EP1153718A1 - 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
- EP1153718A1 EP1153718A1 EP01109736A EP01109736A EP1153718A1 EP 1153718 A1 EP1153718 A1 EP 1153718A1 EP 01109736 A EP01109736 A EP 01109736A EP 01109736 A EP01109736 A EP 01109736A EP 1153718 A1 EP1153718 A1 EP 1153718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- spreading
- elements
- material according
- spring elements
- 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.
- 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 in that the elements are resilient trained and / or rotatably supported and centrifugal force are arranged on the rollers and / or resilient are arranged on the roller and the particles of Material flow during the passage between the rollers in a pulsed manner acted upon and depending on their specific Weights are accelerated.
- the invention further provides that the elements are resilient are arranged on the rollers, even in this training If a foreign body hits, a deflection of the Elements and impulses when the particles hit are reduced to the elements.
- the rollers in such a way are arranged that one through the central axes of the rollers running plane to an horizontal plane an angle of 30 ° to 90 °, preferably 45 ° to 75 °.
- the particles of the material flow are between the Rolls are impulsed and depending on their specific Weights with different kinetic energy loaded. Depending on the kinetic energy of the particles of the material flow the particles of the material flow move in a different throwing parabola from the opening roller arrangement, so that unwanted foreign matter from the rest Material flow can be separated.
- FIG. 1 shows schematically a molding station with at least one Dosing hopper 1, which has a discharge roller arrangement 2, an opening roller arrangement 3, a scattering head arrangement 4 and a forming belt 5 are shown.
- the opening roller arrangement 3 consists of two below the discharge roller arrangement 2 Rollers 6, 6 'arranged one above the other, the rolls 6, 6 'are arranged axially parallel and one through which Center axes of the rollers 6, 6 'running plane 7 to a horizontal plane 8 an angle ⁇ 9 of 30 to 90 °, preferably from 45 ° to 75 °.
- the forming station is preferably for the production of plates from lignocellulose and or cellulose-containing particles of different Size such as fibers, chips and the like are provided.
- the metering bunker 1 becomes glued fibers as a material flow via the discharge roller arrangement 2 over a predetermined one Width continuously discharged and on the opening roller arrangement 3 abandoned.
- the rollers 6, 6 'are as is by the Arrows 10 is shown, rotating in opposite directions, the elements arranged on the rollers 6, 6 'for dissolving interact with each other during rotation. Closer Details of the design of the rollers 6, 6 'are based on the Figures 2, 3a, 3b, 4a, 4b, 5a, 5b described.
- the material flow starts from the Discharge roller arrangement 2 due to its gravity down and hits the rollers 6, 6 'at low speed. These rotate at a very high speed of 600 to 3000 revolutions per minute preferably 800 to 1200 revolutions per minute and accelerate the impinging particles of the material flow on the peripheral speed.
- the substance particles are thus at this speed from the opening roller arrangement 3 catapulted. Together with the particles, too an air stream is drawn through the opening roller assembly 3.
- This Airflow expands immediately behind the opening roller assembly 3, causing a rapid delay in air speed is caused.
- the light wood particles are due to their low kinetic energy together with the Airflow delayed.
- Foreign body with a higher specific Weight on the other hand, have a significantly higher kinetic Energy and only delay their achieved speed very slowly.
- rollers 6, 6 ' With resiliently designed and / or resilient formed on the rollers 6, 6 'and / or rotatably mounted and elements aligned via centrifugal force described in more detail for resolving.
- the elements are to dissolve as on the rollers 6, 6 'over the circumference distributed tapered spiral spring elements 19 trained.
- the spiral spring elements 19 are arranged in this way on the rollers 6, 6 ' are that when the rollers 6, 6 'rotate in opposite directions, each protrude into the spaces between the opposite roller and thus interact and interact Dissolving a bundled stream of fibers onto the rollers is abandoned, and through the gap between the rollers passes, is reached. Strikes a foreign body on a coil spring element 19, the spiral spring element becomes elastic deformed, causing the acting impulse forces to multiply be reduced. After the foreign body to the same The spiral spring element takes up the speed 19 its original position again.
- FIGS. 4a and 4b are on the Rollers 6, 6 'axially spaced a variety of flexible Spring steel plates arranged as spring elements 20, which have a thickness of 0.1 to 1 mm, preferably 0.2 to 0.5 mm.
- the flexible spring elements made of sheet metal washers 20 are arranged on the rollers 6, 6 'in such a way that the Spring elements 20 of the first roller 6 in the spaces between Spring elements 20 of the second roller 6 'engage. Due to the Formation of the spring elements 20 as flexible sheet metal disks the discs can deform elastically in the axial direction and thus a foreign body without damaging the panes let through.
- the spring elements can have a profile 21.
- the Profiling 21 can be corrugated or, for example, sawtooth-shaped be trained.
- FIGS. 5a and 5b can continue be provided that the rollers 6, 6 'with an elastic Cover 22 are encased, the elastic cover perforated evenly over the circumference.
- a plurality of spikes 23 are embodied as an opening roller 6 provided which are substantially cylindrical, and provided on one side with a disk-shaped plate 24 are. At their end facing away from the plate 24, the Spines 23 tapering, rounded or flattened his.
- the individual spines 24 are from the inside through the corresponding perforations in the elastic sleeve 22 inserted and are due to the bias of the elastic Cover 22 pressed onto the roller 6.
- the spines are 23 radially aligned in parallel planes of the roller 6 distributed over the circumference. Are advantageous on a plane twenty-five to thirty-five spines over distributed the circumference.
- a foreign object hits can avoid the spikes 23 by the disc-shaped Lift the plate 24 off the roller 6 and the elastic Case 22 is pulled up.
- two rollers 6, 6 ' are in opposite directions arranged in rotation, the spikes 23 of the roller 6 in the Intervene gaps between the spikes 23 of the roller 6 ' to achieve a resolution of fiber aggregation.
- FIG. 6 schematically shows a molding station with dosing hopper 1, an opening roller arrangement 3, a scattering head arrangement 4 and a forming tape 5 onto which the material fleece 25 is glued Fibers are sprinkled.
- the dosing hopper 1 the material flow from glued fibers temporarily stored and spread over a designated discharge width and down discharged over the entire width of the dosing hopper 1.
- the Material flow is then on the opening roller arrangement 3 abandoned, the two rotating in opposite directions Rolls 6, 6 '.
- the additional conveying device 26 is there designed as a belt weigher, which is continuously adjustable Conveyed quantity into the spreading head arrangement 4, so that depending on the plate thickness and width of the spreading head arrangement a predeterminable amount can be sprinkled onto the forming belt 5.
- the conveying direction of the forming belt 5 is here by the arrow 27 shown.
- the fiber dissolving roller arrangement could 3 also between the conveyor 26 and the scattering head arrangement 4 can be arranged.
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)
Abstract
Description
- Figur 1:
- eine schematische Darstellung einer Formstation mit Auflösewalzenanordnung;
- Figur 2:
- eine Ausführungsform eines Auflösewalzenpaares;
- Figur 3a, 3b:
- eine weitere Ausführungsform eines Auflösewalzenpaares in Seitenansicht und ein Teilausschnitt in Draufsicht;
- Figur 4a, 4b:
- eine weitere Ausführungsform eines Auflösewalzenpaares in Seitenansicht und Teilausschnitt in Draufsicht;
- Figur 5a, 5b:
- eine weitere Ausführungsform einer Auflösewalze im Querschnitt und in Seitenansicht, und
- Fig. 6:
- eine weitere schematische Darstellung einer Formstation mit Auflösewalzenanordnung.
Claims (9)
- Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage im Zuge der Herstellung von Holzwerkstoffplatten, mit zumindest zwei gegensinnig rotierend angeordneten Walzen, die Elemente zum Auflösen von in einem Stoffstrom enthaltenen Verdickungen aufweisen, wobei die Elemente benachbarter Walzen ineinandergreifend zusammenwirken, dadurch gekennzeichnet, daß die Elemente (15, 19, 20) federelastisch ausgebildet und/oder federelastisch an den Walzen (6, 6') angeordnet sind und/oder drehbar gelagert und fliehkraftausrichtend an den Walzen (6, 6') angeordnet sind, und die Partikel des Stoffstroms während des Durchtretens zwischen den Walzen (6, 6') impulsartig beaufschlagt und in Abhängigkeit ihrer spezifischen Gewichte beschleunigt werden.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Elemente als gebogene Federelemente (15) an den Walzen (6,6') gelenkig gelagert sind.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Federelemente (15) als Druckgußelemente oder Flachstahlelemente ausgebildet sind.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Elemente als an den Walzen (6,6')verteilt angeordnete Spiralfederelemente (17) ausgebildet sind.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Elemente als Federelemente (20) aus flexiblen Blechscheiben ausgebildet sind.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 5, wobei die Federelemente (20) eine Profilierung (21) aufweisen.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Elemente als einzelne Stacheln (23) mit scheibenförmigen Tellern (24) ausgebildet sind, die durch eine gelochte elastische Hülle (22) auf den Walzen (6, 6') positioniert festgehalten werden.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 1, wobei die Walzen (6, 6') derart angeordnet sind, daß eine durch die Mittelachsen der Walzen (6, 6') verlaufende Ebene (7) zu einer waagrechten Ebene (8) einen Winkel α (9) von 30 bis 90° vorzugsweise von 45° bis 75° aufweist.
- Vorrichtung zum Streuen von Streugut nach Patentanspruch 8, wobei zusätzlich ein Schacht (11) zur Aufnahme von Fremdkörpern mit hohem spezifischem Gewicht vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000120881 DE10020881A1 (de) | 2000-04-28 | 2000-04-28 | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
DE10020881 | 2000-04-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1153718A1 true EP1153718A1 (de) | 2001-11-14 |
EP1153718B1 EP1153718B1 (de) | 2008-06-11 |
Family
ID=7640233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010109736 Expired - Lifetime EP1153718B1 (de) | 2000-04-28 | 2001-04-20 | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1153718B1 (de) |
DE (2) | DE10020881A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1810805A1 (de) * | 2006-01-20 | 2007-07-25 | Dieffenbacher GmbH + Co. KG | Verfahren und Formstation zur Bildung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten |
EP1938934A3 (de) * | 2006-12-25 | 2009-08-05 | Dieffenbacher GmbH & Co. KG | Verfahren und Formstation zur Bildung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten |
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. |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10053129A1 (de) * | 2000-10-26 | 2002-05-08 | Dieffenbacher Schenck Panel | Vorrichtung zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage |
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 |
DE10356775A1 (de) * | 2003-12-02 | 2005-07-07 | Dieffenbacher Gmbh + Co. Kg | Verfahren und Anlage zur Beleimung von Fasern und eine Faserbeleimungsvorrichtung |
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 |
US3252186A (en) * | 1963-01-21 | 1966-05-24 | Wood Conversion Co | Differential fiber dispersing rolls and felting therefrom |
US4068991A (en) * | 1975-08-08 | 1978-01-17 | G. Siempelkamp & Co. | Layer-forming apparatus especially for particle board mats |
DE4212017A1 (de) * | 1992-04-09 | 1993-10-14 | Baehre & Greten | Deckschichtstreuvorrichtung |
US5496570A (en) * | 1993-02-02 | 1996-03-05 | Siempelkamp Gmbh & Co. | Apparatus for spreading particulate materials |
WO1998040173A1 (en) * | 1997-03-12 | 1998-09-17 | Pal S.R.L. | Roller device to separate chips and particles of different gradings, and the relative forming machine employing the device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8128311U1 (de) * | 1981-09-26 | 1986-12-11 | Carl Schenck Ag, 6100 Darmstadt | Vorrichtung zum Ausrichten von Spänen bei der Herstellung von Spanplatten |
DE4439653A1 (de) * | 1994-11-07 | 1996-05-09 | Baehre & Greten | Vorrichtung zum Streuen von beleimten Spänen, Fasern und dergleichen Teilchen |
SE509665C2 (sv) * | 1997-02-24 | 1999-02-22 | Flaekt Ab | MDF-Formare |
DE19846107A1 (de) * | 1998-10-07 | 2000-04-13 | Dieffenbacher Schenck Panel | Walze zum Streuen und Abbremsen rieselfähiger Materialien |
-
2000
- 2000-04-28 DE DE2000120881 patent/DE10020881A1/de not_active Withdrawn
-
2001
- 2001-04-20 DE DE50114018T patent/DE50114018D1/de not_active Expired - Lifetime
- 2001-04-20 EP EP20010109736 patent/EP1153718B1/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 |
US3252186A (en) * | 1963-01-21 | 1966-05-24 | Wood Conversion Co | Differential fiber dispersing rolls and felting therefrom |
US4068991A (en) * | 1975-08-08 | 1978-01-17 | G. Siempelkamp & Co. | Layer-forming apparatus especially for particle board mats |
DE4212017A1 (de) * | 1992-04-09 | 1993-10-14 | Baehre & Greten | Deckschichtstreuvorrichtung |
US5496570A (en) * | 1993-02-02 | 1996-03-05 | Siempelkamp Gmbh & Co. | Apparatus for spreading particulate materials |
WO1998040173A1 (en) * | 1997-03-12 | 1998-09-17 | Pal S.R.L. | Roller device to separate chips and particles of different gradings, and the relative forming machine employing the device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1810805A1 (de) * | 2006-01-20 | 2007-07-25 | Dieffenbacher GmbH + Co. KG | Verfahren und Formstation zur Bildung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten |
EP1938934A3 (de) * | 2006-12-25 | 2009-08-05 | Dieffenbacher GmbH & Co. KG | Verfahren und Formstation zur Bildung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten |
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. |
WO2012059826A1 (en) * | 2010-11-05 | 2012-05-10 | Imal S.R.L. | A device for fluidifying and/or accelerating a flow of loose material in the form of fibres, strands and/or shavings |
Also Published As
Publication number | Publication date |
---|---|
EP1153718B1 (de) | 2008-06-11 |
DE10020881A1 (de) | 2001-10-31 |
DE50114018D1 (de) | 2008-07-24 |
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