EP2020195A2 - Method for manufacturing a foldable panel - Google Patents

Method for manufacturing a foldable panel Download PDF

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Publication number
EP2020195A2
EP2020195A2 EP08013405A EP08013405A EP2020195A2 EP 2020195 A2 EP2020195 A2 EP 2020195A2 EP 08013405 A EP08013405 A EP 08013405A EP 08013405 A EP08013405 A EP 08013405A EP 2020195 A2 EP2020195 A2 EP 2020195A2
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EP
European Patent Office
Prior art keywords
glue
side edges
glue thread
thread
foldable plate
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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
EP08013405A
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German (de)
French (fr)
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EP2020195B1 (en
EP2020195A3 (en
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Kronotec AG
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Kronotec AG
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Priority to PL08013405T priority Critical patent/PL2020195T3/en
Publication of EP2020195A2 publication Critical patent/EP2020195A2/en
Publication of EP2020195A3 publication Critical patent/EP2020195A3/en
Application granted granted Critical
Publication of EP2020195B1 publication Critical patent/EP2020195B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements
    • A47B96/202—Furniture panels or like furniture elements with a continuous layer allowing folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/18—Manufacture or reconditioning of specific semi-finished or finished articles of furniture or of doors

Definitions

  • the invention relates to a method for producing a foldable plate, a device for this and a foldable plate.
  • Foldable plates in the context of this invention are in particular thin wood-based panels, which are used as rear walls for furniture (cabinets, shelves). As a rule, 2 mm to 6 mm thick chipboard or fiber boards are used. The top of the plates is often refined, z. B. painted. This page should not be damaged. The side edges of adjacent plate parts are foldably interconnected. Either adhesive is used in the manner of a hinge, such as. B. in the DE 198 04 787 proposed. Alternatively, bands are applied to the side edges, which may even extend to the bottom of the plate, such as. B. in the DE 29 15 787 , of the EP 1532 895 or the DE 103 22 218 proposed.
  • the invention is based on the object to provide a folding plate, which allows a secure connection of the plate parts and a plurality of folds with less adhesive.
  • a simple device is proposed with which a continuous process for producing the folding plates can be realized.
  • the foldable plate according to the invention consists of at least two foldable connected panels of wood material, characterized in that two adjacent side surfaces have at least one at least partially connected to the side surfaces glue thread.
  • the side surfaces are therefore not known from the prior art, covered over the entire surface, but only partially.
  • the size of the glue thread as explained below, has particular strength properties, a particularly secure connection of the plates is proposed.
  • the at least one glue thread is arranged continuously arranged over the two side surfaces of the plates to be joined.
  • the at least one size thread is arranged discontinuously. Which of these versions is selected, can be determined in accordance with the respective plates or their load.
  • the glue thread z. B. can be selected depending on the requirement profile of the produced foldable plate.
  • the at least one glue thread may be arranged at least partially overlapping.
  • the glue thread consists of a variety of filaments, z. B. of monofilaments or multifilaments and is at least partially enveloped by an adhesive.
  • the filaments of the glue thread can be arranged in various ways, for. B. largely parallel to each other, arranged crossing each other, they can also be interwoven.
  • a method for producing a foldable plate in which at least two pieces of wood material are joined to the top, bottom and side edges at two adjacent side edges.
  • the at least two plate parts are connected by at least one glue thread.
  • the bonding of the plate parts by a glue thread saves considerable amounts of material to adhesive and thus costs.
  • the glue thread is extremely fast to apply, so that the production speed can be increased to more than 25 m / min. Typically, it is between 25 m / min and 40 m / min. This aspect also contributes significantly to the economy of the method according to the invention.
  • the glue thread which is used according to the invention for joining plate parts, usually consists of numerous monofilaments or multifilaments, which are at least partially wrapped with adhesive. Typical fibers are z. B. glass fiber or polyamide fibers. Due to the internal thread or the filaments, the glue thread has a high tensile strength in the longitudinal direction of the thread. It can therefore be processed well at high production speeds.
  • a hotmelt adhesive is used as adhesive for the glue threads.
  • Hotmelt adhesives are usually easy to process.
  • Particularly preferred is the use of z.
  • polyamide adhesives or postcrosslinking polyurethane adhesive Although the post-crosslinking PU adhesive must be stored and processed under a protective gas atmosphere, it undergoes a genuine chemical bond with the wood fibers in a post-crosslinking reaction after application. This leads to a high quality bond.
  • Glue threads used to join panel members to a foldable panel are manufactured as continuous strands that allow continuous work when joining panel members. They can be used in customized dimensions. Common are finished glue threads with a thickness of 50 to 250 microns and a width of 1 to 10 mm for connecting the plate parts. It has proved to be advantageous to select the glue thread so that its width at least equal to the width of a plate to be processed into a folding plate. In a folding plate of two 4 mm HDF boards, the glue thread is therefore preferably 4 mm wide or possibly wider.
  • Glue threads can be guided over the adjacent side edges of the plate parts to be joined so that a reliable and resilient foldable plate is formed.
  • several glue threads can be placed on the side edges of the plate parts, for example, two crossed glue threads z. B. be applied in opposing zig-zag or wave patterns.
  • Glue threads can also be connected to a scrim or tissue. This scrim or fabric can then be placed in linear motion on the side edges to be joined.
  • a scrim or tissue may advantageously be composed of different glue strands become. Depending on the direction or position of the individual glue threads in the scrim or tissue z. As a particularly tensile thread or a particularly high adhesive application can be selected to produce an optimum between the strength of the compound and the cost of the glue line.
  • the at least one glue thread is guided over the adjoining side edges of the plate parts to be joined and applied to the side edges.
  • the glue thread can be alternately deposited on the adjoining side edges, for example in a zig-zag pattern or in a wavy pattern.
  • the at least one glue thread is arranged at an angle relative to the mutually parallel upper sides and lower sides of the plate parts, advantageously at an angle ⁇ between 10 ° and 85 ° relative to the upper side of the plate parts.
  • the glue thread when using thermoplastic adhesives is preferred that the glue thread is heated when hitting the side edges.
  • the warm-up can be done in any way.
  • the warm-up can thus z. B. done with economical use of energy and it is an intensive bond to the wood material produced.
  • the rolling or pressing the glue thread on the side edges leads according to an advantageous embodiment of the invention to an intense and firm bond to the wood material.
  • the cooling of the glue thread after application to the side edges contributes to the fact that the connection between the plate parts already has a high strength shortly after application of the glue thread.
  • the device has at least one supply of glue thread, which can then be applied to the side edges of the wood material board parts to be joined.
  • the stock can be designed differently, preferably it is designed such that the glue thread is removed by unrolling. If several glue threads are to be processed, several stocks can be arranged in parallel.
  • the head can carry one or more glue threads. If several glue threads are to be processed, several heads may also be provided for guiding the glue threads.
  • the means for preheating the glue thread may be arranged before or after the head for guiding the glue thread, depending on the type of glue thread.
  • the means for applying the glue thread on the adjacent side edges are usually formed as rollers which press the glue thread that has been deposited on the side edges there.
  • the device according to the invention can be stationary or movable.
  • the glue thread can therefore be applied to movable or stationary wood-based panels.
  • the device for applying a glue thread in operation cooperates with a feed device for the plate parts to be joined. In this way, the desired production speeds can be achieved.
  • the head when monofilaments are processed, the head is designed to guide the glue thread movable. He moves alternately on the side edges of the plate parts to be joined and places the glue thread alternately on these side edges. In this way, a foldable connection of the plate parts is made as soon as the glue thread is fixed on the plate parts.
  • the head is preferably designed in this embodiment with an amplitude which is not greater than the strength of the side edges to be joined. This ensures that the glue thread is actually always placed only on the side edges of the plate parts. According to a plate thickness of 2 mm to 6 mm for each plate part to be connected, the amplitude of the head is thus usually between 3.5 and 12 mm.
  • a device provided with a moving head is then adjusted in relative movement to the plate parts to be joined in such a way that the head (or the glue thread deposited by the head) has a vibration length of up to 30 mm, preferably of up to 40 mm, more preferably of up to 50 mm.
  • the Fig. 1 shows a section of a folding plate, which consists of two HDF plates 2, 4, which are connected to each other by means of a glue thread 14 foldable.
  • the HDF plates 2, 4 have a thickness of 3 mm and a painted surface 10, 12.
  • the HDF plates 2, 4 are flush with each other, so that the side edges 6, 8 arranged in a plane and the painted top sides 10, 12 facing each other.
  • the side edges 6, 8 are executed straightened, but have no further profiling.
  • the glue thread 14 consists of a plurality of substantially parallel to each other arranged fine individual filaments or filaments, which are fixed to each other by means of a first liquid and then cooled hot melt adhesive.
  • the monofilaments are made of polyamide, but could also be made of glass silk or polyester or a material with comparable properties.
  • the glue thread 14 has a thickness of 0.1 mm and a width of 3 mm.
  • the glue thread 14 is designed as a continuous thread.
  • the melting temperature of the hotmelt adhesive of the glue thread 14 is 160 ° C, wherein usually depending on the composition of the hotmelt adhesive used, a temperature window, for example, from 95 ° C to 180 ° C is adjustable.
  • Commercially available glue threads can be used according to the invention.
  • the glue thread 14 is arranged covering both side edges 6, 8 in a zig-zag pattern and connected to the side edges 6, 8 of the HDF plates 2,4 under the action of temperature and pressure. The joint allows for multiple folding of HDF plates 2,4.
  • the glue thread 14 or the glue threads are applied to the side edges 6, 8 of the HDF plates 2, 4 as described below:
  • the HDF plates 2, 4 are guided past a device, not shown, for applying the glue thread 14.
  • the device is arranged so that the HDF plates 2,4 are horizontal, so that the glue thread 14 is applied to the vertically oriented side edges 6, 8.
  • the HDF plates 2, 4 are secured during the application of the glue thread 14 against displacement, for example by means of rollers which press the HDF plates 2, 4 against each other.
  • guide strips can be used, which are arranged in front of and behind the HDF plates, and thus also act as fixing stops.
  • the glue thread 14 is provided wound on a roll and processed in the manufacture of a folding plate as an endless thread.
  • the glue thread 14 is removed from the roll, alternately deposited from a head in the heated state in a zig-zag pattern over the side edges 6, 8 of the HDF plates 2, 4 to be joined.
  • the head for guiding the glue thread 14 is arranged to be movable.
  • the glue thread 14 is deposited in each case with an amplitude of 6 mm.
  • the feed rate of the HDF plates 2, 4 and the frequency of the head are coordinated so that there is a vibration length of 30 mm.
  • the glue thread 14 is thus deposited in a zig-zag pattern that extends between the outer lower sides 16 and 18 of the HDF plates 2, 4 at an angle ⁇ of about 55 ° to the lower sides.
  • the glue thread 14 deposited from the head is pressed onto the side edges 6, 8 of the HDF plates 2, 4 by subsequently arranged pressure rollers, so that a firm connection is produced.
  • a cooling roller For accelerated strength development is followed by the pressure roller, a cooling roller.
  • glue threads can be processed with appropriate use of multiple heads, heaters and rollers.
  • two heated glue threads from two heads can be deposited in an oppositely directed zig-zag pattern on the side edges of the plates to be joined, pressed by pressure rollers and accelerated by chill rolls.
  • a prefabricated scrim or tissue of glue threads can be stored on the side edges of the plates to be joined.
  • the production of a folding connection by applying a glue thread can be incorporated in numerous methods for producing folding plates. For example, it is proposed to place two fibreboards with the visible sides on each other, first the edges of two adjacent side edges of the two plates to edit, so to straighten or profile. Then the plates are aligned at these side edges and the adjacent side edges of the opposite side can be straightened or profiled. On the thus prepared adjacent side edges can now be applied either on one side of the fiberboard of the glue thread. Alternatively, glue threads may be applied to both adjacent pairs of side edges. In the latter case, a separating cut is then required to provide two foldable plates.
  • a third proposal it is possible to lay an even number of plates (more than two) on each other, to align and to create a straight surface of adjacent side edges.
  • the alignment is usually done by straightening or profiling a first side edge and adjusting the plates at that side edge. Then a second side edge is straightened or profiled and it is applied the glue thread. It is important to ensure that a glue thread in each case overlaps at least two adjacent side edges and connects.
  • the glue thread can also connect a larger, even number of plates together.
  • the glue thread can be separated during the dissolution of the plate stack so that in each case two adjoining plates are connected by a glue thread. If the separation is to be avoided, readily applicator devices can be aligned so that z. B. juxtaposed heads connect the individual pairs of plates together.

Abstract

The panel has a pair of foldable connected plates (2, 4) made of timber material and a pair of adjacent side surfaces (6, 8) comprising a set of glue fibers (14) connected partial-laminarly with the side surfaces. The glue fibers are arranged continuously and are connected to a fabric. The glue fibers comprise a set of filaments that is coated by an adhesive. The adhesive is a hot melt based on polyamide or hardenable polyurethane. The filaments are interwoven and are arranged parallel to each other. Independent claims are also included for the following: (1) a method for manufacturing a foldable panel (2) a device for applying glue fibers on side edges of timber material-plate parts.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer faltbaren Platte, eine Vorrichtung hierzu und eine faltbare Platte.The invention relates to a method for producing a foldable plate, a device for this and a foldable plate.

Faltbare Platten im Sinne dieser Erfindung sind insbesondere dünne Holzwerkstoffplatten, die als Rückwände für Möbel (Schränke, Regale) eingesetzt werden. In der Regel werden 2 mm bis 6 mm starke Span- oder Faserplatten eingesetzt. Die Oberseite der Platten ist häufig veredelt, z. B. lackiert. Diese Seite soll nicht beschädigt werden. Die Seitenkanten aneinander angrenzender Plattenteile sind faltbar miteinander verbunden. Entweder wird Klebstoff nach Art eines Scharniers eingesetzt, wie z. B. in der DE 198 04 787 vorgeschlagen. Alternativ werden Bänder auf die Seitenkanten aufgebracht, die sich ggf. noch bis auf die Unterseite der Platte erstrecken, wie z. B. in der DE 29 15 787 , der EP 1532 895 oder der DE 103 22 218 vorgeschlagen.Foldable plates in the context of this invention are in particular thin wood-based panels, which are used as rear walls for furniture (cabinets, shelves). As a rule, 2 mm to 6 mm thick chipboard or fiber boards are used. The top of the plates is often refined, z. B. painted. This page should not be damaged. The side edges of adjacent plate parts are foldably interconnected. Either adhesive is used in the manner of a hinge, such as. B. in the DE 198 04 787 proposed. Alternatively, bands are applied to the side edges, which may even extend to the bottom of the plate, such as. B. in the DE 29 15 787 , of the EP 1532 895 or the DE 103 22 218 proposed.

Sämtliche bekannten Ausführungen setzen zur Herstellung der faltbaren Verbindung viel Material ein. Durchgänger Klebstoffauftrag oder das Aufkleben von Bändern ist eine teure Lösung.All known designs use a lot of material for the production of the foldable connection. Going through adhesive application or sticking tapes is an expensive solution.

Der Erfindung liegt die Aufgabe zu Grunde, eine Faltplatte bereitzustellen, die mit weniger Klebstoff eine sichere Verbindung der Plattenteile und eine Vielzahl von Faltungen ermöglicht. Dazu wird eine einfache Vorrichtung vorgeschlagen, mit der sich ein kontinuierliches Verfahren zur Herstellung der Faltplatten realisieren lässt.The invention is based on the object to provide a folding plate, which allows a secure connection of the plate parts and a plurality of folds with less adhesive. For this purpose, a simple device is proposed with which a continuous process for producing the folding plates can be realized.

Diese Aufgabe wird gelöst mit einer Faltplatte nach Anspruch 1, mit einem Verfahren nach Anspruch 15 und mit einer Vorrichtung nach Anspruch 23.This object is achieved with a folding plate according to claim 1, with a method according to claim 15 and with a device according to claim 23.

Die erfindungsgemäße faltbare Platte besteht aus wenigstens zwei faltbar verbundenen Platten aus Holzwerkstoff, dadurch gekennzeichnet, dass zwei angrenzende Seitenflächen wenigstens einen mit den Seitenflächen wenigstens teilflächig verbundenen Leimfaden aufweisen. Die Seitenflächen sind also nicht wie aus dem Stand der Technik bekannt, vollflächig abgedeckt, sondern nur teilweise. Da jedoch der Leimfaden, wie nachstehend erläutert wird, besondere Festigkeitseigenschaften aufweist, wird eine besonders sichere Verbindung der Platten vorgeschlagen.The foldable plate according to the invention consists of at least two foldable connected panels of wood material, characterized in that two adjacent side surfaces have at least one at least partially connected to the side surfaces glue thread. The side surfaces are therefore not known from the prior art, covered over the entire surface, but only partially. However, since the size of the glue thread, as explained below, has particular strength properties, a particularly secure connection of the plates is proposed.

Nach einer bevorzugten Ausführung ist der wenigstens eine Leimfaden kontinuierlich angeordnet über die beiden Seitenflächen der zu verbindenden Platten angeordnet. Alternativ kann es sich als vorteilhaft erweisen, dass der wenigstens eine Leimfaden diskontinuierlich angeordnet ist. Welche dieser Ausführungen gewählt wird, kann in Abstimmung auf die jeweiligen Platten bzw. deren Belastung bestimmt werden.According to a preferred embodiment, the at least one glue thread is arranged continuously arranged over the two side surfaces of the plates to be joined. Alternatively, it may prove advantageous that the at least one size thread is arranged discontinuously. Which of these versions is selected, can be determined in accordance with the respective plates or their load.

Es erweist sich als vorteilhaft, dass der Leimfaden z. B. je nach dem Anforderungsprofil der herzustellenden faltbaren Platte gewählt werden kann. Beispielsweise kann der wenigstens eine Leimfaden wenigstens teilweise überlappend angeordnet sein.It proves to be advantageous that the glue thread z. B. can be selected depending on the requirement profile of the produced foldable plate. For example, the at least one glue thread may be arranged at least partially overlapping.

Der Leimfaden besteht aus einer Vielzahl von Filamenten, z. B. aus Monofilamenten oder aus Multifilamenten und ist wenigstens teilweise von einem Klebstoff umhüllt. Die Filamente des Leimfadens können auf verschiedenste Weise angeordnet sein, z. B. weitgehend parallel zueinander, einander kreuzend angeordnet, sie können auch miteinander verwoben sein.The glue thread consists of a variety of filaments, z. B. of monofilaments or multifilaments and is at least partially enveloped by an adhesive. The filaments of the glue thread can be arranged in various ways, for. B. largely parallel to each other, arranged crossing each other, they can also be interwoven.

Bekannt ist ein Verfahren zum Herstellen einer faltbaren Platte, bei dem mindestens zwei Plattenteile aus Holzwerkstoff mit Oberseite, Unterseite und Seitenkanten an zwei aneinander angrenzenden Seitenkanten verbunden werden. Erfindungsgemäß werden die mindestens zwei Plattenteile durch mindestens einen Leimfaden verbunden. Das Verbinden der Plattenteile durch einen Leimfaden spart erhebliche Materialmengen an Klebstoff und damit Kosten. Gleichzeitig ist als Vorteil der Erfindung hervorzuheben, dass der Leimfaden außerordentlich schnell aufzubringen ist, so dass die Produktionsgeschwindigkeit auf mehr als 25 m/min gesteigert werden kann. Typischweise liegt sie zwischen 25 m/min und 40 m/min. Auch dieser Aspekt trägt zur Wirtschaftlichkeit des erfindungsgemäßen Verfahrens erheblich bei.What is known is a method for producing a foldable plate, in which at least two pieces of wood material are joined to the top, bottom and side edges at two adjacent side edges. According to the invention, the at least two plate parts are connected by at least one glue thread. The bonding of the plate parts by a glue thread saves considerable amounts of material to adhesive and thus costs. At the same time it should be emphasized as an advantage of the invention that the glue thread is extremely fast to apply, so that the production speed can be increased to more than 25 m / min. Typically, it is between 25 m / min and 40 m / min. This aspect also contributes significantly to the economy of the method according to the invention.

Der Leimfaden, der erfindungsgemäß zum Verbinden von Plattenteilen eingesetzt wird, besteht in der Regel aus zahlreichen Monofilamenten oder Multifilamenten, die mindestens abschnittweise mit Klebstoff umhüllt werden. Typische Fasern sind z. B. Glasseidenfasern oder Polyamidfasern. Durch den innenliegenden Faden bzw. die Filamente weist der Leimfaden eine hohe Zugfestigkeit in Längsrichtung des Fadens auf. Er lässt sich daher gut bei hohen Produktionsgeschwindigkeiten verarbeiten.The glue thread, which is used according to the invention for joining plate parts, usually consists of numerous monofilaments or multifilaments, which are at least partially wrapped with adhesive. Typical fibers are z. B. glass fiber or polyamide fibers. Due to the internal thread or the filaments, the glue thread has a high tensile strength in the longitudinal direction of the thread. It can therefore be processed well at high production speeds.

Bevorzugt wird als Klebstoff für die Leimfäden ein Hotmelt-Klebstoff eingesetzt. Hotmelt-Klebstoffe lassen sich meist einfach verarbeiten. Besonders bevorzugt ist die Verwendung von z. B. Polyamid-Klebstoffen oder auch von nachvernetzenden Polyurethan-Klebstoff. Nachvernetzender PU-Klebstoff muss zwar unter Schutzgasatmosphäre gelagert und verarbeitet werden, geht aber bei einer Nachvernetzung-Reaktion nach der Applikation echte chemische Bindungen mit den Holzfasern ein. Dies führt zu einer qualitativ hochwertigen Verklebung.Preferably, a hotmelt adhesive is used as adhesive for the glue threads. Hotmelt adhesives are usually easy to process. Particularly preferred is the use of z. As polyamide adhesives or postcrosslinking polyurethane adhesive. Although the post-crosslinking PU adhesive must be stored and processed under a protective gas atmosphere, it undergoes a genuine chemical bond with the wood fibers in a post-crosslinking reaction after application. This leads to a high quality bond.

Leimfäden, die zum Verbinden von Plattenteilen zu einer faltbaren Platte eingesetzt werden, werden als Endlosfäden hergestellt, die beim Verbinden der Plattenteile ein kontinuierliches Arbeiten erlauben. Sie können in maßgeschneiderten Abmessungen eingesetzt werden. Üblich sind fertige Leimfäden mit einer Stärke von 50 bis 250 µm und einer Breite von 1 bis 10 mm zum Verbinden der Plattenteile. Es hat sich als vorteilhaft erwiesen, den Leimfaden so auszuwählen, dass seine Breite mindestens der Breite einer Platte entspricht, die zu einer Faltplatte verarbeitet werden soll. Bei einer Faltplatte aus zwei 4 mm HDF-Platten ist der Leimfaden also bevorzugt 4mm breit oder ggf. breiter.Glue threads used to join panel members to a foldable panel are manufactured as continuous strands that allow continuous work when joining panel members. They can be used in customized dimensions. Common are finished glue threads with a thickness of 50 to 250 microns and a width of 1 to 10 mm for connecting the plate parts. It has proved to be advantageous to select the glue thread so that its width at least equal to the width of a plate to be processed into a folding plate. In a folding plate of two 4 mm HDF boards, the glue thread is therefore preferably 4 mm wide or possibly wider.

Leimfäden können so über die aneinandergrenzenden Seitenkanten der zu verbindenden Plattenteile geführt werden, dass eine zuverlässige und belastbare faltbare Platte entsteht. Alternativ können mehrere Leimfäden auf den Seitenkanten der Plattenteile abgelegt werden, beispielsweise können zwei einander kreuzende Leimfäden z. B. in gegenläufigen Zick-Zack- oder Wellenmustern aufgebracht werden. Leimfäden können auch zu einem Gelege oder Gewebe verbunden werden. Dieses Gelege oder Gewebe kann dann in linearer Bewegung auf den zu verbindenden Seitenkanten angebracht werden.Glue threads can be guided over the adjacent side edges of the plate parts to be joined so that a reliable and resilient foldable plate is formed. Alternatively, several glue threads can be placed on the side edges of the plate parts, for example, two crossed glue threads z. B. be applied in opposing zig-zag or wave patterns. Glue threads can also be connected to a scrim or tissue. This scrim or fabric can then be placed in linear motion on the side edges to be joined.

Ein Gelege oder Gewebe kann vorteilhaft aus unterschiedlichen Leimfäden zusammengesetzt werden. Je nach Richtung oder Position der einzelnen Leimfäden in dem Gelege oder Gewebe kann z. B. ein besonders zugfester Faden oder ein besonders hoher Klebstoffauftrag gewählt werden, um ein Optimum zwischen der Festigkeit der Verbindung und den Kosten für den Leimfaden herzustellen.A scrim or tissue may advantageously be composed of different glue strands become. Depending on the direction or position of the individual glue threads in the scrim or tissue z. As a particularly tensile thread or a particularly high adhesive application can be selected to produce an optimum between the strength of the compound and the cost of the glue line.

Erfindungsgemäß wird der mindestens eine Leimfaden über die aneinandergrenzenden Seitenkanten der zu verbindenden Plattenteile geführt und auf die Seitenkanten aufgebracht. Dabei kann der Leimfaden abwechselnd auf den zu verbindenden, aneinander angrenzenden Seitenkanten abgelegt werden, beispielsweise in einem Zick-Zack-Muster oder in wellenförmigem Muster. Bevorzugt wird, dass der mindestens eine Leimfaden in einem Winkel bezogen auf die parallel zueinander angeordneten Oberseiten und Unterseiten der Plattenteile angeordnet ist, vorteilhaft in einem Winkel α zwischen 10° und 85° bezogen auf die Oberseite der Plattenteile.According to the invention, the at least one glue thread is guided over the adjoining side edges of the plate parts to be joined and applied to the side edges. In this case, the glue thread can be alternately deposited on the adjoining side edges, for example in a zig-zag pattern or in a wavy pattern. It is preferred that the at least one glue thread is arranged at an angle relative to the mutually parallel upper sides and lower sides of the plate parts, advantageously at an angle α between 10 ° and 85 ° relative to the upper side of the plate parts.

Insbesondere beim Einsatz thermoplastischer Klebstoffe wird bevorzugt, dass der Leimfaden beim Auftreffen auf die Seitenkanten erwärmt ist. Das Aufwärmen kann auf beliebige Weise erfolgen. Das Aufwärmen kann also z. B. mit sparsamem Energieeinsatz erfolgen und es wird eine intensive Bindung an den Holzwerkstoff hergestellt. Auch das Aufwalzen oder Aufdrücken des Leimfaden auf die Seitenkanten führt gemäß einer vorteilhaften Ausführung der Erfindung zu einer intensiven und festen Bindung an den Holzwerkstoff. Schließlich trägt das Abkühlen des Leimfadens nach dem Aufbringen auf die Seitenkanten nach einer besonderen Ausführung des Verfahrens dazu bei, dass bereits kurz nach dem Aufbringen des Leimfadens die Verbindung zwischen den Plattenteilen eine hohe Festigkeit aufweist.In particular, when using thermoplastic adhesives is preferred that the glue thread is heated when hitting the side edges. The warm-up can be done in any way. The warm-up can thus z. B. done with economical use of energy and it is an intensive bond to the wood material produced. Also, the rolling or pressing the glue thread on the side edges leads according to an advantageous embodiment of the invention to an intense and firm bond to the wood material. Finally, the cooling of the glue thread after application to the side edges according to a particular embodiment of the method contributes to the fact that the connection between the plate parts already has a high strength shortly after application of the glue thread.

Die Erfindung umfasst weiter eine Vorrichtung zum Aufbringen eines Leimfadens auf die aneinander angrenzenden Seitenkanten von Holzwerkstoff-Plattenteilen mit

  • mindestens einem Vorrat für einen Leimfaden
  • Mitteln zum Vorerwärmen des Leimfadens
  • mindestens einem Kopf zum Führen des Leimfadens
  • Mitteln zum Aufbringen des Leimfadens auf die aneinander angrenzenden Seitenkanten von Holzwerkstoff-Plattenteilen. Diese Vorrichtung ist einfach und gut an die Bedingungen eines kontinuierlichen Produktionsverfahrens angepasst. Sie kann bei hohen Produktionsgeschwindigkeiten von z. B. 25 m/min bis 40 m/min zuverlässig eingesetzt werden.
The invention further comprises a device for applying a glue thread to the adjoining side edges of wood-based panel parts
  • at least one supply of a glue thread
  • Means for preheating the glue thread
  • at least one head for guiding the glue thread
  • Means for applying the glue thread on the adjacent side edges of wood-based panel parts. This device is simple and well adapted to the conditions of a continuous production process. She can at high production speeds of z. B. 25 m / min to 40 m / min reliably.

Die Vorrichtung weist mindestens einen Vorrat an Leimfaden auf, der dann auf die zu verbindenden Seitenkanten der Holzwerkstoff-Plattenteile aufgebracht werden kann. Der Vorrat kann verschieden ausgestaltet sein, bevorzugt ist er derart ausgelegt, dass der Leimfaden durch Abrollen entnommen wird. Sollen mehrere Leimfäden verarbeitet werden, können mehrere Vorräte parallel angeordnet werden. Der Kopf kann einen oder mehrere Leimfäden führen. Falls mehrere Leimfäden verarbeitet werden sollen, können auch mehrere Kopf zum Führen der Leimfäden vorgesehen sein. Die Mittel zum Vorerwärmen des Leimfadens können vor oder nach dem Kopf zum Führen des Leimfadens angeordnet sein, je nach Art des Leimfadens. Die Mittel zum Aufbringen des Leimfadens auf die aneinander angrenzenden Seitenkanten sind in der Regel als Walzen ausgebildet, die den Leimfaden, der auf den Seitenkanten abgelegt wurde, dort andrücken.The device has at least one supply of glue thread, which can then be applied to the side edges of the wood material board parts to be joined. The stock can be designed differently, preferably it is designed such that the glue thread is removed by unrolling. If several glue threads are to be processed, several stocks can be arranged in parallel. The head can carry one or more glue threads. If several glue threads are to be processed, several heads may also be provided for guiding the glue threads. The means for preheating the glue thread may be arranged before or after the head for guiding the glue thread, depending on the type of glue thread. The means for applying the glue thread on the adjacent side edges are usually formed as rollers which press the glue thread that has been deposited on the side edges there.

Die erfindungsgemäße Vorrichtung kann stationär oder verfahrbar sein. Der Leimfaden kann also auf bewegliche oder stationäre Holzwerkstoffplatten aufgebracht werden. Bevorzugt wirkt die Vorrichtung zum Aufbringen eines Leimfadens im Betrieb mit einer Vorschub-Einrichtung für die zu verbindenden Plattenteile zusammen. Auf diese Weise können die angestrebten Produktionsgeschwindigkeiten erreicht werden.The device according to the invention can be stationary or movable. The glue thread can therefore be applied to movable or stationary wood-based panels. Preferably, the device for applying a glue thread in operation cooperates with a feed device for the plate parts to be joined. In this way, the desired production speeds can be achieved.

Insbesondere dann, wenn Monofilamente verarbeitet werden, ist der Kopf zum Führen des Leimfadens beweglich ausgelegt. Er fährt abwechselnd über die Seitenkanten der zu verbindenden Plattenteile und legt den Leimfaden abwechselnd auf diesen Seitenkanten ab. Auf diese Weise wird eine faltbare Verbindung der Plattenteile hergestellt, sobald der Leimfaden auf den Plattenteilen fixiert ist. Der Kopf ist bei dieser Ausführung bevorzugt mit einer Amplitude ausgelegt, die nicht größer ist als die Stärke der zu verbindenden Seitenkanten. Damit wird sichergestellt, dass der Leimfaden tatsächlich immer nur auf den Seitenkanten der Plattenteile abgelegt wird. Entsprechend einer Plattenstärke von 2 mm bis 6 mm für jedes zu verbindende Plattenteil beträgt die Amplitude des Kopfes damit in der Regel zwischen 3,5 und 12 mm. Eine mit beweglichem Kopf versehene Vorrichtung ist dann in der Relativbewegung zu den zu verbindenden Plattenteilen derart abgestimmt, dass der Kopf (bzw. der vom Kopf abgelegte Leimfaden) eine Schwingungslänge von bis zu 30 mm, bevorzugt von bis zu 40 mm, besonders bevorzugt von bis zu 50 mm aufweist.In particular, when monofilaments are processed, the head is designed to guide the glue thread movable. He moves alternately on the side edges of the plate parts to be joined and places the glue thread alternately on these side edges. In this way, a foldable connection of the plate parts is made as soon as the glue thread is fixed on the plate parts. The head is preferably designed in this embodiment with an amplitude which is not greater than the strength of the side edges to be joined. This ensures that the glue thread is actually always placed only on the side edges of the plate parts. According to a plate thickness of 2 mm to 6 mm for each plate part to be connected, the amplitude of the head is thus usually between 3.5 and 12 mm. A device provided with a moving head is then adjusted in relative movement to the plate parts to be joined in such a way that the head (or the glue thread deposited by the head) has a vibration length of up to 30 mm, preferably of up to 40 mm, more preferably of up to 50 mm.

Details der Erfindung werden nachfolgend an einem Ausführungsbeispiel näher erläutert. Es zeigen:

  • Fig. 1 eine schematische Darstellung der erfindungsgemäßen Platte
  • Fig. 2 einen vergrößerten Ausschnitt aus Fig. 1
Details of the invention are explained in more detail below using an exemplary embodiment. Show it:
  • Fig. 1 a schematic representation of the plate according to the invention
  • Fig. 2 an enlarged section Fig. 1

Die Fig. 1 zeigt einen Ausschnitt einer Faltplatte, die aus zwei HDF-Platten 2, 4 besteht, die mittels eines Leimfadens 14 faltbar miteinander verbunden sind.The Fig. 1 shows a section of a folding plate, which consists of two HDF plates 2, 4, which are connected to each other by means of a glue thread 14 foldable.

Die HDF-Platten 2, 4 weisen eine Dicke von 3 mm und eine lackierte Oberfläche 10, 12 auf. Die HDF-Platten 2, 4 liegen bündig aufeinander, so dass die Seitenkanten 6, 8 in einer Ebene angeordnet und die lackierten Oberseiten 10, 12 einander zugewandt sind. Die Seitenkanten 6, 8 sind begradigt ausgeführt, weisen jedoch keine weitere Profilierung auf.The HDF plates 2, 4 have a thickness of 3 mm and a painted surface 10, 12. The HDF plates 2, 4 are flush with each other, so that the side edges 6, 8 arranged in a plane and the painted top sides 10, 12 facing each other. The side edges 6, 8 are executed straightened, but have no further profiling.

Der Leimfaden 14 besteht aus einer Vielzahl im Wesentlichen parallel zueinander angeordneter feiner Einzelfäden oder Filamente, die mittels eines zunächst flüssigen und anschließend abgekühlten Hotmelt-Kleber zueinander fixiert werden. Die Einzelfäden bestehen aus Polyamid, könnten aber auch aus Glasseide oder Polyester oder einem Material mit vergleichbaren Eigenschaften ausgeführt sein. Der Leimfaden 14 weist eine Dicke von 0,1 mm und eine Breite von 3 mm auf. Der Leimfaden 14 ist als Endlosfaden ausgeführt. Die Aufschmelztemperatur des Hotmelt-Klebers des Leimfadens 14 beträgt 160 °C, wobei üblicherweise je nach verwendeter Zusammensetzung des Hotmelt-Klebers ein Temperaturfenster, beispielsweise von 95 °C bis 180 °C einstellbar ist. Erfindungsgemäß sind handelübliche Leimfäden verwendbar. Der Leimfaden 14 ist beide Seitenkanten 6, 8 in einem Zick-Zack-Muster bedeckend angeordnet und unter Einwirkung von Temperatur und Druck mit den Seitenkanten 6, 8 der HDF-Platten 2,4 verbunden. Die Verbindungsstelle lässt ein mehrfaches Falten der HDF-Platten 2,4 zu.The glue thread 14 consists of a plurality of substantially parallel to each other arranged fine individual filaments or filaments, which are fixed to each other by means of a first liquid and then cooled hot melt adhesive. The monofilaments are made of polyamide, but could also be made of glass silk or polyester or a material with comparable properties. The glue thread 14 has a thickness of 0.1 mm and a width of 3 mm. The glue thread 14 is designed as a continuous thread. The melting temperature of the hotmelt adhesive of the glue thread 14 is 160 ° C, wherein usually depending on the composition of the hotmelt adhesive used, a temperature window, for example, from 95 ° C to 180 ° C is adjustable. Commercially available glue threads can be used according to the invention. The glue thread 14 is arranged covering both side edges 6, 8 in a zig-zag pattern and connected to the side edges 6, 8 of the HDF plates 2,4 under the action of temperature and pressure. The joint allows for multiple folding of HDF plates 2,4.

Der Leimfaden 14 oder die Leimfäden werden wie nachfolgend beschrieben auf die Seitenkanten 6, 8 der HDF-Platten 2,4 aufgebracht: Die HDF-Platten 2,4 werden an einer nicht dargestellten Vorrichtung zum Aufbringen des Leimfadens 14 vorbeigeführt. Die Vorrichtung ist so angeordnet, dass die HDF-Platten 2,4 waagerecht liegen, so dass der Leimfaden 14 auf die senkrecht ausgerichteten Seitenkanten 6, 8 aufgebracht wird. Die HDF-Platten 2, 4 sind während des Aufbringens des Leimfadens 14 gegen Verschieben gesichert, beispielsweise mittels Walzen, die die HDF-Platten 2, 4 gegeneinander pressen. Alternativ oder ergänzend können Führungsleisten eingesetzt werden, die vor und hinter den HDF-Platten angeordnet sind, und so ebenfalls als fixierende Anschläge wirken.The glue thread 14 or the glue threads are applied to the side edges 6, 8 of the HDF plates 2, 4 as described below: The HDF plates 2, 4 are guided past a device, not shown, for applying the glue thread 14. The device is arranged so that the HDF plates 2,4 are horizontal, so that the glue thread 14 is applied to the vertically oriented side edges 6, 8. The HDF plates 2, 4 are secured during the application of the glue thread 14 against displacement, for example by means of rollers which press the HDF plates 2, 4 against each other. Alternatively or additionally, guide strips can be used, which are arranged in front of and behind the HDF plates, and thus also act as fixing stops.

Der Leimfaden 14 wird auf eine Rolle gewickelt bereitgestellt und bei der Herstellung einer Faltplatte als Endlos-Faden verarbeitet. Der Leimfaden 14 wird von der Rolle abgenommen, von einem Kopf im erwärmten Zustand im Zick-Zack-Muster alternierend über die Seitenkanten 6, 8 der zu verbindenden HDF-Platten 2, 4 abgelegt. Der Kopf zum Führen des Leimfadens 14 ist dazu beweglich angeordnet. Der Leimfaden 14 wird dabei jeweils mit einer Amplitude von 6 mm abgelegt. Die Vorschubgeschwindigkeit der HDF-Platten 2, 4 und die Frequenz der Kopf sind so aufeinander abgestimmt, dass sich eine Schwingungslänge von 30 mm ergibt. Der Leimfaden 14 wird also in einem Zick-Zack-Muster abgelegt, dass sich zwischen den außen liegenden Unterseiten 16 und 18 der HDF-Platten 2, 4 in einem Winkel α von ca. 55° zu den Unterseiten erstreckt. Der von dem Kopf abgelegte Leimfaden 14 wird durch nachfolgend angeordnete Andruck-Walzen auf die Seitenkanten 6, 8 der HDF-Platten 2, 4 gedrückt, so dass eine feste Verbindung entsteht. Zur beschleunigten Festigkeitsentwicklung folgt auf die Andruckwalze eine Kühlwalze.The glue thread 14 is provided wound on a roll and processed in the manufacture of a folding plate as an endless thread. The glue thread 14 is removed from the roll, alternately deposited from a head in the heated state in a zig-zag pattern over the side edges 6, 8 of the HDF plates 2, 4 to be joined. The head for guiding the glue thread 14 is arranged to be movable. The glue thread 14 is deposited in each case with an amplitude of 6 mm. The feed rate of the HDF plates 2, 4 and the frequency of the head are coordinated so that there is a vibration length of 30 mm. The glue thread 14 is thus deposited in a zig-zag pattern that extends between the outer lower sides 16 and 18 of the HDF plates 2, 4 at an angle α of about 55 ° to the lower sides. The glue thread 14 deposited from the head is pressed onto the side edges 6, 8 of the HDF plates 2, 4 by subsequently arranged pressure rollers, so that a firm connection is produced. For accelerated strength development is followed by the pressure roller, a cooling roller.

Anstelle nur eines Leimfadens können auch mehrere Leimfäden unter entsprechender Verwendung mehrerer Köpfe, Erwärmeinrichtungen und Walzen verarbeitet werden. Beispielsweise können zwei erwärmte Leimfäden von zwei Köpfen in einem entgegengesetzt ausgerichteten Zick-Zack-Muster auf den Seitenkanten der zu verbindenden Platten abgelegt, durch Andruck-Walzen angedrückt und durch Kühlwalzen beschleunigt verfestigt werden. Auch ein vorgefertigtes Gelege oder Gewebe von Leimfäden kann auf den Seitenkanten der zu verbindenden Platten abgelegt werden. Durch Andrücken und ggf. Abkühlen kann so eine vielfach faltbare Platte mit einer stabilen Verbindung hergestellt werden.Instead of only one glue thread and several glue threads can be processed with appropriate use of multiple heads, heaters and rollers. For example, two heated glue threads from two heads can be deposited in an oppositely directed zig-zag pattern on the side edges of the plates to be joined, pressed by pressure rollers and accelerated by chill rolls. Also, a prefabricated scrim or tissue of glue threads can be stored on the side edges of the plates to be joined. By pressing on and possibly cooling it is thus possible to produce a multiply foldable plate with a stable connection.

Das Herstellen einer Falt-Verbindung durch Aufbringen eines Leimfadens lässt sich in zahlreiche Verfahren zum Herstellen von Faltplatten einbinden. Beispielsweise wird vorgeschlagen, zwei Faserplatten mit den Sichtseiten aufeinander zu legen, zunächst die Kanten von zwei aneinander angrenzender Seitenkanten der beiden Platten zu bearbeiten, also zu begradigen oder zu profilieren. Dann werden die Platten an diesen Seitenkanten ausgerichtet und es können die aneinander angrenzenden Seitenkanten der gegenüberliegenden Seite begradigt oder profiliert werden. Auf die so hergerichteten aneinandergrenzenden Seitenkanten kann nun entweder an einer Seite der Faserplatten der Leimfaden aufgebracht werden. Alternativ können auf beiden aneinandergrenzenden Paaren der Seitenkanten Leimfäden aufgebracht werden. Im letzteren Fall ist dann ein Trennschnitt erforderlich, um zwei faltbare Platten bereitzustellen.The production of a folding connection by applying a glue thread can be incorporated in numerous methods for producing folding plates. For example, it is proposed to place two fibreboards with the visible sides on each other, first the edges of two adjacent side edges of the two plates to edit, so to straighten or profile. Then the plates are aligned at these side edges and the adjacent side edges of the opposite side can be straightened or profiled. On the thus prepared adjacent side edges can now be applied either on one side of the fiberboard of the glue thread. Alternatively, glue threads may be applied to both adjacent pairs of side edges. In the latter case, a separating cut is then required to provide two foldable plates.

Alternativ ist es möglich, Span- oder Faserplatten aufeinander zu legen, ein Paar aneinandergrenzender Seitenkanten zu begradigen, die aufeinander liegenden Platten an diesen Seitenkanten auszurichten, um dann das gegenüberliegende Paar von aneinandergrenzenden Seitenkanten zu begradigen oder zu profilieren. Auf dieses zuletzt bearbeitete Paar von Seitenkanten wird dann der Leimfaden aufgetragen. Nach dem Auftragen und Verfestigen des Leimfadens auf den Platten ist die faltbare Platte fertig.Alternatively, it is possible to lay chipboard or fiberboard together, to straighten a pair of adjacent side edges, to align the overlapping panels with these side edges, and then to straighten or profile the opposing pair of contiguous side edges. The glue thread is then applied to this last processed pair of side edges. After applying and consolidating the glue thread on the plates, the foldable plate is ready.

Nach einem dritten Vorschlag ist es möglich, eine gerade Anzahl von Platten (mehr als zwei) aufeinander zu legen, auszurichten und eine gerade Fläche von aneinander angrenzenden Seitenkanten zu schaffen. Das Ausrichten erfolgt in der Regel durch das Begradigen oder Profilieren einer ersten Seitenkante und das Justieren der Platten an dieser Seitenkante. Anschließend wird eine zweite Seitenkante begradigt oder profiliert und es wird der Leimfaden aufgetragen. Dabei ist darauf zu achten, dass ein Leimfaden jeweils mindestens zwei aneinander angrenzende Seitenkanten übergreift und verbindet. Der Leimfaden kann auch eine größere, gradzahlige Anzahl von Platten miteinander verbinden. Dann kann zur Herstellung von Faltplatten der Leimfaden beim Auflösen des Plattenstapels so getrennt werden, dass jeweils zwei aneinander angrenzende Platten durch einen Leimfaden verbunden sind. Soll das Auftrennen vermieden werden, können ohne weiteres Auftragsvorrichtungen so ausgerichtet werden, dass z. B. nebeneinander angeordnete Köpfe die einzelnen Paare von Platten miteinander verbinden.According to a third proposal, it is possible to lay an even number of plates (more than two) on each other, to align and to create a straight surface of adjacent side edges. The alignment is usually done by straightening or profiling a first side edge and adjusting the plates at that side edge. Then a second side edge is straightened or profiled and it is applied the glue thread. It is important to ensure that a glue thread in each case overlaps at least two adjacent side edges and connects. The glue thread can also connect a larger, even number of plates together. Then, for the production of folding plates, the glue thread can be separated during the dissolution of the plate stack so that in each case two adjoining plates are connected by a glue thread. If the separation is to be avoided, readily applicator devices can be aligned so that z. B. juxtaposed heads connect the individual pairs of plates together.

Claims (27)

Faltbare Platte, bestehend aus wenigstens zwei faltbar verbundenen Platten (2, 4) aus Holzwerkstoff, dadurch gekennzeichnet, dass zwei angrenzende Seitenflächen (6, 8) wenigstens einen mit den Seitenflächen wenigstens teilflächig verbundenen Leimfaden (14) aufweisen.Foldable plate, comprising at least two foldably connected plates (2, 4) of wood material, characterized in that two adjacent side surfaces (6, 8) have at least one at least partially connected to the side surfaces of the glue thread (14). Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der wenigstens eine Leimfaden (14) kontinuierlich angeordnet ist.Foldable plate according to claim 1, characterized in that the at least one glue thread (14) is arranged continuously. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der wenigstens eine Leimfaden (14) diskontinuierlich angeordnet ist.Foldable plate according to claim 1, characterized in that the at least one glue thread (14) is arranged discontinuously. Faltbare Platte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der wenigstens eine Leimfaden (14) wenigstens teilweise überlappend angeordnet ist.Foldable plate according to one of the preceding claims, characterized in that the at least one glue thread (14) is arranged at least partially overlapping. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens zwei Leimfäden (14) zu einem Gewebe verbunden sind.Foldable plate according to claim 1, characterized in that at least two glue threads (14) are connected to a fabric. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der Leimfaden (14) aus einer Vielzahl von Filamenten besteht, die wenigstens teilweise von einem Klebstoff umhüllt sind.Foldable plate according to claim 1, characterized in that the glue thread (14) consists of a plurality of filaments, which are at least partially covered by an adhesive. Faltbare Platte nach Anspruch 6, dadurch gekennzeichnet, dass die Filamente des Leimfadens (14) weitgehend parallel zueinander angeordnet sind.Foldable plate according to claim 6, characterized in that the filaments of the glue thread (14) are arranged substantially parallel to each other. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens einige der Vielzahl der Filamente des Leimfadens (14) einander kreuzend angeordnet sind.Foldable plate according to claim 1, characterized in that at least some of the plurality of filaments of the glue thread (14) are arranged crossing each other. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass die Filamente des Leimfadens (14) miteinander verwoben sind.Foldable plate according to claim 1, characterized in that the filaments of the glue thread (14) are woven together. Faltbare Platte nach Anspruch 1 oder 6, dadurch gekennzeichnet, dass der Klebstoff, der den Faden bzw. die Filamente des Leimfadens (14) umhüllt, ein Hotmelt auf Polyamidbasis oder auf Basis eines nachhärtbaren Polyurethans oder eines Gemisches aus beiden ist.Foldable plate according to claim 1 or 6, characterized in that the adhesive which wraps around the thread or filaments of the glue thread (14) is a polyamide-based hotmelt or based on a post-hardenable polyurethane or a mixture of both. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der Leimfaden (14) eine Dicke von 50 bis 250 µm und eine Breite von 1 bis 10 mm aufweist.Foldable plate according to claim 1, characterized in that the glue thread (14) has a thickness of 50 to 250 μm and a width of 1 to 10 mm. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der Leimfaden (14) als Gelege oder als Gewebe aus wenigstens zwei Leimfäden ausgeführt ist.Foldable plate according to claim 1, characterized in that the glue thread (14) is designed as a scrim or as a fabric of at least two glue threads. Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Leimfaden (14) in einem Winkel (α) bezogen auf die Oberseite (10, 12) und Unterseite (16,18) der Plattenteile (2, 4) angeordnet ist, bevorzugt in einem Winkel α zwischen 10° und 85° bezogen auf die Oberseite (10, 12) der Plattenteile (2, 4).Foldable plate according to claim 1, characterized in that the at least one glue thread (14) is arranged at an angle (α) with respect to the upper side (10, 12) and underside (16, 18) of the plate parts (2, 4) at an angle α between 10 ° and 85 ° with respect to the upper side (10, 12) of the plate parts (2, 4). Faltbare Platte nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Leimfaden (14) wellenförmig auf den aneinander angrenzenden Seitenkanten (6, 8) aufgebracht wird.Foldable plate according to claim 1, characterized in that the at least one glue thread (14) is applied wave-like on the adjoining side edges (6, 8). Verfahren zum Herstellen einer faltbaren Platte, dadurch gekennzeichnet, dass die mindestens zwei Plattenteile (2, 4) durch mindestens einen Leimfaden (14) verbunden werden.Method for producing a foldable plate, characterized in that the at least two plate parts (2, 4) are connected by at least one glue thread (14). Verfahren zum Herstellen einer faltbaren Platte nach Anspruch 15, dadurch gekennzeichnet, dass der Leimfaden (14) über die aneinandergrenzenden Seitenkanten (6, 8) der zu verbindenden Plattenteile (2, 4) geführt wird und auf die Seitenkanten (6, 8) aufgebracht wird.Method of manufacturing a foldable plate according to claim 15, characterized in that the glue thread (14) is guided over the adjoining side edges (6, 8) of the plate parts (2, 4) to be joined and applied to the side edges (6, 8) , Verfahren zum Herstellen einer faltbaren Platte nach Anspruch16, dadurch gekennzeichnet, dass der Leimfaden (14) beim Auftreffen auf die Seitenkanten (6, 8) erwärmt ist.Method of producing a foldable plate according to Claim 16, characterized in that the glue thread (14) is heated when it strikes the side edges (6, 8). Verfahren zum Herstellen einer faltbaren Platte nach Anspruch 16, dadurch gekennzeichnet, dass der Leimfaden (14) auf die Seitenkanten (6, 8) aufgewalzt oder aufgedrückt wird.Method for producing a foldable plate according to claim 16, characterized in that the glue thread (14) is rolled or pressed onto the side edges (6, 8). Verfahren zum Herstellen einer faltbaren Platte nach Anspruch 16, dadurch gekennzeichnet, dass der Leimfaden (14) nach dem Aufbringen auf die Seitenkanten (6, 8) gekühlt wird.Method for producing a foldable plate according to claim 16, characterized in that the glue thread (14) is cooled after application to the side edges (6, 8). Verfahren zum Herstellen einer faltbaren Platte nach Anspruch 15, mit den Schritten - zwei Holzwerkstoffplatten (2, 4) werden mit den Sichtseiten (10, 12) aufeinander gelegt, - zwei aneinander angrenzende Seitenkanten (6, 8) der beiden Platten (2, 4) werden begradigt oder profiliert, - die Platten (2, 4) werden an diesen Seitenkanten (6, 8) ausgerichtet, - es können die aneinander angrenzenden Seitenkanten der gegenüberliegenden Seite der Holzwerkstoffplatten begradigt oder profiliert werden, - auf die so hergerichteten aneinandergrenzenden Seitenkanten (6, 8) wird an einer Seite der Platten 2, 4) ein Leimfaden (14) aufgebracht, alternativ werden auf beiden aneinandergrenzenden Paaren der Seitenkanten Leimfäden aufgebracht. A method of manufacturing a foldable plate according to claim 15, comprising the steps - Two wood-based panels (2, 4) are superimposed with the visible sides (10, 12), two adjoining side edges (6, 8) of the two plates (2, 4) are straightened or profiled, the plates (2, 4) are aligned at these side edges (6, 8), the adjoining side edges of the opposite side of the wood-based panels can be straightened or profiled, - On the thus prepared adjacent side edges (6, 8) on one side of the plates 2, 4) a glue thread (14) is applied, alternatively glue threads are applied to both adjacent pairs of side edges. Verfahren nach Anspruch 20, dadurch gekennzeichnet, dass Trennschnitt durch an zwei gegenüberliegenden Paaren von Seitenkanten mit Leimfäden versehene Platten durchgeführt wird.A method according to claim 20, characterized in that the separating cut is performed by plates provided on two opposite pairs of side edges with glue threads. Verfahren zum Herstellen einer faltbaren Platte nach Anspruch 15, mit den Schritten - zwei Holzwerkstoffplatten (2, 4) werden aufeinander gelegt, - ein Paar aneinandergrenzender Seitenkanten wird begradigt, - die aufeinander liegenden Platten (2, 4) werden an diesen Seitenkanten ausgerichtet, - dann wird das gegenüberliegende Paar von aneinandergrenzenden Seitenkanten (6, 8) begradigt oder profiliert, - auf dieses zuletzt bearbeitete Paar von Seitenkanten (6, 8) wird dann der Leimfaden (14) aufgetragen. Nach dem Auftragen und Verfestigen des Leimfadens (14) auf den Platten (2, 4) ist die faltbare Platte fertig. A method of manufacturing a foldable plate according to claim 15, comprising the steps - two wood-based panels (2, 4) are placed on each other, a pair of adjacent side edges is straightened, - the superimposed plates (2, 4) are aligned at these side edges, - then the opposite pair of adjacent side edges (6, 8) is straightened or profiled, - On this last processed pair of side edges (6, 8) of the glue thread (14) is then applied. After applying and solidifying the glue thread (14) on the plates (2, 4), the foldable plate is ready. Vorrichtung zum Aufbringen eines Leimfadens (14) auf die aneinander angrenzenden Seitenkanten (6, 8) von Holzwerkstoff-Plattenteilen (2, 4) mit einem Vorrat für einen Leimfaden (14), Mitteln zum Vorerwärmen des Leimfadens (14), einem Kopf zum Führen des Leimfadens (14) und mit Mitteln zum Aufbringen des Leimfadens (14) auf die aneinander angrenzenden Seitenkanten (6,8) von Holzwerkstoff-Plattenteilen (2, 4).Apparatus for applying a glue thread (14) to the adjoining side edges (6, 8) of wood material board parts (2, 4) with a supply of a glue thread (14), means for preheating the glue thread (14), a head for guiding glue thread (14) and means for applying the glue thread (14) on the adjacent side edges (6,8) of wood material board parts (2, 4). Vorrichtung nach Anspruch 23, dadurch gekennzeichnet, dass sie im Betrieb mit einer Vorschub-Einrichtung für die zu verbindenden Plattenteile (2, 4) zusammenwirkt.Apparatus according to claim 23, characterized in that it cooperates in operation with a feed device for the plate parts to be connected (2, 4). Vorrichtung nach Anspruch 23, dadurch gekennzeichnet, dass der Kopf zum Führen des Leimfadens (14) beweglich ist.Apparatus according to claim 23, characterized in that the head for guiding the glue thread (14) is movable. Vorrichtung nach Anspruch 25, dadurch gekennzeichnet, dass der Kopf mit einer Amplitude ausgelegt ist, die nicht größer ist als die Stärke der zu verbindenden Seitenkanten (6, 8).Apparatus according to claim 25, characterized in that the head is designed with an amplitude which is not greater than the strength of the side edges to be connected (6, 8). Vorrichtung nach Anspruch 25, dadurch gekennzeichnet, dass der Kopf auf eine Schwingungslänge von bis zu 30 mm, bevorzugt von bis zu 40 mm, besonders bevorzugt von bis zu 50 mm einstellbar ist.Apparatus according to claim 25, characterized in that the head is adjustable to a vibration length of up to 30 mm, preferably of up to 40 mm, more preferably of up to 50 mm.
EP08013405.9A 2007-07-28 2008-07-25 Method for manufacturing a foldable panel Not-in-force EP2020195B1 (en)

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PL08013405T PL2020195T3 (en) 2007-07-28 2008-07-25 Method for manufacturing a foldable panel

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DE102007035780A DE102007035780B4 (en) 2007-07-28 2007-07-28 Method for producing a foldable plate

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AT14834U1 (en) * 2015-10-06 2016-07-15 Christoph Weiermayer Relaxation book made of wood

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DE102009009995B4 (en) * 2009-02-23 2016-03-31 Perlon Nextrusion Monofil GmbH Wooden lamella carpets and use of monofilaments for their manufacture
DE102012217989B4 (en) 2012-10-02 2014-05-22 Bauhaus-Universität Weimar Laser process for producing a plate foldable in different folding directions
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AT14834U1 (en) * 2015-10-06 2016-07-15 Christoph Weiermayer Relaxation book made of wood

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EP2020195B1 (en) 2014-05-07
DE102007035780B4 (en) 2009-08-13
DE102007035780A1 (en) 2009-01-29
PL2020195T3 (en) 2014-10-31
EP2020195A3 (en) 2010-05-05

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