EP2467324A1 - Method and device for laying down a flexible material web - Google Patents

Method and device for laying down a flexible material web

Info

Publication number
EP2467324A1
EP2467324A1 EP10740642A EP10740642A EP2467324A1 EP 2467324 A1 EP2467324 A1 EP 2467324A1 EP 10740642 A EP10740642 A EP 10740642A EP 10740642 A EP10740642 A EP 10740642A EP 2467324 A1 EP2467324 A1 EP 2467324A1
Authority
EP
European Patent Office
Prior art keywords
air nozzles
material web
blowing
depositing
activated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10740642A
Other languages
German (de)
French (fr)
Other versions
EP2467324B1 (en
Inventor
Torsten Goele
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co 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
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP2467324A1 publication Critical patent/EP2467324A1/en
Application granted granted Critical
Publication of EP2467324B1 publication Critical patent/EP2467324B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile

Definitions

  • the invention relates to a method for depositing a flexible material web according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 9.
  • two different variants are known for depositing a material web in order to guide a flexible material web into a plurality of superimposed material layers.
  • the material web is fed by a stationary feeder to a storage location.
  • the stationary feeding device is associated with laying means, by means of which the material web is guided back and forth between two mutually opposite ends of the depositing point.
  • the feeding device is kept movable, and guided back and forth above the deposition point between the ends of the deposition site. This makes it possible to realize very large layoff lengths for the production of the material layers.
  • a method and such a device are known for example from DE 10 2005 016 754 Al.
  • the supply takes place via rollers which are arranged on a horizontally movable carriage. The car is placed between the ends of the storage Station back and forth. To assist the laying process, the rollers are associated with blowing devices, which are formed on the carriage and generate a directed to the material web blowing.
  • Another object of the invention is to provide a method and a device of the generic type, with which or which the material web is particularly gently stored.
  • the invention makes use of contactless guidance of the web of material by means of blowing, wherein for bridging the large laying lengths the blowing is produced by a plurality of successively activated air nozzles.
  • the blowing effect produced by one air nozzle in each case can be limited in its conveying action to a functional range permissible for normal compressed air.
  • the blowing direction air nozzles any Ablegeartin.
  • At least one of the blowing devices is formed by a plurality of air nozzles arranged along one of the depositing devices, which are each aligned in the depositing direction and can be activated one after the other.
  • Mechanical means for guiding and depositing the material web can at least be disclosed reduce a minimum
  • the zig-zag Formige storage of Mate ⁇ albahn is achieved exclusively by the change-side activation of the blowing devices
  • the process variant is particularly advantageous, which also the opposite blowing is also generated by a plurality of successively activated Lucasdusen that m blow the opposing Ablage ⁇ ch- direction.
  • the device according to the invention has the supply device arranged in the middle region of the storage station, the second blowing device having a plurality of air nozzles arranged along the second depositing direction, each aligned in the storage direction and activatable one after the other.
  • the air nozzles are activated to produce the blisters depending on a position of the material web between the ends of the deposition site.
  • the time intervals for activating the air nozzles which are blowing in the direction of deposition can be matched to the feed speed of the material web so that no negative superimposition effects can occur.
  • the feed rate for depositing a material web is preferably kept constant during the depositing operation, the method variant is particularly advantageous, in which the air nozzles are activated as a function of a chronological switch-on sequence which is determined as a function of the feed rate of the material web.
  • each setting of a feed speed can be assigned a specific start-up sequence, which then carries out the activation of the air nozzles to produce the blow-ups.
  • the method variant can be further improved by detecting the feed speed of the material web from a circumferential speed of a feed roller, through which feed roller the material web is fed. Correction adjustments can therefore also be made within a depositing process in order, for example, to take account of deviations in the feed rate directly in the startup sequence.
  • the method variant is particularly suitable in which the
  • Injections are generated by a plurality of opposite at both longitudinal sides of the deposit air nozzles. They can do that
  • the material web can be guided and laid evenly over the entire width of the strip.
  • the air nozzles located directly opposite the longitudinal sides preferably form an air nozzle pair which is activated and deactivated synchronously. This makes it possible to avoid misalignments of the material web within the storage location due to uneven inflations on the longitudinal sides of the material web.
  • the material layers are preferably attached to the ends of the storage layer. smoothed and held by two movable hold-downs.
  • the material layers can be tightly folded very compactly as a stack.
  • the air nozzles for generating the blowing are preferably carried out according to an advantageous development of the invention with a control valve which is connected to a control device and independently of each other for the activation of the air nozzles is controllable.
  • a control valve which is connected to a control device and independently of each other for the activation of the air nozzles is controllable.
  • control device In order to be able to make corrections to the activation sequence of the control valves for guiding and depositing the material web, the control device is connected according to a device variant with a sensor device by which a current position of the material web between the ends of the deposition station can be detected directly or indirectly. It can even be used to run online controls to enable and disable the air jets.
  • the sensor device Since the position of the web in the deposition is determined essentially by the feed rate and thus the supplied material length between storage station and feeder, the sensor device preferably has a speed sensor which is assigned to detect the peripheral speed of a feed roller of the feeder. This makes it possible to determine the material length of the material web which is fed per unit time and which directly influences the position of the material web.
  • the feeding of the material web is preferably carried out in the device according to the invention by means of a feed device formed from a pair of rollers.
  • the conveyor rollers face each other in a conveying gap, wherein at least one of the conveyor rollers is drivable.
  • the material web can be fed to the deposition station essentially without slippage, so that a substantially constant supply speed is ensured during the deposition process.
  • the laying of a material web with larger strips of material is preferably carried out with the device variant in which at least one of the blowing devices has a plurality of air nozzles distributed on both longitudinal sides of the depositing station.
  • the degree of guidance of the material web between the longitudinal sides of the storage station is achieved in particular by the fact that the air nozzles directly opposite the longitudinal sides form an air nozzle pair whose associated control valves can be controlled synchronously.
  • the deposition of the material web in a stack of several material layers which is as compact as possible can be achieved in particular by arranging a separate movable hold-down at each end of the deposition station, which can be driven by actuators for smoothing and holding the material layers.
  • This development of the device also has the advantage that after the switching of the blowing devices, the deposited piece of material of the material web remains fixed at the end of the deposition site.
  • the storage station preferably performs a transverse movement between see two end positions, to be able to occupy a larger storage area of the storage station in band-shaped material webs. In this case, several zig-zag-shaped material layers are formed, which are laid next to each other and to one another in a pile.
  • Fig. 1 shows schematically a side view of an embodiment of the device according to the invention for carrying out the method according to the invention
  • Fig. 4 shows schematically the embodiment of Fig. 1 in different
  • FIG. 1 shows the embodiment schematically in a cross-section views and in Fig. 2, the embodiment is shown in a plan view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the deposit location for receiving a material web 2 into a plurality of deposited material layers 16 is formed by a storage station 1.
  • the storage station 1 can be formed for example by a height-adjustable storage table.
  • the storage station 1 extends over a laying length between two ends 17.1 and 17.2.
  • the laying length of the storage station 1 is in this case significantly larger than a depositing width, which are determined by two opposite longitudinal sides 18.1 and 18.2 of the storage station.
  • the storage station 1 is associated with a stationary feeder 3 in the central region.
  • the feeder 3 is held above the storage station 1 and has two conveyor rollers 4.1 and 4.2, which form a conveyor pair as a pair of rollers, in which the material web 2 is supplied.
  • One of the feed rollers 4.1 or 4.2 is connected to a drive.
  • a laying device 5 is provided to deposit the supplied material web 2 in a zigzag fashion to form several layers of material in the depositing station.
  • the laying device 5 has two blowing devices 6.1 and 6.2 in order to alternately generate a blowing directed in a depositing direction.
  • the blowing device 6.1 a total of three air nozzles 7.1, 7.2 and 7.3.
  • the air nozzles 7.1 to 7.3 are arranged distributed on the longitudinal side 18.1 in the area between the feed device 3 and the end 17.1 of the storage station 1 at a distance from each other.
  • a first air nozzle 7.1 is held immediately below the conveyor rollers 4.1 and 4.2.
  • the second air nozzle 7.2 and the third air nozzle 7.3 are arranged on the longitudinal side 18.1 until shortly before the end 17.1 of the storage station 1.
  • Each of the air nozzles 7.1, 7.2 and 7.3 have an identical blowing direction, which in this case defines the storage direction towards the end 17.1 of the storage station 1.
  • Each air nozzles 7.1 to 7.3 are each assigned a control valve 9.1 to 9.3.
  • the control valves 9.1 to 9.3 are connected via a control line to a control device 11.
  • each of the control valves 9.1 to 9.3 for activating and deactivating the air nozzles 7.1 to 7.3 can be controlled separately.
  • the air nozzles 7.1 to 7.3 are connected to a compressed air source, not shown here.
  • the blowing device 6.1 has on the opposite longitudinal side 18.2 of the deposition station further air nozzles 7.4 to 7.6 which lie directly opposite the air nozzles 7.1 to 7.3 on the longitudinal side 18.1.
  • Each of the air nozzles 7.4 to 7.6 is also associated with a control valve 9.4 to 9.6.
  • the control valves 9.4 to 9.6 are coupled to the control device 11, which is not shown in detail at this point.
  • the air nozzles 7.4 to 7.6 also have a blowing direction, which is directed in the direction of deposit to the end 17.1 of the storage station 1.
  • the air nozzles 7.1 to 7.6 connected to a pressure source are aligned in such a way that the blowing is directed onto the material web 2 guided between the air nozzles.
  • the directly opposite air nozzles 7.1 and 7.4 or 7.2 and 7.5 or 7.3 and 7.6 synchronously activated or deactivated as an air nozzle pair.
  • the respective control valves 9.1 and 9.4 are controlled synchronously.
  • a second blowing device 6.2 is provided in order to guide the material web 2 for laying in the opposite direction of deposition to the opposite end 17. 2 of the deposition station 1.
  • the blowing device 6.2 three air nozzles 8.1 to 8.3, which are arranged distributed on the longitudinal side 18.1.
  • a first air nozzle 8.1 is held between the air nozzles 7.1 and 7.2 of the first blowing device 6.1.
  • the air nozzles 8.2 and 8.3 are arranged distributed on the longitudinal side 18.2 between the end 17.2 and the feeder 3.
  • Each of the air nozzles 8.1 to 8.3 has a blow direction directed towards the end 17.2 and thus forms an opposite blow for guiding and depositing the material web 2 to the opposite end 17.2 of the deposition station 1.
  • Each of the air nozzles 8.1 to 8.3 is connected via a separate control valve 10.1 to 10.3 connected to a pressure source.
  • the control valves 10.1 to 10.3 are connected via control lines to the control device 11 and independently controllable.
  • the second blowing device 6.2 is likewise formed by further air nozzles 8.4 to 8.6 on the opposite longitudinal side 18.2 of the deposition station 1.
  • the air nozzles 8.4 to 8.6 each form a plurality of pairs of air nozzles with the air nozzles 8.1 to 8.3, which are activated and deactivated synchronously via their associated control valves 10.1 to 10.6.
  • the air nozzles 8.1 to 8.6 are aligned on the longitudinal sides 18.1 and 18.2 of the deposition station such that the blowing produced by the blowing device 6.2 is directed directly onto the material web 2 guided between the longitudinal sides 18.1 and 18.2.
  • the air nozzles 7.1 to 7.6 of the first blowing device 6.1 and the air nozzles 8.1 to 8.6 of the second blowing device 6.2 are preferred supplies a common compressed air source. However, there is also the possibility that each blowing device 6.1 and 6.2 are assigned separate sources of compressed air.
  • the control device 11 is coupled to a sensor device 14.
  • the sensor device 14 is formed in this embodiment by a speed sensor 15 which is assigned to the driven conveyor roller 4.1. By the speed sensor 15, the drive speed of the feed roller 4.1 or the peripheral speed of the feed roller 4.1 is detected and transmitted to the control device 11.
  • each of the ends 17.1 and 17.2 is assigned a hold-down 12.1 and 12.2.
  • the hold-down 12.1 and 12.2 are plate-shaped and driven by an actuator 13.1 and 13.2 movable.
  • FIG. 1 in different operating states for storing the material web 2 is shown.
  • the web 2 is continuously supplied to the tray station 1 by the feeder 3.
  • the first air nozzle 7.1 or the first pair of air nozzles 7.1 and 7.4 is connected via the control device 11 is activated.
  • the generated blow is directed to the web 2 and leads them in a first storage direction to the end of 17.1.
  • the material web 2 deposits on the deposition station 1 or the topmost material layer 16.
  • the adjacent air nozzle 7.2 or the adjacent air nozzle pair 7.2 and 7.5 these are activated.
  • the blowing action of the first blowing device 6.1 is maintained and guides the material web 2 continuously to the end 17.1 of the deposition station 1.
  • the material web 2 is folded and smoothed by the holding-down device 12.1, so that a new material layer 16 can be produced by guiding the material web 2 in the opposite depositing direction.
  • the first blowing device 6.1 is deactivated, so that the material web 2 in the section between the end
  • the air nozzles 8.1 to 8.6 or the air nozzle pairs of the blowing device 6.2 are also activated according to a time sequence which is predetermined by the control device 11 as a function of the feed speed of the material web 2.
  • the material web 2 settles to a new material layer, and is folded at the opposite end 17.2 by the second hold-down 12.2, smoothed and fixed.
  • the inventive method and the device according to the invention are not limited to the illustrated and described embodiment. In principle, the number of air nozzles for guiding the material web in a depositing direction depends in particular on the length of the laying line. Depending on the storage station, additional air nozzles can be added.
  • blowing device with non-central arrangement of the feeder with a different number of air nozzles.
  • the feeding of the material web could also take place at one end of the deposition station, so that only one of the blowing devices would be formed by a plurality of air nozzles distributed on the longitudinal sides.
  • the control device In order to activate the air nozzles, the control device is preferably given a chronological start-up sequence that is tuned to a specific feed speed of the material web.
  • the sensor device is formed by position sensors which are arranged distributed along one of the longitudinal sides.
  • the method variant is carried out, in which the feed rate is monitored via a speed sensor.
  • the storage stations are preferably coupled to a drive, which executes a movement between two end positions transversely directed for receiving the material layers.
  • a drive which executes a movement between two end positions transversely directed for receiving the material layers.
  • This can also be advantageous square material stacks are laid in which the storage length is equal to a storage width.

Abstract

The invention relates to a method for laying down a flexible material web (2) in a plurality of material layers laying one upon the other and to a device for performing the method. The material web is thereby fed to a laydown position and fed back and forth by a first airstream in a first laydown direction toward an end of the laydown position and by a second airstream in a second laydown direction toward an opposite end (17.1, 17.2) of the laydown position. The airstreams are thereby generated by two blower devices (6.1, 6.2) having a plurality of air nozzles (7.1, 7.6, 8.1, 8.6) and activated alternatingly. In order to be able to lay down the material web (2) over a larger laydown length, at least one of the airstreams is generated according to the invention by a plurality of air nozzles activated successively and blowing in one of the laydown directions. To this end, a plurality of air nozzles are disposed distributed along the laydown direction.

Description

Verfahren und Vorrichtung zum Ablegen einer flexiblen Materialbahn  Method and device for depositing a flexible material web
Die Erfindung betrifft ein Verfahren zum Ablegen einer flexiblen Materi- albahn gemäß dem Oberbegriff des Anspruchs 1 sowie eine Vorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des Anspruchs 9. The invention relates to a method for depositing a flexible material web according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 9.
Zum Ablegen einer Materialbahn sind grundsätzlich zwei verschiedene Varianten bekannt, um eine flexible Materialbahn in mehrere übereinander liegende Materiallagen zu führen. Bei einer ersten Variante wird die Materialbahn durch eine stationäre Zuführeinrichtung einer Ablagestelle zugeführt. Der stationären Zuführeinrichtung sind Verlegemittel zugeordnet, durch welche die Materialbahn zwischen zwei sich gegenüberlie- genden Enden der Ablagestelle hin- und hergeführt wird. In principle, two different variants are known for depositing a material web in order to guide a flexible material web into a plurality of superimposed material layers. In a first variant, the material web is fed by a stationary feeder to a storage location. The stationary feeding device is associated with laying means, by means of which the material web is guided back and forth between two mutually opposite ends of the depositing point.
Ein derartiges Verfahren und eine derartige Vorrichtung gehen beispielsweise aus der US 4,460,350 hervor. Bei der dem bekannten Verfahren und bei der bekannten Vorrichtung sind zu beiden Seiten der Materialbahn unterhalb der Zuführeinrichtung stationäre Luftdüsen angeordnet, die wechselweise eine auf die Materialbahn gerichtete Anblasung erzeugen, so dass die Materialbahn sich in Falten zu mehreren Materiallagen ablegt. Derartige Verfahren und Vorrichtungen sind jedoch nur für relativ kurze Ablegelängen geeignet. Such a method and device can be seen for example from US 4,460,350. In the known method and in the known device stationary air nozzles are arranged on both sides of the web below the feeder, which alternately generate a directed on the web of material blowing, so that the web deposits in folds to several layers of material. However, such methods and devices are suitable only for relatively short Ablegelängen.
Demgegenüber wird bei einer zweiten Verfahrensvariante zum Ablegen einer flexiblen Materialbahn die Zuführeinrichtung beweglich gehalten, und oberhalb der Ablagestelle zwischen den Enden der Ablagestelle hin- und hergeführt. Damit lassen sich sehr große Ablegelängen zur Erzeu- gung der Materiallagen realisieren. Ein derartiges Verfahren und eine derartige Vorrichtung sind beispielsweise aus der DE 10 2005 016 754 Al bekannt. Bei den bekannten Verfahren und bei der bekannten Vorrichtung erfolgt die Zuführung über Walzen, die an einem horizontal beweglichen Wagen angeordnet sind. Der Wagen wird zwischen den Enden der Ablage- Station hin- und hergeführt. Zur Unterstützung des Legevorganges sind den Walzen Blaseinrichtungen zugeordnet, die am Wagen ausgebildet sind und einen auf die Materialbahn gerichtete Anblasung erzeugen. Derartige Verfahren und Vorrichtungen besitzen jedoch den Nachteil, dass sämtliche Energieanschlüsse und -Zuführungen flexibel gestaltet werden müssen, um die Beweglichkeit der Zuführeinrichtung zwischen den Enden der Ablagestation zu gewährleisten. Es ist nun Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung der gattungsgemäßen Art derart weiterzubilden, um eine Materialbahn über eine relativ große Ablegelänge mit einfachen Mitteln ablegen zu können. In contrast, in a second variant of the method for depositing a flexible material web, the feeding device is kept movable, and guided back and forth above the deposition point between the ends of the deposition site. This makes it possible to realize very large layoff lengths for the production of the material layers. Such a method and such a device are known for example from DE 10 2005 016 754 Al. In the known methods and in the known device, the supply takes place via rollers which are arranged on a horizontally movable carriage. The car is placed between the ends of the storage Station back and forth. To assist the laying process, the rollers are associated with blowing devices, which are formed on the carriage and generate a directed to the material web blowing. However, such methods and devices have the disadvantage that all power connections and feeds must be made flexible in order to ensure the mobility of the feeder between the ends of the storage station. It is an object of the invention to develop a method and a device of the generic type in such a way to be able to deposit a material web over a relatively large laying length with simple means.
Ein weiteres Ziel der Erfindung liegt darin, ein Verfahren und eine Vor- richtung der gattungsgemäßen Art bereitzustellen, mit welchem bzw. welcher die Materialbahn besonders schonend ablegbar ist. Another object of the invention is to provide a method and a device of the generic type, with which or which the material web is particularly gently stored.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen nach Anspruch 1 sowie durch eine Vorrichtung mit den Merkmalen nach Anspruch 9 gelöst. This object is achieved by a method with the features of claim 1 and by a device having the features of claim 9.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der jeweiligen Unteransprüche definiert. Die Erfindung nutzt die kontaktlose Führung der Materialbahn mittels einer Anblasung, wobei zur Überbrückung der großen Ablegelängen die Anblasung durch mehrere nacheinander aktivierte Luftdüsen erzeugt wird. Damit lässt sich zum einen die durch jeweils eine Luftdüse erzeugte Anblasung in ihrer Förderwirkung auf ein für normale Druckluft zulässi- gen Funktionsbereich einschränken. Zum anderen lässt sich über die Anzahl der in einer Blasrichtung hintereinander angeordnete Luftdüsen beliebige Ablegelängen realisieren. Zur Durchfuhrung des erfindungsgemaßen Verfahrens ist bei der erfin- dungsgemaßen Vorrichtung zumindest eine der Blasvorrichtungen durch mehrere entlang einer der Ablageπchtungen angeordneten Luftdusen gebildet, die jeweils in Ablagerichtung ausgerichtet sind und nacheinander aktivierbar sind Mechanische Mittel zur Fuhrung und Ablage der Materi- albahn lassen sich zumindest auf ein Minimum reduzieren Die Zick-Zack- formige Ablage der Mateπalbahn wird ausschließlich durch die Wechsel seitige Aktivierung der Blasvorrichtungen erreicht Für den Fall, dass die Materialbahn im mittleren Bereich der Ablagestelle durch eine ortsfeste Zufuhrernrichtung zugeführt wird, ist die Verfahrensvariante besonders vorteilhaft, bei welcher auch die entgegengerichtete Anblasung ebenfalls durch mehrere nacheinander aktivierte Luftdusen erzeugt wird, die m die entgegengerichtete Ablageπch- tung blasen. Damit wird das Hm- und Herfuhren der Materialbahn zwischen den Enden der Ablagestelle ausschließlich durch die wechselweise aktivierten Anblasungen durchgeführt. Jede der Anblasungen weist somit mehrere zeitlich nacheinander aktivierte Luftdusen auf, so dass die Materialbahn m große Ablegelangen gelegt werden kann. Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims. The invention makes use of contactless guidance of the web of material by means of blowing, wherein for bridging the large laying lengths the blowing is produced by a plurality of successively activated air nozzles. In this way, on the one hand, the blowing effect produced by one air nozzle in each case can be limited in its conveying action to a functional range permissible for normal compressed air. On the other hand can be implemented on the number of successively arranged in a blowing direction air nozzles any Ablegelängen. For carrying out the method according to the invention, in the device according to the invention at least one of the blowing devices is formed by a plurality of air nozzles arranged along one of the depositing devices, which are each aligned in the depositing direction and can be activated one after the other. Mechanical means for guiding and depositing the material web can at least be disclosed reduce a minimum The zig-zag Formige storage of Mateπalbahn is achieved exclusively by the change-side activation of the blowing devices In the event that the material web is fed in the central region of the deposit by a stationary Zuführernrichtung, the process variant is particularly advantageous, which also the opposite blowing is also generated by a plurality of successively activated Luftdusen that m blow the opposing Ablageπch- direction. Thus, the Hm and Herfuhren the material web between the ends of the storage location is carried out exclusively by the alternately activated Anblasungen. Each of the bubbles thus has a plurality of successively activated Luftdusen, so that the material web m large Ablegelangen can be placed.
Die erfindungsgemaße Vorrichtung weist hierzu die im mittleren Bereich der Ablagestation angeordnete Zufuhreinrichtung auf, wobei die zweite Blasvorrichtung mehrere entlang der zweiten Ablagerichtung angeordnete Luftdusen aufweist, die jeweils m Ablagerichtung ausgerichtet und nach- einander aktivierbar smd. For this purpose, the device according to the invention has the supply device arranged in the middle region of the storage station, the second blowing device having a plurality of air nozzles arranged along the second depositing direction, each aligned in the storage direction and activatable one after the other.
Um eine kontinuierliche Fuhrung und sichere Ablage der Materialbahn zu gewährleisten, werden gemäß emer bevorzugten Verfahrensvariante die Luftdusen zur Erzeugung emer der Anblasungen m Abhängigkeit von ei- ner Lage der Materialbahn zwischen den Enden der Ablagestelle aktiviert. So können die zeitlichen Abstande zur Aktivierung der m eine Ablagerichtung blasenden Luftdusen auf die Zufuhrgeschwindigkeit der Materialbahn abgestimmt werden, so dass kerne negativen Uberlagerungseffekte entstehen können. Da die Zuführgeschwindigkeit zum Ablegen einer Materialbahn vorzugsweise während des Ablegevorganges konstant gehalten wird, ist die Verfahrensvariante besonders vorteilhaft, bei welcher die Luftdüsen in Ab- hängigkeit einer zeitlichen Einschaltfolge aktiviert werden, die in Abhängigkeit von der Zuführgeschwindigkeit der Materialbahn bestimmt ist. So lässt sich beispielsweise jeder Einstellung einer Zuführgeschwindigkeit eine bestimmt Einschaltfolge zuweisen, die dann die Aktivierung der Luftdüsen zur Erzeugung der Anblasungen vornimmt. In order to ensure a continuous guidance and reliable deposition of the material web, according to the preferred method variant, the air nozzles are activated to produce the blisters depending on a position of the material web between the ends of the deposition site. Thus, the time intervals for activating the air nozzles which are blowing in the direction of deposition can be matched to the feed speed of the material web so that no negative superimposition effects can occur. Since the feed rate for depositing a material web is preferably kept constant during the depositing operation, the method variant is particularly advantageous, in which the air nozzles are activated as a function of a chronological switch-on sequence which is determined as a function of the feed rate of the material web. Thus, for example, each setting of a feed speed can be assigned a specific start-up sequence, which then carries out the activation of the air nozzles to produce the blow-ups.
Die Verfahrensvariante lässt sich noch dadurch verbessern, in dem die Zuführgeschwindigkeit der Materialbahn aus einer Umfangsgeschwindigkeit einer Förderwalze erfasst wird, durch welche Förderwalze die Materialbahn zugeführt wird. Damit können auch innerhalb eines Ablegevorganges Korrektureinstellungen vorgenommen werden, um beispielsweise Abweichungen der Zuführgeschwindigkeit unmittelbar in der Einschaltfolge zu berücksichtigen. The method variant can be further improved by detecting the feed speed of the material web from a circumferential speed of a feed roller, through which feed roller the material web is fed. Correction adjustments can therefore also be made within a depositing process in order, for example, to take account of deviations in the feed rate directly in the startup sequence.
Um Materialbahnen mit möglichst großer Streifenbreite ablegen zu kön- nen, ist die Verfahrensvariante besonders geeignet, bei welcher dieIn order to be able to deposit material webs with the widest possible strip width, the method variant is particularly suitable in which the
Anblasungen durch mehrere sich an beiden Längsseiten der Ablagestelle gegenüberliegenden Luftdüsen erzeugt werden. Damit lässt sich jederInjections are generated by a plurality of opposite at both longitudinal sides of the deposit air nozzles. Everyone can do that
Längsseite der Ablagestelle eine auf die Materialbahn gerichteteLongitudinal side of the deposit point directed at the material web
Anblasung erzeugen. Die Materialbahn lässt sich über die gesamte Strei- fenbreite gleichmäßig führen und ablegen. Generate blowing. The material web can be guided and laid evenly over the entire width of the strip.
Hierbei bilden die sich unmittelbar an den Längsseiten gegenüberliegenden Luftdüsen vorzugsweise ein Luftdüsenpaar, das synchron aktiviert und deaktiviert wird. Damit lassen sich Schiefstellungen der Materialbahn innerhalb der Ablagestelle durch ungleichmäßige Anblasungen an den Längsseiten der Materialbahn vermeiden. In this case, the air nozzles located directly opposite the longitudinal sides preferably form an air nozzle pair which is activated and deactivated synchronously. This makes it possible to avoid misalignments of the material web within the storage location due to uneven inflations on the longitudinal sides of the material web.
Zur Befestigung und Fixierung der Materiallagen werden diese gemäß einer vorteilhaften Verfahrensvariante bevorzugt an den Enden der Ablage- stelle durch zwei bewegliche Niederhalter geglättet und gehalten. Die Materiallagen können so eng gefaltet sehr kompakt als Stapel fixiert werden. For fastening and fixing the material layers, according to an advantageous variant of the method, they are preferably attached to the ends of the storage layer. smoothed and held by two movable hold-downs. The material layers can be tightly folded very compactly as a stack.
Bei der erfindungsgemäßen Vorrichtung werden die Luftdüsen zur Erzeu- gung der Anblasung bevorzugt gemäß einer vorteilhaften Weiterbildung der Erfindung mit einem Steuerventil ausgeführt, das mit einer Steuereinrichtung verbunden ist und unabhängig voneinander zur Aktivierung der Luftdüsen steuerbar ist. Damit ist jeder der Luftdüsen zum Aktivieren und Deaktivieren unmittelbar über eine Steuereinrichtung steuerbar. In the device according to the invention, the air nozzles for generating the blowing are preferably carried out according to an advantageous development of the invention with a control valve which is connected to a control device and independently of each other for the activation of the air nozzles is controllable. Thus, each of the air nozzles for activating and deactivating directly controllable via a control device.
Um ggf. Korrekturen bei der Einschaltfolge der Steuerventile zur Führung und Ablage der Materialbahn vornehmen zu können, ist die Steuereinrichtung gemäß einer Vorrichtungsvariante mit einer Sensoreinrichtung verbunden, durch welche eine momentane Lage der Materialbahn zwischen den Enden der Ablagestation direkt oder indirekt erfassbar ist. Damit lassen sich sogar Online-Steuerungen zum Aktivieren und Deaktivieren der Luftdüsen ausführen. In order to be able to make corrections to the activation sequence of the control valves for guiding and depositing the material web, the control device is connected according to a device variant with a sensor device by which a current position of the material web between the ends of the deposition station can be detected directly or indirectly. It can even be used to run online controls to enable and disable the air jets.
Da die Lage der Materialbahn in der Ablagestelle im wesentlichen durch die Zuführgeschwindigkeit und damit die zugeführte Materiallange zwischen Ablagestation und Zuführeinrichtung bestimmt ist, weist die Sensoreinrichtung bevorzugt einen Drehzahlsensor auf, welcher zur Erfassung der Umfangsgeschwindigkeit einer Förderwalze der Zuführeinrichtung zugeordnet ist. Damit lässt sich die pro Zeiteinheit zugeführte Mate- riallange der Materialbahn, die unmittelbar die Lage der Materialbahn be- einflusst, bestimmen. Since the position of the web in the deposition is determined essentially by the feed rate and thus the supplied material length between storage station and feeder, the sensor device preferably has a speed sensor which is assigned to detect the peripheral speed of a feed roller of the feeder. This makes it possible to determine the material length of the material web which is fed per unit time and which directly influences the position of the material web.
Die Zuführung der Materialbahn wird bei der erfindungsgemäßen Vorrichtung bevorzugt durch eine aus einem Walzenpaar gebildeten Zuführ - einrichtung vorgenommen. Hierbei hegen die Förderwalzen sich in einem Förderspalt gegenüber, wobei zumindest eine der Fόrderwalzen antreibbar ist. Damit lässt sich die Materialbahn im Wesentlichen ohne Schlupf der Ablagestation zuführen, so dass während des Ablegevorganges eine im Wesentlichen konstante Zuführgeschwindigkeit gewährleistet bleibt. Die Verlegung einer Materialbahn mit größeren Materialstreifen wird bevorzugt mit der Vorrichtungsvariante ausgeführt, bei welcher zumindest eine der Blasvorrichtungen mehre an beiden Längsseiten der Ablagestati- on verteilt angeordnete Luftdüsen aufweist. The feeding of the material web is preferably carried out in the device according to the invention by means of a feed device formed from a pair of rollers. In this case, the conveyor rollers face each other in a conveying gap, wherein at least one of the conveyor rollers is drivable. In this way, the material web can be fed to the deposition station essentially without slippage, so that a substantially constant supply speed is ensured during the deposition process. The laying of a material web with larger strips of material is preferably carried out with the device variant in which at least one of the blowing devices has a plurality of air nozzles distributed on both longitudinal sides of the depositing station.
Die Gradführung der Materialbahn zwischen den Längsseiten der Ablagestation wird besonders dadurch erreicht, dass die sich an den Längsseiten unmittelbar gegenüberliegenden Luftdüsen ein Luftdüsenpaar bilden, de- ren zugeordneten Steuerventile synchron steuerbar sind. The degree of guidance of the material web between the longitudinal sides of the storage station is achieved in particular by the fact that the air nozzles directly opposite the longitudinal sides form an air nozzle pair whose associated control valves can be controlled synchronously.
Die Ablage der Materialbahn in einem möglichst kompakten Stapel von mehreren Materiallagen lässt sich besonders dadurch erreichen, dass an jedem Ende der Ablagestation ein separater beweglicher Niederhalter an- geordnet ist, welcher über Aktoren zum Glätten und Halten der Materiallagen antreibbar ist. Diese Weiterbildung der Vorrichtung hat zudem den Vorteil, dass nach dem Umschalten der Blasvorrichtungen das abgelegte Materialstück der Materialbahn an dem Ende der Ablagestelle fixiert bleibt. Die Ablagestation führt vorzugsweise eine Querbewegung zwi- sehen zwei Endlagen aus, um bei bandförmigen Materialbahnen eine größere Ablagefläche der Ablagestation belegen zu können. In diesem Fall bilden sich mehrere Zick-Zack-förmige Materiallagen, die nebeneinander und aufeinander zu einem Stapel verlegt werden. Das erfindungsgemäße Verfahren wird nachfolgend anhand eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung unter Bezug auf die beigefügten Figuren näher erläutert. The deposition of the material web in a stack of several material layers which is as compact as possible can be achieved in particular by arranging a separate movable hold-down at each end of the deposition station, which can be driven by actuators for smoothing and holding the material layers. This development of the device also has the advantage that after the switching of the blowing devices, the deposited piece of material of the material web remains fixed at the end of the deposition site. The storage station preferably performs a transverse movement between see two end positions, to be able to occupy a larger storage area of the storage station in band-shaped material webs. In this case, several zig-zag-shaped material layers are formed, which are laid next to each other and to one another in a pile. The method according to the invention will be explained in more detail below with reference to an embodiment of the device according to the invention with reference to the attached figures.
Es stellen dar: They show:
Fig. 1 schematisch eine Seitenansicht eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens Fig. 1 shows schematically a side view of an embodiment of the device according to the invention for carrying out the method according to the invention
Fig. 2 schematisch eine Draufsicht des Ausführungsbeispiels aus Fig. 1 Hg. 3 2 is a schematic plan view of the embodiment of FIG. 1 Hg. 3
und and
Fig. 4 schematisch das Ausführungsbeispiel von Fig. 1 in verschiedenen Fig. 4 shows schematically the embodiment of Fig. 1 in different
Betriebssituationen operating situations
In den Fig. 1 und 2 ist ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens zum Ablegen einer flexiblen Materialbahn in mehreren Ansichten dargestellt. Fig. 1 zeigt das Ausführungsbeispiel schematisch in einer Querschnitts- ansieht und in Fig. 2 ist das Ausführungsbeispiel in einer Draufsicht gezeigt. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für beide Figuren. 1 and 2 an embodiment of the device according to the invention for carrying out the method according to the invention for depositing a flexible material web is shown in several views. Fig. 1 shows the embodiment schematically in a cross-section views and in Fig. 2, the embodiment is shown in a plan view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
In diesem Ausführungsbeispiel ist die Ablagestelle zur Aufnahme einer Materialbahn 2 in mehrere abgelegte Materiallagen 16 durch eine Ablagestation 1 gebildet. Die Ablagestation 1 kann beispielsweise durch einen höhenverstellbaren Ablagetisch gebildet sein. Die Ablagestation 1 erstreckt sich über eine Ablegelänge zwischen zwei Enden 17.1 und 17.2. Die Ablegelänge der Ablagestation 1 ist hierbei deutlich größer als eine Ablegebreite, die durch zwei gegenüberliegende Längsseiten 18.1 und 18.2 der Ablagestation bestimmt sind. Es besteht jedoch auch die Möglichkeit, neben der Höhenverstellung auch einen querbeweglichen Ablagetisch zu verwenden. Damit lässt sich in der Ablagestation 1 eine überlagerte Changierbewegung quer zur Ablagerichtung ausführen, um damit größere Ablegebreiten und damit breite Stapel legen zu können. In this exemplary embodiment, the deposit location for receiving a material web 2 into a plurality of deposited material layers 16 is formed by a storage station 1. The storage station 1 can be formed for example by a height-adjustable storage table. The storage station 1 extends over a laying length between two ends 17.1 and 17.2. The laying length of the storage station 1 is in this case significantly larger than a depositing width, which are determined by two opposite longitudinal sides 18.1 and 18.2 of the storage station. However, it is also possible to use in addition to the height adjustment and a transversely movable storage table. This makes it possible to perform a superimposed traversing movement transversely to the storage direction in the storage station 1, so as to be able to place larger depositing widths and thus wide stacks.
Der Ablagestation 1 ist im mittleren Bereich eine stationäre Zuführeinrichtung 3 zugeordnet. Die Zuführeinrichtung 3 ist oberhalb der Ablagestation 1 gehalten und weist zwei Förderwalzen 4.1 und 4.2 auf, die als Walzenpaar einen Förder spalt bilden, in welchem die Materialbahn 2 zugeführt wird. Eine der Förderwalzen 4.1 oder 4.2 ist mit einem Antrieb verbunden. Zwischen der Ablagestation und der Zuführeinrichtung 3 ist eine Legeeinrichtung 5 vorgesehen, um die zugeführte Materialbahn 2 Zick-Zack- förmig zu mehreren Materiallagen in der Ablagestation abzulegen. Die Legeeinrichtung 5 weist zwei Blasvorrichtungen 6.1 und 6.2 auf, um ab- wechselnd eine in eine Ablagerichtung gerichtete Anblasung zu erzeugen. The storage station 1 is associated with a stationary feeder 3 in the central region. The feeder 3 is held above the storage station 1 and has two conveyor rollers 4.1 and 4.2, which form a conveyor pair as a pair of rollers, in which the material web 2 is supplied. One of the feed rollers 4.1 or 4.2 is connected to a drive. Between the storage station and the feed device 3, a laying device 5 is provided to deposit the supplied material web 2 in a zigzag fashion to form several layers of material in the depositing station. The laying device 5 has two blowing devices 6.1 and 6.2 in order to alternately generate a blowing directed in a depositing direction.
Wie aus der Fig. 1 hervorgeht, weist die Blasvorrichtung 6.1 insgesamt drei Luftdüsen 7.1, 7.2 und 7.3. Die Luftdüsen 7.1 bis 7.3 sind an der Längsseite 18.1 in dem Bereich zwischen der Zuführeinrichtung 3 und dem Ende 17.1 der Ablagestation 1 mit Abstand zueinander verteilt angeordnet. So ist eine erste Luftdüse 7.1 unmittelbar unterhalb der Förderwalzen 4.1 und 4.2 gehalten. Die zweite Luftdüse 7.2 und die dritte Luftdüse 7.3 sind an der Längsseite 18.1 bis kurz vor dem Ende 17.1 der Ablagestation 1 angeordnet. Jede der Luftdüsen 7.1, 7.2 und 7.3 weisen eine identische Blasrichtung auf, die in diesem Fall die Ablagerichtung zum Ende 17.1 der Ablagestation 1 hin definiert. Jeder Luftdüsen 7.1 bis 7.3 ist jeweils ein Steuerventil 9.1 bis 9.3 zugeordnet. Die Steuerventile 9.1 bis 9.3 sind über eine Steuerleitung mit einer Steuereinrichtung 11 verbunden. Über die Steuereinrichtung 11 lässt sich jedes der Steuerventile 9.1 bis 9.3 zum Aktivieren und Deaktivieren der Luftdüsen 7.1 bis 7.3 separat steuern. Hierzu sind die Luftdüsen 7.1 bis 7.3 mit einer hier nicht dargestellten Druckluftquelle verbunden. As is apparent from Fig. 1, the blowing device 6.1 a total of three air nozzles 7.1, 7.2 and 7.3. The air nozzles 7.1 to 7.3 are arranged distributed on the longitudinal side 18.1 in the area between the feed device 3 and the end 17.1 of the storage station 1 at a distance from each other. Thus, a first air nozzle 7.1 is held immediately below the conveyor rollers 4.1 and 4.2. The second air nozzle 7.2 and the third air nozzle 7.3 are arranged on the longitudinal side 18.1 until shortly before the end 17.1 of the storage station 1. Each of the air nozzles 7.1, 7.2 and 7.3 have an identical blowing direction, which in this case defines the storage direction towards the end 17.1 of the storage station 1. Each air nozzles 7.1 to 7.3 are each assigned a control valve 9.1 to 9.3. The control valves 9.1 to 9.3 are connected via a control line to a control device 11. Via the control device 11, each of the control valves 9.1 to 9.3 for activating and deactivating the air nozzles 7.1 to 7.3 can be controlled separately. For this purpose, the air nozzles 7.1 to 7.3 are connected to a compressed air source, not shown here.
Wie aus der Fig. 2 dargestellt, weißt die Blasvorrichtung 6.1 an der gegen- überliegenden Längsseite 18.2 der Ablagestation weitere Luftdüsen 7.4 bis 7.6 auf, die den Luftdüsen 7.1 bis 7.3 an der Längsseite 18.1 unmittelbar gegenüber liegen. Jedem der Luftdüsen 7.4 bis 7.6 ist ebenfalls ein Steuerventil 9.4 bis 9.6 zugeordnet. Die Steuerventile 9.4 bis 9.6 sind mit der Steuereinrichtung 11 gekoppelt, was an dieser Stelle nicht näher dar- gestellt ist. Die Luftdüsen 7.4 bis 7.6 haben ebenfalls eine Blasrichtung, die in die Ablagerichtung zum Ende 17.1 der Ablagestation 1 gerichtet ist. Die mit einer Druckquelle verbundenen Luftdüsen 7.1 bis 7.6 sind derart ausgerichtet, dass die Anblasung auf die zwischen den Luftdüsen geführte Materialbahn 2 gerichtet ist. Zur Führung der Materialbahn 2 werden die unmittelbar gegenüberliegenden Luftdüsen 7.1 und 7.4 oder 7.2 und 7.5 oder 7.3 und 7.6 synchron als ein Luftdüsenpaar aktiviert oder deaktiviert. Hierzu werden die betreffenden Steuerventile 9.1 und 9.4 synchron angesteuert. As shown in FIG. 2, the blowing device 6.1 has on the opposite longitudinal side 18.2 of the deposition station further air nozzles 7.4 to 7.6 which lie directly opposite the air nozzles 7.1 to 7.3 on the longitudinal side 18.1. Each of the air nozzles 7.4 to 7.6 is also associated with a control valve 9.4 to 9.6. The control valves 9.4 to 9.6 are coupled to the control device 11, which is not shown in detail at this point. The air nozzles 7.4 to 7.6 also have a blowing direction, which is directed in the direction of deposit to the end 17.1 of the storage station 1. The air nozzles 7.1 to 7.6 connected to a pressure source are aligned in such a way that the blowing is directed onto the material web 2 guided between the air nozzles. To guide the web 2 the directly opposite air nozzles 7.1 and 7.4 or 7.2 and 7.5 or 7.3 and 7.6 synchronously activated or deactivated as an air nozzle pair. For this purpose, the respective control valves 9.1 and 9.4 are controlled synchronously.
Wie aus der Fig. 1 dargestellt ist, ist eine zweite Blasvorrichtung 6.2 vorgesehen, um die Materialbahn 2 zum Ablegen in der entgegengerichteten Ablagerichtung zum gegenüberliegenden Ende 17.2 der Ablagestation 1 hingeführt. Hierzu weist die Blasvorrichtung 6.2 drei Luftdüsen 8.1 bis 8.3 auf, die an der Längsseite 18.1 verteilt angeordnet sind. Eine erste Luftdüse 8.1 ist zwischen den Luftdüsen 7.1 und 7.2 der ersten Blasvorrichtung 6.1 gehalten. Die Luftdüsen 8.2 und 8.3 sind an der Längsseite 18.2 zwischen dem Ende 17.2 und der Zuführeinrichtung 3 verteilt angeordnet. Jede der Luftdüsen 8.1 bis 8.3 weist eine zum Ende 17.2 gerichte- te Blasrichtung auf und bildet somit eine entgegengesetzte Anblasung zur Führung und Ablage der Materialbahn 2 zu dem gegenüberliegenden Ende 17.2 der Ablagestation 1. Jedes der Luftdüsen 8.1 bis 8.3 ist über ein separates Steuerventil 10.1 bis 10.3 mit einer Druckquelle verbunden. Die Steuerventile 10.1 bis 10.3 sind über Steuerleitungen mit der Steuerein- richtung 11 verbunden und unabhängig voneinander steuerbar. As shown in FIG. 1, a second blowing device 6.2 is provided in order to guide the material web 2 for laying in the opposite direction of deposition to the opposite end 17. 2 of the deposition station 1. For this purpose, the blowing device 6.2 three air nozzles 8.1 to 8.3, which are arranged distributed on the longitudinal side 18.1. A first air nozzle 8.1 is held between the air nozzles 7.1 and 7.2 of the first blowing device 6.1. The air nozzles 8.2 and 8.3 are arranged distributed on the longitudinal side 18.2 between the end 17.2 and the feeder 3. Each of the air nozzles 8.1 to 8.3 has a blow direction directed towards the end 17.2 and thus forms an opposite blow for guiding and depositing the material web 2 to the opposite end 17.2 of the deposition station 1. Each of the air nozzles 8.1 to 8.3 is connected via a separate control valve 10.1 to 10.3 connected to a pressure source. The control valves 10.1 to 10.3 are connected via control lines to the control device 11 and independently controllable.
Wie aus der Fig. 2 zu entnehmen ist, wird die zweiten Blasvorrichtung 6.2 ebenfalls durch weitere Luftdüsen 8.4 bis 8.6 auf der gegenüberliegenden Längsseite 18.2 der Ablagestation 1 gebildet. Die Luftdüsen 8.4 bis 8.6 bilden jeweils mit den Luftdüsen 8.1 bis 8.3 mehrere Luftdüsenpaare, die über ihre zugeordneten Steuerventile 10.1 bis 10.6 synchron aktiviert und deaktiviert werden. Auch hierbei sind die Luftdüsen 8.1 bis 8.6 an den Längsseiten 18.1 und 18.2 der Ablagestation derart ausgerichtet, dass die durch die Blasvorrichtung 6.2 erzeugt Anblasung unmittelbar auf die zwischen den Längsseiten 18.1 und 18.2 geführte Materialbahn 2 gerichtet ist. As can be seen from FIG. 2, the second blowing device 6.2 is likewise formed by further air nozzles 8.4 to 8.6 on the opposite longitudinal side 18.2 of the deposition station 1. The air nozzles 8.4 to 8.6 each form a plurality of pairs of air nozzles with the air nozzles 8.1 to 8.3, which are activated and deactivated synchronously via their associated control valves 10.1 to 10.6. Here too, the air nozzles 8.1 to 8.6 are aligned on the longitudinal sides 18.1 and 18.2 of the deposition station such that the blowing produced by the blowing device 6.2 is directed directly onto the material web 2 guided between the longitudinal sides 18.1 and 18.2.
Die Luftdüsen 7.1 bis 7.6 der ersten Blasvorrichtung 6.1 und die Luftdüsen 8.1 bis 8.6 der zweiten Blasvorrichtung 6.2 werden bevorzugt durch eine gemeinsame Druckluftquelle versorgt. Es besteht jedoch auch die Möglichkeit, dass jeder Blasvorrichtung 6.1 und 6.2 separate Druckluftquellen zugeordnet sind. Wie aus der Darstellung in Fig. 1 hervorgeht, ist die Steuereinrichtung 11 mit einer Sensoreinrichtung 14 gekoppelt. Die Sensoreinrichtung 14 wird in diesem Ausführungsbeispiel durch einen Drehzahlsensor 15 gebildet, der der angetriebenen Förderwalze 4.1 zugeordnet ist. Durch den Drehzahlsensor 15 ist die Antriebsdrehzahl der Förderwalze 4.1 bzw. die Um- fangsgeschwindigkeit der Förderwalze 4.1 erfasst und der Steuereinrichtung 11 übermittelt. Innerhalb der Steuereinrichtung 11 lässt sich somit eine zugeführte Materiallänge der Materialbahn 2 aus der aktuellen Zuführgeschwindigkeit der Materialbahn 2 bestimmen, so dass über die Länge der in den Zwischenraum zwischen der Zuführeinrichtung 3 und Ablagestation 1 zugeführten Materialbahn 2 deren Lage bestimmbar ist. Hieraus lässt sich dann eine Zeitfolge ableiten, um die Aktivierung und Deaktivierung der einzelnen Luftdüsen 7.1 bis 7.6 und 87.1 bis 8.6 der Blasvorrichtungen 6.1 und 6.2 zu steuern. Um die erzeugten Materiallagen 16 an den Enden 17.1 und 17.2 der Ablagestation 1 zu glätten und zu fixieren, sind jedem Ende 17.1 und 17.2 jeweils ein Niederhalter 12.1 und 12.2 zugeordnet. Die Niederhalter 12.1 und 12.2 sind plattenförmig ausgebildet und durch einen Aktor 13.1 und 13.2 beweglich angetrieben. The air nozzles 7.1 to 7.6 of the first blowing device 6.1 and the air nozzles 8.1 to 8.6 of the second blowing device 6.2 are preferred supplies a common compressed air source. However, there is also the possibility that each blowing device 6.1 and 6.2 are assigned separate sources of compressed air. As can be seen from the illustration in FIG. 1, the control device 11 is coupled to a sensor device 14. The sensor device 14 is formed in this embodiment by a speed sensor 15 which is assigned to the driven conveyor roller 4.1. By the speed sensor 15, the drive speed of the feed roller 4.1 or the peripheral speed of the feed roller 4.1 is detected and transmitted to the control device 11. Within the control device 11, it is thus possible to determine an added material length of the material web 2 from the actual feed speed of the material web 2, so that its position can be determined over the length of the material web 2 fed into the intermediate space between the feed device 3 and the depositing station 1. From this, a time sequence can then be derived in order to control the activation and deactivation of the individual air nozzles 7.1 to 7.6 and 87.1 to 8.6 of the blowing devices 6.1 and 6.2. In order to smooth and fix the material layers 16 produced at the ends 17.1 and 17.2 of the storage station 1, each of the ends 17.1 and 17.2 is assigned a hold-down 12.1 and 12.2. The hold-down 12.1 and 12.2 are plate-shaped and driven by an actuator 13.1 and 13.2 movable.
Zur Erläuterung des Verfahrens sowie der Funktion der Vorrichtung wird nachfolgend zusätzlich zu den Figuren 3 und 4 Bezug genommen. In den Fig. 3 und 4 ist das Ausführungsbeispiel aus Fig. 1 in unterschiedlichen Betriebszuständen zur Ablage der Materialbahn 2 gezeigt. To explain the method as well as the function of the device, reference is made below in addition to the figures 3 and 4. 3 and 4, the embodiment of FIG. 1 in different operating states for storing the material web 2 is shown.
Zunächst wird wie in Fig. 1 dargestellt ist, die Materialbahn 2 durch die Zuführeinrichtung 3 kontinuierlich der Ablagestation 1 zugeführt. Um die Materialbahn 2 in eine erste Ablagerichtung zu führen, wird die erste Luftdüse 7.1 bzw. das erste Luftdüsenpaar 7.1 und 7.4 über die Steuer- einrichtung 11 aktiviert. Die erzeugte Anblasung ist auf die Materialbahn 2 gerichtet und führt diese in eine erste Ablagerichtung zu dem Ende 17.1. Mit fortschreitender Zuführung legt sich die Materialbahn 2 auf die Ablagestation 1 bzw. die oberste Materiallage 16 ab. Sobald die Material- Schlaufe der Materialbahn 2 die benachbarte Luftdüse 7.2 bzw. das benachbarte Luftdüsenpaar 7.2 und 7.5 erreicht hat, werden diese aktiviert. Die Blaswirkung der ersten Blasvorrichtung 6.1 bleibt erhalten und führt die Materialbahn 2 kontinuierlich bis zum Ende 17.1 der Ablagestation 1. hi Fig. 3 ist der Zustand gezeigt, bei welchem die letzten dem Ablageende 17.1 zugeordnete Luftdüse 7.3 bzw. das Luftdüsenpaar 7.3 und 7.6 der ersten Blasvorrichtung 6.1 aktiviert ist. Die Luftdüsen 7.1, 7.2, 7.4 und 7.5 der Blasvorrichtung 6.1 sind zwischenzeitlich deaktiviert. First, as shown in FIG. 1, the web 2 is continuously supplied to the tray station 1 by the feeder 3. In order to guide the material web 2 in a first depositing direction, the first air nozzle 7.1 or the first pair of air nozzles 7.1 and 7.4 is connected via the control device 11 is activated. The generated blow is directed to the web 2 and leads them in a first storage direction to the end of 17.1. As the feed progresses, the material web 2 deposits on the deposition station 1 or the topmost material layer 16. As soon as the material loop of the material web 2 has reached the adjacent air nozzle 7.2 or the adjacent air nozzle pair 7.2 and 7.5, these are activated. The blowing action of the first blowing device 6.1 is maintained and guides the material web 2 continuously to the end 17.1 of the deposition station 1. hi Fig. 3, the state is shown, in which the last the storage end 17.1 associated air nozzle 7.3 and the air nozzle pair 7.3 and 7.6 of the first Blowing device 6.1 is activated. The air nozzles 7.1, 7.2, 7.4 and 7.5 of the blowing device 6.1 have been deactivated in the meantime.
Am Ende 17.1 der Ablagestation 1 wird die Materialbahn 2 durch den Niederhalter 12.1 gefaltet und geglättet, so dass eine neue Materiallage 16 durch Führung der Materialbahn 2 in die gegenüberliegende Ablagerichtung erzeugt werden kann. Die erste Blasvorrichtung 6.1 wird deaktiviert, so dass sich die Materialbahn 2 in dem Abschnitt zwischen dem EndeAt the end 17.1 of the storage station 1, the material web 2 is folded and smoothed by the holding-down device 12.1, so that a new material layer 16 can be produced by guiding the material web 2 in the opposite depositing direction. The first blowing device 6.1 is deactivated, so that the material web 2 in the section between the end
17.1 der Ablagestation und der Zuführeinrichtung 3 selbsttätig ablegt. Um bei fortschreitender Zuführung die Materialbahn 2 in die gegenüberliegende Ablagerichtung zum gegenüberliegenden Ende 17.2 zu führen, wir die erste Luftdüse 8.1 bzw. das erste Luftdüsenpaar 8.1 und 8.4 der zweiten Blasvorrichtung 6.2 aktiviert. Nun wird eine zweite Anblasung in eine gegenüberliegende Ablagerichtung zum gegenüberliegenden Ende 17.2 erzeugt. Dieser Vorgang ist in Fig. 4 dargestellt. Nun ist die Blasvorrichtung 6.2 aktiviert, um die Materialbahn zum gegenüberliegenden Ende17.1 of the storage station and the feeder 3 automatically stores. In order to guide the material web 2 in the opposite storage direction to the opposite end 17.2 as the feed progresses, we activate the first air nozzle 8.1 or the first air nozzle pair 8.1 and 8.4 of the second blowing device 6.2. Now, a second blowing is generated in an opposite storage direction to the opposite end 17.2. This process is shown in FIG. 4. Now the blowing device 6.2 is activated to move the web to the opposite end
17.2 zu führen. Die Luftdüsen 8.1 bis 8.6 bzw. die Luftdüsenpaare der Blasvorrichtung 6.2 werden ebenfalls nach einer Zeitfolge aktiviert, die in Abhängigkeit von der Zuführgeschwindigkeit der Materialbahn 2 durch die Steuereinrichtung 11 vorgeben wird. Die Materialbahn 2 legt sich zu einer neuen Materiallage, und wird an dem gegenüberliegenden Ende 17.2 durch den zweiten Niederhalter 12.2 gefaltet, geglättet und fixiert. Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung sind nicht auf das dargestellte und beschriebene Ausführungsbeispiel begrenzt. Grundsätzlich ist die Anzahl der Luftdüsen zur Führung der Materialbahn in eine Ablagerichtung insbesondere von der Länge der Ab- lagestrecke abhängig. So können je nach Ablagestation weitere Luftdüsen ergänzt werden. Zudem besteht auch die Möglichkeit, die Blasvorrichtung bei nicht mittiger Anordnung der Zuführeinrichtung mit unterschiedlicher Anzahl von Luftdüsen auszuführen. So könnte beispielsweise die Zuführung der Materialbahn auch an einem Ende der Ablagestation erfol- gen, so dass nur eine der Blasvorrichtungen durch mehrere an den Längsseiten verteilte Luftdüsen gebildet wäre. 17.2. The air nozzles 8.1 to 8.6 or the air nozzle pairs of the blowing device 6.2 are also activated according to a time sequence which is predetermined by the control device 11 as a function of the feed speed of the material web 2. The material web 2 settles to a new material layer, and is folded at the opposite end 17.2 by the second hold-down 12.2, smoothed and fixed. The inventive method and the device according to the invention are not limited to the illustrated and described embodiment. In principle, the number of air nozzles for guiding the material web in a depositing direction depends in particular on the length of the laying line. Depending on the storage station, additional air nozzles can be added. In addition, it is also possible to carry out the blowing device with non-central arrangement of the feeder with a different number of air nozzles. Thus, for example, the feeding of the material web could also take place at one end of the deposition station, so that only one of the blowing devices would be formed by a plurality of air nozzles distributed on the longitudinal sides.
Zur Aktivierung der Luftdüsen wird der Steuereinrichtung bevorzugt eine zeitliche Einschaltfolge vorgegeben, die auf eine bestimmte Zuführge- schwindigkeit der Materialbahn abgestimmt ist. So lassen sich auch ohne kontinuierliche Überwachung der Zuführgeschwindigkeit Festeinstellungen vornehmen, die eine sichere Ablage der Materialbahn der Ablagestation gewährleisten. Bei wechselnden Zuführgeschwindigkeiten besteht jedoch auch die Möglichkeit, dass die Sensoreinrichtung durch Lagesensoren gebildet wird, die entlang einer der Längsseiten verteilt angeordnet sind. Bevorzugt wird jedoch die Verfahrensvariante ausgeführt, bei welcher die Zuführge- schwindigkeit über einen Drehzahlsensor überwacht wird. Damit können die Einschaltfolgen zur Aktivierung und Deaktivierung der Luftdüsen der Blasvorrichtungen kontrolliert erfolgen. In order to activate the air nozzles, the control device is preferably given a chronological start-up sequence that is tuned to a specific feed speed of the material web. Thus, even without continuous monitoring of the feed rate make fixed settings that ensure safe storage of the web of the storage station. With changing feed rates, however, there is also the possibility that the sensor device is formed by position sensors which are arranged distributed along one of the longitudinal sides. Preferably, however, the method variant is carried out, in which the feed rate is monitored via a speed sensor. Thus, the power-on sequences for activating and deactivating the air nozzles of the blowing devices can be controlled.
Darüberhinaus sind die Ablagestationen in den gezeigten Ausführungsbeispielen vorzugsweise mit einem Antrieb gekoppelt, welcher eine zur Aufnahme der Materiallagen quergerichtete Bewegung zwischen zwei Endlagen ausführt. Damit können auch vorteilhaft quadratische Materialstapel gelegt werden, bei welchen die Ablagelänge gleich einer Ablagebreite ist. Bezugszeichenliste Moreover, in the exemplary embodiments shown, the storage stations are preferably coupled to a drive, which executes a movement between two end positions transversely directed for receiving the material layers. This can also be advantageous square material stacks are laid in which the storage length is equal to a storage width. LIST OF REFERENCE NUMBERS
I Ablagestation I storage station
2 Materialbahn 2 material web
3 Zuführeinrichtung  3 feeder
4.1, 4.2 Förderwalzen  4.1, 4.2 Conveyor rollers
5 Legeeinrichtung  5 laying device
6.1, 6.2 Blasvorrichtung  6.1, 6.2 Blowing device
7.1 ... 7.6 Luftdüse erste Blasvorrichtung7.1 ... 7.6 Air nozzle first blowing device
8.1 ... 8.6 Luftdüse zweite Blasvorrichtung8.1 ... 8.6 Air nozzle second blowing device
9.1 ... 9.6 Steuerventil erste Blasvorrichtung9.1 ... 9.6 Control valve first blowing device
10.1 ... 10.6 Steuerventil zweite Blasvorrichtung10.1 ... 10.6 Control valve second blowing device
I 1 Steuereinrichtung I 1 control device
12.1, 12.2 Niederhalter 12.1, 12.2 Downholder
13.1, 13.2 Aktor  13.1, 13.2 Actuator
14 Sensoreinrichtung  14 sensor device
15 Drehzahlsensor  15 speed sensor
16 Materiallagen  16 material layers
17.1, 17.2 Ende der Ablagestation 17.1, 17.2 End of the storage station
18.1, 18.2 Längsseite der Ablagestation  18.1, 18.2 Longitudinal side of the storage station

Claims

Patentansprüche claims
1. Verfahren zum Ablegen einer flexiblen Mateπalbahn in meh- rere übereinander liegende Materiallagen, bei welchem die1. A method for depositing a flexible Mateπalbahn in several superposed layers of material, wherein the
Mateπalbahn einer Ablagestelle zugeführt wird, bei welchem die Materialbahn durch eine erste Anblasung m eine erste Ablagerichtung zu einem Ende der Ablagestelle und durch eine zweite Anblasung m eine zweite Ablagerichtung zu einem ge- genuberliegenden Ende der Ablagestelle hm- und hergeführt wird und bei welchem die Anblasungen durch mehrere abwechselnd aktivierte Luftdusen erzeugt werden, Mateπalbahn is supplied to a storage location, in which the material web by a first An blowing m a first storage direction to one end of the storage location and by a second blowing m a second storage direction to a genüberliegenden end of the storage place hm- and is led forth and in which the Anblasungen be generated by several alternately activated Luftdusen,
dadurch gekennzeichnet, dass  characterized in that
zumindest eine der Anblasungen durch mehrere nacheman- der aktivierte Luftdusen erzeugt werden, die m eine der Ablagerichtungen blasen.  at least one of the bubbles is generated by a plurality of subsequently activated air nozzles, which blow one of the deposit directions.
2. Verfahren nach Anspruch 1, 2. The method according to claim 1,
dadurch gekennzeichnet, dass  characterized in that
die Materialbahn m einem mittleren Bereich der Ablagestelle zugeführt wird und dass die entgegengerichteten Anblasungen ebenfalls durch mehrere nachemander aktivierte Luftdusen erzeugt werden, die m die entgegengerichtete Ablagerichtung blasen  the material web m is supplied to a central region of the deposition site and that the opposing blow-ups are likewise produced by a plurality of mutually activated air nozzles which blow the oppositely directed deposition direction m
3 Verfahren nach Anspruch 1 oder 2, 3 method according to claim 1 or 2,
dadurch gekennzeichnet, dass  characterized in that
die Luftdusen zur Erzeugung emer der Anblasungen in Abhängigkeit von einer Lage der Materialbahn zwischen den En- den der Ablagestelle aktiviert werden.  the air ducts are activated to produce the blow-ups as a function of a position of the material web between the ends of the deposit location.
4. Verfahren nach Anspruch 3, 4. The method according to claim 3,
dadurch gekennzeichnet, dass die Luftdüsen in Abhängigkeit einer zeitlichen Einschaltfolge aktiviert werden, die in Abhängigkeit von einer Zuführgeschwindigkeit der Materialbahn bestimmt ist. characterized in that the air nozzles are activated in response to a temporal switch-on, which is determined in response to a feed rate of the web.
5. Verfahren nach Anspruch 4, 5. The method according to claim 4,
dadurch gekennzeichnet, dass  characterized in that
die Zuführgeschwindigkeit der Materialbahn aus einer Umfangsgeschwindigkeit einer Förderwalze erfasst wird, durch welche Förderwalze die Materialbahn zugeführt wird.  the feeding speed of the material web is detected from a peripheral speed of a conveying roller, through which conveying roller the material web is fed.
6. Verfahren nach einem der Ansprüche 1 bis 5, 6. The method according to any one of claims 1 to 5,
dadurch gekennzeichnet, dass  characterized in that
die Anblasungen durch mehrere sich an beiden Längsseiten der Ablagestelle gegenüberliegende Luftdüsen erzeugt wer- den.  the bubbles are produced by a plurality of air nozzles which are opposite each other on both longitudinal sides of the deposit location.
7. Verfahren nach Anspruch 6, 7. The method according to claim 6,
dadurch gekennzeichnet, dass  characterized in that
die sich unmittelbar an den Längsseiten gegenüberhegende Luftdüsen ein Luftdüsenpaar bilden und synchron aktiviert und deaktiviert werden.  the air nozzles directly opposite to the longitudinal sides form an air nozzle pair and are activated and deactivated synchronously.
8. Verfahren nach einem der Ansprüche 1 bis 7, 8. The method according to any one of claims 1 to 7,
dadurch gekennzeichnet, dass  characterized in that
die Materiallagen an den Enden der Ablagestelle durch zwei bewegliche Niederhalter geglättet und gehalten werden.  the material layers at the ends of the deposit are smoothed and held by two movable hold-downs.
9. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 8, mit einer Ablagestation (1) zur Auf- nähme mehrerer übereinander liegender Materiallagen (16), mit einer der Ablagestation (1) zugeordneten Zuführeinrichtung (3) zur Zuführung einer Materialbahn (2) und mit einer Legeeinrichtung (5) zum Ablegen der Materialbahn (2) in der Ablagestation (1), wobei die Legeeinrichtung (5) zwei Blasvor- richtungen (6.1, 6.2) mit mehreren Luftdüsen (9.1, 10.1) aufweist, die abwechselnd eine erste Anblasung in eine erste Ablagerichtung und eine zweite Anblasung in eine zweite entgegengesetzte Ablagerichtung erzeugen, 9. A device for carrying out the method according to one of claims 1 to 8, with a storage station (1) for receiving several superimposed layers of material (16), with one of the storage station (1) associated with feeding device (3) for feeding a material web ( 2) and with a laying device (5) for depositing the material web (2) in the storage station (1), wherein the laying device (5) has two blower having a plurality of air nozzles (9.1, 10.1), which alternately produce a first blowing in a first depositing direction and a second blowing in a second opposite depositing direction,
dadurch gekennzeichnet, dass  characterized in that
zumindest eine der Blasvorrichtungen (6.1) mehrere entlang einer der Ablagerichtungen angeordneter Luftdüsen (7.1 - 7.3) aufweist, die jeweils in Ablagerichtung ausgerichtet und nacheinander aktivierbar sind.  at least one of the blowing devices (6.1) has a plurality along one of the depository seals arranged air nozzles (7.1 - 7.3), each aligned in the depositing direction and can be activated successively.
10. Vorrichtung nach Anspruch 9, 10. Apparatus according to claim 9,
dadurch gekennzeichnet, dass  characterized in that
die Zuführeinrichtung (3) in einem mittleren Bereich der Ablagestation (1) angeordnet ist und dass die zweite Blasvor- richtung (6.2) mehrere entlang der zweiten Ablagerichtungen angeordneter Luftdüsen (8.1 - 8.3) aufweist, die jeweils in Ablagerichtung ausgerichtet und nacheinander aktivierbar sind.  the feeding device (3) is arranged in a middle region of the depositing station (1) and that the second blowing device (6.2) has a plurality of air nozzles (8.1-8.3) arranged along the second depositing directions, which are each aligned in the depositing direction and can be activated successively.
11. Vorrichtung nach einem der Ansprüche 9 oder 10, 11. Device according to one of claims 9 or 10,
dadurch gekennzeichnet, dass  characterized in that
den Luftdüsen (7.1 - 7.3) jeweils ein Steuerventil (9.1 - 9.3) zugeordnet ist, die mit einer Steuereinrichtung (11) verbunden sind und unabhängig voneinander zur Aktivierung der Luftdüsen (7.1 - 7.3) steuerbar sind.  the air nozzles (7.1 - 7.3) is associated with a respective control valve (9.1 - 9.3), which are connected to a control device (11) and independently of one another for the activation of the air nozzles (7.1 - 7.3) are controllable.
12. Vorrichtung nach Anspruch 11, 12. Device according to claim 11,
dadurch gekennzeichnet, dass  characterized in that
die Steuereinrichtung (11) mit einer Sensoreinrichtung (14) verbunden ist, durch welche eine momentane Lage der Mate- rialbahn (2) zwischen den Enden (17.1, 17.2) der Ablagestation (1) direkt oder indirekt erfassbar ist.  the control device (11) is connected to a sensor device (14), by means of which a current position of the material web (2) between the ends (17.1, 17.2) of the deposition station (1) can be detected directly or indirectly.
13. Vorrichtung nach Anspruch 12, 13. Device according to claim 12,
dadurch gekennzeichnet, dass die Sensoreinrichtung (14) einen Drehzahlsensor (15) aufweist, welcher zur Erfassung der Umfangsgeschwindigkeit einer Förderwalze (4.1) der Zufuhreinrichtung (3) zugeordnet ist. characterized in that the sensor device (14) has a rotational speed sensor (15) which is assigned to the supply device (3) for detecting the peripheral speed of a conveyor roller (4.1).
14. Vorrichtung nach einem der Ansprüche 9 bis 13, 14. Device according to one of claims 9 to 13,
dadurch gekennzeichnet, dass  characterized in that
die Zufuhreinrichtung (3) durch ein Walzenpaar (4.1, 4.2) gebildet, deren Förderwalzen (4.1, 4.2) sich in einen Förderspalt gegenüberliegen, wobei zumindest eine der Förderwalzen the feed device (3) is formed by a pair of rollers (4.1, 4.2) whose conveyor rollers (4.1, 4.2) are opposite one another in a conveying gap, wherein at least one of the conveyor rollers
(4.1) antreibbar ist. (4.1) is drivable.
15. Vorrichtung nach einem der Ansprüche 9 bis 14, 15. Device according to one of claims 9 to 14,
dadurch gekennzeichnet, dass  characterized in that
zumindest eine der Blasvorrichtungen (6.1, 6.2) mehrere an beiden Längsseiten (18.1, 18.2) der Ablagestation (1) verteilt angeordnete Luftdüsen (7.1, 7.6, 8.1 - 8.6) aufweisen.  at least one of the blowing devices (6.1, 6.2) has a plurality of air nozzles (7.1, 7.6, 8.1 - 8.6) arranged distributed on both longitudinal sides (18.1, 18.2) of the deposition station (1).
16. Vorrichtung nach Anspruch 15, 16. The device according to claim 15,
dadurch gekennzeichnet, dass  characterized in that
die sich an den Längsseiten (18.1, 18.2) der Ablagestation (1) unmittelbar gegenüberliegenden Luftdüsen (7.1, 7.4, 8.1, 8.4) ein Luftdüsenpaar bilden, deren zugeordneten Steuerventile (9.1, 9.4, 10.1, 10.4) synchron steuerbar sind.  the air nozzles (7.1, 7.4, 8.1, 8.4) directly opposite the longitudinal sides (18.1, 18.2) of the storage station (1) form an air nozzle pair whose associated control valves (9.1, 9.4, 10.1, 10.4) are synchronously controllable.
17. Vorrichtung nach einem der Ansprüche 9 bis 16, 17. Device according to one of claims 9 to 16,
dadurch gekennzeichnet, dass  characterized in that
an jedem Ende (17.1, 17.2) der Ablagestation (1) ein separater beweglicher Niederhalter (12.1, 12.2) angeordnet ist, welche über Aktoren (13.1, 13.2) zum Glätten und Halten der Materiallagen (16) antreibbar ist.  a separate movable hold-down device (12.1, 12.2) is arranged at each end (17.1, 17.2) of the storage station (1), which can be driven via actuators (13.1, 13.2) for smoothing and holding the material layers (16).
EP10740642.3A 2009-08-19 2010-08-05 Method and device for laying down a flexible material web Not-in-force EP2467324B1 (en)

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DK2467324T3 (en) 2014-04-07
EP2467324B1 (en) 2014-01-08

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