EP1136408A2 - Roll changer for a device for manufacturing hygiène products - Google Patents

Roll changer for a device for manufacturing hygiène products Download PDF

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Publication number
EP1136408A2
EP1136408A2 EP01103423A EP01103423A EP1136408A2 EP 1136408 A2 EP1136408 A2 EP 1136408A2 EP 01103423 A EP01103423 A EP 01103423A EP 01103423 A EP01103423 A EP 01103423A EP 1136408 A2 EP1136408 A2 EP 1136408A2
Authority
EP
European Patent Office
Prior art keywords
holding
changer according
embossing
guiding
material web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01103423A
Other languages
German (de)
French (fr)
Other versions
EP1136408B1 (en
EP1136408A3 (en
Inventor
Wolfgang Stein
Reiner Seger
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.)
Winkler and Duennebier GmbH
Original Assignee
Winkler and Duennebier 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 Winkler and Duennebier GmbH filed Critical Winkler and Duennebier GmbH
Publication of EP1136408A2 publication Critical patent/EP1136408A2/en
Publication of EP1136408A3 publication Critical patent/EP1136408A3/en
Application granted granted Critical
Publication of EP1136408B1 publication Critical patent/EP1136408B1/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
    • B65H19/10—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
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring 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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to 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
    • B65H19/10—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
    • B65H19/1852—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 at a distance from 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46174—Processing webs in splicing process after splicing cutting webs in splicing process cutting both spliced webs separately
    • 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
    • B65H2301/4632—Simultaneous deformation of the two web ends
    • 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
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers

Definitions

  • the invention relates to a reel changer for connecting Start and end pieces of material webs in one device for the manufacture of hygiene products and includes other features according to the preamble of claim 1.
  • a method and an apparatus of the type of interest here are basically known from EP 0 525 075 B1. This is how it describes it Document a method and an apparatus for connecting at least two single or multiple layers, permeable to air as well as materials containing soft paper webs. Connected are the material webs by splicing in the nip of two embossing rollers. The beginning of the material web to be connected first with the help of a Suction box, the holding force of which is released when the web is on the end piece of the other track is to be connected.
  • the invention is therefore based on the object, the requirements to make changing roles as easy and quick as possible, which can be carried out with only a small amount of work.
  • the invention provides with the features of characterizing part of claim 1 that the starting piece a new material web can be fixed to an embossing roller and that at least one embossing roller can be driven and at least one Embossing roller towards and away from the other embossing roller is movable.
  • the starting piece is the one to be connected Material web directly on one of the two stationary Embossing rollers fixed.
  • Both embossing rollers point for this purpose preferably a suction bar or a row of suction openings and can be connected to vacuum lines.
  • the two embossing rollers are used to connect the material webs pressed together and set in rotation.
  • the measures mentioned can be prepared well.
  • the actual The splicing process can then be carried out safely and reliably.
  • the result is a quick change of roles with a short-term transition from the end of one material web to the beginning of the next Material web.
  • Both embossing rollers 11, 12 do not have Free turning devices shown such that the embossing roller 11 only in the direction of arrow 24 and the embossing roller 12 only in the direction the arrow 25 is rotatable. With suitable backstops, the Embossing roller 11 can thus only be rotated clockwise in FIG. 2 and the Embossing roller 12 can only be rotated counterclockwise.
  • the one embossing roller 11 is towards and from the other embossing roller 12 this movable away.
  • the embossing roller 11 is on a carrier 13 stored and together with the carrier 13 about an axis 14 swiveling.
  • a controllable drive 15 is used for adjusting and Fixing the carrier 13 in the pressure and splice position Embossing roller 11 (Fig. 2).
  • the other embossing roller 12 is stationary. Furthermore, the Embossing roller 12 assigned a drive 15 ', with whose help not only the embossing roller 12 is forcibly rotatable, but also the embossing roller 11 pressed in the direction of the embossing roller 12 at Splice the material webs 3 and 5.
  • the driven Embossing roller 12 takes the not self-driven when splicing Embossing roller 11 due to frictional engagement.
  • each embossing roller 11, 12 Has holding element 16 for the starting piece of a material web.
  • the holding element 16 is a squeegee or comprises a series of suction openings 16 ', each on Circumference 17 parallel to the axis 18 of each embossing roller 11, 12 are arranged.
  • a suction channel 19 with a Control window at one end of each embossing roller 11, 12 is also an air-conducting connection to a suction and Control channel 20 is provided, which is located in an end next to the Embossing roller arranged, stationary control disc arc-shaped along the path of movement of the suction channel 19 or control window extends.
  • the suction and control channels 20 in the two Control disks are directed towards each other according to FIG. 3 and each extend over approximately 90 degrees and end at the same height approximately on a connecting line 21 between the two axes 18.
  • the two arcuate suction and control channels 20 are on one vacuum line 22 each connected, depending on Operating state none or one or the other embossing roller 11, 12 supplied with negative pressure in the area of the suction openings 16 '.
  • the reel changer 1 further comprises holding and guiding elements 30 and 31, which on the one hand during normal operation and on the other hand when preparing and making a splice connection are effective. They are around an axis 32 and 33 with the help of Drives 34, 35 pivoted and essentially arranged symmetrically to the two embossing rollers 11, 12.
  • Each holding and guiding element 30, 31 has on its circumference at least one deflection element 26 or 36 and according to Embodiment two deflection elements 26, 27 and 36, 37, respectively for the respective material web 3 or 5. Together with the Swivel axes 32, 33 and the deflection elements 26, 27 and 36, 37 each form the holding and guiding elements 31, 32 approximately Triangles.
  • the material web 5 is used for Production of parts.
  • the permanently running material web 5 is guided over the holding and guiding element 31, this is swung up.
  • the material web 5 runs from a stationary arranged deflection element 41 to the deflection elements 26 and 27 on the circumference of the holding and guiding element 31 and then contact-free through the roller nip 40 to further deflecting elements 42 and 43, etc.
  • the operating position of the holding and guiding element 31 with its deflection element 26 in front of the nip 40 and the Position of the deflection element 42 behind the nip 40 are basically chosen in such a way that the normal, operational Passing the material web 5 without contact with the embossing rollers 11 or 12 is done.
  • the embossing roller 11 is during production with the material web 5 to produce the widest possible embossing nip 40 from it Emboss position out (counterclockwise in Fig. 2) and from the embossing roller 12 moves away.
  • the material web 5 therefore runs between the deflection element 26 and the deflection element 42 non-contact through the opened embossing nip 40.
  • the holding and guiding element 30 in preparation for the next one Splicing process with the starting piece 2 of the material web 3 in one horizontal position pivoted (Fig. 2).
  • the new material web 3 becomes Preparation of a splicing process via the deflection elements 38 and 36 pulled and with the help of the holding element 16 or Suction openings 16 'fixed on the embossing roller 11.
  • the Each holding and guiding element 30, 31 has on its circumference at least one deflection element 26 or 36 and according to Embodiment two deflection elements 26, 27 and 36, 37, respectively for the respective material web 3 or 5. Together with the Swivel axes 32, 33 and the deflection elements 26, 27 and 36, 37 each form the holding and guiding elements 31, 32 approximately Triangles.
  • the material web 5 is used for Production of parts.
  • the permanently running material web 5 is guided over the holding and guide element 31 that this is swung up.
  • the material web 5 runs from a stationary arranged deflection element 41 to the deflection elements 26 and 27 on the circumference of the holding and guiding element 31 and then contact-free through the roller nip 40 to further deflecting elements 42 and 43, etc.
  • the operating position of the holding and guiding element 31 with its deflection element 26 in front of the nip 40 and the Position of the deflection element 42 behind the nip 40 are basically chosen in such a way that the normal, operational Passing the material web 5 without contact with the embossing rollers 11 or 12 is done.
  • the embossing roller 11 is during production with the material web 5 to produce the widest possible embossing nip 40 from it Emboss position out (counterclockwise in Fig. 2) and from the embossing roller 12 moves away.
  • the material web 5 therefore runs between the deflection element 26 and the deflection element 42 non-contact through the opened embossing nip 40.
  • the holding and guiding element 30 in preparation for the next one Splicing process with the starting piece 2 of the material web 3 in one horizontal position pivoted (Fig. 2).
  • the new material web 3 With its starting piece 2, the new material web 3 becomes Preparation of a splicing process via the deflection elements 38 and 36 pulled and with the help of the holding element 16 or Suction openings 16 'on the embossing roller 11 are subjected to negative pressure, while the suction air on the embossing roller 12 remains switched off.
  • the embossing roller 11 is then clockwise or in the direction of Arrow 24 rotated about 90 ° until the starting piece 2 is secure is placed in the open embossing nip 40.
  • the embossing roller 11 is moved in the direction with the aid of the drive 15 moved to the embossing roller 12, the starting piece 2 of the Material web 3 is pressed onto the material web 5.
  • the embossing roller 12 with the help of its drive 15 'in the direction of Arrow 25 rotated, the embossing roller 11 in the direction of arrow 24 is rotated and the material webs 3 and 5 are stamped together.
  • the embossing roller 11 becomes the one prevailing at its suction openings 16 ' Negative pressure interrupted and on the holding and guiding element 31 the end piece 4 from the rest 44 of the material web 5 with the help of a Separating element 45 separated.
  • Means 46 for holding the Material web during the cut are next to the Separating element 45 is provided.
  • the embossing roller 11 is removed from the embossing roller 12 so that a wide embossing nip 14 is created between them.
  • the drive 15 ' is stopped.
  • the new material web 3 is now running between the deflection elements 36 and 42 without contact by the Gap 40.
  • the holding and guiding element 31 is then in its horizontal Swiveled back position and clears the way for the Preparation of a new web roll 10, the beginning of the web in the same Way by stamping with the web end of the material web 3 is connected when this path is completed.
  • the deflection elements 36 to 38 can be the same as the others Deflection elements 41 to 43 are each deflection rollers.
  • a basically known tensioning device 47 with a Deflection roller 48 is the material web of the device 6 for the Production fed.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

A roll changer for splicing starting piece and end pieces of material webs to each other in an apparatus for producing hygienic products, includes carriers for web rolls, holding and guiding elements, severing elements and embossing rolls. The starting piece of a new material web can be fixed to an embossing roll. At least one embossing roll can be driven and at least one embossing roll can be moved selectively toward and away from the other embossing roll.

Description

Die Erfindung betrifft einen Rollenwechsler zum Verbinden von Anfangs- und Endstücken von Werkstoffbahnen in einer Vorrichtung zum Herstellen von Hygieneprodukten und umfasst weitere Merkmale gemäss Oberbegriff von Patentanspruch 1.The invention relates to a reel changer for connecting Start and end pieces of material webs in one device for the manufacture of hygiene products and includes other features according to the preamble of claim 1.

Ein Verfahren und eine Vorrichtung der hier interessierenden Art sind aus der EP 0 525 075 B1 grundsätzlich bekannt. So beschreibt diese Druckschrift ein Verfahren und eine Vorrichtung zum Verbinden von mindestens zwei einfach oder mehrfach geschichteten, luftdurchlässige sowie weiche Papierbahnen enthaltenden Werkstoffen. Verbunden werden die Werkstoffbahnen durch Verspleissen im Walzenspalt von zwei Prägewalzen. Gehalten wird das Anfangsstück der anzuschliessenden Werkstoffbahn zunächst mit Hilfe eines Saugkastens, dessen Haltekraft aufgehoben wird, wenn die Bahn an das Endstück der anderen Bahn angeschlossen werden soll.A method and an apparatus of the type of interest here are basically known from EP 0 525 075 B1. This is how it describes it Document a method and an apparatus for connecting at least two single or multiple layers, permeable to air as well as materials containing soft paper webs. Connected are the material webs by splicing in the nip of two embossing rollers. The beginning of the material web to be connected first with the help of a Suction box, the holding force of which is released when the web is on the end piece of the other track is to be connected.

Problematisch ist es bei der bekannten Vorrichtung, dass dort mit einem sehr genau definierten Unterdruck gearbeitet werden muss. Die Unterdrucksteuerung ist daher schwierig. Auch ist nicht unproblematisch, dass das Endstück der einen Bahn das Anfangsstück der anzuschliessenden Bahn mitziehen muss, obwohl beide vor dem Eintritt in den Walzenspalt der Prägewalzen mit Unterdruck auf einen Saugkasten gesaugt werden.It is problematic in the known device that there with a very precisely defined negative pressure must be worked. The Vacuum control is therefore difficult. Is also not unproblematic that the end piece of one track is the beginning piece the train to be connected must pull along, although both before Entry into the nip of the embossing rollers with negative pressure on one Suction box to be sucked.

Der Erfindung liegt daher die Aufgabe zugrunde, die Voraussetzungen für einen möglichst einfachen und raschen Rollenwechsel zu schaffen, der sich mit einem nur geringen Arbeitsaufwand durchführen lässt.The invention is therefore based on the object, the requirements to make changing roles as easy and quick as possible, which can be carried out with only a small amount of work.

Zur Lösung dieser Aufgabe sieht die Erfindung mit den Merkmalen des kennzeichnenden Teiles von Anspruch 1 vor, dass das Anfangsstück einer neuen Werkstoffbahn an einer Prägewalze fixierbar ist und dass mindestens eine Prägewalze antreibbar ist und mindestens eine Prägewalze auf die andere Prägewalze hin und von dieser weg bewegbar ist.To achieve this object, the invention provides with the features of characterizing part of claim 1 that the starting piece a new material web can be fixed to an embossing roller and that at least one embossing roller can be driven and at least one Embossing roller towards and away from the other embossing roller is movable.

Während der Produktion bewegt sich die ablaufende Werkstoffbahn durch den Prägewalzenspalt, ohne eine Prägewalze zu berühren. Beide Prägewalzen sind daher während der Produktion stillgesetzt. Erfindungsgemäss wird das Anfangsstück der anzuschliessenden Werkstoffbahn unmittelbar an einer der beiden stillstehenden Prägewalzen fixiert. Beide Prägewalzen weisen zu diesem Zweck vorzugsweise eine Saugleiste bzw. eine Reihe von Saugöffnungen auf und sind an Unterdruckleitungen anschliessbar.The running material web moves during production through the embossing nip without touching an embossing roller. Both Embossing rollers are therefore shut down during production. According to the invention, the starting piece is the one to be connected Material web directly on one of the two stationary Embossing rollers fixed. Both embossing rollers point for this purpose preferably a suction bar or a row of suction openings and can be connected to vacuum lines.

Zum Verbinden der Werkstoffbahnen werden die beiden Prägewalzen aneinander gedrückt und in Drehung versetzt. Dabei verbinden sich die beiden Werkstoffbahnen durch Druck und Verformung nach Art einer Spleissverbindung, wobei das Endstück der einen Werkstoffbahn nach dem Herstellen der Spleissverbindung noch abgetrennt wird.The two embossing rollers are used to connect the material webs pressed together and set in rotation. The connect two material webs by pressure and deformation like one Splice connection, with the end piece following a material web the disconnection is still disconnected.

Die besagten Maßnahmen lassen sich gut vorbereiten. Der eigentliche Spleissvorgang lässt sich dann sicher und zuverlässig durchführen. Die Folge ist ein schneller Rollenwechsel mit einem kurzfristigen Übergang von dem Ende einer Werkstoffbahn auf den Anfang der nächsten Werkstoffbahn. The measures mentioned can be prepared well. The actual The splicing process can then be carried out safely and reliably. The The result is a quick change of roles with a short-term transition from the end of one material web to the beginning of the next Material web.

Weitere Merkmale der Erfindung gehen aus Unteransprüchen und der Beschreibung im Zusammenhang mit der Zeichnung hervor.Further features of the invention are set out in the dependent claims and Description in connection with the drawing.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles, das in der Zeichnung dargestellt ist, näher beschrieben. Dabei zeigen:

Fig. 1:
eine Prinzipskizze von wesentlichen Teilen des Rollenwechslers und der zu ihm gehörenden Vorrichtung;
Fig. 2:
eine Einzelheit aus Fig. 1 in grösserem Maßstab;
Fig. 3:
eine Stirnansicht der beiden Prägewalzen in nochmals anderem Maßstab und
Fig. 4:
eine Ansicht ähnlich der von Fig. 2 während des Spleissvorganges.
The invention is described below with reference to an embodiment which is shown in the drawing. Show:
Fig. 1:
a schematic diagram of essential parts of the reel changer and the device belonging to it;
Fig. 2:
a detail of Figure 1 on a larger scale.
Fig. 3:
a front view of the two embossing rollers in yet another scale and
Fig. 4:
a view similar to that of Fig. 2 during the splicing process.

Ein Rollenwechsler 1 zum Verbinden eines Anfangsstückes 2 einer Werkstoffbahn 3 mit einem Endstück 4 einer anderen Werkstoffbahn 5 in einer Vorrichtung 6 zum Herstellen von Hygieneprodukten umfasst Träger 7 und 8 für Bahnrollen 9 und 10 sowie Prägewalzen 11 und 12, mit deren Hilfe das Anfangsstück 2 bei einem Durchgang durch einen Walzenspalt 40 zwischen den beiden Prägewalzen 11 und 12 an das Endstück 4 gedrückt wird. Beide Prägewalzen 11, 12 weisen nicht dargestellte Freidreheinrichtungen derart auf, dass die Prägewalze 11 nur in Richtung des Pfeiles 24 und die Prägewalze 12 nur in Richtung des Pfeiles 25 drehbar ist. Durch geeignete Rücklaufsperren ist die Prägewalze 11 somit in Fig. 2 nur im Uhrzeigersinn drehbar und die Prägewalze 12 ist nur entgegen dem Uhrzeigersinn drehbar.A reel changer 1 for connecting an initial piece 2 one Material web 3 with an end piece 4 of another material web 5 in a device 6 for the production of hygiene products Carriers 7 and 8 for web rolls 9 and 10 and embossing rollers 11 and 12, with the help of the starting piece 2 in a passage through a Roller gap 40 between the two embossing rollers 11 and 12 on the End piece 4 is pressed. Both embossing rollers 11, 12 do not have Free turning devices shown such that the embossing roller 11 only in the direction of arrow 24 and the embossing roller 12 only in the direction the arrow 25 is rotatable. With suitable backstops, the Embossing roller 11 can thus only be rotated clockwise in FIG. 2 and the Embossing roller 12 can only be rotated counterclockwise.

Die eine Prägewalze 11 ist auf die andere Prägewalze 12 hin und von dieser weg bewegbar. Dazu ist die Prägewalze 11 auf einem Träger 13 gelagert und zusammen mit dem Träger 13 um eine Achse 14 schwenkbar. Ein steuerbarer Antrieb 15 dient zum Verstellen und zum Fixieren des Trägers 13 in der Andruck- und Spleissposition der Prägewalze 11 (Fig. 2). The one embossing roller 11 is towards and from the other embossing roller 12 this movable away. For this purpose, the embossing roller 11 is on a carrier 13 stored and together with the carrier 13 about an axis 14 swiveling. A controllable drive 15 is used for adjusting and Fixing the carrier 13 in the pressure and splice position Embossing roller 11 (Fig. 2).

Die andere Prägewalze 12 ist stationär gelagert. Ferner ist der Prägewalze 12 ein Antrieb 15' zugeordnet, mit dessen Hilfe nicht nur die Prägewalze 12 zwangsweise in Drehung versetzbar ist, sondern auch die in Richtung Prägewalze 12 gedrückte Prägewalze 11 beim Verspleissen der Werkstoffbahnen 3 und 5. Die angetriebene Prägewalze 12 nimmt beim Verspleissen die nicht selbst angetriebene Prägewalze 11 aufgrund von Reibschluss mit.The other embossing roller 12 is stationary. Furthermore, the Embossing roller 12 assigned a drive 15 ', with whose help not only the embossing roller 12 is forcibly rotatable, but also the embossing roller 11 pressed in the direction of the embossing roller 12 at Splice the material webs 3 and 5. The driven Embossing roller 12 takes the not self-driven when splicing Embossing roller 11 due to frictional engagement.

Die beiden Prägewalzen 11 und 12 sind in Fig. 3 in grösserem Maßstab dargestellt und lassen erkennen, dass jede Prägewalze 11, 12 ein Halteelement 16 für das Anfangsstück einer Werkstoffbahn aufweist. Gemäss Ausführungsbeispiel ist das Halteelement 16 eine Saugleiste bzw. umfasst eine Reihe von Saugöffnungen 16', die jeweils am Umfang 17 parallel zur Achse 18 einer jeden Prägewalze 11, 12 angeordnet sind. Über jeweils einen Saugkanal 19 mit einem Steuerfenster am einen stirnseitigen Ende einer jeden Prägewalze 11, 12 ist ferner eine luftleitende Verbindung zu einem Saug- und Steuerkanal 20 vorgesehen, der sich in einer stirnseitig neben der Prägewalze angeordneten, still stehenden Steuerscheibe bogenförmig längs der Bewegungsbahn des Saugkanals 19 bzw. Steuerfensters erstreckt. Die Saug- und Steuerkanäle 20 in den beiden Steuerscheiben sind gemäss Fig. 3 aufeinanderzu gerichtet und erstrecken sich jeweils über etwa 90 Grad und enden auf gleicher Höhe etwa an einer Verbindungslinie 21 zwischen den beiden Achsen 18.The two embossing rollers 11 and 12 are on a larger scale in FIG. 3 shown and show that each embossing roller 11, 12 Has holding element 16 for the starting piece of a material web. According to the embodiment, the holding element 16 is a squeegee or comprises a series of suction openings 16 ', each on Circumference 17 parallel to the axis 18 of each embossing roller 11, 12 are arranged. Via a suction channel 19 with a Control window at one end of each embossing roller 11, 12 is also an air-conducting connection to a suction and Control channel 20 is provided, which is located in an end next to the Embossing roller arranged, stationary control disc arc-shaped along the path of movement of the suction channel 19 or control window extends. The suction and control channels 20 in the two Control disks are directed towards each other according to FIG. 3 and each extend over approximately 90 degrees and end at the same height approximately on a connecting line 21 between the two axes 18.

Ferner sind die beiden bogenförmigen Saug- und Steuerkanäle 20 an jeweils eine Unterdruckleitung 22 angeschlossen, die je nach Betriebszustand keine bzw. die eine oder die andere Prägewalze 11, 12 im Bereich der Saugöffnungen 16' mit Unterdruck versorgt.Furthermore, the two arcuate suction and control channels 20 are on one vacuum line 22 each connected, depending on Operating state none or one or the other embossing roller 11, 12 supplied with negative pressure in the area of the suction openings 16 '.

Der Rollenwechsler 1 umfasst ferner Halte- und Führungselemente 30 und 31, die einerseits während des normalen Betriebes und andererseits beim Vorbereiten und Herstellen einer Spleissverbindung wirksam sind. Sie sind um jeweils eine Achse 32 bzw. 33 mit Hilfe von Antrieben 34, 35 schwenkbar gelagert und im wesentlichen symmetrisch zu den beiden Prägewalzen 11, 12 angeordnet. The reel changer 1 further comprises holding and guiding elements 30 and 31, which on the one hand during normal operation and on the other hand when preparing and making a splice connection are effective. They are around an axis 32 and 33 with the help of Drives 34, 35 pivoted and essentially arranged symmetrically to the two embossing rollers 11, 12.

An ihrem Umfang weist jedes Halte- und Führungselement 30, 31 mindestens ein Umlenkelement 26 bzw. 36 und gemäss Ausführungsbeispiel jeweils zwei Umlenkelemente 26, 27 bzw. 36, 37 für die jeweilige Werkstoffbahn 3 bzw. 5 auf. Zusammen mit den Schwenkachsen 32, 33 und den Umlenkelementen 26, 27 bzw. 36, 37 bilden die Halte- und Führungselemente 31, 32 jeweils annähernd Dreiecke.Each holding and guiding element 30, 31 has on its circumference at least one deflection element 26 or 36 and according to Embodiment two deflection elements 26, 27 and 36, 37, respectively for the respective material web 3 or 5. Together with the Swivel axes 32, 33 and the deflection elements 26, 27 and 36, 37 each form the holding and guiding elements 31, 32 approximately Triangles.

Gemäss der Darstellung in Fig. 2 dient die Werkstoffbahn 5 zur Produktion von Teilen. Die permanent ablaufende Werkstoffbahn 5 wird dabei über das Halte- und Führungselement 31 geführt, das hierbei hoch geschwenkt ist. Die Werkstoffbahn 5 läuft von einem stationär angeordneten Umlenkelement 41 zu den Umlenkelementen 26 und 27 am Umfang des Halte- und Führungselementes 31 und sodann kontaktfrei durch den Walzenspalt 40 zu weiteren Umlenkelementen 42 und 43 usw.. Die Betriebsstellung des Halte- und Führungselementes 31 mit seinem Umlenkelement 26 vor dem Walzenspalt 40 und die Lage des Umlenkelementes 42 hinter dem Walzenspalt 40 sind grundsätzlich derart gewählt, dass der normale, betiebsmässige Durchlauf der Werkstoffbahn 5 ohne Kontakt mit den Prägewalzen 11 oder 12 erfolgt.2, the material web 5 is used for Production of parts. The permanently running material web 5 is guided over the holding and guiding element 31, this is swung up. The material web 5 runs from a stationary arranged deflection element 41 to the deflection elements 26 and 27 on the circumference of the holding and guiding element 31 and then contact-free through the roller nip 40 to further deflecting elements 42 and 43, etc. The operating position of the holding and guiding element 31 with its deflection element 26 in front of the nip 40 and the Position of the deflection element 42 behind the nip 40 are basically chosen in such a way that the normal, operational Passing the material web 5 without contact with the embossing rollers 11 or 12 is done.

Während der Produktion mit der Werkstoffbahn 5 ist die Prägewalze 11 zur Erzeugung eines möglichst breiten Prägewalzenspaltes 40 aus ihrer Prägeposition heraus (entgegen dem Uhrzeigersinn in Fig. 2) sowie von der Prägewalze 12 weg bewegt. Die Werkstoffbahn 5 läuft daher zwischen dem Umlenkelement 26 und dem Umlenkelement 42 berührungsfrei durch den geöffneten Prägewalzenspalt 40. Gleichzeitig ist das Halte- und Führungselement 30 zur Vorbereitung des nächsten Spleissvorganges mit dem Anfangsstück 2 der Werkstoffbahn 3 in eine horizontale Position geschwenkt (Fig. 2).The embossing roller 11 is during production with the material web 5 to produce the widest possible embossing nip 40 from it Emboss position out (counterclockwise in Fig. 2) and from the embossing roller 12 moves away. The material web 5 therefore runs between the deflection element 26 and the deflection element 42 non-contact through the opened embossing nip 40. At the same time is the holding and guiding element 30 in preparation for the next one Splicing process with the starting piece 2 of the material web 3 in one horizontal position pivoted (Fig. 2).

Die neue Werkstoffbahn 3 wird mit ihrem Anfangsstück 2 zur Vorbereitung eines Spleissvorganges über die Umlenkelemente 38 und 36 gezogen und mit Hilfe des Halteelementes 16 bzw. der Saugöffnungen 16' an der Prägewalze 11 fixiert. Dazu werden die An ihrem Umfang weist jedes Halte- und Führungselement 30, 31 mindestens ein Umlenkelement 26 bzw. 36 und gemäss Ausführungsbeispiel jeweils zwei Umlenkelemente 26, 27 bzw. 36, 37 für die jeweilige Werkstoffbahn 3 bzw. 5 auf. Zusammen mit den Schwenkachsen 32, 33 und den Umlenkelementen 26, 27 bzw. 36, 37 bilden die Halte- und Führungselemente 31, 32 jeweils annähernd Dreiecke.With its starting piece 2, the new material web 3 becomes Preparation of a splicing process via the deflection elements 38 and 36 pulled and with the help of the holding element 16 or Suction openings 16 'fixed on the embossing roller 11. To do this, the Each holding and guiding element 30, 31 has on its circumference at least one deflection element 26 or 36 and according to Embodiment two deflection elements 26, 27 and 36, 37, respectively for the respective material web 3 or 5. Together with the Swivel axes 32, 33 and the deflection elements 26, 27 and 36, 37 each form the holding and guiding elements 31, 32 approximately Triangles.

Gemäss der Darstellung in Fig. 2 dient die Werkstoffbahn 5 zur Produktion von Teilen. Die permanent ablaufende Werkstoffbahn 5 wird dabei über das Halte- und Führungselement 31 geführt, dass hierbei hoch geschwenkt ist. Die Werkstoffbahn 5 läuft von einem stationär angeordneten Umlenkelement 41 zu den Umlenkelementen 26 und 27 am Umfang des Halte- und Führungselementes 31 und sodann kontaktfrei durch den Walzenspalt 40 zu weiteren Umlenkelementen 42 und 43 usw.. Die Betriebsstellung des Halte- und Führungselementes 31 mit seinem Umlenkelement 26 vor dem Walzenspalt 40 und die Lage des Umlenkelementes 42 hinter dem Walzenspalt 40 sind grundsätzlich derart gewählt, dass der normale, betiebsmässige Durchlauf der Werkstoffbahn 5 ohne Kontakt mit den Prägewalzen 11 oder 12 erfolgt.2, the material web 5 is used for Production of parts. The permanently running material web 5 is guided over the holding and guide element 31 that this is swung up. The material web 5 runs from a stationary arranged deflection element 41 to the deflection elements 26 and 27 on the circumference of the holding and guiding element 31 and then contact-free through the roller nip 40 to further deflecting elements 42 and 43, etc. The operating position of the holding and guiding element 31 with its deflection element 26 in front of the nip 40 and the Position of the deflection element 42 behind the nip 40 are basically chosen in such a way that the normal, operational Passing the material web 5 without contact with the embossing rollers 11 or 12 is done.

Während der Produktion mit der Werkstoffbahn 5 ist die Prägewalze 11 zur Erzeugung eines möglichst breiten Prägewalzenspaltes 40 aus ihrer Prägeposition heraus (entgegen dem Uhrzeigersinn in Fig. 2) sowie von der Prägewalze 12 weg bewegt. Die Werkstoffbahn 5 läuft daher zwischen dem Umlenkelement 26 und dem Umlenkelement 42 berührungsfrei durch den geöffneten Prägewalzenspalt 40. Gleichzeitig ist das Halte- und Führungselement 30 zur Vorbereitung des nächsten Spleissvorganges mit dem Anfangsstück 2 der Werkstoffbahn 3 in eine horizontale Position geschwenkt (Fig. 2).The embossing roller 11 is during production with the material web 5 to produce the widest possible embossing nip 40 from it Emboss position out (counterclockwise in Fig. 2) and from the embossing roller 12 moves away. The material web 5 therefore runs between the deflection element 26 and the deflection element 42 non-contact through the opened embossing nip 40. At the same time is the holding and guiding element 30 in preparation for the next one Splicing process with the starting piece 2 of the material web 3 in one horizontal position pivoted (Fig. 2).

Die neue Werkstoffbahn 3 wird mit ihrem Anfangsstück 2 zur Vorbereitung eines Spleissvorganges über die Umlenkelemente 38 und 36 gezogen und mit Hilfe des Halteelementes 16 bzw. der Saugöffnungen 16' an der Prägewalze 11 mit Unterdruck beaufschlagt, während die Saugluft an der Prägewalze 12 abgeschaltet bleibt.With its starting piece 2, the new material web 3 becomes Preparation of a splicing process via the deflection elements 38 and 36 pulled and with the help of the holding element 16 or Suction openings 16 'on the embossing roller 11 are subjected to negative pressure, while the suction air on the embossing roller 12 remains switched off.

Die Prägewalze 11 wird sodann im Uhrzeigersinn bzw. in Richtung des Pfeiles 24 um etwa 90 ° weitergedreht, bis das Anfangsstück 2 sicher im geöffneten Prägewalzenspalt 40 plaziert ist.The embossing roller 11 is then clockwise or in the direction of Arrow 24 rotated about 90 ° until the starting piece 2 is secure is placed in the open embossing nip 40.

Sodann wird das Halte- und Führungselement 30 mit Hilfe des Antriebes 34 in eine Abrollposition hoch geschwenkt (Fig. 2). Durch den in der Prägewalze 11 integrierten Freilauf wird dabei ein Zurückdrehen der Prägewalze 11 verhindert. Die Werkstoffbahn 3 wird gleichzeitig von der Bahnrolle 9 nachgezogen.Then the holding and guiding element 30 with the help of Drive 34 pivoted up into a rolling position (Fig. 2). By the freewheel integrated in the embossing roller 11 becomes a Preventing the embossing roller 11 from turning back. The material web 3 is pulled from the web roll 9 at the same time.

Sodann wird die Prägewalze 11 mit Hilfe des Antriebes 15 in Richtung auf die Prägewalze 12 bewegt, wobei das Anfangsstück 2 der Werkstoffbahn 3 an die Werkstoffbahn 5 angepresst wird. Gleichzeitig wird die Prägewalze 12 mit Hilfe ihres Antriebes 15' in Richtung des Pfeiles 25 in Drehung versetzt, wobei die Prägewalze 11 in Richtung des Pfeiles 24 mitgedreht wird und die Werkstoffbahnen 3 und 5 miteinander verprägt werden. Unmittelbar nach Beginn der Drehung der Prägewalze 11 wird der an ihren Saugöffnungen 16' herrschende Unterdruck unterbrochen und an dem Halte- und Führungselement 31 wird das Endstück 4 vom Rest 44 der Werkstoffbahn 5 mit Hilfe eines Trennelementes 45 abgetrennt. Auch Einrichtungen 46 zum Halten der Werkstoffbahn während des Trennschnittes sind neben dem Trennelement 45 vorgesehen.Then the embossing roller 11 is moved in the direction with the aid of the drive 15 moved to the embossing roller 12, the starting piece 2 of the Material web 3 is pressed onto the material web 5. At the same time is the embossing roller 12 with the help of its drive 15 'in the direction of Arrow 25 rotated, the embossing roller 11 in the direction of arrow 24 is rotated and the material webs 3 and 5 are stamped together. Immediately after the start of the rotation the embossing roller 11 becomes the one prevailing at its suction openings 16 ' Negative pressure interrupted and on the holding and guiding element 31 the end piece 4 from the rest 44 of the material web 5 with the help of a Separating element 45 separated. Means 46 for holding the Material web during the cut are next to the Separating element 45 is provided.

Sobald das Endstück 4 mit der neuen Werkstoffbahn 3 verprägt ist, wird die Prägewalze 11 wieder von der Prägewalze 12 entfernt, so dass ein breiter Prägewalzenspalt 14 zwischen ihnen entsteht. Gleichzeitig wird der Antrieb 15' stillgesetzt. Die neue Werkstoffbahn 3 läuft nun zwischen den Umlenkelementen 36 und 42 berührungsfrei durch den Spalt 40.As soon as the end piece 4 is stamped with the new material web 3, the embossing roller 11 is removed from the embossing roller 12 so that a wide embossing nip 14 is created between them. At the same time the drive 15 'is stopped. The new material web 3 is now running between the deflection elements 36 and 42 without contact by the Gap 40.

Das Halte- und Führungselement 31 wird danach in seine horizontale Position zurückgeschwenkt und macht so den Weg frei für die Vorbereitung einer neuen Bahnrolle 10, deren Bahnanfang in gleicher Weise durch Verprägen mit dem Bahnende der Werkstoffbahn 3 verbunden wird, wenn diese Bahn abgearbeitet ist.The holding and guiding element 31 is then in its horizontal Swiveled back position and clears the way for the Preparation of a new web roll 10, the beginning of the web in the same Way by stamping with the web end of the material web 3 is connected when this path is completed.

Entsprechend den unterschiedlichen Anforderungen befinden sich die beiden Halte- und Führungselemente 30 bzw. 31 in unterschiedlichen Positionen und sind - bezogen auf die durch den Prägewalzenspalt 40 definierte Ebene- aufeinanderzu und voneinanderweg bewegbar. Während des Betriebes steht das eine Halte- und Führungselement 31 im wesentlichen senkrecht, während das andere Halte- und Führungselement in eine annähernd horizontale Position geschwenkt ist.They are located according to the different requirements two holding and guiding elements 30 and 31 in different Positions and are - based on that through the embossing nip 40 defined level - movable towards and away from each other. During operation, there is a holding and guiding element 31 essentially vertical, while the other holding and Guide element pivoted into an approximately horizontal position is.

Die Umlenkelemente 36 bis 38 können ebenso wie die anderen Umlenkelemente 41 bis 43 jeweils Umlenkrollen sein.The deflection elements 36 to 38 can be the same as the others Deflection elements 41 to 43 are each deflection rollers.

Über eine grundsätzlich bekannte Spanneinrichtung 47 mit einer Umlenkrolle 48 wird die Werkstoffbahn der Vorrichtung 6 für die Produktion zugeführt.Via a basically known tensioning device 47 with a Deflection roller 48 is the material web of the device 6 for the Production fed.

Claims (16)

Rollenwechsler zum Verbinden von Anfangsstücken (2) und Endsstücken (4) von Werkstoffbahnen (3, 5) aneinander in einer Vorrichtung (6) zum Herstellen von Hygieneprodukten, wobei Träger (7, 8) für Bahnrollen (9, 10), ferner Halte- und Führungselemente (30, 31), Trennelemente (45) und Prägewalzen (11, 12) vorgesehen sind, dadurch gekennzeichnet, dass das Anfangsstück (2) einer neuen Werkstoffbahn (3) an einer Prägewalze (11 bzw. 12) fixierbar ist und
dass mindestens eine Prägewalze (12) antreibbar ist und mindestens eine Prägewalze (11) auf die andere Prägewalze (12) hin und von dieser weg bewegbar ist.Reel changer for connecting start pieces (2) and end pieces (4) of material webs (3, 5) to one another in a device (6) for producing hygiene products, wherein supports (7, 8) for web reels (9, 10), furthermore holding devices and guide elements (30, 31), separating elements (45) and embossing rollers (11, 12) are provided, characterized in that the starting piece (2) of a new material web (3) can be fixed to an embossing roller (11 or 12) and
that at least one embossing roller (12) can be driven and at least one embossing roller (11) can be moved toward and away from the other embossing roller (12). Rollenwechsler nach Anspruch 1, dadurch gekennzeichnet, dass zwei bewegbar gelagerte Halte- Führungselemente (30, 31) in Laufrichtung der Werkstoffbahnen (3, 5) vor den Prägewalzen (11, 12) angeordnet sind.Roll changer according to claim 1, characterized in that two movably mounted holding guide elements (30, 31) are arranged in front of the embossing rollers (11, 12) in the running direction of the material webs (3, 5). Rollenwechsler nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die beiden Halte - und Führungselemente (30, 31) symmetrisch zu den beiden Prägewalzen (11, 12) angeordnet sind.Roll changer according to claim 1 and 2, characterized in that the two holding and guiding elements (30, 31) are arranged symmetrically to the two embossing rollers (11, 12). Rollenwechsler nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die beiden Halte- und Führungselemente (30, 31) um Achsen (32, 33) schwenkbar sind. Reel changer according to claim 1 and 2, characterized in that the two holding and guiding elements (30, 31) are pivotable about axes (32, 33). Rollenwechsler nach Anspruch 1 und 2, dadurch gekennzeichnet, dass jedes Halte- und Führungselement (30, 31) an seinem Umfang mindestens ein Umlenkelement (36, 37) aufweist.Reel changer according to claim 1 and 2, characterized in that each holding and guiding element (30, 31) has at least one deflection element (36, 37) on its circumference. Rollenwechsler nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass jedes Halte- und Führungselement (30, 31) zwei Umlenkelemente (26, 27 bzw. 36, 37) aufweist, die zusammen mit einer Schwenkachse (32, 33) des Halte- und Führungselementes (30, 31) ein Dreieck bilden.Reel changer according to claims 1 to 5, characterized in that each holding and guiding element (30, 31) has two deflecting elements (26, 27 or 36, 37) which together with a pivot axis (32, 33) of the holding and guiding element (30, 31) form a triangle. Rollenwechsler nach Anspruch 1 und 5, dadurch gekennzeichnet, dass jeweils ein Trennelement (45) zwischen den beiden Umlenkelementen (26, 27 bzw. 36, 37) angeordnet ist.Roll changer according to claim 1 and 5, characterized in that in each case a separating element (45) is arranged between the two deflecting elements (26, 27 and 36, 37). Rollenwechsler nach Anspruch 1 und 5, dadurch gekennzeichnet, dass das Umlenkelement (36, 37) eine Umlenkrolle ist.Reel changer according to claim 1 and 5, characterized in that the deflecting element (36, 37) is a deflecting roller. Rollenwechsler nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Halte- und Führungselemente (30, 31) - bezogen auf eine durch den Walzenspalt (40) definierte Ebeneaufeinanderzu und voneinanderweg bewegbar sind.Reel changer according to claims 1 to 4, characterized in that the holding and guiding elements (30, 31) can be moved towards and away from one another in relation to a plane defined by the roller gap (40). Rollenwechsler nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Halte- und Führungselemente (30, 31) je eine Führungsfläche (39) aufweisen und in eine Position bewegbar sind, in der die Führungsfläche (39) in einer Ebene tangential zu den beiden Prägewalzen (11, 12) liegt.Reel changer according to claim 1 and 2, characterized in that the holding and guiding elements (30, 31) each have a guiding surface (39) and can be moved into a position in which the guiding surface (39) is tangential to the two embossing rollers in one plane (11, 12) lies. Rollenwechsler nach Anspruch 1 und 2 sowie 9, dadurch gekennzeichnet, dass das Halte- und Führungselement (30, 31) im Betrieb die Werkstoffbahn (3, 5) kontaktfrei durch den Prägewalzenspalt (40) führt.Reel changer according to claim 1 and 2 and 9, characterized in that the holding and guiding element (30, 31) guides the material web (3, 5) through the embossing roller gap (40) without contact during operation. Rollenwechsler nach Anspruch 1 und 11, dadurch gekennzeichnet, dass ein Umlenkelement (42) den beiden Prägewalzen (11, 12) derart zugeordnet ist und dass die Halte- und Führungselemente (30, 31) derart bewegbar und fixierbar sind, dass eine abrollende Werkstoffbahn (5) keine der beiden Prägewalzen (11, 12) berührt.Roll changer according to claims 1 and 11, characterized in that a deflection element (42) is assigned to the two embossing rollers (11, 12) in such a way and that the holding and guiding elements (30, 31) are movable and fixable in such a way that a rolling material web ( 5) none of the two embossing rollers (11, 12) touches. Rollenwechsler nach Anspruch 1, dadurch gekennzeichnet, dass jede Prägewalze (11, 12) ein Halteelement (16) für das Anfangsstück (2) einer Werkstoffbahn (3) aufweist.Roll changer according to claim 1, characterized in that each embossing roller (11, 12) has a holding element (16) for the starting piece (2) of a material web (3). Rollenwechsler nach Anspruch 1 und 13, dadurch gekennzeichnet, dass als Halteelement (16) mindestens eine Saugleiste bzw. eine Reihe von Saugöffnungen (16') vorgesehen ist und an eine Unterdruckleitung (22) anschliessbar ist.Roll changer according to claims 1 and 13, characterized in that at least one suction bar or a row of suction openings (16 ') is provided as the holding element (16) and can be connected to a vacuum line (22). Rollenwechsler nach Anspruch 1 und 10, dadurch gekennzeichnet, dass sich die Führungsfläche (39) des Halte- und Führungselementes (30, 31) beim Fixieren der neuen Werkstoffbahn (3, 5) an der Prägewalze (11, 12) in einer horizontalen Position befindet.Roll changer according to claims 1 and 10, characterized in that the guide surface (39) of the holding and guiding element (30, 31) is in a horizontal position when the new material web (3, 5) is fixed to the embossing roller (11, 12) . Rollenwechsler nach Anspruch 1, dadurch gekennzeichnet, dass das Halte- und Führungselement (30, 31) eine Einrichtung (46) zum Halten der Werkstoffbahn (3, 5) während eines Trennschnittes aufweist.Roll changer according to claim 1, characterized in that the holding and guiding element (30, 31) has a device (46) for holding the material web (3, 5) during a separating cut.
EP01103423A 2000-03-11 2001-02-14 Roll changer for a device for manufacturing hygiène products Expired - Lifetime EP1136408B1 (en)

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DE10012000 2000-03-11
DE10012000A DE10012000A1 (en) 2000-03-11 2000-03-11 Reel changer for a device for manufacturing hygiene products

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EP1136408B1 (en) 2006-05-17
DE10012000A1 (en) 2001-09-13
ES2263519T3 (en) 2006-12-16
EP1136408A3 (en) 2003-03-12
US6578616B2 (en) 2003-06-17
DE50109781D1 (en) 2006-06-22
ATE326414T1 (en) 2006-06-15
US20010020664A1 (en) 2001-09-13

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