JP4018569B2 - Method for producing a wooden molded body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a wood molded body obtained by combining finely divided wood materials with a binder.
[0002]
[Prior art]
From the viewpoint of effective use of resources, the active use of so-called woody materials such as waste materials, thinned wood, by-products such as straw and waste, and annual grasses such as kenaf and sisal has been studied. The inventors of the present invention have been developing a molded body (wood molded body) using a wooden material in a board as an interior material of a vehicle or a building. In general, a wooden molded body is molded so that a wooden material subdivided into chips, powders, fibers, or the like is bonded with a binder to maintain a desired shape.
In recent years, the use of petroleum resources has been promoted, and in view of problems in the disposal of wooden moldings, etc., in order to produce environmentally friendly wooden moldings, the present inventors have used natural materials and biodegradability as binders. A technology using these materials has been devised (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-127117 A
[0004]
[Problems to be solved by the invention]
By the way, as a method of adding a binder to a wooden material, a binder solution obtained by dissolving a binder resin in an organic solvent, a dispersion containing a particulate binder resin in a floating state, or a dispersion such as an emulsion is applied to the wooden material. There is a way. In this method, preferable fluidity can be imparted to the binder resin, and a smaller amount of the binder resin can be efficiently dispersed in the wood material. However, when a wood material to which a binder resin is added by this method is molded by a hot press, a wood molded body in which the binder resin is unevenly distributed on the surface is often obtained. In such a wooden molded body, the adhesion between the internal wooden materials is insufficient, and the internal rigidity and peel strength may be small.
[0005]
Therefore, an object of the present invention is to provide a method for producing a wooden molded body having a more uniform binder resin distribution.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, a method for manufacturing a wood molded body, comprising: a resin body including a binding resin capable of binding the wood material between a plurality of wood bodies in which the subdivided wood materials are assembled. Provided is a manufacturing method comprising a step of forming a laminated body, a step of supplying at least a binder resin imparted with fluidity by a liquid medium to the wood body, and a step of heating and pressing the laminated body To do.
In this specification, the “binder resin prepared into a fluid by a medium” means an organic solvent, water, or a mixture thereof, which is prepared into a fluid such as a solution, an emulsion, or a dispersion such as a dispersion. It is a binder resin. Binder resins are various resins capable of binding wood materials and include polyolefins, polyesters, polyurethanes (before cross-linking reaction) and the like. The same applies to the bonding resin.
According to this method, when the laminated body is heated and pressed, the binder resin supplied to the wooden body is favorably dispersed due to its fluidity and is biased toward the surface to be pressed. Further, the resin body between the wooden bodies penetrates into the inside from the surface of the wooden body contacting both surfaces of the resin body by pressurization, and bonds the wooden bodies and the wooden materials inside the wooden bodies well. As a result, the surface of the obtained wood molded body and the wood material in the vicinity of the surface can be reliably bonded to ensure the hardness and strength of the surface. Note that the binder resin supply step may be performed either before or after the laminate is formed.
By constituting the resin body with a fiber material by this method, the laminated body can be entangled with the wood material in the wooden body, and the laminated body can be stabilized. Further, in the heating and pressurizing step, the penetration into the inside of the wood body can be improved, and the binder resin having fluidity supplied to the wood body can be circulated between the wood bodies through the resin body. Therefore, it is also possible to supply a binder resin to only one of the adjacent wooden bodies with the resin body interposed therebetween, and manufacture a wooden molded body in which the binder resin is more uniformly dispersed in the wooden molded body.
In addition, the subdivided wood material is a fiber material, and includes an integration step in which the fiber material of the wood body and the fiber material of the resin body are entangled in the laminate prior to the heating and pressing step. It can be a method. According to this method, the wood fiber and the resin body can be stabilized and stably integrated by intertwining the wood fiber material and the resin fiber material. Moreover, since the boundary between the wooden bodies sandwiching the resin body becomes familiar by integration, an improvement in the peel strength of the wooden molded body due to the entanglement of the wooden material can be expected.
In these manufacturing methods, when the same thermoplastic resin is used for the resin for binding of the resin body and the binder resin, better bonding can be achieved due to the compatibility of the resins. Moreover, a good-quality woody molded body can be obtained with a smaller number of materials.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Below, the manufacturing method of a wooden molded object is demonstrated in detail, referring drawings. The wooden molded body obtained by the method for manufacturing a wooden molded body disclosed in the present application is not limited to a molded body that is completely molded, that is, molded into a product such as an interior board. It also includes a preform having a moldable formability.
[0008]
A manufacturing apparatus capable of carrying out a method for manufacturing a wooden molded body according to an embodiment of the present invention is shown in FIGS. The manufacturing apparatus 10 includes a laminate supply unit 11 that creates the laminate 7, an integrated unit 41 that needle punches the laminate 7, a binder supply unit 61 that supplies a binder resin to the wooden body 3b, and the laminate 7 And a molding part 71 for molding by heating and pressing. In addition, each part is connected by conveyor 91a, 93, 94, and each operation | work is continued.
[0009]
The laminate supply unit 11 shown in FIG. 1 creates a laminate including two wood bodies 3a and 3b and one resin body 5 therebetween. The laminated body supply unit 11 includes wooden body supply units 12a and 12b that generate the wooden bodies 3a and 3b, and a resin body supply unit 31 that supplies a previously prepared resin body 5. Of the two wood body supply parts 12a and 12b, one wood body supply part 12a is disposed at the foremost part (left end in FIG. 1), and the other wood body supply part 12b is disposed further rearward. Yes.
[0010]
The wooden bodies 3a and 3b are aggregates in which subdivided wooden materials are gathered. The woody material is a material obtained from various woody materials such as woody materials such as conifers, broad-leaved trees, and tropical trees, and herbs such as hemp and kenaf. Further, it may be a waste material that has been collected for a while or a chemically treated fibrous material such as pulp. Also, the “subdivided” wood material , Textile It is a material that has been reduced to such an extent that various shapes can be formed by gathering together, such as fibrous shapes. When it is fibrous, the woody materials are intertwined with each other and the aggregate state is more stable, which is preferable. In the present embodiment, the wood bodies 3a and 3b are made of fiber material obtained from kenaf bast. Since kenaf is an annual grass that can be cultivated, it is preferable in terms of the environment.
In addition, reinforcing materials such as synthetic resin fibers and glass fibers, preservatives, colorants, and other auxiliary materials can be appropriately added to the wooden bodies 3a and 3b.
[0011]
In this embodiment, the two woody body supply units 12a and 12b have the same configuration. The wood body supply units 12 a and 12 b include a hopper 14, an air array 16, and a blower 19. The hopper 14 is a portion into which the fiber assembly is introduced, and supplies the fiber assembly to the rear by a predetermined amount. The air array 16 is a known opening device that opens and equalizes the fiber material supplied from the hopper 14. The blower 19 is an air ejection device that blows down the fiber material opened from the roller 17 of the air lay 16 downward.
[0012]
Below the blower 19, conveyors 91a and 91b for accumulating the blown fiber material are provided. In the conveyors 91a and 91b, the conveyor belt 21 is formed of a mesh member. Moreover, the suction part 23 which attracts | sucks air toward the downward direction is provided in the lower part of the position where a fiber material is deposited. Further, a roller 17 for adjusting the basis weight and thickness of the accumulated wood fiber material is provided behind the suction portion 23 by cooperation with the conveyor belt 21.
[0013]
The conveyor 91b of the rear wooden body supply unit 12b conveys the wooden body 3b from the rear to the front (from right to left in FIG. 1). The conveyor 91b includes a guide 25 having a shape extending so as to extend from the end and bent rearward (right side in the drawing). The guide 25 supplies the wooden body 3b conveyed by the conveyor 91b by turning it upside down on the conveyor 91a.
[0014]
The resin body supply unit 31 includes a drum 32 that supplies a previously formed sheet-shaped resin body 5 at a constant speed. The resin body supply unit 31 supplies the resin body 5 at a constant speed to the upper surface of the wood body 3a supplied from the wood body supply unit 12a located in front.
[0015]
The resin body 5 is a sheet-like member containing a binding resin capable of binding a wood material. The binding resin is a thermosetting resin used as a known adhesive material such as various thermoplastic resins such as polyolefin, polyester, and polyacrylic ester, phenol resin, and polyurethane. Preferably, a thermoplastic resin is used, and for example, polypropylene and polylactic acid are preferable. In particular, when polylactic acid having high biodegradability is used, a molded body having biodegradability can be obtained by combination with a wood material. Polylactic acid ester and esterified cellulose can also be used as the highly biodegradable resin.
[0016]
Resin body 5 is Woven Various forms of sheet-like members such as cloth and non-woven fabric can be used. The resin body 5 is preferably one in which the binding resin is formed into a sheet shape, but may be a wood material or other synthetic resin material, etc. Woven A cloth or non-woven fabric with a binding resin attached thereto may be used. It is preferable that the surface of the resin body 5 is uneven because the contact area with the stacked wood bodies 3a and 3b is increased and sliding with the wood bodies 3a and 3b can be suppressed. Therefore, the resin body 5 is , Textile A configuration made of a fiber material is preferable, and a nonwoven fabric is particularly preferable. Also , Textile In any of the woven materials (woven fabric, non-woven fabric, etc.), when the binder resin prepared in the fluid to be described later is formed to be able to circulate, the binder resin is placed between the wooden bodies 3a and 3b with the resin body 5 interposed therebetween. It can be moved and is preferred.
[0017]
The sheet-like molded body of the binding resin can be formed into a fiber by melting the above-described thermoplastic resin material, for example, and can be knitted or woven. Preferably, the nonwoven fabric can be formed using a known method such as a spun bond method or a melt blown method. When the melt blown resin body 5 is used, a melt blower device may be directly provided instead of the drum 32.
[0018]
A device shown in FIG. 2 is provided behind the laminated body supply unit 11. The integration unit 41 needle punches the laminated body 7 so as to integrate the wooden bodies 3a, 3b and the resin body 5 so as not to slip at the respective interfaces. As shown in FIG. 2, the manufacturing apparatus 10 of the present embodiment includes an upper needle punch device 42 a and a lower needle punch device 42 b behind the stacked body supply unit 11.
[0019]
The upper needle punch device 42a and the lower needle punch device 42b can have the same configuration except that the needles are inserted from the upper side or the lower side of the laminated body 7, respectively. The upper needle punch device 42a is provided on an extension line in the transport direction of the conveyor 91a. The upper needle punching device 42a includes feed rollers 44 and 45 provided at the front end and the rear end, a holding portion 47 provided between the feed rollers 44 and 45, and a punch portion 49a provided above the holding portion 47. I have.
[0020]
The feed rollers 44 and 45 include a pair of rollers in contact with the upper surface and the lower surface of the laminated body 7, and feed the laminated body 7 at a predetermined speed. The holding portion 47 includes a mesh plate forming a pair that holds the upper surface and the lower surface of the laminated body 7 in contact with each other. The punch portion 49 a includes a driving unit 51 that can reciprocate in the vertical direction and a plurality of needles 53. By reciprocating the needle 53 at a constant speed, the needle 53 is uniformly punched to the laminated body 7 conveyed at a constant speed.
[0021]
The lower needle punch device 42a is provided behind a conveyor 93 provided behind the upper needle punch device 42a. The lower needle punch device 42b has the same configuration as the upper needle punch device 42a except that the punch portion 49b is positioned below the holding portion 47.
[0022]
A binder supply unit 61 is provided behind the integrated unit 41. The binder supply unit 61 is a part that supplies a binder resin to the wooden body 3b, and in this embodiment, is a roll coater that applies a roller to the upper wooden body 3b. The binder supply unit 61 is provided on a conveyor 94 that extends from the rear of the integrated unit 41. The binder supply unit 61 includes a binder resin supply tank 63 prepared as a fluid, and an application roller 66 that applies a certain amount of the binder resin. The application roller 66 uniformly attaches the binder resin supplied from the supply tank 63 to the roller surface and rotates at a constant speed, thereby contacting the upper surface of the laminate 7 and applying the binder resin to the wooden body 3b. To do.
[0023]
The binder resin is prepared into a fluid by a liquid medium. As the binder resin, a thermoplastic resin such as polyolefin, polyester, or polyacrylic ester, or a thermosetting resin that is used as an adhesive material such as a phenol resin or polyurethane can be used. Preferred are thermoplastic resins such as polyolefin and polyester. In addition, when a thermoplastic resin having good biodegradability such as polylactic acid, polylactic acid ester or esterified cellulose is used, a biodegradable molded article can be produced by combination with a woody material, which is preferable.
[0024]
Here, if the binder resin and the binding resin of the resin body 5 are the same resin, they can be combined well because they are easy to get used to each other. Further, the number of constituent materials in the woody molded body can be reduced, which is preferable. In particular, it is preferable that the binder resin and the resin for binding the resin body 5 are the same biodegradable resin because a wood molded body with a more uniform biodegradation can be obtained throughout.
Moreover, it is preferable to adjust the amount of the binder resin and the resin for binding the resin body 5 in relation to the weight of the wood bodies 3a and 3b. The abundance ratio of the binder resin and the resin body 5 in the molded body is not particularly limited, and may be any amount exceeding 0% and less than 100%. Preferably, when the sum of the binder resin and the binding resin with respect to the wood bodies 3a and 3b is 70:30 to 30:70, the finely divided wood materials of the wood bodies 3a and 3b can be favorably bound to each other. And can be molded well. More preferably, the ratio is 70:30 to 50:50. In particular, when it is 70:30, the wood molded body 1 in which the wood materials are well bonded is obtained by using less binder resin and binding resin. be able to. Moreover, the ratio of the resin for binding of the resin body 5 to the binder resin is not particularly limited, but the binder resin is preferably more. Thereby, resin can be favorably disperse | distributed to the wooden bodies 3a and 3b. For example, the binding resin and the binder resin of the resin body 5 are preferably in a weight ratio of 1: 2 to 1: 5, and when 1: 2, the resin distribution in the woody molded body 1 is more uniform. This is preferable.
[0025]
The liquid medium for preparing the binder resin into a fluid is various organic solvents, water, or a mixture thereof. Preferably, water is preferable because it can reduce deterioration of the environment in which the binder resin is used, in particular, the heating process in which the solvent evaporates and the drying process.
The fluid is a dispersion such as a dispersion or an emulsion in addition to the solution. For example, an emulsion binder resin can be obtained by emulsion polymerization of polylactic acid or acrylic acid ester in the production stage. Needless to say, a dispersion may be prepared using a surfactant or the like after the resin production.
[0026]
A device shown in FIG. 3 is provided behind the binder supply unit 61. The molding unit 71 is a device that molds the laminated body 7 by heat and pressure, and the device of this embodiment includes a heat and pressure unit 75 and a cooling unit 78.
The forming unit 71 includes a lower conveyor 72 that contacts the lower surface of the stacked body 7 and transports the stacked body 7, and an upper conveyor 73 that contacts the upper surface of the stacked body 7 and transports the stacked body 7. The heating and pressing unit 75 and the cooling unit 78 are provided so as to act on the stacked body 7 via the conveyor belts of the lower conveyor 72 and the upper conveyor 73.
[0027]
The heating and pressing unit 75 includes a pair of flat press plates. The press plate can be heated to a predetermined temperature by a heating means (not shown).
The cooling unit 78 cools and solidifies the binder resin and the binding resin in the woody molded body 1 molded to a predetermined thickness by the heating and pressing unit 75. The cooling unit 78 includes a plurality of pairs of cooling rollers 79 and 80 arranged behind the heating and pressing unit 75. As shown in FIG. 3, the front cooling roller 79 is a roller through which cooling water passes, and the rear cooling roller 80 has a cooler 81 on the side opposite to the side in contact with the laminate 7. It is a roller provided.
[0028]
Next, a method for manufacturing a wood molded body using the manufacturing apparatus 10 will be described.
First, a lump of kenaf fiber material processed into a fiber shape is put into the hoppers 14 of the wood body supply units 12a and 12b, and a roll of the belt-like resin body 5 is set on the drum 32 of the resin body supply unit 31. In the present embodiment, the resin body 5 is a polylactic acid web formed in a continuous band shape by a spunbond method. Moreover, this resin body 5 is 15 g / m, for example. ² ~ 300g / m ² Is preferred.
[0029]
Thereafter, the manufacturing apparatus 10 is operated. In the laminated body supply part 11, the laminated body formation process in this specification is performed. The woody body supply unit 12a sends a predetermined amount of fiber material backward from the hopper 14, opens the fiber material with the air lay 16, and deposits it on the conveyor 91a with the blower 19. The basis weight and thickness of the fiber material deposited on the roller 17 are adjusted to obtain a web. The web is the woody body 3a of the present specification. In this embodiment, for example, 300 g / m ² ~ 3000g / m ² It is preferable that the weight per unit area is good because a wood molded article can be produced satisfactorily.
[0030]
The resin body 5 is supplied from the resin body supply unit 31 to the upper surface of the wooden body 3a on the conveyor 91a at the same speed as the conveying speed of the conveyor 91a. Further, the wood body 3b created by the wood body supply unit 12b is supplied upside down on the resin body 5 by the same method as that of the wood body 3a, so that the laminated body 7 is obtained. When the wooden body 3b is turned upside down, the distribution of the wooden material from the surface side toward the inside becomes vertically symmetric. That is, there are many large fibers on the surface side and many small fibers on the inside. FIG. 4 is a cross-sectional view of the laminate 7.
[0031]
The laminated body 7 formed on the conveyor 91a is conveyed to the integrated part 41. The integration unit 41 performs an integration process by needle punching. The upper needle punching device 42a performs needle punching downward from the upper surface of the laminated body 7 and the lower needle punching device 42b upward from the lower surface of the laminated body. It can be intertwined more symmetrically. In the integration step, the wood bodies 3a and 3b and the fiber material in the resin body 5 are entangled and integrated. Since the laminated body 7 which passed through the integration process is reduced in volume and harder, the handling property is improved. For example, when the laminated body 7 in the web state prior to the integration step has a thickness of 200 to 300 mm, it can be formed to a thickness of 10 to 40 mm by the integration step described above. Further, it is difficult for the wood body 3a or the wood body 3b and the resin body 5 to slip, and misalignment is unlikely to occur at the time of conveyance or in a molding process described later.
[0032]
The binder supply part 61 performs the binder supply process which supplies a binder to the wooden body 3b. The binder supply unit 61 applies a binder resin to the upper surface of the laminated body 7 on the conveyor 94, that is, the wooden body 3b. For example, in this embodiment, it is possible to use a dispersion in which the binder resin is the same polylactic acid as the binding resin and the liquid medium is water, and specifically, a dispersion containing 40% solid content (polylactic acid). Can be used. Although the supply amount of the binder resin is not particularly limited, for example, it is preferable to supply the binder resin so that the polylactic acid is 25% with respect to the weight of the wooden bodies 3a and 3b. The distribution state of the binder resin (dispersion) at this time is shown in FIG.
[0033]
In the molding unit 71, the molding unit 71 performs a process of molding the laminated body 7 supplied with the binder resin by heating and pressing. First, the laminate 7 is pressed simultaneously with heating by the heating and pressing unit 75. The press has such a size that the laminated body 7 has a predetermined thickness. The heating is performed up to a temperature at which polylactic acid is softened and the wood materials in the wood bodies 3a and 3b can be bonded. In the present embodiment in which the wooden bodies 3a and 3b are made of kenaf fiber material and the binder resin and the resin body 5 are made of polylactic acid, for example, the temperature is 240 ° C. and the pressure is 150 kg / m. ² By holding for 3 minutes, the board can be formed into a desired shape.
[0034]
The movement of the laminate 7 and the binder resin 9 during molding will be described with reference to FIGS. When pressurization and heating are performed at the same time, the laminate 7 is compressed to a predetermined thickness before heat sufficiently penetrates into the laminate 7. The state at this time is shown in FIG. The binder resin 9 (dispersion) moves to the lower part of the laminated body 7 by the pressure and gravity accompanying pressurization. In particular, since the resin body 5 is made of a fiber material, the resin body 5 is distributed favorably from the upper wooden body 3b to the lower wooden body 3a. In this step, the binder resin 9 moves from the upper part to the middle, so that the binder resin becomes familiar with the entire laminate 7.
[0035]
Further, when the pressure heating is continued, the heat sufficiently penetrates into the laminated body 7, and water as a liquid medium of the binder resin 9 evaporates as shown in FIG. Evaporation occurs violently on both the upper and lower surfaces of the laminate 7 that is heated more quickly, so that water (water vapor) flows from the inside to the upper and lower surfaces in the wooden bodies 3a and 3b. As the water flows, the binder resin 9 also moves on both the upper and lower surfaces, and the concentration distribution of the binder resin 9 increases from the inside toward the upper and lower surfaces. On the other hand, the resin body 5 is also softened by heat permeating inside. The softened resin body 5 bonds the wooden bodies 3a and 3b to each other and the wooden materials in the wooden bodies 3a and 3b. This state is shown in FIG. The wooden bodies 3a and 3b are bonded together by the resin body 5, and the wooden material inside the wooden bodies 3a and 3b is mainly due to the resin for binding the resin body 5, and the wooden materials on the surface side of the wooden bodies 3a and 3b are: Bonded by the binder resin 9.
[0036]
The laminated body 7 molded by the heating and pressurizing unit 75 is sequentially cooled by the cooling unit 78 to solidify the binder resin and the resin body 5 to stabilize the shape and to obtain a wood molded body having a predetermined thickness. Can do.
As for the obtained wooden molded object 1, the wooden material is couple | bonded favorably by the resin for binder or binder resin in the whole. For this reason, each part of the wooden molded body 1 has a good strength, and in particular, there are few easily peelable portions, and the peel strength is good. In the molding part 71, the laminated body 7 is molded under a condition looser than the above-mentioned conditions, that is, with a smaller pressure, so that the resulting wooden molded body is again heated and pressure-molded to obtain various shapes such as a drawn shape. It is also possible to shape | mold into a molded object provided with.
[0037]
In addition, this invention is not limited to the said manufacturing method and apparatus.
For example, the supply of the binder resin is not limited to the application roller, and spraying, dipping, or the like may be used. Further, the supply of the binder resin is not limited to one side, and may be supplied to both sides. Of course, in the binder resin supply step, the binder resin may be supplied by a method in which the binder resin penetrates into the resin body. For example, after the laminated body forming step, the whole laminated body may be impregnated with a binder resin.
Moreover, a binder resin may be supplied to the woody body before forming in a laminated body, and an integration process may be performed after that. The heating and pressurization may be a hot press, a double belt press provided with a plurality of pairs of pressing rollers, or a combination of a heating device such as a heater and a cold press.
Moreover, in this manufacturing method, although the continuous type process was demonstrated, of course, the laminated body obtained by the process in the middle may be preserve | saved suitably, and subsequent processes may be performed at a different time.
Further, the number of wooden objects is not limited to two, and three or more may be provided. The resin body is preferably provided between the wooden bodies, but may be provided only in the center.
Of course, the wooden molded body may be provided with other members such as a skin material in a laminated form on the surface of the wooden body. In this case, it can be laminated and integrated by pressing together with the wooden body and the resin body in the molding step.
[0038]
【The invention's effect】
According to the present invention, by providing a method for producing a wooden molded body having a more uniform binder resin distribution, it is possible to obtain a wooden molded body in which the wooden materials are well bonded from the surface to the inside.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a laminate forming portion of an apparatus capable of carrying out a method for producing a wooden molded body according to the present invention.
FIG. 2 is a schematic diagram showing an integrated unit and a binder supply unit of an apparatus that can carry out the method for producing a wooden molded body according to the present invention.
FIG. 3 is a schematic view showing a molding part of an apparatus that can carry out the method for producing a wooden molded body according to the present invention.
FIG. 4 is a cross-sectional view of a laminate according to an embodiment.
FIG. 5 is a cross-sectional view showing a state in which the first bonding resin is present in the laminate before the molding step of the embodiment.
FIG. 6 is a cross-sectional view showing a state in which the first bonding resin is present in the laminate pressed in the molding step of the embodiment.
FIG. 7 is a cross-sectional view showing a state in which a first binding resin is present in a laminate when heat penetrates in a pressurized state in the molding step of the embodiment.
FIG. 8 is a cross-sectional view showing a state in which the first binding resin is present in the laminate after the molding step of the embodiment.
[Explanation of symbols]
1 Woody compact
3a, 3b wood
5 Resin body
7 Laminate
9 Binder resin
10 Manufacturing equipment
11 Laminate Supply Unit
12a, 12b Wood body supply section
14 Hopper
16 Airley
17 Laura
19 Blower
21 Conveyor belt
23 Suction unit
25 Guide
31 Resin body supply section
32 drums
41 Integrated part
42a Upper needle punch device
42b Lower needle punch device
44, 45 Feed roller
47 Holding part
49a, 49b Punch part
51 Driving means
53 Needle
61 Binder supply section
63 Supply tank
66 Application roller
71 Molding part
72 Lower conveyor
73 Upper Conveyor
75 Heating and pressing part
78 Cooling section
79, 80 Cooling roller
81 cooler
91a, 91b, 93, 94 conveyor

Claims (2)

A method for producing a wooden molded body,
A laminated body is formed by providing a resin body made of a fiber material including a binding resin capable of binding the wood material between a plurality of wood bodies formed by aggregating the subdivided fibrous wood materials. Process,
Supplying a binder resin imparted with fluidity by a liquid medium to at least the wooden body;
Forming the laminate by heating and pressing; and
Prior to the heating and pressurizing step, an integration step in which the fiber material of the wooden body and the fiber material of the resin body are entangled in the laminate,
A method for producing a wooden molded body. The method for producing a woody molded body according to claim 1, wherein the same thermoplastic resin is used for the resin for binding the resin body and the binder resin.

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