EP0096223B1 - Apparatus for separating perforated tubular webs of paper - Google Patents

Apparatus for separating perforated tubular webs of paper Download PDF

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Publication number
EP0096223B1
EP0096223B1 EP83104468A EP83104468A EP0096223B1 EP 0096223 B1 EP0096223 B1 EP 0096223B1 EP 83104468 A EP83104468 A EP 83104468A EP 83104468 A EP83104468 A EP 83104468A EP 0096223 B1 EP0096223 B1 EP 0096223B1
Authority
EP
European Patent Office
Prior art keywords
paper tube
rollers
conveyor belts
drums
tube section
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
Application number
EP83104468A
Other languages
German (de)
French (fr)
Other versions
EP0096223A1 (en
Inventor
Gustav Kuckhermann
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.)
Icoma Packtechnik GmbH
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Icoma Packtechnik GmbH
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 filed Critical Icoma Packtechnik GmbH
Publication of EP0096223A1 publication Critical patent/EP0096223A1/en
Application granted granted Critical
Publication of EP0096223B1 publication Critical patent/EP0096223B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/35—Work-parting pullers [bursters]

Definitions

  • the invention relates to a separating device for separating perforated paper tube sections coming from a paper tube machine, with a preferred station with rotating conveying elements and a tear-off device, which consists of mutually opposite, mutually adjustable, circumferential tear-off elements.
  • the preferred station has preferred rollers below the paper tube and roller-shaped preferred bodies above the paper tube.
  • the preferred bodies can only press in the area of the gussets in which there is a double number of layers of paper.
  • the preferred bodies In order to prevent the paper tube section from being squeezed out, the preferred bodies must be lifted off briefly in the area of the cross bonds.
  • the preferred stations are provided several times in succession, so that the preference of the paper tube is guaranteed even when lifting.
  • the preferred bodies leave pressure marks on the paper tube and impair the quality of the paper tube, especially when processing elastic paper.
  • the tear-off devices used today have a holding cylinder and a tear-off cylinder.
  • rolls or bodies with a larger diameter than in the area of the gussets must be used in the middle between the two gussets or a second tear-off cylinder is required for the area between the two gussets. Since the bodies of the tear-off cylinders have to be pressed hard against one another for a short time, pressure points also occur on the paper tube sections at the tear-off station.
  • the invention has for its object to provide a separation device of the type mentioned so that it enables gentle treatment of the paper tube sections, is simple and less prone to failure, and when changing the paper tube formats, paper tube types and paper tube qualities none or only minor conversion work required.
  • conveyor and tear-off elements are continuous, endless conveyor belts and in that rollers or rollers of the conveyor belts on the underside of the paper tube or the paper tube section opposite the rollers or rollers on the top side thereof in the longitudinal direction of the paper tube or . of the paper tube section are offset from one another.
  • conveyor belts with mutually offset rollers allows very different paper tube formats and different types of paper tube (for example with and without gussets) and different paper qualities to be processed. While in the known devices the difference in thickness of side gusseted tubes between the edge regions and the central region always made it necessary to replace the tear-off body in the central region, such adjustment work is no longer necessary in the new device.
  • the provision of conveyor belts and the arrangement of the rollers automatically take into account the different thicknesses across the width of the paper tube section.
  • the paper tube machine shown in FIG. 1 has four unwinding stations 38, 39, 40 and 41, from the rollers of which four layers of paper are unrolled and brought together to form the tube.
  • the unrolled layers are drawn off via the loop preferred station 37 and fed to the perforating station 36.
  • the individual layers are perforated transversely to the direction of travel.
  • the individual paper webs then first pass through the cross-gluing station 35 and later through the longitudinal gluing station 34.
  • the paper tube is formed in the tube-forming device 33.
  • the paper tube formed passes through the preferred station 32 and then reaches the tear-off device 31.
  • the tear-off device 31 runs with lead opposite the preferred station 32.
  • the conveyor belts of the tear-off station are each controlled so that they grip the paper tube section 14 (see FIG. 2) vigorously and pull it forward when the perforation line between the paper tube section 14 and the paper tube 13 lies between the preferred station 32 and the tear-off device 31 . Because of the advance of the conveyor belts of the tear-off station, the tear-off takes place.
  • rollers or rollers 10 'and 11' are provided for the lower conveyor belts 4a, 5a and 6a, which press the lower conveyor belts against the paper tube 13.
  • Rolls 17 'and 18' are arranged on the top of the paper tube 13 and press the conveyor belts 4 to 6 against the paper tube 13 from above.
  • the rollers 17 'and 18' are offset from one another in the longitudinal direction with respect to the rollers 10 'and 11', ie they are not directly opposite one another.
  • the arrangement of the upper and lower rollers on a gap leads to the paper tube 13 snaking in an S-shape between the rollers. This arrangement makes it possible to transport a paper tube of different thickness over its width without having to provide spacing between the upper and lower transport elements that vary over the width.
  • the thickness compensation between the area of the thicker gussets and the middle area takes place automatically.
  • the upper and lower conveyor belts are held tensioned via the tensioning rollers or tensioning rollers 27 'and 28'.
  • the structure of the tear-off device designated overall by 31 essentially corresponds to the structure of the preferred station 32.
  • three conveyor belts 1, 2 and 3 as well as three conveyor belts 1a, 2a and 3a are provided side by side on the underside.
  • the three adjacent drive rollers for the upper conveyor baths are designated 19 ', while the three-fold adjacent drive rollers for the three lower conveyor belts are also designated 20'.
  • With 25 'and 29' the tensioning rollers or tensioning rollers are designated.
  • the lower rollers 7 'and 8' press the conveyor belts 1a, 2a and 3a against the underside of the paper tube section 14, while the rollers 15 'and 16' press the upper conveyor belts 1, 2 and 3 against the top side of the paper tube section 14.
  • the point of separation between the paper tube 13 and the paper tube section is designated by 48.
  • the deflection rollers for the upper conveyor belts 1 to 3 are each designated 46 'and the lower deflection rollers 47'.
  • two adjacent conveyor belts 4 'and 5' are provided on the top and two adjacent conveyor belts 4a 'and 5a' on the underside.
  • the two upper, adjacent conveyor belts are designated 1 'and 2', while the two lower adjacent conveyor belts are designated 1 a 'and 2a'.
  • the conveyor belts 4 'and 5' as well as 4a 'and 5a' always grip strongly on the paper tube 13 and pull it forward.
  • the height of the rollers 17 and 18 can be adjusted via the adjusting device 42. It is also possible to adjust the deflection rollers 44 and 45 in the longitudinal direction and to adjust the tensioning rollers or tensioning rollers 27 and 28 transversely to the longitudinal direction.
  • a corresponding construction is provided in the tear-off device 31, in which the rollers 15 and 16 can be adjusted by means of the adjusting device 30.
  • the tensioning rollers 25 and 26 are adjustable transversely to the conveying direction and the deflection rollers 46 and 47 are adjustable in the longitudinal direction of the hose.
  • the rollers 7, 8 and 9 are seated in a carrier 24 which is displaceable transversely to the conveying direction.
  • the carrier 24 is displaceably mounted transversely to the hose plane and carries a roller 29 at its lower end.
  • the roller 29 runs on a disc with an eccentric 23.
  • the rotary movement of the disc with eccentric 23 is coupled to the feed of the paper tube in such a way that the carrier is lifted and thus the rollers 7 to 9 are moved in the direction of the opposite rollers when the perforation 48 lies between the preferred station 32 and the tear-off device 31 .
  • a common drive 49 is used to drive the drive rollers 20 and 22 rotating at different speeds. It is also possible to couple the drive of the lower drive rollers with the associated upper drive rollers of the same station, i.e. 20 with 19 and 22 with 21, since it is stationary drives.

Landscapes

  • Making Paper Articles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Description

Die Erfindung betrifft eine Trenneinrichtung zum Abtrennen perforierter, von einer Papierschlauchmaschine kommender Papierschlauchabschnitte, mit einer Vorzugsstation mit umlaufenden Förderelementen und einer Abreißeinrichtung, die aus einander gegenüberliegenden, gegeneinander verstellbaren, mit Voreilung umlaufenden Abrißelementen besteht.The invention relates to a separating device for separating perforated paper tube sections coming from a paper tube machine, with a preferred station with rotating conveying elements and a tear-off device, which consists of mutually opposite, mutually adjustable, circumferential tear-off elements.

Bei den bekannten Einrichtungen dieser Art besitzt die Vorzugsstation unterhalb des Papierschlauchs Vorzugswalzen und oberhalb des Papierschlauchs rollenförmige Vorzugskörper. Bei Papierschläuchen mit Seitenfalten können die Vorzugskörper jeweils nur im Bereich der Seitenfalten, in der eine doppelt hohe Papierlagenzahl gegeben ist, drücken. Damit Querklebungen des Papierschlauchabschnitts nicht ausgequetscht werden, müssen die Vorzugskörper im Bereich der Querklebungen kurz abgehoben werden. Die Vorzugsstationen sind mehrfach hintereinander vorgesehen, damit auch beim Abheben der Vorzug des Papierschlauchs gewährleistet ist.In the known devices of this type, the preferred station has preferred rollers below the paper tube and roller-shaped preferred bodies above the paper tube. In the case of paper tubes with gussets, the preferred bodies can only press in the area of the gussets in which there is a double number of layers of paper. In order to prevent the paper tube section from being squeezed out, the preferred bodies must be lifted off briefly in the area of the cross bonds. The preferred stations are provided several times in succession, so that the preference of the paper tube is guaranteed even when lifting.

Die Vorzugskörper hinterlassen Druckstellen auf dem Papierschlauch und beeinträchtigen die Qualität des Papierschlauchs besonders dann, wenn elastische Papiere verarbeitet werden.The preferred bodies leave pressure marks on the paper tube and impair the quality of the paper tube, especially when processing elastic paper.

Die heute verwendeten Abreißeinrichtungen besitzen einen Festhaltezylinder und einen Abreißzylinder. Bei Papierschläuchen für Seitenfaltensäcke müssen im mittleren Bereich zwischen den beiden Seitenfalten Rollen oder Körper mit einem größeren Durchmesser als im Bereich der Seitenfalten eingesetzt werden oder es ist ein zweiter Abreißzylinder für den Bereich zwischen den beiden Seitenfalten erforderlich. Da die Körper der Abreißzylinder kurzzeitig hart aufeinandergepreßt werden müssen, entstehen Druckstellen auf den Papierschlauchabschnitten auch an der Abreißstation.The tear-off devices used today have a holding cylinder and a tear-off cylinder. In the case of paper tubes for gusseted bags, rolls or bodies with a larger diameter than in the area of the gussets must be used in the middle between the two gussets or a second tear-off cylinder is required for the area between the two gussets. Since the bodies of the tear-off cylinders have to be pressed hard against one another for a short time, pressure points also occur on the paper tube sections at the tear-off station.

Da an der Abreißstation die Abreißkörper kurzzeitig gegeneinander und anschließend wieder in Gegenrichtung auseinander bewegt werden müssen, ist es erforderlich, die Antriebe in aufwendiger Weise ortsveränderlich zu gestalten. Dies erfolgt gegenwärtig mit Hilfe von Kardanwellen und Kardangelenken, die den Antrieb sehrteuer machen.Since at the tear-off station the tear-off bodies have to be moved briefly against one another and then again in the opposite direction, it is necessary to make the drives movable in a complex manner. This is currently done with the help of cardan shafts and cardan joints, which make the drive very expensive.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Trenneinrichtung der eingangs erwähnten Art so auszubilden, daß sie eine schonende Behandlung der Papierschlauchabschnitte ermöglicht, einfach und wenig störanfällig aufgebaut ist, sowie bei einem Wechsel der Papierschlauchformate, Papierschlaucharten und Papierschlauchqualitäten keine oder nur geringfügige Umstellarbeiten erfordert.Based on this prior art, the invention has for its object to provide a separation device of the type mentioned so that it enables gentle treatment of the paper tube sections, is simple and less prone to failure, and when changing the paper tube formats, paper tube types and paper tube qualities none or only minor conversion work required.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß zumindest einige der Förder- und Abreißelemente umlaufende, endlose Förderbänder sind und daß Rollen oder Walzen der Förderbänder auf der Unterseite des Papierschlauchs bzw. des Papierschlauchabschnitts gegenüber den Rollen oder Walzen auf deren Oberseite in Längsrichtung des Papierschlauchs bzw. des Papierschlauchabschnitts gegeneinander versetzt sind.This object is achieved according to the invention in that at least some of the conveyor and tear-off elements are continuous, endless conveyor belts and in that rollers or rollers of the conveyor belts on the underside of the paper tube or the paper tube section opposite the rollers or rollers on the top side thereof in the longitudinal direction of the paper tube or . of the paper tube section are offset from one another.

Das Vorsehen von Förderbändern mit gegeneinander versetzten Rollen erlaubt es, daß sehr unterschiedliche Papierschlauchformate sowie unterschiedliche Papierschlaucharten (beispielsweise mit und ohne Seitenfalten) sowie unterschiedliche Papierqualitäten verarbeitet werden können. Während bei den bekannten Einrichtungen die Dickendifferenz bei Seitenfaltenschläuchen zwischen den Randbereichen und dem mittleren Bereich stets ein Auswechseln der Abreißkörper im mittleren Bereich erforderlich machte, sind bei der neuen Vorrichtung derartige Einstellarbeiten nicht mehr nötig. Durch das Vorsehen von Förderbändern und die Anordnung der Rollen werden die unterschiedlichen Dicken über die Breite des Papierschlauchabschnitts ohne weiteres automatisch berücksichtigt.The provision of conveyor belts with mutually offset rollers allows very different paper tube formats and different types of paper tube (for example with and without gussets) and different paper qualities to be processed. While in the known devices the difference in thickness of side gusseted tubes between the edge regions and the central region always made it necessary to replace the tear-off body in the central region, such adjustment work is no longer necessary in the new device. The provision of conveyor belts and the arrangement of the rollers automatically take into account the different thicknesses across the width of the paper tube section.

Bevorzugte Ausgestaltungen der Erfindung werden in den Unteransprüchen beschrieben.Preferred embodiments of the invention are described in the subclaims.

Nachstehend werden bevorzugte Ausführungsformen der Erfindung anhand der Zeichnung im einzelnen beschrieben. Es zeigt

  • Figur 1 eine schematische Darstellung einer Papierschlauchmaschine mit der erfindungsgemäßen Trenneinrichtung,
  • Figur 2 eine schematische Darstellung einer ersten Ausführungsform in Seitenansicht,
  • Figur 3 eine Draufsicht auf die schematisch dargestellte Anordnung gemäß Figur 2,
  • Figur 4 eine Vorderansicht gemäß Figur 2 von links,
  • Figur 5 eine zweite Ausführungsform in Seitenansicht,
  • Figur 6 die Ausführungsform gemäß Figur 5 in Draufsicht.
Preferred embodiments of the invention are described in detail below with reference to the drawing. It shows
  • FIG. 1 shows a schematic illustration of a paper tube machine with the separating device according to the invention,
  • FIG. 2 shows a schematic illustration of a first embodiment in side view,
  • FIG. 3 shows a top view of the schematically illustrated arrangement according to FIG. 2,
  • FIG. 4 shows a front view according to FIG. 2 from the left,
  • FIG. 5 shows a second embodiment in side view,
  • Figure 6 shows the embodiment of Figure 5 in plan view.

Die beiden Ausführungsformen gemäß Figuren 2 bis 4 einerseits und 5 mit 6 andererseits unterscheiden sich nicht im Prinzip sondern lediglich in konstruktiver Hinsicht. Es sind deshalb bei beiden Ausführungsformen die einander entsprechenden Teile jeweils mit gleichen Bezugszeichen versehen, zur Unterscheidung wahlweise mit Hochstrich.The two embodiments according to FIGS. 2 to 4 on the one hand and 5 with 6 on the other hand do not differ in principle but only in constructive terms. In both embodiments, the parts corresponding to one another are therefore provided with the same reference symbols, optionally with a prime to distinguish them.

Die in Figur 1 dargestellte Papierschlauchmaschine besitzt vier Abrollstationen 38, 39, 40 und 41, von deren Rollen vier Lagen Papier abgerollt und zur Bildung des Schlauchs zusammengeführt werden. Die abgerollten Lagen werden über die Schleifenvorzugsstation 37 abgezogen und der Perforierstation 36 zugeführt. In der Perforierstation 36 werden die einzelnen Lagen quer zur Laufrichtung perforiert. Danach durchlaufen die einzelnen Papierbahnen zunächst die Querklebestation 35 und später die Längsklebestation 34. In der Schlauchbildungseinrichtung 33 wird der Papierschlauch gebildet. Der gebildete Papierschlauch durchläuft die Vorzugsstation 32 und gelangt danach in die Abreißeinrichtung 31.The paper tube machine shown in FIG. 1 has four unwinding stations 38, 39, 40 and 41, from the rollers of which four layers of paper are unrolled and brought together to form the tube. The unrolled layers are drawn off via the loop preferred station 37 and fed to the perforating station 36. In the perforating station 36, the individual layers are perforated transversely to the direction of travel. The individual paper webs then first pass through the cross-gluing station 35 and later through the longitudinal gluing station 34. The paper tube is formed in the tube-forming device 33. The paper tube formed passes through the preferred station 32 and then reaches the tear-off device 31.

Die Abreißeinrichtung 31 läuft mit Voreilung gegenüber der Vorzugsstation 32. Die Förderbänder der Abreißstation werden jeweils so gesteuert, daß sie den Papierschlauchabschnitt 14 (vgl. Figur 2) taktweise kräftig ergreifen und vorziehen, wenn die Perforationslinie zwischen dem Papierschlauchabschnitt 14 und dem Papierschlauch 13 jeweils zwischen Vorzugsstation 32 und Abreißeinrichtung 31 liegt. Wegen der Voreilung der Förderbänder der Abreißstation erfolgt dabei der Abriß.The tear-off device 31 runs with lead opposite the preferred station 32. The conveyor belts of the tear-off station are each controlled so that they grip the paper tube section 14 (see FIG. 2) vigorously and pull it forward when the perforation line between the paper tube section 14 and the paper tube 13 lies between the preferred station 32 and the tear-off device 31 . Because of the advance of the conveyor belts of the tear-off station, the tear-off takes place.

Zunächst zur Ausführungsform gemäß Figuren 2 bis 4:

  • Der Papierschlauch 13 gelangt in die Vorzugsstation 32. Die Vorzugsstation 32 besitzt drei parallel zueinander angeordnete Förderbänder 4, 5 und 6 auf der Oberseite des Papierschlauchs 13 sowie drei ebenfalls nebeneinander angeordnete Förderbänder 4a, 5a und 6a auf der Unterseite des Papierschlauchs 13. Die oberen Förderbänder werden durch drei Antriebswalzen 21' angetrieben und durch drei nebeneinanderliegende Umlenkrollen 44' umgelenkt. Auf der Unterseite des Papierschlauchs 13 befinden sich drei nebeneinanderliegende Antriebswalzen 22' und drei nebeneinanderliegende Umlenkrollen 45' für die unteren Förderbänder 4a, 5a und 6a. Die Förderbänder werden über Spannrollen oder Spannwalzen 27' bzw. 28' gespannt.
First of all to the embodiment according to FIGS. 2 to 4:
  • The paper tube 13 arrives in the preferred station 32. The preferred station 32 has three conveyor belts 4, 5 and 6 arranged parallel to one another on the top of the paper tube 13 and three conveyor belts 4a, 5a and 6a also arranged next to one another on the underside of the paper tube 13. The upper conveyor belts are driven by three drive rollers 21 'and deflected by three adjacent pulleys 44'. On the underside of the paper tube 13 are three adjacent drive rollers 22 'and three adjacent deflection rollers 45' for the lower conveyor belts 4a, 5a and 6a. The conveyor belts are tensioned over tensioning rollers or tensioning rollers 27 'or 28'.

Auf der Unterseite des Papierschlauchs 13 sind für die unteren Förderbänder 4a, 5a und 6a Rollen oder Walzen 10' und 11' vorgesehen, welche die unteren Förderbänder gegen den Papierschlauch 13 drücken. Auf der Oberseite des Papierschlauchs 13 sind Rollen oder Walzen 17' und 18' angeordnet, welche die Förderbänder 4 bis 6 von oben gegen den Papierschlauch 13 drücken. Die Rollen 17' und 18' sind gegenüber den Rollen 10' und 11' in Längsrichtung gegeneinander versetzt, liegen einander also nicht unmittelbar gegenüber. Die Anordnung der oberen und unteren Rollen auf Lücke führt dazu, daß sich der Papierschlauch 13 s-förmig zwischen den Rollen hindurchschlängelt. Durch diese Anordnung ist es möglich, einen Papierschlauch von über seine Breite unterschiedlicher Dicke zu transportieren, ohne über die Breite variierende Abstände zwischen oberen und unteren Transportelementen vorsehen zu müssen. Der Dickenausgleich zwischen dem Bereich der dickeren Seitenfalten und dem mittleren Bereich erfolgt selbsttätig.On the underside of the paper tube 13, rollers or rollers 10 'and 11' are provided for the lower conveyor belts 4a, 5a and 6a, which press the lower conveyor belts against the paper tube 13. Rolls 17 'and 18' are arranged on the top of the paper tube 13 and press the conveyor belts 4 to 6 against the paper tube 13 from above. The rollers 17 'and 18' are offset from one another in the longitudinal direction with respect to the rollers 10 'and 11', ie they are not directly opposite one another. The arrangement of the upper and lower rollers on a gap leads to the paper tube 13 snaking in an S-shape between the rollers. This arrangement makes it possible to transport a paper tube of different thickness over its width without having to provide spacing between the upper and lower transport elements that vary over the width. The thickness compensation between the area of the thicker gussets and the middle area takes place automatically.

Über die Spannrollen oder Spannwalzen 27' und 28' werden die oberen und unteren Förderbänder gespannt gehalten.The upper and lower conveyor belts are held tensioned via the tensioning rollers or tensioning rollers 27 'and 28'.

Der Aufbau der mit 31 insgesamt bezeichneten Abreißeinrichtung entspricht im wesentlichen dem Aufbau der Vorzugsstation 32.The structure of the tear-off device designated overall by 31 essentially corresponds to the structure of the preferred station 32.

Bei der Abreißeinrichtung 31 sind auf der Oberseite drei Förderbänder 1, 2 und 3 sowie auf der Unterseite drei Förderbänder 1a, 2a und 3a nebeneinander vorgesehen. Die drei nebeneinanderliegenden Antriebswalzen für die oberen Förderbäder sind mit 19' bezeichnet, während die ebenfalls dreifach vorgesehenen nebeneinanderliegenden Antriebswalzen für die drei unteren Förderbänder mit 20' bezeichnet sind. Mit 25' und 29' sind die Spannrollen oder Spannwalzen bezeichnet. Die unteren Rollen 7' und 8' drükken die Förderbänder 1a, 2a und 3a gegen die Unterseite des Papierschlauchabschnitts 14 während die Rollen oder Walzen 15' und 16' die oberen Förderbänder 1, 2 und 3 gegen die Oberseite des Papierschlauchabschnitts 14 drücken. Die Trennstelle zwischen dem Papierschlauch 13 und dem Papierschlauchabschnitt ist mit 48 bezeichnet. Die Umlenkrollen für die oberen Förderbänder 1 bis 3 sind jeweils mit 46' und die unteren Umlenkrollen mit 47' bezeichnet.In the tear-off device 31, three conveyor belts 1, 2 and 3 as well as three conveyor belts 1a, 2a and 3a are provided side by side on the underside. The three adjacent drive rollers for the upper conveyor baths are designated 19 ', while the three-fold adjacent drive rollers for the three lower conveyor belts are also designated 20'. With 25 'and 29' the tensioning rollers or tensioning rollers are designated. The lower rollers 7 'and 8' press the conveyor belts 1a, 2a and 3a against the underside of the paper tube section 14, while the rollers 15 'and 16' press the upper conveyor belts 1, 2 and 3 against the top side of the paper tube section 14. The point of separation between the paper tube 13 and the paper tube section is designated by 48. The deflection rollers for the upper conveyor belts 1 to 3 are each designated 46 'and the lower deflection rollers 47'.

Die Wirkungsweise der Trenneinrichtung läßt sich am besten anhand des konstruktiven Ausführungsbeispiels gemäß Figur 6 erläutern:

  • Bei der Ausführungsform gemäß Figur 6 sind die einander entsprechenden Teile jeweils mit gleichen Bezugszeichen bezeichnet. Bei dieser Ausführungsform sind jeweils nur zwei Förderbänder auf Ober- und Unterseite sowohl der Vorzugsstation als auch der Abreißeinrichtung vorgesehen. Die unteren Förderbänder laufen über jeweils drei zwischen den Antriebswalzen und den Umlenkrollen angeordnete Rollen.
The mode of operation of the separating device can best be explained on the basis of the constructive exemplary embodiment according to FIG. 6:
  • In the embodiment according to FIG. 6, the parts which correspond to one another are each identified by the same reference symbols. In this embodiment, only two conveyor belts are provided on the top and bottom of both the preferred station and the tear-off device. The lower conveyor belts each run over three rollers arranged between the drive rollers and the deflection rollers.

Bei der Vorzugsstation sind auf der Oberseite zwei nebeneinanderliegende Förderbänder 4' und 5' vorgesehen sowie auf der Unterseite zwei nebeneinanderliegende Förderbänder 4a' und 5a'.In the preferred station, two adjacent conveyor belts 4 'and 5' are provided on the top and two adjacent conveyor belts 4a 'and 5a' on the underside.

Bei der Abreißeinrichtung 31 sind die beiden oberen, nebeneinanderliegenden Förderbänder mit 1' und 2' bezeichnet, während die beiden unteren nebeneinanderliegenden Förderbänder mit 1 a' und 2a' bezeichnet werden.In the tear-off device 31, the two upper, adjacent conveyor belts are designated 1 'and 2', while the two lower adjacent conveyor belts are designated 1 a 'and 2a'.

Die Förderbänder 4' und 5' sowie 4a' und 5a' greifen stets kräftig an dem Papierschlauch 13 an und ziehen ihn vor. Die Rollen 17 und 18 können über die Verstelleinrichtung 42 in der Höhe verstellt werden. Es ist ferner eine Verstellung der Umlenkrollen 44 und 45 in Längsrichtung und eine Verstellung der Spannrollen oder Spannwalzen 27 und 28 quer zur Längsrichtung möglich.The conveyor belts 4 'and 5' as well as 4a 'and 5a' always grip strongly on the paper tube 13 and pull it forward. The height of the rollers 17 and 18 can be adjusted via the adjusting device 42. It is also possible to adjust the deflection rollers 44 and 45 in the longitudinal direction and to adjust the tensioning rollers or tensioning rollers 27 and 28 transversely to the longitudinal direction.

Eine entsprechende Konstruktion ist in der Abreißeinrichtung 31 vorgesehen, bei der die Rollen 15 und 16 mittels der Verstelleinrichtung 30 einstellbar sind. Die Spannrollen 25 und 26 sind quer zur Förderrichtung verstellbar und die Umlenkrollen 46 und 47 sind in Schlauchlängsrichtung verstellbar.A corresponding construction is provided in the tear-off device 31, in which the rollers 15 and 16 can be adjusted by means of the adjusting device 30. The tensioning rollers 25 and 26 are adjustable transversely to the conveying direction and the deflection rollers 46 and 47 are adjustable in the longitudinal direction of the hose.

Die Rollen 7, 8 und 9 sitzen in einem quer zur Förderrichtung verschieblichen Träger 24. Der Träger 24 ist quer zur Schlauchebene verschieblich gelagert und trägt an seinem unteren Ende eine Rolle 29. Die Rolle 29 läuft an einer Scheibe mit Exzenter 23 ab. Die Drehbewegung der Scheibe mit Exzenter 23 ist so mit dem Vorschub des Papierschlauchs gekoppelt, daß ein Anheben des Trägers und damit ein Bewegen der Rollen 7 bis 9 in Richtung auf die gegenüberliegenden Rollen jeweils erfolgt, wenn die Perforation 48 zwischen Vorzugsstation 32 und Abreißeinrichtung 31 liegt. Durch diese Aufwärtsbewegung des Trägers 24 mit den Rollen 7 bis 9 wird der Papierschlauchabschnitt 14 kräftig zwischen den Förderbändern erfaßt. Da die Förderbänder der Abreißstation 31 mit Voreilung laufen, erfolgt ein Abriß des Papierschlauchabschnitts an der Perforationsstelle 48. Danach wird der Träger 24 sofort wieder abgesenkt und der Papierschlauchabschnitt nach links weitertransportiert. Bei der dargestellten Ausführungsform dient ein gemeinsamer Antrieb 49 zum Antrieb der mit unterschiedlichen Drehzahlen umlaufenden Antriebswalzen 20 und 22. Es ist auch möglich, den Antrieb der jeweils unteren Antriebswalzen mit den zugehörigen oberen Antriebswalzen der gleichen Station zu koppeln, also 20 mit 19 und 22 mit 21, da es sich um ortsfeste Antriebe handelt.The rollers 7, 8 and 9 are seated in a carrier 24 which is displaceable transversely to the conveying direction. The carrier 24 is displaceably mounted transversely to the hose plane and carries a roller 29 at its lower end. The roller 29 runs on a disc with an eccentric 23. The rotary movement of the disc with eccentric 23 is coupled to the feed of the paper tube in such a way that the carrier is lifted and thus the rollers 7 to 9 are moved in the direction of the opposite rollers when the perforation 48 lies between the preferred station 32 and the tear-off device 31 . By this upward movement of the carrier 24 with the rollers 7 to 9, the paper tube section 14 becomes strong between the conveyor belts. Since the conveyor belts of the tear-off station 31 run forward, the paper tube section is torn off at the perforation point 48. The carrier 24 is then immediately lowered again and the paper tube section is transported further to the left. In the embodiment shown, a common drive 49 is used to drive the drive rollers 20 and 22 rotating at different speeds. It is also possible to couple the drive of the lower drive rollers with the associated upper drive rollers of the same station, i.e. 20 with 19 and 22 with 21, since it is stationary drives.

Claims (5)

1. Parting device for severing perforated paper tube sections (14) coming from a paper tube machine, having an initial draw station (32) with rotating conveyance elements and a tearing-off device (31) which consists of thearing-off elements which are located opposite one another, are adjustable relative to one another and rotate at an accelerated speed, characterised in that at least some of the conveyance and tearing-off elements are endless conveyor belts (1; 2; 3; 4; 5; 6; 1 a; 2a; 3a; 4a; 5a; 6a) and that rollers or drums (7; 8; 9; 10'; 11'; 12) of the conveyor belts on the underside of the paper tube (13) or paper tube section (14), with respect to the rollers or drums (15; 16; 17; 18) on the upper side of the paper tube (13) or paper tube section (14), are offset relative to one another in the longitudinal direction of the paper tube or the paper tube section.
2. Parting device according to claim 1, characterised in that the drive rollers or drive drums (19; 20; 21; 22) of the conveyor belts (1 to 6 and 1a a to 6a) are mounted in a fixed position and that non-driven rollers or drums (7; 8; 9; 10; 11; 12; 15; 16; 17; 18), arranged between the two deflection rollers or deflection drums of the belt section, are adjustable in the direction of the paper tube (13) or paper tube section (14).
3. Parting device according to claims 1 and 2, characterised in that the non-driven rollers or drums (7; 8; 9) of the tearing-off device (31) which are arranged on one side of the paper tube section (14) are displaceable across the longitudinal plane of the paper tube section (14) by means of an eccentric (23).
4. Parting device according to one or more of claims 1 to 3, characterised in that several, non-driven rollers or drums (7; 8; 9) are each arranged in a common, eccentric-operated support (24).
5. Parting device according to one or more of claims 1 to 4, characterised in that several conveyor belts (1 to 6 and 1a to 6a) are each arranged in a distributed manner next to one another over the width of the paper tube (13) or paper tube section (14).
EP83104468A 1982-06-03 1983-05-06 Apparatus for separating perforated tubular webs of paper Expired EP0096223B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823220892 DE3220892A1 (en) 1982-06-03 1982-06-03 DISCONNECTOR FOR SEPARATING PERFORATED PAPER HOSE SECTIONS
DE3220892 1982-06-03

Publications (2)

Publication Number Publication Date
EP0096223A1 EP0096223A1 (en) 1983-12-21
EP0096223B1 true EP0096223B1 (en) 1985-12-04

Family

ID=6165195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104468A Expired EP0096223B1 (en) 1982-06-03 1983-05-06 Apparatus for separating perforated tubular webs of paper

Country Status (6)

Country Link
US (1) US4498894A (en)
EP (1) EP0096223B1 (en)
JP (1) JPS5926856A (en)
CA (1) CA1200804A (en)
DE (2) DE3220892A1 (en)
ES (1) ES8403058A1 (en)

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DE4113792A1 (en) * 1991-04-26 1992-10-29 Icoma Packtechnik Gmbh Separator for perforated tubular paper sections - has transversely displaceable rollers on both sides of tube for faster processing
DE4113792C2 (en) * 1991-04-26 1998-11-26 Icoma Fbs Gmbh Packtechnik Separating device for separating perforated paper tube sections
DE4401268A1 (en) * 1994-01-18 1995-07-20 Windmoeller & Hoelscher Method of mfg. liq. packages using flat hose web
DE4401268C2 (en) * 1994-01-18 1998-04-23 Windmoeller & Hoelscher Method and device for manufacturing packaging for liquid goods
DE10344157A1 (en) * 2003-09-22 2005-04-28 Windmoeller & Hoelscher Breakaway in a bag machine
DE10344157B4 (en) * 2003-09-22 2010-03-11 Windmöller & Hölscher Kg Breakaway in a bag machine

Also Published As

Publication number Publication date
JPS6348679B2 (en) 1988-09-30
DE3361398D1 (en) 1986-01-16
CA1200804A (en) 1986-02-18
ES522900A0 (en) 1984-03-01
JPS5926856A (en) 1984-02-13
EP0096223A1 (en) 1983-12-21
DE3220892A1 (en) 1983-12-08
ES8403058A1 (en) 1984-03-01
US4498894A (en) 1985-02-12

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