EP1657200A1 - Device for separating a continuous conveyed overlapping formation of flat products - Google Patents

Device for separating a continuous conveyed overlapping formation of flat products Download PDF

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Publication number
EP1657200A1
EP1657200A1 EP05023916A EP05023916A EP1657200A1 EP 1657200 A1 EP1657200 A1 EP 1657200A1 EP 05023916 A EP05023916 A EP 05023916A EP 05023916 A EP05023916 A EP 05023916A EP 1657200 A1 EP1657200 A1 EP 1657200A1
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EP
European Patent Office
Prior art keywords
workpieces
lifting
workpiece
scale flow
conveying means
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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
EP05023916A
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German (de)
French (fr)
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EP1657200B1 (en
Inventor
Jürgen Steinberg
Rüdiger Duwendag
Theodor Leder
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP1657200A1 publication Critical patent/EP1657200A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/12—Forming counted batches in delivery pile or stream of articles by creating gaps in the stream

Definitions

  • the invention relates to an apparatus and a method for separating a conveyed stream of scaly superimposed, flat workpieces according to the preambles of claims 1 and 9.
  • conveying means can be any means suitable for conveying or transporting workpieces, such as revolving, endless conveyor belts or a plurality of rollers or rollers arranged one behind the other. After separation of the scale flow both conveyors are operated again at the same speed. However, it is also conceivable to operate the first conveyor at a temporarily lower speed in order to allow the same effect, namely the separation of the scale flow.
  • the scale flow is a means for lifting the separation point following workpiece, ie the Separation point adjacent workpiece, provided.
  • This means to take off is as Intermediate conveyor designed, which is provided with cams, which extend beyond the transport plane of the second conveyor and so lift the workpieces from this conveyor when it is driven at a higher speed.
  • the intermediate conveyor belt is driven at the same speed as the first conveyor belt, so that the part of the scale flow following the separation point is maintained in its shape.
  • the following part of the scale flow is, when the second conveyor is operated again at a slower speed, put back on this conveyor belt by the cams are retracted or folded.
  • the leading part of the scale flow can now be further processed separately from the subsequent part of the scale flow.
  • the workpieces of this leading part are collected for example in a stack of workpieces and stored or packaged for storage.
  • the device described is used, for example, in a floor layer, in which at the ends of hose sections floors, such as cross bottoms, are formed. These crossfloor sacks are then transported scaled, the scale flow separated and arranged the sacks into stacks. The stacks are then often stored in a crusher and then palletized.
  • the device described can be used for the separation of scale flows, in which the following workpiece rests on the leading workpiece. It is conceivable, however, a scale flow, wherein each of the leading workpiece rests on the respective subsequent workpiece. In this case, when the second conveyor belt is operated at a higher speed, a part of the leading part of the scale flow must be lifted off the first conveyor. The means for lifting must then always be operated at the same speed as the second conveyor.
  • the object of the present invention is therefore to provide a device in which a scale flow can be separated safely and without damaging the workpieces.
  • further means for lifting workpieces are provided by at least one of the conveying means, which act on at least one workpiece in a spaced apart from the separation point region of the scale flow.
  • These further means for lifting can act on the same workpiece, which already act on the first means for lifting.
  • the further means can also detect a workpiece adjacent to the workpiece adjacent to the separation point. With these further means for lifting workpieces is avoided that workpieces at least partially touch the conveyor disposed thereunder.
  • the period during which the first means for lifting workpieces act on this workpiece and the period during which the further means for lifting workpieces acts on at least one workpiece start simultaneously or end simultaneously.
  • a shingled stream in which the following workpiece rests on the leading workpiece, it is ensured that after a period in which the two conveying means are operated at different speeds, the previously lifted part of the scale flow is brought into contact with the conveying means that all workpieces touch the conveyor again at the same time.
  • a Scrap flow in which the leading workpiece rests on the subsequent workpiece, is analogously ensured that all workpieces are lifted simultaneously and evenly from the conveyor.
  • the first and the further means for lifting workpieces can be fixed relative to the machine frame. However, at least components of the means for lifting workpieces can also move relative to the machine frame.
  • the further means for lifting workpieces comprise cams.
  • cams For the purpose of lifting these cams protrude at least temporarily over the plane of at least one means of transport, on which the workpieces rest during transport.
  • two cams can be provided which detect workpieces in the area of their outer areas.
  • further cams may be conceivable in order to avoid bending of the workpiece in its central region.
  • cams of the further means for lifting workpieces on or on circulating transport means.
  • the length of the transport or the means of transport is designed so that cams act on the workpieces in the machine cycle.
  • the first means for lifting the workpiece adjacent to the separation point may also have cams arranged on or on peripheral transport means.
  • all cam-carrying transport can each run over a first deflection, which have the same speeds.
  • These respective first deflection means can be driven. In this way, all cams act in constant phase on the workpieces.
  • Deflection means may be gears or pulleys.
  • a single deflection means such as a shaft, may be provided, over which the means of transport run.
  • the transport means of the further means for lifting workpieces run over further deflection means, wherein the position of this further deflection means relative to the first deflection means changeable is.
  • This relative change in position may be parallel to the plane of the conveyor on which rest the workpieces during transport.
  • the change in position of the deflection leads to a change in the period during which the cams act on the workpieces.
  • the time at which the workpieces of the separation point subsequent part of the scale flow after the separation process again come into contact with the funding can be changed.
  • the position of the cam or on or on the transport means is variable.
  • the means for lifting the formats of the workpieces can be adjusted. This is particularly advantageous when the device is operated in conjunction with a manufacturing machine such as floor levelers, on or with which workpieces of various formats can be produced.
  • the change in the position of the cam or cams causes the cams of the first lifting means and the cams of the further lifting means to simultaneously contact the workpieces or simultaneously terminate this contact.
  • At least one counter-position is provided, against which the workpieces can be pressed by the first and / or further means for lifting workpieces from a conveyor.
  • Fig. 1 shows a device for separating a scale flow 1 with a first conveyor belt 2 and a second conveyor belt 3.
  • the conveyor belt 3 runs over deflection roller 4, 5, 6 um.
  • the guide roller 6 coaxially arranged, but driven at different speeds pulley 8 two transport chains or belts 9, 10 out.
  • the direction of rotation of the transport chains 9, 10 corresponds to that of the conveyor belts 2, 3rd
  • the second conveyor belt 3 can be driven at the same or higher speed compared to the conveyor belt 2.
  • the transport chains 9, 10 are always driven with compared to the conveyor belt 2 same speed.
  • the circulating with the conveyor chain 10 cam 12 projects beyond the upper run of the conveyor belt 3 after passing through the guide roller 8 and so lifts a workpiece 7 'and thus also the following workpieces 7 from the conveyor belt 3.
  • the conveying speed of the conveyor belt 3 is increased, so that the part of the scale flow leading to the workpiece 7 'is separated from the raised workpieces 7'.
  • the cam 11 In order to prevent the workpieces 7 following the lifted workpiece 7 'from coming into contact with the conveyor belt 3, after a short time the cam 11 also passes the deflection roller 8 and lifts workpieces 7 from the conveyor belt 3.
  • FIG. 1 This situation during the separation process is shown in FIG 1.
  • the deflection roller 13, over which the transport chain 9 extends, and the deflection roller 14, over which the transport chain 10 extends, are spaced apart according to the spacing of the cams 11 and 12.
  • the cams 11 and 12 are lowered simultaneously, so that the lifted workpieces 7, 7 'are simultaneously deposited again on the conveyor belt.
  • This lowering takes place after the conveyor belt 3 has been throttled back to speed of the conveyor belt 2.
  • the transport chains 9 and 10 have the same length. This has the consequence that the transport chain 9 additionally has to be guided over a deflection roller 15.
  • the device 1 further comprises a frame 16, not shown on the machine frame, on the two links 17, 18th are arranged pivotally.
  • the links 17, 18 are connected to a coupling rod 19.
  • the coupling rod 19 carries two pulleys 20, 21, over which a belt 22 rotates.
  • This band 22 is due to the weight of the handlebars 17, 18, the coupling rod 19 and the guide rollers 20, 21 on the workpieces 7 and pushes them against the cam 11, 12.
  • the tape 22 is only from the workpieces 7, 7 ' , which are supported in the raised state substantially by the cams 11 and 12 moves.
  • the elements 17 to 22 thus form a counter position to the cams 11 and 12, so that the workpieces 7 are held in a clamping manner.
  • FIG. 2 shows a top view of the device 1 according to the invention. It can be seen from this figure that the device 1 comprises two of the units described above, which are arranged in mirror images of one another.

Abstract

The device for the separating of a conveyed stream of flat objects lying one upon the other in shingle fashion has two conveyor belts (2,3) in series and operated at different speeds. A first means (8,10,12,14) are provided for the lifting of the workpiece (7) from at least one of the conveyor belts of a part of the stream next to the separating point, and additional means (8,9,11,13,15) are provided for the lifting of workpieces from at least one conveyor belt and act upon at least one workpiece in the region of the shingle stream at a distance from the separating point. An independent claim is included for a method for the separating of a continuously transported stream of flat objects in shingle layered fashion.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Trennen eines geförderten Stromes von geschuppt übereinander liegenden, flachen Werkstücken gemäß der Oberbegriffe der Patentansprüche 1 und 9.The invention relates to an apparatus and a method for separating a conveyed stream of scaly superimposed, flat workpieces according to the preambles of claims 1 and 9.

Derartige Vorrichtungen sind beispielsweise aus der Offenlegungsschrift DE 39 41 184 A1 bekannt. Der Inhalt dieser Offenlegungsschrift wird ausdrücklich als Bestandteil des Offenbarungsgehaltes der vorliegenden Patentanmeldung betrachtet. Die dort beschriebene Vorrichtung weist zwei aufeinander folgende Fördermittel auf, von denen das zweite stromabwärts angeordnete Fördermittel zeitweise mit erhöhter Geschwindigkeit antreibbar ist, um den Schuppenstrom an einer vorbestimmten Stelle auseinander ziehen beziehungsweise trennen zu können. Fördermittel können dabei alle zum Fördern beziehungsweise zum Transport von Werkstücken geeignete Mittel sein, wie etwa umlaufende, endlose Förderbänder oder mehrere hintereinander angeordnete Rollen oder Walzen. Nach dem Trennen des Schuppenstromes werden beide Fördermittel wieder mit gleicher Geschwindigkeit betrieben. Denkbar ist jedoch auch, das erste Fördermittel mit einer zeitweise geringeren Geschwindigkeit zu betreiben, um den gleichen Effekt, nämlich das Trennen des Schuppenstromes, zu ermöglichen. Da beide Fördereinrichtungen während des Trennvorganges den Schuppenstrom, wenn auch mit unterschiedlichen Geschwindigkeiten, weiter fördern, der der Trennstelle nachfolgende Teil des Schuppenstroms jedoch nicht mit dem zweiten Fördermittel in Berührung stehen darf, ist ein Mittel zum Abheben des der Trennstelle folgenden Werkstücks, also des der Trennstelle benachbarten Werkstücks, vorgesehen. Dieses Mittel zum Abheben ist als Zwischenförderband ausgestaltet, das mit Nocken versehen ist, welche die Transportebene des zweiten Fördermittels überragen und so die Werkstücke von diesem Fördermittel abheben, wenn es mit höherer Geschwindigkeit angetrieben wird. Das Zwischenförderband ist dabei mit gleicher Geschwindigkeit wie das erste Förderband antreibbar, so dass der der Trennstelle folgende Teil des Schuppenstromes in seiner Form erhalten bleibt. Der nachfolgende Teil des Schuppenstromes wird, wenn das zweite Fördermittel wieder mit langsamerer Geschwindigkeit betrieben wird, wieder auf dieses Förderband abgelegt, indem die Nocken zurückgezogen oder abgeklappt werden. Der vorauslaufende Teil des Schuppenstromes kann nun getrennt von dem nachfolgenden Teil des Schuppenstromes weiter verarbeitet werden. Die Werkstücke dieses vorauslaufenden Teils werden beispielsweise in einem Werkstückstapel gesammelt und zur Lagerung abgelegt oder verpackt. Die beschriebene Vorrichtung wird beispielsweise in einem Bodenleger verwendet, in welchem an den Enden von Schlauchabschnitten Böden, etwa Kreuzböden, angeformt werden. Diese Kreuzbodensäcke werden dann geschuppt transportiert, der Schuppenstrom getrennt und die Säcke zu Stapeln angeordnet. Die Stapel werden dann häufig in einer Verpresseinrichtung zwischengelagert und anschließend palettiert.Such devices are known for example from the published patent application DE 39 41 184 A1. The content of this disclosure is expressly considered to be part of the disclosure of the present application. The device described there has two successive conveying means, of which the second downstream arranged conveying means can be temporarily driven at an increased speed in order to be able to pull apart or separate the scale flow at a predetermined location. In this case, conveying means can be any means suitable for conveying or transporting workpieces, such as revolving, endless conveyor belts or a plurality of rollers or rollers arranged one behind the other. After separation of the scale flow both conveyors are operated again at the same speed. However, it is also conceivable to operate the first conveyor at a temporarily lower speed in order to allow the same effect, namely the separation of the scale flow. Since both conveyors during the separation process, the scale flow, although at different speeds, promote further, the separation point subsequent part of the scale flow may not be in contact with the second funding, is a means for lifting the separation point following workpiece, ie the Separation point adjacent workpiece, provided. This means to take off is as Intermediate conveyor designed, which is provided with cams, which extend beyond the transport plane of the second conveyor and so lift the workpieces from this conveyor when it is driven at a higher speed. The intermediate conveyor belt is driven at the same speed as the first conveyor belt, so that the part of the scale flow following the separation point is maintained in its shape. The following part of the scale flow is, when the second conveyor is operated again at a slower speed, put back on this conveyor belt by the cams are retracted or folded. The leading part of the scale flow can now be further processed separately from the subsequent part of the scale flow. The workpieces of this leading part are collected for example in a stack of workpieces and stored or packaged for storage. The device described is used, for example, in a floor layer, in which at the ends of hose sections floors, such as cross bottoms, are formed. These crossfloor sacks are then transported scaled, the scale flow separated and arranged the sacks into stacks. The stacks are then often stored in a crusher and then palletized.

Die beschriebene Vorrichtung ist zur Trennung von Schuppenströmen verwendbar, bei denen das nachfolgende Werkstück auf dem vorauslaufenden Werkstück aufliegt. Denkbar ist jedoch ein Schuppenstrom, bei dem jeweils das vorauslaufende Werkstück auf dem jeweils nachfolgenden Werkstück aufliegt. In diesem Fall müssen, wenn das zweite Förderband mit höherer Geschwindigkeit betrieben wird, ein Teil des vorauslaufenden Teils des Schuppenstromes vom ersten Fördermittel abgehoben werden. Die Mittel zum Anheben müssen dann immer mit gleicher Geschwindigkeit wie das zweite Fördermittel betrieben werden.The device described can be used for the separation of scale flows, in which the following workpiece rests on the leading workpiece. It is conceivable, however, a scale flow, wherein each of the leading workpiece rests on the respective subsequent workpiece. In this case, when the second conveyor belt is operated at a higher speed, a part of the leading part of the scale flow must be lifted off the first conveyor. The means for lifting must then always be operated at the same speed as the second conveyor.

Bei dem Betrieb einer beschriebenen Vorrichtung hat sich gezeigt, dass, insbesondere bei größeren Formaten der Werkstücke, Werkstücke in dem abgehobenen Teil des Schuppenstroms nicht vollständig vom Fördermittel abgehoben werden, sondern durch, beispielsweise aufgrund der Schwerkraft, auftretenden Biegungen oder Krümmungen zum Teil weiterhin mit dem Förderband in Kontakt stehen. Da während des Trennvorganges der abgehobene Teil des Schuppenstromes mit einer anderen Geschwindigkeit als das darunter befindliche Fördermittel angetrieben wird, kann es zu Beschädigungen der Werkstücke und/oder zu einer Deformation des Schuppenstromes kommen.In the operation of a described device has been shown that, especially in larger formats of the workpieces, workpieces are not completely lifted in the raised part of the scale flow from the conveyor, but by, for example, due to gravity, occurring bends or bends in part continue to be in contact with the conveyor belt. Since during the separation process, the lifted portion of the scale flow is driven at a different speed than the conveyor located below, it can cause damage to the workpieces and / or to a deformation of the scale flow.

Die Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zu schaffen, in der ein Schuppenstrom sicher und ohne Beschädigung der Werkstücke trennbar ist.The object of the present invention is therefore to provide a device in which a scale flow can be separated safely and without damaging the workpieces.

Die Aufgabe wird gelöst durch eine Vorrichtung, die die Merkmale des kennzeichnenden Teils des Anspruchs 1 umfasst.The object is achieved by a device comprising the features of the characterizing part of claim 1.

Demnach sind weitere Mittel zum Abheben von Werkstücken von zumindest einem der Fördermittel vorgesehen, welche auf zumindest ein Werkstück in einem zur Trennstelle beabstandeten Bereich des Schuppenstromes wirken. Diese weiteren Mittel zum Abheben können dabei auf dasselbe Werkstück wirken, auf welches bereits die ersten Mittel zum Abheben wirken. Die weiteren Mittel können aber auch ein dem der Trennstelle benachbarten Werkstück folgenden Werkstück erfassen. Mit diesen weiteren Mitteln zum Abheben von Werkstücken wird vermieden, dass Werkstücke zumindest teilweise das darunter angeordnete Fördermittel berühren.Accordingly, further means for lifting workpieces are provided by at least one of the conveying means, which act on at least one workpiece in a spaced apart from the separation point region of the scale flow. These further means for lifting can act on the same workpiece, which already act on the first means for lifting. However, the further means can also detect a workpiece adjacent to the workpiece adjacent to the separation point. With these further means for lifting workpieces is avoided that workpieces at least partially touch the conveyor disposed thereunder.

In einer vorteilhaften Ausgestaltung ist der Zeitraum, während dem die ersten Mittel zum Abheben von Werkstücken auf dieses Werkstück wirken und der Zeitraum, während dem die weiteren Mittel zu Abheben von Werkstücken auf zumindest ein Werkstück wirkt, gleichzeitig beginnen oder gleichzeitig enden. Auf diese Weise ist bei einem Schuppenstrom, in dem das nachfolgende Werkstück auf dem vorauslaufenden Werkstück aufliegt, sichergestellt, dass nach einem Zeitraum, in dem die beiden Fördermittel mit unterschiedlichen Geschwindigkeiten betrieben werden, der zuvor abgehobene Teil des Schuppenstromes derart in Kontakt mit dem Fördermittel gebracht wird, dass alle Werkstücke gleichzeitig wieder das Fördermittel berühren. Bei einem Schuppenstrom, in dem das vorauslaufende Werkstück auf dem nachfolgenden Werkstück aufliegt, ist analog sichergestellt, dass alle Werkstücke gleichzeitig und gleichmäßig vom Fördermittel abgehoben werden. Die ersten und die weiteren Mittel zum Anheben von Werkstücken können relativ zum Maschinengestell feststehen. Es können sich aber auch zumindest Bestandteile der Mittel zum Anheben von Werkstücken relativ zum Maschinengestell bewegen.In an advantageous embodiment, the period during which the first means for lifting workpieces act on this workpiece and the period during which the further means for lifting workpieces acts on at least one workpiece, start simultaneously or end simultaneously. In this way, in a shingled stream, in which the following workpiece rests on the leading workpiece, it is ensured that after a period in which the two conveying means are operated at different speeds, the previously lifted part of the scale flow is brought into contact with the conveying means that all workpieces touch the conveyor again at the same time. At a Scrap flow, in which the leading workpiece rests on the subsequent workpiece, is analogously ensured that all workpieces are lifted simultaneously and evenly from the conveyor. The first and the further means for lifting workpieces can be fixed relative to the machine frame. However, at least components of the means for lifting workpieces can also move relative to the machine frame.

In vorteilhafter Ausgestaltung der Erfindung umfassen die weiteren Mittel zum Anheben von Werkstücken Nocken. Zum Zwecke des Anhebens überragen diese Nocken zumindest zeitweise die Ebene zumindest eines Transportmittels, auf welcher die Werkstücke während des Transports aufliegen. So können beispielsweise zwei Nocken vorgesehen sein, die Werkstücke im Bereich ihrer Außenbereiche erfassen. Auch weitere Nocken können denkbar sein, um ein Durchbiegen des Werkstückes in seinem Mittenbereich zu vermeiden.In an advantageous embodiment of the invention, the further means for lifting workpieces comprise cams. For the purpose of lifting these cams protrude at least temporarily over the plane of at least one means of transport, on which the workpieces rest during transport. For example, two cams can be provided which detect workpieces in the area of their outer areas. Also, further cams may be conceivable in order to avoid bending of the workpiece in its central region.

Besonders vorteilhaft ist es, die Nocken der weiteren Mittel zum Anheben von Werkstücken auf oder an umlaufenden Transportmitteln anzuordnen. Die Länge des oder der Transportmittel ist dabei so auszulegen, dass Nocken im Maschinentakt auf die Werkstücke wirken.It is particularly advantageous to arrange the cams of the further means for lifting workpieces on or on circulating transport means. The length of the transport or the means of transport is designed so that cams act on the workpieces in the machine cycle.

Auch die ersten Mittel zum Anheben des der Trennstelle benachbarten Werkstücks können auf oder an umlaufenden Transportmitteln angeordnete Nocken aufweisen. Dabei können alle Nocken tragenden Transportmittel jeweils über ein erstes Umlenkmittel laufen, welche gleiche Geschwindigkeiten aufweisen. Diese jeweils ersten Umlenkmittel können angetrieben sein. Auf diese Weise wirken alle Nocken in gleichbleibender Phasenlage auf die Werkstücke. Umlenkmittel können dabei Zahnräder oder Riemenscheiben sein. Selbstverständlich kann auch ein einziges Umlenkmittel, etwa eine Welle, vorgesehen sein, über welche die Transportmittel laufen.The first means for lifting the workpiece adjacent to the separation point may also have cams arranged on or on peripheral transport means. In this case, all cam-carrying transport can each run over a first deflection, which have the same speeds. These respective first deflection means can be driven. In this way, all cams act in constant phase on the workpieces. Deflection means may be gears or pulleys. Of course, a single deflection means, such as a shaft, may be provided, over which the means of transport run.

In weiterer Ausgestaltung der Erfindung laufen die Transportmittel des weiteren Mittels zum Anheben von Werkstücken über weitere Umlenkmittel, wobei die Lage dieser weiteren Umlenkmittel relativ zum ersten Umlenkmittel veränderbar ist. Diese relative Lageänderung kann dabei parallel zu der Ebene der Fördermittel liegen, auf welcher die Werkstücke während des Transportes aufliegen. Die Lageänderung der Umlenkmittel führt zu einer Veränderung des Zeitraumes, während dem die Nocken auf die Werkstücke wirken. Somit kann der Zeitpunkt, zu dem die Werkstücke des der Trennstelle nachfolgenden Teils des Schuppenstromes nach dem Trennvorgang wieder in Kontakt mit den Fördermittel treten, verändert werden.In a further embodiment of the invention, the transport means of the further means for lifting workpieces run over further deflection means, wherein the position of this further deflection means relative to the first deflection means changeable is. This relative change in position may be parallel to the plane of the conveyor on which rest the workpieces during transport. The change in position of the deflection leads to a change in the period during which the cams act on the workpieces. Thus, the time at which the workpieces of the separation point subsequent part of the scale flow after the separation process again come into contact with the funding can be changed.

Vorteilhaft ist es, wenn zusätzlich die Position des oder der Nocken auf oder an dem Transportmittel veränderbar ist. Durch diese Maßnahme können die Mittel zum Anheben an die Formate der Werkstücke angepasst werden. Dies ist insbesondere dann von Vorteil, wenn die Vorrichtung im Zusammenhang mit einer Herstellungsmaschine wie etwa Bodenlegern, betrieben wird, auf oder mit welcher Werkstücke verschiedener Formate produziert werden können. Im Zusammenhang mit der Lageänderung der Umlenkmittel dient die Veränderung der Position des oder der Nocken dazu, dass die Nocken des ersten Mittels zum Anheben und die Nocken des weiteren Mittels zum Anheben gleichzeitig mit den Werkstücken in Kontakt treten oder gleichzeitig diesen Kontakt beenden.It is advantageous if in addition the position of the cam or on or on the transport means is variable. By this measure, the means for lifting the formats of the workpieces can be adjusted. This is particularly advantageous when the device is operated in conjunction with a manufacturing machine such as floor levelers, on or with which workpieces of various formats can be produced. In connection with the change in position of the deflection means, the change in the position of the cam or cams causes the cams of the first lifting means and the cams of the further lifting means to simultaneously contact the workpieces or simultaneously terminate this contact.

In weiterer Ausgestaltung der Erfindung ist zumindest eine Gegenlage vorgesehen, gegen welche die Werkstücke durch die ersten und/oder weiteren Mittel zum Abheben von Werkstücken von einem Fördermittel andrückbar sind.In a further embodiment of the invention, at least one counter-position is provided, against which the workpieces can be pressed by the first and / or further means for lifting workpieces from a conveyor.

Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor. Die einzelnen Figuren zeigen:

Fig. 1
eine Seitenansicht der erfindungsgemäßen Vorrichtung zum Trennen eines Schuppenstromes
Fig. 2
eine Draufsicht auf die Vorrichtung gemäß II-II in Fig. 1
Further embodiments of the invention will become apparent from the description and the claims. The individual figures show:
Fig. 1
a side view of the device according to the invention for separating a scale flow
Fig. 2
a plan view of the device according to II-II in Fig. 1st

Fig. 1 zeigt eine Vorrichtung zum Trennen eines Schuppenstromes 1 mit einem ersten Förderband 2 und einem zweiten Förderband 3. Das Förderband 3 läuft über Umlenkwalze 4, 5, 6 um. Auf den oberen Trumen der Förderbänder 2, 3 werden die Werkstücke 7, die geschuppt angeordnet sind, in Förderrichtung z gefördert. Über die mit der Umlenkwalze 6 koaxial angeordneten, aber mit unterschiedlicher Geschwindigkeit antreibbaren Umlenkrolle 8 werden zwei Transportketten oder -riemen 9, 10 geführt. Auf der Transportkette 9 ist ein Nocken 11 und auf der Transportkette 10 ein Nocken 12 angebracht. Der Drehsinn der Transportketten 9, 10 entspricht dem der Förderbänder 2, 3.Fig. 1 shows a device for separating a scale flow 1 with a first conveyor belt 2 and a second conveyor belt 3. The conveyor belt 3 runs over deflection roller 4, 5, 6 um. On the upper runs of the conveyor belts 2, 3, the workpieces 7, which are arranged scaled, conveyed in the conveying direction z. About the with the guide roller 6 coaxially arranged, but driven at different speeds pulley 8 two transport chains or belts 9, 10 out. On the transport chain 9, a cam 11 and on the transport chain 10, a cam 12 is mounted. The direction of rotation of the transport chains 9, 10 corresponds to that of the conveyor belts 2, 3rd

Das zweite Förderband 3 kann im Vergleich zum Förderband 2 mit gleicher oder höherer Geschwindigkeit angetrieben werden. Die Transportketten 9, 10 werden immer mit im Vergleich zum Förderband 2 gleicher Geschwindigkeit angetrieben. Der mit der Transportkette 10 umlaufende Nocken 12 überragt nach dem Passieren der Umlenkrolle 8 das obere Trum des Förderbandes 3 und hebt so ein Werkstück 7' und damit auch folgende Werkstücke 7 von dem Förderband 3 ab. In diesem Moment wird die Fördergeschwindigkeit des Förderbandes 3 erhöht, so dass der dem Werkstück 7' voranlaufende Teil des Schuppenstromes von den angehobenen Werkstücken 7' getrennt wird. Um zu vermeiden, dass die dem angehobenen Werkstück 7' folgenden Werkstücke 7 mit dem Förderband 3 in Kontakt kommen, passiert nach kurzer Zeit auch der Nocken 11 die Umlenkrolle 8 und hebt Werkstücke 7 von dem Förderband 3. Diese Situation während des Trennvorgangs ist in Fig. 1 dargestellt. Die Umlenkrolle 13, über welche die Transportkette 9 verläuft, und die Umlenkrolle 14, über die die Transportkette 10 verläuft, sind entsprechend dem Abstand der Nocken 11 und 12 beabstandet. Auf diese Weise werden die Nocken 11 und 12 gleichzeitig abgesenkt, so dass die abgehobenen Werkstücke 7, 7' gleichzeitig wieder auf dem Förderband abgelegt werden. Dieses Absenken erfolgt, nachdem das Förderband 3 wieder auf Geschwindigkeit des Förderbandes 2 gedrosselt wurde. Um eine feste Phasenlage der Nocken 11 und 12 sicherzustellen, haben die Transportketten 9 und 10 die gleiche Länge. Dies hat zur Folge, dass die Transportkette 9 zusätzlich noch über eine Umlenkrolle 15 geführt werden muss.The second conveyor belt 3 can be driven at the same or higher speed compared to the conveyor belt 2. The transport chains 9, 10 are always driven with compared to the conveyor belt 2 same speed. The circulating with the conveyor chain 10 cam 12 projects beyond the upper run of the conveyor belt 3 after passing through the guide roller 8 and so lifts a workpiece 7 'and thus also the following workpieces 7 from the conveyor belt 3. At this moment, the conveying speed of the conveyor belt 3 is increased, so that the part of the scale flow leading to the workpiece 7 'is separated from the raised workpieces 7'. In order to prevent the workpieces 7 following the lifted workpiece 7 'from coming into contact with the conveyor belt 3, after a short time the cam 11 also passes the deflection roller 8 and lifts workpieces 7 from the conveyor belt 3. This situation during the separation process is shown in FIG 1. The deflection roller 13, over which the transport chain 9 extends, and the deflection roller 14, over which the transport chain 10 extends, are spaced apart according to the spacing of the cams 11 and 12. In this way, the cams 11 and 12 are lowered simultaneously, so that the lifted workpieces 7, 7 'are simultaneously deposited again on the conveyor belt. This lowering takes place after the conveyor belt 3 has been throttled back to speed of the conveyor belt 2. In order to ensure a fixed phase position of the cams 11 and 12, the transport chains 9 and 10 have the same length. This has the consequence that the transport chain 9 additionally has to be guided over a deflection roller 15.

Die Vorrichtung 1 umfasst weiterhin einen am nicht dargestellten Maschinengestell angebrachten Rahmen 16, an dem zwei Lenker 17, 18 schwenkbar angeordnet sind. Die Lenker 17, 18 sind mit einer Koppelstange 19 verbunden. Die Koppelstange 19 trägt zwei Umlenkrollen 20, 21, über welche ein Band 22 umläuft. Dieses Band 22 liegt aufgrund der Gewichtskraft der Lenker 17, 18, der Koppelstange 19 und der Umlenkrollen 20, 21 auf den Werkstücken 7 auf und drückt diese gegen die Nocken 11, 12. Das Band 22 wird dabei nur von den Werkstücken 7, 7', die im angehobenen Zustand im wesentlichen von den Nocken 11 und 12 gefördert werden, bewegt. Die Elemente 17 bis 22 bilden somit eine Gegenlage zu den Nocken 11 und 12, so dass die Werkstücke 7 klemmend festgehalten werden.The device 1 further comprises a frame 16, not shown on the machine frame, on the two links 17, 18th are arranged pivotally. The links 17, 18 are connected to a coupling rod 19. The coupling rod 19 carries two pulleys 20, 21, over which a belt 22 rotates. This band 22 is due to the weight of the handlebars 17, 18, the coupling rod 19 and the guide rollers 20, 21 on the workpieces 7 and pushes them against the cam 11, 12. The tape 22 is only from the workpieces 7, 7 ' , which are supported in the raised state substantially by the cams 11 and 12 moves. The elements 17 to 22 thus form a counter position to the cams 11 and 12, so that the workpieces 7 are held in a clamping manner.

Die Fig. 2 zeigt eine Draufsicht der erfindungsgemäßen Vorrichtung 1. Aus dieser Figur wird deutlich, dass die Vorrichtung 1 zwei von den oben beschriebenen Einheiten umfasst, die spiegelbildlich zueinander angeordnet sind. Bezugszeichenliste 1 Vorrichtung zum Trennen eines Schuppenstromes 2 erstes Förderband 3 zweites Förderband 4 Umlenkwalze 5 Umlenkwalze 6 Umlenkwalze 7 7' Werkstück 8 Umlenkrolle 9 Transportkette 10 Transportkette 11 Nocken 12 Nocken 13 Umlenkrolle 14 Umlenkrolle 15 Umlenkrolle 16 Rahmen 17 Lenker 18 Lenker 19 Koppelstange 20 Umlenkrolle 21 Umlenkrolle 22 Band z Förderrichtung der Werkstücke 7 FIG. 2 shows a top view of the device 1 according to the invention. It can be seen from this figure that the device 1 comprises two of the units described above, which are arranged in mirror images of one another. LIST OF REFERENCE NUMBERS 1 Device for separating a scale flow 2 first conveyor belt 3 second conveyor belt 4 deflecting 5 deflecting 6 deflecting 7 7 ' workpiece 8th idler pulley 9 transport chain 10 transport chain 11 cam 12 cam 13 idler pulley 14 idler pulley 15 idler pulley 16 frame 17 handlebars 18 handlebars 19 coupling rod 20 idler pulley 21 idler pulley 22 tape z Conveying direction of the workpieces 7

Claims (9)

Vorrichtung (1) zum Trennen eines geförderten Stromes von geschuppt übereinander liegenden, flachen Werkstücken (7), welche (1) die folgenden Merkmale umfasst: - zwei aufeinander folgende Fördermittel (2, 3), - wobei die Fördermittel (2, 3) zeitweise mit verschiedenen Geschwindigkeiten antreibbar sind, so dass der Schuppenstrom in einen vorlaufenden und einen nachlaufenden Teil trennbar ist, - und erste Mittel zum Abheben (8, 10, 12, 14) des der Trennstelle benachbarten Werkstücks (7) eines Teils des Schuppenstroms von zumindest einem der Fördermittel (2, 3), - wobei die ersten Mittel zum Abheben (8, 10, 12, 14) zumindest während eines Zeitraumes in Wirkverbindung mit dem Werkstück (7) haltbar sind, in dem die Fördermittel (2, 3) mit verschiedenen Geschwindigkeiten angetrieben werden, dadurch gekennzeichnet, dass
weitere Mittel zum Abheben (8, 9, 11, 13, 15) von Werkstücken (7) von zumindest einem Fördermittel (2, 3) vorgesehen sind, welche (8, 9, 11, 13, 15) auf zumindest ein Werkstück (7) in einem zur Trennstelle beabstandeten Bereich des Schuppenstromes wirken.Device (1) for separating a conveyed stream of scaly superimposed flat workpieces (7), which (1) comprises the following features: two successive conveying means (2, 3), - wherein the conveying means (2, 3) are temporarily drivable at different speeds, so that the scale flow is separable into a leading and a trailing part, - and first means for lifting (8, 10, 12, 14) of the separation point adjacent workpiece (7) of a part of the scale flow of at least one of the conveying means (2, 3), - wherein the first means for lifting (8, 10, 12, 14), at least during a period of time in operative connection with the workpiece (7) are durable, in which the conveying means (2, 3) are driven at different speeds, characterized in that
further means for lifting (8, 9, 11, 13, 15) of workpieces (7) of at least one conveying means (2, 3) are provided, which (8, 9, 11, 13, 15) on at least one workpiece (7 ) act in a region spaced apart from the separation point of the scale flow. Vorrichtung (1) nach Anspruch 1,
dadurch gekennzeichnet, dass - der Zeitraum, während dem die ersten Mittel zum Abheben (8, 10, 12, 14) des der Trennstelle benachbarten Werkstücks (7) eines Teils des Schuppenstroms von einem der Fördermittel (2, 3) auf dieses Werkstück (7) wirken, und - der Zeitraum, während dem die weiteren Mittel zum Abheben (8, 9, 11, 13, 15) von Werkstücken (7) auf zumindest ein Werkstück (7) in einem zur Trennstelle beabstandeten Bereich des Schuppenstromes wirken, - gleichzeitig beginnen oder gleichzeitig enden. Device (1) according to claim 1,
characterized in that - The period during which the first means for lifting (8, 10, 12, 14) of the separation point adjacent workpiece (7) of a part of the scale flow of one of the conveying means (2, 3) act on this workpiece (7), and - The period during which the further means for lifting (8, 9, 11, 13, 15) of workpieces (7) act on at least one workpiece (7) in a distance to the separation point of the scale flow, - start at the same time or end at the same time. Vorrichtung (1) nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
die weiteren Mittel zum Anheben (8, 9, 11, 13, 15) von Werkstücken (7) Nocken (11) umfassen, welche zumindest zeitweise die Ebene zumindest eines Transportmittels (2, 3), auf welcher die Werkstücke (7) aufliegen, überragen.Device (1) according to one of the preceding claims,
characterized in that
the further means for lifting (8, 9, 11, 13, 15) of workpieces (7) comprise cams (11) which at least temporarily cover the plane of at least one transporting means (2, 3) on which the workpieces (7) rest; overtop. Vorrichtung (1) nach vorstehendem Anspruch,
dadurch gekennzeichnet, dass
die Nocken (11) auf oder an umlaufenden Transportmitteln (9) angeordnet sind.Device (1) according to the preceding claim,
characterized in that
the cams (11) are arranged on or on circulating transport means (9). Vorrichtung (1) nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, - dass die ersten Mittel zum Anheben (8, 10, 12, 14) des der Trennstelle benachbarten Werkstücks (7) ebenfalls auf umlaufenden Transportmitteln (10) angeordnete Nocken (12) aufweisen, und - dass alle Nocken tragende Transportmittel (9, 10) jeweils über ein erstes Umlenkmittel (8) laufen, welche (8) die gleiche Umfangsgeschwindigkeit aufweisen. Device (1) according to one of the preceding claims,
characterized, - That the first means for lifting (8, 10, 12, 14) of the cutting point adjacent workpiece (7) also on circulating transport means (10) arranged cams (12), and - That all cam carrying transport means (9, 10) in each case via a first deflection means (8) run, which (8) have the same peripheral speed. Vorrichtung (1) nach einem der beiden vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
die umlaufenden Transportmittel (9) des weiteren Mittels zum Anheben (8, 9, 11, 13, 15) von Werkstücken (7) über weitere Umlenkmittel (13) laufen, wobei die Lage der weiteren Umlenkmittel (13) relativ zu den ersten Umlenkmitteln (8) veränderbar ist.Device (1) according to one of the two preceding claims,
characterized in that
the circulating transport means (9) of the further means for lifting (8, 9, 11, 13, 15) of workpieces (7) via further deflection means (13) run, wherein the position of the further deflection means (13) relative to the first deflection means (8) is variable. Vorrichtung (1) nach einem der vier vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
die Position des oder der Nocken (11) der weiteren Mittel zum Anheben (8, 9, 11, 13, 15) von Werkstücken (7) auf den Transportmitteln (9) veränderbar ist.Device (1) according to one of the four preceding claims,
characterized in that
the position of the cam or cams (11) of the further means for lifting (8, 9, 11, 13, 15) of workpieces (7) on the transport means (9) is variable. Vorrichtung (1) nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass
eine Gegenlage (17, 18, 19, 20, 21, 22) vorgesehen ist, gegen welche Werkstücke (7) durch die ersten (8, 10, 12, 14) und/oder weiteren Mittel zum Abheben (8, 9, 11, 13, 15) von Werkstücken (7) von einem Fördermittel (2, 3) andrückbar sind.Device (1) according to one of the preceding claims,
characterized in that
an abutment (17, 18, 19, 20, 21, 22) is provided, against which workpieces (7) by the first (8, 10, 12, 14) and / or further lifting means (8, 9, 11, 13, 15) of workpieces (7) by a conveying means (2, 3) are pressed. Verfahren zum Trennen eines kontinuierlich geförderten Stromes von geschuppt übereinander liegenden, flachen Werkstücken (7), - wobei der Schuppenstrom durch zwei aufeinander folgende Fördermittel (2, 3) gefördert wird, - wobei die Fördermittel (2, 3) zeitweise mit unterschiedlichen Geschwindigkeiten angetrieben werden, so dass der Schuppenstrom in einen vorlaufenden und einen nachlaufenden Teil getrennt wird, - und wobei das der Trennstelle benachbarte Werkstück (7) eines der beiden Teile des Schuppenstroms während eines Zeitraumes, in dem die Fördermittel mit verschiedenen Geschwindigkeiten angetrieben werden, von dem ersten oder dem zweiten Fördermittel (2, 3) abgehoben werden, dadurch gekennzeichnet, dass
auch Werkstücke (7), welche sich in einem zur Trennstelle beabstandeten Bereich des Schuppenstromes befinden, von dem ersten oder dem zweiten Fördermittel (2, 3) abgehoben werden.Method for separating a continuously conveyed stream of scalloped flat workpieces (7), - wherein the scale flow is conveyed by two successive conveying means (2, 3), - wherein the conveying means (2, 3) are temporarily driven at different speeds, so that the scale flow is separated into a leading and a trailing part, and wherein the part (7) of one of the two parts of the scale flow adjacent to the separating point is lifted off the first or the second conveying means (2, 3) during a period in which the conveying means are driven at different speeds, characterized in that
Also workpieces (7), which are located in a distance to the separation point of the scale flow, are lifted from the first or the second conveyor (2, 3).
EP05023916.9A 2004-11-16 2005-11-03 Device for separating a continuous conveyed overlapping formation of flat products Active EP1657200B1 (en)

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DE200410055325 DE102004055325B4 (en) 2004-11-16 2004-11-16 Device for separating a conveyed stream of scalloped, flat workpieces

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DE102011003380B4 (en) 2011-01-31 2013-06-06 Windmöller & Hölscher Kg Method and system for processing at least two consecutive orders for the production of bags
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WO2014040187A1 (en) 2012-09-12 2014-03-20 Conception Impack Dtci Inc. System for repositioning flat objects
EP2949439B1 (en) * 2014-05-12 2021-08-11 HOMAG GmbH Processing device and processing method
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Publication number Publication date
EP1657200B1 (en) 2014-05-14
ES2487192T3 (en) 2014-08-20
DE102004055325B4 (en) 2007-08-16
DE102004055325A1 (en) 2006-05-24

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