EP1050463B1 - Tying machine for tying a stack of articles - Google Patents

Tying machine for tying a stack of articles Download PDF

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Publication number
EP1050463B1
EP1050463B1 EP00107761A EP00107761A EP1050463B1 EP 1050463 B1 EP1050463 B1 EP 1050463B1 EP 00107761 A EP00107761 A EP 00107761A EP 00107761 A EP00107761 A EP 00107761A EP 1050463 B1 EP1050463 B1 EP 1050463B1
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EP
European Patent Office
Prior art keywords
stack
strapping
products
conveyor
strapping machine
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Expired - Lifetime
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EP00107761A
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German (de)
French (fr)
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EP1050463A3 (en
EP1050463A2 (en
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SMB Schwede Maschinenbau GmbH
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SMB Schwede Maschinenbau GmbH
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Priority claimed from DE19920531A external-priority patent/DE19920531C2/en
Application filed by SMB Schwede Maschinenbau GmbH filed Critical SMB Schwede Maschinenbau GmbH
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Publication of EP1050463A3 publication Critical patent/EP1050463A3/en
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    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • 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
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles

Definitions

  • the invention relates to a strapping machine for strapping a stack of goods, in particular a magazine stack o. The like., By means of a strapping.
  • Conventional strapping machines have a work table on which a longitudinal and / or Querumreifungs noticed is arranged.
  • the latter are usually provided with a closed tape guide frame, in which the stack is retracted.
  • Llindsumreifung it is necessary to remove the standing in the transport path guide channel sections of the tape guide frame in a suitable manner from the transport path, so that the stack can be retracted along its transport path in the tape guide frame.
  • the invention has the object, a strapping machine so that a reliable and clean transport of the stack, especially in its not yet strapped state, is guaranteed.
  • control device for the defined control of the transport device with respect to the speed of the guide walls and position of the feed tabs.
  • defined control is to be understood that during the entire operation of the transport device is a monitoring of the position of the feed tabs and the speed of the guide walls. This makes it possible to operate the transport device continuously so that the stack is treated optimally. This includes, for example, that in the transfer of the stack of goods from a Ausschub adopted a positioned in front of the strapping machine according to the invention component, e.g. a packaging line, a practically “flying change" of the stack of goods in the transport device of the strapping machine can be done.
  • the guide walls can be adapted in their speed to the inlet speed of the stack. At the same time, a control can be done so that the feed tabs virtually "catch up" from the inlet side of the stack and gently drive up from behind to the stack. The latter thus experiences no shocks due to a stop on stationary guide or stop elements in the retraction of the strapping machine.
  • packet stops are provided which define the strapping position of the stack in the machine. Also in connection with these machine elements can be ensured with the help of the transport device according to the invention a gentle approach. At the same time, the feed tabs serve as a rebound-proof against a back-speeding of the stack elements caused by the packet stop.
  • the packaging line designated as a whole by 1 adjoins the crosslapper 2 of a printing line.
  • a certain number of printed products D is inserted with a first orientation of the binding margin in the stacker 2, after which the stacker 2 is rotated about a vertical axis by 180 ° and in turn the specific number of printed products in the same orientation of the binding margin are inserted.
  • the stacker 2 is rotated about a vertical axis by 180 ° and in turn the specific number of printed products in the same orientation of the binding margin are inserted.
  • it forms a stack of products in which partial stacks have an opposite orientation of the binding margin.
  • the latter has four combination components 6, 7, 8, 9, which are explained in more detail below.
  • the components 6, 7, 8, 9 have in common that they have table or cabinet-like frames 10, which form a working surface 11 with their tops. These are in turn arranged in a common conveying plane F for the magazine stack 4.
  • the combination component 6 directly adjoining the stacker 2 combines a first strapping machine 12 and a cover sheet applicator 13, which hangs a cover sheet 14 from the side onto the stack 4 retracted into the first component 6.
  • the cover sheet applicator 13 is of conventional design and therefore needs no further discussion.
  • the first strapping machine 12 is of a type that does not have any band channel portions vertically upstanding from the work surface 11. Insofar is in the Fig. 1 at a distance above the working surface 11, only one guide channel section 15 with a catching device 16 for the strapping 17 is shown. This catcher 16 is assigned as an additional tape feed device an intermediate drive 16 'for the band.
  • This type of strapping device is in the German Offenlegungsschrift DE 195 03 112 A1 or the European Patent EP 0 725 005 B1 comprehensively and extensively described in function and structure. Therefore, it should be noted here only briefly that the strap 17 is conveyed by a tape supply spool 18 in a buffer, not shown.
  • the tape is shot over a first free air gap LF1 between the working surface 11 and the catching device 16, from the latter taken up and transported in the guide channel section 15 by means of the intermediate drive 16 'in order to emerge again at the opposite end of the guide channel section 15 and to be shot down into a second catching device 19 via the second free air section LF2.
  • the belt loop is closed and separated from the incoming tape supply after the tensioning of so loosely placed around the stack 4 strapping tape.
  • the two pressing bars 20 are pressed onto the stack 4 from above, in order to keep them compacted during the strapping process taking place thereafter.
  • the two lateral guide and transport walls 21 which are designed in the manner of an endless conveyor belt and provided with feed tabs 22.
  • These feed tabs 22 run behind the maneuvered from the pusher 5 of the stacker 2 on the work surface 11 stack 4 and push it against the laterally retractable packet stop 23.
  • the feed tabs 22 and Package stop 23 run clean and can not fall over.
  • Each guide wall 21 has in each case on the inlet and outlet side with respect to the working surface 11 about a vertical axis rotatable deflection rollers 38, 39, of which in the conveying direction R front rollers 39 by a motor 41 are driven driven.
  • an endless belt 40 is pulled in each case, to each of which a single, plate-shaped feed tab 22 is attached.
  • the endless belts 40 and feed tabs 22 are so positioned and controlled driven that they synchronously - so in each handling step of the transport device at the same longitudinal position - are driven.
  • Motor 41 and controller 42 are in Fig. 2 Block diagram indicated schematically by dashed rectangles. The properties of the controller 42 with regard to the drive of the guide walls 21 and thus the feed tabs 22 have already been discussed in detail in the introduction and need not be discussed again.
  • the deflection rollers 38, 39 are further mounted on a Querverstell friendship 43, by means of which the two guide walls 21 are mounted in their lateral distance a to the work table formed from the lower frame 10 and work surface 11.
  • a Querverstell listening 43 With the help of this Querverstell listening 43, the strapping device can thus be adapted to different formats of the magazine stack 4.
  • the strapping device can thus be adapted to different formats of the magazine stack 4.
  • the guide walls 21 in the conveying direction R practically over the entire length 1 of the work surface 11 of the magazine stack 4 is guided cleanly throughout its passage through the strapping machine 12.
  • the stack 4 comes from the first combination component. 6 through the outlet conveyor belts 24 out, which is synchronized with the second combination component 7 - a Folieneintsch sensible - so that the movement of the outlet conveyor belt 24 simultaneously defines the insertion of the stack 4 in the Folieneintsch vibration 7.
  • the stack 4 moves against a "curtain" of the packaging film 25, which can thus be brought under, before, on and by a corresponding method of the upper supply roll 26 for the packaging film 25 behind the stack 4. Subsequently, the stack 4 is welded at its back by the welding bar 36 in the combination component 7. The pages remain open.
  • the welding bar 36 can run synchronously in the direction of arrow 37 with the stack 4, so that for the welding of the stack 4 does not have to be stopped.
  • the film tube formed by the packaging film 25 around the stack 4 can also be welded on the sides, the front and rear sides of the stack 4 then remaining open.
  • the wrapped stack 4 passes into the third combination component 8, which combines a side sealer 28 with a second strapping device 29.
  • Corresponding components are provided with matching, apostrophized reference numerals.
  • the side sealer 28 has welding bars 30 with spot welding units 31. Due to the arrangement of the side of the conveyor belts 34 of the functional component 8 so there is a spot welding on the sides of the packaging film. This spot welding is performed only at very low stacks. Higher stacks obtained by the strapping device 29 a Lzansumreifung after film wrapping in the functional component. 7

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Packaging Of Special Articles (AREA)

Abstract

A hoop-casing machine for hoop-casing a stack of goods, especially a stack of newspapers or similar, by means of a hoop-casi strip. The hoop-casing machine has: - a work table (10,11); - a hoop-casing device (12) located on the work table with a strip guidance element (15) that is free of guide channel sections standing upwards in the transport path of the stack of goods from the workin surface of the work table; and - a transport device serving to feed the stack of goods forwards through the hoop-casing machine is provided with conveyor belt-like guide walls flanking the stack on both sides in the transport direction, plus a feed bracket (22) for the stack of goods mounted on each.

Description

Die Erfindung betrifft eine Umreifungsmaschine zum Umreifen eines Gutstapels, insbesondere eines Zeitschriftenstapels o. dgl., mittels eines Umreifungsbandes.The invention relates to a strapping machine for strapping a stack of goods, in particular a magazine stack o. The like., By means of a strapping.

Herkömmliche Umreifungsmaschinen weisen einen Arbeitstisch auf, auf dem eine Längs- und/oder Querumreifungseinrichtung angeordnet ist. Letztere sind in der Regel mit einem geschlossenen Bandführungsrahmen versehen, in den der Gutstapel eingefahren wird. Für die Längsumreifung ist es dabei notwendig, die im Transportweg stehenden Führungskanalabschnitte des Bandführungsrahmens in geeigneter Weise aus dem Transportweg zu entfernen, damit der Gutstapel längs seines Transportweges in den Bandführungsrahmen eingefahren werden kann.Conventional strapping machines have a work table on which a longitudinal and / or Querumreifungseinrichtung is arranged. The latter are usually provided with a closed tape guide frame, in which the stack is retracted. For Längsumreifung it is necessary to remove the standing in the transport path guide channel sections of the tape guide frame in a suitable manner from the transport path, so that the stack can be retracted along its transport path in the tape guide frame.

Neben verschiedenen Klappversionen ist für diese zu entfernenden Kanalabschnitte aus der DE 195 03 112 A1 bzw. dem europäischen Patent EP 0 725 005 B1 der Anmelderin eine besonders geschickte Ausgestaltung des Bandführungsrahmens bekannt, bei dem die im Transportweg stehenden Bandführungskanalabschnitte schlicht weggelassen sind. Über diese entstandenen freien Luftstrecken wird das Umreifungsband hinweggeschossen. Parallel zur Längsrichtung wird das Band in einen der oberen horizontalen Strebe des Bandführungsrahmens entsprechenden Kanalabschnitt geführt, um anschließend wieder nach unten über die freie Luftstrecke hinweggeschossen zu werden.In addition to various folding versions is for these to be removed channel sections from the DE 195 03 112 A1 or the European Patent EP 0 725 005 B1 the Applicant a particularly skilled embodiment of the tape guide frame known in which the standing in the transport path Bandführungskanalabschnitte are simply omitted. About this resulting free air stretches the strapping tape is shot away. Parallel to the longitudinal direction, the band is guided into a channel section corresponding to the upper horizontal strut of the band guide frame, in order subsequently to be shot down again over the free air gap.

Aus der US 3,343,334 A ist eine Transporteinrichtung für Zeitschriftenstapel bekannt, die mit beiderseits den Gutstapel in Transportrichtung flankierenden, förderbandartigen Führungswänden und darin angebrachten Vorschublaschen für den Gutstapel versehen ist. Bei dieser Umreifungsmaschine wird der bereits mit einer Banderole versehene Gutschriftenstapel von oben zwischen die Führungswände abgelassen, die Transporteinrichtung muss also taktweise arbeiten, was allerdings hinsichtlich der Stapelstabilität unproblematisch ist, da der Stapel bereits gebündelt ist.From the US 3,343,334 A a transport device for magazine stack is known, which is provided with both sides of the stack in the transport direction flanking, conveyor belt-like guide walls and mounted therein feed tabs for the stack. In this strapping machine, the credit pile already provided with a banderole is discharged from above between the guide walls, the transport device must therefore work in cycles, which is unproblematic in terms of stack stability, since the stack is already bundled.

Eine besondere Problematik bei der Umreifung, insbesondere von Zeitschriftenstapeln, besteht darin, daß vor dem Umreifen des Stapels die einzelnen Exemplare des Stapels nur aufeinanderliegen und nur durch die Reibung zwischen sich ein Verrutschen und Auflösen der Stapelordnung verhindert wird. Damit muß das Einfahren des Stapels im nicht-umreiften Zustand sehr behutsam und vorsichtig mittels der im Arbeitstisch integrierten Transporteinrichtungen vonstatten gehen.A particular problem with the strapping, especially of magazine stacks, is that before strapping the stack, the individual copies of the stack only superimposed and only by the friction between them slipping and dissolving the stacking order is prevented. Thus, the retraction of the stack in the unrestrained state must go very gently and carefully by means of integrated in the work table transport facilities.

Ausgehend von dieser Problematik liegt der Erfindung die Aufgabe zugrunde, eine Umreifungsmaschine so weiterzubilden, daß ein zuverlässiger und sauberer Transport des Gutstapels, insbesondere in dessen noch nicht umreiften Zustand, gewährleistet ist.Based on this problem, the invention has the object, a strapping machine so that a reliable and clean transport of the stack, especially in its not yet strapped state, is guaranteed.

Diese Aufgabe wird durch die im Kennzeichnungsteil des Anspruches 1 angegebenen Merkmale gelöst. Die zum Vorschub des Gutstapels dienende Transporteinrichtung mit beiderseits den Gutstapel in Transportrichtung flankierenden, förderbandartigen Führungswänden und einer jeweils daran angebrachten Vorschublasche ist demnach mit einer definierten Steuerung, wie im Folgenden noch näher erläutert wird, versehen. Die Führungswände halten und führen den Gutstapel während des Transports und unterstützen gleichzeitig dessen Vorwärtsbewegung. Für den eigentlichen Vortrieb des Stapels sorgen die an den Führungswänden angebrachten Vorschublaschen, die an der entgegen der Transportrichtung weisenden Stapelfläche angreifen.This object is achieved by the features stated in the characterizing part of claim 1. Serving for advancing the stack of goods with both sides of the stack in the transport direction flanking conveyor belt-like guide walls and a respective attached feed tab is therefore provided with a defined control, as will be explained in more detail below. The guide walls hold and guide the stack during transport while supporting its forward movement. The actual advancement of the stack is ensured by the feed tabs attached to the guide walls, which engage the stacking surface pointing in the opposite direction to the transport direction.

In Kombination mit der speziellen Umreifungseinrichtung ohne im Transportweg des Gutstapels stehenden Führungskanalabschnitten ergibt sich ein sauber definierter Transportweg des Gutstapels durch die Umreifungsmaschine, bei dem keinerlei seitlich aus den Transportweg auszufahrende und damit in Konflikt mit den seitlichen Führungswänden kommenden Bandkanalabschnitte vorzusehen sind.In combination with the special strapping without standing in the transport path of the stack guide channel sections results in a cleanly defined transport path of the stack by the strapping, in which no laterally auszufahrende from the transport and to be provided in conflict with the lateral guide walls band channel sections.

Besonders vorteilhaft ist in diesem Zusammenhang die oben erwähnte Steuereinrichtung zur definierten Steuerung der Transporteinrichtung bezüglich der Geschwindigkeit der Führungswände und Position der Vorschublaschen. Unter "definierte Steuerung" ist dabei zu verstehen, daß während des gesamten Betriebes der Transporteinrichtung eine Überwachung der Position der Vorschublaschen und der Geschwindigkeit der Führungswände erfolgt. Damit ist es möglich, die Transporteinrichtung laufend so zu betreiben, daß der Gutstapel optimal behandelt wird. Dazu gehört beispielsweise, daß bei der Übergabe des Gutstapels von einer Ausschubeinrichtung einer vor der erfindungsgemäßen Umreifungsmaschine positionierten Komponente, z.B. einer Verpackungsstraße, ein praktisch "fliegender Wechsel" des Gutstapels in die Transporteinrichtung der Umreifungsmaschine erfolgen kann. Dabei können die Führungswände in ihrer Geschwindigkeit an die Einlaufgeschwindigkeit des Gutstapels angepaßt werden. Gleichzeitig kann eine Steuerung so erfolgen, daß die Vorschublaschen von der Einlaufseite her den Gutstapel praktisch "einholen" und schonend von hinten an den Gutstapel heranfahren. Letzterer erfährt also keinerlei Stöße aufgrund eines Anschlagens an stehende Führungs- oder Anschlagelemente im Einfahrbereich der Umreifungsmaschine.Particularly advantageous in this context is the above-mentioned control device for the defined control of the transport device with respect to the speed of the guide walls and position of the feed tabs. By "defined control" is to be understood that during the entire operation of the transport device is a monitoring of the position of the feed tabs and the speed of the guide walls. This makes it possible to operate the transport device continuously so that the stack is treated optimally. This includes, for example, that in the transfer of the stack of goods from a Ausschubeinrichtung a positioned in front of the strapping machine according to the invention component, e.g. a packaging line, a practically "flying change" of the stack of goods in the transport device of the strapping machine can be done. The guide walls can be adapted in their speed to the inlet speed of the stack. At the same time, a control can be done so that the feed tabs virtually "catch up" from the inlet side of the stack and gently drive up from behind to the stack. The latter thus experiences no shocks due to a stop on stationary guide or stop elements in the retraction of the strapping machine.

Ferner sind in Umreifungsmaschinen herkömmlicherweise Paket-Anschläge vorgesehen, die die Umreifungsposition des Gutstapels in der Maschine definieren. Auch im Zusammenhang mit diesen Maschinenelementen kann mit Hilfe der erfindungsgemäßen Transporteinrichtung ein schonendes Heranfahren gewährleistet werden. Die Vorschublaschen dienen dabei gleichzeitig als Rückprall-Sicherung gegen ein durch den PaketAnschlag bedingtes Zurückschnellen der Stapelelemente.Further, in strapping machines conventionally packet stops are provided which define the strapping position of the stack in the machine. Also in connection with these machine elements can be ensured with the help of the transport device according to the invention a gentle approach. At the same time, the feed tabs serve as a rebound-proof against a back-speeding of the stack elements caused by the packet stop.

Bevorzugte Ausführungsformen des Erfindungsgegenstandes sind den Unteransprüchen und der nachfolgenden Beschreibung entnehmbar, in der ein Ausführungsbeispiel anhand der beigefügten Zeichnungen näher erörtert wird. Es zeigen:

Fig. 1
eine Perspektivdarstellung einer Verpackungsstraße mit einer erfindungsgemäßen Umreifungsmaschine, und
Fig. 2
eine Draufsicht auf die Umreifungsmaschine gemäß Fig. 1.
Preferred embodiments of the subject invention are the dependent claims and the following description, in which an embodiment with reference to the accompanying drawings is discussed in more detail. Show it:
Fig. 1
a perspective view of a packaging line with a strapping machine according to the invention, and
Fig. 2
a plan view of the strapping machine according to Fig. 1 ,

Die als Ganzes mit 1 bezeichnete Verpackungsstraße schließt an den Kreuzleger 2 einer Druckstraße an. In bekannter Manier wird in den Kreuzleger 2 eine bestimmte Anzahl von Druckprodukten D mit einer ersten Ausrichtung des Heftrandes eingelegt, wonach der Kreuzleger 2 um einer vertikale Achse um 180° gedreht und wiederum die bestimmte Anzahl von Druckprodukten in der gleichen Ausrichtung des Heftrandes eingelegt werden. Es bildet sich also ein Stapel von Produkten, in dem Teilstapel eine entgegengesetzte Ausrichtung des Heftrandes aufweisen. Dadurch wird ein gerader Stapel von sauber geschichteten Druckprodukten geschaffen. Sobald eine bestimmte Anzahl von Druckprodukten in dem Korb 3 des Kreuzlegers 2 gesammelt ist, wird der Korb geöffnet und der Stapel 4 durch einen Ausschieber 5 der Verpackungsstraße 1 in Förderrichtung R aufgegeben. Letztere weist vier Kombinationskomponenten 6, 7, 8, 9 auf, die im folgenden noch detaillierter dargelegt werden. Den Komponenten 6, 7, 8, 9 ist gemeinsam, daß sie tisch- oder schrankartige Untergestelle 10 aufweisen, die mit ihren Oberseiten eine Arbeitsfläche 11 bilden. Diese sind wiederum in einer gemeinsamen Förderebene F für den Zeitschriftenstapel 4 angeordnet.The packaging line designated as a whole by 1 adjoins the crosslapper 2 of a printing line. In a known manner, a certain number of printed products D is inserted with a first orientation of the binding margin in the stacker 2, after which the stacker 2 is rotated about a vertical axis by 180 ° and in turn the specific number of printed products in the same orientation of the binding margin are inserted. Thus, it forms a stack of products in which partial stacks have an opposite orientation of the binding margin. This creates a straight stack of cleanly layered printed products. Once a certain number of printed products is collected in the basket 3 of the crosslapper 2, the basket is opened and the stack 4 by a pusher 5 of the packaging line 1 in the conveying direction R abandoned. The latter has four combination components 6, 7, 8, 9, which are explained in more detail below. The components 6, 7, 8, 9 have in common that they have table or cabinet-like frames 10, which form a working surface 11 with their tops. These are in turn arranged in a common conveying plane F for the magazine stack 4.

Die sich direkt an den Kreuzleger 2 anschließende Kombinationskomponente 6 vereint eine erste Umreifungsmaschine 12 und einen Deckblattaufleger 13, der ein Deckblatt 14 von der Seite her auf den in die erste Komponente 6 eingefahrenen Stapel 4 auflegt. Der Deckblattaufleger 13 ist üblicher Bauart und bedarf daher keiner näheren Erörterung.The combination component 6 directly adjoining the stacker 2 combines a first strapping machine 12 and a cover sheet applicator 13, which hangs a cover sheet 14 from the side onto the stack 4 retracted into the first component 6. The cover sheet applicator 13 is of conventional design and therefore needs no further discussion.

Die erste Umreifungsmaschine 12 ist von einem Typ, der keine von der Arbeitsfläche 11 vertikal nach oben stehenden Bandkanalabschnitte aufweist. Insofern ist in der Fig. 1 mit Abstand oberhalb der Arbeitsfläche 11 auch nur ein Führungskanalabschnitt 15 mit einer Fangeinrichtung 16 für das Umreifungsband 17 dargestellt. Dieser Fangeinrichtung 16 ist als zusätzliche Bandvorschubeinrichtung ein Zwischenantrieb 16' für das Band zugeordnet. Diese Art von Umreifungsvorrichtung ist in der Deutschen Offenlegungsschrift DE 195 03 112 A1 bzw. dem Europäischen Patent EP 0 725 005 B1 in Funktion und Aufbau umfassend und ausführlich beschrieben. Daher soll hier nur kurz angemerkt werden, daß das Umreifungsband 17 von einer Bandvorratsspule 18 in einen nicht dargestellten Zwischenspeicher gefördert wird. Von dort wird bei einem Umreifungsvorgang das Band über eine erste freie Luftstrecke LF1 zwischen der Arbeitsfläche 11 und der Fangeinrichtung 16 hinweggeschossen, von letzterer aufgenommen und in dem Führungskanalabschnitt 15 mit Hilfe des Zwischenantriebs 16' weitertransportiert, um am entgegengesetzten Ende des Führungskanalabschnittes 15 wieder auszutreten und über die zweite freie Luftstrecke LF2 nach unten in eine zweite Fangeinrichtung 19 geschossen zu werden. In einem Schweißkopf unter der Arbeitsfläche 11 wird nach dem Straffziehen des so lose um den Stapel 4 gelegten Umreifungsbandes die Bandschlinge geschlossen und vom einlaufenden Bandvorrat abgetrennt.The first strapping machine 12 is of a type that does not have any band channel portions vertically upstanding from the work surface 11. Insofar is in the Fig. 1 at a distance above the working surface 11, only one guide channel section 15 with a catching device 16 for the strapping 17 is shown. This catcher 16 is assigned as an additional tape feed device an intermediate drive 16 'for the band. This type of strapping device is in the German Offenlegungsschrift DE 195 03 112 A1 or the European Patent EP 0 725 005 B1 comprehensively and extensively described in function and structure. Therefore, it should be noted here only briefly that the strap 17 is conveyed by a tape supply spool 18 in a buffer, not shown. From there, in a strapping operation, the tape is shot over a first free air gap LF1 between the working surface 11 and the catching device 16, from the latter taken up and transported in the guide channel section 15 by means of the intermediate drive 16 'in order to emerge again at the opposite end of the guide channel section 15 and to be shot down into a second catching device 19 via the second free air section LF2. In a welding head under the working surface 11, the belt loop is closed and separated from the incoming tape supply after the tensioning of so loosely placed around the stack 4 strapping tape.

Nach dem Auflegen des Deckblattes 14 werden im übrigen die beiden Pressbalken 20 von oben auf den Stapel 4 gedrückt, um diesen während des danach erfolgenden Umreifungsvorganges kompaktiert zu halten.After placing the cover sheet 14, moreover, the two pressing bars 20 are pressed onto the stack 4 from above, in order to keep them compacted during the strapping process taking place thereafter.

Zur Handhabung des Stapels 4 in der ersten Kombinationskomponente 6 dienen im übrigen einerseits die beiden seitlichen Führungs- und Transportwände 21, die nach Art eines endlosen Förderbandes ausgebildet und mit Vorschublaschen 22 versehen sind. Diese Vorschublaschen 22 laufen hinter dem vom Ausschieber 5 des Kreuzleger 2 auf die Arbeitsfläche 11 manövrierten Stapel 4 ein und schieben diesen gegen den seitlich einfahrbaren Paketanschlag 23. Während dieser Vorschubbewegung ist der noch nicht umreifte Stapel durch die seitlichen Führungswände 21, die Vorschublaschen 22 und den Paketanschlag 23 sauber geführt und kann nicht umfallen.For handling the stack 4 in the first combination component 6, moreover, on the one hand, the two lateral guide and transport walls 21, which are designed in the manner of an endless conveyor belt and provided with feed tabs 22. These feed tabs 22 run behind the maneuvered from the pusher 5 of the stacker 2 on the work surface 11 stack 4 and push it against the laterally retractable packet stop 23. During this feed movement of the not yet strapped stack through the lateral guide walls 21, the feed tabs 22 and Package stop 23 run clean and can not fall over.

Jede Führungswand 21 weist jeweils ein- und auslaufseitig bezüglich der Arbeitsfläche 11 um eine senkrechte Achse drehbare Umlenkrollen 38, 39 auf, von denen die in Förderrichtung R vorne liegenden Rollen 39 durch einen Motor 41 gesteuert angetrieben sind. Über diese Umlenkrollen 38, 39 ist jeweils ein Endlosband 40 gezogen, an dem jeweils eine einzige, plattenförmige Vorschublasche 22 angesetzt ist. Die Endlosbänder 40 und Vorschublaschen 22 sind so positioniert und gesteuert angetrieben, daß sie synchronlaufend - also in jedem Handhabungsschritt der Transporteinrichtung an gleicher Längsposition - angetrieben werden. Motor 41 und Steuerung 42 sind in Fig. 2 blockdiagrammartig durch strichlierte Rechtecke schematisch angedeutet. Die Eigenschaften der Steuerung 42 im Hinblick auf den Antrieb der Führungswände 21 und damit der Vorschublaschen 22 wurden in der Beschreibungseinleitung bereits ausführlich diskutiert und bedürfen hier keiner nochmaligen Erörterung.Each guide wall 21 has in each case on the inlet and outlet side with respect to the working surface 11 about a vertical axis rotatable deflection rollers 38, 39, of which in the conveying direction R front rollers 39 by a motor 41 are driven driven. About these pulleys 38, 39, an endless belt 40 is pulled in each case, to each of which a single, plate-shaped feed tab 22 is attached. The endless belts 40 and feed tabs 22 are so positioned and controlled driven that they synchronously - so in each handling step of the transport device at the same longitudinal position - are driven. Motor 41 and controller 42 are in Fig. 2 Block diagram indicated schematically by dashed rectangles. The properties of the controller 42 with regard to the drive of the guide walls 21 and thus the feed tabs 22 have already been discussed in detail in the introduction and need not be discussed again.

Die Umlenkrollen 38, 39 sind ferner auf einer Querverstelleinrichtung 43 montiert, mit deren Hilfe die beiden Führungswände 21 in ihrem seitlichen Abstand a an dem aus Untergestell 10 und Arbeitsfläche 11 gebildeten Arbeitstisch gelagert sind. Mit Hilfe dieser Querverstelleinrichtung 43 kann die Umreifungsvorrichtung somit an unterschiedliche Formate des Zeitschriftenstapels 4 angepaßt werden. Zusammen mit der Ausdehnung der Führungswände 21 in Förderrichtung R praktisch über die gesamte Länge 1 der Arbeitsfläche 11 ist der Zeitschriftenstapel 4 während seines gesamten Durchlaufes durch die Umreifungsmaschine 12 sauber geführt.The deflection rollers 38, 39 are further mounted on a Querverstelleinrichtung 43, by means of which the two guide walls 21 are mounted in their lateral distance a to the work table formed from the lower frame 10 and work surface 11. With the help of this Querverstelleinrichtung 43, the strapping device can thus be adapted to different formats of the magazine stack 4. Along with the extent of the guide walls 21 in the conveying direction R practically over the entire length 1 of the work surface 11 of the magazine stack 4 is guided cleanly throughout its passage through the strapping machine 12.

Nach der ersten, im gezeigten Fall lediglich als Hilfsumreifung dienenden Längsumreifung in der Umreifungsmaschine 12 ist der Stapel 4 zusammengehalten und kann damit durch herkömmliche Förderbänder in Zusammenarbeit mit den Führungswänden 21 weitertransportiert werden. Insoweit gelangt der Stapel 4 aus der ersten Kombinationskomponente 6 durch deren Auslaufförderbänder 24 heraus, die mit der zweiten Kombinationskomponente 7 - einer Folieneinschlageinrichtung - so synchronisiert ist, daß die Bewegung des Auslaufförderbandes 24 gleichzeitig den Einschub des Stapels 4 in die Folieneinschlageinrichtung 7 definiert.After the first, serving in the case shown only as Hilfsumreifung Längsumreifung in the strapping machine 12 of the stack 4 is held together and can thus be transported by conventional conveyor belts in cooperation with the guide walls 21. In that regard, the stack 4 comes from the first combination component. 6 through the outlet conveyor belts 24 out, which is synchronized with the second combination component 7 - a Folieneinschlageinrichtung - so that the movement of the outlet conveyor belt 24 simultaneously defines the insertion of the stack 4 in the Folieneinschlageinrichtung 7.

Letztere ist in ihrer Funktionsweise wie üblich und bekannt ausgestaltet und bedarf keiner näheren Erörterung. Es ist lediglich festzuhalten, daß der Stapel 4 gegen ein "Vorhang" der Verpackungsfolie 25 fährt, die somit unter, vor, auf und durch ein entsprechendes Verfahren der oberen Vorratswalze 26 für die Verpackungsfolie 25 auch hinter den Stapel 4 gebracht werden kann. Anschließend wird durch den Schweißbalken 36 in der Kombinationskomponente 7 der Stapel 4 an seiner Rückseite verschweißt. Die Seiten bleiben dabei offen. Der Schweißbalken 36 kann synchron in Pfeilrichtung 37 mit dem Stapel 4 mitlaufen, so daß zum Verschweißen der Stapel 4 nicht angehalten werden muß. Optional kann der von der Verpakkungsfolie 25 um den Stapel 4 gebildete Folienschlauch auch an den Seiten verschweißt werden, wobei Vorder- und Hinterseite des Stapels 4 dann offen bleiben.The latter is designed in its mode of operation as usual and known and requires no further discussion. It is only to be noted that the stack 4 moves against a "curtain" of the packaging film 25, which can thus be brought under, before, on and by a corresponding method of the upper supply roll 26 for the packaging film 25 behind the stack 4. Subsequently, the stack 4 is welded at its back by the welding bar 36 in the combination component 7. The pages remain open. The welding bar 36 can run synchronously in the direction of arrow 37 with the stack 4, so that for the welding of the stack 4 does not have to be stopped. Optionally, the film tube formed by the packaging film 25 around the stack 4 can also be welded on the sides, the front and rear sides of the stack 4 then remaining open.

Über das Förderband 27 der Folieneinschlageinrichtung 7 gelangt der umhüllte Stapel 4 in die dritte Kombinationskomponente 8, die eine Seitenverschweißeinrichtung 28 mit einer zweiten Umreifungseinrichtung 29 kombiniert. Diese entspricht in Aufbau und Funkionsweise der ersten Umreifungsvorrichtung 12 und bedarf daher keiner nochmaligen Erörterung. Übereinstimmende Bauteile sind mit übereinstimmenden, apostrophierten Bezugszeichen versehen.Via the conveyor belt 27 of the film wrapping device 7, the wrapped stack 4 passes into the third combination component 8, which combines a side sealer 28 with a second strapping device 29. This corresponds in structure and function of the first strapping device 12 and therefore does not require repeated discussion. Corresponding components are provided with matching, apostrophized reference numerals.

Die Seitenverschweißeinrichtung 28 weist Schweißbalken 30 mit Punktschweißaggregaten 31 auf. Aufgrund der Anordnung seitlich der Förderbänder 34 der Funktionskomponente 8 erfolgt also dort eine Punktverschweißung an den Seiten der Verpackungsfolie. Diese Punktverschweißung wird nur bei sehr niedrigen Stapeln durchgeführt. Höhere Stapel erhalten durch die Umreifungseinrichtung 29 eine Längsumreifung nach dem Folieneinschlag in der Funktionskomponente 7.The side sealer 28 has welding bars 30 with spot welding units 31. Due to the arrangement of the side of the conveyor belts 34 of the functional component 8 so there is a spot welding on the sides of the packaging film. This spot welding is performed only at very low stacks. Higher stacks obtained by the strapping device 29 a Längsumreifung after film wrapping in the functional component. 7

In der letzten Komponente 9 schließt sich eine übliche Querumreifungseinrichtung 33 an, die einlaufseitig wiederum von den Förderbändern 34 der vorherigen Funktionskomponente 8 gespeist wird.In the last component 9 is followed by a conventional Querumreifungseinrichtung 33, which in turn is fed by the feed belts 34 of the previous functional component 8 on the inlet side.

Claims (8)

  1. Strapping machine for strapping a stack of products (4), in particular a stack of periodicals, by means of a strapping tape comprising
    - a work table (10, 11),
    - a strapping device (12), arranged on the work table (10, 11), with a tape guide unit (15) which is free from guide duct portions projecting upwardly from a work surface (11) of the work table (10, 11) in the conveyance path of the stack of products (4);
    - a conveyor for conveying the stack of products (4) through the strapping machine, said conveyor being provided with conveyor-belt-type guide walls (21) which flank the stack of products (4) on both sides in the conveyance direction (R), and with a feed plate (22) for the stack of products (4), said feed plate being mounted on each of said guide walls (21) for conveying the stack of products (4), characterized in that the conveyor is provided with a controller (42) for controlling both speed of the guide walls (21) and position of the feed plate (22) of the conveyor in such a way as to enable the conveyor to take over the stack of products (4), upon entering the conveyor, in a "flying" manner by adapting the speed of the guide walls (21) to the entry speed of the stack of products (4), and by the feed plates (22) catching up with the stack of products (4) and approaching the stack of products (4) gently from behind.
  2. Strapping machine according to claim 1, characterized in that each guide wall (21) comprises two return rollers (38, 39) arranged on the work table (10, 11) on an inlet side and an outlet side, an endless belt (40) placed round said return rollers (38, 39), at least one of which being driven in a defined controlled manner.
  3. Strapping machine according to claim 1 or 2, characterized in that one single feed plate (22) is attached to each endless belt (40), the feed plates (22) being drivable by means of a controller (42) allocated to their drive (41), enabling the feed plates (22) to run in a synchronous manner.
  4. Strapping machine according to any one of claims 1 to 3, characterized in that the guide walls (21) are mounted on the work table (10, 11) so as to be adjustable with respect to their lateral spacing (a) from one another.
  5. Strapping machine according to any one of claims 1 to 4, characterized in that the conveyor is provided with additional conveyor belts (24) which are disposed on the working surface
  6. Strapping machine according to any one of claims 1 to 5, characterized in that the strapping machine is a longitudinal strapping device.
  7. Strapping machine according to claim 6, characterized in that the longitudinal strapping device (12) comprises a tape guide duct portion (15) which is arranged above the work surface (11) and extends in the conveying direction (R).
  8. Strapping machine according to claim 7, characterized in that the tape guide duct portion (15) has a belt collecting and feed device (16, 16') on an entry side.
EP00107761A 1999-05-05 2000-04-11 Tying machine for tying a stack of articles Expired - Lifetime EP1050463B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19920531A DE19920531C2 (en) 1999-05-05 1999-05-05 Packaging line for magazines, magazines and the like printed products
DE19920531 1999-05-05
DE29917881U 1999-10-08
DE29917881U DE29917881U1 (en) 1999-05-05 1999-10-08 Strapping machine for strapping a stack of goods

Publications (3)

Publication Number Publication Date
EP1050463A2 EP1050463A2 (en) 2000-11-08
EP1050463A3 EP1050463A3 (en) 2005-04-06
EP1050463B1 true EP1050463B1 (en) 2008-03-12

Family

ID=26053226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107761A Expired - Lifetime EP1050463B1 (en) 1999-05-05 2000-04-11 Tying machine for tying a stack of articles

Country Status (4)

Country Link
EP (1) EP1050463B1 (en)
AT (1) ATE388894T1 (en)
DE (1) DE50015038D1 (en)
ES (1) ES2300239T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699389B1 (en) * 2008-08-18 2017-09-29 Ferag Ag Temporary storage device and stacking unit with temporary storage device.
ES2415986B1 (en) * 2013-02-07 2014-05-27 Global Hub Services, S.L. Folding machine of flexible envelope string harvester
CN108820291A (en) * 2018-06-22 2018-11-16 浙江东经科技股份有限公司 Cardboard ties up turnover device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3343334A (en) * 1963-02-28 1967-09-26 Journal Company Method and apparatus fof bundling stacked material
IT1169112B (en) * 1983-02-24 1987-05-27 Augusto Marchetti TAPING MACHINE WITH ADJUSTABLE DISTANCE DRIVING UNIT
US4502587A (en) * 1983-04-18 1985-03-05 R. J. Reynolds Tobacco Company Automatic accumulator for rectangular articles
US5078057A (en) * 1990-01-05 1992-01-07 Illinois Tool Works Inc. Binding machine, such as strapping machine
DE4241800A1 (en) * 1992-12-11 1994-06-16 Busch Gerhard Gmbh Device for supplying stacks of sheets to processing station - has extra intermediate plate to support and slide in stack to avoid puckering of bottom sheet
DE19615009B4 (en) * 1996-04-16 2005-09-29 Smb Schwede Maschinenbau Gmbh Stacker with strapping device

Also Published As

Publication number Publication date
ATE388894T1 (en) 2008-03-15
EP1050463A3 (en) 2005-04-06
DE50015038D1 (en) 2008-04-24
ES2300239T3 (en) 2008-06-16
EP1050463A2 (en) 2000-11-08

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