EP0133943A2 - Cylindre de plaque, principalement pour l'impression flexographique - Google Patents

Cylindre de plaque, principalement pour l'impression flexographique Download PDF

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Publication number
EP0133943A2
EP0133943A2 EP84108527A EP84108527A EP0133943A2 EP 0133943 A2 EP0133943 A2 EP 0133943A2 EP 84108527 A EP84108527 A EP 84108527A EP 84108527 A EP84108527 A EP 84108527A EP 0133943 A2 EP0133943 A2 EP 0133943A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing plate
plate cylinder
printing
holding body
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Withdrawn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
EP84108527A
Other languages
German (de)
English (en)
Other versions
EP0133943A3 (fr
Inventor
Gianfranco Gibellino
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
Publication of EP0133943A2 publication Critical patent/EP0133943A2/fr
Publication of EP0133943A3 publication Critical patent/EP0133943A3/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Withdrawn legal-status Critical Current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
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/125—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end on a curvilinear path, e.g. by winding on a roll

Definitions

  • the above invention relates to a plate receiving cylinder, mainly for flexographic printing plates.
  • the plate receiving cylinder of the type mentioned receives a longitudinal groove in the longitudinal direction of its outer casing, which has known clamping and fastening means in order to clamp the ends of the pressure plates which are placed circumferentially around the cylinder.
  • each cylinder receives two different printing plates arranged side by side.
  • tightening means e.g. B. springs or eccentric devices, which are not described in detail
  • the side-by-side pressure plates are tightened with one end in the longitudinal groove, then looped around the cylinder circumference and also clamped with the other remaining ends in the longitudinal groove of the cylinder.
  • the object of the above invention is to propose a new printing plate cylinder which can accommodate two printing plates lying next to one another and also to enable an adjustment process in the circumferential direction of the cylinder between the two adjacent plates so as to make quick adjustment and safe setting with little effort between the two printing plates can.
  • the pressure plate cylinder has a longitudinal groove, which has fastening means and extends over half the length of the cylinder, and in that the other half of the cylinder has a longitudinal recess which has a round cross section and rotatably accommodates a holding body which also has a longitudinal groove, which is provided with known clamping means for the ends of the pressure plate and that this receiving body is arranged releasably or fixably in its position with respect to the pressure plate cylinder.
  • the known printing plate cylinders 1 have a longitudinal groove 2 which extends over the entire length of the cylinder jacket.
  • this groove 2 as is known, clamping pliers or spring-loaded devices or eccentric clamping devices are provided, by means of which the ends of the pressure plates 3 can be clamped after they have been wrapped around the cylinder 1.
  • the printing plates are used for this purpose 3 first fixed with their ends 3a in the clamping devices which are arranged in the longitudinal groove 2. Subsequently, the plates 3 are placed around the circumference of the cylinder 1, as indicated by the arrows f. Finally, the ends 3b are clamped in the groove 2. It is obvious that in this embodiment an accurate registration between the pressure plates 3 in the circumferential direction of the cylinder 1 is extremely difficult, if not impossible.
  • FIG. 2 shows a plate holding cylinder 1 according to the invention, which has a known longitudinal groove 2 on one side, but which only extends to the middle (M) in the longitudinal direction of the cylinder 1.
  • the remaining half of the cylinder 1, on the other hand, has a recess or longitudinal bore 4, which advantageously has a round cross section and is advantageously produced by a drilling or boring process.
  • the recess 4 receives, rotatable about its longitudinal axis, a holding body, which is identified overall by 5.
  • the holding body 5 also has a longitudinal groove 2 ', which is aligned with the groove 2, which is fixed in the cylinder and was advantageously produced by a milling process.
  • FIG 3 shows the device according to the invention in more detail in a front view.
  • the cylinder 1 has a recess 4 on at least one side, which has a round cross section.
  • a holding or supporting body is used, the is generally designated 5.
  • the supporting body can perform a rotary movement in the direction of the arrow les g, furthermore it has a longitudinal groove 2 ', which in a known manner has clamping means for fixing the ends 3a and 3b of the pressure plate 3.
  • the holding body 5 protrudes slightly from the cylinder in order to accommodate a half flange 6 at this point, which is firmly connected to the holding body 5.
  • the half flange 6 has a window-like opening 7, which is penetrated by a clamping screw 8 which is screwed into the body of the cylinder 1.
  • the half flange 6 also has a scale 9 at a suitable point, which e.g. cooperates with an arrow or a vernier 10, which is attached to the cylinder 1.
  • a worm wheel 11 is connected to the latter, which is operatively connected to a small threaded spindle 12 which is rotatably received by small bearings 13 which are fastened to the cylinder 1.
  • the ends of the threaded spindle 12 have polygonal recesses into which a key-like tool 5, e.g. a hexagon key 15 can be used.
  • the thread of the spindle 12 is of particular advantage as a fine thread, in order to make it possible to carry out setting and registration processes in the range of 1/10 mm.
  • the threaded spindle 12 transmits a controllable rotary movement to the gear 11, as a result of which the holding body 5 is given a rotation in the desired direction of movement.
  • the half-flange 6 advantageously has a scale that cooperates, for example, with a measurement arrow or a vernier, all of which are designated by 10.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP84108527A 1983-07-29 1984-07-19 Cylindre de plaque, principalement pour l'impression flexographique Withdrawn EP0133943A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22329/83A IT1163871B (it) 1983-07-29 1983-07-29 Rullo porta-lastra,in particolare per stampa flexografica
IT2232983 1983-07-29

Publications (2)

Publication Number Publication Date
EP0133943A2 true EP0133943A2 (fr) 1985-03-13
EP0133943A3 EP0133943A3 (fr) 1987-04-15

Family

ID=11194743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108527A Withdrawn EP0133943A3 (fr) 1983-07-29 1984-07-19 Cylindre de plaque, principalement pour l'impression flexographique

Country Status (4)

Country Link
US (1) US4587901A (fr)
EP (1) EP0133943A3 (fr)
JP (1) JPS6054851A (fr)
IT (1) IT1163871B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579941A1 (fr) * 1992-07-08 1994-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour attacher et changer la position d'un habillage de cylindre

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3731779A1 (de) * 1987-09-22 1989-03-30 Koenig & Bauer Ag Vorrichtung zum aufspannen von biegsamen druckplatten auf formzylinder von rotationsdruckmaschinen
JP2651720B2 (ja) * 1989-03-18 1997-09-10 株式会社東京機械製作所 輪転印刷機におけるスポット印刷方法及びスポット印刷用ブランケット胴
DE3921474A1 (de) * 1989-06-30 1991-01-10 Heidelberger Druckmasch Ag Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
US5255056A (en) * 1990-04-20 1993-10-19 Minnesota Mining And Manufacturing Co. Photoconductor film clamping and tensioning system and method of use
DE4221133C2 (de) * 1992-06-27 1996-02-29 Heidelberger Druckmasch Ag Einrichtung zum Übertragen von Spannkräften an Druckwerkzylindern
ES2300209B1 (es) * 2006-11-22 2009-05-01 Comexi, S.A. Metodo de ajuste posicional de cuerpos impresores en maquinas impresoras flexograficas.
TWI316466B (en) * 2007-03-09 2009-11-01 Ind Tech Res Inst Mold structure and the manufacturing method thereof
EP4075013A4 (fr) * 2019-12-11 2022-12-28 Hitachi Astemo, Ltd. Amortisseur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839722A (en) * 1929-01-19 1932-01-05 American Bank Note Co Printing machine
US3335663A (en) * 1964-08-12 1967-08-15 Miehle Goss Dexter Inc Plate lockup for reversible plate cylinder
US3921780A (en) * 1974-07-18 1975-11-25 Gen Electric Assembly for mounting a print head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105452A (en) * 1935-12-18 1938-01-11 New Era Mfg Company Plate clamp
US2243195A (en) * 1938-06-10 1941-05-27 Goss Printing Press Co Ltd Blanket cylinder
US3008410A (en) * 1958-09-23 1961-11-14 Hoe & Co R Plate clamp
FR1223614A (fr) * 1959-01-30 1960-06-17 Marinoni Dispositif de mise en tension de plaques d'impression sur le cylindre de machines àimprimer rotatives
DE1228627B (de) * 1964-04-25 1966-11-17 Roland Offsetmaschf Vorrichtung zum Befestigen einer biegsamen Druckplatte auf dem Formzylinder einer Rotationsdruckmaschine
DE1198376B (de) * 1964-04-29 1965-08-12 Roland Offsetmaschf Anordnung zum Befestigen des Gummituches auf dem Gummizylinder von Offsetdruckmaschinen
DE2220652C3 (de) * 1972-04-27 1975-04-17 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorrichtung zum Befestigen von Druckplatten auf dem Plattenzylinder einer Rotationsdruckmaschine
DE2225016C3 (de) * 1972-05-23 1976-01-29 Koenig & Bauer Ag Vorrichtung zum aufspannen von biegsamen druckplatten auf formzylinder von rotationsdruckmaschinen
DE2545124C3 (de) * 1975-10-08 1979-05-10 Albert-Frankenthal Ag, 6710 Frankenthal Vorrichtung zum Aufspannen von biegsamen Druckplatten auf dem Formzylinder von Rotations-Tiefdruckmaschinen
JPS53100010A (en) * 1977-02-09 1978-09-01 Tokyo Kikai Seisakushiyo Kk Printing cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839722A (en) * 1929-01-19 1932-01-05 American Bank Note Co Printing machine
US3335663A (en) * 1964-08-12 1967-08-15 Miehle Goss Dexter Inc Plate lockup for reversible plate cylinder
US3921780A (en) * 1974-07-18 1975-11-25 Gen Electric Assembly for mounting a print head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0579941A1 (fr) * 1992-07-08 1994-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour attacher et changer la position d'un habillage de cylindre

Also Published As

Publication number Publication date
JPH0439425B2 (fr) 1992-06-29
IT1163871B (it) 1987-04-08
JPS6054851A (ja) 1985-03-29
US4587901A (en) 1986-05-13
IT8322329A0 (it) 1983-07-29
EP0133943A3 (fr) 1987-04-15

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Inventor name: GIBELLINO, GIANFRANCO