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EP1184161B1 - Apparatus for erecting boxes from carton blanks - Google Patents

Apparatus for erecting boxes from carton blanks Download PDF

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Publication number
EP1184161B1
EP1184161B1 EP01117337A EP01117337A EP1184161B1 EP 1184161 B1 EP1184161 B1 EP 1184161B1 EP 01117337 A EP01117337 A EP 01117337A EP 01117337 A EP01117337 A EP 01117337A EP 1184161 B1 EP1184161 B1 EP 1184161B1
Authority
EP
European Patent Office
Prior art keywords
blank
feature
arm
blanks
separating device
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
EP01117337A
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German (de)
French (fr)
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EP1184161A2 (en
EP1184161A3 (en
Inventor
Hans Mohrbach
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.)
Mohrbach Maschinenfabrik GmbH
Original Assignee
Mohrbach Maschinenfabrik GmbH
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Filing date
Publication date
Application filed by Mohrbach Maschinenfabrik GmbH filed Critical Mohrbach Maschinenfabrik GmbH
Publication of EP1184161A2 publication Critical patent/EP1184161A2/en
Publication of EP1184161A3 publication Critical patent/EP1184161A3/en
Application granted granted Critical
Publication of EP1184161B1 publication Critical patent/EP1184161B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B65B43/305Opening 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26Folding sheets, blanks or webs
    • B31B50/44Folding sheets, blanks or webs by plungers moving through folding dies

Definitions

  • the invention relates to devices for erecting boxes Cardboard blanks according to the preamble of claim 1.
  • Cardboard blanks are kept in the form of a stack in a magazine.
  • a separating device pulls a blank from the stack.
  • the blanks With the help of a feeder, the blanks are positioned precisely over the Erection unit positioned.
  • the form ram pushes the cardboard blank through the erection mechanism. The cut is formed and the glue spots bonded.
  • a conveyor belt transports the finished boxes to the others Processing stations.
  • a first limitation results from the limited strength of the cardboard, this cannot be pushed through the erecting mechanism as quickly as possible.
  • a second limitation results from the forces caused by the acceleration of the form tappet and the form tappet drive result.
  • a third limitation results from the amount of time that the usual separating devices need to pull a single blank from the supply stack.
  • the present invention is therefore based on the object of a device Specify the type mentioned above, in which the separation of the cardboard blanks and the transport of the same from the supply stack to the feed conveyor to Raising mechanism is even easier, faster and with less vibration.
  • the separating device according to the invention also works with vacuum suction devices and a swiveling movement that turns the blanks by approx. 90 °. in the The difference to known devices is the pivot axis of the Separating device, however, below the transport path or Stack of supplies arranged. There it does not collide with other necessary ones Machine components. In addition, the overall height of the machine remains small.
  • both arm parts using a drive preferably a pneumatic cylinder
  • a drive preferably a pneumatic cylinder
  • the separating device guides a reciprocating one Swivel movement.
  • the separating device rotates in cycles. This allows the Accelerate the separation process further. There are also fewer Vibrations. The result is that this training is constructively possible at all from the two-part design of the arm supporting the suction cups.
  • the magazine is advantageously arranged essentially horizontally, so that the blanks are approximately vertical. Filling the magazine is simplified, the overall height of the machine remains low.
  • the magazine can also be inclined slightly forward can, so the blanks move forward under the action of gravity slip. This also makes the swivel angle of the separating device further reduced.
  • the separation device on the Transport device stored blanks as quickly as possible, but gently and must be fed to the erection unit with a precise fit. This causes the Device with the features of claim 6 Pinch rollers caused increased friction responsible for the Cutting is transported quickly and precisely.
  • the conveying cams have a U-shaped cutout to match the rails on which the cut is made lies. This allows the lower edges of the feed cams to be set lower than the top edge of the rail so that even corrugated blanks can be transported safely become.
  • Each belt preferably has a plurality of conveying cams, their mutual distances to the largest dimension to be processed in the device Blanks is matched.
  • the belts are mounted so that they start from the magazine initially slightly conical and only at the end exactly parallel to the erection mechanism run.
  • the is against Back of the blank in the area of the erecting unit height-adjustable and has a run-on slope that allows the cut to pass through allows.
  • This vertically movable stop prevents the uncontrolled Rebounding of the blanks at high speed against the fixed Stop are transported in the area of the erection unit. The cuts remain precisely over the erection unit.
  • Fig. 1 as a side view
  • Fig. 2 as a top view
  • Fig. 3 as a front view
  • Tappet 13 At the On the left side of the frame 10, an erection mechanism 12 and one can be seen Tappet 13, the one from a cardboard blank in a working stroke Form the complete box, which then the other via a conveyor belt 14 Processing stations is fed.
  • the Separating device 20 consists of a shaft 21, which by a Stepper motor 29 is driven in a controlled manner. On the shaft 21 are on Circumferentially distributed two-part arms 22, 23 attached. The two arm parts 22, 23 are connected to each other via a joint 24; the angle between the two can can be changed using a pneumatic cylinder 25.
  • the free arm part 23 carries a series of vacuum cups 26, which in turn on adjustable arms 27 are attached. Thanks to the adjustable arms 27, the suction cups 26 can be turned on adjust the blanks 1 to be processed.
  • Fig. 1 shows that the suction cups 26 just pulled a blank 1 from the stack 1 ' to have.
  • the shaft 21 stands and that rigidly attached to it Arm part 22.
  • the second arm part 23 is by means of the pneumatic cylinder 25 swung forward until the suction cups 26 take the blank 1.
  • the motor 29 rotates counterclockwise about a quarter turn.
  • the suction devices 26 give the blank 1 free, so that it is deposited on a conveyor track 30. Details should will be explained in more detail with reference to FIG. 2.
  • the separating device 20 then rotates counterclockwise continue until the next arm 22, 23 or the suction cups 26 attached to it can pull off the next blank 1 from the stack 1 '. Thanks to this endlessly in a circle operation is quick. The separation proceeds reliable. Thanks to the arrangement of the shaft 21 of the separating device underneath the magazine 11 and below the transport track 30 there is a low height of the device.
  • the Transport track itself consists of two substantially parallel rails 31 (Fig. 4 and 5) on which the blank 1 runs with low friction.
  • Rails 31 can be seen two endlessly revolving around end pulleys 35
  • Transport belts 32 on which conveyor cams 33 are spaced apart from one another are attached.
  • the conveying cams 33 lay against the blank 1 and from behind transport this in a precise position via the erection unit 12.
  • 12 additional belt rollers 36 can be in front of the erector Swivel castors may be provided. With the help of these castors 36, it is possible Belt between magazine 11 and erector 12 initially slightly conical towards each other and then run exactly parallel in the area of the erection unit 12 to let. This gives you an even better centering of the blanks 1, too if these have been placed slightly tilted by the separating device 20 should be.
  • the suction cups 26 attached to the adjustable arms 27, the stepper motor 29 and the two-part arm 22, 23 can be clearly seen in FIG. 3. You can also see that the separating device 20 between the rails 31 of the Transport device 30 moves.
  • Fig. 4 shows an enlarged section of the Transport device 30, as shown in Fig. 3.
  • the lower edge of the conveyor cams 33 can lie lower than the upper edge of the transport rail 31, so that corrugated blanks 1 be safely recorded and transported.
  • Fig. 5 shows purely schematically and in an enlarged perspective view a section of the transport device 30 in the area of the erecting unit.
  • the rear edge of the blank 1 lies against a height-movable stop 38. This has one below Sloping run-up that allows the blank 1 to pass through. As soon as the Trailing edge of the blank 1 has passed the vertically movable stop 38 falls this down and blocks the blank 1 precisely over the Erecting mechanism.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Device for constructing boxes from cardboard sections has a separating device (20) comprising a horizontal drive shaft (21), positioned lower than a transport device (30), and at least one two-part arm (22, 23), whose two parts (22, 23) are connected flexibly to each other and can be tilted against each other using a pneumatic cylinder (25). Vacuum suction apparatus (26) is connected to a free section of the arm (23) and its position is adjustable depending on the cardboard section (1). The separating device (20) is positioned so that it places the cardboard section (1) removed from the stack (1') onto the transport device (30).

Description

Die Erfindung betrifft Vorrichtungen zum Aufrichten von Schachteln aus Kartonzuschnitten gemäß dem Oberbegriff des Anspruchs 1.The invention relates to devices for erecting boxes Cardboard blanks according to the preamble of claim 1.

Vorrichtungen zum Aufrichten von Schachteln aus Kartonzuschnitten sind in zahlreichen Ausführungsformen bekannt. Wesentliche Bestandteile sind das sogenannte Aufrichtewerk und der auf- und abgehende Formstößel. Die Kartonzuschnitte werden in Form eines Stapels in einem Magazin bereitgehalten. Eine Vereinzelungsvorrichtung zieht jeweils einen Zuschnitt vom Vorratsstapel ab. Mit Hilfe eines Zuförderers werden die Zuschnitte positionsgenau über dem Aufrichtewerk positioniert. Auf dem Weg vom Magazin zum Aufrichtewerk werden die nötigen Leimpunkte angebracht. Der Formstößel stößt den Kartonzuschnitt durch das Aufrichtewerk. Dabei werden der Zuschnitt geformt und die Leimstellen verklebt. Ein Abförderband transportiert die fertigen Schachteln zu den weiteren Bearbeitungsstationen.Devices for erecting boxes from cardboard blanks are in numerous embodiments are known. These are essential components the so-called erection mechanism and the up and down ram. The Cardboard blanks are kept in the form of a stack in a magazine. A separating device pulls a blank from the stack. With the help of a feeder, the blanks are positioned precisely over the Erection unit positioned. Become on the way from the magazine to the erection unit the necessary glue points attached. The form ram pushes the cardboard blank through the erection mechanism. The cut is formed and the glue spots bonded. A conveyor belt transports the finished boxes to the others Processing stations.

Die Leistungsfähigkeit der Schachtelaufrichtevorrichtungen ist aus mehreren Gründen begrenzt. Eine erste Begrenzung resultiert aus der begrenzten Festigkeit des Kartons, dieser lässt sich nicht beliebig schnell durch das Aufrichtewerk stoßen. Eine zweite Begrenzung resultiert aus den Kräften, die durch die Beschleunigung des Formstößels und des Formstößelantriebs resultieren. Eine dritte Begrenzung resultiert aus dem Zeitaufwand, den die üblichen Vereinzelungsvorrichtungen benötigen, um je einen einzigen Zuschnitt aus dem Vorratsstapel abzuziehen.The performance of the box erector is several Limited reasons. A first limitation results from the limited strength of the cardboard, this cannot be pushed through the erecting mechanism as quickly as possible. A second limitation results from the forces caused by the acceleration of the form tappet and the form tappet drive result. A third limitation results from the amount of time that the usual separating devices need to pull a single blank from the supply stack.

Die Magazine für die Kartonzuschnitte können entweder so orientiert sein, dass die Zuschnitte waagerecht liegen, oder so orientiert sein, dass die Zuschnitte senkrecht stehen. Da die Zuschnitte dem Aufrichtewerk waagerecht liegend zugeführt werden müssen, bietet es sich an, das Magazin senkrecht zu stellen, so dass die Zuschnitte waagerecht liegen. Eine derartige Vorrichtung ist Gegenstand der DE-U 299 05 588. Da solche stehenden Magazine jedoch sehr schnell eine große Höhe erreichen, ist das Befüllen derselben für das Bedienungspersonal oftmals mit Schwierigkeiten verbunden, insbesondere wenn die Maschinen groß und die Personen klein sind. The magazines for the cardboard blanks can either be oriented so that the Cuts lie horizontally, or be oriented so that the cuts are vertical stand. Since the blanks are fed horizontally to the erector , it makes sense to put the magazine vertically so that the blanks lie horizontally. Such a device is the subject of DE-U 299 05 588. However, since such standing magazines reach a high height very quickly, it is often difficult for the operating personnel to fill them connected, especially when the machines are large and the people are small.

Bei den Schachtelaufrichtevorrichtungen, bei denen das Magazin liegt und die Zuschnitte stehen, muss der vom Stapel abgezogene Zuschnitt um 90° umgelegt werden. Eine solche Vorrichtung ist beispielsweise bekannt aus der US 4,629,446, vorauf der Oberbegriff des Anspruchs 1 basiert. Diese besitzt eine taktweise arbeitende Schwenkvorrichtung in Form eines zweiteiligen Arms. Das vordere Armtell ist mit Vakuumsaugern ausgerüstet und kann gegenüber dem hinteren Armteil verschwenkt werden. Das hintere Armteil ist in einem Schwenklager gelagert, welches höher positioniert ist als die Transportvorrichtung für die Kartons. Die Vakuumsauger ziehen den vordersten Zuschnitt vom Stapel ab und halten Ihn während der Schwenkbewegung vom Stapel zur Transportbahn fest. Diese Technik ist in der Druckindustrie weit verbreitet. Es hat sich jedoch herausgestellt, dass diese und die anderen bekannten Vereinzelungsvorrichtungen für die Anwendung in Vorrichtungen zum Aufrichten von Schachteln aus Kartonzuschnitten noch nicht optimal geeignet sind.In the case of the box erecting devices in which the magazine is located and which Blanks, the cut off the stack must be turned 90 ° become. Such a device is known, for example, from US Pat. No. 4,629,446, on which the preamble of claim 1 is based. This has a cyclically operating swivel device in the form of a two-part arms. The front arm plate is equipped with vacuum suction cups and can be swiveled towards the rear arm part. The rear arm part is stored in a swivel bearing, which is positioned higher than that Carton transport device. The vacuum cups pull the front one Cut from the stack and hold it off during the swiveling movement Stack stuck to the conveyor track. This technology is wide in the printing industry common. However, it has been found that this and the other known ones Separating devices for use in erecting devices of boxes made of cardboard blanks are not yet optimally suitable.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, bei der das Vereinzeln der Kartonzuschnitte und der Transport derselben vom Vorratsstapel auf die Zuförderbahn zum Aufrichtewerk noch einfacher, schneller und vibrationsärmer erfolgt.The present invention is therefore based on the object of a device Specify the type mentioned above, in which the separation of the cardboard blanks and the transport of the same from the supply stack to the feed conveyor to Raising mechanism is even easier, faster and with less vibration.

Diese Aufgabe wird gelöst durch eine Vorrichtung mit den Merkmalen des Anspruchs 1.This object is achieved by a device with the features of Claim 1.

Auch die erfindungsgemäße Vereinzelungsvorrichtung arbeitet mit Vakuumsaugern und einer Schwenkbewegung, die die Zuschnitte um ca. 90° umlegt. Im Unterschied zu bekannten Vorrichtungen ist die Schwenkachse der Vereinzelungsvorrichtung jedoch unterhalb der Transportbahn bzw. des Vorratsstapels angeordnet. Dort kollidiert sie nicht mit anderen notwendigen Maschinenkomponenten. Außerdem bleibt die Bauhöhe der Maschine klein.The separating device according to the invention also works with vacuum suction devices and a swiveling movement that turns the blanks by approx. 90 °. in the The difference to known devices is the pivot axis of the Separating device, however, below the transport path or Stack of supplies arranged. There it does not collide with other necessary ones Machine components. In addition, the overall height of the machine remains small.

Dank der Tatsache, dass der Arm, an dem die Vakuumsauger befestigt sind, zweiteilig ausgebildet ist, wobei beide Armteile mit Hilfe eines Antriebs, vorzugsweise eines Pneumatikzylinders, gegeneinander verschwenkt werden können, erreicht man eine Verteilung der Aufgaben derart, dass das die Sauger tragende Armteil nur für das Abziehen des vordersten Zuschnitts vom Vorratsstapel, das andere Armteil nur für das Umlegen des Zuschnitts in die Waagerechte zuständig ist. Dadurch ergibt sich eine erhebliche Vereinfachung und Beschleunigung des Vorgangs. Thanks to the fact that the arm to which the suction cups are attached is formed in two parts, both arm parts using a drive, preferably a pneumatic cylinder, are pivoted against each other you can achieve a distribution of tasks in such a way that the sucker load-bearing arm part only for pulling off the foremost cut from the Stack of supplies, the other arm part only for folding the blank into the Horizontal is responsible. This results in a considerable simplification and Accelerate the process.

Im einfachsten Fall führt die Vereinzelungsvorrichtung eine hin- und hergehende Schwenkbewegung aus. Gemäß einer vorteilhaften Weiterbildung der Erfindung rotiert die Vereinzelungsvorrichtung taktweise. Dadurch lässt sich der Vereinzelungsvorgang weiter beschleunigen. Außerdem entstehen weniger Vibrationen. Dass diese Weiterbildung konstruktiv überhaupt möglich ist, resultiert aus der zweiteiligen Ausführung des die Sauger tragenden Arms.In the simplest case, the separating device guides a reciprocating one Swivel movement. According to an advantageous development of the invention the separating device rotates in cycles. This allows the Accelerate the separation process further. There are also fewer Vibrations. The result is that this training is constructively possible at all from the two-part design of the arm supporting the suction cups.

Vorteilhafterweise ist das Magazin im wesentlichen waagerecht angeordnet, so daß die Zuschnitte etwa senkrecht stehen. Das Befüllen des Magazins ist vereinfacht, die Bauhöhe der Maschine bleibt gering.The magazine is advantageously arranged essentially horizontally, so that the blanks are approximately vertical. Filling the magazine is simplified, the overall height of the machine remains low.

Es versteht sich, dass das Magazin auch leicht schräg nach vorne geneigt sein kann, so dass die Zuschnitte schon unter der Wirkung der Schwerkraft nach vorne rutschen. Außerdem wird dadurch der Schwenkwinkel der Vereinzelungsvorrichtung weiter verkleinert.It goes without saying that the magazine can also be inclined slightly forward can, so the blanks move forward under the action of gravity slip. This also makes the swivel angle of the separating device further reduced.

Es versteht sich, dass die von der Vereinzelungsvorrichtung auf der Transportvorrichtung abgelegten Zuschnitte möglichst schnell, jedoch schonend und passgenau dem Aufrichtewerk zugeführt werden müssen. Dies bewirkt die Vorrichtung mit den Merkmalen des Anspruchs 6. Dabei ist die von den Andruckrollen bewirkte Erhöhung der Reibung dafür verantwortlich, dass der Zuschnitt schnell und passgenau transportiert wird.It is understood that the separation device on the Transport device stored blanks as quickly as possible, but gently and must be fed to the erection unit with a precise fit. This causes the Device with the features of claim 6 Pinch rollers caused increased friction responsible for the Cutting is transported quickly and precisely.

Eine alternative Ausführungsform ist Gegenstand des Anspruchs 7. Wesentlicher Vorteil dieser Variante ist, dass die Transportriemen nur eine geringe Masse haben, so dass sie sich schnell beschleunigen und abbremsen lassen, wobei praktisch keine Vibrationen erzeugt werden. Gleichzeitig zentrieren sie den Zuschnitt auf seinem Weg zum Aufrichtewerk. Während des Transports liegt der Zuschnitt auch nur auf zwei schmalen Führungsschienen auf, wodurch praktisch keine den Transport bremsenden Reibkräfte entstehen. An alternative embodiment is the subject of claim 7 The advantage of this variant is that the transport belts have a low mass, so that they can be accelerated and braked quickly, practically none Vibrations are generated. At the same time, they center the blank on his Path to the topping-up plant. The blank just lies on during transport two narrow guide rails, making practically no transportation braking friction forces arise.

Gemäß einer bevorzugten Ausgestaltung der Erfindung besitzen die Fördernocken einen U-förmigen Ausschnitt, passend zu den Schienen, auf denen der Zuschnitt liegt. Dadurch können die Unterkanten der Fördernocken tiefer gelegt werden als die Oberkante der Schiene, so dass auch gewellte Zuschnitte sicher transportiert werden.According to a preferred embodiment of the invention, the conveying cams have a U-shaped cutout to match the rails on which the cut is made lies. This allows the lower edges of the feed cams to be set lower than the top edge of the rail so that even corrugated blanks can be transported safely become.

Vorzugsweise besitzt jeder Riemen mehrere Fördernocken, wobei deren gegenseitigen Abstände auf das Größtmaß der in der Vorrichtung zu verarbeitenden Zuschnitte abgestimmt ist.Each belt preferably has a plurality of conveying cams, their mutual distances to the largest dimension to be processed in the device Blanks is matched.

Um die Zentrierung des Zuschnitts auf seinem Weg zum Aufrichtewerk weiter zu verbessern, werden die Riemen so montiert, dass sie vom Magazin ausgehend zunächst leicht konisch und erst am Schluss genau parallel auf das Aufrichtewerk zulaufen.To further center the blank on its way to the erector the belts are mounted so that they start from the magazine initially slightly conical and only at the end exactly parallel to the erection mechanism run.

Vorteilhafterweise wird dies dadurch erreicht, dass zwischen den endseitigen Umlenkrollen eine dritte Rolle als Lenkrolle positioniert wird.This is advantageously achieved in that between the ends Deflection rollers a third roller is positioned as a steering roller.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist der sich gegen die Rückseite des Zuschnitts legende Anschlag im Bereich des Aufrichtewerks höhenbeweglich und besitzt eine Anlaufschräge, die das Passieren des Zuschnitts ermöglicht. Dieser höhenbewegliche Anschlag verhindert das unkontrollierte Zurückprallen der Zuschnitte, die mit großer Geschwindigkeit gegen den festen Anschlag im Bereich des Aufrichtewerks transportiert werden. Die Zuschnitte bleiben passgenau über dem Aufrichtewerk liegen.According to a preferred embodiment of the invention, the is against Back of the blank in the area of the erecting unit height-adjustable and has a run-on slope that allows the cut to pass through allows. This vertically movable stop prevents the uncontrolled Rebounding of the blanks at high speed against the fixed Stop are transported in the area of the erection unit. The cuts remain precisely over the erection unit.

Anhand der Zeichnung soll die Erfindung in Form eines Ausführungsbeispiels näher erläutert werden. Es zeigen

Fig. 1
eine Seitenansicht einer Vorrichtung zum Aufrichten von Schachteln aus
Fig. 2
eine Draufsicht auf die Vorrichtung der Fig. 1,
Fig. 3
eine Stirnansicht der Vorrichtung der Fig. 1 und 2,
Fig. 4
in vergrößerter Darstellung einen Ausschnitt aus einer Transportvorrichtung, wie sie in der Schachtelaufrichtevorrichtung der Fig. 1 bis 3 verwendet wird und
Fig. 5
in rein schematischer, perspektivischer und vergrößerter Darstellung einen Ausschnitt aus der Transportvorrichtung im Bereich des Aufrichtewerks.
Based on the drawing, the invention will be explained in more detail in the form of an embodiment. Show it
Fig. 1
a side view of a device for erecting boxes
Fig. 2
2 shows a top view of the device of FIG. 1,
Fig. 3
2 shows an end view of the device of FIGS. 1 and 2,
Fig. 4
an enlarged view of a section of a transport device, as used in the box erecting device of FIGS. 1 to 3 and
Fig. 5
in a purely schematic, perspective and enlarged representation, a section of the transport device in the area of the erection unit.

Fig. 1 als Seitenansicht, Fig. 2 als Draufsicht und Fig. 3 als Stirnansicht zeigen eine Vorrichtung zum Aufrichten von Schachteln aus Kartonzuschnitten 1. Man erkennt zunächst ein Rahmengestell 10, an dem rechts oben ein Vorratsmagazin 11 angebracht ist, in dem sich ein Stapel 1' von Kartonzuschnitten befindet. An der linken Seite des Rahmengestells 10 erkennt man ein Aufrichtewerk 12 und einem Formstößel 13, die aus einem Kartonzuschnitt in einem Arbeitshub einen kompletten Karton formen, der dann über ein Abförderband 14 den weiteren Bearbeitungsstationen zugeführt wird.Fig. 1 as a side view, Fig. 2 as a top view and Fig. 3 as a front view show a Device for erecting boxes from cardboard blanks 1. You can see first a frame 10, on which a storage magazine 11 is located at the top right is attached, in which there is a stack 1 'of cardboard blanks. At the On the left side of the frame 10, an erection mechanism 12 and one can be seen Tappet 13, the one from a cardboard blank in a working stroke Form the complete box, which then the other via a conveyor belt 14 Processing stations is fed.

Zwischen Magazin 11 und Aufrichtewerk 12, 13 befindet sich eine Vereinzelungsvorrichtung 20, die den jeweils vordersten Zuschnitt 1 vom Stapel 1' abzieht und ihn auf eine Transportvorrichtung 30 flach auflegt. Die Vereinzelungsvorrichtung 20 besteht aus einer Welle 21, die von einem Schrittmotor 29 taktweise gesteuert angetrieben wird. An der Welle 21 sind am Umfang verteilt zweiteilige Arme 22, 23 befestigt. Die beiden Armteile 22, 23 sind über ein Gelenk 24 miteinander verbunden; der Winkel zwischen den beiden kann mit Hilfe eines Pneumatikzylinders 25 verändert werden. Das freie Armteil 23 trägt eine Reihe von Vakuumsaugem 26, die ihrerseits an verstellbaren Armen 27 befestigt sind. Dank der verstellbaren Arme 27 lassen sich die Sauger 26 jeweils an die zu verarbeitenden Zuschnitte 1 anpassen.There is a between the magazine 11 and the erecting mechanism 12, 13 Separating device 20, the frontmost blank 1 from the stack 1 ' subtracts and places it flat on a transport device 30. The Separating device 20 consists of a shaft 21, which by a Stepper motor 29 is driven in a controlled manner. On the shaft 21 are on Circumferentially distributed two-part arms 22, 23 attached. The two arm parts 22, 23 are connected to each other via a joint 24; the angle between the two can can be changed using a pneumatic cylinder 25. The free arm part 23 carries a series of vacuum cups 26, which in turn on adjustable arms 27 are attached. Thanks to the adjustable arms 27, the suction cups 26 can be turned on adjust the blanks 1 to be processed.

Fig. 1 zeigt, dass die Sauger 26 gerade einen Zuschnitt 1 vom Stapel 1' abgezogen haben. Während des Abziehens steht die Welle 21 und das an ihr starr befestigte Armteil 22. Das zweite Armteil 23 wird mit Hilfe des Pneumatikzylinders 25 vorgeschwenkt, bis die Sauger 26 den Zuschnitt 1 fassen. Anschließend wird das Armteil 23 zurückgeschwenkt, wobei der Zuschnitt 1 sich vom Stapel 1' löst. Danach dreht der Motor 29 etwa eine Viertelumdrehung gegen den Uhrzeigersinn. Sobald der Zuschnitt 1 etwa waagerecht liegt, geben die Sauger 26 den Zuschnitt 1 frei, so dass dieser auf einer Förderbahn 30 abgelegt wird. Einzelheiten sollen anhand der Fig. 2 näher erläutert werden.Fig. 1 shows that the suction cups 26 just pulled a blank 1 from the stack 1 ' to have. During the removal, the shaft 21 stands and that rigidly attached to it Arm part 22. The second arm part 23 is by means of the pneumatic cylinder 25 swung forward until the suction cups 26 take the blank 1. Then that will Arm part 23 pivoted back, the blank 1 detaching from the stack 1 '. Thereafter, the motor 29 rotates counterclockwise about a quarter turn. As soon as the blank 1 lies approximately horizontally, the suction devices 26 give the blank 1 free, so that it is deposited on a conveyor track 30. Details should will be explained in more detail with reference to FIG. 2.

Anschließend dreht sich die Vereinzelungsvorrichtung 20 gegen den Uhrzeigersinn weiter, bis der nächste Arm 22, 23 bzw. die an diesem befestigten Sauger 26 den nächsten Zuschnitt 1 vom Stapel 1' abziehen können. Dank dieses endlos im Kreis laufenden Betriebes ergibt sich eine schnelle Arbeitsweise. Das Vereinzeln verläuft betriebssicher. Dank der Anordnung der Welle 21 der Vereinzelungsvorrichtung unterhalb des Magazins 11 und unterhalb der Transportbahn 30 ergibt sich eine geringe Bauhöhe der Vorrichtung.The separating device 20 then rotates counterclockwise continue until the next arm 22, 23 or the suction cups 26 attached to it can pull off the next blank 1 from the stack 1 '. Thanks to this endlessly in a circle operation is quick. The separation proceeds reliable. Thanks to the arrangement of the shaft 21 of the separating device underneath the magazine 11 and below the transport track 30 there is a low height of the device.

Fig. 2 zeigt einen Zuschnitt 1, der auf der Transportbahn 30 liegt. Die Transportbahn selbst besteht aus zwei im wesentlichen parallelen Schienen 31 (Fig. 4 und 5), auf denen der Zuschnitt 1 mit geringer Reibung läuft. Neben den Schienen 31 erkennt man zwei um endseitige Umlenkrollen 35 endlos umlaufende Transportriemen 32, an denen gegenseitig beabstandet Fördemocken 33 angebracht sind. Die Fördernocken 33 legen sich von hinten an den Zuschnitt 1 und transportieren diesen positionsgenau über das Aufrichtewerk 12. Dabei wird der Zuschnitt 1 von den Transportriemen geführt und vor allem zentriert.2 shows a blank 1 which lies on the transport path 30. The Transport track itself consists of two substantially parallel rails 31 (Fig. 4 and 5) on which the blank 1 runs with low friction. In addition to the Rails 31 can be seen two endlessly revolving around end pulleys 35 Transport belts 32 on which conveyor cams 33 are spaced apart from one another are attached. The conveying cams 33 lay against the blank 1 and from behind transport this in a precise position via the erection unit 12. The Blank 1 guided by the conveyor belt and above all centered.

Wie Fig. 2 zeigt, können vor dem Aufrichtewerk 12 zusätzliche Riemenrollen 36 als Lenkrollen vorgesehen sein. Mit Hilfe dieser Lenkrollen 36 ist es möglich, die Riemen zwischen Magazin 11 und Aufrichtewerk 12 zunächst leicht konisch aufeinander zu und im Bereich des Aufrichtewerks 12 dann exakt parallel laufen zu lassen. Dadurch erhält man eine noch bessere Zentrierung der Zuschnitte 1, auch wenn diese von der Vereinzelungsvorrichtung 20 leicht verkantet abgelegt worden sein sollten. As shown in FIG. 2, 12 additional belt rollers 36 can be in front of the erector Swivel castors may be provided. With the help of these castors 36, it is possible Belt between magazine 11 and erector 12 initially slightly conical towards each other and then run exactly parallel in the area of the erection unit 12 to let. This gives you an even better centering of the blanks 1, too if these have been placed slightly tilted by the separating device 20 should be.

Die an den verstellbaren Armen 27 angebrachten Sauger 26, der Schrittmotor 29 und der zweiteilige Arm 22, 23 sind in Fig. 3 gut zu erkennen. Man erkennt ferner, dass die Vereinzelungsvorrichtung 20 sich zwischen den Schienen 31 der Transportvorrichtung 30 bewegt.The suction cups 26 attached to the adjustable arms 27, the stepper motor 29 and the two-part arm 22, 23 can be clearly seen in FIG. 3. You can also see that the separating device 20 between the rails 31 of the Transport device 30 moves.

Fig. 4 zeigt in vergrößerter Darstellung einen Ausschnitt aus der Transportvorrichtung 30, wie sie in Fig. 3 dargestellt war. Man erkennt eine der beiden Transportschienen 31 sowie im Schnitt das vorlaufende und rücklaufende Trumm des Transportriemens 32 mit den daran befestigten Fördernocken 33. Diese besitzen auf ihrer Unterseite einen U-förmigen Ausschnitt 34, passend zu der Transportschiene. Dadurch kann die Unterkante der Fördernocken 33 tiefer liegen als die Oberkante der Transportschiene 31, so dass auch gewellte Zuschnitte 1 sicher erfasst und transportiert werden.Fig. 4 shows an enlarged section of the Transport device 30, as shown in Fig. 3. You can see one of the two transport rails 31 and on average the leading and returning Trumm of the conveyor belt 32 with the conveyor cams 33 attached to it have on their underside a U-shaped cutout 34, matching the Transport rail. As a result, the lower edge of the conveyor cams 33 can lie lower than the upper edge of the transport rail 31, so that corrugated blanks 1 be safely recorded and transported.

Fig. 5 zeigt rein schematisch und in vergrößerter, perspektivischer Darstellung einen Ausschnitt aus der Transportvorrichtung 30 im Bereich des Aufrichtewerks. Man erkennt den auf den beiden Schienen 31 liegenden Zuschnitt 1, dessen Vorderkante an einem festen Anschlag 36 anliegt. Die Hinterkante des Zuschnitts 1 liegt an einem höhenbeweglichen Anschlag 38 an. Dieser besitzt unten eine Anlaufschräge, die das Passieren des Zuschnitts 1 ermöglicht. Sobald die Hinterkante des Zuschnitts 1 den höhenbeweglichen Anschlag 38 passiert hat, fällt dieser nach unten und blockiert den Zuschnitt 1 passgenau über dem Aufrichtewerk.Fig. 5 shows purely schematically and in an enlarged perspective view a section of the transport device 30 in the area of the erecting unit. One can see the blank 1 lying on the two rails 31, its Front edge abuts a fixed stop 36. The rear edge of the blank 1 lies against a height-movable stop 38. This has one below Sloping run-up that allows the blank 1 to pass through. As soon as the Trailing edge of the blank 1 has passed the vertically movable stop 38 falls this down and blocks the blank 1 precisely over the Erecting mechanism.

Wie Fig. 5 ferner zeigt, ist der höhenbewegliche Anschlag 38 an einem Zentrierbock 40 angelenkt, der auch eine Andruckrolle 39 trägt, die verhindert, dass die Seitenkanten des Zuschnitts 1 sich während des schnellen Transports anheben und mit dem höhenbeweglichen Anschlag 38 oder anderen Maschinenteilen kollidieren.5 also shows, the height-movable stop 38 is on a centering bracket 40 articulated, which also carries a pressure roller 39, which prevents the Side edges of the blank 1 lift up during fast transport and collide with the height-adjustable stop 38 or other machine parts.

Claims (11)

  1. An apparatus for erecting boxes from cardboard blanks (1), substantially comprising
    a framework (10),
    a supply magazine (11) for stacked blanks (1),
    a separating device (20) which removes the first blank (1) from the stack (1'),
    an erecting mechanism (12),
    a conveying device (30) which feeds the separated blank (1) in a flat and horizontal condition to the erecting mechanism (12),
    adjustable stops (37,38) which position the blank (1) accurately above the erecting mechanism (12),
    a forming punch (13),
    and a conveyor belt (14) for the finished cardboard box,
    the separating device (20) comprises a horizontal axis,
    a two-part arm (22,23) thereon,
    the two parts (22,23) of which are
    connected to one another in an articulated manner
    and can be pivoted in a controlled manner relative to one another by a drive means (25),
    on the free arm part (23) of the two-part arm (22,23) there are mounted suction cups (26),
    whose position is adjustable in accordance with the respective blank (1),
    the separating device (20) is positioned so that it places the blank (1) removed from the stack (1') on the conveying device (30),
    characterised by the features:
    each sucker (26) is mounted on its own adjustable arm (27) which is connected to the free arm part,
    the at least one two-part arm (22,23) is fastened to a shaft (21) which
    is motor-driven
    and is situated lower down than the conveying device (30) .
  2. An apparatus according to Claim 1, characterised by the feature:
    the separating device (20) rotates in a synchronised manner.
  3. An apparatus according to Claim 1 or 2, characterised by the feature:
    the magazine (11) is disposed substantially horizontally.
  4. An apparatus according to any one of Claims 1 to 3, characterised by the feature:
    a pneumatic cylinder (25) pivots the two arm parts (22,23) relative to one another.
  5. An apparatus according to any one of Claim 1 to 4, characterised by the feature:
    the conveying device (30) comprises
    a conveyor belt
    and pressure rollers (39) which press the blank (1) on to the conveyor belt.
  6. An apparatus according to any one of Claims 1 to 3, characterised by the features:
    the conveying device (30) comprises
    two parallel rails (31) and
    two parallel synchronously driven endless conveying belts (32),
    each belt (32)
    circulates about two deflection pulleys (35) with a vertical axis
    and carries on its outside at least one conveyor cam (33) which is applied from the rear against the blank (1) disposed on the rails (31) and pushes it towards the erecting mechanism (12).
  7. An apparatus according to Claim 6, characterised by the feature:
    the conveyor cam (33) has a U-shaped recess (34) matching the rail (31).
  8. An apparatus according to Claim 6 or 7, characterised by the features:
    each belt (32) has a plurality of conveyor cams (33),
    whose mutual distances apart are matched to the maximum dimension of the blanks (1).
  9. An apparatus according to any one of Claims 6 to 8, characterised by the feature:
    the belts (32) run starting from the magazine (11) initially slightly conically and only at the end run exactly parallel to the erecting mechanism (12).
  10. An apparatus according to Claim 9, characterised by the feature:
    a guide pulley (36) is situated between the end deflection pulleys (35).
  11. An apparatus according to any one of Claims 1 to 10, characterised by the features:
    the stop member (38) applied against the back of the blank (1)
    is vertically movable
    and has approach slopes which make possible the passing of the blank (1).
EP01117337A 2000-08-19 2001-07-18 Apparatus for erecting boxes from carton blanks Expired - Lifetime EP1184161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20014323U 2000-08-19
DE20014323U DE20014323U1 (en) 2000-08-19 2000-08-19 Device for erecting boxes from cardboard blanks

Publications (3)

Publication Number Publication Date
EP1184161A2 EP1184161A2 (en) 2002-03-06
EP1184161A3 EP1184161A3 (en) 2003-01-15
EP1184161B1 true EP1184161B1 (en) 2004-09-29

Family

ID=7945372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01117337A Expired - Lifetime EP1184161B1 (en) 2000-08-19 2001-07-18 Apparatus for erecting boxes from carton blanks

Country Status (4)

Country Link
EP (1) EP1184161B1 (en)
AT (1) ATE277751T1 (en)
DE (2) DE20014323U1 (en)
DK (1) DK1184161T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20014323U1 (en) * 2000-08-19 2000-11-02 Mohrbach Maschinenfabrik GmbH, 66509 Rieschweiler-Mühlbach Device for erecting boxes from cardboard blanks
DE20206060U1 (en) * 2002-04-18 2002-09-05 Mohrbach Maschinenfabrik GmbH, 66509 Rieschweiler-Mühlbach Device for erecting boxes from cardboard blanks
CA2435585A1 (en) 2002-08-27 2004-02-27 Sig Technology Ltd. Separating arrangement for a cartoning machine
DE10244103B4 (en) * 2002-09-23 2007-05-24 Uhlmann Pac-Systeme Gmbh & Co. Kg Device for the removal of blanks from a magazine, the shaping of each one upwardly opened cardboard and their transfer into a transport system
ES1073027Y (en) * 2010-06-25 2011-02-08 Boix Maquinaria Sa MACHINE TO ASSEMBLE CARTON BOXES
CN103507997B (en) * 2013-09-28 2015-07-15 无锡市麦杰机械工程有限公司 Bag absorbing arm mechanism of automatic bag feeding machine
CN105151408A (en) * 2015-09-07 2015-12-16 瑞安市海创机械有限公司 Automatic two-time box opening mechanism of boxing machine
CN112718524A (en) * 2020-12-12 2021-04-30 江西洪都航空工业集团有限责任公司 Composite material sorting method
CN114043768B (en) * 2021-11-30 2024-03-26 珠海同达利印刷有限公司 Paperboard cutting device for packaging box production and processing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH293588A (en) * 1949-09-30 1953-09-30 Rose Brothers Ltd Method for supplying a machine with cardboard boxes stored flat, and device for implementing this method.
DE3417326A1 (en) * 1984-05-10 1985-11-14 Greif-Werk Maschinenfabrik GmbH, 2400 Lübeck MACHINE FOR MAKING FOLDING BOXES FROM CUT-OUT
DE3429761A1 (en) * 1984-08-13 1986-02-27 Focke & Co (GmbH & Co), 2810 Verden DEVICE FOR UPRATING FOLDING BOXES
DE20014323U1 (en) * 2000-08-19 2000-11-02 Mohrbach Maschinenfabrik GmbH, 66509 Rieschweiler-Mühlbach Device for erecting boxes from cardboard blanks

Also Published As

Publication number Publication date
EP1184161A2 (en) 2002-03-06
ATE277751T1 (en) 2004-10-15
DE50103846D1 (en) 2004-11-04
EP1184161A3 (en) 2003-01-15
DK1184161T3 (en) 2005-02-07
DE20014323U1 (en) 2000-11-02

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