EP1889702B1 - Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte - Google Patents

Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte Download PDF

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Publication number
EP1889702B1
EP1889702B1 EP07015980A EP07015980A EP1889702B1 EP 1889702 B1 EP1889702 B1 EP 1889702B1 EP 07015980 A EP07015980 A EP 07015980A EP 07015980 A EP07015980 A EP 07015980A EP 1889702 B1 EP1889702 B1 EP 1889702B1
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EP
European Patent Office
Prior art keywords
screen
accordance
sifting
spreading
spreading machine
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.)
Not-in-force
Application number
EP07015980A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1889702A3 (de
EP1889702A2 (de
Inventor
Gernot Dr. Von Haas
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 Maschinen und Anlagenbau
Original Assignee
Dieffenbacher GmbH Maschinen und Anlagenbau
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 Maschinen und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen und Anlagenbau
Priority to PL07015980T priority Critical patent/PL1889702T3/pl
Publication of EP1889702A2 publication Critical patent/EP1889702A2/de
Publication of EP1889702A3 publication Critical patent/EP1889702A3/de
Application granted granted Critical
Publication of EP1889702B1 publication Critical patent/EP1889702B1/de
Not-in-force 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 method for the complete or layered production of a grit mat from chips according to the preamble of claim 1 and a spreader for the complete or layered production of a grit mat from chips according to the preamble of claim 14.
  • the pressing force is transmitted by hydraulic actuators on the press and heating plates and further on steel belts, which are supported by a rolling element carpet (rolling rods) circumferentially arranged on the grit.
  • the steel strips with thicknesses of approximately 1.5 to 4 mm form the weakest component in the chain of failure-threatening machine elements compared to the other, substantially stiffer elements. In this context, it does not mean that the steel strip fails completely, but should the surface of the steel strip damage it already leads to a regularly occurring poor quality of the final product and thus to rejects.
  • Such gauges have basically proven in the matter, but are problematic especially in fast-running systems, since at a production speed of more than one meter per second, the continuously operating press must be brought to a halt so quickly in an emergency or rapid shutdown that the density increase does not enter the press nip during the braking process and can cause damage to the steel belts there. In general, this succeeds successfully, but puts an enormous burden on the brake system and many machine elements of the continuous press, because in addition to the rotating steel belts, the massive idler pulleys, the revolving roll bar carpet and a few more machine elements are brought to a standstill with the corresponding moment of inertia have to.
  • the spreading material is applied to a plurality of spreading rollers driven in the same direction, which at least in groups have the same center distance and can thus assume a classifying function.
  • it is also provided at the end of this scattering roller assembly to arrange a device that can eject erroneous grit from the grit stream from the scattering area.
  • it is known in this case to subject the grit before or after the scattering rollers of an air flow parallel to the Formbandraum. Due to this air flow, small and fine particles of spreading material are carried far and thus first of all reach the forming belt to form a cover layer of fine particles.
  • a scattering device can be arranged laterally reversed again, so that again a layer of heavier spreading material is applied to the already existing material of the spreading material mat and finally passes again a fine layer of cover layer particles on the now finished spreading material mat.
  • a multi-layer grit mat can be produced by simple means having different layers, preferably fine particles form the outer layers and the larger and coarser material the middle layer. Both systems and methods have been proven in principle and were designed at a time when still predominantly calendering presses were used for the production of thin plates and the double belt presses were used with stainless steel bands for the production of thicker chipboard.
  • DE-A 25 35 461 is a device for spreading matte grit in the manufacture of particle board, fiberboard u. Like. Toward known in the discarded by means of a classifying Walzenstrereuvorides the matte grit and then classified over an air view area during storage on the forming belt, wherein in the air separation area a separating screen is arranged to the top layer area (fine) and the middle layer area (coarse) clearly delineate.
  • DE-A 40 21 939 shows a spreader for spreading particle board raw material, in which a dissolution and screening is carried out by means of a roller bed, wherein oversized grit or in particular glue lumps (balls) can be eliminated.
  • This device offers the possibility of classifying a total flow of chipboard raw material via an air classification or directly via a roll bed.
  • Both devices have in common that the grit is essentially only passed through a sieve and thus only once has the opportunity to remove excessive grit from the process process.
  • the invention has for its object to provide a method and an apparatus for complete or layered production of a grit mat from chips, which ensures a sorting of oversized grit and / or glue lumps with the same outstanding outstanding quality over the length and width of the forming belt, so In the grit mat to be produced no density peaks with possible consequential damage to the press used can occur.
  • the secondary screening is carried out by means of a perforated plate or a wire mesh, which may preferably be subjected to a continuous but also a regularly occurring vibration.
  • the second screening can also be performed with a roller screen and air classification can with several Fugspansieben be carried out, wherein preferably the following Flugspansiebe have a stronger effect than the first flowed through.
  • the air flow is directed parallel to the forming belt and can be controlled by the height of the windbreak chamber in intensity and volume.
  • the air flow is supported at the end of the windbreak chamber with a suction and there should be a separator for particulate matter there.
  • FIG. 1 Depending on the expansion and design of the production plant for wood-based panels is located before or above the grit entry a grit bunker (not shown). For this, over the width of the forming belt 14 by means of discharge rollers (not shown) the grit is controlled introduced into the grit entry 3 of the spreader and fed by a baffle 2 a roller screen 5 above the windbreak chamber 13.
  • the roller screen 5 consists of mutually parallel rollers, which define by their distance from each other a gap size through which the grit 4 can pass through.
  • the rollers can be made smooth or have a special surface pattern.
  • the roller screen 5 is associated with a discharge device 11 for oversized spreading material 15 in order to remove this spreading material 15 from the scattering process.
  • the grit 4 After successful passage of the grit 4 through the roller screen 5, the grit 4 hits a present in the wind striker 13 and directed air flow 10.
  • the lighter and thus generally smaller particles are guided by the air flow 10 through the windbreak chamber 13 and land in this embodiment, first on the forming belt 14, which rotates with the direction 22.
  • a first air classification of the material to be spread takes place by means of an oblique flight plane screen 7, which is thus arranged obliquely in relation to the air stream 10.
  • This is again oversized grit 15 sorted out against the Flugspansieb 7 and finally falls on the secondary screen 6, which can be designed as a wire screen, perforated screen or in turn as a roller screen.
  • the wind-ratchet chamber 13 can be brought about by a blower (not shown) and / or by a suction (not shown) and is regulated in accordance with the size of the litter and throughput FIG.
  • a perforated plate or a wire mesh screen is arranged as a second screen 6, that is usually arranged at an angle of 5 - 10 ° to the forming belt.
  • the wire mesh screen can be designed with a hole spacing of 5 mm ⁇ 5 mm or 10 mm ⁇ 10 mm.
  • the flight saw screens 7, 8 and / or the second screen 6 (if not provided with rotating elements) is provided with a vibration drive 16 to increase the conveying effect in the direction of the discharge devices for oversized grit.
  • FIG. 2 is shown as a further embodiment, while under the roller screen 5, one or more opening rollers may be arranged, which are preferably designed as a spoke rollers 17 with a diameter of more than 450 mm.
  • the spokes 18 may, as shown in left in spoked roller 1.7, be arranged on the outside or, as in the right spoked roller 17 in the manner of a spiral pattern from the inside out several times.
  • the direction of rotation 21 shows for overhead oversized grit on the discharge 12..
  • FIG. 3 is shown as two scattering machines 1, 1 'after FIG. 1 or 2 are placed in mirror image to each other, so that a grit mat 9 is formed with two outer fine or outer layers.
  • This system works in such a way that on the forming belt 14 first a covering layer 26 with a very thin spreading material and then a middle layer 25 with the remaining spreading material from spreading machine 1 is formed.
  • the downstream mirror-image standing spreader 1 'places on the existing layers (cover layer 26 and middle layer 25) of the grit 9 again a normal grit for the middle layer 24 and then finally again a cover layer 23 with very thin grit from.
  • Thin plates with thicknesses less than 4 mm are scattered only with two such spreading machines (wind scattering machines) according to the invention, since usually can not be safely removed with the conventional middle-layer spreading machines oversized or faulty grit.
  • Wind scattering machines oversized or faulty grit.
  • Middle layer spreaders are switched off to switch to thin plate production.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Seasonings (AREA)
EP07015980A 2006-08-14 2007-08-14 Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte Not-in-force EP1889702B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07015980T PL1889702T3 (pl) 2006-08-14 2007-08-14 Sposób i nasypywarka do wytwarzania w całości albo warstwami maty z materiału nasypywanego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006038183A DE102006038183A1 (de) 2006-08-14 2006-08-14 Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte

Publications (3)

Publication Number Publication Date
EP1889702A2 EP1889702A2 (de) 2008-02-20
EP1889702A3 EP1889702A3 (de) 2009-08-12
EP1889702B1 true EP1889702B1 (de) 2012-01-11

Family

ID=38481396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07015980A Not-in-force EP1889702B1 (de) 2006-08-14 2007-08-14 Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte

Country Status (5)

Country Link
EP (1) EP1889702B1 (zh)
CN (1) CN101186049B (zh)
AT (1) ATE540793T1 (zh)
DE (1) DE102006038183A1 (zh)
PL (1) PL1889702T3 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009007944A1 (de) 2009-02-06 2010-08-12 SCRIBA, Jörg Vorrichtung zum Streuen eines rieselfähigen Materials zu einem ein-oder mehrschichtigen Materialvlies
DE102009032074A1 (de) 2009-07-07 2011-01-13 Dieffenbacher Gmbh + Co. Kg Verfahren zur Reinigung eines Strömungswiderstandes in einer Streumaschine und eine Vorrichtung zur Reinigung eines Strömungswiderstandes
DE102009032052A1 (de) 2009-07-07 2011-01-20 Dieffenbacher Gmbh + Co. Kg Streumaschine mit zumindest einem Strömungswiderstand und ein Verfahren zum Betreiben der Streumaschine mit einem Strömungswiderstand
DE102009047125A1 (de) * 2009-11-25 2011-05-26 Dieffenbacher Gmbh + Co. Kg Anlage und Verfahren zur Formung einer Streugutmatte aus Streugut auf einem Formband im Zuge der Herstellung von Werkstoffplatten
EP2626179B1 (en) * 2012-02-09 2015-05-13 IKEA Supply AG Apparatus and method for scattering particles in a particle board production
FI125435B (fi) * 2013-12-20 2015-10-15 Dieffenbacher Panelboard Oy Menetelmä ja laitteisto kuitujen, kuten lastujen sirottelemiseksi
DE102015112013A1 (de) * 2015-07-23 2017-01-26 Siempelkamp Maschinen- Und Anlagenbau Gmbh Windstreuvorrichtung
DE102017124063A1 (de) * 2017-10-16 2019-04-18 Dieffenbacher GmbH Maschinen- und Anlagenbau Streuanlage und Verfahren zur Herstellung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten
CN109719827A (zh) * 2019-02-26 2019-05-07 台山市诚联工艺制品有限公司 一种流水线式的椰棕垫自动生产系统
DE102020103233A1 (de) 2020-02-07 2021-08-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Windstreukammer und Verfahren zum Streuen und Formen eines rieselfähigen Materials auf einem Formband

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021939A1 (de) * 1990-07-10 1992-01-16 Siempelkamp Gmbh & Co Streuanlage zum streuen von spanplatten-rohmaterial
DE4212001A1 (de) * 1992-04-09 1993-10-14 Baehre & Greten Deckschichtstreuvorrichtung
DE4439653A1 (de) * 1994-11-07 1996-05-09 Baehre & Greten Vorrichtung zum Streuen von beleimten Spänen, Fasern und dergleichen Teilchen
EP0800901B1 (de) * 1996-04-10 2003-07-02 Dieffenbacher Schenck Panel GmbH Verfahren zur Herstellung eines Vlieses und Vorrichtung
AU740967B2 (en) * 1997-04-17 2001-11-15 Kvaerner Panel Systems Gmbh Maschinen- Und Anlagenbau Device for fractionating and scattering specially fibrous particles
AU3138799A (en) * 1998-04-21 1999-11-08 Elmgaard Birger Sorensen Sifting net for a fibre distributor
DE19835419A1 (de) * 1998-08-05 2000-02-10 Kvaerner Panel Sys Gmbh Vorrichtung und Verfahren zur Windsichtung
DE19858096A1 (de) * 1998-12-16 2000-06-21 Timberex Timber Exports Ltd Vorrichtung und Verfahren zum Streuen von Teilchen zu einem Vlies
DE10163054B4 (de) * 2001-12-21 2004-01-08 G. Siempelkamp Gmbh & Co. Streugutanlage zum Streuen von Streugut, insbesondere beleimten Holzspänen, Holzfasern oder dergleichen, auf einen Streubandförderer
DE10206595A1 (de) * 2002-02-15 2003-08-28 Dieffenbacher Gmbh Maschf Streustation zum homogenen Streuen von beleimten Streugütern insbesondere Holzspänen
FI117129B (fi) * 2004-05-19 2006-06-30 Metso Panelboard Oy Menetelmä ja laitteisto lastujen sirottelemiseksi

Also Published As

Publication number Publication date
EP1889702A3 (de) 2009-08-12
PL1889702T3 (pl) 2012-06-29
EP1889702A2 (de) 2008-02-20
CN101186049B (zh) 2012-08-22
ATE540793T1 (de) 2012-01-15
DE102006038183A1 (de) 2008-02-21
CN101186049A (zh) 2008-05-28

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