EP1140679A1 - Method and device for connecting material strips - Google Patents

Method and device for connecting material strips

Info

Publication number
EP1140679A1
EP1140679A1 EP99968348A EP99968348A EP1140679A1 EP 1140679 A1 EP1140679 A1 EP 1140679A1 EP 99968348 A EP99968348 A EP 99968348A EP 99968348 A EP99968348 A EP 99968348A EP 1140679 A1 EP1140679 A1 EP 1140679A1
Authority
EP
European Patent Office
Prior art keywords
web
outgoing
adhesive strip
beginning
strip
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
EP99968348A
Other languages
German (de)
French (fr)
Other versions
EP1140679B1 (en
Inventor
Jürgen Hesse
Reinhard Hehner
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
Jagenberg Papiertechnik 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
Application filed by Jagenberg Papiertechnik GmbH filed Critical Jagenberg Papiertechnik GmbH
Publication of EP1140679A1 publication Critical patent/EP1140679A1/en
Application granted granted Critical
Publication of EP1140679B1 publication Critical patent/EP1140679B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1847—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place on the replacement 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
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/20—Cutting-off the expiring web
    • 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
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1768—Book covers and the like

Definitions

  • the invention relates to a method and a device for connecting the end of an outgoing material web to the beginning of the web of a new winding roll when unwinding material webs, in particular paper or cardboard webs, from a winding roll.
  • Unwinding heavy paper rolls which are wound on continuous metal axes (reels) and can have a weight of more than 50 t with a web width of 8 m and more, the subsequent processing machine is usually stopped for splicing.
  • EP 0 462 157-B1 discloses a method and a device of the generic type in which the outgoing web is first separated from the remaining roll and the end of the separated outgoing web is held while the remaining roll is against a new winding roll is exchanged. At the beginning of the web of the new winding roll, an adhesive strip is attached, against which the end of the outgoing web is pressed in order to attach it to the new roll.
  • the inaccuracies when attaching the adhesive tape and / or when positioning the new winding roll mean that the end of the web does not end exactly with the adhesive tape, but rather that there is a free, non-glued web remnant which is left when the winding rolls are processed further, for example in a printing or cross cutting machine. Can cause interference.
  • the object of the invention is to improve a method and a device of the generic type in such a way that a connection can be made without or with only minimal protruding, non-glued web residues.
  • the end of the outgoing web is connected to the beginning of the web by means of two adhesive strips which extend over the web width.
  • the first adhesive strip can be attached exactly at the beginning of the new winding roll, and the second adhesive strip can be attached exactly along the end of the outgoing web.
  • both the end of the outgoing web is glued to the new web start and the new web start is glued to the outgoing web. Since the two adhesive strips can be positioned exactly, there is neither a protruding free start of the new web nor a protruding free end of the outgoing web.
  • the second adhesive strip attached to the end of the web is preferably pressed against the new winding roller behind the adhesive strip at the beginning of the web in order to keep the thickness of the splice point as small as possible.
  • the subclaims contain preferred, since particularly advantageous, embodiments of the invention.
  • Figure 7 shows the junction of the two webs.
  • FIGS. 1 to 4 The embodiment of the invention shown in FIGS. 1 to 4 is part of an unwinding device for heavy paper rolls 1, which are wound on continuous metal axes 2 referred to as reels and can have a weight of over 50 l with a web width of 8 m and more .
  • FIG. 1 shows the side view of the unwinding device during unwinding.
  • the winding roll 1 is suspended with its reel 2 in a unwinding frame with two side stands 3.
  • a lateral brake generator which can brake the winding roll 1 in generator operation as well as drive it in motor operation, is not shown in the simplified drawings.
  • the paper web 4 is drawn off from above and deflected by a guide roller 5 to a subsequent roll cutting and winding machine, where it is longitudinally divided into individual webs and wound up into smaller winding rolls.
  • the device according to the invention for connecting webs contains two lateral pivot levers 6, which are each pivotably mounted outside the region of the web 4 by means of a piston-cylinder unit 7 about a pivot axis 8 running below the guide roller 5.
  • each pivot lever 6 contains a web holding device.
  • the splice element is an internally hollow splice bar 9, which is shown enlarged in FIGS. 5 and 6.
  • the splice beam 9 is pivotally mounted on the pivot levers 6 about an axis 10 running parallel to its longitudinal direction by means of a piston-cylinder unit 11, so that its front wall 12 facing the winding roll 1 can be aligned parallel to the web 4.
  • the front wall 12 contains a series of suction channels 13, the outer openings of which form a suction zone with which the end of the running web 14 - as shown in FIG. 3 - can be held after the web 4 has been severed.
  • the interior of the bar 9 is connected to a suction fan.
  • the pivot levers 6 with the splice beam 9 attached to them are constructed and mounted in such a way that the splice beam 9 can be pivoted from the rest position shown in FIG. 1, which does not disturb the course of the web 4, into the web 4 running off a residual roll 17, as in FIG 2 is shown.
  • the splice beam 9 can be pivoted from the rest position shown in FIG. 1, which does not disturb the course of the web 4, into the web 4 running off a residual roll 17, as in FIG 2 is shown.
  • the device further includes a separating device 16 for severing the web 4 and a device 15 for applying an adhesive strip 18 extending over the entire web width along the web end of the outgoing web 14 created during the severing, which are only shown in FIGS. 1 and 2.
  • the web separating device 16 is arranged such that the web 4 sucked in by the front wall 12 of the splice beam 9 is cut transversely along the rear edge of the front wall 12 in the web running direction.
  • a circular knife that can be moved across the working width and is supported on the splice beam 9 is preferably used as the separating device 16.
  • the device 15 for applying an adhesive strip 18 to the end of the running web 14 preferably consists of a transversely movable adhesive tape dispenser, which is likewise movably mounted on the splice bar 9.
  • the adhesive tape application device 15 is arranged relative to the web separating device 16 in this way. net that the adhesive strip 18 - as shown in Figure 5 - is applied directly along the end of the outgoing web 14, so that there is no or only a minimally protruding free web residue.
  • FIG. 1 shows the splicing device in its rest position while the web 4 is being unwound from the winding roll 1.
  • the splice beam 9, which extends over the web width, is pivoted up into a rest position which does not disturb the course of the web 4.
  • the unwinding process is braked.
  • the splice beam 9 is moved against the taut web 4, its front wall 12 being simultaneously aligned parallel to the web 4 so that the front surface designed as a suction zone lies flat.
  • a vacuum is generated in the splice beam 9 with the suction fan, so that the web 4 adheres to the front wall 12 (FIG. 2).
  • the adhesive tape dispenser 15 applies an adhesive strip 18 to the web 4 and cuts it in the web running direction immediately behind the applied adhesive strip 18 by the separating device 16.
  • the end of the separated running web 14 is held by the splice beam 9, the adhesive strip 18 runs directly along the end of the running web 14, as shown in FIG. Its distance from the end of the web is less than 10 mm, preferably less than 5 mm.
  • the new full winding roll 1 is prepared in such a way that an adhesive strip 20 is attached to the outside of its web start 19 (FIG. 3).
  • the new winding roll 1 is positioned in the unwinding device in such a way that, when the splice beam 9 moves against the new winding roll 1, the end of the web 14 running off with the start 19 of the new winding roll 1 is moved somewhat overlapping towards one another (FIGS. 4 to 6) ).
  • the overlap of the two webs 18, 19 is less than 200 mm, preferably about 100 mm.
  • the adhesive strip 18 is moved against the beginning of the web 19 at the end of the web so that it runs with little Glue the space behind the adhesive strip 20 at the beginning of the web 19. This results in the web connection shown in FIG.

Abstract

The invention relates to the unwinding of material strips (4), especially paper or cardboard strips. According to prior art, the end of a running material strip (14) is connected to the beginning of the strip (19) of a new winding roller (1) in the following manner: The running strip (14) is severed from the rest of the roller (17). The end of the severed, running strip (14) is held by means of a splice element (9) while the rest of the roller (17) is exchanged for a new full winding roller (1), whereby a paster tab (20) is attached to the end thereof. The end of the running strip (14) is subsequently pressed against the paster tab (20) in order to produce a pasted connection. According to the invention, a second paster tab (18) is attached to the end of the running strip (14) before the pasted connection is produced. Said second paster tab (18) produces a second pastered connection when the end of the running strip (14) is pressed against the beginning of the strip (19). A connection is thus produced which has no or only minimally protruding non-pastered remaining parts of the strip.

Description

B E S C H R E I B U N G DESCRIPTION
Verfahren und Vorrichtung zum Verbinden von MaterialbahnenMethod and device for connecting material webs
Technisches GebietTechnical field
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Verbinden des Endes einer auslaufenden Materialbahn mit dem Bahnanfang einer neuen Wickelrolle beim Abwickeln von Materialbahnen, insbesondere Papier- oder Kartonbahnen, von einer Wickelrolle.The invention relates to a method and a device for connecting the end of an outgoing material web to the beginning of the web of a new winding roll when unwinding material webs, in particular paper or cardboard webs, from a winding roll.
Stand der TechnikState of the art
Bei Abwickelvorrichtungen für Wickelrollen aus Materialbahnen, beispielsweise Papieroder Kartonbahnen, sind Splice-Vorrichtungen bekannt, die das Ende der auslaufen- den Materialbahn mit dem Bahnanfang einer neuen Wickelrolle verbinden. BeimIn the case of unwinding devices for winding rolls made of material webs, for example paper or cardboard webs, splice devices are known which connect the end of the outgoing material web with the start of the web of a new winding roll. At the
Abwickeln von schweren Papierrollen, die auf durchgehende Metallachsen (Tamboure) aufgewickelt sind und bei einer Bahnbreite von 8 m und mehr ein Gewicht von über 50 t aufweisen können, wird zum Splicen üblicherweise die nachfolgende Verarbeitungsmaschine stillgesetzt.Unwinding heavy paper rolls, which are wound on continuous metal axes (reels) and can have a weight of more than 50 t with a web width of 8 m and more, the subsequent processing machine is usually stopped for splicing.
Aus der EP 0 462 157-B1 ist ein Verfahren und eine Vorrichtung der gattungsgemäßen Art bekannt, bei dem (der) zunächst die auslaufende Bahn von der Restrolle abgetrennt wird und das Ende der abgetrennten auslaufenden Bahn gehalten wird, während die Restrolle gegen eine neue Wickelrolle ausgetauscht wird. Am Bahnanfang der neuen Wickelrolle ist ein Klebestreifen angebracht, gegen den das Ende der auslaufenden Bahn gedrückt wird, um dieses an der neuen Rolle zu befestigen.EP 0 462 157-B1 discloses a method and a device of the generic type in which the outgoing web is first separated from the remaining roll and the end of the separated outgoing web is held while the remaining roll is against a new winding roll is exchanged. At the beginning of the web of the new winding roll, an adhesive strip is attached, against which the end of the outgoing web is pressed in order to attach it to the new roll.
Bei den bekannten Verfahren und Vorrichtungen tritt das Problem auf, das es insbesondere bei sehr großen und schweren Wickelrollen und großen Bahnbreiten nicht möglich ist, eine sichere Bahnverbindung mit einem nur kurzen überstehenden freien Bahnende herzustellen. Dies hat seine Ursache zum einen darin, dass es nicht möglich ist, den Klebestreifen auf dem Bahnanfang der neuen Wickelrolle exakt achsparallel ausgerichtet anzubringen. Zum anderen ist es nicht möglich, die neue Wickelrolle umfänglich so exakt zu positionieren, dass die Haltevorrichtung mit dem Bahnende genau gegen den Klebestreifen bewegt wird. Die Ungenauigkeiten beim Anbringen des Klebestreifens und/oder beim Positionieren der neuen Wickelrolle führen dazu, dass das Bahnende nicht exakt mit dem Klebestreifen endet, sondern ein freier, nicht angeklebter Bahnrest übersteht, der beim Weiterverarbeiten der Wickelrollen, beispielsweise in einer Druck- oder Querschneidemaschine, Störungen verursa- chen kann.In the known methods and devices, the problem arises that it is not possible, in particular with very large and heavy winding rolls and large web widths, to have a secure web connection with a short, protruding one to produce a free web end. One of the reasons for this is that it is not possible to apply the adhesive strip on the start of the web of the new winding roll, aligned exactly parallel to the axis. On the other hand, it is not possible to position the new winding roll so precisely around the circumference that the holding device is moved with the end of the web exactly against the adhesive strip. The inaccuracies when attaching the adhesive tape and / or when positioning the new winding roll mean that the end of the web does not end exactly with the adhesive tape, but rather that there is a free, non-glued web remnant which is left when the winding rolls are processed further, for example in a printing or cross cutting machine. Can cause interference.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der gattungsgemäßen Art so zu verbessern, dass eine Verbindung ohne oder mit nur minimalen überstehenden, nicht angeklebten Bahnresten hergestellt werden kann.The object of the invention is to improve a method and a device of the generic type in such a way that a connection can be made without or with only minimal protruding, non-glued web residues.
Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 bzw. Patentanspruch 5 gelöst.This object is achieved with the features of claim 1 and claim 5.
Nach der Erfindung wird das Ende der auslaufenden Bahn mit dem Bahnanfang mittels zweier sich über die Bahnbreite erstreckender Klebestreifen verbunden. Vor dem Splicen kann so der erste Klebestreifen exakt am Anfang der neuen Wickelrolle angebracht werden, der zweite Klebestreifen kann exakt entlang des Endes der auslaufenden Bahn an dieser angebracht werden. Beim Verbinden der Bahnen wird so sowohl das Ende der auslaufenden Bahn an den neuen Bahnanfang, als auch der neue Bahnanfang an der auslaufenden Bahn festgeklebt. Da die beiden Klebestreifen jeweils exakt positioniert werden können, entsteht weder ein überstehender freier Bahnanfang der neuen Bahn noch ein überstehendes freies Ende der auslaufenden Bahn.According to the invention, the end of the outgoing web is connected to the beginning of the web by means of two adhesive strips which extend over the web width. Before splicing, the first adhesive strip can be attached exactly at the beginning of the new winding roll, and the second adhesive strip can be attached exactly along the end of the outgoing web. When connecting the webs, both the end of the outgoing web is glued to the new web start and the new web start is glued to the outgoing web. Since the two adhesive strips can be positioned exactly, there is neither a protruding free start of the new web nor a protruding free end of the outgoing web.
Bevorzugt wird der zweite, am Bahnende angebrachte Klebestreifen in Bahnlaufrichtung hinter dem Klebestreifen des Bahnanfangs gegen die neue Wickelrolle gedrückt, um die Dicke der Splicestelle möglichst gering zu halten, wie in Patentanspruch 2 beansprucht ist. Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The second adhesive strip attached to the end of the web is preferably pressed against the new winding roller behind the adhesive strip at the beginning of the web in order to keep the thickness of the splice point as small as possible. The subclaims contain preferred, since particularly advantageous, embodiments of the invention.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Es zeigen:Show it:
Die FigurenThe figures
1 bis 4 in Seitenansicht den Aufbau und die Arbeitsweise einer Vorrichtung zum Verbinden von Materialbahnen,1 to 4 in side view the structure and operation of a device for connecting material webs,
die Figurenthe figures
5 und 6 in vergrößerter Darstellung das Splice-Element und seine Arbeitsweise, und5 and 6 in an enlarged view the splice element and its mode of operation, and
Figur 7 die Verbindungsstelle der beiden Bahnen.Figure 7 shows the junction of the two webs.
Wege zur Ausführung der ErfindungWays of Carrying Out the Invention
Die in den Figuren 1 bis 4 dargestellte Ausführungsform der Erfindung ist Bestandteil einer Abwickelvorrichtung für schwere Papierrollen 1 , die auf als Tamboure bezeich- nete, durchgehende Metallachsen 2 aufgewickelt sind und bei einer Bahnbreite von 8 m und mehr ein Gewicht von über 50 1 aufweisen können. In Figur 1 ist die Seitenansicht der Abwickelvorrichtung beim Abwickeln dargestellt.The embodiment of the invention shown in FIGS. 1 to 4 is part of an unwinding device for heavy paper rolls 1, which are wound on continuous metal axes 2 referred to as reels and can have a weight of over 50 l with a web width of 8 m and more . FIG. 1 shows the side view of the unwinding device during unwinding.
Die Wickelrolle 1 ist mit ihrem Tambour 2 in einem Abwickelgestell mit zwei seitlichen Ständern 3 eingehängt. Ein seitlicher Bremsgenerator, der sowohl die Wickelrolle 1 im generatorischen Betrieb abbremsen als auch im motorischen Betrieb antreiben kann, ist in den vereinfachten Zeichnungen nicht dargestellt. Die Papierbahn 4 wird von oben abgezogen und von einer Leitwalze 5 umgelenkt zu einer nachfolgenden Rollenschneid- und -Wickelmaschine geführt, wo sie in Einzelbahnen längsgeteilt und zu kleineren Wickelrollen aufgewickelt wird. Die erfindungsgemäße Vorrichtung zum Verbinden von Bahnen enthält zwei seitliche Schwenkhebel 6, die jeweils außerhalb des Bereichs der Bahn 4 mittels einer Kolben- Zylinder-Einheit 7 um eine unterhalb der Leitwalze 5 verlaufende Schwenkachse 8 schwenkbar gelagert sind. Am freien Ende jedes Schwenkhebels 6 ist ein sich über die Arbeitsbreite erstreckendes Splice-Element befestigt, das eine Bahnhalteeinrichtung enthält. Im vorliegenden Beispiel ist das Splice-Element ein im Innern hohler Splicebal- ken 9, der in den Figuren 5 und 6 vergrößert dargestellt ist. Der Splicebalken 9 ist um eine parallel zu seiner Längsrichtung verlaufende Achse 10 mittels einer Kolben- Zylinder-Einheit 11 schwenkbar an den Schwenkhebeln 6 gelagert, damit seine der Wickelrolle 1 zugewandte vordere Wand 12 parallel zur Bahn 4 ausgerichtet werden kann. Die Vorderwand 12 enthält eine Reihe von Saugkanälen 13, deren äußere Öffnungen eine Saugzone bilden, mit der das Ende der ablaufenden Bahn 14 - wie in Figur 3 dargestellt - nach dem Durchtrennen der Bahn 4 festgehalten werden kann. Zur Erzeugung des die Bahn 14 festhaltenden Unterdrucks ist das Innere des Balkens 9 an ein Sauggebläse angeschlossen.The winding roll 1 is suspended with its reel 2 in a unwinding frame with two side stands 3. A lateral brake generator, which can brake the winding roll 1 in generator operation as well as drive it in motor operation, is not shown in the simplified drawings. The paper web 4 is drawn off from above and deflected by a guide roller 5 to a subsequent roll cutting and winding machine, where it is longitudinally divided into individual webs and wound up into smaller winding rolls. The device according to the invention for connecting webs contains two lateral pivot levers 6, which are each pivotably mounted outside the region of the web 4 by means of a piston-cylinder unit 7 about a pivot axis 8 running below the guide roller 5. At the free end of each pivot lever 6, a splice element extending across the working width is attached, which contains a web holding device. In the present example, the splice element is an internally hollow splice bar 9, which is shown enlarged in FIGS. 5 and 6. The splice beam 9 is pivotally mounted on the pivot levers 6 about an axis 10 running parallel to its longitudinal direction by means of a piston-cylinder unit 11, so that its front wall 12 facing the winding roll 1 can be aligned parallel to the web 4. The front wall 12 contains a series of suction channels 13, the outer openings of which form a suction zone with which the end of the running web 14 - as shown in FIG. 3 - can be held after the web 4 has been severed. To generate the vacuum holding the web 14, the interior of the bar 9 is connected to a suction fan.
Die Schwenkhebel 6 mit dem daran befestigten Splicebalken 9 sind so konstruiert und gelagert, dass der Splicebalken 9 aus der in Figur 1 dargestellten, den Lauf der Bahn 4 nicht störenden Ruheposition in die von einer Restrolle 17 ablaufende Bahn 4 geschwenkt werden kann, wie in Figur 2 dargestellt ist. Zugleich läßt sich derThe pivot levers 6 with the splice beam 9 attached to them are constructed and mounted in such a way that the splice beam 9 can be pivoted from the rest position shown in FIG. 1, which does not disturb the course of the web 4, into the web 4 running off a residual roll 17, as in FIG 2 is shown. At the same time, the
Splicebalken 9 mit seiner Vorderwand 12 gegen eine neu eingelegte volle Wickelrolle 1 bewegen. Diese Position ist in Figur 4 dargestellt.Move the splice beam 9 with its front wall 12 against a newly inserted full winding roll 1. This position is shown in Figure 4.
Die Vorrichtung enthält weiterhin eine Trenneinrichtung 16 zum Durchtrennen der Bahn 4 und eine Einrichtung 15 zum Auftragen eines sich über die gesamte Bahnbreite erstreckenden Klebestreifens 18 entlang des beim Durchtrennen geschaffenen Bahnendes der auslaufenden Bahn 14, die nur in den Figuren 1 und 2 dargestellt sind. Die Bahntrenneinrichtung 16 ist so angeordnet, dass die von der Vorderwand 12 des Splicebalkens 9 angesaugte Bahn 4 quer entlang der in Bahnlaufrichtung hinteren Kante der Vorderwand 12 durchgetrennt wird. Bevorzugt wird als Trenneinrichtung 16 ein quer über die Arbeitsbreite verfahrbares Kreismesser verwendet, das an dem Splicebalken 9 gelagert ist. Die Einrichtung 15 zum Auftragen eines Klebestreifens 18 auf das Ende der ablaufenden Bahn 14 besteht bevorzugt aus einem querverfahrbaren Klebebandspender, der ebenfalls an dem Splicebalken 9 verfahrbar gelagert ist. Die Klebstreifenauftragseinrichtung 15 ist relativ zur Bahntrenneinrichtung 16 so angeord- net, dass der Klebestreifen 18 - wie in Figur 5 dargestellt - unmittelbar entlang des Endes der auslaufenden Bahn 14 aufgetragen wird, so dass kein oder nur ein minimal kleiner überstehender freier Bahnrest entsteht.The device further includes a separating device 16 for severing the web 4 and a device 15 for applying an adhesive strip 18 extending over the entire web width along the web end of the outgoing web 14 created during the severing, which are only shown in FIGS. 1 and 2. The web separating device 16 is arranged such that the web 4 sucked in by the front wall 12 of the splice beam 9 is cut transversely along the rear edge of the front wall 12 in the web running direction. A circular knife that can be moved across the working width and is supported on the splice beam 9 is preferably used as the separating device 16. The device 15 for applying an adhesive strip 18 to the end of the running web 14 preferably consists of a transversely movable adhesive tape dispenser, which is likewise movably mounted on the splice bar 9. The adhesive tape application device 15 is arranged relative to the web separating device 16 in this way. net that the adhesive strip 18 - as shown in Figure 5 - is applied directly along the end of the outgoing web 14, so that there is no or only a minimally protruding free web residue.
Figur 1 zeigt die Splicevorrichtung in ihrer Ruheposition, während die Bahn 4 von der Wickelrolle 1 abgewickelt wird. Der sich über die Bahnbreite erstreckende Splicebalken 9 ist in eine den Lauf der Bahn 4 nicht störende Ruheposition hochgeschwenkt.FIG. 1 shows the splicing device in its rest position while the web 4 is being unwound from the winding roll 1. The splice beam 9, which extends over the web width, is pivoted up into a rest position which does not disturb the course of the web 4.
Ist die Wickelrolle 1 bis auf eine Restrolle 17 von mindestens 3 bis 4 Papierlagen abgewickelt, so wird der Abwickelvorgang abgebremst. Bei stillstehender Bahn 4 wird der Splicebalken 9 gegen die straffe Bahn 4 bewegt, wobei seine Vorderwand 12 zugleich parallel zur Bahn 4 ausgerichtet wird, damit sich die als Saugzone ausgebildete Vorderfläche flächig anlegt. Mit dem Sauggebläse wird ein Unterdruck im Splicebalken 9 erzeugt, so dass die Bahn 4 an der Vorderwand 12 haftet (Figur 2). Anschließend wird von dem Klebebandspender 15 ein Klebestreifen 18 auf die Bahn 4 aufgetragen und diese in Bahnlaufrichtung unmittelbar hinter dem aufgetragenen Klebestreifen 18 von der Trenneinrichtung 16 durchgetrennt. Das Ende der abgetrennten ablaufenden Bahn 14 wird von dem Splicebalken 9 gehalten, der Klebestreifen 18 verläuft unmittelbar entlang des Endes der ablaufenden Bahn 14, wie in Figur 5 dargestellt ist. Sein Abstand vom Bahnende beträgt weniger als 10 mm, bevorzugt weniger als 5 mm.If the winding roll 1 is unwound except for a remaining roll 17 of at least 3 to 4 layers of paper, the unwinding process is braked. When the web 4 is at a standstill, the splice beam 9 is moved against the taut web 4, its front wall 12 being simultaneously aligned parallel to the web 4 so that the front surface designed as a suction zone lies flat. A vacuum is generated in the splice beam 9 with the suction fan, so that the web 4 adheres to the front wall 12 (FIG. 2). Subsequently, the adhesive tape dispenser 15 applies an adhesive strip 18 to the web 4 and cuts it in the web running direction immediately behind the applied adhesive strip 18 by the separating device 16. The end of the separated running web 14 is held by the splice beam 9, the adhesive strip 18 runs directly along the end of the running web 14, as shown in FIG. Its distance from the end of the web is less than 10 mm, preferably less than 5 mm.
Anschließend wird der Splicebalken 9 mit dem von ihm gehaltenen Ende der ablaufenden Bahn 14 hochgeschwenkt, und die Restrolle 17 wird in der Abwickelvor- richtung gegen eine neue volle Wickelrolle 1 ausgetauscht. Die neue volle Wickelrolle 1 ist so vorbereitet, dass außen an ihrem Bahnanfang 19 ein Klebestreifen 20 angebracht ist (Figur 3). Der Klebestreifen 20, bevorzugt ebenfalls ein doppelseitig klebendes Klebeband, wurde so außen am Bahnanfang 19 befestigt, dass kein oder nur ein geringer Bahnrest übersteht. Die neue Wickelrolle 1 wird in der Abwickelvor- richtung so positioniert, dass bei der anschließenden Bewegung des Splicebalkens 9 gegen die neue Wickelrolle 1 das Bahnende der ablaufenden Bahn 14 mit dem Bahnanfang 19 der neuen Wickelrolle 1 etwas überlappend aufeinander zubewegt werden (Figuren 4 bis 6). Die Überlappung der beiden Bahnen 18, 19 beträgt dabei weniger als 200 mm, bevorzugt ca. 100 mm. Dabei wird der Klebestreifen 18 am ablaufenden Bahnende so gegen den Bahnanfang 19 bewegt, dass er mit geringem Abstand hinter dem Klebestreifen 20 am Bahnanfang 19 festklebt. Es entsteht die in Figur 7 dargestellte Bahnverbindung, bei der sowohl das Bahnende mittels des Klebestreifens 18 am Bahnanfang 19 festgeklebt ist, als auch der Bahnanfang 19 mittels des Klebestreifens 20 am Ende der Bahn 14. So werden freie, nicht angeklebte Bahnreste vermieden, die in der nachfolgenden Verarbeitungsmaschine zu Störungen führen könnten. Subsequently, the splice beam 9 is pivoted up with the end of the running web 14 held by it, and the remaining roll 17 is exchanged in the unwinding device for a new full winding roll 1. The new full winding roll 1 is prepared in such a way that an adhesive strip 20 is attached to the outside of its web start 19 (FIG. 3). The adhesive strip 20, preferably likewise a double-sided adhesive tape, was fastened to the outside of the web start 19 in such a way that no or only a small amount of web residue survives. The new winding roll 1 is positioned in the unwinding device in such a way that, when the splice beam 9 moves against the new winding roll 1, the end of the web 14 running off with the start 19 of the new winding roll 1 is moved somewhat overlapping towards one another (FIGS. 4 to 6) ). The overlap of the two webs 18, 19 is less than 200 mm, preferably about 100 mm. In this case, the adhesive strip 18 is moved against the beginning of the web 19 at the end of the web so that it runs with little Glue the space behind the adhesive strip 20 at the beginning of the web 19. This results in the web connection shown in FIG. 7, in which both the end of the web is glued to the start of the web 19 by means of the adhesive strip 18 and the beginning of the web 19 by means of the adhesive strip 20 at the end of the web 14. Free, non-glued web remnants are avoided, which the subsequent processing machine could lead to malfunctions.

Claims

PATENTANSPRÜCH E PATENT CLAIM E
1.1.
Verfahren zum Verbinden des Endes einer auslaufenden Materialbahn (14) mit dem Bahnanfang (19) einer neuen Wickelrolle (1 ) beim Abwickeln von Materialbahnen (4), insbesondere Papier- oder Kartonbahnen, von einer Wickelrolle (1 ), bei dem die auslaufende Bahn (14) von der Restrolle (17) abgetrennt wird, - das Ende der abgetrennten auslaufenden Bahn (14) von einem Splice-Element (9) gehalten wird, während die Restrolle (17) gegen eine neue volle Wickelrolle (1 ) ausgetauscht wird, an deren Bahnanfang (19) ein Klebestreifen (20) angebracht ist, und anschließend das Ende der auslaufenden Bahn (14) zur Herstellung einer Klebeverbindung gegen den Klebestreifen (20) am Bahnanfang (19) gedrückt wird, dadurch gekennzeichnet, dass vor Herstellung der Klebeverbindung am Ende der auslaufenden Bahn (14) ein zweiter Klebestreifen (18) angebracht wird, der beim Andrücken des Endes der auslaufenden Bahn (14) gegen den Bahnanfang (19) eine zweite Klebeverbindung herstellt.Method for connecting the end of an outgoing material web (14) to the beginning of the web (19) of a new winding roll (1) when unwinding material webs (4), in particular paper or cardboard webs, from a winding roll (1), in which the outgoing web ( 14) is separated from the remaining roll (17), - the end of the separated outgoing web (14) is held by a splice element (9) while the remaining roll (17) is exchanged for a new full winding roll (1) the beginning of the web (19) has an adhesive strip (20) attached, and then the end of the outgoing web (14) is pressed against the adhesive strip (20) at the beginning of the web (19) to produce an adhesive connection, characterized in that before the adhesive connection is made on At the end of the outgoing web (14), a second adhesive strip (18) is attached, which produces a second adhesive connection when the end of the outgoing web (14) is pressed against the beginning of the web (19).
2.Second
Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der zweite Klebestreifen (18) beim Verbinden der Bahnen in Bahnlaufrichtung hinter dem ersten Klebestreifen (20) gegen den Bahnanfang (19) der neuen Wickelrolle (1) gedrückt wird.A method according to claim 1, characterized in that the second adhesive strip (18) is pressed against the beginning of the web (19) of the new winding roll (1) behind the first adhesive strip (20) when connecting the webs in the web running direction.
3.Third
Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der zweite Klebestreifen (18) beim Abschneiden der auslaufenden Bahn (14) an deren Bahnende angebracht wird. A method according to claim 1 or 2, characterized in that the second adhesive strip (18) is attached to the end of the web when the outgoing web (14) is cut off.
4.4th
Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der zweite Klebestreifen (18) in einem Abstand von weniger als 10 mm, bevorzugt weniger als 5 mm, vom Ende der auslaufenden Bahn (14) an dieser angebracht wird.Method according to one of claims 1 to 3, characterized in that the second adhesive strip (18) is attached to the end of the outgoing web (14) at a distance of less than 10 mm, preferably less than 5 mm.
5.5th
Vorrichtung zum Verbinden des Endes einer auslaufenden Materialbahn (14) mit dem Bahnanfang (19) einer neuen Wickelrolle (1) beim Abwickeln von Materialbahnen (4), insbesondere Papier- oder Kartonbahnen, mit einer Einrichtung (16) zum Durchtrennen der Bahn (4) und einem an die Bahn (4) anlegbaren, außerhalb des Bereichs einer vollen Wickelrolle (1 ) bewegbaren, und an deren Außenumfang andrückbaren Splice-Element (9) zum Halten des Endes der auslaufenden Bahn (14), gekennzeichnet durch eine Einrichtung (15) zum Auftragen eines Klebestreifens (18) auf das beim Durchtrennen der Bahn (4) geschaffene Ende der auslaufenden Bahn (14).Device for connecting the end of an outgoing material web (14) to the beginning of the web (19) of a new winding roll (1) when unwinding material webs (4), in particular paper or cardboard webs, with a device (16) for severing the web (4) and a splice element (9) which can be placed on the web (4), can be moved outside the area of a full winding roll (1) and can be pressed on the outer circumference thereof, for holding the end of the outgoing web (14), characterized by a device (15) for applying an adhesive strip (18) to the end of the outgoing web (14) created when the web (4) is cut.
6.6th
Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Bahntrenneinrichtung (16) und die Einrichtung zum Auftragen des Klebestreifens (18) an dem Splice- Element (9) gelagert sind.Apparatus according to claim 5, characterized in that the web separating device (16) and the device for applying the adhesive strip (18) are mounted on the splice element (9).
7.7th
Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass das Splice- Element aus einem sich über die Arbeitsbreite erstreckenden Saugbalken (9) besteht, der schwenkbar an Schwenkhebeln (6) befestigt ist, dessen Inneres an ein Sauggebläse angeschlossen ist und dessen Vorderwand (12) eine Reihe von Saugkanälen (13) zum Halten des Endes der auslaufenden Bahn (14) aufweist. Apparatus according to claim 5 or 6, characterized in that the splice element consists of a suction bar (9) which extends over the working width and which is pivotally attached to pivoting levers (6), the interior of which is connected to a suction fan and the front wall (12 ) has a series of suction channels (13) for holding the end of the outgoing web (14).
EP99968348A 1999-01-13 1999-12-17 Method and device for connecting material strips Expired - Lifetime EP1140679B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19901026 1999-01-13
DE19901026A DE19901026A1 (en) 1999-01-13 1999-01-13 Method and device for connecting material webs
PCT/EP1999/010033 WO2000041958A1 (en) 1999-01-13 1999-12-17 Method and device for connecting material strips

Publications (2)

Publication Number Publication Date
EP1140679A1 true EP1140679A1 (en) 2001-10-10
EP1140679B1 EP1140679B1 (en) 2002-08-07

Family

ID=7894131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99968348A Expired - Lifetime EP1140679B1 (en) 1999-01-13 1999-12-17 Method and device for connecting material strips

Country Status (5)

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US (1) US6565034B1 (en)
EP (1) EP1140679B1 (en)
AT (1) ATE221845T1 (en)
DE (2) DE19901026A1 (en)
WO (1) WO2000041958A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200512147A (en) * 2003-07-25 2005-04-01 Black Clawson Converting Machinery Inc Method and apparatus for splicing webs
JP4170181B2 (en) * 2003-09-09 2008-10-22 リンテック株式会社 Belt-like body connection device and connection method
US8163118B2 (en) * 2009-06-21 2012-04-24 Jere F. Irwin Thermoformable web splicer and method
IT1399786B1 (en) * 2010-05-04 2013-05-03 Carlesi METHOD AND ITS APPARATUS FOR REPLACEMENT OF THE COIL IN A UNWINDER.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI74063C (en) * 1984-07-11 1987-12-10 Valmet Paper Machinery Inc A method for joining the end of a first web and the end of a second web with each other and means for carrying out the method
US4880178A (en) * 1988-08-04 1989-11-14 Mobil Oil Corporation Roll unwind butt splicer
DE3901854A1 (en) * 1989-01-23 1990-07-26 Jagenberg Ag DEVICE FOR JOINING MATERIAL RAILS
DE3907136A1 (en) 1989-03-06 1990-09-13 Jagenberg Ag DEVICE FOR JOINING MATERIAL RAILS
US5356496A (en) 1992-06-15 1994-10-18 The Black Clawson Company Splice tail tape-down method and apparatus
US6161793A (en) * 1999-01-22 2000-12-19 Lindstrand; Bruce L. Paper unwind splicer for drawing from the top or bottom of a reel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0041958A1 *

Also Published As

Publication number Publication date
EP1140679B1 (en) 2002-08-07
US6565034B1 (en) 2003-05-20
ATE221845T1 (en) 2002-08-15
DE59902308D1 (en) 2002-09-12
DE19901026A1 (en) 2000-07-20
WO2000041958A1 (en) 2000-07-20

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