KR20040111282A - Tomson-type dieboard with coil spring for pushing out scrap - Google Patents
Tomson-type dieboard with coil spring for pushing out scrap Download PDFInfo
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- KR20040111282A KR20040111282A KR1020040101249A KR20040101249A KR20040111282A KR 20040111282 A KR20040111282 A KR 20040111282A KR 1020040101249 A KR1020040101249 A KR 1020040101249A KR 20040101249 A KR20040101249 A KR 20040101249A KR 20040111282 A KR20040111282 A KR 20040111282A
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- blade
- hole
- spring
- coil spring
- support plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
본 발명은 스크랩취출용 코일스프링이 구비된 톰슨목형에 관한 것으로, 보다 상세하게는 평판형상으로 된 지지판에 밑그림대로 커팅된 칼날설치홈이 형성되며 상기 칼날설치홈에는 밑그림대로 절곡형성된 홀가공칼날 및 외곽가공칼날이 억지끼움되는 톰슨목형을 구성하되, 상기 지지판에 설치된 홀가공칼날의 중앙부에 코일스프링이 고정설치되도록 하므로써, 종래에 톰슨목형의 홀가공칼날내부에 커팅된 스크랩이 끼이게 되는 것을 방지하기 위해 설치된 스펀지로 인하여 발생되는 가공불량 등의 문제점을 완전히 해소할 수 있도록 한 것이다.The present invention relates to a thomson wood type provided with a coil spring for taking out the scrap, and more particularly, a blade mounting groove cut as shown in the sketch is formed on a flat plate-shaped support plate, and the blade installation groove is formed with a hole processing blade bent as shown in the sketch. The outer cutting blade constitutes a thomson wooden mold that is forcibly fitted, but the coil spring is fixedly installed at the center of the hole processing blade installed on the support plate, thereby preventing the conventionally cut scraps being cut inside the thomson wooden hollow cutting blade. In order to completely solve the problems such as processing defects caused by the sponge installed in order to.
일반적으로 목금형 또는 도무송, 톰슨, 톰슨발형, 칼금형 등으로 다양하게 불리고 있는 톰슨목형은 목재 또는 합성수지재로 된 지지판에 레이저나 스카시로 커팅가공하여 칼날설치홈을 형성한 후 그 칼날설치홈에 톰슨목형용 칼날을 특수하고 정교한 절곡기 또는 절단기를 사용하여 제품 형상과 동일하도록 구부리거나 절단한 후 억지끼움식으로 삽입하여 조립한 것으로서, 이러한 톰슨목형은 주로 톰슨프레스기에 장착되어 사용된다.Thomson wood, which is generally called wood mold or domusong, thomson, thomson foot, knife mold, etc., is cut by laser or SCSI on a support plate made of wood or synthetic resin to form a blade installation groove, and then the blade installation groove. The thomson die is assembled by bending or cutting the blade of the thomson die in the same shape as the product using a special and sophisticated bending machine or cutting machine, and then inserting the die by pressing the die thomson die.
이와 같은 톰슨목형은 제작기간이 짧고, 정밀하며, 타금형에 비하여 제작비용이 저렴하므로 종이 스티커, 가죽, 천, 고무, 포맥스, PVC, PP, PE, 스폰지, 테이프 등을 절단하는데 뛰어난 금형으로 인식되어 산업전반에 걸쳐 널리 활용되고 있다.These Thompson's dies have a short production period, are precise, and are cheaper than other molds, so they are recognized as excellent molds for cutting paper stickers, leather, cloth, rubber, Formax, PVC, PP, PE, sponges, and tapes. It is widely used throughout the industry.
도 1은 종래에 사용되고 있는 톰슨목형의 일례를 도시한 것으로, 종래의 톰슨목형은 가공시 지지판(2)에 설치된 홀가공칼날(3)에 의해 커팅된 스크랩이 홀가공칼날(3)의 내부에 끼이게 되는 것을 방지하기 위하여 홀가공칼날(3)내부에 EVA재질 등으로 된 스펀지(10)가 삽입설치되는데, 이러한 스펀지(10)를 홀가공칼날(3)의 내부에 삽입설치하기 위해서는 지지판(2)에 홀가공칼날(3)를 설치하여 톰슨목형(1)의 조립을 완료한 후, 조립완료된 톰슨목형(1)을 홀가공칼날(3)의 높이에 상당하는 두께를 가진 평판형상으로 된 스펀지(10)의 상면에 대고 프레스 등으로 가압하므로써 각 홀가공칼날(3)의 형상에 꼭 맞는 스펀지(10)를 각 홀가공칼날(3)의 내부를 꽉 채우도록 삽입설치할 수 있게 된다.FIG. 1 shows an example of a thomson wood die that is conventionally used. In the conventional thomson wood die, a scrap cut by a hole cutting blade 3 installed on a support plate 2 during processing is placed inside the hole cutting blade 3. In order to prevent being pinched, a sponge 10 made of EVA material or the like is inserted into the hole processing blade 3, and in order to insert the sponge 10 into the hole processing blade 3, a support plate ( 2) After assembling the thomson wood die (1) by installing the hole cutting blade (3), the assembled thomson die (1) is made into a flat shape having a thickness corresponding to the height of the hole cutting edge (3) By pressing the upper surface of the sponge 10 with a press or the like, it is possible to insert and install a sponge 10 that fits perfectly into the shape of each hole cutting blade 3 so as to fill the inside of each hole cutting blade 3 tightly.
그러나, 상기와 같이 구성되는 종래의 톰슨목형은 사용시간이 길어짐에 따라 홀가공칼날(3)의 내부에 꽉 차게 삽입설치된 스펀지(10)로 인해 야기되는 몇가지 문제점이 있었다.However, the conventional Thomson wooden structure configured as described above has some problems caused by the sponge 10 inserted into the hole processing blade 3 so as to be used as the use time becomes longer.
그 첫 번째 문제점은 종래의 톰슨목형에 설치된 홀가공칼날(3)의 내부에 꽉차게 삽입설치된 스펀지(10)는 장기간 탄성수축과 탄성복원을 반복하게 될 경우 그 탄력이 현저히 약화되어 수축된 상태에서 원상태로의 복원이 원활하게 이루어지지 못하고 수축된 상태 그대로 유지되므로써 홀가공칼날(3)의 내부에 삽입되는 스크랩(11a)을 효과적으로 밀어내지 못해 스크랩(11a)이 홀가공칼날(3)에 끼이게 되어 가공불량현상을 유발하게 되는 것이다.The first problem is that the sponge 10 installed tightly in the inside of the hole processing blade (3) installed in the conventional Thomson wooden mold in a state that the elasticity is significantly weakened and contracted when the elastic shrinkage and elastic restoration are repeated for a long period of time. Since the restoration to the original state is not made smoothly and remains in the contracted state, the scrap 11a that is inserted into the inside of the hole cutting blade 3 cannot be effectively pushed out so that the scrap 11a is caught in the hole cutting blade 3. This will cause processing defects.
그리고, 두 번째 문제점은 종래의 톰슨목형을 도시되지 않은 프레스기에 장착한 후 도 2의 (가)에 도시된 바와 같이 소재(11)를 향하여 프레스를 하강시키게 되면 도 2의 (나)에 도시된 바와 같이 지지판(2)에 설치된 홀가공칼날(3)이 그 형상대로 소재(11)를 커팅하게 되는데, 이때 소재(11)로부터 커팅되는 스크랩(11a)이 홀가공칼날(3)의 내부로 삽입되면서 홀가공칼날(3)의 내부에 설치된 스펀지(10)를수직방향으로 탄성수축시키게 되고, 이렇게 수직방향으로 탄성수축되는 스펀지(10)가 수평방향으로 팽창하게 되면서 홀가공칼날(3)의 내측을 가압하게 되므로써 절곡형성된 홀가공칼날(3)의 양단부가 맞닿는 이음매(3a)부분이 약간 벌어지게 된다. 이로 인하여 홀가공칼날(3)의 벌어진 이음매(3a)부분에서는 커팅이 제대로 이루어지지 않게 되므로 소재(11)로부터 스크랩(11a)이 완전히 절단되지 않고 커팅되지 않은 부분에 의해 소재(11)에 그대로 매달려 있게 되는 가공불량현상을 유발하게 되는 것이다.And, the second problem is that after mounting the conventional Thomson die in the press (not shown) as shown in Figure 2 (a) is to lower the press toward the material 11 shown in Figure 2 (b) As described above, the hole cutting blade 3 installed on the support plate 2 cuts the raw material 11 in its shape. At this time, the scrap 11a cut from the raw material 11 is inserted into the hole cutting blade 3. While elastically contracting the sponge 10 installed in the hole processing blade 3 in the vertical direction, the sponge 10 is elastically contracted in the vertical direction so as to expand in the horizontal direction inside the hole processing blade (3) By pressing the portion of the joint (3a) that both ends of the bent hole (3) is bent abutting is slightly opened. Due to this, since the cutting is not performed properly at the open seam 3a portion of the hole processing blade 3, the scrap 11a is not completely cut from the material 11 and is suspended as it is on the material 11 by the uncut portion. It will lead to processing defects.
아울러, 종래의 톰슨목형의 사용시 상기한 바와 같은 가공불량현상이 발생하게 되면, 가공후 스크랩(11a)을 완전히 제거하기 위한 후가공작업이 실시되어야 할 뿐 아니라 수축된 스펀지(10)의 교환작업 및 변형된 홀가공칼날(3)의 수리 또는 교체작업 등이 실시되어야 하므로 많은 시간과 비용이 소요되어 생산성이 현저히 저하되는 문제점이 있었다.In addition, if the above-described processing failure occurs when using the conventional Thomson wooden mold, not only the post-processing work to completely remove the scrap (11a) after processing, but also replacement and deformation of the shrinked sponge (10) Since the repair or replacement of the hole-processing blade 3 has to be carried out, it takes a lot of time and money, there is a problem that the productivity is significantly reduced.
본 발명은 상기의 문제점을 해결하기 위하여 안출된 것으로서, 평판형상으로 된 지지판에 밑그림대로 커팅된 칼날설치홈이 형성되며 상기 칼날설치홈에는 밑그림대로 절곡형성된 홀가공칼날 및 외곽가공칼날이 억지끼움되는 톰슨목형을 구성하되, 상기 지지판에 설치된 홀가공칼날의 중앙부에 코일스프링이 고정설치되도록 하므로써, 종래에 톰슨목형의 홀가공칼날내부에 커팅된 스크랩이 끼이게 되는 것을 방지하기 위해 설치된 스펀지로 인하여 발생되는 가공불량 등의 문제점을 완전히 해소할 수 있도록 하는 것을 기술적 과제로 한다.The present invention has been made in order to solve the above problems, is formed in the flat plate-shaped support plate is formed as a cutting blade cutting grooves, the blade installation grooves are bent to form the hole processing blades and the outer processing blades are bent as the sketches Although it constitutes a thomson wooden die, the coil spring is fixed to the center of the hole cutting blade installed on the support plate, so it is generated by a sponge that is conventionally installed to prevent the scraps cut into the thomson wooden hole cutting blade. The technical problem is to make it possible to completely solve the problems such as processing defects.
상기의 기술적 과제를 해결하기 위하여 본 발명은 평판형상으로 된 지지판에 밑그림대로 커팅된 칼날설치홈이 형성되고, 상기 지지판에 형성된 칼날설치홈에는 밑그림대로 절곡형성된 홀가공칼날 및 외곽가공칼날이 억지끼움되는 톰슨목형에 있어서, 상기 지지판에 설치된 홀가공칼날의 중앙부에는 핀설치공이 관통형성되며 상기 핀설치공에는 상단에 스프링끼움부가 형성된 스프링설치핀이 억지끼움되고, 상기 스프링설치핀의 스프링끼움부에는 코일스프링이 삽입설치된 것을 특징으로 한다.In order to solve the above technical problem, the present invention is formed in the flat plate-shaped support plate is cut in the blade installation groove, the blade installation groove formed in the support plate is bent according to the sketch of the hole processing blade and the outer processing blade is fitted. In the thomson wooden type to be formed, a pin installation hole is formed through the center portion of the hole processing blade installed in the support plate and the pin mounting hole is fitted with a spring mounting pin having a spring fitting portion at the top, the spring fitting portion of the spring mounting pin It is characterized in that the coil spring is installed.
도 1은 종래의 톰슨목형을 나타내는 일부분해 사시도.1 is a partially perspective view showing a conventional Thomson die.
도 2의 (가)(나)는 종래의 톰슨목형의 작용상태를 확대 단면도.Figure 2 (a) (b) is an enlarged cross-sectional view of the operation state of the conventional Thompson tree.
도 3은 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형을 나타내는 일부분해 사시도.Figure 3 is a partial perspective view showing a thomson neck with a coil spring for scrap extraction according to the present invention.
도 4의 (가)(나)는 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형의 작용상태를 나타내는 확대 단면도.Figure 4 (a) (b) is an enlarged cross-sectional view showing the working state of the Thompson wooden provided with a coil spring for scrap extraction according to the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
1 : 톰슨목형 2 : 지지판1: Thompson Wooden 2: Support Plate
2a : 칼날설치홈 2b : 핀설치공2a: Blade mounting groove 2b: Pin mounting hole
3 : 홀가공칼날 3a : 이음매3: hole cutting blade 3a: seam
4 : 외곽가공칼날 5 : 코일스프링4: outer edge cutting edge 5: coil spring
6 : 스프링설치핀 6a : 스프링끼움부6: spring mounting pin 6a: spring fitting
이하, 상기의 목적을 달성하기 위하여 본 발명을 도 3과 도 4를 참고하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to FIGS. 3 and 4 to achieve the above object.
도 3은 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형을 나타내는 일부분해 사시도이며, 도 4의 (가)(나)는 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형의 작용상태를 나타내는 확대 단면도이다.Figure 3 is a partially perspective view showing a thomson neck with a coil spring for taking out the scrap according to the present invention, Figure 4 (a) (b) is the action of the thomson neck with a coil spring for scrap taking out according to the present invention. It is an expanded sectional view which shows a state.
본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형은 도 3에 도시되어 있는 바와 같이, 평판형상으로 된 지지판(2)에 밑그림대로 커팅된 칼날설치홈(2a)이 형성되고, 상기 지지판(2)에 형성된 칼날설치홈(2a)에 밑그림대로 절곡형성된 홀가공칼날(3) 및 외곽가공칼날(4)이 억지끼움되는 종래의 톰슨목형에 있어서, 상기 지지판(2)에 설치된 홀가공칼날(3)의 중앙부에 핀설치공(2b)이 관통형성되며 상기 핀설치공(2b)에는 상단에 스프링끼움부(6a)가 형성된 스프링설치핀(6)이 억지끼움되고, 상기 스프링설치핀(6)의 스프링끼움부(6a)에 코일스프링(5)이 삽입설치되도록 구성된다.As shown in FIG. 3, the Thompson-shaped wood mold having a coil spring for scrap extraction according to the present invention has a blade mounting groove 2a cut as shown in the drawing on the flat plate-like support plate 2, and the support plate ( In the conventional thomson wood type in which the hole processing blade 3 and the outer processing blade 4 bent into the blade installation groove 2a formed in the drawing 2 are forcibly fitted, the hole processing blade installed on the support plate 2 ( 3) the pin mounting hole 2b is formed through the center of the pin mounting hole 2b, and the spring mounting pin 6 having the spring fitting portion 6a formed thereon is inserted into the pin mounting hole 2b, and the spring mounting pin 6 Coil spring 5 is inserted into the spring fitting portion (6a) of the) is installed.
상기와 같이 구성되는 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형의 조립 및 작용관계를 설명하면 다음과 같다.Referring to the assembly and working relationship of the thomson wooden provided with a coil spring for scrap take-out according to the present invention configured as described above are as follows.
본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형을 조립하기 위해서는, 우선 목재 또는 합성수지재로 된 지지판(2)에 레이저 등을 이용하여 홀가공칼날(3) 및 외곽가공칼날(4)이 설치될 칼날설치홈(2a)을 밑그림대로 커팅가공할 때 홀가공칼날(3)이 설치될 칼날설치홈(2a)의 중앙부에 핀설치공(2b)을 함께 관통형성시킨다.In order to assemble the Thomson wooden mold provided with the coil spring for scrap extraction according to the present invention, first, the hole cutting blade 3 and the outer cutting blade 4 are made using a laser or the like on a support plate 2 made of wood or synthetic resin. When cutting the blade installation groove (2a) to be installed as shown in the sketch, the pin installation hole (2b) is formed to penetrate together in the center of the blade installation groove (2a) to be installed.
그리고, 상기 지지판(2)에 커팅형성된 칼날설치홈(2a)에 밑그림대로 절곡형성된 홀가공칼날(3) 및 외곽가공칼날(4)을 억지끼움식으로 삽입설치할 때, 상기 칼날설치홈(2a)의 중앙부에 관통형성된 핀설치공(2b)에는 상단에 스프링끼움부(6a)가 형성된 스프링설치핀(6)을 억지끼움식으로 삽입설치한 후 상기 스프링끼움부(6a)에 코일스프링(5)을 끼워 고정설치하므로써 조립을 완료하게 된다.Then, when inserting the hole processing blade (3) and the outer processing blade (4) formed bent as shown in the sketch to the blade installation groove (2a) formed on the support plate (2), the blade installation groove (2a) In the pin installation hole (2b) formed through the center of the spring spring (6a) formed on the top of the spring mounting pin (6) is inserted into the installation by force-fitting the coil spring (5) to the spring fitting portion (6a) The assembly is completed by inserting and fixing it.
상기와 같이 조립완료된 본 발명에 의한 톰슨목형은 도시되지 않은 프레스기에 장착되어 도 4의 (가)(나)에 도시되어 있는 바와 같이 프레스의 승하강에 따라 홀가공칼날(3)이 소재(11)를 형상대로 커팅하게 되는 동시에 홀가공칼날(3)의 내측중앙부에 설치된 코일스프링(5)이 탄성수축과 탄성복원을 반복하면서 홀가공칼날(3)에 의해 커팅된 스크랩(11a)을 홀가공칼날(3)의 내부에 끼이지 않도록 완전히 밀어내게 되므로써 홀가공칼날(3)내부에 스크랩이 적층됨으로 인해 발생되던 가공불량현상을 완전히 해소할 수 있게 되므로 생산성을 더욱 더 향상시킬 수 있게 된다.The thomson wooden mold according to the present invention, which is assembled as described above, is mounted on a press machine (not shown), and as shown in FIG. ), The coil spring 5 installed in the inner central portion of the hole cutting blade 3 repeats the elastic shrinkage and elastic recovery while hole cutting the scrap 11a cut by the hole cutting blade 3. Since it is pushed completely so as not to be caught inside the blade (3), it is possible to completely eliminate the machining defects caused by the stacking of scraps in the hole processing blade (3) can further improve the productivity.
또한, 본 발명에 의한 톰슨목형은 홀가공칼날(3)의 내측중앙부에 설치된 코일스프링(5)이 홀가공칼날(3)에 전혀 영향을 미치지 않고 독립적으로 탄성수축 및 탄성복원을 반복하게 되므로써 종래에 비해 홀가공칼날(3)의 내구성을 더욱 더 향상시킬 수 있게 될 뿐 아니라 종래의 스펀지의 팽창에 의해 홀가공칼날(3)의 이음매부분이 벌어지게 됨으로 인해 발생되던 가공불량현상을 완전히 해소할 수 있게 되므로 생산성을 더욱 더 향상시킬 수 있게 된다.In addition, according to the present invention, the Thomson wood die according to the present invention is characterized in that the coil spring 5 installed at the inner central portion of the hole cutting blade 3 repeats elastic shrinkage and elastic recovery independently without affecting the hole cutting blade 3 at all. Compared to this, not only can the durability of the hole cutting blade 3 be further improved, but also the processing defect caused by the expansion of the conventional sponge to open the joint portion of the hole cutting blade 3 can be completely eliminated. As a result, productivity can be further improved.
상기와 같이 본 발명에 의한 스크랩취출용 코일스프링이 구비된 톰슨목형은 지지판에 설치된 홀가공칼날의 중앙부에 코일스프링이 고정설치되도록 구성되므로써 종래에 톰슨목형의 홀가공칼날내부에 커팅된 스크랩이 끼이게 되는 것을 방지하기 위해 설치된 스펀지로 인하여 발생되는 가공불량 등의 문제점을 완전히 해소하여 생산성을 대폭 향상시킬 수 있는 효과가 있는 것이다.Thomson wood type provided with a coil spring for scrap take-out according to the present invention as described above is configured so that the coil spring is fixed to the central portion of the hole processing blade installed in the support plate, the conventionally cut scraps cut inside the thomson wood type hole processing blade In order to prevent this, there is an effect that can significantly improve productivity by completely eliminating problems such as processing defects caused by the installed sponge.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040101249A KR20040111282A (en) | 2004-12-03 | 2004-12-03 | Tomson-type dieboard with coil spring for pushing out scrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040101249A KR20040111282A (en) | 2004-12-03 | 2004-12-03 | Tomson-type dieboard with coil spring for pushing out scrap |
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| Publication Number | Publication Date |
|---|---|
| KR20040111282A true KR20040111282A (en) | 2004-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040101249A KR20040111282A (en) | 2004-12-03 | 2004-12-03 | Tomson-type dieboard with coil spring for pushing out scrap |
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| KR (1) | KR20040111282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102028540B1 (en) | 2019-04-16 | 2019-10-07 | (주) 청도 | Pusher and Its used Packing Box Handle Cutter Assembly |
| KR102069046B1 (en) | 2019-11-05 | 2020-01-22 | 이종철 | Handle Cutter Assembly for Packing Box |
| KR102231834B1 (en) | 2019-09-25 | 2021-03-24 | 이종철 | Handle Cutter Assembly for Packing Box |
| KR102327098B1 (en) | 2021-06-11 | 2021-11-15 | 이종철 | Pre-assembled Cutter Assembly for Perforating Carton Handle |
-
2004
- 2004-12-03 KR KR1020040101249A patent/KR20040111282A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102028540B1 (en) | 2019-04-16 | 2019-10-07 | (주) 청도 | Pusher and Its used Packing Box Handle Cutter Assembly |
| KR102231834B1 (en) | 2019-09-25 | 2021-03-24 | 이종철 | Handle Cutter Assembly for Packing Box |
| KR102069046B1 (en) | 2019-11-05 | 2020-01-22 | 이종철 | Handle Cutter Assembly for Packing Box |
| KR102327098B1 (en) | 2021-06-11 | 2021-11-15 | 이종철 | Pre-assembled Cutter Assembly for Perforating Carton Handle |
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