EP0607480B1 - Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées - Google Patents

Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées Download PDF

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Publication number
EP0607480B1
EP0607480B1 EP19930100716 EP93100716A EP0607480B1 EP 0607480 B1 EP0607480 B1 EP 0607480B1 EP 19930100716 EP19930100716 EP 19930100716 EP 93100716 A EP93100716 A EP 93100716A EP 0607480 B1 EP0607480 B1 EP 0607480B1
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EP
European Patent Office
Prior art keywords
laminated
glue
wood
press
boards
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
EP19930100716
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German (de)
English (en)
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EP0607480A1 (fr
Inventor
Erwin Dimter
Reinhard Dimter
Renate Schmid
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Individual
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Priority to DE59307743T priority Critical patent/DE59307743D1/de
Priority to EP19930100716 priority patent/EP0607480B1/fr
Publication of EP0607480A1 publication Critical patent/EP0607480A1/fr
Application granted granted Critical
Publication of EP0607480B1 publication Critical patent/EP0607480B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/006—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected both laterally and at their ends

Definitions

  • the invention relates to a device and a method for producing plywood bodies from individual plywood elements glued together.
  • Wide glulam components also need wide individual boards. Otherwise you have to glue the individual boards endlessly in their width and then cut out this wide area with a cross-cut saw in the desired width and glue the obtained sections lengthways. In this way, you can produce any width for glulam beams. However, this production is expensive. Wide boards of approx. 250 to 300 mm are hardly anymore cut by sawmills and if so, these boards are much more expensive. According to DIN 1.052, wide boards would have to be scored on both sides before gluing, so that the residual stresses remain ineffective. This process is complex. The wide board of the Stammitte cannot be used because of the high internal stress. The forest industry cannot supply these quantities and widths because intensive use means that the forest is cut earlier.
  • the object of the invention is to produce normal glued laminated timber of different widths with a glulam press without emptying the press, economically producing excess widths from several narrow boards and large upper and lower chords and gluing these statically favorably at large distances with smaller cross sections, and furthermore the pressing pressure offset from 90 ° to effect a surface gluing for double T, To enable box girder and other profiles. Gluing should be done quickly. A combination with other materials should be possible in order to apply or introduce layers for fire protection, sound and heat insulation, liquid insulation and others.
  • a package of different widths of the multi-lane press can be processed to the length of the end product.
  • Boards of different widths can be stacked in height and easily accessed as needed.
  • the gluing device for the production of the glulam beams is closed, the width can be changed against spring force and can be heated.
  • the individual components or the glue can be heated for faster setting.
  • the gluing device is suitable for holding several boards.
  • the conventional method of roller transport is not suitable for achieving a continuous speed of the glue application, because a resilient sealing of the board guide by the gluing device results in an uneven speed, and thus an associated uneven amount of glue application. Therefore, the boards are inevitably transported on a conveyor belt.
  • the gluing device is set by a resilient stop of a pressure cylinder to the width of the boards to be glued, as is the height of the slit-shaped glue discharge openings by a slide.
  • the assembled boards to be glued are turned in every second layer by 180 ° to overlap the different ones Get board widths.
  • the boards of the same or different width specified with glue are placed in the plywood press, positioned and pressed.
  • the press has a further pressure unit, which takes over the backflow protection and a sliding pressure unit for maintaining the glue pressure when the counter pressure is removed.
  • the two pressure units acting on one level have a much higher pressure than would be required for gluing glulam beams. This favors the manufacture of the box girder and other profiles.
  • the first rigid pressure unit can therefore be used for gluing the lower belt and the second movable for the upper belt. In this way you can economically produce I-profiles and other suitable surface gluing.
  • Fig. 1 The construction of a plywood press designated 1 has a push-in cylinder 3 provided with a heatable pressure piece 2 for the boards 27 to be glued, which counteracts a counter-pressure cylinder 4 which can be fixed in individual positions in bores 5 with the locking bolt 6 of a working cylinder 7.
  • a second printing unit (10) is in the direction of arrows 12 and 13 on rollers 14 and on the pulley 15 and the drive wheel 16 moving belt horizontally.
  • the last boards 27 of a glulam beam width are not specified with glue.
  • the piston stroke of the cylinder 4 is advantageously as long as the max. glulam width to be produced. If an empty joint indicates the end of the width, then, or a few inserts later, the pressure piece 11 goes into active position through the hydraulic cylinder of the printing unit 10. The pressure piece 20 is withdrawn by the cylinder 4 and the glued glulam beam is raised and transported away for surface treatment in a known manner. The pressure is maintained between the pressure units 9 and 10 and the connection 8 between the pressure pieces 11 absorbs the forces acting in the direction of the arrows 12 and 13.
  • the boards 27 can be inserted further, the adjustable counterforce is taken over by the pressure unit 10 through friction until cylinder 4 with the pressure piece is in the active position. Friction is only possible if the glue has set in the glulam beam. Due to the possible deformation of the individual boards, the glue joint would be destroyed. Therefore, the pressure piece 11 of the printing unit 10 must initially take over the counter pressure. Since the glulam beams are manufactured in different widths, the mobile printing unit is brought into the required position by the driver in the direction of arrow 12 or 13 by the drive. On the construction 1, the perforated rail with the holes 5 is attached, where the compressed air cylinders 7 lock the bolts 6 in the front flange of the impression cylinder 4.
  • each When pressed in two channels, as shown in FIG. 10, by a film 18 in boards 19 which are separated from one another to prevent gluing, each is pressed by an insertion cylinder 3 and a common counter-pressure piece 20 of the counter-pressure cylinder 4.
  • FIG. 2 A stack of boards of the same width is pushed on a structure 21 in the direction of arrow 22 and separated over an edge 23, a rotatable stop 24 preventing tipping.
  • the isolated boards 25, 26, 27 are conveyed to a stop 28 of a press shoe 29 by a belt into the position of the transverse press web 30, on which the boards are connected to form an endless web with glue-specified finger joints at their ends.
  • FIG. 3 A wider and a narrower board 31, 32 are taken from stacks 33, 34 (FIG. 3a) sorted according to their width, put together, the second layer being turned through 180 ° (FIG. 3a) in order to align the joints to avoid the plywood beam.
  • the assembly of a plywood beam from boards of three different widths is shown in Fig.3c.
  • Fig. 4 Shown is a plate 35 made of glue-capable material, on which the plywood supports 36 and 37 according to the invention are glued on both sides of a space 38 that can be filled with insulating material.
  • FIG. 5 A hollow box profile is shown, which is glued together from two plywood beams 39, 40 produced according to the invention.
  • Fig. 6 Shown is the profile of a plywood carrier made of boards of different widths, which can be separated at the unglued joints 41, 42 and 43, 44.
  • the gluing device is shown, with which the boards can be glued in accordance with FIG. 1 before being introduced into the press.
  • the boards 45 are pulled through the stop 46 on a conveyor belt under the gluing device 47.
  • the gluing device 47 has a housing made of walls 48, 49, 50 with a fixed side wall 51 and a movable cover 52.
  • the wall 50 is provided on its lower edge with incisions 53 for the application of the glue in parallel strands, which can be covered in an adjustable manner by a slide 56 adjustable by rollers 55 for metering the glue 54.
  • the side wall 57 of the housing of the gluing device 47 can be displaced with respect to the side wall 51 after the respective board to be treated by the working cylinder 58 against spring action and thus serves as a stop on the inserted board.
  • Tubes 59 and 60 for each glue component are arranged on the top of the wall 48 and have glue outlet openings 61 and 62.
  • the glue supply pipes 63 and 64 can be moved together with the side wall 47 and lie within the pipes 59 and 60, whereby they seal the glue outlet openings 61 and 62 lying outside the wall 57, respectively.

Claims (9)

  1. Dispositif de fabrication de corps en bois stratifié en direction de la longueur, constitué d'éléments en bois stratifié individuels, collées ensembles,
    avec un dispositif d'encollage (47) conçu pour encoller l'une des grandes surfaces des éléments en bois stratifié (19, 25, 26, 27, 45),
    avec une presse à bois stratifié, équipée d'un dispositif de pressage hydraulique (3), pouvant être commandé dans une direction, d'insertion horizantale, et avec un dispositif de pressage hydraulique (9, 10) agissant perpendiculairement à celui-ci, pouvant être commandé, réglable concernant l'intensité du pressage, et avec un dispositif d'insertion des éléments en bois stratifié dans la presse à bois stratifié,
       caractérisé en ce que, dans le dispositif d'encollage (47), sont guidés conjointement deux composants de colle, dont l'application d'encollage s'effectue sous la forme de cordons de colle (54) parallèles, et la largeur de l'application de colle étant adaptée à la largeur effective du poids stratifié et ne dépassant pas celle-ci,
       et en ce que la presse à bois stratifié est pourvue d'une deuxième dispositif de pressage (10), réglable en hauteur, pouvant être commandé, agissant perpendiculairement à la direction d'insertion et déplaçable dans la direction d'insertion et présente un dispositif à contre-pression (4) hydraulique, couplé hydrauliquement au dispositif de pressage horizontal (3), de manière à produire une déformation dans la direction d'insertion, avec conservation de la contre-pression.
  2. Procédé de fabrication de corps en bois stratifié en direction de la longueur, constitué d'éléments en bois stratifié individuels, collées ensembles,
    avec un dispositif d'encollage (47) conçu pour encoller l'une des grandes surfaces des éléments en bois stratifié (19, 25, 26, 27, 45),
    avec une presse à bois stratifié, équipée d'un dispositif de pressage hydraulique (3), pouvant être commandé dans une direction d'insertion horizontale, et avec un dispositif de pressage hydraulique (9, 10) agissant perpendiculairement à celui-ci, pouvant être commandé, réglable concernant l'intensité du pressage, et avec un dispositif d'insertion des éléments en bois stratifié dans la presse à bois stratifié,
       caractérisé en ce que, dans le dispositif d'encollage (47), sont guidés conjointement deux composants de colle, dont l'application d'encollage s'effectue sous la forme de cordons de culte (54) parallèles, et la largeur de l'application de colle étant adaptée à la largeur effective du poids stratifié et ne dépassant pas celle-ci,
       et en ce que la presse à bois stratifié est pourvue d'une deuxième dispositif de pressage (10), réglable en hauteur, pouvant être commandé, agissant perpendiculairement à la direction d'insertion et déplacable dans la direction d'insertion et présente un dispositif à contre-pression (4) hydraulique, couplé hydrauliquement au dispositif de pressage horizontal (3), de manière à produire une déformation dans la direction d'insertion, avec conservation de la contre-pression.
  3. Dispositif selon la revendication 1, caractérise en ce que les pièces de pressage (2, 11) du dispositif de pressage (3, 9, 10) sont réalisées d'une façon susceptibles d'être chauffées.
  4. Dispositif selon la revendication 1, caractérisé en ce que les composants de colle (54) peuvent être chauffés.
  5. Dispositif selon la revendication 1, caractérise en ce que les éléments de bois stratifié sont constitués de plusieurs planches individuelles (33, 34, 35) dont les joints de colle s'étendent de façon décalée par rapport à ceux d'un élément voisin.
  6. Procédé selon la revendication 2, caractérisé en ce que les pièces de pressage (2, 11) du dispositif de pressage (3, 9, 10) sont réalisées d'une façon susceptibles d'être chauffées.
  7. Procédé selon la revendication 2, caractérisé en ce que les composants de colle (54) peuvent être chauffés.
  8. Procédé selon la revendication 2, caractérisé en ce que les éléments de bois stratifié sont constitués de plusieurs planches individuelles (33, 34, 35) dont les joints de colle s'étendent de façon décalée par rapport à ceux d'un élément voisin.
  9. Procédé selon la revendication 2, caractérisé en ce que les planches individuelles (33, 34, 34') ont des largeurs différentes et sont tournées de 180° après leur réunion, chaque deuxième couche, pour éviter d'avoir des joints alignés.
EP19930100716 1993-01-18 1993-01-18 Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées Expired - Lifetime EP0607480B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59307743T DE59307743D1 (de) 1993-01-18 1993-01-18 Verfahren und Vorrichtungen zur Herstellung von endlosen Hölzern durch Keilzinkung zu Brettschichtholzträgern und anderen Holzerzeugnissen
EP19930100716 EP0607480B1 (fr) 1993-01-18 1993-01-18 Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930100716 EP0607480B1 (fr) 1993-01-18 1993-01-18 Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées

Publications (2)

Publication Number Publication Date
EP0607480A1 EP0607480A1 (fr) 1994-07-27
EP0607480B1 true EP0607480B1 (fr) 1997-11-26

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EP19930100716 Expired - Lifetime EP0607480B1 (fr) 1993-01-18 1993-01-18 Procédé et dispositif pour la production de poutres en bois lamellées et autres produits par des planches assemblées par dents collées

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DE (1) DE59307743D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI20282A (sl) * 1999-05-03 2000-12-31 RIKO HIŠE, d.o.o. Modularni gradbeni podsestavi z leseno osnovo in postopek njihove izdelave
DE102013109206A1 (de) * 2013-08-26 2015-02-26 Ladenburger Gmbh Verfahren zur Herstellung eines aus mehreren Schnitthölzern bestehenden Konstruktionsschichtholzes sowie Konstruktionsschichtholz
AT518249B1 (de) * 2016-02-16 2017-09-15 Fill Gmbh Verfahren und Vorrichtung zum Herstellen von Brettschichtholz
CN108117006B (zh) * 2018-02-02 2023-12-08 柳城县迪森人造板有限公司 一种用于木板涂胶后的搭放升降台

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1901598A (en) * 1930-05-28 1933-03-14 John L Herzog Co Machine for making panel core stock from mill clippings and the like
US4111247A (en) * 1977-01-13 1978-09-05 Weyerhaeuser Company Log cutting and rejoining process for lumber manufacture
FR2503015A1 (fr) * 1981-04-02 1982-10-08 Landex Ets Dispositif d'aboutage de bois par micro-ondes et chaine de fabrication en continu de panneaux de toiture comportant ce dispositif
FR2624781B1 (fr) * 1987-12-22 1992-08-28 Mathis Sa Ets Paul Procede de fabrication d'elements profiles en bois, dispositif pour la mise en oeuvre de ce procede et elements profiles ainsi obtenus
DE4114820A1 (de) * 1991-05-07 1992-11-12 Reinhard Dimter Keilzinkenpresse sowie kombinierte keilzinkenfraes-beleim und -pressanlagen

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DE59307743D1 (de) 1998-01-08
EP0607480A1 (fr) 1994-07-27

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