EP1201381A2 - Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage - Google Patents
Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage Download PDFInfo
- Publication number
- EP1201381A2 EP1201381A2 EP01125037A EP01125037A EP1201381A2 EP 1201381 A2 EP1201381 A2 EP 1201381A2 EP 01125037 A EP01125037 A EP 01125037A EP 01125037 A EP01125037 A EP 01125037A EP 1201381 A2 EP1201381 A2 EP 1201381A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- disks
- roller
- rollers
- spreading
- 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.)
- Granted
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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 spreading grit on a continuously moving pad according to the generic term of claim 1.
- Fiber bales In the manufacture of wood-based panels, in particular Fibreboard, there is a problem with transportation the fibers form so-called fiber bales. Is caused this mostly through wall friction, combing devices, etc. Cause material circulation and the fibers into spherical Combine fiber agglomerates. These bales of fiber are very undesirable as they are in the finished fiberboard lead to a cloud-like surface structure and one represent optical quality deficiency.
- DE-AS 11 74 058 are counter-rotating disk rollers or spiked rollers known, the rows in the circumference have arranged spines that between the rows of spines of the opposite roller.
- a sieve below a blow register has, which comprises a vibration drive.
- This sieving device can also be used for foreign objects such as Glue knots are excreted.
- the object of the present invention is therefore a device for spreading spreading material in such a way that a high quality wood-based panels are produced can and damage to device parts of the production plant be avoided for the production of wood-based panels. This object is achieved by those specified in claim 1 characteristic features solved.
- the second roller By forming the first roller that rotates slowly and Has recesses between the opening elements, a Take away the material that is to be dissolved.
- the second roller which also has opening elements and rotates much faster, now pulls through when rotating the first roll of entrained fibers through the opening nip. Due to the large number of opening elements and the fast rotation good fiber resolution is achieved.
- Dissolving disc While hitting the resilient table Dissolving disc becomes the foreign body due to the opposite rotation of the rollers through the gap between the Dissolving disks of adjacent rollers are conveyed and the foreign body is accelerated to the same speed.
- the foreign body may be due the resiliently designed disks between the elements are included so that it does not become a Damage to the rollers or elements.
- the opening disks advantageously as spring plates with a sheet thickness of 1.5 mm are formed, the low Having air resistance can prevent or reduce it of air currents and turbulence in the area of rotating rollers can be reached.
- This has the advantage that no undesirable swirling of the fibers at the outlet that are otherwise at an undesirable temporal as well as local redistribution of the mass flow.
- the thin spring washers are designed as opening disks are and preferably have a sheet thickness of 1-3 mm, and these are arranged axially spaced on the rollers, the axial distance is preferably 3-5 mm, due to high throughput due to the large gap passage area can be achieved. The axial distance in Depending on the size of the smallest fiber bale selected, that should be resolved.
- the Dissolving elements have recesses on the end face, so that two peaks are formed. This can make an even better one Dissolution of fiber bales can be achieved.
- a particularly preferred embodiment of the invention provides before that the rollers are arranged adjustable to each other, so that the dissolving elements of the dissolving disks from one state where they work together to one condition where they are set to not interact with each other can be.
- FIGS. 1 schematically shows a molding station 1 with a dosing hopper 2, an opening roller arrangement 3, a dosing belt scale 4, a scattering head arrangement 5 and a forming belt 6 on which the Material fleece 7 is sprinkled from glued fibers, shown.
- the material flow is preferably consists of glued fibers, temporarily stored and on a planned discharge width distributed.
- a material flow primarily lignocellulosic particles of different Size provided.
- the glued fibers are over a Discharge roller arrangement 8 of the dosing hopper 2 onto the opening roller arrangement 3 abandoned, the two rotating in opposite directions driven rollers 9, 9 '.
- the rollers 9, 9 ' are, as can be seen from FIGS.
- the additional conveying device is designed as a dosing belt scale 4, which is continuous a controllable delivery rate into the spreading head arrangement 5 promotes so that depending on the plate thickness and width of the Spreading head arrangement 5 a predeterminable amount onto the forming belt 6 is spreadable.
- the conveying direction of the forming belt 6 is here represented by arrow 10.
- the fiber dissolving roller arrangement could 3 also between the conveyor 4 and the scattering head arrangement 5 can be arranged.
- a molding station could be used that does not have an additional one Conveyor 4 contains, so that the fiber dissolving roller arrangement 3 between the dosing hopper 2 and the spreading head arrangement is arranged.
- FIGS. 2a and 2b show an embodiment according to the invention shown an opening roller assembly 3, the two axially parallel arranged rollers 9, 9 '.
- the opening roller arrangement 3 described is as already shown in FIG. 1 described preferably for the production of fiberboard can be used, glued fibers from a dosing bunker as Material flow via a discharge roller arrangement onto the roller 9 be abandoned.
- the task of the material flow on the roller 9 is represented by the arrows 11.
- the rollers 9, 9 ' are provided with disks 12, 13, the disks 12, 13 on the rollers 9, 9 'each axially spaced are. Between the neighboring ones arranged on the rollers Opening disks 12, 13 are spacer sleeves 14, 15, respectively inserted.
- a positioning or axial spacing of the opening disks can, however, also be designed in any other way.
- 9,9 'comb strips on the rollers are arranged for the opening disks in a defined Distance corresponding grooves for positioning exhibit. The disks can then be in their predetermined Position via a bayonet lock in the comb strips screwed in and thus fixed.
- the disks 12,13 are made of a resilient material, preferably made of thin spring plate.
- the sheet thickness of the opening disks In this exemplary embodiment, 12, 13 is 1.5 mm.
- the opening disks 12 and 13 of the rollers 9 'and 9 are each equally trained.
- the disks have, as can be seen from Fig. 2a is an annular portion 16 of which is uniform Dissolving elements 17 distributed radially over the circumference Extend outside, between which recesses 19 remain.
- the opening elements 17 are essentially rectangular. Furthermore, are radial in the middle of their end faces Inwardly tapering recesses are provided so that each opening element has two tips 18 at the ends.
- roller 9 and the roller 9 'are as indicated by the arrows 21 is indicated, rotating in opposite directions, wherein the speeds of the rollers 9 and 9 'are of different sizes.
- the roller 9 runs slower than the roller 9 '.
- the roller 9 runs at 200 to 800 revolutions per minute preferably 400 to 600 and the roller 9 'with 800 to 2,500 revolutions per minute, preferably 1,000 to 1,400.
- the fiber stream is fed onto the slowly rotating roller 9.
- the fibers are picked up and in the direction of rotation transported further, so that the roller 9 the function a transport roller.
- the rapidly rotating roller 9 'dips into the fiber-loaded roller 9 and pulls the fibers des. Fiber flow through the formed between the toothed disks 12, 13 Column.
- the gap width unhindered by the fiber flow as well as foreign bodies and fiber bales is 5 mm, the distance in the axial direction from the opening disk to the opening disk of a roller is 11.5 mm.
- roller 9 which also is equipped with opening disks, and that much faster rotates, fiber bales are dissolved in the fiber stream. Due to the resilient design of the opening disks can damage the opening disks at Passage of foreign bodies can be avoided as the disks are elastically deformable and can dodge. The fiber stream then arrives at a not shown Spreading roller arrangement and can be spread as a nonwoven or first arrives at another conveyor.
- the distance between the rollers 9, 9 'in one area of 50 mm can be changed, which results in a meshing condition the opening disks 12, 13 of adjacent rollers 9, 9 '(illustration 2a, 2b) and a non-combing state (not shown) can be set.
- the intermeshing condition is the spacers on each roller 9,9 ' replaced and additional disks opened, so that the axial distance of the opening disks on each roller 9.9 'is 5 mm.
- FIG. 3 shows a further embodiment of a dissolving disc 12/13 shown, which is essentially the same as the 2a, 2b has the contour described, but none Recesses made on the face side in the opening elements having. In a further development, they could be radially outward pointing edges of the opening elements are also rounded his.
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)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
- Figur 1 :
- eine schematische Darstellung einer Formstation mit Auflösewalzenanordnung;
- Figur 2a, 2b:
- eine Ausführungsform eines Auflösewalzenpaares in Seitenansicht und ein Teilausschnitt in Draufsicht;
- Figur 3 :
- eine weitere Ausführungsform einer erfindungsgemäßen Zahnscheibe.
Claims (10)
- Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage im Zuge der Herstellung von Holzwerkstoffplatten, mit zumindest zwei gegensinnig rotierend benachbart angeordneten Walzen, die mit Auflösescheiben versehen sind, dadurch gekennzeichnet, daß die Auflösescheiben (12/13) der ersten Walze (9) und der zweiten Walze (9') federelastisch ausgebildet sind und radial nach außen gerichtete Auflöseelemente (17) aufweisen, und wobei die erste Walze (9) langsamer rotiert als die zweite Walze (9').
- Vorrichtung zum Streuen von Streugut nach Anspruch 1, wobei die Auflöseelemente (17) im Querschnitt rechteckig augebildet sind und gleichmäßig beabstandet über den Umfang verteilt angeordnet sind.
- Vorrichtung zum Streuen von Streugut nach Anspruch 1 oder 2, wobei die Auflösescheiben (12, 13) auf den Walzen (9, 9') durch Hülsen (14, 15) axial beabstandet sind.
- Vorrichtung zum Streuen von Streugut nach Anspruch 3, wobei die Dicke der Auflösescheiben (12,13) um ein Vielfaches kleiner ist als der axiale Abstand zwischen den Auflösescheiben (12,13).
- Vorrichtung zum Streuen von Streugut nach Anspruch 4, wobei die Dicke der Auflösescheiben (12,13) zwischen 1 bis 3 mm und der axiale Abstand zwischen 2 und 10 mm bevorzugt zwischen 3 und 5 mm gewählt wird.
- Vorrichtung zum Streuen von Streugut nach Anspruch 1, wobei die Walzen (9, 9') zueinander verstellbar angeordnet sind.
- Vorrichtung zum Streuen von Streugut nach Anspruch 6, wobei die Auflösescheiben (12,13) benachbarter Walzen (9,9') ineinandergreifend zusammenwirken.
- Vorrichtung zum Streuen von Streugut nach Anspruch 6, wobei die Auflösescheiben benachbarter Walzen (9,9') derart angeordnet sind, daß sie nicht ineinandergreifend zusammenwirken.
- Vorrichtung zum Streuen von Streugut nach Anspruch 1, wobei in die Auflöselemente (17) stirnseitig Ausnehmungen eingebracht sind, die sich radial nach innen verlaufend verjüngen und somit endseitig zwei Spitzen gebildet werden.
- Vorrichtung zum Streuen von Streugut nach Anspruch 1, wobei die radial nach außen gerichteten Kanten der Auflöseelemente (17) abgerundet ausgebildet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10053129 | 2000-10-26 | ||
DE2000153129 DE10053129A1 (de) | 2000-10-26 | 2000-10-26 | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1201381A2 true EP1201381A2 (de) | 2002-05-02 |
EP1201381A3 EP1201381A3 (de) | 2005-04-13 |
EP1201381B1 EP1201381B1 (de) | 2006-08-09 |
Family
ID=7661154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010125037 Expired - Lifetime EP1201381B1 (de) | 2000-10-26 | 2001-10-22 | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1201381B1 (de) |
DE (2) | DE10053129A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE10304134A1 (de) * | 2003-02-03 | 2004-08-05 | Dieffenbacher Gmbh + Co. Kg | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Citations (6)
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 |
DE2535461A1 (de) * | 1975-08-08 | 1977-02-10 | Siempelkamp Gmbh & Co | Vorrichtung zum aufstreuen von mattenstreugut bei der herstellung von spanplatten, faserplatten u.dgl. |
US5163564A (en) * | 1991-03-18 | 1992-11-17 | Beloit Technologies, Inc. | Disc screen with controlled interfacial openings |
DE4212017A1 (de) * | 1992-04-09 | 1993-10-14 | Baehre & Greten | Deckschichtstreuvorrichtung |
DE4302850A1 (de) * | 1993-02-02 | 1994-08-04 | Siempelkamp Gmbh & Co | Anlage zum Streuen von beleimtem Streugut zu Streugutmatten im Zuge der Herstellung von Holzwerkstoffplatten |
DE10020881A1 (de) * | 2000-04-28 | 2001-10-31 | Dieffenbacher Schenck Panel | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4037723A (en) * | 1975-05-02 | 1977-07-26 | Rader Companies, Inc. | Disk separator |
DE8013215U1 (de) * | 1980-05-16 | 1987-02-19 | Carl Schenck Ag, 6100 Darmstadt | Vorrichtung zum Ausrichten von Spänen in eine Vorzugsrichtung bei der Herstellung von Spanplatten |
DE3402528A1 (de) * | 1984-01-26 | 1985-08-01 | Carl Schenck Ag, 6100 Darmstadt | Vorrichtung zum ausrichten von spaenen |
DE4213928A1 (de) * | 1992-04-28 | 1993-11-04 | Baehre & Greten | Anlage zum streuen von beleimten spaenen, fasern und dergleichen teilchen |
DE19640622C2 (de) * | 1996-10-01 | 1998-11-12 | Moeller Plast Gmbh | Baustoff und Verfahren sowie Vorrichtung zur Herstellung eines Baustoffs |
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 |
DE19916462A1 (de) * | 1999-04-12 | 2000-10-19 | Dieffenbacher Schenck Panel | Formstation |
DE19916448A1 (de) * | 1999-04-12 | 2000-10-19 | Dieffenbacher Schenck Panel | Streustation für Faserplatten |
DE19916447A1 (de) * | 1999-04-12 | 2000-10-19 | Dieffenbacher Schenck Panel | Formstation |
-
2000
- 2000-10-26 DE DE2000153129 patent/DE10053129A1/de not_active Withdrawn
-
2001
- 2001-10-22 DE DE50110678T patent/DE50110678D1/de not_active Expired - Lifetime
- 2001-10-22 EP EP20010125037 patent/EP1201381B1/de not_active Expired - Lifetime
Patent Citations (6)
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 |
DE2535461A1 (de) * | 1975-08-08 | 1977-02-10 | Siempelkamp Gmbh & Co | Vorrichtung zum aufstreuen von mattenstreugut bei der herstellung von spanplatten, faserplatten u.dgl. |
US5163564A (en) * | 1991-03-18 | 1992-11-17 | Beloit Technologies, Inc. | Disc screen with controlled interfacial openings |
DE4212017A1 (de) * | 1992-04-09 | 1993-10-14 | Baehre & Greten | Deckschichtstreuvorrichtung |
DE4302850A1 (de) * | 1993-02-02 | 1994-08-04 | Siempelkamp Gmbh & Co | Anlage zum Streuen von beleimtem Streugut zu Streugutmatten im Zuge der Herstellung von Holzwerkstoffplatten |
DE10020881A1 (de) * | 2000-04-28 | 2001-10-31 | Dieffenbacher Schenck Panel | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Also Published As
Publication number | Publication date |
---|---|
DE50110678D1 (de) | 2006-09-21 |
EP1201381B1 (de) | 2006-08-09 |
DE10053129A1 (de) | 2002-05-08 |
EP1201381A3 (de) | 2005-04-13 |
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