EP0321682B1 - Machine and method for manufacturing folding containers, especially folding boxes - Google Patents

Machine and method for manufacturing folding containers, especially folding boxes Download PDF

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Publication number
EP0321682B1
EP0321682B1 EP88118096A EP88118096A EP0321682B1 EP 0321682 B1 EP0321682 B1 EP 0321682B1 EP 88118096 A EP88118096 A EP 88118096A EP 88118096 A EP88118096 A EP 88118096A EP 0321682 B1 EP0321682 B1 EP 0321682B1
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EP
European Patent Office
Prior art keywords
ejector
containers
station
machine
marking
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
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EP88118096A
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German (de)
French (fr)
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EP0321682A2 (en
EP0321682A3 (en
Inventor
Wolfgang Bensberg
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Jagenberg AG
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Jagenberg AG
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Priority to AT88118096T priority Critical patent/ATE75998T1/en
Publication of EP0321682A2 publication Critical patent/EP0321682A2/en
Publication of EP0321682A3 publication Critical patent/EP0321682A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • B65H29/6618—Advancing articles in overlapping streams forming an overlapping stream upon transfer from a first conveyor to a second conveyor advancing at slower speed
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • 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
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/626—Arrangements for permitting the glue to set
    • 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
    • B31B50/74—Auxiliary operations
    • B31B50/92—Delivering
    • B31B50/94—Delivering singly or in succession
    • B31B50/96—Delivering singly or in succession in an overlapping arrangement

Definitions

  • the invention relates to a machine for producing folded containers, in particular folding boxes, with an application unit for adhesive, a folding station and a pressing station with pressing elements for connecting the adhesive seams under pressure, and a method for producing folded containers with a machine according to the invention.
  • folding box gluing machines which have a code reader to detect defective blanks and an ejector between the folding station and the pressing station, it is already known to use a manually operated ejector button to glue the glued and unpressed boxes between the glue unit and the ejector after a machine stop with the ejector to remove.
  • the invention has for its object to provide a generic machine in which, after a machine stop, all containers that have already been provided with an active adhesive layer but are still unpressed can be automatically marked or discharged.
  • Another object is to provide a method for producing folded containers with a machine according to the invention.
  • Fig. 1 shows a folder gluer according to the invention in side view.
  • the folder-gluer has an insert 1, a primary crusher 2, a glue unit 3, a folding station 4, a transfer station 5 and a press station 6 in the direction of flow.
  • the primary crusher 2 and the folding station 4 the blanks are successively transported by means of roller-supported, rotating conveyor belts successively to the transfer station 5, where they are shingled by means of upper and lower belts and fed to the pressing station 6.
  • the press elements of the press station 6 each consist of a wide upper and lower endless press belt, which are each deflected by driven rollers and supported by press rollers.
  • a code reader 7 is arranged in the area of the insert 1 and an ejector 8 is arranged in the area of the transfer station 4, with which defective blanks are recognized and ejected.
  • the computing and control device 10 is also connected to the ejector 8 so that it can operate it.
  • the marking device 9 consists of a lever which can be actuated by a magnet and which moves a box laterally in the scale flow if it receives a signal from the control device 10.
  • a lock which discharges a corresponding number of cuts to a signal from the control device 10 from the scale flow. It is also possible to separate the boxes behind the pressing station and to arrange a single ejector in this area.
  • this embodiment there is a device behind the single ejector for the renewed generation of a continuous stream of shingles, e.g. Double belts with reduced conveyor speed.
  • This device is also controlled by the control device 10 in such a way that it is stopped when no boxes arrive due to the ejection by the one or more ejectors. In this way, a gap-free stream of shingles is generated at the exit of the machine, which can be easily processed - e.g. packed - can be.
  • the folding box gluing machine works as follows: The blanks are inserted between the conveyor belts by the insert 1, and then pre-broken along their crease lines as they pass through the primary crusher. After 3 glue has been applied by the gluing unit along the adhesive seam, they are folded by the folding members of the folding station - folding belts supported by rollers in the present exemplary embodiment.
  • the code reader 7 ejects cutouts identified as faulty by the ejector 8. This consists of a turntable onto which the blanks to be ejected are pressed by magnetically controlled switching rollers and thereby removed from the box flow.
  • the boxes are transferred to the slower-running press belts of the press station 6, whereby they overlap in the form of scales due to the differential speed.
  • the degree of scaling of the box flow can be regulated by means of an adjusting device.
  • the shingles then pass through the pressing station 6, where the shells are glued under pressure. After leaving the Pressing station 6, the boxes are fed from a conveyor device, not shown, to a packing station or further processing.
  • the computing and control device 10 calculates both the number of boxes located between the gluing unit 3 and the ejector 8 and between the ejector 8 and the beginning of the pressing elements of the pressing station 6 from the machine data (cut length, Conveyor length, conveyor speed and degree of scaling).
  • the machine When the machine is restarted, it actuates the ejector 8 immediately, which ejects the determined number of glued blanks up to the blank that was in the glue unit 3 when the machine stopped.
  • the control takes place independently of the speed via path signals for a constant conveying distance, which are counted by pulse counters on rotating conveying elements, for example conveying rollers.
  • a certain number of path signals therefore corresponds to a certain conveying route.
  • the computing and control device 10 calculates the number of travel signals required for the transport path of the first unpressed box to the marking device 9.
  • the computing and control device 10 calculates the number of unscaled boxes in the transfer station 5 behind the ejector 8 into the associated scale flow length and adds this to the amount of the shingled stream in front of the pressing station. The number of associated path signals is calculated from this combined scale stream length.
  • the control device 10 actuates the marking device 9; as soon as the path signals calculated for the transport from the beginning of the pressing station 6 to the marking device 9 were counted.
  • the marking device 9 then moves the first still uncompressed box laterally in the stream of shingles and makes it so recognizable.
  • the marking device 9 is actuated a second time when the number of path signals has been counted, which has been calculated for the composite scale stream length. This marks the last blank glued on before the machine stops.
  • the scale flow between the two marked boxes is then removed manually.
  • Automatic removal by means of a lock or an individual ejector, which are controlled by the computing and control device 10, is also possible.
  • the computing and control device 10 calculates the corresponding scale stream length from the number of cuts in the area of the folding station 3 and the transfer station 5 and adds this to the scale stream length in front of the first pressing element.
  • the glued blanks from the folding station 4 and the transfer station 5 are also marked or ejected behind the pressing station 6.
  • control via the transport times is also possible.
  • the transport times are calculated by the computing and control device 10 as a function of the transport speed of the press belts and the length of the conveyor line from the start of the press belts to the marking or ejection device 9.
  • Folding carton gluing machines represent the preferred field of application of the invention.
  • the solution according to the invention can also be used in devices for the production of PE-coated packings in which glued seams e.g. activated by heat and then welded under pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

In known machines for manufacturing folding containers, in particular folding boxes, with an application mechanism (3) for adhesive, a folding station (4) and a pressing station (6) with pressing elements for connecting the pasted seams under pressure, the problem arises that, in the event of machine stoppage, on the containers which are situated between the application mechanism (3) and the beginning of the pressing elements of the pressing station (6), the glue which has already been applied dries during the standstill period. <??>According to the invention, to remove the containers which have already been provided with adhesive and are still unpressed, there is arranged after the pressing station (6) a marking or ejecting device (9). In the event of a machine stoppage, a calculating and control device (10) calculates computationally the number of containers located between application mechanism (3) and the beginning of the pressing elements of the pressing station (6) and, after restarting of the machine, controls the marking or ejecting device (9). <IMAGE>

Description

Die Erfindung betrifft eine Maschine zur Herstellung von gefalteten Behältern, insbesondere von Faltschachteln, mit einem Auftragwerk für Klebstoff, einer Faltstation und einer Preßstation mit Preßelementen zum Verbinden der Klebenähte unter Druck und ein Verfahren zur Herstellung von gefalteten Behältern mit einer erfindungsgemäßen Maschine.The invention relates to a machine for producing folded containers, in particular folding boxes, with an application unit for adhesive, a folding station and a pressing station with pressing elements for connecting the adhesive seams under pressure, and a method for producing folded containers with a machine according to the invention.

Derartige gattungsgemäße Maschinen sind bekannt und zum Beispiel in der Informationsschrift "Beschreibung der Faltschachtel-Klebemaschinen DIANA 40-1/70/1/90-1" (INFOTEC I/157, 11/86) der Anmelderin beschrieben.Such generic machines are known and are described, for example, in the information document "Description of the folder-gluer DIANA 40-1 / 70/1 / 90-1" (INFOTEC I / 157, 11/86) of the applicant.

Bei einem Maschinenstopp von gattungsgemäßen Faltschachtel-Klebemaschinen tritt das Problem auf, daß bei den Schachteln, die sich zwischen dem Auftragwerk für den Klebstoff (Leimwerk) und dem Anfang der Preßelemente der Preßstation befinden, der bereits aufgetragene Leim während der Stillstandszeit antrocknet. Überschreitet die Stillstandszeit einen gewissen Wert, so führt dies zu unvollständig verbundenen Klebenähten an den Schachteln, so daß diese nicht ordnungsgemäß zu verwenden sind.With a machine stop of generic folding box gluing machines, the problem arises that the glue already applied dries during the downtime in the boxes that are located between the application unit for the adhesive (glue unit) and the beginning of the pressing elements of the pressing station. If the downtime exceeds a certain value, this leads to incompletely bonded seams on the boxes, so that they cannot be used properly.

Bei Faltschachtel-Klebemaschinen, die zum Erkennen fehlerhafter Zuschnitte einen Codeleser und zwischen der Faltstation und der Preßstation einen Auswerfer aufweisen, ist es bereits bekannt, mittels einer manuell betätigten Auswerfertaste die angeleimten und ungepreßten Schachteln zwischen dem Leimwerk und dem Auswerfer nach einem Maschinenstopp mit dem Auswerfer zu entfernen.In folding box gluing machines, which have a code reader to detect defective blanks and an ejector between the folding station and the pressing station, it is already known to use a manually operated ejector button to glue the glued and unpressed boxes between the glue unit and the ejector after a machine stop with the ejector to remove.

Nachteilig an dieser Lösung ist, daß das Auswerfen der Schachteln manuell gesteuert werden muß und daß die zwischen dem Auswerfer und den Preßelementen der Preßstation befindlichen Schachteln nicht entfernt werden.The disadvantage of this solution is that the ejection of the boxes must be controlled manually and that the boxes located between the ejector and the pressing elements of the pressing station are not removed.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Maschine zu schaffen, bei der nach einem Maschinenstopp alle bereits mit einer aktiven Klebeschicht versehenen, aber noch ungepreßten Behälter automatisch markiert oder ausgeschleust werden können.The invention has for its object to provide a generic machine in which, after a machine stop, all containers that have already been provided with an active adhesive layer but are still unpressed can be automatically marked or discharged.

Eine weitere Aufgabe ist die Bereitstellung eines Verfahrens zur Herstellung von gefalteten Behältern mit einer erfindungsgemäßen Maschine.Another object is to provide a method for producing folded containers with a machine according to the invention.

Die erste Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst. Die Patentansprüche 7 und 8 lösen die zweite Aufgabe.The first object is achieved with the features of patent claim 1. Claims 7 and 8 solve the second problem.

Die Unteransprüche 2-6 enthalten bevorzugte Ausführungsformen der Erfindung.Subclaims 2-6 contain preferred embodiments of the invention.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to an embodiment shown in simplified form.

Fig. 1
zeigt eine erfindungsgemäße Faltschachtel-Klebemaschine in Seitenansicht.Fig. 1
shows a folder gluer according to the invention in side view.

Die Faltschachtel-Klebemaschine nach der Erfindung weist in Durchlaufrichtung einen Einleger 1, einen Vorbrecher 2, ein Leimwerk 3, eine Faltstation 4, eine Überleitstation 5 und eine Preßstation 6 auf. Durch den Vorbrecher 2 und die Faltstation 4 werden die Zuschnitte mittels von Rollen unterstützten, umlaufenden Förderriemen vereinzelt mit geringem Abstand aufeinanderfolgend bis zur Überleitstation 5 transportiert, wo sie mittels oberer und unterer Riemen geschuppt der Preßstation 6 zugeführt werden. Die Preßelemente der Preßstation 6 bestehen aus jeweils einem breiten oberen und unteren endlosen Preßgurt, die jeweils von angetriebenen Walzen umgelenkt und von Preßrollen abgestützt werden.The folder-gluer according to the invention has an insert 1, a primary crusher 2, a glue unit 3, a folding station 4, a transfer station 5 and a press station 6 in the direction of flow. By means of the primary crusher 2 and the folding station 4, the blanks are successively transported by means of roller-supported, rotating conveyor belts successively to the transfer station 5, where they are shingled by means of upper and lower belts and fed to the pressing station 6. The press elements of the press station 6 each consist of a wide upper and lower endless press belt, which are each deflected by driven rollers and supported by press rollers.

Im Bereich des Einlegers 1 ist ein Codeleser 7 und im Bereich des Überleitstation 4 ein Auswerfer 8 angeordnet, mit denen fehlerhafte Zuschnitte erkannt und ausgeworfen werden.A code reader 7 is arranged in the area of the insert 1 and an ejector 8 is arranged in the area of the transfer station 4, with which defective blanks are recognized and ejected.

Im Anschluß an die Preßstation 6 ist eine Markiereinrichtung 9, angeordnet, die von einer Rechen- und Steuereinrichtung 10 gesteuert wird. Die Rechen- und Steuereinrichtung 10 ist ebenfalls an den Auswerfer 8 angeschlossen, damit sie diesen betätigen kann. Im vorliegenden Ausführungsbeispiel besteht die Markiereinrichtung 9 aus einem über einen Magneten betätigbaren Hebel, der eine Schachtel seitlich im Schuppenstrom verschiebt, falls er ein Signal von der Steuereinrichtung 10 erhält. Anstelle der Markiereinrichtung 9 ist auch der Einsatz einer Schleuse möglich, die eine entsprechende Anzahl von Zuschnitten auf ein Signal der Steuereinrichtung 10 aus dem Schuppenstrom ausschleust. Ebenso ist es möglich, die Schachteln hinter der Preßstation wieder zu vereinzeln und in diesem Bereich einen Einzelauswerfer anzuordnen.A marking device 9, which is controlled by a computing and control device 10, is arranged after the pressing station 6. The computing and control device 10 is also connected to the ejector 8 so that it can operate it. In the present exemplary embodiment, the marking device 9 consists of a lever which can be actuated by a magnet and which moves a box laterally in the scale flow if it receives a signal from the control device 10. Instead of the marking device 9, it is also possible to use a lock which discharges a corresponding number of cuts to a signal from the control device 10 from the scale flow. It is also possible to separate the boxes behind the pressing station and to arrange a single ejector in this area.

Bei dieser Ausführungsform befindet sich hinter dem Einzelauswerfer eine Einrichtung zur erneuten Erzeugung eines kontinuierlichen Schuppenstroms, z.B. Doppelbänder mit verminderter Fördergeschwindigkeit. Diese Einrichtung wird ebenfalls von der Steuereinrichtung 10 derart gesteuert, daß sie angehalten wird, wenn aufgrund des Auswerfens durch den oder die beiden Auswerfer keine Schachteln ankommen. So wird am Ausgang der Maschine ein zwischenraumfreier Schuppenstrom erzeugt, der problemlos weiterverarbeitet - z.B. verpackt - werden kann.In this embodiment there is a device behind the single ejector for the renewed generation of a continuous stream of shingles, e.g. Double belts with reduced conveyor speed. This device is also controlled by the control device 10 in such a way that it is stopped when no boxes arrive due to the ejection by the one or more ejectors. In this way, a gap-free stream of shingles is generated at the exit of the machine, which can be easily processed - e.g. packed - can be.

Die erfindungsgemäße Faltschachtel-Klebemaschine arbeitet wie folgt:
Die Zuschnitte werden vom Einleger 1 zwischen Förderriemen eingelegt, anschließend beim Durchlauf durch den Vorbrecher entlang ihrer Rillinien vorgebrochen. Nachdem entlang der Klebenaht von dem Leimwerk 3 Leim aufgetragen wurde, werden sie von den Faltorganen der Faltstation - im vorliegenden Ausführungsbeispiel von Rollen unterstützte Faltriemen - gefaltet. In der Überleitstation 5 werden vom Codeleser 7 als fehlerhaft erkannte Zuschnitte vom Auswerfer 8 ausgeworfen. Dieser besteht aus einem Drehteller, auf den die auszuwerfenden Zuschnitte durch magnetgesteuerte Schaltrollen gedrückt und dadurch aus dem Schachtelstrom entfernt werden.The folding box gluing machine according to the invention works as follows:
The blanks are inserted between the conveyor belts by the insert 1, and then pre-broken along their crease lines as they pass through the primary crusher. After 3 glue has been applied by the gluing unit along the adhesive seam, they are folded by the folding members of the folding station - folding belts supported by rollers in the present exemplary embodiment. In the transfer station 5, the code reader 7 ejects cutouts identified as faulty by the ejector 8. This consists of a turntable onto which the blanks to be ejected are pressed by magnetically controlled switching rollers and thereby removed from the box flow.

Von der Überleitstation 5 werden die Schachteln den langsamer laufenden Preßgurten der Preßstation 6 übergeben, wobei sie sich durch die Differenzgeschwindigkeit in Schuppenform übereinanderlegen. Der Schuppungsgrad des Schachtelstromes ist mittels einer Einstelleinrichtung regelbar. Anschließend durchlaufen die Schachteln geschuppt die Preßstation 6, wo die Schachteln unter Druck verklebt werden. Nach Verlassen der Preßstation 6 werden die Schachteln von einer nicht dargestellten Fördereinrichtung einer Packstation oder der weiteren Verarbeitung zugeführt.From the transfer station 5, the boxes are transferred to the slower-running press belts of the press station 6, whereby they overlap in the form of scales due to the differential speed. The degree of scaling of the box flow can be regulated by means of an adjusting device. The shingles then pass through the pressing station 6, where the shells are glued under pressure. After leaving the Pressing station 6, the boxes are fed from a conveyor device, not shown, to a packing station or further processing.

Bei einem Maschinenstopp, der länger als eine einstellbare Zeit dauert, berechnet die Rechen- und Steuereinrichtung 10 sowohl die Anzahl der zwischen Leimwerk 3 und Auswerfer 8, als auch zwischen Auswerfer 8 und Anfang der Preßelemente der Preßstation 6 befindlichen Schachteln aus den Maschinendaten (Zuschnittslänge, Förderstreckenlänge, Fördergeschwindigkeit und Schuppungsgrad). Sie betätigt beim Neuanlauf der Maschine sofort den Auswerfer 8, der die ermittelte Anzahl von angeleimten Zuschnitten bis zu dem Zuschnitt, der sich beim Maschinenstopp im Leimwerk 3 befand, auswirft.In the event of a machine stop that lasts longer than an adjustable time, the computing and control device 10 calculates both the number of boxes located between the gluing unit 3 and the ejector 8 and between the ejector 8 and the beginning of the pressing elements of the pressing station 6 from the machine data (cut length, Conveyor length, conveyor speed and degree of scaling). When the machine is restarted, it actuates the ejector 8 immediately, which ejects the determined number of glued blanks up to the blank that was in the glue unit 3 when the machine stopped.

Beim vorliegenden Ausführungsbeispiel erfolgt die Steuerung geschwindigkeitsunabhängig über Wegsignale für eine konstante Förderstrecke, die von Impulszählern an sich drehenden Förderelementen, z.B. Förderrollen, gezählt werden. Einer bestimmten Förderstrecke entspricht daher eine bestimmte Anzahl von Wegsignalen. Zum Markieren der Schachteln, die sich bei Maschinenstopp zwischen dem Auswerfer 8 und dem Anfang der Preßelemente der Preßstation 6 befinden, berechnet die Rechen- und Steuereinrichtung 10 die für den Transportweg der ersten noch ungepreßten Schachtel bis zur Markiereinrichtung 9 erforderliche Anzahl von Wegsignalen. Zusätzlich berechnet die Rechen- und Steuereinrichtung 10 die Anzahl der ungeschuppten Schachteln in der Überleitstation 5 hinter dem Auswerfer 8 in die zugehörige Schuppenstromlänge um und addiert diese zu der Menge des geschuppten Stroms vor der Preßstation. Von dieser zusammengefaßten Schuppenstromlänge wird die Anzahl der zugehörigen Wegsignale berechnet.In the present exemplary embodiment, the control takes place independently of the speed via path signals for a constant conveying distance, which are counted by pulse counters on rotating conveying elements, for example conveying rollers. A certain number of path signals therefore corresponds to a certain conveying route. In order to mark the boxes which are located between the ejector 8 and the start of the pressing elements of the pressing station 6 when the machine stops, the computing and control device 10 calculates the number of travel signals required for the transport path of the first unpressed box to the marking device 9. In addition, the computing and control device 10 calculates the number of unscaled boxes in the transfer station 5 behind the ejector 8 into the associated scale flow length and adds this to the amount of the shingled stream in front of the pressing station. The number of associated path signals is calculated from this combined scale stream length.

Nach dem Neuanlauf der Maschine betätigt die Steuereinrichtung 10 die Markiereinrichtung 9; sobald die für den Transport von Beginn der Preßstation 6 bis zur Markiereinrichtung 9 berechneten Wegsignale gezählt wurden. Die Markiereinrichtung 9 verschiebt dann die erste noch ungepreßte Schachtel seitlich im Schuppenstrom und macht sie so kenntlich. Ein zweites Mal wird die Markiereinrichtung 9 betätigt, wenn die Anzahl der Wegsignale gezählt wurde, die für die zusammengesetzte Schuppenstromlänge errechnet wurde. Damit wird der letzte vor dem Maschinenstopp angeleimte Zuschnitt markiert.After restarting the machine, the control device 10 actuates the marking device 9; as soon as the path signals calculated for the transport from the beginning of the pressing station 6 to the marking device 9 were counted. The marking device 9 then moves the first still uncompressed box laterally in the stream of shingles and makes it so recognizable. The marking device 9 is actuated a second time when the number of path signals has been counted, which has been calculated for the composite scale stream length. This marks the last blank glued on before the machine stops.

Im vorliegenden Ausführungsbeispiel wird der Schuppenstrom zwischen den beiden markierten Schachteln anschließend manuell entfernt. Ebenso ist ein automatisches Entfernen mittels einer Schleuse oder eines Einzelauswerfers, die von der Rechen- und Steuereinrichtung 10 gesteuert werden, möglich.In the present exemplary embodiment, the scale flow between the two marked boxes is then removed manually. Automatic removal by means of a lock or an individual ejector, which are controlled by the computing and control device 10, is also possible.

Falls im Bereich der Überleitstation 5 kein Auswerfer angeordnet ist, berechnet die Rechen- und Steuereinrichtung 10 aus der Anzahl der Zuschnitte im Bereich der Faltstation 3 und der Überleitstation 5 die entsprechende Schuppenstromlänge und addiert diese zu der Schuppenstromlänge vor dem ersten Preßelement. Bei dieser Ausführungsform werden die angeleimten Zuschnitte aus der Faltstation 4 und der Überleitstation 5 ebenfalls hinter der Preßstation 6 markiert oder ausgeworfen.If no ejector is arranged in the area of the transfer station 5, the computing and control device 10 calculates the corresponding scale stream length from the number of cuts in the area of the folding station 3 and the transfer station 5 and adds this to the scale stream length in front of the first pressing element. In this embodiment, the glued blanks from the folding station 4 and the transfer station 5 are also marked or ejected behind the pressing station 6.

Anstelle der Steuerung über Wegsignale ist ebenfalls eine Steuerung über die Transportzeiten möglich. In diesem Fall werden die Transportzeiten von der Rechen- und Steuereinrichtung 10 in Abhängkeit von der Transportgeschwindigkeit der Preßgurte und der Länge der Förderstrecke vom Anfang der Preßgurte bis zur Markier-oder Auswerfeinrichtung 9 berechnet.Instead of control via path signals, control via the transport times is also possible. In this case, the transport times are calculated by the computing and control device 10 as a function of the transport speed of the press belts and the length of the conveyor line from the start of the press belts to the marking or ejection device 9.

Faltschachtel-Klebemaschinen stellen das bevorzugte Anwendungsgebiet der Erfindung dar. Die erfindungsgemäße Lösung ist jedoch ebenfalls bei Vorrichtungen zur Herstellung von PE-beschichteten Packungen anwendbar, bei denen Klebenähte z.B. durch Hitze aktiviert und anschließend unter Druck verschweißt werden.Folding carton gluing machines represent the preferred field of application of the invention. However, the solution according to the invention can also be used in devices for the production of PE-coated packings in which glued seams e.g. activated by heat and then welded under pressure.

Claims (8)

  1. Machine for producing folded containers, especially folding boxes, with an applicator unit (3) for adhesive, with a folding station (4) and with a press station (6) with pressing elements for the bonding of the adhesive seams under pressure, characterised by a marking or ejector device (9) arranged downstream of the press station (6) and by a computing and control device (10) which, in the event of a machine stop, determines computationally the number of folded containers located between the applicator unit (3) and the start of the pressing elements of the press station (6) and which controls the marking or ejector device (9) after a restart of the machine.
  2. Machine according to Claim 1, characterised by a transfer station (5) with means for generating an imbricated stream of folded containers between the folding station (4) and the press station (6).
  3. Machine according to Claim 2, characterised by an ejector (8) controlled by the computing and control device (10) and located in the region of the transfer station (5).
  4. Machine according to Claim 2 or 3, characterised by, as an ejector device (9), a sluice for the containers conveyed in an imbricated manner.
  5. Machine according to Claim 2 or 3, characterised by a device for the individual separation of the imbricated containers downstream of the press station (6) and by a single-item ejector downstream of the separating device.
  6. Machine according to Claim 5, characterised by a device which is arranged downstream of the single-item ejector, is intended for the renewed generation of an imbricated stream, and is controlled by the computing and control device (10).
  7. Process for producing folded containers by means of a machine according to one of Claims 1, 2, 4 to 6, characterised in that, in the event of a machine stop, the computing and control device (10) determines the number of glue-coated and still unpressed containers between the applicator unit (3) and the start of the pressing elements of the press station (6), computes from this number the length of the associated imbricated stream and, after a delay time or deferral distance corresponding to the transport time or transport distance from the start of the press station (6) to the marking or ejector device (9), actuates the marking or ejector device (9) for a time interval or transport distance corresponding to the transport time or transport distance of the calculated imbricated stream length.
  8. Process for producing folded containers by means of a machine according to one of Claims 3 to 6, characterised in that, in the event of a machine stop, the computing and control device (10) determines both the number of containers located between the applicator unit (3) and ejector (8) and the number of containers located between the ejector (8) and the start of the pressing elements of the press station (6), in respect of the latter number additionally calculates the associated imbricated stream length and, in the event of the restarting of the machine, immediately actuates the ejector (8) for the ejection of the first number of containers, and, after a delay time or deferral distance corresponding to the transport time or transport distance from the start of the press station (6) to the marking or ejector device (9), actuates the marking or ejector device (9) for a time interval or transport distance corresponding to the transport time or transport distance of the imbricated stream length calculated from the second number.
EP88118096A 1987-12-23 1988-10-31 Machine and method for manufacturing folding containers, especially folding boxes Expired - Lifetime EP0321682B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88118096T ATE75998T1 (en) 1987-12-23 1988-10-31 MACHINE AND PROCESS FOR THE MANUFACTURE OF FOLDED CONTAINERS, ESPECIALLY FOLDING BOXES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743728 DE3743728A1 (en) 1987-12-23 1987-12-23 MACHINE AND METHOD FOR PRODUCING FOLDED CONTAINERS, ESPECIALLY FOLDING BOXES
DE3743728 1987-12-23

Publications (3)

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EP0321682A2 EP0321682A2 (en) 1989-06-28
EP0321682A3 EP0321682A3 (en) 1990-01-03
EP0321682B1 true EP0321682B1 (en) 1992-05-13

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EP88118096A Expired - Lifetime EP0321682B1 (en) 1987-12-23 1988-10-31 Machine and method for manufacturing folding containers, especially folding boxes

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US (1) US4988330A (en)
EP (1) EP0321682B1 (en)
JP (1) JPH01204732A (en)
AT (1) ATE75998T1 (en)
BR (1) BR8806727A (en)
DE (2) DE3743728A1 (en)
ES (1) ES2032517T3 (en)

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Also Published As

Publication number Publication date
ATE75998T1 (en) 1992-05-15
EP0321682A2 (en) 1989-06-28
DE3743728A1 (en) 1989-07-06
DE3743728C2 (en) 1990-05-10
ES2032517T3 (en) 1993-02-16
US4988330A (en) 1991-01-29
EP0321682A3 (en) 1990-01-03
JPH01204732A (en) 1989-08-17
DE3871107D1 (en) 1992-06-17
BR8806727A (en) 1989-08-29

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