JP4608680B2 - Plastic working wood manufacturing apparatus and manufacturing method thereof - Google Patents

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 of wood, and can be used, for example, for flooring of a house.

  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 contained in the wood. It was. 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 shown in which, after confinement, moisture in wood is pressurized and steamed and fixed in a compressed deformation state, the inside of the sealed space is decompressed while maintaining the pressed state. According to this, since the water vapor contained in the wood is released into the sealed space, it is possible to prevent the occurrence of bulge deformation on the surface even if the wood is taken out from the heat press machine in a heated state after the heat press treatment. is there.

In Patent Document 2, through holes or semi-through holes are formed in the thickness direction of wood (wood material), and when the wood is heated and compressed by a press machine, the heated steam is uniformly supplied to the wood by supplying heated steam. A technique for performing the process of stabilizing the spread dimensions is shown. According to this, it is said that heated water vapor can be evenly distributed to the wood compressed and compressed in the internal space from a large number of pores provided in the press board.
JP-A-8-90516 Japanese Patent Laid-Open No. 10-249813

  However, as described in Patent Document 1 mentioned above, high-temperature and high-pressure water vapor contained in wood is difficult to escape instantly only by reducing the pressure in the sealed space, and still remains in the center away from the wood mouth surface. It is not uniform in the part, especially in the case of thick plate material, it is impossible to completely suppress the bulge deformation after the hot press process, and there is a problem that the quality as a product deteriorates if the bulge deformation occurs even a little .

  On the other hand, as disclosed in Patent Document 2, even if heated steam is supplied into the sealed space from a large number of pores provided in the press board, wood through-holes or semi-through holes that are heated and compressed by the press board, etc. It was impossible to make the pores on the press panel coincide with each other and to allow water vapor to penetrate uniformly into the wood. For this reason, since there is moisture originally contained in the wood, homogenization in every part is not compensated, and it is still possible to completely suppress bulge deformation without performing cooling treatment after heat press treatment with thick plate material There is a problem that the quality as a product is lowered due to some bulging deformation.

  Therefore, the present invention has been made to solve such problems, and it is possible to eliminate the cooling process after heat compression molding of wood and shorten the heat treatment time, and to produce a product of stable quality that does not cause bulging deformation after processing. An object of the present invention is to provide a plastic processing wood manufacturing apparatus and a manufacturing method thereof that can be manufactured.

  The plastic working wood manufacturing apparatus according to claim 1 forms an internal space by a structure divided into a plurality of parts, and uses a press disk that is press-compressible by changing the volume of the internal space, and at least one of the woods On the compression surface side, a convex portion having a predetermined cross-sectional shape enough to bite into the wood is formed, and a predetermined temperature is set so that the wood placed in the internal space bites into the convex portion. The inner space is kept in a hermetically sealed state at a predetermined pressure, and is opened after a predetermined time. In the meantime, when the internal space is held in a sealed state, high-temperature and high-pressure steam on the compressed surface of the wood is controlled through the internal space and the convex portion.

Here, press-compressing in a direction perpendicular to the length direction of the wood grain means that the area of the end face is reduced. In other words, it means that the area of the mouth end surface is reduced by press-compressing the wood grain surface or the grid surface, and whether the wood grain surface is press-compressed or the grid surface is press-compressed. The press compression is determined in consideration of the type and the like.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other plural structures such as an upper and lower press panel structure that is simply divided into two parts in the vertical direction, and a structure that includes an upper and lower press panel and a frame. It can be configured by a construct.

  And the convex part which has a predetermined cross-sectional shape enough to bite into the wood in the case of carrying out the present invention is the same temperature and pressure as the internal space up to the position of the wood that bites into the wood and reaches the bited-in position As a result, the cross-sectional shape is sufficient as long as it does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product. It is preferable to form as many convex portions as possible. In addition, the depth of biting may be a shallow structure when the thickness of the wood is not so great.

  Further, the press working control means in the case of carrying out the present invention is characterized in that at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. With the convex part formed in the wood, the wood is bitten into the wood at a predetermined temperature and pressure and is heated and compressed, and until the bite position is reached, the heating and compression state is the same as the internal space If it is.

  Furthermore, the vapor pressure control means in the case of carrying out the present invention is such that the contact area between the internal space formed by the press working control means and the high-temperature high-pressure water vapor on the surface of the wood on the compression surface side is a convex portion. What is necessary is just to control so that it may be increased by forming. The high-temperature and high-pressure steam on the inner space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High pressure steam and / or drain is discharged. The supply of the high-temperature and high-pressure steam may be generated from wood by supplying high-temperature and high-pressure steam from the outside or by processing of a press panel.

  In addition, the convex portion formed on at least one compression surface side of the wood in the press board, depending on the embodiment of the present invention, when the convex portion is formed on one compression surface side of the wood, This means that convex portions may be formed on both compression surfaces of the wood.

  The plastic working wood manufacturing apparatus according to claim 2, wherein an internal space is formed by a structure divided into a plurality of parts, and is placed in the internal space in a press machine that is press-compressible by changing the volume of the internal space. 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 wood in the press board when press-compressing in a direction perpendicular to the length direction of the grain of the finished wood. Is formed, and the wood placed in the internal space is heated and compressed at a predetermined temperature and a predetermined pressure. The internal space is held in a sealed state and opened after a predetermined time, and when the internal space is held in a sealed state, the high temperature on the compression surface of the wood through the internal space and the concave portion It controls high-pressure steam.

Here, press-compressing in a direction perpendicular to the length direction of the wood grain means that the area of the facet is reduced, and preferably, the area of the facet and the area of the facet are reduced. This means the directionality of press compression by the press board.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other plural structures such as an upper and lower press panel structure that is simply divided into two parts in the vertical direction, and a structure that includes an upper and lower press panel and a frame. It can be configured by a construct.

And 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 similar to internal space, and a humidity (vapor pressure) state on the compression surface of the wood press-compressed As a result, the cross-sectional shape of the wood may be such that the heat-compressed wood does not undergo processing strain and does not impair the quality of the product. 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 formed on the compression surface of the wood of the press board, and has a substantially U shape, a substantially V shape, a substantially trapezoidal shape, etc. as a cross-sectional shape. Any shape can be used as long as it is easy to remove the plastic-processed wood as a product.
Further, the press working control means in the case of carrying out the present invention is characterized in that at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. What is necessary is just to heat-compress wood at the predetermined temperature and the predetermined pressure by the concave part formed in the.

Furthermore, the vapor pressure control means in the case of carrying out the present invention is such that the internal space formed by the press working control means and the contact surface of the high-temperature high-pressure steam on the surface of the wood on the compression surface side form a concave portion. As long as it is controlled so as to be increased by. Note that the high-temperature and high-pressure steam on the internal space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High temperature and high pressure steam and / or drain is discharged. The supply of the high-temperature and high-pressure steam may be generated from wood by supplying high-temperature and high-pressure steam from the outside or by processing of a press panel.
In addition, depending on the embodiment of the present invention, the concave portion formed on at least one compression surface side of the wood in the press board, when the concave portion is formed on one compression surface side of the wood, This means that concave portions may be formed on both compression surfaces.

  The plastic working wood manufacturing apparatus according to claim 3 is a press board that is press-compressible by forming an internal space by a structure divided into a plurality of parts and changing a volume of the internal space, and is placed in the internal space. When press-compressing in a direction perpendicular to the length direction of the grain of the timber, the gap forming member that forms a gap with the timber is provided on at least one compression surface side of the timber in the press board. It arrange | positions and heat-compresses the said timber mounted in the said internal space with predetermined temperature and predetermined pressure. The internal space is held in a sealed state, and is opened after a predetermined time, and when the internal space is held in a sealed state, the compression surface of the wood is interposed between the internal space and the gap forming member. It controls high-temperature and high-pressure steam.

Here, press-compressing in a direction perpendicular to the length direction of the wood grain means that the area of the facet is reduced, and preferably, the area of the facet and the area of the facet are reduced. This means the directionality of press compression by the press board.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other plural structures such as an upper and lower press panel structure that is simply divided into two parts in the vertical direction, and a structure that includes an upper and lower press panel and a frame. It can be configured by a construct.

And the clearance gap formation member which forms a clearance gap between the timber in the case of implementing this invention is the temperature and pressure state similar to internal space, and a humidity (vapor pressure) state on the compression surface of the timber press-compressed. As a result, it is only necessary to have a surface uneven 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.
Further, the press working control means in the case of carrying out the present invention is characterized in that at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. The wood is heated and compressed at a predetermined temperature and a predetermined pressure through a gap forming member disposed on the inside, and the compressed surface of the wood is held in the same heat compression state as the internal space, and is released after a predetermined time has elapsed. If it is.

Furthermore, the vapor pressure control means in the case of carrying out the present invention is such that the internal space formed by the press working control means and the contact surface of the high-temperature high-pressure steam on the surface of the compression side wood form a gap forming member. As long as it is controlled so as to be increased. Note that the high-temperature and high-pressure steam on the internal space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High temperature and high pressure steam and / or drain is discharged. The supply of the high-temperature and high-pressure steam may be generated from wood by supplying high-temperature and high-pressure steam from the outside or by processing of a press panel.
The gap forming member disposed on at least one compression surface side of the wood in the press board is a case where the gap forming member is disposed on one compression surface side of the wood depending on the embodiment of the present invention. This means that a gap forming member may be disposed on both compression surfaces of the wood.

According to a fourth aspect of the plastic processing wood manufacturing apparatus of the present invention, in addition to the requirements of the first to third aspects, the wood has a hole having a predetermined diameter in a direction perpendicular to the length direction of the grain. , Are drilled to a predetermined depth at a predetermined density.
Here, the direction perpendicular to the length direction of the wood grain means a direction parallel to the end face, in other words, a direction perpendicular to the fiber direction of the wood.
And when a hole in wood is made into a product, drilling with a drill blade, pressing with a needle-like member or a sharp pointed blade, a blade or needle so as not to impair its strength or commercial value Can be appropriately drilled by a rotating roller or the like provided in the periphery.

The plastic working wood manufacturing method according to claim 5 , wherein an internal space is formed by a structure divided into a plurality of parts, and is placed in the internal space in a press machine that is press-compressible by changing the volume of the internal space. When pressing and compressing in a direction perpendicular to the length direction of the grain of the timber, at least one compression surface side of the timber in the press panel is a convex shape having a predetermined cross-sectional shape enough to bite into the timber. A portion is formed, and the wood placed in the internal space is heated and compressed at a predetermined temperature and a predetermined pressure so as to bite into the convex portion. The internal space is held in a sealed state, and is released after a predetermined time has elapsed, and when the internal space is held in a sealed state, the compressed surface of the wood through the internal space and the convex portion Is used to control high-temperature and high-pressure water vapor.

Here, the press compression in the direction perpendicular to the length direction of the wood grain preferably means that the area of the wood surface and the mouth end surface of the wood is reduced, and the directionality of the press compression by the press machine is reduced. It is something to identify.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other plural structures such as an upper and lower press panel structure that is simply divided into two parts in the vertical direction, and a structure that includes an upper and lower press panel and a frame. It can be configured by a construct.

  And the convex part which has a predetermined cross-sectional shape enough to bite into the wood in the case of carrying out the present invention is the same temperature and pressure as the internal space up to the position of the wood that bites into the wood and reaches the bited-in position As a result, the cross-sectional shape is sufficient as long as it does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product. It is preferable to form as many convex portions as possible. In addition, the depth of biting may be a shallow structure when the thickness of the wood is not so great.

  Further, in the press working control process in the case of carrying out the present invention, at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. The lumber is bitten into the wood via the convex portion formed in the heat, and the wood is heated and compressed at a predetermined temperature and a predetermined pressure, and until the bited position is maintained in the same heat compression state as the internal space for a predetermined time. What is necessary is just to open it after progress.

Furthermore, in the vapor pressure control process in the case of carrying out the present invention, the internal space formed in the press process control process and the contact surface of high-temperature high-pressure steam on the surface of the wood on the compression surface side form a convex portion. As long as it is controlled so as to be increased. The high-temperature and high-pressure steam on the inner space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High pressure steam and / or drain is discharged. The high-temperature and high-pressure steam may be supplied from the outside when high-temperature and high-pressure steam is supplied from the outside, or may be generated from wood by processing of a press panel.
In addition, the convex portion formed on at least one compression surface side of the wood in the press board, depending on the embodiment of the present invention, when the convex portion is formed on one compression surface side of the wood, This means that convex portions may be formed on both compression surfaces of the wood.

The plastic working wood manufacturing method according to claim 6 , wherein an internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed, and the press machine is press-compressible and is placed in the internal space. 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 wood in the press board when press-compressing in a direction perpendicular to the length direction of the grain of the finished wood. Is formed, and the wood placed in the internal space is heated and compressed at a predetermined temperature and a predetermined pressure. While holding the internal space in a sealed state and opening it after a predetermined time has elapsed, when the internal space is held in a sealed state in the press working control step, the internal space and the concave portion are interposed. It controls high-temperature and high-pressure water vapor on the compressed surface of the wood.

Here, press-compressing in a direction perpendicular to the length direction of the wood grain means that the area of the facet is reduced, and preferably, the area of the facet and the area of the facet are reduced. This means the directionality of press compression by the press board.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other plural structures such as an upper and lower press panel structure that is simply divided into two parts in the vertical direction, and a structure that includes an upper and lower press panel and a frame. It can be configured by a construct.
And 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 similar to internal space, and a humidity (vapor pressure) state on the compression surface of the wood press-compressed As a result, the cross-sectional shape of the wood may be such that the heat-compressed wood does not undergo processing strain and does not impair the quality of the product. 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 press board, and the cross-sectional shape is substantially U-shaped, substantially V-shaped, substantially trapezoidal, etc. Any shape can be used as long as it is easy to remove the plastic-processed wood as a product.

  Further, in the press working control process in the case of carrying out the present invention, at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. The wood is heated and compressed at a predetermined temperature and pressure, and the compressed surface of the wood is held in the same heat compression state as that of the internal space. Anything can be used.

Furthermore, in the vapor pressure control process in the case of carrying out the present invention, the internal space formed in the press work control process and the contact surface of high-temperature high-pressure steam on the surface of the wood on the compression surface side form a concave portion. As long as it is controlled so as to be increased by. The high-temperature and high-pressure steam on the inner space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High pressure steam and / or drain is discharged. The high-temperature and high-pressure steam may be supplied from the outside when high-temperature and high-pressure steam is supplied from the outside, or may be generated from wood by processing of a press panel.
Note that the concave portion formed on at least one compression surface side of the wood in the press board is, depending on the embodiment of the present invention, when the concave portion is formed on one compression surface side of the wood, both of the wood This means that a concave portion may be formed on the compression surface side.

The plastic working wood manufacturing method according to claim 7 is a press board which is press-compressible by forming an internal space by a plurality of divided structures and changing a volume of the internal space, and is placed in the internal space. When press-compressing in a direction perpendicular to the length direction of the grain of the timber, the gap forming member that forms a gap with the timber is provided on at least one compression surface side of the timber in the press board. A press working control step that is disposed and heat-compresses the wood placed in the internal space at a predetermined temperature and a predetermined pressure, holds the internal space in a sealed state, and releases it after a predetermined time has elapsed. And when the internal space is maintained in a sealed state in the press working control step, steam for controlling high-temperature and high-pressure steam on the compressed surface of the wood through the internal space and the gap forming member. It is made of a pressure control process.

Here, press-compressing in a direction perpendicular to the length direction of the wood grain means that the area of the facet is reduced, and preferably, the area of the facet and the area of the facet are reduced. This means the directionality of press compression by the press board.
In addition, the press panel of the structure divided into a plurality of cases in the case of carrying out the present invention includes a plurality of other configurations such as an upper and lower press panel structure that is simply divided into two vertically and a structure that includes an upper and lower press panel and a frame. Can be configured by body.
And the clearance gap formation member which forms a clearance gap between the timber in the case of implementing this invention is the temperature and pressure state similar to internal space, and a humidity (vapor pressure) state on the compression surface of the timber press-compressed. As a result, it is preferable to form as many gaps as possible with a surface uneven shape that does not cause processing distortion in the heat-compressed wood and does not impair the quality of the product.

Further, in the press working control process in the case of carrying out the present invention, at least one compression surface side of the wood in the press board is obtained by press compression of the wood placed in the internal space formed by the press board having a plurality of divided structures. The wood is communicated with the internal space through a gap forming member disposed in the heat-compressed wood at a predetermined temperature and a predetermined pressure, and the compressed surface of the wood is maintained in a heat-compressed state similar to that of the internal space. Anything that opens it may be used.
Furthermore, in the vapor pressure control process when the present invention is implemented, the contact space of the high-temperature and high-pressure steam on the inner surface formed by the press working control means and the surface of the wood on the compression surface side forms a gap forming member. As long as it is controlled so as to be increased. The high-temperature and high-pressure steam on the inner space and the surface of the wood on the compression surface side differs depending on the dry state of the wood, the finished state of the compression process, etc. High pressure steam and / or drain is discharged. The supply of the high-temperature and high-pressure steam may be generated from wood by supplying high-temperature and high-pressure steam from the outside or by processing of a press panel.
The gap forming member disposed on at least one compression surface side of the wood in the press board is a case where the gap forming member is disposed on one compression surface side of the wood depending on the embodiment of the present invention. This means that a gap forming member may be disposed on both compression surfaces of the wood.

  According to the plastic working wood manufacturing apparatus of claim 1, it is a press disk which is press-compressible by changing the volume of the internal space formed by the structure divided into a plurality of parts. Convex having a predetermined cross-sectional shape enough to bite into the wood formed on at least one compression surface side of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain placed on The compression of the wood in which the convex part bites by the vapor pressure control means when the internal part is held in a hermetically sealed state by biting into the compression surface of the wood and heating and compressing at a predetermined temperature and pressure. High-temperature and high-pressure steam is controlled to pass between the surface and the internal space, and the sealed state is opened after a predetermined time.

  In other words, the wood placed in the internal space of the press panel by the press working control means is heated and compressed in a 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 water vapor is controlled by the vapor pressure control means, the sealed state is opened after a lapse of a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and a convex portion having a predetermined cross-sectional shape is formed to the extent that it bites into the wood on at least one compression surface side of the wood in the press board. As a result, the surface area of the wood on the compression surface side is increased, the surface of the wood on the compression surface side, and the water vapor entering and exiting the interior and the interior space are increased, and the wood is uniformly fixed. The As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured. Note that the high-temperature and high-pressure steam may be supplied to the internal space from the outside.

  According to the plastic working wood manufacturing apparatus of claim 2, the volume of the internal space formed by the structure divided into a plurality of parts is changed, and the press space can be compressed by the press working control means. A concave shape having a predetermined cross-sectional shape communicating with an internal space formed on at least one compression surface side of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain placed on the wood The compression surface of the wood and the internal space are communicated with each other through the section, heated and compressed at a predetermined temperature and a predetermined pressure, and contacted with the concave portion by the vapor pressure control means when the internal space is kept in a sealed state. The high-temperature and high-pressure water vapor is controlled between the compressed surface of the timber and the internal space so that the sealed state is released after a predetermined time.

  In other words, the wood placed in the internal space of the press panel by the press working control means is heated and compressed in a 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 water vapor is controlled by the vapor pressure control means, the sealed state is opened after a lapse of a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and at least one compression surface side of the wood in the press panel is formed with a concave portion having a predetermined cross-sectional shape communicating with the internal space. As a result, the water vapor entering and exiting the surface of the wood on the compression surface side, and the interior and interior space thereof is increased, and the wood is uniformly fixed. As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured. Note that the high-temperature and high-pressure steam may be supplied to the internal space from the outside.

  According to the plastic working wood manufacturing apparatus of claim 3, the press space can be press-compressed by changing the volume of the internal space formed by the structure divided into a plurality of parts. Forming a gap with the wood disposed on the compression surface side of at least one of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain of the wood placed on The compression surface of the wood and the internal space are communicated with each other through the member, heated and compressed at a predetermined temperature and a predetermined pressure, and when this internal space is kept in a sealed state, the vapor pressure control means contacts the gap forming member. High-temperature and high-pressure water vapor is controlled to pass freely between the compressed surface of the wood that is in contact with the internal space, and the sealed state is opened after a predetermined time.

In other words, the wood placed in the internal space of the press panel by the press working control means is heated and compressed in a 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 water vapor is controlled by the vapor pressure control means, the sealed state is opened after a lapse of a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and a gap forming member that forms a gap with the wood on the compression surface side of at least one of the wood in the press board and communicates with the internal space Is disposed, the water vapor entering and exiting the surface of the wood on the compression surface side, and the inside and the interior space thereof is increased, and the wood is uniformly fixed. As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured. Note that the high-temperature and high-pressure steam may be supplied to the internal space from the outside.
In particular, by using a porous material such as ceramic or sintered alloy as a gap forming member, the same effect can be expected, and if these materials are used, the pattern shape remaining on the back side of plastically processed wood is conspicuous It is possible to eliminate this, and it is also possible to obtain an operational effect that workability can be improved.

  In the plastically processed wood manufacturing apparatus of claim 4, in addition to the effects of claims 1 to 3, the wood has a direction perpendicular to the length direction of the grain, that is, a direction in which the wood is press-compressed. Holes having a predetermined diameter are formed at a predetermined density and with a predetermined depth, and an effect is achieved in which uniform fixation to the inside of the wood is smoothly achieved through the holes.

According to the plastic working wood manufacturing method of claim 5 , the volume of the internal space formed by the structure divided into a plurality of parts is changed, and the press space can be press-compressed. Convex having a predetermined cross-sectional shape enough to bite into the wood formed on at least one compression surface side of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain placed on The compression of the wood in which the convex part bites in by the vapor pressure control process when the internal part is held in a hermetically sealed state by biting into the compression surface of the wood and heating and compressing it at a predetermined temperature and pressure. High-temperature and high-pressure steam is controlled to pass between the surface and the internal space, and the sealed state is opened after a predetermined time.

  In other words, the wood placed in the internal space of the press panel by the press working control process is heated and compressed in a direction perpendicular to the length direction of the grain, and the internal space is held in a sealed state. After the high-temperature and high-pressure water vapor is controlled in the vapor pressure control step, the sealed state is opened after a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and a convex portion having a predetermined cross-sectional shape is formed to the extent that it bites into the wood on at least one compression surface side of the wood in the press board. As a result, the surface area of the wood on the compression surface side increases, the surface of the wood on the compression surface side, and the water vapor entering and exiting the interior and the interior space increase, and the wood is fixed uniformly. It becomes. As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured.

According to the plastic working wood manufacturing method of claim 6 , the volume of the internal space formed by the structure divided into a plurality of parts is changed so that the press can be compressed by the press working control process. A concave shape having a predetermined cross-sectional shape communicating with an internal space formed on at least one compression surface side of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain placed on the wood The compression surface of the wood and the internal space are communicated with each other through the part, heated and compressed at a predetermined temperature and a predetermined pressure, and contacted with the concave part by the vapor pressure control process when the internal space is kept in a sealed state. The high-temperature and high-pressure water vapor is controlled between the compressed surface of the timber and the internal space so that the sealed state is released after a predetermined time.

  In other words, the wood placed in the internal space of the press panel by the press working control process is heated and compressed in a direction perpendicular to the length direction of the grain, and the internal space is held in a sealed state. After the high-temperature and high-pressure water vapor is controlled in the vapor pressure control step, the sealed state is opened after a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and at least one compression surface side of the wood in the press panel is formed with a concave portion having a predetermined cross-sectional shape communicating with the internal space. As a result, the water vapor entering and exiting the surface of the wood on the compression surface side, and the interior and interior space thereof is increased, and the wood is uniformly fixed. As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured.

According to the plastic working wood manufacturing method of claim 7 , the volume of the internal space formed by the structure divided into a plurality of parts is changed, and the press space can be pressed and compressed. Forming a gap with the wood disposed on the compression surface side of at least one of the wood in the press board when press-compressing in a direction perpendicular to the length direction of the wood grain of the wood placed on When the compression surface of the wood and the internal space are communicated with each other through the member, heated and compressed at a predetermined temperature and a predetermined pressure, and the internal space is kept in a sealed state, the vapor pressure control step contacts the gap forming member. High-temperature and high-pressure water vapor is controlled to pass freely between the compressed surface of the wood that is in contact with the internal space, and the sealed state is opened after a predetermined time.

  In other words, the wood placed in the internal space of the press panel by the press working control process is heated and compressed in a direction perpendicular to the length direction of the grain, and the internal space is held in a sealed state. After the high-temperature and high-pressure water vapor is controlled in the vapor pressure control step, the sealed state is opened after a predetermined time. This water vapor is originally formed by evaporating the moisture contained in the wood, and a gap forming member that forms a gap with the wood on the compression surface side of at least one of the wood in the press board and communicates with the internal space Is disposed, the water vapor entering and exiting the surface of the wood on the compression surface side, and the inside and the interior space thereof is increased, and the wood is uniformly fixed. As a result, after the wood is heat-compressed and fixed in a sealed state, even if it is immediately taken out from the internal space of the press panel and naturally cooled, it does not bulge and deform after forming, and it has a stable quality. Can be manufactured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Embodiment 1]
1 is a cross-sectional view showing a schematic configuration of a plastic working wood manufacturing apparatus according to a first embodiment of the present invention, and FIG. 2 is a detail of a protruding portion as a convex portion formed on a lower press disc of the press disc in FIG. FIG.

  1 and 2, reference numeral 100 denotes a plastically processed wood manufacturing apparatus. This plastically processed wood manufacturing apparatus 100 mainly has an internal space IS formed by a two-divided structure of an upper press board 11A and a lower press board 21A. The press board 10A to be formed, 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 lower press board 21A in order to make the internal space IS hermetically sealed, and the wood NW1 A plurality of substantially conical protrusions 24 as convex portions having a predetermined cross-sectional shape formed at a predetermined interval on the lower press board 21A serving as a contact surface with the wood back side and formed so as to bite into the wood NW1. And a pressure that detects a vapor pressure in the pipe 41, a pipe 41 having a pipe port 41a for discharging water vapor from the inner space IS from the side surface side of the lower press panel 21A. Total P2, the downstream side of the valve V5, and a drain pipe 42 or the like connected to the valve V5.

Further, in the upper press board 11A and the lower press board 21A of the press board 10A, pipe lines 13 and 23 are formed for raising the temperature to a desired temperature by passing high-temperature steam. Pipes ST2 and ST3 branched from the steam supply side pipe ST1 and steam discharge side pipes ET1 and ET2 are connected to the paths 13 and 23, 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 42 via a valve V4. In addition, the boiler apparatus which supplies water vapor | steam to piping ST1, and the press raising / lowering apparatus containing the hydraulic mechanism for raising / lowering and pressurizing the upper press board 11A with respect to the lower press board 21A of the fixed side of the press board 10A are abbreviate | omitted. Has been. Here, in the present embodiment, high-temperature water vapor is used to heat the interior space IS formed by the upper press platen 11A and the lower press platen 21A of the press platen 10A. Microwave heating or the like can also be used.
Further, when the upper press board 11A and the lower press board 21A of the press board 10A 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 working wood manufacturing apparatus 100 by the wood NW1. For example, it is set to the finished dimension in the thickness direction when the plastic processed wood PW1 has a compression rate of 60%.

  Here, as shown in FIG. 3, the wood NW1 used in the plastic working wood manufacturing apparatus 100 of the present embodiment is obtained by sawing a wood as a raw material into a predetermined length, width, and thickness in advance. The wood NW1 is composed of a surface perpendicular to the length direction of the grain (two surfaces of the wood surface and the back of the tree), a mesh surface (two surfaces), and a mouth end surface (two surfaces). The back side of the surface in the vertical direction is placed on the lower press platen 21A of the press platen 10A. In the present embodiment, the description will be given of an example in which the back side of the surface perpendicular to the length direction of the grain is placed on the lower press platen 21A of the press platen 10A. The length direction of the grain is not uniquely determined on the back side of the tree.

Next, a process procedure for manufacturing the plastic processed wood PW1 from the raw material wood NW1 by the plastic processed wood manufacturing apparatus 100 will be described with reference to FIGS. 4 (a) to 4 (e). In FIGS. 4A to 4E, piping on the steam supply side and the steam discharge side are omitted.
First, as shown in FIG. 4A, the upper press board 11A is raised with respect to the lower press board 21A on the fixed side of the press board 10A in the plastic working wood manufacturing apparatus 100, and the lumber previously sawn to a predetermined size. NW1 is placed in an internal space IS formed by the upper press board 11A and the lower press board 21A.

  Next, as shown in FIG. 4B, the pressure on the upper press platen 11A is 0.05 to 0 against the wood NW1 placed on the protrusion 24 formed on the lower press platen 21A on the fixed side. .3 [MPa: Mega Pascal] and let it come into contact with the wood surface side of the wood NW1. And the high-temperature water vapor | steam of 110-160 [degreeC] is passed through the piping path 13 of the upper press board 11A, and the piping path 23 of the lower press board 21A, and the inside space IS is specified 110-160 [degreeC]. The temperature is maintained (temperature raising treatment time 20 [min: min]). In the plastically processed wood manufacturing apparatus 100 of the present embodiment, the temperature increase processing time of the press panel 10A 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. 4 (c), the compression pressure of the upper press platen 11A is set to a specific compression pressure of 2 to 5 [MPa] with respect to the lower press platen 21A on the fixed side, and the wood NW1 is the upper press. It is heated and compressed by the board 11A and the lower press board 21A (processing time 25 [min]). By this heat compression, the protrusion 24 formed on the lower press board 21A bites into the wood back side of the wood NW1. 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 at is sealed. While the compression pressure by the upper press platen 11A and the lower press platen 21A is maintained in the sealed state of the internal space IS, the temperature is changed from a specific temperature of 110 to 160 [° C.] between 150 to 210 [° C.] for 3 to 10 [min]. To a specific temperature during

At this time, the lumber side of the wood NW1 placed on the projecting portion 24 of the lower press board 21A is deformed by the projecting portion 24, but the projecting portion 24 does not completely fill the gap due to the deformation of the wood NW1. A space for water vapor to pass therethrough is formed. The compression ratio of the wood NW1 is determined by the peripheral edge 12 of the upper press board 11A coming into contact with the peripheral edge 22 of the lower press board 21A.
And in the sealed state of the internal space IS shown in FIG.4 (c), the compression pressure of the upper press board 11A and the lower press board 21A is maintained, and internal temperature IS is 150-210 [degreeC] specific temperature. The so-called immobilization is performed to form the plastically processed wood PW1 that is held for 40 to 120 [min] and does not return when the heat compression of the wood NW1 is released. At this time, high-temperature and high-pressure steam can freely enter and leave the interior space IS and the interior of the back side of the wood NW1 through the space formed by the protrusions 24 formed on the lower press board 21A.

  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 a vapor pressure process, and the valve V5 is appropriately opened and closed. As a result, high-temperature and high-pressure water vapor is discharged from the internal space IS to the drain pipe 42 through the pipe port 41a and the pipe 41, so that excess water in the internal space IS based on the moisture content of the original wood NW1 is removed. It is removed and the interior space IS is adjusted to have a predetermined vapor pressure.

Next, as shown in FIG. 4 (d), immediately before opening the internal space IS from the sealed state, the valve V5 is opened as a vapor pressure control process so that the interior passes through the pipe port 41a and the pipe 41. High temperature and high pressure steam is discharged from the space IS to the drain pipe 42 side. At this time, the water vapor for maintaining the upper press platen 11A and the lower press platen 21A at a specific temperature between 150 and 210 [° C.] is also temporarily stopped.
Next, as shown in FIG. 4 (e), the upper press platen 11A is quickly raised with respect to the fixed-side 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 plastic processed wood PW1 which is a finished product is taken out from the internal space IS, and a series of processing steps is completed.

  That is, in the plastic working wood manufacturing apparatus 100 of the present embodiment, the cooling process for the upper press board 11A and the lower press board 21A before the take-out, which has been conventionally essential for the production of the plastic working wood PW1, can be omitted. The reason for this is that when the internal space IS of the upper press platen 11A and the lower press platen 21A is in a sealed state, the projections 24 formed on the lower press platen 21A bite into the wood NW1 and the inside of the wood NW1. High-temperature and high-pressure water vapor can freely pass between the space IS and the moisture originally contained in the wood NW1 is made uniform.

  Therefore, after the water vapor is discharged from the internal space IS after the fixation, it is possible to obtain a plastic-processed wood PW1 having a stable quality that does not bulge and deform even if it is immediately taken out and naturally cooled as it is. In addition, although the cross-sectional shape will remain in the wood back side of the plastically processed wood PW1 due to the protrusions 24 biting in, a problem occurs because it is on the wood back side opposite to the wood surface side which is the surface side of the product. There is nothing. In addition, there is no problem if the portion where the cross-sectional shape of the protruding portion 24 remains is set in advance so as to be within a dimensional range that is a cutting allowance for commercialization. Furthermore, the portion where the cross-sectional shape of the protrusion 24 remains on the tree back side of the product is preferable because it has a role of assisting adhesion in the case of the adhesive specification, and the uneven shape on the tree back side of the plastic processed wood PW1 is suitable for commercialization. There is no problem.

  For this reason, in the series of processing steps in the plastic working wood manufacturing apparatus 100 of the present embodiment, it is not necessary to forcibly cool the upper press platen 11A and the lower press platen 21A, and the upper press platen 11A and the lower press platen 21A If a new wood NW1 is placed in the internal space IS and the supply of water vapor at a specific temperature between 150 to 210 [° C.] to the upper press board 11A and the lower press board 21A is started, the process for the new wood NW1 Can be migrated as is.

  As described above, the plastic working wood manufacturing apparatus 100 according to the present embodiment forms the internal space IS by a plurality of divided structures and changes the volume of the internal space IS so that the press press can freely compress the upper press platen 11A. And a press board 10A composed of the lower press board 21A, and the back side of the wood NW1 in the press board 10A when press-compressing in a direction perpendicular to the length direction of the grain of the wood NW1 placed in the internal space IS On the compression surface side, a protrusion 24 is formed as a convex portion having a predetermined cross-sectional shape enough to bite into the wood NW1, and the wood NW1 placed in the internal space IS is bitten into the protrusion 24. Thus, heat compression is performed at a specific temperature between 150 to 210 [° C.] and a specific compression pressure of 2 to 5 [MPa], and the internal space IS is kept sealed, and 40 to 120 [min Steam supply side pipes ST1, ST2, ST3, valves V1, V2, V3, pressure gauge P1, steam discharge side pipes ET1, ET2, valve V4, drain pipe 42, boiler apparatus (not shown) Press working control means achieved by a press elevating device (not shown) including a hydraulic mechanism, and when the internal space IS is held in a sealed state by the press working control means, the wood through the protrusions 24 It includes a pipe 41 that controls high-temperature and high-pressure steam in the compression surface of the NW 1 and the internal space IS, and a vapor pressure control means that is achieved by a valve V5, a drain pipe 42, and the like.

  Further, by reading each means in the plastic working wood manufacturing apparatus 100 of the present embodiment as a process, that is, the internal space IS is formed by a structure divided into a plurality of parts, and the volume of the internal space IS is changed. When press-compressing in the direction perpendicular to the length direction of the grain of the wood NW1 placed in the internal space IS with the press machine 10A composed of the upper press machine 11A and the lower press machine 21A, On the compression surface side, which is the back side of the wood NW1 in the press panel 10A, a projection 24 is formed as a convex portion having a predetermined cross-sectional shape enough to bite into the wood NW1, and is placed in the internal space IS. The wood NW1 is heated and compressed at 150 to 210 [° C.] and 2 to 5 [MPa] so as to bite into the protrusion 24, and the internal space IS is kept in a hermetically sealed state. Steam supply side pipes ST1, ST2, ST3, valves V1, V2, V3, pressure gauge P1, steam discharge side pipes ET1, ET2, valve V4, drain pipe 42, boiler device (Not shown), a press working control process achieved by a press elevating device (not shown) including a hydraulic mechanism, and the protrusion 24 when the internal space IS is kept sealed in the press working control process. Of a plastically processed wood manufacturing method comprising: a pipe 41 for controlling high-temperature and high-pressure steam in the compression surface of the wood NW1 and the internal space IS, a valve V5, a drain pipe 42, etc. It can be made the form.

  For this reason, while the wood NW1 placed in the internal space IS of the press board 10A is heated and compressed and the internal space IS is kept in a sealed state for a predetermined time, the back side of the wood NW1 of the lower press board 21A and The protrusion 24 having a predetermined cross-sectional shape so as to bite into the wood NW1 formed on the compression surface side that comes into contact with the wood NW1 placed in the internal space IS is originally included in the wood NW1. The water NW1 is fixed to the wood NW1 uniformly by allowing water to be passed through the interior space IS as water vapor. Thus, according to the plastically processed wood manufacturing apparatus 100 of the present embodiment, the wood NW1 is heated and compressed, the internal space IS is held and fixed in a sealed state for a predetermined time, and the internal space IS is released from the sealed state. Thus, it is possible to manufacture plastic processed wood PW1 having a stable quality that does not bulge and deform even if it is immediately taken out from the internal space IS of the press panel 10A and naturally cooled.

  In the above-described embodiment, a plurality of substantially conical protrusions 24 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. 5A is a perspective view and FIG. 5B is a top view, and a projection 24a having a special cross-sectional shape such as a star-shaped cross section is also effective, and the same effect can be expected. . However, when carrying out the present invention, it is desirable to use a slit, a through hole or the like as a guide for guiding the water vapor pressure to the tip of the convex portion.

  Moreover, in the said embodiment, although the press board 10A which forms internal space IS by the structure divided into 2 parts of the upper press board 11A and the lower press board 21A is comprised, when implementing this invention However, the present invention is not limited to this, and as shown schematically in FIG. 6 (a), the flat press machine 11a and the square cylindrical side wall press machine 11b are combined, and the flat press machine 11a with respect to the side wall press machine 11b is combined. An O-ring 14a or the like is arranged on the sliding portion of the side peripheral surface, and an upper press plate 11B and a lower press plate 21A (the projection 24 and the like are omitted) that press the flat press plate 11a and the side wall press plate 11b in two steps. The press board can also be constituted by a structure divided into three. Further, as shown schematically in FIG. 6 (b), an upper press machine 11C and a lower press machine which are combined with a flat press machine 11c and a square cylindrical side wall press machine 11d and fixed with bolts 11e or the like. The press board can also be configured by a three-divided structure composed of 21A (projections 24 etc. are omitted).

[Embodiment 2]
FIG. 7 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. 8 shows details of a groove portion as a concave portion formed in the lower press platen of the press platen in FIG. It is a perspective view. Moreover, FIG. 9 is a perspective view which shows the processing state of the hole of the wood back side of the timber used with the plastic processing timber manufacturing apparatus concerning Embodiment 2 of this invention. In addition, about the thing which consists of a structure similar to the above-mentioned Embodiment 1, or an equivalent part, the same code | symbol and the same symbol are attached | subjected, and the overlapping description is abbreviate | omitted.

  7 and 8, reference numeral 200 denotes a plastically processed wood manufacturing apparatus. This plastically processed wood manufacturing apparatus 200 mainly has an internal space IS formed by two divided structures of an upper press board 11A and a lower press board 21B. The press board 10B to be formed, 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 lower press board 21B in order to make the internal space IS sealed, and the wood NW2 A concave shape having a predetermined cross-sectional shape that is formed at a predetermined interval in the fiber direction of the wood NW2 and in a direction perpendicular to the fiber NW2 on the convex plane 25 of the lower press board 21B that is a contact surface with the wood back side. A plurality of substantially trapezoidal grooves 26 as a portion, and a piping port 41a that communicates with the interior space IS from the side surface of the lower press panel 21B and discharges water vapor from the interior space IS. Pipe 41, the pressure gauge P2 to detect the vapor pressure of the pipe 41, downstream of the valve V5, and a drain pipe 42 or the like connected to the valve V5.

Note that, in the upper press board 11A and the lower press board 21B of the press board 10B, as in the first embodiment, piping lines on the steam supply side and the steam discharge side for heating them using high-temperature steam, etc. Are omitted, and a boiler device for supplying water vapor and a press lifting device including a hydraulic mechanism are omitted. As in the first embodiment, in order to heat the interior space IS formed by the upper press platen 11A and the lower press platen 21B of the press platen 10B, in addition to the method using high-temperature steam, high-frequency heating, A method using microwave heating or the like may be used.
Further, when the upper press board 11A and the lower press board 21B of the press board 10B 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 200 by the wood NW2. For example, it is set to the finished dimension in the thickness direction when the plastic processed wood PW2 has a compression rate of 60%. As a matter of course, the height of the convex plane 25 for forming the groove 26 in the lower press board 21B is also taken into consideration for the finished dimension.

Here, as shown in FIG. 9, the wood NW2 used in the plastic working wood manufacturing apparatus 200 of the present embodiment is that the wood to be a raw material is sawn into a predetermined length, width, and thickness in advance. In addition, a hole H is drilled in advance in the wood NW2 so as to be perpendicular to the back of the wood, that is, in a direction substantially perpendicular to the fiber direction. The hole H has, for example, a diameter of about 1.5 [mm], a density of about 80 [pieces] / 100 [cm ² ], and a depth of the original plate thickness as viewed from the back side of the wood NW2. It is drilled so as to correspond to about 90%. These numerical values are set in advance to optimum values for the original wood NW2 through experiments or the like.

Next, a process procedure for manufacturing the plastic processed wood PW2 as a product from the raw material wood NW2 by the plastic processed wood manufacturing apparatus 200 will be described with reference to FIGS. 10 (a) to 10 (e). In addition, in FIG. 10 (a)-FIG.10 (e), the piping of the vapor | steam supply side, a vapor | steam discharge side, etc. are abbreviate | omitted.
First, as shown in FIG. 10 (a), the upper press platen 11A is raised with respect to the lower press platen 21B on the fixed side of the press platen 10B in the plastic working wood manufacturing apparatus 200, and is sawn to a predetermined size in advance. The wood NW2 having holes H is placed in the internal space IS formed by the upper press board 11A and the lower press board 21B.

  Next, as shown in FIG. 10 (b), the pressure on the upper press disk 11A is 0.05 to 0 against the wood NW2 placed on the convex plane 25 formed on the fixed lower press board 21B. Lower at 3 [MPa] and contact with the upper surface of the wood NW2. The upper press board 11A and the lower press board 21B are maintained at a specific temperature of 110 to 160 [° C.] by passing high temperature steam of 110 to 160 [° C.] through the pipe lines 13 and 23. (Temperature increasing time 10-30 [min]). In the plastically processed wood manufacturing apparatus 200 of the present embodiment, the temperature increase processing time of the press panel 10B is long only when it is first started, although it depends on the ambient temperature when continuously processing.

  Next, as shown in FIG. 10 (c), the compression pressure of the upper press disk 11A is set to a specific compression pressure of 2 to 5 [MPa] with respect to the fixed-side lower press disk 21B, and the wood NW2 is the upper press. It is heated and compressed by the board 11A and the lower press board 21B (processing time 15 to 45 [min]). When the peripheral portion 12 of the upper press plate 11A comes into contact with the peripheral portion 22 of the lower press plate 21B, the upper press plate 11A and the lower press plate 21B are sealed by the seal member 14 disposed on the peripheral portion 12 of the upper press plate 11A. The internal space IS formed at is sealed. While the compression pressure by the upper press platen 11A and the lower press platen 21B 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]. To a specific temperature during

At this time, the wood back side of the wood NW2 placed on the convex plane 25 of the lower press board 21B is deformed so as to bite into the groove portion 26 from the convex plane 25, but the groove portion 26 is not completely filled. There is sufficient space for water vapor to pass through. The compression ratio of the wood NW2 is determined by the peripheral edge 12 of the upper press board 11A coming into contact with the peripheral edge 22 of the lower press board 21B.
Then, in the sealed state of the internal space IS shown in FIG. 10 (c), the compression pressure of the upper press platen 11A and the lower press platen 21B is maintained, and the specific temperature between the internal space IS of 150 to 210 [° C.]. The fixing is performed to form the plastically processed wood PW2 that is held for 40 to 120 [min] and does not return when the heat compression of the wood NW2 is released. At this time, high-temperature and high-pressure water vapor can freely enter and exit in the internal space IS and the hole H on the back side of the wood NW2 through the space formed by the groove 26 formed in the convex plane 25 of the lower press board 21B. .

  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 a vapor pressure process, and the valve V5 is appropriately opened and closed. As a result, the high-temperature and high-pressure water vapor is discharged from the internal space IS to the drain pipe 42 side through the pipe port 41a and the pipe 41, so that excess water in the internal space IS based on the moisture content of the original wood NW2 is obtained. It is removed and the interior space IS is adjusted to have a predetermined vapor pressure.

Next, as shown in FIG. 10 (d), immediately before the internal space IS is opened from the sealed state, the valve V5 is opened as a vapor pressure control process so that the interior passes through the pipe port 41a and the pipe 41. High temperature and high pressure steam is discharged from the space IS to the drain pipe 42 side. At this time, the water vapor for maintaining the upper press platen 11A and the lower press platen 21B at a specific temperature between 150 and 210 [° C.] is also temporarily stopped.
Next, as shown in FIG. 10 (e), the upper press platen 11A is quickly raised with respect to the fixed-side lower press platen 21B so as not to lower the temperature of the upper press platen 11A and the lower press platen 21B as much as possible. The plastic processed wood PW2 which is a finished product is taken out from the internal space IS, and a series of processing steps is completed.

  That is, in the plastic working wood manufacturing apparatus 200 of the present embodiment, the cooling step for the upper press board 11A and the lower press board 21B before the take-out, which has been conventionally indispensable for the production of the plastic working wood PW2, can be omitted. The reason for this is that, when the internal space IS of the upper press board 11A and the lower press board 21B is in a sealed state, the inside of the hole H formed in the wood NW2 through the groove portion 26 formed in the lower press board 21B. Water vapor can pass between the inner space IS and the internal space IS, and the moisture originally contained in the wood NW2 is made uniform.

  Therefore, after the water vapor is discharged from the internal space IS after the fixation, it is possible to obtain the plastic-processed wood PW2 having a stable quality that does not bulge and deform even if it is immediately taken out and naturally cooled as it is. In addition, although the pattern shape will remain when the wood back side of the plastic-processed wood PW2 bites into the groove portion 26 from the convex plane 25, there is a problem because it is the wood back side opposite to the wood surface side which is the surface side of the product. It does not occur. In addition, there is no problem if the portion where the cross-sectional shape of the groove 26 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 cross-sectional shape of the groove portion 26 remains on the back side of the product is preferable because it has a role of assisting adhesion in the case of the adhesive specification, and the uneven shape on the back side of the plastic processed wood PW2 is a problem in commercialization. It will never be.

  For this reason, in the series of processing steps in the plastic working wood manufacturing apparatus 200 of the present embodiment, there is no need to forcibly cool the upper press platen 11A and the lower press platen 21B, and the upper press platen 11A and the lower press platen 21B If a new wood NW2 is placed in the internal space IS and the supply of water vapor at a specific temperature of 110 to 160 [° C.] to the upper press board 11A and the lower press board 21B is started, the processing process for the new wood NW2 is continued. Can be migrated.

  As described above, the plastic working wood manufacturing apparatus 200 according to the present embodiment forms the internal space IS by the structure divided into a plurality of parts and changes the volume of the internal space IS to change the volume of the internal press space 11A. And a press board 10B composed of the lower press board 21B and the back side of the wood NW2 in the press board 10B when press-compressing in a direction perpendicular to the length direction of the grain of the wood NW2 placed in the internal space IS On the compression surface side, a groove 26 is formed as a concave portion having a predetermined cross-sectional shape communicating with the internal space IS, and the wood NW2 placed in the internal space IS is 150 to 210 [° C.]. Steam ST1 on the steam supply side that heats and compresses at a specific temperature between 2 and 5 [MPa], maintains the internal space IS in a sealed state, and opens it after 40 to 120 [min] has elapsed. T2, ST3, valves V1, V2, V3, pressure gauge P1, steam discharge side pipes ET1, ET2, valve V4, drain pipe 42, boiler device (not shown), press lifting device (not shown) including a hydraulic mechanism, etc. Press working control means achieved in this way, and when the internal space IS is kept in a sealed state by the press working control means, high-temperature and high-pressure steam on the compression surface of the wood NW2 and the internal space IS through the groove 26 And a vapor pressure control means that is achieved by a valve 41, a valve V5, a drain pipe 42, and the like.

  Further, by reading each means in the plastic working wood manufacturing apparatus 200 of the present embodiment as a process, that is, the internal space IS is formed by a structure divided into a plurality of parts, and the volume of the internal space IS is changed. When press-compressing in the direction perpendicular to the length direction of the grain of the wood NW2 placed in the internal space IS with the press machine 10B composed of the upper press machine 11A and the lower press machine 21B that can be press-compressed. A groove 26 as a concave portion having a predetermined cross-sectional shape communicating with the internal space IS is formed on the compression surface side that is the back side of the wood NW2 in the press panel 10B, and the wood placed in the internal space IS NW2 is heated and compressed at a specific temperature of 150 to 210 [° C.] and a specific compression pressure of 2 to 5 [MPa], and the internal space IS is kept in a sealed state, 40 to 120 [m n] Steam supply side pipes ST1, ST2, ST3, valves V1, V2, V3, pressure gauge P1, steam discharge side pipes ET1, ET2, valve V4, drain pipe 42, boiler device (not shown) ), A press working control process achieved by a press elevating device (not shown) including a hydraulic mechanism, and the like, through the groove 26 when the internal space IS is kept in a sealed state in the press working control process. An embodiment of a plastically processed wood manufacturing method comprising a pipe 41 for controlling high-temperature and high-pressure steam in the compression surface of the wood NW2 and the internal space IS, a vapor pressure control step achieved by a valve V5, a drain pipe 42, and the like can do.

And the plastic processing timber manufacturing apparatus 200 of this Embodiment is the hole H drilled in the whole surface seeing from the back side of the timber NW2, and the diameter of the hole H of the timber NW2 is set to 2 [mm]. The density of the holes H in the wood NW2 is set to 80 [pieces] / 100 [cm ² ], and the depth of the holes H in the wood NW2 is equivalent to 90% of the original plate thickness. It is to set.
According to the experiments by the inventors, the diameter of the hole H of the wood NW2 is set to 0.2 to 10.0 [mm], and the density of the hole H of the wood NW2 is set to 1 to 100 [pieces] / 100 [cm]. ² ], if the depth of the hole H of the wood NW2 is set to be equivalent to 10 to 90% of the original plate thickness, a good composition processed wood can be obtained efficiently depending on conditions such as heating and compression Was confirmed. If the efficiency of productivity is ignored, it is obvious that the conditions of the diameter of the hole H, the density of the hole H, and the depth of the hole H of the wood NW2 become wider.

That is, in the wood NW2 as a raw material, holes H having a diameter of 2 [mm] in a direction substantially orthogonal to the fiber direction from the back of the tree toward the front of the tree have a density of 80 [pieces] / 100 [cm ² ]. The depth is equivalent to 90% of the original plate thickness and is drilled on the entire surface. After the wood NW2 is placed in the internal space IS of the press board 10B, heat compression processing is executed by the upper press board 11A and the lower press board 21B, and the wood NW2 is compression-molded. The internal space IS of the press panel 10B is held in a sealed state at a predetermined interval via the seal member 14 and is released after a predetermined time has elapsed. Immediately before the internal space IS is opened from the sealed state, the valve V5 is opened, so that high-temperature and high-pressure steam existing in the internal space IS is discharged through the pipe port 41a, the pipe 41, and the drain pipe 42. Is done.

For this reason, while the wood NW2 placed in the internal space IS of the press panel 10B is heated and compressed and the internal space IS is kept in a sealed state for a predetermined time, the back side of the wood NW2 of the lower press panel 21B and Originally included in the wood NW2 through a hole H formed in the wood NW2 through a gap formed by a groove portion 26 having a predetermined cross-sectional shape that is formed on the compression surface that abuts and communicates with the internal space IS of the press board 10B. Since the moisture becomes steam and can pass between the interior space IS, the wood NW2 is uniformly fixed.
Thus, according to the plastically processed wood manufacturing apparatus 200 of the present embodiment, the wood NW2 is heated and compressed, the internal space IS is held and fixed in a sealed state for a predetermined time, and the internal space IS is released from the sealed state. Thus, it is possible to manufacture plastic processed wood PW2 having a stable quality that does not bulge and deform even if it is immediately taken out from the internal space IS of the press panel 10B and naturally cooled.

Here, in the plastic working timber manufacturing apparatus 200 of the above-described embodiment, the hole H is drilled on the entire back side of the timber NW2, but it is about 5 to 15 [cm], for example, from both ends of the timber. In this range, since water vapor easily enters and exits from the end of the mouth, it is not necessary to make the hole H, and it is sufficient that the hole is formed in the range inward of the hole under the above conditions.
Such a plastically processed wood manufacturing apparatus 200 is for drilling the hole H in a predetermined range on the back side of the wood NW2 ′, and can be expected to have the same functions and effects as those of the above-described embodiment.

  Furthermore, in the plastically processed wood manufacturing apparatus 200 of the above-described embodiment, a hole H having a predetermined diameter is formed in a predetermined direction in a direction perpendicular to the back side of the wood NW2, that is, in a direction substantially orthogonal to the fiber direction. The wood NW2 drilled at a predetermined depth with a density is used, but a hole H ′ having a predetermined diameter is predetermined in a direction perpendicular to the length direction of the grain, that is, in a direction substantially perpendicular to the fiber direction. The same action and effect can be expected even if wood NW2 ′ penetrated and drilled at a density of is used. In addition, the plastically processed wood PW2 ′ manufactured from the wood NW2 ′ that has been drilled through the holes H ′ at a predetermined density is in a state in which the holes H ′ are also formed on the surface side of the product. For example, when used as a waist plate material in a room, the humidity of the room is adjusted through the hole H ′, and a new action and effect can be expected that the odor of the room is replaced with the scent of wood and alleviated. .

By the way, in the said embodiment, although the groove part 26 is formed in the lower press board 21B, even if the convex plane 25 which forms this groove part 26 is integral with the lower press board 21B, it combines with another body. You may make it comprise.
Moreover, in the said embodiment, in the lower press board 21B, it cuts so that the convex plane 25 of the lower press board 21B may become a truncated pyramid shape by the predetermined space | interval in the fiber direction of the wood NW2, and the direction orthogonal to it. As a result, the groove portion 26 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 substantially U-shaped. V shape etc. may be sufficient, and the point should just be the shape which water vapor | steam passes easily and the plastic processing wood used as a product is easy to remove. Furthermore, as shown in FIG. 11, only the fiber direction of the wood NW2 as the groove 26a on the convex plane 25a of the lower press board 21C, and as shown in FIG. 12, the wood as the groove 26b on the convex plane 25b of the lower press board 21D. It may be formed at predetermined intervals in the fiber direction of NW2 and in an oblique direction intersecting therewith.

[Embodiment 3]
FIG. 13: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus 300 concerning Embodiment 3 of this invention. In the third embodiment, without forming a convex part or a concave part on the lower press board 21E, a metal mesh 31 as a gap forming member is arranged on the contact surface of the lower press board 21E with the back side of the wood NW2. It is a thing. That is, in the plastic working wood manufacturing apparatus 300, the protrusion 24 formed on the lower press board 21A in the above-described first embodiment or the groove part formed on the convex plane 25 of the lower press board 21B in the above-described second embodiment. 26 is replaced with a wire mesh 31 on the lower press panel 21E. Further, in the wood NW2 used in the third embodiment, as shown in FIG. 9 of the above-described second embodiment, a similar hole H is formed on the back side of the surface perpendicular to the length direction of the grain. It has been drilled. In addition, about the thing which consists of a structure similar to the above-mentioned Embodiment 1, 2, or an equivalent part, the same code | symbol and the same symbol are attached | subjected, and the overlapping description is abbreviate | omitted.

As shown in FIG. 13, by arranging the wire mesh 31 on the lower press board 21E of the press board 10C, a gap is formed between the lower press board 21E and the back side of the wood NW2. Therefore, high-temperature and high-pressure steam can freely pass between the internal space IS formed by the upper press board 11A and the lower press board 21E of the press board 10C and the hole H drilled on the back side of the wood NW2. .
Here, the wire mesh 31 used in the present embodiment is a lower press without being greatly deformed when the wood NW2 is heated and compressed by the upper press board 11A and the lower press board 21E in the internal space IS of the press board 10C. It is necessary to have a strength that can reliably keep the gap between the board 21E and the back side of the wood NW2.

Next, a process procedure for manufacturing the plastic processed wood PW3 as a product from the raw material wood NW2 by the plastic processed wood manufacturing apparatus 300 will be described with reference to FIGS. 14 (a) to 14 (e). In FIG. 14A to FIG. 14E, piping on the steam supply side and steam discharge side is omitted.
First, as shown in FIG. 14 (a), the upper press platen 11A is lifted with respect to the lower press platen 21E on the fixed side of the press platen 10C in the plastic working wood manufacturing apparatus 300, and sawn into a predetermined size in advance. The wood NW2 in which the holes H are formed is placed in the internal space IS formed by the upper press board 11A and the lower press board 21E.

  Next, as shown in FIG. 14 (b), the pressure on the upper press disk 11A is 0.05 to 0 against the wood NW2 placed on the wire mesh 31 provided on the fixed lower press board 21E. Lower at 3 [MPa] and contact with the upper surface of the wood NW2. The upper press board 11A and the lower press board 21E are held at 120 [° C.] by passing high-temperature steam at a specific temperature [° C.] of 110 to 160 [° C.] through the pipe lines 13 and 23. (Temperature raising treatment time 10 to 50 [min]). In the plastically processed wood manufacturing apparatus 300 of the present embodiment, the temperature increase processing time of the press panel 10C requires a long time only at the first startup, although it depends on the ambient environment temperature when continuously processed.

  Next, as shown in FIG. 14 (c), the compression pressure of the upper press platen 11A is set to 2 to 5 [MPa] with respect to the fixed-side lower press platen 21E, and the wood NW2 is moved to the upper press platen 11A and the lower press platen 21E. It is heated and compressed by the press panel 21E (processing time 10 to 50 [min]). When the peripheral edge 12 of the upper press board 11A comes into contact with the peripheral edge 22 of the lower press board 21E, the upper press board 11A and the lower press board 21E are sealed by the seal member 14 disposed on the peripheral edge 12 of the upper press board 11A. The internal space IS formed at is sealed. While the compression pressure by the upper press platen 11A and the lower press platen 21E 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 10 to 160 [min]. To a specific temperature during

At this time, the back side of the timber NW placed on the wire mesh 31 disposed on the lower press board 21E is deformed so as to bite into the wire mesh 31, but the space of the wire mesh 31 is filled up. There is no sufficient space for water vapor to pass through. The compression rate of the wood NW2 is determined by the peripheral edge 12 of the upper press board 11A coming into contact with the peripheral edge 22 of the lower press board 21E.
And in the sealed state of the internal space IS shown in FIG.14 (c), the compression pressure of the upper press board 11A and the lower press board 21E is maintained, and internal temperature IS is 150-210 [degreeC] specific temperature. The fixing is performed to form the plastically processed wood PW3 which is held for 40 to 120 [min] and does not return when the heat compression of the wood NW2 is released. At this time, through the space formed by the metal mesh 31 disposed on the lower press board 21E, the internal space IS and the inside of the hole H on the back side of the surface perpendicular to the length direction of the grain of the wood NW2 are high. High-pressure steam can enter and exit freely.

  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 a vapor pressure process, and the valve V5 is appropriately opened and closed. As a result, the high-temperature and high-pressure water vapor is discharged from the internal space IS to the drain pipe 42 side through the pipe port 41a and the pipe 41, so that excess water in the internal space IS based on the moisture content of the original wood NW2 is obtained. It is removed and the interior space IS is adjusted to have a predetermined vapor pressure.

Next, as shown in FIG. 14 (d), immediately before the internal space IS is opened from the sealed state, the valve 42 is opened as a steam treatment, so that the internal space IS passes through the piping port 41a and the piping 41. The high-temperature and high-pressure steam is discharged from the drain pipe 42 side. At this time, the supply of water vapor for maintaining the upper press plate 11 and the lower press plate 21 'at a specific temperature between 150 and 210 [deg.] C. is also temporarily stopped.
Next, as shown in FIG. 14 (e), the upper press platen 11A is raised relative to the fixed-side lower press platen 21E so as not to lower the temperature of the upper press platen 11A and the lower press platen 21E as much as possible. The plastic-processed wood PW3 that is a finished product is taken out from the internal space IS, and a series of processing steps is completed.

  That is, in the plastic working wood manufacturing apparatus 300 according to the present embodiment, the cooling process for the upper press board 11A and the lower press board 21E before the take-out, which has been conventionally essential for the production of the plastic working wood PW3, can be omitted. For this reason, when the internal space IS of the upper press board 11A and the lower press board 21E is in a sealed state, the hole H drilled in the wood NW2 through the wire mesh 31 provided in the lower press board 21E. Water vapor can freely pass between the inside and the internal space IS, and moisture originally contained in the wood NW2 is made uniform.

  Therefore, after the water vapor is discharged from the internal space IS after fixing, it is possible to obtain a plastic-processed wood PW3 having a stable quality that does not bulge and deform even if it is immediately taken out and allowed to cool naturally. It should be noted that the back side of the plastically processed wood PW3 bites into the wire mesh 31 and the pattern shape of the wire mesh 31 remains, but it is opposite to the surface of the wood surface perpendicular to the length direction of the grain that is the surface side of the product. There is no problem because it is behind the tree. In addition, there is no problem if the portion of the wire mesh 31 where the pattern shape remains is set in advance so as to be within a dimensional range that is a cutting allowance for commercialization. Furthermore, the portion where the pattern shape of the metal mesh 31 remains on the back side of the product is preferable because it has a role of assisting adhesion in the case of the adhesive specification, and the uneven shape on the back side of the plastic processed wood PW3 is a problem in commercialization. It will never be.

  For this reason, in the series of processing steps in the plastic working wood manufacturing apparatus 300 of the present embodiment, it is not necessary to forcibly cool the upper press platen 11A and the lower press platen 21E, and the upper press platen 11A and the lower press platen 21E If a new wood NW2 is placed in the internal space IS and the supply of water vapor at a specific temperature between 150 to 210 [deg.] C. to the upper press board 11A and the lower press board 21E is started, the process for the new wood NW2 Can be migrated as is.

  As described above, the plastic working wood manufacturing apparatus 300 according to the present embodiment forms the internal space IS by the structure divided into a plurality of parts and changes the volume of the internal space IS to change the volume of the internal press space 11A. And a press board 10C composed of the lower press board 21E and the back side of the wood NW2 on the press board 10C when press-compressing in a direction perpendicular to the length direction of the grain of the wood NW2 placed in the internal space IS On the compression surface side, a wire net 31 is disposed as an internal space forming member that forms a gap with the wood NW2, and the wood NW2 placed in the internal space IS is 150 to 210 [° C.]. The steam supply side pipes ST1 and S2 are heated and compressed at a specific temperature between 2 and 5 [MPa], the internal space IS is kept in a sealed state, and is opened after 40 to 120 [min] has elapsed. 2, ST3, valves V1, V2, V3, pressure gauge P1, steam discharge side pipes ET1, ET2, valve V4, drain pipe 42, boiler device (not shown), press lifting device (not shown) including a hydraulic mechanism, etc. Press working control means achieved in this way, and when the internal space IS is kept in a sealed state by the press working control means, high-temperature and high-pressure steam on the compression surface of the wood NW2 and the internal space IS through the wire mesh 31 And a vapor pressure control means that is achieved by a valve 41, a valve V5, a drain pipe 42, and the like.

  In addition, by reading each means in the plastic working wood manufacturing apparatus 300 of the present embodiment as a process, that is, the internal space IS is formed by a structure divided into a plurality of parts, and the volume of the internal space IS is changed. When press-compressing in the direction perpendicular to the length direction of the grain of the wood NW2 placed in the internal space IS with the press machine 10C composed of the upper press machine 11A and the lower press machine 21E that can be press-compressed. A metal mesh 31 as an internal space forming member that forms a gap with the wood NW2 is disposed on the compression surface side that is the back side of the wood NW2 in the press panel 10C, and is placed in the internal space IS. The wood NW2 is heated and compressed at 150 to 210 [° C.] and 2 to 5 [MPa], the internal space IS is kept in a sealed state, and it is opened after 40 to 120 [min] has elapsed. Pipes ST1, ST2 and ST3 on the air supply side, valves V1, V2 and V3, pipes ET1 and ET2 on the pressure gauge P1 steam discharge side, valve V4, drain pipe 42, boiler device (not shown), press lift including hydraulic mechanism The press working control process achieved by an apparatus (not shown) and the like, and the compression surface of the wood NW2 and the internal space through the wire mesh 31 when the internal space IS is kept in a sealed state in the press working control process An embodiment of a plastic working wood manufacturing method comprising a pipe 41 for controlling high-temperature and high-pressure steam in IS and a vapor pressure control step achieved by a valve V5, a drain pipe 42, and the like can be used.

And the plastic processing timber manufacturing apparatus 300 of this Embodiment drills the hole H in the whole surface seeing from the tree back side of the timber NW2, and the diameter of the hole H of the timber NW is 1.5 [mm]. The density of the holes H of the wood NW is set to 60 [pieces] / 100 [cm ² ], and the depth of the holes H of the wood NW is set to 80% of the original plate thickness. It is to be set considerably.
That is, in the wood NW2 as a raw material, holes H having a diameter of 1.5 [mm] in a direction substantially orthogonal to the fiber direction from the back of the tree toward the front of the tree have a density of 60 [pieces] / 100 [cm]. ² ], the depth corresponds to 80% of the original plate thickness, and is drilled on the entire surface. After the wood NW2 is placed in the internal space IS of the press board 10C, a heat compression process is executed by the upper press board 11A and the lower press board 21E, and the wood NW2 is compression-molded. The internal space IS of the press panel 10C is held in a sealed state at a predetermined interval via the seal member 14, and is released after a predetermined time has elapsed. Immediately before the internal space IS is opened from the sealed state, the valve V5 is opened, so that high-temperature and high-pressure steam existing in the internal space IS is discharged through the pipe port 41a, the pipe 41, and the drain pipe 42. Is done.

Therefore, while the wood NW2 placed in the internal space IS of the press board 10C is heated and compressed and the internal space IS is kept in a sealed state for a predetermined time, the back side of the wood NW2 of the lower press board 21E and Is originally included in the wood NW2 from the hole H formed in the wood NW2 through a gap formed by the metal mesh 31 formed between the lower press board 21E and the back side of the wood NW2. The water NW2 can be fixed to the interior space IS as water becomes steam, so that the wood NW2 is uniformly fixed.
Thus, according to the plastically processed wood manufacturing apparatus 300 of the present embodiment, the wood NW2 is heated and compressed, the internal space IS is held and fixed in a sealed state for a predetermined time, and the internal space IS is released from the sealed state. Thus, it is possible to manufacture plastic-processed wood PW3 having a stable quality that does not bulge and deform even if it is immediately taken out from the internal space IS of the press panel 10C and naturally cooled.

Here, in the plastic working timber manufacturing apparatus 300 of the above-described embodiment, the hole H is drilled on the entire back side of the timber NW2, but it is, for example, about 5 to 15 [cm] from the both ends of the timber. In this range, since water vapor easily enters and exits from the end of the mouth, it is not necessary to make the hole H, and it is sufficient that the hole is formed in the range inward of the hole under the above conditions.
Such plastically processed wood manufacturing apparatus 300 drills holes H in a predetermined range on the back side of wood NW2 ′, and can be expected to have the same functions and effects as those of the above-described embodiment.

  Furthermore, in the plastically processed wood manufacturing apparatus 300 of the above-described embodiment, a hole H having a predetermined diameter is formed in a predetermined direction in a direction perpendicular to the back side of the wood NW2, that is, in a direction substantially orthogonal to the fiber direction. The wood NW2 drilled at a predetermined depth with a density is used, but a hole H ′ having a predetermined diameter is predetermined in a direction perpendicular to the length direction of the grain, that is, in a direction substantially perpendicular to the fiber direction. The same action and effect can be expected even if wood NW2 'penetrated and drilled at a density of is used. In addition, the plastically processed wood PW3 ′ manufactured from the wood NW2 ′ having the holes H ′ penetrating at a predetermined density in this way has a hole on the surface side of the product as in the second embodiment. H 'is formed, and is used as, for example, a waist plate material in the room, so that the humidity of the room is adjusted through the hole H', and the odor of the room is replaced with the scent of wood and is alleviated. New actions and effects can be expected. In addition, even a plywood using an adhesive or the like has a high density due to the compression processing of the wood NW2, and the risk of releasing formaldehyde or the like into the room is reduced.

By the way, the wire net 31 used in the above embodiment naturally has a strength that can withstand heat compression in the press process, but the wire diameter, the fineness of the eyes, and the like are wood NW2. The most suitable one is selected in advance by experiments or the like with respect to the specification of the hole H to be drilled.
In the above embodiment, the wire mesh 31 is disposed on the lower press panel 21E. However, since the position may be shifted by simply placing it, for example, If a concave part matching the outer shape of the metal mesh 31 is formed in the lower press panel 21E, and the metal mesh 31 is fitted into this concave part and fixed together with adhesion or the like, misalignment is prevented and workability is improved. can do.

  And in the said embodiment, although the metal mesh 31 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. The same effect can be expected by using, and if these materials are used, the pattern shape remaining on the back side of the plastically processed wood PW3 can be made inconspicuous, and the workability can be improved. Can also be obtained.

In the said embodiment, when the diameter of the hole H of wood is set to 0.2-2.0 [mm], the finish surface of an opposite surface is good, but when implementing this invention, it is 0.2. It has been confirmed by the inventors' experiments that there is no problem even if it is used in the range of -10 [mm].
In the said embodiment, although the density of the hole H of wood set to 10-100 [piece] per 100 [cm < ² >], it experimented by the moisture content of wood, 1-10 is also possible, 100- The inventors' experiments confirmed that it is possible to exceed 200 or more.

In the above embodiment, the experiment was performed with the depth of the hole H of the wood set to be equivalent to 30 to 90% of the original plate thickness. However, in this region, the depth is suitable according to the original plate thickness of the wood. The effect that the uniform fixation of the wood was smoothly achieved through the hole having the depth set to be obtained. However, it does not mean that 0 to 30% cannot be used, and if the hole H is to be formed in the wood, the depth of the hole H in the wood is determined from the thickness of the original plate because of its labor and finish. 10 to 90 [%] is judged to be appropriate.
In the above embodiment, the case where the hole H of the wood is drilled on the entire surface of the wood has been described. However, by changing the density distribution of the hole H, the nodes can be uniformly processed or bent. It has been confirmed by the inventors' experiments that it is possible to correct or conversely form a bend.

In the above-described embodiment, the experiment was performed by setting the lower portion of the protrusion 24 to be equivalent to 10 to 30% of the thickness of the wood based on the diameter of 7 mm and the height of 12 mm. In other words, it was confirmed that an effect was also obtained at 5-60 exceeding this range. Further, it has been confirmed that not only the shape of the protruding portion 24 but also a substantially conical shape in which a slit is formed around it may be used.
According to the plastic processing wood production apparatus and production method of the present invention, a light and soft wood material such as cedar can be used as a raw material, and the hardness of the entire plate thickness as well as the surface of the original wood is greatly improved. This makes it possible to produce plastic-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 can be used for a wide range of flooring materials, waistboard materials, indoor furniture materials, and exterior materials for houses used by surface coating. Applications are expected.

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 perspective view showing details of a protrusion as a convex portion formed on the lower press plate of the press plate of FIG. FIG. 3 is a perspective view showing the length direction of the wood grain used in the plastic working wood manufacturing apparatus according to the first embodiment of the present invention, the grid surface, and the mouth end surface. FIG. 4 is explanatory drawing which shows the process sequence of the plastic working wood manufacturing apparatus concerning Embodiment 1 of this invention. FIG. 5 is a perspective view showing a modified example of the protrusions formed on the lower press platen of the press plate of FIG. FIG. 6 is a schematic view showing a modified example of a press board composed of a plurality of divided structures in the plastic working wood manufacturing apparatus according to the first embodiment of the present invention. FIG. 7: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 2 of this invention. FIG. 8 is a perspective view showing details of a groove portion as a concave portion formed in the lower press plate of the press plate of FIG. FIG. 9 is a perspective view showing a processed state of holes drilled on the back side of the wood that is perpendicular to the length direction of the wood grain used in the plastic working wood manufacturing apparatus according to the second embodiment of the present invention. . FIG. 10 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. 11 is a perspective view showing a modification of the groove formed in the lower press platen of the press plate of FIG. 12 is a top view showing another modification of the groove formed in the lower press platen of the press plate of FIG. FIG. 13: is sectional drawing which shows schematic structure of the plastic working wood manufacturing apparatus concerning Embodiment 3 of this invention. FIG. 14 is an explanatory diagram showing a process procedure of the plastic working wood manufacturing apparatus according to the third embodiment of the present invention.

10A Press board 11A Upper press board 14 Seal member 21A Lower press board 26 Groove part 100 Plastic working wood manufacturing equipment H hole IS Internal space NW1 Wood PW1 Plastic working wood

Claims (7)

An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is A press board formed with a convex portion having a predetermined cross-sectional shape enough to bite into wood;
When pressed compressed in a direction perpendicular to the length direction of the grain of the wood that is mounted on the interior space, predetermined so as to bite into the convex portion in the timber placed within the interior space Press working control means for heating and compressing at a temperature and a predetermined pressure;
The press working control means holds the internal space in a sealed state, opens it after a lapse of a predetermined time, and when the internal space is held in a sealed state, the internal space and the convex portion are interposed therebetween. Vapor pressure control means for controlling high-temperature and high-pressure water vapor on the compressed surface of the wood. An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is A press board in which a concave portion having a predetermined cross-sectional shape communicating with the internal space is formed;
When pressed compressed in a direction perpendicular to the length direction of the grain of the wood that is mounted on the interior space at a predetermined temperature so as to bite into the concave portion in the timber placed within the interior space And press working control means for heating and compressing at a predetermined pressure,
The press working control means holds the internal space in a sealed state, opens it after a lapse of a predetermined time, and when the internal space is held in a sealed state, the internal space and the concave portion Vapor pressure control means for controlling high-temperature and high-pressure water vapor on the compressed surface of wood. An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is A gap forming member made of a porous material that forms a gap with wood and makes the compressed surface of the wood to be pressed compressed has the same temperature, pressure, and humidity (vapor pressure) state as the internal space. A press board arranged;
A press for compressing the wood placed in the internal space at a predetermined temperature and a predetermined pressure when press-compressing the wood placed in the internal space in a direction perpendicular to the length direction of the grain of the wood. Processing control means;
The press working control means holds the internal space in a sealed state and opens it after a predetermined time has passed, and when the internal space is held in a sealed state, the internal space and the gap forming member are interposed. Vapor pressure control means for controlling high-temperature and high-pressure water vapor on the compressed surface of the wood.   2. The wood according to claim 1, wherein holes having a predetermined diameter in a direction perpendicular to the length direction of the grain are formed at a predetermined density and a predetermined depth. The plastically processed wood manufacturing apparatus according to any one of 3. An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is When press-compressing in a direction perpendicular to the length direction of the grain of the wood placed in the internal space with a press board formed with a convex portion having a predetermined cross-sectional shape enough to bite into the wood A pressing control step of heating and compressing the wood placed in the internal space at a predetermined temperature and a predetermined pressure so as to bite into the convex portion;
In the press working control step, the internal space is held in a sealed state, and is opened after a predetermined time, and when the internal space is held in a sealed state, the internal space and the convex portion are interposed. And a vapor pressure control process for controlling high-temperature and high-pressure water vapor on the compressed surface of the wood. An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is When press-compressing in a direction perpendicular to the length direction of the grain of the wood placed in the internal space, with a press plate formed with a concave portion having a predetermined cross-sectional shape communicating with the internal space, A pressing control step of heating and compressing at a predetermined temperature and a predetermined pressure so that the wood placed in the internal space is bitten into the concave portion;
In the press working control step, the internal space is held in a sealed state, and is opened after a predetermined time. When the internal space is held in a sealed state, the internal space and the concave portion are interposed. And a vapor pressure control process for controlling high-temperature and high-pressure water vapor on the compressed surface of the wood. An internal space is formed by a structure divided into a plurality of parts, and the volume of the internal space is changed to be press-compressible, and at least one compression surface side of the wood placed in the internal space is A gap forming member made of a porous material that forms a gap with wood and makes the compressed surface of the wood to be pressed compressed has the same temperature, pressure, and humidity (vapor pressure) state as the internal space. in press platen comprising disposed, when the pressing compressed in a direction perpendicular to the length direction of the grain of the wood that is mounted on the interior space, given the timber placed within the interior space A press working control process for heating and compressing at a temperature and a predetermined pressure;
In the press working control step, the internal space is held in a sealed state, and is opened after a predetermined time. When the internal space is held in a sealed state, the internal space and the gap forming member are interposed. And a vapor pressure control step for controlling high-temperature and high-pressure water vapor on the compressed surface of the wood.

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