EP0159415B1 - Device for removing, erecting and transferring folded boxes - Google Patents

Device for removing, erecting and transferring folded boxes Download PDF

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Publication number
EP0159415B1
EP0159415B1 EP84116267A EP84116267A EP0159415B1 EP 0159415 B1 EP0159415 B1 EP 0159415B1 EP 84116267 A EP84116267 A EP 84116267A EP 84116267 A EP84116267 A EP 84116267A EP 0159415 B1 EP0159415 B1 EP 0159415B1
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EP
European Patent Office
Prior art keywords
rotor
magazine
arm
suction
delivery 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
Application number
EP84116267A
Other languages
German (de)
French (fr)
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EP0159415A1 (en
Inventor
Eberhard Krieger
Theo Moser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0159415A1 publication Critical patent/EP0159415A1/en
Application granted granted Critical
Publication of EP0159415B1 publication Critical patent/EP0159415B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B65B43/305—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated specially adapted for boxes, cartons or carton blanks
    • 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
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • 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
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically

Definitions

  • the invention relates to a device for removing, erecting and transferring folding box sleeves according to the preamble of the main claim.
  • a device of this type is already known from US Pat. No. 4,211,153, but in which the rotor rotates about a fixed axis.
  • the suction cups are fastened to radially movable supports which are guided in the links of the rotor.
  • a complicated mechanism with a pawl controls a relative movement between the rotor and carriers during each rotation step of the rotor, so that these are adjusted radially.
  • the inventive device for removing, erecting and transferring folding box sleeves with the characterizing features of the main claim has the advantages that its construction is relatively simple and that a very high output can be achieved with it.
  • the magazine can be arranged in front of the conveyor for the erected folding boxes, so that the conveyor track of the conveyor is freely accessible from above.
  • FIG. 1 shows a device for removing, erecting and transferring folding box sleeves in a side view in a first position
  • FIG. 2 shows the device according to FIG. 1 in a side view in a second position.
  • a cartoning machine not shown, has a conveyor chain 10 with driver pairs 11, 12 which feed folding boxes 1 to various processing stations in a horizontal conveyor track.
  • the step-by-step conveyor chain 10 runs via a deflection section into the horizontal conveyor track, at the beginning of which a transfer station 13 for the folding boxes is arranged.
  • the device for removing, erecting and transferring the folding boxes 1 is arranged between the removal end 16 and the transfer station 13. It has a rotor 20 with three suction cups 21, 22, 23 which protrude radially at equal angular intervals and which is gradually rotated clockwise by 120 °.
  • the rotor 20 is rotatably mounted on a pivotable arm 24, the pivot axis 25 of which is located below the removal end 16 of the magazine 15.
  • the swivel arm 24 is connected to a crank 27 by a coupling 26. When the crank 27 rotates, the rotor 20 is pivoted back and forth on an arc between the removal end 16 of the magazine 15 and the transfer station 13.
  • the rotor 20 is rotated clockwise by 120 ° in each case via two belt drives, one of which has a driving wheel 31 on a gear 30, a driven wheel 32 on the pivot axis 25 and a toothed belt 33 and the other one with the driven wheel 32 connected driving wheel 34, a driven wheel 35 connected to the rotor 20 and a toothed belt 36.
  • the gear 30, which is driven by the packaging machine via a toothed belt drive 38, sets the crank 27 in uniform circulation, so that the crank 27 executes one revolution per cycle of the conveyor chain 10. It drives the rotor 20 step by step, so that its pause in rotation essentially coincides with the pivoting movement of the rotor 20 away from the removal end 16 of the magazine 15 towards the transfer station 13. Due to these drives, the suction cups 21, 22, 23 move on a self-contained path, which is composed of several sheets, as shown in broken lines in FIG.
  • the suction device 21 moves from a point 41 during the pause in rotation of the rotor 20 by pivoting the arm 24 from top dead center to bottom dead center on a circular arc to a point 42, wherein he has a folding box 1 from the magazine 15 takes. While the arm 24 swings back again from the bottom dead center to the top dead center, the pivoting movement of the rotor 20 is superimposed on a rotary movement by 120 °, so that the suction device 21 moves from point 42 on an arc to a point 43.
  • the second suction device 22 moves from point 43 to a point 44 and from there likewise on an arc to a point 45 in the area of the transfer station 13.
  • the third suction device 23 moves on an arc to a lower one Point 46 and from there on a relatively flat long arc back to point 41 on the magazine 15.
  • the arc shape of the path of the suction cups 21, 22, 23 from one of the points 41 to 46 is further influenced by the fact that when the arm 24 is pivoted one of the Drive generated by the gear 30 superimposed rotary motion.
  • the suction device 21 detects the foremost flat-lying folding box 1 in the magazine 15 in the region of the point 41 and pulls it away from the removal end 16 of the magazine, the upper edge thereof against a stop surface 50 strikes and something is retained on it so that the folding box 1 partially opens ( Figure 2).
  • this folding box 1 is then brought to a point in which the suction device 21 is located at point 43.
  • the folding box 1 previously removed from the magazine 15 by the suction device 22 becomes during the pivoting movement of the arm 24 from point 43 to point 44 and from there during the rotary movement of the rotor 20 and the return stroke of the arm 24 into the transfer station 13 to point 45 brought.
  • a counter suction device 52 moves on a lever 53 against the wall 7 of the folding box 1, which is opposite the wall 6, on which the suction device 22 engages.
  • the detected folding box 1 is opened and broken so that the tensions in the edges are released so far that the folding box 1 assumes a rectangular cross section.
  • This erection and counter-breaking of the folding boxes 1 can support a fixed stop switch 54 in the conveying path of the folding box 1 or even carry it out automatically.
  • a head flap 2 protruding from the folding box 1 is bent upwards by a fixed switch 55.
  • the folding box 1 strikes with its front wall 8 in the conveying direction against a stop plate 56, so that it essentially maintains its rectangular cross section.
  • the sucker 23 presses the folding box 1 on an arc between points 45 and 46 obliquely downward between two drivers 11, 12 of the conveyor chain 10 during the oscillating movement of the arm 24 from the upper position to the lower position
  • Movement of the suction device 23 with a folding box 1 for inserting the folding box between two drivers 11, 12 of the conveying device 10 comprises a vertical and a horizontal component.
  • the horizontal component corresponds to the horizontal inlet movement of the drivers 11, 12, the conveyor chain 10 when it enters the transfer station 13, so that the side walls 8, 9 of the folding boxes 1 are inserted smoothly between the drivers 11, 12 which are partially spread out when they enter the transfer station 13 .
  • the transfer station 13 is also assigned two vertical fingers 57, 58, which bend projecting side tabs 3, 4 on the side walls of the fat chutes) 1 (FIG. 2). Shortly before the arm 24 reaches its lower dead position, the vacuum on the suction device 23 is switched off, so that the folding box 1 inserted between the drivers 11, 12 is released by the suction device 23. Then the suction device 23 returns from the point 46 during a rotating step of the rotor 20 and the return movement of the arm 24 to the point 41 at the removal end 16 of the magazine 15. In this way, the removal, the erection and the transfer of folding boxes 1 are repeated with each work cycle of the device and the conveyor of the cartoning machine.
  • the rotor 20 rotates in the area of the transfer station 13 counter to the conveying direction of the conveying device 10, it is possible to arrange the magazine 15 in front of the conveying device 10 so that it does not cover the conveying device 10.
  • the folding boxes 1 introduced in the transfer station 13 between two drivers 11, 12 of the conveyor chain 10 rest with their lower wall 7 on horizontal rails 60 and slide on them during the conveyance by the drivers 11, 12.
  • a horizontal switch 59 is arranged at the level of the rails 60, which bends the securing tab 5 downward.
  • the control of the vacuum for the suction cups 21, 22, 23 is carried out by a rotary slide valve, known per se, not shown, arranged coaxially with the rotor 20, in such a way that the respective suction cups 21, 22, 23 a negative pressure is switched on and maintained until the relevant folding box 1 is inserted on the transfer station 13 between two drivers 11, 12.
  • suction units In addition to three suction units, only two or more than three can be arranged on the rotor 20, in which case the respective angle of rotation of the rotor 20 is adapted accordingly.
  • the arrangement of more than two suction units has the advantage that there are one or more intermediate stations at which devices for treating the folding boxes, such as breaking or edging, forced opening, marking, gluing, etc. can be arranged.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Vorrichtung zum Entnehmen, Aufrichten und Überführen von Faltschachtelhülsen nach der Gattung des Hauptanspruchs. Durch die US-PS 4 211 153 ist bereits eine Vorrichtung dieser Art bekannt, bei der sich der Rotor jedoch um eine ortsfeste Achse dreht. Zum Entnehmen von Faltschachtelhülsen aus dem Magazin und zum Ablegen dieser in eine Fördereinrichtung sind die Sauger an radial beweglichen, in Kulissen des Rotors geführten Trägern befestigt. Ein komplizierter Mechanismus mit einer Klinke steuert während jeweils eines Drehschrittes des Rotors eine Relativbewegung zwischen Rotor und Trägern, so daß diese radial verstellt werden.The invention relates to a device for removing, erecting and transferring folding box sleeves according to the preamble of the main claim. A device of this type is already known from US Pat. No. 4,211,153, but in which the rotor rotates about a fixed axis. In order to remove folding box sleeves from the magazine and to place them in a conveying device, the suction cups are fastened to radially movable supports which are guided in the links of the rotor. A complicated mechanism with a pawl controls a relative movement between the rotor and carriers during each rotation step of the rotor, so that these are adjusted radially.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung zum Entnehmen, Aufrichten und Überführen von Faltschachtelhülsen mit den kennzeichnenden Merkmalen des Hauptanspruchs hat die Vorteile, daß ihr Aufbau relativ einfach ist und daß mit ihr eine sehr hohe Ausbringung erzielt werden kann.The inventive device for removing, erecting and transferring folding box sleeves with the characterizing features of the main claim has the advantages that its construction is relatively simple and that a very high output can be achieved with it.

Ferner kann das Magazin vor der Fördereinrichtung für die aufgerichteten Faltschachteln angeordnet sein, so daß die Förderbahn der Fördereinrichtung von oben her frei zugänglich ist.Furthermore, the magazine can be arranged in front of the conveyor for the erected folding boxes, so that the conveyor track of the conveyor is freely accessible from above.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Vorrichtung möglich. Besonders vorteilhaft erweist sich die Anordnung der Schwenkachse des Armes in einem Bereich zwischen dem Entnahmeende des Magazins und der Übergabestation an der Fördereinrichtung bei Anordnung des Magazins vor der Fördereinrichtung.Advantageous further developments and improvements of the device specified in the main claim are possible through the measures listed in the subclaims. The arrangement of the pivot axis of the arm in a region between the removal end of the magazine and the transfer station on the conveyor device proves to be particularly advantageous when the magazine is arranged in front of the conveyor device.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine Vorrichtung zum Entnehmen, Aufrichten und Überführen von Faltschachtelhülsen in Seitenansicht in einer ersten Stellung und Figur 2 die Vorrichtung nach Figur 1 in Seitenansicht in einer zweiten Stellung.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows a device for removing, erecting and transferring folding box sleeves in a side view in a first position and FIG. 2 shows the device according to FIG. 1 in a side view in a second position.

Beschreibung desdescription of AusführungsbeispielsEmbodiment

Eine nicht dargestellte Kartoniermaschine hat eine Förderkette 10 mit Mitnehmerpaaren 11, 12, die Faltschachteln 1 in einer waagrechten Förderbahn verschiedenen Bearbeitungsstationen zuführen. Die schrittweise bewegte Förderkette 10 läuft über eine Umlenkstrecke in die waagrechte Förderbahn ein, an deren Anfang eine Übergabestation 13 für die Faltschachteln angeordnet ist. Oberhalb der Förderbahn der Förderkette 10 und in deren Förderrichtung vor der Übergabestation 13 befindet sich ein Magazin 15 für die flachliegenden Faltschachteln 1, das in einem flachen Winkel zur Förderbahn der Förderkette 10 geneigt ist.A cartoning machine, not shown, has a conveyor chain 10 with driver pairs 11, 12 which feed folding boxes 1 to various processing stations in a horizontal conveyor track. The step-by-step conveyor chain 10 runs via a deflection section into the horizontal conveyor track, at the beginning of which a transfer station 13 for the folding boxes is arranged. Above the conveyor track of the conveyor chain 10 and in its conveying direction in front of the transfer station 13 there is a magazine 15 for the flat-lying folding boxes 1, which is inclined at a flat angle to the conveyor track of the conveyor chain 10.

Die Vorrichtung zum Entnehmen, Aufrichten und Übergeben der Faltschachteln 1 ist zwischen dem Entnahmeende 16 und der Übergabestation 13 angeordnet. Sie hat einen Rotor 20 mit drei in gleichen Winkelabständen radial abstehenden Saugern 21, 22, 23, der schrittweise im Uhrzeigersinn jeweils um 120° gedreht wird. Der Rotor 20 ist an einem schwenkbaren Arm 24 drehbar gelagert, dessen Schwenkachse 25 sich unterhalb des Entnahmeendes 16 des Magazins 15 befindet. Der Schwenkarm 24 ist durch eine Koppel 26 mit einer Kurbel 27 verbunden. Beim Umlaufen der Kurbel 27 wird der Rotor 20 auf einem Kreisbogen zwischen dem Entnahmeende 16 des Magazins 15 und der Übergabestation 13 hin und her geschwenkt.The device for removing, erecting and transferring the folding boxes 1 is arranged between the removal end 16 and the transfer station 13. It has a rotor 20 with three suction cups 21, 22, 23 which protrude radially at equal angular intervals and which is gradually rotated clockwise by 120 °. The rotor 20 is rotatably mounted on a pivotable arm 24, the pivot axis 25 of which is located below the removal end 16 of the magazine 15. The swivel arm 24 is connected to a crank 27 by a coupling 26. When the crank 27 rotates, the rotor 20 is pivoted back and forth on an arc between the removal end 16 of the magazine 15 and the transfer station 13.

Der Rotor 20 wird taktweise jeweils um 120° im Uhrzeigersinn über zwei Riementriebe gedreht, von denen der eine ein treibendes Rad 31 an einem Getriebe 30, ein getriebenes Rad 32 auf der Schwenkachse 25 und einen Zahnriemen 33 sowie der andere ein mit dem getriebenen Rad 32 verbundes treibendes Rad 34, ein mit dem Rotor 20 verbundenes getriebenes Rad 35 und einen Zahnriemen 36 aufweisen.The rotor 20 is rotated clockwise by 120 ° in each case via two belt drives, one of which has a driving wheel 31 on a gear 30, a driven wheel 32 on the pivot axis 25 and a toothed belt 33 and the other one with the driven wheel 32 connected driving wheel 34, a driven wheel 35 connected to the rotor 20 and a toothed belt 36.

Das Getriebe 30, das über einen Zahnriementrieb 38 von der Verpackungsmaschine angetrieben wird, versetzt die Kurbel 27 in gleichförmigen Umlauf, so daß die Kurbel 27 pro Takt der Förderkette 10 jeweils eine Umdrehung ausführt. Den Rotor 20 treibt es schrittweise an, so daß dessen Drehpause im wesentlichen mit der Schwenkbewegung des Rotors 20 vom Entnahmeende 16 des Magazins 15 weg zur Übergabestation 13 hin zusammenfällt. Aufgrund dieser Antriebe bewegen sich die Sauger 21, 22, 23 auf einer in sich geschlossenen Bahn, die sich aus mehreren Bogen zusammensetzt, wie in Figur 1 strichpunktiert dargestellt ist. Ausgehend von einer Stellung in der sich ein Sauger 21 am Entnahmeende 16 des Magazins 15 befindet, bewegt sich der Sauger 21 von einem Punkt 41 während der Drehpause des Rotors 20 durch Verschwenken des Armes 24 vom oberen Totpunkt zum unteren Totpunkt auf einem Kreisbogen zu einem Punkt 42, wobei er eine Faltschachtel 1 aus dem Magazin 15 entnimmt. Während der Arm 24 vom unteren Totpunkt wiederum zum oberen Totpunkt zurückschwingt, wird der Schwenkbewegung des Rotors 20 eine Drehbewegung um 120° überlagert, so daß der Sauger 21 sich vom Punkt 42 auf einem Bogen zu einem Punkt 43 bewegt. Während dieses Arbeitstakts bewegt sich der zweite Sauger 22 vom Punkt 43 zu einem Punkt 44 und von dort ebenfalls auf einem Bogen zu einem Punkt 45 im Bereich der Übergabestation 13. Außerdem bewegt sich während des gleichen Arbeitstaktes der dritte Sauger 23 auf einem Bogen zu einem unteren Punkt 46 und von dort auf einem verhältnismäßig flachen langen Bogen zurück zu Punkt 41 am Magazin 15. Die Bogenform des Weges der Sauger 21, 22, 23 von einem der Punkte 41 bis 46 wird ferner dadurch beeinflußt, daß beim Schwenken des Arms 24 eine dem Antrieb durch das Getriebe 30 überlagerte Drehbewegung erzeugt wird.The gear 30, which is driven by the packaging machine via a toothed belt drive 38, sets the crank 27 in uniform circulation, so that the crank 27 executes one revolution per cycle of the conveyor chain 10. It drives the rotor 20 step by step, so that its pause in rotation essentially coincides with the pivoting movement of the rotor 20 away from the removal end 16 of the magazine 15 towards the transfer station 13. Due to these drives, the suction cups 21, 22, 23 move on a self-contained path, which is composed of several sheets, as shown in broken lines in FIG. Starting from a position in which a suction device 21 is located at the removal end 16 of the magazine 15, the suction device 21 moves from a point 41 during the pause in rotation of the rotor 20 by pivoting the arm 24 from top dead center to bottom dead center on a circular arc to a point 42, wherein he has a folding box 1 from the magazine 15 takes. While the arm 24 swings back again from the bottom dead center to the top dead center, the pivoting movement of the rotor 20 is superimposed on a rotary movement by 120 °, so that the suction device 21 moves from point 42 on an arc to a point 43. During this work cycle, the second suction device 22 moves from point 43 to a point 44 and from there likewise on an arc to a point 45 in the area of the transfer station 13. In addition, during the same work cycle the third suction device 23 moves on an arc to a lower one Point 46 and from there on a relatively flat long arc back to point 41 on the magazine 15. The arc shape of the path of the suction cups 21, 22, 23 from one of the points 41 to 46 is further influenced by the fact that when the arm 24 is pivoted one of the Drive generated by the gear 30 superimposed rotary motion.

Beim Umlaufen der Sauger 21, 22, 23 in der oben beschriebenen Weise erfaßt der Sauger 21 im Bereich des Punktes 41 die vorderste flach liegende Faltschachtel 1 im Magazin 15 und zieht diese vom Entnahmeende 16 des Magazins ab, wobei deren obere Kante gegen eine Anschlagfläche 50 anschlägt und an dieser etwas zurückgehalten wird, so daß sich die Faltschachtel 1 teilweise öffnet (Figur 2). Durch eine Drehbewegung des Rotors 20 wird diese Faltschachtel 1 anschließend zu einer Stelle gebracht, in der sich der Sauger 21 an Punkt 43 befindet. Während dieses Arbeitstaktes wird die zuvor vom Sauger 22 aus dem Magazin 15 entnommene Faltschachtel 1 während der Schwenkbewegung des Armes 24 von Punkt 43 nach Punkt 44 und von dort während der Drehbewegung des Rotors 20 und des Rückhubes des Armes 24 in die Übergabestation 13 zu Punkt 45 gebracht. Wenn der Sauger 22 in den Punkt 44 einläuft, bewegt sich ein Gegensauger 52 an einem Hebel 53 gegen die Wand 7 der Faltschachtel 1, die der Wand 6 gegenüberliegt, an der der Sauger 22 angreift. Während darauf der Sauger 22 von Punkt 44 nach Punkt 45 bewegt wird und der Gegensauger 52 zurückschwingt, wird die erfaßte Faltschachtel 1 geöffnet und gegengebrochen, so daß die Spannungen in den Kanten soweit aufgehoben werden, daß die Faltschachtel 1 einen rechteckigen Querschnitt annimmt. Dieses Aufrichten und Gegenbrechen der Faltschachteln 1 kann eine feste Anschlagweiche 54 im Förderweg der Faltschachtel 1 unterstützen oder sogar selbstttätig ausführen. Beim Einlaufen des Saugers 22 in den Punkt 45 wird eine an der Faltschachtel 1 vorstehende Kopflasche 2 von einer feststehenden Weiche 55 nach oben abgebogen. Schließlich schlägt die Faltschachtel 1 mit ihrer in Förderrichtung vorne liegenden Wand 8 gegen ein Anschlagblech 56, so daß sie ihren Rechteckquerschnitt im wesentlichen beibehält. Während des gleichen Arbeitstaktes drückt der Sauger 23 während der Schwingbewegung des Armes 24 von der oberen Stellung in die untere Stellung die Faltschachtel 1 auf einem Bogen zwischen den Punkten 45 und 46 schräg nach unten zwischen zwei Mitnehmer 11, 12 der Förderkette 10. Dieser Abschnitt der Bewegung des Saugers 23 mit einer Faltschachtel 1 zum Einführen der Faltschachtel zwischen zwei Mitnehmer 11, 12 der Fördereinrichtung 10 umfaßt eine senkrechte und eine waagrechte Komponente. Die waagrechte Komponente entspricht der waagrechten Einlaufbewegung der Mitnehmer 11,12, der Förderkette 10 beim Einlauf in die Übergabestation 13, so daß die Seitenwände 8, 9 der Faltschachteln 1 stoßfrei zwischen die beim Einlaufen in die Übergabestation 13 teilweise gespreizten Mitnehmer 11,12 eingeführt werden. Der Übergabestation 13 sind ferner zwei senkrechte Finger 57, 58 zugeordnet, welche an den Seitenwänden der Fattschachte) 1 abstehende Seitenlaschen 3,4 nach außen umbiegen (Figur 2). Kurz bevor der Arm 24 seine untere Totlage erreicht, wird der Unterdruck am Sauger 23 abgeschaltet, so daß die zwischen die Mitnehmer 11,12 eingesetzte Faltschachtel 1 vom Sauger 23 freigegeben wird. Danach kehrt der Sauger 23 vom Punkt 46 während eines Drehschrittes des Rotors 20 und der Rückbewegung des Armes 24 zum punkt 41 am Entnahmeende 16 des Magazins 15 zurück. In dieser Weise wiederholt sich das Entnehmen, das Aufrichten und das Überführen von Faltschachteln 1 bei jedem Arbeitstakt der Vorrichtung und der Fördereinrichtung der Kartoniermaschine.When the suction device 21, 22, 23 rotates in the manner described above, the suction device 21 detects the foremost flat-lying folding box 1 in the magazine 15 in the region of the point 41 and pulls it away from the removal end 16 of the magazine, the upper edge thereof against a stop surface 50 strikes and something is retained on it so that the folding box 1 partially opens (Figure 2). By means of a rotary movement of the rotor 20, this folding box 1 is then brought to a point in which the suction device 21 is located at point 43. During this working cycle, the folding box 1 previously removed from the magazine 15 by the suction device 22 becomes during the pivoting movement of the arm 24 from point 43 to point 44 and from there during the rotary movement of the rotor 20 and the return stroke of the arm 24 into the transfer station 13 to point 45 brought. When the suction device 22 enters the point 44, a counter suction device 52 moves on a lever 53 against the wall 7 of the folding box 1, which is opposite the wall 6, on which the suction device 22 engages. While thereupon the suction device 22 is moved from point 44 to point 45 and the counter suction device 52 swings back, the detected folding box 1 is opened and broken so that the tensions in the edges are released so far that the folding box 1 assumes a rectangular cross section. This erection and counter-breaking of the folding boxes 1 can support a fixed stop switch 54 in the conveying path of the folding box 1 or even carry it out automatically. When the suction device 22 enters point 45, a head flap 2 protruding from the folding box 1 is bent upwards by a fixed switch 55. Finally, the folding box 1 strikes with its front wall 8 in the conveying direction against a stop plate 56, so that it essentially maintains its rectangular cross section. During the same work cycle, the sucker 23 presses the folding box 1 on an arc between points 45 and 46 obliquely downward between two drivers 11, 12 of the conveyor chain 10 during the oscillating movement of the arm 24 from the upper position to the lower position Movement of the suction device 23 with a folding box 1 for inserting the folding box between two drivers 11, 12 of the conveying device 10 comprises a vertical and a horizontal component. The horizontal component corresponds to the horizontal inlet movement of the drivers 11, 12, the conveyor chain 10 when it enters the transfer station 13, so that the side walls 8, 9 of the folding boxes 1 are inserted smoothly between the drivers 11, 12 which are partially spread out when they enter the transfer station 13 . The transfer station 13 is also assigned two vertical fingers 57, 58, which bend projecting side tabs 3, 4 on the side walls of the fat chutes) 1 (FIG. 2). Shortly before the arm 24 reaches its lower dead position, the vacuum on the suction device 23 is switched off, so that the folding box 1 inserted between the drivers 11, 12 is released by the suction device 23. Then the suction device 23 returns from the point 46 during a rotating step of the rotor 20 and the return movement of the arm 24 to the point 41 at the removal end 16 of the magazine 15. In this way, the removal, the erection and the transfer of folding boxes 1 are repeated with each work cycle of the device and the conveyor of the cartoning machine.

Dadurch daß der Rotor 20 im Bereich der Übergabestation 13 entgegen der Förderrichtung der Fördereinrichtung 10 umläuft, ist es möglich, das Magazin 15 vor der Fördereinrichtung 10 anzuordnen, so daß dieses die Fördereinrichtung 10 nicht abdeckt.Because the rotor 20 rotates in the area of the transfer station 13 counter to the conveying direction of the conveying device 10, it is possible to arrange the magazine 15 in front of the conveying device 10 so that it does not cover the conveying device 10.

Die in der Übergabestation 13 zwischen je zwei Mitnehmer 11,12 der Förderkette 10 eingeführten Faltschachteln 1 liegen mit ihrer unteren Wand 7 auf waagrechten Schienen 60 auf und gleiten auf diesen während der Förderung durch die Mitnehmer 11, 12. Für Faltschachteln 1, an deren unteren Wand eine Sicherungslasche 5 vorsteht, ist in Höhe der Schienen 60 eine waagrechte Weiche 59 angeordnet, welche die Sicherungslasche 5 nach unten abbiegt.The folding boxes 1 introduced in the transfer station 13 between two drivers 11, 12 of the conveyor chain 10 rest with their lower wall 7 on horizontal rails 60 and slide on them during the conveyance by the drivers 11, 12. For folding boxes 1, on the lower ones Wall protrudes a securing tab 5, a horizontal switch 59 is arranged at the level of the rails 60, which bends the securing tab 5 downward.

Die Steuerung des Unterdrucks für die Sauger 21,22,23 wird durch ein an sich bekanntes, nicht dargestelltes, gleichachsig zum Rotor 20 angeordnetes Drehschieberventil in der Weise vorgenommen, daß zum Erfassen einer Faltschachtel 1 im Magazin 15 dem jeweiligen Sauger 21, 22, 23 ein Unterdruck zugeschaltet und solange aufrechterhalten wird, bis die betreffende Faltschachtel 1 auf der Übergabestation 13 zwischen zwei Mitnehmern 11, 12 eingesetzt ist.The control of the vacuum for the suction cups 21, 22, 23 is carried out by a rotary slide valve, known per se, not shown, arranged coaxially with the rotor 20, in such a way that the respective suction cups 21, 22, 23 a negative pressure is switched on and maintained until the relevant folding box 1 is inserted on the transfer station 13 between two drivers 11, 12.

Ergänzend wird darauf hingewiesen, daß zum Verarbeiten von verhältnismäßig großen Faltschachteln anstelle nur jeweils eines Saugers am Rotor 20 jeweils mehrere zu einer Einheit zusammengefaßte Sauger angeordnet sein können.In addition, it is pointed out that for processing relatively large folding boxes instead of only one suction cup on the rotor 20, several each form a unit summarized suction cups can be arranged.

Am Rotor 20 können außer drei Saugereinheiten auch nur zwei oder mehr als drei angeordnet werden, wobei dann der jeweilige Drehwinkel des Rotors 20 entsprechend angepaßt ist. Die Anordung von mehr als zwei Saugereinheiten hat den Vorteil, daß eine oder mehrere Zwischenstationen vorhanden sind, an denen Vorrichtungen zum Behandeln der Faltschachteln, wie Überbrechen oder Kanten, Zwangsöffnung, Markieren, Beleimen u.a. angeordnet werden können.In addition to three suction units, only two or more than three can be arranged on the rotor 20, in which case the respective angle of rotation of the rotor 20 is adapted accordingly. The arrangement of more than two suction units has the advantage that there are one or more intermediate stations at which devices for treating the folding boxes, such as breaking or edging, forced opening, marking, gluing, etc. can be arranged.

Claims (8)

1. Device for removing, aligning and transferring folding boxes (1), having a rotor (20) which is arranged between a magazine (15) and a delivery station (13) of a conveying device (10) and is rotated in cycles in each case through a certain angle, on which rotor (20) several suction units (21, 22, 23) are arranged in radially projecting manner which can be connected in cycles to a vacuum source by means of a valve device, characterized in that the rotor (20) is mounted on an arm (24) which can be pivoted in phase with its rotational motion, and that the rotor (20), in the area of the delivery station (13), has a rotational motion running in the opposite direction to the conveying direction of the conveying device (10).
2. Device according to Claim 1, characterized in that the pivot axis (25) of the arm (24) is arranged in an area between the removal end (16) of the magazine (15) and the delivery station (13) at the conveying device (10), with the conveying device extending away from the magazine.
3. Device according to Claim 2, characterized in that the arm (24), with the rotor (20), is in each case swung away from the magazine (15) essentially during each pause in the rotation of the rotor.
4. Device according to Claim 3, characterised in that the arm (24) is connected to a crank (20) via a coupler (26).
5. Device according to one of Claims 1 to 3, characterized in that the rotor (20) is driven via an endless tension means (36) which is guided over a wheel (34) which is coaxial with the pivot axis (25) of the arm (24) and over a wheel (35) which is coaxial with the axis of rotation of the rotor.
6. Device according to one of Claims 1 to 5, characterized in that, when three suction units (21, 22, 23) are arranged on the rotor (20), a counteracting suction device (52) is arranged in the area of a station between the magazine (15) and the delivery station (13), which counteracting suction device (52) temporarily holds the wall (1) of a folding box (1) which is opposite the wall (6) on which a suction unit of the rotor engages.
7. Device according to Claim 6, characterized in that the counteracting suction device (52) is pivotably arranged.
8. Device according to one of Claims 1 to 7, characterized in that a stop (56) for the wall of a folding box (1), which wall is at the front in the direction of rotation of the rotor (20), is arranged in the delivery station (13) above the path of motion of the flight attachments (11, 12) of the conveying device (10).
EP84116267A 1984-04-07 1984-12-22 Device for removing, erecting and transferring folded boxes Expired EP0159415B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843413232 DE3413232A1 (en) 1984-04-07 1984-04-07 DEVICE FOR REMOVING, Erecting and Transferring Folding Cartons
DE3413232 1984-04-07

Publications (2)

Publication Number Publication Date
EP0159415A1 EP0159415A1 (en) 1985-10-30
EP0159415B1 true EP0159415B1 (en) 1987-07-22

Family

ID=6233007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116267A Expired EP0159415B1 (en) 1984-04-07 1984-12-22 Device for removing, erecting and transferring folded boxes

Country Status (4)

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US (1) US4605393A (en)
EP (1) EP0159415B1 (en)
JP (1) JPS60229743A (en)
DE (2) DE3413232A1 (en)

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Also Published As

Publication number Publication date
US4605393A (en) 1986-08-12
EP0159415A1 (en) 1985-10-30
DE3413232A1 (en) 1985-10-17
DE3464880D1 (en) 1987-08-27
JPS60229743A (en) 1985-11-15

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