EP1365899B1 - Procede et dispositif pour decouper des bois ronds courbes dans un plan afin d'obtenir des produits ligneux - Google Patents

Procede et dispositif pour decouper des bois ronds courbes dans un plan afin d'obtenir des produits ligneux Download PDF

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Publication number
EP1365899B1
EP1365899B1 EP02718072A EP02718072A EP1365899B1 EP 1365899 B1 EP1365899 B1 EP 1365899B1 EP 02718072 A EP02718072 A EP 02718072A EP 02718072 A EP02718072 A EP 02718072A EP 1365899 B1 EP1365899 B1 EP 1365899B1
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EP
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Prior art keywords
round woods
curvature
round
woods
line
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EP02718072A
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German (de)
English (en)
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EP1365899A2 (fr
Inventor
Hans Dietz
Jean Gunnar Bergvall
Jürgen EDELMANN
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Esterer WD GmbH and Co
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Esterer WD GmbH and Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/007—Methods for subdividing trunks or logs essentially involving sawing taking into account geometric properties of the trunks or logs to be sawn, e.g. curvature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/04—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed chains or belts

Definitions

  • the invention relates to a method for disassembling curved in a plane round woods in wood products.
  • the invention further relates to a device for the decomposition of curved in a plane round wood in wood products.
  • Tree trunks When cutting tree trunks into wood products one always strives to achieve an optimal yield of wood. Tree trunks always have a shape tapering from the ground to the tip.
  • the tree trunk can be grown substantially straight or curved relative to its longitudinal axis. In such curved logs, it is sufficient in a first approximation to start from a single plane of curvature.
  • the aforementioned US 6,039,097 describes a device for the movement-controlled curve sawing of tree trunks.
  • the logs are fed in this known device transversely to its longitudinal direction by means of a transverse conveyor and measured in this way by means of a scanner. From the signals of the scanner, a bow line optimized for the yield is determined in a computer for a subsequent disassembly of the tree trunks.
  • the logs After deflection of its trajectory by 90 ° in the plane, the logs are fed in the longitudinal direction of a Zerlege aggregate, in the conveying direction behind a pair of Anflach-Spaner and a double-shaft circular saw are arranged.
  • the Anflach-Spaner are designed as rollers that flatten the tree trunks laterally with its peripheral surface.
  • the entire unit can be pivoted by means of adjusting cylinders about a vertical axis and moved transversely to the conveying direction, while a tree trunk is conveyed linearly through the unit.
  • the actuating cylinders are connected to motion controllers, which in turn receive control signals from the computer. In this way, out of the respective log longitudinally curved wood products are sawn, which are finished on the sawing surface.
  • a method is known in which a curved in a plane of curvature tree trunk is first measured in terms of its outer dimensions.
  • the tree trunk is then flattened parallel on two opposite sides, wherein the Anflachungsebene runs parallel to the curvature plane.
  • the tree trunk is then placed on one of the two flattened sides on a conveyor and fixed on this by means of a holding tool from above.
  • the conveyor is designed as a reciprocating carriage such that the entire tree trunk can be brought into engagement with a pair of band saws along its entire length, which laterally divide side boards from the flattened tree trunk.
  • the band saws are thereby continuously adjusted transversely to the conveying direction of the conveyor during the sawing process, so that side panels parallel to the curved center line of the tree trunk be divided constant thickness. After each pass, the bandsaw blades are additionally offset transversely to the direction of conveyance by a predetermined step corresponding to the thickness of the side board to be split next.
  • the known device is thus suitable only for relatively simple Zertechnischsvor réelle in which wood edged side boards are generated.
  • a curved tree trunk in a plane is also supported on a conveyor in a direction parallel to the plane of curvature by processing tools through.
  • processing tools consist of an initially arranged pair of Anflach-Zerspanern in conical design and extending in the plane of curvature axes of rotation and downstream band saw units, which are adjustable transversely to the conveying direction of the conveyor.
  • the dimensions of the curved tree trunk are detected in this known method immediately before the entry into the Anflach-Zerspaner by means of lateral, on the tree trunk adjacent probe.
  • a method is known in which a log that is curved in a plane of curvature is first aligned so that the convex side of the log is up in a vertical direction. The tree trunk is then first flattened at the lower ends and then subjected to a decomposition.
  • a method for cutting logs is known in which the logs are first profiled before dividing side boards or beams.
  • This is understood as a longitudinal processing of tree trunks with chipper tools, for example. Mills that attach certain corner or stair profiles along the tree trunk, and thus produce a so-called model, from which then side boards or beams can be divided in an optimal manner until then, if necessary a central main item remains.
  • a saw cut of finite depth is first guided along the corners or stair profiles to be cut out, in order to attach a longitudinal groove.
  • the subsequent Zerspanerwerkmaschinemaschinen then dives with the circle of his Zerspanermesser in this slot or groove, so that chips are produced, which have no thin leaking end in contrast to conventional wood chips.
  • a Zerspanerkopf with conical Spanermesserany is in the DE 30 45 107 C2 described.
  • the present invention is based on the object to improve methods and devices of the type mentioned in that the said disadvantages are avoided.
  • tree trunks with a curved shape in the most precise and economically opoptimal Way to dissect into wood products.
  • a profiling of the tree trunks and thus a disassembly in all-round finished wood products should be possible.
  • the invention makes it possible to achieve a considerably higher degree of optimization of the wood yield when cutting curved tree trunks.
  • the invention makes it possible to achieve a considerably higher degree of optimization of the wood yield when cutting curved tree trunks.
  • band saws can also be used to disassemble the roundwoods.
  • the feed and / or guide elements are rotated about an axis perpendicular to the plane of curvature.
  • This measure has the advantage that the non-linear conveying path for the round timbers can be constructed with conventional, vertical-axis elements in a structurally simple manner.
  • the feed and / or guide elements are rotated about an axis extending parallel to the plane of curvature.
  • This variant is advantageous if, for example, for reasons of a desired low overall height, a flat arrangement with horizontal-axis elements is preferred.
  • Another embodiment of the invention is characterized in that the second processing tools and / or the feed and / or guide elements are arranged at an input and / or at an output of a sawing unit for splitting the round timbers into boards or beams.
  • This embodiment illustrates that the invention can be used with advantage at different processing stations, preferably in saw units.
  • a particularly good effect is achieved according to the invention when the processing tools and / or the feed and / or guide elements are arranged in pairs on opposite sides of the roundwood.
  • the pairs of processing tools and / or feed and / or guide elements are arranged at a constant distance from each other.
  • This measure has the advantage that when entering the round timbers in machining tools immediately a guide surface in the region of the thick end is formed. This allows the logs to be guided safely from the start.
  • At least one of the machining tools mills, while in a second preferred field of application, the at least one machining tool saws.
  • the processing tools can consequently be designed as cutters, chippers, circular saws, band saws, etc.
  • round timbers are unrolled with their convex side before the step of nonlinear conveying on a linear guide extending in the conveying direction.
  • This measure has the advantage that the round logs are continuously guided in their transition from linear to non-linear conveyor.
  • FIG. 1 The device shown is a profiling system, the essential properties of which should first be summarized:
  • a curved tree trunk or, more generally, a roundwood is measured in a scanner ( Fig. 1A or IE). From the measured curvature of the tree trunk or model an arc of preferably constant curvature is determined, which allows an optimal yield of irregularly grown tree trunk.
  • the curved model is advanced exactly straight ahead in a first conveying phase.
  • a curved contour is worked out of the tree trunk by means of chippers (FIG. 1E).
  • the chippers rotate about an axis perpendicular to the plane of curvature and are also displaceable transversely to the conveying direction of the tree trunk for tracing the arc contour during the passage of the tree trunk.
  • the model produced in the aforementioned manner is guided in a second conveying phase along a curved conveying path by means of feed elements or rollers which are fixedly arranged during the passage of the model ( Fig. 1F ). Their axis also runs vertically to the plane of curvature.
  • the feed elements or rollers are preferably arranged in pairs to each other. In this way, the model is pushed through processing tools, for example.
  • the axes of the advancing elements or rollers, which run perpendicular to the plane of curvature, are previously adjusted individually in their position to the previously determined, e.g. set constant radius of curvature, such that the machining tools are each in the region of the arc peak.
  • this second funding phase it is also possible in this second funding phase to use feed elements whose axis is parallel to the plane of curvature.
  • the feed direction of the respective feed element is set to the curvature of the continuous model. This happens because the axes of these feed elements within the plane of curvature order a rotation axis are pivoted, which is perpendicular to the plane of curvature.
  • the latter feed elements are preferably used for removing the model from processing units, in particular from circular saw units ( Fig. 1G ).
  • Fig. 1A shows the access area to the illustrated embodiment of a device according to the invention.
  • About one in the left half of Fig. 1A recognizable and coming in the plane from above cross conveyor 10 tree trunks, or generally speaking round logs, in still undefined rotational position 12, 12 ', 12 "under deflection of their conveying path by 90 ° to a in Fig. 1A From left to right running longitudinal conveyor, eg a block train 14.
  • line II-II have the round timber 12 still in Fig. 2 shown natural circular cross-section. They are preferably conveyed on the Blockzug 14 with its thick end ahead.
  • the block train 14 conveys the roundwood 12, to a first scanner 16, in which the roundwood 12 is measured. This is (line III-III) in Fig. 3 shown.
  • the block train 14 conveys the log 12 further to a turning device 18, as shown in FIG Fig. 1B is shown.
  • a turning device 18 in its rotational position until then undefined roundwood 12 is rotated as a function of the result of the measurement in the first scanner 16 about its longitudinal axis so that it points with its convex side of the curvature in the vertical direction upwards, ie in one Direction perpendicular to the plane of Fig. 1B , This is in the already mentioned DE 32 44 393 C1 described in detail, which may be referred to hereby.
  • the roundwood 12 is fed to a dressing spreader 20, which flattens the roundwood 12 on its underside as (line IV-IV) in Fig. 4 is shown (for details see also in the aforementioned DE 32 44 393 C1 ).
  • the round timber 12 now comes to a Anflach-Zerspaner 22, as sold by the applicant under the type designation FZ5.
  • the round timber 12 is laterally flattened, as this (line VV) in Fig. 5 is shown.
  • Fig. 1C shows, various long guides 24a - 24e and is measured in this way in a second scanner 26 with respect to the side panels still to be separated (line VI-VI).
  • line VI-VI This is in Fig. 6 shown.
  • a maximum of two side boards per side are provided.
  • Fig. 1C shows that the log 12 now in the range of two successive profiler 28 and 30 device, as sold by the applicant under the type designation FR15.
  • the round timber 12 are profiled in these profilers 28 and 30 (lines VII-VII and VIII-VIII), as shown in the FIGS. 7 and 8 is shown and there is a so-called.
  • the model now arrives at a turning device 36, in which the model still standing upright with the convex side is turned in the conveying direction to the left (line XX). This is in Fig. 10 drawn with an arrow.
  • the convex side 12a of the model is thus in the representation of FIG. 1D above.
  • Fig. 1E shows, according to the above-mentioned first conveying phase with the curved arc in the conveying direction to the right in absolutely straight, ie linear alignment by a third scanner 42 pushed (line XI-XI).
  • a third scanner 42 pushed (line XI-XI).
  • the model is measured in terms of how later a Brusägeschnitt along a curved curve with preferably constant curvature should be made, which allows an optimal yield of the per se irregularly grown round wood.
  • the third scanner together with an associated computer, thus determines a correspondingly optimized arc line, which in Fig. 1F designated by the reference numeral 80.
  • the arc line 80 preferably has a constant radius of curvature, ie is a circular line.
  • the model is now in a conical Anflach-Zerspaner 46 or Anflach-Fräsaggregat, as described by the applicant under the type designation FZ25 (see FIG. DE 30 45 107 C2 ) is flattened on both sides, so that a plane-parallel, laterally curved model is formed.
  • the Anflach chipper 46 is pivotable about its center 48 and in a direction 52 transversely to the conveying direction of the model displaced, as in Fig. 1E indicated by two double arrows 50, 54. In this way, the flattener 46 can be positioned to laterally flatten the model along the predetermined arcline.
  • the cross-sectional shape and the orientation of the model at this moment are in Fig. 12 shown.
  • the flat chipper 46 thus performs the already repeatedly explained Brufräsclar in which the Anflach-chipper 46 is rotatable about its center 48 and at a preferably constant opening of the Anflach-Zerspaners 46 additionally in the direction 52 laterally "dancing", i. can be moved transversely to the conveying direction of the model. In this way, the previously determined bow line of the model can be processed at exactly even feed of the model.
  • the roller pairs 44a and 44b are provided as infeed unit or as an extracting unit. These roller pairs 44a, 44b are preferably also the straight guide of the model, but they can also be pivoted according to the Anflach-Zerspaner 46.
  • the log 12 or model does not pass through the corresponding stations in a linearly guided path, but rather on a curved path corresponding to the predetermined processing path or arc line.
  • the processing tools are preset in this case as well as the feed elements or rollers according to this arc line stationary and do not change their position during the passage of the model.
  • the second phase is preferably used in the described embodiment in the area behind the Anflach-Zerspaner 46.
  • Fig. 1F This is illustrated by the rollers 68 and 70 and other rollers 72, 74, 76 and 78, which are preferably arranged in pairs.
  • Exemplary for the pair of rollers 68 is indicated by double arrows 69, that the rollers 68-78 are adjustable transversely to the conveying direction of the model.
  • the axes of the feed elements or rollers 68-78 are vertical to the plane of curvature.
  • the axes are individually adjusted prior to the start of the machining process along the preferably constant radius arcuate line 80 previously determined from the individual measurement of each individual model in the third scanner 42 for optimum timber yield. In this way, an associated machining tool is in each case in the region of the arc peak.
  • the measurement result of the fourth surveying process in the fourth scanner 56 is taken into account with regard to the position and position of the forest edge of the model or with regard to the thickness of the side boards to be sawn off.
  • the associated chippers are shown at 82 and 84.
  • the chippers 82, 84 are marketed by the applicant under the type designation FR15.
  • the model is reamed out (lines XIV-XIV and XV-XV), as shown in Figs FIGS. 14 and 15 is shown.
  • the chipper 82 and 84 are, similar to the Anflach-chipper 46, rotatable about a vertical axis and transversely displaceable to the conveying direction of the model. They are therefore adjustable in the manner described to a position along the arc line 80 and there alignable in the tangential direction of the arcuate line 80, wherein this position is spatially fixed during the machining process on the model.
  • the uniform arc line 80 with a radius of curvature dependent on the curvature of the roundwood has its peak at 86 in Figure 1F ,
  • FIG. 1F is an example of the chipper 82 with 83 denotes a Nutsäge and indicated by 85 a profiling. These units 83, 85 are moved perpendicular to the conveying direction to a position on the sheet 80, that is positioned in a stationary manner along the arc line 80.
  • chips are produced, as in the already mentioned DE 198 29 112 C1 as well as the DE 199 60 319 C1 is described in detail.
  • the profiled model then runs on to the ongoing and in FIG. 1G again shown chain conveyor 58 ', which is also provided downstream with a tapered channel 60' and a corresponding chain 66 '.
  • the model passes from there to a slicing double-shaft circular saw 88, as described by the applicant under the type designation DWK T 6 is sold.
  • the saw blades of the double-shaft circular saw 88 are in FIG. 1G designated 89.
  • a band saw unit can be used instead of the double-shaft circular saw 88.
  • Auszugsrollen 90 are used to carry out the side boards and other wood products from the double-shaft circular saw 88th
  • the guide rollers 86 and the Auszugsrollen 90 applies what has already been said earlier in terms of the second alternative of the conveying process. These elements are also preferably arranged stationary along the curved processing path. In the Auszugsrollen 90 is added that these are formed as a whole pivotable parallel to the plane of curvature due to the orientation of their axes of rotation, as with double arrows 92 in FIG. 1G indicated. The pivot axis is perpendicular to the plane of curvature.
  • the adjustment is therefore also an arcuate copying process produced by the positioning elements, the center of which is at the center of the saw shaft at 94.
  • the now completely sawed model is now released into a separating wedge 96, which in turn deposits the side boards in a region 98 and conveys the main product via a conveying element.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Claims (13)

  1. Procédé de découpe de bois cylindriques (12) courbés dans un plan, qui présente les étapes suivantes :
    a) planage latéral des bois cylindriques (12), au moins dans le plan de courbure,
    b) transport linéaire des bois cylindriques (12) dans un plan parallèle au plan de courbure,
    c) mesure des bois cylindriques (12) transportés linéairement et détermination de la ligne d'arc (80) de la courbure,
    d) au moyen de premiers outils de traitement (46), traitement des bois cylindriques (12) transportés linéairement, les outils de traitement (46) étant déplacés transversalement (54) par rapport à la direction du transport pendant la traversée des bois cylindriques (12) et étant alignés sur la direction de la ligne d'arc (80) par rotation (50) autour d'un axe perpendiculaire au plan de courbure, de manière à suivre la ligne d'arc (80),
    e) transport non linéaire des bois cylindriques (12) le long d'une piste de transport qui correspond à la ligne d'arc (80), des éléments d'avancement et/ou de guidage (68 - 78; 90) des bois cylindriques (12) étant ajustés et positionnés transversalement par rapport à la direction du transport avant la traversée des bois cylindriques (12) de manière à guider les bois cylindriques (12) le long de la ligne d'arc (80), et
    f) au moyen de deuxièmes outils de traitement (82, 84), traitement des bois cylindriques (12) transportés non linéairement, les deuxièmes outils de traitement (82, 84) étant ajustés et positionnés avant le passage de bois cylindriques (12) de manière à se déplacer le long de la ligne d'arc (80) pendant la traversée des bois cylindriques (12).
  2. Procédé selon la revendication 1, qui présente les étapes suivantes :
    a) amenée des bois cylindriques (12) au moyen d'un transporteur transversal (10),
    b) poursuite du transport des bois cylindriques (12) au moyen d'un transporteur à chaîne (14),
    c) première mesure des bois cylindriques (12) dans un premier scanneur (16),
    d) rotation (18) des bois cylindriques (12) autour de leur axe longitudinal en fonction de la première mesure, de telle sorte que le côté convexe (12a) des bois cylindriques (12) soit orienté vers le haut dans la direction verticale,
    e) planage du côté inférieur des bois cylindriques (12) au moyen d'une raboteuse de dressage (20),
    f) planage latéral des bois cylindriques (12) au moyen d'une raboteuse de planage (22),
    g) deuxième mesure des bois cylindriques (12) dans un deuxième scanneur (26),
    h) au moyen d'au moins une profileuse (28, 30), profilation des bois cylindriques (12) en fonction de la deuxième mesure,
    i) au moyen d'une première machine de sciage (32), sciage de planches latérales dans les bois cylindriques (12) profilés,
    j) rotation (36) des bois cylindriques (12) de 90° autour de leur axe longitudinal,
    k) troisième mesure des bois cylindriques (12) dans un troisième scanneur (42) et détermination de la ligne d'arc (80) dans le plan de courbure,
    l) poursuite du transport linéaire des bois cylindriques (12) et au moyen de premiers outils de traitement (46), traitement des bois cylindriques (12) transportés linéairement, les outils de traitement (46) étant ajustés (54) transversalement par rapport à la direction du transport pendant la traversée des bois cylindriques (12) et étant alignés sur la direction de la ligne d'arc (80) par rotation (50) autour d'un axe perpendiculaire au plan de courbure, de manière à suivre la ligne d'arc (80),
    m) quatrième mesure des bois cylindriques dans un quatrième scanneur (56),
    n) transport non linéaire des bois cylindriques (12) le long d'une piste de transport qui correspond à la ligne d'arc (80), des éléments d'avancement et/ou de guidage (68 - 78; 90) des bois cylindriques (12) étant ajustés et positionnés transversalement par rapport à la direction du transport avant la traversée des bois cylindriques (12), de manière à guider les bois cylindriques (12) le long de la ligne d'arc (80),
    o) au moyen de deuxièmes outils de traitement (82, 84), traitement des bois cylindriques (12) transportés de manière non linéaire, les deuxièmes outils de traitement (82, 84) étant ajustés et positionnés avant la traversée des bois cylindriques (12) de manière à se déplacer le long de la ligne d'arc (80) pendant la traversée des bois cylindriques (12), et
    p) découpe des bois cylindriques (12) dans une deuxième machine de sciage (88).
  3. Procédé selon les revendications 1 ou 2, caractérisée en ce que les éléments d'avancement et/ou de guidage (68 - 78) tournent autour d'un axe qui s'étend perpendiculairement au plan de courbure.
  4. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que les éléments d'avancement et/ou de guidage (90) tournent autour d'un axe qui s'étend parallèlement au plan de courbure.
  5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que les deuxièmes outils de traitement (82, 84) et/ou les éléments d'avancement et/ou de guidage (68 - 78) sont disposés à une entrée et/ou à une sortie d'une machine de sciage (88) qui divise les bois cylindriques (12) en planches ou en poutres.
  6. Procédé selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que les outils de traitement (46, 82, 84) et/ou les éléments d'avancement et/ou de guidage (68 - 78) sont disposés par paires sur les côtés opposés du bois cylindrique (12).
  7. Procédé selon la revendication 6, caractérisé en ce que les paires d'outils de traitement (46, 82, 84) et/ou les éléments d'avancement et/ou de guidage (68 - 78) sont disposés à distance mutuelle constante.
  8. Procédé selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que les bois cylindriques (12) sont transportés avec leur extrémité épaisse vers l'avant.
  9. Procédé selon l'une ou plusieurs des revendications 1 à 8, caractérisé en ce qu'au moins l'un des outils de traitement (46, 82, 84) fraise.
  10. Procédé selon l'une ou plusieurs des revendications 1 à 9, caractérisé en ce qu'au moins l'un des outils de traitement scie.
  11. Procédé selon l'une ou plusieurs des revendications 1 à 10, caractérisé en ce qu'avant l'étape du transport non linéaire, les bois cylindriques (12) sont roulés avec leur côté concave (12a) sur un guide linéaire (62) qui s'étend dans la direction du transport.
  12. Dispositif de découpe en produits de bois de bois cylindriques (12) courbés dans un plan, lequel dispositif présente :
    a) des moyens de planage latéral des bois cylindriques (12), au moins dans le plan de courbure,
    b) des moyens de transport linéaire des bois cylindriques (12) dans un plan parallèle au plan de courbure,
    c) des moyens de mesure des bois cylindriques (12) transportés linéairement et de détermination d'une ligne d'arc (80) de la courbure,
    d) des moyens de traitement, au moyen de premiers outils de traitement (46), des bois cylindriques (12) transportés linéairement, les outils de traitement (46) étant ajustés (54) transversalement par rapport à la direction du transport pendant la traversée des bois cylindriques (12) et étant orientés en direction de la ligne d'arc (80) par rotation (50) autour d'un axe perpendiculaire au plan de courbure, de telle sorte qu'ils suivent la ligne d'arc (80),
    e) des moyens de transport non linéaire des bois cylindriques (12) le long d'une piste de transport qui correspond à la deuxième ligne d'arc (80), des éléments d'avancement et/ou de guidage (68 - 78; 90) des bois cylindriques (12) étant ajustés et positionnés transversalement par rapport à la direction du transport avant la traversée des bois cylindriques (12), de manière à transporter les bois cylindriques (12) le long de la ligne d'arc (80), et
    f) des moyens de traitement, au moyen de deuxièmes outils de traitement (82, 84), des bois cylindriques (12) transportés de manière non linéaire, les deuxièmes outils de traitement (82, 84) étant ajustés et positionnés avant la traversée des bois cylindriques (12) de manière à se déplacer le long de la ligne d'arc (80) pendant la traversée des bois cylindriques (12).
  13. Dispositif selon la revendication 12, qui présente :
    a) un transporteur transversal (10) qui amène les bois cylindriques (12),
    b) un transporteur à chaîne (14) qui poursuit le transport des bois cylindriques (12),
    c) un premier scanneur (16) qui effectue la première mesure des bois cylindriques (12),
    d) un premier dispositif de rotation (18) qui fait tourner les bois cylindriques (12) autour de leur axe longitudinal en fonction de la première mesure, de telle sorte que le côté convexe (12a) des bois cylindriques (12) soit tourné vers le haut dans la direction verticale,
    e) une raboteuse de dressage (20) qui dresse le côté inférieur des bois cylindriques (12),
    f) une raboteuse de planage (22) qui plane latéralement les bois cylindriques (12),
    g) un deuxième scanneur (26) qui effectue une deuxième mesure des bois cylindriques (12),
    h) au moins une profileuse (28, 30) qui profile les bois cylindriques (12) en fonction de la deuxième mesure,
    i) une première machine de sciage (32) qui scie les planches latérales dans les bois cylindriques (12) profilés,
    j) un deuxième dispositif de rotation (36) qui fait tourner les bois cylindriques (12) de 90° autour de leur axe longitudinal,
    k) un troisième scanneur (42) qui effectue une troisième mesure des bois cylindriques (12) et qui détermine une ligne d'arc (80) dans le plan de courbure,
    l) un transporteur linéaire (40) qui poursuit le transport linéaire des bois cylindriques (12) et qui est doté d'outils de traitement (46) qui traitent les bois cylindriques (12) transportés linéairement, les outils de traitement (46) étant ajustés (54) transversalement par rapport à la direction du transport pendant la traversée des bois cylindriques (12) et étant orientés en direction de la ligne d'arc (80) par rotation (50) autour d'un axe perpendiculaire au plan de courbure, de manière à suivre la ligne d'arc (80),
    m) un quatrième scanneur (56) qui effectue une quatrième mesure des bois cylindriques (12),
    n) un transporteur non linéaire qui transporte de manière non linéaire les bois cylindriques (12) le long d'une piste de transport qui correspond à la ligne d'arc (80), des éléments d'avancement et/ou de guidage (68 - 78; 90) des bois cylindriques (12) étant ajustés et positionnés transversalement par rapport à la direction du transport avant la traversée des bois cylindriques (12) de manière à guider les bois cylindriques (12) le long de la ligne d'arc (80),
    o) des deuxièmes outils de traitement (82, 84) qui traitent les bois cylindriques (12) transportés de manière non linéaire, les deuxièmes outils de traitement (82, 84) étant ajustés et positionnés avant la traversée des bois cylindriques (12) de manière à se déplacer le long de la ligne d'arc (80) en fonction de la quatrième mesure pendant la traversée des bois cylindriques (12), et
    p) une deuxième machine de sciage (88) qui découpe les bois cylindriques (12).
EP02718072A 2001-02-01 2002-01-31 Procede et dispositif pour decouper des bois ronds courbes dans un plan afin d'obtenir des produits ligneux Expired - Lifetime EP1365899B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10105178 2001-02-01
DE10105178 2001-02-01
DE10138946 2001-08-02
DE10138946 2001-08-02
PCT/EP2002/001014 WO2002060659A2 (fr) 2001-02-01 2002-01-31 Procede et dispositif pour decouper des bois ronds courbes dans un plan afin d'obtenir des produits ligneux

Publications (2)

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EP1365899A2 EP1365899A2 (fr) 2003-12-03
EP1365899B1 true EP1365899B1 (fr) 2009-08-12

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EP (1) EP1365899B1 (fr)
AT (1) ATE439220T1 (fr)
DE (2) DE50213762D1 (fr)
DK (1) DK1365899T3 (fr)
ES (1) ES2329344T3 (fr)
NO (1) NO323066B1 (fr)
WO (1) WO2002060659A2 (fr)

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EP1592538A1 (fr) * 2003-01-30 2005-11-09 Esterer WD GmbH & Co. KG Procede et ligne d'usinage permettant de decouper des troncs d'arbres
DE102004062372B3 (de) * 2004-12-15 2006-07-06 Esterer Wd Gmbh & Co. Kg Spanerkopf und Verfahren zum Zerspanen von Randbereichen von Baumstämmen
DE102004062373B4 (de) * 2004-12-15 2007-11-29 Esterer Wd Gmbh & Co. Kg Verfahren und Vorrichtung zum Fördern von Baumstämmen
DE102005024581B4 (de) * 2005-05-24 2007-03-01 Esterer Wd Gmbh & Co. Kg Vorrichtung zum Ausrichten von Holzerzeugnissen
DE102021126725A1 (de) 2021-10-14 2023-04-20 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG Verfahren und vorrichtung zum herstellen von schnittholz

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DE3244393C1 (de) * 1982-12-01 1984-03-01 Wurster u. Dietz GmbH u. Co Maschinenfabrik, 7400 Tübingen Verfahren zum Herstellen von allseitig bearbeiteten Holzerzeugnissen sowie Vorrichtung zur Durchfuehrung des Verfahrens
US4879659A (en) * 1987-11-24 1989-11-07 Bowlin William P Log processing systems
CA2022857C (fr) * 1990-08-08 1996-04-23 Lars Gunnar Lundstrom Broyage secondaire des grumes dans les scieries
SE470378B (sv) * 1991-06-17 1994-02-07 Ari Ab Sätt och anordning för sönderdelning av stock till bräder och plank
CA2109254C (fr) * 1993-10-26 1997-04-22 Maurice J. Brisson Sciage et decoupage d'equarris deux-faces selon leur courbe
US5884682A (en) * 1996-03-21 1999-03-23 Cae Newnes Ltd. Position-based integrated motion controlled curve sawing

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DE10203871A1 (de) 2002-08-14
ATE439220T1 (de) 2009-08-15
DE50213762D1 (de) 2009-09-24
WO2002060659A3 (fr) 2003-10-02
ES2329344T3 (es) 2009-11-25
NO20033050D0 (no) 2003-07-03
NO20033050L (no) 2003-07-03
WO2002060659A2 (fr) 2002-08-08
NO323066B1 (no) 2006-12-27
DK1365899T3 (da) 2009-11-23
EP1365899A2 (fr) 2003-12-03

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