EP1121227A1 - Variable cross-cutting device - Google Patents

Variable cross-cutting device

Info

Publication number
EP1121227A1
EP1121227A1 EP99948773A EP99948773A EP1121227A1 EP 1121227 A1 EP1121227 A1 EP 1121227A1 EP 99948773 A EP99948773 A EP 99948773A EP 99948773 A EP99948773 A EP 99948773A EP 1121227 A1 EP1121227 A1 EP 1121227A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cross
cutting device
counter
knife
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.)
Withdrawn
Application number
EP99948773A
Other languages
German (de)
French (fr)
Inventor
Klaus Wittmaier
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.)
Schober GmbH Werkzeug und Maschinenbau
Original Assignee
Schober GmbH Werkzeug und Maschinenbau
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 Schober GmbH Werkzeug und Maschinenbau filed Critical Schober GmbH Werkzeug und Maschinenbau
Publication of EP1121227A1 publication Critical patent/EP1121227A1/en
Withdrawn legal-status Critical Current

Links

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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/25—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 cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like

Definitions

  • the invention relates to a cross cutting device with the features of the preamble of claim 1.
  • a cross cutting device is known from CA-Al-2, 176, 282, from which the present invention is based.
  • this cross cutting device is very complicated in construction and therefore expensive.
  • the cross cutting device of the present invention according to the features of claim 1 has a relatively simple construction, since the counter pressure tool is a simple cylinder or a counter cutting bar.
  • the following invention describes a variable cross cutter that fulfills all technical conditions and can also be manufactured inexpensively.
  • the cross cutting device consists of the following components:
  • the frame construction of the cross cutting device can be made from different materials (aluminum, cast steel, steel, etc.)
  • the pair of feed shafts which has the task of introducing a material or material web into the unit, can either be attached directly to the cross-cutting device and also driven from there, or it can be built up separately, or can already be part of an existing machine.
  • the task of this device is to introduce the material into the cross-cutting device at a constant or variable speed.
  • a register control can also act on the feed station if cross-cutting or perforation with printed registers is required for printed webs.
  • the impression cylinder serves as a counter bearing for the cutting or perforating knife when cutting the material web during the cutting process.
  • this is a very precisely mounted counter-pressure cylinder, which is either made of hardened steel or other hard material or is equipped with exchangeable hardened strips.
  • the surface speed or speed of the impression cylinder is adjusted to the web and can, if necessary, also from a existing base machine can be driven from.
  • a counter-cutting bar can also be provided, which works together with the cross-cutting knife.
  • the cross cutting rotor marked with 4 is used to hold cross cutting knives or cross perforation lines of all kinds.
  • cross-cutting knives are installed with the aid of a quick-action clamping device.
  • Other types of fastening are also conceivable and possible here. It is essential, however, that this cross-cutting rotor, in conjunction with the quick-action clamping bar, enables quick replacement with perforating lines and cutting knives, which is a clear advantage over existing systems.
  • the cross-cutting rotor has its own electromotive drive (servo motor), which influences the rotor speed with a specially designed control.
  • servo motor electromotive drive
  • only one knife or a maximum of two knives are attached to the rotor itself; in other exemplary embodiments, more knives are also conceivable. Due to the acceleration and deceleration compared to the web, different section lengths can now be cut or perforated.
  • the cross-cutting rotor assumes the web speed only in the range of + 10 ° around the cutting point and in the meantime either runs at its circumferential speed, measured on the web, slower or faster. Through this act the actual length of the web is reached.
  • the cross-cutting rotor has a special external shape that is of essential importance.
  • the cross cutting rotor has a particularly favorable and suitable shape that combines several advantages. On the one hand, large cross-cutting forces are absorbed by a high bending resistance due to the particularly suitable sword shape.
  • the second advantage is that the remaining parts that deviate from the normal circular shape and are omitted represent a significant saving in mass.
  • the special shape of the rotor has the advantage over other constructions that high bending moment with low weight is present, as well as the further advantage that due to the construction of the width "X" the depth of penetration into the web can be varied depending on the thickness of the goods and the angle of entry of the knife can and thus the cutting rotor is also suitable for cutting thick webs.
  • Figure 2 shows an advantageous embodiment of the cross cutting rotor, in which a further essential advantage is integrated.
  • Figure 1 it can be assumed that, while the rotor is working, in contrast to a normal round shaft, a correspondingly large amount of air has to be displaced and therefore the air resistance also counteracts the drive power.
  • the generation of this effect is also unfavorable for the further processing of material webs or cut sheets or is disruptive for operating personnel.
  • differently large and different numbers of transverse bores were made in the rotor transverse to its longitudinal axis. These cross holes significantly reduce air displacement. It is also important that the installation of these cross bores additionally reduces the mass considerably, which is further advantageous.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention relates to a cutting device, especially a cross-cutting device for continuous webs, comprising a transportation device (2) for the continuous web, a cross-cutting knife (4) and a counter-pressure tool (3). The cross-cutting knife (4) is swordshaped and the counter-pressure tool (3) is a cylinder which interacts with the cross-cutting knife (4), or a counter-cutting rail. The counter-pressure cylinder or counter-cutting rail and the cross-cutting knife accommodate the continuous web between them.

Description

Titel : Variable QuerschneideeinrichtungTitle: Variable cross cutter
Beschreibungdescription
Die Erfindung betrifft eine Querschneideeinrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a cross cutting device with the features of the preamble of claim 1.
In der Vergangenheit wurden unterschiedliche Längenabschnitte aus kontinuierlich laufendem Material bzw. Warenbahnen derart hergestellt, daß man unterschiedlich große formathaltige Zylinder verwendet hat. Am Umfang dieser formathaltigen Zylinder war dann eine bestimmte Anzahl von Messern eingebracht. So z. B. konnten mit einem Zylinder mit 24" (Zoll) Umfang entweder einmal 24", zweimal 12", dreimal 8", viermal 6" oder sechsmal 4" eingebracht werden. Die Querperforier- oder auch Querschneideeinrichtungen waren also abhängig vom Format des eingebauten Zylinders, wie aber auch von dem vorab gewählten Format, z. B. Zoll oder mm.In the past, different length sections were produced from continuously running material or material webs in such a way that cylinders of different sizes were used. A certain number of knives were then placed on the circumference of these cylinders containing format. So z. For example, a 24 "(inch) circumference cylinder could be used to insert either once 24", twice 12 ", three times 8", four times 6 "or six times 4". The cross perforation or cross cutting devices were so depending on the format of the built-in cylinder, but also on the previously selected format, e.g. B. inches or mm.
Bekannt war, daß mit einer geeigneten Motorleistung versehen, man in der Lage ist, Querschneideeinrichtungen zu beschleunigen und zu verzögern, um so unterschiedliche Abschnittlängen herstellen zu können. In aller Regel scheiterte die Variabilität dieser Querschneider jedoch darin, daß extrem hohe Antriebs- und Verzögerungsleistungen an den Motoren notwendig waren und dadurch Genauigkeit verloren ging, was besonders bei bedruckten Warenbahnen ungeeignet war. Des weiteren wurden die Kosten dadurch negativ beeinflußt.It was known that provided with a suitable motor power, one is able to accelerate and decelerate cross-cutting devices in order to be able to produce different section lengths. As a rule, however, the variability of these cross cutters failed in that extremely high drive and deceleration powers were necessary on the motors and accuracy was lost as a result, which was particularly unsuitable for printed webs. Furthermore, the costs were adversely affected.
Aus der CA-Al-2 , 176 , 282 ist eine Querschneideeinrichtung bekannt, von der die vorliegende Erfindung ausgeht. Diese Querschneideeinrichtung ist jedoch sehr kompliziert im Aufbau und daher kostspielig.A cross cutting device is known from CA-Al-2, 176, 282, from which the present invention is based. However, this cross cutting device is very complicated in construction and therefore expensive.
Die Querschneideeinrichtung der vorliegenden Erfindung gemäß den Merkmalen des Anspruchs 1 weist einen relativ einfachen Aufbau auf, da das Gegendruckwerkzeug ein einfacher Zylinder oder eine Gegenschneidleiste ist.The cross cutting device of the present invention according to the features of claim 1 has a relatively simple construction, since the counter pressure tool is a simple cylinder or a counter cutting bar.
Die nachstehende Erfindung beschreibt einen variablen Querschneider, der alle technischen Bedingungen erfüllt und darüber hinaus kostengünstig hergestellt werden kann. Die Querschneideeinrichtung besteht im einzelnen aus folgenden Komponenten:The following invention describes a variable cross cutter that fulfills all technical conditions and can also be manufactured inexpensively. The cross cutting device consists of the following components:
1. Aggregatrahmen/Gehäuse1. Unit frame / housing
Die Rahmenkonstruktion der Querschneideeinrichtung kann aus unterschied-liehen Materialien hergestellt werden (Aluminium, Stahlguß, Stahl, etc.) DieThe frame construction of the cross cutting device can be made from different materials (aluminum, cast steel, steel, etc.)
Konstruktionsmerkmale dieses Rahmens sind abhängig von der entsprechenden Warenbahnbreite, dem Durchmesser der Walzen und anderen Einflüssen. Der Rahmen dient zur Aufnahme der nachfolgend beschriebenen Elemente.Design features of this frame depend on the corresponding web width, the diameter of the rollers and other influences. The frame serves to accommodate the elements described below.
EinzugswellenFeed shafts
Das Einzugswellenpaar, das die Aufgabe hat, eine Material- bzw. Warenbahn in das Aggregat einzuführen, kann entweder direkt an der Querschneideeinrichtung angebaut sein und von dort auch angetrieben werden, oder sie kann separat davor aufgebaut oder auch bereits Bestandteil einer vorhandenen Maschine sein. Aufgabe dieser Einrichtung ist es, das Material mit konstanter oder veränderlicher Geschwindigkeit in die Querschneideeinrichtung einzuführen. Auf die Einzugstation kann auch eine Registersteuerung Einwirkung haben, falls registergenaues Querschneiden oder Perforieren bei bedruckten Warenbahnen erforderlich ist.The pair of feed shafts, which has the task of introducing a material or material web into the unit, can either be attached directly to the cross-cutting device and also driven from there, or it can be built up separately, or can already be part of an existing machine. The task of this device is to introduce the material into the cross-cutting device at a constant or variable speed. A register control can also act on the feed station if cross-cutting or perforation with printed registers is required for printed webs.
GegendruckzylinderImpression cylinder
Der Gegendruckzylinder dient während des Schneidevorgangs dem Schneid- oder Perforiermesser als Gegenlager beim Durchtrennen der Materialbahn. Es handelt sich hier in aller Regel um einen sehr präzise gelagerten Gegendruckzylinder, der entweder aus gehärtetem Stahl oder aus anderem harten Material oder mit austauschbaren gehärteten Leisten versehen ist. Die Oberflächengeschwindigkeit bzw. Drehzahl des Gegendruckzylinders ist der Warenbahn angeglichen und kann bei Bedarf auch von einer evtl . bestehenden Basismaschine aus angetrieben werden.The impression cylinder serves as a counter bearing for the cutting or perforating knife when cutting the material web during the cutting process. As a rule, this is a very precisely mounted counter-pressure cylinder, which is either made of hardened steel or other hard material or is equipped with exchangeable hardened strips. The surface speed or speed of the impression cylinder is adjusted to the web and can, if necessary, also from a existing base machine can be driven from.
Anstelle des Gegendruckzylinders kann auch eine Gegenschneidleiste vorgesehen sein, die mit dem Querschneidmesser zusammenarbeitet .Instead of the counter-pressure cylinder, a counter-cutting bar can also be provided, which works together with the cross-cutting knife.
Querschneiderotor (QuerSchneidemesser)Cross cutting rotor (cross cutting knife)
Der mit 4 gekennzeichnete Querschneiderotor dient zur Aufnahme von Querschneidmessern oder Querperforierlinien aller Art. Bei dem bevorzugten Ausführungsbeispiel werden Querschneidemesser mit Hilfe einer Schnellspanneinrichtung eingebaut . Hier sind auch andere Befestigungsarten denkbar und möglich. Wesentlich ist aber, daß bei diesem Querschneiderotor in Verbindung mit der Schnellspannleiste ein schnelles Auswechseln mit Perforierlinien und Schneidmessern möglich ist, was ein deutlicher Vorteil gegenüber bestehenden Systemen darstellt.The cross cutting rotor marked with 4 is used to hold cross cutting knives or cross perforation lines of all kinds. In the preferred embodiment, cross-cutting knives are installed with the aid of a quick-action clamping device. Other types of fastening are also conceivable and possible here. It is essential, however, that this cross-cutting rotor, in conjunction with the quick-action clamping bar, enables quick replacement with perforating lines and cutting knives, which is a clear advantage over existing systems.
Der Querschneiderotor besitzt einen eigenen elektromotorischen Antrieb (Servo Motor) , der mit einer dafür ausgelegten Regelung die Rotordrehzahl beeinflußt . Am Rotor selbst sind bei dem vorliegenden Ausführungsbei- spiel nur ein Messer oder maximal zwei Messer angebracht, bei anderen Ausführungsbeispielen sind auch mehr Messer denkbar. Auf Grund der Beschleunigung und Verzögerung gegenüber der Warenbahn können nun unterschiedliche Abschnittslängen geschnitten oder perforiert werden.The cross-cutting rotor has its own electromotive drive (servo motor), which influences the rotor speed with a specially designed control. In the present exemplary embodiment, only one knife or a maximum of two knives are attached to the rotor itself; in other exemplary embodiments, more knives are also conceivable. Due to the acceleration and deceleration compared to the web, different section lengths can now be cut or perforated.
Wesentlich ist, daß der Querschneiderotor nur im Bereich von +10° um den Schneidpunkt die Warenbahngeschwindigkeit annimmt und in der Zwischenzeit entweder an seiner Umfangsgeschwindigkeit, gemessen an der Warenbahn, langsamer oder schneller läuft. Durch diesen Akt wird die tatsächliche Warenbahnlänge erreicht. Wie in Figur 1 bereits angedeutet, hat der Querschneiderotor eine besondere äußere Form, die von wesentlicher Bedeutung ist . Abweichend von den bisherigen Schneidzylindern, die rund waren, weist der Querschneiderotor eine besonders günstige und geeignete Form auf, die mehrere Vorteile in sich vereint. So werden zum einen aufkommende große Querschneidekräfte durch die besonders geeignete Schwertform von einem hohen Biegewiderstand aufgenommen.It is essential that the cross-cutting rotor assumes the web speed only in the range of + 10 ° around the cutting point and in the meantime either runs at its circumferential speed, measured on the web, slower or faster. Through this act the actual length of the web is reached. As already indicated in FIG. 1, the cross-cutting rotor has a special external shape that is of essential importance. In contrast to the previous cutting cylinders, which were round, the cross cutting rotor has a particularly favorable and suitable shape that combines several advantages. On the one hand, large cross-cutting forces are absorbed by a high bending resistance due to the particularly suitable sword shape.
Zweiter Vorteil ist, daß die restlichen, von der normalen Kreisform abweichenden Teile, die entfallen, eine deutliche Masseneinsparung darstellen.The second advantage is that the remaining parts that deviate from the normal circular shape and are omitted represent a significant saving in mass.
Die spezielle Rotorform hat gegenüber anderen Konstruktionen neben dem Vorteil, daß hohes Biegewiderstandsmoment bei geringem Gewicht vorhanden ist, auch noch den weiteren Vorteil, daß auf Grund der Konstruktion der Breite "X" je nach Warendicke und Eintrittwinkel des Messers die Eindringtiefe in die Warenbahn variiert werden kann und somit der Schneiderotor auch zum Schneiden von dicken Warenbahnen geeignet ist .The special shape of the rotor has the advantage over other constructions that high bending moment with low weight is present, as well as the further advantage that due to the construction of the width "X" the depth of penetration into the web can be varied depending on the thickness of the goods and the angle of entry of the knife can and thus the cutting rotor is also suitable for cutting thick webs.
Wesentlich ist weiter, daß der Rotor entweder wie in 6 abgerundete Seitenflanken hat oder aber Flächige wie in 7 erkennbar, oder Spitze wie in 8 dargestellt. Figur 2 zeigt eine vorteilhafte Ausführung des Querschneiderotors, in dem noch ein weiterer wesentlicher Vorteil integriert ist. Wie aus Figur 1 erkennbar, ist davon auszugehen, daß während der Rotor arbeitet, im Gegensatz zu einer normalen runden Welle, eine entsprechend große Menge Luft verdrängt werden muß und daher der Luftwiderstand auch der Antriebsleistung entgegenwirkt . Darüber hinaus ist die Erzeugung von diesem Effekt auch für die Weiterverarbeitung von Warenbahnen oder geschnittenen Blättern ungünstig oder für Bedienungspersonal störend. Um diesen Effekt deutlich zu vermindern, wurden in den Rotor quer zu seiner Längsachse unterschiedlich große und in seiner Anzahl unterschiedlich viel Querbohrungen eingebracht. Diese Querbohrungen reduzieren die Luftverdrängung deutlich. Wesentlich ist weiter, daß das Anbringen dieser Querbohrungen noch zusätzlich die Masse erheblich reduziert, was weiter vorteilhaft ist. It is further important that the rotor either has rounded side flanks as in FIG. 6 or flat surfaces as can be seen in FIG. 7, or tip as shown in FIG. 8. Figure 2 shows an advantageous embodiment of the cross cutting rotor, in which a further essential advantage is integrated. As can be seen from Figure 1, it can be assumed that, while the rotor is working, in contrast to a normal round shaft, a correspondingly large amount of air has to be displaced and therefore the air resistance also counteracts the drive power. In addition, the generation of this effect is also unfavorable for the further processing of material webs or cut sheets or is disruptive for operating personnel. In order to significantly reduce this effect, differently large and different numbers of transverse bores were made in the rotor transverse to its longitudinal axis. These cross holes significantly reduce air displacement. It is also important that the installation of these cross bores additionally reduces the mass considerably, which is further advantageous.

Claims

Patentansprüche claims
1. Schneidevorrichtung, insbesondere Querschneideeinrichtung für Endlosbahnen, mit einer Transporteinrichtung für die Endlosbahn, einem Querschneidemesser und einem Gegendruckwerkzeug, wobei das Querschneidemesser eine Schwertform aufweist, dadurch gekennzeichnet, dass das Gegendruckwerkzeug ein mit dem Querschneidemesser zusammenarbeitender Zylinder oder eine Gegenschneidleiste ist und dass der Gegendruckzylinder oder die Gegenschneidleiste und das Querschneidemesser die Endlosbahn zwischen sich aufnehmen.1.Cutting device, in particular cross cutting device for endless webs, with a transport device for the endless web, a cross cutting knife and a counter pressure tool, the cross cutting knife having a sword shape, characterized in that the counter pressure tool is a cylinder working with the cross cutting knife or a counter cutting bar and that the counter pressure cylinder or the counter cutting bar and the cross cutting knife take the endless path between them.
2. Schneidvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Gegendruckzylinder oder die Gegenschneidleiste in der Höhe zwar einstellbar, aber nach dem Einstellvorgang starr positioniert ist.2. Cutting device according to claim 1, characterized in that the counter pressure cylinder or the counter cutting bar is adjustable in height, but is rigidly positioned after the adjustment process.
3. Schneidvorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass der Gegendruckzylinder drehbar gelagert ist .3. Cutting device according to claim 1 or 2, characterized in that the impression cylinder is rotatably mounted.
4. Schneidvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Sensoren für auf der Endlosbahn vorgesehene Passermarken vorgesehen sind. 4. Cutting device according to one of the preceding claims, characterized in that sensors are provided for registration marks provided on the endless web.
5. Schneidvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Steuereinrichtung für den Antrieb das Querschneidemesser vorgesehen ist.5. Cutting device according to one of the preceding claims, characterized in that a control device for driving the cross-cutting knife is provided.
6. Schneidvorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Steuereinrichtung über die Sensoren ansteuerbar sind.6. Cutting device according to claim 4 or 5, characterized in that the control device can be controlled via the sensors.
7. Schneidvorrichtung nach Anspruch 5 oder 6 , dadurch gekennzeichnet, dass der Antrieb, insbesondere ein Servo- Motor die Querschneideeinrichtung mit variabler Geschwindigkeit antreibt.7. Cutting device according to claim 5 or 6, characterized in that the drive, in particular a servo motor drives the cross cutting device at variable speed.
8. Schneidvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Querschneidemesser eine Schnellspanneinrichtung aufweist, mit der Schneidmesser oder Perforiermesser einspannbar sind.8. Cutting device according to one of the preceding claims, characterized in that the cross-cutting knife has a quick-action clamping device with which the cutting knife or perforating knife can be clamped.
9. Schneidvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Querschneidemesser auf seinen radial innen liegenden Bereichen zwischen den Schneidkanten abgerundet oder trapezförmig ausgebildet oder mit einer Kante versehen ist. 9. Cutting device according to one of the preceding claims, characterized in that the cross-cutting knife on its radially inner regions between the cutting edges is rounded or trapezoidal or provided with an edge.
0. Schneidvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Querschneidemesser quer zur Längsachse verlaufende Durchbrüche, insbesondere Querbohrungen aufweist. 0. Cutting device according to one of the preceding claims, characterized in that the cross-cutting knife has openings extending transversely to the longitudinal axis, in particular cross bores.
EP99948773A 1998-10-12 1999-09-17 Variable cross-cutting device Withdrawn EP1121227A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19846864 1998-10-12
DE19846864 1998-10-12
PCT/EP1999/006889 WO2000021723A1 (en) 1998-10-12 1999-09-17 Variable cross-cutting device

Publications (1)

Publication Number Publication Date
EP1121227A1 true EP1121227A1 (en) 2001-08-08

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EP (1) EP1121227A1 (en)
CA (1) CA2346815A1 (en)
WO (1) WO2000021723A1 (en)

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CA2346815A1 (en) 2000-04-20

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