EP1412685A1 - Procede pour la production d'une planche en bois massif - Google Patents
Procede pour la production d'une planche en bois massifInfo
- Publication number
- EP1412685A1 EP1412685A1 EP02760217A EP02760217A EP1412685A1 EP 1412685 A1 EP1412685 A1 EP 1412685A1 EP 02760217 A EP02760217 A EP 02760217A EP 02760217 A EP02760217 A EP 02760217A EP 1412685 A1 EP1412685 A1 EP 1412685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boards
- board
- wood
- drying
- grinding
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/003—Mechanical surface treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Definitions
- Boards made of solid wood are often used in construction technology, for example for wall cladding or for floors. It is always the goal to give the respective wooden surface a "natural" look.
- wooden boards are made for such purposes so that the wood is freshly chipped, i.e. H. "wet" condition with a water content of about 60% is sawn into boards. These boards are then air dried. During this drying process, the boards warp relatively strongly, so that they then have to be planed flat. Since the boards become very uneven during the drying process in air, about 60% to 70% of the board thickness of the wood is lost in the subsequent planing process. The planed wood has a flat surface, so such a board is easily recognizable as a freshly made board. In many cases, however, it is desirable to use boards whose surface. resembles a wooden board that has aged for years. Such aged wooden boards have a slightly uneven surface due to temperature fluctuations, mechanical wear and the effects of moisture due to wet wiping, the unevenness of which can be seen by the eye.
- the aim of the present invention is therefore to provide a method for producing boards from solid wood, in which little wood material is lost and in particular the surface of the wood at the end of the
- Manufacturing process has slight bumps that correspond to the wood structure and therefore give the board an appearance like an "aged" wooden board.
- the wooden boards are sawn freshly sawn, ie in the "wet" state, dried in a drying chamber, whereby they are held in a forced position by pressing, so that they cannot warp in air as when drying, but are kept flat become.
- the pressing is preferably carried out on the entire board surface which is to become the visible surface and is between 50 kPa and 110 kPa (approx. 0.5 kp / cm 2 to 1 kp / cm 2 ). Drying takes place at a temperature between 60 ° C and 95 ° C, preferably at 80 ° C to 90 ° C and for about 20 hours. During this drying process, the wooden board does not remain completely flat despite the pressing.
- this structure corresponds to a wooden board that makes an "aged" impression. According to the invention, this structure is obtained by not, as is customary, planing the boards smoothly after the drying process, but the structure of these slight unevenness is maintained by grinding the board according to the invention with a soft plate to remove the rough spots to smooth out.
- the wood is preferably sanded with two counter-rotating sanding pads. If sanding in one direction with just one sanding disc, short fiber ends of the wood can still remain because they are brushed in one direction. If a further grinding takes place in the opposite direction, these fiber residues are also removed.
- the surface of the boards is processed by milling in order to eliminate the sawing marks.
- a planing machine is used to remove the saw marks, in which the board is carried out under a planing roller with, for example, four knives. Each of these knives exerts a certain pressure when struck on the wood, by which the board is slightly compressed at this point. If the wood gets wet again later and can then swell, these pressure points open again and the wood accordingly becomes slightly wavy. Because of its regularity, this ripple does not correspond to a natural impression of an aged wooden board. If, according to this embodiment of the invention, the wooden board is not planed but machined with a milling cutter, there are no such pressure points and thus there is also no risk of the wooden board being wavy.
- the wooden boards are stacked on top of one another, a heating plate being placed between each two adjacent wooden boards.
- This stack is located in a housing that is open at the top but otherwise closed on all sides.
- the stack formed in this way is compressed by mechanical pressure and the space in which the stack is located is evacuated to a pressure between 50 and 150 mbar. Since there is a heating plate between the successive boards, which cannot warp during the drying process, each board lies between two flat plates, so that there can be no major distortions within the board during the drying process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Drying Of Solid Materials (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10137256A DE10137256A1 (de) | 2001-07-31 | 2001-07-31 | Verfahren zur Herstellung eines Brettes aus Massivholz |
DE10137256 | 2001-07-31 | ||
PCT/EP2002/007304 WO2003012354A1 (fr) | 2001-07-31 | 2002-07-02 | Procede pour la production d'une planche en bois massif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1412685A1 true EP1412685A1 (fr) | 2004-04-28 |
EP1412685B1 EP1412685B1 (fr) | 2006-09-13 |
Family
ID=7693701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02760217A Expired - Lifetime EP1412685B1 (fr) | 2001-07-31 | 2002-07-02 | Procede pour la production d'une planche en bois massif |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1412685B1 (fr) |
AT (1) | ATE339663T1 (fr) |
DE (2) | DE10137256A1 (fr) |
ES (1) | ES2272756T3 (fr) |
WO (1) | WO2003012354A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2554347A1 (fr) | 2011-08-02 | 2013-02-06 | Bimbo Holzwerk GmbH & Co. KG | Procédé de fabrication d'éléments en bois |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1026373C2 (nl) * | 2004-06-10 | 2005-12-14 | Houtindustrie Schijndel B V | Werkwijze voor het behandelen van houtdelen. |
FR2900859A1 (fr) * | 2006-05-12 | 2007-11-16 | Prodeo Soc | Procede de traitement du bois et dispositif correspondant |
DE102010015992B4 (de) * | 2010-03-16 | 2012-04-19 | Wimmer Gmbh | Verfahren zur Herstellung von Holzbrettern, welche eine der Holzstruktur entsprechende Oberfläche aufweisen |
CN106271965B (zh) * | 2016-08-31 | 2018-06-22 | 嘉兴市申豪塑胶有限公司 | 一种木皮打磨烘干一体机 |
CN108177209B (zh) * | 2017-12-29 | 2019-03-29 | 南京林业大学 | 一种木质材料压缩密实化的方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2387595A (en) * | 1943-08-02 | 1945-10-23 | Brunswick Balke Collender Co | Method and apparatus for drying lumber |
US3756295A (en) * | 1972-06-05 | 1973-09-04 | Timbercraft Inc | Device for simulating a hand hewn surface |
AR204636A1 (es) * | 1973-09-17 | 1976-02-20 | Koppelman Edward | Procedimiento y un aparato para secar madera |
-
2001
- 2001-07-31 DE DE10137256A patent/DE10137256A1/de not_active Withdrawn
-
2002
- 2002-07-02 DE DE50208155T patent/DE50208155D1/de not_active Expired - Lifetime
- 2002-07-02 EP EP02760217A patent/EP1412685B1/fr not_active Expired - Lifetime
- 2002-07-02 WO PCT/EP2002/007304 patent/WO2003012354A1/fr active IP Right Grant
- 2002-07-02 AT AT02760217T patent/ATE339663T1/de active
- 2002-07-02 ES ES02760217T patent/ES2272756T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03012354A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2554347A1 (fr) | 2011-08-02 | 2013-02-06 | Bimbo Holzwerk GmbH & Co. KG | Procédé de fabrication d'éléments en bois |
Also Published As
Publication number | Publication date |
---|---|
DE10137256A1 (de) | 2003-02-13 |
WO2003012354A1 (fr) | 2003-02-13 |
ATE339663T1 (de) | 2006-10-15 |
EP1412685B1 (fr) | 2006-09-13 |
ES2272756T3 (es) | 2007-05-01 |
DE50208155D1 (de) | 2006-10-26 |
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