EP1798172B1 - Device and method for unwinding a material web - Google Patents

Device and method for unwinding a material web Download PDF

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Publication number
EP1798172B1
EP1798172B1 EP06124298A EP06124298A EP1798172B1 EP 1798172 B1 EP1798172 B1 EP 1798172B1 EP 06124298 A EP06124298 A EP 06124298A EP 06124298 A EP06124298 A EP 06124298A EP 1798172 B1 EP1798172 B1 EP 1798172B1
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EP
European Patent Office
Prior art keywords
roll
drive
unwinding
unwound
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP06124298A
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German (de)
French (fr)
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EP1798172A2 (en
EP1798172A3 (en
Inventor
Hermann Albert Stitz
Josef Nelles
Alexander Klupp
Manfred Dr. Mager
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Voith Patent GmbH
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Voith Patent GmbH
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Publication date
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Publication of EP1798172A3 publication Critical patent/EP1798172A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4146—Winding involving particular drive arrangement
    • B65H2301/41466—Winding involving particular drive arrangement combinations of drives
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/944—Multiple power sources for one mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or package

Definitions

  • the invention relates to a device for unwinding a material web, in particular a paper or board web, from a roll, for subsequent cutting in the longitudinal direction and for subsequent winding on a plurality of adjacent mailing rolls.
  • the invention also relates to a method for unwinding a material web, in particular a paper or board web from a roll, in particular for subsequent cutting in the longitudinal direction and for subsequent winding on a plurality of adjacent shipping rolls.
  • Such a device is known in the art and is used for unwinding a web of material, which is then cut by one or more cutting devices in the longitudinal direction and divided into individual webs, to coincidewickeit then on cores to so-called Varsandrollen.
  • Carrier roll winding machines have two driven carrier rolls, on which the winding rolls rest during winding next to each other with aligned sleeves.
  • the carrier roll winding machines have a Roflenaus tenuvorides that emit a set fertiggewickeiter winding rolls from the roll bed formed by the two support rollers at a roll change. The finished set of winding rolls is thereby pressed by the ejection device on the crest of a support roller away on a lowering platform.
  • the winding drum i. H. the winding roll, regeneratively braked.
  • From the EP-A-1792859 is a method for changing Tambouren in a roll winding device, in which at the end of a winding sequence a web of material (2) donating and driven drum is delayed until it stops, then the resting web is severed in the reel winding device and then a new, from a new Tambour dispensed material web is introduced into the roll winding device, wherein a beginning (8) of the new material web by means of an auxiliary device in a predetermined width, in particular in full width, is subtracted from the new spool.
  • a secondary drive is coupled to the driven by a prime mover drum that the primary drive is uncoupled from the drum and preferably decelerated to a stop that at the same time, at least overlapping in time or thereafter the driven by the secondary drive spool is brought from a main unwinding position in a Endabwickelposition that then the new, carrying the new material web spool in the Hauptabwickelposition brought and the prime mover is coupled, then that the auxiliary device subtracts the beginning of the new material web in a predetermined width, in particular full width of the new spool and moves to a waiting position for the upcoming web feed that at the same time, at least overlapping in time or thereafter the moving drum is decelerated to a standstill with the aid of the secondary drive, that thereafter the resting material web is severed in the roll winding device, that subsequently the new material web delivered by the new drum is introduced into the roll winding device by means
  • This object is achieved in a device having a first and a second unwinding position in which the web is successively unwound from the roll, wherein the web in the first unwinding position by a first drive and in the second unwinding position by a second drive of the Winding roll is unwound.
  • the invention makes it unnecessary to install a high drive power; At the same time, costs can be saved.
  • the first drive in relation to the second drive allows high torque.
  • the first drive comprises a motor and a gearbox interposed between the motor and the winding roller at the first unwinding position.
  • the transmission can shift to a lower gear stage. If the diameter of the winding roll or the drum has reduced so far that this can be taken from the engine, which is arranged regularly at the second unwinding position, then this is engaged at the other end of the winding roll.
  • the switching between the two motors is preferably carried out during the set change; ie, when a set of shipping rolls is finished wound from the strips of unwound web.
  • the second drive allows a high speed in relation to the first drive.
  • means for sucking, separating and / or splicing the web in the area between the two unwinding positions can be installed.
  • the method is characterized in that the winding roll is unwound by the first drive until a set of shipping rolls has arisen.
  • the second drive is moved from the second position to the first position as soon as a roller present in the first position is completely unwound.
  • the second drive is coupled to the shaft of the roller opposite the first drive in the first unwinding position.
  • the second drive serves as a drive.
  • roller after being unwound to the predetermined extent, is moved together with the second drive to the second unwinding position and from this to the end is handled.
  • a web 6 is unwound during the unwinding of the full winding roller 3 at the first unwinding position 2 by a first drive 5.
  • the material web 6 is guided past a splicing device 7.
  • the winding rollers 3, 4 are respectively via bearings 8, 9 and 10, 11 at least substantially in one plane on a support device 12th Simultaneously with the still full winding roll 3 (full tambour, "mother roll"), the winding roll 4, which is already substantially unwound, unwound in the winding position 2 by a second drive 13 to the end of a web 14, via a guide roller 15 and a splicer 16 is passed over.
  • the second drive 13 is dimensioned by its power so that its drive motor for generating a small torque just sufficient to allow the remaining processing of the web 14 of the winding roller 4 in the unwinding position 2.
  • the first drive 5 is dimensioned such that its torque is sufficient to unwind the material web 6 from the still full winding roller 3. The winding roll 3 is thereby unwound by the first drive 5 until the first set of shipping rolls (finished rolls) has arisen.
  • the first drive 5 may include a motor and a switched between the winding roll and the engine gear instead of a high torque motor having two or more switching stages and switches depending on the diameter of the winding roll in the corresponding switching stage, so that the engine always is loaded with an approximately equal load by the torque of the winding roll.
  • a further step is, shortly before the web 14 is unwound from the winding roll 4, this separated by (not shown) separating or - cutting device to connect an end 17 of the web 14 with a beginning 18 of the web 6.
  • This is therefore guided by the splicing device 7 in the direction of an arrow 19 in the vicinity of the splicing device 16 and connected by means of at least one adhesive strip or glue with the material web 14.
  • the winding roller 4 is now ready to be lifted out of the unwinding position 2.
  • next step For this purpose, first the second drive 13 is pulled out of a coupling, which is arranged in the region of the bearing 11.
  • the second drive 13 is moved in the direction of an arrow 20 to the winding roller 3 in the unwinding position 2; There he is coupled together via an integrated coupling in the region of the bearing 9 with the winding roller 3.
  • the winding roller 4 is removed from the unwinding position 2 in the direction of an arrow 21.
  • this is still driven by the first drive 5, as required according to the winding circumference of the winding roll 3.
  • the unwinding position 2 is initially empty. Now that the first roll of shipping rolls has been finished, a first change of set takes place, ie the single sheets are separated, the litter is ejected and the new web starts are fastened to a new set of tubes.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)

Abstract

There are two unwinding positions where the web (6, 14) is taken from the roll (3, 4) in succession. The web is unwound by first and second drives successively, in these positions. The first drive has greater torque than the second. The first drive comprises a motor connected through a gear to the roll. The second drive enables greater speed than the first. Between the positions, equipment for suction, parting and/or splicing (7, 16) the web is provided. The two unwinding positions are arranged in succession, in the running direction of the web. An independent claim is included for the corresponding method.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Abwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn, von einer Rolle, zum anschließenden Schneiden in Längsrichtung und zum darauf folgenden Aufwickeln auf eine Mehrzahl von nebeneinander liegenden Versandrollen.The invention relates to a device for unwinding a material web, in particular a paper or board web, from a roll, for subsequent cutting in the longitudinal direction and for subsequent winding on a plurality of adjacent mailing rolls.

Weiterhin bezieht sich die Erfindung auch auf ein Verfahren zum Abwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn von einer Rolle, insbesondere zum anschließenden Schneiden in Längsrichtung und zum darauf folgenden Aufwickeln auf eine Mehrzahl von nebeneinander liegenden Versandrollen.Furthermore, the invention also relates to a method for unwinding a material web, in particular a paper or board web from a roll, in particular for subsequent cutting in the longitudinal direction and for subsequent winding on a plurality of adjacent shipping rolls.

Eine derartige Vorrichtung ist im Stand der Technik bekannt und wird eingesetzt zum Abwickeln einer Materialbahn, die anschließend durch eine oder mehrere Schneideinrichtungen in Längsrichtung geschnitten und in Einzelbahnen unterteilt wird, um dann auf Wickelhülsen zu sogenannten Varsandrollen aufgewickeit zu werden. Hierzu dienen beispielsweise Stützwafzen- oder. Tragwalzen-Wickelmaschinen. Tragwalzen-Wickelmaschinen weisen zwei angetriebene Tragwalzen auf, auf denen die Wickelrollen beim Aufwickeln nebeneinander mit fluchtenden Hülsen aufliegen. Die Tragwalzen-Wickelmaschinen weisen eine Roflenausstoßvorrichtung auf, die bei einem Rollenwechsel einen Satz fertiggewickeiter Wickelrollen aus dem von den beiden Tragwalzen gebildeten Walzenbett ausstoßen. Der fertige Satz Wickelrollen wird dabei von der Ausstoßvorrichtung über den Scheitel einer Tragwalze hinweg auf eine Absenkbühne gedrückt.Such a device is known in the art and is used for unwinding a web of material, which is then cut by one or more cutting devices in the longitudinal direction and divided into individual webs, to aufgewickeit then on cores to so-called Varsandrollen. Serve this example Stützwafzen- or. Carrier roll winding machines. Carrier roll winding machines have two driven carrier rolls, on which the winding rolls rest during winding next to each other with aligned sleeves. The carrier roll winding machines have a Roflenausstoßvorrichtung that emit a set fertiggewickeiter winding rolls from the roll bed formed by the two support rollers at a roll change. The finished set of winding rolls is thereby pressed by the ejection device on the crest of a support roller away on a lowering platform.

Bei Vorrichtungen zum Abwickeln einer Materialbahn, wie sie aus dem Stand der Technik bekannt sind, wird, um die für den Betrieb erforderliche Bahnspannung der Materialbahn aufrecht zu erhalten, der Wickeltambour, d. h. die Wickelrolle, generatorisch gebremst.In apparatuses for unwinding a material web, as known from the prior art, in order to maintain the web tension required for the operation of the material web, the winding drum, i. H. the winding roll, regeneratively braked.

Besonders bei großen Wickelrollen führt dies zu hohen installierten Leistungen. Bei voller Wickelrolle muss ein großes Moment aufgebracht werden; bei kleinen Durchmessern von Wickelrollen entstehen hohe Drehzahlen, um dieselbe Bahngeschwindigkeit der abzuwickelnden Materialbahn aufrecht zu erhalten. Andererseits treten hohes Antriebsmoment und hohe Drehzahlen nicht gleichzeitig auf. Dennoch muss ein Generator installiert werden, welcher imstande ist, sowohl die hohen Drehzahlen als auch die hohen Drehmomente aufzubringen. Manchmal wird auch ein Getriebe mit fester Untersetzung zwischen dem Generator und dem Tambour zugeschaltet.Especially with large bobbins this leads to high installed capacities. When the roll is full, a big moment has to be applied; at small diameters of bobbins high speeds arise to maintain the same web speed of the unwinding web. On the other hand, high drive torque and high speeds do not occur simultaneously. Nevertheless, a generator must be installed, which is able to apply both the high speeds and the high torques. Sometimes a transmission with fixed reduction between the generator and the drum is switched on.

Aus der EP-A-1792859 ist ein Verfahren zum Wechseln von Tambouren in einer Rollenwickeleinrichtung, bei dem gegen Ende einer Wickelsequenz ein eine Materialbahn (2) abgebender und angetriebener Tambour bis zum Stillstand verzögert wird, danach die ruhende Materialbahn in der Rollenwickeleinrichtung durchtrennt wird und anschließend eine neue, von einem neuen Tambour abgegebene Materialbahn in die Rollenwickeleinrichtung eingeführt wird, wobei ein Anfang (8) der neuen Materialbahn mittels einer Hilfseinrichtung in einer vorbestimmten Breite, insbesondere in voller Breite, von dem neuen Tambour abgezogen wird. Das erfindungsgemäße Verfahren in dieser Weröffentlichung ist dadurch gekennzeichnet, dass gegen Ende der Wickelsequenz ein Sekundärantrieb in den von einem Primärantrieb angetriebenen Tambour angekuppelt wird, dass der Primärantrieb aus dem Tambour abgekuppelt und vorzugsweise bis zum Stillstand abgebremst wird, dass zeitgleich, zumindest zeitlich überlappend oder danach der von dem Sekundärantrieb angetriebene Tambour von einer Hauptabwickelposition in eine Endabwickelposition gebracht wird, dass anschließend der neue, die neue Materialbahn tragende Tambour in die Hauptabwickelposition gebracht und der Primärantrieb angekuppelt wird, dass hernach die Hilfseinrichtung den Anfang der neuen Materialbahn in einer vorbestimmten Breite, insbesondere in voller Breite, von dem neuen Tambour abzieht und in eine Warteposition für den anstehenden Bahneinzug verfährt, dass zeitgleich, zumindest zeitlich überlappend oder danach der laufende Tambour mit Hilfe des Sekundärantriebs bis zum Stillstand verzögert wird, dass danach die ruhende Materialbahn in der Rollenwickeleinrichtung durchtrennt wird, dass anschließend die neue, von dem neuen Tambour abgegebene Materialbahn mittels der Hilfseinrichtung in die Rollenwickeleinrichtung eingeführt wird und dass nunmehr mit dem Wickeln der neuen, von dem neuen Tambour abgegebenen Materialbahn in der Rollenwickeleinrichtung begonnen wird. Dokument US 2004/011894 offenbart ein verfahren zum Abwickeln einer Materialbahn gemäß dem Oberbegriff des Anspruchs 1.From the EP-A-1792859 is a method for changing Tambouren in a roll winding device, in which at the end of a winding sequence a web of material (2) donating and driven drum is delayed until it stops, then the resting web is severed in the reel winding device and then a new, from a new Tambour dispensed material web is introduced into the roll winding device, wherein a beginning (8) of the new material web by means of an auxiliary device in a predetermined width, in particular in full width, is subtracted from the new spool. The inventive method in this Werublituation is characterized in that at the end of the winding sequence, a secondary drive is coupled to the driven by a prime mover drum that the primary drive is uncoupled from the drum and preferably decelerated to a stop that at the same time, at least overlapping in time or thereafter the driven by the secondary drive spool is brought from a main unwinding position in a Endabwickelposition that then the new, carrying the new material web spool in the Hauptabwickelposition brought and the prime mover is coupled, then that the auxiliary device subtracts the beginning of the new material web in a predetermined width, in particular full width of the new spool and moves to a waiting position for the upcoming web feed that at the same time, at least overlapping in time or thereafter the moving drum is decelerated to a standstill with the aid of the secondary drive, that thereafter the resting material web is severed in the roll winding device, that subsequently the new material web delivered by the new drum is introduced into the roll winding device by means of the auxiliary device and that now with the winding new, issued by the new spool material web is started in the reel winder. document US 2004/011894 discloses a method for unwinding a web according to the preamble of claim 1.

Es ist die Aufgabe der Erfindung, ein verbessertes Verfahren zum Abwickeln der Materialbahn zu schaffen.It is the object of the invention to provide an improved method for unwinding the material web.

Diese Aufgabe wird bei einer Vorrichtung gelöst, die eine erste und eine zweite Abwickelposition aufweist, in denen die Materialbahn nacheinander von der Rolle abwickelbar ist, wobei die Materialbahn in der ersten Abwickelposition durch einen ersten Antrieb und in der zweiten Abwickelposition durch einen zweiten Antrieb von der Wickelrolle abwickelbar ist. Durch die Erfindung erübrigt es sich, eine hohe Antriebsleistung zu installieren; gleichzeitig lassen sich Kosten einsparen.This object is achieved in a device having a first and a second unwinding position in which the web is successively unwound from the roll, wherein the web in the first unwinding position by a first drive and in the second unwinding position by a second drive of the Winding roll is unwound. The invention makes it unnecessary to install a high drive power; At the same time, costs can be saved.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen, der Beschreibung und den Zeichnungen.Advantageous developments emerge from the subclaims, the description and the drawings.

Von Vorteil ist eine Vorrichtung, in der der erste Antrieb im Verhältnis zum zweiten Antrieb ein hohes Drehmoment ermöglicht. Zusätzlich oder alternativ lässt sich vorsehen, dass der erste Antrieb einen Motor und ein zwischen dem Motor und der Wickelrolle an der ersten Abwickelposition zwischengeschaltetes Getriebe umfasst. Wenn sich der Durchmesser der Wickelrolle verkleinert, kann das Getriebe in eine niedrigere Getriebestufe umschalten. Wenn sich der Durchmesser der Wickelrolle oder des Tambours soweit verkleinert hat, dass dieser von dem Motor, der regulär an der zweiten Abwickelposition angeordnet ist, übernommen werden kann, dann wird dieser an der anderen Stirnseite der Wickelrolle eingekuppelt. Das Umschalten zwischen den beiden Motoren erfolgt vorzugsweise beim Setwechsel; d. h., wenn ein Satz Versandrollen fertig aus den Streifen der abgewickelten Materialbahn aufgewickelt ist.An advantage is a device in which the first drive in relation to the second drive allows high torque. Additionally or alternatively, it may be provided that the first drive comprises a motor and a gearbox interposed between the motor and the winding roller at the first unwinding position. As the diameter of the winding roll decreases, the transmission can shift to a lower gear stage. If the diameter of the winding roll or the drum has reduced so far that this can be taken from the engine, which is arranged regularly at the second unwinding position, then this is engaged at the other end of the winding roll. The switching between the two motors is preferably carried out during the set change; ie, when a set of shipping rolls is finished wound from the strips of unwound web.

Vorzugsweise ermöglicht der zweite Antrieb im Verhältnis zum ersten Antrieb eine hohe Drehzahl.Preferably, the second drive allows a high speed in relation to the first drive.

Mit Vorteil lassen sich Mittel zum Ansaugen, zum Trennen und/oder zum Spleißen der Materialbahn im Bereich zwischen den beiden Abwickelpositionen installieren.Advantageously, means for sucking, separating and / or splicing the web in the area between the two unwinding positions can be installed.

Von Vorteil ist es ebenso, wenn die beiden Abwickelpositionen in Bahnlaufrichtung hintereinander angeordnet sind.It is also advantageous if the two unwinding positions are arranged one behind the other in the web running direction.

Erfindungsgemäß ist das Verfahren dadurch gekennzeichnet, dass die Wickelrolle dabei so lange durch den ersten Antrieb abgewickelt wird, bis ein Satz Versandrollen entstanden ist.According to the invention, the method is characterized in that the winding roll is unwound by the first drive until a set of shipping rolls has arisen.

In einer vorteilhaften Ausgestaltung des Verfahrens ist vorgesehen, dass der zweite Antrieb von der zweiten Position in die erste Position verfahren wird, sobald eine in der ersten Position vorhandene Rolle vollständig abgewickelt ist.In an advantageous embodiment of the method, it is provided that the second drive is moved from the second position to the first position as soon as a roller present in the first position is completely unwound.

Vorteilhaft ist es auch, wenn der zweite Antrieb an dem dem ersten Antrieb gegenüberliegenden Wellenzapfen der Rolle in der ersten Abwickelposition angekuppelt wird. Dadurch sind die Voraussetzungen dafür geschaffen, um, nachdem der erste Antrieb von der Rolle abgekuppelt ist, der zweite Antrieb als Antrieb dient.It is also advantageous if the second drive is coupled to the shaft of the roller opposite the first drive in the first unwinding position. As a result, the conditions are created for, after the first drive is uncoupled from the roll, the second drive serves as a drive.

Weiterhin ist mit Vorteil vorgesehen, dass die Rolle, nachdem sie bis zu dem vorgegebenen Umfang abgewickelt ist, zusammen mit dem zweiten Antrieb zu der zweiten Abwickelposition verfahren wird und von diesem bis zum Ende abgewickelt wird.Furthermore, it is advantageously provided that the roller, after being unwound to the predetermined extent, is moved together with the second drive to the second unwinding position and from this to the end is handled.

Von Vorteil ist es ebenfalls, dass, während die Rolle zu der zweiten Abwickelposition verfahren wird, eine neue Rolle an der ersten Abwickelposition eingesetzt wird, mit einer Kupplung im Bereich eines an einem Wellenzapfen angebrachten Lagers an den ersten Antrieb angekuppelt und anschließend bis zu dem vorgegebenen Umfang abgewickelt wird.It is also advantageous that, while the roll is moved to the second unwinding position, a new roll is inserted at the first unwinding position, coupled to the first drive with a coupling in the region of a bearing mounted on a shaft journal, and then up to the predetermined one Scope is handled.

Zusätzlich wird in vorteilhafter Weise vorgesehen, dass, wenn das Ende der von der Rolle in der zweiten Abwickelposition abzuwickelnden Materialbahn erreicht wird, diese durch Spleißen mittels mindestens eines Klebstreifens oder Leim mit der von der Rolle in der ersten Abwickelposition abzuwickelnden Materialbahn verbunden wird. Insgesamt wird durch die Erfindung der Tambourwechsel beschleunigt.In addition, it is advantageously provided that, when the end of the material web to be unwound from the roll in the second unwinding position is reached, it is joined by splicing by means of at least one adhesive strip or glue to the material web to be unwound from the roll in the first unwinding position. Overall, the spool change is accelerated by the invention.

Nachstehend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnungen näher erläutert.The invention will be explained in more detail in an embodiment with reference to the drawings.

Es zeigen

Fig. 1a-Fig. 5b
jeweils Draufsichten und zugehörige stirnseitige Ansichten einer Vorrichtung mit zwei Abwickelpositionen zum Abwickeln einer Rolle einer Materialbahn in verschiedenen Stadien des Abwickelvorgangs.
Show it
Fig. 1a-Fig. 5b
respectively plan views and associated end views of a device with two unwinding positions for unwinding a roll of a web at various stages of the unwinding process.

In einer Vorrichtung mit zwei Wickelpositionen 1, 2 (Fig. 1a, b) zum Abwickeln von Wickelrollen 3, 4 wird während des Abwickelvorgangs von der vollen Wickelrolle 3 an der ersten Abwickelposition 2 durch einen ersten Antrieb 5 eine Materialbahn 6 abgewickelt. Dabei wird die Materialbahn 6 an einer Spleißvorrichtung 7 vorbeigeführt.In a device with two winding positions 1, 2 ( Fig. 1a, b) for unwinding bobbins 3, 4 a web 6 is unwound during the unwinding of the full winding roller 3 at the first unwinding position 2 by a first drive 5. In this case, the material web 6 is guided past a splicing device 7.

Die Wickelrollen 3, 4 liegen jeweils über Lager 8, 9 bzw. 10, 11 wenigstens im wesentlichen in einer Ebene auf einer Tragvorrichtung 12. Gleichzeitig mit der noch vollen Wickelrolle 3 (Volltambour, "Mutterrolle") wird die Wickelrolle 4, die im wesentlichen bereits abgewickelt ist, in der Wickelposition 2 durch einen zweiten Antrieb 13 bis zum Ende einer Materialbahn 14 abgewickelt, die über eine Umlenkwalze 15 und an einer Spleißvorrichtung 16 vorbei geführt wird.The winding rollers 3, 4 are respectively via bearings 8, 9 and 10, 11 at least substantially in one plane on a support device 12th Simultaneously with the still full winding roll 3 (full tambour, "mother roll"), the winding roll 4, which is already substantially unwound, unwound in the winding position 2 by a second drive 13 to the end of a web 14, via a guide roller 15 and a splicer 16 is passed over.

Der zweite Antrieb 13 ist dabei von seiner Leistung so bemessen, dass sein Antriebsmotor zur Erzeugung eines kleinen Drehmoments gerade noch ausreicht, um die restliche Abwicklung der Materialbahn 14 von der Wickelrolle 4 in der Abwickelposition 2 zu ermöglichen. Im Unterschied zu dem zweiten Antrieb 13 ist der erste Antrieb 5 so bemessen, dass sein Drehmoment ausreichend ist, um die Materialbahn 6 auch von der noch vollen Wickelrolle 3 abzuwickeln. Die Wickelrolle 3 wird dabei solange durch den ersten Antrieb 5 abgewickelt, bis der erste Satz Versandrollen (Fertigrollen) entstanden ist.The second drive 13 is dimensioned by its power so that its drive motor for generating a small torque just sufficient to allow the remaining processing of the web 14 of the winding roller 4 in the unwinding position 2. In contrast to the second drive 13, the first drive 5 is dimensioned such that its torque is sufficient to unwind the material web 6 from the still full winding roller 3. The winding roll 3 is thereby unwound by the first drive 5 until the first set of shipping rolls (finished rolls) has arisen.

Der erste Antrieb 5 kann anstelle eines Motors mit einem hohen Drehmoment auch einen Motor und ein zwischen der Wickelrolle und dem Motor geschaltetes Getriebe umfassen, das zwei oder mehr Schaltstufen aufweist und je nach dem Durchmesser der Wickelrolle in die entsprechende Schaltstufe schaltet, damit der Motor immer mit einer annähernd gleichen Belastung durch das Drehmoment der Wickelrolle belastet wird.The first drive 5 may include a motor and a switched between the winding roll and the engine gear instead of a high torque motor having two or more switching stages and switches depending on the diameter of the winding roll in the corresponding switching stage, so that the engine always is loaded with an approximately equal load by the torque of the winding roll.

In einem weiteren Schritt (Fig. 2a, b) wird, kurz bevor die Materialbahn 14 von der Wickelrolle 4 abgewickelt ist, diese durch (eine nicht dargestellte) Trenn- oder - Schneidvorrichtung getrennt, um ein Ende 17 der Materialbahn 14 mit einem Anfang 18 der Materialbahn 6 zu verbinden. Dieser wird daher durch die Spleißvorrichtung 7 in Richtung eines Pfeils 19 in die Nähe der Spleißvorrichtung 16 geführt und mittels mindestens eines Klebstreifens oder mit Leim mit der Materialbahn 14 verbunden. Dadurch ist die Wickelrolle 4 nun bereit, um aus der Abwickelposition 2 herausgehoben zu werden.In a further step ( Fig. 2a, b) is, shortly before the web 14 is unwound from the winding roll 4, this separated by (not shown) separating or - cutting device to connect an end 17 of the web 14 with a beginning 18 of the web 6. This is therefore guided by the splicing device 7 in the direction of an arrow 19 in the vicinity of the splicing device 16 and connected by means of at least one adhesive strip or glue with the material web 14. As a result, the winding roller 4 is now ready to be lifted out of the unwinding position 2.

Im nächsten Schritt (Fig. 3a, b) wird hierfür zunächst der zweite Antrieb 13 aus einer Kupplung herausgezogen, die im Bereich des Lagers 11 angeordnet ist. Der zweite Antrieb 13 wird in Richtung eines Pfeils 20 zu der Wickelrolle 3 in der Abwickelposition 2 bewegt; dort wird er über eine im Bereich des Lagers 9 integrierte Kupplung mit der Wickelrolle 3 zusammengekuppelt. Sodann wird die Wickelrolle 4 aus der Abwickelposition 2 in Richtung eines Pfeils 21 entfernt. Jedoch wird diese solange noch über den ersten Antrieb 5 angetrieben, wie es entsprechend dem Wickelumfang der Wickelrolle 3 erforderlich ist.In the next step ( Fig. 3a, b) For this purpose, first the second drive 13 is pulled out of a coupling, which is arranged in the region of the bearing 11. The second drive 13 is moved in the direction of an arrow 20 to the winding roller 3 in the unwinding position 2; There he is coupled together via an integrated coupling in the region of the bearing 9 with the winding roller 3. Then, the winding roller 4 is removed from the unwinding position 2 in the direction of an arrow 21. However, this is still driven by the first drive 5, as required according to the winding circumference of the winding roll 3.

Nachdem der zweite Antrieb 13 in Richtung eines Pfeils 22 (Fig. 4a, b) in einer innerhalb oder in der Nähe des Lagers 9 angeordneten Kupplung der Wickelrolle 3 im Bereich des Wickelposition 1 eingekuppelt ist und nachdem der zweite Antrieb 13 begonnen hat, die Wickelrolle 3 anzutreiben, wird der erste Antrieb 5 aus einer im Bereich des Lagers 8 angeordneten Kupplung in Richtung eines Pfeils 23 ausgekuppelt. Sodann wird die Wickelrolle 3, während sie gleichzeitig durch den zweiten Antrieb 13 angetrieben wird, zusammen mit diesem in Richtung eines Pfeils 24 in die Position 2 bewegt. Gleichzeitig wird die Spleißvorrichtung 7 in Richtung eines Pfeils 25 in ihre ursprüngliche Position unterhalb der Wickelposition 1 zurückbewegt.After the second drive 13 in the direction of an arrow 22 (FIG. Fig. 4a . b) is coupled in a arranged within or in the vicinity of the bearing 9 coupling of the winding roller 3 in the winding position 1 and after the second drive 13 has started to drive the winding roller 3, the first drive 5 is arranged in the region of the bearing 8 coupling disengaged in the direction of an arrow 23. Then, while being simultaneously driven by the second drive 13, the winding roll 3 is moved together with it in the direction of an arrow 24 to the position 2. At the same time, the splicing device 7 is moved back in the direction of an arrow 25 to its original position below the winding position 1.

Anschließend wird die Wickelrolle 3 durch den zweiten Antrieb 13 in der Wickelposition 2 (Fig. 5a, b), in der sich ursprünglich die Wickelrolle 4 befunden hatte, zu Ende abgewickelt. Währenddessen wird eine neue Wickelrolle 26 in Richtung eines Pfeils 27 in die Wickelposition 1 gebracht, in der sich vorher die Wickelrolle 3 befunden hatte, und der erste Antrieb 5 wird eingekuppelt. Anschließend laufen dieselben Abwickelvorgänge ab, wie sie vorhergehend dargestellt wurden.Subsequently, the winding roller 3 by the second drive 13 in the winding position 2 ( Fig. 5a, b) in which originally the winding roll 4 was located had finished, finished. Meanwhile, a new winding roll 26 is brought in the direction of arrow 27 in the winding position 1, in which previously had the winding roll 3, and the first drive 5 is engaged. Subsequently, the same unwinding processes proceed as previously described.

Über den bekannten und vorstehend beschriebenen Abwickelvorgang hinaus können natürlich noch ergänzende Abwickelvorgänge mit der Vorrichtung realisiert werden. Ein derartiger ergänzender Abwickelvorgang liegt beispielsweise dann vor, wenn die Anlage nach einem längeren Wartungsstillstand wieder angefahren werden soll. Zu seiner besseren Beschreibung können selbstverständlich die Fig. 1a bis 5b herangezogen werden.Of course, in addition to the known unwinding process described above, additional unwinding operations can be realized with the device. Such a supplementary unwinding process is present, for example, when the system is to be restarted after a prolonged maintenance shutdown. For its better description, of course, the Fig. 1a to 5b be used.

In die Abwickelposition 1 wird ein neuer Volltambour ("Mutterrolle") eingelegt. Der Einfachheit halber gehen wir dabei davon aus, dass aus diesem Volltambour insgesamt zwei Fertigrollenwürfe ("Versandrolle") hergestellt werden können. Der Bediener zieht nun die mit einer "Spitze" versehene Bahn von der Mutterrolle ab, die dazu von einem ersten Antrieb 5 motorisch in Drehung versetzt worden ist, und führt sie in bekannter Weise semiautomatisch durch die gesamte Anlage bis in die Aufwickelstation. Dort wird sie, sobald sie infolge vorheriger Aktivierung der Schneidpartie in Einzelbahnen aufgeteilt worden, an dem im Wickelbett liegenden Hülsensatz befestigt. Jetzt kann der eigentliche Produktionsprozess beginnen, bei dem die Einzelbahnen unter Zug - der erste Antrieb 5 arbeitet zu diesem Zweck generatorisch - um die Hülsen gewickelt werden.In the unwinding position 1, a new Volltambour ("mother role") is inserted. For the sake of simplicity, we assume that a total of two finished roll rolls ("shipping roll") can be produced from this full-bodied roll. The operator now pulls the provided with a "tip" path from the parent roll, which has been set to motor by a first drive 5 in rotation, and leads them in a known manner semiautomatic through the entire system to the winding station. There it is, as soon as they have been divided into single tracks due to prior activation of the cutting section, attached to the lying in the winding bed sleeve set. Now, the actual production process can start, in which the individual webs under train - the first drive 5 works for this purpose as a generator - wrapped around the sleeves.

Die Abwickelposition 2 ist zunächst noch leer. Ist nun der erste Wurf Versandrollen fertig gewickelt, so findet ein erster Setwechsel statt, das heißt die Einzelbahnen werden getrennt, der Wurf wird ausgestoßen und die neuen Bahnanfänge werden an einem neuen Hülsensatz befestigt.The unwinding position 2 is initially empty. Now that the first roll of shipping rolls has been finished, a first change of set takes place, ie the single sheets are separated, the litter is ejected and the new web starts are fastened to a new set of tubes.

Nach dem Setwechsel-bedingten Stillstand wird die Produktion des zweiten Versandrollenwurfs aufgenommen. Das Bahnmaterial für diesen Satz stammt nach wie vor von der in der Abwickelposition 1 gelagerten Mutterrolle. Die zweite Abwickelposition 2 ist derweil immer noch leer.After the set change-related standstill, the production of the second dispatch roll throw is recorded. The web material for this set comes still from the parent roll stored in the unwinding position 1. Meanwhile, the second unwinding position 2 is still empty.

Im Zuge des zweiten Setwechsels - also bei Stillstand der Anlage - wird nun der zweite Antrieb 13, der vorher in eine Position gefahren worden ist, in der er mit der Mittenachse der ersten Mutterrolle 3 in der ersten Abwickelposition 1 fluchtet, mit der "Rest"-Mutterrolle 3 gekuppelt. Sodann wird der erste Antrieb 5 ausgekuppelt. Anschließend wird die "Rest"-Mutterrolle 3 zusammen mit dem zweiten Antrieb 13 aus ihrer bisherigen Abwickelposition 1 in die zweite Abwickelposition 2 überführt. Ist das geschehen, dann "geht die Produktion des zweiten Versandrollenwurfs los". Die erste Abwickelposition 1 ist dabei zunächst frei.In the course of the second change of set - ie at standstill of the system - is now the second drive 13, which has been previously moved to a position in which it is aligned with the center axis of the first mother roll 3 in the first unwinding position 1, with the "rest" Mother roll 3 coupled. Then, the first drive 5 is disengaged. Subsequently, the "residual" mother roll 3 is transferred together with the second drive 13 from its previous unwinding position 1 in the second unwinding position 2. Once that's done, then "the production of the second dispatch roll design starts". The first unwinding position 1 is initially free.

Während der zweite Wurf Versandrollen gewickelt wird, beschickt der Bediener die freie erste Abwickelposition 1 mit einem neuen Volltambour und bereitet diesen für den folgenden Splicevorgang vor. Da diese Vorbereitung bei laufender Maschine stattfindet, wird die bislang übliche deutlich abgekürzt - ein Vorteil, der in der Beschreibung vielleicht noch zusätzlich herauszustellen wäre. Ist nun der zweite Versandrollenwurf fast fertig gewickelt und die ursprüngliche Mutterrolle demgemäß fast leer, so wird in bekannter Weise die Restbahn der alten Mutterrolle mit der Bahn des neuen Volltambours verbunden. Der dritte Fertigrollenwurf geht also auf Bahnmaterial des neuen, in Abwickelposition 1 gelagerten Volltambours zurück. In der weiteren Folge wiederholen sich die oben angeführten Abläufe natürlich immer wieder.While the second roll of mailing rolls is being wound, the operator feeds the uncoiled first unwinding position 1 with a new master roll and prepares it for the subsequent splicing operation. Since this preparation takes place while the machine is running, the previously customary is clearly abbreviated - an advantage that might be further highlighted in the description. Now, if the second dispatch roll design almost finished wound and the original mother role accordingly almost empty, so the remaining track of the old mother roll is connected in a known manner with the path of the new full cylinder. The third finished rolling draft is therefore based on web material of the new, stored in unwinding position 1 Volltambours. In the following episode, the above-mentioned processes are of course repeated again and again.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Wickelpositionwinding position
22
Wickelpositionwinding position
33
Wickelrollereel
44
Wickelrollereel
55
Erster AntriebFirst drive
66
Materialbahnweb
77
Spleißvorrichtungsplicer
88th
Lagercamp
99
Lagercamp
1010
Lagercamp
1111
Lagercamp
1212
Tragvorrichtungcarrying device
1313
Zweiter AntriebSecond drive
1414
Materialbahnweb
1515
Umlenkwalzedeflecting
1616
Spleißvorrichtungsplicer
1717
EndeThe End
1818
AnfangBeginning
1919
Pfeilarrow
2020
Pfeilarrow
2121
Pfeilarrow
2222
Pfeilarrow
2323
Pfeilarrow
2424
Pfeilarrow
2525
Pfeilarrow
2626
Wickelrollereel
2727
Pfeilarrow

Claims (7)

  1. Method for unwinding a material web (14), in particular a paper or board web, from a roll (3, 4) for subsequent cutting in the longitudinal direction and for the following winding onto a plurality of shipping rolls lying beside one another, the material web (6, 14) being unwound from the roll (3), as long as the latter still has the complete size or a large size, at the first unwinding position (1) by a first drive (5) with a high torque or with a gearbox, and, as soon as the size of the roll (3) has decreased to a predefined maximum size, the material web (6, 14) being unwound at the second unwinding position (2) by a second drive (13) with a low torque,
    characterized in that
    the roll (3) is unwound by the first drive (5) until a set of shipping rolls has been produced.
  2. Method according to Claim 1,
    characterized in that
    the second drive (13) is moved from the second position (2) to the first position (1) as soon as a roll (3) present in the first position (1) has been unwound completely.
  3. Method according to Claim 1 or 2,
    characterized in that
    in the first unwinding position (1), the second drive (13) is coupled to the shaft journal of the roll (3) opposite to the first drive (5).
  4. Method according to Claim 2 or 3,
    characterized in that
    the first drive (5) is uncoupled from the roll (3) as soon as the second drive (13) has been coupled up.
  5. Method according to Claim 4,
    characterized in that
    after the roll (3) has been unwound as far as the predefined size, the said roll (3), together with the second drive (13), is moved to the second unwinding position (2) and is unwound as far as the end by the said second drive (13).
  6. Method according to Claim 5,
    characterized in that
    while the roll (3) is being moved to the second unwinding position (2), a new roll (26) is inserted at the first unwinding position (1) and is coupled to the first drive (5) by its shaft journal and is then unwound as far as the predefined size.
  7. Method according to one of Claims 1 to 6,
    characterized in that
    when the end of the material web (6, 14) to be unwound from the roll (3) in the second unwinding position (2) is reached, splicing by means of at least one adhesive strip or glue is used to join the said material web (6, 14) to the material web (6, 14) to be unwound from the roll (26) in the first winding position (1).
EP06124298A 2005-12-16 2006-11-17 Device and method for unwinding a material web Expired - Fee Related EP1798172B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005000187A DE102005000187A1 (en) 2005-12-16 2005-12-16 Device and method for unwinding a material web

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EP1798172A2 EP1798172A2 (en) 2007-06-20
EP1798172A3 EP1798172A3 (en) 2008-11-19
EP1798172B1 true EP1798172B1 (en) 2011-03-30

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AT (1) ATE503712T1 (en)
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121007B (en) * 2007-10-12 2010-06-15 Metso Paper Inc Method and arrangement in connection with a machine for unrolling a fiber web
FI20086059L (en) * 2008-11-10 2010-05-11 Metso Paper Inc The method in connection with a fiber web length cutter
FI121956B (en) * 2008-11-10 2011-06-30 Metso Paper Inc Procedure in conjunction with a fiber web roller cutter
EP2540649B1 (en) 2011-06-27 2013-12-11 Metso Paper Inc. Method and arrangement in connection with an unwinder
DE102012009190B4 (en) * 2012-05-10 2020-03-19 Sew-Eurodrive Gmbh & Co Kg System with a shaft to be driven and method for operating a system
DE102019111470B4 (en) * 2019-05-03 2022-06-02 Voith Patent Gmbh unwind station
DE102019111475B4 (en) * 2019-05-03 2022-01-13 Voith Patent Gmbh unwind station
DE102019111592A1 (en) 2019-05-06 2020-11-12 Voith Patent Gmbh Material web processing
CN110817533A (en) * 2019-11-28 2020-02-21 桐乡市麦西微服饰有限公司 Conveying device for composite cloth

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250709B (en) * 1961-07-08 1967-09-21
DE19722209A1 (en) * 1997-05-27 1998-12-03 Voith Sulzer Papiermasch Gmbh Unwind station for the continuous unwinding of a material web
US6820837B2 (en) * 2002-12-20 2004-11-23 Kimberly-Clark Worldwide, Inc. Unwind system with flying-splice roll changing
DE102005000173A1 (en) 2005-11-30 2007-06-06 Voith Patent Gmbh Method for changing tambours in a reel winder and reel winder

Also Published As

Publication number Publication date
EP1798172A2 (en) 2007-06-20
EP1798172A3 (en) 2008-11-19
ATE503712T1 (en) 2011-04-15
DE502006009199D1 (en) 2011-05-12
DE102005000187A1 (en) 2007-06-21

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