EP2202158B1 - Strapping device and method for operation - Google Patents

Strapping device and method for operation Download PDF

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Publication number
EP2202158B1
EP2202158B1 EP20090405225 EP09405225A EP2202158B1 EP 2202158 B1 EP2202158 B1 EP 2202158B1 EP 20090405225 EP20090405225 EP 20090405225 EP 09405225 A EP09405225 A EP 09405225A EP 2202158 B1 EP2202158 B1 EP 2202158B1
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EP
European Patent Office
Prior art keywords
strapping
stack
unit
ejection direction
channel
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.)
Not-in-force
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EP20090405225
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German (de)
French (fr)
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EP2202158A1 (en
Inventor
Holger Müller
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Ferag AG
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Ferag AG
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Publication date
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Publication of EP2202158A1 publication Critical patent/EP2202158A1/en
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Publication of EP2202158B1 publication Critical patent/EP2202158B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
    • B65B13/06—Stationary ducts or channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/14—Bale and package ties, hose clamps

Definitions

  • the invention is in the field of further processing of printed products and relates to a device for strapping horizontal stacks of printed products with a strapping band and a corresponding operating method.
  • intermediate and sub-products such as individual sections of newspapers or magazines printed in front of other sections, must be signatures from which books are later produced, or single sheets, leaflets, smaller booklets, sub-sheets, etc.
  • the later newspapers or Magazines are added as supplements or collecting parts, intermediately stored between their production and their further processing and transported for this purpose within the company and possibly also from one company to another company.
  • intermediate storage and transport it has long been proven to arrange the intermediates in horizontal stacks, so-called rods and to store these stacked, for example, on pallets and transport.
  • these stacks have a length (perpendicular to the surface of the printed products) which is significantly larger than the edge lengths of the printed products. So these are stacks that are not stable without tools are not standing vertically.
  • the length of the stacks is matched, for example, to the dimensions of the pallets on which they are stacked and with which they are transported and stored, that is to say the stacks are usually 120 or 150 cm long and comprise, for example, 200 to 300 printed products.
  • the stacks are stacked on the pallets lying on top of each other and thus form easy-to-manipulate storage units that can be easily manipulated using common storage vehicles.
  • the ends of the stacks are usually stabilized with end plates, such as wooden boards, which are tailored to the format of the stacked products.
  • the stacks are held together by pressing with a strapping band, which consists for example of plastic, in a pressed state.
  • the strapping runs over the longer edges of rectangular printed products. Depending on the product format, it is strapped once or twice. In two strapping these divide the faces in three parts about the same size.
  • the lying stacks are usually made by stacking edge products, stabilizing the stacked products on both sides with end plates, and then pressing and strapping them.
  • the separated and end plates provided with stacks are held by a handling unit and conveyed in the stacking direction in a strapping, where they are optionally also moved transversely to the stacking direction.
  • a loop of strapping tape is presented by means of a band channel and tightened around the stack. After strapping, the stacks are transported away.
  • the strapping unit in particular the band channel, stationary, and the band channel has a movable channel portion which is lowered, for example, under the conveyor support or displaced laterally.
  • This design makes it possible to promote a stack in the open state in the strapping area enclosed by the band channel and then close the band channel for the actual strapping.
  • Such devices are basically suitable for strapping to a single strapping position (single strapping). If several strapping to be mounted, the handling unit must still be designed to be displaceable transversely to the conveying direction.
  • the strapping unit is moved relative to the stack or Umreifungs Scheme.
  • the band channel is always closed, so that the loop can already be presented while the strapped stack is conveyed away and a new stack is conveyed into the strapping area. Subsequently, the band channel is moved by moving transversely to the stack conveying direction in the strapping.
  • Advantages over the first concept are that the cycle time is reduced since the loop can already be formed in conveying the stack into the strapping area. There is also flexibility in the number and location of strapping.
  • Disadvantages are the relatively large masses which have to be moved in a short time over relatively large distances, because usually form the band channel together with a stack support and optionally other components for storage of a supply roll and for driving and tightening / welding the Umreifungsbands a jointly movable unit ,
  • the invention has for its object to further develop a known strapping device so that a greater flexibility in terms of the position of the strapping and the expiration of the strapping process can be achieved.
  • the strapping device comprises, in a manner known per se, a handling device with two pressing jaws for compressing and conveying the stack in a conveying direction extending in the stacking direction from a stack forming region into a strapping region, and a strapping unit with a stacking support and a band channel.
  • the strapping unit is movable in a direction of expulsion transverse to the conveying direction.
  • the band channel is arranged in a plane oriented perpendicular to the ejection direction. It can be placed by moving transversely to the conveying direction both around the strapping area, wherein the stack support is then located below the strapping area, as well as arranged laterally therefrom.
  • the term strapping is defined as the space in which the stack is located when the strapping takes place.
  • the strapping region is predetermined, for example, by a specific position of the pressing jaws and / or by a guide device for the pressing jaws.
  • the band channel has a movable channel section, so that the band channel can assume an open and a closed state. A stack is thus in the open state of the band channel in the conveying direction in the region enclosed by the band channel area inserted and can be brought into the Umreifungsposition. The strapping can then take place in the closed state.
  • the strapping device can advantageously take over part of the ejection movement of the stack and thereby at the same time release the strapping area for the purpose of feeding in a new stack.
  • the stack support itself independently of the movability of the strapping unit, is actively or passively designed to move the stack in the ejection direction, e.g. in that a conveyor unit for the stack is present (active) or in that the stack support has means which reduce the friction in the ejection direction (passive).
  • a conveyor unit for the stack is present (active) or in that the stack support has means which reduce the friction in the ejection direction (passive).
  • Particularly preferred is a roller carpet with arranged transversely to the ejection direction, if necessary. Driven rollers used.
  • the movable channel portion and the handling unit corresponding drives are present, which are preferably controlled by a common control unit.
  • the operating mode can be set so that it causes the corresponding movements of said units.
  • the control device preferably controls the drive for the strapping unit such that it is moved in the ejection direction by less than one stack width.
  • Fig. 1-5 show a strapping device 1 according to the invention when strapping a stack 2.
  • the strapping device 1 comprises a stationary support frame 3, on the following components are partly movably mounted: a strapping unit 10 with a stack support 20 and a band channel 30; a handling unit 40 for the stack 2; a clipboard 50.
  • the handling unit 40 comprises two pressing jaws 42 which are mounted on a carrier 41 and which can receive a stack in a clamping manner between them.
  • the carrier 41 is mounted linearly displaceable in a guide 44 attached to the support frame 3 in a conveying direction F which is perpendicular to the plane of the drawing.
  • the pressing jaws 42 can be moved by means of a corresponding guide 43 in a direction perpendicular to the conveying direction here horizontally extending direction A.
  • This direction is referred to herein as the ejection direction A, since it corresponds to the direction in which the stack 2 is moved after strapping.
  • the handling unit 40 is designed such that the stack 2 can be received in a stack formation area, not shown here, and can be moved into a strapping area U.
  • the strapping area U is that area in which the stack 2 is located during strapping.
  • the strapping unit 10 may assume various positions relative thereto, hereafter referred to as the strapping position (s).
  • the stack 2 itself can also occupy different positions relative to the strapping area U, in particular during supply and removal.
  • the strapping unit 10 comprises a stack support 20 and a band channel 30, which are mounted on a carriage 12 movable by means of rollers 13.
  • the carriage 12 is movable in the ejection direction A within the stationary parts of the support frame 3. It are appropriate, not shown here guides available.
  • a supply roll 15 is mounted for strapping by means of a bearing 14 and is moved with the strapping unit 10.
  • the stack support 20 is formed by a horizontal carpet of adjacent rollers 22 whose axes point in the conveying direction F.
  • the upper sides of the rollers 22 define a bearing surface 23 located in a support plane E, which is arranged directly below the strapping region U or adjoins the lower boundary surface or coincides with it.
  • the rollers 22 are driven by a drive 24, here in the form of a frictionally engaged with the rollers 22, guided over several deflections drive belt.
  • the band channel 30 is oriented vertically, wherein the plane defined by it runs parallel to the conveying direction F.
  • Fig. 6 +7 show a top view on this level.
  • the band channel 30 comprises an approximately U-shaped stationary channel portion 32 and an approximately straight movable channel portion 34, with which the channel 30 is closed ( Fig. 7 ) or opened ( Fig. 6 ) can be.
  • the band channel 30 and its stationary portion 32 relative to the stack support 20 is stationary.
  • the movable portion 34 can be lowered down below the stack support 20 with a suitable drive to open the channel 30.
  • a loop of a strapping band can be introduced into the channel 30 in the closed state and tightened around the stack 2 and connected.
  • the rollers 22 of the roller carpet are spaced from each other in the region of the band channel 30.
  • the stationary components of the strapping device 1 also include the clipboard 50, whose support surface 53 is likewise formed by a carpet of juxtaposed rollers 52 and lies in the same plane E as the support surface 23 of the stack support 20. Between the two bearing surfaces 23, 53 is a gap 4, the width b by moving the Umreifungsaku 10 changed or even can be completely closed.
  • a drive device 16 which here comprises a roller 22, 52 of the movable or stationary stack support 20, 50 and a further roller 17 guided belt 19.
  • the further roller 17 is movable in a vertical guide 18, including a drive not shown here is provided.
  • the strapping device 10 By moving the further roller 17 downwards, the strapping device 10 can be pulled towards the stationary clipboard 50, so that a continuous support surface 23, 53 is formed ( Fig. 5 ).
  • the strapping device 10 is preferably mounted, in particular biased, in such a way that it returns to its original position when the tension on the belt 19 of the drive device 16 decreases.
  • the band 19 is preferably designed so that it can receive the weight of a stack 2.
  • the bearing surfaces 23, 53 and the upper run of the band 19 form a continuous support surface of variable width.
  • Fig. 1 +2 show the strapping unit 10 at a first strapping position U1, in which the plane of the band channel 30, the strapping region U, which is in a defined position of the stationary guide 44 of the handling unit 40, approximately centrally intersects.
  • the band channel 30 is in Fig. 1 open, ie the movable channel portion 34 is lowered below the support surface 23.
  • the stack 2 is brought by the handling unit 40 through the opening of the band channel 30 in the strapping area U, but not yet released.
  • the bottom of the stack is located on or just above the support surface 23, wherein the weight is taken up to a greater extent by the handling unit 40.
  • the movable channel section 34 is then, as in Fig. 2 shown, moved up and the channel 30 is closed.
  • U1 can be strapping (Single strapping) take place.
  • the pressing jaws 42 are strapped with. Subsequent to the strapping, the pressing jaws 42 are withdrawn in the horizontal guide 43 and the strapped stack 2 is placed on the stack support 20. The corresponding position of the pressing jaws 42 is as in Fig. 4 in the case of multiple strapping.
  • the rollers 22 are driven and convey the stack 2 along the support surface 23 and via the belt 19 to the clipboard 50.
  • the entire strapping unit 10 is moved in the ejection direction A during the stack delivery until the support surface 23 of the stack support 20 merges into the support surface 53 of the clipboard 50.
  • the corresponding position of the strapping unit 10 is as in Fig. 5 in the case of multiple strapping.
  • the band channel 30 is here outside the strapping area U at a rest position R1, so that at the same time a new stack 2 can be brought into the strapping position without opening the band channel 30. In the band channel 30 can meanwhile be presented a loop.
  • the carriage 12 is then moved back again to move the band channel 30 back into the strapping position U1.
  • the ejection movement of the strapped stack 2 is advantageously combined here with a movement of the band channel 30 into a rest position R1.
  • Fig. 3 +4 show a variant of the described method for producing a multiple strapping on two strapping positions U2, U3 arranged essentially mirror-symmetrically with respect to the center plane of the stack 2.
  • the strapping unit 10 is moved with a small stroke only so that the band channel 30 is located at one of the strapping positions U2, U3.
  • the stack 2 was similar to in Fig. 2 brought in open band channel 30 in the strapping U and the band channel 30 then closed.
  • the Straping unit 10 is opposite to the Exaggerated direction A, so that the band channel 30 is positioned at the other Umreifungsposition U3 ( Fig. 4 ).
  • the double-strapped stack 2 is conveyed by the handling unit 40 by releasing the rollers 22 from the stack support 20 to the clipboard 50 after release.
  • the channel 30 is opened and a new stack 2 fed and strapped in the reverse order U3-U2.
  • the stroke of the strapping unit 10 (change of the distance b) here is always smaller than a stack width. This is advantageous thereby reduced energy consumption.
  • Fig. 5 shows a modification of the method according to Fig. 3 +4, in which the strapping unit 10 is displaced after a double strapping so far that the width b of the gap 4 is reduced to zero and the band channel 30 is located at a rest position R1 outside the strapping area U.
  • This operating mode in turn has the advantage that the loop can be presented in the band channel 30 remaining closed.
  • the stationary clipboard 50 and the movable stacker pad 20 are interconnected by a variable width tail or tail at any time and in any position of the carriage 12.
  • the roll carpet could be formed continuously, wherein the front end in the ejection direction is deflected downwards, so that the support surface 23, 53 always ends at the same point in space.
  • the stack is ejected to further sides or in further directions, e.g. to the side where the handling unit is located.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung liegt auf dem Gebiet der Weiterverarbeitung von Druckereiprodukten und betrifft eine Vorrichtung zur Umreifung von liegenden Stapeln von Druckereiprodukten mit einem Umreifungsband sowie ein entsprechendes Betriebsverfahren.The invention is in the field of further processing of printed products and relates to a device for strapping horizontal stacks of printed products with a strapping band and a corresponding operating method.

In der Druckereiindustrie müssen Zwischen- und Teilprodukte, wie beispielsweise einzelne Sektionen von Zeitungen oder Zeitschriften, die vor anderen Sektionen gedruckt werden, Signaturen, aus denen später Bücher hergestellt werden, oder Einzelblätter, Prospekte, kleinere Broschüren, Teilbögen etc., die später Zeitungen oder Zeitschriften als Beilagen oder Sammelteile beigegeben werden, zwischen ihrer Herstellung und ihrer weiteren Verarbeitung zwischengelagert und dafür innerhalb des Betriebs und gegebenenfalls auch von einem Betrieb zu einem anderen Betrieb transportiert werden. Für solche Zwischenlagerungen und Transporte bewährt es sich seit langem, die Zwischenprodukte in liegenden Stapeln, sogenannten Stangen, anzuordnen und diese beispielsweise auf Paletten gestapelt zu lagern und zu transportieren.In the printing industry, intermediate and sub-products, such as individual sections of newspapers or magazines printed in front of other sections, must be signatures from which books are later produced, or single sheets, leaflets, smaller booklets, sub-sheets, etc., the later newspapers or Magazines are added as supplements or collecting parts, intermediately stored between their production and their further processing and transported for this purpose within the company and possibly also from one company to another company. For such intermediate storage and transport, it has long been proven to arrange the intermediates in horizontal stacks, so-called rods and to store these stacked, for example, on pallets and transport.

Üblicherweise haben diese Stapel eine Länge (senkrecht zur Fläche der Druckereiprodukte), die bedeutend grösser ist als die Kantenlängen der Druckereiprodukte. Es handelt sich also um Stapel, die ohne Hilfsmittel nicht stabil sind, auch nicht senkrecht stehend. Die Länge der Stapel ist beispielsweise auf die Abmessungen der Paletten, auf denen sie gestapelt und mit denen sie transportiert und gelagert werden, abgestimmt, das heisst, die Stapel sind üblicherweise 120 oder 150 cm lang und umfassen beispielsweise 200 bis 300 Druckereiprodukte. Die Stapel werden auf den Paletten liegend aufeinander geschichtet und bilden so mit allgemein üblichen Lagerfahrzeugen einfach und platzsparend manipulierbare Lagereinheiten.Usually these stacks have a length (perpendicular to the surface of the printed products) which is significantly larger than the edge lengths of the printed products. So these are stacks that are not stable without tools are not standing vertically. The length of the stacks is matched, for example, to the dimensions of the pallets on which they are stacked and with which they are transported and stored, that is to say the stacks are usually 120 or 150 cm long and comprise, for example, 200 to 300 printed products. The stacks are stacked on the pallets lying on top of each other and thus form easy-to-manipulate storage units that can be easily manipulated using common storage vehicles.

Die Stirnseiten der Stapel sind üblicherweise mit Endplatten stabilisiert, beispielsweise Holzbrettchen, die auf das Format der gestapelten Produkte abgestimmt sind. Die Stapel werden durch eine Umreifung mit einem Umreifungsband, das beispielsweise aus Kunststoff besteht, in gepresstem Zustand zusammengehalten. Die Umreifung verläuft über die längeren Kanten von rechteckigen Druckproduken. Je nach Produkteformat wird einmal mittig oder zweimal umreift. Bei zwei Umreifungen teilen diese die Stirnflächen in drei etwa gleich grosse Teile teilen.The ends of the stacks are usually stabilized with end plates, such as wooden boards, which are tailored to the format of the stacked products. The stacks are held together by pressing with a strapping band, which consists for example of plastic, in a pressed state. The strapping runs over the longer edges of rectangular printed products. Depending on the product format, it is strapped once or twice. In two strapping these divide the faces in three parts about the same size.

Die liegenden Stapel werden üblicherweise durch Aneinanderreihen von auf einer Kante stehenden Produkten, durch beidseitige Stabilisierung der aneinandergereihten Produkte mittels Endplatten und durch darauffolgendes Pressen und Umreifen hergestellt. Für die Umreifung werden die abgetrennten und mit Endplatten versehenen Stapel durch eine Handhabungseinheit gehalten und in Stapelrichtung in einen Umreifungsbereich gefördert, wo sie gegebenenfalls auch quer zur Stapelrichtung verschoben werden. Im Umreifungsbereich wird mittels eines Bandkanals eine Schlaufe aus Umreifungsband vorgelegt und um den Stapel festgezogen. Nach der Umreifung werden die Stapel weggefördert.The lying stacks are usually made by stacking edge products, stabilizing the stacked products on both sides with end plates, and then pressing and strapping them. For the strapping the separated and end plates provided with stacks are held by a handling unit and conveyed in the stacking direction in a strapping, where they are optionally also moved transversely to the stacking direction. In the strapping area, a loop of strapping tape is presented by means of a band channel and tightened around the stack. After strapping, the stacks are transported away.

Vorrichtungen zur Umreifung von liegenden Stapeln von Druckereiprodukten sind beispielsweise bekannt aus den Publikationen EP 0623542 , WO 2004/009448 ( EP 1523443 ), EP 1380506 und US 6782678 . Sie basieren grundsätzlich auf zwei verschiedenen alternativen Konzepten:Devices for strapping horizontal stacks of printed products are known, for example, from the publications EP 0623542 . WO 2004/009448 ( EP 1523443 ) EP 1380506 and US 6782678 , They are basically based on two different alternative concepts:

Entweder ist - wie bei der EP 0623542 oder der US 6782678 - die Umreifungseinheit, insbesondere der Bandkanal, stationär, und der Bandkanal weist einen beweglichen Kanalabschnitt auf, der beispielsweise unter die Förderauflage abgesenkt oder seitlich verschoben wird. Diese Konstruktion ermöglicht es, einen Stapel im geöffneten Zustand in den vom Bandkanal umschlossenen Umreifungsbereich zu fördern und den Bandkanal anschliessend für das eigentliche Umreifen zu schliessen. Derartige Vorrichtungen sind grundsätzlich für das Umreifen an einer einzigen Umreifungsposition (Einfach-Umreifen) geeignet. Sollen mehrere Umreifungen angebracht werden, muss die Handhabungseinheit noch quer zur Förderrichtung verschiebbar ausgebildet werden.Either is - as with the EP 0623542 or the US 6782678 - The strapping unit, in particular the band channel, stationary, and the band channel has a movable channel portion which is lowered, for example, under the conveyor support or displaced laterally. This design makes it possible to promote a stack in the open state in the strapping area enclosed by the band channel and then close the band channel for the actual strapping. Such devices are basically suitable for strapping to a single strapping position (single strapping). If several strapping to be mounted, the handling unit must still be designed to be displaceable transversely to the conveying direction.

Gemäss dem anderen Konzept, das in der WO 2004/009448 oder EP 1380506 beschrieben ist, wird die Umreifungseinheit relativ zum Stapel bzw. zum Umreifungsbereich verschoben. Der Bandkanal ist stets geschlossen, so dass die Schlaufe bereits vorgelegt werden kann, während der umreifte Stapel weggefördert und ein neuer Stapel in den Umreifungsbereich gefördert wird. Anschliessend wird der Bandkanal durch Verschieben quer zur Stapel-Förderrichtung in den Umreifungsbereich bewegt. Vorteile gegenüber dem ersten Konzept bestehen darin, dass die Zyklusdauer verringert wird, da die Schlaufe bereits beim Fördern des Stapels in den Umreifungsbereich gebildet werden kann. Ausserdem besteht Flexibilität hinsichtlich der Anzahl und der Lage der Umreifungen. Nachteilig sind die relativ grossen Massen, die in kurzer Zeit über relativ grosse Distanzen bewegt werden müssen, denn üblicherweise bilden der Bandkanal zusammen mit einer Stapelauflage und gegebenenfalls weiteren Komponenten zur Lagerung einer Bandvorratsrolle sowie zum Antrieb und zum Festziehen/Verschweissen des Umreifungsbands eine gemeinsam verfahrbare Einheit.According to the other concept, that in the WO 2004/009448 or EP 1380506 is described, the strapping unit is moved relative to the stack or Umreifungsbereich. The band channel is always closed, so that the loop can already be presented while the strapped stack is conveyed away and a new stack is conveyed into the strapping area. Subsequently, the band channel is moved by moving transversely to the stack conveying direction in the strapping. Advantages over the first concept are that the cycle time is reduced since the loop can already be formed in conveying the stack into the strapping area. There is also flexibility in the number and location of strapping. Disadvantages are the relatively large masses which have to be moved in a short time over relatively large distances, because usually form the band channel together with a stack support and optionally other components for storage of a supply roll and for driving and tightening / welding the Umreifungsbands a jointly movable unit ,

Der Erfindung liegt die Aufgabe zugrunde, eine bekannte Umreifungsvorrichtung so weiterzuentwickeln, dass eine grössere Flexibilität hinsichtlich der Lage der Umreifungen und des Ablaufs des Umreifungsprozesses erreichbar ist.The invention has for its object to further develop a known strapping device so that a greater flexibility in terms of the position of the strapping and the expiration of the strapping process can be achieved.

Die Aufgabe wird gelöst durch eine Umreifungsvorrichtung mit den Merkmalen von Anspruch 1 sowie durch ein Betriebsverfahren dafür mit den Merkmalen von Anspruch 10. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, der Beschreibung und den Zeichnungen.The object is achieved by a strapping device with the features of claim 1 and by an operating method therefor having the features of claim 10. Advantageous developments of the invention will become apparent from the dependent claims, the description and the drawings.

Die Umreifungsvorrichtung umfasst in an sich bekannter Weise eine Handhabungseinrichtung mit zwei Pressbacken zum Zusammenpressen und Fördern des Stapels in einer in Stapellängsrichtung verlaufenden Förderrichtung von einem Stapelbildungsbereich in einen Umreifungsbereich, sowie eine Umreifungseinheit mit einer Stapelauflage und einem Bandkanal. Die Umreifungseinheit ist in einer quer zur Förderrichtung verlaufenden Ausstossrichtung verfahrbar. Der Bandkanal ist dabei in einer senkrecht zur Ausstossrichtung orientierten Ebene angeordnet. Er kann durch das Bewegen quer zur Förderrichtung sowohl um den Umreifungsbereich herum gelegt werden, wobei sich die Stapelauflage dann unterhalb des Umreifungsbereichs befindet, als auch seitlich davon angeordnet werden. Als Umreifungsbereich wird vorliegend derjenige Raumbereich bezeichnet, in dem sich der Stapel befindet, wenn die Umreifung stattfindet. Der Umreifungsbereich ist beispielsweise durch eine bestimmte Stellung der Pressbacken und/oder durch eine Führungseinrichtung für die Pressbacken vorgegeben. Erfindungsgemäss weist der Bandkanal einen beweglichen Kanalabschnitt auf, so dass der Bandkanal einen offenen und einen geschlossenen Zustand einnehmen kann. Ein Stapel ist somit im offenen Zustand des Bandkanals in Förderrichtung in den vom Bandkanal umschlossenen Bereich einführbar und kann in die Umreifungsposition gebracht werden. Die Umreifung kann dann im geschlossenen Zustand stattfinden.The strapping device comprises, in a manner known per se, a handling device with two pressing jaws for compressing and conveying the stack in a conveying direction extending in the stacking direction from a stack forming region into a strapping region, and a strapping unit with a stacking support and a band channel. The strapping unit is movable in a direction of expulsion transverse to the conveying direction. The band channel is arranged in a plane oriented perpendicular to the ejection direction. It can be placed by moving transversely to the conveying direction both around the strapping area, wherein the stack support is then located below the strapping area, as well as arranged laterally therefrom. In the present case, the term strapping is defined as the space in which the stack is located when the strapping takes place. The strapping region is predetermined, for example, by a specific position of the pressing jaws and / or by a guide device for the pressing jaws. According to the invention, the band channel has a movable channel section, so that the band channel can assume an open and a closed state. A stack is thus in the open state of the band channel in the conveying direction in the region enclosed by the band channel area inserted and can be brought into the Umreifungsposition. The strapping can then take place in the closed state.

Obwohl es angesichts der Verschiebbarkeit der Umreifungseinheit nicht notwendig scheint, den Bandkanal steuerbar, d.h. mit einem beweglichen Kanalabschnitt, zu gestalten, hat dieses Merkmal in Kombination mit einer verschiebbaren Umreifungseinheit folgende überraschende Vorteile:

  • Es sind mehrere Betriebsarten möglich, die jeweils hinsichtlich bestimmter Parameter optimiert werden können, wie z.B. Energieverbrauch oder kurze Zyklusszeit: Soll nur eine Einfach-Umreifung angebracht werden, kann die Umreifungseinheit ortsfest um die Umreifungsposition herum bleiben. Der Bandkanal wird geschaltet, d.h. der bewegliche Kanalabschnitt wird zum Einführen des Stapels geöffnet und dann wieder geschlossen. Hierdurch wird der Energieverbrauch und der Verschleiss reduziert, denn die massive Umreifungseinheit wird nicht bewegt. Soll eine Mehrfach-Umreifung gemacht werden, wird der Bandkanal zuerst in eine erste und dann in eine zweite Umreifungsposition gebracht. Er bleibt dann vorzugsweise in der zweiten Umreifungsposition, und der nachfolgende Stapel wird zuerst an der zweiten und dann an der ersten Position umreift. Auf diese Weise wird der notwendige Hub (Fahrweg quer zur Förderrichtung) und damit ebenfalls Verschleiss und Energieverbrauch reduziert. Falls die Zyklusdauer reduziert werden soll, kann der Kanal in beiden Fällen auch geschlossen bleiben und die Umreifungseinheit mit entsprechend grösserem Hub quer zwischen einer Umreifungsposition und einer Ruheposition verfahren werden. In der Ruheposition kann der Stapel am geschlossene Bandkanal vorbei in den Umreifungsbereich gefördert werden.
  • Die Bewegung der Umreifungseinheit quer zur Förderrichtung kann genutzt werden, um gleichzeitig zwei Wirkungen zu erreichen: Zum einen wird der Bandkanal zwischen verschiedenen Positionen (verschiedene Umreifungspositionen oder Umreifungs-/Ruheposition) verfahren. Hierdurch ergibt sich grosse Flexibilität bezüglich Lage und Anzahl der Umreifungen. Da vorzugsweise auch die Stapelauflage mitbewegt wird, kann der umreifte Stapel bereits eine gewisse Strecke in Ausstossrichtung bewegt werden, sobald er von der Handhabungseinheit freigegeben wurde. Hierdurch wird ebenfalls die Zyklusdauer reduziert und die Bewegung der Umreifungseinheit doppelt genutzt.
Although in view of the displaceability of the strapping unit, it does not seem necessary to make the band channel controllable, ie with a movable channel section, this feature in combination with a displaceable strapping unit has the following surprising advantages:
  • There are several modes possible, each of which can be optimized with respect to certain parameters, such as energy consumption or short cycle time: If only a single strapping be attached, the strapping unit can remain stationary around the strapping position. The band channel is switched, ie the movable channel section is opened to insert the stack and then closed again. As a result, the energy consumption and the wear is reduced, because the massive strapping unit is not moved. If a multiple strapping be made, the band channel is first placed in a first and then in a second strapping position. It then preferably remains in the second strapping position, and the subsequent stack is strapped first at the second and then at the first position. In this way, the necessary stroke (path across the conveying direction) and thus also wear and energy consumption is reduced. If the cycle time is to be reduced, the channel can in both cases also remain closed and the strapping unit with a correspondingly larger stroke can be moved transversely between a strapping position and a rest position. In the rest position, the stack can be conveyed past the closed band channel into the strapping area.
  • The movement of the strapping unit transversely to the conveying direction can be used in order to achieve two effects at the same time: Firstly, the band channel is moved between different positions (different strapping positions or strapping / rest position). This results in great flexibility in terms of location and number of strapping. There Preferably, the stack support is moved, the strapped stack can already be moved a certain distance in the ejection direction, as soon as it was released by the handling unit. This also reduces the cycle time and makes double use of the movement of the strapping unit.

Das erfindungsgemässe Verfahren umfasst die folgenden Schritte, die nicht zwingend in der angegebenen Reihenfolge durchgeführt werden müssen:

  1. a) Zuführen des Stapels in einer in Stapellängsrichtung verlaufenden Förderrichtung vom Stapelbildungsbereich in den Umreifungsbereich;
    • b1) Verfahren der Umreifungseinheit in und/oder entgegen der Ausstossrichtung, um den Bandkanal an wenigstens eine Umreifungsposition zu bringen, in der er den Umreifungsbereich umschliesst;
      und/oder
    • b2) Öffnen des beweglichen Kanalabschnitts, falls sich der Bandkanal bei Schritt a) bereits in einer Umreifungsposition befindet, und Schliessen des beweglichen Kanalabschnitts nach Schritt a);
    • c) Umreifen des Stapels an wenigstens einer Umreifungsposition;
    • d) Verfahren der Umreifungseinheit und/oder des Stapels in Ausstossrichtung, um den umreiften Stapel in wenigstens eine Abgabeposition zu bringen, in der er sich in Ausstossrichtung seitlich vom Umreifungsbereich befindet.
The process according to the invention comprises the following steps which need not necessarily be carried out in the order indicated:
  1. a) feeding the stack in a conveying direction extending in the stacking direction from the stacking area into the strapping area;
    • b1) moving the strapping unit in and / or against the ejection direction, in order to bring the band channel to at least one strapping position, in which it encloses the strapping area;
      and or
    • b2) opening the movable channel section if the band channel is already in a strapping position in step a), and closing the movable channel section after step a);
    • c) strapping the stack at at least one strapping position;
    • d) moving the strapping unit and / or the stack in the ejection direction in order to bring the strapped stack into at least one dispensing position in which it is located in the ejection direction laterally from the strapping area.

Wie bereits erwähnt, kann die Umreifungsvorrichtung in vorteilhafter Weise einen Teil der Ausstossbewegung des Stapels übernehmen und dadurch gleichzeitig den Umreifungsbereich zwecks Zuführen eines neuen Stapels freigeben.As already mentioned, the strapping device can advantageously take over part of the ejection movement of the stack and thereby at the same time release the strapping area for the purpose of feeding in a new stack.

In einer vorteilhaften Weiterbildung der Erfindung ist die Stapelauflage selbst unabhängig von der Verfahrbarkeit der Umreifungseinheit aktiv oder passiv zum Bewegen des Stapels in Ausstossrichtung ausgebildet, z.B. indem eine Fördereinheit für den Stapel vorhanden ist (aktiv) oder indem die Stapelauflage Mittel aufweist, die die Reibung in Ausstossrichtung vermindern (passiv). Besonders bevorzugt kommt ein Rollenteppich mit quer zur Ausstossrichtung angeordneten, ggfs. angetriebenen Rollen zum Einsatz.In an advantageous development of the invention, the stack support itself, independently of the movability of the strapping unit, is actively or passively designed to move the stack in the ejection direction, e.g. in that a conveyor unit for the stack is present (active) or in that the stack support has means which reduce the friction in the ejection direction (passive). Particularly preferred is a roller carpet with arranged transversely to the ejection direction, if necessary. Driven rollers used.

Zum Bewegen des Bandkanals bzw. der Umreifungseinheit, des beweglichen Kanalabschnitts und der Handhabungseinheit sind entsprechende Antriebe vorhanden, die vorzugsweise durch eine gemeinsame Steuereinheit gesteuert werden. In der Steuereinheit kann der Betriebsmodus eingestellt werden, so dass diese die entsprechenden Bewegungen der genannten Einheiten veranlasst. Vorzugsweise steuert die Steuereinrichtung den Antrieb für die Umreifungseinheit derart, dass diese in Ausstossrichtung um weniger als eine Stapelbreite verfahren wird.For moving the band channel or the strapping unit, the movable channel portion and the handling unit corresponding drives are present, which are preferably controlled by a common control unit. In the control unit, the operating mode can be set so that it causes the corresponding movements of said units. The control device preferably controls the drive for the strapping unit such that it is moved in the ejection direction by less than one stack width.

Beispiele der Erfindung sind in den Zeichnungen dargestellt und nachfolgend beschrieben. Es zeigen rein schematisch:

  • Fig. 1-5 eine erfindungsgemässe Umreifungsvorrichtung beim Umreifen eines Stapels in mehreren Momentaufnahmen;
  • Fig. 6+7 einen Bandkanal mit beweglichem Kanalabschnitt im offenen bzw. geschlossenen Zustand.
Examples of the invention are illustrated in the drawings and described below. It shows purely schematically:
  • Fig. 1-5 an inventive strapping device when strapping a stack in several snapshots;
  • Fig. 6 +7 a band channel with movable channel section in the open or closed state.

Fig. 1-5 zeigen eine erfindungsgemässe Umreifungsvorrichtung 1 beim Umreifen eines Stapels 2. Die Umreifungsvorrichtung 1 umfasst ein ortsfestes Traggestell 3, an dem die folgenden Komponenten z.T. beweglich gelagert sind: Eine Umreifungseinheit 10 mit einer Stapelauflage 20 und einem Bandkanal 30; eine Handhabungseinheit 40 für den Stapel 2; eine Zwischenablage 50. Fig. 1-5 show a strapping device 1 according to the invention when strapping a stack 2. The strapping device 1 comprises a stationary support frame 3, on the following components are partly movably mounted: a strapping unit 10 with a stack support 20 and a band channel 30; a handling unit 40 for the stack 2; a clipboard 50.

Die Handhabungseinheit 40 umfasst zwei an einem Träger 41 gelagerte Pressbacken 42, die einen Stapel in klemmender Weise zwischen sich aufnehmen können. Der Träger 41 ist in einer am Traggestell 3 angebrachten Führung 44 in einer Förderrichtung F, die hier senkrecht zur Zeichnungsebene verläuft, linear verschiebbar gelagert. Relativ zum Träger 41 können die Pressbacken 42 mittels einer entsprechenden Führung 43 auch in einer senkrecht zur Förderrichtung hier horizontal verlaufenden Richtung A verschoben werden. Diese Richtung ist vorliegend als Ausstossrichtung A bezeichnet, da sie der Richtung entspricht, in der der Stapel 2 nach dem Umreifen bewegt wird. Die Handhabungseinheit 40 ist so ausgebildet, dass der Stapel 2 in einem hier nicht gezeigten Stapelbildungsbereich aufgenommen werden kann und in einen Umreifungsbereich U bewegt werden kann. Der Umreifungsbereich U ist derjenige Raumbereich, in dem sich der Stapel 2 beim Umreifen befindet. Die Umreifungseinheit 10 kann verschiedene Stellungen relativ dazu einnehmen, die nachfolgend als Umreifungs- bzw. Ruheposition(en) bezeichnet werden. Der Stapel 2 selbst kann ebenfalls verschiedene Positionen relativ zum Umreifungsbereich U einnehmen, insbesondere beim Zu- und Wegfördern.The handling unit 40 comprises two pressing jaws 42 which are mounted on a carrier 41 and which can receive a stack in a clamping manner between them. The carrier 41 is mounted linearly displaceable in a guide 44 attached to the support frame 3 in a conveying direction F which is perpendicular to the plane of the drawing. Relative to the carrier 41, the pressing jaws 42 can be moved by means of a corresponding guide 43 in a direction perpendicular to the conveying direction here horizontally extending direction A. This direction is referred to herein as the ejection direction A, since it corresponds to the direction in which the stack 2 is moved after strapping. The handling unit 40 is designed such that the stack 2 can be received in a stack formation area, not shown here, and can be moved into a strapping area U. The strapping area U is that area in which the stack 2 is located during strapping. The strapping unit 10 may assume various positions relative thereto, hereafter referred to as the strapping position (s). The stack 2 itself can also occupy different positions relative to the strapping area U, in particular during supply and removal.

Details der Handhabungseinheit und der Stapelbildung, die hier ebenfalls verwirklicht sein können, ergeben sich beispielsweise aus der eingangs genannten WO 2004/009448 .Details of the handling unit and the stack formation, which can also be realized here, arise, for example, from the aforementioned WO 2004/009448 ,

Die Umreifungseinheit 10 umfasst eine Stapelauflage 20 und ein Bandkanal 30, die an einem mittels Rollen 13 verfahrbaren Wagen 12 gelagert sind. Der Wagen 12 ist in Ausstossrichtung A innerhalb der stationären Teile des Traggestells 3 verfahrbar. Es sind entsprechende, hier nicht gezeigte Führungen dafür vorhanden. Am Wagen 12 ist eine Vorratsrolle 15 für Umreifungsband mittels einer Lagerung 14 gelagert und wird mit der Umreifungseinheit 10 mitbewegt. Die Stapelauflage 20 ist durch einen horizontalen Teppich aus nebeneinander liegenden Rollen 22 gebildet, deren Achsen in Förderrichtung F weisen. Die Oberseiten der Rollen 22 definieren eine in einer Auflageebene E liegende Auflagefläche 23, die unmittelbar unterhalb des Umreifungsbereichs U angeordnet ist bzw. an dessen untere Begrenzungsfläche angrenzt oder mit dieser zusammenfällt. Die Rollen 22 sind durch einen Antrieb 24 angetrieben, hier in Form eines reibschlüssig mit den Rollen 22 zusammenwirkenden, über mehrere Umlenkungen geführten Antriebsbandes.The strapping unit 10 comprises a stack support 20 and a band channel 30, which are mounted on a carriage 12 movable by means of rollers 13. The carriage 12 is movable in the ejection direction A within the stationary parts of the support frame 3. It are appropriate, not shown here guides available. On the carriage 12, a supply roll 15 is mounted for strapping by means of a bearing 14 and is moved with the strapping unit 10. The stack support 20 is formed by a horizontal carpet of adjacent rollers 22 whose axes point in the conveying direction F. The upper sides of the rollers 22 define a bearing surface 23 located in a support plane E, which is arranged directly below the strapping region U or adjoins the lower boundary surface or coincides with it. The rollers 22 are driven by a drive 24, here in the form of a frictionally engaged with the rollers 22, guided over several deflections drive belt.

Der Bandkanal 30 ist vertikal orientiert, wobei die durch ihn definierte Ebene parallel zur Förderrichtung F verläuft. Fig. 6+7 zeigen eine Aufsicht auf diese Ebene. Der Bandkanal 30 umfasst einen etwa U-förmigen stationären Kanalabschnitt 32 sowie einen etwa geraden beweglichen Kanalabschnitt 34, mit dem der Kanal 30 geschlossen (Fig. 7) bzw. geöffnet (Fig. 6) werden kann. Wie Fig. 1-5 zeigen, ist der Bandkanal 30 bzw. sein stationärer Abschnitt 32 relativ zur Stapelauflage 20 ortsfest. Der bewegliche Abschnitt 34 kann mit einem geeigneten Antrieb nach unten unterhalb der Stapelauflage 20 abgesenkt werden, um den Kanal 30 zu öffnen. Durch hier nicht gezeigte Mittel kann im geschlossenen Zustand eine Schlaufe eines Umreifungsbands in den Kanal 30 eingeführt und um den Stapel 2 festgezogen und verbunden werden. Die Rollen 22 des Rollenteppichs sind dazu im Bereich des Bandkanals 30 voneinander beabstandet.The band channel 30 is oriented vertically, wherein the plane defined by it runs parallel to the conveying direction F. Fig. 6 +7 show a top view on this level. The band channel 30 comprises an approximately U-shaped stationary channel portion 32 and an approximately straight movable channel portion 34, with which the channel 30 is closed ( Fig. 7 ) or opened ( Fig. 6 ) can be. As Fig. 1-5 show, the band channel 30 and its stationary portion 32 relative to the stack support 20 is stationary. The movable portion 34 can be lowered down below the stack support 20 with a suitable drive to open the channel 30. By means not shown here, a loop of a strapping band can be introduced into the channel 30 in the closed state and tightened around the stack 2 and connected. The rollers 22 of the roller carpet are spaced from each other in the region of the band channel 30.

Zu den stationären Komponenten der Umreifungsvorrichtung 1 gehört auch die Zwischenablage 50, deren Auflagefläche 53 ebenfalls durch einen Teppich aus nebeneinander liegenden Rollen 52 gebildet ist und in derselben Ebene E wie die Auflagefläche 23 der Stapelauflage 20 liegt. Zwischen den beiden Auflageflächen 23, 53 befindet sich eine Lücke 4, deren Breite b durch Bewegen der Umreifungseinheit 10 verändert bzw. die sogar ganz geschlossen werden kann. Zum Bewegen der Umreifungseinheit 10 in Ausstossrichtung A dient eine Antriebsvorrichtung 16, die hier ein um Rollen 22, 52 der beweglichen bzw. stationären Stapelauflage 20, 50 sowie um eine weitere Rolle 17 geführtes Band 19 umfasst. Die weitere Rolle 17 ist in einer vertikalen Führung 18 beweglich, wozu ein hier nicht näher dargestellter Antrieb vorgesehen ist. Durch Bewegen der weiteren Rolle 17 nach unten kann die Umreifungsvorrichtung 10 zur stationären Zwischenablage 50 gezogen werden, so dass eine kontinuierliche Auflagefläche 23, 53 gebildet wird (Fig. 5). Die Umreifungsvorrichtung 10 ist vorzugsweise so gelagert, insbesondere vorgespannt, dass sie wieder in ihre Ausgangslage zurückkehrt, wenn die Zugspannung durch das Band 19 der Antriebsvorrichtung 16 nachlässt. Das Band 19 ist vorzugsweise so ausgebildet, dass es das Gewicht eines Stapels 2 aufnehmen kann. Somit bilden die Auflageflächen 23, 53 und das obere Trum des Bandes 19 eine kontinuierliche Auflagefläche variabler Breite.The stationary components of the strapping device 1 also include the clipboard 50, whose support surface 53 is likewise formed by a carpet of juxtaposed rollers 52 and lies in the same plane E as the support surface 23 of the stack support 20. Between the two bearing surfaces 23, 53 is a gap 4, the width b by moving the Umreifungseinheit 10 changed or even can be completely closed. To move the strapping unit 10 in the ejection direction A is a drive device 16, which here comprises a roller 22, 52 of the movable or stationary stack support 20, 50 and a further roller 17 guided belt 19. The further roller 17 is movable in a vertical guide 18, including a drive not shown here is provided. By moving the further roller 17 downwards, the strapping device 10 can be pulled towards the stationary clipboard 50, so that a continuous support surface 23, 53 is formed ( Fig. 5 ). The strapping device 10 is preferably mounted, in particular biased, in such a way that it returns to its original position when the tension on the belt 19 of the drive device 16 decreases. The band 19 is preferably designed so that it can receive the weight of a stack 2. Thus, the bearing surfaces 23, 53 and the upper run of the band 19 form a continuous support surface of variable width.

Im Folgenden wird die Funktion der Umreifungsvorrichtung 1 beschrieben. Dabei werden auch verschiedene Betriebsvarianten erläutert.The function of the strapping device 1 will be described below. Thereby also different operating variants are explained.

Fig. 1+2 zeigen die Umreifungseinheit 10 an einer ersten Umreifungsposition U1, bei der die Ebene des Bandkanals 30 den Umreifungsbereich U, der sich in definierter Lage von der stationären Führung 44 der Handhabungseinheit 40 befindet, etwa mittig schneidet. Der Bandkanal 30 ist in Fig. 1 offen, d.h. der bewegliche Kanalabschnitt 34 unter die Auflagefläche 23 abgesenkt. Der Stapel 2 wird durch die Handhabungseinheit 40 durch die Öffnung des Bandkanals 30 in den Umreifungsbereich U gebracht, jedoch noch nicht losgelassen. Die Stapelunterseite befindet sich auf oder kurz oberhalb der Auflagefläche 23, wobei das Gewicht zum grösseren Teil durch die Handhabungseinheit 40 aufgenommen wird. Der bewegliche Kanalabschnitt 34 wird anschliessend, wie in Fig. 2 gezeigt, nach oben verfahren und der Kanal 30 geschlossen. In dieser Position U1 kann die Umreifung (Einfachumreifung) stattfinden. Hierbei werden die Pressbacken 42 mit umreift. Anschliessend an die Umreifung werden die Pressbacken 42 in der horizontalen Führung 43 zurückgezogen und der umreifte Stapel 2 auf die Stapelauflage 20 aufgelegt. Die entsprechende Stellung der Pressbacken 42 ist so, wie in Fig. 4 für den Fall des Mehrfachumreifens dargestellt. Zum Abgeben des Stapels 2 werden die Rollen 22 angetrieben und fördern den Stapel 2 entlang der Auflagefläche 23 und über das Band 19 zur Zwischenablage 50. Fig. 1 +2 show the strapping unit 10 at a first strapping position U1, in which the plane of the band channel 30, the strapping region U, which is in a defined position of the stationary guide 44 of the handling unit 40, approximately centrally intersects. The band channel 30 is in Fig. 1 open, ie the movable channel portion 34 is lowered below the support surface 23. The stack 2 is brought by the handling unit 40 through the opening of the band channel 30 in the strapping area U, but not yet released. The bottom of the stack is located on or just above the support surface 23, wherein the weight is taken up to a greater extent by the handling unit 40. The movable channel section 34 is then, as in Fig. 2 shown, moved up and the channel 30 is closed. In this position U1 can be strapping (Single strapping) take place. Here, the pressing jaws 42 are strapped with. Subsequent to the strapping, the pressing jaws 42 are withdrawn in the horizontal guide 43 and the strapped stack 2 is placed on the stack support 20. The corresponding position of the pressing jaws 42 is as in Fig. 4 in the case of multiple strapping. To deliver the stack 2, the rollers 22 are driven and convey the stack 2 along the support surface 23 and via the belt 19 to the clipboard 50.

Falls die Zyklusdauer optimiert werden soll, wird bei der Stapelabgabe die gesamte Umreifungseinheit 10 in Ausstossrichtung A bewegt, bis die Auflagefläche 23 der Stapelauflage 20 in die Auflagefläche 53 der Zwischenablage 50 übergeht. Die entsprechende Position der Umreifungseinheit 10 ist so, wie in Fig. 5 für den Fall des Mehrfachumreifens dargestellt. Der Bandkanal 30 befindet sich hier ausserhalb des Umreifungsbereichs U an einer Ruheposition R1, so dass gleichzeitig ein neuer Stapel 2 ohne Öffnen des Bandkanals 30 in die Umreifungsposition gebracht werden kann. Im Bandkanal 30 kann währenddessen eine Schlaufe vorgelegt werden. Der Wagen 12 wird anschliessend wieder zurück gefahren, um den Bandkanal 30 wieder in die Umreifungsposition U1 zu bewegen. Die Ausstossbewegung des umreiften Stapels 2 wird hier in vorteilhafter Weise mit einer Bewegung des Bandkanals 30 in eine Ruheposition R1 kombiniert.If the cycle time is to be optimized, the entire strapping unit 10 is moved in the ejection direction A during the stack delivery until the support surface 23 of the stack support 20 merges into the support surface 53 of the clipboard 50. The corresponding position of the strapping unit 10 is as in Fig. 5 in the case of multiple strapping. The band channel 30 is here outside the strapping area U at a rest position R1, so that at the same time a new stack 2 can be brought into the strapping position without opening the band channel 30. In the band channel 30 can meanwhile be presented a loop. The carriage 12 is then moved back again to move the band channel 30 back into the strapping position U1. The ejection movement of the strapped stack 2 is advantageously combined here with a movement of the band channel 30 into a rest position R1.

Fig. 3+4 zeigen eine Variante des geschilderten Verfahrens zur Herstellung einer Mehrfachumreifung an zwei im Wesentlichen spiegelsymmetrisch zur Mittenebene des Stapels 2 angeordneten Umreifungspositionen U2, U3. Die Umreifungseinheit 10 wird mit kleinem Hub nur so verschoben, dass sich der Bandkanal 30 an einer der Umreifungspositionen U2, U3 befindet. In Fig. 3 wurde der Stapel 2 ähnlich wie in Fig. 2 bei offenem Bandkanal 30 in den Umreifungsbereich U gebracht und der Bandkanal 30 anschliessend geschlossen. In der Umreifungsposition U2 findet eine erste Umreifung statt. Anschliessend wird die Umreifungseinheit 10 entgegen der Ausstossrichtung A verschoben, so dass der Bandkanal 30 an der weiteren Umreifungsposition U3 positioniert wird (Fig. 4). Der zweifach umreifte Stapel 2 wird nach Freigabe durch die Handhabungseinheit 40 durch Betätigen der Rollen 22 von der Stapelauflage 20 zur Zwischenablage 50 befördert. Der Kanal 30 wird geöffnet und ein neuer Stapel 2 zugeführt und in der umgekehrten Reihenfolge U3-U2 umreift. Der Hub der Umreifungseinheit 10 (Änderung des Abstands b) ist hier stets kleiner als eine Stapelbreite. Vorteilhaft ist dabei dadurch reduzierte Energiebedarf. Fig. 3 +4 show a variant of the described method for producing a multiple strapping on two strapping positions U2, U3 arranged essentially mirror-symmetrically with respect to the center plane of the stack 2. The strapping unit 10 is moved with a small stroke only so that the band channel 30 is located at one of the strapping positions U2, U3. In Fig. 3 The stack 2 was similar to in Fig. 2 brought in open band channel 30 in the strapping U and the band channel 30 then closed. In the Umreifungsposition U2 a first strapping takes place. Subsequently, the strapping unit 10 is opposite to the Exaggerated direction A, so that the band channel 30 is positioned at the other Umreifungsposition U3 ( Fig. 4 ). The double-strapped stack 2 is conveyed by the handling unit 40 by releasing the rollers 22 from the stack support 20 to the clipboard 50 after release. The channel 30 is opened and a new stack 2 fed and strapped in the reverse order U3-U2. The stroke of the strapping unit 10 (change of the distance b) here is always smaller than a stack width. This is advantageous thereby reduced energy consumption.

Fig. 5 zeigt eine Abwandlung des Verfahrens gemäss Fig. 3+4, bei dem die Umreifungseinheit 10 nach einer Doppelumreifung so weit verschoben wird, dass die Breite b der Lücke 4 auf Null reduziert ist und sich der Bandkanal 30 an einer Ruheposition R1 ausserhalb des Umreifungsbereichs U befindet. Diese Betriebsart hat wiederum den Vorteil, dass die Schlaufe im geschlossen bleibenden Bandkanal 30 vorgelegt werden kann. Fig. 5 shows a modification of the method according to Fig. 3 +4, in which the strapping unit 10 is displaced after a double strapping so far that the width b of the gap 4 is reduced to zero and the band channel 30 is located at a rest position R1 outside the strapping area U. This operating mode in turn has the advantage that the loop can be presented in the band channel 30 remaining closed.

Es ist möglich, dass keine stationäre Zwischenablage 50 vorhanden ist oder dass die stationäre Zwischenablage 50 und die bewegliche Stapelauflage 20 durch ein Zwischen- oder Endstück variabler Breite zu jedem Zeitpunkt und in jeder Stellung des Wagens 12 miteinander verbunden sind. Beispielsweise könnte der Rollenteppich kontinuierlich ausgebildet sein, wobei das in Ausstossrichtung vordere Ende nach unten ablenkbar ist, so dass die Auflagefläche 23, 53 stets an derselben Stelle im Raum endet.It is possible that there is no stationary clipboard 50 or that the stationary clipboard 50 and the movable stacker pad 20 are interconnected by a variable width tail or tail at any time and in any position of the carriage 12. For example, the roll carpet could be formed continuously, wherein the front end in the ejection direction is deflected downwards, so that the support surface 23, 53 always ends at the same point in space.

Es ist auch möglich, die Vorrichtung so abzuwandeln, dass der Stapel zu weiteren Seiten bzw. in weitere Richtungen ausgestossen wird, z.B. zu der Seite, auf der sich die Handhabungseinheit befindet.It is also possible to modify the device so that the stack is ejected to further sides or in further directions, e.g. to the side where the handling unit is located.

Claims (13)

  1. A device for strapping lying stacks (2) of printed products with a strap, comprising a handling device (40) with two press jaws (42) for pressing together and conveying the stack (2) in a conveying direction (F) running in the stack longitudinal direction, from a stack formation region into a strapping region (U), as well as a strapping unit (10) with a stack rest (20) and with a strap channel (30), wherein the strapping unit (10) is traversable in an ejection direction (A) running transversely to the conveying direction (F), and wherein the strap channel (30) is arranged in a plane orientated perpendicularly to the ejection direction (A), characterised in that the strap channel (30) comprises a movable channel section (34), so that the strap channel (30) may assume an open and a closed condition, wherein a stack (2) in the open condition, may be brought in the conveying direction (F) into a strapping region (U) enclosed by the strap channel (3).
  2. A strapping device according to claim 1, characterised by a first drive for moving the handling device (40) in the conveying direction (F), a second drive (16) for moving the strapping unit (10) in the ejection direction (A), as well as a third drive for moving the movable channel section (34) for the purpose of opening and closing the strap channel (30).
  3. A strapping device according to claim 2, characterised by a control device for controlling the drives.
  4. A strapping device according to one of the preceding claims, characterised in that the strapping unit (10) is traversable in the ejection direction by less than a stack width.
  5. A strapping device according to one of the preceding claims, characterised in that the stack rest (20) is capable of moving the stack in the ejection direction (A) in an active or passive manner, in particular by way of it comprising a roller carpet of driven and/or freely rotatable rollers (2) which are arranged transversely to the ejection direction (A).
  6. A strapping device according to one of the preceding claims, characterised in that a stationary intermediate storage (50) for strapped stacks (2) is present, which in the ejection direction (A) is arranged laterally of the stack rest (20).
  7. A strapping device according to claim 6, characterised in that the strapping unit (10) may be displaced so far, that the rest surfaces (23, 53) of the stack rest (20) and of the intermediate storage (50) border one another and are aligned to one another in the ejection direction (A).
  8. A strapping device according to one of the preceding claims, characterised in that the handling unit (40) comprises a linear guide (44) arranged in the conveying direction, along which the press jaws (42) are traversable, wherein the press jaws (42) are displaceable transversely to the linear guide (44), for letting go of the stack (2).
  9. A method for strapping a stack (2), with a device according to one of the preceding claims, with the following steps:
    a) feeding the stack (2) in a conveying direction (F) running in the stack longitudinal
    direction, from the stack formation region into the strapping region (U);
    b1) traversing the strapping unit (10) in and/or opposite the ejection direction (A), in order to bring the strap channel (30) to at least one strapping position (U1, U2, U3), in which it encloses the strapping region (U);
    and/or
    b2) opening the movable channel section (234), should the strap channel (30) with step a) already be located in a strapping position (U1, U2, U3), and closing the movable channel section after step a);
    c) strapping the stack at at least one strapping position (U1, U2, U3);
    d) traversing the strapping unit (10) and/or the stack (2) in the ejection direction (A), in order to bring the strapped stack (2) into at least one release region, in which it is located laterally of the strapping region (U) in the ejection direction (A).
  10. A method according to claim 9, characterised in that the strapping unit (10) after strapping the stack (2) at a first strapping position (U2), is displaced relative to the stack (2), such that the strap channel is arranged at a second strapping position (U3), and that the stack (2) is strapped afresh at the second strapping position (U3).
  11. A method according to claim 10, characterised in that the strap channel (30) after step d) remains in the second strapping position (U3), that the movable channel section (34) is opened for feeding a further stack (2) and subsequently closed again, and that the further stack (2) is firstly strapped at the second strapping position (U3) and subsequently, by way of displacing the strapping unit, is strapped at the first strapping position (U2).
  12. A method according to one of the claims 9 to 11, characterised in that the strapping unit (10) in the ejection direction (A) is traversed maximally by less than a stack width.
  13. A method according to one of the claims 9 to 12, characterised in that the stack (2) after the strapping is released by the handling unit (40) and is supported from below by the stack rest.
EP20090405225 2008-12-24 2009-12-17 Strapping device and method for operation Not-in-force EP2202158B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02019/08A CH700153A1 (en) 2008-12-24 2008-12-24 A looping apparatus and methods of operation thereof.

Publications (2)

Publication Number Publication Date
EP2202158A1 EP2202158A1 (en) 2010-06-30
EP2202158B1 true EP2202158B1 (en) 2012-08-29

Family

ID=40453876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090405225 Not-in-force EP2202158B1 (en) 2008-12-24 2009-12-17 Strapping device and method for operation

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US (1) US20100162529A1 (en)
EP (1) EP2202158B1 (en)
AU (1) AU2009251034A1 (en)
CA (1) CA2688377A1 (en)
CH (1) CH700153A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5951366B2 (en) * 2012-06-18 2016-07-13 株式会社東芝 Paper sheet processing equipment
DE102015012484A1 (en) * 2015-09-24 2017-03-30 Giesecke & Devrient Gmbh Banding of banknotes
IT201800006626A1 (en) * 2018-06-25 2019-12-25 LOADING BAY PERFECTED IN A PACKAGING LINE AND RELATED TRANSPORT SYSTEM
CN112011682B (en) * 2020-09-28 2021-12-10 安庆海威尔机械有限公司 Auxiliary tool for reducing deformation rate of piston ring during quenching
CN112011681B (en) * 2020-09-28 2021-12-10 安庆海威尔机械有限公司 Method for reducing deformation rate of piston ring during quenching

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Publication number Priority date Publication date Assignee Title
FR2133078A5 (en) * 1971-04-07 1972-11-24 Brenneisen Package banding guiding device - includes flexible strips of rubber or plastics
US4292785A (en) * 1978-09-20 1981-10-06 Anchor Building Products Limited Tile packaging
FR2480255A1 (en) * 1980-04-10 1981-10-16 Dietrich De Feed for binding machine - has trolley carrying reel of binding material controlled by proximity switches
FR2481227B1 (en) * 1980-04-29 1985-06-21 Emballage Automatique Ste Fse MACHINE FOR STRAPPING OBJECTS, SUCH AS BAGS
DE4015643A1 (en) * 1990-05-15 1991-11-21 Autefa Maschinenfab METHOD AND DEVICE FOR PACKING PRESS BALES
JP4318322B2 (en) 1993-05-07 2009-08-19 グラプハ−ホルディング・アクチエンゲゼルシヤフト Apparatus for forming a stack oriented in a vertical direction with respect to papers standing in parallel
DE19615009B4 (en) * 1996-04-16 2005-09-29 Smb Schwede Maschinenbau Gmbh Stacker with strapping device
FR2777876B1 (en) * 1998-04-24 2000-06-30 Realisations Etudes Et Commerc DEVICE FOR STACKING AND TRANSFERRING PRINTED NOTEBOOKS IN THE FORM OF CARTRIDGES
IT1321314B1 (en) * 2000-07-06 2004-01-08 Gd Spa METHOD AND UNIT FOR BANDING BANKNOTE GROUPS.
ATE345976T1 (en) 2002-07-13 2006-12-15 Helmut Schmetzer DEVICE AND METHOD FOR STRAPPING PACKAGED GOODS WITH A STRAPPING BAND
AU2003232565B2 (en) * 2002-07-19 2009-02-19 Ferag Ag Method and device for forming horizontal stacks of printed products and securing said stacks with straps
DE102004058830A1 (en) * 2004-12-06 2006-06-08 Smb Schwede Maschinenbau Gmbh Packaged goods e.g. magazine stack, strapping machine, has conveyance belt and two sliders to horizontally feed goods through machine, in which goods discharge direction is orthogonal to goods feed-in direction
US8020488B1 (en) * 2010-03-08 2011-09-20 Tekpak Corporation Strapping machine

Also Published As

Publication number Publication date
CH700153A1 (en) 2010-06-30
CA2688377A1 (en) 2010-06-24
AU2009251034A1 (en) 2010-07-08
EP2202158A1 (en) 2010-06-30
US20100162529A1 (en) 2010-07-01

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