EP1140633B1 - Method and device for closing packagings made of flexible material - Google Patents

Method and device for closing packagings made of flexible material Download PDF

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Publication number
EP1140633B1
EP1140633B1 EP00902567A EP00902567A EP1140633B1 EP 1140633 B1 EP1140633 B1 EP 1140633B1 EP 00902567 A EP00902567 A EP 00902567A EP 00902567 A EP00902567 A EP 00902567A EP 1140633 B1 EP1140633 B1 EP 1140633B1
Authority
EP
European Patent Office
Prior art keywords
plait
clamp
closure
die
hold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00902567A
Other languages
German (de)
French (fr)
Other versions
EP1140633A1 (en
Inventor
Jürgen Hanten
Günter Vermehren
Gerhard Demmig
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.)
Poly Clip System GmbH and Co KG
Original Assignee
Poly Clip System 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 Poly Clip System GmbH and Co KG filed Critical Poly Clip System GmbH and Co KG
Publication of EP1140633A1 publication Critical patent/EP1140633A1/en
Application granted granted Critical
Publication of EP1140633B1 publication Critical patent/EP1140633B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a method for sealing packaging flexible material such as bags, hoses o. The like., In which a portion of the packaging material gathered into a pigtail and this into an open, essentially U-shaped locking clip with a clip base and two-sided clip legs is inserted, whereupon the legs of the closure clip annular to be bent around the braid.
  • the invention further relates to a device for Perform this procedure with a die to hold the open closure clip and a die movable die for bending the clip legs around the braid of the packaging material.
  • closing example of Sausage ends including the sealing clips and closing tools used for this purpose known.
  • the U-shaped pre-bent closure clips hang by means of at-the leg ends bent jacks together and form one stores supplyable staple strand from which during the working stroke of the closing tools the respective locking clip - in the middle of the connecting web to the next closure clip in the staple strand - is separated.
  • the web end portions are against the outside of the staple legs pressed and bent with these around the braid of the packaging material, wherein the leg ends and web portions butt pressed against each other and be compressed so that the braid of the packaging material as possible tightly compressed ring arises.
  • the invention wants to remedy this. It consists procedurally in that after the Insertion of the braid and before bending the staple legs of the braid axially next to the closure clip is pressed to the plane of the clip bottom. On this way it is prevented that the braid to the opening of the not yet closed Staple unfolded and the subsequent closing process the while bent leg of the closure clip pinch a fold of the braid and damage. Also can be a closure clip with shorter legs in particular with a thin braid of the packaging material requires less compression work during the closing process and a dense Closing the braid favors.
  • the device provided for carrying out the method according to the invention is characterized by at least one in the direction of braid laterally attached to the stamp Hold-down, the effective area of the working surface of the punch in the Movement direction surmounted by a small amount.
  • This measure can be about 1 to 5 mm, preferably it is 2 to 3 mm. Further preferred developments This device are also the subject of dependent claims.
  • a die 1 comprises with its trough-like recess 2 a closure clip 3 such that their clip base 4 and their legs 5 (the latter in part) are supported. Because the drawing figures state after completion of the Represent closing process, the punch 6, the legs 5 of the closure clip 3 already bent around the (in Fig. 1 cut) 7 braid and while the web portions 8 pressed against the outer sides of the legs 5.
  • the stamp 6 is laterally adjacent to the closure clip 3 receiving part the die 1 a hold-down 10 is mounted, the concave effective surface 11 the (also concave) working surface 12 of the punch 6 in which by the arrow 13th projected movement direction (down) surmounted.
  • the hold-down 10 With its active surface 11 first the braid 7 and pushes it down into the closure clip 3 against their clip base 4. Only then does the work surface 12 of the punch 6 closes the closure clip 3, by the ends of the legs 5 around the braid. 7 bends and in this way the closure clip 3 under compression annular closes tightly around the braid 7.
  • Fig. 2 makes it clear that during the (usual) simultaneous setting of two spaced apart Locking clips 3 on a correspondingly extended plait 7 - which are then separated centrally between the closure clips can - a corresponding double die 1 is provided with two punches 6, between which the two downholders 10 are arranged. It is recognizable how between the holders 10 there is the section of the braid 7 located there barrel-shaped expands while he to the closure brackets 3 out his shirred situation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Bag Frames (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Verschließen von Verpackungen aus flexiblem Material wie Beutel, Schläuche o. dgl., bei dem ein Abschnitt des Verpackungsmaterials zu einem Zopf gerafft und dieser in eine offene, im wesentlichen U-förmige Verschlußklammer mit einem Klammerboden und beidseitigen Klammerschenkeln eingelegt wird, worauf die Schenkel der Verschlußklammer ringförmig um den Zopf gebogen werden. Die Erfindung betrifft ferner eine Vorrichtung zum Ausführen dieses Verfahrens mit einer Matrize zum Halten der offenen Verschlußklammer und einen gegen die Matrize bewegbaren Stempel zum Biegen der Klammerschenkel um den Zopf des Verpackungsmaterials.The invention relates to a method for sealing packaging flexible material such as bags, hoses o. The like., In which a portion of the packaging material gathered into a pigtail and this into an open, essentially U-shaped locking clip with a clip base and two-sided clip legs is inserted, whereupon the legs of the closure clip annular to be bent around the braid. The invention further relates to a device for Perform this procedure with a die to hold the open closure clip and a die movable die for bending the clip legs around the braid of the packaging material.

Unter anderem aus der DE 38 44 052 C1 ist jenes Verschließen beispielsweise von Wurstenden einschließlich der dafür eingesetzten Verschlußklammern und Verschließwerkzeuge bekannt. Die U-förmig vorgebogenen Verschlußklammern hängen mittels an -den Schenkelenden abgekröpften Stegen aneinander und bilden einen magaziniert zuführbaren Klammerstrang, von dem beim Arbeitshub der Verschließwerkzeuge die jeweilige Verschlußklammer - in der Mitte des Verbindungssteges zur nächsten Verschlußklammer im Klammerstrang - abgetrennt wird. Beim Verschließvorgang werden die Steg-Endabschnitte gegen die Außenseite der Klammerschenkel gepreßt und mit diesen um den Zopf des Verpackungsmaterials gebogen, wobei die Schenkelenden und Stegabschnitte stumpf gegeneinandergepreßt und dabei gestaucht werden, so daß ein den Zopf des Verpackungsmaterials möglichst dicht zusammenpressender Ring entsteht.Among others, from DE 38 44 052 C1 is that closing example of Sausage ends including the sealing clips and closing tools used for this purpose known. The U-shaped pre-bent closure clips hang by means of at-the leg ends bent jacks together and form one stores supplyable staple strand from which during the working stroke of the closing tools the respective locking clip - in the middle of the connecting web to the next closure clip in the staple strand - is separated. During the closing process the web end portions are against the outside of the staple legs pressed and bent with these around the braid of the packaging material, wherein the leg ends and web portions butt pressed against each other and be compressed so that the braid of the packaging material as possible tightly compressed ring arises.

Diese Technik hat sich allgemein bewährt. Es kann jedoch vor allem in bestimmten Fällen, namentlich bei relativ steifem Verpackungsmaterial, zu Fehlfunktionen dadurch kommen, daß der - beispielsweise von Verdrängerscheren gebildete und in die noch offene Verschlußklammer eingelegte -Zopf etwas aufspringt und beim nachfolgenden Verschließen der Klammer diese das Verpackungsmaterial verletzt, so daß die Verpackung, etwa eine Wursthülle, undicht wird.This technique has proven itself in general. However, it can be specific in particular Cases, especially with relatively stiff packaging material, to malfunction come that the - educated example of displacement shears and in the still open shutter clip inserted-Zopf jumps up a bit and at subsequent closure of the clip that violates the packaging material, so that the packaging, such as a sausage casing, is leaking.

Dem will die Erfindung abhelfen. Sie besteht verfahrensmäßig darin, daß nach dem Einlegen des Zopfes und vor dem Biegen der Klammerschenkel der Zopf axial neben der Verschlußklammer zur Ebene des Klammerbodens hin gedrückt wird. Auf diese Weise wird verhindert, daß sich der Zopf zur Öffnung der noch nicht verschlossenen Klammer hin entfaltet und beim anschließenden Verschließvorgang die dabei gebogenen Schenkel der Verschlußklammer eine Falte des Zopfes einklemmen und beschädigen. Auch läßt sich eine Verschlußklammer mit kürzeren Schenkeln einsetzen, die namentlich bei einem dünnen Zopf des Verpackungsmaterials weniger Staucharbeit während des Verschließvorganges erfordert und ein dichtes Verschließen des Zopfes begünstigt.The invention wants to remedy this. It consists procedurally in that after the Insertion of the braid and before bending the staple legs of the braid axially next to the closure clip is pressed to the plane of the clip bottom. On this way it is prevented that the braid to the opening of the not yet closed Staple unfolded and the subsequent closing process the while bent leg of the closure clip pinch a fold of the braid and damage. Also can be a closure clip with shorter legs in particular with a thin braid of the packaging material requires less compression work during the closing process and a dense Closing the braid favors.

Beispielsweise aus der DE-A-37 05 829 ist es bekannt, den Zopf des Verpakkungsmaterials zwischen zwei aufeinanderfolgenden Verpackungen mittels sogenannten Verdrängern zu bilden, weiche den Zopf allseitig umfassen, während daneben eine Verschlussklammer von einem Stempel zugeführt und um den Zopf geführt sowie durch Anpressen an eine Matrize geschlossen wird. Weil die Verdränger den Zopf vollständig umschließen, tritt das oben geschilderte Problem dort nicht auf.For example, from DE-A-37 05 829 it is known, the braid of Verpakkungsmaterials between two successive packages by means of so-called To form displacers, which include the pigtail on all sides while next to it a closing clip fed by a stamp and around the braid guided and closed by pressing on a die. Because the displacer completely enclose the braid, the problem described above occurs there not up.

Die zur Ausführung des erfindungsgemäßen Verfahrens vorgesehene Vorrichtung zeichnet sich durch mindestens einen in Zopfrichtung seitlich am Stempel befestigten Niederhalter aus, dessen Wirkfläche die Arbeitsfläche des Stempels in dessen Bewegungsrichtung um ein geringes Maß überragt. Dieses Maß kann etwa 1 bis 5 mm betragen, vorzugsweise beträgt es 2 bis 3 mm. Weitere bevorzugte Weiterbildungen dieser Vorrichtung sind ebenfalls Gegenstand von Unteransprüchen. The device provided for carrying out the method according to the invention is characterized by at least one in the direction of braid laterally attached to the stamp Hold-down, the effective area of the working surface of the punch in the Movement direction surmounted by a small amount. This measure can be about 1 to 5 mm, preferably it is 2 to 3 mm. Further preferred developments This device are also the subject of dependent claims.

Die Zeichnung veranschaulicht die Erfindung an einem Ausführungsbeispiel, darin zeigt:

Fig. 1
eine Seitenansicht der erfindungsgernäßen Verschließvorrichtung in der Verschließstellung nach dem Verpressen einer Verschlußklammer um den - abgeschnittenen - Zopf von Verpackungsmaterial; und
Fig. 2
eine perspektivische Frontansicht der - gemäß der Linie II - II in Fig. 1 geschnittenen - Vorrichtung mit einem von zwei Verschlußklammern verschlossenen Zopf aus Verpackungsmaterial.
The drawing illustrates the invention of an embodiment, in which:
Fig. 1
a side view of the inventive closure device in the Verschließstellung after pressing a closure clip to the - cut - plait of packaging material; and
Fig. 2
a front perspective view of - cut according to the line II - II in Fig. 1 - device with a closed by two closure braid pigtail of packaging material.

Eine Matrize 1 umfaßt mit ihrer trogartigen Ausnehmung 2 eine Verschlußklammer 3 derart, daß ihr Klammerboden 4 und ihre Schenkel 5 (letztere teilweise) abgestützt sind. Weil die Zeichnungsfiguren den Zustand nach Abschluß des Verschließvorganges darstellen, hat der Stempel 6 die Schenkel 5 der Verschlußklammer 3 bereits um den (in Fig. 1 geschnittenen) Zopf 7 herumgebogen und dabei die Stegabschnitte 8 gegen die Außenseiten der Schenkel 5 gedrückt.A die 1 comprises with its trough-like recess 2 a closure clip 3 such that their clip base 4 and their legs 5 (the latter in part) are supported. Because the drawing figures state after completion of the Represent closing process, the punch 6, the legs 5 of the closure clip 3 already bent around the (in Fig. 1 cut) 7 braid and while the web portions 8 pressed against the outer sides of the legs 5.

Am Stempel 6 ist seitlich neben dem die Verschlußklammer 3 aufnehmenden Teil der Matrize 1 ein Niederhalter 10 angebracht, dessen konkave Wirkfläche 11 die (ebenfalls konkave) Arbeitsfläche 12 des Stempels 6 in dessen durch den Pfeil 13 angegebenen Bewegungsrichtung (nach unten) überragt. Beim Arbeitshub des Stempels 6 legt sich mithin der Niederhalter 10 mit seiner Wirkfläche 11 zuerst an den Zopf 7 an und drückt diesen nach unten in die Verschlußklammer 3 gegen ihren Klammerboden 4. Erst danach schließt die Arbeitsfläche 12 des Stempels 6 die Verschlußklammer 3, indem sie die Enden der Schenkel 5 um den Zopf 7 herumbiegt und auf diese Weise die Verschlußklammer 3 unter Stauchen ringförmig eng um den Zopf 7 schließt.The stamp 6 is laterally adjacent to the closure clip 3 receiving part the die 1 a hold-down 10 is mounted, the concave effective surface 11 the (also concave) working surface 12 of the punch 6 in which by the arrow 13th projected movement direction (down) surmounted. At the working stroke of the Stamp 6 thus places the hold-down 10 with its active surface 11 first the braid 7 and pushes it down into the closure clip 3 against their clip base 4. Only then does the work surface 12 of the punch 6 closes the closure clip 3, by the ends of the legs 5 around the braid. 7 bends and in this way the closure clip 3 under compression annular closes tightly around the braid 7.

Fig. 2 macht deutlich, daß beim (üblichen) gleichzeitigen Setzen zweier beabstandeter Verschlußklammern 3 auf einem entsprechend lang ausgezogenen Zopf 7 - der anschließend mittig zwischen den Verschlußklammern aufgetrennt werden kann - eine entsprechende Doppelmatrize 1 mit zwei Stempeln 6 vorgesehen ist, zwischen denen die beiden Niederhalter 10 angeordnet sind. Es ist erkennbar, wie zwischen den Niederhaltern 10 sich der dort befindliche Abschnitt des Zopfes 7 tonnenförmig aufweitet, während er zu den Verschlußklammern 3 hin seine geraffte Lage beibehalten hat.Fig. 2 makes it clear that during the (usual) simultaneous setting of two spaced apart Locking clips 3 on a correspondingly extended plait 7 - which are then separated centrally between the closure clips can - a corresponding double die 1 is provided with two punches 6, between which the two downholders 10 are arranged. It is recognizable how between the holders 10 there is the section of the braid 7 located there barrel-shaped expands while he to the closure brackets 3 out his shirred situation.

Claims (6)

  1. Method for closing packages made of flexible material such as bags, tubes or the like, in which a section of the packaging material is gathered into a plait (7) and the latter is laid in an open-topped, substantially U-shaped closure clamp (3) with a clamp bottom (4) and clamp arms (5) on both sides, whereupon the arms (5) of the closure clamp (3) are bent into a ring round the plait (7), characterised in that after laying the plait (7) and before bending the clamp arms (5) the plait (7) is forced axially adjacent to the closure clamp (3) towards the plane of the clamp bottom.
  2. Apparatus for carrying out the method according to claim 1, with a bottom die (1) for holding the open closure clamp (3) and a top die (6) which is movable towards the bottom die for bending the clamp arms (5) round the plait (7) of packaging material, wherein the top die (6) has a concave working surface (12), characterised by at least one hold-down device (10) which is laterally attached to the top die (6) in the axial direction of the concave working surface (12) and of which the operative surface (11) protrudes a small amount beyond the working surface (12) of the top die (6) in the direction (13) of movement thereof.
  3. Apparatus according to claim 2, characterised in that the amount is 1 to 5 mm, preferably 2 to 3 mm.
  4. Apparatus according to claim 2 or 3, characterised in that the operative surface (11) of the hold-down device (1) is concavely curved transversely to the plait direction.
  5. Apparatus according to any of claims 2 to 4, characterised in that the hold-down device (10) is arranged on the side of the top die (6) facing towards the free end of the plait.
  6. Apparatus according to any of claims 2 to 4 with in each case two spaced-apart bottom dies (1) and associated top dies (6) for simultaneously closing two closure clamps (3) on a plait (7) of packaging material which is gathered over a corresponding length, characterised in that two hold-down devices (10) are arranged between the two top dies (6) and. in each case attached to the adjacent top die.
EP00902567A 1999-01-14 2000-01-07 Method and device for closing packagings made of flexible material Expired - Lifetime EP1140633B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19901220A DE19901220B4 (en) 1999-01-14 1999-01-14 Method and device for closing packages of flexible material
DE19901220 1999-01-14
PCT/EP2000/000061 WO2000041933A1 (en) 1999-01-14 2000-01-07 Method and device for closing packagings made of flexible material

Publications (2)

Publication Number Publication Date
EP1140633A1 EP1140633A1 (en) 2001-10-10
EP1140633B1 true EP1140633B1 (en) 2004-02-04

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Application Number Title Priority Date Filing Date
EP00902567A Expired - Lifetime EP1140633B1 (en) 1999-01-14 2000-01-07 Method and device for closing packagings made of flexible material

Country Status (6)

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US (1) US6675554B1 (en)
EP (1) EP1140633B1 (en)
AU (1) AU2435500A (en)
DE (2) DE19901220B4 (en)
ES (1) ES2212767T3 (en)
WO (1) WO2000041933A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102007011423A1 (en) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co Kg Closing tool assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060174590A1 (en) * 2005-02-04 2006-08-10 Robert Pinto Net clip and clipper
US7565780B2 (en) * 2005-02-04 2009-07-28 Poly-Clip System Corp. Clip and clipper
DE202006012324U1 (en) * 2006-08-10 2006-12-21 Poly-Clip System Gmbh & Co. Kg Clipping machine comprises at least two pairs of displacement elements whose radial direction of motion roughly corresponds to the radial direction of motion of the closure tools

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Publication number Priority date Publication date Assignee Title
DE102007011423A1 (en) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co Kg Closing tool assembly

Also Published As

Publication number Publication date
AU2435500A (en) 2000-08-01
DE19901220B4 (en) 2004-04-08
EP1140633A1 (en) 2001-10-10
WO2000041933A1 (en) 2000-07-20
DE19901220A1 (en) 2000-07-27
DE50005192D1 (en) 2004-03-11
ES2212767T3 (en) 2004-08-01
US6675554B1 (en) 2004-01-13

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