EP0445645A1 - Cylindre d'impression pour machines d'impression rotatives - Google Patents

Cylindre d'impression pour machines d'impression rotatives Download PDF

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Publication number
EP0445645A1
EP0445645A1 EP91102917A EP91102917A EP0445645A1 EP 0445645 A1 EP0445645 A1 EP 0445645A1 EP 91102917 A EP91102917 A EP 91102917A EP 91102917 A EP91102917 A EP 91102917A EP 0445645 A1 EP0445645 A1 EP 0445645A1
Authority
EP
European Patent Office
Prior art keywords
filler
rubber blanket
printing unit
channel
film
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.)
Withdrawn
Application number
EP91102917A
Other languages
German (de)
English (en)
Inventor
Werner Weber
Judi Junghans
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0445645A1 publication Critical patent/EP0445645A1/fr
Withdrawn legal-status Critical Current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
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a printing unit cylinder for rotary printing presses with an axially parallel, narrow cylinder channel for receiving the blanket or printing plate ends, and with a filler for bridging the channel opening, such that vibrations of the cylinders are avoided when the cylinder channels are rolled over by two interacting cylinders.
  • a printing unit cylinder in whose cylinder channel or in the pit a filler piece is arranged which is supported on the bottom of the cylinder channel.
  • the filler itself is made of metal and is located in the middle third of the cylinder.
  • the outer contour of the filler is adapted to the bearer ring diameter or the pitch circle diameter of the drive wheels with high accuracy.
  • a filler is also provided in a second cylinder, so that both fillers roll onto one another in the interacting cylinders.
  • the filler is supported on both sides of the channel opening on the rubber blanket or the printing plate, that the filler consists of elastic material and with its outer contour projects beyond the cylinder diameter, and that the filler has a resilient extension which extends radially inwards into the channel and via the spring force of which the filler piece is held in contact with the rubber blanket or the pressure plate.
  • the filler By simply supporting the filler on both sides of the channel opening on the rubber blanket or the printing plate, the same is stored, which is much more elastic with a rubber blanket than with a printing plate. This also corresponds to the rolling characteristics of the two cylinder covers, so that a sensitive adjustment of the rolling behavior is already achieved in this way.
  • the filler itself is made of elastic material and is in accordance with its elasticity with its outer contour by a small amount over the cylinder diameter, so that the rolling pressure of two cylinders can also be sensitively maintained.
  • the protrusion of the filler can be matched to the hardness of the elastic material and also depends on the length of the filler and thus the absorption capacity of compressive forces. In practice, it may be advantageous for long cylinders if several Fill pieces are used.
  • the resilient approach of the filler prevents any rigid connection to the cylinder body.
  • a certain preload can be transferred to the filler piece, so that very small spring deflections of the outer contour of the filler piece occur. Due to the flat design of the filler pieces there is very little wear, register corrections can be carried out without any problems and the very inexpensive filler piece can be z. B. Renew each time you change the blanket.
  • the subclaims characterize advantageous embodiments of the invention, wherein the resilient extension of the filler can be wave-shaped or in the form of a grid, so that a very uniform spring force can be generated. It is also advantageous if the lower end of the resilient attachment is connected to a film which is clamped in a lasting rail with the rubber blanket and is stretched with the rubber blanket end.
  • the foil can, for example, be a metal foil made of rustproof material, which is vulcanized into the resilient attachment.
  • the film is designed as a metal film and comprises the lasting rail in the form of a hook.
  • the handling of this embodiment does not differ from that previously described, but has the advantage that the filler piece can be used for as long as desired without being dependent on the rubber blanket.
  • a further embodiment variant is characterized in that the film is attached to a web which engages in spring clips which are attached to the channel bottom. At In this version, an independent change of a filler is possible without the stretched rubber blanket being impaired in any way.
  • a blanket cylinder 1 is shown, which is covered with a blanket 2 in a known manner.
  • the ends 3, 4 of the rubber blanket 2 are suspended in a cylinder channel 5 in clamping spindles 6, 7.
  • the ends 3, 4 of the rubber blanket 2 are tensioned by turning the tensioning spindles.
  • a filler 9 is provided, which is supported on both sides of the channel opening 8 on the rubber blanket 2.
  • the contact surfaces 10 of the filler 9 are adapted to the radii of the rubber blanket 2.
  • a printing plate could also be clamped in the same way, the filler 9 also being supported in the manner shown.
  • the filler 9 is made of elastic material, for. B. Perbunan.
  • the outer contour 11 of the filler 9 protrudes by a small amount the cylinder diameter 12. The size of the amount depends on the hardness of the filler 9 and whether it is supported on a rubber blanket 2 or a printing plate.
  • the outer contour 11 of the filler 9 is selected such that when two cylinders roll off one another, the fillers of the two interacting cylinders absorb the same contact pressure as the rubber blanket 2, so that vibrations of the cylinders are avoided.
  • the filler 9 has a resilient extension 13 which extends radially inward into the channel 5. Due to the wavy design of the projection 13 shown in the drawing, the filler 9 is held in contact with the rubber blanket 2. Instead of the wave-shaped design, a lattice-shaped design of the extension 13 could also be achieved, so that a spring force can be applied in this way.
  • the lower end 14 of the resilient projection 13 is connected to a film 15, which is, for. B. can be a brass foil.
  • the connection between the lower end 14 and film 15 may, for. B. done by vulcanization. It is advantageous if the film 15 is clamped with the end 4 of the rubber blanket 2 into a lasting rail 16, as are used for the ends of the rubber blankets.
  • the resilient extension 13 can be fastened and tensioned together with the rubber blanket 2 by rotating the tensioning spindle 7 via the film 15.
  • the advantage of this design is the fact that the filler 9 can be changed or clamped with the rubber blanket 2 without additional effort.
  • Fig. 2 differs from Fig. 1 in that the film 17 is formed as a metal foil and the gusset rail 16 comprises a hook shape, the hook 18 of the film 17 is advantageously designed so that it the gusset rail 16 over its entire scope covered. This ensures a secure tension of the rubber blanket end 4.
  • the film 19 is fastened in a web 20 according to FIG. 3.
  • the web 20 is advantageously fastened to the channel bottom via spring clips 22. These are screwed to the floor by means of brackets 23 and screws 24. Recesses 25 in the web 20 allow the angled ends 26 to get caught in the recesses 25 and thus hold the web with the film 19 and thus the filler 9.
  • the web 20 is fixed in the cylinder channel 5 by means of stops 27 and is provided at both ends with hook-shaped projections 28, which enable the web 20 and thus the filler 9 to be easily removed.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP91102917A 1990-03-08 1991-02-28 Cylindre d'impression pour machines d'impression rotatives Withdrawn EP0445645A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4007343 1990-03-08
DE4007343 1990-03-08
DE4102858A DE4102858A1 (de) 1990-03-08 1991-01-31 Druckwerkszylinder fuer rotationsdruckmaschinen
DE4102858 1991-01-31

Publications (1)

Publication Number Publication Date
EP0445645A1 true EP0445645A1 (fr) 1991-09-11

Family

ID=25890913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102917A Withdrawn EP0445645A1 (fr) 1990-03-08 1991-02-28 Cylindre d'impression pour machines d'impression rotatives

Country Status (6)

Country Link
US (1) US5178068A (fr)
EP (1) EP0445645A1 (fr)
JP (1) JPH0720697B2 (fr)
AU (1) AU7269791A (fr)
CA (1) CA2037651A1 (fr)
DE (1) DE4102858A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807730A (en) * 1996-02-14 1998-09-15 Mitsui Chemicals, Inc. Nitrile hydratase
EP1598189A3 (fr) * 2004-05-19 2006-12-27 Kabushiki Kaisha Tokyo Kikai Seisakusho Dispositif pour remplir la fente d'un cylindre porte-blanchet

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217793C1 (de) * 1992-05-29 1993-12-09 Roland Man Druckmasch Offset-Gummituch und Verfahren zu dessen Herstellung
DE19516070A1 (de) * 1995-05-04 1996-11-07 Heidelberger Druckmasch Ag Einrichtung zur Überbrückung eines Zylinderkanals
DE19521645C2 (de) * 1995-06-14 1998-07-09 Koenig & Bauer Albert Ag Einrichtung für eine schlitzförmige Haltevorrichtung
JPH09300588A (ja) * 1996-05-17 1997-11-25 Mitsubishi Heavy Ind Ltd 輪転機のブランケット装着方法および装着装置
US5921183A (en) * 1997-02-14 1999-07-13 Heidelberger Druckmaschienen Ag Narrow gap plate with insertable lock-up mechanism, and method of using the same
US5749298A (en) * 1997-06-10 1998-05-12 Reeves Brothers, Inc. Arrangement for securing a printing blanket to a cylinder
FR2776566B1 (fr) * 1998-03-27 2000-06-16 Heidelberger Druckmasch Ag Cylindre de groupe d'impression equipe d'une plaque d'impression a extremites coudees, se fixant sur lui, pour machines rotatives a imprimer
US6026746A (en) * 1998-09-22 2000-02-22 E. R. Smith Associates, Inc. Lock-up assembly for plate cylinders of rotary presses
JP3069098B1 (ja) * 1999-09-22 2000-07-24 株式会社東京機械製作所 印刷機のブランケット装着装置及びブランケット
AU2003299285A1 (en) * 2002-12-16 2004-07-09 Contitech Elastomer-Beschichtungen Gmbh Printing blanket assembly and method for producing said printing blanket assembly
US7370579B2 (en) * 2002-12-16 2008-05-13 Koenig & Bauer Aktiengesellschaft Printing blanket assembly for a blanket cylinder and method for producing a printing blanket assembly
JP4309395B2 (ja) * 2002-12-16 2009-08-05 ケーニッヒ ウント バウエル アクチエンゲゼルシャフト 印刷ブランケットシリンダのための印刷ブランケット装置および印刷ブランケット装置の製造方法
JP4021856B2 (ja) * 2004-02-06 2007-12-12 西研グラフィックス株式会社 輪転印刷機の印刷胴構造
EP1588865A1 (fr) * 2004-04-22 2005-10-26 Kba-Giori S.A. Cylindre de gaufrage
EP2253471A1 (fr) * 2009-05-18 2010-11-24 Müller Martini Holding AG Cylindre de pression doté d'un tissu en caoutchouc pour une presse rotative offset à rouleaux
CN102501588A (zh) * 2011-09-28 2012-06-20 高斯图文印刷系统（中国）有限公司 一种用于印刷机的橡皮布夹头结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB934718A (en) * 1959-12-21 1963-08-21 Ernest Arthur Timson Improvements relating to printing cylinders
FR1367860A (fr) * 1963-08-13 1964-07-24 Crabtree & Sons Ltd R Perfectionnement aux machines à imprimer rotatives
DE3540581A1 (de) * 1985-11-15 1987-05-21 Roland Man Druckmasch Druckwerkzylinder mit einem in dessen zylindergrube angeordneten fuellstueck
EP0272526A2 (fr) * 1986-12-24 1988-06-29 Koenig & Bauer Aktiengesellschaft Dispositif de soutien dans l'évidement d'un cylindre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701996C (de) * 1937-11-27 1941-01-28 Koenig & Bauer Schnellpressfab Mit einer biegsamen Druckplatte versehener Formzylinder fuer Bogen-Rotationstiefdruckmaschinen
DE3110982A1 (de) * 1981-03-20 1982-10-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Plattenzylinder mit einer plattenbefestigungsvorrichtung
DK159251C (da) * 1983-03-12 1991-02-18 Basf Ag Fremgangsmaade til lukning af spalten mellem en paa et dybtrykapparats trykformcylinder opspaendt dybtrykplades ender, samt indretning ved dybtryksapparatet, til udoevelse af fremgangsmaaden
US4815380A (en) * 1987-02-21 1989-03-28 M.A.N. Roland Druckmaschinen Ag Printing machine cylinder with adjustable groove cover element
DE3727115A1 (de) * 1987-08-14 1989-02-23 Basf Ag Vorrichtung zum verschliessen des spaltes zwischen den enden einer auf einen formzylinder aufgespannten tiefdruckplatte
IT1231223B (it) * 1987-09-11 1991-11-26 Cerutti Spa Off Mec Metodo per giuntare le estremita' di una lastra per la stampa rotativa e giunzione cosi' ottenuta
DE4034767A1 (de) * 1989-12-01 1991-06-06 Heidelberger Druckmasch Ag Druckwerkszylinder fuer rotationsdruckmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB934718A (en) * 1959-12-21 1963-08-21 Ernest Arthur Timson Improvements relating to printing cylinders
FR1367860A (fr) * 1963-08-13 1964-07-24 Crabtree & Sons Ltd R Perfectionnement aux machines à imprimer rotatives
DE3540581A1 (de) * 1985-11-15 1987-05-21 Roland Man Druckmasch Druckwerkzylinder mit einem in dessen zylindergrube angeordneten fuellstueck
EP0272526A2 (fr) * 1986-12-24 1988-06-29 Koenig & Bauer Aktiengesellschaft Dispositif de soutien dans l'évidement d'un cylindre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807730A (en) * 1996-02-14 1998-09-15 Mitsui Chemicals, Inc. Nitrile hydratase
EP1598189A3 (fr) * 2004-05-19 2006-12-27 Kabushiki Kaisha Tokyo Kikai Seisakusho Dispositif pour remplir la fente d'un cylindre porte-blanchet

Also Published As

Publication number Publication date
AU7269791A (en) 1991-09-12
CA2037651A1 (fr) 1991-09-09
US5178068A (en) 1993-01-12
JPH04219242A (ja) 1992-08-10
JPH0720697B2 (ja) 1995-03-08
DE4102858A1 (de) 1991-09-12
DE4102858C2 (fr) 1992-05-07

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