980110132
Other languages
German (de)
English (en)
Other versions
EP0962316A1 (fr
Inventor
Lars Grüter
Wilfried Kolbe
Klaus Schirrich
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co 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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to DE59801953T priority Critical patent/DE59801953D1/de
Priority to ES98110132T priority patent/ES2164394T3/es
Priority to EP19980110132 priority patent/EP0962316B1/fr
Publication of EP0962316A1 publication Critical patent/EP0962316A1/fr
Application granted granted Critical
Publication of EP0962316B1 publication Critical patent/EP0962316B1/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
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes

Definitions

  • the invention relates to a device for axially fixing a cylinder a shaft of a printing press.
  • Printing presses typically have a number of interchangeable cylinders on. These cylinders can be used, for example, in the case of a flexographic printing press for example, the pressure cylinders or the application rollers.
  • the cylinder When changing cylinders, the cylinder is pulled axially from one end of the shaft (EP-A-0 769 373).
  • the cylinder With some types of known printing machines the cylinder is attached to the shaft so that the cylinder and the shaft rotate as one unit during printing.
  • One end of the cylinder is in this case connected to the shaft by an anti-rotation device, and on the other end is the cylinder by a fixing device detachably mounted on the shaft secured against axial displacement in such a way that the anti-rotation device remains engaged with the shaft at the opposite end of the cylinder.
  • the fixing device When changing cylinders, the fixing device must first be fixed so that the cylinder can be pulled off the shaft. The one from the wave removed cylinder is then in a rack trolley until the next use kept.
  • the cylinder is usually attached to the shelf trolley in such a way that the cylinder is axially free on the shelf trolley towering thorn is pushed on.
  • a disadvantage of this known system is that the fixing device completely removed from the shaft when changing cylinders and temporarily suitable must be kept until after the new cylinder has been pushed on is attached to the shaft again. This will automate the cylinder change difficult.
  • DE-B-1 164 967 describes a pressure roller with an exchangeable roller shell described, the ends of which are releasably connected to a support pin are.
  • the trunnion has a conical part on which an expansion sleeve sits.
  • the expansion sleeve is in with a threaded portion of the trunnion Engagement and can be spread by turning the trunnion so that it rests on the inner surface of the roller shell to the roller shell on Fix the trunnion.
  • Radially projecting claws of the expansion sleeve also engage in the spread state in corresponding recesses in the inner surface of the roll shell so that an anti-rotation device is formed.
  • the object of the invention is therefore to provide a device for axially fixing the To create cylinders that are faster and easier to change cylinders enables.
  • This solution has the advantage that the expansion mechanism when changing cylinders does not need to be removed from the shaft, but only from spread needs to be transferred to the unexpanded state, so that the cylinder pulls away from the shaft via the expansion mechanism leaves. After the new cylinder has been pushed on, the expansion mechanism spread again so that it attacks the end of the cylinder and this against axial Secures displacement on the shaft.
  • Another advantage of this solution is that there are none on the cylinders structural changes are required so that the cylinders are in the usual way Have it pushed onto the mandrel of a storage or transport frame.
  • the spreading mechanism preferably has a bushing, which is for example by means of Thread is axially adjustable on the stub shaft and on the cylinder facing side supports or supports spreadable claws, which then by axial adjustment of the socket against the end of the cylinder can be clamped.
  • the Axial movement of the bushing and the claws can also be used to to effect the spreading movement of the claws, for example by on the stub shaft a cone is placed on which the claws move axially slide on.
  • the claws are preferably elastic in the unspread position biased so that they automatically when loosening the socket in the unspread Overcome condition. This can be particularly advantageous through an inherently elastic Achieve claw design.
  • Figure 1 is an end of a cylinder 10, for example an applicator roller or of a printing cylinder of a flexographic printing machine shown with the help of a Spreading mechanism 12 axially fixed on a rotatable shaft 14 of the printing press is held.
  • the cylinder 10 is constructed with two shells, with an inner jacket 16 and an outer jacket 18, the end of which is somewhat protrudes beyond the end of the inner jacket, so that on the end of the cylinder a circumferential step 20 is formed.
  • the shaft 14 has an axially projecting stub shaft 22 at the end, at the free end an external thread section 24 with a reduced diameter forms.
  • the expansion mechanism 12 comprises a screwed onto the externally threaded section 24 Bushing 26, an axially fixed and rotatable on the bushing 26 Claw ring 28 and a cone 30 which is axially fixed by means of a snap ring 32 is held on the shaft end 22.
  • the cone 30 lies on the between the shaft stub 22 and the main part of the shaft 14 formed shoulder and tapers towards the free end of the wave end.
  • the claw ring 28 has a plurality of self-elastic distributed evenly over the circumference Claws 34, which project axially towards the cone 30 and in the state shown in Figure 1 by the cone elastically spread are so that they lie with their free ends in the stage 20 of the cylinder 10. A further spreading of the claws is so by the protruding edge of the Outer jacket prevented.

Landscapes

  • Rotary Presses (AREA)
  • Fixing For Electrophotography (AREA)

Claims (7)

  1. Dispositif pour la fixation axiale d'un cylindre (10) sur un arbre (14) d'une machine à imprimer, comprenant un mécanisme à expansion (12) qui est monté de manière réglable sur un bout d'arbre (22) à l'extrémité de l'arbre (14) et dont le diamètre extérieur à l'état expansé est supérieur au diamètre intérieur du cylindre (10), caractérisé en ce que le diamètre extérieur du mécanisme à expansion à l'état non expansé est au plus égal au diamètre intérieur du cylindre (10), et en ce que le mécanisme à expansion (12) à l'état expansé peut être serré axialement contre l'extrémité du cylindre (10).
  2. Dispositif selon la revendication 1, caractérisé en ce que le mécanisme à expansion comporte une douille (26) qui est vissée sur une portion filetée (24) du bout d'arbre (22).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que sur le bout d'arbre (22) est disposé un cône (30) sur lequel des griffes expansibles (34) du mécanisme à expansion (12) montent en glissant lorsque celui-ci est serré axialement contre l'extrémité de l'arbre (10).
  4. Dispositif selon les revendications 2 et 3, caractérisé en ce que les griffes (34) sont disposées sur une bague porte-griffes (28) qui est montée immobile axialement et tournante sur la douille (26).
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que les griffes (34) sont précontraintes élastiquement dans la position non expansée.
  6. Dispositif selon la revendication 5, caractérisé en ce que les griffes (34) possèdent une élasticité propre.
  7. Dispositif selon l'une des revendications 3 à 6, caractérisé en ce qu'à l'extrémité du cylindre (10), sur le bord périphérique intérieur, est ménagé un étage périphérique (20) dans lequel s'engagent les extrémités libres des griffes (34) à l'état écarté.
EP19980110132 1998-06-04 1998-06-04 Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer Expired - Lifetime EP0962316B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59801953T DE59801953D1 (de) 1998-06-04 1998-06-04 Spreizvorrichtung zur axialen Fixierung einer Zylinderhülse auf einer Welle einer Druckmaschine
ES98110132T ES2164394T3 (es) 1998-06-04 1998-06-04 Dispositivo separador para la fijacion axial de un manguito cilindrico sobre un arbol de una maquina de impresion.
EP19980110132 EP0962316B1 (fr) 1998-06-04 1998-06-04 Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980110132 EP0962316B1 (fr) 1998-06-04 1998-06-04 Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer

Publications (2)

Publication Number Publication Date
EP0962316A1 EP0962316A1 (fr) 1999-12-08
EP0962316B1 true EP0962316B1 (fr) 2001-10-31

Family

ID=8232051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980110132 Expired - Lifetime EP0962316B1 (fr) 1998-06-04 1998-06-04 Ecarteur pour fixer axialement un manchon cylindrique sur un arbre dans une machine à imprimer

Country Status (3)

Country Link
EP (1) EP0962316B1 (fr)
DE (1) DE59801953D1 (fr)
ES (1) ES2164394T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1000737B1 (fr) 1998-11-06 2002-03-13 Fischer & Krecke Gmbh & Co. Machine d'impression
DE102004021491B3 (de) 2004-04-30 2005-10-27 Man Roland Druckmaschinen Ag Vorrichtung zur Herstellung eines Druckbildes mittels eines Lasers
DE102004021494B4 (de) * 2004-04-30 2006-04-06 Man Roland Druckmaschinen Ag Vorrichtung zum Auf- und Abziehen einer Hülse
DE102014103251A1 (de) * 2014-03-11 2015-09-17 Inometa Gmbh & Co. Kg Druckwalze und Verfahren zum Montieren einer Druckwalze

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE470937C (de) * 1929-02-02 Johannisberg G M B H Maschf Vorrichtung zum Aufbringen der geaetzten Rohre auf die Formzylinder von Rotationstiefdruckmaschinen
DE122052C (fr) *
DE509605C (de) * 1930-10-10 Hamburger Fremdenblatt Brosche Tiefdruck-Formzylinder
DE475561C (de) * 1929-04-27 Strueder Sche Buchdruckerei Vorrichtung zum Befestigen kurzer Kupfermaentel auf den Formzylindern von Rotationstiefdruckmaschinen
US1582453A (en) * 1924-10-07 1926-04-27 John Walrath Print roller
US1891405A (en) * 1930-03-21 1932-12-20 Standard Process Corp Cylinder mounting for printing presses
FR1177560A (fr) * 1956-06-26 1959-04-27 Paper Machinery & Res Mandrin pour cylindre d'impression
DE1164967B (de) * 1958-12-24 1964-03-12 Walzengravierwerk Frankenberg Druckwalze fuer den Textildruck mit auswechselbarem Walzenmantel
US4651643A (en) * 1985-02-14 1987-03-24 Sidney Katz Adaptors for use with printing cylinder mandrels
JP3312144B2 (ja) * 1995-02-08 2002-08-05 株式会社小森コーポレーション グラビア印刷機の版胴装置

Also Published As

Publication number Publication date
EP0962316A1 (fr) 1999-12-08
ES2164394T3 (es) 2002-02-16
DE59801953D1 (de) 2001-12-06

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