EP0374556B1 - Mechanism for sucking up and depositing a sheet - Google Patents

Mechanism for sucking up and depositing a sheet Download PDF

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Publication number
EP0374556B1
EP0374556B1 EP89122278A EP89122278A EP0374556B1 EP 0374556 B1 EP0374556 B1 EP 0374556B1 EP 89122278 A EP89122278 A EP 89122278A EP 89122278 A EP89122278 A EP 89122278A EP 0374556 B1 EP0374556 B1 EP 0374556B1
Authority
EP
European Patent Office
Prior art keywords
shaft
lever arms
suckers
eccentric
pivoted
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
EP89122278A
Other languages
German (de)
French (fr)
Other versions
EP0374556A3 (en
EP0374556A2 (en
Inventor
Jean-Pierre Corlier
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.)
4P Nicolaus Kempten GmbH
Original Assignee
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 4P Nicolaus Kempten GmbH filed Critical 4P Nicolaus Kempten GmbH
Publication of EP0374556A2 publication Critical patent/EP0374556A2/en
Publication of EP0374556A3 publication Critical patent/EP0374556A3/en
Application granted granted Critical
Publication of EP0374556B1 publication Critical patent/EP0374556B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/42—Separating articles from piles by two or more separators mounted for movement with, or relative to, rotary or oscillating bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/54—Driving mechanisms other
    • B65H2403/543—Driving mechanisms other producing cycloids

Definitions

  • the invention relates to a device for suctioning and applying a blank from cardboard or the like.
  • the suction cups With a plurality of suction cups and a rotating and transport device for the suction cups and the cuts, the suction cups being fastened to a shaft which can be rotated with its two end sections an eccentric drive or a corresponding eccentric bearing is mounted, both of which are rotatably seated on a lever arm pair, both arms of the lever arm pair being fixedly mounted on a likewise rotatable and driven shaft, on which a wheel is also mounted via a ball bearing, which stands still and is connected to the eccentric drive via a gear ratio.
  • the suction cups are attached to pivotally mounted lever arms, only participate in their pivoting movement between 60 ° and 90 ° and are able to deposit a cardboard blank from a stack onto a station immediately below.
  • the suction cups grip the blanks from below, remain on their underside and require space at the storage station in order to be able to deposit the blank.
  • Such a device is known from FR-A-2 487 310, which takes up a lot of space due to its gear device.
  • the invention has for its object to provide a device of the type mentioned, with which even relatively large blanks can be manipulated without the need to create space in the storage station for the suction cups and their carriers.
  • the device designed in this way can suck off blanks at any point on a circular path and likewise place the blank at any point on this circular path from the inside without thereby requiring a great deal of space for the moving device or for manipulating the blanks.
  • FIG. 1 denotes a device which has three pairs of lever arms 2, of which only three lever arms 4, 5, 6 combined on a common carrier 3 can be seen.
  • Each lever arm 4, 5 or 6 carries an eccentric drive 7 which is connected to a plurality of suction cups 9 via a shaft 8.
  • the carrier 3 sits firmly on a further rotatably mounted shaft 10, which in turn is driven.
  • FIG. 3 the device 11 is shown in FIG. 2 in longitudinal section, the attachment of the suction cups 9 to the shaft 8 is visible, which has a U-shaped course.
  • One angled end of the shaft 8 is supported on the eccentric drive 7, while the other angled end is supported on an eccentric bearing 17.
  • These eccentric bearings 17 are in turn rotatably attached to lever arms 14 and 15 of a carrier 23.
  • the eccentric bearing 7 is connected via a pin 18 to a gear 19, which in turn is connected via a toothed belt 20 to a further gear 21 which sits on the shaft 10 via a ball bearing and does not rotate with it.
  • a further gear wheel 24 is arranged around the pin 18 and has no connection with the pin, but is rigidly connected to the lever arm 4 or 5.
  • This gearwheel 24 is connected via a toothed belt 25 to a gearwheel 26 which is seated on the bearing journal 27 of the one end of the U-shaped shaft 8.
  • Corresponding pins 28 and bearing pins 37 are provided in the lever arms 14 and 15, respectively.
  • the suction devices 9 are connected via lines 29 and 30 to a vacuum pump, not shown, and are supplied by this with the vacuum required for suctioning blanks 31.
  • the entire device is rotated via the shaft 10 into the position required in each case, in which either a blank is to be suctioned off or applied. Simultaneously with this rotary movement, the suction cups 9 perform a lifting movement which extends between the two end positions A and B.
  • the movement of the blank 31 held by the suckers 9 during the rotational movement of the device indicated by the arrow P is shown in the two exemplary embodiments according to FIGS. 1 and 2.
  • the blank is always within the boundary lines of the entire device, the suction cups 9 always pointing outwards.
  • the blanks are also always within the limits of the device, but during the rotational movement the suction cups are turned inwards, so that the blanks are still further inside the device.
  • the size of the individual gears and thus the gear ratio present is adapted to the given requirements.

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

Description

Die Erfindung betrifft eine Einrichtung zum Absaugen und Anlegen eines Zuschnittes aus Karton od.dgl., mit mehreren Saugern und einer Dreh- und Transporteinrichtung für die Sauger und die Zuschnitte, wobei die Sauger auf einer Welle befestigt sind, die mit ihren beiden Endabschnitten drehbar auf einem Exzenterantrieb bzw. einem entsprechenden Exzenterlager gelagert ist, die beide drehbar an einem Hebelarm-Paar sitzen, wobei beide Arme des Hebelarm-Paares fest auf einer ebenfalls drehbaren und angetriebenen Welle gelagert sind, auf der außerdem ein Rad über ein Kugellager gelagert ist, das still steht und über eine Getriebeübersetzung mit dem Exzenterantrieb verbunden ist.The invention relates to a device for suctioning and applying a blank from cardboard or the like., With a plurality of suction cups and a rotating and transport device for the suction cups and the cuts, the suction cups being fastened to a shaft which can be rotated with its two end sections an eccentric drive or a corresponding eccentric bearing is mounted, both of which are rotatably seated on a lever arm pair, both arms of the lever arm pair being fixedly mounted on a likewise rotatable and driven shaft, on which a wheel is also mounted via a ball bearing, which stands still and is connected to the eccentric drive via a gear ratio.

Bei den bekannten Einrichtungen dieser Art sind die Sauger an schwenkbar gelagerten Hebelarmen befestigt, machen ausschließlich deren zwischen 60° und 90° betragende Schwenkbewegung mit und vermögen einen Karton-Zuschnitt von einem Stapel auf eine unmittelbar darunterliegende Station abzulegen. Dabei greifen die Sauger von unten an den Zuschnitten an, bleiben auf deren Unterseite und benötigen an der Ablagestation Raum, um den Zuschnitt ablegen zu können.In the known devices of this type, the suction cups are attached to pivotally mounted lever arms, only participate in their pivoting movement between 60 ° and 90 ° and are able to deposit a cardboard blank from a stack onto a station immediately below. The suction cups grip the blanks from below, remain on their underside and require space at the storage station in order to be able to deposit the blank.

Aus der FR-A-2 487 310 ist eine derartige Einrichtung bekannt, die durch ihre Getriebeeinrichtung sehr viel Platz beansprucht.Such a device is known from FR-A-2 487 310, which takes up a lot of space due to its gear device.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der genannten Art zu schaffen, mit der auch verhältnismäßig große Zuschnitte manipuliert werden können, ohne daß deswegen Platz in der Ablagestation für die Sauger und deren Träger geschaffen werden müßte.The invention has for its object to provide a device of the type mentioned, with which even relatively large blanks can be manipulated without the need to create space in the storage station for the suction cups and their carriers.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die die Sauger tragende Welle U-förmig ausgebildet ist.This object is achieved in that the shaft carrying the suction cups is U-shaped.

Die so ausgebildete Einrichtung kann an jeder beliebigen Stelle einer Kreisbahn Zuschnitte absaugen und ebenfalls an beliebiger Stelle dieser Kreisbahn den Zuschnitt von innen her ablegen, ohne daß dadurch sehr viel Raum für die sich bewegende Einrichtung oder für die Manipulation der Zuschnitte benötigt wird.The device designed in this way can suck off blanks at any point on a circular path and likewise place the blank at any point on this circular path from the inside without thereby requiring a great deal of space for the moving device or for manipulating the blanks.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß zwei einander diametral gegenüberliegende Hebelarm-Paare vorgesehen sind, die jeweils eine U-förmig verlaufende Welle mit Saugern tragen.In an advantageous embodiment of the invention it is provided that two diametrically opposed lever arm pairs are provided, each of which carries a U-shaped shaft with suction cups.

Damit ist eine äußerst rationell arbeitende Einrichtung geschaffen, die in sehr schneller Folge Zuschnitte aus Karton auch in verhältnismäßig großem Format absaugen und an anderer Stelle ablegen kann.This creates an extremely efficient facility that can suck up blanks from cardboard in a relatively large format and place them elsewhere in very quick succession.

Sehr vorteilhaft ist es auch, wenn erfindungsgemäß drei Hebelarm-Paare auf der drehbar gelagerten und angetriebenen Welle befestigt sind, die Exzenterantriebe bzw. Exzenterlager tragen.It is also very advantageous if, according to the invention, three pairs of lever arms are attached to the rotatably mounted and driven shaft, which carry eccentric drives or eccentric bearings.

Damit ist ermöglicht, daß die Sauger nach dem Ablegen der Zuschnitte nicht zurücktransportiert werden müssen, sondern weiterlaufen können, da die Sauger des nachfolgenden Hebelarm-Paares zum Absaugen des nächsten Zuschnittes zur Verfügung stehen.This makes it possible that the suction cups do not have to be transported back after the blanks have been put down, but can continue to run, since the suction cups of the subsequent lever arm pair are available for suctioning off the next blank.

In der Zeichnung ist die Erfindung anhand mehrerer Ausführungsbeispiele veranschaulicht. Dabei zeigen:

  • Fig. 1 eine schematische Seitenansicht einer Einrichtung zum Absaugen und Anlegen von Zuschnitten aus Karton mit drei Hebelarm-Paaren,
  • Fig. 2 eine schematisierte Seitenansicht einer ähnlichen Einrichtung mit zwei Hebelarm-Paaren,
  • Fig. 3 einen Längsschnitt durch eine Einrichtung gemäß Fig. 2 mit zwei Hebelarm-Paaren und
  • Fig. 4 eine Schemazeichnung des Transportes von Zuschnitten innerhalb der Einrichtung.
The invention is illustrated in the drawing using several exemplary embodiments. Show:
  • 1 is a schematic side view of a device for suctioning and applying blanks from cardboard with three pairs of lever arms,
  • 2 is a schematic side view of a similar device with two pairs of lever arms,
  • Fig. 3 shows a longitudinal section through a device according to FIG. 2 with two pairs of lever arms and
  • Fig. 4 is a schematic drawing of the transport of blanks within the facility.

Mit 1 ist in Fig. 1 eine Einrichtung bezeichnet, die drei Hebelarm-Paare 2 aufweist, von denen nur drei an einem gemeinsamen Träger 3 vereinigte Hebelarme 4,5,6 zu sehen sind. Jeder Hebelarm 4,5 bzw. 6 trägt einen Exzenterantrieb 7, der über eine Welle 8 mit mehreren Saugern 9 verbunden ist. Der Träger 3 sitzt fest auf einer weiteren drehbar gelagerten Welle 10, die ihrerseits angetrieben ist.1 in FIG. 1 denotes a device which has three pairs of lever arms 2, of which only three lever arms 4, 5, 6 combined on a common carrier 3 can be seen. Each lever arm 4, 5 or 6 carries an eccentric drive 7 which is connected to a plurality of suction cups 9 via a shaft 8. The carrier 3 sits firmly on a further rotatably mounted shaft 10, which in turn is driven.

Beim Ausführungsbeispiel nach Fig. 2 sind an einem gemeinsamen Träger 13 lediglich zwei Hebelarme 4 und 5 angeordnet; im übrigen unterscheidet sich diese Einrichtung 11 nicht vom vorhergehenden Beispiel.2, only two lever arms 4 and 5 are arranged on a common carrier 13; otherwise this device 11 does not differ from the previous example.

In Fig. 3 ist die Einrichtung 11 gemäß Fig. 2 im Längsschnitt dargestellt, wobei die Befestigung der Sauger 9 an der Welle 8 sichtbar ist, die einen U-förmigen Verlauf hat. Das eine abgewinkelte Ende der Welle 8 ist am Exzenterantrieb 7 gelagert, während das andere ebenfalls abgewinkelte Ende an einem Exzenterlager 17 gelagert ist. Diese Exzenterlager 17 sind ihrerseits drehbar an Hebelarmen 14 bzw. 15 eines Trägers 23 befestigt.
Das Exzenterlager 7 ist über einen Zapfen 18 mit einem Zahnrad 19 verbunden, das seinerseits über einen Zahnriemen 20 mit einem weiteren Zahnrad 21 in Verbindung steht, das über ein Kugellager auf der Welle 10 sitzt und sich nicht mit dieser dreht.In Fig. 3 the device 11 is shown in FIG. 2 in longitudinal section, the attachment of the suction cups 9 to the shaft 8 is visible, which has a U-shaped course. One angled end of the shaft 8 is supported on the eccentric drive 7, while the other angled end is supported on an eccentric bearing 17. These eccentric bearings 17 are in turn rotatably attached to lever arms 14 and 15 of a carrier 23.
The eccentric bearing 7 is connected via a pin 18 to a gear 19, which in turn is connected via a toothed belt 20 to a further gear 21 which sits on the shaft 10 via a ball bearing and does not rotate with it.

Um den Zapfen 18 herum ist ein weiteres Zahnrad 24 angeordnet, das mit dem Zapfen keine Verbindung hat, sondern mit dem Hebelarm 4 bzw. 5 starr verbunden ist. Dieses Zahnrad 24 ist über einen Zahnriemen 25 mit einem Zahnrad 26 verbunden, das auf dem Lagerzapfen 27 des einen Endes der U-förmig verlaufenden Welle 8 sitzt. In den Hebelarmen 14 bzw. 15 sind entsprechende Zapfen 28 bzw. Lagerzapfen 37 vorgesehen. Die Sauger 9 sind über Leitungen 29 und 30 an eine nicht dargestellte Unterdruckpumpe angeschlossen und werden von dieser mit dem zum Absaugen von Zuschnitten 31 erforderlichen Unterdruck versorgt.A further gear wheel 24 is arranged around the pin 18 and has no connection with the pin, but is rigidly connected to the lever arm 4 or 5. This gearwheel 24 is connected via a toothed belt 25 to a gearwheel 26 which is seated on the bearing journal 27 of the one end of the U-shaped shaft 8. Corresponding pins 28 and bearing pins 37 are provided in the lever arms 14 and 15, respectively. The suction devices 9 are connected via lines 29 and 30 to a vacuum pump, not shown, and are supplied by this with the vacuum required for suctioning blanks 31.

Über die Welle 10 wird die gesamte Einrichtung in die jeweils benötigte Position gedreht, in der entweder ein Zuschnitt abgesaugt oder angelegt werden soll. Gleichzeitig mit dieser Drehbewegung vollziehen die Sauger 9 eine Hubbewegung, die sich zwischen den beiden Endpositionen A und B erstreckt. Die Bewegung des von den Saugern 9 gehaltenen Zuschnittes 31 während der durch den Pfeil P angezeigten Drehbewegung der Einrichtung ist in den beiden Ausführungsbeispielen nach Fig. 1 und 2 dargestellt. Der Zuschnitt befindet sich dabei stets innerhalb der Begrenzungslinien der gesamten Einrichtung, wobei die Sauger 9 immer nach außen zeigen.The entire device is rotated via the shaft 10 into the position required in each case, in which either a blank is to be suctioned off or applied. Simultaneously with this rotary movement, the suction cups 9 perform a lifting movement which extends between the two end positions A and B. The movement of the blank 31 held by the suckers 9 during the rotational movement of the device indicated by the arrow P is shown in the two exemplary embodiments according to FIGS. 1 and 2. The blank is always within the boundary lines of the entire device, the suction cups 9 always pointing outwards.

Bei dem in Fig. 4 schematisch dargestellten Ausführungsbeispiel befinden sich die Zuschnitte zwar ebenfalls stets innerhalb der Begrenzungen der Einrichtung, doch werden während der Drehbewegung die Sauger nach innen gedreht, so daß sich die Zuschnitte noch weiter innerhalb der Einrichtung befinden.In the exemplary embodiment shown schematically in FIG. 4, the blanks are also always within the limits of the device, but during the rotational movement the suction cups are turned inwards, so that the blanks are still further inside the device.

Die Größe der einzelnen Zahnräder und damit die vorliegende Getriebeübersetzung ist an die jeweils gegebenen Erfordernisse angepaßt.The size of the individual gears and thus the gear ratio present is adapted to the given requirements.

Claims (3)

  1. Apparatus for the suction removal and release of a blank made from board or a similar material, with a number of suckers (9) and a unit (1) for turning and transporting the suckers and blanks, where suckers are attached to a shaft (8), the ends of which are pivoted in one case on an eccentric drive (7) and in the other case on an appropriate eccentric bearing (17), both of which are pivoted on a pair of lever arms (2), both arms (4,5) of the pair of lever arms being fixed to a pivoted and driven shaft (10), on which a wheel (21) that is immobile and is connected to the eccentric drive (7) by a gear transmission (19,20) is also mounted via a ball bearing, wherein the shaft (8) with the suckers (9) is U-shaped.
  2. Apparatus according to claim 1, wherein two pairs of lever arms (4,5) located diametrically opposite each other are provided, each of which supports a U-shaped shaft (8) with suckers (9).
  3. Apparatus according to claim 1, wherein three pairs of lever arms (4,5,6) are fixed to the pivoted and driven shaft (10) which support eccentric drives (7) and eccentric bearings (17).
EP89122278A 1988-12-23 1989-12-02 Mechanism for sucking up and depositing a sheet Expired - Lifetime EP0374556B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843419 1988-12-23
DE3843419A DE3843419A1 (en) 1988-12-23 1988-12-23 DEVICE FOR SUCTION AND APPLICATION OF A CUT

Publications (3)

Publication Number Publication Date
EP0374556A2 EP0374556A2 (en) 1990-06-27
EP0374556A3 EP0374556A3 (en) 1991-03-27
EP0374556B1 true EP0374556B1 (en) 1994-10-19

Family

ID=6369961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122278A Expired - Lifetime EP0374556B1 (en) 1988-12-23 1989-12-02 Mechanism for sucking up and depositing a sheet

Country Status (4)

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EP (1) EP0374556B1 (en)
DE (2) DE3843419A1 (en)
DK (1) DK661189A (en)
PT (1) PT92693A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664883B1 (en) * 1990-07-20 1993-03-19 Esatec ROTARY MARGIN FOR PRECISE PLACEMENT OF SHEET ELEMENTS ON FLAT SUPPORTS.
EP0709164B1 (en) * 1994-10-28 1999-03-31 Bystronic Maschinen AG Installation for machining plates
DE4439723A1 (en) * 1994-11-09 1996-05-15 Assidomaen Packmaster Gmbh Separating system for cardboard sections in packing machine
IT1401817B1 (en) * 2010-09-20 2013-08-28 Baumer Srl ROTARY SYSTEM FOR TAKING, CARRYING AND FEEDING DIE CUTS
EP4023578A1 (en) * 2020-12-29 2022-07-06 IAI Industrial systems B.V. Handling device for a flat piece

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915308A (en) * 1957-12-26 1959-12-01 Julius C Matzen Automatic feeding machines
DE2547132C2 (en) * 1975-10-21 1984-08-09 H.J. Langen & Sons Ltd., Rexdale, Ontario Device for removing flat objects from a delivery station
DE3028494C2 (en) * 1980-07-26 1984-04-19 Chr. Weiersmüller VerpackungsSysteme GmbH & Co Vertriebs-KG, 8500 Nürnberg Device for the continuous removal of foils from a stack and for placing them on a processing base

Also Published As

Publication number Publication date
DE3843419A1 (en) 1990-06-28
DE58908533D1 (en) 1994-11-24
DK661189A (en) 1990-06-24
DK661189D0 (en) 1989-12-22
EP0374556A3 (en) 1991-03-27
DE3843419C2 (en) 1992-02-20
EP0374556A2 (en) 1990-06-27
PT92693A (en) 1990-06-29

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