EP0769373A1 - Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer - Google Patents

Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer Download PDF

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Publication number
EP0769373A1
EP0769373A1 EP95116394A EP95116394A EP0769373A1 EP 0769373 A1 EP0769373 A1 EP 0769373A1 EP 95116394 A EP95116394 A EP 95116394A EP 95116394 A EP95116394 A EP 95116394A EP 0769373 A1 EP0769373 A1 EP 0769373A1
Authority
EP
European Patent Office
Prior art keywords
shaft
cylinder sleeve
sleeve
pressure cylinder
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.)
Granted
Application number
EP95116394A
Other languages
German (de)
English (en)
Other versions
EP0769373B1 (fr
Inventor
Bodo Steinmeier
Klaus Schirrich
Wilfried Dr. Kolbe
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
Priority to DE59504993T priority Critical patent/DE59504993D1/de
Priority to DK95116394T priority patent/DK0769373T3/da
Priority to ES95116394T priority patent/ES2126830T3/es
Priority to AT95116394T priority patent/ATE176194T1/de
Priority to EP95116394A priority patent/EP0769373B1/fr
Application filed by Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to US08/685,407 priority patent/US5638754A/en
Priority to JP8238522A priority patent/JPH09123396A/ja
Publication of EP0769373A1 publication Critical patent/EP0769373A1/fr
Application granted granted Critical
Publication of EP0769373B1 publication Critical patent/EP0769373B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/24Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26Arrangement of cylinder bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00Printing machines of special types or for particular purposes
    • B41P2217/10Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/15Machines with cylinders only supported on one side, e.g. cantilever construction

Definitions

  • the printing cylinder has an exchangeable hollow cylindrical sleeve made of plastic (the sleeve), on the outer circumferential surface of which the clichés are attached.
  • the inner diameter of the sleeve is adapted to the outer diameter of the shaft, so that the sleeve can be pushed onto the shaft with a precise fit in the axial direction.
  • the outer diameter of the sleeve is determined by the desired printing length. By changing the sleeve, the printing press can be set up for different printing lengths.
  • the shaft is provided with reduced-diameter bearing sections which are mounted in the bearing blocks.
  • the sleeve is thus supported only indirectly via the shaft on the bearing blocks.
  • This construction has the disadvantage that not only a precise mounting of the shaft in the bearing blocks, but also a precise seating of the sleeve on the shaft must be ensured if a perfect print quality is to be achieved.
  • the outer diameter of the bearings seated on the shaft must always be smaller than the inner diameter of the sleeve so that the sleeve can be pulled axially from the shaft. There is therefore only a limited range of diameters available for shaft mounting.
  • a further disadvantage is that the sleeves have to have a relatively large wall thickness for longer printing lengths, as a result of which the sleeves are given a relatively large weight and the dimensional stability of the sleeves is made more difficult.
  • the object of the invention is to provide a device of the type mentioned at the outset, which enables stable storage of printing cylinder sleeves with widely varying outer diameters and simple replacement of these sleeves.
  • the bearing points are thus seated directly on the bearing journal of the sleeve.
  • the diameter of the bearings can be selected regardless of the outer diameter of the sleeve in view of the stability requirements.
  • the bearings can consequently be dimensioned so that the sleeves provided for long print lengths, which have a relatively large outer diameter and are correspondingly heavy, can be stably supported, while on the other hand, for smaller print lengths, the outer diameter of the sleeve can be stored as required - if necessary also under the Bearing diameter - can be reduced.
  • the shaft only needs to be dimensioned in such a way that it can absorb the bending moments that occur when the sleeve is lifted out of the bearing blocks. These bending moments are also reduced by the fact that the sleeve itself has a high inherent stiffness due to the rigid arrangement of the bearing journals and is extended by the length of the two bearing journals so that it can reach up to the end of the shaft clamped in the lifting device.
  • the shaft is rotatably but axially movably held in the lifting device, and the outer diameter of the shaft gradually decreases toward the free end.
  • the inner diameter of the sleeve also gradually decreases towards the end that corresponds to the free end of the shaft.
  • the shaft is axially retracted, so that there is sufficient play over the entire length between the shaft and the sleeve, which allows the sleeve to rotate freely. If the sleeve is to be changed, the shaft is extended axially, so that the shaft sections with the larger diameter enter the corresponding sections of the bore of the sleeve with a precise fit.
  • the sleeve is thus kept largely free of play on the shaft, so that it can be safely raised with the aid of the lifting device and the shaft.
  • This construction has the advantage that the shaft can have a relatively large outer diameter in relation to the inner diameter of the sleeve over most of its length and thus a correspondingly high bending stiffness. The outer diameter is greatest at the end of the shaft that is clamped in the lifting device and has to absorb the greatest bending moments.
  • Figures 1 to 3 each show in longitudinal section a pressure cylinder sleeve, preferably made of metal, hereinafter referred to as “sleeve 10", which is interchangeably arranged on a shaft 12.
  • the middle section of the sleeve 10 is designed as a hollow cylindrical drum 14, the outer circumferential surface of which serves to clamp printing plates, not shown.
  • At each end of the drum 14 there is a hollow bearing journal 16, which is fixedly connected to the relevant end wall of the drum 14.
  • a bearing cover 22 is fixed on the bearing block 20, so that the rolling bearing 18 is firmly enclosed and held in position.
  • the bearing journal 16 At one end of the sleeve 10 (on the right in the drawing, the bearing journal 16 has a tubular extension 24 with a reduced diameter.
  • the right side in the drawing, on which the gear 26 is located, will be referred to below as the drive side, while the opposite side will be referred to as the control side.
  • the inner diameter of the sleeve 10 gradually decreases from the drum 14 to the bearing pins 16 and further to the extension 24.
  • a recess 28 is provided in the journal 16 at the free end.
  • the shaft 12 has a main section 30, which extends in FIG. 1 with little play through the control-side bearing journal 16 and to which an end section 34 with a smaller diameter adjoins at the free end via a cone 32.
  • the end section 34 is in turn at the free end provided with a cone.
  • the main section 30 is connected via a short cone to a base section 36 with a larger diameter, which extends through a lifting device 38 and is connected to an axial drive 40 at the free end.
  • Figure 1 shows the state during operation of the printing press, in which the sleeve 10 is driven via the gear 26, while the shaft 12 is held in rotation in the lifting device 38 and does not touch the sleeve 10 at any point. If the sleeve 10 including the gearwheel 26 is to be replaced when the printing machine is at a standstill (or at least when the printing unit belonging to the sleeve 10 is at a standstill), the bearing caps 22 are first removed so that the bearing blocks 20 are open at the top. The axial drive 40 is then actuated to extend the shaft 12 horizontally in the direction of the drive side.
  • the end section 34 of the shaft comes into mating engagement with the bore of the tubular extension 24
  • the main section 30 of the shaft comes into mating engagement with the bore of the drive-side bearing journal 16
  • the base section 36 of the shaft mates with the recess 28 of the other bearing journal, as shown in Figure 2.
  • the respective conical surfaces of the shaft 12 serve as chamfers.
  • the base section 36 of the shaft is then clamped and firmly clamped with the aid of a clamping jaw 42 of the lifting device 38, and the shaft 12 held in this way is raised together with the sleeve 10 with the aid of the lifting device 38 into the position shown in FIG. 2.
  • the journals 16 with the roller bearings 18 are lifted out of the bearing blocks 20 so that the sleeve 10 is cantilevered above the bearing blocks 20. In this state, the unit consisting of sleeve 10, gear 26 and roller bearings 18 can then be pulled off the shaft 12 axially to the drive side, as shown in FIG. 3.
  • another sleeve 10 which differs from the removed sleeve only in the outer diameter of the drum 14, can be installed by going through the operations described above in reverse order.
  • a correct insertion of the bearings 18 into the bearing blocks 20 is thereby facilitated in that the sleeve is held on the shaft 12 without play when the lifting device is lowered (as in FIG Figure 2).
  • the device described above has the advantage that the shaft 12 does not rotate with the sleeve 10 even when the printing press is running, which enables the base section 36 to be fixed more easily in the lifting device 38 and the shaft to be easily coupled to the axial drive 40.
  • a permanently effective axial guide for the shaft can therefore also be provided in the lifting device.
  • both journals 16 are firmly engaged with the shaft 12, so that the inherent stiffness of the sleeve also contributes to the stabilization of the shaft 12 and due to the weight of the sleeve on the only one-sided clamped shaft 12 acting bending forces can be better absorbed. These bending forces occur primarily in the base section 36 of the shaft, which has the largest diameter in this construction.
  • the upper apex of the shaft abuts the inner circumference of the sleeve after a short stroke, so that the sleeve is carried upwards as the sleeve continues to move upward.
  • FIGS. 4 to 6 show a further embodiment in which the shaft 12 rotates with the sleeve 10 during the operation of the printing press (in the state according to FIG. 4).
  • the control-side bearing pin 16 is extended in this embodiment and also has a tubular extension 44 with a smaller diameter.
  • the sleeve 10 sits with its journal 16 essentially free of play, but axially displaceably on the shaft 12.
  • the shaft 12 has a bushing 46 instead of the base section 36 in the area running through the lifting device 38 which forms with the main section 30 of the shaft an annular gap 48 open to the drive side (FIG. 6).
  • the clamping jaw 42 of the lifting device engages on the outer circumference of the bush 46 during the lifting process (FIG. 5).
  • An end portion of the sleeve 46 fits snugly against the circumference of the shaft 12 so that the weight forces acting on the shaft 12 can be transmitted to the sleeve 48 and then absorbed by the clamping mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Support Of The Bearing (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP95116394A 1995-10-18 1995-10-18 Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer Expired - Lifetime EP0769373B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK95116394T DK0769373T3 (da) 1995-10-18 1995-10-18 Indretning til udskiftning af trykkecylinderkapper i trykkemaskiner
ES95116394T ES2126830T3 (es) 1995-10-18 1995-10-18 Dispositivo para el cambio de los casquillos de cilindros de impresion en maquinas de imprimir.
AT95116394T ATE176194T1 (de) 1995-10-18 1995-10-18 Vorrichtung zum wechseln von druckzylinderhülsen in druckmaschinen
EP95116394A EP0769373B1 (fr) 1995-10-18 1995-10-18 Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer
DE59504993T DE59504993D1 (de) 1995-10-18 1995-10-18 Vorrichtung zum Wechseln von Druckzylinderhülsen in Druckmaschinen
US08/685,407 US5638754A (en) 1995-10-18 1996-07-24 Apparatus for changing printing cylinder sleeves in printing machines
JP8238522A JPH09123396A (ja) 1995-10-18 1996-08-21 印刷機内の印刷シリンダスリーブ交換装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95116394A EP0769373B1 (fr) 1995-10-18 1995-10-18 Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer

Publications (2)

Publication Number Publication Date
EP0769373A1 true EP0769373A1 (fr) 1997-04-23
EP0769373B1 EP0769373B1 (fr) 1999-01-27

Family

ID=8219726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116394A Expired - Lifetime EP0769373B1 (fr) 1995-10-18 1995-10-18 Dispositif de changement des manchons de cylindres d'imprimerie dans les machines à imprimer

Country Status (7)

Country Link
US (1) US5638754A (fr)
EP (1) EP0769373B1 (fr)
JP (1) JPH09123396A (fr)
AT (1) ATE176194T1 (fr)
DE (1) DE59504993D1 (fr)
DK (1) DK0769373T3 (fr)
ES (1) ES2126830T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1000737A1 (fr) * 1998-11-06 2000-05-17 Fischer & Krecke Gmbh & Co. Machine d'impression
EP1025996A1 (fr) * 1999-02-01 2000-08-09 Fischer & Krecke Gmbh & Co. Cylindre porte-cliché
US6647880B2 (en) 2000-10-13 2003-11-18 Fischer & Krecke Gmbh & Co. Flexographic printing press with device for washing the back-pressure cylinder
DE202016102779U1 (de) * 2016-05-25 2017-08-28 Bobst Bielefeld Gmbh Vorrichtung zur Betätigung einer hydraulischen Trägerstange einer Rotationsdruckmaschine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113346A (en) 1996-07-31 2000-09-05 Agfa Corporation Method for loading and unloading a supply of plates in an automated plate handler
US5816154A (en) * 1997-05-09 1998-10-06 Bryce International, L.L.C. Print cylinder support for axial removal of a cylindrical sleeve
CA2224762A1 (fr) * 1998-01-23 1999-07-23 Bob Erbstein Unite a decoupage variable pour une presse
US6142073A (en) * 1999-08-20 2000-11-07 Paper Converting Maching Company Method and apparatus for exchanging a roll of a printing press
US6250223B1 (en) * 1999-10-22 2001-06-26 Heidelberger Druckmaschinen Ag Blanket tube removal device
DE10008224B4 (de) * 2000-02-23 2006-06-29 Man Roland Druckmaschinen Ag Vorrichtung zum Ein- und Ausbau eines Zylinders einer Druckmaschine
US20060096478A1 (en) * 2003-08-25 2006-05-11 Giorgio Marchini Printing machine with extensible print cylinder for easy change of the print sleeve
ES2242520B1 (es) * 2004-01-14 2007-02-16 Comexi, S.A. Dispositivo automatico de manipulacion y transporte de camisas de impresion.
DE102004037253B4 (de) * 2004-07-31 2013-09-05 Windmöller & Hölscher Kg Sleevewechselsystem
ES1065654Y (es) * 2006-07-27 2008-01-16 Rotatek S A Cilindro con aros de rodadura para maquinas de impresion offset
DE102006048140B3 (de) * 2006-10-10 2008-04-10 Windmöller & Hölscher Kg Antrieb einer Hülsenaufnahmeeinrichtung in einem Magazin
US7753595B2 (en) * 2007-03-01 2010-07-13 Hewlett-Packard Development Company, L.P. Printer drum bearing mount
US8528210B2 (en) * 2009-08-18 2013-09-10 Mitsubishi Kagaku Imaging Corporation Universal magnet roller press apparatus, assembly, and method
EP3606759A1 (fr) 2017-04-07 2020-02-12 Bobst Firenze S.r.l. Groupe d'impression avec manchon d'impression interchangeable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1327229A (fr) * 1962-04-05 1963-05-17 Traitements Chimiques Des Text Dispositif perfectionné d'impression formé d'un rouleau et de son arbre porteur
BE865614A (fr) * 1977-04-06 1978-10-02 Thermo King Corp Circuit de demarrage a utiliser avec un moteur-generatrice a courant continu
EP0290853A2 (fr) * 1987-05-09 1988-11-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Palier pour cylindre de groupe d'impression
EP0485913A1 (fr) * 1990-11-15 1992-05-20 MAN Roland Druckmaschinen AG Palier pour cylindre de groupe d'impression
DE4036390A1 (de) * 1990-11-15 1992-05-21 Roland Man Druckmasch Lagerung fuer einen druckwerkzylinder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103812A (en) * 1932-09-22 1937-12-28 Standard Process Corp Multiple impression printing apparatus and method
US2245617A (en) * 1939-09-13 1941-06-17 Rice Barton Corp Printing machine
US2605701A (en) * 1949-08-09 1952-08-05 William C Huebner Cylinder mounting means for rotary printing apparatus
US3039387A (en) * 1959-08-13 1962-06-19 Miehle Goss Dexter Inc Apparatus affording interchange of cylinders in printing presses
US5272977A (en) * 1992-02-05 1993-12-28 Toshiba Kikai Kabushiki Kaisha Printing plate mounting apparatus, printing plate replacement apparatus and printing plate replacement method
DE4241565A1 (de) * 1992-12-10 1994-06-16 Roland Man Druckmasch Lagerung für einen mit einer aufschiebbaren Hülse ausgestatteten Druckzylinder
DE4340915A1 (de) * 1993-02-23 1994-08-25 Heidelberger Druckmasch Ag Auswechselbare Andrückhülse
JP2724668B2 (ja) * 1993-09-24 1998-03-09 株式会社東京機械製作所 刷版配送装置
US5370047A (en) * 1993-12-01 1994-12-06 Paper Converting Machine Company Flexographic press adapted for short runs and method
DE4415340C2 (de) * 1994-05-02 1996-03-14 Roland Man Druckmasch Druckwerkszylinder einer Rollenrotationsdruckmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1327229A (fr) * 1962-04-05 1963-05-17 Traitements Chimiques Des Text Dispositif perfectionné d'impression formé d'un rouleau et de son arbre porteur
BE865614A (fr) * 1977-04-06 1978-10-02 Thermo King Corp Circuit de demarrage a utiliser avec un moteur-generatrice a courant continu
EP0290853A2 (fr) * 1987-05-09 1988-11-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Palier pour cylindre de groupe d'impression
EP0485913A1 (fr) * 1990-11-15 1992-05-20 MAN Roland Druckmaschinen AG Palier pour cylindre de groupe d'impression
DE4036390A1 (de) * 1990-11-15 1992-05-21 Roland Man Druckmasch Lagerung fuer einen druckwerkzylinder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1000737A1 (fr) * 1998-11-06 2000-05-17 Fischer & Krecke Gmbh & Co. Machine d'impression
US6267056B1 (en) 1998-11-06 2001-07-31 Fischer & Krecke Gmbh & Co. Printing machine
EP1025996A1 (fr) * 1999-02-01 2000-08-09 Fischer & Krecke Gmbh & Co. Cylindre porte-cliché
US6523470B2 (en) 1999-02-01 2003-02-25 Fischer & Krecke Gmbh & Co. Printing cylinder
US6647880B2 (en) 2000-10-13 2003-11-18 Fischer & Krecke Gmbh & Co. Flexographic printing press with device for washing the back-pressure cylinder
DE202016102779U1 (de) * 2016-05-25 2017-08-28 Bobst Bielefeld Gmbh Vorrichtung zur Betätigung einer hydraulischen Trägerstange einer Rotationsdruckmaschine
US11001052B2 (en) 2016-05-25 2021-05-11 Bobst Bielefeld Gmbh Apparatus for actuating a hydraulic carrier rod of a rotary printing machine

Also Published As

Publication number Publication date
US5638754A (en) 1997-06-17
DK0769373T3 (da) 1999-09-13
DE59504993D1 (de) 1999-03-11
EP0769373B1 (fr) 1999-01-27
ES2126830T3 (es) 1999-04-01
JPH09123396A (ja) 1997-05-13
ATE176194T1 (de) 1999-02-15

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