EP1046501B1 - Dispositif pour contrôler la position des plaques d'impression sur cylindres porte-plaques des machines d'impression - Google Patents

Dispositif pour contrôler la position des plaques d'impression sur cylindres porte-plaques des machines d'impression Download PDF

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Publication number
EP1046501B1
EP1046501B1 EP00107564A EP00107564A EP1046501B1 EP 1046501 B1 EP1046501 B1 EP 1046501B1 EP 00107564 A EP00107564 A EP 00107564A EP 00107564 A EP00107564 A EP 00107564A EP 1046501 B1 EP1046501 B1 EP 1046501B1
Authority
EP
European Patent Office
Prior art keywords
plate cylinder
plate
printing
signal generator
stop
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
EP00107564A
Other languages
German (de)
English (en)
Other versions
EP1046501A1 (fr
Inventor
Michael Rother
Peter Biernot
Helmut Schild
Thomas Kleinschmitt
Johannes Tenfelde
Franz Reiner
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 EP1046501A1 publication Critical patent/EP1046501A1/fr
Application granted granted Critical
Publication of EP1046501B1 publication Critical patent/EP1046501B1/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
    • B41F27/005—Attaching and registering printing formes to supports
    • 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
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters

Definitions

  • the invention relates to a device for controlling the position of printing plates on the plate cylinder of printing machines, in particular sheet-fed offset printing machines according to the preamble of claim 1.
  • a device for mounting a plate on the plate cylinder of a printing machine in which the register-oriented position of the printing plate is determined by cooperating with punched-out on the pressure plate edge electrically interrogatable register stops.
  • the register pins formed as stops or parts of the register pins are electrically isolated from the plate cylinder, so that a circuit is closed by contact with the electrically conductive pressure plate.
  • the signals of the register pins can be fed to an evaluation unit arranged outside the plate cylinder, by means of which the register-oriented position of the printing plate can be displayed on a display device.
  • the disadvantage here is that the corresponding contact surfaces on the plate cylinder and the contact surfaces cooperating with the contact rollers can be contaminated in particular by printing ink, so that a safe lead out of the signals is not always guaranteed. A register-oriented position of the plate on the plate cylinder would therefore no longer be displayed.
  • Object of the present invention is therefore a device for controlling the register-oriented position of printing plates on the plate cylinder of printing presses according to the preamble of claim 1 such further, so that while avoiding the disadvantages mentioned above, a fail-safe determination of the position of the printing plate is possible.
  • the signal generator is mounted outside the plate cylinder fixed to a frame and in a provided for feeding a new printing plate to the plate cylinder angular position on the plate cylinder, wherein alignment means are provided by which the signal generator in a defining position the plate cylinder can be brought.
  • the suspension of the signal generator and the signal generator temporarily (during the feeding of the new printing plate) receiving mounting device for the printing plate edge are designed such that the signal generator assumes a register-registered position of the printing plate on the plate cylinder position.
  • the signal transmitter preferably has a centering tip, which cooperates with a corresponding bore on the plate cylinder or the fastening device for the pressure plate.
  • the signal generator is arranged outside the plate cylinder and is only temporarily employed on the plate cylinder, it is possible to connect the evaluation with the signal generator (eg. In the attack) directly (permanent line connection). This eliminates additional contact surfaces, which are subject to contamination.
  • FIGS. 1 and 2 show a part of a plate cylinder 2 with a fastening device 3 mounted therein and designed as a rail for the edge of a printing plate 1 assigned to the beginning of printing (FIG. 2). Trained as a clamping rail fastening device 3 has in the region of the top of a recess, so that the stopper 4 can interact directly with a arranged on the underside of the detection area (nip) 5 contour 6.
  • the stop 4 is mounted on the pivotable end of a lever 7 formed as a suspension, which is mounted about a parallel to the axis of the plate cylinder 2 extending axis 8. During normal printing operation, the suspension 7 is stopped with the stop 4 from the plate cylinder 2 and is in the rest position.
  • the stopper 4 undergoes an alignment in the working position according to FIG. 2, so that the pressure plate 1 resting against the stop 4 thereby experiences a register-correct position on the plate cylinder 2.
  • the stop 4 is designed, for example, as a register pin and has an electrically interrogatable contact as a signal generator 9.
  • This contact can be formed as an electrically insulated area, so that the system of the pressure plate 1 (the pressure plate 1 with a corresponding U-shaped punched) causes a flow of current.
  • the contact is permanently (line) connected to the downstream evaluation unit 10. If the pressure plate is in contact with the stop 4 in the correct position or the contact 9 of the stop 4, a corresponding signal can be generated by the evaluation unit 10, so that the register-correct position of the printing plate 1 can be displayed on a display device and / or the remotely operable fastening device 3 can be activated for clamping the printing plate 1.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)
  • Rotary Presses (AREA)

Claims (7)

  1. Dispositif pour contrôler la position des plaques d'impression sur le cylindre porte-plaques des machines d'impression, en particulier des machines d'impression offset à feuilles, comprenant une butée définissant la position de la plaque d'impression sur le cylindre porte-plaques, ainsi qu'un émetteur de signaux détectant la position de la plaque d'impression avec une unité d'analyse montée en aval,
    caractérisé en ce que l'émetteur de signaux (9) est monté en étant fixé sur le bâti sur une suspension (7) en dehors du cylindre porte-plaques (2) et peut être placé au niveau du cylindre porte-plaques dans une position angulaire prévue par rapport au cylindre porte-plaques pour l'introduction d'une nouvelle plaque d'impression (1), des moyens d'alignement (6, 8) étant prévus, grâce auxquels l'émetteur de signaux (9) peut être amené dans une position définie par rapport au cylindre porte-plaques (2).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que l'émetteur de signaux (9) peut être pivoté au moyen d'une suspension (7) autour d'un axe agencé parallèlement à l'axe du cylindre porte-plaques (2).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que l'émetteur de signaux (9) est agencé dans la butée (4) définissant la position de la plaque d'impression (1) et peut être placé en même temps que cette butée (4) sur le cylindre porte-plaques (2).
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que les moyens d'alignement (6, 8) sont réalisés sous la forme d'une pointe de centrage (4) conçue sur une extrémité de l'émetteur de signaux (9) ou de la butée (4), ainsi qu'un contour (6) agencé dans le dispositif de fixation (3) du cylindre porte-plaques (2).
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que l'émetteur de signaux (9) présente un contact électrique pouvant être actionné lors de l'installation de la plaque d'impression (1).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que le contact se présente sous la forme d'une zone conçue en étant isolée électriquement par rapport à la butée (4), lequel contact établit une liaison électrique lors de l'installation de la plaque d'impression (1).
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que l'émetteur de signaux (9) est conçu sous la forme d'un capteur détectant sans contact la plaque d'impression (1).
EP00107564A 1999-04-22 2000-04-07 Dispositif pour contrôler la position des plaques d'impression sur cylindres porte-plaques des machines d'impression Expired - Lifetime EP1046501B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29907122U DE29907122U1 (de) 1999-04-22 1999-04-22 Einrichtung zur Kontrolle der Lage von Druckplatten auf den Plattenzylinder von Druckmaschinen
DE29907122U 1999-04-22

Publications (2)

Publication Number Publication Date
EP1046501A1 EP1046501A1 (fr) 2000-10-25
EP1046501B1 true EP1046501B1 (fr) 2007-05-30

Family

ID=8072537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107564A Expired - Lifetime EP1046501B1 (fr) 1999-04-22 2000-04-07 Dispositif pour contrôler la position des plaques d'impression sur cylindres porte-plaques des machines d'impression

Country Status (4)

Country Link
EP (1) EP1046501B1 (fr)
JP (1) JP3380209B2 (fr)
AT (1) ATE363392T1 (fr)
DE (2) DE29907122U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005061912A1 (de) * 2005-12-23 2007-07-05 Koenig & Bauer Aktiengesellschaft Vorrichtung und Verfahren zur Detektion der Lage einer Druckplatte in einer Druckmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194199B2 (ja) * 1992-01-17 2001-07-30 株式会社小森コーポレーション 版胴への刷版装着装置
JP3379974B2 (ja) * 1992-02-10 2003-02-24 株式会社小森コーポレーション 刷版装着状況確認装置

Also Published As

Publication number Publication date
EP1046501A1 (fr) 2000-10-25
DE50014356D1 (de) 2007-07-12
DE29907122U1 (de) 1999-07-01
ATE363392T1 (de) 2007-06-15
JP2000313101A (ja) 2000-11-14
JP3380209B2 (ja) 2003-02-24

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