EP2150384A1 - Method for the detection of process parameters, and wood product - Google Patents

Method for the detection of process parameters, and wood product

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Publication number
EP2150384A1
EP2150384A1 EP08758161A EP08758161A EP2150384A1 EP 2150384 A1 EP2150384 A1 EP 2150384A1 EP 08758161 A EP08758161 A EP 08758161A EP 08758161 A EP08758161 A EP 08758161A EP 2150384 A1 EP2150384 A1 EP 2150384A1
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EP
European Patent Office
Prior art keywords
measuring device
wood
process parameters
product
hot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08758161A
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German (de)
French (fr)
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EP2150384B1 (en
Inventor
Jochen Aderhold
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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Priority to PL08758161T priority Critical patent/PL2150384T3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/029—Feeding; Proportioning; Controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off

Definitions

  • the invention relates to a method for detecting process parameters in the production of wood-based products, in particular wood-based panels, which are hot-pressed with the application of pressure and heat and a wood-based product as such.
  • Wood-based products for example OSB boards, chipboards, MDF or HDF boards, can be produced in different ways.
  • continuous pressing processes with heated press belts may be provided to strip the beaches provided with adhesives, such as glue, glue or resins.
  • adhesives such as glue, glue or resins.
  • Both the short-cycle presses and the so-called Kontipresen compress the chips or fiber cake or the scattered fibers, chips or strands and activate by the heated press plates or press belts, the adhesives, so that the strands, chips or fibers enter into a permanent bond to each other.
  • the production process of such wood-based material products is subject to a multiplicity of parameters, for example the spreading density, moisture of the starting material, gluing factor or uniformity of the scattering behavior or the orientation of the starting materials, so that the knowledge of process parameters, for optimal performance of the hot pressing of wood-based materials for the production of wood-based products, how temperature, pressure and humidity is important within the wood-based products.
  • the data is present in order to intervene regulate.
  • measuring devices into the material to be pressed and to press, wherein these measuring devices are wired and connected to an evaluation unit.
  • These meters are very large and can not be used in the current production process, without interrupting it.
  • these measuring devices must be removed again after pressing the wood-based products, whereby the wood-based products are no longer usable.
  • the removal of the measuring equipment is expensive and usually destroys the wood-based product.
  • the production process for removing the meter must be interrupted.
  • the inventive method for detecting process parameters in the production of wood-based products, especially of wood-based panels, which are hot pressed under application of pressure and heat provides that in the current manufacturing process at least one measuring device for detecting pressure, temperature and / or moisture is introduced into the unpressed starting material and remains in the final product and that the measured process parameters are read out wirelessly.
  • at least one measuring device for detecting pressure, temperature and / or moisture is introduced into the unpressed starting material and remains in the final product and that the measured process parameters are read out wirelessly.
  • the measuring instruments are miniaturized on the basis of the available methods of microelectronics and micromechanics such that they can be left in the product on the one hand without affecting the product quality and on the other hand are available inexpensively in sufficient quantities, so that no removal of the instruments from the finished products for economic reasons is required.
  • the measuring device can store the process parameters so that a change in the process parameters can be tracked over a time course.
  • the measuring device is designed so that the
  • the wood-based product in particular the wood-based panel, which is made of hot-pressed wood materials, provides that a measuring device is incorporated in the wood-based product, wherein the measuring device transmits the process parameters wirelessly to an external readout unit.
  • the measuring device can be designed as a "transducer” or can be equipped with an active, independently transmitting transmitting unit in order to transmit the process parameters or measured data, which were determined during the hot pressing process, to an external readout unit immediate transmission of the data must be made to the evaluation or readout unit.
  • Figure 2 an embedded measuring device during activation
  • Figure 3 - a hot pressing process
  • FIG. 1 shows a first stage of the production of a wood-based product, here a wood-based panel, in which a first layer or layer of glued chips, strands or fibers 2 is sprinkled on a lower press panel 1.
  • the strands, chips or fibers may also be made as a mixture thereof.
  • a measuring device 3 in the form of a miniaturized measuring sensor is placed or interspersed, which is able to determine the relevant process parameters such as pressure, temperature and humidity and, if necessary, to record.
  • the pressure and possibly the moisture within the wood-based product 6 can be detected and read at a later time, so that a state detection and determination of the wood-based product 6 in its use is possible.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention relates to a method for detecting process parameters when making wood products (6), especially wood panels, which are hot-pressed by applying pressure and heat, as well as a wood product (6). In said method, at least one measuring instrument (3) is introduced into the non-pressed starting material (2) during the on-going production process of the wood products (6) in order to detect the pressure, temperature, and/or humidity and remains in the end product (6). The measured process parameters are read in a wireless manner.

Description

Verfahren zur Erfassung von Prozessparametern und Holzwerkstoffprodukt Method for recording process parameters and wood-based product
Die Erfindung betrifft ein Verfahren zur Erfassung von Prozessparametern bei der Herstellung von Holzwerkstoffprodukten, insbesondere Holzwerkstoffplatten, die unter Aufbringung von Druck- und Wärmezufuhr heißverpresst werden und ein Holzwerkstoffprodukt als solches.The invention relates to a method for detecting process parameters in the production of wood-based products, in particular wood-based panels, which are hot-pressed with the application of pressure and heat and a wood-based product as such.
Holzwerkstoffprodukte, beispielsweise OSB-Platten, Spanplatten, MDF- oder HDF-Platten können auf unterschiedliche Arten und Weisen hergestellt werden, neben einer Kurztaktpresse können kontinuierliche Pressverfahren mit beheizten Pressbändern vorgesehen sein, um die mit Adhäsionsmitteln, wie Leim, Klebstoff oder Harzen versehenen Strands, Späne oder Fasern zu Holzwerkstoffprodukten, insbesondere Holzwerkstoffplatten, zu verpressen. Sowohl die Kurztaktpressen als auch die sogenannten Kontipresen verdichten den Späne- oder Faserkuchen bzw. die gestreuten Fasern, Späne oder Strands und aktivieren durch die beheizten Pressplatten oder Pressbänder die Adhäsionsmittel, so dass die Strands, Späne oder Fasern eine dauerhafte Bindung aneinander eingehen.Wood-based products, for example OSB boards, chipboards, MDF or HDF boards, can be produced in different ways. In addition to a short-cycle press, continuous pressing processes with heated press belts may be provided to strip the beaches provided with adhesives, such as glue, glue or resins. To press chips or fibers into wood-based products, in particular wood-based panels. Both the short-cycle presses and the so-called Kontipresen compress the chips or fiber cake or the scattered fibers, chips or strands and activate by the heated press plates or press belts, the adhesives, so that the strands, chips or fibers enter into a permanent bond to each other.
Der Herstellvorgang solcher Holzwerkstoffprodukte ist einer Vielzahl von Parametern unterworfen, beispielsweise der Streudichte, Feuchtigkeit des Ausgangsmaterials, Beleimungsfaktor oder Gleichmäßigkeit des Streuverhaltens bzw. der Orientierung der Ausgangswerkstoffe, so dass für eine optimale Durchführung des Heißpressens von Holzwerkstoffen zur Erzeugung von Holzwerkstoffprodukten die Kenntnis von Prozessparametern, wie Temperatur, Druck und Feuchtigkeit, innerhalb der Holzwerkstoffprodukte wichtig ist. Insbesondere ist es wichtig, dass während des Prozessvorganges, insbesondere bei kontinuierlichen Prozessabläufen, die Daten vorhanden sind, um regelnd eingreifen zu können.The production process of such wood-based material products is subject to a multiplicity of parameters, for example the spreading density, moisture of the starting material, gluing factor or uniformity of the scattering behavior or the orientation of the starting materials, so that the knowledge of process parameters, for optimal performance of the hot pressing of wood-based materials for the production of wood-based products, how temperature, pressure and humidity is important within the wood-based products. In particular, it is important that during the process, especially in continuous processes, the data is present in order to intervene regulate.
Eine Möglichkeit zur Überprüfung der Prozessparameter besteht in der Überprüfung des fertigen Produktes unmittelbar am Ausgang der Presse. Bei kontinuierlichen Fertigungsverfahren müssten dazu Proben sehr aufwendig entnommen werden. Ebenfalls ist dadurch keine Kenntnis der Parameter während des Pressvorganges zu erhalten.One way to check the process parameters is to check the finished product immediately at the exit of the press. For continuous production processes, samples would have to be taken very laboriously. Likewise, this does not give any knowledge of the parameters during the pressing process.
Weiterhin wurde vorgeschlagen, Messgeräte in das zu verpressende Material einzulegen und zu verpressen, wobei diese Messgeräte drahtgebunden sind und an einer Auswerteeinheit angeschlossen werden. Diese Messgeräte sind sehr groß und können nicht im laufenden Herstellprozess eingesetzt werden, ohne diesen zu unterbrechen. Weiterhin müssen diese Messgeräte nach dem Pressen der Holzwerkstoffprodukte wieder entnommen werden, wodurch die Holzwerkstoffprodukte nicht mehr verwendbar sind. Die Entnahme der Messgeräte ist aufwendig und zerstört in der Regel das Holzwerkstoffprodukt. Darüber hinaus muss der Produktionsprozess zur Entnahme des Messgerätes unterbrochen werden.Furthermore, it has been proposed to insert measuring devices into the material to be pressed and to press, wherein these measuring devices are wired and connected to an evaluation unit. These meters are very large and can not be used in the current production process, without interrupting it. Furthermore, these measuring devices must be removed again after pressing the wood-based products, whereby the wood-based products are no longer usable. The removal of the measuring equipment is expensive and usually destroys the wood-based product. In addition, the production process for removing the meter must be interrupted.
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und ein Holzwerkstoffprodukt bereitzustellen, mit dem während der Produktion des Holzwerkstoffproduktes relevante Prozessparameter ermittelt und zur Regelung des Herstellverfahrens bereitgestellt werden können. Erfindungsgemäß wird diese Aufgabe durch ein Verfahren mit den Merkmalen des Anspruchs 1 sowie ein Holzwerkstoffprodukt mit den Merkmalen des Anspruchs 7 gelöst.The object of the present invention is to provide a method and a wood-based material product with which relevant process parameters can be determined during the production of the wood-based material product and provided for the regulation of the production method. According to the invention this object is achieved by a method having the features of claim 1 and a wood-based product having the features of claim 7.
Das erfindungsgemäße Verfahren zur Erfassung von Prozessparametern bei der Herstellung von Holzwerkstoffprodukten, insbesondere von Holzwerkstoffplatten, die unter Aufbringung von Druck und Wärmezufuhr heißverpresst werden, sieht vor, dass in dem laufenden Herstellvorgang zumindest eine Messeinrichtung zur Erfassung von Druck, Temperatur und/oder Feuchtigkeit in das unverpresste Ausgangsmaterial eingebracht wird und in dem Endprodukt verbleibt und dass die gemessenen Prozessparameter drahtlos ausgelesen werden. Durch das vorliegende Verfahren kann vollständig auf das Entfernen der einmal eingebrachten Messeinrichtungen verzichtet werden. Lediglich relativ kleine Messeinrichtungen oder Messgeräte müssen in die Platte eingebracht werden, was nur einen minimalen Eingriff in den Produktionsprozess bedingt. Die Messgeräte sind aufgrund der verfügbaren Methoden der Mikroelektronik und Mikromechanik dergestalt miniaturisiert, dass sie einerseits ohne Beeinträchtigung der Produktqualität in dem Produkt belassen werden können und andererseits der in ausreichender Menge preisgünstig verfügbar sind, so dass keine Entnahme der Messgeräte aus den fertigen Produkten aus wirtschaftlichen Gründen erforderlich ist.The inventive method for detecting process parameters in the production of wood-based products, especially of wood-based panels, which are hot pressed under application of pressure and heat, provides that in the current manufacturing process at least one measuring device for detecting pressure, temperature and / or moisture is introduced into the unpressed starting material and remains in the final product and that the measured process parameters are read out wirelessly. By the present method can be completely dispensed with the removal of the once introduced measuring devices. Only relatively small measuring devices or measuring instruments must be introduced into the plate, which requires only minimal intervention in the production process. The measuring instruments are miniaturized on the basis of the available methods of microelectronics and micromechanics such that they can be left in the product on the one hand without affecting the product quality and on the other hand are available inexpensively in sufficient quantities, so that no removal of the instruments from the finished products for economic reasons is required.
Die Messeinrichtung kann die Prozessparameter speichern, so dass über einen zeitlichen Verlauf hinweg eine Veränderung der Prozessparameter verfolgt werden kann. Die Messeinrichtung ist dabei so ausgestaltet, dass dieThe measuring device can store the process parameters so that a change in the process parameters can be tracked over a time course. The measuring device is designed so that the
Prozessparameter über den gesamten Heißpressvorgang erfasst und gegebenenfalls gespeichert werden, wobei der gesamte Heißpressvorgang mit dem Aufstreuen beginnt und auch das Abkühlen der fertigen Produkte beinhalten kann.Process parameters over the entire hot pressing process recorded and optionally stored, the entire hot pressing process begins with the scattering and may also include the cooling of the finished products.
Die Messeinrichtung kann mit einer Sendeeinrichtung versehen sein, so dass nach der Messung der Prozessparameter diese aktiv gesendet werden können. Alternativ dazu kann die Messeinrichtung als ein „Transducer" ausgebildet sein, so dass die gemessenen und gegebenenfalls gespeicherten Prozessparameter auf Anfrage übermittelt werden.The measuring device may be provided with a transmitting device, so that after the measurement of the process parameters they can be actively sent. Alternatively, the measuring device can be designed as a "transducer", so that the measured and possibly stored process parameters are transmitted on request.
Um ein präzises Zeitfenster zum Erfassen der Prozessparameter bereitstellen zu können, ist vorgesehen, dass die Messeinrichtung vor dem Heißpressvorgang aktiviert wird, so dass ein Startpunkt für die Auswertung derIn order to provide a precise time window for detecting the process parameters, it is provided that the measuring device is activated before the hot pressing process, so that a starting point for the evaluation of the
Prozessparameter definiert wird. Ebenfalls kann vorgesehen sein, dass eine Deaktivierung der Messeinrichtung zu einem gewünschten, festgelegten Zeitpunkt oder Prozessstadium erfolgt.Process parameter is defined. It can also be provided that a Deactivation of the measuring device takes place at a desired, fixed point in time or process stage.
Das Holzwerkstoffprodukt, insbesondere die Holzwerkstoffplatte, das aus heißverpressten Holzwerkstoffen hergestellt ist, sieht vor, dass eine Messeinrichtung in dem Holzwerkstoffprodukt eingebracht ist, wobei die Messeinrichtung die Prozessparameter an eine externe Ausleseinheit drahtlos übermittelt. Die Messeinrichtung kann als „Transducer" ausgebildet oder mit einer aktiven, selbständig sendenden Sendeeinheit ausgestattet sein, um die Prozessparameter bzw. Messdaten, die während des Heißpressvorganges ermittelt wurden, an eine externe Ausleseeinheit zu übermitteln. Die Messeinrichtung kann die Prozessparameter speichern, so dass keine unmittelbare Übermittlung der Daten an die Auswerte- bzw. Ausleseeinheit erfolgen muss. The wood-based product, in particular the wood-based panel, which is made of hot-pressed wood materials, provides that a measuring device is incorporated in the wood-based product, wherein the measuring device transmits the process parameters wirelessly to an external readout unit. The measuring device can be designed as a "transducer" or can be equipped with an active, independently transmitting transmitting unit in order to transmit the process parameters or measured data, which were determined during the hot pressing process, to an external readout unit immediate transmission of the data must be made to the evaluation or readout unit.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der beigefügten Figuren näher erläutert. Es zeigen:Hereinafter, an embodiment of the invention will be explained in more detail with reference to the accompanying figures. Show it:
Figur 1 - eine Messeinrichtung auf einer Schicht beleimter Späne oder Fasern;Figure 1 - a measuring device on a layer of glued chips or fibers;
Figur 2 - eine eingebettete Messeinrichtung bei der Aktivierung;Figure 2 - an embedded measuring device during activation;
Figur 3 - einen Heißpressvorgang; sowieFigure 3 - a hot pressing process; such as
Figur 4 - einen Auslesevorgang der Prozessdaten.Figure 4 - a readout process of the process data.
In der Figur 1 ist eine erste Stufe der Herstellung eines Holzwerkstoffproduktes, vorliegend einer Holzwerkstoffplatte, dargestellt, bei der auf einem unteren Pressblech 1 eine erste Schicht oder Lage beleimter Späne, Strands oder Fasern 2 aufgestreut ist. Die Strands, Späne oder Fasern können auch als ein Gemisch daraus hergestellt sein. Auf diese erste Schicht Strands, Fasern oder Späne 2 wird eine Messeinrichtung 3 in Gestalt eines miniaturisierten Messaufnehmers aufgelegt bzw. eingestreut, die in der Lage ist, die relevanten Prozessparameter wie Druck, Temperatur und Feuchtigkeit zu ermitteln und gegebenenfalls aufzuzeichnen.FIG. 1 shows a first stage of the production of a wood-based product, here a wood-based panel, in which a first layer or layer of glued chips, strands or fibers 2 is sprinkled on a lower press panel 1. The strands, chips or fibers may also be made as a mixture thereof. Onto this first layer of strands, fibers or chips 2, a measuring device 3 in the form of a miniaturized measuring sensor is placed or interspersed, which is able to determine the relevant process parameters such as pressure, temperature and humidity and, if necessary, to record.
Im weiteren Verfahren, das in der Figur 2 gezeigt ist, wird auf die erste Schicht 2 der Strands, Späne oder Fasern eine Abdeckschicht 21 aufgestreut, die bevorzugt aus dem gleichen Werkstoff oder den gleichen Werkstoffen wie die erste Schicht 2 ausgebildet ist. Dadurch wird die Messeinrichtung 3 innerhalb der Schicht 2, 21 der Strands, Fasern oder Späne eingebettet, die Messeinrichtung 3 ist somit vollständig in dem Span- oder Faserkuchen eingeschlossen und eingebettet. Oberhalb der Messeinrichtung 3 jenseits der Schicht 21 aus Strands, Spänen oder Fasern ist eine Aktivierungseinheit 4 vorgesehen, an der entlang die Messeinrichtung 3 vorbeigeführt wird. Alternativ dazu kann die Aktivierungseinheit 4 an der unbewegten Schicht 2, 21 aus Strands, Fasern oder Spänen vorbeigeführt werden, insbesondere wenn statt eines kontinuierlichen Fertigungsprozesses die Fertigung in einer Kurztraktpresse vorgenommen wird. Nach Aktivierung der Messeinrichtung 3 beginnt diese mit der Aufzeichnung der relevanten Prozessparameter.In the further method, which is shown in FIG. 2, a cover layer 21 which is preferably formed from the same material or the same materials as the first layer 2 is sprinkled onto the first layer 2 of the strands, chips or fibers. Thereby, the measuring device 3 is embedded within the layer 2, 21 of the strands, fibers or chips, the measuring device 3 is thus completely enclosed and embedded in the chip or fiber cake. Above the measuring device 3 beyond the layer 21 of strands, chips or fibers an activation unit 4 is provided, along which the measuring device 3 is guided past. Alternatively, the activation unit 4 at the stationary layer 2, 21 of Strands, fibers or chips are passed, especially if instead of a continuous manufacturing process, the production is carried out in a short press. After activation of the measuring device 3, this begins with the recording of the relevant process parameters.
In der Figur 3 ist ein Ausschnitt eines Pressvorganges gezeigt, bei der die Schichten 2, 21 aus Strands, Spänen oder Fasern zusammen mit der Messeinrichtung 3 zwischen einem unteren Pressblech 1 und einem oberen Pressblech 11 eingeschlossen sind. Die Pressbleche 1 , 11 sind in einem Winkel zueinander ausgerichtet, so dass sich der Abstand der beiden Pressbleche 1 , 11 zueinander in Transportrichtung, die durch die Pfeile angedeutet ist, verringert. Die Pressbleche 1 , 11 können als umlaufende Pressbänder ausgebildet sein, die über Rollen und Heizeinrichtungen 5, 51 angetrieben und beheizt werden, so dass unter Druck- und Hitzezufuhr die Holzwerkstoffe 2, 21 , die mit einem Klebstoff, Leim oder dergleichen beschichtet oder benetzt sind, zu einem Endprodukt zusammengepresst werden. Über den gesamten Verlauf der Pressstrecke wird in der Messeinrichtung 3 die Ermittlung, Erfassung und gegebenenfalls Speicherung der Prozessparameter, wie Druck, Temperatur und Feuchtigkeit, innerhalb der entstehenden Holzwerkstoffplatte durchgeführt und gegebenenfalls an eine nicht dargestellte Auslese- und Auswerteeinheit übermittelt. Sofern die Messeinrichtung 3 eine Speichereinrichtung aufweist, kann das Auslesen der Daten auch zu einem späteren Zeitpunkt erfolgen.FIG. 3 shows a section of a pressing process in which the layers 2, 21 of strands, chips or fibers are enclosed together with the measuring device 3 between a lower press plate 1 and an upper press plate 11. The press plates 1, 11 are aligned at an angle to each other, so that the distance between the two press plates 1, 11 to each other in the transport direction, which is indicated by the arrows, reduced. The press plates 1, 11 may be formed as revolving press belts, which are driven and heated by rollers and heaters 5, 51, so that under pressure and heat supply, the wood materials 2, 21, which are coated or wetted with an adhesive, glue or the like to be compressed to a final product. Over the entire course of the press section in the measuring device 3, the determination, detection and optionally storage of the process parameters, such as pressure, temperature and humidity, carried out within the resulting wood-based panel and optionally transmitted to a reading and evaluation unit, not shown. If the measuring device 3 has a memory device, the reading of the data can also be done at a later time.
In der Figur 4 ist das fertige Holzwerkstoffprodukt 6 in einer verdichteten, kompakten Gestalt dargestellt, Im Kern des Holzwerkstoffproduktes 6, vorliegend der Holzwerkstoffplatte, ist die Messeinrichtung 3 eingebettet. DasIn the figure 4, the finished wood material product 6 is shown in a compacted, compact form, in the core of the wood-based product 6, in this case the wood-based panel, the measuring device 3 is embedded. The
Auslesegerät 7 ist oberhalb der Messeinrichtung 3 angeordnet und empfängt die in der Messeinrichtung 3 abgelegten Prozessparameter. Das Auslesen kann unmittelbar nach der Beendigung des Pressvorganges erfolgen, gegebenenfalls kann auch ein Abkühlvorgang mit erfasst werden, so dass sich die entsprechenden Veränderungen innerhalb des Holzwerkstoffproduktes 6 erfassen lassen. Die Übermittlung und Auswertung der Daten der Messeinrichtung 3 erfolgt drahtlos, so dass die Messeinrichtung 3, die relativ kleine Abmessungen gegenüber dem Holzwerkstoffprodukt 6 aufweist, in dem Holzwerkstoffprodukt 6 verbleiben kann. Die Messeinrichtung 3 kann als „Transducer" ausgebildet sein, über den auf Anforderung hin die Daten ausgelesen werden, so dass keine eigene Energieversorgung zur Übermittlung der Prozessdaten erforderlich ist. Ebenfalls könnenReadout device 7 is arranged above the measuring device 3 and receives the stored in the measuring device 3 process parameters. The reading can be done immediately after the completion of the pressing process, if necessary, a cooling process can be detected so that the corresponding changes can be detected within the wood-based product 6. The transmission and evaluation of the data of the Measuring device 3 is wireless, so that the measuring device 3, which has relatively small dimensions compared to the wood-based product 6, may remain in the wood-based product 6. The measuring device 3 can be designed as a "transducer", via which the data is read out on request, so that no separate power supply is required for the transmission of the process data
Energiespeichereinrichtungen für eine aktive Sendung und Übermittlung der Prozessdaten innerhalb der Messeinrichtung 3 vorhanden sein, so dass die ermittelten Prozessparameter einfach ausgelesen werden können.Energy storage devices for an active transmission and transmission of the process data to be present within the measuring device 3, so that the determined process parameters can be easily read.
Da die Messeinrichtungen 3 in dem Holzwerkstoffprodukt 6 verbleiben, kann auch zu einem späteren Zeitpunkt der Druck und ggf. die Feuchtigkeit innerhalb des Holzwerkstoffproduktes 6 erfasst und ausgelesen werden, so dass eine Zustandserfassung und -bestimmung des Holzwerkstoffproduktes 6 in dessen Gebrauch möglich ist. Since the measuring devices 3 remain in the wood-based product 6, the pressure and possibly the moisture within the wood-based product 6 can be detected and read at a later time, so that a state detection and determination of the wood-based product 6 in its use is possible.

Claims

Patentansprüche claims
1. Verfahren zur Erfassung von Prozessparametern bei der Herstellung von Holzwerkstoffprodukten aus einem Ausgangsmaterial, insbesondere Holzwerkstoffplatten, die unter Aufbringung von Druck und Wärmezufuhr heißverpresst werden, dadurch gekennzeichnet, dass in dem laufenden Herstellvorgang zumindest eine Messeinrichtung (3) zur Erfassung von Druck, Temperatur und/oder Feuchtigkeit in das unverpresste Ausgangsmaterial (2) eingebracht wird und in dem Endprodukt (6) verbleibt und die gemessenen Prozessparameter drahtlos ausgelesen werden.1. A method for detecting process parameters in the production of wood-based products from a starting material, in particular wood-based panels, which are hot pressed under application of pressure and heat, characterized in that in the current manufacturing process at least one measuring device (3) for detecting pressure, temperature and / or moisture is introduced into the unpressed starting material (2) and remains in the final product (6) and the measured process parameters are read out wirelessly.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die2. The method according to claim 1, characterized in that the
Messeinrichtung (3) die Prozessparameter speichert.Measuring device (3) stores the process parameters.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Messeinrichtung (3) die Prozessparameter über den gesamten Heißpressvorgang erfasst und speichert.3. The method according to claim 1 or 2, characterized in that the measuring device (3) detects and stores the process parameters over the entire hot pressing process.
4. Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Messeinrichtung (3) die gemessenen Prozessparameter aktiv sendet.4. The method according to any one of the preceding claims, characterized in that the measuring device (3) actively sends the measured process parameters.
5. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Messeinrichtung (3) als Transducer ausgebildet ist und die gemessenen und gegebenenfalls gespeicherten Prozessparameter auf Anfrage übermittelt.5. The method according to any one of claims 1 to 3, characterized in that the measuring device (3) is designed as a transducer and transmits the measured and possibly stored process parameters on request.
6. Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Messeinrichtung (3) vor dem6. The method according to any one of the preceding claims, characterized in that the measuring device (3) before the
Heißpressvorgang aktiviert wird. Hot pressing process is activated.
7. Holzwerkstoffprodukt, das aus heißverpressten Holzwerkstoffen hergestellt ist, dadurch gekennzeichnet, dass eine Messeinrichtung (3) in dem Holzwerkstoffprodukt (6) eingebracht ist, die Prozessparameter an eine externe Ausleseeinheit (7) drahtlos übermittelt.7. wood product, which is made of hot-pressed wood materials, characterized in that a measuring device (3) in the wood-based product (6) is introduced, the process parameters transmitted to an external readout unit (7) wirelessly.
8. Holzwerkstoffprodukt nach Anspruch 7, dadurch gekennzeichnet, dass die Messeinrichtung (3) als Transducer ausgebildet ist.8. wood material product according to claim 7, characterized in that the measuring device (3) is designed as a transducer.
9. Messeinrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Messeinrichtung (3) die Prozessparameter speichert.9. Measuring device according to claim 7 or 8, characterized in that the measuring device (3) stores the process parameters.
10. Messeinrichtung nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Messeinrichtung (3) mit einer Sendeeinheit gekoppelt ist. 10. Measuring device according to one of the preceding claims, characterized in that the measuring device (3) is coupled to a transmitting unit.
EP08758161A 2007-06-04 2008-06-03 Method for the detection of process parameters Active EP2150384B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08758161T PL2150384T3 (en) 2007-06-04 2008-06-03 Method for the detection of process parameters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007026155A DE102007026155A1 (en) 2007-06-04 2007-06-04 Method for recording process parameters and wood-based product
PCT/DE2008/000932 WO2008148380A1 (en) 2007-06-04 2008-06-03 Method for the detection of process parameters, and wood product

Publications (2)

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EP2150384A1 true EP2150384A1 (en) 2010-02-10
EP2150384B1 EP2150384B1 (en) 2013-04-03

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US (1) US8075815B2 (en)
EP (1) EP2150384B1 (en)
CA (1) CA2688408C (en)
DE (1) DE102007026155A1 (en)
ES (1) ES2404809T3 (en)
PL (1) PL2150384T3 (en)
PT (1) PT2150384E (en)
WO (1) WO2008148380A1 (en)

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NL2016003B1 (en) * 2015-12-22 2017-07-03 Trespa Int Bv A decorative panel.

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Publication number Publication date
PT2150384E (en) 2013-06-07
DE102007026155A1 (en) 2009-01-08
EP2150384B1 (en) 2013-04-03
US8075815B2 (en) 2011-12-13
ES2404809T3 (en) 2013-05-29
PL2150384T3 (en) 2013-09-30
WO2008148380A1 (en) 2008-12-11
US20100164132A1 (en) 2010-07-01
CA2688408A1 (en) 2008-12-11
CA2688408C (en) 2014-09-02

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