EP1574604B1 - Storage device - Google Patents

Storage device Download PDF

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Publication number
EP1574604B1
EP1574604B1 EP04005460A EP04005460A EP1574604B1 EP 1574604 B1 EP1574604 B1 EP 1574604B1 EP 04005460 A EP04005460 A EP 04005460A EP 04005460 A EP04005460 A EP 04005460A EP 1574604 B1 EP1574604 B1 EP 1574604B1
Authority
EP
European Patent Office
Prior art keywords
conveyor belts
sections
frame
guided
take
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.)
Expired - Fee Related
Application number
EP04005460A
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German (de)
French (fr)
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EP1574604A1 (en
Inventor
Joachim Dr.-Ing. Leger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oskar Dilo Maschinenfabrik KG
Original Assignee
Oskar Dilo Maschinenfabrik KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to AT04005460T priority Critical patent/ATE363556T1/en
Priority to DE502004003941T priority patent/DE502004003941D1/en
Priority to EP04005460A priority patent/EP1574604B1/en
Priority to EP04015488A priority patent/EP1574605B1/en
Priority to AT04015488T priority patent/ATE353380T1/en
Priority to DE502004002857T priority patent/DE502004002857D1/en
Priority to CNB2005100535498A priority patent/CN100510223C/en
Priority to CNA2005100535483A priority patent/CN1721592A/en
Priority to US11/075,122 priority patent/US7320155B2/en
Priority to US11/074,891 priority patent/US7320154B2/en
Publication of EP1574604A1 publication Critical patent/EP1574604A1/en
Application granted granted Critical
Publication of EP1574604B1 publication Critical patent/EP1574604B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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 invention relates to a device for picking up a web material and dispensing it with a speed that fluctuates over time, but on average matches the speed of picking up, according to the preamble of claim 1.
  • Such a device is known from US 5 590 442.
  • the known device serves as a pile storage between a working at a constant discharge speed pile fabricator and a working with changing speed recording nonwoven layer, which is designed as Horizontalleger (so-called. Flachtäfler).
  • Horizontalleger so-called. Flachtäfler
  • the pile memory is controlled according to the rotational speed of the laying belts of the web laying, which varies with the rhythm of the absolute driving speed of the laying carriage.
  • the known pile memory consists of a U-shaped extending web portion of variable length of an endlessly circulating conveyor belt which extends between a pile fabricator and the nonwoven and feeds the delivered from the pile fabric Flor the unwoven.
  • the conveyor belt faces an endlessly circulating pressure belt, which is guided around a first deflecting roller and covered there by the conveyor belt and which continues to run around a second deflecting roller, which is arranged parallel to the first deflecting roller.
  • the two guide rollers are rotatably mounted in a common frame, which is mounted transversely to the roller axes in a machine frame in the plane described by the axes of the two guide rollers.
  • the pressure belt In the U-shaped web section of the conveyor belt, the pressure belt is located close to the conveyor belt and is thus able to clamp the pile brought up by the conveyor belt.
  • the guide rollers holding the frame ie by changing the depth of immersion of the pressure belt in the U-shaped path portion of the conveyor belt, the length of the path that must take the pile between the pile generator and the nonwoven, changeable, so that a certain length of Flor can be cached if necessary.
  • the pile memory is thus able to match the uniform pile delivery speed of the pile fabric with the uneven pile picking speed of the batt layer.
  • the invention has for its object to provide a device of the type mentioned, which is structurally simple.
  • the guide roller which guides the two parallel conveyed conveyor belts on a variable length portion, together with two guide rollers over which the return portions of the conveyor belts run, stored in a common frame which is movable to the one of the two to change the storage buffer sections formed in parallel in its storage volume.
  • the storage of said frame can be made very simple. You can mount it on a movable carriage or hang it, for example, like a pendulum on a relatively long-arm handlebar. Any sliding guides are then unnecessary. It when the frame is pivotally mounted on the carriage or the handlebar is particularly advantageous. Is in this case in the path of one of the conveyor belts a Tensioning roller arranged, it is possible with their help to tension both conveyor belts, since the voltage of a conveyor belt is transmitted via the pivotally held frame to the other conveyor belt.
  • Such a construction is particularly advantageous in installations in which the storage device is combined as a pile buffer with a steep-arm leveler so that the conveyor belts of the buffer run continuously to the deposit of Flors at the free end of the laying arm of the batt and thus the pile store and connect the nonwoven layer integrally with each other.
  • Such a machine combination is also an object of the present invention. She has the advantage over a Flachtäfler that the pile is clamped on its entire path from the inlet to the cache to the filing on the deposit belt continuously between two parallel conveyor belts and is thus protected against any delay in this way.
  • first arm 2 also referred to as a feed arm
  • second arm 3 which is also referred to as a laying arm
  • the feed arm 2 is articulated at its lower end in the aforementioned machine frame, not shown.
  • the lower end can be moved by means of a stationary drive 4 and a toothed belt 5 across a deposit belt, of which in the drawing a guide roller 6 is shown schematically.
  • the depositing belt extends perpendicular to the direction of movement of the lower end of the laying arm 3 to the guide roller 6.
  • a cover 7 is connected, which is guided over a plurality of guide rollers 8 and extends over the depositing belt to the movement of the devisrms 3 caused turbulence at the delivery site B to keep away from the laid fleece and avoid wrinkling in the fleece.
  • a pile store 9 of variable volume is shown.
  • the pile memory 9 is essentially formed by two conveyor belts 10 and 11, which pass through the pile memory 9 and are also guided over the arms 2 and 3 of the skiving-fleece layer 1.
  • the two conveyor belts 10 and 11 together determine a receiving location A, at which one of a pile fabricator (not shown) and to be laid by the nonwoven layer 1 card web (also not shown) is inserted into a gap between the two conveyor belts 10 and 11.
  • the conveyor belts 10 and 11 extend as a pair via a first deflecting roller 12, a drive roller 13, a further deflecting roller 14 and over the arms 2 and 3 of the deflecting armature 1, in which the two arms 2 and 3 connecting joint over a guide roller 15 are guided.
  • the two deflection rollers 16 and 17 together determine a delivery location B, at which the pile brought up by the fleece layer 1 is deposited by reciprocating pivoting movements of the arms 2 and 3 from the laying arm 3 on the laying belt.
  • the conveyor belt 10 runs via a deflecting roller 18 arranged in the joint area of the arms 2 and 3, after leaving the feeding arm 2 via a further deflecting roller 19, a drive roller 20 and from there in a substantially U-shaped path whose vertex is formed by a deflecting roller 21 further guide roller 22 and a drive roller 23, where the location A is located.
  • the wide conveyor belt runs over a deflection roller 24 located in the articulated region of the arms 2 and 3 and after leaving the feed arm 2 via a deflection roller 25, a drive roller 26, a U-shaped path section, in the apex of which a deflection roller 27 is located, a deflecting tension roller 28 and a drive roller 29, which is located at the recording location A.
  • the guide rollers 21 and 27 located in the above-mentioned vertexes of the U-shaped path sections of the returning conveyor belts 10 and 11 are rotatably mounted in a frame 30 on which the first guide roller 12 is mounted to guide the paired leading sections of the conveyor belts 10 and 11 to run.
  • the frame 30 is pivotally mounted in the axis of the guide roller 12 on a frame-shaped link 31, which is shown in the drawing only schematically with a dash-dotted line and in a pivot bearing 32 in the machine frame (not shown) is suspended.
  • the deflecting tension roller 28 is attached to the tension arm of a hydraulic cylinder 33.
  • the tensile force applied by the hydraulic cylinder 33 to the tensioning roller 28 tensions the conveyor belt 11 and transmits via the deflection roller 27 and the frame 30, which acts as a two-armed lever and pivots about the axis of the deflection roller 12 common to the conveyor belts 10 and 11, via the deflection roller 21 to the return section of the other conveyor belt 11.
  • both conveyor belts 10 and 11 can be tensioned.
  • the conveyor belts 10 and 11 pass over a plurality of guide rollers 34 mounted on the arms, some of which rest alternately on one and on the other side of the paired outgoing conveyor belt sections to cause the conveyor belts to flutter Poor 2 and 3 to avoid.
  • the frame 30 remains in its state shown in Fig. 1.
  • the peripheral speed of the drive roller 13 becomes greater than that of the other drive rollers, the drive roller 13 pulls the frame 30 to the left in FIG. 1 via the paired conveyor belts and the guide roller 12, thereby shortening the length of the flow leading portions of the conveyor belts 10 and 11.
  • the length of the returning portions of the conveyor belts 10 and 11 is increased, since the deflection rollers 21 and 27 mounted on the frame 30, from which the return sections of the conveyor belts are deflected in a U-shape, are also moved to the left. Places moved to the left of the guide rollers 12, 21 and 27 are shown in dashed lines in the drawing with 12 ', 21' and 27 'located.
  • the frame 30 moves in Fig. 1 to the right, so that the guide rollers 12, 21 and 27 in the in Fig. 1 with 12 ", 21" zw.
  • the conveyor belts 10 and 11 remain tensioned.
  • the length section which the conveyor belts 10 and 11 determine between the receiving location A and the delivery location B can thus be changed. It is thus possible to temporarily change the speed of the delivery of the pile at the delivery location B in relation to the rate of receiving the pile at the location A.
  • This change is necessary in the fleece layer 1, because the speed at which the delivery point B, ie the lower end of the laying arm 3, moves over the depositing belt, can not be constant, because in the range of movement reversal points of the laying arm 3 whose speed has to braked to 0 and accelerated in the opposite direction again.
  • the laying arm 3 would continue to deliver the pile at a constant speed, then thickenings would result in the edge region of the nonwoven web laid by the fleece layer 1, but this must absolutely be avoided. It is therefore necessary to vary the speed at which the nap is released from the laying arm 3 in accordance with the moving speed of the laying arm 3 via the laying tape.
  • This variation of the delivery rate of the web from the nip between the idler rolls 16 and 17 at the discharge location B can be accomplished by proper control of the drive rolls 13, 20 and 26 with respect to the drive rolls 23 and 29, in which case the frame 30 is essentially one oscillating movement about the pivot point 32 performs, which moves the guide rollers 12, 21 and 27 between the points 12 ', 21' and 27 'on the one hand and the points 12 ", 21" and 27 "on the other hand back and forth and thereby the cached pile volume cyclically changed.
  • Both can be achieved with the aid of the tension roller 28, which is under the influence of the hydraulic cylinder 33, which pulls the tension roller 28 to the right in FIG. 2, which causes the frame 30 from its position shown in Fig. 1 in the counterclockwise direction is pivoted on the handlebar 31 in the position shown in Fig. 2.
  • the return section of the conveyor belt 11 is shortened, at the same time the return section of the other conveyor belt 10 is extended.
  • the laying width is 3,500 mm.
  • the length of the arms 2 and 3 between the guide roller 24 and the ends of the arms is about 2,800 mm.
  • the conveyor belts have a length of 21,500 mm each.
  • the path of travel of the steep-arm leveler 1 is 4,000 mm.
  • the laying arms In the retracted state of the arms 2 and 3, which is shown in Fig. 1, the laying arms enclose an angle of about 27 °, while in the extended state, which is shown in Fig. 2, an angle of about 133 °.
  • the inequality caused by the different arm positions of the yielding of the conveyor belts, due to the change in the wrap angle on the guide rollers 19 and 25, is compensated by an adjustment of about 200 mm of the tension roller 28 by the hydraulic cylinder 33.
  • the frame-shaped link 31, on which the frame 30 is suspended has an effective length (pendulum length) of 1,400 mm, while the distance between the guide rollers 21 and 27 on the frame 30 of the conveyor belt common guide roller 12 is 520 mm.
  • a space of about 2,100 mm in length before the steep-arm leveler 1 and about 1,750 mm in height, including the handlebar assembly 31 is required.
  • the common deflecting roller 12 mounted on the frame 30 could be designed as a drive roller, while the roller 13 is a free-running deflecting roller. It could also be mounted on the frame 30 guide rollers 21 and 27 drive rollers, while the rollers 20 and 26 are free-running guide rollers.
  • the frame 30 could instead be suspended from a handlebar 31, pivotally mounted in a movable carriage.
  • the nonwoven layer could have four articulated arms which are movable in the manner of a lattice grate, in order to prevent an increase in the height of the fleece layer.
  • the conveyor belts would then be paired over all four arms, so that the pile is always held in its entire path by two tight conveyor belts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A fleece laying apparatus comprises a camel back cross lapper having an infeed zone, an output conveyor, a supply arm, a layering arm with a lower end reciprocatingly guided on a path above the output conveyor, and two delivery transport belts; and variable-volume web buffering apparatus upstream of the infeed zone and adapted to hold a web between two take-up transport belts. A fleece laying apparatus comprises a camel back cross lapper having an infeed zone, an output conveyor, a supply arm, a layering arm with a lower end reciprocatingly guided on a path above the output conveyor, and transverse to an output direction of the output conveyor, and two delivery transport belts guided in juxtaposed fashion from the infeed zone to the layering-arm lower end; and variable-volume web buffering apparatus upstream of the infeed zone and adapted to hold a web between two take-up transport belts, at least one of which is one of the two delivery transport belts, the web buffering apparatus including a movable common frame, and frame rollers rotatably mounted on the common frame, the frame rollers including a two-belt roller deflecting the take-up transport belts by 180% and >=2 one-belt rollers, the common frame movable transverse the roller axes, at least one of the one-belt rollers wrapped by the one delivery transport belt, such belt guided through an upstream web take-up site to the infeed zone, where web is sandwiched between paired belts for the entire path from the take-up site to the output conveyor.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufnehmen eines bahnförmigen Materials und zum Abgeben desselben mit einer gegenüber der Geschwindigkeit beim Aufnehmen zeitlich schwankenden, im Mittel jedoch übereinstimmenden Geschwindigkeit, nach dem Oberbegriff des Anspruchs 1. Eine solche Vorrichtung ist aus US 5 590 442 bekannt.The invention relates to a device for picking up a web material and dispensing it with a speed that fluctuates over time, but on average matches the speed of picking up, according to the preamble of claim 1. Such a device is known from US 5 590 442.

Die bekannte Vorrichtung dient als Florspeicher zwischen einem mit konstanter Abgabegeschwindigkeit arbeitenden Florerzeuger und einem mit wechselnder Aufnahmegeschwindigkeit arbeitenden Vliesleger, der als Horizontalleger (sog. Flachtäfler) ausgebildet ist. In einem solchen Horizontalleger ändert sich die Flordurchlaufgeschwindigkeit innerhalb der Maschine während des Durchlaufs in Abhängigkeit von den Wagenbewegungen. Der Florspeicher ist dabei nach der Umlaufgeschwindigkeit der Legebänder des Vlieslegers gesteuert, die mit dem Rhythmus der absoluten Fahrgeschwindigkeit des Legewagens schwankt.The known device serves as a pile storage between a working at a constant discharge speed pile fabricator and a working with changing speed recording nonwoven layer, which is designed as Horizontalleger (so-called. Flachtäfler). In such a horizontal traverse, the pile through speed within the machine changes during the run depending on the carriage movements. The pile memory is controlled according to the rotational speed of the laying belts of the web laying, which varies with the rhythm of the absolute driving speed of the laying carriage.

Der bekannte Florspeicher besteht aus einem U-förmig verlaufenden Bahnabschnitt veränderlicher Länge eines endlos umlaufenden Förderbandes, das sich zwischen einem Florerzeuger und dem Vliesleger erstreckt und den von dem Florerzeuger abgegebenen Flor dem Vliesleger zuführt. In dem U-förmigen Bahnabschnitt steht dem Förderband ein endlos umlaufendes Andruckband gegenüber, das um eine erste Umlenkwalze geführt und dort von dem Förderband abgedeckt ist und das weiterhin um eine zweite Umlenkwalze läuft, die parallel zu der ersten Umlenkwalze angeordnet ist. Die beiden Umlenkwalzen sind in einem gemeinsamen Rahmen drehbar gelagert, der in einem Maschinengestell in der von den Achsen der beiden Umlenkwalzen beschriebenen Ebene quer zu den Walzenachsen verschiebbar gelagert ist. In dem U-förmigen Bahnabschnitt des Förderbandes liegt das Andruckband eng an dem Förderband an und ist somit in der Lage, den von dem Förderband herangeführten Flor zu klemmen. Durch Verschieben des die Umlenkwalzen haltenden Rahmens, d.h. durch Verändern der Eintauchtiefe des Andruckbandes in den U-förmigen Bahnabschnitt des Förderbandes ist die Länge des Weges, den der Flor zwischen dem Florerzeuger und dem Vliesleger nehmen muss, veränderbar, so dass eine gewisse Länge an Flor zwischengespeichert werden kann, wenn dieses erforderlich ist. Der Florspeicher ist daher in der Lage, die gleichmäßige Florabgabegeschwindigkeit des Florerzeugers mit der ungleichmäßigen Floraufnahmegeschwindigkeit des Vlieslegers in Einklang zu bringen.The known pile memory consists of a U-shaped extending web portion of variable length of an endlessly circulating conveyor belt which extends between a pile fabricator and the nonwoven and feeds the delivered from the pile fabric Flor the unwoven. In the U-shaped track section, the conveyor belt faces an endlessly circulating pressure belt, which is guided around a first deflecting roller and covered there by the conveyor belt and which continues to run around a second deflecting roller, which is arranged parallel to the first deflecting roller. The two guide rollers are rotatably mounted in a common frame, which is mounted transversely to the roller axes in a machine frame in the plane described by the axes of the two guide rollers. In the U-shaped web section of the conveyor belt, the pressure belt is located close to the conveyor belt and is thus able to clamp the pile brought up by the conveyor belt. By moving the guide rollers holding the frame, ie by changing the depth of immersion of the pressure belt in the U-shaped path portion of the conveyor belt, the length of the path that must take the pile between the pile generator and the nonwoven, changeable, so that a certain length of Flor can be cached if necessary. The pile memory is thus able to match the uniform pile delivery speed of the pile fabric with the uneven pile picking speed of the batt layer.

Das tiefere Eintauchen der das Förderband und das Andruckband umlenkenden, in dem beweglichen Rahmen gelagerten ersten Umlenkwalze in den U-förmig verlaufenden Wegabschnitt des Förderbandes erfordert für den Längenausgleich am Förderband eine entsprechend gegenläufige Bewegung zweier weiterer Umlenkwalzen, über die das zum Florerzeuger rücklaufende Trum des Förderbandes läuft. Diese Umlenkwalzen sind in einem Schlitten gelagert, der verschiebbar in demselben Maschinengestell geführt ist, in dem auch der genannte Rahmen verschiebbar geführt ist. Die Bewegung von Rahmen und Schlitten muss aufeinander abgestimmt werden, was einen besonderen Aufwand bedeutet, denn es muss für die Aufrechterhaltung der Klemmwirkung zwischen dem Förderband und dem Andruckband stets für eine ausreichende Spannung des Förderbandes gesorgt werden, um eine Beschädigung des empfindlichen, noch unverfestigten Flors in dem Florspeicher zu vermeiden.The deeper immersion of the conveyor belt and the pressure belt deflecting, mounted in the movable frame first guide roller in the U-shaped path portion of the conveyor belt requires for the length compensation on the conveyor belt a corresponding counter-rotating movement of two further guide rollers on the return to the Florerzeuger strand strand of the conveyor belt running. These guide rollers are mounted in a carriage which is guided displaceably in the same machine frame, in which also said frame is guided displaceably. The movement of frame and carriage must be coordinated, which means a special effort, because it must always be ensured to maintain the clamping effect between the conveyor belt and the pressure belt for a sufficient tension of the conveyor belt to damage the delicate, yet unverfestigten Flors to avoid in the pile store.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, die konstruktiv einfach aufgebaut ist.The invention has for its object to provide a device of the type mentioned, which is structurally simple.

Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst, vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand weiterer Ansprüche.This object is achieved by the features specified in claim 1, advantageous embodiments of the invention are the subject of further claims.

Bei der Erfindung ist die Umlenkwalze, die die beiden parallel miteinander geführten Förderbänder auf einem Abschnitt variabler Länge führt, zusammen mit zwei Umlenkwalzen, über die die rücklaufenden Abschnitte der Förderbänder laufen, in einem gemeinsamen Rahmen gelagert, der ortsveränderlich ist, um den von den beiden parallel geführten Förderbandabschnitten gebildeten Zwischenspeicher in seinem Speichervolumen zu verändern. Mit einer Vergrößerung des Laufweges der parallel geführten Förderbänder in dem Hinlaufabschnitt der beiden Förderbänder verkürzt sich gleichzeitig der Laufweg der Förderbänder auf ihrem Rücklaufabschnitt. Es braucht also nur ein einziger, die drei genannten Umlenkwalzen lagernder Rahmen in einem Maschinengestell bewegt zu werden, um das Volumen des Zwischenspeichers zu verändern.In the invention, the guide roller, which guides the two parallel conveyed conveyor belts on a variable length portion, together with two guide rollers over which the return portions of the conveyor belts run, stored in a common frame which is movable to the one of the two to change the storage buffer sections formed in parallel in its storage volume. With an increase in the path of the parallel guided conveyors in the Hinlaufabschnitt the two conveyor belts simultaneously reduces the path of the conveyor belts on their return section. Thus, it takes only a single, the three said guide rollers supporting frame to be moved in a machine frame to change the volume of the buffer.

Die Lagerung des genannten Rahmens kann sehr einfach ausgebildet werden. Man kann ihn an einem verfahrbaren Schlitten montieren oder ihn beispielsweise wie ein Pendel an einem relativ langarmigen Lenker aufhängen. Irgendwelche Gleitführungen sind dann entbehrlich. Besonders vorteilhaft ist es, wenn der Rahmen schwenkbar an dem Schlitten bzw. dem Lenker gelagert ist. Ist in diesem Falle im Laufweg eines der Förderbänder eine Spannwalze angeordnet, ist es mit deren Hilfe möglich, beide Förderbänder zu spannen, da die Spannung des einen Förderbandes über den schwenkbar gehaltenen Rahmen auf das andere Förderband übertragen wird.The storage of said frame can be made very simple. You can mount it on a movable carriage or hang it, for example, like a pendulum on a relatively long-arm handlebar. Any sliding guides are then unnecessary. It when the frame is pivotally mounted on the carriage or the handlebar is particularly advantageous. Is in this case in the path of one of the conveyor belts a Tensioning roller arranged, it is possible with their help to tension both conveyor belts, since the voltage of a conveyor belt is transmitted via the pivotally held frame to the other conveyor belt.

Eine solche Konstruktion ist besonders in Anlagen vorteilhaft, in denen die Speichervorrichtung als Flor-Zwischenspeicher mit einem Steilarm-Vliesleger so kombiniert ist, dass die Förderbänder des Zwischenspeichers durchgehend bis zur Ablegestelle des Flors am freien Ende des Legearms des Vlieslegers verlaufen und somit den Florspeicher und den Vliesleger integral miteinander verbinden. Eine solche Maschinenkombination ist ebenfalls Gegenstand der vorliegenden Erfindung. Sie hat gegenüber einem Flachtäfler den Vorteil, dass der Flor auf seinem gesamten Weg vom Einlauf in den Zwischenspeicher bis zur Ablage auf dem Ablegeband kontinuierlich zwischen zwei parallel zueinander verlaufenden Förderbändern geklemmt ist und dadurch gegen jeglichen Verzug auf diesem Weg geschützt ist.Such a construction is particularly advantageous in installations in which the storage device is combined as a pile buffer with a steep-arm leveler so that the conveyor belts of the buffer run continuously to the deposit of Flors at the free end of the laying arm of the batt and thus the pile store and connect the nonwoven layer integrally with each other. Such a machine combination is also an object of the present invention. She has the advantage over a Flachtäfler that the pile is clamped on its entire path from the inlet to the cache to the filing on the deposit belt continuously between two parallel conveyor belts and is thus protected against any delay in this way.

In einem Steilarm-Vliesleger hat die Bewegung der Arme zwangsläufig aufgrund der Gelenke, über die die Förderbänder geführt sind, eine Änderung von Umschlingungswinkeln an von die Förderbänder führenden Umlenkwalzen zur Folge, die kompensiert werden müssen, die bei den beiden Förderbändern aber teilweise entgegengesetzte Vorzeichen haben. Die genannte einzige Spannwalze ist in Verbindung mit dem schwenkbar gelagerten Rahmen in der Lage, diese technische Aufgabe auf sehr einfache Weise zu lösen. Details werden später erläutert.In a steep-arm leveling machine, the movement of the arms inevitably entails a change of angles of wrap on guide rollers leading from the conveyor belts, due to the joints over which the conveyor belts are guided, which must be compensated, but which have partly opposite signs in the two conveyor belts , Said single tension roller is in conjunction with the pivotally mounted frame able to solve this technical problem in a very simple manner. Details will be explained later.

Die Erfindung wird nachfolgend unter Bezugnahme auf ein in den Zeichnungen dargestelltes Ausführungsbeispiel näher erläutert. Es zeigt:

Figur 1
eine Vorrichtung nach der Erfindung in integraler Kombination mit einem Steilarm-Vliesleger in eingefahrenem Zustand des Legearms, und
Figur 2
die Vorrichtung nach Figur 1 in ausgefahrenem Zustand des Legearms.
The invention will be explained in more detail with reference to an exemplary embodiment shown in the drawings. It shows:
FIG. 1
a device according to the invention in integral combination with a steep-arm leveler in the retracted state of Legearms, and
FIG. 2
the device of Figure 1 in the extended state of Legearms.

In den Zeichnungen sind nur die wesentlichen Merkmale der Erfindung dargestellt, und dieses nur schematisch, da eine schematische Darstellung für das Verständnis der Erfindung ausreicht. So ist insbesondere in der Zeichnung ein Maschinengestell, das die zahlreichen, noch zu erläuternden Elemente hält und lagert, nicht dargestellt.In the drawings, only the essential features of the invention are shown, and this only schematically, since a schematic representation is sufficient for understanding the invention. Thus, in particular in the drawing, a machine frame that holds and stores the numerous, yet to be explained elements, not shown.

In Figur 1 erkennt man von dem Steilarm-Vliesleger, der insgesamt mit 1 bezeichnet ist, einen ersten Arm 2, auch als Zuführarm bezeichnet und einen zweiten Arm 3, der auch als Legearm bezeichnet wird. Der Zuführarm 2 ist an seinem unteren Ende in dem erwähnten, nicht dargestellten Maschinengestell gelenkig gelagert. Am oberen Ende des Zuführarms 2 ist der Legearm 3 angelenkt, dessen unteres Ende mittels eines ortsfesten Antriebs 4 und eines Zahnriemens 5 quer über einem Ablegeband verfahren werden kann, von dem in der Zeichnung eine Umlenkwalze 6 schematisch dargestellt ist. Das Ablegeband erstreckt sich senkrecht zur Bewegungsrichtung des unteren Endes des Legearms 3 um die Umlenkwalze 6. Mit dem unteren Ende des Legearms 3 ist ein Abdeckband 7 verbunden, das über mehrere Umlenkwalzen 8 geführt ist und sich über dem Ablegeband erstreckt, um durch die Bewegung des Legearms 3 hervorgerufene Turbulenzen am Abgabeort B von dem gelegten Vlies fernzuhalten und Faltenbildung im Vlies zu vermeiden.In FIG. 1, one recognizes a first arm 2, also referred to as a feed arm, and a second arm 3, which is also referred to as a laying arm, from the steep-arm nonwoven layer, which is denoted overall by 1. The feed arm 2 is articulated at its lower end in the aforementioned machine frame, not shown. At the upper end of Zuführarms 2 of the laying arm 3 is articulated, the lower end can be moved by means of a stationary drive 4 and a toothed belt 5 across a deposit belt, of which in the drawing a guide roller 6 is shown schematically. The depositing belt extends perpendicular to the direction of movement of the lower end of the laying arm 3 to the guide roller 6. To the lower end of the laying arm 3, a cover 7 is connected, which is guided over a plurality of guide rollers 8 and extends over the depositing belt to the movement of the Legearms 3 caused turbulence at the delivery site B to keep away from the laid fleece and avoid wrinkling in the fleece.

In den Zeichnungen ist im wesentlichen links von dem Steilarm-Vliesleger 1 ein Florspeicher 9 variablen Volumens dargestellt. Der Florspeicher 9 ist im wesentlichen von zwei Förderbändern 10 und 11 gebildet, die den Florspeicher 9 durchlaufen und auch über die Arme 2 und 3 des Steilarm-Vlieslegers 1 geführt sind.In the drawings, essentially, to the left of the steep-arm leveler 1, a pile store 9 of variable volume is shown. The pile memory 9 is essentially formed by two conveyor belts 10 and 11, which pass through the pile memory 9 and are also guided over the arms 2 and 3 of the skiving-fleece layer 1.

Die beiden Förderbänder 10 und 11 bestimmen zusammen einen Aufnahmeort A, an dem eine von einem Florerzeuger (nicht dargestellt) kommende und von dem Vliesleger 1 zu legende Florbahn (gleichfalls nicht dargestellt) in einen Spalt zwischen den beiden Förderbändern 10 und 11 eingeführt wird. Von dem Aufnahmeort A ausgehend verlaufen die Förderbänder 10 und 11 als ein Paar über eine erste Umlenkwalze 12, eine Antriebswalze 13, eine weitere Umlenkwalze 14 und über die Arme 2 und 3 des Steilarm Vlieslegers 1, wobei sie in dem die beiden Arme 2 und 3 verbindenden Gelenk über eine Umlenkwalze 15 geführt sind. Von dort laufen sie zu zwei Umlenkwalzen 16 und 17 am unteren Ende des Legearms 3, wo die beiden Förderbänder 10 und 11 voneinander getrennt werden, um unabhängig voneinander über die Arme 3 und 2 des Vlieslegers zum Aufnahmeort A zurückgeführt zu werden. Die beiden Umlenkwalzen 16 und 17 bestimmen zusammen einen Abgabeort B, an dem der von dem Vliesleger 1 herangeführte Flor durch hin und her gehende Schwenkbewegungen der Arme 2 und 3 vom Legearm 3 auf dem Ablegeband abgelegt wird.The two conveyor belts 10 and 11 together determine a receiving location A, at which one of a pile fabricator (not shown) and to be laid by the nonwoven layer 1 card web (also not shown) is inserted into a gap between the two conveyor belts 10 and 11. Starting from the receiving location A, the conveyor belts 10 and 11 extend as a pair via a first deflecting roller 12, a drive roller 13, a further deflecting roller 14 and over the arms 2 and 3 of the deflecting armature 1, in which the two arms 2 and 3 connecting joint over a guide roller 15 are guided. From there they run to two guide rollers 16 and 17 at the lower end of the laying arm 3, where the two conveyor belts 10 and 11 are separated from each other to be independently fed back to the receiving location A via the arms 3 and 2 of the batt. The two deflection rollers 16 and 17 together determine a delivery location B, at which the pile brought up by the fleece layer 1 is deposited by reciprocating pivoting movements of the arms 2 and 3 from the laying arm 3 on the laying belt.

Auf dem Weg zurück vom Abgabeort B zum Aufnahmeort A läuft das eine Förderband 10 über eine im Gelenkbereich der Arme 2 und 3 angeordnete Umlenkwalze 18, nach Verlassen des Zuführarms 2 über eine weitere Umlenkwalze 19, eine Antriebswalze 20 und von dort in einer im wesentlichen U-förmig verlaufenden Bahn, deren Scheitelpunkt von einer Umlenkwalze 21 gebildet wird, eine weitere Umlenkwalze 22 und eine Antriebswalze 23, wo sich der Aufnahmeort A befindet.On the way back from the delivery location B to the location A, the conveyor belt 10 runs via a deflecting roller 18 arranged in the joint area of the arms 2 and 3, after leaving the feeding arm 2 via a further deflecting roller 19, a drive roller 20 and from there in a substantially U-shaped path whose vertex is formed by a deflecting roller 21 further guide roller 22 and a drive roller 23, where the location A is located.

Das weite Förderband läuft über eine im Gelenkbereich der Arme 2 und 3 befindliche Umlenkwalze 24 und nach dem Verlassen des Zuführarms 2 über eine Umlenkwalze 25, eine Antriebswalze 26, einen U-förmigen Bahnabschnitt, in dessen Scheitelpunkt sich eine Umlenkwalze 27 befindet, eine umlenkende Spannwalze 28 und eine Antriebswalze 29, die sich am Aufnahmeort A befindet.The wide conveyor belt runs over a deflection roller 24 located in the articulated region of the arms 2 and 3 and after leaving the feed arm 2 via a deflection roller 25, a drive roller 26, a U-shaped path section, in the apex of which a deflection roller 27 is located, a deflecting tension roller 28 and a drive roller 29, which is located at the recording location A.

Die in den genannten Scheitelpunkten der U-förmigen Wegabschnitte der rücklaufenden Förderbänder 10 und 11 befindlichen Umlenkwalzen 21 und 27 sind in einem Rahmen 30 drehbar gelagert, an dem auch die erste Umlenkwalze 12 gelagert ist, um den die paarig geführten Hinlaufabschnitte der Förderbänder 10 und 11 laufen. Der Rahmen 30 ist in der Achse der Umlenkwalze 12 schwenkbar an einem rahmenförmigen Lenker 31 angebracht, der in der Zeichnung nur schematisch mit einer strichpunktierten Linie dargestellt ist und in einem Schwenklager 32 im Maschinengestell (nicht dargestellt) aufgehängt ist.The guide rollers 21 and 27 located in the above-mentioned vertexes of the U-shaped path sections of the returning conveyor belts 10 and 11 are rotatably mounted in a frame 30 on which the first guide roller 12 is mounted to guide the paired leading sections of the conveyor belts 10 and 11 to run. The frame 30 is pivotally mounted in the axis of the guide roller 12 on a frame-shaped link 31, which is shown in the drawing only schematically with a dash-dotted line and in a pivot bearing 32 in the machine frame (not shown) is suspended.

Die umlenkende Spannwalze 28 ist am Zugarm eines Hydraulikzylinders 33 angebracht. Die von dem Hydraulikzylinder 33 auf die Spannwalze 28 aufgebrachte Zugkraft spannt das Förderband 11 und überträgt sich über die Umlenkwalze 27 und den Rahmen 30, der als zweiarmiger Hebel wirkt und um die Achse der den Förderbändern 10 und 11 gemeinsamen Umlenkwalze 12 schwenkt, über die Umlenkwalze 21 auf den Rücklaufabschnitt des anderen Förderbandes 11. Mit einem einzigen Hydraulikzylinder 33 können also beide Förderbänder 10 und 11 gespannt werden.The deflecting tension roller 28 is attached to the tension arm of a hydraulic cylinder 33. The tensile force applied by the hydraulic cylinder 33 to the tensioning roller 28 tensions the conveyor belt 11 and transmits via the deflection roller 27 and the frame 30, which acts as a two-armed lever and pivots about the axis of the deflection roller 12 common to the conveyor belts 10 and 11, via the deflection roller 21 to the return section of the other conveyor belt 11. Thus, with a single hydraulic cylinder 33 both conveyor belts 10 and 11 can be tensioned.

Auf ihrem Weg über die Arme 2 und 3 laufen die Förderbänder 10 und 11 über mehrere an den Armen gelagerte Führungswalzen 34, von denen einige abwechselnd auf der einen und auf der anderen Seite der paarig geführten hinlaufenden Förderbandabschnitte anliegen, um ein Flattern der Förderbänder an den Armen 2 und 3 zu vermeiden.On their way across the arms 2 and 3, the conveyor belts 10 and 11 pass over a plurality of guide rollers 34 mounted on the arms, some of which rest alternately on one and on the other side of the paired outgoing conveyor belt sections to cause the conveyor belts to flutter Poor 2 and 3 to avoid.

Nachfolgend seien verschiedene Betriebszustände betrachtet und erläutert.Below, various operating conditions are considered and explained.

Solange die Antriebswalzen 13, 20, 23, 26 und 29 gleiche Umfangsgeschwindigkeiten haben, verharrt der Rahmen 30 in seinem in Fig. 1 gezeigten Zustand. Wenn die Umfangsgeschwindigkeit der Antriebswalze 13 gegenüber der der anderen Antriebswalzen größer wird, zieht die Antriebswalze 13 über die gepaarten Förderbänder und die Umlenkwalze 12 den Rahmen 30 in Fig. 1 nach links, wodurch sich die Länge der florführenden Abschnitte der Förderbänder 10 und 11 verkürzt. Gleichzeitig aber wird die Länge der rücklaufenden Abschnitte der Förderbänder 10 und 11 vergrößert, da die am Rahmen 30 gelagerten Umlenkwalzen 21 und 27, von denen die Rücklaufabschnitte der Förderbänder U-förmig umgelenkt werden, gleichfalls nach links bewegt werden. Nach links bewegte Orte der Umlenkwalzen 12, 21 und 27 sind in der Zeichnung gestrichelt mit 12', 21' bzw. 27' eingezeichnet.As long as the drive rollers 13, 20, 23, 26 and 29 have the same peripheral speeds, the frame 30 remains in its state shown in Fig. 1. When the peripheral speed of the drive roller 13 becomes greater than that of the other drive rollers, the drive roller 13 pulls the frame 30 to the left in FIG. 1 via the paired conveyor belts and the guide roller 12, thereby shortening the length of the flow leading portions of the conveyor belts 10 and 11. At the same time, however, the length of the returning portions of the conveyor belts 10 and 11 is increased, since the deflection rollers 21 and 27 mounted on the frame 30, from which the return sections of the conveyor belts are deflected in a U-shape, are also moved to the left. Places moved to the left of the guide rollers 12, 21 and 27 are shown in dashed lines in the drawing with 12 ', 21' and 27 'located.

Wenn hingegen die Antriebsgeschwindigkeit der Antriebswalze 13 gegenüber denen der anderen Antriebswalzen kleiner wird, bewegt sich der Rahmen 30 in Fig. 1 nach rechts, so dass die Umlenkwalzen 12, 21 und 27 in die in Fig. 1 mit 12", 21 "zw. 27" gestrichelt eingezeichneten Stellungen gelangen. Da die Verstellung der Umlenkwalzen 12, 21 und 27 in gleichem Umfang erfolgt, bleiben die Förderbänder 10 und 11 gespannt.If, however, the drive speed of the drive roller 13 with respect to the other drive rollers is smaller, the frame 30 moves in Fig. 1 to the right, so that the guide rollers 12, 21 and 27 in the in Fig. 1 with 12 ", 21" zw. As the adjustment of the deflection rollers 12, 21 and 27 takes place to the same extent, the conveyor belts 10 and 11 remain tensioned.

Mit Hilfe der Bewegung des Rahmens 30 lässt sich somit der Längenabschnitt, den die Förderbänder 10 und 11 zwischen dem Aufnahmeort A und dem Abgabeort B bestimmen, verändern. Es ist damit möglich, die Geschwindigkeit der Florabgabe am Abgabeort B gegenüber der Floraufnahmegeschwindigkeit am Aufnahmeort A vorübergehend zu ändern. Diese Änderung ist bei dem Vliesleger 1 erforderlich, weil die Geschwindigkeit, mit der sich der Abgabeort B, d.h. das untere Ende des Legearms 3, über das Ablegeband bewegt, nicht konstant sein kann, denn im Bereich der Bewegungsumkehrpunkte des Legearms 3 muss dessen Geschwindigkeit bis auf 0 abgebremst und in die entgegengesetzte Richtung wieder beschleunigt werden. Würde während dieser Brems- und Beschleunigungsphasen der Legearm 3 den Flor weiter mit konstanter Geschwindigkeit abgeben, dann würden sich im Randbereich der von dem Vliesleger 1 gelegten Vliesbahn Verdickungen ergeben, was aber unbedingt vermieden werden muss. Es ist daher erforderlich, die Geschwindigkeit, mit der der Flor vom Legearm 3 abgegeben wird, entsprechend der Bewegungsgeschwindigkeit des Legearms 3 über das Ablegeband zu variieren. Diese Variation der Abgabegeschwindigkeit des Flors aus dem Spalt zwischen den Umlenkwalzen 16 und 17 am Abgabeort B kann durch passende Steuerung der Antriebswalzen 13, 20 und 26 gegenüber den Antriebswalzen 23 und 29 bewerkstelligt werden, wobei dann der Rahmen 30 eine im wesentlichen pendelnde Bewegung um den Schwenkpunkt 32 ausführt, die die Umlenkwalzen 12, 21 und 27 zwischen den Punkten 12', 21' und 27' einerseits und den Punkten 12", 21" und 27" andererseits hin und her bewegt und dadurch das zwischengespeicherte Florvolumen zyklisch verändert.With the aid of the movement of the frame 30, the length section which the conveyor belts 10 and 11 determine between the receiving location A and the delivery location B can thus be changed. It is thus possible to temporarily change the speed of the delivery of the pile at the delivery location B in relation to the rate of receiving the pile at the location A. This change is necessary in the fleece layer 1, because the speed at which the delivery point B, ie the lower end of the laying arm 3, moves over the depositing belt, can not be constant, because in the range of movement reversal points of the laying arm 3 whose speed has to braked to 0 and accelerated in the opposite direction again. If, during these braking and acceleration phases, the laying arm 3 would continue to deliver the pile at a constant speed, then thickenings would result in the edge region of the nonwoven web laid by the fleece layer 1, but this must absolutely be avoided. It is therefore necessary to vary the speed at which the nap is released from the laying arm 3 in accordance with the moving speed of the laying arm 3 via the laying tape. This variation of the delivery rate of the web from the nip between the idler rolls 16 and 17 at the discharge location B can be accomplished by proper control of the drive rolls 13, 20 and 26 with respect to the drive rolls 23 and 29, in which case the frame 30 is essentially one oscillating movement about the pivot point 32 performs, which moves the guide rollers 12, 21 and 27 between the points 12 ', 21' and 27 'on the one hand and the points 12 ", 21" and 27 "on the other hand back and forth and thereby the cached pile volume cyclically changed.

In Zusammenschau der Figuren 1 und 2 wird nun eine weitere Bewegungskomponente des Rahmens 30 erläutert. Fig. 2 zeigt den Vliesleger 1 im gestreckten Zustand von Zuführarm 2 und Legearm 3. Man erkennt aus Fig. 2 sehr schnell, dass die Umschlingungswinkel der Förderbänder 10 und 11 an den Umlenkwalzen 15, 18 und 24, die im Gelenkbereich der Arme 2 und 3 angeordnet sind, und an den Umlenkwalzen 14, 19 und 25, die im Bereich des festen Lagerpunktes des Zuführarms 2 angeordnet sind, gegenüber dem Zustand von Fig. 1 verändert sind. Während die Änderung der Umschlingungswinkel der paarig geführten Förderbandabschnitte und auch die Änderung der Umschlingungswinkel an den im Gelenkbereich der Arme 2 und 3 befindlichen Umlenkwalzen 18 und 24 für die Rücklaufabschnitte der Förderbänder keinen einander entgegengesetzten Einfluss auf die Förderbänder haben, ist der Umschlingungswinkel des Rücklaufabschnitts des einen Förderbandes 10 an der Umlenkwalze 19 in Fig. 2 gegenüber dem Zustand in Fig. 1 kleiner, der Umschlingungswinkel des rücklaufenden Abschnitts des anderen Förderbandes 11 an der Umlenkwalze 25 aber größer als beim Zustand in Fig. 1. Die Umschlingungswinkel der Förderbänder 10 und 11 an den letztgenannten Umlenkwalzen ändern sich also einander gegensinnig. Das erstgenannte Förderband 10 verlangt in seinem Rücklaufabschnitt eine Veränderung im Sinne einer Vergrößerung des Laufweges, während das zweitgenannte Förderband 11 in seinem Rücklaufabschnitt eine Veränderung im Sinne einer Verkleinerung des Laufweges verlangt. Beides kann mit Hilfe der Spannwalze 28 erreicht werden, die unter dem Einfluss des Hydraulikzylinders 33 steht, der in Fig. 2 die Spannwalze 28 nach rechts zieht, was dazu führt, dass der Rahmen 30 aus seiner in Fig. 1 gezeigten Stellung entgegen dem Uhrzeigersinn am Lenker 31 in die in Fig. 2 gezeigte Stellung verschwenkt wird. Der Rücklaufabschnitt des Förderbandes 11 wird verkürzt, gleichzeitig wird der Rücklaufabschnitt des anderen Förderbandes 10 verlängert.In conjunction with FIGS. 1 and 2, a further movement component of the frame 30 will now be explained. It can be seen from Fig. 2 very quickly that the wrap angle of the conveyor belts 10 and 11 to the guide rollers 15, 18 and 24, in the joint region of the arms 2 and 3 are arranged, and at the guide rollers 14, 19 and 25, which are arranged in the region of the fixed bearing point of the Zuführarms 2, compared to the state of Fig. 1 are changed. While the change of the wrap angle of the paired conveyor belt sections and also the change of the wrap angles at the return rollers 18 and 24 in the hinge region of the arms 2 and 3 do not have any opposite effect on the conveyor belts, the wrap angle of the return section of the one 1, the wrap angle of the returning portion of the other conveyor belt 11 on the guide roller 25 but larger than in the state in Fig. 1. The wrap angle of the conveyor belts 10 and 11 at The latter deflection rollers thus change in opposite directions. The former conveyor belt 10 requires in its return section a change in the sense of increasing the travel path, while the second-mentioned conveyor belt 11 in its return section requires a change in terms of a reduction of the travel path. Both can be achieved with the aid of the tension roller 28, which is under the influence of the hydraulic cylinder 33, which pulls the tension roller 28 to the right in FIG. 2, which causes the frame 30 from its position shown in Fig. 1 in the counterclockwise direction is pivoted on the handlebar 31 in the position shown in Fig. 2. The return section of the conveyor belt 11 is shortened, at the same time the return section of the other conveyor belt 10 is extended.

Es versteht sich, dass die Bewegungen des Rahmens 30 um das Schwenklager 32 des Lenkers 31 und die Schwenkbewegungen des Rahmens 30 am Lenker 31 um die Achse der die gepaarten Förderbänder 10 und 11 umlenkenden Walze 12 sich im Betrieb überlagern, weil die Kompensation des Geschwindigkeitsunterschiedes der Förderbänder 10 und 11 an Abgabeort B und Aufnahmeort A und die Kompensation der gegensinnigen Änderung von Walzenumschlingungswinkeln gleichzeitig stattfinden muss. Die Zeichnung zeigt, dass beides mit Hilfe einer äußerst einfach aufgebauten, besonders für Steilarm-Viesleger geeigneten Vorrichtung erzielt wird.It is understood that the movements of the frame 30 about the pivot bearing 32 of the handlebar 31 and the pivoting movements of the frame 30 on the handlebar 31 about the axis of the paired conveyor belts 10 and 11 deflecting roller 12 overlap in operation, because the compensation of the speed difference of Conveyor belts 10 and 11 at the point of delivery B and location A and the compensation of the opposite change must take place simultaneously of Walzenumschlingungswinkeln. The drawing shows that both are achieved with the help of a very simple design, especially for steep-arm Viesleger suitable device.

Für die Bemessung eines praktischen Ausführungsbeispiels seien folgende Daten für eine Anordnung, wie sie in den Fig. 1 und 2 dargestellt ist, genannt:For the dimensioning of a practical embodiment, the following data for an arrangement as shown in FIGS. 1 and 2 are given:

Die Legebreite betrage 3.500 mm. Die Länge der Arme 2 und 3 zwischen der Umlenkwalze 24 und den Enden den Arme beträgt jeweils etwa 2.800 mm. Die Förderbänder haben eine Länge von jeweils 21.500 mm. Der Bewegungsweg des Steilarm-Vlieslegers 1 ist 4.000 mm. Im eingefahrenen Zustand der Arme 2 und 3, der in Fig. 1 dargestellt ist, schließen die Legearme einen Winkel von etwa 27° ein, während sie im gestreckten Zustand, der in Fig. 2 dargestellt ist, einen Winkel von etwa 133° einschließen. Die durch die verschiedenen Armstellungen hervorgerufene Ungleichheit des Nachgebens der Förderbänder, bedingt durch die Änderung der Umschlingungswinkel an den Umlenkwalzen 19 und 25, wird durch eine Verstellung um etwa 200 mm der Spannwalze 28 durch den Hydraulikzylinder 33 kompensiert. Der rahmenförmige Lenker 31, an der der Rahmen 30 aufgehängt ist, hat eine wirksame Länge (Pendellänge) von 1.400 mm, während der Abstand der Umlenkwalzen 21 und 27 an dem Rahmen 30 von der den Förderbändern gemeinsamen Umlenkwalze 12 jeweils 520 mm beträgt. Für die Unterbringung des Speichers 9 wird ein Platz von etwa 2.100 mm Länge vor dem Steilarm-Vliesleger 1 und etwa 1.750 mm Höhe, einschließlich der Lenkeranordnung 31, benötigt.The laying width is 3,500 mm. The length of the arms 2 and 3 between the guide roller 24 and the ends of the arms is about 2,800 mm. The conveyor belts have a length of 21,500 mm each. The path of travel of the steep-arm leveler 1 is 4,000 mm. In the retracted state of the arms 2 and 3, which is shown in Fig. 1, the laying arms enclose an angle of about 27 °, while in the extended state, which is shown in Fig. 2, an angle of about 133 °. The inequality caused by the different arm positions of the yielding of the conveyor belts, due to the change in the wrap angle on the guide rollers 19 and 25, is compensated by an adjustment of about 200 mm of the tension roller 28 by the hydraulic cylinder 33. The frame-shaped link 31, on which the frame 30 is suspended, has an effective length (pendulum length) of 1,400 mm, while the distance between the guide rollers 21 and 27 on the frame 30 of the conveyor belt common guide roller 12 is 520 mm. For the accommodation of the memory 9, a space of about 2,100 mm in length before the steep-arm leveler 1 and about 1,750 mm in height, including the handlebar assembly 31 is required.

Es sind zahlreiche Varianten möglich, die sich dem Fachmann im Lichte der vorliegenden Erfindung offenbaren. So könnte beispielsweise die am Rahmen 30 gelagerte gemeinsame Umlenkwalze 12 als Antriebswalze ausgebildet sein, während die Walze 13 eine freilaufende Umlenkwalze ist. Es könnten ferner die am Rahmen 30 gelagerten Umlenkwalzen 21 und 27 Antriebswalzen sein, während die Walzen 20 und 26 freilaufende Umlenkwalzen sind. Der Rahmen 30 könnte anstatt an einem Lenker 31 aufgehängt zu sein, in einem verfahrbaren Schlitten schwenkbar gelagert sein. Ferner könnte der Vliesleger für Erzielung einer größeren Legebreite vier Gelenkarme aufweisen, die nach Art eines Scherengitters beweglich sind, um ein Anwachsen der Bauhöhe des Vlieslegers zu vermeiden. Die Förderbänder würden dann gepaart über alle vier Arme geführt werden, so dass der Flor auf seinem gesamten Weg stets von zwei eng anliegenden Förderbändern gehalten wird.Numerous variants are possible, which will be apparent to those skilled in the art in light of the present invention. Thus, for example, the common deflecting roller 12 mounted on the frame 30 could be designed as a drive roller, while the roller 13 is a free-running deflecting roller. It could also be mounted on the frame 30 guide rollers 21 and 27 drive rollers, while the rollers 20 and 26 are free-running guide rollers. The frame 30 could instead be suspended from a handlebar 31, pivotally mounted in a movable carriage. Furthermore, to achieve a greater laying width, the nonwoven layer could have four articulated arms which are movable in the manner of a lattice grate, in order to prevent an increase in the height of the fleece layer. The conveyor belts would then be paired over all four arms, so that the pile is always held in its entire path by two tight conveyor belts.

Claims (10)

  1. A device for taking up a material web, which is supplied to the device at a take-up speed, and for outputting same at a speed that temporally fluctuates with respect to the take-up speed, but which on average is in agreement therewith, including
    - two endlessly revolving belt conveyors (10, 11), each comprising a feed section moved in the transport direction of the material, which together define a take-up site (A) for receiving the material web between these sections, and a output site (B) for outputting the material web, and which are closely guided in juxtaposition between the take-up site (A) and the output site (B) in order to clamp the material web between one another, and which comprise return sections guided separately from one another from the output site (B) to the take-up site (A),
    - a means (12, 21, 27, 30) by which the lengths of the feed sections are variable with respect to the lengths of the return sections in a manner maintaining the overall length of each of the conveyor belts (10, 11)
    - the feed sections of the conveyor belts (10,11) each have a substantially U-shaped path section in which these conveyor belt sections are jointly guided over a deflection roller (12) which is substantially half wrapped around by them,
    characterized in that
    the return sections of the conveyor belts (10, 11) are each guided over U-shaped path sections extending opposite to the U-shaped path section of the feed sections of the conveyor belts (10, 11) and each wrapping approximately half of a further deflection roller (21, 27), and
    the three deflection rollers (12, 21, 27) are rotatably supported in a common frame (30), which for the mutual length variation of the feed section and the return sections of the conveyor belts is held in a frame of the device (9) adjustably movably substantially in parallel to the path sections of the conveyor belts (10, 11) extending towards the deflection rollers (21, 21, 27) and away from them, respectively.
  2. A device as claimed in claim 1, characterized in that the frame (30) holding the deflection rollers (12, 21, 27) is movably held in the frame of the device (9) by a pendulum means (31).
  3. A device as claimed in claim 1 characterized in that the frame (30) holding the deflection rollers (12, 21, 27) is movably held in the frame of the device (9) by a carriage.
  4. A device as claimed in one of the preceding claims, characterized in that the frame (30) is pivotally supported around an axis of the common deflection roller (12) of the feed sections of the conveyor belts (10, 11).
  5. A device as claimed in one of claims 1 to 3, characterized in that one of the U-shaped path sections of the return section (11) of one of the conveyor belts (10, 11) is guided over a further deflection roller (28) substantially wrapped half, which is adjustably supported in the frame and which is biased by a tension means (33) opposite to the path sections of the conveyor belt (11) extending towards said further deflection roller (28).
  6. A device as claimed in one of the preceding claims, characterized in that the conveyor belts (10, 11) are each guided over an independent drive roller (23, 29), and its feed sections are commonly guided over a driven, common drive roller (12), and for varying the output speed with respect to the take-up speed of the device, the common drive roller (12) is driven at a circumferential speed that is variable compared to the circumferential speeds of the first mentioned drive rollers (23, 29).
  7. A device as claimed in one of claims 1 to 5, characterized in that the conveyor belts (10,11) are each guided over an independent drive roller (23, 29) and the common deflection roller (12) supported in the frame (30) is also a drive roller, and for varying the output speed with respect to the take-up speed of the device (9) the common, driven deflection roller (12) is driven at a circumferential speed that is variable compared to the circumferential speeds of the first mentioned drive rollers (23, 29).
  8. A device as claimed in one of the preceding claims, characterized in that it is integrally connected to a camel back cross-lapper (1), which comprises at least two arms (2, 3) pivotally connected to one another, one arm (2) of which being stationarily pivotally supported at a lower end in the frame, and a second arm, formed as a layering arm (3) being hinged to an upper end of the first arm (2) and extending from there downwards over an endlessly revolving layering belt and which is movable transversely to this belt, wherein the feed sections of the conveyor belts (10, 11) are guided in pairs at the arms (2, 3) up to a lower end of the layering arm (3) and are from there guided separately over two deflection rollers (16, 17), which form an output site (B) for the material web, and the conveyor belts (10, 11) are guided back over the arms (2, 3) separate from one another to the take-up site (A).
  9. A device as claimed in claim 8, characterized in that the feed sections of the conveyor belts (10,11) are commonly guided on the arms (2, 3) via several guide rollers (34) arranged in series in the running direction of the conveyor belts (10, 11), said guide rollers alternatingly contacting different sides of the paired feed sections of the conveyor belts (10, 11).
  10. A device as claimed in claim 8 or 9, characterized in that the return sections of the conveyor belts (10, 11) between the first arm (2) of the cross-lapper and the U-shaped path sections are each guided over a drive roller (20, 26) which is wrapped by the respective conveyor belt (10, 11) at an arc angle of more than 90°.
EP04005460A 2004-03-08 2004-03-08 Storage device Expired - Fee Related EP1574604B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT04005460T ATE363556T1 (en) 2004-03-08 2004-03-08 STORAGE DEVICE
DE502004003941T DE502004003941D1 (en) 2004-03-08 2004-03-08 storage device
EP04005460A EP1574604B1 (en) 2004-03-08 2004-03-08 Storage device
AT04015488T ATE353380T1 (en) 2004-03-08 2004-07-01 FLEECE LAYING DEVICE
DE502004002857T DE502004002857D1 (en) 2004-03-08 2004-07-01 Fleece laying device
EP04015488A EP1574605B1 (en) 2004-03-08 2004-07-01 Lap-forming apparatus
CNB2005100535498A CN100510223C (en) 2004-03-08 2005-03-08 Fleece laying device
CNA2005100535483A CN1721592A (en) 2004-03-08 2005-03-08 Web buffering device
US11/075,122 US7320155B2 (en) 2004-03-08 2005-03-08 Web buffering device
US11/074,891 US7320154B2 (en) 2004-03-08 2005-03-08 Fleece laying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04005460A EP1574604B1 (en) 2004-03-08 2004-03-08 Storage device

Publications (2)

Publication Number Publication Date
EP1574604A1 EP1574604A1 (en) 2005-09-14
EP1574604B1 true EP1574604B1 (en) 2007-05-30

Family

ID=34814260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005460A Expired - Fee Related EP1574604B1 (en) 2004-03-08 2004-03-08 Storage device

Country Status (5)

Country Link
US (1) US7320155B2 (en)
EP (1) EP1574604B1 (en)
CN (2) CN100510223C (en)
AT (1) ATE363556T1 (en)
DE (1) DE502004003941D1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7320154B2 (en) * 2004-03-08 2008-01-22 Oskar Dilo Maschinenfabrik Ag Fleece laying device
EP1574604B1 (en) * 2004-03-08 2007-05-30 Oskar Dilo Maschinenfabrik KG Storage device
ATE365239T1 (en) * 2004-04-02 2007-07-15 Dilo Kg Maschf Oskar STEEP ARM FLEECE LAYER
DE502006004974D1 (en) * 2006-05-09 2009-11-12 Dilo Kg Maschf Oskar Steilarmvliesleger
EP2175056B1 (en) * 2008-10-07 2012-02-01 Oskar Dilo Maschinenfabrik KG Device and method for transferring a non-woven web
EP2537967B1 (en) * 2011-06-20 2013-12-18 Oskar Dilo Maschinenfabrik KG Method for operating a non-woven fabric layer
CZ2011873A3 (en) 2011-12-22 2013-07-03 Pegas Nonwovens S.R.O. Device for alteration of nonwoven fabric
DE202013105029U1 (en) * 2013-11-08 2015-02-10 Autefa Solutions Germany Gmbh lapper
EP3015577A1 (en) * 2014-10-27 2016-05-04 Oskar Dilo Maschinenfabrik KG Fibrous web laying device
CN113249872A (en) * 2021-04-23 2021-08-13 南京玻璃纤维研究设计院有限公司 Spread felt device

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Publication number Priority date Publication date Assignee Title
US2962772A (en) * 1957-10-18 1960-12-06 Proctor Silex Corp Movable carriage travel reversing mechanism
NL285404A (en) * 1961-11-13 1900-01-01
FI76597C (en) * 1986-11-12 1988-11-10 Partek Ab FOERFARANDE VID UTLAEGGNING AV MINERALULLBANAS PRIMAERBANA MED HJAELP AV PENDELTRANSPORTOER PAO EN MOTTAGARTRANSPORTOER OCH ARRANGEMANG VID SAODAN PENDELTRANSPORTOER.
US4984772A (en) * 1989-05-15 1991-01-15 E. I. Du Pont De Nemours And Company High speed crosslapper
DE9212215U1 (en) * 1992-09-10 1994-01-13 Autefa Maschinenfab Device for producing a nonwoven from fiber material
EP1136600A1 (en) * 2000-03-13 2001-09-26 Automatex S.r.l. Lap-forming apparatus for card webs
DE10139833A1 (en) * 2001-08-14 2003-02-27 Dilo Kg Maschf Oskar Method and device for producing a nonwoven fabric
US7320154B2 (en) * 2004-03-08 2008-01-22 Oskar Dilo Maschinenfabrik Ag Fleece laying device
EP1574604B1 (en) * 2004-03-08 2007-05-30 Oskar Dilo Maschinenfabrik KG Storage device
ATE365239T1 (en) * 2004-04-02 2007-07-15 Dilo Kg Maschf Oskar STEEP ARM FLEECE LAYER

Also Published As

Publication number Publication date
US20050193526A1 (en) 2005-09-08
CN100510223C (en) 2009-07-08
US7320155B2 (en) 2008-01-22
ATE363556T1 (en) 2007-06-15
CN1721592A (en) 2006-01-18
DE502004003941D1 (en) 2007-07-12
CN1721606A (en) 2006-01-18
EP1574604A1 (en) 2005-09-14

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