EP0027527B1 - Magazine for flat carton blanks - Google Patents

Magazine for flat carton blanks Download PDF

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Publication number
EP0027527B1
EP0027527B1 EP80105182A EP80105182A EP0027527B1 EP 0027527 B1 EP0027527 B1 EP 0027527B1 EP 80105182 A EP80105182 A EP 80105182A EP 80105182 A EP80105182 A EP 80105182A EP 0027527 B1 EP0027527 B1 EP 0027527B1
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EP
European Patent Office
Prior art keywords
magazine
blanks
band
band conveyors
conveyors
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
EP80105182A
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German (de)
French (fr)
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EP0027527A1 (en
Inventor
Rolf-Hermann Sammet
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.)
Smurfit Kappa Herzberger Papierfabrik GmbH
Original Assignee
Herzberger Papierfabrik GmbH
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Publication date
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Application filed by Herzberger Papierfabrik GmbH filed Critical Herzberger Papierfabrik GmbH
Priority to AT80105182T priority Critical patent/ATE20014T1/en
Publication of EP0027527A1 publication Critical patent/EP0027527A1/en
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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
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/145—Feeding carton blanks from piles or magazines

Definitions

  • the invention relates to a magazine for flat packaging blanks which are advanced towards one end of the magazine with at least two belt conveyors arranged on opposite sides of the blanks, the spacing of which from one another is slightly smaller than the corresponding width of the blanks.
  • the packaging systems generally have a magazine into which a large number of packaging blanks are placed.
  • a magazine of the type mentioned in the opening paragraph is known from US-A-2 828 596.
  • the packaging blanks in this case formed by Skke are fed via two belt conveyors arranged on opposite sides, which clamp the packaging blanks between them.
  • the removal of the pre-conveyed packaging blanks takes place automatically with the aid of suction cups which grip the packaging blank arriving at the end of the magazine by suction.
  • the suction cups and the belt conveyors are arranged in the upper half of the packaging blanks. In order to ensure a flawless removal, which would be hindered by an inclined position of the blanks, the two opposite belt conveyors are driven together.
  • a step-by-step pre-conveying belt conveyor is provided in the bottom area of the packaging blanks.
  • the limit switches detect the arrival of the packaging blanks at the end of the magazine, the limit switch arranged at the top switching off the drive of the side belt conveyors when actuated by a packaging blank and the lower limit switch switching off the feed in the floor area.
  • a magazine for labels is known, in which the labels are advanced towards the end of the magazine by drivers which are attached to the belts on opposite sides and are attached to circulating belts. The belts rotating on both sides and carrying the drivers are driven together.
  • the drive is via a jack circuit.
  • a slip clutch is activated in each case in the drive axis for the coil spring, which serves to prevent the coil spring from being overloaded in the event that the removal is blocked. The slip clutches therefore serve as safeguards in the event of an accident.
  • the invention is based on the object of creating a magazine of the type mentioned in the introduction, in which an inclined position of the packaging blanks at the removal end of the magazine is avoided even at a high cycle speed of the removal device.
  • the belt conveyors are each assigned a stop and that the belt conveyors are individually deactivated between the belt conveyors at the end of the magazine in order to prevent the cutters from sloping when the stacking area assigned to the belt conveyor has a specific one on the assigned stop Exerts pressure exceeding contact pressure.
  • the stated object is achieved in that a stop is assigned to each of the belt conveyors and that each of the two belt conveyors is driven via its own slip clutch.
  • the two solutions mentioned are based on the fact that the drive for the two belt conveyors lying opposite one another can be influenced individually and that the influencing depends on the contact pressure of the Blank stack is controlled on the stop assigned to the respective belt conveyor.
  • the drive for the respective belt conveyor can be deactivated.
  • the belt conveyors are driven via their own slip clutches, as a result of which a constant conveying pressure is exerted on the stack of blanks when the contact pressure is exceeded. It is thereby achieved that the predetermined contact pressure is always maintained at the stops or is set again. This effectively prevents the blanks from sloping at the stops at the magazine end.
  • the stops are preferably designed as a frame or as a plurality of parts, stop parts being arranged approximately in the extension of the side of the belt conveyor which acts on the blanks. This arrangement offers a particular advantage when the belt conveyors essentially act on the corners of the blank. Each belt conveyor is then assigned a stop part, between which the blank can be pulled out of the magazine using the removal device.
  • the blanks should be removed from the magazine without interruption if possible.
  • the capacity of the magazines is therefore chosen to be relatively large.
  • the partially emptied magazines are usually refilled by hand.
  • the interruption of the removal process from the magazine during refilling can be avoided if the magazine is divided into two sections, of which the rear section which is not provided with the stops has its own belt conveyor which is driven via slip clutches and does not start the top of the section are arranged.
  • Replacing the blanks is made easier if there are at least two belt conveyors in the rear section of the magazine, one of which can be moved laterally to increase the distance between the belt conveyors.
  • the laterally movable belt conveyor is preferably designed to be laterally foldable. When opening or otherwise moving the belt conveyor on one side, the blanks can be added very easily since the rear section of the magazine is open at the top. By folding up or moving back the movable belt conveyor, the blanks are put under tension again and advanced in the manner described above.
  • the rear section of the magazine preferably has at least one belt conveyor in the floor area in addition to the lateral belt conveyors.
  • the belt conveyors are preferably formed by conveyor chains with which the exact distance between the belt conveyors can best be maintained.
  • the magazine 1 shown in the drawing is used for receiving blanks 2, which are removed vertically downwards after removal from the magazine with the aid of two conveyor belts 3 and inserted into receiving clamps 4 of a rotating wheel 5.
  • the front edge of the blanks 2 is gripped and bent on the peripheral surface of the wheel 5.
  • the front of a plurality of openings 6 of the blank 2 is pulled over a bottle neck from a plurality of bottles 7 conveyed in a row under the wheel 5.
  • the clamp 4 then opens and the blank is taken along by the pre-conveyed bottles 7.
  • Lateral pressure rollers 8 are used to hold the packaging, and a special folding device 9 is used to fold the bottom area.
  • the magazine 1 consists of a front section 11 and a rear section 12.
  • the front section 11 has four stop parts 13 on its end face, which form a stop 14.
  • the stop parts 13 hold the blank 2 conveyed against them on its top and bottom with a narrow area each, so that the blank 2 by suction (not shown) devices pulled against the conveyor belts 3 and thus can be transported vertically downwards.
  • suction not shown
  • two conveyor chains 1-5 each of which is driven by a slip clutch.
  • the slip clutch interrupts in a known manner the connection between a drive motor (not shown) and the respective conveyor chain 15 when a certain frictional force is exceeded, which is proportional to the pressing force of the blanks 2 against the stop parts 14.
  • a drive motor not shown
  • the inclination of the blank 2 means that there is too little supply pressure at one corner. But then the drive of the corresponding conveyor chain 15 is effective until the desired pressure is reached again, which means that the blank is again parallel to the stop 14 in one plane.
  • the rear magazine section 12 has two conveyor chains 16 in the bottom area and two conveyor chains 17, 18 on the long sides.
  • One of the conveyor chains 18 can be folded out laterally, so that blanks can be easily inserted into the rear magazine section 12, which is open at the top.
  • the conveyor chains 16, 17, 18 ensure that the blanks 2 are evenly advanced in the rear magazine section 12 and that a certain pressure is exerted on the blanks in the front magazine section 11. The feeding of the blanks 2 happens most smoothly when the rear magazine section 12 has not yet been completely emptied.
  • the magazine according to the invention enables the blanks 2 to be removed smoothly even at high packaging speeds.
  • the removal does not have to be interrupted when the blanks 2 are placed in the rear magazine section 12, so that a real continuous packaging operation is possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Basic Packing Technique (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

1. Magazine for flat packing blanks (2), which are transported by means of at least two band conveyors (15), arranged at opposite sides of the blanks (2) and being positioned at a distance between each other which is a little bit smaller than the corresponding width of the blanks (2), towards an end of the magazine, wherein the band conveyors (15) are operable in dependence of the transport operation, characterized in that a stop (14) each is related to the band conveyors (15) and that the band conveyors (15) are separately switched ineffective, in order to avoid an oblique position of the blanks (2) at the end of the magazine, when the stack section corresponding to the band conveyor (15) effects a force on the corresponding stop (14) which exerts a predetermined pressure force.

Description

Die Erfindung betrifft ein Magazin für flache Verpackungszuschnitte, die mit mindestens zwei an gegenüberliegenden Seiten der Zuschnitte angeordneten Bandförderern, deren Abstand voneinander um ein geringes Maß kleiner ist als die entsprechende Breite der Zuschnitte, gegen ein Ende des Magazins vorgefördert werden.The invention relates to a magazine for flat packaging blanks which are advanced towards one end of the magazine with at least two belt conveyors arranged on opposite sides of the blanks, the spacing of which from one another is slightly smaller than the corresponding width of the blanks.

Die Verpackung von Gegenständen erfolgt in modernen Betrieben weitgehend automatisch oder zumindest halbautomatisch. Die Verpackungsanlagen weisen im allgemeinen ein Magazin auf, in das eine Vielzahl von Verpackungszuschnitten eingelegt wird.In modern companies, objects are packaged largely automatically or at least semi-automatically. The packaging systems generally have a magazine into which a large number of packaging blanks are placed.

Ein Magazin der eingangs erwähnten Art ist aus der US-A-2 828 596 bekannt. Der Vorschub der in diesem Fall durch Säkke gebildeten Verpackungszuschnitte erfolgt über zwei an gegenüberliegenden Seiten angeordnete Bandförderer, die den Verpackungszuschnitt zwischen sich einklemmen. Die Entnahme der gegen das Ende des Magazins vorgeförderten Verpackungszuschnitte geschieht automatisch mit Hilfe von Saugnäpfen, die den am Ende des Magazins ankommenden Verpackungszuschnitt saugend ergreifen. Die Saugnäpfe sowie die Bandförderer sind in der oberen Hälfte der Verpackungszuschnitte angeordnet. Um eine einwandfreie Entnahme zu gewärhleisten, die durch eine Schrägstellung der Zuschnitte behindert würde, sind die beiden gegenüberliegenden Bandförderer gemeinsam angetrieben. Zur Unterstützung des kontinuierlichen Vorschubs der Verpackungszuschnitte durch die einander gegenüberliegenden Bandförderer ist ein schrittweise vorfördernder Bandförderer im Bodenbereich der Verpackungszuschnitte vorgesehen. Am Ende des Magazins sind zwei Endschalter angeordnet, von denen der eine etwa in Höhe der beiden seitlichen Bandförderer und der andere nahe dem Bodenbereich angeordnet ist. Die Endschalter detektieren die Ankunft der Verpackungszuschnitte am Ende des Magazins, wobei der oben angeordnete Endschalter den Antrieb der seitlichen Bandförderer ausschaltet, wenn er durch einen Verpackungszuschnitt betätigt wird und der untere Endschalter den Voschub im Bodenbereich ausschaltet.A magazine of the type mentioned in the opening paragraph is known from US-A-2 828 596. The packaging blanks in this case formed by Säkke are fed via two belt conveyors arranged on opposite sides, which clamp the packaging blanks between them. The removal of the pre-conveyed packaging blanks takes place automatically with the aid of suction cups which grip the packaging blank arriving at the end of the magazine by suction. The suction cups and the belt conveyors are arranged in the upper half of the packaging blanks. In order to ensure a flawless removal, which would be hindered by an inclined position of the blanks, the two opposite belt conveyors are driven together. To support the continuous feeding of the packaging blanks by the belt conveyors lying opposite one another, a step-by-step pre-conveying belt conveyor is provided in the bottom area of the packaging blanks. At the end of the magazine there are two limit switches, one of which is located approximately at the level of the two side belt conveyors and the other close to the floor area. The limit switches detect the arrival of the packaging blanks at the end of the magazine, the limit switch arranged at the top switching off the drive of the side belt conveyors when actuated by a packaging blank and the lower limit switch switching off the feed in the floor area.

Durch die DE-A-2 202 525 ist ein Magazin für Etiketten bekannt, bei dem die Etiketten durch auf gegenüberliegenden Seiten in den Etikettenstapel einfahrende, an umlaufenden Bändern befestigte Mitnehmer gegen das Ende des Magazins vorgefördert werden. Die auf beiden Seiten umlaufenden und die Mitehmer tragenden Bänder werden gemeinsam angetrieben. Der Antrieb erfolgt über eine Klinkenschaltung. Um bei diesem Antrieb einen möglichst gleichmäßigen Druck auf die Etikettenstapel auszuüben, wird die Kraftübertragung auf das Band mit Hilfe von Spiralfedern vorgenommen, die den diskontinuierlichen Vorschub ausgleichen. In die Antriebsachse für die Spiralfeder ist jeweils eine Rutschkupplung eingeschaltet, die dazu dient, im Falle eines Blockierens der Entnahme eine Überlastung der Spiralfeder zu verhindern. Die Rutschkupplungen dienen daher als Sicherungen für den Störfall.From DE-A-2 202 525 a magazine for labels is known, in which the labels are advanced towards the end of the magazine by drivers which are attached to the belts on opposite sides and are attached to circulating belts. The belts rotating on both sides and carrying the drivers are driven together. The drive is via a jack circuit. In order to exert as uniform a pressure on the label stacks as possible with this drive, the force is transferred to the tape with the help of spiral springs which compensate for the discontinuous feed. A slip clutch is activated in each case in the drive axis for the coil spring, which serves to prevent the coil spring from being overloaded in the event that the removal is blocked. The slip clutches therefore serve as safeguards in the event of an accident.

Die Magazine der eingangs erwähnten Art arbeiten zufriedenstellend, wenn keine große Verpackungsgeschwindigkeit in der Verpackungsvorrichtung vorgesehen ist, so daß die Anzahl der entnommenen Verpackungen pro Zeiteinheit nich zu groß ist. Wenn jedoch eine höhere Verpackungsgeschwindigkeit und damit ein rationelleres Verpacken erreicht werden soll, treten bei den herkömmlichen Magazinen Schwierigkeiten auf. Da für das Entnehmen des einzelnen Zuschnitts aus dem Magazin nur noch sehr wenig Zeit zur Verfügung steht, kommt es zu Störungen, wenn der Zuschnitt nicht exakt an dem Anschlag anliegt. In diesen Fällen kann es geschehen, daß die Sauger keinen Zuschnitt ergreifen und daher kein Zuschnitt in die Verpackungsvorrichtung eingefahren wird. In diesem Fall müssen beispielsweise nicht verpackte Flaschen aussortiert werden. Bei vollautomatischen Vorrichtungen kann es darüber hinaus vorkommen, daß nicht verpackte Flaschen den weiteren Ablauf stören und ggf. zerbrechen, wenn nicht besondere Vorsichtsmaßnahmen getroffen worden sind.The magazines of the type mentioned at the outset work satisfactorily if there is no high packaging speed in the packaging device, so that the number of packages removed per unit of time is not too great. If, however, a higher packaging speed and thus a more efficient packaging are to be achieved, difficulties arise with the conventional magazines. Since there is very little time available for removing the individual blank from the magazine, faults occur if the blank does not lie exactly against the stop. In these cases it can happen that the suction cups do not take a blank and therefore no blank is inserted into the packaging device. In this case, for example, bottles that have not been packed must be sorted out. In the case of fully automatic devices, it can also happen that bottles that have not been packaged interfere with the further process and break if necessary, unless special precautionary measures have been taken.

Es hat sich gezeigt, daß bei der auf Einklemmen der Verpackungszuschnitte beruhenden Fördermethode mittels einander gegenüberliegenden Förderbändern auch bei deren völlig synchronem Antrieb eine Schrägstellung der Verpackungszuschnitte zwischen den beiden Bandförderern auftritt, so daß schräggestellte Verpackungszuschnitte am Ende des Magazins ankommen. Diese werden von den Saugern nicht sicher ergriffen, so daß es zu den genannten Störungen kommen kann.It has been shown that in the conveying method based on jamming of the packaging blanks by means of opposing conveyor belts, even with their completely synchronous drive, an inclined position of the packaging blanks occurs between the two belt conveyors, so that inclined packaging blanks arrive at the end of the magazine. These are not safely gripped by the suction cups, so that the above-mentioned faults can occur.

Der Erfindung liegt die Aufabe zugrunde, ein Magazin der eingangs erwähnten Art zu erstellen, bei dem eine Schrägstellung der Verpackungszuschnitte am Entnahmeende des Magazins auch bei hoher Taktgeschwindigkeit der Entnahmevorrichtung vermieden wird.The invention is based on the object of creating a magazine of the type mentioned in the introduction, in which an inclined position of the packaging blanks at the removal end of the magazine is avoided even at a high cycle speed of the removal device.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß den Bandförderern jeweils ein Anschlag zugeordnet ist und daß die Bandförderer zur Vermeidung einer Schrägstellung der Zuschnitter am Ende des Magazins zwischen den Bandförderern einzeln unwirksam geschaltet werden, wenn der dem Bandförderer zugeordnete Stapelbereich auf den zugeordneten Anschlag eine einen bestimmten Anpreßdruck übersteigende Kraft ausübt.This object is achieved in that the belt conveyors are each assigned a stop and that the belt conveyors are individually deactivated between the belt conveyors at the end of the magazine in order to prevent the cutters from sloping when the stacking area assigned to the belt conveyor has a specific one on the assigned stop Exerts pressure exceeding contact pressure.

Die genannte Aufgabe wird in einer alternativen Ausführungsform dadurch gelöst, daß den Bandförderern jeweils ein Anschlag zugeordnet ist und daß jeder der beiden Bandförderer über eine eigene Rutschkupplung angetrieben wird.In an alternative embodiment, the stated object is achieved in that a stop is assigned to each of the belt conveyors and that each of the two belt conveyors is driven via its own slip clutch.

Die beiden genannten Lösungen beruhen darauf, daß der Antrieb für die beiden einander gegenüberliegenden Bandförderer einzeln beeinflußt werden kann und daß die Beeinflussung in Abhängigkeit von dem Anpreßdruck des Zuschnittstapels auf den dem jeweiligen Bandförderer zugeordneten Anschlag gesteuert wird.The two solutions mentioned are based on the fact that the drive for the two belt conveyors lying opposite one another can be influenced individually and that the influencing depends on the contact pressure of the Blank stack is controlled on the stop assigned to the respective belt conveyor.

Dabei kann beim Erreichen eines bestimmten Anpreßdrucks der Antrieb für den jeweiligen Bandförderer unwirksam geschaltet werden. In der alternativen Ausführungsform, die sich konstruktiv sehr einfach realisieren läßt, werden die Bandförderer über eigene Rutschkupplungen angetrieben, wodurch beim Übersteigen des Anpreßdrucks auf den Zuschnittstapel ein konstanter Förderdruck ausgeübt wird. Dadurch wird erreicht, daß an den Anschlägen immer der vorbestimmte Anpreßdruck erhalten bleibt bzw. wieder eingestellt wird. Auf diese Weise wird eine Schrägstellung der Zuschnitte an den Anschlägen am Magazinende wirksam verhindert.When a certain contact pressure is reached, the drive for the respective belt conveyor can be deactivated. In the alternative embodiment, which can be implemented very easily in terms of construction, the belt conveyors are driven via their own slip clutches, as a result of which a constant conveying pressure is exerted on the stack of blanks when the contact pressure is exceeded. It is thereby achieved that the predetermined contact pressure is always maintained at the stops or is set again. This effectively prevents the blanks from sloping at the stops at the magazine end.

Für in sich nicht sehr stabile Zuschnitte ist es vorteilhaft, vier Bandförderer vorzusehen, die die Zuschnitte im Bereich deren Ecken beaufschlagen. Dabei sind auf den gegenüberliegenden Seiten jeweils zwei Bandförderer vorgesehen. Es ist aber auch möglich, die Bandförderer so anzuordnen, daß auf jeder Seite des Zuschnitts ein Bandförderer angeordnet ist und die einander gegenüberliegenden Bandförderer einen estwas geringeren Abstand voneinander aufweisen als die entsprechende Länge des Zuschnitts.For blanks which are not very stable in themselves, it is advantageous to provide four belt conveyors which act on the blanks in the area of their corners. Two belt conveyors are provided on the opposite sides. However, it is also possible to arrange the belt conveyors in such a way that a belt conveyor is arranged on each side of the blank and the belt conveyors lying opposite one another are somewhat less apart than the corresponding length of the blank.

Vorzugsweise sind die Anschläge als ein Rahmen oder als mehrere Teile ausgebildet, wobei Anschlagteile etwa in der Verlängerung der die Zuschnitte beaufschlagenden Seite der Bandförderer angeordnet sind. Diese Anordnung bietet einen besonderen Vorteil, wenn die Bandförderer im wesentlichen auf die Ekken des Zuschnitts einwirken. Jedem Bandförderer ist dann ein Anschlagteil zugeordnet, zwischen denen der Zuschnitt mit Hilfe der Entnahmevorrichtung aus dem Magazin gezogen werden kann.The stops are preferably designed as a frame or as a plurality of parts, stop parts being arranged approximately in the extension of the side of the belt conveyor which acts on the blanks. This arrangement offers a particular advantage when the belt conveyors essentially act on the corners of the blank. Each belt conveyor is then assigned a stop part, between which the blank can be pulled out of the magazine using the removal device.

Zur Erzielung eines hohen Wirkungsgrades der Verpackungsmaschine soll die Entnahme der Zuschnitte aus dem Magazin möglichst ohne Unterbrechung erfolgen. Die Kapazität der Magazine wird daher relativ groß gewählt. Das Nachfüllen der teilweise geleerten Magazine erfolgt üblicherweise von Hand. Bei den bekannten Magazinen ist es erforderlich, die Entnahme zu unterbrechen, d.h. die Verpackungsmaschine anzuhalten, um das Magazin wieder aufzufüllen. In einer weiteren vorteilhaften Ausgestaltung der Erfindung kann die Unterbrechung des Entnahmevorganges aus dem Magazin beim Nachfüllen vermieden werden, wenn das Magazin in zwei Abschnitte unterteilt ist, von denen der nicht mit den Anschlägen versehene hintere Abschnitt eigene Bandförderer aufweist, die über Rutschkupplungen angetrieben und nicht an der Oberseite des Abschnittes angeordnet sind. Durch die Unterteilung des Magazins in zwei Abschnitte können in dem hinteren Abschnitt Zuschnitte nachgelegt werden, ohne daß dies auf den vorderen Abschnitt eine Auswirkung hat, da die Zuschnitte aus dem hinteren Abschnitt durch den Antrieb über die Rutschkupplungen sehr schnell wieder gegen die vorderen Zuschnitte mit dem erforderlichen Druck anliegen.In order to achieve a high efficiency of the packaging machine, the blanks should be removed from the magazine without interruption if possible. The capacity of the magazines is therefore chosen to be relatively large. The partially emptied magazines are usually refilled by hand. In the known magazines it is necessary to interrupt the removal, i.e. stop the packaging machine to refill the magazine. In a further advantageous embodiment of the invention, the interruption of the removal process from the magazine during refilling can be avoided if the magazine is divided into two sections, of which the rear section which is not provided with the stops has its own belt conveyor which is driven via slip clutches and does not start the top of the section are arranged. By dividing the magazine into two sections, blanks can be added in the rear section without this having any effect on the front section, since the blanks from the rear section are very quickly pushed back against the front blanks by the drive via the slip clutches pressure required.

Das Nachlegen der Zuschnitte wird erleichtert, wenn im hinteren Abschnitt des Magazins mindestens zwei Bandförderer vorhanden sind, von denen einer zur Vergrößerung des Abstandes zwischen den Bandförderern seitlich bewegbar ist. Vorzugsweise ist der seitlich bewegbare Bandförderer seitlich klappbar ausgebildet. Beim Aufklappen oder sonstigen seitlichen Bewegen des auf der einen Seite befindlichen Bandförderers lassen sich die Zuschnitte sehr leicht nachlegen, da der hintere Abschnitt des Magazins oben offen ist. Durch das Heranklappen bzw. Zurückfahren des bewegbaren Bandförderers werden die Zuschnitte wieder unter Spannung gesetzt und in der oben beschriebenen Weise vorgefördert.Replacing the blanks is made easier if there are at least two belt conveyors in the rear section of the magazine, one of which can be moved laterally to increase the distance between the belt conveyors. The laterally movable belt conveyor is preferably designed to be laterally foldable. When opening or otherwise moving the belt conveyor on one side, the blanks can be added very easily since the rear section of the magazine is open at the top. By folding up or moving back the movable belt conveyor, the blanks are put under tension again and advanced in the manner described above.

Der hintere Abschnitt des Magazins weist vorzugsweise neben den seitlichen Bandförderern mindestens einen Bandförderer im Bodenbereich auf. Dadurch ist es auch bei schwächeren Zuschnitten möglich, mit einem seitlichen Bandförderer pro Längsseite des Magazins auszukommen und einen einwandfreien Vorschub zu gewährleisten.The rear section of the magazine preferably has at least one belt conveyor in the floor area in addition to the lateral belt conveyors. As a result, even with weaker cuts, it is possible to get by with one side belt conveyor on each long side of the magazine and to ensure perfect feed.

Die Bandförderer sind vorzugsweise durch Förderketten gebildet, mit denen sich am besten der genaue Abstand zwischen den Bandförderern einhalten läßt.The belt conveyors are preferably formed by conveyor chains with which the exact distance between the belt conveyors can best be maintained.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und soll im folgenden näher erläutert werden.An embodiment of the invention is shown in the drawing and will be explained in more detail below.

Das in der Zeichnung dargestellte Magazin 1 dient zur Aufnahme von Zuschnitten 2, die nach der Entnahme aus dem Magazin mit Hilfe von zwei Förderbändern 3 vertikal nach unten abgeführt und in Aufnahmeklemmen 4 eines rotierenden Rades 5 eingeschoben werden. Dort wird die Vorderkante der Zuschnitte 2 ergriffen und auf der Umfangsfläche des Rades 5 umgebogen. Dabei wird die vordere von mehreren Öffnungen 6 des Zuschnittes 2 über einen Flaschenhals aus einer Vielzahl von in einer Reihe unter dem Rad 5 hindurch geförderten Flaschen 7 gezogen. Daraufhin öffnet sich die Klemme 4 und der Zuschnitt wird durch die vorgeförderten Flaschen 7 mitgenommen. In späteren, nur schematisch angedeuteten Verfahrensschritten wird der Zuschnitt gefaltet und im Bodenbereich verklebt. Zum Halten der Verpackung dienen seitliche Andruckrollen 8 und zum Falten des Bodenbereichs eine spezielle Faltvorrichtung 9. Vor dem Aufziehen des Zuschnittes 2 auf die Flaschen 7 werden diese durch Einzelglieder 10 gegen ein Drehen auf dem Transportband gesichert, so daß eine ggfs. erforderliche Ausrichtung des Etiketts jeder Flasche 7 in der Verpackung eingehalten wird. Das Magazin 1 besteht aus einem vorderen Abschnitt 11 und einem hinteren Abschnitt 12. Der vordere Abschnitt 11 weist an seiner Stirnseite vier Anschlagteile 13 auf, die einen Anschlag 14 bilden. Die Anschlagteile 13 halten den gegen sie geförderten Zuschnitt 2 an dessen Ober- und Unterseite mit je einem schmalen Bereich, so daß der Zuschnitt 2 durch (nicht dargestellte) Saugvorrichtungen gegen die Förderbänder 3 gezogen und damit vertikal nach unten abtransportiert werden kann. Etwa mit den Anschlagteilen 13 fluchten an den beiden Längsseiten des vorderen Magazinabschnitts 11 je zwei Förderketten 1-5, die über jeweils eine Rutschkupplung angetrieben werden. Die Rutschkupplung unterbricht in bekannter Weise die Verbindung zwischen einem (nicht gezeigten) Antriebsmotor und der jeweiligen Förderkette 15, wenn eine bestimmte Reibungskraft überschritten wird, die proportional zu der Andruckkraft der Zuschnitte 2 an die Anschlagteile 14 ist. Sobald sich ein kurz vor den Anschlagteilen 13 befindlicher Zuschnitt nich mehr in der parallel zu dem Anschlag liegenden Ebene, beispielsweise mit einer Ecke, befindet, wird diese Fehlstellung sofort korrigiert. Die Schrägstellung des Zuschnittes 2 bedeutet nämlich, daß an einer Ecke ein zu geringer Nachschubdruck vorhanden ist. Dann aber ist der Antrieb der entsprechenden Förderkette 15 wirksam, bis der gewünschte Druck wieder erreicht ist, was bedeutet, daß der Zuschnitt wieder in einer Ebene parallel zu dem Anschlag 14 steht.The magazine 1 shown in the drawing is used for receiving blanks 2, which are removed vertically downwards after removal from the magazine with the aid of two conveyor belts 3 and inserted into receiving clamps 4 of a rotating wheel 5. There the front edge of the blanks 2 is gripped and bent on the peripheral surface of the wheel 5. The front of a plurality of openings 6 of the blank 2 is pulled over a bottle neck from a plurality of bottles 7 conveyed in a row under the wheel 5. The clamp 4 then opens and the blank is taken along by the pre-conveyed bottles 7. In later, only schematically indicated process steps, the blank is folded and glued in the bottom area. Lateral pressure rollers 8 are used to hold the packaging, and a special folding device 9 is used to fold the bottom area. Before the blank 2 is pulled onto the bottles 7, they are secured against rotation on the conveyor belt by individual members 10, so that the label may have to be aligned each bottle 7 is observed in the packaging. The magazine 1 consists of a front section 11 and a rear section 12. The front section 11 has four stop parts 13 on its end face, which form a stop 14. The stop parts 13 hold the blank 2 conveyed against them on its top and bottom with a narrow area each, so that the blank 2 by suction (not shown) devices pulled against the conveyor belts 3 and thus can be transported vertically downwards. For example, with the stop parts 13 on the two long sides of the front magazine section 11, two conveyor chains 1-5, each of which is driven by a slip clutch. The slip clutch interrupts in a known manner the connection between a drive motor (not shown) and the respective conveyor chain 15 when a certain frictional force is exceeded, which is proportional to the pressing force of the blanks 2 against the stop parts 14. As soon as a blank located just before the stop parts 13 is no longer in the plane lying parallel to the stop, for example with a corner, this incorrect position is corrected immediately. The inclination of the blank 2 means that there is too little supply pressure at one corner. But then the drive of the corresponding conveyor chain 15 is effective until the desired pressure is reached again, which means that the blank is again parallel to the stop 14 in one plane.

Der hintere Magazinabschnitt 12 weist zwei Förderketten 16 im Bodenbereich und zwei Förderketten 17, 18 an den Längsseiten auf. Eine der Förderketten 18 ist seitlich ausklappbar, so daß in den nach oben offenen hinteren Magazinabschnitt 12 leicht Zuschnitte eingelegt werden können. In der Arbeitsstellung bewirken die Förderketten 16, 17, 18, daß auch im hinteren Magazinabschnitt 12 ein gleichmäßiges Vorfördern der Zuschnitte 2 erfolgt und ein gewisser Druck auf die im vorderen Magazinabschnitt 11 befindlichen Zuschnitte ausgeübt wird. Das Nachlegen der Zuschnitte 2 geschieht am reibungslosesten dann, wenn der hintere Magazinabschnitt 12 noch nicht vollständig geleert ist.The rear magazine section 12 has two conveyor chains 16 in the bottom area and two conveyor chains 17, 18 on the long sides. One of the conveyor chains 18 can be folded out laterally, so that blanks can be easily inserted into the rear magazine section 12, which is open at the top. In the working position, the conveyor chains 16, 17, 18 ensure that the blanks 2 are evenly advanced in the rear magazine section 12 and that a certain pressure is exerted on the blanks in the front magazine section 11. The feeding of the blanks 2 happens most smoothly when the rear magazine section 12 has not yet been completely emptied.

Durch das erfindungsgemäße Magazin kann auch bei hohen Verpackungsgeschwindigkeiten eine reibungslose Entnahme der Zuschnitte 2 durchgeführt werden. Die Enthahme muß beim Nachlegen der Zuschnitte 2 in den hinteren Magazinabschnitt 12 nicht unterbrochen werden, so daß ein echter kontinuierlicher Verpackungsbetrieb möglich ist.The magazine according to the invention enables the blanks 2 to be removed smoothly even at high packaging speeds. The removal does not have to be interrupted when the blanks 2 are placed in the rear magazine section 12, so that a real continuous packaging operation is possible.

Claims (10)

1. Magazine for flat packing blanks (2), which are transported by means of at least two band conveyors (15), arranged at opposite sides of the blanks (2) and being positioned at a distance between each other which is a little bit smaller than the corresponding width of the blanks (2), towards an end of the magazine, wherein the band conveyors (15) are operable in dependence of the transport operation, characterized in that a stop (14) each is related to the band conveyors (15) and that the band conveyors (15) are separately switched ineffective, in order to avoid an oblique position of the blanks (2) at the end of the magazine, when the stack section corresponding to the band conveyor (15) effects a force on the corresponding stop (14) which exerts a predetermined pressure force.
2. Magazine for flat packing blanks which are transported by means of at least two band conveyors (15), arranged at opposite sides of the blanks (2) and being positioned with a distance between each other which is a little bit smaller than the corresponding width of the blanks (2), towards an end of the magazine, characterized in that a stop is related to each band conveyor (15) and that each of both band conveyors (15) is driven through an own friction clutch.
3. Magazine according to claim 1 or 2, characterized in that four band conveyors (15) are provided for which are effective on the blanks (2) in the region of their corners.
4. Magazine according to one of the claims 1 to 3, characterized in that the band conveyors (15) are positioned on each side of the blanks (2) and that the distance between the band conveyors (15) being opposite to each other is a little bit smaller than the corresponding length of the blanks (2).
5. Magazine according to one of the claims 1 to 4, characterized in that the stops (14) are formed as a frame or as a multiple of parts and that stop sections (13) are essentially positioned in a projection of that side of the band conveyors (15) being effective on the blanks (2).
6. Magazine according to one of the claims 1 to 5, characterized in that the magazine consists of two sections (11, 12), the rear section (12) of which not being provided with a stop (14) has own band conveyors (16,17,18) which are driven through friction clutches and not positioned on the top side of the section (12).
7. Magazine according to claim 6, characterized in that at least two lateral band conveyors (17, 18) are provided for, one of which (18) is laterally movable in order to enlarge the distance between the band conveyors (17, 18).
8. Magazine according to claim 7, characterized in that the laterally movable band conveyor (18) is laterally pivotable.
9. Magazine according to one of the claims 6 to 8, characterized in that the rear section (12) of the magazine (1) is provided with at least one band conveyor (16) at the bottom side in addition to the lateral band conveyors (17, 18).
10. Magazine according to one of the claims 1 to 9, characterized in that conveyor chains are used as band conveyors (15, 16, 17, 18).
EP80105182A 1979-10-19 1980-08-30 Magazine for flat carton blanks Expired EP0027527B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105182T ATE20014T1 (en) 1979-10-19 1980-08-30 MAGAZINE FOR FLAT PACKAGING BLANKS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2942255A DE2942255C2 (en) 1979-10-19 1979-10-19 Magazine for feeding flat blanks to packaging machines
DE2942255 1979-10-19

Publications (2)

Publication Number Publication Date
EP0027527A1 EP0027527A1 (en) 1981-04-29
EP0027527B1 true EP0027527B1 (en) 1986-05-28

Family

ID=6083836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105182A Expired EP0027527B1 (en) 1979-10-19 1980-08-30 Magazine for flat carton blanks

Country Status (3)

Country Link
EP (1) EP0027527B1 (en)
AT (1) ATE20014T1 (en)
DE (2) DE2942255C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5565893A (en) * 1993-05-07 1996-10-15 Canon Kabushiki Kaisha Coordinate input apparatus and method using voltage measuring device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2828596A (en) * 1954-03-09 1958-04-01 Spencer Chem Co Automatic bag opening machine
DE1237506B (en) * 1966-03-26 1967-03-23 Telefunken Patent Device for stacking rectangular, flat mail items in an empty intermediate stacker
DE2202525C2 (en) * 1972-01-20 1984-01-19 Jagenberg-Werke AG, 4000 Düsseldorf Labelling machine magazine refilling mechanism - has endless conveyor belt temporarily accelerated as carrier dogs engage new label stack
GB1440924A (en) * 1972-10-31 1976-06-30 Schmermund A Sheet feeding arrangement

Also Published As

Publication number Publication date
EP0027527A1 (en) 1981-04-29
DE2942255A1 (en) 1981-04-30
ATE20014T1 (en) 1986-06-15
DE3071614D1 (en) 1986-07-03
DE2942255C2 (en) 1981-12-24

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