WO2011095356A1 - Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée et mat de matériau granulaire destiné à être comprimé dans une presse au cours de la fabrication de panneaux en matériau dérivé du bois (l) - Google Patents

Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée et mat de matériau granulaire destiné à être comprimé dans une presse au cours de la fabrication de panneaux en matériau dérivé du bois (l) Download PDF

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Publication number
WO2011095356A1
WO2011095356A1 PCT/EP2011/000540 EP2011000540W WO2011095356A1 WO 2011095356 A1 WO2011095356 A1 WO 2011095356A1 EP 2011000540 W EP2011000540 W EP 2011000540W WO 2011095356 A1 WO2011095356 A1 WO 2011095356A1
Authority
WO
WIPO (PCT)
Prior art keywords
mat
scattering
grit
width
material flow
Prior art date
Application number
PCT/EP2011/000540
Other languages
German (de)
English (en)
Inventor
Gernot Von Haas
Peter Rath
Reinhard Schwinn
Original Assignee
Dieffenbacher Gmbh + Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dieffenbacher Gmbh + Co. Kg filed Critical Dieffenbacher Gmbh + Co. Kg
Priority to CN201180007690.8A priority Critical patent/CN102802895B/zh
Priority to EP11710668.2A priority patent/EP2531331B1/fr
Publication of WO2011095356A1 publication Critical patent/WO2011095356A1/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
    • 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
    • B27N3/146—Controlling mat weight distribution
    • 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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off

Definitions

  • the invention relates to a method for producing a spreading material mat from at least one scattered layer for pressing in a press in the course of the production of wood-based panels according to the preamble of
  • Claim 1 a plant for producing a grit mat of at least one scattered layer for pressing in a press in the course of the production of wood-based panels according to the preamble of
  • Claim 16 and a spreading material mat for trimming and / or, preferably subsequent, pressing in a press in the course of the production of wood-based panels according to claim 23 In the production of material panels from scatterable materials, a mixture of particles or fibrous materials and a binder to a Scattering mat scattered on a forming or conveyor belt, the grit mat is then fed to any necessary pretreatment and finally a compression. In this case, usually discontinuous floor presses and continuously operating presses are used, wherein in the latter between two rotating steel belts a scattered pressed material mat is pressed with glued scattering particles under pressure and heat input.
  • MDF pure particle plates
  • CONFIRMATION COPY wood chips are also used, which are usually oriented and scattered in order to increase the strength and strength of the wooden boards made in length and width. It will be
  • OSB and OSL boards are produced on continuous double belt presses or cycle presses.
  • Chips or chips tend to leave inaccurate gaps in their removal from the grit mat.
  • Grit mat is to be carried out, are usually in
  • this solution means an advantage in the compression, since thus the necessary measures for a marginal increase of
  • Grit mat are created and thus even with a bulging of the grit mat in the press in the edge regions a slight increase in the density or over the entire surface of a material plate
  • a form strand usually corresponds to the endless forming belt with scattering heads arranged above it for "shaping" a grit mat can have a length of up to 50 m
  • Pretreatments such as in steam injection plants, hot-air devices,
  • Pre-pressing or the like To make matters worse, that with several scatter heads in a row, minimal deviations of the edge litter quality or of the location can occur, which also worsen the quality of the longitudinal edges of a litter mat.
  • a grit mat usually has to be trimmed at the longitudinal edges before it can be trimmed by the gripper mat
  • Form strand can be transferred to the press. Especially at the continuous production in a continuous operation
  • Double belt press is to be avoided that during the transfer to the steel strips of the press edge pieces of the spreading material mat uncontrollably crumble and fall into the transfer gap or cake on the lower steel strip of the press.
  • devices for edge trimming a grit mat which trim the grit mat in the form of strand at the longitudinal edges.
  • This has the economic advantage that the resulting grit can be returned to the scattering process immediately without the material having to go through the elaborate pre-production (preparation, drying, gluing).
  • This measure limits, since the back-guided grit is already glued for a long period of time and the binder cures without supply of pressure and heat over time. It should also be the goal to keep the amount of grit returned as low as possible. It is obvious, however, that after the above
  • the invention has for its object a method, a system and a grit mat for producing at least one layer of a
  • Guide device against occurring air vortices can be improved.
  • the solution for a system is that for at least partial displacement of the material to be spread substantially transversely to the production direction of the forming belt in the material flow and / or that at least partially stabilize the material to be spread in the material flow in the direction of movement between the metering device and the scattering device
  • a grit mat is distinguished, in particular produced according to the
  • Grit mat is arranged. Among other things, it is provided that preferably from the longitudinal edges to the intended
  • corresponding edges which are provided for example for a gluing in the corresponding grain / color of the surface sides, also be provided with a higher basis weight. Conceivable in particular as edge protection or for improved machining
  • Average surface weight of the spreading material mat is preferably achieved in that, in the falling material flow, parts of the material to be spread on the edge regions, viewed transversely over the forming belt, are displaced during the passage in the spreading head in the direction of the central longitudinal extent of the molding strand or of the spreading material mat. It turns out that viewed from a longitudinal side in the direction of the center of a grit mat only a lower basis weight arises in the grit mat, that detached from a higher basis weight and finally merges into the average surface weight of the grit mat. Will this
  • a possible guiding device preferably does not influence the entire falling material stream or material stream to be introduced into the scattering head, but only a part thereof. This is necessary to avoid extensive gaps in the spreading material mat. Also is not adjusted by the guide device, as usual in a width adjustment, the spread of the grit mat, but only parts of the material stream are preferably moved or diverted to achieve a different basis weight distribution over the width of the grit mat. This can be done with one or more guiding devices.
  • Dosage area weight describes the theoretical basis weight of a material flow which arises when a metering device removes scattered material controlled over the width B1 in order to transfer it to a scattering head and deposit it there on a forming belt of the width B.
  • B> B1 which is not
  • the material flow has a depth of length L in the production direction / direction of movement of the forming belt
  • the spreading surface weight describes the basis weight of the spreading material mat across the width of the forming belt with a width B. If no changes are made by the spreading head or other devices to the weight of the dosing surface, that corresponds
  • the device for the targeted storage of the material to be spread on the forming belt is designated. This is found
  • the forming belt directly above the forming belt and has as the last mechanical, in particular moving, machine element contact with the grit before it leaves the scattering head and on the forming belt respectively
  • Stabilization may be necessary if, in particular flat or orientable grit produced by its movement air turbulence, which can lead to a shift of the material to be spread in the longitudinal or transverse direction of the forming belt.
  • the stabilization and / or the displacement is preferably carried out before the material flow enters the scattering head and / or before the first contact of the material flow with a moving machine element of the scattering head.
  • the grit should preferably be scattered in a width B2 on the forming belt to a grit mat, which corresponds substantially to the width B1 of the material flow after the metering device.
  • Scatter surface weight SFG over the width B2 at least a first region with a higher basis weight FH than the Dosier vomites DFG and adjacent at least one further area with a lower basis weight FG, in particular as the Dosier vomites DFG, is set. This is especially provided when lightweight panels are to be produced in furniture.
  • a plurality of regions with a higher basis weight FH and intervening regions lower
  • Basis weight FG are arranged such that the areas with higher basis weight FH can be used in the course after the press as parting line for splitting the compressed material plate and / or as areas for attachment of fasteners or fittings in furniture use.
  • Basis weight FG be set as the Dosier vomitis DFG to keep the amount of material accumulating on the Beklamvortechnik grit low.
  • the spreading material mat is cut between the spreading head and the press by means of a trimming at the longitudinal edges to a width B3 with longitudinal edges, wherein the longitudinal edges can be arranged in areas with a higher basis weight FH than the Dosier vomitong DFG.
  • at least one baffle arranged between the dosing device and the spreader preferably movable and / or pivotable by means of at least one adjusting device, is held at least partially in the spreading material falling in the direction of movement as a mechanical guide device.
  • the grit is at least partially guided between bunker and scattering head substantially in the direction of fall along a guide flap, wherein the guide flap can also be arranged at an angle to the grit respectively to the material flow adjustable.
  • the guide flap can also be arranged at an angle to the grit respectively to the material flow adjustable.
  • geometric center of the width B2 has a, preferably axis-related, symmetry.
  • the guide flap and / or at least one baffle which are arranged over the width of the forming belt and for stabilizing and / or influencing the
  • baffles are particularly preferred in their orientation in the production direction of
  • Formbandes in the length L of the material flow 24 substantially 10% to 80%, preferably between 30% and 50% introduced. That is pre-voted in a meaningful and practical way blockages in the case area and so-called stray holes in the spreading material mat.
  • the system is independent on its own and can be used alone with the features described. At the same time, however, the system is also particularly suitable for carrying out the method
  • FIG. 1 shows a plant according to the invention, consisting of one over a
  • Figure 2 is a representation of possible basis weights across the width of a
  • FIG. 1 shows a section in plan view through the guide device according to FIG. 1 with guide plates parallel to the direction of fall for stabilizing a material flow from spreading material
  • Figure 4 is a plan view of the area of the molding strand between
  • Widths B, B1, B2, B3 and a trimming device
  • FIG. 5 shows a representation of an adjustable basis weight distribution over the width B3 of a trimmed spreading material mat for pressing in a press
  • FIG. 6 is an illustration of a basis weight distribution to be set based on the scatter surface weight of the scattering material mat to be scattered according to FIG. 3 across the width B2 under a scattering head;
  • Figure 7 is a representation in side view of the possible setting of
  • Figure 8 is a plan view of Figure 7 showing the immersion depth of
  • Figure 9 is an illustration of an expanded arrangement of two in
  • Figure 10 is a representation of a part of a guide device with a
  • Adjusting device for setting different angles of the guide plate in two corresponding schematic views and
  • Figure 11 shows a possible adjusting device interconnected
  • Baffles by means of two movable push rods.
  • FIG. 1 an exemplary plant for producing a spreading material mat 7 for pressing in a press 22 is shown on the left side in a schematic view. On the right side there is a side view according to the section line of the left illustration.
  • grit 9 is registered in a bunker 2 and controlled by means of a back stripping device 25 and underlying, endlessly circulating bunker bottom belt 16 a metering device 15 is supplied.
  • the metering device 15 carries the grit over a width B1 with a uniform Dosier vomites DFG (right representation below).
  • the guide device 5 for stabilizing and / or displacement of the scattering material 9 in the material flow 24 substantially after the metering device 15 and before the onset of the grit weight SFG across the width B2 of the grit
  • Material flow 24 in the scattering head 1 and / or before the first contact of the material flow 24 with a moving machine element eg.
  • a guide flap 18 with optional mechanical or automatic adjusting devices may be arranged.
  • the guide flap 18 is arranged over the entire width of the forming belt 8 and / or the scattering head 1, at least over the width B1 of the scattering material 9 after the metering device 15.
  • one or more dissolving devices 4 can be arranged for the grit 9, preferably, these are arranged between the guide flap 18 and the scattering device 14.
  • the effect for a lateral adjustment of the basis weight along the longitudinal edges 17 of the grit mat 7 can be further enhanced.
  • the guide 6 is not lateral
  • FIG. 2 shows various basis weight distributions over the widths B1, B2 and B3. These are specifically concerned with the
  • Grit mat 7 In the bottom view, there is a conventional grit mat according to the prior art, which dosed over a width B1 and by means of lateral sliding walls completely (based on the
  • the fall width 21 (of the material flow 24) corresponds to the width B2 of the spreading material mat
  • a higher hill is achieved at the edge regions for trimming because either the baffles 10, for example, immerse deeper in the material flow and / or on the lateral sliding walls (Not shown) the fall width 21 of the material flow is reduced to a width B1 of the grit mat 7 and thus more material is scattered at the edge regions.
  • FIG. 3 shows a section in plan view through the guide device 5 according to FIG. 1 with guide vanes 10 arranged parallel to the direction of fall on a guide flap 18 for stabilizing the material flow 24 of a length L and a width B1 of spreading material 9 during the passage from the bunker 2 into the scattering head 1
  • baffles 10 in a kind of waiting position can be positive insofar as there are different solutions to adjust the spread. If, for example, the spreading width is reduced from 3 m to 2.5 or 2 m, said baffles 10 could not be moved inwards far enough to nevertheless carry out the method. For this reason, it is advantageous several baffles across the width to be arranged in order to be as variable as possible in the width setting. Incidentally, quite a conventional width adjustment, so lateral baffles over the entire length of the scattering head can be realized. In this case, more material could be displaced in the direction of the middle of the width of the forming belt advantageously with a plurality of baffles, so that the desired profile nevertheless forms.
  • FIG. 4 shows a plan view of the region of the molding strand between the scattering head 1 and the press 22, showing the different widths, such as the width B of the forming strip 8, the width B1 of the strip
  • FIGS. 5 to 8 show a coherent depiction of a possible production method of a spreading material mat 7 with exemplary parameters. The representation is to be worked out in order of the figures opposite to the material flow of the production, since FIG. 5 the spreading material mat 7 already suitable for pressing and trimmed with the
  • FIG. 6 shows the spreading material mat in the original width B2 after and during the scattering with the longitudinal edges 17.
  • FIG. 7 shows the adjustment of the guide device 5 necessary for influencing the metering surface weight DFG over the width B1 for producing a surface area SFG over the width B2.
  • the baffles 10 are at an angle to the direction of movement 12 of the material flow 24 from grit. 9
  • FIG. 8 shows that the baffles 10 project only partially into the material flow 24 of a depth or length L and provide for a partial displacement of the material to be spread 9 of the material flow 24 over the width B 1.
  • FIG. 9 shows, for a more complex method application or for fine adjustment, a multiple arrangement of the guide device, consisting of a guide device 5 and in the direction of movement 12 of the guide device
  • the first Guide 5 is used to move the grit 9 across the width B1, the second guide 5 'for stabilization and the
  • FIG. 10 is a representation of a part of a guide device 5 with a possible arrangement of a baffle 10 with associated adjusting device 19 for setting different angles of the guide plate 10 in two corresponding schematic views.
  • the baffle 10 can be changed by means of the adjusting devices 19 at a distance from the guide flap 18 and displaced by the opening 27 and accordingly changes the penetration depth into the material flow 24.
  • Actuator 19 is rotated.
  • FIG. 11 shows a possible adjusting device 19 for baffles 10 connected to one another by means of push rods 29.
  • the baffles 10 are connected alternately to different push rods 29, so that when a push rod 29 moves, every second baffle 10 is moved in the direction of the push rod 29.
  • These are of course only exemplary arrangements for a variety of possible adjusting devices for the baffles 10.
  • the baffles 10 not only form a vertical angle to a wall or to the guide flap 18, but also for this purpose, preferably have separately adjustable angle.
  • the openings 27 have means for sealing, so that unnecessary dust or grit can escape from the fall area.
  • a substantially lower basis weight FG should be arranged than the metering surface weight DFG.
  • longitudinal edges 20 are arranged on the spreading material mat 7 with longitudinal edges 17 by means of a trimming device 23, wherein the longitudinal edges 20 have a higher basis weight FH than the dosing surface weight DFG and / or the scattering surface weight SFG and / or than the average basis weight of the spreading material mat 7.
  • the preparation of the grit mat 7 is carried out in a claimed system and / or by the preparation of the grit mat according to the method.
  • Spreading head 20 Longitudinal edges on B3 bunker 21. Case width housing of 1 22. Press opening device 23. Trimming device guide device 1 24. Material flow (discharge area) 25. Backing device guide device 2 (scattering area) 26. Slots in 10 spreading material mat 27. Breakthrough in 18 forming belt 28. Rotary axis Grit 29. Push rod. baffle

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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)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un procédé et une installation de fabrication d'un mat de matériau granulaire (7) constitué d'au moins une couche de matériau granulaire (9) sur une courroie de moulage (8) rotative sans fin au moyen d'une tête de distribution (1), au cours de la compression du mat de matériau granulaire (7) dans une presse (22) en un panneau en matériau dérivé du bois, le matériau granulaire (9) étant distribué, en tant que flux de matériau (24), transversalement au moyen d'un dispositif de dosage (15) présentant un grammage de dosage (DFG) sensiblement régulier sur une largeur (B1) et une longueur (L) dans la direction de production (11) de la courroie de moulage (8) et étant distribué de manière orientée ou désorientée à l'aide d'au moins un dispositif de distribution (14), sur une largeur (B2), sur la courroie de moulage (8). Selon l'invention, le matériau granulaire (9) peut être déplacé au moins partiellement dans le flux de matériau (24) entre le dispositif de dosage (15) et le dispositif de distribution (14), au moyen d'au moins un dispositif de guidage mécanique (5) de manière sensiblement transversale à la direction de production (11) de la courroie de moulage (8) et/ou le matériau granulaire (9) est stabilisé au moins partiellement dans le flux de matériau (24), en termes de déplacement, dans le sens du déplacement (12). L'invention concerne également un mat de matériau granulaire destiné à être comprimé dans une presse (1400).
PCT/EP2011/000540 2010-02-05 2011-02-05 Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée et mat de matériau granulaire destiné à être comprimé dans une presse au cours de la fabrication de panneaux en matériau dérivé du bois (l) WO2011095356A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180007690.8A CN102802895B (zh) 2010-02-05 2011-02-05 用于生产散布材料垫的方法和设备以及散布材料垫
EP11710668.2A EP2531331B1 (fr) 2010-02-05 2011-02-05 Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010001649A DE102010001649A1 (de) 2010-02-05 2010-02-05 Verfahren und Anlage zur Herstellung einer Streugutmatte aus zumindest einer gestreuten Schicht und eine Streugutmatte zur Verpressung in einer Presse im Zuge der Herstellung von Holzwerkstoffplatten (L)
DE102010001649.7 2010-02-05

Publications (1)

Publication Number Publication Date
WO2011095356A1 true WO2011095356A1 (fr) 2011-08-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/000540 WO2011095356A1 (fr) 2010-02-05 2011-02-05 Procédé et installation de fabrication d'un mat de matériau granulaire constitué d'au moins une couche distribuée et mat de matériau granulaire destiné à être comprimé dans une presse au cours de la fabrication de panneaux en matériau dérivé du bois (l)

Country Status (4)

Country Link
EP (1) EP2531331B1 (fr)
CN (1) CN102802895B (fr)
DE (1) DE102010001649A1 (fr)
WO (1) WO2011095356A1 (fr)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
DE102015107372A1 (de) * 2015-05-11 2016-11-17 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zum Streuen eines Vlieses im Zuge der Herstellung von Werkstoffplatten und eine Werkstoffplatte
DE102015107373A1 (de) * 2015-05-11 2016-11-17 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zum Streuen eines Vlieses im Zuge der Herstellung von Werkstoffplatten und eine Werkstoffplatte
DE102016110073A1 (de) * 2016-05-31 2017-11-30 Dieffenbacher GmbH Maschinen- und Anlagenbau Streuvorrichtung und Verfahren zum kontinuierlichen Aufbringen von Streugut auf ein Formband
DE102016113014B4 (de) * 2016-07-14 2020-03-05 Dieffenbacher GmbH Maschinen- und Anlagenbau Streuanlage und Verfahren zur Herstellung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten
DE102017111093B4 (de) * 2017-05-22 2020-01-30 Dieffenbacher GmbH Maschinen- und Anlagenbau Streuanlage zur Herstellung einer Streugutmatte und Verfahren zum Betreiben einer solchen Streuanlage
DE102018107354A1 (de) * 2018-03-28 2019-10-02 Siempelkamp Maschinen- Und Anlagenbau Gmbh Streuvorrichtung
WO2019210941A1 (fr) * 2018-05-02 2019-11-07 Xylo Technologies Ag Procédé et appareil permettant de produire une planche pour la production de panneaux, planche pour la production de panneaux, procédé et appareil permettant de produire des panneaux, et panneau pouvant être produit par le procédé
WO2019210940A1 (fr) 2018-05-02 2019-11-07 Xylo Technologies Ag Procédé et appareil permettant de produire une planche pour la production de panneaux, planche pour la production de panneaux, procédé et appareil permettant de produire des panneaux, et panneau pouvant être produit par le procédé

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US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus
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DE102006062396A1 (de) * 2006-12-25 2008-06-26 Dieffenbacher Gmbh + Co. Kg Verfahren und Formstation zur Bildung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten
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DE3420621A1 (de) * 1984-06-02 1985-12-05 Casimir Kast Gmbh & Co Kg, 7562 Gernsbach Verfahren zur herstellung einer faserstoffmatte
US4701294A (en) * 1986-01-13 1987-10-20 Kimberly-Clark Corporation Eductor airforming apparatus
DE19916447A1 (de) * 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Formstation
DE10018218A1 (de) * 1999-04-12 2001-10-25 Dieffenbacher Schenck Panel Formstation
WO2001066324A1 (fr) * 2000-03-10 2001-09-13 Binos Technologies Gmbh & Co. Kg Procede et dispositif de production d'un non-tisse
EP1442856A2 (fr) * 2003-02-03 2004-08-04 Dieffenbacher GmbH & Co. KG Dispositif pour orienter des copeaux de bois longs
DE102008030417A1 (de) * 2008-06-26 2009-12-31 Dieffenbacher Gmbh + Co. Kg Verfahren und Anlage zur Herstellung von Werkstoffplatten, wie Span, Schnitzel-, Faser- oder ähnlichen Holzwerkstoffplatten sowie Kunststoffplatten

Also Published As

Publication number Publication date
CN102802895A (zh) 2012-11-28
EP2531331A1 (fr) 2012-12-12
EP2531331B1 (fr) 2018-07-11
CN102802895B (zh) 2016-08-03
DE102010001649A1 (de) 2011-08-11

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