EP0400359B1 - Procédé et dispositif pour fabriquer une nappe cohérente de fibres longues, par la suite pressée pour former un bloc ou un objet similaire - Google Patents

Procédé et dispositif pour fabriquer une nappe cohérente de fibres longues, par la suite pressée pour former un bloc ou un objet similaire Download PDF

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Publication number
EP0400359B1
EP0400359B1 EP90108621A EP90108621A EP0400359B1 EP 0400359 B1 EP0400359 B1 EP 0400359B1 EP 90108621 A EP90108621 A EP 90108621A EP 90108621 A EP90108621 A EP 90108621A EP 0400359 B1 EP0400359 B1 EP 0400359B1
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EP
European Patent Office
Prior art keywords
slabs
sticks
breaking
process according
strand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90108621A
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German (de)
English (en)
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EP0400359A2 (fr
EP0400359A3 (fr
Inventor
Gerd Schäfer
Karl Schäfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inter Wood Maschinen GmbH and Co KG
Original Assignee
Inter Wood Maschinen GmbH and Co KG
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Publication date
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Publication of EP0400359A3 publication Critical patent/EP0400359A3/fr
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Classifications

    • 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
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/08—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood fibres, e.g. produced by tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1067—Continuous longitudinal slitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/13—Severing followed by associating with part from same source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0267—Splitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0267—Splitting
    • Y10T83/0274—By use of endless band or chain knife
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0267—Splitting
    • Y10T83/0296—With infeeding of work

Definitions

  • the invention relates to a method and an apparatus for producing a coherent nonwoven from long splinters, which are produced by disassembling the supplied starting material and then compressed to form a nonwoven, which is subsequently glued and together with other nonwovens into blocks or the like. is pressed.
  • a corresponding method and devices for carrying out the method can be found, for example, in DE-OS 27 16 748.
  • the aim here is to create a compressed wood product which, in contrast to conventional chipboard, is composed of elongated chips, which are arranged largely parallel to each other. Natural wood is used as the starting material, which is impacted by squeeze rollers in such a way that the wood is broken down parallel to the fibers to form a still-connected nonwoven. To support this crushing resolution, longitudinal notches or the like can be inserted into the natural wood from above. be introduced.
  • the invention has for its object to develop an improved method and an improved device for producing the nonwovens described above.
  • the energy-consuming squeezing process is replaced by a fiber-parallel splitting process.
  • the fiber composite is not only loosened according to the invention to a mat in which the fiber sections are still firmly connected, but the stacked starting material is split into individual, that is to say completely separate, longitudinal splinters, the cross sections of which are preferably on average 100 mm2, but maximum Should be 200 mm2.
  • cutting movements should be carried out in connection with the preferably continuous feed of the parcel strand in such a way that a splitting process results in the wood material, that is to say an air gap precedes the knife edge in the wood.
  • the splinters or rinds can be combined into individual bundles in the sawmill and separated from these bundles to form the endless bundle of packages. It is useful if the package strand is at a height is equalized, which is considerably smaller than the diameter of a collar.
  • the splinters or rinds are acted upon from above with their compressive forces in order to compress the starting material, which is stacked on top of one another, during its longitudinal decomposition. Due to the longitudinal division of the splitters or rinds as a result of the repeated longitudinal splitting, internal tensions in the wood are released and lead to a fabric-like mat formed from loose longitudinal fragments lying next to or on top of one another. This mat-like structure is then compressed into a fleece by the tamping provided according to the invention. The pressure of the tamper can be adjusted so that the fiber composite can be loosened in a preselectable manner, which cannot be achieved with squeeze rollers.
  • the long splinters are guided on paths crossing at an acute angle. This further supports the spreading effect which already results from the longitudinal splitting, in which the longitudinal splinters formed from a splitter are slightly deflected from the original conveying direction on both sides by the splitting knife, which divides them lengthwise, so that subsequently there is a different direction course.
  • a particular advantage of the method according to the invention is that it does not process logs, but chisels and possibly rinds, which can normally be stacked on top of each other in several layers. In this case, raw material of any length can be used, while cut logs are required in the prior art. It is also advantageous that the process according to the invention can be used with controllable feed and cutting forces. According to the invention, the connection of the individual longitudinal splinters produced beforehand to form a transportable, continuous fleece takes place exclusively by pressurization. Any bark is separated or crumbled during the longitudinal cutting of the splinters or rinds and can therefore be easily removed.
  • the splitters or rinds are combined in bundles before they are processed, it is advantageous if the bundle of strands is then leveled to a height that is considerably smaller than the diameter of a bundle.
  • the oscillation of the cutting movements for producing the long splinters can be up to 80 Hz.
  • the tamping acting on the long splinters or the braid to compress them from above exerts a sudden, sudden, high force effect, with a stored energy being converted in the range of milliseconds without large kinetic energies being developed have to.
  • the fleece pressed in this way can then be subjected to thickness equalization.
  • the parcel strand or the braid can be fed continuously at the same speed.
  • guide elements for deflecting the longitudinally split splinters or rinds or elongated splinters are arranged within the dismantling device over their increasing conveying width in such a way that guide paths intersecting at an acute angle are formed for them.
  • a metering device can be connected upstream of the parcel strand conveyor to separate the splitters or rinds from bundles supplied.
  • the pressure device upstream of the disassembly device can preferably pressure rollers and / or pressure balls have, which can be actuated via interconnected hydraulic cylinders, the pressure rollers are preferably floating. This results in an optimal adaptation of the printing device to the surface contour of the package strand.
  • the pressure device upstream of the disassembly device can have pressers with guide webs.
  • the distance between the cutting edges of two splitting knives arranged in a row next to one another is smaller than between the rear knife edges.
  • the pressure devices provided in the disassembly device can also comprise floating, freely rotating pressure rollers. So that the vertically arranged splitting knives do not pull up the respectively applied splinters or rinds during their stroke movement, it can be expedient if the splitting knives are arranged inclined against the conveying direction and thereby enclose an acute angle with the latter.
  • the compression device downstream of the disassembly device can be composed of several force units, which convert the energy stored in them in a rapid cycle in the range of milliseconds. It is expedient if force units such as those used in German are used both for the oscillating drive of the splitting knife and for the drive of the compression device Patent specification 26 00 948 are described.
  • FIG. 1 begins with a conveyor 1 for an endless parcel strand 2 consisting of longitudinally aligned splitters or rinds. Above the conveyor 1 there is a pressure device 3 which extends across the conveying width and acts vertically downwards and which forms the top of the parcel strand 2 acted upon and rolls on this.
  • Figure 3 shows a presser 4 of this printing device 3, the pressure rollers 5 and / or pressure balls and guide webs 6 for better parallel guidance of the splinter 7 or rinds.
  • a disassembly device 8 Downstream of the printing device 3 is a disassembly device 8, which has a plurality of rows of knives 10 which are aligned transversely to the conveying direction 9 and which are arranged one behind the other and offset from one another, each of which is composed of a plurality of splitting knives 11 arranged next to one another at a small spacing with the bundle strand 2 of opposing vertical cutting edges 12.
  • the splitting knives 11 are guided such that they can be moved vertically and are subject to an oscillating drive 13.
  • At least the splitting knives 11 of a row of knives 10 are arranged in a common gate 14 (see FIG. 5) which is acted upon by the oscillating drive 13 (not shown in more detail).
  • the conveyor that transports the parcel strand 2 through the dismantling device 8 is formed by driven chains 15, which are passed between the splitting knives 11 and are arranged in an interleaved manner.
  • pressing devices 16 are arranged between the individual rows of knives 10, which in turn may have pressure rollers and / or pressure balls and firmly compress the package strand 2 from above on the way through the disassembling device 8.
  • the disassembly device 8 is followed by a compression device 17, in which the previously split long splinters are compressed into a fleece 18.
  • the disassembly device 8 is followed by a plate belt 19 as a conveyor for the fleece 18.
  • a leveling roller 20 is arranged downstream of the compacting device 17.
  • FIG. 2 shows the area of the dismantling device 8, the pressing devices 16 provided between the rows of knives 10 not being shown for reasons of better clarity.
  • the package strand 2 increases in height and in width.
  • the dismantling device 8 is preceded by a leveling roller 21 and the compression device 17 composed of several force units 17a is connected downstream.
  • Guide elements 22 for deflecting the longitudinally split splinters or rinds or longitudinal splinters are arranged within the dismantling device 8 over their increasing conveying width in such a way that guide paths 23 which intersect at an acute angle are formed for them.
  • FIG. 4 shows that the distance a between the cutting edges 12 of two gap knives 11 arranged side by side in a row 10 is smaller than between the rear knife edges.
  • the thickness of the knives 11 designed with a sharp cutting edge 12 is preferably 2-3 mm.
  • the knife stroke can be around 200 mm.
  • the splitters or rinds used as the starting material are aligned side by side and one above the other, approximately parallel to one another in the longitudinal direction and equalized to form the endless package strand 2 of approximately the same width and height.
  • This parcel strand which is conveyed continuously or discontinuously on the conveyor 1, is acted upon by the printing device 3 in order to prevent evasion during the subsequent dismantling.
  • the chain strand 2 is then transported by the disassembling device 8 in the conveying direction 9 from the chain conveyor 15.
  • the packet strand 2 comes into the range of action of the splitting knives 11 which perform vertical oscillating cutting movements and which, with their vertical cutting edges 12, split the splinters or rinds in the longitudinal direction against their feed direction 9, longitudinal splits resulting from the repeated longitudinal splitting and being separated in parallel with the fibers.
  • the guide elements 22 indicated in FIG. 2 are provided.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Finishing Walls (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Glass Compositions (AREA)

Claims (30)

  1. Procédé pour la fabrication d'une toison (1) cohérente composée d'éclats longs (2) produits par désintegration par fendage de la matière de base amenée et, ensuite, comprimés sous forme d'une toison qui, après, est encollée (3) et, ensemble avec d'autres toisons, pressée en forme de blocs ou similaires, ce procédé étant caractérisé par les suivantes étapes:
    a) Comme matière de base servent des délignures (5) ou dosses (4) qui, rapprochées l'une à côté et l'une au-dessus de l'autre sont alignées approximativement en parallèle l'une à l'autre, en direction longitudinale à former un ruban-paquet (6) avec largeur et hauteur approximativement égalisées;
    b) approximativement en horizontale, ce ruban-paquet est avancé en direction longitudinale des délignures ou dosses et, simultanément, est soumis à des forces de pression afin de prévenir à ce que le ruban-paquet échappe au fendage (7) qui suit;
    c) ensuite, le ruban-paquet est conduit à travers d'une installation de fendage (8) qui fend les délignures ou dosses individuelles en sens longitudinal moyennant des mouvements de coupe (9) verticaux à rhythme rapide, de sorte que sont obtenus des éclats longs séparés en parallèle avec la fibre, ledit ruban-paquet se reduisant ainsi en hauteur mais croissant en largeur;
    d) par la suite, par effet de concassement (10) d'en haut, ces éclats longs sont comprimés en une toison.
  2. Procédé selon revendication 1, caractérisé par conduction des éclats longs sur des voies croisantes avec angles aigus pour ainsi former un entrelacs (11).
  3. Procédé selon revendications 1 ou 2, caractérisé par la fabrication d'éclats longs avec des sections de 100 mm² en moyenne et de 200 mm² au maximum.
  4. Procédé selon revendications 1, 2 ou 3, caractérisé par le fendage des délignures ou dosses individuelles en sens opposé à la direction d'avance, ceci moyennant des mouvements de coupe oscillants en perpendiculaire produisant ainsi des éclats longs.
  5. Procédé selon une des revendications précédantes, caractérisé par le rassemblement, avant leur traitement, des délignures ou dosses sous forme de bottes (12) individuelles qui, ensuite, sont désunies pour individualiser les délignures ou dosses pour en former un ruban-paquet sans fin.
  6. Procédé selon revendication 5, caractérisé par l'égalisation du ruban-paquet à une hauteur considérablement inférieure au diamètre d'une botte.
  7. Procédé selon une des revendications précédentes, caractérisé par l'exercice de plusieurs mouvements de coupe oscillants en perpendiculaire, actuant, l'un après l'autre, sur le ruban-paquet, respectivement sur ses délignures ou dosses.
  8. Procédé selon une des revendications précédantes, caractérisé par une fréquence d'oscillation des mouvements de coupe allant jusqu'à 80 cycles.
  9. Procédé selon revendications 7 ou 8, caractérisé par l'exercice, entre les individuelles opérations de coupe, de forces de pression exercées d'en haut qui favorisent l'avance des délignures ou dosses.
  10. Procédé selon une des revendications précédentes, caractérisé par un fort effet de force sous forme d'un coup de concassement exercé d'en haut pour comprimer les éclats longs formant l'entrelacs, ainsi transposant dans des millisecondes une énergie accumulée, et ceci sans besoin de générer de grandes énergies cinétiques.
  11. Procédé selon une des revendications précédantes, caractérisé par l'assujettissement de la toison préssée à une égalisation de son épaisseur.
  12. Procédé selon une des revendications précédantes, caractérisé par l'emploi de matière de base non écorcée de toute longueur voulue.
  13. Procédé selon revendication 9, caractérisé par la séparation et l'évacuation de l'ecorce lors de la désintégration par fendage des délignures ou dosses, respectivement lors de la formation de l'entrelacs.
  14. Procédé selon une des revendications précédantes, caractérisé par un transport soutenu du ruban-paquet avancé de préférence en continu à vitesse constante à travers de l'installation de fendage.
  15. Dispositif pour la fabrication d'une toison cohérente d'éclats longs produits par fendage de la matière de base amenée et ensuite comprimés de manière à former une toison qui, par la suite, est encollée et pressée, ensemble avec d'autres toisons ou blocs ou formes similaires, en particulier afin de réaliser le procédé selon une des revendications précédantes, caractérisé par les critères suivants:
    a) un convoyeur pour un ruban-paquet sans fin composé de délignures ou dosses alignées en direction longitudinale;
    b) un dispositif de pression positionné au-dessus de ce convoyeur qui s'étend sur la largeur de transport et actionne verticalement vers le bas en roulant sur le ruban-paquet;
    c) une installation de fendage (8) rangée en aval du convoyeur (1), comprenant plusieurs séries de couteaux (10) alignées en travers à la direction de transport (9), l'une derrière l'autre et déplacées l'une par rapport à l'autre, chacune de ces séries de couteaux composée d'un nombre de couteaux de fendage (11) groupés espacés l'un à côté de l'autre et guidés de manière déplaçable en perpendiculaire et assujettis à une commande (13) à rhythme rapide;
    d) en aval de l'installation de fendage (8) est rangé un équipement de compression (17) servant à comprimer les éclats longs préalablement fendus pour en former une toison (18).
  16. Dispositif selon revendication 15, caractérisé par des éléments guideurs (22), disposés à l'intérieur de l'installation de fendage sur sa largeur de transport croissante, qui dévient les délignures ou dosses longitudinalement fendues, respectivement les éclats longs de manière à former des voies de guidage (23) croisantes avec angles aigus.
  17. Dispositif selon revendication 15 ou 16, caractérisé par un dispositif doseur en amont du convoyeur à ruban-paquet (1) qui individualise les délignures (7) ou dosses hors des bottes amenées.
  18. Dispositif selon revendication 15, 16 ou 17, caractérisé par un dispositif égalisateur associé au convoyeur à ruban-paquet (1) afin de former un ruban-paquet (2) de largeur et hauteur approximativement égales.
  19. Dispositif selon une des revendications 15 à 18, caractérisé par le fait que l'installation de fendage (8) rangée en amont du dispositif de pression (3) possède des rouleaux-presseurs (5) et/ou des boules de pression (14) qui peuvent être actués à l'aide de cylindres hydrauliques unis entre eux.
  20. Dispositif selon revendication 19 caractérisé par le logement flottant des rouleaux-presseurs (5).
  21. Dispositif selon revendication 15 ou 16, caractérisé par le fait que le dispositif de pression (3) rangé en amont de l'installation de fendage (8) possède des presseurs à contact (15) (4) avec tôles de guidage (16) (6) assurant un meilleur guidage en parallèle des délignures (7) ou des dosses.
  22. Dispositif selon une des revendications 15 à 21, caractérisé par l'emplacement au moins approximativement vertical des couteaux de fendage (11), avec taillants (12) approximativement en perpendiculaire et opposés au ruban-paquet (2).
  23. Dispositif selon revendication 22, caractérisé par le fait que la distance (a) entre les taillants (12) de deux couteaux de fendage (11), placés l'un à côté de l'autre en une série (10), est inférieure à la distance entre les arêtes arrières des couteaux.
  24. Dispositif selon une des revendications 15 à 23, caractérisé par le fait qu'au moins les couteaux de fendage (11) d'une série (10) se trouvent groupés dans un cadre commun (14) commandé par une commande oscillante (13).
  25. Dispositif selon une des revendications 15 à 24, caractérisé par le fait que le convoyeur menant à travers de l'installation de fendage (8) est constitué de chaînes (15) guidées entre les couteaux de fendage (11).
  26. Dispositif selon une des revendications 15 à 25, caractérisé par un convoyeur à tabliers (19) rangé en aval de l'installation de fendage (8) pour servir de transporteur pour la toison (18).
  27. Dispositif selon une des revendications 15 à 26, caractérisé par des presseurs à contact (16) situés dans l'installation de fendage (8) entre les individuelles séries de couteaux (10) pour comprimer d'en haut le ruban-paquet (2), respectivement l'entrelacs en train d'être formé, pendant qu'il passe par l'installation de fendage (8).
  28. Dispositif selon revendication 27, caractérisé par le fait que les presseurs à contact (16) comprennent des rouleaux-presseurs logés flottant et tournant librement.
  29. Dispositif selon une des revendications 15 à 28, caractérisé par le positionnement incliné en sens opposé à la direction de transport (9) des couteaux de fendage (11) qui ainsi, avec la direction de transport, renferment un angle aigu.
  30. Dispositif selon une des revendications 15 à 29, caractérisé par le fait que l'unité de compression (17) en aval de l'installation de fendage (8) se compose de plusieurs unités de force (17a) qui transposent l'énergie en elles accumulée à un rhythme rapide limité à des millisecondes.
EP90108621A 1989-05-30 1990-05-08 Procédé et dispositif pour fabriquer une nappe cohérente de fibres longues, par la suite pressée pour former un bloc ou un objet similaire Expired - Lifetime EP0400359B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3917452A DE3917452C1 (fr) 1989-05-30 1989-05-30
DE3917452 1989-05-30

Publications (3)

Publication Number Publication Date
EP0400359A2 EP0400359A2 (fr) 1990-12-05
EP0400359A3 EP0400359A3 (fr) 1992-03-18
EP0400359B1 true EP0400359B1 (fr) 1994-08-31

Family

ID=6381609

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Application Number Title Priority Date Filing Date
EP90108621A Expired - Lifetime EP0400359B1 (fr) 1989-05-30 1990-05-08 Procédé et dispositif pour fabriquer une nappe cohérente de fibres longues, par la suite pressée pour former un bloc ou un objet similaire

Country Status (11)

Country Link
US (1) US5074945A (fr)
EP (1) EP0400359B1 (fr)
JP (1) JPH03121806A (fr)
AT (1) ATE110615T1 (fr)
AU (1) AU627581B2 (fr)
CA (1) CA2017727A1 (fr)
DD (1) DD294659A5 (fr)
DE (2) DE3917452C1 (fr)
FI (1) FI902694A0 (fr)
NO (1) NO173436C (fr)
PT (1) PT94207A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19747930A1 (de) * 1997-08-21 1999-05-06 Babcock Bsh Gmbh Verfahren und Anlage zum Herstellen von Holzwerkstoffplatten
US6868877B2 (en) * 2001-11-13 2005-03-22 Louisiana-Pacific Corporation Method for producing a processed continuous veneer ribbon and consolidated processed veneer strand product therefrom
US7691223B2 (en) * 2007-01-25 2010-04-06 Ford Global Technologies, Llc Apparatus and method for making fiber reinforced sheet molding compound
CN108839146B (zh) * 2018-08-21 2023-04-07 南京林业大学 一种精准定位增强筋重组竹构件生产模具及制作方法
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

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Publication number Priority date Publication date Assignee Title
CH473653A (de) * 1968-07-31 1969-06-15 Bauwerk Bodenbelagsind Ag Verfahren und Vorrichtung zum Schneiden von Holz und Holzwerkstoffen
US3674219A (en) * 1970-07-24 1972-07-04 Tennessee Valley Authority Green-wood fibrating means and method
DE2600948C3 (de) * 1976-01-13 1984-04-19 Knäbel, Horst, Ing.(grad.), 4005 Meerbusch Krafteinheit als Arbeitsorgan, z.B. für Pressen zum Formgeben, Verdichten usw.
ZA772210B (en) * 1976-04-15 1978-03-29 Commw Scient Ind Res Org Reconsolidated wood product
US4122236A (en) * 1977-05-09 1978-10-24 Holman John A Artificial board of lumber and method for manufacturing same
CA1091135A (fr) * 1978-03-13 1980-12-09 Derek Barnes Preparation en trois etapes de grandes lamelles de bois
US4371020A (en) * 1978-03-13 1983-02-01 Macmillan Bloedel Limited Three-step process for preparation of long wood strands
CA1098423A (fr) * 1978-03-13 1981-03-31 James K. Welsh Traduction non-disponible
US4337809A (en) * 1980-08-25 1982-07-06 Bertolette Robert K Log Splitter
AU563122B2 (en) * 1983-11-23 1987-06-25 Valjul Pty Ltd Improvements in manufacture of reconsolidated wood products
WO1985002366A1 (fr) * 1983-11-23 1985-06-06 Commonwealth Scientific And Industrial Research Or Procede ameliore de production de bois reconsolide
CA1235870A (fr) * 1983-11-23 1988-05-03 William G. Grace Procede continu ou semi-continu pour le faconnage d'un produit en bois reconstitue
AU563123B2 (en) * 1983-11-23 1987-06-25 Valjul Pty Ltd Improvements in manufacture of reconsolidated wood products
WO1985002370A1 (fr) * 1983-11-23 1985-06-06 Repco Limited Fabrication de produits de bois reconstitue
DE3482774D1 (de) * 1983-11-23 1990-08-23 Commw Scient Ind Res Org Herstellung zusammengestellter holzerzeugnisse.
JPS63107505A (ja) * 1986-06-11 1988-05-12 Koyo Sangyo Kk 積層材及びその製造方法
WO1988000517A1 (fr) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif de decoupage sans eclats de troncs d'arbres en produits de bois
AU623399B2 (en) * 1988-05-18 1992-05-14 Commonwealth Scientific And Industrial Research Organisation Improved method and apparatus for use in producing reconsolidated wood products

Also Published As

Publication number Publication date
NO173436C (no) 1993-12-15
NO902383L (no) 1990-12-03
EP0400359A2 (fr) 1990-12-05
DD294659A5 (de) 1991-10-10
JPH03121806A (ja) 1991-05-23
PT94207A (pt) 1991-02-08
AU5607690A (en) 1990-12-06
AU627581B2 (en) 1992-08-27
EP0400359A3 (fr) 1992-03-18
NO173436B (no) 1993-09-06
ATE110615T1 (de) 1994-09-15
CA2017727A1 (fr) 1990-11-30
FI902694A0 (fi) 1990-05-30
DE3917452C1 (fr) 1990-10-25
DE59006948D1 (de) 1994-10-06
US5074945A (en) 1991-12-24
NO902383D0 (no) 1990-05-29

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