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EP3013589B1 - Wood material board production assembly and method for manufacturing a wood material board - Google Patents

Wood material board production assembly and method for manufacturing a wood material board Download PDF

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Publication number
EP3013589B1
EP3013589B1 EP15701673.4A EP15701673A EP3013589B1 EP 3013589 B1 EP3013589 B1 EP 3013589B1 EP 15701673 A EP15701673 A EP 15701673A EP 3013589 B1 EP3013589 B1 EP 3013589B1
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EP
European Patent Office
Prior art keywords
temperature
wood material
material board
wood
printing
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.)
Active
Application number
EP15701673.4A
Other languages
German (de)
French (fr)
Other versions
EP3013589A1 (en
Inventor
Timo Skorzik
Thomas Habetha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flooring Technologies Ltd
Original Assignee
Flooring Technologies Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP15701673.4A priority Critical patent/EP3013589B1/en
Priority to PL15701673T priority patent/PL3013589T3/en
Publication of EP3013589A1 publication Critical patent/EP3013589A1/en
Application granted granted Critical
Publication of EP3013589B1 publication Critical patent/EP3013589B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0022—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using convection means, e.g. by using a fan for blowing or sucking air
    • 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
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • 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
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • B27N7/005—Coating boards, e.g. with a finishing or decorating layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers

Definitions

  • the invention relates to a wood panel manufacturing plant according to the preamble of claim 1. According to a second aspect, the invention relates to a method according to the preamble of claim 7.
  • wood-based panel blanks are often primed before printing.
  • the primer should ensure a uniform coloration both from plate to plate and from batch to batch, so that subsequent printing leads to a reproducible result.
  • the wood-based panels blanks are primed white.
  • the wood-based panel blank is primed with several jobs with white pigmented synthetic resins, such as melamine resin. Before printing, the primer is dried to reduce the amount of water in the resin.
  • the invention has for its object to increase the reproducibility when printing wood-based panels blanks.
  • the invention solves the problem by a wood-based panel manufacturing system having the features of claim 1. According to a second aspect, the invention solves the problem by a method having the features of claim 7.
  • An advantage of the invention is that the wood-based panels produced have a lower color variation. It has been found that the temperature of the wood-based panel blank has a significant influence on the printing result. At higher temperatures, the ink sprayed during printing flows less far, as it loses more water due to the higher temperature. Therefore, at a higher temperature of the wood-based panel blank, the viscosity of the sprayed ink increases faster and the ink droplets have a relatively small diameter. At a low temperature of the wood-based panel blank, however, the viscosity of the ink droplets decreases more slowly, so that otherwise the same printer settings, the ink droplets are stronger.
  • the described effect causes the printed image to appear desaturated at a higher inlet temperature. At low inlet temperature results in a higher Cover, but a blurred picture of the printed motif. Both effects are not wanted.
  • the inlet temperature can be monitored, with which the wood-based panel blank enters the digital printing device. This makes it possible to influence the inlet temperature on the basis of the determined temperature so that the inlet temperature is always kept within a set interval.
  • the measured inlet temperature is used to deactivate the digital printing device at least temporarily when the inlet temperature is outside the desired interval. This prevents a wood-based panel from being provided with unsatisfactory pressure and opens up the possibility of printing the wood-based panel blank in a later step. Both lead to less waste.
  • the digital printing device is understood in particular to mean a printing device by means of which at least one colored liquid can be dispensed in small droplets onto the wood-based board blank in such a way that an image is printed.
  • the temperature measuring device is understood in particular to mean a device by means of which a temperature can be determined at least on a surface of the wood-based panel blank which is uniquely associated with the inlet temperature.
  • the run-in temperature is understood to mean that temperature which the wood-based panel blank has when printed by the digital printing device.
  • the inlet temperature is the temperature of the surface of the wood-based panel blank immediately below the pressure beam.
  • the temperature measuring device is arranged on or in the digital printing device.
  • the temperature measuring device is arranged so that by means of the temperature measuring device, a temperature reading is obtained, by means of which it can be concluded with sufficient accuracy on the inlet temperature.
  • the temperature measuring device is arranged in a material flow direction in front of the digital printing device.
  • the temperature measuring device it is also possible in principle for the temperature measuring device to be arranged behind the digital printing device, the temperature measured values thus obtained generally having a lower significance.
  • the wood-based panel blank manufacturing apparatus comprises a primer for priming the wood-based panel blank, the primer having a dryer.
  • the temperature measuring device is connected to the dryer for controlling a dry temperature, so that the inlet temperature is adjustable by changing the dry temperature.
  • the primer is adapted for white priming the wood-based panel, for example, the primer for applying a pigmented, in particular white pigmented, synthetic resin, in particular a melamine resin.
  • a pigmented, in particular white pigmented, synthetic resin in particular a melamine resin.
  • the primer Since the primer is arranged in the material flow direction in front of the digital printing device, an increase in the dry temperature usually leads to an increase in the inlet temperature. It is therefore possible to control the inlet temperature by changing the drying temperature.
  • a parameter influencing the drying progress for example an air velocity, is blown over the primed wood-based panel blank by means of the hot air, from a regulation or control of the Automatically changes the dryer so in opposite directions to the temperature, that changes the inlet temperature, but not the moisture of the primer.
  • the wood-based panel manufacturing plant has a drive unit which is connected to the temperature measuring device and the digital printing device and which is adapted to automatically generate a temperature warning signal when the inlet temperature is outside a predetermined target interval and / or for automatic Interrupting printing if the inlet temperature is outside the specified target interval. It is possible that the temperature warning signal will be converted into a human-perceivable signal. This allows a machine operator to influence the production conditions, so that the inlet temperature can be brought into the predetermined target interval. Although the interruption of printing leads to the fact that no wood-based panel is made, but it allows to print the wood-based panel in a subsequent step at the right temperature.
  • the temperature measuring device has at least three spatially-spaced temperature sensors and is configured to determine a temperature difference between at least two of the spaced temperature sensors and to generate a temperature difference alarm signal when the temperature difference is outside a predetermined temperature interval.
  • the temperature sensors are arranged so that the temperature difference across a width of the wood-based panel blank can be determined.
  • the width of the wood-based panel blank is that extension which is perpendicular to the material flow direction. Basically, it is desirable that the wood-based panel blank over its entire width has the lowest possible temperature gradient. If the temperature gradient becomes too large and thus the temperature difference, the printing result varies over the width of the wood-based panel, which is undesirable.
  • the temperature measuring device is configured to determine a temperature profile across the width of the wood-based panel blank and to determine a maximum temperature difference between two locations along the widthwise extension. If the calculated temperature difference is outside the predetermined temperature difference interval, a warning signal is output, for example.
  • a arranged in the material flow direction in front of the temperature measuring device component of the wood panel manufacturing device is driven so that the maximum temperature difference is reduced.
  • the temperature measuring device comprises a thermal camera.
  • the dryer is adapted to locally heat the wood-based panel blank and connected to the temperature measuring device such that the temperature difference is reducible.
  • the dryer can be operated with hot air and have a plurality of outlet nozzles through which warm air flows. If, for example, it is detected that the right-hand edge of the wood-based panel blank is too cold, the nozzle can be opened further beyond this edge, so that more hot air is released the wooden material plate blank passes and therefore more heated. In this way, the temperature difference is reduced. Alternatively or additionally, the temperature of the air can be changed.
  • the temperature measuring device is designed to determine a temperature profile over the width of the wood-based panel blank, wherein the dryer is connected to the temperature measuring device and is adapted to heat the wood-based panel blank so that the temperature profile deviates as little as possible from a desired temperature profile.
  • the target temperature profile will be a uniform temperature over the full width of the wood-based panel blank.
  • the wood panel manufacturing plant comprises a tempering unit, which is designed for bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature and / or bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature distribution.
  • a tempering unit which is designed for bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature and / or bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature distribution.
  • the tempering unit comprises locally effective heat-applying elements, by means of which at least the surface of the wood-based panel blank can be heated to a predetermined inlet temperature.
  • the heat application elements are heat radiating elements or hot air sources for discharging warm air.
  • the tempering unit comprises locally effective cooling elements by means of which at least the surface of the wood-based panel blank can be cooled locally to the predetermined inlet temperature.
  • the cooling elements are cold gas sources for discharging a cooling gas, in particular air.
  • FIG. 1 schematically shows a wood board manufacturing plant 10, which comprises a wood material board blank manufacturing device 12 and a digital printing device 14.
  • a bearing 16 is arranged, in which the wood material board blanks 18.1, 18.2, ... are stored.
  • a grinding system 20 is arranged, by means of which the wood material board blanks 18 are ground on at least one side.
  • a priming device 22 is arranged, which comprises, for example, an applicator roll 24, by means of which a pigmented synthetic resin 26, which is supplied via a feed 28, is applied to the wood material board blank 18. Behind the applicator roll 24, a dryer 30 is arranged.
  • the dryer 30 comprises a plurality of heating elements 32.1, 32.2,..., Which are arranged along a width extension B of the wood material board blank 18.
  • Each heating element 32 (reference numerals without counting suffix refer to all corresponding objects) is individually controlled in its heating power and / or its temperature, so that a temperature T of the wood-based panel blank 18 on its surface O as a function of a transverse coordinate y, along the Width B runs, is changeable.
  • a temperature control unit 31 be arranged locally effective cooling elements 33.1, 33.2, 33.3 ..., by means of which at least the surface O of the wood material board blank 18 locally to a predetermined temperature T (y) is coolable.
  • T predetermined temperature
  • the cooling elements 33 are blowers for discharging a directed flow of cooling gas from a cooling gas 35, for example air, to the surface O. It is possible that ambient air is used for this, which can be used mostly uncooled.
  • the dryer 30 is not designed to set a local temperature.
  • the temperature control unit 31 can have the heating elements 32 in addition to the cooling elements 33.
  • the temperature control unit 31 has only cooling elements or only heating elements.
  • a temperature distribution T (y) which is selected so that at the location of a print head 15 of the digital printing device 14, a predetermined inlet temperature T 14 or a predetermined inlet temperature profile T 14 (y ).
  • T (y) As the temperature distribution is set T (y), so that the predetermined inlet temperature curve T 14 (y) results, it is determined in preliminary experiments.
  • the intake temperature course T 14 (y) is aimed at as uniform a temperature as possible for all y-positions.
  • the digital printing device 14 is arranged.
  • the temperature measuring device 34 includes at least one temperature sensor 36, in the present case, the temperature measuring device 34 has a plurality of temperature sensors 36.1, 36.2, ....
  • the temperature sensors 36 By means of the temperature sensors 36, the temperature T spatially resolved with respect to a Boothnerstreckung the wood material plate blank 18 are measured, as shown schematically in the lower part of the figure.
  • the temperature sensors 36 are preferably non-contact infrared sensors, the heat radiation of the wood-based panel blank 18, by the arrows schematically is indicated, detect.
  • the wood board manufacturing facility 10 includes a drive unit 38 that is connected to the temperature measurement device 34 and the digital printing device 14.
  • the dryer 30 can have only one heating element, for example a hot air blower.
  • a drying device 42 In the material flow direction R behind the digital printing device 14 is a drying device 42, by means of which the ink and the primer are dried. Thereafter, the resulting wood-based panels are stored in a bearing 44 and then, in a coating system 46, for example by means of the liquid overlay technology with an abrasion protective layer finished, so that a finished wood-based panel 48 is formed.
  • Wood panel blank making device I Target interval n natural number 14 Digital printing device R Material flow direction 15 printhead O surface 16 camp 18 Wood panel blank T temperature T 14 Inlet temperature 20 grinding machine T target set temperature 22 Grundiervoriques 24 order volume 26 resin 28 feed 30 dryer 31 temperature control 32 heating element 34 Temperature measuring device 35 cooling gas 36 temperature sensor 38 control unit 40 ink 42 dryer 44 camp 46 coating plant 48 Wood panel

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

Die Erfindung betrifft eine Holzplatten-Herstellanlage gemƤƟ dem Oberbegriff von Anspruch 1. GemƤƟ einem zweiten Aspekt betrifft die Erfindung ein Verfahren gemƤƟ dem Oberbegriff von Anspruch 7.The invention relates to a wood panel manufacturing plant according to the preamble of claim 1. According to a second aspect, the invention relates to a method according to the preamble of claim 7.

Die OberflƤchen von Holzwerkstoffplatten, insbesondere von hochdichten Faserplatten, weisen eine FƤrbung auf, die sich von Charge zu Charge und sogar innerhalb einer Charge verƤndern kann. Besonders deutlich tritt dieser Effekt bei einer Ƅnderung des zur Herstellung der Holzwerkstoffplatte verwendeten Holzrezepts und/oder der Bedingung des thermomechanischen Aufschlusses auf. Daher werden Holzwerkstoffplattenrohlinge oft vor dem Bedrucken grundiert. Die Grundierung soll dabei sowohl von Platte zu Platte als auch von Charge zu Charge eine gleichmƤƟige FƤrbung sicherstellen, sodass das nachtrƤgliche Bedrucken zu einem reproduzierbaren Ergebnis fĆ¼hrt. Ɯblicherweise werden die Holzwerkstoffplattenrohlinge weiƟ grundiert. Dazu wird der Holzwerkstoffplattenrohling mit mehreren AuftrƤgen mit weiƟ pigmentierten Kunstharzen, beispielsweise Melaminharz, grundiert. Vor dem Bedrucken wird die Grundierung getrocknet, um den Wasseranteil im Kunstharz zu senken.The surfaces of wood-based panels, especially of high-density fiberboards, have a color that can change from batch to batch and even within a batch. This effect occurs particularly clearly when there is a change in the wood recipe used to produce the wood-based panel and / or the condition of the thermomechanical pulping. Therefore, wood-based panel blanks are often primed before printing. The primer should ensure a uniform coloration both from plate to plate and from batch to batch, so that subsequent printing leads to a reproducible result. Usually, the wood-based panels blanks are primed white. For this purpose, the wood-based panel blank is primed with several jobs with white pigmented synthetic resins, such as melamine resin. Before printing, the primer is dried to reduce the amount of water in the resin.

Es hat sich jedoch herausgestellt, dass trotz der Grundierung bei identischen Druckereinstellungen mit der Zeit verƤnderte Druckergebnisse auf dem Holzwerkstoffplattenrohling erzielt werden, was unerwĆ¼nscht ist.However, it has been found that despite the primer with identical printer settings over time, changed printing results are achieved on the wood-based panel blank, which is undesirable.

Aus der EP 2 301 762 A1 ist ein Verfahren zum Aufbringen einer Struktur auf eine Holzwerkstoffplatte bekannt, bei der ein temperaturgesteuerter Trockner verwendet wird. Es hat sich gezeigt, dass mit derartigen Vorrichtungen reproduzierbare Drucke auf Holzwerkstoffplattenrohlinge mƶglich sind. Das setzt allerdings voraus, dass die Prozessparameter innerhalb ihrer ToleranzbƤnder konstant gehalten werden, was aufwendig ist.From the EP 2 301 762 A1 For example, a method of applying a structure to a wood-based panel using a temperature-controlled dryer is known. It has been shown that with such devices reproducible prints on wood material board blanks are possible. This requires, however, that the process parameters are kept constant within their tolerance bands, which is expensive.

Aus der DE 10 2008 008 292 A1 ist ein Verfahren zum Herstellen eines bedruckten oder bedruckbaren Bauteils bekannt, bei der eine Papierlage bedruckt und diese auf den Holzwerkstoffplattenrohling aufgebracht wird. Um ein gutes Druckergebnis zu erzielen, wird die Papierschicht vor, wƤhrend und/oder nach dem Aufbringen der Farbschicht beheizt.From the DE 10 2008 008 292 A1 a method for producing a printed or printable component is known, printed in a paper layer and this is applied to the wood-based panel blank. In order to achieve a good printing result, the paper layer is heated before, during and / or after the application of the color layer.

Der Erfindung liegt die Aufgabe zugrunde, die Reproduzierbarkeit beim Bedrucken von Holzwerkstoffplattenrohlingen zu erhƶhen.The invention has for its object to increase the reproducibility when printing wood-based panels blanks.

Die Erfindung lƶst das Problem durch Holzwerkstoffplatten-Herstellanlage mit den Merkmalen von Anspruch 1. GemƤƟ einem zweiten Aspekt lƶst die Erfindung das Problem durch ein Verfahren mit den Merkmalen von Anspruch 7.The invention solves the problem by a wood-based panel manufacturing system having the features of claim 1. According to a second aspect, the invention solves the problem by a method having the features of claim 7.

Vorteilhaft an der Erfindung ist, dass die hergestellten Holzwerkstoffplatten eine geringere Farbschwankung aufweisen. Es hat sich nƤmlich herausgestellt, dass die Temperatur des Holzwerkstoffplattenrohlings einen signifikanten Einfluss auf das Druckergebnis hat. Bei hƶherer Temperatur flieƟt die beim Bedrucken aufgespritzte Tinte weniger weit, da sie aufgrund der hƶheren Temperatur rascher an Wasser verliert. Bei einer hƶheren Temperatur des Holzwerkstoffplattenrohlings steigt daher die ViskositƤt der aufgespritzten Tinte schneller an und die Tintentrƶpfchen haben einen relativ kleinen Durchmesser. Bei einer niedrigen Temperatur des Holzwerkstoffplattenrohlings hingegen fƤllt die ViskositƤt der Tintentrƶpfchen langsamer ab, sodass bei ansonsten gleichen Druckereinstellungen die Tintentrƶpfchen stƤrker verlaufen.An advantage of the invention is that the wood-based panels produced have a lower color variation. It has been found that the temperature of the wood-based panel blank has a significant influence on the printing result. At higher temperatures, the ink sprayed during printing flows less far, as it loses more water due to the higher temperature. Therefore, at a higher temperature of the wood-based panel blank, the viscosity of the sprayed ink increases faster and the ink droplets have a relatively small diameter. At a low temperature of the wood-based panel blank, however, the viscosity of the ink droplets decreases more slowly, so that otherwise the same printer settings, the ink droplets are stronger.

Der beschriebene Effekt fĆ¼hrt dazu, dass bei hƶherer Einlauf-Temperatur das Druckbild entsƤttigt erscheint. Bei niedriger Einlauf-Temperatur ergibt sich eine hƶhere Deckung, jedoch eine unscharfe Abbildung des gedruckten Motivs. Beide Effekte sind nicht erwĆ¼nscht. Durch die Temperaturmessvorrichtung kann die Einlauf-Temperatur Ć¼berwacht werden, mit der der Holzwerkstoffplattenrohling in die Digitaldruckvorrichtung einlƤuft. Das ermƶglicht es, auf Basis der ermittelten Temperatur Einfluss auf die Einlauf-Temperatur zu nehmen, sodass die Einlauf-Temperatur stets in einem Soll-Intervall gehalten wird.The described effect causes the printed image to appear desaturated at a higher inlet temperature. At low inlet temperature results in a higher Cover, but a blurred picture of the printed motif. Both effects are not wanted. By the temperature measuring device, the inlet temperature can be monitored, with which the wood-based panel blank enters the digital printing device. This makes it possible to influence the inlet temperature on the basis of the determined temperature so that the inlet temperature is always kept within a set interval.

Alternativ oder zusƤtzlich ist es mƶglich, dass die gemessene Einlauf-Temperatur dazu verwendet wird, die Digitaldruckvorrichtung zumindest zeitweise zu deaktivieren, wenn die Einlauf-Temperatur auƟerhalb des Soll-Intervalls liegt. So wird verhindert, dass eine Holzwerkstoffplatte mit einem unbefriedigenden Druck versehen wird und erƶffnet die Mƶglichkeit, den Holzwerkstoffplattenrohling in einem spƤteren Arbeitsgang zu bedrucken. Beides fĆ¼hrt zu weniger Ausschuss.Alternatively or additionally, it is possible that the measured inlet temperature is used to deactivate the digital printing device at least temporarily when the inlet temperature is outside the desired interval. This prevents a wood-based panel from being provided with unsatisfactory pressure and opens up the possibility of printing the wood-based panel blank in a later step. Both lead to less waste.

Es ist ein weiterer Vorteil, dass die Steigerung der DruckqualitƤt mit technisch einfachen Mitteln erreicht werden kann. Die Messung der Temperatur erfordern nur einen geringen apparativen Aufwand und kann zudem prozesssicher durchgefĆ¼hrt werden. Der Vorteil des verbesserten Druckergebnisses muss daher nur mit einem geringen zusƤtzlichen apparativen Aufwand erkauft werden.It is a further advantage that the increase in print quality can be achieved with technically simple means. The measurement of the temperature require only a small amount of equipment and can also be carried out reliably. The advantage of the improved printing result must therefore be paid for with only a small additional expenditure on equipment.

Es ist ein weiterer Vorteil, dass detailliertere und zugleich farbgesƤttigte Dekore aufdruckbar sind. Durch die Mƶglichkeit, die Einlauf-Temperatur im Soll-Intervall zu halten, muss beim Design des Dekors nicht mehr auf die erreichbare Detailtiefe geachtet werden, sodass auch detaillierte Dekore aufgedruckt werden kƶnnen. Aufgrund der Erfindung kƶnnen daher der RealitƤt noch nƤher kommende Dekore aufgedruckt werden.It is a further advantage that more detailed and at the same time color-saturated decors can be imprinted. Due to the possibility of keeping the inlet temperature within the target interval, it is no longer necessary to pay attention to the achievable depth of detail in the design of the decor so that even detailed decors can be printed. Due to the invention, the reality even closer decors can be printed.

Im Rahmen der vorliegenden Beschreibung wird unter der Digitaldruckvorrichtung insbesondere eine Druckvorrichtung verstanden, mittels der zumindest eine FarbflĆ¼ssigkeit in kleinen Trƶpfchen so auf den Holzwerkstoffplattenrohling abgegeben werden kann, dass ein Bild aufgedruckt wird.In the context of the present description, the digital printing device is understood in particular to mean a printing device by means of which at least one colored liquid can be dispensed in small droplets onto the wood-based board blank in such a way that an image is printed.

Unter der Temperaturmessvorrichtung wird insbesondere eine Vorrichtung verstanden, mittels der eine Temperatur zumindest an einer OberflƤche des Holzwerkstoffplattenrohlings bestimmt werden kann, die in eindeutigem Zusammenhang mit der Einlauf-Temperatur steht. Unter der Einlauf-Temperatur wird diejenige Temperatur verstanden, die der Holzwerkstoffplattenrohling hat, wenn er von der Digitaldruckvorrichtung bedruckt wird. In anderen Worten ist die Einlauf-Temperatur die Temperatur der OberflƤche des Holzwerkstoffplattenrohlings unmittelbar unterhalb des Druckbalkens.The temperature measuring device is understood in particular to mean a device by means of which a temperature can be determined at least on a surface of the wood-based panel blank which is uniquely associated with the inlet temperature. The run-in temperature is understood to mean that temperature which the wood-based panel blank has when printed by the digital printing device. In other words, the inlet temperature is the temperature of the surface of the wood-based panel blank immediately below the pressure beam.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform ist die Temperaturmessvorrichtung an oder in der Digitaldruckvorrichtung angeordnet. Alternativ ist die Temperaturmessvorrichtung so angeordnet, dass mittels der Temperaturmessvorrichtung ein Temperaturmesswert erhalten wird, mittels dem auf die Einlauf-Temperatur mit hinreichender Genauigkeit geschlossen werden kann.According to a preferred embodiment, the temperature measuring device is arranged on or in the digital printing device. Alternatively, the temperature measuring device is arranged so that by means of the temperature measuring device, a temperature reading is obtained, by means of which it can be concluded with sufficient accuracy on the inlet temperature.

Vorzugsweise ist die Temperaturmessvorrichtung in einer Materialflussrichtung vor der Digitaldruckvorrichtung angeordnet. Es ist jedoch grundsƤtzlich auch mƶglich, dass die Temperaturmessvorrichtung hinter der Digitaldruckvorrichtung angeordnet ist, wobei die so erhaltenen Temperaturmesswerte in der Regel eine geringere Aussagekraft haben.Preferably, the temperature measuring device is arranged in a material flow direction in front of the digital printing device. However, it is also possible in principle for the temperature measuring device to be arranged behind the digital printing device, the temperature measured values thus obtained generally having a lower significance.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform umfasst die Holzwerkstoffplattenrohling-Herstellvorrichtung eine Grundiervorrichtung zum Grundieren des Holzwerkstoffplattenrohlings, wobei die Grundiervorrichtung einen Trockner aufweist. Vorzugsweise ist die Temperaturmessvorrichtung mit dem Trockner zum Regeln einer Trocken-Temperatur verbunden, sodass die Einlauf-Temperatur durch VerƤndern der Trocken-Temperatur einstellbar ist.According to a preferred embodiment, the wood-based panel blank manufacturing apparatus comprises a primer for priming the wood-based panel blank, the primer having a dryer. Preferably, the temperature measuring device is connected to the dryer for controlling a dry temperature, so that the inlet temperature is adjustable by changing the dry temperature.

Vorzugsweise ist die Grundiervorrichtung eingerichtet zum weiƟen Grundieren der Holzwerkstoffplatte, beispielsweise ist die Grundiervorrichtung zum Aufbringen eines pigmentierten, insbesondere weiƟ pigmentierten, Kunstharzes, insbesondere eines Melaminharzes, ausgebildet. Derartige Grundiervorrichtungen sind aus dem Stand der Technik bekannt und werden daher nicht weiter beschrieben.Preferably, the primer is adapted for white priming the wood-based panel, for example, the primer for applying a pigmented, in particular white pigmented, synthetic resin, in particular a melamine resin. Such Grundiervorrichtungen are known in the art and are therefore not further described.

Da die Grundiervorrichtung in Materialflussrichtung vor der Digitaldruckvorrichtung angeordnet ist, fĆ¼hrt eine Erhƶhung der Trocken-Temperatur in aller Regel zu einer Erhƶhung der Einlauf-Temperatur. Es ist daher mƶglich, die Einlauf-Temperatur durch VerƤndern der Trocken-Temperatur zu regeln. Um den Wassergehalt der Grundierung auch bei variierenden Temperaturen konstant zu halten, ist es mƶglich und stellt eine bevorzugte AusfĆ¼hrungsform dar, dass ein den Trocknungsfortschritt beeinflussender Parameter, beispielsweise eine Luftgeschwindigkeit, mittels der Warmluft Ć¼ber den grundierten Holzwerkstoffplattenrohling geblasen wird, von einer Regelung oder Steuerung des Trockners automatisch so gegenlƤufig zur Temperatur geƤndert wird, dass sich zwar die Einlauf-Temperatur Ƥndert, nicht aber die Feuchte der Grundierung.Since the primer is arranged in the material flow direction in front of the digital printing device, an increase in the dry temperature usually leads to an increase in the inlet temperature. It is therefore possible to control the inlet temperature by changing the drying temperature. In order to keep the water content of the primer constant even at varying temperatures, it is possible and represents a preferred embodiment that a parameter influencing the drying progress, for example an air velocity, is blown over the primed wood-based panel blank by means of the hot air, from a regulation or control of the Automatically changes the dryer so in opposite directions to the temperature, that changes the inlet temperature, but not the moisture of the primer.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform besitzt die Holzwerkstoffplatten-Herstellanlage eine Ansteuereinheit, die mit der Temperaturmessvorrichtung und der Digitaldruckvorrichtung verbunden ist und die eingerichtet ist zum automatischen Generieren eines Temperatur-Warnsignals, wenn die Einlauf-Temperatur auƟerhalb eines vorgegebenen Soll-Intervalls liegt und/oder zum automatischen Unterbrechen des Bedruckens, wenn die Einlauf-Temperatur auƟerhalb des vorgegebenen Soll-Intervalls liegt. Es ist mƶglich, dass das Temperatur-Warnsignal in ein vom Menschen wahmehmbares Signal umgewandelt wird. Das ermƶglicht es einem MaschinenfĆ¼hrer, Einfluss auf die Produktionsbedingungen zu nehmen, sodass die Einlauf-Temperatur in das vorgegebene Soll-Intervall bringbar ist. Das Unterbrechen des Bedruckens fĆ¼hrt zwar dazu, dass keine Holzwerkstoffplatte hergestellt wird, ermƶglicht es aber, die Holzwerkstoffplatte in einem nachgeschalteten Arbeitsschritt bei richtiger Temperatur zu bedrucken.According to a preferred embodiment, the wood-based panel manufacturing plant has a drive unit which is connected to the temperature measuring device and the digital printing device and which is adapted to automatically generate a temperature warning signal when the inlet temperature is outside a predetermined target interval and / or for automatic Interrupting printing if the inlet temperature is outside the specified target interval. It is possible that the temperature warning signal will be converted into a human-perceivable signal. This allows a machine operator to influence the production conditions, so that the inlet temperature can be brought into the predetermined target interval. Although the interruption of printing leads to the fact that no wood-based panel is made, but it allows to print the wood-based panel in a subsequent step at the right temperature.

GemƤƟ einer erfindungsgemƤƟen AusfĆ¼hrungsform besitzt die Temperaturmessvorrichtung zumindest drei rƤumlich beabstandete Temperatursensoren und ist eingerichtet zum Bestimmen einer Temperaturdifferenz zwischen zumindest zwei der beabstandeten Temperatursensoren und zum Generieren eines Temperaturdifferenzwarnsignals, wenn die Temperaturdifferenz auƟerhalb eines vorgegebenen Temperatur-Intervalls liegt. Vorzugsweise sind die Temperatursensoren so angeordnet, dass die Temperaturdifferenz Ć¼ber eine Breite des Holzwerkstoffplattenrohlings bestimmt werden kann. Die Breite des Holzwerkstoffplattenrohlings ist dabei diejenige Erstreckung, die senkrecht zur Materialflussrichtung verlƤuft. GrundsƤtzlich ist es anzustreben, dass der Holzwerkstoffplattenrohling Ć¼ber seine komplette Breite einen mƶglichst geringen Temperaturgradienten aufweist. Wird der Temperaturgradient zu groƟ und damit die Temperaturdifferenz, variiert das Druckergebnis Ć¼ber die Breite der Holzwerkstoffplatte, was unerwĆ¼nscht ist.According to one embodiment of the invention, the temperature measuring device has at least three spatially-spaced temperature sensors and is configured to determine a temperature difference between at least two of the spaced temperature sensors and to generate a temperature difference alarm signal when the temperature difference is outside a predetermined temperature interval. Preferably, the temperature sensors are arranged so that the temperature difference across a width of the wood-based panel blank can be determined. The width of the wood-based panel blank is that extension which is perpendicular to the material flow direction. Basically, it is desirable that the wood-based panel blank over its entire width has the lowest possible temperature gradient. If the temperature gradient becomes too large and thus the temperature difference, the printing result varies over the width of the wood-based panel, which is undesirable.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform ist die Temperaturmessvorrichtung eingerichtet zum Bestimmen eines Temperaturverlaufs Ć¼ber die Breite des Holzwerkstoffplattenrohlings und zum Bestimmen einer maximalen Temperaturdifferenz zwischen zwei Orten entlang der Breitenerstreckung. Liegt die so errechnete Temperaturdifferenz auƟerhalb des vorgegebenen Temperaturdifferenz-Intervalls, wird beispielsweise ein Warnsignal ausgegeben. Alternativ oder zusƤtzlich wird eine in Materialflussrichtung vor der Temperaturmessvorrichtung angeordnete Komponente der Holzplatten-Herstellvorrichtung so angesteuert, dass die maximale Temperaturdifferenz verringert wird. Beispielsweise umfasst die Temperaturmessvorrichtung eine Thermokamera.According to a preferred embodiment, the temperature measuring device is configured to determine a temperature profile across the width of the wood-based panel blank and to determine a maximum temperature difference between two locations along the widthwise extension. If the calculated temperature difference is outside the predetermined temperature difference interval, a warning signal is output, for example. Alternatively or additionally, a arranged in the material flow direction in front of the temperature measuring device component of the wood panel manufacturing device is driven so that the maximum temperature difference is reduced. For example, the temperature measuring device comprises a thermal camera.

GemƤƟ einer zweiten erfindungsgemƤƟen AusfĆ¼hrungsform ist der Trockner ausgebildet zum lokalen ErwƤrmen des Holzwerkstoffplattenrohlings und so mit der Temperaturmessvorrichtung verbunden, dass die Temperaturdifferenz verminderbar ist. Beispielsweise kann der Trockner mit Warmluft betrieben sein und mehrere AustrittsdĆ¼sen aufweisen, durch die warme Luft ausstrƶmt. Wird nun beispielsweise detektiert, dass die rechte Kante des Holzwerkstoffplattenrohlings zu kalt ist, kann die DĆ¼se Ć¼ber dieser Kante weiter geƶffnet werden, sodass mehr heiƟe Luft auf den Holzwerkstoffplattenrohling gelangt und diesen daher stƤrker erwƤrmt. Auf diese Weise wird die Temperaturdifferenz vermindert. Alternativ oder zusƤtzlich kann die Temperatur der Luft verƤndert werden.According to a second embodiment of the invention, the dryer is adapted to locally heat the wood-based panel blank and connected to the temperature measuring device such that the temperature difference is reducible. For example, the dryer can be operated with hot air and have a plurality of outlet nozzles through which warm air flows. If, for example, it is detected that the right-hand edge of the wood-based panel blank is too cold, the nozzle can be opened further beyond this edge, so that more hot air is released the wooden material plate blank passes and therefore more heated. In this way, the temperature difference is reduced. Alternatively or additionally, the temperature of the air can be changed.

In anderen Worten ist es besonders gĆ¼nstig, wenn die Temperaturmessvorrichtung ausgebildet ist zum Bestimmen eines Temperaturverlaufs Ć¼ber die Breite des Holzwerkstoffplattenrohlings, wobei der Trockner mit der Temperaturmessvorrichtung verbunden und eingerichtet ist zum ErwƤrmen des Holzwerkstoffplattenrohlings, sodass der Temperaturverlauf mƶglichst wenig von einem Soll-Temperaturverlauf abweicht. In aller Regel wird der Soll-Temperaturverlauf eine gleichmƤƟige Temperatur Ć¼ber die volle Breite des Holzwerkstoffplattenrohlings sein.In other words, it is particularly advantageous if the temperature measuring device is designed to determine a temperature profile over the width of the wood-based panel blank, wherein the dryer is connected to the temperature measuring device and is adapted to heat the wood-based panel blank so that the temperature profile deviates as little as possible from a desired temperature profile. In general, the target temperature profile will be a uniform temperature over the full width of the wood-based panel blank.

GemƤƟ einer bevorzugten AusfĆ¼hrungsform umfasst die Holzplatten-Herstellanlage eine Temperiereinheit, die ausgebildet ist zum Bringen des Holzwerkstoffplattenrohlings zumindest an seiner OberflƤche auf eine vorgegebene Einlauf-Temperatur und/oder zum Bringen des Holzwerkstoffplattenrohlings zumindest an seiner OberflƤche auf eine vorgegebene Einlauf-Temperatur-Verteilung. Mittels einer solchen Temperiereinheit kƶnnen unerwĆ¼nschte Temperatur-Abweichungen, die der Holzwerkstoffplattenrohling nach Verlassen der Grundiereinheit hat, ausgeglichen werden, sodass die Einlauf-Temperatur und/oder der Einlauf-Temperaturverlauf zeitlich konstant sind. Unter dem Merkmal, dass die Einlauf-Temperatur zeitlich konstant ist, wird eine technische Konstanz verstanden, das heiƟt, dass Temperaturschwankungen zwar unvermeidlich sind, ein vorgegebene Soll-Intervall aber nicht verlassen.According to a preferred embodiment, the wood panel manufacturing plant comprises a tempering unit, which is designed for bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature and / or bringing the wood-based panel blank at least on its surface to a predetermined inlet temperature distribution. By means of such a temperature control unit, undesired temperature deviations that the wood-based panel blank has after leaving the primer unit can be compensated so that the inlet temperature and / or the inlet temperature profile are constant over time. Under the feature that the inlet temperature is constant over time, a technical constancy is understood, that is, that temperature fluctuations are unavoidable, but do not leave a predetermined target interval.

Vorzugsweise umfasst die Temperiereinheit lokal wirksame WƤrmeaufbringelemente, mittels derer zumindest die OberflƤche des Holzwerkstoffplattenrohlings auf eine vorgegebene Einlauf-Temperatur erwƤrmbar ist. Beispielsweise sind die WƤrmeaufbringelemente WƤrmestrahlelemente oder Warmluftquellen zum Abgeben von warmer Luft.Preferably, the tempering unit comprises locally effective heat-applying elements, by means of which at least the surface of the wood-based panel blank can be heated to a predetermined inlet temperature. For example, the heat application elements are heat radiating elements or hot air sources for discharging warm air.

Alternativ oder zusƤtzlich umfasst die Temperiereinheit lokal wirksame KĆ¼hlelemente, mittels derer zumindest die OberflƤche des Holzwerkstoffplattenrohlings lokal auf die vorgegebene Einlauf-Temperatur kĆ¼hlbar ist. Beispielsweise sind die KĆ¼hlelemente Kaltgasquellen zum Abgeben eines kĆ¼hlenden Gases, insbesondere Luft.Alternatively or additionally, the tempering unit comprises locally effective cooling elements by means of which at least the surface of the wood-based panel blank can be cooled locally to the predetermined inlet temperature. For example, the cooling elements are cold gas sources for discharging a cooling gas, in particular air.

Unter dem Merkmal, dass ein WƤrmeaufbringelement oder KĆ¼hlelement lokal wirksam ist, wird insbesondere verstanden, dass der Holzwerkstoffplattenrohling mittels der WƤrmeaufbringelemente auf einem Breitenabschnitt von hƶchstens einem Drittel seiner Breite so erwƤrmbar oder kĆ¼hlbar ist, dass eine so bewirkte TemperaturƤnderung in diesem Breitenabschnitt zumindest das Doppelte einer TemperaturƤnderung in einem benachbarten Breitenabschnitt betrƤgt.By the feature that a heat application element or cooling element is locally effective, is in particular understood that the wood material plate blank by means of WƤrmeaufbringelemente on a width portion of at most one third of its width is heated or cooled so that a temperature change caused in this width section at least twice Temperature change in an adjacent width section is.

Im Folgenden wird die Erfindung anhand der beigefĆ¼gten Zeichnungen nƤher erlƤutert. Dabei zeigt

Figur 1
einen Ablaufplan einer erfindungsgemƤƟen Holzplatten-Herstellanlage.
In the following the invention will be explained in more detail with reference to the accompanying drawings. It shows
FIG. 1
a flow chart of a wood panel manufacturing plant according to the invention.

Figur 1 zeigt schematisch eine Holzplatten-Herstellanlage 10, die eine Holzwerkstoffplattenrohling-Herstellvorrichtung 12 und eine Digitaldruckvorrichtung 14 umfasst. In einer Materialflussrichtung R hinter der Holzwerkstoffplattenrohling-Herstellvorrichtung 12 ist ein Lager 16 angeordnet, in dem die Holzwerkstoffplattenrohlinge 18.1, 18.2, ... zwischengelagert werden. In Materialflussrichtung R hinter dem Lager 16 ist eine Schleifanlage 20 angeordnet, mittels der die Holzwerkstoffplattenrohlinge 18 an zumindest einer Seite geschliffen werden. So wird eine reproduzierbar ebene OberflƤche erhalten. FIG. 1 schematically shows a wood board manufacturing plant 10, which comprises a wood material board blank manufacturing device 12 and a digital printing device 14. In a material flow direction R behind the wood material board blank manufacturing device 12, a bearing 16 is arranged, in which the wood material board blanks 18.1, 18.2, ... are stored. In the material flow direction R behind the bearing 16, a grinding system 20 is arranged, by means of which the wood material board blanks 18 are ground on at least one side. Thus, a reproducible level surface is obtained.

In Materialflussrichtung R hinter der Schleifanlage 20 ist eine Grundiervorrichtung 22 angeordnet, die beispielsweise eine Auftragswalze 24 umfasst, mittels der ein pigmentiertes Kunstharz 26,das Ć¼ber eine ZufĆ¼hrung 28 zugefĆ¼hrt wird, auf den Holzwerkstoffplattenrohling 18 aufgebracht wird. Hinter der Auftragswalze 24 ist ein Trockner 30 angeordnet.In the material flow direction R behind the grinding system 20, a priming device 22 is arranged, which comprises, for example, an applicator roll 24, by means of which a pigmented synthetic resin 26, which is supplied via a feed 28, is applied to the wood material board blank 18. Behind the applicator roll 24, a dryer 30 is arranged.

Im Teilbild unten ist ein Schnitt gemƤƟ der Linie A-A angeordnet. Es ist zu erkennen, dass der Trockner 30 eine Mehrzahl an Heizelementen 32.1, 32.2, ... umfasst, die entlang einer Breitenerstreckung B des Holzwerkstoffplattenrohlings 18 angeordnet sind. Jedes Heizelement 32 (Bezugszeichen ohne ZƤhlsuffix beziehen sich jeweils auf alle entsprechenden Objekte) ist individuell in seiner Heizleistung und/oder seiner Temperatur steuerbar oder regelbar, sodass eine Temperatur T des Holzwerkstoffplattenrohlings 18 an seiner OberflƤche O in AbhƤngigkeit von einer Querkoordinate y, die entlang der Breite B verlƤuft, verƤnderbar ist.In the drawing below, a section along the line A-A is arranged. It can be seen that the dryer 30 comprises a plurality of heating elements 32.1, 32.2,..., Which are arranged along a width extension B of the wood material board blank 18. Each heating element 32 (reference numerals without counting suffix refer to all corresponding objects) is individually controlled in its heating power and / or its temperature, so that a temperature T of the wood-based panel blank 18 on its surface O as a function of a transverse coordinate y, along the Width B runs, is changeable.

In Materialflussrichtung R hinter dem Trockner 30 kann eine Temperiereinheit 31 angeordnet sein, die lokal wirksame KĆ¼hlelemente 33.1, 33.2, 33.3 ... aufweist, mittels derer zumindest die OberflƤche O des Holzwerkstoffplattenrohlings 18 lokal auf eine vorgegebene Temperatur T(y) kĆ¼hlbar ist. Das ist im Teilbild zum Schnitt D-D gezeigt. Beispielsweise sind die KĆ¼hlelemente 33 GeblƤse zum Abgeben eines gerichteten KĆ¼hlgasstroms aus einem KĆ¼hlgas 35, beispielsweise Luft, auf die OberflƤche O. Es ist mƶglich, dass dazu Umgebungsluft verwendet wird, die meist ungekĆ¼hlt verwendet werden kann.In the material flow direction R behind the dryer 30, a temperature control unit 31 be arranged locally effective cooling elements 33.1, 33.2, 33.3 ..., by means of which at least the surface O of the wood material board blank 18 locally to a predetermined temperature T (y) is coolable. This is shown in the partial image for section DD. For example, the cooling elements 33 are blowers for discharging a directed flow of cooling gas from a cooling gas 35, for example air, to the surface O. It is possible that ambient air is used for this, which can be used mostly uncooled.

Es ist mƶglich, dass der Trockner 30 nicht zum Einstellen einer lokalen Temperatur ausgebildet ist. In diesem Fall kann die Temperiereinheit 31 neben den KĆ¼hlelementen 33 die Heizelemente 32 aufweisen. SelbstverstƤndlich ist es mƶglich, dass die Temperiereinheit 31 nur KĆ¼hlelemente oder nur Heizelemente aufweist.It is possible that the dryer 30 is not designed to set a local temperature. In this case, the temperature control unit 31 can have the heating elements 32 in addition to the cooling elements 33. Of course, it is possible that the temperature control unit 31 has only cooling elements or only heating elements.

Durch das ErwƤrmen und/oder KĆ¼hlen ergibt sich eine Temperatur-Verteilung T(y), die so gewƤhlt ist, dass sich am Ort eines Druckkopfs 15 der Digitaldruckvorrichtung 14 eine vorgegebene Einlauf-Temperatur T14 oder ein vorgegebener Einlauf-Temperaturverlauf T14(y) einstellt. Wie die Temperatur-Verteilung T(y) einzustellen ist, so dass sich der vorgegebene Einlauf-Temperaturverlauf T14(y) ergibt, wird in Vorversuchen ermittelt. In der Regel wird als Einlauf-Temperaturverlauf T14(y) eine mƶglichst gleichmƤƟige Temperatur fĆ¼r alle y-Positionen angestrebt.By heating and / or cooling results in a temperature distribution T (y), which is selected so that at the location of a print head 15 of the digital printing device 14, a predetermined inlet temperature T 14 or a predetermined inlet temperature profile T 14 (y ). As the temperature distribution is set T (y), so that the predetermined inlet temperature curve T 14 (y) results, it is determined in preliminary experiments. As a rule, the intake temperature course T 14 (y) is aimed at as uniform a temperature as possible for all y-positions.

In Materialflussrichtung R hinter dem Trockner 30 ist die Digitaldruckvorrichtung 14 angeordnet. In Materialflussrichtung R vor der Digitaldruckvorrichtung 14 befindet sich eine Temperaturmessvorrichtung 34. Die Temperaturmessvorrichtung 34 umfasst zumindest einen Temperatursensor 36, im vorliegenden Fall besitzt die Temperaturmessvorrichtung 34 mehrere Temperatursensoren 36.1, 36.2, .... Mittels der Temperatursensoren 36 kann die Temperatur T ortsaufgelƶst bezĆ¼glich einer Breitenerstreckung des Holzwerkstoffplattenrohlings 18 gemessen werden, wie im unteren Teilbild schematisch dargestellt ist. Bei den Temperatursensoren 36 handelt es sich vorzugsweise um berĆ¼hrungslos arbeitende Infrarotsensoren, die die WƤrmestrahlung des Holzwerkstoffplattenrohlings 18, die durch die Pfeile schematisch angedeutet ist, detektieren.In the material flow direction R behind the dryer 30, the digital printing device 14 is arranged. In the material flow direction R in front of the digital printing device 14 is a temperature measuring device 34. The temperature measuring device 34 includes at least one temperature sensor 36, in the present case, the temperature measuring device 34 has a plurality of temperature sensors 36.1, 36.2, .... By means of the temperature sensors 36, the temperature T spatially resolved with respect to a Breitenerstreckung the wood material plate blank 18 are measured, as shown schematically in the lower part of the figure. The temperature sensors 36 are preferably non-contact infrared sensors, the heat radiation of the wood-based panel blank 18, by the arrows schematically is indicated, detect.

Die Holzplatten-Herstellanlage 10 umfasst eine Ansteuereinheit 38, die mit der Temperaturmessvorrichtung 34 und der Digitaldruckvorrichtung 14 verbunden ist. Die Ansteuereinheit 38 liest die Temperatursensoren 36.1, 36.2, ... 36.n aus, wobei n eine natĆ¼rliche Zahl ist. Aus den ausgelesenen Temperaturen T(xi) mit i=1,2,..., n wird eine Einlauftemperatur T14 berechnet, beispielsweise durch Bilden des arithmetischen Mittelwerts. Sofern die Temperaturmessvorrichtung 34 nur einen Temperatursensor 36 aufweist, ist die von diesem Temperatursensor gemessene Temperatur T gleich der Einlauf-Temperatur T14, wenn der Abstand zwischen der Temperaturmessvorrichtung 34 und dem Ort, an dem der Holzwerkstoffplattenrohling 18 bedruckt wird, hinreichend klein ist.The wood board manufacturing facility 10 includes a drive unit 38 that is connected to the temperature measurement device 34 and the digital printing device 14. The drive unit 38 reads the temperature sensors 36.1, 36.2,... 36.n, where n is a natural number. From the read temperatures T (xi) with i = 1,2, ..., n, an inlet temperature T 14 is calculated, for example by forming the arithmetic mean. If the temperature measuring device 34 has only one temperature sensor 36, the temperature T measured by this temperature sensor is equal to the inlet temperature T 14 when the distance between the temperature measuring device 34 and the location at which the wood-based panel blank 18 is printed is sufficiently small.

Liegt die Temperatur T fĆ¼r einen oder mehrere der Temperatursensoren 36 unterhalb einer vorgegebenen Soll-Temperatur TSoll, so steuert die Ansteuereinheit 38, die auch mit dem Trockner 30 verbunden ist, die Heizelemente 32 so an, dass die Temperatur T des Holzwerkstoffplattenrohlings 18 sich zumindest an den Stellen erhƶht, an denen die Temperatur zu niedrig ist. Umfasst die Temperaturmessvorrichtung 34 nur einen Temperatursensor oder umfasst die Temperaturmessvorrichtung 34 mehrere Temperatursensoren, die jedoch nicht ortsaufgelƶst messen, so kann der Trockner 30 nur ein Heizelement aufweisen, beispielsweise ein HeiƟluftgeblƤse.If the temperature T for one or more of the temperature sensors 36 below a predetermined target temperature T Soll , so controls the drive unit 38, which is also connected to the dryer 30, the heating elements 32 so that the temperature T of the wood-based panel blank 18 at least increased at the points where the temperature is too low. If the temperature measuring device 34 comprises only one temperature sensor or if the temperature measuring device 34 comprises a plurality of temperature sensors, which however do not measure spatially resolved, then the dryer 30 can have only one heating element, for example a hot air blower.

Die Ansteuereinheit 38 ist zudem mit der Digitaldruckvorrichtung 14 verbunden. Liegt die Einlauf-Temperatur T14 auƟerhalb eines vorgegebenen Soll-Intervalls I=[Tmin, Tmax] mit der vorgegebenen Minimaltemperatur Tmin und der vorgegebenen Maximal-Temperatur Tmax, so wird das Drucken unterbrochen, sodass das Aufbringen von Tinte 40 unterbrochen wird und der Holzwerkstoffplattenrohling 18 unbedruckt bleibt.The drive unit 38 is also connected to the digital printing device 14. If the inlet temperature T 14 is outside a predetermined set interval I = [T min , T max ] with the predetermined minimum temperature T min and the predetermined maximum temperature T max , the printing is interrupted so that the application of ink 40 is interrupted is and the wood-based panel blank 18 remains unprinted.

In Materialflussrichtung R hinter der Digitaldruckvorrichtung 14 ist eine Trockenvorrichtung 42 angeordnet, mittels der die Tinte und die Grundierung getrocknet werden. Danach werden die entstandenen Holzwerkstoffplatten in einem Lager 44 gelagert und danach, in einer Beschichtungsanlage 46 beispielsweise mittels der FlĆ¼ssig-Overlay-Technologie mit einer Abrasionsschutzschicht endbeschichtet, so dass eine fertige Holzwerkstoffplatte 48 entsteht. Bezugszeichenliste 10 Holzwerkstoffplatten-Herstellanlage B Breite 12 Holzwerkstoffplattenrohling-Herstellvorrichtung I Soll-Intervall n natĆ¼rliche Zahl 14 Digitaldruckvorrichtung R Materialflussrichtung 15 Druckkopf O OberflƤche 16 Lager 18 Holzwerkstoffplattenrohling T Temperatur T14 Einlauf-Temperatur 20 Schleifanlage TSoll Solltemperatur 22 Grundiervorrichtung 24 Auftragsvolumen 26 Kunstharz 28 ZufĆ¼hrung 30 Trockner 31 Temperiereinheit 32 Heizelement 34 Temperaturmessvorrichtung 35 KĆ¼hlgas 36 Temperatursensor 38 Ansteuereinheit 40 Tinte 42 Trockenvorrichtung 44 Lager 46 Beschichtungsanlage 48 Holzwerkstoffplatte In the material flow direction R behind the digital printing device 14 is a drying device 42, by means of which the ink and the primer are dried. Thereafter, the resulting wood-based panels are stored in a bearing 44 and then, in a coating system 46, for example by means of the liquid overlay technology with an abrasion protective layer finished, so that a finished wood-based panel 48 is formed. <B> LIST OF REFERENCES </ b> 10 Wood-based panels-building facility B width 12 Wood panel blank making device I Target interval n natural number 14 Digital printing device R Material flow direction 15 printhead O surface 16 camp 18 Wood panel blank T temperature T 14 Inlet temperature 20 grinding machine T target set temperature 22 Grundiervorrichtung 24 order volume 26 resin 28 feed 30 dryer 31 temperature control 32 heating element 34 Temperature measuring device 35 cooling gas 36 temperature sensor 38 control unit 40 ink 42 dryer 44 camp 46 coating plant 48 Wood panel

Claims (9)

  1. A wood material board production installation for producing a wood material board (48), in particular a high density fiberboard with,
    (a) a wood material board workpiece production device (12) for producing a wood material board workpiece (18),
    (b) a digital printing device (14) for printing the wood material board workpiece (18), and
    (c) a temperature measurement device (34) that is disposed to determine an entering temperature (T14) of the wood material board workpiece (18) during printing
    characterized by the fact that
    (d) the temperature measurement device (34)
    - comprises at least three temperature sensors (36.1, 36.2, 36.3) that are placed at a distance from one another and
    - is installed to determine a temperature difference and to generate a temperature difference warning signal if the temperature difference lies outside of a predetermined temperature difference interval and/or
    (e) a dryer (30) is designed to locally heat up the wood material board workpiece (18) and is connected to the temperature measurement device (34) in such a way that the temperature difference can be reduced.
  2. The wood material board production installation according to claim 1, characterized by the fact that
    - the wood material board workpiece production device (12) comprises a priming device (22) for priming the wood material board workpiece (18), the priming device (22) having a dryer (30), and that
    - the temperature measurement device (34) is connected to the dryer (30) for the regulation of a drying temperature (T) such that the entering temperature (T14) can be set by altering the drying temperature.
  3. The wood material board production installation according to one of the above claims, characterized by a control unit (38) that
    - is connected to the temperature measurement device (34) and the digital printing device (14) and
    - is installed to automatically generate a temperature warning signal if the entering temperature (T14) lies outside of a predetermined target interval (I) and/or to automatically interrupt the printing if the entering temperature (T14) lies outside of a predetermined target interval (I).
  4. The wood material board production installation according to one of the above claims, characterized by a temperature control unit (31) that is designed to bring the wood material board (18) to a predetermined temperature (T) and/or a predetermined temperature distribution (T(y)), at least on its surface (O).
  5. The wood material board production installation according to claim 4, characterized by the fact that the temperature control unit (31) comprises locally effective heating elements (32), by means of which at least the surface (O) of the wood material board workpiece (18) can be locally heated to a predetermined temperature (T).
  6. The wood material board production installation according to claim 4 or 5, characterized by the fact that the temperature control unit (31) comprises locally effective cooling elements (33), by means of which at least the surface (O) of the wood material board workpiece (18) can be locally cooled to the predetermined temperature (T).
  7. A method for producing a wood material board (48), in particular a high density fiberboard, featuring the steps:
    (i) production of a wood material board workpiece (18),
    (ii) printing of the wood material board workpiece with a decoration,
    (iii) determination of an entering temperature (T14) of the wood material board workpiece (18) prior to printing and
    (iv) generation of a temperature warning signal if the entering temperature (T14) lies outside of a predetermined target interval (I),
    characterized by the steps:
    (v) determination of a temperature difference at locations placed at a distance from one another with regards to a transverse direction that runs perpendicular to a direction of material flow (R) and regulation of a local distribution of the drying temperature (T) so that the temperature difference lies in a predetermined temperature difference interval and/or
    (vi) priming of the wood material board workpiece before printing the wood material board workpiece (18), said priming comprising drying at a drying temperature (T) and regulation of the drying temperature so that the entering temperature (T14) lies in the target interval (I).
  8. The method according to claim 7, characterized by the fact that the printing is interrupted if the entering temperature (T14) lies outside of a predetermined target interval (I).
  9. The method according to one of the claims 7 or 8, characterized by the step:
    priming of the wood material board workpiece before printing the wood material board workpiece (18), said priming comprising drying at a drying temperature (T) and regulation of the drying temperature so that the entering temperature (T14) lies in the target interval (I).
EP15701673.4A 2014-04-02 2015-01-22 Wood material board production assembly and method for manufacturing a wood material board Active EP3013589B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15701673.4A EP3013589B1 (en) 2014-04-02 2015-01-22 Wood material board production assembly and method for manufacturing a wood material board
PL15701673T PL3013589T3 (en) 2014-04-02 2015-01-22 Wood material board production assembly and method for manufacturing a wood material board

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14163278.6A EP2927003B1 (en) 2014-04-02 2014-04-02 Wood material board production assembly and method for manufacturing a wood material board
PCT/EP2015/000115 WO2015149894A1 (en) 2014-04-02 2015-01-22 Engineered wood board production installation and method for producing an engineered wood board
EP15701673.4A EP3013589B1 (en) 2014-04-02 2015-01-22 Wood material board production assembly and method for manufacturing a wood material board

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EP3013589A1 EP3013589A1 (en) 2016-05-04
EP3013589B1 true EP3013589B1 (en) 2017-06-28

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US (1) US9796194B2 (en)
EP (2) EP2927003B1 (en)
ES (2) ES2570733T3 (en)
PL (2) PL2927003T3 (en)
RU (1) RU2677704C2 (en)
UA (1) UA118119C2 (en)
WO (1) WO2015149894A1 (en)

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EP3181313B1 (en) 2015-12-18 2020-03-18 SWISS KRONO Tec AG Method for manufacturing of wood panels and wood panel manufacturing device
HUE059477T2 (en) * 2016-09-07 2022-11-28 SWISS KRONO Tec AG Wood material panel hot press and method for operating a wood material panel hot press
EP3960479B8 (en) 2020-08-24 2023-07-12 SWISS KRONO Tec AG Method for printing the surface of a workpiece with decoration and device therefor
CN116197981A (en) * 2023-02-03 2023-06-02 ęƒ å·žåø‚ę‘©å½©č£…é„°ęę–™ęœ‰é™å…¬åø Preparation method of UV semi-open coating plate for digital printing of wood skin textures
EP4488066A1 (en) 2023-07-07 2025-01-08 SWISS KRONO Tec AG Method and device for printing a plate-shaped workpiece

Family Cites Families (5)

* Cited by examiner, ā€  Cited by third party
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US6022104A (en) 1997-05-02 2000-02-08 Xerox Corporation Method and apparatus for reducing intercolor bleeding in ink jet printing
DE102006007976B4 (en) * 2006-02-21 2007-11-08 Flooring Technologies Ltd. Process for refining a building board
DE102008008292A1 (en) * 2008-02-07 2009-08-13 hĆ¼lsta-werke HĆ¼ls GmbH & Co KG Paper layer for producing a flat, printed or printable component
EP2226201B1 (en) * 2009-03-04 2012-11-21 Flooring Technologies Ltd. Method and assembly for producing a wood fibre board
EP2301762B9 (en) * 2010-03-11 2013-12-25 Flooring Technologies Ltd. Method and a device for applying a structure to a composite wood board

Non-Patent Citations (1)

* Cited by examiner, ā€  Cited by third party
Title
None *

Also Published As

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RU2016138817A (en) 2018-05-04
ES2570733T3 (en) 2016-05-20
ES2641208T3 (en) 2017-11-08
UA118119C2 (en) 2018-11-26
US9796194B2 (en) 2017-10-24
US20170087892A1 (en) 2017-03-30
EP2927003A1 (en) 2015-10-07
PL2927003T3 (en) 2016-08-31
RU2016138817A3 (en) 2018-07-09
EP3013589A1 (en) 2016-05-04
PL3013589T3 (en) 2018-02-28
RU2677704C2 (en) 2019-01-21
WO2015149894A1 (en) 2015-10-08
EP2927003B1 (en) 2016-03-30

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