EP1295720B1 - Cylindre porte-plaque pour une machine à imprimer - Google Patents

Cylindre porte-plaque pour une machine à imprimer Download PDF

Info

Publication number
EP1295720B1
EP1295720B1 EP02019599A EP02019599A EP1295720B1 EP 1295720 B1 EP1295720 B1 EP 1295720B1 EP 02019599 A EP02019599 A EP 02019599A EP 02019599 A EP02019599 A EP 02019599A EP 1295720 B1 EP1295720 B1 EP 1295720B1
Authority
EP
European Patent Office
Prior art keywords
clamping device
shaft
lever
rear clamping
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
EP02019599A
Other languages
German (de)
English (en)
Other versions
EP1295720A1 (fr
Inventor
Helmut Schild
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 EP1295720A1 publication Critical patent/EP1295720A1/fr
Application granted granted Critical
Publication of EP1295720B1 publication Critical patent/EP1295720B1/fr
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
    • B41F27/1243—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 forme cylinder for a printing press according to the preamble of claim 1.
  • the printing plates are mounted on a plate cylinder and thereby secured to a respectively the leading and the trailing end of the printing plate associated clamping device.
  • the clamping of the printing forme around the outer circumference of the forme cylinder takes place from the end of printing by exerting a tensile force.
  • the actuation of the clamping devices of the forme cylinder takes place automatically in the case of automated printing form changers.
  • the front and the rear clamping device is assigned in each case an actuating element, by which a printing forme can be clamped or released and tensioned from the end of the printing.
  • Such a device is shown, for example, by EP 0 458 323 A1.
  • both the clamping and clamping takes place via the rear clamping device by means of eccentric or cam arranged on two shafts.
  • the clamping or releasing the leading edge of the printing form via the cams of the front clamping device associated shaft - the clamping and clamping on the rear clamping device also takes place via a shaft.
  • a form cylinder for a printing machine in which the clamping of the leading edge of the printing form and the clamping and tensioning of the trailing, beveled end of a printing form via an actuator.
  • This pressurizing acted upon actuating device acts on the front and rear clamping device associated spring elements, which are matched in their spring force to the corresponding pressures with which the actuator is to act.
  • pressurization of the actuator causes clamping of the leading end of the printing form up to a first pressure value.
  • increasing the pressure above a predetermined value then takes place the detection of the folded rear end of the printing form and the clamping of the printing plate on the pivotable clamping device.
  • the spring elements associated with the individual clamping devices can be adapted exactly to pressure conditions with which the actuating element is to be controlled. If these pressure ratios are not maintained exactly - which can occur, for example, by a brief pressure loss - malfunctions can be triggered during the course of a printing plate change. This may then require time-consuming manual intervention.
  • a disadvantage of several to be arranged in a cylinder actuators (motors) for clamping and clamping of printing plates is the space required for this. Especially with small cylinders or cylinders of small format printing presses the space available is relatively scarce - further weaknesses corresponding cavities in the cylinder body, the structure and the rigidity of the cylinder.
  • Object of the present invention is therefore to develop a cylinder for a printing press according to the preamble of claim 1 such that, while avoiding the disadvantages mentioned above, a structurally simple and a safe process enabling device is created.
  • the actuating element cooperates in a first movement phase with the front clamping device and in a further movement phase with the rear clamping device.
  • the articulation of the adjusting element to the front or rear clamping device is such that the force applied by the actuator force acts exclusively on the front and the rear clamping device.
  • the front and rear clamping device is actuated in each case via a shaft together with eccentric or cam attached thereto.
  • the rear clamping device is pivotally mounted about the axis of this associated shaft.
  • a radially movable lower part for clamping or releasing the printing form edge can be actuated.
  • the inventively provided actuator now acts via a rotatably mounted with respect to the front shaft two-armed lever, one arm acts as a driver with two attached to the shaft or the eccentric attacks.
  • a coupling this two-armed and directly driven by the actuator lever is connected to a mounted on the eccentric shaft of the rear clamping device lever, wherein via a further lever, the pivoting of the rear clamping device.
  • Figures 1-7 show the invention acting on the front and the rear clamping device actuator.
  • a front clamping device 3 for securing a leading end of a printing form 2 and a rear clamping device 3, 4, 5, 6 for securing the trailing end of a printing form 2 are provided in the form of a respective rail (FIG. 1).
  • the front clamping device consists of a cylinder-fixed upper part 4 and a radially movable lower part 3.
  • the rear clamping device is pivotally mounted about the axis of a shaft 9, the function of which is further explained below standing exactly.
  • the pivotable upper part 5 acts to receive the end a printing form 2 with a radially movable lower part 6 together.
  • a shaft 7 is rotatably mounted below this clamping device 3, 4, which has an eccentric 8.
  • This eccentric 8 cooperates with the underside of the lower part 3 for opening and closing the end of the printing form 2 receiving detection area between the lower part 3 and upper part 4 together.
  • a shaft 9 is rotatably mounted, which also has an eccentric 10. As already mentioned above, the rear clamping device 5, 6 is rotatably mounted about the axis of the shaft 9.
  • a working cylinder 11 is shown in principle as an actuating element 11, which is considered to be effective when pressure medium is applied.
  • Whose piston rod acts via a hinge on a lever 15 of a total two-armed lever 14, 15 which is rotatably mounted about the axis of the shaft 7.
  • the lever 14 of this two-armed lever 14, 15 as ternary member are two stops 12, 13 associated with the eccentric 8, so that the lever 14 in a corresponding rotational movement in the counterclockwise direction ( Figure 1) entrains the eccentric 8.
  • Figure 1 In a rotation of the lever 14 in a clockwise direction is rotated in this only to the free travel to the abutment against the stop 12, only then the eccentric 8 is taken in this direction.
  • the lower part 3 is pressed into the corresponding surface of the upper part 4, that is, the detection area which receives the edge of the printing form 2 is closed.
  • Fig. 1 shows the forme cylinder 1 with a through the front and the rear fastening means 3, 4; 5, 6 tensioned printing form 2.
  • 6 is now pivoted by driving the actuating element 11 of the two-armed lever 14, 15 so that the lever arm 14 abuts against the stop 12 of the eccentric 8.
  • 6 was pivoted such that the upper and lower part 5, 6 located detection area for the printing form 2 was opened.
  • the actuating element 11 is now controlled such that the two-armed lever 14, 15 by abutment of the lever 14 on the stop 13, the eccentric 8 corresponding rotated (Fig. 4).
  • the lower part 3 of the front clamping device 3, 4 thus moves down into the open position.
  • this pivotal movement is transmitted to the two-armed lever 17, 18 of the rear clamping device 5, 6, but this causes only a pivoting movement of the shaft 9 of the eccentric 10.
  • the rear clamping device 5, 6 is not shown by stop means already in the fully pivoted-back position (middle cylinder channel) and can not follow the movement of the two-armed lever 17, 18.
  • the lower part 3 is in the lower position, ie a printing forme 2 can be introduced into the opened detection area (FIG. 5).
  • the two-armed lever 14, 15 can be pivoted again in the clockwise direction until the lever 14 bears against the stop 12.
  • the Angular position of the eccentric 8 and thus the position of the lower part 3 of the front clamping device 3, 4 remains unchanged.
  • this movement has been transmitted only in a corresponding pivoting movement of the rear clamping device 5, 6 associated eccentric 10.
  • the two-armed lever 14, 15 can again be pivoted counterclockwise by corresponding actuation of the actuating element 11 until the lever 14 abuts the stop 13 of the eccentric 8 (Fig. 7).
  • this movement was in a pivotal movement of the two-armed lever 17, 18 of the shaft 9 of the rear clamping device 5, 6 transmitted, now by clamping the lever 17, the clamping device 5, 6 is pivoted back into the channel center and the trailing end of a printing plate 2 in the open detection area between the lower part 6 and upper part 5 can be listed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (8)

  1. Cylindre porte-plaque pour une machine à imprimer, notamment dans des groupes d'impression ou de vernissage d'une machine d'impression offset à feuilles, comprenant un dispositif de serrage avant pour recevoir l'extrémité avant d'une plaque d'impression et un dispositif de serrage arrière pour recevoir l'extrémité arrière de la plaque d'impression ainsi qu'un actionneur pour actionner les dispositifs de serrage avant et arrière ainsi que pour serrer la plaque d'impression,
    caractérisé en ce que
    l'actionneur (11) permet d'actionner dans une première phase de déplacement exclusivement le dispositif de serrage arrière (5, 6) et dans une deuxième phase de déplacement le dispositif de serrage avant (3, 4).
  2. Cylindre porte-plaque selon la revendication 1,
    caractérisé en ce que
    l'on associe au dispositif de serrage avant (3, 4) un excentrique (8) pouvant être actionné par le biais d'un arbre (7).
  3. Cylindre porte-plaque selon la revendication 1 ou 2,
    caractérisé en ce que
    l'on associe au dispositif de serrage arrière (5, 6) un excentrique (10) pouvant être actionné par un arbre (9).
  4. Cylindre porte-plaque selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de serrage arrière (5, 6) est monté de manière à pouvoir pivoter autour d'un axe s'étendant parallèlement à l'axe du cylindre porte-plaque (1).
  5. Cylindre porte-plaque selon la revendication 4,
    caractérisé en ce que
    le dispositif de serrage arrière (5, 6) est monté de manière à pouvoir pivoter autour de l'axe de l'arbre (9).
  6. Cylindre porte-plaque selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'
    un levier à deux bras (14, 15) est monté de manière à pouvoir tourner autour de l'axe de l'arbre (7), deux butées (12, 13) sur l'excentrique (8) lui étant associées.
  7. Cylindre porte-plaque selon les revendications 2, 3 et 6,
    caractérisé en ce que
    l'on associe à l'arbre (9) du dispositif de serrage arrière (5, 6) un levier (18) qui est accouplé par le biais d'une bielle (16) à un levier (14) de l'arbre (7) du dispositif de serrage avant (3, 4).
  8. Cylindre porte-plaque selon la revendication 7,
    caractérisé en ce que
    le dispositif de serrage arrière (5, 6) pouvant pivoter à l'encontre de la force de ressort peut être actionné par le biais d'un deuxième levier (17) monté sur l'arbre (9), en tant qu'élément d'entraînement.
EP02019599A 2001-09-20 2002-09-03 Cylindre porte-plaque pour une machine à imprimer Expired - Lifetime EP1295720B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146345A DE10146345B4 (de) 2001-09-20 2001-09-20 Klemm- und Spannvorrichtung für eine Druckmaschine
DE10146345 2001-09-20

Publications (2)

Publication Number Publication Date
EP1295720A1 EP1295720A1 (fr) 2003-03-26
EP1295720B1 true EP1295720B1 (fr) 2006-07-05

Family

ID=7699662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019599A Expired - Lifetime EP1295720B1 (fr) 2001-09-20 2002-09-03 Cylindre porte-plaque pour une machine à imprimer

Country Status (3)

Country Link
EP (1) EP1295720B1 (fr)
AT (1) ATE332234T1 (fr)
DE (2) DE10146345B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052823A1 (de) * 2004-11-02 2006-05-04 Koenig & Bauer Ag Vorrichtung zum Klemmen und Spannen des nachlaufenden Endes einer Druckplatte
DE102020209465B3 (de) * 2020-07-28 2021-07-15 Heidelberger Druckmaschinen Aktiengesellschaft Druckplatten-Greifsystem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359899A (en) * 1965-02-01 1967-12-26 Cottrell Company Spring tensioned wrap-around plate cylinder clamping arrangement
JPS5766970A (en) * 1980-10-15 1982-04-23 Mitsubishi Heavy Ind Ltd Tightener for plate
JP2509511Y2 (ja) * 1990-05-25 1996-09-04 株式会社小森コーポレーション 印刷機の版万力装置
DE4306139C2 (de) * 1993-02-27 1996-10-10 Heidelberger Druckmasch Ag Vorrichtung zur Durchführung von Arbeitsschritten in einem Zylinder einer Druckmaschine
DE29807377U1 (de) * 1998-04-23 1998-07-16 MAN Roland Druckmaschinen AG, 63075 Offenbach Befestigungsvorrichtung für Platten auf Druckmaschinenzylindern

Also Published As

Publication number Publication date
EP1295720A1 (fr) 2003-03-26
ATE332234T1 (de) 2006-07-15
DE10146345B4 (de) 2006-07-06
DE50207428D1 (de) 2006-08-17
DE10146345A1 (de) 2003-04-24

Similar Documents

Publication Publication Date Title
DE3940796C2 (fr)
EP0453845B1 (fr) Machine à imprimer des feuilles en offset avec au moins un bloc d'impression
DE8319431U1 (de) Vorrichtung zur umstellung auf wahlweisen schoendruck oder schoen- und widerdruck einer zwischen den einzelnen druckwerken einer bogenrotationsdruckmaschine angeordneten wendeeinrichtung
EP0736384B1 (fr) Dispositif pour enclencher ou déclencher l'impression et procédé de contrÔle de ce dispositif
EP0579002B1 (fr) Procédé et dispositif pour la mise en/hors service du dispositif de retournement des feuilles lors de l'alimentation en feuilles dans une machine à imprimer
EP1295720B1 (fr) Cylindre porte-plaque pour une machine à imprimer
EP0664213B1 (fr) Procédé et dispositif pour exécuter des étapes de travail dans une machine à imprimer
DE10111068A1 (de) Walzenschloss zum lösbaren Befestigen einer Walze in einer Druckmaschine
EP0631868B1 (fr) Dispositif pour tendre en repérage des plaques d'impression sur les cylindres de machines d'impression
EP0714768A1 (fr) Dispositif d'accouplement d'une unité d'impression
DE4424977A1 (de) Bogenabweiser an bogenführenden Zylindern
EP0425935B1 (fr) Dispositif de mise en tension parallèle des plaques d'impression
DE19505630A1 (de) Vorrichtung zum Wechseln von Druckplatten
DD229666B1 (de) Steuereinrichtung fuer greifer eines vorgreifers an bogenverarbeitenden maschinen
EP0786338B1 (fr) Dispositif pour la mise en pression et hors pression d'un cylindre
DE19753820A1 (de) Vorrichtung zum gegenseitigen Anstellen von Druckwerkzylindern
DE10052354B4 (de) Vorrichtung zur Druckan- und Druckabstellung eines Gummizylinders zu einem Plattenzylinder und einem Gegendruckzylinder
DE4335185A1 (de) Einrichtung zum Betätigen von Saugluftsteuerelementen
EP1609598B1 (fr) Procédé d'entrainement sécurisé d'une machine d'impression et machine d'impression mettant en oeuvre ce procédé
DE4315905C2 (de) Klemm- und Spanneinrichtung für eine Druckmaschine
EP1712359B1 (fr) Dispositif et procédé pour presser un cliché contre un cylindre d'impression d'une presse rotative
DE4223328C2 (de) Vorrichtung zum Befestigen von Druckplatten auf dem Plattenzylinder von Druckmaschinen, insbesondere Bogenoffsetdruckmaschinen
EP2110246B1 (fr) Dispositif de changement de plaque d'impression
EP3546215B1 (fr) Dispositif pour fixer des plaques d'impression sur un cylindre porte-plaque
EP1297955B1 (fr) Dispositif pour la fixation d'un cliché d'impression

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

17P Request for examination filed

Effective date: 20021207

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid

Designated state(s): AT DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060705

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50207428

Country of ref document: DE

Date of ref document: 20060817

Kind code of ref document: P

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20060705

EN Fr: translation not 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

Effective date: 20070410

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070511

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060705

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

Ref country code: AT

Payment date: 20100914

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20110923

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50207428

Country of ref document: DE

Owner name: MANROLAND SHEETFED GMBH, DE

Free format text: FORMER OWNER: MANROLAND AG, 63075 OFFENBACH, DE

Effective date: 20120509

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 332234

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110903

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

Ref country code: AT

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

Effective date: 20110903

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: 20130403

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50207428

Country of ref document: DE

Effective date: 20130403