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WO2011063966A1 - Installation et procédé de formage d'une nappe de matériau de dispersion sur une bande de formage lors de la fabrication de plaques de matériau - Google Patents

Installation et procédé de formage d'une nappe de matériau de dispersion sur une bande de formage lors de la fabrication de plaques de matériau Download PDF

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Publication number
WO2011063966A1
WO2011063966A1 PCT/EP2010/007171 EP2010007171W WO2011063966A1 WO 2011063966 A1 WO2011063966 A1 WO 2011063966A1 EP 2010007171 W EP2010007171 W EP 2010007171W WO 2011063966 A1 WO2011063966 A1 WO 2011063966A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
shaft
grit
chute
compensating
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.)
Ceased
Application number
PCT/EP2010/007171
Other languages
German (de)
English (en)
Inventor
Gernot 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 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
Priority to CN201080062207.1A priority Critical patent/CN102770250B/zh
Priority to EP10784710.5A priority patent/EP2504135B1/fr
Priority to PL10784710T priority patent/PL2504135T3/pl
Publication of WO2011063966A1 publication Critical patent/WO2011063966A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 system for forming a grit mat from free-flowing material on a forming belt in the course of the production of material plates according to the preamble of claim 1 and a method for forming a grit mat from grit on a
  • Forming tape according to the preamble of claim 11.
  • material plates MDF, LDF, HDF
  • MDF, LDF, HDF material plates
  • the compression of processed chips or fibers takes place either clock-bound or continuously.
  • the production of a spreading material mat by means of spreading machines plays an outstanding role, since the quality of the produced spreading material mat is an important factor in addition to the quality of the raw materials.
  • From DE 103 04 147 A1 discloses a device for spreading of grit on a continuously moving forming belt has become known. In this
  • Discharge hopper by means of an array of opening rollers to ensure a reasonably even distribution and complete resolution of coagulation across the width. After a task flap or directly from the dosing hopper, the dissolved chips fall on a scattering roller assembly and are there scattered over several scattering rollers on the continuously moving forming belt to form a grit mat.
  • the device according to this disclosure has proven itself in principle and has made possible across the width
  • Scattering device provides a chute in which distributed over the width of the air flow distributing the spreading material distribution in a first wall of the chute distributed over the wall width adjustable air supply means are provided with in one opposite second wall one or more adjustable Beerabloom painen.
  • a basis weight profile can be set transversely to the production direction, for example in such a way that during the later division of the material plates after pressing, a separating cut is preferably made in the higher basis weight ranges, so that the cross sections also result in a higher edge density on the divided plates ,
  • the object of the invention is to provide a method and a system, at least consisting of a forming belt, an overlying scattering device and an associated metering device, in which the scattering quality influencing air flows respectively
  • the solution for the system according to claim 1 is that the
  • Scattering device is arranged operatively connected, that is arranged to form a substantially circular flow of air, the output-side opening of the compensation air shaft with the metering device and / or with the chute substantially operatively connected input side and
  • the solution for the method is that excess and / or accelerated by the grit air from the chute and / or the spreader integrated or separately added to the chute by means of an input-side opening of a compensation air duct, the output shaft with the chute and / or is operatively connected to the spreader,
  • the outlet-side opening of the compensation air shaft feeds the air to the metering device and / or substantially on the input side to the chute passes and
  • Guiding means is controlled or regulated in order to influence or adjust the basis weight profile over the width and / or in the production direction.
  • Compensating air shaft to relax An active suction can be dispensed with in an advantageous manner, which also avoids an otherwise necessary filtering of the extracted air, as this is easily returned to the production cycle. On the merits, it is nevertheless the case that in some cases an air exchange takes place in the entire system with the environment. Should this be due to the resulting
  • the air returned in the compensation shaft can be replaced evenly or at regular intervals with fresh ambient air.
  • the used air and possibly with fine dust and / or binder contaminated air in a thermal converter is aftertreated and cleaned.
  • the downcomer respectively the equalizing air duct has an inlet and an outlet end or opening, wherein the terms on the inlet and outlet side refer to the fluids conveyed therein / moved and / or
  • Material here grit
  • the input-side end of the chute with the metering device and the output end of the chute is connected to the spreader.
  • the inlet-side opening of the compensation air shaft with the scattering device is then preferably arranged substantially adjacent to or adjacent to the outlet-side opening of the chute.
  • adjacent is to be understood that the input-side opening of the compensation air duct is located directly on the output side opening of the chute, adjacent would be understood an unspecified distance between the two openings, the excess air or any air accumulation still occurring the Tendency to escape into the compensation air duct instead of wandering in the direction of the forming belt in the scattering device.
  • Compensation duct guide means for controlling the flow of air to be arranged. These can be active and / or passive for the control of the air, wherein as active guide means fans or injection nozzles for the air in question and / or as a passive guide
  • At least one guide means should be arranged to be movable by means of an adjusting device, preferably for changing the position and / or the area of action in the compensation air shaft.
  • at least in part of the compensation air shaft at least one partition wall is arranged across the width of the forming belt and / or in the production direction of the forming belt for dividing the cross section of the compensation air shaft.
  • Balancing air ducts may be arranged.
  • the partition should be arranged to be movable by means of at least one adjusting device, preferably substantially transversely to the production direction.
  • one or more partitions at least partially divide the compensation air duct into partial air ducts, wherein essentially the partial air ducts
  • Partial air shaft are arranged. It is also conceivable that at least parts of the compensation air shaft with a larger cross section than the chute and / or that to change the cross section of the
  • Adjusting device is arranged.
  • the larger cross-section is preferably arranged on the input-side opening of the compensation air shaft, so that the excess air due to the flow gradient preferably evades into the compensation air shaft.
  • For entrained grit or dust may be in the balance shaft at least one
  • Separating device may be arranged.
  • the compensation air shaft is substantially parallel to the chute.
  • Figure 1 is a schematic side view of a system for forming a
  • Grit mat from spreading material on a forming belt in the course of the production of material plates by means of a in
  • the metering device is arranged as a dosing bunker with a discharge device above a spreader and a chute with an associated compensation duct connects these two parts of the plant,
  • Figure 2 shows a possible variant of the arrangement of a
  • Figure 3 shows another possible variant of the arrangement of a
  • Figure 4 is a sectional plan view through a chute and the associated compensation air shaft of Figure 1 with representation of a conceivable setting of the air currents for setting a basis weight profile across the width of the forming belt
  • Figure 5 is a vertical section across the width of a manufactured
  • FIG. 6 shows a sectioned section of Figure 1 with representation of a guide means for influencing the flow of air in the compensation air shaft.
  • Figure 1 shows a schematic side view of a system for forming a grit mat 25 from free-flowing material 1 on a forming belt 10 in the course of the production of material plates by means of a in
  • the dosing device 2 is designed as a dosing bunker with a discharge device above the spreader 3.
  • the dosing bunker has on the input side at least one side wall 22 and a backscrap rake 21 above a bottom belt 19, which sweeps back the grit 1 entering the dosing hopper on the bottom belt 19 to a Schüttberg.
  • the Schüttberg from spreading material 1 is controlled by means of the bottom belt 19 against the discharge device, here discharge rollers 20, moved and it is thus achieved a uniform discharge of the material to be spread 1 in the chute 4.
  • the discharge rollers 20 are usually designed as spiked rollers and loosen the grit 1 in addition.
  • Chute 4 and spreading device 3 the side wall 28 forms not only a part of the chute 4 but also a side wall 28 of the spreader 3.
  • Spreader rollers 24 pass through in parts and then even during the fall of the grit 1 in the direction of fall 11 on the forming belt 10 to shifts the grit 1 in or across the Production direction 23 and thus within the grit mat 25.
  • This air accumulation or turbulence usually occur irregularly or periodically and significantly reduce the quality of the scattering of the scattering device 3.
  • Excess air 5 makes it possible to take the path of the least resistance and can change over to the compensation air shaft 6.
  • the cross section of the chute 4 and / or the compensation air shaft 6 can now at least partially by means of suitable adjusting devices to the
  • the side wall 28 can be moved by the not shown in detail and stylized by means of a double arrow actuator 30 to change the cross section of the chute 4. Also one
  • Austicians Kunststoffschachtes 6 by means of at least one adjusting device 17th be arranged at least partially movable.
  • the output-side opening 15 of the compensation air shaft 6 is here above the discharge, respectively the discharge rollers 20, arranged on the metering device 2 and transfers the excess air 5 back towards the chute 4 to the metering device 2. This allows a circular circulation flow through their
  • Scattering device 3 is arranged, wherein the essential system parts are designed as shown in FIG.
  • the compensation air duct 6, however, is arranged on the output side to the chute 4, wherein the opening 31 of the compensation air duct 6 partially overlaps with the chute 4 and partially with the spreader 3.
  • a circular circulation of the air 5 is possible if it is introduced directly at the opening 26 on the side wall 22 in the metering device 2.
  • a separator 39 for dust or grit 1 In particular, in the direction of fall 11 angled Ausretes KunststoffDecision 6, it is advisable to arrange a separator 39 for dust or grit 1.
  • 6 adjusting devices 17 are arranged on the side wall 14 and the movement of the side wall 28 of the chute 4 actuators 30 again to the cross-sectional change of the compensation air shaft.
  • the basis weight distribution of the material to be spread already be influenced in the metering device 2 itself.
  • the basis weight distribution by means of the guide means it is explained in greater detail with reference to FIG. 4ff.
  • Figure 3 shows yet another possible variant of the arrangement of a preferably adjacent to the chute 4 or integrated
  • Chute 4 is in this case carried out via the opening 32, which is arranged directly on the input side of the chute 4.
  • the opening 32 and the transition to the chute 4 can also be on the Venturi principle, a negative pressure in
  • Balancing duct 6 are set when the grit 1 in Fall direction 11 falls past this opening 32 while air 5 pulls out of the opening 32 out.
  • Figure 4 shows a sectional plan view through a chute 4 and the associated compensation air shaft 6 of Figure 1 with representation of several possible adjustment options of air flows through guide means for setting a basis weight profile across the width 36 of the forming belt 10.
  • the proposed compensation air shaft 6 has for this purpose at least partially partitions 40th as a guide means, which may optionally be movable by means of suitable adjusting devices 41. This can be used, for example, to set the partitions 40 to one another, to move (parallel), in or out of the
  • Partial shafts are arranged guide means 8, which can change the cross section targeted across the width 36.
  • guide means 8 which can change the cross section targeted across the width 36.
  • retracted guide means 8 is more obstructed than in the inner part shafts. This is particularly indicated by the marked areas of action 38 of the guide means 8 on the cross section 7 of the compensation air shaft 6.
  • This obstruction of the air is achieved that seen over the width 36 in the middle of an oversupply of air 5 during the passage of air from the opening 5 occurs in the chute 4.
  • FIG. 5 illustrates the effect of this transverse flow 34, through which more or less spreading material 1 is reinforced in the direction of the flow
  • Fittings for furniture to be installed or attached or edge banding should be applied. Also results in the further handling of a more robust plate, which is particularly advantageous for large format plates to the division. It is known to those skilled in the art that despite the different height of the incoming grit mat in the press a uniformly thick material plate is produced, which may have a higher density on the outside.
  • these surface weight shifts can also be carried out the other way round or these surface weight shifts can be used to correct and compensate scattering errors caused by the metering device and / or the scattering device itself.
  • FIG. 6 shows a sectioned and enlarged partial detail according to FIG. 1, showing a guide means 8 for influencing the flow of the air 5 in the compensation air shaft 6.
  • the guide means 8 can be moved in the compensation air shaft 6 by means of the adjusting device.
  • the entering area of action 38 shows the obstruction of the air 5 or the flow velocity or the flow volume, represented with the two arrows of different size for the air. 5
  • the partial air shafts or the partitions at a distance of 200 to 500 mm from each other.
  • the chute should, depending on the particle size, preferably at DF, be 100 to 300 mm long in the direction of production.
  • the compensation air duct is preferably 200 to 700 mm long in the production direction.
  • the (total) width of the air ducts is preferably always as wide as the scatter or the

Landscapes

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

Abstract

L'invention concerne une installation et un procédé de formage d'une nappe de matériau de dispersion (1) sur une bande de formage (10) lors de la fabrication de plaques de matériau au moyen de pression et/ou de chaleur dans une presse, un dispositif de dispersion (3) étant monté au-dessus de la bande de formage (10) dans le sens de la chute (11) et un dispositif de dosage (2) étant disposé en amont du dispositif de dispersion (3) dans le sens de la chute (11) pour alimenter le dispositif de dispersion (3) en matériau de dispersion (1), une cheminée verticale (4) intermédiaire reliant ces deux dispositifs pour le transport du matériau de dispersion (1). Selon l'invention, un évent de compensation (6) est monté de manière intégrée ou séparée de la cheminée verticale (4), cet évent étant destiné à recevoir l'air (5) superflu et/ou envoyé à travers le matériau de dispersion (1) et sortant de la cheminée verticale (4) et/ou du dispositif de dispersion (3), l'ouverture (16,31) côté entrée de l'évent de compensation (6) est en liaison active avec la cheminée verticale (4) sensiblement côté sortie et/ou avec le dispositif de dispersion (3), l'ouverture (15,26,32) côté sortie de l'évent de compensation (6) est en liaison active avec le dispositif de dosage (2) et/ou avec la cheminée verticale (4) sensiblement côté entrée pour former un écoulement sensiblement circulaire de l'air (5), et des moyens de guidage (8) sont disposés dans l'évent de compensation (6) pour guider l'écoulement de l'air (5).
PCT/EP2010/007171 2009-11-25 2010-11-25 Installation et procédé de formage d'une nappe de matériau de dispersion sur une bande de formage lors de la fabrication de plaques de matériau Ceased WO2011063966A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080062207.1A CN102770250B (zh) 2009-11-25 2010-11-25 用于在生产材料板过程中在成型带上形成由散布材料制成的散布材料垫的设备和方法
EP10784710.5A EP2504135B1 (fr) 2009-11-25 2010-11-25 Installation et procédé de formage d'une nappe de matériau de dispersion sur une bande de formage lors de la fabrication de plaques de matériau
PL10784710T PL2504135T3 (pl) 2009-11-25 2010-11-25 Instalacja i sposób formowania maty nasypowej z materiału nasypowego na taśmie formującej w trakcie wytwarzania płyt materiałowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047125A DE102009047125A1 (de) 2009-11-25 2009-11-25 Anlage und Verfahren zur Formung einer Streugutmatte aus Streugut auf einem Formband im Zuge der Herstellung von Werkstoffplatten
DE102009047125.1 2009-11-25

Publications (1)

Publication Number Publication Date
WO2011063966A1 true WO2011063966A1 (fr) 2011-06-03

Family

ID=43585566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/007171 Ceased WO2011063966A1 (fr) 2009-11-25 2010-11-25 Installation et procédé de formage d'une nappe de matériau de dispersion sur une bande de formage lors de la fabrication de plaques de matériau

Country Status (5)

Country Link
EP (1) EP2504135B1 (fr)
CN (1) CN102770250B (fr)
DE (1) DE102009047125A1 (fr)
PL (1) PL2504135T3 (fr)
WO (1) WO2011063966A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10128270B2 (en) 2013-06-27 2018-11-13 Mitsubishi Electric Corporation Active matrix substrate and manufacturing method of the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913991C2 (de) 1989-04-27 1997-01-16 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
DE10018218A1 (de) * 1999-04-12 2001-10-25 Dieffenbacher Schenck Panel Formstation
DE10304147A1 (de) 2003-02-03 2004-08-05 Dieffenbacher Gmbh + Co. Kg Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage sowie Bunker für die Vorrichtung zum Streuen von Streugut
DE102005022746A1 (de) * 2004-05-19 2005-12-15 Metso Panelboard Oy Verfahren und Anlage zum Aufstreuen von Spänen
DE102006030122B4 (de) 2006-06-28 2008-05-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streugutanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524816C2 (sv) * 2003-02-17 2004-10-05 Metso Paper Sundsvall Ab Förfarande och anordning för formning av en matta av material
FI20060437A7 (fi) * 2006-05-05 2007-11-06 Metso Panelboard Oy Laitteisto kuitujen, kuten lastujen sirottelemiseksi
DE102006038183A1 (de) * 2006-08-14 2008-02-21 Dieffenbacher Gmbh + Co. Kg Verfahren und Streumaschine zur vollständigen oder schichtweisen Herstellung einer Streugutmatte
FI122575B (fi) * 2006-12-04 2012-03-30 Dieffenbacher Panelboard Oy Laitteisto kuitujen, kuten lastujen sirottelemiseksi
DE102008039466A1 (de) * 2008-08-25 2010-03-04 Dieffenbacher Gmbh + Co. Kg Verfahren und Streustation zur Herstellung einer Streugutmatte aus rieselfähigem Streugut im Zuge der Herstellung von Holzwerkstoffplatten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913991C2 (de) 1989-04-27 1997-01-16 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
DE10018218A1 (de) * 1999-04-12 2001-10-25 Dieffenbacher Schenck Panel Formstation
DE10304147A1 (de) 2003-02-03 2004-08-05 Dieffenbacher Gmbh + Co. Kg Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage sowie Bunker für die Vorrichtung zum Streuen von Streugut
DE102005022746A1 (de) * 2004-05-19 2005-12-15 Metso Panelboard Oy Verfahren und Anlage zum Aufstreuen von Spänen
DE102006030122B4 (de) 2006-06-28 2008-05-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streugutanlage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10128270B2 (en) 2013-06-27 2018-11-13 Mitsubishi Electric Corporation Active matrix substrate and manufacturing method of the same

Also Published As

Publication number Publication date
CN102770250A (zh) 2012-11-07
PL2504135T3 (pl) 2014-03-31
CN102770250B (zh) 2015-05-06
EP2504135A1 (fr) 2012-10-03
DE102009047125A1 (de) 2011-05-26
EP2504135B1 (fr) 2013-10-02

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