EP1713641B1 - Method and device for threading a web - Google Patents

Method and device for threading a web Download PDF

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Publication number
EP1713641B1
EP1713641B1 EP05707769.5A EP05707769A EP1713641B1 EP 1713641 B1 EP1713641 B1 EP 1713641B1 EP 05707769 A EP05707769 A EP 05707769A EP 1713641 B1 EP1713641 B1 EP 1713641B1
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EP
European Patent Office
Prior art keywords
motor
threading
web
speed
drive
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.)
Not-in-force
Application number
EP05707769.5A
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German (de)
French (fr)
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EP1713641A1 (en
Inventor
Wolfgang Fischer
Julius Adolf Josef Hauck
Arnold Paul Alfred Michel
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
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Koenig and Bauer AG
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Publication of EP1713641A1 publication Critical patent/EP1713641A1/en
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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
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/32—Torque e.g. braking torque
    • 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 a method and a device for drawing in a material web according to the preamble of claims 1 and 17, respectively
  • Such devices are used in printing machines to promote the web start of the web along the desired Einziehweges by the printing press. This is for example when moving in for a new production, or whenever necessary when a web of material is torn off during the printing process, so that the web start of the new material web can not be pulled through a flying reel 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 retrofitting the new material web has to be drawn along the corresponding drawing-in path.
  • a device for drawing a web into a treatment station in which the ribbon-shaped catch means can be rewound from a winding roll at the inlet of the treatment station on a winding roll at the outlet of the treatment station.
  • the two winding rollers each have a drive in one embodiment.
  • DE 197 24 123 A1 shows in one embodiment, a finite catchment means, which can be rewound between two each driven bobbins.
  • From the DE 22 41 127 A1 is a device for drawing webs in Rotary printing machines known in which the trained in the manner of a spring steel strip catching means along different Einziehwege, between which can be converted by means of switches, can be pushed from the outlet of the printing machine ago.
  • the drive of the retraction means is effected by a stationary arranged drive wheel, which comes form-fitting engagement on the retraction means and pushes the retraction means along its entire length through the printing press.
  • the EP 04 18 903 A2 discloses a device for drawing in a material web, wherein a pulling-in means is driven by a motor which is regulated as a function of measured data determined during the pulling-in process. The regulation takes place with regard to a constant retraction speed or speed.
  • DE 94 09 390 U1 discloses a device for retraction of a material web, wherein a pulling-in means is driven by a stepper motor. A already traveled by the collection means transport path is detected by sensors.
  • WO 02/090 650 A2 From the WO 02/090 650 A2 are known devices for pulling a web, wherein a finite catch means is driven by means of a drive in the region of a delivery area for the web.
  • a finite catch means is driven by means of a drive in the region of a delivery area for the web.
  • this drive st with respect to a speed - possibly correlated with an independently driven unit of the machine, and regulated in the second variant with respect to a torque.
  • the invention has for its object to provide a method and apparatus for drawing a web.
  • An advantage of the invention is in particular that a faster and safer starting of the machine can be done after the move.
  • the feeding takes place Here, despite the possibility of high retraction speeds simultaneously very gentle on materials.
  • the catching means can in principle be infinite, d. H. as a closed band-shaped material, be executed, which is conveyed via a driven roller in the region of an initial of the Einziehweges and a roller in the region of one end of the Einziehweges.
  • the pulling-in means is finally designed, with its ends respectively arranged on a bobbin, and can be rewound from a bobbin in the region of an initiation of the draw-in path onto a bobbin in the region of the end of the draw-in path and vice versa.
  • both ends always remain in contact with the respective bobbin.
  • the drive of the pulling-in means is carried out by driving a respective bobbin in the region of the retraction start and end.
  • these drives for winding or unwinding of the catchment means can be driven in two directions of rotation.
  • a controllable electric motor is used, so that the bobbin can be controlled with different rotational speeds and / or torques driven.
  • the drives of both bobbins are designed to be controllable with respect to the rotational speed and / or the applied torque.
  • the feed can be determined and regulated by controlling the electric motor, a constant conveying speed at the feed means.
  • the applied torque eg electrical power
  • the applied torque can be determined and a specific torque can be set or a maximum moment to be monitored.
  • the respective electric motor is accordingly controlled with respect to a speed (eg frequency) or a torque (power).
  • such a procedure and device is operatively connected to a machine control and / or a web tension control provided for operation. That is, it can already by the correct retraction of the web i. V. m. a basic setting for the web tension influencing aggregates -. B. dancer rollers - a ready machine are created.
  • a printing press 01 for treating a web or web, z.
  • a device for retraction is provided for the purpose of drawing a beginning of the web in the machine 01, by means of which a beginning of the web from a beginning of the Einziehweges is conveyed to one end of the Einziehweges. Possibly. A manual way can continue through the machine before or after this machine feed path.
  • the printing machine 01 which is shown only schematically in the drawing, has, by way of example, an assembly 02 embodied as printing unit 02, here with two double printing units or four printing units, and an aggregate 03 and former 04 formed as a reel splicer 03. At the former 04 closes as Folder 05 trained, the web further processing unit 05 at.
  • the web not shown, runs from the roll changer 03 through one or more printing units 02, possibly via a superstructure, not shown, with a longitudinal cutting device and a turning deck over the former 04.
  • a device for drawing in is provided provided provided the material web.
  • the device has in an advantageous first embodiment in a front region of the machine in which a train to be retracted with a catchment 06 is connectable - in the following recording area called - and in a rear area in which the retracted web is detached from the collection means 06 - in the following delivery area - each a bobbin 07; 08, on which the collection means 06 wound up or unwound from this.
  • the catchment means 06 is endless, d. H. as a loop, running, which instead of bobbins 07; 08 to be wound in the receiving and dispensing area a transport roller or roller rotates.
  • transport rollers are preferably in the manner of the spool 07 described in more detail below; 08 driven by speed or torque driven or regulated. To reduce slippage, for example, they can cooperate with pressure rollers or rollers.
  • the receiving area is preferably in the vicinity of the roll changer 03, so that the web can be guided directly after unwinding from the roll by the draw-in means 06.
  • the delivery area can in principle be arranged at any point of the track path to behind the former 04.
  • the delivery area and thus the bobbin 07 are arranged after the (last) continuous printing unit 02, but before the former 04. If turner bars are arranged in the superstructure, then the dispensing area may possibly still be located in front of these turner bars in the web path, if the guide for the feed means 06 and the train is not designed to bypass the turning bars.
  • the entire web is fed straight ahead to the former 04 and only when this train is retracted the knife is placed in the superstructure and retracted the new sub-web on the turning bar.
  • the delivery area is just before the funnel inlet.
  • the bobbin 07 in the delivery area by means of a motor 11 having a drive, for. B. an electric motor 11, in particular by means of an at least. Its speed controllable AC motor 11, driven.
  • a control of the motor 11 is carried out by using a setpoint input an internal control loop of the drive a setpoint ⁇ soll for the speed or frequency, ie ultimately, taking into account the winding radius, the winding or unwinding of the pulling-06.
  • a drive controller not shown.
  • the setpoint speed Frequenz soll for the speed or frequency, which ultimately represents the pull-in speed, is predetermined by the motor 11 or its drive control by a control device 12.
  • This control device 12 has, for example, a frequency converter 13 and a control and / or computing unit 14, in particular a servo-control unit 14, for. B. executed as a servo PLC 14.
  • the setpoint frequency is then determined in a logic integrated in the servo PLC 14 (or an additional logical component) and provided by the frequency converter 13 for the motor 11.
  • the Einzieh Anthony v soll for example, via an input medium or a corresponding interface of the control device 12, the control device 12 can be specified directly and manually.
  • the setting of the draw-in takes place v to a higher-level control device 16, for. This ensures the synchronization between the speed of movement of the retraction means 06 and at least components or units 02; 03; 05 of the printing machine O1 which interact with the web to be collected, for example, physical contact.
  • a rotary drive 17 of the printing unit 02 and / or a rotary drive 18 of the roll changer 03 and / or a rotary drive 20 of the folding apparatus 05 in signal communication with the machine control 16.
  • the rotary drives 17; 18; 20 are preferably formed mechanically independently of each other; however, electronically connected to each other via the machine control 16.
  • z. B. a certain pull-in speed in Einzieh congress receive, for example, the printing unit 02 and / or the reelstand 03 (and possibly other aggregates) and the control device 12 of the device for feeding correlated with each other, speed-relevant setpoint specifications, which synchronization of the speeds -. B. the unwinding speed at the roll changer 03 or the peripheral speed at the printing cylinder and the web speed.
  • the motion control of the subordinate drives 17; 18; 20 (setpoint specification) preferably follows a conductance of a so-called electronic master axis ⁇ .
  • the position of the leading axis ⁇ can be either on one of the units 02; 03; 05, z. B. the folder 05, the printing machine 01 and the rest of the units 02; 03 from this provide the specifications, or the leading axis ⁇ running - possibly after calibration on one of the units 02; 03; 05, for example, the folder 05 - free to and delivers in the other Operate the positions to all units 02; 03; 05.
  • An angular velocity of this revolving guide axis ⁇ then corresponds to a predetermined machine speed, for example, a "feeding speed for automatic feeding” or a "printing” with a predetermined speed or a product output.
  • a predetermined machine speed for example, a "feeding speed for automatic feeding” or a "printing” with a predetermined speed or a product output.
  • n ⁇ should v should ⁇ * d ⁇ 0 ⁇ X + 2 * d ⁇ 06 * u 0 ⁇ X + n ⁇ v .
  • 0X 07 or 08, and wherein depending on the location of the arrangement of the number of revolutions or swept degrees detecting sensor 19, z.
  • the o. G. Logic for determining a target frequency for the motor 11 and the servo control for the motor 21 may also be implemented in separate components.
  • the pull-in means 06 is thus pulled by the motor 11 and the bobbin 07 circumferentially controlled by the roll changer 03 to the delivery area (eg up to the former 04), the motor 11 is fed by the frequency converter 13, and this from the control and / or computing unit 14 to a calculated target value n depending on the frequency of the current engine speed (or the target value of the threading speed v soll) and the calculated diameter D07; D08 of the bobbin 07 used for the determination; 08 receives.
  • the motor 21 in the receiving area (eg near the roll changer 03) is controlled by the control and / or computing unit 14. In the feed-in mode, for example, it receives a low offset speed in the opposite direction for unwinding. For example, by setting a train setpoint Z soll , e via an input device for feeding the drive, the torque can be limited.
  • the motor 21 is "pulled through” by the stronger, speed-controlled motor 11 and thus builds up the desired strip tension.
  • the motor 11 receives its frequency setpoint, ie the setpoint ⁇ soll , corresponding to the currently calculated diameter D07; D08 of the winding body 07; 08 in the opposite direction.
  • the motor 21 receives an adjustable speed rated with a fixed diameter, z. B. 220 mm for the empty drum.
  • an offset speed is added in order to ensure a constant lead over the motor 11 and its bobbin 07 safely. Due to the continuous advance of the bobbin 08 and an adjustable train setpoint Z soll, r for rewinding, the desired strip tension is built up in the rewinding operation.
  • Maintaining a constant pull-in speed and in particular compliance certain moments during retraction now allows the retraction of the web in such a way that the web and web tension-influencing aggregates reach a state already approximated to the conditions required for the start of the machine 01 in the retracted state.
  • This is shown in the figure using the example of a drafts roller, indicated dancer roller 22.
  • the dancer roller 22 corrects a present web tension with regard to a selectable constant web tension.
  • This voltage can be predetermined and regulated, for example, by a web tension control (here likewise integrated in the term of the machine control 16).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Einziehen einer Materialbahn gemäß dem Oberbegriff der Ansprüche 1 bzw. 17The invention relates to a method and a device for drawing in a material web according to the preamble of claims 1 and 17, respectively

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.Such devices are used in printing machines to promote the web start of the web along the desired Einziehweges by the printing press. This is for example when moving in for a new production, or whenever necessary when a web of material is torn off during the printing process, so that the web start of the new material web can not be pulled through a flying reel 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 retrofitting the new material web has to be drawn along the corresponding drawing-in path.

Aus der DE 9415 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. Die Beiden Wickelrollen weisen in einem Ausführungsbeispiel je einen Antrieb auf.From the DE 9415 859 U1 a device for drawing a web into a treatment station is known in which the ribbon-shaped catch means can be rewound from a winding roll at the inlet of the treatment station on a winding roll at the outlet of the treatment station. The two winding rollers each have a drive in one embodiment.

Auch die DE 197 24 123 A1 zeigt in einem Ausführungsbeispiel ein endliches Einzugmittel, welches zwischen zwei jeweils angetriebenen Spulenkörpern umgespult werden kann.Also the DE 197 24 123 A1 shows in one embodiment, a finite catchment means, which can be rewound between two each driven bobbins.

Aus der DE 22 41 127 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 Einzugmittels 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 the DE 22 41 127 A1 is a device for drawing webs in Rotary printing machines known in which the trained in the manner of a spring steel strip catching means along different Einziehwege, between which can be converted by means of switches, can be pushed from the outlet of the printing machine ago. The drive of the retraction means is effected by a stationary arranged drive wheel, which comes form-fitting engagement on the retraction means and pushes the retraction means along its entire length through the printing press.

Die EP 04 18 903 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.The EP 04 18 903 A2 discloses a device for drawing in a material web, wherein a pulling-in means is driven by a motor which is regulated as a function of measured data determined during the pulling-in process. The regulation takes place with regard to a constant retraction speed or speed.

Durch die DE 94 09 390 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.By the DE 94 09 390 U1 discloses a device for retraction of a material web, wherein a pulling-in means is driven by a stepper motor. A already traveled by the collection means transport path is detected by sensors.

Aus der WO 02/090 650 A2 sind Vorrichtungen zum Einziehen einer Materialbahn bekannt, wobei ein endliches Einzugmittel mittels eines Antriebes im Bereich eines Abgabebereichs für die Bahn angetrieben ist. In einer ersten Variante st dieser Antrieb bezüglich einer Geschwindigkeit - ggf. korreliert mit einem unabhängig angetriebenen Aggregat der Maschine, und in zweiter Variante bezüglich eines Drehmomentes geregelt.From the WO 02/090 650 A2 are known devices for pulling a web, wherein a finite catch means is driven by means of a drive in the region of a delivery area for the web. In a first variant of this drive st with respect to a speed - possibly correlated with an independently driven unit of the machine, and regulated in the second variant with respect to a torque.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Einziehen einer Materialbahn zu schaffen.The invention has for its object to provide a method and apparatus for drawing a web.

Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 bzw. 17 gelöst.The object is achieved by the features of claims 1 and 17, respectively.

Ein Vorteil der Erfindung liegt insbesondere darin, dass ein schneller und sicherer Anfahrvorgang der Maschine nach dem einziehen erfolgen kann. Das Einziehen erfolgt hierbei trotz der Möglichkeit hoher Einziehgeschwindigkeiten gleichzeitig sehr materialschonend.An advantage of the invention is in particular that a faster and safer starting of the machine can be done after the move. The feeding takes place Here, despite the possibility of high retraction speeds simultaneously very gentle on materials.

Das Einzugmittel kann prinzipiell unendlich, d. h. als geschlossenes bandförmiges Material, ausgeführt sein, welches über eine angetriebene Walze im Bereich eines Anfangs des Einziehweges und eine Walze im Bereich eines Endes des Einziehweges förderbar ist.The catching means can in principle be infinite, d. H. as a closed band-shaped material, be executed, which is conveyed via a driven roller in the region of an initial of the Einziehweges and a roller in the region of one end of the Einziehweges.

Vorzugsweise ist das Einzugmittel jedoch endlich ausgeführt, mit seinen Enden jeweils an einem Spulenkörper angeordnet und kann von einem Spulenkörper im Bereich eines Anfanges des Einzugweges auf einen Spulenkörper im Bereich des Endes des Einzugweges umgespult werden und umgekehrt. Dabei bleiben jedoch immer beide Enden mit dem jeweiligen Spulenkörper in Verbindung.Preferably, however, the pulling-in means is finally designed, with its ends respectively arranged on a bobbin, and can be rewound from a bobbin in the region of an initiation of the draw-in path onto a bobbin in the region of the end of the draw-in path and vice versa. However, both ends always remain in contact with the respective bobbin.

Nach einer bevorzugten Ausführungsform erfolgt der Antrieb des Einzugmittels durch Antrieb je eines Spulenkörpers im Bereich des Einziehanfangs und -endes. Vorteilhaft sind diese Antriebe zum Auf- bzw. Abwickeln des Einzugmittels in zwei Drehrichtungen antreibbar.According to a preferred embodiment, the drive of the pulling-in means is carried out by driving a respective bobbin in the region of the retraction start and end. Advantageously, these drives for winding or unwinding of the catchment means can be driven in two directions of rotation.

Zum Antrieb des zumindest am Ende des Einzugweges liegenden Spulenkörpers wird ein regelbarer Elektromotor eingesetzt, so dass der Spulenkörper geregelt mit unterschiedlichen Rotationsgeschwindigkeiten und/oder Drehmomenten angetrieben werden kann. Vorzugsweise sind die Antriebe beider Spulenkörper als bzgl. der Drehzahl und/oder des anliegenden Momentes regelbar ausgeführt. Durch entsprechende Messung der Vorschubgeschwindigkeit des Einzugmittels mittels Messstellen oder durch Erfassen des ab- bzw. aufgewickelten Winkels am Spulenkörper kann der Vorschub ermittelt und durch Regelung des Elektromotors eine konstante Fördergeschwindigkeit am Einzugmittel eingeregelt werden. Durch Ermittlung des anliegenden Momentes (z. B. elektrische Leistung) kann das anliegende Moment ermittelt und ein bestimmtes Moment eingestellt bzw. ein maximales Moment überwacht werden. Der jeweilige Elektromotor ist dann je nach Anforderung entsprechend bzgl. einer Geschwindigkeit (z. B. Frequenz) oder eines Drehmomentes (Leistung) gesteuert.To drive the at least at the end of the retraction path lying bobbin, a controllable electric motor is used, so that the bobbin can be controlled with different rotational speeds and / or torques driven. Preferably, the drives of both bobbins are designed to be controllable with respect to the rotational speed and / or the applied torque. By appropriate measurement of the feed rate of the catching means by means of measuring points or by detecting the unwound or wound angle on the bobbin, the feed can be determined and regulated by controlling the electric motor, a constant conveying speed at the feed means. By determining the applied torque (eg electrical power), the applied torque can be determined and a specific torque can be set or a maximum moment to be monitored. Depending on the requirement, the respective electric motor is accordingly controlled with respect to a speed (eg frequency) or a torque (power).

Von besonderem Vorteil ist eine Ausführung, wobei beim Einziehen der Antrieb im Bereich des Endes des Einziehweges (z. B. im Bereich Überbau) Geschwindigkeits- bzw. Drehzahlgeregelt betrieben wird, während der Antrieb im Bereich des Anfangs des Einziehweges (z. B. im Bereich Rollenwechsler) bzgl. eines Momentes, z. B. eines konstanten Rückhaltemomentes, betrieben wird. In dieser Weise wird ein gleichmäßiges Einziehen ermöglicht und eine bestimmte Spannung der Bahn während des Einziehvorgangs gewährleistet. Durch diese Vorgehensweise (Regelung bzgl. der Geschwindigkeit und bzgl. des Momentes) wird vermieden, dass durch eine zu geringe Spannung sog. Säcke im Bahnweg entstehen können und/oder eine im Bahnweg angeordnete Tänzerwalze mit einer zu stark abweichenden Bahnspannung beaufschlagt wird. In letzterem Fall würden bei Start der Maschine beispielsweise extrem hohe Abweichungen von Sollwerten und damit hohe Ausschläge der Regelsysteme folgen. "Falsche" Bahnspannungen (zu hoch oder durch Sackbildung zu niedrig) in der Anfahrphase könnten dann leicht zu Bahnrissen, jedoch zumindest zu unnötig viel Anlaufmakulatur führen.Of particular advantage is an embodiment in which, when the drive is pulled in at the end of the pull-in path (eg in the superstructure area), speed- or speed-controlled operation is carried out, while the drive is operated in the region of the beginning of the pull-in path (eg in the area of the intake path) Area reel changer) with respect to a moment, for. B. a constant retention torque is operated. In this way, a uniform retraction is possible and ensures a certain tension of the web during the Einziehvorgangs. By this procedure (regulation with respect to the speed and with respect to the moment) it is avoided that so-called sacks in the web path can arise due to too low a tension and / or a dancer roller arranged in the web path is subjected to an excessively different web tension. In the latter case, for example, extremely high deviations from nominal values and thus high deflections of the control systems would occur when the machine is started. "Wrong" web tension (too high or due to bag formation too low) in the start-up phase could then easily lead to web breaks, but at least to unnecessarily much start-up waste.

In Weiterbildung steht eine derartige Vorgehensweise und Vorrichtung in Wirkverbindung zu einer Maschinensteuerung und/oder einer für den Betrieb vorgesehenen Bahnspannungsregelung. D. h., es kann bereits durch das korrekte Einziehen der Bahn i. V. m. einer Grundeinstellung für die die Bahnspannung beeinflussenden Aggregate - z. B. Tänzerwalzen - eine betriebsbereite Maschine geschaffen werden.In a further development, such a procedure and device is operatively connected to a machine control and / or a web tension control provided for operation. That is, it can already by the correct retraction of the web i. V. m. a basic setting for the web tension influencing aggregates -. B. dancer rollers - a ready machine are created.

Zur Messung der Fördergeschwindigkeit des Einzugmittels 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 Einzugmittels ergibt. Durch Auswertung dieser beiden Messwerte kann in einfacher Weise der linear gerichtete Vorschubweg und in Abhängigkeit von der Zeit die linear gerichtete Vorschubgeschwindigkeit des Einzugmittels 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 pulling-in means. A particularly simple design results when the effective circumference of the bobbin with which the catcher is unwound and the Rotation speed of the bobbin measured or specified as a curve. The effective circumference of the bobbin is understood to mean the value resulting from the circumference of the bobbin itself and the circumference of the layers of the pulling-in agent still wound thereon. By evaluating these two measured values, the linearly directed feed path and, depending on the time, the linearly directed feed speed of the pull-in means can be determined in a simple manner and subsequently regulated to a desired value by appropriate control of the rotational speed of the bobbin. Also, a corresponding, stored in the software as a control curve dependency of the target speed of the number of completed revolutions is conceivable.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawing and will be described in more detail below.

Es zeigt eine Druckmaschine mit einer Vorrichtung zum Einziehen einer Materialbahn in einem schematischen darstellten Querschnitt.It shows a printing press with a device for drawing in a material web in a schematic represented cross section.

In eine bahnver- und/oder bahnbearbeitende Maschine 01, z. B. eine Druckmaschine 01, zur Behandlung einer Bahn bzw. Materialbahn, z. B. zum Bedrucken einer Papierbahn, ist zwecks Einziehens eines Anfanges der Bahn in die Maschine 01 eine Vorrichtung zum Einziehen vorgesehen, mittels welcher ein Anfang der Bahn von einem Anfang des Einziehweges bis zu einem Ende des Einziehweges förderbar ist. Ggf. kann sich vor oder nach diesem maschinell zu beschickenden Einziehweg ein manueller Weg weiter durch die Maschine anschließen.In a web and / or web-processing machine 01, z. As a printing press 01, for treating a web or web, z. As for printing a paper web, a device for retraction is provided for the purpose of drawing a beginning of the web in the machine 01, by means of which a beginning of the web from a beginning of the Einziehweges is conveyed to one end of the Einziehweges. Possibly. A manual way can continue through the machine before or after this machine feed path.

Die in der Zeichnung lediglich schematisch dargestellte Druckmaschine 01 weist exemplarisch ein als Druckeinheit 02 ausgebildetes Aggregat 02, hier mit zwei Doppel-Druckwerken bzw. vier Druckwerken, sowie ein als Rollenwechsler 03 ausgebildetes Aggregat 03 und Falztrichter 04 auf. An den Falztrichter 04 schließt sich ein als Falzapparat 05 ausgebildetes, die Bahn weiterverarbeitendes Aggregat 05 an. Im Betrieb läuft die nicht dargestellte Bahn vom Rollenwechsler 03 durch eine oder mehrere Druckeinheiten 02, ggf. über einen nicht dargestellten Überbau mit Längsschneideinrichtung und Wendedeck über den Falztrichter 04. Zum maschinellen Einziehen der Bahn auf zumindest einem Abschnitt eines derartigen Weges ist eine Vorrichtung zum Einziehen der Materialbahn vorgesehen.The printing machine 01, which is shown only schematically in the drawing, has, by way of example, an assembly 02 embodied as printing unit 02, here with two double printing units or four printing units, and an aggregate 03 and former 04 formed as a reel splicer 03. At the former 04 closes as Folder 05 trained, the web further processing unit 05 at. In operation, the web, not shown, runs from the roll changer 03 through one or more printing units 02, possibly via a superstructure, not shown, with a longitudinal cutting device and a turning deck over the former 04. For machine retraction of the web on at least one section of such a path, a device for drawing in is provided provided the material web.

Die Vorrichtung weist in einer vorteilhaften ersten Ausführung in einem vorderen Bereich der Maschine, in welchem eine einzuziehende Bahn mit einem Einzugmittel 06 verbindbar ist- im folgenden Aufnahmebereich genannt- und in einem hinteren Bereich, in welchem die eingezogene Bahn vom Einzug mittel 06 gelöst wird - im folgenden Abgabebereich genannt - je einen Spulenkörper 07; 08 auf, auf welchem das Einzugmittel 06 aufwickelbar bzw. von diesem abwickelbar ist.The device has in an advantageous first embodiment in a front region of the machine in which a train to be retracted with a catchment 06 is connectable - in the following recording area called - and in a rear area in which the retracted web is detached from the collection means 06 - in the following delivery area - each a bobbin 07; 08, on which the collection means 06 wound up or unwound from this.

In einer nicht dargestellten Ausführungsform ist das Einzugmittel 06 endlos, d. h. als Schlaufe, ausgeführt, welche anstatt auf Spulenkörpern 07; 08 aufgewickelt zu werden im Aufnahme- und Abgabebereich eine Transportrolle bzw. -walze umläuft. Bevorzugt sind diese Transportrollen in der Weise der unten näher beschriebenen Spulenkörper 07; 08 drehzahl- bzw. momentengesteuert bzw. -geregelt angetrieben. Um Schlupf zu vermindern können sie beispielsweise mit Andrückrollen bzw. -walzen zusammenwirken.In one embodiment, not shown, the catchment means 06 is endless, d. H. as a loop, running, which instead of bobbins 07; 08 to be wound in the receiving and dispensing area a transport roller or roller rotates. These transport rollers are preferably in the manner of the spool 07 described in more detail below; 08 driven by speed or torque driven or regulated. To reduce slippage, for example, they can cooperate with pressure rollers or rollers.

Der Aufnahmebereich befindet sich bevorzugt in der Nähe des Rollenwechslers 03, so dass die Bahn direkt im Anschluss an das Abwickeln von der Rolle durch das Einzugmittel 06 führbar ist. Der Abgabebereich kann grundsätzlich an jeder beliebigen Stelle des Bahnweges bis hinter dem Falztrichter 04 angeordnet sein. In hier dargestellter vorteilhaften Ausführung ist der Abgabebereich und damit der Spulekörper 07 nach der (letzten) durchlaufenen Druckeinheit 02, jedoch vor dem Falztrichter 04 angeordnet. Sind im Überbau Wendestangen angeordnet, so kann sich der Abgabebereich ggf. im Bahnweg noch vor diesen Wendestangen befinden, falls die Führung für das Einzugmittel 06 und der Bahn nicht zum Umfahren der Wendestangen ausgebildet ist.The receiving area is preferably in the vicinity of the roll changer 03, so that the web can be guided directly after unwinding from the roll by the draw-in means 06. The delivery area can in principle be arranged at any point of the track path to behind the former 04. In an advantageous embodiment shown here, the delivery area and thus the bobbin 07 are arranged after the (last) continuous printing unit 02, but before the former 04. If turner bars are arranged in the superstructure, then the dispensing area may possibly still be located in front of these turner bars in the web path, if the guide for the feed means 06 and the train is not designed to bypass the turning bars.

Vorzugsweise wird die ganze Bahn jedoch geradeaus bis hin vor dem Falztrichter 04 eingezogen und erst wenn diese Bahn eingezogen ist wird das Messer im Oberbau aufgesetzt und die neue Teilbahn über die Wendestange eingezogen. Der Abgabebereich befindet sich hierbei kurz vor dem Trichtereinlauf.Preferably, however, the entire web is fed straight ahead to the former 04 and only when this train is retracted the knife is placed in the superstructure and retracted the new sub-web on the turning bar. The delivery area is just before the funnel inlet.

Im dargestellten Ausführungsbeispiel wird der Spulenkörper 07 im Abgabebereich mittels eines einen Motor 11 aufweisenden Antriebes, z. B. eines Elektromotors 11, insbesondere mittels eines zumindest bzgl. seiner Drehzahl steuerbaren Wechselstrommotors 11, angetrieben. In einfacherer, bevorzugter Ausführung erfolgt lediglich eine Steuerung, indem der Sollwert ṅ soll für die Frequenz dem Motor 11 ohne Rückführung in einen Regelkreis lediglich aufgeprägt wird. In einer alternativen Ausführung erfolgt eine Steuerung des Motors 11, indem anhand einer Sollwertvorgabe einem inneren Regelkreis des Antriebes ein Sollwert ṅsoll für die Drehzahl bzw. Frequenz, d. h. letztlich unter Berücksichtigung des Wickelradius die Auf- bzw. Abwickelgeschwindigkeit des Einzugmittels 06, vorgegeben wird. Hierbei wird beispielsweise ein Istwert einer gemessenen Winkelgeschwindigkeit oder der Anzahl der Umdrehungen pro Zeiteinheit von Bauteil oder Motor einem nicht dargestellten Antriebsregler rückgeführt.In the illustrated embodiment, the bobbin 07 in the delivery area by means of a motor 11 having a drive, for. B. an electric motor 11, in particular by means of an at least. Its speed controllable AC motor 11, driven. In a simpler, preferred embodiment, only a control takes place by the setpoint n so ll for the frequency of the motor 11 is only impressed without feedback in a control loop. In an alternative embodiment, a control of the motor 11 is carried out by using a setpoint input an internal control loop of the drive a setpoint ṅ soll for the speed or frequency, ie ultimately, taking into account the winding radius, the winding or unwinding of the pulling-06. Here, for example, an actual value of a measured angular velocity or the number of revolutions per unit time of component or motor is fed back to a drive controller, not shown.

Der letztlich die Einziehgeschwindigkeit repräsentierende Sollwert ṅsoll für die Drehzahl bzw. Frequenz wird dem Motor 11 bzw. dessen Antriebssteuerung durch eine Steuereinrichtung 12 vorgegeben. Diese Steuereinrichtung 12 weist beispielsweise einen Frequenzumrichter 13 und eine Steuer- und/oder Recheneinheit 14, insbesondere eine Servo-Steuereinheit 14, z. B. als Servo PLC 14 ausgeführt. Anhand eines Sollwertes einer vorzugebenden Einziehgeschwindigkeit vsoll wird nun in einer in der Servo PLC 14 integrierten Logik (oder einem zusätzlichen logischen Bauteil) die Sollfrequenz ermittelt und durch den Frequenzumrichter 13 für den Motor 11 bereitgestellt. In einer einfachen Ausführung kann die Einziehgeschwindigkeit vsoll, beispielsweise über ein Eingabemedium oder eine entsprechende Schnittstelle der Steuereinrichtung 12, der Steuereinrichtung 12 direkt und manuell vorgegeben werden. In bevorzugter Ausführung erfolgt die Vorgabe der Einziehgeschwindigkeit vsoll über eine übergeordneten Steuereinrichtung 16, z. B. eine Maschinensteuerung 16. Dies gewährleistet die Synchronisation zwischen der Bewegungsgeschwindigkeit des Einzugmittels 06 und zumindest Bauteilen bzw. Aggregaten 02; 03; 05 der Druckmaschine O1 welche mit der einzuziehenden Bahn in Wechselwirkung, beispielsweise körperlichen Kontakt, treten.The setpoint speed Frequenz soll for the speed or frequency, which ultimately represents the pull-in speed, is predetermined by the motor 11 or its drive control by a control device 12. This control device 12 has, for example, a frequency converter 13 and a control and / or computing unit 14, in particular a servo-control unit 14, for. B. executed as a servo PLC 14. Based on a target value of a prescribed retraction speed v soll , the setpoint frequency is then determined in a logic integrated in the servo PLC 14 (or an additional logical component) and provided by the frequency converter 13 for the motor 11. In a simple Execution, the Einziehgeschwindigkeit v soll , for example, via an input medium or a corresponding interface of the control device 12, the control device 12 can be specified directly and manually. In a preferred embodiment, the setting of the draw-in takes place v to a higher-level control device 16, for. This ensures the synchronization between the speed of movement of the retraction means 06 and at least components or units 02; 03; 05 of the printing machine O1 which interact with the web to be collected, for example, physical contact.

Beispielhaft steht in der Figur ein rotatorischer Antrieb 17 der Druckeinheit 02 und/oder ein rotatorischer Antrieb 18 des Rollenwechslers 03 und/oder ein rotatorischer Antrieb 20 des Falzapparates 05 in Signalverbindung mit der Maschinensteuerung 16. Die rotatorischen Antriebe 17; 18; 20 sind vorzugsweise mechanisch unabhängig voneinander ausgebildet; jedoch elektronisch miteinander über die Maschinensteuerung 16 verbunden. Bei Vorgabe einer bestimmten Maschinengeschwindigkeit, z. B. einer bestimmten Einziehgeschwindigkeit im Einziehbetrieb, erhalten beispielsweise die Druckeinheit 02 und/oder der Rollenwechsler 03 (und ggf. andere Aggregate) als auch die Steuereinrichtung 12 der Vorrichtung zum Einziehen miteinander korrelierende, geschwindigkeitsrelevante Sollwertvorgaben, welche eine Synchronisierung der Geschwindigkeiten - z. B. die Abrollgeschwindigkeit am Rollenwechsler 03 oder die Umfangsgeschwindigkeit am Druckwerkszylinder und die Bahngeschwindigkeitgewährleisten.By way of example, in the figure, a rotary drive 17 of the printing unit 02 and / or a rotary drive 18 of the roll changer 03 and / or a rotary drive 20 of the folding apparatus 05 in signal communication with the machine control 16. The rotary drives 17; 18; 20 are preferably formed mechanically independently of each other; however, electronically connected to each other via the machine control 16. When specifying a certain machine speed, z. B. a certain pull-in speed in Einziehbetrieb receive, for example, the printing unit 02 and / or the reelstand 03 (and possibly other aggregates) and the control device 12 of the device for feeding correlated with each other, speed-relevant setpoint specifications, which synchronization of the speeds -. B. the unwinding speed at the roll changer 03 or the peripheral speed at the printing cylinder and the web speed.

Die Bewegungssteuerung der untergeordneten Antriebe 17; 18; 20 (Sollwertvorgabe) folgt bevorzugt einem Leitwert einer sog. elektronischen Leitachse Φ. Die Position der Leitachse Φ kann sich entweder an einem der Aggregate 02; 03; 05, z. B. dem Falzapparat 05, der Druckmaschine 01 orientieren und den übrigen Aggregaten 02; 03 hieraus die Vorgaben liefern, oder die Leitachse Φ läuft - ggf. nach Kalibrierung an einem der Aggregate 02; 03; 05, z.B. dem Falzapparat 05 - frei um und liefert im weiteren Betrieb die Positionen an sämtliche Aggregate 02; 03; 05. Eine Winkelgeschwindigkeit dieser umlaufenden Leitachse Φ entspricht dann einer vorgegebenen Maschinengeschwindigkeit, beispielsweise einer "Einziehgeschwindigkeit für den automatischen Einzug" oder einem "Drucken" mit einer vorgebbaren Drehzahl bzw. einem Produktausstoß. Im Ergebnis sind beim Einziehen durch die Maschinensteuerung 16 (bzw. Leitachse Φ) somit die Bewegungen von zumindest einem mit der Bahn zusammenwirkenden, bewegten Aggregat 02; 03 (z. B. Druckeinheit 02 und/oder Rollenwechsler 03) und die des Einzugmittels 06 synchronisiert. Die Sollwertvorgabe der Einziehgeschwindigkeit vsoll an die Steuerung 12 richtet sich vorzugsweise nach einer gewählten Maschinengeschwindigkeit.The motion control of the subordinate drives 17; 18; 20 (setpoint specification) preferably follows a conductance of a so-called electronic master axis Φ. The position of the leading axis Φ can be either on one of the units 02; 03; 05, z. B. the folder 05, the printing machine 01 and the rest of the units 02; 03 from this provide the specifications, or the leading axis Φ running - possibly after calibration on one of the units 02; 03; 05, for example, the folder 05 - free to and delivers in the other Operate the positions to all units 02; 03; 05. An angular velocity of this revolving guide axis Φ then corresponds to a predetermined machine speed, for example, a "feeding speed for automatic feeding" or a "printing" with a predetermined speed or a product output. As a result, when retracted by the machine control 16 (or master axis Φ), the movements of at least one moving aggregate 02 cooperating with the web are thus; 03 (eg printing unit 02 and / or reel changer 03) and that of the pulling-in means 06 are synchronized. The setpoint specification of the pull-in speed v soll to the controller 12 preferably depends on a selected machine speed.

Bei Ausbildung der Vorrichtung mit einem umzuspulenden Einzugmittel 06 und dem Antrieb desselben durch eine oder beide Spulen körper 07; 08 muss bei Vorgabe des Sollwertes ṅsoll an den Motor 11 der sich ändernde Wickelradius berücksichtigt werden. Dieser kann zwar grundsätzlich kontinuierlich durch Anordnung mindestens eines Sensors am Spulenkörper 07; 08 ermittelt werden, vorzugsweise wird er jedoch aus dem Grunddurchmesser eines oder beider Spulenkörper d07; d08, der Anzahl der Wickellagen bzw, der Umdrehungen u0X an einem oder beiden Spulenkörpern d07; d08 und der Dicke d06 des Einzugmittels 06 ermittelt. Soll im Hinblick auf eine aufrechtzuerhaltende Spannung im Einzugmittel 06 eine geringfügige Voreilung in der Drehzahl nv vorzusehen sein, so ist diese ebenfalls additiv zu berücksichtigen. Ein aktueller Sollwert ṅsoll für eine Drehzahl ergilbt sich prinzipiell beispielweise nach dem Zusammenhang zu n ˙ soll = v soll π * d ⁢ 0 ⁢ X + 2 * d ⁢ 06 * u 0 ⁢ X + n ˙ v ,

Figure imgb0001

wobei 0X = 07 oder 08, und wobei je nach dem Ort der Anordnung eines die Anzahl der Umdrehungen bzw. überstrichene Winkelgrade erfassenden Sensors 19, z. B. Resolvers 19, eine Transformation von dem einen auf den anderen Spulkörper 07; 08 erfolgen muss.In training the device with a retractable retraction means 06 and the drive thereof by one or both coil body 07; 08 must be taken into account when specifying the setpoint ṅ soll to the motor 11 of the changing winding radius. Although this can in principle be continuously by arranging at least one sensor on the bobbin 07; 08 are determined, but preferably it is from the basic diameter of one or both bobbins d07; d08, the number of winding layers or revolutions u 0X on one or both bobbins d07; d08 and the thickness d06 of the pull-06 determined. If, with regard to a voltage to be maintained in the draw-in means 06, a slight overshoot in the rotational speed n v must be provided, then this must also be taken into account as an additive. A current setpoint is to N for a speed up ergilbt principle, for example, as the context requires to n ˙ should = v should π * d ⁢ 0 ⁢ X + 2 * d ⁢ 06 * u 0 ⁢ X + n ˙ v .
Figure imgb0001
where 0X = 07 or 08, and wherein depending on the location of the arrangement of the number of revolutions or swept degrees detecting sensor 19, z. B. Resolvers 19, a transformation from one to the other Spulkörper 07; 08 done got to.

In der Figur ist zur Zählung der Anzahl der Umdrehungen der Resolver 19 in durchgezogenen Linien im Bereich des Spulenkörpers 07, und in strichlierter Darstellung im Bereich des Spulenkörpers 08 dargestellt.In the figure, to count the number of revolutions of the resolver 19 in solid lines in the coil body 07, and shown in dotted line in the coil body 08.

Aus dem Sollwert für die Einziehgeschwindigkeit vsoll , dem Grunddurchmesser eines oder beider Spulenkörper 07; 08, der Anzahl der Wickellagen bzw. der Umdrehungen u0X an einem oder beiden Spulenkörpern d07; d08 und der Dicke d06 des Einzugmittels 06 wird nun in der Steuer- und/oder Recheneinheit 14 und dem Frequenzumrichter 13 ein entsprechendes Signal für den Motor 11 zur Konstanthaltung der Einziehgeschwindigkeit aufbereitet und diesem zugeführt. Der Motor 11 im Abgabebereich wird im Einzugbetrieb somit im Hinblick auf eine konstante Einziehgeschwindigkeit v drehzahlgesteuert betrieben. Der Ausdruck d0X +(2*d06*u 0X) stellt dann einen aktuellen, berechneten Durchmesser D0X (D07, D08) nach u 0x Umdrehungen dar.From the setpoint for the retraction speed v soll , the base diameter of one or both bobbin 07; 08, the number of winding layers or revolutions u 0X on one or both bobbins d07; d08 and the thickness d06 of the pulling-06, a corresponding signal for the motor 11 is maintained in the control and / or computing unit 14 and the frequency converter 13 to maintain the Einziehgeschwindigkeit constant and supplied to this. The engine 11 in the delivery area is thus operated speed-controlled in the intake operation with respect to a constant intake speed v. The expression d 0X + (2 * d 06 * u 0X ) then represents a current, calculated diameter D0X (D07, D08) after u 0x revolutions.

Ein den Spulenkörper 08 im Aufnahmebereich antreibender Motor 21, z. B. Elektromotor 21, insbesondere ein Assynchronmotor 21, wird hingegen im Einzugbetrieb zumindest drehmomentbegrenzt betrieben. Dies erfolgt über die Servo-Steuerung der Steuer- und/oder Recheneinheit 14. Die o. g. Logik zur Ermittlung einer Sollfrequenz für den Motor 11 und die Servo-Steuerung für den Motor 21 können auch in gesonderten Bauteilen ausgeführt sein.A bobbin 08 in the receiving area driving motor 21, z. B. electric motor 21, in particular an asynchronous motor 21, however, is operated at least torque limited in the intake operation. This is done via the servo control of the control and / or computing unit 14. The o. G. Logic for determining a target frequency for the motor 11 and the servo control for the motor 21 may also be implemented in separate components.

In vorteilhafter Betriebsweise entsteht beim Einziehen eine gewünschte Bandstraffung durch Ansteuerung des Motors 21 im Aufnahmebereich mit einem konstanten Rückhaltemoment, der Motor 21 läuft hierbei im Prinzip in zum Abwickeln entgegengesetzter Drehrichtung. Effektiv wird er jedoch durch den stärkeren Motor 11 zur Drehrichtung für das Abwickeln gezwungen.In an advantageous mode of operation, when pulling in a desired belt tightening is produced by activating the motor 21 in the receiving region with a constant retention torque, the motor 21 runs in principle in an opposite direction of rotation for unwinding. Effectively, however, it is forced by the stronger motor 11 to unwind the direction of rotation.

Im Einziehbetrieb wird das Einzugmittel 06 somit durch den Motor 11 und den Spulenkörper 07 umfangsgeschwindigkeitsgesteuert vom Rollenwechsler 03 bis zum Abgabebereich (z. B. bis zum Falztrichter 04) gezogen, wobei der Motor 11 vom Frequenzumrichter 13 gespeist wird, und dieser von der Steuer- und/oder Recheneinheit 14 einen berechneten Sollwert ṅsoll für die Frequenz abhängig von der aktuellen Maschinengeschwindigkeit (bzw. vom Sollwert der Einziehgeschwindigkeit vsoll ) und dem berechnetem Durchmesser D07; D08 des zur Ermittlung herangezogenen Spulenkörpers 07; 08 erhält. Der Motor 21 im Aufnahmebereich (z. B. nahe dem Rollenwechsler 03) wird von der Steuer- und/oder Recheneinheit 14 angesteuert. Er erhält in der Betriebsart Einziehen beispielsweise eine geringe Offset-Drehzahl in die zum Abwickeln entgegen gesetzte Richtung. Beispielsweise kann durch Einstellen eines Zugsollwertes Zsoll,e über eine Eingabevorrichtung für das Einziehen dem Antrieb das Drehmoment begrenzt werden. Der Motor 21 wird vom stärkeren, drehzahlgesteuerten Motor 11 "durchgezogen" und baut somit den gewünschten Bandzug auf.In pull-in mode, the pull-in means 06 is thus pulled by the motor 11 and the bobbin 07 circumferentially controlled by the roll changer 03 to the delivery area (eg up to the former 04), the motor 11 is fed by the frequency converter 13, and this from the control and / or computing unit 14 to a calculated target value n depending on the frequency of the current engine speed (or the target value of the threading speed v soll) and the calculated diameter D07; D08 of the bobbin 07 used for the determination; 08 receives. The motor 21 in the receiving area (eg near the roll changer 03) is controlled by the control and / or computing unit 14. In the feed-in mode, for example, it receives a low offset speed in the opposite direction for unwinding. For example, by setting a train setpoint Z soll , e via an input device for feeding the drive, the torque can be limited. The motor 21 is "pulled through" by the stronger, speed-controlled motor 11 and thus builds up the desired strip tension.

Beim Rückspulen läuft der Motor 11 beispielsweise mit einer einstellbaren Rückspulgeschwindigkeit (z. B. v = 26m/min) und der Motor 21 im Aufnahmebereich mit einer erhöhten Geschwindigkeit und einem konstanten Drehmoment, um die Bandstraffung zu erzeugen. Im Rückspulbetrieb erhält der Motor 11 seinen Frequenzsollwert, d. h. den Sollwert ṅsoll , entsprechend dem aktuell berechneten Durchmesser D07; D08 der Spulkörper 07; 08 in die entgegen gesetzte Richtung. Der Motor 21 erhält eine einstellbare Geschwindigkeit bewertet mit einem fixen Durchmesser, z. B. von 220 mm für die leere Trommel. Zudem wird vorzugsweise wie beim Einziehvorgang eine Offset Drehzahl addiert, um eine ständige Voreilung gegenüber dem Motor 11 bzw. dessen Spulenkörper 07 sicher zu stellen. Durch die stetige Voreilung der Spulenkörpers 08 und einem einstellbaren Zugsollwert Zsoll,r für das Rückspulen, wird der gewünschte Bandzug im Rückspulbetrieb aufgebaut.During rewinding, for example, the motor 11 runs at an adjustable rewinding speed (eg, v = 26m / min) and the motor 21 in the pickup area at an increased speed and torque to produce the tape tightening. In the rewind operation, the motor 11 receives its frequency setpoint, ie the setpoint ṅ soll , corresponding to the currently calculated diameter D07; D08 of the winding body 07; 08 in the opposite direction. The motor 21 receives an adjustable speed rated with a fixed diameter, z. B. 220 mm for the empty drum. In addition, preferably as in the drawing process, an offset speed is added in order to ensure a constant lead over the motor 11 and its bobbin 07 safely. Due to the continuous advance of the bobbin 08 and an adjustable train setpoint Z soll, r for rewinding, the desired strip tension is built up in the rewinding operation.

Die Einhaltung einer konstanten Einziehgeschwindigkeit und insbesondere die Einhaltung bestimmter Momente beim Einziehen ermöglicht nun das Einziehen der Bahn in der Weise, dass die Bahn und bahnspannungsbeeinflussende Aggregate im eingezogenen Zustand einen an die erforderlichen Bedingungen für den Start der Maschine 01 bereits angenäherten Zustand erreichen. Dies ist in der Figur am Beispiel einer vom Einzugmittel umfahrenen, angedeuteten Tänzerwalze 22 dargestellt. Die Tänzerwalze 22 korrigiert beim Betrieb der als Druckmaschine 01 ausgeführten Maschine 01 eine vorliegende Bahnspannung im Hinblick auf eine wählbare konstante Bahnspannung. Diese Spannung kann beispielsweise durch eine Bahnspannungsregelung (hier ebenfalls im Begriff der Maschinensteuerung 16 integriert) vorgegeben und geregelt sein. Bei entsprechend eingestelltem Sollwert während des Einziehens und der Einhaltung des Momentes am Einzugmittel 06 ist nun ein Einziehen ohne Sackbildung und/oder ohne, dass eine ungewünschte Auslenkung der Tänzerwalze 22 erfolgt, möglich. D. h. der Einziehvorgang erfolgt bereits mit annähernd korrekten Weglängen und Spannungen, so dass beim späteren Anfahren der Maschine 01 die Gefahr von Bahnrissen oder langwierige Schwingungen in der Regelung verringert werden. In Weiterbildung ist während des Einziehvorgangs eine Bahnspannungsregelung bereits aktiviert.Maintaining a constant pull-in speed and in particular compliance certain moments during retraction now allows the retraction of the web in such a way that the web and web tension-influencing aggregates reach a state already approximated to the conditions required for the start of the machine 01 in the retracted state. This is shown in the figure using the example of a drafts roller, indicated dancer roller 22. During the operation of the machine 01, which is designed as a printing machine 01, the dancer roller 22 corrects a present web tension with regard to a selectable constant web tension. This voltage can be predetermined and regulated, for example, by a web tension control (here likewise integrated in the term of the machine control 16). When set accordingly during set and adherence to the moment at the collection means 06 is now a retraction without bag formation and / or without that an undesirable deflection of the dancer roller 22 is possible. Ie. the pulling-in process already takes place with approximately correct path lengths and stresses, so that the risk of web breaks or lengthy vibrations in the control is reduced when the machine 01 is started up later. In a further development, a web tension control is already activated during the threading process.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101 Maschine, DruckmaschineMachine, printing machine 0202 Druckeinheit, AggregatPressure unit, aggregate 0303 Rollenwechsler, AggregatReel changer, aggregate 0404 Falztrichterformers 0505 Falzapparat, AggregatFolder, aggregate 0606 Einzugmittelfeeder means 0707 Spulenkörperbobbins 0808 Spulenkörperbobbins 0909 -- 1010 -- 1111 Motor, Elektromotor, WechselstrommotorMotor, electric motor, AC motor 1212 Steuereinrichtungcontrol device 1313 Frequenzumrichterfrequency converter 1414 Steuer- und/oder Recheneinheit, Servo-Steuereinheit, Servo PLCControl and / or computing unit, servo control unit, servo PLC 1515 -- 1616 Steuereinrichtung, übergeordnet, MaschinensteuerungControl device, superordinate, machine control 1717 Antriebdrive 1818 Antriebdrive 1919 Sensor, ResolverSensor, resolver 19'19 ' Sensor, ResolverSensor, resolver 2020 Antriebdrive 2121 Motor,Elektromotor, AssynchronmotorMotor, electric motor, asynchronous motor 2222 Tänzerwalzedancer roll ṅsoll ṅ should Sollwertsetpoint vsoiiv so ii Einziehgeschwindigkeitthreading φφ Leitachse, elektronischMaster axis, electronic

Claims (26)

  1. Method for threading a web into a machine (01) having a threading means (06), conveyable along its threading path, to which the material web is connectable and which is driveable by means of a motor (11) in an accepting area and of a motor (21) in a delivery area for the web, during the threading a first of the two motors (11; 21) being controlled at a presettable threading rate (vsoll), characterized in that the second motor (21; 11) is controlled with respect to a presettable torque applied from the motor (21; 11).
  2. Method according to Claim 1, characterized in that the first motor (11; 21) is controlled with respect to its speed of rotation.
  3. Method according to Claim 1, characterized in that the first motor (11; 21) is controlled with respect to its frequency by means of a frequency inverter (13).
  4. Method according to Claim 1, characterized in that the two motors (11; 21) in each case drive a coil body (07; 08), on which the threading means (06) is mutually unwindable or windable.
  5. Method according to Claim 1 and 4, characterized in that the control of the first motor (11; 21) takes place dependent on a current coil diameter (D07; D08) at least of one of the coil bodies (07; 08).
  6. Method according to Claim 5, characterized in that a set value (ṅsoll ) for a frequency to be applied to the motor (11; 21) is determined in a control device (12) dependent on the coil diameter (d07; d08).
  7. Method according to Claim 5, characterized in that the current coil diameter (D07; D08) is dependent on the number of unwound or wound positions and a thickness d06 of the threading means (06) as well as a starting diameter or a base diameter (d07; d08) of a coil body (07; 08).
  8. Method according to Claim 7, characterized in that the number of unwound or wound positions is determined as a number of rotations by means of a resolver (19; 19') on the coil body (07; 08) or its drive (11; 21).
  9. Method according to Claim 8, characterized in that the determination of the number of rotations takes place on the coil body (08) in the accepting area.
  10. Method according to Claim 8, characterized in that the determination of the number of rotations on the coil body (07) takes place in the delivery area.
  11. Method according to Claim 1, characterized in that in the threading operation of the first motor (11) controllable at a presettable threading rate (vsoll), drives the threading means (06) in the delivery area and the second motor (21), controlled with respect to a presettable torque, drives the threading means (06) in the accepting area.
  12. Method according to Claim 1, characterized in that in the threading operation of the first motor (11), controllable at a presettable threading rate (vsoll), the threading means (06) drives in the accepting area and the second motor (21), controlled with respect to a presettable torque, drives the threading means (06) in the delivery area.
  13. Method according to Claim 1, characterized in that the motor (11) driving the threading means (06) and a rotary drive (17; 18; 20) at least of a mechanically independent assembly (02; 03; 05) of the machine (01) are regulated or controlled with respect to their speed in a manner correlated to one another.
  14. Method according to Claim 1, characterized in that in the threading operation the motor (11) driving the threading means (06) and a drive (18) driving a roll changer (03) are driven in their speed in a manner correlated to one another by means of a machine control (16).
  15. Method according to Claim 1, characterized in that in the threading operation the motor (11) driving the threading means (06) and a drive (17) driving a printing unit (02) are driven in their speed in a manner correlated to one another by means of a machine control (16).
  16. Method according to Claim 1, characterized in that the second motor (21) is operated in the threading operation by means of a servo control of a control device (12) in a torque-restricted manner.
  17. Apparatus for threading a web in a machine (01) having a threading means (06) transportable along a threading path, to which the material web is connectable and which is driveable by means of a motor (11) in an accepting area and of a motor (21) in a delivery area for the web, a first of the two motors (11; 21) being controlled with respect to its speed or speed of rotation, characterized in that the second motor (21; 11) is handled in a controlled manner with respect to a applied and presettable torque.
  18. Apparatus according to Claim 17, characterized in that the first motor (11) is in signal connection with a control device (12), which is handled for the purpose of generating a frequency signal for the motor (11) from a preset threading velocity (vsoll).
  19. Apparatus according to Claim 18, characterized in that the control device (12) is in signal connection with a machine control (16), by means of which the control device (12) is provided a theoretical value for the preset threading velocity (vsoll).
  20. Apparatus according to Claim 19, characterized in that the machine control (16) for the transmission of velocity-relevant signals is in signal connection with a drive (17; 18; 20) of a further assembly (02, 03; 05), mechanically driven independently of the motor (11).
  21. Apparatus according to Claim 17, characterized in that a machine control (16) is provided, which is designed for the transmission of velocity-relevant signals correlating to one another to the motor (11) and also to a drive (17; 18; 20) of a mechanically independently driven assembly (02; 03; 05).
  22. Apparatus according to Claim 20 or 21, characterized in that the machine control (16) has an electronic control axis (φ), by which velocity-relevant signals are transmitted in the threading operation both to the motor (11) and also to the drive (17; 18; 20) of the assembly (02; 03; 05).
  23. Apparatus according to Claim 17, characterized in that the motors (11; 21) are in each case arranged driving a coil body (07; 08).
  24. Apparatus according to Claim 23, characterized in that a sensor (19; 19') determining the number of rotations or overlined degree angles is arranged on at least one coil body (07; 08) or its drive.
  25. Apparatus according to Claim 18 and 24, characterized in that the control device (12) has a computing means which is designed to generate a frequency signal for the motor (11) from the set threading velocity (vsoll) and the number of rotations or the overlined degree angles.
  26. Apparatus according to Claim 17, characterized in that the second motor (11) is in signal connection with a control device (14), which is designed for controlling the motor (11) with respect to a rotary torque to be observed.
EP05707769.5A 2004-02-09 2005-01-14 Method and device for threading a web Not-in-force EP1713641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004006232A DE102004006232B3 (en) 2004-02-09 2004-02-09 Drawing-in process for a web in printing press has second motor controlled on basis of preset torque
PCT/EP2005/050138 WO2005075197A1 (en) 2004-02-09 2005-01-14 Method and device for threading a web

Publications (2)

Publication Number Publication Date
EP1713641A1 EP1713641A1 (en) 2006-10-25
EP1713641B1 true EP1713641B1 (en) 2013-06-19

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EP05707769.5A Not-in-force EP1713641B1 (en) 2004-02-09 2005-01-14 Method and device for threading a web

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US (1) US20070145178A1 (en)
EP (1) EP1713641B1 (en)
DE (1) DE102004006232B3 (en)
WO (1) WO2005075197A1 (en)

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Publication number Publication date
EP1713641A1 (en) 2006-10-25
US20070145178A1 (en) 2007-06-28
DE102004006232B3 (en) 2005-07-21
WO2005075197A1 (en) 2005-08-18

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