[go: up one dir, main page]

EP0592957A1 - Procédé et dispositif pour dresser des lamelles de bois - Google Patents

Procédé et dispositif pour dresser des lamelles de bois Download PDF

Info

Publication number
EP0592957A1
EP0592957A1 EP93116315A EP93116315A EP0592957A1 EP 0592957 A1 EP0592957 A1 EP 0592957A1 EP 93116315 A EP93116315 A EP 93116315A EP 93116315 A EP93116315 A EP 93116315A EP 0592957 A1 EP0592957 A1 EP 0592957A1
Authority
EP
European Patent Office
Prior art keywords
section
bending
wooden
alternating bending
pressing
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
Application number
EP93116315A
Other languages
German (de)
English (en)
Other versions
EP0592957B1 (fr
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.)
Gebrueder Linck Maschinenfabrik Gatterlinck GmbH and Co KG
Original Assignee
Gebrueder Linck Maschinenfabrik Gatterlinck 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 Gebrueder Linck Maschinenfabrik Gatterlinck GmbH and Co KG filed Critical Gebrueder Linck Maschinenfabrik Gatterlinck GmbH and Co KG
Publication of EP0592957A1 publication Critical patent/EP0592957A1/fr
Application granted granted Critical
Publication of EP0592957B1 publication Critical patent/EP0592957B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B27H—BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
    • B27H1/00—Bending wood stock, e.g. boards

Definitions

  • the invention relates to a method for straightening wooden slats and similar boards, in particular parquet slats produced by cutting non-cutting from a square timber, the wooden slats passing through at least one bending zone.
  • Wooden slats for example short boards or parquet slats, have a curvature or a twist, particularly in the case of non-cutting production. In most cases, they must therefore be straightened before further processing in order to eliminate this curvature or twist caused by the manufacture.
  • the bending angle of the wooden lamella resulting in the bending zone must be adjusted in such a way that the resulting permanent deformation of the wooden lamella just compensates for the curvature to be eliminated. Therefore, a separate setting is required in each individual case.
  • a swirl of the wooden lamella caused by the chipless separation of the wooden lamella from a squared timber by an inclined knife cannot be compensated with this known device.
  • devices for rotating wooden slats are known (DE-A-37 01 127), in which the wooden slats pass through a board guide channel provided with a longitudinal twist in the longitudinal direction.
  • the adjustment of the board guide channel must take place in such a way that the permanent deformation of the wooden lamella thereby compensates for the twist caused by the manufacture. This requires a relatively complicated structure of the device and requires a separate setting for each individual case.
  • the object of the invention is therefore to provide a method of the type mentioned at the outset and a device suitable for carrying out the method, which enables reliable straightening of wooden slats, in particular parquet slats produced without cutting, without a separate adjustment to the production-related curved or twisted Shape of the wooden slats is required.
  • this object is achieved in that the wooden lamellas run through an alternating bending section consisting of a plurality of oppositely acting bending zones when heated.
  • the wooden lamellae are pressed after passing through the alternating bending section and then in a pressing section between flat pressing surfaces, wherein they are advantageously cooled in the pressing section.
  • the process of solidifying the wooden lamella in the flat state is considerably accelerated, so that the pressing distance or the dwell time of the wooden lamellae in the pressing section can be chosen to be smaller.
  • the successive bending processes in the alternating bending section can be carried out with approximately the same bending angle.
  • the individual successive bending processes carried out in the alternating bending line are preferably carried out with a bending angle that decreases in the direction of passage.
  • the relatively strong alternating bend at the beginning of the alternating bending section initially eliminates the original deformation of the wooden lamella; the alternating bending processes that then subside lead the wooden lamella in the planes Condition that it occupies in the press section. This ensures that no or at most a very slight deformation of the wooden lamella has to be eliminated during the pressing process. Therefore, there is no danger that after the pressing process the wooden lamella will still have a portion of elastic deformation which would result in a change in shape after the pressing process has ended.
  • a preferred device for carrying out the method according to the invention is characterized in that two rows of bending rollers are arranged at a distance above one another in the alternating bending line, which form between them a through channel which is traversed in the longitudinal direction by the wooden lamellae and which is at least in its initial section undulating.
  • the alternating bending line can be arranged downstream of a press line. This provides a structurally simple way of subjecting the wooden slats to the required alternating bending processes in a rapid pass in a narrow space.
  • the through-channel is expediently delimited on its upper side and underside by a guide belt, against which the bending rollers each rest.
  • the device shown in FIGS. 1-3 is used to straighten parquet lamellae 1, which were produced by cutting from a square timber without cutting.
  • the parquet slats 1 pass through an alternating bending section 2 in their longitudinal direction.
  • the alternating bending section 2 has two rows of bending rollers 4.
  • the two rows are spaced one above the other in such a way that between them they form a through-channel 5 through which the wooden slats 1 pass in the longitudinal direction.
  • the passage 5 is delimited on its top and on its bottom by a guide belt 6 and 7, respectively, against which the bending rollers 4 rest.
  • the two guide belts 6 and 7 are designed as endless belts, preferably steel belts, which are driven.
  • the deflection rollers 8, 9 are preferably driven.
  • the bending rollers 4 of each row are each offset from the two adjacent bending rollers 4 of the other row in such a way that the through-channel 5 has an undulating shape.
  • the bending rollers 4 of the two rows are arranged so that the distance between the two rows of rollers is less than the total thickness resulting from the thickness of the two guide belts 6, 7 and the thickness of the wooden slats 1.
  • the wooden slats 1 can already be heated by the previous manufacturing process; however, it is also possible to arrange a heating device (not shown) through which the wooden lamellae runs before the alternating bending section 2.
  • the mutual distance between the two rows of bending rollers 4 increases in the direction of passage, so that the individual successive bending operations carried out in the alternating bending section 2 are carried out with a decreasing angle of bending in the direction of passage.
  • the wooden lamellae 1 emerging from the alternating bending section 2 are straightened. They retain this shape, since they are cooled during the straightening process or immediately afterwards to such an extent that the wood constituents, which can be deformed in the warm state, harden liguin and pectin.
  • the wooden lamellae 1 After exiting the alternating bending section 2 (left in FIG. 3), the wooden lamellae 1 can then pass through a pressing section 3 in the transverse direction, in which case they can be cooled further (FIG. 2).
  • the pressing section 3 downstream of the alternating bending section 2 has an upper, endlessly rotating press belt 10 and a lower, endlessly rotating press belt 11, which are driven. Since the two press belts 10, 11 forming the press section 3 extend transversely to the direction of passage of the alternating bending section 2, the wooden slats 1 between the two press belts 10, 11 lie side by side in the transverse direction conveyed and reach after the outlet of the pressing section 3 on a stack or transport device 12 only indicated schematically.
  • the two press belts 10, 11 are pressed against the wooden slats 1 received between them in order to keep them in the flat state.
  • a cooling device 13 is arranged in the illustrated embodiment, through which the wooden fins 1 are cooled. As shown in FIG. 2, the cooling device is located within the two press belts 10, 11. It cools the press belts 10, 11, which are preferably designed as steel belts, each from the rear. Depending on the type of wood, the cooling device 13 can also be dispensed with.
  • the length and the transport speed of the press belts 10, 11 is so matched to the throughput speed of the wooden slats that the dwell time of the wooden slats in the pressing section 3 is sufficient to ensure solidification of the wooden slats 1 in the flattened form.
  • the pressing section 3 shown transversely to the alternating bending section 2 instead of the arrangement of the pressing section 3 shown transversely to the alternating bending section 2, provision can also be made to arrange the pressing section 3 'in the extension of the alternating bending section 2, so that the wooden slats 1 then also pass through the pressing section 3' in the longitudinal direction, as shown in FIG. 4.
  • the wooden lamellae 1 are pressed into the flat shape in the pressing section 3 'formed by an extension of the alternating bending section 2 between the flat pressing surfaces arranged one above the other and can also be cooled there by a cooling device 13'.
  • the wooden lamellae 1 are then delivered to a transport device 12 'and transported away.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
EP93116315A 1992-10-10 1993-10-08 Procédé et dispositif pour dresser des lamelles de bois Expired - Lifetime EP0592957B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4234236 1992-10-10
DE4234236A DE4234236A1 (de) 1992-10-10 1992-10-10 Verfahren und Vorrichtung zum Richten von Holzlamellen

Publications (2)

Publication Number Publication Date
EP0592957A1 true EP0592957A1 (fr) 1994-04-20
EP0592957B1 EP0592957B1 (fr) 1996-04-10

Family

ID=6470183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116315A Expired - Lifetime EP0592957B1 (fr) 1992-10-10 1993-10-08 Procédé et dispositif pour dresser des lamelles de bois

Country Status (3)

Country Link
EP (1) EP0592957B1 (fr)
AT (1) ATE136488T1 (fr)
DE (2) DE4234236A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686465A1 (fr) * 1994-06-06 1995-12-13 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG Méthode et dispositif pour produire des lamelles de bois
AT405036B (de) * 1995-03-22 1999-04-26 Berger Johann Verfahren und anlage zur herstellung von neuem längsholz-, insbesondere leisten- und/oder stabmaterial
US6218475B1 (en) 1997-12-04 2001-04-17 Kaneka Corporation Alkenyl containing isobutylene block copolymer and process for producing it
US6348546B2 (en) 1997-12-04 2002-02-19 Kaneka Corporation Alkenyl-containing isobutylene group block copolymer and process for producing it
FR2888769A1 (fr) * 2005-07-21 2007-01-26 Pascal Mathieu Procede de traitement de douelles de barriques pour un recyclage industriel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816304A (en) * 1997-08-04 1998-10-06 Triangle Pacific Corporation Apparatus and method for increasing the flexibility of and straightening flooring strips

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931129C (de) * 1952-11-04 1955-08-01 Martin Grimme Verfahren und Vorrichtung zum Herstellen von flachen Kleiderbuegeln mit ebenen Seitenflaechen
WO1988000517A1 (fr) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif de decoupage sans eclats de troncs d'arbres en produits de bois
WO1988005371A1 (fr) * 1987-01-16 1988-07-28 Gebrüder Linck Maschinenfabrik "Gatterlinck" Gmbh Dispositif pour dresser des planches et analogue
US4793392A (en) * 1988-02-03 1988-12-27 Oakridge Railing And Stair Company Inc. Bending device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207548C2 (de) * 1982-03-03 1984-02-23 Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch Vorrichtung zur Herstellung von flachen Holzerzeugnissen, wie Brettern
DE3623235A1 (de) * 1986-07-10 1988-01-21 Wurster & Dietz Gmbh U Co Masc Verfahren und vorrichtung zum zerlegen von baumstaemmen in holz-fertigerzeugnisse
DE3815304A1 (de) * 1988-05-05 1989-11-16 Abbey Etna Machine Co Verfahren und vorrichtung zum biegen bzw. richten von profilen und baendern mit walzen bzw. rollen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931129C (de) * 1952-11-04 1955-08-01 Martin Grimme Verfahren und Vorrichtung zum Herstellen von flachen Kleiderbuegeln mit ebenen Seitenflaechen
WO1988000517A1 (fr) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif de decoupage sans eclats de troncs d'arbres en produits de bois
WO1988005371A1 (fr) * 1987-01-16 1988-07-28 Gebrüder Linck Maschinenfabrik "Gatterlinck" Gmbh Dispositif pour dresser des planches et analogue
DE3701127A1 (de) * 1987-01-16 1988-07-28 Linck Masch Gatterlinck Vorrichtung zum richten von brettern u.dgl.
US4793392A (en) * 1988-02-03 1988-12-27 Oakridge Railing And Stair Company Inc. Bending device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686465A1 (fr) * 1994-06-06 1995-12-13 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG Méthode et dispositif pour produire des lamelles de bois
AT405036B (de) * 1995-03-22 1999-04-26 Berger Johann Verfahren und anlage zur herstellung von neuem längsholz-, insbesondere leisten- und/oder stabmaterial
US6218475B1 (en) 1997-12-04 2001-04-17 Kaneka Corporation Alkenyl containing isobutylene block copolymer and process for producing it
US6348546B2 (en) 1997-12-04 2002-02-19 Kaneka Corporation Alkenyl-containing isobutylene group block copolymer and process for producing it
FR2888769A1 (fr) * 2005-07-21 2007-01-26 Pascal Mathieu Procede de traitement de douelles de barriques pour un recyclage industriel

Also Published As

Publication number Publication date
DE59302174D1 (de) 1996-05-15
ATE136488T1 (de) 1996-04-15
DE4234236A1 (de) 1994-04-14
EP0592957B1 (fr) 1996-04-10

Similar Documents

Publication Publication Date Title
DE60222785T2 (de) Verfahren und gerät zur herstellung von schienen
DE3127190C2 (fr)
DE1596625B2 (de) Verfahren und Vorrichtung zum Härten von Glastafeln
EP2464473B1 (fr) Procédé pour l'ébavurage multibrin de brins de fil et dispositif correspondant
EP0592957B1 (fr) Procédé et dispositif pour dresser des lamelles de bois
DE3622926A1 (de) Kontinuierliches mehrstufiges walzwerk
CH648799A5 (de) Vorrichtung zum ausrichten von laenglichen gegenstaenden.
EP0342196B1 (fr) Dispositif pour dresser des planches et analogue
DE2712536C2 (de) Verfahren zum Herstellen gleichzeitig mehrerer, parallel in einer Ebene liegender Metalldrähte und -stäbe mit rundem Querschnitt sowie Strangpreßmatrize zur Durchführung des Verfahrens
DE3031217C2 (de) Verfahren und Vorrichtung zum Trocknen eines Furnierblattes
DE19828824C2 (de) Verfahren und Presse zum kontinuierlichen Betrieb im Zuge der Herstellung von Spanplatten, Laminatplatten o. dgl.
EP0504163B1 (fr) Procede de dressage sur galets, de planches et analogue
DE612622C (de) Strangpressmatrize
DE2140585A1 (de) Speckpresse
EP0216215B1 (fr) Procédé et dispositif de fabrication d'un ruban à maillons de fil métallique
DE704659C (de) Walzverfahren zur Erzeugung von Blechen oder Profilen
EP0686465B1 (fr) Méthode et dispositif pour produire des lamelles de bois
EP0162188A1 (fr) Dispositif de contrôle pour tiges pouvant rouler
EP0515808A2 (fr) Méthode d'usinage utilisant le rayonnement pour bandes doubles
DE3022691A1 (de) Arrondiervorrichtung fuer scharfkantige bandraender
EP0524929B1 (fr) Dispositif pour le degauchissage de planches
DE2002637A1 (de) Seiherstab fuer Spindelpressen od.dgl. und Verfahren zu seiner Herstellung
EP0271481A2 (fr) Procédé et ébauche pour fabriquer des outils
DE3024427A1 (de) Arrondiervorrichtung fuer scharfkantige bandraender
DE1602522C3 (de) Vorrichtung zum Walzen von mit Querrippen versehenen Blechen

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: A1

Designated state(s): AT CH DE DK ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19940314

17Q First examination report despatched

Effective date: 19950331

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960410

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960410

Ref country code: DK

Effective date: 19960410

REF Corresponds to:

Ref document number: 136488

Country of ref document: AT

Date of ref document: 19960415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59302174

Country of ref document: DE

Date of ref document: 19960515

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG PATENTANWAELTE

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19960410

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961025

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010911

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011019

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20011025

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011029

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021008

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030501

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051008