EP1442857A2 - Device for distributing granular material onto a continously travelling support - Google Patents

Device for distributing granular material onto a continously travelling support Download PDF

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Publication number
EP1442857A2
EP1442857A2 EP04001530A EP04001530A EP1442857A2 EP 1442857 A2 EP1442857 A2 EP 1442857A2 EP 04001530 A EP04001530 A EP 04001530A EP 04001530 A EP04001530 A EP 04001530A EP 1442857 A2 EP1442857 A2 EP 1442857A2
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EP
European Patent Office
Prior art keywords
spreading
calming
roller arrangement
rollers
glued
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Granted
Application number
EP04001530A
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German (de)
French (fr)
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EP1442857B1 (en
EP1442857A3 (en
Inventor
Hans-Joachim Schreiber
Matthias Graf
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Dieffenbacher GmbH and Co KG
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Dieffenbacher GmbH and Co KG
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Publication of EP1442857A3 publication Critical patent/EP1442857A3/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 device for spreading Spreading material according to a continuously moving surface Preamble of claim 1.
  • Fiber dissolving rollers used. These are usually between the discharge roller arrangement of the dosing hopper and the Spreading head arrangement arranged.
  • Fiber dissolving rollers usually consist of 1 or 2 pairs Opening rollers with very high speeds of 800 - 2000 Rotate revolutions per minute in opposite directions.
  • the object of the present invention is therefore a To further develop a device for spreading spreading material, that a high quality wood-based panel can be produced, in particular a uncontrolled redistribution of the spreading material in the transverse direction. should be avoided.
  • the material flow is discharged from the dosing bunker due to the rotating at very high speed and with Disengagement roller assembly provided disengagement elements. This will break up fiber bales and fiber / glue knots smashed. Directly after the Dissolving roller arrangement becomes the material flow with high kinetic energy in the sedative chambers of the Calming fan catapulted. The existing air flows together with the fibers of the material flow are now in the Calming chambers directed downwards. It can further turbulence in the individual calming chambers arise, however due to the spatial limitation prevents a significant redistribution of the Material flow can come in the transverse direction. The material flow is following the calming subjects directly onto one below abandoned arranged spreader roller arrangement that the Material flow on a continuously running forming belt aufstreut.
  • FIG. 1 schematically shows a molding station 1 with a dosing hopper 2, an opening roller arrangement 3, a calming fan 4, a scattering head arrangement 5 and a forming belt 6 on which the Material fleece 7 is sprinkled with glued fibers, shown.
  • the material flow which is preferably made glued fibers, cached and on a intended discharge width distributed.
  • material flow are in primarily lignocellulose-containing particles of different Size such as fibers, chips and the like are provided.
  • binders provided wood shavings or wood fibers used with the help a bottom belt 8 and a discharge roller arrangement 9 the dosing hopper 2 are continuously discharged.
  • the dosing hopper 2 has a width that is at least the maximum plate width corresponds to that on the system to be produced.
  • the glued fibers are over the Discharge roller arrangement 9 of the dosing hopper 2 on the Opening roller assembly 3 abandoned, consisting of two in opposite directions rotatably driven rollers 10.
  • the rollers 10 are as can be seen from the illustration, axially parallel in arranged horizontally next to each other.
  • rollers are equipped with spikes or teeth.
  • rollers 10 are used which are described in DE 100 53 129 A1 are described in more detail.
  • the material flow from glued fibers is due to the narrow between the spines or teeth formed gap, creating a Fiber dissolution or breaking up of fiber / glue lumps is achieved.
  • the dissolved material flow is then connected to the opening roller assembly 3 in an immediate downstream calming compartments 4 thrown.
  • the calming fan 4 consists of a housing part, in which a plurality of parallel wall elements 11 are arranged are.
  • the wall elements 11 are preferably as longitudinal to Conveying direction of the forming belt 6 aligned sheets trained and divide the housing part into several Calming chambers 12. These between two wall elements 11 Calming chambers 12 formed have a width B of 50 up to 500 mm, preferably 150 mm (Fig. 2).
  • the wall elements 11 can be connected immediately be arranged on the opening roller assembly 3 and it only a small gap remains between rollers 10 and Top edge of the wall elements 11 of the calming fan 4 this arrangement can have no fibers on the top of the Deposit wall elements 11 and a fiber / glue knot formation can be prevented.
  • the wall elements 11 protrude outwards from the opening roller arrangement 3 in the vertical direction to short via the spreader roller arrangement 5.
  • the material flow driven by the opening roller arrangement 3 gets into the calming chambers with high kinetic energy 12 of the calming fan 4 catapulted.
  • the existing ones Air flows along with the fibers are now called partial flows passed down in the calming chambers 12. It can turbulence continues in the individual calming chambers 12 arise, however due to the spatial limitation prevents a significant redistribution of the Material flow can come in the transverse direction.
  • the spreading roller arrangement 5 consists of several arranged parallel and transverse to the conveying direction Beaters.
  • the spreader rollers are in along the conveying direction horizontally increasing line arranged to give a uniform To ensure scatter and a height limitation.
  • the Spreading rollers are directly below the Calming fan 4 provided and promote the free-flowing Goods, preferably the glued wood fibers against the Conveying direction.
  • an additional one after the calming compartments Conveyor device can be provided that the material flow glue-fed fibers of a scattering head arrangement 5.
  • the additional conveying device is a dosing belt scale trained who continuously in a controllable flow rate the spreading head arrangement promotes, depending on the plate thickness and width of the spreading head arrangement a predeterminable amount is sprinkled on the ribbon.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The scattering apparatus includes a roller arrangement (3) which is arranged above a deoxidizing fan (4). The fan includes walls which are arranged parallel to each other and adapted to form deoxidizing chambers.

Description

Die Erfindung betrifft eine Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a device for spreading Spreading material according to a continuously moving surface Preamble of claim 1.

Bei der Herstellung von Holzwerkstoffplatten, insbesondere Holzfaserplatten, besteht das Problem, daß durch den Transport der Fasern von den Refinern bis zum eigentlichen Abwurfpunkt im Streukopf sich sogenannte Faserballen bilden. Verursacht wird dies meist durch Wandreibung, Rückkämmeinrichtungen, Förderschnecken etc., die Materialumwälzungen hervorrufen und die Fasern zu kugelförmigen oder zigarrenförmigen Faseragglomeraten zusammenschließen. Diese Faserballen sind sehr unerwünscht, da sie in der fertigen Holzfaserplatte zu einer wolkenartigen Oberflächenstruktur führen und einen optischen Qualitätsmangel darstellen.In the manufacture of wood-based panels, in particular Fibreboard, there is a problem with transportation the fibers from the refiners to the actual drop point So-called fiber bales form in the spreading head. Caused this is usually caused by wall friction, combing devices, Screw conveyors etc., which cause material circulation and the fibers into spherical or cigar-shaped Combine fiber agglomerates. These are fiber bales very undesirable as they are in the finished fiberboard too lead a cloud-like surface structure and one visual lack of quality.

Weiterhin kann es in Vorrichtungen in denen sich ein Stoffstrom aus beleimten Holzpartikeln oder Fasern bewegt, zu Anbackungen und Ablagerungen kommen, die dann plötzlich durch Vibrationen oder andere Kräfte abgelöst werden und mit dem Stoffstrom mitgerissen werden. Diese Ablagerungen bestehen meist aus einem Faser-Leim-Gemisch das durch die lange Liegezeit bereits vollständig ausgehärtet ist. Diese Ablagerungen werden nachfolgend als Faser- /Leimknoten bezeichnet.Furthermore, it can be found in devices in which a Material flow made of glued wood particles or fibers moves Caking and deposits come on, which then suddenly appear Vibrations or other forces are released and with that Material flow are carried away. These deposits exist mostly from a fiber-glue mixture that through the long Lying time is already completely hardened. This Deposits are subsequently called fiber / glue knots designated.

Diese Faser- / Leimknoten können starke Beschädigungen an den Stahlbändern von kontinuierlichen Pressen verursachen. Zur Auflösung der oben beschriebenen Faserballen, sowie zur Zerschlagung der Faser- / Leimknoten werden sogenannte Faserauflösewalzen eingesetzt. Diese sind in der Regel zwischen der Austragswalzenanordnung des Dosierbunkers und der Streukopfanordnung angeordnet.These fiber / glue knots can cause severe damage to the Cause steel belts from continuous presses. to Dissolution of the fiber bales described above, as well as Breaking the fiber / glue knots are so-called Fiber dissolving rollers used. These are usually between the discharge roller arrangement of the dosing hopper and the Spreading head arrangement arranged.

Faserauflösewalzen bestehen üblicherweise aus 1 oder 2 Paar Auflösewalzen, die mit sehr hohen Drehzahlen von 800 - 2000 Umdrehungen pro Minute gegensinnig rotieren.Fiber dissolving rollers usually consist of 1 or 2 pairs Opening rollers with very high speeds of 800 - 2000 Rotate revolutions per minute in opposite directions.

Aus der DE-AS 11 74 058 sind gegensinnig rotierende Scheibenwalzen oder Stachelwalzen bekannt, die am Umfang reihenförmig angeordnete Stachel aufweisen, die zwischen den Stachelreihen der gegenüberliegenden Walze eingreifen. Der Stoffstrom wird hierbei durch den zwischen den Stacheln gebildeten Spalt getrieben.From DE-AS 11 74 058 are rotating in opposite directions Disc rollers or spiked rollers known on the circumference have rows of sting arranged between the Engage rows of spikes on the opposite roller. The Material flow is here between the spines formed gap driven.

Weiterhin sind aus der DE 43 02 850 Faserballen-Auflösewalzen bekannt, die gegensinnig rotierend angetrieben sind. Die Walzen sind als Scheibenwellen mit aufgesetzten Zahnscheiben ausgebildet. Diese Zahnscheiben weisen sogenannte Auflösezähne auf, die entgegen der Drehrichtung sägezahnartig schräg gestellt sind, wobei die Auflösezähne der Walzen ineinandergreifen und einen mäanderförmigen Spalt bilden.
Auch bei dieser bekannten Vorrichtung wird der Stoffstrom durch den zwischen den Auflösewalzen gebildeten Spalt getrieben.Furthermore, from DE 43 02 850 fiber bale opening rollers are known, which are driven rotating in opposite directions. The rollers are designed as disc shafts with toothed discs attached. These toothed disks have so-called opening teeth, which are inclined sawtooth-like against the direction of rotation, the opening teeth of the rollers intermeshing and forming a meandering gap.
In this known device, too, the material flow is driven through the gap formed between the opening rollers.

Wie man sich leicht vorstellen kann, entstehen dabei sehr hohe Luftturbulenzen am Austritt der Faserauflösewalzen. Diese Luftturbulenzen sind sehr störend, da die Luftwirbel die leichten Fasern mit sich reißen und somit eine ungewollte, unkontrollierte Verteilung über die Breite erzeugen. Bei einer Anordnung der Faserauflösewalzen unmittelbar über der Streukopfanordnung, wird dadurch die Gewichtsverteilung auf dem Formband empfindlich gestört und das Streuergebnis negativ beeinflußt. As you can easily imagine, very high levels arise Air turbulence at the exit of the fiber dissolving rollers. This Air turbulence is very disruptive because the air vortexes tear light fibers with them and thus an unwanted, Generate uncontrolled distribution across the width. At a Arrangement of the fiber dissolving rollers immediately above the Spreading head arrangement, the weight distribution is thereby the forming belt is disturbed and the spreading result is negative affected.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zum Streuen von Streugut derart weiterzubilden, daß eine qualitativ hochwertige Holzwerkstoffplatte hergestellt werden kann, wobei beim Streuen insbesondere eine unkontrollierte Umverteilung des Streugutes in Querrichtung. vermieden werden soll.The object of the present invention is therefore a To further develop a device for spreading spreading material, that a high quality wood-based panel can be produced, in particular a uncontrolled redistribution of the spreading material in the transverse direction. should be avoided.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale gelöst.This object is achieved by the specified in claim 1 Features solved.

Der Stoffstrom wird nach dem Austrag aus dem Dosierbunker durch die mit sehr hoher Drehzahl rotierenden und mit Auflöseelementen versehene Auflösewalzenanordnung getrieben. Hierdurch werden Faserballen aufgelöst und Faser- / Leimknoten zerschlagen. Im direkten Anschluss an die Auflösewalzenanordnung wird der Stoffstrom mit hoher kinetischer Energie in die Beruhigungskammern des Beruhigungsfächers katapultiert. Die vorhandenen Luftströme zusammen mit den Fasern des Stoffstromes werden nun in den Beruhigungskammern nach unten geleitet. Es können zwar weiterhin Turbulenzen in den einzelnen Beruhigungskammern entstehen, aufgrund der räumlichen Begrenzung wird jedoch verhindert, dass es zu einer nennenswerten Umverteilung des Stoffstromes in Querrichtung kommen kann. Der Stoffstrom wird im Anschluss an den Beruhigungsfächer direkt auf eine darunter liegend angeordnete Streuwalzenanordnung aufgegeben, die den Stoffstrom auf ein darunter kontinuierlich laufendes Formband aufstreut.The material flow is discharged from the dosing bunker due to the rotating at very high speed and with Disengagement roller assembly provided disengagement elements. This will break up fiber bales and fiber / glue knots smashed. Directly after the Dissolving roller arrangement becomes the material flow with high kinetic energy in the sedative chambers of the Calming fan catapulted. The existing air flows together with the fibers of the material flow are now in the Calming chambers directed downwards. It can further turbulence in the individual calming chambers arise, however due to the spatial limitation prevents a significant redistribution of the Material flow can come in the transverse direction. The material flow is following the calming subjects directly onto one below abandoned arranged spreader roller arrangement that the Material flow on a continuously running forming belt aufstreut.

Weitere vorteilhafte Merkmale der Erfindung ergeben sich aus der nachstehenden Beschreibung von Ausführungsbeispielen anhand der Zeichnungen. Es zeigt:

Figur 1 :
eine schematische Darstellung einer Formstation mit Auflösewalzenanordnung und nachgeschaltetem Beruhigungsfächer;
Figur 2 :
eine Teilansicht der Auflösewalzenanordnung mit Beruhigungsfächer und Streuwalzenanordnung gemäß des Schnittes II-II in Fig. 1.
Further advantageous features of the invention result from the following description of exemplary embodiments with reference to the drawings. It shows:
Figure 1 :
a schematic representation of a molding station with opening roller arrangement and downstream calming fan;
Figure 2 :
2 shows a partial view of the opening roller arrangement with calming compartments and scattering roller arrangement according to section II-II in FIG. 1.

In Fig. 1 ist schematisch eine Formstation 1 mit Dosierbunker 2, einer Auflösewalzenanordnung 3, einem Beruhigungsfächer 4, einer Streukopfanordnung 5 und einem Formband 6, auf das das Materialvlies 7 aus beleimten Fasern aufgestreut wird, dargestellt.1 schematically shows a molding station 1 with a dosing hopper 2, an opening roller arrangement 3, a calming fan 4, a scattering head arrangement 5 and a forming belt 6 on which the Material fleece 7 is sprinkled with glued fibers, shown.

Im Dosierbunker 2 wird der Stoffstrom, der vorzugsweise aus beleimten Fasern besteht, zwischengespeichert und auf eine vorgesehene Austragsbreite verteilt. Als Stoffstrom sind in erster Linie lignocellulosehaltige Teilchen unterschiedlicher Größe wie Fasern, Späne und dergleichen vorgesehen. Zur Herstellung von Platten werden meist mit Bindemitteln versehene Holzspäne oder Holzfasern verwendet, die mit Hilfe eines Bodenbandes 8 und einer Austragswalzenanordnung 9 aus dem Dosierbunker 2 kontinuierlich ausgetragen werden. Dabei besitzt der Dosierbunker 2 eine Breite, die mindestens der maximalen Plattenbreite entspricht, die auf der Anlage produziert werden soll. Die beleimten Fasern werden über die Austragswalzenanordnung 9 des Dosierbunkers 2 auf die Auflösewalzenanordnung 3 aufgegeben, die aus zwei gegensinnig rotierend angetriebenen Walzen 10 besteht. Die Walzen 10 sind, wie es aus der Darstellung ersichtlich ist, achsparallel in einer waagrechten Ebene nebeneinander liegend angeordnet.In the dosing bunker 2, the material flow, which is preferably made glued fibers, cached and on a intended discharge width distributed. As material flow are in primarily lignocellulose-containing particles of different Size such as fibers, chips and the like are provided. to Manufacture of boards are mostly made with binders provided wood shavings or wood fibers used with the help a bottom belt 8 and a discharge roller arrangement 9 the dosing hopper 2 are continuously discharged. there the dosing hopper 2 has a width that is at least the maximum plate width corresponds to that on the system to be produced. The glued fibers are over the Discharge roller arrangement 9 of the dosing hopper 2 on the Opening roller assembly 3 abandoned, consisting of two in opposite directions rotatably driven rollers 10. The rollers 10 are as can be seen from the illustration, axially parallel in arranged horizontally next to each other.

Wie es bereits in der Beschreibungseinleitung näher erläutert ist, sind diese Walzen mit Stacheln oder Zähnen bestückt. Vorteilhafterweise werden Walzen 10 eingesetzt, die in der DE 100 53 129 A1 näher beschrieben sind. Der Stoffstrom aus beleimten Fasern wird durch den engen zwischen den Stacheln oder Zähnen gebildeten Spalt getrieben, wodurch eine Faserauflösung bzw. Zerschlagung von Faser- / Leimklumpen erzielt wird. Der aufgelöste Stoffstrom wird im Anschluss an die Auflösewalzenanordnung 3 in einen unmittelbar nachgeschaltet angeordneten Beruhigungsfächer 4 geworfen.As already explained in the introduction to the description is, these rollers are equipped with spikes or teeth. Advantageously, rollers 10 are used which are described in DE 100 53 129 A1 are described in more detail. The material flow from glued fibers is due to the narrow between the spines or teeth formed gap, creating a Fiber dissolution or breaking up of fiber / glue lumps is achieved. The dissolved material flow is then connected to the opening roller assembly 3 in an immediate downstream calming compartments 4 thrown.

Der Beruhigungsfächer 4 besteht dabei aus einem Gehäuseteil, in dem eine Vielzahl paralleler Wandelemente 11 angeordnet sind. Die Wandelemente 11 sind vorzugsweise als längs zur Förderrichtung des Formbandes 6 ausgerichtete Bleche ausgebildet und unterteilen das Gehäuseteil in mehrere Beruhigungskammern 12. Diese zwischen zwei Wandelementen 11 gebildeten Beruhigungskammern 12 besitzen eine Breite B von 50 bis 500 mm, bevorzugt 150 mm (Fig. 2).The calming fan 4 consists of a housing part, in which a plurality of parallel wall elements 11 are arranged are. The wall elements 11 are preferably as longitudinal to Conveying direction of the forming belt 6 aligned sheets trained and divide the housing part into several Calming chambers 12. These between two wall elements 11 Calming chambers 12 formed have a width B of 50 up to 500 mm, preferably 150 mm (Fig. 2).

Wie es aus der Darstellung der Fig. 1 ersichtlich ist, sind die Wandelemente 11 an ihrem oberen, den Auflösewalzen 10 zugewandten Bereich 13, jeweils halbkreisförmig, der Kontur der Auflösewalzen 10 entsprechend ausgespart ausgebildet. Hierdurch können die Wandelemente 11 unmittelbar im Anschluss an die Auflösewalzenanordnung 3 angeordnet werden und es verbleibt nur ein kleiner Spalt zwischen Walzen 10 und Oberkante der Wandelemente 11 des Beruhigungsfächers 4. Durch diese Anordnung können sich keine Fasern auf der Oberkante der Wandelemente 11 ablagern und eine Faser- / Leimknotenbildung kann verhindert werden. Die Wandelemente 11 ragen ausgehend von der Auflösewalzenanordnung 3 in Vertikalrichtung bis kurz über die Streuwalzenanordnung 5.As can be seen from the illustration in FIG. 1 the wall elements 11 on their upper, the opening rollers 10 facing area 13, each semicircular, the contour the opening rollers 10 are formed accordingly recessed. As a result, the wall elements 11 can be connected immediately be arranged on the opening roller assembly 3 and it only a small gap remains between rollers 10 and Top edge of the wall elements 11 of the calming fan 4 this arrangement can have no fibers on the top of the Deposit wall elements 11 and a fiber / glue knot formation can be prevented. The wall elements 11 protrude outwards from the opening roller arrangement 3 in the vertical direction to short via the spreader roller arrangement 5.

Der durch die Auflösewalzenanordnung 3 getriebene Stoffstrom wird mit hoher kinetischer Energie in die Beruhigungskammern 12 des Beruhigungsfächers 4 katapultiert. Die vorhandenen Luftströme zusammen mit den Fasern werden nun als Teilströme in den Beruhigungskammern 12 nach unten geleitet. Es können zwar weiterhin Turbulenzen in den einzelnen Beruhigungskammern 12 entstehen, aufgrund der räumlichen Begrenzung wird jedoch verhindert, dass es zu einer nennenswerten Umverteilung des Stoffstromes in Querrichtung kommen kann.The material flow driven by the opening roller arrangement 3 gets into the calming chambers with high kinetic energy 12 of the calming fan 4 catapulted. The existing ones Air flows along with the fibers are now called partial flows passed down in the calming chambers 12. It can turbulence continues in the individual calming chambers 12 arise, however due to the spatial limitation prevents a significant redistribution of the Material flow can come in the transverse direction.

Im Anschluss an den Beruhigungsfächer 4 gelangen die in den einzelnen Beruhigungskammern 12 nach unten geleiteten Teilströme auf die darunter liegend angeordnete Streuwalzenanordnung 5. Die Streuwalzenanordnung 5 besteht aus mehreren parallel und quer zur Förderrichtung angeordneten Streuwalzen. Die Streuwalzen sind längs zur Förderrichtung in horizontal ansteigender Linie angeordnet, um eine gleichmäßige Streuung und eine Höhenbegrenzung zu gewährleisten. Die Streuwalzen sind dabei unmittelbar unterhalb des Beruhigungsfächers 4 vorgesehen und fördern die rieselfähigen Güter, vorzugsweise die beleimten Holzfasern entgegen der Förderrichtung. Durch die Rotation der Streuwalzen werden gleichzeitig die Holzfasern auf das darunter kontinuierlich laufende Formband 6 als Faservlies aufgestreut und einer nachfolgenden Vorpressstation oder einer Plattenpresse zugeführt.Following the calming compartments 4, they reach the individual calming chambers 12 directed downwards Partial streams on the one below Spreading roller arrangement 5. The spreading roller arrangement 5 consists of several arranged parallel and transverse to the conveying direction Beaters. The spreader rollers are in along the conveying direction horizontally increasing line arranged to give a uniform To ensure scatter and a height limitation. The Spreading rollers are directly below the Calming fan 4 provided and promote the free-flowing Goods, preferably the glued wood fibers against the Conveying direction. By the rotation of the spreader rollers at the same time the wood fibers continuously on the underneath running form tape 6 sprinkled as a nonwoven and one subsequent pre-press station or a plate press fed.

In einer weiter nicht dargestellten Ausführungsform könnte auch im Anschluss an den Beruhigungsfächer eine zusätzliche Fördervorrichtung vorgesehen sein, die den Stoffstrom aus beleimten Fasern einer Streukopfanordnung 5 zuführt. Die zusätzliche Fördervorrichtung ist dabei als Dosierbandwaage ausgebildet, die kontinuierlich eine regelbare Fördermenge in die Streukopfanordnung fördert, so dass je nach Plattendicke und -breite von der Streukopfanordnung eine vorgebbare Menge auf das Formband streubar ist.In a further embodiment, not shown, could an additional one after the calming compartments Conveyor device can be provided that the material flow glue-fed fibers of a scattering head arrangement 5. The additional conveying device is a dosing belt scale trained who continuously in a controllable flow rate the spreading head arrangement promotes, depending on the plate thickness and width of the spreading head arrangement a predeterminable amount is sprinkled on the ribbon.

Claims (3)

Vorrichtung zum Streuen von beleimten Streugütern, insbesondere span- und faserförmige Güter, im Zuge der Herstellung von Holzwerkstoffplatten, mit einem Dosierbunker zum Austragen der beleimten Streugüter, auf eine Auflösewalzenanördnung, die zumindest zwei gegensinnig rotierend benachbart angeordnete, mit Auflöseelementen versehene Walzen, umfasst und mit einer anschließend angeordneten Streuwalzenanordnung, durch die das Streugut auf ein Formband aufstreubar ist, dadurch gekennzeichnet, dass unmittelbar der Auflösewalzenanordnung (3) nachgeschaltet ein Beruhigungsfächer (4) angeordnet ist, der aus mehreren in Förderrichtung nebeneinander angeordneten längs zur Förderrichtung sich erstreckende Wandelemente (11) besteht, wobei die Wandelemente (11) eine Vielzahl von Beruhigungskammern (12) bilden.Device for spreading glued spreading goods, in particular chip and fibrous goods, in the course of the manufacture of wood-based panels, with a dosing hopper for discharging the glued spreading goods, onto an opening roller arrangement, which comprises and with at least two rollers arranged in opposite directions, with opening elements a subsequently arranged spreader roller arrangement, by means of which the spreading material can be sprinkled onto a forming belt, characterized in that a calming fan (4) is arranged directly downstream of the opening roller arrangement (3) and consists of a plurality of wall elements (11) which are arranged next to one another in the conveying direction and extend along the conveying direction. consists, the wall elements (11) forming a plurality of calming chambers (12). Vorrichtung zum Streuen von beleimten Streugütern nach Patentanspruch 1, wobei die Wandelemente (11) einen Abstand von 50 - 500 mm bevorzugt 150 mm aufweisen.Device for spreading glued spreading material Claim 1, wherein the wall elements (11) one Have a distance of 50-500 mm, preferably 150 mm. Vorrichtung zum Streuen von beleimten Streugütern nach Patentanspruch 1 oder 2, wobei zwischen Beruhigungsfächer (4) und Streuwalzenanordnung (5) eine als Dosierbandwaage ausgebildete Fördereinrichtung angeordnet ist.Device for spreading glued spreading material Claim 1 or 2, being between calming subjects (4) and spreader roller arrangement (5) as a belt weigher trained conveyor is arranged.
EP20040001530 2003-02-03 2004-01-24 Device for distributing granular material onto a continously travelling support Expired - Fee Related EP1442857B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10304134 2003-02-03
DE2003104134 DE10304134A1 (en) 2003-02-03 2003-02-03 Device for spreading spreading material on a continuously moving surface

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EP1442857A2 true EP1442857A2 (en) 2004-08-04
EP1442857A3 EP1442857A3 (en) 2005-07-06
EP1442857B1 EP1442857B1 (en) 2010-03-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303786A (en) * 2011-06-20 2012-01-04 山东莱芜煤矿机械有限公司 Full-automatic intelligent leveling and depressing system
ITMO20100314A1 (en) * 2010-11-05 2012-05-06 Imal Srl DEVICE FOR FLUIDIFYING AND / OR ACCELERATING A FLOW OF INCOERENT MATERIALS IN THE FORM OF FIBERS, FLAKES OR CHIPS.

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ITMO20100314A1 (en) * 2010-11-05 2012-05-06 Imal Srl DEVICE FOR FLUIDIFYING AND / OR ACCELERATING A FLOW OF INCOERENT MATERIALS IN THE FORM OF FIBERS, FLAKES OR CHIPS.
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CN102303786B (en) * 2011-06-20 2013-10-30 山东莱芜煤矿机械有限公司 Full-automatic intelligent leveling and depressing system

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EP1442857B1 (en) 2010-03-17
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DE502004010893D1 (en) 2010-04-29

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