EP1319617B1 - Method for transfering a running material web onto a winding core and winding machine - Google Patents

Method for transfering a running material web onto a winding core and winding machine Download PDF

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Publication number
EP1319617B1
EP1319617B1 EP02027756A EP02027756A EP1319617B1 EP 1319617 B1 EP1319617 B1 EP 1319617B1 EP 02027756 A EP02027756 A EP 02027756A EP 02027756 A EP02027756 A EP 02027756A EP 1319617 B1 EP1319617 B1 EP 1319617B1
Authority
EP
European Patent Office
Prior art keywords
material web
winding core
winding
web
core
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 - Lifetime
Application number
EP02027756A
Other languages
German (de)
French (fr)
Other versions
EP1319617A1 (en
Inventor
Zygmunt Madrzak
Matthias Wohlfahrt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2001161073 external-priority patent/DE10161073A1/en
Priority claimed from DE2001163554 external-priority patent/DE10163554A1/en
Priority claimed from DE10201410A external-priority patent/DE10201410A1/en
Priority claimed from DE10206575A external-priority patent/DE10206575A1/en
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1319617A1 publication Critical patent/EP1319617A1/en
Application granted granted Critical
Publication of EP1319617B1 publication Critical patent/EP1319617B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H19/262—Cutting-off the web running to the wound web roll using a thin or filamentary material which is wound on the new 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
    • B65H19/26—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
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • 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
    • B65H2301/41419—Starting winding process
    • B65H2301/41421—Starting winding process involving electrostatic 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
    • 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
    • B65H2301/41896—Several cutting devices, e.g. located at different upstream/downstream positions of the web path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51535—Details of cutting means adhesive tape or tab
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails

Definitions

  • the invention relates to a method for transferring a moving material web, in particular a paper or board web, onto a winding core, wherein at least one agent is applied to the material web in at least one area, wherein the means is connected after reaching a nip formed by a winding roller and the winding core at least temporarily with at least one means directly or indirectly with the winding core and wherein at the latest at the expiration point of the material web of the winding core, a separation of the material web caused by the means and / or made possible, whereby a new, to the center and the winding core, bound web start is formed.
  • Such methods for transferring a material web are used, for example, in the area of a retractor of a machine for paper or board making, a coater or an equivalent machine to the web without interrupting the manufacturing process, that is, without switching off the paper or board machine, successively to several empty Winding cores, which are also referred to as empty cores, or sporadically to the web, that is, after a demolition of the paper or board web or after starting the paper or board machine to wind on a preferably empty core.
  • German Offenlegungsschrift DE 42 08 746 A1 discloses a method for changing bobbins, in which a material web fed continuously to a winding roller is transferred to a bobbin which is in contact with the winding roller.
  • a middle part of the material web a so-called transfer strip, cut with two cutting devices at a point which lies above the winding roller in the running direction of the material web.
  • the transfer strip is on the upper side, that is provided on the empty bobbin side facing, by means of a Klebstoffzu fürvorraum with an adhesive medium and adhered to the surface of the empty beater.
  • the transfer operation is completed by the movement of the two cutting devices in the direction of the respective web edge.
  • the adhesive medium has the ability to completely and reliably tear through the transfer strip at the latest when leaving the nip. Unfortunately, this assumption is rarely confirmed in practice.
  • US Pat. No. 5,954,290 A also discloses a device for transferring a moving paper web onto a winding core. It is envisaged that in a peripheral region of the paper web, a high-strength separating belt, the length of which is a multiple of the material web width, so directly into the nip can be introduced that its beginning connects to the winding core. Thereafter, the separating tape winds spirally on the winding core, wherein it tears the entire web at the same time and transferred to the winding core.
  • this method which has been known for decades and is used in particular in the paper industry, has been constantly improved and developed over time, its fundamental disadvantage could not be eliminated until today.
  • US Pat. No. 4,444,362 A discloses a method in which, in principle, no transfer strip is present, since the web start is completely formed by means of the transverse cutting devices already in front of the winding roller.
  • German patent DE 35 15 519 C2 describes a method in which although a transfer strip is formed, however, its connection to the leading web is already completely separated before the nip.
  • the question also arises as to how the web bound to "nothing bound” can reliably be transported to the nip and listed on the winding core.
  • the object of the present invention is to provide a method of the type mentioned above, which allows an optimal transfer of a moving web on a winding core with high process reliability, process efficiency and low investment and process costs and completely avoids the disadvantages of the prior art ,
  • the method should be applied as possible for all known types of retractors and a wide range of material webs alike.
  • the means applied to the material web in at least one region has at least one release contour with means for punching, cutting, perforating, embossing or weakening the material web at least in the area covered by the material web which at the latest at the expiration point of the material web of the winding core, the web is so weakened or even severed, so that a new web start is formed preferably defined.
  • the known disadvantages of the prior art are completely avoided.
  • the defined and secure formation of a new, bound web start ensures an absolutely clean winding start, which represents one of the most important prerequisites for an optimal winding structure and a small amount of rejects.
  • the method with only a few process steps achieves the highest reproducibility and associated reliability when transferring running material webs at extremely low investment and process costs.
  • a means is used, which is provided with at least one means, with which at the latest when reaching the of the winding roller and the nip formed by the winding core is produced by the means an at least temporary, sufficiently strong direct or indirect connection between the means and the winding core.
  • the web start can be formed defined defined defined preferably, the means is provided with means for punching, cutting, perforating, embossing or weakening of the web, which at the latest at the expiration point of the web of the winding core, the web is so weakened or even severed, so that a new web start is formed preferably defined.
  • the width of the web beginning transferred to the winding core is increased by means of a separating device such that the entire material web is transferred to the winding core.
  • the separating device is moved relative to the material web in a plane approximately parallel to the material plane, preferably at least substantially perpendicular to the running direction of the material web, that oblique parting lines are generated.
  • the means according to the invention can be introduced by means of at least one dispensing device in many ways, each type being particularly suitable for specific application requirements and conditions.
  • the agent in an indirect introduction of the agent, it is advantageous if it by means of at least one adhesive surface, by means of electrostatic forces, by means of magnetic forces by means of vacuum loading of the winding roller, by means of at least one hook and loop or by at least one Saugknopfkoppelung for producing a temporary connection with the outer surface of the winding roller or the lateral surface of the winding core is provided.
  • the last device and / or the last element - seen in the running direction of the material web - is formed for separating and / or transferring the material web onto a winding core.
  • the winding machine 1 shows a schematic and perspectively illustrated winding machine 1 according to the prior art.
  • a winding machine is well known, for example, from PCT Publication WO 98/52858 A1 (EP 0 912 435 A1, US Pat. No. 6,129,305 A) or the already mentioned documents EP 0 543 788 A1, DE 35 15 519 C2 or US 4,445,646 A.
  • the winding machine 1 comprises a winding roller 2, also referred to as a pressure drum or a carrier drum.
  • the material web 3 is led out either from a calender, not shown here, finishing group of a finishing machine or a drying section of a paper or board machine likewise not shown here, then wraps around usually a likewise not shown guide or spreader roll and then runs in the direction LR (arrow) on the outer surface 4 of the winding roller 2, the outer surface 4 of the winding roller 2 wraps around a certain angle ("wrap") to between the winding roller 2 and a winding roll 5 existing nip N1 and is finally wound onto the winding roll 5.
  • a winding core 6 is pre-accelerated by means of a drive device, not shown, and brought into contact with the winding roller 2 to form a nip N2.
  • at least one separation is then usually applied in the moving material web 3 in front of or on the winding roller 2 in at least one web edge by means of at least one known separating device, whereby at least one transfer strip is formed.
  • the formed transfer strip is severed and transferred to the winding core 6.
  • a dispensing device 9 is arranged such that the means 7 can be applied directly or indirectly to the material web 3, wherein in FIG. 1 the dispensing device 9 is arranged on the underside of the material web 3; However, it can of course also be arranged on the upper side of the material web 3. Furthermore, a means 7 is used, which is provided with at least one means 10, with which at the latest on reaching the nip N2 formed by the winding roller 2 and the winding core 6 by the means 10, an at least temporary, sufficiently strong direct or indirect connection between the means 10 and the winding core 6 is produced.
  • an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reib gleich- or welded connection or a magnetic or electrostatic connection to the winding core 6 is prepared.
  • the means 7 are provided with means 11 for punching, cutting, perforating, embossing or weakening the material web 3, with which the material web 3 is so weakened or even severed at the latest at the discharge point Q of the material web 3 of the winding core 6, so that a new Web start 8 is formed preferably defined.
  • the temporary connection by means of at least one adhesive surface, by means of electrostatic forces, by means of magnetic forces, by means of vacuum loading of the winding roller, by means of Velcro or by means of at least one Saugknopfkoppelung be prepared.
  • FIG. 2 shows the winding machine 1 according to FIG. 1 at a later transfer stage of the moving material web 3 onto a winding core 6.
  • the width B of the web start 8 transferred to the winding core 6 is determined by means of at least one separating device 12 is increased, that the entire material web 3 is transferred to the winding core 6.
  • the separating device 12 is designed according to the known prior art and preferably has two cutting elements 12.1, 12.2 with a beam of high energy density, in particular a water jet or laser beam cutting element on. The movement of the two cutting elements is indicated by means of two movement arrows.
  • the separator 12 is not intended to be limited to the illustrated embodiment, but rather it can assume all sorts of design variants.
  • the separator 12 is arranged in the direction of LR (arrow) of the material web 3 in front of the winding roller 2 in the region of a free running path; However, it can also be arranged in the region of the winding roller or in the running direction of the material web in a region in which the material web contacts at least one roller arranged upstream of the winding roller.
  • the separating device 12 may, as shown on the underside in FIG. 2, also be arranged on the upper side of the material web 3.
  • FIG. 3 shows a schematic and perspective illustration of a possible embodiment of the device 7 according to the invention.
  • the means 7 is preferably formed as a molded piece of a plastic, a textile material, a tear-resistant fibrous material, in particular paper, or of at least one material combination and has thickness D M in the range of 0.05 mm to 0.5 mm, preferably in Range from 0.25 mm to 0.1 mm, on.
  • the means 7 is characterized by a width B M of ⁇ 1000 mm, preferably in the range of 100 mm to 500 mm, and a length L M of ⁇ 1500 mm, preferably of ⁇ 1000 mm.
  • the means 7 has at least one separating contour 13.
  • This separating contour 13 is preferably formed neither in the running direction LR (arrow) nor transversely to the running direction LR (arrow) of the material web 3.
  • the means 7 is also preferably formed as a composite object 14 and water-soluble. An executed as composite object 14 means 7 is disclosed for example in the not previously published German patent application DE 102 06 576 A1 of the applicant.
  • the means 7 is provided with at least one means 10, with which at the latest on reaching the nip formed by the winding roller 2 and the winding core 6 by the means 10, an at least temporary, sufficiently strong direct or indirect connection between the means 10 and the winding core is produced.
  • this means 10 depending on the application and application position of the agent 7, an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reib gleich- or welded connection or a magnetic or electrostatic connection to the winding core produced.
  • means 7 is preferably provided with means 11 for punching, cutting, perforating, embossing or weakening the material web 3 with which the material web is so weakened or even severed at the latest at the discharge point of the material web from the winding core, so that a new web start preferably defined formed becomes.
  • the means 10 for example, a double-sided adhesive layer, for example, made of a Tesa power strip or a hot-melts be, in a bottom-side introduction of the means 7, the means 10 may be a magnet and a magnetic connection enter the winding core.
  • hot melts which have neutral adhesive properties at ambient temperature and become capable of bonding only after reaching a certain temperature, are very interesting not only with regard to the automated handling and feeding of the means to the dispenser.
  • a hot-melt laminated means similar to the single-sheet feeder of a commercial printer, easily and reliably fed from a supply cassette of the actual dispenser and the desired adhesive properties are activated by heat at a later date.
  • a connection between the means and the winding core that is only temporary for the duration of one initial rotation can also be established. Comparable benefits can be achieved through the use of encapsulated adhesives that are activated only by applying a certain pressure.
  • connection can also be designed as a form-locking connection, in particular a Velcro connection, as a welded connection, in particular a thermal welding connection, or as a magnetic connection, so that the means at least temporarily in the uncovered area with the hub is connected and fulfilled its tasks.
  • FIG. 4 shows an embodiment of a known winding machine 1 shown in FIG. 1 in a schematic side view. 4 shows the possibilities according to the invention of the means 7 on the material web 3 by means of at least one delivery device 9 in a direct or indirect way.
  • the dispenser 12 has, for example, the form and function of a paper magazine of a plotter or a printer with multi or single sheet delivery.
  • the merely indicated dispensing device 9 is arranged such that the means 7 can be introduced substantially directly between the material web 3 and the winding roller 2.
  • the dispensing device 9 can be arranged such that the means 7 is initially applied to the underside of the material web 3 and then-by means of the material web 3 between the material web 3 and the winding roller 2 can be introduced.
  • This variant offers a good possibility for introducing the agent 7, in particular in the case of limited space.
  • the delivery device 9 can also be arranged so that the means 7 can initially be applied to the lateral surface 4 of the winding roller 2 with temporary connection and then between the two by means of the winding roller 2 Material web 3 and the winding roller 2 can be introduced.
  • the temporary connection can, for example, in the form of an adhesive connection a la "Post it", or in a vacuumed winding roller, the was known from German Patent Application DE 198 22 052 A1, be carried out by means of vacuum. It is also possible to provide a suitable dispensing device in the extension of the winding roller 2, as is usually the case with the known sheaves. Each of these variants may be advantageous depending on the guidance of the material web 3, their properties and the characteristics of the winding machine. In a further embodiment of the invention, it is also possible to attach the dispensing device 9.1 in an area above the material web 3 and to introduce the means 7.1, as already stated, directly or indirectly between the material web 3 and the winding core 6.
  • the separating device 12 can be arranged on the upper side or underside of the material web 3 in front of the nip N2 and have at least one cutting element, preferably a cutting element with a jet of high energy density, in particular a water jet or laser beam cutting element.
  • a quite large number of possible combinations in the arrangement of the dispenser 8 and the separator 12 with the winding machine. 1 In principle, provision is made for the last device and / or the last element-seen in the direction of travel LR (arrow) of the material web 3-to be formed by the means 7 for separating and / or transferring the material web 3 onto a winding core 6.
  • a method of the type mentioned above is provided by the invention, which allows optimal transfer of a moving web on a winding core with high process reliability, process efficiency and low investment and operating costs and completely avoids the disadvantages of the prior art.
  • the method can be practically applied to all known types of retractors and for a wide range of webs alike.

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  • Replacement Of Web Rolls (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The method involves feeding an initial separated piece (11) between the at least one transfer strip (10) and the winding roller (2) directly or indirectly by means of a dispenser device so that one part of the separated piece is not covered by the transfer strip (10) or by the material web (3). After reaching the nip formed by the winding roller and new core the separated piece is connected at least temporarily in the uncovered area to the new core (6). Where the material web runs off from the new core the transfer strip is separated by the initial separated piece so that a new web start is formed which is bonded to both the initial separated piece and the new core. Independent claim describes winding machine with dispenser for introducing an initial separated piece which is disposed so that the separated piece can be introduced directly between the transfer strip and winding roller.

Description

Die Erfindung betrifft ein Verfahren zum Überführen einer laufenden Materialbahn, insbesondere einer Papier- oder Kartonbahn, auf einen Wickelkern,
wobei mindestens ein Mittel in mindestens einem Bereich auf die Ma terialbahn aufgebracht wird,
wobei das Mittel nach Erreichen eines von einer Wickelwalze und dem Wickelkern gebildeten Nips zumindest vorübergehend mit mindestens einem Mittel direkt oder indirekt mit dem Wickelkern verbunden wird und
wobei spätestens am Ablaufpunkt der Materialbahn von dem Wickelkern eine Trennung der Materialbahn durch das Mittel bewirkt und/oder ermöglicht wird, wodurch ein neuer, an das Mittel und den Wickelkern, gebundener Bahnanfang gebildet wird.The invention relates to a method for transferring a moving material web, in particular a paper or board web, onto a winding core,
wherein at least one agent is applied to the material web in at least one area,
wherein the means is connected after reaching a nip formed by a winding roller and the winding core at least temporarily with at least one means directly or indirectly with the winding core and
wherein at the latest at the expiration point of the material web of the winding core, a separation of the material web caused by the means and / or made possible, whereby a new, to the center and the winding core, bound web start is formed.

Derartige Verfahren zur Überführung einer Materialbahn werden beispielsweise im Bereich einer Aufrollvorrichtung einer Maschine zur Papier- oder Kartonherstellung, einer Streichmaschine oder einer äquivalenten Maschine angewendet, um die Materialbahn ohne Unterbrechung des Herstellungsprozesses, das heißt ohne Abschalten der Papier- oder Kartonmaschine, nacheinander auf mehrere leere Wickelkerne, die auch als Leertamboure bezeichnet werden, oder um die Materialbahn sporadisch, das heißt nach einem Abriss der Papier- oder Kartonbahn oder nach dem Anfahren der Papier- oder Kartonmaschine, auf einen vorzugsweise leeren Wickelkern aufzuwickeln.Such methods for transferring a material web are used, for example, in the area of a retractor of a machine for paper or board making, a coater or an equivalent machine to the web without interrupting the manufacturing process, that is, without switching off the paper or board machine, successively to several empty Winding cores, which are also referred to as empty cores, or sporadically to the web, that is, after a demolition of the paper or board web or after starting the paper or board machine to wind on a preferably empty core.

Dabei muss dafür gesorgt werden, dass der durch das Trennen der Materialbahn entstehende Bahnanfang dem Wickelkern zugeführt wird, um auf diesem eine Wickelrolle zu bilden.In this case, care must be taken that the web beginning resulting from the separation of the material web is fed to the winding core in order to form a winding roll thereon.

Aus der deutschen Offenlegungsschrift DE 42 08 746 A1 ist ein Verfahren zum Wechsel von Spulen bekannt, bei welchem eine kontinuierlich zu einer Wickelwalze zugeführte Materialbahn auf eine Spule, die mit der Wickelwalze im Kontakt ist, überführt wird.German Offenlegungsschrift DE 42 08 746 A1 discloses a method for changing bobbins, in which a material web fed continuously to a winding roller is transferred to a bobbin which is in contact with the winding roller.

Dabei wird ein Mittelteil der Materialbahn, ein sogenannter Überführstreifen, mit zwei Schneidvorrichtungen an einer Stelle geschnitten, welche oberhalb der Wickelwalze in Laufrichtung der Materialbahn liegt. Der Überführstreifen wird oberseitig, das heißt auf der dem Leertambour zugewandten Seite, mittels einer Klebstoffzuführvorrichtung mit einem Klebemedium versehen und auf der Oberfläche des Leertambours aufgeklebt. Der Überführvorgang wird vollendet durch die Bewegung der beiden Schneideinrichtungen in Richtung des jeweiligen Bahnrands.
Bei diesem Verfahren wird also vorausgesetzt, dass das Klebemedium die Fähigkeit aufweist, den Überführstreifen spätestens beim Verlassen des Nips vollständig und zuverlässig durchzureißen.
Leider findet diese Annahme in der Praxis nur in den seltensten Fällen eine Bestätigung. Dies haben auch die Erfinder der genannten Schrift erkannt und für das Trennen des Überführstreifens (Schneiden der Materialbahn zwischen den Schneidlinien) eine separate Streifentrenneinrichtung vorgeschlagen. Somit wird in dieser Ausführungsform das bereits aus der US-Patentschrift US 4,445,646 A bekannte Verfahren im vollen Umfang benutzt, das um die Zuführung von Klebemedium auf die Oberseite des Überführstreifens erweitert wurde.
Nachteilhaft an diesem Verfahren sind der konstruktive Aufwand und die überaus große Anzahl an Bauteilen und -gruppen. Auch die zeitliche Synchronisation und Reproduzierbarkeit der einzelnen Verfahrensschritte stellen einen Unsicherheitsfaktor bei der Überführung von Papierbahnen dar. Das Verfahren ist darüber hinaus zum Überführen von Papierbahnen mit hoher Reißfestigkeit, wie beispielsweise Kunststoffbahnen und Karton, absolut nicht geeignet.In this case, a middle part of the material web, a so-called transfer strip, cut with two cutting devices at a point which lies above the winding roller in the running direction of the material web. The transfer strip is on the upper side, that is provided on the empty bobbin side facing, by means of a Klebstoffzuführvorrichtung with an adhesive medium and adhered to the surface of the empty beater. The transfer operation is completed by the movement of the two cutting devices in the direction of the respective web edge.
In this method, it is therefore assumed that the adhesive medium has the ability to completely and reliably tear through the transfer strip at the latest when leaving the nip.
Unfortunately, this assumption is rarely confirmed in practice. This has also recognized the inventors of the document mentioned and proposed for the separation of the transfer strip (cutting the web between the cutting lines) a separate strip separating device. Thus, in this embodiment, the method already known from US Pat. No. 4,445,646 A is used in its entirety, which has been extended by the supply of adhesive medium to the top of the transfer strip.
A disadvantage of this method is the design effort and the extremely large number of components and groups. The temporal synchronization and reproducibility of the individual process steps represent an uncertainty factor in the transfer of paper webs. The method is also absolutely not suitable for transferring paper webs with high tear resistance, such as plastic sheets and cardboard.

Die Verwendung von Klebstoffen zum gleichzeitigen Trennen und Überführen des Überführstreifens auf den Leertambour steht auch bei dem aus der PCT-Offenlegungsschrift WO 97/48632 A1 bekannten Verfahren im Vordergrund. Neben dem bereits offenbarten doppelseitigen Klebeband oder -etikett wird hier auch die Verwendung von Klebstoffen in Form von Hot-Melt und dergleichen vorgeschlagen.The use of adhesives for simultaneously separating and transferring the transfer strip onto the empty bobbin is also in the foreground in the process known from PCT Publication WO 97/48632 A1. In addition to the already disclosed double-sided adhesive tape or label, the use of adhesives in the form of hot-melt and the like is also proposed here.

Darüber hinaus ist nicht nur das oberseitige Aufbringen der Klebstoffe auf die Materialbahn, sondern auch das Aufbringen der Klebstoffe auf die Mantelfläche des Leertambours vorgesehen. Dies ist eine weitere Möglichkeit der Klebstoffzuführung, die jedoch keinen entscheidenden Einfluss auf die Steigerung der Zuverlässigkeit des Verfahrens hat.
Ein Unterschied gegenüber der eingangs zitierten deutschen Offenlegungsschrift ist hier dagegen in der Anordnung und Auswahl der Schneidvorrichtungen zu finden. Man verzichtet hier auf den Einsatz von mechanischen Kreismessern, die in der Praxis ohnehin viele Nachteile mit sich bringen, und sieht statt dessen den Wasserstrahl als Trennmedium vor, mit dem die Materialbahn sowohl vor wie auch direkt auf der Wickelwalze geschnitten werden kann.
Die Einschränkung auf das Schneiden der Materialbahn mit Wasserstrahl an einer Stelle, an der diese bereits über einen Teil der Wickelwalze geführt und unterstützt wird, ist aus Prozessgründen nicht zwingend notwendig. Da aber eine Wasserstrahl-Trennvorrichtung vor der Wickelwalze bereits aus der bereits genannten deutschen Offenlegungsschrift DE 42 08 746 A1, insbesondere Spalte 5, Zeile 32, bekannt wurde, ist diese Einschränkung dennoch nachvollziehbar. Auch bei diesem Verfahren ist der Hauptnachteil in der Tatsache zu sehen, dass es zum Überführen von Papierbahnen mit hoher Reißfestigkeit absolut nicht geeignet ist.In addition, not only the top-side application of the adhesives on the material web, but also the application of the adhesives is provided on the outer surface of the empty drum. This is another way of adhesive delivery, but it does not have a significant impact on increasing the reliability of the process.
On the other hand, a difference to the German patent application cited above can be found in the arrangement and selection of the cutting devices. It dispenses with the use of mechanical circular knives, which in practice bring many disadvantages, and instead provides the water jet as a separation medium, with which the material web can be cut both before and directly on the winding roller.
The restriction to the cutting of the material web with water jet at a point where it is already guided and supported over a part of the winding roller, is not absolutely necessary for process reasons. However, since a water-jet separation device in front of the winding roller has already been known from the aforementioned German patent application DE 42 08 746 A1, in particular column 5, line 32, this limitation is nevertheless comprehensible. Also in this method, the main drawback is the fact that it is absolutely unsuitable for transferring paper webs with high tear strength.

Ein anderer Gedanke hinsichtlich der Trennung des Überführstreifens wird in der europäischen Patentanmeldung EP 0 543 788 A1 offenbart. Die separate Streifentrenneinrichtung ist zwar nach dem Nip angeordnet, jedoch im Gegensatz zu den beiden genannten Schriften DE 42 08 746 A1 und US 4,445,646 A nicht auf der Oberseite der Materialbahn. Das Durchtrennen des Überführstreifens, beispielsweise mit einem gegen die Materialbahn und Leertambour gerichteten Luftstrahl, kann bei vielen Materialbahnen nun relativ zuverlässig gestaltet werden. Zur Realisierung dieser Anordnung muss jedoch der Kontakt zwischen der Wickelwalze und der vollen Rolle zumindest kurzzeitig aufgehoben werden, was bei einem kontinuierlichen Wickelprozess einen gravierenden Nachteil darstellt. In den meisten Fällen sind hierzu spezielle Wickelverfahren erforderlich, die unter anderem Zentrumsantriebe und ersatznip-bildende Elemente beinhalten. Derartige Verfahren und Vorrichtungen werden zum Beispiel in den beiden europäischen Patentschriften EP 0 483 092 B1 und EP 0 788 991 B1, der PCT-Offenlegungsschrift WO 98/52858 A1 und der deutschen Offenlegungsschrift DE 198 07 897 A1 beschrieben. Diese bedingen jedoch höhere Investitions- und Betriebskosten. Zudem können sie aufgrund ihrer Wirkmechanismen zu Beschädigungen an der Oberfläche der Materialbahn führen.
Ein weiterer Nachteil dieser Verfahren stellt die eher zufällige Überführung des Bahnanfangs auf den Leertambour dar. Es wird zwar das Anblasen mit Luftstrahl offenbart, doch in Wirklichkeit vertraut man dabei auf eine sogenannte Selbstaufführung des Bahnanfangs auf den Wickelkern. In der Praxis ist diese Methode nur bedingt einsetzbar: Materialbahnen mit beispielsweise hohen Flächengewicht beziehungsweise Steifigkeit, wie beispielweise Karton, lassen sich auf diese Art und Weise überhaupt nicht überführen. Außerdem ist durch die fehlende Verbindung zwischen dem Bahnanfang und Leertambour kein sauberer Wickelbeginn gewährleistet.Another idea regarding the separation of the transfer strip is disclosed in European Patent Application EP 0 543 788 A1. Although the separate strip separating device is arranged after the nip, but not in contrast to the two cited documents DE 42 08 746 A1 and US 4,445,646 A not on the upper side of the material web. The severing of the transfer strip, for example, with a directed against the web and empty bobbin air jet can now be made relatively reliable in many webs. To realize this arrangement, however, the contact between the winding roller and the full roll must be at least temporarily canceled, which represents a serious disadvantage in a continuous winding process. In most cases, this special winding methods are required, which include, among other center drives and Ersatznip-forming elements. such Methods and devices are described, for example, in the two European patents EP 0 483 092 B1 and EP 0 788 991 B1, PCT Laid-Open Publication WO 98/52858 A1 and German Laid-Open Patent DE 198 07 897 A1. However, these require higher investment and operating costs. In addition, they can cause damage to the surface of the material web due to their mechanisms of action.
Another disadvantage of this method is the more random transfer of the web start on the empty drum dar. Although the air jet jet is disclosed, but in reality one trusts in a so-called self-performance of the web start on the winding core. In practice, this method is only limited use: webs with, for example, high basis weight or stiffness, such as cardboard, can not be transferred in this way at all. In addition, no clean start of winding is guaranteed by the lack of connection between the web start and empty drum.

Weiterhin offenbart auch das US-Patent US 5,954,290 A eine Vorrichtung zum Überführen einer laufenden Papierbahn auf einen Wickelkern. Dabei ist vorgesehen, dass in einem Randbereich der Papierbahn ein hochfestes Trennband, dessen Länge ein Vielfaches der Materialbahnbreite beträgt, derart direkt in den Nip einbringbar ist, dass sein Anfang sich mit dem Wickelkern verbindet. Danach windet sich das Trennband spiralförmig auf den Wickelkern auf, wobei es die gesamte Materialbahn gleichzeitig durchreißt und auf den Wickelkern überführt.
Obwohl dieses seit Jahrzehnten bekannte und insbesondere in der Papierindustrie gebräuchliche Verfahren im Laufe der Zeit ständig verbessert und weiterentwickelt wurde, konnte sein prinzipieller Nachteil bis heute nicht eliminiert werden. Dieser besteht in der Tatsache, dass das nach dem Tambourwechsel auf der Oberfläche des Wickelkerns verbleibende Trennband, dessen Dicke aus Prozessgründen nicht beliebig klein sein darf, stets Druckstellen in der Materialbahn erzeugt, die zur Entstehung einer beachtlichen Ausschussmenge im Kernbereich der Wicklung führen, wodurch die Effizienz des gesamten Herstellungsprozesses stark beeinträchtigt wird. Ein weiterer systembedingter Nachteil dieses Verfahrens ist in dem Zwang zu sehen, dass das Trennband direkt in den Nip eingebracht werden muss, wodurch die Lage des Nips praktisch nicht veränderbar ist. Darüber hinaus stellt das zum Reißen der Materialbahn verwendete Trennband nicht nur potentiell eine große Verletzungs- und Lebensgefahr für das Bedienungspersonal dar. Auch die Frage nach einer umweltgerechten Entsorgung des als Einweg-Produkts verwendeten Trennbands gewinnt zunehmend an Bedeutung.Furthermore, US Pat. No. 5,954,290 A also discloses a device for transferring a moving paper web onto a winding core. It is envisaged that in a peripheral region of the paper web, a high-strength separating belt, the length of which is a multiple of the material web width, so directly into the nip can be introduced that its beginning connects to the winding core. Thereafter, the separating tape winds spirally on the winding core, wherein it tears the entire web at the same time and transferred to the winding core.
Although this method, which has been known for decades and is used in particular in the paper industry, has been constantly improved and developed over time, its fundamental disadvantage could not be eliminated until today. This consists in the fact that the remaining after the reel change on the surface of the winding core strip, the thickness of which may not be arbitrarily small for process reasons, always creates pressure points in the web, leading to the emergence of a considerable amount of waste in the core region of the winding, causing the Efficiency of the entire manufacturing process is severely impaired. Another system-related disadvantage of this method is seen in the constraint that the separating tape must be introduced directly into the nip, whereby the position of the nip is virtually unchangeable. In addition, the release tape used to rupture the web not only potentially poses a great risk of injury and mortality to the operator. Also, the issue of environmentally sound disposal of the single-use product separation tape is becoming increasingly important.

Aus verschiedenen anderen Publikationen sind noch weitere Verfahren und Vorrichtungen zum Überführen einer laufenden Materialbahn bekannt, die jedoch allesamt mit mehr oder weniger großen Nachteilen behaftet sind.From other publications, other methods and devices for transferring a running material web are known, but all of which are associated with more or less major disadvantages.

So offenbart beispielsweise die US-Patentschrift US 4,444,362 A ein Verfahren, bei dem im Prinzip gar kein Überführstreifen vorhanden ist, da der Bahnanfang mittels der Quertrenneinrichtungen bereits vor der Wickelwalze vollständig ausgebildet wird.For example, US Pat. No. 4,444,362 A discloses a method in which, in principle, no transfer strip is present, since the web start is completely formed by means of the transverse cutting devices already in front of the winding roller.

Durch die Anordnung der Quertrenneinrichtungen nach dem Nip ist im Vergleich dazu ein weitaus zuverlässigeres Verfahren entstanden, das ebenfalls auf die Ausbildung von Überführstreifen verzichtet. Dieses aus der europäischen Patentanmeldung EP 0 997 417 A1 bekannte Verfahren kann jedoch ausschließlich an einer Aufrollvorrichtung eingesetzt werden, die mit Zentrumsantrieb und ersatznipbildenden Elementen ausgestattet ist.By arranging the cross-cutting devices after the nip a much more reliable method has been created in comparison, which also dispenses with the formation of transfer strips. However, this method, which is known from European patent application EP 0 997 417 A1, can be used exclusively on a retracting device which is equipped with center drive and replacement nip-forming elements.

Ferner beschreibt die deutsche Patentschrift DE 35 15 519 C2 ein Verfahren, bei dem zwar ein Überführstreifen ausgebildet wird, seine Verbindung zu der vorauslaufenden Bahn jedoch bereits vor dem Nip vollständig getrennt wird. Gleichermaßen wie bei dem US-Patent US 4,444,362 A stellt sich allerdings auch hier die Frage, wie der "an Nichts gebundene" Bahnanfang zuverlässig bis zum Nip transportiert und auf den Wickelkern aufgeführt werden kann?Furthermore, the German patent DE 35 15 519 C2 describes a method in which although a transfer strip is formed, however, its connection to the leading web is already completely separated before the nip. In the same way as in the US Pat. No. 4,444,362 A, however, the question also arises as to how the web bound to "nothing bound" can reliably be transported to the nip and listed on the winding core.

Als nächstliegender Stand der Technik wird das in der US 5,810,279 offenbarte Verfahren angesehen.As the closest prior art, the method disclosed in US 5,810,279 is considered.

Die Aufgabe der vorliegenden Erfindung besteht also darin, ein Verfahren der eingangs genannten Art zu schaffen, das ein optimales Überführen einer laufenden Materialbahn auf einen Wickelkern bei hoher Prozesssicherheit, Prozesseffizienz und günstigen Investitions- und Verfahrenskosten ermöglicht und die Nachteile des bekannten Stands der Technik gänzlich vermeidet. Darüber hinaus soll das Verfahren möglichst für alle bekannten Arten von Aufrollvorrichtungen und ein breites Spektrum von Materialbahnen gleichermaßen angewendet werden können.The object of the present invention is to provide a method of the type mentioned above, which allows an optimal transfer of a moving web on a winding core with high process reliability, process efficiency and low investment and process costs and completely avoids the disadvantages of the prior art , In addition, the method should be applied as possible for all known types of retractors and a wide range of material webs alike.

Diese Aufgabe wird erfindungsgemäß bei einem Verfahren dadurch gelöst, dass dass das in mindestens einem Bereich auf die materialbahn aufgebrachte Mittel mindestens in dem von der Materialbahn überdeckten Bereich mindestens eine Trennkontur mit Mitteln zum Stanzen, Schneiden, Perforieren, Prägen oder Schwächen der Materialbahn aufweist, mit denen spätestens am Ablaufpunkt der Materialbahn von dem Wickelkern die Materialbahn derart geschwächt oder gar durchtrennt wird, so dass ein neuer Bahnanfang vorzugsweise definiert gebildet wird.This object is achieved according to the invention in a method in that the means applied to the material web in at least one region has at least one release contour with means for punching, cutting, perforating, embossing or weakening the material web at least in the area covered by the material web which at the latest at the expiration point of the material web of the winding core, the web is so weakened or even severed, so that a new web start is formed preferably defined.

Durch das gezielte Aufbringen mindestens eines Mittels in mindestens einem Bereich auf die Materialbahn und die weitestgehend kontrollierte Bildung des Bahnanfangs werden die bekannten Nachteile des Stands der Technik gänzlich vermieden.
Insbesondere wird durch die definierte und sichere Ausbildung eines neuen, gebundenen Bahnanfangs ein absolut sauberer Wickelbeginn gewährleistet, der eine der wichtigsten Voraussetzung für einen optimalen Wickelaufbau und eine geringe Ausschussmenge darstellt. Gleichzeitig wird mit dem nur wenige Verfahrensschritte umfassenden Verfahren die höchste Reproduzierbarkeit und damit verbundene Zuverlässigkeit beim Überführen von laufenden Materialbahnen bei äußerst günstigen Investitions- und Verfahrenskosten erzielt.By the targeted application of at least one agent in at least one area on the material web and the largely controlled formation of the web start the known disadvantages of the prior art are completely avoided.
In particular, the defined and secure formation of a new, bound web start ensures an absolutely clean winding start, which represents one of the most important prerequisites for an optimal winding structure and a small amount of rejects. At the same time, the method with only a few process steps achieves the highest reproducibility and associated reliability when transferring running material webs at extremely low investment and process costs.

In einer besonderen erfindungsgemäßen Ausgestaltung des Verfahrens ist vorgesehen, dass ein Mittel verwendet wird, welches mit mindestens einem Mittel versehen ist, mit welchem spätestens bei Erreichen des von der Wickelwalze und dem Wickelkern gebildeten Nips durch das Mittel eine zumindest vorübergehende, ausreichend feste direkte oder indirekte Verbindung zwischen dem Mittel und dem Wickelkern hergestellt wird. Hierdurch wird wiederum die Prozesssicherheit des Überführens der laufenden Materialbahn auf einen Wickelkern positiv unterstützt.In a particular embodiment of the method according to the invention it is provided that a means is used, which is provided with at least one means, with which at the latest when reaching the of the winding roller and the nip formed by the winding core is produced by the means an at least temporary, sufficiently strong direct or indirect connection between the means and the winding core. As a result, the process reliability of transferring the running material web to a winding core is in turn positively supported.

In vorteilhafter Weise wird mit diesem Mittel eine Klebstoff-, Vulkanisations-, Klettverschluss-, Saugknopf-, Formschluss-, Reibschluss- oder Schweißverbindung oder eine magnetische oder elektrostatische Verbindung mit dem Wickelkern hergestellt.Advantageously, this means an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reibschluss- or welded connection or a magnetic or electrostatic connection with the winding core produced.

Damit der Bahnanfang vorzugsweise definiert gebildet werden kann, wird das Mittel mit Mitteln zum Stanzen, Schneiden, Perforieren, Prägen oder Schwächen der Materialbahn versehen, mit denen spätestens am Ablaufpunkt der Materialbahn von dem Wickelkern die Materialbahn derart geschwächt oder gar durchtrennt wird, so dass ein neuer Bahnanfang vorzugsweise definiert gebildet wird.Thus, the web start can be formed defined defined preferably, the means is provided with means for punching, cutting, perforating, embossing or weakening of the web, which at the latest at the expiration point of the web of the winding core, the web is so weakened or even severed, so that a new web start is formed preferably defined.

In vorteilhafter Weise werden die Breite des auf den Wickelkern überführten Bahnanfangs mittels einer Trenneinrichtung derart vergrößert, dass die gesamte Materialbahn auf den Wickelkern überführt wird. Dabei wird die Trenneinrichtung in einer zur Materialbahn etwa parallelen Ebene relativ zur Materialbahn bewegt, vorzugsweise zumindest im wesentlichen senkrecht zur Laufrichtung der Materialbahn, dass schräge Trennlinien erzeugt werden. Mittels dieser Ausgestaltungen wird eine verkürzte Zeitdauer für das Überführen einer laufenden Materialbahn auf einen Wickelkern erreicht, wodurch die dabei zwangsläufig anfallende Ausschussmenge reduziert wird. Durch die am Wickelanfang gegebene Symmetrie wird auch ein im allgemeinen unerwünschter konischer Wickelaufbau vermieden.In an advantageous manner, the width of the web beginning transferred to the winding core is increased by means of a separating device such that the entire material web is transferred to the winding core. In this case, the separating device is moved relative to the material web in a plane approximately parallel to the material plane, preferably at least substantially perpendicular to the running direction of the material web, that oblique parting lines are generated. By means of these embodiments, a shortened period of time for the transfer of a moving material web is achieved on a winding core, whereby thereby inevitably incurred amount of rejects is reduced. Due to the given at the beginning of winding symmetry and a generally undesirable conical winding structure is avoided.

Das Mittel kann erfindungsgemäß mittels mindestens einer Abgabeeinrichtung auf vielerlei Arten eingebracht werden, wobei sich jede Art für bestimmte Anwendungsanforderungen und -bedingungen besonders eignet.The means according to the invention can be introduced by means of at least one dispensing device in many ways, each type being particularly suitable for specific application requirements and conditions.

Eine Einbringung kann unterseitig der Materialbahn prinzipiell wie folgt erfolgen:

  • im wesentlichen direkt zwischen die Materialbahn und die Wickelwalze;
  • bei einer von der Materialbahn nicht umschlungenen Wickelwalze im wesentlichen direkt in den Nip;
  • indirekt zwischen die Materialbahn und die Wickelwalze;
  • zunächst unterseitig auf die Materialbahn und danach mittels der Materialbahn zwischen die Materialbahn und die Wickelwalze; und
  • zunächst bei vorübergehender Verbindung auf die Mantelfläche der Wickelwalze und danach mittels der Wickelwalze zwischen die Materialbahn und die Wickelwalze.
A contribution can be made on the underside of the material web in principle as follows:
  • essentially directly between the web and the winding roller;
  • in a winding roller not wrapped around by the material web substantially directly into the nip;
  • indirectly between the web and the winding roller;
  • initially on the underside of the web and then by means of the material web between the web and the winding roller; and
  • first with temporary connection to the lateral surface of the winding roller and then by means of the winding roller between the material web and the winding roller.

Hingegen kann eine Einbringung oberseitig der Materialbahn prinzipiell wie folgt erfolgen:

  • im wesentlichen direkt zwischen die Materialbahn und den Wickelkern;
  • bei einem von der Materialbahn nicht umschlungenen Wickelkern im wesentlichen direkt in den Nip;
  • indirekt zwischen die Materialbahn und den Wickelkern;
  • oberseitig auf die Materialbahn und danach mittels der Materialbahn zwischen die Materialbahn und den Wickelkern; und
  • zunächst bei vorübergehender Verbindung auf die Mantelfläche des Wickelkerns und danach mittels des Wickelkerns zwischen die Materialbahn und den Wickelkern.
On the other hand, an introduction on the upper side of the material web can in principle be carried out as follows:
  • essentially directly between the material web and the winding core;
  • in a winding core not wrapped around by the material web substantially directly into the nip;
  • indirectly between the material web and the winding core;
  • on the upper side of the material web and then by means of the material web between the material web and the winding core; and
  • first with temporary connection to the outer surface of the winding core and then by means of the winding core between the material web and the winding core.

Bei einer indirekten Einbringung des Mittels ist es günstig, wenn es mittels mindestens einer Klebefläche, mittels elektrostatischer Kräfte, mittels magnetischer Kräfte, mittels Vakuumbeaufschlagung der Wickelwalze, mittels mindestens einem Klettverschluss oder mittels mindestens einer Saugknopfkoppelung zur Herstellung einer vorübergehenden Verbindung mit der Mantelfläche der Wickelwalze oder der Mantelfläche des Wickelkerns versehen ist.In an indirect introduction of the agent, it is advantageous if it by means of at least one adhesive surface, by means of electrostatic forces, by means of magnetic forces by means of vacuum loading of the winding roller, by means of at least one hook and loop or by at least one Saugknopfkoppelung for producing a temporary connection with the outer surface of the winding roller or the lateral surface of the winding core is provided.

Hinsichtlich der Prozesssicherheit und -optimierung ist es von Vorteil, wenn erfindungsgemäß durch das Mittel die letzte Einrichtung und/oder das letzte Element - in Laufrichtung der Materialbahn gesehen - zum Trennen und/oder zum Überführen der Materialbahn auf einen Wickelkern gebildet wird.With regard to process reliability and optimization, it is advantageous if according to the invention by the means the last device and / or the last element - seen in the running direction of the material web - is formed for separating and / or transferring the material web onto a winding core.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die Zeichnung.Further features and advantages of the invention will become apparent from the dependent claims and the following description of preferred embodiments with reference to the drawings.

Es zeigen

Figur 1:
eine schematisierte und perspektivische Darstellung einer Wickelmaschine mit einem erfindungsgemäßen Mittel samt Abgabeeinrichtung;
Figur 2:
die Wickelmaschine gemäß der Figur 1 zu einem späteren Überführstadium;
Figur 3:
eine schematisierte und perspektivische Darstellung einer möglichen Ausführungsform des erfindungsgemäßen Mittels; und
Figur 4:
eine Ausführungsform einer bekannten Wickelmaschine in schematisierter Seitenansicht.
Show it
FIG. 1:
a schematic and perspective view of a winding machine with a means according to the invention including delivery device;
FIG. 2:
the winding machine according to the figure 1 to a later transfer stage;
FIG. 3:
a schematic and perspective view of a possible embodiment of the agent according to the invention; and
FIG. 4:
an embodiment of a known winding machine in a schematic side view.

Die Figur 1 zeigt eine schematisierte und perspektivisch dargestellte Wickelmaschine 1 gemäß dem Stand der Technik.
Eine derartige Wickelmaschine ist beispielsweise aus der PCT-Offenlegungsschrift WO 98/52858 A1 (≡ EP 0 912 435 A1; US 6,129,305 A) oder den bereits erwähnten Schriften EP 0 543 788 A1, DE 35 15 519 C2 oder US 4,445,646 A hinlänglich bekannt.
Die Wickelmaschine 1 umfasst unter anderem eine auch als Anpresstrommel oder als Tragtrommel bezeichnete Wickelwalze 2. Die Materialbahn 3 wird entweder aus einem hier nicht dargestellten Glättwerk/Kalander, Schlussgruppe einer Veredelungsmaschine oder einer hier ebenfalls nicht dargestellten Trockenpartie einer Papier- oder Kartonmaschine herausgeführt, umschlingt dann meistens eine ebenfalls nicht dargestellte Leit- oder Breitstreckwalze und läuft sodann in Laufrichtung LR (Pfeil) auf der Mantelfläche 4 der Wickelwalze 2 auf, umschlingt die Mantelfläche 4 der Wickelwalze 2 um einen gewissen Winkel ("Umschlingungswinkel") bis zum zwischen der Wickelwalze 2 und einer Wickelrolle 5 vorhandenen Nip N1 und wird schließlich auf die Wickelrolle 5 aufgewickelt. Wenn nunmehr die Wickelrolle 5 einen vorbestimmten Durchmesser DW erreicht hat, wird ein Wickelkern 6 mittels einer nicht dargestellten Antriebseinrichtung vorbeschleunigt und in Kontakt mit der Wickelwalze 2 unter Ausbildung eines Nips N2 gebracht. Gemäß dem bekannten Stand der Technik wird danach üblicherweise in die laufende Materialbahn 3 vor oder auf der Wickelwalze 2 mindestens eine nicht dargestellte Trennung in mindestens einem Bahnrand mittels mindestens einer bekannten Trenneinrichtung angebracht, wodurch mindestens ein Überführstreifen ausgebildet wird. Zum Überführen der gesamten Materialbahn 3 auf den Wickelkern 6 wird der ausgebildete Überführstreifen durchgetrennt und auf den Wickelkern 6 überführt. Vielerlei Varianten eines derartigen Verfahrens zum Überführen einer laufenden Materialbahn auf einen Wickelkern unter Ausbildung mindestens eines Überführstreifens sind unter anderem aus den eingangs genannten Schriften bekannt.
Es ist nun vorgesehen, dass mindestens ein Mittel 7 in mindestens einem Bereich auf die Materialbahn 3 aufgebracht wird, dass das Mittel 7 nach Erreichen eines von einer Wickelwalze 2 und dem Wickelkern 6 gebildeten Nips N2 zumindest vorübergehend mit mindestens einem Mittel 7 direkt oder indirekt mit dem Wickelkern 6 verbunden wird, und dass spätestens am Ablaufpunkt Q der Materialbahn 3 von dem Wickelkern 6 eine Trennung der Materialbahn 3 durch das Mittel 7 bewirkt und/oder ermöglicht wird, wodurch ein neuer, an das Mittel 7 und den Wickelkern 6 gebundener Bahnanfang 8 (Figur 2) gebildet wird.
Hierzu ist eine Abgabeeinrichtung 9 derart angeordnet, dass das Mittel 7 direkt oder indirekt auf die Materialbahn 3 aufbringbar ist, wobei in Figur 1 die Abgabeeinrichtung 9 unterseitig der Materialbahn 3 angeordnet ist; sie kann jedoch selbstverständlich auch oberseitig der Materialbahn 3 angeordnet sein.
Weiterhin wird ein Mittel 7 verwendet, welches mit mindestens einem Mittel 10 versehen ist, mit welchem spätestens bei Erreichen des von der Wickelwalze 2 und dem Wickelkern 6 gebildeten Nips N2 durch das Mittel 10 eine zumindest vorübergehende, ausreichend feste direkte oder indirekte Verbindung zwischen dem Mittel 10 und dem Wickelkern 6 hergestellt wird. Mit diesem Mittel 10 wird, je nach Anwendungsfall und Aufbringungslage des Mittels 7, eine Klebstoff-, Vulkanisations-, Klettverschluss-, Saugknopf-, Formschluss-, Reibschluss- oder Schweißverbindung oder eine magnetische oder elektrostatische Verbindung mit dem Wickelkern 6 hergestellt. Überdies wird das Mittel 7 mit Mitteln 11 zum Stanzen, Schneiden, Perforieren, Prägen oder Schwächen der Materialbahn 3 versehen, mit denen spätestens am Ablaufpunkt Q der Materialbahn 3 von dem Wickelkern 6 die Materialbahn 3 derart geschwächt oder gar durchtrennt wird, so dass ein neuer Bahnanfang 8 vorzugsweise definiert gebildet wird.
Bei einer indirekten Einbringung kann die vorübergehende Verbindung mittels mindestens einer Klebefläche, mittels elektrostatischer Kräfte, mittels magnetischer Kräfte, mittels Vakuumbeaufschlagung der Wickelwalze, mittels Klettverschluss oder mittels mindestens einer Saugknopfkoppelung hergestellt werden.1 shows a schematic and perspectively illustrated winding machine 1 according to the prior art.
Such a winding machine is well known, for example, from PCT Publication WO 98/52858 A1 (EP 0 912 435 A1, US Pat. No. 6,129,305 A) or the already mentioned documents EP 0 543 788 A1, DE 35 15 519 C2 or US 4,445,646 A.
Among other things, the winding machine 1 comprises a winding roller 2, also referred to as a pressure drum or a carrier drum. The material web 3 is led out either from a calender, not shown here, finishing group of a finishing machine or a drying section of a paper or board machine likewise not shown here, then wraps around usually a likewise not shown guide or spreader roll and then runs in the direction LR (arrow) on the outer surface 4 of the winding roller 2, the outer surface 4 of the winding roller 2 wraps around a certain angle ("wrap") to between the winding roller 2 and a winding roll 5 existing nip N1 and is finally wound onto the winding roll 5. Now, when the winding roller 5 has reached a predetermined diameter D W , a winding core 6 is pre-accelerated by means of a drive device, not shown, and brought into contact with the winding roller 2 to form a nip N2. According to the known state of the art, at least one separation, not shown, is then usually applied in the moving material web 3 in front of or on the winding roller 2 in at least one web edge by means of at least one known separating device, whereby at least one transfer strip is formed. For transferring the entire material web 3 onto the winding core 6, the formed transfer strip is severed and transferred to the winding core 6. Many variants of such a method for transferring a moving material web onto a winding core to form at least one transfer strip are known, inter alia, from the documents cited at the outset.
It is now provided that at least one means 7 is applied in at least one area on the material web 3, that the means 7 after Achieving a nip N2 formed by a winding roller 2 and the winding core 6 is at least temporarily connected directly or indirectly to the winding core 6 with at least one means 7, and that at the latest at the discharge point Q of the material web 3 of the winding core 6, a separation of the material web 3 by the Agent 7 causes and / or made possible, whereby a new, bound to the means 7 and the winding core 6 web start 8 (Figure 2) is formed.
For this purpose, a dispensing device 9 is arranged such that the means 7 can be applied directly or indirectly to the material web 3, wherein in FIG. 1 the dispensing device 9 is arranged on the underside of the material web 3; However, it can of course also be arranged on the upper side of the material web 3.
Furthermore, a means 7 is used, which is provided with at least one means 10, with which at the latest on reaching the nip N2 formed by the winding roller 2 and the winding core 6 by the means 10, an at least temporary, sufficiently strong direct or indirect connection between the means 10 and the winding core 6 is produced. With this agent 10, depending on the application and application position of the agent 7, an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reibschluss- or welded connection or a magnetic or electrostatic connection to the winding core 6 is prepared. Moreover, the means 7 are provided with means 11 for punching, cutting, perforating, embossing or weakening the material web 3, with which the material web 3 is so weakened or even severed at the latest at the discharge point Q of the material web 3 of the winding core 6, so that a new Web start 8 is formed preferably defined.
In an indirect introduction, the temporary connection by means of at least one adhesive surface, by means of electrostatic forces, by means of magnetic forces, by means of vacuum loading of the winding roller, by means of Velcro or by means of at least one Saugknopfkoppelung be prepared.

Die Figur 2 zeigt die Wickelmaschine 1 gemäß der Figur 1 zu einem späteren Überführstadium der laufenden Materialbahn 3 auf einen Wickelkern 6. Erfindungsgemäß ist dabei vorgesehen, dass die Breite B des auf den Wickelkern 6 überführten Bahnanfangs 8 mittels mindestens einer Trenneinrichtung 12 derart vergrößert wird, dass die gesamte Materialbahn 3 auf den Wickelkern 6 überführt wird. Die Trenneinrichtung 12 ist dabei gemäß dem bekannten Stand der Technik ausgeführt und weist vorzugsweise zwei Schneidelemente 12.1, 12.2 mit einem Strahl hoher Energiedichte, insbesondere ein Wasserstrahl- oder Laserstrahl-Schneidelement, auf. Die Bewegung der beiden Schneidelemente ist mittels zweier Bewegungspfeile angedeutet. Die Trenneinrichtung 12 soll jedoch nicht auf die dargestellte Ausführung beschränkt sein, sie kann vielmehr allerlei Ausführungsvarianten annehmen. In Figur 2 ist die Trenneinrichtung 12 in Laufrichtung LR (Pfeil) der Materialbahn 3 vor der Wickelwalze 2 im Bereich eines freien Laufwegs angeordnet ist; sie kann jedoch auch im Bereich der Wickelwalze oder in Laufrichtung der Materialbahn in einem Bereich, in dem die Materialbahn mindestens eine der Wickelwalze vorgelagerten Walzen berührt, angeordnet sein. Die Trenneinrichtung 12 kann, wie in Figur 2 unterseitig dargestellt, auch oberseitig der Materialbahn 3 angeordnet sein.FIG. 2 shows the winding machine 1 according to FIG. 1 at a later transfer stage of the moving material web 3 onto a winding core 6. According to the invention, the width B of the web start 8 transferred to the winding core 6 is determined by means of at least one separating device 12 is increased, that the entire material web 3 is transferred to the winding core 6. The separating device 12 is designed according to the known prior art and preferably has two cutting elements 12.1, 12.2 with a beam of high energy density, in particular a water jet or laser beam cutting element on. The movement of the two cutting elements is indicated by means of two movement arrows. However, the separator 12 is not intended to be limited to the illustrated embodiment, but rather it can assume all sorts of design variants. In Figure 2, the separator 12 is arranged in the direction of LR (arrow) of the material web 3 in front of the winding roller 2 in the region of a free running path; However, it can also be arranged in the region of the winding roller or in the running direction of the material web in a region in which the material web contacts at least one roller arranged upstream of the winding roller. The separating device 12 may, as shown on the underside in FIG. 2, also be arranged on the upper side of the material web 3.

Die Figur 3 zeigt eine schematisierte und perspektivische Darstellung einer möglichen Ausführungsform des erfindungsgemäßen Mittels 7.
Erfindungsgemäß ist das Mittel 7 vorzugsweise als ein Formstück aus einem Kunststoff, einem textilen Werkstoff, einem reißfesten Faserstoff, insbesondere Papier, oder aus mindestens einer Werkstoffkombination ausgebildet und weist Dicke DM im Bereich von 0,05 mm bis 0,5 mm, vorzugsweise im Bereich von 0,25 mm bis 0,1 mm, auf. Weiterhin ist das Mittel 7 durch eine Breite BM von ≤ 1.000 mm, vorzugsweise im Bereich von 100 mm bis 500 mm, und eine Länge LM von ≤ 1.500 mm, vorzugsweise von ≤ 1.000 mm, gekennzeichnet. Überdies weist das Mittel 7 in dem der Laufrichtung LR (Pfeil) zugewandten Bereich mindestens eine Trennkontur 13 auf. Diese Trennkontur 13 ist vorzugsweise weder in Laufrichtung LR (Pfeil) noch quer zur Laufrichtung LR (Pfeil) der Materialbahn 3 ausgebildet. Das Mittel 7 ist überdies vorzugsweise als ein Verbundobjekt 14 ausgebildet und wasserlöslich. Ein als Verbundobjekt 14 ausgeführtes Mittel 7 ist beispielsweise in der nicht vorveröffentlichten deutschen Patentanmeldung DE 102 06 576 A1 des Anmelders offenbart.FIG. 3 shows a schematic and perspective illustration of a possible embodiment of the device 7 according to the invention.
According to the invention, the means 7 is preferably formed as a molded piece of a plastic, a textile material, a tear-resistant fibrous material, in particular paper, or of at least one material combination and has thickness D M in the range of 0.05 mm to 0.5 mm, preferably in Range from 0.25 mm to 0.1 mm, on. Furthermore, the means 7 is characterized by a width B M of ≦ 1000 mm, preferably in the range of 100 mm to 500 mm, and a length L M of ≦ 1500 mm, preferably of ≦ 1000 mm. Moreover, in the region facing the running direction LR (arrow), the means 7 has at least one separating contour 13. This separating contour 13 is preferably formed neither in the running direction LR (arrow) nor transversely to the running direction LR (arrow) of the material web 3. The means 7 is also preferably formed as a composite object 14 and water-soluble. An executed as composite object 14 means 7 is disclosed for example in the not previously published German patent application DE 102 06 576 A1 of the applicant.

Wie bereits oben ausgeführt, ist das Mittel 7 mit mindestens einem Mittel 10 versehen ist, mit welchem spätestens bei Erreichen des von der Wickelwalze 2 und dem Wickelkern 6 gebildeten Nips durch das Mittel 10 eine zumindest vorübergehende, ausreichend feste direkte oder indirekte Verbindung zwischen dem Mittel 10 und dem Wickelkern hergestellt wird. Mit diesem Mittel 10 wird, je nach Anwendungsfall und Aufbringungslage des Mittels 7 eine Klebstoff-, Vulkanisations-, Klettverschluss-, Saugknopf-, Formschluss-, Reibschluss- oder Schweißverbindung oder eine magnetische oder elektrostatische Verbindung mit dem Wickelkern hergestellt. Überdies ist Mittel 7 vorzugsweise mit Mitteln 11 zum Stanzen, Schneiden, Perforieren, Prägen oder Schwächen der Materialbahn 3 versehen, mit denen spätestens am Ablaufpunkt der Materialbahn von dem Wickelkern die Materialbahn derart geschwächt oder gar durchtrennt wird, so dass ein neuer Bahnanfang vorzugsweise definiert gebildet wird.
Bei einer oberseitigen Einbringung des Mittels 7 kann das Mittel 10 beispielsweise eine beidseitige Klebeschicht, hergestellt beispielsweise aus einem Tesa-Powerstrip oder ein Hot-Melts, sein, bei einer unterseitigen Einbringung des Mittels 7 kann das Mittel 10 ein Magnet sein und eine magnetische Verbindung mit dem Wickelkern eingehen. Generell sind Hot-Melts, die bei Umgebungstemperatur neutrale Klebeeigenschaften aufweisen und erst nach Erreichen einer bestimmten Temperatur verbindungsfähig werden, nicht nur in Hinsicht auf die automatisierte Handhabung und Zuführung der Mittel zur Abgabeeinrichtung sehr interessant. So kann beispielsweise ein mit Hot-Melt kaschiertes Mittel, ähnlich der Einzelblattzufuhr eines handelsüblichen Printers, einfach und zuverlässig von einer Vorratskassette der eigentlichen Abgabeeinrichtung zugeführt und die gewünschten Klebeeigenschaften zum späteren Zeitpunkt durch Wärmezufuhr aktiviert werden. Auf diese Weise kann bei einem geeigneten, reaktiven Hot-Melt auch eine nur vorübergehende, mindestens für die Dauer einer Initialumdrehung bestehende Verbindung zwischen dem Mittel und dem Wickelkern hergestellt werden. Vergleichbare Vorteile können durch die Verwendung von gekapselten Klebstoffen erreicht werden, die erst durch Ausübung eines bestimmten Druckes aktiviert werden. Die Aufzählung aller in Frage kommenden Verbindungsarten mit detaillierter Beschreibung der sich daraus ergebenden Vorteile ist für diese Erfindung nicht entscheidend und würde mit Sicherheit den Rahmen dieser Schrift sprengen. Aus diesem Grund soll nur noch allgemein darauf hingewiesen werden, dass diese Verbindung auch als Formschlussverbindung, insbesondere eine Klettverschlussverbindung, als Schweißverbindung, insbesondere eine thermische Schweißverbindung, oder als eine magnetische Verbindung ausgestaltet werden kann, damit das Mittel zumindest vorübergehend in dem nicht überdeckten Bereich mit dem Wickelkern verbunden wird und seine Aufgaben erfüllt.As already stated above, the means 7 is provided with at least one means 10, with which at the latest on reaching the nip formed by the winding roller 2 and the winding core 6 by the means 10, an at least temporary, sufficiently strong direct or indirect connection between the means 10 and the winding core is produced. With this means 10, depending on the application and application position of the agent 7, an adhesive, vulcanization, Velcro, Saugknopf-, form-fitting, Reibschluss- or welded connection or a magnetic or electrostatic connection to the winding core produced. Moreover, means 7 is preferably provided with means 11 for punching, cutting, perforating, embossing or weakening the material web 3 with which the material web is so weakened or even severed at the latest at the discharge point of the material web from the winding core, so that a new web start preferably defined formed becomes.
In a top-side introduction of the means 7, the means 10, for example, a double-sided adhesive layer, for example, made of a Tesa power strip or a hot-melts be, in a bottom-side introduction of the means 7, the means 10 may be a magnet and a magnetic connection enter the winding core. In general, hot melts, which have neutral adhesive properties at ambient temperature and become capable of bonding only after reaching a certain temperature, are very interesting not only with regard to the automated handling and feeding of the means to the dispenser. Thus, for example, a hot-melt laminated means, similar to the single-sheet feeder of a commercial printer, easily and reliably fed from a supply cassette of the actual dispenser and the desired adhesive properties are activated by heat at a later date. In this way, in the case of a suitable, reactive hot-melt, a connection between the means and the winding core that is only temporary for the duration of one initial rotation can also be established. Comparable benefits can be achieved through the use of encapsulated adhesives that are activated only by applying a certain pressure. The enumeration of all possible types of connection with a detailed description of the resulting advantages is for this invention not crucial and would certainly go beyond the scope of this document. For this reason, it should be pointed out only in general terms that this connection can also be designed as a form-locking connection, in particular a Velcro connection, as a welded connection, in particular a thermal welding connection, or as a magnetic connection, so that the means at least temporarily in the uncovered area with the hub is connected and fulfilled its tasks.

Die Figur 4 zeigt eine Ausführungsform einer bekannten, wie beispielsweise in der Figur 1 dargestellten Wickelmaschine 1 in schematisierter Seitenansicht. Dargestellt werden in der Figur 4 die erfindungsgemäßen Möglichkeiten des Mittels 7 auf die Materialbahn 3 mittels mindestens einer Abgabeeinrichtung 9 auf einem direkten oder indirekten Wege. Die Abgabeeinrichtung 12 weist beispielsweise die Form und die Funktion eines Papiermagazins eines Plotters oder eines Druckers mit Multi- oder Einzelblattabgabe auf.
In der bevorzugten Ausführungsform ist vorgesehen, dass die lediglich angedeutete Abgabeeinrichtung 9 derart angeordnet ist, dass das Mittel 7 im wesentlichen direkt zwischen die Materialbahn 3 und die Wickelwalze 2 einbringbar ist. Vorteilhaft bei dieser Anordnung ist neben der einfachen Ausgestaltung der Abgabeeinrichtung 9 und des Mittels 7 auch die Geschwindigkeit, mit der das Mittel 7 einbringbar ist, die um ein Vielfaches geringer als die Materialbahngeschwindigkeit sein kann.
Alternativ dazu kann die Abgabeeinrichtung 9 derart angeordnet werden, dass das Mittel 7 zunächst unterseitig auf die Materialbahn 3 aufbringbar ist und danach-mittels der Materialbahn 3 zwischen die Materialbahn 3 und die Wickelwalze 2 einbringbar ist. Diese Variante bietet insbesondere bei eingeschränkten Platzverhältnissen eine gute Möglichkeit zum Einbringen des Mittels 7. Die Abgabeeinrichtung 9 kann auch so angeordnet werden, dass das Mittel 7 zunächst bei temporärer Verbindung auf die Mantelfläche 4 der Wickelwalze 2 aufbringbar ist und danach mittels der Wickelwalze 2 zwischen die Materialbahn 3 und die Wickelwalze 2 einbringbar ist. Die temporäre Verbindung kann beispielsweise in Form einer Klebeverbindung ä la "Post it", oder bei einer besaugten Wickelwalze, die aus der deutschen Offenlegungsschrift DE 198 22 052 A1 bekannt wurde, mittels Vakuum ausgeführt sein. Außerdem besteht die Möglichkeit, eine geeignete Abgabeeinrichtung in der Verlängerung der Wickelwalze 2 vorzusehen, wie es üblicherweise bei den bekannten Seilscheiben der Fall ist. Jede dieser Varianten kann in Abhängigkeit von der Führung der Materialbahn 3, ihrer Eigenschaften und den Besonderheiten der Wickelmaschine vorteilhaft sein.
In weiterer Ausgestaltung der Erfindung ist es auch möglich, die Abgabeeinrichtung 9.1 in einem Bereich oberhalb der Materialbahn 3 anzubringen und das Mittel 7.1, wie bereits ausgeführt, direkt oder indirekt zwischen die Materialbahn 3 und den Wickelkern 6 einzubringen.
Die Trenneinrichtung 12 kann gemäß dem Stand der Technik oberseitig oder unterseitig der Materialbahn 3 vor dem Nip N2 angeordnet sein und mindestens ein Schneidelement, vorzugsweise ein Schneidelement mit einem Strahl hoher Energiedichte, insbesondere ein Wasserstrahl- oder Laserstrahl-Schneidelement aufweisen.
Nachdem keine eindeutig bevorzugte Anordnung der Trenneinrichtung 9 existiert, ergibt sich, wie aus der Figur 4 deutlich erkennbar, eine durchaus große Anzahl von Kombinationsmöglichkeiten in der Anordnung der Abgabeeinrichtung 8 und der Trenneinrichtung 12 mit der Wickelmaschine 1.
Grundsätzlich ist vorgesehen, dass durch das Mittel 7 die letzte Einrichtung und/oder das letzte Element - in Laufrichtung LR (Pfeil) der Materialbahn 3 gesehen - zum Trennen und/oder zum Überführen der Materialbahn 3 auf einen Wickelkern 6 gebildet wird.FIG. 4 shows an embodiment of a known winding machine 1 shown in FIG. 1 in a schematic side view. 4 shows the possibilities according to the invention of the means 7 on the material web 3 by means of at least one delivery device 9 in a direct or indirect way. The dispenser 12 has, for example, the form and function of a paper magazine of a plotter or a printer with multi or single sheet delivery.
In the preferred embodiment, it is provided that the merely indicated dispensing device 9 is arranged such that the means 7 can be introduced substantially directly between the material web 3 and the winding roller 2. An advantage of this arrangement, in addition to the simple design of the dispenser 9 and the means 7 and the speed at which the means 7 can be introduced, which may be lower than the material web speed by a multiple.
Alternatively, the dispensing device 9 can be arranged such that the means 7 is initially applied to the underside of the material web 3 and then-by means of the material web 3 between the material web 3 and the winding roller 2 can be introduced. This variant offers a good possibility for introducing the agent 7, in particular in the case of limited space. The delivery device 9 can also be arranged so that the means 7 can initially be applied to the lateral surface 4 of the winding roller 2 with temporary connection and then between the two by means of the winding roller 2 Material web 3 and the winding roller 2 can be introduced. The temporary connection can, for example, in the form of an adhesive connection a la "Post it", or in a vacuumed winding roller, the was known from German Patent Application DE 198 22 052 A1, be carried out by means of vacuum. It is also possible to provide a suitable dispensing device in the extension of the winding roller 2, as is usually the case with the known sheaves. Each of these variants may be advantageous depending on the guidance of the material web 3, their properties and the characteristics of the winding machine.
In a further embodiment of the invention, it is also possible to attach the dispensing device 9.1 in an area above the material web 3 and to introduce the means 7.1, as already stated, directly or indirectly between the material web 3 and the winding core 6.
According to the prior art, the separating device 12 can be arranged on the upper side or underside of the material web 3 in front of the nip N2 and have at least one cutting element, preferably a cutting element with a jet of high energy density, in particular a water jet or laser beam cutting element.
After no clearly preferred arrangement of the separating device 9 exists, as can be seen clearly from the figure 4, a quite large number of possible combinations in the arrangement of the dispenser 8 and the separator 12 with the winding machine. 1
In principle, provision is made for the last device and / or the last element-seen in the direction of travel LR (arrow) of the material web 3-to be formed by the means 7 for separating and / or transferring the material web 3 onto a winding core 6.

Zusammenfassend ist festzuhalten, dass durch die Erfindung ein Verfahren der eingangs genannten Art geschaffen wird, die ein optimales Überführen einer laufenden Materialbahn auf einen Wickelkern bei hoher Prozesssicherheit, Prozesseffizienz und günstigen Investitions- und Betriebskosten ermöglicht und die Nachteile des bekannten Stands der Technik gänzlich vermeidet. Darüber hinaus kann das Verfahren praktisch an allen bekannten Arten von Aufrollvorrichtungen und für ein breites Spektrum von Materialbahnen gleichermaßen angewendet werden.In summary, it should be noted that a method of the type mentioned above is provided by the invention, which allows optimal transfer of a moving web on a winding core with high process reliability, process efficiency and low investment and operating costs and completely avoids the disadvantages of the prior art. In addition, the method can be practically applied to all known types of retractors and for a wide range of webs alike.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Wickelmaschinewinder
22
Wickelwalzewinding roller
33
Materialbahnweb
44
Mantelflächelateral surface
55
Wickelrollereel
66
Wickelkernwinding core
7, 7.17, 7.1
Mittelmedium
88th
Bahnanfangweb start
9,9.19,9.1
Abgabeeinrichtungdelivery device
1010
Mittelmedium
1111
Mittelmedium
1212
Trenneinrichtungseparator
12.1, 12.212.1, 12.2
Schneidelementcutting element
1313
Trennkonturseparating contour
1414
Verbundobjektcomposite object
BM B M
Breite (Mittel)Width (middle)
DM D M
Dicke (Mittel)Thickness (Medium)
DW D W
Durchmesser (Wickelrolle)Diameter (winding roll)
LM L M
Länge (Mittel)Length (medium)
LRLR
Laufrichtung (Pfeil)Running direction (arrow)
N1N1
Nip (Wickelwalze-Wickelrolle)Nip (winding roller winding roll)
N2N2
Nip (Wickelwalze-Wickelkern)Nip (winding roller winding core)
QQ
Ablaufpunktthe end point

Claims (16)

  1. Method for transferring a running material web (3), in particular a paper or board web, onto a winding core (6),
    at least one means (7) being applied to the material web (3) in at least one region,
    the means (7), after reaching a nip (N2) formed by a winding roll and the winding core (6), being at least temporarily connected directly or indirectly to the winding core (1) by at least one means (10), and
    at the latest at the point (Q) where the material web (3) runs off the winding core (6), division of the material web (3) being effected and/or made possible by the means (7), as a result of which a new web start (8) bonded to the means (7) and the winding core (6) is formed,
    characterized in that,
    at least in the region covered by the material web (3), the means (7) has at least one dividing contour (23) having means (11) for punching, cutting, perforating, embossing or weakening the material web (3), with which, at the latest at the point (Q) at which the material web (3) runs off the winding core (6), the material web (3) is weakened or even severed, so that a new web start (8) is preferably formed in a defined manner.
  2. Method according to Claim 1, characterized in that use is made of a means (7) which is provided with at least one means (10) with which, at the latest when reaching the nip (N2) formed by the winding roll (2) and the winding core (6), an at least temporary, adequately firm direct or indirect connection between the means (7) and the winding core (6) is produced by the means (7).
  3. Method according to Claim 2, characterized in that an adhesive, vulcanization, hook and loop, suction cup, form-fitting, frictional or welded connection or a magnetic or electrostatic connection with the winding core (6) is produced with these means (10).
  4. Method according to one of the preceding claims, characterized in that the width (B) of the web start (8) transferred onto the winding core (6) is enlarged by means of at least one dividing device (12) in such a way that the entire material web (3) is transferred onto the winding core (6).
  5. Method according to one of the preceding claims, characterized in that the means (7) is introduced substantially directly between the material web (3) and the winding roll (2) by means of at least one discharge device (9).
  6. Method according to Claim 5, characterized in that, in the case of a winding roll (2) around which the material web (3) does not wrap, the means (7) is introduced substantially directly into the nip (N2) by means of at least one discharge device (9).
  7. Method according to one of Claims 1 to 4, characterized in that the means (7) is introduced indirectly between the material web (3) and the winding roll (2) by means of at least one discharge device (9).
  8. Method according to Claim 7, characterized in that the means (7) is initially applied to the underside of the material web (3) and is then introduced between the material web (3) and the winding roll (2) by means of the material web (3).
  9. Method according to Claim 7, characterized in that the means (7) is initially applied with a temporary connection to the circumferential surface (4) of the winding roll (2) and is then introduced between the material web (3) and the winding roll (2) by means of the winding roll (2).
  10. Method according to one of Claims 1 to 4, characterized in that the means (7) is introduced substantially directly between the material web (3) and the winding core (6) by means of at least one discharge device (9.1).
  11. Method according to Claim 10, characterized in that, in the case of a winding core (6) around which the material web (3) does not wrap, the means (7) is introduced substantially directly into the nip (N1) by means of at least one discharge device (9.1).
  12. Method according to one of Claims 1 to 4, characterized in that the means (7) is introduced indirectly between the material web (3) and the winding core (6) by means of at least one discharge device (9.1).
  13. Method according to Claim 12, characterized in that the means (7) is initially applied to the top side of the material web (3) and is then introduced between the material web (3) and the winding core (6) by means of the material web (3).
  14. Method according to Claim 12, characterized in that the means (7) is initially applied with a temporary connection to the circumferential surface (4) of the winding core (6) and is then introduced between the material web (3) and the winding core (6) by means of the winding core (6).
  15. Method according to Claim 9 or 14, characterized in that the temporary connection is produced by means of at least one adhesive area, by means of electrostatic forces, by means of magnetic forces, by means of applying vacuum to the winding roll (2), by means of a hook and loop fastener or by means of at least one suction cup coupling.
  16. Method according to one of the preceding claims, characterized in that the means (7) forms the last device and/or the last element - seen in the running direction (LR) of the material web (3) - for dividing and/or transferring the material web (3) onto a winding core (6).
EP02027756A 2001-12-12 2002-12-11 Method for transfering a running material web onto a winding core and winding machine Expired - Lifetime EP1319617B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE2001161073 DE10161073A1 (en) 2001-12-12 2001-12-12 Method for forming reels of paper comprises severing web when reel change is required using cutter immediately in front of nip which incorporates system for holding cut edge against new core, e.g. adhesive
DE10161073 2001-12-12
DE10163554 2001-12-21
DE2001163554 DE10163554A1 (en) 2001-12-21 2001-12-21 Method for forming reels of paper comprises severing web when reel change is required using cutter immediately in front of nip which incorporates system for holding cut edge against new core, e.g. adhesive
DE10201410 2002-01-15
DE10201410A DE10201410A1 (en) 2002-01-15 2002-01-15 Method for forming reels of paper comprises severing web when reel change is required using cutter immediately in front of nip which incorporates system for holding cut edge against new core, e.g. adhesive
DE10206575 2002-02-18
DE10206575A DE10206575A1 (en) 2002-02-18 2002-02-18 Method for forming reels of paper comprises severing web when reel change is required using cutter immediately in front of nip which incorporates system for holding cut edge against new core, e.g. adhesive

Publications (2)

Publication Number Publication Date
EP1319617A1 EP1319617A1 (en) 2003-06-18
EP1319617B1 true EP1319617B1 (en) 2006-11-22

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EP02785421A Expired - Lifetime EP1456105B1 (en) 2001-12-12 2002-12-11 Method for transferring a running web onto a winding core and device for implementing said method
EP02027756A Expired - Lifetime EP1319617B1 (en) 2001-12-12 2002-12-11 Method for transfering a running material web onto a winding core and winding machine
EP05107461A Expired - Lifetime EP1612173B8 (en) 2001-12-12 2002-12-11 Method for transfering a running material web onto a winding core and winding machine

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JP2008230859A (en) 2008-10-02
AU2002350723A1 (en) 2003-06-23
CN1321869C (en) 2007-06-20
EP1319617A1 (en) 2003-06-18
JP4171420B2 (en) 2008-10-22
EP1456105B1 (en) 2006-04-05
EP1612173B8 (en) 2010-08-11
ATE354536T1 (en) 2007-03-15
WO2003050026A1 (en) 2003-06-19
JP2005511453A (en) 2005-04-28
EP1612173B1 (en) 2007-02-21
DE50206342D1 (en) 2006-05-18
CA2637323A1 (en) 2003-06-19
US20040211859A1 (en) 2004-10-28
ATE322449T1 (en) 2006-04-15
CA2470101A1 (en) 2003-06-19
DE50208767D1 (en) 2007-01-04
EP1612173A1 (en) 2006-01-04
US6929212B2 (en) 2005-08-16
CA2470101C (en) 2009-02-10
ATE346005T1 (en) 2006-12-15
CN1602278A (en) 2005-03-30
CA2637323C (en) 2010-11-30
BR0207367B1 (en) 2011-09-20
EP1456105A1 (en) 2004-09-15
BR0207367A (en) 2004-03-23
DE50209560D1 (en) 2007-04-05

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