EP1584427B1 - Transport roller and transverse cutting device for material webs - Google Patents

Transport roller and transverse cutting device for material webs Download PDF

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Publication number
EP1584427B1
EP1584427B1 EP20050006155 EP05006155A EP1584427B1 EP 1584427 B1 EP1584427 B1 EP 1584427B1 EP 20050006155 EP20050006155 EP 20050006155 EP 05006155 A EP05006155 A EP 05006155A EP 1584427 B1 EP1584427 B1 EP 1584427B1
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EP
European Patent Office
Prior art keywords
transport roller
knife
roller according
groove
drive
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.)
Not-in-force
Application number
EP20050006155
Other languages
German (de)
French (fr)
Other versions
EP1584427A1 (en
Inventor
Jochen Dr. Hennes
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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Publication date
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Publication of EP1584427A1 publication Critical patent/EP1584427A1/en
Application granted granted Critical
Publication of EP1584427B1 publication Critical patent/EP1584427B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/045—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/10—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • B26D1/105—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B65H35/0086—Arrangements or adaptations of cutting devices using movable cutting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B65H2301/51512—Cutting handled material transversally to feeding direction using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the handled material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/485—Cutter with timed stroke relative to moving work
    • Y10T83/49—Traveling cutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6668—Interrelated work-feeding means and tool-moving means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7755—Carrier for rotatable tool movable during cutting
    • Y10T83/7763—Tool carrier reciprocable rectilinearly
    • Y10T83/7776—With means to reciprocate carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8822—Edge-to-edge of sheet or web [e.g., traveling cutter]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8878—Guide

Definitions

  • the invention relates to a transport roller for material webs with an outside of the transport roller provided cutting device for the web.
  • a deflecting roller is provided for performing a cutting operation, which takes place outside the transport roller, which lifts the material web from the transport roller, so that the movable from a roll edge to the opposite edge of the roll knife does not damage the transport roller.
  • the object of the invention is to prevent lifting of the material web from the transport roller during the cutting process and thus to improve the winding quality considerably.
  • the groove extends from one side edge of the transport roller to the opposite edge. This results in a particularly simple embodiment, which also allows easy control of the blade movement.
  • the angle which includes the groove with the axis-parallel generatrix be constant or variable over the length of the groove.
  • the drive of the knife comprises an electric actuator, which is coupled via a control device with an actuator of the transport roller drive.
  • a particularly simple embodiment consists in that the drive of the knife through the groove edge takes place in the manner of a movement thread and that at the beginning of the groove, a safety device for the knife is provided.
  • the knife From a certain pitch angle of the groove relative to the axis-parallel generatrix the knife is moved in the groove by the rotational movement of the roller, without the need for a special drive.
  • the knife only has to be brought into the region of the device for the intended cutting operation in order to be able to insert the knife into the groove.
  • the transport roller has two intersecting grooves and that two in opposite directions movable blades are arranged.
  • the point of intersection of the two grooves may have equal distances to the edges of the transport roller or unequal distances.
  • At least two sections of the intersecting grooves can extend up to one side edge of the transport roller. This means that the knives are taken out of the grooves after passing through the crossing point. But it is also possible that all sections of the intersecting grooves extend to the side edges, resulting in a continuous cutting movement of the respective knife from one side edge to the opposite side edge.
  • the grooves can run at equal angles to the axis-parallel generatrix or at different angles to this generatrix, depending on which patterns are desired.
  • the blades are guided independently of each other in a further embodiment of the invention, it is possible that they are driven in an advantageous manner at the same speeds or at different speeds. Different speeds will be chosen if the cut of the two knives should be finished at the same time, so that the blade starting later will be driven faster. However, the controller must always ensure that the knives go through the crossover point at different times.
  • the object stated at the outset can also be achieved starting from a transport roller of the type specified at the outset in that the cutting device moves toward and away from the material web substantially perpendicular to the material web Having knife in the manner of a chopping device, which dips when simultaneously cutting the entire web width in a provided in the transport roller groove.
  • a winding shaft 2 is rotatably mounted on a support arm 1, on which a winding 6 of a material web 3 is wound.
  • the material web 3 passes over a transport roller 4, which is in constant contact with the winding 6.
  • a knife holder 10 For severing the material web 3, when the winding 6 has reached its intended size, a knife holder 10 is provided with a knife 5, which, as from the Figures 2 . 4 and 6 seen in a groove 7 is guided.
  • the groove 7 extends from an edge 9 to the opposite edge at an angle to an axis-parallel surface line. 8
  • the knife 5 with its knife holder 10 must be synchronized in its displacement movement from the edge 9 to the opposite edge of the transport roller 4 with the peripheral speed of the transport roller 4, that is, the blade movement is controlled in dependence on the peripheral speed of the transport roller 4.
  • FIG. 2 an embodiment of a transport roller is shown, over which the knife holder 10 is guided on a spindle 11 which is rotated by an electric spindle drive 12 in rotation.
  • the knife holder 10 is, so to speak, a movable nut on the spindle 11.
  • 16 denotes an electric drive for the transport roller 4 and the two drives 12 and 16 are synchronized via a controller 13 in such a way that the knife holder 10 and thus the knife. 5 is controlled in the groove 7 in response to the peripheral speed of the transport roller 4 in its movement.
  • FIG. 4 is the coupling between the knife drive and the transport roller drive a transmission in the form of a belt drive 14, which transmits the rotational movement of the transport roller 4 on the spindle 11, wherein the diameter ratio of the two pulleys 17 and 18 is selected so that the knife 5 in the groove is moved from the edge 9 to the opposite edge of the transport roller 4, when the transport roller 4 by the angular range, the two ends of the groove 7 include, has rotated.
  • the knife 5 is guided by an edge of the groove 7, wherein a safety device 15 is provided, which allows the insertion of the knife 5 in the groove 7.

Description

Die Erfindung bezieht sich auf eine Transportwalze für Materialbahnen mit einer außerhalb der Transportwalze vorgesehenen Schneidvorrichtung für die Materialbahn.The invention relates to a transport roller for material webs with an outside of the transport roller provided cutting device for the web.

Bei einer bekannten Transportwalze dieser Art ist zur Durchführung eines Schneidvorganges, der außerhalb der Transportwalze stattfindet, eine Umlenkwalze vorgesehen, die die Materialbahn von der Transportwalze abhebt, damit das von einem Walzenrand zum gegenüber liegenden Walzenrand bewegbare Messer nicht die Transportwalze beschädigt. Durch das Abheben der Materialbahn von der Transportwalze mittels einer Umlenkwalze kann es zu Spannungsschwankungen in der Materialbahn kommen, wodurch das Wickelergebnis nachteilig beeinflusst wird. Weiterhin kann hierbei durch das Abheben die Materialbahn seitlich verlaufen, was ebenfalls die Wickelqualität erheblich nachteilig beeinflusst. Ein Umschlagen der Materialbahn nach dem Schneiden kann ebenfalls nicht immer gewährleistet werden.In a known transport roller of this type, a deflecting roller is provided for performing a cutting operation, which takes place outside the transport roller, which lifts the material web from the transport roller, so that the movable from a roll edge to the opposite edge of the roll knife does not damage the transport roller. By lifting the material web from the transport roller by means of a guide roller, there may be voltage fluctuations in the material web, whereby the winding result is adversely affected. Furthermore, in this case can extend laterally by lifting the web, which also affects the winding quality significantly adversely. Turning the material web after cutting can not always be guaranteed.

Bei einer aus US 6 003 421 bekannten Transportwalze sind die Merkmale des Oberbegriffs des Anspruchs 1 offenbart.At one off US 6,003,421 known transport roller, the features of the preamble of claim 1 are disclosed.

Aufgabe der Erfindung ist es, ein Abheben der Materialbahn von der Transportwalze während des Schneidvorganges zu vermeiden und damit die Wickelqualität erheblich zu verbessern.The object of the invention is to prevent lifting of the material web from the transport roller during the cutting process and thus to improve the winding quality considerably.

Die Aufgabe wird bei einer Transportwalze gemäß dem Anspruch 1 gelöst.The object is achieved with a transport roller according to claim 1.

Aufgrund dieser Ausgestaltung muss zum Schneiden der Materialbahn diese nicht mehr von der Transportwalze abgehoben werden, wodurch die eingangs erläuterten Nachteile vermieden und die Wickelqualität erheblich verbessert wird. Ein Abheben von der Transportwalze konnte bisher bei einer alternativen Transportwalze gemäß US 6 003 421 oder bei im Inneren der Transportwalze angeordneten Schneidvorrichtungen vermieden werden, deren Anordnung aber einen wesentlich höheren technischen Aufwand erfordert.Due to this configuration, it is no longer necessary to lift it off the transport roller for cutting the material web, which avoids the disadvantages explained in the introduction and significantly improves the winding quality. A lifting of the transport roller could so far in an alternative transport roller according to US 6,003,421 or when arranged in the interior of the transport roller cutting devices are avoided, but their arrangement requires a much higher technical effort.

Es ist vorgesehen, dass bei Verwendung eines einzigen Messers, die Nut von einem Seitenrand der Transportwalze zum gegenüber liegenden Rand verläuft. Hierdurch ergibt sich eine besonders einfache Ausgestaltung, die auch eine einfache Steuerung der Messerbewegung ermöglicht.It is envisaged that when using a single knife, the groove extends from one side edge of the transport roller to the opposite edge. This results in a particularly simple embodiment, which also allows easy control of the blade movement.

Dabei kann der Winkel, den die Nut mit der achsparallelen Mantellinie einschließt, konstant oder über die Länge der Nut veränderlich sein.In this case, the angle which includes the groove with the axis-parallel generatrix, be constant or variable over the length of the groove.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kann zum Antrieb des Messers dieses über ein Getriebe mit dem Transportwalzenantrieb gekoppelt sein.According to a further advantageous embodiment of the invention may be coupled to drive the knife this via a gear with the transport roller drive.

Anstelle dieser mechanischen Kopplung kann auch vorgesehen sein, dass der Antrieb des Messers ein elektrisches Stellglied umfasst, das über eine Regeleinrichtung mit einem Stellglied des Transportwalzenantriebes gekoppelt ist.Instead of this mechanical coupling can also be provided that the drive of the knife comprises an electric actuator, which is coupled via a control device with an actuator of the transport roller drive.

Eine besonders einfache Ausgestaltung besteht darin, dass der Antrieb des Messers durch die Nutkante nach Art eines Bewegungsgewindes erfolgt und dass am Anfang der Nut eine Fangvorrichtung für das Messer vorgesehen ist.A particularly simple embodiment consists in that the drive of the knife through the groove edge takes place in the manner of a movement thread and that at the beginning of the groove, a safety device for the knife is provided.

Ab einem gewissen Steigungswinkel der Nut gegenüber der achsparallelen Mantellinie wird durch die Drehbewegung der Walze das Messer in der Nut verschoben, ohne dass es eines besonderen Antriebes bedarf. Das Messer muss lediglich für den vorgesehenen Schneidvorgang in den Bereich der Vorrichtung gebracht werden, um das Messer in die Nut einführen zu können.From a certain pitch angle of the groove relative to the axis-parallel generatrix the knife is moved in the groove by the rotational movement of the roller, without the need for a special drive. The knife only has to be brought into the region of the device for the intended cutting operation in order to be able to insert the knife into the groove.

Wenn an Stelle einer schräg zulaufenden Schnittkante bei der Materialbahn eine spitz zulaufende Schnittkante gewünscht wird, um einen gleichmäßigeren Wickelanfang zu erhalten und dabei gleichzeitig auch die Schnittgeschwindigkeit zu erhöhen, ist in weiterer Ausgestaltung vorgesehen, dass die Transportwalze zwei sich kreuzende Nuten aufweist und dass zwei in entgegengesetzten Richtungen bewegbare Messer angeordnet sind.If instead of a tapered cutting edge in the material web a tapered cutting edge is desired to obtain a more uniform winding start while also increasing the cutting speed, it is provided in a further embodiment that the transport roller has two intersecting grooves and that two in opposite directions movable blades are arranged.

Hierdurch ergibt sich im wesentlichen eine V-förmige Anordnung der Nuten, was zu einem spitz zulaufenden Ende der geschnittenen Materialbahn und damit zu einem leichten Aufwickeln führt, wodurch ein Wickel ohne schräge lineare Kante und damit ein Wickel entsteht, der weitgehend frei von Unwucht ist. Die dabei entstehende im wesentlichen V-förmige Ausgestaltung des Materialbahnendes weist eine exakt geschnittene Spitze auf, da bei zwei Messern, die sich kreuzen, diese zeitlich versetzt den Kreuzungspunkt durchlaufen, was zu einem exakt geführten Schnitt, auch an der Spitze der abgeschnittenen Materialbahn, führt.This results in a substantially V-shaped arrangement of the grooves, which leads to a tapered end of the cut material web and thus to a slight winding, whereby a winding without oblique linear edge and thus a winding is formed, which is largely free of imbalance. The resulting substantially V-shaped configuration of the material web end has a precisely cut tip, as in two knives that intersect, these temporally staggered cross the crossing point, resulting in a precisely guided cut, even at the top of the cut material web leads ,

Je nach gewünschter Form des geschnittenen Materialbahnendes kann der Kreuzungspunkt der beiden Nuten gleiche Abstände zu den Rändern der Transportwalze oder ungleiche Abstände aufweisen.Depending on the desired shape of the cut material web end, the point of intersection of the two grooves may have equal distances to the edges of the transport roller or unequal distances.

Nach einer weiteren Ausgestaltung der Erfindung können zumindest zwei Abschnitte der sich kreuzenden Nuten bis zu jeweils einem Seitenrand der Transportwalze verlaufen. Dies bedeutet, dass die Messer nach Durchlaufung des Kreuzungspunktes aus den Nuten herausgeholt werden. Es ist aber auch möglich, dass sämtliche Abschnitte der sich kreuzenden Nuten bis zu den Seitenrändern verlaufen, wodurch sich eine durchgehende Schnittbewegung der jeweiligen Messer von einem Seitenrand zum gegenüber liegenden Seitenrand ergibt.According to a further embodiment of the invention, at least two sections of the intersecting grooves can extend up to one side edge of the transport roller. This means that the knives are taken out of the grooves after passing through the crossing point. But it is also possible that all sections of the intersecting grooves extend to the side edges, resulting in a continuous cutting movement of the respective knife from one side edge to the opposite side edge.

Die Nuten können unter gleichen Winkeln zur achsparallelen Mantellinie oder auch unter verschiedenen Winkeln zu dieser Mantellinie verlaufen, je nachdem welche Schnittmuster erwünscht sind.The grooves can run at equal angles to the axis-parallel generatrix or at different angles to this generatrix, depending on which patterns are desired.

Wenn in weiterer Ausgestaltung der Erfindung die Messer unabhängig voneinander geführt sind, so ist es möglich, dass diese in vorteilhafter Weise mit gleichen Geschwindigkeiten oder mit unterschiedlichen Geschwindigkeiten antreibbar sind. Unterschiedliche Geschwindigkeiten wird man wählen, wenn der Schnitt der beiden Messer zur gleichen Zeit beendet sein soll, so dass das später startende Messer schneller angetrieben wird. Die Steuerung muss allerdings immer gewährleisten, dass die Messer den Kreuzungspunkt zu unterschiedlichen Zeiten durchlaufen.If the blades are guided independently of each other in a further embodiment of the invention, it is possible that they are driven in an advantageous manner at the same speeds or at different speeds. Different speeds will be chosen if the cut of the two knives should be finished at the same time, so that the blade starting later will be driven faster. However, the controller must always ensure that the knives go through the crossover point at different times.

Die eingangs gestellte Aufgabe kann auch ausgehend von einer Transportwalze der am Anfang angegebenen Art dadurch gelöst werden, dass die Schneidvorrichtung ein im wesentlichen senkrecht zur Materialbahn auf diese zu und wieder wegbewegbares Messer nach Art einer Hackvorrichtung aufweist, die beim gleichzeitigen Durchtrennen der gesamten Materialbahnbreite in eine in der Transportwalze vorgesehene Nut eintaucht.The object stated at the outset can also be achieved starting from a transport roller of the type specified at the outset in that the cutting device moves toward and away from the material web substantially perpendicular to the material web Having knife in the manner of a chopping device, which dips when simultaneously cutting the entire web width in a provided in the transport roller groove.

Die Erfindung wird nachfolgend anhand mehrerer in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert. In der Zeichnung zeigen:

Figur 1:
eine Seitenansicht einer Transportwalze in Verbindung mit einem Wickel einer Materialbahn;
Figur 2:
eine schaubildliche Darstellung der Transportwalze in vergrößertem Maßstabe;
Figur 3:
eine, der Figur 1 entsprechende, Seitenansicht einer weiteren Ausführungsform einer Transportwalze;
Figur 4:
die Transportwalze aus Figur 3 in schaubildlicher Darstellung in vergrößertem Maßstabe;
Figur 5:
eine der Figur 1 und 3 entsprechende Darstellung einer dritten Ausführungsform einer Transportwalze; und
Figur 6:
die Transportwalze aus Figur 5 in schaubildlicher Darstellung und in vergrößertem Maßstabe.
The invention will be explained in more detail with reference to several embodiments shown in the drawings. In the drawing show:
FIG. 1:
a side view of a transport roller in conjunction with a winding of a material web;
FIG. 2:
a perspective view of the transport roller on an enlarged scale;
FIG. 3:
one of the FIG. 1 corresponding, side view of another embodiment of a transport roller;
FIG. 4:
the transport roller FIG. 3 in a perspective view on a larger scale;
FIG. 5:
one of the FIG. 1 and 3 corresponding representation of a third embodiment of a transport roller; and
FIG. 6:
the transport roller FIG. 5 in a perspective view and on an enlarged scale.

Wie aus den Figuren 1, 3 und 5 ersichtlich, ist an einem Tragarm 1 eine Wickelwelle 2 drehbar gelagert, auf die ein Wickel 6 einer Materialbahn 3 aufgewickelt ist. Die Materialbahn 3 läuft über eine Transportwalze 4, die in ständigem Kontakt zum Wickel 6 steht.Like from the FIGS. 1 . 3 and 5 can be seen, a winding shaft 2 is rotatably mounted on a support arm 1, on which a winding 6 of a material web 3 is wound. The material web 3 passes over a transport roller 4, which is in constant contact with the winding 6.

Zum Durchtrennen der Materialbahn 3, wenn der Wickel 6 seine vorgesehene Größe erreicht hat, ist ein Messerhalter 10 mit einem Messer 5 vorgesehen, welches, wie aus den Figuren 2, 4 und 6 ersichtlich, in einer Nut 7 geführt ist. Die Nut 7 verläuft von einem Rand 9 zum gegenüber liegenden Rand unter einem Winkel zu einer achsparallelen Mantellinie 8.For severing the material web 3, when the winding 6 has reached its intended size, a knife holder 10 is provided with a knife 5, which, as from the Figures 2 . 4 and 6 seen in a groove 7 is guided. The groove 7 extends from an edge 9 to the opposite edge at an angle to an axis-parallel surface line. 8

Das Messer 5 mit seinem Messerhalter 10 muss bei seiner Verschiebebewegung vom Rand 9 zum gegenüber liegenden Rand der Transportwalze 4 mit der Umfangsgeschwindigkeit der Transportwalze 4 synchronisiert sein, das heißt, die Messerbewegung ist in Abhängigkeit von der Umfangsgeschwindigkeit der Transportwalze 4 gesteuert.The knife 5 with its knife holder 10 must be synchronized in its displacement movement from the edge 9 to the opposite edge of the transport roller 4 with the peripheral speed of the transport roller 4, that is, the blade movement is controlled in dependence on the peripheral speed of the transport roller 4.

In Figur 2 ist eine Ausführungsform einer Transportwalze dargestellt, über welcher der Messerhalter 10 auf einer Spindel 11 geführt ist, die durch einen elektrischen Spindelantrieb 12 in Umdrehung versetzt wird. Der Messerhalter 10 ist sozusagen eine bewegbare Mutter auf der Spindel 11. Mit 16 ist ein elektrischer Antrieb für die Transportwalze 4 bezeichnet und die beiden Antriebe 12 und 16 werden über eine Steuerung 13 in der Weise synchronisiert, dass der Messerhalter 10 und damit das Messer 5 in der Nut 7 in Abhängigkeit von der Umfangsgeschwindigkeit der Transportwalze 4 in seinem Bewegungsablauf gesteuert wird.In FIG. 2 an embodiment of a transport roller is shown, over which the knife holder 10 is guided on a spindle 11 which is rotated by an electric spindle drive 12 in rotation. The knife holder 10 is, so to speak, a movable nut on the spindle 11. 16 denotes an electric drive for the transport roller 4 and the two drives 12 and 16 are synchronized via a controller 13 in such a way that the knife holder 10 and thus the knife. 5 is controlled in the groove 7 in response to the peripheral speed of the transport roller 4 in its movement.

Bei der Ausführungsform nach Figur 4 ist die Kopplung zwischen dem Messerantrieb und dem Transportwalzenantrieb ein Getriebe in Form eines Riementriebes 14, der die Drehbewegung der Transportwalze 4 auf die Spindel 11 überträgt, wobei das Durchmesserverhältnis der beiden Riemenscheiben 17 und 18 so gewählt ist, dass das Messer 5 in der Nut 7 von dem Rand 9 zum gegenüber liegenden Rand der Transportwalze 4 bewegt wird, wenn sich die Transportwalze 4 um den Winkelbereich, den die beiden Enden der Nut 7 einschließen, gedreht hat.In the embodiment according to FIG. 4 is the coupling between the knife drive and the transport roller drive a transmission in the form of a belt drive 14, which transmits the rotational movement of the transport roller 4 on the spindle 11, wherein the diameter ratio of the two pulleys 17 and 18 is selected so that the knife 5 in the groove is moved from the edge 9 to the opposite edge of the transport roller 4, when the transport roller 4 by the angular range, the two ends of the groove 7 include, has rotated.

Bei dem Ausführungsbeispiel nach Figur 6 wird das Messer 5 durch eine Kante der Nut 7 geführt, wobei eine Fangvorrichtung 15 vorgesehen ist, die das Einführen des Messers 5 in die Nut 7 ermöglicht.According to the embodiment FIG. 6 the knife 5 is guided by an edge of the groove 7, wherein a safety device 15 is provided, which allows the insertion of the knife 5 in the groove 7.

Alle drei Ausführungsformen ermöglichen das Schneiden einer Materialbahn, wenn der entsprechende Wickel fertiggestellt ist.All three embodiments make it possible to cut a material web when the corresponding winding is completed.

Claims (15)

  1. A transport roller (4) for a material web (3) with a cutting device for the material web (3) that is arranged outside the transport roller (4), wherein the cutting device features a knife (5) and means for controlling the knife motion in dependence on the circumferential speed of the transport roller (4) are provided,
    characterized in that the transport roller (4) features a groove (7) that extends from one lateral edge of the transport roller (4) to the opposite edge at an angle to an axially parallel surface line (8) of the transport roller (4),
    and in
    that the knife (5) is movably guided in the groove (7) of the transport roller (4) in the longitudinal direction of the groove (7) during a cutting operation.
  2. The transport roller according to Claim 1, characterized in that the angle included by the groove and the axially parallel surface line is constant.
  3. The transport roller according to Claim 1, characterized in that the angle included by the groove (7) and the axially parallel surface line (8) is variable over the length of the groove (7).
  4. The transport roller according to one of Claims 1 to 3, characterized in that the drive of the knife (5) is realized by coupling the knife to the transport roller drive (18) by means of a gear mechanism (14).
  5. The transport roller according to one of Claims 1 to 3, characterized in that the drive (12) of the knife (5) comprises an electric actuator that is coupled to an actuator of the transport roller drive (16) by means of a control unit (13).
  6. The transport roller according to one of Claims 1 to 3, characterized in that the drive of the knife (5) is realized with the groove edge (7) in the style of a transmission thread, and in that a catch device (15) for the knife (5) is provided at the beginning of the groove (7).
  7. The transport roller according to one of Claims 1 to 6, characterized in that it features two intersecting grooves, and in that two knives are arranged such that they are movable in opposite directions.
  8. The transport roller according Claim 7, characterized in that the intersecting point of the two grooves is equidistantly spaced apart from the edges of the transport roller.
  9. The transport roller according to Claim 7, characterized in that the intersecting point of the two grooves is not equidistantly spaced apart from the edges of the transport roller.
  10. The transport roller according to one of Claims 7 to 9, characterized in that at least two sections of the intersecting grooves extend up to one respective edge of the transport roller.
  11. The transport roller according to one of Claims 7 to 10, characterized in that the grooves extend at identical angles to the axially parallel surface line.
  12. The transport roller according to one of Claims 7 to 10, characterized in that the grooves extend at different angles to the surface line.
  13. The transport roller according to one of Claims 7 to 12, characterized in that the knives are guided independently of one another.
  14. The transport roller according to one of Claims 7 to 13, characterized in that the knives can be driven with identical speeds.
  15. The transport roller according to one of Claims 7 to 13, characterized in that the knives can be driven with different speeds.
EP20050006155 2004-04-08 2005-03-21 Transport roller and transverse cutting device for material webs Not-in-force EP1584427B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017471 2004-04-08
DE200410017471 DE102004017471B3 (en) 2004-04-08 2004-04-08 Transport roller for material webs

Publications (2)

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EP1584427A1 EP1584427A1 (en) 2005-10-12
EP1584427B1 true EP1584427B1 (en) 2013-12-25

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EP20050006155 Not-in-force EP1584427B1 (en) 2004-04-08 2005-03-21 Transport roller and transverse cutting device for material webs

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US (1) US7370564B2 (en)
EP (1) EP1584427B1 (en)
CA (1) CA2503632C (en)
DE (1) DE102004017471B3 (en)

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US7370564B2 (en) 2008-05-13
US20050223865A1 (en) 2005-10-13
DE102004017471B3 (en) 2005-11-17
CA2503632A1 (en) 2005-10-08
EP1584427A1 (en) 2005-10-12
CA2503632C (en) 2010-02-02

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