EP0563601A1 - Dispositif pour serrer et tendre une plaque d'impression dans une machine à imprimer - Google Patents

Dispositif pour serrer et tendre une plaque d'impression dans une machine à imprimer Download PDF

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Publication number
EP0563601A1
EP0563601A1 EP93103370A EP93103370A EP0563601A1 EP 0563601 A1 EP0563601 A1 EP 0563601A1 EP 93103370 A EP93103370 A EP 93103370A EP 93103370 A EP93103370 A EP 93103370A EP 0563601 A1 EP0563601 A1 EP 0563601A1
Authority
EP
European Patent Office
Prior art keywords
clamping
plate cylinder
channel
tensioning device
radially
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
EP93103370A
Other languages
German (de)
English (en)
Other versions
EP0563601B1 (fr
Inventor
Peter-Theobald Blaser
Karl-Hermann Miltner
Anton Rodi
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 EP0563601A1 publication Critical patent/EP0563601A1/fr
Application granted granted Critical
Publication of EP0563601B1 publication Critical patent/EP0563601B1/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
    • B41F27/1218—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
    • B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever

Definitions

  • the invention relates to a clamping and tensioning device for the inwardly angled trailing edge of a flexible printing plate in an axial channel on the circumference of a plate cylinder of a printing press according to the preamble of claim 1.
  • the clamping bar at the rear in the clamping direction is supported in the channel as a double lever acting radially to the cylinder axis and can be pivoted by a pneumatic actuating element in the plate cylinder against the action of a spring loading the clamping end in the clamping direction of the pressure plate clamped on the circumference of the plate cylinder, around the tension and to release the clamping of the angled rear edge of the pressure plate in the clamping slot between the two clamping surfaces of the clamping strips.
  • the always defined clamping force and the likewise defined clamping force by the springs, which are supported on the other hand against the body of the plate cylinder, are advantageous.
  • the object of the invention is to provide a clamping and tensioning device according to the preamble of claim 1 in such a way that, even when the pressure plate is changed automatically, no additional device is required for inserting the fold at the rear plate end into the clamping slot of the tensioning device.
  • Such a design allows the clamping strips of the clamping device to be moved radially out of the axial channel of the plate cylinder at least to such an extent that the radially outer boundary surfaces of the clamping strips lie outside the cross-sectional contour of the plate cylinder.
  • the folding of the bend at the rear end of the printing plate into the clamping slot, the radially outer area of which is then approximately in the cross-sectional contour of the plate cylinder or advantageously somewhat outside of this cross-sectional contour, is then carried out by a rotary movement of the blanket cylinder, so that the blanket cylinder bends into the clamping slot pushes in.
  • the clamping and tensioning device is then retracted with the clamped bend of the pressure plate radially inward towards the axis of the plate cylinder into a stable stop position in which the peripheral rear edge of the pressure plate lies within the cross-sectional contour of the plate cylinder.
  • the axially extending channel of the rubber blanket cylinder must be correspondingly narrow in order to achieve a sufficient offset with respect to the axial channel of the plate cylinder.
  • a training with features of claim 3 enables the advantages explained for the arrangement according to DE-P 41 28 994 to be retained.
  • the blanket cylinder 1 and the plate cylinder 2 of an offset sheet-fed rotary printing press are shown in the drawing figures.
  • the blanket cylinder 1 has an axially extending channel 3 on the circumference and is covered with the blanket 23.
  • the plate cylinder 2 is provided with an also axially extending, open at the circumference channel 4.
  • a clamping device for a pressure plate 5 that can be clamped onto the circumference of the plate cylinder 2, the front edge of which is fixed at another point on the circumference of the plate cylinder 2 and the rear edge of which with a radially inward bend 6 into a clamping slot 7 of the clamping and clamping device engages in which the rear end of the pressure plate 5 is held and by which the pressure plate is clamped on the circumference of the plate cylinder.
  • This clamping device consists of two clamping strips 8 and 9, on the outer ends of which cross-sectional ends are formed which enclose the clamping slot 7.
  • Both terminal strips 8 and 9 are arranged in a frame 10 which is guided in the channel 4 of the plate cylinder 2 between stable stop positions approximately radially movable, so that the two terminal strips 8 and 9 with the clamping slot 7 at least partially out of the cross-sectional contour of the plate cylinder 2 and are retractable so far radially inwards that the peripheral rear edge of the pressure plate 5 lies within the cross-sectional contour of the plate cylinder.
  • the rear in the tensioning direction of the pressure plate 5, that is to say in the drawing the left clamping strip 8 is supported in cross section as a double lever by means of a shaft 11, shaft extensions or the like in a crowned groove of the frame 10.
  • the inner end of this double lever is held by a prestressed spring 12 in the direction of the tension of the pressure plate 5 on the circumference of the plate cylinder 2 permanently charged.
  • an advantageously pneumatically actuated adjusting unit 20 is effective, which, when actuated, pivots the double lever against the spring 12 in order to release the tension of the pressure plate on the plate cylinder 2 and at the same time the clamping device.
  • the other terminal block 9 also has a spherical projection 13 approximately in the cross section, which is supported radially outside the axis of the shaft 11 in a ball socket against the terminal block 8.
  • this clamping bar 9 engages with a projection 14 in a recess 15 in the frame 10, whereby the clamping bar 9 is held in its drawn position on the one hand, but on the other hand is sufficiently movable for tensioning and releasing the tensioning and clamping device.
  • a frame 10 of approximately U-shaped design with a bottom land surface 24, a flat outer land surface 25 on one outside and flat partial area surfaces 26 and 27 on the other outside of the legs is advantageous. This enables the frame 10 to be guided in the guide surfaces 28 of the channel 4 of the plate cylinder 2 by means of linear roller bearings 16 in order to achieve smooth and play-free mobility of the frame.
  • the trough-shaped, cross-sectionally U-shaped frame 10 can be inserted axially into the channel 4 from one end face and engages under approximately parallel counter surfaces 29 in the channel 4 of the plate cylinder with supporting surfaces 17 running approximately tangentially. Between these support surfaces 17 and the body of the plate cylinder 4 springs 18 and 19 are biased on both sides of the channel, which permanently load the frame 10 in the direction of the axis of the plate cylinder 2.
  • Adjustment units 21 and 22 which are acted upon pneumatically, are advantageously arranged under the frame 10 and, in the unloaded state, enable radially inward directed force transmission. This positive force transmission takes place in the circumferential direction through the roller bearing body 16.
  • the force of the springs 18 and 19 is overcome, so that the frame 10 with the clamping strips 8 and 9 to the outside and the clamping slot 7 are at least partially moved out of the area of the cross-sectional contour of the plate cylinder 2.
  • Actuation of the adjusting unit 20, which is effective against the inner end of the clamping strip 8, overcomes the spring force 12, so that the clamping strip 8 pivots about the shaft 11 and the clamping slot 7 is opened.
  • the printing plate 5 can be pressed into the clamping slot 7 by rotating the rubber blanket cylinder 1 and the plate cylinder 2 against the circumference of the plate cylinder 2 and at the same time the rear edge 6 of the printing plate.
  • This bend is clamped when the adjustment unit 20 is relieved.
  • the springs 18 and 19 press the frame 10 with the clamping strips 8 and 9 radially inward into a stable stop position, in which the peripheral rear edge of the pressure plate 5 is inside the cross-sectional contour of the plate cylinder 2 lies. No other tools are required. In particular, no special device for pressing in the rear fold 6 of the pressure plate 5 is required. It is only necessary to ensure that the blanket cylinder 1 reaches the rear edge 6 of the printing plate 5 with its circumference. This can be achieved by a correspondingly narrow channel in the blanket cylinder 1 or, if appropriate, by a temporary rotation of the blanket cylinder 1 relative to the plate cylinder 2 during the actuation of the clamping device, as is shown schematically in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP93103370A 1992-03-30 1993-03-03 Dispositif pour serrer et tendre une plaque d'impression dans une machine à imprimer Expired - Lifetime EP0563601B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4210316A DE4210316C2 (de) 1992-03-30 1992-03-30 Klemm- und Spannvorrichtung für eine Druckplatte in einer Druckmaschine
DE4210316 1992-03-30

Publications (2)

Publication Number Publication Date
EP0563601A1 true EP0563601A1 (fr) 1993-10-06
EP0563601B1 EP0563601B1 (fr) 1996-03-20

Family

ID=6455377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103370A Expired - Lifetime EP0563601B1 (fr) 1992-03-30 1993-03-03 Dispositif pour serrer et tendre une plaque d'impression dans une machine à imprimer

Country Status (5)

Country Link
US (1) US5359933A (fr)
EP (1) EP0563601B1 (fr)
JP (1) JPH06126936A (fr)
CN (1) CN1077418A (fr)
DE (1) DE4210316C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275446A (en) * 1993-02-27 1994-08-31 Heidelberger Druckmasch Ag The execution of worksteps in a cylinder of a printing press
EP0788881B1 (fr) * 1996-01-22 2001-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de serrage et de traction pour les manchons des cylindres dans les machines d'impression
WO2005110752A2 (fr) * 2004-05-10 2005-11-24 Maschinenfabrik Wifag Dispositif de serrage

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326251C2 (de) * 1993-08-05 1997-08-28 Koenig & Bauer Albert Ag Gummi-/Drucktuchzylinder
FR2709091B1 (fr) * 1993-08-20 1995-11-10 Heidelberg Harris Sa Dispositif à lame interchangeable pour maintenir une plaque d'impression sur un cylindre porte-plaque dans une imprimante rotative, et outil de démontage de la lame.
US5413042A (en) * 1994-02-22 1995-05-09 Heidelberg Druckmaschinen Ag Lock-up assembly for securing a printing plate on a plate cylinder
US5516096A (en) * 1994-05-10 1996-05-14 Polaroid Corporation Method and apparatus for securing a flexible sheet to a rotatable supporting surface
JPH08183166A (ja) * 1994-12-28 1996-07-16 Riso Kagaku Corp 輪転式孔版印刷機の印刷用紙始端装着装置
FR2735418B1 (fr) * 1995-06-19 1997-08-22 Heidelberg Harris Sa Dispositif d'echange de plaques de groupes d'impression de machines a imprimer
US5553545A (en) * 1995-09-26 1996-09-10 Heath Custom Press, Inc. Plate clamping and tensioning apparatus for rotary printing press
CN1097512C (zh) * 1996-05-30 2003-01-01 北人印刷机械股份有限公司 一种印版的压紧和张紧装置
DE19701955C2 (de) * 1997-01-22 1998-12-03 Roland Man Druckmasch Befestigungsvorrichtung für Druckformen
DE10056167A1 (de) * 1999-11-15 2001-05-17 Heidelberger Druckmasch Ag Fluidbeaufschlagte Spannvorrichtung für Druckformen an Rotationsdruckmaschinen
DE50015753D1 (de) * 1999-12-02 2009-11-12 Koenig & Bauer Ag Druckwerke einer Rotationsdruckmaschine
WO2002030678A2 (fr) 2000-10-12 2002-04-18 Creo Srl Procede de reduction d"artefacts d"impression non desires
DE10058996C1 (de) * 2000-11-28 2002-06-13 Koenig & Bauer Ag Vorrichtung zur Befestigung eines Aufzuges
DE10307383B4 (de) * 2002-12-16 2010-02-18 Koenig & Bauer Aktiengesellschaft Verfahren zur Herstellung einer Drucktucheinheit
DE102004008723A1 (de) * 2004-02-23 2005-09-15 Man Roland Druckmaschinen Ag Druckwerkzylinder mit einem Spannkanal
DE102005002684A1 (de) * 2005-01-20 2006-08-03 Man Roland Druckmaschinen Ag Plattenzylinder mit einer Vorrichtung zur Festlegung von umfangseitig anbringbaren Druckplatten
DE102008047191A1 (de) * 2007-10-01 2009-04-02 Heidelberger Druckmaschinen Ag Vorrichtung zum Befestigen einer Druckplatte auf einem Plattenzylinder einer Druckmaschine
DE102008060557B4 (de) 2008-12-04 2018-11-22 Heidelberger Druckmaschinen Ag Verfahren zum Aufbringen eines Aufzugsblechs auf einen Druckzylinder einer Offsetdruckmaschine
DE102008062016A1 (de) 2008-12-12 2010-06-17 Heidelberger Druckmaschinen Ag Verfahren zum Befestigen eines biegsamen Aufzuges auf einer um eine Rotationsachse drehbar gelagerten Übertragungstrommel und Vorrichtungen zur Durchführung des Verfahrens
CN102161256A (zh) * 2010-12-22 2011-08-24 江苏闳业机械有限公司 花辊夹持装置
CA2839394C (fr) * 2011-06-30 2016-01-05 Koenig & Bauer Aktiengesellschaft Procede de montage et d'alignement d'une plaque d'impression sur un cylindre porte-plaque d'une presse d'impression offset multicolore
DE102013218657A1 (de) * 2013-09-18 2015-03-19 Koenig & Bauer Aktiengesellschaft Verfahren zum Recken eines auf einen Zylinder einer Rotationsdruckmaschine aufgespannten Zylinderaufzuges
DE102016201236A1 (de) * 2015-02-24 2016-08-25 Heidelberger Druckmaschinen Ag Druckmaschinenzylinder
DE102016125012A1 (de) * 2015-12-31 2017-07-06 manroland sheetfed GmbH Druckplattenspannschiene
CN106183387A (zh) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 印铁机
CN106183371A (zh) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 印铁机用印版滚筒
CN106183386A (zh) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 印铁机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411731A2 (fr) * 1989-08-04 1991-02-06 Komori Corporation Dispositif pour attacher un cliché dans une machine rotative
EP0493772A1 (fr) * 1990-12-31 1992-07-08 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de serrage et dispositif tendeur

Family Cites Families (13)

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US3012841A (en) * 1956-01-13 1961-12-12 Fairchild Camera Instr Co Sheet cylinder for image reproducing machines
US3715981A (en) * 1970-06-29 1973-02-13 Hamilton Tool Co Fluid actuator and lock for printing plate cylinders
US4191106A (en) * 1975-12-01 1980-03-04 K and Manufacturing Company, Inc. Printing plate clamping assembly
DE3116506C2 (de) * 1981-04-25 1984-05-17 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Befestigen einer Druckplatte auf dem Formzylinder einer Rotationsdruckmaschine
DE3626243A1 (de) * 1986-08-02 1988-02-04 Koenig & Bauer Ag Druckplattenbefestigungs- und spannvorrichtung
JP2726661B2 (ja) * 1986-09-18 1998-03-11 三菱重工業株式会社 枚葉印刷機の版尻挿入装置
DE3702032A1 (de) * 1987-01-24 1988-08-04 Basf Ag Vorrichtung zum spannen von druckplatten
US4890555A (en) * 1987-06-03 1990-01-02 Motter Printing Press Co. Printing press plate lockup
DE3731039A1 (de) * 1987-09-16 1989-03-30 Koenig & Bauer Ag Einrichtung zum klemmen biegsamer druckplatten auf dem plattenzylinder einer rotationsdruckmaschine
DE3731684A1 (de) * 1987-09-21 1989-04-06 Koenig & Bauer Ag Aufspannvorrichtung
DE3925732C1 (fr) * 1989-08-03 1991-01-17 Holmer, Alfons, 8306 Schierling, De
DE4129831C3 (de) * 1990-12-21 1998-08-13 Heidelberger Druckmasch Ag Schnellklemmvorrichtung
ES2080879T3 (es) * 1990-12-21 1996-02-16 Heidelberger Druckmasch Ag Dispositivo de sujecion rapida.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411731A2 (fr) * 1989-08-04 1991-02-06 Komori Corporation Dispositif pour attacher un cliché dans une machine rotative
EP0493772A1 (fr) * 1990-12-31 1992-07-08 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de serrage et dispositif tendeur

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275446A (en) * 1993-02-27 1994-08-31 Heidelberger Druckmasch Ag The execution of worksteps in a cylinder of a printing press
FR2701892A1 (fr) * 1993-02-27 1994-09-02 Heidelberger Druckmasch Ag Procédé et dispositif d'exécution d'étapes de travail dans un cylindre d'une machine à imprimer.
US5440989A (en) * 1993-02-27 1995-08-15 Heidelberger Druckmaschinen Ag Method and device for performing worksteps on a cylinder of a printing press
GB2275446B (en) * 1993-02-27 1996-04-10 Heidelberger Druckmasch Ag Process and device for the execution of worksteps in a cylinder of a printing press
EP0788881B1 (fr) * 1996-01-22 2001-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de serrage et de traction pour les manchons des cylindres dans les machines d'impression
WO2005110752A2 (fr) * 2004-05-10 2005-11-24 Maschinenfabrik Wifag Dispositif de serrage
WO2005110752A3 (fr) * 2004-05-10 2006-06-08 Wifag Maschf Dispositif de serrage

Also Published As

Publication number Publication date
DE4210316A1 (de) 1993-10-07
DE4210316C2 (de) 1994-02-24
EP0563601B1 (fr) 1996-03-20
US5359933A (en) 1994-11-01
CN1077418A (zh) 1993-10-20
JPH06126936A (ja) 1994-05-10

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