EP0719634A2 - Process and apparatus for preparing parallel production of tubular bags - Google Patents
Process and apparatus for preparing parallel production of tubular bags Download PDFInfo
- Publication number
- EP0719634A2 EP0719634A2 EP95119023A EP95119023A EP0719634A2 EP 0719634 A2 EP0719634 A2 EP 0719634A2 EP 95119023 A EP95119023 A EP 95119023A EP 95119023 A EP95119023 A EP 95119023A EP 0719634 A2 EP0719634 A2 EP 0719634A2
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- European Patent Office
- Prior art keywords
- strip
- packaging material
- elements
- material web
- shaped
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/16—Cutting webs
- B31B70/18—Cutting webs longitudinally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/36—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
- B31B50/38—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores the members being forming-tubes
- B31B50/40—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores the members being forming-tubes acting internally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B2220/00—Specific aspects of the packaging operation
- B65B2220/06—Cutting webs along their longitudinal direction
Definitions
- the invention relates to a method and a device for preparing the parallel production of in particular tubular bag packs with a small width from a packaging material web cut into several strips of the same width, the strips being molded continuously and clocked onto a corresponding number of shaped tubes and being longitudinally sealed.
- Parallel production is understood to mean that a corresponding number of tubular bag packs are produced simultaneously and next to one another on a number of parallel shaped tubes.
- tubular bag With regard to the tubular bag, reference is made to DE-U-93 12 664. These tubular bag packs have relatively small dimensions, i.e. a width of only about 2 cm and a length of about 10 to 15 cm.
- Such tubular bags are manufactured with a device which consists of packaging material web transport elements arranged on a device frame, a strip cutting device with molded tubes arranged behind one another in series, each with a strip width and corresponding in circumference of the strip width, to which guiding elements, provided that there is no overlap sealing for the sealing strips and from packaging material web-forming elements which can be placed on both sides of the cylindrical shaped tubes, longitudinal sealing tools being arranged behind them in the conveying direction and behind the shaped tube ends a transverse cutting device, which is followed by a transverse sealing tool which can be moved up and down.
- the cut strips are formed in such a way that the abutting edges of each strip lie centrally over the inserted sealing strips and are sealed longitudinally with them, after which the packaging tubes formed are sealed behind the ends of the molding tubes, pulled off the desired bag length and cut off from the following packaging tube become.
- the invention is therefore based on the object to provide a method and a device for preparing the actual parallel production of tubular bag packs of the type mentioned or to improve the devices used hitherto in such a way that the previously difficult and relatively time-consuming process of forming the strips on the shaped pipes is eliminated .
- this object is achieved according to the invention in that the longitudinal cuts for the strip division of the packaging material web only begin after an uncut advance of the packaging material web, the beginning of cuts in the packaging material web with this led to at least the ends of the shaped tubes, then first the strips in the middle and then the strip edges are applied to the shaped tubes and sealed longitudinally and the uncut lead of the packaging material web is cut off after a first transverse sealing.
- the difficult and time-consuming threading and shaping work of the individual strips on the shaped tubes in the confined space conditions is eliminated, i.e. the packaging material web to be cut into strips can be inserted into the device as in the production of normal tubular bag packs be introduced and this then continues in the normal way as before after the start cycle to be controlled in particular.
- the whole thing is bought with a small loss of packaging material, but this is out of all proportion to the difficulties that have so far been encountered in order to be able to start such devices at all.
- the strips created as a result of the subsequent cut are held together, no longer hang freely downwards and extend exactly parallel to the molded tubes.
- An essential prerequisite for this is that the cutting knives and their counter element can be separated from each other and kept apart until the lead length is at least as far as the ends of the shaped tube. Only then is the cutting device brought into effect by moving it together and the packaging material web is conveyed on until the beginning of the cut is at or somewhat behind the ends of the shaped tube. Since packaging material strips are now present in the area of the packaging material molding elements, the molding elements can be applied to the molding tubes by molding the strips, in which position these, as before, also, remain until the respective packaging material web supply roll is used up.
- the method according to the invention and the associated device are intended in particular for tubular bag packs of small width and those which are longitudinally sealed with an inner sealing strip in the region of their packaging material edges.
- an inner sealing strip in the region of their packaging material edges.
- the method and device there is nothing to prevent the method and device from being used even if the tubular bags to be produced should have larger widths, as mentioned above, and also if the longitudinal seam sealing is carried out in a manner other than with an inserted inner sealing strip, that is to say overlapping, for example Striped edges.
- the device for carrying out the method consists, as hitherto, of packaging material web guide elements 2 arranged on a device frame 1, a strip cutting device 3 with molded tubes 4 arranged behind one another in series, each with a strip width, corresponding to the width of the strip, and with which the packaging material molded elements can be placed on both sides of the cylindrical molded tubes 4 6 are assigned, a longitudinal cutting device 8 being arranged behind these longitudinal sealing tools 7 in the conveying direction and behind the shaped tube ends 4 ', which is followed by a transverse sealing tool 9 which can be moved up and down.
- 1 shows a device in which a sealing strip SS is guided from the other side and guided by a guide element 2 'to the respective shaped tube 4 in order to seal longitudinally sealed strip edges SR.
- the elements of the cutting device 3 involved in the strip cut are designed such that they can be separated relative to one another with respect to the pass plane E of the packaging material web P and that the elements 6 'which directly and centrally capture the strips S of the packaging material molding elements 6 Molded tube diameter corresponding to semi-cylindrical molded surface F and the elements 6 '' corresponding to the strip edges SR detecting quarter-cylindrical molded surface F 'and these two elements 6' 'are coupled to actuators SG such that their abutment on the strip edges SR and the molded tube 4 with already applied semi-cylindrical molding surface F takes place.
- the elements involved in the strip cut are formed from paired circular cutting knives 10 with reference to FIG. 4A.
- FIG. 4B all circular cutting knives 10 sit together on shafts 11, which are supported on both sides on linkages 12 that are adjustable like scissors.
- the actuating means and drives for the actuation of one or the other shaft 11 are not particularly shown, since there are various constructive possibilities for this, it being pointed out that the scissor-like assignment of the linkages 12 is advantageous but not mandatory.
- FIGS. 5A, B With regard to the design of the packaging material molding elements, reference is made to FIGS. 5A, B.
- the dashed lines indicate how the relevant strip is from this element 6' on Shaped tube 4 is deformed or applied to this.
- These elements 6 ' all sit together on a carrier T which is vertically adjustable back and forth against the plane of passage of the packaging material web or the packaging material strip.
- the counter elements for forming the strip edges SR are illustrated as an exemplary embodiment in FIG. 5B.
- the quarter-cylindrical shaped surfaces F ' are designed as shells which are pivotably mounted on both sides at the height of the molded tube axis 4''. These shells, too, are seated on back and forth movable supports which, for example, can be constructed in a computational manner for all shells. These shells are moved to the strip edges SR (see FIG. 5A) with the opening position shown in dashed lines and closed by means of an actuating linkage SG, the strip edges SR being applied to the shaped tubes 4.
- the quarter-cylindrical contact surfaces F ' can, however, also be parts of block-like elements in the sense of FIG.
- strip edges SR are not butted but are to be sealed longitudinally overlapping, they are designed to remain in the embodiment according to FIG. 5B in the sense of FIG. 5C, that is, on the side of the strip edge to be placed SR the shell is somewhat shorter in its arc length and the other is held somewhat longer for the overlapping strip edge SR, the closure or application of this longer shell having to lag somewhat.
- the cutting blades 10 of the strip cutting device 3 are opened in preparation for the machine for continuous running, as are the shaping elements 6 ', 6' 'and also the transverse sealing tool 9 with its sealing jaw, so that the packaging material web is uncut and is guided over the guide 2 until something can be pulled under the transverse sealing tool 9.
- the closing and starting of the cutting device 3 is coupled, and the packaging material web, now cut into strips S, is retightened until the beginning of the cut is under the shaped tube ends 4 '.
- the packaging material molding elements 6, namely the elements 6 'first are placed against the shaped tubes 4 while deforming the strips according to FIG.
- a cross-cutting device 8 is arranged which cuts off the packaging tube strand formed directly below the cross-sealing seam formed, ie, in this case there are cross-sealed and open ends at other ends Packaging material tubes for further processing, ie filling and closing.
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- Containers And Plastic Fillers For Packaging (AREA)
- Making Paper Articles (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Vorbereitung der Parallelherstellung von insbesondere Schlauchbeutelpackungen mit geringer Breite aus einer in mehrere gleichbreite Streifen geschnittenen packstoffbahn, wobei die Streifen fortlaufend und getaktet an eine entsprechende Anzahl von Formrohren angeformt und längsversiegelt werden.The invention relates to a method and a device for preparing the parallel production of in particular tubular bag packs with a small width from a packaging material web cut into several strips of the same width, the strips being molded continuously and clocked onto a corresponding number of shaped tubes and being longitudinally sealed.
Unter "Parallelherstellung" ist dabei zu verstehen, daß gleichzeitig und nebeneinander an einer Anzahl paralleler Formrohre eine entsprechende Anzahl von Schlauchbeutelpackungen hergestellt werden."Parallel production" is understood to mean that a corresponding number of tubular bag packs are produced simultaneously and next to one another on a number of parallel shaped tubes.
Bezüglich der Schlauchbeutel wird auf das DE-U-93 12 664 verwiesen. Diese Schlauchbeutelpackungen haben relativ kleine Abmessungen, d.h. eine Breite von etwa nur 2 cm und eine Länge von etwa 10 bis 15 cm. Hergestellt werden solche Schlauchbeutel mit einer Vorrichtung, die aus an einem Vorrichtungsgestell angeordneten Packstoffbahntransportelementen, einer Streifenschneideinrichtung mit hinter dieser in Reihe nebeneinander, jeweils mit Streifenbreite beabstandet angeordneten, im Umfang der Streifenbreite entsprechenden Formrohren besteht, denen, vorausgesetzt, daß keine Überlappungsversiegelung erfolgen soll, Führungselemente für die Siegelstreifen und aus beidseitig an die zylindrischen Formrohre anlegbare Packstoffbahnanformelemente zugeordnet sind, wobei hinter diesen in Förderrichtung Längssiegelwerkzeuge und hinter den Formrohrenden eine Querschneideinrichtung angeordnet sind, welcher ein auf und ab bewegbares Quersiegelwerkzeug nachgeschaltet ist. Die Anformung der geschnittenen Streifen erfolgt dabei in der Weise, daß die gegeneinandergestoßenen Ränder jedes Streifens mittig über den eingeführten Siegelstreifen liegen und mit diesen längsversiegelt werden, wonach die gebildeten Packstoffrohre hinter den Enden der Formrohre querversiegelt, um die gewünschte Beutellänge abgezogen und vom folgenden Packstoffrohr abgeschnitten werden.With regard to the tubular bag, reference is made to DE-U-93 12 664. These tubular bag packs have relatively small dimensions, i.e. a width of only about 2 cm and a length of about 10 to 15 cm. Such tubular bags are manufactured with a device which consists of packaging material web transport elements arranged on a device frame, a strip cutting device with molded tubes arranged behind one another in series, each with a strip width and corresponding in circumference of the strip width, to which guiding elements, provided that there is no overlap sealing for the sealing strips and from packaging material web-forming elements which can be placed on both sides of the cylindrical shaped tubes, longitudinal sealing tools being arranged behind them in the conveying direction and behind the shaped tube ends a transverse cutting device, which is followed by a transverse sealing tool which can be moved up and down. The cut strips are formed in such a way that the abutting edges of each strip lie centrally over the inserted sealing strips and are sealed longitudinally with them, after which the packaging tubes formed are sealed behind the ends of the molding tubes, pulled off the desired bag length and cut off from the following packaging tube become.
Dieses Verfahren und die Vorrichtung arbeiten zwar einwandfrei, problematisch ist es dabei jedoch, die Vorrichtung bzw. diese spezielle Art von Schlauchbeutelherstellungsmaschine vorzubereiten und in Gang zu setzen, da die Packstoffbahn direkt in die Schneideinrichtung eingeführt wird, hinter der dann diese Bahn in Form parallelgeschnittener Streifen herausläuft, was bedeutet, daß jeder freihängende Streifen von Hand an das jeweilige Formrohr sorgfältig angelegt werden muß, um dann die Anformelemente anlegen und den eigentlichen Herstellungsvorgang für derartige Schlauchbeutelpackungen beginnen zu können, die übrigens einseitig offen und ungefüllt bleiben, um anschließend in einer separaten Füll- und Schließmaschine gefüllt und geschlossen zu werden. Bei den bisher benutzten Schneideinrichtungen handelt es sich um auf einer Welle sitzende Rundschneidmesser, die über einem Schneidtisch angeordnet sind und mit diesem zusammenwirken, d.h., immer scharfe Trennschnitte sind damit nicht gewährleistet. Unscharfe Schnittränder an den Streifen können aber, wenn bspw. lichtdichter Packstoff verarbeitet werden soll, zu partiell lichtundichten Stoßnähten an den Schlauchbeuteln führen.Although this method and the device work perfectly, it is problematic, however, the device or this Prepare and start a special type of tubular bag manufacturing machine, since the packaging material web is introduced directly into the cutting device, behind which this web then runs in the form of parallel-cut strips, which means that each free-hanging strip must be carefully placed on the respective molded tube by hand, in order then to be able to put on the molding elements and to be able to start the actual production process for such tubular bag packs, which incidentally remain open and unfilled on one side, and then be filled and closed in a separate filling and closing machine. The cutting devices used up to now are circular cutting knives sitting on a shaft, which are arranged above a cutting table and interact with it, ie, always sharp cutting cuts are not guaranteed. Blurred cut edges on the strips can, however, if light-tight packaging material is to be processed, lead to partially light-leaking butt seams on the tubular bags.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Vorbereitung der eigentlichen Parallelherstellung von Schlauchbeutelpackungen der genannten Art zu schaffen bzw. die dafür bisher benutzten Vorrichtungen dahingehend zu verbessern, daß der bisher schwierige und relativ zeitaufwendige Vorgang der Streifenanformung an die Formrohre wegfällt.The invention is therefore based on the object to provide a method and a device for preparing the actual parallel production of tubular bag packs of the type mentioned or to improve the devices used hitherto in such a way that the previously difficult and relatively time-consuming process of forming the strips on the shaped pipes is eliminated .
Bezüglich des Verfahrens ist diese Aufgabe nach der Erfindung dadurch gelöst, daß die Längsschnitte zur Streifenaufteilung der Packstoffbahn erst nach einem ungeschnittenen Vorlauf der Packstoffbahn begonnen, die Schnittanfänge in der Packstoffbahn mit dieser bis mindestens zu den Enden der Formrohre geführt, danach zuerst die Streifen mittig und dann die Streifenränder an die Formrohre angelegt und längsversiegelt werden und der ungeschnittene Vorlauf der Packstoffbahn nach einer ersten Querversiegelung abgeschnitten wird.With regard to the method, this object is achieved according to the invention in that the longitudinal cuts for the strip division of the packaging material web only begin after an uncut advance of the packaging material web, the beginning of cuts in the packaging material web with this led to at least the ends of the shaped tubes, then first the strips in the middle and then the strip edges are applied to the shaped tubes and sealed longitudinally and the uncut lead of the packaging material web is cut off after a first transverse sealing.
An der Grundkonzeption der Vorrichtung, wie oben erläutert, ändert sich praktisch nichts; nach der Erfindung unterscheidet sich diese aber dadurch, daß die am Streifenschnitt beteiligten Elemente der Schneideinrichtung relativ zueinander in bezug auf die Durchlaufebene der Packstoffbahn auseinanderfahrbar ausgebildet sind und daß von den Packstoffanformelementen die die Streifen direkt und mit erfassenden Elemente eine der dem Formrohrdurchmesser entsprechende, halbzylindrische Anformfläche und die die Streifenränder erfassenden Elemente entsprechende, viertelzylindrische Anformflächen aufweisen und diese beiden Elemente mit Stellgliedern derart gekoppelt sind, daß deren Anlage an die Streifenränder und das Formrohr bei bereits angelegter halbzylindrischer Anformfläche erfolgt.Practically nothing changes in the basic design of the device, as explained above; According to the invention, this differs in that those involved in the strip cut Elements of the cutting device are designed such that they can be moved apart relative to one another with respect to the passage plane of the packaging material web, and that of the packaging material molding elements that have the strips directly and with elements that grip them have a semi-cylindrical molding surface that corresponds to the shaped tube diameter and that elements that measure the strip edges and have quarter-cylindrical molding surfaces, and these two Elements are coupled with actuators in such a way that their abutment against the strip edges and the molded tube takes place when the semi-cylindrical shaping surface has already been applied.
Mit der erfindungsgemäßen Verfahrensweise und der zu ihrer Durchführung bestimmten Vorrichtung fällt also die bei den beengten Raumverhältnissen schwierige und zeitaufwendige Einfädel- und Anformarbeit der Einzelstreifen an die Formrohre weg, d.h., die in Streifen zu schneidende Packstoffbahn kann wie bei der Herstellung normaler Schlauchbeutelpackungen in die Vorrichtung eingeführt werden und diese läuft dann nach dem besonders zu steuernden Anfahrtakt in normaler Weise wie bisher auch weiter. Das Ganze wird zwar mit einem kleinen Packstoffbahnverlust erkauft, der aber in keinem Verhältnis zu den Schwierigkeiten steht, die bisher hingenommen werden mußten, um solche Vorrichtungen überhaupt in Gang setzen zu können.With the procedure according to the invention and the device intended for its implementation, the difficult and time-consuming threading and shaping work of the individual strips on the shaped tubes in the confined space conditions is eliminated, i.e. the packaging material web to be cut into strips can be inserted into the device as in the production of normal tubular bag packs be introduced and this then continues in the normal way as before after the start cycle to be controlled in particular. The whole thing is bought with a small loss of packaging material, but this is out of all proportion to the difficulties that have so far been encountered in order to be able to start such devices at all.
Durch den ungeschnittenen Vorlauf der Packstoffbahn werden die durch den Folgeschnitt entstehenden Streifen insgesamt zusammengehalten, hängen nicht mehr frei nach unten und erstrecken sich genau parallel zu den Formrohren. Wesentliche Voraussetzung dafür ist, daß die Schneidmesser und ihr Gegenelement relativ zueinander auseinandergestellt werden können und solange auseinandergehalten werden, bis die Vorlauflänge mindestens bis zu den Formrohrenden durchgezogen ist. Erst dann wird die Schneideinrichtung durch Zusammenfahren zur Wirkung gebracht und die Packstoffbahn solange weitergefördert, bis sich die Schnittanfänge an oder etwas hinter den Formrohrenden befinden. Da nunmehr im Bereich der Packstoffanformelemente Packstoffstreifen vorliegen, können die Anformelemente unter Anformung der Streifen an die Formrohre angelegt werden, in welcher Stellung diese, wie bisher auch, bleiben, bis die jeweilige Packstoffbahnvorratsrolle aufgebraucht ist.Due to the uncut advance of the packaging material web, the strips created as a result of the subsequent cut are held together, no longer hang freely downwards and extend exactly parallel to the molded tubes. An essential prerequisite for this is that the cutting knives and their counter element can be separated from each other and kept apart until the lead length is at least as far as the ends of the shaped tube. Only then is the cutting device brought into effect by moving it together and the packaging material web is conveyed on until the beginning of the cut is at or somewhat behind the ends of the shaped tube. Since packaging material strips are now present in the area of the packaging material molding elements, the molding elements can be applied to the molding tubes by molding the strips, in which position these, as before, also, remain until the respective packaging material web supply roll is used up.
Voneinander trennbare Elemente von Schneideinrichtungen sind zwar nach der DE-Zeitschrift "Papierverarbeiter" 10-69 Seiten 8-28 bekannt, dies hat aber rein konstruktive Gründe, um die Schneideinrichtungen bequem im Bedarfsfall öffnen zu können, nicht aber aus dem vorliegenden Grund, um einen Packstoffbahnvorlauf erfindungsgemäß ungeschnitten passieren lassen und um danach zwecks Streifenschnitt zusammengefahren werden zu können.Elements of cutting devices that can be separated from one another are known according to DE magazine "paper processor" 10-69 pages 8-28, but this has purely constructive reasons for being able to open the cutting devices conveniently when needed, but not for the present reason, for one According to the invention, let the packaging material web pass uncut and then be able to be moved together for the purpose of strip cutting.
Das erfindungsgemäße Verfahren und die zugehörige Vorrichtung sind zwar, wie einleitend erwähnt, insbesondere für Schlauchbeutelpackungen geringer Breite und solche bestimmt, die mit einem inneren Siegelstreifen im Bereich ihrer Packstoffstoßränder längsversiegelt werden. Es steht aber nichts entgegen, Verfahren und Vorrichtung auch dann anzuwenden, wenn die herzustellenden Schlauchbeutel größere Breiten, wie vorerwähnt, haben sollten und auch dann, wenn die Längsnahtversiegelung in anderer Weise als mit einem mit eingeführten inneren Siegelstreifen erfolgt, also bspw. an sich überlappenden Streifenrändern.As mentioned in the introduction, the method according to the invention and the associated device are intended in particular for tubular bag packs of small width and those which are longitudinally sealed with an inner sealing strip in the region of their packaging material edges. However, there is nothing to prevent the method and device from being used even if the tubular bags to be produced should have larger widths, as mentioned above, and also if the longitudinal seam sealing is carried out in a manner other than with an inserted inner sealing strip, that is to say overlapping, for example Striped edges.
Das erfindungsgemäße Verfahren, die Vorrichtung zu seiner Durchführung und vorteilhafte Ausgestaltungen der Vorrichtung werden nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The method according to the invention, the device for carrying it out and advantageous configurations of the device are explained in more detail below with the aid of exemplary embodiments.
Es zeigt schematisch
- Fig. 1, 2
- die Vorrichtung in Seiten- und Vorderansicht;
- Fig. 3
- perspektivisch den Herstellungsvorgang nach Anlage der Packstoffanformelemente;
- Fig. 4A, B
- die Schneideinrichtung in Forder- und Seitenansicht;
- Fig. 5A, B, C
- perspektivisch Ausführungsformen der Packstoffanformelemente und
- Fig. 6A, B
- im Schnitt besondere Ausführungsformen der Packstoffanformelemente.
- 1, 2
- the device in side and front view;
- Fig. 3
- in perspective the manufacturing process after the packaging material molding elements have been created;
- 4A, B
- the cutting device in front and side view;
- 5A, B, C
- perspective embodiments of the packaging material molding elements and
- 6A, B
- on average, special embodiments of the packaging material molding elements.
Die Vorrichtung zur Durchführung des Verfahrens besteht wie bisher aus an einem Vorrichtungsgestell 1 angeordneten Packstoffbahnführungselementen 2, einer Streifenschneideinrichtung 3 mit hinter dieser in Reihe nebeneinander jeweils mit Streifenbreite beabstandet angeordneten, im Umfang der Streifenbreite entsprechenden Formrohren 4, denen beidseitig an die zylindrischen Formrohre 4 anlegbare Packstoffbahnanformelemente 6 zugeordnet sind, wobei hinter diesen in Förderrichtung Längssiegelwerkzeuge 7 und hinter den Formrohrenden 4' eine Querschneideinrichtung 8 angeordnet sind, welcher ein auf und ab bewegbares Quersiegelwerkzeug 9 nachgeschaltet ist. Dargestellt ist in Fig. 1 eine Vorrichtung, bei der zwecks Längsversiegelung gestoßener Streifenränder SR ein Siegelstreifen SS von der anderen Seite und von einem Führungselement 2' geführt an das jeweilige Formrohr 4 herangeführt wird.The device for carrying out the method consists, as hitherto, of packaging material
Für eine solche Vorrichtung ist nun wesentlich, daß die am Streifenschnitt beteiligten Elemente der Schneideinrichtung 3 relativ zueinander in bezug auf die Durchlaufebene E der Packstoffbahn P auseinanderstellbar ausgebildet sind und daß von den Packstoffanformelementen 6 die die Streifen S direkt und mittig erfassenden Elemente 6' eine dem Formrohrdurchmesser entsprechende, halbzylindrische Anformfläche F und die die Streifenränder SR erfassenden Elemente 6'' entsprechende viertelzylindrische Anformfläche F' aufweisen und diese beiden Elemente 6'' mit Stellgliedern SG derart gekoppelt sind, daß deren Anlage an die Streifenränder SR und das Formrohr 4 bei bereits angelegter halbzylindrischer Anformfläche F erfolgt.For such a device it is now essential that the elements of the
Um für den sich an die Anfahrphase der Maschine anschließenden Dauerbetrieb günstige Einlaufverhältnisse des Packstoffes in die dabei geschlossenen Anformelemente 6 zu erreichen, sind vorteilhaft, wie in Fig. 6 verdeutlicht, die Anformflächen F, F' packstoffzulaufseitig jeweils mit einer kegelstumpfförmigen Erweiterung 13 versehen.In order to achieve favorable inlet conditions of the packaging material into the closed
Um einwandfrei geschnittene Streifenränder SF zu erhalten, sind unter Verweis auf Fig. 4A die am Streifenschnitt beteiligten Elemente aus paarig einander zugeordneten Rundschneidmessern 10 gebildet. Gemäß Fig. 4B sitzen alle Rundschneidmesser 10 gemeinsam auf Wellen 11, die beidseitig an scherenartig zueinander verstellbaren Gestängen 12 gelagert sind. Die Stellmittel und Antriebe für die Betätigung der einen oder anderen Welle 11 sind nicht besonders dargestellt, da es hierfür verschiedene konstruktiven Möglichkeiten gibt, wobei darauf hingewiesen sei, daß die scherenartige Zuordnung der Gestänge 12 zwar vorteilhaft aber nicht zwingend ist.In order to obtain perfectly cut strip edges SF, the elements involved in the strip cut are formed from paired
Bezüglich der Ausbildung der Packstoffanformelemente wird auf die Fig. 5A, B Bezug genommen. Die die Streifen direkt und mittig erfassenden Elemente 6', die sich unter Verweis auf Fig. 1 zwischen Maschinengestell 1 und Formrohren 4 befinden, sind einfache Formstücke mit einer halbzylindrischen Anlagefläche F. Gestrichelt angedeutet ist, wie der betreffende Streifen von diesem Element 6' am Formrohr 4 verformt bzw. an dieses angelegt wird. Diese Elemente 6' sitzen alle gemeinsam an einem Träger T, der senkrecht gegen die Durchlaufebene der Packstoffbahn bzw. der Packstoffstreifen hin und her verstellbar ist. Die Gegenelemente zur Anformung der Streifenränder SR sind als Ausführungsbeispiel in Fig. 5B verdeutlicht. Hiernach sind die viertelzylindrischen Anformflächen F' als beidseitig in Höhe der Formrohrachse 4'' schwenkbar gelagerte Schalen ausgebildet. Auch diese Schalen sitzen an hin und her beweglichen Trägern, die für alle Schalen bspw. rechenartig zusammengefaßt ausgebildet sein können. Diese Schalen werden mit gestrichelt dargestellter Öffnungsstellung an die Streifenränder SR (siehe Fig. 5A) herangefahren und mittels eines Stellgestänges SG geschlossen, wobei die Streifenränder SR an die Formrohre 4 angelegt werden. Die viertelzylindrischen Anlageflächen F' können aber auch Teile von blockartigen Elementen im Sinne der Fig. 5A sein, die aber dann mit Rücksicht auf die beengten Platzverhältnisse neben den Formrohren 4 einer anderen Verstellmechanik bedürfen. Grundsätzlich ist dabei wichtig, daß beim Heranfahren der Elemente 6'' an die Streifenränder SR diese von den Flächen F' erfaßt und nach innen gebogen werden können.With regard to the design of the packaging material molding elements, reference is made to FIGS. 5A, B. The elements 6 'directly and centrally capturing the strips, which are located with reference to FIG. 1 between the
Für den Fall, daß die Streifenränder SR nicht gestoßen, sondern sich überlappend längs versiegelt werden sollen, werden sie, um bei Ausführungsbeispiel nach Fig. 5B zu bleiben, im Sinne der Fig. 5C ausgebildet, d.h., auf der Seite des unterzulegenden Streifenrandes SR ist die Schale in ihrer Bogenlänge etwas kürzer und die andere für den überlappenden Streifenrand SR etwas länger gehalten, wobei die Schließung bzw. Anlegung dieser längeren Schale etwas nacheilen muß.In the event that the strip edges SR are not butted but are to be sealed longitudinally overlapping, they are designed to remain in the embodiment according to FIG. 5B in the sense of FIG. 5C, that is, on the side of the strip edge to be placed SR the shell is somewhat shorter in its arc length and the other is held somewhat longer for the overlapping strip edge SR, the closure or application of this longer shell having to lag somewhat.
Unter Verweis auf Fig. 3 sind zur Vorbereitung der Maschine für den Dauerlauf die Schneidmesser 10 der Streifenschneideinrichtung 3 geöffnet, ebenso die Anformelemente 6', 6'' und auch das Quersiegelwerkzeug 9 mit seinem Siegelbacken, so daß die Packstoffbahn ungeschnitten und über die Führung 2 bis etwas unter das Quersiegelwerkzeug 9 durchgezogen werden kann. Mit der Schließung des Quersiegelwerkzeuges 9 und mit dessen Abzugsbewegung ist die Schließung und Ingangsetzung der Schneideinrichtung 3 gekoppelt, und die nunmehr in Streifen S geschnittene Packstoffbahn wird nachgezogen, bis sich die Schnittanfänge unter den Formrohrenden 4' befinden. Nunmehr werden die Packstoffanformelemente 6, und zwar zunächst die Elemente 6', an die Formrohre 4 unter Verformung der Streifen gemäß Fig. 5A angelegt und dann die Elemente 6'' von der anderen Seite. Die inzwischen hochgefahrenen Quersiegelwerzeuge 9 werden geschlossen, und die Elemente 6', 6'' bleiben geschlossen, ebenso wie die Schneideinrichtung. Damit ist die Vorrichtung für den Dauerbetrieb bis zum Verbrauch der Packstoffvorratsrolle bereit, und es wird auch, ebenfalls entsprechend programmgesteuert, das Längssiegelwerkzeug 7 in Gang gesetzt.With reference to FIG. 3, the
Unmittelbar unter dem Quersiegelwerkzeug 9 und ggf. mit diesem kombiniert, ist eine Querschneideinrichtung 8 angeordnet, die den gebildeten Packstoffrohrstrang unmittelbar unter der gebildeten Quersiegelnaht abschneidet, d.h., in diesem Fall ergeben sich an einem Ende querversiegelte und an anderen Enden offene Packstoffrohre für die Weiterverarbeitung, d.h. Füllung und Schließung.Immediately below the
Falls es Füllgut und Innenquerschnitt der Formrohre 4 zulassen, kann natürlich auch gefüllt und beidseitig querversiegelt werden, wobei jedoch die Querschneideinrichtung anders plaziert werden muß, was keiner näheren Erläuterung bedarf.If the filling material and the internal cross-section of the molded
Claims (6)
dadurch gekennzeichnet,
daß die Längsschnitte zur Streifenaufteilung der Packstoffbahn (P) erst nach einem ungeschnittenen Vorlauf (V) der Packstoffbahn (P) begonnen, die Schnittanfänge (A) in der Packstoffbahn (P) mit dieser bis mindestens zu den Enden der Formrohre geführt, danach zuerst die Streifen (S) mittig und dann die Streifenränder (SR) an die Formrohre angelegt und längsversiegelt werden und der ungeschnittene Vorlauf (V) der Packstoffbahn (P) nach einer ersten Querversiegelung abgeschnitten wird.Method for preparing the parallel production of in particular tubular bag packs with a small width from a packaging material web (P) cut into several strips of the same width, the strips (S) being molded continuously and clocked onto a corresponding number of shaped tubes and the edges (SR) of each strip (S) are longitudinally sealed, after which the packaging tubes formed are sealed behind the ends of the shaped tubes, pulled off by the desired bag length (L) and cut off from the following packaging tube (PR),
characterized,
that the longitudinal cuts for the strip division of the packaging material web (P) only started after an uncut lead (V) of the packaging material web (P), the beginning of cuts (A) in the packaging material web (P) led to at least the ends of the molded tubes, then first the Strips (S) in the middle and then the strip edges (SR) are placed on the shaped tubes and sealed longitudinally and the uncut lead (V) of the packaging material web (P) is cut off after a first transverse sealing.
dadurch gekennzeichnet,
daß die am Streifenschnitt beteiligten Elemente der Schneideinrichtung (3) relativ zueinander in bezug auf die Durchlaufebene (E) der Packstoffbahn (P) auseinanderstellbar ausgebildet sind und daß von den Packstoffanformelementen (6) die die Streifen (S) direkt und mittig erfassenden Elemente (6') eine dem Formrohrdurchmesser entsprechende, halbzylindrische Anformfläche (F) und die die Streifenränder (SR) erfassenden Elemente (6'') entsprechende, viertelzylindrische Anformflächen (F') aufweisen und diese beiden Elemente (6'') mit Stellgliedern (SG) derart gekoppelt sind, daß deren Anlage an die Streifenränder (SR) und das Formrohr (4) bei bereits angelegter halbzylindrischer Anformfläche (F) erfolgt.Apparatus for carrying out the method according to claim 1, consisting of packing material web guide elements (2) arranged on a device frame (1), a strip cutting device (3) with molded tubes (4) arranged behind one another in series and spaced apart by strip width, corresponding to the circumference of the strip width, to which the packing material web-shaped elements (6) that can be placed on the cylindrical shaped tubes (4) are assigned, with longitudinal sealing tools (7) arranged behind them in the conveying direction and behind the shaped tube ends (4 ') a transverse cutting device (8) which has a transverse sealing tool that can be moved up and down ( 9) is connected downstream,
characterized,
that the elements of the cutting device involved in the strip cut (3) relative to each other in relation to the passage plane (E) of the packaging material web (P) are designed to be separable and that of the packaging material forming elements (6) the elements (6 ') which capture the strips (S) directly and centrally have a semi-cylindrical shape corresponding to the shaped tube diameter The shaping surface (F) and the elements (6 '') which capture the strip edges (SR) have corresponding, quarter-cylindrical shaping surfaces (F ') and these two elements (6'') are coupled to actuators (SG) in such a way that their contact with the Strip edges (SR) and the molded tube (4) with the semi-cylindrical molding surface (F) already applied.
dadurch gekennzeichnet,
daß die Anformflächen (F, F') packstoffzulaufseitig jeweils mit einer kegelstumpfförmigen Erweiterung (13) versehen sind.Device according to claim 2,
characterized,
that the molded surfaces (F, F ') are each provided with a truncated cone-shaped extension (13) on the packaging material inlet side.
dadurch gekennzeichnet,
daß die am Streifenschnitt beteiligten Elemente aus paarig einander zugeordneten Rundschneidmessern (10) gebildet sind.Device according to claim 2 or 3,
characterized,
that the elements involved in the strip cut are formed from paired circular cutting knives (10).
dadurch gekennzeichnet,
daß alle Rundschneidmesser (10) gemeinsam auf Wellen (11) und diese beidseitig an scherenartig zueinander verstellbaren Gestängen (12) gelagert sind.Device according to one of claims 2 to 4,
characterized,
that all circular cutting knives (10) are mounted together on shafts (11) and these are mounted on scissors-like linkages (12) on both sides.
dadurch gekennzeichnet,
daß die viertelzylindrischen Anformflächen (F') als beidseitig in Höhe der Formrohrachse (4') schwenkbar gelagerte Schalen ausgebildet sind.Device according to claim 2 or 3,
characterized,
that the quarter-cylindrical shaped surfaces (F ') are designed as shells pivotably mounted on both sides at the height of the shaped tube axis (4').
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4446936 | 1994-12-28 | ||
| DE4446936A DE4446936A1 (en) | 1994-12-28 | 1994-12-28 | Method and device for preparing the parallel production of tubular bag packs |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0719634A2 true EP0719634A2 (en) | 1996-07-03 |
| EP0719634A3 EP0719634A3 (en) | 1996-12-27 |
| EP0719634B1 EP0719634B1 (en) | 1999-04-14 |
Family
ID=6537340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95119023A Expired - Lifetime EP0719634B1 (en) | 1994-12-28 | 1995-12-02 | Process and apparatus for preparing parallel production of tubular bags |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5634324A (en) |
| EP (1) | EP0719634B1 (en) |
| DE (2) | DE4446936A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2771334A1 (en) * | 1997-11-21 | 1999-05-28 | Georges Sireix | Production of container tubes |
| DE10014791C2 (en) * | 2000-03-24 | 2002-03-07 | Hassia Verpackung Ag | Process for processing a packaging material web and packaging machine for its implementation |
| US6832462B2 (en) | 2002-05-30 | 2004-12-21 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Process for making tube blanks |
| CN109367893A (en) * | 2018-08-31 | 2019-02-22 | 安徽正远包装科技有限公司 | A kind of potato powder item column packaging etc. cuts out structure |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3585638B2 (en) * | 1996-04-03 | 2004-11-04 | 三光機械株式会社 | Multiple automatic packing machine |
| DE29717304U1 (en) * | 1997-09-27 | 1997-11-06 | Hassia Verpackungsmaschinen Gmbh, 63691 Ranstadt | Device for preparing the parallel production of in particular tubular bag packs with a small width |
| JP3338377B2 (en) | 1998-06-26 | 2002-10-28 | 三光機械株式会社 | Feeding direction change mechanism for packaging film for multiple automatic packaging machines |
| US6199346B1 (en) * | 1998-12-01 | 2001-03-13 | Kraft Foods, Inc. | Apparatus for continuous manufacture of multi-colored and/or multi-flavored food product |
| DE29903463U1 (en) * | 1999-02-26 | 2000-06-21 | Hassia Verpackungsmaschinen Gmbh, 63691 Ranstadt | Packaging machine for the production of sachet packs, in particular tubular bags |
| DE19910485C2 (en) * | 1999-03-10 | 2002-10-02 | Hassia Verpackung Ag | Aseptic tubular packaging machine |
| DE10150334A1 (en) * | 2001-02-03 | 2003-04-24 | Hassia Verpackung Ag | Process and packaging machine for converting a wide, multi-layer, aseptically processed packaging material web into several, equally wide, further processable single webs |
| DE10104858C1 (en) * | 2001-10-15 | 2002-02-07 | Hassia Verpackung Ag | Packaging material web splitting method for packaging machine uses laser for providing perforations along packaging web for separation into individual webs after sterilization |
| CA2519196A1 (en) * | 2003-03-27 | 2004-10-14 | Swf Companies, Inc. | High-speed continuous action form-fill-seal apparatus |
| EP2607243B1 (en) * | 2011-12-22 | 2014-06-04 | Boato Pack S.r.L. a Socio Unico | Filling machine |
| ITGE20120046A1 (en) * | 2012-05-03 | 2013-11-04 | Gianluigi Rossi | AUTOMATIC PACKAGING MACHINE WITH LONGITUDINAL PACKAGING FILM DEVICE. |
| US11338538B2 (en) * | 2016-08-17 | 2022-05-24 | Les Emballages Trium Inc. | Process for manufacturing bags for packaging items, and bag produced therefrom |
| WO2018158066A1 (en) * | 2017-02-28 | 2018-09-07 | Gea Food Solutions Weert B.V. | Improved inspection of a vertical flow-wrapper |
| CN114341006A (en) * | 2019-07-02 | 2022-04-12 | Aaa包装用品私人有限公司 | Apparatus, system and method for slitting film material |
| CN112172237A (en) * | 2020-10-27 | 2021-01-05 | 宛群 | Method for manufacturing environment-friendly paper-plastic packaging bag |
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- 1995-12-02 EP EP95119023A patent/EP0719634B1/en not_active Expired - Lifetime
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| DE10014791C2 (en) * | 2000-03-24 | 2002-03-07 | Hassia Verpackung Ag | Process for processing a packaging material web and packaging machine for its implementation |
| US6832462B2 (en) | 2002-05-30 | 2004-12-21 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Process for making tube blanks |
| CN109367893A (en) * | 2018-08-31 | 2019-02-22 | 安徽正远包装科技有限公司 | A kind of potato powder item column packaging etc. cuts out structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| US5634324A (en) | 1997-06-03 |
| EP0719634B1 (en) | 1999-04-14 |
| EP0719634A3 (en) | 1996-12-27 |
| DE4446936A1 (en) | 1996-07-04 |
| DE59505648D1 (en) | 1999-05-20 |
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