EP0433667A1 - Apparatus for transferring flat objects - Google Patents

Apparatus for transferring flat objects Download PDF

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Publication number
EP0433667A1
EP0433667A1 EP19900121926 EP90121926A EP0433667A1 EP 0433667 A1 EP0433667 A1 EP 0433667A1 EP 19900121926 EP19900121926 EP 19900121926 EP 90121926 A EP90121926 A EP 90121926A EP 0433667 A1 EP0433667 A1 EP 0433667A1
Authority
EP
European Patent Office
Prior art keywords
planet
holder
axis
rotor
cam
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.)
Granted
Application number
EP19900121926
Other languages
German (de)
French (fr)
Other versions
EP0433667B1 (en
Inventor
Walter Dietrich
Eberhard Dipl.-Ing. Krieger (Fh)
Siegfried Dipl.-Ing. Weber
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0433667A1 publication Critical patent/EP0433667A1/en
Application granted granted Critical
Publication of EP0433667B1 publication Critical patent/EP0433667B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B65B43/185—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers specially adapted for carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/265—Opening, erecting or setting-up boxes, cartons or carton blanks
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • 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
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically
    • B31B50/804—Pneumatically using two or more suction devices on a rotating element

Definitions

  • the invention relates to a device for transferring flat objects, in particular folding boxes, from a delivery station to a receiving station according to the preamble of claim 1.
  • a device of this type which has become known, for example, from EP-A-1 34 628, there is a point of reversal the cycloidal path of the holder between the delivery station and the receiving station a fixed suction cup is arranged, which, when a holder with a flat-lying folding box enters the reversal point, temporarily detects that wall of the folding box which is opposite the wall held by the holder, so that when the holder runs out the reversal point the folding box held by the holder and the suction cup is erected.
  • folding boxes Since there is only a very short time available for erecting and the movement path of the folding box is not adapted to the required erecting movement, the folding boxes cannot be opened fully to the rectangular shape. In addition, folding boxes made of a relatively stiff packaging material almost resume their flat shape due to the tension in the packaging material after being released from the vacuum cleaner.
  • the device according to the invention with the characterizing features of claim 1 has the advantage that the objects held by the holders during transfer are affected by the action of a moving element in their position, for example folding boxes can be erected or rotated during transfer.
  • This influencing can advantageously be carried out over almost the entire transfer route, so that a relatively long period of time is available for the influencing process.
  • Such controlled influencing cannot be carried out by a curve element mounted on the frame of the device, since the lever moved by the curve, which is arranged on the planetary part, is subjected to complex movements, including back and forth movements with respect to the curve element, which is a desired one Make movement impossible.
  • the specified arrangement of the curve element ensures that the influencing is carried out exactly by this.
  • the development according to claim 2 is particularly advantageous since the folding boxes can not only be erected with the finger pivoted during their transfer but can even be pushed over.
  • FIG. 1 shows a folding box transfer device in a front view
  • FIG. 2 shows the device according to FIG. 1 in longitudinal section in the plane II-II of FIG. 1
  • FIG. 3 shows the device according to FIGS. 1 and 2 in a different working position compared to FIG. 1 and FIG. 4 a transfer device for flat objects simplified in front view.
  • the folding box transfer device is arranged between a magazine 10 with a delivery station A for flat-lying folding boxes 1 and a conveyor device 15 equipped with drivers 16, 17 with a transfer station B of a cartoning machine.
  • the device has three holders 22 which are offset by 120 degrees on the circumference of a rotor and each comprise two pairs of suction cups 23, 24.
  • one pair of suction cups 23, 24 is arranged congruently with the other pair at the ends of two three-armed holding stars 25, which are also fastened congruently on a central axis 26 of the rotor 20.
  • the holding stars 25 are arranged on the axis 26 such that they cannot rotate and are adjustable at a distance from one another.
  • the holders 22 are guided for transferring folding boxes 1 from the dispensing station A of the magazine 10 to the receiving station B of the conveying device 15 on a cycloid path C, a point approximately in the middle between the two suction cups 23, 24 of a pair being a path with four reversal points F , G, H, I with concave curves in between.
  • the rotor 20 is mounted as a planetary part with an extension 31 of its axis 26 so that it can be rotated eccentrically and axially parallel to the drive axis 32 of a planet carrier 30.
  • the extension 31 carries a planet gear 33 which meshes with an intermediate gear 34 which is also rotatably mounted in the planet carrier 30.
  • the intermediate wheel 34 is also in engagement with a sun gear 35, which is fixedly connected to the bearing eye 36 of the frame 37, in which the drive shaft 32 of the planet carrier 30 is mounted.
  • the gear ratio between the sun gear 35 and the planet gear 33 is 4: 3.
  • the radial distance of the suction surface of the individual holders 22 from the axis of rotation of the rotor 20 is in the region of three times the eccentricity of the rotor 20 from the planet carrier 30.
  • each suction cup pair 23, 24 of the holder 22 is assigned an angled pressing finger 40 so that it can pivot.
  • the press-on fingers 40 which are also arranged in pairs, are pivoted when a folding box 1 is transferred against the adjacent wall 3 connected to the wall 2 held by the suction cups 23, 24 via a folding line, so that a roller 41 arranged on its free, angled end is attached to the wall 3 attached, the folding box 1 erects.
  • the press-on fingers 40 are rotatably mounted in the holding stars 25 with eyes 42 which are penetrated in pairs by a square shaft 43 which is axially parallel to the axis 26.
  • the square shafts 43 which are rotatably mounted in a disk 44 fastened on the axle 26, carry a lever 45 with a roller 46 at their free end.
  • the rollers 46 of the levers 45 are guided in a cam groove 51 of a cam disk 50.
  • the cam disc 50 is rotatably mounted on the axis 26 of the rotor 20 in addition to the disc 44. It is also firmly connected to a coupling 52 which is articulated on a rocker 53 mounted on the frame, so that the Cam 50 rotates when rotating the planet carrier 30 on the circular path K of the axis 26 of the rotor 20, but does not rotate with the rotor 20, but stands still relative to this.
  • the levers 45 are pivoted so that the push-on fingers 40 are pivoted on the rail route from the delivery station A to the receiving station B against the folding box 1 held by the associated holders 22 and thereby on the one wall 4 adjacent this pivots about the fold line that connects the wall 4 with the wall 2 gripped by the holder 22, the folding box 1 being erected and even broken into a parallelogram (FIG. 3).
  • the levers 45 are pivoted back on the rail section between the receiving station B and the delivery station A.
  • Control grooves 55, 56 are arranged radially within the cam groove 51.
  • One control groove 55 is connected to a vacuum source and the other 56 to the ambient air.
  • three bores are arranged in the disk 44 offset by 120 degrees, from which lines 57, 58 lead to the suction cups 23, 24 of the holder 22.
  • a holder 22 has two suction cups 23, 24 on one arm of the two holding stars 25.
  • the exemplary embodiment according to FIG. 4 in which different parts are not drawn compared to the exemplary embodiment described above for better clarity, is constructed similarly to the exemplary embodiment according to FIGS. 1 to 3, which is why the same terms and reference numerals are used below for the same parts . It differs essentially in that flat objects, for example cards 5, are transferred from the stack 10 of the delivery station A to the receiving station B, these objects being additionally rotated by 90 degrees about their transverse axis on the transfer path.
  • the holders 22 are rotatably mounted about an axis 60 that is radial to the axis 26 of the rotor 20.
  • the rotor 20 has only a single retaining star 25 on its axis 26, at the free ends of which only one suction pad 61 is arranged as the holder 22.
  • the radially inner end of each axis 60 carries a bevel gear 62, which meshes with a second bevel gear 63, which is rotatably mounted parallel to the axis 26 of the rotor 20 in the retaining star 25 with an axis 64.
  • a lever 65 is fixedly connected to a roller 66 which is guided in the cam groove 67 of a cam disk 68.
  • this cam disk 68 is also rotatably mounted on the shaft 26 of the rotor 22 and is connected via a coupling 52 to a fixed rocker arm 53.
  • This arrangement ensures that when the planet carrier 30 rotates, the rotor 20 rotates on the circular path K and is additionally rotated about its axis 26 by the planetary gear mechanism, the holder 22 showing the cycloid path C shown in broken lines with the reversal points F, G, H, I go through.

Abstract

Eine Vorrichtung zum Entnehmen flacher Gegenstände (1; 5) aus einem Magazin (10) und zum Überführen dieser zu einer Fördervorrichtung (15) hat einen Rotor (20), auf dessen Umfang gleichmäßig versetzte Halter (22) angeordnet sind. Der Rotor (20) ist als Planetenteil in einem sich drehenden Planetenträger (30) drehbar gelagert und wird beim Umlaufen durch ein Planetenradgetriebe (33, 34, 35) zusätzlich um seine Achse (26) gedreht. Dabei durchlaufen die Halter (22) eine in sich geschlossene Zykloidenbahn (C) mit vier Umkehrpunkten (F, G, H, I) und dazwischenliegenden konkaven Kurvenbögen. Zum Einwirken auf die Gegenstände, wie beispielsweise Aufdrücken einer Faltschachtel (5) oder Drehen um eine Querachse ist auf der Achse (26) des Rotors (20) eine Kurvenscheibe (50; 68) drehbar gelagert, die am Mitdrehen mit dem Rotor durch Koppelung mit einer ortsfest gelagerten Schwinge (53) gehindert ist. Ein mit einer Rolle (41; 66) in der Kurvennut (51; 67) geführter Hebel (45; 65) wirkt auf einen schwenkbaren Aufdrückfinger (40) oder auf den drehbar gelagerten Halter (23). <IMAGE>A device for removing flat objects (1; 5) from a magazine (10) and for transferring them to a conveying device (15) has a rotor (20) on the circumference of which holders (22) which are evenly offset are arranged. The rotor (20) is rotatably supported as a planetary part in a rotating planet carrier (30) and is additionally rotated about its axis (26) by a planetary gear (33, 34, 35). The holders (22) pass through a self-contained cycloid path (C) with four reversal points (F, G, H, I) and concave curves between them. In order to act on the objects, such as pressing on a folding box (5) or rotating about a transverse axis, a cam (50; 68) is rotatably mounted on the axis (26) of the rotor (20), which cam to rotate with the rotor by coupling with a fixed rocker arm (53) is prevented. A lever (45; 65) guided with a roller (41; 66) in the cam groove (51; 67) acts on a pivotable press-on finger (40) or on the rotatably mounted holder (23). <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Vorrichtung zum Überführen von flachen Gegenständen, insbesondere von Faltschachteln von einer Abgabestation zu einer Aufnahmestation nach der Gattung des Anspruchs 1. Bei einer beispielsweise durch die EP-A-1 34 628 bekannt gewordenen Vorrichtung dieser Art ist in einem Umkehrpunkt der Zykloidenbahn der Halter zwischen der Abgabestation und der Aufnahmestation ein ortsfester Sauger angeordnet, der beim Einlaufen eines Halters mit einer flachliegenden Faltschachtel in den Umkehrpunkt diejenige Wand der Faltschachtel vorübergehend erfaßt, die der von dem Halter gehaltenen Wand gegenüberliegt, so daß beim Auslaufen des Halters aus dem Umkehrpunkt die vom Halter und vom Sauger gehaltene Faltschachtel aufgerichtet wird. Da für das Aufrichten nur eine sehr kurze Zeit zur Verfügung steht und die Bewegungsbahn der Faltschachtel nicht der erforderlichen Aufrichtebewegung angepaßt ist, können die Faltschachteln nicht voll bis zur Reckteckform geöffnet werden. Außerdem nehmen Faltschachteln aus einem relativ steifen Packstoff aufgrund der Spannungen im Packstoff nach dem Loslassen vom Sauger nahezu die flache Form wieder an.The invention relates to a device for transferring flat objects, in particular folding boxes, from a delivery station to a receiving station according to the preamble of claim 1. In a device of this type which has become known, for example, from EP-A-1 34 628, there is a point of reversal the cycloidal path of the holder between the delivery station and the receiving station a fixed suction cup is arranged, which, when a holder with a flat-lying folding box enters the reversal point, temporarily detects that wall of the folding box which is opposite the wall held by the holder, so that when the holder runs out the reversal point the folding box held by the holder and the suction cup is erected. Since there is only a very short time available for erecting and the movement path of the folding box is not adapted to the required erecting movement, the folding boxes cannot be opened fully to the rectangular shape. In addition, folding boxes made of a relatively stiff packaging material almost resume their flat shape due to the tension in the packaging material after being released from the vacuum cleaner.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß die von den Haltern beim Überführen festgehaltenen Gegenstände durch Einwirkung eines bewegten Elements in ihrer Lage beeinflußt, beispielsweise Faltschachteln während ihrer Überführung aufgerichtet oder gedreht werden können. Diese Beeinflussung kann vorteilhaft auf nahezu der ganzen Überführstrecke durchgeführt werden, so daß für den Beeinflussungsvorgang eine verhältnismäßig lange Zeitdauer zur Verfügung steht. Eine solche gesteuerte Beeinflussung kann von einem am Gestell der Vorrichtung angebauten Kurvenelement nicht durchgeführt werden, da der von der Kurve bewegte Hebel, der an dem Planetenteil angeordnet ist, komplexe Bewegungen, unter anderem Vor- und Rückwärtsbewegungen bezüglich des Kurvenelements ausgesetzt ist, die eine gewünschte Bewegung unmöglich machen. Dagegen wird durch die angegebene Anordnung des Kurvenelements gewährleistet, daß von diesem die Beeinflussung exakt durchgeführt wird.The device according to the invention with the characterizing features of claim 1 has the advantage that the objects held by the holders during transfer are affected by the action of a moving element in their position, for example folding boxes can be erected or rotated during transfer. This influencing can advantageously be carried out over almost the entire transfer route, so that a relatively long period of time is available for the influencing process. Such controlled influencing cannot be carried out by a curve element mounted on the frame of the device, since the lever moved by the curve, which is arranged on the planetary part, is subjected to complex movements, including back and forth movements with respect to the curve element, which is a desired one Make movement impossible. In contrast, the specified arrangement of the curve element ensures that the influencing is carried out exactly by this.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Ausgestaltungen der im Anspruch 1 angegebenen Vorrichtung möglich.The measures listed in the subclaims allow advantageous configurations of the device specified in claim 1.

Besonders vorteilhaft ist die Weiterbildung nach Anspruch 2, da die Faltschachteln mit dem während ihres Überführens verschwenkten Finger nicht nur aufgerichtet sondern sogar überdrückt werden können.The development according to claim 2 is particularly advantageous since the folding boxes can not only be erected with the finger pivoted during their transfer but can even be pushed over.

Durch die Ausbildung nach Anspruch 3 ist es möglich, den von einem Halter gehaltenen Gegenstand in seiner Lage zu verändern, beispielsweise um seine Querachse zu drehen, so daß er bei der Übergabe in die Aufnahmestation eine gegenüber seiner ursprünglichen Lage in der Abgabestation gedrehte Lage einnimmt.Due to the design according to claim 3, it is possible to change the position of the object held by a holder, for example to rotate it about its transverse axis, so that it assumes a position rotated relative to its original position in the delivery station when it is transferred to the receiving station.

Zeichnungdrawing

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher erläutert. Es zeigen Figur 1 eine Faltschachtel-Überführvorrichtung in Vorderansicht, Figur 2 die Vorrichtung nach Figur 1 im Längsschnitt in der Ebene II-II der Figur 1, Figur 3 die Vorrichtung nach Figur 1 und 2 vereinfacht in einer anderen Arbeitsstellung gegenüber Figur 1 und Figur 4 eine Überführvorrichtung für flache Gegenstände vereinfacht in Vorderansicht.Two embodiments of the invention are shown in the drawing and are explained in more detail below. 1 shows a folding box transfer device in a front view, FIG. 2 shows the device according to FIG. 1 in longitudinal section in the plane II-II of FIG. 1, FIG. 3 shows the device according to FIGS. 1 and 2 in a different working position compared to FIG. 1 and FIG. 4 a transfer device for flat objects simplified in front view.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Die Faltschachtel-Überführvorrichtung ist zwischen einem Magazin 10 mit einer Abgabestation A für flachliegende Faltschachteln 1 und einer mit Mitnehmern 16, 17 ausgerüsteten Fördervorrichtung 15 mit einer Übernahmestation B einer Kartoniermaschine angeordnet. Zum Entnehmen und Halten von Faltschachteln 1 hat die Vorrichtung drei auf dem Umfang eines Rotors um 120 Grad versetzte Halter 22, die je zwei Paar Sauger 23, 24 umfassen. Jeweils ein Paar Sauger 23, 24 ist deckungsgleich mit dem anderen Paar an den Enden von zwei dreiarmigen Haltesternen 25 angeordnet, die ebenfalls deckungsgleich auf einer zentralen Achse 26 des Rotors 20 befestigt sind. Die Haltesterne 25 sind auf der Achse 26 drehsicher und im Abstand zueinander einstellbar angeordnet.The folding box transfer device is arranged between a magazine 10 with a delivery station A for flat-lying folding boxes 1 and a conveyor device 15 equipped with drivers 16, 17 with a transfer station B of a cartoning machine. To remove and hold folding boxes 1, the device has three holders 22 which are offset by 120 degrees on the circumference of a rotor and each comprise two pairs of suction cups 23, 24. In each case one pair of suction cups 23, 24 is arranged congruently with the other pair at the ends of two three-armed holding stars 25, which are also fastened congruently on a central axis 26 of the rotor 20. The holding stars 25 are arranged on the axis 26 such that they cannot rotate and are adjustable at a distance from one another.

Die Halter 22 werden zum Überführen von Faltschachteln 1 von der Abgabestation A des Magazins 10 zur Aufnahmestation B der Fördervorrichtung 15 auf einer Zykloidenbahn C geführt, wobei ein Punkt etwa in der Mitte zwischen den beiden Saugern 23, 24 eines Paares eine Bahn mit vier Umkehrpunkten F, G, H, I mit dazwischenliegenden konkaven Kurvenbögen durchläuft. Zum Erzeugen dieser Zykloidenbahn C ist bei dem dargestellten Ausführungsbeispiel der Rotor 20 als Planetenteil mit einer Verlängerung 31 seiner Achse 26 exzentrisch und achsparallel drehbar zur Antriebsachse 32 eines Planetenträgers 30 gelagert. Die Verlängerung 31 trägt ein Planeten-Zahnrad 33, das mit einem ebenfalls im Planetenträger 30 drehbar gelagerten Zwischenrad 34 kämmt. Das Zwischenrad 34 steht außerdem im Eingriff mit einem Sonnen-Zahnrad 35, das fest mit dem Lagerauge 36 des Gestells 37 verbunden ist, in dem die Antriebsachse 32 des Planetenträgers 30 gelagert ist. Das Übersetzungsverhältnis zwischen dem Sonnenrad 35 und dem Planetenrad 33 beträgt 4:3. Der radiale Abstand der Saugfläche der einzelnen Halter 22 zur Drehachse des Rotors 20 liegt im Bereich des Dreifachen der Exzentrizität des Rotors 20 zum Planetenträger 30.The holders 22 are guided for transferring folding boxes 1 from the dispensing station A of the magazine 10 to the receiving station B of the conveying device 15 on a cycloid path C, a point approximately in the middle between the two suction cups 23, 24 of a pair being a path with four reversal points F , G, H, I with concave curves in between. To create this cycloid orbit C In the exemplary embodiment shown, the rotor 20 is mounted as a planetary part with an extension 31 of its axis 26 so that it can be rotated eccentrically and axially parallel to the drive axis 32 of a planet carrier 30. The extension 31 carries a planet gear 33 which meshes with an intermediate gear 34 which is also rotatably mounted in the planet carrier 30. The intermediate wheel 34 is also in engagement with a sun gear 35, which is fixedly connected to the bearing eye 36 of the frame 37, in which the drive shaft 32 of the planet carrier 30 is mounted. The gear ratio between the sun gear 35 and the planet gear 33 is 4: 3. The radial distance of the suction surface of the individual holders 22 from the axis of rotation of the rotor 20 is in the region of three times the eccentricity of the rotor 20 from the planet carrier 30.

Zum Aufrichten der aus dem Magazin 10 entnommenen Faltschachteln 1, die von den Haltern 22 an einer Wand 2 einer Faltschachtel 1 durch Unterdruck gehalten werden, ist jedem Saugerpaar 23, 24 der Halter 22 ein abgewinkelter Aufdrückfinger 40 schwenkbar zugeordnet. Die ebenfalls paarweise angeordneten Aufdrückfinger 40 werden beim Überführen einer Faltschachtel 1 gegen die über eine Faltlinie mit der von den Saugern 23, 24 festgehaltenen Wand 2 verbundene angrenzende Wand 3 geschwenkt, so daß eine an ihrem freien, abgewinkelten Ende angeordnete Rolle 41 an der Wand 3 anliegend, die Faltschachtel 1 aufrichtet. Die Aufdrückfinger 40 sind in den Haltesternen 25 mit Augen 42 drehbar gelagert, die paarweise von je einer zur Achse 26 achsparallelen Vierkantwelle 43 durchsetzt werden. Die Vierkantwellen 43, die in einer auf der Achse 26 befestigten Scheibe 44 drehbar gelagert sind, tragen an ihrem freien Ende einen Hebel 45 mit einer Rolle 46. Die Rollen 46 der Hebel 45 sind in einer Kurvennut 51 einer Kurvenscheibe 50 geführt. Die Kurvenscheibe 50 ist neben der Scheibe 44 drehbar auf der Achse 26 des Rotors 20 gelagert. Sie ist außerdem mit einer Koppel 52 fest verbunden, die an einer am Gestell gelagerten Schwinge 53 angelenkt ist, so daß die Kurvenscheibe 50 beim Drehen des Planetenträgers 30 auf der Kreisbahn K der Achse 26 des Rotors 20 umläuft, sich jedoch nicht mit dem Rotor 20 dreht, sondern relativ zu diesem stillsteht. Dadurch werden durch die Form der Kurvennut 51 der Kurvenscheibe 50 die Hebel 45 so verschwenkt, daß die Aufdrückfinger 40 auf der Bahnstrecke von der Abgabestation A zur Aufnahmestation B gegen die von den zugeordneten Haltern 22 jeweils gehaltene Faltschachtel 1 geschwenkt werden und dabei an der einen Wand 4 anliegend diese um die Faltlinie, die die Wand 4 mit der von dem Halter 22 erfaßten Wand 2 verbindet, schwenkt, wobei die Faltschachtel 1 aufgerichtet und sogar zu einem Parallelogramm überbrochen wird (Figur 3). Nach dem Übergeben der geöffneten Faltschachtel 1 in der Aufnahmestation B zwischen die Mitnehmer 16, 17 der Fördervorrichtung 15 werden die Hebel 45 auf der Bahnstrecke zwischen der Aufnahmestation B und der Abgabestation A wieder zurückgeschwenkt.In order to erect the folding boxes 1 removed from the magazine 10, which are held by the holders 22 on a wall 2 of a folding box 1 by negative pressure, each suction cup pair 23, 24 of the holder 22 is assigned an angled pressing finger 40 so that it can pivot. The press-on fingers 40, which are also arranged in pairs, are pivoted when a folding box 1 is transferred against the adjacent wall 3 connected to the wall 2 held by the suction cups 23, 24 via a folding line, so that a roller 41 arranged on its free, angled end is attached to the wall 3 attached, the folding box 1 erects. The press-on fingers 40 are rotatably mounted in the holding stars 25 with eyes 42 which are penetrated in pairs by a square shaft 43 which is axially parallel to the axis 26. The square shafts 43, which are rotatably mounted in a disk 44 fastened on the axle 26, carry a lever 45 with a roller 46 at their free end. The rollers 46 of the levers 45 are guided in a cam groove 51 of a cam disk 50. The cam disc 50 is rotatably mounted on the axis 26 of the rotor 20 in addition to the disc 44. It is also firmly connected to a coupling 52 which is articulated on a rocker 53 mounted on the frame, so that the Cam 50 rotates when rotating the planet carrier 30 on the circular path K of the axis 26 of the rotor 20, but does not rotate with the rotor 20, but stands still relative to this. Characterized by the shape of the cam groove 51 of the cam 50, the levers 45 are pivoted so that the push-on fingers 40 are pivoted on the rail route from the delivery station A to the receiving station B against the folding box 1 held by the associated holders 22 and thereby on the one wall 4 adjacent this pivots about the fold line that connects the wall 4 with the wall 2 gripped by the holder 22, the folding box 1 being erected and even broken into a parallelogram (FIG. 3). After the opened folding box 1 has been handed over in the receiving station B between the drivers 16, 17 of the conveying device 15, the levers 45 are pivoted back on the rail section between the receiving station B and the delivery station A.

Zum Steuern des Vakuums für die Sauger 23, 24 der Halter 22, so daß im Umkehrpunkt F an der Abgabestation A Unterdruck erzeugt und im gegenüberliegenden Umkehrpunkt H an der Aufnahmestation B wieder belüftet wird, sind in der Kurvenscheibe 50 zur Scheibe 44 hin offene, bogenförmige Steuernuten 55, 56 radial innerhalb der Kurvennut 51 angeordnet. Eine Steuernut 55 ist mit einer Vakuumquelle verbunden und die andere 56 mit der Umgebungsluft. In Deckung mit den Steuernuten 55, 56 sind in der Scheibe 44 drei Bohrungen um 120 Grad versetzt angeordnet, von denen aus Leitungen 57, 58 zu den Saugern 23, 24 der Halter 22 führen.To control the vacuum for the suction cups 23, 24, the holder 22, so that negative pressure is generated at the reversal point F at the dispensing station A and is ventilated again at the opposite reversing point H at the receiving station B, are curved in the cam disc 50 to the disc 44 out Control grooves 55, 56 are arranged radially within the cam groove 51. One control groove 55 is connected to a vacuum source and the other 56 to the ambient air. In alignment with the control grooves 55, 56, three bores are arranged in the disk 44 offset by 120 degrees, from which lines 57, 58 lead to the suction cups 23, 24 of the holder 22.

Bei dem gezeigten Ausführungsbeispiel hat ein Halter 22 je zwei Sauger 23, 24 an einem Arm der beiden Haltesterne 25. Je nach der Breite einer zu überführenden Faltschachtel ist es zweckmäßig, nur einen oder mehr als zwei Sauger an einem Arm eines Drehstern und je nach der Länge einer Faltschachtel nur einen oder mehr als zwei Drehsterne auf der Achse 26 des Rotors 20 anzuordnen.In the embodiment shown, a holder 22 has two suction cups 23, 24 on one arm of the two holding stars 25. Depending on the width of a folding box to be transferred, it is expedient to have only one or more than two suction cups on one arm of a rotary star and depending on the To arrange the length of a folding box only one or more than two rotating stars on the axis 26 of the rotor 20.

Das Ausführunsbeispiel nach Figur 4, bei dem wegen einer besseren Übersichtlichkeit verschiedene Teile gegenüber dem oben beschriebenen Ausführungsbeispiel nicht gezeichnet sind, ist ähnlich aufgebaut wie das Ausführungsbeispiel nach den Figuren 1 bis 3, weshalb im folgenden für gleiche Teile auch gleiche Benennungen und gleiche Bezugszeichen verwendet werden. Es unterscheidet sich im wesentlichen darin, daß flache Gegenstände, beispielsweise Karten 5 aus dem Stapel 10 der Abgabestation A zur Aufnahmestation B überführt werden, wobei diese Gegenstände auf dem Überführweg zusätzlich um 90 Grad um ihre Querachse gedreht werden. Dazu sind die Halter 22 um eine zur Achse 26 des Rotors 20 radiale Achse 60 drehbar gelagert. Der Rotor 20 hat auf seiner Achse 26 lediglich einen einzigen Haltestern 25, an dessen freien Enden als Halter 22 jeweils nur ein Sauger 61 angeordnet ist. Das radial innere Ende jeder Achse 60 trägt ein Kegelrad 62, das mit einem zweiten Kegelrad 63 kämmt, welches parallel zur Achse 26 des Rotors 20 im Haltestern 25 mit einer Achse 64 drehbar gelagert ist. Mit jeder Achse 64 ist ein Hebel 65 mit einer Rolle 66 fest verbunden, die in der Kurvennut 67 einer Kurvenscheibe 68 geführt ist. Wie bei dem oben beschriebenen Ausführungsbeispiel nach den Figuren 1 bis 3 ist auch diese Kurvenscheibe 68 auf der Welle 26 des Rotors 22 drehbar gelagert und über eine Koppel 52 mit einer ortsfest gelagerten Schwinge 53 verbunden. Durch diese Anordnung wird erreicht, daß beim Drehen des Planetenträgers 30 der Rotor 20 auf der Kreisbahn K umläuft und zusätzlich durch das Planetenradgetriebe um seine Achse 26 gedreht wird, wobei die Halter 22 die strichpunktiert dargestellte Zykloidenbahn C mit den Umkehrpunkten F, G, H, I durchlaufen. Da die Kurvenscheibe 68 durch die Koppel 52 und die Schwinge 53 am Drehen um die Achse 26 gehindert ist, erhalten die Hebel 65 beim Drehen des Rotors 20 durch die Kurvennut 51 eine Schwenkbewegung, die über die Kegelräder 62, auf die Sauger 61 übertragen wird. Dadurch wird eine in der Abgabestation A von einem Halter 22 übernommene Karte 5 um ihre Querachse während ihrer Überführung zur Aufnahmestation D gedreht.The exemplary embodiment according to FIG. 4, in which different parts are not drawn compared to the exemplary embodiment described above for better clarity, is constructed similarly to the exemplary embodiment according to FIGS. 1 to 3, which is why the same terms and reference numerals are used below for the same parts . It differs essentially in that flat objects, for example cards 5, are transferred from the stack 10 of the delivery station A to the receiving station B, these objects being additionally rotated by 90 degrees about their transverse axis on the transfer path. For this purpose, the holders 22 are rotatably mounted about an axis 60 that is radial to the axis 26 of the rotor 20. The rotor 20 has only a single retaining star 25 on its axis 26, at the free ends of which only one suction pad 61 is arranged as the holder 22. The radially inner end of each axis 60 carries a bevel gear 62, which meshes with a second bevel gear 63, which is rotatably mounted parallel to the axis 26 of the rotor 20 in the retaining star 25 with an axis 64. With each axis 64, a lever 65 is fixedly connected to a roller 66 which is guided in the cam groove 67 of a cam disk 68. As in the exemplary embodiment according to FIGS. 1 to 3 described above, this cam disk 68 is also rotatably mounted on the shaft 26 of the rotor 22 and is connected via a coupling 52 to a fixed rocker arm 53. This arrangement ensures that when the planet carrier 30 rotates, the rotor 20 rotates on the circular path K and is additionally rotated about its axis 26 by the planetary gear mechanism, the holder 22 showing the cycloid path C shown in broken lines with the reversal points F, G, H, I go through. Since the cam plate 68 is prevented from rotating about the axis 26 by the coupling 52 and the rocker arm 53, the levers 65 receive a pivoting movement when the rotor 20 is rotated by the cam groove 51, which is transmitted to the suction cups 61 via the bevel gears 62. As a result, a card 5 taken over by a holder 22 in the dispensing station A is rotated about its transverse axis during its transfer to the receiving station D.

Zusammenfassend wird darauf hingewiesen, daß an der Überführvorrichtung auch andere bewegbare Elemente, wie die oben beschriebenen, angeordnet werden können, welche auf den von den Haltern erfaßten Gegenstand während der Überführung gesteuert einwirken. Eine solche Beeinflussung oder Einwirkung kann von einem am Gestell der Vorrichtung angebauten Kurvenelement nicht durchgeführt werden, da der von dem Kurvenelement bewegte Hebel, der an dem Planetenteil angeordnet ist, unter anderem Vor- und Rückwärtsbewegungen bezüglich des Kurvenelements ausgesetzt ist, die eine gewünschte Bewegung unmöglich machen.In summary, it is pointed out that other movable elements, such as those described above, can be arranged on the transfer device, which act in a controlled manner on the object gripped by the holders during the transfer. Such influencing or action cannot be carried out by a cam element mounted on the frame of the device, since the lever which is moved by the cam element and which is arranged on the planet part is subjected, among other things, to forward and backward movements with respect to the cam element, which makes a desired movement impossible do.

Claims (4)

Vorrichtung zum Überführen von flachen Gegenständen (1; 5), insbesondere Faltschachteln, von einer Abgabestation (A) zu einer Aufnahmestation (B) mit wenigstens einem Halter (22), der auf einer in sich geschlossenen Zykloidenbahn (C) mit mehreren Umkehrpunkten (F, G, H, I) und dazwischenliegenden Kurvenbögen umläuft, mit einem den Halter tragenden Planetenteil (20), mit einem um eine Antriebsachse sich drehenden Planetenträger (30), in dem das Planetenteil mit einer exzentrischen Achse (26, 31) achsparallel drehbar gelagert ist, und mit Getriebeelementen (33, 34, 35), die beim Drehen des Planetenträgers dem exzentrisch umlaufenden Planetenteil eine Drehbewegung überlagern, dadurch gekennzeichnet, daß auf dem Planetenteil (30) wenigstens ein bewegbares Teil (40; 61) zum Einwirken auf den gehaltenen Gegenstand (1; 5) angeordnet ist und daß die Bewegung dieses Teils von einem Kurvenelement (50; 68) gesteuert wird, das auf der Achse des Planetenteils drehbar gelagert, jedoch am Mitdrehen mit diesem gehindert ist.Device for transferring flat objects (1; 5), in particular folding boxes, from a delivery station (A) to a receiving station (B) with at least one holder (22) which is arranged on a self-contained cycloidal path (C) with several reversal points (F , G, H, I) and intervening curves, with a planet part (20) supporting the holder, with a planet carrier (30) rotating about a drive axis, in which the planet part with an eccentric axis (26, 31) is rotatably supported in an axially parallel manner and with gear elements (33, 34, 35) which, when the planet carrier rotates, superimpose a rotary motion on the eccentrically rotating planet part, characterized in that on the planet part (30) at least one movable part (40; 61) for acting on the held part Object (1; 5) is arranged and that the movement of this part is controlled by a cam element (50; 68) which rotatably mounted on the axis of the planet part, but on the M it is prevented from turning with this. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß am Planetenteil (30) wenigstens ein dem Halter (22) zugeordneter Finger (40) schwenkbar angeordnet ist, der über einen Hebel (45) von einer Kurve (51) des Kurvenelements (50) beim Drehen des Planetenteils verschwenkt wird.Apparatus according to claim 1, characterized in that at least one finger (40) assigned to the holder (22) is pivotably arranged on the planet part (30), said finger (40) moving from a curve (51) of the curve element (50) during rotation by means of a lever (45) the planet part is pivoted. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Halter (22) am Planetenteil (30) drehbar gelagert ist, und daß dem Halter von dem Kurvenelement (68) über einen Hebel (65) und Getriebeelementen (62, 63) eine Drehbewegung erteilt wird.Apparatus according to claim 1, characterized in that the holder (22) is rotatably mounted on the planet part (30) and that the holder is given a rotary movement by the cam element (68) via a lever (65) and gear elements (62, 63) . Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Kurvenelement (50; 68) über eine Koppel (52) mit einer ortsfest gelagerten Schwinge (53) verbunden ist.Device according to one of claims 1 to 3, characterized in that the cam element (50; 68) is connected via a coupling (52) to a fixed rocker arm (53).
EP90121926A 1989-12-19 1990-11-16 Apparatus for transferring flat objects Expired - Lifetime EP0433667B1 (en)

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DE3941866 1989-12-19
DE3941866A DE3941866A1 (en) 1989-12-19 1989-12-19 DEVICE FOR TRANSFERING FLAT OBJECTS

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EP0433667A1 true EP0433667A1 (en) 1991-06-26
EP0433667B1 EP0433667B1 (en) 1995-02-15

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FR2487310A1 (en) * 1980-07-26 1982-01-29 Weiersmueller Verpacksyst Continuous pick=up mechanism for foils - has suction heads carried on rods rotated via levers, radial arms, and gears to move tangentially to foils
US4394898A (en) * 1981-04-23 1983-07-26 Paper Converting Machine Company Method and apparatus for providing balanced stacks of diapers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0580958A1 (en) * 1992-07-28 1994-02-02 UHLMANN PAC-SYSTEME GmbH & Co. KG Apparatus for taking, conveying, erecting and positionning folding boxes
EP0603562A1 (en) * 1992-12-19 1994-06-29 Robert Bosch Gmbh Method and device for erecting folding boxes and for spreading their closure flaps
US5573490A (en) * 1992-12-19 1996-11-12 Robert Bosch Gmbh Method and apparatus for erecting a folding box and folding its closure tabs
CN113442504A (en) * 2021-08-30 2021-09-28 江苏昌大盖业有限公司 Packing box system of processing
CN113442504B (en) * 2021-08-30 2021-11-30 江苏昌大盖业有限公司 Packing box system of processing

Also Published As

Publication number Publication date
DE3941866A1 (en) 1991-06-20
JPH03200518A (en) 1991-09-02
EP0433667B1 (en) 1995-02-15
US5054761A (en) 1991-10-08
ES2068313T3 (en) 1995-04-16
DE59008476D1 (en) 1995-03-23

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