EP1231039A2 - Dispositif de distribution à rouleaux pour la formation de toiles de copeaux - Google Patents

Dispositif de distribution à rouleaux pour la formation de toiles de copeaux Download PDF

Info

Publication number
EP1231039A2
EP1231039A2 EP20020002585 EP02002585A EP1231039A2 EP 1231039 A2 EP1231039 A2 EP 1231039A2 EP 20020002585 EP20020002585 EP 20020002585 EP 02002585 A EP02002585 A EP 02002585A EP 1231039 A2 EP1231039 A2 EP 1231039A2
Authority
EP
European Patent Office
Prior art keywords
scattering
spreading
walls
rollers
head according
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.)
Withdrawn
Application number
EP20020002585
Other languages
German (de)
English (en)
Inventor
Matthias Graf
Lutz Wolf
Walter Henschel
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 Schenck Panel GmbH
Original Assignee
Dieffenbacher Schenck Panel GmbH
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 Schenck Panel GmbH filed Critical Dieffenbacher Schenck Panel GmbH
Publication of EP1231039A2 publication Critical patent/EP1231039A2/fr
Withdrawn legal-status Critical Current

Links

Images

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

  • a spreading head for the production of material boards from wood chips, Wood fibers, wood chips or others with binders offset lignocellulosic materials among other things from a spreader roller arrangement to which a Material flow is abandoned from a dosing bunker and then to a fleece underneath is scattered.
  • To limit the side of the scattered To achieve fleece are usually side walls intended.
  • the scattering walls to be arranged laterally adjustable in width.
  • the side walls are provided with openings through which the device parts can slide through. Rubber sleeves are used as a sealant intended.
  • Another scattering station is known from DE 71 37 773, with which chip fleece of different widths are scattered can.
  • width adjustable are already in the dosing bunker Guiding pieces are provided with which the preliminary fleece in the desired width can be preset. Furthermore are adjustable to adjust the corresponding width of the fleece Side parts arranged in the spreading chamber.
  • a spreading head arrangement is known from DE 28 51 779, where several disc rollers in one angle adjustable Disc roller frames are arranged.
  • the disc roller frame is for this purpose at its lower end with joint arrangements stored and in the area of its upper end with a Discharge angle actuator provided. Because of the angle adjustability chip mats can be sprinkled on the spreading head, the layers have different chip orientation.
  • the object of the present invention is a scattering head of this type to further educate that it is used as versatile as possible can be, i.e. for the production of wood-based panels different dimensions can be used.
  • the object of the present invention is achieved in that that with the angularly adjustable spreader roller arrangement connected scattering walls follow the change in angle.
  • the present invention uses the knowledge that to achieve of a good spreading result, the height of the fall to be spread Materials, i.e. the distance of the spreading rollers to the one below Form tape or to the nonwoven surface if possible must be kept low. So with one from the state of the Technology known rigid spreading head different plate thicknesses can be produced and the drop height is low, the angle of the spreading head to the forming belt must be appropriate the maximum plate thickness can be arranged quite steep. ever after the plate thickness to be produced is then the rigid Spreading head to achieve the lowest possible fall height Spreader roller speed set. This means that material to be scattered more or depending on the speed less spread the spreader roller assembly upwards becomes. This principle has the consequence in the prior art that only the lowest are used in the production of thin plates Spreading rollers can use. However, since the spread rate is independent of the fleece thickness remains approximately constant, then much more fibers are discharged per spreader roller, what can lead to a worsening of the spreading result.
  • the spreading head becomes dependent in its angular position the fleece thickness to be produced, so that the spreader roller that is the greatest vertical distance from that Formband has, is located just above the fleece.
  • All spreading roller material is discharged and it will be a good one Scattering result achieved.
  • Due to the arrangement of the scattering walls, the follow the change in angle, the spreading space is sealed at all times, so that no fibers, chips or the like outside of the spreading area.
  • at a defined spreading width for each angular position of the spreading head arrangement guaranteed by the spreading walls.
  • the spreading head according to a preferred Design of different widths of wood-based panels be produced, as the spreading walls are additionally adjusted in width can be.
  • the spreading head can be used in many ways, because the spreading head independently of each other in the spreading width, as well can also be set at any angle.
  • the telescopic elements of the Scattering walls in the profile for example, U-shaped or L-shaped his.
  • the object of the present invention is achieved by another Design variant solved in that the spreading head is adjustable in width is formed, the through holes for the spreading rollers are sealed in the side spreading walls.
  • This design variant can be of any width Wood-based panels are made using a simple The spreading walls can be adjusted in width and at any time a seal is guaranteed. By designing the Seals cannot contain any fibers, chips or the like get outside the spreading area.
  • the spreading head independently both in the spreading width as well as the spreading height to the required Dimensions can be adjusted. This can be done at any time made a high quality wood-based panel with the least possible use of materials is required.
  • the object of the present invention is achieved by another Design variant according to claim 20 solved in that that the spreading head arrangement is both angle adjustable as well is adjustable in width.
  • the spreading head can thus be dependent on its angular position the fleece thickness to be produced can be adjusted so that the spreader roller that is the greatest vertical distance from that Formband has, is located just above the fleece. By this arrangement will be spread over with each fleece thickness All spreading roller material is discharged and it will be a good one Scattering result achieved. Furthermore, the spreading head can be different wide wood-based panels are produced, because the spreading walls can also be adjusted in width. This embodiment makes it possible for the spreading head can be used in a variety of ways because the spreading head is independent from each other in the spread, as well as in any Angle can be adjusted.
  • 1a and 1b are each schematically a molding station with a dosing hopper 1, which has a discharge roller arrangement 2 has feed flaps 3, 3 ', a spreading head arrangement 4 Forming belt 5, and a leveling roller E shown.
  • the forming station becomes different for the production of plates Dimension from lignocellulosic and / or cellulosic Particles of different sizes, such as fibers, chips and the like used.
  • Fig. 1a the molding station is after the prior art in the production of relatively thin Wood-based panels shown.
  • Fig. 1b shows the situation the molding station according to the state of the art in production of thick wood-based panels. 1a and 1b from the metering bunker 1, for example, glued fibers Material flow discharged through the discharge roller assembly 2. The Material flow falls on a first feed flap 3, and then to a second feed flap located underneath and then hits the scatter head assembly 4. By the scattering head arrangement 4 turns the material flow into a fleece sprinkled on a continuously running forming belt.
  • the Scattering head arrangement 4 has a fixed angle ⁇ in relation on the forming belt 5.
  • the lowest possible head between spreading rollers and To achieve the fleece surface is the speed of the spreading rollers adjusted so that only the lowest spreader rollers can be used to spread the fleece. As shown in Fig. 1a can be seen, the ascending order remains Spreading rollers unused.
  • Fig. 1b in which the situation of manufacturing thick Wood-based panels are shown, the speed of the spreader rollers set so that the material flow the entire Spreading roller arrangement is transported upwards and thus all spreading rollers can be used to spread the fleece.
  • FIG. 2 shows a molding station, which is an embodiment variant of the scattering head 6 according to the invention schematically shows.
  • Fig. 2 can see here is the angle ⁇ depending on what is to be produced Fleece adjusted so that all spreader rollers 7 of the spreading head 6 in the production of thin wood-based panels can be used to scatter the material flow and the distance of the spreader roller that is the largest vertical distance to the underlying fleece surface 8, low is.
  • the spreading head consists of a large number of side by side arranged spreader rollers 7 on both sides in a rocker arm 9 are arranged rotatably.
  • the schematic Drawing shows only a section of one side of the Stray head, however, it goes without saying that on the opposite such a scattering wall on the right arranged to limit the side of the scattered fleece is.
  • the lateral scatter walls 10 each consist of one upper and lower spreading wall 10 ', 10 ".
  • the lower spreading wall 10 ' extends from the spreader rollers 7 to the forming belt 5 and thus seals the entire side area below the spreader rollers 7.
  • the scatter walls consist of how it is made of Fig.
  • elongated elements 11 the fan-shaped starting from the forming belt 5 closest spreading roller 7 to that of the forming belt 5 furthest remotely arranged spreader roller 7.
  • the elongated Elements 11 are U-shaped in profile and are telescopically interconnected. It however, any other profile elements can also be used become.
  • Upper and lower scatter wall 10 ', 10' ' are each with of their sides facing the spreader rollers 7 with an inner one Swing arm 12 connected so that the upper and lower scattering wall 10 ', 10' 'must follow a pivoting movement of the rocker 12.
  • the inner rocker 12 has through holes 13 through which the spreading rollers 7 are each carried out.
  • first and second actuator 15 can, as indicated by arrows 16 is shown, a component of motion in horizontal Transfer direction to the scattering walls 10 ', 10' ', so that a Width adjustment of the spreading walls 10 ', 10' 'is possible. Consequently wood-based panels of any width can be produced, this means an exact page limit at all times is achieved in the spreading of the fleece.
  • First and second Actuator 15 are arranged on angle elements 17, which in turn fixed to a fixed outer scatter wall 18 are.
  • a third actuator 19 is arranged which pivots can be transferred to the rocker arm 9 and thus an angle adjustment of the angle ⁇ of the spreading head 6 is made possible.
  • the angular adjustability of the spreading head 6 is here the arrow 20 shown.
  • a further actuator can be provided by transmit a motion component in the vertical direction can be so that the spreading head is also adjustable in height.
  • Fig. 5 shows a further embodiment variant of an inventive Scattering head in a side view.
  • the design 5 differs from that in FIG. 3 and Fig. 4 embodiment shown in that not all Spreading rollers of the spreading head can be adjusted in angle via the bearing rocker 9 are arranged. With this spreading head they are three spreading rollers 7 'arranged closest to the forming belt 5 fixed and the other spreader rollers, which in the bearing rocker 9, not shown, stored and by the inner rocker 12 are carried out together around a Axis of rotation A, rising through the central axis of the form belt arranged third spreader roller 7 'runs to a Angle ⁇ can be adjusted.
  • the movable lower and upper Scattering wall corresponds to that already described for FIGS. 3 and 4 Design.
  • the scatter walls are on the inner rocker 12 attached in the area of the pivotally arranged spreader rollers.
  • the number of the lower fixed spreading rollers 7 ' can of course be varied. Because of the training of the spreading head with lower fixed spreading rollers and other swiveling spreader rollers, the sealing of the Scattering space simplified in the lower area.
  • 6a and 6b is in a side view and in one Top view of another design of the upper one and lower movable scattering walls 10 ', 10 "are shown schematically.
  • the movable spreading walls become of themselves overlapping rectangular sheets 25 formed, the Sheets 25 are arranged horizontally one above the other.
  • the Sheets 25 are each on the side areas of the spreader rollers 7 facing side connected to the inner rocker 12.
  • the angle ⁇ changes, the sheets 25 become each shifted in a horizontal direction (arrow 26) and are pressed against the inner rocker 12, so that both a seal to the ribbon 5 and the inner rocker 12 remains.
  • FIG. 7a and 7b is a further embodiment according to the invention the upper and lower movable scattering walls 10 ', 10' ' shown in side view and top view.
  • slats 28 made of a fabric or plastic tape exist, articulated on the inner rocker 12 of the spreading head 6 attached.
  • the slats 28 of the lower spreading wall 10 ' extend here from the inner rocker 12 in the direction of the forming belt 5 with the adjacent ones Slats 28 overlap each.
  • the slats 28 are at their end region facing the forming belt 5 via a parallel to the forming belt 5 arranged roller 29 and deflected Springs biased.
  • the lamellae 28 of the upper scatter wall 10 ' extend obliquely starting from the inner rocker 12 upwards and are also deflected via a roller 30 and preloaded with spring elements. When changing the The angle 28, the slats 28 are each according to the arrow 31 postponed.
  • the spreading head shown and described in FIG. 3 has both actuators 15 for width adjustment of the spreading walls, as well as actuators 19 for the angular adjustability of the spreading head on.
  • actuators 15 for width adjustment of the spreading walls
  • actuators 19 for the angular adjustability of the spreading head on.
  • the spreading walls can then according to the in the design variants to FIGS. 3 to 7 described Constructions be formed. In this configuration are the shaft ends of the spreader rollers through through holes the inner swing arm carried and stored.
  • FIGS. 8a, b and 9a, b Different design variants are shown in FIGS. 8a, b and 9a, b for sealing between the through holes 13 of the inner rocker 12 and the one carried out Spreading roller 7 shown.
  • These sealing variants described below are used when the invention Spreading head horizontally movable spreading walls (adjustable width) having. Through these seals achieved that through the remaining passage openings none between the spreader rollers 7 and the inner rocker 12 Chips, fibers or the like in the space between firmer Scattering wall 18 and movable scattering walls 10 can reach.
  • a ring 34 rotatably mounted on the inner rocker 12.
  • the ring 34 has an axial Through hole 37, which corresponds to the contour of the spreader roller 7, so that the spreader roller 7, here as a spiked roller is formed with little play through the through hole 37 performed and axially shifted. With rotation the spreader rollers 7, the ring 34 is taken.
  • the Ring 34 is dimensioned in its axial extent such that with a width adjustment of the spreading walls, by the ring 34 also in the axial direction on the spreader roller 7 is moved, there is always a row of spikes within of the ring 34 is located. This makes positioning of the ring 34 with respect to the spreader roller 7 even at one The width of the spreading walls can be adjusted at any time.
  • FIGS. 9a, b show a further embodiment of a seal.
  • a seal Here are on the inner rocker 12 on the Through bore 13 is an axially outwardly projecting flange 40 intended.
  • This flange 40 is in its axial extent dimensioned such that it is approximately two axially spaced Row of spikes of the spreader roller 7 can cover. Between the axially spaced rows of spikes of the spreader roller 7 is in each case in the middle a sealing washer 41 arranged in its Diameter adapted to the inner diameter of the flange is.
  • the Scattering walls 10 are also attached to an inner rocker 44.
  • the movable scattering walls 10 can be in any the embodiment described above his.
  • the inner rocker 44 has through holes 45 through which the shaft ends of the spreader rollers 46 are passed and are stored.
  • the spreader rollers 46 are telescopic in their axial extent trained so that they are at a width adjustment of the Scattering walls 10 (shown schematically by arrow 47) the distance adjust between the opposite spreading walls can and not as in the previously described embodiments through openings in the inner rocker 12 must be carried out.
  • the rows of spikes are Spreading rollers each on individual rings 48 on a shaft base 49 placed, the rings 48 at maximum axial extension of the spreader rollers 46 are axially spaced. Via axial bearings 50, which are arranged in the through bores 50 are, the rings 48 can be pushed together. To neighboring Keep rings 48 equally spaced, are compression springs 51 between adjacent rings used.
  • a height adjustment of the spreading head can be adjusted.
  • the angle and / or height adjustment of the spreading head can be done automatically depending on the current position of a leveling roller respectively.
  • the arrangement of a leveling roller E is in 1 to 3 is shown schematically, but is on this Place not described in detail, since they are known to a person skilled in the art is.
  • This automatic control can be done so that the Spreader roller that is the greatest vertical distance from the forming belt has, is arranged closely above the nonwoven surface. Furthermore, the speed of the spreader rollers could be regulated take place so that the material flow at every angle setting of the angle ⁇ is always transported to the end of the last spreader roller becomes.
  • the spreading head arrangement to be adjustable in width, the scattering walls each consisting of an upper and lower scatter wall, which are horizontal via an actuator can be moved.
  • Upper and lower scatter walls are attached to a swing arm, the through holes for the spreading rollers. These through holes will as already explained in the description, sealed.
  • the seals can as to FIGS. 8a / B and 9a / b shown and described.

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)
EP20020002585 2001-02-08 2002-02-05 Dispositif de distribution à rouleaux pour la formation de toiles de copeaux Withdrawn EP1231039A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001105739 DE10105739A1 (de) 2001-02-08 2001-02-08 Streukopf zum Streuen von Spänevliesen
DE10105739 2001-02-08

Publications (1)

Publication Number Publication Date
EP1231039A2 true EP1231039A2 (fr) 2002-08-14

Family

ID=7673291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020002585 Withdrawn EP1231039A2 (fr) 2001-02-08 2002-02-05 Dispositif de distribution à rouleaux pour la formation de toiles de copeaux

Country Status (2)

Country Link
EP (1) EP1231039A2 (fr)
DE (1) DE10105739A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1938934A3 (fr) * 2006-12-25 2009-08-05 Dieffenbacher GmbH & Co. KG Procédé et station de formage destinés à la formation d'un matelas de sable lors de la fabrication de plaques en matières premières
CN102225570A (zh) * 2011-04-14 2011-10-26 上海板机电气制造有限公司 一种铺装头结构
WO2020226545A1 (fr) * 2019-05-07 2020-11-12 Ikea Supply Ag Appareil et procédé pour la fabrication de panneaux à base de bois
WO2020244876A1 (fr) * 2019-06-07 2020-12-10 Ipco Germany Gmbh Rouleau de saupoudrage pour un dispositif de distribution

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7137773U (de) * 1972-01-13 Baehre & Greten Gmbh & Co Kg Formstation zur Bildung von zu verpressenden Spanvliesen
DE1230203B (de) * 1961-02-03 1966-12-08 Schenck Gmbh Carl Vorrichtung zur kontinuierlichen Formung eines aus Holzspaenen od. dgl. auf einen bewegten Traeger (Formband od. dgl.) geschuetteten Stranges von einstellbarer Schuettbreite mittels Streuvorrichtungen
DE2851779C2 (de) * 1978-11-30 1984-05-30 G. Siempelkamp Gmbh & Co, 4150 Krefeld Streuvorrichtung
DE3841276C1 (fr) * 1988-12-08 1990-05-17 G. Siempelkamp Gmbh & Co, 4150 Krefeld, De
DE4439653A1 (de) * 1994-11-07 1996-05-09 Baehre & Greten Vorrichtung zum Streuen von beleimten Spänen, Fasern und dergleichen Teilchen
DE19858096A1 (de) * 1998-12-16 2000-06-21 Timberex Timber Exports Ltd Vorrichtung und Verfahren zum Streuen von Teilchen zu einem Vlies
DE19919820A1 (de) * 1999-05-01 2000-11-02 Dieffenbacher Gmbh Maschf Verfahren und Streustation zur Herstellung von Preßgutplatten

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1938934A3 (fr) * 2006-12-25 2009-08-05 Dieffenbacher GmbH & Co. KG Procédé et station de formage destinés à la formation d'un matelas de sable lors de la fabrication de plaques en matières premières
CN102225570A (zh) * 2011-04-14 2011-10-26 上海板机电气制造有限公司 一种铺装头结构
WO2020226545A1 (fr) * 2019-05-07 2020-11-12 Ikea Supply Ag Appareil et procédé pour la fabrication de panneaux à base de bois
EP3966007A4 (fr) * 2019-05-07 2023-02-08 IKEA Supply AG Appareil et procédé pour la fabrication de panneaux à base de bois
WO2020244876A1 (fr) * 2019-06-07 2020-12-10 Ipco Germany Gmbh Rouleau de saupoudrage pour un dispositif de distribution
US11911935B2 (en) 2019-06-07 2024-02-27 Ipco Germany Gmbh Spreader roll for a distributing device

Also Published As

Publication number Publication date
DE10105739A1 (de) 2002-08-14

Similar Documents

Publication Publication Date Title
DE2851779C2 (de) Streuvorrichtung
DE3533670C2 (fr)
DE10163054B4 (de) Streugutanlage zum Streuen von Streugut, insbesondere beleimten Holzspänen, Holzfasern oder dergleichen, auf einen Streubandförderer
DE3532856C1 (de) Rundstrickmaschine mit Nadeln und Einschliessplatinen
DE1908822A1 (de) Dosiervorrichtung fuer pulverfoermige Stoffe
DE19940333A1 (de) Anlage für die Herstellung einer Spinnvliesbahn aus Kunststoffilamenten
EP1231039A2 (fr) Dispositif de distribution à rouleaux pour la formation de toiles de copeaux
DE3841276C1 (fr)
DE4302850C2 (de) Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
DE2734403A1 (de) Vorrichtung zum ausrichten von mit einem bindemittel versehenen, lignozellulosehaltigen teilchen
DE4015583A1 (de) Anlage zum aufstreuen von holzwerkstoff-streugut auf ein formband
DE3709039C2 (de) Käfig für Längsbewegungen ausführende Rollenlager
CH618504A5 (fr)
DE2933593A1 (de) Vorrichtung zum aufstreuen von spaenen auf eine streuunterlage
DE3811677A1 (de) Vorrichtung zur vergleichmaessigung der flaechengewichtsverteilung von vliesen
EP1010465B1 (fr) Elément pour surface de broyage sous forme de tambour
DE102020000311B4 (de) Gerät zum Speichern und Auftragen einer fliessfähigen Substanz, insbesondere einer kosmetischen Substanz
WO1997036721A1 (fr) Dispositif pour repandre de façon ordonnee des copeaux de bois lors de la fabrication de panneaux d'agglomeres
EP1201381B1 (fr) Dispositif pour la distribution d'un matériau à étaler sur un support en mouvement continu
DE3022629C2 (de) Vorrichtung zum Aufstreuen von in einer Richtung ausgerichteten Spänen auf eine Streuunterlage
DE2226027C3 (de) Vorrichtung zum Verteilen von gekörntem und pulverförmigem Material über den 0oden
DE3903238A1 (de) Oeffnungsvorrichtung
DE102017103456B4 (de) Abtrageinheit einer Abtrageinrichtung zum Abtragen von Pressgut, Vorrichtung zur Realisierung eines vorgegebenen Flächengewichts einer auf einer Förderbahn aufgestreuten Pressgutmatte, Anlage zur Herstellung von Pressplatten und Verfahren zur Realisierung eines vorgegebenen Flächengewichts
DE19856338A1 (de) Abstreifvorrichtung für Förderbänder
DE1409846A1 (de) Streuvorrichtung fuer Kies,Salz oder anderes Streugut,z.B. Kunstduenger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040901