EP1442857B1 - 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
EP1442857B1
EP1442857B1 EP20040001530 EP04001530A EP1442857B1 EP 1442857 B1 EP1442857 B1 EP 1442857B1 EP 20040001530 EP20040001530 EP 20040001530 EP 04001530 A EP04001530 A EP 04001530A EP 1442857 B1 EP1442857 B1 EP 1442857B1
Authority
EP
European Patent Office
Prior art keywords
glued
spreading
rollers
wall elements
spread
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 - Fee Related
Application number
EP20040001530
Other languages
German (de)
English (en)
Other versions
EP1442857A2 (fr
EP1442857A3 (fr
Inventor
Hans-Joachim Schreiber
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 EP1442857A2 publication Critical patent/EP1442857A2/fr
Publication of EP1442857A3 publication Critical patent/EP1442857A3/fr
Application granted granted Critical
Publication of EP1442857B1 publication Critical patent/EP1442857B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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 patent claim 1, see. to the DE-A-10053129 ,
  • Fiber opening rollers used to dissolve the fiber bales described above, as well as to break the fiber / glue nodes so-called Fiber opening rollers used. These are usually arranged between the Austragswalzenanowski the Dosierbunkers and the scattering head assembly.
  • Fiber opening rollers usually consist of 1 or 2 pairs of opening rollers, which rotate in opposite directions at very high speeds of 800 - 2000 revolutions per minute.
  • rotating disk rollers or spiked rollers which have rows arranged on the circumference spike, which engage between the spiked rows of the opposite roller.
  • the material flow is in this case driven by the gap formed between the spines.
  • 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. Also in this known device, the material flow is driven through the gap formed between the opening rollers.
  • 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, wherein the scattering in particular an uncontrolled redistribution of the material to be spread in the transverse direction. should be avoided.
  • the material flow is driven after discharge from the dosing hopper through the rotating at very high speed and provided with release elements Auflensewalzenan Aunt. As a result, fiber bales are dissolved and smash fiber / glue nodes.
  • the material flow is catapulted with high kinetic energy into the calming chambers of the calming compartment.
  • the existing air streams together with the fibers of the stream are now directed down into the settling chambers. Although turbulences may continue to form in the individual calming chambers, due to the spatial limitation it is prevented that a significant redistribution of the material flow in the transverse direction can occur.
  • the material stream is fed directly onto a spreading roller arrangement arranged underneath, which spreads the material stream onto a forming belt running continuously below it.
  • Fig. 1 1 schematically shows a forming station 1 with dosing bunker 2, an opening roller arrangement 3, a calming fan 4, a spreading head arrangement 5 and a forming belt 6, onto which the material web 7 is sprinkled from glued fibers.
  • the material stream which preferably consists of glued fibers, is temporarily stored and distributed to an intended discharge width.
  • lignocellulosic particles of different sizes such as fibers, chips and the like are provided in the first place.
  • wood chips or wood fibers are used, which are discharged continuously with the aid of a bottom belt 8 and a Austragswalzenan Aunt 9 from the dosing bunker 2.
  • the dosing bunker 2 has a width which corresponds at least to the maximum plate width that is to be produced on the system.
  • the glued fibers are fed via the Austragswalzenan Aunt 9 of the dosing bunker 2 on the opening roller assembly 3, which consists of two counter-rotating rollers 10 driven.
  • the rollers 10 are, as can be seen from the illustration, arranged parallel to the axis in a horizontal plane next to each other.
  • rollers are equipped with spines or teeth.
  • rollers 10 are used, which in the DE 100 53 129 A1 are described in more detail.
  • the flow of glued fibers is forced through the narrow gap formed between the spines or teeth, thereby achieving fiber disintegration of fiber / sizing lumps.
  • the dissolved material stream is thrown after the opening roller assembly 3 in a immediately downstream arranged sedation 4.
  • the calming compartment 4 consists of a housing part in which a plurality of parallel wall elements 11 are arranged.
  • the wall elements 11 are preferably designed as sheets aligned longitudinally to the conveying direction of the forming belt 6 and subdivide the casing part into a plurality of settling chambers 12.
  • These settling chambers 12 formed between two wall elements 11 have a width B of 50 to 500 mm, preferably 150 mm (FIG. Fig. 2 ).
  • the wall elements 11 are formed at their upper, the opening rollers 10 facing region 13, each semicircular, the contour of the opening rollers 10 corresponding recessed.
  • the wall elements 11 can be arranged immediately following the opening roller assembly 3 and there remains only a small gap between rollers 10 and the upper edge of the wall elements 11 of the reassurance fan 4.
  • no fibers can be deposited on the upper edge of the wall elements 11 and a fiber - / Leimknoten Struktur can be prevented.
  • the wall elements 11 protrude from the opening roller assembly 3 in the vertical direction to just above the scattering roller assembly fifth
  • the material flow forced through the opening roller arrangement 3 is catapulted into the calming chambers 12 of the calming compartment 4 with high kinetic energy.
  • the existing air streams together with the fibers are now called partial streams passed down in the calming chambers 12.
  • turbulence in the individual calming chambers 12 may continue to arise, due to the spatial limitation, however, it is prevented that a significant redistribution of the material flow in the transverse direction can occur.
  • the scattering roll arrangement 5 consists of a plurality of scattering rolls arranged parallel and transversely to the conveying direction.
  • the spreader rollers are arranged along the conveying direction in a horizontal rising line to ensure a uniform dispersion and a height limit.
  • the scattering rollers are provided immediately below the calming fan 4 and promote the flowable goods, preferably the glued wood fibers against the conveying direction. By the rotation of the scattering rollers, the wood fibers are simultaneously sprinkled onto the continuously running under mold belt 6 as a non-woven fabric and fed to a subsequent pre-press station or a plate press.
  • an additional conveying device could also be provided following the calming compartments, which feeds the stream of glued fibers to a spreading head arrangement 5.
  • the additional conveying device is designed as a weighfeeder, which continuously promotes a controllable flow rate in the spreading head assembly, so that depending on the plate thickness and width of the scattering head assembly a predetermined amount is strewn on the forming belt.

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)
  • Nonwoven Fabrics (AREA)

Claims (3)

  1. Dispositif permettant l'épandage de matériaux encollés, en particulier de matières fibreuses et de particules au cours du processus de fabrication de panneaux de particules de bois, au moyen d'une trémie doseuse pour l'épandage des matériaux encollés sur un dispositif de dispersion à cylindres, comprenant non moins de deux cylindres à éléments de dispersion adjacents, tournant en des sens opposés, ainsi que d'un dispositif de rouleaux d'épandage disposés en aval, permettant de répartir le matériau en une bande de formage, caractérisé en ce qu'un éventail tranquilliseur (4) est disposé immédiatement à la suite des rouleaux de dispersion (3) comprenant plusieurs panneaux (11) disposés l'un près de l'autre et s'étendant dans le sens du convoyage, les panneaux (11) formant une grand nombre de cellules à effet tranquilliseur (12).
  2. Dispositif permettant l'épandage de matériaux encollés selon la revendication de brevet 1, les panneaux (11) étant espacés de 50 - 500 mm, de préférence de 150 mm.
  3. Dispositif permettant l'épandage de matériaux encollés selon la revendication de brevet 1 ou 2, un convoyeur à bascule de bande doseuse étant installée entre l'éventail tranquilliseur (4) et le dispositif de rouleaux de dispersion (5).
EP20040001530 2003-02-03 2004-01-24 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu Expired - Fee Related EP1442857B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10304134 2003-02-03
DE2003104134 DE10304134A1 (de) 2003-02-03 2003-02-03 Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage

Publications (3)

Publication Number Publication Date
EP1442857A2 EP1442857A2 (fr) 2004-08-04
EP1442857A3 EP1442857A3 (fr) 2005-07-06
EP1442857B1 true EP1442857B1 (fr) 2010-03-17

Family

ID=32603103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040001530 Expired - Fee Related EP1442857B1 (fr) 2003-02-03 2004-01-24 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu

Country Status (2)

Country Link
EP (1) EP1442857B1 (fr)
DE (2) DE10304134A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128872A3 (fr) * 2014-02-27 2015-11-12 Nanopix Integrated Software Solutions Private Limited Machine améliorée permettant de classer des objets irréguliers de petite taille et procédé associé

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
CN102303786B (zh) * 2011-06-20 2013-10-30 山东莱芜煤矿机械有限公司 全自动智能平车降高系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
US4469216A (en) * 1982-04-05 1984-09-04 Board Of Control Of Michigan Technological University Multiple funnel flake aligner for making a loosely felted mat of aligned wood flakes
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
DE19916447A1 (de) * 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Formstation
DE10053129A1 (de) * 2000-10-26 2002-05-08 Dieffenbacher Schenck Panel Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015128872A3 (fr) * 2014-02-27 2015-11-12 Nanopix Integrated Software Solutions Private Limited Machine améliorée permettant de classer des objets irréguliers de petite taille et procédé associé

Also Published As

Publication number Publication date
DE502004010893D1 (de) 2010-04-29
EP1442857A2 (fr) 2004-08-04
EP1442857A3 (fr) 2005-07-06
DE10304134A1 (de) 2004-08-05

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