EP0936066A1 - Dispositif de commande pour une machine à imprimer - Google Patents

Dispositif de commande pour une machine à imprimer Download PDF

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Publication number
EP0936066A1
EP0936066A1 EP99102602A EP99102602A EP0936066A1 EP 0936066 A1 EP0936066 A1 EP 0936066A1 EP 99102602 A EP99102602 A EP 99102602A EP 99102602 A EP99102602 A EP 99102602A EP 0936066 A1 EP0936066 A1 EP 0936066A1
Authority
EP
European Patent Office
Prior art keywords
bus
angle
machine
stations
values
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
EP99102602A
Other languages
German (de)
English (en)
Other versions
EP0936066B1 (fr
Inventor
Johannes Tenfelde
Michael Dotzert
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 EP0936066A1 publication Critical patent/EP0936066A1/fr
Application granted granted Critical
Publication of EP0936066B1 publication Critical patent/EP0936066B1/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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0009—Central control units

Definitions

  • the invention relates to a control for a printing press according to the preamble of claim 1.
  • Sheetfed offset presses from widespread type usually have a central control in the form of a PLC or PC board control on. This control is on one with an angle encoder single-speed shaft in connection, so that the angular position values this Angle encoder within the control (a computer) with stored target angular position values compared for switching operations to be triggered accordingly can be.
  • Such central controls have the disadvantage that this according to the equipment of the machine (number of printing units, coating and other inline finishing facilities) must be designed.
  • a control for a printing press is known from DE 195 20 919 A1 which the printing press several units such as feeder, printing units, Painting equipment, boom and the like.
  • the individual units are assigned stations designed as computers, which via a particular connected to each other on a message-based protocol are.
  • An absolute or incremental angle encoder is arranged on one of the units (single-revolving shaft), whose angular position values over a separate bus system (angular bus) to the individual stations.
  • a detected in a unit via sensors arranged in the respective station Event is communicated to the other units via the first bus system, whereupon the functions to be triggered according to the determined event the station computers in the other units depending on the angular position signals triggered on the angle bus. This is done in the respective Station a comparison of the angular position signals present on the angular bus (Actual angular position) with target angular position values stored in the respective station.
  • the angle bus is for transmission the angular position values as one of the incremental or absolute angular position values transmitting bus system.
  • the angle bus Becomes an absolute angle encoder and a parallel bus system for transferring the absolute angular position values used, such a training expensive because of the associated Wiring costs the bus system considerably.
  • the use of a fast serial bus system is cost-intensive Transmission of the absolute angular position signals of an absolute angle encoder With a high resolution rate of the absolute angle encoder, however, do not have to only the bus system but also the interfaces in individual units Reading the angular position values should be designed to be correspondingly powerful.
  • an incremental encoder as an angle encoder has the disadvantage that that an absolute angular position information in the form of a zero pulse only at Run of the machine can be obtained. Accordingly, after the start of the Machine does not depend on the angular position until the first receipt of a zero pulse switching operations to be triggered. On the other hand, it is advantageous the usability of an incremental bus for transmitting the signals of the incremental encoder because of the small number of lines and the lower Isolation effort.
  • the object of the present invention is therefore a control according to the Develop the preamble of claim 1 such that, while avoiding the Disadvantages mentioned above by reducing the construction effort an inexpensive design of a bus system that transmits angular position values is obtained.
  • an absolute angle encoder in one of the units of the printing press an absolute angle encoder is provided, the absolute angle position signals converted into incremental signals by a downstream evaluation electronics are, these incremental signals during machine operation over the as Incremental bus trained angle bus to the individual stations (computers) of the Units are supplied.
  • the evaluation electronics of the absolute angle encoder stands additionally with which the individual stations for the transmission of Switching commands connecting bus system in connection, so that at Machine standstill absolute angular position values at the other stations are transferable. This ensures that even when the machine is at a standstill each of the stations (computers) has information about the current one Angular position the machine is currently.
  • the switching functions to be performed in the respective units depending on the angular position can then be triggered by the actual angular position values that can be generated in this way in the individual stations. If, for example, a sensor detects a faulty sheet on the system in the unit representing the first printing unit of the machine, a corresponding command is issued Missing sheet system "is forwarded to the further stations via the bus system, which is based in particular on a message-oriented protocol.
  • the blanket cylinder is then parked at the intended angular position by the impression cylinder and then by the blanket cylinder in accordance with the sheet travel
  • the individual units (printing units) in an evaluation group are compared with the currently available actual angular position values - generated from the absolute angular position values transmitted when the machine is at a standstill, together with the total angular increments - with the target angular position values provided for the switching operation to be carried out, and the corresponding switching operation is triggered if there is a match
  • the evaluation and processing of the angular position signals in the individual units described here using the example of the pressure cut-off in the event of a faulty sheet on the system was carried out The same applies to other events in the same way.
  • each Station for example, arranged in the evaluation group and an offset angle value containing memory, the content of which is permanent from the initial value of the counter of the evaluation group providing the current actual angle value is subtracted.
  • This offset angle value is for the individual Stations of the units chosen in such a way that to be executed on a specific command Switching operations in each station with a uniform target angular position value can be triggered.
  • a sheet-fed printing machine that can be converted from perfecting to perfecting can, in addition to a first angle encoder (before the turn), a second one Angle encoder (after the turn) should be provided.
  • the signals from the angle encoder, attached to the part to be rotated when moving the machine are then used for format-dependent positioning.
  • the machine is running can use the signals from the two angle sensors for monitoring the coupling device the turn can be evaluated in a suitable manner.
  • a printing machine not shown, has a plurality of units 1.1, 1.2, 1.3 in the form of an investor, one or more printing units, painting equipment as well as a boom.
  • the individual units are 1.1 - 1.3 each assigned to stations 2.1 - 2.3 comprising at least one computer, by which the switching operations to be carried out in the respective unit 1.1 - 1.3 as well as monitoring the sheet travel (sensors - not shown), etc. become.
  • An angular encoder is located on a single-speed shaft of the printing press, not shown 4 in the form of an absolute angle sensor, to which an electronic evaluation unit 5 is connected downstream. According to the invention it can be provided that the evaluation electronics 5 integrated in one of the stations 2.1 - 2.3 of the units 1.1 - 1.3 is.
  • the individual stations 2.1 - 2.3 of the units 1.1 - 1.3 are connected to one another by a bus 6, which is based in particular on a message-oriented protocol (for example CAN bus), for exchanging signals in the sense of commands or messages.
  • a message-oriented protocol for example CAN bus
  • an event can be detected within the stations 2.1 by appropriate sensors (e.g. Missing sheet system "), whereupon signals (message) representing the event are forwarded to the further stations 2.2, 2.3 via the first bus 6.
  • the individual stations 2.1 - 2.3 are through a second bus 7 as an angle bus connected with each other.
  • This second bus 7 is designed as an incremental bus, i.e. over the lines of this bus 7 are corresponding to the rotation of the Machine and the resolution of the angle encoder 4 incremental signals.
  • the second bus 7 is directly connected to the output of the evaluation electronics 5 of the angle encoder 4 connected.
  • To generate the incremental signals for this Signals transmitting bus 7 is preferably the bit of the angle encoder 4 evaluated at the highest resolution and provided as incremental signals.
  • the evaluation electronics 5 of the angle encoder designed as an absolute angle encoder 4 stands over a corresponding interface with which the signal exchange between the individual stations 2.1 - 2.3 serving first bus 6 in connection. It is provided that when the machine comes to a standstill via the bus 6 each current and delivered by the angle encoder 4 angle value to the individual Stations 2.1 - 2.3 is sent.
  • the individual stations 2.1-2.3 have suitable hardware components (Interfaces, bus couplers and the like) as well as corresponding program routines realized evaluation groups 3.1 - 3.3, each with one input with the Signal exchange and the transmission of the absolute angular position values (at Machine standstill) bus 6 and the transmission of the incremental signals serve bus 7 are connected.
  • FIG. 2 shows the basic components of an evaluation group 3.1 in detail.
  • Embodiment variants of the invention are those via the bus 6 when the machine is at a standstill transferable absolute values of the angle encoder 4 a first input a loadable counter 8 fed to the evaluation group 3.1.
  • This loadable counter 8 is via a second input with that of the transmission of the incremental signals serving second bus 7 connected such that the machine running on this Counter 8 applied signals of bus 7 increase the absolute value in counter 8 and this provides the corresponding value at the output as the actual angle value.
  • the output of the counter 8 containing the current actual angle value becomes one Totalizer 9 supplied, on the other hand with that contained in a memory 10 Offset angle value is related.
  • the totalizer 9 because of the sign of the sizes to be linked, shown in FIG Subtraction of the offset angle value from that provided by the counter 8 current actual angle value.
  • station 2.1 stands around the offset angle value corrected angle value is available, which is indicated by a connection Computer system of the station 2.1 is supplied.
  • these for the respective Offset angle value corrected actual angular position values are then compared with the target angular position values stored in station 2.1, in order to over the events / commands transmitted in bus 6 in unit 1.1 Carry out switching operations or actions.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP99102602A 1998-02-14 1999-02-11 Dispositif de commande pour une machine à imprimer Expired - Lifetime EP0936066B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806141 1998-02-14
DE19806141A DE19806141A1 (de) 1998-02-14 1998-02-14 Steuerung für eine Druckmaschine

Publications (2)

Publication Number Publication Date
EP0936066A1 true EP0936066A1 (fr) 1999-08-18
EP0936066B1 EP0936066B1 (fr) 2001-12-19

Family

ID=7857766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102602A Expired - Lifetime EP0936066B1 (fr) 1998-02-14 1999-02-11 Dispositif de commande pour une machine à imprimer

Country Status (4)

Country Link
EP (1) EP0936066B1 (fr)
JP (1) JP3040391B2 (fr)
AT (1) ATE211070T1 (fr)
DE (2) DE19806141A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391322A1 (fr) * 2002-08-19 2004-02-25 Müller Martini Holding AG Unité de travail pour un processus traversé par des produits imprimés

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055545A1 (de) * 2006-11-24 2008-05-29 Koenig & Bauer Aktiengesellschaft Verfahren zum Betreiben einer Rotationsdruckmaschine
DE102007062333B3 (de) * 2007-12-21 2009-04-30 Robert Bosch Gmbh Verfahren zur Übertragung von Multiturn-Modulo-Leitachsdaten
DE102014116074A1 (de) * 2014-11-04 2016-05-04 manroland sheetfed GmbH Steuerung für Bogendruckmaschinen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520919A1 (de) * 1995-06-08 1996-12-12 Roland Man Druckmasch Steuerung für eine Druckmaschine
DE19727824C1 (de) * 1997-06-30 1998-11-19 Siemens Ag Verfahren und Vorrichtung zum dezentralen Betrieb bzw. Aufbau einer autarken, winkelgenauen Gleichlaufregelung einzelner Antriebe eines vernetzten Mehrmotorenantriebssystems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520919A1 (de) * 1995-06-08 1996-12-12 Roland Man Druckmasch Steuerung für eine Druckmaschine
DE19727824C1 (de) * 1997-06-30 1998-11-19 Siemens Ag Verfahren und Vorrichtung zum dezentralen Betrieb bzw. Aufbau einer autarken, winkelgenauen Gleichlaufregelung einzelner Antriebe eines vernetzten Mehrmotorenantriebssystems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391322A1 (fr) * 2002-08-19 2004-02-25 Müller Martini Holding AG Unité de travail pour un processus traversé par des produits imprimés

Also Published As

Publication number Publication date
JP2000037858A (ja) 2000-02-08
DE19806141A1 (de) 1999-08-19
ATE211070T1 (de) 2002-01-15
DE59900562D1 (de) 2002-01-31
JP3040391B2 (ja) 2000-05-15
EP0936066B1 (fr) 2001-12-19

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