EP0636061B1 - Dispositif de decoupage de lamelles dans du bois equarri, sans formation de copeaux - Google Patents

Dispositif de decoupage de lamelles dans du bois equarri, sans formation de copeaux Download PDF

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Publication number
EP0636061B1
EP0636061B1 EP93911450A EP93911450A EP0636061B1 EP 0636061 B1 EP0636061 B1 EP 0636061B1 EP 93911450 A EP93911450 A EP 93911450A EP 93911450 A EP93911450 A EP 93911450A EP 0636061 B1 EP0636061 B1 EP 0636061B1
Authority
EP
European Patent Office
Prior art keywords
timber
knife
edge
guiding surface
distance
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.)
Expired - Lifetime
Application number
EP93911450A
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German (de)
English (en)
Other versions
EP0636061A1 (fr
Inventor
Siegmar Gönner
Heinz-Hubert Braun
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 GmbH and Co KG Gatterlinck Maschinen Fabrik
Original Assignee
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
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 GmbH and Co KG Gatterlinck Maschinen Fabrik filed Critical Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Publication of EP0636061A1 publication Critical patent/EP0636061A1/fr
Application granted granted Critical
Publication of EP0636061B1 publication Critical patent/EP0636061B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/06—Cutting strips from a stationarily- held trunk or piece by a rocking knife carrier, or from rocking trunk or piece by a stationarily-held knife carrier; Veneer- cutting machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0267—Splitting

Definitions

  • the invention relates to a device for the non-cutting cutting of wooden lamellae from a squared timber, with a machine frame and with a feed device which conveys the squared timber in the longitudinal direction against an obliquely arranged knife edge, with a pressure bar running at a distance from the knife edge and attached to a wood guide surface .
  • Such a difference in thickness of the wooden lamella in the transverse direction also occurs when the knife edge is arranged exactly parallel to the wooden guide surface. Since that too cutting wood lamella is compressed during the cutting process between the knife edge and the pressure bar attached to the wood guide surface, the compressibility of the wood, which is usually cut when wet, affects the resulting thickness of the wood lamella.
  • the compressibility depends on the course of the annual rings in the wood cross-section, in particular on the angle at which the annual rings run to the surface of the wooden lamella. Because of the approximately circular course of the annual rings in the trunk cross-section, this angle of the annual rings to the surface of the wooden lamella varies over their width. This leads to the fact that, in most cases, the wood lamellae produced already have different thicknesses on their two longitudinal edges immediately after the cutting process, which in this context is referred to as "transverse taper".
  • the adjustment of the knife edge is controlled as a function of the thickness of the squared timber measured in such a way that the remaining lamella after the last cutting process has the same thickness as the other wooden lamellae, one each specified tolerance is observed.
  • the squared timber is tapered in the transverse direction due to different compressibility, these conical deviations can add up in several successive cutting operations so that the resulting lamella has such a strong taper in the transverse direction that it is unsuitable for further processing, although its thickness is still within the allowable tolerance.
  • the object of the invention is therefore to design a device of the type mentioned in the introduction so that a conicity error occurring during the cutting process can be compensated for automatically.
  • This object is achieved in that two measuring devices for the thickness of the squared timber are arranged at a distance from one another in the transverse direction of the squared timber and that a relative pivoting between the knife edge and the wooden guide surface connected to the pressure bar is dependent on a pivot axis which runs essentially transversely to the knife edge of the measurement result determined by the measuring devices is carried out by means of a swivel control.
  • a taper of the squared timber is recorded in the transverse direction. Due to the subsequent relative pivoting of the knife edge and the wooden guide surface carrying the pressure bar to each other, the cutting process is changed so that the taper of the squared timber is compensated so much that the remaining lamella has no transverse taper beyond the permissible level.
  • the thickness of the remaining lamella can either already correspond to the thickness of the remaining lamellae or can be counted larger, a subsequent machining process then taking place in which the remaining lamella receives the desired thickness.
  • the relative pivoting can be carried out in such a way that the pressure bar is fixed to the frame and the timber guide surface guiding the timber with the pressure bar attached therefrom and that the knife edge is attached to a knife carrier which is pivotably mounted in the machine frame.
  • the knife edge can also be fixed to the frame and the wooden guide surface connected to the pressure bar can be pivoted on the machine frame.
  • a taper in the longitudinal direction of the squared timber is also compensated for.
  • the distance between the knife edge and the wood guide surface connected to the pressure bar can be adjusted during the passage of a squared timber by means of an adjusting device as a function of at least two thickness measurements of the squared timber made in the longitudinal distance.
  • the device shown in FIG. 1 has a feed conveyor 1, for example a roller bed, on each of which a square timber 2 is conveyed.
  • a feed device 6 which in the exemplary embodiment shown has a driven, height-adjustable feed belt 7, against a wooden guide surface 8 designed as a guide table, on the edge of which a pressure bar 9, which runs obliquely at an acute angle to the longitudinal and wooden conveying direction is firmly attached.
  • a knife edge 10 is arranged, against which the squared timber 2 is pressed by the feed device 6.
  • the knife edge 10 cuts off a wooden lamella 11 from the underside of the square timber 2, which is led off obliquely downward, as is shown schematically in FIG. 1.
  • the remaining squared timber 2 ' is transported back to the feed conveyor 1 after leaving the cutting station 5 and is subjected to a cutting operation again. This process is repeated until only a remaining lamella remains of the squared timber 2 or 2 '.
  • the timber guide surface 8 guiding the squared timber 2 and the pressure bar 9 connected thereto are arranged fixed to the frame (FIG. 4).
  • the knife edge 10 is formed on a knife 12 which is attached to the top of a knife holder 13.
  • the knife carrier 13 is pivotally mounted in the machine frame 14, its horizontal pivot axis 15 running transversely to the knife edge 10 in the plan view (FIG. 2).
  • the pivot axis 15 is formed by a shaft 16 fastened in the box-shaped knife carrier 13, which is mounted with its two shaft ends in a pivot bearing 17 of the machine frame 14.
  • the knife carrier 13 is supported at a distance from its pivot axis 15 on a height-adjustable abutment 18.
  • a pressing device 19 the knife carrier 13 is pressed against the abutment 18 without play.
  • the abutment 18 has a vertically movable support 20 which rests with a lower inclined surface 21 on a horizontally displaceable wedge 22.
  • the wedge 22 is horizontally adjustable via a threaded spindle 24 connected to an adjusting motor 23 in order to achieve a height adjustment of the abutment 18.
  • Fig. 2 it is indicated schematically that the measurement results supplied by the measuring devices 3, 4 are fed to an evaluation circuit 25.
  • the taper of the squared timber 2 in the transverse direction is determined as a difference in thickness at the measuring points 3, 4.
  • the evaluation circuit 25 delivers a setting command to the adjusting motor 23, which pivots the knife edge 10 relative to the pressure bar 9 fixed to the frame about the pivot axis 15 in order to compensate for the measured conicity at least to such an extent that the remaining lamella does not have an impermissibly large conicity in the transverse direction.
  • the knife carrier 13 can also be pivoted about another pivot axis, provided that this only forms an angle with the knife edge 10 that differs significantly from 0 °.
  • the knife carrier 13 can be pivoted about a pivot axis running in the conveying direction and longitudinal direction of the square timber 2. It is only important that the relative angular position between the knife edge 10 and the wooden guide surface 8 or the pressure bar 9 changes during the pivoting movement.
  • the knife edge 10 is fixed to the frame and the wooden guide surface 8 executes the controlled pivoting movement.
  • FIGS. 6 and 7. This construction principle is realized in the embodiment according to FIGS. 6 and 7.
  • the wooden guide surface 8 with the pressure bar 9 is attached to a pressure bar slide 26 which is adjustable in height in a slide guide carrier 27 and thus can be moved transversely to the knife edge.
  • the pressure bar slide 26 is supported on the machine frame 14 by means of two lifting elements 28, 29 which can be adjusted separately and perpendicular to the plane of the wood.
  • the two lifting elements 28, 29 are arranged at a distance from one another in the longitudinal direction of the pressure bar 9 and are each formed, for example, by a threaded spindle drive.
  • the slide guide carrier 27 is pivotally mounted on a bearing block 31 connected to the machine frame 14 via a bearing shaft 30.
  • the pivot axis 32 formed by the shaft 30 runs transversely to the pressure bar 9 or to the knife edge 10 and parallel and at a distance from the wooden guide surface 8.
  • the wooden guide surface 8 with the pressure bar 9 attached to it is described in the above Way pivoted relative to the knife edge 10 in order to compensate for a taper of the squared timber 2 detected by the measuring devices 3, 4 in the transverse direction.
  • the evaluation circuit 25 controls the two lifting elements 28, 29 in dependence on the measurement result of the measuring devices 3, 4.
  • At least two thickness measurements of the squared timber can be carried out in the longitudinal distance by means of the measuring devices 3, 4 or with only one of these two measuring devices 3, 4.
  • the measuring devices 3, 4 or one of these two measuring devices 3, 4 are actuated once at the beginning of the square timber 2 and a further time at the end of the square timber 2.
  • the measured values thus obtained provide information about the taper of the square timber 2 in the longitudinal direction, i.e. about the differences in thickness at the beginning and end of the square timber 2.
  • the measurement result obtained in this way is processed in the evaluation circuit 25 'in such a way that the two lifting devices 28, 29 are actuated during the passage of the squared timber 2 such that the distance between the knife edge 10 and the wooden guide surface 8 changes continuously during the passage. This compensates for the taper of the squared timber 2 in the longitudinal direction 2.
  • the lifting devices 28, 29 are actuated by the evaluation circuit 25 ', that both a swivel adjustment and a continuous height adjustment of the wooden guide surface 8 takes place during the passage.
  • the adjustment movement controlled by the evaluation device 25 ' can also be carried out on the knife edge 10, which for this purpose is cross-adjustable and, if necessary, additionally pivoted in the machine frame 14. It is also possible to separate the swivel adjustment to compensate for a taper in the transverse direction and the continuous transverse adjustment during the passage of the squared timber in such a way that either the knife edge 10 or the wooden guide surface 8 only carries out the swivel adjustment and the other part only carries out the transverse adjustment .

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (11)

  1. Dispositif de découpe, sans formation de copeaux, de lamelles de bois (11) dans du bois équarri (2), comportant un bâti de machine et un dispositif d'avancement (6), qui déplace le bois équarri (2) dans la direction longitudinale contre une lame de couteau (10) agencée en oblique vis-à-vis du bois équarri, avec une barre de pression (9) s'étendant à distance de la lame de couteau (10) et montée sur une surface (8) de guidage du bois, caractérisé en ce que deux dispositifs de mesure (3, 4) de l'épaisseur du bois équarri (2) sont agencés dans la direction transversale du bois équarri (2) à distance l'un de l'autre et en ce qu'un pivotement relatif entre la lame de couteau (10) et la surface (8) de guidage du bois reliée à la barre de pression (9) autour d'un axe de pivotement (15) s'étendant en substance transversalement à la lame de couteau (10) est effectué, en fonction du résultat de la mesure déterminée par les dispositifs de mesure (3, 4), par un dispositif de commande de pivotement (23, 25, 28, 29).
  2. Dispositif selon la revendication 1, caractérisé en ce que la surface (8) de guidage du bois guidant le bois équarri (2) avec la barre de pression (9) qui y est montée est agencée fixe sur le bâti et en ce que la lame de couteau (10) est installée sur un porte-couteau (13) monté à pivotement sur le bâti (14) de la machine.
  3. Dispositif selon la revendication 1, caractérisé en ce que la lame de couteau (10) est montée fixe sur le bâti et en ce que la surface (8) de guidage du bois reliée à la barre de pression (9) est montée à pivotement sur le bâti (14) de la machine.
  4. Dispositif selon la revendication 2, caractérisé en ce que la lame de couteau (10) est montée sur un porte-couteau (13), qui peut être soumis à un pivotement sur le bâti (14) de la machine autour d'un axe de pivotement (15) s'étendant transversalement à la lame de couteau (10) et parallèlement et à distance de la surface (8) de guidage du bois, par le dispositif de commande de pivotement.
  5. Dispositif de découpe, sans formation de copeaux, de lamelles de bois (11) dans du bois équarri (2), comportant un bâti de machine et un dispositif d'avancement (6), qui déplace le bois équarri (2) dans la direction longitudinale contre une lame de couteau (10) agencée en oblique vis-à-vis du bois équarri, avec une barre de pression (9) s'étendant à distance de la lame de couteau (10) et montée sur une surface (8) de guidage du bois et au moins un dispositif de mesure détectant l'épaisseur du bois équarri, selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la distance entre la lame de couteau (10) et la surface (8) de guidage du bois reliée à la barre de pression (9) peut être réglée, au cours du passage du bois équarri (2), par un dispositif de réglage (25', 28, 29) en fonction d'au moins deux mesures de l'épaisseur du bois équarri (2) effectuées à distance longitudinale.
  6. Dispositif de découpe, sans formation de copeaux, de lamelles de bois (11) dans du bois équarri (2), comportant un bâti de machine et un dispositif d'avancement (6), qui déplace le bois équarri (2) dans la direction longitudinale contre une lame de couteau (10) agencée en oblique vis-à-vis du bois équarri, avec une barre de pression (9) s'étendant à distance de la lame de couteau (10) et montée sur une surface (8) de guidage du bois et au moins un dispositif de mesure détectant l'épaisseur du bois équarri, caractérisé en ce que la distance entre la lame de couteau (10) et la surface (8) de guidage du bois reliée à la barre de pression (9) peut être réglée, au cours du passage du bois équarri (2), par un dispositif de réglage (25', 28, 29) en fonction d'au moins deux mesures de l'épaisseur du bois équarri (2) effectuées à distance longitudinale.
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que la surface (8) de guidage du bois guidant le bois équarri (2) avec la barre de pression (9) qui y est montée est agencée fixe sur le bâti et en ce que la lame de couteau (10) est montée sur un porte-couteau (13) monté sur le bâti (14) de la machine de manière à pouvoir se déplacer transversalement.
  8. Dispositif selon la revendication 5 ou 6, caractérisé en ce que la lame de couteau (10) est montée fixe sur le bâti et en ce que la surface (8) de guidage du bois reliée à la barre de pression (9) est montée sur le bâti (14) de la machine de manière à pouvoir se déplacer transversalement.
  9. Dispositif selon la revendication 7, caractérisé en ce que la barre de pression (9) est montée, avec la surface (8) de guidage du bois, sur un chariot (26) qui peut se déplacer dans un porte-glissière (27) transversalement à la lame de couteau (10).
  10. Dispositif selon les revendications 1 et 9, caractérisé en ce que le porte-glissière (27) du chariot peut être soumis à un pivotement autour d'un axe de pivotement (32) s'étendant transversalement à la barre de pression (9) ou à la lame de couteau (10) et parallèlement et à distance de la surface (8) de guidage du bois, par le dispositif de commande de pivotement (25', 28, 29).
  11. Dispositif selon la revendication 5 ou 6, caractérisé en ce que la lame de couteau (10) ou la surface (8) de guidage du bois avec la barre de pression (9) est soutenue sur le bâti (14) de la machine via deux éléments de levage (28, 29) déplaçables séparément en substance perpendiculairement au plan du bois, lesdits éléments étant agencés à distance l'un de l'autre dans la direction longitudinale de la lame de couteau (10) ou de la barre de pression (9).
EP93911450A 1992-04-14 1993-04-07 Dispositif de decoupage de lamelles dans du bois equarri, sans formation de copeaux Expired - Lifetime EP0636061B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4212432A DE4212432C2 (de) 1992-04-14 1992-04-14 Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz
DE4212432 1992-04-14
PCT/EP1993/000865 WO1993020986A1 (fr) 1992-04-14 1993-04-07 Dispositif de decoupage de lamelles dans du bois equarri, sans formation de copeaux

Publications (2)

Publication Number Publication Date
EP0636061A1 EP0636061A1 (fr) 1995-02-01
EP0636061B1 true EP0636061B1 (fr) 1996-06-26

Family

ID=6456770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93911450A Expired - Lifetime EP0636061B1 (fr) 1992-04-14 1993-04-07 Dispositif de decoupage de lamelles dans du bois equarri, sans formation de copeaux

Country Status (8)

Country Link
US (1) US5400843A (fr)
EP (1) EP0636061B1 (fr)
JP (1) JPH07500545A (fr)
AT (1) ATE139725T1 (fr)
CA (1) CA2121242A1 (fr)
DE (2) DE4212432C2 (fr)
FI (1) FI944743A0 (fr)
WO (1) WO1993020986A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123199C2 (de) * 1991-07-12 1994-09-01 Georg Witt Verfahren und Vorrichtung zum mechanischen Entfernen von Fremdstoffen vom Basismaterial eines plattenförmigen Informationsträgers
AT404107B (de) * 1996-06-13 1998-08-25 Rupert Hirnsperger Vorrichtung bzw. verfahren zum spanlosen schneiden von holzlamellen und brettern
US5881786A (en) * 1997-06-10 1999-03-16 Weyerhaeuser Company Method of producing wood strips for conversion into composite lumber products
DE19855803B4 (de) * 1998-12-03 2006-01-26 Gfm Gmbh Verfahren und Vorrichtung zum Herstellen einer Fase oder einer Keilnut an einem Werkstück
FI119962B (fi) * 2006-08-31 2009-05-29 Ponsse Oyj Menetelmä ja sovitelma puukappaleen mittaamiseksi puunkäsittelykoneessa
KR101059022B1 (ko) 2009-10-05 2011-08-23 김진수 에지밴딩기
DE102018111307A1 (de) * 2018-05-11 2019-11-14 Gaugler & Lutz Ohg Vorrichtung zur Bearbeitung eines oder mehrerer blockförmiger Werkstücke
CN108672949B (zh) * 2018-05-31 2021-06-25 芜湖众梦电子科技有限公司 一种用于汽车板材的压延和定向裁剪一体式设备
CN112847675A (zh) * 2021-01-08 2021-05-28 南京中睿格科技有限公司 一种精准切割木材的装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343294A1 (de) * 1983-11-30 1985-06-05 Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch Vorrichtung zur erzeugung von kantholz durch spanloses abtrennen von seitenbrettern
DE3623237A1 (de) * 1986-07-10 1988-01-21 Wurster & Dietz Gmbh U Co Masc Verfahren und vorrichtung zum spanlosen zerlegen eines baumstammes in holzerzeugnisse
DE3702909A1 (de) * 1987-01-31 1988-08-11 Linck Masch Gatterlinck Vorrichtung zur erzeugung von duennen brettern
DE3926396A1 (de) * 1989-08-10 1991-02-14 Linck Masch Gatterlinck Vorrichtung zum spanlosen zerlegen eines baumstammes in holzerzeugnisse
DE4026346A1 (de) * 1989-11-01 1991-05-02 Linck Masch Gatterlinck Verfahren zum spanlosen aufteilen eines kantholzes in bretter gleicher dicke
US5318083A (en) * 1991-01-30 1994-06-07 Firma Gebruder Linck Machinenfabrik "Gatterlinck" Gmbh & Co., Kg Apparatus for cutting and severing of a thin board from squared timber

Also Published As

Publication number Publication date
JPH07500545A (ja) 1995-01-19
WO1993020986A1 (fr) 1993-10-28
EP0636061A1 (fr) 1995-02-01
ATE139725T1 (de) 1996-07-15
FI944743A (fi) 1994-10-10
US5400843A (en) 1995-03-28
DE59303084D1 (de) 1996-08-01
CA2121242A1 (fr) 1993-10-28
DE4212432C2 (de) 1994-02-17
DE4212432A1 (de) 1993-10-21
FI944743A0 (fi) 1994-10-10

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