EP1119446B1 - Roll for spreading and slowing down pourable materials - Google Patents

Roll for spreading and slowing down pourable materials Download PDF

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Publication number
EP1119446B1
EP1119446B1 EP99950658A EP99950658A EP1119446B1 EP 1119446 B1 EP1119446 B1 EP 1119446B1 EP 99950658 A EP99950658 A EP 99950658A EP 99950658 A EP99950658 A EP 99950658A EP 1119446 B1 EP1119446 B1 EP 1119446B1
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EP
European Patent Office
Prior art keywords
spokes
roller
rods
covering
spreading
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 - Lifetime
Application number
EP99950658A
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German (de)
French (fr)
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EP1119446A1 (en
Inventor
Jörg SCRIBA
Walter Henschel
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.)
Dieffenbacher Schenck Panel GmbH
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Dieffenbacher Schenck Panel GmbH
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Publication of EP1119446A1 publication Critical patent/EP1119446A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • the invention relates to a roller for spreading and braking pourable materials according to the preamble of the claim 1.
  • Chipboard is a mixture of wood chips or fibrous Fabrics and binders to form a fleece on a base scattered.
  • the document is usually a continuous one moving conveyor belt that feeds the chip fleece to a press.
  • a problem in the manufacture of such material plates is an even spread and mix of the chips provided with binders to achieve a sprinkle an even layer on the conveyor belt.
  • a so-called spoke roller is known from EP 0 800 901 A1 known as a spreader roller arranged in a scattering chamber is. This spoke roller is characterized in that it consists of at least two end plates, between which over the entire spreading width spokes are stretched.
  • By rotating Spreading roller are those provided with binders Wood particles mixed very evenly, so that a uniform chip fleece is spreadable.
  • the invention is therefore based on the object of a spreader roller to improve the type described above so that there should be no contamination on the spokes or rods fix. This object is achieved by the in claim 1 specified invention solved. Training and advantageous Exemplary embodiments are specified in the subclaims.
  • the invention has the advantage that the inventive loose covering of the spokes basically the spreader roller constructively does not need to be changed to remove such contaminants to prevent the spokes. Therefore, are advantageous also existing spoke rollers with such a wrap protection retrofitted.
  • the chips are different when wrapped around spokes or rods swirl as with clean rods or spokes changes with increasing pollution also the quality of the spread.
  • the wrapping therefore ensures in an advantageous manner Spoke a constant spreading quality and thus a uniform Quality of the chipboard.
  • the invention advantageously Operational safety and lifespan of the roller increased as a result of an added spreader roller the weight of the spokes and Roller is raised, making it easy to break spokes and Bearing damage comes.
  • Fig. 1 of the drawing shows a spreader roller in the form of a State-of-the-art spoke roller.
  • the spreader roller is there from a central continuous shaft 5, at the ends two end plates 4, 7 are attached.
  • the end areas of the central shaft are designed as bearings 2, 8, the for storing and driving the spreader roller in one not scatter chamber shown are provided.
  • the end disks 4, 7 are designed as perforated disks and firmly attached to the shaft 5.
  • the rows of holes 1, 3 start from Center radiating to the outer circumference and forming one semicircular curved line.
  • thin spokes 6 are drawn in, which radially a predetermined Keep a distance from each other by which the Binding chips or fiber parts fall through can.
  • Fig. 1 of the drawing are for clarity only two rows of holes with spokes are shown. at A real spoke roller often has five rows of holes provided seven spokes each, arranged around the shaft 5 are.
  • the shaft 5 serves in particular as a drive axle and spacers of the end plates 4.7.
  • the spreader roller and brake roller also rotate given speed and mixes the glued on it Chips or fibers to keep them in an even Cross distribution to a base, not shown sprinkle.
  • the glued wood chips are made by gravity sink down through the spoke roller. Through the Rotation hits the glued wood chips against the rotating ones Spokes 6 and are thereby in all possible directions additionally accelerated so that a good resolution of still existing clusters and lumps of chips are reached and at the same time a good mix of the different Chip sizes arise.
  • the length of the wrapper 9 is slightly shorter than that of the spokes 6, rods, Pipes or ropes, so that the sheath 9 only loosely on the Spokes 6, rods, pipes or ropes rests.
  • the wrapping 9 can be made in one piece or in multiple pieces in the longitudinal direction his.
  • Fig. 3 of the drawing some cross-sectional shapes are alternative Sheaths shown, which are preferably used are.
  • the cross-section of an envelope is on the left 2 of the drawing, which is designed as a round tube 2 is.
  • Envelopes with a cross-section can also be used 10 is rectangular or square. hereby wrapping is particularly prevented by the fact that the corners make looping of the long fibers difficult and effective rotation by shifting the center of gravity prevent.
  • an envelope 12, 13 for Retrofitting of existing spreader rollers is envisaged Longitudinal slot included. Such slots have to be smaller than the diameter of the spokes, rods, tubes or wires in order to prevent the spreader roller from moving away from this to solve.
  • These envelopes 12, 13 are designed to be elastic, so that they are on the spokes, rods, pipes or ropes can be snapped on. It is particularly advantageous here Form longitudinal slot edges so that they point inwards are directed. This is particularly advantageous Way achieved that an automatic detachment of the casing 13 is almost excluded from the spoke 6.
  • the envelopes 9, 10, 11, 12, 13 are preferably made of Thin-walled lightweight plastic made so that the weight the spreading roller is not significantly increased. Tried and tested have envelopes made of polypropylene, polyethylene or Teflon, which already have material properties have serious effects. But there are also Enclosures made of metal or metal-plastic compounds suitable.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Catching Or Destruction (AREA)
  • Braking Arrangements (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

A spreading roll for spreading out a chip fleece for producing wood chip material or similar panels, includes two disk-shaped end pieces (3, 7), plural thin spokes (6), rods, pipes or cords arranged extending between the end pieces, and pipe-shaped loose sheaths (9, 10, 11, 12, 13) arranged on the spokes or the like for preventing the adhesion of fibrous materials or contaminants on the spokes or the like.

Description

Die Erfindung betrifft eine Walze zum Streuen und Abbremsen rieselfähiger Materialien gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a roller for spreading and braking pourable materials according to the preamble of the claim 1.

Bei der Herstellung von Werkstoffplatten aus streufähigen oder rieselfähigen Materialien wie beispielsweise bei der Herstellung von Spanplatten wird ein Gemisch aus Holzspänen oder faserigen Stoffen und Bindemitteln zu einem Vlies auf eine Unterlage gestreut. Dazu ist die Unterlage meist ein kontinuierlich bewegtes Förderband, das das Spänevlies einer Presse zuführt. Ein Problem bei der Herstellung derartiger Werkstoffplatten besteht darin, eine gleichmäßige Streuung und Mischung der mit Bindemitteln versehenen Späne zu erreichen, um eine ebene gleichmäßige Schicht auf das Transportband zu streuen. Dazu ist aus der EP 0 800 901 A1 eine sogenannte Speichenwalze als Streuwalze bekannt, die in einer Streukammer angeordnet ist. Diese Speichenwalze zeichnet sich dadurch aus, daß sie aus mindestens zwei Endscheiben besteht, zwischen denen über die gesamte Streubreite Speichen gespannt sind. Durch die rotierende Streuwalze werden die mit Bindemitteln versehenen Holzpartikel sehr gleichmäßig vermischt, so daß damit ein gleichmäßiges Spänevlies streubar ist.In the production of material plates from scatterable or free-flowing materials such as in the manufacture Chipboard is a mixture of wood chips or fibrous Fabrics and binders to form a fleece on a base scattered. The document is usually a continuous one moving conveyor belt that feeds the chip fleece to a press. A problem in the manufacture of such material plates is an even spread and mix of the chips provided with binders to achieve a sprinkle an even layer on the conveyor belt. For this purpose, a so-called spoke roller is known from EP 0 800 901 A1 known as a spreader roller arranged in a scattering chamber is. This spoke roller is characterized in that it consists of at least two end plates, between which over the entire spreading width spokes are stretched. By rotating Spreading roller are those provided with binders Wood particles mixed very evenly, so that a uniform chip fleece is spreadable.

Da in letzter Zeit vielfach recycelte Materialien zu Spänen verarbeitet werden, die häufig längere Faseranteile und Fremdstoffe wie Haare und Kunststoffasern enthalten, wickeln sich vermehrt diese Fasern Und Fremdstoffe um die dünnen Stäbe oder Speichen und setzen die Streuwalze immer mehr zu. Dadurch ist es in gewissen Zeitabständen notwendig, die Speichen der Streuwalzen von den umwickelten Fasern zu säubern. Dies ist sehr aufwendig und kostenintensiv, da in dieser Zeit die Plattenproduktion unterbrochen werden muß.Since recently recycled materials to chips processed, often longer fiber and foreign matter such as hair and plastic fibers, wrap increases these fibers and foreign matter around the thin rods or Spoke and clog the spreader roller more and more. This is the spokes of the Clean the spreader rollers from the wrapped fibers. This is very complex and costly, since the plate production during this time must be interrupted.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Streuwalze der eingangs beschriebenen Art so zu verbessern, daß sich möglichst keine Verschmutzungen an den Speichen oder Stäben festsetzen. Diese Aufgabe wird durch die in Patentanspruch 1 angegebene Erfindung gelöst. Weiterbildungen und vorteilhafte Ausführungsbeispiele sind in den Unteransprüchen angegeben.The invention is therefore based on the object of a spreader roller to improve the type described above so that there should be no contamination on the spokes or rods fix. This object is achieved by the in claim 1 specified invention solved. Training and advantageous Exemplary embodiments are specified in the subclaims.

Die Erfindung hat den Vorteil, daß durch die erfinderische lose Umhüllung der Speichen die Streuwalze im Grunde konstruktiv nicht verändert werden muß, um derartige Verunreinigungen der Speichen zu verhindern. Deshalb sind in vorteilhafter Weise auch bestehende Speichenwalzen mit einem derartigen Umwikkelschutz nachrüstbar.The invention has the advantage that the inventive loose covering of the spokes basically the spreader roller constructively does not need to be changed to remove such contaminants to prevent the spokes. Therefore, are advantageous also existing spoke rollers with such a wrap protection retrofitted.

Da sich bei umwickelten Speichen oder Stäben die Späne anders verwirbeln als bei sauberen Stäben bzw. Speichen ändert sich mit zunehmender Verschmutzung auch die Qualität der Streuung. Auf vorteilhafte Weise gewährleistet deshalb die Umhüllung der Speichen eine konstante Streuqualität und damit eine gleichmäßige Qualität der Spanplatten.Because the chips are different when wrapped around spokes or rods swirl as with clean rods or spokes changes with increasing pollution also the quality of the spread. The wrapping therefore ensures in an advantageous manner Spoke a constant spreading quality and thus a uniform Quality of the chipboard.

Weiterhin wird durch die Erfindung auf vorteilhafte Weise die Betriebssicherheit und Lebensdauer der Walze erhöht, da durch eine zugesetzte Streuwalze das Gewicht der Speichen und der Walze erhöht wird, wodurch es leicht zu Speichenbrüchen und Lagerschäden kommt. Furthermore, the invention advantageously Operational safety and lifespan of the roller increased as a result of an added spreader roller the weight of the spokes and Roller is raised, making it easy to break spokes and Bearing damage comes.

Die Erfindung wird anhand eines Ausführungsbeispiels, das in der Zeichnung dargestellt ist, näher erläutert. Es zeigen:

Fig. 1:
eine Streuwalze als Speichenwalze,
Fig. 2:
eine Speiche mit rohrförmiger Umhüllung und
Fig. 3:
verschiedene Querschnitte alternativer Umhüllungen.
The invention is explained in more detail using an exemplary embodiment which is illustrated in the drawing. Show it:
Fig. 1:
a spreader roller as a spoke roller,
Fig. 2:
a spoke with a tubular covering and
Fig. 3:
different cross-sections of alternative wrappings.

Die Fig. 1 der Zeichnung zeigt eine Streuwalze in Form einer Speichenwalze nach dem Stand der Technik. Die Streuwalze besteht aus einer zentralen durchgehenden Welle 5, an deren Enden zwei Endscheiben 4, 7 angebracht sind. Die Endbereiche der zentralen Welle sind als Lagerstellen 2, 8 ausgebildet, die zur Lagerung und zum Antrieb der Streuwalze in einer nicht dargestellten Streukammer vorgesehen sind.Fig. 1 of the drawing shows a spreader roller in the form of a State-of-the-art spoke roller. The spreader roller is there from a central continuous shaft 5, at the ends two end plates 4, 7 are attached. The end areas of the central shaft are designed as bearings 2, 8, the for storing and driving the spreader roller in one not scatter chamber shown are provided.

Die Endscheiben 4, 7 sind als Lochscheiben ausgebildet und fest auf der Welle 5 befestigt. Die Lochreihen 1, 3 gehen vom Zentrum strahlenförmig zum äußeren Umfang und bilden eine halbkreisförmig gekrümmte Linie. In die Löcher der Endscheiben 4, 7 sind dünne Speichen 6 eingezogen, die radial einen vorgegebenen Abstand voneinander einhalten, durch das die mit Bindemitteln versehenen Späne oder Faserteile hindurchfallen können. In Fig. 1 der Zeichnung sind wegen der Übersichtlichkeit lediglich zwei Lochreihen mit Speichen dargestellt. Bei einer realen Speichenwalze sind häufig fünf Lochreihen mit jeweils sieben Speichen vorgesehen, die um die Welle 5 angeordnet sind. Dabei dient die Welle 5 insbesondere als Antriebsachse und Abstandshalter der Endscheiben 4,7.The end disks 4, 7 are designed as perforated disks and firmly attached to the shaft 5. The rows of holes 1, 3 start from Center radiating to the outer circumference and forming one semicircular curved line. In the holes in the end plates 4, 7 thin spokes 6 are drawn in, which radially a predetermined Keep a distance from each other by which the Binding chips or fiber parts fall through can. In Fig. 1 of the drawing are for clarity only two rows of holes with spokes are shown. at A real spoke roller often has five rows of holes provided seven spokes each, arranged around the shaft 5 are. The shaft 5 serves in particular as a drive axle and spacers of the end plates 4.7.

Im Betriebszustand rotiert die Streuwalze und Bremswalze mit vorgegebener Drehzahl und vermischt die darauf geleiteten beleimten Späne oder Fasern, um diese in einer gleichmäßigen Querverteilung auf eine nicht dargestellten Unterlage zu streuen. Dabei werden die beleimten Holzspäne mittels Schwerkraft durch die Speichenwalze nach unten sinken. Durch die Rotation treffen die beleimten Holzspäne gegen die umlaufenden Speichen 6 und werden dadurch in alle möglichen Richtungen zusätzlich beschleunigt, so daß eine gute Auflösung von noch vorhandenen Anhäufungen und Späneklumpen erreicht wird und zugleich noch eine gute Durchmischung der unterschiedlichen Spangrößen entsteht.In the operating state, the spreader roller and brake roller also rotate given speed and mixes the glued on it Chips or fibers to keep them in an even Cross distribution to a base, not shown sprinkle. The glued wood chips are made by gravity sink down through the spoke roller. Through the Rotation hits the glued wood chips against the rotating ones Spokes 6 and are thereby in all possible directions additionally accelerated so that a good resolution of still existing clusters and lumps of chips are reached and at the same time a good mix of the different Chip sizes arise.

Allerdings befinden sich in dem beleimten Streugut auch längere Faseranteile und faserige Fremdstoffe, wie insbesondere gekräuselte Haare, Kunststoffe oder Pflanzenreste, die sich häufig um die Speichen 6 wickeln und die Walze mit der Zeit zusetzen. Ein derartiges Umwickeln der Speichenstäbe 6 erfolgt verstärkt bei verhältnismäßig dünnen Speichen. Diese werden vorzugsweise eingesetzt, um eine leichte Walzenbauart zu erreichen, die auch nur geringe Antriebsleistungen erfordern und eine hohe Durchgangsleistung des Streuguts bei besten Streueigenschaften besitzen.However, there are also longer ones in the glued spreading material Fiber components and fibrous foreign substances, such as in particular frizzy hair, plastics, or plant scraps often wrap around the spokes 6 and the roller over time enforce. Such a wrapping around the spoke rods 6 takes place reinforced with relatively thin spokes. These will preferably used to achieve a light roller design, that only require low drive power and high throughput of the spreading material with the best spreading properties have.

Es hat sich zwar gezeigt, daß bei Streuwalzen, die mit dickeren Querstäben oder Rohren anstatt von Speichen ausgestattet waren, sich die Menge der Wickelrückstände verringerte, aber nicht gänzlich zu verhindern war. Diese Wirkung verringert sich noch, soweit in dem Streugut noch Faseranteile vorhanden waren, deren Länge größer als der Umfang der Querstäbe oder der Rohre war. Die Speichen 6 oder Stäbe wurden deshalb erfindungsgemäß mit einer Umhüllung 9 nach Fig. 2 der Zeichnung versehen. Diese Umhüllung 9 besteht vorzugsweise aus einem rohrförmigen Körper, dessen Innendurchmesser größer ist als der Außendurchmesser der dünnen Speichen 6. Anstatt der Speichen kann die Streuwalze oder Bremswalze auch mit dünnen Stäben, Rohren oder Seilen versehen sein. Die Länge der Umhüllung 9 ist dabei geringfügig kürzer als die der Speichen 6, Stäbe, Rohre oder Seile, so daß die Umhüllung 9 nur lose auf den Speichen 6, Stäben, Rohren oder Seilen aufliegt. Die Umhüllung 9 kann in Längsrichtung einteilig oder auch mehrteilig ausgebildet sein.It has been shown that with spreader rollers that have thicker Cross bars or tubes instead of spokes the amount of wrap residues decreased, however could not be completely prevented. This effect diminishes as far as there is still fiber in the grit were whose length is greater than the circumference of the cross bars or the pipes was. The spokes 6 or rods were therefore inventively with an envelope 9 according to FIG. 2 of the drawing Mistake. This envelope 9 preferably consists of a tubular body, the inside diameter of which is larger than the outer diameter of the thin spokes 6. Instead of the spokes the spreader roller or brake roller can also be used with thin bars, Pipes or ropes. The length of the wrapper 9 is slightly shorter than that of the spokes 6, rods, Pipes or ropes, so that the sheath 9 only loosely on the Spokes 6, rods, pipes or ropes rests. The wrapping 9 can be made in one piece or in multiple pieces in the longitudinal direction his.

Überraschenderweise hat sich gezeigt, daß auch längere Faseranteile sich nicht um die Umhüllung 9 wickeln, auch wenn diese erheblich länger sind als der Umfang der Umhüllung. Dies ist darauf zurückzuführen, daß sich die Umhüllung 9 durch die rotierende Walze nicht gezwungenermaßen um die eigene Achse drehen muß und somit kein nennenswertes Drehmoment entwickelt, das die längeren Fasern fest um die Speiche 6, die Stäbe, die Rohre oder die Seile wickeln könnte. Besonders vorteilhaft haben sich dabei Umhüllungen erwiesen, deren Innendurchmesser etwa doppelt so groß ist wie der Speichendurchmesser, so daß der Schwerpunkt der Umhüllung nennenswert unterhalb der Speichenachse liegt. Dadurch wird erreicht, daß sich während der Rotation der Streuwalze die Umhüllung nicht gezwungenermaßen um die eigene Achse dreht. Ein Umwickeln der längeren Faserteile ist dadurch nahezu ausgeschlossen. Vielmehr entsteht hierdurch sogar häufig eine Taumelbewegung der Umhüllung, die vorzugsweise gekräuselte anhaftende Faserteile löst und somit eine zusätzlich gewisse Selbstreinigungwirkung entfaltet.Surprisingly, it has been shown that longer fiber shares do not wrap around the wrapper 9 even if it is are considerably longer than the circumference of the wrapping. This is due to the fact that the envelope 9 by the rotating Do not necessarily turn the roller around its own axis must and therefore develops no significant torque, that the longer fibers firmly around the spoke 6, the rods that Could wrap pipes or the ropes. Particularly advantageous envelopes have proven their inner diameter is about twice as large as the spoke diameter, so that the center of gravity of the casing is noteworthy below the spoke axis lies. This ensures that during the Rotation of the spreader roller does not necessarily force the wrapper rotates around its own axis. Wrapping the longer fiber parts is almost impossible. Rather, it arises this often even causes the wrapping to wobble preferably curled adhering fiber parts loosens and thus also has a certain self-cleaning effect.

In Fig. 3 der Zeichnung sind einige Querschnittsformen alternativer Umhüllungen dargestellt, die vorzugsweise einsetzbar sind. Dabei ist linksseitig der Querschnitt einer Umhüllung nach Fig. 2 der Zeichnung dargestellt, die als Rundrohr 2 ausgebildet ist. Es sind auch Umhüllungen einsetzbar, deren Querschnitt 10 rechteckig oder quadratisch ausgebildet ist. Hierdurch wird eine Umwicklung besonders dadurch verhindert, daß die Ecken ein Umschlingen der langen Fasern erschweren und eine Drehung durch die Verschiebung des Schwerpunktes wirkungsvoll verhindern.In Fig. 3 of the drawing, some cross-sectional shapes are alternative Sheaths shown, which are preferably used are. The cross-section of an envelope is on the left 2 of the drawing, which is designed as a round tube 2 is. Envelopes with a cross-section can also be used 10 is rectangular or square. hereby wrapping is particularly prevented by the fact that the corners make looping of the long fibers difficult and effective rotation by shifting the center of gravity prevent.

Es ist auch ein ovaler Querschnitt 11 der Umhüllung vorgesehen, der in vorteilhafter Weise den Durchtrittsquerschnitt durch die Streuwalze nicht nennenswert verringert, so daß eine hohe Durchgangsleistung der Walze bei stabiler Rotationslage der Umhüllung erreicht wird.There is also an oval cross section 11 of the casing, which advantageously has the passage cross section not significantly reduced by the spreader roller, so that a high throughput of the roller with stable rotation position the envelope is reached.

Es sind auch Ausführungsformen einer Umhüllung 12, 13 zur Nachrüstung vorhandener Streuwalzen vorgesehen, die einen Längsschlitz enthalten. Derartige Schlitze müssen aber kleiner als die Durchmesser der Speichen, Stäbe, Rohre oder Drähte sein, um bei der Rotation der Streuwalze sich nicht von dieser zu lösen. Dabei sind diese Umhüllungen 12, 13 elastisch ausgebildet, so daß sie auf die Speichen, Stäbe, Rohre oder Seile aufschnappbar sind. Dabei ist es besonders vorteilhaft, die Schlitzlängskanten so auszubilden, daß diese nach innen zeigend gerichtet sind. Hierdurch wird auf besonders vorteilhafte Weise erreicht, daß ein selbsttätiges Loslösen der Umhüllung 13 von der Speiche 6 nahezu ausgeschlossen ist.There are also embodiments of an envelope 12, 13 for Retrofitting of existing spreader rollers is envisaged Longitudinal slot included. Such slots have to be smaller than the diameter of the spokes, rods, tubes or wires in order to prevent the spreader roller from moving away from this to solve. These envelopes 12, 13 are designed to be elastic, so that they are on the spokes, rods, pipes or ropes can be snapped on. It is particularly advantageous here Form longitudinal slot edges so that they point inwards are directed. This is particularly advantageous Way achieved that an automatic detachment of the casing 13 is almost excluded from the spoke 6.

Die Umhüllungen 9, 10, 11, 12, 13 werden vorzugsweise aus dünnwandigem leichten Kunststoff gefertigt, so daß das Gewicht der Streuwalze nicht nennenswert erhöht wird. Besonders bewährt haben sich Umhüllungen aus Polypropylen, Polyethylen oder Teflon, die bereits von ihren Materialeigenschaften her schwerhaftende Wirkungsweisen aufweisen. Es sind aber auch Umhüllungen aus Metall oder Metall-Kunststoff-Verbindungen geeignet.The envelopes 9, 10, 11, 12, 13 are preferably made of Thin-walled lightweight plastic made so that the weight the spreading roller is not significantly increased. Tried and tested have envelopes made of polypropylene, polyethylene or Teflon, which already have material properties have serious effects. But there are also Enclosures made of metal or metal-plastic compounds suitable.

Claims (6)

  1. Roller for spreading and slowing down pourable materials, comprising two end disks, between which a plurality of thin spokes, rods, tubes or lines are disposed, characterized in that the thin spokes (6), rods, tubes or lines are surrounded by a loose covering (9, 10, 11, 12, 13).
  2. Roller according to claim 1, characterized in that the covering (9, 10, 11, 12, 13) is of a tubular design, wherein the inside diameter is greater than the outside diameter of the spokes (6), rods, tubes or lines.
  3. Roller according to claim 1 or 2, characterized in that the cross section of the covering (9, 10, 11, 12, 13) is round, square, rectangular, polygonal, oval or modified shapes thereof.
  4. Roller according to one of the preceding claims, characterized in that the covering (9, 10, 11, 12, 13) has a longitudinal slot, which is designed in such a way that the covering (12, 13) may be snapped onto the spokes (6), rods, tubes or lines.
  5. Roller according to one of the preceding claims, characterized in that the covering (9, 10, 11, 12, 13) in longitudinal direction is of a one- or multi-part construction.
  6. Roller according to one of the preceding claims, characterized in that the covering (9, 10, 11, 12, 13) is made of metal, plastics material or a combination of metal and plastics material.
EP99950658A 1998-10-07 1999-10-07 Roll for spreading and slowing down pourable materials Expired - Lifetime EP1119446B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19846107A DE19846107A1 (en) 1998-10-07 1998-10-07 Roller for spreading and braking free-flowing materials
DE19846107 1998-10-07
PCT/EP1999/007516 WO2000020180A1 (en) 1998-10-07 1999-10-07 Roll for spreading and slowing down pourable materials

Publications (2)

Publication Number Publication Date
EP1119446A1 EP1119446A1 (en) 2001-08-01
EP1119446B1 true EP1119446B1 (en) 2002-09-18

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EP99950658A Expired - Lifetime EP1119446B1 (en) 1998-10-07 1999-10-07 Roll for spreading and slowing down pourable materials

Country Status (5)

Country Link
US (1) US6612446B1 (en)
EP (1) EP1119446B1 (en)
AT (1) ATE224274T1 (en)
DE (2) DE19846107A1 (en)
WO (1) WO2000020180A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020881A1 (en) * 2000-04-28 2001-10-31 Dieffenbacher Schenck Panel Material spreader for timber material panel manufacture has rotating rollers with interlocking elastic spring parts to dissolve material flow particles when passing between rollers
DE10020890A1 (en) * 2000-04-28 2001-10-31 Dieffenbacher Schenck Panel Device for spreading spreading material on a continuously moving surface
KR102024552B1 (en) * 2018-11-21 2019-11-04 주식회사삼동이엔티 Device for separating foreign matter of pet flakes using air suction
DE202019002531U1 (en) 2019-06-07 2019-06-27 Lpco Germany Gmbh Spreader roll for a distributor

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WO2000020180A1 (en) 2000-04-13
DE59902787D1 (en) 2002-10-24
EP1119446A1 (en) 2001-08-01
ATE224274T1 (en) 2002-10-15
DE19846107A1 (en) 2000-04-13
US6612446B1 (en) 2003-09-02

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