EP0175015B1 - Method and apparatus for the longitudinal orientation of particles - Google Patents

Method and apparatus for the longitudinal orientation of particles Download PDF

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Publication number
EP0175015B1
EP0175015B1 EP84111261A EP84111261A EP0175015B1 EP 0175015 B1 EP0175015 B1 EP 0175015B1 EP 84111261 A EP84111261 A EP 84111261A EP 84111261 A EP84111261 A EP 84111261A EP 0175015 B1 EP0175015 B1 EP 0175015B1
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EP
European Patent Office
Prior art keywords
discs
disc
shaft
side face
disks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP84111261A
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German (de)
French (fr)
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EP0175015A1 (en
Inventor
Wolfgang Bürkner
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Carl Schenck AG
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Carl Schenck AG
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Publication date
Application filed by Carl Schenck AG filed Critical Carl Schenck AG
Priority to DE8484111261T priority Critical patent/DE3483044D1/en
Priority to EP84111261A priority patent/EP0175015B1/en
Priority to US06/748,844 priority patent/US4666029A/en
Priority to CA000485810A priority patent/CA1232513A/en
Priority to FI853222A priority patent/FI79968C/en
Publication of EP0175015A1 publication Critical patent/EP0175015A1/en
Application granted granted Critical
Publication of EP0175015B1 publication Critical patent/EP0175015B1/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
    • B27N3/143—Orienting the particles or fibres

Definitions

  • the invention relates to a method for the longitudinal orientation of chips, in particular in the course of the production of OSB boards (Oriented Strandboard) with rotating discs which are arranged one behind the other on a rotating, in the direction of Veils over a, the fleece-receiving, moving pad, the waves each have the same distance.
  • OSB boards Oriented Strandboard
  • a device for producing a directional wood particle of different dimensions containing chipboard has become known (DE-PS 1174058), in which a plurality of mutually movable, connected to a drive device alignment elements, which are inclined to the horizontal, substantially parallel to the inclined formation surface of the Chip mat extending plane and are arranged substantially parallel to each other to form narrow alignment passages, the width of these passages and also the distance between the lower edges of the alignment elements on the one hand and the training surface of the chip mat on the other hand is slightly larger than the average length for wood particles.
  • the spacing of the alignment elements from one another allows the chips to be oriented longitudinally to be positioned transversely to the longitudinal orientation again in the area of the alignment elements, since the chips to be oriented longitudinally can only be guided for a long time along the common chord of two adjacent disks, but this does are attached to two different shafts arranged one behind the other.
  • the problems of orientation wash with increasing chip dimensions and reach their maximum when orienting strands.
  • the orienting beaches consist of wood particles, the dimensions of which do not correspond to the defined chip dimensions for the production of normal chipboard. Namely, wood particles (strands) are oriented, which are preferably 70 mm long, 10 to 30 mm wide and have a thickness of 0.5 to 1 mm; Splinters and extreme excesses cannot be avoided with such a wood preparation, unless additional complex sorting and post-treatment devices are provided.
  • the object of the invention is to propose a method and a device for carrying out this method in which there is unambiguous guidance in the entire vertical region of the longitudinal orientation and that there are no elements in the straightening region which hinder the oriented depositing of the chips, that can lead to blockages.
  • This object is achieved by the inventive method disclosed in the characterizing features of claim 1.).
  • the inventive method step according to claim 2) causes the chips, in particular the strands, to tilt, which contributes significantly to the blocking-free penetration of the strands between the pane walls.
  • a device for carrying out the method according to claim 1) and / or 2) is protected, the interacting disks that are present on several shafts arranged one behind the other dividing a rotating disk gate form, at the same time also represent the respective rotating disk wall and, by selecting the distance in the region of the average half chip length, bring about complete orientation.
  • the design of the subject of the invention of according to claim 5,) serves to keep the wall clean on both sides by cleaning the partially touching panes sliding past each other.
  • outermost disks are used in each case, which have spikes arranged on the outside in a radial direction. This configuration according to the invention also prevents blockages of these through openings in this area .
  • the throw-back roller placed under protection serves in particular with a very small division of the disk walls for the reorientation of chips or beaches to be oriented that are too long.
  • an unoriented stream of chips 5 is placed as a oriented fleece 6 on a forming belt 1 via first disks 2 and second disks 3 arranged on rotating shafts 4.
  • the shafts 4 are arranged in a housing 16 which can be moved in height in order to be adapted to the angle of repose.
  • the orientation in the prior art now takes place through the first panes 2 and the second panes 3.
  • the projection of the first panes 2 covers the second panes 3 only in one minimal area, so that the distance 7 between the first disks 2 and the distance 7a between the second disks 3, which is equal to the distance between the first disks 2, are used for orientation.
  • Fig. 1c shows a section through Fig. 1, which was made at the level of the lower imaginary separation of the first disks 2 and second disks 3.
  • the disks used for orientation according to the prior art are only partially oriented in the area of a region 12, guidance only from the imaginary entry of the first and second disks 2 and 3 to the imaginary one in the area of the plane 13 The first and second disks exit.
  • FIGS. 2a, 2b and 2c show the pane arrangement according to the invention in cooperation with FIGS. 2a, 2b and 2c.
  • the cuts made as a result, which are shown in Figures 2a, 2b, 2c, show that, according to the invention, the entire non-oriented chip flow 5 is caused by a closed disc gate rotating from the first discs 2 and, in the example, the same size of the second discs 3 Gate division 10 is transported through and complete guidance from a first disc contact 14 to a last disc contact 15 is maintained in the vertical direction.
  • the closed rotating disk creel 11, consisting of the first disks 2 and the second disks 3, is designed so that it can be raised relative to the forming belt 1 in such a way that it can be aligned over the fleece 6 in accordance with the angle of repose of the oriented chips for the production of OSB panels.
  • FIG. 4 shows an embodiment of the subject matter of the invention, as a result of additional measures (pairing large and small disks) in the conveying direction (FIG. 4) and transversely thereto (FIG. 4b) that the beach or the chip flow is discharged and entered.
  • the rotating shafts 4, which support first large disks 2 and small first disks 2 'and the second large slides 3 and second small disks 3', are supported in the housing 16.
  • a resulting gap 17 between the housing 16 and the large first and second small disks 2, 3 ' is made by Stachel disks 18 interrupted, which are also arranged on the shafts 4, by means of which the chips or strands which may not accumulate are transported through the gap 17.
  • FIG. 4 shows a device according to the invention in cooperation with a pre-dissolving of the chip material to be oriented for the production of OSB boards and a recoil roller.
  • Several such shafts 4, 2 'and 3, 3' provided with disks are arranged one behind the other in the housing 16, in such a way that the large disks of the one shaft 4 with the small disks are in each case arranged. the following wave 4 cooperate.
  • the non-oriented chip material 5, which is pre-dissolved by pre-dissolving rollers 20, 21, is fed to the upper inlet of the closed rotating disc gate 11.
  • the return roller 22 has spikes 23.
  • Auxiliary devices 24, 25 are provided on the housing 16, by means of which the housing 16 can be raised against the horizontal position of the forming belt according to the angle of repose of the oriented fleece 6 (see double arrow 27).
  • the pre-dissolving rollers 20, 21 and the recoil roller 22 can be arranged in a separate, covered stand 26, into which the unsorted chip stream 5 falls from above. As can be clearly seen in FIG.
  • the directions of rotation of the successive rotating shafts 4 can also be selected alternately clockwise and counterclockwise.
  • the return roller 22 which is arranged above the last roller, and to rotate it in the opposite sense. If the last rotating roller 4 rotates counterclockwise, this return roller can be omitted.
  • 4a also schematically shows an arrangement of rotating shafts 4, in which the increased self-cleaning effect by arranging these disks is to be described only on a row of equally sized first and second disks 2 and 3.
  • the disc 2a cooperates with its outer side surface 30 with the inner side surface 31 of the disc 3a, while its outer side surface 30 cooperates with the inner side surface 31 of the disc 2.
  • the disks 2, 3, 2a and 3a it is also possible for the disks 2, 3, 2a and 3a to be arranged in such a way that the inner side surfaces 31 of the subsequent disk interact with the outer side surface 30 of the previous disk in the sense of additional self-cleaning.
  • 4b shows, using the example of large disks and small disks 2, 2 'or 3, 3' mounted on a shaft 4, clearly as a chip 29 due to the different diameters of successive disks into the gate, which has a gate division 10, which is slightly is greater than half the chip length. As can be seen, this takes place in that the distance between disks 2 and 3, 2 'and 3' of the same size is slightly greater than the average length of a chip to be oriented.

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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)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Längsorientieren von Spänen insbesondere im Zuge der Herstellung von OSB-Platten (Oriented Strandboard) mit auf rotierenden, in Veilsrichtung hintereinander über einer, das Vlies aufnehmenden, sich bewegenden Unterlage in entsprechendem Abstand von dieser angeordneten Wellen befindlichen Scheiben, die jeweils den gleichen Abstand besitzen.The invention relates to a method for the longitudinal orientation of chips, in particular in the course of the production of OSB boards (Oriented Strandboard) with rotating discs which are arranged one behind the other on a rotating, in the direction of Veils over a, the fleece-receiving, moving pad, the waves each have the same distance.

Es ist ein Gerät zur Herstellung einer gerichtete Holzteilchen unterschiedlicher Abmessung enthaltene Spanplatte bekannt geworden (DE-PS 1174058), bei der eine Vielzahl von zueinander beweglichen, mit einer Antriebsvorrichtung verbundenen Ausrichtungselementen, die in einer zur Horizontalen geneigten, im wesentlichen parallel zur schrägen Ausbildungsfläche der Spanmatte verlaufenden Ebene und im wesentlichen parallel zueinander unter Ausbildung enger Ausrichtungsdurchgänge angeordnet sind, wobei die Breite dieser Durchgänge und ebenso der Abstand zwischen den unteren Kanten der Ausrichtungselemente einerseits und der Ausbildungsfläche der Spanmatte andererseits unwesentlich größer ist als die durchschnittliche Länge für Holzteilchen. Zufolge der Relativbewegung der Ausrichtungselemente gegeneinander und dem Abstand der Elemente voneinander ist in derartiges Gerät zur Längsorientierung von Spänen im Zuge der Herstellung von OSB-Platten nicht geeignet. Insbesondere der Abstand der Ausrichtungselemente voneinander gestattet es, den längs zu orientierenden Spänen bereits im Bereich der Ausrichtungselemente sich wieder quer zur Längsorientierung zu stellen, da nur im wesentlichen entlang der gemeinsamen Sehne zweier nebeneinanderliegenden Scheiben eine längste Führung der längs zu orientierenden Späne erfolgt, die jedoch auf zwei verschiedenen hintereinander angeordneten Wellen befestigt sind. Da nur die jeweils auf anderen Wellen befindlichen Scheiben, wie oben bereits ausgeführt, eine Führung von längs zu orientierenden Spänen, in einem Abstand, der nur unwesentlich größer ist als die durchschnittliche Länge der Holzteilchen, bewirken und die Scheiben auf einer Welle einen gegenseitigen Abstand besitzen, der mindestens doppelt so groß ist wie die durchschnittliche Länge der Holzteilchen, fällt der Großteil des längs zu orientierenden Spangutes nicht orientiert durch diese Ausrichtungselemente und wird, da durch die Scheiben nicht beeinflußt, im wesentlichen in beliebiger Richtung im Vlies abgelegt.A device for producing a directional wood particle of different dimensions containing chipboard has become known (DE-PS 1174058), in which a plurality of mutually movable, connected to a drive device alignment elements, which are inclined to the horizontal, substantially parallel to the inclined formation surface of the Chip mat extending plane and are arranged substantially parallel to each other to form narrow alignment passages, the width of these passages and also the distance between the lower edges of the alignment elements on the one hand and the training surface of the chip mat on the other hand is slightly larger than the average length for wood particles. As a result of the relative movement of the alignment elements relative to one another and the spacing of the elements from one another, such a device is not suitable for the longitudinal orientation of chips in the course of the production of OSB boards. In particular, the spacing of the alignment elements from one another allows the chips to be oriented longitudinally to be positioned transversely to the longitudinal orientation again in the area of the alignment elements, since the chips to be oriented longitudinally can only be guided for a long time along the common chord of two adjacent disks, but this does are attached to two different shafts arranged one behind the other. Since only the disks located on other shafts, as already explained above, cause chips to be oriented lengthways at a distance which is only insignificantly greater than the average length of the wood particles, and the disks on one shaft are at a mutual distance , which is at least twice as large as the average length of the wood particles, the majority of the lengthwise chip material does not fall through these alignment elements and, since it is not influenced by the disks, is deposited in the fleece essentially in any direction.

Es hat nicht an Versuchen gefehlt, diesen Mangel im Hinblick auf die Orientierung zu beseitigen. So wurden Einrichtungen bekannt, bei denen unterhalb der mit Scheiben versehenen Wellen in Förderrichtung sich erstreckende stationäre Blechgatter angeordnet wurden, in die die einzelnen Scheiben hineinragen. Auch wurde versucht, mit Hilfe von Stachelanordnungen, die an den Scheiben angebracht waren, ein Hineintreiben der längs zu orientierenden Späne zu bewirken. Es entsteht jedoch hier zwangsläufig eine Anordnung, bei der im Eintrittsbereich des stationären Gatters die Breite des jeweiligen Durchgangs des Gatters, die im unbeeinflußten Bereich des Gatters unwesentlich größer ist als die Hälfte der durchschnittlichen Länge der Holzteilchen durch die eindringenden Scheiben verringert wird. Dies kann bei extremen fehlerhaften Spanabmessungen oder Splittergut zum Blockieren führen.There has been no shortage of attempts to remedy this lack of orientation. Thus, devices have become known in which stationary sheet metal gates, in which the individual disks protrude, are arranged below the shafts provided with disks in the conveying direction. Attempts were also made to drive the longitudinally oriented chips in with the aid of spike arrangements which were attached to the disks. However, an arrangement inevitably arises in which the width of the respective passage of the gate, which in the uninfluenced area of the gate is insignificantly greater than half the average length of the wood particles, is reduced by the penetrating disks in the entry region of the stationary gate. This can lead to blocking in the case of extremely faulty chip dimensions or fragments.

Die Probleme der Orientierung waschsen mit zunehmenden Spanabmessungen und erreichen ihr Maximum beim Orientieren von Strands. Die zur orientierenden Strands bestehen aus Holzteilchen, deren Abmessungen der definierten Spanabmessungen für die Herstellung von Normalspanplatten nicht entsprechen. Es werden nämlich Holzteilchen (Strands) orientiert, die vorzugsweise 70 mm lang, 10 bis 30 mm breit sind und eine Dicke von 0,5 bis 1 mm aufweisen; auch sind bei einer derartigen Holzaufbereitung Splitter und extreme übermaße nicht zu vermeiden, wenn nicht zusätzliche aufwendige Sortier- und Nachbehandlungseinrichtungen vorgesehen werden.The problems of orientation wash with increasing chip dimensions and reach their maximum when orienting strands. The orienting beaches consist of wood particles, the dimensions of which do not correspond to the defined chip dimensions for the production of normal chipboard. Namely, wood particles (strands) are oriented, which are preferably 70 mm long, 10 to 30 mm wide and have a thickness of 0.5 to 1 mm; Splinters and extreme excesses cannot be avoided with such a wood preparation, unless additional complex sorting and post-treatment devices are provided.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Durchführung dieses Verfahrens in Vorschlag zu bringen, bei dem im gesamten Vertikalbereich der Längsorientierung eine einedeutige Führung vorhanden ist und daß keine das orientierte Ablegen der Späne hindernde Elemente im Richtbereich vorhanden sind, die zu Blockierungen führen können. Diese Aufgabe wird durch das in den kennzeichnenden Merkmalen des Anspruch 1.) offenbarte erfinderische Verfahren gelöst. Durch in Fließrichtung geschlossene rotierende, senkrechte beabstandete Scheibenwände wird bis knapp über die Ablage im Vlies zwangsläufig eine vollständige Führung des zu orientierenden Spanes erreicht und durch die Rotation der senkrechten Scheibenwände insbesondere der Eintritt der Strands zwischen diese Scheibenwände unterstützt.Proceeding from this, the object of the invention is to propose a method and a device for carrying out this method in which there is unambiguous guidance in the entire vertical region of the longitudinal orientation and that there are no elements in the straightening region which hinder the oriented depositing of the chips, that can lead to blockages. This object is achieved by the inventive method disclosed in the characterizing features of claim 1.). By rotating, vertically spaced disc walls closed in the direction of flow, complete guidance of the chip to be oriented is inevitably achieved up to just above the deposit in the fleece, and the rotation of the vertical disc walls in particular supports the entry of the beaches between these disc walls.

Der erfinderische Verfahrensschritt gemäß Anspruch 2.) bewirkt ein Kippen der Späne, insbesondere der Strands, was maßgeblich zum blokkierfreien Eindringen der Strands zwischen die Scheibenwände beiträgt.The inventive method step according to claim 2) causes the chips, in particular the strands, to tilt, which contributes significantly to the blocking-free penetration of the strands between the pane walls.

Mit den kennzeichnenden Merkmalen des Anspruchs 3.) wird eine Vorrichtung zur Durchführung der Verfahren nach Anspruch 1.) und/ oder 2.) unter Schutz gestellt, wobei die miteinander zusammenwirkenden Scheiben, die auf mehreren hintereinander angeordneten Wellen vorhanden sind die Teilung eines rotierenden Scheibengatters bilden, gleichzeitig auch die jeweilige rotierende Scheibenwand darstellen und durch die Wahl des Abstandes im Bereich der durchschnittlichen halben Spanlänge eine vollständige Orientierung bewirken.With the characterizing features of claim 3), a device for carrying out the method according to claim 1) and / or 2) is protected, the interacting disks that are present on several shafts arranged one behind the other dividing a rotating disk gate form, at the same time also represent the respective rotating disk wall and, by selecting the distance in the region of the average half chip length, bring about complete orientation.

Durch die in Anspruch 4.) unter Schutz gestellte Ausgestaltung wird ein Abkippen langer Späne in das Gatter erfindungsgemäß durch die Wahl verschiedener Scheibendurchmesser unterstützt.Due to the design protected in claim 4), tipping of long chips into the creel is supported according to the invention by the choice of different disc diameters.

Die Ausgestaltung des Erfindungsgegenstandes gemäß Anspruch 5,) dient dem beidseitigen Sauberhalten der Wand durch reinigendes aneinander vorbeigleiten der sich teilberührenden Scheiben.The design of the subject of the invention of according to claim 5,) serves to keep the wall clean on both sides by cleaning the partially touching panes sliding past each other.

In Anspruch 6.) wird eine weitere Anordnung von Scheiben unter Schutz gestellt, die einen Selbstreinigungseffekt besitzen.In claim 6.) a further arrangement of panes is placed under protection, which have a self-cleaning effect.

Um den Bereich zwischen dem Gehäuse und der äußersten rotierenden Scheibengatterwand von Spänen freizuhalten, werden gemäß Anspruch 7.) jeweils äußerste Scheiben eingesetzt, die an ihrer Außenseite in radialer Richtung angeordnete Stacheln tragen, Durch diese erfindungsgemäße Ausgestaltung werden auch in diesem Bereich Verstopfungen dieser Durchtrittsöffnungen vermieden.In order to keep the area between the housing and the outermost rotating disk gate wall free of chips, outermost disks are used in each case, which have spikes arranged on the outside in a radial direction. This configuration according to the invention also prevents blockages of these through openings in this area .

Die in Anspruch 8.) unter Schutz gestellte Rückwurfwalze dient insbesondere bei sehr kleiner Teilung der Scheibenwände zur erneuten Orientierung zu langer zu orientierender Späne bzw. Strands.The throw-back roller placed under protection serves in particular with a very small division of the disk walls for the reorientation of chips or beaches to be oriented that are too long.

In der Zeichnung wird die Erfindung näher erläutert. Es zeigen in schematischer Darstellung:

  • Fig. 1, 1a, 1b, 1c in Ansicht und geschnitten eine Einrichtung zur Längsorientierung von Spänen nach dem Stand der Technik
  • Fig. 2, 2a, 2b, 2c in Ansicht und geschnitten eine erfindungsgemäße Einrichtung zur Längsorientierung,
  • Fig. 3 eine erfindungsgemäße Anordnung von Stachelwalzen,
  • Fig. 4 eine erfindungsgemäße Einrichtung im Zusammenwirken mit einer Vorauflösung von zu orientierenden Spänen und einer Rückwurfwalze,
  • Fig. 4a Ein selbstreinigendes Scheibengatter
  • Fig. 4b Eine Anordnung von Scheiben verschiedenen Durchmessers auf einer Welle.
The invention is explained in more detail in the drawing. In a schematic representation:
  • Fig. 1, 1a, 1b, 1c in view and cut a device for the longitudinal orientation of chips according to the prior art
  • 2, 2a, 2b, 2c in view and section an inventive device for longitudinal orientation,
  • 3 shows an arrangement of spiked rollers according to the invention,
  • 4 shows a device according to the invention in cooperation with a pre-resolution of chips to be oriented and a return roller,
  • Fig. 4a A self-cleaning disc creel
  • Fig. 4b An arrangement of disks of different diameters on a shaft.

In den Figuren werden dieselben Bauteile mit denselben Bezugsziffern bezeichnet.In the figures, the same components are designated with the same reference numbers.

Gemäß Fig. 1 wird auf ein Formband 1 über auf rotierenden Wellen 4 angeordneten ersten Scheiben 2 und zweiten Scheiben 3 ein nicht orientierter Spänestrom 5 als orientiertes Vlies 6 zur Ablage gebracht.According to FIG. 1, an unoriented stream of chips 5 is placed as a oriented fleece 6 on a forming belt 1 via first disks 2 and second disks 3 arranged on rotating shafts 4.

Hierbei sind die Wellen 4 in einem Gehäuse 16, das höhenbeweglich ist, um dem Schüttungswinkel angepaßt zu werden, angeordnet.Here, the shafts 4 are arranged in a housing 16 which can be moved in height in order to be adapted to the angle of repose.

Die Orientierung beim Stand der Technik geschieht nunmehr durch die ersten Scheiben 2 und die zweiten Scheiben 3. Wie der durch die Ansicht gemäß Fig. 1 gelegte Schnitt gemäß Fig. 1a zeigt, überdeckt die Projizierung der ersten Scheiben 2 die zweiten Scheiben 3 nur in einem minimalen Bereich, so daß zur Orientierung im wesentlichen der Abstand 7 zwischen den ersten Scheiben 2 und der Abstand 7a zwischen den zweiten Scheiben 3 der gleich dem Abstand zwischen den ersten Scheiben 2 ist, verwendet wird. Nur längs einer vertikalen Ebene 13, die senkrecht zur Förderrichtung verläuft und die parallel zu den Wellen 4 ist und die gemeinsamen Sehnen der ersten Scheiben 2 und der zweiten Scheiben 3 beinhaltet, wird eine Ausrichtung mit einem weiteren Abstand 8 zwischen den ersten Scheiben 2 und den zweiten Scheiben 3 erfolgen. Die maßige Orientierungswirkung einer derartigen Orientierungseinrichtung ist offensichtlich, da die sich über die gesamte senkrechte Höhe der Scheiben 2, erstreckenden Abstände 7 und 7a in keiner Weise einen Richteffekt für Späne bewirken, die kürser als diese Abstände sind, darüber hinaus werden variable Freiräume 9 in axialer Richtung der rotierenden Wellen geschaffen, durch die ebenfalls zu orientierendes Material austreten kann (vgl. auch Fig. 1 b), was zur weiteren Verschlechterung des Orientierungseffektes beiträgt.The orientation in the prior art now takes place through the first panes 2 and the second panes 3. As the section through the view according to FIG. 1 shows according to FIG. 1a, the projection of the first panes 2 covers the second panes 3 only in one minimal area, so that the distance 7 between the first disks 2 and the distance 7a between the second disks 3, which is equal to the distance between the first disks 2, are used for orientation. Only along a vertical plane 13, which is perpendicular to the conveying direction and which is parallel to the shafts 4 and contains the common chords of the first disks 2 and the second disks 3, is an alignment with a further distance 8 between the first disks 2 and the second disks 3 take place. The moderate orientation effect of such an orientation device is obvious, since the spacings 7 and 7a, which extend over the entire vertical height of the disks 2, in no way bring about a straightening effect for chips which are shorter than these distances, and variable free spaces 9 become more axial Direction of the rotating shafts created through which material to be oriented can also emerge (see also FIG. 1 b), which contributes to a further deterioration in the orientation effect.

Fig. 1c stellt einen Schnitt durch die Fig. 1 dar, der in Höhe der unteren gedachten Trennung der ersten Scheiben 2 und zweiten Scheiben 3 erfolgt ist. Ganz allgemein kann festgestellt werden, daß die zur Orientierung gemäß dem Stand der Technik verwendeten Scheiben nur im Bereich eines Bereichs 12 teilorientiert werden, wobei nur im Bereich der Ebene 13 eine Führung vom gedachten Eintritt der ersten und zweiten Scheiben 2 bzw. 3 bis zum gedachten Austritt der ersten und zweiten Scheiben erfolgt.Fig. 1c shows a section through Fig. 1, which was made at the level of the lower imaginary separation of the first disks 2 and second disks 3. In general, it can be stated that the disks used for orientation according to the prior art are only partially oriented in the area of a region 12, guidance only from the imaginary entry of the first and second disks 2 and 3 to the imaginary one in the area of the plane 13 The first and second disks exit.

Fig. 2 zeigt im Zusammenwirken mit den Figuren 2a, 2b, und 2c die erfindungsgemäße Scheibenanordnung. Die hierdurch gelegten Schnitte, die in den Figures 2a, 2b, 2c dargestellt sind, lassen erkennen, daß gemäß der Erfindung der gesamte nichtorientierte Spänestrom 5 durch ein aus den ersten Scheiben 2 und in dem Beispiel gleich großen zweiten Scheiben 3 rotierendes geschlossenes Scheibengatter mit einer Gatterteilung 10 hindurchtransportiert wird und auch eine komplette Führung von einer ersten Scheibenberührung 14 bis zu einer letzten Scheibenberührung 15 in vertikaler Richtung aufrechterhalten wird.2 shows the pane arrangement according to the invention in cooperation with FIGS. 2a, 2b and 2c. The cuts made as a result, which are shown in Figures 2a, 2b, 2c, show that, according to the invention, the entire non-oriented chip flow 5 is caused by a closed disc gate rotating from the first discs 2 and, in the example, the same size of the second discs 3 Gate division 10 is transported through and complete guidance from a first disc contact 14 to a last disc contact 15 is maintained in the vertical direction.

Das geschlossene rotierende Scheibengatter 11, bestehend aus den ersten Scheiben 2 und den zweiten Scheiben 3 ist gegenüber dem Formband 1 so anhebbar ausgebildet, daß es entsprechend dem Shüttwinkel der orientierten Späne zur Herstellung von OSB-Platten über dem Vlies 6 ausgerichtet werden kann.The closed rotating disk creel 11, consisting of the first disks 2 and the second disks 3, is designed so that it can be raised relative to the forming belt 1 in such a way that it can be aligned over the fleece 6 in accordance with the angle of repose of the oriented chips for the production of OSB panels.

Die Figuren 1 und 2 dienen zur Erläuterung der gravierenden Unterschiede zwischen dem Stand der Technik und der Erfindung im Hinblick auf die Ausbildung eines Gatters, durch welche die Strands oder Späne im Falle des Stands der Technik nicht geführt, ei der Erfindung dagegen vom Eintritt bis zum Austritt aus dem gleich beabstandeten Gatter geführt werden. In Figur 4 wird eine Ausgestaltung des Erfindungsgegenstandes dargestellt, wie durch zusätzliche Maßnahmen (Paarung großer und kleiner Scheiben) in Förderrichtung (Fig. 4) und quer dazu (Fig. 4b) Aufgabe und Eintritt der Strands oder des Spänestroms gewährleistet ist.Figures 1 and 2 serve to explain the serious differences between the prior art and the invention with regard to the formation of a gate through which the beaches or chips are not passed in the case of the prior art, ei the invention, however, from entry to Leaving the equally spaced gate are performed. FIG. 4 shows an embodiment of the subject matter of the invention, as a result of additional measures (pairing large and small disks) in the conveying direction (FIG. 4) and transversely thereto (FIG. 4b) that the beach or the chip flow is discharged and entered.

In Fig. 3 werden die rotierenden Wellen 4, die erste große Scheiben 2 und kleine erste Scheiben 2' und die zweiten großen Schieben 3 und zweite kleinen Scheiben 3' tragen, in dem Gehäuse 16 abgestützt. Ein sich ergebender Spalt 17 zwischen dem Gehäuse 16 und den großen ersten und zweiten kleinen Scheiben 2, 3' wird von Stachelscheiben 18 unterbrochen, die ebenfalls auf den Wellen 4 angeordnet sind, mit dessen Hilfe die sich dont ggfs. anhäufenden Späne bzw. Strands durch den Spalt 17 transportiert werden.3, the rotating shafts 4, which support first large disks 2 and small first disks 2 'and the second large slides 3 and second small disks 3', are supported in the housing 16. A resulting gap 17 between the housing 16 and the large first and second small disks 2, 3 'is made by Stachel disks 18 interrupted, which are also arranged on the shafts 4, by means of which the chips or strands which may not accumulate are transported through the gap 17.

Fig. 4 stellt eine erfindungsgemäße Einrichtung im Zusammenwirken mit einer Vorauflösung des zu orientierenden Spangutes zur Herstellung von OSB-Platten und einer Rückwurfwalze dar. Die ersten großen Scheiben 2 und die ersten kleinen Scheiben 2' sind alternierend auf einer Welle 4 angeordnet und bilden somit quer zur Fortschrittsrichtung, wobei die Fortschrittsrichtung mit Pfeil 19 dargestellt wird, eine wellenförmige Kontur. Gleiches gilt für die auf der nächsten rotierenden Welle 4 angeordneten zweiten großen Scheibe 3 und zweiten kleinen Scheibe 3'. Mehrere derartige mit Scheiben 2, 2' und 3, 3' versehene Wellen 4 sind hintereinander im Gehäuse 16 angeordnet, dergestalt, daß jeweils dei großen Scheiben der einen Welle 4 mit den kleinen Scheiben . dernachfolgenden Welle 4 zusammenwirken. Das von Vorauflösewalzen 20, 21 voraufgelöste, nichtborientierte Spangut 5, wird dem oberen Eintritt des geschlossenen rotierenden Scheibengatters 11 zugeführt. Eine Rückwurfwalze 22, die mit der letzten rotierende Walze 4 zusammenarbeitet, ist ein geeignetes Hilfsmittel evtl. zu weit vorgetragenes, zu langes Spangut, welches wesentlich länger als eine doppelte Gatterteilung ist, zurückzuwerfen. Die Rückwurfwalze 22 besitzt Stacheln 23. Am Gehäuse 16 sind Hilfsvorrichtungen 24, 25 vorgesehen, mit denen das Gehäuse 16 gegen die horizontale Lage des Formbandes entsprechend de Schüttwinkel des orientieren Vlieses 6 (siehe Doppelpfeil 27) angehoben werden kann. Die Vorauflösewalzen 20, 21 und die Rückwurfwalze 22 können in einem getrennten verkleideten Gerüst 26 angeordnet sein, in das von oben her der unsortierte Spänestrom 5 einfällt. Wie in Fig. 4 deutlich zu erkennen, wird während des Orientiervorganges bei Verwendung großer erste Scheiben 2 und kleiner zweiter Scheiben 3' eine ständig Führung des zu orientierenden Stroms von der ersten Scheibenberührung 14a bis zur letzten Scheibenberührung 15a gewährleistet. Es wird an dieser Figur deutlich, daß im Gegensatz zum Stand der Technik eine tatsächliche und vollständige Führung des zu orientierenden Spangutes über die gesamte Höhe der Orientierungseinrichtung erfolgt.4 shows a device according to the invention in cooperation with a pre-dissolving of the chip material to be oriented for the production of OSB boards and a recoil roller. The first large disks 2 and the first small disks 2 'are arranged alternately on a shaft 4 and thus form transversely to the direction of progress, the direction of progress being represented by arrow 19, a wavy contour. The same applies to the second large disk 3 and second small disk 3 'arranged on the next rotating shaft 4. Several such shafts 4, 2 'and 3, 3' provided with disks are arranged one behind the other in the housing 16, in such a way that the large disks of the one shaft 4 with the small disks are in each case arranged. the following wave 4 cooperate. The non-oriented chip material 5, which is pre-dissolved by pre-dissolving rollers 20, 21, is fed to the upper inlet of the closed rotating disc gate 11. A throw-back roller 22, which works together with the last rotating roller 4, is a suitable aid, possibly throwing away too long, too long chip material, which is much longer than a double gate division. The return roller 22 has spikes 23. Auxiliary devices 24, 25 are provided on the housing 16, by means of which the housing 16 can be raised against the horizontal position of the forming belt according to the angle of repose of the oriented fleece 6 (see double arrow 27). The pre-dissolving rollers 20, 21 and the recoil roller 22 can be arranged in a separate, covered stand 26, into which the unsorted chip stream 5 falls from above. As can be clearly seen in FIG. 4, a constant guidance of the current to be oriented from the first disk contact 14a to the last disk contact 15a is ensured during the orientation process when using large first disks 2 and small second disks 3 '. It is clear from this figure that, in contrast to the prior art, the chip material to be oriented is actually and completely guided over the entire height of the orientation device.

Falls die in Fig. 4 dargestellte Einrichtung ohne die Vorauflösewalzen 20, 21 betrieben wird, können auch die Drehrichtungen der aufeinanderfolgenden rotierenden Wellen 4 jeweils wechselweise in und entgegen dem Uhrzeigersinn gewählt werden. Im Falle der Rotation der letzten rotierenden Welle im Uhrzeigersinn empfiehlt es sich, die Rückwurfwalze 22, die oberhalb der letzten Walze angeordnet ist, zu benutzen und im entgegengesetzten Sinne umlaufen zu lassen. Im Falle des Umlaufens der letzten rotierenden Walze 4 entgegen dem Uhrzeigersinn kann diese Rückwurfwalze entfallen.If the device shown in FIG. 4 is operated without the pre-dissolving rollers 20, 21, the directions of rotation of the successive rotating shafts 4 can also be selected alternately clockwise and counterclockwise. In the case of the rotation of the last rotating shaft in a clockwise direction, it is advisable to use the return roller 22, which is arranged above the last roller, and to rotate it in the opposite sense. If the last rotating roller 4 rotates counterclockwise, this return roller can be omitted.

In Fig. 4a ist weiter schematisch eine Anordnung rotierender Wellen 4 dargestellt, bei der nur an einer Reihe hintereinander angeordneter gleich großer erster und zweiter Scheiben 2 und 3 der erhöhte Selbstreinigungseffekt durch Anordnung dieser Scheiben beschrieben werden soll. Die Scheibe 2a, wirkt mit ihrer äußeren Seitenfläche 30 mit der inneren Seitenfläche 31 der Scheibe 3a zusammen, während deren äußere Seitenfläche 30 mit der inneren Seitenfläche 31 der Scheibe 2 zusammenwirkt. Es ist jedoch auch möglich, daß eine umgekehrte Anordnung der Scheiben 2, 3, 2a, und 3a dergestalt erfolgt, daß jeweils die inneren Seitenflächen 31 der nachfolgenden Scheibe mit den äußeren Seitenfläche 30 der vorhergehenden Scheibe im Sinne einer zusätzlichen Selbstreinigung zusammenwirken.4a also schematically shows an arrangement of rotating shafts 4, in which the increased self-cleaning effect by arranging these disks is to be described only on a row of equally sized first and second disks 2 and 3. The disc 2a, cooperates with its outer side surface 30 with the inner side surface 31 of the disc 3a, while its outer side surface 30 cooperates with the inner side surface 31 of the disc 2. However, it is also possible for the disks 2, 3, 2a and 3a to be arranged in such a way that the inner side surfaces 31 of the subsequent disk interact with the outer side surface 30 of the previous disk in the sense of additional self-cleaning.

Fig. 4b zeigt am Beispiel von auf eine Welle 4 aufgezogener großer Scheiben und kleiner Scheiben 2, 2' bzw. 3, 3' wie ein Span 29 zufolge der verschiedenen Durchmesser aufeinanderfolgender Scheiben eindeutig in das Gatter, welches eine Gatterteilung 10 besitzt, die geringfügig größer als die Hälfte der Spanlänge ist, eindringt. Dies geschieht, wie ersichtlich, dadurch, daß der Abstand gleich großer Scheiben 2 bzw. 3, 2' bzw. 3' geringfügig großer als die durchschnittliche Länge eines zu orientierenden Spanes ist.4b shows, using the example of large disks and small disks 2, 2 'or 3, 3' mounted on a shaft 4, clearly as a chip 29 due to the different diameters of successive disks into the gate, which has a gate division 10, which is slightly is greater than half the chip length. As can be seen, this takes place in that the distance between disks 2 and 3, 2 'and 3' of the same size is slightly greater than the average length of a chip to be oriented.

Claims (8)

1. A method of laying down chips in a longitudinally orientated manner for forming a mat, particularly in the course of production of orientated strandboard on a continuously moving support over which there are provided rotating shafts which are equipped with discs and the axes of which extend transversely to the direction of advance of the mat and wherein the discs on each shaft have the same mutual spacing, characterised on that the longitudinal orientation of the chips is effected solely by parallel compartments of equal width with closed vertical side walls extending in the direction of advance of the mat and formed from the rotating discs.
2. A method according to Claim 1, characterised in that the longitudinal orientation is initiated by tipping the strands over the upper edge of the side walls.
3. An apparatus for carrying out the method according to Claim 1 and/or 2 for the longitudinal orientation of chips of different length, particularly in the source of production of an endless chip mat for the production of oriented strand- boards by means of a plurality of discs mounted on rotating shafts arranged one behind the other in the direction of the mat, the discs on each shaft having the same preset mutual spacing, characterised in that the first discs (2 or 2') having the same preset mutual spacing, of one shaft touch the second discs (3 or 3, 3') of the next shaft (4) with their side faces, that the same preset mutual spacing of the discs (2 or 2, 2'; 3 or 3, 3') represents the spacing of a rotating closed disc grating (11), and that this spacing lies within the range of half the average chip length.
4. An apparatus according to Claim 3, characterised in that the discs (2, 2' or 3, 3') on a shaft have alternately different diameters and that a large disc (2) cooperates with a small disc (3') of the following shaft in each case, and that the speed of rotation of the shafts is the same.
5. An apparatus according to Claim 3 and/or 4, characterised in that the following disc (2a) in each case cooperates with its outer side face (30) with the inner side face (31) of the preceding disc (3a), and that the disc (3) following the following disc (2a) cooperates with its outer side face (30) with the inner side face (31) of the preceding disc (2a).
6. An apparatus according to Claim 3 and/or 4, characterised in that the following disc (3a) in each case cooperates with its inner side face with the outer side face of the preceding disc (2a or 2, 2a) and cooperates with its outer side face with the inner side face of the preceding disc (2a or 2, 2a).
7. An apparatus according to any one or more of the preceding Claims 2 to 6, characterised in that the outermost discs (18) in each case carry spikes (19) arranged in the radial direction at their outside.
8. An apparatus according to any one or more of the preceding Claims, characterised in that disposed in the region above the last shaft downstream, which is provided with discs (2 or 2, 2'; 3 or 3, 3'), is a throw-back roll (22) which rotates counter to the direction of rotation of the last shaft (4), and that the throw-back roll comprises spikes (19) on its surface.
EP84111261A 1984-09-21 1984-09-21 Method and apparatus for the longitudinal orientation of particles Expired - Lifetime EP0175015B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE8484111261T DE3483044D1 (en) 1984-09-21 1984-09-21 METHOD FOR LENGTH ORIENTING CHIPS AND DEVICE THEREFOR.
EP84111261A EP0175015B1 (en) 1984-09-21 1984-09-21 Method and apparatus for the longitudinal orientation of particles
US06/748,844 US4666029A (en) 1984-09-21 1985-06-26 Method and apparatus for longitudinal orientation of wood chips
CA000485810A CA1232513A (en) 1984-09-21 1985-06-28 Method and apparatus for longitudinal orientation of wood chips
FI853222A FI79968C (en) 1984-09-21 1985-08-22 A method for longitudinal orientation of chips and a device for carrying out the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84111261A EP0175015B1 (en) 1984-09-21 1984-09-21 Method and apparatus for the longitudinal orientation of particles

Publications (2)

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EP0175015A1 EP0175015A1 (en) 1986-03-26
EP0175015B1 true EP0175015B1 (en) 1990-08-22

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EP84111261A Expired - Lifetime EP0175015B1 (en) 1984-09-21 1984-09-21 Method and apparatus for the longitudinal orientation of particles

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US (1) US4666029A (en)
EP (1) EP0175015B1 (en)
CA (1) CA1232513A (en)
DE (1) DE3483044D1 (en)
FI (1) FI79968C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10321116A1 (en) * 2003-05-09 2004-11-25 Dieffenbacher Gmbh + Co. Kg Device for the longitudinal orientation of elongated wood chips
EP2008783A1 (en) 2007-06-27 2008-12-31 Dieffenbacher GmbH & Co. KG Method for controlling a pressed material mat in the production of light material boards and a device for carrying out the method
DE10230606B4 (en) * 2002-07-08 2016-09-08 Dieffenbacher GmbH Maschinen- und Anlagenbau Device for the longitudinal orientation of elongated wood chips

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112554C1 (en) * 1991-04-17 1992-05-14 Kuennemeyer, Fritz
FI97112C (en) * 1992-08-17 1996-10-25 Sunds Defibrator Loviisa Oy Device for spreading fibers, especially shavings
US5325954A (en) * 1993-06-29 1994-07-05 Trus Joist Macmillan Orienter
US5443894A (en) * 1994-07-29 1995-08-22 Ucar Carbon Technology Corporation Fire retardant oriented strand board structure element
US5487460A (en) * 1994-07-29 1996-01-30 Macmillan Bloedel Limited Short strand orienter
US5404990A (en) * 1994-08-12 1995-04-11 Macmillan Bloedel Limited Vane type orienter
EP0800902B1 (en) * 1996-04-11 2002-03-06 Dieffenbacher Schenck Panel GmbH Method for continuous manufacturing of a mat for boards of wooden or like material
US5740898A (en) * 1996-10-24 1998-04-21 Macmillan Bloedel Limited Method and apparatus for laying up strands
US6241073B1 (en) 2000-02-28 2001-06-05 Cae Machinery Ltd. Wood aligning and orienting conveyor
DE10224497A1 (en) * 2002-05-31 2003-12-11 Dieffenbacher Gmbh Maschf Device for the longitudinal orientation of elongated wood chips
US6752256B2 (en) 2002-08-26 2004-06-22 Forintek Canada Corp. System for improving wood strand orientation in a wood strand orienter using rotating orienting fingers
DE10304133A1 (en) * 2003-02-03 2004-08-05 Dieffenbacher Gmbh + Co. Kg Device for orienting elongated wood chips
US7513768B2 (en) * 2003-09-18 2009-04-07 United States Gypsum Company Embedment roll device
US7445738B2 (en) * 2003-09-18 2008-11-04 United States Gypsum Company Multi-layer process and apparatus for producing high strength fiber-reinforced structural cementitious panels
US7670520B2 (en) * 2003-09-18 2010-03-02 United States Gypsum Company Multi-layer process for producing high strength fiber-reinforced structural cementitious panels with enhanced fiber content
US7754052B2 (en) * 2006-11-01 2010-07-13 United States Gypsum Company Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels
US7524386B2 (en) * 2006-11-01 2009-04-28 United States Gypsum Company Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels
US20080099133A1 (en) * 2006-11-01 2008-05-01 United States Gypsum Company Panel smoothing process and apparatus for forming a smooth continuous surface on fiber-reinforced structural cement panels
US7513963B2 (en) * 2006-11-01 2009-04-07 United States Gypsum Company Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels
FI122575B (en) * 2006-12-04 2012-03-30 Dieffenbacher Panelboard Oy Apparatus for scattering fibers such as chips
KR100868989B1 (en) * 2007-05-23 2008-11-17 엠파워(주) Method of fabricating superhydrophobic silica chain powders
DE102013226510B4 (en) * 2013-12-18 2016-10-27 Mayfair Vermögensverwaltungs Se Device and method for producing a plate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1174058B (en) 1959-09-09 1964-07-16 Abitibi Power & Paper Company Device for the production of oriented particle board containing wood particles of different dimensions
DE2535382C3 (en) * 1975-08-08 1978-10-19 G. Siempelkamp Gmbh & Co, 4150 Krefeld Spreader
DE2851779C2 (en) * 1978-11-30 1984-05-30 G. Siempelkamp Gmbh & Co, 4150 Krefeld Spreading device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10230606B4 (en) * 2002-07-08 2016-09-08 Dieffenbacher GmbH Maschinen- und Anlagenbau Device for the longitudinal orientation of elongated wood chips
DE10321116A1 (en) * 2003-05-09 2004-11-25 Dieffenbacher Gmbh + Co. Kg Device for the longitudinal orientation of elongated wood chips
DE10321116B4 (en) * 2003-05-09 2010-03-25 Dieffenbacher Gmbh + Co. Kg Device for the longitudinal orientation of elongated wood chips
EP2008783A1 (en) 2007-06-27 2008-12-31 Dieffenbacher GmbH & Co. KG Method for controlling a pressed material mat in the production of light material boards and a device for carrying out the method
DE102007029697A1 (en) 2007-06-27 2009-01-08 Dieffenbacher Gmbh + Co. Kg Method for scattering a pressed material mat in the course of the production of lightweight material panels and a device for carrying out the method

Also Published As

Publication number Publication date
FI79968B (en) 1989-12-29
FI853222L (en) 1986-03-22
DE3483044D1 (en) 1990-09-27
FI79968C (en) 1990-04-10
EP0175015A1 (en) 1986-03-26
FI853222A0 (en) 1985-08-22
CA1232513A (en) 1988-02-09
US4666029A (en) 1987-05-19

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