JP3686757B2 - Wood product manufacturing method and manufacturing mold - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a wood product having various shapes such as a board shape, a column shape, a rod shape, a lump shape, and a three-dimensional shape from a wood raw material such as wood powder, wood piece, wood fiber, bamboo fiber, branch leaf, and wood thin plate. And manufacturing molds.
[0002]
[Prior art]
Conventionally, as a method for manufacturing a wooden board, a wood raw material such as a small piece of wood, wood fiber or bamboo fiber is mixed with a thermosetting resin (such as a phenolic resin) as an adhesive and molded into a predetermined shape. In general, a method (MDF) in which the thermosetting resin is thermally cured by heating with a hot plate hot press to fix the wood raw material is performed.
[0003]
[Problems to be solved by the invention]
As described above, since the conventional wood board uses a thermosetting resin, the resin material cost is required and it becomes expensive. In addition, because wood materials and thermosetting resins are mixed and fixed and fastened, the water absorption characteristic of wood is lost, and when it is discarded, it cannot be reused and harmful due to thermosetting resins. There was a problem that pollution such as gas occurred.
[0004]
Therefore, recently, a method for producing a wooden board using only wooden raw materials such as small pieces of wood and wood fibers without using a resin or the like as an adhesive has been studied. This new wood board cannot be manufactured by conventional MDF equipment, and a new manufacturing apparatus is required. As this new manufacturing device, a combination of a high-temperature and high-pressure steam heating device and a compression device (press machine, etc.) has been studied. Therefore, installation will be troubled. In addition, there is a problem in efficiency because the number of wood boards that can be manufactured simultaneously is limited.
[0005]
The object of the present invention is to solve the above problems, and to produce a wood product from wood raw materials such as wood powder, wood pieces, wood fibers, bamboo fiber, branches and leaves, and wood thin plates, to which no adhesive is substantially added, Not only can the water absorption of the wood be maintained, it can be reused at the time of disposal, the pollution caused by the adhesive can be eliminated, etc., but also the manufacture can be carried out efficiently with a simple, inexpensive and small device. It is to provide a method for manufacturing a wooden product and a mold for manufacturing.
[0006]
[Means for Solving the Problems]
(1) First, the method for producing a wooden product according to the present invention is as follows.
A wood raw material filling process for filling wood raw materials such as wood powder, wood pieces, wood fibers, bamboo fiber, branches and leaves, wood thin plates, etc., in which adhesive is not substantially added to the container part of the production mold,
Putting the production mold into a heating device, and softening the wooden raw material by heating the wooden raw material to 80 ° C. or higher; and
The manufacturing die is taken out of the heating device and set in the compression device, and the pressing portion of the manufacturing die fitted into the container portion through the opening is pressed into the container portion to compress the wood raw material, and the pressing portion is in its pushing position. A wood raw material compression process that is locked by a locking mechanism;
The manufacturing mold is removed from the compression apparatus and placed in a heating apparatus together with the locked locking mechanism. After heating the compressed woody material to 180 ° C. or higher, the manufacturing mold is taken out from the heating apparatus or from the heating apparatus. A wooden raw material fixing process to fix the wooden raw material in a compressed state by cooling it into a wooden product,
A wooden product demolding step of releasing the lock mechanism to remove the presser from the container and demolding the wooden product.
[0007]
Here, the heating in the wood raw material softening step is preferably wet heating (referred to heating performed by actively adding moisture), but if the wooden raw material contains moisture, dry heating (actively removing moisture). It may be heating that is not added.) Examples of the wet heating include high-temperature and high-pressure steam heating and high-frequency heating after moisture is previously contained in the woody material. The heating temperature is more preferably 100 ° C. or higher. The upper limit of the heating temperature is not particularly limited, but is suitably up to about 150 ° C. Softening can be performed by a method other than heating (for example, addition of a softening agent). However, when using this production mold, heating is most suitable in terms of efficiency, cost, and the like.
[0008]
The heating in the wood raw material fixing step is also preferably wet heating, but may be dry heating when the wooden raw material contains moisture. Examples of wet heating are as described above. The heating temperature is preferably 180 ° C. or higher in the case of wet heating, but is preferably 200 ° C. or higher in the case of dry heating. The upper limit of the heating temperature is not particularly limited, and is suitable to the extent that the wood material is not damaged.
[0009]
The heating device used in the wood raw material softening step may be shared with the heating device used in the wooden raw material fixing step, or may be a separate heating device.
[0010]
It is preferable to include a “wood raw material pre-compression step in which the production mold is set in a compression device and the wooden raw material is pre-compressed” between the wooden raw material filling step and the wooden raw material softening step. The main purpose of the process is to reduce the height of the bulky wood material, so that the wood material can be pre-compressed to a height of 1/4 to 3/4 of the height at the time of filling. Preferred (more preferably 1/3 to 2/3).
[0011]
On the other hand, the main purpose of the wood raw material compression process is to compact the wood raw material wood powder, wood pieces, wood fibers, bamboo fiber, branches and leaves, wood thin plates, etc., so that they can be fixed in the subsequent wood raw material fixing process. In addition, since the density at the time of filling differs depending on the kind of the wood raw material, it is difficult to specify an appropriate compression ratio by changing the height.
[0012]
Furthermore, after the preliminary compression, if the height of the container part is reduced by removing only the bottom part containing the pre-compressed wood raw material by removing the opening side part of the container part, the subsequent wood raw material softening step In the wood raw material compression step and the wood raw material immobilization step, the height of the heating device and the compression device to be used can be lowered, or the number of wood raw materials that can be processed at the same time can be increased.
[0013]
In the wood raw material softening process, the wooden raw material compression process, and the wooden raw material fixing process, a plurality of container portions and a plurality of presser portions are alternately arranged in a plurality of stages to soften, compress and fix the wooden raw material. It is preferable in terms of efficiency, cost, etc. to perform each of these processes simultaneously in all stages.
[0014]
(2) Next, the mold for producing a wooden product according to the present invention includes a container part having an opening and a bottom, a presser part that can be inserted into the container part from the opening, and wood powder and a small piece of wood in the container part. And a lock mechanism that locks the presser portion in its pressed position when the wood raw material such as wood fiber, bamboo fiber, branches and leaves, and a thin wood plate is filled, and the presser portion is pressed into the container portion and the wooden raw material is compressed.
[0015]
A substrate on which the container portion is placed, and a guide column that guides the movement of the pressing portion when it is pushed by penetrating the guide hole of the extending plate that is suspended from the substrate and extends to the holding portion. Is preferred. In this case, it is more preferable that a support spring for supporting the pressing portion in a floating state above the container portion is interposed between the substrate and the extended plate.
[0016]
The lock mechanism is preferably configured as in the following (1), (2), (3), and (4) in accordance with the above-described configurations.
(1) To be able to change the push-in position that can be locked stepwise or continuously.
(2) Configure so that the presser part is automatically locked at the press-in position only by pressing the presser part. An example of the locking mechanism is a ratchet mechanism.
(3) The presser part is configured to be locked with respect to the guide column.
(4) A ratchet mechanism comprising a groove claw formed on the guide post, a stop claw provided on the presser portion so as to be able to be locked to the groove claw, and an urging spring for urging the stop claw toward the groove claw. about.
The lock mechanism is not limited to the ratchet mechanism, and may be a screw tightening mechanism or a pin insertion mechanism, for example.
[0017]
Moreover, it is preferable that the container portion is divided into an opening-side frame portion and a bottom-side bottomed frame portion, and the frame portion is detachably attached to the bottomed frame portion. In this case, it is preferable to set the height of the bottomed frame portion to 1/4 to 3/4 (more preferably 1/3 to 2/3) with respect to the total height of the bottomed frame portion and the frame portion.
[0018]
It is preferable that the insole part is detachably installed on the inner surface of the bottom of the container part. In this case, it is more preferable to form a hole in the bottom of the container portion for pushing and releasing the insole portion.
[0019]
Moreover, in order to increase the number of the wood raw materials which can be processed simultaneously, it is preferable to comprise as following (a) (b) according to said each structure.
[0020]
(A) By arranging a plurality of container portions and a plurality of presser portions alternately in a plurality of stages, it is configured so that all the presser parts can be simultaneously pushed into the container part. Configure the locking mechanism so that it can be locked simultaneously in the push-in position.
[0021]
(B) The extending plate of the plurality of presser portions is passed through the guide pillar, and a plurality of container portions are placed one by one on each presser portion, so that the plurality of container portions and the plurality of presser portions are alternately arranged. By arranging them in a plurality of stages, it is possible to simultaneously push the pressing parts of all stages into the container part, and to configure a locking mechanism so that the pressing parts of all stages can be simultaneously locked to the pushing position.
[0022]
(3) Furthermore, another method for producing a wooden product according to the present invention uses the production mold of (2) above. In other words, wood raw materials such as wood powder, wood pieces, wood fibers, bamboo fiber, branches and leaves, wood thin plates, etc., to which no adhesive is substantially added, are placed in a heating device, heated in a compressed state, and then cooled. It is a method for fixing to a wooden product in a compressed state, and in the heating device, in addition to the wooden raw material, a container part having an opening and a bottom, and the container part can be inserted from the opening For the production of wood products comprising a presser part and a lock mechanism that locks the presser part into its pressed position when the container part is filled with a wooden raw material and the presser part is pushed into the container part to compress the wooden raw material. This is a method for manufacturing a wooden product, in which a mold is inserted, and a compression device that compresses the wooden raw material by pressing the pressing portion into the container portion is not inserted.
In each of the above inventions, the wood raw material such as wood powder, wood pieces, wood fiber, bamboo fiber, branches and leaves, wood thin plate, etc., if its unit is smaller in size, thickness, etc. The specific shape is not limited, and may be new material, scrap material, or waste material (reuse).
[0023]
The method of filling the woody material is not particularly limited, and one or more kinds of wood powder, wood pieces, wood fiber, bamboo fiber, branches and leaves, etc. are randomly filled, or filled according to a predetermined rule. Examples thereof include a method of laminating or alternately repeating the filling of wood powder, wood pieces, wood fiber, bamboo fiber, branches and leaves and the lamination of wood thin plates.
[0024]
“Substantially no adhesive” means not only when no adhesive is added, but also when adding a small amount of adhesive that does not lose the water absorption characteristic of wood, or when it becomes waste material. This also includes the case where a small amount of adhesive is added to such an extent that no pollution caused by the adhesive occurs.
[0025]
The shape of the wood product to be manufactured is not particularly limited, and examples thereof include a board shape, a column shape, a rod shape, a lump shape, and a three-dimensional shape. Therefore, the shape of the container part and the holding part of the manufacturing mold can be appropriately determined according to the shape of the wooden product. For example, when the wooden product is a wooden board, the container portion of the manufacturing mold is formed in a tray shape, and the presser portion is formed in a lid-shaped presser plate.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention embodied in a wood board manufacturing method and manufacturing mold will be described below with reference to the drawings.
[0027]
First, the manufacturing die 1 of the first embodiment shown in FIGS. 1 to 4 includes a tray-like container part 2 having an opening and a bottom, a presser part 3 that can be inserted into the container part 2 from the opening, and a container part. 2 is filled with wood material such as wood powder, wood pieces, wood fiber, bamboo fiber, branches and leaves, wood sheet, and the presser part 3 is pressed into the container part 2 to compress the wood material. And a locking mechanism 4 that locks in the pushing position. Further, the manufacturing die 1 is provided with a substrate 5 on which the container portion 2 (only the bottomed frame portion 22 from which a frame portion 21 described later is removed) is placed, and is suspended from the substrate 5 and extended to the presser portion 3. Two types of thick and thin guide pillars 8 and 9 are provided to guide the movement of the presser portion 3 when it is pushed by penetrating through the guide holes 7 of the extension plate 6. A positioning means (not shown) for the container part 2 is provided on the substrate 5.
[0028]
The container part 2 and the presser part 3 are made of metal, but are not limited to metal, and may be a heat-resistant hard material such as ceramic.
[0029]
A support spring 10 is interposed between the substrate 5 and the extended plate 6 and around the thin guide column 9 to bias the presser part 3 upward and support it in a floating state above the container part 2. ing. Further, a lock nut 11 is screwed to the upper end portion of the thin guide column 9 so that the position can be adjusted, and the lock nut 11 abuts on the upper surface of the extension plate 6 to regulate the upper limit position of the presser portion 3.
[0030]
The locking mechanism 4 includes a pair of groove claws 16 with a tapered surface 15 formed on a thick guide column 8 and a pivotally supported pivotally mounted on the extension plate 6 of the presser portion 3 so as to be locked to the groove claws 16. As shown in FIG. 3, the ratchet mechanism includes a stop claw 17 and a biasing spring 18 that biases the pair of stop claws 17 toward the groove claw 16. According to the lock mechanism 4, as shown in FIGS. 1 to 2, the presser unit 3 can be automatically locked at the press-in position only by pressing the presser unit 3. In the illustrated example, the groove claw 16 has one stage, but by forming the groove claw 16 in a plurality of stages, the push-in position where the lock can be locked can be changed stepwise.
[0031]
As shown in FIG. 4, the container portion 2 is divided into an opening-side frame portion 21 and a bottom-side bottomed frame portion 22, and a plurality of positioning members 23 attached around the frame portion 21. By holding the bottomed frame part 22, the frame part 21 is detachably attached to the bottomed frame part 22.
[0032]
Further, the container part 2 has the same internal area as the product area in order to make the wood raw material M into a wood board P (product) of a desired size, and is about 5 times (2 to 10 times the product thickness). Preferred)). In this example, since the product thickness is 2 cm, the inner height of the container part 2 is 10 cm. In addition, the height of the bottomed frame portion 22 is about ½ of the total height of the bottomed frame portion 22 and the frame portion 21 (the bottom portion is larger than the inner height). That is, the bottomed frame portion 22 and the frame portion 21 have substantially the same height.
[0033]
On the inner surface of the bottom of the bottomed frame portion 22, a plate-like insole portion 24 is detachably installed. In addition, a hole 25 is formed in the bottom of the bottomed frame portion 22 for pressing and releasing the insole portion 24 with a demolding jig (37).
[0034]
Next, the manufacturing die 1 of the second embodiment shown in FIGS. 5 and 6 is different from the first example only in the following points.
(1) The thick guide pillar 8 is formed long and the extended plates 6 of the plurality of presser portions 3 are passed through the thick guide pillar 8.
{Circle around (2)} Between the substrate 5 and the extended plate 6 of the uppermost presser part 3, the uppermost presser part 3 is urged upward and supported in a floating state above the uppermost container part 2. The support spring 10 is interposed.
(3) Instead of the thin guide column 9 and the lock nut 11, the extension plate of the lower presser portion 3 is extended downward from the extension plate 6 of the upper presser portion 3 in order from the top. 6 is provided, and the lower presser portion 3 is supported in a suspended manner by the support column 26 and a support nut 27 screwed to the lower end portion of the support column 26. By this suspension support, the presser portions 3 in the second and lower stages from above are supported in a floating state above the container parts 2 of the respective stages.
(4) A plurality of container portions 2 (only the bottomed frame portion 22 with the frame portion 21 removed) are placed one by one on each presser portion 3.
With the configurations of (1) to (4), a plurality of container parts 2 and a plurality of presser parts 3 are alternately arranged in a plurality of stages, so that all the presser parts 3 can be pushed into the container part 2 at the same time. I have to.
(5) When the uppermost presser part 3 is pushed down, all the presser parts 3 are pushed down in order, and the pawls 17 of the lock mechanism 4 provided on the uppermost extension plate 6 are provided at one location of the guide column 9. By engaging with the groove claw 16 formed in the above, all the presser portions 3 can be simultaneously locked in the pushing position.
[0035]
Next, the manufacturing die 1 of the third embodiment shown in FIGS. 7 and 8 is different from the first example only in the following points.
(1) Instead of the guide columns 8 and 9, a long formed guide column 28 is suspended from the substrate 5, and the extended plate 6 of the uppermost presser 3 is passed through the guide column 28.
(2) A plurality of container portions 2 and a plurality of presser portions 3 (there is no extended plate 6 except for the uppermost portion) are alternately placed on the substrate 5 and arranged in a plurality of stages. The step retainer 3 can be pushed into the container 2 at the same time.
(3) When the uppermost presser part 3 is pushed down, all the presser parts 3 are pushed down, and when a desired push-in position is reached, tightening as a lock mechanism screwed into the upper end part of the guide column 28 The nut 29 is fastened to the uppermost extension plate 6 so that all the presser portions 3 can be simultaneously locked in the pushing position. In this example, the push-in position that can be locked can be continuously changed by adjusting the tightening nut 29.
[0036]
Next, a method for manufacturing a wooden board using the manufacturing mold 1 will be described with reference to FIGS. 9 and 10 and FIGS. FIG. 10 is a schematic plan view of the manufacturing site, in which 30 is a wood raw material storage place, 31 is a weigh scale, 32 is a free bear table, and 33 is a compression device. Reference numeral 34 denotes a high-temperature high-pressure steam heater, 34a denotes a pressure vessel, and 34b denotes a boiler. 35 is a transport vehicle, 36 is a demolding work place, and 37 is a demolding jig.
[0037]
(1) Wood raw material filling process As shown in FIG. 4B, the frame portion 21 is attached to the bottomed frame portion 22 of the container portion 2, and the insole portion 24 is placed on the bottom of the bottomed frame portion 22. Is installed. In this example, since the wooden raw material M is filled to a height of about 10 cm, the height of the container portion 2 is required up to the upper end of the frame portion 21. If the next preliminary compression is small and the filling height may be about 5 cm, the frame portion 21 does not have to be attached from the time of filling.
As shown to Fig.9 (a), about 10 cm of wood raw materials M, such as a wood powder, a small piece of wood, a wood fiber, a bamboo fiber, a branch leaf, and a timber thin board to which the adhesive agent is not substantially added to the container part 2 from the opening. To the height (in this example, almost full). The wooden raw material M is placed in the wooden raw material storage 30 and is weighed by a weight scale 31.
[0038]
(2) Wood raw material pre-compression step As shown in FIG. 9B, the container 2 filled with the wooden raw material M is set in the compression device 33, and the wooden raw material is about ½ of the height at the time of filling. Pre-compress to a height of about 5 cm. After the preliminary compression, the height of the container part 2 can be reduced to ½ by removing the frame part 21 of the container part 2 and using only the bottomed frame part 22 containing the pre-compressed wood raw material M. For example, in the subsequent wooden raw material softening process, wooden raw material compression process and wooden raw material fixation process, the height of the high-temperature high-pressure steam heating device 34 or the compression device 33 used is reduced or the number of wooden raw materials that can be processed simultaneously is increased. Can be.
[0039]
(3) Manufacturing mold setting process In the case of the first embodiment, as shown in FIG. 1, only the bottomed frame portion 22 of the container portion 2 containing the pre-compressed wood raw material M is placed on the substrate 5. Then, the manufacturing mold 1 is set. At this time, by adjusting the screwing position of the lock nut 11, the vertical position of the presser portion 3 is at a level that does not interfere with the loading (and subsequent unloading) of the bottomed frame portion 22 from the side and as much as possible. It is good to set it to a low level. The locking claw 17 of the locking mechanism 4 is disengaged upward from the groove claw 16.
In the case of the second or third embodiment, as shown in FIG. 5 or FIG. 7, the production die 1 is set as described above. FIG. 9C shows the manufacturing die 1 of the second embodiment set in this way.
[0040]
(4) Wood raw material softening process As shown in FIG. 9 (d), the set manufacturing mold 1 (in the figure, the second embodiment, of course, the first or third embodiment may also be used) Is put in the pressure vessel 34a of the high-temperature and high-pressure steam heating device 34, and the wood raw material M is softened by heating it to 100 ° C. or higher with the high-temperature and high-pressure steam that is packed in the pressure vessel 34a from the boiler 34b.
[0041]
(5) Woody raw material compression step As shown in FIG. 9 (e), the production mold 1 is taken out from the high-temperature and high-pressure steam heating device 34 and set in a compression device 33 (here, a press machine). The presser part 3 of the manufacturing mold 1 inserted through the opening is pressed into the container part 2 to compress the wood raw material M, and each presser part 3 is automatically locked at the press position by the lock mechanism 4. The softened wood material M can be easily deformed and compression-molded when pressure is applied under normal pressure. In this example, the thickness of the wood raw material M after compression is about 2 cm. The first embodiment is in the state of FIG. 2, the second embodiment is in the state of FIG. 6, and the third embodiment is in the state of FIG. The operation of the lock mechanism 4 is as described above.
[0042]
(6) Wood raw material immobilization process As shown in FIG. 9 (f), the production mold 1 is removed from the compression device 33 and is put in the pressure vessel 34a of the high-temperature high-pressure steam heating device 34 together with the locked locking mechanism 4. The wood raw material M in a compressed state is wet-heated to 180 ° C. or higher with high-temperature and high-pressure steam packed in the pressure vessel from the boiler 34b, and is kept in that state for a predetermined time (preferably 10 minutes or longer). After that, if the production mold 1 is taken out from the pressure vessel 34a and cooled (preferably cooled to at least 120 ° C. or less), the wooden raw material M is fixed in a compressed state, and the wooden board P having a thickness of 2 cm is used. It becomes. This cooling may be performed in the pressure vessel 34a, but it is more efficient to carry out the cooling out of the pressure vessel 34a.
[0043]
(7) Wood product demolding process After the manufacturing mold 1 is further cooled at the demolding work place 36 (cooled to a temperature at which the worker can touch it), the lock mechanism 4 is unlocked and the container part 2 is removed. The presser part 3 is lifted and removed, the container part 2 is slid sideways and taken out, and the wood board P is removed from the container part 2 as shown in FIG. At this time, if the insole portion 24 is pushed up from the punched hole 25 with a rod-shaped mold removal jig 37, the mold can be easily removed. Further, if the surface treatment with good peelability such as Teflon coating is performed on the upper surface of the insole portion 24, the lower surface of the presser portion 3, the inner surface of the container portion 2, etc., the demolding becomes easier. After removing the wood board P, the empty container part 2 is returned to the wood raw material filling step which is the starting point of this manufacturing method.
[0044]
As described above, by using the manufacturing die 1 of the present embodiment including the container part 2, the presser part 3, and the lock mechanism 4, the wood raw material softening process, the wooden raw material compression process, and the wooden raw material fixing process are performed. Since the high-temperature and high-pressure steam heating device 34 and the compression device 33 used for these processes can be configured separately, both devices 33 and 34 can be made simple, inexpensive and small. it can. In addition, the operation of the high-temperature and high-pressure steam heating device 34 and the compression device 33 can be simplified in a short time, can be continuous and automated, and productivity is remarkably improved.
[0045]
In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Instead of the positioning member 23, a positioning concave portion and a positioning convex portion are relatively provided on the lower end surface of the frame portion 21 and the upper end surface of the bottomed frame portion 22, and by fitting these concave portions and convex portions, The frame portion 21 is detachably attached to the bottomed frame portion 22.
(2) A heating device is directly provided on one or both of the container part 2 and the presser part 3.
[0046]
【The invention's effect】
As described above, according to the method for manufacturing a wooden product and the mold for manufacturing according to the present invention, the woody material such as wood powder, wood pieces, wood fiber, bamboo fiber, branch leaf, and wood sheet without substantially adding an adhesive. It is possible to manufacture wood products from raw materials, and not only provide various effects such as maintaining the water absorption of wood, enabling reuse at the time of disposal, eliminating pollution caused by adhesives, and simplifying the manufacture It can be performed efficiently by an inexpensive and small-sized apparatus.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state before compression of a wood board manufacturing mold according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state after compression of the production mold.
FIG. 3 is a plan view of the manufacturing mold.
4A and 4B are exploded perspective views showing a state before assembly, and FIG. 4B is a perspective view showing a state after assembly.
FIG. 5 is a cross-sectional view showing a state before compression of a wood board manufacturing mold according to a second embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a state after compression of the production mold.
FIG. 7 is a cross-sectional view showing a state before compression of a wood board manufacturing mold according to a third embodiment of the present invention.
FIG. 8 is a cross-sectional view showing a state after compression of the production mold.
FIG. 9 is a schematic explanatory view showing each step in the method for producing a wooden board of the present invention.
FIG. 10 is a schematic plan view of a manufacturing site of the manufacturing method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Manufacturing type | mold 2 Container part 3 Holding part 4 Lock mechanism 5 Board | substrate 6 Extension board 7 Guide hole 8 Thick guide pillar 9 Thin guide pillar 10 Support spring 11 Lock nut 15 Tapered surface 16 Groove claw 17 Stop claw 18 Energizing spring 21 Frame portion 22 Bottomed frame portion 23 Positioning member 24 Sole portion 25 Punch hole 26 Support column 27 Support nut 28 Guide column 29 Tightening nut 33 Compression device 34 High-temperature high-pressure steam heating device 34a Pressure vessel 34b Boiler 37 Demolding jig M Wood material P Wood board

Claims (11)

A wood raw material filling process for filling wood raw materials such as wood powder, wood pieces, wood fibers, bamboo fiber, branches and leaves, wood thin plates, etc., in which adhesive is not substantially added to the container part of the production mold,
Putting the production mold into a heating device, and softening the wooden raw material by heating the wooden raw material to 80 ° C. or higher; and
The manufacturing die is taken out of the heating device and set in the compression device, and the pressing portion of the manufacturing die fitted into the container portion through the opening is pressed into the container portion to compress the wood raw material, and the pressing portion is in its pushing position. A wood raw material compression process that is locked by a locking mechanism;
The manufacturing mold is removed from the compression apparatus and placed in a heating apparatus together with the locked locking mechanism. After heating the compressed woody material to 180 ° C. or higher, the manufacturing mold is taken out from the heating apparatus or from the heating apparatus. A wooden raw material fixing process to fix the wooden raw material in a compressed state by cooling it into a wooden product,
A wooden product manufacturing method comprising: releasing the lock of the locking mechanism to remove the presser from the container portion and releasing the wooden product.   2. The production of wood products according to claim 1, including a "wood material pre-compression step in which the production mold is set in a compression device and the wood material is pre-compressed" between the wood material filling step and the wood material softening step. Method.   3. The method for producing a wooden product according to claim 2, wherein after the preliminary compression, the height of the container portion is reduced by removing the opening side portion of the container portion and using only the bottom side portion containing the pre-compressed wood raw material.   In the wood raw material softening step, the wooden raw material compression step, and the wooden raw material fixing step, a plurality of container portions and a plurality of presser portions are alternately arranged in a plurality of stages to soften, compress and fix the wooden raw material. The method for producing a woody product according to claim 1, 2 or 3, wherein each treatment is performed simultaneously in all stages.   A container part having an opening and a bottom, a presser part that can be inserted into the container part from the opening, and the container part is filled with wood raw materials such as wood powder, small pieces of wood, wood fibers, bamboo fiber, branch leaves, and wood thin plates. A wood product manufacturing die provided with a lock mechanism that locks the presser part into the press position when the presser part is pushed into the container part and the wood raw material is compressed. The wood structure according to claim 5, wherein the lock mechanism is configured such that a push-down position that can be locked can be changed stepwise or continuously, and the press portion is automatically locked to the push position only by pushing the press portion. Product manufacturing mold.   The said container part is divided | segmented into the frame part by the side of an opening, and the bottomed frame part by the side of bottom, The frame part is attached to the bottomed frame part so that removal is possible, For the manufacture of the wooden product Type.   The mold for producing a wooden product according to claim 5, wherein an insole part is detachably installed on the inner surface of the bottom of the container part.   The mold for manufacturing a wooden product according to claim 8, wherein a hole for pushing and releasing the insole part is formed in the bottom of the container part. By arranging a plurality of container parts and a plurality of presser parts alternately in a plurality of stages, it is configured so that all the presser parts can be pushed into the container part at the same time, and all the presser parts are at the pushing position. The mold for producing a wooden product according to claim 5, wherein a lock mechanism is configured so that the lock can be performed simultaneously. Wood raw materials such as wood powder, wood chips, wood fibers, bamboo fibers, branches and leaves, and thin wood sheets, to which no adhesive is substantially added, are put into a heating device, heated in a compressed state, and then cooled in a compressed state. It is a method to fix it as it is to make a wooden product,
In the heating device, in addition to the wood raw material, a container part having an opening and a bottom, a presser part that can be inserted into the container part from the opening, a wooden part is filled in the container part, and a presser part is provided. When the wood raw material is compressed by pushing it into the container part, a wood product manufacturing die having a lock mechanism that locks the presser part in its pushing position is inserted, and the wood raw material is pushed into the container part by pushing the presser part into the container part. The manufacturing method of the wooden product which does not put the compression device which compresses.

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