EP1127822A2 - Method for cutting through a material web and winding device to wind a material web - Google Patents

Method for cutting through a material web and winding device to wind a material web Download PDF

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Publication number
EP1127822A2
EP1127822A2 EP01102626A EP01102626A EP1127822A2 EP 1127822 A2 EP1127822 A2 EP 1127822A2 EP 01102626 A EP01102626 A EP 01102626A EP 01102626 A EP01102626 A EP 01102626A EP 1127822 A2 EP1127822 A2 EP 1127822A2
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EP
European Patent Office
Prior art keywords
material web
explosive
winding
roller
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01102626A
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German (de)
French (fr)
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EP1127822A3 (en
EP1127822B1 (en
Inventor
Gottfried Hendrix
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication date
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Publication of EP1127822A2 publication Critical patent/EP1127822A2/en
Publication of EP1127822A3 publication Critical patent/EP1127822A3/en
Application granted granted Critical
Publication of EP1127822B1 publication Critical patent/EP1127822B1/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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • 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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2246—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being supported on two rollers
    • 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
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y10T225/16—Transversely of continuously fed work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/371—Movable breaking tool

Definitions

  • the invention relates to a method for cutting a material web at the end of winding the material web to a winding roll.
  • the invention relates also a winding device for winding a material web to a winding roll with at least one Roller on which the winding roll with the interposition of the Material web is applied, and a separator.
  • the invention is based on a paper web described as an example of the material web. she is but also applicable to other material webs that can be treated in a comparable way.
  • Paper webs are almost endless in paper machines produced. To be manageable for a consumer later to be, they have to be wound into winding rolls. Such winding rolls have widths in the range from 0.3 to 3.8 m and diameter in the range of 0.8 up to 2.5 m. It is therefore necessary from time to time that Cut the web of material when the winding roll is yours has reached the desired final diameter resulting end of the paper web on the winding roll to define and start at a new role core fasten.
  • the object of the invention is to cut through the material web largely in a simple manner independent of the basis weight.
  • This task is carried out in a method of the type mentioned at the beginning Kind of solved by using an explosive wrapped between the material web and the winding roll and the explosive expands.
  • the disintegrant is preferably passed through a nip between the winding roll and a roller the winding roll with the interposition of the material web is present, and the explosive expands behind the Nip.
  • the winding roll clamps the incoming material web between himself and the roller. If the explosive expands, then the expansion is prevented necessary space is increased by the fact that material web is promoted. The web of material will rather held on. This has two advantages. On the one hand the reliability of the separation process is increased. On the other hand, the point at which it is separated is better Are defined.
  • a disintegrant is preferably used hose extending transversely to the material web, the is inflated.
  • the tube When the tube is inflated then it only blows up the outermost layer of material the winding reel because this is the weakest Place is. Notable negative repercussions on the No winding roll can be observed.
  • the inflation is preferably abrupt. The faster the inflation, the better the separation process.
  • the material web is cut whenever the speed of expansion exceeds the maximum speed of expansion of the material web.
  • a sudden inflation can also cut material webs that are stretchable within certain limits. Sudden inflation has been particularly successful with thicker materials, for example paper or cardboard with a basis weight of more than 120 g / m 2 .
  • the disintegrant is preferably used after severing the material web moves away from the winding roll. This not only cuts the web of material. Material web start and material web end will still be spatially separated from each other, so that the further treatment is simplified.
  • the task is also carried out by a winding device solved type mentioned in that the Separating device has an explosive that between Material web and winding rolls can be wrapped and is expandable there.
  • the explosive can then reach the top layer of the material web tearing on the winding reel while expanding.
  • the top layer forms the weakest link in the area around the explosive. So it is possible reliably cut even thick material webs.
  • the resulting tear edge even relatively "clean”. It does not form a straight line Line. But it is not really Senses torn.
  • the explosive is preferably designed as a hose, which can be filled with compressed air.
  • a hose which can be filled with compressed air.
  • Such one Hose has the advantage of being reusable Disintegrant forms. Compressed air is in most Manufacturing facilities available anyway, so for the actual separation process only relatively few additional Tools are needed.
  • the explosive is preferably arranged on holding arms, which can be tensioned by rotating the winding roll are.
  • the explosive is used in the course of a rotary movement the winding roll between the top layer of the material web and brought the circumference of the winding roll. If through this movement ensures that the holding arms are tensioned then the explosive after the Cut the material web automatically in the direction withdrawn from the tension. You can use the explosives then simultaneously use the beginning of the severed Lift the material web from the circumference of the winding roll. This has advantages if, for example an adhesive before cutting the material web applies to the material web. You no longer have to so be careful that the dividing line is outside of the tackified area. Even if behind the explosive, i.e. at the beginning of the new material web some glue remains, the material web with high reliability from the scope of the The winding roll is lifted when the explosive is withdrawn becomes.
  • the holding arms about the axis the roller can be pivoted.
  • this ensures that the explosive when conveying the web of material over the roller synchronously with the material web can be moved. So there is no friction between the web of material and the explosive that the Material web could damage.
  • the web of material will come off the surface remove the roller and take the disintegrant with you, so stretch your arms. Then when cutting by expanding the explosive, then the explosive is pulled back onto the roller and moves the beginning of the web of material there.
  • the disintegrant after cutting the material web on the roller holds on. So the explosive doesn't just become that used to cut the web of material and from the Lifting surface of the winding roll, it also serves to to hold the beginning of the material web on the roller. You can remove the winding roll from the roller, for example with the help of an ejection device, and then a new winding core to plant at the beginning bring the material web. After that you can do that Detach the disintegrant from the material web.
  • the roller preferably forms a support roller of a double support roller winder with a changing bed and that Explosive device is connected to a control device, which triggers the expansion in the changing bed. If the winding role lies in the changing bed, then it has two supports, in which the top layer of the web of material due to the weight of the winding roll on the two Carrier rollers is set. Now if you make sure that the disintegrant is expanded in the changing bed, then there is practically no possibility that the material web is fed from one of the two sides because it is between the winding roller and the is clamped in both carrier rollers. You can reach with one high reliability the severing of the material web exactly where you want them.
  • Fig. 1 shows a winding device 1 for winding a material web 2 to a winding roll 3.
  • the winding roll 3 rests in a changing bed 4, the by a first support roller 5 and a second support roller 6 is formed.
  • the material web overflows from above the first support roller 5 into the winding bed 4.
  • the winding roll 3 is with a small distance to the two support rollers 5, 6 shown.
  • the winding roll 3 is of course on the two support rollers 5, 6 and clamps the top layer of the material web 2 on its circumference 3 firmly.
  • a separating device is used to cut through the material web 7 provided which has a hose 8, arranged via a spring 9 on a pair of levers 10 the lever 10 (only one is shown, the other is at the other axial end the support roller 5) pivotable about an axis 11 are.
  • This axis 11 can, but does not have to, with the axis of the first support roller 5 coincide.
  • the hose is used to cut the material web 2 with means not shown on the material web 2 lowered and passes through it with the nip 12 between Winding roll and first support roller 5. This will the hose 8 between the uppermost layer of material and the underlying peripheral surface of the winding roll 3 pinched. If the hose 8 then into the winding bed 4 arrives, the springs 9 are tensioned because the hose 8 extends from the circumference of the first support roller 5 away.
  • the hose 8 is then filled with air very quickly, so that it expands suddenly.
  • the material web 2 is in the running direction in front of and behind the Hose 8 between the two support rollers 5, 6 and Winding roll 3 jammed.
  • the material web 2 is therefore before inflating the tube 8 firmly on the circumference of the Winding roll 3 on. Inflating the tube 8 means an expansion. Since there is basically no room for this Is available and no material web 2 is refilled can be, the environment of the hose 8 bursts at her weakest point. This is the material web 2. Due to the expansion of the hose, the material web becomes so to speak blown up.

Abstract

Device and process for severing a material web. The process includes winding the material web onto a reel and severing the material web using an expanding device. The device includes an expandable device for severing the material web, wherein the device is adapted to sever the material web after the material web is wound onto the reel.

Description

Die Erfindung betrifft ein Verfahren zum Durchtrennen einer Materialbahn am Ende eines Aufwickelns der Materialbahn zu einer Wickelrolle. Die Erfindung betrifft auch eine Wickelvorrichtung zum Aufwickeln einer Materialbahn zu einer Wickelrolle mit mindestens einer Walze, an der die Wickelrolle unter Zwischenlage der Materialbahn anliegt, und einer Trenneinrichtung.The invention relates to a method for cutting a material web at the end of winding the material web to a winding roll. The invention relates also a winding device for winding a material web to a winding roll with at least one Roller on which the winding roll with the interposition of the Material web is applied, and a separator.

Die Erfindung wird im folgenden anhand einer Papierbahn als Beispiel für die Materialbahn beschrieben. Sie ist aber auch bei anderen Materialbahnen anwendbar, die sich auf vergleichbare Weise behandeln lassen.The invention is based on a paper web described as an example of the material web. she is but also applicable to other material webs that can be treated in a comparable way.

Papierbahnen werden in Papiermaschinen quasi endlos produziert. Um für einen Verbraucher später handhabbar zu sein, müssen sie zu Wickelrollen aufgewickelt werden. Derartige Wickelrollen haben Breiten im Bereich von 0,3 bis 3,8 m und Durchmesser im Bereich von 0,8 bis 2,5 m. Es ist daher von Zeit zu Zeit notwendig, die Materialbahn zu durchtrennen, wenn die Wickelrolle ihren gewünschten Enddurchmesser erreicht hat, das dabei entstehende Ende der Papierbahn auf der Wickelrolle festzulegen und den Anfang an einem neuen Rollenkern zu befestigen.Paper webs are almost endless in paper machines produced. To be manageable for a consumer later to be, they have to be wound into winding rolls. Such winding rolls have widths in the range from 0.3 to 3.8 m and diameter in the range of 0.8 up to 2.5 m. It is therefore necessary from time to time that Cut the web of material when the winding roll is yours has reached the desired final diameter resulting end of the paper web on the winding roll to define and start at a new role core fasten.

Hierzu ist es bekannt, die Papierbahn vor dem Erreichen der eigentlichen Trennstelle zu perforieren. Die Wikkelrolle wird dann weitergedreht und zieht die Papierbahn weiter auf sich, bis die Perforationslinie die gewünschte Trennstelle erreicht hat. Dann wird die Papierbahn festgehalten und die Wickelrolle aus ihrer Wickelposition ausgestoßen. Dabei reißt die Papierbahn entlang der Perforationslinie durch.For this purpose, it is known to reach the paper web before it is reached to perforate the actual separation point. The winding roll is then rotated further and pulls the paper web continue on until the perforation line is the desired one Separation point has reached. Then the paper web held and the winding roll out of her Ejected winding position. The paper web breaks along the perforation line.

Diese Vorgehensweise hat sich im Grunde bewährt. Sie ist allerdings nur bis zu gewissen Flächengewichten bis zu etwa 100 bis 130 g/m2 anwendbar. Danach läßt sich das Trennen mit Hilfe einer Perforation nicht mit der notwendigen Zuverlässigkeit bewirken. Darüber hinaus ist die Perforation relativ aufwendig und damit teuer.This approach has basically proven itself. However, it can only be used up to certain grammages up to about 100 to 130 g / m 2 . After that, the perforation cannot be separated with the necessary reliability. In addition, the perforation is relatively complex and therefore expensive.

Der Erfindung liegt die Aufgabe zugrunde, das Durchtrennen der Materialbahn auf einfache Weise weitgehend unabhängig vom Flächengewicht zu bewirken.The object of the invention is to cut through the material web largely in a simple manner independent of the basis weight.

Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art dadurch gelöst, daß man ein Sprengmittel zwischen der Materialbahn und der Wickelrolle einwikkelt und das Sprengmittel expandiert.This task is carried out in a method of the type mentioned at the beginning Kind of solved by using an explosive wrapped between the material web and the winding roll and the explosive expands.

Man wickelt also das Sprengmittel zwischen der Wickelrolle und der äußersten Materialbahnlage ein. Wenn man das Sprengmittel dann expandiert, steht im Grunde kein Raum zum Ausdehnen des Sprengmittels zur Verfügung. Die Expansion des Sprengmittels bewirkt daher, daß die Umgebung des Sprengmittels an der "schwächsten" Stelle zerstört wird. Dies ist die äußerste Lage der Materialbahn. Die Materialbahn wird also durch die Expansion des Sprengmittels gesprengt, reißt also auf. Im Endeffekt ergibt sich damit ein Durchreißen, also ein Durchtrennen, der Materialbahn.So the explosive is wrapped between the winding roll and the outermost web position. If the explosive then expands, there is basically none Space for expanding the explosive is available. The Expansion of the explosive therefore causes the environment of the explosive at the "weakest" point gets destroyed. This is the outermost layer of the material web. The web of material is thus expanded of the explosive blown up, so tears open. In the end this results in a tear, i.e. a cut, the material web.

Vorzugsweise führt man das Sprengmittel durch einen Nip zwischen der Wickelrolle und einer Walze hindurch, an der die Wickelrolle unter Zwischenlage der Materialbahn anliegt, und expandiert das Sprengmittel hinter dem Nip. Die Wickelrolle klemmt die zulaufende Materialbahn zwischen sich und der Walze ein. Wenn das Sprengmittel expandiert, dann wird verhindert, daß sich der zur Expansion notwendige Raum dadurch vergrößert, daß Materialbahn nachgefördert wird. Die Materialbahn wird vielmehr festgehalten. Dies hat zwei Vorteile. Zum einen wird die Zuverlässigkeit des Trennvorgangs erhöht. Zum anderen ist die Stelle, an der getrennt wird, besser definiert.The disintegrant is preferably passed through a nip between the winding roll and a roller the winding roll with the interposition of the material web is present, and the explosive expands behind the Nip. The winding roll clamps the incoming material web between himself and the roller. If the explosive expands, then the expansion is prevented necessary space is increased by the fact that material web is promoted. The web of material will rather held on. This has two advantages. On the one hand the reliability of the separation process is increased. On the other hand, the point at which it is separated is better Are defined.

Mit Vorteil verwendet man ein wiederverwendbares Sprengmittel. Man spart sich also einen Austauschvorgang nach jedem Trennvorgang.It is advantageous to use a reusable one Explosives. So you save an exchange process after each separation process.

Bevorzugterweise verwendet man als Sprengmittel einen sich quer zur Materialbahn erstreckenden Schlauch, der aufgeblasen wird. Bei einem derartig aufblasbaren Schlauch ist das Risiko, daß die Wickelrolle an tiefer gelegenen Materialbahnlagen beschädigt wird, vergleichsweise gering. Wenn der Schlauch aufgeblasen wird, dann sprengt er lediglich die äußerste Materialbahnlage der Wickelrolle, weil dies die schwächste Stelle ist. Nennenswerte negative Rückwirkungen auf der Wickelrolle sind nicht zu beobachten.A disintegrant is preferably used hose extending transversely to the material web, the is inflated. In such an inflatable Hose is the risk that the winding roll at deeper lying material web layers is damaged, comparatively low. When the tube is inflated then it only blows up the outermost layer of material the winding reel because this is the weakest Place is. Notable negative repercussions on the No winding roll can be observed.

Vorzugsweise erfolgt das Aufblasen schlagartig. Je schneller das Aufblasen erfolgt, desto besser ist der Trennvorgang. Ein Durchtrennen der Materialbahn erfolgt immer dann, wenn die Expansionsgeschwindigkeit die maximale Dehngeschwindigkeit der Materialbahn übersteigt. Durch ein schlagartiges Aufblasen kann man auch Materialbahnen durchtrennen, die in gewissen Grenzen dehnbar sind. Insbesondere bei stärkeren Materialien, beispielsweise Papier oder Karton mit einem Flächengewicht von über 120 g/m2 hat ein schlagartiges Aufblasen gute Erfolge erzielt.The inflation is preferably abrupt. The faster the inflation, the better the separation process. The material web is cut whenever the speed of expansion exceeds the maximum speed of expansion of the material web. A sudden inflation can also cut material webs that are stretchable within certain limits. Sudden inflation has been particularly successful with thicker materials, for example paper or cardboard with a basis weight of more than 120 g / m 2 .

Vorzugsweise wird das Sprengmittel nach dem Durchtrennen der Materialbahn von der Wickelrolle weg bewegt. Damit wird nicht nur die Materialbahn durchtrennt. Materialbahnanfang und Materialbahnende werden auch noch räumlich voneinander getrennt, so daß die weitere Behandlung vereinfacht wird.The disintegrant is preferably used after severing the material web moves away from the winding roll. This not only cuts the web of material. Material web start and material web end will still be spatially separated from each other, so that the further treatment is simplified.

Die Aufgabe wird auch durch eine Wickelvorrichtung der eingangs genannten Art gelöst und zwar dadurch, daß die Trenneinrichtung ein Sprengmittel aufweist, daß zwischen Materialbahn und Wickelrollen einwickelbar und dort expandierbar ist.The task is also carried out by a winding device solved type mentioned in that the Separating device has an explosive that between Material web and winding rolls can be wrapped and is expandable there.

Wie oben im Zusammenhang mit dem Verfahren ausgeführt, kann das Sprengmittel dann die oberste Lage der Materialbahn auf der Wickelrolle beim Expanideren durchreißen. Die oberste Lage bildet das schwächste Glied in der Umgebung des Sprengmittels. Damit ist es möglich, auch dickere Materialbahnen zuverlässig zu durchtrennen. Erstaunlicherweise ist die dabei entstehende Reißkante sogar relativ "sauber". Sie bildet zwar keine gerade Linie. Sie ist aber auch nicht im eigentlichen Sinne zerfetzt.As stated above in connection with the procedure, the explosive can then reach the top layer of the material web tearing on the winding reel while expanding. The top layer forms the weakest link in the area around the explosive. So it is possible reliably cut even thick material webs. Amazingly, the resulting tear edge even relatively "clean". It does not form a straight line Line. But it is not really Senses torn.

Vorzugsweise ist das Sprengmittel als Schlauch ausgebildet, der mit Druckluft befüllbar ist. Ein derartiger Schlauch hat den Vorteil, daß er ein wiederverwendbares Sprengmittel bildet. Druckluft steht in den meisten Produktionsstätten ohnehin zur Verfügung, so daß für den eigentlichen Trennvorgang nur relativ wenige zusätzliche Hilfsmittel benötigt werden.The explosive is preferably designed as a hose, which can be filled with compressed air. Such one Hose has the advantage of being reusable Disintegrant forms. Compressed air is in most Manufacturing facilities available anyway, so for the actual separation process only relatively few additional Tools are needed.

Vorzugsweise ist das Sprengmittel an Haltearmen angeordnet, die durch eine Drehung der Wickelrolle spannbar sind. Das Sprengmittel wird im Zuge einer Drehbewegung der Wickelrolle zwischen die oberste Lage der Materialbahn und den Umfang der Wickelrolle gebracht. Wenn man durch diese Bewegung dafür sorgt, daß die Haltearme gespannt werden, dann wird das Sprengmittel nach dem Durchtrennen der Materialbahn automatisch in Richtung der Spannung zurückgezogen. Man kann das Sprengmittel dann gleichzeitig dazu verwenden, den Anfang der durchtrennten Materialbahn vom Umfang der Wickelrolle abzuheben. Dies hat beispielsweise dann Vorteile, wenn man vor dem Durchtrennen der Materialbahn einen Klebstoff auf die Materialbahn aufträgt. Man muß dann nicht mehr so genau darauf achten, daß die Trennlinie außerhalb des klebriggemachten Bereichs verläuft. Auch wenn hinter dem Sprengmittel, also am Anfang der neuen Materialbahn etwas Klebstoff verbleibt, wird die Materialbahn mit hoher Zuverlässigkeit vom Umfang der Wickelrolle abgehoben, wenn das Sprengmittel zurückgezogen wird. The explosive is preferably arranged on holding arms, which can be tensioned by rotating the winding roll are. The explosive is used in the course of a rotary movement the winding roll between the top layer of the material web and brought the circumference of the winding roll. If through this movement ensures that the holding arms are tensioned then the explosive after the Cut the material web automatically in the direction withdrawn from the tension. You can use the explosives then simultaneously use the beginning of the severed Lift the material web from the circumference of the winding roll. This has advantages if, for example an adhesive before cutting the material web applies to the material web. You no longer have to so be careful that the dividing line is outside of the tackified area. Even if behind the explosive, i.e. at the beginning of the new material web some glue remains, the material web with high reliability from the scope of the The winding roll is lifted when the explosive is withdrawn becomes.

Hierbei ist bevorzugt, daß die Haltearme um die Achse der Walze verschwenkbar sind. Damit wird einerseits sichergestellt, daß das Sprengmittel beim Fördern der Materialbahn über die Walze synchron mit der Materialbahn eingezogen werden kann. Es entsteht also keine Reibung zwischen der Materialbahn und dem Sprengmittel, die die Materialbahn beschädigen könnte. Beim weiteren Drehen wird sich jedoch die Materialbahn von der Oberfläche der Walze entfernen und damit das Sprengmittel mitnehmen, die Arme also spannen. Wenn dann das Durchtrennen durch das Expandieren des Sprengmittels erfolgt, dann wird das Sprengmittel wieder zurück an die Walze gezogen und bewegt den Anfang der Materialbahn dorthin.It is preferred that the holding arms about the axis the roller can be pivoted. On the one hand, this ensures that the explosive when conveying the web of material over the roller synchronously with the material web can be moved. So there is no friction between the web of material and the explosive that the Material web could damage. When turning further however, the web of material will come off the surface remove the roller and take the disintegrant with you, so stretch your arms. Then when cutting by expanding the explosive, then the explosive is pulled back onto the roller and moves the beginning of the web of material there.

Hierbei ist besonders bevorzugt, daß das Sprengmittel nach dem Durchtrennen die Materialbahn auf der Walze festhält. Das Sprengmittel wird also nicht nur dazu verwendet, die Materialbahn zu durchtrennen und von der Oberfläche der Wickelrolle abzuheben, es dient auch dazu, den Anfang der Materialbahn auf der Walze festzuhalten. Man kann die Wickelrolle von der Walze entfernen, beispielsweise mit Hilfe einer Ausstoßeinrichtung, und dann einen neuen Wickelkern zur Anlage an den Anfang der Materialbahn bringen. Danach kann man das Sprengmittel wieder von der Materialbahn lösen.It is particularly preferred that the disintegrant after cutting the material web on the roller holds on. So the explosive doesn't just become that used to cut the web of material and from the Lifting surface of the winding roll, it also serves to to hold the beginning of the material web on the roller. You can remove the winding roll from the roller, for example with the help of an ejection device, and then a new winding core to plant at the beginning bring the material web. After that you can do that Detach the disintegrant from the material web.

Vorzugsweise bildet die Walze eine Tragwalze eines Doppeltragwalzenwicklers mit einem Wickelbett und das Sprengmittel ist mit einer Steuereinrichtung verbunden, die die Expansion im Wickelbett auslöst. Wenn die Wikkelrolle im Wickelbett liegt, dann hat sie zwei Abstützungen, in denen die oberste Lage der Materialbahn durch das Eigengewicht der Wickelrolle auf den beiden Tragwalzen festgelegt ist. Wenn man nun dafür sorgt, daß die Expansion des Sprengmittels im Wickelbett erfolgt, dann besteht praktisch keine Möglichkeit, daß die Materialbahn von einer der beiden Seiten nachgefördert wird, weil sie zwischen der Wickelrolle und den beiden Tragwalzen eingeklemmt ist. Man erreicht mit einer hohen Zuverlässigkeit die Durchtrennung der Materialbahn genau dort, wo man sie haben möchte.The roller preferably forms a support roller of a double support roller winder with a changing bed and that Explosive device is connected to a control device, which triggers the expansion in the changing bed. If the winding role lies in the changing bed, then it has two supports, in which the top layer of the web of material due to the weight of the winding roll on the two Carrier rollers is set. Now if you make sure that the disintegrant is expanded in the changing bed, then there is practically no possibility that the material web is fed from one of the two sides because it is between the winding roller and the is clamped in both carrier rollers. You can reach with one high reliability the severing of the material web exactly where you want them.

Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung näher beschrieben. Hierin zeigen:

Fig. 1
eine schematische Ansicht einer Wickelvorrichtung vor und
Fig. 2
eine schematische Ansicht der Wickelvorrichtung beim Durchtrennen einer Materialbahn.
The invention is described below with reference to a preferred embodiment in connection with the drawing. Show here:
Fig. 1
a schematic view of a winding device before and
Fig. 2
is a schematic view of the winding device when cutting a web of material.

Fig. 1 zeigt eine Wickelvorrichtung 1 zum Aufwickeln einer Materialbahn 2 zu einer Wickelrolle 3. Die Wikkelrolle 3 ruht hierbei in einem Wickelbett 4, das durch eine erste Tragwalze 5 und eine zweite Tragwalze 6 gebildet ist. Die Materialbahn läuft von oben über die erste Tragwalze 5 in das Wickelbett 4 hinein. Aus Gründen der Übersicht ist die Wickelrolle 3 mit einem kleinen Abstand zu den beiden Tragwalzen 5, 6 dargestellt. In Wirklichkeit liegt die Wickelrolle 3 natürlich auf den beiden Tragwalzen 5, 6 auf und klemmt die oberste Lage der Materialbahn 2 auf ihrem Umfang 3 fest.Fig. 1 shows a winding device 1 for winding a material web 2 to a winding roll 3. The winding roll 3 rests in a changing bed 4, the by a first support roller 5 and a second support roller 6 is formed. The material web overflows from above the first support roller 5 into the winding bed 4. Out For the sake of clarity, the winding roll 3 is with a small distance to the two support rollers 5, 6 shown. In reality, the winding roll 3 is of course on the two support rollers 5, 6 and clamps the top layer of the material web 2 on its circumference 3 firmly.

Zum Durchtrennen der Materialbahn ist eine Trenneinrichtung 7 vorgesehen, die einen Schlauch 8 aufweist, der über eine Feder 9 an einem Paar von Hebeln 10 angeordnet ist, wobei die Hebel 10 (nur einer ist dargestellt, der andere befindet sich am anderen axialen Ende der Tragwalze 5) um eine Achse 11 verschwenkbar sind. Diese Achse 11 kann, muß aber nicht zwingend, mit der Achse der ersten Tragwalze 5 übereinstimmen.A separating device is used to cut through the material web 7 provided which has a hose 8, arranged via a spring 9 on a pair of levers 10 the lever 10 (only one is shown, the other is at the other axial end the support roller 5) pivotable about an axis 11 are. This axis 11 can, but does not have to, with the axis of the first support roller 5 coincide.

Zum Durchtrennen der Materialbahn 2 wird der Schlauch mit nicht näher dargestellten Mitteln auf die Materialbahn 2 abgesenkt und durchläuft mit ihr den Nip 12 zwischen Wickelrolle und erster Tragwalze 5. Damit wird der Schlauch 8 zwischen der obersten Materialbahnlage und der darunter befindlichen Umfangsfläche der Wickelrolle 3 eingeklemmt. Wenn der Schlauch 8 dann ins Wikkelbett 4 gelangt, werden die Federn 9 gespannt, weil sich der Schlauch 8 vom Umfang der ersten Tragwalze 5 entfernt.The hose is used to cut the material web 2 with means not shown on the material web 2 lowered and passes through it with the nip 12 between Winding roll and first support roller 5. This will the hose 8 between the uppermost layer of material and the underlying peripheral surface of the winding roll 3 pinched. If the hose 8 then into the winding bed 4 arrives, the springs 9 are tensioned because the hose 8 extends from the circumference of the first support roller 5 away.

Der Schlauch 8 wird dann sehr schnell mit Luft gefüllt, so daß er sich schlagartig ausdehnt. Die Materialbahn 2 wird hierbei in Laufrichtung vor und hinter dem Schlauch 8 zwischen den beiden Tragwalzen 5, 6 und der Wickelrolle 3 eingeklemmt. Die Materialbahn 2 liegt also vor dem Aufblasen des Schlauchs 8 fest am Umfang der Wickelrolle 3 an. Das Aufblasen des Schlauches 8 bedeutet eine Expansion. Da hierfür im Grunde kein Raum zur Verfügung steht und keine Materialbahn 2 nachgefördert werden kann, platzt die Umgebung des Schlauchs 8 an ihrer schwächsten Stelle. Dies ist die Materialbahn 2. Durch die Expansion des Schlauches wird die Materialbahn sozusagen gesprengt. Dabei entsteht eine Rißlinie, die im wesentlichen parallel zur Längserstreckung des Schlauches, also im wesentlichen parallel zur Rotationsachse der Wickelrolle 3 verläuft. Auch wenn es sich hierbei nicht um eine glatte Kante handelt, wie sie beispielsweise bei einem Schnitt entstehen würde, reicht die Qualität der aufgesprengten Kante doch aus. The hose 8 is then filled with air very quickly, so that it expands suddenly. The material web 2 is in the running direction in front of and behind the Hose 8 between the two support rollers 5, 6 and Winding roll 3 jammed. The material web 2 is therefore before inflating the tube 8 firmly on the circumference of the Winding roll 3 on. Inflating the tube 8 means an expansion. Since there is basically no room for this Is available and no material web 2 is refilled can be, the environment of the hose 8 bursts at her weakest point. This is the material web 2. Due to the expansion of the hose, the material web becomes so to speak blown up. This creates a tear line, which essentially parallel to the longitudinal extension of the Hose, so essentially parallel to the axis of rotation the winding roll 3 runs. Even if it is this is not a smooth edge as it is for example with a cut, the quality of the blasted edge is sufficient.

Nachdem der Schlauch 8 durch seine Expansion die Materialbahn 2 durchtrennt hat, wird er durch die Federn 9 wieder auf die erste Tragwalze 5 zugezogen. Hierbei nimmt er den Anfang 13 der Materialbahn mit und legt ihn gegebenenfalls sogar auf der Oberfläche der Tragwalze 5 fest. Man kann dann in nicht näher dargestellter, aber an sich bekannter Weise eine neue Wickelhülse oder eine neuen Rollenkern einlegen und das Wickeln einer neuen Wickelrolle 3 beginnen.After the hose 8 through its expansion the web of material 2 has cut, it is by the springs 9 pulled back onto the first support roller 5. Here he takes the beginning 13 of the material web and places it possibly even on the surface of the support roller 5 firm. You can then but in a manner known per se a new winding tube or insert a new roll core and winding one start new winding roll 3.

Claims (12)

Verfahren zum Durchtrennen einer Materialbahn am Ende eines Aufwickelns der Materialbahn zu einer Wickelrolle, dadurch gekennzeichnet, daß man ein Sprengmittel zwischen der Materialbahn und der Wikkelrolle einwickelt und das Sprengmittel expandiert.Method for severing a web of material on End of winding the material web into one Winding roll, characterized in that one Disintegrant between the material web and the winding roll wrapped up and the explosive expanded. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man das Sprengmittel durch einen Nip zwischen der Wickelrolle und einer Walze hindurchführt, an der die Wickelrolle unter Zwischenlage der Materialbahn anliegt, und das Sprengmittel hinter dem Nip expandiert.A method according to claim 1, characterized in that the explosive through a nip between the winding roller and a roller passes through the winding roll with the interposition of the material web is present, and the explosive behind the Nip expands. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß man ein wiederverwendbares Sprengmittel verwendet.A method according to claim 1 or 2, characterized in that that you have a reusable explosive used. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man als Sprengmittel einen sich quer zur Materialbahn erstreckenden Schlauch verwendet, der aufgeblasen wird. Method according to one of claims 1 to 3, characterized characterized that you as a disintegrant yourself used hose extending transversely to the material web, which is inflated. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß das Aufblasen schlagartig erfolgt.A method according to claim 4, characterized in that the inflation takes place suddenly. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Sprengmittel nach dem Durchtrennen der Materialbahn von der Wickelrolle weg bewegt wird.Method according to one of claims 1 to 5, characterized characterized in that the explosive after the Cut the web of material from the winding roll is moved away. Wickelvorrichtung zum Aufwickeln einer Materialbahn zu einer Wickelrolle mit mindestens einer Walze, an der die Wickelrolle unter Zwischenlage der Materialbahn anliegt, und einer Trenneinrichtung, dadurch gekennzeichnet, daß die Trenneinrichtung (7) ein Sprengmittel (8) aufweist, daß zwischen Materialbahn (2) und Wickelrolle (3) einwickelbar und dort expandierbar ist.Winding device for winding a material web to a winding roll with at least one roller the winding roll with the interposition of the material web is present, and a separator, thereby characterized in that the separating device (7) an explosive means (8) that between the material web (2) and winding roll (3) can be wrapped and is expandable there. Vorrichtung nach Anspruch , dadurch gekennzeichnet, daß das Sprengmittel als Schlauch (8) ausgebildet ist, der mit Druckluft befüllbar ist.Device according to claim, characterized in that the explosive is designed as a hose (8) is that can be filled with compressed air. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß das Sprengmittel an Haltearmen (10) angeordnet ist, die durch eine Drehung der Wickelrolle (3) spannbar sind.Device according to claim 7 or 8, characterized in that that the explosive on the holding arms (10) is arranged by a rotation of the winding roller (3) are exciting. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Haltearme (10) um die Achse (11) der Walze (5) verschwenkbar sind.Apparatus according to claim 9, characterized in that the holding arms (10) about the axis (11) of the Roller (5) are pivotable. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß das Sprengmittel (8) nach dem Durchtrennen die Materialbahn (2) auf der Walze (5) festhält. Apparatus according to claim 10, characterized in that the disintegrant (8) after cutting holds the material web (2) on the roller (5). Vorrichtung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß die Walze (5) eine Tragwalze eines Doppeltragwalzenwicklers mit einem Wikkelbett (4) bildet und das Sprengmittel (8) mit einer Steuereinrichtung verbunden ist, die die Expansion im Wickelbett (4) auslöst.Device according to one of claims 7 to 11, characterized characterized in that the roller (5) is a support roller of a double carrier roller winder with a winding bed (4) and the explosive (8) with a Control device is connected to the expansion triggers in the changing bed (4).
EP01102626A 2000-02-21 2001-02-07 Method for cutting through a material web and winding device to wind a material web Expired - Lifetime EP1127822B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10007833 2000-02-21
DE10007833A DE10007833B4 (en) 2000-02-21 2000-02-21 Method for severing a material web and winding device for winding a material web

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EP1127822A2 true EP1127822A2 (en) 2001-08-29
EP1127822A3 EP1127822A3 (en) 2004-05-12
EP1127822B1 EP1127822B1 (en) 2006-08-09

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EP01102626A Expired - Lifetime EP1127822B1 (en) 2000-02-21 2001-02-07 Method for cutting through a material web and winding device to wind a material web

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US (1) US6481663B2 (en)
EP (1) EP1127822B1 (en)
AT (1) ATE335694T1 (en)
DE (2) DE10007833B4 (en)

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* Cited by examiner, † Cited by third party
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ITFI20030118A1 (en) * 2003-04-28 2004-10-29 Fabio Perini DEVICE AND METHOD TO CAUSE THE TAPPING OF PAPER TAPES IN REWINDING MACHINES
US20060191152A1 (en) * 2005-02-28 2006-08-31 U-Tai Inc. Adhesive tape pedestal
US20060191151A1 (en) * 2005-02-28 2006-08-31 U-Tai Inc. Adhesive tape pedestal

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US3277761A (en) * 1963-08-27 1966-10-11 Donald F Dreher Web severing apparatus
US3369766A (en) * 1966-05-17 1968-02-20 Scott Paper Co Web winding
DE2330195A1 (en) * 1973-06-14 1975-01-02 Hobema Maschf Hermann Paper, cardboard etc. web cutting - uses pressurised gas jet directed for short periods on web width transversely to its moving direction
US3971290A (en) * 1974-09-13 1976-07-27 The United States Of America As Represented By The Secretary Of The Navy Explosive linear cutter
DE4006412A1 (en) * 1990-03-01 1991-09-05 Helmut Schenke Reel for rolls of sheeting - consists of roll support with rotary roller driven by motor, and separator, with two roll holders
DE4019452A1 (en) * 1990-06-19 1992-01-02 Walter Arndt Knock-off roller for separating moving paper sheets - has several eccentrics in hollow roller producing faster operating speeds
WO1995015901A1 (en) * 1993-12-08 1995-06-15 Beloit Technologies, Inc. Method and apparatus for effecting a set change in a paper winder
DE19926913A1 (en) * 1998-06-11 2000-01-05 Valmet Corp Cutting-through process for paper or card web

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DE2909736C3 (en) * 1979-03-13 1982-02-18 J.M. Voith Gmbh, 7920 Heidenheim Process and double drum roller for rolling up endlessly fed webs
FI78009C (en) * 1987-07-03 1989-06-12 Valmet Paper Machinery Inc Method and apparatus for cutting a pre-perforated paper
AT402399B (en) * 1994-10-17 1997-04-25 Bartelmuss Klaus Ing DEVICE FOR DISCONNECTING A PAPER RAIL
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Publication number Priority date Publication date Assignee Title
US3277761A (en) * 1963-08-27 1966-10-11 Donald F Dreher Web severing apparatus
US3369766A (en) * 1966-05-17 1968-02-20 Scott Paper Co Web winding
DE2330195A1 (en) * 1973-06-14 1975-01-02 Hobema Maschf Hermann Paper, cardboard etc. web cutting - uses pressurised gas jet directed for short periods on web width transversely to its moving direction
US3971290A (en) * 1974-09-13 1976-07-27 The United States Of America As Represented By The Secretary Of The Navy Explosive linear cutter
DE4006412A1 (en) * 1990-03-01 1991-09-05 Helmut Schenke Reel for rolls of sheeting - consists of roll support with rotary roller driven by motor, and separator, with two roll holders
DE4019452A1 (en) * 1990-06-19 1992-01-02 Walter Arndt Knock-off roller for separating moving paper sheets - has several eccentrics in hollow roller producing faster operating speeds
WO1995015901A1 (en) * 1993-12-08 1995-06-15 Beloit Technologies, Inc. Method and apparatus for effecting a set change in a paper winder
DE19926913A1 (en) * 1998-06-11 2000-01-05 Valmet Corp Cutting-through process for paper or card web

Also Published As

Publication number Publication date
DE50110653D1 (en) 2006-09-21
EP1127822A3 (en) 2004-05-12
DE10007833A1 (en) 2001-09-06
EP1127822B1 (en) 2006-08-09
US20010015394A1 (en) 2001-08-23
US6481663B2 (en) 2002-11-19
ATE335694T1 (en) 2006-09-15
DE10007833B4 (en) 2004-09-30

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