EP1829805B1 - Device for separating carton blanks - Google Patents

Device for separating carton blanks Download PDF

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Publication number
EP1829805B1
EP1829805B1 EP07000298A EP07000298A EP1829805B1 EP 1829805 B1 EP1829805 B1 EP 1829805B1 EP 07000298 A EP07000298 A EP 07000298A EP 07000298 A EP07000298 A EP 07000298A EP 1829805 B1 EP1829805 B1 EP 1829805B1
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EP
European Patent Office
Prior art keywords
belts
bands
vacuum
stack
same
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.)
Active
Application number
EP07000298A
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German (de)
French (fr)
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EP1829805A3 (en
EP1829805A2 (en
Inventor
Walter Häfner
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.)
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
Original Assignee
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
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Publication of EP1829805A2 publication Critical patent/EP1829805A2/en
Publication of EP1829805A3 publication Critical patent/EP1829805A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • B65H3/042—Endless-belt separators separating from the bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/124—Suction bands or belts
    • B65H3/126—Suction bands or belts separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/34—Article-retaining devices controlling the release of the articles to the separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
    • 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
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • 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
    • B31B50/064—Feeding sheets or blanks from stacks from the underside of a magazine by being moved in the plane they are lying in
    • 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
    • B31B50/066—Feeding sheets or blanks from stacks from above a magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile

Definitions

  • the invention relates to a device for separating carton blanks from a stack, having the features of the preamble of claim 1.
  • Such a device is for example from the EP-A-0 925 909 known.
  • the stack is approached with first, spaced-apart bands to a barrier, which stops the stack.
  • the first bands are permanently driven and slip under the first stack.
  • second bands are provided, which have the same direction of transport, and which can be switched by means of a gear. If these second belts are not in operation, then these second belts serve as brakes, which hold back the bottom carton blank. In this case, these second bands have a greater friction than the first bands relative to the box blank, so that the discharge of the box blanks from the stack can be controlled via these second bands. If the second bands are switched on via the transmission, then in each case the lowest box blank is removed from the stack and passed under the lock.
  • the US-A-3,988,017 discloses a transport device in which a stack of carton blanks rests on a plurality of conveyor belts.
  • the bottom carton blank in the stack is removed from the stack by means of conveyor belts.
  • These conveyor belts are driven by an electromagnetic clutch and an electromagnetic brake by a general drive mechanism, which is constantly in operation.
  • the carton blanks deducting and transporting away conveyor belts can only be switched on and off.
  • driving the clutch and the brake components are controlled, which are upstream of the conveyor belts. About the clutch and the brake, the conveyor belts are thus controlled only indirectly. This can lead to delayed reactions of the conveyor belts on the drive commands for the clutch and the brake.
  • the invention is therefore based on the object to provide a device for individual singling of box blanks, which is simpler in construction and which is subject to less wear and which gently treats the box blanks.
  • the first bands are stopped when no box blank is to be discharged from the stack, and the first bands are then controlled driven when this discharge is to take place.
  • the first bands are driven directly by means of a servomotor.
  • a servomotor With this servo motor, the first belts can be started and stopped quickly, the belts can be driven at a desired speed, and the servo motor can be precisely controlled.
  • the second bands are completely behind the barrier in the transport direction.
  • the carton blanks transported out of the stack by means of the first belts passing through the barrier are gripped and removed by the second belts.
  • These second belts can be permanently driven and transport the carton blanks into these processing areas.
  • These second belts can either be driven at the same speed as the first belts or at a higher speed than the first belts so that the carton blanks are singulated so as to be spaced from one another.
  • the first and second bands are made of the same material, that is, the first and second bands are the same.
  • first and the second bands are designed in such a way that they exert the same frictional forces on the box blank.
  • first and the second bands have the same friction index.
  • a part of the first bands are formed as vacuum bands.
  • These vacuum bands have the advantage that they can optimally grip the adjacent box blank and ensure that this box blank is transported without slippage from these first bands.
  • the vacuum is variably adjustable.
  • second bands formed as vacuum bands are connected to the first bands formed as vacuum bands. These trained as vacuum bands first and second bands are thus seen in the transport direction one behind the other.
  • the box blanks are thus transferred from one vacuum belt to the other vacuum belt without slippage taking place.
  • the frictional force is increased, with the frictional force with respect to the first belt being substantially equal to the frictional force with respect to the second belt.
  • a portion of the first bands are preferably drivable with a first and another part of the first bands with a second servo motor.
  • the first bands forming the transport plane are divided into a first part and a second part, in the case of deviations from the rectangular shape, e.g. L-shaped blanks of the part of the conveyor belts are switched off, which has transported the narrow part of the blank under the lock and then rests on the overlying blank. This disconnected part of the first conveyor belts then no longer transports the overlying blank.
  • the L-wing projecting to the rear is transported further from the other part of the first belt until it has passed the barrier. Then this other part can also be shut down.
  • FIGS. 1 and 2 is denoted by the reference numeral 10, a transport unit with which from a stack 12, consisting of a plurality of stacked carton blanks 14, each of the lowermost carton blank 14 in the direction of the arrow 16 under a lock 18 is discharged therethrough.
  • the stack 12 lies on first belts 20, of which a first part 22 (FIG. FIG. 1 ) are driven via a first drive shaft 24 and a second part 26 via a second drive shaft 28.
  • the drive is in each case via a servomotor, not shown, which is controlled by a suitable controller.
  • the first bands 20 are followed in the transport direction (arrow 16) by second bands 32, which serve for the further transport of individual box blanks 14 'removed from the stack 12.
  • the second bands 32 thus run in the same direction of rotation and may have the same transport speed or a higher transport speed as the first bands 20.
  • Their drive is via a drive shaft 34th
  • some of the first bands 20 are designed as vacuum bands 36.
  • negative pressure of the bottom box blank 14 is sucked, thereby ensuring that it is transported without slippage.
  • This box blank 14 is transported under the barrier 18, wherein between the lower edge 38 of the barrier 18 and the transport plane 40, a free space is provided, which allows the passage of a single box blank 14.
  • This carton blank 14 ' is gripped by the second belts 32 and sucked by vacuum belts 44, which extend adjacent to the vacuum belts 36.
  • a boom 42 is arranged on which a carrier 46 is fixed with successive pressure rollers 48. These pressure rollers 48 ensure a slip-free transport of the carton blanks 14 on the second belts 32nd

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Vereinzeln von Schachtelzuschnitten aus einem Stapel, mit den Merkmalen des Oberbegriffs des Anspruch 1.The invention relates to a device for separating carton blanks from a stack, having the features of the preamble of claim 1.

Eine derartige Vorrichtung ist zum Beispiel aus der EP-A-0 925 909 bekannt. Bei dieser Vorrichtung wird der Stapel mit ersten, einen Abstand zueinander aufweisenden Bändern an eine Sperre herangefahren, welche den Stapel anhält. Die ersten Bänder werden permanent angetrieben und rutschen unter dem ersten Stapel durch. Zwischen den ersten Bändern sind zweite Bänder vorgesehen, die die gleiche Transportrichtung aufweisen, und welche mittels eines Getriebes zuschaltbar sind. Sind diese zweiten Bänder nicht in Betrieb, dann dienen diese zweiten Bänder als Bremse, die den untersten Schachtelzuschnitt zurückhalten. Dabei weisen diese zweiten Bänder eine größere Reibung auf als die ersten Bänder gegenüber dem Schachtelzuschnitt, so dass der Austrag der Schachtelzuschnitte aus dem Stapel über diese zweiten Bänder gesteuert werden kann. Werden die zweiten Bänder über das Getriebe zugeschaltet, dann wird jeweils der unterste Schachtelzuschnitt aus dem Stapel entfernt und unter der Sperre hindurchgeführt.Such a device is for example from the EP-A-0 925 909 known. In this device, the stack is approached with first, spaced-apart bands to a barrier, which stops the stack. The first bands are permanently driven and slip under the first stack. Between the first bands second bands are provided, which have the same direction of transport, and which can be switched by means of a gear. If these second belts are not in operation, then these second belts serve as brakes, which hold back the bottom carton blank. In this case, these second bands have a greater friction than the first bands relative to the box blank, so that the discharge of the box blanks from the stack can be controlled via these second bands. If the second bands are switched on via the transmission, then in each case the lowest box blank is removed from the stack and passed under the lock.

Als nachteilig hat sich bei dieser Vorrichtung herausgestellt, dass nicht nur die ersten Bänder relativ schnell abgenutzt werden, da sie permanent unter dem Stapel durchrutschen, sondern auch die Schachtelzuschnitte selbst in Mitleidenschaft gezogen werden, da sie mitunter Schleifspuren aufweisen.A disadvantage has been found in this device that not only the first bands are worn relatively quickly, as they slip permanently under the stack, but also the box blanks are even affected, since they sometimes have sanding marks.

Auch bei der Vorrichtung gemäß der US-A-4 363 478 sind Schleifspuren am Zuschnitt nicht zu vermeiden.Also in the device according to the US-A-4,363,478 Grinding marks on the blank can not be avoided.

Die US-A-3 988 017 offenbart eine Transportvorrichtung, bei der ein Stapel mit Schachtelzuschnitten auf mehreren Transportbändern aufliegt. Der im Stapel unterste Schachtelzuschnitt wird mittels Transportbändern vom Stapel abgezogen. Diese Transportbänder werden über eine elektromagnetische Kupplung und eine elektromagnetische Bremse von einem allgemeinen Antriebsmechanismus angetrieben, welcher ständig in Betrieb ist. Die die Schachtelzuschnitte abziehenden und abtransportierenden Transportbänder können nur zu- und abgeschaltet werden. Außerdem werden beim Ansteuern der Kupplung und der Bremse Bauteile angesteuert, welche den Transportbändern vorgeschaltet sind. Über die Kupplung und die Bremse werden die Transportbänder also nur indirekt angesteuert. Dies kann zu verzögerten Reaktionen der Transportbänder auf die Ansteuerbefehle für die Kupplung und die Bremse kommen.The US-A-3,988,017 discloses a transport device in which a stack of carton blanks rests on a plurality of conveyor belts. The bottom carton blank in the stack is removed from the stack by means of conveyor belts. These conveyor belts are driven by an electromagnetic clutch and an electromagnetic brake by a general drive mechanism, which is constantly in operation. The carton blanks deducting and transporting away conveyor belts can only be switched on and off. In addition, when driving the clutch and the brake components are controlled, which are upstream of the conveyor belts. About the clutch and the brake, the conveyor belts are thus controlled only indirectly. This can lead to delayed reactions of the conveyor belts on the drive commands for the clutch and the brake.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum individuellen Vereinzeln von Schachtelzuschnitten bereitzustellen, welche einfacher aufgebaut ist und welche einem geringeren Verschleiß unterliegt und die die Schachtelzuschnitte schonend behandelt.The invention is therefore based on the object to provide a device for individual singling of box blanks, which is simpler in construction and which is subject to less wear and which gently treats the box blanks.

Diese Aufgabe wird bei einer Vorrichtung gelöst, die die Merkmale des Anspruchs 1 aufweist.This object is achieved in a device having the features of claim 1.

Im Gegensatz zum oben genannten Stand der Technik werden bei der erfindungsgemäßen Vorrichtung die ersten Bänder angehalten, wenn kein Schachtelzuschnitt aus dem Stapel ausgetragen werden soll, und werden die ersten Bänder dann gesteuert angetrieben, wenn dieser Austrag erfolgen soll.In contrast to the above-mentioned prior art, in the device according to the invention, the first bands are stopped when no box blank is to be discharged from the stack, and the first bands are then controlled driven when this discharge is to take place.

Von Vorteil ist, dass zwischen diesen ersten Bändern und dem Schachtelzuschnitt keine Relativbewegung stattfindet, dass also diese ersten Bänder nicht durchrutschen und daher nicht, wie beim Stand der Technik, abgenutzt werden. Außerdem werden die Schachtelzuschnitte, die zum Teil auch hochwertig lackiert oder beschichtet sein können, nicht in Mitleidenschaft gezogen.It is advantageous that no relative movement takes place between these first bands and the carton blank, that is to say that these first bands do not slip and are therefore not worn, as in the prior art. In addition, the box blanks, some of which can also be high-quality lacquered or coated, are not affected.

Erfindungsgemäß werden die ersten Bänder mittels eines Servomotors direkt angetrieben. Mit diesem Servomotor können die ersten Bänder schnell angefahren und angehalten werden, die Bänder können mit einer gewünschten Geschwindigkeit angetrieben werden und der Servomotor ist exakt ansteuerbar.According to the invention, the first bands are driven directly by means of a servomotor. With this servo motor, the first belts can be started and stopped quickly, the belts can be driven at a desired speed, and the servo motor can be precisely controlled.

Bei einer vorteilhaften Weiterbildung liegen die zweiten Bänder in Transportrichtung vollständig hinter der Sperre. Die mittels der ersten Bänder aus dem Stapel heraustransportierten Schachtelzuschnitte, die unter der Sperre hindurchwandern, werden von den zweiten Bändern ergriffen und abtransportiert. Diese zweiten Bänder können permanent angetrieben sein und transportieren die Schachtelzuschnitte in die diese weiterverarbeitenden Bereiche.In an advantageous development, the second bands are completely behind the barrier in the transport direction. The carton blanks transported out of the stack by means of the first belts passing through the barrier are gripped and removed by the second belts. These second belts can be permanently driven and transport the carton blanks into these processing areas.

Diese zweiten Bänder können entweder mit gleicher Geschwindigkeit wie die ersten Bänder oder mit einer höheren Geschwindigkeit wie die ersten Bänder angetrieben werden, so dass die Schachtelzuschnitte derart vereinzelt werden, dass sie einen Abstand zueinander aufweisen.These second belts can either be driven at the same speed as the first belts or at a higher speed than the first belts so that the carton blanks are singulated so as to be spaced from one another.

Zur Kostenreduzierung und zur Minimierung der Anzahl an unterschiedlichen Ersatzteilen bestehen die ersten und die zweiten Bänder aus dem gleichen Material, das heißt die ersten und die zweiten Bänder sind gleich.To reduce costs and to minimize the number of different spare parts, the first and second bands are made of the same material, that is, the first and second bands are the same.

Es besteht auch die Möglichkeit, die ersten und die zweiten Bänder so auszugestalten, dass sie die gleichen Reibungskräfte auf den Schachtelzuschnitt ausüben. Eine weitere Variante besteht darin, dass die ersten und die zweiten Bänder den gleichen Reibungsindex aufweisen.It is also possible to design the first and the second bands in such a way that they exert the same frictional forces on the box blank. Another variant is that the first and the second bands have the same friction index.

Um die Anzahl an Bändern zu reduzieren ist vorgesehen, dass ein Teil der ersten Bänder als Vakuumbänder ausgebildet sind. Diese Vakuumbänder besitzen den Vorteil, dass sie den anliegenden Schachtelzuschnitt optimal ergreifen können und sicherstellen, dass dieser Schachtelzuschnitt ohne Schlupf von diesen ersten Bändern transportiert wird. Dabei ist das Vakuum variabel einstellbar.In order to reduce the number of bands is provided that a part of the first bands are formed as vacuum bands. These vacuum bands have the advantage that they can optimally grip the adjacent box blank and ensure that this box blank is transported without slippage from these first bands. The vacuum is variably adjustable.

Bei einer Weiterbildung ist vorgesehen, dass sich in Transportrichtung gesehen an die als Vakuumbänder ausgebildeten ersten Bänder als Vakuumbänder ausgebildete zweite Bänder anschließen. Diese als Vakuumbänder ausgebildeten ersten und zweiten Bänder liegen also in Transportrichtung gesehen hintereinander. Die Schachtelzuschnitte werden also vom einen Vakuumband ans andere Vakuumband übergeben, ohne dass ein Schlupf stattfindet. Durch das Ansaugen der Schachtelzuschnitte an die Oberseite des Vakuumbandes wird die Reibungskraft erhöht, wobei die Reibungskraft bezüglich des ersten Bandes im Wesentlichen gleich groß ist, wie die Reibungskraft bezüglich des zweiten Bandes.In a further development, it is provided that, as seen in the transport direction, second bands formed as vacuum bands are connected to the first bands formed as vacuum bands. These trained as vacuum bands first and second bands are thus seen in the transport direction one behind the other. The box blanks are thus transferred from one vacuum belt to the other vacuum belt without slippage taking place. By sucking the box blanks to the top of the vacuum belt, the frictional force is increased, with the frictional force with respect to the first belt being substantially equal to the frictional force with respect to the second belt.

Mit Vorzug sind bei einem Ausführungsbeispiel ein Teil der ersten Bänder mit einem ersten und ein andere Teil der ersten Bänder mit einem zweiten Servomoter antreibbar. Auf diese Weise müssen bei relativ kleinen Schachtelzuschnitten nicht alle ersten Bänder in Betrieb gesetzt werden, da mit dem ersten Antrieb lediglich ein Teil der ersten Bänder benutzt werden kann, der für den Transport von kleinen Schachtelzuschnitten ausreicht. Da bei der erfindungsgemäßen Vorrichtung die die Transportebene bildenden ersten Bänder in einen ersten und einen zweiten Teil aufgeteilt sind, kann bei von der Rechteckform abweichenden, z.B. L-förmigen Zuschnitten der Teil der Transportbänder abgeschaltet werden, der den Schmalteil des Zuschnitts unter der Sperre hindurchtransportiert hat und dann am darüber liegenden Zuschnitt anliegt. Dieser abgeschaltete Teil der ersten Transportbänder transportiert dann nicht mehr den darüber liegenden Zuschnitt. Der nach hinten abstehende L-Flügel wird aber vom anderen Teil der ersten Bänder weitertransportiert, bis dieser die Sperre passiert hat. Dann kann dieser andere Teil ebenfalls stillgesetzt werden.In one embodiment, a portion of the first bands are preferably drivable with a first and another part of the first bands with a second servo motor. In this way, not all first bands must be put into operation in relatively small box blanks, since with the first drive only a portion of the first bands can be used, which is sufficient for the transport of small box blanks. Since, in the device according to the invention, the first bands forming the transport plane are divided into a first part and a second part, in the case of deviations from the rectangular shape, e.g. L-shaped blanks of the part of the conveyor belts are switched off, which has transported the narrow part of the blank under the lock and then rests on the overlying blank. This disconnected part of the first conveyor belts then no longer transports the overlying blank. The L-wing projecting to the rear, however, is transported further from the other part of the first belt until it has passed the barrier. Then this other part can also be shut down.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist.Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawing, a particularly preferred embodiment is described in detail.

Die Zeichnung zeigt in:

Figur 1
eine perspektivische Darstellung einer im Bereich einer Sperre vorgesehenen Antriebseinheit; und
Figur 2
eine perspektivische Darstellung der gegenüberliegenden Längsseite mit einem dem Stapel entnommenen Schachtelzuschnitt.
The drawing shows in:
FIG. 1
a perspective view of a provided in the area of a lock drive unit; and
FIG. 2
a perspective view of the opposite longitudinal side with a stack removed carton blank.

In den Figuren 1 und 2 ist mit dem Bezugszeichen 10 eine Transporteinheit dargestellt, mit der aus einem Stapel 12, bestehend aus einer Vielzahl übereinander gestapelter Schachtelzuschnitte 14, jeweils der unterste Schachtelzuschnitt 14 in Richtung des Pfeils 16 unter einer Sperre 18 hindurch ausgetragen wird. Der Stapel 12 liegt auf ersten Bändern 20, von denen ein erster Teil 22 (Figur 1) über eine erste Antriebswelle 24 und ein zweiter Teil 26 über eine zweite Antriebswelle 28 angetrieben werden. Der Antrieb erfolgt jeweils über einen nicht dargestellten Servomotor, der über eine geeignete Steuerung angesteuert wird. An die ersten Bänder 20 schließen sich in Transportrichtung (Pfeil 16) zweite Bänder 32 an, die für den Weitertransport einzelner, dem Stapel 12 entnommener Schachtelzuschnitte 14' dienen.In the FIGS. 1 and 2 is denoted by the reference numeral 10, a transport unit with which from a stack 12, consisting of a plurality of stacked carton blanks 14, each of the lowermost carton blank 14 in the direction of the arrow 16 under a lock 18 is discharged therethrough. The stack 12 lies on first belts 20, of which a first part 22 (FIG. FIG. 1 ) are driven via a first drive shaft 24 and a second part 26 via a second drive shaft 28. The drive is in each case via a servomotor, not shown, which is controlled by a suitable controller. The first bands 20 are followed in the transport direction (arrow 16) by second bands 32, which serve for the further transport of individual box blanks 14 'removed from the stack 12.

Die zweiten Bänder 32 laufen also in der gleichen Drehrichtung um und können die gleiche Transportgeschwindigkeit oder eine höhere Transportgeschwindigkeit wie die ersten Bänder 20 aufweisen. Deren Antrieb erfolgt über eine Antriebswelle 34.The second bands 32 thus run in the same direction of rotation and may have the same transport speed or a higher transport speed as the first bands 20. Their drive is via a drive shaft 34th

In der Figur 1 ist noch erkennbar, dass einige der ersten Bänder 20 als Vakuumbänder 36 ausgebildet sind. Mittels des an diesen Vakuumbändern 36 anliegenden Unterdrucks wird der unterste Schachtelzuschnitt 14 angesaugt, wodurch sichergestellt wird, dass dieser schlupffrei transportiert wird. Dieser Schachtelzuschnitt 14 wird unter der Sperre 18 hindurch transportiert, wobei zwischen der Unterkante 38 der Sperre 18 und der Transportebene 40 ein Freiraum vorgesehen ist, der den Durchtritt eines einzigen Schachtelzuschnitts 14 erlaubt. Dieser Schachtelzuschnitt 14' wird von den zweiten Bändern 32 ergriffen und von Vakuumbändern 44 angesaugt, die sich im Anschluss an die Vakuumbänder 36 erstrecken.In the FIG. 1 It can still be seen that some of the first bands 20 are designed as vacuum bands 36. By means of the voltage applied to these vacuum bands 36 negative pressure of the bottom box blank 14 is sucked, thereby ensuring that it is transported without slippage. This box blank 14 is transported under the barrier 18, wherein between the lower edge 38 of the barrier 18 and the transport plane 40, a free space is provided, which allows the passage of a single box blank 14. This carton blank 14 'is gripped by the second belts 32 and sucked by vacuum belts 44, which extend adjacent to the vacuum belts 36.

Aus der Figur 2 ist ersichtlich, dass hinter der Sperre 18 ein Ausleger 42 angeordnet ist, an dem ein Träger 46 mit hintereinander liegenden Andrückrollen 48 befestigt ist. Diese Andrückrollen 48 gewährleisten einen schlupffreien Transport der Schachtelzuschnitte 14 auf den zweiten Bändern 32.From the FIG. 2 it can be seen that behind the barrier 18, a boom 42 is arranged on which a carrier 46 is fixed with successive pressure rollers 48. These pressure rollers 48 ensure a slip-free transport of the carton blanks 14 on the second belts 32nd

Claims (9)

  1. Device for separating carton blanks (14) from a stack (12), comprising a plurality of first belts (20) for supplying the stack (12) to a blocking device (18) which is arranged above the transport plane (40) of the first belts (20) and a free space (30) is present between the transport plane (40) and the bottom edge (38) of the blocking device (18) and allows the passage of a carton blank (14), also comprising second belts (32) having the same transport direction (16) as the first belts (20), wherein the stack (12) lies exclusively on the first belts (20), characterised in that some of the first belts (20) are configured as vacuum belts (36) and that the lowest carton blank (14) is transported slippage-free out of the stack (12) on the first belts (20) and that the first belts (20) are directly driven by means of a servo motor.
  2. Device according to claim 1, characterised in that, seen in the transport direction (16), the second belts (32) lie entirely behind the blocking device (12).
  3. Device according to one of the preceding claims, characterised in that the first and second belts (20 and 32) are made of the same material.
  4. Device according to one of the preceding claims, characterised in that the first and second belts (20 and 32) exert the same frictional forces on the carton blank (14).
  5. Device according to one of the preceding claims, characterised in that the first and second belts (20 and 32) have the same coefficient of friction.
  6. Device according to one of the preceding claims, characterised in that, seen in the transport direction, second belts (32) configured as vacuum belts (44) follow on from the first belts (20) configured as vacuum belts (36).
  7. Device according to claim 6, characterised in that the same vacuum is applied to the first belts (20) configured as vacuum belts (36) and to the second belts (32) configured as vacuum belts (36).
  8. Device according to one of the preceding claims, characterised in that some of the first belts (20) are driven by means of a first servo motor and some others of the first belts (20) are driven by means of a second servo motor.
  9. Device according to one of the preceding claims, characterised in that pressure rollers (48) which press the carton blank (4) against the second belts (32) adjoin the blocking device (18).
EP07000298A 2006-01-30 2007-01-09 Device for separating carton blanks Active EP1829805B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006005676A DE102006005676A1 (en) 2006-01-30 2006-01-30 Cut carton box sections separating device, has first belt driven directly by controlled drive to convey sections from stacked material

Publications (3)

Publication Number Publication Date
EP1829805A2 EP1829805A2 (en) 2007-09-05
EP1829805A3 EP1829805A3 (en) 2007-09-19
EP1829805B1 true EP1829805B1 (en) 2012-12-26

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EP07000298A Active EP1829805B1 (en) 2006-01-30 2007-01-09 Device for separating carton blanks

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EP (1) EP1829805B1 (en)
DE (1) DE102006005676A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2547473B1 (en) * 2014-04-03 2016-07-14 Comercial Industrial Maquinaria Cartón Ondulado, S.L. Introducing device for the supply of laminar bodies in a graphic printing station
EP3190072A1 (en) * 2016-01-11 2017-07-12 Hunkeler AG Separator for bookblocks
DE102017222316A1 (en) * 2017-12-08 2019-06-13 Koenig & Bauer Ag Substrate supply means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988017A (en) * 1975-03-20 1976-10-26 Lockheed Electronics Co., Inc. Workpiece feeding device
US4363478A (en) * 1979-07-23 1982-12-14 Yasuhiro Tsukasaki Method and apparatus of feeding corrugated boards
US5074539A (en) * 1990-09-11 1991-12-24 Ward Holding Company, Inc. Feeding sheets of corrugated paperboard
JPH08259017A (en) * 1995-03-27 1996-10-08 Isowa Corp Paper feeder for sheet material
DE19640963A1 (en) * 1996-10-04 1998-04-16 Wolfgang Heiber Preform feed mechanism for cartons
JP4000429B2 (en) * 1997-12-25 2007-10-31 株式会社タナベインターナショナル Blank sheet feeder
DE202005002085U1 (en) * 2005-02-10 2005-05-12 Rosas Wolf, David Feed and transport system for paper or cardboard carton blanks has indexing drive for feeding individual blanks from bottom of stack supported by feed conveyor onto transport conveyor

Also Published As

Publication number Publication date
DE102006005676A1 (en) 2007-08-09
EP1829805A3 (en) 2007-09-19
EP1829805A2 (en) 2007-09-05

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