EP0401554A1 - Machine for binding packages - Google Patents

Machine for binding packages Download PDF

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Publication number
EP0401554A1
EP0401554A1 EP90109096A EP90109096A EP0401554A1 EP 0401554 A1 EP0401554 A1 EP 0401554A1 EP 90109096 A EP90109096 A EP 90109096A EP 90109096 A EP90109096 A EP 90109096A EP 0401554 A1 EP0401554 A1 EP 0401554A1
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EP
European Patent Office
Prior art keywords
package
machine
strapping
gripper
conveying path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90109096A
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German (de)
French (fr)
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EP0401554B1 (en
Inventor
Hans Hugo Büttner
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.)
Buettner Maschinenfabrik & Co GmbH KG
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Buettner Maschinenfabrik & Co GmbH 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 EP0401554A1 publication Critical patent/EP0401554A1/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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • 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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply

Definitions

  • the invention relates to a machine for strapping packages according to the preamble of claim 1.
  • Such a machine is known from EP-PS 178 385, wherein after the strapping means guide member has been displaced into the height above the top of the package, the free-stretched tendon is present, which is pulled out as the package passes. After the tying has ended, the tying means guide member always returns to its starting position. This means that each package passing through the machine is provided with a strapping that runs in the feed movement. With such a machine, tight straps can be produced because of the repeated protruding of the strapping means.
  • the invention is based on the object of designing a machine of the type in question in a technically simple manner so that the area of use is increased.
  • the area of application of a generic machine is increased.
  • the packages passing through the machine can optionally be tied. Nevertheless, the advantageous mode of operation of the machine is not abandoned.
  • the means that the corresponding straps are always tight. If no strapping is to be provided on a package, the carrier moving up and down to the side of the conveying path moves into its down position connected with the fact that the strapping means guide member moves from the height above the top of the package to the height below the conveying path and thereby immersed in the upwardly open trough of the conveyor line formed by the deflection position. There is then no free-stretched chord above the conveyor line, so that the package passes the conveyor line without being tied.
  • the free-stretched tendon is again present between the gripper and the strapping means guide member, so that when the next package is passed, the package is then turned out and subsequently strapped.
  • the machine obtains a high strapping performance in terms of strapping per unit time due to the fact that the carrier and the deflection points of the Conveyor line sit on a common carriage moving back and forth in the direction of movement of the package. This carriage also accommodates the gripper and the locking device. The package therefore does not have to be stopped during its passage through the machine, even if the sealing process takes place.
  • the machine for strapping packages P has a frame-like machine frame 1.
  • the latter has two parallel guide rails 2, on which a frame-shaped carriage 3 can be moved back and forth.
  • the guide rails 2 run in the direction of package travel x.
  • the package conveyor section 4 is formed by two parallel belt drives 5, 6, which leave a gap 7 between them at the level of the tying plane y-y.
  • the belt drives 5, 6 have rollers 8, 9 mounted on the inlet and outlet sides of the machine frame 1. Then, at least for the belt drive 5, carriage-side deflection rollers 10, 11, 12 and 13, 14, 15, 16 are provided.
  • the deflecting rollers 10, 11, 12 are assigned to the leading strand and the remaining deflecting rollers 13, 14, 15, 16 to the returning strand.
  • the aforementioned deflection rollers 10 - 16 have a free-floating bearing. The correspond de bearing is located on the part of the carriage 3 opposite the gap 7 and is not illustrated in detail.
  • the deflecting rollers 10, 11, 12 form a trough 17 which is open at the top on the package conveyor section 4 and which moves with the carriage 3 moving back and forth.
  • the carriage 3 receives two vertically aligned and parallel guide rods 18, which project laterally beyond the package conveyor section 4 and on which a carrier 19 can be displaced.
  • the piston rod 20 of a lifting cylinder acts on the carrier 19.
  • a horizontally oriented arm 21 extending transversely to the conveyor path 4 extends from the carrier 19 which can be moved up and down to the side of the conveyor path 4.
  • a deflection roller 22 At the end of the same there is a deflection roller 22, the axis of which extends in the package conveying direction.
  • the arm is then provided at the end with a downwardly extending arm 23. At the end, this supports a deflection roller 24, the axis of which runs at an acute angle to the package conveying direction x.
  • the angle between the axis of the deflection roller 24 and the package movement direction is approximately 45 °.
  • the boom 23 also receives a further deflection roller 25. Their axis is slightly above that of the deflection roller 24. The axis of this deflection roller 25 extends transversely to the package conveying direction.
  • the strapping means 26 drawn off from a strapping means supply roll (not illustrated) runs along the arm 21 and wraps around the deflecting roller 22. From there, the strapping means 26 is wrapped around the deflecting roller 24 which is at an angle to the package conveying direction. Subsequently, the strapping means 26 wraps around the deflection roller 25, in order from there to be arranged as a freely stretched chord S according to FIG.
  • Gripper 27 to run.
  • the latter is a component of a closure device 28 illustrated by a dot-dash line.
  • the gripper 27 is designed like a finger and can be moved up and down. Together with the gripper 27 acts a roller 29 arranged in the tying plane yy, which is seated on a plunger 30 controlled by the closure device 28.
  • an upper pressure jaw 31 is assigned, which interacts with a heating plate 32 and a lower pressure jaw 33. Furthermore, the pressure jaw is also assigned a holding clamp 34 for the strapping means 26.
  • FIG. 1 the machine is in its starting position.
  • the strapping means end 26 ' is held by the gripper 27 and runs from there via the deflection rollers 25, 24, 22 to the arm 21 forming the strapping means guide member 21.
  • the pressure jaw 31, the heating plate 32, the lower pressure jaw 33 and the holding clamp 34 are in the displaced position. This means that they do not extend in the tying plane yy.
  • the carriage 3 has been moved towards the inlet end of the machine by means not shown. If a package P is now fed in the direction of movement x, this leads to an expansion of the free-stretched tendon S according to FIG. 4.
  • FIG. 4 the free-stretched tendon S
  • the gripper 27 has moved in the upward direction, while the upper pressure jaw 31 and the holding clamp 34 are controlled and the strapping means end facing 26 'capture and clamp it.
  • the gripper 27 in turn then opens.
  • the carrier 19 has moved its arm 21 in the downward direction and pulls the strapping means 26 over the upper right corner of the package P, as seen in the conveying direction.
  • the arm 21 plunges into the trough 17 of the package conveyor section 4 formed by the deflection points.
  • the deflection roller 24 mounted at an acute angle to the package movement direction x, only the strapping middle section facing the back of the package extends in the strapping plane yy.
  • the next movement step is that the opened gripper 27 travels in the downward direction to achieve the position shown in FIG. 6, the end of the strapping means 26 having left the gripper 27.
  • the plunger 30 with the roller 29 then comes forward to achieve a further indented section of the strapping means, cf. Fig. 10.
  • the roller 29 only detects the middle section of the strapping which runs in the strapping plane y-y.
  • the carriage 3 sets in motion in the package conveying direction x, so that the package P then does not come to a standstill in the subsequent closing process.
  • the gripper 27 moves to the other side of the pressure jaw 31 during this process and closes, as a result of which the strapping means is held at two points in the region of the connection point.
  • FIG. 8 The next work step shown in FIG. 8 now follows. This consists in the closed gripper 27 traveling in the upward direction. Then the lower pressure jaw 33 and the heating plate 32 advance. The corresponding strapping sections are heated. Thereafter, the heating plate 32 moves back and the lower pressure jaw 33 in the upward direction, the corresponding strapping means sections being welded. After a short cooling time, the gripper 27 moves downward. At the same time, the strapping means 26 is pulled over the knife edge 35 that is adjacent to the lower pressure jaw 33, severing the strapping means 26. The end of the strapping means then present is held exclusively by the gripper 27, cf. Fig. 9.
  • the lower pressure jaw 33 now opens and the upper and lower pressure jaws move back out of the tying level, so that the package P is conveyed on without stopping. From Fig. 9 it can be seen that the gripper gap 36 is horizontal. Now the gripper 27 moves back to the other side of the upper pressure jaw 31 and thereby rotates through 360 °, while the carrier 19 with the arm 21 moves up again, reaching the starting position according to FIG. 1. The rotary movement of the gripper 27 is such that no strapping agent is wound on it. The gripper gap 36 has thus rotated through 360 ° during its back and forth movement.
  • the carrier 19 then remains in its low position after the strapping of the package P which has passed through last. This means that the arm 21 is located in the trough 17 of the package conveyor section 4 and therefore not in the path of movement of the package P ' lies. There is therefore no protrusion of a strapping tendon.
  • the carrier 19 remains with its arm in its low position and only returns to its upper position when packages are to be tied again, so that after a corresponding upward displacement of the carrier with arm, the position in accordance with FIG 1 is present.

Abstract

The invention relates to a machine for binding packages (P) with a binding medium (26) which can be drawn off from a stock roll, in which machine the package (P), as a result of being pushed forward on a packaging conveying path (4) projects against a cord (S) stretched transversely to the direction of advance (x) from the feed end to a gripper (27), this cord extending from the gripper (27), arranged below the conveying path (4) and adjacent to a closure device (28), to a binding medium guide member which can be moved from a vertical position above the top of the package into a vertical position below the conveying path (4); in order to achieve an optimum solution, particularly from the point of view of application technology, it proposes that the binding medium guide member is designed as an arm (21), extending transversely into the region of the conveying path (4), of a support (19) which is moved up and down to the side of the conveying path (4) and, in the low position of the support (19), dips into a trough (17) of the conveying path (4) which is formed by deflection points and is open at the top. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Maschine zum Umschnü­ren von Packstücken gemäß Oberbegriff des Patentanspru­ches 1.The invention relates to a machine for strapping packages according to the preamble of claim 1.

Eine derartige Maschine ist bekannt aus der EP-PS 178 385, wobei nach Verlagerung des Umschnürungsmittel-Füh­rungsgliedes in die oberhalb der Packstück-Oberseite liegende Höhenlage die freigespannte Sehne vorliegt, die beim Durchlauf des Packstückes ausgestülpt wird. Nach beendeter Umschnürung kehrt das Umschnürungsmittel-füh­rungsglied stets in seine Ausgangsstellung zurück. Das bedeutet, daß jedes die Maschine durchlaufende Packstück eine in Vorschubbewegung verlaufende Umschnürung erhält. Es lassen sich mit einer solchen Maschine straffe Um­schnürungen herstellen wegen des mehrmaligen Ausstülpens des Umschnürungsmittels.Such a machine is known from EP-PS 178 385, wherein after the strapping means guide member has been displaced into the height above the top of the package, the free-stretched tendon is present, which is pulled out as the package passes. After the tying has ended, the tying means guide member always returns to its starting position. This means that each package passing through the machine is provided with a strapping that runs in the feed movement. With such a machine, tight straps can be produced because of the repeated protruding of the strapping means.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Ma­schine der in Rede stehenden Art in herstellungstech­nisch einfacher Weise so auszugestalten, daß der Einsatz­bereich erhöht ist.The invention is based on the object of designing a machine of the type in question in a technically simple manner so that the area of use is increased.

Gelöst wird diese Aufgabe durch die im Patentanspruch 1 angegebene Erfindung.This object is achieved by the invention specified in claim 1.

Die Unteransprüche stellen vorteilhafte Weiterbildungen des Patentanspruches 1 dar.The subclaims represent advantageous developments of patent claim 1.

Zufolge derartiger Ausgestaltung ist der Einsatzbereich einer gattungsgemäßen Maschine erhöht. Die die Maschine durchlaufenden Packstücke können wahlweise mit einer Verschnürung versehen werden. Dennoch wird die vorteil­hafte Arbeitsweise der Maschine nicht aufgegeben. Das bedeutet, daß die entsprechenden Umschnürungen stets straff erzeugt werden. Soll an einem Packstück keine Umschnürung vorgesehen werden, so fährt der sich seit­lich der Förderstrecke auf- und ab bewegende Träger in seine Tiefstellung verbunden damit, daß das Umschnürungs­mittel-Führungsglied aus der Höhenlage oberhalb der Pack­stück-Oberseite in die Höhenlage unterhalb der Förder­strecke gelangt und dabei in die durch die Umlenkstel­lung gebildete, nach oben offene Mulde der Förderstrecke eintaucht. Es liegt dann keine freigespannte Sehne ober­halb der Förderstrecke vor, so daß das Packstück, ohne eine Umschnürung zu erhalten, die Förderstrecke pas­siert. Vornehmlich ist dies der Fall, wenn es sich bezüg­lich der Packstücke um Zeitungsstapel mit nur wenigen Zeitungen handelt. In der Regel werden Zeitungsstapel mit einer Kreuzumschnürung versehen. Die eine Umschürung wird in der erfindungsgemäßen Maschine und die andere z. B. in einer Ringmaschine erzeugt. Das bedeutet, daß ein nur aus wenigen Zeitungen bestehender Zeitungsstapel nur die Umschnürung innerhalb der Ringmaschine erhält, weil dort kein Ausstülpen stattfindet, sondern das Um­schnürungsmittel von einem Umschnürungsring um das Pack­stück herumgelegt wird. Ist dagegen die Umschnürung innerhalb der erfindungsgemäßen Maschinen erforderlich, so fährt der Träger in seine Hochstellung, so daß dann der querseitig in den Bereich der Förderstrecke reichen­de Arm des Umschnürungsmittel-Führungsgliedes in die Höhenlage oberhalb der Packstück-Oberseite fährt. Da­durch liegt wieder die freigespannte Sehne zwischen dem Greifer und dem Umschnürungsmittel-Führungsglied vor, so daß beim Durchlauf des nächsten Packstückes das Ausstül­pen und anschließende Umschnüren des Packstückes statt­findet. Eine hohe Umschnürungsleistung im Hinblick auf Umschnürungen pro Zeiteinheit erhält die Maschine durch die Tatsache, daß der Träger und die Umlenkstellen der Förderstrecke auf einem gemeinsamen in Bewegungsrichtung des Packstückes vor- und zurückbeweglichen Wagen sitzen. Dieser Wagen nimmt gleichzeitig auch den Greifer und die Verschlußeinrichtung auf. Das Packstück braucht daher während seines Durchlaufs durch die Maschine nicht still­gesetzt zu werden, selbst wenn der Verschlußvorgang stattfindet. Wenn vor dem zweiten Einstülpen des Umschnü­rungsmittels schon der Vorlauf des Wagens einsetzt, kann man, da beide Bewegungen in Transportrichtung liegen, einen weichen Übergang hinsichtlich der Umschnürung schaffen unter Schonung der rückwärtigen Packstückecke. Die Geschwindigkeiten sind jedoch so, daß diejenige des Stößels, welcher das Umschnürungsmittel von rückwärts in Richtung der Verschlußeinrichtung einstülpt, größer ist als die Durchlaufgeschwindigkeit des Packstückes. Ein störungsfreier Arbeitsablauf ist dabei dadurch gewährlei­stet, daß die Förderstrecke aus zwei parallellaufenden Riementrieben besteht, die einen Spalt zum Durchtritt des das Umschnürungsmittel von rückwärts in Richtung der Verschlußeinrichtung einstülpenden Stößels belassen. Innerhalb dieses Spaltes arbeitet der Stößel und kann daher nicht mit dem Riementrieben kollidieren, und zwar auf Höhe der Mulde. Die diese bildenden Umlenkstellen können als freifliegend gelagerte Walzen gestaltet sein, wodurch sich der vorgenannte Spalt ergibt.As a result of such a configuration, the area of application of a generic machine is increased. The packages passing through the machine can optionally be tied. Nevertheless, the advantageous mode of operation of the machine is not abandoned. The means that the corresponding straps are always tight. If no strapping is to be provided on a package, the carrier moving up and down to the side of the conveying path moves into its down position connected with the fact that the strapping means guide member moves from the height above the top of the package to the height below the conveying path and thereby immersed in the upwardly open trough of the conveyor line formed by the deflection position. There is then no free-stretched chord above the conveyor line, so that the package passes the conveyor line without being tied. This is primarily the case if the packages are stacks of newspapers with only a few newspapers. As a rule, stacks of newspapers are tied with a cross. One constriction is in the machine according to the invention and the other z. B. generated in a ring machine. This means that a newspaper stack consisting of only a few newspapers receives only the strapping within the ring machine because there is no protrusion there, but the strapping means is wrapped around the package by a strapping ring. If, on the other hand, the strapping is required within the machines according to the invention, the carrier moves into its high position, so that the arm of the strapping means guide member reaching transversely into the region of the conveying path then moves to the height above the top of the package. As a result, the free-stretched tendon is again present between the gripper and the strapping means guide member, so that when the next package is passed, the package is then turned out and subsequently strapped. The machine obtains a high strapping performance in terms of strapping per unit time due to the fact that the carrier and the deflection points of the Conveyor line sit on a common carriage moving back and forth in the direction of movement of the package. This carriage also accommodates the gripper and the locking device. The package therefore does not have to be stopped during its passage through the machine, even if the sealing process takes place. If the lead of the carriage starts before the second insertion of the strapping means, since both movements are in the direction of transport, a smooth transition with regard to the strapping can be created while protecting the rear corner of the package. However, the speeds are such that that of the plunger, which turns the strapping means backwards in the direction of the closing device, is greater than the throughput speed of the package. A trouble-free workflow is ensured by the fact that the conveyor section consists of two parallel belt drives, which leave a gap for the passage of the plunger, which plugs in from the rear in the direction of the closure device. The plunger works within this gap and therefore cannot collide with the belt drive, namely at the level of the trough. The deflection points forming these can be designed as free-floating rollers, which results in the aforementioned gap.

Nachstehend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung erläutert. Es zeigt:

  • Fig. 1 in stark schematisierter Darstellung eine Seitenansicht der Maschine, und zwar bei in der Hochstellung befindlichem Träger mit Um­schnürungsmittel-Führungsglied bei freigespann­ter Sehne,
  • Fig. 2 eine Teildraufsicht der Maschine im Bereich des in den Bereich der Förderstrecke reichen­den, das Umschnürungsmittel-Führungsglied bildenden Armes,
  • Fig. 3 eine Seitenansicht der Förderstrecke im Be­reich der Mulde mit in diese eingetauchtem Arm,
  • Fig. 4-9 in schematischen Darstellungen Positionen während des Umschnürens eines Packstückes und
  • Fig. 10 ebenfalls in schematischer Darstellung einen Teilbereich der Maschine im Bereich der Pack­stück-Förderstrecke, in deren Mulde der Arm eingetaucht ist, so daß das durchlaufende Pack­stück keine Umschnürung erhält.
An embodiment of the invention is explained below with reference to the drawing. It shows:
  • 1 is a highly schematic representation of a side view of the machine, specifically when the carrier is in the up position with a strapping means guide member with the tendon released,
  • 2 is a partial plan view of the machine in the region of the arm which forms the strapping means guide member and which extends into the region of the conveyor path,
  • 3 is a side view of the conveyor line in the region of the trough with the arm immersed in it,
  • Fig. 4-9 in schematic representations positions during the strapping of a package and
  • Fig. 10 is also a schematic representation of a portion of the machine in the area of the package conveyor line, in the trough of which the arm is immersed, so that the continuous package is not tied.

Die Maschine zum Umschnüren von Packstücken P besitzt ein rahmenartiges Maschinengestell 1. Letzteres weist zwei parallel zueinander verlaufende Führungsschienen 2 auf, auf welchen ein rahmenförmig gestalteter Wagen 3 hin- und zurückbewegbar ist. Die Führungsschienen 2 verlaufen in Packstück-Durchlaufrichtung x. Gebildet ist die Packstück-Förderstrecke 4 von zwei parallellaufenden Riementrieben 5, 6, welche auf Höhe der Umschnürungsebe­ne y-y einen Spalt 7 zwischen sich belassen.The machine for strapping packages P has a frame-like machine frame 1. The latter has two parallel guide rails 2, on which a frame-shaped carriage 3 can be moved back and forth. The guide rails 2 run in the direction of package travel x. The package conveyor section 4 is formed by two parallel belt drives 5, 6, which leave a gap 7 between them at the level of the tying plane y-y.

Die Riementriebe 5, 6 besitzen ein- und auslaufseitig des Maschinengestells 1 gelagerte Walzen 8, 9. Sodann sind zumindest für den Riementrieb 5 wagenseitige Umlenk­walzen 10, 11, 12 und 13, 14, 15, 16 vorgesehen. Die Umlenkwalzen 10, 11, 12 sind dem vorlaufenden Trumm und die übrigen Umlenkwalzen 13, 14, 15, 16 dem rücklaufen­den Trumm zugeordnet. Vorgenannte Umlenkrollen 10 - 16 weisen eine freifliegende Lagerung auf. Die entsprechen­ de Lagerstelle befindet sich an dem dem Spalt 7 gegen­überliegenden Teil des Wagens 3 und ist im einzelnen nicht näher veranschaulicht. Durch die Umlenkwalzen 10, 11, 12 wird eine nach oben offene Mulde 17 an der Pack­stück-Förderstrecke 4 gebildet, die sich bei vor- und zurücklaufendem Wagen 3 mitbewegt.The belt drives 5, 6 have rollers 8, 9 mounted on the inlet and outlet sides of the machine frame 1. Then, at least for the belt drive 5, carriage-side deflection rollers 10, 11, 12 and 13, 14, 15, 16 are provided. The deflecting rollers 10, 11, 12 are assigned to the leading strand and the remaining deflecting rollers 13, 14, 15, 16 to the returning strand. The aforementioned deflection rollers 10 - 16 have a free-floating bearing. The correspond de bearing is located on the part of the carriage 3 opposite the gap 7 and is not illustrated in detail. The deflecting rollers 10, 11, 12 form a trough 17 which is open at the top on the package conveyor section 4 and which moves with the carriage 3 moving back and forth.

Ferner nimmt der Wagen 3 zwei seitlich die Packstück-För­derstrecke 4 überragende, vertikal ausgerichtete und parallel verlaufende Führungsstangen 18 auf, auf welchen ein Träger 19 verschiebbar ist. An dem Träger 19 greift die Kolbenstange 20 eines nicht veranschaulichten Hubzy­linders an. Von dem seitlich der Förderstrecke 4 auf­und abbewegbaren Träger 19 geht ein horizontal ausgerich­teter, quer zur Förderstrecke 4 verlaufender Arm 21 aus. Endseitig desselben befindet sich eine Umlenkrolle 22, deren Achse in Packstück-Förderrichtung verläuft. Sodann ist der Arm endseitig mit einem nach unten ragenden Ausleger 23 versehen. Endseitig lagert dieser eine Um­lenkrolle 24, deren Achse spitzwinklig zur Packstück-För­derrichtung x verläuft. Beim Ausführungsbeispiel beträgt der Winkel zwischen der Achse der Umlenkrolle 24 und der Packstück-Bewegungsrichtung ca. 45° . Ferner nimmt der Ausleger 23 eine weitere Umlenkrolle 25 auf. Deren Achse liegt etwas oberhalb derjenigen der Umlenkrolle 24. Die Achse dieser Umlenkrolle 25 erstreckt sich quer zur Pack­stück-Förderrichtung. Das von einer nicht veranschaulich­ten Umschnürungsmittel-Vorratsrolle abgezogene Umschnü­rungsmittel 26 verläuft längs des Armes 21 und um­schlingt die Umlenkrolle 22. Von dort ist das Umschnü­rungsmittel 26 um die schäg zur Packstück-Förderrichtung stehende Umlenkrolle 24 herumgelegt. Anschließend um­schlingt das Umschnürungsmittel 26 die Umlenkrolle 25, um von dort aus gemäß Fig. 1 als freigespannte Sehne S zu einem unterhalb der Förderstrecke 4 angeordneten Greifer 27 zu laufen. Letzterer ist Bestandteil einer strichpunktiert veranschaulichten Verschlußeinrichtung 28. Der Greifer 27 ist fingerartig gestaltet und auf­und abbewegbar. Mit dem Greifer 27 zusammen wirkt eine in der Umschnürungsebene y-y angeordnete Rolle 29, die an einem von der Verschlußeinrichtung 28 gesteuerten Stößel 30 sitzt.Furthermore, the carriage 3 receives two vertically aligned and parallel guide rods 18, which project laterally beyond the package conveyor section 4 and on which a carrier 19 can be displaced. The piston rod 20 of a lifting cylinder (not shown) acts on the carrier 19. A horizontally oriented arm 21 extending transversely to the conveyor path 4 extends from the carrier 19 which can be moved up and down to the side of the conveyor path 4. At the end of the same there is a deflection roller 22, the axis of which extends in the package conveying direction. The arm is then provided at the end with a downwardly extending arm 23. At the end, this supports a deflection roller 24, the axis of which runs at an acute angle to the package conveying direction x. In the exemplary embodiment, the angle between the axis of the deflection roller 24 and the package movement direction is approximately 45 °. The boom 23 also receives a further deflection roller 25. Their axis is slightly above that of the deflection roller 24. The axis of this deflection roller 25 extends transversely to the package conveying direction. The strapping means 26 drawn off from a strapping means supply roll (not illustrated) runs along the arm 21 and wraps around the deflecting roller 22. From there, the strapping means 26 is wrapped around the deflecting roller 24 which is at an angle to the package conveying direction. Subsequently, the strapping means 26 wraps around the deflection roller 25, in order from there to be arranged as a freely stretched chord S according to FIG. 1 to a below the conveyor section 4 Gripper 27 to run. The latter is a component of a closure device 28 illustrated by a dot-dash line. The gripper 27 is designed like a finger and can be moved up and down. Together with the gripper 27 acts a roller 29 arranged in the tying plane yy, which is seated on a plunger 30 controlled by the closure device 28.

In Gegenüberlage zum Greifer 27 ist eine obere Druckbak­ke 31 zugeordnet, welche mit einer Heizlamelle 32 und einer unteren Druckbacke 33 zusammenwirkt. Ferner ist der Druckbacke noch eine Halteklemme 34 für das Umschnü­rungsmittel 26 zugeordnet.In opposition to the gripper 27, an upper pressure jaw 31 is assigned, which interacts with a heating plate 32 and a lower pressure jaw 33. Furthermore, the pressure jaw is also assigned a holding clamp 34 for the strapping means 26.

Es stellt sich folgende Wirkungsweise ein: Gemäß Fig. 1 befindet sich die Maschine in ihrer Aus­gangsstellung. Das Umschnürungsmittelende 26′ ist vom Greifer 27 gehalten und verläuft von dort über die Um­lenkrollen 25, 24, 22 zum das Umschnürungsmittel-Füh­rungsglied bildenden Arm 21. Es liegt dann eine frei­gepannte Sehne S vor. Ferner befinden sich in dieser Stellung die Druckbacke 31, die Heizlamelle 32, die untere Druckbacke 33 und die Halteklemme 34 in zurückver­lagerter Stellung. Das bedeutet, daß sie sich nicht in der Umschnürungsebene y-y erstrecken. Ferner ist der Wagen 3 über nicht dargestellte Mittel in Richtung auf das einlaufseitige Ende der Maschine bewegt worden. Wird nun ein Packstück P in Bewegungsrichtung x zugeführt, so führt dieses zu einem Ausstülpen der freigespannten Sehne S gemäß Fig. 4. Fig. 5 veranschaulicht, daß der Greifer 27 in Aufwärtsrichtung gefahren ist, während die obere Druckbacke 31 und die Halteklemme 34 vorgesteuert sind und das der Verschlußeinrichtung zugekehrte Umschnü­rungsmittelende 26′ erfassen und es einklemmen. Der Greifer 27 seinerseits öffnet dann. Gleichzeitig mit diesem Vorgang ist der Träger 19 mit seinem Arm 21 in Abwärtsrichtung gefahren und zieht dabei das Umschnü­rungsmittel 26 über die obere rechte Ecke des Packstücks P, und zwar in Förderrichtung gesehen. In seiner Tief­stellung taucht der Arm 21 in die von den Umlenkstellen gebildete Mulde 17 der Packstück-Förderstrecke 4 ein. Zufolge der spitzwinklig zur Packstück-Bewegungsrichtung x gelagerten Umlenkrolle 24 erstreckt sich nur der der Packstück-Rückseite zugekehrte Umschnürungsmittelab­schnitt in der Umschnürungsebene y-y.The following mode of action occurs: According to FIG. 1, the machine is in its starting position. The strapping means end 26 'is held by the gripper 27 and runs from there via the deflection rollers 25, 24, 22 to the arm 21 forming the strapping means guide member 21. There is then a free-stretched tendon S. Furthermore, in this position, the pressure jaw 31, the heating plate 32, the lower pressure jaw 33 and the holding clamp 34 are in the displaced position. This means that they do not extend in the tying plane yy. Furthermore, the carriage 3 has been moved towards the inlet end of the machine by means not shown. If a package P is now fed in the direction of movement x, this leads to an expansion of the free-stretched tendon S according to FIG. 4. FIG. 5 illustrates that the gripper 27 has moved in the upward direction, while the upper pressure jaw 31 and the holding clamp 34 are controlled and the strapping means end facing 26 'capture and clamp it. The gripper 27 in turn then opens. At the same time with during this process, the carrier 19 has moved its arm 21 in the downward direction and pulls the strapping means 26 over the upper right corner of the package P, as seen in the conveying direction. In its lowered position, the arm 21 plunges into the trough 17 of the package conveyor section 4 formed by the deflection points. As a result of the deflection roller 24 mounted at an acute angle to the package movement direction x, only the strapping middle section facing the back of the package extends in the strapping plane yy.

Der nächste Bewegungsschritt besteht darin, daß der geöffnete Greifer 27 in Abwärtsrichtung fährt unter Erzielung der Stellung gemäß Fig. 6, wobei das Ende des Umschnürungsmittels 26 den Greifer 27 verlassen hat.The next movement step is that the opened gripper 27 travels in the downward direction to achieve the position shown in FIG. 6, the end of the strapping means 26 having left the gripper 27.

Von der Verschlußeinrichtung gesteuert, tritt dann der Stößel 30 mit Rolle 29 vor unter Erzielung eines weite­ren eingestülpten Umschnürungsmittelabschnittes, vgl. Fig. 10. Dabei erfaßt die Rolle 29 ausschließlich den in der Umschnürungsebene y-y verlaufenden Umschnürungsmit­telabschnitt. Gleichzeitig mit dem Einsetzen der Bewe­gung des Stößels 30 oder zeitverschoben hierzu setzt sich der Wagen 3 in Packstück-Förderrichtung x in Bewe­gung, so daß bei dem dann folgenden Verschlußvorgang kein Stillstand des Packstückes P auftritt. Ferner fährt der Greifer 27 während dieses Vorganges zur anderen Seite der Druckbacke 31 und schließt, wodurch das Um­schnürungsmittel im Bereich der Verbindungsstelle an zwei Stellen gehalten ist.Controlled by the closure device, the plunger 30 with the roller 29 then comes forward to achieve a further indented section of the strapping means, cf. Fig. 10. In this case, the roller 29 only detects the middle section of the strapping which runs in the strapping plane y-y. Simultaneously with the onset of the movement of the plunger 30 or shifted in time therefrom, the carriage 3 sets in motion in the package conveying direction x, so that the package P then does not come to a standstill in the subsequent closing process. Furthermore, the gripper 27 moves to the other side of the pressure jaw 31 during this process and closes, as a result of which the strapping means is held at two points in the region of the connection point.

Es folgt nun der in Fig. 8 dargestellte nächste Arbeits­schritt. Dieser besteht darin, daß der geschlossene Greifer 27 in Aufwärtsrichtung fährt. Dann steuern die untere Druckbacke 33 und die Heizlamelle 32 vor. Die entsprechenden Umschnürungsmittelabschnitte werden dabei erhitzt. Danach fährt die Heizlamelle 32 zurück und die untere Druckbacke 33 in Aufwärtsrichtung, wobei die entsprechenden Umschnürungsmittelabschnitte verschweißt werden. Nach einer kurzen Abkühlzeit erfolgt eine Ab­wärtsbewegung des Greifers 27. Gleichzeitig wird das Umschnürungsmittel 26 über die der unteren Druckbacke 33 seitlich benachbarte Messerschneide 35 gezogen unter Durchtrennen des Umschnürungsmittels 26. Das dann vorlie­gende Umschnürungsmittelende ist ausschließlich vom Greifer 27 gehalten, vgl. Fig. 9. Die untere Druckbacke 33 öffnet nun und obere und untere Druckbacke fahren aus der Umschnürungsebene zurück, so daß das Packstück P ohne Stillstand weiter befördert wird. Aus Fig. 9 ist ersichtlich, daß der Greiferspalt 36 in der Horizontalen liegt. Nun fährt der Greifer 27 wieder zur anderen Seite der oberen Druckbacke 31 zurück und dreht dabei um 360°, während der Träger 19 mit dem Arm 21 wieder aufwärts­fährt unter Erreichen der Ausgangsstellung gemäß Fig. 1. Die Drehbewegung des Greifers 27 ist derart, daß dabei kein Umschnürungsmittel auf diesen aufgewickelt wird. Der Greiferspalt 36 hat sich somit im Takt während sei­ner Hin- und Rückbewegung um 360° gedreht.The next work step shown in FIG. 8 now follows. This consists in the closed gripper 27 traveling in the upward direction. Then the lower pressure jaw 33 and the heating plate 32 advance. The corresponding strapping sections are heated. Thereafter, the heating plate 32 moves back and the lower pressure jaw 33 in the upward direction, the corresponding strapping means sections being welded. After a short cooling time, the gripper 27 moves downward. At the same time, the strapping means 26 is pulled over the knife edge 35 that is adjacent to the lower pressure jaw 33, severing the strapping means 26. The end of the strapping means then present is held exclusively by the gripper 27, cf. Fig. 9. The lower pressure jaw 33 now opens and the upper and lower pressure jaws move back out of the tying level, so that the package P is conveyed on without stopping. From Fig. 9 it can be seen that the gripper gap 36 is horizontal. Now the gripper 27 moves back to the other side of the upper pressure jaw 31 and thereby rotates through 360 °, while the carrier 19 with the arm 21 moves up again, reaching the starting position according to FIG. 1. The rotary movement of the gripper 27 is such that no strapping agent is wound on it. The gripper gap 36 has thus rotated through 360 ° during its back and forth movement.

Sodann ist nach Freigabe des Packstückes auch der Wagen 3 wieder in seine Ausgangsstellung gemäß Fig. 1 zurückge­kehrt.Then, after the package has been released, the carriage 3 has also returned to its starting position according to FIG. 1.

Es kann jedoch erwünscht sein, daß das folgende Pack­stück P′ keine Umschnürung in der Maschine erhalten soll. Dann verbleibt der Träger 19 nach durchgeführter Umschnürung des zuletzt durchgelaufenen Packstückes P in seiner Tiefstellung. Das bedeutet, daß sich auch der Arm 21 in der Mulde 17 der Packstück-Förderstrecke 4 befin­det und demnach nicht im Bewegungsweg des Packstückes P′ liegt. Es findet somit kein Ausstülpen einer Umschnü­rungsmittelsehne statt. Entsprechend der Anzahl der nicht zu umschürenden Packstücke verbleibt der Träger 19 mit dem Arm in seiner Tiefstellung und kehrt erst dann in seine obere Stellung zurück, wenn Packstücke wieder umschnürt werden sollen, so daß nach einer entsprechen­den Aufwärtsverlagerung des Trägers mit Arm wiederum die Stellung gemäß Fig. 1 vorliegt.However, it may be desirable that the following package P 'should not have any strapping in the machine. The carrier 19 then remains in its low position after the strapping of the package P which has passed through last. This means that the arm 21 is located in the trough 17 of the package conveyor section 4 and therefore not in the path of movement of the package P ' lies. There is therefore no protrusion of a strapping tendon. Depending on the number of packages not to be re-crimped, the carrier 19 remains with its arm in its low position and only returns to its upper position when packages are to be tied again, so that after a corresponding upward displacement of the carrier with arm, the position in accordance with FIG 1 is present.

Alle in der Beschreibung erwähnten und in der Zeichnung dargestellten neuen Merkmale sind erfindungswesentlich, auch soweit sie in den Ansprüchen nicht ausdrücklich beansprucht sind.All the new features mentioned in the description and shown in the drawing are essential to the invention, even if they are not expressly claimed in the claims.

Claims (3)

1. Maschine zum Umschnüren von Packstücken (P) mit einem von einer Vorratsrolle abziehbaren Umschnürungsmittel (26), bei welcher das Packstück (P) durch Vorschub auf einer Packstück-Förderstrecke (4) eine quer zur Vorschub­bewegung (x) vom Zuführende zu einem Greifer (27) ge­spannte Sehne (S) austülpt, welche von dem unterhalb der Förderstrecke (4) angeordneten, einer Verschlußeinrich­tung (28) benachbarten Greifer (27) bis zu einem Umschnü­rungsmittel-Führungsglied reicht, welches aus einer Höhenlage oberhalb der Packstück-Oberseite bis in eine Höhenlage unterhalb der Förderstrecke (4) verlagerbar ist, dadurch gekennzeichnet, daß das Umschnürungsmittel-­Führungsglied als querseitig in den Bereich der Förder­strecke (4) reichender Arm (21) eines sich seitlich der Förderstrecke (4) auf- und abbewegenden Trägers (19) gestaltet ist und in Tiefstellung des Trägers (19) in eine durch Umlenkstellen (Umlenkwalzen 10, 11, 12, 13) gebildete, nach oben offene Mulde (17) der Förderstecke (4) eintaucht.1. Machine for strapping packages (P) with a strapping means (26) which can be pulled off from a supply roll, in which the package (P) by feeding on a package conveyor line (4) transversely to the feed movement (x) from the feed end to a gripper (27) taut tendon (S), which extends from the gripper (27) arranged below the conveyor section (4), a closure device (28) adjacent to a strapping means guide member, which extends from a height above the package top to a height position below the conveying section (4) can be shifted, characterized in that the strapping means guide member as an arm (21) of a carrier (19) which moves up and down the side of the conveying section (4) and extends laterally into the region of the conveying section (4) is designed and in the lowered position of the support (19) in a trough formed by deflection points (deflection rollers 10, 11, 12, 13) which is open at the top ( 17) the conveyor (4) is immersed. 2. Maschine, insbesondere nach Anspruch 1, dadurch ge­kennzeichnet, daß der Träger (19) und die Umlenkstellen (Umlenkwalzen 10, 11, 12) der Förderstrecke (4) auf einem gemeinsamen, in Bewegungsrichtung (x) des Packstük­kes (P, P′) vor- und zurückbewegenden Wagen (3) sitzen, in welchem auch der Greifer (27) und die Verschlußein­richtung (28) angeordnet sind,2. Machine, in particular according to claim 1, characterized in that the carrier (19) and the deflection points (deflection rollers 10, 11, 12) of the conveyor section (4) on a common, in the direction of movement (x) of the pack piece (P, P ' ) sit back and forth moving carriage (3), in which the gripper (27) and the locking device (28) are arranged, 3. Maschine, insbesondere nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Förderstrecke (4) aus zwei parallellaufenden Riemen­trieben (5, 6) besteht, die einen Spalt (7) zum Durch­tritt eines das Umschnürungsmittel (26) von rückwärts in Richtung der Verschlußeinrichtung (28) einstülpenden Stößels (30) belassen.3. Machine, in particular according to one or more of the preceding claims, characterized in that the conveyor section (4) consists of two parallel belt drives (5, 6) which have a gap (7) for the passage of the strapping means (26) from the back in Leave the plunger (30) in the direction of the closure device (28).
EP90109096A 1989-06-08 1990-05-15 Machine for binding packages Expired - Lifetime EP0401554B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918674 1989-06-08
DE3918674A DE3918674A1 (en) 1989-06-08 1989-06-08 MACHINE FOR RESTORING PACKAGES

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EP0401554A1 true EP0401554A1 (en) 1990-12-12
EP0401554B1 EP0401554B1 (en) 1992-02-26

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EP90109096A Expired - Lifetime EP0401554B1 (en) 1989-06-08 1990-05-15 Machine for binding packages

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EP (1) EP0401554B1 (en)
AT (1) ATE72794T1 (en)
DE (2) DE3918674A1 (en)
DK (1) DK0401554T3 (en)
ES (1) ES2030602T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015486A1 (en) * 1991-03-06 1992-09-17 Maschinenfabrik Gerd Mosca Gmbh Process and machine for tying up parcels or stacks with a ribbon of solderable plastics material
ITMI20081417A1 (en) * 2008-07-30 2010-01-31 Sestese Off Mec STRIPPING DEVICE IN PASSAGE.
EP2149448A2 (en) 2008-07-30 2010-02-03 OFFICINA MECCANICA SESTESE S.p.A. Pile-strapping machine with straps made of weldable plastic material
ITMI20111711A1 (en) * 2011-09-22 2013-03-23 Sestese Off Mec PASSAGE PACKAGING EQUIPMENT WITH MULTIFORMED FEEDER.
EP3045398A1 (en) 2015-01-15 2016-07-20 ATS-Tanner Banding Systems AG Method for bending strips around objects and corresponding machines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064466A (en) * 1979-12-08 1981-06-17 Buettner Hans Hugo Machine for binding packages
EP0178385A1 (en) * 1984-10-18 1986-04-23 Hans Hugo Büttner Package tying machine

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Publication number Priority date Publication date Assignee Title
CH573328A5 (en) * 1973-10-05 1976-03-15 Pester Emil Platinen U Apparat
DE2935028C2 (en) * 1979-08-30 1986-10-23 Maschinenfabrik Gerd Mosca Gmbh, 6931 Zwingenberg Strapping machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2064466A (en) * 1979-12-08 1981-06-17 Buettner Hans Hugo Machine for binding packages
EP0178385A1 (en) * 1984-10-18 1986-04-23 Hans Hugo Büttner Package tying machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015486A1 (en) * 1991-03-06 1992-09-17 Maschinenfabrik Gerd Mosca Gmbh Process and machine for tying up parcels or stacks with a ribbon of solderable plastics material
ITMI20081417A1 (en) * 2008-07-30 2010-01-31 Sestese Off Mec STRIPPING DEVICE IN PASSAGE.
EP2149448A2 (en) 2008-07-30 2010-02-03 OFFICINA MECCANICA SESTESE S.p.A. Pile-strapping machine with straps made of weldable plastic material
EP2149448A3 (en) * 2008-07-30 2010-03-10 OFFICINA MECCANICA SESTESE S.p.A. Pile-strapping machine with straps made of weldable plastic material
ITMI20111711A1 (en) * 2011-09-22 2013-03-23 Sestese Off Mec PASSAGE PACKAGING EQUIPMENT WITH MULTIFORMED FEEDER.
EP2572999A1 (en) * 2011-09-22 2013-03-27 OFFICINA MECCANICA SESTESE S.p.A. Vertical-curtain wrapping apparatus with multiformat feeder
EP3045398A1 (en) 2015-01-15 2016-07-20 ATS-Tanner Banding Systems AG Method for bending strips around objects and corresponding machines
US10865004B2 (en) 2015-01-15 2020-12-15 Ats-Tanner Banding Systems Ag Method for wrapping bands around objects, and corresponding machines

Also Published As

Publication number Publication date
ES2030602T3 (en) 1992-11-01
DE59000049D1 (en) 1992-04-02
EP0401554B1 (en) 1992-02-26
DE3918674A1 (en) 1990-12-13
DK0401554T3 (en) 1992-03-23
ATE72794T1 (en) 1992-03-15

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