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EP1149671B1 - Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu - Google Patents

Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu Download PDF

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Publication number
EP1149671B1
EP1149671B1 EP20010109734 EP01109734A EP1149671B1 EP 1149671 B1 EP1149671 B1 EP 1149671B1 EP 20010109734 EP20010109734 EP 20010109734 EP 01109734 A EP01109734 A EP 01109734A EP 1149671 B1 EP1149671 B1 EP 1149671B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
scattering
toothed discs
teeth
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
EP20010109734
Other languages
German (de)
English (en)
Other versions
EP1149671A1 (fr
Inventor
Matthias Graf
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.)
Dieffenbacher GmbH and Co KG
Original Assignee
Dieffenbacher GmbH and 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 and Co KG filed Critical Dieffenbacher GmbH and Co KG
Publication of EP1149671A1 publication Critical patent/EP1149671A1/fr
Application granted granted Critical
Publication of EP1149671B1 publication Critical patent/EP1149671B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a device for scattering grit on a continuously moving pad according to the preamble of claim 1.
  • a device for scattering grit on a continuously moving pad according to the preamble of claim 1.
  • Such a device is, for example US-A-3,252,186 known.
  • rotating disk rollers or spiked rollers which have rows arranged on the circumference spike, which engage between the spiked rows of the opposite roller.
  • Fiber bale opening rollers are known, which are driven in opposite directions rotating.
  • the rollers are designed as disc shafts with attached toothed disks. These toothed disks have so-called Auflösezähne, which are set counter to the direction of rotation sawtooth-like, wherein the opening teeth of the rollers mesh and form a meandering gap.
  • a device for spreading matte grit on a moving surface in which an arrangement of disk rolls is provided. These disk rollers are all driven in the same direction rotating and form scattering chambers for grit of different grain size. In addition to the classification of the components of the grit, foreign bodies such as glue lumps, splinters and so forth are discharged behind the disk roller and collected in a gutter.
  • a cover layer spreading device which has a screening device below a blow register, which comprises a vibration drive.
  • a screening device below a blow register, which comprises a vibration drive.
  • Object of the present invention is therefore to develop a device for spreading of grit in such a way that a high quality wood-based material board can be produced.
  • the first roller which rotates slowly and has large recesses between the teeth, a good entrainment of the material to be dissolved, is achieved.
  • the second roller which has approximately twice as many teeth and rotates much faster, now pulls the fibers entrained by the first roller through the dissolving gap during rotation. Due to the large number of teeth and the fast rotation, a good fiber resolution is achieved. Since the rollers are subject to high wear during operation, it is easily possible to replace the worn toothed disks by the toothed disks arranged at a distance from the rollers.
  • the rear side of the tooth flanks can be inclined in the direction of rotation. This has the advantage that the material after it has been combed through by the rollers, can easily escape from the pockets.
  • the toothed discs are radially extending outwardly pointed or slightly rounded and the rollers are arranged such that between the toothed discs of the adjacent rollers, a zigzag gap with the same gap spacing is formed.
  • Fig. 1 1 schematically shows a forming station 1 with dosing bunker 2, an opening roller arrangement 3, a dosing belt weigher 4, a spreading head arrangement 5 and a forming belt 6, onto which the material web 7 is sprinkled from glued fibers.
  • the material flow preferably consists of glued fibers, cached and distributed to an intended discharge width.
  • the glued fibers are fed via a Austragswalzenan Aunt 8 of the dosing bunker 2 on the opening roller assembly 3, which consists of two oppositely rotating rollers 9, 9 '.
  • an additional conveying device which supplies the material stream of glued fibers to a spreading head arrangement 5.
  • the additional conveying device is designed as a feeder belt balance 4, which continuously conveys a controllable flow rate in the spreading head assembly 5, so that depending on the plate thickness and width of the scattering head assembly 5 a predetermined amount is strewn to the forming belt 6.
  • the conveying direction of the forming belt 6 is shown here by the arrow 10.
  • the fiber opening roller arrangement 3 could also be arranged between the conveying device 4 and the spreading head arrangement 5. Furthermore, it would also be possible to use a forming station which does not contain any additional conveying device 4, so that the fiber opening roller arrangement 3 is arranged between the metering hopper 2 and the spreading head arrangement.
  • an opening roller assembly 3 which consists of two axially parallel rollers 9, 9 '.
  • the opening roller assembly 3 described below is as already to Fig. 1 described preferably used for the production of fiberboard, wherein from a metering hopper glued fibers as Material flow via a Austragswalzenan ever be placed on the roller 9.
  • the task of material flow on the roller 9 is shown by the arrows 11.
  • the rollers 9, 9 ' are provided with toothed discs 12, 13, wherein the toothed discs 12, 13' are arranged axially spaced on the rollers 9, 9. Between the arranged on the rollers adjacent toothed discs 12, 13 each spacer sleeves 14, 15 are inserted.
  • the toothed disc 12 and the toothed disc 13 are provided at its periphery with evenly distributed over the circumference arranged teeth 16, 17.
  • the teeth 16, 17 are formed substantially rectangular and are formed radially extending.
  • the teeth 16, 17 are formed symmetrically with respect to a beam line 18 passing through the center of the roller 9 'and the tooth center.
  • the pitch of the toothed discs 13 is larger (substantially twice as large) as the pitch of the toothed discs 12. This results in significantly larger recesses between the teeth 16 of the roller 9 than between the teeth 17 of the roller 9 '.
  • the roller 9 and the roller 9 ' are, as indicated by the arrows 21, driven in opposite directions rotating, the rotational speeds of the rollers 9 and 9' are of different sizes. In this case, the roller 9 runs slower than the roller 9 '. In a preferred embodiment the roller 9 runs at 200 to 800 revolutions per minute, preferably 400 to 600, and the roller 9 'at 800 to 2,500 revolutions per minute, preferably 1,000 to 1,400.
  • the fiber flow is applied to the slowly rotating roller 9.
  • the fibers are taken up and further transported in the direction of rotation, so that the roller 9 has the function of a transport roller.
  • the fast-rotating roller 9 ' dips into the fiber-laden roller 9 and pulls the fibers of the fiber stream through the gaps formed between the toothed discs 12, 13.
  • the roller 9 'thus has the function of an opening roller.
  • the fiber stream then passes to a scattering roller arrangement, not shown, and can be scattered as a non-woven fabric or first reaches another conveyor.
  • opening cylinder assemblies 3 which, as described above, likewise consists of two opening rollers 9, 9 'arranged in opposite directions rotating with toothed disks 24, 25 or 26, 27 arranged on the rollers.
  • opening roller assembly according to the Figures 2 and 3 are the toothed discs without spacers on the rollers 9, 9 'mounted.
  • the toothed disks can interact in an intermeshing manner
  • the toothed disks extend radially outward (FIG. Fig. 4 ) or radially outwardly extending rounded ( Fig. 5 ).
  • the opposite arranged Rollers 9, 9 'with mounted toothed pulleys 24, 25 and 26, 27 are arranged such that between the toothed pulleys of the adjacent rollers 9, 9', a zigzag-shaped uniform gap 29 is formed.
  • the zigzag gap 29 can be adjusted by changing the distance of the rollers 9, 9 '.
  • an adaptation to differently dissolving fibers can be achieved.
  • rollers 9, 9 'of the opening roller assembly are arranged axially parallel and wherein a through the central axes of the rollers 9, 9' extending plane to a horizontal plane at an angle of 30 ° to 90 ° , preferably from 45 ° to 75 °.
  • the particles of the material flow move in a different pitch parabola from the opening roller assembly, so that unwanted foreign bodies can be separated from the remaining fiber stream.
  • the unwanted foreign bodies leaving the opening roller assembly 3 at high speed in a flat parabola can be collected in a separate tray and thus separated from the remainder of the fiber stream.
  • a screw conveyor in the shaft or an obliquely formed bottom plate of the shaft the foreign body can be removed and be disposed of.
  • the fiber stream impinges on the scattering head arrangement or dosing belt scales arranged below the opening roller arrangement 3 and is subsequently scattered to form a fiber web.

Landscapes

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

Claims (7)

  1. Dispositif de distribution de matières granulaires sur un support déplacé en continu au cours de la fabrication de panneaux en matériaux dérivés du bois, comportant au moins deux cylindres, disposés de manière à tourner en sens inverse et munis de disques dentés, les disques dentés de cylindres adjacents coopérant par prise les uns avec les autres, les disques dentés (12) du premier cylindre (9) s'engageant dans des intervalles axiaux des disques dentés (13) du deuxième cylindre (9') et les dents (16, 17) des disques dentés (12, 13) étant orientées dans le sens radial vers l'extérieur, et le premier cylindre (9) tournant plus lentement que le deuxième cylindre (9'), caractérisé en ce que le pas du disque denté (13) du deuxième cylindre (9') est supérieur au pas du disque denté (12) du premier cylindre (9).
  2. Dispositif de distribution de matières granulaires selon la revendication 1, dans lequel les disques dentés (12, 13) sur les cylindres (9, 9') sont situés à distance axiale les uns des autres par l'intermédiaire de manchons (14, 15).
  3. Dispositif de distribution de matières granulaires selon la revendication 1 ou 2, dans lequel les dents (16, 17) des disques dentés (12, 13) sont réalisées en pointe dans le sens radial ou avec une forme arrondie, et les cylindres (9, 9') sont montés de telle sorte qu'une fente en zigzag se forme entre les disques dentés (12, 13).
  4. Dispositif de distribution de matières granulaires selon la revendication 3, dans lequel les cylindres (9, 9') sont montés de manière à pouvoir se déplacer l'un par rapport à l'autre.
  5. Dispositif de distribution de matières granulaires selon l'une quelconque des revendications précédentes, dans lequel les dents (16, 17) des disques dentés (12, 13) sont réalisées symétriquement par rapport à une ligne de projection (18) passant par le centre du cylindre (9, 9') et le centre des dents.
  6. Dispositif de distribution de matières granulaires selon l'une quelconque des revendications précédentes, dans lequel les faces arrière (par référence au sens de rotation) des flancs de dents, définies par les dents (16), sont réalisées en s'effilant dans le sens radial vers l'extérieur.
  7. Dispositif de distribution de matières granulaires selon l'une quelconque des revendications précédentes, dans lequel les faces avant, par référence au sens de rotation, des flancs de dents, définies par les dents (16), sont réalisées en étant inclinées vers l'avant.
EP20010109734 2000-04-28 2001-04-20 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu Expired - Lifetime EP1149671B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000120890 DE10020890A1 (de) 2000-04-28 2000-04-28 Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage
DE10020890 2000-04-28

Publications (2)

Publication Number Publication Date
EP1149671A1 EP1149671A1 (fr) 2001-10-31
EP1149671B1 true EP1149671B1 (fr) 2008-06-11

Family

ID=7640239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010109734 Expired - Lifetime EP1149671B1 (fr) 2000-04-28 2001-04-20 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu

Country Status (2)

Country Link
EP (1) EP1149671B1 (fr)
DE (2) DE10020890A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007952B4 (de) * 2007-02-17 2008-10-16 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streugutanlage
ITMO20100314A1 (it) * 2010-11-05 2012-05-06 Imal Srl Dispositivo per fluidificare e/o accelerare un flusso di materiali incoerenti in forma di fibre, scaglie o trucioli.
DE102015206469B3 (de) * 2015-04-10 2016-10-13 Mayfair Vermögensverwaltungs Se Streukopf, Verfahren und Paneel
CN109227868B (zh) * 2018-11-19 2023-07-18 扬州快乐机械有限公司 一种铺装耙组
CN118559838B (zh) * 2024-07-26 2025-10-31 亚联机械股份有限公司 一种可剔除弯曲刨花的刨花板铺装装置

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
DE1174058B (de) * 1959-09-09 1964-07-16 Abitibi Power & Paper Company Geraet zur Herstellung einer gerichtete Holz-teilchen unterschiedlicher Abmessungen enthaltenden Spanplatte
US3252186A (en) * 1963-01-21 1966-05-24 Wood Conversion Co Differential fiber dispersing rolls and felting therefrom
IT1065247B (it) * 1975-08-08 1985-02-25 Siempelkamp Gmbh & Co Dispositivo per spargere il materiale componente i pannelli grezzi per la preparazione di pannelli truciolari pannelli di fibre e simili
DE8128311U1 (de) * 1981-09-26 1986-12-11 Carl Schenck Ag, 6100 Darmstadt Vorrichtung zum Ausrichten von Spänen bei der Herstellung von Spanplatten
DE4019489C3 (de) * 1990-06-19 1998-05-20 Siempelkamp Gmbh & Co Anlage zum Streuen von beleimten Spänen im Zuge der Herstellung von Spanplatten
DE4212017C2 (de) * 1992-04-09 1999-08-19 Kvaerner Panel Sys Gmbh Deckschichtstreuvorrichtung
DE4302850B9 (de) * 1993-02-02 2004-09-30 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
DE4345567B4 (de) * 1993-02-02 2005-03-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
US5325954A (en) * 1993-06-29 1994-07-05 Trus Joist Macmillan Orienter
US5404990A (en) * 1994-08-12 1995-04-11 Macmillan Bloedel Limited Vane type orienter
DE4439653A1 (de) * 1994-11-07 1996-05-09 Baehre & Greten Vorrichtung zum Streuen von beleimten Spänen, Fasern und dergleichen Teilchen
SE509665C2 (sv) * 1997-02-24 1999-02-22 Flaekt Ab MDF-Formare
IT1290732B1 (it) * 1997-03-12 1998-12-10 Pal Srl Dispositivo a rulli per la separazione di chips e particelle a granulometria differenziata e macchina formatrice utilizzante
DE19846108B4 (de) * 1998-10-07 2013-10-31 Dieffenbacher GmbH Maschinen- und Anlagenbau Walze zum Streuen und Abbremsen rieselfähiger Materialien
DE19846106A1 (de) * 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Streustation
DE19846107A1 (de) * 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Walze zum Streuen und Abbremsen rieselfähiger Materialien
DE19857498C1 (de) * 1998-12-14 2000-06-15 Siempelkamp Gmbh & Co Walzensiebmaschine und deren Verwendung

Also Published As

Publication number Publication date
EP1149671A1 (fr) 2001-10-31
DE50114016D1 (de) 2008-07-24
DE10020890A1 (de) 2001-10-31

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