EP0097794B1 - Procédé et dispositif pour la fabrication en continu de feuilles de placage - Google Patents

Procédé et dispositif pour la fabrication en continu de feuilles de placage Download PDF

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Publication number
EP0097794B1
EP0097794B1 EP83104439A EP83104439A EP0097794B1 EP 0097794 B1 EP0097794 B1 EP 0097794B1 EP 83104439 A EP83104439 A EP 83104439A EP 83104439 A EP83104439 A EP 83104439A EP 0097794 B1 EP0097794 B1 EP 0097794B1
Authority
EP
European Patent Office
Prior art keywords
veneer
length
facility
pieces
width
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
Application number
EP83104439A
Other languages
German (de)
English (en)
Other versions
EP0097794A1 (fr
Inventor
Gerhard Dipl.-Ing. Schulte
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.)
Blomberger Holzindustrie B Hausmann & Co KG GmbH
Original Assignee
Blomberger Holzindustrie B Hausmann & Co KG GmbH
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 Blomberger Holzindustrie B Hausmann & Co KG GmbH filed Critical Blomberger Holzindustrie B Hausmann & Co KG GmbH
Priority to AT83104439T priority Critical patent/ATE36665T1/de
Publication of EP0097794A1 publication Critical patent/EP0097794A1/fr
Application granted granted Critical
Publication of EP0097794B1 publication Critical patent/EP0097794B1/fr
Expired 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
    • B27L5/08—Severing sheets or segments from veneer strips; Shearing devices therefor; Making veneer blanks, e.g. trimming to size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1066—Cutting to shape joining edge surfaces only
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • Y10T156/1079—Joining of cut laminae end-to-end

Definitions

  • the invention relates to a method of the type specified in the preamble of claim 1 and a device according to the preamble of claim 5 for performing the method.
  • the veneer webs obtained are pressed in several layers to form a veneer block, which is then cut into thin layers parallel to the fiber direction and perpendicular to the block surface to form lamella panels.
  • a considerable and usable area portion of the raw veneer is wasted, because in anticipation of the raw veneer being cut, strips containing defects in the peeling direction, i. H. cut across the grain, continuously. Since the width of the continuous strip containing the defects is based on the width of the largest occurring defects, so that smaller defects are too wide, and parts that are useful in the cutting direction of this strip are cut out from the defects themselves, the usable area of the raw veneer becomes only used to an unsatisfactory extent.
  • the invention has for its object to provide a method of the type mentioned, with which the yield of recyclable veneer is increased while fully automated.
  • the yield of veneer is considerably higher than in the known methods.
  • a longitudinal strip section which can be further used is formed from each strip with defects, provided that there is a practically still usable minimum length in the direction of the fibers.
  • the yield of the recycled veneer can be determined in a wide range by the choice of the width of the strips and the determination of the practically still usable minimum length. As a result of the successive and interdependent steps, the process can be largely automated with the least possible use of labor.
  • a device according to the preamble of claim 5, in which the characterizing features of claim 5 are present, is particularly suitable for carrying out the method according to the invention.
  • This configuration of the device results in a mandatory and precisely coordinated material flow and a high processing speed.
  • the individual device components are arranged one behind the other or side by side in the manner of a production line, so that the available space is optimally used and full automation is possible as far as possible.
  • a further, expedient embodiment finally emerges from claim 7.
  • groups of strips and longitudinal strip sections that can be determined according to different selection criteria are formed, which are then processed separately from one another, so that end products with qualitative differences but in the respective quality level can be obtained with constant quality.
  • a peeled veneer web 5 obtained from a round wood block by round peeling can be seen, which is divided into three sections in the drawing, although the peeled veneer web 5 is continuously produced. It has imaginary side edges 1, 2. With dividing lines 3 running approximately in the direction of the fibers, 5 strips of the same width are cut out of the peeled veneer web.
  • the peeling process starting in FIG. 1a, initially provides individual, misshapen veneer pieces which, as the peeling revolution increases, gradually pass into a veneer belt that becomes more and more complete.
  • the veneer web 5 approaches the core area of the round timber section, where serious veneer defects 6, e.g. B. wide cracks and large knotholes occur to an increasing extent.
  • the veneer web 5 and also its individual pieces are now formed into individual strips of equal width with a width corresponding to the spacing between the dividing lines 3 by cuts made approximately parallel to the fiber direction.
  • a certain length unit represented for example by the distance between five lines 4 is now selected as the length which still results in a practically usable longitudinal strip section Sd.
  • Strip sections Sd are then cut from all strips Sb, the common feature of which is rectangular areas of the same width and at least the length Sd.
  • the strips Sc can be comminuted and excreted in the cross pattern.
  • the crushing in the cross-grid can alternatively also be omitted, that is to say the excretion takes place in the respective size.
  • the raw veneer 5 which is preferably dried and preferably obtained in a round peeling process, is fed to a cutting device 26, which breaks the raw veneer 5 into strips Sa, Sb and Sc approximately parallel to the fiber direction.
  • a cutting device 26 which breaks the raw veneer 5 into strips Sa, Sb and Sc approximately parallel to the fiber direction.
  • This can be done at a uniformly low veneer feed rate by a stationary device that works in a clocked manner or at a higher feed rate by a sub-device that is also moved during the sub-process.
  • a step-by-step, precisely controlled veneer feed is also possible with a stationary part device.
  • the separation of the strip elements is expediently connected with the sub-process by establishing equal distances between them, so that the strips lie on the subsequent transport device 7.
  • the detection device 8 makes its determinations in a manner known per se, stores them and triggers them in the subsequent separation and comminution system 9, for example from saws, circular knives or the like arranged in a narrow grid, but also from high-energy beams may consist of appropriate control signals. It is conceivable that all non-usable parts are broken down into pieces as small as the grid allows.
  • the devices 14 each contain a supply of strips of new length, which were obtained from the categories Sa and Sd, respectively, and which they pass on here - in random order - to the transport device underneath. This feeds the strips of new length - if necessary after appropriate edge preparation, which may also have already been carried out in the longitudinal composing devices 13 - to the cross-assembling system 15, where the elements are assembled in a known manner to form the veneer web 16 and then either wound up endlessly, processed endlessly or but - as shown - can be divided into veneer sheets with a width dependent on the end product using the dividing device 17 and collected as a veneer stack 18.
  • the individual device components are automatically controlled by a control device 19 which is connected to the individual components via connecting lines.
  • the device can also be designed without further ado that the area of the raw veneer recognizable from FIG. 1b, in which almost only fully usable surface areas are present, is divided into individual broad parts, which may already correspond to the final width of the end product.
  • Fig. 2 shows, for example, the part of a veneer web cut to the finished width with a certain length and width, which is made in some areas from strips of new length produced separately for each category Sa and Sd, this new length being substantially greater than the original raw veneer length Sa.
  • FIG 3 shows a further method variant, in which case the part of a veneer web cut to the finished width corresponds in the fiber direction to the original raw veneer length Sa.
  • the veneer sheet is supplemented by parts of category Sd assembled in length Sa.
  • FIG. 4 shows a part of a veneer web cut to the finished width, in which a large part width (here half width) was combined with strips Sa and strips Sd composed of parts longitudinally.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
  • Control Of Electric Motors In General (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Chain Conveyers (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Steroid Compounds (AREA)

Claims (7)

1. Procédé de fabrication de feuilles continues de placage (16) de n'importe quelle longueur et n'importe quelle largeur à partir d'un placage brut (5) qui, après le déroulage, est divisé en bandes de placage (Sa, Sb, Sc) ayant toujours la même largeur et des longueurs différentes et est débarrassé de défauts (6) par des coupes transversalement au sens des fibres, les bandes sans défaut étant réunies dans le sens des fibres en une bande sans fin (19) à partir de laquelle sont formées des parties de bande d'une longueur éventuellement prédéterminée qui sont assemblées en continu en largeur, transversalement au sens des fibres et sont ensuite divisées pour former les feuilles continues de placage d'une longueur et d'une largeur prédéterminées, caractérisé en ce qu'au cours d'une première étape opératoire, le placage brut (5) est divisé en bandes (Sa, Sb, Sc) de même lageur, en ce que des espaces réguliers sont créés entre les bandes (Sa, Sb, Sc), en ce que les défauts (6) de chacune des bandes isolées sont recherchés en fonction du type, de la taille et de la position et en ce qu'au moins une partie longitudinale non utilisable est séparée de chaque bande défectueuse (Sb) en formant ainsi au moins une partie longitudinale de bande (Sd) sans défaut ayant une longueur dépassant une longueur minimale utilisable en pratique.
2. Procédé selon la revendication 1, caractérisé en ce que le placage brut (5) est séché avant d'être divisé en bandes (Sa, Sb, Sc).
3. Procédé selon la revendication 1, caractérisé en ce que des groupes séparés en fonction de la qualité et/ou de la coloration et/ou de la structure des fibres sont formés avant l'assemblage des bandes sans défaut (Sa) et des parties longitudinales de bandes (Sd) en une bande sans fin (19).
4. Procédé selon la revendication 1, caractérisé en ce que la largeur des bandes et la longueur minimale utilisable en pratique sont déterminées préalablement en fonction du type de bois.
5. Dispositif de fabrication de bandes continues de placage (16) à partir de différentes bandes de placage assemblées de longueur et de largeur limitées, comprenant un dispositif de division du placage brut (26) destiné à former des bandes (Sa, Sb, Sc) de largeurs exactement égales, une installation de débitage (9) destinée à séparer des parties longitudinales non utilisables de parties longitudinales utilisables (Sd) dans les bandes (Sb) et au moins un dispositif d'assemblage longitudinal (13) dans lequel les bandes (Sa) et les parties longitudinales de bandes (Sd) sont assemblées en feuilles de placage (19) continues dans le sens des fibres et sont ensuite divisées en parties de feuilles adaptées à l'utilisation finale, caractérisé en ce qu'il est placé, dans le sens du travail du placage brut (5), après le dispositif de division (26) du placage brut, un dispositif de séparation (7) dans lequel des espaces réguliers sont créés entre les bandes (Sa, Sb, Sc) dans le sens de travail, en ce que le dispositif de séparation (7) est suivi par un dispositif d'identification (8) destiné à déterminer la catégorie de chaque bande (Sa, Sb, Sc) et à commander l'installation de débitage (9) suivante qui est composée d'une pluralité de différents dispositifs de débitage très sérrés, le dispositif d'identification (8) étant également destiné à la commande d'au moins un dispositif d'évacuation (10) pour les bandes (Sc) et les parties longitudinales de bande non utilisables provenant de l'installation de débitage (9), et en ce que le dispositif d'évacuation (10) est suivi par le dispositif d'assemblage longitudinal et de division longitudinale de la feuille continue de placage (13) et en ce qu'il est prévu à la suite une installation d'assemblage transversal (15) comportant un dispositif de division en largeur (17) et dans laquelle les parties de bande sont assemblées en continu transversalement au sens des fibres en une feuille de placage (16) et sont découpées en épaisseurs de placage (18) ayant une largeur quelconque adaptée à l'utilisation finale.
6. Dispositif selon la revendication 5, caractérisé en ce que l'installation de débitage (9) contient une installation de fragmentation dans laquelle les bandes (Sc) et les parties longitudinales non utilisables sont fragmentées sous forme de déchets et sont évacuées.
7. Dispositif selon les revendications 5 et 6, caractérisé en ce que dans le dispositif d'identification (8) il est prévu un autre dispositif d'identification qui est destiné à déterminer des différences qualitatives entre les bandes (Sa) et les parties longitudinales de bande (Sd) et déclenche des signaux de commande appropriés qui sont transmis à d'autres dispositifs d'évacuation (11, 12) et à des dispositifs collecteurs dans lesquels les bandes et les parties longitudinales de bande de même qualité sont réunies en étant séparées par groupe.
EP83104439A 1982-05-06 1983-05-05 Procédé et dispositif pour la fabrication en continu de feuilles de placage Expired EP0097794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104439T ATE36665T1 (de) 1982-05-06 1983-05-05 Verfahren und vorrichtung zum herstellen einer furnierbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3217063 1982-05-06
DE3217063A DE3217063C2 (de) 1982-05-06 1982-05-06 Verfahren zum Herstellen einer Furnierbahn

Publications (2)

Publication Number Publication Date
EP0097794A1 EP0097794A1 (fr) 1984-01-11
EP0097794B1 true EP0097794B1 (fr) 1988-08-24

Family

ID=6162934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104439A Expired EP0097794B1 (fr) 1982-05-06 1983-05-05 Procédé et dispositif pour la fabrication en continu de feuilles de placage

Country Status (7)

Country Link
US (1) US4565597A (fr)
EP (1) EP0097794B1 (fr)
JP (1) JPS58209501A (fr)
AT (1) ATE36665T1 (fr)
DE (2) DE3217063C2 (fr)
DK (1) DK155359C (fr)
FI (1) FI831110L (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117603A (en) * 1990-11-26 1992-06-02 Weintraub Fred I Floorboards having patterned joint spacing and method
US5662760A (en) * 1991-11-11 1997-09-02 Tsuda; Sotaro Method of manufacturing laminated veneer lumber and decorative laminated sheet utilizing the same
DE19616925A1 (de) * 1996-04-27 1997-11-06 Feddema Furniertechnik Gmbh Verfahren zur Herstellung eines Flächenfurniers
US5927359A (en) * 1997-10-09 1999-07-27 Kersten; Donald System and method for recycling scrap lumber
US6162312A (en) * 1999-01-19 2000-12-19 Abney; Dennis R. Method of making a resin impregnated composite wood product from waste, scrap, and used wood
DE19916041A1 (de) * 1999-04-09 2000-10-12 Dieffenbacher Gmbh Maschf Verfahren und Anlage zur Herstellung von überbreiten Furniertafeln
FR2809342B1 (fr) * 2000-05-25 2002-09-06 Thierry Simon Procede de fabrication de feuilles de bois naturel
US6779576B2 (en) * 2001-06-26 2004-08-24 Eric Cable Wood-gluing and clamping system
AT5430U3 (de) * 2002-04-15 2002-11-25 Rosenauer Holzverarbeitungsges Möbelplatte
US20030209318A1 (en) * 2002-05-09 2003-11-13 Henthorn John R. Method for manufacturing fabricated OSB studs
FI119362B (fi) * 2006-09-21 2008-10-31 Raute Oyj Menetelmä ja laitteisto vajaaviilun talteenottamiseksi viilun tuotannossa
DE102009022335A1 (de) * 2009-05-13 2010-11-18 GreCon Dimter Holzoptimierung Süd GmbH & Co. KG Verfahren zur Herstellung von Holzplatten

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA460808A (fr) * 1949-11-01 W. Mcclary Harold Traitement du bois de placage
GB421979A (en) * 1933-06-29 1934-12-31 Klinger Johann Process for the manufacture of laminated joinery members
GB795284A (en) * 1955-06-07 1958-05-21 British Thomson Houston Co Ltd Improvements relating to the control of devices for dividing material
DE1224023B (de) * 1959-01-23 1966-09-01 Roller Fa A Vorrichtung zum Beschneiden von kontinuierlich gefoerdertem, bandfoermigem Arbeitsgut, insbesondere Furnierstreifen
NL270134A (fr) * 1960-10-13
DE1588301C3 (de) * 1967-09-29 1973-11-08 Heidenreich & Harbeck Gmbh, 2000 Hamburg Vorrichtung zum Trennen fehlerbe hafteter Materialbahnen in nutzbare Ab schnitte vorgegebener Lange
US3969558A (en) * 1972-07-18 1976-07-13 Dantani Plywood Co., Ltd. Veneer sheet of a plurality of thin flat sections of wood
CA997661A (en) * 1975-03-13 1976-09-28 Her Majesty In Right Of Canada As Represented By The Minister Of The Dep Artment Of The Environment Method of joining bodies of green lumber by finger joints
DE2532428A1 (de) * 1975-07-19 1977-02-03 Armin Wiblishauser Furnierbahn und verfahren zu deren herstellung
DE2552710C2 (de) * 1975-11-25 1985-08-14 Karl 3454 Bevern Bertram Elektronische Vorrichtung für Furnierschneidemaschinen
US4401496A (en) * 1981-11-12 1983-08-30 Armstrong World Industries, Inc. Veneer salvage technique

Also Published As

Publication number Publication date
DK150183A (da) 1983-11-07
EP0097794A1 (fr) 1984-01-11
FI831110A0 (fi) 1983-03-30
JPS58209501A (ja) 1983-12-06
ATE36665T1 (de) 1988-09-15
US4565597A (en) 1986-01-21
FI831110L (fi) 1983-11-07
DE3377775D1 (en) 1988-09-29
DE3217063A1 (de) 1983-11-17
DK155359B (da) 1989-04-03
DE3217063C2 (de) 1984-04-19
DK150183D0 (da) 1983-04-05
DK155359C (da) 1989-10-16

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