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EP1667914B1 - Transport and separation device in a bag machine - Google Patents

Transport and separation device in a bag machine Download PDF

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Publication number
EP1667914B1
EP1667914B1 EP04765237A EP04765237A EP1667914B1 EP 1667914 B1 EP1667914 B1 EP 1667914B1 EP 04765237 A EP04765237 A EP 04765237A EP 04765237 A EP04765237 A EP 04765237A EP 1667914 B1 EP1667914 B1 EP 1667914B1
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EP
European Patent Office
Prior art keywords
rollers
roller
tear
pair
flexible
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
EP04765237A
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German (de)
French (fr)
Other versions
EP1667914A1 (en
Inventor
Heinrich Frommeyer
Jürgen HUNEKE
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
Windmoeller and Hoelscher 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.)
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Publication of EP1667914A1 publication Critical patent/EP1667914A1/en
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Publication of EP1667914B1 publication Critical patent/EP1667914B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/12—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by tearing along perforations or lines of weakness

Definitions

  • the invention relates to a transport and separating device for transporting and separating pieces of tubing from a pre-perforated and / or precut tube, in which the demolition of the pre-perforated piece of tubing is between higher-speed demolition roller and preferred roller pairs and wherein the distance between the pair of tearing rollers Last preferred pair of rolls by a change in position of a roller is adjustable.
  • Such transport and separating devices are mainly used in bag machines use. Numerous pamphlets already deal with such paper bag machines. By way of example, DE 41 15 161 A1, DE 42 05 062 A1 and DE 25 48 161 may be mentioned. In such machines, devices are used which singulate the already precut or pre-perforated paper tube into paper tube sections. On such machines format change, that is changes in the bag height or the Textilschlauchabites made often. For this purpose, once the distance between two perforation or cut lines on the paper tube is changed. As a rule, this is done by a setting on an intended perforation or cutting cylinder. Furthermore, adjustments are made to the transport and separating device, in particular in the case of paper bag machines. With such a transport and separating device deals among other things, the DE 35 42 923 A1, wherein the issues addressed in this application questions are not illuminated. Therefore, in the present description once again the underlying state of the art.
  • the adjustment in the transport and separating device is that the distance between a Abr disclosewalzen- and at least one feed roller pair is set according to the desired section length.
  • this is done by setting the take-off rolls upstream of the tear-off roller pair in the transport direction z of the paper tube. For this purpose, at least one of the feed rollers is lifted off the paper tube section to be separated, so that there is no longer any fixation of the paper tube section between the relevant feed roller pair. Since the tear-off roller is operated at a higher circumferential speed than the feed rollers, the paper tube section is separated from the following paper tube in this way. In the case of particularly long paper tube sections, this measure not only relates to the last pair of feed rollers arranged upstream of the tear-off roller, but may relate to several of these pairs of preferred rollers. This situation is known for example from DE 43 02 567 C1.
  • the object of the present invention is to propose a transport and separating device in which can be made with less effort format changes.
  • This object is achieved in that the position of at least one tear-off or preferential roll in the transport direction z of the bag components is changeable.
  • This invention can be carried out particularly advantageously if this one roller is the last and / or the penultimate advancing roller which corresponds to the roller Abr constituwalzencru is upstream in the transport direction of the bag components. Then the distance between the last pair of advancing rollers, which actually grips the paper material, and the tear-off roller can be adjusted immediately. Due to the inventive measure can be dispensed with a variety of feed rollers. Therefore, it is particularly advantageous if a plurality of feed rollers lead a conveyor belt, which ensures that the bag material can be performed over a longer distance in the tearing without falling into gaps between rollers. Furthermore, this measure is advantageous in conjunction with an adjustability of the last or penultimate transport roller pair before the Abr constitutimate transport roller pair before the Abr constitutimate transport roller pair before the Abr constitutimate transport roller pair before the Abr constitutimate transport roller pair before
  • the use of the tear-off device according to the invention in particular in bag production, is advantageous.
  • transport and separating devices according to the invention can also be used for the demolition of pieces of hose, which are further processed for other purposes.
  • the main application location of devices according to the invention is the paper bag machines initially identified by reference to documents, which typically comprise at least one development for the paper tube material, a separating station and a bottoming and gluing station.
  • the bottoming stations of these devices typically include a bottoming cylinder.
  • the inventive feature of the transport and separating device is particularly advantageous when these machines operate in continuous operation.
  • Fig. 1 shows a transport and separating device 1 according to the invention in a sketch from the side.
  • a hose 6 is fed in the transport direction z.
  • This hose 6 first passes through a cutting unit 9, which at least partially provides the hose 6 with cuts transversely to its transport direction z.
  • the non-cut sections have typically been previously perforated, with the cuts and perforations substantially on a line P.
  • This 9 consists of the cutting roller 10, the counter-11 and the two cutting elements associated cutting blades 12, 13. By adjusting the cutting blade 13 or by the distance between two transversely to the transport direction z extending cross-sections, the length of the individual tube sections 8 and thus the Length of the later bags predetermined.
  • transport and separating device 1 consist of such a double-belt construction in which two belts each grip one side of the bag components and two such belt systems are provided in the transverse direction z of the hose 6 or hose sections 8.
  • the lower belts may also be formed as a wide belt, which then has at least the width of the largest, can be processed in the entire bag machine hose width.
  • the in the transport direction z of the bag components of the existing of the rollers 3 Abr particularlywalzencru 3 upstream take-off rollers 2a and 2b slidably mounted.
  • the take-off roll 2a is arranged so that the belt 14 no longer abuts the hose section 8 in this area.
  • In the transport direction z is formed behind the take-off roll 2b between the conveyor belt 14, 15, a funnel-shaped opening. In the area of this funnel-shaped opening of the respective tube section 8 is no longer guided by clamping. If the hose section 8 is gripped by the tear-off rollers 3 and the next perforating or cutting line P is already in the region of the funnel-shaped opening, then the hose section 8 is separated from the hose 6.
  • the take-off roller 2b is displaceable in the transport direction z.
  • the length of the funnel-shaped opening in accordance with the desired length of the hose section 8 can be adjusted so that the hose section 8 to be separated reaches the funnel-shaped section with its perforation line.
  • the region of the tube 6 directly at the perforation or cutting line P is then held almost completely by clamping between the belts 14, 15 at the moment of separation.
  • the torn-off tube section 8 acquires a certain flow due to the somewhat faster rotation of the tear-off rollers 3. In this way, the transported along its transport path 4 hose section 8 can be further processed independently of all other hose sections. Further processing usually takes place in the adjoining floor maker.
  • the take-off rolls 2a and 2b can be moved in the direction y perpendicular to the transport direction z. In this way, the entire belt transport can be adjusted to the strength of the tube 6.
  • I can advantageously move the take-off rolls 2, 2a, 2b separately for each of the previously described belt transport constructions so as to reliably and accurately process hoses having different thicknesses across their widths. Different thicknesses across the hose width come about, for example, by the need for overlap and gluing for hose formation.
  • FIG. 2 shows a tear-off unit according to the prior art.
  • a pre-perforation in a designated perforation and at least partial incision in the cutting unit 10 which again consists of the cutting roller 10, the counter 11 and the knives 12 and 13 associated with these two elements.
  • the transport along the transport path 4, wherein the representation of the bag components 6, 8 was omitted.
  • the actual transport is again through the take-off rolls 2, 2a, 2b and 2c, wherein the hose sections 8 should not be smaller than the distance between two such pairs of rollers in order to be able to transport the hose sections 8 properly.
  • the tearing of the tube section then takes place between the nip between the take-off roll 2c and the non-adjustable take-off roll 2 and the gap between the tear-off rollers 3.
  • the take-off roll 2a has to be lifted.
  • the curve packages are exchanged at format settings. This work is expensive.
  • the bag components are usually, when this device 1 is part of a bag machine, fed to a bottoming cylinder following the transport and separating device 1. As Mentioned in Fig. 2 no bag components were shown for illustrative reasons.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

The invention relates to a tear-off device (1) which is used to tear-off tubular pieces (8) from a pre-perforated tube (6), whereby the pre-perforated tubular piece (8) is torn off between pairs of tear-off roller (3) and pairs of advancing rollers (2a,2b,2c) which are operated at a high speed. The distance between the pair of tear-off rollers (3) and the last pair of advancing rollers (2,2a) can be adjusted by altering the position of a roller. The position of at least one tear-off roller (3) or advancing roller (2a,2b,2c) can be altered in the direction of transportation (z) of the bag components (6,8).

Description

Die Erfindung betrifft eine Transport- und Vereinzelungsvorrichtung zum Transportieren und Vereinzeln von Schlauchstücken von einem vorperforierten und/oder vorgeschnittenen Schlauch, bei welchem der Abriss des vorperforierten Schlauchstücks zwischen mit einer höheren Geschwindigkeit betriebenen Abrisswalzen- und Vorzugswalzenpaaren erfolgt und bei welchem der Abstand zwischen dem Abrisswalzenpaar dem letzten Vorzugswalzenpaar durch eine Positionsveränderung einer Walze einstellbar ist.The invention relates to a transport and separating device for transporting and separating pieces of tubing from a pre-perforated and / or precut tube, in which the demolition of the pre-perforated piece of tubing is between higher-speed demolition roller and preferred roller pairs and wherein the distance between the pair of tearing rollers Last preferred pair of rolls by a change in position of a roller is adjustable.

Derartige Transport- und Vereinzelungsvorrichtungen finden vor allem bei Beutelmaschinen Verwendung. Zahlreiche Druckschriften befassen sich bereits mit solchen Papierbeutelmaschinen. Beispielhaft seien die DE 41 15 161 A1, die DE 42 05 062 A1 und die DE 25 48 161 genannt. In solchen Maschinen finden Vorrichtungen Verwendung, welche den bereits vorgeschnittenen beziehungsweise vorperforierten Papierschlauch zu Papierschlauchabschnitten vereinzeln. An solchen Maschinen werden des öfteren Formatwechsel, das heißt Änderungen der Beutelhöhe beziehungsweise der Papierschlauchabschnittlänge, vorgenommen. Zu diesem Zweck wird einmal der Abstand zwischen zwei Perforations- oder Schnittlinien auf dem Papierschlauch verändert. In der Regel erfolgt dies durch eine Einstellung an einen dafür gedachten Perforations- oder Schneidzylinder. Des weiteren werden insbesondere bei Papierbeutelmaschinen Einstellungen an der Transport- und Vereinzelungsvorrichtung vorgenommen. Mit einer solchen Transport- und Vereinzelungsvorrichtung befasst sich unter anderem auch die DE 35 42 923 A1, wobei die in dieser Anmeldung behandelten Fragestellungen nicht beleuchtet werden. Daher wird in der gegenständlichen Beschreibung noch einmal auf den zugrundeliegenden Stand der Technik eingegangen.Such transport and separating devices are mainly used in bag machines use. Numerous pamphlets already deal with such paper bag machines. By way of example, DE 41 15 161 A1, DE 42 05 062 A1 and DE 25 48 161 may be mentioned. In such machines, devices are used which singulate the already precut or pre-perforated paper tube into paper tube sections. On such machines format change, that is changes in the bag height or the Papierschlauchabschnittlänge made often. For this purpose, once the distance between two perforation or cut lines on the paper tube is changed. As a rule, this is done by a setting on an intended perforation or cutting cylinder. Furthermore, adjustments are made to the transport and separating device, in particular in the case of paper bag machines. With such a transport and separating device deals among other things, the DE 35 42 923 A1, wherein the issues addressed in this application questions are not illuminated. Therefore, in the present description once again the underlying state of the art.

An dieser Stelle kann jedoch bereits ausgeführt werden, dass die Anpassung in der Transport- und Vereinzelungsvorrichtung darin besteht, dass der Abstand zwischen einem Abreißwalzen- und zumindest einem Vorzugswalzenpaar entsprechend der gewünschten Abschnittlänge eingestellt wird.At this point, however, can already be stated that the adjustment in the transport and separating device is that the distance between a Abreißwalzen- and at least one feed roller pair is set according to the desired section length.

Beim Stand der Technik geschieht das dadurch, dass die dem Abreißwalzenpaar in Transportrichtung z des Papierschlauchs vorgelagerten Vorzugswalzen eingestellt werden. Hierzu wird zumindest eine der Vorzugswalzen von dem zu vereinzelnden Papierschlauchabschnitt abgehoben, so dass keine Fixierung des Papierschlauchabschnitts zwischen dem betroffenen Vorzugswalzenpaar mehr besteht. Da die Abreißwalze mit einer höheren Umfangsgeschwindigkeit als die Vorzugswalzen betrieben wird, wird auf diese Weise der Papierschlauchabschnitt von dem nachfolgenden Papierschlauch vereinzelt. Bei besonders langen Papierschlauchabschnitten betrifft diese Maßnahme nicht nur das letzte der Abreißwalze vorgelagerte Vorzugswalzenpaar, sondern kann mehrere dieser Vorzugswalzenpaare betreffen. Dieser Sachverhalt ist beispielsweise aus der DE 43 02 567 C1 bekannt. In anderen Vorrichtungen des Standes der Technik dienen alle Vorzugswalzenpaare dem Vorzug des Papierschlauches. Das Abheben der Vorzugswalzen erfolgt dann nur zum Zeitpunkt des Bahnabrisses. Die Abhebung einer der Vorzugswalzen des Vorzugswalzenpaares geschieht über eine kurvengesteuerte Differentialverstellühg. Daher sind in der Regel bei Formatänderungen Wechsel dieser Kurven notwendig. Die zur Formatänderung notwendigen Einstellarbeiten sind aus diesem Grund aufwändig.In the prior art, this is done by setting the take-off rolls upstream of the tear-off roller pair in the transport direction z of the paper tube. For this purpose, at least one of the feed rollers is lifted off the paper tube section to be separated, so that there is no longer any fixation of the paper tube section between the relevant feed roller pair. Since the tear-off roller is operated at a higher circumferential speed than the feed rollers, the paper tube section is separated from the following paper tube in this way. In the case of particularly long paper tube sections, this measure not only relates to the last pair of feed rollers arranged upstream of the tear-off roller, but may relate to several of these pairs of preferred rollers. This situation is known for example from DE 43 02 567 C1. In other devices of the prior art, all the preferred roller pairs serve the merit of the paper tube. The lifting of the feed rollers then takes place only at the time of the web break. The withdrawal of one of the feed rollers of the feed roller pair is done via a cam-controlled Differentialverstellühg. Therefore, changing the format is usually necessary when changing the format. The adjustments necessary for the format change are complicated for this reason.

Daher besteht die Aufgabe der vorliegenden Erfindung darin, eine Transport-und Vereinzelungsvorrichtung vorzuschlagen, bei dem sich mit geringerem Aufwand Formatänderungen durchführen lassen.Therefore, the object of the present invention is to propose a transport and separating device in which can be made with less effort format changes.

Diese Aufgabe wird dadurch gelöst, dass die Position zumindest einer Abreißoder Vorzugswalze in Transportrichtung z der Beutelbestandteile veränderbar ist. Diese Erfindung ist besonders vorteilhaft ausführbar, wenn diese eine Walze die letzte und/oder die vorletzte Vorzugswalze ist, welche dem Abreißwalzenpaar in Transportrichtung der Beutelbestandteile vorgelagert ist. Dann lässt sich unmittelbar der Abstand zwischen dem letzten Vorzugswalzenpaar, welches das Papiermaterial tatsächlich greift, und der Abreißwalze einstellen. Aufgrund der erfindungsgemäßen Maßnahme kann auf eine Vielzahl von Vorzugswalzen verzichtet werden. Daher ist es besonders vorteilhaft, wenn mehrere Vorzugswalzen einen Transportriemen führen, der dafür sorgt, dass das Beutelmaterial über eine längere Strecke in dem Abreißwerk geführt werden kann, ohne in Zwischenräume zwischen Walzen zu fallen. Des weiteren ist diese Maßnahme vorteilhaft in Verbindung mit einer Verstellbarkeit des letzten oder vorletzten Transportwalzenpaares vor dem Abreißwalzenpaar, da eine Weiterverstellung in Richtung der Beutelbestandteile nicht mehr zu Lücken zwischen Walzen führen kann.This object is achieved in that the position of at least one tear-off or preferential roll in the transport direction z of the bag components is changeable. This invention can be carried out particularly advantageously if this one roller is the last and / or the penultimate advancing roller which corresponds to the roller Abreißwalzenpaar is upstream in the transport direction of the bag components. Then the distance between the last pair of advancing rollers, which actually grips the paper material, and the tear-off roller can be adjusted immediately. Due to the inventive measure can be dispensed with a variety of feed rollers. Therefore, it is particularly advantageous if a plurality of feed rollers lead a conveyor belt, which ensures that the bag material can be performed over a longer distance in the tearing without falling into gaps between rollers. Furthermore, this measure is advantageous in conjunction with an adjustability of the last or penultimate transport roller pair before the Abreißwalzenpaar, since a further adjustment in the direction of the bag components can no longer lead to gaps between rollers.

Wie eingangs erwähnt ist die Verwendung des erfindungsgemäßen Abreißwerkes, insbesondere bei der Beutelherstellung, von Vorteil. Erfindungsgemäße Transport- und Vereinzelungsvorrichtungen können jedoch auch zum Abriß von Schlauchstücken genutzt werden, die zu anderen Zwecken weiterverarbeitet werden. Als Haupteinsatzort erfindungsgemäßer Vorrichtungen empfehlen sich jedoch die eingangs anhand von Druckschriften identifizierten Papierbeutelmaschinen, welche typischerweise zumindest eine Abwicklung für das Papierschlauchmaterial, einer Vereinzelungsstation und einer Bodenbildungs- und Verleimungsstation umfassen. Die Bodenbildungsstationen dieser Vorrichtungen umfassen typischerweise einen Bodenmacherzylinder. Besonders vorteilhaft ist die erfindungsgemäße Ausprägung der Transport- und Vereinzelungsvorrichtung dann, wenn diese Maschinen in kontinuierlichem Betrieb arbeiten.As mentioned at the beginning, the use of the tear-off device according to the invention, in particular in bag production, is advantageous. However, transport and separating devices according to the invention can also be used for the demolition of pieces of hose, which are further processed for other purposes. However, the main application location of devices according to the invention is the paper bag machines initially identified by reference to documents, which typically comprise at least one development for the paper tube material, a separating station and a bottoming and gluing station. The bottoming stations of these devices typically include a bottoming cylinder. The inventive feature of the transport and separating device is particularly advantageous when these machines operate in continuous operation.

Weitere Einzelheiten und Ausführungsbeispiele der vorliegenden Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.Further details and embodiments of the present invention will become apparent from the description and the claims.

Die einzelnen Figuren zeigen:

Fig. 1
Eine Skizze einer erfindungsgemäßen Vorrichtung mit einem Transportriemen.
Fig. 2
Eine Skizze eines Abreißwerkes nach dem Stand der Technik.
The individual figures show:
Fig. 1
A sketch of a device according to the invention with a transport belt.
Fig. 2
A sketch of a Abreißwerkes according to the prior art.

Fig. 1 zeigt eine erfindungsgemäße Transport- und Vereinzelungsvorrichtung 1 in einer Skizze von der Seite. Entlang dem Transportweg 4 des Schlauches 6 respektive des Schlauchabschnitts 8 wird in der Transportrichtung z ein Schlauch 6 zugeführt. Dieser Schlauch 6 durchläuft zuerst eine Schneidwerk 9, welche den Schlauch 6 quer zu seiner Transportrichtung z zumindest teilweise mit Schnitten versehen. Die nicht mit Schnitten versehenen Abschnitte sind in der Regel bereits zuvor mit Perforationen versehen worden, wobei die Schnitte und die Perforationen im wesentlichen auf einer Linie P verlaufen. Diese 9 besteht aus der Schneidwalze 10, der Gegenlage 11 und den diesen beiden Elemente zugeordneten Schneidmessern 12, 13. Durch die Einstellung des Schneidmessers 13 beziehungsweise durch den Abstand zwischen zwei quer zur Transportrichtung z verlaufenden Querschnitten wird die Länge der einzelnen Schlauchabschnitte 8 und damit die Länge der späteren Beutel vorbestimmt. Doch zunächst wird der Schlauch 6 entlang der Transportrichtung z weiter in die Transport- und Vereinzelungsvorrichtung 1 transportiert. Er 6 erreicht dort ein Gebiet, in dem er zwischen dem oberen und unteren Transportriemen 14 und 15 eingeklemmt und von diesen transportiert wird. In der Raumrichtung x quer zur Transportrichtung z der Sackbestandteile findet sich ein weiterer, in der Zeichnung nicht sichtbarer Riemen. Alle Riemen werden von den verschiedenen Abzugswalzen 2a, 2b, 2 geführt und/oder angetrieben. In der Regel bestehen erfindungsgemäße Transport- und Vereinzelungsvorrichtung 1 aus einer solchen Doppelriemenkonstruktion, bei der jeweils zwei Riemen je eine Seite der Sackbestandteile greifen und in der quer zur Transportrichtung z des Schlauches 6 beziehungsweise der Schlauchabschnitte 8 verlaufenden Raumrichtung x zwei solche Riemensysteme vorgesehen sind. Je nach Breite des Schlauches 6 kann der Abstand der Riemenpaare in Richtung x verändert werden. Die unteren Riemen können auch als ein breiter Riemen ausgebildet werden, der dann mindestens die Breite der größten, in der gesamten Beutelmaschine verarbeitbaren Schlauchbreite aufweist.Fig. 1 shows a transport and separating device 1 according to the invention in a sketch from the side. Along the transport path 4 of the hose 6 and the hose section 8, a hose 6 is fed in the transport direction z. This hose 6 first passes through a cutting unit 9, which at least partially provides the hose 6 with cuts transversely to its transport direction z. The non-cut sections have typically been previously perforated, with the cuts and perforations substantially on a line P. This 9 consists of the cutting roller 10, the counter-11 and the two cutting elements associated cutting blades 12, 13. By adjusting the cutting blade 13 or by the distance between two transversely to the transport direction z extending cross-sections, the length of the individual tube sections 8 and thus the Length of the later bags predetermined. But first, the hose 6 is transported further along the transport direction z into the transporting and separating device 1. He 6 reaches there an area in which he is trapped between the upper and lower conveyor belt 14 and 15 and transported by them. In the spatial direction x transverse to the transport direction z of the bag components is another, not visible in the drawing belt. All belts are guided and / or driven by the various take-off rolls 2a, 2b, 2. As a rule, transport and separating device 1 according to the invention consist of such a double-belt construction in which two belts each grip one side of the bag components and two such belt systems are provided in the transverse direction z of the hose 6 or hose sections 8. Depending on the width of the tube 6, the distance of the belt pairs in the direction x can be changed. The lower belts may also be formed as a wide belt, which then has at least the width of the largest, can be processed in the entire bag machine hose width.

Die in der Transportrichtung z der Sackbestandteile dem aus den Walzen 3 bestehenden Abreißwalzenpaar 3 vorgelagerten Abzugswalzen 2a und 2b sind verschieblich gelagert. Die Abzugswalze 2a ist so angeordnet, dass der Riemen 14 in diesem Bereich nicht mehr am Schlauchabschnitt 8 anliegt. In Transportrichtung z entsteht hinter der Abzugswalze 2b zwischen den Transportriemen 14, 15 eine trichterförmige Öffnung. In dem Bereich dieser trichterförmigen Öffnung wird der betreffende Schlauchabschnitt 8 nicht mehr klemmend geführt. Wird der Schlauchabschnitt 8 von den Abreißwalzen 3 ergriffen und befindet sich die nächstfolgende Perforier- oder Schneidlinie P bereits im Bereich der trichterförmigen Öffnung, so wird der Schlauchabschnitt 8 von dem Schlauch 6 abgetrennt. Um eine zuverlässige Abtrennung des Schlauchabschnittes zu gewährleisten, ist die Abzugwalze 2b in Transportrichtung z verschiebbar. Dadurch lässt sich die Länge der trichterförmigen Öffnung gemäß der gewünschten Länge des Schlauchabschnittes 8 so einstellen, dass der abzutrennende Schlauchabschnitt 8 mit seiner Perforierlinie gerade eben den trichterförmigen Abschnitt erreicht. Der Bereich des Schlauchs 6 unmittelbar an der Perforier-oder Schneidlinie P wird dann im Moment des Abtrennens noch nahezu vollständig klemmend zwischen den Riemen 14, 15 gehalten. Der abgerissene Schlauchabschnitt 8 erlangt durch die etwas schnellere Rotation der Abreißwalzen 3 einen gewissen Vorlauf. Auf diese Weise kann der entlang seines Transportweges 4 transportierte Schlauchabschnitt 8 unabhängig von allen anderen Schlauchabschnitten weiter verarbeitet werden. Eine Weiterverarbeitung erfolgt in der Regel in dem sich anschließenden Bodenmacher.The in the transport direction z of the bag components of the existing of the rollers 3 Abreißwalzenpaar 3 upstream take-off rollers 2a and 2b slidably mounted. The take-off roll 2a is arranged so that the belt 14 no longer abuts the hose section 8 in this area. In the transport direction z is formed behind the take-off roll 2b between the conveyor belt 14, 15, a funnel-shaped opening. In the area of this funnel-shaped opening of the respective tube section 8 is no longer guided by clamping. If the hose section 8 is gripped by the tear-off rollers 3 and the next perforating or cutting line P is already in the region of the funnel-shaped opening, then the hose section 8 is separated from the hose 6. In order to ensure a reliable separation of the tube section, the take-off roller 2b is displaceable in the transport direction z. As a result, the length of the funnel-shaped opening in accordance with the desired length of the hose section 8 can be adjusted so that the hose section 8 to be separated reaches the funnel-shaped section with its perforation line. The region of the tube 6 directly at the perforation or cutting line P is then held almost completely by clamping between the belts 14, 15 at the moment of separation. The torn-off tube section 8 acquires a certain flow due to the somewhat faster rotation of the tear-off rollers 3. In this way, the transported along its transport path 4 hose section 8 can be further processed independently of all other hose sections. Further processing usually takes place in the adjoining floor maker.

Die Abzugswalzen 2a und 2b lassen sich in die Richtung y senkrecht zur Transportrichtung z verschieben. Auf diese Weise lässt sich der gesamte Riementransport auf die Stärke des Schlauches 6 einstellen. In diesem Zusammenhang ist es erwähnenswert, dass ich die Abzugswalzen 2, 2a, 2b für jede der zuvor beschriebenen Riementransportkonstruktionen vorteilhafterweise separat verschieben lassen, um so auch Schläuche, die über ihre Breite verschiedene Stärken aufweisen, zuverlässig und genau verarbeiten zu können. Verschiedene Dicken über die Schlauchbreite kommen beispielsweise durch die für Schlauchbildung notwendige Überlappung und Verklebung zustande.The take-off rolls 2a and 2b can be moved in the direction y perpendicular to the transport direction z. In this way, the entire belt transport can be adjusted to the strength of the tube 6. In this context, it is worth mentioning that I can advantageously move the take-off rolls 2, 2a, 2b separately for each of the previously described belt transport constructions so as to reliably and accurately process hoses having different thicknesses across their widths. Different thicknesses across the hose width come about, for example, by the need for overlap and gluing for hose formation.

Figur 2 zeigt ein Abreißwerk nach dem Stand der Technik. Natürlich erfolgt auch nach dem Stand der Technik eine Vorperforation in einem dafür vorgesehenen Perforationswerk und ein zumindest teilweises Einschneiden in dem Schneidwerk 10, welches wieder aus der Schneidwalze 10, der Gegenlage 11 und den diesen beiden Elementen zugeordneten Messern 12 und 13 besteht. Wieder erfolgt der Transport entlang des Transportweges 4, wobei auf die Darstellung der Beutelbestandteile 6, 8 verzichtet wurde. Der eigentliche Transport erfolgt wieder durch die Abzugswalzen 2, 2a, 2b und 2c, wobei die Schlauchabschnitte 8 nicht kleiner sein sollten als der Abstand zwischen zwei solcher Walzenpaare, um die Schlauchabschnitte 8 vernünftig transportieren zu können. Wieder ist davon auszugehen, dass in der quer zu den beiden Raumrichtungen z und y dargestellten Raumrichtung x, welche in die Zeichenebene hineinragt, noch einmal die gleiche Anordnung von Walzen vorgesehen ist, um die Beutelbestandteile an ihrer anderen Seite zu halten. Wieder erfolgt der Abriss der vorperforierten und vorgeschnittenen Schlauchabschnitte 6 dadurch, dass die Abreißwalzen 3 mit größerer Umfangsgeschwindigkeit betrieben werden. Die Einstellung der Abzugswalzen auf die beabsichtigte Schlauchabschnittslänge erfolgt jedoch dadurch, dass die einstellbaren Abzugswalzen 2a durch kurvengesteuertes Abheben Sackbestandteile freigeben. Das heißt bei sehr langen Schlauchabschnitten ist davon auszugehen, dass sowohl die Abzugswalze 2a als auch die Abzugswalze 2b angehoben werden müssen, um den Sackabschnitt rechtzeitig freizugeben. Das Abreißen des Schlauchabschnittes erfolgt dann zwischen dem Walzenspalt zwischen der Abzugswalze 2c und der nicht-einstellbaren Abzugswalze 2 sowie dem Spalt zwischen den Abreißwalzen 3. Bei kürzeren Schlauchabschnitten kann es vorkommen, dass lediglich die Abzugswalze 2a angehoben werden muss. Um die entsprechenden Änderungen in der Funktionsweise vorzunehmen, ist es notwendig, dass die Kurvenpakete bei Formateinstellungen ausgetauscht werden. Diese Arbeit ist aufwändig. Ähnlich wie bei der erfindungsgemäßen Transport- und Vereinzelungsvorrichtung 1 werden die Sackbestandteile in der Regel, wenn diese Vorrichtung 1 Bestandteil einer Beutelmaschine ist, im Anschluss an die Transport- und Vereinzelungsvorrichtung 1 einem Bodenmacherzylinder zugeführt. Wie erwähnt wurden bei Fig. 2 keine Sackbestandteile aus darstellerischen Gründen gezeigt. Bezugszeichenliste 1 Transport- und Vereinzelungsvorrichtung 2 Abzugswalze 2a Abzugswalze 2b Abzugswalze 3 Abreißwalze 4 Transportweg 5 6 Schlauch 7 8 Schlauchabschnitt 9 Schneidwerk 10 Schneidwalze 11 Gegenlage 12 Schneidmesser 13 Schneidmesser 14 Transportriemen 15 Transportriemen 16 17 A Abstand zwischen dem Walzenspalt zwischen den beiden Abreißwalzen 3 und dem Walzenspalt zwischen der verschieblichen Abzugwalze 2a und ihrer Gegenwalze 2 P Perforierlinie x Raumrichtung y Zweite, quer zur Transportrichtung verlaufende Raumrichtung z Transportrichtung FIG. 2 shows a tear-off unit according to the prior art. Of course, according to the prior art, a pre-perforation in a designated perforation and at least partial incision in the cutting unit 10, which again consists of the cutting roller 10, the counter 11 and the knives 12 and 13 associated with these two elements. Again, the transport along the transport path 4, wherein the representation of the bag components 6, 8 was omitted. The actual transport is again through the take-off rolls 2, 2a, 2b and 2c, wherein the hose sections 8 should not be smaller than the distance between two such pairs of rollers in order to be able to transport the hose sections 8 properly. Again, it can be assumed that in the spatial direction x, which is transversal to the two spatial directions z and y, which projects into the plane of the drawing, the same arrangement of rollers is again provided in order to hold the bag components on their other side. Again, the demolition of pre-perforated and precut tube sections 6 is characterized in that the tear-off rollers 3 are operated at a greater peripheral speed. The setting of the take-off rolls to the intended hose section length, however, takes place in that the adjustable take-off rolls 2a release bag components by means of cam-controlled lifting. That is, for very long hose sections, it is to be assumed that both the take-off roll 2a and the take-off roll 2b have to be lifted in order to release the bag section in good time. The tearing of the tube section then takes place between the nip between the take-off roll 2c and the non-adjustable take-off roll 2 and the gap between the tear-off rollers 3. With shorter hose sections, it may happen that only the take-off roll 2a has to be lifted. In order to make the corresponding changes in the functionality, it is necessary that the curve packages are exchanged at format settings. This work is expensive. Similar to the transport and separating device 1 according to the invention, the bag components are usually, when this device 1 is part of a bag machine, fed to a bottoming cylinder following the transport and separating device 1. As Mentioned in Fig. 2 no bag components were shown for illustrative reasons. LIST OF REFERENCE NUMBERS 1 Transport and separating device 2 off roll 2a off roll 2 B off roll 3 detaching roller 4 transport 5 6 tube 7 8th hose section 9 cutting 10 cutting roller 11 counter support 12 cutting blade 13 cutting blade 14 conveyor belts 15 conveyor belts 16 17 A Distance between the nip between the two Abreißwalzen 3 and the nip between the sliding take-off roller 2a and its counter-roller. 2 P perforating x spatial direction y Second, transverse to the transport direction spatial direction z transport direction

Claims (7)

  1. Transporting and separating arrangement (1) by means of which flexible-tube portions (8) are separated from a flexible tube (6), which has been previously perforated and/or cut along perforating or cutting lines (P), and transported away
    • in the case of which the previously perforated and/or previously cut flexible-tube portion (8) is separated between a pair of tear-off rollers (3), which are operated at relatively high speed, and one of the pairs of advancing rollers (2, 2b, 2c),
    • in the case of which (1) the flexible-tube portion (8) which is to be separated is retained with clamping action by the pair of tear-off rollers (3) and the flexible tube (6) is retained with clamping action by the pair of advancing rollers (2, 2b, 2c),
    • in the case of which (1) the spacing between the pair of tear-off rollers (3) and at least one pair of advancing rollers (2, 2a), which (2, 2a) is arranged between the pairs of rollers (3, 2, 2b) involved in the separating operation, can be adjusted by changing the position of a roller (2a), and
    • in the case of which (1) it is possible to adjust the spacing of the rollers of a pair of rollers in a direction orthogonal to the transporting direction of the flexible-tube portion,
    characterized
    in that it is possible to change the position of a tear-off (3) or advancing roller of at least one pair of rollers (3, 3; 2, 2a; 2, 2b; 2, 2c) in the transporting direction (z) of the bag parts (6, 8) in accordance with the desired length of the flexible-tube portion (8) such that the cutting or perforating line (P) has passed the advancing roller (2a, 2b, 2c) when the flexible-tube portion (8) is gripped by the tear-off roller (3), and
    in that it is possible to change the position of the tear-off or advancing roller of the at least one pair of rollers in the transporting direction (z) irrespective of the adjustment of the spacing of the rollers of the pair of rollers orthogonal to the transporting direction (z).
  2. Arrangement (1) according to Claim 1, characterized in that the at least one roller is the final advancing roller (2a) or penultimate advancing roller (2b), which is arranged upstream of the pair of tear-off rollers (3), as seen in the transporting direction (z) of the bag parts.
  3. Arrangement (1) according to one of the preceding claims, characterized in that a plurality of advancing rollers (2, 2a) guide a transporting belt (14, 15).
  4. Arrangement (1) according to Claims 2 and 3, characterized in that it is also the case that the at least one roller, which is the final advancing roller (2a) or penultimate advancing roller (2b), which is arranged upstream of the pair of tear-off rollers (3), as seen in the transporting direction (z) of the bag parts (8), and which can be adjusted in this direction (z), guides the transporting belt.
  5. Use of an arrangement (1) according to one of the preceding claims for producing paper bags.
  6. Use of an arrangement (1) according to the preceding claim, characterized in that paper bags are produced in a paper-bag machine in which at least the following operating steps necessary for producing the bag are carried out:
    • unwinding paper or flexible paper tube material
    • separating a flexible tube to form flexible-tube portions in a tear-off unit
    • forming and gluing the bag bottoms.
  7. Use of an arrangement (1) according to the preceding claim, characterized in that the paper bags are produced continuously by the paper-bag machine.
EP04765237A 2003-09-22 2004-09-15 Transport and separation device in a bag machine Expired - Lifetime EP1667914B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344157A DE10344157B4 (en) 2003-09-22 2003-09-22 Breakaway in a bag machine
PCT/EP2004/010326 WO2005032946A1 (en) 2003-09-22 2004-09-15 Transport and separation device in a bag machine

Publications (2)

Publication Number Publication Date
EP1667914A1 EP1667914A1 (en) 2006-06-14
EP1667914B1 true EP1667914B1 (en) 2007-02-21

Family

ID=34398888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765237A Expired - Lifetime EP1667914B1 (en) 2003-09-22 2004-09-15 Transport and separation device in a bag machine

Country Status (5)

Country Link
EP (1) EP1667914B1 (en)
JP (1) JP4795953B2 (en)
AT (1) ATE354523T1 (en)
DE (2) DE10344157B4 (en)
WO (1) WO2005032946A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111332748A (en) * 2020-03-20 2020-06-26 福建省明辉机械制造有限公司 Paper diaper output arrangement adjusting device

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
EP2888171A4 (en) 2012-08-21 2016-08-10 Intertape Polymer Corp Method and apparatus for changing a strip of sealed bag precursors in to open bags
US9139317B2 (en) 2012-08-21 2015-09-22 Intertape Polymer Corp. Method and apparatus for opening bags while maintaining a continuous strip of bag precursors
EP3093244B2 (en) 2015-05-13 2022-01-05 Bizerba SE & Co. KG Film transport device for a packaging machine
IT201900012426A1 (en) * 2019-07-19 2021-01-19 Tmc Spa DEVICE FOR FEEDING FILMS FOR PRODUCT PACKAGING.
TWI785887B (en) * 2021-11-11 2022-12-01 環佳科技股份有限公司 Cushion packaging material segmentation device

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DE720665C (en) * 1940-10-31 1942-05-12 Windmoeller & Hoelscher Machine for the production of flat and gusseted bags
JPS519986A (en) * 1974-07-15 1976-01-27 Om Ltd Renzokutaijobutsuno sumaitsuzuriateno hikichigirisochi
DE3220892A1 (en) * 1982-06-03 1983-12-08 Icoma Packtechnik GmbH, 7590 Achern DISCONNECTOR FOR SEPARATING PERFORATED PAPER HOSE SECTIONS
JPS61164910A (en) * 1985-01-31 1986-07-25 日本精機株式会社 Packaging machine
DE4115161A1 (en) * 1991-05-08 1992-11-12 Windmoeller & Hoelscher METHOD AND DEVICE FOR PRODUCING PAPER CARRYING BAGS
DE4302567C1 (en) * 1993-01-29 1994-03-17 Spang & Brands Maschf Separator for filled bags in filling station - has pairs of conveyor belts, overlapping on transport path with pairs of rollers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111332748A (en) * 2020-03-20 2020-06-26 福建省明辉机械制造有限公司 Paper diaper output arrangement adjusting device

Also Published As

Publication number Publication date
DE502004002989D1 (en) 2007-04-05
DE10344157B4 (en) 2010-03-11
WO2005032946A1 (en) 2005-04-14
ATE354523T1 (en) 2007-03-15
JP4795953B2 (en) 2011-10-19
EP1667914A1 (en) 2006-06-14
DE10344157A1 (en) 2005-04-28
JP2007505797A (en) 2007-03-15

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