EP0341506B1 - Apparatus for perforating paper tubes - Google Patents

Apparatus for perforating paper tubes Download PDF

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Publication number
EP0341506B1
EP0341506B1 EP89107668A EP89107668A EP0341506B1 EP 0341506 B1 EP0341506 B1 EP 0341506B1 EP 89107668 A EP89107668 A EP 89107668A EP 89107668 A EP89107668 A EP 89107668A EP 0341506 B1 EP0341506 B1 EP 0341506B1
Authority
EP
European Patent Office
Prior art keywords
perforation
distance
knife
adjustment
adjustable
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.)
Expired - Lifetime
Application number
EP89107668A
Other languages
German (de)
French (fr)
Other versions
EP0341506A2 (en
EP0341506A3 (en
Inventor
Gustav Kuckhermann
Per-Ulf Hansson
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.)
Windmoeller and Hoelscher KG
Original Assignee
Icoma Packtechnik GmbH
icoma FBS GmbH Packtechnik
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 Icoma Packtechnik GmbH, icoma FBS GmbH Packtechnik filed Critical Icoma Packtechnik GmbH
Publication of EP0341506A2 publication Critical patent/EP0341506A2/en
Publication of EP0341506A3 publication Critical patent/EP0341506A3/en
Application granted granted Critical
Publication of EP0341506B1 publication Critical patent/EP0341506B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder

Definitions

  • the invention relates to a device for perforating paper tubes formed on a paper tube machine, with a perforation knife driven in rotation around an axis of rotation via an adjustable crank which cooperates with a counter roller.
  • the invention is based on the object of designing a device of the type presumed to be known in such a way that it enables simple and quick adjustment and at the same time covers a particularly large adjustment range.
  • the distance between the perforation knife and the axis of rotation can be adjusted by means of spacers.
  • the invention combines the advantages of both known adjustment principles in a previously unknown manner without having to accept their respective disadvantages.
  • the adjustment of the distance between the perforation knife and the axis of rotation with simultaneous adjustment of the mounting of the counter-roller by the same amount only has to be carried out comparatively rarely, namely only when the areas to be covered by the crank loop mechanism have to be changed.
  • Such an adjustment of the distance between the perforation knife and the axis of rotation of the knife carrier can be accomplished even at short notice if the adjustment takes place via spacers, that is to say in one step.
  • Such a simple changeover measure makes it possible to use a paper bag machine to produce different formats even where previously two different machines were required.
  • the machine has the greatest output if the drive axis of the crank loop gearbox is aligned with the axis of rotation of the perforation knife holder is aligned. The greater the distance between these two axes, the lower the performance of the machine. The number of pieces in the extreme ranges drops to half.
  • crank loop mechanism is designed in the same way as is shown in FIGS. 1 to 3 or 1a to 3a.
  • a bearing 6 of a drive shaft 7 is arranged displaceably in the direction of the double arrow 16.
  • a crank arm 8 is connected to the drive shaft 7, on which a guide 8a is provided.
  • a slide roller 9, which is rotatably mounted on one end of a crank arm 10, is displaceable in the guide 8a.
  • the crank arm 10 is firmly seated on a shaft 13 which is mounted in lateral bearings 12.
  • the bearings 12 are seated in two stands 11 (see FIGS. 4 and 5).
  • a perforation knife 1 is seated in the knife holder 15.
  • the perforation knife 1 is designed to interact with a counter-roller 4 which is seated in lateral bearings 3.
  • the shaft 13 rotates at the same speed as the drive shaft 7.
  • the shaft 13 rotates non-uniformly. It is the two in Figure 2 Shafts 13 and 7 shifted so that during the perforation process the perforation knife 1 runs faster than with aligned shafts 13 and 7. In the setting according to FIG. 2, the perforation knife is therefore adapted to a larger section length.
  • FIGS. 4 and 5 or 4a and 5a differs from the previously described solution in the following features:
  • the radius r of the holding arms 14 for the perforation knife 1 is adjustable, as is the position of the bearing 3 of the counter-roller 4.
  • FIG. 5a shows that the radius r is enlarged compared to the radius r in FIG. 4a. This is done by a spacer 15a, which is inserted between the holding arms 14 and the knife holder 15.
  • the bearing 3 of the counter roller 4 is shifted upward by the thickness of the spacer 15a. Changing the radius r results in an additional change in the perforation area.

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)
  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Perforieren von auf einer Papierschlauchmaschine gebildeten Papierschläuchen, mit einem über eine verstellbare Kurbelschleife mit Abstand um eine Drehachse umlaufend angetriebenen Perforationsmesser, daß mit einer Gegenwalze zusammenwirkt.The invention relates to a device for perforating paper tubes formed on a paper tube machine, with a perforation knife driven in rotation around an axis of rotation via an adjustable crank which cooperates with a counter roller.

Vorrichtungen dieser Art (US-A-2778425) sind in Papiersackmaschinen vorgesehen. Sie erlauben durch eine Verstellung des Kurbelarms bei gleichgehaltener Antriebsdrehzahl der Antriebskurbel eine Veränderung der Geschwindigkeit des Perforationsmessers beim Perforieren, also beim Eintauchen in die Gegenwalze in Anpassung an unterschiedliche Perforationsabstände, welche den unterschiedlichen Sacklängen entsprechen. Der bekannte Kurbelschleifenmechanismus besitzt den Vorteil, daß eine Änderung der Perforationsabstände vergleichsweise einfach möglich ist. Nachteilig bei der bekannten Lösung ist jedoch die Tatsache, daß das Kurbelverhältnis nur innerhalb bestimmter Grenzen veränderbar ist. Dies hat zur Folge, daß bisher auf Papiersackmaschinen auf derartigen Perforationseinrichtungen nur innerhalb eines bestimmten Bereichs liegende Papiersacklängen hergestellt werden können. Des bedeutet, daß ein Hersteller von sehr unterschiedlichen Papiersacklängen zwei verschiedene Maschinen benötigt.Devices of this type (US-A-2778425) are provided in paper bag machines. By adjusting the crank arm while maintaining the drive speed of the drive crank at the same time, they allow the speed of the perforation knife to be changed during perforation, that is to say when it is immersed in the counter-roller, to adapt to different perforation distances which correspond to the different bag lengths. The known crank loop mechanism has the advantage that it is comparatively easy to change the perforation distances. A disadvantage of the known solution, however, is the fact that the crank ratio can only be changed within certain limits. The result of this is that hitherto on paper sack machines on such perforation devices only within one lengths of paper bags lying in a certain range can be produced. That means that a manufacturer of very different paper bag lengths needs two different machines.

Es ist auch bekannt, die Perforationslängen dadurch zu verändern, daß der Antrieb der Perforationsmesser für alle Formate die gleiche, gleichmäßige Antriebsgeschwindigkeit beibehält und daß der Abstand zwischen Drehachse des Perforationsmesserhaltersund der Schneide des Perforationsmessers durch unterschiedliche Distanzstücke verändert wird. Ein solches Verstellsystem, mit dem jede Formatänderung ausgeglichen bzw. eingestellt werden kann, ist sehr umständlich. In einer Papierschlauchmaschine muß eine entsprechende Durchmesserverstellung -abhängig von der Zahl der Papierlagen- unter Ümständen an mehreren Stellen vorgenommen werden. Eine Verstellung ausschließlich mit Hilfe von Distanzstücken ist in der Praxis viel zu aufwendig und ist heute nur noch bei vergleichsweise alten Maschinen üblich. Zwar erlaubt die Verstellung mit Hilfe von Beilagenstücken eine Abdeckung eines beliebigen Abstandsbereichs, wegen des damit verbundenen Aufwandes wird es bei modernen Maschinen jedoch vorgezogen, für unterschiedliche Formatbereiche unterschiedliche Maschinen anzuschaffen, trotz des damit verbundenen extrem hohen wirtschaftlichen Aufwandes.It is also known to change the perforation lengths in such a way that the drive of the perforation knives maintains the same, uniform drive speed for all formats and that the distance between the axis of rotation of the perforation knife holder and the cutting edge of the perforation knife is changed by different spacers. Such an adjustment system, with which each format change can be compensated or set, is very cumbersome. In a paper tube machine, an appropriate diameter adjustment - depending on the number of paper layers - may have to be carried out at several points. Adjustment using only spacers is far too complex in practice and is now only common with comparatively old machines. Although the adjustment with the help of inserts allows covering any distance, due to the effort involved, modern machines prefer to purchase different machines for different format ranges, despite the extremely high cost involved.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der als bekannt vorausgesetzten Art so auszubilden, daß sie eine einfache und schnelle Verstellung und gleichzeitig das Abdecken eines besonders großen Verstellbereichs ermöglicht.The invention is based on the object of designing a device of the type presumed to be known in such a way that it enables simple and quick adjustment and at the same time covers a particularly large adjustment range.

Die Lösung dieser Aufgabe erfolgt dadurch, daß bei einer Vorrichtung mit Kurbelschleife der Abstand zwischen Perforationsmesser und Drehachse und die Lagerung der Gegenwalze um jeweils gleiche Beträge verstellbar sind.This object is achieved in that, in a device with a crank loop, the distance between the perforation knife and the axis of rotation and the mounting of the counter roller are adjustable by the same amount.

Gemäß einem weiteren Vorschlag der Erfindung ist der Abstand zwischen Perforationsmesser und Drehachse mittels Distanzstücken verstellbar.According to a further proposal of the invention, the distance between the perforation knife and the axis of rotation can be adjusted by means of spacers.

Die Erfindung vereinigt in bisher unbekannter Weise die Vorteile beider bekannter Verstellprinzipien ohne deren jeweilige Nachteile in Kauf nehmen zu müssen. Das Verstellen des Abstands zwischen Perforationsmesser und Drehachse bei gleichzeitiger Verstellung der Lagerung der Gegenwalze um den gleichen Betrag muß nur vergleichsweise selten erfolgen, nämlich nur dann, wenn die vom Kurbelschleifenmechanismus abzudeckenden Bereiche gewechselt werden müssen. Eine derartige Verstellung des Abstands zwischen Perforationsmesser und Drehachse des Messerträgers läßt sich selbst dann kurzfristig bewerkstelligen, wenn die Verstellung über Distanzstücke, also in einer Stufe erfolgt. Durch eine derart einfache Umstellmaßnahme wird es möglich, mit einer Papiersackmaschine zur Herstellung unterschiedlicher Formate auch dort auszukommen, wo bisher zwei unterschiedliche Maschinen erforderlich waren.The invention combines the advantages of both known adjustment principles in a previously unknown manner without having to accept their respective disadvantages. The adjustment of the distance between the perforation knife and the axis of rotation with simultaneous adjustment of the mounting of the counter-roller by the same amount only has to be carried out comparatively rarely, namely only when the areas to be covered by the crank loop mechanism have to be changed. Such an adjustment of the distance between the perforation knife and the axis of rotation of the knife carrier can be accomplished even at short notice if the adjustment takes place via spacers, that is to say in one step. Such a simple changeover measure makes it possible to use a paper bag machine to produce different formats even where previously two different machines were required.

Die größte Leistung besitzt die Maschine, wenn die Antriebsachse des Kurbelschleifengetriebes mit der Drehachse des Perforationsmesserhalters fluchtet. Je größer der Abstand zwischen diesen beiden Achsen ist, desto geringer wird die Leistung der Maschine. Die Stückzahlen gehen in den Extrembereichen auf die Hälfte zurück.The machine has the greatest output if the drive axis of the crank loop gearbox is aligned with the axis of rotation of the perforation knife holder is aligned. The greater the distance between these two axes, the lower the performance of the machine. The number of pieces in the extreme ranges drops to half.

Indem man den unteren Bereich und den oberen Bereich überlappt, wird es möglich, in günstigen Bereichen zu fahren und den oberen Extrembereich des unteren Bereichs sowie den unteren Extrembereich des oberen Bereichs praktisch zu vermeiden.By overlapping the lower area and the upper area, it becomes possible to drive in favorable areas and practically avoid the upper extreme area of the lower area and the lower extreme area of the upper area.

Nachstehend wird die Erfindung anhand der Zeichnung im einzelnen erläutert. Es zeigen:

Figuren 1 bis 3
eine schematische Ansicht eines bekannten Kurbelschleifenantriebs in unterschiedlichen Verstellpositionen,
Figuren 1a bis 3a
Seitenansichten entsprechend den entsprechend gekennzeichneten Schnittebenen Ia-Ia, IIa-IIa bzw. IIIa-IIIa,
Figur 4
eine Darstellung der erfindungsgemäßen Vorrichtung in einer ersten Einstellposition,
Figur 4a
einen Schnitt entlang Ebene IVa-IVa,
Figur 5
die erfindungsgemäße Vorrichtung mit einem gegenüber Figur 4 vergrößerten Radius zwischen Drehachse und Perforationsmesser,
Figur 5a
einer Schnitt entlang Ebene V-V.
The invention is explained in detail below with reference to the drawing. Show it:
Figures 1 to 3
2 shows a schematic view of a known crank loop drive in different adjustment positions,
Figures 1a to 3a
Side views corresponding to the correspondingly marked cutting planes Ia-Ia, IIa-IIa or IIIa-IIIa,
Figure 4
2 shows a representation of the device according to the invention in a first setting position,
Figure 4a
a section along plane IVa-IVa,
Figure 5
the device according to the invention with a larger radius compared to Figure 4 between the axis of rotation and perforation knife,
Figure 5a
a section along plane VV.

In den Zeichnungen sind gleiche oder einander entsprechende Teile jeweils mit gleichen Bezugszeichen versehen. Bei dem in Figuren 4, 4a, 5 und 5a dargestellten Erfindungsgegenstand ist der Kurbelschleifenmechanismus in gleicher Weise ausgebildet, wie dies in Figuren 1 bis 3 bzw. 1a bis 3a dargestellt ist.In the drawings, identical or corresponding parts are provided with the same reference numerals. In the subject matter of the invention shown in FIGS. 4, 4a, 5 and 5a, the crank loop mechanism is designed in the same way as is shown in FIGS. 1 to 3 or 1a to 3a.

In einem Ständer 11 ist ein Lager 6 einer Antriebswelle 7 in Richtung des Doppelpfeils 16 verschiebbar angeordnet. Mit der Antriebswelle 7 ist eine Kurbelwange 8 verbunden, auf der eine Führung 8a vorgesehen ist. In der Führung 8a ist eine Gleitrolle 9 verschiebbar, die an einem Ende eines Kurbelarms 10 drehbar gelagert ist. Der Kurbelarm 10 sitzt fest auf einer Welle 13, die in seitlichen Lagern 12 gelagert ist. Die Lager 12 sitzen in zwei Ständern 11 (vgl. Figuren 4 und 5).In a stand 11, a bearing 6 of a drive shaft 7 is arranged displaceably in the direction of the double arrow 16. A crank arm 8 is connected to the drive shaft 7, on which a guide 8a is provided. A slide roller 9, which is rotatably mounted on one end of a crank arm 10, is displaceable in the guide 8a. The crank arm 10 is firmly seated on a shaft 13 which is mounted in lateral bearings 12. The bearings 12 are seated in two stands 11 (see FIGS. 4 and 5).

Auf der Welle 13 sind zwei mit Abstand voneinander angeordnete Haltearme 14 befestigt, an deren freien Enden ein die beiden Haltearme verbindender Messerhalter 15 sitzt. In dem Messerhalter 15 sitzt ein Perforationsmesser 1. Das Perforationsmesser 1 ist zum Zusammenwirken mit einer Gegenwalze 4 ausgebildet, die in seitlichen Lagern 3 sitzt.On the shaft 13 two spaced-apart holding arms 14 are fastened, at the free ends of which a knife holder 15 connecting the two holding arms is seated. A perforation knife 1 is seated in the knife holder 15. The perforation knife 1 is designed to interact with a counter-roller 4 which is seated in lateral bearings 3.

Bei der Einstellung gemäß Figur 1 dreht die Welle 13 mit der gleichen Drehzahl wie die Antriebswelle 7. In den beiden Verstellpositionen gemäß Figuren 2 und 3 dreht die Welle 13 ungleichförmig. Es sind bei Figur 2 die beiden Wellen 13 und 7 so verschoben, daß während des Perforationsvorgangs das Perforationsmesser 1 schneller als bei fluchtenden Wellen 13 und 7 läuft. Bei der Einstellung gemäß Figur 2 ist das Perforationsmesser also an eine größere Abschnittlänge angepaßt.1, the shaft 13 rotates at the same speed as the drive shaft 7. In the two adjustment positions according to FIGS. 2 and 3, the shaft 13 rotates non-uniformly. It is the two in Figure 2 Shafts 13 and 7 shifted so that during the perforation process the perforation knife 1 runs faster than with aligned shafts 13 and 7. In the setting according to FIG. 2, the perforation knife is therefore adapted to a larger section length.

Bei der Einstellung gemäß Figur 3 läuft das Perforationsmesser 1 im Moment der Perforation langsamer. Diese Einstellung dient also für kleinere Abschnittlängen.In the setting according to FIG. 3, the perforation knife 1 runs more slowly at the moment of the perforation. This setting is used for smaller section lengths.

Die Ausführungsform gemäß Figuren 4 und 5 bzw. 4a und 5a unterscheidet sich von der vorbeschriebenen Lösung in folgenden Merkmalen:
Der Radius r der Haltearme 14 für das Perforationsmesser 1 ist bei dieser Lösung ebenso verstellbar wie die Position der Lagerung 3 der Gegenwalze 4. In Figur 5a ist gezeigt, daß der Radius r gegenüber dem Radius r in Figur 4a vergrößert ist. Dies geschieht durch ein Distanzstück 15a, das zwischen die Haltearme 14 und dem Messerhalter 15 eingesetzt wird. Gleichzeitig ist die Lagerung 3 der Gegenwalze 4 um die Dicke des Distanzstücks 15a nach oben verschoben. Durch die Veränderung des Radius r ergibt sich also eine zusätzliche Veränderung des Perforationsbereichs.The embodiment according to FIGS. 4 and 5 or 4a and 5a differs from the previously described solution in the following features:
In this solution, the radius r of the holding arms 14 for the perforation knife 1 is adjustable, as is the position of the bearing 3 of the counter-roller 4. FIG. 5a shows that the radius r is enlarged compared to the radius r in FIG. 4a. This is done by a spacer 15a, which is inserted between the holding arms 14 and the knife holder 15. At the same time, the bearing 3 of the counter roller 4 is shifted upward by the thickness of the spacer 15a. Changing the radius r results in an additional change in the perforation area.

Claims (3)

  1. Device for perforating paper tubes formed on a paper tubing machine, with a perforation knife which is driven at a distance about a rotary axis through an adjustable crank guide and which interacts with a counter roller,
    characterised in that the distance (r) between the perforation knife (1) and rotary axis (2) and the distance between the rotary axis (2) and the bearing (3) for the counter roller (4) are each adjustable by the same amounts.
  2. Device according to claim 1,
    characterised in that the distance (r) between the perforation knife (1) and rotary axis (2) is adjustable by means of distance members (15a).
  3. Device according to claim 1 or 2
    characterised in that the bearing (3) of the counter roller (4) is adjustable by means of distance members.
EP89107668A 1988-05-10 1989-04-27 Apparatus for perforating paper tubes Expired - Lifetime EP0341506B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815943A DE3815943A1 (en) 1988-05-10 1988-05-10 DEVICE FOR PERFORATING PAPER HOSES
DE3815943 1988-05-10

Publications (3)

Publication Number Publication Date
EP0341506A2 EP0341506A2 (en) 1989-11-15
EP0341506A3 EP0341506A3 (en) 1991-06-12
EP0341506B1 true EP0341506B1 (en) 1994-05-18

Family

ID=6354070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107668A Expired - Lifetime EP0341506B1 (en) 1988-05-10 1989-04-27 Apparatus for perforating paper tubes

Country Status (4)

Country Link
EP (1) EP0341506B1 (en)
JP (1) JPH0271999A (en)
DE (2) DE3815943A1 (en)
ES (1) ES2051915T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE627356C (en) * 1934-04-10 1936-03-13 August Koenig Dr Ing Device for punching holes in running paper webs or the like.
US2778425A (en) * 1953-02-06 1957-01-22 Windmoeller & Hoelscher Apparatus for perforating sheet material
GB914289A (en) * 1959-11-23 1963-01-02 Hunter Douglas International An apparatus for forming lips in strip-like material
US3491641A (en) * 1966-11-21 1970-01-27 Edward Vandenberg Adjustable rotary knife structure
FR2315367A1 (en) * 1975-06-26 1977-01-21 Kodak Pathe IMPROVEMENTS TO TAPE PERFORATION DEVICES, ESPECIALLY PHOTOGRAPHIC AND CINEMATOGRAPHIC FILMS
DE2748820C3 (en) * 1977-10-31 1981-08-06 Windmöller & Hölscher, 4540 Lengerich Device for transversely cutting or transversely perforating material webs

Also Published As

Publication number Publication date
ES2051915T3 (en) 1994-07-01
EP0341506A2 (en) 1989-11-15
JPH0271999A (en) 1990-03-12
DE3815943A1 (en) 1989-11-23
EP0341506A3 (en) 1991-06-12
DE58907672D1 (en) 1994-06-23

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