EP0342384B1 - Method and apparatus for inspecting carton packages - Google Patents

Method and apparatus for inspecting carton packages Download PDF

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Publication number
EP0342384B1
EP0342384B1 EP89107242A EP89107242A EP0342384B1 EP 0342384 B1 EP0342384 B1 EP 0342384B1 EP 89107242 A EP89107242 A EP 89107242A EP 89107242 A EP89107242 A EP 89107242A EP 0342384 B1 EP0342384 B1 EP 0342384B1
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EP
European Patent Office
Prior art keywords
carton
folding
tabs
packs
station
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
EP89107242A
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German (de)
French (fr)
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EP0342384A1 (en
Inventor
Heinz Focke
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Focke and Co GmbH and Co KG
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Focke and Co GmbH and Co KG
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Publication of EP0342384A1 publication Critical patent/EP0342384A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00Automatic control, checking, warning, or safety devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • B07C5/3404Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/20Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by folding-down preformed flaps

Definitions

  • the invention relates to a method for checking cardboard packs in relation to the correct formation of cardboard walls formed from folding tabs glued together, pressure being exerted on the cardboard walls immediately after completion by folding the folding tabs in such a way that they are not sufficiently fixed Folding flaps are moved out of the plane of the cardboard wall. Furthermore, the invention relates to a device for performing the method.
  • the cardboard packs mentioned here are primarily large-volume packs made of corrugated cardboard or the like. They are mainly used to hold smaller packs. For example, small containers of cigarette packs - so-called cigarette packs with, for example, 10 or 20 cigarette packs - packed in such cardboard packs.
  • Blanks for the production of cardboard packs are usually first folded in such a way that a rectangular or square "tube" is formed which surrounds the pack contents and is open on two opposite sides. These open sides are then closed by folding tabs which partially overlap one another, namely two opposite and complementary inner tabs and two mutually opposite and complementary outer tabs.
  • the folding flaps create floor and ceiling walls.
  • the folding tabs are connected to each other by gluing.
  • glue surfaces are applied to the inner lobes and / or to the inside of the outer lobes.
  • the carton pack can be closed by an adhesive strip applied on the outside.
  • the invention is concerned with the testing of the closure of such or similar carton packs.
  • a device for checking the correct closure of folding cartons is shown in US-A-3 939 063.
  • Folding flaps are checked in the area of the front and back as well as on the long sides parallel to the direction of movement.
  • rollers are provided which are mounted on a swivel arm and enter the movement path of the boxes under their own weight. When a box is conveyed, the impact on the rolls results in an impact load in the area of the front face of the pack or, above all, in the area of an upper transverse edge.
  • the impact of the rollers is intended to ensure that forces arise within the subsequent folding flap or the cardboard wall receiving them, which do not move sufficiently glued folding flaps into the open position.
  • the method according to the invention is characterized in that the cardboard wall to be tested is acted upon by pressure elements which act on opposite cardboard edges delimiting the cardboard wall to be tested in the opposite direction.
  • the pressure treatment according to the invention of the folding tabs which are glued or connected to one another ensures that defective carton packs are also identified in which the connection of the folding tabs to the outside is apparently correct.
  • the pressure load in the plane of the walls formed by the folding tabs ensures that inadequate (adhesive) connections lead to the opening of the folding tabs and thus to the incorrect packs being identified.
  • the device according to the invention for checking carton packs is characterized in that the pressure elements provided can be pressed in opposite directions on opposite carton edges delimiting the carton wall to be tested.
  • any incorrect packs are identified in the area of a test station and sorted out in terms of conveyor technology.
  • light barriers extend in a plane parallel to the walls formed from folding tabs, in particular in a vertical plane. In this way, folding tabs that protrude to the side or adhesive strips - if the adhesive strips are incorrectly attached - are recognized.
  • the adhesive strip is expediently applied by a corresponding application element following the test station, but in the conveying direction in front of the control station. In the area of the control station, possibly incorrectly applied or insufficiently adhesive adhesive strips are identified.
  • the embodiment shown in the drawings is concerned with the production of cardboard packs 10 for holding, for example, cigarette sticks.
  • the Carton packs 10 are transported on a feed conveyor 11 (in cycles).
  • the feed conveyor 11 here consists of two spaced-apart support rods 12, 13 on which the carton pack 10 rests and is slid on.
  • the transport is carried out by drivers 14 of a (chain) conveyor acting on the rear.
  • the carton pack 10 consists of a blank, e.g. made of corrugated cardboard that surrounds the contents of the pack.
  • the carton pack 10 is initially open on both sides - upright side surfaces parallel to the conveying direction.
  • the blank has folding flaps which can be folded onto one another, namely inner flaps 15, 16 and outer flaps 17, 18.
  • the aforementioned folding flaps 15. 18 are folded over one another to form, for example, bottom wall 19 and top wall 20.
  • the inner tabs 15, 16 proceed from mutually opposite vertical edges 21, 22, while the outer tabs 17, 18 merge into upper walls of the cardboard pack 10 via upper and lower horizontal edges 23, 24.
  • the outer tabs 17, 18 in the present example of a carton pack 10 are dimensioned such that they completely cover the bottom wall 19 or the top wall 20 and abut one another in the region of a parting line 25. This is arranged in the middle.
  • the carton packs 10 are filled outside the aggregates shown here and partially folded in the area of the bottom wall 19 and the top wall 20, namely with respect to the inner tabs 15, 16. These are already folded into the end position when the carton Pack 10 reaches the area of a gluing station 26.
  • the outer tabs 17, 18 are pre-folded here so that they are in an inclined position (Fig. 5). With this relative position of the outer tabs 17, 18, the carton pack 10 can glue members 27, 28 arranged on both sides of the feed conveyor 11 are moved past such that appropriately designed nozzle heads 29 extend adjacent to the inside of the oblique outer tabs 17, 18 (FIG. 5). In this position, glue strips 30, 31 (hot-melt) can be sprayed onto the inner tabs 15, 16 in two successive spray cycles.
  • a folding station 32 follows the gluing station 26 in the conveying direction. Two measures are carried out in this in the area of the folding tabs. Firstly, the outer tabs 17, 18 are pressed against the inner tabs 15, 16, that is to say folded in the end position. On the other hand, the outer tabs 17, 18 are corrected or aligned with respect to the relative position after this folding step in such a way that the outer tabs 17, 18 abut each other in the region of the parting line 25.
  • folding elements are arranged laterally next to the feed conveyor, which can be moved in the transverse direction against the carton pack 10.
  • these are roller folders 33, 34 on both sides of the feed path 11.
  • Each roller folder 33, 34 consists of a U-shaped support frame 35 with horizontally directed flanges 36. Inside the support frame 35, namely between the upper and lower Flanges 36, a larger number of freely rotatable pressure rollers 37 is arranged with an upright axis of rotation.
  • the roller folders 33, 34 formed in this way are moved from a retracted position (FIG. 5) to a folded position (FIG. 6, left), bearing against the outer tabs 17, 18 pressed against the inner tabs 15, 16.
  • the roller folder 33, 34 can remain in this folding or pressing position when the carton pack 10 is conveyed out of the folding station 32 after the measures provided have been carried out.
  • the pressure rollers 42 can be moved against the load of a compression spring 45 or dodge.
  • the pressure rollers 42 of a counter-holder 43 are arranged on an elongated carrier 46 which is pivotably mounted on a crossbar 47 which extends above the movement path of the carton packs 10.
  • the carrier 46 is provided with a shoulder 48 which is attached to the crossbar 47 with a joint 49.
  • the compression springs 45 are supported with the upper end also from the appropriately dimensioned crossbar 47.
  • the fully folded cardboard packs 10 reach the area of a tape station 50 by further transport on the feed conveyor 11.
  • an adhesive strip 51 is applied to the side surfaces during the transport of the cardboard pack 10, that is to say to the bottom wall 19 and / or top wall 20.
  • the adhesive strip 51 is attached so that the parting line 25 between the two outer tabs 17, 18 is covered.
  • the adhesive strip 51 is applied by means of tape units 52, 53 of conventional design arranged on both sides of the feed conveyor track.
  • a tape 55 provided with an adhesive is pulled off a bobbin 54, transferred to the cardboard pack 10, pressed against it and cut to a suitable length.
  • the cardboard pack 10 completed by attaching the adhesive strip 51 arrives at a control station 56 on the feed conveyor 11.
  • the cardboard pack 10 is checked for correct formation in the region of the bottom wall 19 and the top wall 20.
  • the cardboard pack 10 is raised, namely by (three) pressure strips 57, 58, 59, which grip the latter in the region of the lower horizontal edges 23, 24 and in the middle of the cardboard pack 10.
  • the pressure bars 57, 58, 59 are connected via upright webs 60 to a transverse support beam 61 which can be moved up and down by lifting rods 62.
  • the carton pack 10 is located during this phase (in the control station 56) on a cross conveyor 63, in the area of which the control station 56 is formed following the feed conveyor 11.
  • the cross conveyor 63 is designed as a roller conveyor with two conveyor sections 64 and 65. Correctly designed carton packs 10 leave the control station 56 via the conveyor section 64, that is to the left in FIG. 1. Incorrect packs are separated out via the conveyor section 65 to the right.
  • drive rollers 66 of the two conveying sections 64, 65 can be rotated in both directions by a common drive.
  • the drive rollers 66 each equipped with gear wheels 67, are connected to one another by a common chain drive 68.
  • each of the drive rollers 66 is provided with a sprocket 69 for a common drive chain 70 which includes all drive rollers 66.
  • a common drive 71 which has a reversible drive motor 72, is installed on the machine frame below the plane of the drive rollers 66.
  • the drive motor 71 connected to one of the drive rollers 66 causes the drive rollers to rotate in one direction or the other, depending on whether an intact carton pack 10 is to the left on the conveying section 64 or a defective carton pack 10 is to the right on the conveying section 65 into a processing station 73 is to be promoted.
  • the control station 56 is formed in the area of the cross conveyor 63 following the feed conveyor 11. To carry out the test, the carton packs 10 are lifted in the control station 56 by the pressure bars 57, 58, 59 from the drive rollers 66 of the cross conveyor 63 and brought into contact with elastic pressure members arranged above the carton pack 10. These are also arranged in the region of the (upper) horizontal edges 23.
  • the relatively narrow pressure bars 57..59 are each arranged between adjacent drive rollers 66 and can be lowered below the level of the cross conveyor 63.
  • the lifting rod 62 can be actuated by a lifting gear 74, which essentially consists of a crank mechanism 75.
  • the middle pressure bar 58 serves as an additional support member for the carton pack 10.
  • the counter-pressure element which is mounted in a stationary manner above the carton packs 10, here consists of two lateral pressure beams 76, 77. These are supported on a part of the machine frame by means of support rods with compression springs 79, namely on a support plate 80 Pressure bar 76, 77 raised while increasing the contact pressure. As a result, pressure is exerted on the sideward walls (bottom wall 19, top wall 20) formed from the folding tabs, which leads to the opening of improperly bonded folding tabs.
  • Cardboard packs 10 which are formed incorrectly are identified in the control station 56 by optoelectric sensors.
  • photo sensors namely a transmitter 81
  • the vertical light barrier formed between them is formed closely, namely with a small distance, next to the sideways-facing walls (bottom wall 19, top wall 20) of the carton pack 10. Any protruding parts of these walls, in particular folding tabs and / or adhesive strips 51, are found. They lead to a separation of the relevant carton pack 10 into the processing station 73 by appropriate driving of the drive rollers 66.
  • the defective carton pack 10 rests on freely rotatable, but not driven, support rollers 83.
  • the defect in the carton pack 10 is eliminated manually here.
  • the corrected carton pack 10 is then returned in the conveying flow, namely in the event of a gap in the supply of correct carton packs 10 with a corresponding drive direction of the drive rollers 66.
  • the exact time of introduction of the repaired carton pack 10 into the conveying flow is determined by a stop 84 which holds the carton pack 10 resting on the drive rollers 66 in the raised position until the path for the carton pack 10 is clear is. the stop 84 is lowered by a pivot lever 85 so that the carton pack 10 can then be removed automatically.

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

Description

Die Erfindung betrifft ein Verfahren zum Prüfen von Karton-Packungen in bezug auf korrekte Ausbildung von aus miteinander verklebten Faltlappen gebildeten Karton-Wandungen, wobei unmittelbar nach Fertigstellung der Karton-Wandungen durch Falten der Faltlappen auf diese Druck ausgeübt wird, derart, daß nicht ausreichend fixierte Faltlappen aus der Ebene der Karton-Wandung herausbewegt werden. Weiterhin betrifft die Erfindung eine Vorrichtung zur Durchführung des Verfahrens. Bei den hier angesprochenen Karton-Packungen handelt es sich in erster Linie um großvolumige Packungen aus Wellpappe oder dgl. Sie dienen überwiegend zur Aufnahme kleinerer Packungen. Beispielsweise werden Kleingebinde von Zigaretten-Packungen - sogenannte Zigaretten-Stangen mit zum Beispiel 10 oder 20 Zigaretten-Packungen - in derartigen Karton-Packungen verpackt.The invention relates to a method for checking cardboard packs in relation to the correct formation of cardboard walls formed from folding tabs glued together, pressure being exerted on the cardboard walls immediately after completion by folding the folding tabs in such a way that they are not sufficiently fixed Folding flaps are moved out of the plane of the cardboard wall. Furthermore, the invention relates to a device for performing the method. The cardboard packs mentioned here are primarily large-volume packs made of corrugated cardboard or the like. They are mainly used to hold smaller packs. For example, small containers of cigarette packs - so-called cigarette packs with, for example, 10 or 20 cigarette packs - packed in such cardboard packs.

Zuschnitte zur Herstellung von Karton-Packungen werden üblicherweise zunächst so gefaltet, daß ein den Packungsinhalt umgebender, rechteckiger oder quadratischer "Schlauch" entsteht, der an zwei einander gegenüberliegenden Seiten offen ist. Diese offenen Seiten werden anschliessend durch einander teilweise überdeckende Faltlappen verschlossen, nämlich zwei gegenüberliegende und sich ergänzende Innenlappen und zwei einander ebenfalls gegenüberliegende und sich ergänzende Außenlappen. Durch die Faltlappen entstehen so Bodenwandung und Deckenwandung.Blanks for the production of cardboard packs are usually first folded in such a way that a rectangular or square "tube" is formed which surrounds the pack contents and is open on two opposite sides. These open sides are then closed by folding tabs which partially overlap one another, namely two opposite and complementary inner tabs and two mutually opposite and complementary outer tabs. The folding flaps create floor and ceiling walls.

Um die Karton-Packung haltbar zu verschließen, werden die Faltlappen durch Verklebung miteinander verbunden. Zu diesem Zweck werden auf die Innenlappen und/oder auf die Innenseite der Außenlappen Leimflächen aufgetragen. Zusätzlich oder alternativ kann die Karton-Packung durch einen außen aufgebrachten Klebestreifen verschlossen sein.In order to close the carton pack in a durable manner, the folding tabs are connected to each other by gluing. For this purpose, glue surfaces are applied to the inner lobes and / or to the inside of the outer lobes. Additionally or alternatively, the carton pack can be closed by an adhesive strip applied on the outside.

Die Erfindung befaßt sich mit der Prüfung des Verschlusses derartiger oder ähnlicher Karton-Packungen.The invention is concerned with the testing of the closure of such or similar carton packs.

Eine Vorrichtung zur Überprüfung des korrekten Verschlusses von Faltkartons ist in der US-A-3 939 063 gezeigt. Es werden Faltlappen im Bereich von Vorderseite und Rückseite sowie an den Längsseiten parallel zur Bewegungsrichtung überprüft. Zur Ausübung eines Drucks auf die Kartons sind Rollen vorgesehen, die an einem Schwenkarm gelagert sind und unter Eigengewicht in die Bewegungsbahn der Kartons eintreten. Wenn ein Karton zugefördert wird, ergibt sich durch das Auftreffen desselben auf die Rollen eine stoßartige Belastung im Bereich der vorderen Stirnseite der Packung bzw. vor allem im Bereich einer oberen Querkante. Durch den Aufprall der Rollen soll erreicht werden, daß innerhalb des anschließenden Faltlappens bzw. der diesen aufnehmenden Kartonwand Kräfte entstehen, die nicht ausreichend verklebte Faltlappen in die Öffnungsposition bewegen. Die kurzzeitige, impulsartige Belastung der Kartons durch die Rollen wird als nachteilig empfunden, insbesondere bei Transport der Kartons mit größeren Fördergeschwindigkeiten. Darüber hinaus ist fraglich, ob durch einen kurzzeitigen Stoß unzulängliche Leimverbindungen gelöst werden können. Schließlich können bei dieser Art der Prüfung nur die jeweils in Transportrichtung vornliegenden Faltlappen einer oberen Packungswandung überprüft werden.A device for checking the correct closure of folding cartons is shown in US-A-3 939 063. Folding flaps are checked in the area of the front and back as well as on the long sides parallel to the direction of movement. In order to exert pressure on the boxes, rollers are provided which are mounted on a swivel arm and enter the movement path of the boxes under their own weight. When a box is conveyed, the impact on the rolls results in an impact load in the area of the front face of the pack or, above all, in the area of an upper transverse edge. The impact of the rollers is intended to ensure that forces arise within the subsequent folding flap or the cardboard wall receiving them, which do not move sufficiently glued folding flaps into the open position. The short-term, impulsive loading of the cartons by the rollers is perceived as disadvantageous, especially when the cartons are transported at higher conveying speeds. In addition, it is questionable whether inadequate glue connections can be loosened by a brief impact. Finally, with this type of test, only the folding tabs of an upper packaging wall, which are in the transport direction, can be checked.

Demgegenüber ist es Aufgabe der vorliegenden Erfindung, etwaige Fehler im Bereich des Verschlusses, nämlich im Bereich der aus den Faltlappen gebildeten Wandungen, zuverlässiger zu ermitteln.In contrast, it is an object of the present invention to more reliably determine any errors in the area of the closure, namely in the area of the walls formed from the folding tabs.

Zur Lösung dieser Aufgabe ist das erfindungsgemäße Verfahren dadurch gekennzeichnet, daß die zu prüfende Karton-Wandung durch Druckorgane beaufschlagt wird, die an einander gegenüberliegenden, die zu prüfende Karton-Wandung begrenzenden Kartonkanten in entgegengesetzter Richtung wirksam werden.To achieve this object, the method according to the invention is characterized in that the cardboard wall to be tested is acted upon by pressure elements which act on opposite cardboard edges delimiting the cardboard wall to be tested in the opposite direction.

Durch die erfindungsgemäße Druckbehandlung der miteinander verklebten bzw. miteinander verbundenen Faltlappen wird sichergestellt, daß auch solche fehlerhaften Karton-Packungen identifiziert werden, bei denen die Verbindung der Faltlappen nach außen scheinbar korrekt ist. Durch die Druckbelastung in der Ebene der durch die Faltlappen gebildeten Wandungen wird sichergestellt, daß unzulängliche (Klebe-)Verbindungen zu einem Aufspringen der Faltlappen und damit zu einem Feststellen der Fehl-Packungen führt.The pressure treatment according to the invention of the folding tabs which are glued or connected to one another ensures that defective carton packs are also identified in which the connection of the folding tabs to the outside is apparently correct. The pressure load in the plane of the walls formed by the folding tabs ensures that inadequate (adhesive) connections lead to the opening of the folding tabs and thus to the incorrect packs being identified.

Durch die bei fehlerhaften Karton-Packungen zur Seite (in bezug auf die Förderrichtung der Karton-Packungen) vorstehenden Faltlappen können diese erfindungsgemäß durch Sensoren, insbesondere durch optische Sensoren (Lichtschranken), selbsttätig erkannt und ausgesondert werden.Due to the folding flaps protruding to the side in the case of defective carton packs (with respect to the conveying direction of the carton packs), these can be automatically recognized and separated according to the invention by sensors, in particular by optical sensors (light barriers).

Es ist vorgesehen, daß die Fehl-Packungen aus dem Förderfluß der Karton-Packungen ausgeschleust werden in den Bereich einer Korrekturstation. Hier werden die Mängel an der Karton-Packung manuell beseitigt. Die korrekte Packung wird sodann in den Packungsfluß wieder eingeführt.It is envisaged that the incorrect packs are discharged from the conveying flow of the cardboard packs into the area of a correction station. The defects in the carton pack are manually eliminated here. The correct package is then reintroduced into the package flow.

Die erfindungsgemäße Vorrichtung zum Prüfen von Karton-Packungen ist dadurch gekennzeichnet, daß die vorgesehenen Druckorgane an einander gegenüberliegenden, die zu prüfende Karton-Wandung begrenzenden Kartonkanten in entgegengesetzter Richtung andrückbar sind.The device according to the invention for checking carton packs is characterized in that the pressure elements provided can be pressed in opposite directions on opposite carton edges delimiting the carton wall to be tested.

Etwaige Fehl-Packungen werden im Bereich einer Prüfstation erkannt und fördertechnisch ausgesondert. Zu diesem Zweck erstrecken sich Lichtschranken in einer Ebene parallel zu den aus Faltlappen gebildeten Wandungen, insbesondere in vertikaler Ebene. Etwa zur Seite vorstehende Faltlappen oder auch Klebestreifen - bei unkorrekt angebrachtem Klebestreifen - werden so erkannt.Any incorrect packs are identified in the area of a test station and sorted out in terms of conveyor technology. For this purpose, light barriers extend in a plane parallel to the walls formed from folding tabs, in particular in a vertical plane. In this way, folding tabs that protrude to the side or adhesive strips - if the adhesive strips are incorrectly attached - are recognized.

Der Klebestreifen wird zweckmäßigerweise durch ein entsprechendes Auftragsorgan im Anschluß an die Prüfstation aufgebracht, jedoch in Förderrichtung vor der Kontrollstation. Im Bereich der Kontrollstation werden auch eventuell fehlerhaft angebrachte bzw. nicht ausreichend haftende Klebestreifen identifiziert.The adhesive strip is expediently applied by a corresponding application element following the test station, but in the conveying direction in front of the control station. In the area of the control station, possibly incorrectly applied or insufficiently adhesive adhesive strips are identified.

Weitere Merkmale der Erfindung betreffen die Ausbildung von Organen im Bereich der Prüfstation und im Bereich der Kontrollstation sowie Maßnahmen zum Aussondern und Wiedereinführen von Fehl-Packungen bzw. korrigierten Karton-Packungen.Further features of the invention relate to the formation of organs in the area of the test station and in the area of the control station as well as measures for separating out and reinserting incorrect packs or corrected cardboard packs.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigt:

Fig. 1
eine Vorrichtung zum Prüfen von Karton-Packungen im schematischen Grundriß,
Fig. 2
einen Ausschnitt aus Fig. 1 in vergrößertem Maßstab,
Fig. 3
eine Seitenansicht zu Fig. 1,
Fig. 4
eine Vorderansicht zu Fig. 1,
Fig. 5
eine Einzelheit, nämlich eine Queransicht der Vorrichtung im Bereich einer Beleimungs- und Faltstation,
Fig. 6
eine Darstellung analog zu Fig. 4 im Bereich einer Prüfstation für die Karton-Packungen,
Fig. 7
eine Darstellung analog zu Fig. 4 und Fig. 5 im Bereich einer Kontrollstation für die geprüften Karton-Packungen.
An embodiment of the invention is explained below with reference to the drawings. It shows:
Fig. 1
a device for checking carton packs in a schematic plan view,
Fig. 2
2 shows a detail from FIG. 1 on an enlarged scale,
Fig. 3
2 shows a side view of FIG. 1,
Fig. 4
2 shows a front view of FIG. 1,
Fig. 5
a detail, namely a transverse view of the device in the area of a gluing and folding station,
Fig. 6
4 in the area of a test station for the carton packs,
Fig. 7
a representation analogous to FIG. 4 and FIG. 5 in the area of a control station for the checked carton packs.

Das in den Zeichnungen dargestellte Ausführungsbeispiel befaßt sich mit der Herstellung von Karton-Packungen 10 für die Aufnahme von beispielweise Zigaretten-Stangen. Die Karton-Packungen 10 werden auf einer Zuförderbahn 11 (taktweise) transportiert. Die Zuförderbahn 11 besteht hier aus zwei im Abstand voneinder angeordneten Tragstangen 12, 13, auf denen die Karton-Packung 10 aufliegt und gleitend weiterbewegt wird. Der Transport erfolgt durch rückseitig angreifende Mitnehmer 14 eines (Ketten-)Förderers.The embodiment shown in the drawings is concerned with the production of cardboard packs 10 for holding, for example, cigarette sticks. The Carton packs 10 are transported on a feed conveyor 11 (in cycles). The feed conveyor 11 here consists of two spaced-apart support rods 12, 13 on which the carton pack 10 rests and is slid on. The transport is carried out by drivers 14 of a (chain) conveyor acting on the rear.

Die Karton-Packung 10 besteht aus einem Zuschnitt, z.B. aus Wellkarton, der den Packungsinhalt umgibt. An beiden Seiten - aufrechte Seitenflächen parallel zur Förderrichtung - ist die Karton-Packung 10 zunächst offen. Der Zuschnitt weist aufeinanderfaltbare Faltlappen auf, nämlich Innenlappen 15, 16 und Außenlappen 17, 18. Die vorgenannten Faltlappen 15..18 werden zur Bildung von beispielweise Boden-Wandung 19 und Deck-Wandung 20 übereinander gefaltet. Dabei gehen die Innenlappen 15, 16 von einander gegenüberliegenden Vertikalkanten 21, 22 aus, während die Außenlappen 17, 18 über obere und untere Horizontalkanten 23, 24 in anschließende Wandungen der Karton-Packung 10 übergehen.The carton pack 10 consists of a blank, e.g. made of corrugated cardboard that surrounds the contents of the pack. The carton pack 10 is initially open on both sides - upright side surfaces parallel to the conveying direction. The blank has folding flaps which can be folded onto one another, namely inner flaps 15, 16 and outer flaps 17, 18. The aforementioned folding flaps 15. 18 are folded over one another to form, for example, bottom wall 19 and top wall 20. The inner tabs 15, 16 proceed from mutually opposite vertical edges 21, 22, while the outer tabs 17, 18 merge into upper walls of the cardboard pack 10 via upper and lower horizontal edges 23, 24.

Die Außenlappen 17, 18 sind bei dem vorliegenden Beispiel einer Karton-Packung 10 so bemessen, daß sie zusammen die Boden-Wandung 19 bzw die Deck-Wandung 20 vollständig überdecken und im Bereich einer Trennfuge 25 aneinanderstoßen. Diese ist hier mittig angeordnet.The outer tabs 17, 18 in the present example of a carton pack 10 are dimensioned such that they completely cover the bottom wall 19 or the top wall 20 and abut one another in the region of a parting line 25. This is arranged in the middle.

Die Karton-Packungen 10 werden außerhalb der hier gezeigten Aggregate gefüllt und im Bereich von Boden-Wandung 19 sowie Deck-Wandung 20 teilweise gefaltet, nämlich in bezug auf die Innenlappen 15, 16. Diese sind bereits in die Endstellung gefaltet, wenn die Karton-Packung 10 in den Bereich einer Beleimungsstation 26 gelangt. Die Außenlappen 17, 18 sind hier vorgefaltet, so daß sie sich in einer Schrägstellung befinden (Fig. 5). Bei dieser Relativstellung der Außenlappen 17, 18 kann die Karton-Packung 10 an beidseitig zur Zuförderbahn 11 angeordneten Leimorganen 27, 28 vorbeibewegt werden, derart, daß entsprechend gestaltete Düsenköpfe 29 sich benachbart zur Innenseite der schräggerichteten Außenlappen 17, 18 erstrecken (Fig. 5). In dieser Position können in zwei aufeinanderfolgenden Sprühtakten Leimstreifen 30, 31 (hot-melt) auf die Innenlappen 15, 16 aufgesprüht werden.The carton packs 10 are filled outside the aggregates shown here and partially folded in the area of the bottom wall 19 and the top wall 20, namely with respect to the inner tabs 15, 16. These are already folded into the end position when the carton Pack 10 reaches the area of a gluing station 26. The outer tabs 17, 18 are pre-folded here so that they are in an inclined position (Fig. 5). With this relative position of the outer tabs 17, 18, the carton pack 10 can glue members 27, 28 arranged on both sides of the feed conveyor 11 are moved past such that appropriately designed nozzle heads 29 extend adjacent to the inside of the oblique outer tabs 17, 18 (FIG. 5). In this position, glue strips 30, 31 (hot-melt) can be sprayed onto the inner tabs 15, 16 in two successive spray cycles.

Auf die Beleimungsstation 26 folgt in Förderrichtung eine Faltstation 32. In dieser werden zwei Maßnahmen im Bereich der Faltlappen vorgenommen. Zum einen werden die Außenlappen 17, 18 an die Innenlappen 15, 16 gedrückt, also in Endstellung gefaltet. Zum anderen werden die Außenlappen 17, 18 nach diesem Faltschritt in bezug auf die Relativstellung korrigiert bzw. ausgerichtet, derart, daß die Außenlappen 17, 18 im Bereich der Trennfuge 25 aneinanderstoßen.A folding station 32 follows the gluing station 26 in the conveying direction. Two measures are carried out in this in the area of the folding tabs. Firstly, the outer tabs 17, 18 are pressed against the inner tabs 15, 16, that is to say folded in the end position. On the other hand, the outer tabs 17, 18 are corrected or aligned with respect to the relative position after this folding step in such a way that the outer tabs 17, 18 abut each other in the region of the parting line 25.

Für den ersten Schritt sind seitlich neben der Zuförderbahn 11 Faltorgane angeordnet, die in Querrichtung gegen die Karton-Packung 10 bewegbar sind. Bei dem vorliegenden Ausführungsbeispiel handelt es sich dabei um Rollenfalter 33, 34 zu beiden Seiten der Zuförderbahn 11. Jeder Rollenfalter 33, 34 besteht aus einem U-förmigen Traggestell 35 mit horizontal gerichteten Flanschen 36. Innerhalb des Traggestells 35, nämlich zwischen den oberen und unteren Flanschen 36, ist eine größere Anzahl von frei drehbaren Andrückrollen 37 mit aufrechter Drehachse angeordnet. Die so ausgebildeten Rollenfalter 33, 34 werden aus einer zurückgezogenen Stellung (Fig. 5) in eine Faltstellung (Fig. 6, links) unter Anlage an den an die Innenlappen 15, 16 gedrückten Außenlappen 17, 18 bewegt. Die Rollenfalter 33, 34 können in dieser Falt- bzw. Andrückposition verharren, wenn die Karton-Packung 10 nach Durchführung der vorgesehen Maßnahmen aus der Faltstation 32 heraus weitergefördert wird.For the first step 11 folding elements are arranged laterally next to the feed conveyor, which can be moved in the transverse direction against the carton pack 10. In the present exemplary embodiment, these are roller folders 33, 34 on both sides of the feed path 11. Each roller folder 33, 34 consists of a U-shaped support frame 35 with horizontally directed flanges 36. Inside the support frame 35, namely between the upper and lower Flanges 36, a larger number of freely rotatable pressure rollers 37 is arranged with an upright axis of rotation. The roller folders 33, 34 formed in this way are moved from a retracted position (FIG. 5) to a folded position (FIG. 6, left), bearing against the outer tabs 17, 18 pressed against the inner tabs 15, 16. The roller folder 33, 34 can remain in this folding or pressing position when the carton pack 10 is conveyed out of the folding station 32 after the measures provided have been carried out.

Zum Ausrichten der Außenlappen 17, 18 derart, daß sie im Bereich der Trennfuge 25 mit den freien Kanten aneinanderliegen, wird auf die Außenlappen 17, 18 ein gegenläufig gerichteter Druck ausgeübt. Wie insbesondere in Fig. 6 gezeigt, werden die Karton-Packungen 10 durch Huborgane angehoben gegen ein oberes Widerlager. Dadurch werden die Außenlappen 17, 18 unter Überwindung eines eventuellen Spalts 38 bis zur Anlage aneinander verschoben. Die Rollenfalter 33, 34 können bei diesem Korrekturvorgang einen geringen Abstand von den Außenlappen 17, 18 aufweisen, wie in Fig. 6 rechts dargestellt.In order to align the outer tabs 17, 18 in such a way that they rest against one another with the free edges in the region of the parting line 25, an oppositely directed pressure is exerted on the outer tabs 17, 18. As shown in particular in Fig. 6, the carton packs 10 are raised by lifting members against an upper abutment. As a result, the outer lobes 17, 18 are moved to one another while overcoming a possible gap 38 until they come into contact. The roller folder 33, 34 can have a small distance from the outer tabs 17, 18 in this correction process, as shown on the right in FIG. 6.

Zur Ausübung des Korrekturdrucks auf die Außenlappen 17, 18 wirken die Druckorgane im Bereich der oberen und unteren Horizontalkanten 23 und 24. Untere Hubleisten 39, 40 werden um eine Achse parallel zur Förderrichtung verschwenkt, derart, daß Nasen 41 unter die (unteren) Horizontalkanten 24 drücken und die Karton-Packung 10 von den Tragstangen 12, 13 abheben.To exert the correction pressure on the outer tabs 17, 18, the pressure elements act in the area of the upper and lower horizontal edges 23 and 24. Lower lifting bars 39, 40 are pivoted about an axis parallel to the conveying direction, in such a way that lugs 41 under the (lower) horizontal edges 24 Press and lift the carton pack 10 from the support rods 12, 13.

An der gegenüberliegenden, oberen Seite sind als Widerlager elastisch gelagerte, nämlich nach oben bewegbare Druckrollen 42 jeweils in einem Gegenhalter 43, 44 angeordnet. Die Gegenhalter 43, 44 sind oberhalb der Bewegungsbahn der Karton-Packungen 10 derart seitlich angeordnet, daß eine Mehrzahl von Druckrollen 42 jeder oberen Horizontalkante 23 anliegen.On the opposite, upper side, elastically mounted, namely upwardly movable pressure rollers 42 are each arranged in a counter-holder 43, 44 as abutments. The counterholders 43, 44 are arranged laterally above the movement path of the carton packs 10 in such a way that a plurality of pressure rollers 42 abut each upper horizontal edge 23.

Die Druckrollen 42 können gegen die Belastung einer Druckfeder 45 nach oben bewegt werden bzw. ausweichen. Zu diesem Zweck sind die Druckrollen 42 eines Gegenhalters 43 an einem langgestreckten Träger 46 angeordnet, der an einer oberhalb der Bewegungsbahn der Karton-Packungen 10 sich erstreckenden Traverse 47 schwenkbar gelagert ist. Der Träger 46 ist zu diesem Zweck mit einem Ansatz 48 versehen, der mit einem Gelenk 49 an der Traverse 47 angebracht ist. Die Druckfedern 45 stützen sich mit dem oberen Ende ebenfalls an der entsprechend bemessenen Traverse 47 ab.The pressure rollers 42 can be moved against the load of a compression spring 45 or dodge. For this purpose, the pressure rollers 42 of a counter-holder 43 are arranged on an elongated carrier 46 which is pivotably mounted on a crossbar 47 which extends above the movement path of the carton packs 10. For this purpose, the carrier 46 is provided with a shoulder 48 which is attached to the crossbar 47 with a joint 49. The compression springs 45 are supported with the upper end also from the appropriately dimensioned crossbar 47.

Der weiter oben beschriebene Faltvorgang mit Hilfe der Rollenfalter 33, 34 und/oder das Ausrichten der Außenlappen 17, 18 bis zur Anlage der freien Kanten aneinander können während des Transports der Karton-Packungen 10 ganz oder teilweise durchgeführt werden. Dies ist durch die Ausbildung der Bearbeitungsorgane mit Rollen bzw. Walzen möglich.The folding process described above with the aid of the roller folder 33, 34 and / or the alignment of the outer tabs 17, 18 until the free edges abut against one another can be carried out in whole or in part during the transport of the carton packs 10. This is possible by designing the processing elements with rollers or rollers.

Die fertiggefalteten Karton-Packungen 10 gelangen durch Weitertransport auf der Zuförderbahn 11 in den Bereich einer Tapestation 50. Hier wird während des Transports der Karton-Packung 10 ein Klebestreifen 51 an den Seitenflächen aufgebracht, also auf Boden-Wandung 19 und/oder Deck-Wandung 20. Der Klebestreifen 51 wird so angebracht, daß die Trennfuge 25 zwischen den beiden Außenlappen 17, 18 überdeckt ist.The fully folded cardboard packs 10 reach the area of a tape station 50 by further transport on the feed conveyor 11. Here, an adhesive strip 51 is applied to the side surfaces during the transport of the cardboard pack 10, that is to say to the bottom wall 19 and / or top wall 20. The adhesive strip 51 is attached so that the parting line 25 between the two outer tabs 17, 18 is covered.

Der Klebestreifen 51 wird durch zu beiden Seiten der Zuförderbahn angeordnete Bandaggregate 52, 53 herkömmlicher Bauart aufgetragen. Von einer Bobine 54 wird ein mit einem Kleber versehenes Band 55 abgezogen, auf die Karton-Pakkung 10 übertragen, an diese angedrückt und in passender Länge abgeschnitten.The adhesive strip 51 is applied by means of tape units 52, 53 of conventional design arranged on both sides of the feed conveyor track. A tape 55 provided with an adhesive is pulled off a bobbin 54, transferred to the cardboard pack 10, pressed against it and cut to a suitable length.

Die durch Anbringen des Klebestreifens 51 komplettierte Karton-Packung 10 gelangt auf der Zuförderbahn 11 in eine Kontrollstation 56. Hier wird die Karton-Packung 10 in bezug auf korrekte Ausbildung im Bereich von Boden-Wandung 19 und Deck-Wandung 20 überprüft.The cardboard pack 10 completed by attaching the adhesive strip 51 arrives at a control station 56 on the feed conveyor 11. Here, the cardboard pack 10 is checked for correct formation in the region of the bottom wall 19 and the top wall 20.

Zu diesem Zweck wird im Bereich der oberen und unteren Horizontalkanten 23, 24 Druck auf Boden-Wandung 19 und Deck-Wandung 20 ausgeübt. Unzulängliche Verklebungen der Faltlappen führen zu einem Verschwenken derselben nach außen (Fig. 6, rechts), so daß eine Fehl-Packung nach außen erkennbar ist.For this purpose, pressure is exerted on the bottom wall 19 and the top wall 20 in the region of the upper and lower horizontal edges 23, 24. Inadequate gluing of the folding tabs causes them to pivot outward (FIG. 6, right), so that incorrect packing occurs is recognizable from the outside.

Zur Durchführung dieser Druckbelastung wird die Karton-Packung 10 angehoben, und zwar durch (drei) Druckleisten 57, 58, 59, die im Bereich der unteren Horizontalkanten 23, 24 sowie in der Mitte der Karton-Packung 10 diese erfassen. Die Druckleisten 57, 58, 59 sind über aufrechte Stege 60 mit einem quergerichteten Tragbalken 61 verbunden, der durch Hubstangen 62 auf- und abbewegbar ist.To carry out this pressure loading, the cardboard pack 10 is raised, namely by (three) pressure strips 57, 58, 59, which grip the latter in the region of the lower horizontal edges 23, 24 and in the middle of the cardboard pack 10. The pressure bars 57, 58, 59 are connected via upright webs 60 to a transverse support beam 61 which can be moved up and down by lifting rods 62.

Die Karton-Packung 10 befindet sich während dieser Phase (in der Kontrollstation 56) auf einen Querförderer 63, in dessen Bereich die Kontrollstation 56 im Anschluß an die Zuförderbahn 11 gebildet ist. Der Querförderer 63 ist als Rollenbahn ausgebildet mit zwei Förderabschnitten 64 und 65. Korrekt ausgebildete Karton-Packungen 10 verlassen die Kontrollstation 56 über den Förderabschnitt 64, also nach links in Fig. 1. Fehl-Packungen werden über den Förderabschnitt 65 nach rechts ausgesondert.The carton pack 10 is located during this phase (in the control station 56) on a cross conveyor 63, in the area of which the control station 56 is formed following the feed conveyor 11. The cross conveyor 63 is designed as a roller conveyor with two conveyor sections 64 and 65. Correctly designed carton packs 10 leave the control station 56 via the conveyor section 64, that is to the left in FIG. 1. Incorrect packs are separated out via the conveyor section 65 to the right.

Zur Durchführung dieser Förderbewegungen sind Antriebsrollen 66 der beiden Förderabschnitte 64, 65 durch einen gemeinsamen Antrieb in beiden Richtungen drehend bewegbar. Zu diesem Zweck sind die jeweils mit Zahnrädern 67 ausgerüsteten Antriebsrollen 66 durch einen gemeinsamen Kettentrieb 68 getrieblich miteinander verbunden. Zu diesem Zweck ist jede der Antriebsrollen 66 mit einem Kettenrad 69 für eine alle Antriebsrollen 66 erfassende gemeinsame Antriebskette 70 versehen. Unterhalb der Ebene der Antriebsrollen 66 ist am Maschinengestell ein gemeinsamer Antrieb 71 installiert, der einen reversiblen Antriebsmotor 72 aufweist. Der mit einer der Antriebsrollen 66 verbundene Antriebsmotor 71 bewirkt eine Drehung der Antriebsrollen in der einen oder anderen Richtung, je nachdem, ob eine intakte Karton-Packung 10 nach links auf den Förderabschnitt 64 oder eine fehlerhafte Karton-Packung 10 nach rechts auf den Förderabschnitt 65 in eine Bearbeitungsstation 73 zu fördern ist.To carry out these conveying movements, drive rollers 66 of the two conveying sections 64, 65 can be rotated in both directions by a common drive. For this purpose, the drive rollers 66, each equipped with gear wheels 67, are connected to one another by a common chain drive 68. For this purpose, each of the drive rollers 66 is provided with a sprocket 69 for a common drive chain 70 which includes all drive rollers 66. A common drive 71, which has a reversible drive motor 72, is installed on the machine frame below the plane of the drive rollers 66. The drive motor 71 connected to one of the drive rollers 66 causes the drive rollers to rotate in one direction or the other, depending on whether an intact carton pack 10 is to the left on the conveying section 64 or a defective carton pack 10 is to the right on the conveying section 65 into a processing station 73 is to be promoted.

Die Kontrollstation 56 ist im Bereich des Querförderers 63 im Anschluß an die Zuförderbahn 11 gebildet. Zur Durchführung der Prüfung werden die Karton-Packungen 10 in der Kontrollstation 56 durch die Druckleisten 57, 58, 59 von den Antriebsrollen 66 des Querförderers 63 abgehoben und gegen oberhalb der Karton-Packung 10 angeordnete, elastische Druckorgane zur Anlage gebracht. Diese sind ebenfalls im Bereich der (oberen) Horizontalkanten 23 angeordnet. Die verhältnismäßig schmalen Druckleisten 57..59 sind jeweils zwischen benachbarten Antriebsrollen 66 angeordnet und können unter die Ebene des Querförderers 63 abgesenkt werden. Die Hubstange 62 ist zu diesen Zweck durch ein Hubgetriebe 74 betätigbar, welches im wesentlichen aus einem Kurbeltrieb 75 besteht. Die mittlere Druckleiste 58 dient als zusätzliches Stützorgan für die Karton-Packung 10.The control station 56 is formed in the area of the cross conveyor 63 following the feed conveyor 11. To carry out the test, the carton packs 10 are lifted in the control station 56 by the pressure bars 57, 58, 59 from the drive rollers 66 of the cross conveyor 63 and brought into contact with elastic pressure members arranged above the carton pack 10. These are also arranged in the region of the (upper) horizontal edges 23. The relatively narrow pressure bars 57..59 are each arranged between adjacent drive rollers 66 and can be lowered below the level of the cross conveyor 63. For this purpose, the lifting rod 62 can be actuated by a lifting gear 74, which essentially consists of a crank mechanism 75. The middle pressure bar 58 serves as an additional support member for the carton pack 10.

Das oberhalb der Karton-Packungen 10 ortsfest gelagerte Gegendruckorgan besteht hier aus zwei seitlichen Druckbalken 76, 77. Diese sind über Tragstäbe mit Druckfedern 79 an einem Teil des Maschinengestells gelagert, nämlich an einer Tragplatte 80. Bei der Aufwärtsbewegung der Karton-Packung 10 werden die Druckbalken 76, 77 unter Erhöhung des Anpreßdrucks angehoben. Dadurch wird auf die aus den Faltlappen gebildeten, seitwärts gerichteten Wandungen (Boden-Wandung 19, Deck-Wandung 20) Druck ausgeübt, der zu einem Aufspringen von nicht ordnungsgemäß verklebten Faltlappen führt.The counter-pressure element, which is mounted in a stationary manner above the carton packs 10, here consists of two lateral pressure beams 76, 77. These are supported on a part of the machine frame by means of support rods with compression springs 79, namely on a support plate 80 Pressure bar 76, 77 raised while increasing the contact pressure. As a result, pressure is exerted on the sideward walls (bottom wall 19, top wall 20) formed from the folding tabs, which leads to the opening of improperly bonded folding tabs.

Fehlerhaft ausgebildete Karton-Packungen 10 werden in der Kontrollstation 56 durch optoelektrische Sensoren identifiziert. Bei dem vorliegenden Ausführungsbeispiel sind im Eingangsbereich der Kontrollstation 56 zu beiden Seiten der Bewegungsbahn der Karton-Packungen 10 jeweils Photosensoren übereinander angeordnet, nämlich ein Sender 81 und ein Empfänger 82. Die zwischen diesen gebildete vertikale Lichtschranke wird eng, nämlich mit geringem Abstand, neben den seitwärts gerichteten Wandungen (Boden-Wandung 19, Deck-Wandung 20) der Karton-Packung 10 gebildet. Etwa vorstehende Teile dieser Wandungen, insbesondere Faltlappen und/oder Klebestreifen 51, werden festgestellt. Sie führen zu einer Aussonderung der betreffenden Karton-Packung 10 in die Bearbeitungsstation 73 durch entsprechenden Antrieb der Antriebsrollen 66.Cardboard packs 10 which are formed incorrectly are identified in the control station 56 by optoelectric sensors. In the present exemplary embodiment, photo sensors, namely a transmitter 81, are arranged one above the other in the entrance area of the control station 56 on both sides of the movement path of the carton packs 10 and a receiver 82. The vertical light barrier formed between them is formed closely, namely with a small distance, next to the sideways-facing walls (bottom wall 19, top wall 20) of the carton pack 10. Any protruding parts of these walls, in particular folding tabs and / or adhesive strips 51, are found. They lead to a separation of the relevant carton pack 10 into the processing station 73 by appropriate driving of the drive rollers 66.

In der Bearbeitungsstation 73 ruht die fehlerhafte Karton-Packung 10 auf frei drehbaren, jedoch nicht angetriebenen Tragrollen 83. Der Fehler an der Karton-Packung 10 wird hier manuell beseitigt. Danach wird die korrigierte Karton-Packung 10 in der Förderfluß zurückgegeben, nämlich bei einer etwaigen Lücke der Zuförderung korrekter Karton-Packungen 10 bei entsprechender Antriebsrichtung der Antriebsrollen 66.In the processing station 73, the defective carton pack 10 rests on freely rotatable, but not driven, support rollers 83. The defect in the carton pack 10 is eliminated manually here. The corrected carton pack 10 is then returned in the conveying flow, namely in the event of a gap in the supply of correct carton packs 10 with a corresponding drive direction of the drive rollers 66.

Der genauer Zeitpunkt der Einführung der reparierten Karton-Packung 10 in den Förderfluß wird durch einen Anschlag 84 bestimmt, der die auf den Antriebsrollen 66 aufliegende Karton-Packung 10 in der angehobenen Position so lange zurückhält, bis der Weg für die Karton-Packung 10 frei ist. der Anschlag 84 wird durch einen Schwenkhebel 85 abgesenkt, so daß dann die Karton-Packung 10 selbststätig abgefördert werden kann.The exact time of introduction of the repaired carton pack 10 into the conveying flow is determined by a stop 84 which holds the carton pack 10 resting on the drive rollers 66 in the raised position until the path for the carton pack 10 is clear is. the stop 84 is lowered by a pivot lever 85 so that the carton pack 10 can then be removed automatically.

Claims (14)

  1. Process for the testing of carton packs (10) in terms of the correct construction of carton walls (19, 20) formed from folding tabs (15, 16; 17, 18) stuck together, pressure being exerted on the folding tabs (15, 16; 17, 18) immediately after the completion of the carton walls (19, 20) by the folding of the said tabs, such that inadequately fixed folding tabs (15, 16; 17, 18) are moved out of the plane of the carton wall (19, 20), characterized in that the carton wall (19, 20) to be tested is subjected to stress by pressure members (57, 58, 59, 76, 77) which take effect in opposite directions on carton edges (23, 24) located opposite one another which delimit the carton wall (19, 20) to be tested.
  2. Process according to Claim 1, characterized in that sideways directed carton walls (19, 20) are subjected to stress by pressure members (57, 58, 59, 76, 77) in the vertical direction.
  3. Process according to Claim 1 or 2, characterized in that the carton packs (10) are lifted in a checking station (56) by pressure members (57, 58, 59) engaging on lower horizontal edges (24) and pressed against upper pressure members in the region of upper horizontal edges (23).
  4. Process according to Claim 1 and one or more of the further claims, characterized in that any faults in the region of the tested walls are detected by photoelectric sensors, preferably by a vertical light barrier (81, 82) in the entry region of the checking station (56).
  5. Process according to Claim 1 and one or more of the further claims, characterized in that the folding tabs (15 to 18) directed sideways in relation to the conveying direction of the carton packs (10) are corrected in terms of the relative position after the application of an adhesive and the folding of the folding tabs into the plane of the walls, in particular the outer tabs (17, 18) in rspect of a bearing against one another of mutually confronting edges in the region of a parting line (25) as a result of the exertion of pressure on the walls (19, 20) or outer tabs (17, 18) transversely relative to the parting line (25).
  6. Process according to Claim 5, characterized in that, in the region of a folding station (32) following a glue-coating station (26), the carton packs (10) are pressed by lifting up against upper pressure members (43, 44) arranged in the plane of the walls (18, 19) directed sideways.
  7. Apparatus for the testing of carton packs (10) in terms of the correct construction of carton walls (19, 20) formed from folding tabs (15, 16; 17, 18) stuck together, the filled carton packs (10) running through a glue-coating station (26) and a folding station (32) and being subjected to stress in a subsequent checking station (56) by pressure members (57, 58, 59, 76, 77), characterized in that the pressure members are capable of being pressed in opposite directions against carton edges (23, 24) located opposite one another which delimit the carton wall (19, 20) to be tested.
  8. Apparatus according to Claim 7, characterized in that the carton packs (10) can be lifted in the checking station (56) by pressure members, especially by pressure bars (57, 58, 59) which engage in the region of lower horizontal edges (24), and in that arranged above the carton packs (10) are counterpressure members, especially pressure girders (76, 77) in the region of the upper horizontal edges (23).
  9. Apparatus according to Claim 7 or 8, characterized in that the checking station (56) is part of a conveyor (63) for the carton packs (10), the conveyor being drivable alternately in one direction or the other, in such a way that carton packs (10) detected as correct are transportable by the conveyor in one direction and defective carton packs (10) in the other direction, defective carton packs (10) into a processing station (73).
  10. Apparatus according to Claim 7 and one or more of the further claims, characterized in that, in the checking station (56), especially vertically directed light barriers (81, 82) are arranged next to the walls of the carton pack (10) which are to be tested, especially next to the sideways directed bottom and cover walls (19, 20), parallel to the wall plane.
  11. Apparatus according to Claim 7 and one or more of the further claims, characterized in that the checking station (56) is preceded by a folding station (32), in which the folding tabs (15 to 18) bonded to one another can be aligned in terms of the relative position, especially outer tabs (17, 18) until mutually confronting free edges come to bear against one another in the region of a parting line (25).
  12. Apparatus according to Claim 11, characterized in that, with a horizontally directed parting line (25) between the outer tabs (17, 18), the latter can be subjected to stress from above and below, in such a way that the outer tabs (17, 18) are shiftable until the edges come to bear against one another.
  13. Apparatus according to Claim 12, characterized in that the carton packs (10) in the folding station (32) can be lifted, especially by lifting bars (39, 40) which engage on the underside and by means of which the carton pack (10) can be pressed against counterpressure members acting above this in the region of the upper horizontal edges (23), especially against elastic pressure rollers (42).
  14. Apparatus according to Claim 12, characterized in that the folding tabs, especially the outer tabs (17, 18), can be subjected to stress for alignment purposes during the transport of the carton packs (10), pressing members, especially pressing rollers (37), coming to bear against the outer tabs (17, 18) in the region of the parting line (25).
EP89107242A 1988-05-18 1989-04-21 Method and apparatus for inspecting carton packages Expired - Lifetime EP0342384B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3816856A DE3816856A1 (en) 1988-05-18 1988-05-18 METHOD AND DEVICE FOR CHECKING CARDBOARD PACKS
DE3816856 1988-05-18

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EP0342384A1 EP0342384A1 (en) 1989-11-23
EP0342384B1 true EP0342384B1 (en) 1993-11-03

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EP (1) EP0342384B1 (en)
JP (1) JP2581799B2 (en)
AU (1) AU614838B2 (en)
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DE4112263A1 (en) * 1991-04-15 1992-10-22 Focke & Co METHOD AND DEVICE FOR THE ELECTRO-OPTICAL SCANING OF (CIGARETTE) PACKS
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DE58906072D1 (en) 1993-12-09
AU3465689A (en) 1989-11-23
CA1330715C (en) 1994-07-19
JP2581799B2 (en) 1997-02-12
DE3816856A1 (en) 1989-11-30
EP0342384A1 (en) 1989-11-23
JPH0232932A (en) 1990-02-02
BR8902305A (en) 1990-01-09
AU614838B2 (en) 1991-09-12
US4984409A (en) 1991-01-15

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