EP0443350B1 - Vorrichtung zum Aufspannen einer biegsamen Druckform auf einen Zylinder einer Rotationsdruckmaschine - Google Patents

Vorrichtung zum Aufspannen einer biegsamen Druckform auf einen Zylinder einer Rotationsdruckmaschine Download PDF

Info

Publication number
EP0443350B1
EP0443350B1 EP91101248A EP91101248A EP0443350B1 EP 0443350 B1 EP0443350 B1 EP 0443350B1 EP 91101248 A EP91101248 A EP 91101248A EP 91101248 A EP91101248 A EP 91101248A EP 0443350 B1 EP0443350 B1 EP 0443350B1
Authority
EP
European Patent Office
Prior art keywords
clamping
spindle
channel
plate
cylinder
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
EP91101248A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0443350A1 (de
Inventor
Klaus T. Reichel
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0443350A1 publication Critical patent/EP0443350A1/de
Application granted granted Critical
Publication of EP0443350B1 publication Critical patent/EP0443350B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B41F27/1225—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 substantially rectilinearly
    • B41F27/1237—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 substantially rectilinearly by translatory motion substantially perpendicular to support surface

Definitions

  • the invention relates to a device for clamping a flexible printing plate on a plate cylinder of a rotary printing press.
  • a device for clamping a flexible printing plate on the plate cylinder of a rotary printing press in which a rotatable in a groove or pit of the plate cylinder winding rod or spindle by means of a gap introduced into the spindle, the rear end of the Pressure plate detected and in which the spindle with its outer surface jammed the hook-like bent front end of the pressure plate at the edge of the pit.
  • the rear end of the pressure plate has a double bend, the portion of which forming the plate edge is inserted into the gap of the spindle.
  • This device has the disadvantage that the channel formed in the surface of the cylinder must be relatively wide so that the pressure plate can be removed quickly and safely when unclamping.
  • this device has the disadvantage that the rear end of the pressure plate is permanently deformed so much by the use of a winding rod that the pressure plate cannot be used repeatedly in every case.
  • a cylindrical clamping channel houses an eccentrically mounted clamping spindle which, with its spindle body, presses the plate ends against a channel wall.
  • the leading plate end must be folded and inserted into a slot in the clamping spindle so that it can be reliably grasped and pulled during clamping.
  • the clamping channel must be made correspondingly wide.
  • the ends of a flexible pressure plate are tensioned in the gap between a clamping spindle arranged in the cylinder pit and the space between the latter and the pit wall.
  • the clamping spindle is supported with play in order to be able to clamp printing plates of different thicknesses. But here too the leading plate end is folded and inserted into a slot in the clamping spindle.
  • the plate ends are gripped by the teeth of a centrally mounted clamping spindle in connection with a central and tangentially tapering pit wall.
  • US-A-3276365 shows a plate clamping device in which the trailing plate end is gripped by a toothing of a clamping spindle in connection with the displaceable toothed rack.
  • the centrally mounted clamping spindle is secured against bending by two support elements in the cylinder pit.
  • the object of the invention is to provide a device for clamping flexible printing plates on plate cylinders so that the rear end of the printing plate need only be bent simply and at an obtuse angle, so that the insertion channel into which the two ends of the printing plate during clamping can be inserted, can be made narrower, and that the pressure plate can be tightened.
  • the clamping device shown in FIG. 1 is essentially formed from a pit introduced into a plate cylinder 1, which has an insertion channel 2 and a cylindrical clamping channel 3 running parallel to the cylinder axis (not shown), and a clamping spindle 4 arranged axially parallel to the clamping channel 3.
  • the effective width of the insertion channel 2 is identified by reference number 17.
  • a wall of the insertion channel 2 has a segment 5 in the form of a segment of a circle, which is at the same time a segment of a circle of the circumferential circle of the clamping channel 3.
  • the clamping spindle 4 has a cylindrical spindle body 6 and bearing journal 7, the axis 8 of the spindle body 6 being offset with respect to the axis 9 of the bearing journal 7.
  • the clamping spindle 4 is arranged in the clamping channel 3 so that the axis 9 of the journal 7 is identical to the axis of the clamping channel 3. This results in an eccentric arrangement of the spindle body 6 in the clamping channel 3.
  • a hole 11 or groove is made radially approximately in the middle of the clamping spindle, in which a support element 12 is arranged to limit the deflection of the clamping spindle.
  • the support element 12 has a pin 13, a plurality of superimposed spring elements (14) (plate springs) guided by the pin 13 and a cylindrical roller 15 aligned axially parallel to the clamping spindle 4.
  • the cylindrical roller 15 is pressed by the spring elements 14 against the wall of the clamping channel 3 and thus counteracts the deflection of the clamping spindle 4.
  • the pin 13 limits the deflection of the clamping spindle 4 at the same time.
  • the support element 12 can optionally also be formed by a helical spring or another elastic element and a cylindrical roller or ball resting directly on the helical spring or running in a roller cage resting on the helical spring. In this case, the deflection limitation results from the length of the fully compressed coil spring.
  • the clamping spindle 4 When a printing plate 16 is clamped onto the plate cylinder 1, the front end of the printing plate 16 bent forward at an acute or right angle and the rear end of the printing plate 16 bent forward at an obtuse angle are inserted into the insertion channel 2. Then the clamping spindle 4 is rotated in a manner known per se, for example by means of a worm gear, in such a way that the spindle body 6 grasps the two ends of the pressure plate 16 and presses against the segment 5 in the form of a segment of a circle. 1, the clamping spindle 4 is thus rotated counterclockwise.
  • the surface roughness of the spindle body 6 required here can be ensured either by the standard roughness or by a separate manufacturing step, such as flanging.
  • FIG. 2 shows a schematic side view of a clamping spindle that can be used in the clamping device according to a second embodiment of the invention.
  • the illustration of the plate cylinder 1, the insertion channel 2 and the clamping channel 3 and the plate ends of the pressure plate 16 is omitted for the sake of clarity, since this, like the arrangement and the functional principle of the clamping spindle 24, correspond to the corresponding features of the clamping spindle 4 from the first exemplary embodiment correspond.
  • the clamping spindle 24 has a spindle body 26, bearing journal 27 and a support section 30 located on the spindle body 26.
  • the axis 28 of the spindle body 26 is offset from the axis 29 of the journal 27, so that the clamping spindle 24 acts as an eccentric.
  • the approximately in the middle of the spindle body 26 arranged support section 30 is cylindrical, its axis of rotation is identical to the axis 29 of the bearing journal 27 and its diameter is such that the support section 30 is arranged in the clamping channel 3 with a sliding fit, that is, in the clamping channel 3 is rotatably mounted.
  • the clamping spindle 24 is correspondingly rotated in the first exemplary embodiment by means of a device known per se, such as a worm gear, in such a way that the eccentrically mounted spindle body 26 detects the two ends of the pressure plate 16 and so on pulls as far as possible into the insertion channel 2 and jams it on the segment 5 of the insertion channel 2 in the form of a segment of a circle.
  • a device known per se such as a worm gear
  • Fig. 3 shows a schematic representation of an end view of the clamping spindle shown in Fig. 2. This view is shown in a highly schematic manner, in particular to show the flattening of the support section 30.
  • the support section 30 is flattened from a reference point 31, at which the circumferential circle of the support section 30 and the circumferential circle of the spindle body 26 touch, from both directions over a range of 90 ° in each case.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP91101248A 1990-02-17 1991-01-31 Vorrichtung zum Aufspannen einer biegsamen Druckform auf einen Zylinder einer Rotationsdruckmaschine Expired - Lifetime EP0443350B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005093A DE4005093C1 (en) 1990-02-17 1990-02-17 Forme clamp for printing cylinder - has channel in cylinder with spindle to clamp form eccentrically
DE4005093 1990-02-17

Publications (2)

Publication Number Publication Date
EP0443350A1 EP0443350A1 (de) 1991-08-28
EP0443350B1 true EP0443350B1 (de) 1994-12-21

Family

ID=6400437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101248A Expired - Lifetime EP0443350B1 (de) 1990-02-17 1991-01-31 Vorrichtung zum Aufspannen einer biegsamen Druckform auf einen Zylinder einer Rotationsdruckmaschine

Country Status (5)

Country Link
US (1) US5062363A (ja)
EP (1) EP0443350B1 (ja)
JP (1) JP3001995B2 (ja)
CA (1) CA2034427C (ja)
DE (2) DE4005093C1 (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234332A1 (de) * 1992-10-12 1994-04-14 Heidelberger Druckmasch Ag Aufspannvorrichtung zum Befestigen einer biegsamen Druckform auf der Mantelfläche eines Zylinders
DE4238343C2 (de) * 1992-11-13 2003-03-27 Kocher & Beck Gmbh & Co Rotati Spannvorrichtung für ein Klischee
DE4401201C2 (de) * 1994-01-18 1996-08-01 Koenig & Bauer Albert Ag Einrichtung zum Festhalten eines bogenförmigen Trägers
US5485784A (en) * 1994-06-28 1996-01-23 Walschlaeger, Sr.; Alan R. Printing plate cylinder with universal lockup apparatus
DE19509561C2 (de) * 1995-03-16 1997-10-23 Koenig & Bauer Albert Ag Vorrichtung zum Klemmen von Platten auf einem Zylinder
IT1282385B1 (it) * 1995-05-05 1998-03-20 Koenig & Bauer Albert Ag Dispositivo per fissaggio di una unita' di tessuto gommato su un cilindro di una macchina da stampa rotativa
DE19521645C2 (de) * 1995-06-14 1998-07-09 Koenig & Bauer Albert Ag Einrichtung für eine schlitzförmige Haltevorrichtung
DE19524296C2 (de) * 1995-07-06 1997-05-15 Koenig & Bauer Albert Ag Zylinder
FR2737149B1 (fr) * 1995-07-25 1997-10-17 Heidelberg Harris Sa Dispositif de fixation d'une plaque d'impression sur un cylindre porte-plaque
DE19533178C2 (de) * 1995-09-08 1997-06-26 Koenig & Bauer Albert Ag Zylinder
DE29600845U1 (de) * 1996-01-19 1996-03-07 MAN Roland Druckmaschinen AG, 63075 Offenbach Vorrichtung zum Befestigen einer Bespannung auf einem Druckwerkzylinder
DE19606744C2 (de) * 1996-02-23 1998-12-10 Roland Man Druckmasch Vorrichtung zum Befestigen einer biegsamen Druckplatte
US5735211A (en) * 1996-06-13 1998-04-07 Mark Andy, Inc. Clamping and tensioning device for printing plates
US5749298A (en) * 1997-06-10 1998-05-12 Reeves Brothers, Inc. Arrangement for securing a printing blanket to a cylinder
US6131513A (en) * 1998-10-23 2000-10-17 Heidelberger Druckmaschinen Ag Printing press with simple lock-up plate cylinder
US6378430B1 (en) 1999-10-15 2002-04-30 King Press Corporation Cylinder with plate gripping device
DE10024331B4 (de) * 2000-05-17 2005-08-18 Koenig & Bauer Ag Vorrichtung zum Klemmen und/oder Spannen
US6739961B2 (en) * 2001-08-02 2004-05-25 Donald E. Haney Abrasive band tightening apparatus
TWM260360U (en) * 2004-08-02 2005-04-01 Ruei-Sen Liau Tightening device for winding emery belt of spindle
JP4653981B2 (ja) * 2004-08-10 2011-03-16 三菱重工印刷紙工機械株式会社 印刷機のブランケット胴
EP2609026B1 (en) * 2010-08-25 2018-08-01 Hewlett-Packard Development Company, L.P. Substrate support
JP6324076B2 (ja) * 2014-01-10 2018-05-16 三菱重工機械システム株式会社 ブランケット締め付け装置、ブランケット胴、印刷機
US20220168868A1 (en) * 2020-12-01 2022-06-02 Fortune Extendables Corp. Abrasive wheel which can be provided with a sandpaper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276365A (en) * 1964-04-25 1966-10-04 Roland Offsetmaschf Printing plate clamping device for a printing press

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279204A (en) * 1940-12-13 1942-04-07 Meisel Press Mfg Company Printing cylinder
DE1196213B (de) * 1959-11-12 1965-07-08 American Type Founders Co Inc Biegsame Druckplatte zum Aufspannen auf den Plattenzylinder einer Rotationsdruckmaschine und Biegevorrichtung zur Herstellung dieser Druckplatte
US3234694A (en) * 1963-11-06 1966-02-15 John F Vosburg Abrasive strip holding and tightening mechanism
DE1561005A1 (de) * 1966-10-01 1970-04-16 Maschf Augsburg Nuernberg Ag Vorrichtung zum Spannen von biegsamen Druckplatten auf dem Formzylinder von Rotationsdruckmaschinen
FR2478538A1 (fr) * 1980-03-21 1981-09-25 Creusot Loire Dispositif pour corriger la position d'une plaque portee par un cylindre d'une machine d'impression
US4495865A (en) * 1983-03-15 1985-01-29 Komori Printing Machinery Co., Ltd. Plate clamping device of web-fed rotary printing press
DE3326215C2 (de) * 1983-07-21 1986-04-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Aufspannen einer Druckplatte oder eines Gummituches
DE3339185C2 (de) * 1983-10-28 1986-01-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine
EP0330736B2 (en) * 1988-02-29 2000-01-19 Goss Graphic Systems, Inc. Tensionless plate lock-up

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276365A (en) * 1964-04-25 1966-10-04 Roland Offsetmaschf Printing plate clamping device for a printing press

Also Published As

Publication number Publication date
JP3001995B2 (ja) 2000-01-24
JPH058375A (ja) 1993-01-19
EP0443350A1 (de) 1991-08-28
CA2034427A1 (en) 1993-08-17
DE59103943D1 (de) 1995-02-02
US5062363A (en) 1991-11-05
DE4005093C1 (en) 1991-06-20
CA2034427C (en) 1993-08-17

Similar Documents

Publication Publication Date Title
EP0443350B1 (de) Vorrichtung zum Aufspannen einer biegsamen Druckform auf einen Zylinder einer Rotationsdruckmaschine
EP0161631A2 (de) Entgrannerplatteneinrichtung
DE3009716C2 (de) Sicherungselement für eine auf einem Gewindebolzen aufsetzbare Schraubenmutter
CH690426A5 (de) Vorrichtung zum Klemmen von Platten auf einem Zylinder.
DE60108025T2 (de) Wickelhülsezentrierbüchse für eine Rolle Bandmaterial
EP0451574B1 (de) Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine
EP1278634A2 (de) Verfahren und vorrichtungen zum befestigen einer biegsamen platte
DE19541249B4 (de) Gummizylinder mit einer Gummitucheinheit und mit einer Vorrichtung zum Befestigen der Gummitucheinheit
DE19757895C2 (de) Seitenregister-Einstellvorrichtung für Druckplatten
DE3884939T3 (de) Spannungsloser Plattenverschluss.
DE3812137A1 (de) Vorrichtung zum befestigen einer biegsamen druckplatte
DE10241284B3 (de) Klemmvorrichtung für eine Druckplatte
DD290627A5 (de) Vorrichtung zum befestigen einer biegsamen druckplatte
DE4300099C1 (de) Klemmeinrichtung mit parallelen Klemmflächen
DE60027518T2 (de) Vorrichtung zum Aufspannen eines Gummituchs einer Druckmaschine
DE20022737U1 (de) Vorrichtung zum Befestigen eines Aufzuges auf einem Zylinder
DE69104764T2 (de) Gerät und Verfahren zum Montieren einer Druckplatte auf einen engspaltigen Zylinder.
DE3339185C2 (de) Vorrichtung zum Spannen von Platten auf einen Formzylinder einer Rotationsdruckmaschine
DE2518060C2 (de) Sägezahndraht für eine Vorreißerwalze für Offenend-Spinnmaschinen
DD261764A1 (de) Vorrichtung zum befestigen einer biegsamen druckplatte
DE1489325B1 (de) Lampenfassung fuer eine Leuchtstoffroehre
DE19509562C1 (de) Vorrichtung zum Lösen von Platten von einem Zylinder
DD261765A1 (de) Vorrichtung zum befestigen einer biegsamen druckplatte
DD261768A1 (de) Vorrichtung zum befestigen einer biegsamen druckplatte
DE9200952U1 (de) Supportverbindungen zwischen zwei Walzen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19910801

17Q First examination report despatched

Effective date: 19930726

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 59103943

Country of ref document: DE

Date of ref document: 19950202

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950315

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19991213

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991217

Year of fee payment: 10

Ref country code: CH

Payment date: 19991217

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19991221

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050131