KR20180109558A - Partition panel, method and system manufacturing the same - Google Patents

Abstract

Disclosed are a wall panel for construction and a manufacturing method thereof. The wall panel for construction according to one embodiment of the present invention comprises: an internal board assembly including a honeycomb board formed by flame retardant process of paper, and a urethane board formed by flame retardant process of a urethane material, and provided to have multiple stages by alternatively arranging the honeycomb board and the urethane board; and first and second external finishing materials coupled to both surfaces of the internal board assembly, and made of a material including at least one raw material between recycled polyurethane and kenaf.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building wall,

The present invention relates to a building wall and a method of manufacturing the same, and more particularly, to a building wall and a method of manufacturing the same which can provide various functions such as a flame retarding function, a sound absorbing function or a heat insulating function, The present invention also relates to a building wall and a method of manufacturing the same, which can reduce the occurrence of loss during the transportation of goods and can be easily handled and easy to install because of its light weight.

Generally, when constructing non-proof inner and outer walls of various buildings such as single-family houses, communal houses, office buildings, shopping malls, etc., a wet mooring method in which bricks or blocks are piled up and then finished with cement mortar is used.

However, the above-described wet coarse process has a disadvantage in that a considerable cost is incurred for reinforcing the structural strength required not only by the air but also by the heavy weight.

In addition, the above-mentioned wet masonry method is difficult to repair or replace due to aged equipment such as electricity, water supply / drainage, gas, etc., and it is difficult to accommodate the change of the resident's structural change request.

In order to overcome these shortcomings, we have proposed a dry method to reduce the weight due to the high rise of the building, to easily change the space partition, to simplify the field work process, to be free from external climates, Has been introduced.

On the other hand, when the dry space method is constructed in a typical manner in which all the fabrication and installation are performed at the construction site, the inner space is largely constructed as a single body, and the space is divided into an appropriate space as needed, Is widely used.

However, in the case of such a gypsum board or sandwich panel, the flame retardant function, the sound absorbing function or the heat insulating function are deteriorated due to the structural limitations, and the strength is so weak that the wall including the partition is limited to form a wall, Considering the fact that the loss is large and the construction is not easy, there is a need for a new concept building wall that is not known before.

Korea Patent Office Application No. 10-2015-0017209 Korea Patent Office Application No. 20-2006-0000621

Accordingly, it is an object of the present invention to provide various functions such as a flame retarding function, a sound absorbing function or a heat insulating function, and it is possible to utilize it as an interior material, a partition or a wall of a building due to its strong strength, Accordingly, it is an object of the present invention to provide a building wall and a method of manufacturing the same, which can reduce the occurrence of loss during transportation of a logistics and can be easily handled.

According to one aspect of the present invention, there is provided a honeycomb structure including a honeycomb board formed by flame-retarding treatment of paper and a urethane board formed by a flame-retardant treatment of a urethane material, wherein one of the honeycomb board and the urethane board is different An internal board assembly disposed between the boards and provided in multiple layers; And first and second exterior finishes made of a material including at least one of recycled polyurethane and kenaf, which are bonded to both surfaces of the inner board assembly. have.

Wherein the internal board assembly comprises: the honeycomb board; A first urethane board disposed on one side of the honeycomb board and bonded to the honeycomb board; And a second urethane board disposed on the other surface of the honeycomb board and bonded to the honeycomb board.

The first and second exterior finishers may be disposed on and bonded to the outer surfaces of the first and second urethane boards, respectively.

The honeycomb board includes first and second sound absorbing plates arranged in parallel and spaced apart from each other; And a plurality of sound absorbing sound spaces for connecting the first and second sound absorbing plates to allow sound absorption or sound insulation, and a sound absorbing sound connection portion formed to be larger than the thickness of the first and second sound absorbing plates have.

Wherein at least one of the first and second external finishes can be produced by blending the recycled polyurethane as the main raw material and the kenaf and the polypropylene as the auxiliary raw materials at a predetermined blending ratio, and the recycled polyurethane 35 to 45 weight % Of the kenaf, 20 to 30% by weight of the kenaf, and 15 to 25% by weight of the polypropylene.

At least one of the first and second outer finishes may be prepared by mixing the kenaf as the main raw material, low melting fiber (LM) and polyethylene terephthalate (PET) as auxiliary raw materials at a predetermined blending ratio And may have a weight ratio of 40 to 70% by weight of the kenaf, 30 to 50% by weight of the low melting point fiber (LM), and 10 to 30% by weight of the polyethylene terephthalate (PET).

Wherein at least one of the first and second exterior finishes is a flame-retardant finish material; And a flame retardant reinforcement disposed on both surfaces of the flame-retardant finishing material main body for reinforcement of the flame-retardant finishing material main body, the flame-retarded reinforcement being flame-retarded separately from the flame-retardant finishing material main body.

The impregnated amount of the flame retardant material impregnated in the flame-retardant finishing material main body is 2 to 3 times the weight of the flame-retardant finishing material main body, and the impregnated amount of the flame-retardant material impregnated in the flame retardant material may be 2 to 3 times the weight of the flame-

The urethane board may be a water-blown PIR (polyisocyanurate) board.

The honeycomb board may further include a connection member that is fitted to the groove of the honeycomb board for connection of the honeycomb boards disposed adjacent to each other.

According to another aspect of the present invention, there is provided a honeycomb structure comprising: a honeycomb board formed by flame-retarding treatment of paper; and a urethane board formed by a flame-retardant treatment of a urethane material, wherein one of the honeycomb board and the urethane board is different An inner board assembly manufacturing step of manufacturing an inner board assembly disposed between the boards and provided in multiple layers; An outer finishing material manufacturing step of manufacturing an outer finishing material made of a material including at least one of recycled polyurethane and kenaf, which is bonded to both surfaces of the inner board assembly; And an inner board assembly and an outer finishing material joining the outer finishing material to both surfaces of the inner board assembly, respectively.

Wherein the internal board assembly manufacturing step includes: a honeycomb board disposing step of disposing the honeycomb board; A urethane board disposing step of disposing the urethane board on both sides of the honeycomb board with the honeycomb board therebetween; And a board bonding step of bonding the honeycomb board and the urethane board.

The external finishing material manufacturing step may include a raw material mixing step of blending predetermined raw materials at a predetermined blending ratio; A raw material processing step in which the compounded raw materials are assembled and processed into semi-finished products having a uniform thickness; And a flame retardant impregnation step of impregnating the semi-finished product with the flame retardant.

The outer finishing material manufacturing step may include a first cutting step of cutting the semi-finished product to a size suitable for impregnation before the flame retardant impregnation step is performed; And a drying step of drying the impregnated semi-finished product after the flame retardant impregnation step is performed.

The drying step may be a microwave drying step in which a drying action by microwaves proceeds.

The step of manufacturing the external finishing material may further include a step of attaching the flame-retarded reinforcement paper to the both surfaces of the dried semi-finished product after the drying step.

The step of manufacturing the external finishing material may further include a pressing step of pressing the semi-finished product having the flame retardant reinforcement paper on both sides thereof after the step of adhering the flame retardant reinforcement paper, thereby integrating the flame retardant reinforcement paper.

Wherein the pressing step comprises thermocompression bonding the semi-finished product to which the flame retardant is attached on both sides; And a cold pressing step of cold compressing the thermo-pressed semi-finished product.

The step of manufacturing the external finishing material may further include a secondary cutting step of cutting a unit size for release of the product after the pressing step.

According to the present invention, it is possible to provide various functions such as a flame retarding function, a sound absorbing function or a heat insulating function, and it is possible to utilize it as an interior material, a partition or a wall of a building due to its strong strength. it is possible not only to reduce the occurrence of loss but also to facilitate the handling and easy construction.

1A is an image of a building wall according to an embodiment of the present invention.
1B is a perspective view showing an image of FIG. 1A.
1C is a partially cutaway perspective view of FIG. 1B.
1D is a cross-sectional view of FIG.
FIG. 1E is an exploded view of FIG. 1D.
1F is a view for explaining a connection structure of a building wall.
2 is a schematic block diagram of a building wall building system for manufacturing a building wall according to an embodiment of the present invention.
3 is a control block diagram of an external finishing material manufacturing apparatus.
4 is a process configuration diagram of an external finishing material manufacturing apparatus.
5 is an enlarged view of the front process of Fig.
6 is an enlarged view of the flame retardant impregnation unit.
7 is an enlarged structural view of the raw material mixing unit.
Fig. 8 is a view of the state in which the shutter is opened in Fig.
9 is an enlarged view of the drying unit.
10 is an enlarged view of the rear process of Fig.
11 is a schematic flowchart of a method for manufacturing a building wall according to an embodiment of the present invention.
12 is a flow chart for the step of manufacturing an external finishing material.
13 and 14 are modifications of the building wall, respectively.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1B is a perspective view showing an image of FIG. 1A, FIG. 1C is a partially cutaway perspective view of FIG. 1B, FIG. 1D is a sectional view of FIG. 1B, FIG. 1E is an exploded view of FIG. 1D, and FIG. 1F is a view for explaining a connection structure of a building wall.

Referring to these drawings, the building wall 1 according to an embodiment of the present invention can be formed as a block-like structure as the image of FIG. 1A, and can be used for interior finishing of a building, Can be used as a partition or a wall as a means for dividing a plurality of unit spaces into a plurality of unit spaces. In particular, the building wall 1 according to an embodiment of the present invention can be used, for example, to divide one large indoor space into unit spaces such as a work room, a meeting room, a rest room, and the like.

The building wall 1 according to an embodiment of the present invention can provide various functions such as a flame retarding function, a sound absorbing function or a heat insulating function due to the following features, and it is also possible to provide various functions such as a lining, a partition or a wall . In addition, since the building wall 1 according to the embodiment of the present invention is light in weight, which is lighter than a conventional gypsum board or sandwich panel, it is possible not only to reduce loss during transportation of the logistics, .

In other words, since the building wall 1 according to the present embodiment has an efficient structure unlike the conventional gypsum board or sandwich panel, it can provide a smoke absorbing effect as well as a flame retardant or a heat insulating function. In addition, since the building wall 1 according to the present embodiment is completed as a wall only by connecting in the lateral direction, the convenience of construction can be achieved. Particularly, it is light, so it can provide many advantages in logistics transportation.

As shown in Figs. 1A to 1F, the building wall 1 according to one embodiment of the present invention provides many advantages as described above, including an inner board assembly 6 and an inner board assembly 6 on both surfaces of the inner board assembly 6 And first and second exterior finishes 10 made of a material including at least one of recycled polyurethane and kenaf. As will be described later, the first and second external finishing materials 10 are different in position only, but have the same structure. Therefore, the first and second external finishing materials 10 are all given the same reference numerals.

The inner board assembly 6 is a portion disposed between the first and second outer covering members 10. The inner board assembly 6 includes a honeycomb board 2 formed by flame-retarding treatment of paper, a first urethane board 4 disposed on one side of the honeycomb board 2 and bonded to the honeycomb board 2 And a second urethane board 5 disposed on the other surface of the honeycomb board 2 and adhered to the honeycomb board 2. [ The first urethane board 4 and the second urethane board 5 are denoted by the same reference numerals, but they may all be polyurethane foam boards formed by flame-retardant treatment of a urethane material. In the case of the present embodiment, a multi-layer structure in which a honeycomb board 2 formed by flame-retarding treatment of paper is disposed between a first urethane board 4 and a second urethane board 5 formed by a flame- The inner board assembly 6 of FIG.

The honeycomb board 2, that is, the honeycomb board 2 formed by the flame-retarding treatment of paper is provided so that sound absorption or sound insulation can be performed mainly with respect to sound. Such a honeycomb board 2 can be formed by attaching a paper sheet to both sides of a honeycomb surface of a paper material in which honeycombs are continuously formed in four directions, and a flame retardant and a flame retardant are spray- It can be manufactured in a flame retardant and flame retarded state.

The honeycomb board 2 includes a first sound absorbing plate 2a which is in contact with and joined to the first external covering member 10, a second sound absorbing plate 2b which is in contact with the second external covering member 10, Sound-absorbing connection wall 2c having a plurality of sound-absorbing spaces (not shown) for connecting the first and second sound-absorbing plates 2a and 2b so that sound-absorbing or sound-absorbing can be performed.

Since a plurality of sound absorbing sound spaces (not shown) are formed in the sound absorbing sound connecting wall 2c, the sound absorbing effect can be provided due to this structure. In this embodiment, the sound absorbing connection wall 2c may be formed larger than the thickness of the first and second sound absorbing plates 2a and 2b.

The first and second urethane boards (4, 5) are made of a urethane material by flame-retarding treatment. The first and second urethane boards 4 and 5 are eco-friendly and flame-retarded by water-blown urethane, and are adhered to both sides of the honeycomb board 2 with a flame retardant adhesive to provide heat insulation and flame retardant properties. In the present embodiment, the thickness of each of the first and second urethane boards 4 and 5 is made thicker than the thickness of the honeycomb board 2.

The first and second urethane boards 4 and 5 may be manufactured as separate boards and bonded to both sides of the honeycomb board 2 or may be bonded to both sides of the honeycomb board 2, The urethane foam may be produced by foaming the urethane foam in a state where the finishing material 10 is spaced apart by a predetermined distance and then closed at four sides. Thus, when the urethane foam is foamed, a flame retardant may be added to produce a grade suitable.

As described above, in the case of manufacturing the internal board assembly 6, the honeycomb board 2, which has been subjected to the flame-retarding and flame-resistant treatment, replaces the center portion of the first and second urethane boards 4 and 5, The first and second urethane boards 4 and 5 can not be made indefinitely thick while maintaining a balance in terms of cost, strength, weight, workability, and the like. .

First, the honeycomb board 2 is adhered to both sides of the first and second urethane boards 4 and 5 so that the first and second urethane boards 4 and 5 are molded, The honeycomb board 2 is attached to the honeycomb board 2 formed continuously in four directions, and the structure is sufficiently reinforced so that it can withstand external impacts.

In addition, by replacing a part of the first and second urethane boards 4 and 5 with the honeycomb board 2, the production cost can be reduced and the weight can be further reduced by the relatively low cost honeycomb board 2, It becomes advantageous in construction.

In addition, by replacing the center portion of the first and second urethane boards 4 and 5 with the honeycomb board 2, when the heat, vibration and noise generated from one side are transmitted to the other side, The first and second urethane boards 4 and 5 are clogged on both sides and can be significantly reduced while passing through the air layer which is surely formed, thereby improving the heat insulation and sound insulation characteristics on the other side.

The first and second external finishing materials 10 are the finishing materials to be bonded to both surfaces of the honeycomb board 2 for reinforcement of the honeycomb board 2 as described above. The first and second outer covering materials 10 may be manufactured by the following method.

For example, the first and second external finishing materials 10 can be produced by combining recycled polyurethane as a main raw material and kenaf and polypropylene as auxiliary raw materials at a predetermined blending ratio. In this case, the weight ratio of recycled polyurethane to 35 to 45% by weight, kenaf 20 to 30% by weight, and polypropylene 15 to 25% by weight may be used.

In addition to this method, the first and second outer finishing materials 10 can be prepared by kneading a kenaf as a main raw material, a low melting fiber (LM) and a polyethylene terephthalate (PET) as auxiliary raw materials at a predetermined blending ratio Or by blending them. In this case, the weight ratio of the kenaf 40 to 70% by weight, the low melting point fiber (LM) 30 to 50% by weight, and the polyethylene terephthalate (PET) 10 to 30% by weight.

As a result, the first and second external finishing materials 10 can be manufactured at a blending ratio with the raw materials of the above two methods. The first and second external finishing materials 10 thus manufactured are disposed on both sides of the internal board assembly 6 Lt; / RTI >

At this time, the first and second outer covering materials 10 need not always be the same. For example, the first external finishing material 10 may be made of recycled polyurethane as the main material, and the second external finishing material 10 may be made of kenaf as the main material. In the case of the present embodiment, the external finishing material 10 of the latter type is applied and is bonded to the both surfaces of the internal board assembly 6.

As shown in FIG. 1E, the external finishing material 10 includes a flame-retardant finishing material main body 11 occupying most of the thickness, and a flame-retardant finishing material 10 disposed on both sides of the flame- And a plurality of flame retarded reinforcing papers 13 which are pressed together with the main body 11. [

On the other hand, the flame-retardant finishing main body 11, which occupies the majority of thickness, can be manufactured by adding a flame-retardant function while using a constant raw material, particularly kenaf. Can be manufactured by pressing. The flame retardant reinforcement 13 also has a flame retarding function.

Since the flame retardant main body 11 is also subjected to the flame-retarding treatment and the flame-retardant reinforcement 13 constituting the shell of the flame-retardant finishing main body 11 is also subjected to flame-retardant treatment, the external finishing material 10 according to the present embodiment has a double- . Therefore, it can provide a strong effect to the fire. In addition, due to its structural features, the effect of sound absorption is excellent.

As described above, the flame-retardant finishing main body 11 of the present embodiment is made of the kenaf as the main raw material, the low melting point fiber (LM) as the auxiliary raw material and the polyethylene terephthalate PET (polyethylene terephthalate) as a raw material, and is made into a flat plate, but is subjected to flame retarding treatment.

Here, the low melting point fiber (LM) has a melting characteristic at a low temperature of 100 to 200 degrees, unlike the ordinary polyester fiber which melts at 265 degrees or more. Therefore, it is eco-friendly fiber which is used as an adhesive for sanitary articles such as automobile trunks and ceilings, furniture such as mattresses and sofas, diapers and sanitary napkins.

Polyethylene terephthalate (PET) is a typical synthetic fiber material and its application is expanding to non-textile fields such as film and bottles. Polyethylene terephthalate (PET) is a melt-spinning material that makes polyester fibers for clothes, as well as bottles and films.

On the other hand, the flame-retardant finishing main body 11 is manufactured using such raw materials, and these raw materials can be blended at a predetermined weight ratio. The weight ratio of kenaf 40 to 70% by weight, the low melting point fibers (LM) 30 to 50% by weight, and polyethylene terephthalate (PET) 10 to 30% by weight.

At this time, when the flame-retardant finishing main body 11 is manufactured, the content of kenaf is the largest and the content of polyethylene terephthalate (PET) is the smallest. Further, the flame-retardant finishing main body 11 can be made thicker than the flame-retarded reinforcement paper 13.

Particularly, in the case of this embodiment, kenaf is used as a main component, and the kenaf is a fiber, that is, an eco-friendly material, and has pores in the stem. Therefore, when the flame-retardant finishing main body 11 is manufactured using such a kenaf, the kenaf can absorb the flame-retardant material, which is advantageous in providing a flame-retardant function. Particularly, since the pores in the kenaf provide a sound absorbing function and a heat insulating function, the external finishing material 10 according to one embodiment of the present invention can provide excellent effects even in adiabatic property, particularly, in a pickling sound.

When the kenaf is contained in an amount of less than 40% by weight, the kenaf may be contained in an amount of 40 to 70% by weight. When the kenaf is contained in an amount of less than 40% by weight, (LM) and polyethylene terephthalate (PET) are reduced, resulting in poor workability and low strength. Accordingly, the kenaf is preferably contained in an amount of 40 to 70% by weight as a raw material.

Likewise, the low melting point fibers (LM) and the polyethylene terephthalate (PET) each contain 30 to 50% by weight and 10 to 30% by weight, respectively, except for the content of the kenaf, have. When the low melting point fiber (LM) is less than or equal to 30 to 50 wt% and the polyethylene terephthalate (PET) is less than or equal to 10 to 30 wt%, the workability is remarkably decreased and the strength may be weakened.

The flame retardant reinforcement sheet 13 may also be provided after the flame-retardant treatment with the same raw material as that of the flame-retardant finishing main body 11. [ However, considering that the flame retardant reinforcing paper 13 is thinner than the flame-retardant finishing main body 11, the flame-retarded reinforcing paper 13 may be made using only a kenaf.

The building wall 1 as described above can be used in connection with the construction as shown in FIG. At this time, the connection member 8 having the same shape as the groove portion 2c is inserted into the groove portion 2c formed in the honeycomb board 2 of the building wall 1 disposed adjacent to each other, 1) in the lateral direction.

Particularly, the connection member 8 is formed to have the same thickness as the groove portion 2c of the honeycomb board 2, a width wider than the depth of the groove portion 2c, and a height equal to the side surface, So that it can be made more robust and easy. When the building wall 1 is laterally connected by using the connecting member 8 as shown in FIG. 1F, the ease of construction can be greatly improved.

2 is a schematic block diagram of a building wall manufacturing system for manufacturing a building wall according to an embodiment of the present invention.

Referring to this figure, a building wall manufacturing system for manufacturing a building wall 1 (see Fig. 1A) according to an embodiment of the present invention includes an inner board assembly manufacturing apparatus 50 for manufacturing an inner board assembly 6 An outer finishing material manufacturing apparatus 60 for manufacturing first and second outer finishing materials 10 to be bonded to both sides of the inner board assembly 6 and an outer finishing material manufacturing apparatus 60 for manufacturing the inner board assembly 6, An inner board assembly and an outer finishing material coupling device 70 for coupling the first and second outer finishing materials 10 to both surfaces of the first and second outer finishing materials.

As a result, the inner board assembly 6 is manufactured by the inner board assembly manufacturing apparatus 50, the outer finishing material 10 can be manufactured by the external finishing material manufacturing apparatus 60, 6 and the exterior finishing material 10 can be made of a building wall 1 of the type as shown in FIG. 1A by inter-connecting with each other through an internal board assembly and an external finishing material joining device 70. The inner board assembly 6 and the outer finishing material 10 can be joined by the environmentally friendly adhesive in the inner board assembly and the outer finishing material joining device 70. [

Among these devices, an apparatus and a method for manufacturing the external finishing material 10 will be described in detail with reference to Figs. 3 to 12. Fig.

FIG. 3 is a control block diagram of the external finishing material manufacturing apparatus, FIG. 4 is a process configuration diagram of the external finishing material manufacturing apparatus, FIG. 5 is an enlarged front view of the flame retardant impregnation unit, 7 is an enlarged structural view of the raw material compounding unit, FIG. 8 is a view in which the shutter is opened in FIG. 7, FIG. 9 is an enlarged view of the drying unit, FIG. 10 is an enlarged rear view of FIG. Is a schematic flow chart of a method for manufacturing a building wall according to an embodiment of the present invention, and Fig. 12 is a flowchart for a step of manufacturing an exterior finishing material.

3 and 4, the external finishing material manufacturing apparatus 60, which can be applied to a building wall manufacturing system according to an embodiment of the present invention, includes a raw material mixing unit 110, The unit 120, the primary cutting unit 130, the flame retardant impregnation unit 140, the drying unit 150, the flame retardant attaching unit 160, the compression unit 170, and the secondary cutting unit 180 .

In other words, the raw material blending step (S110) by the raw material blending unit 110, the raw material processing step (S120) by the raw material processing unit 120, the primary cutting step (S130) by the primary cutting unit 130, The step S140 of impregnating the flame retardant by the flame retardant impregnation unit 140, the step of drying S150 by the drying unit 150, the step S160 of attaching the flame retardant reinforcement by the flame retardant reinforcing paper attaching unit 160, And the second cutting step S180 by the second cutting unit 180 are sequentially performed to form the outer finishing material 10 as shown in FIG. 1d, that is, the flame-retarding finishing material body 11 ) And the flame-retardant reinforcing paper (13).

Particularly, when such a stepwise process is controlled so as to form a continuous in-line by the controller 180 as shown in FIG. 3, it is possible to realize productivity improvement by automation.

Of course, for productivity, the raw material mixing unit 110, the raw material processing unit 120, the primary cutting unit 130, the flame retardant impregnation unit 140, the drying unit 150, the unit 160 with the flame- It is preferred that both the unit 170 and the secondary cutting unit 180 be automatically controlled, but only one or a few of these units may be controlled by the controller 180. Accordingly, all such matters are intended to be within the scope of the present invention.

3, the controller 190 includes a raw material mixing unit 110, a raw material processing unit 120, a primary cutting unit 130, a flame retardant impregnation unit 140 ), The drying unit 150, the flame retarding material attaching unit 160, the pressing unit 170, and the secondary cutting unit 180. This control can be an inline continuous control as described above, or it can be a local control of some units.

The controller 190 performing such a role may include a central processing unit 191 (CPU), a memory 192 (MEMORY), and a support circuit 193 (SUPPORT CIRCUIT).

In the present embodiment, the central processing unit 191 includes a raw material mixing unit 110, a raw material processing unit 120, a primary cutting unit 130, a flame retardant impregnation unit 140, a drying unit 150, May be one of a variety of computer processors that are industrially applicable to control the stepwise operation of the unit 160, the compression unit 170, and the secondary cutting unit 180.

The memory 192 (MEMORY) is connected to the central processing unit 191. The memory 192 is a computer-readable recording medium that may be installed locally or remotely and may be any of various types of storage devices such as, for example, random access memory (RAM), ROM, floppy disk, hard disk, May be at least one or more memories.

A support circuit 193 (SUPPORT CIRCUIT) is coupled with the central processing unit 191 to support the typical operation of the processor. Such a support circuit 193 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 190 includes a raw material mixing unit 110, a raw material processing unit 120, a primary cutting unit 130, a flame retardant impregnation unit 140, a drying unit 150, 160, the compression unit 170, and the secondary cutting unit 180. [0054] At this time, the controller 190 controls the raw material mixing unit 110, the raw material processing unit 120, the primary cutting unit 130, the flame retardant impregnation unit 140, the drying unit 150, A series of processes for continuously controlling or partially controlling the stepwise operation of the pressing unit 170, and the secondary cutting unit 180 may be stored in the memory 192. [ Typically, software routines may be stored in memory 192. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Hereinafter, a detailed configuration of the external finishing material manufacturing apparatus 60 will be described with reference to FIGS. 4 to 10. FIG.

First, the raw material blending unit 110 serves to blend the kenaf as the main raw material with the low melting point fibers (LM) and the polyethylene terephthalate (PET) as the auxiliary raw materials at a predetermined blending ratio. The compounding ratio of these raw materials is as described above.

4 to 8, the raw material compounding unit 110 includes a tank 111 for a compounding unit, an opening and closing shutter 112 that is openable and closable in the tank 111 for the compounding unit, And a raw material stirrer 116 for stirring the raw material to be fed into the tank 111 for the mixing unit.

The tank 111 for the mixing unit is a tubular or hopper-like structure, and is a place where the aforementioned raw materials are blended. A discharging unit 111a is provided at one side of the mixing unit tank 111 so that the materials that have been completely mixed therein can be discharged to the outside of the mixing unit tank 111. [ The discharging portion 111a is preferably provided below the mixing unit tank 111, but the scope of the present invention is not limited to the shape of the drawing.

The opening / closing shutter 112 is a structure rotatably disposed in the mixing unit tank 111, and opens and closes the inside of the mixing unit tank 111. That is, as shown in FIG. 7, the tank 111 for the mixing unit is shielded or the tank 111 for the mixing unit is opened as shown in FIG.

The shutter driving unit 113 is provided for driving the opening / closing shutter 112. That is, the shutter driving unit 113 is connected to the opening / closing shutter 112 and drives the opening / closing shutter 112.

An opening signal generator 114 is connected to the opening / closing shutter 112. The open signal generator 114 is connected to the opening / closing shutter 112 and serves to generate an opening signal of the opening / closing shutter 112. The open signal generator 114 may be set such that the opening / closing shutter 112 is opened through, for example, the operation time of the stirring motor 116a.

When the open signal generator 114 is applied as described above, the controller 190 of FIG. 3 can control the operation of the shutter drive unit 113 based on the signal of the open signal generator 114.

However, the opening signal generator 114 is not necessarily applied to the raw material compounding unit 110, and a load cell or the like may be applied instead of the open signal generator 114 so that the opening / closing shutter 112 is opened / It might be.

The raw material agitator 116 may be provided in the mixing unit tank 111 for smoothly mixing the raw materials to be fed into the mixing unit tank 111. That is, the raw material stirrer 116 is provided in the mixing unit tank 111 and serves to stir the raw material supplied into the mixing unit tank 111.

The raw material stirrer 116 includes a stirring motor 116a and a stirring shaft 116b connected to the stirring motor 116a and disposed in the mixing tank 111 for mixing unit and a stirring shaft 116b connected to the stirring shaft 116b, And a plurality of stirring vanes 116c for stirring the raw material in contact with the raw material when the stirring shaft 116b rotates. The plurality of stirring vanes 116c are disposed alternately on the stirring shaft 116b so that the efficiency of the stirring operation can be increased.

Accordingly, when the stirring motor 116a is operated and the stirring shaft 116b is rotated, a plurality of stirring vanes 116c connected to the stirring shaft 116b are rotated to dismantle the agglomerated raw materials or to stir the raw materials .

With the structure of the raw material compounding unit 110 as described above, the stirring process for the raw materials in the mixing unit tank 111 can proceed through the raw material stirrer 116 in the state where the opening / closing shutter 112 is closed as shown in FIG. When the predetermined agitation time is completed, the open signal generator 114 sends an open signal to the controller 190 so that the controller 190 can control the operation of the shutter drive 113 based on the signal of the open signal generator 114 have. 8, the opening / closing shutter 112 is opened, and the raw material, which has been mixed, can be discharged through the discharging portion 111a of the mixing unit tank 111.

Next, the raw material processing unit 120 is disposed behind the process of the raw material mixing unit 110, and serves to process the raw materials into a semi-finished product having a uniform thickness. In other words, in the case of the raw material compounding unit 110, since the raw materials are simply blended, the raw material processing unit 120 can be applied so that the blended raw materials can be formed into a structure having a constant thickness, that is,

As shown in FIGS. 4 and 5, the raw material processing unit 120 includes a plurality of raw materials, which are mixed and discharged from the discharge portion 110a of the raw material mixing unit 110, And may include first to third processing rollers 121 to 123.

At this time, a plurality of first to third processing rollers 121 to 123 are arranged one by one, but a pair of first to third processing rollers 121 to 123 are arranged in the direction from the raw material mixing unit 110 toward the primary cutting unit 130, 123 may be gradually narrowed. In other words, the interval between the pair of second processing rollers 122 is narrower than the interval between the pair of first processing rollers 121, and the interval between the pair of second processing rollers 122 is shorter than the interval between the pair of second processing rollers 121 The interval between the third processing rollers 123 is narrow.

Therefore, the raw materials which are merely mixed can be formed into a semi-finished product having a constant thickness passing between the first to third processing rollers 121 to 123 according to the interval difference. For reference, the first to third processing rollers 121 to 123 have been disclosed, but the number of the processing rollers 121 to 123 may be two or four or more, so that the scope of the present invention is not limited to the shape of the drawings.

Next, the primary cutting unit 130 is disposed in the entire process of the fl ame material impregnation unit 140, and cuts the semi-finished product formed by the raw material processing unit 120 into a size suitable for impregnation.

That is, when the raw material processing unit 120 is processed into a semi-finished product having a predetermined thickness, the processed semi-finished products may be continuously attached. In order to efficiently carry out the subsequent impregnating process or the like, Cut to size.

4 and 5, the primary cutting unit 130 includes a first cutter 131 for cutting the semi-finished product while being driven up / down, and a second cutter 131 connected to the first cutter 131 And a first cutter up / down driver 132 for driving the first cutter 131 up / down. Here, the first cutter up / down driving unit 132 may be a hydraulic, pneumatic, or pneumatic / hydraulic combined cylinder, but a combination of a motor and a ball screw may be used instead of the cylinder.

The roller type conveyor 135 is applied so that the semi-finished product can be cut well when the first cutter 131 is up / down by the first cutter up / down driving part 132. That is, in the case of this embodiment, the conveyor for conveying the semi-finished product at the lower portion of the first cutter 131 can be applied as a roller-type conveyor 135 for allowing the operation of the first cutter 131. Therefore, the cutting operation can proceed well without interference.

A plurality of guide rollers 136 for guiding the semi-finished products discharged through the raw material processing unit 120 to the roller type conveyor 135 may be provided around the roller type conveyor 135.

Next, the flame retardant impregnation unit 140 serves to impregnate the flame retardant with the semi-finished product cut to a size suitable for impregnation by the primary cutting unit 130 to have a flame retardant function.

4 and 5, the flame retardant impregnation unit 140 includes an impregnation unit table 141, a flame retardant impregnation tank 142 provided on the impregnation unit table 141 and filled with a flame retardant, A nonmoving force transferring unit 143 which is immersed in the flame retarding material impregnation tank 142 for transferring the semi-finished product to be flame-retarded, a rotatably disposed upper portion of the nonmotor power transferring unit 143, (Not shown).

A loading roller 145 and an unloading roller 146 are provided at the front end and the rear end of the nonmoving force transmitting portion 143, respectively. The loading roller 145 serves to supply and load the semi-finished product to be non-flammable to the non-powered conveyance unit 143, and the unloading roller 146 serves to take out the flame-retarded semi-finished product from the flame retardant impregnated tank 142. Both the loading roller 145 and the unloading roller 146 may be power rollers.

When the loading roller 145 is operated, the semi-finished product provided in the previous process can be loaded on the non-powered conveyance unit 143, and then the semi-finished product is conveyed while being kept immersed in the flame retardant by the action of the power transfer unit 143 do. In this process, the flame retardant may be impregnated into the semi-finished product. When the impregnation is completed, the unloaded product is taken out by the action of the unloading roller 146.

At this time, the impregnation amount of the flame-retardant material impregnated into the flame-retardant finishing material main body 11 may be 2 to 3 times as much as the weight of the flame- The impregnation amount of the flame retardant material impregnated in the flame retardant reinforcing material 13 may be 2 to 3 times as much as the weight of the flame retardant reinforcing material 13. If it is more than 3 times, the weight of the product is too heavy.

Next, the drying unit 150 is disposed behind the process of the flame retardant impregnation unit 140 and serves to dry the impregnated semi-finished product. That is, the drying unit 150 serves to dry the wet semi-finished product by the flame retardant.

Various types of dryers can be applied, but in this embodiment, a microwave drying unit 150 is used to allow a microwave drying operation to proceed.

 If the microwave drying unit 150 is applied as in the present embodiment, drying can be performed from the inside of the semi-finished product in which the flame retardant has been absorbed, and rapid drying without burning can be achieved.

The microwave drying unit 150 may include a dryer 151 and a microwave module 152, as shown in FIGS. 4 and 9.

The dryer 151 is a place where the drying operation for the impregnated semi-finished product proceeds. The dryer 151 includes a drying unit inlet 151a through which a semi-finished product is impregnated and a drying unit outlet 151b through which the dried semi-finished product is discharged. On the conveyor 156 to which the semi-finished product is conveyed, .

The drying unit inlet 151a and the drying unit outlet 151b are provided with dryer doors 153 and 154 which are opened when the semi-finished product is transferred and are shut off when the transfer of the semi-finished product is stopped. Although the dryer doors 153 and 154 are schematically shown in the drawing, the dryer doors 153 and 154 are installed in the drying unit inlet 151a while being operated to be hermetically closed so that the drying unit inlet 151a and the drying unit outlet 151b are not opened, And the drying unit discharge unit 151b.

The microwave module 152 is provided in the dryer 151 and serves to generate a microwave toward the semi-finished product. When the microwave is generated toward the semi-finished product through the microwave module 152, the semi-finished product can be dried quickly due to heat generated from the inside due to the dielectric effect by the microwave. Finished semi-finished products can achieve a more rigid and rigid condition.

Next, the unit 160 for attaching the flame-retardant reinforcement paper is arranged behind the process of the drying unit 150, and serves to attach the flame retardant reinforcement paper 13 to both sides of the dried semi-finished product. The flame retardant reinforcement sheet 13 may also be provided with a flame retardant treatment in advance by the flame retardant impregnation method of the flame retardant finish body 11. [

Meanwhile, as described above, the semi-finished product passing through the microwave drying unit 150 also maintains a certain degree of rigidity.

However, in order for the outer finishing material 10 to have a value as a product as shown in Fig. 1A, and for protecting the strength and protecting the outer surface, it is necessary to attach the flame retardant reinforcement 13 to both sides of the semi-finished product. 160).

As shown in FIGS. 4 and 10, the unit 160 for attaching the flame retardant paper may include a plurality of flame retardant paper feed units 161 and a plurality of rollers 162 for attaching the flame retardant paper.

The flame-retardant reinforcing paper supplying unit 161 serves to supply the flame-retarded reinforcing paper 13 to one side of the semi-finished product that has been dried. Since the flame-retardant reinforcing paper 13 is to be supplied to both sides of the semi-finished product that has been dried, the flame-retarded reinforcing paper supplying unit 161 can supply the flame-retarded reinforcing paper to both sides of the dried semi-finished product at different positions. Preferably, the flame retardant reinforcement 13 is a kenafled flame retardant reinforcement 13.

The flame-retardant reinforcing paper-attaching roller 162 is rotatably disposed on both sides of the semi-finished product having been dried, and the flame-retarded reinforcing paper 13 supplied from the flame- (13) and the semi-finished product.

At this time, since the integrated operation of the flame retardant reinforcing paper 13 and the semi-finished product may not be performed well only by the pressing force of the roller 162 for attaching the flame-retardant reinforcing paper, the unit 160 having the flame- 163).

The adhesive spraying section 163 is disposed between the flame retardant reinforcement sheet supply section 161 and the roller 162 for attaching the flame retardant reinforcement sheet and serves to inject the adhesive agent to the flame retardant reinforcement sheet 13 which is directed to the semi-finished product. After the adhesive is sprayed onto the flame retardant reinforcing paper 13 by the adhesive spraying portion 163 and the adhesive portion of the flame retardant reinforcing paper 13 is adhered to the semi-finished product, the semi-finished product is transferred to the pair of the flame- The flame retardant reinforcing paper 13 and the semi-finished product can be integrated into a single body.

Next, the compression unit 170 is disposed behind the process of the flame retardant reinforcing paper attaching unit 160 and functions to press the semi-finished product to which the flame retardant reinforcing paper 13 is attached on both sides. By performing such a pressing process, the external finishing material 10 having a structure in which the flame-retardant finishing main body 11 and the flame-retarded reinforcement paper 13 are integrated can be formed.

For reference, unlike the drawings, the unit 160 having a roll-type flame retarding material may be omitted, and the flame-retarding reinforcing paper 13 may be separately prepared to advance the compression unit 170 directly. The apparatus in which the reinforcing paper attaching unit 160 is omitted also belongs to the scope of the present invention.

In addition, although the flame-retarded reinforcing paper 13 and the semi-finished product are integrated into a single body through the flame-retarded reinforcing paper attaching unit 160, this is a technique of attaching the flame-retarded reinforcing paper 13 to the semi-finished product. The compression bonding process by the compression unit 170 proceeds to make the flame retardant reinforcement 13 integrated with the semi-finished product and the semi-finished product into an actual product. As the pressing process progresses, the thickness of the semi-finished product and the flame retardant reinforcement sheet 13 integrated into a single body may become tight.

4 and 10, the compression unit 170 may include a thermal compression bonding unit 171 and a cold compression bonding unit 173.

In this embodiment, the compression unit 170 is implemented to include the thermocompression bonding unit 171 and the cold compression bonding unit 173, thereby improving the quality of the product by increasing the quality of the compression bonding. Between the thermocompression bonding portion 171 and the cooling press bonding portion 173, there is provided a conveyor 175 for transferring the semi-finished products therebetween.

The thermocompression bonding portion 171 serves to press the semi-finished product, to which the flame-retarded reinforcing paper 13 is attached, on both sides thereof with heat, through the unit 160 with the flame- The temperature by the thermocompression bonding portion 171 may be 120 to 170 degrees centigrade.

The thermocompression bonding unit 171 includes a pair of thermocompression rollers 171a and 171b for thermally pressing the semi-finished product having the flame retardant paper 13 on both sides thereof, and a thermocompression roller 171a for driving the thermocompression rollers 171a. And a heat supplier 171c for supplying heat to the thermocompression roller 171a. The heat is applied to the thermocompression rollers 171a by the heat supplier 171c and then the intervals of the thermocompression rollers 171a are adjusted by the first roller driver 171b, The semi-finished product to which the flame retardant reinforcement paper 13 is adhered passes through the heat-pressing process.

The cold-pressed portion 173 is disposed behind the thermocompression bonding portion 171 and serves to compress and press the semi-finished product that has been thermocompression-bonded. The cooling time by the cold-pressed part 173 may be about 1 minute or less.

The cooling pressure bonding portion 173 includes a pair of cooling pressure rollers 173a for cooling and pressing the semi-finished product that has been thermocompression-bonded, a second pressure adjusting portion 173a for driving the cooling pressure pressing roller 173a, A roller driving portion 173b, and a cold air supplying device 173c for supplying cold air to the cold pressing roller 173a. The cold pressurizing roller 173a is supplied with cool air by the cold air supplier 173c and then the interval between the cooling press rollers 173a is adjusted by the second roller driver 173b, The semi-finished product having completed the thermocompression is passed, so that the cold pressing process by cold air can proceed.

Finally, the secondary cutting unit 180 is disposed behind the process of the compression unit 170, and serves to cut a unit size for launching the product. That is, the semi-finished product that has been thermally compressed and cooled is cut into a unit size required by the market in the secondary cutting unit 180.

4 and 10, the second cutting unit 180 includes a second cutter 181 for cutting the semi-finished product while being driven up / down, and a second cutter 182 connected to the second cutter 181 And a second cutter up / down driver 182 for driving the second cutter 181 up / down.

Here, the second cutter up / down drive unit 182 may also be a hydraulic, pneumatic or pneumatic / hydraulic combined cylinder, but a combination of a motor and a ball screw may be used instead of the cylinder. Then, the second cutter 181 can cut the semi-finished product in a direction intersecting not one direction, but can be cut to a size as shown in Fig.

The roller type conveyor 185 can be applied so that the semi-finished product can be cut well when the second cutter 181 is up / down by the second cutter up / down driving unit 182. That is, in the case of this embodiment, the conveyor for conveying the semi-finished product at the lower portion of the second cutter 181 can be applied as a roller type conveyor 185 for allowing the operation of the second cutter 181.

Therefore, the cutting operation can proceed well without interference, thereby making it possible to manufacture the external finishing material 10 as shown in FIG.

Hereinafter, a process of manufacturing the building wall 1 will be described in detail with reference to FIGS. 11 and 12. FIG.

First, the internal board assembly 6 is manufactured using the internal board assembly manufacturing apparatus 50 (S10). At this time, as described above, the inner board assembly 6 is manufactured while the flame-retardant and flame-resistant honeycomb board 2 replaces the center portions of the first and second urethane boards 4 and 5. Then, the external finishing material 10 is manufactured using the external finishing material manufacturing apparatus 60 (S20). The process of manufacturing the inner board assembly 6 and the process of manufacturing the outer finishing material 10 may each be a separate process.

Hereinafter, the manufacturing step S20 of the external finishing material 10, which is somewhat complicated, will be described with reference to FIG.

First, a kenaf as a main raw material, a low melting point fiber (LM) as an auxiliary raw material and polyethylene terephthalate (PET) are blended at a predetermined blending ratio in a raw material blending unit 110 (S110). The raw material after the mixing is discharged through the discharge portion 111a of the mixing unit tank 111.

The discharged raw material is processed by sequentially passing the processing rollers 121 to 123 of the raw material processing unit 120 (S120).

When the raw material is passed through the processing rollers 121 to 123 of the raw material processing unit 120 and is made into a semi-finished product of a certain thickness, the raw material is fed by the first cutter 131 of the primary cutting unit 130 (S130), the flame retardant is impregnated into the flame retardant impregnation tank 142 of the flame retardant impregnation unit 140 while being transported (S140).

When the impregnation process is performed for a predetermined time, the drying process for the impregnated semi-finished product proceeds (S150). The drying process may proceed through the microwave drying unit 150 as described above.

Next, when the drying process is completed, the process of attaching the flame retardant reinforcement paper 13 to the both sides of the semi-finished product is performed by the flame retardant reinforcing paper attaching unit 160 (S160).

After the flame retardant reinforcement paper 13 is attached to both sides of the semi-finished product, the semi-finished product is pressed (S170) while sequentially passing the thermocompression bonding portion 171 and the cold-pressed portion 173 of the compression unit 170.

After the pressing process, the secondary cutting process is performed by the second cutter 181 of the secondary cutting unit 180 (S180), so that the external finishing material 10 of the type shown in FIG. 1D can be manufactured.

After the outer finishing material 10 is manufactured, the inner board assembly 6 and the outer finishing material 10 are combined with each other through the honeycomb board and the external finishing material joining device 70, (S30).

According to the present embodiment having the structure and function as described above, it is possible to provide various functions such as a flame retarding function, a sound absorbing function or a heat insulating function, and it is possible to utilize it as an interior material, a partition or a wall In addition, since it is light in weight, it is possible not only to reduce the occurrence of loss in transporting the logistics, but also to facilitate handling and easy construction.

13 and 14 are modifications of the building wall, respectively.

Unlike the above-described embodiment, the building walls 1a and 1b may be made of the structures shown in Figs. 13 and 14. Fig.

The internal board assembly 6a applied to the building wall 1a shown in Fig. 13 has a structure in which a urethane board 4 is disposed between a pair of honeycomb boards 2, The inner board assembly 6b applied to the inner wall 1b has a structure in which the honeycomb board 2 and the urethane board 4 are repeatedly arranged in multiple layers. 1b) is applied, the effect of the present invention can be provided.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

1: Building wall 2: Honeycomb board
4: Urethane board 6: Internal board assembly
10: external finish material 11: flame retardant finish material body
13: Flame retardant reinforcement

Claims (19)

A honeycomb board formed by flame-retarding treatment of paper, and a urethane board formed by a flame-retardant treatment of a urethane material, wherein one of the honeycomb board and the urethane board is disposed between the other boards, Internal board assembly; And
And first and second external finishes made of a material including at least one of recycled polyurethane and kenaf, bonded to both surfaces of the internal board assembly. The method according to claim 1,
The internal board assembly includes:
The honeycomb board;
A first urethane board disposed on one side of the honeycomb board and bonded to the honeycomb board; And
And a second urethane board disposed on the other surface of the honeycomb board and bonded to the honeycomb board. 3. The method of claim 2,
Wherein the first and second exterior finishers are disposed on and bonded to the outer surfaces of the first and second urethane boards, respectively. The method according to claim 1,
In the honeycomb board,
First and second sound absorbing plates arranged side by side spaced apart from each other; And
And a plurality of sound absorbing sound spaces for connecting the first and second sound absorbing plates to allow sound absorption or sound insulation, and a sound absorbing sound connection portion formed to be larger than the thickness of the first and second sound absorbing plates Building wall. The method according to claim 1,
At least one of the first and second external finishes is produced by mixing the recycled polyurethane as the main raw material and the kenaf and the polypropylene as the auxiliary raw materials at a predetermined blending ratio,
Wherein the recycled polyurethane has a weight ratio of 35 to 45% by weight of the recycled polyurethane, 20 to 30% by weight of the kenaf, and 15 to 25% by weight of the polypropylene. The method according to claim 1,
Wherein at least one of the first and second outer finishes comprises a mixture of the kenaf as the main raw material, low melting fiber (LM) and polyethylene terephthalate (PET) as an auxiliary raw material at a predetermined blending ratio , ≪ / RTI >
Wherein the weight ratio of the kenaf, the low melting point fiber (LM) and the polyethylene terephthalate (PET) is 40 to 70 wt%, 30 to 50 wt%, and 10 to 30 wt%, respectively. The method according to claim 1,
Wherein at least one of the first and second exterior finishes comprises:
A flame-retardant finish body to be flame-retarded; And
And a flame retardant reinforcement disposed on both surfaces of the flame-retardant finishing material main body for reinforcement of the flame-retardant finishing material main body, the flame-retarded reinforcement being flame-retarded separately from the flame-retardant finishing material main body. 8. The method of claim 7,
The amount of the flame retardant impregnated into the flame retardant main body is 2 to 3 times the weight of the flame retardant main body, and the amount of the flame retardant impregnated into the flame retardant is 2 to 3 times the weight of the flame retardant. Building wall. The method according to claim 1,
Wherein the urethane board is a polyisocyanurate (PIR) board. The method according to claim 1,
Further comprising a connecting member fitted to the groove of the honeycomb board for connection of the honeycomb boards disposed adjacent to each other. A honeycomb board formed by flame-retarding treatment of paper, and a urethane board formed by a flame-retardant treatment of a urethane material, wherein one of the honeycomb board and the urethane board is disposed between the other boards, An inner board assembly manufacturing step of manufacturing an inner board assembly to be manufactured;
An outer finishing material manufacturing step of manufacturing an outer finishing material made of a material including at least one of recycled polyurethane and kenaf, which is bonded to both surfaces of the inner board assembly; And
And joining the inner board assembly and the outer finishing material to each of the two surfaces of the inner board assembly to bond the outer finishing materials to each other. 12. The method of claim 11,
Wherein the internal board assembly manufacturing step includes:
A honeycomb board disposing step of disposing the honeycomb board;
A urethane board disposing step of disposing the urethane board on both sides of the honeycomb board with the honeycomb board therebetween; And
And a board bonding step of bonding the honeycomb board and the urethane board to each other. 12. The method of claim 11,
Wherein the step of manufacturing the external finishing material comprises:
A raw material blending step of blending predetermined raw materials at a predetermined blending ratio;
A raw material processing step in which the compounded raw materials are assembled and processed into semi-finished products having a uniform thickness; And
And impregnating the semi-finished product with a flame retardant material. 14. The method of claim 13,
Wherein the step of manufacturing the external finishing material comprises:
A first cutting step of cutting the semi-finished product to a size suitable for impregnation before performing the flame retardant impregnation step; And
Further comprising a drying step of drying the impregnated product after the infiltration of the flame retardant is completed. 15. The method of claim 14,
Wherein the drying step is a microwave drying step for allowing the microwave drying operation to proceed. 15. The method of claim 14,
Wherein the step of manufacturing the external finishing material comprises:
Further comprising a step of attaching a flame-retardant reinforcement material to both sides of the semi-finished product after the drying step, wherein the flame-retardant reinforcement material is attached to both sides of the semi-finished article. 17. The method of claim 16,
Wherein the step of manufacturing the external finishing material comprises:
Further comprising a pressing step of integrating the flame retardant reinforcement paper by pressing the semi-finished article having the flame retardant reinforcement paper on both sides thereof after the step of attaching the flame retardant reinforcement paper. 18. The method of claim 17,
Wherein the pressing step comprises:
Pressing the semi-finished product having the flame-retardant reinforcement paper on both sides thereof by thermocompression; And
And a cold pressing step of cold-pressing the semi-finished product that has been thermocompression-bonded. 18. The method of claim 17,
Wherein the step of manufacturing the external finishing material comprises:
Further comprising a second cutting step of cutting a unit size for release of the product after performing the pressing step.

Images