EP0600220A1 - Transverse cutter for web material, particularly for carton web - Google Patents

Transverse cutter for web material, particularly for carton web Download PDF

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Publication number
EP0600220A1
EP0600220A1 EP93117338A EP93117338A EP0600220A1 EP 0600220 A1 EP0600220 A1 EP 0600220A1 EP 93117338 A EP93117338 A EP 93117338A EP 93117338 A EP93117338 A EP 93117338A EP 0600220 A1 EP0600220 A1 EP 0600220A1
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EP
European Patent Office
Prior art keywords
knife
cylinders
knife cylinders
composite material
holders
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
EP93117338A
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German (de)
French (fr)
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EP0600220B1 (en
Inventor
Felix Titz
Hans Mosburger
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
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BHS Corrugated Maschinen und Anlagenbau GmbH
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Publication of EP0600220A1 publication Critical patent/EP0600220A1/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
    • 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
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
    • B26D2001/0026—Materials or surface treatments therefor, e.g. composite materials fiber reinforced materials
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4824—With means to cause progressive transverse cutting
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9396—Shear type

Definitions

  • the invention relates to a cross cutter for webs of goods, in particular for a corrugated cardboard web with the features of the preambles of claims 1, 3 and 4.
  • a cross cutter is known in which tubular knife cylinders made of carbon fiber composite material are rotatably mounted in pairs on top of one another in a machine frame.
  • the knife holders with knives and opposite counterweight attached to each knife cylinder are still made of metal.
  • the disadvantage here is that the mass moment of inertia of the rotating knife cylinder system does not allow the highest possible operating speed with reduced energy consumption.
  • such a cross cutter does not achieve the optimum cutting quality for the web due to the bending of the knife rollers during the cut.
  • the invention has for its object to provide a cross cutter that ensures a high cut quality for the web and reduces energy consumption.
  • the invention offers the advantage that because of the use of fiber composite material with a thermal expansion coefficient close to or equal to 0 mm / K for knife cylinder, knife holder and counterweight, no elongation occurs when heated, so that fixed bearings can be used for both ends of the knife cylinder, which reduces the deflection of the knife cylinder and improves the cutting quality. In addition, the moment of inertia and thus the energy consumption is reduced.
  • helical gears can be used to increase smoothness and maintain good cutting quality.
  • the invention offers the advantage that the deflection of the knife rollers can be reduced or eliminated using stresses similar to those of the prestressed concrete.
  • the cross cutter 1, in particular for a corrugated cardboard web 20, has lateral, stationary frame cheeks 2, 3.
  • an upper knife cylinder 4 and a lower knife cylinder 5 are rotatably mounted.
  • the knife cylinders 4, 5 have on their Ends shaft stub 6, which are mounted in the frame cheeks 2, 3 by means of bearings 7.
  • the stub shaft 6 thus carry fixed gears 10 which mesh with each other and with a drive gear, not shown.
  • a counterweight 17 is attached to the knife cylinder 15, opposite the knife holder 15.
  • the cross cutter described so far is of a known type.
  • the heating of the knife cylinder system to approximately 60 ° C., which is caused by the work of the cross cutter 1, can be used to avoid or reduce the deflection of the knife cylinders 4, 5 at the desired low moments of inertia. This deflection affects the quality of the web cut.
  • the knife cylinders 4, 5 are manufactured according to the invention from a material which has a low, preferably negative coefficient of thermal expansion.
  • a fiber composite material is suitable for this, e.g. a carbon fiber composite material.
  • knife holder 15 and the opposite counterweight 17 are made of a material with a high, positive coefficient of thermal expansion. This results in a stress distribution similar to that in prestressed concrete. The deflection of the knife cylinder system, due to the cutting force, this is significantly reduced.
  • the knife cylinders 4, 5 usually bend more in the middle than at the ends due to the cutting force during cross cutting. There is a lower contact pressure of the knives in the middle of the knife cylinders than at the ends and thus a deterioration in the cutting quality.
  • the targeted choice of materials for the knife cylinder system results in high cutting quality. It is also possible to choose a material with a low coefficient of thermal expansion for the knife cylinders 4, 5, a material with a low coefficient of thermal expansion for the counterweight 17 and a material with a high coefficient of thermal expansion for the knife holder 15.
  • a material with a low coefficient of thermal expansion for the knife cylinders 4, 5 a material with a low coefficient of thermal expansion for the counterweight 17 and a material with a high coefficient of thermal expansion for the knife holder 15.
  • fixed bearings 8 can be used on both cutter bar ends. This also considerably reduces the deflection of the knife cylinders 4, 5 and the contact pressure required for the knives 16 for a good cutting quality is maintained.
  • a helical gear 10 can be used on both knife cylinder ends, which increases the smoothness of the knife cylinder system, i.e. there are no increased deflection amplitudes due to the rolling process of the gears and the contact pressure of the knives 16 is maintained, thus a good quality of cut is achieved.
  • the knife holder 15 is made of a fiber composite material, e.g. Carbon fiber composite material, manufactured with a density of 1.5 km / dm3.
  • the knife 16 ' is formed only at the tip of the knife holder 15. It can be provided in a longitudinal recess 18 open to the outside.
  • This knife 16 ' consists of a wear-resistant material, preferably steel or ceramic.
  • the knife holder 15 is fastened to the knife cylinder 4, 5 by means of screws 19 penetrating holes (not shown). Such a knife holder 15 with knife 16 'significantly reduces the moment of inertia of the knife cylinder system. This increases the working speed and saves energy.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)

Abstract

The transverse cutter for webs, especially for a web of corrugated cardboard, has tubular cutting cylinders (4, 5) which are made of a fibre composite material and are rotatably mounted in pairs, one above the other, in a machine frame (2, 3). To the cutting cylinders there are fastened cutter holders (15) for cutters (16) which are arranged in an inclined fashion around the circumference of the cutting cylinders. Opposite the cutter holders there are arranged counter weights (17) on the cutting cylinders. The cutting cylinders intermesh by means of gear wheels (10), which can be used to drive the cutting cylinders. The cutting cylinder (4, 5), the cutter holder (15) and the counter weight (17) are composed of a composite material having a coefficient of thermal expansion which is close to or equal to 0 mm/K. The bearings (7) at both ends of the cutting cylinders are fixed bearings. This means that the optimum cutting quality can be obtained owing to the decreased deflection of the cutting cylinders and power consumption can be lower owing to the reduced mass moment of inertia. <IMAGE>

Description

Die Erfindung betrifft einen Querschneider für Warenbahnen, insbesondere für eine Wellpappenbahn mit den Merkmalen der Oberbegriffe der Patentansprüche 1, 3 und 4.The invention relates to a cross cutter for webs of goods, in particular for a corrugated cardboard web with the features of the preambles of claims 1, 3 and 4.

Nach dem DE-GM 89 00 516 ist ein Querschneider bekannt, bei dem rohrförmige Messerzylinder aus Kohlefaserverbundmaterial paarweise übereinander in einem Maschinengestell rotierbar gelagert sind. Die an jedem Messerzylinder befestigten Messerhalter mit Messer sowie gegenüberliegendem Gegengewicht sind nach wie vor aus Metall. Nachteilig ist hierbei, daß das Massenträgheitsmoment des rotierenden Messerzylindersystems nicht die höchstmögliche Betriebsdrehzahl bei verringerter Energieaufnahme zuläßt. Zum anderen erreicht ein solcher Querschneider wegen des Durchbiegens der Messerwalzen beim Schnitt nicht die optimale Schnittgüte für die Bahn.According to DE-GM 89 00 516 a cross cutter is known in which tubular knife cylinders made of carbon fiber composite material are rotatably mounted in pairs on top of one another in a machine frame. The knife holders with knives and opposite counterweight attached to each knife cylinder are still made of metal. The disadvantage here is that the mass moment of inertia of the rotating knife cylinder system does not allow the highest possible operating speed with reduced energy consumption. On the other hand, such a cross cutter does not achieve the optimum cutting quality for the web due to the bending of the knife rollers during the cut.

Der Erfindung liegt die Aufgabe zugrunde, einen Querschneider zu schaffen, der eine hohe Schnittgüte für die Bahn gewährleistet und die Energieaufnahme verringert.The invention has for its object to provide a cross cutter that ensures a high cut quality for the web and reduces energy consumption.

Die Erfindung löst diese Aufgabe mit den kennzeichnenden Merkmalen der Patentansprüche 1, 3 und 4.The invention solves this problem with the characterizing features of claims 1, 3 and 4.

Die Erfindung bietet den Vorteil, daß wegen der Verwendung von Faserverbundmaterial mit einem Wärmeausdehnungskoeffizienten nahe oder gleich 0 mm/K für Messerzylinder, Messerhalter und Gegengewicht, keine Längendehnung bei Erwärmung eintritt, damit Festlager für beide Enden des Messerzylinders einsetzbar sind, wodurch die Durchbiegung der Messerzylinder verringert und die Schnittgüte verbessert wird. Zudem wird das Massenträgheitsmoment und damit die Energieaufnahme verringert.The invention offers the advantage that because of the use of fiber composite material with a thermal expansion coefficient close to or equal to 0 mm / K for knife cylinder, knife holder and counterweight, no elongation occurs when heated, so that fixed bearings can be used for both ends of the knife cylinder, which reduces the deflection of the knife cylinder and improves the cutting quality. In addition, the moment of inertia and thus the energy consumption is reduced.

Zudem können schrägverzahnte Zahnräder mit einer Erhöhung der Laufruhe und Aufrechterhaltung einer guten Schnittgüte eingesetzt werden.In addition, helical gears can be used to increase smoothness and maintain good cutting quality.

Weiter bietet die Erfindung den Vorteil, daß die Durchbiegung der Messerwalzen unter Ausnützung von Spannungen ähnlich denen des Spannbetons verringert oder aufgehoben werden kann.Furthermore, the invention offers the advantage that the deflection of the knife rollers can be reduced or eliminated using stresses similar to those of the prestressed concrete.

Andererseits bietet die Erfindung den Vorteil, die Durchbiegung der Messerzylinder dahingehend zu beeinflussen, daß die bei Erwärmung auftretenden Längendehnungen eine Bombage der Messerzylindersysteme herbeiführen.On the other hand, the invention offers the advantage of influencing the deflection of the knife cylinder in such a way that the longitudinal expansions that occur when heated cause the knife cylinder systems to bomb.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further embodiments of the invention result from the subclaims.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. In der Zeichnung zeigen:

Fig. 1
eine schematische Ansicht eines Querschneiders nach der Erfindung;
Fig. 2
einen Querschnitt eines Messerzylinders und
Fig. 3
einen Querschnitt eines Messerhalters mit Messer.
The invention is explained in more detail below with reference to an embodiment shown in the drawing. The drawing shows:
Fig. 1
is a schematic view of a cross cutter according to the invention;
Fig. 2
a cross section of a knife cylinder and
Fig. 3
a cross section of a knife holder with knife.

Der Querschneider 1, insbesondere für eine Wellpappenbahn 20, besitzt seitliche, ortsfeste Gestellwangen 2, 3. In diesen ist ein oberer Messerzylinder 4 und ein unterer Messerzylinder 5 rotierbar gelagert. Die Messerzylinder 4, 5 besitzen an ihren Enden Wellenstummel 6, die mittels Lager 7 in den Gestellwangen 2, 3 gelagert sind.The cross cutter 1, in particular for a corrugated cardboard web 20, has lateral, stationary frame cheeks 2, 3. In this an upper knife cylinder 4 and a lower knife cylinder 5 are rotatably mounted. The knife cylinders 4, 5 have on their Ends shaft stub 6, which are mounted in the frame cheeks 2, 3 by means of bearings 7.

Die Lager 7 auf der einen Seite sind Festlager 8, die Lager 7 auf der anderen Seite Loslager 9.The bearings 7 on one side are fixed bearings 8, the bearings 7 on the other side are floating bearings 9.

Die Wellenstummel 6 tragen damit fest verbundene Zahnräder 10, die miteinander und mit einem nicht dargestellten Antriebszahnrad kämmen.The stub shaft 6 thus carry fixed gears 10 which mesh with each other and with a drive gear, not shown.

Jeder Messerzylinder 4, 5 trägt am Umfang mit Drall verlaufend einen Messerhalter 15 mit Messer 16. Diese Messer 16 der beiden Messerzylinder 4,5 wirken zum Schneiden einer Bahn 20 zusammen, wobei die Schneidstelle infolge des Messerschneidenverlaufs beim Schneidvorgang quer über die Bahn 20 wandert.Each knife cylinder 4, 5 carries a knife holder 15 with a knife 16 running on the circumference with a twist. These knives 16 of the two knife cylinders 4, 5 work together to cut a web 20, the cutting point moving across the web 20 as a result of the knife edge course during the cutting process.

Dem Messerhalter 15 gegenüberliegend ist am Messerzylinder 4, 5 ein Gegengewicht 17 befestigt.A counterweight 17 is attached to the knife cylinder 15, opposite the knife holder 15.

Der bisher beschriebene Querschneider ist bekannter Bauart.The cross cutter described so far is of a known type.

Die durch die Arbeit des Querschneiders 1 bedingte Erwärmung des Messerzylindersystems auf ca. 60° C kann dazu ausgenutzt werden, die Durchbiegung der Messerzylinder 4, 5 bei erwünschten geringen Massenträgheitsmomenten zu vermeiden oder zu vermindern. Diese Durchbiegung beeinträchtigt die Güte des Bahnschnittes.The heating of the knife cylinder system to approximately 60 ° C., which is caused by the work of the cross cutter 1, can be used to avoid or reduce the deflection of the knife cylinders 4, 5 at the desired low moments of inertia. This deflection affects the quality of the web cut.

Die Messerzylinder 4, 5 werden nach der Erfindung aus einem Material hergestellt, welches einen geringen, vorzugsweise negativen Wärmeausdehnungskoeffizienten besitzt. Hierfür eignet sich ein Faserverbundmaterial, z.B. ein Kohlefaserverbundmaterial.The knife cylinders 4, 5 are manufactured according to the invention from a material which has a low, preferably negative coefficient of thermal expansion. A fiber composite material is suitable for this, e.g. a carbon fiber composite material.

Demgegenüber bestehen Messerhalter 15 und das gegenüberliegende Gegengewicht 17 aus einem Material mit hohem, positiven Wärmeausdehnungskoeffizienten. Hierdurch ergibt sich eine Spannungsverteilung ähnlich wie im Spannbeton. Die Durchbiegung des Messerzylindersystems, bedingt durch die Schnittkraft, wird hierdurch bedeutend verringert.In contrast, knife holder 15 and the opposite counterweight 17 are made of a material with a high, positive coefficient of thermal expansion. This results in a stress distribution similar to that in prestressed concrete. The deflection of the knife cylinder system, due to the cutting force, this is significantly reduced.

Üblicherweise biegen sich die Messerzylinder 4, 5 infolge der Schnittkraft beim Querschneiden in der Mitte stärker durch als an den Enden. Es ergibt sich an den Messerzylindern in der Mitte ein geringerer Anpreßdruck der Messer als an den Enden und damit eine Verschlechterung der Schnittgüte.The knife cylinders 4, 5 usually bend more in the middle than at the ends due to the cutting force during cross cutting. There is a lower contact pressure of the knives in the middle of the knife cylinders than at the ends and thus a deterioration in the cutting quality.

Die gezielte Werkstoffwahl für das Messerzylindersystem ergibt eine hohe Schnittgüte. Es ist auch möglich, für die Messerzylinder 4, 5 ein Material mit einem geringen Wärmeausdehnungskoeffizienten, für das Gegengewicht 17 ein Material mit einem geringen Wärmeausdehnungskoeffizienten und für den Messerhalter 15 ein Material mit einem hohen Wärmeausdehnungskoeffizienten zu wählen. Bei der Erwärmung beim Arbeiten des Querschneiders wird durch die unterschiedliche Längenausdehnung der einzelnen Bauteile eine Bombage der Messerzylinder 4, 5 erreicht, so daß der zum Schneiden erforderliche Anpreßdruck der Messer 16 trotz der auftretenden Durchbiegung der Messerzylinder 4, 5 durch die Schnittkraft erhalten bleibt.The targeted choice of materials for the knife cylinder system results in high cutting quality. It is also possible to choose a material with a low coefficient of thermal expansion for the knife cylinders 4, 5, a material with a low coefficient of thermal expansion for the counterweight 17 and a material with a high coefficient of thermal expansion for the knife holder 15. When heating the cross cutter, the different lengths of the individual components result in a bombing of the knife cylinders 4, 5, so that the contact pressure of the knives 16 required for cutting is maintained by the cutting force in spite of the bending of the knife cylinders 4, 5 that occurs.

Wählt man für die Messerzylinder 4, 5 als auch die Messerhalter 15 und das Gegengewicht 17 ein Material mit einem Wärmeausdehnungskoeffizienten = 0 mm/K, d.h. keine Längenänderungen infolge von Temperaturänderungen, können an beiden Messerbalkenenden Festlager 8 verwendet werden. Auch hierdurch wird die Durchbiegung der Messerzylinder 4, 5 erheblich verringert und der erforderliche Anpreßdruck der Messer 16 für eine gute Schnittgüte bleibt erhalten.If one chooses a material with a coefficient of thermal expansion = 0 mm / K for the knife cylinders 4, 5 as well as the knife holder 15 and the counterweight 17, i.e. no length changes due to temperature changes, fixed bearings 8 can be used on both cutter bar ends. This also considerably reduces the deflection of the knife cylinders 4, 5 and the contact pressure required for the knives 16 for a good cutting quality is maintained.

Als Material für Messerzylinder, Messerhalter und Gegengewicht wird ein Faserverbundmaterial, z.B. Kohlefaserverbundmaterial, mit einem Wärmeausdehnungskoeffizienten 0 = mm/K verwendet.A fiber composite material, for example carbon fiber composite material, with a coefficient of thermal expansion of 0 = mm / K is used as the material for the knife cylinder, knife holder and counterweight.

Werden die Messerzylinder 4, 5 aus einem Material mit gleichem Wärmeausdehnungskoeffizienten, d.h. gleiche Längenänderung des oberen oder unteren Messerzylinders 4, 5 bei unterschiedlichen Temperaturen, ausgeführt, kann auf beiden Messerzylinderenden ein schräg verzahntes Zahnrad 10 eingesetzt werden, wodurch sich die Laufruhe des Messerzylindersystems erhöht, d.h. es treten keine erhöhten Durchbiegungsamplituden infolge des Abwälzvorganges der Zahnräder auf und der Anpreßdruck der Messer 16 bleibt erhalten, somit wird eine gute Schnittgüte erreicht.If the knife cylinders 4, 5 are made of a material with the same coefficient of thermal expansion, i.e. same length change of the upper or lower knife cylinder 4, 5 at different temperatures, a helical gear 10 can be used on both knife cylinder ends, which increases the smoothness of the knife cylinder system, i.e. there are no increased deflection amplitudes due to the rolling process of the gears and the contact pressure of the knives 16 is maintained, thus a good quality of cut is achieved.

Um das Massenträgheitsmoment und damit die Energieaufnahme des Messerzylindersystems noch weiter zu verringern, ist der Messerhalter 15 aus einem Faserverbundmaterial, z.B. Kohlefaserverbundmaterial, mit einer Dichte vom 1,5 km/dm³ hergestellt.In order to further reduce the moment of inertia and thus the energy consumption of the knife cylinder system, the knife holder 15 is made of a fiber composite material, e.g. Carbon fiber composite material, manufactured with a density of 1.5 km / dm³.

Nach Fig. 3 ist das Messer 16' nur an der Spitze des Messerhalters 15 ausgebildet. Es kann in einer nach außen offenen Längsausnehmung 18 vorgesehen sein. Dieses Messer 16' besteht aus einem verschleißfesten Material, vorzugsweise Stahl oder Keramik. Der Messerhalter 15 ist mittels Löcher 19 durchdringenden, nicht dargestellten Schrauben, am Messerzylinder 4, 5 befestigt. Ein solcher Messerhalter 15 mit Messer 16' setzt das Massenträgheitsmoment des Messerzylindersystems erheblich herab. Hierdurch kann die Arbeitsgeschwindigkeit erhöht und Energie eingespart werden.3, the knife 16 'is formed only at the tip of the knife holder 15. It can be provided in a longitudinal recess 18 open to the outside. This knife 16 'consists of a wear-resistant material, preferably steel or ceramic. The knife holder 15 is fastened to the knife cylinder 4, 5 by means of screws 19 penetrating holes (not shown). Such a knife holder 15 with knife 16 'significantly reduces the moment of inertia of the knife cylinder system. This increases the working speed and saves energy.

Claims (6)

Querschneider für Warenbahnen, insbesondere für eine Wellpappenbahn,
mit rohrförmigen Messerzylindern aus Faserverbundmaterial, die paarweise übereinander in einem Maschinengestell rotierbar gelagert sind,
an den Messerzylindern befestigten Messerhaltern für Messer, die längs des Umfangs der Messerzylinder schräg verlaufend angeordnet sind,
den Messerhaltern gegenüberliegenden Gegengewichten an den Messerzylindern und
miteinander kämmenden Zahnrädern an den Messerzylindern, über die die Messerzylinder antreibbar sind,
dadurch gekennzeichnet,
daß jeweils der Messerzylinder (4, 5), der Messerhalter (15) und das Gegengewicht (17) aus einem Faserverbundmaterial mit einem Wärmeausdehnungskoeffizienten nahe oder gleich 0 mm/K bestehen und
daß die Lager (7) an beiden Enden der Messerzylinder (4, 5) Festlager (8) sind.Sheeters for webs, especially for a corrugated board web,
with tubular knife cylinders made of fiber composite material, which are rotatably mounted in pairs on top of each other in a machine frame,
knife holders for knives attached to the knife cylinders, which are arranged obliquely along the circumference of the knife cylinders,
counterweights opposite the knife holders on the knife cylinders and
intermeshing gears on the knife cylinders, via which the knife cylinders can be driven,
characterized,
that each of the knife cylinder (4, 5), the knife holder (15) and the counterweight (17) consist of a fiber composite material with a coefficient of thermal expansion close to or equal to 0 mm / K and
that the bearings (7) at both ends of the knife cylinder (4, 5) are fixed bearings (8). Querschneider nach Anspruch 1,
dadurch gekennzeichnet,
daß die Zahnräder (10) an den Enden der Messerzylinder (4, 5) schrägverzahnte Zahnräder sind.Cross cutter according to claim 1,
characterized,
that the gears (10) at the ends of the knife cylinders (4, 5) are helical gears. Querschneider für Warenbahnen,
insbesondere für eine Wellpappenbahn,
mit rohrförmigen Messerzylindern aus Faserverbundmaterial, die paarweise übereinander in einem Maschinengestell rotierbar gelagert sind,
an den Messerzylindern befestigten Messerhaltern für Messer, die längs des Umfangs der Messerzylinder schräg verlaufend angeordnet sind,
den Messerhaltern gegenüberliegenden Gegengewichten an den Messerzylindern und
miteinander kämmenden Zahnrädern an den Messerzylindern, über die die Messerzylinder antreibbar sind,
dadurch gekennzeichnet,
daß die Wärmeausdehnungskoeffizienten von Messerzylindern (4, 5), Messerhaltern (15) und Gegengewicht (17) unterschiedlich bestimmt sind, derart daß die Messerzylinder im Betrieb eine solche Bombage erhalten, daß die erforderliche Schnittkraft des Messers (16) für eine gute Schnittgüte erhalten bleibt.Sheeters for webs,
especially for a corrugated cardboard web,
with tubular knife cylinders made of fiber composite material, which are rotatably mounted in pairs on top of each other in a machine frame,
knife holders for knives attached to the knife cylinders, which are arranged obliquely along the circumference of the knife cylinders,
counterweights opposite the knife holders on the knife cylinders and
intermeshing gears on the knife cylinders, via which the knife cylinders can be driven,
characterized,
that the thermal expansion coefficients of knife cylinders (4, 5), knife holders (15) and counterweight (17) are determined differently, so that the knife cylinders receive such a bomb in operation that the required cutting force of the knife (16) is maintained for a good cutting quality . Querschneider für Warenbahnen, insbesondere für eine Wellpappenbahn,
mit rohrförmigen Messerzylindern aus Faserverbundmaterial, die paarweise übereinander in einem Maschinengestell rotierbar gelagert sind,
an den Messerzylindern befestigten Messerhaltern für Messer, die längs des Umfangs der Messerzylinder schräg verlaufend angeordnet sind,
den Messerhaltern gegenüberliegenden Gegengewichten an den Messerzylindern und
miteinander kämmenden Zahnrädern an den Messerzylindern, über die die Messerzylinder antreibbar sind,
dadurch gekennzeichnet,
daß der Messerzylinder (4, 5) und das Gegengewicht (17) einen geringen Wärmeausdehnungskoeffizienten, vorzugsweise einen negativen, sowie der Messerhalter (15) mit Messer (16) einen hohen Wärmeausdehnungskoeffizienten besitzt, so daß Spannungen ähnlich denen des Spannbetons erzeugt werden.Sheeters for webs, especially for a corrugated board web,
with tubular knife cylinders made of fiber composite material, which are rotatably mounted in pairs on top of each other in a machine frame,
knife holders for knives attached to the knife cylinders, which are arranged obliquely along the circumference of the knife cylinders,
counterweights opposite the knife holders on the knife cylinders and
intermeshing gears on the knife cylinders, via which the knife cylinders can be driven,
characterized,
that the knife cylinder (4, 5) and the counterweight (17) has a low coefficient of thermal expansion, preferably a negative one, and the knife holder (15) with knife (16) has a high coefficient of thermal expansion, so that stresses similar to those of the prestressed concrete are generated. Querschneider nach Anspruch 3,
dadurch gekennzeichnet,
daß Messerzylinder (4, 5), Messerhalter (15) aus einem Faserverbundmaterial, das Gegengewicht (17) aus Metall ausgebildet ist.Cross cutter according to claim 3,
characterized,
that knife cylinder (4, 5), knife holder (15) made of a fiber composite material, the counterweight (17) is made of metal. Querschneider nach Anspruch 1, 3 oder 4,
dadurch gekennzeichnet,
daß der Messerhalter (15) aus Verbundfasermaterial nur an der Spitze ein Messer (16') aufweist, welches aus Stahl oder Keramik ist.Cross cutter according to claim 1, 3 or 4,
characterized,
that the knife holder (15) made of composite fiber material only has a knife (16 ') at the tip, which is made of steel or ceramic.
EP93117338A 1992-11-30 1993-10-26 Transverse cutter for web material, particularly for carton web Expired - Lifetime EP0600220B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4240232A DE4240232C2 (en) 1992-11-30 1992-11-30 Sheeters for webs, in particular for a corrugated board web
DE4240232 1992-11-30

Publications (2)

Publication Number Publication Date
EP0600220A1 true EP0600220A1 (en) 1994-06-08
EP0600220B1 EP0600220B1 (en) 1996-03-06

Family

ID=6474006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117338A Expired - Lifetime EP0600220B1 (en) 1992-11-30 1993-10-26 Transverse cutter for web material, particularly for carton web

Country Status (3)

Country Link
US (1) US6065382A (en)
EP (1) EP0600220B1 (en)
DE (2) DE4240232C2 (en)

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NL9401592A (en) * 1994-09-29 1996-05-01 A K Van Der Wijngaart Beheer B Cutter blade
EP0960702A2 (en) * 1998-05-28 1999-12-01 Firma Carl Freudenberg Knife holder for transverse cutters
CN107443454A (en) * 2016-03-31 2017-12-08 株式会社Lg化学 Topping machanism and the beveler including the topping machanism

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DE19620663A1 (en) * 1996-05-22 1997-11-27 Bhs Corr Masch & Anlagenbau Sheeter for a web, in particular corrugated board
DE19723513A1 (en) * 1997-06-05 1998-12-10 Jagenberg Papiertech Gmbh Knife drum for machines for cross cutting material webs
DE19726993A1 (en) * 1997-06-25 1999-01-07 Jagenberg Papiertech Gmbh Material web especially paper or cardboard, cross cutting machine drum
DE19848973A1 (en) * 1998-10-23 2000-04-27 Bielomatik Leuze & Co Sheeter for web materials
DE19930480A1 (en) * 1999-07-01 2001-01-11 Roland Man Druckmasch Printing machine cylinder used for a rotary printing press consists of a cylinder body made of a metallic material with a specified linear expansion coefficient
AU2002357824A1 (en) 2001-12-13 2003-06-30 John R. Buta Helical rotary drum shears
DE102006042331A1 (en) * 2005-10-22 2007-05-03 Neubauer, Kai, Dipl.-Ing. Cutting knife for separation of web material, has peripheral arranged cutting edge wherein each cutting edge is arranged at distance to cylinder axis and in relative position intersecting with cylinder axis at an angle
JP5013799B2 (en) * 2006-09-27 2012-08-29 三菱重工印刷紙工機械株式会社 Knife cylinder, rotary cutter, and knife mounting method
DE102007052586A1 (en) * 2007-11-03 2009-05-07 Schmidt & Heinzmann Gmbh & Co. Kg cutter

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EP0960702A2 (en) * 1998-05-28 1999-12-01 Firma Carl Freudenberg Knife holder for transverse cutters
EP0960702A3 (en) * 1998-05-28 2002-04-17 Carl Freudenberg KG Knife holder for transverse cutters
CN107443454A (en) * 2016-03-31 2017-12-08 株式会社Lg化学 Topping machanism and the beveler including the topping machanism
US10245658B2 (en) 2016-03-31 2019-04-02 Lg Chem, Ltd. Cutting device and chamfering machine comprising the same

Also Published As

Publication number Publication date
DE59301794D1 (en) 1996-04-11
US6065382A (en) 2000-05-23
DE4240232C2 (en) 1995-04-27
DE4240232A1 (en) 1994-06-01
EP0600220B1 (en) 1996-03-06

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