EP0238686A1 - Slitter holder - Google Patents

Slitter holder Download PDF

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Publication number
EP0238686A1
EP0238686A1 EP86104128A EP86104128A EP0238686A1 EP 0238686 A1 EP0238686 A1 EP 0238686A1 EP 86104128 A EP86104128 A EP 86104128A EP 86104128 A EP86104128 A EP 86104128A EP 0238686 A1 EP0238686 A1 EP 0238686A1
Authority
EP
European Patent Office
Prior art keywords
knife
holder
piston
lowering
circular 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.)
Granted
Application number
EP86104128A
Other languages
German (de)
French (fr)
Other versions
EP0238686B1 (en
Inventor
Johannes Häger
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.)
Dienes Werke fuer Maschinenteile GmbH and Co KG
Original Assignee
Dienes Werke fuer Maschinenteile GmbH and Co KG
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 Dienes Werke fuer Maschinenteile GmbH and Co KG filed Critical Dienes Werke fuer Maschinenteile GmbH and Co KG
Priority to EP19860104128 priority Critical patent/EP0238686B1/en
Priority to DE8686104128T priority patent/DE3673398D1/en
Publication of EP0238686A1 publication Critical patent/EP0238686A1/en
Application granted granted Critical
Publication of EP0238686B1 publication Critical patent/EP0238686B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B26D5/04—Means for moving the cutting member into its operative position for cutting by fluid pressure

Definitions

  • the invention relates to a pressure-operated scissor-cut circular knife holder, each with a piston for lowering the circular knife onto the material web to be cut and a spring-loaded piston for lateral adjustment of the circular knife to the lower knife, the parts mentioned using a holding piece with a prismatic guide along one of several knife holders Knife bars are adjustable, known for example from DE-PS 10 24 341.
  • the lowering piston rod is the guide and support element for the adjusting mechanism receiving the adjusting piston and the circular knife. Since the lowering piston thus acts as a longitudinal guide element for the adjusting mechanism, it is designed as an annular piston, so that it has a fairly large outer diameter to cope with the lowering work must have, whereby the axial installation dimension of the knife holder and thus the smallest possible cutting width adjustable between adjacent knife holders are disadvantageously increased.
  • the latter is relieved of tilting and clamping forces.
  • the lowering movement requires correspondingly less force; the lowering piston can have a smaller diameter.
  • the axis occupying the earlier place of installation of the piston rod passes through the holding piece, it is supported at its upper and lower ends, i.e. with a large support spacing in large-area dry lubrication bearings, so that the holder axis can also have a smaller diameter than the lowering piston in the known circular knife holder.
  • the circular knife holder according to the invention is correspondingly narrow in the direction of the knife axis, as a result of which cutting widths down to 25 mm can be set between adjacent knife holders according to the invention, which was impossible with the known knife holders of the generic type.
  • Another advantage of the circular knife holder according to the invention is its compatibility with known generic circular knife holders.
  • old and new knife holders on the knife bar of one and the same longitudinal cutting machine can work side by side in any pairings.
  • the holding piece can have opposite contact surfaces with threaded holes for fastening the holding piece either for right or left stop, the contact surfaces advantageously being inclined relative to one another by about 1 ° each.
  • the optimum angle of attack is inevitable each time, depending on the amount and sign, when the carrier plate is reclamped between the right and left stop.
  • the holding piece for receiving the actuating end of the piston rod can have a so-called radial elongated hole which runs in an arc shape with respect to the holder axis.
  • the inner rolling bearing ring forming the adjusting piston overlaps the adjusting cylinder, so that it also acts as a hub for receiving of the circular knife and its plate-shaped adjusting spring outer knife sleeve as well as the circular knife itself come to lie within the axial installation space for the adjusting pneumatics.
  • the holding piece 1 receives in a known manner a prismatic guide 2 for adjustment on a knife bar which is also known and is not shown and which is common to several knife holders.
  • the lowering piston 3 and its piston rod 4 are guided in the holder piece 1 in front of a holder axis 5a passing vertically therethrough, the actuating end 5 of the lowering piston rod 4 being rigidly connected to the knife-side end 6 of the holder axis 5a and to a carrier plate 7 for the adjusting mechanism 8 via an im essentially rectangular holding piece 9.
  • the receiving opening for the actuating end 5 of the lowering piston rod 4 can be designed as a radial elongated hole 13 with respect to the axis 5 a, as can be seen from FIG. 3.
  • the downward extension of the holder axis is designed as a carrier plate 14 for the adjusting mechanism 8, which also results in a small axial installation dimension in this area with sufficient rigidity. This is further reduced by the fact that the inner ring 15 of the circular knife roller bearing simultaneously forms and supports the adjusting piston and engages over the adjusting cylinder, so that the roller bodies 16 and the hub 17 forming the outer ring of the bearing and the adjusting disk spring 18 supported thereon also the circular knife 12 are accommodated in the same narrow axial installation space.
  • the axis 5 a is screwed with its underside thread 6 in the flange 9 and soldered and guided in self-lubricating bearing bushes 19 and carries at the upper end protruding from the holding piece 1 a threaded connector 20 with lock nuts 21, which enable the setting of the lowering depth.

Abstract

1. Shearing cut circular knife holder operated by pressure medium for roller cutting machines, with a piston (3) for lowering a circular knife (12), arranged in an annular manner on the knife head, onto a material path, and a spring-loaded piston for laterally adjusting the circular knife (12) onto the cutting edge of an annular associated counterknife, wherein the named parts can be adjusted by means of a holding piece (1) with a prismatic guide (2) along a knife bar and the knife head contains the adjusting piston for the circular knife (12), characterized in that in the holding piece (1) a guide rod (5a) as holding axis, traveling through the holding piece (1) vertically, and the lowering piston rod (4) with lowering piston (3) in the longitudinal direction of the knife holder, are staggered relative to one another laterally, wherein the operating end (5) of the lowering piston rod (4) and the knife-side end (6) of the guide rod (5a) are fastened to a holding piece (9) connecting these as carrier of a carrier plate (7) for the adjusting mechanism (8).

Description

Die Erfindung betrifft einen druckmittelbetätigten Scherenschnitt-Kreismesserhalter, mit je einem Kolben zum Absenken des Kreismessers auf die zu schneidende Materialbahn und einem federbelasteten Kolben zum seitlichen Anstellen des Kreismessers an das Unter­messer, wobei die genannten Teile über ein Haltestück mit einer Prismenführung längs eines mehreren Messer­haltern gemeinsamen Messerbalkens verstellbar sind, bekannt etwa aus DE-PS 10 24 341.The invention relates to a pressure-operated scissor-cut circular knife holder, each with a piston for lowering the circular knife onto the material web to be cut and a spring-loaded piston for lateral adjustment of the circular knife to the lower knife, the parts mentioned using a holding piece with a prismatic guide along one of several knife holders Knife bars are adjustable, known for example from DE-PS 10 24 341.

Beim bekannten Messerhalter dieser Gattung ist die Ab­senkkolbenstange das Führungs- und Tragelement für die den Anstellkolben und das Kreismesser aufnehmende An­stellmechanik. Da somit der Absenkkolben als Längs­führungsorgan für die Anstellmechanik wirkt, ist er als Ringkolben ausgebildet, so daß er zur Bewältigung der Absenkarbeit einen ziemlich großen Außendurchmesser haben muß, wodurch das axiale Einbaumaß des Messerhalters und damit die kleinstmögliche zwischen benachbarten Messerhaltern einstell­bare Schnittbreite nachteilig vergrößert sind.In the known knife holder of this type, the lowering piston rod is the guide and support element for the adjusting mechanism receiving the adjusting piston and the circular knife. Since the lowering piston thus acts as a longitudinal guide element for the adjusting mechanism, it is designed as an annular piston, so that it has a fairly large outer diameter to cope with the lowering work must have, whereby the axial installation dimension of the knife holder and thus the smallest possible cutting width adjustable between adjacent knife holders are disadvantageously increased.

Um einen Messerhalter der eingangs angegebenen Gattung kompakter, insbesondere mit kleinerem axialem Einbaumaß zu gestalten, wird die Kom­bination der Merkmale des Hauptanspruches vor­geschlagen.In order to make a knife holder of the type specified initially more compact, in particular with a smaller axial installation dimension, the combination of the features of the main claim is proposed.

Durch die Aufteilung der Führungsfunktion zur Halterachse und der Betätigungsfunktion zur Absenkkolbenstange wird letztere von Kipp- und Klemmkräften entlastet. Die Absenkbewegung erfordert entsprechend geringere Kraft; der Ab­senkkolben kann einen kleineren Durchmesser haben. Da die den früheren Einbauort der Kol­benstange einnehmende Achse das Haltestück durchsetzt, it sie an dessem oberen und unterem Ende gelagert, also mit großem Stütz­abstand zweckmäßig in großflächigen Trocken­schmierlagern, so daß auch die Halterachse einen geringeren Durchmesser haben kann als der Absenkkolben beim bekannten Kreismesser­halter. Entsprechend schmal baut der erfindungs­gemäße Kreismesserhalter in Richtung der Messer­achse, wodurch zwischen benachbarten erfindungs­gemäßen Messerhaltern Schnittbreiten bis herunter zu 25 mm einstellbar sind, was bei den bekannten gattungsgemäßen Messerhaltern unmöglich war.By dividing the guide function to the holder axis and the actuation function to the lowering piston rod, the latter is relieved of tilting and clamping forces. The lowering movement requires correspondingly less force; the lowering piston can have a smaller diameter. Since the axis occupying the earlier place of installation of the piston rod passes through the holding piece, it is supported at its upper and lower ends, i.e. with a large support spacing in large-area dry lubrication bearings, so that the holder axis can also have a smaller diameter than the lowering piston in the known circular knife holder. The circular knife holder according to the invention is correspondingly narrow in the direction of the knife axis, as a result of which cutting widths down to 25 mm can be set between adjacent knife holders according to the invention, which was impossible with the known knife holders of the generic type.

Ein weiterer Vorteil des erfindungsgemäßen Kreis­messerhalters besteht in seiner Kompatibilität mit bekannten gattungsgemäßen Kreismesserhaltern.Another advantage of the circular knife holder according to the invention is its compatibility with known generic circular knife holders.

Weil die Halterachse nach Lage und Richtung im Haltestück die Führungsfunktion des Absenk­kolbens mit bekannten gattungsgemäßen Messer­haltern ersetzt, können alte und neue Messer­halter auf dem Messerbalken ein und derselben Längsschneidemaschine in beliebigen Paarungen nebeneinander zusammenarbeiten.Because the holder axis replaces the guiding function of the lowering piston with known knife holders of the generic type according to position and direction in the holding piece, old and new knife holders on the knife bar of one and the same longitudinal cutting machine can work side by side in any pairings.

In Weiterbildung der Erfindung kann das Halte­stück gegenüberliegende Anlageflächen mit Ge­windelöchern zur Befestigung des Haltestücks wahlweise für Rechts- oder Linksanschlag haben, wobei die Anlageflächen vorteilhaft um je etwa 1° gegeneinander geneigt sind. Dadurch stellt sich beim Umspannen der Trägerplatte zwischen Rechts- und Linksanschlag jedesmal     nach Be­trag und Vorzeichen der optimale Anstellwinkel zwangläufig ein. Stattdessen, oder zusätzlich zur Variierung des Anstellwinkels für besondere Anwendungszwecke, kann das Haltestück zur Auf­nahme des Betätigungsendes der Kolbenstange ein gegenüber der Halterachse bogenförmig verlaufendes sogenanntes Radiallangloch haben.In a further development of the invention, the holding piece can have opposite contact surfaces with threaded holes for fastening the holding piece either for right or left stop, the contact surfaces advantageously being inclined relative to one another by about 1 ° each. As a result, the optimum angle of attack is inevitable each time, depending on the amount and sign, when the carrier plate is reclamped between the right and left stop. Instead, or in addition to varying the angle of attack for special applications, the holding piece for receiving the actuating end of the piston rod can have a so-called radial elongated hole which runs in an arc shape with respect to the holder axis.

Damit auch die Anstellmechanik im schmalen axialen Einbaumaß des erfindungsgemäßen Messerhalters bleibt, ohne auf die exakte vom Druckmittel unabhängige Einstellung der Anstellkraft zum Gegenmesser durch eine Tellerfeder verzichten zu müssen, übergreift der den Anstellkolben bildende innere Wälzlagerring den Anstellzylinder, so daß auch die     als Nabe zur Aufnahme des Kreismessers und seiner teller­förmigen Anstellfeder dienende äußere Messerbüchse sowie das Kreismesser selbst innerhalb des axialen Einbauraumes für die Anstellpneumatik zu liegen kommen.So that the adjustment mechanism remains in the narrow axial installation dimension of the knife holder according to the invention, without having to forego the exact setting of the contact force to the counter knife independent of the pressure medium by means of a plate spring, the inner rolling bearing ring forming the adjusting piston overlaps the adjusting cylinder, so that it also acts as a hub for receiving of the circular knife and its plate-shaped adjusting spring outer knife sleeve as well as the circular knife itself come to lie within the axial installation space for the adjusting pneumatics.

Die Erfindung wird anhand des in den Figuren schematisch dargestellten Ausführungsbeispiels weiter erläutert. Es zeigen:

  • Fig. 1 eine Stirnansicht, teilweise ge­schnitten, in der Ebene I/I aus Fig. 2,
  • Fig. 2 eine Seitenansicht dazu, teilweise vertikal geschnitten und
  • Fig. 3 einen Teilschnitt in der Ebene III/III aus Fig. 2.
The invention is further explained on the basis of the exemplary embodiment shown schematically in the figures. Show it:
  • 1 is an end view, partially in section, in the plane I / I of FIG. 2,
  • Fig. 2 is a side view of this, partially cut vertically and
  • 3 shows a partial section in the plane III / III from FIG. 2.

Das Haltestück 1 nimmt in bekannter Weise eine Prismenführung 2 auf zur Verstellung auf einem ebenfalls bekannten nicht dargestellten für mehrere Messerhalter gemeinsamen Messerbalken. Der Absenk­kolben 3 und seine Kolbenstange 4 sind im Halter­stück 1 vor einer dieses vertikal durchsetzenden Halterachse 5a geführt, wobei das Betätigungsende 5 der Absenkkolbenstange 4 mit dem messerseitigen Ende 6 der Halterachse 5a und mit einer Träger­platte 7 für die Anstellmechanik 8 starr ver­bunden sind über ein im wesentlichen rechteckiges Haltestück 9. Es bildet gegenüberliegende Anlage­flächen 10, 11, welche gegenüber der Ebene des Kreismessers 12 um je 1° gegensinnig geneigt und mit Gewindelöchern 13 zur Aufnahme der Träger­platte 14 für die Anstellmechanik 8 wahlweise in Rechts- oder Linksposition ausgerüstet sind.The holding piece 1 receives in a known manner a prismatic guide 2 for adjustment on a knife bar which is also known and is not shown and which is common to several knife holders. The lowering piston 3 and its piston rod 4 are guided in the holder piece 1 in front of a holder axis 5a passing vertically therethrough, the actuating end 5 of the lowering piston rod 4 being rigidly connected to the knife-side end 6 of the holder axis 5a and to a carrier plate 7 for the adjusting mechanism 8 via an im essentially rectangular holding piece 9. It forms opposite contact surfaces 10, 11, which are inclined in the opposite direction to the plane of the circular knife 12 by 1 ° each and are equipped with threaded holes 13 for receiving the carrier plate 14 for the adjusting mechanism 8 optionally in the right or left position.

Die Aufnahmeöffnung für das Betätigungsende 5 der Absenkkolbenstange 4 kann als bezüglich der Achse 5 a bogenförmiges Radiallangloch 13 ausgeführt sein, wie aus Fig. 3 ersichtlich.The receiving opening for the actuating end 5 of the lowering piston rod 4 can be designed as a radial elongated hole 13 with respect to the axis 5 a, as can be seen from FIG. 3.

Die Verlängerung der Halterachse nach unten ist als Trägerplatte 14 für die Anstellmechanik 8 ausgeführt, wodurch sich auch in diesem Be­reich bei genügender Steifigkeit ein geringes axiales Einbaumaß ergibt. Dieses wird noch wei­ter dadurch verringert, daß der Innenring 15 des Kreismesser-Wälzlagers zugleich den An­stellkolben bildet und trägt und den Anstell­zylinder übergreift, so daß auch die Wälzkörper 16 und die den Außenring des Lagers bildende Nabe 17 sowie die darauf abgestützte Anstell-­Tellerfeder 18 mit dem Kreismesser 12 im gleichen schmalen axialen Einbauraum untergebracht sind.The downward extension of the holder axis is designed as a carrier plate 14 for the adjusting mechanism 8, which also results in a small axial installation dimension in this area with sufficient rigidity. This is further reduced by the fact that the inner ring 15 of the circular knife roller bearing simultaneously forms and supports the adjusting piston and engages over the adjusting cylinder, so that the roller bodies 16 and the hub 17 forming the outer ring of the bearing and the adjusting disk spring 18 supported thereon also the circular knife 12 are accommodated in the same narrow axial installation space.

Die Achse 5 a ist mit ihrem unterseitigen Gewinde 6 im Flansch 9 verschraubt und verlötet und in selbstschmierenden Lagerbuchsen 19 geführt und trägt am oberen aus dem Haltestück 1 ragenden Ende einen Gewindestutzen 20 mit Kontermuttern 21, welche die Einstellung der Absenktiefe ermöglichen.The axis 5 a is screwed with its underside thread 6 in the flange 9 and soldered and guided in self-lubricating bearing bushes 19 and carries at the upper end protruding from the holding piece 1 a threaded connector 20 with lock nuts 21, which enable the setting of the lowering depth.

Claims (5)

1. Druckmittelbetätigter Scherenschnitt-Kreis­messerhalter mit je einem Kolben zum Ab­senken des Kreismessers auf die Material­bahn und einem federbelasteten Kolben zum seitlichen Anstellen des Kreismessers an das Untermesser, wobei die genannten Teile über ein Haltestück mit einer Prismenführung längs eines Messerbalkens verstellbar sind, dadurch gekennzeichnet, daß Absenkkolben (3) und Absenkkolbenstange (4) im Haltestück (1) vor einer dieses vertikal durchsetzenden Halterachse (5 a) geführt sind, wobei das Betätigungsende (5) der Absenkkolbenstange (4) mit dem messerseitigen Ende (6) der Halter­achse (5 a) und mit einer Trägerplatte (7) für die Anstellmechanik (8) starr verbunden sind über ein Halterstück (6).1. Pressure-operated scissors-cut circular knife holder, each with a piston for lowering the circular knife onto the material web and a spring-loaded piston for lateral adjustment of the circular knife to the lower knife, the parts mentioned being adjustable along a knife bar via a holding piece with a prismatic guide, characterized in that Lowering piston (3) and lowering piston rod (4) are guided in the holding piece (1) in front of a holder axis (5 a) which penetrates this vertically, the actuating end (5) of the lowering piston rod (4) with the knife-side end (6) of the holder axis (5 a ) and rigidly connected to a support plate (7) for the adjusting mechanism (8) via a holder piece (6). 2. Messerhalter nach Anspruch 1, dadurch gekenn­zeichnet, daß das im wesentlichen quaderförmige Halterstück (6) gegenüberliegende Anlageflächen (10, 11) mit Gewindelöchern (13) aufweist zur Befestigung der Trägerplatte (7) im Rechts- oder Linksanschlag.2. Knife holder according to claim 1, characterized in that the substantially rectangular holder piece (6) has opposite contact surfaces (10, 11) with threaded holes (13) for fastening the carrier plate (7) in the right or left stop. 3. Messerhalter nach Anspruch 2, dadurch gekenn­zeichnet, daß die Anlageflächen (10, 11) gegen­einander dachförmig geneigt sind um je etwa 1° gegenüber der Ebene des Kreismessers 12.3. Knife holder according to claim 2, characterized in that the contact surfaces (10, 11) are inclined towards each other in a roof shape by about 1 ° relative to the plane of the circular knife 12th 4. Messerhalter nach einem der vorhergehenden An­sprüche, dadurch gekennzeichnet, daß im Halter­stück (6) die Aufnahme für das Betätigungsende (5) der Absenkkolbenstange (4) als bogenförmig gegenüber der Achse (5 a) verlaufendes Lang­loch (13) ausgeführt ist.4. Knife holder according to one of the preceding claims, characterized in that in the holder piece (6) the receptacle for the actuating end (5) the lowering piston rod (4) is designed as an elongated hole (13) that runs in an arc with respect to the axis (5 a). 5. Kreismesserhalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der innere Wälzlagerring (15) für das Kreismesser (12) innenseitig den Anstellkolben (  ) bildet oder trägt und außenseitig den Anstellzylinder (  ) übergreift.5. Circular knife holder according to one of the preceding claims, characterized in that the inner roller bearing ring (15) for the circular knife (12) forms or carries the adjusting piston () on the inside and overlaps the setting cylinder () on the outside.
EP19860104128 1986-03-25 1986-03-25 Slitter holder Expired - Lifetime EP0238686B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19860104128 EP0238686B1 (en) 1986-03-25 1986-03-25 Slitter holder
DE8686104128T DE3673398D1 (en) 1986-03-25 1986-03-25 SCISSOR CIRCULAR KNIFE HOLDER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860104128 EP0238686B1 (en) 1986-03-25 1986-03-25 Slitter holder

Publications (2)

Publication Number Publication Date
EP0238686A1 true EP0238686A1 (en) 1987-09-30
EP0238686B1 EP0238686B1 (en) 1990-08-08

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EP19860104128 Expired - Lifetime EP0238686B1 (en) 1986-03-25 1986-03-25 Slitter holder

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EP (1) EP0238686B1 (en)
DE (1) DE3673398D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006215A1 (en) * 1988-12-09 1990-06-14 Werner Bonnet Perforator
EP0562454A1 (en) * 1992-03-23 1993-09-29 Elio Cavagna S.r.l. Cutting unit for cutting off material in strip form
WO1999002315A1 (en) * 1997-07-10 1999-01-21 Wilhelm Bilstein Kg Circular knife guide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634047C2 (en) * 1996-08-23 1997-12-18 Iai Ingenieurbuero Fuer Ausrue Pressurized circular knife holder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802528A (en) * 1953-11-09 1957-08-13 Dusenbery Co John Score-cut slitting mechanism
DE1024341B (en) * 1956-11-13 1958-02-13 Karl Rud Dienes Fa Pneumatically or hydraulically operated knife holder for roll cutting machines, especially paper roll cutting machines
US3185010A (en) * 1963-06-03 1965-05-25 Diamond Int Corp Slitting mechanism for endless web material
US3977284A (en) * 1973-12-06 1976-08-31 Arrow Converting Equipment, Inc. Compact slitting mechanism
EP0113668A1 (en) * 1983-01-10 1984-07-18 Elio Cavagna S.r.l. Apparatus for cutting or creasing flexible sheet material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802528A (en) * 1953-11-09 1957-08-13 Dusenbery Co John Score-cut slitting mechanism
DE1024341B (en) * 1956-11-13 1958-02-13 Karl Rud Dienes Fa Pneumatically or hydraulically operated knife holder for roll cutting machines, especially paper roll cutting machines
US3185010A (en) * 1963-06-03 1965-05-25 Diamond Int Corp Slitting mechanism for endless web material
US3977284A (en) * 1973-12-06 1976-08-31 Arrow Converting Equipment, Inc. Compact slitting mechanism
EP0113668A1 (en) * 1983-01-10 1984-07-18 Elio Cavagna S.r.l. Apparatus for cutting or creasing flexible sheet material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006215A1 (en) * 1988-12-09 1990-06-14 Werner Bonnet Perforator
US5359916A (en) * 1988-12-09 1994-11-01 Werner Bonnet Perforator
EP0562454A1 (en) * 1992-03-23 1993-09-29 Elio Cavagna S.r.l. Cutting unit for cutting off material in strip form
US5370026A (en) * 1992-03-23 1994-12-06 Elio Cavagna S.R.L. Cutting unit for cutting off material in strip form
WO1999002315A1 (en) * 1997-07-10 1999-01-21 Wilhelm Bilstein Kg Circular knife guide

Also Published As

Publication number Publication date
DE3673398D1 (en) 1990-09-13
EP0238686B1 (en) 1990-08-08

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