KR200195947Y1 - Cutting wheel for stone - Google Patents
Cutting wheel for stone Download PDFInfo
- Publication number
- KR200195947Y1 KR200195947Y1 KR2020000008281U KR20000008281U KR200195947Y1 KR 200195947 Y1 KR200195947 Y1 KR 200195947Y1 KR 2020000008281 U KR2020000008281 U KR 2020000008281U KR 20000008281 U KR20000008281 U KR 20000008281U KR 200195947 Y1 KR200195947 Y1 KR 200195947Y1
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- South Korea
- Prior art keywords
- cutting
- saw blade
- shank
- stone
- cutting edge
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/028—Circular saw blades of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/18—Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
Abstract
본 고안은 석재를 가공절삭하기 위한 습식 절삭용 톱날에 있어서, 절삭가공시 톱날의 생크와 피삭재의 마찰에 의한 마찰열 발생을 차단ㆍ최소화하며, 효율적인 절삭작업이 이루어지고, 톱날을 비롯한 절삭기계의 수명도 극대화될 수 있도록 하는 석재 가공용 톱날에 관한 것이다.The present invention is a wet cutting saw blade for cutting and cutting stone, which cuts and minimizes the generation of frictional heat due to the friction of the shank of the saw blade and the workpiece during cutting, efficient cutting work, and the life of the cutting machine including saw blade It relates to a saw blade for stone processing to be maximized.
종래 기술은, 톱날의 생크면과 피삭재의 절단면이 맞닿아 마찰이 발생되고, 절단 깊이가 깊어질수록 절삭에 따른 돌가루, 먼지 등이 생크면과 피삭재 사이에 틈입축적되어 마찰열을 발생시킬 뿐만 아니라, 고가의 톱날등 기계의 수명을 단축시켜 막대한 비용을 낭비하게 되는 한편 절삭속도를 심히 저하시켜 작업능률이 현저히 저하되는 문제점이 있었다.In the prior art, the shank surface of the saw blade and the cutting surface of the workpiece contact each other to generate friction, and as the depth of cut increases, stone powder, dust, etc. resulting from the cutting are accumulated between the shank surface and the workpiece to generate frictional heat. In other words, the cost of saw blades, such as expensive saw blades, was reduced to waste enormous costs, and the cutting speed was severely reduced.
본 고안은, 동력축에 체결되기 위한 축공을 구비한 원반형 스틸 생크(STEEL SHANK)와, 상기 생크의 주연부에 소정폭의 다이아몬드 초경합금으로 이루어진 절삭날(SEGMENT)을 형성하여 이루어지는 통상의 석재 가공용 톱날에 있어서,The present invention has a disc shaped steel shank (STEEL SHANK) having a shaft hole for fastening to the power shaft, and a normal stone processing saw blade formed by forming a cutting edge (SEGMENT) consisting of a diamond cemented carbide of a predetermined width in the periphery of the shank In
절삭날(SEGMENT)(10)에 일체로, 절삭날과 동일 조성물로 하여, 다수의 리브(RIB)(11)를 스틸 생크(STEEL SHANK)(20) 양면에 방사상으로 연장 형성하여 이루어지며, 상기 다수의 리브(11)는 각각 그 양면의 중심에 분진배출이 용이하기 위한 홈(12)을 형성함을 특징으로 하는 것임.Integral to the cutting edge (SEGMENT) 10, the same composition as the cutting edge, is formed by radially extending a plurality of ribs (RIB) 11 on both sides of the steel shank (20), The plurality of ribs 11 is characterized in that each of the grooves 12 to facilitate dust emission in the center of both sides of the formation.
Description
본 고안은 화강석, 대리석 등의 석재를 절삭가공하기 위한 톱날에 관한 것으로서, 특히 석재를 정확한 치수와 모양으로 절삭가공하기 위한 습식 절삭용 톱날에 있어서, 절삭가공시 톱날의 생크와 피삭재의 마찰에 의한 마찰열 발생을 차단ㆍ최소화하며, 효율적인 절삭작업이 이루어지고, 톱날을 비롯한 절삭기계의 수명도 극대화될 수 있도록 하는 석재 가공용 톱날에 관한 것이다.The present invention relates to a saw blade for cutting stone, such as granite, marble, and the like, in particular a wet cutting saw blade for cutting the stone to an accurate dimension and shape, due to the friction of the shank of the saw blade and the workpiece during cutting The present invention relates to a saw blade for stone processing, which blocks and minimizes the generation of frictional heat, enables efficient cutting operations, and maximizes the life of cutting machines including saw blades.
종래기술의 석재절단을 위한 습식용 톱날(100)은 도 7에 도시된 바와 같이. 동력축에 체결되기 위한 축공(121)을 구비한 원반형 스틸 생크(STEEL SHANK)(120)와 상기 생크의 주연부에 소정폭의 다이아몬드 초경합금으로 이루어진 절삭날(SEGMENT)(110)을 형성하되, 절삭날의 두께(S1)가 생크의 두께(S2)보다 좀더 두텁게 형성되어 절삭 진입이 이루어질 수 있도록 형성되며, 마찰열을 냉각시켜주기 위한 물을 연속적으로 공급하면서, 톱날을 석재면에 직각을 유지하도록 회전 진입시키게 된다.Wet saw blade 100 for stone cutting of the prior art as shown in FIG. A disc shaped steel shank 120 having a shaft hole 121 for fastening to a power shaft and a cutting edge 110 made of a diamond cemented carbide of a predetermined width are formed at a periphery of the shank, The thickness (S1) of the thicker than the thickness of the shank (S2) is formed so that the cutting entry can be made, while continuously supplying water for cooling the friction heat, while the saw blade is rotated to maintain a right angle to the stone surface Let's go.
상기한 종래 기술의 석재 가공용 톱날(100)은, 피삭재(2)인 석재를 원하는 형상 또는 크기로, 수직, 수평 또는 임의의 각도로 절단가공함에 있어서,The above-mentioned prior art stone processing saw blade 100, in the cutting process the stone, which is the workpiece (2) in a desired shape or size, vertically, horizontally or at an arbitrary angle,
상기한 바와 같이 석재면에 톱날이 직각으로 진입되어야만 석재의 절삭공간에서 톱날의 두께보다 얇게 형성된 생크가 회전하는 공간이 확보되지만,As described above, the saw blade should be entered at right angles to the stone surface to secure a space in which the shank formed thinner than the thickness of the saw blade rotates in the cutting space of the stone.
실제로는 도 8에 도시된 바와 같이, 톱날을 석재면에 회전 진입시 직각을 유지하기가 어렵고, 따라서 경사각이 발생되어, 톱날의 생크면(120)과 피삭재(2)의 절단면이 맞닿아 마찰이 발생되게 된다.In practice, as shown in FIG. 8, it is difficult to maintain a right angle when the saw blade is rotated into the stone surface, and thus an inclination angle is generated so that the shank surface 120 of the saw blade and the cut surface of the workpiece 2 come into contact with each other to generate friction. Will be.
이러한 현상은 특히 피삭재를 임의의 경사각으로 절단시에 더욱 심각하게 발생되는데, 절단 깊이가 깊어질수록 절삭에 따른 돌가루, 먼지 등이 절삭공간의 생크면과 피삭재 사이에 틈입ㆍ축적되어 마찰을 가속시켜 마찰열을 발생시킬 뿐만 아니라, 절삭속도를 심히 저하시켜 톱날을 비롯한 전체 절단기계에 과부하를 가져오게 된다.This phenomenon occurs more seriously when cutting the workpiece at any angle of inclination. As the depth of cut gets deeper, stones and dusts are cut and accumulated between the shank surface of the cutting space and the workpiece to accelerate the friction. Not only does it generate frictional heat, but it also significantly reduces the cutting speed, resulting in an overload of the entire cutting machine including the saw blade.
즉, 절삭날의 절삭작업에서 발생되는 열과, 생크면에서 발생되는 마찰열이 상승작용을 일으켜 생크의 강도를 저하시킴과 동시에, 절삭작업이 지속될수록 생크에 가열현상과 마찰로 인한 진동현상이 심화되어 석재의 정확한 절단가공이 이루어지지 못하는 어려움이 있었다.In other words, the heat generated during the cutting operation of the cutting edge and the frictional heat generated from the shank surface cause synergy to decrease the strength of the shank, and as the cutting operation continues, the phenomenon of heating and friction on the shank is intensified. There was a difficulty in making accurate cutting of the stone.
또한 이러한 마찰열 및 과부하로 인하여 고가의 톱날이 손상, 수명이 단축되며, 여기에 취부되는 전동공구 또한 심각한 손상 및 빠른 마모를 가져와, 전체 절단기계의 수명을 단축시켜 막대한 비용을 낭비하게 되는 한편 작업능률이 현저히 저하되는 문제점이 있었다.In addition, the frictional heat and overload damage the expensive saw blade and shorten the lifespan, and the power tool mounted thereon also causes severe damage and fast wear, which shortens the life of the entire cutting machine and wastes huge costs. There was a problem that this is significantly reduced.
본 고안은 상기한 문제점을 해소하기 위하여 안출된 것으로서,The present invention has been devised to solve the above problems,
본 고안의 목적은, 톱날의 생크부에 절삭날에서 연장되는 방사상의 리브(RIB)를 부여하므로서, 생크면과 피삭재면의 마찰을 방지하도록하여,An object of the present invention is to prevent the friction between the shank surface and the workpiece surface by providing a radial rib (RIB) extending from the cutting edge to the shank portion of the saw blade,
석재의 정확한 절단가공 및 깊숙한 진입절삭도 효율적으로 이루어지도록 하고, 절단가공시에 발생되는 마찰열을 차단ㆍ최소화시키며, 톱날을 비롯한 전체 절단기계의 수명을 최대한 연장시키고, 작업효율을 극대화시키도록 하는 석재 가공용 톱날을 제공함에 있다.The stone is designed to make accurate cutting processing and deep entry cutting of stone efficiently, to block and minimize frictional heat generated during cutting processing, to extend the life of the entire cutting machine including saw blades as much as possible, and to maximize the working efficiency. To provide a saw blade for processing.
도 1은 본 고안의 일 실시예에 따른 구성을 보이는 사시도.1 is a perspective view showing a configuration according to an embodiment of the present invention.
도 2는 도 1의 일부 확대도.2 is an enlarged view of a portion of FIG. 1;
도 3은 도 1의 A-A선 일부 생략 확대 단면도.3 is a partially omitted enlarged cross-sectional view taken along the line A-A of FIG.
도 4는 본 고안의 다른 실시예에 따른 구성의 평면도.4 is a plan view of a configuration according to another embodiment of the present invention.
도 5는 본 고안의 또 다른 실시예에 따른 구성의 평면도.5 is a plan view of a configuration according to another embodiment of the present invention.
도 6은 본 고안의 사용 상태의 일부 확대도.Figure 6 is an enlarged view of a portion of the use state of the present invention.
도 7은 종래 기술의 평면도.7 is a plan view of the prior art.
도 8은 종래 기술의 사용 상태 단면 일부 생략 확대도.Figure 8 is a partially omitted enlarged view of the state of use of the prior art.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1: 석재 가공용 톱날 2: 피삭재1: saw blade for stone processing 2: workpiece
10: 절삭날 11: 리브10: cutting edge 11: rib
12: 홈 20: 생크12: home 20: shank
21: 축공21: Axis
상기한 목적을 달성하는 본 고안에 따른 석재 가공용 톱날은,The saw blade for stone processing according to the present invention to achieve the above object,
동력축에 체결되기 위한 축공을 구비한 원반형 스틸 생크(STEEL SHANK)와, 상기 생크의 주연부에 소정폭의 다이아몬드 초경합금으로 이루어진 절삭날(SEGMENT)을 형성하여 이루어지는 통상의 석재 가공용 톱날에 있어서,In the normal stone processing saw blade formed by forming a disc shaped steel shank (STEEL SHANK) having a shaft hole for fastening to the power shaft, and a cutting edge (SEGMENT) made of diamond cemented carbide of a predetermined width in the periphery of the shank,
상기 절삭날(SEGMENT)에 일체로, 절삭날과 동일 조성물로 하여, 다수의 리브(RIB)를 스틸 생크(STEEL SHANK) 양면에 방사상으로 연장 형성하여 이루어지며,Integral to the cutting edge (SEGMENT), made of the same composition as the cutting edge, is formed by radially extending a plurality of ribs (RIB) on both sides of the steel shank (STEEL SHANK),
상기 리브는 각각 그 양면 중심에 분진배출이 용이하게 하기 위한 홈을 형성함을 특징으로 한다.Each of the ribs is characterized by forming grooves on both sides of the center to facilitate dust discharge.
이하, 본 고안의 석재 가공용 톱날에 대한 일 실시예를 첨부도면을 참조하여 보다 상세히 설명한다.Hereinafter, with reference to the accompanying drawings an embodiment of a saw blade for stone processing of the present invention will be described in more detail.
도 1은 본 고안에 따른 일 실시예의 사시도이며, 도 2는 도 1의 일부 확대도이고, 도 3은 도 1의 A-A선 일부 생략 확대 단면도이다.1 is a perspective view of an embodiment according to the present invention, Figure 2 is a partially enlarged view of Figure 1, Figure 3 is a partially omitted enlarged cross-sectional view of the line A-A of FIG.
도 1 및 내지 도 3에 도시된 바와 같이, 본 고안에 따른 석재 가공용 톱날(1)은, 동력축에 체결되기 위한 축공(21)을 구비한 원반형 스틸 생크(STEEL SHANK)(20)와, 상기 생크의 주연부에 소정폭의 다이아몬드 초경합금으로 이루어진 절삭날(SEGMENT)을 형성하여 이루어지는 통상의 석재 가공용 톱날에 있어서,As shown in Figures 1 and 3, the stone processing saw blade 1 according to the present invention is a disk-shaped steel shank (STEEL) having a shaft hole 21 for fastening to the power shaft In the normal stone processing saw blade formed by forming a SHANK) 20 and a cutting edge made of diamond cemented carbide of a predetermined width at the periphery of the shank,
절삭날(SEGMENT)(10)에 일체로, 상기 절삭날(10)과 동일 조성물로 하여, 다수의 리브(RIB)(11)를 스틸 생크(STEEL SHANK)(20) 양면에 방사상으로 소정 길이 연장 형성하여 이루어진다.Integrally to the cutting edge 10 and the same composition as the cutting edge 10, the plurality of ribs 11 are extended radially on both sides of the steel shank 20 by a predetermined length. Formed.
상기 리브(11)는 절삭날 두께의 흐름에 연속되도록 생크면에서 소정의 높이로 돋음형성된다.The rib 11 is raised to a predetermined height at the shank surface so as to be continuous with the flow of cutting edge thickness.
상기 리브(11)는 리브가 형성되는 위치의 생크부에 요입홈을 형성하고, 상기 요입홈에 상기 절삭날과 동일 조성물인 다이어몬드 초경합금을 성형 소결시켜 형성함이 바람직하다.The rib 11 is preferably formed by forming a recess groove in the shank portion of the position where the rib is formed, by molding and sintering the diamond cemented carbide of the same composition as the cutting edge.
상기 리브(11)는, 그 양면의 중심에 분진배출이 용이하기 위한 홈(12)을 형성함이 바람직하다The rib 11 is preferably formed in the center of both sides of the groove 12 for easy dust discharge.
상기 다수의 리브(11)는, 생크면에 방사상으로 배열되되, 도 4에 도시된 바와 같이. 스파이럴형으로 형성되어도 무방하며, 이 밖에도 여러 형상으로 구성될 수 있다.The plurality of ribs 11 are arranged radially on the shank surface, as shown in FIG. 4. It may be formed in a spiral shape, and may be configured in various shapes.
상기 다수의 리브(11)는 도 5에 도시된 바와 같이 절삭날(10)로 부터 소정간격을 두고 방사상으로 다수 배열형성되어도 무방하다.As shown in FIG. 5, the plurality of ribs 11 may be arranged radially in a plurality with a predetermined distance from the cutting edge 10.
도 6은 본 고안의 사용상태를 보이는 일부 확대 단면도이다.6 is a partially enlarged cross-sectional view showing a state of use of the present invention.
도 1 내지 도 6을 참고하여, 상기한 구성을 지닌 본 고안의 작용상태를 살펴본다.With reference to Figures 1 to 6, look at the operating state of the present invention having the above configuration.
생크(20)면에 절삭날과 동일 조성물로 하여, 일체로 연결되고 방사상으로 형성되는 다수의 리브(11)는, 절삭 기능, 절삭공간 확보 및 생크의 스페이서 기능을 갖게 된다.The plurality of ribs 11, which are integrally connected and radially formed on the shank 20 with the same composition as the cutting edge, have a cutting function, a cutting space, and a spacer function of the shank.
즉, 상기 리브는 절삭날과 같은 다이아몬드 초경합금체이므로, 톱날의 절삭 깊이가 깊어짐에 따라 피삭재(2)의 절삭면에 진입되면서, 피삭제의 절삭면을 연마하며 톱날의 절삭공간을 확보하는 한편,That is, since the rib is a diamond cemented carbide alloy such as a cutting edge, as the cutting depth of the saw blade deepens and enters the cutting surface of the workpiece 2, the cutting surface of the workpiece is polished and the cutting space of the saw blade is secured.
생크(20)의 양면에 소정두께로 돋음형성됨으로써, 절삭공간에서 스틸 생크(20)가 어느 일측으로 기울지 않고 중립될 수 있도록 지지하는 스페이서 기능을 갖게 되어, 생크(20)와 피삭재(2)의 절삭면이 맞닿음을 방지하고, 따라서 석재가공에서 가장 치명적 문제점인 피삭재와의 마찰열 발생을 차단ㆍ최소화시킨다.By being raised to a predetermined thickness on both sides of the shank 20, it has a spacer function to support the steel shank 20 to be neutral without inclining to any one side in the cutting space, so that the shank 20 and the workpiece (2) It prevents abutment of the cutting surface, thus blocking and minimizing the generation of frictional heat with the workpiece, which is the most fatal problem in stone processing.
따라서, 전체적으로 처음의 절삭속도를 작업 끝까지 유지토록 하고, 톱날의 중심부까지의 깊은 절삭시에도 과부하 및 톱날의 진동이 최소화되어, 정확한 절삭가공이 이루어지게 되며, 이러한 작용은 특히 임의의 경사각으로 절단가공시 더욱 돋보이게 된다.Therefore, the initial cutting speed is maintained to the end of the work as a whole, and the overload and vibration of the saw blade are minimized even when the cutting to the center of the saw blade is minimized, so that accurate cutting processing is achieved. The poem will stand out even more.
한편, 상기 리브(11)에 형성되는 홈(12)은 피삭재(2)와의 마찰을 줄이고, 절삭속도를 향상시키며, 절삭과정에서 발생되는 돌가루 등의 분진배출을 용이하게 하고, 냉각통공의 기능을 갖게 된다.On the other hand, the groove 12 formed in the rib 11 reduces friction with the workpiece 2, improves the cutting speed, facilitates the discharge of dust, such as stone generated during the cutting process, the function of the cooling through hole Will have
또한, 상기 리브(11)의 절삭면 연마작용으로 후속공정인 연마가공의 한 공정을 자동으로 단축시키게 되고, 다른 한편 생크를 보강 강화시켜 지속적인 회전절삭작업에도 생크(20)의 진동을 방지하고 이에 결합된 동력수단의 손상을 방지하도록 한다.In addition, the cutting surface grinding action of the rib 11 automatically shortens one step of the subsequent machining, and on the other hand, by reinforcing and strengthening the shank to prevent the vibration of the shank 20 in the continuous rotary cutting operation To prevent damage to the combined power means.
이상에서 상세히 살펴본 바와 같이. 본 고안에 따른 석재 가공용 톱날은,As discussed in detail above. The saw blade for stone processing according to the present invention,
절삭연마 기능을 구비한 다수의 리브룰 방사상으로 부여하므로서, 석재 가공시 톱날의 절삭공간을 확보토록 하고, 피삭재의 절삭면을 연마하며, 생크의 스페이서 기능 및 분진배출 기능을 구비하여,By providing a large number of ribules radially with a cutting polishing function, to ensure the cutting space of the saw blade during stone processing, to polish the cutting surface of the workpiece, and to provide a spacer function and a dust discharge function of the shank,
톱날 중심부 가깝게 깊숙히 들어간 위치의 절단작업시도 시종 같은 속도를 유지토록 하여 정확한 가공이 이루어지도록하고, 작업효율을 현저히 향상시키는 한편,The cutting speed is maintained close to the center of the saw blade to maintain the same speed and to ensure accurate machining, while significantly improving work efficiency.
석재의 절단가공에서 가장 치명적인 문제점인 피삭재와 톱날 생크의 마찰로 인한 마찰열 및 진동을 차단ㆍ최소화하여, 고가의 톱날을 비롯한 절단기계 전체의 수명을 극대화시키므로서, 현저한 비용 절감을 가져오도록 하는 등 여러면으로 대단히 유익한 기술이다.By cutting and minimizing frictional heat and vibration caused by friction between workpiece and saw shank, which is the most serious problem in cutting of stone, it maximizes the life of cutting machine including expensive saw blades, resulting in significant cost reduction. It is a very beneficial technique.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020000008281U KR200195947Y1 (en) | 2000-03-23 | 2000-03-23 | Cutting wheel for stone |
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| Application Number | Priority Date | Filing Date | Title |
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| KR2020000008281U KR200195947Y1 (en) | 2000-03-23 | 2000-03-23 | Cutting wheel for stone |
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| KR200195947Y1 true KR200195947Y1 (en) | 2000-09-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210019631A (en) * | 2019-08-12 | 2021-02-23 | 엠.제이.테크(주) | Cutting Blade and Cutting Device using the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210019631A (en) * | 2019-08-12 | 2021-02-23 | 엠.제이.테크(주) | Cutting Blade and Cutting Device using the same |
| KR102226004B1 (en) | 2019-08-12 | 2021-03-11 | 엠.제이.테크(주) | Cutting Blade and Cutting Device using the same |
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