EA040757B1 - METHOD AND DEVICE FOR MANUFACTURING PLATE INTENDED FOR MANUFACTURING PANELS, PLATE FOR MANUFACTURING PANELS, METHOD AND DEVICE FOR MANUFACTURING PANELS AND PANEL PRODUCED BY THIS METHOD - Google Patents

Description

The present invention relates to a method for manufacturing a board for making panels. The method includes the steps of obtaining a particulate material containing or consisting of a wood particulate material, manufacturing a glued particulate wood material by adding glue to the particulate wood material, forming a carpet from the spread material by uniformly distributing the particulate material on a conveyor, on which the distributed glued particulate material is transported to direction of transport, and obtaining a board by pressing a carpet from the material to be distributed during transport on a conveyor. In addition, the reinforcing material is added to the spread bonded particulate material perpendicular to the conveyance direction during the formation of the spread material mat and/or after the spread material mat is formed before any pressing of the spread material mat such that the spread material mat has at least one a longitudinal hardened zone containing a reinforcing material. Using the proposed method, plates can be obtained from which panels with reinforced longitudinal and/or transverse edges can be made. The present invention also relates to a device for making a board for making panels, to a board for making panels, to a method for making a spread material carpet, to a spread material carpet made by this method, to a method and apparatus for making panels, to a panel made in this way. way, and to the application of the panel.

According to the state of the art, wood-based material panels such as medium or high density fiber boards (MDF, HDF) are mainly produced by distributing a glued wood fiber carpet evenly on a conveyor belt, to obtain a fiber carpet, compressing the fiber carpet in a continuous press, in which the adhesive or resin is then also cured at elevated temperatures, thus obtaining a large or endless slab (HDF/MDF). EP 2125312 discloses an example of a material distribution plant for the distribution part of this process. The slab is then covered with a system of decorative and wear-resistant layers, while tracing and sound-absorbing insulating layers can also be added to such slabs. The boards are then cut into panels of the desired size and then the locking profiles such as tongues and grooves are machined, for example milled on the longitudinal (and/or transverse) edges of the panels.

Panels obtained through this manufacturing process consist of the same base material throughout the entire panel. However, the milled edges of the profile must withstand much higher mechanical loads than the rest of the panel. Thus, during long-term use, such profile and corner elements at the edges of the panel tend to break off. In addition, water (or moisture and humidity) from spills or wet cleaning tends to accumulate in such profiles and corners at the edges of the panel, so swelling can occur there as the water is adsorbed into the core of the panel.

It is known from the prior art that the improvement in the quality of the material of the profiles is to add more (rather expensive) glue/resin to the entire board. WO 2015/169647 discloses a method for the production of wood composite (PVC) material. EP 2397291 discloses the addition of an expandable and settable mass to a conventional manufacturing process to improve strength and moisture resistance. EP 2146024 discloses floor panels with sealing and reinforcement means.

However, when the adhesive is added to the entire board, a very large amount of adhesive is required, which leads to the disadvantage that the production cost of the boards and panels is greatly increased.

Thus, methods have been developed in which a structured substance or a strengthening agent is added only to the edge area of the wood board (EP 214762 B1, EP 2628580 B1). In addition, in EP 3 184 272 A2, the substance is pressed into partial areas of the pre-compressed mass of wood fibers using a pressure generator to generate overpressure. In addition, EP 2 241 426 A1 describes a process in which a pre-compressed pulp is subjected to a vacuum and, at the same time, an impregnating medium is added to the pulp, which is distributed in individual areas of the pulp as a result of the vacuum.

However, all these methods have a number of disadvantages. First, overpressure or vacuum must be used to introduce and distribute the strengthening agent in the pulp. However, such excess pressure or vacuum adversely affects the distribution of adhesive in the pulp, which can lead to lower strength of the board produced. In addition, when using excessive pressure or vacuum, it is impossible to evenly distribute the strengthening agent in precisely defined areas of the pulp. In other words, with these prior art methods, it is not possible to obtain a board with precisely defined hardened areas in which the hardening agent is uniformly distributed. In addition, when excessive pressure or vacuum is used to introduce and distribute a strengthening agent in the pulp (as in EP 3184272 A2 or EP 2241426 A1, for example), the pulp must be pre-compressed to avoid damaging or breaking the accumulated fibers from - due to excessive pressure or

- 1 040757 vacuum. Thus, an additional pre-compression step is needed, which makes the process more complicated, costly and time consuming. In addition, such a pre-compressed pulp (as well as already produced board) has a relatively low porosity. This relatively low porosity prevents penetration of the reinforcing agent into the pulp (or board) and hence also for this reason only a non-uniform distribution of the reinforcement in partial regions of the pulp (or board) is achieved. Since the non-uniform distribution of the reinforcing agent results in low mechanical strength of the hardened areas of the board being produced, the hardened areas of boards made by known methods have only low mechanical strength. Thus, the hardened edges of panels made from these boards also have low mechanical strength.

On this basis, the aim of the present invention is to provide a cost-effective and economical method for the manufacture of a board from which edge-reinforced panels can be produced, these edge-reinforced edges having improved mechanical strength.

This object is achieved by providing a method for manufacturing a board for making panels, the features of which are described in claim 1 of the claims, by providing a plate for making panels, the features of which are described in claim 18 of the claims, by providing a method for manufacturing a carpet from a spreadable material, the features of which are are described in claim 27 of the claims, thanks to the creation of a carpet from the distributed material, the features of which are described in claim 28 of the claims, thanks to the creation of a method for manufacturing panels, the features of which are described in claim 29 of the claims, thanks to the creation of a panel, the features of which are described in claim .32 of the claims, by providing a device for manufacturing at least one plate for making panels, the features of which are described in claim 36 of the claims, and by providing a device for making panels, the features of which are described in claim 44 of the claims. Paragraph 35 of the claims is directed to the use of the panel. Thus, the dependent claims suggest preferred modifications.

According to the invention, a method for manufacturing a board for manufacturing panels includes the following steps:

a) use of particulate material containing or consisting of wood particulate material,

b) production of a glued particulate material by adding glue to the particulate material,

c) forming a carpet of spreading material having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, by uniformly distributing the glued particulate material on the conveyor, on which the distributed glued particulate material is transported in the direction of transportation parallel to the longitudinal direction of the carpet of the spreading material, and the glued particulate material the material is distributed on the conveyor along the length of the distribution section extending in the conveying direction, so that in the conveying direction the distributed glued particulate material accumulates in the spreading material mat along the length of the distribution section,

d) production of a slab by pressing a carpet from the material to be distributed.

According to the invention, the reinforcing material is added to the spread glued particulate material perpendicular to the conveyance direction during the formation of the spread material mat and/or after the spread material mat is formed and before any pressing of the spread material mat, such that the spread material mat has at least one transverse reinforcing zone containing a reinforcing material.

The addition of the reinforcing material is carried out by spraying, spraying the reinforcing material onto the distributed glued particulate material and/or injecting the reinforcing material therein. In this way, it is possible to carry out an easy, quick and precise addition of the reinforcing material. In addition, the reinforcing material can be added when the distributed glued particulate material is continuously moved on the conveyor.

In step a) a particulate material is used. The particulate material comprises or consists of particulate wood material. Preferably the particulate material is a wood particulate material. The particulate material may further comprise non-wood material components such as particulate plastic. In general, the particulate material and the wood particulate material may be present in any form. It is also possible to use wood material and wood particulate material which is present in various forms. For example, wood fibers, wood strands, wood shavings, or a combination thereof can be used as the wood particulate material.

In step b), glue is added to the particulate material obtained in step a), and thus a glued particulate material is obtained. For example, the adhesive is mixed with the particulate material. As a rule, you can use any glue that is suitable for gluing wood materials. Prev

- 2 040757 respectfully glue is wood glue. For example, the adhesive is selected from the group consisting of urea-formaldehyde resins, resorcinol-formaldehyde resins, phenol-formaldehyde resins, polyurethane resins, epoxy resins, cyanoacrylates, polyvinyl acetates, methylenediphenyl diisocyanate resins, and mixtures thereof.

In step c) a carpet of the spread material is formed by evenly distributing the glued particulate material obtained in step b) on a conveyor on which the distributed glued particulate material is moved in the conveying direction. In this regard, the glued particulate material is distributed on the conveyor along the length of the distribution section passing in the conveying direction so that in the conveying direction the distributed glued particulate material is accumulated in the carpet of the spreading material along the length of the distribution section. Thus, a spreading material carpet is obtained by accumulating a glued particulate material. In this context, the distribution area is a local area in which the glued particulate material is distributed on the conveyor. The distribution section has a length extending in the conveying direction and a width preferably extending across the entire width of the conveyor.

The glued particulate material can be distributed continuously or intermittently on the conveyor. Thus, the distributed glued particulate material can be continuously or intermittently accumulated on the spread material carpet along the length of the distribution section. Preferably, the distributed glued particulate material is continuously transported in the transport direction.

The formed spreading material carpet has a longitudinal direction and a transverse direction perpendicular to the longitudinal direction of the spreading material carpet. In addition, the longitudinal direction of the spread material mat is parallel to the conveying direction, while the transverse direction of the spread material mat is perpendicular to the conveying direction.

The spreading material carpet has two longitudinal edges, i.e. two edges parallel to the longitudinal direction of the carpet. Due to the spreading process of the glued particulate material, the longitudinal edges of the spread material carpet may be uneven. However, between steps c) and d), the longitudinal edges of the spread material mat may be subjected to a cutting process, whereby the spread material carpet will have two even longitudinal edges.

According to the invention, the longitudinal direction of an object (e.g., spreading carpet, board, panel, etc.) is the direction of the long axis of the object, while the transverse direction of an object (e.g., spreading carpet, board, panel, etc.) .) is the direction of the object's short axis. The longitudinal edge of the object is an edge parallel to the longitudinal direction of the object, and the transverse edge of the object is an edge parallel to the transverse direction of the object.

In step d) the slab is made by pressing a mat of the spreadable material formed in step c). For example, pressing can be performed using a continuous belt press. Preferably, the pressing of the spread material occurs when the spread material mat is moved on a conveyor, for example on the conveyor used in step b). Alternatively, the pressing of the spread material mat can also be carried out when the spread material mat is not being transported.

According to the invention, the spreading material carpet has at least one transverse reinforced zone. In this context, the reinforced area is the area of the spread material carpet in which the reinforcing material is located. Said at least one transverse reinforcement zone is transverse, which means that said at least one transverse reinforcement zone is parallel to the transverse direction of the spread material carpet. Said at least one transverse hardened zone has two transverse edges, i. e. edges parallel to the transverse direction of the spreading carpet. Preferably, said at least one transverse reinforcement zone is in the form of a line, a strip or a strip, in particular a straight line, a straight strip or a straight strip.

The transverse reinforced zone may include a transverse cutting zone containing no reinforcing material, i. e. a transverse cutting zone in which no reinforcing material is present. When the board is cut in this cutting zone, a simplified cut of the board is possible, with the hardened zone located at the edges of the resulting panels.

The transverse hardened zone is only a zone, i.e. partial area of the carpet from the spreading material. In particular, the transverse reinforced has a limited dimension in the longitudinal direction of the spread material mat. In other words, the transverse reinforcement zone does not extend over the entire dimension of the spread material mat in its longitudinal direction. In other words, the size of the transverse reinforcement zone in the longitudinal direction of the spread material mat is smaller than the size of the spread material mat in its longitudinal direction.

Preferably, said at least one transverse hardened zone extends over the entire

- 3 040757 the width of the spreading mat, i.e. over the entire size of the spreading material carpet in its transverse direction.

Preferably, said at least one transverse hardened zone has a constant width, i. e. has a constant dimension in the longitudinal direction of the spreading mat.

Said at least one transverse reinforced zone is obtained by adding a reinforcing material to the spread glued particulate material perpendicular to the conveyance direction during the formation of a mat of the spread material, i. e. in step c), and/or by adding a reinforcing material to the spread glued particulate material perpendicular to the conveyance direction after forming a mat of the spread material, i. e. after step c) and before any pressing of the spreading mat.

Since the spread material carpet used in step d) thus has at least one transverse reinforcement zone containing the reinforcing material, so also does the board obtained by pressing the spread material carpet in step d) have at least one transverse hardened zone containing a reinforcing material.

The reinforcing material is added to the distributed bonded particulate material, i. e. the reinforcing material is added before step d) and thus before pressing the spread material carpet onto the board. In addition, the reinforcing material is added to the spread bonded particulate material during formation of the spread material mat and/or after formation of the spread material mat and prior to any pressing of the spread material mat.

In this context, any compression also includes any pre-compression, any compression, and any pre-compression. Thus, it is clear that the reinforcing material is added to the distributed bonded particulate material before any compression step, before any pre-compression step, before any compression step, and before any pre-compression step. In other words, the reinforcing material is added to the non-pressed (or non-pre-compressed) distributed bonded particulate material.

The specified at least one reinforcing material is added to the distributed glued particulate material perpendicular to the direction of transport. In other words, the reinforcing material is added to at least one predetermined zone of the distributed glued particulate material, this at least one predetermined zone being perpendicular to the conveyance direction. Since said at least one reinforced zone is the zone of the spread material carpet in which the reinforcing material is located, said at least one reinforced zone corresponds to said at least one predetermined zone.

Said at least one reinforcing material is added to the distributed glued particulate material when the distributed glued particulate material is transported along a conveyor.

It is essential according to the invention that the reinforcing material is applied to the spread glued particulate material during the formation of the spread material mat and/or after the spread material mat is formed and before any spread material mat is pressed.

Since in these steps of the method, i.e. before (any) pressing (i.e. also before any compression, any pre-compression, any pre-compression) of the spread material carpet, the spread material carpet has a high porosity, the reinforcing material can better penetrate into the spread material carpet and therefore more evenly distributed in hardened zones. Due to this uniform distribution, said at least one reinforced zone of the manufactured board can withstand a higher mechanical load, i.e. said at least one reinforced zone of the manufactured board has a higher mechanical strength. In addition, the panels can be made from the manufactured board by cutting the board in its transverse direction in said at least one transverse hardened zone. In this way, edge-hardened panels are obtained which can withstand higher mechanical loads, i.e. hardened edges have higher mechanical strength.

Thus, said at least one transverse reinforcement zone is preferably a predetermined zone in which the manufactured board is to be cut (in its transverse direction) into panels so that each of the resulting panels contains at least one reinforced edge.

Since the reinforcing material is added to the spread bonded particulate material during the formation of the spread material carpet and/or after the formation of the spread material carpet and before any pressing of the spread material carpet

- 4 040757 spreading material, it is possible to precisely add the reinforcing material, i.e. even distribution of the reinforcing material is possible in precisely defined areas of the distributed glued particulate material. In other words, using the proposed method, it is possible to obtain a board with one or more precisely defined hardened areas in which the hardening agent is uniformly distributed.

Moreover, in the proposed method, the use of excess pressure or vacuum to distribute the already added reinforcing material is not necessary, which makes this method less complicated than methods known from the prior art. In addition, it is possible to avoid the negative effect of vacuum or overpressure on the distribution of adhesive in the board and thus on the strength of the produced board, which is the result of such a bad effect.

In addition, the proposed method does not require an additional pre-compression step to pre-compress (or pre-compress) the carpet of the material to be distributed. Thus, one complete process step can be saved compared to the methods known in the prior art. Therefore, the proposed method is more cost effective, more time saving and less complicated.

Since the reinforcing material is not added over the entire dimension of the spread material carpet in its longitudinal direction, but only within one or more reinforced zones, only a small amount of reinforcing material is required, and therefore, also for this reason, the proposed method is more cost-effective than others. methods known from the prior art.

Since the reinforcing material is added perpendicular to the conveying direction within one or more transverse reinforced zones, the addition of the reinforcing material can be easily performed when the distributed glued particulate material is transported along the conveyor. Thus, the addition of a reinforcing material can be easily integrated into a fully continuous board manufacturing process. Therefore, also for this reason, the proposed method saves time.

On this basis, the proposed method is a cost-effective and time-saving method for the manufacture of a board from which edge-reinforced panels can be produced, these edge-reinforced edges having increased mechanical strength.

Particularly preferably, a reinforcing material is added to the spread glued particulate material perpendicular to the direction of transport during the formation of a carpet from the spread material. Thus, the reinforcing material can be added directly to the central areas of the carpet for subsequent distribution or between the individual layers of glued particulate material. In this way, an even better and even more uniform distribution of the reinforcing material in the hardened zones can be achieved, resulting in a higher mechanical strength of the hardened zones of the manufactured board and thus also a higher mechanical strength of the reinforced edges of panels made from such a board.

A preferred embodiment of the proposed method is characterized in that the reinforcing material is added to the spread glued particulate material perpendicular to the direction of transport during the formation of a carpet of the spread material and/or after the formation of the carpet of the spread material and before pressing the carpet of the spread material, so that the carpet of the spread material has several transverse hardened zones, which are preferably located at the same distance from each other.

Together, the transverse reinforcement zones do not extend over the entire dimension of the spread material mat in its longitudinal direction. In other words, the sum of the dimensions of the transverse reinforcement zones in the longitudinal direction of the spread material mat is less than the size of the spread material mat in its longitudinal direction. Since each of the transverse reinforcement zones is parallel to the transverse direction of the spread material carpet or board, all of the transverse reinforcement zones are parallel to each other.

Preferably, each transverse reinforcement zone extends over the full width of the spread material mat, i. e. over the entire size of the spreading material carpet in its transverse direction.

Preferably, each of the transverse hardened zones has a constant width, i. e. constant dimension in the longitudinal direction of the spreading material carpet.

For example, a reinforcing material is added to the spread bonded particulate material perpendicular to the conveyance direction during the formation of the spread material mat and/or after the spread material mat is formed and prior to any pressing of the spread material mat such that the spread material mat has three, four or five transverse

- 5 040757 hardened zones.

Preferably, the transverse hardened zones are located at the same distance from each other. This means that the distance between each pair of adjacent transverse hardened zones is the same. In this context, the distance between the first and second longitudinal reinforcement zone is the shortest distance between the transverse center line of the first transverse reinforcement zone and the transverse center line of the second transverse reinforcement zone, the transverse center line of the reinforcement zone being a line parallel to the transverse direction of the spreading mat and which located at the same distance from the two transverse edges of the hardened zone. In this regard, the transverse edge of the transverse reinforced zone is an edge parallel to the transverse direction of the spread material mat.

For example, if a spreadable carpet or slab has three transverse reinforcement zones that are equidistant from each other, with the second zone between the first zone and the third zone, then the distance between the first zone and the second zone will be equal to the distance between the second zone and the third zone, i.e. the distance between the first zone transverse center line and the second zone transverse center line will be equal to the distance between the second zone transverse center line and the third zone transverse center line.

Thus, it is preferable that the distance between the two transverse hardened zones remains constant during the entire time of manufacture. In addition, it is preferable that this constant distance be synchronized with the potential cross-cuts with which the slab is cut into panels. This can be achieved either by simply measuring the distance traveled by the conveyor, or by adding a detectable marker at the injection position. In this way, a simple automatic cutting of the board can be performed, while it can be ensured that the hardened zones are located along the edges of the panels made from the obtained board, and thus these panels have the hardened edges.

In another preferred embodiment, the size of said at least one transverse reinforcement zone in the longitudinal direction of the spread material carpet is 6 to 140 mm, preferably 12 to 90 mm, more preferably 20 to 50 mm.

In addition, preferably, said at least one third transverse reinforced zone has two transverse (outer) edges that are parallel to the transverse direction of the spread material carpet, while said at least one transverse reinforced zone contains two transverse reinforced subzones containing reinforcing material, and one longitudinal cutting zone, which does not contain a reinforcing material and which is located between two transverse hardened subzones so that the distance to both transverse (outer) edges from said at least one transverse hardened zone is the same. In other words, each transverse hardened zone contains two transverse hardened subzones containing a reinforcing material and one transverse cutting zone that does not contain a hardening material and which is located between two transverse hardened subzones so that the two transverse hardened subzones have the same width, i.e. . the same size in the longitudinal direction of the carpet of the spread material. When the board is cut into panels in its transverse direction in the transverse reinforcement zone(s), the board can be cut in the transverse reinforcement zone(s). Thus, the cutting of the board is simplified since the board is cut in a small area which does not contain a reinforcing material and therefore does not have a high mechanical strength, while the edges of the obtained panels are hardened edges, since the hardened zone is located on these edges.

Preferably, the cross-cutting zone has such a width that the entire cutting zone can be cut off by cutting the board into panels, or can be milled by providing locking profiles in the panels produced. Preferably, the size of the transverse cutting zone in the longitudinal direction of the spread material carpet is from 1 to 50 mm, more preferably from 5 to 30 mm, most preferably from 8 to 15 mm.

Another preferred embodiment of the proposed method is characterized in that said at least one transverse reinforcement has two transverse edges parallel to the transverse direction of the spread material carpet and includes a transverse central region parallel to the transverse direction of the spread material carpet, wherein the concentration of the reinforcing material gradually decreases from the transverse central region to one or both of the two transverse edges of the specified at least one hardened zone. The transverse central region may have any width that is less than the width of its transverse hardened zone. In this context, the width of the transverse center region is the dimension of the transverse center region in the longitudinal direction of the spread material carpet. Preferably, the size of the transverse center region in the longitudinal direction of the spread material carpet is 6 to 140 mm, more preferably 12 to 90 mm, most preferably 20 to 50 mm. According to this preferred embodiment, the cross

- 6 040757 The forged zone contains a transverse central region in which the reinforcing material can be present in a constant (relatively high) concentration throughout the central region. In other areas of the transverse hardened zone, the concentration increases from one or both transverse edges of the hardened zone to the central region. Thus, a smooth transition from areas without reinforcing material to a central area of the strengthened zone having a relatively high concentration of reinforcing material can be obtained. Therefore, there is an abrupt transition from non-strengthened areas of the manufactured board to highly strengthened areas of the manufactured board, and thus a sudden change in mechanical properties is prevented. Since places on a board (or panels made from such a board) with such sharp transitions or changes in mechanical properties tend to break easily if they are subjected to mechanical stress, the prevention of such abrupt transitions is very advantageous in terms of the strength of the produced board or panels.

In the case where said at least one transverse reinforcement comprises a transverse central region and a transverse cutting zone, the transverse cutting zone is located in this transverse central region of said at least one transverse reinforced zone. Thus, the transverse central region contains a transverse cutting zone, which does not contain a reinforcing material and which is located between two transverse reinforced subzones of the specified at least one transverse reinforced zone, so that the transverse cutting zone is at the same distance from both transverse edges of the specified at least one transverse hardened zone. In this case, the reinforcing material may be present in a constant (relatively high) concentration in the entire central region except for the transverse cutting zone, in which no reinforcing material is present. The width of the transverse cutting zone is less than the width of the transverse central region. In this context, the width is the lengthwise dimension of the spreadable carpet. As already explained above, the presence of a transverse cutting zone makes it easier to cut the board into panels, since the board can be cut in a transverse subzone that does not contain a reinforcing material.

Another preferred embodiment of the proposed method is characterized in that the distance to said at least one transverse reinforced zone from the top surface and/or bottom surface of the spread material carpet is at least 10 mm, preferably at least 20 mm, more preferably across at least 40 mm, most preferably at least 60 mm, or said at least one transverse reinforcement zone extends substantially through the entire thickness of the spread material carpet.

When said at least one transverse reinforcement zone extends substantially over the entire thickness of the spread material carpet, a good and uniform distribution of the reinforcement material is achieved. In this way, the mechanical strength of the edges of the panels made from the board is increased by cutting the board in transverse hardened zones. The thickness of the spread material mat is the dimension of the spread material mat in a direction perpendicular to the longitudinal direction of the spread material mat and perpendicular to the transverse direction of the spread material mat.

In another preferred embodiment of the proposed method, the reinforcing material is added to the spread glued particulate material so that the spread material carpet has additional corner reinforcement zones extending from said at least one transverse reinforcement zone in the longitudinal direction of the spread material carpet. Preferably, the size of each additional corner reinforcement zone is less than or equal to the width of said at least one transverse reinforcement zone. In this context, the width of said at least one transverse reinforced zone is the dimension of said at least one transverse reinforced zone in the longitudinal direction of the spread material carpet. In this preferred embodiment, not only the edges of the panels produced from the resulting board can be strengthened, but also the corner areas between these reinforced edges and the adjacent edges of the panels. In this way, an even higher mechanical strength of the reinforced edges of panels made from the board can be achieved. The production of such corner hardened zones can be easily achieved, for example, using a suitably designed injection needle assembly to add a hardening material.

Particularly preferably, the reinforcing material is added to the spread bonded particulate material perpendicular to the direction of conveyance by spraying and/or spraying during formation of the spread material mat, and/or by injection after forming the spread material mat and prior to any pressing of the spread material mat.

Thus, the reinforcing material can be added directly to the central regions of the spread material carpet or between the individual layers of the bonded particulate material. In this way, an even better and even more uniform distribution of the pack can be achieved.

- 7 040757 buckling material in the hardened zones, which leads to a higher mechanical strength of the hardened zones of the produced board and, thus, also to a higher mechanical strength of the hardened edges of panels made from such a board.

In yet another preferred embodiment, the reinforcing material is added to the distributed glued particulate material by at least one reinforcing material adding means located above the conveyor (preferably within the spreading area), said at least one reinforcing material adding means preferably being at least one nozzle and/or at least one injection needle assembly with injection needles. In this preferred embodiment, it is possible to easily and accurately add the reinforcing material during the formation of the mat from the spread material. Using injection needles, the reinforcing material can be easily added across the entire thickness of the reinforced zone, even after the mat has been formed from the spread material. In this way, an even more uniform distribution of the reinforcing material in the hardened zones can be achieved, which leads to a higher mechanical strength of the hardened zones of the manufactured board and thus also a higher mechanical strength of the reinforced edges of panels made from such a board.

Particularly preferably, the reinforcing material is added to the spread glued particulate material perpendicular to the conveyance direction by at least one nozzle during the formation of a mat of the spread material, and/or by means of at least one injection needle assembly with injection needles after the formation of a mat of the spread material and before any by pressing a carpet from the material to be distributed.

Another preferred embodiment of the proposed method is characterized in that the reinforcing material is added to the distributed glued particulate material using at least one injection needle assembly with injection needles, the injection needle assembly being mounted on the injection needle assembly moving means. In this regard, preferably at the beginning of the injection section, the injection needle assembly moves downwards so that the injection needles penetrate the distributed glued particulate material in the vertical direction, then the injection needle assembly moves (horizontally) in the transport direction at the same speed as the distributed glued particulate material. the particulate material moves along the conveyor when the reinforcing material is injected into the distributed glued particulate material by means of the injection needles, after which, at the end of the injection section, the injection needle assembly moves upward in the vertical direction, so that the injection needles are pulled out from the distributed glued particulate material in the vertical direction , and then the injection needle assembly is moved back to the beginning of the site to perform the injection. The injection site is a local area in which the reinforcing material is injected into the distributed adhesive particulate material. In this preferred embodiment, easy, quick and precise addition of the reinforcing material is possible. In addition, the reinforcing material can be added when the distributed glued particulate material is continuously moving along the conveyor. In addition, thanks to this horizontal movement of the injection needles (i.e. movement in the direction of transport) and the additional corresponding vertical movement of the injection needles, a clear and extremely vertical path of the injection needles is achieved, while the carpet of the spread material is only minimally disturbed. Preferably, the vertical movement of the injection needles is not a rotary movement. In this way even less disturbance of the spreading material carpet can be achieved.

Preferably, the injection needle assembly is in the form of a rod.

Particularly preferably, the reinforcing material is added to the distributed bonded particulate material by means of at least two injection needle assemblies with injection needles. Preferably, said at least two injection needle assemblies are mounted on the same injection needle assembly moving means. Also preferably, said at least two injection needle assemblies are moved by the injection needle assembly moving means synchronously.

It is also possible that when the injection needle assembly moves (horizontally) in the conveying direction at the same speed as the distributed glued particulate material moving along the conveyor, the injection needle assembly further moves vertically up and/or down while the reinforcing agent is injected. material with injection needles into the distributed glued particulate material. Thus, columnar injection of the reinforcing material into the distributed bonded particulate material is possible.

In its simplest form, the injection needle assembly may be in the form of a moving needle roller (or a multi-roller assembly) in which the needles are in the form of injection needles.

Further preferably, the means for moving the injection needle assembly is an injection needle carousel comprising at least one carousel belt on which

- 8 040757 at least one injection needle assembly is installed, or a combination of means for moving the injection needle assembly along the X axis, which moves the injection needle assembly in the horizontal direction, and means for moving the injection needle assembly along the Y axis, which moves the injection needle assembly in the vertical direction .

Preferably, the injection needle carousel comprises at least one carousel belt on which at least two injection needle assemblies are mounted. Preferably, the means for moving the injection needle assembly along the X axis is an injection sled with a sled moving means and/or the means for moving the injection needle assembly along the Y axis is a pneumatic means, a hydraulic means, or an electromechanical means.

The use of an injection needle carousel is a simple and effective way to achieve horizontal and vertical movement of said at least one injection needle assembly. In addition, it is also a simple and effective way to achieve simultaneous horizontal and vertical movement of at least two injection needle assemblies. Such a carousel can be made in the form of two rotating belts, one on each of the two edges of the conveyor.

One or more rod-shaped injection needle assemblies can be mounted on these rotating belts. This embodiment has the advantage that it can be effectively implemented in a small space between the distribution head for distributing the glued particulate material and the press for pressing the carpet of the material to be distributed. However, the simultaneous movement of at least two injection needle assemblies leads to the problem that it is rather difficult to supply material from the reinforcing material reservoir and control the injection needles by reinforcing material moving and controlling means such as simple cords and cables. However, this difficulty can be overcome by feeding material and driving the injection needles through axles, by periodically replenishing a secondary reservoir that rotates with the injection needle assemblies as they move backwards, and/or by adding battery-powered and remote-controlled elements such as radio controlled items.

The use of a combination of the injection needle assembly moving means along the X axis and the injection needle assembly moving means along the Y axis has the advantage that all parts can be easily supplied with material and can be controlled by simple cords and/or cables, so that the moving and controlling means reinforcing material can be done easily and inexpensively. Preferably, high speeds and accelerations of the means for moving the injection needle assembly along the X axis are implemented. The moving parts are preferably lightweight structures.

Each injection needle may be directly connected to the reinforcing material inlet, which in turn may be connected to the reinforcing material reservoir via reinforcing material transport means. If, for example, a pressure pulse is applied to the reservoir of reinforcement material, all injection needles can simultaneously inject the reinforcement material into the spread material carpet.

Preferably all injection needles have the same diameter for even distribution.

Further preferably, each injection needle comprises a syringe plunger and a syringe barrel. Because the reinforcing material can be sticky, such as sticky glue or resin, injection needles can easily become clogged or clogged during prolonged use. One way to minimize clogging of injection needles is to use a sufficiently high internal pressure during injection. This can be achieved by making the injection needles so that they contain a syringe plunger in a syringe barrel. The syringe pistons can be controlled individually or collectively, for example, by a syringe pusher rod connected to, for example, a hydraulically movable pusher plate. In conjunction with dosing valves, not only high internal pressures can be realized, but also precise total dose quantities and even dosing profiles depending on the injection depth.

The injection needles may comprise at their ends reinforcing material exit zones through which the reinforcing material exits the injection needle in the direction of the distributed, glued particulate material. The exit zones of the reinforcing material at the ends of the injection needles can together form a three-dimensional array. This array can be modified and adapted to create hardened zones of the desired shape. For example, the three-dimensional array can be modified to best suit the needs of the formed locking profiles of the panels made from the resulting board. In this way, those parts of the locking profiles which are expected to experience high mechanical stresses can be suitably reinforced. By way of example, if the locking profiles were made in the form of a tongue and groove locking system, the future tongue area could be specially reinforced. As another example, the future area where the cross cut to form board panels may be provided with only a small amount of reinforcing material.

- 9 040757 or be made without this material at all, in order to facilitate cutting and save reinforcing material.

In another preferred embodiment, the injection needles are cleaned with at least one cleaning agent. Preferably, said at least one cleaning means is selected from at least one cleaning plate with holes through which the injection needles can move up and down, brushes, air pulses, a shower, and combinations thereof.

Since the injection needles are expected to work during long production cycles, it is preferable that the material does not build up and stick to the sides of the injection needles over time, otherwise they would punch too wide holes in the mat of material to be dispensed. To counteract such buildup on the injection needles, cleaning agents are provided. One embodiment of such cleaning means may be in the form of a cleaning plate. Such a cleaning plate has holes through which the injection needles move. As the injection needles move up and out of their positions to inject into the distributed adhesive particulate material, they are rubbed by relative vertical movement towards the cleaning plate. Such a cleaning plate can also serve the dual function of smoothing or pre-pressing the surface of the distributed adhesive particulate material after injection has been performed.

Alternatively, the means for cleaning the injection needle may be in the form of brushes, air pulses, showers, and the like. In addition, the cleaning plate itself can be periodically cleaned by additional horizontal cleaning means.

Another preferred embodiment of the proposed method is characterized in that the reinforcement material is added to the distributed glued particulate material using a plurality of locally fixed nozzle assemblies that are located above the conveyor in the distribution area, each of which periodically adds a certain amount of reinforcement material to the distributed glued particulate material during mat formation time from the material to be distributed, wherein each nozzle assembly contains a plurality of nozzles that are located on a line perpendicular to the conveying direction, wherein the nozzle assemblies are arranged sequentially in the conveying direction and are located at the same distance from each other, and at the same time the conveyor speed and periodic the addition of material by the nozzle assemblies are synchronized so that the reinforcement material is added by each nozzle assembly to the same predetermined area of the distributed bonded particulate material. In this preferred embodiment, easy, quick and precise addition of the reinforcing material is possible. It is particularly advantageous that movement of the nozzle assemblies is not required and thus the addition of the reinforcing material is simplified.

Another preferred embodiment is characterized in that additional reinforcing material is added to the spread glued particulate material parallel to the direction of transport by spraying, spraying and/or injection during the formation of the carpet from the spread material and/or after the formation of the carpet from the spread material and before any pressing of the carpet. of the spreading material in such a way that the spreading material carpet additionally has at least one longitudinal reinforced zone containing the reinforcing material. Thus, the manufactured board contains at least one longitudinal reinforcement zone and at least one transverse reinforcement zone. Therefore, in this preferred embodiment, a board is obtained from which panels with at least one longitudinal hardened edge and at least one transverse hardened edge, as well as panels with three or four hardened edges, can be produced by longitudinally cutting the board in the specified at least one longitudinal hardened zone and across in said at least one transverse hardened zone.

Preferably, the addition of the reinforcing material to the distributed glued particulate material parallel to the conveying direction is carried out in the same manner as adding the reinforcing material to the distributed adhesive particulate material perpendicular to the conveying direction.

In yet another preferred embodiment, the adhesive and the reinforcing material are the same material, the adhesive and/or the reinforcing material being selected from the group consisting of urea-formaldehyde resins, resorcinol-formaldehyde resins, phenol-formaldehyde resins, polyurethane resins, epoxy resins, cyanoacrylates, polyvinyl acetates, methylene diphenyl diisocyanate resins and mixtures thereof. Using the same material as adhesive and as packaging

- 10 040757 roaring material, incompatibility of different materials can be avoided, which can lead to a decrease in strength. In addition, the method is simplified since only one material is used.

Preferably, the reinforcing material is liquid. It is further preferred that the reinforcing material be selected from the group consisting of urea-formaldehyde resins, resorcinol-formaldehyde resins, phenol-formaldehyde resins, polyurethane resins, epoxy resins, cyanoacrylates, polyvinyl acetates, methylenediphenyl diisocyanate resins, and mixtures thereof. With these materials, a high mechanical strength can be achieved in the reinforced areas of the manufactured board and thus also in the reinforced edges of panels produced from such a board.

Further preferably, the wood particulate material is selected from the group consisting of wood fibers, wood dust, wood chips, wood strands and mixtures thereof. Particularly preferably, the wood particulate material is wood fibers.

In another preferred embodiment, the slab is cut or sawn into several slabs at least once in the transverse direction of the slab, while cutting or sawing the slab in the transverse direction, the slab is cut or sawn in said at least one transverse hardened zone.

In this context, preferably each board of said plurality of boards has at least one top layer, said at least one top layer being preferably selected from the group consisting of primer layers, decorative layers, resin layers, lacquer layers, soundproofing layers, moisture barrier layers. , wear-resistant layers, protective layers and their combinations. For example, the board has a resin-impregnated paper layer, a decorative layer, a layer of resin-impregnated abrasion-resistant particles, a primer layer, and/or a top layer. Layers can be obtained by printing, spraying, coating, deposition, or a combination thereof. Preferably the layers are added by printing, more preferably by direct printing.

The present invention also relates to a plate for the manufacture of panels, which can be produced using the proposed method, while the plate has a top surface and a bottom surface, a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, while the plate contains at least one transverse hardened zone containing a reinforcing material. Edge-reinforced panels can be made from such a board, while the board itself can be produced cost-effectively since only a small amount of reinforcing material is required.

In accordance with the invention, the plate has at least one transverse hardened zone. In this context, the reinforced zone is the zone of the plate in which the reinforcing material is located. Said at least one transverse reinforcement zone is transverse, which means that said at least one transverse reinforcement zone is parallel to the transverse direction of the plate. Said at least one transverse hardened zone has two transverse edges, i. e. the edges are parallel to the transverse direction of the plate. Preferably, said at least one transverse reinforcement zone is in the form of a line, a strip or a strip, in particular a straight line, a straight strip or a straight strip.

The transverse reinforced zone may include a transverse cutting zone containing no reinforcing material, i. e. a transverse cutting zone in which no reinforcing material is present. When the board is cut in this cutting zone, a simplified cutting of the board is possible, with a hardened zone located on the edges of the resulting panels.

The transverse hardened zone is only a zone, i.e. partial area of the slab. In particular, the transverse hardened zone has a limited dimension in the longitudinal direction of the plate. In other words, the transverse hardened zone does not extend over the entire dimension of the slab in its longitudinal direction. In other words, the size of the transverse hardened zone in the transverse direction of the plate is smaller than the size of the plate in its longitudinal direction.

Preferably, said at least one transverse hardened zone extends across the entire width of the board, i.e. over the entire size of the plate in its transverse direction.

Preferably, said at least one transverse hardened zone has a constant width, i. e. constant dimension in the longitudinal direction of the slab.

The proposed plate can be manufactured (or is manufactured) by the method performed in accordance with the invention, i.e. a method of manufacturing a plate for the manufacture of panels.

Since the inventive board has been manufactured by the method of the present invention, said at least one transverse zone of the board represents at least one precisely defined area of reinforcement in which the reinforcing agent is uniformly distributed. Due to this uniform distribution, said at least one reinforced zone of the board can withstand a higher mechanical load, i.e. said at least one reinforced zone of the plate has a higher mechanical strength. Thus, the proposed board differs from other boards known in the art in that said at least one transverse reinforcement zone is more precisely defined and the reinforcing material is more evenly distributed in said at least one transverse reinforcement zone. In addition, uka

- 11 040757 at least one transverse hardened zone of a plate made in accordance with the present invention has a higher mechanical strength than the hardened zones of boards known from the prior art. These differences are due to the fact that the board according to the invention was produced by the process.

From a board according to the invention, panels can be produced by cutting the board in its transverse direction in said at least one transverse reinforced zone. In this way, edge-hardened panels are obtained which can withstand higher mechanical loads, i. e. hardened edges have higher mechanical strength.

Thus, said at least one transverse reinforcement zone is preferably at least one predetermined zone in which the manufactured board is to be cut (in its transverse direction) into panels so that each of the resulting panels contains at least one reinforced edge. .

In another preferred embodiment, the slab is an endless slab.

Another preferred embodiment of the plate according to the present invention is characterized in that the plate has several transverse hardened zones.

Together, the transverse hardened zones do not extend over the entire size of the slab in its longitudinal direction. In other words, the sum of the dimensions of the transverse hardened zones in the longitudinal direction of the plate is less than the dimension of the plate in its longitudinal direction. Since each of the transverse hardened zones is parallel to the transverse direction of the plate, all the transverse hardened zones are parallel to each other.

Preferably, each of the transverse hardened zones extends across the entire width of the board, i. e. over the entire size of the plate in its transverse direction.

Preferably, each of the transverse hardened zones has a constant width, i. e. constant dimension in the longitudinal direction of the slab.

For example, a slab has three, four, or five transverse hardened zones.

Preferably, the transverse hardened zones are spaced at the same distance from each other. This means that the distance between each pair of adjacent transverse hardened zones is the same. In this context, the distance between the first and second transverse reinforcement zone is the shortest distance between the transverse center line of the first transverse reinforcement zone and the transverse center line of the second transverse reinforcement zone, wherein the transverse center line of the reinforcement zone is a line parallel to the transverse direction of the plate and spaced at the same distance. to both transverse edges of the hardened zone. In this regard, the transverse edge of the transverse hardened zone is an edge parallel to the transverse direction of the plate.

For example, if a slab has three transverse hardened zones that are equally spaced apart, with the second zone being between the first zone and the third zone, then the distance between the first zone and the second zone is equal to the distance between the second zone and the third zone, i.e. . the distance between the first zone transverse center line and the second zone transverse center line is equal to the distance between the second zone transverse center line and the third zone transverse center line.

Moreover, preferably, the size of said at least one transverse reinforcement zone in the longitudinal direction of the board is 6 to 140 mm, preferably 12 to 90 mm, more preferably 20 to 50 mm.

Moreover, preferably, said at least one transverse reinforced zone has two transverse (outer) edges that are parallel to the transverse direction of the plate, while said at least one transverse strengthened zone contains two transverse reinforced subzones containing reinforcing material, and one transverse zone cutting, which does not contain a reinforcing material and which is located between two transverse hardened subzones, so that the distance from it to both transverse (outer) edges of the specified at least one transverse hardened zone is the same. In other words, each transverse hardened zone contains two transverse hardened subzones containing a reinforcing material and one transverse cutting zone that does not contain a hardening material and which is located between two transverse hardened subzones, so that the two transverse hardened subzones have the same width, i.e. . the same size in the longitudinal direction of the plate. When the board is cut into panels in its transverse direction in the transverse hardened zone(s), the board can be cut in the cutting zone(s) of the transverse hardened zone(s). Thus, the cutting of the board is simplified since the board is cut in a small area that does not contain a reinforcing material and therefore does not have high mechanical strength, while the edges of the resulting panels are hardened edges, since the hardened zone is located on these edges.

Preferably, the transverse cutting zone has such a width that the entire cutting zone can be cut by cutting the board into panels or can be milled by providing

- 12 040757 prefabricated panels with locking profile elements. Preferably, the dimension of the transverse cut zone in the longitudinal direction of the board is 1 to 50 mm, more preferably 5 to 30 mm, most preferably 8 to 15 mm.

Another preferred embodiment of the plate made in accordance with the invention is characterized in that said at least one transverse hardened zone has two longitudinal edges that are parallel to the transverse direction of the plate, and contains a transverse central region that is parallel to the longitudinal direction of the plate, and the concentration reinforcing material gradually decreases from the transverse Central region to one or both of the two transverse edges of the specified at least one reinforced zone. The transverse central region may have any width that is less than the width of its transverse hardened zone. In this context, the width of the transverse center region is the size of the center region in the longitudinal direction of the plate. Preferably, the size of the transverse central region in the longitudinal direction of the board is 6 to 140 mm, more preferably 12 to 90 mm, most preferably 20 to 50 mm. According to this preferred embodiment, the transverse reinforcement zone comprises a transverse central region in which the reinforcement material can be present in a constant (relatively high) concentration throughout the central region. In other areas of the transverse hardened zone, the concentration increases from one or both transverse edges of the hardened zone to the central region. Thus, a smooth transition can be obtained from regions without reinforcing material to the central region of the strengthened zone having a relatively high concentration of reinforcing material. Therefore, it is possible to avoid a sudden transition from non-strengthened areas of the manufactured board to highly strengthened areas of the manufactured board, and thereby avoid a sudden change in mechanical properties. Since sections of the board (or panels made from such a board) with such abrupt transitions or changes in mechanical properties tend to break easily if subjected to mechanical stress, the prevention of such abrupt transitions is highly advantageous in terms of the strength of the produced board or panels.

If said at least one transverse reinforcement comprises a transverse central region and a transverse cutting zone, then the transverse cutting zone is located in this transverse central region of said at least one transverse reinforced zone. Thus, the transverse central region contains a transverse cutting zone, which does not contain a reinforcing material and which is located between two transverse reinforced subzones of the specified at least one transverse reinforced zone, so that the distance from the transverse cutting zone to both transverse edges of the specified at least one transverse hardened zone equally. In this case, the reinforcing material may be present in a constant (relatively high) concentration throughout the central region, with the exception of the transverse cutting zone, in which no reinforcing material is present. The width of the transverse cutting zone is less than the width of the transverse central region. In this context, the width is the dimension in the longitudinal direction of the slab. As already explained above, the presence of a transverse cutting zone makes it easier to cut the board into panels, since the board can be cut in a transverse subzone that does not contain a reinforcing material.

Another preferred embodiment of the plate according to the invention is characterized in that the distance to said at least one transverse reinforced zone from the upper and/or lower surface of the plate is at least 5 mm, preferably at least 10 mm, more preferably at least 20 mm, most preferably at least 30 mm, or said at least one transverse hardened zone (6, 6') extends essentially over the entire thickness of the board.

When said at least one transverse reinforcement zone extends substantially over the entire thickness of the board, a good and uniform distribution of the reinforcement material is achieved. Thus, the mechanical strength of the edges of the panels made from the board is increased by cutting the board along transverse hardened zones. The slab thickness is the dimension of the slab in the direction perpendicular to the longitudinal direction of the slab and perpendicular to the transverse direction of the slab.

Further, preferably, the inventive board is particle board, oriented strand board, medium density fibreboard, or high density fibreboard.

In addition, preferably the proposed board has at least one top layer, and the specified at least one top layer is preferably selected from the group consisting of primer layers, decorative layers, polymer layers, lacquer layers, soundproofing layers, moisture barrier layers, wear-resistant layers, protective layers and their combinations.

In another preferred embodiment, the proposed plate is characterized in that it has additional corner reinforcement zones extending from said at least one transverse reinforcement zone in the longitudinal direction of the plate. Preferably the size of each up to

- 13 040757 additional corner hardened zone is less than or equal to the size of the specified at least one transverse hardened zone in the longitudinal direction of the plate. In this preferred embodiment, not only the edges of the panels produced from the resulting board can be reinforced, but also the corner areas between these reinforced edges and adjacent edges. In this way, an even higher mechanical strength of the reinforced edges of panels made from the board can be achieved. The creation of such corner hardened zones can be easily achieved, for example, by using a suitably designed injection needle assembly to add a hardening material. Preferably, the corner reinforcement zones are triangular in shape.

The present invention also relates to a method for making a spreadable material carpet, which includes the following steps:

a) use of particulate material containing or consisting of wood particulate material,

b) production of a glued particulate material by adding glue to the particulate material,

c) forming a spreading material carpet having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, by uniformly distributing the glued particulate material on a conveyor, on which the glued particulate material is transported in a transport direction parallel to the longitudinal direction of the spreading material carpet, moreover, the glued particulate material is distributed along the conveyor along the length of the spreading section passing in the conveying direction so that in the conveying direction the distributed glued particulate material is accumulated in the carpet of the spreading material along the length of the distribution section, while the reinforcing material is added to the distributed glued particulate material perpendicular to the conveying direction during the formation of the carpet from the spreading material and/or after the formation of the spreading material mat and before any pressing of the spreading material mat in such a way so that the spread material carpet has at least one transverse reinforced zone containing the reinforcing material.

The addition of the reinforcing material is carried out by spraying, spraying the reinforcing material onto the distributed glued particulate material and/or injection of the reinforcing material into the distributed glued particulate material.

The details described above also apply to the method of making a carpet from the spread material.

The present invention also relates to a spread material mat produced by the process of the present invention, wherein the spread material mat has an upper surface and a lower surface, a longitudinal direction and a transverse direction, the spread material mat having at least one transverse reinforced zone. containing a reinforcing material.

A spreadable material carpet made in accordance with the invention can be made or is made by the proposed method, i. e. method of making a carpet from the material to be distributed.

The present invention also relates to a method for manufacturing panels, comprising features of the proposed method for manufacturing at least one slab for manufacturing panels, characterized in that the panel is cut or sawn at least once in the longitudinal direction of the slab and at least once in the transverse direction of the slab into several panels, while cutting or sawing the plate in its transverse direction, the plate is cut or sawn in the specified at least one transverse hardened zone so that each of the obtained panels contains at least one hardened edge.

Thus, the method of manufacturing panels at least includes the following steps:

a) use of particulate material containing or consisting of wood particulate material,

b) production of a glued particulate material by adding glue to the particulate material,

c) forming a carpet of spreading material having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, by uniformly distributing the glued particulate material on the conveyor, on which the distributed glued particulate material is transported in the direction of transportation parallel to the longitudinal direction of the carpet of the spreading material, and the glued particulate material the material is distributed on the conveyor along the length of the distribution section extending in the conveying direction, so that in the conveying direction the distributed glued particulate material accumulates in the spreading material mat along the length of the distribution section,

d) production of a board by pressing a carpet from the material to be spread, while the reinforcing material is added by spraying, spraying onto the spread glued dispersion mat

- 14 040757 rial and/or injection into the spread glued particulate material perpendicular to the direction of transport during the formation of the mat of the spread material and/or after the formation of the mat of the spread material and before any pressing of the mat of the spread material so that the mat of the spread material has at least one transverse hardened zone containing a reinforcing material, and at the same time the board obtained in step d) is cut or sawn into several panels at least once in the longitudinal direction of the board and at least once in the transverse direction of the board, while by cutting or sawing the board in its transverse direction, the board is cut or sawn in said at least one transverse hardened zone, so that each of the obtained panels contains at least one hardened edge.

Since the reinforcing material is added to the distributed glued particulate material during the formation of a carpet from the spreading material and/or after the formation of said carpet and before any pressing of said carpet, the reinforcing material is better and more evenly distributed in the reinforced zone. Thus, said at least one reinforced edge of the manufactured panels can withstand higher mechanical loads. In addition, it is possible to precisely add a reinforcing material, i. e. uniform distribution of the reinforcing material is possible in precisely defined areas of the distributed glued powder material. After that, using the proposed method, it is possible to obtain panels with one or more precisely defined hardened zones on their edges, in which the hardening agent is uniformly distributed. Moreover, the use of excess pressure or vacuum to distribute the already added reinforcing material is not necessary in the proposed method, which makes this method less complicated than prior art methods. Furthermore, in the proposed method, an additional pre-compression step for pre-compression (or pre-compression) of the spread material carpet is not required. Thus, one complete process step can be saved compared to the methods known in the prior art. Therefore, the proposed method is more cost-effective, more economical and less complicated. Since the reinforcing material is not added along the entire length of the spread material carpet, but only in one or more reinforced zones, only a small amount of reinforcing material is required, and thus the proposed method is more cost-effective than other methods known in the art. Since the reinforcing material is added perpendicular to the conveying direction within one or more transverse reinforced zones, the addition of the reinforcing material can be easily carried out when the distributed glued particulate material is conveyed along the conveyor. Thus, the addition of a reinforcing material can be easily integrated into a fully continuous board or panel manufacturing process. Therefore, the proposed method saves time. Following this, the proposed method is a cost-effective and time-saving method for manufacturing edge-reinforced panels, these edge-reinforced edges having increased mechanical strength.

All preferred features and embodiments described for the proposed method for manufacturing at least one board for making panels also apply to the method for manufacturing panels according to the invention.

Preferably, the board is cut or sawn along said at least transverse hardened zone, so that each of the resulting panels contains at least two hardened edges.

Particularly preferably, the board is cut or sawn along said at least one transverse reinforcement zone, so that said at least one transverse reinforcement zone is bisected.

Preferably, the distance between the two hardened zones remains constant throughout the entire manufacturing time. Moreover, this constant distance is preferably synchronized with the cross cuts with which the board is cut into panels. This can be achieved simply by measuring the distance traveled by the conveyor or by adding a detectable marker at the injection position. In this way, easy automatic cutting of the board can be performed, while it can be ensured that the hardened zones are located along the edges of the manufactured panels, so that these panels have hardened edges.

In addition, preferably said at least one hardened edge is at least one transverse hardened edge.

Preferably, the cutting or sawing is carried out during transport of the board on a conveyor.

In yet another preferred embodiment of the panel manufacturing method according to the invention, the locking profile element is machined to

- 15 040757 respectfully pressed or milled on the specified at least one hardened edge of each panel, while the locking profile element is preferably selected from the group consisting of tongues, protrusions, hooks, grooves, self-locking surfaces and combinations thereof. The edges of panels with a locking profile are particularly susceptible to breakage. Thus, it is very preferable that the edge of the panel having the locking profile is produced as a hardened edge according to the method of the invention, since the locking profile thus has a significantly higher mechanical strength.

Preferably, the reinforcing material is selectively added at predetermined locations of the distributed glued particulate material, in which the future locking profile elements will be located. In this way, it is possible to adapt the profile or shape of the transverse reinforcement zone to the profile or shape of the future locking profile, so that the reinforcement zones at the edges of the panels are ideally suited to the locking profiles of the panels.

Another preferred variant of the method for manufacturing panels in accordance with the present invention is characterized in that the board additionally has at least one longitudinal reinforcement zone, in which, when cutting or sawing the board in its longitudinal direction, the board is cut or sawn in said at least one longitudinal reinforcement zone. zone. Therefore, in this preferred embodiment, panels with at least one longitudinal reinforced edge and at least one transverse reinforced edge, as well as panels with three or four reinforced edges, can be produced.

Particularly preferably, the board is cut or sawn in said at least one longitudinal reinforcement zone so that said at least one longitudinal reinforcement zone is bisected.

The present invention also relates to a panel that can be manufactured or that is manufactured using the proposed method, and the panel has two longitudinal edges and two transverse edges, while along at least one of the longitudinal edges and/or at least one of the transverse edges is a reinforced a zone containing a reinforcing material, such that the panel contains at least one reinforced edge. Thus, at least one of the two longitudinal edges of the panel is a reinforced edge and/or at least one of the two transverse edges of the panel is a reinforced edge.

Preferably along at least one of the transverse edges of the panel is a reinforced zone containing a reinforcing material, so that the panel contains at least one transverse reinforced edge. In this case, at least one of the two transverse edges of the panel is a hardened edge.

The panel according to the invention can be produced or manufactured according to the method according to the invention, i.e. panel manufacturing method.

Another preferred embodiment of the proposed panel is characterized in that along each of the longitudinal edges and/or along each of the transverse edges there is a reinforced zone containing a reinforcing material. Thus, both longitudinal edges are reinforced edges containing a reinforcing material and/or both transverse edges are reinforced edges containing a reinforcing material.

Particularly preferably along each of the transverse edges of the panel is a reinforced zone containing a reinforcing material. In this case, both transverse edges of the panel are reinforced edges.

Another preferred embodiment of the proposed panel is characterized in that the panel has additional corner reinforcement zones extending from said at least one reinforcement zone in a direction perpendicular to the edge along which the reinforcement zone is located. Preferably, the size of each additional corner reinforcement zone is less than or equal to twice the width of said at least one transverse reinforcement zone. In this context, the width of said at least one transverse reinforcement zone is the dimension of said at least one transverse reinforcement zone in the longitudinal direction of the panel. The longitudinal direction of the panel is a direction parallel to the longitudinal edges (long side edges) of the panel. In this preferred embodiment, not only the panel edges themselves are reinforced, but also the corner regions between these reinforced edges and adjacent edges. In this way, an even higher mechanical strength of the hardened panel edges can be achieved. The production of such corner hardened zones can be easily achieved, for example, using a suitably designed injection needle assembly to add a hardening material. The corner reinforcement zones are preferably triangular in shape.

In another preferred embodiment of the proposed panel, the reinforced zone has a distance from the top and/or bottom surface of the panel of at least 5 mm, preferably at least 10 mm, more preferably at least 20 mm, most preferably at least 30 mm, or extends substantially through the entire thickness of the panel.

- 16 040757

Further preferably, the panel of the present invention is particle board, oriented strand board, medium density fibreboard, or high density fibreboard.

In addition, preferably the proposed panel has at least one top layer, and said at least one layer is preferably selected from the group consisting of primer layers, decorative layers, polymer layers, lacquer layers, soundproofing layers, moisture barrier layers, wear-resistant layers of protective layers. and their combinations.

In yet another preferred embodiment of the proposed panel, said at least one reinforced edge has a locking profile element, the locking profile element being preferably selected from the group consisting of tongues, protrusions, hooks, grooves, self-locking surfaces, and combinations thereof. The edges of panels with a locking profile are particularly susceptible to breakage. Thus, it is very advantageous for the edge of the panel having the locking profile to be a hardened edge, since the locking profile thus has a significantly higher mechanical strength.

The present invention also relates to the use of the proposed panel as a floor panel, wall panel and/or ceiling panel.

The present invention also relates to a device for producing at least one board for the production of panels, the device comprising a gluing device for adding glue to a particulate material that contains or consists of a wood particulate material, and thus to obtain a glued particulate material, a conveyor , on which the glued particulate material can be transported in the conveying direction, a dispensing head for uniformly distributing the glued particulate material on the conveyor within the distribution section, so that a spreading material carpet can be formed on the conveyor having a longitudinal direction parallel to the conveying direction and a transverse direction , perpendicular to the longitudinal direction of the spreading material mat, the distributed glued particulate material accumulating on the spreading material mat in the transport direction along the length of the spreading section i, at least one continuous belt press for making a board by pressing a carpet from the spreading material, at least one reinforcing material adding means for adding a reinforcing material to the distributed glued particulate material during the formation of a carpet from the spreading material and/or after the formation of the carpet of the spread material and prior to any pressing of the spread material mat such that the spread material mat has at least one transverse reinforced zone containing the reinforcing material.

One preferred embodiment of the device according to the invention is characterized in that said at least one reinforcing material addition means is at least one injection needle assembly with injection needles, the device further comprising a means for moving the injection needle assembly, on which the injection needle assembly is installed. Preferably, the means for moving the injection needle assembly is configured to move the injection needle assembly in the vertical and horizontal direction, so that at the beginning of the injection section, the injection needle assembly can move downward so that the injection needles penetrate the distributed glued particulate material in the vertical direction, then the assembly injection needles can move in the conveying direction at the same speed as the spread glued wood particle, while the reinforcing material can be injected into the spread glued wood particle by means of the injection needles, and then at the end of the injection section, the injection needle assembly can be moved upwards so that the injection needles are pulled out from the distributed glued particulate material in the vertical direction, and then the injection needle assembly can be moved back to the beginning of the injection site. The injection site is a local area in which the reinforcing material is injected into the distributed adhesive particulate material. In this preferred embodiment, easy, quick and precise addition of the reinforcing material is possible. In addition, the reinforcing material can be added when the distributed glued particulate material is continuously moving along the conveyor. In addition, thanks to this horizontal movement of the injection needles (i.e. movement in the direction of transport) and the additional corresponding vertical movement of the injection needles, a clear and extremely vertical path of the injection needles is achieved, while the carpet of the spread material is only minimally disturbed. Preferably, the vertical movement of the injection needles is not rotary. Thus, it is possible

- 17 040757 achieve even less disturbance of the spreading material carpet.

Preferably, the injection needle assembly is in the form of a rod.

Particularly preferably, the device comprises at least two injection needle assemblies with injection needles as a means of adding a reinforcing material. Preferably, said at least two injection needle assemblies are mounted on the same injection needle assembly moving means. Also preferably, said at least two injection needle assemblies can be moved synchronously by means of the injection needle assembly moving means.

In its simplest form, the injection needle assembly may be in the form of a movable needle roller (or a multi-roller assembly) in which the needles are injection needles.

In another preferred embodiment of the device made in accordance with the invention, the means for moving the injection needle assembly is an injection needle carousel containing at least one carousel belt on which at least one injection needle assembly is mounted, or a combination of the means for moving the injection needle assembly along the X axis, configured to move the injection needle assembly in the horizontal direction, and means to move the injection needle assembly along the Y axis, configured to move the injection needle assembly in the vertical direction.

Preferably, the injection needle carousel comprises at least one carousel belt on which at least two injection needle assemblies are mounted. Preferably, the means for moving the injection needle assembly along the X axis is an injection sled with a sled transport means and/or the means for moving the injection needle assembly along the Y axis is a pneumatic means, a hydraulic means, or an electromechanical means.

The use of an injection needle carousel is a simple and effective way to achieve horizontal and vertical movement of said at least one injection needle assembly. In addition, it is also a simple and effective way to achieve simultaneous horizontal and vertical movement of at least two injection needle assemblies. Such a carousel can be made in the form of two rotating belts, one on each of the two edges of the conveyor. On these rotating belts, one or more injection needle assemblies can be mounted as a whole in the form of rods. This embodiment has the advantage that it can be effectively realized in a small space between the distribution head for distributing the glued particulate material and the press for pressing the carpet of the material to be distributed. However, the simultaneous movement of at least two injection needle assemblies leads to the problem that it is rather difficult to supply material to the injection needles from the reinforcing material reservoir and to control them by reinforcing material control and transport means such as simple cords and cables. However, this difficulty can be overcome by feeding material and driving the injection needles through axles, by periodically replenishing a secondary reservoir that rotates with the injection needle assemblies as they move backwards, and/or by adding battery-powered and remote-controlled elements such as radio controlled items.

The use of a combination of the injection needle assembly moving means along the X axis and the injection needle assembly moving means along the Y axis has the advantage that all parts can be easily supplied with material and can be controlled by simple cords and/or cables, so that the control and transport means reinforcing material is easy and inexpensive to implement. Preferably, the X-axis moving means can move at high speeds and accelerations. The moving parts are preferably lightweight structures.

Each injection needle may be directly connected to the reinforcing material inlet, which in turn may be connected to the reinforcing material reservoir via reinforcing material transport means. If, for example, a pressure pulse is then applied to the reinforcing material reservoir, all injection needles can simultaneously inject the reinforcing material into the spread material carpet.

Preferably all injection needles have the same diameter for even distribution.

Another preferred embodiment of the proposed device is characterized in that each injection needle contains a syringe plunger and a syringe barrel. Because the reinforcing material can be sticky, such as sticky glue or resin, injection needles can easily become clogged or clogged during prolonged use. One way to minimize clogging of injection needles is to use a sufficiently high internal pressure during injection. This can be achieved by making the injection needles so that they contain a syringe plunger in a syringe barrel. The pistons can be controlled either individually or together, for example by means of syringe pusher rods connected to, for example, a hydraulically movable pusher plate. Together with dosing valves, not only high internal pressures can be realized, but also precise total dose numbers and even profiles

- 18 040757 dosage depending on the injection depth.

The injection needles may comprise at their ends reinforcing material exit zones through which the reinforcing material exits the injection needle in the direction of the distributed, glued particulate material. The exit zones of the reinforcing material at the ends of the injection needles can together form a three-dimensional array. This array can be modified and adapted to create hardened zones of the desired shape. For example, the three-dimensional array can be modified to best suit the needs of the formed locking profiles of the panels made from the resulting board. In this way, those parts of the locking profiles that are expected to experience high mechanical stresses can be suitably strengthened. As an example, if the locking profiles are made in the form of a tongue-and-groove locking system, the future tongue area can be specially reinforced. As another example, a future area where a cross cut will be made to form board panels may have little or no reinforcement material to facilitate cutting and save reinforcement material.

Furthermore, preferably, the device further comprises at least one cleaning agent for cleaning the injection needles. Preferably, said at least one cleaning means is selected from at least one cleaning plate with holes through which the injection needles can move up and down, brushes, air pulses, a shower, and combinations thereof.

Since the injection needles are expected to operate for long production cycles, it is preferable that material does not build up and adhere to the sides of the injection needles over time, otherwise they would punch too wide holes in the mat of material to be dispensed. To counteract such buildup on the injection needles, cleaning agents are provided. One embodiment of such cleaning means may be in the form of a cleaning plate. Such a cleaning plate has holes through which the injection needles move. As the injection needles move up and out of their injection position in the distributed adhesive particulate material, they are rubbed in the process of relative vertical movement towards the cleaning plate. Such a cleaning plate can also serve the dual function of smoothing or pre-pressing the surface of the distributed adhesive particulate material after injection has been performed.

Alternatively, the means for cleaning the injection needle may be in the form of brushes, air pulses, showers, and the like. In addition, the cleaning plate itself can be periodically cleaned by additional horizontal cleaning means.

In another preferred embodiment of the proposed device, said at least one reinforcing material addition means is a plurality of locally fixed nozzle assemblies that are located above the conveyor in the distribution section, and each of which is configured to periodically add a certain amount of reinforcing material to the distributed glued particulate material during the formation of a carpet of the material to be distributed, wherein each node of the nozzles contains a plurality of nozzles located on a line perpendicular to the direction of transport, and nodes of the nozzles are located sequentially in the direction of transport and are located at the same distance from each other, while the device is designed in such a way that that the speed of the conveyor and the periodic addition of material by the nozzle assemblies are synchronized so that the reinforcement material is added by each nozzle assembly to the same predetermined area of the distributed adhesive raw material. In this preferred embodiment, easy, quick and precise addition of the reinforcing material is possible. It is particularly advantageous that movement of the nozzle assemblies is not required, and thus the addition of the reinforcing material is simplified.

In another preferred embodiment, the proposed device is characterized in that it comprises a device for cutting or sawing the board in the transverse direction of the board into several boards, while the device for cutting or sawing the board in the transverse direction is located and designed in such a way that the board is cut or sawn in said at least one transverse hardened zone. Preferably, the device for cutting or sawing the board is synchronized with said at least one reinforcing material addition means and a conveyor. For example, the device is designed in such a way that the speed and frequency of the device for cutting or sawing the board in the transverse direction is synchronized with the speed of the conveyor and (for example, periodic) addition of material using said at least one reinforcing material addition means. In this way, cutting or sawing of the board can be achieved in said at least one transverse reinforcement.

- 19 040757 zone.

Another preferred embodiment of the proposed device is characterized in that it contains a device for making at least one top layer on the platen, while the device for making at least one top layer on the platen is preferably selected from the group consisting of printing devices, devices for coaters, sprayers, sprayers, and combinations thereof. Said at least one top layer is preferably selected from the group consisting of primer layers, decorative layers, resin layers, lacquer layers, acoustic layers, moisture barrier layers, wear layers, base layers and combinations thereof. For example, said at least one top layer is a resin-impregnated paper layer, a decorative layer, a layer of resin-impregnated abrasion-resistant particles, a primer layer, and/or a finish layer. Particularly preferably, the layers are added by printing, preferably by direct printing.

The present invention also relates to a panel manufacturing apparatus comprising features of an apparatus for manufacturing at least one panel manufacturing slab, in accordance with the invention, characterized in that the apparatus comprises at least one apparatus for cutting or sawing the slab in its longitudinal direction, preferably a longitudinal saw, and/or at least one device for cutting or sawing the board in the transverse direction, preferably a diagonal saw.

Thus, the panel manufacturing apparatus at least comprises a gluing device for adding adhesive to a particulate material which contains or consists of a wood particulate material, and thus to obtain a glued particulate material, a conveyor on which the glued particulate material can be transported to a conveying direction, a distributing head for evenly distributing the glued particulate material on the conveyor within the distribution section, so that a spreading material mat can be formed on the conveyor having a longitudinal direction parallel to the conveying direction and a transverse direction perpendicular to the longitudinal direction of the spreading material mat, moreover, the distributed glued particulate material accumulates on a carpet of the distributed material in the direction of transport along the length of the distribution section, at least one press with a continuous belt for the production of a board by pressing the spread material carpet, at least one reinforcing material adding means for adding the reinforcing material to the spread glued particulate material during the formation of the spread material carpet and/or after the formation of the spread material carpet and prior to any pressing of the spread material carpet in this way so that the spreading material carpet has at least one transverse reinforced zone containing the reinforcing material and at least one device for cutting or sawing the board in its longitudinal direction, preferably a rip saw, and/or at least one device for cutting or sawing the slab in its transverse direction, preferably with a diagonal saw.

All preferred features and embodiments described for the inventive apparatus for producing at least one slab for the manufacture of panels also apply to the inventive apparatus for the manufacture of panels.

Another preferred embodiment is characterized in that the device comprises a machine for machining the locking profile on at least one hardened edge of each panel, the machine for machining the locking profile being preferably a milling machine.

The present invention is explained in more detail with reference to the following drawings and preferred embodiments without limiting the invention to the specific parameters presented there.

Fig. 1 is a perspective view of a particular embodiment of panel 1 in accordance with the present invention;

fig. 2 is a perspective view of a specific embodiment of the plate 15;

fig. 3 is a simplified side view of a distribution process known in the art;

fig. 4 is a simplified side view of a particular embodiment of a method for manufacturing a board for making panels and a particular embodiment of an apparatus for making at least one board for making panels;

fig. 5 is a simplified perspective view of another particular embodiment of a method for manufacturing a board for making panels and a particular embodiment of an apparatus for making at least one board for making panels;

- 20 040757 fig. 6 is a simplified side view of yet another particular embodiment of a method for manufacturing a board for making panels and another particular embodiment of an apparatus for making at least one board for making panels;

fig. 7 is a simplified schematic view of yet another particular embodiment of a method for manufacturing a board for making panels and another particular embodiment of an apparatus for making at least one board for making panels;

fig. 8 is a simplified schematic view of yet another particular embodiment of a method for manufacturing a board;

fig. 9 is a simplified schematic side view of the first step of yet another particular embodiment of a method for manufacturing a board;

fig. 10 is a simplified schematic side view of the second step of a specific embodiment of the plate manufacturing method shown in FIG. 9;

fig. 11 is a simplified schematic side view of the third step of a particular embodiment of the manufacturing method shown in FIG. 9 and 10.

Fig. 1 is a perspective view of a specific embodiment of a panel 1 made in accordance with the invention. The panel 1 has two longitudinal edges 2, 2' (long side edges) and two transverse edges 3, 3' (short side edges). Along each of the transverse edges 3, 3', a hardened zone 6, 6' containing a reinforcing material is arranged such that both transverse edges 3, 3' are hardened edges. As the second locking profile 5, the first transverse edge 3 has a hook-shaped profile which engages in a corresponding first locking profile 4 located on the second transverse edge 3'. Both locking profile elements are located in the hardened zones 6, 6'. Although the hardened zones 6, 6' are shown in FIG. 1 with abrupt transitions, it should be emphasized that in the preferred embodiments there is preferably a gradual transition from the non-hardened zones to the hardened zones 6, 6', in order to avoid abrupt changes in mechanical properties, which again can lead to the formation of zones that tend to break easily when such abrupt transitions.

Fig. 2 is a perspective view of a specific embodiment of a plate 15 made in accordance with the invention. In the panel manufacturing process of the present invention, the panels are typically cut from a board 15 that is significantly larger than the finished panels. The board 15 is typically made on a continuous belt press 14, such as in the MDF manufacturing process, and can therefore be of infinite length. For this reason, board 15 is usually cut transversely 16 and longitudinally 17 to obtain panels of the required final size. In subsequent manufacturing steps, the connecting means in the form of locking profiles 4, 5 are formed or milled on the transverse edges 3, 3' of the panels 1 thus obtained. , 6' along the transverse edges 3,3'. In FIG. 2 it can be seen that the plate 15 is cut in the transverse direction 16 in each of the transverse hardened zones 6, 6' so that each longitudinal hardened zone 6, 6' is bisected. The resulting halves are located on different panels, with each of the halves representing its own hardened zone 6, 6' of the corresponding panel.

Fig. 3 is a simplified side view of an example of a board manufacturing process known in the art. In particular, it shows the spreading and pressing process of high density MDF/Fibreboard. In this example, the pre-glued wood fibers pass through the chute 7 onto the chopping rollers 8 for a first uniform distribution onto the dosing conveyor 10. The fibers thus measured and distributed subsequently leave the spreading material hopper 9 and fall onto a distributing head 11. Such a distributing head 11 may consist of , for example, from vibrating screens or a series of rotating distribution drums, the purpose of which is to lay a uniform carpet 13 of the material to be distributed on the conveyor 12 along the length of the distribution section, which begins at the beginning of the distribution head 11 and ends at the end of the distribution head 11. Then a uniform carpet 13 of The dispensed material is usually passed through various optional steps such as further homogenization of the mat 13 or pre-compression and then fed to a press, which is usually in the form of a continuous belt press 14, in which the initially porous material is compacted. and wherein the adhesive is cured at conventional elevated temperatures and elevated pressures.

Fig. 4 is a simplified side view of a particular embodiment of a method and apparatus for making a board in accordance with the invention. Compared to the method and apparatus shown in FIG. 3, an additional hardening step and hardening means made in accordance with the present invention has been added. In this hardening step, the reinforcing material is then added to the uniform and porous spread material mat 13 before it enters the press 14 (not shown in FIG. 4). Hardening is achieved by injecting a preferably liquid strengthening material through a series of injection needles 27 mounted on the injection needle assembly 18 at predetermined hardened zones 6, 6'.

- 21 040757

In its simplest form (not shown in the drawings), the injection needle assembly 18 may be in the form of a movable needle roller (or a multi-roller assembly) in which the needles are injection needles 27. However, such a needle roller tends to cause excessive mechanical disruption of the porous carpet 13 of the distributed material.

According to the preferred embodiment shown in FIG. 4, one or more rod-shaped injection needle assemblies 18, 18' as a whole move horizontally in synchronism and at the same speed with the spread material mat 13, while the injection needles 27 pass through the spread material mat 13 vertically. Thanks to this synchronous horizontal movement of the injection needles 27 and the additional corresponding vertical, non-rotating movement of the injection needles 27, a clear and extremely vertical injection path for the injection needles 27 is achieved, with the mat 13 of the material to be dispensed only minimally disturbed. A simple and effective way to realize such simultaneous horizontal and vertical movement of the injection needle assemblies 18, 18' is to install the injection needle assemblies 18, 18' on the injection needle carousel 19. Such a carousel 19 of injection needles can be made in the form of two rotating carousel belts 35, one on each of the two edges of the conveyor belt 12 for the material to be distributed. Mounted on these rotating carousel belts 35 are one or more injection needle assemblies 18, 18' generally in the form of rods. This embodiment has the advantage that it can be effectively realized in a small space between the distributing head 11 and the continuous belt press 14. However, it simultaneously has the disadvantage that it is rather difficult to control the injection needles 27 and supply the material from the reinforcing material reservoir 20 with the reinforcing material control and transport means 21, such as simple cords and ropes. However, this drawback can be overcome by controlling the injection needles 27 and feeding material through the axles, by periodically replenishing the secondary reservoir, which rotates with the injection needle assemblies 18, 18' as they move back, and/or by adding battery-powered elements and with remote control, such as radio controlled elements.

Fig. 5 is a simplified perspective view of yet another particular embodiment of a board manufacturing method and apparatus in accordance with the present invention. In this embodiment, one (or more) injection needle assemblies 18, 18' are periodically moved along the X and Y axes by two independent means of movement, i. e. means for moving the injection needle assembly along the X axis and means 24 for moving the injection needle assembly along the Y axis. conveyor 12 during the injection process, and in the opposite direction when injection is not in progress. The injection needle assembly 18 (or assemblies 18, 18') is moved in the vertical direction by means 24 for moving the injection needle assembly along the Y-axis, which can be performed as a pneumatic, hydraulic or electromechanical means that moves the fork on which the assembly 18 is mounted (or nodes 18, 18') needles. Hardening is then carried out in the hardened zones 6, 6' by injection, which is equivalent to that described above in connection with FIG. 4.

The embodiment shown in FIG. 5 has the advantage that all parts can be easily fed and controlled with simple cords and/or cables, so that means 21 for transporting and controlling reinforcing material can be easily and cheaply realized. However, since the speeds of the conveyor 12 can be quite high, this embodiment takes up more space along the conveyor 12 in order to facilitate the periodic rearward movement of the sled, and, in addition, it is required to realize high speeds and accelerations of the sled 22 to perform the injection, which requires a lightweight design. moving parts.

In FIG. 5 also shows that the hardened zones 6 are generally created as parallel plates in the porous spread material mat 13 before the spread material mat 13 enters the press 14 (not shown in FIG. 5). During the pressing process, these reinforced zones are compressed vertically, but retain their horizontal position on the conveyor 12. Since one of the objectives of the present invention is to reinforce the edges 2, 2', 3, 3' of the panels and especially the locking profile elements 4, 5 at these edges , the cross sections 16 must be synchronized with the hardened zones 6, 6'. This can be achieved either by simply measuring the distance traveled by the conveyor 12 or by adding a detectable marker at the injection positions. In this way, the longitudinal distance 25 between the two hardened zones can be kept constant during the entire manufacturing time and be synchronized with the transverse cuts 16.

In addition, in FIG. 5 also shows that not only the transverse edges 3, 3' themselves can be strengthened, but also the corner regions between the longitudinal edges 2, 2' and the transverse edges 3, 3'. This is shown in FIG. 5 corner reinforced zones 36 for the situation where the slab is cut longitudinally into only two panels. This can be easily achieved by performing an injection node

- 22 040757 needles in a suitable way to also reinforce the corner areas 36.

In FIG. 6 shows a simplified side view of an example of a portion of the injection needle assembly 18 used in the method and apparatus of the present invention. In this embodiment, an array of injection needles 27 is mounted on the injection needle assembly 18. In its simplest form, each injection needle 27 may be directly connected to the reinforcing material inlet 26, which in turn may be connected to the reinforcing material reservoir 20 via the reinforcing material transport means 21 . If, for example, a pressure pulse is applied to the reinforcing material reservoir 20, then all injection needles can simultaneously inject the reinforcing material into the spreading material carpet 13 . In this regard, it is preferable that all injection needles have the same diameter for uniform distribution and that the injection needles 27 never become clogged during operation. Because tacky adhesives and resins must be injected in the preferred embodiments, and because needles can easily become clogged or clogged during prolonged use, an improved injection design is preferred.

One way to minimize clogging of the needles 27 is to use a sufficiently high internal pressure during injection. This can be achieved by making the injection needles so that they contain a syringe plunger 31 in the syringe barrel 30. The pistons 31 can be controlled individually or in combination, for example, using syringe pusher rods 32 connected, for example, to a hydraulically movable pusher plate 33. In combination with the metering valves 29, not only high internal pressures can be achieved, but also accurate total dose numbers and even metering profiles depending on the injection depth.

As seen in FIG. 6, all of the reinforcement material exit zones 28 at the ends of the injection needles 27 together form a three-dimensional array. This array can be modified and adapted to create hardened zones 6, 6' that are optimally suited to the needs of the formed locking profile elements 4, 5. Thus, those profile elements that are expected to experience high mechanical loads can be suitably strengthened. . For example, if the locking profile elements 4, 5 are made in the form of a tongue-and-groove locking system, the future area of the tongue may be specially reinforced, or a small amount of reinforcing material may be added to the future area where the cross section 16 will be made, or it may be not added at all to facilitate cutting and save reinforcing material.

Since the injection needles 27 are expected to operate over long production cycles, it would be advantageous if material did not build up and stick to the sides of the injection needles 27 over time, otherwise they would punch too wide holes in the carpet 13 of distributed material. In order to counteract such buildup on the injection needles, cleaning agents are provided according to the invention. One embodiment of such a cleaning means may be in the form of a cleaning plate 34. Such a cleaning plate 34 has holes through which the injection needles 27 are moved to perform the injection. As the injection needles 27 move up and out of their injection position in the spread material mat 13, they are cleaned by a relative vertical movement towards a cleaning plate 34. Such a cleaning plate 34 can also serve the dual function of smoothing or pre-compressing the surface of the spread material mat 13 after injection. Alternative means for cleaning the injection needle 27 may be in the form of brushes, air pulses, showers, and the like. In addition, the cleaning plate 34 may be periodically cleaned with additional horizontal cleaning means.

In FIG. 7 is a simplified schematic view of yet another particular embodiment of a method and apparatus for making board in accordance with the invention. This embodiment is similar to the embodiment shown in FIG. 4. Also in this case, one or more injection needle assemblies 18, 18' as a whole in the form of rods move horizontally synchronously and at the same speed as the carpet 13 of the material to be distributed (not shown in FIG. 7), while the injection needles the needles 27 pass through the carpet 13 of the material to be distributed vertically. The injection needle assemblies 18, 18' are mounted on an injection needle carousel 19 which is in the form of two rotating carousel belts 35, one at each of the two edges of the dispensed material conveyor belt 12 (not shown in FIG. 7). Mounted on these rotating carousel belts 35 are one or more injection needle assemblies 18, 18' generally in the form of rods.

In addition, the device contains several additional nodes 18'' injection needles, which are installed and located along the rotating carousel belts 35. When the carousel belts 35 rotate, these additional nodes 18'' injection needles move synchronously and at the same speed as the carpet 13 of of the spread material and rotate around the injection needle carousel 19 while the injection needles 27 penetrate the spread material mat 13 so that the reinforcing material can be injected into the spread material mat 13. Since these additional injection needle assemblies 18 are located along the carousel belts 35, which are pa

- 23 040757 parallel to the longitudinal direction of the spreading material carpet 13, the reinforcing material is additionally added to the distributed glued particulate material parallel to the transport direction, so that the spreading material carpet 13 additionally has at least one longitudinal reinforced zone containing the reinforcing material.

Fig. 8 shows a schematic view of yet another particular embodiment of a board manufacturing method according to the invention. In this embodiment, the reinforcement material is added to the distributed glued particulate material by three locally stationary nozzle assemblies that are located above the conveyor 12 (not shown in Fig. 8) in the distribution area, each of these nodes periodically adding a certain amount of reinforcement material to the distributed glued particulate material during the formation of the carpet 13 from the material to be distributed. Each of the three nozzle assemblies comprises six nozzles 37 arranged in a line perpendicular to the conveyance direction, with the three nozzle assemblies arranged in sequence in the conveyance direction and equidistant from each other. It should be noted that FIG. 8 is schematic and very simplified. Thus, some elements of the method and apparatus according to the invention are not shown in FIG. 8 for clarity.

Fig. 8 is divided into three sections a), b) and c), which show three different process steps in which the reinforcing material is added to the distributed glued particulate material. The first fragment a) shows the first stage, in which the first nozzle assembly adds the reinforcement material to the distributed glued particulate material, the second fragment b) shows the second stage, in which the second nozzle assembly adds the reinforcement material to the distributed adhesive particulate material, and in the third fragment c) a third step is shown in which the third nozzle assembly adds a reinforcing material to the distributed adhesive particulate material. Between these three stages, the distributed glued particulate material is transported by a conveyor in the conveying direction. The speed of the conveyor and the periodical addition of material by the nozzle assemblies are synchronized so that the reinforcing material is added by each nozzle assembly to the same predetermined area of the distributed glued particulate material. In other words, in the first step, shown in fragment a), the target area is under the first nozzle node, in the second step, shown in fragment b), the target area is under the second nozzle node, and in the third step, shown in fragment c), the specified area is under the third node of the nozzle. The predetermined area corresponds to the transverse reinforced zone of the manufactured carpet 13 from the material to be distributed.

In this embodiment, it is possible to easily, quickly and accurately add a reinforcing material, so that at least one transverse reinforced zone is obtained, which passes through. substantially throughout the entire thickness of the spread material carpet. It is particularly advantageous that movement of the nozzle assemblies is not required, and thus the addition of the reinforcing material is simplified.

In FIG. 9, 10 and 11 show a schematic side view of yet another specific embodiment of a method for manufacturing a board according to the invention, in which future locking profiles are selectively reinforced. On each of the FIGS. 9, 10 and 11 show one of three different stages of such selective hardening.

In FIG. 9 shows the first step in which the injection needles 27 of the injection needle assembly 18 are placed in the mat 13 of the material to be dispensed. At the lower end of the injection needles 27, drops of reinforcing material are added to the spread glued particulate material of the carpet of the spread material. The injection needles 27 are divided into two groups. By dividing into two groups in this way, it is possible to create a transverse hardened zone, which contains two transverse hardened subzones containing a reinforcing material, and one transverse cutting zone, which does not contain a reinforcing material, and which is located between two transverse hardened subzones.

In FIG. 10 shows the second step, in which the injection needles have already been removed from the mat 13 of the material to be dispensed. It can be seen that a reinforcing material has been added in a specific area which is adapted to the future locking profiles as indicated in FIG. 9, 10 and 11 by lines 38. Although this cannot be clearly seen in the side view shown in the figure, this particular area is the transverse hardened zone. In this context, it should be noted that the transverse direction of the spread material carpet 13 is perpendicular to the tracing layer. The transverse reinforced zone has two transverse edges which are parallel to the transverse direction of the spreading mat 13 .

These two transverse reinforced zones are represented by the leftmost droplet and the rightmost droplet of the reinforcement material shown in FIG. 10. In addition, the transverse hardened zone contains two transverse hardened subzones containing a reinforcing material, and one transverse cutting zone, which does not contain a reinforcing material and which is located between two transverse hardened subzones in such a way that the distance from it to both transverse hardened edges of the specified at least one transverse hardened zone equally. The transverse cutting zone is represented in the drawing by the area that is located between the two indicated future locking profile elements, indicated by lines 38, where there is no reinforcing material. The presence of a transverse cutting zone located between two transverse hardened

- 24 040757 different subzones, is a consequence of the location of the injection needles 27 in the first stage, shown in FIG. 9 because the injection needles 27 were divided into two groups.

The transverse cutting zone is located in the middle or in the center of the transverse hardened zone, so that the two transverse hardened subzones have the same width, i.e. the same size in the longitudinal direction of the carpet of the spread material. When the board is cut into panels in the transverse direction in the transverse reinforcement zone, the board can be cut in the cutting zone of the transverse reinforcement zone. In this way, the cutting of the board is simplified since the board is cut in a region that does not contain a reinforcing material and therefore does not have high mechanical strength, while the edges of the obtained panels are strengthened because they contain a reinforcing material.

In FIG. 11 shows the third stage, in which the spreading material carpet is already pressed against the slab 15. It can be seen that the reinforcing material is present only in certain places on the slab, where the future locking profiles, which are indicated in the drawing, will be located. In particular, the shape of the transverse reinforcement zone has been adapted to the shape of the last locking profile, so that the reinforcement zones on the edges of the last panels are ideally adapted to the panel locking profiles.

Thus, according to this particular embodiment shown in FIG. 911, the reinforcing material is selectively added only in the areas of the future locking profiles, while no reinforcing material is added in the area where the board is cut into panels.

List of item numbers.

- Panel, , 2' - longitudinal edges (long side edges), , 3' - transverse edges (short side edges),

- the first locking profile element,

- second locking profile element, , 6' - hardened zone,

- gutter,

- crushing rollers,

- the bunker for the distributed material,

- dosing conveyor,

- distributing head,

- conveyor,

- a carpet made of spreadable material,

- press with continuous belt,

- plate (after the press),

- cross section,

- longitudinal section, , 18', 18'' - injection needle assembly,

- a carousel of injection needles,

- reservoir with reinforcing material,

- means of control and transportation of the reinforcing material,

- sled for injection,

- means of moving the sled,

- means for moving the injection needle assembly along the Y axis,

- longitudinal distance between hardened zones,

- inlet for reinforcing material,

- injection needle,

- zones of exit of the reinforcing material,

- dosing valves,

- syringe barrel

- syringe plunger

- syringe pusher rod,

- pusher,

- cleaning plate

- carousel tape,

- corner hardened zone,

- nozzle,

- lines indicating future locking profile elements.

-

Claims (46)

CLAIM 1. A method for manufacturing a plate (15) for manufacturing panels (1), including the following steps: a) use of particulate material containing or consisting of wood particulate material, b) production of a glued particulate material by adding glue to the particulate material, c) forming a carpet (13) from a spreading material having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, by uniformly distributing the glued particulate material on a conveyor (12), on which the distributed glued particulate material is moved in a transport direction parallel to the longitudinal direction of the carpet ( 13) from the spreading material, wherein the glued particulate material is distributed on the conveyor (12) along the length of the distribution section passing in the direction of transport, so that in the direction of transport the distributed glued particulate material accumulates on the specified carpet (13) along the length of the distribution section, d) production of a board by pressing a carpet (13) from the spreading material, wherein the reinforcing material is added to the distributed glued particulate material perpendicular to the direction of transport by spraying, spraying and/or injection during the formation of the carpet (13) from the spreading material and/or after the formation of said carpet (13) and before any pressing of said carpet (13) in such a way that the carpet (13) of the spreading material has at least one transverse reinforced zone (6, 6') containing the reinforcing material. 2. The method according to claim 1, characterized in that the reinforcing material is added to the distributed glued particulate material perpendicular to the direction of transport during the formation of the mat (13) from the spread material and/or after the formation of said carpet (13) and before any pressing of the said carpet ( 13) in such a way that the mat (13) of spreading material has several transverse reinforced zones (6, 6'), which are preferably spaced at the same distance from each other. 3. Method according to any one of the preceding claims, characterized in that the size of said at least one transverse reinforced zone (6, 6') in the longitudinal direction of the spreading material carpet (13) is from 6 to 140 mm, preferably from 12 to 90 mm, more preferably 20 to 50 mm. 4. A method according to any one of the preceding claims, characterized in that said at least one transverse reinforcement zone (6, 6') has two transverse edges parallel to the transverse direction of the spreading mat (13), wherein said at least one the transverse hardened zone (6, 6') contains two transverse hardened subzones containing a reinforcing material, and one transverse cutting zone, which does not contain a reinforcing material and which is located between two transverse hardened subzones in such a way that the distance from it to both transverse edges of the specified at least one transverse hardened zone equally. 5. A method according to any one of the preceding claims, characterized in that said at least one transverse reinforcement zone has two transverse edges that are parallel to the transverse direction of the carpet (13) of the spreading material, and contains a transverse central region that is parallel to the transverse direction of the carpet ( 13) from the spreading material, the concentration of the reinforcing material gradually decreasing from the transverse central region towards one or both of the two transverse edges of said at least one reinforced zone (6, 6'). 6. Method according to any one of the preceding claims, characterized in that the distance to said at least one transverse reinforced zone (6, 6') from the upper surface and/or lower surface of the spreading mat (13) is at least 10 mm , preferably at least 20 mm, more preferably at least 40 mm, most preferably at least 60 mm, or said at least one transverse reinforced zone (6, 6') extends essentially throughout the entire thickness of said carpet ( 13). 7. The method according to any of the preceding claims, characterized in that the reinforcing material is added to the distributed glued particulate material in such a way that the carpet (13) of the spreading material has additional corner reinforced zones (36) extending from said at least one transverse reinforced zone (6, 6') in the longitudinal direction of the specified carpet (13), and preferably the size of each additional corner reinforced zone (36) is less than or equal to the size of the specified at least one transverse reinforced zone (6, 6') in the longitudinal direction of the carpet ( 13) from the distributed material. 8. The method according to any of the preceding claims, characterized in that the reinforcing material is added to the distributed glued particulate material using at least one node - 26 040757 (18, 18') injection needles with injection needles (27), wherein the injection needle assembly (18, 18') is installed on the injection needle assembly moving means, preferably at the beginning of the injection site assembly (18, 18 ') injection needles are moved down so that the injection needles (27) penetrate into the distributed glued particulate material in the vertical direction, then the injection needle assembly (18, 18') is moved in the direction of transport at the same speed as the distributed glued particulate material is transported on the conveyor (12), while at the same time the reinforcing material is injected into the distributed glued particulate material by means of the injection needles (27), and then at the end of the injection section, the injection needle assembly (18, 18') is moved upwards in the vertical direction so that that the injection needles (27) are pulled out of the distributed glued particulate material in the vertical direction, and then the injection unit (18, 18') x needles are moved back to the beginning of the site to perform the injection. 9. The method according to claim 8, characterized in that the means for moving the injection needle assembly is a carousel (19) of injection needles containing at least one carousel tape (35) on which at least one assembly (18, 18' ) injection needles, preferably at least two injection needle assemblies (18, 18') are installed, or a combination of means for moving the injection needle assembly along the X axis, preferably a sled (22) for performing injection with sled moving means (23) that move the assembly (18, 18') injection needles in the transverse direction, and means (24) for moving the injection needle assembly along the Y axis, preferably pneumatic means, hydraulic means or electromechanical means, which moves the injection needle assembly (18, 18') in the vertical direction. 10. The method according to claim 8 or 9, characterized in that each of the injection needles (27) contains a syringe plunger (31) and a syringe barrel (30) or injection needles (27) are divided into groups, with each group of injection needles ( 27) contains a syringe plunger (31) and a syringe barrel (30). 11. Method according to any one of claims 8 to 10, characterized in that the injection needles (27) are cleaned with at least one cleaning agent, preferably said at least one cleaning agent is selected from at least one cleaning plate (34) with holes through which the injection needles (27) can move up and down, brushes, air pulses, a shower, and combinations thereof. 12. The method according to any one of claims 1 to 7, characterized in that the reinforcing material is added to the distributed glued particulate material using a plurality of locally fixed nozzle assemblies that are located above the conveyor (12) in the distribution area, and each of which periodically adds some the amount of reinforcing material in the distributed glued particulate material during the formation of a carpet (13) of the material to be distributed, wherein each nozzle assembly contains a plurality of nozzles (37) that are located on a line perpendicular to the conveyance direction, wherein the nozzle assemblies are arranged sequentially in the conveyance direction on the same distance from each other, and at the same time, the speed of the conveyor (12) and the periodic addition of material by the nodes of the nozzles are synchronized so that the reinforcing material is added by each node of the nozzle to the same predetermined area of the distributed glued particulate material. 13. The method according to any one of the preceding claims, characterized in that an additional reinforcing material is added to the distributed glued particulate material parallel to the direction of transport by spraying, spraying and/or injection during the formation of the mat (13) from the spread material and/or after the formation of said carpet (13) and before any pressing of said mat (13), so that the spread material mat (13) additionally has at least one longitudinal reinforced zone. 14. Method according to any of the preceding claims, characterized in that the adhesive and the reinforcing material are the same material, wherein the adhesive and/or the reinforcing material is selected from the group consisting of urea-formaldehyde resins, resorcinol-formaldehyde resins, phenol-formaldehyde resins, polyurethane resins, epoxy resins, cyanoacrylates, polyvinyl acetates, methylene diphenyl diisocyanate resins and mixtures thereof. 15. A method according to any one of the preceding claims, characterized in that the wood particulate material is selected from the group consisting of wood fibres, wood dust, wood shavings, wood strands and mixtures thereof. 16. Method according to any one of the preceding claims, characterized in that the plate (15) is cut or sawn at least once in the transverse direction of the plate (15) into several plates (15), while by cutting or sawing the plate (15) into in the transverse direction, the plate (15) is cut or sawn in said at least one transverse hardened zone. 17. The method according to claim 16, characterized in that each plate of said several plates (15) is provided with at least one top layer, while said at least one top - 27 040757 the layer is preferably selected from the group consisting of primer layers, decorative layers, polymer layers, lacquer layers, soundproofing layers, moisture barrier layers, wear-resistant layers, protective layers and combinations thereof. 18. Plate (15) for the manufacture of panels (1), manufactured by the method according to any one of claims 1 to 17, while the plate (15) has an upper surface and a lower surface, a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, while the plate contains at least one transverse hardened zone (6, 6') containing a reinforcing material. 19. Plate (15) according to claim 18, characterized in that it (15) is an endless plate. 20. The plate (15) according to claim 18 or 19, characterized in that it (15) has several transverse hardened zones (6, 6'), which are preferably located at the same distance from each other. 21. A plate according to any one of claims 18-20, characterized in that the size of said at least one transverse hardened zone (6, 6') in the longitudinal direction of the plate (13) is from 6 to 140 mm, preferably from 12 to 90 mm, more preferably 20 to 50 mm. 22. The plate according to any one of claims 18-21, characterized in that said at least one transverse hardened zone (6, 6') has two transverse edges that are parallel to the transverse direction of the plate (15), while said at least one transverse hardened zone (6, 6') contains two transverse hardened subzones containing a reinforcing material, and one transverse cutting zone that does not contain a reinforcing material and is located between two transverse hardened subzones in such a way that the distance from it to both transverse edges indicated by at least one transverse hardened zone equally. 23. The slab according to any one of claims 18-22, characterized in that said at least one transverse reinforced zone has two transverse edges that are parallel to the transverse direction of the carpet (13) of the spreading material, and contains a transverse central region that is parallel to the transverse the direction of the carpet (13) of the spreading material, while the concentration of the reinforcing material gradually decreases from the transverse central region to one or both of the two transverse edges of the said at least one reinforced zone (6, 6'). 24. Plate (15) according to any one of claims 18-23, characterized in that the distance to said at least one transverse hardened zone (6, 6') from the upper and/or lower surface of the plate (15) is at least 5 mm, preferably at least 10 mm, more preferably at least 20 mm, most preferably at least 30 mm, or said at least one transverse hardened zone (6, 6') extends essentially through the entire thickness of the board (15). 25. Board (15) according to any one of claims 18 to 24, characterized in that it is particle board, oriented strand board, medium density fibreboard or high density fibreboard. 26. Plate (15) according to any one of claims 18-25, characterized in that it has additional corner hardened zones (36) extending from said at least one transverse hardened zone (6, 6') in the longitudinal direction of the plate ( 13), wherein preferably the size of each additional corner hardened zone (36) is less than or equal to the size of said at least one transverse hardened zone (6, 6') in the longitudinal direction of the plate (15). 27. A method for manufacturing a carpet (13) from a material to be distributed, including the following steps: a) use of particulate material containing or consisting of wood particulate material, b) production of a glued particulate material by adding glue to the particulate material, c) forming a carpet (13) from a spreading material having a longitudinal direction and a transverse direction perpendicular to the longitudinal direction, by uniformly distributing the glued particulate material on a conveyor (12), on which the distributed glued particulate material is moved in a transport direction that is parallel to the longitudinal direction of the carpet (13) from the spreading material, while the glued particulate material is distributed on the conveyor (12) along the length of the distribution section passing in the transport direction, so that in the transport direction the distributed glued particulate material accumulates on the carpet (13) of the spreading material along the length of the distribution section , wherein a reinforcing material is added to the distributed glued particulate material perpendicular to the direction of transport by spraying, spraying and/or injection during the formation of the carpet (13) from the material to be distributed and/or after the formation of the specified th carpet (13) and before any pressing of said carpet (13) in such a way that the carpet (13) of the spreading material has at least one transverse reinforced zone (6, 6') containing the reinforcing material. 28. Carpet (13) of the distributed material, manufactured by the method according to claim 27, while the carpet (13) of the distributed material has an upper surface and a lower surface, a longitudinal direction and a transverse direction, and the specified carpet (13) contains at least one - 28 040757 transverse hardened zone (6, 6') containing a reinforcing material. 29. A method for manufacturing panels (1), which includes the features of the method according to any one of claims 1 to 17, wherein the plate (15) is cut or sawn into several panels (1) at least once in the longitudinal direction of the plate (15) and along at least once in the transverse direction of the plate (15), while cutting or sawing the plate (15) in its transverse direction, the plate (15) is cut or sawn in the specified at least one transverse hardened zone (6, 6'), so that each of the obtained panels (1) contains at least one hardened edge. 30. The method according to claim 29, characterized in that, at least on said at least one hardened edge of each panel (1), the locking profile element (4, 5) is machined, preferably pressed or milled, while the locking profile element (4, 5) is preferably selected from the group consisting of tongues, protrusions, hooks, grooves, self-locking surfaces and combinations thereof. 31. The method according to claim 29 or 30, characterized in that the plate (15) additionally has at least one longitudinal hardened zone, and when cutting or sawing the plate (15) in its longitudinal direction, the plate (15) is cut or sawn in the specified at least one longitudinal hardened zone. 32. Panel (1) manufactured by the method according to any one of claims 29-31, wherein the panel (1) has two longitudinal edges (2, 2') and two transverse edges (3, 3'), while along at least one of the longitudinal edges (2, 2') and/or along at least one of the transverse edges (3, 3') there is a reinforced zone (6, 6') containing a reinforcing material, so that the panel (1) contains at least at least one hardened edge. 33. Panel (1) according to claim 32, characterized in that along each of the longitudinal edges (2, 2') and/or along each of the transverse edges (3, 3') there is a reinforced zone (6, 6'), containing a reinforcing material. 34. Panel (1) according to claim 32 or 33, characterized in that it has additional corner hardened zones (36) extending from said at least one hardened zone (6, 6') in a direction perpendicular to the edge along which a hardened zone (6, 6') is located, while the size of each additional corner hardened zone (36) is less than or equal to twice the width of the specified at least one transverse hardened zone (6, 6'). 35. Use of the panel (1) according to any one of claims 32 to 34 as a floor panel, wall panel and/or ceiling panel. 36. A device for the manufacture of at least one plate (15) intended for the manufacture of panels (1), containing a gluing device for adding glue to a particulate material that contains or consists of a wood particulate material and, thereby, to obtain a glued particulate material, a conveyor (12) on which the glued particulate material can be transported in the conveying direction, a distributing head (11) for evenly distributing the glued particulate material on the conveyor (12) within the distribution area, so that a carpet can be formed on the conveyor (12) (13) of spreading material, having a longitudinal direction parallel to the conveying direction, and a transverse direction perpendicular to the longitudinal direction of the specified carpet (13), and at the same time, the distributed glued particulate material accumulates in the carpet (13) of the distributed material in the conveying direction along the length of the section distribution, by men at least one press (14) with a continuous belt for the production of a board (15) by pressing a carpet (13) of the material to be distributed and at least one reinforcing material addition means for adding a reinforcing material to the distributed glued particulate material during the formation of the carpet ( 13) from the material to be spread and/or after the formation of said carpet (13) and before any pressing of said carpet (13) in such a way that the carpet (13) of the material to be spread has at least one transverse reinforced zone (6, 6'), containing a reinforcing material. 37. The device according to claim 36, characterized in that said at least one means for adding a reinforcing material is at least one injection needle assembly (18, 18') with injection needles (27), while the device further comprises a means for moving the injection needle assembly on which the injection needle assembly (18, 18') is mounted, preferably the injection needle assembly moving means is configured to move the injection needle assembly (18, 18') in the vertical and horizontal direction, so that at the beginning of the section for injection, the injection needle assembly (18, 18') can move down to allow the injection needles (27) to penetrate the distributed glued particulate material in the vertical direction, and then the injection needle assembly (18, 18') can move in the transport direction with the same the speed at which the distributed glued particulate material is transported - 29 040757 rial, while at the same time the reinforcing material can be injected into the distributed glued particulate material using injection needles (27), and at the end of the injection section, the injection needle assembly (18, 18') can move upward to ensure that the injection needles ( 27) of the distributed glued solid particulate material in the vertical direction, and then the injection needle assembly (18, 18') can be moved back to the beginning of the injection site. 38. The device according to claim 37, characterized in that the means for moving the injection needle assembly is made as a carousel (19) of injection needles, containing at least one carousel tape (35), on which at least one assembly (18, 18' ) injection needles, preferably on which at least two injection needle assemblies (18, 18') are installed, or a combination of means for moving the injection needle assembly along the X axis, preferably a sled (22) for performing injection with a sled moving means (23) made with the possibility of moving the node (18, 18') of the injection needles in the horizontal direction, and the means (24) for moving the node of the injection needles along the Y axis, preferably pneumatic means, hydraulic means or electromechanical means, made with the possibility of moving the node (18, 18') injection needles in the vertical direction. 39. The device according to claim 37 or 38, characterized in that each of the injection needles (27) contains a syringe plunger (31) and a syringe barrel (30), or the injection needles (27) are divided into groups, with each group of injection needles (27) contains a syringe plunger (31) and a syringe barrel. 40. Device according to any one of claims 37 to 39, characterized in that it further comprises at least one cleaning agent for cleaning the injection needles (27), said at least one cleaning agent being preferably selected from at least one cleaning plate (34) with holes through which injection needles (27) can move up and down, brushes, air pulses, showers, and combinations thereof. 41. The device according to claim 36, characterized in that said at least one reinforcing material addition means is a plurality of locally fixed nozzle assemblies that are located above the conveyor (12) in the distribution section, and each of which is configured to periodically add some the amount of reinforcing material into the distributed glued particulate material during the formation of a carpet (13) of the material to be distributed, each nozzle assembly comprising a plurality of nozzles (37) which are located on a line perpendicular to the conveyance direction, the nozzle assemblies being arranged sequentially in the conveyance direction on the same distance from each other, while the device is designed in such a way that the speed of the conveyor (12) and the periodic addition of material by the nodes of the nozzles are synchronized, so that the reinforcing material is added by each node of the nozzles to the same predetermined area of the distributed glued material. 42. The device according to any one of claims 36-41, characterized in that it contains a device for cutting or sawing the plate (15) in the transverse direction of the plate (15) into several plates (15), while the device for cutting or sawing the plate ( 15) in the transverse direction is located and made in such a way that the plate is cut or sawn in the specified at least one transverse hardened zone (6, 6'). 43. Device according to any one of claims 36-42, characterized in that it comprises a device for providing the plate (15) with at least one top layer, which is preferably selected from the group consisting of printing devices, coating devices, devices for sprayers, sprayers and combinations thereof. 44. Device for the manufacture of panels (1), having features of any of claims 36-43, characterized in that it contains at least one device for cutting or sawing the plate (15) in its longitudinal direction, preferably a rip saw, and / or at least one device for cutting or sawing the plate (15) in the transverse direction, preferably a diagonal saw. 45. The device according to claim 44, characterized in that said at least one device for cutting or sawing the plate (15) in the transverse direction is located and designed in such a way that the plate is cut or sawn in said at least one transverse hardened zone ( 6, 6'), wherein preferably the device for cutting or sawing the board (15) is synchronized with said at least one reinforcing material addition means and conveyor (12). 46. The device according to claim 44 or 45, characterized in that it contains a device for machining the locking profile element (4, 5) on at least one hardened edge of each panel (1, 1', 1''), while the device for processing the locking profile element (4, 5) is preferably a milling machine. -