EP0518217B1 - Glue laminating wood press for the production of bent glued beams - Google Patents

Glue laminating wood press for the production of bent glued beams Download PDF

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Publication number
EP0518217B1
EP0518217B1 EP92109471A EP92109471A EP0518217B1 EP 0518217 B1 EP0518217 B1 EP 0518217B1 EP 92109471 A EP92109471 A EP 92109471A EP 92109471 A EP92109471 A EP 92109471A EP 0518217 B1 EP0518217 B1 EP 0518217B1
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EP
European Patent Office
Prior art keywords
press
counter
glued
glued beam
plate
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EP92109471A
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German (de)
French (fr)
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EP0518217A1 (en
Inventor
Wilhelm Eissele
Edgar Eissele
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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
    • 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
    • B27M3/0026Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
    • B27M3/0053Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08Manufacture of shaped articles; Presses specially designed therefor
    • B27D1/083Presses specially designed for making the manufacture of shaped plywood articles

Definitions

  • the invention relates to a laminated wood pressing device for the production of bent wood glue trusses.
  • Such binders are generally full-walled and are produced by gluing board slats of the same width.
  • the glue fastener used in wood glue binders unlike dowel and nail connections, allows the full arithmetic cross section of the fastener to be used in the strength calculation because of the lack of flexibility of the fastener; Reduction factors are not to be taken into account. Wood glue constructions have therefore fully established themselves on the market.
  • such rectangular binders are fire-retardant from a minimum thickness of 12 cm without special proof.
  • Laminated wood pressing devices are known for producing straight wood glue trusses or wooden frame legs.
  • binders can be manufactured partly lying, partly standing.
  • the pressing devices regularly have lateral holding devices, between which the individual plywood boards are laterally aligned and held.
  • the plywood stack rests on an abutment device.
  • a pressing device which comprises several presses, the top of the straight or stepped plywood stack is pressed against the abutment and thus against the underside of the stack.
  • the cross-section of the glued plywood stack corresponds to a straight wood glue binder to be produced in each case; however it is It is also possible and also customary to cut out squared timbers of any size and length from this glued plywood stack.
  • Such plywood pressing devices are largely automated.
  • the pressing of the plywood stack inserted in such a device is largely automatic.
  • the binder produced can be lifted out of the device with a crane tool and transported away, but it is also possible to roll the binder out of the device on a roller conveyor.
  • a laminated wood pressing device for the production of bent wood glue trusses of the generic type has a first and a second holding device for the two outer, opposite side surfaces of a wood glue binder, and an abutment device for the underside thereof.
  • the top of the wood glue binder can be pressed in the direction of the underside thereof by means of a pressing device comprising several individual presses.
  • the abutment device of this known laminated wood pressing device also has a plurality of abutments which are adjustably mounted in order to be able to bring the abutment into the most exact possible position along the desired curved line of the wood glue binder.
  • the press cylinders of the press device acting from above are operated hydraulically and can all be connected to a common pressure medium line.
  • this laminated wood pressing device the laminated wood boards required for producing the wood glue binder are individually transported into the device via a feed device.
  • the feed device designed in the manner of a conveyor belt is adjusted in position within the open pressing device in accordance with the respective filling state.
  • the feed device with its discharge end must be positioned lower in the pressing device than in the upper layers of this wood glue binder.
  • the alignment of the abutments in accordance with the lower arch shape of the wood glue binder is also complex in this laminated wood pressing device and also does not allow an exact alignment with reasonable effort.
  • the invention has for its object to provide a plywood pressing device for the production of curved glue-laminated girders, which enables simplified loading with the respectively required plywood boards and in which their abutments can be aligned in a simple manner on the curved bend line course of the glue-laminated girder.
  • this plywood pressing device is characterized in accordance with the invention in that the first holding device is set up in a stationary and essentially vertical manner and supports the press cylinder in that the second holding device consists of several parallel straightening handles and can be pivoted as a whole by means of a horizontal swivel shaft near the ground and is firmly connected to a horizontal rabble leg in the upper region and that the second holding device consists of several parallel directional stems and can be swiveled as a whole by means of a horizontal swivel shaft near the ground and firmly in the upper region a horizontal rabbit leg is connected.
  • Such a laminated wood pressing device has the advantage that curved wood glue binders can be manufactured largely automatically in a similarly simple manner as straight wood glue binders.
  • the abutments can thus be aligned as parallel as possible to the underside of a wood glue binder present in the device in a simple manner.
  • the press plate of the press cylinder which is placed against the upper side can be pivotably mounted on the piston rod of the press cylinder.
  • adhesive members can be arranged on the pressing plate. These adhesive links can be pins projecting away from the press plate and digging into the top of the uppermost layer of the laminated wood slats from above.
  • guides for the press plate or the piston rod to which the press plate is fastened can also be provided .
  • the plywood pressing device 10 shown in Fig. 1 is used to manufacture sheet binders, d. H. of curved wood glue binders 12.
  • Bow binders have an increased load capacity compared to straight binders due to their curved underside 14 and top 16.
  • the device 10 has a substructure 18 with which it is supported on a floor 20.
  • a vertical frame 22 is fastened to the substructure 18 (FIG. 3).
  • This frame 22 has vertically aligned, spaced-apart straightening handles 24. These straightening handles 24 are in the horizontal direction, i. H. in the vertical direction out of the plane of the frame 22, slidably supported by means of the press cylinder 26 (Fig. 3).
  • This frame 28 When the device 10 is closed, there is a second, front vertical frame 28 at a distance parallel to the rear vertical frame 22.
  • This frame 28 also has vertically aligned, spaced-apart straightening handles 30.
  • the straightening handles 30 are aligned so that they are offset from the straightening handles 24.
  • the frame 28 is pivotally mounted about a pivot shaft 32 in the area of the substructure 18.
  • the pivoting is made possible by means of a pressing device 29.
  • the pivoting movement is represented in FIG. 3 by an arrow 34.
  • the frame 28 can thus be pivoted from the vertical orientation shown in FIG. 1 into a horizontal orientation, and thus by approximately 90 degrees.
  • the straightening handles 30 of the front vertical frame 28 are connected in their upper region by a frame leg 36 running parallel to the pivot shaft 32.
  • This frame leg 36 is attached to the outside of the straightening handles 30.
  • a rod-shaped stand 38 which is aligned parallel to the directional stems 30, is present in each case between two directional stems 30.
  • This stand has at its upper end a claw 40, with which it engages around the frame leg 36 from the inside and can thus be supported on the frame leg 36 in the horizontal direction.
  • the stand 38 has two base plates 42 which have an arch 44. The bulge 44 is adapted in size and curvature to the outside of the pivot shaft 32. As a result, the base plate 42 and thus also the stand 38 can sit snugly on the swivel shaft 32.
  • the two base plates 42 and thus also the stand 38 in question can be displaced or shifted as desired in the longitudinal axis 33 of the pivot shaft 32. This arbitrary lateral displacement also allows the claw 40, so that each stand 38 can thereby be placed laterally offset on the swivel shaft 32 and the frame leg 36. This is indicated in FIG.
  • each stand 38 In its longitudinal direction, ie perpendicular to the longitudinal axis 33 of the swivel shaft 32, each stand 38 has a series of bores 45, which are each arranged at a distance a from one another (FIGS. 2-4).
  • a U-shaped holding plate 46 On the inside of the stand is a U-shaped holding plate 46 is present, on which an abutment plate 48 is attached, projecting inward.
  • a stiffening plate 50 fastened under the abutment plate 48 serves for the rigid mounting of the abutment plate 48 on the holding plate 46.
  • the abutment plate 48 forms a lower support for the stack 52 of laminated wood slats.
  • the underside 14 of this laminated wood lamella stack 52 rests on the abutment plate 48 (FIG. 1).
  • the holding plate 46 is screwed to the stand 38 by means of a screw 54 which passes through one of the bores 45.
  • a bolt 56 is also fastened to the holding plate 46 and projects through another of the bores 45.
  • the holding plate 46 is held against rotation on the stand 38 by means of the screw 54 and the bolt 56, which are spaced apart from one another.
  • the high pressure forces 58 acting on the abutment plate 48 which occur during the pressing of the laminated wood lamella stack 52, can be absorbed by the stand 38 and can be derived into the pivot shaft 33 and the upper frame leg 36 and thus into the entire laminated wood pressing device 10.
  • the laminated wood pressing device 10 also has an upper structure 60 which is fixedly connected to the vertical rear frame 22. Press cylinders 62 are fastened to this upper structure 60. These press cylinders 62 are connected in a manner not shown to a corresponding pressure medium source via a hydraulic pressure medium line. By introducing pressure medium into the press cylinder 62, each piston rod 64 of the press cylinder 62 in question can be moved out of the same or retracted in the opposite direction. A press plate 66 is attached to the lower end of each piston rod 64. The attachment is carried out by means of a pivot shaft 68 which is oriented perpendicular to the longitudinal direction of the press cylinder and perpendicular to the longitudinal orientation 67 of the plywood pressing device 10 is.
  • the press plate 66 is pivotally attached to the piston rod 64.
  • the press plate 66 can thus rest against the entire surface of the top 16 of the laminated wood lamella stack 52 as soon as the piston rod 64 has moved out of the press cylinder 62 accordingly.
  • Cantilevered pins 69 are provided on the underside 14 of the press plate 66. These pins 69 can dig somewhat into the top 16. This prevents the pressing plate 66 from being able to move laterally out of the pressing direction when the laminated wood lamella stack 52 is pressed. Due to the low bending stiffness of the individual laminated wood lamellae of the stack 52, the stack 52 already has the curved shape shown in FIG. 1 in its non-compressed state. When pressing, the top 16 will compress very little, so that the deflection of the press plate 66 from the vertical pressing direction will be relatively small. The bending stress caused by this small deflection can generally be easily absorbed by the piston rod 64. By means of a guide rod 70 which is present parallel to the piston rod 64 and to which the press plate 66 is fastened, the occurrence of such bending stresses can be prevented.
  • the production of a bent wood glue binder in the laminated wood pressing device 10 is carried out in the following way. Individual plywood slats 52.1-52.8 are pushed or placed on the frame frame 28 which is pivoted down into the horizontal.
  • the abutment plates 48 are fastened to the stands 38 in accordance with the arch shape of the underside 14. If the corresponding stack 52 is already placed on top of one another, the frame 28 is pivoted into the vertical position shown in FIG. 1.
  • the stack 52 is laterally aligned and held between the alignment posts 24, 30 of the two frame frames 22, 28.
  • the stands 38 are not required as a lateral holder. Because the stands 38 are at a certain distance from the stack 52, the stack 52 does not rest on the stands 38 when the frame 30 is opened.
  • the stands 38 can thus be shifted or precisely aligned in the longitudinal direction 67 during the stacking process.
  • the press cylinders 62 are pressurized with pressure medium, so that their press plates 66 move to the top 16 of the stack 52. Since all press cylinders 62 are connected to a common pressure medium line, all press plates 66 finally press against the upper side 16 with the same force.
  • the pressure plates 66 are moved back again, the front frame 30 is pivoted away from the rear frame 22 and the laminated wood lamella stack 52 is transported out of the device 10, for example by means of a crane. A new plywood slat stack 52 can then be assembled on the front frame 28, which is pivoted into the horizontal.
  • the abutment plate 48 is fastened to the stand 38 in a rotationally fixed manner. As a result, the abutment plate 48 will press more or less strongly into the underside 14. Since the bottom lamella 52.1 is not regularly part of the wood glue later, these press-in does not interfere. However, these press-ins can be avoided or at least greatly reduced if the abutment plate 48 is fastened to the stand 38 so as to be pivotable about a pivot shaft parallel to the pivot shaft 68 of the press plate 66. Similar to the pressure plate 66 can then also Align the abutment plate 48 parallel to the arch shape of the stack 52, ie to the underside 14. The pressure forces 58 acting on the abutment plate 48 can then be distributed over the entire surface of the abutment plate 48 on the underside 14 of the stack 52.

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

Abstract

A laminated-wood press apparatus for the production of curved glued beams has two holding devices for the two outer opposite side faces of a glued beam as well as an abutment device for the underside and a press device for the top side of the glued beam. This press device comprises several individual presses with which the top side can be pressed in the direction of the underside of the glued beam. This laminated-wood press apparatus is distinguished by the fact that the abutment device (48) has several abutments which are adjustably mounted on at least one of the holding devices (30) in such a way that the abutments (48) can be put into as accurate a position as possible along a curved line (14). Furthermore, the press cylinders (62) of the press device can be actuated pneumatically or hydraulically and are attached to a common pressure-medium line. <IMAGE>

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine Schichtholzpreßvorrichtung zum Herstellen von gebogenen Holzleimbindern. Derartige Binder sind im allgemeinen vollwandig und werden durch Verleimen von gleichbreiten Brettlamellen hergestellt. Das bei Holzleimbindern verwendete Verbindungsmittel Leim erlaubt es, im Gegensatz zu Dübel- und Nagelverbindungen, wegen der bei Leim nicht vorhandenen Nachgiebigkeit des Verbindungsmittels, den vollen rechnerischen Querschnitt des Binders bei der Festigkeitsberechnung anzusetzen; Abminderungsbeiwerte sind nicht zu berücksichtigen. Holzleimkonstruktionen haben sich auf dem Markt daher voll durchgesetzt. Dazu kommt noch der Vorteil, daß derartige Rechteckbinder bereits ab einer Mindestdicke von 12 cm ohne besonderen Nachweis feuerhemmend sind.The invention relates to a laminated wood pressing device for the production of bent wood glue trusses. Such binders are generally full-walled and are produced by gluing board slats of the same width. The glue fastener used in wood glue binders, unlike dowel and nail connections, allows the full arithmetic cross section of the fastener to be used in the strength calculation because of the lack of flexibility of the fastener; Reduction factors are not to be taken into account. Wood glue constructions have therefore fully established themselves on the market. In addition there is the advantage that such rectangular binders are fire-retardant from a minimum thickness of 12 cm without special proof.

STAND DER TECHNIKSTATE OF THE ART

Zum Herstellen von geraden Holzleimbindern oder Holzrahmenschenkeln sind Schichtholzpreßvorrichtungen bekannt. In diesen Vorrichtungen können Binder teils liegend, teils stehend hergestellt werden. Die Preßvorrichtungen besitzen dabei regelmäßig seitliche Halteeinrichtungen, zwischen denen die einzelnen Schichtholzbretter seitlich ausgerichtet und gehalten werden. Der Schichtholzstapel ruht auf einer Widerlagereinrichtung auf. Mit Hilfe einer Preßeinrichtung, die mehrere Pressen umfaßt, wird die Oberseite des geraden oder auch oben abgetreppten Schichtholzstapels gegen das Widerlager und damit gegen die Unterseite des Stapels gepreßt. Der verleimte Schichtholzstapel entspricht dabei querschnittsmäßig einem jeweils herzustellenden geraden Holzleimbinder; es ist allerdings auch möglich und auch üblich, aus diesem verleimten Schichtholzstapel verleimte Kanthölzer beliebiger Größe und Länge herauszuschneiden.Laminated wood pressing devices are known for producing straight wood glue trusses or wooden frame legs. In these devices, binders can be manufactured partly lying, partly standing. The pressing devices regularly have lateral holding devices, between which the individual plywood boards are laterally aligned and held. The plywood stack rests on an abutment device. With the help of a pressing device, which comprises several presses, the top of the straight or stepped plywood stack is pressed against the abutment and thus against the underside of the stack. The cross-section of the glued plywood stack corresponds to a straight wood glue binder to be produced in each case; however it is It is also possible and also customary to cut out squared timbers of any size and length from this glued plywood stack.

Derartige Schichtholzpreßvorrichtungen werden weitgehend automatisiert betrieben. So läuft das Verpressen des in eine derartige Vorrichtung eingefügten Schichtholzstapels weitgehend automatisch ab. Nach dem Verpressen und Aushärten des zwischen den einzelen Schichtholzlamellen vorhandenen Leims kann der hergestellte Binder mit einem Kranwerkzeug aus der Vorrichtung herausgehoben und wegtransportiert werden, es ist allerdings auch möglich, den Binder auf einer Rollenbahn aus der Vorrichtung herauszurollen.Such plywood pressing devices are largely automated. Thus, the pressing of the plywood stack inserted in such a device is largely automatic. After pressing and curing the glue present between the individual laminated wood lamellas, the binder produced can be lifted out of the device with a crane tool and transported away, but it is also possible to roll the binder out of the device on a roller conveyor.

Im Gegensatz zum Herstellen von geraden Bindern ist das Herstellen von gebogenen Bindern (Bogenbinder) noch sehr personalintensiv. Aufgrund der unterschiedlichen Bogenform können derartige Holzleimbinder in vorhandenen automatischen Preßvorrichtungen praktisch nicht hergestellt werden. Bogenbinder werden daher gleichsam per Hand hergestellt. Eine übliche Herstellung erfolgt in liegender Weise auf einer ebenen Unterkonstruktion. Die Überhöhung des Bogenbinders wird durch Widerlagerschuhe erreicht, die in der Bogenform entsprechender Ausrichtung in auf der Unterkonstruktion vorhandenen Ankerschienen befestigt sind. Das Ausrichten dieser Widerlagerschuhe ist sehr aufwendig und läßt eine exakte Ausrichtung mit vertretbarem Aufwand in der Praxis nicht zu. Das Verpressen erfolgt mit Hilfe von mehreren Spindelpressen, die einzeln angesetzt und angezogen werden müssen. Das Anziehen der Spindelpressen muß sehr sorgfältig erfolgen. Andererseits muß der Preßvorgang, d.h. das Einrichten und Ansetzen der Pressen, in einer relativ kurzen Zeit erfolgen, damit der Leim nicht vor dem Verpressen bereits abgebunden hat. Dadurch ist der Personalaufwand recht erheblich.In contrast to the production of straight ties, the production of curved ties (bow ties) is still very labor intensive. Due to the different arch shape, such wood glue binders can practically not be produced in existing automatic pressing devices. Bow ties are therefore made by hand, as it were. A usual production takes place in a lying manner on a flat substructure. The cantilever is raised by abutment shoes, which are attached in the arched shape with the appropriate alignment in the anchor rails on the substructure. The alignment of these abutment shoes is very complex and does not allow an exact alignment with reasonable effort in practice. The pressing is done with the help of several screw presses, which have to be individually applied and tightened. The screw presses must be tightened very carefully. On the other hand, the pressing process, ie the setting up and setting of the presses, must take place in a relatively short time so that the glue has not set before the pressing. As a result, the personnel expenditure is quite considerable.

Aus der US-A-4,141,775 ist eine Schichtholzpreßvorrichtung zum Herstellen von gebogenen Holzleimbindern der gattungsgemäßen Art bekannt. Diese Vorrichtung besitzt eine erste und zweite Halteeinrichtung für die beiden äußeren, gegenüberliegenden Seitenflächen eines Holzleimbinders, und eine Widerlagereinrichtung für die Unterseite desselben. Die Oberseite des Holzleimbinders kann in Richtung zur Unterseite desselben mittels einer mehrere einzelne Pressen umfassenden Preßeinrichtung gepreßt werden. Die Widerlagereinrichtung dieser bekannten Schichtholzpreßvorrichtung besitzt ferner mehrere Widerlager, die verstellbar gelagert sind, um die Widerlage in eine möglichst exakte Lage längs der gewünschten Bogenlinie des Holzleimbinders bringen zu können. Die Preßzylinder der von oben einwirkenden Preßeinrichtung werden hydraulisch betätigt und können alle an eine gemeinsame Druckmittelleitung angeschlossen werden. Bei dieser Schichtholzpreßvorrichtung werden die zum Herstellen des Holzleimbinders benötigten Schichtholzbretter über eine Zuführeinrichtung in die Vorrichtung einzeln hineintransportiert. Dazu wird die in Art eines Förderbandes ausgebildete Zuführeinrichtung innerhalb der geöffneten Preßvorrichtung entsprechend des jeweiligen Befüllzustandes lagemäßig verstellt. Bei den unteren Lagen des Holzleimbinders muß die Zuführeinrichtung mit ihrem Abwurfende tiefer als bei den oberen Lagen dieses Holzleimbinders in der Preßvorrichtung positioniert sein. Die Ausrichtung der Widerlager entsprechend der unteren Bogenform des Holzleimbinders ist auch bei dieser Schichtholzpreßvorrichtung aufwendig und läßt ebenfalls eine exakte Ausrichtung mit vertretbarem Aufwand nicht zu.From US-A-4,141,775 a laminated wood pressing device for the production of bent wood glue trusses of the generic type is known. This device has a first and a second holding device for the two outer, opposite side surfaces of a wood glue binder, and an abutment device for the underside thereof. The top of the wood glue binder can be pressed in the direction of the underside thereof by means of a pressing device comprising several individual presses. The abutment device of this known laminated wood pressing device also has a plurality of abutments which are adjustably mounted in order to be able to bring the abutment into the most exact possible position along the desired curved line of the wood glue binder. The press cylinders of the press device acting from above are operated hydraulically and can all be connected to a common pressure medium line. In this laminated wood pressing device, the laminated wood boards required for producing the wood glue binder are individually transported into the device via a feed device. For this purpose, the feed device designed in the manner of a conveyor belt is adjusted in position within the open pressing device in accordance with the respective filling state. In the lower layers of the wood glue binder, the feed device with its discharge end must be positioned lower in the pressing device than in the upper layers of this wood glue binder. The alignment of the abutments in accordance with the lower arch shape of the wood glue binder is also complex in this laminated wood pressing device and also does not allow an exact alignment with reasonable effort.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von dem vorstehenden Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Schichtholzpreßvorrichtung zum Herstellen von gebogenen Holzleimbindern anzugeben, die eine vereinfachte Beschickung mit den jeweils erforderlichen Schichtholzbrettern ermöglicht und bei der ihre Widerlager am gebogenen Biegelinienverlauf des Holzleimbinders auf einfache Weise ausgerichtet werden können.Based on the above prior art, the invention has for its object to provide a plywood pressing device for the production of curved glue-laminated girders, which enables simplified loading with the respectively required plywood boards and in which their abutments can be aligned in a simple manner on the curved bend line course of the glue-laminated girder.

Diese Erfindung ist durch die Merkmale des Hauptanspruchs gegeben. Ausgehend von einer Schichtholzpreßvorrichtung zum Herstellen von gebogenen Holzleimbindern, der vorstehend genannten, gattungsgemäßen Art, zeichnet sich diese Schichtholzpreßvorrichtung erfindungsgemäß dadurch aus, daß die erste Halteeinrichtung ortsfest und im wesentlichen vertikal aufgestellt ist und die Preßzylinder trägt, daß die zweite Halteeinrichtung aus mehreren parallelen Richtstielen besteht und als Ganzes mittels einer bodennahen horizontalen Schwenkwelle geschwenkt werden kann und im oberen Bereich fest mit einem horizontalen Rabmenschenkel verbunden ist und daß ferner die zweite Halteeinrichtung aus mehreren parallelen Richtstielen besteht und als Ganzes mittels einer bodennahen horizontalen Schwenkwelle geschwenkt werden kann und im oberen Bereich fest mit einem horizontalen Rabmenschenkel verbunden ist. Eine derartige Schichtholzpreßvorrichtung hat den Vorteil, daß auch gebogene Holzleimbinder in vergleichbar einfacher Weiser wie gerade Holzleimbinder weitestgehend automatisiert hergestellt werden können.This invention is given by the features of the main claim. Starting from a plywood pressing device for the production of bent wood glue binders, of the aforementioned generic type, this plywood pressing device is characterized in accordance with the invention in that the first holding device is set up in a stationary and essentially vertical manner and supports the press cylinder in that the second holding device consists of several parallel straightening handles and can be pivoted as a whole by means of a horizontal swivel shaft near the ground and is firmly connected to a horizontal rabble leg in the upper region and that the second holding device consists of several parallel directional stems and can be swiveled as a whole by means of a horizontal swivel shaft near the ground and firmly in the upper region a horizontal rabbit leg is connected. Such a laminated wood pressing device has the advantage that curved wood glue binders can be manufactured largely automatically in a similarly simple manner as straight wood glue binders.

Als vorteilhaft hat es sich dabei herausgestellt, die Widerlager schwenkbar zu lagern. Damit können die Widerlager auf einfache Weise möglichst parallel zur Unterseite eines in der Vorrichtung vorhandenen Holzleimbinders ausgerichtet werden.It has proven to be advantageous to pivot the abutments. The abutments can thus be aligned as parallel as possible to the underside of a wood glue binder present in the device in a simple manner.

Da bei einem Bogenbinder auch die Oberseite, gegen die die Preßzylinder angelegt werden, längs einer Bogenlinie vorhanden ist, kann die Preßplatte des Preßzylinders, die gegen die Oberseite angelegt wird, schwenkbar an der Kolbenstange des Preßzylinders gelagert sein. Um zu verhindern, daß die Preßplatte längs der bezüglich der Preßrichtung geneigten Oberseite des Binders seitlich weggleitet, können Haftglieder auf der Preßplatte angeordnet werden. Diese Haftglieder können von der Preßplatte wegkragende Stifte sein, die sich von oben in die Oberseite der obersten Lage der Schichtholzlamellen eingraben. Um zu verhindern, daß die Preßplatte aus der Preßrichtung seitlich ausgelenkt wird, welche Gefahr um so größer ist, je gebogener die Oberseite des Binders ausgebildet ist, können auch Führungen für die Preßplatte bzw. die Kolbenstange, an der die Preßplatte befestigt ist, vorgesehen werden.Since the upper side against which the press cylinders are placed is also present along a curved line in a sheet binder, the press plate of the press cylinder which is placed against the upper side can be pivotably mounted on the piston rod of the press cylinder. In order to prevent the pressing plate from sliding sideways along the upper side of the binder, which is inclined with respect to the pressing direction, adhesive members can be arranged on the pressing plate. These adhesive links can be pins projecting away from the press plate and digging into the top of the uppermost layer of the laminated wood slats from above. In order to prevent the press plate from being laterally deflected from the pressing direction, the risk is greater the more curved the upper side of the binder is, guides for the press plate or the piston rod to which the press plate is fastened can also be provided .

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1:
eine Seitenansicht einer vertikalen Schichtholzpreßvorrichtung nach der Erfindung,
Fig. 2:
eine vergrößerte Teilansicht von Fig. 1,
Fig. 3:
einen Querschnitt durch die Vorrichtung gemäß Fig. 1 und Fig. 2 und
Fig. 4:
eine vergrößerte Teilansicht der Fig. 3 mit der Widerlagerkonstruktion für einen Holzleimbinder.
The invention is described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
Fig. 1:
a side view of a vertical laminated wood pressing device according to the invention,
Fig. 2:
2 shows an enlarged partial view of FIG. 1,
Fig. 3:
a cross section through the device of FIG. 1 and FIG. 2 and
Fig. 4:
an enlarged partial view of FIG. 3 with the abutment construction for a wood glue binder.

WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS OF CARRYING OUT THE INVENTION

Die in Fig. 1 dargestellte Schichtholz-Preßvorrichtung 10 dient zum Herstellen von Bogenbindern, d. h. von gebogenen Holzleimbindern 12. Bogenbinder weisen gegenüber geraden Bindern aufgrund ihrer bogenförmigen Unterseite 14 und Oberseite 16 eine erhöhte Belastbarkeit auf.The plywood pressing device 10 shown in Fig. 1 is used to manufacture sheet binders, d. H. of curved wood glue binders 12. Bow binders have an increased load capacity compared to straight binders due to their curved underside 14 and top 16.

Die Vorrichtung 10 besitzt eine Unterkonstruktion 18, mit der sie auf einem Boden 20 aufgelagert ist. An der Unterkonstruktion 18 ist ein vertikales Rahmengestell 22 befestigt (Fig. 3). Dieses Rahmengestell 22 weist vertikal ausgerichtete, voneinander beabstandete Richtstiele 24 auf. Diese Richtstiele 24 sind in horizontaler Richtung, d. h. in senkrechter Richtung aus der Ebene des Rahmengestells 22 heraus, mittels Preßzylinder 26 verschieblich gelagert (Fig. 3).The device 10 has a substructure 18 with which it is supported on a floor 20. A vertical frame 22 is fastened to the substructure 18 (FIG. 3). This frame 22 has vertically aligned, spaced-apart straightening handles 24. These straightening handles 24 are in the horizontal direction, i. H. in the vertical direction out of the plane of the frame 22, slidably supported by means of the press cylinder 26 (Fig. 3).

Im geschlossenen Zustand der Vorrichtung 10 befindet sich im parallelen Abstand zum hinteren vertikalen Rahmengestell 22 ein zweites, vorderes vertikales Rahmengestell 28. Auch dieses Rahmengestell 28 weist vertikal ausgerichtete, voneinander beabstandete Richtstiele 30 auf. Die Richtstiele 30 sind dabei so ausgerichtet, daß sie versetzt zu den Richtstielen 24 vorhanden sind.When the device 10 is closed, there is a second, front vertical frame 28 at a distance parallel to the rear vertical frame 22. This frame 28 also has vertically aligned, spaced-apart straightening handles 30. The straightening handles 30 are aligned so that they are offset from the straightening handles 24.

Das Rahmengestell 28 ist um eine im Bereich der Unterkonstruktion 18 vorhandene Schwenkwelle 32 schwenkbar gelagert.Das Verschwenken wird mittels einer Preßvorrichtung 29 ermöglicht. Die Schwenkbewegung ist in Fig. 3 durch einen Pfeil 34 dargestellt. Das Rahmengestell 28 kann so aus der in Fig. 1 dargestellten vertikalen Ausrichtung in eine horizontale Ausrichtung, und damit um etwa 90 Grad verschwenkt werden.The frame 28 is pivotally mounted about a pivot shaft 32 in the area of the substructure 18. The pivoting is made possible by means of a pressing device 29. The pivoting movement is represented in FIG. 3 by an arrow 34. The frame 28 can thus be pivoted from the vertical orientation shown in FIG. 1 into a horizontal orientation, and thus by approximately 90 degrees.

Die Richtstiele 30 des vorderen vertikalen Rahmengestells 28 sind in ihrem oberen Bereich durch einen parallel zur Schwenkwelle 32 verlaufenden Rahmenschenkel 36 verbunden. Dieser Rahmenschenkel 36 ist außen an den Richtstielen 30 angebracht. Jeweils zwischen zwei Richtstielen 30 ist ein parallel zu den Richtstielen 30 ausgerichteter stabförmiger Ständer 38 vorhanden. Dieser Ständer besitzt an seinem oberen Ende eine Klaue 40, mit der er von innen um den Rahmenschenkel 36 herumgreift und sich so auf dem Rahmenschenkel 36 in horizontaler Richtung abstützen kann. An seinem unteren Ende besitzt der Ständer 38 zwei Fußplatten 42, die eine Einwölbung 44 aufweisen. Die Einwölbung 44 ist größenmäßig und krümmungsmäßig der Außenseite der Schwenkwelle 32 angepaßt. Dadurch kann die Fußplatte 42 und damit auch der Ständer 38 satt auf der Schwenkwelle 32 aufsitzen. Die beiden Fußplatten 42 und damit auch der betreffende Ständer 38 können in Längsachse 33 der Schwenkwelle 32 beliebig versetzt bzw. verschoben werden. Diese beliebige seitliche Verschiebung läßt auch die Klaue 40 zu, so daß dadurch jeder Ständer 38 beliebig seitlich versetzt auf der Schwenkwelle 32 und dem Rahmenschenkel 36 aufgelagert werden kann.Dies ist in Fig. 2 strichpunktiert beispielhaft angedeutet.The straightening handles 30 of the front vertical frame 28 are connected in their upper region by a frame leg 36 running parallel to the pivot shaft 32. This frame leg 36 is attached to the outside of the straightening handles 30. A rod-shaped stand 38, which is aligned parallel to the directional stems 30, is present in each case between two directional stems 30. This stand has at its upper end a claw 40, with which it engages around the frame leg 36 from the inside and can thus be supported on the frame leg 36 in the horizontal direction. At its lower end, the stand 38 has two base plates 42 which have an arch 44. The bulge 44 is adapted in size and curvature to the outside of the pivot shaft 32. As a result, the base plate 42 and thus also the stand 38 can sit snugly on the swivel shaft 32. The two base plates 42 and thus also the stand 38 in question can be displaced or shifted as desired in the longitudinal axis 33 of the pivot shaft 32. This arbitrary lateral displacement also allows the claw 40, so that each stand 38 can thereby be placed laterally offset on the swivel shaft 32 and the frame leg 36. This is indicated in FIG.

In seiner Längsrichtung, d. h. senkrecht zur Längsachse 33 der Schwenkwelle 32, weist jeder Ständer 38 eine Reihe von Bohrungen 45 auf, die jeweils im Abstand a voneinander angeordnet sind (Fig. 2 - 4). Auf der Innenseite des Ständers ist eine U-förmige Halteplatte 46 vorhanden, an der nach innen wegkragend eine Widerlagerplatte 48 befestigt ist. Eine unter der Widerlagerplatte 48 befestigte Aussteifungsplatte 50 dient zur biegesteifen Befestigung der Widerlagerplatte 48 an der Halteplatte 46. Die Widerlagerplatte 48 bildet ein unteres Auflager für den Stapel 52 von Schichtholzlamellen. Die Unterseite 14 dieses Schichtholzlamellenstapels 52 ruht auf der Widerlagerplatte 48 auf (Fig. 1).In its longitudinal direction, ie perpendicular to the longitudinal axis 33 of the swivel shaft 32, each stand 38 has a series of bores 45, which are each arranged at a distance a from one another (FIGS. 2-4). On the inside of the stand is a U-shaped holding plate 46 is present, on which an abutment plate 48 is attached, projecting inward. A stiffening plate 50 fastened under the abutment plate 48 serves for the rigid mounting of the abutment plate 48 on the holding plate 46. The abutment plate 48 forms a lower support for the stack 52 of laminated wood slats. The underside 14 of this laminated wood lamella stack 52 rests on the abutment plate 48 (FIG. 1).

Die Halteplatte 46 ist mittels einer Schraube 54, die durch eine der Bohrungen 45 hindurchgeht, an dem Ständer 38 festgeschraubt. An der Halteplatte 46 ist ferner ein Bolzen 56 befestigt, der durch eine andere der Bohrungen 45 hindurchragt. Die Halteplatte 46 ist mit Hilfe der Schraube 54 und des Bolzens 56, die einen Abstand voneinander aufweisen, verdrehsicher an dem Ständer 38 gehalten. Außerdem können die auf die Widerlagerplatte 48 einwirkenden hohen Druckkräfte 58, die beim Verpressen des Schichtholzlamellenstapels 52 auftreten, von dem Ständer 38 aufgenommen und in die Schwenkwelle 33 sowie den oberen Rahmenschenkel 36 und damit in die gesamte Schichtholz-Preßvorrichtung 10 abgeleitet werden.The holding plate 46 is screwed to the stand 38 by means of a screw 54 which passes through one of the bores 45. A bolt 56 is also fastened to the holding plate 46 and projects through another of the bores 45. The holding plate 46 is held against rotation on the stand 38 by means of the screw 54 and the bolt 56, which are spaced apart from one another. In addition, the high pressure forces 58 acting on the abutment plate 48, which occur during the pressing of the laminated wood lamella stack 52, can be absorbed by the stand 38 and can be derived into the pivot shaft 33 and the upper frame leg 36 and thus into the entire laminated wood pressing device 10.

Die Schichtholz-Preßvorrichtung 10 weist ferner eine Oberkonstruktion 60 auf, die fest mit dem vertikalen hinteren Rahmengestell 22 verbunden ist. An dieser Oberkonstruktion 60 sind Preßzylinder 62 befestigt. Diese Preßzylinder 62 sind in nicht näher dargestellter Weise über eine hydraulische Druckmittelleitung an einer entsprechenden Druckmittelquelle angeschlossen. Durch Einleiten von Druckmittel in die Preßzylinder 62 kann jede Kolbenstange 64 des betreffenden Preßzylinders 62 aus demselben herausgefahren bzw. in umgekehrter Richtung wieder hineingefahren werden. An dem unteren Ende jeder Kolbenstange 64 ist eine Preßplatte 66 befestigt. Die Befestigung erfolgt mittels einer Schwenkwelle 68, die senkrecht zur Längsrichtung des Preßzylinders und senkrecht zur Längsausrichtung 67 der Schichtholz-Preßvorrichtung 10 ausgerichtet ist. Dadurch ist die Preßplatte 66 schwenkbar an der Kolbenstange 64 befestigt. Die Preßplatte 66 kann so vollflächig an der Oberseite 16 des Schichtholzlamellenstapels 52 anliegen, sobald die Kolbenstange 64 entsprechend weit aus dem Preßzylinder 62 herausgefahren ist.The laminated wood pressing device 10 also has an upper structure 60 which is fixedly connected to the vertical rear frame 22. Press cylinders 62 are fastened to this upper structure 60. These press cylinders 62 are connected in a manner not shown to a corresponding pressure medium source via a hydraulic pressure medium line. By introducing pressure medium into the press cylinder 62, each piston rod 64 of the press cylinder 62 in question can be moved out of the same or retracted in the opposite direction. A press plate 66 is attached to the lower end of each piston rod 64. The attachment is carried out by means of a pivot shaft 68 which is oriented perpendicular to the longitudinal direction of the press cylinder and perpendicular to the longitudinal orientation 67 of the plywood pressing device 10 is. As a result, the press plate 66 is pivotally attached to the piston rod 64. The press plate 66 can thus rest against the entire surface of the top 16 of the laminated wood lamella stack 52 as soon as the piston rod 64 has moved out of the press cylinder 62 accordingly.

An der Unterseite 14 der Preßplatte 66 sind auskragende Stifte 69 vorhanden. Diese Stifte 69 können sich in die Oberseite 16 etwas hineingraben. Dadurch wird verhindert, daß beim Verpressen des Schichtholzlamellenstapels 52 die Preßplatte 66 sich seitlich aus der Preßrichtung herausbewegen kann. Aufgrund der vorhandenen geringen Biegesteifigkeit der einzelnen Schichtholzlamellen des Stapels 52 besitzt der Stapel 52 bereits in seinem nicht verpreßten Zustand seine in Fig. 1 dargestellte gebogene Form. Beim Verpressen wird sich also die Oberseite 16 nur sehr wenig zusammendrücken, so daß die Auslenkung der Preßplatte 66 aus der vertikalen Preßrichtung heraus relativ gering sein wird. Die durch diese geringe Auslenkung verursachte Biegespannung kann im allgemeinen von der Kolbenstange 64 ohne weiteres aufgenommen werden. Durch eine parallel zur Kolbenstange 64 vorhandene Führungsstange 70, an der die Preßplatte 66 befestigt ist, kann das Auftreten von derartigen Biegespannungen verhindert werden.Cantilevered pins 69 are provided on the underside 14 of the press plate 66. These pins 69 can dig somewhat into the top 16. This prevents the pressing plate 66 from being able to move laterally out of the pressing direction when the laminated wood lamella stack 52 is pressed. Due to the low bending stiffness of the individual laminated wood lamellae of the stack 52, the stack 52 already has the curved shape shown in FIG. 1 in its non-compressed state. When pressing, the top 16 will compress very little, so that the deflection of the press plate 66 from the vertical pressing direction will be relatively small. The bending stress caused by this small deflection can generally be easily absorbed by the piston rod 64. By means of a guide rod 70 which is present parallel to the piston rod 64 and to which the press plate 66 is fastened, the occurrence of such bending stresses can be prevented.

Das Herstellen eines gebogenen Holzleimbinders in der Schichtholz-Preßvorrichtung 10 erfolgt auf folgende Weise. Auf das in die Horizontale heruntergeschwenkte Rahmengestell 28 werden einzelne Schichtholzlamellen 52.1 - 52.8 aufgeschoben bzw. aufgelegt. Die Widerlagerplatten 48 sind dabei entsprechend der Bogenform der Unterseite 14 an den Ständern 38 befestigt. Sofern der entsprechende Stapel 52 fertig übereinandergelegt vorhanden ist, wird das Rahmengestell 28 in seine in Fig. 1 dargestelle vertikale Position verschwenkt. Der Stapel 52 wird dabei zwischen den Richtstielen 24, 30 der beiden Rahmengestelle 22, 28 seitlich ausgerichtet und gehalten. Die Ständer 38 werden nicht als seitliche Halterung benötigt. Dadurch, daß die Ständer 38 einen gewissen Abstand vom Stapel 52 aufweisen, ruht im aufgeklappten Zustand des Rahmengestells 30 der Stapel 52 nicht auf den Ständern 38 auf. Die Ständer 38 können so noch während des Aufstapelvorganges in Längsrichtung 67 verschoben bzw. exakt ausgerichtet werden.The production of a bent wood glue binder in the laminated wood pressing device 10 is carried out in the following way. Individual plywood slats 52.1-52.8 are pushed or placed on the frame frame 28 which is pivoted down into the horizontal. The abutment plates 48 are fastened to the stands 38 in accordance with the arch shape of the underside 14. If the corresponding stack 52 is already placed on top of one another, the frame 28 is pivoted into the vertical position shown in FIG. 1. The stack 52 is laterally aligned and held between the alignment posts 24, 30 of the two frame frames 22, 28. The stands 38 are not required as a lateral holder. Because the stands 38 are at a certain distance from the stack 52, the stack 52 does not rest on the stands 38 when the frame 30 is opened. The stands 38 can thus be shifted or precisely aligned in the longitudinal direction 67 during the stacking process.

Anschließend an das Zusammenschwenken der beiden Rahmengestelle und an das gegenseitige Verriegeln der beiden Rahmengestelle 22, 28 werden die Preßzylinder 62 mit Druckmedium beaufschlagt, so daß sich deren Preßplatten 66 zur Oberseite 16 des Stapels 52 bewegen. Da alle Preßzylinder 62 an eine gemeinsame Druckmittelleitung angeschlossen sind, drücken alle Preßplatten 66 schließlich mit der gleich großen Kraft gegen die Oberseite 16.Subsequent to the swiveling together of the two frame frames and the mutual locking of the two frame frames 22, 28, the press cylinders 62 are pressurized with pressure medium, so that their press plates 66 move to the top 16 of the stack 52. Since all press cylinders 62 are connected to a common pressure medium line, all press plates 66 finally press against the upper side 16 with the same force.

Nach einer ausreichenden Abbindezeit für den Leim zwischen den einzelnen Lamellen des Stapels 52 werden die Preßplatten 66 wieder zurückgefahren, das vordere Rahmengestell 30 vom hinteren Rahmengestell 22 weggeschwenkt und der Schichtholzlamellenstapel 52 aus der Vorrichtung 10 - beispielsweise mittels eines Kranes - heraustransportiert. Auf dem in die Horizontale geschwenkten vorderen Rahmengestell 28 kann dann ein neuer Schichtholzlamellenstapel 52 zusammengesetzt werden.After a sufficient setting time for the glue between the individual lamellae of the stack 52, the pressure plates 66 are moved back again, the front frame 30 is pivoted away from the rear frame 22 and the laminated wood lamella stack 52 is transported out of the device 10, for example by means of a crane. A new plywood slat stack 52 can then be assembled on the front frame 28, which is pivoted into the horizontal.

Im vorliegenden Beispielsfall ist die Widerlagerplatte 48 verdrehfest an dem Ständer 38 befestigt. Dadurch wird sich die Widerlagerplatte 48 mehr oder weniger stark in die Unterseite 14 hineinpressen. Nachdem die unterste Lamelle 52.1 regelmäßig nicht Teil des späteren Holzleimbinders ist, stören diese Einpressungen nicht. Diese Einpressungen lassen sich aber vermeiden bzw. zumindest stark vermindern, wenn die Widerlagerplatte 48 um eine zur Schwenkwelle 68 der Preßplatte 66 parallele Schwenkwelle schwenkbar an dem Ständer 38 befestigt wird. Ähnlich wie die Preßplatte 66 kann sich dann auch die Widerlagerplatte 48 parallel zur Bogenform des Stapels 52, d. h. zur Unterseite 14 ausrichten. Die auf die Widerlagerplatte 48 einwirkenden Druckkräfte 58 können sich dann über die ganze Fläche der Widerlagerplatte 48 auf die Unterseite 14 des Stapels 52 verteilen.In the present example, the abutment plate 48 is fastened to the stand 38 in a rotationally fixed manner. As a result, the abutment plate 48 will press more or less strongly into the underside 14. Since the bottom lamella 52.1 is not regularly part of the wood glue later, these press-in does not interfere. However, these press-ins can be avoided or at least greatly reduced if the abutment plate 48 is fastened to the stand 38 so as to be pivotable about a pivot shaft parallel to the pivot shaft 68 of the press plate 66. Similar to the pressure plate 66 can then also Align the abutment plate 48 parallel to the arch shape of the stack 52, ie to the underside 14. The pressure forces 58 acting on the abutment plate 48 can then be distributed over the entire surface of the abutment plate 48 on the underside 14 of the stack 52.

Claims (5)

  1. Laminated wood press for the production of bent glued beams (12), having
    - a first and second holding device (22, 28) for the two outer, opposing side faces of a glued beam (12),
    - a counter-bearing device for the bottom side (14) of the glued beam (12),
    - a press device, comprising a plurality of individual presses (62), for the top side (16) of the glued beam (12), by which the top side (16) can be pressed in the direction of the bottom side (14) of the glued beam (12),
    - the counter-bearing device (48) possessing a plurality of counter-bearings (48), which are mounted so that they are adjustable in such a way that the counter-bearings (48) can be brought into as exact a position as possible along a curved line,
    - the press cylinders (62) of the press device are hydraulically operated and can be connected up to a common pressure-medium line,
    characterized in that
    - the first holding device (22) is set up in a fixed and essentially vertical position and carries the press cylinders (62),
    - the second holding device (28) comprises a plurality of parallel straightening posts (30) and can be pivoted in its entirety by means of a horizontal pivot shaft (32) located close to the ground and is connected in the upper region fixedly to a horizontal frame piece (36), and
    - a plurality of uprights (38) are provided, which are disposed parallel to the holding device and are supported such that they are positionally displaceable on the pivot shaft (32) and frame piece (36) and exhibit, at an interval (a), a plurality of catch-mountings (45) for the counter-bearings (48).
  2. Press according to Claim 1, characterized in that
    - the counter-bearings are mounted pivotably such that their counter-bearing face can be aligned as parallel as possible to the bottom side of a glued beam which is present in the press.
  3. Press according to one of the preceding claims, characterized in that
    - the presses (62) respectively possess a piston rod (64) with an end-side press plate (66),
    - the press plate (66) is mounted pivotably (68) on the piston rod (64).
  4. Press according to Claim 3, characterized in that
    - present on the press plate (66) are bonding members (69) by which the press plate can be applied in slip-proof manner to the top side (16) of a glued beam.
  5. Press according to Claim 4, characterized in that
    - the bonding members comprise pins (69) projecting from the press plate.
EP92109471A 1991-06-08 1992-06-04 Glue laminating wood press for the production of bent glued beams Expired - Lifetime EP0518217B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119009 1991-06-08
DE4119009A DE4119009A1 (en) 1991-06-08 1991-06-08 LAMINATE PRESSING DEVICE FOR PRODUCING CURVED WOODEN GLUE BINDERS

Publications (2)

Publication Number Publication Date
EP0518217A1 EP0518217A1 (en) 1992-12-16
EP0518217B1 true EP0518217B1 (en) 1995-08-23

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Application Number Title Priority Date Filing Date
EP92109471A Expired - Lifetime EP0518217B1 (en) 1991-06-08 1992-06-04 Glue laminating wood press for the production of bent glued beams

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EP (1) EP0518217B1 (en)
AT (1) ATE126750T1 (en)
DE (2) DE4119009A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315606C1 (en) * 1993-05-11 1994-02-03 Reinhold Hes Gmbh & Co Kg Masc Frame press with ram position adjustment - has long-stroke rams and adjusting ones extensible to length of press beams and have cylinders fixable to lower beams
EP0819201A1 (en) * 1995-02-28 1998-01-21 Hausbau Schöb AG Wooden construction elements and system for interconnecting the same
ES1032228Y (en) * 1995-10-05 1996-09-01 Prensas Ramarch Sl HYDRAULIC PRESS FOR THE FORMATION OF FRAMES AND PANELS FOR DOORS AND THE LIKE.
ITUD20100219A1 (en) * 2010-11-29 2012-05-30 Gianfranco Ventre MACHINE AND PROCEDURE FOR SHAPING A WOODEN BEAM
DE202012011616U1 (en) * 2012-12-05 2013-12-06 H.I.T. Maschinenbau Gmbh + Co. Kg Press for laminated beams
DE102013001100B4 (en) * 2013-01-23 2020-07-30 Minda Industrieanlagen Gmbh Device and method for producing glue-laminated timber
CN110328730B (en) * 2019-07-31 2023-12-29 烟台博海木工机械有限公司 Wood beam press
CN112589929A (en) * 2020-12-11 2021-04-02 黄祥梅 Plate blank positioning tool in plywood hot-pressing process
CN114030040A (en) * 2021-12-09 2022-02-11 湖南红崀山木业科技有限公司 Disposable plywood multilayer processing equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141775A (en) * 1977-08-12 1979-02-27 Bohemia, Inc. Hydraulic board-laminating press
EP0211810A1 (en) * 1985-06-10 1987-02-25 Remo Angelucci Moulding plate equipped for the forming of curved laminate structures
US4776919A (en) * 1986-01-24 1988-10-11 Trus Joist Corporation Laminated lumber press apparatus

Also Published As

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ATE126750T1 (en) 1995-09-15
EP0518217A1 (en) 1992-12-16
DE59203346D1 (en) 1995-09-28
DE4119009A1 (en) 1992-12-10

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