EP1775114B1 - Device for folding folding carton blanks - Google Patents
Device for folding folding carton blanks Download PDFInfo
- Publication number
- EP1775114B1 EP1775114B1 EP06400028A EP06400028A EP1775114B1 EP 1775114 B1 EP1775114 B1 EP 1775114B1 EP 06400028 A EP06400028 A EP 06400028A EP 06400028 A EP06400028 A EP 06400028A EP 1775114 B1 EP1775114 B1 EP 1775114B1
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- European Patent Office
- Prior art keywords
- station
- folding
- orientation
- vacuum conveyor
- folded
- 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.)
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- 239000002184 metal Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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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
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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
- B31B50/003—Straightening the side walls of boxes; Squaring collapsed folded box blanks; Deforming boxes
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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
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
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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
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
- B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
- B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
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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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
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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
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/04—Feeding sheets or blanks
- B31B50/042—Feeding sheets or blanks using rolls, belts or chains
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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
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/10—Feeding or positioning webs
- B31B50/12—Feeding or positioning webs by air pressure or suction
Definitions
- the invention relates to a device for folding folding carton blanks into a folding carton tube in a folding station, which adjoins a stacking station located downstream in the transport direction, having the features of the preamble of claim 1.
- a device for folding is for example from DE-A-102 41 448 known.
- a folding carton blank is folded in a folding station such that two side flaps are folded onto a central piece, thereby forming a folding carton tube.
- This carton tube is fed out of the folding station and into a destacking station where the folded carton blanks are stacked into a package.
- the folded folding box blanks in particular the folded-in side flaps, are fastened to one another by means of gluing, stapling or by means of an adhesive tape, so that a closed folded box tube is produced.
- the folded carton blanks are transported by two transport fingers attached to a transport chain at the rear end of the transport carton Attack the carton blank and slide the carton blank through the individual stations.
- a defined position of the folding carton blank both in its unfolded and in its folded state is not guaranteed in this device.
- the folded side flaps, if they are not folded exactly at right angles, are connected to each other at an angle, so that the carton tube takes on the erection of the carton not cylindrical but a frusto-conical shape.
- Another device for aligning the side flaps are from the US-A-3,391,616 and the WO-A-00/02721 known. However, these devices only allow a change in position of the side flaps.
- the invention is therefore based on the object to provide a device for folding folding carton blanks, in which it is ensured that not only the folded or folded side flaps occupy the desired position but also the folded folding box blank itself.
- the apparatus according to the invention is located between the folding station and the stacking an alignment station, in which the inclination of the side flaps is corrected.
- the folding box blank with its folded-in side flaps when connecting the two side flaps with each other, that is in the gluing station or stitching station is folded exactly.
- with printed cartons is now also guaranteed that there is no shift in the print image in the transition from one side flap to the other.
- the vacuum conveyor belt in the region of the alignment station has a reduced holding force for the folding box blank. Due to the reduced holding force there is the possibility that not only corrects the position of the side flaps over the or the alignment cams, but also the position of the folded carton blank within the alignment and thus on the vacuum conveyor belts is corrected. In this case, the reduction of the holding force only over a Part of the path through the alignment done, for example, when the alignment of the alignment cam on the center, ie after the correction of the side flaps.
- the suction openings of the vacuum conveyor belt for example, according to the invention partially closed by means of a diaphragm.
- At least one, in particular two, vacuum conveyor belts for transporting the folded folding box blank through the aligning station are provided in the alignment station.
- the vacuum conveyor belts have opposite transport chains with protruding transport finders, as in DE-A-102 41 448 described, the significant advantage that they hold the folded box blank defined, so that no relative movement between the carton blank and the conveyor belt can occur.
- the folding carton blank permanently assumes a defined position as it passes through the aligning station, so that any misalignment of the side flaps can be corrected during the entire run.
- the malpositions of the side flaps are corrected by that, for example, in the same direction extending side edges of center piece and side flaps are aligned parallel to each other. But this is only possible if the middle piece is positioned defined within the alignment station.
- a sensor for determining the position of the rear and / or front edge of the center piece is provided in the transport direction.
- the sensor can be arranged, for example, in the folding station.
- the sensor it is determined where the center piece of the folding box blank is located with respect to the vacuum conveyor belts. Since there is no relative movement between the vacuum belts and the sucked center, the position of the center is known throughout the run.
- At least one, in particular two Ausrichtnocken, provided in the alignment station, which are independently of each other and / or by the transport speed of the Faltschachtelzu motherboard, to the rear in the transport direction edge of the center can be moved.
- the alignment cams are thus within the alignment station to the rear edge of the center piece of the carton blank and take the side flap with, if this protrudes beyond the rear edge of the center piece. This aligns the rear edge of the side flap with respect to the rear edge of the center piece.
- the approach of the alignment cam takes place in that it is accelerated to the rear edge of the center piece and is slowed down in the immediate vicinity of the rear edge and before reaching it so far that it is brought in only slowly. As soon as it touches the rear edge of the center piece, it is moved at the same speed as the transport speed of the folding box blank. This position of the alignment cam is maintained until the carton blank has been grabbed by a subsequent station or until the two side flaps have been joined together.
- the alignment cam is attached to an endless belt.
- the endless belt is aligned with a strand parallel to the transport direction of the folded Faltschachtelzuitess.
- This endless belt is advantageously located above the folding box blank, that is, on the other side, the vacuum conveyor belt. Since the Alignment cam on a separate transport, namely the endless belt is attached, the alignment cam can be moved completely independent of the transport speed of the carton.
- Another advantage is that a plurality of alignment cams are provided on the endless belt. This allows a very high transport speed and very high transport density can be achieved, and it can carton blanks of different sizes are transported.
- the alignment cams are free, i. placeable on the endless belt according to the customer's request or according to the requirements of the size of the folding carton blank.
- the endless belt is parallel to the rear edge of the folding carton blank, ie is orthogonal to the transport direction adjustable. In this way, the endless belt can be positioned so that the alignment cam abuts exactly at a desired location of the folding box blank. With several endless belts, these can be adjusted to different widths of folding carton blanks. As a rule, two endless belts are sufficient, which are arranged side by side.
- the drive of the endless belt is a servomotor.
- the control of this servomotor receives the position of the rear edge of the endless belt
- the panel may be a metal strip running essentially parallel to the transport direction, in particular displaceably arranged.
- the length of the sheet metal strip defines the size of the region with reduced holding force and the degree of coverage of the suction openings determines the size of the holding force.
- Another embodiment provides that the suction openings of the vacuum conveyor belt in the region of the alignment are assigned to a plurality of vacuum chambers and the vacuum chambers have different negative pressures. By adjusting the negative pressure in the vacuum chambers, the size of the holding force is controlled.
- FIG. 1 shows a flow chart during the passage of a folded carton blank 10 through a generally designated 12 alignment station for a device 18 in which the folding box blanks 10 were folded.
- an arrow 16 the passage direction or transport direction of the folding box blanks 10 is indicated.
- the transport direction 16 is located in front of the alignment station 12, the suggestively shown folding station 18 and behind the alignment station 12 an intermediate station 20, with which, for example, the transport speed of the folding box blanks 10 can be changed.
- Behind the intermediate station 20 is a likewise only hintedly illustrated stacking station 22 or packing station.
- FIG. 1a the front edge of a folding carton blank 10 is gripped by a vacuum conveyor belt 24 and the blank 10 is guided in the direction of the arrow 16 under a lower strand 26 of an endless belt 28.
- a projecting Ausrichtnocken 30 which accelerates to the rear edge 32 of a central piece 34 (see FIG. 3 ) of the folding carton blank 10 is introduced.
- the transport speed of the endless belt 28 is reduced so that the Ausrichtnocken 30 is only slightly faster, such as the transport speed 16 of Faltschachtelzuites 10. This is in Figure 1c shown.
- the alignment cam 30 contacts the trailing edge 32 of the center piece 34, it has the same speed as the center piece 34.
- the position of the center piece 34, in particular the trailing edge 32 of the center piece 34, is previously detected by a sensor 36, for example is located in the folding station 18.
- the Ausrichtnocken 30 is, as from the Figures 1d and 1e as long as at the rear edge 32 of the central piece 34 carried until the folding box blank 10 from the intermediate station 20, for example, from a circulating tether 38 has been gripped and is at least partially retracted into the intermediate station 20.
- the endless belt 28 is then braked slightly, so that a distance between the alignment cam 30 and the rear edge 32 of the middle piece 34 and the folding box blank 10 is created.
- the alignment cam 30 can now be lifted off the plane of the folding box blank 10 without the position of the folding box blank 10 being adversely affected by the alignment cam 30.
- Another possibility for spacing the rear edge 32 and alignment cams 30 is that the folding box blank 10 is retracted accelerated in the intermediate station 20.
- the endless belt 28 is now, as from Figure 1g can be seen, so controlled that the in the region of the rear edge 32 of the subsequent folding carton blank 10 located alignment cam 30 accelerated again to this rear edge 32 is brought.
- FIG. 2 shows a plan view of the two vacuum conveyor belts 24 which are provided with suction openings 40, via which the folding box blank 10 is held in the region of the longitudinal sides of the center piece 34 on the vacuum conveyor belt 24 so that it without Relative movement is transported to the vacuum conveyor belt 24 in the direction of arrow 16.
- the folding box blank 10 is folded, since two side flaps 42 and 44 are opened on the middle piece 34, which overlap slightly at their side edges facing each other.
- FIG. 3 is also apparent that the suction openings 40 of the vacuum conveyor belts 24 are partially covered by a diaphragm 52, namely a metal strip 54. This will cause the intake cross section reduces, which also affects the holding force with which the center piece 34 is held on the vacuum conveyor belt 24, ie reduced. By shifting the shutter 52 in a direction of the double arrow 56, the suction force can be adjusted to a desired value.
- the alignment cams 30 can be positioned parallel to the rear edge 32 so that they engage optimally at the rear edges 48 and 50 of the side flaps 42 and 44, that is in the region of the mutually facing free edges. In this way, the positions of the side flaps 42 and 44 are corrected without deformation of the rear edge 48 and 50.
- Faltschachtelzuitese 10 can be processed with the device according to the invention, in particular the positions of the side flaps 42 and 44 are corrected, which have an excess length, that is whose length is greater than the distance between two alignment cams 30 on the Endlosband 28.
- the Ausrichtnocken 30 after the position correction of the two side flaps 42 and 44 earlier than in FIG. 1f represented, braked and optionally counter to the transport direction 16 by the direction of rotation of the endless belt 28 is reversed.
- the endless belt 28 is brought into a position in which the subsequent Faltschachtelzuites 10 can pass under both the front Ausrichtnocken 30 and under the rear Ausrichtnocken 30.
- the two Ausrichtnocken 30 are in the horizontal direction from the endless belt 28. As soon as the rear end 32 of the subsequent folding carton blank 10 has traversed the rear end of the endless belt 28, the rear alignment cam 30 is brought to the rear end 32 of this folding carton blank 10, as described above.
- the side flaps 42 and 44 of a folding box blank 10 are optimally aligned, so that when erecting the folding box this can take the desired shape.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Falten von Faltschachtelzuschnitten zu einem Faltschachtelschlauch in einer Faltstation, welcher sich eine in Transportrichtung stromabwärts liegende Abstapelstation anschließt, mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a device for folding folding carton blanks into a folding carton tube in a folding station, which adjoins a stacking station located downstream in the transport direction, having the features of the preamble of claim 1.
Eine Vorrichtung zum Falten ist zum Beispiel aus der
Weitere Vorrichtung zum Ausrichten der Seitenklappen sind aus der
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum Falten von Faltschachtelzuschnitten bereit zu stellen, bei welcher gewährleistet ist, dass nicht nur die um- oder eingeklappten Seitenklappen die gewünschte Lage einnehmen sondern auch der gefaltete Faltschachtelzuschnitt selbst.The invention is therefore based on the object to provide a device for folding folding carton blanks, in which it is ensured that not only the folded or folded side flaps occupy the desired position but also the folded folding box blank itself.
Diese Aufgabe wird bei einer Vorrichtung gelöst, die die Merkmale des Anspruchs 1 aufweist.This object is achieved in a device having the features of claim 1.
Bei der erfindungsgemäßen Vorrichtung befindet sich zwischen der Faltstation und der Abstapelstation eine Ausrichtstation, in welcher die Schrägstellung der Seitenklappen korrigiert wird. Auf diese Weise wird sichergestellt, dass der Faltschachtelzuschnitt mit seinen eingeklappten Seitenklappen beim Verbinden der beiden Seitenklappen miteinander, das heißt in der Klebestation oder Heftstation, exakt gefaltet ist. Dadurch wird gewährleistet, dass beim Aufrichten des Kartons, das heißt beim Ausklappen des Faltschachtelschlauchs, dieser eine zylindrische Form einnimmt und die Form der Faltschachtel korrekt ist. Insbesondere bei bedruckten Faltschachteln ist nunmehr auch gewährleistet, dass beim Übergang von der einen Seitenklappe auf die andere keine Verschiebung im Druckbild vorliegt.In the apparatus according to the invention is located between the folding station and the stacking an alignment station, in which the inclination of the side flaps is corrected. In this way it is ensured that the folding box blank with its folded-in side flaps when connecting the two side flaps with each other, that is in the gluing station or stitching station, is folded exactly. This ensures that when erecting the carton, that is, when unfolding the carton tube, this assumes a cylindrical shape and the shape of the carton is correct. In particular, with printed cartons is now also guaranteed that there is no shift in the print image in the transition from one side flap to the other.
Erfindungsgemäß weist das Vakuumtransportband im Bereich der Ausrichtstation eine verminderte Haltekraft für den Faltschachtelzuschnitt auf. Aufgrund der verminderten Haltekraft besteht die Möglichkeit, dass über den oder die Ausrichtnocken nicht nur die Position der Seitenklappen korrigiert, sondern auch die Lage des gefalteten Faltschachtelzuschnitts innerhalb der Ausrichtstation und somit auf den Vakuumtransportbändern korrigiert wird. Dabei kann die Verminderung der Haltekraft lediglich über einen Teil der Wegstrecke durch die Ausrichtstation erfolgen, z.B. bei der Anlage des Ausrichtnockens am Mittelstück, d.h. nach der Korrektur des Seitenklappen.According to the invention, the vacuum conveyor belt in the region of the alignment station has a reduced holding force for the folding box blank. Due to the reduced holding force there is the possibility that not only corrects the position of the side flaps over the or the alignment cams, but also the position of the folded carton blank within the alignment and thus on the vacuum conveyor belts is corrected. In this case, the reduction of the holding force only over a Part of the path through the alignment done, for example, when the alignment of the alignment cam on the center, ie after the correction of the side flaps.
Dabei sind die Ansaugöffnungen des Vakuumtransportbandes zum Beispiel erfindungsgemäß mittels einer Blende teilweise verschlossen. Durch die Verringerung des Ansaugquerschnittes wird die Haltekraft verringert, so dass der Faltschachtelzuschnitt auf dem Transportband neu positioniert werden kann.In this case, the suction openings of the vacuum conveyor belt, for example, according to the invention partially closed by means of a diaphragm. By reducing the Ansaugquerschnittes the holding force is reduced, so that the carton blank can be repositioned on the conveyor belt.
Erfindungsgemäß sind in der Ausrichtstation wenigstens ein, insbesondere zwei Vakuumtransportbänder zum Transport des gefalteten Faltschachtelzuschnitts durch die Ausrichtstation vorgesehen. Die Vakuumtransportbänder besitzen gegenüber Transportketten mit abragenden Transportfindern, wie in der
Erfindungsgemäß ist vorgesehen, dass ein Sensor zur Positionsbestimmung der in Transportrichtung hinteren und/oder vorderen Kante des Mittelstücks vorgesehen ist. Dabei kann der Sensor zum Beispiel in der Faltstation angeordnet sein. Mittels des Sensors wird bestimmt, wo sich das Mittelstück des Faltschachtelzuschnitts bezüglich der Vakuumtransportbänder befindet. Da zwischen den Vakuumtransportbändern und dem angesaugten Mittelstück keine Relativbewegung stattfindet, ist die Position des Mittelstücks während des gesamten Durchlaufs bekannt.According to the invention it is provided that a sensor for determining the position of the rear and / or front edge of the center piece is provided in the transport direction. In this case, the sensor can be arranged, for example, in the folding station. By means of the sensor it is determined where the center piece of the folding box blank is located with respect to the vacuum conveyor belts. Since there is no relative movement between the vacuum belts and the sucked center, the position of the center is known throughout the run.
Bei einem bevorzugten Ausführungsbeispiel sind in der Ausrichtstation wenigstens ein, insbesondere zwei Ausrichtnocken, vorgesehen, die unabhängig voneinander und/oder von der Transportgeschwindigkeit eines den Faltschachtelzuschnitt transportierenden Transportsystems, zum Beispiel ein Vakuumtransportband, an die in Transportrichtung hintere Kante des Mittelstücks heranführbar sind. Die Ausrichtnocken werden also innerhalb der Ausrichtstation an die hintere Kante des Mittelstücks des Faltschachtelzuschnitts herangeführt und nehmen die Seitenklappe mit, falls diese über die hintere Kante des Mittelstücks vorsteht. Dadurch wird die hintere Kante der Seitenklappe bezüglich der hinteren Kante des Mittelstücks ausgerichtet.In a preferred embodiment, at least one, in particular two Ausrichtnocken, provided in the alignment station, which are independently of each other and / or by the transport speed of the Faltschachtelzuschnitt transporting transport system, for example, a vacuum conveyor belt, to the rear in the transport direction edge of the center can be moved. The alignment cams are thus within the alignment station to the rear edge of the center piece of the carton blank and take the side flap with, if this protrudes beyond the rear edge of the center piece. This aligns the rear edge of the side flap with respect to the rear edge of the center piece.
Das Heranführen des Ausrichtnockens erfolgt dadurch, dass dieser beschleunigt an die hintere Kante des Mittelstücks herangeführt wird und in unmittelbarer Nähe zur hinteren Kante und vor Erreichen derselben so weit abgebremst wird, dass er nur noch langsam herangeführt wird. Sobald er die hintere Kante des Mittelstücks berührt, wird er mit gleicher Geschwindigkeit wie die Transportgeschwindigkeit des Faltschachtelzuschnitts verfahren. Diese Position des Ausrichtnockens wird so lange beibehalten, bis der Faltschachtelzuschnitt von einer nachfolgenden Station ergriffen worden ist oder bis die beiden Seitenklappen miteinander verbunden wurden.The approach of the alignment cam takes place in that it is accelerated to the rear edge of the center piece and is slowed down in the immediate vicinity of the rear edge and before reaching it so far that it is brought in only slowly. As soon as it touches the rear edge of the center piece, it is moved at the same speed as the transport speed of the folding box blank. This position of the alignment cam is maintained until the carton blank has been grabbed by a subsequent station or until the two side flaps have been joined together.
Bei einem bevorzugten Ausführungsbeispiel ist der Ausrichtnocken an einem Endlosband befestigt. Außerdem ist das Endlosband mit einem Trum parallel zur Transportrichtung des gefalteten Faltschachtelzuschnitts ausgerichtet. Dieses Endlosband befindet sich vorteilhaft oberhalb des Faltschachtelzuschnitts, das heißt auf der anderen Seite das Vakuumtransportband. Da der Ausrichtnocken an einem separaten Transportmittel, nämlich dem Endlosband befestigt ist, kann der Ausrichtnocken völlig unabhängig von der Transportgeschwindigkeit der Faltschachtel bewegt werden.In a preferred embodiment, the alignment cam is attached to an endless belt. In addition, the endless belt is aligned with a strand parallel to the transport direction of the folded Faltschachtelzuschnitts. This endless belt is advantageously located above the folding box blank, that is, on the other side, the vacuum conveyor belt. Since the Alignment cam on a separate transport, namely the endless belt is attached, the alignment cam can be moved completely independent of the transport speed of the carton.
Sind mehrere Endlosbänder nebeneinander angeordnet, dann können diese Bänder und somit auch die mehreren Ausrichtnocken unabhängig voneinander bewegt werden. Hierdurch wird die Möglichkeit geschaffen, dass in der Ausrichtstation auch Faltschachtelzuschnitte ausgerichtet werden können, die keine gerade hintere Kante besitzen, sondern deren hintere Kante schrägt verläuft oder mit Ausnehmungen beziehungsweise Ausschnitten versehen ist.If several endless belts are arranged next to one another, then these belts and thus also the several alignment cams can be moved independently of one another. As a result, the possibility is created that also folding carton blanks can be aligned in the alignment station, which have no straight rear edge, but whose rear edge is inclined or provided with recesses or cutouts.
Ein weiterer Vorteil besteht darin, dass mehrere Ausrichtnocken am Endlosband vorgesehen sind. Dadurch kann eine sehr hohe Transportgeschwindigkeit und sehr hohe Transportdichte erzielt werden, und es können Faltschachtelzuschnitte unterschiedlichster Größe transportiert werden. Bevorzugt sind die Ausrichtnocken frei d.h. gemäß Kundenwunsch oder gemäß den Anforderungen an die Größe des Faltschachtelzuschnitts am Endlosband platzierbar.Another advantage is that a plurality of alignment cams are provided on the endless belt. This allows a very high transport speed and very high transport density can be achieved, and it can carton blanks of different sizes are transported. Preferably, the alignment cams are free, i. placeable on the endless belt according to the customer's request or according to the requirements of the size of the folding carton blank.
Bei einer Weiterbildung ist vorgesehen, dass das Endlosband parallel zur hinteren Kante des Faltschachtelzuschnitts, d.h. orthogonal zur Transportrichtung verstellbar ist. Auf diese Weise kann das Endlosband so positioniert werden, dass der Ausrichtnocken exakt an einer gewünschten Stelle des Faltschachtelzuschnitts anliegt. Bei mehreren Endlosbändern können diese auf unterschiedlich breite Faltschachtelzuschnitte eingestellt werden. In der Regel reichen zwei Endlosbänder aus, die nebeneinander angeordnet sind.In a further development, it is provided that the endless belt is parallel to the rear edge of the folding carton blank, ie is orthogonal to the transport direction adjustable. In this way, the endless belt can be positioned so that the alignment cam abuts exactly at a desired location of the folding box blank. With several endless belts, these can be adjusted to different widths of folding carton blanks. As a rule, two endless belts are sufficient, which are arranged side by side.
Um die Endlosbänder mit dem gewünschten Geschwindigkeitsprofil verfahren zu können, ist der Antrieb des Endlosbandes ein Servomotor. Die Steuerung dieses Servomotors erhält die die Position der hinteren Kante desIn order to be able to move the endless belts with the desired speed profile, the drive of the endless belt is a servomotor. The control of this servomotor receives the position of the rear edge of the
Mittelstücks definierenden Daten von einem Positionssensor, aufgrund welcher das Endlosband so angesteuert wird, dass der Anschlagnocken die Seitenklappen verschiebt, im Übrigen den Faltschachtelzuschnitt aber nicht verformt.Center piece defining data from a position sensor, due to which the endless belt is driven so that the stop cam shifts the side flaps, but otherwise does not deform the Faltschachtelzuschnitt.
Bei einem Ausführungsbeispiel kann die Blende ein im Wesentlichen parallel zur Transportrichtung verlaufender, insbesondere verlagerbar angeordneter, Blechstreifen sein. Durch die Länge des Blechstreifens wird die Größe des Bereichs mit verminderter Haltekraft definiert und durch den Überdeckungsgrad der Ansaugöffnungen wird die Größe der Haltekraft bestimmt. Durch Verlagerung des Blechstreifens kann der Bereich und kann die Größe der Haltekraft eingestellt werden.In one exemplary embodiment, the panel may be a metal strip running essentially parallel to the transport direction, in particular displaceably arranged. The length of the sheet metal strip defines the size of the region with reduced holding force and the degree of coverage of the suction openings determines the size of the holding force. By shifting the metal strip, the range and the size of the holding force can be adjusted.
Eine andere Ausführungsform sieht vor, dass den Ansaugöffnungen des Vakuumtransportbandes im Bereich der Ausrichtstation mehreren Unterdruckkammern zugeordnet sind und die Unterdruckkammern unterschiedliche Unterdrücke aufweisen. Durch die Einstellung des Unterdrucks in den Unterdruckkammern wird die Größe der Haltekraft gesteuert.Another embodiment provides that the suction openings of the vacuum conveyor belt in the region of the alignment are assigned to a plurality of vacuum chambers and the vacuum chambers have different negative pressures. By adjusting the negative pressure in the vacuum chambers, the size of the holding force is controlled.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in der Zeichnung dargestellten sowie in der Beschreibung und den Ansprüchen erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the subclaims and the following description in which, with reference to the drawing, a particularly preferred embodiment is described in detail. The features shown in the drawing and mentioned in the description and the claims may each be essential to the invention individually or in any combination.
- Figur 1FIG. 1
- ein Ablaufschema durch eine Ausrichtstation;a flow chart through an alignment station;
- Figur 2FIG. 2
- eine Draufsicht auf einen gefalteten Faltschachtelzuschnitt in der Ausrichtstation; unda plan view of a folded carton blank in the alignment station; and
- Figur 3FIG. 3
-
eine vergrößerte Wiedergabe des Ausschnitts III gemäß
Figur 2 .an enlarged view of the section III according toFIG. 2 ,
Die
Wie aus
Sobald der Ausrichtnocken 30 die hintere Kante 32 des Mittelstücks 34 berührt, besitzt er die gleiche Geschwindigkeit wie das Mittelstück 34. Die Position des Mittelstücks 34, insbesondere der hinteren Kante 32 des Mittelstücks 34, wird zuvor von einem Sensor 36 erfasst, der sich zum Beispiel in der Faltstation 18 befindet.Once the
Der Ausrichtnocken 30 wird, wie aus den
Der Ausrichtnocken 30 kann nun aus der Ebene des Faltschachtelzuschnitts 10 abgehoben werden, ohne dass die Position des Faltschachtelzuschnitts 10 vom Ausrichtnocken 30 nachteilig beeinflusst wird. Eine weitere Möglichkeit zur Beabstandung von hinterer Kante 32 und Ausrichtnocken 30 besteht darin, dass der Faltschachtelzuschnitt 10 in der Zwischenstation 20 beschleunigt eingezogen wird.The
Das Endlosband 28 wird nunmehr, wie aus
Die
Dies ist deutlich in
Aus
Durch Verminderung der Ansaugkraft besteht die Möglichkeit, dass mit den Ausrichtnocken 30 nicht nur die Seitenklappen 42 und 44 bezüglich des Mittelteils 34 ausgerichtet werden, sondern dass auch die Position des Faltschachtelzuschnitts auf dem Vakuumtransportband 24 korrigiert wird.By reducing the suction force, there is a possibility that not only the side flaps 42 and 44 are aligned with the
Mit den Pfeilen 58 ist in
Mit der erfindungsgemäßen Vorrichtung können auch Faltschachtelzuschnitte 10 bearbeitet, insbesondere die Positionen der Seitenklappen 42 und 44 korrigiert werden, die eine Überlänge aufweisen, das heißt deren Länge größer ist, als der Abstand zweier Ausrichtnocken 30 auf dem Endlosband 28. Dabei wird der Ausrichtnocken 30 nach der Lagekorrektur der beiden Seitenklappen 42 und 44 früher als in
Mit der erfindungsgemäßen Vorrichtung werden die Seitenklappen 42 und 44 eines Faltschachtelzuschnitts 10 optimal ausgerichtet, so dass beim Aufrichten der Faltschachtel diese die gewünschte Form einnehmen kann.With the device according to the invention, the side flaps 42 and 44 of a folding box blank 10 are optimally aligned, so that when erecting the folding box this can take the desired shape.
Claims (10)
- Device for folding folding carton blanks (10) to give a folding carton tube in a folding station (18) which is connected to a stacking station (22) located downstream in the transport direction (16), an orientation station (12) for side flaps (42, 44) folded onto a middle piece (34) of the folding carton blank (10) being provided between the folding station (18) and the stacking station (22), a sensor (36) for position determination of that edge (32) of the middle piece (34) which is at the rear and/or front in the transport direction (16) being provided, and at least one vacuum conveyor belt (24), in particular two vacuum conveyor belts (24), being provided, in the orientation station (12), for transporting the folded folding carton blank (10) through the orientation station (12), characterized in that the vacuum conveyor belt (24) has, in the region of the orientation station (12), a reduced retaining force for the folding carton blank (10) in that the suction openings (40) of the vacuum conveyor belt (24) are partly closed in the region of the orientation station (12) by means of a cover (52).
- Device according to Claim 1, characterized in that the sensor (36) is arranged in the folding station (18).
- Device according to any of the preceding claims,
characterized in that at least one orientation cam (30), in particular two orientation cams (30), are provided in the orientation station (12), which orientation cams, independently of one another and/or of the transport speed of a transport system transporting the folding carton blank (10), can be moved to that edge (32) of the middle piece (34) which is the rear edge in the transport direction (16). - Device according to Claim 3, characterized in that the orientation cam (30) is fixed to a continuous belt (28) and the continuous belt (28) is orientated with one side (26) parallel to the transport direction (16) of the folded folding carton blank (10).
- Device according to Claim 4, characterized in that a plurality of orientation cams (30) are provided on the continuous belt (28).
- Device according to Claim 4 or 5, characterized in that the continuous belt (28) can be adjusted parallel to the rear edge (32).
- Device according to any of Claims 4 to 6,
characterized in that at least two continuous belts (28) are arranged side by side. - Device according to any of Claims 4 to 7,
characterized in that the drive of the continuous belt (28) is a servo motor. - Device according to any of the preceding claims, characterized in that the cover (52) is a metal strip (54) arranged so as to run substantially parallel to the transport direction (16), in particular in a displaceable manner.
- Device according to any of the preceding claims, characterized in that the suction openings (40) of the vacuum conveyor belt (24) in the region of the orientation station (12) are coordinated with a plurality of reduced pressure chambers, and the reduced pressure chambers have different reduced pressures.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005050032A DE102005050032A1 (en) | 2005-10-14 | 2005-10-14 | Device for folding carton blanks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1775114A1 EP1775114A1 (en) | 2007-04-18 |
EP1775114B1 true EP1775114B1 (en) | 2010-01-27 |
Family
ID=37622109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06400028A Active EP1775114B1 (en) | 2005-10-14 | 2006-08-04 | Device for folding folding carton blanks |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1775114B1 (en) |
AT (1) | ATE456448T1 (en) |
DE (2) | DE102005050032A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010036015A1 (en) * | 2010-08-31 | 2012-03-01 | Heidelberger Druckmaschinen Ag | gluer |
DE102016204880A1 (en) * | 2016-03-23 | 2017-09-28 | Krones Aktiengesellschaft | Transport device and device equipped therewith for handling articles as well as methods for handling articles |
CN110001130A (en) * | 2019-05-24 | 2019-07-12 | 深圳市东京文洪印刷机械有限公司 | A kind of box gluing machine and its box device is received automatically |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2728274A (en) * | 1953-01-08 | 1955-12-27 | Samuel M Langston Co | Box squaring devices |
US3326095A (en) * | 1964-04-17 | 1967-06-20 | Universal Corrugated Box Mach | Squaring equipment for folded box blanks |
US3314338A (en) * | 1964-11-27 | 1967-04-18 | Dorr Sales & Engineering Co In | Machine for folding carton blanks |
US3391616A (en) | 1966-06-03 | 1968-07-09 | Universal Corrugated Box Mach | Control circuit for squaring equipment |
FR2721301B1 (en) * | 1994-06-17 | 1996-09-13 | Sodeme Sa | Compact folder of cardboard sheets. |
DE19828820C2 (en) * | 1998-06-04 | 2003-04-03 | Jagenberg Diana Gmbh | Folding box gluing machine for the production of folding boxes from blanks |
DE69903307T2 (en) | 1998-07-09 | 2003-06-26 | Bobst Group Inc | DEVICE WITH PNEUMATIC FINGER ELEMENTS FOR UPRATING FOLDING BOXES |
DE10241448A1 (en) * | 2002-09-06 | 2004-03-18 | Bahmüller Maschinenbau und Präzisionswerkzeug GmbH | Folding machine with increased throughput |
-
2005
- 2005-10-14 DE DE102005050032A patent/DE102005050032A1/en not_active Withdrawn
-
2006
- 2006-08-04 DE DE502006006031T patent/DE502006006031D1/en active Active
- 2006-08-04 EP EP06400028A patent/EP1775114B1/en active Active
- 2006-08-04 AT AT06400028T patent/ATE456448T1/en active
Also Published As
Publication number | Publication date |
---|---|
DE502006006031D1 (en) | 2010-03-18 |
EP1775114A1 (en) | 2007-04-18 |
DE102005050032A1 (en) | 2007-04-26 |
ATE456448T1 (en) | 2010-02-15 |
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