EP0607480A1 - Method and apparatus for producing laminated wooden beams and other wooden products from continuously finger jointed wooden boards - Google Patents

Method and apparatus for producing laminated wooden beams and other wooden products from continuously finger jointed wooden boards Download PDF

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Publication number
EP0607480A1
EP0607480A1 EP93100716A EP93100716A EP0607480A1 EP 0607480 A1 EP0607480 A1 EP 0607480A1 EP 93100716 A EP93100716 A EP 93100716A EP 93100716 A EP93100716 A EP 93100716A EP 0607480 A1 EP0607480 A1 EP 0607480A1
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EP
European Patent Office
Prior art keywords
boards
glue
pressure
glulam
glued
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93100716A
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German (de)
French (fr)
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EP0607480B1 (en
Inventor
Erwin Dimter
Reinhard Dimter
Renate Schmid
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Individual
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Individual
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Priority to EP19930100716 priority Critical patent/EP0607480B1/en
Priority to DE59307743T priority patent/DE59307743D1/en
Publication of EP0607480A1 publication Critical patent/EP0607480A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/002Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/006Manufacture 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

  • a solution is sought to produce normal glued laminated timber of different widths with a glulam press without emptying the press, economically producing excess widths from several narrow planks as well as large top and bottom chords, gluing them statically favorably at large distances with smaller cross sections.
  • a combination with other materials should be used to apply or apply layers against fire, temperature, acoustics, moisture or other effects.
  • this is achieved in that the continuous gluing is already carried out in multi-channel systems with the same or different widths.
  • a package of different widths can be processed for the multi-lane press corresponding to the length of the end product.
  • the different widths can be stacked in height and easily called up as required.
  • the glue information for the production of the glulam beams is closed, spring-loaded in width and heatable.
  • the individual components or the glue can be heated for faster chemical reaction (setting).
  • the glue specification is suitable for holding several boards.
  • the conventional method of roller transport is not suitable for achieving a continuous speed due to the glue specification, because a resilient sealing of the board guide due to the glue specification results in an uneven speed, as well as an associated unequal amount of glue application.
  • the glue indication has a resilient stop according to FIG. 9 due to the compressed air cylinder 128, which acts on the board width and a slide for the metered opening of the slot-shaped openings 112 according to FIG. 8.
  • the assembled glue width is turned by 180 degrees so that there is an overlap of the different board widths for the optimal gluing.
  • the boards of the same or different widths specified with glue are placed in the glulam 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 2 pressure units acting on one level have a much higher pressure than the one required for gluing to the glulam beam. This favors the manufacture of the box girder and other profiles.
  • the first rigid pressure unit is used for gluing the lower belt and the second movable one for the upper belt. In this way you can economically produce I-profiles and other suitable surface gluing.
  • the boards from channel 32 or 31 arriving from the finger press are removed from the transport system before the glue is specified.
  • Figure 7 taken and pushed by the driver 93 or 94 in the direction of arrow 96 through the glue. Contrary to the usual way of transport by feed roller.
  • the glue is specified in accordance with Figure 8.
  • the glue emerges through continuously narrowing slots 104, in the form of a cord according to FIGS. 8, 117.
  • the slide 109 releases the required amount by moving in the direction of the arrow 110 + 111.
  • the drive 113 of the slide 109 closes the opening 104.
  • the slide 109 opens.
  • the glue generally consists of two or more components which are fed through the bores 122 + 123 of the tubes 120 + 121.
  • the holes are advantageously made so that the two components 115 + 116 mix.
  • the filling quantity of the glue 117 can be monitored by controls, not shown.
  • the chemical setting of the two components can be accelerated by heating one or both components.
  • the glue specification and pipes can be heated for this purpose.
  • the width of the glue is infinitely adjustable and the elastic pressure of cylinder 128 adapts the glue to the board widths and prevents the glue from escaping to the side. Due to the heating of the glue, the setting is quick and a leaking glue must be quickly fed back to the glue specification in a known manner. For this reason it is a good one Sealing advantageous.
  • the metering pumps 133 + 134 convey the glue with infinitely variable pressure and in dosable quantities through the pipes through the holes 122 + 123 into the glue container.
  • the boards 8 provided with glue by the glue are transported on the heatable pressure piece 24 and pressed by the insertion cylinder 2 in the direction of the arrow 9 against the glulam beam to be glued.
  • the cylinder is pushed back by the wood thickness because the back pressure in cylinder 3 is lower due to the smaller piston area while maintaining the number of bars.
  • the heatable pressure piece 24 remains effective with the force of the cylinder 2 on the back of the inserted board 23.
  • the heatable pressure piece 24 transfers the infinitely variable temperature to the back of the boards 23 until the next boards 23 to be glued are ready for insertion in the direction of the arrow 12.
  • the rhythm from boards to boards is 30 -60 seconds. This time is sufficient to accelerate the chemical or physical setting of the glue in the glue joint.
  • the printing unit 4 with the pressure piece 8 in the direction of the arrow 12 comes into operative position so that the pressure in the glued laminated timber is maintained.
  • the cylinder 2 goes back, the boards 23 are pushed in the direction of arrow 12 onto the heatable pressure piece 24.
  • the pressure piece 24 is pushed in the direction of arrow 9 in a force-locking manner with the previously heated boards 23, then the pressure on the pressure piece 8, the printing unit 4, is reduced.
  • the energy acting in cylinder 2 in the direction of arrow 9 can push back the pressure piece 8 of the impression cylinder 3 by the wood thickness of the boards 23.
  • the last boards 23 of a glulam beam width are not specified with glue.
  • the piston stroke of the cylinder 3 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 8 goes into active position through the hydraulic cylinder 7 of the pressure unit 5. The pressure piece 8 is withdrawn by the cylinder 3 and the glued glulam beam is lifted in the direction of the arrow 11 and transported away in a known manner for surface treatment. The pressure is maintained between the pressure units 4 + 5 and the connection 22 between the pressure pieces 8 absorbs the forces acting in the direction of the arrow 9 + 10.
  • the boards 23 can be inserted further, the adjustable counterforce is taken over by the pressure unit 5 by friction until cylinder 3 with the pressure piece is in the active position. Friction is only possible if the glue has set in the glulam beam, because the possible deformation of the individual boards would destroy the glue joint. Therefore, the pressure piece 8 of the cylinder 3 must initially take over the counter pressure. Since the glulam beams are manufactured in different widths, the mobile printing unit 5 is brought into the required position by the driver 13 in the direction of arrow 10 or 9 by the drive 15. On the construction 1, the perforated rail with the holes 21 is attached, where the compressed air cylinder 20, the bolts 19 in Lock front flange 18. In the production of wide beams according to FIG.
  • the boards arriving from the finger press in channel 31 + 32 are pushed into the press at once by the glue indication.
  • the second pair of boards is turned by 180 degrees in the respective arrow direction 127 by the turning device according to FIG. 2, or the boards are called up by the magazines 146 + 147 accordingly.
  • the gluing takes place in the glulam press according to FIG. 1.
  • the heatable pressure piece 24 serves as a positioning stop for the glulam 55.
  • the beam width is determined by the distance 58 between the beams 51 + 57. For this reason, the mobile printing unit 5 can be moved and locked in the direction of the arrow 9 + 10.
  • the boards 66 are first glued to glulam.
  • the impression cylinder 3 remains in its active position with its pressure piece until the narrower woods 67 are to be glued.
  • the cylinder 2 has an extended piston stroke in the direction of arrow 9 to the end of the press shoe 8.
  • the first three narrower boards are glued under a lower pressure in the direction of arrow 12 of the first printing unit.
  • the output of the hydraulic line 27 is blocked until the narrow boards match the edge 26, after which the pressure is maintained again by the pressure relief valve of the cylinder 3, which is not shown.
  • the half profile 66 + 67 obtained in this way is mixed with the glue 62 glued again in the glulam press according to FIG. 1 with the mobile printing unit 5.
  • the glue specification is advantageously carried out by means of a commercially available glue specification by hand.
  • the cavity can also be used partially to insert empty lines.
  • a fire-retardant layer can advantageously be applied by pressing. Due to the different widths, there are problems in the production of glulam beams. You have to change all the existing presses to different widths, which requires a lot of work. This was the object of the invention to solve it with a new glulam press.
  • the pressure units can be brought into the active position that different widths can be processed.
  • FIG. 6 shows three different widths of a glulam beam which was manufactured in FIG. 1.
  • the printing unit 5 also serves to ensure that when switching from one glulam width to the other, the second upper pressure is brought into the operative position by shifting, so that gluing from one board width to the other can take place without a significant changeover time.
  • the insertion cylinder 2 can have a longer stroke, which extends over the length of the acting pressure shoe 8 of the upper pressure unit 4, which can be movable and adjustable to achieve the required positions.
  • a drive can be provided to completely empty the glulam press according to FIG.
  • the pressure shoe of the printing unit 4 can be connected to the pressure shoe 5 by the part 22, in order to compensate for the back pressure from the direction of the arrows 9 and 10.
  • the insertion cylinder 2 is designed larger in the piston area than the back pressure cylinder 3 which determines the gluing pressure.
  • the back pressure is set by a pressure limiting valve. With this design, no control and monitoring of the glue pressure is required. Only the BAR number of the pressure relief valve is used for the calculation of the glue pressure. All other cylinders of the insertion and top pressure are at least larger by the piston area, as required by the coefficient of friction.
  • the impression cylinder 3 can be fixed in the bores at certain intervals.
  • the piston stroke is advantageously slightly more than the possible gluing width of the glulam beam. If a board has not been specified with glue, there is an empty joint that separates the glulam beam to be glued from the next one. If the empty joint has passed the pressure piece, the second pressure unit is activated.
  • the counter-pressure cylinder is loaded on the other side and the glulam beam is transported by a built-in roller system with a sufficient distance from the printing unit 5 in the longitudinal or transverse direction via the 4-sided planer into the finished store or for beam processing. Immediately after the plywood support is lifted, the impression cylinder returns to the active position.
  • the printing unit 5 maintains the glue pressure and can use friction to pick up the next board for gluing in the plywood press.
  • the pressure pieces 8 of the pressure units 4 + 5 can be heated.
  • the glue 62 is only indicated on the upper side and the lower side can be heated up by the heated pressure pieces 8 in such a way that the glue is set in a few minutes after the upper side has been brought in and the pressure has applied.
  • the heatable pressure pieces 8 can act on the glued laminated timber below.
  • the glue 52 can be applied to the plate 50.
  • the pressure of the printing units 4 + 5 acts and heats the surface, whereupon the glue-laminated wood specified with glue is glued as is known.
  • the glulam press Figure 1 consists of a large number of presses arranged side by side. In the intervals lifting and transport devices can be introduced for handling, positioning and removal of the glued glulam.
  • the glulam press can be created horizontally or vertically at any angle.
  • a running film inserted in the joint separates the glulam.
  • the insert can then consist of several hydraulic cylinders that work side by side.
  • the insertion in the pressing position takes place when the boards indicated with glue are on hold in the longitudinal direction acc. Fig. 10.
  • the glue information can be positioned directly in front of the press infeed. This type of gluing is particularly useful in the manufacture of narrow beams to utilize the installed forces.
  • the rhythm is then twice as long, which means that depending on the length of the boards, the pressure piece can remain in the active position for up to 2 minutes, the setting times are then shorter.
  • impression cylinder 3 To adjust the impression cylinder 3 in the bores 21 of the individual positions, snap-in bolts 19 are provided which are brought into effect by lifting cylinders 20. An adjustment by friction or other known type is possible.
  • the impression cylinder 3 and the upper printing units 4 + 5 or more can be attached to transport chains, ropes or racks to achieve the required positions.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

Wide laminated wooden beams require wide individual boards, which the forestry industry is not always able to provide owing to the intensive exploitation. Boards are glued to form a carpet and the latter is cut to the desired width. This production is expensive. Wide boards must be slotted before the gluing, because of the internal stress. A method is sought which satisfies both national- and forest-economic interests and makes it possible to produce wide laminated wooden beams from narrow boards, or, e.g. as is possible in the steel industry, to produce more load-bearing sections from a small amount of raw material by using UTI and hollow sections, the installations used also being used for normal production. This is achieved in that the gluing of lengthwise joints of a plurality of narrow boards for a given width of the laminated wooden beam in separate webs is automatically carried out and the boards are introduced, via the glue application, into the laminated wood press, glued and pressed, and [lacuna] is capable of producing corresponding sections and of transporting these for further processing or final processing. At the same time, this installation is capable of achieving very high outputs and of making conventional production considerably more economical. <IMAGE>

Description

Breite Bauteile aus Brettschichtholz benötigen ebenso breite einzelne Bretter oder man muß die einzelnen Bretter in deren Breite endlos verleimen und diese breite Fläche dann durch eine Querkreissäge in der gewünschten Breite aufschneiden, der erzielte Abschnitt wird dann längs verleimt. Auf diese Art kann man jede Breite für Brettschichtholzträger herstellen. Diese Herstellung ist kostspielig. Breite Bretter über ca. 250-300 mm werden kaum noch in der gewünschten Dimension vom Sägewerk zugeschnitten und wenn, dann sind diese Bretter viel teurer. Breite Bretter müssen nach DIN 1052 vor der Verleimung zweiseitig geritzt werden, damit die Eigenspannungen wirklos bleiben. Dieses Verfahren ist aufwendig! Das breite Brett der Stammitte kann man wegen der hohen Eigenspannung nicht verwenden. Die Forstindustrie kann diese Mengen und Breiten nicht liefern, weil durch die intensive Nutzung der Wald früher geschlagen wird. In Skandinavien und weltweit mit intensiver Forstnutzung ist die jährliche Holzzuwachsrate sehr gering, es werden kaum Breiten über 250 mm angeboten. Holz wird immer knapper als begehrter Rohstoff ! Wegen der volkswirtschaftlich hohen Bedeutung wird eine sparsame und bessere Holzausnutzung gesucht mit der Möglichkeit das Brettschichtholz statisch besser zu verwerten, wie es z.B. bei der Stahlindustrie durch Vierkanthohlprofile, Doppel- T, oder im Einsatz anderer Profile möglich ist, welche automatisch ohne viel Händling hergestellt werden können. Durch Profilherstellung können mit derselben Menge Holz mehr tragende Bauteile hergestellt werden, als mit dem Vollholz- Brettschichtholzträger möglich ist, der nach diesem Verfahren hochautomatisiert hergestellt werden könnte. Vollholzprofile können mit den auf dem Markt befindllichen Maschinen, Leimangaben und Vorrichtungen nicht hergestellt werden. Besonders auch deshalb, weil die zur Verwendung kommenden Leime eine Abbindezeit von ca. 8-10 Stunden bei Raumtemperatur haben.Wide components made of glulam also need wide individual boards or you have to glue the individual boards endlessly in their width and then cut this wide area in the desired width with a cross-cutting saw, the section obtained is then glued lengthways. In this way, you can produce any width for glulam beams. This manufacture is expensive. Wide boards over approx. 250-300 mm are hardly cut to size in the desired size by the sawmill, and if so, these boards are much more expensive. According to DIN 1052, wide boards must 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. In Scandinavia and worldwide with intensive forest use, the annual rate of wood growth is very low, hardly any widths over 250 mm are offered. Wood is becoming increasingly scarce as a sought-after raw material! Because of the importance of the economy, an economical and better use of wood is sought with the possibility to use the glulam better statically, e.g. is possible in the steel industry through square hollow profiles, double T, or by using other profiles that can be produced automatically without much handling. By producing profiles, more load-bearing components can be produced with the same amount of wood than is possible with the solid wood glulam beam, which could be produced in a highly automated manner using this method. Solid wood profiles cannot be produced with the machines, glue specifications and devices on the market. Especially because the glues used have a setting time of approx. 8-10 hours at room temperature.

Es wird eine Lösung gesucht, mit einer Brettschichtholzpresse normale Brettschichthölzer unterschiedlicher Breite herzustellen ohne die Presse zu entleeren, Überbreiten aus mehreren schmalen Brettern sowie grosse Ober- und Untergurte wirtschaftlich herzustellen, diese statisch günstig in grossen Abständen mit geringeren Querschnitten zu verleimen. Den Preßdruck um 90 Grad versetzt in Wirkung zu bringen um eine Flächenverleimung für Doppel-T, Hohlkasten-und sonstige Profile zu ermöglichen. Die Verleimung muß schnell erfolgen. Eine Kombination mit anderen Werkstoffen soll Verwendung finden um Schichten gegen Feuer, Temperatur, Akustik, Feuchtigkeit oder andere Wirkungen an- oder einzubringen.A solution is sought to produce normal glued laminated timber of different widths with a glulam press without emptying the press, economically producing excess widths from several narrow planks as well as large top and bottom chords, gluing them statically favorably at large distances with smaller cross sections. To bring the pressing pressure into effect by 90 degrees to enable surface gluing for double T, box girder and other profiles. The gluing must be done quickly. A combination with other materials should be used to apply or apply layers against fire, temperature, acoustics, moisture or other effects.

Erfindungsgemäß wird dies dadurch erreicht, daß bei der Endlosverleimung bereits in mehrkanaligen Anlagen mit gleichen oder unterschiedlichen Breiten gearbeitet wird.
Bei paketweiser Verarbeitung in der Keilzinkenfräse kann je ein Paket verschiedener Breiten der mehrbahnigen Presse entsprechender Ausführung verarbeitet werden, zu den Längen des Endproduktes. Die verschiedenen Breiten können in die Höhe gestapelt und leicht nach Bedarf abgerufen werden.
Die Leimangabe zur Herstellung der Brettschichtholzträger ist geschlossen,in der Breite gefedert und beheizbar. Die einzelnen Komponenten oder der Leim kann zur schnelleren chemischen Reaktion (Abbindung) aufgeheizt sein. Die Leimangabe ist zur Aufnahme mehrerer Bretter geeignet. Zur Erreichung einer kontinuierlichen Geschwindigkeit durch die Leimangabe eignet sich das herkömmliche Verfahren des Rollentransportes nicht, weil eine federnde Abdichtung der Bretterführung durch die Leimangabe eine ungleiche Geschwindigkeit ergibt, sowie eine damit verbundene ungleiche Leimauftragsmenge. Deshalb werden die Bretter zwangsläufig geschoben gemäß Figur 7.
Die Leimangabe hat einen federnden Anschlag gemäß Figur 9 durch den Druckluftzylinder 128, der auf die Brettbreite wirkt und einen Schieber zur dosierbaren Öffnung der schlitzförmigen Öffnungen 112 gemäß Figur 8.
Die zusammengestellte verleimbare Breite wird um 180 Grad gewendet, damit eine Überlappung der unterschiedlichen Brettbreiten gegeben ist, für die optimale Verleimung.
According to the invention, this is achieved in that the continuous gluing is already carried out in multi-channel systems with the same or different widths.
With processing in the finger jointing machine in packages, a package of different widths can be processed for the multi-lane press corresponding to the length of the end product. The different widths can be stacked in height and easily called up as required.
The glue information for the production of the glulam beams is closed, spring-loaded in width and heatable. The individual components or the glue can be heated for faster chemical reaction (setting). The glue specification is suitable for holding several boards. The conventional method of roller transport is not suitable for achieving a continuous speed due to the glue specification, because a resilient sealing of the board guide due to the glue specification results in an uneven speed, as well as an associated unequal amount of glue application. Therefore, the boards are inevitably pushed according to FIG. 7.
The glue indication has a resilient stop according to FIG. 9 due to the compressed air cylinder 128, which acts on the board width and a slide for the metered opening of the slot-shaped openings 112 according to FIG. 8.
The assembled glue width is turned by 180 degrees so that there is an overlap of the different board widths for the optimal gluing.

Die mit Leim angegebenen Bretter gleicher oder unterschiedlicher Breite werden in die Brettschichtholzpresse eingebracht, positioniert und verpresst. Die Presse hat eine weitere Druckeinheit, welche die Rückstausicherung übernimmt und eine verschiebbare Druckeinheit für die Aufrechterhaltung des Verleimdruckes, wenn der Gegendruck weggenommen wird. Die auf einer Ebene wirkenden 2 Druckeinheiten haben einen wesentlich höheren Druck, als der Erforderliche für das Verleimen zum Brettschichtholzträger. Die Herstellung der Hohlkasten und anderer Profile wird dadurch begünstigt. Die erste starre Druckeinheit dient zum Anleimen des unteren Gurtes und die zweite bewegliche für den oberen Gurt. Auf diese Art kann man wirtschaftlich I-Profile und andere geeignete Flächenverleimungen herstellen.The boards of the same or different widths specified with glue are placed in the glulam 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 2 pressure units acting on one level have a much higher pressure than the one required for gluing to the glulam beam. This favors the manufacture of the box girder and other profiles. The first rigid pressure unit is used for gluing the lower belt and the second movable one for the upper belt. In this way you can economically produce I-profiles and other suitable surface gluing.

Die folgende Beschreibung zeigt erfindungsgemäß:

  • Figur 1
    zeigt die Brettschichtholzpresse bestehend aus der umgebenden Konstruktion 1, woarauf der Einschubzylinder 2 befestigt ist. Der Zylinder 3 ist durch den Flansch 18 mit dem Arretierungsbolzen 19 verbunden an deren Ende ein Kolben 20 axial in beiden Pfeilrichtungen 11 und 12 mit Energie beaufschlagt werden kann, dadurch werden die Bolzen 19 in die Bohrungen 21 zur Arretierung bewegt. Die Druckeinheiten 4 und 5 bestehend aus den Zylindern 6 + 7 welche auf die Druckstücke 8 wirken. Die Druckeinheiten 4+5 können in Pfeilrichtung 9+10 bewegbar sein durch die Rollen 17, welche durch den Mitnehmer 13 mit dem Band 14 verbunden sind. Der Antrieb erfolgt über das Rad 15 und der Umlenkrolle 16.
    Der Einschubzylinder 2 ist mit dem heizbaren Druckstück 24 verbunden worauf Zwei Bretter mit Leim 23 in Pfeilrichtung 12 von der Auflage 25 zum heizbaren Druckstück 24 gefördert werden. Die Verbindung 22 zwischen den Druckeinheiten 4+5 dient zur Kompensierung der Kräfte aus Pfeilrichtung 9+10. Die Hydraulikeitung 27.
  • Figur 2
    mit den Brettern 146, 144 + 145 unterschiedlicher Breite die jeweils einen Brettschichtholzträger bestimmter Breite ergeben. Die Wendevorrichtung in Pfeilrichtung 143 um 180 Grad mit den Brettern 144+140. Die Magazine 148 mit Halterungen 147 zur Aufnahme der Bretter. Der Quertransport in Pfeilrichtungen 141,142 . Die Pfeilrichtung 142 zum Abtransport gemäß Figur 7 + 8.
  • Figur 3
    mit dem Bretterpaket 46, welches in Pfeilrichtung 34 geschoben und über die Kante 35 vereinzelt wird. Der drehbare Anschlag 36 verhindert ein mögliches Kippen. Das angetriebene Band 42 fördert die Bretter 37,38,39+40 an den Anschlag 33 des Preßschuhes 30 und betätigt den Endschalter 43, in der Position der Preßbahn 32, wo die mit Keilzinken und Leim versehenen Brettenden 47+48 endlos verbunden werden. Die Konstruktion 44 dient zur Aufnahme des Transportsystemes mit den Antriebsrollen 41 und des Förderbandes 42. Die Position 31 der Preßbahn. Die Führungswelle 49 verbunden mit dem Druckschuh 45 in der Konstruktion 44.
  • Figur 4
    zeigt eine Platte 50 aus beliebigem verleimfähigein Werkstoff, die mit Leim 52 angegebenen Brettschichthölzer 51, welche in Pfeilrichtung 53 und 54 mit der Platte 50 verleimt werden. Der fertig verleimte Träger 55 mit ein- oder angebrachter Isolation 56.
  • Figur 5
    zeigt das Brettschichtholz 60 und 61 mit dem Leim 62 welcher in Pfeilrichtung 63 +64 zusammengeleimt das Hohlkastenprofil 65 ergibt.
  • Die Figur 6
    zeigt verleimtes Brettschichtholz 80 mit unterschiedlichen Breiten 81+82, welche durch ein Brett ohne Leim in der Fuge 83+84 getrennte ist.
  • Figur 7
    zeigt eine Transportanlage mit den 2 Achsen 90+91, den Mitnehmern 93+94 welche die Bretter 95 in Pfeilrichtung 96 durch die Leimangabe 97 schieben.
  • Figur 8
    zeigt das Brett 100, wird in Pfeilrichtung 101 durch die Leimangabe 102 geschoben. Die Leimangabe bestehend aus den Gehäuseteilen 103,104,105, dem Deckel 114 der in Pfeilrichtung 107 und 108 bewegbar ist. Das Gehäuseteil 103 ist an dem Ende 104 augespart zur besseren Dosierung des Leimes 117 durch den Schieber 109.
    Die Rollen 106 dienen zur Führung des Schiebers 109 in Pfeilrichtung 110 + 111 welcher durch bekannte Art von dem Antrieb 113 positionierbar ist zur Freigabe der Öffnungen 112, für den Leim 117. Der Leim 117 bestehend aus seinen Komponenten 115 + 116 welche aus den Rohren 120 + 121 austreten und durch die Aussparungen am Ende 104 auf das Brett 100 fließt, welches in Pfeilrichtung 101 gefördert wird. Leim kann aus mehr als 2 Komponenten bestehen.
  • Figur 9
    zeigt die Leimangabe gem. Figur 8, die Rohre 120, 121 mit den Komponenten 115+116 den Leim 117, der auf dem Brett 100 durch die Aussparungen 104 gelangte. In die Rohre 120+121 sind Bohrungen 122,123 eingebracht, wo die Komponennten 115+116 austreten. Die verschiebbaren Rohre 124 + 125 in Pfeilrichtung 126 und 127 verschliessen die Bohrungen 122+123 durch den federnden Druck vom Zylinder 128 in Pfeilrichtung 126. Der Zylinder 128 ist am Gehäuse 104 durch die Kolbenstange 129 befestigt. Der Zylinderflansch 130 ist mit der Konstruktion 132, den Führungswellen 133+134 und dem Begrenzungsteil 135 des Leimbehälters bestehend aus den Teilen,103+104, verbunden.
    Die Dosierpumpen 133+134 fördern mit stufenlos regelbarer Druck und Menge die einzelnen Komponenten 115+116 in den Leimbehälter. Die Austrittsbohrungen 122+123 der Rohre 120+121 sind so zueinander in Wirkstellung, daß ein Vermischen der einzelnen Komponenten 115+116 sofort nach dem Austritt erfolgt.
  • Figur 10
    zeigt chematisch die zwei Einschubzylinder 160+161, mit Leim versehenden Brettern 162+163, die vorder Druckeinheit 165 und die hintere 166. Den Gegendruckzylinder 164. Die Kolbenstangen 167 aller Zylinder. Die Druckstücke 171 + 172, . Die angeleimten Bretter 168+169. Die Folie 170, Folie aufgerollt 173, am Druckstück befestigte Folie 174. Pfeilrichtung 175 und 176.
The following description shows according to the invention:
  • Figure 1
    shows the glulam press consisting of the surrounding construction 1, on which the insertion cylinder 2 is attached. The cylinder 3 is connected by the flange 18 to the locking bolt 19 at the end of which a piston 20 can be axially energized in both arrow directions 11 and 12, as a result of which the bolts 19 are moved into the bores 21 for locking. The printing units 4 and 5 consisting of the cylinders 6 + 7 which act on the pressure pieces 8. The printing units 4 + 5 can be moved in the direction of the arrow 9 + 10 by the rollers 17, which are connected to the belt 14 by the driver 13. The drive takes place via the wheel 15 and the deflection roller 16.
    The insertion cylinder 2 is connected to the heatable pressure piece 24, whereupon two boards with glue 23 are conveyed in the direction of arrow 12 from the support 25 to the heatable pressure piece 24. The connection 22 between the pressure units 4 + 5 serves to compensate the forces from the arrow direction 9 + 10. The hydraulic line 27.
  • Figure 2
    with the boards 146, 144 + 145 of different widths, which each result in a glulam beam of a certain width. The turning device in the direction of arrow 143 by 180 degrees with the boards 144 + 140. The magazines 148 with holders 147 for holding the boards. The cross transport in the direction of the arrows 141, 142. The direction of arrow 142 for removal according to FIGS. 7 + 8.
  • Figure 3
    with the board package 46, which is pushed in the direction of arrow 34 and separated over the edge 35. The rotatable stop 36 prevents possible tilting. The driven belt 42 conveys the boards 37, 38, 39 + 40 to the stop 33 of the press shoe 30 and actuates the limit switch 43, in the position of the press track 32, where the board ends 47 + 48 provided with finger joints and glue are connected endlessly. The construction 44 serves to accommodate the transport system with the drive rollers 41 and the conveyor belt 42. The position 31 of the press track. The guide shaft 49 is connected to the pressure shoe 45 in the construction 44.
  • Figure 4
    shows a plate 50 made of any glue-capable material, the glued laminated timber 51 indicated with glue 52, which are glued to the plate 50 in the direction of the arrows 53 and 54. The finished glued carrier 55 with insulation 56 installed or attached.
  • Figure 5
    shows the glulam 60 and 61 with the glue 62 which glued together in the direction of arrow 63 +64 results in the hollow box profile 65.
  • Figure 6
    shows glued glulam 80 with different widths 81 + 82, which is separated by a board without glue in the joint 83 + 84.
  • Figure 7
    shows a transport system with the 2 axes 90 + 91, the drivers 93 + 94 which push the boards 95 in the direction of arrow 96 through the glue 97.
  • Figure 8
    shows the board 100, is pushed in the direction of arrow 101 through the glue indication 102. The glue specification consisting of the housing parts 103, 104, 105, the cover 114 which can be moved in the direction of the arrow 107 and 108. The housing part 103 is spared at the end 104 for better metering of the glue 117 by the slide 109.
    The rollers 106 serve to guide the slide 109 in the direction of the arrow 110 + 111, which can be positioned by the drive 113 in a known manner to open the openings 112, for the glue 117. The glue 117 consists of its components 115 + 116, which consist of the tubes 120 + 121 emerge and flows through the cutouts at the end 104 onto the board 100, which is conveyed in the direction of arrow 101. Glue can consist of more than 2 components.
  • Figure 9
    shows the glue specification acc. Figure 8, the tubes 120, 121 with the components 115 + 116, the glue 117, which got through the recesses 104 on the board 100. Bores 122, 123 are made in the tubes 120 + 121, where the components 115 + 116 emerge. The displaceable tubes 124 + 125 in the direction of the arrows 126 and 127 close the bores 122 + 123 by the resilient pressure from the cylinder 128 in the direction of the arrow 126. The cylinder 128 is fastened to the housing 104 by the piston rod 129. The cylinder flange 130 is connected to the construction 132, the guide shafts 133 + 134 and the limiting part 135 of the glue container consisting of the parts, 103 + 104.
    The metering pumps 133 + 134 convey the individual components 115 + 116 into the glue container with infinitely variable pressure and quantity. The outlet bores 122 + 123 of the tubes 120 + 121 are in the operative position with respect to one another in such a way that the individual components 115 + 116 are mixed immediately after the outlet.
  • Figure 10
    chemically shows the two insertion cylinders 160 + 161, with glue-providing boards 162 + 163, the front pressure unit 165 and the rear 166. The impression cylinder 164. The piston rods 167 of all cylinders. The pressure pieces 171 + 172,. The glued boards 168 + 169. Foil 170, foil rolled up 173, foil 174 attached to the pressure piece. Direction of arrow 175 and 176.

BESCHREIBUNG DER PATENTANSPRÜCHEDESCRIPTION OF THE PATENT CLAIMS

Die von der Keilzinkenpresse ankommenden Bretter aus dem Kanal 32 oder 31 werden vor der Leimangabe von der Transportanlage gem. Figur 7 übernommen und durch die Mitnehmer 93 oder 94 in Pfeilrichtung 96 durch die Leimangabe geschoben.
Entgegen der üblichen Art des Transportes durch Vorschubwalze. Die Leimangabe erfolgt gem. Figur 8. Durch stufenlos verengbare Schlitze 104 tritt der Leim aus, in Form einer Schnur gemäß Figur 8, 117.
Der Schieber 109 gibt die erforderliche Menge frei, durch die Bewegung in Pfeilrichtung 110 + 111. Der Antrieb 113 des Schiebers 109 verschließt die Öffnung 104 Wenn das nächste Brett zur Leimangabe gefördert wird, öffnet der Schieber 109. Der Leim besteht in der Regel aus zwei oder mehr Komponenten, welche durch die Bohrungen 122 + 123 der Rohre 120 + 121 zugeführt werden . Die Bohrungen sind vorteilhaft so angebracht, daß sich die zwei Komponenten 115 + 116 vermischen. Die Füllmenge des Leimes 117 kann durch nicht dargestellte Steuerungen überwacht werden. Die chemische Abbindung der zwei Komponenten kann beschleunigt werden, indem man einen oder beide Komponenten erwärmt. Die Leimangabe und Rohrleitungen können zu diesem Zweck beheizt werden. Die Leimangabe ist in der Breite stufenlos verstellbar und durch den federnden Druck von Zylinder 128 paßt sich die Leimangabe den Brettbreiten an und verhindert ein seitliches Austreten des Leimes.
Durch die Erwärmung des Leimes ist die Abbindung rasch und ein auslaufender Leim muß auf bekannte Art wieder schnell der Leimangabe zugeführt werden. Aus diesem Grund ist eine gute Abdichtung vorteilhaft. Die Dosierpumpen 133 + 134 fördern den Leim mit stufenlos regelbarem Druck und in dosierbaren Mengen durch die Rohre über die Bohrungen 122 + 123 in den Leimbehälter.
Die von der Leimangabe mit Leim versehenen Bretter 8 werden auf dem beheizbaren Druckstück 24 transportiert und durch den Einschubzylinder 2 in Pfeilrichtung 9 an den zu verleimenden Brettschichtholzträger gedrückt. Der Zylinder wird um die Holzstärke zurückgedrückt, weil der Gegendruck in Zylinder 3 durch die geringere Kolbenfläche bei Aufrechterhaltung der Barzahl niedriger ist. Das heizbare Druckstück 24 bleibt mit der Kraft des Zylinders 2 an der Rückseite des eingeschobenen Brettes 23 wirksam. Das heizbare Druckstück 24 überträgt die stufenlos regelbare Temperatur auf die Rückseite der Bretter 23, bis die nächsten zu verleimenden Bretter 23 auf der Auflage 25 bereitstehen zum Einschub in Pfeilrichtung 12. In der Regel beträgt der Rythmus von Brettern zu Brettern 30 -60 Sekunden. Diese Zeit reicht aus umd die chemische oder physikalische Abbindung des Leimes in der Leimfuge zu beschleunigen. Bevor der Zylinder 2 zurückfährt in Pfeilrichtung 10, tritt die Druckeinheit 4 mit dem Druckstück 8 in Pfeilrichtung 12 so in Wirkstellung, daß der Druck in dem zu verleimenden Brettschichtholz aufrecht erhalten bleibt. Der Zylinder 2 geht zurück, die Bretter 23 werden in Pfeilrichtung 12 auf das heizbare Druckstück 24 geschoben. Das Druckstück 24 in Pfeilrichtung 9 geschoben wird kraftschlüssig mit den vorhergehenden aufgeheizten Brettern 23, dann wird der Druck auf den Druckstück 8, der Druckeinheit 4 zurückgenommen. Gleichzeitig kann die in Zylinder 2 wirkende Energie in Pfeilrichtung 9, das Druckstück 8 des Gegendruckzylinders 3 um die Holzstärke der Bretter 23 zurückdrücken.
Wenn ein Brettschichtholzträger in der gewünschten Breite hergestellt werden soll, werden die letzten Bretter 23 einer Brettschichtholzträgerbreite nicht mit Leim angegeben. Der Kolbenhub des Zylinders 3 ist vorteilhaft so lang, wie die max. herzustellende Brettschichtholzbreite. Wenn eine Leerfuge das Ende der Breite anzeigt, dann, oder einige Einschübe später geht das Druckstück 8 durch den Hydraulikzylinder 7 der Druckeinheit 5 in Wirkstellung. Das Druckstück 8, wird durch den Zylinder 3 zurückgenommen und der verleimte Brettschichtholzträger wird angehoben in Pfeilrichtung 11 und auf bekannte Art zur Oberflächenbearbeitung abtransportiert. Zwischen den Druckeinheiten 4 + 5 wird der Druck aufrecht erhalten und die Verbindung 22 zwischen den Druckstücken 8 nimmt die wirkenden Kräfte in Pfeilrichtung 9 + 10 auf. Der Einschub der Bretter 23 kann weiter erfolgen, die regelbare Gegenkraft übernimmt die Druckeinheit 5 durch Friktion bis Zylinder 3 mit Druckstück in Wirkstellung ist. Die Friktion ist nur möglich, wenn der Leim im Brettschichtholzträger abgebunden hatt, wegen der möglichen Deformierung der einzelnen Bretter würde die Leimfuge zerstört. Deshalb muß anfänglich das Druckstück 8 des Zylinders 3 den Gegendruck übernehmen.Da die Brettschichtholzträger in unterchiedlichen Breiten gefertigt werden, wird die fahrbare Druckeinheit 5 durch den Mitnehmer 13 in Pfeilrichtung 10 oder 9 durch den Antrieb 15 in die erforderliche Position gebracht.
Auf der Konstruktion 1 ist die Lochschiene mit den Löchern 21 angebracht, wo die Druckluftzylinder 20 die Bolzen 19 im Vorderflansch 18 arretieren. Bei der Herstellung von breiten Trägern gemäß Figur 2 werden die von der Keilzinkenpresse ankommenden Bretter im Kanal 31 + 32 auf einmal durch die Leimangabe in die Presse geschoben. Das zweite Brettpaar wird durch die Wendevorrichtung gem.Figur 2 in der jeweiligen Pfeilrichtung 127 um 180 Grad gewendet oder die Bretter werden von den Magazinen 146 + 147 entsprechend abgerufen.
The boards from channel 32 or 31 arriving from the finger press are removed from the transport system before the glue is specified. Figure 7 taken and pushed by the driver 93 or 94 in the direction of arrow 96 through the glue.
Contrary to the usual way of transport by feed roller. The glue is specified in accordance with Figure 8. The glue emerges through continuously narrowing slots 104, in the form of a cord according to FIGS. 8, 117.
The slide 109 releases the required amount by moving in the direction of the arrow 110 + 111. The drive 113 of the slide 109 closes the opening 104. When the next board for conveying glue is conveyed, the slide 109 opens. The glue generally consists of two or more components which are fed through the bores 122 + 123 of the tubes 120 + 121. The holes are advantageously made so that the two components 115 + 116 mix. The filling quantity of the glue 117 can be monitored by controls, not shown. The chemical setting of the two components can be accelerated by heating one or both components. The glue specification and pipes can be heated for this purpose. The width of the glue is infinitely adjustable and the elastic pressure of cylinder 128 adapts the glue to the board widths and prevents the glue from escaping to the side.
Due to the heating of the glue, the setting is quick and a leaking glue must be quickly fed back to the glue specification in a known manner. For this reason it is a good one Sealing advantageous. The metering pumps 133 + 134 convey the glue with infinitely variable pressure and in dosable quantities through the pipes through the holes 122 + 123 into the glue container.
The boards 8 provided with glue by the glue are transported on the heatable pressure piece 24 and pressed by the insertion cylinder 2 in the direction of the arrow 9 against the glulam beam to be glued. The cylinder is pushed back by the wood thickness because the back pressure in cylinder 3 is lower due to the smaller piston area while maintaining the number of bars. The heatable pressure piece 24 remains effective with the force of the cylinder 2 on the back of the inserted board 23. The heatable pressure piece 24 transfers the infinitely variable temperature to the back of the boards 23 until the next boards 23 to be glued are ready for insertion in the direction of the arrow 12. As a rule, the rhythm from boards to boards is 30 -60 seconds. This time is sufficient to accelerate the chemical or physical setting of the glue in the glue joint. Before the cylinder 2 moves back in the direction of the arrow 10, the printing unit 4 with the pressure piece 8 in the direction of the arrow 12 comes into operative position so that the pressure in the glued laminated timber is maintained. The cylinder 2 goes back, the boards 23 are pushed in the direction of arrow 12 onto the heatable pressure piece 24. The pressure piece 24 is pushed in the direction of arrow 9 in a force-locking manner with the previously heated boards 23, then the pressure on the pressure piece 8, the printing unit 4, is reduced. At the same time, the energy acting in cylinder 2 in the direction of arrow 9 can push back the pressure piece 8 of the impression cylinder 3 by the wood thickness of the boards 23.
If a glulam beam is to be produced in the desired width, the last boards 23 of a glulam beam width are not specified with glue. The piston stroke of the cylinder 3 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 8 goes into active position through the hydraulic cylinder 7 of the pressure unit 5. The pressure piece 8 is withdrawn by the cylinder 3 and the glued glulam beam is lifted in the direction of the arrow 11 and transported away in a known manner for surface treatment. The pressure is maintained between the pressure units 4 + 5 and the connection 22 between the pressure pieces 8 absorbs the forces acting in the direction of the arrow 9 + 10. The boards 23 can be inserted further, the adjustable counterforce is taken over by the pressure unit 5 by friction until cylinder 3 with the pressure piece is in the active position. Friction is only possible if the glue has set in the glulam beam, because the possible deformation of the individual boards would destroy the glue joint. Therefore, the pressure piece 8 of the cylinder 3 must initially take over the counter pressure. Since the glulam beams are manufactured in different widths, the mobile printing unit 5 is brought into the required position by the driver 13 in the direction of arrow 10 or 9 by the drive 15.
On the construction 1, the perforated rail with the holes 21 is attached, where the compressed air cylinder 20, the bolts 19 in Lock front flange 18. In the production of wide beams according to FIG. 2, the boards arriving from the finger press in channel 31 + 32 are pushed into the press at once by the glue indication. The second pair of boards is turned by 180 degrees in the respective arrow direction 127 by the turning device according to FIG. 2, or the boards are called up by the magazines 146 + 147 accordingly.

Bei der Herstellung von breiten Brettschichtholzträgern schreibt die DIN 1052 zwingend vor, daß die breiten Bretter in der Planfläche oben und unten eingeritzt werden, damit die Spannung im Holz aufgehoben wird. Bei der Verarbeitung von zwei oder mehreren Brettern unterschiedlicher Breite gemäß Figur 2 gibt es keine Spannungen in der Breite des Brettschichtholzträgers. Das Ritzen beidseitig entfällt! Durch die Zusammenstellung schmaler Hölzer zu einer Brettbreite können schmälere Bretter zu einem hochwertigen Erzeugnis verarbeitet werden, entgegen breiteren Brettern, mit dem hohen Aufwand. Brettschichtholzträger werden statisch nur in den Außenzonen voll beansprucht. Die Figur 4 + 5 zeigen mögliche Lösungen. Das T-Doppelprofil besteht aus dem Mittelteil 50 und dem Brettschichtholz 51 mit dem Leim 52, welches in Pfeilrichtung 53 + 54 zusammenverleimt wird. Die Verleimung geschieht in der Brettschichtholzprese gemäß Figur 1. Das heizbare Druckstück 24 dient als Positionieranschlag des Brettschichtholzes 55. Die Trägerbreite wird von dem Abstand 58, zwischen den Trägern 51 + 57 bestimmt. Die fahrbare Druckeinheit 5 ist aus diesem Grunde in Pfeilrichtung 9 +10 verschieb- und arretierbar.In the production of wide glulam beams, DIN 1052 stipulates that the wide boards are scored in the flat surface at the top and bottom so that the tension in the wood is released. When processing two or more boards of different widths according to FIG. 2, there are no tensions in the width of the glulam beam. There is no scratching on both sides! By combining narrow woods into a board width, narrower boards can be processed into a high-quality product, in contrast to wider boards, with the high effort. Glulam beams are only fully stressed statically in the outer zones. Figures 4 + 5 show possible solutions. The T-double profile consists of the middle part 50 and the glulam 51 with the glue 52, which is glued together in the direction of arrow 53 + 54. The gluing takes place in the glulam press according to FIG. 1. The heatable pressure piece 24 serves as a positioning stop for the glulam 55. The beam width is determined by the distance 58 between the beams 51 + 57. For this reason, the mobile printing unit 5 can be moved and locked in the direction of the arrow 9 + 10.

Bei der Herstellung von Profilen gemäß Figur 5 werden die Bretter 66 zuerst zu Brettschichtholz verleimt. Der Gegendruckzylinder 3 bleibt mit seinem Druckstück in Wirkstellung bis die schmäleren Hölzer 67 verleimt werden sollen. Zu diesem Zweck hat der Zylinder 2 einen verlängerten Kolbenhub in Pfeilrichtung 9 bis über das Ende des Preßschuhes 8. Die ersten drei schmäleren Bretter werden unter einem geringeren Druck in Pfeilrichtung 12 der ersten Druckeinheit verleimt. Beim Zylinder 3 wird der Ausgang der Hydraulikleitung 27 blockiert, bis die schmalen Bretter mit der Kante 26 übereinstimmen, danach erfolgt wieder die Aufrechterhaltung des Druckes durch das nicht dargestellte Überdruckventil des Zylinders 3. Das durch diese Art gewonnene Halbprofil 66+67 wird mit dem Leim 62 in der Brettschichtholzpresse gemäß Figur 1 mit der fahrbaren Druckeinheit 5 wieder verleimt. Zur schnellen Abbindung werden vorteilhaft ein oder mehrere Komponenten, die den Leim 117 ergeben aufgeheizt. Die Leimangabe erfogt vorteilhaft durch eine handelsübliche Leimangabe von Hand. Der Hohlraum kann auch teilweise zum Einbringen von Leerleitungen verwendet werde. Mit dem Verpressen kann vorteilhaft eine feuerhemmende Schicht aufgebracht werden.
Bei der Herstellung von Brettschichtholzträgern gibt es durch die unterschiedliche Breiten Probleme. Man muß die ganzen vorhandenen Preßen auf die unterschiedlichen Breiten umstellen, was einen hohen Arbeitsaufwand erfordert. Dies war Aufgabe der Erfindung, es mit einer neuen Brettschichtholzpresse zu lösen. Die Druckeinheiten können so in Wirkstellung gebracht werden,
daß unterschiedliche Breiten verarbeitet werden können. Figur 6 zeigt drei unterschiedliche Breiten eines Brettschichtholzträgers, der in der Figur 1 gefertigt wurde.
When producing profiles according to FIG. 5, the boards 66 are first glued to glulam. The impression cylinder 3 remains in its active position with its pressure piece until the narrower woods 67 are to be glued. For this purpose the cylinder 2 has an extended piston stroke in the direction of arrow 9 to the end of the press shoe 8. The first three narrower boards are glued under a lower pressure in the direction of arrow 12 of the first printing unit. In cylinder 3, the output of the hydraulic line 27 is blocked until the narrow boards match the edge 26, after which the pressure is maintained again by the pressure relief valve of the cylinder 3, which is not shown. The half profile 66 + 67 obtained in this way is mixed with the glue 62 glued again in the glulam press according to FIG. 1 with the mobile printing unit 5. For quick setting, one or more components that result in the glue 117 are advantageously heated. The glue specification is advantageously carried out by means of a commercially available glue specification by hand. The cavity can also be used partially to insert empty lines. A fire-retardant layer can advantageously be applied by pressing.
Due to the different widths, there are problems in the production of glulam beams. You have to change all the existing presses to different widths, which requires a lot of work. This was the object of the invention to solve it with a new glulam press. The pressure units can be brought into the active position
that different widths can be processed. FIG. 6 shows three different widths of a glulam beam which was manufactured in FIG. 1.

Die Druckeinheit 5 dient auch dazu, daß bei der Umstellung von einer Brettschichtholzbreite zu der anderen, der zweite Oberdruck durch Verschieben so in Wirkstellung kommt, damit ohne wesentliche Umstellzeit von einer zur anderen Brettbreite verleimt werden kann. Der Einschubzylinder 2 kann zu diesem Zweck einen längeren Hub besitzen, der über die Länge des wirkenden Druckschuhes 8 der oberen Druckeinheit 4 reicht, welche zur Erreichung der erforderlichen Positionen fahr- und justierbar sein kann. Zum vollständigen Entleeren der Brettschichtholzpresse gemäß Figur 1 kann ein Antrieb vorgesehen sein.
Der Druckschuh der Druckeinheit 4, kann durch das Teil 22 mit dem Druckschuh 5 verbunden sein, zur Kompensierung der Staukräfte aus der Pfeilrichtung 9 und 10.
The printing unit 5 also serves to ensure that when switching from one glulam width to the other, the second upper pressure is brought into the operative position by shifting, so that gluing from one board width to the other can take place without a significant changeover time. For this purpose, the insertion cylinder 2 can have a longer stroke, which extends over the length of the acting pressure shoe 8 of the upper pressure unit 4, which can be movable and adjustable to achieve the required positions. A drive can be provided to completely empty the glulam press according to FIG.
The pressure shoe of the printing unit 4 can be connected to the pressure shoe 5 by the part 22, in order to compensate for the back pressure from the direction of the arrows 9 and 10.

Der Einschubzylinder 2 ist in der Kolbenfläche größer ausgelegt als der den Verleimdruck bestimmende Gegendruckzylinder 3. Der Gegendruck wird durch ein Druckbegrenzungsventil eingestellt. Durch diese Ausführung benötigt man keine Steuerung und Überwachung des Verleimdruckes. Es wird nur die BAR-Zahl des Druckbegrenzungs - ventiles für die Berechnung des Verleimdruckes angewendet. Alle anderen Zylinder des Einschub- und Oberdruckes sind mindestens um die Kolbenfläche grösser, wie es der Reibungskoeffizient erfordert.The insertion cylinder 2 is designed larger in the piston area than the back pressure cylinder 3 which determines the gluing pressure. The back pressure is set by a pressure limiting valve. With this design, no control and monitoring of the glue pressure is required. Only the BAR number of the pressure relief valve is used for the calculation of the glue pressure. All other cylinders of the insertion and top pressure are at least larger by the piston area, as required by the coefficient of friction.

Der Gegendruckzylinder 3 ist in bestimmten Abständen in den Bohrungen fixierbar. Der Kolbenhub beträgt vorteilhaft etwas mehr, als die mögliche Verleimbreite des Brettschichtholzträgers. Wenn ein Brett nicht mit Leim angegeben worden ist, gibt es eine Leerfuge, welche den zu verleimenden Brettschichtholzträger vom folgenden trennt. Hat die Leerfuge das Druckstück Passiert, dann wird die zweite Druckeinheit in Wirkung gebracht. Der Gegendruckzylinder wird auf der anderen Seite beaufschlagt und der Brettschichtholzträger durch ein eingebautes Rollensystem mit genügend Abstand von der Druckeinheit 5 in Längs- oder Querrichtung über die 4 - Seitenhobelmaschine in das Fertiglager oder zum Abbund transportiert. Der Gegendruckzylinder geht sofort nach dem Anheben des Schichtholzträgers wieder in Wirkstellung.Die Druckeinheit 5 hält in der Zwischenzeit den Verleimdruck aufrecht und kann über Friktion in bekannter Art das nächste Brett zum Verleimen in der Schichtholzpresse aufnehmen. Zur schnellen Abbindung des Leimes 52 in der Figur 4 und des Leimes 62 der Figur 5 können die Druckstücke 8 der Druckeinheiten 4 + 5 beheizbar sein. Bei Verleimung nach Figur 5 wird der Leim 62 nur auf der oberen Seite angegeben und die untere Seite kann so aufge-heizt sein durch die geheizten Druckstücke 8, daß nach Einbringen der oberen Seite und Wirkung des Preßdruckes der Leim in wenigen Minuten abgebunden ist. Bei Profil 4 kann auf die unten justierten Brettschichthölzer die heizbaren Druckstücke 8 wirken. Der Leim 52 kann auf die Platte 50 aufgetragen sein. Auf der Gegenseite wirkt der Preßdruck der Druckeinheiten 4+5 und heizt die Oberfläche auf, worauf das mit Leim angegebene Brettschichtholz wie bekannt geleimt wird.The impression cylinder 3 can be fixed in the bores at certain intervals. The piston stroke is advantageously slightly more than the possible gluing width of the glulam beam. If a board has not been specified with glue, there is an empty joint that separates the glulam beam to be glued from the next one. If the empty joint has passed the pressure piece, the second pressure unit is activated. The counter-pressure cylinder is loaded on the other side and the glulam beam is transported by a built-in roller system with a sufficient distance from the printing unit 5 in the longitudinal or transverse direction via the 4-sided planer into the finished store or for beam processing. Immediately after the plywood support is lifted, the impression cylinder returns to the active position. In the meantime, the printing unit 5 maintains the glue pressure and can use friction to pick up the next board for gluing in the plywood press. For quick setting of the glue 52 in FIG. 4 and the glue 62 in FIG. 5, the pressure pieces 8 of the pressure units 4 + 5 can be heated. In the case of gluing according to FIG. 5, the glue 62 is only indicated on the upper side and the lower side can be heated up by the heated pressure pieces 8 in such a way that the glue is set in a few minutes after the upper side has been brought in and the pressure has applied. In profile 4, the heatable pressure pieces 8 can act on the glued laminated timber below. The glue 52 can be applied to the plate 50. On the opposite side, the pressure of the printing units 4 + 5 acts and heats the surface, whereupon the glue-laminated wood specified with glue is glued as is known.

Die Brettschichtholzpresse Figur 1 besteht aus einer Vielzahl nebeneinander gereihten Pressen. In den Abständen können Hebe- und Transportvorrichtungen eingebracht sein zum Händling, Positionieren und Abtransport von dem Verleimten Brettschichtholz.
Die Brettschichtholzpresse kann horizontal oder vertikal in beliebigem Winkel erstellt werden. Bei kurzen Brettschichtholzträgern oder wenn nicht ausreichend Platz vorhanden ist zur Herstellung von Doppellängen, dann können gem. Figur 10, mehrere Brettschichthölzer hergestellt werden. Eine in der Fuge eingebrachte, mitlaufende Folie trennt die Brettschichthölzer. Der Einschub kann dann aus mehreren Hydraulikzylinder bestehen, welche nebeneinander arbeiten. Der Einschub in Preßposition erfolgt dann, wenn die mit Leim angegebene Bretter in Längsrichtung auf Wartestellung sind gem. Fig.10. Die Leimangabe kann direkt vor der Einlaufbahn der Presse positioniert sein. Diese Verleimart bietet sich besonders bei der Herstellung von schmalen Trägern an zur Auslastung der installierten Kräfte. Der Rythmus ist dan doppelt so lang, dadurch kann je nach Länge der Bretter das Druckstück bis zu 2 Minuten in Wirkstellung bleiben, die Abbindezeiten werden dann kürzer.
The glulam press Figure 1 consists of a large number of presses arranged side by side. In the intervals lifting and transport devices can be introduced for handling, positioning and removal of the glued glulam.
The glulam press can be created horizontally or vertically at any angle. In the case of short glulam beams or if there is insufficient space for the production of double lengths, then according to Figure 10, several glulam can be produced. A running film inserted in the joint separates the glulam. The insert can then consist of several hydraulic cylinders that work side by side. The insertion in the pressing position takes place when the boards indicated with glue are on hold in the longitudinal direction acc. Fig. 10. The glue information can be positioned directly in front of the press infeed. This type of gluing is particularly useful in the manufacture of narrow beams to utilize the installed forces. The rhythm is then twice as long, which means that depending on the length of the boards, the pressure piece can remain in the active position for up to 2 minutes, the setting times are then shorter.

Zur Justierung des Gegendruckzylinders 3 in den Bohrungen 21 der einzelnen Positionen, sind einrastbare Bolzen 19 vorgesehen, die durch Hubzylinder 20 in Wirkung gebracht werden. Eine Justierung durch Friktion oder andere bekannte Art ist möglich.
Der Gegendruckzylinder 3 und die oberen Druckeinheiten 4+5 oder mehrere, können an Transportketten, Seilen oder Zahnstangen befestigt sein für das Erreichen erforderlicher Positionen.
To adjust the impression cylinder 3 in the bores 21 of the individual positions, snap-in bolts 19 are provided which are brought into effect by lifting cylinders 20. An adjustment by friction or other known type is possible.
The impression cylinder 3 and the upper printing units 4 + 5 or more can be attached to transport chains, ropes or racks to achieve the required positions.

An Stelle von Zylindern die mit fluidischen Medien beaufschlagt werden, können Spindeln, Ketten oder sonstige geeignete Antriebe Verwendung finden.Instead of cylinders that are exposed to fluid media, spindles, chains or other suitable drives can be used.

Stand der Technik:State of the art:

Besuch der Messen Atlanta und Ligna Hannover, Gespräche mit führenden Fachleuten des deutschen, französichen und europäischen Holzleimbaus und den Ingenieuren der FMPA der TH Stuttgart-Vaihingen.Visited the trade fairs Atlanta and Ligna Hanover, talks with leading experts in German, French and European wood glue construction and the engineers of the FMPA of the TH Stuttgart-Vaihingen.

Literaturhinweis:Literature reference:

Holzzentralblatt, " Wir bauen mit Holz"
" Holz als Roh- und Werkstoff."
Holzzentralblatt, "We build with wood"
"Wood as raw and material."

Prospekte und Besichtigung von Anlagen der Firmen Dimter GmbH 7918 Illertissen. Minda-Minden, GRECON Alsfeld/Hannover, Owe Petersen, Dänemark. Eisele Pressenbau.Brochures and inspection of systems from Dimter GmbH 7918 Illertissen. Minda-Minden, GRECON Alsfeld / Hanover, Owe Petersen, Denmark. Eisele press construction.

Bezugszahlen :Reference numbers:

Bedeutung der Bezugszahlen :Meaning of the reference numbers:

1.1.
Konstruktionconstruction
2.2nd
EinschubzylinderInsert cylinder
3.3rd
Zylindercylinder
4.4th
DruckeinheitPrinting unit
5.5.
DruckeinheitPrinting unit
6.6.
Zylindercylinder
7.7.
Zylindercylinder
8.8th.
DruckstückPressure piece
9.9.
PfeilrichtungArrow direction
10.10th
PfeilrichtungArrow direction
11.11.
PfeilrichtungArrow direction
12.12th
PfeilrichtungArrow direction
13.13.
MitnehmerCarrier
14.14.
Bandtape
15.15.
Radwheel
16.16.
UmlenkrollePulley
17.17th
Rollenroll
18.18th
Flanschflange
19.19th
ArretierungsbolzenLocking bolt
20.20th
Kolbenpiston
21.21.
BohrungenHoles
22.22.
Verbindungconnection
23.23.
Leimglue
24.24th
DruckstückPressure piece
25.25th
AuflageEdition
26.26.
KanteEdge
27.27.
HydraulikleitungHydraulic line
28.28
Heizungheater
29.29.
ohnewithout
30.30th
Anschlagattack
31.31
Positionposition
32.32.
PasitionPasition
33.33.
Anschlagattack
34.34.
PfeilrichtungArrow direction
35.35.
KanteEdge
36.36.
Anschlag drehbarStop rotatable
37.37.
38,39+40 Bretter38.39 + 40 boards
41.41.
AntriebsrollenDrive rollers
42.42.
FörderbandConveyor belt
43.43.
EndschalterLimit switch
44.44.
Konstruktionconstruction
45.45.
DruckschuhPressure shoe
46.46.
BretterpaketBoard package
47.+4847. + 48
BrettendenBoard ends
49.49.
FührungswelleGuide shaft
50.50.
Platteplate
51.51.
BrettschichthölzerGlulam
52.52.
Leimglue
53. + 5453. + 54
PfeilrichtungArrow direction
55.55.
verleimter Trägerglued carrier
56.56.
an-oder eingebrachte Isolationattached or inserted insulation
57.57.
BrettschichtholzGlulam
58.59.58.59.
ohnewithout
60.+6160. + 61
BrettschichtholzGlulam
62.62.
Leimglue
63. +6463. +64
PfeilrichtungArrow direction
65.65.
HohlkastenprofilBox girder profile
67,-68,6967, -68.69
ohnewithout
70.70.
FlachstahlFlat steel
71,71,
Flachstehl verbundenFlat bar connected
72.72.
tragendes Profilsupporting profile
73.73.
Kolbenpiston
74. 75,74. 75,
PfeilrichtungenArrow directions
80.80.
BrettschichtholzGlulam
81.+8281. + 82
unterschiedliche Breitendifferent widths
83.+8483. + 84
Fuge ohne LeimJoint without glue
85.-8985.-89
ohnewithout
90. + 9190. + 91
Achsenaxes
93. + 9493. + 94
MitnehmerCarrier
95.95.
Bretterboards
96.96.
PfeilrichtungArrow direction
97.97.
LeimangabeGlue specification
98.+9998. + 99
ohnewithout
100.100.
Brettboard
101.101.
PfeilrichtungArrow direction
102.102.
LeimangabeGlue specification
103. 104. 105103. 104. 105
Gehäusecasing
106.106.
Rollenroll
107.+108107. + 108
PfeilrichtungenArrow directions
109.109.
SchieberSlider
110. 111.110, 111
PfeilrichtungArrow direction
112.112.
Öffnungenopenings
113.113.
Antriebdrive
114.114.
Deckelcover
115. 116.115. 116.
KomponentenComponents
117.117.
Leimglue
118.118.
ohnewithout
119.119.
ohnewithout
120. 121.120, 121
RohreTube
122. 123122. 123
BohrungenHoles
124. 125.124, 125.
verschiebare Rohresliding pipes
126. 127.126, 127.
PfeilrichtungenArrow directions
128.128.
Zylindercylinder
129.129.
KolbesntangeKolbesntange
130.130.
ZylinderflanschCylinder flange
131.131.
Kolbenpiston
132.132.
Konstruktionconstruction
133. 134.133, 134
FührungswellenGuide shafts
135.135.
BegrenzungsteilLimiting part
136. 137.138.139.136.137.138.139.
ohnewithout
140.140.
PfeilrichtungArrow direction
141. 142 143.141, 142, 143.
PeilrichtungenBearing directions
144. 145. 146.144, 145, 146.
Bretterboards
147,148,149147,148,149
ohnewithout
150. - 159150.- 159
ohnewithout
160.+161160. + 161
EinschubzylinderInsert cylinder
162+163162 + 163
mit Leim angegebene Hölzer in EinschubpossitionWood specified with glue in insertion position
164.164.
GegendruckzylinderImpression cylinder
165.165.
vordere Druckeineheitfront printing unit
166.166.
hintere Druckeinheitrear printing unit
167.167.
KolbenstangePiston rod
168.+169168. + 169
Bretter angeleimt zum BrettschichtholzBoards glued to the glulam
170.170.
Foliefoil
171.172.171,172.
DruckstückeThrust pieces
173.173.
Folie aufgerolltFoil rolled up
174.174.
Klemmstück mit Folie.Clamping piece with foil.
175 + 176175 + 176
PfeilrichtungArrow direction

Claims (10)

Anlage dadurch gekennzeichnet, daß die zu verleimenden Bretter durch eine 2- oder merhrbahnige Presse längsverleimt werden.System characterized in that the boards to be glued are glued lengthwise by a 2 or multi-lane press. nach Anspruch 1, daß Keilzinkenfräs- und Beleimanlage im Wechsel beschickt wird, entsprechend der Menge der zu verleimenden unterschiedlichen Breiten.according to claim 1, that finger jointing and gluing system is loaded alternately, according to the amount of different widths to be glued. nach mindestens einem der vorgenannten Ansprüche. Dadurch gekennzeichnet, daß die Brettschichtholzpresse in der Verleimbreite mindestens einen verstellbaren Oberdruck besitzt.according to at least one of the preceding claims. Characterized in that the glulam press has at least one adjustable top pressure in the gluing width. nach mindestens einer der vorgenannten Ansprüche, daß der Gegendruckzylinder bewegbar und zum Arretieren ist.according to at least one of the preceding claims that the impression cylinder is movable and for locking. nach mindestens einem der vorgenannten Ansprüche. Dadurch gekennzeichnet, daß der zu verbindende Leim zur Beschleunigung der Abbindung angewärmt ist.according to at least one of the preceding claims. Characterized in that the glue to be bonded is warmed to accelerate the setting. nach mindestens einem der vorgenannten Ansprüche gekennzeichnet, daß die Druckstücke heizbar sind.according to at least one of the preceding claims, characterized in that the pressure pieces can be heated. nach mindesten einem der vorgenannten Ansprüche, daß die Leimangabe geschlossen ist.according to at least one of the preceding claims that the glue indication is closed. nach mindestens einer der vorgenannten Ansprüche, daß die Komponennten des Leimes getrennt in die Leimangabe einfliessenaccording to at least one of the preceding claims, that the components of the glue flow separately into the glue specification dadurch gekennzeichnet, daß die Leimabgabe durch Aussparungen erfolgt.characterized in that the glue is dispensed through recesses. nach mindestens einer der vorgenannten Ansprüche, daß nebeneinander mehrer Brettschichtholzträger hergestellt werden.according to at least one of the preceding claims, that several glulam beams are produced side by side.
EP19930100716 1993-01-18 1993-01-18 Method and apparatus for producing laminated wooden beams and other wooden products from continuously finger jointed wooden boards Expired - Lifetime EP0607480B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19930100716 EP0607480B1 (en) 1993-01-18 1993-01-18 Method and apparatus for producing laminated wooden beams and other wooden products from continuously finger jointed wooden boards
DE59307743T DE59307743D1 (en) 1993-01-18 1993-01-18 Processes and devices for the production of endless wood by finger jointing to glulam beams and other wood products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930100716 EP0607480B1 (en) 1993-01-18 1993-01-18 Method and apparatus for producing laminated wooden beams and other wooden products from continuously finger jointed wooden boards

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EP0607480A1 true EP0607480A1 (en) 1994-07-27
EP0607480B1 EP0607480B1 (en) 1997-11-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050636A3 (en) * 1999-05-03 2001-10-04 Riko Hise, D.O.O. Modular wooden construction elements system with wooden frame elements and their manufacturing process
DE102013109206A1 (en) * 2013-08-26 2015-02-26 Ladenburger Gmbh Process for the production of a construction lumber consisting of several lumbers and construction plywood
EP3208060A1 (en) * 2016-02-16 2017-08-23 Fill Gesellschaft m.b.H. Method and device for manufacturing glued laminated timber
CN108117006A (en) * 2018-02-02 2018-06-05 柳城县迪森人造板有限公司 It is a kind of to put lifting platform for taking after plank gluing

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* 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
DE1991208U (en) * 1964-10-23 1968-08-08 Erwin Dimter, 7918 Illertissen Cycle press
US4111247A (en) * 1977-01-13 1978-09-05 Weyerhaeuser Company Log cutting and rejoining process for lumber manufacture
FR2503015A1 (en) * 1981-04-02 1982-10-08 Landex Ets Roof timber jointing by microwave hardening of adhesive - applied to prepared ends and heated in multimode cavity
FR2624781A1 (en) * 1987-12-22 1989-06-23 Mathis Sa Ets Paul Method for manufacturing shaped wooden elements, device for implementing this method and shaped elements thus obtained
EP0512503A2 (en) * 1991-05-07 1992-11-11 Reinhard Dimter Finger jointing press and combined finger jointing milling, gluing and press installation

Patent Citations (6)

* 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
DE1991208U (en) * 1964-10-23 1968-08-08 Erwin Dimter, 7918 Illertissen Cycle press
US4111247A (en) * 1977-01-13 1978-09-05 Weyerhaeuser Company Log cutting and rejoining process for lumber manufacture
FR2503015A1 (en) * 1981-04-02 1982-10-08 Landex Ets Roof timber jointing by microwave hardening of adhesive - applied to prepared ends and heated in multimode cavity
FR2624781A1 (en) * 1987-12-22 1989-06-23 Mathis Sa Ets Paul Method for manufacturing shaped wooden elements, device for implementing this method and shaped elements thus obtained
EP0512503A2 (en) * 1991-05-07 1992-11-11 Reinhard Dimter Finger jointing press and combined finger jointing milling, gluing and press installation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050636A3 (en) * 1999-05-03 2001-10-04 Riko Hise, D.O.O. Modular wooden construction elements system with wooden frame elements and their manufacturing process
DE102013109206A1 (en) * 2013-08-26 2015-02-26 Ladenburger Gmbh Process for the production of a construction lumber consisting of several lumbers and construction plywood
EP2842707A1 (en) 2013-08-26 2015-03-04 Ladenburger GmbH Laminated wood beam and method for producing the same
EP3208060A1 (en) * 2016-02-16 2017-08-23 Fill Gesellschaft m.b.H. Method and device for manufacturing glued laminated timber
AT518249A4 (en) * 2016-02-16 2017-09-15 Fill Gmbh Method and device for producing glulam
AT518249B1 (en) * 2016-02-16 2017-09-15 Fill Gmbh Method and device for producing glulam
CN108117006A (en) * 2018-02-02 2018-06-05 柳城县迪森人造板有限公司 It is a kind of to put lifting platform for taking after plank gluing
CN108117006B (en) * 2018-02-02 2023-12-08 柳城县迪森人造板有限公司 A put up elevating platform for after plank rubber coating

Also Published As

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DE59307743D1 (en) 1998-01-08

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