EP1454862B1 - Device for stacking tube segments for the production of bags - Google Patents

Device for stacking tube segments for the production of bags Download PDF

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Publication number
EP1454862B1
EP1454862B1 EP03003023A EP03003023A EP1454862B1 EP 1454862 B1 EP1454862 B1 EP 1454862B1 EP 03003023 A EP03003023 A EP 03003023A EP 03003023 A EP03003023 A EP 03003023A EP 1454862 B1 EP1454862 B1 EP 1454862B1
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EP
European Patent Office
Prior art keywords
conveyer
tube
tube sections
stacking
transport
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03003023A
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German (de)
French (fr)
Other versions
EP1454862A1 (en
Inventor
Wilfried Dr. Kolbe
Reinhold Hindemith
Wolfgang Brusdeilins
Andreas Kückelmann
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.)
Newlong Industrial Co Ltd
Original Assignee
Newlong Industrial Co Ltd
Newlong Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Newlong Industrial Co Ltd, Newlong Ind Co Ltd filed Critical Newlong Industrial Co Ltd
Priority to ES03003023T priority Critical patent/ES2247437T3/en
Priority to DE50301354T priority patent/DE50301354D1/en
Priority to AT03003023T priority patent/ATE306453T1/en
Priority to EP03003023A priority patent/EP1454862B1/en
Priority to US10/774,986 priority patent/US20040256791A1/en
Publication of EP1454862A1 publication Critical patent/EP1454862A1/en
Application granted granted Critical
Publication of EP1454862B1 publication Critical patent/EP1454862B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/23—Belts with auxiliary handling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the invention relates to a device for stacking tube sections for the production of sacks, with a transport device containing the Hose sections to a stacking station supplies.
  • a transport device containing the Hose sections to a stacking station supplies.
  • Such a device has been disclosed, for example, in GB-A-1,075,637.
  • sacks are needed that have multi-layered walls, For example, a wall with a layer of paper and at least one air-impermeable film layer.
  • An application example of such bags are Inflatable sacks used as cargo cushions when carrying cargo become.
  • the object of the invention is to provide a device, in particular also with hose sections made of pliable or multilayer material a clean stacking allows.
  • the transport device has an upper transport and a lower transport and that the lower transport formed in the stacking station by two endless conveyor belts which is above the stacking station outside the lateral edges of the Rotate hose sections and through at least two at regular intervals arranged cross member are connected, whose distances are the distances the leading edges of the successively supplied tube sections correspond.
  • the tube sections above the supplied to forming stack In each case, the leading edge of a Hose section between the upper transport and one of the Cross member of the bottom transport kept.
  • the stacking position When the stacking position is reached, reaches the cross member of the lower transport the pulley on which the conveyor belts be deflected, and consequently the clamping of the leading Edge between top feed and bottom feed lifted, so that the Hose section is dropped onto the stack.
  • the next Hose section is supplied with the following cross member, the runs deflected cross member at the bottom Trumm the conveyor belts back. He moves doing so on a train, which also still above the to be formed Stack is lying.
  • the invention also provides a method for stacking tube sections, in particular of multilayer material, for the production of sacces, in which a hose section with its leading edge clamping between a cross member of a bottom transport and a top transport held and fed to a position above the stacking station, while another cross member of the bottom feed, above the stacking station runs back to the upstream end of the transport device, the Keep trailing rear part of the hose section from the stack, until the leading edge of the first cross member is released and the tube section falls onto the stack.
  • the bottom feed has exactly two cross members which are diametrically opposed to each other are arranged on the conveyor belts.
  • the bottom feed reaches the downstream end of the conveyor something beyond the top transport, so that the released Hose section can fall freely on the stack.
  • the released hose section can be replaced by one or more leaf springs, which are stationarily arranged in the upper transport, depressed in the direction of the stack so that the laying of the tube section on the stack is accelerated.
  • the flush tray of tube sections on the stack can be through at the stacking table arranged attacks are supported.
  • the stacking table formed by a conveyor, with which the stack are removed can as soon as the desired stack height is reached.
  • the transport device arranged above the stacking station is preferably downstream of a separator, in which the endless tube in individual hose sections is divided.
  • the transport speed of Transport device above the storage station is preferably larger than the Transport speed at which the hose is fed to the separator becomes.
  • the bottom feed must be synchronized with the supply of the tube sections be that each cross member coincides with the leading edge of a supplied hose section at the upstream end of the transport device arrives. Because of the acceleration between the individual Hose sections resulting gaps from the difference in transport speed are dependent, can the distances between the leading Edges of successive tube sections to the solid Adjust the distance between the cross members of the bottom feed.
  • the separator preferably designed as a tear-off, with which the individual material layers of the Hose are demolished at pre-formed perforation.
  • the transport means of the stacking device at the upstream End of an inlet section, in which the vertical distance between narrowed the top transport and subtransport, until finally the leading edge of the hose section is clamped.
  • the nip is preferably defined by a pinch roller which is adjustable in the longitudinal direction is, so that an adaptation to different lengths of the tube sections is possible.
  • the stacking device shown in Figure 1 has a stacking station 10, above derer a transport device 12 with an upper transport 14 and a Underfeed 16 is arranged.
  • An endless, multi-layer hose 18 is from the right in Figure 1 with the aid of upper and lower conveyor belts 20, 22 supplied.
  • the walls of the hose 18 consist of several layers of material, the advance, preferably in the longitudinal direction slightly staggered positions have been perforated.
  • the hose 18 enters a tear-off 24, which is also formed by upper and lower conveyor belts 26, 28 becomes.
  • the transport speed of the tear-off head 24 is at least phased greater than the transport speed of the conveyor belts 20, 22, so that in the tube 18, a tensile stress is generated. If the mentioned Perforation point the space between the downstream end of the Conveyor belts 20, 22 and the upstream end of the Abr adoptedkopfes 24th achieved, this tension causes a hose portion 30 of the endless hose 18 is demolished.
  • the leading edge of the hose section 30 is at this moment already entered an inlet section 32 of the transport device 12.
  • the inlet section is formed by several parallel upper and lower conveyor belts 34. 36 formed whose transport speed with the Abr contemplatkopfes 24 matches.
  • the vertical distance between the upper conveyor belts 34 and the lower conveyor belts 36 takes in the transport direction gradually, so that a safe insertion of the leading edge of the Hose section 30 is made possible.
  • a pinch roller 38 directs the lower Trumm the upper conveyor belts 34 slightly downwards, so that the leading Edge of the tube portion 30 about the moment pinching is detected in the demolished the trailing edge of the endless hose becomes.
  • the pinch roller 38 is adapted to the length of the tube sections 30 length-adjustable.
  • the transport path formed by the inlet section 32 is slightly upwards inclined, so that the tube sections during further transport a certain amount reach 10 above the stacking station.
  • the top feed 14 In the area above the stacking station is the top feed 14 by several parallel, horizontally extending Conveyor belts 14 formed, with the conveyor belts 34 a guide roller 42 in common.
  • the bottom feed 16 is here by two conveyor belts 44 formed, which run over two guide rollers 46 and the, as clear can be seen in Figure 2, outside the lateral edges of the tube sections 30 lie.
  • the conveyor belts 44 are only in two places Cross members 48, 50 are connected and by positive drives (eg. Timing belt) synchronized.
  • the cross members 48, 50 are on the conveyor belts 44 arranged in diametrically opposite positions so that they on both Because along the conveyor belts 44 have equal distances from each other and thus simultaneously reach the guide rollers 46 at the same time.
  • the leading edge of a hose section 30th clamped by the conveyor belts 40 of the upper transport and by the Cross member 48 held.
  • the trailing back end of this Hose section 30 rests on the other cross member 50, the lower Trumm the conveyor belts 44 to the upstream guide roller 46 runs back.
  • the hose portion 30 is formed from an already formed Stack 52 kept away from hose sections in the stacking station 10 is on a trained as a conveyor stacking table 54.
  • the stacking device is shown in plan view. Because of Clarity on the supply side, only the upper conveyor belts 20, 36 and 34 shown with their respective guide rollers. In the downstream Area, however, the transport straps 44 of the lower transport are located. It can be seen that the distance between these conveyor belts 44th is greater than the width of the supplied tube section 30, so that the Hose section, when released, between these conveyor belts 44 fall through and can reach the stack 52.
  • the filing of the Hose section 30 on the stack 52 is supported by leaf springs 56, in the longitudinal direction between the conveyor belts 40 of the upper transport extend and are fixed to a stationary support 58, that with their free ends in the area of the leading edge on the Press hose section 30.
  • FIG. 3 shows the stacking device in a state which is somewhat later in time is the state shown in FIG.
  • the upper cross member 48 is straight here the downstream end of the top feed 14 passes so that the Hose section 30 is supported by the action of the leaf springs 56 on the Stack 52 drops.
  • the hose section still has a certain speed component in the direction of movement, but at the preferred transport speed the transport device 12 (preferably less than 60 m per Minute) is small, so that the hose section in register on the stack 52 comes to rest. If necessary, the alignment will be on the stack supported by a stopper 60 fixedly mounted on the stacking table 54 is.
  • FIG. 4 shows the state at an even later time.
  • the cross member 48 has just been deflected at the deflection roller 46 and now runs on the Bottom of bottom feed back.
  • the other cross member 50 reaches the appropriate position on top of the bottom feed, where he now together with the conveyor belts 40 of the top transport the detected leading edge of the next tube section 30, the timely is supplied from the inlet section 32.
  • This hose section will now moved on from. If its trailing edge is the rear guide roller 46 of the subtransport has passed and falls down, it gets through caught the returning cross member 48 so that they do not interfere with the stack 52 comes into contact. Finally, the state shown in FIG. 1 is restored achieved so that a new cycle can begin.
  • the length of the tube sections 30 vary within certain limits, as the distance between the cross members 48 and 50 not with the exact length of the hose sections but rather, with the distances between the leading edges of the successive ones Hose sections must match. Shorter lengths of the Hose sections can thus by correspondingly larger spaces be compensated.
  • the bottom feed 16 may also be more as two evenly distributed over the length of the conveyor belts 44 cross member exhibit.
  • the tube sections 30 become larger Length transported before they are stored on the stack.
  • the crossbeams 48, 50 may then be releasably secured to the transport straps 44, so that their number varies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

The stacking device stacks hose sectors (30). It includes a transporting device (12) to take them to a stacking point. The transporting device consists of an upper transporter (14) and a lower transporter (16). The lower one is formed from two endless transporting belts (44) in the region of the stacking point (10).

Description

Die Erfindung betrifft eine Vorrichtung zum Stapeln von Schlauchabschnitten für die Herstellung von Säcken, mit einer Transporteinrichtung, die die Schlauchabschnitte zu einer Stapelstation zuführt. Eine solche Vorrichtung ist zum Beispiel in der GB-A- 1,075,637 offenbart worden.The invention relates to a device for stacking tube sections for the production of sacks, with a transport device containing the Hose sections to a stacking station supplies. Such a device has been disclosed, for example, in GB-A-1,075,637.

Bei der Herstellung von Säcken aus Papier oder Folie wird häufig zunächst ein endloser Schlauch hergestellt, der dann in einzelne, jeweils einen Sack bildende Schlauchabschnitte aufgeteilt wird. Die einzelnen Schlauchabschnitte, die mit einer Transporteinrichtung kontinuierlich und aufeinanderfolgend transportiert werden, werden dann häufig zunächst in einem Stapel gesammelt, und erst in einem späteren Arbeitsgang werden dann die Enden der Schlauchabschnitte geschlossen und ggf. die Säcke mit Inhalt gefüllt.In the production of sacks of paper or foil is often first made endless tube, which then in single, each forming a bag Hose sections is divided. The individual tube sections that with a transport device continuously and successively transported are then often first collected in a stack, and then in a later operation then the ends of the tube sections are closed and possibly the bags filled with content.

Für bestimmte Anwendungen werden Säcke benötigt, die mehrlagige Wände haben, beispielsweise eine Wand mit einer Lage aus Papier und mindestens einer luftundurchlässigen Folienlage. Ein Anwendungsbeispiel für solche Säcke sind aufblasbare Säcke, die beim Transport von Frachtgütern als Stützkissen eingesetzt werden.For certain applications, sacks are needed that have multi-layered walls, For example, a wall with a layer of paper and at least one air-impermeable film layer. An application example of such bags are Inflatable sacks used as cargo cushions when carrying cargo become.

Insbesondere bei mehrlagigen Säcken mit relativ großer Länge erweist es sich oft als schwierig, die Schlauchabschnitte sauber übereinanderzustapeln. Wenn bei dem Stapelvorgang ein frisch zugeführter Schlauchabschnitt über den obersten bereits auf dem Stapel liegenden Schlauchabschnitt geschoben oder gezogen wird, können die einzelnen Materiallagen leicht gegeneinander verrutschen und/oder Falten bilden, so daß ein sauberes Stapeln und eine einwandfreie Weiterverarbeitung nicht möglich ist.Especially with multi-layered bags with a relatively large length, it often proves difficult to stack the tube sections cleanly. If at the stacking process, a freshly supplied tube section over the top pushed or pulled already lying on the stack hose section is, the individual material layers can easily slip against each other and / or Form wrinkles so that a clean stacking and a flawless further processing not possible.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die insbesondere auch bei Schlauchabschnitten aus biegeschlaffem oder mehrlagigem Material eine saubere Stapelung ermöglicht.The object of the invention is to provide a device, in particular also with hose sections made of pliable or multilayer material a clean stacking allows.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Transporteinrichtung einen Obertransport und einen Untertransport aufweist und daß der Untertransport im Bereich der Stapelstation durch zwei endlose Transportgurte gebildet wird, die oberhalb der Stapelstation außerhalb der seitlichen Ränder der Schlauchabschnitte umlaufen und durch mindestens zwei in gleichmäßigen Abständen angeordnete Querträger verbunden sind, deren Abstände den Abständen der vorauslaufenden Kanten der nacheinander zugeführten Schlauchabschnitte entsprechen.This object is achieved in that the transport device has an upper transport and a lower transport and that the lower transport formed in the stacking station by two endless conveyor belts which is above the stacking station outside the lateral edges of the Rotate hose sections and through at least two at regular intervals arranged cross member are connected, whose distances are the distances the leading edges of the successively supplied tube sections correspond.

Mit Hilfe der Transporteinrichtung werden die Schlauchabschnitte oberhalb des zu bildenden Stapels zugeführt. Dabei wird jeweils die vorauslaufende Kante eines Schlauchabschnitts klemmend zwischen dem Obertransport und einem der Querträger des Untertransports gehalten. Wenn die Stapelposition erreicht ist, erreicht der Querträger des Untertransports die Umlenkrolle, an der die Transportgurte umgelenkt werden, und folglich wird die Klemmung der vorauslaufenden Kante zwischen Obertransport und Untertransport aufgehoben, so daß der Schlauchabschnitt auf den Stapel fallengelassen wird. Während der nächste Schlauchabschnitt mit dem nachfolgenden Querträger zugeführt wird, läuft der umgelenkte Querträger am unteren Trumm der Transportgurte zurück. Er bewegt sich dabei auf einer Bahn, die ebenfalls noch oberhalb des zu bildenden Stapels liegt. Der nachschleppende hintere Teil des neu zugeführten Schlauchabschnittes, der nur an der vorderen Kante klemmend gehalten wird, wird daher durch den zurücklaufenden Querträger von der Oberseite des Stapels ferngehalten, so daß er nicht über den Stapel streicht und folglich die dort vorhandenen Schlauchabschnitte nicht verschieben kann. Erst wenn auch der neu zugeführte Schlauchabschnitt fallengelassen wird, hat sich der untere Querträger so weit zurückbewegt, daß er die nachlaufende Kante dieses Schlauchabschnitts freigibt.With the help of the transport device, the tube sections above the supplied to forming stack. In each case, the leading edge of a Hose section between the upper transport and one of the Cross member of the bottom transport kept. When the stacking position is reached, reaches the cross member of the lower transport the pulley on which the conveyor belts be deflected, and consequently the clamping of the leading Edge between top feed and bottom feed lifted, so that the Hose section is dropped onto the stack. While the next Hose section is supplied with the following cross member, the runs deflected cross member at the bottom Trumm the conveyor belts back. He moves doing so on a train, which also still above the to be formed Stack is lying. The trailing rear part of the newly fed Hose section, which is held clamped only at the front edge, is therefore due to the returning cross member from the top of the stack kept away so that he does not stroke the stack and consequently the there existing hose sections can not move. Only if the newly supplied hose section is dropped, the lower has Cross member moved back so far that he the trailing edge of this Hose section releases.

Gegenstand der Erfindung ist auch ein Verfahren zum Stapeln von Schlauchabschnitten, insbesondere aus mehrlagigem Material, für die Herstellung von Säkken, bei dem ein Schlauchabschnitt mit seiner vorauslaufenden Kante klemmend zwischen einem Querträger eines Untertransports und einem Obertransport gehalten und in eine Position oberhalb der Stapelstation zugeführt wird, während ein anderer Querträger des Untertransports, der oberhalb der Stapelstation zum stromaufwärtigen Ende der Transporteinrichtung zurückläuft, den nachschleppenden rückwärtigen Teil des Schlauchabschnittes vom Stapel fernhält, bis die vorauslaufende Kante von dem ersten Querträger freigegeben wird und der Schlauchabschnitt auf den Stapel fällt. The invention also provides a method for stacking tube sections, in particular of multilayer material, for the production of sacces, in which a hose section with its leading edge clamping between a cross member of a bottom transport and a top transport held and fed to a position above the stacking station, while another cross member of the bottom feed, above the stacking station runs back to the upstream end of the transport device, the Keep trailing rear part of the hose section from the stack, until the leading edge of the first cross member is released and the tube section falls onto the stack.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention will become apparent from the dependent claims.

Bevorzugt hat der Untertransport genau zwei Querträger, die diametral zueinander an den Transportgurten angeordnet sind.Preferably, the bottom feed has exactly two cross members which are diametrically opposed to each other are arranged on the conveyor belts.

Vorzugsweise reicht der Untertransport am stromabwärtigen Ende der Transporteinrichtung etwas über den Obertransport hinaus, so daß der freigegebene Schlauchabschnitt ungehindert auf den Stapel fallen kann.Preferably, the bottom feed reaches the downstream end of the conveyor something beyond the top transport, so that the released Hose section can fall freely on the stack.

Der freigegebene Schlauchabschnitt kann durch eine oder mehrere Blattfedern, die stationär im Obertransport angeordnet sind, in Richtung auf den Stapel niedergedrückt werden, so daß das Ablegen des Schlauchabschnitts auf dem Stapel beschleunigt wird.The released hose section can be replaced by one or more leaf springs, which are stationarily arranged in the upper transport, depressed in the direction of the stack so that the laying of the tube section on the stack is accelerated.

Die bündige Ablage der Schlauchabschnitte auf dem Stapel kann durch am Stapeltisch angeordnete Anschläge unterstützt werden. Vorzugsweise wird der Stapeltisch durch einen Förderer gebildet, mit dem der Stapel abtransportiert werden kann, sobald die gewünschte Stapelhöhe erreicht ist.The flush tray of tube sections on the stack can be through at the stacking table arranged attacks are supported. Preferably, the stacking table formed by a conveyor, with which the stack are removed can as soon as the desired stack height is reached.

Die oberhalb der Stapelstation angeordnete Transporteinrichtung ist vorzugsweise einer Trenneinrichtung nachgeschaltet, in der der endlose Schlauch in einzelne Schlauchabschnitte aufgeteilt wird. Die Transportgeschwindigkeit der Transporteinrichtung oberhalb der Ablagestation ist vorzugsweise größer als die Transportgeschwindigkeit, mit der der Schlauch der Trenneinrichtung zugeführt wird. Da somit die Schlauchabschnitte beim Eintritt in die Stapelvorrichtung beschleunigt werden, entstehen zwischen den aufeinanderfolgend zugeführten Schlauchabschnitten Zwischenräume, die genügend Zeit für die Ablage der Schlauchabschnitte auf dem Stapel schaffen.The transport device arranged above the stacking station is preferably downstream of a separator, in which the endless tube in individual hose sections is divided. The transport speed of Transport device above the storage station is preferably larger than the Transport speed at which the hose is fed to the separator becomes. Thus, since the tube sections accelerated upon entry into the stacking device be created between the successively supplied Tube sections spaces, which allow enough time for the filing of the Create hose sections on the stack.

Der Untertransport muß so mit der Zufuhr der Schlauchabschnitte synchronisiert sein, daß jeder Querträger zeitgleich mit der vorauslaufenden Kante eines zugeführten Schlauchabschnitts am stromaufwärtigen Ende der Transporteinrichtung eintrifft. Da die aufgrund der Beschleunigung zwischen den einzelnen Schlauchabschnitten entstehenden Zwischenräume von der Differenz der Transportgeschwindigkeit abhängig sind, lassen sich die Abstände zwischen den vorauslaufenden Kanten der aufeinanderfolgenden Schlauchabschnitte an den festen Abstand der Querträger des Untertransportes anpassen.The bottom feed must be synchronized with the supply of the tube sections be that each cross member coincides with the leading edge of a supplied hose section at the upstream end of the transport device arrives. Because of the acceleration between the individual Hose sections resulting gaps from the difference in transport speed are dependent, can the distances between the leading Edges of successive tube sections to the solid Adjust the distance between the cross members of the bottom feed.

Insbesondere bei mehrlagigen Schlauchabschnitten ist die Trenneinrichtung vorzugsweise als Abreißkopf ausgebildet, mit der die einzelnen Materiallagen des Schlauches an vorab gebildeten Perforationsstellen abgerissen werden. Durch die Beschleunigung der Schlauchabschnitte beim Eintritt in die Transporteinrichtung der Stapelvorrichtung kann dann zugleich die zum Abreißen der Schlauchabschnitte benötigte Zugspannung erzeugt werden.Especially in multi-layer hose sections is the separator preferably designed as a tear-off, with which the individual material layers of the Hose are demolished at pre-formed perforation. By the acceleration of the tube sections when entering the transport device the stacking device can then at the same time for tearing off the Hose sections required tensile stress generated.

Vorzugsweise hat die Transporteinrichtung der Stapelvorrichtung am stromaufwärtigen Ende einen Einlaufabschnitt, in dem sich der vertikale Abstand zwischen dem Obertransport und dem Untertransport verengt, bis schließlich die vorauslaufende Kante des Schlauchabschnittes geklemmt wird. Die Klemmstelle wird vorzugsweise durch eine Klemmwalze definiert, die in Längsrichtung verstellbar ist, so daß eine Anpassung an unterschiedliche Längen der Schlauchabschnitte ermöglicht wird.Preferably, the transport means of the stacking device at the upstream End of an inlet section, in which the vertical distance between narrowed the top transport and subtransport, until finally the leading edge of the hose section is clamped. The nip is preferably defined by a pinch roller which is adjustable in the longitudinal direction is, so that an adaptation to different lengths of the tube sections is possible.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.In the following an embodiment of the invention with reference to the drawing explained in more detail.

Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Stapelvorrichtung;
Fig. 2
die Vorrichtung nach Figur 1 in der Draufsicht; und
Fig, 3 und 4
Seitenansichten der Vorrichtung analog zu Figur 1, jedoch für unterschiedliche Phasen des Stapelvorgangs.
Show it:
Fig. 1
a schematic side view of a stacking device;
Fig. 2
the device of Figure 1 in plan view; and
FIGS. 3 and 4
Side views of the device analogous to Figure 1, but for different phases of the stacking process.

Die in Figur 1 gezeigte Stapelvorrichtung weist eine Stapelstation 10 auf, oberhalb derer eine Transporteinrichtung 12 mit einem Obertransport 14 und einem Untertransport 16 angeordnet ist.The stacking device shown in Figure 1 has a stacking station 10, above derer a transport device 12 with an upper transport 14 and a Underfeed 16 is arranged.

Ein endloser, mehrlagiger Schlauch 18 wird von rechts in Figur 1 mit Hilfe oberer und unterer Transportbänder 20, 22 zugeführt. Die Wände des Schlauches 18 bestehen aus mehreren Materiallagen, die vorab, vorzugsweise an in Längsrichtung etwas gegeneinander versetzten Positionen perforiert worden sind.An endless, multi-layer hose 18 is from the right in Figure 1 with the aid of upper and lower conveyor belts 20, 22 supplied. The walls of the hose 18 consist of several layers of material, the advance, preferably in the longitudinal direction slightly staggered positions have been perforated.

Hinter den Transportbändern 20, 22 tritt der Schlauch 18 in einen Abreißkopf 24 ein, der ebenfalls durch obere und untere Transportbänder 26, 28 gebildet wird. Die Transportgeschwindigkeit des Abreißkopfes 24 ist zumindest phasenweise größer als die Transportgeschwindigkeit der Transportbänder 20, 22, so daß in dem Schlauch 18 eine Zugspannung erzeugt wird. Wenn die erwähnte Perforationsstelle den Zwischenraum zwischen dem stromabwärtigen Ende der Transportbänder 20, 22 und dem stromaufwärtigen Ende des Abreißkopfes 24 erreicht, führt diese Zugspannung dazu, daß ein Schlauchabschnitt 30 von dem endlosen Schlauch 18 abgerissen wird.Behind the conveyor belts 20, 22, the hose 18 enters a tear-off 24, which is also formed by upper and lower conveyor belts 26, 28 becomes. The transport speed of the tear-off head 24 is at least phased greater than the transport speed of the conveyor belts 20, 22, so that in the tube 18, a tensile stress is generated. If the mentioned Perforation point the space between the downstream end of the Conveyor belts 20, 22 and the upstream end of the Abreißkopfes 24th achieved, this tension causes a hose portion 30 of the endless hose 18 is demolished.

Die vorauslaufende Kante des Schlauchabschnittes 30 ist in diesem Augenblick bereits in einen Einlaufabschnitt 32 der Transporteinrichtung 12 eingetreten. Der Einlaufabschnitt wird durch mehrere parallele obere und untere Transportbänder 34. 36 gebildet, deren Transportgeschwindigkeit mit der des Abreißkopfes 24 übereinstimmt. Der vertikale Abstand zwischen den oberen Transportbändern 34 und den unteren Transportbändern 36 nimmt in Transportrichtung allmählich ab, so daß ein sicheres Einführen der vorauslaufenden Kante des Schlauchabschnitts 30 ermöglicht wird. Eine Klemmwalze 38 lenkt den unteren Trumm der oberen Transportbänder 34 etwas nach unten ab, so daß die vorauslaufende Kante des Schlauchabschnitts 30 etwa in dem Augenblick klemmend erfaßt wird, in dem die nachlaufende Kante vom Endlosschlauch abgerissen wird. Die Klemmwalze 38 ist zur Anpassung an die Länge der Schlauchabschnitte 30 längenverstellbar.The leading edge of the hose section 30 is at this moment already entered an inlet section 32 of the transport device 12. The inlet section is formed by several parallel upper and lower conveyor belts 34. 36 formed whose transport speed with the Abreißkopfes 24 matches. The vertical distance between the upper conveyor belts 34 and the lower conveyor belts 36 takes in the transport direction gradually, so that a safe insertion of the leading edge of the Hose section 30 is made possible. A pinch roller 38 directs the lower Trumm the upper conveyor belts 34 slightly downwards, so that the leading Edge of the tube portion 30 about the moment pinching is detected in the demolished the trailing edge of the endless hose becomes. The pinch roller 38 is adapted to the length of the tube sections 30 length-adjustable.

Die durch den Einlaufabschnitt 32 gebildete Transportbahn ist leicht aufwärts geneigt, so daß die Schlauchabschnitte beim Weitertransport eine gewisse Höhe oberhalb der Stapelstation 10 erreichen. In dem Bereich oberhalb der Stapelstation wird der Obertransport 14 durch mehrere parallele, waagerecht verlaufende Transportbänder 14 gebildet, die mit den Transportbändern 34 eine Umlenkwalze 42 gemeinsam haben. Der Untertransport 16 wird hier durch zwei Transportgurte 44 gebildet, die über zwei Umlenkwalzen 46 laufen und die, wie deutlicher in Figur 2 zu erkennen ist, außerhalb der seitlichen Ränder der Schlauchabschnitte 30 liegen. Die Transportgurte 44 sind lediglich an zwei Stellen durch Querträger 48, 50 verbunden und sind durch formschlüssige Antriebe (z. B. Zahnriemen) synchronisiert. Die Querträger 48, 50 sind an den Transportgurten 44 in diametral gegenüberliegenden Positionen angeordnet, so daß sie auf beiden Wegen längs der Transportgurte 44 gleiche Abstände zueinander aufweisen und somit jeweils gleichzeitig die Umlenkwalzen 46 erreichen. In dem in Figur 1 gezeigten Zustand wird die vorauslaufende Kante eines Schlauchabschnittes 30 klemmend durch die Transportbänder 40 des Obertransportes und durch den Querträger 48 gehalten. Das nachschleppende rückwärtige Ende dieses Schlauchabschnittes 30 liegt auf dem anderen Querträger 50 auf, der am unteren Trumm der Transportgurte 44 zur stromaufwärtigen Umlenkwalze 46 zurückläuft. Auf diese Weise wird der Schlauchabschnitt 30 von einem bereits gebildeten Stapel 52 von Schlauchabschnitten ferngehalten, der in der Stapelstation 10 auf einem als Förderer ausgebildeten Stapeltisch 54 liegt.The transport path formed by the inlet section 32 is slightly upwards inclined, so that the tube sections during further transport a certain amount reach 10 above the stacking station. In the area above the stacking station is the top feed 14 by several parallel, horizontally extending Conveyor belts 14 formed, with the conveyor belts 34 a guide roller 42 in common. The bottom feed 16 is here by two conveyor belts 44 formed, which run over two guide rollers 46 and the, as clear can be seen in Figure 2, outside the lateral edges of the tube sections 30 lie. The conveyor belts 44 are only in two places Cross members 48, 50 are connected and by positive drives (eg. Timing belt) synchronized. The cross members 48, 50 are on the conveyor belts 44 arranged in diametrically opposite positions so that they on both Because along the conveyor belts 44 have equal distances from each other and thus simultaneously reach the guide rollers 46 at the same time. In that in Figure 1 shown state, the leading edge of a hose section 30th clamped by the conveyor belts 40 of the upper transport and by the Cross member 48 held. The trailing back end of this Hose section 30 rests on the other cross member 50, the lower Trumm the conveyor belts 44 to the upstream guide roller 46 runs back. In this way, the hose portion 30 is formed from an already formed Stack 52 kept away from hose sections in the stacking station 10 is on a trained as a conveyor stacking table 54.

In Figur 2 ist die Stapelvorrichtung in der Draufsicht gezeigt. Aus Gründen der Übersichtlichkeit sind auf der Zufuhrseite nur die oberen Transportbänder 20, 36 und 34 mit ihren jeweiligen Umlenkwalzen dargestellt. Im stromabwärtigen Bereich sind jedoch auch die Transportgurte 44 des Untertransportes eingezeichnet. Man erkennt, daß der Abstand zwischen diesen Transportgurten 44 größer ist als die Breite des zugeführten Schlauchabschnittes 30, so daß der Schlauchabschnitt, wenn er freigegeben wird, zwischen diesen Transportgurten 44 hindurchfallen und auf den Stapel 52 gelangen kann. Die Ablage des Schlauchabschnittes 30 auf dem Stapel 52 wird durch Blattfedern 56 unterstützt, die sich in Längsrichtung zwischen den Transportgurten 40 des Obertransportes erstrecken und so an einem stationären Träger 58 befestigt sind, daß sie mit ihren freien Enden im Bereich der vorauslaufenden Kante auf den Schlauchabschnitt 30 drücken.In Figure 2, the stacking device is shown in plan view. Because of Clarity on the supply side, only the upper conveyor belts 20, 36 and 34 shown with their respective guide rollers. In the downstream Area, however, the transport straps 44 of the lower transport are located. It can be seen that the distance between these conveyor belts 44th is greater than the width of the supplied tube section 30, so that the Hose section, when released, between these conveyor belts 44 fall through and can reach the stack 52. The filing of the Hose section 30 on the stack 52 is supported by leaf springs 56, in the longitudinal direction between the conveyor belts 40 of the upper transport extend and are fixed to a stationary support 58, that with their free ends in the area of the leading edge on the Press hose section 30.

Figur 3 zeigt die Stapelvorrichtung in einem Zustand, der zeitlich etwas später liegt als der in Figur 1 gezeigte Zustand. Der obere Querträger 48 hat hier gerade das stromabwärtige Ende des Obertransportes 14 passiert, so daß der Schlauchabschnitt 30 unterstützt durch die Wirkung der Blattfedern 56 auf den Stapel 52 fällt. Der Schlauchabschnitt hat noch eine gewisse Geschwindigkeitskomponente in Bewegungsrichtung, die jedoch bei der bevorzugten Transportgeschwindigkeit der Transporteinrichtung 12 (vorzugsweise kleiner als 60 m pro Minute) nur gering ist, so daß der Schlauchabschnitt paßgenau auf dem Stapel 52 zu liegen kommt. Erforderlichenfalls wird die Ausrichtung auf dem Stapel durch einen Anschlag 60 unterstützt, der fest auf dem Stapeltisch 54 angebracht ist.FIG. 3 shows the stacking device in a state which is somewhat later in time is the state shown in FIG. The upper cross member 48 is straight here the downstream end of the top feed 14 passes so that the Hose section 30 is supported by the action of the leaf springs 56 on the Stack 52 drops. The hose section still has a certain speed component in the direction of movement, but at the preferred transport speed the transport device 12 (preferably less than 60 m per Minute) is small, so that the hose section in register on the stack 52 comes to rest. If necessary, the alignment will be on the stack supported by a stopper 60 fixedly mounted on the stacking table 54 is.

Die rückwärtige Kante des Schlauchabschnittes 30 passiert in Figur 3 gerade den unteren Querträger 50 und wird somit ebenfalls auf den Stapel 52 fallengelassen.The rear edge of the tube section 30 passes straight in FIG the lower cross member 50 and is thus also dropped onto the stack 52.

Figur 4 zeigt den Zustand zu einem noch späteren Zeitpunkt. Der Querträger 48 ist hier gerade an der Umlenkwalze 46 umgelenkt worden und läuft nun auf der Unterseite des Untertransportes zurück. Gleichzeitig hat der andere Querträger 50 die entsprechende Position auf der Oberseite des Untertransportes erreicht, wo er nun zusammen mit den Transportbändern 40 des Obertransportes die vorauslaufende Kante des nächsten Schlauchabschnittes 30 erfaßt, der zeitgerecht vom Einlaufabschnitt 32 zugeführt wird. Dieser Schlauchabschnitt wird nun weiter nach vom gezogen. Wenn seine nachlaufende Kante die hintere Umlenkwalze 46 des Untertransportes passiert hat und herabfällt, wird sie durch den zurücklaufenden Querträger 48 aufgefangen, so daß sie nicht mit dem Stapel 52 in Berührung kommt. Schließlich wird wieder der in Figur 1 gezeigte Zustand erreicht, so daß ein neuer Zyklus beginnen kann.FIG. 4 shows the state at an even later time. The cross member 48 has just been deflected at the deflection roller 46 and now runs on the Bottom of bottom feed back. At the same time, the other cross member 50 reaches the appropriate position on top of the bottom feed, where he now together with the conveyor belts 40 of the top transport the detected leading edge of the next tube section 30, the timely is supplied from the inlet section 32. This hose section will now moved on from. If its trailing edge is the rear guide roller 46 of the subtransport has passed and falls down, it gets through caught the returning cross member 48 so that they do not interfere with the stack 52 comes into contact. Finally, the state shown in FIG. 1 is restored achieved so that a new cycle can begin.

Wenn der Stapel 52 die gewünschte Höhe erreicht hat, wird das den Stapeltisch 54 bildende Förderband angetrieben, so daß der Stapel abtransportiert wird und in der Stapelstation 10 ein neuer Stapel gebildet werden kann.When the stack 52 has reached the desired height, this becomes the stacking table 54 conveyor belt driven, so that the stack is removed and in the stacking station 10, a new stack can be formed.

Bei der beschriebenen Stapelvorrichtung kann die Länge der Schlauchabschnitte 30 innerhalb gewisser Grenzen variieren, da der Abstand zwischen den Querträgern 48 und 50 nicht mit der genauen Länge der Schlauchabschnitte sondern vielmehr mit den Abständen zwischen den vorauslaufenden Kanten der aufeinanderfolgenden Schlauchabschnitte übereinstimmen muß. Kürzere Längen der Schlauchabschnitte können somit durch entsprechend größere Zwischenräume ausgeglichen werden.In the described stacking device, the length of the tube sections 30 vary within certain limits, as the distance between the cross members 48 and 50 not with the exact length of the hose sections but rather, with the distances between the leading edges of the successive ones Hose sections must match. Shorter lengths of the Hose sections can thus by correspondingly larger spaces be compensated.

In einer modifizierten Ausführungsform kann der Untertransport 16 auch mehr als zwei gleichmäßig auf der Länge der Transportgurte 44 verteilte Querträger aufweisen. In diesem Fall werden die Schlauchabschnitte 30 über eine größere Länge transportiert, bevor sie auf dem Stapel abgelegt werden. Die Querträger 48, 50 können dann lösbar an den Transportgurten 44 befestigt sein, so daß sich ihre Anzahl variieren läßt.In a modified embodiment, the bottom feed 16 may also be more as two evenly distributed over the length of the conveyor belts 44 cross member exhibit. In this case, the tube sections 30 become larger Length transported before they are stored on the stack. The crossbeams 48, 50 may then be releasably secured to the transport straps 44, so that their number varies.

Da mit der beschriebenen Vorrichtung zumindest weitgehend vermieden wirdwird, daß ein neu auf den Stapel zugeführter Schlauchabschnitt über die Oberfläche des bereits gebildeten Stapels schleppt, wird insbesondere bei empfindlichen mehrlagigen Schlauchabschnttten ein sauberes Stapeln ermöglicht.Since with the described device is at least largely avoided, in that a tube section newly supplied to the stack passes over the surface the already formed pile drags, is particularly sensitive multi-layer Schlauchabschnttten allows a clean stacking.

Claims (9)

  1. Device for stacking tube sections (30) for the production of bags, having a conveyer device (12) which feeds the tube sections to a stacking station (10), characterized in that the conveyer device (12) comprises an upper conveyer (14) and a lower conveyer (16), and that the lower conveyer (16) is formed, in the area of the stacking station (10), by two endless conveyer belts (44) running above the stacking station outside of the lateral edges of the tube sections (30) and which are connected by at least two cross bars (48, 50) arranged in equal distances, the distances of which correspond to the distances of the upstream edges of the tube sections (30) supplied one after another.
  2. Device according to claim 1, characterized in that the downstream ends of the lower conveyer (16) and of the upper conveyer (14) are displaced with each other in longitudinal direction.
  3. Device according to claim 1 or 2, characterized in that at least a leaf spring (56) urging the supplied tube sections (30) downwards in direction of the stacking station, is arranged in the upper conveyer (14).
  4. Device according to any of the preceding claims, characterized in that the conveyer device (14) comprises an input section (32) within which the vertical distance between the upper and the lower conveyer belts (34, 36) in the transport device is gradually shortened.
  5. Device according to claim 4, characterized in that, in the input section, a longitudinally adjustable clamping roller (38) is arranged which deviates the upper conveyer belts (34) against the lower conveyer belts (36) in order to grip the upstream edge of the tube sections (30) supplied.
  6. Transport device according to any of the preceding claims, characterized in that, upstream of the transport device (12), a separating device (24) is arranged with which the endless tube (18) is divided up into the tube sections (30).
  7. Device according to claim 6, characterized in that the separating device (24) comprises a tear-off head which tears off the tube sections (30) at pre-perforated locations of the endless tube (18).
  8. Device according to claim 6 or 7, characterized in that, the transport speed of the transport device (12) is greater than the speed with which the tube (18) is supplied upstream of the separating device (24).
  9. Method for stacking tube sections (30), in particular out of multilayered material, for the production of bags, in which a tube section (30) is held in a transport device (12) with its upstream edge in a clamping fashion between a cross bar (48) of a lower conveyer (16) and an upper conveyer (14) and is fed into a position above a stacking station (10), whereas another cross bar (50) of the lower conveyer (16) which extends back to the upstream end of the transport device above the stacking station (10), keeps away the downstream, backside part of the tube section (30) from the stack (52) until the upstream edge is released from the first cross bar (48) and the tube section falls onto the stack.
EP03003023A 2003-02-12 2003-02-12 Device for stacking tube segments for the production of bags Expired - Lifetime EP1454862B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES03003023T ES2247437T3 (en) 2003-02-12 2003-02-12 DEVICE FOR STACKING PIPE SECTIONS FOR THE MANUFACTURE OF SACKS.
DE50301354T DE50301354D1 (en) 2003-02-12 2003-02-12 Device for stacking hose sections for the production of bags
AT03003023T ATE306453T1 (en) 2003-02-12 2003-02-12 DEVICE FOR STACKING TUBE SECTIONS FOR PRODUCING SACKS
EP03003023A EP1454862B1 (en) 2003-02-12 2003-02-12 Device for stacking tube segments for the production of bags
US10/774,986 US20040256791A1 (en) 2003-02-12 2004-02-09 Device for stacking tube sections for producing bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03003023A EP1454862B1 (en) 2003-02-12 2003-02-12 Device for stacking tube segments for the production of bags

Publications (2)

Publication Number Publication Date
EP1454862A1 EP1454862A1 (en) 2004-09-08
EP1454862B1 true EP1454862B1 (en) 2005-10-12

Family

ID=32798738

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Application Number Title Priority Date Filing Date
EP03003023A Expired - Lifetime EP1454862B1 (en) 2003-02-12 2003-02-12 Device for stacking tube segments for the production of bags

Country Status (5)

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US (1) US20040256791A1 (en)
EP (1) EP1454862B1 (en)
AT (1) ATE306453T1 (en)
DE (1) DE50301354D1 (en)
ES (1) ES2247437T3 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719404A (en) * 1925-12-09 1929-07-02 Harry E Townsend Sealing machine
US2065300A (en) * 1935-11-14 1936-12-22 Cottrell C B & Sons Co Delivery mechanism for printing presses
DE671345C (en) * 1937-06-18 1939-02-04 Holweg Const Mec Device for depositing the sheets of a continuously working cross cutter
US2323174A (en) * 1939-03-08 1943-06-29 Us Rubber Co Apparatus for stacking sheet material
GB1075637A (en) * 1963-09-04 1967-07-12 R W Barraclough Ltd Improvements in or relating to stacking apparatus
DE2138119C3 (en) * 1970-08-10 1981-01-29 Roeder & Spengler Ohg, 6000 Bergen- Enkheim Device for stacking blanks or the like. Stackable
IT1002144B (en) * 1973-11-30 1976-05-20 Moeert Di Trezzi E Monguzzi Sd GRIPPING AND TRANSFER DEVICE FOR MATERIAL IN SHEETS OR SIMILAR AND INCORPORATING GROUP THIS DEVICE IN PARTICULAR FOR THE APPLICATION WITH PRODUCTION LINES OF INDUSTRIAL SACKS OF LARGE SIZE
US4805891A (en) * 1988-01-04 1989-02-21 Pitney Bowes Inc. Standard and reverse collator
DE4218421A1 (en) * 1992-06-04 1993-12-09 Heidelberger Druckmasch Ag Sheet guide in the delivery of a printing press
GB9825510D0 (en) * 1998-11-20 1999-01-13 Ncr Int Inc Self-service terminal
US6341698B1 (en) * 1999-09-03 2002-01-29 Ga-Tek Inc. Sheet stacking device
US6691874B2 (en) * 2000-05-08 2004-02-17 Nikko Materials Usa, Inc. Sheet stacking device

Also Published As

Publication number Publication date
ATE306453T1 (en) 2005-10-15
EP1454862A1 (en) 2004-09-08
ES2247437T3 (en) 2006-03-01
US20040256791A1 (en) 2004-12-23
DE50301354D1 (en) 2005-11-17

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