EP0472980B1 - Magazine for box blanks - Google Patents

Magazine for box blanks Download PDF

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Publication number
EP0472980B1
EP0472980B1 EP91113395A EP91113395A EP0472980B1 EP 0472980 B1 EP0472980 B1 EP 0472980B1 EP 91113395 A EP91113395 A EP 91113395A EP 91113395 A EP91113395 A EP 91113395A EP 0472980 B1 EP0472980 B1 EP 0472980B1
Authority
EP
European Patent Office
Prior art keywords
magazine
suckers
blanks
bottom blank
lever
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
EP91113395A
Other languages
German (de)
French (fr)
Other versions
EP0472980A1 (en
Inventor
Wilhelm Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
4P Nicolaus Kempten GmbH
Original Assignee
WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
4P Nicolaus Kempten GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH, 4P Nicolaus Kempten GmbH filed Critical WILHELM FISCHER SPEZIALMASCHINENFABRIK GmbH
Publication of EP0472980A1 publication Critical patent/EP0472980A1/en
Application granted granted Critical
Publication of EP0472980B1 publication Critical patent/EP0472980B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02Feeding or positioning sheets, blanks or webs
    • B31B50/04Feeding sheets or blanks
    • B31B50/06Feeding sheets or blanks from stacks
    • B31B50/062Feeding sheets or blanks from stacks from the underside of a magazine

Definitions

  • the invention relates to a magazine for cardboard blanks or the like with removal suction devices for removing the bottom blank in each case from a stack, this bottom blank resting on its one boundary edge on a transverse leg of an angular stop and providing further support for the edge facing away from it and with an air nozzle, the air flow of which is directed between the individual blanks.
  • the invention has for its object to design a magazine of the type mentioned so that accidental removal of several blanks is avoided.
  • the lever has a slight lead over the suction cups and thus arrives at the lowest cut shortly before these.
  • a further advantageous embodiment of the invention results if the negative pressure acting on the tapping suckers is controlled as a function of their speed and switches off earlier at a higher speed.
  • the further support of the bottom blank is designed as a roller bearing.
  • a magazine 1 with a magazine is designated, which is equipped with a number of cardboard blanks 2 and is open both above and below.
  • a take-off suction device 6 pivotably mounted on a lever arm 5, which takes up contact with the bottom carton blank 2 and pulls it out of the stack and places it on a transport chain 7 which passes underneath the magazine.
  • a further lever 8 is pivotally mounted, which is pivotable against the bottom carton blank and slightly raises it.
  • An air nozzle 9 visible in FIG. 2 is incorporated into the angular stop 3 and is connected to an air supply line 10. Through this air nozzle 9 an air flow is directed between the individual cardboard blanks.
  • the take-off suction device 6 and the lever 8 operate in the same cycle, but the lever 8 has a slight advance in order to loosen the cardboard blanks before the bottom suction device is gripped by the take-off suction device. At the same time, air flows out of the air nozzle 9 between the blanks which have already been loosened, whereby the loosening is additionally supported.
  • the negative pressure acting on the suction cup (several cut-off cups can also be arranged parallel to one another with correspondingly large cuts) is controlled as a function of the actuation speed of the suction cups and is switched off earlier as the speed increases.

Landscapes

  • Supplying Of Containers To The Packaging Station (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Making Paper Articles (AREA)

Description

Die Erfindung bezieht sich auf ein Magazin für Kartonzuschnitte oder dergleichen mit Abnahmesaugern zum Abnehmen des jeweils untersten Zuschnittes von einem Stapel, wobei dieser unterste Zuschnitt an seiner einen Begrenzungskante auf einem quer verlaufenden Schenkel eines winkelförmigen Anschlages aufliegt und für die davon abgewandte Kante eine weitere Unterstützung vorgesehen ist sowie mit einer Luftdüse, deren Luftstrom zwischen die einzelnen Zuschnitt gerichtet ist.The invention relates to a magazine for cardboard blanks or the like with removal suction devices for removing the bottom blank in each case from a stack, this bottom blank resting on its one boundary edge on a transverse leg of an angular stop and providing further support for the edge facing away from it and with an air nozzle, the air flow of which is directed between the individual blanks.

Bei derartigen Magazinen ist es, insbesondere wenn die Kartonzuschnitte in sehr schneller Folge abgezogen werden sollen, wichtig, daß tatsächlich immer nur ein Zuschnitt abgezogen wird, da es sonst zwangsläufig zu Betriebsstörungen kommt.With magazines of this type, it is important, especially if the cardboard blanks are to be pulled off in very rapid succession, that only one blank is actually ever pulled off, since otherwise this would inevitably lead to malfunctions.

Aus der US-A-3 429 570 ist ein Magazin der eingangs genannten Art bekannt, bei dem im oberen Bereich der Zuschnitte seitlich je eine Luftdüse vorgesehen ist, die das Separieren der Zuschnitte unterstützen sollen. Die Zuschnitte haften jedoch häufig sehr stark aneinander, so daß die Luft erst eintreten kann, wenn durch die Abnahmesauger bereits ein leichtes Abheben eingetreten ist.From US-A-3 429 570 a magazine of the type mentioned is known, in which an air nozzle is provided on the side in the upper region of the blanks, which is intended to assist the separation of the blanks. However, the blanks often adhere very strongly to one another, so that the air can only enter when the suction cups have already lifted slightly.

Dabei kann es aber durchaus vorkommen, daß vom Abnahmesauger mehrere Kartonzuschnitte abgenommen werden und die Luft aus den Düsen nicht zwischen die einzelnen Zuschnitte eindringt.However, it can happen that several carton blanks are removed from the take-off suction device and that the air from the nozzles does not penetrate between the individual blanks.

Der Erfindung liegt die Aufgabe zugrunde, ein Magazin der genannten Art so auszugestalten, daß ein versehentliches Abziehen mehrerer Zuschnitte vermieden wird.The invention has for its object to design a magazine of the type mentioned so that accidental removal of several blanks is avoided.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Luftdüse in den winkelförmigen Anschlag eingearbeitet ist, und daß ein schwenkbar gelagerter Hebel vorgesehen ist, der gegen den untersten Zuschnitt schwenkbar ist und diesen wenigstens geringfügig anhebt.This object is achieved in that the air nozzle is incorporated in the angular stop, and that a pivotally mounted lever is provided which is pivotable against the bottom blank and at least slightly lifts it.

Dadurch werden die Kartonzuschnitte aufgelockert und voneinander separiert, so daß nur jeweils der unterste Zuschnitt abgezogen werden kann. Der Hebel gewährleistet dabei, daß der Luftstrom sicher zwischen die Kartonzuschnitte des Zuschnitt-Stapels eindringen kann.This loosens the cardboard blanks and separates them from each other so that only the bottom blank can be removed. The lever ensures that the air flow can safely penetrate between the cardboard blanks of the blank stack.

Als sehr vorteilhaft hat es sich dabei erwiesen, wenn erfindungsgemäß der Hebel im gleichen Takt angesteuert ist wie die Abnahmesauger.It has proven to be very advantageous if, according to the invention, the lever is actuated in the same cycle as the removal suction device.

Damit ist das Auflockern im jeweils richtigen Zeitpunkt, d.h. wenn auch der Abnahmesauger wirksam wird, gewährleistet.This loosens up at the right time, i.e. if the take-off suction device also becomes effective.

Sehr vorteilhaft ist es dabei, wenn erfindungsgemäß der Hebel gegenüber den Abnahmesaugern eine geringfügige Voreilung aufweist und damit kurz vor diesen am untersten Zuschnitt ankommt.It is very advantageous if, according to the invention, the lever has a slight lead over the suction cups and thus arrives at the lowest cut shortly before these.

Damit ist eine gewisse Voreilung der Auflockerung gewährleistet, was sich als besonders vorteilhaft erwiesen hat.This ensures a certain advance in the loosening, which has proven to be particularly advantageous.

Eine weitere vorteilhafte Ausgestaltung der Erfindung ergibt sich, wenn der auf die Abnahmesauger wirkende Unterdruck in Abhängigkeit von deren Geschwindigkeit gesteuert wird und bei höherer Geschwindigkeit früher abschaltet.A further advantageous embodiment of the invention results if the negative pressure acting on the tapping suckers is controlled as a function of their speed and switches off earlier at a higher speed.

Damit ist gewährleistet, daß der Unterdruck der Abnahmesauger rechtzeitig abschaltet und die Zuschnitte nur auf der vorgesehenen Transporteinrichtung abgelegt und nicht in diese hineingezogen werden.This ensures that the vacuum of the take-off suction switches off in good time and that the blanks are only placed on the intended transport device and are not drawn into it.

Als sehr vorteilhaft hat es sich auch erwiesen, wenn erfindungsgemäß die weitere Unterstützung des untersten Zuschnittes als Rollenlager ausgebildet ist.It has also proven to be very advantageous if, according to the invention, the further support of the bottom blank is designed as a roller bearing.

Damit ist das Abziehen des jeweils untersten Zuschnittes noch weiter erleichtert.This makes it even easier to pull off the bottom blank.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels veranschaulicht. Dabei zeigen:

Fig.1
eine schematisierte Ansicht eines erfindungsgemäßen Magazins mit einem winkelförmigen Anschlag für die Kartonzuschnitte und
Fig.2
eine vergrößerte Darstellung eines Schnittes durch den winkelförmigen Anschlag.
The invention is illustrated in the drawing using an exemplary embodiment. Show:
Fig. 1
a schematic view of a magazine according to the invention with an angular stop for the cardboard blanks and
Fig. 2
an enlarged view of a section through the angular stop.

Mit 1 ist ein Magazin bezeichnet, das mit einer Anzahl von Kartonzuschnitten 2 bestückt und sowohl oben als auch unten offen ist. An der Unterseite ist einerseits ein winkelförmiger Anschlag 3 mit einem quer verlaufende Schenkel und andererseits ein Rollenlager 4 angeordnet, um die Kartonzuschnitte im Magazin zu halten. Unterhalb des Magazins 1 ist ein an einem Hebelarm 5 schwenkbar gelagerter Abnahmesauger 6 vorgesehen, welcher sich an den jeweils untersten Kartonzuschnitt 2 anlegt und diesen aus dem Stapel abzieht und auf eine Transportkette 7 auflegt, die unterhalb des Magazins durchläuft. Ebenfalls unterhalb des Magazins 1 ist ein weiterer Hebel 8 schwenkbar gelagert, der gegen den untersten Kartonzuschnitt schwenkbar ist und diesen geringfügig anhebt.1 with a magazine is designated, which is equipped with a number of cardboard blanks 2 and is open both above and below. On the underside there is an angular stop 3 with a transverse leg on the one hand and a roller bearing 4 on the other hand to hold the cardboard blanks in the magazine. Below the magazine 1 there is a take-off suction device 6 pivotably mounted on a lever arm 5, which takes up contact with the bottom carton blank 2 and pulls it out of the stack and places it on a transport chain 7 which passes underneath the magazine. Also below the magazine 1, a further lever 8 is pivotally mounted, which is pivotable against the bottom carton blank and slightly raises it.

In den winkelförmigen Anschlag 3 ist eine in Fig.2 sichtbare Luftdüse 9 eingearbeitet, die mit einer Luftzufuhrleitung 10 verbunden ist. Durch diese Luftdüse 9 wird ein Luftstrom zwischen die einzelnen Kartonzuschnitte gerichtet.An air nozzle 9 visible in FIG. 2 is incorporated into the angular stop 3 and is connected to an air supply line 10. Through this air nozzle 9 an air flow is directed between the individual cardboard blanks.

Der Abnahmesauger 6 und der Hebel 8 arbeiten im gleichen Takt, wobei allerdings der Hebel 8 eine geringe Voreilung aufweist, um die Kartonzuschnitte vor dem Ergreifen des untersten durch den Abnahmesauger aufzulockern. Gleichzeitig strömt aus der Luftdüse 9 Luft zwischen die bereits aufgelockerten Zuschnitte, wodurch das Auflockern noch zusätzlich unterstützt wird.The take-off suction device 6 and the lever 8 operate in the same cycle, but the lever 8 has a slight advance in order to loosen the cardboard blanks before the bottom suction device is gripped by the take-off suction device. At the same time, air flows out of the air nozzle 9 between the blanks which have already been loosened, whereby the loosening is additionally supported.

Der auf den Abnahmesauger (es können bei entsprechend großen Zuschnitten auch mehrere Abnahmesauger parallel zueinander angeordnet sein) wirkende Unterdruck wird in Abhängigkeit von der Betätigungsgeschwindigkeit der Sauger gesteuert und wird bei steigender Geschwindigkeit früher abgeschaltet.The negative pressure acting on the suction cup (several cut-off cups can also be arranged parallel to one another with correspondingly large cuts) is controlled as a function of the actuation speed of the suction cups and is switched off earlier as the speed increases.

Claims (5)

  1. Magazine (1) for board or similar blanks (2), with suckers (6) to remove the bottom blank from a pile, where one edge of this bottom blank (2) rests on a cross section of an angular stop (3) and where a further support is provided for the opposite edge of the blank, and with an air nozzle (9), the jet of air from which is directed between the individual blanks (2), wherein the air nozzle (9) is incorporated in the angular stop (3) and wherein a pivoted lever (8) is provided, which can be moved towards the bottom blank (2) and lifts it at least slightly.
  2. Magazine according to claim 1, wherein the lever (8) is activated in the same rhythm as the suckers (6).
  3. Magazine according to claim 1, wherein the lever (8) is slightly ahead of the suckers (6), so that it reaches the bottom blank (2) a short time before the suckers (6).
  4. Magazine according to one of the previous claims, wherein the vacuum acting on the suckers (6) is controlled in accordance with their speed and switches off earlier when the speed is higher.
  5. Magazine according to one of the previous claims, wherein the further support for the bottom blank is provided in the form of a roller bearing (4).
EP91113395A 1990-08-30 1991-08-09 Magazine for box blanks Expired - Lifetime EP0472980B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4027434 1990-08-30
DE4027434A DE4027434C2 (en) 1990-08-30 1990-08-30 Cardboard blank magazine

Publications (2)

Publication Number Publication Date
EP0472980A1 EP0472980A1 (en) 1992-03-04
EP0472980B1 true EP0472980B1 (en) 1995-07-19

Family

ID=6413229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113395A Expired - Lifetime EP0472980B1 (en) 1990-08-30 1991-08-09 Magazine for box blanks

Country Status (2)

Country Link
EP (1) EP0472980B1 (en)
DE (2) DE4027434C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111439449A (en) * 2020-04-28 2020-07-24 陈富威 Automatic packaging equipment's of folding blowing equipment of disposable gloves

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310310U1 (en) * 1993-07-10 1993-09-16 IWK Verpackungstechnik GmbH, 76297 Stutensee Storage device for folding boxes
US5538236A (en) * 1994-09-28 1996-07-23 Tetra Laval Holdings & Finance S.A. Vacuum assisted gate assembly for the carton blank magazine of a packaging machine
DE19945630A1 (en) * 1999-09-23 2001-04-05 Topack Verpacktech Gmbh Single sheets removal device for cigarette packing machine blanks implements stack of blanks resting on support strips in hopper
DE102006059809B4 (en) * 2006-12-15 2008-08-21 Rena Sondermaschinen Gmbh Device and method for separating and transporting substrates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156014B (en) * 1957-08-09 1963-10-17 Continental Can Co Magazine for packing sheets on machines for packing a group of items
US3429570A (en) * 1966-02-23 1969-02-25 Pneumatic Scale Corp Carton blank feeding
US4081945A (en) * 1976-11-15 1978-04-04 The Mead Corporation Packaging machine for use with cartons of different sizes with minimum adjustment
US4369962A (en) * 1981-02-17 1983-01-25 Murray Spiro Apparatus for feeding sheets
DE3112418A1 (en) * 1981-03-28 1982-10-07 TMF Schwenningen GmbH E. Haller, Maschinenfabrik, 7730 Villingen-Schwenningen Separating device for separating sheets of a sheet stack
IT1146453B (en) * 1981-06-11 1986-11-12 Cms Const Mecc Spec DEVICE FOR FEEDING CONTAINERS OR CASES IN TUBULAR ARRANGEMENT BY PICKING THEM FLAT FOLDED FROM THE BASE OF A FEED HOPPER IN BOXING MACHINES, CARTONING MACHINES AND SIMILAR
US5057066A (en) * 1988-04-28 1991-10-15 Tokyo Automatic Machinery Works, Ltd. Magazine and method of feeding articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111439449A (en) * 2020-04-28 2020-07-24 陈富威 Automatic packaging equipment's of folding blowing equipment of disposable gloves

Also Published As

Publication number Publication date
EP0472980A1 (en) 1992-03-04
DE4027434A1 (en) 1992-03-12
DE59106014D1 (en) 1995-08-24
DE4027434C2 (en) 1994-04-28

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