EP3374299A1 - Belt buffer - Google Patents

Belt buffer

Info

Publication number
EP3374299A1
EP3374299A1 EP16788069.9A EP16788069A EP3374299A1 EP 3374299 A1 EP3374299 A1 EP 3374299A1 EP 16788069 A EP16788069 A EP 16788069A EP 3374299 A1 EP3374299 A1 EP 3374299A1
Authority
EP
European Patent Office
Prior art keywords
buffer
band
bands
inlet
height
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.)
Pending
Application number
EP16788069.9A
Other languages
German (de)
French (fr)
Inventor
Kurt Philipp
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.)
Rotzinger AG
Original Assignee
Rotzinger AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rotzinger AG filed Critical Rotzinger AG
Publication of EP3374299A1 publication Critical patent/EP3374299A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/51—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
    • B65G47/5104—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles
    • B65G47/5109—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO
    • B65G47/5113—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors
    • B65G47/5118—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors with variable accumulation capacity
    • B65G47/5131—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors with variable accumulation capacity by relative displacement between conveyors or conveyor parts and bridging means therebetween
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/51—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
    • B65G47/5104—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles
    • B65G47/5109—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/64—Switching conveyors
    • B65G47/644—Switching conveyors by a pivoting displacement of the switching conveyor
    • B65G47/645—Switching conveyors by a pivoting displacement of the switching conveyor about a horizontal axis
    • B65G47/647—Switching conveyors by a pivoting displacement of the switching conveyor about a horizontal axis the axis being perpendicular to the conveying direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/68—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/68—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor
    • B65G47/681—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor from distinct, separate conveyor lanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/68—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor
    • B65G47/71—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor the articles being discharged or distributed to several distinct separate conveyors or to a broader conveyor lane

Definitions

  • the invention relates to a tape buffer according to the preamble of claim 1.
  • belt buffer is understood for the purpose of this description additional conveyor belts, which are inserted in a conveyor line between an incoming and a forth ⁇ ing conveyor belt to allow intermediate storage of subsidized products or to extend the conveyor line targeted.
  • Such belt buffers are used, for example, for conveying unpackaged products if the products have to be intermediately stored between production and packaging in the event of disruptions in the packaging area so that overflow or rejects can not occur. This significantly increases the efficiency of the production lines.
  • These band buffers are usually designed according to the principle "first-in / first-out” (FIFO).
  • a band buffer can also fulfill a cooling function. In biscuit production, this is often the case because the freshly-produced products are still hot straight from the oven and must be gently chilled before they can be packaged.
  • the oven must be able to be emptied in the event of a longer disruption in the packaging area, especially in the case of very valuable complex products that can no longer be re-processed.
  • the buffer line be designed so that in any case the complete oven length can be moved into the tape buffer.
  • the inlet area of the belt buffer is responsible for inspecting the incoming product lines for length, height and distance so that only acceptable products reach the packaging machines. This is usually detected with optical sensors.
  • the non akzep ⁇ TableN product lines are removed to prevent further disturbances.
  • the requirements for the inlet area are also the zero-pressure formation of product formations. These product formations are usually made with one or more short ribbons. The number and length of these tapes depends on the type, consistency and dimensions of the product and on the feed rate.
  • the formations consist of a certain number of product lines, which are clocked up at regular intervals.
  • the formations are driven on belts whose length harmonizes with the length of the product formation.
  • the band buffer consists of any number of successive buffer bands of the length of a formation or an integer multiple of the formation length.
  • buffer bands are usually arranged one above the other.
  • the buffering effect is achieved by moving the product formations towards the outlet at a higher speed. Then the formations will be clocked in the outlet area of the buffer in From ⁇ dependence on the packaging speed. Typically, the total packaging performance is 15% to 20% faster than the production output. This allows the buffer level to be emptied during production.
  • the formations are usually clocked off again in rows. This series club ⁇ zelung depends on the number of packaging machines, their speed and the type of packaging.
  • the invention has for its object to further improve the efficiency and capacity of tape buffers with tapes on several levels.
  • Fig. 1 shows a band buffer with three levels between an incoming and an outgoing band
  • FIG. 2 shows a band buffer with three levels and three outgoing bands
  • FIG. 3 shows a band buffer with three levels, three incoming and three outgoing bands
  • Fig. 6 is a plan view of an alternative Ausique ⁇ tion form.
  • the band buffer 1 shown in FIG. 1 consists of three mutually superposed planes of band sections, which in turn consist of a plurality of bands 2, 3, 4, 5 arranged one behind the other. It is a modular system in which the individual bands have a length corresponding to the multiple of a product formation. The individual bands are driven individually by means of servomotors 6.
  • the band buffer 1 is interposed between an incoming from the production line 7 and one to a packaging plant sauce ⁇ Henden band. 8
  • the transfer edges of the input-side bands 2, which take over the products from the incoming band 7, are height-adjustable, as indicated by the arrow 9. In this way it is possible the products di ⁇ rectly to bring ie without the interposition of a switch on the input side bands 2 of the band buffer.
  • the incoming products are loaded to the lower level of the tape buffer.
  • the Expertga ⁇ bekanten the bands 5, which pass the products to the outgoing band are also adjustable in height, as indicated by the arrow 10. In the position shown, the products are delivered from the middle level to the packaging.
  • An advantage of the direct transfer without switch consists DA rin that the height-adjustable bands are actively used as a buffer belts, so that the same length of tape ⁇ buffer a higher capacity or, conversely, a gewünsch ⁇ te capacity with a smaller overall length is achieved. Another advantage is that there is a cost savings by eliminating the switches.
  • FIGS. 2-6 only the upper one of the similar bands of the modular system is provided with reference numerals.
  • the inlet region of the tape buffer is as ge shows ⁇ in Fig. 3, just as easily possible to process a plurality of superimposed lie ⁇ constricting levels with incoming product lines, due to the height adjustment of the input and output side bands in many different combinations ,
  • an often required ejection function shown in FIG. 5 can also be integrated. If defective products are detected at the product entrance, the belts 2 are raised and the defective products are simply removed. Due to the modular structure of this tape buffer the most different layout requirements can be covered. In addition to the classic in-line arrangement, it is also possible, as shown in FIG. 6, to cover very different space requirements by the use of curved belts. Here, it should be noted that the settlement of the alignments being dimensioned so that one or more complete Pro ⁇ duktformationen can be placed thereon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Intermediate Stations On Conveyors (AREA)

Abstract

The invention relates to a belt buffer (1) comprising a plurality of superimposed buffer strips (3, 4, 5), in which the takeover edges of the buffer strips are height-adjustable at the inlet and the transfer edges of the buffer strips are height-adjustable at the outlet. The buffer strips can be formed of a plurality of successively arranged belt modules.

Description

Bandpuffer band buffer
Die Erfindung betrifft einen Bandpuffer gemäss dem Oberbegriff des Anspruchs 1. The invention relates to a tape buffer according to the preamble of claim 1.
Unter dem Begriff Bandpuffer werden für den Zweck dieser Beschreibung zusätzliche Förderbänder verstanden, die in einer Förderstrecke zwischen ein ankommendes und ein abge¬ hendes Förderband eingefügt werden, um eine Zwischenspei- cherung von geförderten Produkten zu ermöglichen oder die Förderstrecke gezielt zu verlängern. The term belt buffer is understood for the purpose of this description additional conveyor belts, which are inserted in a conveyor line between an incoming and a forth ¬ ing conveyor belt to allow intermediate storage of subsidized products or to extend the conveyor line targeted.
Solche Bandpuffer kommen beispielsweise bei der Förderung unverpackter Produkte zum Einsatz, wenn zwischen der Pro- duktion und der Verpackung die Produkte bei Störungen im Verpackungsbereich zwischengespeichert werden müssen, damit kein Überlauf oder Ausschuss entstehen kann. Dies erhöht massgeblich die Effizienz der Produktionslinien. Meist werden diese Bandpuffer gemäss dem Prinzip „first-in/first- out" (FIFO) konzipiert. Such belt buffers are used, for example, for conveying unpackaged products if the products have to be intermediately stored between production and packaging in the event of disruptions in the packaging area so that overflow or rejects can not occur. This significantly increases the efficiency of the production lines. These band buffers are usually designed according to the principle "first-in / first-out" (FIFO).
Ferner können mit einer Verlängerung der Bandstrecke zwischen Produktion und Verpackung die Produkte noch gekühlt werden, bevor diese dann verpackt werden können. Somit kann ein Bandpuffer neben der flexiblen Pufferung von Störungen auch noch eine Kühlfunktion erfüllen. In der Biscuitproduk- tion ist dies oft der Fall, weil die frisch produzierten Produkte direkt aus dem Ofen noch heiss sind und schonend abgekühlt werden müssen, bevor sie verpackt werden können. Furthermore, with an extension of the strip line between production and packaging, the products can still be cooled before they can then be packed. Thus, in addition to the flexible buffering of disturbances, a band buffer can also fulfill a cooling function. In biscuit production, this is often the case because the freshly-produced products are still hot straight from the oven and must be gently chilled before they can be packaged.
Zusätzlich kann es eine Anforderung sein, dass der Ofen bei einer längeren Störung im Verpackungsbereich auch noch leergefahren werden können muss, insbesondere bei sehr werthaltigen komplexen Produkten, die nicht mehr einem Re- Work zugeführt werden können. In einem solchen Fall muss die Pufferstrecke so ausgelegt sein, dass in jedem Fall noch die komplette Ofenlänge in den Bandpuffer hineingefahren werden kann. In addition, it may be a requirement that the oven must be able to be emptied in the event of a longer disruption in the packaging area, especially in the case of very valuable complex products that can no longer be re-processed. In such a case must the buffer line be designed so that in any case the complete oven length can be moved into the tape buffer.
In diesen Bandpuffern werden die ankommenden Produktreihen synchronisiert im Einlauf des Bandpuffers aufgenommen und staudrucklos zu Formationen oder Produktgruppen aufgetaktet. Diese Formationen werden dann mit höherer Geschwindigkeit in Richtung Auslauf des Bandpuffers transportiert, um dann den Verpackungsmaschinen staudrucklos und lückenlos zugeführt zu werden. In these tape buffers, the incoming product series are recorded synchronized in the inlet of the tape buffer and clocked without pressure to formations or product groups. These formations are then transported at a higher speed in the direction of the outlet of the belt buffer, in order then to be fed to the packaging machines without back pressure and without any gaps.
Der Einlaufbereich des Bandpuffers ist dafür zuständig, dass die ankommenden Produktreihen auf Länge und Höhe und Abstand zueinander inspiziert werden, damit nur akzeptable Produkte zu den Verpackungsmaschinen gelangen. Dies wird zumeist mit optischen Sensoren detektiert. Die nicht akzep¬ tablen Produktreihen werden ausgeschleust, um Folgestörungen zu vermeiden. The inlet area of the belt buffer is responsible for inspecting the incoming product lines for length, height and distance so that only acceptable products reach the packaging machines. This is usually detected with optical sensors. The non akzep ¬ TableN product lines are removed to prevent further disturbances.
Die Anforderungen an den Einlaufbereich bestehen im Weiteren in der staudrucklosen Bildung von Produktformationen. Diese Produktformationen werden im Normalfall mit einem oder mehreren kurzen Bändern gemacht. Anzahl und Länge dieser Bänder richtet sich nach Art, Konsistenz und Abmessungen des Produkts und nach der Zufuhrgeschwindigkeit. The requirements for the inlet area are also the zero-pressure formation of product formations. These product formations are usually made with one or more short ribbons. The number and length of these tapes depends on the type, consistency and dimensions of the product and on the feed rate.
Die Formationen bestehen aus einer bestimmten Anzahl von Produktreihen, die in regelmässigen Abständen aufgetaktet werden. Die Formationen werden auf Bänder gefahren, deren Länge mit der Länge der Produktformation harmoniert. Der Bandpuffer besteht aus einer beliebigen Anzahl von hintereinander geschalteten Pufferbändern mit der Länge einer Formation oder eines ganzzahligen Vielfachen der Formationslänge . The formations consist of a certain number of product lines, which are clocked up at regular intervals. The formations are driven on belts whose length harmonizes with the length of the product formation. The band buffer consists of any number of successive buffer bands of the length of a formation or an integer multiple of the formation length.
Zur Anpassung an einen verfügbaren Raum mit begrenzter Einbaulänge werden in der Regel mehrere Ebenen aus Pufferbändern übereinander angeordnet. Die Pufferwirkung wird dadurch erzielt, dass die Produktformationen mit höherer Geschwindigkeit in Richtung Auslauf gefahren werden. In Ab¬ hängigkeit von der Verpackungsgeschwindigkeit werden dann die Formationen im Auslaufbereich des Puffers aufgetaktet. Typischerweise ist die gesamte Verpackungsleistung 15% bis 20% schneller ausgelegt als die Produktionsleistung. Damit kann der Pufferfüllstand während der Produktion geleert werden. Am Auslauf des Bandpuffers werden die Formationen zumeist wieder reihenweise abgetaktet. Diese Reihenverein¬ zelung hängt von der Anzahl der Verpackungsmaschinen, ihrer Geschwindigkeit und der Art der Verpackung ab. To adapt to an available space with limited installation length several levels of buffer bands are usually arranged one above the other. The buffering effect is achieved by moving the product formations towards the outlet at a higher speed. Then the formations will be clocked in the outlet area of the buffer in From ¬ dependence on the packaging speed. Typically, the total packaging performance is 15% to 20% faster than the production output. This allows the buffer level to be emptied during production. At the outlet of the band buffer, the formations are usually clocked off again in rows. This series club ¬ zelung depends on the number of packaging machines, their speed and the type of packaging.
Die Zuführung der Produkte zu den verschiedenen Ebenen am Eingang des Bandpuffers erfolgt im Stand der Technik mit einer Weiche in Form eines höhenverstellbaren Bands. In gleicher Weise erfolgt mit einer Weiche die Abgabe von den verschiedenen Ebenen am Ausgang des Bandpuffers. The supply of the products to the various levels at the entrance of the band buffer takes place in the prior art with a switch in the form of a height-adjustable band. In the same way, the discharge from the various levels takes place at the output of the band buffer with a switch.
Der Erfindung liegt die Aufgabe zugrunde, die Effizienz und die Kapazität von Bandpuffern mit Bändern auf mehreren Ebenen weiter zu verbessern. The invention has for its object to further improve the efficiency and capacity of tape buffers with tapes on several levels.
Erfindungsgemäss wird dies erreicht durch die kennzeichnen¬ den Merkmale des Anspruchs 1. Im Folgenden werden anhand der beiliegenden Zeichnungen bevorzugte Ausführungsbeispie¬ le der Erfindung beschrieben. Es zeigen Fig. 1 einen Bandpuffer mit drei Ebenen zwischen einem ankommenden und einem abgehenden Band According to the invention this is achieved by the characterizing ¬ the features of claim 1. In the following, preferred Ausführungsbeispie ¬ le of the invention will be described with reference to the accompanying drawings. Show it Fig. 1 shows a band buffer with three levels between an incoming and an outgoing band
Fig. 2 einen Bandpuffer mit drei Ebenen und drei abge- henden Bändern, FIG. 2 shows a band buffer with three levels and three outgoing bands, FIG.
Fig. 3 einen Bandpuffer mit drei Ebenen, drei ankommenden und drei abgehenden Bändern, 3 shows a band buffer with three levels, three incoming and three outgoing bands,
Fig. 4 einen Bandpuffer mit umkehrbarer Bandlaufrichtung für das Verfahren „first-in/last-out"4 shows a tape buffer with reversible tape direction for the method "first-in / last-out"
(FILO) , (FILO),
Fig. 5 das Ausschleusen von Ausschuss  Fig. 5, the rejection of committee
Fig. 6 eine Draufsicht auf eine alternative Ausfüh¬ rungsform. Fig. 6 is a plan view of an alternative Ausfüh ¬ tion form.
Der in Fig. 1 gezeigte Bandpuffer 1 besteht aus drei über- einander angeordneten Ebenen von Bandstrecken, die ihrerseits aus mehreren hintereinander angeordneten Bändern 2, 3, 4, 5 bestehen. Es handelt sich um ein modulares System, bei dem die einzelnen Bänder eine dem Vielfachen einer Produktformation entsprechende Länge besitzen. Die einzelnen Bänder sind mittels Servomotoren 6 individuell angetrieben. The band buffer 1 shown in FIG. 1 consists of three mutually superposed planes of band sections, which in turn consist of a plurality of bands 2, 3, 4, 5 arranged one behind the other. It is a modular system in which the individual bands have a length corresponding to the multiple of a product formation. The individual bands are driven individually by means of servomotors 6.
Anstelle von drei Ebenen ist grundsätzlich auch eine andere Zahl von Ebenen möglich, beispielsweise zwei, vier oder mehr . In principle, instead of three levels, another number of levels may be possible, for example two, four or more.
Der Bandpuffer 1 ist zwischen einem von der Produktion ankommenden Band 7 und einem zu einer Verpackungsanlage abge¬ henden Band 8 eingefügt. Die Übernahmekanten der eingangs- seitigen Bänder 2, welche die Produkte vom ankommenden Band 7 übernehmen, sind höhenverstellbar, wie durch den Pfeil 9 angegeben. Auf diese Weise ist es möglich die Produkte di¬ rekt, d.h. ohne Zwischenschaltung einer Weiche, auf die eingangsseitigen Bänder 2 des Bandpuffers zu bringen. Bei der gezeigten Position der Bänder 2 werden die ankommenden Produkte auf die untere Ebene des Bandpuffers geladen. Ausgangsseitig ist die Situation entsprechend: Die Überga¬ bekanten der Bänder 5, welche die Produkte an das abgehende Band übergeben, sind ebenfalls höhenverstellbar, wie durch den Pfeil 10 angegeben. Bei der gezeigten Position werden die Produkte von der mittleren Ebene zur Verpackung abgegeben . The band buffer 1 is interposed between an incoming from the production line 7 and one to a packaging plant abge ¬ Henden band. 8 The transfer edges of the input-side bands 2, which take over the products from the incoming band 7, are height-adjustable, as indicated by the arrow 9. In this way it is possible the products di ¬ rectly to bring ie without the interposition of a switch on the input side bands 2 of the band buffer. With the position of the belts 2 shown, the incoming products are loaded to the lower level of the tape buffer. On the output side, the situation is corresponding: The Überga ¬ bekanten the bands 5, which pass the products to the outgoing band, are also adjustable in height, as indicated by the arrow 10. In the position shown, the products are delivered from the middle level to the packaging.
Ein Vorteil der direkten Übergabe ohne Weichen besteht da- rin, dass die höhenverstellbaren Bänder aktiv als Pufferbänder genutzt werden, so dass bei gleicher Länge des Band¬ puffers eine höhere Kapazität oder umgekehrt eine gewünsch¬ te Kapazität mit einer geringeren Baulänge erzielbar ist. Ein weiterer Vorteil besteht darin, dass sich durch den Wegfall der Weichen eine Kosteneinsparung ergibt. An advantage of the direct transfer without switch consists DA rin that the height-adjustable bands are actively used as a buffer belts, so that the same length of tape ¬ buffer a higher capacity or, conversely, a gewünsch ¬ te capacity with a smaller overall length is achieved. Another advantage is that there is a cost savings by eliminating the switches.
Durch die Höhenverstellbarkeit der eingangsseitigen und ausgangsseitigen Bänder 2, 5 können mehrere Anforderungen ohne zusätzliche Länge und Bandausrüstung abgedeckt werden, beispielsweise die klassische Zusammenführung der mehreren Pufferebenen auf eine Förderebene in Richtung Verpackungs¬ bereich . Eine weitere Anforderung ist mit der in Fig. 2 gezeigten Ausführungsform mit mehreren abführenden Bändern erfüllbar. Bei dieser Ausführungsform können mehrere Förderebenen mit Produkt beschickt werden. Ausserdem können diese Ebenen auch mit unterschiedlichen Geschwindigkeiten betrieben wer- den. Due to the height adjustability of the input-side and output-side bands 2, 5, several requirements can be covered without additional length and belt equipment, for example, the classical merger of several buffer layers on a conveying plane in the direction of packaging ¬ area. Another requirement can be met with the embodiment shown in FIG. 2 with several laxative bands. In this embodiment, several delivery levels can be charged with product. In addition, these levels can also be operated at different speeds.
In den Figuren 2-6 ist jeweils nur das obere der gleichartigen Bänder des modularen Systems mit Bezugszeichen versehen . Im Einlaufbereich des Bandpuffers ist es, wie in Fig. 3 ge¬ zeigt, ebenso problemlos möglich, mehrere übereinander lie¬ gende Ebenen mit einlaufenden Produktreihen verarbeiten zu können, und zwar infolge der Höhenverstellbarkeit der ein- gangs- und ausgangsseitigen Bänder in vielen verschiedenen Kombinationen . In FIGS. 2-6, only the upper one of the similar bands of the modular system is provided with reference numerals. In the inlet region of the tape buffer is as ge shows ¬ in Fig. 3, just as easily possible to process a plurality of superimposed lie ¬ constricting levels with incoming product lines, due to the height adjustment of the input and output side bands in many different combinations ,
Der Bandpuffer kann, wie in Fig. 4 gezeigt, auch im „first- in/last-out"- Prinzip betrieben werden. Hierfür sind die Pufferbänder, wie durch die Doppelpfeile angedeutet, rever- sierbar angetrieben und der Einlauf und der Auslauf des Bandpuffers liegen auf derselben Seite. The band buffer can also be operated in the "first-in / last-out" principle, as shown in Fig. 4. For this purpose, the buffer bands are reversibly driven as indicated by the double arrows and the inlet and the outlet of the band buffer lie on the same page.
Zusätzlich ist auch eine oft erforderliche, in Fig. 5 ge- zeigte Auswurffunktion integrierbar. Wenn beim Produkteingang fehlerhafte Produkte erfasst werde, werden die Bänder 2 angehoben und die fehlerhaften Produkte einfach ausgeschleust . Durch den modularen Aufbau dieses Bandpuffers können die unterschiedlichsten Layout-Anforderungen abgedeckt werden. Neben der klassischen Inline-Anordnung ist es auch möglich, wie in Fig. 6 gezeigt, durch den Einsatz von Kurvenbändern sehr unterschiedliche Raumanforderungen abzudecken. Hierbei ist zu beachten, dass die Abwicklung der Kurvenbänder so dimensioniert ist, dass eine oder mehrere komplette Pro¬ duktformationen darauf platziert werden können. In addition, an often required ejection function shown in FIG. 5 can also be integrated. If defective products are detected at the product entrance, the belts 2 are raised and the defective products are simply removed. Due to the modular structure of this tape buffer the most different layout requirements can be covered. In addition to the classic in-line arrangement, it is also possible, as shown in FIG. 6, to cover very different space requirements by the use of curved belts. Here, it should be noted that the settlement of the alignments being dimensioned so that one or more complete Pro ¬ duktformationen can be placed thereon.
Anstelle des in den Ausführungsbeispielen beschriebenen mo- dularen Systems ist auch eine einfache Ausführungsform mög¬ lich, bei der auf jeder Ebene nur ein Band mit höhenverstellbaren Übernahme- und Übergabekanten vorhanden ist. Die steuerungstechnische Umsetzung des vorgeschlagenen Bandpuffers erfolgt in einem Steuerschrank, der vorzugswei¬ se in der Nähe des Bandpuffers angeordnet ist. Die An¬ triebstechnik der Pufferbänder und die Antriebe für die Hö- henverstellbarkeit der Pufferbänder werden mit Servomotoren ausgeführt. Dadurch wird es möglich, dass Produkthandhabung und Förderleistung optimal eingestellt werden kann. Die Auslaufleistung des Bandpuffers richtet sich nach dessen Füllstand. Das heisst, dass je höher der Füllstand wird, desto schneller werden die Verpackungsmaschinen mit Produkt versorgt. Damit wirkt man einer drohenden Überfüllung des Puffers frühzeitig aktiv entgegen und vermeidet Überlauf und Verluste. Die Linieneffizienz kann dadurch drastisch gesteigert werden. Instead of the described in the embodiments mo- dularen system, a simple embodiment is mög ¬ Lich, in which on each level only a band having height-adjustable takeover and transfer edge is present. The control technology implementation of the proposed band buffer is carried out in a control cabinet, which vorzugswei ¬ se is located in the vicinity of the band buffer. The An ¬ drive technology of buffer strips and the drives for the HOE henverstellbarkeit the buffer strips are designed with servo motors. This makes it possible that product handling and flow rate can be optimally adjusted. The discharge capacity of the belt buffer depends on its fill level. This means that the higher the level, the faster the packaging machines are supplied with product. This actively counteracts the impending overfilling of the buffer at an early stage and avoids overflow and losses. The line efficiency can be increased drastically.

Claims

Patentansprüche claims
Bandpuffer mit mehreren übereinander angeordneten Pufferbändern, dadurch gekennzeichnet, dass die Übernahmekanten der Pufferbänder am Einlauf und die Übergabekanten der Pufferbänder am Auslauf des Bandpuffers hö¬ henverstellbar sind. Band buffer with a plurality of stacked buffer bands, characterized in that the transfer edge of the buffer bands at the inlet and the transfer edges of the buffer bands at the outlet of the band buffer are hö ¬ henverstellbar.
Bandpuffer nach Anspruch 1, dadurch gekennzeichnet, dass die Pufferbänder aus mehreren hintereinander angeordneten Bandmodulen bestehen und die jeweils am Einlauf und am Auslauf des Bandpuffers befindlichen Bänder höhenverstellbar sind. Band buffer according to claim 1, characterized in that the buffer bands consist of a plurality of successively arranged band modules and the respective bands located at the inlet and at the outlet of the band buffer are height adjustable.
. Bandpuffer nach Anspruch 1, dadurch gekennzeichnet dass die höhenverstellbaren Bänder am Einlauf ode Auslauf so weit anhebbar sind, dass Produktreihen aus geschleust werden. , Belt buffer according to claim 1, characterized in that the height-adjustable bands at the inlet or outlet are so far raised, that product rows are channeled out.
Bandpuffer nach Anspruch 1, dadurch gekennzeichnet, dass einlauf- oder auslaufseitig mehrere einlaufende oder auslaufende Bandebenen vorhanden sind, die mit den höhenverstellbaren Pufferbänder angefahren werden können . Band buffer according to claim 1, characterized in that inlet or outlet side a plurality of incoming or expiring band levels are present, which can be approached with the height-adjustable buffer bands.
Bandpuffer nach Anspruch 1, dadurch gekennzeichnet, dass die Höhenverstellbarkeit der einzelnen einlauf- oder auslaufseitigen Pufferbänder unabhängig erfolgt. Band buffer according to claim 1, characterized in that the height adjustment of the individual inlet or outlet side buffer bands is independent.
6. Bandpuffer nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass die Länge eines Pufferbands der Länge einer Formation entspricht. 6. Band buffer according to one of claims 1-5, characterized in that the length of a buffer band corresponds to the length of a formation.
7. Bandpuffer nach einem der Ansprüche 1-5, dadurch gekennzeichnet, dass die Länge der Pufferbänder einem ganzzahligen Vielfachen einer Produktformation entspricht . 7. Band buffer according to one of claims 1-5, characterized in that the length of the buffer bands corresponds to an integer multiple of a product formation.
8. Bandpuffer nach Anspruch 1, dadurch gekennzeichnet, dass die übereinander angeordneten Pufferbänder Kurvenbänder sind. 8. band buffer according to claim 1, characterized in that the stacked buffer bands are curved bands.
9. Bandpuffer nach Anspruch 1, dadurch gekennzeichnet, dass die Laufrichtung der Pufferbänder reversierbar ist . 9. tape buffer according to claim 1, characterized in that the running direction of the buffer belts is reversible.
EP16788069.9A 2015-11-11 2016-10-25 Belt buffer Pending EP3374299A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01638/15A CH711737A1 (en) 2015-11-11 2015-11-11 Band buffer.
PCT/EP2016/075634 WO2017080812A1 (en) 2015-11-11 2016-10-25 Belt buffer

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BR (1) BR112018009420A8 (en)
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WO (1) WO2017080812A1 (en)

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CH718123A1 (en) * 2020-12-02 2022-06-15 Rotzinger Ag Product conveyor device with belt buffer.
EP4324771A1 (en) * 2022-08-17 2024-02-21 Rotzinger AG Band buffer for a product conveying device

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WO2017080812A1 (en) 2017-05-18
US20180305137A1 (en) 2018-10-25
CH711737A1 (en) 2017-05-15
BR112018009420A2 (en) 2018-11-13
BR112018009420A8 (en) 2019-02-26

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