EP1555207B1 - Apparatus for mounting valve bags on filling spouts of a filling machine. - Google Patents

Apparatus for mounting valve bags on filling spouts of a filling machine. Download PDF

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Publication number
EP1555207B1
EP1555207B1 EP20040027966 EP04027966A EP1555207B1 EP 1555207 B1 EP1555207 B1 EP 1555207B1 EP 20040027966 EP20040027966 EP 20040027966 EP 04027966 A EP04027966 A EP 04027966A EP 1555207 B1 EP1555207 B1 EP 1555207B1
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EP
European Patent Office
Prior art keywords
valve
positioning element
bags
bag
filling
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EP20040027966
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German (de)
French (fr)
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EP1555207A1 (en
Inventor
Bernhard Dipl.-Ing. Stövesand
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Haver and Boecker OHG
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Haver and Boecker OHG
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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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/262—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks opening of valve bags

Definitions

  • the invention relates to a device for attaching valve bags to the filling tubes of a filling machine, in which the réellesteck valve bags lie lying flat in a bundle on a controllable lifting table and the means of a transverse to the bag longitudinal edges arranged above the lifting table horizontal lifting device of the lying flat Position are movable in a suspended transport position and can be transferred to a valve opening and transport means so that they can be transported under opening of the valve.
  • a device is e.g. from EP-A-1 024 084.
  • the device in question is used in particular for attaching valve bags to the filling tubes of rotating filling machines, but also for stationary filling machines.
  • the stationarily arranged device is then radially to the respective filling tube, so that the réellestekkenden valve sacks are positioned to the filling tubes by an appropriate control that mutatis mutandis the valve sacks are shot.
  • the individual bundles are fed to the lifting table after Depaletti für a conveyor. This is controlled in height so adjustable, that an always constant positioning relative to the lifting device is given.
  • This lifting device usually consists of a suction bar whose vacuum is controlled.
  • the pivot axis of the lifting device is in the direction of the transport device for supplying the valve bags to the filling tubes.
  • the lifting device or the suction cups of the suction strip grip the valve bag in the region below the transverse edge associated with the valve.
  • the lifting device transfers the valve bags to mold elements that are designed to open the valves.
  • the transport takes place by a belt conveyor whose deflection rollers are rotatable about vertical axes and rollers which can be pressed against the belt conveyor.
  • the belt conveyor can be driven at the appropriate speed, while the rollers are freely rotatably mounted.
  • valve bags In the case of valve sacks, a distinction is made between sacks with folded and glued bottoms and so-called sewn sacks.
  • the sewn valve bags are usually designed as multi-layered valve bags.
  • Valve bags are also known, which consist of a plastic film or a plastic fabric.
  • valve bags are usually only used in regions where valve sacks with folded and glued bottoms can not be used for reasons of the prevailing climate.
  • the sewn valve bags are subject to the disadvantage compared to the valve bags with folded and glued bottoms, that the valves are inferior in size relatively large fluctuations. This results in that the valve bags are not transported with their valves in the correct position to the filling tubes, so that the plugging is not possible. This results in that the maximum possible performance of a slip-on device is not achieved.
  • the invention has for its object to design a device of the kind described in more detail so that the number of réellesteckenden in a unit of time valve sacks is increased, and that is always guaranteed especially for valves with relatively large fluctuations in the sizes that every bag correctly placed on the filling tube or shot.
  • the device is equipped with a positioning element for each lying in the top of the bundle valve bag, which positively and / or non-positively detects the valve bag and moves with the valve associated with the transverse edge against a stationary stop.
  • a structurally simple solution is obtained if the positioning element is pivotable about an axis parallel and spaced from the stationary stop, that this is placed on the valve associated region of the respective valve bag, and that the positioning by means of a linear drive in the direction of the stationary stop and is movable in the opposite direction. Due to the pivoting of the positioning about the horizontal axis ensures that immediately after the process of the respective valve accumulator to the stationary stop this valve bag is released, so that it can be taken over unhindered by the lifting device.
  • the controlled linear drive it is possible that the positioning is moved back in the simplest way in the starting position for alignment of the next valve bag.
  • both the pivot drive and the linear drive is designed as a piston-cylinder unit. Such components are commercially available and therefore inexpensive to purchase and also exactly controllable.
  • the device is designed for attaching sewn valve sacks of the usual bag materials, in which the areas associated with the transverse edges are surrounded by rider bands or in which the end portions are folded back on itself.
  • the seams extending transversely to the bag longitudinal edges are in a small distance, relative to the width of the rider band or the folded-back region, from the free transverse edges of the bags.
  • the positioning element is strip-shaped and engages behind the free edge of the respective rider band or the edge of the folded-back region after placement on the respective upper valve bag in the process in the direction of the pivot axis or in the direction of the stationary stop ,
  • This embodiment is extremely simple and it is also ensured by a certain length of the strip-shaped positioning that the aligned valve bag is not vereckckt or tilted.
  • the device could also be designed so that it also valve bags can be plugged, which are made of plastic films.
  • the friction between the superimposed walls is significantly lower in these valve bags than if they are made of paper.
  • the positioning element is provided with a flat anti-slip coating or an anti-slip coating, so that the entrainment of each lying in the bundle overhead valve bag is non-positively.
  • the positioning should be provided in such a use with a resting on the respective upper valve bag plate.
  • the stationary stop is attached in a preferred embodiment on the machine frame and extends into the range of movement of the alignment.
  • the stopper is for example angular, so that a mounting foot can be screwed onto a horizontal part of the machine frame.
  • the vertical leg then forms the stop for the bundle. However, it extends only to a height that the upper area still retains a stop function, but does not hinder the movement of the linear drive for the righting.
  • the lifting table is vertically displaceable by at least one linear drive, for example by a controlled piston-cylinder unit and guided in vertical guides so that the upper valve bag in the bundle is always at the same level or approximately at the same height.
  • the device 10 shown in Figure 1 for attaching sewn valve bags from the usual bag materials is shown only partially for the sake of simplicity.
  • the device 10 includes a lifting table 11, on which the valve bags to be réellesteck are placed in a bundle 12.
  • the valve sacks are embraced at both ends with not shown Reiterbändem, with the seams are at close distances to the free edges of the rider bands.
  • a left corner as shown in FIG. 1 contains the valve for filling the valve bag.
  • the lifting table 11 is moved by a linear drive, for example in the form of a piston-cylinder unit 13 during the separation of the valve bags of the bundle 12 upwards, so that the respective valve bag at the top is always maintained at the same level.
  • the bundle 12 is not completely drawn.
  • the device 10 is arranged on a machine frame 14.
  • This machine frame 14 is provided with an angular, stationary stop 15, whose vertical leg extends into the region of an aligning element 16 which will be explained in more detail.
  • the valve bags 12 lying in the bundle are placed on the lifting table 11 in such a way that the end regions containing the valve face the stop 15.
  • the actual stop is the vertical leg.
  • This vertical leg extends approximately over the entire height of a laid on the lifting table 11 bundle, from which no valve bag has been deducted.
  • a movable alignment member 16 is mounted, which by means of a Linear drive in the form of a piston-cylinder unit 17 is movable back and forth, in the horizontal direction.
  • the piston-cylinder unit 17 is also pivotally mounted, and is pivoted with a further linear drive in the form of a piston-cylinder unit 18 whose point of application is outside the pivot point of the piston-cylinder unit 17, about a horizontal axis parallel and is at a distance to the stop 15, or parallel and spaced from the transport direction of the isolated valve sacks, before they are plugged onto a filling tube.
  • the alignment member 16 pivots from the pivoted position 16 'in the direction of arrow A on the bag bundle 12 and initially reaches an extended position 16 " Alignment bar 16a fitted, which engages behind the free edge of the rider belt when retracting the alignment element 16, so that it is ensured that the valve of the respective valve bag associated transverse edge rests against the vertical leg of the stop 15. As a result, an exact alignment is always given.
  • the valve opening device and the transport device consist, for example, of two conveyors connected in series, with a first belt conveyor cooperating with a pivotable roller arrangement and the second, i.e., with a conveyor belt.
  • the conveyor facing the conveyor is designed as a double belt conveyor.
  • the device 10 could also be used for separating valve bags, which are made of plastic films.
  • the alignment element 16 would then have on the lifting table 11 facing side with a flat anti-slip coating or an anti-slip coating be provided so that it is ensured that the contacting valve bag is force or frictionally entrained.
  • the invention is not limited to the illustrated embodiment. It is essential that preferably sewn valve bags with arranged in the end regions rider bands due to the relatively large fluctuations in the valve sizes, the valve bags are aligned exactly before pulling off the bundle 12. This ensures that the valve is fed to the filling tube in an optimal position, so that it is ensured that it can also be plugged. This optimizes the performance of the slip-on device.
  • sutured valve bags which have been omitted to reduce costs on rider straps and the closure is done by folding and sewing the valve tube.

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

Description

Die Erfindung betrifft eine Vorrichtung zum Aufstecken von Ventilsäcken auf die Füllrohre einer Füllmaschine, bei der die aufzusteckenden Ventilsäcke flachliegend in einem Bündel auf einem steuerbaren Hubtisch aufliegen und die mittels einer um eine oberhalb des Hubtisches quer zu den Sacklängskanten angeordnete Horizontalachse schwenkbare Anhebebevorrichtung von der flach liegenden Lage in eine hängende Transportstellung bewegbar sind und an eine Ventilöffnungs- und Transporteinrichtung übergebbar sind, so daß sie unter Öffnung des Ventils transportierbar sind. Eine derartige Vorrichtung ist z.B. aus der EP-A-1 024 084 bekannt.The invention relates to a device for attaching valve bags to the filling tubes of a filling machine, in which the aufzusteck valve bags lie lying flat in a bundle on a controllable lifting table and the means of a transverse to the bag longitudinal edges arranged above the lifting table horizontal lifting device of the lying flat Position are movable in a suspended transport position and can be transferred to a valve opening and transport means so that they can be transported under opening of the valve. Such a device is e.g. from EP-A-1 024 084.

Die in Rede stehende Vorrichtung wird insbesondere zum Aufstecken von Ventilsäcken auf die Füllrohre von rotierenden Füllmaschinen, jedoch auch für stationäre Füllmaschinen eingesetzt. Die stationär angeordnete Vorrichtung steht dann radial zum jeweiligen Füllrohr, so daß durch eine entsprechende Steuerung die aufzustekkenden Ventilsäcke so zu den Füllrohren positioniert sind, daß sinngemäß die Ventilsäcke aufgeschossen werden. Die einzelnen Bündel werden nach der Depalettierung mittels eines Förderers dem Hubtisch zugeführt. Dieser ist in der Höhe so gesteuert verstellbar, daß eine stets gleichbleibende Positionierung gegenüber der Anhebevorrichtung gegeben ist. Diese Anhebevorrichtung besteht üblicherweise aus einer Saugerleiste, deren Vakuum gesteuert wird. Die Schwenkachse der Anhebevorrichtung steht in Richtung der Transporteinrichtung zur Zufuhr der Ventilsäcke zu den Füllrohren. Die Anhebevorrichtung bzw. die Saugnäpfe der Saugerleiste greifen den Ventilsack im Bereich unterhalb der dem Ventil zugeordneten Querkante. Die Anhebevorrichtung übergibt die Ventilsäcke an Formelemente, die so ausgelegt sind, daß die Ventile geöffnet werden. Der Transport erfolgt durch einen Bandförderer, dessen Umlenkrollen um vertikale Achsen drehbar sind und an den Bandförderer andrückbaren Rollen. Der Bandförderer ist mit der entsprechenden Geschwindigkeit antreibbar, während die Rollen frei drehbar gelagert sind.The device in question is used in particular for attaching valve bags to the filling tubes of rotating filling machines, but also for stationary filling machines. The stationarily arranged device is then radially to the respective filling tube, so that the aufzustekkenden valve sacks are positioned to the filling tubes by an appropriate control that mutatis mutandis the valve sacks are shot. The individual bundles are fed to the lifting table after Depalettierung by means of a conveyor. This is controlled in height so adjustable, that an always constant positioning relative to the lifting device is given. This lifting device usually consists of a suction bar whose vacuum is controlled. The pivot axis of the lifting device is in the direction of the transport device for supplying the valve bags to the filling tubes. The lifting device or the suction cups of the suction strip grip the valve bag in the region below the transverse edge associated with the valve. The lifting device transfers the valve bags to mold elements that are designed to open the valves. The transport takes place by a belt conveyor whose deflection rollers are rotatable about vertical axes and rollers which can be pressed against the belt conveyor. The belt conveyor can be driven at the appropriate speed, while the rollers are freely rotatably mounted.

Derartige Aufsteckvorrichtungen haben sich auch in der Praxis bestens bewährt. Bei den Ventilsäcken unterscheidet man zwischen Säcken mit gefalteten und geklebten Böden und sog. genähten Säcken. Die genähten Ventilsäcke sind normalerweise als mehrlagige Ventilsäcke ausgebildet. Es sind ferner auch noch Ventilsäcke bekannt, die aus einer Kunststoffolie oder einem Kunststoffgewebe bestehen.Such Aufsteckvorrichtungen have proven themselves well in practice. In the case of valve sacks, a distinction is made between sacks with folded and glued bottoms and so-called sewn sacks. The sewn valve bags are usually designed as multi-layered valve bags. Valve bags are also known, which consist of a plastic film or a plastic fabric.

Die genähten Ventilsäcke werden heute üblicherweise nur noch in Regionen eingesetzt, bei denen aus Gründen des dort herrschenden Klimas Ventilsäcke mit gefalteten und geklebten Böden nicht einsetzbar sind. Die genähten Ventilsäcke sind jedoch gegenüber den Ventilsäcken mit gefalteten und geklebten Böden mit dem Nachteil behaftet, daß die Ventile in der Größe relativ großen Schwankungen unterlegen sind. Dies führt dazu, daß die Ventilsäcke mit ihren Ventilen nicht positionsgerecht zu den Füllrohren antransportiert werden, so daß das Aufstecken nicht möglich ist. Dies führt dazu, daß die maximal mögliche Leistung einer Aufsteckvorrichtung nicht erreicht wird.Today, the sewn valve sacks are usually only used in regions where valve sacks with folded and glued bottoms can not be used for reasons of the prevailing climate. However, the sewn valve bags are subject to the disadvantage compared to the valve bags with folded and glued bottoms, that the valves are inferior in size relatively large fluctuations. This results in that the valve bags are not transported with their valves in the correct position to the filling tubes, so that the plugging is not possible. This results in that the maximum possible performance of a slip-on device is not achieved.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs näher beschriebenen Art so zu gestalten, daß die Anzahl der in einer Zeiteinheit aufzusteckenden Ventilsäcke erhöht wird, und daß besonders bei Ventilen mit relativ großen Schwankungen in den Größen stets gewährleistet ist, daß auch jeder Sack positionsgerecht auf das Füllrohr aufgesteckt bzw. aufgeschossen wird.The invention has for its object to design a device of the kind described in more detail so that the number of aufzusteckenden in a unit of time valve sacks is increased, and that is always guaranteed especially for valves with relatively large fluctuations in the sizes that every bag correctly placed on the filling tube or shot.

Die gestellte Aufgabe wird gelöst, indem die Vorrichtung mit einem Positionierelement für den jeweils oben im Bündel liegenden Ventilsack ausgestattet ist, welches den Ventilsack form- und/oder kraftschlüssig erfaßt und mit der dem Ventil zugeordneten Querkante gegen einen ortsfesten Anschlag bewegt.This object is achieved by the device is equipped with a positioning element for each lying in the top of the bundle valve bag, which positively and / or non-positively detects the valve bag and moves with the valve associated with the transverse edge against a stationary stop.

Beim Antransport der zu vereinzelnden Bündel ist es unvermeidbar, daß die Ventilsäcke ein klein wenig verrutschen, d.h. eine kantengerade Stapelung ist nicht mehr gewährleistet. Dadurch liegen die den Ventilen zugeordneten Querkanten der Ventilsäcke nicht stets in gleicher Höhe oder andersherum ausgedrückt, die Lage zu den Füllrohren schwankt nach der Vereinzelung innerhalb von Grenzen, die dazu führen, daß der Aufsteckvorgang nicht ordnungsgemäß durchführbar ist. Durch das Positionierelement in Verbindung mit dem ortsfesten Anschlag ist jedoch nunmehr gewährleistet, daß die den Ventilen zugeordneten Querkanten stets in gleicher Position zur Transport- und Öffnungsstation und somit auch positionsgerecht zu den Füllrohren stehen. Durch die exakte Ausrichtung vor der Übernahme durch die Anhebevorrichtung bzw. durch die Saugerleiste wird diese Position erreicht. Die Leistung kann demzufolge den heuten Erfordernissen voll gerecht werden.When transporting the bundles to be separated, it is inevitable that the valve bags slip a little bit, i. a straight edge stacking is no longer guaranteed. As a result, the transverse edges of the valve sacks associated with the valves are not always at the same level or the other way round, the position to the filling tubes varies within a certain range after separation, which results in the attaching process not being able to be carried out properly. However, it is now ensured by the positioning element in conjunction with the fixed stop that the transverse edges assigned to the valves are always in the same position for the transport and opening station and thus also in the correct position relative to the filling tubes. Due to the exact alignment before the takeover by the lifting device or by the suction bar this position is achieved. The performance can therefore fully meet today's requirements.

Eine konstruktiv einfache Lösung ergibt sich, wenn das Positionierelement um eine parallel und im Abstand zum ortsfesten Anschlag stehende Achse schwenkbar ist, daß dieses auf den dem Ventil zugeordneten Bereich des jeweiligen Ventilsackes aufsetzbar ist, und daß das Positionierelement mittels eines Linearantriebes in Richtung zum ortsfesten Anschlag und in der entgegengesetzten Richtung verfahrbar ist. Durch die Schwenkbarkeit des Positionierelementes um die Horizontalachse ist gewährleistet, daß unmittelbar nach dem Verfahren des jeweiligen Ventilsakkes an den Ortsfesten Anschlag dieser Ventilsack freigegeben wird, so daß er von der Anhebevorrichtung ungehindert übernommen werden kann. Durch den gesteuerten Linearantrieb ist es möglich, daß das Positionierelement in einfachster Weise in die Ausgangsstellung zur Ausrichtung des nächstfolgenden Ventilsackes zurückbewegt wird. In einfachster Ausführung ist sowohl der Schwenkantrieb als auch der Linearantrieb als Kolben-Zylinder-Einheit ausgebildet. Derartige Bauteile sind handelsüblich und demzufolge kostengünstig zu beziehen und außerdem exakt steuerbar.A structurally simple solution is obtained if the positioning element is pivotable about an axis parallel and spaced from the stationary stop, that this is placed on the valve associated region of the respective valve bag, and that the positioning by means of a linear drive in the direction of the stationary stop and is movable in the opposite direction. Due to the pivoting of the positioning about the horizontal axis ensures that immediately after the process of the respective valve accumulator to the stationary stop this valve bag is released, so that it can be taken over unhindered by the lifting device. The controlled linear drive, it is possible that the positioning is moved back in the simplest way in the starting position for alignment of the next valve bag. In the simplest embodiment, both the pivot drive and the linear drive is designed as a piston-cylinder unit. Such components are commercially available and therefore inexpensive to purchase and also exactly controllable.

In bevorzugter Ausführung ist die Vorrichtung zum Aufstecken von genähten Ventilsäcken aus den üblichen Sackmaterialien ausgelegt, bei denen die den Querkanten zugeordneten Bereiche von Reiterbändern umgeben sind oder bei denen die Endbereiche auf sich selbst zurückgefaltet sind . Die quer zu den Sacklängskanten verlaufenden Nähnähte stehen in einem, bezogen auf die Breite des Reiterbandes oder des zurückgefalteten Bereiches geringen Abstand zu den freien Querkanten der Säcke. Bei einer solchen Vorrichtung ist vorgesehen, daß das Positionierelement leistenförmig gestaltet ist und nach dem Aufsetzen auf den jeweils oberen Ventilsack beim Verfahren in Richtung zu der Schwenkachse bzw. in Richtung zum ortsfesten Anschlag die freie Kante des jeweiligen Reiterbandes bzw. der Kante des zurückgefalteten Bereiches hintergreift. Diese Ausführung ist äußerst einfach und es ist außerdem durch eine bestimmte Länge des leistenförmigen Positionierelementes sichergestellt, daß sich der ausgerichtete Ventilsack nicht vereckt oder verkantet.In a preferred embodiment, the device is designed for attaching sewn valve sacks of the usual bag materials, in which the areas associated with the transverse edges are surrounded by rider bands or in which the end portions are folded back on itself. The seams extending transversely to the bag longitudinal edges are in a small distance, relative to the width of the rider band or the folded-back region, from the free transverse edges of the bags. In such a device, it is provided that the positioning element is strip-shaped and engages behind the free edge of the respective rider band or the edge of the folded-back region after placement on the respective upper valve bag in the process in the direction of the pivot axis or in the direction of the stationary stop , This embodiment is extremely simple and it is also ensured by a certain length of the strip-shaped positioning that the aligned valve bag is not vereckckt or tilted.

Die Vorrichtung könnte jedoch auch so ausgelegt sein, daß damit auch Ventilsäcke aufgesteckt werden können, die aus Kunststoffolien gefertigt sind. Die Reibung zwischen den aufeinanderliegenden Wandungen ist bei diesen Ventilsäcken deutlich geringer als wenn sie aus Papier gefertigt sind. Es ist bei einer solchen Vorrichtung vorgesehen, daß das Positionierelement mit einem flächigen Antirutschbelag oder einer Antirutschbeschichtung versehen ist, so daß die Mitnahme des jeweils im Bündel oben liegenden Ventilsackes kraftschlüssig erfolgt. Das Positionierelement sollte bei einer solchen Verwendung mit einer auf den jeweils oberen Ventilsack aufliegenden Platte versehen sein.However, the device could also be designed so that it also valve bags can be plugged, which are made of plastic films. The friction between the superimposed walls is significantly lower in these valve bags than if they are made of paper. It is provided in such a device, that the positioning element is provided with a flat anti-slip coating or an anti-slip coating, so that the entrainment of each lying in the bundle overhead valve bag is non-positively. The positioning should be provided in such a use with a resting on the respective upper valve bag plate.

Der ortsfeste Anschlag ist in bevorzugter Ausführung am Maschinengestell befestigt und erstreckt sich bis in den Bewegungsbereich des Ausrichtelementes. Der Anschlag ist beispielsweise winkelförmig ausgebildet, so daß ein Befestigungsfuß auf einem horizontalen Teil des Maschinengestells geschraubt werden kann. Der vertikale Schenkel bildet dann den Anschlag für das Bündel. Er erstreckt sich jedoch nur bis zu einer Höhe, daß der obere Bereich noch eine Anschlagfunktion behält, aber nicht die Bewegung des Linearantriebes für das Aufrichtelement behindert.The stationary stop is attached in a preferred embodiment on the machine frame and extends into the range of movement of the alignment. The stopper is for example angular, so that a mounting foot can be screwed onto a horizontal part of the machine frame. The vertical leg then forms the stop for the bundle. However, it extends only to a height that the upper area still retains a stop function, but does not hinder the movement of the linear drive for the righting.

Es ist ferner vorgesehen, daß der Hubtisch durch wenigstens einen Linearantrieb, beispielsweise durch eine gesteuerte Kolben-Zylinder-Einheit vertikal verfahrbar und in Vertikalführungen derart geführt ist, daß der jeweils obere Ventilsack im Bündel stets auf gleicher Höhe oder annähernd auf gleicher Höhe liegt.It is further contemplated that the lifting table is vertically displaceable by at least one linear drive, for example by a controlled piston-cylinder unit and guided in vertical guides so that the upper valve bag in the bundle is always at the same level or approximately at the same height.

Anhand der beiliegenden Zeichnung wird die Erfindung noch näher erläutert. Es zeigt:

Figur 1
die erfindungsgemäße Vorrichtung im Aufriß mit Blick auf den Anschlag gesehen bzw. quer zur Bewegung für die Zufuhr zum Füllrohr.
Reference to the accompanying drawings, the invention will be explained in more detail. It shows:
FIG. 1
the device of the invention seen in elevation with a view of the stop or transverse to the movement for the supply to the filling tube.

Die in der Figur 1 dargestellte Vorrichtung 10 zum Aufstecken von genähten Ventilsäcken aus den üblichen Sackmaterialien ist aus Gründen der vereinfachten Darstellung nur teilweise dargestellt. Die Vorrichtung 10 enthält einen Hubtisch 11, auf den die aufzusteckenden Ventilsäcke in einem Bündel 12 aufgelegt sind. Die Ventilsäcke sind an beiden Enden mit nicht näher dargestellten Reiterbändem umgriffen, wobei in geringen Abständen zu den freien Kanten der Reiterbänder die Nähnähte liegen. Eine gemäß der Darstellung nach der Figur 1 linke Ecke enthält das Ventil zum Füllen des Ventilsackes. Der Hubtisch 11 wird von einem Linearantrieb beispielsweise in Form einer Kolben-Zylinder-Einheit 13 während der Vereinzelung der Ventilsäcke des Bündels 12 nach oben bewegt, damit der jeweils oben liegende Ventilsack stets auf gleichem Niveau gehalten wird. Aus Gründen der Darstellung ist jedoch das Bündel 12 nicht vollständig gezeichnet.The device 10 shown in Figure 1 for attaching sewn valve bags from the usual bag materials is shown only partially for the sake of simplicity. The device 10 includes a lifting table 11, on which the valve bags to be aufzusteck are placed in a bundle 12. The valve sacks are embraced at both ends with not shown Reiterbändem, with the seams are at close distances to the free edges of the rider bands. A left corner as shown in FIG. 1 contains the valve for filling the valve bag. The lifting table 11 is moved by a linear drive, for example in the form of a piston-cylinder unit 13 during the separation of the valve bags of the bundle 12 upwards, so that the respective valve bag at the top is always maintained at the same level. For the sake of illustration, however, the bundle 12 is not completely drawn.

Die Vorrichtung 10 ist an einem Maschinengestell 14 angeordnet. Dieses Maschinengestell 14 ist mit einem winkelförmigen, ortsfesten Anschlag 15 versehen, dessen vertikaler Schenkel sich bis in den Bereich eines noch näher erläuterten Ausrichtelementes 16 erstreckt. Die im Bündel liegenden Ventilsäcke 12 sind so auf dem Hubtisch 11 abgelegt, daß die das Ventil enthaltenden Endbereiche dem Anschlag 15 zugewandt liegen. Den eigentlichen Anschlag bildet der vertikale Schenkel. Dieser vertikale Schenkel erstreckt sich in etwa über die gesamte Höhe eines auf den Hubtisch 11 aufgelegten Bündels, aus dem noch kein Ventilsack abgezogen wurde. Im Bereich des oberen Endes des Anschlages 15 bzw. des vertikalen Schenkels ist ein bewegliches Ausrichtelement 16 montiert, welches mittels eines Linearantriebes in Form einer Kolben-Zylinder-Einheit 17 hin und her verfahrbar ist, und zwar in horizontaler Richtung. Die Kolben-Zylinder-Einheit 17 ist außerdem schwenkbar gelagert, und wird mit einem weiteren Linearantrieb in Form einer Kolben-Zylinder-Einheit 18, deren Angriffspunkt außerhalb des Drehpunktes der Kolben-Zylinder-Einheit 17 liegt, um eine Horizontalachse geschwenkt, die parallel und im Abstand zum Anschlag 15 steht, bzw. parallel und im Abstand zur Transportrichtung der vereinzelten Ventilsäcke verläuft, bevor diese auf ein Füllrohr aufgesteckt werden. Nach dem Abtransport des oberen Ventilsackes im Bündel 12 und ein entsprechendes Anheben des Hubtisches 11 schwenkt das Ausrichtelement 16 von der ausgeschwenkten Stellung 16' in Richtung des Pfeiles A auf das Sackbündel 12 zu und erreicht zunächst eine ausgefahrene Stellung 16". Das Ausrichtelement ist mit einer Ausrichtleiste 16a ausgestattet, die beim Einfahren des Ausrichtelementes 16 die freie Kante des Reiterbandes hintergreift, so daß sichergestellt ist, daß die dem Ventil des jeweiligen Ventilsackes zugeordnete Querkante an dem vertikalen Schenkel des Anschlages 15 anliegt. Dadurch ist stets eine exakte Ausrichtung gegeben.The device 10 is arranged on a machine frame 14. This machine frame 14 is provided with an angular, stationary stop 15, whose vertical leg extends into the region of an aligning element 16 which will be explained in more detail. The valve bags 12 lying in the bundle are placed on the lifting table 11 in such a way that the end regions containing the valve face the stop 15. The actual stop is the vertical leg. This vertical leg extends approximately over the entire height of a laid on the lifting table 11 bundle, from which no valve bag has been deducted. In the region of the upper end of the stop 15 and the vertical leg, a movable alignment member 16 is mounted, which by means of a Linear drive in the form of a piston-cylinder unit 17 is movable back and forth, in the horizontal direction. The piston-cylinder unit 17 is also pivotally mounted, and is pivoted with a further linear drive in the form of a piston-cylinder unit 18 whose point of application is outside the pivot point of the piston-cylinder unit 17, about a horizontal axis parallel and is at a distance to the stop 15, or parallel and spaced from the transport direction of the isolated valve sacks, before they are plugged onto a filling tube. After the removal of the upper valve bag in the bundle 12 and a corresponding lifting of the lifting table 11, the alignment member 16 pivots from the pivoted position 16 'in the direction of arrow A on the bag bundle 12 and initially reaches an extended position 16 " Alignment bar 16a fitted, which engages behind the free edge of the rider belt when retracting the alignment element 16, so that it is ensured that the valve of the respective valve bag associated transverse edge rests against the vertical leg of the stop 15. As a result, an exact alignment is always given.

Nach dem Ausrichten des jeweils oberen Ventilsackes und Hochschwenken des Ausrichtelementes 16 in die Stellung 16' setzt eine nicht dargestellte Saugerleiste im Abstand zu der dem Ventil zugeordneten Querkante auf und nimmt den Sack infolge der Saugwirkung mit, so daß er zunächst frei hängt. Die Saugleiste wird um eine Horizontalachse geschwenkt, die senkrecht zur Zeichenebene steht. Der Ventilsack wird dann mittels einer Transport- und Ventilöffnungsvorrichtung auf das Füllrohr einer nicht dargestellten Füllmaschine aufgesteckt.After aligning the respective upper valve bag and pivoting the Ausrichtelementes 16 in the position 16 'sets a suction bar, not shown, at a distance to the valve associated with the transverse edge and takes the sack as a result of the suction, so that it initially hangs freely. The squeegee is pivoted about a horizontal axis that is perpendicular to the drawing plane. The valve bag is then attached by means of a transport and valve opening device on the filling tube of a filling machine, not shown.

Die Ventilöffnungsvorrichtung und die Transportvorrichtung bestehen beispielsweise aus zwei hintereinander geschalteten Förderern, wobei ein erster Bandförderer mit einer schwenkbaren Rollenanordnung zusammenwirkt und der zweite, d.h. der Füllmaschine zugewandt liegende Förderer als Doppelbandförderer ausgebildet ist.The valve opening device and the transport device consist, for example, of two conveyors connected in series, with a first belt conveyor cooperating with a pivotable roller arrangement and the second, i.e., with a conveyor belt. the conveyor facing the conveyor is designed as a double belt conveyor.

Die Vorrichtung 10 könnte auch zur Vereinzelung von Ventilsäcken eingesetzt werden, die aus Kunststoffolien gefertigt sind. Das Ausrichtelement 16 müßte dann an der dem Hubtisch 11 zugewandten Seite mit einem flächigen Antirutschbelag oder einer Antirutschbeschichtung versehen sein, so daß gewährleistet ist, daß der kontaktierende Ventilsack kraft- bzw. reibschlüssig mitgenommen wird.The device 10 could also be used for separating valve bags, which are made of plastic films. The alignment element 16 would then have on the lifting table 11 facing side with a flat anti-slip coating or an anti-slip coating be provided so that it is ensured that the contacting valve bag is force or frictionally entrained.

Die Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Wesentlich ist, daß bevorzugt bei genähten Ventilsäcken mit in den Endbereichen angeordneten Reiterbändern aufgrund der relativ großen Schwankungen in den Ventilgrößen die Ventilsäcke vor dem Abziehen aus dem Bündel 12 exakt ausgerichtet werden. Dadurch ist gewährleistet, daß das Ventil in einer optimalen Lage dem Füllrohr zugeführt wird, so daß sichergestellt ist, daß es auch aufgesteckt werden kann. Dadurch wird die Leistung der Aufsteckvorrichtung optimiert.The invention is not limited to the illustrated embodiment. It is essential that preferably sewn valve bags with arranged in the end regions rider bands due to the relatively large fluctuations in the valve sizes, the valve bags are aligned exactly before pulling off the bundle 12. This ensures that the valve is fed to the filling tube in an optimal position, so that it is ensured that it can also be plugged. This optimizes the performance of the slip-on device.

Die gleiche Funktion gilt bei benähten Ventilsäcken, bei denen zur Kostenreduzierung auf Reiterbänder verzichtet wurde und der Verschluß durch Umlegen und Vernähen des Ventilschlauches erfolgt.The same function applies to sutured valve bags, which have been omitted to reduce costs on rider straps and the closure is done by folding and sewing the valve tube.

Claims (7)

  1. Device (10) for fitting valve bags onto the filling spouts of a filling machine, in which the valve bags to be fitted rest in a pack (12) flat on a controllable lifting table (11) and can be moved by means of a lifting mechanism that can be swivelled about a horizontal axis positioned above the lifting table transversely to the longitudinal edges of the bags into a hanging transport position and transferred to a valve-opening and transporting device such that they can be transported with the valve open, characterised in that the device (10) is equipped with a positioning element (16) for the respective topmost valve bag in the pack, which engages with the valve bag by positive and/or frictional engagement and moves its transverse edge associated with the valve against a fixed abutment (15).
  2. Device according to Claim 1, characterised in that the positioning element (16) can be swivelled about an axis running parallel to and a distance away from the fixed abutment (15), such that the positioning element (16) can be placed on the area of the respective valve bag associated with the valve, and the positioning element (16) can be moved by a linear drive towards the fixed abutment and in the opposite direction.
  3. Device according to Claim 2, characterised in that the positioning element can be swivelled by means of a piston-cylinder unit (18) and moved in the said opposite directions by a piston-cylinder unit (17).
  4. Device according to one or more of the preceding Claims 1 to 3, designed for fitting stitched valve bags made of paper, in which the areas associated with the transverse edges are surrounded by sealing strips or the end areas are folded back upon themselves and in which closure is effected by stitching around the valve tubes, characterised in that the positioning element (16) is provided with an alignment strip (16a) which, after being placed on the respective topmost valve bag of the pack (12), engages behind the edge of the sealing strip or of the folded-back end area running parallel to the free transverse edge when it moves in the direction towards the swivel axis.
  5. Device according to one or more of the preceding Claims 1 to 3, in which the valve bags consist of plastic foils, characterised in that the positioning element (16) is provided with a flat anti-slip layer or a flat anti-slip coating, such that the topmost valve bag is moved by the effect of friction.
  6. Device according to one or more of the preceding Claims 1 to 5, characterised in that the abutment (15) is fixed on the machine frame (14) and extends as far as into the movement zone of the positioning element (16).
  7. Device according to one or more of the preceding Claims 1 to 6, characterised in that the lifting table (11) can be moved vertically by at least one linear drive, preferably a piston-cylinder unit (13), and is guided in vertical guides in such manner that the respective topmost valve bag in the pack is always at the same or approximately the same height.
EP20040027966 2003-12-06 2004-11-25 Apparatus for mounting valve bags on filling spouts of a filling machine. Active EP1555207B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20318956U DE20318956U1 (en) 2003-12-06 2003-12-06 Device for attaching valve bags to the filling tubes of a filling machine
DE20318956U 2003-12-06

Publications (2)

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EP1555207A1 EP1555207A1 (en) 2005-07-20
EP1555207B1 true EP1555207B1 (en) 2007-02-21

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DE (2) DE20318956U1 (en)
DK (1) DK1555207T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2246264B1 (en) 2009-04-29 2011-11-30 Claudius Peters Projects GmbH Apparatus and method for attaching valve bags
DE102010051693A1 (en) * 2010-11-20 2012-05-24 Haver & Boecker Ohg Device and method for the defined picking up of sacks
CN105292542A (en) * 2015-10-30 2016-02-03 佛山市九一自动化科技有限公司 Packing machine for single pipe
DE102015222303A1 (en) * 2015-11-12 2017-05-18 Claudius Peters Projects Gmbh Sackaufsteckvorrichtung
CN105691735A (en) * 2016-03-10 2016-06-22 天津市新姿科技发展有限公司 Automatic through tube device for food bag
CN117302659B (en) * 2023-11-28 2024-04-02 河南佰嘉新型节能材料有限公司 Valve bag filling opening supporting device

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
DE2250678A1 (en) * 1972-10-16 1974-04-25 Borghart Maschinen Und Geraete PROCEDURE FOR THE MECHANICAL PLUGGING OF BAGS, IN PARTICULAR VALVE BOTTOM BAGS, ON THE NECK OF FILLING MACHINES AND MACHINE FOR PERFORMING THE PROCEDURE
DE2407124A1 (en) * 1974-02-15 1975-08-28 Borghart Kg Maschinen Metallun Sack bottom flap lifting mechanism - has lifting hooks engaging sack bottom flap before slide insertion
CA1072508A (en) * 1977-06-23 1980-02-26 Canadian Industries Limited Method and apparatus for placing a valve bag on a filling spout
DE2809525A1 (en) * 1978-03-06 1979-09-13 Greif Werk Ernst Mahlkuch Gmbh Valved sack filling mechanism with spout - has suction loading arm with clamping mechanism gripping sack and fitting it over spout
DE3140384A1 (en) * 1981-10-10 1983-04-28 Siku Fertigungstechnik und Anlagenbau GmbH + Co KG, 4714 Selm Push-on device for valve bags
DE3715926A1 (en) * 1987-05-13 1988-12-08 Haver & Boecker Apparatus for slipping valve bags onto the filling connection or filling connections of a packaging machine
WO1997022522A1 (en) * 1995-12-15 1997-06-26 Picsou S.A.H. An apparatus for transferring valved bags to a filling machine
IT1309470B1 (en) * 1999-01-29 2002-01-23 Ventomatic As IMPROVEMENTS FOR BAG-LEAF MACHINES.

Also Published As

Publication number Publication date
DK1555207T3 (en) 2007-07-23
DE502004002950D1 (en) 2007-04-05
DE20318956U1 (en) 2004-02-19
EP1555207A1 (en) 2005-07-20

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