EP0856396B1 - Flexible device for forming carton blanks - Google Patents

Flexible device for forming carton blanks Download PDF

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Publication number
EP0856396B1
EP0856396B1 EP97100996A EP97100996A EP0856396B1 EP 0856396 B1 EP0856396 B1 EP 0856396B1 EP 97100996 A EP97100996 A EP 97100996A EP 97100996 A EP97100996 A EP 97100996A EP 0856396 B1 EP0856396 B1 EP 0856396B1
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EP
European Patent Office
Prior art keywords
suction
fact
uprighting
blanks
cardboard
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
EP97100996A
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German (de)
French (fr)
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EP0856396A1 (en
Inventor
Heinz F. Odenthal
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.)
Syntegon Packaging Systems AG
Original Assignee
SIG Pack Systems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SIG Pack Systems AG filed Critical SIG Pack Systems AG
Priority to AT97100996T priority Critical patent/ATE246594T1/en
Priority to DE59710539T priority patent/DE59710539D1/en
Priority to EP97100996A priority patent/EP0856396B1/en
Priority to CA002211056A priority patent/CA2211056A1/en
Priority to US08/951,040 priority patent/US5924968A/en
Publication of EP0856396A1 publication Critical patent/EP0856396A1/en
Application granted granted Critical
Publication of EP0856396B1 publication Critical patent/EP0856396B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/062—Feeding sheets or blanks from stacks from the underside of a magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls

Definitions

  • the invention relates to a system for erecting Cardboard blanks - with machine frame, at least one Magazine slot for a stack of cardboard blanks, a take-off device with which the cardboard blanks in succession are individually peelable from the stack, and one Transport device, which the removed from the stack Cardboard blanks and a device for erecting feeds the carton blanks with the trigger device as a vacuum device to which vacuum can be applied is formed, wherein the transport device is an endless conveyor with parallel and spaced apart Has tension elements, and wherein the magazine shaft above and the trigger below Transport device are arranged.
  • cardboard blanks are all common types of cards, such as full cards, e-wave, B-wave, and the like can be used.
  • a system with the features described is from EP-A-0 164 585 known.
  • To ensure the transport of the Cardboard blanks are driver fingers on the endless conveyor arranged.
  • the correct alignment of the cardboard blanks for the subsequent erection process is by parallel aligned guide rails guaranteed, which are attached to the machine frame.
  • the magazine shaft is oriented obliquely downwards, and the suction device is by rotating against the bottom Carton blank of the stack movable.
  • the trigger device from a gripper that cuts the cardboard blanks on the top or Underside of the stack, a swivel and / or Executes transverse movement and the recorded Cardboard blanks on a side or bottom Transport device, which has drivers, stores.
  • the kinematics are relatively complex and their constructive Implementation mechanically complex. It is not possible, different formats of cardboard blanks in Manipulate change. Finally, the accessibility the magazine shafts in need of improvement.
  • the invention has for its object a flexible system of the type described at the outset characterized by a particularly simple kinematics, thereby high performance enables and without further ado System changes can be adjusted.
  • Magazine slot is aligned vertically and at its lower, open-ended end edge-side contact surfaces for the stack has that the tension elements in The upper run of the endless conveyor is guided over suction boxes and the carton blanks moved by the transport device under the effect of one generated in the suction boxes Negative pressure on the tension elements, and that the suction device in the longitudinal axis of the magazine shaft movable up and down and against the on Supporting areas of the lower carton blank of the stack is movable and this under suction between the Subtracts down and continuously on the moving endless conveyor.
  • the invention uses the realization that the cardboard blanks are elastically deformable are due to this elasticity and accordingly sufficient traction by a smaller, from limited opening at the bottom of the shaft can be deducted.
  • the suction device only leads a short stroke and lifts it by suction peeled cardboard blank on the tension elements from the endless conveyor, with the smallest possible distance below the Magazine shaft is arranged. Because the suction device only small vertical strokes are short Cycle times attainable. It also results in a more compact one Construction of the plant. Finally, it is advantageous that the Magazine shaft is freely accessible on the top and sides.
  • the suction device preferably has a linear one Actuating device, for example cylinder / piston arrangement, connected suction head with several suction cups.
  • a control device which controls the Suction cups during the upward movement of the piston with vacuum acted upon and the suction cups during the downward movement when depositing the cardboard blank on the endless conveyor ventilated.
  • the contact surfaces expediently consist of support strips or support blocks that are adjustable on the machine frame are attached.
  • the adjustment of the support slats or support blocks only occurs when the format is changed.
  • the magazine shaft preferably has an attachment that detachable on the machine frame by means of a plug connection is held. When changing the format, the attachment can easily be replaced.
  • the tension elements Possibilities. It is essential that the cardboard blanks are supported and the negative pressure generated in the suction boxes lies against the cardboard blanks and this thereby on the Tension elements fixed. Perforated tapes are suitable, for example and the same. According to a preferred embodiment of the Invention, the tension elements each consist of a pair cords arranged parallel to each other, the lateral one Distance between the cords essentially the width of the Suction boxes corresponds.
  • the invention teaches that a A plurality of magazine slots with assigned, identical trained suction devices in the direction of transport Endless conveyor are arranged one behind the other. Cardboard blanks can alternate from the one behind the other arranged magazine shafts can be removed. from that there are numerous practical advantages. That's the way it is possible to cut the cardboard with an even shorter time sequence on the tape by the Work cycles of the suction devices corresponding to one another be coordinated. There is also the possibility of Magazine slots with different cardboard cuts load, be it that the cardboard blanks with different prints are provided and / or have different formats. In any one the cardboard blanks from the given order Magazine slots are requested. This enables one very flexible operation of the system. In the further course the cardboard blanks into the erector station transported. Since the tension elements (transport belts) with a constant speed is a safe contact with the centering device of the Format tool guaranteed. Accordingly, the Precision of the erector ensured.
  • the device for erecting the cardboard blanks has usually a linear punch drive, preferably via servo-driven linear axes, with up and down movable erection stamp and one with the Raising stamp interacting format tool.
  • the scope of the invention is to select the punch drive to be arranged above or below the transport device, whereby flexible adjustments to the system according to the invention System changes are possible.
  • To manipulate The invention teaches container blanks that the linear Stamp drive above the transport device and that Format tool, which with the erection stamp cooperates, arranged below the transport device is. If the erection stamp is used to hold primary packaged products, e.g. filled plastic bags and the like can be set up in one operation of the container and the introduction of packaging goods in one Operation.
  • the invention teaches that the linear Stamp drive below the transport device and that Format tool arranged above the transport device is. There is a turning when straightening the lid blanks not necessary anymore. Furthermore, the lid on a Point that corresponds to the height of the cover, so that the lid on a container without an intermediate stroke can be put on.
  • the erection stamp as well as the Format tools preferably have adjustable surfaces and can automatically start according to a control program different formats can be adapted.
  • the invention teaches that a Gluing device along the transport route of the Endless conveyor between the magazine shaft and the Device for erecting the cardboard blanks provided is. Since the endless conveyor with preferably constant and compared to conventional low-speed systems is very uniform Gluing at the designated places of the Packaging cuts possible.
  • the system according to the invention is characterized by a compact structure. It allows high performance, so manipulating a large number of blanks per Unit of time at a relatively low transport speed of the endless conveyor. The high performance is achievable by a small stroke of the trigger device, if necessary in connection with a plurality of more coordinated with respect to the work cycle Magazine compartments.
  • the system according to the invention allows Manipulation of blanks with large blanking tolerances, whereby curved curved blanks are also processed can be. Large-format cuts can also be made handle.
  • the system according to the invention is flexibly adaptable with system changes, allows a quick format change and also enables the simultaneous processing of several Formats that can be made from different devices without retrofitting the device Magazine slots are deducted. There are special advantages compared to the state of the art Manipulation of lid blanks.
  • the system or device shown in the figures comprises several vertical magazine shafts 1 for one each Stack 2 of cardboard blanks 3, the magazine slots 1 assigned trigger devices 4 with which the Cardboard blanks 3 one by one from the stack 2 are removable, and a transport device 5, which the the stacks 2 removed cardboard blanks 3 and a device 6 for erecting the cardboard blanks in also called the erection station.
  • the described aggregates are in a common Machine frame 7 housed.
  • the transport device 5 has an endless conveyor 8 parallel and spaced apart tension elements 9, with the tension elements 9 in the upper strand of the Endless conveyor are guided over suction boxes 10.
  • the one from the Transport device 5 moving cardboard blanks 3 lie under the effect of one generated in the suction boxes 10 Negative pressure on the tension elements 9.
  • the magazine slots 1 are arranged above the transport device 5 and point at their lower, open-ended end Contact surfaces 11 for the stack.
  • the trigger devices 4 are arranged below the transport device 5 and have one in the longitudinal axis of the assigned magazine slot 1 moving up and down and with vacuum acted upon suction device 12 against the on Contact surfaces 11 resting lower carton blank 3 of the Stack 2 is movable and this under suction between the contact surfaces 11 downward from the magazine shaft 1 deducts as well as on the continuously moving endless conveyor 8 drops.
  • Fig. 2 shows that the Suction devices 12 one to a cylinder / piston arrangement connected suction head 13 with several suction cups 14 exhibit.
  • the suction head 13 is a not shown Control device connected, the suction cups 14th during the upward movement of the piston with vacuum acted upon and the suction cups during the downward movement when depositing the cardboard blank 3 on the endless conveyor 8 ventilated.
  • the contact surfaces 11 of the magazine shafts consist of Support strips or support blocks, which are preferred are adjustably attached to the machine frame 7.
  • the Magazine chute 1 each have an attachment 15, which means a connector detachably held on the machine frame 7 and is exchanged when the format changes.
  • FIGS. 1 and 3 a comparative analysis of FIGS. 1 and 3 reveals that the tension elements 9 each consist of a pair cords 16 arranged parallel to each other, wherein the lateral distance between the cords essentially corresponds to the width of the suction boxes 10.
  • the lifting station 6 has a lifting head, which the supplied carton blanks optionally in an opening and Erect downward movement.
  • a wrap-around is also ideal System can be used.
  • This embodiment of the invention is suitable especially for manipulating lid blanks.
  • the stamp drive 17 also above Transport device 5 and the format tool 19 below the transport device 5 can be arranged.
  • Fig. 3 shows that to the endless conveyor 8 in Area of the erection station 6 is connected to a belt conveyor 20, which takes over the cardboard blanks 3 from the endless conveyor and positioned in the erection station 6. As part of the The invention resides in the area of the erection station 6 arranged belt conveyor 20 to control separately.
  • the system according to the invention is for Erecting cardboard blanks as a two-lane system executed. It has two arranged parallel to each other Endless conveyor 8 with the assigned and described Aggregates 1, 4 and 6.

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  • Making Paper Articles (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

At least one vertical magazine-shaft (1) contains a stack (2) of cardboard sections (3) which are pulled consecutively and singly by a discharge arrangement (4) and conveyed to a conveyor (5) and aligner (6). The conveyor comprises a continuous conveyor (8) with parallel, spaced apart pull-elements (9) guided in the upper stringer by suction-boxes (10). The magazine shaft above the conveyor has edging contact surfaces for the stack at its bottom open end. The discharge arrangement below the conveyor has a vacuum suction arrangement moving up ad down in the shaft's longitudinal axis.

Description

Die Erfindung betrifft eine Anlage zum Aufrichten von Kartonzuschnitten, - mit Maschinengestell, mindestens einem Magazinschacht für einen Stapel aus Kartonzuschnitten, einer Abzugseinrichtung, mit der die Kartonzuschnitte nacheinander einzeln von dem Stapel abziehbar sind, und einer Transporteinrichtung, welche die dem Stapel entnommenen Kartonzuschnitte aufnimmt und einer Einrichtung zum Aufrichten der Kartonzuschnitte zuführt, wobei die Abzugseinrichtung als mit Vakuum beaufschlagbare Saugeinrichtung ausgebildet ist, wobei die Transporteinrichtung einen Endlosförderer mit parallel und im Abstand zueinander angeordneten Zugelementen aufweist, und wobei der Magazinschacht oberhalb und die Abzugseinrichtung unterhalb der Transporteinrichtung angeordnet sind. Als Kartonzuschnitte sind alle üblichen Kartensorten, wie Vollkarten, E-Welle, B-Welle, und dergleichen einsetzbar.The invention relates to a system for erecting Cardboard blanks - with machine frame, at least one Magazine slot for a stack of cardboard blanks, a take-off device with which the cardboard blanks in succession are individually peelable from the stack, and one Transport device, which the removed from the stack Cardboard blanks and a device for erecting feeds the carton blanks with the trigger device as a vacuum device to which vacuum can be applied is formed, wherein the transport device is an endless conveyor with parallel and spaced apart Has tension elements, and wherein the magazine shaft above and the trigger below Transport device are arranged. As cardboard blanks are all common types of cards, such as full cards, e-wave, B-wave, and the like can be used.

Eine Anlage mit den beschriebenen Merkmalen ist aus EP-A-0 164 585 bekannt. Zur Gewährleistung des Transports der Kartonzuschnitte sind am Endlosförderer Mitnehmerfinger angeordnet. Die korrekte Ausrichtung der Kartonzuschnitte für den nachfolgenden Aufrichtvorgang ist durch parallel zueinander ausgerichtete Führungsschienen gewährleistet, welche am Maschinengestell befestigt sind. Der Magazinschacht ist schräg nach unten ausgerichtet, und die Saugeinrichtung ist durch eine Drehbewegung gegen den unteren Kartonzuschnitt des Stapels bewegbar. A system with the features described is from EP-A-0 164 585 known. To ensure the transport of the Cardboard blanks are driver fingers on the endless conveyor arranged. The correct alignment of the cardboard blanks for the subsequent erection process is by parallel aligned guide rails guaranteed, which are attached to the machine frame. The magazine shaft is oriented obliquely downwards, and the suction device is by rotating against the bottom Carton blank of the stack movable.

Bei anderen bekannten Anlagen besteht die Abzugseinrichtung aus einem Greifer, der die Kartonzuschnitte an der Oberoder Unterseite des Stapels entnimmt, eine Schwenkund/oder Querbewegung ausführt und die aufgenommenen Kartonzuschnitte auf einer seitlichen oder unten liegenden Transporteinrichtung, welche Mitnehmer aufweist, ablegt. Die Kinematik ist verhältnismäßig komplex und deren konstruktive Umsetzung mechanisch aufwendig. Es ist nicht möglich, unterschiedliche Formate der Kartonzuschnitte im Wechsel zu manipulieren. Schließlich ist die Zugänglichkeit der Magazinschächte verbesserungsbedürftig.In other known systems, the trigger device from a gripper that cuts the cardboard blanks on the top or Underside of the stack, a swivel and / or Executes transverse movement and the recorded Cardboard blanks on a side or bottom Transport device, which has drivers, stores. The kinematics are relatively complex and their constructive Implementation mechanically complex. It is not possible, different formats of cardboard blanks in Manipulate change. Finally, the accessibility the magazine shafts in need of improvement.

Der Erfindung liegt die Aufgabe zugrunde, eine flexible Anlage der eingangs beschriebenen Art anzugeben, die sich durch eine besonders einfache Kinematik auszeichnet, dadurch eine hohe Leistung ermöglicht und ohne weiteres an Systemänderungen angepasst werden kann.The invention has for its object a flexible system of the type described at the outset characterized by a particularly simple kinematics, thereby high performance enables and without further ado System changes can be adjusted.

Zur Lösung dieser Aufgabe lehrt die Erfindung, dass der Magazinschacht vertikal ausgerichtet ist und an seinem unteren, offen ausgebildeten Ende randseitige Auflageflächen für den Stapel aufweist, dass die Zugelemente im Obertrum des Endlosförderers über Saugkästen geführt sind und die von der Transporteinrichtung bewegten Kartonzuschnitte unter der Wirkung eines in den Saugkästen erzeugten Unterdrucks auf den Zugelementen aufliegen, und dass die Saugeinrichtung in der Längsachse des Magazinschachtes auf und nieder verfahrbar und gegen den auf den Auflageflächen ruhenden unteren Kartonzuschnitt des Stapels bewegbar ist und diesen unter Saugwirkung zwischen den Auflageflächen nach unten abzieht und auf den kontinuierlich bewegten Endlosförderer ablegt. Die Erfindung nutzt die Erkenntnis, dass die Kartonzuschnitte elastisch verformbar sind und aufgrund dieser Elastizität bei entsprechend ausreichender Zugkraft durch eine kleinere, von den Auflageflächen begrenzte Öffnung am unteren Schachtende abgezogen werden können. Die Saugeinrichtung führt lediglich eine kurze Hubbewegung aus und legt den durch Saugwirkung abgezogenen Kartonzuschnitt auf den Zugelementen des Endlosförderers ab, der mit möglichst kleinem Abstand unterhalb des Magazinschachtes angeordnet ist. Da die Saugeinrichtung nur kleine vertikale Hubbewegungen ausführen muß, sind kurze Taktzeiten erreichbar. Es resultiert ferner ein kompakter Aufbau der Anlage. Schließlich ist vorteilhaft, daß der Magazinschacht oberseitig und seitlich frei zugänglich ist.To achieve this object, the invention teaches that Magazine slot is aligned vertically and at its lower, open-ended end edge-side contact surfaces for the stack has that the tension elements in The upper run of the endless conveyor is guided over suction boxes and the carton blanks moved by the transport device under the effect of one generated in the suction boxes Negative pressure on the tension elements, and that the suction device in the longitudinal axis of the magazine shaft movable up and down and against the on Supporting areas of the lower carton blank of the stack is movable and this under suction between the Subtracts down and continuously on the moving endless conveyor. The invention uses the realization that the cardboard blanks are elastically deformable are due to this elasticity and accordingly sufficient traction by a smaller, from limited opening at the bottom of the shaft can be deducted. The suction device only leads a short stroke and lifts it by suction peeled cardboard blank on the tension elements from the endless conveyor, with the smallest possible distance below the Magazine shaft is arranged. Because the suction device only small vertical strokes are short Cycle times attainable. It also results in a more compact one Construction of the plant. Finally, it is advantageous that the Magazine shaft is freely accessible on the top and sides.

Die Saugeinrichtung weist vorzugsweise einen an eine lineare Stelleinrichtung, beispielsweise Zylinder/Kolbenanordnung, angeschlossenen Saugkopf mit mehreren Saugnäpfen auf. An den Saugkopf ist eine Steuereinrichtung angeschlossen, welche die Saugnäpfe während der Aufwärtsbewegung des Kolbens mit Vakuum beaufschlagt und die Saugnäpfe während der Abwärtsbewegung bei der Ablage des Kartonzuschnitts auf dem Endlosförderer belüftet.The suction device preferably has a linear one Actuating device, for example cylinder / piston arrangement, connected suction head with several suction cups. To the A suction device is connected to a control device which controls the Suction cups during the upward movement of the piston with vacuum acted upon and the suction cups during the downward movement when depositing the cardboard blank on the endless conveyor ventilated.

Die Auflageflächen bestehen zweckmäßig aus Auflageleisten oder Auflageklötzen, die verstellbeweglich am Maschinengestell befestigt sind. Die Verstellung der Auflageleisten oder Auflageklötze erfolgt lediglich bei einem Formatwechsel. Der Magazinschacht weist vorzugsweise einen Aufsatz auf, der mittels einer Steckverbindung lösbar am Maschinengestell gehalten ist. Bei einem Formatwechsel kann der Aufsatz leicht ausgetauscht werden.The contact surfaces expediently consist of support strips or support blocks that are adjustable on the machine frame are attached. The adjustment of the support slats or support blocks only occurs when the format is changed. The magazine shaft preferably has an attachment that detachable on the machine frame by means of a plug connection is held. When changing the format, the attachment can easily be replaced.

Für die Gestaltung der Zugelemente bestehen verschiedene Möglichkeiten. Wesentlich ist, daß die Kartonzuschnitte abgestützt sind und der in den Saugkästen erzeugte Unterdruck an den Kartonzuschnitten anliegt und diese dadurch an den Zugelementen fixiert. Geeignet sind beispielsweise Lochbänder und dergleichen. Gemäß einer bevorzugten Ausführung der Erfindung bestehen die Zugelemente jeweils aus einem Paar parallel zueinander angeordneter Schnüre, wobei der seitliche Abstand zwischen den Schnüren im wesentlichen der Breite der Saugkästen entspricht.There are various designs for the tension elements Possibilities. It is essential that the cardboard blanks are supported and the negative pressure generated in the suction boxes lies against the cardboard blanks and this thereby on the Tension elements fixed. Perforated tapes are suitable, for example and the same. According to a preferred embodiment of the Invention, the tension elements each consist of a pair cords arranged parallel to each other, the lateral one Distance between the cords essentially the width of the Suction boxes corresponds.

In weiterer Ausgestaltung lehrt die Erfindung, daß eine Mehrzahl von Magazinschächten mit zugeordneten, identisch ausgebildeten Saugeinrichtungen in Transportrichtung des Endlosförderers hintereinander angeordnet sind. Kartonzuschnitte können im Wechsel aus den hintereinander angeordneten Magazinschächten entnommen werden. Daraus resultieren zahlreiche Vorteile für die Praxis. So ist es möglich, die Kartonzuschnitte mit einer noch kürzeren zeitlichen Abfolge auf dem Band abzulegen, indem die Arbeitstakte der Saugeinrichtungen aufeinander entsprechend abgestimmt werden. Ferner besteht die Möglichkeit, die Magazinschächte mit unterschiedlichen Kartonzuschnitten zu beschicken, sei es, daß die Kartonzuschnitte mit unterschiedlichen Aufdrucken versehen sind und/oder unterschiedliche Formate aufweisen. In einer beliebig vorgegebenen Reihenfolge können die Kartonzuschnitte aus den Magazinschächten abgefordert werden. Dies ermöglicht eine sehr flexible Arbeitsweise der Anlage. Im weiteren Verlauf werden die Kartonzuschnitte in die Aufrichterstation transportiert. Da die Zugelemente (Transportriemen) mit einer konstanten Geschwindigkeit angetrieben werden, ist ein sicherer Kontakt mit der Zentriervorrichtung des Formatwerkzeuges gewährleistet. Dementsprechend ist auch die Präzision des Aufrichters sichergestellt. In a further embodiment, the invention teaches that a A plurality of magazine slots with assigned, identical trained suction devices in the direction of transport Endless conveyor are arranged one behind the other. Cardboard blanks can alternate from the one behind the other arranged magazine shafts can be removed. from that there are numerous practical advantages. That's the way it is possible to cut the cardboard with an even shorter time sequence on the tape by the Work cycles of the suction devices corresponding to one another be coordinated. There is also the possibility of Magazine slots with different cardboard cuts load, be it that the cardboard blanks with different prints are provided and / or have different formats. In any one the cardboard blanks from the given order Magazine slots are requested. This enables one very flexible operation of the system. In the further course the cardboard blanks into the erector station transported. Since the tension elements (transport belts) with a constant speed is a safe contact with the centering device of the Format tool guaranteed. Accordingly, the Precision of the erector ensured.

Die Einrichtung zum Aufrichten der Kartonzuschnitte weist üblicherweise einen linearen Stempelantrieb, vorzugsweise über servomotorisch angetriebene Linearachsen, mit aufundnieder bewegbarem Aufrichtstempel sowie ein mit dem Aufrichtstempel zusammenwirkendes Formatwerkzeug auf. Im Rahmen der Erfindung liegt es, den Stempelantrieb wahlweise oberhalb oder unterhalb der Transporteinrichtung anzuordnen, wodurch flexible Anpassungen der erfindungsgemäßen Anlage bei Systemänderungen möglich sind. Zum Manipulieren von Behälterzuschnitten lehrt die Erfindung, daß der lineare Stempelantrieb oberhalb der Transporteinrichtung und das Formatwerkzeug, welches mit dem Aufrichtstempel zusammenwirkt, unterhalb der Transporteinrichtung angeordnet ist. Wenn der Aufrichtstempel zur Aufnahme von primär verpackten Produkten, z.B. gefüllten Folienbeuteln u.dgl. eingerichtet ist, können in einem Arbeitsgang das Aufrichten des Behälters und das Einbringen von Verpackungsgut in einem Arbeitsgang ausgeführt werden. Zum Manipulieren von Deckelzuschnitten lehrt die Erfindung, daß der lineare Stempelantrieb unterhalb der Transporteinrichtung und das Formatwerkzeug oberhalb der Transporteinrichtung angeordnet ist. Beim Aufrichten der Deckelzuschnitte ist ein Wenden nicht mehr erforderlich. Ferner kann der Deckel an einer Stelle geformt werden, die der Verdecklungshöhe entspricht, so daß der Deckel ohne Zwischenhub auf einem Behälter aufgesetzt werden kann. Der Aufrichtstempel sowie die Formatwerkzeuge weisen vorzugsweise verstellbare Flächen auf und können nach Maßgabe eines Steuerprogramms automatisch an unterschiedliche Formate angepaßt werden. The device for erecting the cardboard blanks has usually a linear punch drive, preferably via servo-driven linear axes, with up and down movable erection stamp and one with the Raising stamp interacting format tool. in the The scope of the invention is to select the punch drive to be arranged above or below the transport device, whereby flexible adjustments to the system according to the invention System changes are possible. To manipulate The invention teaches container blanks that the linear Stamp drive above the transport device and that Format tool, which with the erection stamp cooperates, arranged below the transport device is. If the erection stamp is used to hold primary packaged products, e.g. filled plastic bags and the like can be set up in one operation of the container and the introduction of packaging goods in one Operation. To manipulate Lid blanks the invention teaches that the linear Stamp drive below the transport device and that Format tool arranged above the transport device is. There is a turning when straightening the lid blanks not necessary anymore. Furthermore, the lid on a Point that corresponds to the height of the cover, so that the lid on a container without an intermediate stroke can be put on. The erection stamp as well as the Format tools preferably have adjustable surfaces and can automatically start according to a control program different formats can be adapted.

In weiterer Ausgestaltung lehrt die Erfindung, daß eine Beleimungseinrichtung entlang dem Transportweg des Endlosförderers zwischen dem Magazinschacht und der Einrichtung zum Aufrichten der Kartonzuschnitte vorgesehen ist. Da der Endlosförderer mit vorzugsweise konstanter und verglichen mit herkömmlichen Systemen niedriger Umlaufgeschwindigkeit angetrieben wird, ist eine sehr gleichmäßige Beleimung an den dafür vorgesehenen Stellen der Verpackungszuschnitte möglich.In a further embodiment, the invention teaches that a Gluing device along the transport route of the Endless conveyor between the magazine shaft and the Device for erecting the cardboard blanks provided is. Since the endless conveyor with preferably constant and compared to conventional low-speed systems is very uniform Gluing at the designated places of the Packaging cuts possible.

Die erfindungsgemäße Anlage zeichnet sich durch einen kompakten Aufbau aus. Sie erlaubt eine hohe Leistung, also die Manipulation einer großen Zahl von Zuschnitten pro Zeiteinheit, bei verhältnismäßig kleiner Transportgeschwindigkeit des Endlosförderers. Die hohe Leistung ist erreichbar durch einen kleinen Hub der Abzugseinrichtung, gegebenenfalls in Verbindung mit einer Mehrzahl hintereinander geschalteter, bezüglich des Arbeitstaktes aufeinander abgestimmter Magazinschächte. Die erfindungsgemäße Anlage erlaubt die Manipulation von Zuschnitten mit großen Zuschnittoleranzen, wobei auch bogenförmige gekrümmte Zuschnitte verarbeitet werden können. Großformatige Zuschnitte lassen sich ebenfalls handhaben. Die erfindungsgemäße Anlage ist flexibel anpaßbar bei Systemänderungen, erlaubt einen schnellen Formatwechsel und ermöglicht auch die gleichzeitige Verarbeitung mehrerer Formate, die ohne Umrüstung der Vorrichtung aus verschiedenen Magazinschächten abgezogen werden. Besondere Vorteile ergeben sich im Vergleich zum Stand der Technik schließlich bei der Manipulation von Deckelzuschnitten. The system according to the invention is characterized by a compact structure. It allows high performance, so manipulating a large number of blanks per Unit of time at a relatively low transport speed of the endless conveyor. The high performance is achievable by a small stroke of the trigger device, if necessary in connection with a plurality of more coordinated with respect to the work cycle Magazine compartments. The system according to the invention allows Manipulation of blanks with large blanking tolerances, whereby curved curved blanks are also processed can be. Large-format cuts can also be made handle. The system according to the invention is flexibly adaptable with system changes, allows a quick format change and also enables the simultaneous processing of several Formats that can be made from different devices without retrofitting the device Magazine slots are deducted. There are special advantages compared to the state of the art Manipulation of lid blanks.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematisch

Fig. 1
die Seitenansicht einer flexiblen Anlage zum Aufrichten von Kartonzuschnitten,
Fig. 2
den Schnitt I-I in Fig. 1,
Fig. 3
eine Draufsicht auf die in Fig. 1 dargestellte Anlage.
In the following the invention will be explained with reference to a drawing showing only one embodiment. They show schematically
Fig. 1
the side view of a flexible system for erecting cardboard blanks,
Fig. 2
the section II in Fig. 1,
Fig. 3
a plan view of the system shown in Fig. 1.

Die in den Figuren dargestellte Anlage bzw. Vorrichtung umfaßt mehrere vertikale Magazinschächte 1 für jeweils einen Stapel 2 aus Kartonzuschnitten 3, den Magazinschächten 1 zugeordnete Abzugseinrichtungen 4, mit der die Kartonzuschnitte 3 nacheinander einzeln von dem Stapel 2 abziehbar sind, und eine Transporteinrichtung 5, welche die den Stapeln 2 entnommenen Kartonzuschnitte 3 aufnimmt und einer Einrichtung 6 zum Aufrichten der Kartonzuschnitte, im folgendem auch Aufrichtstation genannt, zuführt. Die beschriebenen Aggregate sind in einem gemeinsamen Maschinengestell 7 untergebracht.The system or device shown in the figures comprises several vertical magazine shafts 1 for one each Stack 2 of cardboard blanks 3, the magazine slots 1 assigned trigger devices 4 with which the Cardboard blanks 3 one by one from the stack 2 are removable, and a transport device 5, which the the stacks 2 removed cardboard blanks 3 and a device 6 for erecting the cardboard blanks in also called the erection station. The described aggregates are in a common Machine frame 7 housed.

Die Transporteinrichtung 5 weist einen Endlosförderer 8 mit parallel und im Abstand zueinander angeordneten Zugelementen 9 auf, wobei die Zugelemente 9 im Obertrum des Endlosförderers über Saugkästen 10 geführt sind. Die von der Transporteinrichtung 5 bewegten Kartonzuschnitte 3 liegen unter der Wirkung eines in den Saugkästen 10 erzeugten Unterdrucks auf den Zugelementen 9 auf. Die Magazinschächte 1 sind oberhalb der Transporteinrichtung 5 angeordnet und weisen an ihrem unteren, offen ausgebildeten Ende randseitige Auflageflächen 11 für den Stapel auf. Die Abzugseinrichtungen 4 sind unterhalb der Transporteinrichtung 5 angeordnet und besitzen eine in der Längsachse des zugeordneten Magazinschachtes 1 aufundnieder verfahrbare sowie mit Vakuum beaufschlagbare Saugeinrichtung 12, die gegen den auf den Auflageflächen 11 ruhenden unteren Kartonzuschnitt 3 des Stapels 2 bewegbar ist und diesen unter Saugwirkung zwischen den Auflageflächen 11 nach unten aus dem Magazinschacht 1 abzieht sowie auf dem kontinuierlich bewegten Endlosförderer 8 ablegt.The transport device 5 has an endless conveyor 8 parallel and spaced apart tension elements 9, with the tension elements 9 in the upper strand of the Endless conveyor are guided over suction boxes 10. The one from the Transport device 5 moving cardboard blanks 3 lie under the effect of one generated in the suction boxes 10 Negative pressure on the tension elements 9. The magazine slots 1 are arranged above the transport device 5 and point at their lower, open-ended end Contact surfaces 11 for the stack. The trigger devices 4 are arranged below the transport device 5 and have one in the longitudinal axis of the assigned magazine slot 1 moving up and down and with vacuum acted upon suction device 12 against the on Contact surfaces 11 resting lower carton blank 3 of the Stack 2 is movable and this under suction between the contact surfaces 11 downward from the magazine shaft 1 deducts as well as on the continuously moving endless conveyor 8 drops.

Insbesondere der Fig. 2 entnimmt man, daß die Saugeinrichtungen 12 einen an eine Zylinder/Kolbenanordnung angeschlossenen Saugkopf 13 mit mehreren Saugnäpfen 14 aufweisen. An den Saugkopf 13 ist eine nicht dargestellte Steuerungseinrichtung angeschlossen, welche die Saugnäpfe 14 während der Aufwärtsbewegung des Kolbens mit Vakuum beaufschlagt und die Saugnäpfe während der Abwärtsbewegung bei der Ablage des Kartonzuschnitts 3 auf dem Endlosförderer 8 belüftet.In particular, Fig. 2 shows that the Suction devices 12 one to a cylinder / piston arrangement connected suction head 13 with several suction cups 14 exhibit. At the suction head 13 is a not shown Control device connected, the suction cups 14th during the upward movement of the piston with vacuum acted upon and the suction cups during the downward movement when depositing the cardboard blank 3 on the endless conveyor 8 ventilated.

Die Auflageflächen 11 der Magazinschächte bestehen aus Auflageleisten oder Auflageklötzen, die vorzugsweise verstellbeweglich am Maschinengestell 7 befestigt sind. Die Magazinschächt 1 haben jeweils einen Aufsatz 15, der mittels einer Steckverbindung lösbar am Maschinengestell 7 gehalten ist und bei einem Formatwechsel ausgetauscht wird. The contact surfaces 11 of the magazine shafts consist of Support strips or support blocks, which are preferred are adjustably attached to the machine frame 7. The Magazine chute 1 each have an attachment 15, which means a connector detachably held on the machine frame 7 and is exchanged when the format changes.

Insbesondere einer vergleichenden Betrachtung der Fig. 1 und 3 entnimmt man, daß die Zugelemente 9 jeweils aus einem Paar parallel zueinander angeordneter Schnüre 16 bestehen, wobei der seitliche Abstand zwischen den Schnüren im wesentlichen der Breite der Saugkästen 10 entspricht.In particular, a comparative analysis of FIGS. 1 and 3 reveals that the tension elements 9 each consist of a pair cords 16 arranged parallel to each other, wherein the lateral distance between the cords essentially corresponds to the width of the suction boxes 10.

Die Aufrichterstation 6 weist einen Aufrichterkopf auf, der die zugeführten Kartonzuschnitte wahlweise in eine Auf- und Niederbewegung aufrichtet. Optimal ist auch ein Wrap-around System einsetzbar. Im Ausführungsbeispiel erkennt man einen linearen Stempelantrieb 17, vorzugsweise unter servomotorisch angetriebenen Linearachsen, mit aufundnieder bewegbarem Aufrichtstempel 18 sowie einem mit dem Aufrichtstempel 18 zusammenwirkenden Formatwerkzeug 19. Im Ausführungsbeispiel ist der Stempelantrieb 17 unterhalb der Transporteinrichtung 5 und das Formatwerkzeug 19 oberhalb der Transporteinrichtung 5 angeordnet. Diese Ausführung der Erfindung eignet sich besonders zum Manipulieren von Deckelzuschnitten. Bei einer Systemänderung kann der Stempelantrieb 17 auch oberhalb der Transporteinrichtung 5 und das Formatwerkzeug 19 unterhalb der Transporteinrichtung 5 angeordnet werden.The lifting station 6 has a lifting head, which the supplied carton blanks optionally in an opening and Erect downward movement. A wrap-around is also ideal System can be used. In the embodiment you can see one linear stamp drive 17, preferably under servo motor driven linear axes, with up and down movable Erecting stamp 18 and one with the erecting stamp 18 cooperating format tool 19. In the embodiment is the stamp drive 17 below the transport device 5 and the format tool 19 above the transport device 5 arranged. This embodiment of the invention is suitable especially for manipulating lid blanks. At a System change, the stamp drive 17 also above Transport device 5 and the format tool 19 below the transport device 5 can be arranged.

Der Fig. 3 entnimmt man, daß an den Endlosförderer 8 im Bereich der Aufrichtstation 6 ein Gurtförderer 20 anschließt, der die Kartonzuschnitte 3 von dem Endlosförderer übernimmt und in der Aufrichtstation 6 positioniert. Im Rahmen der Erfindung liegt es, diesen im Bereich der Aufrichtstation 6 angeordneten Gurtförderer 20 separat zu steuern. Fig. 3 shows that to the endless conveyor 8 in Area of the erection station 6 is connected to a belt conveyor 20, which takes over the cardboard blanks 3 from the endless conveyor and positioned in the erection station 6. As part of the The invention resides in the area of the erection station 6 arranged belt conveyor 20 to control separately.

Im Ausführungsbeispiel ist die erfindungsgemäße Anlage zum Aufrichten von Kartonzuschnitten als zweibahnige Anlage ausgeführt. Sie weist zwei parallel nebeneinander angeordnete Endlosförderer 8 mit den zugeordneten und beschriebenen Aggregaten 1, 4 und 6 auf.In the exemplary embodiment, the system according to the invention is for Erecting cardboard blanks as a two-lane system executed. It has two arranged parallel to each other Endless conveyor 8 with the assigned and described Aggregates 1, 4 and 6.

Claims (10)

  1. A system for uprighting cardboard blanks, comprising
    a machine frame (7),
    a magazine shaft (1) for a stack (2) of cardboard blanks (3),
    a withdrawal device (4) for individually withdrawing the cardboard blanks (3) from the stack (2) in succession, and
    a transport device (5) that receives and transports the cardboard blanks (3) withdrawn from the stack (2) to a device (6) for uprighting the cardboard blanks,
    wherein the withdrawal device (4) is realized in the form of a suction device (12) that can be subjected to a vacuum,
    wherein the transport device (5) comprises an endless conveyor with parallel tension elements (9) that are spaced apart from one another, and
    wherein the magazine shaft (1) is arranged above the transport device (5) and the withdrawal device (4) is arranged underneath the transport device,
    characterized by the fact that
    1.1 the magazine shaft (1) is aligned vertically and provided with peripheral support surfaces (11) for the stack (2) on its lower, open end, by the fact that
    1.2 the tension elements (9) are guided over suction boxes (10) in the upper section of the endless conveyor (8) and the cardboard blanks (3) moved by the transport device (5) lie on the tension elements (9) under the influence of a negative pressure that is generated in the suction boxes (10), and by the fact that
    1.3 the suction device (12) can be vertically displaced in the longitudinal axis of the magazine shaft (1) and moved against the bottom cardboard blank of the stack which rests on the support surfaces (11), wherein the suction device withdraws this bottom cardboard blank downward between the support surfaces (11) by means of a suction effect and deposits said cardboard blank on the continuously moved endless conveyor (8).
  2. The system according to Claim 1, characterized by the fact that the suction device (12) contains a suction head (13) with several suction cups (14) which is connected to a linear adjusting device, for example, a piston/cylinder arrangement, and by the fact that a control device is connected to the suction head (13) such that the suction cups (14) can be subjected to a vacuum during the upward movement of the piston and the suction cups (14) can be ventilated during the downward movement in order to deposit the cardboard blank (3) on the endless conveyor (8).
  3. The system according to Claims 1 and 2, characterized by the fact that the support surfaces (11) consist of support rails or support blocks that are adjustably mounted on the machine frame (7).
  4. The system according to one of Claims 1-3, characterized by the fact that the magazine shaft (1) contains an attachment (15) that is separably held on the machine frame (7) by means of a plug-type connection.
  5. The system according to one of Claims 1-4, characterized by the fact that the tension elements (9) respectively consist of a pair of cords (16) that are arranged parallel to one another, wherein the lateral spacing between the cords (16) essentially corresponds to the width of the suction boxes (10).
  6. The system according to one of Claims 1-5, in particular, for manipulating container blanks, characterized by the fact that the device (6) for uprighting the cardboard blanks contains a plunger drive (17) with a vertically movable uprighting plunger (18), as well as a formatting tool (19) that cooperates with the uprighting plunger (18), wherein the plunger drive (17) is arranged above the transport device (5) and the formatting tool (19) is arranged underneath the transport device (5).
  7. The system according to one of Claims 1-5, in particular, for manipulating cover blanks, characterized by the fact that the device (6) for uprighting the cardboard blanks contains a linear plunger drive (17) with a vertically movable uprighting plunger (18), as well as a formatting tool (19) that cooperates with the uprighting plunger (18), wherein the plunger drive (17) is arranged underneath the transport device (5) and the formatting tool (19) is arranged above the transport device (5).
  8. The system according to one of Claims 1-7, characterized by the fact that a glue application device is arranged along the transport path of the endless conveyor (8) between the magazine shaft (1) and the device (6) for uprighting the cardboard blanks.
  9. The system according to one of Claims 1-8, characterized by the fact that a series of magazine shafts (1) with identically designed suction devices (12) assigned thereto are successively arranged in the transport direction of the endless conveyor (8).
  10. The system according to Claim 6 or 7, characterized by the fact that the uprighting plunger (18) and the formatting tool (19) have adjustable surfaces that can be automatically adapted to different formats based on a control program.
EP97100996A 1997-01-23 1997-01-23 Flexible device for forming carton blanks Expired - Lifetime EP0856396B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT97100996T ATE246594T1 (en) 1997-01-23 1997-01-23 FLEXIBLE SYSTEM FOR SETTING UP CARDBOARD CUTTINGS
DE59710539T DE59710539D1 (en) 1997-01-23 1997-01-23 Flexible system for erecting cardboard blanks
EP97100996A EP0856396B1 (en) 1997-01-23 1997-01-23 Flexible device for forming carton blanks
CA002211056A CA2211056A1 (en) 1997-01-23 1997-08-06 Box-erecting apparatus
US08/951,040 US5924968A (en) 1997-01-23 1997-10-15 Box-erecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97100996A EP0856396B1 (en) 1997-01-23 1997-01-23 Flexible device for forming carton blanks

Publications (2)

Publication Number Publication Date
EP0856396A1 EP0856396A1 (en) 1998-08-05
EP0856396B1 true EP0856396B1 (en) 2003-08-06

Family

ID=8226396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100996A Expired - Lifetime EP0856396B1 (en) 1997-01-23 1997-01-23 Flexible device for forming carton blanks

Country Status (5)

Country Link
US (1) US5924968A (en)
EP (1) EP0856396B1 (en)
AT (1) ATE246594T1 (en)
CA (1) CA2211056A1 (en)
DE (1) DE59710539D1 (en)

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Also Published As

Publication number Publication date
EP0856396A1 (en) 1998-08-05
DE59710539D1 (en) 2003-09-11
ATE246594T1 (en) 2003-08-15
US5924968A (en) 1999-07-20
CA2211056A1 (en) 1998-07-23

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