JP2007008053A - Manufacturing method of plastic-processed timber and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a processing time in compression-processing timber and to obtain a product having a stable quality without causing a swell after work. <P>SOLUTION: The timber NW on an auxiliary plate SB is placed in an inner space IS of a hot press machine 100A and heat-compressed. While the tightly sealed state of the inner space IS is kept for a predetermined time, moisture contained in the timber NW is vaporized and freely passes via the inner space through the circumferential surface and the inner side of the timber NW to uniformly fix the timber NW. After the heat-compression and fixation of the timber, the press is switched off for a short time. Even if the surface temperature falls off somewhat, it is possible to delay generation of swell deformation. It is possible to manufacture a plastic-processed timber PW1 having a stable quality without swell deformation by immediately cooling and compressing the timber with a cooling press disk 100B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plastic-processed wood manufacturing apparatus and a method for manufacturing the same, which can increase the hardness by compression molding wood, and can be used as a building material such as a flooring of a house, for example.

  Conventionally, when press working, the periphery of the wood is sealed, the moisture contained in the wood is confined in the wood, and the heat compression treatment is performed at high temperature and high pressure. Is known not to return. However, if such wood is taken out of the press immediately after processing, there is a problem that bulge deformation called puncture is likely to occur on the surface of the wood due to the action of high-temperature and high-pressure steam pressure contained in the wood. there were. In order to cope with this, conventionally, plastic processing wood (compressed wood) has only been manufactured by cooling the press while maintaining the pressed state after heat treatment of wood. However, repetition of such a process has a problem that it takes time as well as useless energy consumption accompanying reheating of the press.

Therefore, in Patent Document 1, for the purpose of preventing the occurrence of bulge deformation on the surface of the heat-compressed wood without consuming much energy and time, the wood is compressed into a sealed space by a heat press process. A technique is disclosed in which the inside of a sealed space is depressurized while being kept in a pressed state after being confined and the moisture in the wood is pressurized and vaporized to be fixed in a compressed deformation state. According to this, since the vapor pressure contained in the wood is released into the sealed space, even if the wood is taken out from the heat press machine in a heated state after the heat press treatment, the occurrence of bulge deformation on the surface is prevented. a.
JP-A-8-90516

  However, as disclosed in Patent Document 1, it is difficult to quickly remove the high-temperature and high-pressure vapor pressure contained in the wood simply by reducing the pressure in the sealed space. However, in the case of a thick plate material, it is impossible to completely suppress the bulge deformation after the hot press treatment, and there is a problem that the quality as a product is deteriorated if the bulge deformation occurs to some extent. In particular, in the case of a wood board such as a flooring material having a thickness of 30 mm or less, the bulging deformation after the heat press treatment may appear as a curved surface of the whole board material, and the quality as a board material is deteriorated. There was a problem.

  Accordingly, the present invention has been made to solve such a problem, and is capable of shortening the processing time in the compression processing of wood, and manufacturing plastically processed wood that can manufacture a stable quality product that does not cause deformation after processing. An object is to provide an apparatus and a method for manufacturing the same.

  The plastic working wood manufacturing apparatus according to claim 1 forms an internal space having compression surfaces facing each other by a structure divided into a plurality of parts, and a heat press machine capable of being heated and compressed by changing the volume of the internal space; Compressed at a predetermined pressure in a direction perpendicular to the length direction of the wood grain having a thickness of 30 [mm] or less placed in the internal space at a predetermined temperature of the heating press panel, and the internal space is kept in a sealed state And when the internal space is held in a hermetically sealed state by the heat compression processing control means that opens it after a predetermined time has passed, the high temperature of the peripheral surface of the wood through the internal space Vapor pressure control means for controlling high-pressure vapor pressure and temporarily fixing the wood by the vapor pressure control and a compression surface facing each other are formed by a structure divided into a plurality of parts, and the distance between the compression surfaces is changed. Make The cooling press board that can be cooled and compressed freely, and the wood temporarily fixed by the vapor pressure control taken out from the heating press board are immediately placed on the cooling press board, and the heat-compressed surface is kept at a predetermined temperature. And a cooling compression processing control means for making the plastically processed wood fixed by forcibly cooling and compressing at a predetermined pressure, fixing the wood and releasing it after a predetermined time has elapsed.

Here, in the case of carrying out the present invention, a heating press plate and a cooling press plate having a compression surface facing each other and forming an internal space with a plurality of divided structures are simply divided into upper and lower press plates. It can be constituted by a plurality of structures such as a structure, a structure composed of an upper and lower press board and a frame.
In addition, heating and compressing in the direction perpendicular to the length direction of the wood grain means that at least the area of the mouth end surface is reduced by heating and compressing the surface of the grain or the surface of the wood other than the end face of the wood. In addition, the directionality of the heat compression by the hot press machine is specified. In addition, the surface of the wood to be heat-compressed is preferably selected in the direction of heat-compression in consideration of the type of wood.
The vapor pressure control means in the case of carrying out the present invention is the surface on the compression surface side as the peripheral surface of the wood through the internal space when the heat compression processing control means is kept in a sealed state, and further the inside It is only necessary to control the supply and discharge of the high-temperature and high-pressure vapor pressure entering and exiting. In addition, the temporary fixing of the wood by the vapor pressure control is not limited as long as it can maintain the volume state that is heated and compressed by the heating press board. For this reason, the surface is heated temporarily to be in a dry state. It also includes a technique for releasing the vapor pressure of the internal space when it is held in a sealed state by the compression processing control means and heating it at a low pressure.
Further, the cooling compression processing control means in the case of carrying out the present invention immediately puts the wood temporarily fixed on the wood by the vapor pressure control taken out after the processing by the heat compression processing control means to the cooling press board. What is necessary is just to control so that it can transfer to the forced cooling compression which fixes the said wood, mounting | wearing and maintaining the state of the surface heat-compressed with the heating press board.
The outline of the present invention is that, as described above, the heat compression processing control means heats and compresses the wood, the vapor pressure control means temporarily fixes the wood, and the cooling compression processing control means fixes the wood. In this way, plastically processed wood that has been completely fixed is obtained.

In addition to the requirement described in claim 1, the plastic working wood manufacturing apparatus according to claim 2 is provided with a convex having a predetermined cross-sectional shape so as to bite into the wood on at least one compression surface side. A shaped part is formed.
Here, in the case of carrying out the present invention, the convex portion having a predetermined cross-sectional shape enough to bite into the wood is such that processing distortion does not occur in the heat-compressed wood and the quality as a product is not impaired. The cross-sectional shape is desirable, and it is preferable to form as many convex portions as possible. In particular, since the bite into the wood and the wood that reaches the bite is brought to the same temperature, pressure and humidity (steam pressure) as the internal space, the extent of the bite is the thickness of the wood. If there is not so much, a shallow structure may be used.
In addition, the convex part formed on at least one compression surface side in the heating press panel means that the convex part may be formed on both compression surface sides depending on the embodiment of the present invention. To do.

In addition to the requirement according to claim 1, the plastic working wood manufacturing apparatus according to claim 3 has a concave shape having a predetermined cross-sectional shape communicating with the internal space on at least one compression surface side of the hot press machine. The part is formed.
Here, the recessed part which consists of predetermined | prescribed cross-sectional shape connected with internal space in the case of implementing this invention is the temperature and pressure state, humidity (vapor pressure) similar to internal space on the compression surface of the timber to be heat-compressed. Since it is to be in a state, it may be a cross-sectional shape that does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product, and can be in the fiber direction of the wood or the direction intersecting with it. It is preferable to form as many concave portions as possible. In addition, the concave portion in the case of carrying out the present invention is, in other words, a groove portion formed on the compression surface of the wood of the hot press machine, and the cross-sectional shape is U-shaped, V-shaped, trapezoidal, etc. Any shape can be used as long as it is easy to remove the plastically processed wood.
In addition, the recessed part formed in the at least one compression surface side in a heating press board means that a recessed part may be formed in both the compression surface side depending on embodiment of this invention.

In addition to the requirement according to claim 1, the plastic working wood manufacturing apparatus according to claim 4 is a gap forming member that forms a gap with the wood on at least one compression surface side of the hot press disc. Is provided.
Here, the gap forming member that forms a gap with wood in the case of carrying out the present invention means that the compression surface of the wood to be heated and compressed is in the same temperature and pressure state as the internal space, and in the humidity (vapor pressure) state Therefore, it is sufficient that the surface of the heat-compressed wood does not undergo processing strain, and the surface irregularity shape does not impair the quality of the product, and as many gaps as possible with respect to the compressed surface of the wood. Is preferably formed.
Note that the gap forming member disposed on at least one compression surface side in the heating press panel may be disposed on both compression surface sides depending on the embodiment of the present invention. Means.

In addition to the requirement according to claim 1, the plastic working wood manufacturing apparatus according to claim 5 leads to fixing by forcedly cooling and compressing the wood from the start of heat compression processing by the heating press platen. Through the end of processing, it is processed in a state where it is placed on a conveyance auxiliary tool made of a material having the same or higher thermal conductivity.
Here, from the start of processing of heat compression by a heating press disk in the case of carrying out the present invention to the end of processing by a cooling press disk that is fixed by forced cooling compression, until the cooling compression from the heat compression to the fixing of wood. This means that the material is processed while being placed on one conveyance auxiliary tool.
In addition, the conveyance auxiliary tool for carrying out the present invention can be placed in a state where the entire compression surface of the wood is in contact with the internal space of the heating press board, and is taken out from the heating press board and placed on the cooling press board as it is. For example, a partial step or a hole for gripping is preferably formed on the outer peripheral edge of the outer peripheral edge so as to be gripped and taken out from the outside and to facilitate the transfer operation.
In addition, as a conveyance auxiliary tool in practicing the present invention, the thermal conductivity is equal to or higher than that of a heating press plate or a cooling press plate, and the surface accuracy is such that the quality of the wood product is not impaired, and the press strength What is necessary is just to have.

The plastic working wood manufacturing method according to claim 6 is a heating press board that is capable of being heated and compressed by forming an internal space having a compression surface facing by a structure divided into a plurality of parts, and changing the volume of the internal space. Heating and compressing at a predetermined temperature and a predetermined pressure in a direction perpendicular to the length direction of wood grain having a thickness of 30 [mm] or less placed in the internal space, and holding the internal space in a sealed state, A heat compression process control step for releasing it after a lapse of time, and a high-temperature and high-pressure steam on the peripheral surface of the wood through the internal space when the internal space is kept in a sealed state in the heat compression process control step A pressure control step, a vapor pressure control step of temporarily fixing the wood by the vapor pressure control, and a compression surface facing each other by a structure divided into a plurality of parts, and changing the distance between the compression surfaces Yo The wood temporarily fixed by the vapor pressure control taken out from the heating press board is immediately placed on a cooling press board that can be cooled and compressed, and the heat-compressed surface is forcibly cooled and compressed at a predetermined temperature and a predetermined pressure. And a cooling compression processing control step for fixing the wood and releasing it after elapse of a predetermined time to obtain a fixed plastic working wood.
Here, in the case of carrying out the present invention, a heating press plate and a cooling press plate having a compression surface facing each other and forming an internal space with a plurality of divided structures are simply divided into upper and lower press plates. It can be constituted by a plurality of structures such as a structure, a structure composed of an upper and lower press board and a frame.
In addition, heating and compressing in the direction perpendicular to the length direction of the wood grain means that at least the area of the mouth end surface is reduced by heating and compressing the surface of the grain or the surface of the wood other than the end face of the wood. In addition, the directionality of the heat compression by the hot press machine is specified. It should be noted that the preferred heat compression surface of the wood is selected in consideration of the type of wood and the like.
And the vapor pressure control process in the case of carrying out the present invention includes the surface on the compression surface side as the peripheral surface of the wood through the internal space when kept in the sealed state in the heat compression processing control process, and the inside thereof. What is necessary is just to control so that the vapor pressure of the high temperature and the high pressure which goes in and out is increased. In addition, it is only necessary to promote the fixation of wood by controlling the vapor pressure as long as it can maintain the volume state that has been heated and compressed by the heating press board. For this reason, the surface is temporarily heated and compressed to be in a dry state. It also includes a technique for releasing the vapor pressure of the internal space when kept in a sealed state in the control process.
Furthermore, the cooling compression processing control step in the case of carrying out the present invention is such that the wood is temporarily fixed by the vapor pressure control taken out after finishing the processing in the heat compression processing control step, and the wood is immediately placed. What is necessary is just to control so that it can transfer to the forced cooling compression which fixes the said wood, keeping the state of the surface heat-compressed with the heating press board.

According to a seventh aspect of the plastic working wood manufacturing method of the present invention, in addition to the requirement of the sixth aspect, the heating press panel has a convex portion having a predetermined cross-sectional shape so as to bite into the wood on at least one compression surface side. A shaped part is formed.
Here, in the case of carrying out the present invention, the convex portion having a predetermined cross-sectional shape enough to bite into the wood is the same temperature as the internal space up to the position of the wood that bites into the wood and reaches the bited-in position. Because it is in a pressure state and humidity (vapor pressure) state, it should have a cross-sectional shape that does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product. It is preferable to form a convex part. In addition, the depth of biting may be a shallow structure when the thickness of the wood is not so great.
In addition, the convex part formed on at least one compression surface side in the heating press panel means that the convex part may be formed on both compression surface sides depending on the embodiment of the present invention. To do.

In addition to the requirement according to claim 6, the plastic working wood manufacturing method according to claim 8 has a concave shape having a predetermined cross-sectional shape communicating with the internal space on at least one compression surface side of the hot press disc. The part is formed.
Here, the recessed part which consists of predetermined | prescribed cross-sectional shape connected with internal space in the case of implementing this invention is the temperature and pressure state, humidity (vapor pressure) similar to internal space on the compression surface of the timber to be heat-compressed. Since it is to be in a state, it may be a cross-sectional shape that does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product, and can be in the fiber direction of the wood or the direction intersecting with it. It is preferable to form as many concave portions as possible. In addition, the concave portion in the case of carrying out the present invention is, in other words, a groove portion formed on the compression surface of the wood of the hot press machine, and the cross-sectional shape is U-shaped, V-shaped, trapezoidal, etc. Any shape can be used as long as it is easy to remove the plastically processed wood.
In addition, the recessed part formed in the at least one compression surface side in a heating press board means that a recessed part may be formed in both the compression surface side depending on embodiment of this invention.

The plastic working wood manufacturing method according to claim 9 is characterized in that, in addition to the requirement according to claim 6, a gap forming member that forms a gap with the wood on at least one compression surface side of the hot press disc. Is provided.
Here, the gap forming member that forms a gap with wood in the case of carrying out the present invention means that the compression surface of the wood to be heated and compressed is in the same temperature and pressure state as the internal space, and in the humidity (vapor pressure) state As a result, it is only necessary to have a surface irregularity shape that does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product. It is preferable to form many gaps.
Note that the gap forming member disposed on at least one compression surface side in the heating press panel may be disposed on both compression surface sides depending on the embodiment of the present invention. Means.

In addition to the requirement according to claim 6, the plastic working wood manufacturing method of claim 10 passes through from the start of processing by heat compression by the heating press plate to the end of processing from fixing to the cooling press plate, They are processed in a state where they are placed on a conveyance auxiliary tool made of a material having the same or higher thermal conductivity.
Here, when the present invention is carried out, from the start of processing by heat compression by a heating press plate to the end of processing from fixing by a cooling press plate, the wood is mounted on one conveyance auxiliary tool from heat compression to cooling compression. It means that it is processed in the placed state.
In addition, the conveyance auxiliary tool for carrying out the present invention can be placed in a state where the entire compression surface of the wood is in contact with the internal space of the heating press board, and is taken out from the heating press board and placed on the cooling press board as it is. For example, a partial step or a hole for gripping is preferably formed on the outer periphery of the outer periphery so that it can be easily gripped and taken out.
In addition, as a conveyance auxiliary tool in practicing the present invention, the thermal conductivity is equal to or higher than that of a heating press plate or a cooling press plate, and the surface accuracy is such that the quality of the wood product is not impaired, and the press strength Is required.

  According to the plastically processed wood manufacturing apparatus of claim 1, the volume of the internal space having the opposing compression surface formed by the structure divided into a plurality of parts is changed, so that the heating press can be heated and compressed, The compression processing means is heated and compressed at a predetermined pressure in a direction perpendicular to the length direction of the wood grain having a thickness of 30 mm or less placed in the internal space at a predetermined temperature, and the internal space is kept in a sealed state. After that, the wood is temporarily fixed by vapor pressure control, and it is released. That is, when the internal space is held in a sealed state, the vapor pressure control means controls the high-temperature and high-pressure vapor pressure on the peripheral surface of the wood through the internal space, and the temporary fixation of the wood by the vapor pressure control. Is made. Then, in the cooling compression processing control means, the wood temporarily fixed by the vapor pressure control taken out from the heating press plate is immediately applied to the cooling press plate in which the compression surfaces facing each other are formed by the divided structure. The surface of the wood that has been placed and heated and compressed is forcibly cooled and compressed to fix the wood, and is released after a predetermined time.

  In other words, the wood placed in the internal space of the heat press machine by the heat compression processing control means is heated and compressed in the direction perpendicular to the length direction of the grain, and the internal space is kept in a sealed state. After the high-temperature and high-pressure vapor pressure on the peripheral surface of the wood is controlled by the vapor pressure control means through the space, the wood is temporarily fixed by the vapor pressure control, and the sealed state is opened after a predetermined time. This vapor pressure is a result of evaporation of moisture contained in the wood by heating, and this vapor pressure enters and exits the surrounding surface of the wood, and further inside and inside the space, thereby temporarily fixing by the above-mentioned vapor pressure control. And the wood is temporarily fixed uniformly. Then, the wood temporarily fixed by the vapor pressure control taken out from the heating press board is immediately placed on the compression surface of the cooling press board by the cooling compression processing control means, and the heated and compressed surface is forcibly cooled and compressed. After a predetermined time has elapsed, the wood is opened after fixing. As a result, the wood is heated and compressed, temporarily fixed in a sealed state, and then immediately cooled and compressed, so that the processing time in the compression processing of the wood is shortened and the wood is temporarily fixed and then deformed. Since it cools under the pressure state which does not generate | occur | produce, fixation is stabilized, and the fixed plastic processing wood with a sufficient quality can be manufactured by it.

  In the plastically processed wood manufacturing apparatus according to claim 2, in addition to the effect according to claim 1, a convex portion having a predetermined cross-sectional shape is formed on at least one compression surface side of the hot press disk so as to bite into the wood. As a result, the vapor pressure entering and exiting the peripheral surface of the wood, in particular, the surface on the compression surface side, and the inside and the internal space thereof is increased, and the wood is uniformly heated and compressed with high efficiency. As a result, after the wood is temporarily fixed by steam pressure control in the heat-compressed state, it is taken out from the internal space of the hot press machine and is not deformed until it is compressed by the cooling press machine for fixing the wood. In addition, by fixing the wood under a compressed state, it is possible to produce a plastic-processed wood having a stable quality.

  In the plastically processed wood manufacturing apparatus of claim 3, in addition to the effect of claim 1, a concave portion having a predetermined cross-sectional shape communicating with the internal space is formed on at least one compression surface side of the hot press machine. As a result, the vapor pressure entering and exiting the peripheral surface of the wood, in particular, the surface on the compression surface side, and the inside and the internal space thereof is increased, and the wood is temporarily fixed by vapor pressure control. Is more uniformly heated and compressed. As a result, after the wood is temporarily fixed by steam pressure control in the heat-compressed state, it is taken out from the internal space of the hot press machine and is not deformed until it is compressed by the cooling press machine for fixing the wood. In addition, by fixing the wood under a compressed state, it is possible to produce a plastic-processed wood having a stable quality.

  In the plastic working wood manufacturing apparatus of claim 4, in addition to the effect of claim 1, a gap forming member for forming a gap with the wood is disposed on at least one compression surface side of the hot press disk. As a result, the vapor pressure entering and exiting the surface on the compression surface side of the wood, as well as the inside and the internal space thereof, increases, and the wood is heated and compressed more uniformly. As a result, after the wood is temporarily fixed by steam pressure control in the heat-compressed state, it is taken out from the internal space of the hot press machine and is not deformed until it is compressed by the cooling press machine for fixing the wood. In addition, by fixing the wood under a compressed state, it is possible to produce a plastic-processed wood having a stable quality.

  In the plastically processed wood manufacturing apparatus according to claim 5, in addition to the effect of claim 1, the processing time in heating compression and cooling compression is extended from the start of processing by the hot press machine to the end of processing by the cooling press board. In order to prevent the quality from degrading or reducing the quality, the heat conductivity is compressed while being placed on the conveyance auxiliary tool made of the same or better material as the heating press plate or cooling press plate. Therefore, it is easy to move from the heating press board to the cooling press board, and plastic processed wood with stable quality can be manufactured.

  According to the plastic working wood manufacturing method of claim 6, the heating press machine that is heat compressible by changing the volume of the internal space having the opposing compression surface formed by the structure divided into a plurality of parts, The inner space is kept in a hermetically sealed state by heating and compressing at a predetermined pressure in a direction perpendicular to the length direction of the grain of wood having a thickness of 30 mm or less placed in the inner space at a predetermined temperature by the compression process control process. Then, it is released after a lapse of a predetermined time when the wood is temporarily fixed by vapor pressure control. That is, when the internal space is kept in a sealed state, the vapor pressure control process controls the high-temperature and high-pressure vapor pressure on the peripheral surface of the wood through the internal space. Thereafter, a temporary fixing process is performed by the vapor pressure control. In the cooling compression processing control step for fixing the plastic processing state of the wood, the compression surface opposed by the structure divided into a plurality of the wood temporarily fixed by the vapor pressure control taken out from the hot press machine is provided. It is placed on the formed cooling press board, and the heat-compressed surface of the wood is forcibly cooled and compressed, and after a predetermined time elapses, fixing is completed and released.

  That is, the wood having a thickness of 30 [mm] or less placed in the internal space of the heat press machine by the heat compression processing control process is heated and compressed in a direction perpendicular to the length direction of the grain, and the internal space is sealed. The high temperature and high pressure vapor pressure on the peripheral surface of the wood is controlled by the vapor pressure control process through the internal space at this time, and then the sealed state is opened after a predetermined time. This vapor pressure is a result of evaporation of moisture contained in the wood by heating, and this vapor pressure enters and exits the surrounding surface of the wood, and further inside and inside the wood, so that the wood is uniformly heated and compressed, Thereafter, the wood is temporarily fixed by vapor pressure control. Then, the wood temporarily fixed by the vapor pressure control taken out from the heating press platen is placed on the compression surface of the cooling press platen by the cooling compression processing control step for fixing the wood, and is forcibly cooled and compressed for a predetermined time. After the lapse of time, fixing is completed and released. Thereby, after the wood is heated and compressed, the wood is temporarily fixed and fixed by cooling compression, so that the processing time in the wood compression processing is shortened. In addition, the wood is temporarily fixed by steam pressure control in the heat-compressed state, and the plastic-processed wood having a stable quality can be manufactured by fixing the wood in the compressed state.

  In the plastically processed wood manufacturing method according to claim 7, in addition to the effect according to claim 6, a convex portion having a predetermined cross-sectional shape is formed on at least one compression surface side of the hot press disk so as to bite into the wood. As a result, the vapor pressure entering and exiting the peripheral surface of the wood, in particular, the surface on the compression surface side, and the inside and the internal space thereof is increased, and the wood is more uniformly heated and compressed. Thus, after the wood is heated and compressed and fixed in a hermetically sealed state, the wood is immediately taken out from the internal space of the heating press board and placed on a cooling press board for fixing the wood, and the deformation is also performed. It is possible to produce a plastic-processed wood having a fixed quality that does not occur and is stable by fixing.

  In the plastic working wood manufacturing method according to claim 8, in addition to the effect according to claim 6, a concave portion having a predetermined cross-sectional shape communicating with the internal space is formed on at least one compression surface side of the hot press disk. As a result, the vapor pressure entering and exiting the surrounding surface of the wood, in particular, the surface on the compression surface side, and the inside and the internal space of the wood increases, and the wood is compressed more uniformly at a high temperature. As a result, the wood is heat-compressed, fixed in a sealed state, then taken out from the internal space of the hot press machine, and deformed even when the wood is compressed and placed on a cooling press machine for fixing the wood. In addition, it is possible to produce a plastically-processed wood having a stable quality by fixing and having a stable quality.

  In the plastic working wood manufacturing method of claim 9, in addition to the effect of claim 6, a gap forming member for forming a gap with the wood is disposed on at least one compression surface side of the hot press machine. As a result, the vapor pressure entering and exiting the peripheral surface of the wood, in particular, the surface on the compression surface side, and the inside and the internal space thereof is increased, and the wood is heated and compressed more uniformly. As a result, after the wood is heated and compressed, it is taken out from the internal space of the heating press board and placed on a cooling press board for fixing the wood without deformation, and by fixing. It is possible to produce a fixed quality plastic processed wood with stable quality.

  In the plastically processed wood manufacturing method according to claim 10, in addition to the effect according to claim 6, the processing time in heat compression and cooling compression is extended from the start of processing of the wood by the hot press machine to the end of processing by the cooling press machine. In order to prevent the quality from deteriorating, the heat conductivity is reduced by heating while being placed on the conveyance aid made of a material equivalent to or better than the heating press plate or the cooling press plate. It becomes easy to move from a hot press plate for compression and temporary fixation to a cooling press plate for fixing, and it is possible to manufacture a fixed plastic processed wood with stable quality by fixing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, since the same symbols or the same reference numerals as those in the first embodiment indicate the same or corresponding components as those in the first embodiment, detailed description thereof is omitted. Only the differences will be described.

[Embodiment 1]
FIG. 1 is a cross-sectional view showing a schematic configuration of a plastic working wood manufacturing apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 100 denotes a plastic working wood manufacturing apparatus. This plastic working wood manufacturing apparatus 100 mainly performs heating compression immediately after the heating press board 100A for carrying out heating compression and the heating compression by the heating press board 100A. It is comprised from the cooling press panel 100B to implement.
Among them, the heating press board 100A is formed in such a manner that the upper press board 11A and the lower press board 21A, which form an internal space IS having opposing compression surfaces by the structure divided into two, and the internal space IS are hermetically sealed. The seal member 14 disposed on the peripheral edge 12 of the upper press board 11A so as to face the peripheral edge 22 of the press board 21A is communicated with the interior space IS from the side surface side of the lower press board 21A. A pipe 41 having a pipe port 41a for discharging the vapor pressure, a pressure gauge P2 for detecting the vapor pressure in the pipe 41, a valve V5 on the downstream side thereof, a drain pipe 42A connected to the valve V5, etc. .

Further, in the upper press board 11A and the lower press board 21A of the heating press board 100A, pipe lines 13A and 23A for raising the temperature to a desired temperature by passing high-temperature vapor pressure are formed. Pipes ST2 and ST3 branched from the steam supply side pipe ST1 and steam discharge side pipes ET1 and ET2 are connected to the pipe lines 13A and 23A, respectively. Further, valves V1, V2, V3 and a pressure gauge P1 for detecting the vapor pressure in the pipe ST1 are arranged in the middle of the pipes ST1, ST2, ST3 on the steam supply side, and the pipes ET1, ET2 on the steam discharge side are arranged. Are connected to the drain pipe 42A through a valve V4. It should be noted that a boiler apparatus for supplying vapor pressure to the pipe ST1, and a press lifting apparatus including a hydraulic mechanism for raising / lowering and pressurizing the upper press board 11A with respect to the lower press board 21A on the fixed side of the heating press board 100A. Is omitted. Here, in the present embodiment, high-temperature vapor pressure is used to heat the interior space IS formed by the upper press platen 11A and the lower press platen 21A of the heating press platen 100A. Heating, microwave heating, or the like can also be used.
In addition, when the upper press board 11A and the lower press board 21A of the heating press board 100A are in a sealed state via the sealing member 14, the dimensional interval in the vertical direction of the internal space IS is determined by the plastic processing wood manufacturing apparatus 100. For example, NW is set to the finished dimension in the thickness direction when the plastic processed wood PW1 has a compression rate of 60%.

  On the other hand, the cooling press board 100B is comprised from the upper press board 11B and the lower press board 21B which form the compression surface which opposes by the structure divided into two. Moreover, in the upper press board 11B and the lower press board 21B of the cooling press board 100B, piping paths 13B and 23B for cooling them to a desired temperature by passing low-temperature cooling water are formed. Pipes ST12 and ST13 branched from the cooling water supply side pipe ST11 and cooling water discharge side pipes ET11 and ET12 are connected to the pipe lines 13B and 23B, respectively. Valves V11, V12, and V13 are arranged in the middle of the cooling water supply side pipes ST11, ST12, and ST13, and the cooling water discharge side pipes ET11 and ET12 are connected to the drain pipe 42B via the valve V14. It is connected. A press including a cooling water supply device for supplying cooling water to the pipe ST11 and a hydraulic mechanism for raising / lowering and pressurizing the upper press board 11B with respect to the lower press board 21B on the fixed side of the cooling press board 100B. The lifting device is omitted.

  Furthermore, regarding the delivery of wood during the processing from the heating press board 100A to the cooling press board 100B, in the present embodiment, specifically, by gripping the tip of the robot arm RA using the robot with the hand TH, FIG. Although it is performed along the route shown by the white arrow, a conveyor or the like can be used together. In short, it is preferable that the delivery is completed as quickly as possible.

  Here, as shown in FIG. 2, the wood NW used in the plastic working wood manufacturing apparatus 100 of the present embodiment is made by sawing the wood NW as a raw material into a predetermined length, width, and thickness in advance. The wood NW is composed of a grain surface (two surfaces of the wood surface and the back of the wood), a mesh surface (two surfaces), and a lip surface (two surfaces). The wood NW has a thickness of 30 [mm] or less and is perpendicular to the length direction of the grain. For example, the back side of the grain surface is placed on an auxiliary plate SB as a transport aid. Heat compression and cooling compression are performed in the state. This auxiliary plate SB is intended to facilitate delivery from the heating press panel 100A to the cooling press panel 100B, and is equal to or higher than the thermal conductivity of the heating press panel 100A and the cooling press panel 100B and can withstand the press pressure. It is made of a metal having a planar strength to obtain. The auxiliary plate SB is formed with a step DL on the outer peripheral edge thereof for easy gripping by the hand TH at the tip of the robot arm RA.

  Next, a process procedure for manufacturing the plastic processed wood PW1 from the raw material wood NW by the plastic processed wood manufacturing apparatus 100 will be described with reference to FIGS. 3 (a) to 3 (f). In FIGS. 3A to 3F, piping on the steam supply side and steam discharge side, piping on the cooling water supply side and cooling water discharge side, and the like are omitted.

First, as shown to Fig.3 (a), upper press board 11A is raised with respect to the lower press board 21A of the fixed side of the hot press board 100A in the plastic working wood manufacturing apparatus 100, and predetermined thickness 30 [mm] beforehand. The wood NW that has been sawn to the following dimensions and placed on the auxiliary plate SB is placed in the internal space IS formed by the upper press board 11A and the lower press board 21A.
Next, as shown in FIG. 3B, the wood NW placed on the auxiliary plate SB is placed on the lower press platen 21A on the fixed side, and the upper press platen 11A is placed on the lower press platen 21A. The pressure is lowered at 0.05 to 0.3 [MPa: megapascal], and is brought into contact with the surface of the wood surface of the wood NW. Then, the vapor pressure of a specific temperature of 110 to 160 [° C.] is passed through the piping path 13A of the upper press board 11A and the piping path 23A of the lower press board 21A, so that the interior space IS is 110 to 160 [° C.]. (Temperature raising treatment time 10 to 25 [min: min]). In the plastically processed wood manufacturing apparatus 100 of the present embodiment, the heating process time of the heating press panel 100A depends on the ambient environment temperature when continuously processed, but requires a long time only at the first startup. Become.

Next, as shown in FIG. 3 (c), the compression pressure of the upper press board 11A is set to 2 to 5 [MPa] with respect to the lower press board 21A on the fixed side, and the wood NW is placed on the upper press board 11A and the lower press board 11A. It is heated and compressed by the press panel 21A (processing time 10 to 40 [min]). At this time, when the compression pressure is 2 to 5 [MPa], the pressure is gradually increased as the temperature of the wood NW increases. The temperature rise of the wood NW is the transmission of the internal temperature of the wood NW, and can be controlled as the transmission time.
When the peripheral edge 12 of the upper press board 11A comes into contact with the peripheral edge 22 of the lower press board 21A, the upper press board 11A and the lower press board 21A are sealed by the seal member 14 disposed on the peripheral edge 12 of the upper press board 11A. The internal space IS formed in is sealed. With the internal space IS sealed, the compression pressure by the upper press platen 11A and the lower press platen 21A is maintained, and a specific temperature of 110 to 160 [° C.] from 150 to 210 [° C.] for 3 to 10 [min]. Increase to a specific temperature.
Note that the compression ratio of the wood NW of the present embodiment is the change in the plate pressure of the wood NW. In this embodiment, the peripheral portion 12 of the upper press plate 11A abuts the peripheral portion 22 of the lower press plate 21A. It will be decided.

Then, in the sealed state of the internal space IS shown in FIG. 3C, the compression pressure of the upper press platen 11A and the lower press platen 21A is maintained, and the internal space IS remains at a specific temperature of 150 to 210 [° C.]. , 40 to 120 [min], and a heat compression process is performed to form plastically processed wood PW1 that does not return when the heat compression of the wood NW is released. At this time, high-temperature and high-pressure vapor pressure can freely enter and leave the peripheral surface of the wood NW and the inside thereof through the internal space IS that is sealed by the upper press platen 11A and the lower press platen 21A.
Note that when the internal space IS is sealed and the heat compression process is performed, the vapor pressure in the internal space IS is detected by the pressure gauge P2 as the vapor pressure control process, and the valve V5 is appropriately opened and closed. Thereby, excess water in the internal space IS based on the moisture content of the wood NW is removed by discharging high-temperature and high-pressure steam pressure from the internal space IS to the drain pipe 42A side through the piping port 41a and the piping 41. Then, the interior space IS is adjusted to have a predetermined vapor pressure. In addition, a predetermined vapor pressure can be supplied to the internal space IS as necessary.

  Next, immediately before opening the internal space IS, by opening the valve V5, high-temperature and high-pressure vapor pressure is discharged from the internal space IS to the drain pipe 42A side through the piping port 41a and the piping 41. At this time, the upper press platen 11A and the lower press platen 21A are maintained at a specific temperature of 150 to 210 [° C.] and dried and heated for a processing time of 0.5 to 15 [min]. By this drying and heating, the wood NW can be provided with a self-holding ability, and a temporary fixing process is performed in which the material that has been in the heated and compressed state is difficult to be deformed even when the pressure is released. This temporary immobilization treatment obtained good results when drying and heating was performed for a treatment time of 0.5 to 15 [min], but according to the experiments by the inventors, the minimum conveyance time is specified. From this, it was estimated that it could be further reduced to 0.5 [min] or less depending on the heating temperature and the vapor pressure discharge capability of the internal space IS.

  Next, after the temporary fixing treatment time of 0.5 to 15 [min], the supply of the vapor pressure for maintaining the upper press plate 11A and the lower press plate 21A at a specific temperature of 150 to 210 [° C.] is temporarily stopped. Is done. Then, as shown in FIG. 3 (d), the upper press platen 11A is quickly moved relative to the fixed presser lower press platen 21A so as not to lower the temperature of the upper press platen 11A and the lower press platen 21A as much as possible. The auxiliary plate SB is gripped by the hand TH at the tip of the robot arm RA, and the wood NW, which has been heated and compressed from the internal space IS, together with the auxiliary plate SB, the upper press plate 11B and the lower press plate of the cooling press plate 100B. It is conveyed between the opposing compression surfaces formed by 21B.

Next, as shown in FIG. 3 (e), the upper press platen 11B is lowered at a pressure of 2 to 5 [MPa] with respect to the lower press platen 21B, and comes into contact with the wood surface side of the grain surface of the wood NW. Let The time during this time was 1 to 3 [min] or less, but during that time, even if the wood NW was moved to be placed on the cooling press panel for fixing the wood NW, until the wood NW started fixing Swelled and no deformation occurred. Then, normal temperature cooling water of about 10 to 25 [° C.] is passed through the pipe path 13B of the upper press board 11B and the pipe path 23B of the lower press board 21B, so that the upper press board 11B and the lower press board 21B have 10 It is cooled to about 40 [° C.] (cooling treatment time 30 to 120 [min]).
And as shown in FIG.3 (f), the upper press board 11B is raised with respect to the fixed-side lower press board 21B, and the plastic working wood PW1 which is the finished product mounted on the lower press board 21B is carried out. Along with the auxiliary plate SB, the series of processing steps is completed.
In the plastically processed wood manufacturing apparatus 100 of the present embodiment, the wood NW is heated and compressed by the heating press panel 100A in the middle of processing, then maintained at a specific temperature, and dried and heated only for a specific processing time. The wood NW can be provided with a self-holding ability by heating, and a temporary fixing process is performed in which the material that has been in a heated and compressed state is difficult to be deformed even when the pressure is released. Thus, in the past, no matter how quickly the heating side press machine is moved to the cooling side press machine, the wood in the middle of processing taken out from the heating side press machine has no previous press pressure, It was possible to improve matters that could not prevent the deformation due to the internal high-pressure steam due to a slight decrease in the surface temperature at that time.

In the plastic working wood manufacturing apparatus 100 according to the first embodiment, when the internal space IS of the upper press platen 11A and the lower press platen 21A is in a sealed state, the peripheral surface of the wood NW and further the internal space IS through the internal space IS. In addition, high-temperature and high-pressure vapor pressure can pass freely, and moisture originally contained in the wood NW is made uniform. Thereafter, by maintaining the upper press platen 11A and the lower press platen 21A at a specific temperature of 150 to 210 [° C.] and performing drying and heating, the vapor pressure is deficient even if the whole wood NW is about to change. It becomes impossible to follow, and the wood NW can be provided with a self-holding ability, and a temporary fixing process in a heated and compressed state can be performed.
In addition, as a matter of course, waste of heat energy and time can be eliminated as compared with the case where a single press press performs heating compression to cooling compression.
For this reason, in a series of processing steps using the heating press board 100A and the cooling press board 100B in the plastic working wood manufacturing apparatus 100 of the present embodiment, the wood heated and compressed by the heating press board 100A is fixed to the cooling press board. After moving to 100B, if the next new wood NW is placed and supply of vapor pressure of 110 to 160 [° C.] to the upper press board 11A and the lower press board 21A is started, It is possible to shift to the processing step as it is.

  In the above-described embodiment, the heating press panel 100A that forms the internal space IS is configured by the two-divided structure of the upper press panel 11A and the lower press panel 21A. However, when the present invention is implemented, However, the present invention is not limited to this, and as shown schematically in FIG. 4 (a), a flat press machine 11a and a square cylindrical side wall press machine 11b are combined to form a flat press machine 11a for the side wall press machine 11b. The O-ring 14a and the like are disposed on the sliding portion of the side peripheral surface of the upper press platen 11A 'and the lower press platen 21A (pipe port 41a, which presses the flat press platen 11a and the side wall press platen 11b in two steps. The heating press panel can be configured by a three-divided structure including the piping 41 and the like. Further, as shown schematically in FIG. 4B, an upper press board 11A ″ in which a flat press board 11c and a rectangular side wall press machine 11d are combined and fixed with bolts 11e and the like. A heating press board can also be comprised by the structure divided into 3 which consists of the press board 21A (The piping port 41a, piping 41 grade | etc., Are abbreviate | omitted).

[Embodiment 2]
FIG. 5 is a cross-sectional view showing a schematic configuration of the plastic working wood manufacturing apparatus according to the second embodiment of the present invention, and FIG. 6 is a diagram showing a protrusion as a convex portion formed on the upper press plate in the heating press plate in FIG. It is a perspective view showing details.
5 and 6, reference numeral 200 denotes a plastically processed wood manufacturing apparatus. This plastically processed wood manufacturing apparatus 200 is mainly immediately after a heating press board 200A for performing heating compression and heating compression by the heating press board 200A. It is comprised from the cooling press panel 100B which implements cooling compression.

  Among them, the heating press board 200A is formed in a state in which the upper press board 110A and the lower press board 21A that form the internal space IS having the compression surfaces facing each other by the structure divided into two and the internal space IS are hermetically sealed. The seal member 14 disposed on the peripheral edge portion 112 of the upper press disk 110A facing the peripheral edge portion 22 of the press board 21A, and the abutment of, for example, the wood back side of the wood grain surface other than the front end of the wood NW A plurality of substantially conical protrusions 15 as convex portions having a predetermined cross-sectional shape formed at a predetermined interval on the upper press disk 110A serving as a surface and biting into the wood NW, and the lower press disk 21A A pipe 41 having a pipe port 41a for discharging the vapor pressure from the inside space IS, a pressure gauge P2 for detecting the vapor pressure in the pipe 41, and a downstream side bar Bed V5, and a drain pipe 42A is connected to the valve V5 and the like.

  Note that the upper press panel 110A and the lower press panel 21A of the heating press panel 200A are provided with steam supply side and steam discharge side piping for heating them using high-temperature steam pressure, as in the first embodiment. A boiler device for supplying a vapor pressure, a press elevating device including a hydraulic mechanism, and the like, to which a path and the like are connected, are omitted. Similarly to the first embodiment, in order to heat the interior space IS formed by the upper press board 110A and the lower press board 21A of the heating press board 200A, in addition to a method using high-temperature vapor pressure, a high frequency A method using heating, microwave heating, or the like may be used. The configurations of the upper press platen 11B and the lower press platen 21B of the cooling press platen 100B, and the configuration of the robot arm RA and the like relating to the delivery of wood during the processing from the heating press platen 200A to the cooling press platen 100B are as described above. Since it is the same as that of form 1, the detailed description is omitted.

  In addition, when the upper press board 110A and the lower press board 21B of the heating press board 200A are in a sealed state via the seal member 14, the vertical interval of the internal space IS is determined by the plastic processing wood manufacturing apparatus 200 by the wood NW. Is set to the finished dimension in the thickness direction when the plastic processed wood PW2 has a compression rate of 60%.

  Here, the wood NW used in the plastic-processed wood manufacturing apparatus 200 of the present embodiment is made by sawing a wood as a raw material into a predetermined length and width in advance with a thickness of 30 mm or less, as shown in FIG. However, in this case, the wood surface side of the wood grain surfaces (the wood surface and the wood back surface) is placed on the lower press platen 21A of the heating press platen 200A via the auxiliary plate SB. Placed.

  Next, a process procedure for manufacturing the plastic processed wood PW2 from the raw material wood NW by the plastic processed wood manufacturing apparatus 200 will be described with reference to FIGS. 7 (a) to 7 (f). In FIG. 7A to FIG. 7F, the steam supply side and steam discharge side piping, the cooling water supply side and cooling water discharge side piping, and the like are omitted.

  First, as shown in FIG. 7 (a), the upper press board 110A is raised with respect to the lower press board 21A on the fixed side of the heated press board 200A in the plastic working wood manufacturing apparatus 200, and the lumber is sawed to a predetermined size in advance. The wood NW placed on the auxiliary plate SB is placed in the internal space IS formed by the upper press board 110A and the lower press board 21A.

  Next, as shown in FIG. 7B, the wood NW placed on the auxiliary plate SB is placed on the lower press platen 21A on the fixed side, and the upper press platen 110A is placed on the lower press platen 21A. The pressure is lowered at 0.05 to 0.3 [MPa] and brought into contact with the wood back side of the grain surface of the wood NW. And the internal space IS is 150-210 [° C.] by passing a vapor pressure of a specific temperature of 150-210 [° C.] through the pipe passage 13A of the upper press board 110A and the pipe path 23A of the lower press board 21A. At a specific temperature (temperature increase processing time: 10 to 40 [min]). In the plastically processed wood manufacturing apparatus 200 of the present embodiment, the heating process time of the heating press panel 200A is long only when it is first started, although it depends on the ambient temperature when continuously processing. .

  Next, as shown in FIG. 7 (c), the compression pressure of the upper press board 110A is set to 2 to 5 [MPa] with respect to the lower press board 21A on the fixed side, and the wood NW is made up of the upper press board 110A and the lower press board 110A. It is heated and compressed by the press panel 21A (processing time 10 to 40 [min]). When the peripheral portion 112 of the upper press disc 110A comes into contact with the peripheral portion 22 of the lower press disc 21A, the upper press disc 110A and the lower press disc 21A are sealed by the seal member 14 disposed on the peripheral portion 112 of the upper press disc 110A. The internal space IS formed at is sealed. While the compression pressure by the upper press board 110A and the lower press board 21A is maintained in the sealed state of the internal space IS, the temperature ranges from a specific temperature of 110 to 160 [° C.] between 150 to 210 [° C.] for 3 to 10 [min]. The temperature is raised to a specific temperature. The compression rate of the wood NW is determined by the peripheral edge 112 of the upper press board 110A contacting the peripheral edge 22 of the lower press board 21A.

  Then, in the sealed state of the internal space IS shown in FIG. 7C, the compression pressure of the upper press board 110A and the lower press board 21A is maintained, and the internal space IS remains at a specific temperature of 150 to 210 [° C.]. , 30 to 120 [min], so-called heat compression, temporary fixation, and fixing are performed to form plastically processed wood PW2 that does not return when the heat compression of the wood NW is released. At this time, high-temperature and high-pressure steam pressure is generated between the internal space IS and the surrounding surface of the wood NW, in particular, the interior of the wood back side of the grain surface through the space formed by the protrusions 15 formed on the upper press board 110A. Is freely accessible.

  Note that when the internal space IS is sealed and fixed, the vapor pressure in the internal space IS is detected by the pressure gauge P2 as the vapor pressure control process, and the valve V5 is appropriately opened and closed. As a result, high-temperature and high-pressure steam pressure is discharged or supplied from the internal space IS to the drain piping 42A through the piping port 41a and the piping 41, and the excess internal space IS based on the moisture content of the original wood NW. Moisture is removed and the interior space IS is adjusted to have a predetermined vapor pressure.

  Next, immediately before opening the internal space IS, by opening the valve V5, high-temperature and high-pressure vapor pressure is discharged from the internal space IS to the drain pipe 42A side through the piping port 41a and the piping 41. At this time, the upper press board 110A and the lower press board 21A are maintained at a specific temperature of 150 to 210 [° C.], and are dried and heated for a processing time of 0.5 to 15 [min]. By this drying and heating, a temporary fixing process in a heat-compressed state can be performed. At this time, the supply of steam pressure for maintaining the upper press board 110A and the lower press board 21A at a specific temperature of 150 to 210 [° C.] may be temporarily stopped.

  Next, as shown in FIG. 7 (d), the upper press panel is quickly moved relative to the fixed lower press panel 21A so as not to lower the temperature of the upper press panel 110A and the lower press panel 21A as much as possible. 110A is raised, the auxiliary plate SB is gripped by the hand TH at the tip of the robot arm RA, and the wood NW that has been heated and compressed from the internal space IS together with the auxiliary plate SB, the upper press plate 11B and the lower press of the cooling press plate 100B. It is placed between the opposing compression surfaces formed by the board 21B.

  Next, as shown in FIG. 7 (e), the upper press platen 11B is lowered at a pressure of 2 to 5 [MPa] with respect to the lower press platen 21B, and comes into contact with the back side of the grain surface of the wood NW. Let Then, normal temperature cooling water of about 10 to 25 [° C.] is passed through the pipe path 13B of the upper press board 11B and the pipe path 23B of the lower press board 21B, so that the upper press board 11B and the lower press board 21B have 10 It is cooled to about 40 [° C.] (cooling treatment time 30 to 120 [min]).

  And as shown in FIG.7 (f), the upper press board 11B is raised with respect to the fixed-side lower press board 21B, and the plastic working wood PW2 which is the finished product mounted on the lower press board 21B is carried out. It is taken out together with the auxiliary plate SB, and a series of heat compression, temporary fixing, and fixing processing steps is completed.

In the plastic working wood manufacturing apparatus 200 according to the first embodiment, when the internal space IS of the upper press board 110A and the lower press board 21A is in a sealed state, the peripheral surface of the wood NW and further the protrusions through the internal space IS. High-temperature and high-pressure vapor pressure can pass freely through the inside of the portion 15, and moisture originally contained in the wood NW is made uniform. Thereby, after the wood NW is heat-compressed and temporarily fixed, the press pressure until then is removed in a short time, and even if the surface temperature is somewhat lowered, the occurrence of bulge deformation can be delayed. The wood can be moved during the processing to the cooling press panel 100B. That is, since the upper press panel 11A and the lower press panel 21A are maintained at a specific temperature of 150 to 210 [° C.] and are dried and heated, the vapor pressure is deficient even if the whole wood NW is about to change. It becomes impossible to follow, and the wood NW can be provided with a self-holding ability, and a temporary fixing process in a heated and compressed state can be performed.
Accordingly, as a matter of course, waste of heat energy and time can be eliminated as compared with the case where one press machine performs heating compression to cooling compression.

  For this reason, in the series of heat compression, temporary fixing, and fixing processing steps using the heating press board 200A and the cooling press board 100B in the plastic working wood manufacturing apparatus 200 of the present embodiment, heat compression was performed by the heating press board 200A. After the wood NW has been transferred to the cooling press panel 100B for fixing the wood NW, the next new wood NW is placed, and the upper press panel 110A and the lower press panel 21A are identified with 150 to 210 [° C.]. If supply of the vapor pressure of temperature is started, the process can be shifted to the immobilization process for new wood NW.

  In the above embodiment, a plurality of substantially conical protrusions 15 are used as the convex portions. However, the present invention is not limited to this, and the convex portions may be used as the convex portions. A projection 15a having a special cross-sectional shape such as a star shape as shown in the perspective view of FIG. 8A and the top view of FIG. 8B is also effective, and the same effect can be expected.

[Embodiment 3]
FIG. 9 is a cross-sectional view showing a schematic configuration of a plastic working wood manufacturing apparatus according to Embodiment 3 of the present invention, and FIG. 10 shows details of a groove portion as a concave portion formed on the upper press plate in the heating press plate in FIG. It is a perspective view shown.
9 and 10, reference numeral 300 denotes a plastic working wood manufacturing apparatus. The plastic working wood manufacturing apparatus 300 mainly includes a heating press board 300 </ b> A for performing heating compression and immediately following the heating compression by the heating press board 300 </ b> A. It is comprised from the cooling press panel 100B which implements cooling compression.

  Of these, the heating press board 300A is formed in such a manner that the upper press board 120A and the lower press board 21A that form an internal space IS having compression surfaces facing each other by the structure divided into two, and the internal space IS are hermetically sealed. The seal member 14 disposed on the peripheral edge 122 of the upper press board 120A facing the peripheral edge 22 of the press board 21A, and the abutment of, for example, the wood back side of the wood grain surface other than the front end of the wood NW A plurality of substantially concave portions having a predetermined cross-sectional shape formed on the convex plane 16 of the upper press board 120A serving as a surface at predetermined intervals in the fiber direction of the wood NW and in a direction perpendicular thereto, and communicating with the internal space IS. A trapezoidal groove portion 17 is connected to the internal space IS from the side surface side of the lower press panel 21A, and has a pipe 41 having a pipe port 41a for discharging vapor pressure from the internal space IS. Pressure gauge P2 for detecting the atmospheric pressure, the downstream side of the valve V5, and a drain pipe 42A is connected to the valve V5 and the like.

  Note that the upper press panel 120A and the lower press panel 21A of the heating press panel 300A have a steam supply side and a steam discharge side for heating them using high-temperature steam pressure, as in the first and second embodiments. A boiler apparatus for supplying steam pressure, a press lifting apparatus including a hydraulic mechanism, and the like are omitted. As in the first and second embodiments, in order to heat the interior space IS formed by the upper press plate 120A and the lower press plate 21A of the heating press plate 300A, a method using high-temperature vapor pressure is used. Alternatively, a method using high-frequency heating, microwave heating, or the like may be used. The configurations of the upper press platen 11B and the lower press platen 21B of the cooling press platen 100B, and the configuration of the robot arm RA and the like related to the delivery of wood during the processing from the heating press platen 300A to the cooling press platen 100B are as described above. Since it is the same as the first and second embodiments, detailed description thereof is omitted.

In addition, when the upper press board 120A and the lower press board 21B of the heating press board 300A are in a sealed state via the seal member 14, the dimensional interval in the vertical direction of the internal space IS is determined by the plastic processing wood manufacturing apparatus 300 by the wood NW. Is set to the finished dimension in the thickness direction when the plastic processed wood PW3 having a compression rate of 60% is used. As a matter of course, the height of the convex plane 16 for forming the groove portion 17 in the upper press board 120A is also taken into consideration for this finished dimension.
Here, the wood NW used in the plastic working wood manufacturing apparatus 300 according to the present embodiment is made by sawing a wood as a raw material into a predetermined length and width in advance with a thickness of 30 mm or less. In this case as well, in this case as well, in the same manner as in the second embodiment, the wood surface side of the grain surface (two surfaces of the wood surface and the wood surface) is the lower press of the heating press panel 300A. It is placed on the board 21A via the auxiliary plate SB.

Next, a process procedure for manufacturing the plastic processed wood PW3 from the raw material wood NW by the plastic processed wood manufacturing apparatus 300 will be described with reference to FIGS. 11 (a) to 11 (f). 11A to 11F, piping on the steam supply side and the steam discharge side, piping on the cooling water supply side and the cooling water discharge side, and the like are omitted.
First, as shown in FIG. 11 (a), the upper press platen 120A is raised with respect to the lower press platen 21A on the fixed side of the heated press platen 300A in the plastic working wood manufacturing apparatus 300, and the lumber is lumbered to a predetermined size in advance. The wood NW placed on the auxiliary plate SB is placed in the internal space IS formed by the upper press board 120A and the lower press board 21A.

  Next, as shown in FIG. 11 (b), the wood NW placed on the auxiliary plate SB is placed on the lower press board 21A on the fixed side, and the upper press board 120A is placed on the lower press board 21A. The pressure is lowered at 0.05 to 0.3 [MPa] and brought into contact with the wood back side of the grain surface of the wood NW. Then, high-temperature vapor pressure of 110 to 160 [° C.] is passed through the piping path 13A of the upper press board 120A and the piping path 23A of the lower press board 21A, so that the interior space IS becomes 110 to 160 [° C.]. The temperature is maintained (temperature raising treatment time 10 to 25 [min]). In the plastically processed wood manufacturing apparatus 300 of the present embodiment, the heating process time of the heating press board 300A is long only when it is first started, although it depends on the ambient environment temperature when it is continuously processed. .

  Next, as shown in FIG. 11 (c), the compression pressure of the upper press board 120A is set to 2 to 5 [MPa] with respect to the lower press board 21A on the fixed side, and the wood NW is moved to the upper press board 120A and the lower press board 120A. It is heated and compressed by the press panel 21A (processing time 10 to 40 [min]). When the peripheral edge 122 of the upper press board 120A comes into contact with the peripheral edge 22 of the lower press board 21A, the upper press board 120A and the lower press board 21A are sealed by the seal member 14 disposed on the peripheral edge 122 of the upper press board 120A. The internal space IS formed at is sealed. While the compression pressure by the upper press board 120A and the lower press board 21A is maintained in the sealed state of the internal space IS, the temperature ranges from 110 to 160 [° C.] from a specific temperature of 110 to 160 [° C.] for 3 to 10 [min]. The temperature is raised to a specific temperature. The compression ratio of the wood NW is determined by the peripheral edge 122 of the upper press board 120A coming into contact with the peripheral edge 22 of the lower press board 21A.

Then, in the sealed state of the internal space IS shown in FIG. 11 (c), the compression pressure of the upper press panel 120A and the lower press panel 21A is maintained, and the internal space IS remains at a specific temperature of 150 to 210 [° C.]. , 30 to 120 [min], so-called immobilization is performed to form plastically processed wood PW3 that does not return when the heat compression of the wood NW is released. At this time, high-temperature and high-pressure vapor pressure is generated in the inner space IS and the surrounding surface of the wood NW, particularly the inside of the wood back side of the grain surface, through the space formed by the groove portion 17 formed in the upper press panel 120A. You can go in and out.
When the internal space IS is hermetically sealed and heat compression is performed, the vapor pressure in the internal space IS is detected by the pressure gauge P2 as a vapor pressure control process, and the valve V5 is appropriately opened and closed. As a result, high-temperature and high-pressure steam pressure is discharged from the internal space IS to the drain pipe 42A side through the piping port 41a and the piping 41, so that moisture in the excess internal space IS based on the moisture content of the original wood NW. Is removed, and the interior space IS is adjusted to have a predetermined vapor pressure.

Next, immediately before opening the internal space IS, by opening the valve V5, high-temperature and high-pressure vapor pressure is discharged from the internal space IS to the drain pipe 42A side through the piping port 41a and the piping 41. At this time, the upper press board 120A and the lower press board 21A are maintained at a specific temperature of 150 to 210 [° C.], and are dried and heated for a processing time of 0.5 to 15 [min]. By this drying and heating, a temporary fixing process in a heat-compressed state can be performed. At this time, the supply of steam pressure for maintaining the upper press panel 120A and the lower press panel 21A at a specific temperature of 150 to 210 [° C.] may be temporarily stopped.
Next, as shown in FIG. 11 (d), the upper press panel 120A is quickly raised with respect to the fixed lower press panel 21A so as not to lower the temperature of the upper press panel 120A and the lower press panel 21A as much as possible. The auxiliary plate SB is gripped by the hand TH at the tip of the robot arm RA, and the wood NW that has been heat-compressed and temporarily fixed from the internal space IS is pressed together with the auxiliary plate SB and the upper press of the cooling press panel 100B that fixes the wood NW. It is conveyed between the opposing compression surfaces formed by the board 11B and the lower press board 21B.

  Next, as shown in FIG. 11 (e), the upper press platen 11B is lowered at a pressure of 2 to 5 [MPa] with respect to the lower press platen 21B, and comes into contact with the wood back side of the grain surface of the wood NW. Let Then, normal temperature cooling water of about 10 to 25 [° C.] is passed through the pipe path 13B of the upper press board 11B and the pipe path 23B of the lower press board 21B, so that the upper press board 11B and the lower press board 21B have 10 It is cooled to about 40 [° C.] (cooling treatment time 30 to 120 [min]).

  And as shown in FIG.11 (f), the upper press board 11B is raised with respect to the fixed-side lower press board 21B, and the plastic-worked wood PW3 which is the finished product mounted on the lower press board 21B is obtained. The process of taking out the auxiliary plate SB and fixing the wood NW is completed.

  In the plastic working wood manufacturing apparatus 300 of the present embodiment, when the internal space IS of the upper press board 120A and the lower press board 21A is in a sealed state, the peripheral surface of the wood NW and further the groove portion 17 through the internal space IS. The high-temperature and high-pressure vapor pressure is allowed to pass through the interior of the wood, and the moisture originally contained in the wood NW is made uniform. Thus, after the wood NW is heated and compressed and fixed, the press pressure until then is removed for a short time, and even if the surface temperature is somewhat lowered, the occurrence of bulge deformation can be delayed, and the heating press panel 300A can be cooled. The wood can be moved during the processing to the board 100B. In addition, as a matter of course, waste of heat energy and time can be eliminated as compared with the case where a single press press performs heating compression to cooling compression.

  For this reason, in a series of processing steps using the heating press board 300A and the cooling press board 100B in the plastic working wood manufacturing apparatus 300 of the present embodiment, the wood that has been heated and compressed and fixed by the heating press board 300A is the cooling press board. After moving to 100B, if the next new wood NW is placed and supply of vapor pressure at a specific temperature of 150 to 210 [° C.] to the upper press board 120A and the lower press board 21A is started, It can transfer to the processing process with respect to the timber NW as it is.

By the way, in the said embodiment, although the groove part 17 is formed in the upper press board | substrate 120A, even if the convex plane 16 which forms this groove part 17 is integral with the upper press board | board 120A, it combines separately. You may make it comprise.
In the above embodiment, the upper press board 120A is cut so that the convex plane 16 of the upper press board 120A has a truncated pyramid shape at a predetermined interval in the fiber direction of the wood NW and in the direction perpendicular thereto. As a result, the groove portion 17 having a trapezoidal cross-sectional shape is formed. However, the present invention is not limited to this, and the cross-sectional shape of the groove portion is U-shaped or V-shaped. The shape etc. may be sufficient, and the point should just be the shape which vapor pressure passes easily and the plastic processing wood used as a product is easy to remove. Further, as shown in FIG. 12, only the fiber direction of the wood NW as a groove 17a on the convex plane 16a of the upper press board 130A, and the wood as a groove 17b on the convex plane 16b of the upper press board 140A as shown in FIG. It may be formed at predetermined intervals in the NW fiber direction and in an oblique direction intersecting therewith.

[Embodiment 4]
FIG. 14: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 4 of this invention.
In FIG. 14, reference numeral 400 denotes a plastic working wood manufacturing apparatus. This plastic working wood manufacturing apparatus 400 mainly performs heating compression immediately after the heating press board 400A for carrying out heat compression and the heating press board 400A. It is comprised from the cooling press panel 100B to implement.

  Among them, the heating press board 400A is formed in such a manner that the upper press board 150A and the lower press board 21A that form an internal space IS having opposing compression surfaces by the structure divided into two and the internal space IS are hermetically sealed. The seal member 14 disposed on the peripheral edge 132 of the upper press board 150A so as to face the peripheral edge 22 of the press board 21A, and a contact surface of the wood NW other than the mouth end surface, for example, the wood back side of the grain surface A metal mesh 18 as a gap forming member that is joined to and disposed by an adhesive or the like without forming a convex part or a concave part on the upper press board 150A, and from the side surface side of the lower press board 21A into the internal space IS. Connected to a pipe 41 having a pipe port 41a for discharging the vapor pressure from the interior space IS, a pressure gauge P2 for detecting the vapor pressure in the pipe 41, a valve V5 on the downstream side, and a valve V5. And a drain pipe 42A or the like has. That is, in the plastic working wood manufacturing apparatus 400, the protrusion 15 formed on the upper press board 110A in the second embodiment described above or the groove formed on the convex plane 16 of the upper press board 120A in the third embodiment described above. 17 is replaced with the wire mesh 18 of the upper press panel 150A.

Note that the upper press panel 150A and the lower press panel 21A of the heating press panel 400A have a steam supply side and a steam discharge side for heating them using high-temperature steam pressure, as in the first to third embodiments. A boiler apparatus for supplying steam pressure, a press lifting apparatus including a hydraulic mechanism, and the like are omitted. As in the first to third embodiments, in order to heat the interior space IS formed by the upper press board 150A and the lower press board 21A of the heating press board 400A, a method using high-temperature vapor pressure is used. Alternatively, a method using high-frequency heating, microwave heating, or the like may be used. The configurations of the upper press platen 11B and the lower press platen 21B of the cooling press platen 100B, and the configuration of the robot arm RA and the like relating to the delivery of wood during the processing from the heating press platen 400A to the cooling press platen 100B are as described above. Since it is the same as the first to third embodiments, detailed description thereof is omitted. Also, the internal space when the upper press board 150A and the lower press board 21A of the heating press board 400A are in a sealed state via the seal member 14. The dimensional interval in the vertical direction of IS is set to a finished dimension in the thickness direction when the plastic processed wood manufacturing apparatus 400 converts the wood NW to, for example, plastic processed wood PW4 having a compression rate of 60%. As a matter of course, the height for disposing the wire mesh 18 on the upper press board 150A is also taken into consideration for the finished dimensions.

  Here, the wire mesh 18 used in the present embodiment is not greatly deformed when the wood NW is heated and compressed by the upper press board 150A and the lower press board 21A in the internal space IS of the heating press board 400A. It is necessary to have a strength that can reliably keep the gap between the press panel 150A and the back side of the wood NW grain face.

In addition, the wood NW used in the plastic working wood manufacturing apparatus 400 of the present embodiment is that the wood as a raw material is sawn in advance with a predetermined length and width to a thickness of 30 mm or less. Although it is the same as that shown, in this case as well, in the same way as in the second and third embodiments, the wood surface side of the grain surface (two surfaces of the wood surface and the wood back surface) is under the heating press panel 400A. It is placed on the press board 21A via the auxiliary plate SB.
As shown in FIG. 14, by arranging the wire mesh 18 on the upper press plate 150A of the heating press plate 400A, a gap is formed between the upper press plate 150A and the back side of the grain surface of the wood NW. Therefore, high-temperature and high-pressure steam is generated between the internal space IS formed by the upper press board 150A and the lower press board 21A of the heating press board 400A and the surrounding surface of the wood NW, the back side of the grain surface, and the inside thereof. Pressure can pass freely.

  Next, a process procedure for manufacturing the plastic processed wood PW4 as a product from the raw material wood NW by the plastic processed wood manufacturing apparatus 400 will be described with reference to FIGS. 15 (a) to 15 (f). In FIGS. 15A to 15F, piping on the steam supply side and the steam discharge side is omitted.

First, as shown in FIG. 15 (a), the upper press board 150A is raised with respect to the lower press board 21A on the fixed side of the hot press board 400A in the plastic working wood manufacturing apparatus 400, and the lumber is lumbered to a predetermined size in advance. The wood NW placed on the auxiliary plate SB is placed in the internal space IS formed by the upper press board 150A and the lower press board 21A.
Next, as shown in FIG. 15B, the wood NW placed on the auxiliary plate SB is placed on the lower press board 21A on the fixed side, and the upper press board 150A is placed on the lower press board 21A. The pressure is lowered at 0.05 to 0.3 [MPa] and brought into contact with the wood back side of the grain surface of the wood NW through the wire mesh 18. And the internal space IS is 150-210 [° C.] by passing a vapor pressure of a specific temperature of 150-210 [° C.] through the pipe passage 13A of the upper press board 150A and the pipe passage 23A of the lower press board 21A. At a specific temperature (temperature raising treatment time: 10 to 25 [min]). In the plastic working wood manufacturing apparatus 400 of the present embodiment, the heating process time of the heating press board 400A is long only when it is first started, although it depends on the ambient environment temperature when it is continuously processed. .

  Next, as shown in FIG. 15C, the compression pressure of the upper press board 150A is set to 2 to 5 [MPa] with respect to the lower press board 21A on the fixed side, and the wood NW is made up of the upper press board 150A and the lower press board 21A. It is heated and compressed by the press panel 21A (processing time 10 to 40 [min]). When the peripheral portion 132 of the upper press plate 150A comes into contact with the peripheral portion 22 of the lower press plate 21A, the upper press plate 150A and the lower press plate 21A are sealed by the seal member 14 disposed on the peripheral portion 132 of the upper press plate 150A. The internal space IS formed at is sealed. While the compression pressure by the upper press board 150A and the lower press board 21A is maintained in the sealed state of the internal space IS, the temperature is from 110 to 160 [° C.] from a specific temperature of 110 to 160 [° C.] for 3 to 10 [min]. The temperature is raised to a specific temperature.

  At this time, the back side of the grain surface of the wood NW that is heated and compressed through the wire mesh 18 disposed on the upper press panel 150A is deformed so as to bite into the wire mesh 18. There is enough space for vapor pressure to pass through without filling up the space. The compression rate of the wood NW is determined by the peripheral portion 132 of the upper press plate 150A coming into contact with the peripheral portion 22 of the lower press plate 21A.

And the compression pressure of the upper press board 150A and the lower press board 21A is maintained in the sealed state of the internal space IS shown in FIG. 15 (c), and the internal space IS remains at a specific temperature of 150 to 210 [° C.]. When the heating and compression of the wood NW is released for 30 to 120 [min], immediately before opening the internal space IS, the valve V5 is opened, and high-temperature and high-pressure vapor pressure is discharged from the internal space IS. . At this time, the upper press board 150A and the lower press board 21A are maintained at a specific temperature of 150 to 210 [° C.], and are dried and heated for a processing time of 0.5 to 15 [min]. By this drying and heating, a temporary fixing process in a heat-compressed state is performed. At this time, high-temperature and high-pressure steam pressure is generated between the internal space IS and the surrounding surface of the wood NW2, particularly the interior of the back side of the grain surface, through the space formed by the metal mesh 18 disposed on the upper press panel 150A. Therefore, excess moisture in the internal space IS based on the moisture content of the wood NW is removed with high efficiency, and steam in the internal space IS is discharged.
At this time, the supply of vapor pressure may be temporarily stopped to such an extent that the upper press board 150A and the lower press board 21A are maintained at a specific temperature of 110 to 160 [° C.].

  Next, as shown in FIG. 15 (d), the upper press panel 150A is quickly raised with respect to the lower press panel 21A on the fixed side so as not to lower the temperature of the upper press panel 150A and the lower press panel 21A. The auxiliary plate SB is gripped by the hand TH at the tip of the arm RA, and the wood NW, which has been heated and compressed from the internal space IS, together with the auxiliary plate SB, the upper press plate 11B and the lower press plate of the cooling press plate 100B for fixing the wood NW. It is placed between the opposing compression surfaces formed by 21B.

Next, as shown in FIG. 15 (e), the upper press platen 11B is lowered at a pressure of 2 to 5 [MPa] with respect to the lower press platen 21B, and comes into contact with the wood back side of the grain surface of the wood NW. Let Then, normal temperature cooling water of about 10 to 25 [° C.] is passed through the pipe path 13B of the upper press board 11B and the pipe path 23B of the lower press board 21B, so that the upper press board 11B and the lower press board 21B have 10 It is cooled to about 40 [° C.] (cooling treatment time 30 to 120 [min]).
And as shown in FIG.15 (f), the upper press board 11B is raised with respect to the fixed-side lower press board 21B, and the plastic working wood PW4 which is the finished product mounted on the lower press board 21B is carried out. The processing step of taking out the auxiliary plate SB and fixing the series of wood NW is completed.
In the plastically processed wood manufacturing apparatus 400 of the present embodiment, the wood NW is heated and compressed by the heating press board 400A during the processing, and then immediately moved to the cooling press board 100B for cooling and compression.

  In the plastic working wood manufacturing apparatus 400 of the present embodiment, when the internal space IS of the upper press board 150A and the lower press board 21A is in a sealed state, the peripheral surface of the wood NW and further the wire mesh 18 through the internal space IS. The high-temperature and high-pressure vapor pressure is allowed to pass through the interior of the wood, and the moisture originally contained in the wood NW is made uniform. As a result, the wood NW is heated and compressed, and the press pressure up to that time is removed for a short period of time. Even if the surface temperature is somewhat lowered, the occurrence of bulge deformation can be delayed. The wood NW can be moved during the processing to 100B. In addition, as a matter of course, waste of heat energy and time can be eliminated as compared with the case where a single press press performs heating compression to cooling compression.

For this reason, in the processing step of fixing, temporarily fixing, and fixing the wood NW using the heating press board 400A and the cooling press board 100B in the plastic working wood manufacturing apparatus 400 of the present embodiment, heating is performed by the heating press board 400A. After the compressed and fixed wood is transferred to the cooling press board 100B for fixing the wood NW, the next new wood NW is placed, and 150 to 210 [on the upper press board 150A and the lower press board 21A. If the supply of the vapor pressure at a specific temperature of [° C.] is started, the process can be shifted as it is to an immobilization process for heating and compressing a new wood NW.
It should be noted that the pattern side of the wire mesh 18 remains when the back side of the plate surface of the plastically processed wood PW4 bites into the wire mesh 18, but the tree surface opposite to the surface of the surface of the product is the tree surface. There is no problem because it is on the back side. In addition, there is no problem if the portion of the wire mesh 18 where the pattern shape remains is set in advance so as to be within a dimensional range that is a cutting allowance for commercialization. Further, the portion where the pattern shape of the wire mesh 18 remains on the wood back side of the product grain surface is preferable because it serves to help adhesion in the case of the adhesive specification, and the wood back side of the wood grain surface of the plastically processed wood PW4 The uneven shape of this is not a problem in commercialization.

In addition, the heating press disk 400A in the plastic working wood manufacturing apparatus 400 of the present embodiment has a wire mesh 18 as a gap forming member that forms a gap with the wood NW on the upper press board 150A side as one compression surface side. Is provided.
Then, the wood NW in the plastic working wood manufacturing apparatus 400 of the present embodiment passes from the start of processing by the heating press board 400A to the end of processing by the cooling press board 100B, and is made of a metal having a thermal conductivity equal to or higher than those. It is processed while placed on the auxiliary plate SB as an auxiliary tool.

  For this reason, while the wood NW on the auxiliary plate SB placed in the internal space IS of the heating press board 400A is heated and compressed, and the internal space IS is kept in a sealed state for a predetermined time, the upper press board 150A Moisture originally contained in the wood NW becomes the vapor pressure through the wire mesh 18 that forms a gap between the wood NW and the wood NW arranged on the compression surface side that contacts the wood back side of the grain surface of the wood NW. Thus, the wood NW is uniformly heated and compressed by allowing it to pass between the interior space IS. Then, the wood NW is temporarily fixed by heat compression by the heating press board 400A, and cooling compression is performed by the cooling press board 100B which is immediately fixed. Thus, according to the plastic working wood manufacturing apparatus 400 of the present embodiment, the wood NW is heated and compressed, the internal space IS is kept in a sealed state for a predetermined time, and then temporarily fixed, and the internal space IS is taken from the sealed state. Opened and fixed without causing bulging deformation by cooling and compressing in the cooling press disk 100B where the wood immediately taken out from the internal space IS of the heating press panel 400A is fixed, and stably processed plastically processed wood PW4 Can be manufactured.

By the way, the wire net 18 used in the above embodiment naturally has a strength that can withstand the heat compression in the press process, but the wire diameter, the fineness of the eyes, etc. The optimum type is selected in advance through experiments or the like.
In the above embodiment, the metal mesh 18 is disposed on the upper press board 150A by bonding with an adhesive or the like. However, in order to more reliably arrange the metal mesh 18 on the upper press board 150A, for example, Forming a recess according to the outer shape, and fitting the wire mesh 18 into the recess and fixing it together with adhesion or the like can prevent misalignment and improve workability.
And in the said embodiment, although the metal net | network 18 is used as a clearance gap formation member, when implementing this invention, it is not limited to this, Porous materials, such as a ceramic and a sintered alloy, are used. By using these materials, the same effect can be expected. If these materials are used, the pattern shape remaining on the back side of the plate surface of the plastically processed wood PW4 can be made inconspicuous, and workability can be improved. The effect that it is possible can also be obtained.

In addition, the heating press board 100A, 200A, 300A, 400A or the cooling press board 100B of the plastic working wood manufacturing apparatus 100, 200, 300, 400 according to the above-described embodiment has a compression surface that is opposed to each other by a plurality of divided structures. The internal space IS is formed and the volume of the internal space IS is changed. However, at the start of heating and compression, the internal space IS is not necessarily limited to the closed one. The internal space IS may be opened.
Further, the heat compression processing control means of the plastic working wood manufacturing apparatus 100, 200, 300, 400 according to the above embodiment has a thickness of 30 [] placed in the internal space IS of the heating press panel 100A, 200A, 300A, 400A. mm] Heat compression by heating and compressing at a predetermined temperature and pressure in a direction perpendicular to the length direction of the grain of the following timber, holding the internal space IS in a sealed state, and releasing it after a predetermined time. After that, a process for maintaining the compressed state of the wood NW by the vapor pressure of the internal space IS is performed.

In addition, the vapor pressure control means of the plastic working wood manufacturing apparatus 100, 200, 300, 400 of the above-described embodiment is configured such that when the internal space IS is held in a sealed state by the heat compression processing control means, the internal space IS is passed through the internal space IS. The steam pressure is controlled by supplying or discharging the high-temperature and high-pressure steam pressure on the peripheral surface of the wood NW, and the heat compression state of the wood NW is temporarily fixed by controlling the steam pressure.
And the cooling compression processing control means of the plastic working wood manufacturing apparatus 100, 200, 300, 400 according to the above embodiment temporarily fixes the wood NW by the vapor pressure control taken out from the heating press machines 100A, 200A, 300A, 400A. The converted wood NW is placed on the cooling press board 100B, the heated and compressed surface is forcibly cooled and compressed at a predetermined temperature and a predetermined pressure to fix the wood NW, and is released after a predetermined time has elapsed.

As described above, the plastic working wood manufacturing apparatus 100, 200, 300, 400 of the above embodiment forms the internal space IS having the compression surfaces facing each other by the divided structure, and the volume of the internal space IS The heating presses 100A, 200A, 300A, 400A composed of the upper presses 11A, 110A, 120A, 150A and the lower presses 21A, and the insides of the heating presses 100A, 200A, 300A, 400A, which are freely compressible by changing For example, 150 to 210 [vertical] in the direction perpendicular to the grain surface other than the mouth end surface perpendicular to the length direction of the grain of the wood NW having a thickness of 30 [mm] or less placed in the space IS. ° C] at a specified temperature and 2 to 5 [MPa], and the internal space IS is kept in a sealed state and opened after 30 to 120 [min]. And a steam pressure for controlling the high-temperature and high-pressure steam pressure on the peripheral surface of the wood NW through the internal space IS when the internal space IS is kept in a sealed state by the heat-compression process control means. A cooling press board 100B comprising an upper press board 11B and a lower press board 21B that can be cooled and compressed by forming a compression surface facing the control means and a plurality of divided structures and changing the distance between the compression surfaces. Then, the wood taken out from the heating press machines 100A, 200A, 300A, and 400A is immediately placed on the cooling press machine 100B, and the heated and compressed surface has a normal temperature of about 10-25 [° C.] and 2-5 [MPa. ], And a cooling compression processing control means that opens after 30 to 120 [min] has elapsed.
In addition, the wood NW in the plastic working wood manufacturing apparatus 100, 200, 300, 400 of the above-described embodiment is a cooling press that temporarily fixes and fixes from the start of heat compression processing by the heating press machines 100A, 200A, 300A, 400A. Through the end of the processing by the board 100B, the processing is performed in a state where it is placed on the auxiliary plate SB as a conveyance auxiliary tool made of a metal having a thermal conductivity equal to or higher than those.

  And each means in the plastic working wood manufacturing apparatus 100,200,300,400 of the said embodiment can be regarded as a work process. That is, an internal space IS having compression surfaces facing each other is formed by a structure divided into a plurality of parts, and the upper press plates 11A, 110A, 120A, 150A and the lower press, which can be heated and compressed by changing the volume of the internal space IS. For example, on the grain surface other than the end face of the heating press panel 100A, 200A, 300A, 400A composed of the panel 21A, which is perpendicular to the length direction of the grain of the wood NW placed in the internal space IS. On the other hand, it is heated and compressed in the vertical direction at a specific temperature of 150 to 210 [° C.] and 2 to 5 [MPa] to keep the internal space IS sealed, and it is opened after 30 to 120 [min]. When the internal space IS is kept sealed in the heat compression process control step and the heat compression process control step, the high temperature and high pressure of the peripheral surface of the wood NW is passed through the internal space IS. An upper press panel 11B and a lower press panel 21B that can be cooled and compressed by forming opposing compression surfaces by a vapor pressure control step for controlling the atmospheric pressure and a structure divided into a plurality of parts, and changing the distance between the compression surfaces. The cooling press board 100B made of the above and the wood taken out from the heating press boards 100A, 200A, 300A, and 400A are immediately placed on the cooling press board 100B, and the heat-compressed surface has a room temperature of about 10 to 25 [° C.]. And it can be set as embodiment of the plastic processing wood manufacturing method which consists of a cooling compression processing control process which cools and compresses by 2-5 [MPa], and is open | released after 30-120 [min] progress.

  For this reason, while the wood NW on the auxiliary plate SB placed in the internal space IS of the heating press machines 100A, 200A, 300A, 400A is heated and compressed, and the internal space IS is kept in a sealed state for a predetermined time. The moisture contained in the wood NW originally becomes the vapor pressure, and the wood NW is uniformly heated and compressed by allowing the moisture to enter and diffuse through the internal space IS and further into and out of the surrounding surface of the wood NW. The Then, after the wood NW is heated and compressed by the heating press machines 100A, 200A, 300A, and 400A, the wood NW is temporarily fixed and cooled and compressed by the cooling press board 100B that fixes the wood NW. Thus, according to the plastic working wood manufacturing apparatus 100, 200, 300, 400 of the present embodiment, the wood NW is heated and compressed, the internal space IS is kept in a sealed state for a predetermined time, and the wood pressure is controlled by vapor pressure control. Temporary fixation is promoted, the internal space IS is released from the sealed state, and the temporarily fixed wood NW that is immediately taken out from the internal space IS of the heating press machines 100A, 200A, 300A, 400A is used as the wood NW. It is possible to manufacture plastic processed wood PW1, PW2, PW3, and PW4 having stable quality without causing deformation by being cooled and compressed by the cooling press platen 100B to be fixed.

  By the way, in the said embodiment, it is predetermined in the perpendicular | vertical direction with respect to the length direction of the grain of the timber NW below 30 [mm] thickness mounted in the internal space IS of heating press board 100A, 200A, 300A, 400A. In the case of heat compression at a temperature and a predetermined pressure, the heat press plate that can be heated and compressed does not form a closed space at the start of heat compression. However, as in the embodiment of FIG. It is also possible to use the upper press plate 11A ′ that presses in two steps with the press plate 11b, and to perform heat compression in a closed space from the start of heat compression. In particular, there are some that can perform plastic working more efficiently when the vapor pressure is increased.

  According to the plastic processing wood manufacturing apparatus and the manufacturing method thereof of the present invention, a light and soft wood material such as cedar can be used as a raw material, and the hardness not only on the surface of the original wood but also on the entire plate thickness is greatly improved. Thus, it is possible to produce plastically processed wood that is hardly scratched. Therefore, plastic-processed wood manufactured using the plastic-processed wood manufacturing apparatus and manufacturing method of the present invention is widely used for flooring materials, waistboard materials, indoor furniture materials, and housing exterior materials used by surface coating. Applications are expected.

  According to the plastic processing wood manufacturing apparatus and the manufacturing method thereof of the present invention, it is based on a wood NW having a thickness of 30 [mm] or less. However, when the present invention is implemented, the thickness is strictly 30 [mm]. However, the thickness can be further increased when the surface is uneven in the direction perpendicular to the length direction of the grain.

FIG. 1 is a cross-sectional view showing a schematic configuration of a plastic working wood manufacturing apparatus according to Embodiment 1 of the present invention. FIG. 2 is a plan view of the wood surface of the wood used in the plastic working wood manufacturing apparatus according to the first embodiment of the present invention, the side surface of the wood, the end of the wood, and an auxiliary plate as a transport aid on which the wood is placed during processing. FIG. FIG. 3 is an explanatory diagram showing a process procedure of the plastic working wood manufacturing apparatus according to the first embodiment of the present invention. FIG. 4 is a schematic diagram showing a modified example of a hot press disk composed of a plurality of divided structures in the plastic working wood manufacturing apparatus according to the first embodiment of the present invention. FIG. 5: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 2 of this invention. FIG. 6 is a perspective view showing details of a protrusion as a convex portion formed on the upper press disk of the heating press disk of FIG. FIG. 7 is an explanatory diagram showing a process procedure of the plastic working wood manufacturing apparatus according to the second embodiment of the present invention. FIG. 8 is a perspective view showing a modified example of the protrusions formed on the upper press plate of the heating press plate of FIG. FIG. 9: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 3 of this invention. FIG. 10 is a perspective view showing details of a groove portion as a concave portion formed in the upper press plate of the heating press plate of FIG. FIG. 11: is explanatory drawing which shows the process procedure of the plastic working wood manufacturing apparatus concerning Embodiment 3 of this invention. FIG. 12 is a perspective view showing a modification of the groove formed in the upper press platen of the heating press platen of FIG. FIG. 13 is a top view showing another modification of the groove formed in the upper press disk of the heating press disk of FIG. FIG. 14: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 4 of this invention. FIG. 15 is an explanatory diagram showing a process procedure of the plastic working wood manufacturing apparatus according to the fourth embodiment of the present invention.

Explanation of symbols

11A, 110A, 120A, 150A Upper press board 14 Seal member 15 Protrusion part 17 Groove part 18 Wire net 21A Lower press board 100A, 200A, 300A, 400A Heating press board 11B Upper press board 21B Lower press board 100B Cooling press board 100, 200, 300,400 Plastic processing wood manufacturing equipment IS Internal space NW wood PW1, PW2, PW3, PW4 Plastic processing wood SB Auxiliary plate

Claims (10)

Forming an internal space having compression surfaces facing each other by a structure divided into a plurality of parts, and changing the volume of the internal space to enable heating and compression,
The inner space is sealed by heating and compressing at a predetermined temperature and a predetermined pressure in a direction perpendicular to the length direction of the grain of wood having a thickness of 30 mm or less, which is placed in the inner space of the heating press. Heating compression processing control means for maintaining the state and releasing it after elapse of a predetermined time;
When the internal space is held in a hermetically sealed state by the heat compression processing control means, high-temperature and high-pressure steam pressure on the peripheral surface of the wood is controlled via the internal space, and the wood is temporarily A vapor pressure control means to be fixed;
Forming a compression surface facing the structure divided into a plurality of parts, and changing the distance between the compression surfaces;
The wood temporarily fixed by the vapor pressure control taken out from the heating press platen is immediately placed on the cooling press platen, and the heat-compressed surface is forcibly cooled and compressed at a predetermined temperature and a predetermined pressure, thereby the wood. And a cooling and compression processing control means for fixing and releasing after a predetermined time has elapsed.   2. The plastically processed wood manufacturing apparatus according to claim 1, wherein the heated press panel has a convex portion having a predetermined cross-sectional shape so as to bite into the wood on at least one compression surface side. .   The plastic working wood manufacturing apparatus according to claim 1, wherein the heated press plate has a concave portion having a predetermined cross-sectional shape communicating with the internal space on at least one compression surface side.   The plastic working wood manufacturing apparatus according to claim 1, wherein a gap forming member that forms a gap with the wood is disposed on at least one compression surface side of the hot press disk.   The wood is passed through from the start of processing by heat compression on the heating press plate to the end of processing leading to fixing by forced cooling compression by the cooling press plate, and the conveyance assistance made of a material having the same or higher thermal conductivity as those. 2. The plastically processed wood manufacturing apparatus according to claim 1, wherein the plastically processed wood manufacturing apparatus is processed in a state of being placed on a tool. A thickness 30 placed in the internal space is formed by a heating press board that is heat-compressible by forming an internal space having a compression surface facing the structure divided into a plurality of parts and changing the volume of the internal space. [Mm] Heat compression processing control that heats and compresses at a predetermined temperature and a predetermined pressure in a direction perpendicular to the length direction of the wood grain below, maintains the internal space in a sealed state, and releases it after a predetermined time has elapsed. Process,
When the internal space is kept in a sealed state in the heat compression process control step, a high-temperature and high-pressure steam pressure on the peripheral surface of the wood is controlled via the internal space, and the wood is temporarily A vapor pressure control process to be fixed;
An opposing compression surface is formed by a structure divided into a plurality of parts, and the distance between the compression surfaces is changed, so that a cooling press plate that can be cooled and compressed is temporarily provided by the vapor pressure control taken out from the heating press plate. A cooling compression processing control step in which the fixed wood is immediately placed, the heat-compressed surface is forcedly cooled and compressed at a predetermined temperature and a predetermined pressure to fix the wood, and is released after a predetermined time has elapsed. A plastically processed wood manufacturing method characterized by the following.   7. The plastically processed wood manufacturing method according to claim 6, wherein the heated press plate has a convex portion having a predetermined cross-sectional shape enough to bite into the wood on at least one compression surface side. .   The method of manufacturing a plastically processed wood according to claim 6, wherein the heated press plate has a concave portion having a predetermined cross-sectional shape communicating with the internal space on at least one compression surface side.   The plastic working wood manufacturing method according to claim 6, wherein a gap forming member that forms a gap with the wood is disposed on at least one compression surface side of the hot press disk. The wood is passed through from the start of processing by heat compression on the heating press plate to the end of processing leading to fixing by forced cooling compression by the cooling press plate, and the conveyance assistance made of a material having the same or higher thermal conductivity as those. The method of manufacturing a plastically processed wood according to claim 6, wherein the processing is performed in a state of being placed on a tool.

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