EP1972560B1 - Method and device for packing a product in a sheet of a packaging material closed by gathering - Google Patents

Method and device for packing a product in a sheet of a packaging material closed by gathering Download PDF

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Publication number
EP1972560B1
EP1972560B1 EP07104615A EP07104615A EP1972560B1 EP 1972560 B1 EP1972560 B1 EP 1972560B1 EP 07104615 A EP07104615 A EP 07104615A EP 07104615 A EP07104615 A EP 07104615A EP 1972560 B1 EP1972560 B1 EP 1972560B1
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EP
European Patent Office
Prior art keywords
gathering
clip
packaging material
section
product
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
Application number
EP07104615A
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German (de)
French (fr)
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EP1972560A1 (en
Inventor
Thomas Fiedler
Volker Oehlert
Karl-Heinz Pfandke
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.)
Theegarten Pactec GmbH and Co KG
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Theegarten Pactec GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Theegarten Pactec GmbH and Co KG filed Critical Theegarten Pactec GmbH and Co KG
Priority to ES07104615T priority Critical patent/ES2347481T3/en
Priority to EP07104615A priority patent/EP1972560B1/en
Priority to AT07104615T priority patent/ATE471872T1/en
Priority to DE502007004182T priority patent/DE502007004182D1/en
Publication of EP1972560A1 publication Critical patent/EP1972560A1/en
Application granted granted Critical
Publication of EP1972560B1 publication Critical patent/EP1972560B1/en
Not-in-force legal-status Critical Current
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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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • B65B51/06—Applying adhesive tape
    • B65B51/065—Applying adhesive tape to the necks of bags

Definitions

  • the invention relates to a method and a device for packaging a product in a section of a packaging product with a shirring touch.
  • the packaging of products in a Raff-impact requires the attachment of a closure strip (hereinafter referred to as clip) in the area of sixteengafften packaging for a secure closure of the packaging.
  • clip a closure strip
  • the confectionery piece is supported by vacuum sucked and pulled down through a folding shaft (fitting) and thereby formed the packaging. Subsequently, the packaging, while the confectionery piece is located together with the packaging in another fitting, gathered and provided with a clip.
  • this principle is performance-limiting, since first all processing steps from the bringing together of the packaging material section with the product, the folding and shirring of the packaging material until the attachment of the clip have to be completely carried out until the next product can be packaged.
  • Another disadvantage is that for a practical opening of the package only a piece of paper can be used, which can be torn to open the package. On the other hand, plastic clip material can not be easily torn apart.
  • a bag closing apparatus in which an endlessly fed wire is first severed and then, after pre-bending, placed around a shirred bag neck around a corresponding mandrel and sealed.
  • the strips of a strip pair are connected to one another at their one end, placed around the combined end of a bag and assembled to form the closure in such a way that they enclose the combined bag end in the manner of a clip.
  • the assembled strip portions are separated from the remainder strips such that the remainder strips remain joined at the respective ends for re-performing the method.
  • the object of the present invention is to provide a quality-appropriate automatic production of a Raff-impact with clip closure in a high performance range, in addition, a consistently high quality of attachment of the clip is achieved. So the folded clip ends should lie as exactly as possible on each other (parallelism) and have the same lengths. Also, the clip should always be located at the same position of the package. Furthermore, a clip material made of plastic should also be used to seal the packaging.
  • the clip is fed continuously as an endless clip band.
  • endless clip band to be processed can be continuously unwound from a roll and fed to the device.
  • rollers with strip material for use which is coated with either a self-adhesive layer or is conceivable also the use of cold or heat seal layers or the coating of the strip material after it has been unwound from the roll and immediately before it is fed to the device.
  • strip material may be processed on the device which, after unwinding from the roll, is separated from a backing material similar to a label, the adhesive layer becoming accessible.
  • the package neck is preferably fixed when closing above and below the closure or clip location.
  • the packaging material section for shirring to form the narrowed neck of the packaging material is compressed by parts movable toward one another to form a neck. This is achieved by squeezing together by moving a shirring pusher and a shirring wheel.
  • the shirring device on a Raffschieber and a Raffrad which are designed in particular for relative movement to each other.
  • the shirring pans the packaging section by means of two-level spaced supporting elements and an intermediate gathering element and the Raffrad ruffles the packaging section by means of two levels forming spaced Raffimplantation and an intermediate support element, the Raffimplantation and support elements of the Raffrads and the Raffschiebers when moving together form the Packstoffhals ,
  • the shirring elements and support elements may each have an approximately semicircular recess in the bottom of the respective part-V (the rhombus), so that an approximately cylindrical packing material neck is formed.
  • the shirring elements of the Raffrads or the Raffschiebers thus form each about a V-shape, wherein the shirring element of the shirring when moving together moves between the shirring of the Raffrades.
  • the support elements of the shirring pusher and the shirring elements of the Raffrades form two levels above and below, between which an exact strip guidance is ensured when forming the strip around the Packstoffhals and the clip ends are folded exactly and parallel to each other.
  • the support elements of the shirring pusher are designed for independent movement of the shirring element.
  • the shirring can be withdrawn after shirring to make room for a clip closing "folding pliers", which follows the retracting shirring and from two sides by means of suitable jaws the clip around the packaging neck neck sets and then squeezes or closes.
  • the shirring pusher is usefully provided with a severing means (e.g., knife) for severing the clip so that the clip is severed from endless feeding as the parts of the shirring device move toward each other. It is also conceivable attachment of a knife at each station of the Raffrades to separate the clip when moving towards each other.
  • a severing means e.g., knife
  • the Raffrad for feeding the clip.
  • this may be done continuously, to which the clip is fed as an endless clip band around the shirring wheel, where it is then held by suitable means, e.g. by vacuum, mechanical gripping or fixing elements.
  • suitable means e.g. by vacuum, mechanical gripping or fixing elements.
  • the strip feeding is carried out continuously on the Raffrad.
  • the clip band can be pulled off and positioned at high speed. Fault-prone trigger pliers etc. are not necessary here.
  • clip plastic band material can also be used.
  • clip plastic band material can also be used.
  • the introduction of the tear notch by the knife which acts on the clip element on the support element before shirring the packaging material section.
  • the introduction of the tear notch for weakening the clip cross-section is usefully carried out by a knife, which preferably the clip on the outer edge cuts.
  • the local separation of functions, in which the individual packaging steps can be carried out at different positions, also enables overlapping serial packaging of the products, which already allows the packaging of the following products to be started while the previous products are still being completed.
  • Advantages of the invention described are, inter alia, the achievable higher performance than in the previously known devices and the usability of plastic strips as closure material.
  • a schematic plan view is shown on a horizontal section through a gathering device 1 of a packaging device.
  • the functional areas for combining the product and packaging material section, as well as the folding box (Bunchen) and the attachment of the clip are arranged in locally separate positions.
  • the packaging device also known per se and thus not shown folding device with a folding shaft to hammer the product one by one into a section of a package.
  • the upper and lower punches can be moved back to the starting position.
  • the subsequent product can already be taken up by the upper underplate transfer, while the gripper head transports the partially packaged product to a subsequent station for the gathering position.
  • the shirring device 1 essentially comprises two parts which are movable relative to one another, namely a shirring wheel 2 and a shirring slider 3 which, when moving towards each other, form or gather the packaging means section "above" the product P to the package neck H, which in turn is then subsequently clamped by means of the clip C is closed.
  • the Raffrad 2 is rotatable about an axis 4 and at the same time relative to the Raffschieber 3 movable.
  • the Raffrad 2 of the present embodiment comprises six Raffplatz 5, which are brought in succession with the shirring position by rotation about the axis 4 in accordance.
  • the individual Raffford 5 are formed by two levels forming shirring elements 6, 7 and an intermediate support member 8, wherein the shirring elements 6, 7 are formed as quasi disks around the central axis of rotation 4 of the shirring wheel 2.
  • the gathering elements 6, 7 each form a notch in the direction of the product P, for example in the form of a "V".
  • the approximately rectangular block-like support element 8 between the disc-shaped shirring elements 6, 7 is arranged.
  • the shirred pusher 3 has only one Raffplatz 9. This is formed by two spaced-forming spaced support members 10, 11 and an intermediate Raffelement 12.
  • the shirring element 12 forms an open notch in the direction of the product P in the form of a "V". In extension of the bottom of the "V" in each case the approximately triangular block-like support elements 10, 11 are arranged.
  • the shirring element 12 is designed to be displaceable relative to the support elements 10, 11.
  • the shirring pusher 3 comprises a knife 13, which serves for separating the respective clip C from the endlessly supplied clip band S (see below).
  • the knife 13 is also designed to be displaceable relative to the gathering element 12 and arranged parallel to the edges and laterally on the gathering element 12 or the support elements 10, 11.
  • the gathering elements 6, 7 and 12 as well as the support elements 8 and 10, 11 form the package neck H when moving toward one another, for which they form a decreasing diamond shape through the V-shaped indentations to be moved against one another, so that the protruding packaging material section is gathered (cf. Fig. 2 ).
  • the shirring elements 6, 7, 12 and the support elements 10, 11 each have an approximately semicircular recess 14 in the bottom of the respective "V", so that in this case an approximately cylindrical Packungshals H is formed because the Raffschieber 3 and the Raffrad 2 only so far be moved toward each other, that these recesses 14 form a continuous cylindrical space in the direction of the extension of the packaging material neck H to be formed.
  • the actual package neck H is thus formed by this cylindrical space itself.
  • the shirring element 12 engages between the shirring elements 6, 7 when they move toward each other and pushes the packaging against the support element 8, so that the packaging is gradually shirred by the decreasing diamond-shaped space until the packaging material is completely shirred to the package neck H and cylindrical Space is crowded.
  • the clip C is separated in exactly defined length from the endlessly supplied clip band S by the knife 13, to which this a small relative movement in the direction of the clip band between the two levels of shirring 6.7 executes and against another support element 18th is pressed (die cut) and then pulls back.
  • the further support elements 18 are each arranged analogously to the support elements 8 in the intermediate space between the gathering elements 6, 7 and in this case between the support elements 8.
  • the clip band S is called a strip e.g. withdrawn from a roll o. ⁇ . And the Raffrad 2 fed. It lies between the two levels of shirring elements 6, 7 on the support elements 8, where it is held by vacuum, pliers, etc. In the present case, vacuum is used, so that the clip band S is sucked onto the support elements 8 which are formed in a suitable manner.
  • the clip band S or the clip C lies in this position prior to the movement of the folding wheel 2 and the gathering slider 3 towards one another, so that it automatically rests against one side of the later-formed package neck H (cf. Fig. 1 and 2 ).
  • the gathering element 12 is now withdrawn and thereby clears the way for a folding pliers 15. This is the educated Packschhals H, however, held or fixed by the remaining support elements 10, 11 and shirring elements 6, 7 above and below, so that it retains its shape.
  • the folding pliers 15 comprise two jaw elements 16, 17, which are each arranged between the planes of the gathering elements 6, 7 and supporting elements 10, 11 in the folding wheel 2. They are displaceable about the axis 4 in the direction of the respective active Raffplatzes 5 and arranged to move towards and away from each other.
  • the folding pliers 15 closes the separated clip C behind the package neck H by pressing the jaw elements 16, 17 against each other.
  • the introduction of the tear notch for weakening of the strip cross-section is carried out by the knife 19, which cuts in the manner shown during the feeding break the clip band S at the outer edge by it performs a movement to the rear wheel 2 back and pressed against the corresponding support member 8 becomes. Subsequently, the knife 19 is withdrawn. During the actual feeding of the clip band S or rotation of the Raffrads the knife 19, however, is disengaged.
  • the tear notch is later centered with the closed clip C arranged on the packaging neck H and facilitates the opening of the clip C.
  • the shirring wheel 2 and the shirring pusher 3 return to their open starting positions, i. move away from each other.
  • the finished packaged product P is released with the clip C.
  • the finished packaged product P closed with the clip C is then removed from the shirring position by means of the gripping head holding it and a new product still to be gathered and closed is fed.
  • the Raffrad 2 rotates about its axis 4, so that the next Raffplatz 5 is again provided with a portion of the clip band S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Package Closures (AREA)
  • Making Paper Articles (AREA)
  • Basic Packing Technique (AREA)

Abstract

The method involves closing the packaging enclosing the gathered region of the packaging enclosing the product with a clip by folding or bunching the section of packaging material about the product so that it encloses the product with one side exposed, gathering the section of packaging material above the product on the exposed side to form a neck and closing the neck to apply a clip. The neck of the packaging material is fixed when closed and the clip is continuously fed as a continuous clip tape. An independent claim is also included for an arrangement for packaging a product in a section of packaging material.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Verpackung eines Produktes in einem Abschnitt eines Packmittels mit Raff-Einschlag.The invention relates to a method and a device for packaging a product in a section of a packaging product with a shirring touch.

Die Verpackung von Produkten in einen Raff-Einschlag erfordert für einen sicheren Verschluss der Verpackung die Anbringung eines Verschlussstreifens (im nachfolgenden auch Clip genannt) im Bereich des zusammengerafften Packmittels.The packaging of products in a Raff-impact requires the attachment of a closure strip (hereinafter referred to as clip) in the area of zusammengafften packaging for a secure closure of the packaging.

Vorrichtungen zum Verschluss von Beuteln mittels eines Clips, bei denen der geformte Beutelhals durch eine Apparatur gezogen und hierbei der Clip um das geraffte Packmittel gefaltet wird, sind bekannt. Derartige Apparate arbeiten zumeist passiv, indem der Bediener die zu verschließende Verpackung manuell durch die Apparatur hindurchzieht. Hierbei ist eine deutliche Leistungsgrenze vorhanden und auch die Qualität der Anbringung des Clips ist stark schwankend. Mögliche Schwankungen sind z. B. nicht exakt aufeinander gefaltete Clip-Enden (Parallelität) oder unterschiedliche Längen der Clip-Enden.Devices for closing bags by means of a clip, in which the shaped bag neck is pulled through an apparatus and in this case the clip is folded around the shirred packaging, are known. Such apparatuses are usually passive in that the operator manually pulls the package to be closed through the apparatus. Here is a clear performance limit exists and the quality of the attachment of the clip is highly variable. Possible fluctuations are z. B. not exactly folded clip ends (parallelism) or different lengths of the clip ends.

Andererseits sind auch Verfahren und Vorrichtungen bekannt, bei denen sowohl das Formen mittels Hindurchziehen durch einen Faltschacht (Bunchen) sowie die Anbringung des Clip an einer Position des gerafften Packmittelshalses automatisiert erfolgen.On the other hand, methods and devices are known in which both the forms by means of pulling through a folding shaft (Bunchen) and the attachment of the clip at a position of the shirred packaging neck are automated.

So ist aus der DE 199 55 667 B4 ein Verfahren zum Verpacken von einzelnen Konfektstücken bekannt, bei dem das Konfektstück auf eine auf einem ersten Formstück befindliche Folie gesetzt wird, das Konfektstück mit der Folie durch eine Öffnung in dem Formstück gedrückt wird und zusammen mit dem auf der Folie sitzenden Konfektstück die Folie auf der konfektstückabgewandten Seite nach unten durch die Öffnung angesaugt wird. Anschließend wird die Folie oberhalb des Konfektstücks zu einem Falttrichter zusammengedrückt und dieser mittels eines selbstklebenden Bandes, das insbesondere aus Papier besteht, fixiert. Sowohl das Zusammenführen von Konfektstück und Packmittelabschnitt, als auch das Formen durch einen Faltschacht sowie die Anbringung des Clips finden unmittelbar aufeinander folgend statt. Hierbei wird das Konfektstück unterstützt durch Vakuum angesaugt und nach unten durch einen Faltschacht (Formstück) gezogen und dabei das Packmittel geformt. Anschließend wird das Packmittel, während das Konfektstück sich zusammen mit dem Packmittel in einem weiteren Formstück befindet, gerafft und mit einem Clip versehen. Dieses Prinzip ist jedoch leistungsbegrenzend, da erst alle Verarbeitungsschritte vom Zusammenführen des Packmittelabschnittes mit dem Produkt, das Falten und Raffen des Packmittels bis zum Anbringen des Clip vollständig durchgeführt werden müssen, bis das nächste Produkt verpackt werden kann. Ein weiterer Nachteil besteht darin, dass für ein praktikables Öffnen der Verpackung nur ein Papierstreifen verwendet werden kann, der sich zum Öffnen der Verpackung zerreißen lässt. Clipmaterial aus Kunststoff lässt sich hingegen nicht ohne Weiteres zerreißen.So is out of the DE 199 55 667 B4 a method for packaging individual confectionery pieces is known, in which the confectionery piece is placed on a film located on a first molding, the confectionery piece is pressed with the film through an opening in the molding and, together with the sitting on the foil confectionery the film on the side facing away from the sweetener is sucked down through the opening. Subsequently, the film is compressed above the confectionery piece to a Falttrichter and this fixed by means of a self-adhesive tape, which consists in particular of paper. Both the merging of confectionery piece and packaging section, as well as the shaping by a folding shaft and the attachment of the clip take place immediately following one another. Here, the confectionery piece is supported by vacuum sucked and pulled down through a folding shaft (fitting) and thereby formed the packaging. Subsequently, the packaging, while the confectionery piece is located together with the packaging in another fitting, gathered and provided with a clip. However, this principle is performance-limiting, since first all processing steps from the bringing together of the packaging material section with the product, the folding and shirring of the packaging material until the attachment of the clip have to be completely carried out until the next product can be packaged. Another disadvantage is that for a practical opening of the package only a piece of paper can be used, which can be torn to open the package. On the other hand, plastic clip material can not be easily torn apart.

Aus der US-A-1,869,116 ist eine Vorrichtung zum Verschließen von Beuteln bekannt, in der ein endlos zugeführter Draht zunächst abgetrennt wird und anschließend nach einem Vorbiegen an einem entsprechenden Dorn um einen gerafften Beutelhals herum gelegt und verschlossen wird.From the US-A-1,869,116 For example, a bag closing apparatus is known in which an endlessly fed wire is first severed and then, after pre-bending, placed around a shirred bag neck around a corresponding mandrel and sealed.

Aus der DE 24 19 072 A1 ist ein Verfahren und eine entsprechende Vorrichtung zum Schließen von Beuteln oder dergleichen bekannt, bei dem Ende eines taschen- oder schlauchartigen Beutel zusammengefasst und mittels eines aus zumindest einem Streifen bestehenden Verschluss zusammengehalten wird.From the DE 24 19 072 A1 For example, a method and corresponding device for closing bags or the like is known in which the end of a bag-like or tubular bag is held together and held together by means of a closure consisting of at least one strip.

Dabei werden die Streifen eines Streifenpaares an ihrem einen Ende miteinander verbunden, um das zusammengefasste Ende eines Beutels gelegt und derart zum Verschluss zusammengefügt, dass sie das zusammengefasste Beutelende klammerartig umschließen . Zusätzlich werden die zusammengefügten Streifenteile von den Reststreifen derart abgetrennt, dass die Reststreifen an den entsprechenden Enden zur erneuten Durchführung des Verfahrens verbunden bleiben.In this case, the strips of a strip pair are connected to one another at their one end, placed around the combined end of a bag and assembled to form the closure in such a way that they enclose the combined bag end in the manner of a clip. In addition, the assembled strip portions are separated from the remainder strips such that the remainder strips remain joined at the respective ends for re-performing the method.

Aus der EP 0 231 939 A1 ist eine Vorrichtung zum automatischen Verschließen von Beuteln und dergleichen mittels Klebestreifen bekannt, wobei ein mit einer ortsfesten Führungsbahn in Wirkverbindung stehendes, Schlitze zur Aufnahme der im Bereich ihrer Öffnung zusammengerafften Beutelhälse aufweisendes, angetriebenes Transportrad mit einer Mulden am Umfang zur Einführung der strangartig zusammengenommenen Beutelhälse aufweisende, durch die Beutelhälse drehbar mitgenommene Klebebandzuführrolle sowie mit einem Klebebandschließer und einem Trennmesser in Verbindung steht.From the EP 0 231 939 A1 a device for automatically closing bags and the like by means of adhesive strips is known, wherein a standing with a stationary guideway, slots for receiving the zusammengafften in the region of its mouth neck necksendes, driven transport wheel having a trough on the periphery for the introduction of the string-like taken together bag necks , rotatable through the bag necks entrained adhesive tape feed roll and with a tape sealer and a cutting knife in connection.

Demgegenüber besteht die Aufgabe der vorliegenden Erfindung darin, eine qualitätsgerechte automatische Herstellung eines Raff-Einschlags mit Clipverschluss in einem hohen Leistungsbereich bereitzustellen, bei dem zusätzlich eine gleichbleibend hohe Qualität der Anbringung des Clips erreicht wird. So sollten die aufeinander gefalteten Clip-Enden möglichst exakt aufeinander aufliegen (Parallelität) und gleiche Längen aufweisen. Auch soll der Clip stets an der gleichen Position der Verpackung angeordnet sein. Ferner soll zum Verschluss der Verpackung zudem ein Clip-Material aus Kunststoff verwendbar sein.In contrast, the object of the present invention is to provide a quality-appropriate automatic production of a Raff-impact with clip closure in a high performance range, in addition, a consistently high quality of attachment of the clip is achieved. So the folded clip ends should lie as exactly as possible on each other (parallelism) and have the same lengths. Also, the clip should always be located at the same position of the package. Furthermore, a clip material made of plastic should also be used to seal the packaging.

Diese Aufgabe wird durch das in Anspruch 1 wiedergegebene Verfahren und der in Anspruch 16 angegebenen Vorrichtung gelöst.This object is achieved by the method set forth in claim 1 and the device specified in claim 16.

Dadurch, dass der Packmittelhals beim Verschließen fixiert wird, ist es möglich, zu einer kompakten Ausformung des Packmittelhalses zu kommen, welcher nachfolgend, z. B. durch die Stützelemente, weiterhin fixiert wird, während der Clip um den Packmittelhals geschlossen wird. Hierdurch wird ein straffer Verschluss erreicht. Zudem ist ein sehr exaktes Ausbilden des Clipverschlusses möglich.The fact that the package neck is fixed when closing, it is possible to come to a compact shape of the packaging material neck, which subsequently, z. B. by the support elements, continues to be fixed while the clip is closed around the Packmittelhals. As a result, a tight seal is achieved. In addition, a very accurate forming of the clip closure is possible.

Der Clip wird dabei als endloses Clip-Band fortlaufend zugeführt. Mit "endlos" ist im Sinne der Erfindung gemeint, dass nicht einzelne Clips, sondern Meter- oder Rollenware zugeführt wird. Das zu verarbeitende endlose Clip-Band kann dazu von einer Rolle fortlaufend abgespult und der Einrichtung zugeführt werden. Hierbei kommen z.B. Rollen mit Streifenmaterial zur Anwendung, welches entweder mit einer selbstklebenden Schicht beschichtet ist oder denkbar ist auch die Verwendung von Kalt- oder Heißsiegelschichten oder die Beschichtung des Streifenmaterials nachdem es von der Rolle abgespult worden ist und unmittelbar bevor es der Einrichtung zugeführt wird. Ebenfalls kann auf der Einrichtung auch Streifenmaterial verarbeitet werden, welches nach dem Abspulen von der Rolle von einem Trägermaterial ähnlich wie bei einem Etikett getrennt wird, wobei die Klebeschicht zugänglich wird.The clip is fed continuously as an endless clip band. By "endless" is meant in the sense of the invention that not individual clips, but meter or roll goods is supplied. For this purpose, the endless clip band to be processed can be continuously unwound from a roll and fed to the device. Here, e.g. Rollers with strip material for use, which is coated with either a self-adhesive layer or is conceivable also the use of cold or heat seal layers or the coating of the strip material after it has been unwound from the roll and immediately before it is fed to the device. Also, strip material may be processed on the device which, after unwinding from the roll, is separated from a backing material similar to a label, the adhesive layer becoming accessible.

Der Packmittelhals wird bevorzugt beim Verschließen oberhalb und unterhalb der Verschluss- bzw. Clipstelle fixiert.The package neck is preferably fixed when closing above and below the closure or clip location.

Erfingdungsgemäß wird der Packmittelabschnitt zum Raffen zur Ausbildung des verengten Packmittelhalses durch aufeinanderzubewegliche Teile zu einem Hals zusammenge-drückt. Dies wird über das Zusammendrücken durch Aufeinanderzubewegen eines Raffschiebers und eines Raffrades erreicht. Hierzu weist die Raffeinrichtung einen Raffschieber und ein Raffrad auf, die insbesondere zur relativ Bewegung zu einander ausgebildet sind.
Hierbei rafft der Raffschieber den Packmittelabschnitt mittels zwei Ebenen bildende beabstandete Stützelemente und einem dazwischen liegenden Raffelement und das Raffrad rafft den Packmittelabschnitt mittels zwei Ebenen bildende beabstandete Raffelemente und einem dazwischen liegenden Stützelement, wobei die Raffelemente und Stützelemente des Raffrads und des Raffschiebers beim Aufeinanderzubewegen den Packmittelhals bilden.According to the invention, the packaging material section for shirring to form the narrowed neck of the packaging material is compressed by parts movable toward one another to form a neck. This is achieved by squeezing together by moving a shirring pusher and a shirring wheel. For this purpose, the shirring device on a Raffschieber and a Raffrad, which are designed in particular for relative movement to each other.
Here, the shirring pans the packaging section by means of two-level spaced supporting elements and an intermediate gathering element and the Raffrad ruffles the packaging section by means of two levels forming spaced Raffelemente and an intermediate support element, the Raffelemente and support elements of the Raffrads and the Raffschiebers when moving together form the Packmittelhals ,

Hierzu hat es sich als günstig erwiesen, wenn die Raffelemente dazu beim Aufeinanderzubewegen etwa eine sich verkleinernde Rautenform ausbilden. Zusätzlich können die Raffelemente und Stützelemente je eine etwa halbkreisförmige Ausnehmung im Grund des jeweiligen Teil-V (der Raute) aufweisen, so dass ein etwa zylindrischer Packmittelhals ausgebildet wird.For this purpose, it has proven to be advantageous if the shirring to train when moving about form a decreasing diamond shape. In addition, the shirring elements and support elements may each have an approximately semicircular recess in the bottom of the respective part-V (the rhombus), so that an approximately cylindrical packing material neck is formed.

Die Raffelemente des Raffrads bzw. des Raffschiebers bilden also jeweils etwa eine V-Form aus, wobei das Raffelement des Raffschiebers beim Aufeinanderzubewegen zwischen die Raffelemente des Raffrades eingreift.The shirring elements of the Raffrads or the Raffschiebers thus form each about a V-shape, wherein the shirring element of the shirring when moving together moves between the shirring of the Raffrades.

Die Stützelemente des Raffschiebers und die Raffelemente des Raffrades bilden oben und unten zwei Ebenen, zwischen denen eine exakte Streifenführung beim Formen des Streifens um den Packmittelhals gewährleistet wird und die Clip-Enden exakt und parallel aufeinander gefaltet werden.The support elements of the shirring pusher and the shirring elements of the Raffrades form two levels above and below, between which an exact strip guidance is ensured when forming the strip around the Packmittelhals and the clip ends are folded exactly and parallel to each other.

Die Stützelemente des Raffschiebers sind dabei zur unabhängigen Bewegung von dem Raffelement ausgebildet. Somit kann das Raffelement nach dem Raffen zurückgezogen werden, um Platz zu machen für eine den Clip verschließende "Faltzange", die dem sich zurückziehenden Raffelement folgt und von zwei Seiten her mittels geeigneter Backen den Clip um den Packmittelhals legt und anschließend zusammendrückt bzw. verschließt.The support elements of the shirring pusher are designed for independent movement of the shirring element. Thus, the shirring can be withdrawn after shirring to make room for a clip closing "folding pliers", which follows the retracting shirring and from two sides by means of suitable jaws the clip around the packaging neck neck sets and then squeezes or closes.

Zusätzlich ist der Raffschieber sinnvollerweise mit einer Abtrenneinrichtung (z.B. Messer) zum Abtrennen des Clips versehen, so dass der Clip von einer endlos Zuführung beim Aufeinanderzubewegen der Teile der Raffeinrichtung abgetrennt wird. Denkbar ist aber auch die Befestigung von je einem Messer an jeder Station des Raffrades, um den Clip beim Aufeinanderzubewegen abzutrennen.In addition, the shirring pusher is usefully provided with a severing means (e.g., knife) for severing the clip so that the clip is severed from endless feeding as the parts of the shirring device move toward each other. It is also conceivable attachment of a knife at each station of the Raffrades to separate the clip when moving towards each other.

Als günstig hat sich herausgestellt, das Raffrad zum Zuführen des Clips zu nutzen. Insbesondere kann dies fortlaufend erfolgen, wozu der Clip als endloses Clip-Band um das Raffrad herum zugeführt wird, an dem es dann durch geeignete Mittel gehalten wird, wie z.B. durch Vakuum, mechanische Greif- oder Fixierelemente. Durch diese Ausgestaltung wird eine konstante Abschnittslänge des Clips erzielt, was eine wesentliche Voraussetzung für gleiche Längen der Clip-Enden darstellt. Nicht zuletzt zeichnet sich die vorliegende Vorrichtung darin aus, indem die Streifenzuführung fortlaufend über das Raffrad erfolgt. Hierdurch kann das Clip-Band in hoher Taktfolge abgezogen und positioniert werden. Störungsanfällige Abzugszangen etc. sind hierbei nicht notwendig.As low has been found to use the Raffrad for feeding the clip. In particular, this may be done continuously, to which the clip is fed as an endless clip band around the shirring wheel, where it is then held by suitable means, e.g. by vacuum, mechanical gripping or fixing elements. By this configuration, a constant section length of the clip is achieved, which is an essential prerequisite for equal lengths of the clip ends. Not least, the present device is characterized in that the strip feeding is carried out continuously on the Raffrad. As a result, the clip band can be pulled off and positioned at high speed. Fault-prone trigger pliers etc. are not necessary here.

Da es in einer Ausführungsform des erfindungsgemäßen Verfahren vorgesehen ist, dass der Clip bzw. das Clip-Band mit einer Aufreißkerbe versehen wird, können zudem Clip-Bandmaterialien aus Kunststoff verwendet werden. Um das fertig verpackte Produkt, welches mit einem Kunststoffclip verschlossen wird, praktikabel zu öffnen, ist es erforderlich eine Öffnungshilfe in Form einer Kerbe in den Kunststoffstreifen einzubringen.Since it is provided in one embodiment of the method according to the invention that the clip or the clip band is provided with a tear notch, clip plastic band material can also be used. In order to open the packaged product, which is closed with a plastic clip, workable, it is necessary to introduce an opening aid in the form of a notch in the plastic strip.

Bevorzugterweise erfolgt das Einbringen der Aufreißkerbe durch das Messer, das vor dem Raffen des Packmittelabschnitts am Stützelement auf das Clip-Band einwirkt.Preferably, the introduction of the tear notch by the knife, which acts on the clip element on the support element before shirring the packaging material section.

Dies geschieht an einer Position in der Clip-Bandzuführung, wobei hier vorteilhaft die von der Verschlussposition gegenüberliegende Station des Raffrades gewählt wurde. Denkbar sind aber auch andere Positionen, nicht zuletzt auch sogar vor dem Raffrad, was aber bezüglich der Lage der Kerbe ungenauer erfolgt.This takes place at a position in the clip tape feed, wherein here the advantageous opposite of the closing position station of the Raffrades was selected. Conceivable, however, are other positions, not least even before the Raffrad, but this is inaccurate with respect to the position of the notch.

Die Einbringung der Aufreißkerbe zur Schwächung des Clipquerschnittes erfolgt sinnvollerweise durch ein Messer, welches den Clip vorzugsweise an der Außenkante einschneidet.The introduction of the tear notch for weakening the clip cross-section is usefully carried out by a knife, which preferably the clip on the outer edge cuts.

Die örtliche Funktionstrennung, indem die einzelnen Verpackungsschritte an unterschiedlichen Positionen durchgeführt werden können, ermöglicht zudem eine überschneidende serielle Verpackung der Produkte, wodurch bereits mit der Verpackung der nachfolgenden Produkte begonnen werden kann, während die vorherigen Produkte noch fertig gestellt werden.
Vorteile der beschriebenen Erfindung liegen u.a. in der erreichbaren höheren Leistung als bei den bisher bekannten Einrichtungen sowie der Verwendbarkeit von Kunststoffstreifen als Verschlussmaterial.The local separation of functions, in which the individual packaging steps can be carried out at different positions, also enables overlapping serial packaging of the products, which already allows the packaging of the following products to be started while the previous products are still being completed.
Advantages of the invention described are, inter alia, the achievable higher performance than in the previously known devices and the usability of plastic strips as closure material.

Weitere Merkmale, Eigenschaften und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Beispiels anhand der Zeichnung, in der

  • Fig. 1 eine schematische Draufsicht auf einen horizontalen Schnitt durch eine Raffeinrichtung einer Verpackungsvorrichtung in der Ausgangsstellung zeigt;
  • Fig. 2 eine schematische Draufsicht auf die Raffeinrichtung aus Fig. 1 beim Raffen zeigt und
  • Fig. 3 eine schematische Draufsicht auf die Raffeinrichtung aus Fig. 1 beim Verschluss des Clips zeigt.
Further features, properties and advantages of the invention will become apparent from the following description of an example with reference to the drawing, in which
  • Fig. 1 shows a schematic plan view of a horizontal section through a shirring device of a packaging device in the starting position;
  • Fig. 2 a schematic plan view of the shirring from Fig. 1 while shirring shows and
  • Fig. 3 a schematic plan view of the shirring from Fig. 1 when closing the clip shows.

In den Figuren ist eine schematische Draufsicht auf einen horizontalen Schnitt durch eine Raffeinrichtung 1 einer Verpackungsvorrichtung dargestellt.In the figures, a schematic plan view is shown on a horizontal section through a gathering device 1 of a packaging device.

Um eine qualitätsgerechte automatische Herstellung des Raff-Einschlags mit Clipverschluss in einem hohen Leistungsbereich zu erreichen, sind die Funktionsbereiche für das Zusammenführen von Produkt und Packmittelabschnitt, als auch das Formen durch den Faltschacht (Bunchen) sowie die Anbringung des Clips an örtlich getrennten Positionen angeordnet.In order to achieve high-quality automatic production of the high-performance clip-on raffle closure, the functional areas for combining the product and packaging material section, as well as the folding box (Bunchen) and the attachment of the clip, are arranged in locally separate positions.

Im vorliegenden Fall ist zur Vereinfachung nur die Raffeinrichtung 1 an sich abgebildet. Es versteht sich jedoch, dass die Verpackungsvorrichtung auch eine an sich bekannte und somit nicht dargestellte Falteinrichtung mit einem Faltschacht aufweist, um das Produkt einzeln in einen Abschnitt eines Packmittels einzuschlagen.In the present case, only the shirring device 1 is shown for simplicity. However, it is understood that the packaging device also known per se and thus not shown folding device with a folding shaft to hammer the product one by one into a section of a package.

Somit kann bereits begonnen werden, das nachfolgende Produkt zu verpacken, während das vorherige Produkt noch fertig verpackt wird.Thus, it can already be started to pack the subsequent product while the previous product is still packed ready.

Dies ist dadurch gelöst, dass die zu verpackenden Produkte, z.B. auf der Bodenfläche liegend, zugeführt gegriffen und durch ein Transfermodul um 180° gedreht "über Kopf" mit dem Produktboden nach oben ausgerichtet unter einen Packmittelabschnitt positioniert wird. Durch eine Ober-Unterstempelübergabe wird das zu verpackende Produkt nach oben durch einen Faltschacht geschoben, wobei das Falten des Packstoffabschnittes um das Produkt erfolgt. Dieser Vorgang entspricht im wesentlichen dem bekannten Herstellen einer Bunch-Verpackung. In der oberen Lage der Ober-Unterstempelübergabe wird dann das Produkt an einen mehrteiligen Greiferkopf übergeben, dessen Greiferelemente das Produkt nachfolgend halten und der Packmittelüberstand durch entsprechende Formelemente, welche an den Greiferelementen befestigt sind, in seiner Position fixiert wird.This is solved by the products to be packaged, e.g. lying on the bottom surface, gripped and positioned by a transfer module rotated by 180 ° "overhead" with the product bottom upwards under a package center section. By a top-Unterstempelübergabe the product to be packaged is pushed up through a folding shaft, wherein the folding of the packaging material section takes place around the product. This process corresponds essentially to the known production of a bunch packaging. In the upper position of the upper-Unterstempelübergabe the product is then transferred to a multi-part gripper head, the gripper elements hold the product below and the packaging supernatant is fixed by appropriate form elements which are attached to the gripper elements in position.

Während dieser Zeit können der Ober- und der Unterstempel wieder in die Ausgangsposition zurückbewegt werden. Hierdurch kann bereits das nachfolgende Produkt durch die Ober-Unterstempelübergabe aufgenommen werden, während der Greiferkopf das teilweise verpackte Produkt zu einer nachfolgenden Station zur Raffposition transportiert.During this time, the upper and lower punches can be moved back to the starting position. As a result, the subsequent product can already be taken up by the upper underplate transfer, while the gripper head transports the partially packaged product to a subsequent station for the gathering position.

Hier erfolgt dann der vollständige Verschluss der Verpackung durch das Anbringen eines Verschlussstreifens bzw. Clips. Dazu dient die nachfolgend beschriebene Raffeinrichtung 1, wodurch der Packmittelüberstand zusammengerafft und mit einem Clip verschlossen wird.Here then the complete closure of the package by attaching a closure strip or clip. The purpose of the shirring device 1 described below, whereby the packaging supernatant is gathered and closed with a clip.

Die Raffeinrichtung 1 umfasst im wesentlichen zwei zueinander bewegliche Teile, nämlich ein Raffrad 2 und einen Raffschieber 3, die beim Aufeinanderzubewegen den das Produkt P umgebenden Packmittelabschnitt "oberhalb" des Produkts P zum Packmittelhals H formen bzw. raffen, der wiederum anschließend mittels des Clips C verschlossen wird.The shirring device 1 essentially comprises two parts which are movable relative to one another, namely a shirring wheel 2 and a shirring slider 3 which, when moving towards each other, form or gather the packaging means section "above" the product P to the package neck H, which in turn is then subsequently clamped by means of the clip C is closed.

Das Raffrad 2 ist um eine Achse 4 drehbar und gleichzeitig relativ zu dem Raffschieber 3 beweglich. Das Raffrad 2 der vorliegenden Ausführungsform umfasst sechs Raffplätze 5, die nacheinander mit der Raffposition durch Drehung um die Achse 4 in Übereinstimmung gebracht werden.The Raffrad 2 is rotatable about an axis 4 and at the same time relative to the Raffschieber 3 movable. The Raffrad 2 of the present embodiment comprises six Raffplatz 5, which are brought in succession with the shirring position by rotation about the axis 4 in accordance.

Die einzelnen Raffplätze 5 werden durch zwei Ebenen bildende beabstandete Raffelemente 6, 7 und einem dazwischen liegenden Stützelement 8 ausgebildet, wobei die Raffelemente 6, 7 quasi als Scheiben um die zentrale Drehachse 4 des Raffrads 2 ausgebildet sind.The individual Raffplätze 5 are formed by two levels forming shirring elements 6, 7 and an intermediate support member 8, wherein the shirring elements 6, 7 are formed as quasi disks around the central axis of rotation 4 of the shirring wheel 2.

Die Raffelemente 6, 7 bilden jeweils eine in Richtung des Produktes P offene Einkerbung etwa in Form eines "V" aus. In Verlängerung des Grundes des "V" ist jeweils das im Schnitt etwa rechteckige blockartige Stützelement 8 zwischen den scheibenförmigen Raffelementen 6, 7 angeordnet.The gathering elements 6, 7 each form a notch in the direction of the product P, for example in the form of a "V". In extension of the bottom of the "V" in each case the approximately rectangular block-like support element 8 between the disc-shaped shirring elements 6, 7 is arranged.

Der Raffschieber 3 weist dagegen lediglich einen Raffplatz 9 auf. Dieser wird durch zwei Ebenen bildende beabstandete Stützelemente 10, 11 und einem dazwischen liegenden Raffelement 12 ausgebildet.The shirred pusher 3, however, has only one Raffplatz 9. This is formed by two spaced-forming spaced support members 10, 11 and an intermediate Raffelement 12.

Das Raffelement 12 bildet eine in Richtung des Produktes P offene Einkerbung etwa in Form eines "V" aus. In Verlängerung des Grundes des "V" sind jeweils die im Schnitt etwa dreieckigen blockartigen Stützelemente 10, 11 angeordnet. Das Raffelement 12 ist relativ zu den Stützelementen 10, 11 verlagerbar ausgebildet.The shirring element 12 forms an open notch in the direction of the product P in the form of a "V". In extension of the bottom of the "V" in each case the approximately triangular block-like support elements 10, 11 are arranged. The shirring element 12 is designed to be displaceable relative to the support elements 10, 11.

Zusätzlich umfasst der Raffschieber 3 ein Messer 13, das zum Abtrennen des jeweiligen Clips C vom endlos zugeführten Clip-Band S dient (vgl. unten). Dazu ist das Messer 13 ebenfalls relativ zu dem Raffelement 12 verlagerbar ausgebildet und parallel zu den Kanten und seitlich an dem Raffelement 12 bzw. den Stützelementen 10, 11 angeordnet.In addition, the shirring pusher 3 comprises a knife 13, which serves for separating the respective clip C from the endlessly supplied clip band S (see below). For this purpose, the knife 13 is also designed to be displaceable relative to the gathering element 12 and arranged parallel to the edges and laterally on the gathering element 12 or the support elements 10, 11.

Die Raffelemente 6, 7 und 12 sowie die Stützelemente 8 und 10, 11 bilden beim Aufeinanderzubewegen den Packmittelhals H aus, wozu sie etwa eine sich verkleinernde Rautenform durch die sich aufeinanderzubewegenden V-förmigen Einkerbungen ausbilden, so dass der überstehende Packmittelabschnitt gerafft wird (vgl. Fig. 2).The gathering elements 6, 7 and 12 as well as the support elements 8 and 10, 11 form the package neck H when moving toward one another, for which they form a decreasing diamond shape through the V-shaped indentations to be moved against one another, so that the protruding packaging material section is gathered (cf. Fig. 2 ).

Die Raffelemente 6, 7, 12 und die Stützelemente 10, 11 weisen je eine etwa halbkreisförmige Ausnehmung 14 im Grund des jeweiligen "V" auf, so dass dabei ein etwa zylindrischer Packmittelhals H ausgebildet wird, da der Raffschieber 3 und das Raffrad 2 nur soweit aufeinander zu bewegt werden, dass diese Ausnehmungen 14 einen durchgehenden zylindrischen Raum in Richtung der Erstreckung des zu bildenden Packmittelhals H bilden. Der eigentliche Packmittelhals H wird also durch diesen zylindrischen Raum selbst geformt.
Das Raffelement 12 greift beim Aufeinanderzubewegen zwischen die Raffelemente 6, 7 ein und drückt das Packmittel gegen das Stützelement 8, so dass das Packmittel nach und nach durch den sich verkleinernden rautenförmigen Raum gerafft wird, bis das Packmittel vollständig zum Packmittelhals H gerafft ist und im zylindrischen Raum gedrängt ist.The shirring elements 6, 7, 12 and the support elements 10, 11 each have an approximately semicircular recess 14 in the bottom of the respective "V", so that in this case an approximately cylindrical Packungshals H is formed because the Raffschieber 3 and the Raffrad 2 only so far be moved toward each other, that these recesses 14 form a continuous cylindrical space in the direction of the extension of the packaging material neck H to be formed. The actual package neck H is thus formed by this cylindrical space itself.
The shirring element 12 engages between the shirring elements 6, 7 when they move toward each other and pushes the packaging against the support element 8, so that the packaging is gradually shirred by the decreasing diamond-shaped space until the packaging material is completely shirred to the package neck H and cylindrical Space is crowded.

Nun erfolgt das Verschließen des Packmittelhalses H mittels des Clip C.Now the closing of the package neck H by means of the clip C.

Der Clip C wird in genau definierter Länge von dem endlos zugeführten Clip-Band S durch das Messer 13 abgetrennt, wozu dies eine kleine relativ Bewegung in Richtung des Clip-Bandes zwischen die zwei Ebenen der Raffelemente 6,7 ausführt und gegen ein weiteres Stützelement 18 gedrückt wird (Matrizenschnitt) und sich anschließend zurück zieht. Die weiteren Stützelemente 18 sind jeweils analog den Stützelementen 8 im Zwischenraum zwischen den Raffelementen 6,7 und dabei zwischen den Stützelementen 8 angeordnet.The clip C is separated in exactly defined length from the endlessly supplied clip band S by the knife 13, to which this a small relative movement in the direction of the clip band between the two levels of shirring 6.7 executes and against another support element 18th is pressed (die cut) and then pulls back. The further support elements 18 are each arranged analogously to the support elements 8 in the intermediate space between the gathering elements 6, 7 and in this case between the support elements 8.

Das Clip-Band S wird als Streifen z.B. von einer Rolle o. ä. abgezogen und dem Raffrad 2 zugeführt. Es liegt dabei zwischen den zwei Ebenen der Raffelemente 6, 7 an den Stützelementen 8 auf, wo es durch Vakuum, Zangen etc. gehalten wird. Vorliegend wird Vakuum verwendet, so dass das Clip- Band S an die in geeigneter Weise ausgebildeten Stützelemente 8 angesaugt wird.The clip band S is called a strip e.g. withdrawn from a roll o. Ä. And the Raffrad 2 fed. It lies between the two levels of shirring elements 6, 7 on the support elements 8, where it is held by vacuum, pliers, etc. In the present case, vacuum is used, so that the clip band S is sucked onto the support elements 8 which are formed in a suitable manner.

Wie dargestellt liegt das Clip-Band S bzw. der Clip C vor dem Aufeinanderzubewegen des Raffrads 2 und des Raffschiebers 3 in dieser Position, so dass es automatisch an einer Seite des später gebildeten Packmittelhalses H anliegt (vgl. Fig. 1 und 2).As shown, the clip band S or the clip C lies in this position prior to the movement of the folding wheel 2 and the gathering slider 3 towards one another, so that it automatically rests against one side of the later-formed package neck H (cf. Fig. 1 and 2 ).

Um den Packmittelhals H auszubilden wird nun das Raffelement 12 zurückgezogen und gibt hierdurch den Weg für eine Faltzange 15 frei. Dabei wird der gebildete Packmittelhals H jedoch von den noch verbleibenden Stützelementen 10, 11 und Raffelementen 6, 7 oben und unten gehalten bzw. fixiert, so dass er seine Form beibehält.In order to form the package neck H, the gathering element 12 is now withdrawn and thereby clears the way for a folding pliers 15. This is the educated Packmittelhals H, however, held or fixed by the remaining support elements 10, 11 and shirring elements 6, 7 above and below, so that it retains its shape.

Dadurch bleibt der geraffte Packmittelüberstand weiterhin in der geformten Position fixiert und ein Wiederaufspringen des Packmittels bzw. des gebildeten Halses H wird vermieden.
Die Faltzange 15 umfasst zwei Backenelemente 16, 17, die jeweils zwischen den Ebenen der Raffelementen 6, 7 und Stützelemente 10, 11 im Raffrad 2 angeordnet sind. Sie sind dabei um die Achse 4 herum in Richtung des jeweiligen aktiven Raffplatzes 5 verschieblich und aufeinander zu und voneinander weg beweglich angeordnet.As a result, the shirred packaging supernatant remains fixed in the molded position and re-emergence of the packaging material or of the neck H formed is avoided.
The folding pliers 15 comprise two jaw elements 16, 17, which are each arranged between the planes of the gathering elements 6, 7 and supporting elements 10, 11 in the folding wheel 2. They are displaceable about the axis 4 in the direction of the respective active Raffplatzes 5 and arranged to move towards and away from each other.

Somit können sie um die Achse 4 herum zum Packmittelhals H im aktiven Raffplatz und aufeinander zu bewegt werden, um bei der Rückbewegung des Raffelements 12 den abgetrennten Clip C um den geformten Packmittelhals H des Produktes P zu legen, indem der Clip C durch eine schiebende Bewegung der Faltzange 15 bzw. ihrer Backenelemente 16, 17 in einer Ebene geführt durch die begrenzenden Raffelemente 6, 7 sowie den Stützelementen 10 und 11 um den Packmittelhals gelegt wird. Hierbei umgreifen sie auch das jeweilige Stützelement 8.Thus, they can be moved around the axis 4 to the Packungshals H in the active Raffplatz and each other to put the separated clip C around the molded packaging neck H of the product P on the return movement of the Raffelements 12 by the clip C by a sliding movement the folding pliers 15 and their jaw members 16, 17 guided in a plane through the limiting shirring elements 6, 7 and the support elements 10 and 11 is placed around the Packmittelhals. In this case, they also surround the respective support element 8.

Wenn das Raffelement 12 vollständig zurückgezogen ist, verschließt die Faltzange 15 den abgetrennten Clip C hinter dem Packmittelhals H durch Gegeneinanderdrücken der Backenelemente 16, 17.When the shirring element 12 is completely retracted, the folding pliers 15 closes the separated clip C behind the package neck H by pressing the jaw elements 16, 17 against each other.

Im vorliegenden Fall wird ein selbstklebender Clip C, z. B. aus Kunststoff verwendet, so dass das Produkt P nun verschlossen ist. Denkbar ist auch die Verwendung eines Clips, der durch Schmelzkleber, Kaltsiegelmasken etc aneinander gedrückt hält. Dann ist die Faltzange 15 entsprechend ausgestaltet, z. B. mit beheizbaren Backenelementen.In the present case, a self-adhesive clip C, z. B. made of plastic, so that the product P is now closed. It is also conceivable the use of a clip that holds pressed together by hot melt adhesive, cold seal masks etc .. Then the folding pliers 15 is configured accordingly, for. B. with heated baking elements.

Während der Clip C um den Packmittelhals H gelegt wird, befindet sich die Zuführung des Clipbands S in einer Rast. In dieser Bewegungspause des Raffrads 2 erfolgt eine Einbringung einer Aufreißkerbe in dem Clipband S als Öffnungshilfe durch ein bewegliches Messer 19. Dies geschieht an einer Position der Zuführung des ClipBands S, wobei der von der Verschlussposition gegenüberliegende nicht aktive Raffplatz des Raffrades 2 gewählt wurde. Denkbar sind aber auch andere Positionen, nicht zuletzt auch sogar vor dem Raffrad, was aber bezüglich der Lage der Kerbe ungenauer erfolgt.While the clip C is placed around the package neck H, the supply of the clip band S is in a snap. In this movement pause of the Raffrads 2 is carried out an introduction of a tear notch in the clip band S as an opening aid by a movable blade 19. This is done at a position of the supply of the ClipBands S, wherein the non-active Raffplatz of the Raffrades 2 opposite from the closure position was selected. Conceivable, however, are other positions, not least even before the Raffrad, but this is inaccurate with respect to the position of the notch.

Die Einbringung der Aufreißkerbe zur Schwächung des Streifenquerschnittes erfolgt durch das Messer 19, welches in der dargestellten Art und Weise während der Zuführungspause das Clip-Band S an der Außenkante einschneidet, indem es eine Bewegung zum Raffrad 2 hin ausführt und gegen das entsprechende Stützelement 8 gedrückt wird. Anschließend wird das Messer 19 zurückgezogen. Während der eigentlichen Zuführung des Clip-Bandes S bzw. Drehung des Raffrads ist das Messer 19 hingegen außer Eingriff.The introduction of the tear notch for weakening of the strip cross-section is carried out by the knife 19, which cuts in the manner shown during the feeding break the clip band S at the outer edge by it performs a movement to the rear wheel 2 back and pressed against the corresponding support member 8 becomes. Subsequently, the knife 19 is withdrawn. During the actual feeding of the clip band S or rotation of the Raffrads the knife 19, however, is disengaged.

Somit ist die Aufreißkerbe später mittig beim geschlossenen Clip C am Packmittelhals H angeordnet und erleichtert das Öffnen des Clips C.Thus, the tear notch is later centered with the closed clip C arranged on the packaging neck H and facilitates the opening of the clip C.

Anschließend fahren das Raffrad 2 und der Raffschieber 3 in ihre offenen Ausgangspositionen zurück, d.h. bewegen sich von einander weg. Somit wird das fertig verpackte Produkt P mit dem Clip C freigegeben. Das fertig verpackte und mit dem Clip C verschlossene Produkt P wird dann mittels des es haltenden Greifkopfs aus der Raffposition entfernt und eine neues noch zu raffendes und verschließendes Produkt zugeführt.Subsequently, the shirring wheel 2 and the shirring pusher 3 return to their open starting positions, i. move away from each other. Thus, the finished packaged product P is released with the clip C. The finished packaged product P closed with the clip C is then removed from the shirring position by means of the gripping head holding it and a new product still to be gathered and closed is fed.

Dabei dreht sich das Raffrad 2 um seine Achse 4, so dass der nächste Raffplatz 5 erneut mit einem Abschnitt des Clip-Bandes S versehen ist.In this case, the Raffrad 2 rotates about its axis 4, so that the next Raffplatz 5 is again provided with a portion of the clip band S.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Raffeinrichtunggathering device
22
Raffradgathering wheel
33
RaffschieberRaffschieber
44
Achseaxis
55
RaffplatzRaffplatz
66
Raffelementshirring
77
Raffelementshirring
88th
Stützelementsupport element
99
RaffplatzRaffplatz
1010
Stützelementsupport element
1111
Stützelementsupport element
1212
Raffelementshirring
1313
Messerknife
1414
Ausnehmungrecess
1515
FaltzangeFaltzange
1616
Backenelementjaw member
1717
Backenelementjaw member
1818
Stützelementsupport element
1919
Messerknife
PP
Produktproduct
CC
Clipclip
SS
Clip-BandClip band
HH
PackmittelhalsPackaging neck

Claims (26)

  1. Method of packing a product (P) in a section of a packaging material having a gathered constriction, in which the gathered region of the packaging material surrounding the product (P) is closed off with a clip, comprising the followed steps.
    - folding (bunching) of the section of packaging material around the product (P) in such a way that the section of packaging material surrounds the product (P) while leaving one end exposed,
    - gathering of the section of packaging medium above the product (P) at the end which was left exposed, to form a constricted neck (H) in the packaging material, and
    - closing off of the constricted neck in the packaging material by the fitting of a clip (C),
    the neck (H) in the packaging material being held fixed when it is being closed off and the clip (C) being fed in continuously as a strip clip (S), the section of packaging material, to cause it to be gathered to form the constricted neck (H) in the packaging material, being pressed together into a neck by parts (2, 3) which can be moved towards one another, characterised in that the pressing together is performed by the movement towards one another of a gathering pusher (3) and a gathering wheel (2), the gathering pusher (3) gathering the section of packaging material by means of spaced supporting members (10, 11) which are in two planes and a gathering member (12) which is situated between them, and the gathering wheel (2) gathering the section of packaging material by means of spaced gathering members (6, 7) which are in two planes and a supporting member (8) which is situated between them, and the gathering members (6, 7, 12) and supporting member (8, 10, 11) forming the neck in the packaging material when they are moved towards one another.
  2. Method according to claim 1, characterised in that the gathering pusher (3) and the gathering wheel (2) are moved, relative to one another, towards one another.
  3. Method according to either of the foregoing claims, characterised in that, when being closed off, the neck (H) is held fixed above and below the closing-off point.
  4. Method according to claim 1, characterised in that, when being moved towards one another, the gathering members (6, 7, 12) form approximately a diamond shape which becomes smaller in size.
  5. Method according to claim 1 or 4, characterised in that the gathering members (6, 7, 12) and supporting members (10, 11) each have an approximately semi-circular recess (14) at the apex of their respective incomplete vees, thus causing an approximately cylindrical neck (H) to be formed in the packaging material.
  6. Method according to one of claims 1 to 5, characterised in that the gathering member (12) engages between the gathering members (6, 7) when they are moved towards one another.
  7. Method according to one of the foregoing claims, characterised in that the clip (C), or in other words the clip strip (S), is formed from, in particular, plastics material
  8. Method according to one of claims 1 to 7, characterised in that the clip (C), or rather the clip strip (S), is fed between the two spaced gathering members (6, 7) and two spaced supporting members (10, 11)
  9. Method according to one of claims 1 to 8, characterised in that, before the section of packaging material is gathered, the clip (C) rests against the supporting member (8), being in particular held fixed by a holding means.
  10. Method according to one of claims 1 to 9, characterised in that, when the gathering member (12) is withdrawn, the supporting members (10, 11) of the gathering pusher (3) remain in position, thus causing the constricted neck (H) in the packaging material to be held fixed.
  11. Method according to one of claims 1 to 10, characterised in that the clip (C) is closed, in particular by a pushing folding movement, simultaneously with the gathering member (12) being moved away.
  12. Method according to one of the foregoing claims, characterised in that the clip (C), or in other words the clip strip (S), is provided with a notch for pulling open.
  13. Method according to claim 12, characterised in that the notch for pulling open is made, in particular in the outer edge of the clip strip (S), by a movable blade (19).
  14. Method according to claim 12 or 13, characterised in that the blade (19) acts on the clip strip (S), against the supporting member (8), before the section of packaging material is gathered.
  15. Method according to one of the foregoing claims, characterised in that the folding (bunching) and the gathering of the section of packaging material take place at points whose positions are separated.
  16. Apparatus for packing a product (P) in a section of a packaging material having a gathered constriction, in which the gathered region of the packaging material surrounding the product is closed off with a clip (C), having a folding duct to perform folding of the section of packaging material around the product (P) in such a way that the section of packaging material surrounds the product (P) while leaving one end exposed, having a gathering arrangement (1) to perform gathering of the section of packaging medium above the product (P) at the end which was left exposed, to form a constricted neck (H) in the packaging material, and having a means (2, 3) for closing off the constricted neck (H) in the packaging material by the fitting of a clip (C), members (6, 7, 10, 11) being provided to hold the neck (H) in the packaging material fixed when it is being closed off and means being provided to feed the clip (C) in continuously as a continuous strip clip (S), characterised in that the gathering arrangement (1) has a gathering pusher (3) and a gathering wheel (2) which are designed for movement relative to one another, the gathering pusher (3) having spaced supporting members (10, 11) which are in two planes and a gathering member (12) which is situated between them, and the gathering wheel (2) having spaced gathering members (6, 7) which are in two planes and a supporting member (8) which is situated between them.
  17. Apparatus according to claim 16, characterised in that the gathering members (6, 7, 12), in their respective cases, form approximately a vee shape.
  18. Apparatus according to claim 16 or 17, characterised in that the gathering members (6, 7, 12) and supporting members (10, 11) have an approximately semi-circular recess at the apex of each of the vees.
  19. Apparatus according to one of claims 16 to 18, characterised in that the supporting members (10, 11) of the gathering pusher (3) are designed to move independently of the gathering member (12).
  20. Apparatus according to one of claims 16 to 19, characterised in that the supporting members (8) of the gathering wheel (2) are designed to feed in the clip (C).
  21. Apparatus according to one of claims 16 to 20, characterised in that the gathering pusher (3) has a cutting-off means (13) for cutting off the clip (C).
  22. Apparatus according to one of claims 16 to 21, characterised in that the folding duct for the folding of the section of packaging material and the gathering arrangement (1) for the gathering thereof are arranged at points whose positions are separated.
  23. Apparatus according to one of claims 16 to 22, characterised in that a folding pincer (15) having two jaw members (16, 17) is provided to close the clip (C).
  24. Apparatus according to one of claims 16 to 23, characterised in that a unit, and in particular a blade (19), is provided to provide the clip (C), or rather the clip strip (S), with a notch for pulling open.
  25. Apparatus according to claim 24, characterised in that the blade (19) is orientated and arranged to make the notch for pulling open in the outside edge of the clip strip (S).
  26. Apparatus according to claim 24 or 25, characterised in that the blade (19) is designed to be able to be moved by means of means for movement which cause the blade (19) to make a movement towards the gathering wheel (2).
EP07104615A 2007-03-21 2007-03-21 Method and device for packing a product in a sheet of a packaging material closed by gathering Not-in-force EP1972560B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES07104615T ES2347481T3 (en) 2007-03-21 2007-03-21 PROCEDURE AND DEVICE FOR THE PACKAGING OF A PRODUCT IN A TREAT OF A PACKING MATERIAL WITH WRAPPED WRAPPING.
EP07104615A EP1972560B1 (en) 2007-03-21 2007-03-21 Method and device for packing a product in a sheet of a packaging material closed by gathering
AT07104615T ATE471872T1 (en) 2007-03-21 2007-03-21 METHOD AND DEVICE FOR PACKAGING A PRODUCT IN A SECTION OF A PACKAGING METER WITH RAFFED WRAPPING
DE502007004182T DE502007004182D1 (en) 2007-03-21 2007-03-21 Method and device for packaging a product in a section of a folded-wrap packaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07104615A EP1972560B1 (en) 2007-03-21 2007-03-21 Method and device for packing a product in a sheet of a packaging material closed by gathering

Publications (2)

Publication Number Publication Date
EP1972560A1 EP1972560A1 (en) 2008-09-24
EP1972560B1 true EP1972560B1 (en) 2010-06-23

Family

ID=38016737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07104615A Not-in-force EP1972560B1 (en) 2007-03-21 2007-03-21 Method and device for packing a product in a sheet of a packaging material closed by gathering

Country Status (4)

Country Link
EP (1) EP1972560B1 (en)
AT (1) ATE471872T1 (en)
DE (1) DE502007004182D1 (en)
ES (1) ES2347481T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1869116A (en) 1929-12-31 1932-07-26 Rambold Adolf Machine for closing little bags
DE2419072A1 (en) 1974-04-20 1975-11-06 Norpak Machines Ltd Bag mouth sealed by wrapping with two strips - which are cut and reconnected for wrapping next bag
EP0087310A1 (en) * 1982-02-19 1983-08-31 Michael Jackson Automatic weighing sealing and information producing machine
DE8602889U1 (en) 1986-02-05 1986-03-27 Affeldt Verpackungsmaschinen GmbH, 2200 Neuendorf Device for closing bags or the like.
DE19964458B4 (en) 1999-11-19 2007-04-19 Feodora Chocolade Gmbh & Co. Kg Device for packaging individual confectionery pieces

Also Published As

Publication number Publication date
EP1972560A1 (en) 2008-09-24
ES2347481T3 (en) 2010-10-29
ATE471872T1 (en) 2010-07-15
DE502007004182D1 (en) 2010-08-05

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