EP1386035A2 - Devices for drawing in a web of material - Google Patents

Devices for drawing in a web of material

Info

Publication number
EP1386035A2
EP1386035A2 EP02740311A EP02740311A EP1386035A2 EP 1386035 A2 EP1386035 A2 EP 1386035A2 EP 02740311 A EP02740311 A EP 02740311A EP 02740311 A EP02740311 A EP 02740311A EP 1386035 A2 EP1386035 A2 EP 1386035A2
Authority
EP
European Patent Office
Prior art keywords
electric motor
pull
speed
einzugmitteis
pulling
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
EP02740311A
Other languages
German (de)
French (fr)
Other versions
EP1386035B1 (en
Inventor
Erwin Paul Josef Lehrieder
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1386035A2 publication Critical patent/EP1386035A2/en
Application granted granted Critical
Publication of EP1386035B1 publication Critical patent/EP1386035B1/en
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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/03—Threading webs into printing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/52—Auxiliary process performed during handling process for starting
    • B65H2301/522—Threading web into machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to devices for pulling a web of material into a machine according to the preamble of claims 1, 5 or 6.
  • Devices of this type are used in printing presses in order to convey the beginning of the web of material along the desired drawing-in path through the printing press. This is necessary, for example, when moving in for a new production, or whenever a material web is torn off during the printing process, so that the beginning of the web of the new material web cannot be pulled through by means of a flying roll change.
  • the printing units can be traversed along different conveying paths in order to be able to achieve correspondingly different printing results, so that when converting, the new material web must be drawn in along the corresponding feeding path.
  • a device for pulling material webs in rotary printing presses in which the pulling-in means designed in the manner of a spring steel strip can be pushed through the outlet of the printing press along different pulling-in paths, between which it can be switched by means of switches.
  • the pull-in means is driven by a fixedly arranged drive wheel, which comes into positive engagement with the pull-in means and the pull-in means through the printing press along its entire length.
  • EP 0418 903 A2 discloses a device for pulling in a material web, wherein a pulling-in means is driven by a motor which is regulated as a function of measurement data determined during the pulling-in process. The regulation takes place with regard to a constant retraction speed or speed.
  • DE 9409390 U1 discloses a device for pulling in a material web, a pulling means being driven by a stepper motor. A transport route already covered by the pull-in means is detected by means of sensors.
  • the invention has for its object to provide devices for pulling a web of material.
  • An advantage of the invention is, in particular, that the flexible and finely designed pull-in means can be wound up on a spool, so that only a small amount of space is required to store the part of the pull-in means that is not inserted into the printing press.
  • the design as a finite drawing-in means, which is fastened at one end to a bobbin and can be completely wound up, is of great advantage that, in contrast to endless or rewinding drawing-in means, different drawing-in paths can be realized via switches.
  • the drive of the pull-in means can basically be guaranteed in any way.
  • the pulling-in means is carried out by driving the bobbin, which is used for winding or unwinding the Einzugmitteis can be driven in two directions. A separate drive wheel for driving the pull-in center can thus be dispensed with.
  • a controllable electric motor is preferably used to drive the coil former, so that the coil former can be driven in a controlled manner with different rotational speeds and / or torques.
  • the feed rate of the Einzugmitteis or the applied moment can then be adjusted by controlling the electric motor, a constant conveying speed or a comparable torque on the feed means.
  • the electric motor can also be controlled in accordance with a speed (e.g. frequency) or a torque (power).
  • the linearly directed feed speed of the pull-in center can be determined in a simple manner and can then be regulated to a desired value by corresponding regulation of the speed of rotation of the bobbin.
  • a corresponding dependency of the target speed on the number of revolutions that is stored in the software as a control curve is also conceivable.
  • the feed means can therefore preferably be in the form of a steel strip, in particular a spring steel strip, since steel strips have a high degree of flexibility and at the same time can transmit high tensile or compressive stresses.
  • steel strips have a high degree of flexibility and at the same time can transmit high tensile or compressive stresses.
  • plastic straps, chains or appropriately designed ropes is also possible.
  • the pull-in means can be covered at least in regions with a friction-reducing layer.
  • a friction-reducing layer it is possible to encase a steel strip pull-in means with a plastic layer, in order to thereby combine the material properties of the steel strip with high tensile or compressive strength with the desired low-friction material properties of the plastic.
  • FIG. 1 shows a printing press with a device for drawing in a material web in a schematically illustrated cross section.
  • a printing machine 01 for the treatment of material webs, for. B. of paper webs, a device 08; 09; 11 provided for retraction.
  • the printing press 01 shown in cross section in the drawing has two printing units 02; 03 with two double printing units or four printing units and three reelstands 04; 06; 07 on.
  • the devices 08; 09; 11 each consist of a pull-in center 12 designed in the manner of a spring steel strip 12, which is mounted on a rotationally symmetrical bobbin 13 can be wound up.
  • the bobbin 13 is by means of a motor 17, for. B. an electric motor 17 (shown only for the upper bobbin 13), in particular by means of a controllable AC motor 17 with frequency converter.
  • the control takes place in such a way that the speed is changed with a changing coil radius in such a way that the retraction speed is almost constant over time.
  • the regulation can also take place in such a way that the electric motor 17 is operated at any time with a specific, predeterminable torque and thus leads to a largely constant web tension.
  • This moment can e.g. B. constant for short retraction paths, and for longer retraction paths, for example, along a predetermined curve.
  • the electric motor 17 can generally be controllable as a function of measurement data which are obtained during the pulling-in and which provide information about the progress and / or applied moments.
  • the pull-in means 12 can be driven by means of a synchronous drive 14 formed by two rollers including the pull-in means.
  • the synchronous drive 14 can also have a driven roller and a non-driven roller that can be set against it.
  • the coil former also has a motor which, however, does not have to be controllable in the same way as the aforementioned electric motor 17.
  • the electric motor 17 (dashed) is arranged to drive the synchronous drive 14 (dashed) and, as above, is regulated to a constant retraction speed or a constant or predeterminable torque.
  • the coil former 13 has a central axis on which one end of the pull-in center 12 is fixed.
  • lateral cheeks are provided at the ends of the central axis, on which the part of the pull-in center 12 wound onto the bobbin 13 is laterally supported.
  • the finite drawing-in means 12 can be unwound from the bobbins 13 and, depending on the position of the switches 16, which are only shown schematically, can be pushed through the printing machine 01 along different drawing-in paths.
  • the pull-in means 12 is guided by guide rails, not shown.
  • the drawing-in means 12 can be coupled to the beginning of the web of the respective paper web, so that the paper web is conveyed through the printing machine 01 by pulling back the drawing-in means 12 along the desired drawing-in path.
  • the regulation of the electric motor 17 driving the bobbin 13 according to the first exemplary embodiment can also be applied to devices for drawing in, wherein a finite drawing-in means 12 from a bobbin (not shown) in the area of the roll changer (s) 04; 06; 07 on a bobbin 13 behind the outlet of the printing units 02; 03 is rewound and vice versa.
  • the individual units for. B. the cylinders of the printing units individually or in pairs, the entire printing unit or the printing unit, the driven rollers of the paper guide, the folder, and possibly other rotatable parts the printing press each has its own drive motor.
  • the coordination or synchronization takes place with a so-called “virtual master axis” or “electronic shaft”, which electrically connects the regulation or control of the units to one another.
  • a regulation (or control) of the electric motor 17 for the synchronous drive 14 or the direct drive of the coil former 17 is electrically connected to this “virtual leading axis”, for example in such a way that a speed of the pull-in means approximately the respective surface speed of the web contacting units, e.g. the corresponding cylinder of the printing units 02; 03, the driven paper guide or drawing rollers (not shown), the roll changer 04; 06; 07 etc.
  • the corresponding speed or angular speed for the electric motor 17 of the synchronous drive 14 or the coil former 13 is determined in an electronic circuit or computing unit, possibly using a controllable frequency converter, and applied to the electric motor 17.
  • a, possibly constant, pull-in speed can also be specified, the other units, which relate to the pull-in process, being driven via the electronic shaft with a corresponding peripheral speed.
  • the change in the effective diameter must be superimposed on the desired or required retraction speed as described.
  • the exemplary embodiment for the regulation of the electric motor 17 with respect to a moment aims at limiting the load on the web or the connection between the web and the pulling means 04 during the pulling in.
  • the regulation takes place here in the case of a directly driven coil body 13, as already partially explained above, taking into account the changing diameter. This is taken into account, for example, in an electronic circuit or arithmetic unit by means of stored functions (for example depending on the revolutions or angles that have taken place or on the basis of the abovementioned measured values).
  • the angular velocity or rotational speed can be determined on the bobbin or on the electric motor 17 (e.g. by means of an incremental encoder), and, as in the above-mentioned example, the controls or regulations of other, individually driven units are specified via the electronic shaft after corresponding conversion.
  • the determination of the retraction speed can, however, also take place in a different way on the retraction path.

Abstract

The invention relates to a device (08, 09, 11) for drawing a web of material into a machine (01). Said device comprises a draw-in means (12), which can be advanced along a draw-in path and to which the web of material can be coupled. The draw-in means can be driven by means of an electric motor (17) that can be regulated or controlled according to measurement data, which is determined during the draw-in process, or in a manner that is synchronous to another unit of the machine that can be mechanically driven independent of the electric motor.

Description

Beschreibungdescription
Vorrichtungen zum Einziehen einer MaterialbahnDevices for pulling a web of material
Die Erfindung betrifft Vorrichtungen zum Einziehen einer Materialbahn in eine Arbeitsmaschine nach dem Oberbegriff der Ansprüche 1 , 5 oder 6.The invention relates to devices for pulling a web of material into a machine according to the preamble of claims 1, 5 or 6.
Derartige Vorrichtungen werden in Druckmaschinen eingesetzt, um den Bahnanfang der Materialbahn entlang des gewünschten Einziehweges durch die Druckmaschine durchzufördern. Dies ist beispielsweise beim Einzug für eine neue Produktion, oder immer dann erforderlich, wenn während des Druckvorgangs eine Materialbahn abgerissen ist, so dass der Bahnanfang der neuen Materialbahn nicht im Wege eines fliegenden Rollenwechsels durchgezogen werden kann. Außerdem können in modernen Druckmaschinen die Druckwerke entlang unterschiedlicher Förderwege durchfahren werden, um entsprechend unterschiedliche Druckergebnisse erzielen zu können, so dass bei einer Umrüstung die neue Materialbahn entlang des entsprechenden Einziehweges eingezogen werden muss.Devices of this type are used in printing presses in order to convey the beginning of the web of material along the desired drawing-in path through the printing press. This is necessary, for example, when moving in for a new production, or whenever a material web is torn off during the printing process, so that the beginning of the web of the new material web cannot be pulled through by means of a flying roll change. In addition, in modern printing presses, the printing units can be traversed along different conveying paths in order to be able to achieve correspondingly different printing results, so that when converting, the new material web must be drawn in along the corresponding feeding path.
Aus der DE 94 15 859 U1 ist eine Vorrichtung zum Einziehen einer Warenbahn in eine Behandlungsstation bekannt, bei der das bandförmig ausgebildete Einzugmittel von einer Wickelrolle am Einlauf der Behandlungsstation auf eine Wickelrolle am Auslauf der Behandlungsstation umgespult werden kann.From DE 94 15 859 U1 a device for pulling a web into a treatment station is known, in which the band-shaped pull-in means can be rewound from a winding roll at the inlet of the treatment station to a winding roll at the outlet of the treatment station.
Aus der DE 2241 127 A1 ist eine Vorrichtung zum Einziehen von Materialbahnen in Rotationsdruckmaschinen bekannt, bei der das in der Art eines Federstahlbandes ausgebildete Einzugmittel entlang verschiedener Einziehwege, zwischen denen mittels Weichen umgestellt werden kann, vom Auslauf der Druckmaschine her durchgeschoben werden kann. Der Antrieb des Einzugmitteis erfolgt dabei durch ein ortsfest angeordnetes Antriebsrad, das am Einzugmittel formschlüssig zum Eingriff kommt und das Einzugmittel entlang seiner gesamten Länge durch die Druckmaschine schiebt.From DE 2241 127 A1 a device for pulling material webs in rotary printing presses is known, in which the pulling-in means designed in the manner of a spring steel strip can be pushed through the outlet of the printing press along different pulling-in paths, between which it can be switched by means of switches. The pull-in means is driven by a fixedly arranged drive wheel, which comes into positive engagement with the pull-in means and the pull-in means through the printing press along its entire length.
Die EP 0418 903 A2 offenbart eine Vorrichtung zum Einziehen einer Materialbahn, wobei ein Einzugmittel durch einen Motor angetrieben ist, welcher in Abhängigkeit von beim Einziehvorgang ermittelten Meßdaten geregelt ist. Die Regelung erfolgt im Hinblick auf eine konstante Einziehgeschwindigkeit bzw. Drehzahl.EP 0418 903 A2 discloses a device for pulling in a material web, wherein a pulling-in means is driven by a motor which is regulated as a function of measurement data determined during the pulling-in process. The regulation takes place with regard to a constant retraction speed or speed.
Durch die DE 9409390 U1 ist eine Vorrichtung zum Einziehen einer Materialbahn offenbart, wobei ein Einzugmittel durch einen Schrittmotor angetrieben ist. Ein bereits durch das Einzugmittel zurückgelegter Transportweg wird mittels Sensoren erfaßt.DE 9409390 U1 discloses a device for pulling in a material web, a pulling means being driven by a stepper motor. A transport route already covered by the pull-in means is detected by means of sensors.
Der Erfindung liegt die Aufgabe zugrunde, Vorrichtungen zum Einziehen einer Materialbahn zu schaffen.The invention has for its object to provide devices for pulling a web of material.
Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1, 5 oder 6 gelöst.The object is achieved by the features of claims 1, 5 or 6.
Ein Vorteil der Erfindung liegt insbesondere darin, dass das flexibel und endlich ausgebildete Einzugmittel auf einem Spulenkörper aufgewickelt werden kann, so dass zur Speicherung des Teils des Einzugmitteis, der nicht in die Druckmaschine eingeschoben ist, nur ein geringer Platzbedarf erforderlich ist.An advantage of the invention is, in particular, that the flexible and finely designed pull-in means can be wound up on a spool, so that only a small amount of space is required to store the part of the pull-in means that is not inserted into the printing press.
Die Ausführung als endliches Einzugmittel, welches an einem Ende an einen Spulenkörper befestigt, und vollständig aufgewickelt werden kann, ist von großen Vorteil, dass hier im Gegensatz zu endlosen oder umspulbaren Einzugmitteln verschiedene Einzugswege über Weichen realisierbar sind.The design as a finite drawing-in means, which is fastened at one end to a bobbin and can be completely wound up, is of great advantage that, in contrast to endless or rewinding drawing-in means, different drawing-in paths can be realized via switches.
Der Antrieb des Einzugmitteis kann grundsätzlich auf beliebige Art und Weise gewährleistet werden. Nach einer bevorzugten Ausführungsform erfolgt der Antrieb des Einzugmitteis durch Antrieb des Spulenkörpers, der zum Auf- beziehungsweise Abwickeln des Einzugmitteis in zwei Drehrichtungen antreibbar ist. Ein separates Antriebsrad zum Antrieb des Einzugmitteis kann dadurch entfallen.The drive of the pull-in means can basically be guaranteed in any way. According to a preferred embodiment, the pulling-in means is carried out by driving the bobbin, which is used for winding or unwinding the Einzugmitteis can be driven in two directions. A separate drive wheel for driving the pull-in center can thus be dispensed with.
Zum Antrieb des Spulenkörpers wird vorzugsweise ein regelbarer Elektromotor eingesetzt, so dass der Spulenkörper geregelt mit unterschiedlichen Rotationsgeschwindigkeiten und/oder Drehmomenten angetrieben werden kann. Durch entsprechende Messung z. B. der Vorschubgeschwindigkeit des Einzugmitteis bzw. des anliegenden Momentes kann dann durch Regelung des Elektromotors eine konstante Fördergeschwindigkeit oder ein vergleichbares Moment am Einzugmittel eingeregelt werden. Der Elektromotor kann in anderer Ausführung jedoch auch entsprechend bzgl. einer Geschwindigkeit (z. B. Frequenz) oder eines Drehmomentes (Leistung) gesteuert sein.A controllable electric motor is preferably used to drive the coil former, so that the coil former can be driven in a controlled manner with different rotational speeds and / or torques. By appropriate measurement z. B. the feed rate of the Einzugmitteis or the applied moment can then be adjusted by controlling the electric motor, a constant conveying speed or a comparable torque on the feed means. In another embodiment, however, the electric motor can also be controlled in accordance with a speed (e.g. frequency) or a torque (power).
Zur Messung der Fördergeschwindigkeit des Einzugmitteis sind prinzipiell eine Vielzahl von Sensoren denkbar. Eine besonders einfache Bauart ergibt sich, wenn der wirksame Umfang des Spulenkörpers, mit dem das Einzugmittel abgespult wird und die Rotationsgeschwindigkeit des Spulenkörpers gemessen oder als Kurve vorgegeben wird. Mit wirksamen Umfang des Spulenkörpers wird dabei der Wert verstanden, der sich aus dem Umfang des Spulenkörpers selbst und dem Umfang der darauf noch aufgewickelten Lagen des Einzugmitteis ergibt. Durch Auswertung dieser beiden Messwerte kann in einfacher Weise die linear gerichtete Vorschubgeschwindigkeit des Einzugmitteis festgestellt und anschließend durch entsprechende Regelung der Rotationsgeschwindigkeit des Spulenkörpers auf einen Sollwert geregelt werden. Auch eine entsprechende, in der Software als Steuerkurve hinterlegte Abhängigkeit der Solldrehzahl von der Anzahl der erfolgten Umdrehungen ist denkbar.In principle, a large number of sensors are conceivable for measuring the conveying speed of the feed means. A particularly simple design results if the effective circumference of the coil body with which the pull-in means is unwound and the rotational speed of the coil body is measured or specified as a curve. The effective circumference of the coil body is understood to mean the value that results from the circumference of the coil body itself and the size of the layers of the pull-in means still wound thereon. By evaluating these two measured values, the linearly directed feed speed of the pull-in center can be determined in a simple manner and can then be regulated to a desired value by corresponding regulation of the speed of rotation of the bobbin. A corresponding dependency of the target speed on the number of revolutions that is stored in the software as a control curve is also conceivable.
In dem Einzugmittel müssen beim Durchschieben durch die Druckmaschine erhebliche Druckspannungen übertragen werden, um die Reibungskräfte in den Führungen zu überwinden. Das Einzugmittel kann deshalb vorzugsweise in der Art eines Stahlbandes, insbesondere eines Federstahlbandes ausgebildet sein, da Stahlbänder eine hohe Flexibilität aufweisen und zugleich hohe Zug- beziehungsweise Druckspannungen übertragen können. Selbstverständlich ist aber auch die Nutzung von bekannten Kunststoffbändern, Ketten oder entsprechend ausgeführten Seilen möglich.When pushing through the printing press, considerable compressive stresses have to be transmitted in the pull-in means in order to overcome the frictional forces in the guides. The feed means can therefore preferably be in the form of a steel strip, in particular a spring steel strip, since steel strips have a high degree of flexibility and at the same time can transmit high tensile or compressive stresses. Of course, the use of known plastic straps, chains or appropriately designed ropes is also possible.
Um die am Einzugmittel auftretenden Reibungskräfte, die durch die Antriebseinrichtung überwunden werden müssen, nach Möglichkeit zu vermindern, kann das Einzugmittel zumindest bereichsweise mit einer reibungsvermindemden Schicht ummantelt sein. Beispielsweise ist es möglich, ein Einzugmittel aus Stahlband mit einer Kunststoffschicht zu ummanteln, um dadurch die Werkstoffeigenschaften des Stahlbandes mit hoher Zugbeziehungsweise Druckfestigkeit mit den gewünschten reibungsarmen Werkstoffeigenschaften des Kunststoffes zu kombinieren.In order to reduce, as far as possible, the frictional forces that occur on the pull-in means, which have to be overcome by the drive device, the pull-in means can be covered at least in regions with a friction-reducing layer. For example, it is possible to encase a steel strip pull-in means with a plastic layer, in order to thereby combine the material properties of the steel strip with high tensile or compressive strength with the desired low-friction material properties of the plastic.
Eine Ausführungsform der Erfindung wird nachfolgend in der Zeichnung dargestellt und wird näher beschrieben. Es zeigt eine Druckmaschine mit einer Vorrichtung zum Einziehen einer Materialbahn in einem schematisch dargestellten Querschnitt.An embodiment of the invention is shown below in the drawing and will be described in more detail. It shows a printing press with a device for drawing in a material web in a schematically illustrated cross section.
In eine Arbeitsmaschine 01, z. B. eine Druckmaschine 01, zur Behandlung von Materialbahnen, z. B. von Papierbahnen, ist zwecks Einziehens eines Anfanges der Materialbahn eine Vorrichtung 08; 09; 11 zum Einziehen vorgesehen.In a work machine 01, for. B. a printing machine 01, for the treatment of material webs, for. B. of paper webs, a device 08; 09; 11 provided for retraction.
Die in der Zeichnung im Querschnitt dargestellte Druckmaschine 01 weist zwei Druckeinheiten 02; 03 mit jeweils zwei Doppel-Druckwerken bzw. vier Druckwerken sowie drei Rollenwechsler 04; 06; 07 auf.The printing press 01 shown in cross section in the drawing has two printing units 02; 03 with two double printing units or four printing units and three reelstands 04; 06; 07 on.
Hinter dem Auslauf der Druckeinheiten 02; 03 sind drei Vorrichtungen 08; 09; 11 zum Einziehen einer Materialbahn in die Druckmaschine 01 angeordnet. Die Vorrichtungen 08; 09; 11 bestehen jeweils aus einem in der Art eines Federstahlbandes 12 ausgebildeten Einzugmitteis 12, das auf einem rotationssymmetrisch ausgebildeten Spulenkörper 13 aufgewickelt werden kann.Behind the outlet of the printing units 02; 03 are three devices 08; 09; 11 arranged for pulling a web of material into the printing press 01. The devices 08; 09; 11 each consist of a pull-in center 12 designed in the manner of a spring steel strip 12, which is mounted on a rotationally symmetrical bobbin 13 can be wound up.
In einem ersten Ausführungsbeispiel wird der Spulenkörper 13 mittels eines Motors 17, z. B. eines Elektromotors 17 (nur für den oberen Spulenkörper 13 dargestellt), insbesondere mittels eines regelbaren Wechselstrommotors 17 mit Frequenzumrichter, angetrieben. Die Regelung erfolgt in der Weise, dass mit sich änderndem Spulenradius die Drehzahl so geändert wird, dass eine nahezu zeitlich konstante Einziehgeschwindigkeit vorliegt.In a first embodiment, the bobbin 13 is by means of a motor 17, for. B. an electric motor 17 (shown only for the upper bobbin 13), in particular by means of a controllable AC motor 17 with frequency converter. The control takes place in such a way that the speed is changed with a changing coil radius in such a way that the retraction speed is almost constant over time.
Die Regelung kann in einer anderen Betriebsweise auch so erfolgen, dass der Elektromotor 17 zu jeder Zeit mit einem bestimmten, vorgebbaren Moment betrieben wird und so zu einem weitgehend konstanten Bahnzug führt. Dieses Moment kann, z. B. für kurze Einziehwege konstant, und für längere Einziehwege beispielsweise entlang einer vorgebbaren Kurve erfolgen.In another operating mode, the regulation can also take place in such a way that the electric motor 17 is operated at any time with a specific, predeterminable torque and thus leads to a largely constant web tension. This moment can e.g. B. constant for short retraction paths, and for longer retraction paths, for example, along a predetermined curve.
Der Elektromotor 17 kann in allgemeinerweise in Abhängigkeit von Messdaten regelbar sein, welche während des Einziehens gewonnen werden und Informationen über den Fortschritt und/oder anliegende Momente liefern.The electric motor 17 can generally be controllable as a function of measurement data which are obtained during the pulling-in and which provide information about the progress and / or applied moments.
In einem zweiten Ausführungsbeispiel (strichliert dargestellt) ist das Einzugsmittel 12 mittels eines von zwei das Einzugmittel einschließenden Walzen gebildeten Synchronantriebs 14 antreibbar. Der Synchronantrieb 14 kann auch eine angetriebene und eine gegen diese anstellbare, ungetriebene Walze aufweisen. Auch der Spulenkörper weist einen Motor auf, welche jedoch nicht in der Weise wie der vorgenannte Elektromotor 17 regelbar sein muss.In a second exemplary embodiment (shown in broken lines), the pull-in means 12 can be driven by means of a synchronous drive 14 formed by two rollers including the pull-in means. The synchronous drive 14 can also have a driven roller and a non-driven roller that can be set against it. The coil former also has a motor which, however, does not have to be controllable in the same way as the aforementioned electric motor 17.
Hierbei ist der Elektromotor 17 (strichliert) den Synchronantrieb 14 (strichliert) antreibend angeordnet und wird wie oben auf eine konstante Einziehgeschwindigkeit oder ein konstantes bzw. vorgebbares Moment geregelt. Der Spulenkörper 13 weist in beiden Beispielen eine Mittelachse auf, an der das eine Ende des Einzugmitteis 12 festgelegt ist. Außerdem sind an den Enden der Mittelachse seitliche Wangen vorgesehen, an denen der auf den Spulenkörper 13 aufgewickelte Teil des Einzugmitteis 12 seitlich abgestützt wird.Here, the electric motor 17 (dashed) is arranged to drive the synchronous drive 14 (dashed) and, as above, is regulated to a constant retraction speed or a constant or predeterminable torque. In both examples, the coil former 13 has a central axis on which one end of the pull-in center 12 is fixed. In addition, lateral cheeks are provided at the ends of the central axis, on which the part of the pull-in center 12 wound onto the bobbin 13 is laterally supported.
Auch kann hinter dem Auslauf der Druckeinheiten 02; 03 nur eine einzige Vorrichtung 08; 09; 11 zum Einziehen angeordnet sein, wobei eine Wahl des Einzugsweges durch die Anordnung nicht dargestellter Weichen realisierbar ist.Also behind the outlet of the printing units 02; 03 only one device 08; 09; 11 can be arranged for drawing in, wherein a choice of the drawing-in path can be realized by the arrangement of switches, not shown.
Durch Antrieb der Spulenkörper 13 im Uhrzeigersinn können die endlichen Einzugmittel 12 von den Spulkörpern 13 abgewickelt und je nach Stellung der lediglich schematisch dargestellten Weichen 16 entlang unterschiedlicher Einziehwege durch die Druckmaschine 01 durchgeschoben werden. Das Einzugmittel 12 wird dabei von nicht dargestellten Führungsschienen geführt. Im Bereich des Einlaufes in die Druckmaschine 01 an den Rollenwechslern 04; 06 beziehungsweise 07 kann das Einzugmittel 12 mit dem Bahnanfang der jeweiligen Papierbahn gekoppelt werden, so dass die Papierbahn durch das Zurückziehen des Einzugmitteis 12 entlang des gewünschten Einziehweges durch die Druckmaschine 01 durchgefördert wird.By driving the bobbins 13 clockwise, the finite drawing-in means 12 can be unwound from the bobbins 13 and, depending on the position of the switches 16, which are only shown schematically, can be pushed through the printing machine 01 along different drawing-in paths. The pull-in means 12 is guided by guide rails, not shown. In the area of the entry into the printing press 01 on the roll changers 04; 06 or 07, the drawing-in means 12 can be coupled to the beginning of the web of the respective paper web, so that the paper web is conveyed through the printing machine 01 by pulling back the drawing-in means 12 along the desired drawing-in path.
Die Regelung des den Spulenkörper 13 antreibenden Elektromotors 17 gemäß dem ersten Ausführungsbeispiel, ist ebenso auf Vorrichtungen zum Einziehen anwendbar, wobei ein endliches Einzugmittel 12 von einem nicht dargestellten Spulenkörper im Bereich des bzw. der Rollenwechsler 04; 06; 07 auf einen Spulenkörper 13 hinter dem Auslauf der Druckeinheiten 02; 03 umgespult wird und umgekehrt.The regulation of the electric motor 17 driving the bobbin 13 according to the first exemplary embodiment can also be applied to devices for drawing in, wherein a finite drawing-in means 12 from a bobbin (not shown) in the area of the roll changer (s) 04; 06; 07 on a bobbin 13 behind the outlet of the printing units 02; 03 is rewound and vice versa.
In vorteilhafter Ausführung weisen die einzelnen Aggregate, z. B. die Zylinder der Druckwerke einzeln oder paarweise, das gesamte Druckwerk oder die Druckeinheit, die angetriebenen Walzen der Papierführung, der Falzapparat, u.U. weitere drehbare Teile der Druckmaschine jeweils einen eigenen Antriebsmotor auf. Die Abstimmung bzw. Synchronisierung erfolgt mit einer sog. „virtuellen Leitachse" bzw. „elektronischen Welle", welche die Regelung bzw. Steuerung der Aggregate elektrisch miteinander verbindet. Eine Regelung (oder Steuerung) des Elektromotors 17 für den Synchronantrieb 14 oder den direkten Antrieb des Spulenkörpers 17 ist mit dieser „virtuellen Leitachse" z. B. in der Weise elektrisch verbunden, dass eine Geschwindigkeit des Einzugmitteis in etwa der jeweiligen Oberflächengeschwindigkeit der die Bahn berührenden Aggregate, z. B. der entsprechenden Zylinder der Druckeinheiten 02; 03, der angetriebenen Papierleit- oder Zugwalzen (nicht dargestellt), dem Rollenwechsler 04; 06; 07 etc. entspricht.In an advantageous embodiment, the individual units, for. B. the cylinders of the printing units individually or in pairs, the entire printing unit or the printing unit, the driven rollers of the paper guide, the folder, and possibly other rotatable parts the printing press each has its own drive motor. The coordination or synchronization takes place with a so-called “virtual master axis” or “electronic shaft”, which electrically connects the regulation or control of the units to one another. A regulation (or control) of the electric motor 17 for the synchronous drive 14 or the direct drive of the coil former 17 is electrically connected to this “virtual leading axis”, for example in such a way that a speed of the pull-in means approximately the respective surface speed of the web contacting units, e.g. the corresponding cylinder of the printing units 02; 03, the driven paper guide or drawing rollers (not shown), the roll changer 04; 06; 07 etc.
Hierzu wird in einer elektronischen Schaltung oder Recheneinheit, ggf. unter Verwendung eines regelbaren Frequenzumrichters, die entsprechende Drehzahl bzw. Winkelgeschwindigkeit für den Elektromotor 17 des Synchronantriebes 14 bzw. des Spulenkörpers 13 ermittelt und dem Elektromotor 17 beaufschlagt. In umgekehrte Weise kann auch eine, ggf. konstante, Einziehgeschwindigkeit vorgegeben werden, wobei über die elektronische Welle die übrigen, den Einziehvorgang betreffenden Aggregate mit entsprechender Umfangsgeschwindigkeit angetrieben werden. Im Fall des direkten Antriebes des Spulenkörpers 13 ist der gewünschten oder erforderlichen Einziehgeschwindigkeit wie beschrieben die Änderung des wirksamen Durchmessers zu überlagern.For this purpose, the corresponding speed or angular speed for the electric motor 17 of the synchronous drive 14 or the coil former 13 is determined in an electronic circuit or computing unit, possibly using a controllable frequency converter, and applied to the electric motor 17. Conversely, a, possibly constant, pull-in speed can also be specified, the other units, which relate to the pull-in process, being driven via the electronic shaft with a corresponding peripheral speed. In the case of direct drive of the bobbin 13, the change in the effective diameter must be superimposed on the desired or required retraction speed as described.
Das Ausführungsbeispiel für die Regelung des Elektromotors 17 bezüglich eines Momentes zielt auf eine Begrenzung der Belastung der Bahn bzw. der Verbindung zwischen Bahn und Einzugmittel 04 während des Einziehens. Die Regelung erfolgt hier im Fall eines direkt angetriebenen Spulenkörpers 13, wie oben bereits teilweise dargelegt, unter Berücksichtigung des sich ändernden Durchmessers. Diese Berücksichtigung erfolgt beispielsweise in einer elektronischen Schaltung oder Recheneinheit durch hinterlegte Funktionen (z. B. in Abhängigkeit der erfolgten Umdrehungen bzw. Winkel) oder anhand der o.g. Messwerte). Zusätzlich kann über gemessene oder in anderer Weise (z. B. über die erfolgten Umdrehungen bzw. Winkel) ermittelte Informationen über den erfolgten und/oder verbleibenden Einziehweg eine Überlagerung eines zur Überwindung der Reibung erforderlichen Momentes erfolgen.The exemplary embodiment for the regulation of the electric motor 17 with respect to a moment aims at limiting the load on the web or the connection between the web and the pulling means 04 during the pulling in. The regulation takes place here in the case of a directly driven coil body 13, as already partially explained above, taking into account the changing diameter. This is taken into account, for example, in an electronic circuit or arithmetic unit by means of stored functions (for example depending on the revolutions or angles that have taken place or on the basis of the abovementioned measured values). In addition, can be measured or in other Information (e.g. about the revolutions or angles that have been determined) about the retraction path that has taken place and / or remains is superimposed on a torque that is required to overcome the friction.
Am Spulenkörper oder am Elektromotor 17 (z. B. durch Inkrementalgeber) kann die Winkelgeschwindigkeit bzw. Drehzahl ermittelt werden, und wie im vorgenannten Beispiel nach entsprechender Umrechnung über die elektronische Welle den Steuerungen bzw. Regelungen anderer, einzeln angetriebener Aggregate vorgegeben werde. Die Ermittlung der Einziehgeschwindigkeit kann jedoch auch auf dem Einziehweg in anderer Weise erfolgen. The angular velocity or rotational speed can be determined on the bobbin or on the electric motor 17 (e.g. by means of an incremental encoder), and, as in the above-mentioned example, the controls or regulations of other, individually driven units are specified via the electronic shaft after corresponding conversion. The determination of the retraction speed can, however, also take place in a different way on the retraction path.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
01 Arbeitsmaschine, Druckmaschine01 work machine, printing machine
02 Druckwerk02 printing unit
03 Druckwerk03 printing unit
04 Rollenwechsler04 reel changer
05 -05 -
06 Rollenwechsler06 reel changer
07 Rollenwechsler07 reel changer
08 Vorrichtung08 device
09 Vorrichtung09 device
10 -10 -
11 Vorrichtung11 device
12 Einzugmittel, Federstahlband12 feed means, spring steel strip
13 Spulenkörper13 bobbin
14 Synchronantrieb14 synchronous drive
15 -15 -
16 Weiche16 points
17 Motor, Elektromotor, Wechselstrommotor 17 Motor, electric motor, AC motor

Claims

Ansprüche Expectations
1. Vorrichtung (08; 09; 11) zum Einziehen einer Materialbahn in eine Arbeitsmaschine (01) mit einem entlang eines Einziehweges förderbaren Einzugmittel (12), an welches die Materialbahn koppelbar und welches mittels eines Elektromotors (17) mechanisch unabhängig von mindestens einem anderen Aggregat der Arbeitsmaschine antreibbar ist, dadurch gekennzeichnet, dass der das Einzugmittel (12) antreibende Elektromotor (17) und ein Antrieb des mindestens einen mechanisch unabhängigen Aggregates relativ zueinander geregelt oder gesteuert sind.1. Device (08; 09; 11) for pulling a material web into a working machine (01) with a feed means (12) which can be conveyed along a feed path, to which the material web can be coupled and which is mechanically independent of at least one other by means of an electric motor (17) Unit of the working machine can be driven, characterized in that the electric motor (17) driving the pull-in means (12) and a drive of the at least one mechanically independent unit are regulated or controlled relative to one another.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass der das Einzugmittel (12) antreibende Elektromotor (17) in Abhängigkeit von beim Einziehvorgang ermittelten Meßdaten regelbar ist.2. Device according to claim 1, characterized in that the electric motor (17) driving the pull-in means (12) can be regulated as a function of measurement data determined during the pull-in process.
3. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass der Elektromotor (17) in Abhängigkeit einer Fördergeschwindigkeit des Einzugmitteis (12) regelbar ist.3. Device according to claim 1, characterized in that the electric motor (17) is controllable as a function of a conveying speed of the feed means (12).
4. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass der Elektromotor (17) bezüglich eines am Elektromotor ( 2) anliegenden, vorgebbaren Momentes geregelt ist.4. The device according to claim 1, characterized in that the electric motor (17) is regulated with respect to a predetermined torque applied to the electric motor (2).
5. Vorrichtung (08; 09; 11) zum Einziehen einer Materialbahn in eine Arbeitsmaschine (01) mit einem Einzugmittel (12), welches mittels eines Elektromotors (17) entlang eines Einziehweges antreibbar ist, dadurch gekennzeichnet, dass der das Einzugmittel (12) antreibende Elektromotor (17) bezüglich eines am Elektromotor (12) anliegenden, vorgebbaren Momentes geregelt ist.5. Device (08; 09; 11) for pulling a material web into a working machine (01) with a pull-in means (12) which can be driven along a pull-in path by means of an electric motor (17), characterized in that the pull-in means (12) driving electric motor (17) is regulated with respect to a predetermined torque applied to the electric motor (12).
6. Vorrichtung (08; 09; 11) zum Einziehen einer Materialbahn in eine Arbeitsmaschine (01) mit einem Einzugmittel (12), welches mittels eines Elektromotors (17) entlang eines Einziehweges antreibbar ist, wobei der Elektromotor (17) in Abhängigkeit einer Fördergeschwindigkeit des Einzugmitteis (12) regelbar und unabhängig von mindestens einem anderen Aggregat der Arbeitsmaschine antreibbar ist, dadurch gekennzeichnet, dass der das Einzugmittel (12) antreibende Elektromotor (17) und ein Antrieb des mindestens einen mechanisch unabhängigen Aggregates relativ zueinander geregelt oder gesteuert sind.6. Device (08; 09; 11) for pulling a material web into a working machine (01) with a pulling-in means (12), which is run along by means of an electric motor (17) of a pull-in path, the electric motor (17) being controllable as a function of a conveying speed of the pull-in means (12) and being drivable independently of at least one other unit of the working machine, characterized in that the electric motor (17) driving the pull-in means (12) and a Drive of the at least one mechanically independent unit are regulated or controlled relative to each other.
7. Vorrichtung nach Anspruch 1 , 5, oder 6, dadurch gekennzeichnet, dass der Elektromotor (17) einen Spulenkörper (13) antreibt, an welchem ein Ende des Einzugmitteis (12) befestigt, und Einzugmitteis (12) aufwickelbar ist.7. The device according to claim 1, 5, or 6, characterized in that the electric motor (17) drives a bobbin (13) to which one end of the Einzugmitteis (12) attached, and Einzugmitteis (12) can be wound up.
8. Vorrichtung nach Anspruch 1 , 5, oder 6, dadurch gekennzeichnet, dass der Elektromotor (17) mindestens eine Walze eines zwei gegeneinander anstellbare Walzen aufweisenden Synchronantriebes (14) antreibt.8. The device according to claim 1, 5 or 6, characterized in that the electric motor (17) drives at least one roller of a synchronous drive (14) having two mutually adjustable rollers.
9. Vorrichtung nach Anspruch 1 , 5 oder 6, dadurch gekennzeichnet, dass das Einzugmittel (12) flexibel und endlich ausgeführt ist.9. The device according to claim 1, 5 or 6, characterized in that the pull-in means (12) is flexible and finally executed.
10. Vorrichtung nach Anspruch 1 , 5 oder 6, dadurch gekennzeichnet, dass an ein erstes Ende des Einzugmitteis (12) die Materialbahn koppelbar ist und das zweite Ende des Einzugmitteis (12) an einem Spulenkörper (13) befestigt und auf den Spulenkörper (13) aufwickelbar ist.10. The device according to claim 1, 5 or 6, characterized in that the material web can be coupled to a first end of the Einzugmitteis (12) and the second end of the Einzugmitteis (12) attached to a bobbin (13) and on the bobbin (13 ) can be wound up.
11. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Elektromotor (17) in Abhängigkeit von einem wirksamen Umfang des Spulenkörpers (13) mit einem Moment beaufschlagt ist. 11. The device according to claim 7, characterized in that the electric motor (17) is acted upon as a function of an effective circumference of the coil former (13).
12. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Elektromotor (17) in Abhängigkeit von einem wirksamen Umfang des Spulenkörpers (13) mit einer Winkelgeschwindigkeit bzw. Drehzahl beaufschlagt ist.12. The device according to claim 7, characterized in that the electric motor (17) is acted upon as a function of an effective circumference of the coil former (13) with an angular velocity or speed.
13. Vorrichtung nach Anspruch 1, 5 oder 6, dadurch gekennzeichnet, dass der Elektromotor (17) in Abhängigkeit von die Lage und/oder Geschwindigkeiten des Einzugmitteis (04) definierenden Meßdaten mit einem Moment beaufschlagt ist.13. The apparatus of claim 1, 5 or 6, characterized in that the electric motor (17) depending on the position and / or speeds of the Einzugmitteis (04) defining a moment is applied.
14. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass die Fördergeschwindigkeit des Einzugmitteis (12) im wesentlichen konstant gehalten ist.14. The apparatus according to claim 1 or 6, characterized in that the conveying speed of the Einzugmitteis (12) is kept substantially constant.
15. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass die Fördergeschwindigkeit des Einzugmitteis (12) mit zumindest einem Sensor mittelbar oder unmittelbar messbar und durch Regelung des Elektromotors in Abhängigkeit des Messergebnisses auf einen Sollwert geregelt ist.15. The apparatus of claim 1 or 6, characterized in that the conveying speed of the Einzugmitteis (12) with at least one sensor directly or indirectly measurable and is regulated by regulating the electric motor depending on the measurement result to a setpoint.
16. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass ein oder mehrere Zylinder eines Druckwerkes mechanisch unabhängig vom Elektromotor (17) angetrieben und in Abhängigkeit von einer Drehzahl des Elektromotors (17) oder einer Geschwindigkeit des Einzugmitteis angetrieben ist bzw. sind.16. The apparatus according to claim 1 or 6, characterized in that one or more cylinders of a printing unit is mechanically driven independently of the electric motor (17) and is driven as a function of a speed of the electric motor (17) or a speed of the Einzugmitteis.
17. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass eine oder mehrere Walzen mechanisch unabhängig vom Elektromotor (17) angetrieben und in Abhängigkeit von einer Drehzahl des Elektromotors (17) oder einer Geschwindigkeit des Einzugmitteis angetrieben ist bzw. sind.17. The apparatus according to claim 1 or 6, characterized in that one or more rollers are mechanically driven independently of the electric motor (17) and driven as a function of a speed of the electric motor (17) or a speed of the Einzugmitteis.
18. Vorrichtung nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass eine Drehzahl einer mechanisch unabhängigen Walze oder eines Zylinders und eine Drehzahl des Elektromotors (17) über eine virtuelle elektronischen Leitachse korreliert zueinander festgelegt ist.18. The apparatus of claim 1 or 6, characterized in that a speed of a mechanically independent roller or a cylinder and a speed of Electric motor (17) is fixed correlated to one another via a virtual electronic guide axis.
19. Vorrichtung nach Anspruch 1 , 5 oder 6, dadurch gekennzeichnet, dass der Elektromotor (17) als ein mittels Frequenzumrichtung geregelter Wechselstrommotor (17) ausgeführt ist.19. The apparatus of claim 1, 5 or 6, characterized in that the electric motor (17) is designed as an AC motor (17) controlled by frequency conversion.
20. Vorrichtung nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass zur mittelbaren Bestimmung der Fördergeschwindigkeit des Einzugmitteis (12) der wirksame Umfang und die Rotationsgeschwindigkeit des Spulenkörpers (13) gemessen wird.20. The apparatus according to claim 14 or 15, characterized in that for the indirect determination of the conveying speed of the feed means (12), the effective circumference and the rotational speed of the bobbin (13) is measured.
21. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Antriebsmoment des Synchronantriebs (14) im wesentlichen schlupffrei auf das Einzugmittel (12) übertragbar ist.21. The apparatus according to claim 8, characterized in that the drive torque of the synchronous drive (14) is substantially slip-free to the pull-in means (12).
22. Vorrichtung nach Anspruch 1 , 5 oder 6, dadurch gekennzeichnet, dass zur Führung des Einzugmitteis (12) entlang des Einziehwegs zumindest ein Führungselement vorgesehen ist, welches das Einzugmittel (12) auf dem Einziehweg hält.22. The apparatus of claim 1, 5 or 6, characterized in that at least one guide element is provided for guiding the pull-in means (12) along the pull-in path, which holds the pull-in means (12) on the pull-in path.
23. Vorrichtung nach Anspruch 1 , 5 oder 6, dadurch gekennzeichnet, dass das Einzugmittel (12) als Stahlband, insbesondere als Federstahlband (12), ausgebildet ist. 23. The device according to claim 1, 5 or 6, characterized in that the pulling means (12) is designed as a steel band, in particular as a spring steel band (12).
EP02740311A 2001-05-05 2002-05-02 Device for drawing in a web of material Expired - Lifetime EP1386035B1 (en)

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DE10121945 2001-05-05
DE10121945A DE10121945B4 (en) 2001-05-05 2001-05-05 Device for drawing in a material web
PCT/DE2002/001590 WO2002090650A2 (en) 2001-05-05 2002-05-02 Devices for drawing in a web of material

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WO2002090650B1 (en) 2003-03-27
DE10121945B4 (en) 2007-04-05
DE10121945A1 (en) 2002-11-14
EP1386035B1 (en) 2008-03-26
US7243827B2 (en) 2007-07-17
ATE390513T1 (en) 2008-04-15
WO2002090650A2 (en) 2002-11-14
DE50211967D1 (en) 2008-05-08
WO2002090650A3 (en) 2003-02-13

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