KR101463409B1 - Method for manufacturing inner-wall boards of building - Google Patents

Abstract

The present invention relates to a method of manufacturing a board for building interior decoration. In this method, a dough of a raw material is placed on a conveyor through a feeder, and then processed into a material (M2) of a certain width and thickness through a pressing roller. A second step of finishing the material (M2) to a material (M3) having a thickness smaller than that of the material (M2) through a compression roller having a relatively large diameter as compared with the preceding pressing roller A third step of drying the material (M3) by drying in a gas atmosphere and processing the material (M4) with surface treatment; A fourth step of completely drying the material (M4) to obtain a plate-shaped material; And a fifth step of cutting the plate-shaped material to complete the board. According to the present invention, not only is the quality and characteristics of the product excellent, but also the productivity is superior to the pressing process using a conventional molding die.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a method for manufacturing a fireproof board for interior use, which is mainly used as a finishing material for a building.

Chemical materials are used as building interior materials. Called sandwich panel, which is inexpensive, easy to handle, has good strength and heat insulation and is widely used as a prefabricated building material. However, this material is highly flammable and burns in an instant. At the same time, harmful gas is generated and causes fatal damage. On the other hand, since inorganic materials are highly nonflammable, there has been much research and development on this material as an interior material.

For example, Japanese Patent No. 853754 discloses a fire-proof, refractory molded board using vermiculite or perlite.

Looking at the manufacturing process of this board:

Mixing and stirring lightweight aggregate such as vermiculite or pearlite which is heated and expanded again to a mixture of ordinary Portland cement and granulated blast furnace slag, semi-gypsum plaster, expanded perlite fine powder, sodium silicate, water reducing agent and water;

Filling the obtained refractory composition in a molding mold and pressing or vibrating the molding;

1, 2nd natural drying and demolding;

Thereby completing the fireproof molded board.

Other examples include: non-burnable boards based on magnesium oxide, magnesium chloride, pearlite and the like, as described in patents 704165 and 728746; Patent No. 774087 and No. 780608 disclose a decorative ocher board based on charcoal and ocher powder; Japanese Patent No. 642213, and Japanese Patent Application Laid-Open No. 2010-119535 disclose boards for interior decoration using waste paper or waste polyurethane.

It is true that these products are advantageous in terms of functions such as incombustibility, heat insulation, sound absorption and the like as materials for building interior decoration as compared with conventional panels. However, the disclosed patents are not suitable for mass production of products. That is, in this embodiment, a composition in a kneaded state is filled in a molding mold, and then a press molding machine or a vibration molding machine is used to take one by one.

Of course, this method is not suitable for mass production of boards. Further, since the size or the size is determined by the mold or the frame, it is impossible to apply the required numerical value.

The present invention has been proposed to solve the problems of the prior art. An object of the present invention is to provide a method of manufacturing a board for interior decoration that enables an automation process and can improve productivity as compared with a conventional press forming method. Another object of the present invention is to provide a method of manufacturing a board for interior decoration that is capable of producing an excellent product in terms of strength and surface treatment. Another object of the present invention is to provide a method of manufacturing a board for interior decoration which can cut and use the size of a completed board as needed.

A method of manufacturing a building interior board according to the present invention comprises:

A first step of placing the dough of the raw material on a conveyor through a feeder and then processing the same into a material M2 having a certain width and thickness by passing through a pressing roller;

A second step of finishing the material (M2) to a material (M3) having a thickness smaller than that of the material (M2) through a compression roller having a relatively large diameter as compared with the preceding pressing roller

A third step of processing the material (M3) by drying in a gas drying chamber to form a surface-treated material (M4);

A fourth step of completely drying the material (M4) to obtain a plate-shaped material;

A fifth step of cutting the plate-shaped material to complete the board;

.

Preferably, the first step comprises:

A preliminary step of placing the dough (P1) on a conveyor through a first feeder and then passing it through a first press roller to produce a material (M1) of constant width and thickness;

A dough P2 having the same or different raw material as that of the dough P1 is placed on the material M1 through the second feeder and then passed through the second compression roller to form a small- And a chaebol step to process the data.

Also preferably, the first step further comprises a step of forming the material M2 by using a pressing roller and simultaneously laminating the fiber sheet to the surface of the material M2.

On the other hand, the gas is selected from among ammonia, amine and nitrogen gas.

According to the manufacturing method of the present invention, serial processes such as input of raw materials, processing in the form of a material, drying, and surface treatment can be automated. Therefore, it is possible to mass-produce the board. Also, in this process, it is possible to carry out processes such as reprocessing, reinforcement treatment, and surface treatment on the material, and thus it is possible to produce an excellent product in terms of strength and surface treatment.

Meanwhile, according to the present invention, the plate-shaped material according to the process can be cut to a required size and used. Therefore, unlike the conventional case in which the mold is formed in a predetermined size by the molding mold, it is possible to flexibly cope with the construction situation.

1 is a schematic structural view of a system for carrying out a manufacturing method according to the present invention;
2 is a process flow chart for performing the manufacturing method according to the present invention.

The features and advantages of the present invention 'method for manufacturing a board for interior decoration' (hereinafter referred to as 'method of manufacture') described above will become more apparent from the following description of the embodiments with reference to the accompanying drawings.

Referring to FIG. 1, a system for practicing the present invention is labeled 10. The system 10 includes a raw material processing section 11, a material processing section 12 and a surface treatment section 13. The raw material of the board for building interior decoration is formed on a conveyor 14 And is processed into a predetermined shape while sequentially passing through the respective parts (11, 12, 13).

The raw material preferably uses a conventional nonflammable board material including pearlite. However, the present invention is not limited to the kinds of raw materials. Other known raw materials such as vermiculite, ordinary portland cement, blast furnace slag, expanded perlite, sodium silicate, magnesium oxide, magnesium chloride, charcoal, loess and other known raw materials may be suitably mixed and used as needed.

The raw material processing section 11 is composed of a hopper type feeder 15 and a pressing roller 16 disposed in front of the feeder 15 so that raw material in a dough P state is conveyed from the feeder 15 to a conveyor 14 and is subsequently processed into a material having a constant width and thickness while passing through the pressing roller 16. [ To begin with, the width of the material can be determined by the left and right guides of the conveyor 14, and the thickness is determined by the up-and-down distance of the pressing roller through which the material passes.

Therefore, only the thickness of the following materials will be described below. However, the thickness difference is not considered in the drawings.

In this embodiment, the processing portion 11 includes two pairs of feeder-pressing rollers 15a-16a, 15b-16b arranged in sequence. Specifically, when the dough P1 is first placed on the conveyor 14 from the first feeder 15a and passes through the first squeeze roller 16a, it is processed into the material M1 form; Again, the dough P2 is placed on the material M1 from the second feeder 15a and passes through the squeeze roller 16a as a whole, and is processed into the material M1 form. Of course, the material M2 has a smaller thickness than the material M1.

In another embodiment, the raw dough P1 may be processed into a material M2 having a certain width and thickness through a single feeder-press roller 15a-16a structure. However, in this embodiment, for example, the strength and water repellency of the material can be improved by repeatedly laminating and pressing the same raw materials, and other necessary characteristics of the board for interior use such as nonflammability, warmth, sound absorption, water repellency, , And the inertia, etc. can be reinforced or supplemented.

As is known, the board is reinforced by a method of bonding a fabric sheet such as a fabric or a nonwoven fabric to the surface side of the board. For this purpose, in this embodiment, the fiber sheet 17 is applied to the pressing roller 16b of the processing portion 11 so that the surface of the fiber sheet 17 is impregnated with the pressing roller 16b during processing into the material M2.

The material processing unit 12 is constituted by a large diameter pressing roller 18 having a relatively larger diameter than the preceding pressing rollers 16a and 16b and is further reduced in thickness as the material M2 passes therethrough, And is micro-machined with a material M3 having a thickness or a thickness close thereto. In this case, a large-diameter pressing roller 18 is used for density and surface uniformity of the material M3, preferably 100 to 120Ø rollers.

The surface treatment section 13 is composed of a gas drying chamber 19 for performing drying or semi-drying of the material M3 and a pressing roll 20 for surface treatment. The gas used in the gas drying chamber 19 is selected from ammonia, nitrogen, amine, and the like. That is, the material M3 is firstly dried in a gas atmosphere. In fact, this drying method is characterized in that the surface of the material M3 is smoothly treated and the surface strength is improved. Therefore, the gas drying chamber 19 does not completely dry the material M3.

The material M4 thus treated passes through the surface treatment roller 20 preferably, and its surface density is improved and treated more smoothly. The material M5 thus processed is smaller or equal in thickness to the materials M3 and M4, and the material M5 is completely dried in this state.

Referring to FIG. 2, a 'method for manufacturing a board for building interior decoration' using the upper system 10 will be described in order. Explanations overlapping with the above description are omitted as far as possible.

Raw dough  Processing step

In this step, the raw dough P1 is placed on the conveyor 14 through the feeder 15a, and the raw material dough P1 is passed through the pressing roller 16a to roughly process the raw material dough M1 into a predetermined width and thickness. The raw material dough P2 is placed again on the material M1 through the feeder 15b and then passed through the pressing roller so that the raw material dough P2 is processed into a small thickness material in comparison with the case of rough working.

The doughs P1 and P2 may be doughs of the same or different raw materials, and the material M2 after the chaotism processing is smaller in thickness than M1. Actually, the thickness of the material M1 is 35 mm and the thickness of the material M2 is 15 mm. Of course, a predetermined thickness can be directly obtained in the above-mentioned rough machining, but preferably includes chaebol processing.

Fiber sheet Lint stage

This step is a step of laminating a fiber sheet 17 such as a fabric or a nonwoven fabric to the surface of the material M2 for the purpose of strength, insulation and the like of the entire process and product of the present invention. In this embodiment, a glass fiber sheet is used. In the laminating method, the fiber sheet 17 is attached to the pressing roller 16b so that the material is processed from M1 to M2, and the surface of the fiber sheet 17 is impregnated with the fiber sheet 17.

Fine processing step

In this step, the material M2 processed above is passed through a large-diameter pressing roller 18 having a relatively larger diameter as compared with the preceding pressing rollers 16a and 16b, and is then finely processed to a thickness or a thickness close to the thickness of the final product . In order to improve the density and the surface uniformity of the passing material M3, a roller having a diameter larger than that of the preceding rollers 16a and 16b, preferably a diameter of 100 to 120, is used. Here, the thickness of the material M3 is 10 mm.

Dry  step

This step is a step of drying the micro-machined material (M3) in the gas drying chamber (19). Here, 'dry' refers to semi-drying that is not completely dry, ie, containing moisture. Thus, the material (M3) is primarily dried in a high-temperature gas atmosphere. Ammonia, nitrogen, amine and the like can be selectively used as the gas, and other drying conditions are determined depending on the raw materials of the dough (P1, P2). In fact, the material M4 by this drying method has the feature of improving surface density and strength, and being smooth and smooth.

Surface treatment step

This step is a step of surface-treating the dried material (M4) while passing the roller (20). For example, the surface density is improved in the drying step, but fine surface damage may occur during drying. Accordingly, the surface is evenly treated with the roller 20 as a finishing step. The roller 20 may be a heat roller. The thickness of the material M5 thus treated is 10 mm or 9 mm.

Product Completion Phase

In this step, the processed material M5 is completely dried in a natural state, and the obtained plate-like material is cut to a required size to complete the board for building interior decoration.

Each of the above steps can be performed serially in the automation process. Therefore, the product is excellent in productivity and quality as compared with a press process using a conventional molding mold.

10. System 11. Material processing section
12. Material processing section 13. Surface processing section
14. Conveyor 15. Feeder
15a. The first feeder 15b. The second feeder
16. Compression roller 16a. The first pressing roller
16b. Second press roller 17. Fiber sheet
18. Large diameter pressing roller 19. Gas drying chamber
20. Rollers

Claims (5)

A first step of placing the dough of the raw material on the conveyor 14 through the feeder 15 and then passing the dough of the raw material through the pressing roller 16 into a material M2 having a certain width and thickness;
A second step of processing the material M2 into a material M3 having a thickness smaller than that of the material M2 through a compression roller 18 having a relatively large diameter as compared with the preceding pressing roller 16;
A third step of drying the material (M3) in a gas atmosphere in a gas drying chamber (19) and drying the dried material (M4);
A fourth step of completely drying the material (M4) to obtain a plate-shaped material;
A fifth step of cutting the plate-shaped material to complete the board;
/ RTI >
The gas in the gas drying chamber is selected from among ammonia, amine and nitrogen gas;
Wherein the method comprises the steps of:
The method of claim 1, wherein the first step comprises:
A preliminary step of placing the dough (P1) on the conveyor through the first feeder (15a) and passing the dough (P1) through the first press roller (16a) and processing the material (M1) into a certain width and thickness;
The dough P2 having the same or different raw material as the dough P1 is placed on the material M1 through the second supply 15b and then passed through the second press roller 15b to melt the material M1, (M2);
Wherein the method further comprises the steps of:
The method of claim 1, wherein the first step comprises:
A step of laminating and impregnating the fiber sheet on the surface of the material (M2) while forming the material (M2) by using the pressing roller (16b);
Further comprising the steps of:
delete The method of claim 1, further comprising: after the third step;
Passing the dried material (M4) through a roller (20) and processing it into a surface treated material (M5);
Further comprising the steps of:

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