Bending deformation preventing type carbonized wood cutting board and manufacturing method thereof

Abstract

The present invention relates to a warping deformation-preventing carbonized wood cutting board that enables relatively rapid mass production by utilizing the carbonization of wood, ensures high strength and water resistance, and prevents warping deformation. The carbonized wood cutting board comprises: a carbonized cutting board body made of wood, formed in a plate shape with the wood grain exposed in a horizontal direction on the upper and lower surfaces, and formed by carbonization during high-temperature heat treatment; a pair of side insertion grooves formed in the front-rear direction at the center of both sides of the carbonized cutting board body perpendicular to the wood grain of the carbonized cutting board body, and formed to be recessed inward; and side anti-warping members that are inserted into and attached to the side insertion grooves, are formed of wood material, and support both ends of the carbonized cutting board body to prevent warping deformation of the carbonized cutting board body.

Description

Technology Field

[0001] The present invention relates to a cutting board, and more specifically, to a warping deformation-preventing carbonized wood cutting board and a method for manufacturing the same, which enables relatively rapid mass production by utilizing the carbonization of wood, ensures high strength and water resistance, and prevents warping deformation. Background Technology

[0003] Generally, a cutting board is a cooking utensil that serves to support food ingredients from underneath when cutting them with a knife during cooking, and is typically made using wood such as a single wide piece of solid wood or general-purpose plastic materials.

[0004] While plastic cutting boards offer the advantage of being able to be produced in various shapes and colors, wooden cutting boards are in much higher demand and are widely used because they provide a pleasant cutting feel and are hygienic regarding foreign substances.

[0005] Such wooden cutting boards, especially those made of solid wood, use wood that has been dried under pressure over several months to several years to prevent deformation even after long-term use.

[0006] However, the conventional technology described above had the following problems.

[0007] Conventional wooden cutting boards made from solid wood required a long drying process, resulting in very low productivity and the problem of them being sold as high-priced products.

[0008] In addition, wooden cutting boards that have not undergone a long drying process have problems such as easily bending and warping deformation during use, and low strength and water resistance. Prior art literature

[0010] Registered Patent No. 10-2290706 “Cutting Board” (August 11, 2021) The problem to be solved

[0011] Accordingly, the present invention has been devised to resolve the various problems of the prior art as described above.

[0012] The objective of the present invention is to provide a warping deformation-preventing carbonized wood cutting board and a method for manufacturing the same, which enables relatively rapid mass production using the carbonization of wood, ensures high strength and water resistance, and prevents warping deformation. means of solving the problem

[0014] To achieve the above objectives, the “carbonized wood cutting board with a bending deformation prevention type” according to the present invention comprises: a carbonized cutting board body made of wood, formed in a plate shape with the wood grain exposed in a horizontal direction on the upper and lower surfaces, and formed by carbonizing during high-temperature heat treatment; a pair of lateral insertion grooves formed in the front-rear direction at the center of both sides of the carbonized cutting board body perpendicular to the wood grain of the carbonized cutting board body, and formed to be recessed inward; and lateral bending prevention members that are inserted into and attached to the lateral insertion grooves, are formed of wood material, and support both ends of the carbonized cutting board body to prevent bending deformation of the carbonized cutting board body.

[0016] In addition, the two anti-bending members of the “anti-bending carbonized wood cutting board” according to the present invention further include a handle portion formed to protrude outward from the two anti-bending members.

[0018] In addition, the “bending deformation prevention type carbonized wood cutting board” according to the present invention is characterized by further comprising: a pair of front and rear insertion grooves formed horizontally on the front and rear surfaces of the carbonized cutting board body and formed to be recessed inward; and a front and rear bending prevention member that is inserted into and attached to the front and rear insertion grooves, is formed of a wood material, and supports the front and rear ends of the carbonized cutting board body to prevent bending deformation of the carbonized cutting board body.

[0020] Meanwhile, to achieve the above objective, the “method for manufacturing a carbonized wood cutting board that prevents bending deformation” according to the present invention comprises: a wood board preparation step of preparing a plurality of wood boards by cutting wood in the direction of the wood grain so that the horizontal wood grain is exposed on the upper and lower surfaces; a rigid fixing step of inserting a metal square tube between the wood boards and rigidly fixing the entire wood board together with the square tube multiple times using a metal band; an initial weight calculation step of loading the entire rigidly fixed wood board onto a trolley, placing the trolley into a heat treatment chamber, and then measuring the total weight of the wood boards to calculate the total initial weight of the wood boards; and a carbonization treatment step of sealing the heat treatment chamber, forming a vacuum inside the heat treatment chamber, and then injecting superheated steam into the heat treatment chamber to maintain a temperature of 150 to 200 degrees Celsius for 2 to 4 hours to carbonize the wood boards. The method is characterized by comprising: a repeating treatment step in which the total weight of the wood board is measured during the carbonization treatment, and the carbonization treatment is repeated by comparing the measured total weight with the initial weight so that the moisture content of the wood board becomes 4% to 12%; a natural cooling step in which, when it is confirmed that the moisture content of the wood board is 4% to 12%, the injection of superheated steam is blocked and the internal temperature of the heat treatment chamber is naturally cooled until it reaches room temperature; a carbonized cutting board forming step in which the carbonized and cooled wood board is removed from the heat treatment chamber, the rigid fixing is released, the outer surface of the carbonized wood board is processed, and natural oil is applied to form a carbonized cutting board body; and a bending prevention member installation step in which insertion grooves are formed on both sides and / or the front and rear surfaces of the carbonized cutting board body, a bending prevention member is manufactured and prepared, and the bending prevention member is inserted into the insertion groove and attached.

[0022] In addition, the carbonization treatment step of the “method for manufacturing a carbonized wood cutting board that prevents bending deformation” according to the present invention comprises: a wood steaming process in which, after carbonizing treatment is performed by maintaining a temperature of 150 to 200 degrees Celsius with superheated steam for 2 to 4 hours, superheated steam of 100 to 120 degrees Celsius is injected into a heat treatment chamber and maintained for 1 to 2 hours to lower the internal temperature of the heat treatment chamber while steaming the wood board; a moisture removal process in which, upon completion of the wood steaming process, the vacuum of the heat treatment chamber is released and the air inside the heat treatment chamber is discharged to the outside to remove internal moisture; an internal moisture discharge process in which, upon completion of the moisture removal process, microwaves are irradiated into the wood board inside the heat treatment chamber for 1 to 2 hours to heat the interior of the wood board and discharge internal moisture to the outside; an internal air circulation process in which an air circulation fan inside the heat treatment chamber is operated to circulate internal air while the internal moisture discharge process is being performed; and the internal moisture The method further includes an internal air heating process in which a heater inside the heat treatment chamber is operated to heat the internal air while the discharge process is being performed, and a secondary moisture removal process in which the air inside the heat treatment chamber is discharged to the outside to remove internal moisture when the internal moisture discharge process is completed, and in the step of installing the anti-bending member, the anti-bending member is characterized by being manufactured by cutting dried wood to a size that protrudes outward while being inserted into the insertion groove to form the anti-bending member, and applying a transparent acrylic resin to the outer surface of the cut anti-bending member and drying it. Effects of the invention

[0024] The present invention, as described above, enables relatively rapid mass production by utilizing the carbonization of wood, ensures high strength and water resistance, prevents bending deformation, and thereby has the effect of significantly improving the productivity of cutting boards and ensuring a long lifespan. Brief explanation of the drawing

[0026] FIG. 1 is a stereoscopic photograph of a carbonized wood cutting board according to the present invention. FIG. 2 is a planar photograph of a carbonized wood cutting board according to the present invention, FIG. 3 is a side enlarged photograph of a carbonized wood cutting board according to the present invention, FIG. 4 is a schematic enlarged cross-sectional view of a key part of a carbonized wood cutting board according to the present invention, FIG. 5 is a schematic enlarged side cross-sectional view of a key part of a carbonized wood cutting board according to another embodiment of the present invention, FIG. 6 is a step diagram showing a method for manufacturing a carbonized wood cutting board according to the present invention. Specific details for implementing the invention

[0027] Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings. However, it should be understood that the present invention may be implemented in a number of different forms and is not limited to the described embodiments.

[0029] FIGS. 1 to 4 are photographs and drawings of a carbonized wood cutting board according to the present invention. As shown herein, the carbonized wood cutting board according to the present invention comprises a carbonized cutting board body (10) formed by carbonization treatment, two-sided insertion grooves (20) formed to be recessed on both sides of the carbonized cutting board body (10), and two-sided anti-bending members (30) inserted into and attached to the two-sided insertion grooves (20).

[0030] The above-mentioned carbonized cutting board body (10) is made of wood and formed into a plate shape with the wood grain exposed horizontally on the upper and lower surfaces, and is formed by carbonizing through high-temperature heat treatment, and has a structure in which it is manufactured relatively quickly through carbonization treatment and has improved rigidity and water resistance.

[0031] That is, the above-mentioned carbonized cutting board body (10) is properly dried and heat-treated by carbonization treatment of the wood itself, particularly by semi-carbonization treatment, and has significantly improved rigidity and water resistance and a dark brown color with high aesthetic appeal.

[0032] The carbonization process of the above-mentioned carbonized cutting board body (10) is described in detail in the following method for manufacturing a carbonized wooden cutting board.

[0033] In addition, although the carbonized cutting board body (10) is shown in the drawing as a square plate shape, it is not limited thereto and can be manufactured in various shapes such as a circular plate shape or a polygonal plate shape. For example, if the shape of the carbonized cutting board body (10) is circular, the two-sided insertion grooves (20) and the two-sided bending prevention members (30) can be formed in an arc shape.

[0034] The above-mentioned two-sided insertion grooves (20) are formed in the front-rear direction at the center of both sides of the carbonized cutting board body (10) perpendicular to the wood grain of the carbonized cutting board body (10) and are formed to be recessed inward, and are provided as a pair, serving to provide a place where the two-sided anti-bending members (30) are attached with the insertion of the above-mentioned two-sided bending members (30) on both sides of the carbonized cutting board body (10).

[0035] The above-mentioned two-sided anti-bending members (30) are inserted into and attached to the two-sided insertion grooves (20) and are formed of wood material, and support both ends of the carbonized cutting board body (10) to prevent bending deformation that occurs in the direction of the wood grain of the carbonized cutting board body (10).

[0036] The above-mentioned two-sided anti-bending member (30) further includes a handle portion (31) formed to protrude outward from the two-sided anti-bending member (30). The handle portion (31) is integrally formed to protrude outward from the two-sided anti-bending member (30) and serves to provide a part that a user can grasp with their hand.

[0038] FIG. 5 is a schematic enlarged side cross-sectional view of a key part of a carbonized wood cutting board according to another embodiment of the present invention. As shown in the figure, the carbonized wood cutting board according to another embodiment of the present invention further includes a front-rear insertion groove (40) formed to be recessed on the front-rear surface of the carbonized cutting board body (10), and a front-rear bending prevention member (50) inserted into and attached to the front-rear insertion groove (40).

[0039] The above front and rear insertion grooves (40) are formed horizontally on the front and rear surfaces of the carbonized cutting board body (10) and are formed to be recessed inward, and are provided as a pair, serving to provide a place where the front and rear bending prevention member (50) is attached with the insertion of the above front and rear bending prevention member (50) on the front and rear surfaces of the carbonized cutting board body (10).

[0040] The above front and rear bending prevention member (50) is inserted into and attached to the front and rear insertion groove (40) and is formed of wood material, and supports the front and rear ends of the carbonized cutting board body (10) to further prevent bending deformation that occurs in the direction of the wood grain of the carbonized cutting board body (10).

[0042] FIG. 6 is a step diagram showing a method for manufacturing a carbonized wood cutting board according to the present invention. As described herein, the method for manufacturing a carbonized wood cutting board according to the present invention comprises a wood board preparation step (S10) of preparing a wood board by cutting wood such as raw wood, a rigid fixing step (S20) of rigidly fixing a plurality of the wood boards together, an initial weight calculation step (S30) of placing the wood boards into a heat treatment chamber and calculating the total initial weight of the wood boards, a carbonization treatment step (S40) of carbonizing the wood boards in the heat treatment chamber, a repetitive treatment step (S50) of repeatedly performing the carbonization treatment in the heat treatment chamber, a natural cooling step (S60) of naturally cooling the interior of the heat treatment chamber, a carbonized cutting board formation step (S70) of processing the heat-treated wood boards to form a carbonized cutting board body, and a bending prevention member installation step (S80) of installing a bending prevention member on the carbonized cutting board body.

[0043] The above-mentioned wood panel preparation step (S10) refers to a step of preparing multiple wood panels by cutting wood, such as solid wood, in the direction of the wood grain so that the horizontal wood grain is exposed on the upper and lower surfaces. The above-mentioned wood panel preparation step (S10) serves to prepare multiple wood panels by cutting the wood so that carbonized cutting board bodies can be mass-produced.

[0044] The above rigid fixing step (S20) refers to a step of inserting a metal square tube between the wooden boards and rigidly fixing the entire wooden board together with the square tube multiple times using a metal band. The above rigid fixing step (S20) serves to prevent the wooden boards from bending or deforming during high-temperature heat treatment, i.e., carbonization treatment, by rigidly fixing multiple wooden boards as a single unit.

[0045] The above initial weight calculation step (S30) refers to a step of calculating the total initial weight of the wood board by measuring the total weight of the wood board after loading the entire rigidly fixed wood board onto a trolley and placing the trolley into a heat treatment chamber. The above initial weight calculation step (S30) serves to secure basic data that can confirm the degree of reduction in the moisture content of the wood board after carbonization treatment by measuring the total weight of the wood board having a moisture content of at least 20% before carbonization treatment.

[0046] Here, the total weight of the wooden board is calculated by subtracting the weight of the bogie, square tube, and metal band from the total weight of the bogie on which the wooden board is loaded in a rigidly fixed state.

[0047] The carbonization treatment step (S40) above refers to a step of carbonizing the wood board by sealing the heat treatment chamber, forming a vacuum inside the heat treatment chamber, and then injecting superheated steam into the heat treatment chamber and maintaining it at a temperature of 150 to 200 degrees Celsius for 2 to 4 hours.

[0048] The above carbonization treatment step (S40) carbonizes the wood board with superheated steam to improve the strength and water resistance of the wood board and to allow it to dry quickly, while simultaneously giving it a dark brown color with high aesthetic appeal.

[0049] The above-mentioned carbonization treatment step (S40) comprises: a wood steaming process in which, after carbonizing treatment by maintaining a temperature of 150 to 200 degrees Celsius with superheated steam for 2 to 4 hours, superheated steam of 100 to 120 degrees Celsius is injected into a heat treatment chamber and maintained for 1 to 2 hours to lower the internal temperature of the heat treatment chamber while steaming the wood board; a moisture removal process in which, upon completion of the wood steaming process, the vacuum of the heat treatment chamber is released and the air inside the heat treatment chamber is discharged to the outside to remove internal moisture; an internal moisture discharge process in which, upon completion of the moisture removal process, microwaves are irradiated into the wood board inside the heat treatment chamber for 1 to 2 hours to heat the interior of the wood board and discharge internal moisture to the outside; an internal air circulation process in which an air circulation fan inside the heat treatment chamber is operated to circulate internal air while the internal moisture discharge process is being performed; and, while the internal moisture discharge process is being performed, the inside of the heat treatment chamber It further includes an internal air heating process in which an internal air is heated by operating a heater, and a secondary moisture removal process in which the internal air of the heat treatment chamber is discharged to the outside to remove internal moisture when the internal moisture discharge process is completed.

[0050] The above wood steaming process involves steaming carbonized wood panels with superheated steam to remove or attenuate internal stress, thereby preventing or reducing bending or deformation caused by internal stress.

[0051] The above moisture removal process serves to expel moisture from inside the heat treatment chamber to the outside after the steaming of the wood board is completed, thereby creating an environment where moisture from the wood board resulting from subsequent processing is rapidly discharged.

[0052] The aforementioned internal moisture discharge process involves irradiating the wooden board with microwaves to heat the moisture within the board, allowing it to be rapidly discharged to the outside. By expelling residual moisture from the interior of the wooden board through this process, the drying of the board is achieved uniformly throughout, thereby shortening the drying time and further improving its rigidity and water resistance.

[0053] The above internal air circulation process serves to prevent the discharged moisture from seeping back into the interior of the wood board by allowing the moisture discharged to the outside of the wood board by microwaves to be rapidly transferred from the outer surface of the wood board into the interior of the heat treatment chamber.

[0054] The above internal air heating process heats the internal air of the heat treatment chamber so that moisture discharged to the outside of the wood board by microwaves can rapidly evaporate from the outer surface of the wood board and be rapidly transferred to the internal air of the heat treatment chamber, thereby preventing the discharged moisture from seeping back into the interior of the wood board.

[0055] The above secondary moisture removal process is designed to quickly expel moisture from the wood panels discharged during the above internal air circulation and internal air heating processes to the outside, thereby allowing the moisture from the wood panels to be expelled more quickly during subsequent processing.

[0056] The above process is repeated each time carbonization treatment is performed by maintaining a temperature of 150 to 200 degrees Celsius with superheated steam for 2 to 4 hours.

[0057] The above-mentioned repeating process step (S50) refers to a step of measuring the total weight of the wood board during the carbonization process and comparing the measured total weight with the initial weight to repeat the carbonization process so that the moisture content of the wood board becomes 4% to 12%. The above-mentioned repeating process step (S50) serves to heat-treat the wood board at a high temperature until the moisture content desired or intended by the worker is reached by repeating the carbonization process.

[0058] The above natural cooling step (S60) refers to a step in which, when it is confirmed that the moisture content of the wood board is 4% to 12%, the injection of superheated steam is blocked and the internal temperature of the heat treatment chamber is naturally cooled until it reaches room temperature. The above natural cooling step (S60) typically involves leaving the heat treatment chamber unheated to allow the wood board to cool slowly and naturally, which serves to prevent deformation or splitting of the wood board due to rapid cooling.

[0059] The carbonized cutting board forming step (S70) refers to the step of removing the carbonized and cooled wooden board from the heat treatment chamber, releasing the rigid fixing, processing the outer surface of the carbonized wooden board, and applying natural oil to form the carbonized cutting board body. The carbonized cutting board forming step (S70) serves to manufacture the carbonized cutting board body by processing the wooden board. At this time, the carbonized wooden board may be cut to form a carbonized cutting board body of a specific shape.

[0060] The above step of installing the anti-bending member (S80) refers to the step of forming insertion grooves on both sides and / or the front and rear surfaces of the carbonized cutting board body, manufacturing and preparing the anti-bending member, and inserting and attaching the anti-bending member into the insertion grooves. The above step of installing the anti-bending member (S80) is to install the anti-bending member around the side perimeter of the carbonized cutting board body so that bending deformation caused by bending in the direction of the wood grain of the carbonized cutting board body is properly prevented.

[0061] In the above step of installing the anti-bending member (S80), the anti-bending member is manufactured by cutting dried wood to a size that protrudes outward while being inserted into the insertion groove, forming the anti-bending member, applying a transparent acrylic resin to the outer surface of the cut anti-bending member, and drying it. Here, the acrylic resin plays a role in significantly improving the rigidity and water resistance of the anti-bending member. It is more preferable to apply the acrylic resin repeatedly in multiple layers to the outer surface of the anti-bending member to improve rigidity and water resistance.

[0062] In addition, the above-mentioned anti-bending member has a color different from the color of the above-mentioned carbonized cutting board body, thereby improving the overall aesthetic appeal of the carbonized wood cutting board.

[0063] Furthermore, various types of raw wood, such as domestic and imported raw wood, may be used for the production of the above-mentioned wooden board. In particular, small-diameter domestic raw wood can be appropriately used for the production of the cutting board according to the present invention.

[0064] The carbonized wood cutting board constructed and manufactured in this manner is a groundbreaking invention that enables relatively rapid mass production by utilizing the carbonization of wood, ensures high strength and water resistance, and prevents bending deformation.

[0066] Although preferred embodiments of the present invention have been described above, the present invention may use various variations, modifications, and equivalents. It is clear that the present invention can be applied in the same way by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

[0067] Meanwhile, although specific embodiments have been described in the detailed description of the present invention, it will be obvious to those skilled in the art that various modifications are possible within the scope of the present invention. Explanation of the symbols

[0069] 10 : Carbonized cutting board body 20: Bilateral insertion grooves 30 : Both sides anti-bending members 31: Handle part 40 : Front and rear insertion groove 50 : Front and rear bending prevention member

Claims

Claim 1 A carbonized cutting board body (10) made of wood, formed in a plate shape with the wood grain exposed horizontally on the upper and lower surfaces, and formed by carbonization during high-temperature heat treatment; a pair of side insertion grooves (20) formed in the front-rear direction at the center of both sides of the carbonized cutting board body (10) perpendicular to the wood grain of the carbonized cutting board body (10), and formed to be recessed inward; and side bending prevention members (30) that are inserted into and attached to the side insertion grooves (20), are formed of wood material, and support both ends of the carbonized cutting board body (10) to prevent bending deformation of the carbonized cutting board body (10); A pair of front and rear insertion grooves (40) formed horizontally on the front and rear surfaces of the carbonized cutting board body (10) and formed to be recessed inward; and a front and rear bending prevention member (50) that is inserted into and attached to the front and rear insertion grooves (40), is formed of a wood material, and supports the front and rear ends of the carbonized cutting board body (10) to prevent bending deformation of the carbonized cutting board body (10); wherein the two bending prevention members (30) further include a handle portion (31) formed to protrude outwardly from the two bending prevention members (30); and the carbonized cutting board body (10) comprises a wood panel preparation step of preparing a plurality of wood panels by cutting wood in the direction of the wood grain so that the horizontal wood grain is exposed on the upper and lower surfaces; A rigid fixing step of inserting a metal square tube between the wooden boards and rigidly fixing the entire wooden board together with the square tube multiple times using a metal band; an initial weight calculation step of loading the entire rigidly fixed wooden board onto a trolley, placing the trolley into a heat treatment chamber, and then measuring the total weight of the wooden board to calculate the total initial weight of the wooden board; a carbonization treatment step of sealing the heat treatment chamber, forming a vacuum inside the heat treatment chamber, and then injecting superheated steam into the heat treatment chamber to maintain a temperature of 150 to 200 degrees Celsius for 2 to 4 hours to carbonize the wooden board;A warping deformation-preventing carbonized wooden cutting board characterized by being manufactured by comprising: a repeating treatment step of measuring the total weight of the wooden board during the carbonization treatment and repeating the carbonization treatment by comparing the measured total weight with the initial weight so that the moisture content of the wooden board becomes 4% to 12%; a natural cooling step of blocking the injection of superheated steam and naturally cooling the wood board until the internal temperature of the heat treatment chamber reaches room temperature when it is confirmed that the moisture content of the wooden board is 4% to 12%; a carbonized cutting board forming step of removing the carbonized and cooled wooden board from the heat treatment chamber, releasing the rigid fixing, processing the outer surface of the carbonized wooden board, and applying natural oil to form a carbonized cutting board body; and a warping prevention member installation step of forming insertion grooves on both sides and the front and rear surfaces of the carbonized cutting board body, manufacturing and preparing a warping prevention member, and inserting and attaching the warping prevention member into the insertion grooves. Claim 2 delete Claim 3 delete Claim 4 A wood panel preparation step (S10) for preparing a number of wood panels by cutting the wood in the direction of the wood grain so that the horizontal wood grain is exposed on the upper and lower surfaces; A rigid fixing step (S20) of inserting a metal square tube between the wooden boards and rigidly fixing the entire wooden board together with the square tube multiple times using a metal band; an initial weight calculation step (S30) of loading the entire rigidly fixed wooden board onto a trolley, placing the trolley into a heat treatment chamber, and then measuring the total weight of the wooden board to calculate the total initial weight of the wooden board; a carbonization treatment step (S40) of sealing the heat treatment chamber, forming a vacuum inside the heat treatment chamber, injecting superheated steam into the heat treatment chamber, and maintaining the temperature at 150 to 200 degrees Celsius for 2 to 4 hours to carbonize the wooden board; a repetitive treatment step (S50) of measuring the total weight of the wooden board during the carbonization treatment, comparing the measured total weight with the initial weight, and repeating the carbonization treatment so that the moisture content of the wooden board becomes 4% to 12%; and of the wooden board A method for manufacturing a carbonized wood cutting board that prevents bending deformation, characterized by comprising: a natural cooling step (S60) in which, when it is confirmed that the moisture content is 4% to 12%, the injection of superheated steam is blocked and the internal temperature of the heat treatment chamber is naturally cooled until it reaches room temperature; a carbonized cutting board forming step (S70) in which the carbonized and cooled wood board is removed from the heat treatment chamber, the rigid fixing is released, the outer surface of the carbonized wood board is processed, and natural oil is applied to form a carbonized cutting board body; and a bending prevention member installation step (S80) in which insertion grooves are formed on both sides and / or the front and rear surfaces of the carbonized cutting board body, a bending prevention member is manufactured and prepared, and the bending prevention member is inserted into the insertion grooves and attached. Claim 5 In claim 4, the carbonization treatment step (S40) comprises: a wood steaming process in which, after carbonizing treatment by maintaining superheated steam at 150 to 200 degrees Celsius for 2 to 4 hours, superheated steam at 100 to 120 degrees Celsius is injected into the heat treatment chamber and maintained for 1 to 2 hours to lower the internal temperature of the heat treatment chamber while steaming the wood board; a moisture removal process in which, upon completion of the wood steaming process, the vacuum of the heat treatment chamber is released and the air inside the heat treatment chamber is discharged to the outside to remove internal moisture; an internal moisture discharge process in which, upon completion of the moisture removal process, microwaves are irradiated into the wood board inside the heat treatment chamber for 1 to 2 hours to heat the interior of the wood board and discharge internal moisture to the outside; an internal air circulation process in which an air circulation fan inside the heat treatment chamber is operated to circulate internal air while the internal moisture discharge process is being performed; and, during the internal moisture discharge process, the heat treatment chamber A method for manufacturing a carbonized wood cutting board that prevents bending deformation, characterized in that, in the step of installing the bending prevention member (S80), the bending prevention member is formed by cutting dried wood to a size that protrudes outward while being inserted into the insertion groove, and then applying a transparent acrylic resin to the outer surface of the cut bending prevention member and drying it.

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