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EP2296047B1 - Arrêt de l' alimentation en papier à une machine d' impression en cas de coupure de courant - Google Patents

Arrêt de l' alimentation en papier à une machine d' impression en cas de coupure de courant Download PDF

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Publication number
EP2296047B1
EP2296047B1 EP20100171667 EP10171667A EP2296047B1 EP 2296047 B1 EP2296047 B1 EP 2296047B1 EP 20100171667 EP20100171667 EP 20100171667 EP 10171667 A EP10171667 A EP 10171667A EP 2296047 B1 EP2296047 B1 EP 2296047B1
Authority
EP
European Patent Office
Prior art keywords
machine
printing
printing material
voltage supply
control device
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.)
Active
Application number
EP20100171667
Other languages
German (de)
English (en)
Other versions
EP2296047A3 (fr
EP2296047A2 (fr
Inventor
Franz Haaf
Klaus-Dieter Kleibaumhüter
Helmut Meyer
Werner Stadler
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 EP2296047A2 publication Critical patent/EP2296047A2/fr
Publication of EP2296047A3 publication Critical patent/EP2296047A3/fr
Application granted granted Critical
Publication of EP2296047B1 publication Critical patent/EP2296047B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/06—Tripping devices or stop-motions for starting or stopping operation of sheet or web feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/016—Brakes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0018—Protection means against injury to the operator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/12—Tripping devices or stop-motions for starting or stopping the machine as a whole
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/20—Safety devices preventing damage

Definitions

  • the present invention relates to an electrical power supply device for printing material processing machines with at least one drive motor for the transport of substrate and at least one further electrical consumer.
  • a power failure occurs during the operation of substrates processing machines, it results not only a short business interruption, but a longer break in work, as such a power failure also paralyzes the control computer of the press, and so requires a complex booting of the control computer. Furthermore, after a power failure, the printing press must first be accelerated again to printing speed.
  • Power supply devices for printing machines are known from the prior art, which are set up in the event of a power failure for an emergency power supply. Such a power supply goes out of the EP 1223656 A1 out.
  • a rotary printing machine is connected to an uninterruptible power supply.
  • This uninterruptible power supply has a feeding energy storage, which allows in one embodiment to continue the printing operation. For this purpose, a correspondingly large energy storage is available, which is operated if necessary in the form of a diesel engine. In a solution with a smaller energy storage a defined shutdown of the printing machine is ensured in a complete failure of the power grid.
  • a similar device for emergency power supply goes from the DE 102004022234 A1 out.
  • a printing press has a plurality of DC voltage levels, which are connected in parallel via a so-called DC power supply bus.
  • Components for power supply in the event of voltage dips or power failures are also coupled to this DC power supply bus. These components may be capacitors, accumulators, fuel cells, flywheel accumulators or internal combustion engine generators.
  • DE 102008009907 A1 is an electrical power supply device for printing material processing machines known which allows for failure or break in the mains voltage safe operating condition of the machine.
  • the kinetic energy stored in the drive motor of the printing material is used to supply electrical loads necessary for controlling the machine. If the kinetic energy in the drive motor of the printing material processing machine has fallen below a minimum value, the electrical energy for supplying the control components of the machine from an energy storage device such. As an accumulator or a capacitor.
  • the European patent application EP 2 099 113 A1 shows a method and apparatus for controlling a web-fed rotary printing press in the event of a failure or failure in the electrical supply network.
  • web-fed rotary printing presses which print endless material such as paper webs
  • voltage drops on the electric drive lead to breakage of the conveyed webs Such a web break leads to a long production downtime, which can not be tolerated especially in a time-critical production of newspapers. It is therefore shown a way how a web-fed rotary printing press can be kept running even in the event of a power failure, so that the drive motors do not lose their synchronicity and a breakage of the paper web is avoided.
  • the machine control of the web-fed rotary printing press slows down the machine, with the print bridges remaining employed, so that further sellable copies can be printed. If the mains voltage returns before the web-fed rotary printing press has been brought to a standstill, it can be brought back to printing speed.
  • the non-paper-carrying part of the printing press with its drives provides regenerative electrical energy, which can be used to supply the drives of the paper-carrying part of the web-fed rotary printing press. In this way it is ensured that during the braking process in case of failure of the mains voltage, the drives of the paper web continue to be supplied with power and so a web break is avoided. In this way, at least during short power outages Web-fed rotary printing press, although at significantly reduced printing speed, kept running and immediately switched back to operation on return of the mains voltage.
  • the control device is equipped on the one hand with a voltage sensor which permanently monitors the supply voltage provided by the power supply for voltage dips or power failure.
  • the control device is at least with the main drive motor and other drive motors and power consumers in the printing material processing machine via a communication system such. As a bus system, connected to each other. If a power failure is detected, the machine is shut down and the printing materials remaining in the press are shut down promoted., which facilitates the restart significantly.
  • the control device can also disable individual drive motors or other power consumers from the power supply of the machine and thus reduce the power consumption of the machine in case of voltage dips or power failure crucial.
  • the control device assumes a significant voltage dip or imminent power failure when falling below a minimum allowable supply voltage.
  • the control device preferably shuts off electrical loads of the substrate-processing machine which are not required for the transport of the substrate.
  • the in these consumers such as. B. auxiliary motors, or stored in the moving, rotating masses of the printing press kinetic energy can then be used to supply the drive motor for the substrate transport with electrical energy, so that the substrate transport can be continued and the substrates can be promoted from the printing press.
  • control device stops falling below the minimum allowable supply voltage, the supply of substrates for printing material processing machine.
  • the feeder in front of the first printing unit needs to be switched off so that no further printing material is fed into the printing press.
  • the sheets already in the printing press are then printed to the end and stored in the delivery. In this way it is effectively avoided that unnecessary waste and thus costs arise. At the same time, this ensures that when the press is restarted after the power failure, no printing materials remain in the machine and thus an immediate restart is possible.
  • the control device stops the machine after the delivery of the substrates located in the machine. With this shutdown after the conveying out of the printing materials, the safety requirements are met, which state that the printing press must not get into an uncontrollable state in case of power failure. This is avoided by stopping after the delivery of the substrates, so that the safety requirements is satisfied. At the same time is shut down by stopping the machine, the main drive for the printing substrate as the largest power consumers, so that the stored in other consumers in the system electrical energy can be used mainly to supply the electrical control devices and so a shutdown of the control device such. B. the control computer of the printing material processing machine can be avoided.
  • control device detects the duration of a voltage dip and, with only a short duration, the processing of Printing materials in the machine continues. At very short voltage drops as an interruption of the printing process is avoided and the printing machine loses only a short time at printing speed without stopping the machine with prior feeding out of the substrates located in the machine is necessary. This significantly increases the availability of the printing press and avoids unnecessary downtime. Only when the maximum permissible duration of a voltage dip has been exceeded and therefore the kinetic energy stored in the machine is insufficient for further operation of the printing material-processing machine, the switchover to emergency operation and carried out in the machine substrates are conveyed out and then shut down the machine.
  • the shutdown of the printing press after the conveying out of the substrates can be done by connecting a braking resistor.
  • This braking resistor is also referred to as a chopper and converts the kinetic energy stored in the drive motors of the printing machine into heat.
  • a mechanical brake braking by means of resistance is wear-free, which is particularly important for large printing machines with large moving masses, otherwise a braking operation would wear out a mechanical brake completely.
  • an additional holding brake may be provided in mechanical form, which acts on the drive motor for printing substrate.
  • this holding brake is not intended for the actual braking operation, but serves primarily to prevent inadvertent rotation of the moving masses in the printing press after stopping the machine. This means that the holding brake only takes over the function of a pawl.
  • the printing material processing machine has an operating element for an emergency stop and that the control device causes upon actuation of this operating element an immediate shutdown of the machine by driving the braking device and / or the braking resistor.
  • This control element for the emergency stop is effective at all times, so that even in the phase after a power failure or voltage dip an emergency stop can be made at any time. This can be effected at any time during the outfeeding the still remaining in the substrate processing machine substrates an emergency stop when z. B. limbs of staff in a dangerous area of the machine. In this case, the process of the Prompting out the substrates aborted and instead brought the machine by means of braking resistor or the braking device, whereby both are combined, brought to an immediate halt.
  • the machine is a printing machine and that during the feeding out of the printing materials from the machine, the control device maintains the necessary settings for the printing operation in the machine.
  • the printing job of printing cylinder, blanket cylinder and plate cylinder is maintained so that the after the switching off of the printing material still remaining in the printing press not only conveyed out, but continue to be printed. In this way it is avoided that the printing materials remaining in the printing press, which are conveyed out, waste and must be disposed of.
  • the printing machine thus remains during the conveying out of the remaining substrates in the printing operation. Due to the large existing in printing machines, moving masses, the kinetic energy stored in these masses is sufficient to print in a power failure, the remaining substrates in sufficient quality and so to avoid waste.
  • the electrical voltage supply device has at least two different voltage supply levels and at least two of these different voltage supply levels are connected to one another via a bidirectional voltage converter.
  • a bidirectional voltage converter it must be ensured that all printing materials are conveyed out of the printing press, since otherwise this will lead to problems when restarting the printing press. For this reason, sufficient energy must be supplied to the main drive for transporting the substrate, so that all substrates can be conveyed out.
  • the stored in the machine kinetic energy as many auxiliary drives or other energy storage is needed, including an energy exchange over several different voltage supply levels in the press should be possible away.
  • auxiliary drives which at another voltage supply level than the main drive motor for the substrate transport are connected to be used for power supply just this main drive motor.
  • the energy exchange between the voltage supply levels takes place via the bidirectional voltage transformer, via which electrical energy can be transported in both directions.
  • the figure shows the power supply of a printing machine 1, which has a plurality of DC voltage levels 5, 6, 12.
  • the power network of the printing press 1 usually draws its electrical energy from a three-phase current network L1, L2, L3 during the current printing operation.
  • the three-phase current is converted in a rectifier 3 into 540 V DC for a first DC voltage level 5.
  • the 540 volt DC voltage level 5 supplies the high power electric drives 9, 10, which consist of one or more main drive motors 9 with some 10 to more than 100 KW power, and several small auxiliary drive motors 10 in the range of 10 KW power.
  • To the 540 volt DC voltage level 5 is connected via a bidirectional DC-DC converter 7, a second DC voltage level 6 with 380 volts DC.
  • the bidirectional DC-DC converter 7 By the bidirectional DC-DC converter 7, it is possible to exchange electrical energy between the two DC voltage levels 5, 6 in both directions.
  • the 380 volt DC voltage level 6 supplies mainly auxiliary drives 11 with some KW power with electrical energy, which drive, for example, cooling units or Blas Kunststoffaggregate the printing machine 1.
  • a 24 volt DC voltage level 12 is connected to the 380 volt DC voltage level 6 via a unidirectional DC-DC converter 8.
  • This low-voltage DC voltage level 12 supplies only small drives 13 and low-current consumers 14 such as electronic computers with electrical energy.
  • a control device 2 is provided, which examines the voltage U delivered by the rectifier 3 for voltage dips.
  • the control device 2 detects not only the actual mains voltage U, but also the period of a voltage dip or power failure. Only when the period is too large, the printing machine 1 is switched to an operating state in which the remaining in the printing machine 1 printing materials are conveyed out. With only a brief voltage dip, only the printing speed of the printing press 1 is reduced and the printing operation is not interrupted. However, should the voltage dip too large and the duration of the voltage dip indicate a power failure, the control device 2 switches the auxiliary drives 10 and the auxiliary drives 11 in the generator mode, so that all kinetic energy of auxiliary drives 10 and auxiliary drives 11 via the bidirectional DC-DC converter. 7 connected DC voltage levels 5, 6 are passed to the main drive motor 9.
  • control device 2 can additionally switch off the small drives 13 of the 24 V DC voltage level 12 and thus further reduce the power consumption. In this case, only weak current consumers 14, such as control computers and, of course, the control device 2 remain as consumers in the DC voltage levels 5, 6, 12 next to the main drive 9.
  • the control device 2 which z. B. may be integrated into the control computer of the printing machine 1, first the printing material supply z. B. in the investor of a sheet-fed press. This prevents further substrates from entering the printing machine 1. The still present in the printing press 1 substrates are further promoted by the main drive 9 through the printing press 1 and also printed. After the last substrate has left the printing machine 1, the control device 2 brakes the main drive 9 by means of the braking resistor 4. When the main drive 9 has come to a halt in this manner, the control device 2 also actuates a holding brake 15, which mechanically locks the main drive 9 against unintentional rotation. This locking is done for security reasons.
  • an immediate emergency stop of the printing press 1 can be effected at any time by a pressure on the emergency stop switch 16.
  • the feeding out of the substrates is interrupted and the controller 2 brakes the main drive 9 immediately by means of braking resistor 4 and if necessary by means of the holding brake 15 to standstill.
  • Such an emergency stop is also initiated when the operator opens a protection on the printing machine 1 during the conveying out of the substrates or during the normal printing operation. In this case, before resuming printing, the substrates remaining in the machine must be removed by hand.
  • the present invention prevents printing materials from remaining in the printing machine 1 even in the event of a power failure, thus unnecessarily delaying the restarting of the printing press 1.
  • the present invention prevents printing materials from remaining in the printing machine 1 even in the event of a power failure, thus unnecessarily delaying the restarting of the printing press 1.
  • the formation of waste can be prevented, which increases productivity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Rotary Presses (AREA)
  • Control Of Electric Motors In General (AREA)

Claims (10)

  1. Dispositif d'alimentation électrique de tension pour une machine (1) de traitement d'un support imprimé comprenant au moins un moteur d'entraînement (9) pour le transport de supports imprimés et au moins un autre poste de consommation électrique (10, 11, 13, 14),
    caractérisé en ce que
    la machine (1) de traitement d'un support imprimé est une machine rotative d'impression de feuille et les supports imprimés sont des feuilles et en ce qu'il est prévu un dispositif de commande (2) qui commande en cas de dépassement d'une tension minimale d'alimentation admissible (Umin) de la machine (1) de traitement d'un support imprimé, le moteur d'entraînement (9) de sorte qu'au moyen de l'énergie stockée dans les masses mobiles de la machine (1) de traitement d'un support imprimé, les supports imprimés se trouvant encore dans la machine (1) de traitement d'un support imprimé sont transportés vers l'extérieur et en ce que le dispositif de commande (2) arrête l'amenée de supports imprimés à la machine (1) de traitement d'un support imprimé si la tension minimale d'alimentation (Umin) n'est pas atteinte.
  2. Dispositif d'alimentation électrique de tension selon la revendication 1,
    caractérisé en ce que
    des postes consommateurs électriques (10, 11, 13, 14) qui ne sont pas nécessaires pour le transport de supports imprimés sont déconnectés par la commande (2) et le moteur d'entrainement (9) est alimenté par l'énergie stockée dans la machine (1) de traitement d'un support imprimé pour le transport de supports imprimés.
  3. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de commande (2) arrête la machine (1) après la sortie des supports imprimés se trouvant dans la machine (1) de traitement d'un support imprimé.
  4. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif de commande (2) saisit la durée d'une baisse de tension et poursuit le traitement de supports imprimés dans la machine (1) en cas d'une courte durée de la baisse.
  5. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce qu'après la sortie des supports imprimés de la machine (1) de traitement d'un support imprimé, l'immobilisation de la machine s'effectue par intervention d'un dispositif de freinage (4).
  6. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce que la machine (1) de traitement d'un support imprimé présente un frein d'arrêt (15) pour le moteur d'entraînement (9) destiné au transport des supports imprimés, lequel frein actionne le dispositif de commande (2) une fois que la sortie des supports imprimés et l'immobilisation de la machine (1) sont terminées.
  7. Dispositif d'alimentation électrique de tension selon la revendication 6,
    caractérisé en ce que
    la machine (1) de traitement d'un support imprimé présente un élément de manipulation (16) d'arrêt d'urgence et en ce que le dispositif de commande (2) provoque une immobilisation immédiate de la machine (1) à l'actionnement de cet élément de manipulation (16) par commande du frein d'arrêt (15) et/ou du dispositif de freinage (4).
  8. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce que
    la machine (1) est une machine d'impression et en ce que pendant la sortie des supports imprimés, le dispositif de commande (2) conserve les réglages nécessaires au mode d'impression.
  9. Dispositif d'alimentation électrique de tension selon l'une des revendications précédentes,
    caractérisé en ce que le dispositif d'alimentation électrique de tension dispose d'au moins deux plans d'alimentation de tension différents (5, 6, 12) et de ces plans d'alimentation différents au moins deux sont reliés entre eux par un convertisseur de tension bidirectionnel.
  10. Machine d'impression comprenant un dispositif d'alimentation de tension électrique selon l'une des revendications précédentes.
EP20100171667 2009-09-14 2010-08-03 Arrêt de l' alimentation en papier à une machine d' impression en cas de coupure de courant Active EP2296047B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009041485A DE102009041485A1 (de) 2009-09-14 2009-09-14 Papierfreie Druckmaschine bei Stromausfall

Publications (3)

Publication Number Publication Date
EP2296047A2 EP2296047A2 (fr) 2011-03-16
EP2296047A3 EP2296047A3 (fr) 2011-06-01
EP2296047B1 true EP2296047B1 (fr) 2013-06-12

Family

ID=43304890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100171667 Active EP2296047B1 (fr) 2009-09-14 2010-08-03 Arrêt de l' alimentation en papier à une machine d' impression en cas de coupure de courant

Country Status (5)

Country Link
US (1) US8736105B2 (fr)
EP (1) EP2296047B1 (fr)
JP (1) JP5656527B2 (fr)
CN (1) CN102019751B (fr)
DE (1) DE102009041485A1 (fr)

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DE102007028098B4 (de) 2007-06-19 2014-09-25 Airbus Defence and Space GmbH Flugzeug mit Rumpfschale und Fußbodenstruktur
EP2184833A2 (fr) * 2007-07-13 2010-05-12 WIFAG Maschinenfabrik AG Procédé et dispositif destinés à la commande d'une imprimante en cas de panne dans un réseau d'alimentation électrique
EP2099113A1 (fr) * 2008-03-05 2009-09-09 WIFAG Maschinenfabrik AG Procédé et dispositif destinés à la commande d'une imprimante en cas de panne dans un réseau d'alimentation électrique

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DE102009041485A1 (de) 2011-04-14
CN102019751A (zh) 2011-04-20
EP2296047A3 (fr) 2011-06-01
US20110107931A1 (en) 2011-05-12
JP5656527B2 (ja) 2015-01-21
EP2296047A2 (fr) 2011-03-16
CN102019751B (zh) 2014-08-06
US8736105B2 (en) 2014-05-27
JP2011056954A (ja) 2011-03-24

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