EP0306986A2 - Plaque à imprimer pour l'impression rotative - Google Patents

Plaque à imprimer pour l'impression rotative Download PDF

Info

Publication number
EP0306986A2
EP0306986A2 EP88114808A EP88114808A EP0306986A2 EP 0306986 A2 EP0306986 A2 EP 0306986A2 EP 88114808 A EP88114808 A EP 88114808A EP 88114808 A EP88114808 A EP 88114808A EP 0306986 A2 EP0306986 A2 EP 0306986A2
Authority
EP
European Patent Office
Prior art keywords
plate
printing
cylinder
connection
pressure plate
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
EP88114808A
Other languages
German (de)
English (en)
Other versions
EP0306986B1 (fr
EP0306986A3 (en
Inventor
Daniele Temporin
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.)
Officine Meccaniche Giovanni Cerutti SpA
Original Assignee
Officine Meccaniche Giovanni Cerutti SpA
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 Officine Meccaniche Giovanni Cerutti SpA filed Critical Officine Meccaniche Giovanni Cerutti SpA
Priority to AT88114808T priority Critical patent/ATE91972T1/de
Publication of EP0306986A2 publication Critical patent/EP0306986A2/fr
Publication of EP0306986A3 publication Critical patent/EP0306986A3/de
Application granted granted Critical
Publication of EP0306986B1 publication Critical patent/EP0306986B1/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
    • B41F27/12—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
    • 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
    • B41F27/1281—Devices for attaching printing elements or formes to supports for attaching flexible printing formes details of the printing plate ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking

Definitions

  • the above invention relates to a method for joining the ends of a printing plate for a rotary printing press.
  • the invention also relates to the printing plate produced by the method.
  • it has already been proposed to replace the copper coating on the printing cylinder by a die forming the printing plate, the outer coating of which consists of photosensitive material. Since such matrices are usually manufactured as flat plates, there is a need to join the two ends of the pressure plate and to mount this pressure plate precisely and stationary on the pressure cylinder.
  • This known type of plate connection has several disadvantages. On the one hand, a special and, above all, highly precise machining of the two plate ends (punching process) is required in order to enable a positive connection of the ends. Furthermore, the punched-outs for the positive connection necessarily have considerable dimensions, which considerably restrict the usable area for applying the printed image to the plate. Furthermore, the printing plate described can only be used commonly with a cylinder to be specially trained. The known plates are not interchangeable and mostly the positive connection is to be made directly on the printing cylinder on which the printing plate is used.
  • connection joint between the plate ends can be inclined at a certain angle to the radius of the cylinder or can be arranged completely bent.
  • connection joint can be made as a permanent connection by filling an adhesive between the bent and joined plate ends.
  • the printing plate can also be made detachable in order to be able to return to its original, flat shape after the printing process. Further exemplary embodiments of the invention can be found in the subclaims.
  • the invention further relates to a printing plate, the ends of which are joined in accordance with the method shown.
  • the invention can be found in the following description of some exemplary embodiments, which are shown in the following drawings.
  • FIG. 1 shows a printing plate 1 of a known type for use in a rotary printing press.
  • the pressure plate 1 is only partially shown and has ends 2 and 3.
  • the plate 1 shown has already been deformed in such a way that an elastic body with a cylindrical shape is formed.
  • the plate ends 2 and 3 are not yet connected to one another in FIG. 1.
  • the length or development of the plate 1 is larger than the circumference of the printing cylinder used, since two opposite edge strips 2 and 3 must be available for the production of the plate joint.
  • Fig. 2 shows a partial section of the edge 3, which shows the structure of the printing plate.
  • the plate consists of a metallic Carrier layer 4, for example made of sheet steel, on which a photosensitive coating 5 made of polymer material is applied. This coating is then processed photochemically in a known manner in order to create the printed image on the printing plate.
  • FIG. 2 shows the right end piece of the plate, which has already been stripped of the photosensitive coating along the strip 14.
  • the strip 14 is later used to make the butt joint between the two plate ends.
  • the photosensitive layer 5 can be removed by photochemical means or by machining, as shown in FIG. 2.
  • FIG. 3 another exemplary embodiment of a printing plate is shown in section.
  • the plate consists of a metallic carrier material 4, a photosensitive layer 5 and a thin intermediate layer 6, which has the task of ensuring better anchoring of the photosensitive layer on the carrier material 4.
  • a strip 15 was stripped of the photosensitive coating. This can also be done, for example, by photochemical means, leaving the intermediate strip 6.
  • the preparation of the strip 15 can also be done by mechanical material removal. In this case, the intermediate layer 6 would also be removed in an advantageous manner.
  • the end strip 2 is provided with a bevel 12 in order to produce a butt connection, this by bending the strip 2 by approximately 90 ° and through Execution of two further turns in immediate succession (U-shaped) The angled end 11 is introduced into this crank, which was also bent through 90 ° in 18 of the strip 3.
  • the butt joint which is shown schematically in FIG. 4, is aligned in the radial direction and represents a butt joint with a large space requirement inside the pressure plate.
  • a corresponding groove with a suitable depth must therefore be provided in the pressure cylinder. If the depth of this groove is to be reduced, it is advantageous to use the embodiment according to FIG. 5, for the description of which the same reference numerals have been used.
  • the bending angle 8 of the crank 12 is less than 90 ° (with reference to the flat starting surface).
  • the bending angle 8 of the piece 11 is also less than 90 ° and essentially the same as the angle 8 of the crank 12. In this way, the connection is inclined with respect to the radial direction of the pressure cylinder and the corresponding groove for the insertion of the connection point is in depth ( radial) smaller.
  • Fig. 6 shows a further embodiment, in which the connection point completely towards the inner surface of the printing plate is folded.
  • the bend 17 of the angle is approximately 90 °.
  • a further bend 19 by 90 ° is provided, and the bend 18 takes place over an angle of 180. In this way, the butt joint 20 is made flat and requires little space on the inside of the pressure plate.
  • the butt joints which are shown schematically in FIGS. 4-6, are closed by at least one seam made of hardening filler material or adhesive along the groove between two adjacent folds 17, 18 of the edges 2, 3. This creates a butt joint for the pressure plate, which ensures continuity on the outer circumference of the pressure plate. Irregularities when using the pressure plate, unwanted wear of the pressure plate and other troublesome side effects are avoided.
  • a filler seam 8 i.e. a connection in the circumferential direction by means of self-hardening material or by means of an adhesive for producing a smooth and continuous peripheral surface of the plate, can be used for all the butt joints described.
  • the pressure plate is not permanently deformed as a cylinder.
  • the connecting seam made of adhesive or filler 8 can be destroyed or generally removed.
  • an adhesive or a hardening filling material 9 can also be provided inside the crank.
  • a connection is thus obtained in the axial direction, not a detachable mechanical connection, but rather leads to the establishment of a permanent connection between the cranked plate ends.
  • This type of connection which can also be used in other embodiments, leads to the formation of a permanently cylindrical pressure plate.
  • the proposed objects are achieved by the invention.
  • the butt joint allows the entire usable area of the printing cylinder to be used for recording the print image in practice.
  • the plate and the associated butt joint are simple and cheap, the connection can be detached if desired so that the plate again takes the form of a flat plate.
  • a limited space requirement for the butt joint in the interior of the plate can be achieved, space that can be created in a simple manner by providing a groove or a recess in the surface of the pressure cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
EP88114808A 1987-09-11 1988-09-09 Plaque à imprimer pour l'impression rotative Expired - Lifetime EP0306986B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114808T ATE91972T1 (de) 1987-09-11 1988-09-09 Druckplatte fuer den rotationsdruck.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2189887 1987-09-11
IT8721898A IT1231223B (it) 1987-09-11 1987-09-11 Metodo per giuntare le estremita' di una lastra per la stampa rotativa e giunzione cosi' ottenuta

Publications (3)

Publication Number Publication Date
EP0306986A2 true EP0306986A2 (fr) 1989-03-15
EP0306986A3 EP0306986A3 (en) 1989-11-15
EP0306986B1 EP0306986B1 (fr) 1993-07-28

Family

ID=11188415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114808A Expired - Lifetime EP0306986B1 (fr) 1987-09-11 1988-09-09 Plaque à imprimer pour l'impression rotative

Country Status (5)

Country Link
US (1) US4964338A (fr)
EP (1) EP0306986B1 (fr)
AT (1) ATE91972T1 (fr)
DE (1) DE3882625D1 (fr)
IT (1) IT1231223B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964338A (en) * 1987-09-11 1990-10-23 Officine Meccaniche G. Cerutti S.P.A. Method of mechanically joining the marginal portions of a blank of a printing plate for rotary printing, and printing plate thus produced
FR2716140A1 (fr) * 1994-02-15 1995-08-18 Roland Man Druckmasch Presse rotative à imprimer et procédé pour remplacer l'élément de revêtement devant être tendu d'un cylindre.
EP2286997A4 (fr) * 2008-05-27 2012-02-22 Masayuki Izume Plaque pour presse à imprimer et presse à imprimer
DE102011084205B4 (de) 2011-10-10 2022-12-08 Koenig & Bauer Ag Verfahren zur Herstellung einer Drucktucheinheit

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102858A1 (de) * 1990-03-08 1991-09-12 Heidelberger Druckmasch Ag Druckwerkszylinder fuer rotationsdruckmaschinen
DE4140768C2 (de) * 1991-12-11 1994-08-18 Roland Man Druckmasch Offset-Druckform
US5267550A (en) * 1992-06-04 1993-12-07 Jang Sun Sing Assembly structure for an external body of a kitchen soot extractor
DE4315996C1 (de) * 1993-05-13 1994-08-04 Roland Man Druckmasch Registereinrichtung für eine hülsenförmige Offset-Druckform
US6779449B1 (en) * 1994-09-15 2004-08-24 Man Roland Druckmaschinen Ag Carrying sleeve for printing and transfer forms and a process for production of such a carrying sleeve
US5687647A (en) * 1996-04-26 1997-11-18 Heidelberger Druckmaschinen Ag Plate cylinder with fixed tensioning plate mounting device
FR2763888B1 (fr) * 1997-05-28 1999-07-16 Rollin Sa Manchon perfectionne pour cylindre de machine d'impression ou analogue et procede de mise en place de ce manchon
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
JP4298702B2 (ja) * 2002-12-16 2009-07-22 ケーニッヒ ウント バウエル アクチエンゲゼルシャフト 印刷機における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
JP3878622B2 (ja) * 2004-05-19 2007-02-07 株式会社東京機械製作所 ブランケット胴の埋め部材
JP4684685B2 (ja) * 2005-03-03 2011-05-18 富士フイルム株式会社 感光性平版印刷版及びその製造方法
US20060287112A1 (en) * 2005-06-15 2006-12-21 Mallory Chester L Gaming machine with a coin collector
KR20120130517A (ko) * 2011-05-23 2012-12-03 삼성디스플레이 주식회사 러빙 장치
JP5942325B2 (ja) * 2012-09-14 2016-06-29 富士フイルム株式会社 円筒状印刷原版及びその製造方法、並びに、円筒状印刷版及びその製版方法
DE102019111749B4 (de) 2019-05-07 2025-06-12 Te Connectivity Germany Gmbh Elektrische Steckverbindung sowie elektrische Entität

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125056A (en) * 1964-03-17 kaiser
GB367436A (en) * 1930-11-20 1932-02-22 Leslie Thomas Albert Robinson Improvements in or relating to printing cylinders
US2322845A (en) * 1940-07-03 1943-06-29 Continental Can Co Method of making black iron sheet metal containers
US2685129A (en) * 1949-11-19 1954-08-03 Jr Robert R Myers Method for making arcuate printing plates
US4332197A (en) * 1980-05-22 1982-06-01 Beach Manufacturing Corp. Self-tensioning printing cylinder lock
DE3221206A1 (de) * 1982-06-04 1983-12-08 Basf Ag, 6700 Ludwigshafen Tiefdruckplatte zum aufspannen auf einen tiefdruck-spannzylinder und verfahren zu ihrer herstellung
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
IT1184342B (it) * 1985-02-27 1987-10-28 G Cerruti Spa Off Mec Procedimento per il bloccaggio di una lastra da stampa su un cilindro da stampa,dispositivo di bloccaggio nonche' relativa lastra
EP0199520A3 (fr) * 1985-04-19 1989-02-08 Vickers Plc Presse d'impression en creux et sa méthode de fabrication
US4727806A (en) * 1985-08-26 1988-03-01 Wilson Engraving Company, Inc. Pin register system for flexographic printing plates
DE3600774C1 (de) * 1986-01-14 1987-05-07 Du Pont Deutschland Verfahren zum Verkleben von photopolymerisierbaren Druckplatten oder Druckformen fuer den Flexodruck
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
JP3419896B2 (ja) * 1994-07-20 2003-06-23 ソニー株式会社 ディスク装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964338A (en) * 1987-09-11 1990-10-23 Officine Meccaniche G. Cerutti S.P.A. Method of mechanically joining the marginal portions of a blank of a printing plate for rotary printing, and printing plate thus produced
FR2716140A1 (fr) * 1994-02-15 1995-08-18 Roland Man Druckmasch Presse rotative à imprimer et procédé pour remplacer l'élément de revêtement devant être tendu d'un cylindre.
EP2286997A4 (fr) * 2008-05-27 2012-02-22 Masayuki Izume Plaque pour presse à imprimer et presse à imprimer
US8635952B2 (en) 2008-05-27 2014-01-28 Masayuki Izume Machine plate for printer and printer
DE102011084205B4 (de) 2011-10-10 2022-12-08 Koenig & Bauer Ag Verfahren zur Herstellung einer Drucktucheinheit

Also Published As

Publication number Publication date
EP0306986B1 (fr) 1993-07-28
IT1231223B (it) 1991-11-26
EP0306986A3 (en) 1989-11-15
ATE91972T1 (de) 1993-08-15
IT8721898A0 (it) 1987-09-11
US4964338A (en) 1990-10-23
DE3882625D1 (de) 1993-09-02

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