EP3802385B1 - Transport device - Google Patents

Transport device Download PDF

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Publication number
EP3802385B1
EP3802385B1 EP19730132.8A EP19730132A EP3802385B1 EP 3802385 B1 EP3802385 B1 EP 3802385B1 EP 19730132 A EP19730132 A EP 19730132A EP 3802385 B1 EP3802385 B1 EP 3802385B1
Authority
EP
European Patent Office
Prior art keywords
transport
transport means
speed
unit
tubular pieces
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.)
Active
Application number
EP19730132.8A
Other languages
German (de)
French (fr)
Other versions
EP3802385A1 (en
Inventor
Rüdiger Duwendag
Thomas Hawighorst
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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
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Publication of EP3802385A1 publication Critical patent/EP3802385A1/en
Application granted granted Critical
Publication of EP3802385B1 publication Critical patent/EP3802385B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/023—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between a pair of belts forming a transport nip
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/04—Feeding sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/002—Flexible containers made from sheets or blanks, e.g. from flattened tubes by joining superimposed sheets, e.g. with separate bottom sheets
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/20—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being perpendicular to the direction in which the sheets or blanks are fed
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/066—Feeding sheets or blanks from stacks from above a magazine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/28—Other properties of belts
    • B65H2404/285—Other properties of belts including readable marks, patterns, e.g. serving for control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Definitions

  • the present invention relates to a transport device, a system and a method for transporting hose sections.
  • the correct speed of the double-belt conveyor is of particular importance.
  • the reason that the correct processing depends on the position of the tube pieces or the exact positioning in the transport system. For example, a valve slip or a label must be inserted or applied to the correct place on the hose running past.
  • the upper and lower belts must run synchronously with one another in order to counteract any friction between the belts and thus increased wear.
  • WO 00/26862 A1 discloses a transport device and a method according to the preamble of claims 1 and 12.
  • the object of the invention is therefore to propose a device or a system for transporting pieces of tubing that can be used flexibly and in a variety of ways and at the same time ensures the simplest and most precise operation possible.
  • a transport device for transporting hose sections which has at least one upper and one lower transport means for guiding the hose sections, upper and lower pressure exertion units for exerting contact pressure on the transport means, and at least one upper and one lower drive unit for driving the transport means.
  • the drive takes place at a substantially constant speed in a transport direction (z), with the transport means being arranged at least partially between the upper and lower pressure application units.
  • the drive units can be controlled electrically and are arranged within the device in such a way that speed differences between the transport means can be automatically compensated for.
  • a significant advantage of the invention is that a speed difference between the means of transport that inevitably arises during a longer process does not have to be adjusted using a lengthy and cumbersome manual process, but can be carried out automatically by selectively controlling electrically controllable drive units. In this way, in particular, the time required to compensate for possible differences in speed can be reduced. This leads to significantly shorter downtimes in production and thus to significant cost advantages.
  • the present transport device for transporting tube pieces is used in particular for transporting paper tubes.
  • the device in question can also be used to transport plastic hoses, fabric hoses, rubber hoses and the like.
  • the transport means are preferably arranged opposite one another and running at least partially parallel to one another. This enables a targeted and controlled alignment of the hoses or pieces of hose to be transported during transport.
  • the arrangement of three, four or even more than four means of transport is also conceivable.
  • a substantially constant speed is to be understood as meaning a movement that is uniform within certain time segments. However, this does not mean that the speed cannot be changed or varied. Rather, an adjustment of the speed is provided according to the invention.
  • speed differences develop between the means of transport in question, especially during longer operating times. These speed differences lead to an asynchronous course of the transport device, which in turn leads to the positioning problems mentioned in the subsequent processing steps. In this case, the speed differences can result, for example, from measurement inaccuracies, uneven wear or uneven loads.
  • the compensation according to the invention of speed differences between the two means of transport is to be understood in the present case as a compensation or an adjustment of the speeds of the two means of transport, so that the speed difference is at least reduced, preferably eliminated.
  • the compensation of the speed differences of the means of transport should be done objectively by means of an automated control of the electrically controllable drive units.
  • electrical control is to be understood more broadly within the scope of the invention, so that electrical control is understood to mean all control options in which the control includes an exchange of electrical signals.
  • the transport means for guiding the tube pieces are advantageously designed as belts, in particular as flat belts.
  • flat belts promise a particularly simple design and high belt speeds.
  • very large forces can be transmitted when using flat belts.
  • V-belts, V-ribbed belts, synchronous belts or toothed belts can also be used.
  • the upper transport means is at least partially arranged directly on the lower transport means. Arranged directly is to be understood in the sense of directly adjacent or contacting. Such an arrangement makes it possible, in particular, to exert a higher contact pressure on the workpieces to be transported, so that optimal positioning of the workpieces is ensured.
  • the means of transport have indices that can be detected by sensors for determining the speed differences.
  • the indices can be formed in particular as shaping indices, for example with protruding and/or recessed areas such as teeth, flags or the like on the transport means.
  • the indices that can be detected by sensors can also be formed as electromagnetic indices, for example by incorporating magnets, iron cores or the like.
  • imprintable indices that can be detected by sensors are also conceivable for determining the speed differences.
  • the pressure-exerting units can be formed as rollers, in particular as resilient rollers.
  • Such a design of the pressure application units promises, in particular, a particularly uniform pressure distribution, which is particularly advantageous with regard to preventing any incorrect positioning.
  • the pressure application units can comprise magnetic and/or magnetizable elements. These can be incorporated into the at least one upper and one lower means of transport, so that the means of transport attract each other. The pressure distribution can thus be evened out even better.
  • the rollers can also be movably mounted and opposite rollers can be attracted by means of magnetic forces, in which magnetic and/or magnetizable elements are applied the roles work. Further elements are conceivable which attract one another, for example on the basis of electrostatic or electromagnetic interaction, in order to exert the required pressure.
  • the drive units are preferably designed as electromotive drive units, in particular as electronic direct drives.
  • each drive unit is preferably assigned to a means of transport within the scope of effective controllability.
  • the speed difference can be compensated for in a particularly simple manner by changing the setpoint speed of a means of transport.
  • more than two drive units can also be provided in the device according to the invention.
  • the drive units can advantageously be in the form of motors which, in addition to controlling the angular position, also allow the acceleration and rotational speed to be controlled.
  • the drive units can be in the form of servomotors.
  • servomotors enable high positioning accuracy, high dynamics, high speed accuracy, a large speed range, a compact and lightweight design and a short run-up time.
  • the drive units can also be in the form of stepping motors.
  • the subject matter of the invention is also a system for transporting hose sections with the features of the independent system claim.
  • the present system includes the transport device described above for transporting hose sections, a detection unit for acquiring data to determine a speed difference between the transport means and a processing unit for determining a speed difference between the transport means on the basis of the acquired data. Finally, the present system also has a control unit for compensating for the determined speed difference.
  • the detection unit has at least one sensor for acquiring data, by means of which a speed difference between the means of transport can be determined.
  • the sensor can, for example, record the current currently being tapped at the means of transport, a current moment of the means of transport or other specific data from which a speed difference between the means of transport can be determined.
  • the sensors of the detection unit could determine the data required to determine the speed differences with the aid of indices arranged on the means of transport that can be detected by sensors.
  • the indices that can be detected by sensors can be shaping indices, such as protruding and/or recessed areas, electromagnetic indices, such as magnets, iron cores or the like, or also printable indices that can be detected by sensors.
  • the detection unit has at least two sensors which are preferably arranged at different positions in the system, in particular at different positions on the device for transporting hose sections.
  • the arranged sensors are designed and positioned in such a way that they enable an exact position detection.
  • the sensors can preferably be in the form of light barriers or cameras and can be arranged at the entrance and exit of the transport device, so that a speed difference between the transport means can be determined by simply comparing the distance covered with the target speed of the transport means.
  • the detection unit determines the difference in speed between the transport means on the basis of position data of the tube pieces to be transported.
  • a piece of tubing can be detected, for example, at two positions, so that the speed difference of the means of transport can also be determined here in a simple manner by comparing the distance covered with the target speed of the respective means of transport.
  • This can be sensory detectable indices can be arranged, for example, on or in labels that are attached to the tube pieces by means of the transport device in question before the tube pieces are transported. In this way, an arrangement of indices on the means of transport is not necessary, so that the transport device according to the invention or the system according to the invention can also be easily integrated into already existing transport devices or systems.
  • the detection unit determines the speed difference between the means of transport on the basis of data from different, in particular a large number of different sensors a processing unit is averaged and/or weighted and/or subjected to other statistical data evaluation methods.
  • the system has at least one supply unit for supplying individual tube pieces and/or at least one discharge unit for discharging tube pieces transported within the transport device.
  • the system can be provided within the framework of a particularly fail-safe system that additional control and/or alignment units for the control and/or alignment of the transported tube pieces are arranged on the feed and/or discharge unit.
  • the system according to the invention also has at least one, preferably a plurality of processing stations, in particular with regard to a process that is as automated as possible for the production of tubular packaging from individual tubular pieces.
  • the system in question can have, in particular, a bottom laying unit and/or a valve slip unit and/or a bottom unit and/or a carrying strap unit as processing stations.
  • the processing stations can advantageously be arranged uniformly along the transport device, so that the tube pieces can be fed to the individual processing stations one after the other with the aid of the transport means.
  • the individual system components can preferably communicate wirelessly on a server or cloud basis and/or via the Internet.
  • the system can also be designed as a learning unit and change parameters based on collected data and empirical values and thus adapt the operation.
  • the invention also relates to a paper bottom layer, comprising a transport device for transporting tube pieces, in particular comprising a system for transporting tube pieces.
  • the present method for transporting tube pieces includes in particular the steps of guiding the tube pieces by means of an upper and a lower means of transport, exerting a contact pressure on the means of transport by means of pressure exertion units arranged above and below the means of transport, driving the means of transport with a substantially constant Speed by means of at least two electrically controllable drive units, the transport means being controlled by the electrically controllable drive units in such a way that speed differences between the two transport means are automatically compensated for.
  • the method also includes the acquisition of data for determining a speed difference between the means of transport by means of a detection unit.
  • the acquisition of data for determining a speed difference can be carried out in particular using various sensors which are preferably arranged at different positions of the system in question in accordance with the explanations regarding the transport device according to the invention.
  • the present method can preferably provide that a speed difference between the means of transport is determined by a processing unit on the basis of the recorded data and/or the determined speed difference is then compensated for by a control unit.
  • compensation can take place in particular in that the control unit, depending on the speed difference determined by the processing unit, sends a signal to one of the drive units, which then adjusts the drive speed accordingly.
  • the method in addition to compensating for speed differences between the means of transport, particularly when determining the difference in speed between the means of transport on the basis of position data of the means of transport to be transported hose pieces, also includes a correction of the positioning of hose pieces.
  • a position of a piece of tubing can be detected by means of a detection unit and compared with a target position.
  • a further correction value can then be determined from the deviation, which can be used to correct the positioning of the sacks in relation to the processing tools.
  • FIG 1 shows a schematic representation of the production of tubular bags.
  • individual hose pieces 6 made from a hose are transported one after the other by means of a transport device 2 and fed to individual processing stations 4 one after the other.
  • Various processing steps are then carried out in the individual processing stations 4 in order to form a finished tubular packaging 6 ′ from the tubular pieces 6 .
  • the first processing station 4 for example, the end of the hose is pulled open so that the open bottom now lies in one plane.
  • a first valve sheet is introduced into the open bottom of the piece of tubing 6.
  • another valve sheet is then introduced into the tube piece 6 in question.
  • areas of the floor are coated with glue or the like.
  • the bases are added and the layers provided with adhesive are glued together.
  • a bottom cover sheet is finally applied to the tension-bonded bottom of the now finished tubular packaging 6'.
  • the transport device 2 shows a transport device 2 for transporting tube pieces 6 from the prior art.
  • the transport device 2 here comprises an upper and a lower transport means 14, 14', on which the separated tube pieces 6 are guided along the transport direction z.
  • the tube pieces 6 are held between the transport means 14, 14' by the upper and lower pressure application units 16 and 16' exerting a contact pressure on the transport means 14 and 14'.
  • the transport means 14, 14' can preferably be formed as belts, in particular as flat belts.
  • the transport means 14, 14' are driven by the drive units 12, 12' at a substantially constant speed.
  • the transport means 14, 14' are held in their position via deflection rollers 18 arranged at various points of the transport device 2.
  • FIG. 3 shows a transport device 2 according to the invention according to a first embodiment.
  • the transport device according to the invention 2 electrically controllable drive units 12 and 12 'on such within the transport device 2 are arranged such that a compensation of speed differences between the two transport means 14, 14' can be automated.
  • the drive units 12, 12' are preferably formed as electromotive drive units, in particular as electromotive direct drives, for example as servomotors or the like. If an asynchronous course of the transport means 14 and 14' to one another or a speed difference between the transport means 14 and 14' is registered, the speed differences can be compensated for by changing the setpoint speed of a transport means 14 or 14'. In this way, the disadvantageous, tedious and non-automatable adjustment process known from the prior art is eliminated.
  • FIG. 4 shows a system 1 for transporting tube pieces 6 comprising a device for transporting tube pieces 6 according to a second exemplary embodiment.
  • the individual tube pieces 6 arranged on a stack 24 are conveyed from a storage unit 22 to a first feed unit 26 via a rotary feeder 20 .
  • the tube pieces 6 now reach the transport device 2, in which the tube pieces 6 are guided through the transport device 2 via the transport means 14 and 14' and fed to the individual processing stations 4.
  • the finished tubular packaging 6' is fed to the removal device 28.
  • the present system also has a detection unit 30.
  • the detection unit 30 comprises two sensors 32, which in the simplest case can be in the form of light barriers 33, cameras or the like.
  • the sensors 32 are now used to acquire data for determining the speeds of the transport means 14 and 14' with the aid of indices 40, 40' which can be detected by sensors and which are arranged on the transport means 14 and 14'.
  • the on the means of transport 14 and 14 'arranged indices 40 and 40' are detected both at the entrance and at the exit of the sensor 32, whereby the speed of the respective means of transport 14, 14 'in a simple manner - for example, via a Comparison of the target speed with the actual speed - can be clearly determined.
  • other or even just one sensor 32 can be arranged in the present system 1 for transporting hose sections 6, by means of which data for determining the speed differences of the transport means 14 and 14' can be recorded.
  • the measured values recorded by the sensor 32 or the sensors 32 are fed to the processing unit 34, which determines a speed difference between the transport means 14 and 14' from the measured values.
  • control unit 36 Depending on the determined speed difference, the speed difference can now be corrected or compensated via control unit 36, in that control unit 36 sends a corresponding signal to one of the drive units, which then corrects the drive speed of at least one means of transport and thus compensates for the speed difference between the means of transport compensated.
  • the components arranged within the system 1, in particular the control unit 36, the processing unit 34, the detection unit 30, the sensors 32 and the drive units 12, 12' are connected to one another via a communication and control line 38, so that smooth communication and Control between the devices is guaranteed.
  • the individual components of the system 1 in question can also be connected to one another wirelessly via Bluetooth, NFC, WLAN or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Conveyors (AREA)

Description

Die vorliegende Erfindung betrifft eine Transportvorrichtung, ein System und ein Verfahren zum Transport von Schlauchstücken.The present invention relates to a transport device, a system and a method for transporting hose sections.

Zur Herstellung von Schlauchverpackungen, insbesondere zur Herstellung der Böden von Schlauchverpackungen werden heute vielfach so genannte Papierbodenleger eingesetzt, in denen Papierschlauchstücke mit einem entsprechenden Boden versehen werden. Hierbei ist es bekannt, in Papierbodenlegern zum Transport der Schlauchstücke Doppelbandförderer einzusetzen. Solche Doppelbandförderer bestehen aus jeweils zwei aufeinander laufenden Flachriemen, zwischen denen die vereinzelten Schlauchstücke geführt und einzelnen Verarbeitungsstationen zugeführt werden. Die ausreichende Haftreibung wird hierbei durch federnde Rollen erreicht, die einen Anpressdruck auf die aufeinander laufenden Flachriemen ausüben. Auf diese Weise können die Schlauchstücke in korrekter Ausrichtung entlang der einzelnen Verarbeitungsstationen transportiert werden.For the production of tubular packaging, in particular for the production of the bottoms of tubular packaging, so-called paper bottom layers are often used today, in which pieces of paper tube are provided with a corresponding bottom. Here, it is known to use double belt conveyors in paper bottom layers for transporting the tube pieces. Such double-belt conveyors each consist of two flat belts running on top of one another, between which the individual tube pieces are guided and fed to individual processing stations. Sufficient static friction is achieved here by resilient rollers that apply contact pressure exert on the flat belts running on top of each other. In this way, the tube pieces can be transported in the correct orientation along the individual processing stations.

Insbesondere der korrekten Geschwindigkeit der Doppelbandförderer kommt hierbei eine besondere Bedeutung zu. Zum einen, aus dem Grund, da von der Position der Schlauchstücke bzw. der exakten Positionierung im Transportsystem die korrekte Verarbeitung abhängt. So muss zum Beispiel ein Ventilzettel oder ein Etikett an der richtigen Stelle des vorbeilaufenden Schlauches eingebracht oder aufgetragen werden. Zum anderen müssen Ober- und Unterriemen synchron zueinander verlaufen, um etwaige Reibung zwischen den Riemen und damit einem erhöhten Verschleiß entgegenzuwirken.In particular, the correct speed of the double-belt conveyor is of particular importance. On the one hand, for the reason that the correct processing depends on the position of the tube pieces or the exact positioning in the transport system. For example, a valve slip or a label must be inserted or applied to the correct place on the hose running past. On the other hand, the upper and lower belts must run synchronously with one another in order to counteract any friction between the belts and thus increased wear.

Nach dem Stand der Technik wird diese Aufgabe gelöst, indem die Geschwindigkeit der Transportriemen durch eine gezielte Anpassung des Durchmessers der Antriebsräder - mittels sogenannter Spreizscheiben - erfolgt. Nachteilig an dieser Lösung ist der langwierige und nicht zu automatisierende Einstellungsvorgang beim Anpassen der Spreizscheiben. Ebenfalls bekannt ist der Einsatz von formschlüssigen Zugmitteln, wie beispielsweise Zahnriemen oder dergleichen. Hier kommt es aber aufgrund möglicher Teilungsfehler zu Abweichungen, die dann anschließend nicht durch eine Durchmesseranpassung der Antriebsräder kompensiert werden können.According to the state of the art, this problem is solved by the speed of the transport belts being adjusted by a targeted adjustment of the diameter of the drive wheels—by means of so-called spreader disks. A disadvantage of this solution is the tedious and non-automated adjustment process when adjusting the spreader disks. Also known is the use of form-fitting traction devices, such as toothed belts or the like. Here, however, there are deviations due to possible pitch errors, which cannot then be compensated for by adjusting the diameter of the drive wheels.

WO 00/26862 A1 offenbart eine Transportvorrichtung und ein Verfahren gemäß dem Oberbegriff der Ansprüche 1 und 12. WO 00/26862 A1 discloses a transport device and a method according to the preamble of claims 1 and 12.

Aufgabe der Erfindung ist es daher, eine Vorrichtung bzw. ein System zum Transport von Schlauchstücken vorzuschlagen, das flexibel und vielseitig einsetzbar ist und gleichzeitig einen möglichst einfachen und genauen Betrieb gewährleistet.The object of the invention is therefore to propose a device or a system for transporting pieces of tubing that can be used flexibly and in a variety of ways and at the same time ensures the simplest and most precise operation possible.

Die voranstehende Aufgabe wird gelöst durch eine Vorrichtung mit den Merkmalen des unabhängigen Vorrichtungsanspruchs, ein System mit den Merkmalen des unabhängigen Systemanspruchs sowie durch ein Verfahren mit den Merkmalen des unabhängigen Verfahrensanspruchs. Weitere Merkmale und Details der Erfindung ergeben sich aus den jeweiligen Unteransprüchen, der Beschreibung und den Zeichnungen. Dabei gelten Merkmale und Details, die im Zusammenhang mit der erfindungsgemäßen Vorrichtung beschrieben sind, selbstverständlich auch im Zusammenhang mit dem erfindungsgemäßen System sowie dem erfindungsgemäßen Verfahren, und jeweils umgekehrt, sodass bezüglich der Offenbarung zu den einzelnen Erfindungsaspekten stets wechselseitig Bezug genommen wird bzw. werden kann.The above object is achieved by a device having the features of the independent device claim, a system having the features of the independent system claim and by a method having the features of the independent method claim. Further features and details of the invention result from the respective dependent claims, the description and the drawings. Features and details that are described in connection with the device according to the invention naturally also apply in connection with the device according to the invention System and the method according to the invention, and vice versa, so that the disclosure of the individual aspects of the invention is always mutually referred to or can be referred to.

Erfindungsgemäß ist eine Transportvorrichtung zum Transport von Schlauchstücken vorgesehen, die zumindest ein oberes und ein unteres Transportmittel zur Führung der Schlauchstücke, obere und untere Druckausübungseinheiten zur Ausübung eines Anpressdrucks auf die Transportmittel sowie zumindest eine obere und eine untere Antriebseinheit zum Antrieb der Transportmittel vorsieht. Der Antrieb erfolgt hierbei gegenständlich mit einer im Wesentlichen konstanten Geschwindigkeit in eine Transportrichtung (z), wobei die Transportmittel zumindest teilweise zwischen den oberen und unteren Druckausübungseinheiten angeordnet sind. Schließlich ist erfindungsgemäß ferner vorgesehen, dass die Antriebseinheiten elektrisch ansteuerbar und derart innerhalb der Vorrichtung angeordnet sind, dass Geschwindigkeitsdifferenzen zwischen den Transportmitteln automatisch kompensierbar sind.According to the invention, a transport device for transporting hose sections is provided, which has at least one upper and one lower transport means for guiding the hose sections, upper and lower pressure exertion units for exerting contact pressure on the transport means, and at least one upper and one lower drive unit for driving the transport means. In this case, the drive takes place at a substantially constant speed in a transport direction (z), with the transport means being arranged at least partially between the upper and lower pressure application units. Finally, according to the invention, it is also provided that the drive units can be controlled electrically and are arranged within the device in such a way that speed differences between the transport means can be automatically compensated for.

Ein wesentlicher Vorteil der Erfindung ist, dass eine sich während eines längeren Prozesses zwangsläufig ergebende Geschwindigkeitsdifferenz zwischen den Transportmitteln nicht über ein langwieriges und umständliches manuelles Verfahren angeglichen werden muss, sondern automatisch durch eine gezielte Ansteuerung elektrisch ansteuerbarer Antriebseinheiten vorgenommen werden kann. Hierdurch kann insbesondere die Zeitdauer zur Kompensation möglicher Geschwindigkeitsdifferenzen reduziert werden. Dies führt zu deutlich kürzeren Ausfallzeiten der Produktion und somit zu erheblichen Kostenvorteilen.A significant advantage of the invention is that a speed difference between the means of transport that inevitably arises during a longer process does not have to be adjusted using a lengthy and cumbersome manual process, but can be carried out automatically by selectively controlling electrically controllable drive units. In this way, in particular, the time required to compensate for possible differences in speed can be reduced. This leads to significantly shorter downtimes in production and thus to significant cost advantages.

Die gegenständliche Transportvorrichtung zum Transport von Schlauchstücken dient insbesondere der Beförderung von Papierschläuchen. Ebenso kann die gegenständliche Vorrichtung auch zur Beförderung von Plastikschläuchen, Stoffschläuchen, Gummischläuchen und dergleichen eingesetzt werden. Die Transportmittel sind hierbei vorzugsweise einander gegenüberliegend und zumindest teilweise parallel zueinander verlaufend angeordnet. Dies ermöglicht eine gezielte und kontrollierte Ausrichtung der zu transportierenden Schläuche bzw. Schlauchstücke während des Transports. Alternativ zu einer Anordnung von lediglich zwei Transportmitteln ist gegenständlich auch die Anordnung von drei, vier oder auch mehr als vier Transportmitteln denkbar.The present transport device for transporting tube pieces is used in particular for transporting paper tubes. The device in question can also be used to transport plastic hoses, fabric hoses, rubber hoses and the like. The transport means are preferably arranged opposite one another and running at least partially parallel to one another. This enables a targeted and controlled alignment of the hoses or pieces of hose to be transported during transport. As an alternative to an arrangement of only two means of transport, the arrangement of three, four or even more than four means of transport is also conceivable.

Unter einer im Wesentlichen konstanten Geschwindigkeit ist im Rahmen der Erfindung eine innerhalb bestimmter Zeitabschnitte gleichförmige Bewegung zu verstehen. Dies heißt jedoch nicht, dass die Geschwindigkeit nicht geändert bzw. variiert werden kann. Vielmehr ist eine Anpassung der Geschwindigkeit erfindungsgemäß gerade vorgesehen.Within the scope of the invention, a substantially constant speed is to be understood as meaning a movement that is uniform within certain time segments. However, this does not mean that the speed cannot be changed or varied. Rather, an adjustment of the speed is provided according to the invention.

Es wird angenommen, dass sich zwischen den gegenständlichen Transportmitteln, insbesondere bei längeren Betriebszeiten, Geschwindigkeitsdifferenzen ausbilden. Diese Geschwindigkeitsdifferenzen führen zu einem asynchronen Verlauf der Transportvorrichtung, was bei den nachfolgenden Verarbeitungsschritten wiederum zu den genannten Positionierungsproblemen führt. Hierbei können die Geschwindigkeitsdifferenzen beispielsweise aus Messungenauigkeiten, ungleichmäßigen Abnutzungen oder ungleichmäßigen Belastungen resultieren.It is assumed that speed differences develop between the means of transport in question, especially during longer operating times. These speed differences lead to an asynchronous course of the transport device, which in turn leads to the positioning problems mentioned in the subsequent processing steps. In this case, the speed differences can result, for example, from measurement inaccuracies, uneven wear or uneven loads.

Unter der erfindungsgemäßen Kompensation von Geschwindigkeitsdifferenzen zwischen den beiden Transportmitteln ist vorliegend ein Ausgleich bzw. eine Angleichung der Geschwindigkeiten der beiden Transportmittel zu verstehen, sodass die Geschwindigkeitsdifferenz zumindest reduziert, vorzugsweise eliminiert wird. Die Kompensation der Geschwindigkeitsdifferenzen der Transportmittel soll gegenständlich anhand einer automatisierten Ansteuerung der elektrisch ansteuerbaren Antriebseinheiten erfolgen. Hierbei ist der Begriff der elektrischen Ansteuerung im Rahmen der Erfindung breiter zu verstehen, sodass unter einer elektrischen Ansteuerung alle Steuerungsmöglichkeiten zu verstehen sind, in denen die Steuerung einen Austausch von elektrischen Signalen umfasst.The compensation according to the invention of speed differences between the two means of transport is to be understood in the present case as a compensation or an adjustment of the speeds of the two means of transport, so that the speed difference is at least reduced, preferably eliminated. The compensation of the speed differences of the means of transport should be done objectively by means of an automated control of the electrically controllable drive units. In this context, the term electrical control is to be understood more broadly within the scope of the invention, so that electrical control is understood to mean all control options in which the control includes an exchange of electrical signals.

Im Hinblick auf einen möglichst einfachen Aufbau der erfindungsgemäßen Transportvorrichtung sind die Transportmittel zur Führung der Schlauchstücke vorteilhafterweise als Riemen, insbesondere als Flachriemen gebildet. Flachriemen versprechen hierbei insbesondere eine besonders einfache Bauart und hohe Riemengeschwindigkeiten. Außerdem sind bei der Verwendung von Flachriemen sehr große Kräfte übertragbar. Alternativ zu der Verwendung von Flachriemen können allerdings auch Keilriemen, Keilrippenriemen, Synchronriemen oder auch Zahnriemen verwendet werden.With regard to the simplest possible construction of the transport device according to the invention, the transport means for guiding the tube pieces are advantageously designed as belts, in particular as flat belts. In particular, flat belts promise a particularly simple design and high belt speeds. In addition, very large forces can be transmitted when using flat belts. As an alternative to using flat belts, however, V-belts, V-ribbed belts, synchronous belts or toothed belts can also be used.

Für eine besonders gute Haftreibung zwischen den Transportmitteln und den zu transportierenden Schlauchstücken kann im Rahmen der Erfindung ferner vorteilhafterweise vorgesehen sein, dass das obere Transportmittel zumindest teilweise unmittelbar auf dem unteren Transportmittel angeordnet ist. Unmittelbar angeordnet ist hierbei im Sinne von direkt anliegend bzw. kontaktierend zu verstehen. Durch eine derartige Anordnung ist es insbesondere möglich, einen höheren Anpressdruck auf die zu transportierenden Werkstücke auszuüben, sodass eine optimale Positionierung der Werkstücke gewährleistet ist.For a particularly good static friction between the transport means and the hose pieces to be transported, it can also advantageously be provided within the scope of the invention that the upper transport means is at least partially arranged directly on the lower transport means. Arranged directly is to be understood in the sense of directly adjacent or contacting. Such an arrangement makes it possible, in particular, to exert a higher contact pressure on the workpieces to be transported, so that optimal positioning of the workpieces is ensured.

Im Rahmen einer besonders einfachen Erfassung und Bestimmung der Geschwindigkeitsdifferenzen zwischen den Transportmitteln, kann erfindungsgemäß ferner vorgesehen sein, dass die Transportmittel sensorisch erfassbare Indices zur Bestimmung der Geschwindigkeitsdifferenzen aufweisen. Hierbei können die Indices insbesondere als formgebende Indices, beispielsweise mit an den Transportmitteln hervorstehenden und/oder ausgenommenen Bereichen, wie Zähnen, Fähnchen oder dergleichen gebildet sein. Alternativ oder kumulativ können die sensorisch erfassbaren Indices auch als elektromagnetische Indices gebildet sein, beispielsweise mittels der Einarbeitung von Magneten, Eisenkernen oder ähnlichem. Ferner sind auch aufdruckbare sensorisch erfassbare Indices zur Bestimmung der Geschwindigkeitsdifferenzen denkbar.Within the framework of a particularly simple detection and determination of the speed differences between the means of transport, it can also be provided according to the invention that the means of transport have indices that can be detected by sensors for determining the speed differences. In this case, the indices can be formed in particular as shaping indices, for example with protruding and/or recessed areas such as teeth, flags or the like on the transport means. Alternatively or cumulatively, the indices that can be detected by sensors can also be formed as electromagnetic indices, for example by incorporating magnets, iron cores or the like. Furthermore, imprintable indices that can be detected by sensors are also conceivable for determining the speed differences.

Im Hinblick auf einen möglichst exakt positionierten Transport der zu transportierenden Schlauchstücke kann es erfindungsgemäß ebenfalls vorteilhaft sein, dass die Druckausübungseinheiten als Rollen, insbesondere als federnde Rollen gebildet sind. Eine derartige Ausbildung der Druckausübungseinheiten verspricht insbesondere eine besonders gleichmäßige Druckverteilung, was vor allem im Hinblick auf die Vorbeugung etwaiger Fehlpositionierungen vorteilhaft ist.With regard to transporting the hose pieces to be transported that is positioned as precisely as possible, it can likewise be advantageous according to the invention for the pressure-exerting units to be formed as rollers, in particular as resilient rollers. Such a design of the pressure application units promises, in particular, a particularly uniform pressure distribution, which is particularly advantageous with regard to preventing any incorrect positioning.

Alternativ oder zusätzlich können die Druckausübungseinheiten magnetische und/oder magnetisierbare Elemente umfassen. Diese können in das zumindest eine obere und in das eine untere Transportmittel eingearbeitet sein, so dass sich die Transportmittel gegenseitig anziehen. Damit kann die Druckverteilung noch besser vergleichmäßigt werden. Auch die Rollen können beweglich gelagert sein und sich gegenüber liegende Rollen mittels magnetischer Kräfte anziehen, in dem magnetische und/oder magnetisierbare Elemente auf die Rollen wirken. Weitere Elemente sind denkbar, die sich beispielsweise auf Basis elektrostatischer oder elektromagnetischer Wechselwirkung gegenseitig anziehen, um so den erforderlichen Druck auszuüben.Alternatively or additionally, the pressure application units can comprise magnetic and/or magnetizable elements. These can be incorporated into the at least one upper and one lower means of transport, so that the means of transport attract each other. The pressure distribution can thus be evened out even better. The rollers can also be movably mounted and opposite rollers can be attracted by means of magnetic forces, in which magnetic and/or magnetizable elements are applied the roles work. Further elements are conceivable which attract one another, for example on the basis of electrostatic or electromagnetic interaction, in order to exert the required pressure.

Um eine möglichst einfache und gleichzeitig effektive elektrische Ansteuerbarkeit der erfindungsgemäßen Antriebseinheiten zu gewährleisten, sind die Antriebseinheiten vorzugsweise als elektromotorische Antriebseinheiten, insbesondere als elektronische Direktantriebe gebildet. Hierbei ist im Rahmen einer effektiven Ansteuerbarkeit vorzugsweise jede Antriebseinheit einem Transportmittel zugeordnet. Mittels der erfindungsgemäßen Antriebseinheiten kann eine Kompensation der Geschwindigkeitsdifferenz in besonders einfacher Weise durch Veränderung der Sollgeschwindigkeit eines Transportmittels erfolgen. Prinzipiell können auch mehr als zwei Antriebseinheiten in der erfindungsgemäßen Vorrichtung vorgesehen sein. Im Hinblick auf eine besonders exakte Angleichung bzw. Kompensation der Geschwindigkeitsdifferenzen der Transportmittel können die Antriebseinheiten vorteilhafterweise als Motoren gebildet sein, die neben einer Winkelpositionskontrolle auch eine Kontrolle der Beschleunigung und der Drehgeschwindigkeit erlauben. Insbesondere können die Antriebseinheiten hierbei als Servomotoren gebildet sein. Servomotoren ermöglichen hierbei unter anderem eine hohe Positionierungsgenauigkeit, eine hohe Dynamik, eine hohe Drehzahlgenauigkeit, einen großen Drehzahlbereich, eine kompakte und leichte Bauweise sowie eine kurze Hochlaufzeit. Im Rahmen einer einfachen und kostengünstigen Ausführung der erfindungsgemäßen Transportvorrichtung können die Antriebseinheiten dagegen auch als Schrittmotoren gebildet sein.In order to ensure that the drive units according to the invention can be controlled electrically as simply and at the same time as effectively as possible, the drive units are preferably designed as electromotive drive units, in particular as electronic direct drives. In this case, each drive unit is preferably assigned to a means of transport within the scope of effective controllability. By means of the drive units according to the invention, the speed difference can be compensated for in a particularly simple manner by changing the setpoint speed of a means of transport. In principle, more than two drive units can also be provided in the device according to the invention. With a view to a particularly precise adjustment or compensation of the speed differences of the transport means, the drive units can advantageously be in the form of motors which, in addition to controlling the angular position, also allow the acceleration and rotational speed to be controlled. In particular, the drive units can be in the form of servomotors. Among other things, servomotors enable high positioning accuracy, high dynamics, high speed accuracy, a large speed range, a compact and lightweight design and a short run-up time. In contrast, within the framework of a simple and cost-effective embodiment of the transport device according to the invention, the drive units can also be in the form of stepping motors.

Ebenfalls Gegenstand der Erfindung ist ein System zum Transport von Schlauchstücken mit den Merkmalen des unabhängigen Systemanspruchs. Hierbei umfasst das gegenständliche System die voranstehend beschriebene Transportvorrichtung zum Transport von Schlauchstücken, eine Detektionseinheit zur Erfassung von Daten zur Bestimmung einer Geschwindigkeitsdifferenz zwischen den Transportmitteln und eine Verarbeitungseinheit zur Bestimmung einer Geschwindigkeitsdifferenz zwischen den Transportmitteln auf Basis der erfassten Daten. Schließlich weist das gegenständliche System auch noch eine Steuereinheit zur Kompensation der bestimmten Geschwindigkeitsdifferenz auf.The subject matter of the invention is also a system for transporting hose sections with the features of the independent system claim. The present system includes the transport device described above for transporting hose sections, a detection unit for acquiring data to determine a speed difference between the transport means and a processing unit for determining a speed difference between the transport means on the basis of the acquired data. Finally, the present system also has a control unit for compensating for the determined speed difference.

Bevorzugt kann im Rahmen der Erfindung vorgesehen sein, dass die Detektionseinheit zumindest einen Sensor zur Erfassung von Daten aufweist, mittels denen eine Geschwindigkeitsdifferenz zwischen den Transportmitteln bestimmt werden kann. Der Sensor kann beispielsweise den aktuell an den Transportmitteln abgegriffen Strom, ein aktuelles Moment der Transportmittel oder andere spezifische Daten erfassen aus denen eine Geschwindigkeitsdifferenz zwischen den Transportmitteln ermittelt werden kann.It can preferably be provided within the scope of the invention that the detection unit has at least one sensor for acquiring data, by means of which a speed difference between the means of transport can be determined. The sensor can, for example, record the current currently being tapped at the means of transport, a current moment of the means of transport or other specific data from which a speed difference between the means of transport can be determined.

Alternativ oder kumulativ könnten die Sensoren der Detektionseinheit die zur Bestimmung der Geschwindigkeitsdifferenzen benötigten Daten mit Hilfe von auf den Transportmitteln angeordneten sensorisch erfassbaren Indices ermitteln. Hierbei kann es sich bei den sensorisch erfassbaren Indices - wie bereits voranstehend erläutert - um formgebende Indices, wie beispielsweise hervorstehende und/oder ausgenommenen Bereiche, um elektromagnetische Indices, wie beispielsweise Magneten, Eisenkerne oder dergleichen oder auch um aufdruckbare sensorisch erfassbare Indices handeln.Alternatively or cumulatively, the sensors of the detection unit could determine the data required to determine the speed differences with the aid of indices arranged on the means of transport that can be detected by sensors. As already explained above, the indices that can be detected by sensors can be shaping indices, such as protruding and/or recessed areas, electromagnetic indices, such as magnets, iron cores or the like, or also printable indices that can be detected by sensors.

Im Rahmen einer besonders einfachen und ausfallsicheren Variante des erfindungsgemäßen Systems kann ferner vorgesehen sein, dass die Detektionseinheit zumindest zwei Sensoren aufweist, die vorzugsweise an unterschiedlichen Positionen des Systems, insbesondere an unterschiedlichen Positionen der Vorrichtung zum Transport von Schlauchstücken angeordnet sind. Vorteilhafterweise sind die angeordneten Sensoren hierbei derart ausgebildet und positioniert, dass sie eine exakte Positionserkennung ermöglichen. Hierbei können die Sensoren vorzugsweise als Lichtschranken bzw. Kameras gebildet sein und am Eingang und Ausgang der Transportvorrichtung angeordnet sein, sodass über einen einfachen Vergleich der zurückgelegten Wegstrecke mit der Sollgeschwindigkeit der Transportmittel eine Geschwindigkeitsdifferenz zwischen den Transportmitteln ermittelt werden kann.As part of a particularly simple and fail-safe variant of the system according to the invention, it can also be provided that the detection unit has at least two sensors which are preferably arranged at different positions in the system, in particular at different positions on the device for transporting hose sections. Advantageously, the arranged sensors are designed and positioned in such a way that they enable an exact position detection. The sensors can preferably be in the form of light barriers or cameras and can be arranged at the entrance and exit of the transport device, so that a speed difference between the transport means can be determined by simply comparing the distance covered with the target speed of the transport means.

Ferner ist es ebenfalls denkbar, dass die Detektionseinheit die Geschwindigkeitsdifferenz zwischen den Transportmitteln auf Basis von Positionsdaten der zu transportierenden Schlauchstücke ermittelt. Hierbei kann ein Schlauchstück beispielsweise an zwei Positionen erfasst werden, sodass die Geschwindigkeitsdifferenz der Transportmittel auch hier über einen Vergleich der zurückgelegten Wegstrecke mit der Sollgeschwindigkeit des jeweiligen Transportmittels auf einfache Weise bestimmt werden kann. Hierbei können sensorisch erfassbare Indices beispielsweise an oder in Etiketten angeordnet sein, die vor dem Transport der Schlauchstücke mittels der gegenständlichen Transportvorrichtung an den Schlauchstücken angebracht werden. Auf diese Weise ist eine Anordnung von Indices an den Transportmitteln nicht notwendig, so dass auch eine einfache Integration der erfindungsgemäßen Transportvorrichtung bzw. des erfindungsgemäßen Systems in bereits bestehende Transportvorrichtungen bzw. Systeme erfolgen kann.Furthermore, it is also conceivable that the detection unit determines the difference in speed between the transport means on the basis of position data of the tube pieces to be transported. Here, a piece of tubing can be detected, for example, at two positions, so that the speed difference of the means of transport can also be determined here in a simple manner by comparing the distance covered with the target speed of the respective means of transport. This can be sensory detectable indices can be arranged, for example, on or in labels that are attached to the tube pieces by means of the transport device in question before the tube pieces are transported. In this way, an arrangement of indices on the means of transport is not necessary, so that the transport device according to the invention or the system according to the invention can also be easily integrated into already existing transport devices or systems.

Im Hinblick auf eine besonders aussagekräftige Bestimmung von Geschwindigkeitsdifferenzen zwischen den Transportmitteln, kann erfindungsgemäß ebenso vorgesehen sein, dass die Detektionseinheit die Geschwindigkeitsdifferenz zwischen den Transportmitteln auf Basis von Daten verschiedener, insbesondere einer Vielzahl von verschiedenen Sensoren ermittelt, wobei die Daten vor einer Bestimmung einer Geschwindigkeit mittels einer Verarbeitungseinheit gemittelt und/oder gewichtet und/oder anderen statistischen Datenauswertungsmethoden unterworfen wird.With regard to a particularly meaningful determination of speed differences between the means of transport, it can also be provided according to the invention that the detection unit determines the speed difference between the means of transport on the basis of data from different, in particular a large number of different sensors a processing unit is averaged and/or weighted and/or subjected to other statistical data evaluation methods.

Im Hinblick auf ein möglichst flexibles Transportsystem kann erfindungsgemäß ferner vorgesehen sein, dass das System zumindest eine Zufuhreinheit zur Zuführung von vereinzelten Schlauchstücken und/oder zumindest eine Abfuhreinheit zur Abführung von innerhalb der Transportvorrichtung transportierten Schlauchstücken aufweist. Hierbei kann es im Rahmen eines besonders ausfallsicheren Systems vorgesehen sein, dass an der Zu-und/oder Abführeinheit noch zusätzliche Kontroll- und/oder Ausrichteeinheiten zur Kontrolle und/oder Ausrichtung der transportierten Schlauchstücke angeordnet sind.With regard to a transport system that is as flexible as possible, it can also be provided according to the invention that the system has at least one supply unit for supplying individual tube pieces and/or at least one discharge unit for discharging tube pieces transported within the transport device. In this context, it can be provided within the framework of a particularly fail-safe system that additional control and/or alignment units for the control and/or alignment of the transported tube pieces are arranged on the feed and/or discharge unit.

Vorteilhafterweise weist das erfindungsgemäße System zudem, insbesondere im Hinblick auf einen möglichst automatisierten Prozess zur Herstellung von Schlauchverpackungen aus vereinzelten Schlauchstücken, zumindest eine, vorzugsweise mehrere Verarbeitungsstationen auf. Als Verarbeitungsstationen kann das gegenständliche System hierbei insbesondere eine Bodenlegeeinheit und/oder eine Ventilzetteleinheit und/oder eine Bodeneinheit und oder/eine Trageriemeneinheit aufweisen. Die Verarbeitungsstationen können hierbei vorteilhafterweise gleichmäßig entlang der Transportvorrichtung angeordnet sein, sodass die Schlauchstücke den einzelnen Verarbeitungsstationen mit Hilfe der Transportmittel nacheinander zugeführt werden können.Advantageously, the system according to the invention also has at least one, preferably a plurality of processing stations, in particular with regard to a process that is as automated as possible for the production of tubular packaging from individual tubular pieces. The system in question can have, in particular, a bottom laying unit and/or a valve slip unit and/or a bottom unit and/or a carrying strap unit as processing stations. In this case, the processing stations can advantageously be arranged uniformly along the transport device, so that the tube pieces can be fed to the individual processing stations one after the other with the aid of the transport means.

Um eine besonders flexible, unkomplizierte und effiziente Kommunikation der einzelnen Systemeinheiten zu gewährleisten, können die einzelnen Systemkomponenten vorzugsweise drahtlos auf Server- bzw. Cloud-Basis und/oder via Internet kommunizieren. Für einen energieeffizienten Betrieb kann das System ferner als lernende Einheit gebildet sein und anhand von gesammelten Daten und Erfahrungswerten Parameter verändern und so den Betrieb anpassen.In order to ensure particularly flexible, uncomplicated and efficient communication between the individual system units, the individual system components can preferably communicate wirelessly on a server or cloud basis and/or via the Internet. For energy-efficient operation, the system can also be designed as a learning unit and change parameters based on collected data and empirical values and thus adapt the operation.

Ebenfalls Gegenstand der Erfindung ist ein Papierbodenleger, umfassend eine Transportvorrichtung zum Transport von Schlauchstücken, insbesondere umfassend ein System zum Transport von Schlauchstücken.The invention also relates to a paper bottom layer, comprising a transport device for transporting tube pieces, in particular comprising a system for transporting tube pieces.

Des Weiteren wird vorliegend auch ein Verfahren zum Transport von Schlauchstücken mit den Merkmalen des unabhängigen Verfahrensanspruchs unter Schutz gestellt. Hierbei umfasst das gegenständliche Verfahren zum Transport von Schlauchstücken insbesondere die Schritte eines Führens der Schlauchstücke mittels eines oberen und eines unteren Transportmittels, eines Ausübens eines Anpressdrucks auf die Transportmittel mittels oberhalb und unterhalb von den Transportmitteln angeordneten Druckausübungseinheiten, eines Antreibens der Transportmittel mit einer im wesentlichen konstanten Geschwindigkeit mittels zumindest zweier elektrisch ansteuerbare Antriebseinheiten, wobei die Transportmittel von den elektrisch ansteuerbaren Antriebseinheiten derart angesteuert werden, dass Geschwindigkeitsdifferenzen zwischen den beiden Transportmitteln automatisch kompensiert werden. Damit bringt das erfindungsgemäße Verfahren die gleichen Vorteile mit sich, wie sie bereits ausführlich in Bezug auf die erfindungsgemäße Vorrichtung beschrieben worden sind.Furthermore, a method for transporting hose sections with the features of the independent method claim is also protected in the present case. In this case, the present method for transporting tube pieces includes in particular the steps of guiding the tube pieces by means of an upper and a lower means of transport, exerting a contact pressure on the means of transport by means of pressure exertion units arranged above and below the means of transport, driving the means of transport with a substantially constant Speed by means of at least two electrically controllable drive units, the transport means being controlled by the electrically controllable drive units in such a way that speed differences between the two transport means are automatically compensated for. The method according to the invention thus brings with it the same advantages as have already been described in detail in relation to the device according to the invention.

Im Hinblick auf eine effiziente Ausführung des gegenständlichen Verfahrens kann vorteilhafterweise vorgesehen sein, dass das Verfahren auch ein Erfassen von Daten zur Bestimmung einer Geschwindigkeitsdifferenz zwischen den Transportmitteln mittels einer Detektionseinheit umfasst. Das Erfassen von Daten zur Bestimmung einer Geschwindigkeitsdifferenz kann dabei insbesondere anhand von verschiedenen Sensoren erfolgen, die entsprechend den Ausführungen zur erfindungsgemäßen Transportvorrichtung vorzugsweise an unterschiedlichen Positionen des gegenständlichen Systems angeordnet sind.With regard to an efficient execution of the present method, it can advantageously be provided that the method also includes the acquisition of data for determining a speed difference between the means of transport by means of a detection unit. The acquisition of data for determining a speed difference can be carried out in particular using various sensors which are preferably arranged at different positions of the system in question in accordance with the explanations regarding the transport device according to the invention.

Hierbei kann das gegenständliche Verfahren vorzugsweise vorsehen, dass eine Geschwindigkeitsdifferenz zwischen den Transportmitteln mittels einer Verarbeitungseinheit auf Basis der erfassten Daten bestimmt wird und/oder anschließend eine Kompensation der bestimmten Geschwindigkeitsdifferenz mittels einer Steuerungseinheit erfolgt. Eine Kompensation kann hierbei insbesondere erfolgen, indem die Steuereinheit in Abhängigkeit der von der Verarbeitungseinheit bestimmten Geschwindigkeitsdifferenz ein Signal an eine der Antriebseinheiten sendet, die daraufhin die Antriebsgeschwindigkeit entsprechend angleicht.The present method can preferably provide that a speed difference between the means of transport is determined by a processing unit on the basis of the recorded data and/or the determined speed difference is then compensated for by a control unit. In this case, compensation can take place in particular in that the control unit, depending on the speed difference determined by the processing unit, sends a signal to one of the drive units, which then adjusts the drive speed accordingly.

Im Rahmen einer besonders exakten und einfach integrierbaren Methode zur Erfassung von Geschwindigkeitsdifferenzen zwischen den Transportmitteln kann gegenständlich ferner vorgesehen sein, dass das Verfahren neben einem Kompensieren von Geschwindigkeitsdifferenzen zwischen den Transportmitteln, insbesondere bei einer Ermittlung der Geschwindigkeitsdifferenz zwischen den Transportmitteln auf Basis von Positionsdaten der zu transportierenden Schlauchstücke, auch eine Korrektur der Positionierung von Schlauchstücken umfasst. Hierbei kann mittels einer Detektionseinheit beispielsweise eine Lage eines Schlauchstücks erfasst und mit einer Sollposition verglichen werden. Aus der Abweichung kann dann ein weiterer Korrekturwert ermittelt werden, der zur Korrektur der Positionierung der Säcke in Relation zu den bearbeitenden Werkzeugen verwendet werden kann.As part of a particularly precise and easily integrated method for detecting speed differences between the means of transport, it can also be provided that the method, in addition to compensating for speed differences between the means of transport, particularly when determining the difference in speed between the means of transport on the basis of position data of the means of transport to be transported hose pieces, also includes a correction of the positioning of hose pieces. In this case, for example, a position of a piece of tubing can be detected by means of a detection unit and compared with a target position. A further correction value can then be determined from the deviation, which can be used to correct the positioning of the sacks in relation to the processing tools.

Da eine derartige zusätzliche Korrektur nicht in jedem Fall lediglich immer vorteilhaft ist bzw. es sich nicht immer lohnt eine zusätzliche Korrektur der Positionierung von Schlauchstücken vorzunehmen (wenn beispielsweise nur ein Schlauchstück falsch positioniert ist), kann vorteilhafterweise vorgesehen sein, dass eine derartige zusätzliche Korrektur der Positionierung von Schlauchstücken in Abhängigkeit zumindest eines der folgenden Parameter folgt: die Höhe der Abweichung der Ist-Position von einer Soll-Position, die Gesamtzahl der durchzuführenden Produktionsschritte, der aktuelle Produktionsschritt des betreffenden Schlauchstücks innerhalb des gesamten Produktionsprozesses, der geforderte Qualitätsstandard, die Kosten des Produktes, die Größe des Produktionsansatzes oder die Geschwindigkeit des Prozesses, insbesondere die aktuelle Geschwindigkeit der Transportmittel.Since such an additional correction is not always advantageous in every case or it is not always worthwhile to carry out an additional correction of the positioning of hose sections (if, for example, only one hose section is incorrectly positioned), it can advantageously be provided that such an additional correction of the Positioning of hose sections depending on at least one of the following parameters follows: the amount of deviation of the actual position from a target position, the total number of production steps to be carried out, the current production step of the hose section in question within the entire production process, the required quality standard, the costs of the product, the size of the production batch or the speed of the process, in particular the current speed of the means of transport.

Weitere Vorteile Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung im Einzelnen beschrieben sind. Dabei können die in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungsgemäß wesentlich sein.Further advantages Features and details of the invention result from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description can each be essential according to the invention individually or in any combination.

In den Figuren zeigen:

Fig. 1
eine schematische Darstellung der Herstellung von Schlauchbeuteln,
Fig. 2
eine Transportvorrichtung zum Transport von Schlauchstücken gemäß dem Stand der Technik,
Fig. 3
eine erfindungsgemäße Transportvorrichtung zum Transport von Schlauchstücken gemäß einem ersten Ausführungsbeispiel,
Fig. 4
ein System zum Transport von Schlauchstücken umfassend eine Transportvorrichtung zum Transport von Schlauchstücken gemäß einem zweiten Ausführungsbeispiel.
In the figures show:
1
a schematic representation of the production of tubular bags,
2
a transport device for transporting hose pieces according to the prior art,
3
a transport device according to the invention for transporting hose pieces according to a first embodiment,
4
a system for transporting pieces of tubing comprising a transport device for transporting pieces of tubing according to a second embodiment.

Figur 1 zeigt eine schematische Darstellung der Herstellung von Schlauchbeuteln. Hierbei werden aus einem Schlauch gefertigte, vereinzelte Schlauchstücke 6 hintereinander mittels einer Transportvorrichtung 2 transportiert und nacheinander einzelnen Verarbeitungsstationen 4 zugeführt. In den einzelnen Verarbeitungsstationen 4 werden dann verschiedene Verarbeitungsschritte vorgenommen, um aus den Schlauchstücken 6 eine fertige Schlauchverpackung 6' zu formen. In der ersten Verarbeitungsstation 4 wird beispielsweise das Schlauchende aufgezogen, sodass nun der offene Boden in einer Ebene liegt. In der zweiten Verarbeitungsstation 4 wird ein erster Ventilzettel in den offenen Boden des Schlauchstücks 6 eingebracht. In der dritten Verarbeitungsstation 4 wird anschließend ein weiterer Ventilzettel in das betreffende Schlauchstück 6 eingeführt. In einer weiteren Verarbeitungsstation 4 werden Bereiche des Bodens mit Klebstoff oder dergleichen beschichtet. In einer nächsten Verarbeitungsstation 4 erfolgen vorliegend das Zulegen der Böden sowie das Verkleben der mit Klebstoff versehenen Schichten. In der letzten Verarbeitungsstation 4 wird vorliegend schließlich noch ein Bodendeckblatt auf den zuggeklebten Boden der nun fertigen Schlauchverpackung 6' aufgebracht. figure 1 shows a schematic representation of the production of tubular bags. In this case, individual hose pieces 6 made from a hose are transported one after the other by means of a transport device 2 and fed to individual processing stations 4 one after the other. Various processing steps are then carried out in the individual processing stations 4 in order to form a finished tubular packaging 6 ′ from the tubular pieces 6 . In the first processing station 4, for example, the end of the hose is pulled open so that the open bottom now lies in one plane. In the second processing station 4, a first valve sheet is introduced into the open bottom of the piece of tubing 6. In the third processing station 4, another valve sheet is then introduced into the tube piece 6 in question. In a further processing station 4 areas of the floor are coated with glue or the like. In the next processing station 4, the bases are added and the layers provided with adhesive are glued together. In the last In processing station 4, a bottom cover sheet is finally applied to the tension-bonded bottom of the now finished tubular packaging 6'.

Fig. 2 zeigt eine Transportvorrichtung 2 zum Transport von Schlauchstücken 6 aus dem Stand der Technik. Die Transportvorrichtung 2 umfasst hierbei ein oberes und ein unteres Transportmittel 14, 14', auf dem die vereinzelten Schlauchstücke 6 entlang der Transportrichtung z geführt werden. Die Schlauchstücke 6 werden hierbei zwischen den Transportmitteln 14, 14' gehalten, indem von den oberen und unteren Druckausübungseinheiten 16 und 16' ein Anpressdruck auf die Transportmittel 14 und 14' ausgeübt wird. Die Transportmittel 14, 14' können vorzugsweise als Riemen, insbesondere als Flachriemen gebildet sein. Zum Antrieb werden die Transportmittel 14, 14' von den Antriebseinheiten 12, 12' mit einer im Wesentlichen konstanten Geschwindigkeit angetrieben. Über an diversen Stellen der Transportvorrichtung 2 angeordnete Umlenkrollen 18 werden die Transportmittel 14, 14' in ihrer Position gehalten. Trotz einer im Wesentlichen konstanten Geschwindigkeit der beiden Transportmittel 14, 14', können im laufenden Betrieb der Transportvorrichtung 2 Geschwindigkeitsdifferenzen zwischen den Transportmitteln 14 und 14' auftreten, wodurch es zu Fehlpositionierungen der mittels der Transportmittel 14, 14' geführten Schlauchstücke 6 kommen kann. Diese Fehlpositionierungen sind insbesondere im Hinblick auf eine korrekte Verarbeitung der einzelnen Schlauchstücke 6 in nachfolgenden Verarbeitungsschritten problematisch. 2 shows a transport device 2 for transporting tube pieces 6 from the prior art. The transport device 2 here comprises an upper and a lower transport means 14, 14', on which the separated tube pieces 6 are guided along the transport direction z. The tube pieces 6 are held between the transport means 14, 14' by the upper and lower pressure application units 16 and 16' exerting a contact pressure on the transport means 14 and 14'. The transport means 14, 14' can preferably be formed as belts, in particular as flat belts. For driving purposes, the transport means 14, 14' are driven by the drive units 12, 12' at a substantially constant speed. The transport means 14, 14' are held in their position via deflection rollers 18 arranged at various points of the transport device 2. Despite an essentially constant speed of the two transport means 14, 14', speed differences between the transport means 14 and 14' can occur during operation of the transport device 2, which can result in incorrect positioning of the tube pieces 6 guided by means of the transport means 14, 14'. This incorrect positioning is particularly problematic with regard to correct processing of the individual tube pieces 6 in subsequent processing steps.

Gemäß dem Stand der Technik wird dieses Problem dadurch gelöst, dass an den Antriebseinheiten 12, 12' so genannte Spreizscheiben angeordnet sind, mittels derer eine Kompensation der Geschwindigkeitsdifferenzen der einzelnen Transportmittel 14, 14' erfolgen kann. Nachteilig an dieser Methode ist allerdings, dass der Prozess der Kompensation nicht automatisierbar ist und von Hand vorgenommen werden muss. Dies ist langwierig und erfordert einige Zeit, was zu ungewünschten Ausfällen des Produktionsprozesses und somit zu unnötigen Kosten führt.According to the prior art, this problem is solved in that so-called spreader disks are arranged on the drive units 12, 12', by means of which the speed differences of the individual transport means 14, 14' can be compensated for. The disadvantage of this method, however, is that the compensation process cannot be automated and must be carried out manually. This is tedious and requires some time, which leads to undesired downtimes in the production process and thus to unnecessary costs.

Fig. 3 zeigt eine erfindungsgemäße Transportvorrichtung 2 gemäß einem ersten Ausführungsbeispiel. Im Gegensatz zu der in Figur 2 dargestellten Transportvorrichtung 2 aus dem Stand der Technik weist die erfindungsgemäße Transportvorrichtung 2 elektrisch ansteuerbare Antriebseinheiten 12 und 12' auf, die derart innerhalb der Transportvorrichtung 2 angeordnet sind, dass eine Kompensation von Geschwindigkeitsdifferenzen zwischen den beiden Transportmitteln 14, 14' automatisierbar ist. Hierzu sind die Antriebseinheiten 12, 12' vorzugsweise als elektromotorische Antriebseinheiten, insbesondere als elektromotorische Direktantriebe, beispielsweise als Servomotoren oder dergleichen gebildet. Wird nun ein asynchroner Verlauf der Transportmittel 14 und 14' zueinander bzw. eine Geschwindigkeitsdifferenz zwischen den Transportmitteln 14 und 14' registriert, so können die Geschwindigkeitsdifferenzen durch Veränderung der Sollgeschwindigkeit eines Transportmittels 14 oder 14' kompensiert werden. Auf diese Weise entfällt der nachteilige, langwierige und nicht zu automatisierende, aus dem Stand der Technik bekannte Einstellungsvorgang. 3 shows a transport device 2 according to the invention according to a first embodiment. In contrast to the in figure 2 Transport device 2 shown from the prior art, the transport device according to the invention 2 electrically controllable drive units 12 and 12 'on such within the transport device 2 are arranged such that a compensation of speed differences between the two transport means 14, 14' can be automated. For this purpose, the drive units 12, 12' are preferably formed as electromotive drive units, in particular as electromotive direct drives, for example as servomotors or the like. If an asynchronous course of the transport means 14 and 14' to one another or a speed difference between the transport means 14 and 14' is registered, the speed differences can be compensated for by changing the setpoint speed of a transport means 14 or 14'. In this way, the disadvantageous, tedious and non-automatable adjustment process known from the prior art is eliminated.

Fig. 4 zeigt ein System 1 zum Transport von Schlauchstücken 6 umfassend eine Vorrichtung zum Transport von Schlauchstücken 6 gemäß einem zweiten Ausführungsbeispiel. Über einen Rotationsanleger 20 werden die auf einem Stapel 24 angeordneten vereinzelten Schlauchstücke 6 von einer Ablageeinheit 22 auf eine erste Zuführeinheit 26 befördert. Von der ersten Zufuhreinheit 26 gelangen die Schlauchstücke 6 nun in die Transportvorrichtung 2, in der die Schlauchstücke 6 über die Transportmittel 14 und 14' durch die Transportvorrichtung 2 geführt und den einzelnen Verarbeitungsstationen 4 zugeführt werden. Innerhalb der einzelnen Verarbeitungsstationen 4 finden die in Fig. 1 dargestellten und in der Beschreibung erläuterten Verarbeitungsschritte statt. Nach erfolgter Verarbeitung werden die fertigen Schlauchverpackungen 6' der Abführeinrichtung 28 zugeführt. 4 shows a system 1 for transporting tube pieces 6 comprising a device for transporting tube pieces 6 according to a second exemplary embodiment. The individual tube pieces 6 arranged on a stack 24 are conveyed from a storage unit 22 to a first feed unit 26 via a rotary feeder 20 . From the first feed unit 26, the tube pieces 6 now reach the transport device 2, in which the tube pieces 6 are guided through the transport device 2 via the transport means 14 and 14' and fed to the individual processing stations 4. Within the individual processing stations 4, the 1 processing steps shown and explained in the description. After processing has taken place, the finished tubular packaging 6' is fed to the removal device 28.

Zur Detektion von Geschwindigkeitsdifferenzen zwischen den Transportmitteln 14 und 14' und zur Vorbeugung etwaiger Fehlausrichtungen der zu transportierenden Schlauchverpackungen 6' weist das vorliegende System ferner eine Detektionseinheit 30 auf. Die Detektionseinheit 30 umfasst hierbei vorliegend zwei Sensoren 32, die im einfachsten Fall in Form von Lichtschranken 33, Kameras oder dergleichen gebildet sein können. Mittels der Sensoren 32 werden nun Daten für die Bestimmung der Geschwindigkeiten der Transportmittel 14 und 14' mit Hilfe von auf den Transportmitteln 14 und 14' angeordneten sensorisch erfassbaren Indices 40, 40' erfasst. Die auf den Transportmitteln 14 und 14' angeordneten Indices 40 und 40' werden sowohl am Eingang, als auch am Ausgang vom Sensor 32 erfasst, wodurch die Geschwindigkeit des betreffenden Transportmittels 14, 14' auf einfache Weise - beispielsweise über einen Vergleich der Soll-Geschwindigkeit mit der Ist-Geschwindigkeit - eindeutig bestimmt werden kann. Alternativ können auch andere oder auch nur ein Sensor 32 in dem vorliegenden System 1 zum Transport von Schlauchstücken 6 angeordnet sein, mittels dem Daten zur Bestimmung der Geschwindigkeitsdifferenzen der Transportmittel 14 und 14' erfasst werden können. Die von dem Sensor 32 bzw. den Sensoren 32 erfassten Messwerte werden hierbei der Verarbeitungseinheit 34 zugeführt, die aus den Messwerten eine Geschwindigkeitsdifferenz zwischen den Transportmitteln 14 und 14' ermittelt. In Abhängigkeit der ermittelten Geschwindigkeitsdifferenz kann nun über die Steuereinheit 36 eine Korrektur bzw. eine Kompensation der Geschwindigkeitsdifferenz erfolgen, indem die Steuereinheit 36 ein entsprechendes Signal an eine der Antriebseinheiten sendet, welche daraufhin eine Korrektur der Antriebsgeschwindigkeit zumindest eines Transportmittels vornimmt und somit die Geschwindigkeitsdifferenz zwischen den Transportmitteln kompensiert. Vorteilhafterweise sind die innerhalb des Systems 1 angeordneten Komponenten, insbesondere die Steuereinheit 36, die Verarbeitungseinheit 34, die Detektionseinheit 30, die Sensoren 32 sowie die Antriebseinheiten 12, 12' hierzu miteinander über eine Kommunikations- und Steuerleitung 38 miteinander verbunden, sodass eine reibungslose Kommunikation und Steuerung zwischen den Geräten gewährleistet ist. Im Rahmen einer besonders einfachen, flexiblen und einfach integrierbaren Ausführung können die einzelnen Komponenten des gegenständlichen Systems 1 hierbei auch drahtlos per Bluetooth, NFC, WLAN oder dergleichen miteinander verbunden sein.In order to detect differences in speed between the transport means 14 and 14' and to prevent any misalignment of the tubular packaging 6' to be transported, the present system also has a detection unit 30. In the present case, the detection unit 30 comprises two sensors 32, which in the simplest case can be in the form of light barriers 33, cameras or the like. The sensors 32 are now used to acquire data for determining the speeds of the transport means 14 and 14' with the aid of indices 40, 40' which can be detected by sensors and which are arranged on the transport means 14 and 14'. The on the means of transport 14 and 14 'arranged indices 40 and 40' are detected both at the entrance and at the exit of the sensor 32, whereby the speed of the respective means of transport 14, 14 'in a simple manner - for example, via a Comparison of the target speed with the actual speed - can be clearly determined. Alternatively, other or even just one sensor 32 can be arranged in the present system 1 for transporting hose sections 6, by means of which data for determining the speed differences of the transport means 14 and 14' can be recorded. The measured values recorded by the sensor 32 or the sensors 32 are fed to the processing unit 34, which determines a speed difference between the transport means 14 and 14' from the measured values. Depending on the determined speed difference, the speed difference can now be corrected or compensated via control unit 36, in that control unit 36 sends a corresponding signal to one of the drive units, which then corrects the drive speed of at least one means of transport and thus compensates for the speed difference between the means of transport compensated. Advantageously, the components arranged within the system 1, in particular the control unit 36, the processing unit 34, the detection unit 30, the sensors 32 and the drive units 12, 12' are connected to one another via a communication and control line 38, so that smooth communication and Control between the devices is guaranteed. Within the framework of a particularly simple, flexible and easily integrated embodiment, the individual components of the system 1 in question can also be connected to one another wirelessly via Bluetooth, NFC, WLAN or the like.

Bezuaszeichenlistereference list

11
System zum Transport von SchlauchstückenSystem for transporting hose sections
22
Transportvorrichtungtransport device
44
Verarbeitungsstationenprocessing stations
66
Schlauchstückehose pieces
6'6'
fertige Schlauchverpackungfinished tube packaging
88th
erstes Etikettfirst label
8'8th'
zweites Etikettsecond label
1212
obere Antriebseinheitupper drive unit
12'12'
untere Antriebseinheitlower drive unit
1414
oberes Transportmittelupper means of transport
14'14'
unteres Transportmittellower means of transport
1616
obere Druckausübungseinheitenupper pressurization units
16'16'
untere Druckausübungseinheitenlower pressurization units
1818
Umlenkrollenpulleys
2020
Rotationsanlegerrotary feeder
2222
Ablageeinheitstorage unit
2424
Stapel von SchlauchstückenStack of hose pieces
2626
Zuführeinheitfeeding unit
2828
Abführeinheitdischarge unit
3030
Detektionseinheitdetection unit
3232
Sensorsensor
3333
LichtschrankePhotoelectric barrier
3434
Verarbeitungseinheitprocessing unit
3636
Steuereinheitcontrol unit
3838
Kommunikations- und Steuerleitungcommunication and control line
4040
obere sensorisch erfassbare Indicesupper sensory indices
40'40'
untere sensorisch erfassbare Indiceslower sensory indices

Claims (15)

  1. A transport device (2) for transporting tubular pieces (6), comprising at least one upper and one lower transport means (14, 14') for guiding the tubular pieces (6), upper and lower pressure exerting units (16, 16') for exerting a contact pressure on the transport means (14, 14'), at least one upper and one lower drive unit (12, 12') for driving the transport means (14, 14') in a transport direction (z) at a substantially constant speed, wherein the transport means (14, 14') are arranged at least partially between the upper and lower pressure-exerting units (16, 16'),
    characterized in
    that the drive units (12, 12') are electrically controllable and are arranged inside the device (2) in such a way that speed differences between the two transport means (14, 14') can be automatically compensated.
  2. The transport device (2) according to claim 1,
    characterized in
    that the transport means (14, 14') are formed as belts, in particular, as flat belts.
  3. The transport device (2) according to claim 1 or 2,
    characterized in
    that the upper transport means (14) is arranged at least partially directly on the lower transport means (14') and/or that the transport means (14, 14') have indices (40, 40') which can be detected by sensors for determining the speed differences.
  4. The transport device (2) according to one of the preceding claims,
    characterized in
    that the pressure-exerting units (16, 16') are formed as rollers, in particular, as resilient rollers and/or that the drive units (12, 12') are formed as electromotive drive units, in particular, as electromotive direct drives, wherein preferably each drive unit (12, 12') is assigned to a transport means (14, 14').
  5. A system (1) for transporting tubular pieces (6), comprising
    - a transport device (2) for transporting tubular pieces (6) according to any one of claims 1 to 4,
    - a detection unit (30) for detecting data for determining a speed difference between the transport means (14, 14'),
    - a processing unit (34) for determining a speed difference between the transport means (14, 14') on the basis of the detected data,
    - a control unit (36) for compensating for the determined speed difference.
  6. The system (1) according to claim 5,
    characterized in
    that the detection unit (30) has at least one sensor (32) for detecting data, by means of which a speed difference between the transport means (14, 14') can be determined.
  7. The system (1) according to claim 5 or 6,
    characterized in
    that the detection unit (30) has at least two sensors (32), which are preferably arranged at different positions of the system (1), in particular, at different positions of the device (2) for transporting tubular pieces (6), wherein the sensors (32), in particular, enable a position recognition.
  8. The system (1) according to one of claims 5 to 7,
    characterized in
    that the detection unit (30) determines the speed difference between the transport means (14, 14') on the basis of position data of the tubular pieces (6) to be transported and/or that the detection unit (30) determines the speed difference between the transport means (14, 14') on the basis of data from different sensors (32), which are averaged and/or weighted by means of a processing unit (34) before a determination of a speed.
  9. The system (1) according to any one of claims 5 to 8,
    characterized in
    that the system (1) has at least one feed unit (26) for feeding individual tubular pieces (6) and/or at least one discharge unit (28) for discharging tubular pieces (6) transported within the transport device (2).
  10. The system (1) according to any one of claims 5 to 9,
    characterized in
    that the system (1) has at least one processing station (4), in particular, a base-laying unit and/or a valve-slip unit and/or a base unit and/or a carrying-belt unit.
  11. A paper base-laying device, comprising a transport device (2) for transporting tubular pieces (6) according to any one of claims 1 to 4, in particular, comprising a system (1) according to any one of claims 4 to 10.
  12. A method for transporting tubular pieces (6), comprising the following steps:
    - guiding the tubular pieces (6) by means of an upper and a lower transport means (14, 14'),
    - exerting a contact pressure on the transport means (14, 14') by means of pressure-exerting units (16, 16') arranged above and below the transport means (14, 14'),
    - driving the transport means (14, 14') at a substantially constant speed by means of at least two electrically controllable drive units (12, 12'),
    characterized in
    that the transport means (14, 14') are controlled by the electrically controllable drive units (12, 12') in such a way that speed differences between the two transport means (14, 14') are automatically compensated.
  13. The method according to claim 12,
    characterized in
    that the method comprises detecting data for determining a speed difference between the transport means (14, 14') by means of a detection unit (30) and/or the method comprises determining a speed difference between the transport means (14, 14') by means of a processing unit (34) on the basis of the detected data and/or compensating for the determined speed difference by means of a control unit (36).
  14. The method according to one of claims 12 to 13,
    characterized in
    that in addition to compensating for speed differences between the two transport means (14, 14'), in particular, when determining the speed difference between the transport means (14, 14') on the basis of position data of the tubular pieces (6) to be transported, the method also comprises a correction of the positioning of tubular pieces (6).
  15. The method according to claim 14,
    characterized in
    that an additional correction of the positioning of tubular pieces (6) takes place as a function of at least one of the following parameters:
    - magnitude of the deviation of the actual position from a target position,
    - total number of production steps to be carried out,
    - current production step of the relevant tubular piece (6) within the entire production process,
    - required quality standard,
    - cost of the product,
    - size of the production batch,
    - speed of the process, in particular, the current speed of the transport means (14, 14').
EP19730132.8A 2018-06-07 2019-06-05 Transport device Active EP3802385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018113631.5A DE102018113631A1 (en) 2018-06-07 2018-06-07 transport device
PCT/EP2019/064716 WO2019234124A1 (en) 2018-06-07 2019-06-05 Transport device

Publications (2)

Publication Number Publication Date
EP3802385A1 EP3802385A1 (en) 2021-04-14
EP3802385B1 true EP3802385B1 (en) 2022-03-30

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ID=66826962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19730132.8A Active EP3802385B1 (en) 2018-06-07 2019-06-05 Transport device

Country Status (4)

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EP (1) EP3802385B1 (en)
DE (1) DE102018113631A1 (en)
ES (1) ES2912061T3 (en)
WO (1) WO2019234124A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882012A3 (en) * 2020-03-18 2022-01-05 Windmöller & Hölscher KG Sack or bag manufacturing device and method for sack or bag manufacturing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9824162D0 (en) * 1998-11-04 1998-12-30 Rue De Int Ltd Sheet transport system
DE19853026C1 (en) * 1998-11-18 2000-03-30 Icoma Fbs Gmbh Packtechnik Device for aligning sections of tubing e.g. multiple layers of paper cut in grades on their face side, has first conveyor belts running parallel to each other set up at a preset distance from second conveyor belts
JP5323631B2 (en) * 2009-09-29 2013-10-23 大日本スクリーン製造株式会社 Inkjet image recording apparatus and belt conveyance correction method
DE102009047362B4 (en) * 2009-11-25 2013-07-04 Windmöller & Hölscher Kg System and method for making sacks or bags

Also Published As

Publication number Publication date
ES2912061T3 (en) 2022-05-24
DE102018113631A1 (en) 2019-12-12
WO2019234124A1 (en) 2019-12-12
EP3802385A1 (en) 2021-04-14

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