KR20210087632A - Sound absorbing board manufacturing method and sound absorbing board manufactured by the same - Google Patents

Abstract

Disclosed are an eco-friendly semi-nonflammable sound-absorbing door and a manufacturing method thereof. According to a first embodiment of the present invention, an eco-friendly semi-nonflammable sound-absorbing door comprises: an eco-friendly semi-nonflammable board manufactured by a predetermined fiber board having an eco-friendly and semi-nonflammable function and spaced apart from each other; and a sound-absorbing and insulating paper board which is made of paper, but has a sound absorption and insulation function, and is formed integrally with the eco-friendly semi-nonflammable boards through thermocompression molding between eco-friendly semi-nonflammable boards.

Description

Eco-friendly semi-non-combustible sound-absorbing door and its manufacturing method {Sound absorbing board manufacturing method and sound absorbing board manufactured by the same}

The present invention relates to an eco-friendly semi-nonflammable sound-absorbing door and a method for manufacturing the same, and more particularly, it can be efficiently and simply manufactured, and can provide higher durability and sound-absorbing function than conventional doors, and is particularly environmentally friendly and semi-nonflammable. It relates to an eco-friendly semi-non-combustible sound-absorbing door that can provide a function, and a method for manufacturing the same.

In a villa, apartment, or building, a door is provided as a means for opening and closing an entrance to a room. A door that is rotatably installed on a door frame, also called a door frame, includes a handle and a hinge for each position.

Meanwhile, with the exception of the entrance door, the doors installed indoors are usually made of MDF (Medium Density Fiberboard) plywood. MDF plywood is widely used because of its light weight and low price.

However, although the door made of MDF plywood is light, it is deformed when wet with water, which inevitably reduces durability, and the sound absorption function is relatively weak. In particular, considering that a door made of ordinary MDF plywood is a combustible product in its structure, it is inevitably very vulnerable to fire, and the need for an eco-friendly semi-noncombustible sound-absorbing door of a new concept that is not known before is emerging.

Korean Intellectual Property Office Application No. 20-2018-0001607

Therefore, the technical problem to be achieved by the present invention is that it can be efficiently and simply manufactured, and can provide higher durability and sound absorption function than conventional doors, and in particular, environmentally friendly semi-non-combustible sound-absorbing door that can provide a semi-non-combustible function as well as an environmentally friendly door and to provide a method for manufacturing the same.

According to one aspect of the present invention, an eco-friendly semi-non-combustible board manufactured by a predetermined fiber board having an eco-friendly and semi-non-combustible function is spaced apart from each other; and a sound absorbing and insulating paper board made of paper, which has a sound absorbing and insulating function, and is integrally formed with the eco-friendly semi-non-combustible boards through thermocompression molding between the eco-friendly semi-non-combustible boards. A door may be provided.

A first accessory installation reinforcing bar disposed between the eco-friendly semi-non-combustible boards and forming the same plane as the sound absorbing and insulating paper board and forming a place where the door handle part is installed may be further included.

The first accessory installation reinforcing bar is disposed at a different position and may further include a second accessory installation reinforcing bar constituting a place where the hinge part of the door is installed.

and an exterior film integrally covering outer surfaces of the eco-friendly semi-noncombustible board, the sound absorbing and insulating paper board, the first accessory installation reinforcing bar, and the second accessory installation reinforcing bar.

The sound absorbing and insulating paper board includes: first and second sound absorbing and insulating plates arranged in parallel to be spaced apart from each other; and a sound-insulating connection wall connecting the first and second sound absorbing and insulating plates, having a plurality of sound absorbing and insulating spaces to enable sound absorbing or insulating, and formed to be larger than the thickness of the first and second sound absorbing and insulating plates. have.

The eco-friendly semi-non-combustible board may be an eco-friendly semi-non-combustible sound-absorbing board in which a plurality of grooves are formed at equal intervals on the plate surface for sound absorption.

According to another aspect of the present invention, an eco-friendly semi-non-combustible board manufacturing step of manufacturing an eco-friendly semi-non-combustible board which is manufactured by a predetermined fiber board having an eco-friendly and semi-non-combustible function and spaced apart from each other; A sound absorbing and insulating paper board manufacturing step of manufacturing a sound absorbing and insulating paper board made of paper but having a sound absorbing and insulating function; and a thermocompression bonding step of disposing the eco-friendly semi-non-combustible boards on both sides of the sound absorbing and insulating paper board and forming the sound absorbing and insulating paper board and a pair of the eco-friendly semi-non-combustible boards at once through thermocompression bonding. An eco-friendly semi-noncombustible sound-absorbing door manufacturing method characterized in may be provided.

Before performing the thermocompression bonding step, a first accessory installation reinforcing bar disposed between the eco-friendly semi-non-combustible boards, forming the same plane as the sound absorbing and insulating paper board, and forming a place where the door handle part is installed. 1 may further include the step of placing the reinforcement for the installation of attachments.

The method may further include a second accessory installation reinforcing bar arrangement step of disposing a second attachment reinforcing bar disposed at a different position from the first attachment reinforcing bar and forming a place where the hinge part of the door is installed.

The method may further include an exterior film covering step of integrally covering the outer surfaces of the eco-friendly semi-noncombustible board, the sound absorbing and insulating paper board, the first accessory installation reinforcement bar, and the second accessory installation reinforcement rod through an exterior film.

The manufacturing of the fiber board in the eco-friendly semi-non-combustible board manufacturing step may include: an eco-friendly raw material blending step of blending a predetermined eco-friendly raw material in a predetermined mixing ratio through an eco-friendly raw material mixing unit; Raw material processing step of processing the blended raw material into a semi-finished product having a certain thickness by using a raw material processing unit; a first cutting step of first cutting the semi-finished product to a size suitable for impregnation using a first cutting unit; A composite agent impregnation step of impregnating the first cut semi-finished product into the composite agent through a composite agent impregnation unit containing all of the composite agent, desiccant and adhesive; A drying step of drying the impregnated semi-finished product with a microwave-type drying unit; and compressing the semi-finished product through a pressing unit so that the outer surface of the semi-finished product is not lifted.

The eco-friendly semi-noncombustible board may be an eco-friendly semi-non-combustible sound-absorbing board in which a plurality of grooves are formed at equal intervals on the plate surface for sound absorption, and the eco-friendly semi-noncombustible board manufacturing step is for manufacturing the eco-friendly semi-non-combustible sound-absorbing board It may be an eco-friendly semi-non-flammable sound-absorbing board manufacturing stage.

The eco-friendly semi-non-combustible sound-absorbing board manufacturing step includes: a fiber board production preparation step of preparing and preparing a predetermined fiber board having an eco-friendly and semi-non-combustible function; and forming a plurality of grooves or holes in the fiber board at the same time using a predetermined punch tool.

In the step of forming a groove or a hole using the punch tool, a punch is formed in the fiber board at equal intervals using the punch tool in which a plurality of punch pins are integrally formed on a tool body. It may be a step of forming a groove using a tool for use.

The method may further include a protrusion cutting step of cutting the protrusion protruding from one side of the fiber board without breaking through the groove forming step using the punch tool.

Before performing the step of cutting the protrusion, the method may further include a fiber board overturning step of turning over the fiber board having the plurality of grooves formed therein.

After performing the protrusion cutting step, it may further include a board finishing step of finishing the outer surface to complete the eco-friendly semi-non-combustible sound-absorbing board.

The step of forming a groove or a hole using the tool for punching may be a step of forming a hole using a tool for punching in which the plurality of holes are formed in the fiber board at equal intervals using the tool for punching.

After performing the hole forming step using the punch tool, the method may further include an eco-friendly reinforcing sheet attaching step of attaching an eco-friendly reinforcing sheet thinner than the fiber board and allowing air to pass on one surface of the fiber board on which the hole is formed. have.

According to the present invention, while it can be efficiently and simply manufactured, it can provide higher durability and sound absorption function than conventional doors, and in particular, it is environmentally friendly and can provide a semi-non-combustible function.

1 is a perspective view of an eco-friendly semi-non-flammable sound-absorbing door according to a first embodiment of the present invention.
FIG. 2 is a view of a state in which the exterior film is peeled off in FIG. 1 .
FIG. 3 is a schematic cross-sectional view taken along line AA of FIG. 1 .
FIG. 4 is a schematic cross-sectional view taken along line BB of FIG. 1 .
Figure 5 is a flow chart for the environmentally friendly semi-non-combustible sound-absorbing door manufacturing method of Figure 1.
6 is a block diagram of a fiber board manufacturing system.
7 is an enlarged view of the front process of FIG. 6 .
8 is an enlarged view of the composite impregnation unit.
9 is an enlarged structural diagram of an eco-friendly raw material mixing unit.
FIG. 10 is a view of a state in which the opening/closing shutter is opened in FIG. 9 .
11 is an enlarged view of the drying unit.
12 is an enlarged view of the rear process of FIG. 6 .
13 is a flowchart of a method of fabricating a fiber board.
14 is a perspective view of an eco-friendly semi-non-combustible sound-absorbing board applied to an eco-friendly semi-non-flammable sound-absorbing door according to a second embodiment of the present invention.
15 is a cross-sectional view taken along line CC of FIG. 14 .
Figure 16 is a flowchart for the environmentally friendly semi-non-combustible sound-absorbing board manufacturing step of Figure 14.
17 to 20 are process configuration diagrams corresponding to the environmentally friendly semi-non-combustible sound-absorbing board manufacturing step of FIG. 16 .
21 is a flowchart of a manufacturing step of an eco-friendly semi-non-combustible sound-absorbing board according to a third embodiment of the present invention.
22 and 23 are process block diagrams corresponding to the manufacturing method of FIG. 21 .

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

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a perspective view of an eco-friendly semi-non-flammable sound-absorbing door according to a first embodiment of the present invention, FIG. 2 is a view of a state in which the exterior film is peeled off in FIG. 1, and FIG. 3 is a schematic cross-sectional view taken along line AA of FIG. , Figure 4 is a schematic cross-sectional view taken along line BB of Figure 1, Figure 5 is a flow chart for the environmentally friendly semi-non-combustible sound-absorbing door manufacturing method of Figure 1.

Referring to these drawings, the eco-friendly semi-non-combustible sound-absorbing door 1 according to this embodiment can be manufactured as shown in FIG. 1 through the method of FIG. 5, and while it can be efficiently and simply manufactured, high durability and sound absorption than the conventional door Functions can be provided, and in particular, it can provide a semi-non-combustible function as well as being environmentally friendly.

1 to 4, the eco-friendly semi-non-combustible sound-absorbing door 1 according to this embodiment includes an eco-friendly semi-non-combustible board 7, a sound absorbing and insulating paper board 2, and a reinforcement for installing the first and second attachments 5 , 6 ), and an exterior film 8 .

The eco-friendly semi-non-combustible board 7 is a reinforcing plate manufactured by a predetermined fiber board 10 that is eco-friendly and has a semi-non-combustible function, as shown in FIGS. 6 to 13 below.

A practical manufacturing process of the eco-friendly semi-non-combustible board 7 will be described later. Eco-friendly semi-non-combustible boards 7 are applied as a pair, and are spaced apart from each other in parallel.

The sound absorbing and insulating paper board 2 is made of paper. At this time, the sound absorbing and insulating paper board 2 may or may not be semi-non-flammable, but it will be described as being semi-non-combustible. In other words, in the present embodiment, the sound absorbing and insulating paper board 2 is a board manufactured by semi-nonflammable treatment of paper and having a sound absorbing and insulating function.

The sound absorbing and insulating paper board 2 is integrally formed with the eco-friendly semi-non-combustible boards 7 through thermocompression bonding between the eco-friendly semi-non-combustible boards 7 .

When the sound absorbing and insulating paper board 2 is integrally formed with the eco-friendly semi-non-combustible boards 7 through thermocompression molding between the eco-friendly semi-non-combustible boards 7 as in this embodiment, the process can be simplified and productivity can be increased. can be significantly increased.

The sound absorbing and insulating paper board 2 will be described in more detail. The sound absorbing and insulating paper board 2 applied to this embodiment may be formed by semi-incombustible treatment of paper.

In other words, the sound absorbing and insulating paper board 2 applied to this embodiment can be formed by attaching paper sheets to both sides of the honeycomb surface of a paper material in which a honeycomb shape is continuously formed in all directions, and the entire surface including both surfaces is included. It can be manufactured in a semi-non-flammable and flame-retardant state by spray-coating a semi-incombustible and flame retardant. Accordingly, it is possible to provide both a sound absorption and insulation function and a semi-non-combustible function. In particular, since it is made of paper, it is light and easy to handle.

This sound absorbing and insulating paper board 2 has a first sound absorbing and insulating plate 2a that is integrated with the eco-friendly semi-non-combustible board 7 on one side and a second sound absorbing and insulating plate that is integrated with the other eco-friendly semi-noncombustible board 7 on the other side. A sound absorbing and insulating connecting wall 2c connecting the plate 2b and the first and second sound absorbing and insulating plates 2a and 2b and having a plurality of sound absorbing and insulating spaces (not shown) to enable sound absorbing or insulating. can

As described above, since a plurality of sound absorbing and insulating spaces (not shown) are formed in the sound absorbing and insulating connecting wall 2c, a sound absorbing and insulating effect can be provided due to the structure thereof. In this embodiment, the sound absorbing and insulating connecting wall 2c may be formed to be larger than the thickness of the first and second sound absorbing and insulating plates 2a and 2b. Therefore, it is advantageous to provide rigidity.

The reinforcing bar 5 for installing the first accessory is disposed between the eco-friendly semi-non-combustible boards 7 and forms the same plane as the sound absorbing and insulating paper board 2 , and forms a place where the door handle part 4 is installed. And, the second accessory installation reinforcing bar 6 is disposed at a different position from the first attached reinforcing bar 5, and forms a place where the door hinge part (not shown) is installed.

As described above, since the eco-friendly semi-non-combustible board 7 is made based on the fiber board 10 and the sound absorbing and insulating paper board 2 is made based on paper, a place for screw assembly, etc. is required, which The reinforcing bar 5 for installation and the 2nd attachment reinforcing bar 6 for installation are in charge.

The first attachment reinforcing bar 5 and the second attachment reinforcing bar 6 may be made of wood that can be screwed together, but metal or synthetic resin may be applied.

The exterior film 8 is a film integrally covering the outer surfaces of the eco-friendly semi-non-combustible board 7, the sound absorbing and insulating paper board 2, the first accessory installation reinforcement 5, and the second accessory installation reinforcement 6 to be.

After covering the exterior film 8, the door handle part 4 and the hinge part (not shown) are screwed together via the first accessory installation reinforcing bar 5 and the second attached reinforcing bar 6 to form one It is possible to manufacture the completed eco-friendly semi-non-combustible sound-absorbing door (1).

On the other hand, referring to FIG. 5 , the eco-friendly semi-noncombustible sound-absorbing door manufacturing method for manufacturing the eco-friendly semi-nonflammable sound-absorbing door 1 is an eco-friendly semi-noncombustible board manufacturing step (S1), a sound absorbing and insulating paper board manufacturing step (S2), the first It may include an accessory installation reinforcing bar arrangement step (S3), a second attachment reinforcing bar arrangement step (S4), a thermocompression molding step (S5) and an exterior film covering step (S6).

For reference, in this embodiment, the eco-friendly semi-non-combustible board manufacturing step (S1), the sound absorbing and insulating paper board manufacturing step (S2), the first accessory installation reinforcing bar arrangement step (S3), and the second accessory installation reinforcing bar arrangement step (S4) are sequential Although shown as shown, they do not matter which step is performed first.

The eco-friendly semi-non-combustible board manufacturing step (S1) is a process of manufacturing the eco-friendly semi-non-combustible board 7 by using a predetermined fiber board 10 that is eco-friendly and has a semi-non-combustible function. Since the fiber board 10 is processed and manufactured by the treatment process shown in FIGS. 6 to 13 below, the eco-friendly semi-non-combustible board 7 made using the same is light and has excellent rigidity, and has very strong fire resistance.

The sound absorbing and insulating paper board manufacturing step S2 is a process of manufacturing the sound absorbing and insulating paper board 2 manufactured by semi-inflammable treatment of paper and having a sound absorbing and insulating function.

The first accessory installation reinforcing bar arrangement step (S3) is disposed between the eco-friendly semi-incombustible boards 7 and forms the same plane as the sound absorbing and insulating paper board 2, and forms a place where the door handle accessory 4 is installed. It is a process of arrange|positioning the reinforcement bar 5 for 1st attachment installation.

The second accessory installation reinforcing bar arrangement step (S4) is arranged at a different position from the first attached reinforcing bar 5, and the second accessory installation reinforcing bar 6 is arranged to form a place where the door hinge part (not shown) is installed. is a process that

In the thermocompression bonding step (S5), the eco-friendly semi-nonflammable boards 7 are placed on both sides of the sound absorbing and insulating paper board 2, and the sound absorbing and insulating paper board 2 and a pair of the eco-friendly semi-noncombustible boards 7 are arranged through thermocompression bonding. ) to be molded at once.

As described above, when the sound absorbing and insulating paper board 2 is integrally formed with the eco-friendly semi-non-combustible boards 7 through thermocompression molding between the eco-friendly semi-non-combustible boards 7, the process can be simplified and productivity can be increased. can be raised

In particular, as will be described later, when the eco-friendly semi-non-combustible board 7 is manufactured, since it is impregnated with a composite agent having both a semi-non-combustible function, a dehumidifying function and an adhesive function, the eco-friendly semi-non-combustible board 7 contains an adhesive component. Due to this adhesive component, it can be attached to the sound absorbing and insulating paper board 2 . Therefore, it is not necessary to additionally proceed with the process of spraying or applying the adhesive, which is very helpful in improving productivity.

In the exterior film covering step (S6), the outer surface of the eco-friendly semi-non-combustible board 7, the sound absorbing and insulating paper board 2, the first accessory installation reinforcement 5 and the second accessory installation reinforcement 6 are coated with the exterior film 8. It is a process of integrally covering (covering) through. Since the material, shape, pattern, and the like of the exterior film 8 may be varied, a description thereof will be omitted.

Meanwhile, as described above, the eco-friendly semi-non-combustible board 7 may be manufactured in the form of a plate by a predetermined fiber board 10 that is eco-friendly and has a semi-non-combustible function.

The process of manufacturing the fiber board 10 may be performed by the method of FIG. 13 through the system of FIGS. 6 to 12 . This will be explained.

6 is a configuration diagram of a fiber board manufacturing system, FIG. 7 is an enlarged view of the front process of FIG. 6, FIG. 8 is an enlarged view of the composite impregnating unit, FIG. 9 is an enlarged structural diagram of an eco-friendly raw material mixing unit, FIG. 9 is a view of a state in which the opening/closing shutter is opened, FIG. 11 is an enlarged view of the drying unit, FIG. 12 is an enlarged view of the rear process of FIG. 6 , and FIG. 13 is a flowchart of a method of fabricating a fiber board.

Referring to these drawings, the fiber board 10 for making the eco-friendly semi-non-combustible board 7 according to the present embodiment may be manufactured through the system shown in FIG. 13 .

The fiber board manufacturing system includes an eco-friendly raw material mixing unit 110 , a raw material processing unit 120 , a primary cutting unit 130 , a composite impregnation unit 140 , a drying unit 150 , and a pressing unit 170 . can do. The process after the compression unit 170 is a groove forming step (S20) using the above-described punch tool.

The method of manufacturing the fiber board 10 using such a system includes an environmentally friendly raw material mixing step (S110) by the environmentally friendly raw material mixing unit 110, a raw material processing step (S120) by the raw material processing unit 120, and primary cutting. The first cutting step (S130) by the unit 130, the composite agent impregnation step (S140) by the composite agent impregnation unit 140, the drying step (S150) by the drying unit 150, and the compression unit 170 It may include a pressing step (S160) by the process, and by sequentially passing these steps, the fiber board 10 for making the eco-friendly semi-non-combustible board 7 according to the present embodiment can be manufactured.

Eco-friendly raw materials used in the eco-friendly raw material mixing step (S110) may include eco-friendly vegetable kenaf (KENAF), LM fiber (LM fiber), PET (PET) material. At this time, LM fiber and PET are equally contained to about 40%, and the remaining part can be filled with eco-friendly vegetable kenaf (KENAF). However, since the mixing ratio of these components can be changed at will, the scope of the present invention is not limited to these values. Of course, in addition to these components, recycled polyurethane or polypropylene may be added.

The eco-friendly raw material mixing unit 110 that proceeds the eco-friendly raw material blending step (S110) includes a tank 111 for a blending unit, an opening/closing shutter 112 that is provided to be opened and closed in the tank 111 for a blending unit, and a blending unit It may include a raw material stirrer 116 for agitating the raw material input into the tank 111 for.

The tank 111 for the mixing unit is a barrel or hopper-shaped structure, and forms a place where the above-mentioned raw materials are mixed. A discharge part (111a) is provided on one side of the tank 111 for the compounding unit so that the raw materials that have been mixed inside can be discharged to the outside of the tank 111 for the compounding unit. The discharge part (111a) is preferably provided in the lower part of the tank 111 for the compounding unit, but the scope of the present invention is not limited to the shape of the drawing.

The opening/closing shutter 112 is a structure that is rotatably disposed in the tank 111 for the compounding unit, and opens and closes the tank 111 for the compounding unit. That is, as in FIG. 9, the inside of the tank 111 for the compounding unit is shielded, or the inside of the tank 111 for the compounding unit is opened as shown in FIG.

A shutter driving unit 113 is provided to drive the opening/closing shutter 112 as described above. That is, the shutter driving unit 113 is connected to the opening/closing shutter 112 and serves to drive the opening/closing shutter 112 .

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

When the open signal generator 114 is applied as described above, the controller (not shown) may control the operation of the shutter driver 113 based on the signal of the open signal generator 114 . However, the open signal generator 114 is not necessarily applied to the eco-friendly raw material mixing unit 110, and the open/close shutter 112 is opened and closed through weight sensing by applying a load cell or the like instead of the open signal generator 114. could be implemented.

The tank 111 for the mixing unit may be provided with a raw material stirrer 116 for smooth mixing of the raw material input into the tank 111 for the mixing unit. That is, the raw material stirrer 116 is provided in the tank 111 for the compounding unit, and serves to stir the raw material input into the tank 111 for the compounding unit.

The raw material stirrer 116 is connected to the stirring motor 116a, the stirring motor 116a and the stirring shaft 116b disposed in the tank 111 for the compounding unit, and the stirring shaft 116b, and the stirring When the shaft 116b rotates, it may include a plurality of stirring blades 116c that are in contact with the raw material to stir the raw material. A plurality of stirring blades 116c are alternately arranged on the stirring shaft 116b, so that the efficiency of the stirring action can be increased.

Accordingly, when the stirring motor 116a is operated and the stirring shaft 116b is rotated, a plurality of stirring blades 116c connected to the stirring shaft 116b are rotated to disassemble the aggregated raw materials or mix and stir the raw materials. .

By the structure of the eco-friendly raw material mixing unit 110 as described above, the stirring process for the raw material in the tank 111 for the compounding unit in the state in which the opening and closing shutter 112 is closed as shown in FIG. 9 may proceed through the raw material stirrer 116, , when the predetermined stirring time is completed, the open signal generator 114 transmits an open signal to the controller, so that the controller can control the operation of the shutter driving unit 113 based on the signal of the open signal generator 114 . Then, as shown in Fig. 10, the opening and closing shutter 112 is opened, and the mixing is completed, the raw material can be discharged through the discharge portion (111a) of the tank 111 for the mixing unit.

Next, the raw material processing unit 120 is disposed behind the process of the eco-friendly raw material mixing unit 110, and serves to process the mixed raw material into a semi-finished product having a certain thickness. That is, in the case of the eco-friendly raw material mixing unit 110, since the raw materials are simply blended, the raw material processing unit 120 may be applied so that the blended raw materials are aggregated into a structure of a certain thickness, that is, a semi-finished product.

The raw material processing unit 120 is a plurality of first to third processing rollers 121 to pressurize the mixed raw material discharged from the discharge unit 110a of the eco-friendly raw material mixing unit 110 to form a semi-finished product of a certain thickness. 123) may be included.

The first to third processing rollers 121 to 123 are arranged in a plurality of pairs, and the pair of first to third processing rollers 121 to 123 are arranged from the eco-friendly raw material mixing unit 110 toward the first cutting unit 130 toward the first to third processing rollers 121 to 123. ) may be arranged to gradually narrow the interval between them. 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 smaller than the interval between the pair of second processing rollers 122 . The gap between the third processing rollers 123 is formed to be narrow.

Therefore, the raw materials that are simply mixed may be formed into semi-finished products with a constant thickness while passing between the first to third processing rollers 121 to 123 according to the gap difference. For reference, although the first to third processing rollers 121 to 123 are disclosed in the drawings, the number of them may be two or four or more, so the scope of the present invention is not limited to the shape of the drawings.

The raw material processing unit 120 may include a plurality of needle punches 126 . By pressing the semi-finished product with a plurality of needle punches 126, the materials constituting the semi-finished product are mixed well again to improve the quality of the board.

Next, the primary cutting unit 130 is disposed throughout the process of the composite impregnation unit 140, and serves to cut the semi-finished product formed by the raw material processing unit 120 to a size suitable for impregnation.

That is, when the raw material processing unit 120 processes a semi-finished product of a certain thickness, the semi-finished products to be processed may be continuously attached. Suitable for impregnation in the primary cutting unit 130 so that the subsequent impregnation process can be efficiently performed. cut to size

The primary cutting unit 130 is connected to the first cutter 131 for cutting semi-finished products while being driven up/down, and connected to the first cutter 131 and moves the first cutter 131 up/down. It may include a first cutter up/down driving unit 132 for (up/down) driving. Here, the first cutter up/down driving unit 132 may be a hydraulic, pneumatic, or hydraulic-pneumatic composite cylinder, but a device having a combination of a motor and a ball screw may be applied instead of a cylinder.

The roller-type conveyor 135 is applied so that the semi-finished product can be well cut when the first cutter 131 is up/down by the first cutter up/down driving unit 132 . That is, in the present embodiment, the conveyor for transferring the semi-finished product from the lower portion of the first cutter 131 may 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 composite impregnating unit 140 impregnates the semi-finished product cut to a size suitable for impregnation by the primary cutting unit 130 into the composite to have all of the semi-non-combustible function, the dehumidifying function and the adhesive function. Therefore, the composite agent is a component that includes all of the semi-flammable agent, the desiccant and the adhesive. Their component ratio may be 1:1:1.

The composite agent impregnation unit 140 is an impregnation unit table 141, and a composite agent impregnation tank 142 that is provided on the impregnation unit table 141 and the composite agent is filled therein, and the composite agent impregnation tank 142 is immersed in the semi-noncombustible. A non-powered transfer unit 143 for transferring the semi-finished product of the target, and a power transfer unit 144 that is rotatably disposed on the non-powered transfer unit 143 and transfers the semi-non-combustible target semi-finished product together with the non-powered transfer unit 143. .

A loading roller 145 and an unloading roller 146 are provided at the front end and the rear end of the non-powered transfer unit 143 , respectively. The loading roller 145 serves to supply and load the semi-non-combustible target semi-finished product to the non-powered transfer unit 143, and the unloading roller 146 serves to take out the semi-non-combustible semi-finished product from the composite impregnation tank 142. . Both the loading roller 145 and the unloading roller 146 may be powered rollers.

Accordingly, when the loading roller 145 is operated, the semi-finished product provided in the previous process may be loaded on the non-powered conveying unit 143 , and then, by the action of the power conveying unit 143 , the semi-finished product is transported while maintaining the state immersed in the composite. do. In this process, the semi-finished product may be impregnated with a composite agent, and when the impregnation is completed, it is taken out by the action of the unloading roller 146 .

Next, the drying unit 150 is disposed behind the process of the composite impregnation unit 140, and serves to dry the impregnated semi-finished product. That is, the drying unit 150 serves to dry the semi-finished product wet by the composite agent. Various types of dryers may be applied, but in the present embodiment, a microwave drying unit 150 for drying by microwaves is applied.

When the microwave drying unit 150 is applied as in this embodiment, drying proceeds from the inside of the semi-finished product in which the composite agent is absorbed, while fast drying can be implemented without burning, thereby contributing to productivity improvement.

This microwave drying unit 150 may include a dryer 151 and a microwave module 152 .

The dryer 151 forms a place where the drying operation of the impregnated semi-finished product is performed. The dryer 151 includes a drying unit inlet 151a through which the impregnated semi-finished product is introduced, and a drying unit discharge unit 151b through which the dried semi-finished product is discharged, and is disposed on a conveyor 156 to which the semi-finished product is transported. can be placed.

Dryer doors 153 and 154 that are opened when the semi-finished product is transferred and are shielded when the transfer of the semi-finished product is stopped are provided in the drying unit inlet 151a and the drying unit outlet 151b. Although the dryer doors 153 and 154 are shown very schematically in the drawing, the dryer doors 153 and 154 operate in a hermetic manner so that the drying unit inlet 151a and the drying unit outlet 151b are not opened, and the drying unit inlet 151a. And it is preferable to open and close the drying unit discharge part (151b).

The microwave module 152 is provided in the dryer 151, and serves to generate microwaves toward the semi-finished product. When a microwave is generated toward the semi-finished product through the microwave module 152, the semi-finished product can be dried quickly while generating heat from the inside due to the dielectric action by the microwave. Semi-finished products that have been dried can achieve a more rigid and solid state.

Next, the pressing unit 170 serves to press the semi-finished product so that the surface of the semi-finished product is not lifted. The compression unit 170 may include a thermocompression unit 171 and a cold compression unit 173 .

In the present embodiment, the compression unit 170 is implemented to include the thermocompression unit 171 and the cold compression unit 173, thereby increasing the compression quality to improve the quality of the product. A conveyor 175 is provided between the thermo-compression unit 171 and the cold-press unit 173 for moving semi-finished products therebetween.

The thermocompression unit 171 includes a pair of thermocompression rollers 171a for thermocompressing the semi-finished product, and a first roller driving unit 171b for driving the thermocompression roller 171a to adjust the spacing between the thermocompression rollers 171a. and a heat supply 171c for supplying heat to the thermocompression roller 171a. Heat is supplied to the thermocompression roller 171a by the heat supply 171c, and then the thermocompression rollers 171a in a state such that the distance between the thermocompression rollers 171a is adjusted by the first roller driving unit 171b. As the semi-finished product passes between them, the thermocompression process by heat may proceed.

The cold compression part 173 is disposed behind the process of the thermocompression part 171 , and serves to cold-compress the semi-finished product that has been thermally compressed. The cooling time by the cold pressing unit 173 may be different for each product.

The cold compressing unit 173 includes a pair of cold compressing rollers 173a for cold compressing the semi-finished product on which the heat compressing is completed, and a second cold compressing roller 173a to drive the cold compressing rollers 173a to adjust the interval between the cold compressing rollers 173a. It includes a roller driving unit (173b) and a cold air supply unit (173c) for supplying cold air to the cold pressing roller (173a). Cold air is supplied to the cold pressing rollers 173a by the cold air supply 173c, and then the cold pressing rollers 173a in a state such that the interval between the cold pressing rollers 173a is adjusted by the second roller driving unit 173b. As the semi-finished product, which has been thermally compressed, passes between them, the cold pressing process by cold air may proceed.

Meanwhile, in the above description, the thermocompression unit 171 and the cold compression unit 173 are illustrated and described as a roller type, but these may be applied as a press type. Accordingly, the scope of the present invention is not limited to the shape of the drawings.

According to this embodiment, which operates in the structure as described above, it can be efficiently and simply manufactured, and it can provide higher durability and sound absorption function than conventional doors, and it is particularly environmentally friendly and can provide a semi-non-combustible function. .

14 is a perspective view of an eco-friendly semi-nonflammable sound-absorbing board applied to an eco-friendly semi-non-flammable sound-absorbing door according to a second embodiment of the present invention, FIG. 15 is a cross-sectional view taken along line CC of FIG. 14, and FIG. It is a flowchart for the non-combustible sound-absorbing board manufacturing step, and FIGS. 17 to 20 are process configuration diagrams corresponding to the eco-friendly semi-non-flammable sound-absorbing board manufacturing step of FIG. 16 .

On the other hand, the eco-friendly semi-noncombustible sound-absorbing door according to this embodiment has the same structure and method as the above-described embodiment, except that the eco-friendly semi-non-combustible sound-absorbing board 20 is applied instead of the eco-friendly semi-non-combustible board 7 of the above-described embodiment. Do.

The eco-friendly semi-non-combustible sound-absorbing board 20 is an eco-friendly and semi-non-combustible board manufactured by a predetermined fiber board 10 having a plurality of grooves 11 formed at equal intervals on the plate surface for sound absorption.

At this time, the groove 11 is not a hole in a completely drilled state as before, but has a structure in which the back is blocked. Therefore, it is possible to prevent the strength of the eco-friendly semi-non-combustible sound-absorbing board 20 from weakening while providing a proper sound-absorbing function as it is.

In the process of forming the grooves 11 in the fiber board 10, if there are one or two grooves 11, manual work is also possible. However, if several hundred or more grooves 11 need to be formed in the fiber board 10 having a width/length of about 50 cm, manual work is difficult, and the following manufacturing method is required. This will be explained.

The method for manufacturing the eco-friendly semi-non-combustible sound-absorbing board 20 is as shown in FIG. 16 , a fiber board production preparation step (S10), a groove or hole forming step using a punch tool (S20), a fiber board overturning step (S30), and cutting the protrusion It may include a step (S40) and a board finishing process (S50).

The preparation step (S10) for preparing the fiber board may be performed by the system or process of FIGS. 6 to 13 of the previous embodiment. This will be described later.

The step of forming grooves or holes using a punch tool ( S20 ) is a process of simultaneously forming a plurality of grooves 11 in the fiber board 10 using a predetermined punch tool 30 . Therefore, in the present embodiment, the groove or hole forming step (S20) using the punch tool is the groove forming step (S20) using the punch tool.

In the groove forming step (S20) using the punch tool, a predetermined punch tool 30 is applied as shown in FIG. 18, and the grooves 11 can be formed at equal intervals at the same time using the punch tool 30. . The punch tool 30 has a structure in which a plurality of punch pins 31 are integrally formed on the tool body 31 . Accordingly, by connecting an actuator for up/down operation to the tool body 31 and lowering the tool body 31 once, a groove on the fiber board 10 through a plurality of punch pins 31 (11) may be formed at equal intervals at the same time.

When forming the plurality of grooves 11 as described above, the fiber board 10 should not be penetrated. At least one fifth of the thickness of the fiber board 10 should remain. In this way, when the groove forming step (S20) using the punch tool is performed, the groove 11 is formed on one side of the fiber board 10 by the pressing force of the punch tool 30, while on the opposite side the protrusion 12 is the same. takes a protruding form.

The fiber board overturning step ( S30 ) is a process of turning over the fiber board 10 in which a plurality of grooves 11 are formed as shown in FIG. 19 . This process may also be performed automatically through an inverter or the like. Of course, the fiber board overturning step (S30) may be omitted in the process.

The protrusion cutting step (S40) is a process of cutting the protrusion 12 protruding from one side of the fiber board 10 without breaking through the groove 11 forming step using the punch tool 30 as shown in FIG. 20 . . In this case, it is preferable to proceed continuously by the rotary cutter 40 continuously rotated by the motor, and only then can the productivity improvement according to the continuous process be promoted.

The board finishing step (S50) is not shown, but by finishing the outer surface, that is, cleaning the dust, powder, or foreign matter while finishing the outer surface, such as abrading the protruding part, to complete the eco-friendly semi-non-combustible sound-absorbing board 20 is a process to

Hereinafter, look at the process of manufacturing the eco-friendly semi-noncombustible sound-absorbing board (20).

First, as shown in FIG. 17 , a predetermined fiber board 10 having an eco-friendly and semi-non-combustible function is manufactured and prepared.

Next, as shown in FIG. 18 , a plurality of grooves 11 are formed in the fiber board 10 using a predetermined punch tool 30 . When forming the plurality of grooves 11 as described above, the fiber board 10 should not be penetrated. At least one fifth of the thickness of the fiber board 10 should remain. When this process is performed, the groove 11 is formed on one side of the fiber board 10 by the pressing force of the punch tool 30, while the protrusion 12 protrudes on the opposite side.

Next, as shown in FIG. 19 , the fiber board 10 in which the plurality of grooves 11 are formed is turned over. This process may also be performed automatically through an inverter or the like.

Next, as shown in FIG. 20 , the protrusion 12 protruding from one side of the fiber board 10 is cut so as not to be pierced through the step of forming the groove 11 using the punch tool 30 . In this case, it is preferable to proceed by the rotary cutter 40 continuously rotated by the motor.

Then, by finishing the outer surface, that is, cleaning the dust, powder, or foreign matter, while the protruding part is worn, etc., the outer surface may be finished to complete the eco-friendly semi-non-combustible sound-absorbing board 20 .

21 is a flowchart of an environmentally friendly semi-non-flammable sound absorbing board manufacturing step according to a third embodiment of the present invention, and FIGS. 22 and 23 are process configuration diagrams corresponding to the manufacturing method of FIG. 21 .

Referring to these drawings, the eco-friendly semi-non-combustible sound-absorbing board manufacturing step according to this embodiment is a fiber board manufacturing preparation step (S100), a groove or hole forming step using a punch tool (S200), an eco-friendly reinforcing sheet attachment step (S300) and a board finishing process step (S400).

On the other hand, in the present embodiment, the step (S200) of forming a groove or hole using a punch tool is different from the above-described embodiment, in which a plurality of holes or holes are formed on the fiber board 10a at equal intervals using the punch tool 30 as shown in FIG. 22 . This is a process of simultaneously forming the holes 11a and holes. Therefore, in the present embodiment, the groove or hole forming step ( S200 ) using the punch tool is the hole forming step ( S200 ) using the punch tool.

The eco-friendly reinforcing sheet attaching step (S300) is a process after the hole forming step (S200) using a punch tool. That is, the eco-friendly reinforcing sheet attaching step (S300) is a process of attaching an eco-friendly reinforcing sheet 50 that is thinner than the fiber board 10a but allows air to pass through on one surface of the fiber board 10a having the hole 11a as shown in FIG. 23 . to be. After attaching the eco-friendly reinforcing sheet 50 as described above, the final product may be manufactured as if a groove is formed as in the above-described embodiment. The eco-friendly reinforcing sheet 50 may also be made thin by including at least one of eco-friendly vegetable kenaf (KENAF), LM fiber (LM fiber), and PET (PET) materials.

On the other hand, when making the fiber board 10a as described above, since the adhesive component is included, when performing the eco-friendly reinforcing sheet attachment step (S300), place the eco-friendly reinforcing sheet 50 on one side of the fiber board 10a and use a thermocompression method. When the pressure is applied, the adhesive component is expressed again by heat, and the eco-friendly reinforcing sheet 50 may be attached to one surface of the fiber board 10a as it is.

Therefore, in the case of this embodiment, there is an advantage that the whole process can be simplified because the process of applying the adhesive can be omitted. In particular, in the present embodiment, since the eco-friendly reinforcing sheet 50 is attached to the fiber board 10a by heat, a great advantage of being eco-friendly can be provided.

For reference, considering that a lot of harmful substances such as formaldehyde are generated in boards sold in the market, it will be said that the eco-friendly semi-non-combustible sound-absorbing board 20a can provide many advantages as in this embodiment. .

The board finishing step (S400) is an eco-friendly semi-non-combustible sound-absorbing board (20a) by finishing the outer surface as described above, that is, by finishing the outer surface such as abrading the protruding part while cleaning dust, powder, or foreign matter It is a process of completion Even if this method is applied, the effect of the present invention can be provided.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

1: Eco-friendly semi-non-flammable sound-absorbing door 2: Sound-absorbing and insulating paper board
4: Attached to the handle 5: Reinforcing bar for installing the first attachment
6: Reinforcing bar for installing the second accessory 7: Eco-friendly semi-non-combustible board
8: exterior film

Claims (19)

Eco-friendly semi-non-combustible board manufactured by a predetermined fiber board having an eco-friendly and semi-non-combustible function and spaced apart from each other; and
Eco-friendly semi-non-combustible sound-absorbing door, characterized in that it includes a sound-absorbing and insulating paper board made of paper, which has a sound absorbing and insulating function, and is integrally formed with the eco-friendly semi-non-combustible boards through thermocompression bonding between the eco-friendly semi-non-combustible boards. . According to claim 1,
The eco-friendly semi-non-combustible sound-absorbing door, which is disposed between the eco-friendly semi-non-combustible boards and forms the same plane as the sound absorbing and insulating paper board, and further comprises a reinforcing bar for installing the first accessory that forms a place where the door handle part is installed. . 3. The method of claim 2,
Eco-friendly semi-non-combustible sound-absorbing door, which is disposed at a different position from the first accessory installation reinforcing bar, and further comprises a second accessory installation reinforcing bar forming a place where the hinge part of the door is installed. 4. The method of claim 3,
The eco-friendly semi-non-combustible sound-absorbing door, characterized in that it comprises an exterior film integrally covering the outer surfaces of the eco-friendly semi-noncombustible board, the sound absorbing and insulating paper board, the first accessory installation reinforcing bar, and the second accessory installation reinforcing bar. According to claim 1,
The sound absorbing and insulating paper board,
first and second sound absorbing and insulating plates disposed in parallel to be spaced apart from each other; and
and a sound-insulating connection wall connecting the first and second sound absorbing and insulating plates, provided with a plurality of sound absorbing and insulating spaces to enable sound absorbing or insulating, and formed to be larger than the thickness of the first and second sound absorbing and insulating plates. Eco-friendly semi-non-combustible sound-absorbing door. According to claim 1,
The eco-friendly semi-non-combustible sound-absorbing door, characterized in that the eco-friendly semi-non-combustible board is an eco-friendly semi-non-combustible sound-absorbing board in which a plurality of grooves are formed at equal intervals on the plate surface for sound absorption. An eco-friendly semi-non-combustible board manufacturing step of manufacturing an eco-friendly semi-non-combustible board manufactured by a predetermined fiber board having an eco-friendly and semi-non-combustible function and spaced apart from each other;
A sound absorbing and insulating paper board manufacturing step of manufacturing a sound absorbing and insulating paper board made of paper but having a sound absorbing and insulating function; and
and a thermocompression bonding step of disposing the eco-friendly semi-non-combustible boards on both sides of the sound absorbing and insulating paper board and forming the sound absorbing and insulating paper board and a pair of the eco-friendly semi-noncombustible boards at once through thermocompression bonding. Eco-friendly semi-non-combustible sound-absorbing door manufacturing method. 8. The method of claim 7,
Before performing the thermocompression bonding step,
A first accessory installation reinforcing bar arrangement step of arranging a first accessory installation reinforcing bar disposed between the eco-friendly semi-non-combustible boards and forming the same plane as the sound absorbing and insulating paper board and forming a place where the door handle part is installed. Eco-friendly semi-non-flammable sound-absorbing door manufacturing method, characterized in that. 9. The method of claim 8,
The first accessory installation reinforcing bar is disposed at a different position, and the second accessory installation reinforcing bar arrangement step of disposing a second accessory installation reinforcing bar constituting a place where the hinge part of the door is installed is eco-friendly, characterized in that it further comprises A method for manufacturing a non-combustible sound-absorbing door. 10. The method of claim 9,
An external film covering step of integrally covering the outer surfaces of the eco-friendly semi-noncombustible board, the sound absorbing and insulating paper board, the first accessory installation reinforcing bar and the second accessory installation reinforcing member through an exterior film, characterized by further comprising An eco-friendly semi-non-flammable sound-absorbing door manufacturing method. 8. The method of claim 7,
The step of manufacturing the fiber board in the eco-friendly semi-non-combustible board manufacturing step,
an eco-friendly raw material mixing step of blending a predetermined eco-friendly raw material at a predetermined mixing ratio through an eco-friendly raw material mixing unit;
Raw material processing step of processing the blended raw material into a semi-finished product having a certain thickness by using a raw material processing unit;
a first cutting step of first cutting the semi-finished product to a size suitable for impregnation using a first cutting unit;
A composite agent impregnation step of impregnating the first cut semi-finished product into the composite agent through a composite agent impregnation unit containing all of the composite agent, desiccant and adhesive;
A drying step of drying the impregnated semi-finished product with a microwave-type drying unit; and
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that it comprises a pressing step of pressing the semi-finished product through a pressing unit so that the outer surface of the semi-finished product is not lifted. 8. The method of claim 7,
The eco-friendly semi-non-combustible board is an eco-friendly semi-non-combustible sound-absorbing board in which a plurality of grooves are formed at equal intervals on the plate surface for sound absorption,
The eco-friendly semi-non-combustible board manufacturing step is an eco-friendly semi-noncombustible sound-absorbing door manufacturing method, characterized in that the eco-friendly semi-non-combustible sound-absorbing board manufacturing step for manufacturing the eco-friendly semi-non-combustible sound-absorbing board. 13. The method of claim 12,
The eco-friendly semi-non-combustible sound-absorbing board manufacturing step is,
A fiber board production preparation step of preparing and preparing a predetermined fiber board having an eco-friendly and semi-non-combustible function; and
Eco-friendly semi-non-combustible sound-absorbing door manufacturing, characterized in that it comprises a groove or hole forming step using a punch tool for simultaneously forming a plurality of grooves or holes in the fiber board using a predetermined punch tool Way. 14. The method of claim 13,
The step of forming a groove or hole using the punch tool is,
Eco-friendly characterized in that it is a groove forming step using a punch tool for forming the plurality of grooves at equal intervals in the fiber board using the punch tool in which a plurality of punch pins are integrally formed on the tool body. A method for manufacturing a semi-non-combustible sound-absorbing door. 15. The method of claim 14,
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that it further comprises a protrusion cutting step of cutting the protrusion protruding from one side of the fiber board without breaking through the groove forming step using the punch tool. 16. The method of claim 15,
Before performing the protrusion cutting step,
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that it further comprises the step of overturning the fiber board overturning the fiber board in which the plurality of grooves are formed. 17. The method of claim 16,
After performing the protrusion cutting step,
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that it further comprises a board finishing step of completing the eco-friendly semi-non-combustible sound-absorbing board by finishing the outer surface. 14. The method of claim 13,
The step of forming a groove or hole using the punch tool is,
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that the hole forming step using the punch tool for forming the plurality of holes (holes) at equal intervals in the fiber board using the punch tool. 19. The method of claim 18,
After performing the hole forming step using the punch tool,
Eco-friendly semi-non-combustible sound-absorbing door manufacturing method, characterized in that it further comprises an eco-friendly reinforcing sheet attaching step of attaching an eco-friendly reinforcing sheet that is thinner than the fiber board and allows air to pass through to one surface of the fiber board in which the hole is formed.

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