EP1816243B1 - Device for laying a nonwoven - Google Patents
Device for laying a nonwoven Download PDFInfo
- Publication number
- EP1816243B1 EP1816243B1 EP06002075A EP06002075A EP1816243B1 EP 1816243 B1 EP1816243 B1 EP 1816243B1 EP 06002075 A EP06002075 A EP 06002075A EP 06002075 A EP06002075 A EP 06002075A EP 1816243 B1 EP1816243 B1 EP 1816243B1
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- EP
- European Patent Office
- Prior art keywords
- conveyor belt
- carriage
- fibrous web
- belt
- laying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G25/00—Lap-forming devices not integral with machines specified above
Definitions
- the present invention relates to a device for laying a fleece from a card web, comprising a transversely to a delivery conveyor belt above the same movable laying carriage and a superstructure and several Flortransportb selected for transporting the card web over the superstructure and the laying carriage in a laying carriage formed on the discharge gap for storage the flag web on the delivery conveyor.
- a device of this kind is from the EP 0 865 521 B1 known.
- the pile recording has a tape inlet of the transport and laying belts (hereinafter Flortransportb stands) having an obliquely downwardly inclined inlet section with two adjacent running belt sections of Flortransportb stands.
- the band sections which are brought together at the entrance to the strip inlet, form a narrow inlet slot adapted to the board thickness and run in the inlet section substantially parallel or at an acute angle to each other and close to each other in such a way that they guide or cover the pile on both sides in the inlet section.
- both pile conveyor belts are passed through the superstructure and through the laying carriage.
- the previously known constructions have a relatively complicated course of their pile conveyor belts, in particular on the superstructure, where the one of the web conveyor supporting pile conveyor belts wraps around a deflection roller delimiting the inlet section at its lower end by more than 90 °.
- the arrangement is further complicated by the fact that the second pile conveyor belt is also passed through the superstructure, according to the construction EP 0 865 521 B1 even such that it is the first pile conveyor belt Accompanied in the obliquely downwardly facing inlet section at close range.
- the invention has for its object to provide a device of the type mentioned above, which has a simpler, yet reliable guidance of the belts involved in card web transport and pile storage. This object is achieved by a nonwoven, the features of which are specified in claim 1 and in claim 3. Advantageous developments of the invention are the subject of the dependent claims.
- a guide means facing the obliquely downwardly inclined portion of the first Flortransportbandes and forms an inlet gap with this can consist of a series of closely spaced rollers, which are preferably motor-driven individually or as a group, but which can also be driven by mechanical coupling with the guide rollers of the uppercarriage.
- the rollers are optionally interlocking, driven disc rollers.
- the guide device consists of an endlessly revolving in the superstructure, connected to a separate drive belt, according to a fourth variant of a driven, the lower guide roller of the upper carriage opposite roller and according to a fifth variant of two driven rollers, the upper and facing lower guide rollers in the upper carriage at a close distance.
- the guide device is a smooth guide plate opposite the first pile conveyor belt.
- the guide belt of the third variant which revolves endlessly in the superstructure, can be designed as a screen belt in a preferred embodiment.
- the rollers of the guide device may be screen rollers. When using disc rollers, these offer the desired air leakage function from home.
- the first pile conveyor belt may be a screen belt.
- the derivation of air from the pile when pressing the pile on the first Flortransportband is favored.
- This construction is particularly suitable for the first embodiment of the invention, since in her the first Flortransportband only transport function, but not at the same time masking tape, because a masking tape should be smooth if possible.
- the formation of this pile conveyor belt as a sieve belt also makes it possible in a simple manner to exercise a controlled stretching function with the fleece layer. Details will be explained later.
- both the first pile conveyor belt and the endless belt circulating in the superstructure to be designed as screen belts.
- the combination of a wire belt as the first belt conveyor belt and screen rollers in the superstructure is also possible.
- the basic variants of the invention which fall under the common concept of the invention differ from one another in that in the first variant the first pile conveyor belt runs exclusively through the superstructure, but not also through the laying carriage.
- the second pile conveyor belt which the flag web on its way between the Supporting the uppercarriage and the laying carriage in a horizontal section and leading into the discharge gap takes over a covering function for the web deposited on the delivery conveyor belt beyond the delivery gap.
- This band section is led back beyond the delivery conveyor belt via a transversely to the delivery conveyor belt movably guided tensioning carriage to the laying carriage.
- a second band can be passed, which assumes a covering function on the side facing away from the second Flortransportband side of the laying carriage.
- This separate cover strip is at the same level as the covering function, taking the laying carriage leaving section of the second Flortransportbandes.
- the separate cover strip is guided to a tensioning roller and from this back to the laying carriage, said tensioning roller can be stored in the same clamping carriage, as the tensioning roller of the second Flortransportbandes, because the translational instantaneous movements of the two tensioning rollers in the operation of the batt are synchronous with each other.
- This clamping carriage is preferably arranged to save space below the Abarritransportbandes and therefore runs in opposite direction to the movement of the laying carriage.
- the masking tapes are preferably smooth so as not to disturb the laid web when touched.
- the first pile conveyor belt is passed not only through the superstructure, but also through the laying carriage, comparable to what is described in said prior art.
- a fleece layer of this type thus has only two circumferential bands, of which only one is passed through the superstructure.
- the two pile conveyor belts are preferably smooth.
- the first pile conveyor belt together with the second pile conveyor belt can be passed through the laying carriage up to the discharge gap above the delivery conveyor belt, provided that the friction between the belts and the intermediate conveyor belt on the guide roller which is common in this case in the laying carriage is not harmful to the card web.
- the first pile conveyor belt in the superstructure over other, there mounted guide rollers are guided to separate it before the Ablegespalt of the card web to reunite with him immediately before reaching the Ablegespalts as already described in the prior art itself.
- Fig. 1 shows a schematic view of a first embodiment of the invention in a frontally with respect to the delivery conveyor belt view.
- an endlessly circulating delivery conveyor belt 1 which is intended to carry away a laid nonwoven in a direction perpendicular to the plane of the transport direction.
- an upper guide roller 2 is shown in phantom.
- a laying carriage 3 on rails (not shown) moved back and forth.
- two guide rollers 4 and 5 are freely rotatably mounted.
- the first guide roller 4 is of a first cover 6 teilumschlept having a lower strand, which runs at a close distance above the delivery conveyor belt 1 to a driven guide roller 7, via a further stationary guide roller 8 and to a guide roller 9 which is rotatably mounted in a first tensioning carriage 10, which is below the delivery conveyor belt. 1 transversely to this on rails (not shown) is movable. Of the mounted in the tensioning carriage 10 guide roller 9 said cover strip 6 extends over two further stationary guide rollers 8 and 8a back to the laying carriage 3.
- the driven guide roller 7 is coupled to a motor (not shown) and is intended to cover the first cover 6 in to power different directions.
- the second cover strip 11 has a lower strand, which runs at a close distance above the delivery conveyor belt 1.
- the driven deflection roller 12 is coupled to a motor (not shown) and is intended to drive the second cover band 11 in different directions.
- a chain or a toothed belt 15 is mounted, which via a with a motor (not shown) connected to the drive gear 16 and a guide wheel 17 runs. With the aid of these drive devices, the laying carriage 3 can be moved back and forth across the delivery conveyor belt 1 transversely to its transport direction.
- an upper carriage 18 is mounted transversely to the transport direction of the delivery conveyor belt 1 on rails (not shown) movable.
- the upper carriage has an upper guide roller 19 and a lower guide roller 20, which are laterally offset from each other.
- a pile conveyor belt 21 which is hereinafter referred to as first pile conveyor belt.
- the first pile conveyor belt 21 is inclined obliquely downwards. Starting from the lower deflection roller 20 in the uppercarriage 18, the first belt conveyor belt 21 runs parallel to the upper run of the two cover belts 6 and 11.
- stationary guide roller 22 It is guided over a stationary in the machine frame (hereinafter "stationary") guide roller 22 and from there via a mounted in a second tensioning carriage 23 guide roller 24 to then run over a stationary, motor-driven guide roller 25 before it reached the upper carriage 18 again.
- the uppercarriage 18 and the second tensioning carriage 23 are connected to each other via a chain or a toothed belt 26 which runs via a drive gearwheel 27 (not shown) connected to a motor and a deflecting wheel 28 which are supported in the machine frame.
- Fig. 1 an obliquely upwardly extending feed belt 29 which feeds a pile belt (not shown) to be laid to the first pile transport belt 21.
- the first pile conveyor belt 21 and the second cover strip 11 are guided parallel to each other in close proximity, so that a guided from the first Flortransportband 21 card web in the said area between the uppercarriage and the laying carriage of the first Flortransportband 21 and the second cover tape 11 is sandwiched.
- the card web is supported by said cover strip 11, which is why this is also referred to as a second pile conveyor belt in the context of the present invention.
- a schematically indicated suction device 40 is provided in the superstructure, which faces the first pile conveyor belt 21 in the region of the inlet section on the side facing away from the pile support surface.
- a vacuum built up by the suction device 40 helps to keep the card web on the first pile conveyor belt 21, provided that this is designed as a wire belt.
- the use of a wire belt as the first pile conveyor belt 21 is particularly advantageous, since it is possible with his help, in the area between the superstructure and the laying carriage, where two bands are guided in parallel and sandwich the flag web between them, to squeeze the air out of the card web without fibers fading on the side and the fiber orientation is disturbed by the outflowing air.
- the first tensioning carriage 10 executes an opposite movement because the loop lengths of the cover strips 6 and 11 are constant. Furthermore, the superstructure lead 18 and its associated second tensioning car 23 in operation a mutually opposite movement, because they are connected by the chain or the timing belt 26 frictionally with each other. The second tensioning carriage 23 is necessary to keep the loop length of the first pile conveyor belt 21 constant.
- the kinematics of superstructure 18 and carriage 3 corresponds perfectly to those in EP 0 865 521 B1 is described.
- the movements of laying carriage 3 and upper carriage 18 are coordinated so that when feeding the card web via the feed belt 29 at a uniform speed controlled storage of the card web without stretching or compressions can take place within the illustrated web laying on the delivery conveyor belt 1. This also takes into account the fact that the laying carriage 3 in the region of its reversal position must be braked to a standstill and accelerated again.
- the movement of the superstructure can be controlled by independent control 18 and carriage 3 are made in a known manner a Flurbahnpuff rĂŠelle within the batt.
- the buffering required to compensate for the wobbling carriage speed is superimposed on a second buffering required to compensate for the fluctuating pile infeed speed.
- these bufferings can possibly be in phase opposition to one another, ie cancel each other completely or partially
- the first pile conveyor belt 21 is designed as a screen belt, a specific stretching function can also be exerted with the lapper. If two guide rollers are provided with independently controllable motor drives of the guide rollers of the cover strips 6 and 11, which in Fig. 1 is expressed by the graphical representation of the guide rollers 7 and 8a and 12 and 13a, it can be achieved that the speed of the cover strips 6 and 11 can be made independent of the movement speed of the laying carriage 3.
- the drives of the masking tapes are controlled by means of the drive rollers 7 and 12 so that the covering strip lying in the direction of movement of the laying carriage 3 simply lays on the laid fleece and this does not move, while in the direction of movement of the laying carriage 3 front cover strip moves with respect to the speed of movement of the laying carriage 3, double speed forward.
- the circumferential speed of the deflection roller 5 in the laying carriage, by which the cover belt 11 which transports the card web together with the first pile transport belt 21, is as fast as the speed between the laying carriage 3 and the first pile transport belt 21.
- the cover strips 6 and 11 are driven by two drive rollers, the cover strips 6 and 11 can be imparted independent of the speed of movement of the laying carriage 3 speed. It is envisaged that the speed of the upper run of the cover strip 11, which on the way from the upper carriage 18 to the laying carriage sandwiches together with the first Flortransportband 21 the card web, is greater than the speed of the first Flortransportbandes 21.
- the cover tape 11 which is smooth, slide along the card web, while designed as a wire belt first pile conveyor belt 21 due to its relatively rough surface structure, the card web holds.
- the card web is at the described speed conditions in the area of the quarter circle between the point where the cover tape 11 leaves the first pile conveyor belt, and the storage gap is located around the guide roller 5, stretched.
- This stretching can take place cyclically in order to give the fleece to be laid a specific cross-sectional profile, but also take place continuously, for example in order to reorient the fibers. It is to execute this stretching operation only a suitable control device for the drive motors of the drive rollers 7, 8a, 12 and 13a required.
- the masking tapes 6 and 11 form at the point where they are deflected in the laying carriage 3 of their guide rollers 4 and 5, a gap which is initially referred to as a discharge gap.
- the second cover band 11 is driven so that its upper run follows the movement of the lower run of the first pile transport belt, because both belts enclose the card web on their way between the uppercarriage 18 and the laying carriage 3 between them. So that it does not come to shear forces on the card web by friction on the cover strip, which limit the discharge gap, the first cover 6 is driven so that the peripheral speed of the first guide roller 4 in the laying carriage 3 is exactly as large as the peripheral speed of the second guide roller 5 is, but has opposite direction of rotation.
- Fig. 2 shows a second embodiment of the invention.
- Fig. 2 one recognizes again the laying carriage 18 and its associated second tensioning carriage 23, which are coupled to each other via a chain or toothed belt drive 26, 27, 28.
- the first Flortransportband 21 is partially guided around the two guide rollers 19 and 20 of the upper carriage 18 and then passes through the laying carriage 3, where it is a total of three guide rollers 29, 30 and 31 partially wrapped in the order mentioned, then via a stationary guide roller 22, the in the clamping carriage 23 mounted guide roller 24 and the drive roller 25 again to the upper carriage 18 to run.
- the first pile conveyor belt 21 runs at a close distance above the delivery conveyor belt 1 and forms a first cover strip in this section.
- the second cover strip 11 partially wraps around the second guide roller 5 in the laying carriage 3, as already the example of Fig. 1 has been described. From the laying carriage 3, the lower run of the second cover strip 11 runs at a close distance above the delivery conveyor belt 1. It also runs over some fixed guide rollers 13 and a fixed drive roller 16 and the mounted on a first tensioning carriage 10 guide roller 14.
- the first Clamping carriage 10 and the laying carriage 3 are non-positively connected in this example by a drive chain or a drive toothed belt 15, the or on fixed guide rollers 17 and a stationary, with a motor (not shown) connected drive roller 16 and both on the laying carriage. 3 as well anchored to the tensioning carriage 10. In this example, only one guide roller 14 for the second cover strip 11 is mounted in the tensioning carriage 10.
- the first pile conveyor belt 21 and the upper run of the second cover strip 11 are parallel and guided in close proximity, so that the two bands in this section between them from the first Flortransportband supplied card web pinch.
- the second cover strip 11 thus assumes the function of a second pile conveyor belt in this area.
- Fig. 3 shows a variant of the embodiment of Fig. 2 , This variant differs from the one after Fig. 2 in that the first web conveyor belt 21 is guided in the laying carriage 3 only via the guide rollers 5 and 4 mounted there, wherein it wraps around both guide rollers 5 and 4 by 90 ° and thereby describes an S-shaped path in the laying carriage 3.
- this embodiment of the invention corresponds to that of FIG Fig. 2
- the leadership of the first Flortransportbandes 21 in the laying carriage 3 is extremely simple in this embodiment. This variant can be accessed if frictional effects resulting from unequal radii of curvature of the belts 21 and 11 on the guide roller 5 can be tolerated.
- the Fig. 4a to 4e In agreement therewith one recognizes the obliquely downwardly inclined inlet section of the first pile conveyor belt 21 between the upper and lower guide rollers 19 and 20 in the uppercarriage 18. In the area of this inlet section, behind the lower end, the upper run of the second Masking tape 11 applies to the first pile conveyor belt 21, the first pile conveyor belt 21 is facing a guide device 32, which in the embodiments of the Fig. 4a to 4c extends over the entire oblique inlet section, according to the embodiment Fig. 4d on the area around the lower guide roller 20 and in the embodiment according to Fig. 4e limited to the areas around the upper and lower guide rollers 19 and 20.
- the guide means 32 consists of a plurality of closely spaced rollers 33, which are the first Flortransportband 21 closely spaced and in this way the card web (not shown) between them and the first Flortransportband 21 include.
- These rollers may be motor driven individually or as a group. But they can also be driven by at least one of the guide rollers 19 and 20 by mechanical coupling, because the guide rollers 19 and 20 are offset by the movement of the first Flortransportbandes 21 passing over this in rotation.
- the rollers are formed as disc rollers 34 which are gap-shaped and spaced so close that the discs of one roller engage the gaps between the discs of the other roller, as in FIG Fig. 4b is shown schematically.
- the disk rollers 34 can like the rollers 33 of the first variant after Fig. 4a be driven so as not to hinder the inlet movement of the card web.
- the guide device 32 consists of an endless guide belt 35 which circulates within the upper carriage 18 and which wraps around a free-running deflection roller 36 and a driven deflection roller 37.
- This guide belt 35 and its guide rollers 36 and 37 are arranged at a close distance to the first pile conveyor belt 21 within the upper carriage 18 and thus avoid any fiber fly in the upper carriage 18.
- the driven guide roller 37 may have its own motor drive or mechanically with one of Deflection rollers of the first pile conveyor belt 21 may be coupled, as in the embodiment of Fig. 4a ,
- the guide device 32 is a pressure roller 38, which has its own drive and the lower guide roller 20 in the upper carriage 18 is closely opposite. It forms with this an inlet gap for the card web, which prevents fiber fly in the region of the lower guide roller 20.
- a lower pressure roller 38 which has its own drive and the lower guide roller 20 in the upper carriage 18 is closely opposite, and an upper pressure roller 39, the upper guide roller 19 in the upper carriage closely opposed. Both pressure rollers prevent fiber fly in the area of the guide rollers 19 and 20.
- the distance between the pressure rollers to the guide rollers can be adjusted to make an adjustment to the flange thickness can.
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Abstract
Description
Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Legen eines Vlieses aus einer Florbahn, enthaltend einen quer zu einem Abliefertransportband oberhalb desselben beweglichen Legewagen und einen Oberwagen sowie mehrere Flortransportbänder zum Transport der Florbahn ßber den Oberwagen und den Legewagen in einen am Legewagen ausgebildeten Abgabespalt zur Ablage der Florbahn auf dem Abliefertransportband. Eine Vorrichtung dieser Art ist aus der
In der vorgenannten Druckschrift ist ein Vliesleger beschrieben, bei dem die Floraufnahme einen Bandeinlauf der Transport- und Legebänder (nachfolgend Flortransportbänder) aufweist, der eine schräg abwärts geneigte Einlaufstrecke mit zwei benachbart laufenden Bandabschnitten der Flortransportbänder aufweist. Die am Eintritt in den Bandeinlauf zusammengefßhrten Bandabschnitte bilden einen an die Flordicke angepassten schmalen Einlaufschlitz und laufen in der Einlaufstrecke im Wesentlichen parallel oder im spitzen Winkel zueinander und so nahe beieinander, dass sie den Flor in der Einlaufstrecke beidseitig fßhren oder abdecken. Bei diesem Vliesleger sind beide Flortransportbänder durch den Oberwagen und durch den Legewagen hindurchgefßhrt. -In the aforementioned document, a nonwoven is described, in which the pile recording has a tape inlet of the transport and laying belts (hereinafter Flortransportbänder) having an obliquely downwardly inclined inlet section with two adjacent running belt sections of Flortransportbänder. The band sections, which are brought together at the entrance to the strip inlet, form a narrow inlet slot adapted to the board thickness and run in the inlet section substantially parallel or at an acute angle to each other and close to each other in such a way that they guide or cover the pile on both sides in the inlet section. In this fleece layer both pile conveyor belts are passed through the superstructure and through the laying carriage. -
Auch die
Die vorbekannten Konstruktionen weisen einer relativ komplizierten Verlauf ihrer Flortransportbänder auf, insbesondere am Oberwagen, wo das eine der die Florbahn abstßtzenden Flortransportbänder eine die Einlaufstrecke an ihrem unteren Ende begrenzende Umlenkwalze um mehr als 90° umschlingt. Die Anordnung wird zusätzlich dadurch noch komplizierter, dass das zweite Flortransportband ebenfalls durch den Oberwagen hindurch gefßhrt ist, bei der Konstruktion nach
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, die eine einfachere und dennoch zuverlässige Fßhrung der an Florbahntransport und Florablage beteiligten Bänder aufweist. Diese Aufgabe wird durch einen Vliesleger gelÜst, dessen Merkmale im Anspruch 1 bzw. im Anspruch 3 angegeben sind. Vorteilhafte Weiterbindungen der Erfindung sind Gegenstand der abhängigen Ansprßche.The invention has for its object to provide a device of the type mentioned above, which has a simpler, yet reliable guidance of the belts involved in card web transport and pile storage. This object is achieved by a nonwoven, the features of which are specified in
Die in den vorgenannten unabhängigen AnsprĂźchen beschriebenen LĂśsungen der der Erfindung zugrunde liegenden Aufgabe zeichnen sich Ăźbereinstimmend dadurch aus, dass durch den Oberwagen nur ein einziges jener Flortransportbänder, hier erstes Flortransportband genannt, hindurchleitet ist, die die Florbahn in den Ablegespalt Ăźber dem Abliefertransportband transportieren. Das andere Flortransportband, hier zweites Flortransportband genannt, läuft hingegen unterhalb des Oberwagens an diesem vorbei, schlieĂt aber dennoch die Florbahn auf dem Wege vom Oberwagen zum Legewagen zusammen mit dem ersten Flortransportband sandwichartig ein. Auf diese Weise ist die BandfĂźhrung innerhalb des Viieslegers stark vereinfacht. Es hat sich gezeigt, dass auch bei hohen ZufĂźhrgeschwindigkeiten der Florbahn ein unzulässiger Faserflug am Oberwagen nicht auftritt, weil einerseits die Ablenkung der auf dem ersten Flortransportband liegenden Fasern an der oberen Umlenkwalze des Oberwagens in einem stumpfen Winkel erfolgt und somit die Ablenkung der Florbahn auf dem Weg in die abwärts geneigte Einlaufstrecke abgemildert ist, und zum anderen die Florbahn unmittelbar nach ihrer Umlenkung an der unteren Umlenkwalze des Oberwagens in der schon erwähnten Weise von zwei Bändern sandwichartig eingeschlossen wird.The solutions described in the aforementioned independent claims of the invention underlying the task are characterized by the fact that only one of those Flortransportbänder, here called first Flortransportband, passes through the upper carriage, which transport the card web in the Ablegespalt on the Abliefertransportband. The other Flortransportband, here called second Flortransportband runs, however, below the upper carriage of this past, but still includes the card web on the way from the superstructure to laying carriage together with the first Flortransportband a sandwich. In this way, the tape guide within the Viieslegers is greatly simplified. It has been shown that even at high feed speeds of the card web an impermissible fiber fly on the superstructure does not occur, because on the one hand, the deflection of lying on the first Flortransportband fibers on the upper guide roller of the upper carriage takes place at an obtuse angle and thus the deflection of the card web on the On the other hand, the flag web is immediately after its deflection at the lower deflecting roller of the upper carriage in the manner already mentioned by two bands sandwiched way into the downwardly inclined inlet path.
Sollte bei extrem hohen Florbahntransportgeschwindigkeiten der Einlauf in die abwärts geneigte Einlaufstrecke am Oberwagen Schwierigkeiten bereiten, kann dort gemäà einer vorteilhaften Weiterbildung der Erfindung eine Fßhrungseinrichtung vorgesehen sein, die dem schräg abwärts geneigten Abschnitt des ersten Flortransportbandes gegenßbersteht und mit diesem einen Einlaufspalt bildet. Die Fßhrungseinrichtung kann gemäà einer ersten Variante aus einer Serie eng beabstandeter Walzen bestehen, die einzeln oder als Gruppe vorzugsweise motorisch angetrieben sind, jedoch auch durch mechanische Kopplung mit den Umlenkwalzen des Oberwagen von diesen angetrieben sein kÜnnen. Gemäà einer zweiten Variante sind die Walzen gegebenenfalls ineinander greifende, angetriebene Scheibenwalzen. In einer dritten Variante besteht die Fßhrungsvorrichtung aus einem im Oberwagen endlos umlaufenden, mit einem eigenen Antrieb verbundenen Band, gemäà einer vierten Variante aus einer angetriebenen, der unteren Umlenkwalze des Oberwagens gegenßberstehenden Walze und gemäà einer fßnften Variante aus zwei angetriebenen Walzen, die den oberen und unteren Umlenkwalzen im Oberwagen in engem Abstand gegenßberstehen. In einer besonders einfach ausgebildeten Variante ist die Fßhrungseinrichtung ein dem ersten Flortransportband gegenßberliegendes, glattes Leitblech. Zur Vermeidung von Luftkissen um die Florbahn kann das im Oberwagen endlos umlaufende Fßhrungsband der dritten Variante in einer bevorzugten Ausfßhrungsform als ein Siebband ausgebildet sein. Bei der Variante mit Walzen kÜnnen die Walzen der Fßhrungseinrichtung Siebwalzen sein. Bei der Verwendung von Scheibenwalzen bieten diese die gewßnschte Luftableitfunktion von Hause aus.Should be prepared at extremely high Florbahntransportgeschwindigkeiten the inlet into the downwardly inclined inlet section on the superstructure, there may be provided according to an advantageous embodiment of the invention, a guide means facing the obliquely downwardly inclined portion of the first Flortransportbandes and forms an inlet gap with this. According to a first variant, the guide device can consist of a series of closely spaced rollers, which are preferably motor-driven individually or as a group, but which can also be driven by mechanical coupling with the guide rollers of the uppercarriage. According to one second variant, the rollers are optionally interlocking, driven disc rollers. In a third variant, the guide device consists of an endlessly revolving in the superstructure, connected to a separate drive belt, according to a fourth variant of a driven, the lower guide roller of the upper carriage opposite roller and according to a fifth variant of two driven rollers, the upper and facing lower guide rollers in the upper carriage at a close distance. In a particularly simple variant, the guide device is a smooth guide plate opposite the first pile conveyor belt. In order to avoid air cushions around the card web, the guide belt of the third variant, which revolves endlessly in the superstructure, can be designed as a screen belt in a preferred embodiment. In the variant with rollers, the rollers of the guide device may be screen rollers. When using disc rollers, these offer the desired air leakage function from home.
Gemäà einer weiteren vorteilhaften Variante kann das erste Flortransportband ein Siebband sein. Die Ableitung von Luft aus dem Flor beim Andrßcken des Flors auf das erste Flortransportband wird dadurch begßnstigt. Diese Konstruktion bietet sich besonders fßr die erste Ausfßhrungsform der Erfindung an, da bei ihr das erste Flortransportband einzig Transportfunktion ßbernimmt, nicht aber auch zugleich Abdeckband ist, denn ein Abdeckband sollte nach MÜglichkeit glatt sein. Die Ausbildung dieses Flortransportbandes als Siebband ermÜglicht es auch auf einfache Weise, mit dem Vliesleger eine gesteuerte Streckfunktion auszußben. Details werden später erläutert.According to a further advantageous variant, the first pile conveyor belt may be a screen belt. The derivation of air from the pile when pressing the pile on the first Flortransportband is favored. This construction is particularly suitable for the first embodiment of the invention, since in her the first Flortransportband only transport function, but not at the same time masking tape, because a masking tape should be smooth if possible. The formation of this pile conveyor belt as a sieve belt also makes it possible in a simple manner to exercise a controlled stretching function with the fleece layer. Details will be explained later.
Es ist gemäà einer vorteilhaften Weiterbildung der Erfindung vorgesehen, im Oberwagen auf der der Florauflagefläche des Siebbandes abgewandten Seite eine Saugeinrichtung anzuordnen, die einen Unterdruck an dem Siebband erzeugt, der hilft, die Florbahn auf dem Siebband zu halten. Es kÜnnen auch sowohl das erste Flortransportband als auch das im Oberwagen umlaufende Endlosband als Siebbänder ausgebildet sein. Auch die Kombination von Siebband als erstem Flortransportband und Siebwalzen im Oberwagen ist mÜglich.It is provided according to an advantageous embodiment of the invention to arrange in the upper carriage on the side facing away from the Florauflagefläche of the wire belt suction, which generates a negative pressure on the wire, which helps to keep the card web on the wire. It is also possible for both the first pile conveyor belt and the endless belt circulating in the superstructure to be designed as screen belts. The combination of a wire belt as the first belt conveyor belt and screen rollers in the superstructure is also possible.
Die unter den gemeinsamen Erfindungsgedanken fallenden, grundsätzlichen Varianten der Erfindung unterscheiden sich voneinander dadurch, dass bei der ersten Variante das erste Flortransportband ausschlieĂlich durch den Oberwagen läuft, nicht aber auch durch den Legewagen. Das zweite Flortransportband, das die Florbahn auf ihrem Weg zwischen dem Oberwagen und dem Legewagen in einem horizontalen Abschnitt abstĂźtzt und in den Abgabespalt fĂźhrt, Ăźbernimmt jenseits des Abgabespalts eine Abdeckfunktion fĂźr das auf dem Abliefertransportband abgelegte Vlies. Dieser Bandabschnitt ist jenseits des Abliefertransportbandes Ăźber einen quer zum Abliefertransportband beweglich gefĂźhrten Spannwagen zum Legewagen zurĂźck gefĂźhrt. Durch den Legewagen kann ein zweites Band hindurchgefĂźhrt sein, das eine Abdeckfunktion auf der dem zweiten Flortransportband abgewandten Seite des Legewagens Ăźbernimmt. Das untere Trum dieses gesonderten Abdeckbandes liegt auf dergleichen HĂśhe, wie der die Abdeckfunktion Ăźbernehmende, den Legewagen verlassende Abschnitt des zweiten Flortransportbandes. Das gesonderte Abdeckband ist zu einer Spannwalze und von dieser zurĂźck zum Legewagen gefĂźhrt, wobei diese Spannwalze in demselben Spannwagen gelagert sein kann, wie die Spannwalze des zweiten Flortransportbandes, denn die translatorischen Augenblicksbewegungen der beiden Spannwalzen im Betrieb des Vlieslegers sind einander synchron. Dieser Spannwagen ist vorzugsweise zur Platzersparnis unterhalb des Abliefertransportbandes angeordnet und läuft daher in zur Bewegung des Legewagens entgegengesetzter Richtung. Die Abdeckbänder sind vorzugsweise glatt, um das gelegte Vlies bei BerĂźhrung nicht zu stĂśren.The basic variants of the invention which fall under the common concept of the invention differ from one another in that in the first variant the first pile conveyor belt runs exclusively through the superstructure, but not also through the laying carriage. The second pile conveyor belt, which the flag web on its way between the Supporting the uppercarriage and the laying carriage in a horizontal section and leading into the discharge gap takes over a covering function for the web deposited on the delivery conveyor belt beyond the delivery gap. This band section is led back beyond the delivery conveyor belt via a transversely to the delivery conveyor belt movably guided tensioning carriage to the laying carriage. By the laying carriage, a second band can be passed, which assumes a covering function on the side facing away from the second Flortransportband side of the laying carriage. The lower run of this separate cover strip is at the same level as the covering function, taking the laying carriage leaving section of the second Flortransportbandes. The separate cover strip is guided to a tensioning roller and from this back to the laying carriage, said tensioning roller can be stored in the same clamping carriage, as the tensioning roller of the second Flortransportbandes, because the translational instantaneous movements of the two tensioning rollers in the operation of the batt are synchronous with each other. This clamping carriage is preferably arranged to save space below the Abliefertransportbandes and therefore runs in opposite direction to the movement of the laying carriage. The masking tapes are preferably smooth so as not to disturb the laid web when touched.
Bei der anderen Variante ist das erste Flortransportband nicht nur durch den Oberwagen, sondern auch durch den Legewagen hindurchgeleitet, vergleichbar dem, was im genannten Stand der Technik beschrieben ist. Man spart hierdurch ein gesondertes Abdeckband fßr denjenigen Abschnitt des Abliefertransportbandes, der auf der zum zweiten Flortransportband entgegengesetzten Seite des Legewagens angeordnet ist. Ein Vliesleger dieser Art hat somit nur zwei umlaufende Bänder, von denen aber nur eines durch den Oberwagen hindurchgeleitet ist. Fßr das zweite Flortransportband ist ein eigener Spannwagen vorgesehen, der vom Spannwagen des ersten Flortransportbandes verschieden ist, denn die Bewegungsgeschwindigkeiten der beiden Spannwagen sind wegen der unterschiedlichen Kinematik von Oberwagen und Legewagen unterschiedlich, so dass sie nicht miteinander gekoppelt werden kÜnnen. Bei dieser Variante sind die beiden Flortransportbänder vorzugsweise glatt.In the other variant, the first pile conveyor belt is passed not only through the superstructure, but also through the laying carriage, comparable to what is described in said prior art. This saves a separate cover strip for that portion of the delivery conveyor belt, which is arranged on the opposite side to the second Flortransportband side of the laying carriage. A fleece layer of this type thus has only two circumferential bands, of which only one is passed through the superstructure. For the second Flortransportband a separate clamping carriage is provided, which is different from the clamping carriage of the first Flortransportbandes, because the movement speeds of the two clamping carriages are different because of the different kinematics of superstructure and laying carriage, so that they can not be coupled together. In this variant, the two pile conveyor belts are preferably smooth.
In der letztgenannten Variante kann das erste Flortransportband zusammen mit dem zweiten Flortransportband bis zum Abgabespalt ßber dem Abliefertransportband durch den Legewagen hindurchgeleitet sein, sofern die Reibung zwischen den Bändern und der dazwischen liegenden Florbahn an der in diesem Falle gemeinsamen Umlenkwalze im Legewagen fßr die Florbahn nicht schädlich ist. Wo dieses nicht akzeptabel ist, kann gemäà einer bevorzugten Ausfßhrungsform das erste Flortransportband im Oberwagen ßber weitere, dort gelagerte Umlenkwalzen gefßhrt werden, um es vor dem Ablegespalt von der Florbahn zu trennen, um sich mit ihm unmittelbar vor dem Erreichen des Ablegespalts wieder zu vereinigen, wie es im Stand der Technik an sich bereits beschrieben ist.In the last-mentioned variant, the first pile conveyor belt together with the second pile conveyor belt can be passed through the laying carriage up to the discharge gap above the delivery conveyor belt, provided that the friction between the belts and the intermediate conveyor belt on the guide roller which is common in this case in the laying carriage is not harmful to the card web. Where this is not acceptable, according to a preferred embodiment, the first pile conveyor belt in the superstructure over other, there mounted guide rollers are guided to separate it before the Ablegespalt of the card web to reunite with him immediately before reaching the Ablegespalts as already described in the prior art itself.
Die Erfindung wird nachfolgend unter Bezugnahme auf in den Zeichnungen dargestellte Ausfßhrungsformen näher erläutert. Es zeigt:
- Fig. 1
- eine schematische Ansicht einer ersten AusfĂźhrungsform der Erfindung;
- Fig. 2
- eine schematische Ansicht einer zweiten AusfĂźhrungsform der Erfindung;
- Fig. 3
- eine schematische Ansicht einer vereinfachten Variante der zweiten AusfĂźhrungsform der Erfindung, und
- Fig. 4a bis 4e
- als Ausschnitte jeweils schematische Seitenansichten von an den vorgenannten AusfĂźhrungsformen anwendbaren Ausgestaltungen des Oberwagens der Erfindung.
- Fig. 1
- a schematic view of a first embodiment of the invention;
- Fig. 2
- a schematic view of a second embodiment of the invention;
- Fig. 3
- a schematic view of a simplified variant of the second embodiment of the invention, and
- Fig. 4a to 4e
- in each case schematic side views of applicable to the aforementioned embodiments embodiments of the upper carriage of the invention.
In den vorgenannten Zeichnungen sind nur die fßr die Erläuterung der Erfindung wesentlichen Teile dargestellt, um die Zeichnungen nicht mit ßberflßssigen Details zu beladen. So sind insbesondere ein Maschinengestell und die Schienen, auf denen die beweglichen Wagen im Maschinengestell verschiebbar gefßhrt sind, nicht dargestellt. Man erkennt lediglich ein in gestrichelten Linien dargestelltes Gehäuse der Gesamtanordnung.In the above drawings, only the parts essential to the explanation of the invention are shown so as not to overload the drawings with unnecessary details. Thus, in particular, a machine frame and the rails on which the movable carriage are guided displaceably in the machine frame, not shown. One recognizes only a housing shown in dashed lines of the overall arrangement.
In ähnlicher Weise ist die andere Umlenkwalze 5, die im Spannwagen 3 drehbar gelagert ist, von einem zweiten Abdeckband 11 teilumschlungen, das ßber eine angetriebene Umlenkwalze 12 und einer ortsfesten Umlenkwalze 13 zu einer im ersten Spannwagen 10 gelagerten zweiten Umlenkwalze 14 gefßhrt ist, die von dem Abdeckband 11 teilumschlungen wird, von wo aus das Abdeckband 11 ßber weitere ortsfeste Umlenkwalzen 13 bzw. 13a zum Legewagen 3 zurßckläuft. Das zweite Abdeckband 11 weist ein unteres Trum auf, das in dichtem Abstand ßber dem Abliefertransportband 1 verläuft. Die angetriebene Umlenkwalze 12 ist mit einem Motor (nicht dargestellt) gekoppelt und ist dazu bestimmt, das zweite Abdeckband 11 in unterschiedlichen Richtungen anzutreiben.Similarly, the
Am Legewagen 3 ist eine Kette oder ein Zahnriemen 15 angebracht, der ßber ein mit einem Motor (nicht dargestellt) verbundenen Antriebszahnrad 16 und ein Umlenkrad 17 läuft. Mit Hilfe dieser Antriebseinrichtungen lässt sich der Legewagen 3 oberhalb des Abliefertransportbandes 1 quer zu dessen Transportrichtung hin und her verfahren.At the
In einer gegenĂźber dem HĂśhenniveau des Legewagens 3 erhĂśhten Lage ist in dem Maschinengestell ein Oberwagen 18 quer zur Transportrichtung des Abliefertransportbandes 1 auf Schienen (nicht dargestellt) verfahrbar gelagert. Der Oberwagen hat eine obere Umlenkwalze 19 und eine untere Umlenkwalze 20, die seitlich gegeneinander versetzt sind. Ăber diese beiden Walzen 19 und 20 läuft ein Flortransportband 21, das nachfolgend erstes Flortransportband genannt wird. In dem Bereich, der von den beiden Umlenkwalzen 19 und 20 im Oberwagen 18 begrenzt wird, verläuft das erste Flortransportband 21 schräg abwärts geneigt. Von der unteren Umlenkwalze 20 im Oberwagen 18 ausgehend verläuft das erste Flortransportband 21 parallel zu den oberen Trums der beiden Abdeckbänder 6 und 11. Es ist Ăźber eine im Maschinengestell ortsfest gelagerte (nachfolgend "ortsfeste") Umlenkwalze 22 und von dort Ăźber eine in einem zweiten Spannwagen 23 gelagerte Umlenkwalze 24 gefĂźhrt, um dann Ăźber eine ortsfest gelagerte, motorisch angetriebene Umlenkwalze 25 zu laufen, bevor es den Oberwagen 18 wieder erreicht. Der Oberwagen 18 und der zweite Spannwagen 23 sind Ăźber eine Kette oder einen Zahnriemen 26 miteinander verbunden, die bzw. der Ăźber ein mit einem Motor (nicht dargestellt) verbundenes Antriebszahnrad 27 und ein Umlenkrad 28, die im Maschinengestell gelagert sind, läuft. Ferner erkennt man in
In dem Bereich zwischen der unteren Umlenkwalze 20 des Oberwagens 18 und der zweiten Umlenkwalze 5 des Legewagens 3 sind das erste Flortransportband 21 und das zweite Abdeckband 11 parallel zueinander in engem Abstand gefĂźhrt, so dass eine vom ersten Flortransportband 21 herangefĂźhrte Florbahn in dem genannten Bereich zwischen dem Oberwagen und dem Legewagen vom ersten Flortransportband 21 und dem zweiten Abdeckband 11 sandwichartig eingeschlossen ist. Dabei ist die Florbahn von dem genannten Abdeckband 11 abgestĂźtzt, weshalb dieses auch als ein zweites Flortransportband im Sinne der vorliegenden Erfindung bezeichnet wird.In the area between the
Im dargestellten Beispiel ist im Oberwagen eine schematisch angedeutete Saugeinrichtung 40 vorgesehen, die dem ersten Flortransportband 21 im Bereich der Einlaufstrecke auf der der Florauflagefläche abgewandten Seite gegenĂźbersteht. Im Betrieb hilft ein von der Saugeinrichtung 40 aufgebauter Unterdruck, die Florbahn auf dem ersten Flortransportband 21 zu halten, sofern dieses als Siebband ausgebildet ist. Die Verwendung eines Siebbandes als erstes Flortransportband 21 ist besonders vorteilhaft, da es mit seiner Hilfe mĂśglich ist, in dem Bereich zwischen dem Oberwagen und dem Legewagen, wo zwei Bänder parallel gefĂźhrt sind und die Florbahn sandwichartig zwischen sich einschlieĂen, die Luft aus der Florbahn herauszupressen, ohne dass Fasern seitlich verblasen werden und die Faserorientierung durch die abstrĂśmende Luft gestĂśrt wird.In the illustrated example, a schematically indicated
Man erkennt in der Zeichnung, dass im Betrieb, wenn der Legewagen 3 eine ßber dem Abliefertransportband 1 hin- und hergehende Bewegung ausfßhrt, der erste Spannwagen 10 eine gegenläufige Bewegung ausfßhrt, weil die Schleifenlängen der Abdeckbänder 6 und 11 konstant sind. Weiterhin fßhren der Oberwagen 18 und sein zugehÜriger zweiter Spannwagen 23 im Betrieb eine zueinander gegenläufige Bewegung aus, weil sie durch die Kette oder den Zahnriemen 26 kraftschlßssig miteinander verbunden sind. Der zweite Spannwagen 23 ist notwendig, um die Schleifenlänge des ersten Flortransportbandes 21 konstant zu halten.It can be seen in the drawing that, in operation, when the laying
Die Kinematik von Oberwagen 18 und Legewagen 3 entspricht vollkommen derjenigen, die in
Wenn gemäà der Weiterbildung der Erfindung das erste Flortransportband 21 als Siebband ausgebildet ist, lässt sich mit dem Vliesleger auch eine gezielte Streckfunktion ausßben. Wenn von den Umlenkwalzen der Abdeckbänder 6 und 11 jeweils zwei Umlenkwalzen mit unabhängig steuerbaren motorischen Antrieben versehen sind, was in
Normalerweise sind die Antriebe der Abdeckbänder mittels der Antriebswalzen 7 und 12 so gesteuert, dass das in Bewegungsrichtung des Legewagens 3 hinten liegende Abdeckband sich einfach nur auf das gelegte Vlies legt und sich diesem gegenßber nicht bewegt, während das in Bewegungsrichtung des Legewagens 3 vorn liegende Abdeckband sich mit gegenßber der Bewegungsgeschwindigkeit des Legewagens 3, doppelten Geschwindigkeit nach vorn bewegt. Die Umfangsgeschwindigkeit der Umlenkwalze 5 im Legewagen, um die das die Florbahn zusammen mit dem ersten Flortransportband 21 transportierende Abdeckband 11 läuft, ist so groà wie die Geschwindigkeit zwischen dem Legewagen 3 und dem ersten Flortransportband 21.Normally, the drives of the masking tapes are controlled by means of the
Weil gemäà einer vorteilhaften Weiterbildung der Erfindung die Abdeckbänder 6 und 11 von jeweils zwei Antriebswalzen antreibbar sind, kann den Abdeckbändern 6 und 11 eine von der Bewegungsgeschwindigkeit des Legewagens 3 unabhängige Geschwindigkeit verliehen werden. Dabei ist vorgesehen, dass die Geschwindigkeit des oberen Trums des Abdeckbandes 11, das auf dem Weg vom Oberwagen 18 zum Legewagen zusammen mit dem ersten Flortransportband 21 die Florbahn sandwichartig umschlieĂt, grĂśĂer ist, als die Geschwindigkeit des ersten Flortransportbandes 21. Wenn der Druck, mit dem die Bänder 21 und 11 in diesem Bereich an der Florbahn anliegen, in geeigneter Weise eingestellt ist, kann das Abdeckband 11, das glatt ist, an der Florbahn entlang gleiten, während das als Siebband ausgebildete erste Flortransportband 21 aufgrund seiner relativ rauhen Oberflächenstruktur die Florbahn festhält. Wenn der im Ablagespalt an den Umlenkwalzen 4 und 5 auf die Florbahn einwirkende Druck ausreichend hoch ist, dass dort ein Schlupf zwischen den Bändern und der Florbahn ausgeschlossen oder weitgehend ausgeschlossen ist, wird die Florbahn bei den erläuterten Geschwindigkeitsbedingungen in dem Bereich des Viertelkreises, der zwischen der Stelle, wo das Abdeckband 11 das erste Flortransportband verlässt, und dem Ablagespalt um die Umlenkwalze 5 liegt, verstreckt. Diese Verstreckung kann zyklisch erfolgen, um dem zu legenden Vlies ein bestimmtes Querschnittsprofil zu verleihen, aber auch kontinuierlich stattfinden, beispielsweise um Fasern umzuorientieren. Es ist zur AusfĂźhrung dieses Streckvorgangs lediglich eine passende Steuereinrichtung fĂźr die Antriebsmotoren der Antriebswalzen 7, 8a, 12 und 13a erforderlich.Because according to an advantageous embodiment of the invention, the cover strips 6 and 11 are driven by two drive rollers, the cover strips 6 and 11 can be imparted independent of the speed of movement of the laying
Man erkennt in
Die Abdeckbänder 6 und 11 bilden an der Stelle, wo sie im Legewagen 3 von ihren Umlenkwalzen 4 und 5 umgelenkt werden, einen Spalt aus, der eingangs als Abgabespalt bezeichnet ist. Im Betrieb des Vlieslegers ist das zweite Abdeckband 11 so angetrieben, dass sein oberes Trum der Bewegung des unteren Trums des ersten Flortransportbandes folgt, weil beide Bänder die Florbahn auf ihrem weg zwischen dem Oberwagen 18 und dem Legewagen 3 zwischen sich einschlieĂen. Damit es in dem Abgabespalt nicht zu Scherkräften an der Florbahn durch Reibung an den Abdeckbändern kommt, die den Abgabespalt begrenzen, ist das erste Abdeckband 6 so angetrieben, dass die Umfangsgeschwindigkeit der ersten Umlenkwalze 4 im Legewagen 3 genau so groĂ wie die Umfangsgeschwindigkeit der zweiten Umlenkwalze 5 ist, aber entgegengesetzen Drehsinn hat.The
In
Das zweite Abdeckband 11 teilumschlingt die zweite Umlenkwalze 5 im Legewagen 3, wie schon am Beispiel der
Im Bereich zwischen der unteren Umlenkwalze 20 am Oberwagen 18 und dem Legewagen 3 sind das erste Flortransportband 21 und das obere Trum des zweiten Abdeckbandes 11 parallel und im engen Abstand gefßhrt, so dass die beiden Bänder in diesem Abschnitt eine vom ersten Flortransportband zugefßhrte Florbahn zwischen sich einklemmen. Das zweite Abdeckband 11 ßbernimmt in diesem Bereich somit die Funktion eines zweiten Flortransportbandes.In the area between the
Bei Erreichen der das zweite Abdeckband 11 im Legewagen 3 umlenkenden Walze 5 trennen sich das erste Flortransportband 21 und das zweite Abdeckband 11 voneinander, denn das erste Flortransportband 21 ist um zwei gesonderte Umlenkwalzen 29 und 30 zur ersten Umlenkwalze 4 gefßhrt, die den Ablegespalt begrenzt, der von den genannten Bändern zwischen den beiden Umlenkwalzen 4 und 5 am Legewagen 3 gebildet wird. Durch diese an sich bekannte Fßhrung des ersten Flortransportbandes 21 werden Reibungseffekte an der Umlenkwalze 5 vermieden, die durch unterschiedliche Bahnradien der an der Umlenkung beteiligten Bänder 21 und 11 hervorgerufen werden kÜnnten.Upon reaching the
Die ßbrigen Details dieser Ausfßhrungsform sollen hier nicht beschrieben werden, um Wiederholungen zu vermeiden. Es darf zur Erläuterung auf die entsprechenden Bezugszeichen sowie deren zugehÜrige Beschreibung in der ersten Ausfßhrungsform verwiesen werden.The remaining details of this embodiment will not be described here to avoid repetition. For explanation, reference should be made to the corresponding reference numerals and their corresponding description in the first embodiment.
Man erkennt in
Die Kinematik der Ober- und Legewagen dieser AusfĂźhrungsform entspricht vollkommen derjenigen nach
Die
Bei der AusfĂźhrungsform von
Bei der AusfĂźhrungsform von
Bei der AusfĂźhrungsform nach
Bei der AusfĂźhrungsform nach
Bei der AusfĂźhrungsform nach
Man erkennt, dass auch bei dieser optionalen Ergänzung der Florfßhrungseinrichtungen gemäà der
Claims (16)
- Apparatus for laying a non-woven fabric consisting of a fibrous web, containing a laying carriage (3) movable transversely to a discharge conveyor belt (1) above the latter and an upper carriage (18) as well as several fibrous web conveyor belts (11, 21) for guiding the fibrous web over the upper carriage (18) and the laying carriage (3) into an output gap formed on the laying carriage (3), on the upper carriage (18) being formed a belt inlet having a downwardly sloping inlet zone, over which is guided a first fibrous web conveyor belt (21) which runs from a lower end of the inlet zone in a direction towards the laying carriage (3) and in this section is accompanied in parallel by a section of a second fibrous web conveyor belt (11), enclosing the fibrous web together with the latter as far as the laying carriage (3), and being returned to the laying carriage (3) through the laying carriage (3) and parallel as a covering belt over the discharge conveyor belt (1), characterised in that the section of the second fibrous web conveyor belt (11) which is returned to the laying carriage (3) is guided only over a tension carriage (10) movable transversely to the discharge conveyor belt (1), but not also through the upper carriage (18).
- Apparatus according to claim 1 having a second endless belt (6) which is guided through the laying carriage (3) and forms a covering belt and which in the laying carriage (3) with the second fibrous web conveyor belt (11) forms the output gap and which is guided over stationary deflecting rollers (7, 8) to a deflecting roller (4) mounted in the tension carriage (10) of the second fibrous web conveyor belt (11) and wraps round the latter deflecting roller (4).
- Apparatus for laying a non-woven fabric consisting of a fibrous web, containing a laying carriage (3) movable transversely to a discharge conveyor belt (1) above the latter and an upper carriage (18) as well as two fibrous web conveyor belts (11, 21) for guiding the fibrous web over the upper carriage (18) and the laying carriage (3) in an output gap formed on the laying carriage (3), on the upper carriage (18) being formed a belt inlet having a downwardly sloping inlet zone, and a first fibrous web conveyor belt (21) which runs over the upper carriage (18) being returned to the belt inlet through the laying carriage (3) and transversely over the discharge conveyor belt (1) and over a tension carriage (23) and a second fibrous web conveyor belt (11) being guided through the laying carriage (3), which second fibrous web conveyor belt (11) has an upper run which extends parallel and closely spaced apart from the section of the first fibrous web conveyor belt (21) running from the lower end of the inlet zone in a direction towards the laying carriage (3), and a lower run which extends in the same plane as the section of the first fibrous web conveyor belt (21) leaving the laying carriage (3), characterised in that the section of the second fibrous web conveyor belt (11) which returns from the laying carriage (3) in a direction towards the lower end of the inlet zone is guided only through a tension carriage (10) movable transversely to the discharge conveyor belt (1), but not also through the upper carriage (18).
- Apparatus according to claim 3, characterised in that the first fibrous web conveyor belt (21) is guided within the laying carriage (3) parallel to the second fibrous web conveyor belt (11) as far as an output gap over the discharge conveyor belt (1) where the two fibrous web conveyor belts (21, 11), each partially wrapping round a deflecting roller (4, 5), separate from each other.
- Apparatus according to any of the preceding claims, characterised in that in the belt inlet opposite the first fibrous web conveyor belt (21) is a guide device (32) which is independent of the second fibrous web conveyor belt (11) and which together with the first fibrous web conveyor belt (21) forms a fibrous web inlet gap.
- Apparatus according to claim 5, characterised in that the guide device (32) consists of several rollers (33) adjacent at a close distance to each other and to the first fibrous web conveyor belt (21).
- Apparatus according to claim 6, characterised in that the rollers in each case are disc rollers (34), the discs of two adjacent disc rollers (34) are staggered and their centre-to-centre distance is smaller than the disc diameter, so that the disc rollers (34) interpenetrate.
- Apparatus according to claim 5, characterised in that the guide device (32) is formed by a guide belt (35) which runs round endlessly within the upper carriage (18) and which in the upper carriage is guided over two deflecting rollers (36, 37).
- Apparatus according to claim 8, characterised in that one (37) of the deflecting rollers (36, 37) of the guide belt (35) is arranged above a deflecting roller (19) of the first fibrous web conveyor belt (21) defining the inlet zone at the upper end.
- Apparatus according to claim 8 or 9, characterised in that the guide belt (35) is a screen belt.
- Apparatus according to claim 5, characterised in that the guide device (32) is formed by a free pressure roller (38) which is arranged adjacent to a deflecting roller (20) of the first fibrous web conveyor belt (21) defining the inlet zone at the lower end, at the same height at this roller (20).
- Apparatus according to claim 11, characterised in that belonging to the guide device (32) is a second free pressure roller (39) which is arranged adjacent to a deflecting roller (19) of the first fibrous web conveyor belt (21) defining the inlet zone at the upper end, at approximately the same height at this roller (19).
- Apparatus according to claim 5, characterised in that the guide device is a metal sheet having a smooth surface and located opposite the first fibrous web conveyor belt (21) in the inlet zone.
- Apparatus according to any of the preceding claims, characterised in that the first fibrous web conveyor belt (21) is a screen belt.
- Apparatus according to claim 14, characterised in that in the upper carriage (18) in the region of the inlet zone, on the side facing away from the fibrous web-supporting surface of the first fibrous web conveyor belt (21), is provided an extraction device (40).
- Apparatus according to claim 2, characterised in that the first fibrous web conveyor belt (21) is a screen belt and the two belts (6, 11) acting as covering belts are in each case guided over two drive rollers (8, 8a; 13, 13a) connected to individual motors.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502006000950T DE502006000950D1 (en) | 2006-02-01 | 2006-02-01 | Device for laying a fleece |
EP06002075A EP1816243B1 (en) | 2006-02-01 | 2006-02-01 | Device for laying a nonwoven |
AT06002075T ATE398691T1 (en) | 2006-02-01 | 2006-02-01 | DEVICE FOR LAYING A FLEECE |
US11/651,898 US7810218B2 (en) | 2006-02-01 | 2007-01-10 | Cross lapper |
CN2007100030295A CN101012580B (en) | 2006-02-01 | 2007-01-31 | Cross lapper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06002075A EP1816243B1 (en) | 2006-02-01 | 2006-02-01 | Device for laying a nonwoven |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1816243A1 EP1816243A1 (en) | 2007-08-08 |
EP1816243B1 true EP1816243B1 (en) | 2008-06-18 |
Family
ID=36599669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06002075A Active EP1816243B1 (en) | 2006-02-01 | 2006-02-01 | Device for laying a nonwoven |
Country Status (5)
Country | Link |
---|---|
US (1) | US7810218B2 (en) |
EP (1) | EP1816243B1 (en) |
CN (1) | CN101012580B (en) |
AT (1) | ATE398691T1 (en) |
DE (1) | DE502006000950D1 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE543930T1 (en) * | 2008-08-21 | 2012-02-15 | Dilo Kg Maschf Oskar | DEVICE FOR LAYING A FLEECE |
CN101671919B (en) * | 2008-09-09 | 2011-01-26 | 䝪ĺžĺ¸ĺćšč˝ťçşşćşć˘°ĺ | Cross lapping machine |
EP2169095B1 (en) | 2008-09-29 | 2012-06-06 | Oskar Dilo Maschinenfabrik KG | Device for laying a fibre web evenly |
EP2175056B1 (en) * | 2008-10-07 | 2012-02-01 | Oskar Dilo Maschinenfabrik KG | Device and method for transferring a non-woven web |
DE202010008748U1 (en) | 2010-10-07 | 2012-01-16 | Autefa Solutions Germany Gmbh | securing device |
DE102010050028A1 (en) * | 2010-11-02 | 2012-05-03 | TrĂźtzschler Nonwovens Gmbh | The nonwoven laying |
EP2479330B1 (en) * | 2011-01-19 | 2013-12-18 | Oskar Dilo Maschinenfabrik KG | Fibrous web laying device |
EP2479321A1 (en) * | 2011-01-19 | 2012-07-25 | Oskar Dilo Maschinenfabrik KG | Fibrous web laying device |
DE202012102597U1 (en) * | 2012-07-13 | 2013-10-14 | Hi Tech Textile Holding Gmbh | lapper |
DE202013104946U1 (en) * | 2013-11-05 | 2015-02-06 | Autefa Solutions Germany Gmbh | lapper |
DE202013105029U1 (en) * | 2013-11-08 | 2015-02-10 | Autefa Solutions Germany Gmbh | lapper |
CN103911770B (en) * | 2014-04-22 | 2016-02-24 | ćšĺĺ¤§ĺŚ | A kind of multiaxis is to cross lapping machine |
FR3040399B1 (en) | 2015-09-02 | 2017-09-08 | Andritz Asselin Thibeau | DEVICE FORMING BELT-TAPPING DEVICE |
FR3040398B1 (en) * | 2015-09-02 | 2018-07-13 | Andritz Asselin Thibeau | DEVICE FORMING A PRUNER AND METHOD FOR CONTROLLING A CALIBRATOR OF THIS TYPE |
EP3239371B1 (en) | 2016-04-29 | 2021-06-23 | Oskar Dilo Maschinenfabrik KG | Fibrous web laying device |
FR3063741A1 (en) * | 2017-03-09 | 2018-09-14 | Andritz Asselin Thibeau | FLATNESS |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2234395B1 (en) | 1973-06-19 | 1976-09-17 | Asselin Robert | |
DE2609396C2 (en) * | 1976-03-06 | 1985-02-21 | Hergeth KG Maschinenfabrik und Apparatebau, 4408 DĂźlmen | Non-woven tape layer |
US4308640A (en) * | 1979-03-08 | 1982-01-05 | Celanese Corporation | Cross lapping apparatus |
DE4010174A1 (en) * | 1990-03-30 | 1991-10-02 | Hollingsworth Gmbh | METHOD FOR DEPOSITING A FLEECE OR THE LIKE, AND FLEECE STRAP |
FR2677044B1 (en) | 1991-06-03 | 1994-04-29 | Asselin Ets | SPREADER-STEAMER. |
US5289617A (en) | 1991-06-03 | 1994-03-01 | Asselin (Societe Anonyme) | Spreading and lap-forming machine |
DE9212215U1 (en) | 1992-09-10 | 1994-01-13 | Autefa Maschinenfab | Device for producing a nonwoven from fiber material |
DE4304988C1 (en) * | 1993-02-18 | 1994-04-07 | Autefa Maschinenfab | Wadding prodn. machinery - has mechanism to extend or condense the web of gauze |
DE29518587U1 (en) * | 1995-11-23 | 1997-04-10 | Autefa Maschinenfab | Fleece layer |
IT1291420B1 (en) * | 1997-02-19 | 1999-01-11 | Vani Olivo | MACHINE FOR CROSSED COUPLING OF NON-WOVEN CARDED FIBER SHEETS WITH ROTARY DEPOSITION TAPE |
US6189185B1 (en) * | 1997-02-19 | 2001-02-20 | Asselin | Methods and devices for producing a streamlined lap and a continuous textile product |
FR2770855B1 (en) | 1997-11-07 | 2000-01-28 | Asselin | METHOD AND DEVICE FOR PRODUCING A TEXTILE TABLECLOTH |
DE29822460U1 (en) | 1998-12-18 | 2000-05-18 | Autefa Maschinenfab | Fleece layer |
DE20211365U1 (en) | 2002-07-27 | 2003-10-09 | Autefa Automation Gmbh | Device for treating fibers |
EP1593761B1 (en) * | 2004-04-02 | 2007-06-20 | Oskar Dilo Maschinenfabrik KG | Swinging arm cross-lapper |
-
2006
- 2006-02-01 DE DE502006000950T patent/DE502006000950D1/en active Active
- 2006-02-01 EP EP06002075A patent/EP1816243B1/en active Active
- 2006-02-01 AT AT06002075T patent/ATE398691T1/en active
-
2007
- 2007-01-10 US US11/651,898 patent/US7810218B2/en active Active
- 2007-01-31 CN CN2007100030295A patent/CN101012580B/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1816243A1 (en) | 2007-08-08 |
US7810218B2 (en) | 2010-10-12 |
US20070175000A1 (en) | 2007-08-02 |
ATE398691T1 (en) | 2008-07-15 |
CN101012580A (en) | 2007-08-08 |
DE502006000950D1 (en) | 2008-07-31 |
CN101012580B (en) | 2010-10-27 |
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