EP0130359A2 - Method of manufacturing cross-bars, sections, beams or the like of compressed small size vegetal parts - Google Patents

Method of manufacturing cross-bars, sections, beams or the like of compressed small size vegetal parts Download PDF

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Publication number
EP0130359A2
EP0130359A2 EP84106017A EP84106017A EP0130359A2 EP 0130359 A2 EP0130359 A2 EP 0130359A2 EP 84106017 A EP84106017 A EP 84106017A EP 84106017 A EP84106017 A EP 84106017A EP 0130359 A2 EP0130359 A2 EP 0130359A2
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European Patent Office
Prior art keywords
board
shaped strips
pressing
particles
parts
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Granted
Application number
EP84106017A
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German (de)
French (fr)
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EP0130359B1 (en
EP0130359A3 (en
Inventor
Anton Heggenstaller
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Anton Heggenstaller GmbH
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Anton Heggenstaller GmbH
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Priority to AT84106017T priority Critical patent/ATE47079T1/en
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Publication of EP0130359A3 publication Critical patent/EP0130359A3/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/28—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of materials not covered by groups E04C3/04 - E04C3/20
    • 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
    • B27N5/00—Manufacture of non-flat articles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/14—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with substantially solid, i.e. unapertured, web

Definitions

  • the invention relates to a method for producing support bars, profiles, beams or the like. From pressed small vegetable parts according to the features listed in the preamble of the main claim.
  • DE-OS 32 27 074 proposes a method for producing support bars, profiles, beams and the like, according to which the small parts mixed with binder, in particular wood chips, are filled into a cavity formed by four press rams. These rams are pressed against each other in a certain order to compress the batch, the frequency of the pressing processes being at the discretion of the person skilled in the art, depending on which product is to be produced. Post-compaction in the vertical direction appears decisive, while maintaining the pressing pressure acting on the side surfaces, only then to carry out the curing of the compact while maintaining the pressing pressure.
  • profiles for example in I-cross section, can be made from small wooden parts, the bending strength of which is at least equal to that of profiles of the same size from grown wood.
  • the object of the invention is to develop measures) which are intended to further increase the bending strength or load-bearing capacity of such profiles, irrespective of the cross section.
  • the object of the invention is achieved with the characterizing features of the main claim.
  • the basic idea of the invention is that the pressing pressure of those pressing dies which act in the main loading direction of the object to be produced is not allowed to act directly on the body to be pressed, but via board-shaped strips which, after suitable pretreatment with adhesive or similarly acting materials, are used Have the property to transmit the baling pressure on the one hand and on the other hand to be firmly connected to the mixture of small parts of vegetable type to be pressed.
  • the invention does not exclude that the board-shaped strips used according to the main claim can also be connected to the outer surfaces of the profile web according to the feature of FIG the bending stiffness.
  • the invention also goes so far as to provide the other or vice versa or both together instead of one planking.
  • the invention provides, in accordance with the feature of claim 4, to use two-layer or multilayer board-shaped strips for planking. These can be lamellae or strips that differ in terms of their wall thickness, which can also consist of different materials.
  • the invention also relates to the product that can be produced by the method, which differs from the direct product to be expected from the method in that the connecting surface between the pressed profile body consisting of small parts and the board-shaped strips is uneven, this unevenness towards Profile body can be arched protruding.
  • This uneven connecting surface has the advantage that the board-shaped strips form a positive connection with the pressed profile body made of wooden parts, not only via the introduced binder, but also via the convex connecting surface, in relation to the pressed profile body.
  • the board-shaped strips thus not only increase the load-bearing or bending strength of the manufactured profile, but also the torsional rigidity.
  • the deformation tool is formed by the press rams 10, 11, 12, 13, which are movable along the guides 14 and enclose the cavity 9 between them.
  • Fig. 2 shows that the filling material 21 is poured into the cavity 9, which preferably consists of small wooden parts mixed with binders.
  • the cavity 9 which preferably consists of small wooden parts mixed with binders.
  • other small plant parts e.g. crocheted straw and the like to use. This dosage and the gluing of these small parts is to be considered as state of the art and therefore requires no explanation.
  • the individual board-shaped strips 19, 20 can consist of two or more layers 25, 26 which have previously been glued together. With such layers 25, 26 there will of course be a slight curvature of the connecting surface 23.
  • FIG. 9 it is shown that, in addition to the press-shaped strips 19, 20, board-shaped strips 22 covering the side surface of the web 3 can also be used, which consequently are firmly connected by the side press punches 12, 13 during the pressing process according to FIG the small parts forming the web 3 are brought.
  • the Randbe rich the lateral press rams 12, 13 also so that the board-shaped strips 22 are, so to speak, embedded in the web 3 and from there the transition to the belt 2 takes place continuously.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Structural Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Forging (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Sliding-Contact Bearings (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Catalysts (AREA)

Abstract

1. Method of manufacturing compressed elements from vegetable particles, in particular wood particles, mixed with binding agents, wherein the particles are introduced into a hollow chamber formed by a plurality of press dies and the press dies successively exert a pressing force from different directions upon the introduced mass under the influence of heat, characterised in that, for the production of support crossbars, profiles, beams or similar compressed elements, at least one, preferably two opposing board-like strips of pressure transmitting material, e.g. natural wood, fibre-reinforced plastic layers or the like provided with an adhesive and/or synthetic resin coating are inserted in the hollow chamber and confine the particles between them, whereupon firstly the press dies associated with the belt region exert a pressing power by way of the board-like strips upon the particles and then the press dies associated with the side surfaces are moved toward one another into pressing position, and that finally follow-up pressing of the belt regions of the compressed element is effected by maintaining the pressing power acting upon the side surfaces before the compressed element is hardened by the action of heat and maintenance of the pressing power.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Tragriegeln, Profilen, Balken oder dgl. aus gepreßten pflanzlichen Kleinteilen entsprechend den im Oberbegriff des Hauptanspruches aufgeführten Merkmalen.The invention relates to a method for producing support bars, profiles, beams or the like. From pressed small vegetable parts according to the features listed in the preamble of the main claim.

Mit der DE-OS 32 27 074 wird ein Verfahren zur Herstellung von Tragriegeln, Profilen, Balken und dgl. vorgeschlagen, wonach die mit Bindemittel versetzten Kleinteile, insbesondere Holzspäne, in einen von vier Preßstempeln gebildeten Hohlraum eingefüllt werden. Diese Preßstempel werden in einer bestimmten Reihenfolge gegeneinander zum Verdichten des Gemenges in Preßstellung gebracht, wobei die Häufigkeit der Preßvorgänge in das Ermessen des Fachmannes gestellt ist, je nachdem, welches Erzeugnis hergestellt werden soll. Entscheidend erscheint eine Nachverdichtung in vertikaler Richtung unter Aufrechterhaltung des auf die Seitenflächen einwirkenden Preßdruckes, um erst daraufhin die Aushärtung des Preßlinges unter Aufrechterhaltung des Preßdruckes durchzuführen.DE-OS 32 27 074 proposes a method for producing support bars, profiles, beams and the like, according to which the small parts mixed with binder, in particular wood chips, are filled into a cavity formed by four press rams. These rams are pressed against each other in a certain order to compress the batch, the frequency of the pressing processes being at the discretion of the person skilled in the art, depending on which product is to be produced. Post-compaction in the vertical direction appears decisive, while maintaining the pressing pressure acting on the side surfaces, only then to carry out the curing of the compact while maintaining the pressing pressure.

Mit diesem Verfahren können Profile, beispielsweise im I-Querschnitt, aus Holzkleinteilen hergestellt werden, deren Biegefestigkeit gegenüber gleichgroßen Profilen aus gewachsenem Holz mindestens ebenbürtig sind.With this method profiles, for example in I-cross section, can be made from small wooden parts, the bending strength of which is at least equal to that of profiles of the same size from grown wood.

Der Erfindung liegt die Aufgabe zugrunde, Maßnahmen zu entwickeln, )welche die Biegefestigkeit bzw. Tragkraft solcher Profile, gleichgültig welchen Querschnitt sie haben, noch weiter steigern sollen. Ausgehend von der DE-OS 32 27 074 wird die gestellte Aufgabe der Erfindung mit den kennzeichnenden Merkmalen des Hauptanspruches gelöst.The object of the invention is to develop measures) which are intended to further increase the bending strength or load-bearing capacity of such profiles, irrespective of the cross section. Starting from DE-OS 32 27 074, the object of the invention is achieved with the characterizing features of the main claim.

Der Grundgedanke der Erfindung besteht darin, daß man den Preßdruck derjenigen Preßstempel, die in der Hauptbelastungsrichtung des zu erzeugenden Gegenstandes wirken, nicht unmittelbar auf den zu pressenden Körper einwirken läßt, sondern über brettförmige Streifen, die nach geeigneter Vorbehandlung mit Klebstoff oder ähnlich wirkenden Materialien die Eigenschaft haben, einerseits den Preßdruck zu übertragen und andererseits sich fest mit dem zu verpressenden Gemisch aus Kleinteilen pflanzlicher Art zu verbinden.The basic idea of the invention is that the pressing pressure of those pressing dies which act in the main loading direction of the object to be produced is not allowed to act directly on the body to be pressed, but via board-shaped strips which, after suitable pretreatment with adhesive or similarly acting materials, are used Have the property to transmit the baling pressure on the one hand and on the other hand to be firmly connected to the mixture of small parts of vegetable type to be pressed.

Die günstigste Reihenfolge für die erfindungsgemäße Preßtechnik ergibt sich aus den Merkmalen des Anspruches 2.The most favorable sequence for the press technology according to the invention results from the features of claim 2.

Darüber hinaus schließt aber die Erfindung nicht aus, daß die nach dem Hauptanspruch eingesetzten brettförmigen Streifen entsprechend dem Merkmal der Figur 3 auch mit den Außenflächen des Profilsteges verbunden werden können, um beispielsweise durch diese Art der Verbindung die Knicksteifigkeit des zu erzeugenden Profiles, damit aber auch die Biegesteifigkeit, zu erhöhen. Die Erfindung geht auch so weit, anstelle der einen Beplankung auch die andere oder umgekehrt bzw. beide gemeinsam vorzusehen.In addition, however, the invention does not exclude that the board-shaped strips used according to the main claim can also be connected to the outer surfaces of the profile web according to the feature of FIG the bending stiffness. The invention also goes so far as to provide the other or vice versa or both together instead of one planking.

Schließlich sieht die Erfindung vor, entsprechend dem Merkmal des Anspruches 4 zwei- oder mehrschichtige brettförmige Streifen zur Beplankung zu verwenden. Es kann sich hierbei um Lamellen oder hinsichtlich ihrer Wandstärke unterschiedliche Streifen handeln, die durchaus auch aus unterschiedlichen Material/bestehen können. Gegenstand der Erfindung ist außerdem das durch das Verfahren herstellbare Erzeugnis, welches sich gegenüber dem vom Verfahren zu erwartenden unmittelbaren Erzeugnis dadurch unterscheidet, daß die Verbindungsfläche zwischen dem gepreßten, aus Kleinteilen bestehenden Profilkörper und den brettförmigen Streifen uneben ausgebildet ist, wobei diese Unebenheit in Richtung zum Profilkörper vorspringend gewölbt sein kann.Finally, the invention provides, in accordance with the feature of claim 4, to use two-layer or multilayer board-shaped strips for planking. These can be lamellae or strips that differ in terms of their wall thickness, which can also consist of different materials. The invention also relates to the product that can be produced by the method, which differs from the direct product to be expected from the method in that the connecting surface between the pressed profile body consisting of small parts and the board-shaped strips is uneven, this unevenness towards Profile body can be arched protruding.

Wenn man nämlich beispielsweise Naturholzbretter zur Beplankung vorsieht, dann ist verständlich, daß diese Naturholzbretter unter dem Preßdruck der auf sie einwirkenden Preßstempel sich selbst verformen. Uberraschenderweise geschieht dies in der Richtung, daß die Bretter in ihrem Randbereich sich verdichten, sich aber im Mittelbereich eher hinsichtlich ihrer Wandstärke vergrößern. Dadurch ergibt sich bei ebener Außenfläche eine konvex zum Preßkörper sich erstreckende Verbindungsfläche.If, for example, natural wood boards are provided for planking, it is understandable that these natural wood boards deform themselves under the pressure of the press rams acting on them. Surprisingly, this happens in such a way that the boards thicken in their edge area, but rather increase in wall thickness in the middle area. This results in a connecting surface which extends convexly to the pressing body in the case of a flat outer surface.

Diese unebene Verbindungsfläche hat den Vorteil, daß die brettförmigen Streifen gegenüber dem gepreßten Profilkörper aus Kleinteilen nicht nur über das eingebrachte Bindemittel,sondern auch über die konvexe Verbindungsfläche eine formschlüssige Verbindung mit dem aus Holzteilen bestehenden gepreßten Profilkörper eingehen. Die brettförmigen Streifen erhöhen damit nicht nur die Trag- bzw. Biegefestigkeit des hergestellten Profiles,sondern auch die Verwindungssteifigkeit.This uneven connecting surface has the advantage that the board-shaped strips form a positive connection with the pressed profile body made of wooden parts, not only via the introduced binder, but also via the convex connecting surface, in relation to the pressed profile body. The board-shaped strips thus not only increase the load-bearing or bending strength of the manufactured profile, but also the torsional rigidity.

Einzelheiten der Erfindung sind in der Zeichnung schematisch und beispielsweise dargestellt. Es zeigen:

  • Fig. 1 bis 6: Vertikalschnitte durch ein Preßwerkzeug in verschiedenen Arbeitsstufen,
  • Fig. 7: einen Vertikalschnitt durch ein im Gurtbereich beplanktes Profil,
  • Fig. 8: einen Querschnitt durch ein Profil mit aus mehreren Schichten bestehenden brettförmigen Streifen und
  • Fig. 9: einen Vertikalschnitt durch ein im Gurt- und Stegbereich beplanktes Profil.
Details of the invention are shown schematically and for example in the drawing. Show it:
  • 1 to 6: vertical sections through a press tool in different working stages,
  • 7: a vertical section through a profile planked in the belt area,
  • 8 shows a cross section through a profile with board-shaped strips consisting of several layers and
  • 9: a vertical section through a profile planked in the belt and web area.

Mit dem in den Figuren 1 bis 6 dargestellten Preßwerkzeug sollen Tragriegel, Profile, Balken 1 und dgl. gem. Fig. 7, 8 und 9 hergestellt werden, die im wesentlichen einen Steg 3 und damit verbundene Gurte 2 aufweisen.With the pressing tool shown in Figures 1 to 6 support beams, profiles, beams 1 and the like. 7, 8 and 9 are produced, which essentially have a web 3 and associated belts 2.

Das Verformungswerkzeug wird durch die Preßstempel 10, 11, 12, 13 gebildet, die entlang der Führungen 14 bewegbar sind und zwischen sich den Hohlraum 9 einschließen.The deformation tool is formed by the press rams 10, 11, 12, 13, which are movable along the guides 14 and enclose the cavity 9 between them.

Im Ausführungsbeispiel sind folgende Verfahrensschritte vorgesehen:

  • Bei der Stellung nach Fig. 1 befinden sich die seitlichen Preßstempel 12, 13 in zurückgefahrener Position. Der obere Preßstempel 10 (vgl. Figur 3) ist so weit zurückgezogen, daß das Füllgut 21 (vgl. Figur 3) in den Hohlraum 9 eingeschüttet werden kann. Der untere Preßstempel 11 befindet sich ebenfalls in zurückgezogener Position. Auf dessen Oberfläche wird ein brettförmiger Streifen 19 aufgelegt, welcher der Länge und der Breite des Hohlraumes 9 entspricht und mit dem Preßstempel 11 bewegt werden kann. Dieser brettförmige Streifen 19 kann aus verschiedenen Materialien, z.B. aus druckübertragungsfähigem Material wie Naturholz, faserverstärkte Kunststoffschicht und dgl. bestehen. Dieser Streifen 19 ist außerdem innenseitig, d.h. an der dem Hohlraum 9 zugekehrten Seite mit einer Be- schichtung aus Leim und/oder Kunstharz versehen. Es hat sich als zweckmäßig erwiesen, Naturholzbretter für solche Streifen 19 zu verwenden. Wesentlich ist, daß die Festigkeit dieser Streifen 19 so groß sein muß, daß sie den Preßdruck des Preßstempels 11 übertragen können, ohne selbst über ein bestimmtes Maß hinaus deformiert zu werden.
The following method steps are provided in the exemplary embodiment:
  • In the position according to FIG. 1, the lateral press rams 12, 13 are in the retracted position. The upper press ram 10 (see FIG. 3) is withdrawn so far that the filling material 21 (see FIG. 3) can be poured into the cavity 9. The lower ram 11 is also in the retracted position. A board-shaped strip 19 is placed on its surface, which corresponds to the length and width of the cavity 9 and can be moved with the press ram 11. This board-shaped strip 19 can consist of various materials, for example of a material capable of transmitting pressure, such as natural wood, fiber-reinforced plastic layer and the like. This strip 19 is also on the inside, ie at the cavity 9 facing side with a Be - coating of glue and / or resin is provided. It turned out to be Proven to use natural wood boards for such strips 19. It is essential that the strength of these strips 19 must be so great that they can transmit the pressure of the ram 11 without being deformed beyond a certain amount.

In der Stellung gem. Fig. 2 ist gezeigt, daß in den Hohlraum 9 das Füllgut 21 geschüttet ist, welches bevorzugt aus mit Bindemitteln vermischten Holzkleinteilen besteht. Es ist aber auch möglich, andere pflanzliche Kleinteile, wie z.B. gehäxeltes Stroh und dgl, zu verwenden. Diese Dosierung und die Beleimung dieser Kleinteile ist dem Stand der Technik zuzurechnen und bedarf daher keiner Erläuterung.In the position acc. Fig. 2 shows that the filling material 21 is poured into the cavity 9, which preferably consists of small wooden parts mixed with binders. However, it is also possible to use other small plant parts, e.g. crocheted straw and the like to use. This dosage and the gluing of these small parts is to be considered as state of the art and therefore requires no explanation.

Gemäß der Stellung in Figur 3 ist auf das Füllgut 21 ein weiterer brettförmiger Streifen 20 aufgelegt worden, gegen den der obere Preßstempel 10 einwirkt. Beide Preßstempel 10, 11 werden nun in vertikaler Richtung zur Vorverdichtung des Füllgutes 21 so weit bewegt, bis die in Figur 4 gezeigte Stellung erreicht ist. Der Druck der Preßstempel 10, 11 ist dabei über die brettförmigen Streifen 19, 20 auf das Füllgut 21 übertragen worden. Bei der in Figur 4 gezeigten Stellung können nun die Preßstempel 10, 11 gelüftet werden, bevor die seitlichen Preßstempel 12, 13 gegeneinander bewegt werden und dabei den Steg 3 des Profiles 1 (vgl. Fig. 7) bilden. Diese seitlichen Preßstempel 12, 13 verbleiben in der in Figur 5 gezeigten Preßendlage, wenn gemäß Figur 6 die anderen Preßstempel 10, 11 zur Nachverdichtung nochmals gegeneinander bewegt werden und die in Figur 6 gezeigte Endlage erreichen.According to the position in FIG. 3, a further board-shaped strip 20 has been placed on the filling material 21, against which the upper press ram 10 acts. Both press rams 10, 11 are now moved in the vertical direction for pre-compressing the filling material 21 until the position shown in FIG. 4 is reached. The pressure of the press rams 10, 11 has been transferred to the filling material 21 via the board-shaped strips 19, 20. In the position shown in Figure 4, the ram 10, 11 can now be released before the lateral ram 12, 13 are moved against each other and thereby form the web 3 of the profile 1 (see. Fig. 7). These lateral press rams 12, 13 remain in the press end position shown in FIG. 5 if, according to FIG. 6, the other press rams 10, 11 are again moved towards one another for further compression and reach the end position shown in FIG. 6.

Die geschilderten Preßbewegungen können wiederholt werden. Auch wird sich eine Struktur der Kleinteile in den Gurt- und Stegbereichen im Sinne der Lehre der eingangs erwähnten Druckschrift ergebenoThe press movements described can be repeated. There will also be a structure of the small parts in the belt and web areas in the sense of the teaching of the document mentioned above

Wenn man beispielsweise von Holzbrettern für die brettförmigen Streifen 19, 20 ausgeht, wird sich im fertiggepreßten Zustand eine unebene Verbindungsfläche 23 zwischen den Streifen 19, 20 einerseits und dem Profilkörper 24 aus den gepreßten Kleinteilen ergeben. Diese unebene Verbindungsfläche 23 entsteht speziell im letzten Nachpreßvorgang gemäß Figur 6, indem das Naturholz unter dem hohen Preßdruck aufgrund der gegebenen Widerstände der Führungen 14 und der seitlichen Preßstempel 12, 13 im mittleren Bereich den Preßdruck unter gleichzeitiger Verformung überträgt, wohingegen die brettförmigen Streifen 19,20 im Randbereich eher eine Quetschung erfahren. Das Schnittbild des so hergestellten Verbundprofiles zeigt außenseitig glatte brettförmige Streifen 19, 20, die aber innenseitig entsprechend der Struktur der Streifen in Richtung zum Profilkörper 24 mehr oder weniger gewölbt sind. Diese Wölbung hat zur Folge, daß die brettförmigen Streifen 19, 20 nicht nur eine erhebliche Erhöhung der Biegesteifigkeit der Profile, sondern auch der Verwindungssteifigkeit bedingen, weil Formschlußverbindung zufolge der Wölbung gegeben ist.If, for example, wooden boards for the board-shaped strips 19, 20 are assumed, an uneven connecting surface 23 between the strips 19, 20 on the one hand and the profile body 24 will result from the pressed small parts in the finished pressed state. This uneven connecting surface 23 is created especially in the last repressing process according to FIG. 6, in that the natural wood under the high pressing pressure, due to the given resistances of the guides 14 and the lateral pressing dies 12, 13, transfers the pressing pressure with simultaneous deformation in the central region, whereas the board-shaped strips 19, 20 more likely to experience a bruise in the edge area The sectional view of the composite profile thus produced shows on the outside smooth board-shaped strips 19, 20 which, however, are more or less curved on the inside in accordance with the structure of the strips in the direction of the profile body 24. The result of this curvature is that the board-shaped strips 19, 20 not only require a considerable increase in the bending stiffness of the profiles, but also the torsional stiffness, because there is a positive connection due to the curvature.

Im Beispiel der Figur 8 ist gezeigt, daß die einzelnen brettförmigen Streifen 19, 20 aus zwei oder mehr Schichten 25, 26 bestehen können, die vorher miteinander verleimt worden sind. Bei solchen Schichten 25, 26 wird sich natürlich eine geringfügigere Wölbung der Verbindungsfläche 23 ergeben.In the example in FIG. 8 it is shown that the individual board-shaped strips 19, 20 can consist of two or more layers 25, 26 which have previously been glued together. With such layers 25, 26 there will of course be a slight curvature of the connecting surface 23.

Im Beispiel der Figur 9 ist gezeigt, daß außer den preßförmigen Streifen 19, 20 auch noch die Seitenfläche des Steges 3 überdeckende brettförmige Streifen 22 verwendet werden können, die folglich durch die seitlichen Preßstempel 12, 13 beim Preßvorgang gemäß Figur 5 in eine feste Verbindung mit den den Steg 3 bildenden Kleinteilen gebracht werden. Hierbei ist es dem Fachmann überlassen, die Randbereiche der seitlichen Preßstempel 12, 13 auch so auszubilden, daß die brettförmigen Streifen 22 gewissermaßen in den Steg 3 eingebettet sind und von dort der Übergang zum Gurt 2 stufenlos erfolgt.In the example of FIG. 9 it is shown that, in addition to the press-shaped strips 19, 20, board-shaped strips 22 covering the side surface of the web 3 can also be used, which consequently are firmly connected by the side press punches 12, 13 during the pressing process according to FIG the small parts forming the web 3 are brought. Here it is up to the expert, the Randbe rich the lateral press rams 12, 13 also so that the board-shaped strips 22 are, so to speak, embedded in the web 3 and from there the transition to the belt 2 takes place continuously.

Es liegt auf der Hand, daß nach dem erfindungsgemäßen Verfahren auch Profile anderen Querschnittes, z.B. U-Z-L-Profile, hergestellt werden können, so daß sich die Erfindung nicht auf die Darstellung der Ausführungsbeispiele beschränkt.It is obvious that profiles of other cross-sections, e.g. U-Z-L profiles can be produced, so that the invention is not limited to the representation of the exemplary embodiments.

Stücklisteparts list

  • 1 Tragriegel, Profil, Balken und dgl.1 support bar, profile, beams and the like
  • 2 Gurt2 belt
  • 3 Steg3 bridge
  • 4 - 4 -
  • 5 - 5 -
  • 6 - 6 -
  • 7 - 7 -
  • 8 - 8th -
  • 9 Hohlraum9 cavity
  • 10 Preßstempel10 stamps
  • 11 Preßstempel11 ram
  • 12 Preßstempel12 stamps
  • 13 Preßstempel13 press ram
  • 14 Führung14 leadership
  • 15 - 15 -
  • 16 - 16 -
  • 17 - 17 -
  • 18 - 18 -
  • 19 brettförmiger Streifen19 board-shaped strips
  • 20 brettförmiger Streifen20 board-shaped strips
  • 21 Füllgut21 filling material
  • 22 brettförmiger Streifen22 board-shaped strips
  • 23 Verbindungsfläche23 connecting surface
  • 24 Profilkörper24 profile body
  • 25 Schicht25 layer
  • 26 Schicht26 layer

Claims (6)

1) Verfahren zur Herstellung von Tragriegeln, Profilen, Balken und dgl. aus gepreßten, mit Bindemitteln vermischten pflanzlichen Kleinteilen, insbesondere Holzkleinteilen, mit einem zur Anwendung als biegesteifer Balken geeigneten Querschnitt, beispielsweise in Form eines I-Profiles, bei dem die Kleinteile in einen von mehreren Preßstempeln gebildeten HoMraum eingefüllt werden, worauf zunächst die dem Gurtbereich zugeordneten Preßstempel und danach die den Seitenflächen zugeordneten Preßstempel gegeneinander zum Verdichten des Gemenges, ggf. wiederholt, in Preßstellung gebracht werden, und daß daraufhin eine Nachpressung der Gurtbereiche unter Aufrechterhaltung des auf die Seitenflächen einwirkenden Preßdruckes erfolgt, bevor der Preßling unter Warmeeinwirkung und Aufrechterhaltung des Preßdruckes ausgehärtet wird, dadurch gekennzeichnet, daß in den Hohlraum zwischen die Preßstempel mindestens eine, vorzugsweise zwei einander gegenüberliegende, brettförmige Streifen aus druckübertragungsfähigem Material, z.B. Naturholz, faserverstärkten Kunststoffschichten oder dgl. mit einer Leim- und/oder Kunstharzbeschichtung versehen eingelegt werden, welche die Kleinteile zwischen sich begrenzen, und daß der Preßdruck über dieses Schichten auf die Kleinteile ausgeübt wird.1) Process for the production of support bars, profiles, beams and the like. From pressed, mixed with binders small plant parts, in particular small wooden parts, with a cross-section suitable for use as a rigid beam, for example in the form of an I-profile, in which the small parts in one HoMraum formed by several plungers are filled, whereupon first the plungers assigned to the belt area and then the plungers assigned to the side surfaces are pressed against one another to compact the batch, if necessary repeatedly, and then a repressing of the belt areas while maintaining the side surfaces acting pressure takes place before the compact is cured under the action of heat and maintaining the pressure, characterized in that in the cavity between the ram at least one, preferably two opposite, board-shaped strips of pressure transfer material, e.g. Natural wood, fiber-reinforced plastic layers or the like. Provided with a glue and / or synthetic resin coating, which limit the small parts between them, and that the pressing pressure is exerted on the small parts via these layers. 2) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zunächst ein brettförmiger Streifen auf den die Bodenfläche des Hohlraumes bildenden Preßstempel aufgelegt, danach der Hohlraum mit den Kleinteilen gefüllt und schließlich der zweite brettförmige Streifen auf die Füllung aufgesetzt wird.2) Method according to claim 1, characterized in that first a board-shaped strip placed on the die forming the bottom surface of the cavity, then the cavity filled with the small parts and finally the second board shaped strips are placed on the filling. 3) Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichn e t, daß auch die Außenflächen des Profilsteges mit brettförmigen Streifen beplankt werden.3) Method according to claim 1 or 2, characterized in that the outer surfaces of the profile web are covered with board-shaped strips. 4) Verfahren nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß zwei oder mehrschichtige brettförmige Streifen zur Beplankung verwendet werden.4) Method according to claim 1 or one of the following, characterized in that two or multilayer board-shaped strips are used for planking. 5) Nach dem Verfahren gemäß Anspruch 1 oder 2 hergestellter biegesteifer Balken, dadurch gekennzeichnet, daß die Verbindungsfläche zwischen den gepreßten, aus Kleinteilen bestehenden Profilkörper und den brettförmigen Streifen uneben ausgebildet ist.5) According to the method of claim 1 or 2 produced rigid beam, characterized in that the connecting surface between the pressed, made of small parts profile body and the board-shaped strips is uneven. 6)Balken nach Anspruch 5, dadurch gekennzeichnet, daß die Verbindungsfläche in Richtung zum Profilkörper vorspringend gewölbt ausgebildet ist.6) Beam according to claim 5, characterized in that the connecting surface is designed to protrude in the direction of the profile body.
EP84106017A 1983-06-13 1984-05-26 Method of manufacturing cross-bars, sections, beams or the like of compressed small size vegetal parts Expired EP0130359B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106017T ATE47079T1 (en) 1983-06-13 1984-05-26 PROCESS FOR MANUFACTURING SUPPORTING BARS, PROFILES, BEAM AND THE LIKE. MADE FROM SMALL PRESSED VEGETABLE PARTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321307A DE3321307C2 (en) 1983-06-13 1983-06-13 Process for the production of support bars, profile bars, beams and the like from small pressed plant parts
DE3321307 1983-06-13

Publications (3)

Publication Number Publication Date
EP0130359A2 true EP0130359A2 (en) 1985-01-09
EP0130359A3 EP0130359A3 (en) 1986-08-13
EP0130359B1 EP0130359B1 (en) 1989-10-11

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EP84106017A Expired EP0130359B1 (en) 1983-06-13 1984-05-26 Method of manufacturing cross-bars, sections, beams or the like of compressed small size vegetal parts

Country Status (6)

Country Link
EP (1) EP0130359B1 (en)
AT (1) ATE47079T1 (en)
DE (2) DE3321307C2 (en)
ES (1) ES8506510A1 (en)
IL (1) IL72044A (en)
NO (1) NO158173C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010074639A1 (en) * 2008-12-23 2010-07-01 Newbeam Sweden Ab Press and method for forming beams having at least one substantially u-shaped cross-sectional portion from glue-coated wood chips

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307557A1 (en) * 1983-03-03 1984-09-06 Heggenstaller, Anton, 8892 Kühbach METHOD AND DEVICE FOR FORMING PROFILES, CONSTANT CROSS-SECTIONS FROM VEGETABLE SMALL PARTS
DE3916774A1 (en) * 1989-05-23 1990-11-29 Anton Heggenstaller METHOD AND DEVICE FOR PRESSING A RIGID BEAM-SHAPED SHAPED BODY FROM VEGETABLE SMALL PARTS
DE8914649U1 (en) * 1989-12-13 1991-04-11 Anton Heggenstaller AG, 86556 Kühbach Profile made of molded plant parts
DE3941170A1 (en) * 1989-12-13 1991-06-20 Heggenstaller Anton Gmbh METHOD AND DEVICE FOR PRESSING MOLDED BODIES FROM VEGETABLE SMALL PARTS
DE4301153C1 (en) * 1993-01-18 1994-02-10 Karl Moser Extruded beam of bonded wood particles - contains one-piece core with greater resistance to bending and tension loads inside lengthwise passage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825674A (en) * 1953-04-02 1958-03-04 Prase Werner Method of producing boards of pressed composition material
DE1282297B (en) * 1963-02-01 1968-11-07 Weyerhaeuser Co Process for producing a molded part from molding compound
US3933968A (en) * 1968-01-29 1976-01-20 Pierre Sorbier Method of moulding articles from a paste like material
DE2554212A1 (en) * 1974-12-02 1976-08-12 Robert Dudley Flanders REINFORCED MOLDED PARTS MADE OF LIGNOCELLULOSE AND THE PROCESS FOR THEIR PRODUCTION
US4131705A (en) * 1977-09-06 1978-12-26 International Telephone And Telegraph Corporation Structural laminate
US4213928A (en) * 1978-06-19 1980-07-22 Kockums Industri Ab Method of making structural chipboard wood beam

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823053C2 (en) * 1978-05-26 1983-07-14 Anton 8892 Kühbach Heggenstaller Load-bearing component
DE2948082A1 (en) * 1979-11-29 1981-06-04 Anton 8891 Unterbernbach Heggenstaller Extruded chipboard beam - pressed without slider is turned over for optimum strength properties
DE3035701C2 (en) * 1980-09-22 1982-12-23 Anton 8892 Kühbach Heggenstaller Pallet base and process for its manufacture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825674A (en) * 1953-04-02 1958-03-04 Prase Werner Method of producing boards of pressed composition material
DE1282297B (en) * 1963-02-01 1968-11-07 Weyerhaeuser Co Process for producing a molded part from molding compound
US3933968A (en) * 1968-01-29 1976-01-20 Pierre Sorbier Method of moulding articles from a paste like material
DE2554212A1 (en) * 1974-12-02 1976-08-12 Robert Dudley Flanders REINFORCED MOLDED PARTS MADE OF LIGNOCELLULOSE AND THE PROCESS FOR THEIR PRODUCTION
US4131705A (en) * 1977-09-06 1978-12-26 International Telephone And Telegraph Corporation Structural laminate
US4213928A (en) * 1978-06-19 1980-07-22 Kockums Industri Ab Method of making structural chipboard wood beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010074639A1 (en) * 2008-12-23 2010-07-01 Newbeam Sweden Ab Press and method for forming beams having at least one substantially u-shaped cross-sectional portion from glue-coated wood chips
US8440032B2 (en) 2008-12-23 2013-05-14 Newbeam Sweden Ab Press and method for forming beams having at least one substantially U-shaped cross-sectional portion from glue-coated wood chips

Also Published As

Publication number Publication date
ES533327A0 (en) 1985-08-01
ATE47079T1 (en) 1989-10-15
DE3480064D1 (en) 1989-11-16
NO158173B (en) 1988-04-18
IL72044A0 (en) 1984-10-31
DE3321307C2 (en) 1986-06-19
IL72044A (en) 1989-03-31
NO842343L (en) 1984-12-14
NO158173C (en) 1988-07-27
EP0130359B1 (en) 1989-10-11
EP0130359A3 (en) 1986-08-13
DE3321307A1 (en) 1984-12-13
ES8506510A1 (en) 1985-08-01

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