EP0609907B1 - Laying device and method for making a non-woven - Google Patents

Laying device and method for making a non-woven Download PDF

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Publication number
EP0609907B1
EP0609907B1 EP94104338A EP94104338A EP0609907B1 EP 0609907 B1 EP0609907 B1 EP 0609907B1 EP 94104338 A EP94104338 A EP 94104338A EP 94104338 A EP94104338 A EP 94104338A EP 0609907 B1 EP0609907 B1 EP 0609907B1
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EP
European Patent Office
Prior art keywords
carriage
web
laying
conveyor belt
conveyor belts
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EP94104338A
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German (de)
French (fr)
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EP0609907A3 (en
EP0609907A2 (en
Inventor
Eduard Hille
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Oskar Dilo Maschinenfabrik KG
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Autefa Holding GmbH
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Publication of EP0609907A3 publication Critical patent/EP0609907A3/en
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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
    • 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)

Definitions

  • the invention relates to a nonwoven tape layer and a Process for producing a nonwoven according to the preamble of the main process and device claim.
  • Such a nonwoven tape layer with the type designation "ETALEUR-NAPPEUR 390" is from the company Etablmaschines ASSELIN, Elbeuf, France.
  • Such a nonwoven tape or nonwoven tape layer serves to especially of a card or the like delivered nonwovens, nonwoven fabrics, spunbonded fabrics or The like.
  • a predetermined variable speed to remove moving discharge belt.
  • there the pile fed by the card is placed on a a predetermined speed driven feed belt transported. Inside the nonwoven belt layer the pile becomes at least partially between two Conveyor belts are transported with the same Move speed.
  • These conveyor belts are as endless conveyor belts.
  • the fleece belt layer needed for storing as evenly as possible des Flores back and forth carriage, namely an uppercarriage and a laying carriage, in which deflection rollers for guiding and redirecting both Conveyor belts are stored.
  • the conveyor belts are also guided over pulleys on the machine stand.
  • the nonwoven belt layer has an open belt inlet on the superstructure, the two conveyor belts on the superstructure different directions come together and there form a tape inlet, at least the first Conveyor belt a at an acute angle ⁇ Has horizontal sloping sloping band section. On this section of tape and the associated one The pile is fed open and without a cover. This arrangement is important for speed of the nonwoven belt layer.
  • a nonwoven band layer is known where the uppercarriage and the laying carriage have a common one or also have a separate drive that the Cars with different speeds in opposite Direction is moving.
  • the uppercarriage runs always at half the speed of the laying carriage and cover half the way of the laying carriage.
  • the Drive is designed as a servo drive and with one freely programmable control connected.
  • the speed the car can use it to drive can be changed as desired, including the acceleration phases in the reversal points of the driving movement can be influenced at will.
  • the exit speed the fleece always corresponds to the fleece inlet speed.
  • FR-A-2 234 395 shows a nonwoven band layer in which both conveyor belts are guided over two main carriages.
  • a closed and also stationary Belt infeed that is independent of the position of the superstructure is always on the same slope.
  • the pile is fed on a conveyor belt and treads at a fixed location between two pulleys into the gap between the two deflected there stationary Conveyor belts. From here the pile arrives pressing on both sides between the parallel conveyor belts to the uppercarriage.
  • both conveyor belts essentially vertically downwards deflected, being in one embodiment from each other be distanced or in the other variant be redirected together around a major role. in the first case can be seen through the vertically downward running belt section of the pile from the lower conveyor belt peel off.
  • the two lead together deflected conveyor belts by their different large distances from the roller axis and their accordingly different speeds to tension and undesirable impairments in the Flor.
  • the invention has for its object a method for the production of nonwovens and a nonwoven tape layer Form such that the pile at high speeds can break in.
  • the invention advantageously provides that in the uppercarriage two deflection rollers for the incoming Flor-transporting conveyor belt are arranged and that the deflecting rollers are offset from one another in this way are arranged so that one is under a pointed one Angle ⁇ to the horizontal section of the first conveyor belt results.
  • a tension wagon always keeps the main conveyor belt under tension.
  • the tension carriage is driven by the power transmission element brought into its respective position and needed therefore no separate drive.
  • two staggered deflecting rollers for the second conveyor belt are arranged such that a sinking section also for the second conveyor belt results, which together with the sinking Section of the first conveyor belt an opening angle ⁇ between the two conveyor belts in the superstructure forms.
  • a sinking section also for the second conveyor belt results, which together with the sinking Section of the first conveyor belt an opening angle ⁇ between the two conveyor belts in the superstructure forms.
  • the opening angle ⁇ can be variably adjustable.
  • the opening angle ⁇ is due to the arrangement of the the deflection rollers arranged on the right in the drawing of the superstructure can be reduced to approx. 20 °.
  • the opening angle between the two conveyor belts can also be over 90 °.
  • the conveyor belt that transports the incoming pile can after an initially horizontal section before Superstructure one at an acute angle ⁇ to the horizontal sinking section in the area of the uppercarriage exhibit.
  • the nonwoven belt layer 1 has a feed belt 2, over which a pile 4 or the like of an arranged in front stuff with a steady but changeable speed of, for example, 1.5 m / s is supplied. Across The conveying direction of the feed belt 2 is a discharge belt 6 arranged on deflection rollers 8, on the transverse and in Zigzag to the direction of delivery. Instead of a transverse discharge belt 6 can also be a lengthways, i.e. also one in the same direction as the feed belt 2 running discharge belt 6 is provided his.
  • the nonwoven banding machine 1 is equipped with three trolleys, with a superstructure 10, a tension car 12 as well as a laying carriage 14.
  • the fleece band layer 1 is with provided two endless conveyor belts 18 and 20, which at least partially take up the pile 4 between them, transport and guide.
  • the first conveyor belt 18 takes over in the area of the fleece inlet the pile 4 from the feed belt 2. On this A deflection roller 24 is provided at the same time take up the belt drive for the first conveyor belt 18 can.
  • the belt speed of the conveyor belt 18 is determined by the clutter. From the fleece inlet the conveyor belt 18 first goes back and forth moved superstructure 10 supported deflection rollers 26 ', 26' ', which deflect the conveyor belt 18 by 180 ° and parallel return to one in a feed side machine stand 54a mounted stationary guide roller 28 for the first conveyor belt 18. The redirection by 180 ° then guides the conveyor belt to the reciprocating one Laying carriage 14, which over and above the set laying width is moved.
  • the laying carriage 14 is equipped with a deflection roller 30 for the provided the first conveyor belt from where the first conveyor belt 18 runs back to the pile inlet.
  • a deflection roller 30 for the provided the first conveyor belt from where the first conveyor belt 18 runs back to the pile inlet.
  • the Conveyor belt 18 over at least one stationary, e.g. by doing Machine stand 54a supported deflection roller 32,34 again deflected by 180 ° and the reciprocating Spannwagen 12 fed.
  • About the 12 mounted on the wagon Deflection roller 36 ultimately becomes the first conveyor belt again fed to the first deflection roller 24.
  • the second endlessly at the same speed as the first conveyor belt revolving conveyor belt 20 is over deflection rollers 38 ', 38' 'mounted on the superstructure 10 in this way deflected that the pile 4 fed from the pile inlet between the deflection rollers 26 ', 26' 'and the deflection rollers. 38 ', 38 "of the superstructure is guided and transported becomes.
  • Via a further deflection roller 40 of the uppercarriage the conveyor belt 20 is deflected in the same direction like the first conveyor belt 18 through the deflection rollers 26 ', 26 ", so that the pile 4 between the two conveyor belts 18 and 20 around the deflection roller 28 to the deflection roller 30 of the laying carriage 14 is guided.
  • the conveyor belt 20 is over two guide rollers stored in the laying carriage 14 42, 44 deflected twice, the second deflection roller 44 together with the deflection roller 30 of the laying carriage 14 on the Exit point 46 of the pile 4 the pile again for the last time leads between the two conveyor belts 18, 20.
  • the Return of the conveyor belt 20 to the deflection roller 38 of the Upper carriage 10 then takes place similarly to the conveyor belt 18 via at least one stationary deflection roller 48.50.
  • the tensioning carriage 12 and of the laying carriage 14, as can be seen from FIG. 1, is a drive chain 52 provided, the ends of which are fixed to the Machine stand 54b are anchored.
  • the drive chain 52 is on each car via a sprocket 56,58,60 by 180 ° diverted.
  • the drive chain 52 of two each with an electronically controlled drive provided sprockets 62,64 also deflected by 180 °.
  • the drive chain 52 is thus from the attachment point on the machine stand 54b via the chain wheel 56 of the upper carriage 10 to the sprocket 62 of the drive motor for the uppercarriage, then over the sprocket 58 of the tensioning carriage 12 to the chain wheel 64 of the drive for the laying carriage 14 and the sprocket 60 of the laying carriage 14 again to the second Attachment point performed on the machine stand 54b.
  • the return movement of the superstructure 10, the tensioning carriage 12 and the laying carriage 14 is, for example, with a suitable endless conveyor belt, namely the conveyor belt 18 causes.
  • a suitable endless conveyor belt namely the conveyor belt 18 causes.
  • the sprocket 62 on the electronically controlled drive can consequently be the Determine the position of the superstructure while the sprocket 64 determines the position of the laying carriage.
  • the position of the tensioning carriage 12 results from the movement of the two sprockets 62 and 64, so that the Tensioning carriage does not require its own drive.
  • the two sprockets 62 and 64 allow in connection with the tension wagon 12 a completely independent Control of the movement of the laying carriage and the movement of the uppercarriage.
  • 4 warping and upsetting for example in the range between + - 15%, can be adjusted continuously and smoothly when the pile is laid down, also variably over the entire laying width.
  • This opening angle can also be only 20 ° with unchanged Position of the rollers 26 'and 26' ', or be variably adjustable.
  • the deflection rollers 26 'and 26' ' arranged offset from one another such that the sinking section of the first conveyor belt 18 a takes an acute angle to the horizontal.
  • a guide roller 41 stored, which directs the second conveyor belt 20.
  • the conveyor belt 20 and the conveyor belt 21 are preferred only driven by friction, but they can also driven by coupling to the conveyor belt 18 be or be provided with its own drive.
  • the chain guide two additional guide wheels 61, 63 for the chain wheel 62 on, which are arranged in front of and behind the sprocket 62.
  • the chain wheels 62 and 64 and the deflection roller 24 are provided with suitable encoders to the electronic Control to transmit speed signals.
  • the reversal points for the laying carriage trip are from the electronic control, by appropriate drive of the sprocket 64.
  • the tension carriage 12 is used for the additional To store the required conveyor belt.
  • the belt speed of the first conveyor belt 18 or the peripheral speed of the deflection roller is 24 V E. This speed is preferably constant and remains unchanged for the forward and reverse run of the laying carriage.
  • the laying carriage speed is measured with the help of the chain wheel 64 determined via an electronic control, the the laying carriage speed depending on that desired delay or course of delay, the laying width, which controls braking and acceleration phases etc.
  • the superstructure speed in position C is determined by the Sprocket 62 controlled.
  • the exit speed V A of the fleece 4 is dependent on the belt speed V E and on the superstructure speed and the laying carriage speed.

Description

Die Erfindung betrifft einen Vliesbandleger sowie ein Verfahren zum Herstellen eines Vlieses nach dem Oberbegriff des Verfahrens- und Vorrichtungshauptanspruchs.The invention relates to a nonwoven tape layer and a Process for producing a nonwoven according to the preamble of the main process and device claim.

Ein solcher Vliesbandleger mit der Typenbezeichnung "ETALEUR-NAPPEUR 390" ist von der Firma Etablissements ASSELIN, Elbeuf, Frankreich bekannt.Such a nonwoven tape layer with the type designation "ETALEUR-NAPPEUR 390" is from the company Etablissements ASSELIN, Elbeuf, France.

Ein solcher Vliesband- oder Vliesbandleger dient dazu, insbesondere von einer Krempel oder dergleichen angelieferte Faservliese, Faserflore, Spinnvliese oder dgl. auf ein mit einer vorbestimmten variablen Geschwindigkeit bewegtes Abführungsband abzulegen. Dabei wird der von der Krempel zugeführte Flor auf einem mit einer vorbestimmten Geschwindigkeit angetriebenen Zuführungsband transportiert. Innerhalb des Vliesbandlegers wird der Flor zumindest teilweise zwischen zwei Förderbändern transportiert, die sich mit gleicher Geschwindigkeit bewegen. Diese Förderbänder sind als endlos umlaufende Förderbänder gestaltet. Der Vliesbandleger benötigt zum möglichst gleichmässigen Ablegen des Flores hin- und hergehende Hauptwagen, nämlich einen Oberwagen und einen Legewagen, in denen Umlenkwalzen für die Führung und Umlenkung von beiden Förderbändern gelagert sind. Die Förderbänder sind außerdem über Umlenkrollen am Maschinenständer geführt. Der Vliesbandleger hat am Oberwagen einen offenen Bandeinlauf, wobei die beiden Förderbänder am Oberwagen aus unterschiedlichen Richtungen zusammen kommen und dort einen Bandeinlauf bilden, wobei zumindest das erste Förderband einen unter einem spitzen Winkel α zur Horizontalen schräg abwärts geneigten Bandabschnitt besitzt. Auf diesem Bandabschnitt und dem zugehörigen Förderband wird der Flor offen und ohne Abdeckung zugeführt. Diese Anordnung ist wichtig für die Geschwindigkeit des Vliesbandlegers.Such a nonwoven tape or nonwoven tape layer serves to especially of a card or the like delivered nonwovens, nonwoven fabrics, spunbonded fabrics or The like. At a predetermined variable speed to remove moving discharge belt. there the pile fed by the card is placed on a a predetermined speed driven feed belt transported. Inside the nonwoven belt layer the pile becomes at least partially between two Conveyor belts are transported with the same Move speed. These conveyor belts are as endless conveyor belts. The fleece belt layer needed for storing as evenly as possible des Flores back and forth carriage, namely an uppercarriage and a laying carriage, in which deflection rollers for guiding and redirecting both Conveyor belts are stored. The conveyor belts are also guided over pulleys on the machine stand. The nonwoven belt layer has an open belt inlet on the superstructure, the two conveyor belts on the superstructure different directions come together and there form a tape inlet, at least the first Conveyor belt a at an acute angle α Has horizontal sloping sloping band section. On this section of tape and the associated one The pile is fed open and without a cover. This arrangement is important for speed of the nonwoven belt layer.

Bei den Vliesbandlegern, insbesondere solchen, die mit hoher Geschwindigkeit arbeiten, können die plötzlichen Geschwindigkeitswechsel der Wagen einen unregelmässigen Verzug des Flores hervorrufen, und zwar wegen zeitlich veränderter Einregulierung der Wagen- und Bandgeschwindigkeiten durch die Auffederung des Rahmens und der Arbeitselemente. Bei einer plötzlichen Beschleunigung der Förderbänder kann das Vlies daher nicht sofort folgen. Es kommt bei den Vliesbandlegern darauf an, die Förderbänder und Wagen relativ zueinander so zu steuern, dass eine möglichst gleichmässige Ablage möglich ist.In the case of the nonwoven tape layers, especially those with work at high speed, the sudden Speed change of the car an irregular Cause delay of the Flores, because of time changed regulation of carriage and belt speeds by springing the frame and the Work items. With a sudden acceleration the conveyor belts cannot therefore immediately consequences. In the case of the nonwoven belt layers, it depends on the Conveyor belts and carriages relative to each other so too control that storage is as even as possible is possible.

Aus der DE-A-37 38 190 ist ein Vliesbandleger bekannt, bei dem der Oberwagen und der Legewagen einen gemeinsamen oder auch separaten Antrieb aufweisen, der die Wagen mit unterschiedlicher Geschwindigkeit in entgegengesetzter Richtung bewegt. Dabei läuft der Oberwagen stets mit der halben Geschwindigkeit des Legewagens und legt dabei den halben Weg des Legewagens zurück. Der Antrieb ist als Servo-Antrieb ausgebildet und mit einer frei programmierbaren Steuerung verbunden. Die Geschwindigkeit der Wagen kann damit über ihren Fahrweg beliebig verändert werden, wobei auch die Beschleunigungsphasen in den Umkehrpunkten der Fahrbewegung beliebig beeinflussbar sind. Die Austrittsgeschwindigkeit des Vlieses entspricht dabei stets der Vlieseinlaufgeschwindigkeit.From DE-A-37 38 190 a nonwoven band layer is known where the uppercarriage and the laying carriage have a common one or also have a separate drive that the Cars with different speeds in opposite Direction is moving. The uppercarriage runs always at half the speed of the laying carriage and cover half the way of the laying carriage. The Drive is designed as a servo drive and with one freely programmable control connected. The speed the car can use it to drive can be changed as desired, including the acceleration phases in the reversal points of the driving movement can be influenced at will. The exit speed the fleece always corresponds to the fleece inlet speed.

Aus der DE-A-26 09 396 ist ein Florleger in der Ausführung eines sogenannten Wagenlegers bekannt. Bei diesem wird nur das eine Förderband über den Legewagen und einen Ausgleichswagen geführt. Das andere Förderband ist über keinen dieser beiden Wagen geführt, sondern befindet sich nur auf dem Ausleger eines Speicherwagens. Das erstgenannte Förderband ist wiederum nicht mit dem Speicherwagen verbunden. Hierbei bewegen sich außerdem der Legewagen und der Speicherwagen mit unterschiedlichen Geschwindigkeiten.From DE-A-26 09 396 a pile layer is in the execution of a so-called wagon man. With this is only the one conveyor belt over the laying car and led a compensation car. The other conveyor belt is led over neither of these two cars, but is only on the boom of a storage trolley. The former conveyor belt is again not connected to the storage car. Here move also the laying car and the storage car with different ones Speeds.

Die FR-A-2 234 395 zeigt einen Vliesbandleger, bei dem beide Förderbänder über zwei Hauptwagen geführt sind. Hierbei gibt es einen geschlossenen und zudem stationären Bandeinlauf, der sich unabhängig von der Stellung des Oberwagens immer an der gleichen Steile befindet. Der Flor wird über ein Förderband zugeführt und tritt an einer ortsfesten Stelle zwischen zwei Umlenkrollen in den Spalt zwischen die zwei dort stationär umgelenkten Förderbänder ein. Von hier gelangt der Flor dann unter beidseitiger Anpressung zwischen den parallel laufenden Förderbändern zum Oberwagen. Hier werden beide Förderbänder im wesentlichen senkrecht nach unten umgelenkt, wobei sie in der einen Ausführungsform voneinander distanziert werden oder in der anderen Variante gemeinsam um eine große Rolle umgelenkt werden. Im ersten Fall kann sich durch den senkrecht nach unten laufenden Bandabschnitt der Flor vom unteren Förderband ablösen. In zweiten Fall führen die beiden gemeinsam umgelenkten Förderbänder durch ihre unterschiedlich großen Abstände von der Rollenachse und ihre dementsprechend unterschiedlichen Geschwindigkeiten zu Verspannungen und unerwünschten Beeinträchtigungen im Flor.FR-A-2 234 395 shows a nonwoven band layer in which both conveyor belts are guided over two main carriages. Here there is a closed and also stationary Belt infeed that is independent of the position of the superstructure is always on the same slope. The pile is fed on a conveyor belt and treads at a fixed location between two pulleys into the gap between the two deflected there stationary Conveyor belts. From here the pile arrives pressing on both sides between the parallel conveyor belts to the uppercarriage. Be here both conveyor belts essentially vertically downwards deflected, being in one embodiment from each other be distanced or in the other variant be redirected together around a major role. in the first case can be seen through the vertically downward running belt section of the pile from the lower conveyor belt peel off. In the second case, the two lead together deflected conveyor belts by their different large distances from the roller axis and their accordingly different speeds to tension and undesirable impairments in the Flor.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Herstellen von Vliesen sowie einen Vliesbandleger derart auszubilden, dass der Flor mit hohen Geschwindigkeiten einlaufen kann. The invention has for its object a method for the production of nonwovens and a nonwoven tape layer Form such that the pile at high speeds can break in.

Zur Lösung dieser Aufgabe dienen die Merkmale der Verfahrens- und Vorrichtungshauptansprüche 1 und 9.The features of the procedural and main device claims 1 and 9.

Die Erfindung sieht in vorteilhafter Weise vor, dass in dem Oberwagen zwei Umlenkwalzen für das den einlaufenden Flor transportierende Förderband angeordnet sind und dass die Umlenkwalzen derart zueinander versetzt angeordnet sind, dass sich ein unter einem spitzen Winkel α zur Horizontalen absinkender Abschnitt des ersten Förderbandes ergibt.The invention advantageously provides that in the uppercarriage two deflection rollers for the incoming Flor-transporting conveyor belt are arranged and that the deflecting rollers are offset from one another in this way are arranged so that one is under a pointed one Angle α to the horizontal section of the first conveyor belt results.

Ein Spannwagen hält stets das Hauptförderband gespannt. Der Spannwagen wird durch das Kraftübertragungselement in seine jeweilige Position gebracht und benötigt deshalb keinen separaten Antrieb.A tension wagon always keeps the main conveyor belt under tension. The tension carriage is driven by the power transmission element brought into its respective position and needed therefore no separate drive.

Vorzugsweise ist vorgesehen, dass in dem Oberwagen zwei versetzt zueinander angeordnete Umlenkwalzen für das zweite Förderband angeordnet sind, derart, dass sich auch für das zweite Förderband ein absinkender Abschnitt ergibt, der gemeinsam mit dem absinkenden Abschnitt des ersten Förderbandes einen Öffnungswinkel β zwischen den beiden Förderbändern im Oberwagen bildet. In der Einlaufzone vor den beiden unteren Umlenkwalzen des Oberwagens besteht dadurch ein großer Öffnungswinkel zwischen den beiden Förderbändern.It is preferably provided that two staggered deflecting rollers for the second conveyor belt are arranged such that a sinking section also for the second conveyor belt results, which together with the sinking Section of the first conveyor belt an opening angle β between the two conveyor belts in the superstructure forms. In the entry zone in front of the two lower ones There is a large deflection roller of the uppercarriage Opening angle between the two conveyor belts.

Der Öffnungswinkel β kann variabel einstellbar sein. Der Öffnungswinkel β ist aufgrund der Anordnung der auf der in der Zeichnung rechts angeordneten Umlenkwalzen des Oberwagens bis auf ca. 20° reduzierbar.The opening angle β can be variably adjustable. The opening angle β is due to the arrangement of the the deflection rollers arranged on the right in the drawing of the superstructure can be reduced to approx. 20 °.

Der Öffnungswinkel zwischen den beiden Förderbändern kann auch über 90° betragen.The opening angle between the two conveyor belts can also be over 90 °.

Das den einlaufenden Flor transportierende Förderband kann nach einem zunächst horizontalen Abschnitt vor dem Oberwagen einen unter einem Spitzwinkel α zur Horizontalen absinkenden Abschnitt im Bereich des Oberwagens aufweisen.The conveyor belt that transports the incoming pile can after an initially horizontal section before Superstructure one at an acute angle α to the horizontal sinking section in the area of the uppercarriage exhibit.

Im folgenden werden unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel der Erfindung näher erläutert.The following are with reference to the drawing an embodiment of the invention explained in more detail.

Es zeigen

Fig. 1
eine Prinzipskizze der Kopplung zwischen dem Oberwagen, dem Spannwagen sowie dem Legewagen und den Antrieben und
Fig. 2
einen erfindungsgemäßen Vliesbandleger mit einem offenen Bandeinlauf.
Show it
Fig. 1
a schematic diagram of the coupling between the uppercarriage, the tensioning carriage and the laying carriage and the drives and
Fig. 2
a nonwoven tape layer according to the invention with an open tape inlet.

Der Vliesbandleger 1 weist ein Zuführungsband 2 auf, über das ein Flor 4 oder dgl. von einer davor angeordneten Krempel mit einer gleichmäßigen aber veränderbaren Geschwindigkeit von beispielsweise 1,5 m/s zugeführt wird. Quer zur Förderrichtung des Zuführungsbandes 2 ist ein Abführungsband 6 auf Umlenkwalzen 8 angeordnet, auf dem quer und im Zickzack zur Anlieferungsrichtung abgelegt wird. Statt eines quer verlaufenden Abführungsbandes 6 kann auch ein längs, d.h. auch ein in derselben Richtung wie das Zuführungsband 2 laufendes Abführungsband 6 vorgesehen sein. Der Vliesbandleger 1 ist mit drei Wagenausgerüste, und zwar mit einem Oberwagen 10, einem Spannwagen 12 sowie einem Legewagen 14. Der Vliesbandleger 1 ist mit zwei endlos umlaufenden Förderbändern 18 und 20 versehen, die zumindest teilweise den Flor 4 zwischen sich aufnehmen, transportieren und führen.The nonwoven belt layer 1 has a feed belt 2, over which a pile 4 or the like of an arranged in front stuff with a steady but changeable speed of, for example, 1.5 m / s is supplied. Across The conveying direction of the feed belt 2 is a discharge belt 6 arranged on deflection rollers 8, on the transverse and in Zigzag to the direction of delivery. Instead of a transverse discharge belt 6 can also be a lengthways, i.e. also one in the same direction as the feed belt 2 running discharge belt 6 is provided his. The nonwoven banding machine 1 is equipped with three trolleys, with a superstructure 10, a tension car 12 as well as a laying carriage 14. The fleece band layer 1 is with provided two endless conveyor belts 18 and 20, which at least partially take up the pile 4 between them, transport and guide.

Das erste Förderband 18 übernimmt im Bereich des Vlieseinlaufs den Flor 4 von dem Zuführungsband 2. An dieser Stelle ist eine Umlenkwalze 24 vorgesehen, die gleichzeitig den Bandantrieb für das erste Förderband 18 aufnehmen kann. Die Bandgeschwindigkeit des Förderbandes 18 wird von der Krempel vorgegeben. Von dem Vlieseinlauf gelangt das Förderband 18 zunächst auf in. dem hin- und herbewegten Oberwagen 10 gelagerte Umlenkwalzen 26',26'', die das Förderband 18 um 180° umlenken und parallel zurückführen zu einer in einem zuführungsseitigen Maschinenständer 54a gelagerten ortsfesten Umlenkwalze 28 für das erste Förderband 18. Die erneute Umlenkung um 180° führt dann das Förderband zu dem hin- und herbeweglichen Legewagen 14, der über die eingestellte Legebreite hinund herbewegt wird.The first conveyor belt 18 takes over in the area of the fleece inlet the pile 4 from the feed belt 2. On this A deflection roller 24 is provided at the same time take up the belt drive for the first conveyor belt 18 can. The belt speed of the conveyor belt 18 is determined by the clutter. From the fleece inlet the conveyor belt 18 first goes back and forth moved superstructure 10 supported deflection rollers 26 ', 26' ', which deflect the conveyor belt 18 by 180 ° and parallel return to one in a feed side machine stand 54a mounted stationary guide roller 28 for the first conveyor belt 18. The redirection by 180 ° then guides the conveyor belt to the reciprocating one Laying carriage 14, which over and above the set laying width is moved.

Der Legewagen 14 ist mit einer Umlenkwalze 30 für das erste Förderband versehen, von wo aus das erste Förderband 18 zurückläuft zum Floreinlauf. Hierbei wird das Förderband 18 über mindestens eine ortsfeste, z.B. in dem Maschinenständer 54a gelagerte Umlenkwalze 32,34 erneut um 180° umgelenkt und dem hin- und herbeweglichen Spannwagen 12 zugeführt. Über die am Spannwagen 12 gelagerte Umlenkwalze 36 wird das erste Förderband letztlich wieder der ersten Umlenkwalze 24 zugeführt.The laying carriage 14 is equipped with a deflection roller 30 for the provided the first conveyor belt from where the first conveyor belt 18 runs back to the pile inlet. Here is the Conveyor belt 18 over at least one stationary, e.g. by doing Machine stand 54a supported deflection roller 32,34 again deflected by 180 ° and the reciprocating Spannwagen 12 fed. About the 12 mounted on the wagon Deflection roller 36 ultimately becomes the first conveyor belt again fed to the first deflection roller 24.

Das zweite endlos mit der gleichen Geschwindigkeit wie das erste Förderband umlaufende Förderband 20 wird über am Oberwagen 10 gelagerte Umlenkwalzen 38',38'' derart umgelenkt, daß der von dem Floreinlauf zugeführte Flor 4 zwischen den Umlenkwalzen 26', 26'' und den Umlenkwalzen. 38',38" des Oberwagens geführt wird und transportiert wird. Über eine weitere Umlenkwalze 40 des Oberwagens wird das Förderband 20 in die gleiche Richtung umgelenkt wie das erste Förderband 18 durch die Umlenkwalzen 26',26", so daß der Flor 4 zwischen den beiden Förderbändern 18 und 20 um die Umlenkwalze 28 bis zur Umlenkwalze 30 des Legewagens 14 geführt wird. Das Förderband 20 wird über zwei in dem Legewagen 14 gelagerte Umlenkwalzen 42,44 zweifach umgelenkt, wobei die zweite Umlenkwalze 44 zusammen mit der Umlenkwalze 30 des Legewagens 14 an der Austrittsstelle 46 des Flores 4 den Flor nochmals letztmalig zwischen den beiden Förderbändern 18,20 führt. Der Rücklauf des Förderbandes 20 zu der Umlenkwalze 38 des Oberwagens 10 erfolgt dann ähnlich wie bei dem Förderband 18 über mindestens eine ortsfeste Umlenkwalze 48,50.The second endlessly at the same speed as the first conveyor belt revolving conveyor belt 20 is over deflection rollers 38 ', 38' 'mounted on the superstructure 10 in this way deflected that the pile 4 fed from the pile inlet between the deflection rollers 26 ', 26' 'and the deflection rollers. 38 ', 38 "of the superstructure is guided and transported becomes. Via a further deflection roller 40 of the uppercarriage the conveyor belt 20 is deflected in the same direction like the first conveyor belt 18 through the deflection rollers 26 ', 26 ", so that the pile 4 between the two conveyor belts 18 and 20 around the deflection roller 28 to the deflection roller 30 of the laying carriage 14 is guided. The conveyor belt 20 is over two guide rollers stored in the laying carriage 14 42, 44 deflected twice, the second deflection roller 44 together with the deflection roller 30 of the laying carriage 14 on the Exit point 46 of the pile 4 the pile again for the last time leads between the two conveyor belts 18, 20. The Return of the conveyor belt 20 to the deflection roller 38 of the Upper carriage 10 then takes place similarly to the conveyor belt 18 via at least one stationary deflection roller 48.50.

Für den Antrieb des Oberwagens 10, des Spannwagens 12 und des Legewagens 14 ist, wie aus Fig. 1 ersichtlich, eine Antriebskette 52 vorgesehen, deren Enden ortsfest an dem Maschinenständer 54b verankert sind. Die Antriebskette 52 ist an jedem Wagen über ein Kettenrad 56,58,60 um 180° umgelenkt. Außerdem wird die Antriebskette 52 von zwei jeweils mit einem elektronisch gesteuerten Antrieb versehenen Kettenrädern 62,64 ebenfalls um 180° umgelenkt. Die Antriebskette 52 wird also von der Befestigungsstelle am Maschinenständer 54b über das Kettenrad 56 des Oberwagens 10 zum Kettenrad 62 des Antriebsmotors für den Oberwagen, dann über das Kettenrad 58 des Spannwagens 12 zum Kettenrad 64 des Antriebs für den Legewagen 14 und das Kettenrad 60 des Legewagens 14 wieder zu der zweiten Befestigungsstelle an dem Maschinenständer 54b geführt.For driving the superstructure 10, the tensioning carriage 12 and of the laying carriage 14, as can be seen from FIG. 1, is a drive chain 52 provided, the ends of which are fixed to the Machine stand 54b are anchored. The drive chain 52 is on each car via a sprocket 56,58,60 by 180 ° diverted. In addition, the drive chain 52 of two each with an electronically controlled drive provided sprockets 62,64 also deflected by 180 °. The drive chain 52 is thus from the attachment point on the machine stand 54b via the chain wheel 56 of the upper carriage 10 to the sprocket 62 of the drive motor for the uppercarriage, then over the sprocket 58 of the tensioning carriage 12 to the chain wheel 64 of the drive for the laying carriage 14 and the sprocket 60 of the laying carriage 14 again to the second Attachment point performed on the machine stand 54b.

Die Rückstellbewegung des Oberwagens 10, des Spannwagens 12 und des Legewagens 14 wird beispielsweise mit einem geeigneten Endlosförderband, nämlich dem Förderband 18 bewirkt. Je nach Steuerung des Kettenrades 62 über den elektronisch gesteuerten Antrieb läßt sich folglich die Position des Oberwagens bestimmen, während das Kettenrad 64 die Position des Legewagens bestimmt.The return movement of the superstructure 10, the tensioning carriage 12 and the laying carriage 14 is, for example, with a suitable endless conveyor belt, namely the conveyor belt 18 causes. Depending on the control of the sprocket 62 on the electronically controlled drive can consequently be the Determine the position of the superstructure while the sprocket 64 determines the position of the laying carriage.

Die Position des Spannwagens 12 ergibt sich aus der Bewegung der beiden Kettenräder 62 und 64, so daß der Spannwagen keinen eigenen Antrieb benötigt.The position of the tensioning carriage 12 results from the movement of the two sprockets 62 and 64, so that the Tensioning carriage does not require its own drive.

Die beiden Kettenräder 62 und 64 ermöglichen im Zusammenhang mit dem Spannwagen 12 eine völlig unbhängige Steuerung der Bewegung des Legewagens und der Bewegung des Oberwagens.The two sprockets 62 and 64 allow in connection with the tension wagon 12 a completely independent Control of the movement of the laying carriage and the movement of the uppercarriage.

Durch eine entsprechende Steuerung der Antriebe der Kettenräder 62 und 64 lassen sich beim Ablegen des Flores 4 Verzüge und Stauchungen, beispielsweise im Bereich zwischen +- 15 % stufenlos und ruckfrei einstellen, auch über die gesamte Legebreite variabel.By appropriately controlling the drives of the sprockets 62 and 64, 4 warping and upsetting, for example in the range between + - 15%, can be adjusted continuously and smoothly when the pile is laid down, also variably over the entire laying width.

Im Oberwagen 10 sind jeweils zwei Umlenkwalzen 26',26'', 38',38'' für die Förderbänder vorgesehen, wobei der Flor 4 zwischen den Umlenkwalzen 26'' und 38'' mit kleinerem Radius hindurchgeführt wird. In der Einlaufzone vor den beiden Umlenkwalzen 26'' und 38'' besteht dadurch ein großer Öffnungswinkel zwischen den beiden Förderbändern 18 und 20, der im Ausführungsbeispiel über 90° beträgt. In the superstructure 10 there are two deflecting rollers 26 ', 26' ', 38 ', 38' 'for the conveyor belts, the pile 4 between the deflection rollers 26 "and 38" with a smaller one Radius is passed. In the entry zone in front of the two deflection rollers 26 "and 38" thus exist large opening angle between the two conveyor belts 18 and 20, which in the exemplary embodiment is over 90 °.

Dieser Öffnungswinkel kann aber auch nur 20° bei unveränderter Position der Walzen 26' und 26'' betragen, oder variabel einstellbar sein. Dabei sind die Umlenkwalzen 26' und 26'' derart zueinander versetzt angeordnet, daß der absinkende Abschnitt des ersten Förderbandes 18 einen spitzen Winkel zur Horizontalen einnimmt.This opening angle can also be only 20 ° with unchanged Position of the rollers 26 'and 26' ', or be variably adjustable. Here are the deflection rollers 26 'and 26' 'arranged offset from one another such that the sinking section of the first conveyor belt 18 a takes an acute angle to the horizontal.

Im weiteren Verlauf der Florführung wird der Flor 4 bogenförmig oder auch polygonförmig der ortsfesten Umlenkwalze 28 zugeführt.In the further course of the pile guidance, the pile 4 arched or polygonal of the stationary guide roller 28 fed.

Im Legewagen 14 ist zusätzlich zu den Umlenkwalzen 30 und 44 oberhalb der Austrittsstelle 46 eine Führungswalze 41 gelagert, die das zweite Förderband 20 lenkt.In the laying carriage 14 is in addition to the guide rollers 30 and 44 above the exit point 46 a guide roller 41 stored, which directs the second conveyor belt 20.

Das Förderband 20 und das Förderband 21 werden vorzugsweise nur durch Friktion angetrieben, sie können aber auch durch Kopplung mit dem Förderband 18 angetrieben sein oder mit einem eigenen Antrieb versehen sein.The conveyor belt 20 and the conveyor belt 21 are preferred only driven by friction, but they can also driven by coupling to the conveyor belt 18 be or be provided with its own drive.

Hinsichtlich der Antriebskette 52 weist die Kettenführung bei dem Kettenrad 62 zwei zusätzliche Führungsräder 61,63 auf, die vor und hinter dem Kettenrad 62 angeordnet sind.With regard to the drive chain 52, the chain guide two additional guide wheels 61, 63 for the chain wheel 62 on, which are arranged in front of and behind the sprocket 62.

Die Kettenräder 62 und 64 sowie die Umlenkwalze 24 sind mit geeigneten Drehgebern versehen, um der elektronischen Steuerung Geschwindigkeitssignale zu übertragen.The chain wheels 62 and 64 and the deflection roller 24 are provided with suitable encoders to the electronic Control to transmit speed signals.

Anstelle einer Antriebskette kann selbstverständlich auch ein Synchronriemen oder dgl. verwendet werden.Instead of a drive chain, of course, too a timing belt or the like can be used.

Die Umkehrpunkte für die Legewagenfahrt werden von der elektronischen Steuerung, durch entsprechenden Antrieb des Kettenrades 64, festgelegt.The reversal points for the laying carriage trip are from the electronic control, by appropriate drive of the sprocket 64.

Aus den Figuren ist entnehmbar, daß der Spannwagen im Vergleich zum Legewagen nur etwa die halbe Legebreite hin- und herfährt. Auch der Oberwagen fährt nur etwa die halbe Legebreite hin und her, allerdings in bezug auf die Mitte der Legebreite um einen bestimmten Weg versetzt.From the figures it can be seen that the tension carriage in Compared to the laying wagon, only about half the laying width drives back and forth. The superstructure also only drives about half the laying width back and forth, but in relation to the Staggered a certain distance in the middle of the laying width.

Der Spannwagen 12 dient dazu, das für die zusätzliche Florspeicherung benötigte Förderband zu spannen.The tension carriage 12 is used for the additional To store the required conveyor belt.

In der Position A beträgt die Bandgeschwindigkeit des ersten Förderbandes 18 bzw. die Umfangsgeschwindigkeit der Umlenkwalze 24 VE. Diese Geschwindigkeit ist vorzugsweise konstant und bleibt für Vor- und Rücklauf des Legewagens unverändert.In position A, the belt speed of the first conveyor belt 18 or the peripheral speed of the deflection roller is 24 V E. This speed is preferably constant and remains unchanged for the forward and reverse run of the laying carriage.

Die Legewagengeschwindigkeit wird mit Hilfe des Kettenrades 64 über eine elektronische Steuerung bestimmt, die die Legewagengeschwindigkeit in Abhängigkeit von dem gewünschten Verzug oder Verzugsverlauf, der Legebreite, der Brems- und Beschleunigungsphasen usw. steuert.The laying carriage speed is measured with the help of the chain wheel 64 determined via an electronic control, the the laying carriage speed depending on that desired delay or course of delay, the laying width, which controls braking and acceleration phases etc.

Die Oberwagengeschwindigkeit in Position C wird über das Kettenrad 62 gesteuert.The superstructure speed in position C is determined by the Sprocket 62 controlled.

Die Austrittsgeschwindigkeit VA des Vlieses 4 ist abhängig von der Bandgeschwindigkeit VE sowie von der Oberwagengeschwindigkeit und der Legewagengeschwindigkeit.The exit speed V A of the fleece 4 is dependent on the belt speed V E and on the superstructure speed and the laying carriage speed.

Die Geschwindigkeiten in den Positionen B, G, C und H werden von elektronischen Steuerungen bestimmt, während sich die Geschwindigkeiten in den Positionen D, E, F und K aus der mechanischen Abhängigkeit zwangsläufig ergeben.The speeds in positions B, G, C and H are determined by electronic controls while the speeds in positions D, E, F and K inevitably result from the mechanical dependency.

Claims (10)

  1. Web-laying machine, with at least two carriages (10, 14), to be precise an upper carriage (10) and a laying carriage (14), which move to and fro and are accelerated at the reversal points of their travel, and with at least two endlessly rotating conveyor belts (18, 20) which are guided on the upper carriage (10) and on the laying carriage (14) via deflecting rollers (26', 26", 28, 30, 32, 34, 36, 24; 38', 38'', 40, 28, 41, 42, 44, 48, 50) in a machine stand (54a, 54b) and between which the incoming web (4) is received, guided and transported at least between the upper carriage (10) and the laying carriage (14), the upper carriage (10) having arranged in it two deflecting rollers (26', 26' ') for the conveyor belt (18) transporting, open, the incoming web (4), and the deflecting rollers (26', 26'') being arranged so as to be offset to one another in such a way as to result in a portion of the first conveyor belt (18) which descends at an acute angle α to the horizontal, characterized in that at least one conveyor belt (18) is guided around a deflecting roller (36) on a tension carriage (12).
  2. Web-laying machine according to Claim 1, characterized in that the web-laying machine (1) has an electronic control for the carriage drives.
  3. Web-laying machine according to Claim 1 or 2, characterized in that two deflecting rollers (38', 38'') for the second conveyor belt (20), which are arranged offset to one another, are arranged in the upper carriage (10), in such a way as also to result, for the second conveyor belt, in a descending portion which, together with the descending portion of the first conveyor belt (18), forms an opening angle β between the two conveyor belts (18, 20) in the upper carriage (10).
  4. Web-laying machine according to Claim 3, characterized in that the opening angle β can be set variably.
  5. Web-laying machine according to one of Claims 3 or 4, characterized in that the opening angle β can be reduced to approximately 20° by virtue of the arrangement of the rollers (38', 38'').
  6. Web-laying machine according to one of Claims 1 to 5, characterized in that the laying carriage (14) has, in addition to the deflecting rollers (30, 44) for the respective conveyor belts (18, 20), above the exit point (46), a guide roller (41) for one of the conveyor belts (18, 20).
  7. Web-laying machine according to one of Claims 1 to 6, characterized in that the deflecting rollers (26'', 38") have a smaller diameter than the deflecting rollers (26', 38').
  8. Web-laying machine according to one of Claims 1 to 7, characterized in that the upper carriage (10), the laying carriage (14) and the tension carriage (12) are coupled via a single force transmission element (52), and in that a drive (62), arranged between the upper carriage (10) and the tension carriage (12), for the upper carriage (10) and a drive (64), arranged between the tension carriage (12) and the laying carriage (14), for the laying carriage (14) act on the force transmission element (52) independently of one another.
  9. Method for producing a lap
    by the reception of a web (4) incoming, open, on a conveyor belt (18) between two endlessly rotating conveyor belts (18, 20) in an incoming zone in an upper carriage (10) of a web-laying machine, the said upper carriage being movable to and fro in the direction of the incoming web and deflecting the conveyor belts (18, 20),
    by the transportation of the web (4) between the conveyor belts (18, 20) over at least a portion of the distance between the upper carriage (10) and a laying carriage (14) of the web-laying machine (1), the said laying carriage being movable to and fro over the entire laying width and likewise deflecting the conveyor belts (18, 20), and
    by the depositing of the web (4) onto a discharge device (6) at an exit point (46) of the laying carriage (14),
    the web (4) first being delivered horizontally on one conveyor belt (18) in the incoming zone of the upper carriage (10) and subsequently being guided so as to descend at an acute angle α to the horizontal and then being received between the conveyor belts (18, 20),
    characterized in that at least one conveyor belt (18) is tautened by means of a tension carriage (12).
  10. Method according to Claim 9, characterized in that the carriage movements of the web-laying machine (1) are controlled electronically.
EP94104338A 1990-03-30 1991-03-27 Laying device and method for making a non-woven Expired - Lifetime EP0609907B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4010174 1990-03-30
DE4010174A DE4010174A1 (en) 1990-03-30 1990-03-30 METHOD FOR DEPOSITING A FLEECE OR THE LIKE, AND FLEECE STRAP
EP91906799A EP0521973B1 (en) 1990-03-30 1991-03-27 Process for laying a nonwoven or the like and nonwoven laying device

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EP91906799A Division EP0521973B1 (en) 1990-03-30 1991-03-27 Process for laying a nonwoven or the like and nonwoven laying device
EP91906799.1 Division 1991-03-27

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EP0609907A2 EP0609907A2 (en) 1994-08-10
EP0609907A3 EP0609907A3 (en) 1994-08-31
EP0609907B1 true EP0609907B1 (en) 2004-11-10

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EP91906799A Expired - Lifetime EP0521973B1 (en) 1990-03-30 1991-03-27 Process for laying a nonwoven or the like and nonwoven laying device
EP94104338A Expired - Lifetime EP0609907B1 (en) 1990-03-30 1991-03-27 Laying device and method for making a non-woven

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EP (2) EP0521973B1 (en)
JP (1) JPH05505858A (en)
DE (3) DE4010174A1 (en)
WO (1) WO1991015618A1 (en)

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US4914270A (en) * 1988-11-08 1990-04-03 University Of Southern California Method and apparatus for shaping articles using a laser beam
BE1002605A3 (en) * 1988-11-30 1991-04-09 Houget Duesberg Bosson PROCESS AND DEVICE FOR THE MANUFACTURE OF NONWOVEN TEXTILES.
US4984772A (en) * 1989-05-15 1991-01-15 E. I. Du Pont De Nemours And Company High speed crosslapper
IT1241874B (en) * 1990-07-18 1994-02-01 Veneto Feltrificio Spa METHOD AND PLANT FOR THE MANUFACTURE OF PITCHES FOR FELTS.
FR2677044B1 (en) * 1991-06-03 1994-04-29 Asselin Ets SPREADER-STEAMER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128391A1 (en) 2014-02-27 2015-09-03 Autefa Solutions Germany Gmbh Carding apparatus and carding method

Also Published As

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EP0609907A3 (en) 1994-08-31
DE4010174C2 (en) 1992-04-02
DE59106828D1 (en) 1995-12-07
EP0521973B1 (en) 1995-11-02
JPH05505858A (en) 1993-08-26
DE59109265D1 (en) 2004-12-16
US5353477A (en) 1994-10-11
US5400475A (en) 1995-03-28
EP0609907A2 (en) 1994-08-10
EP0521973A1 (en) 1993-01-13
DE4010174A1 (en) 1991-10-02
WO1991015618A1 (en) 1991-10-17

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