KR200295779Y1 - Joint bolt die for furniture - Google Patents
Joint bolt die for furniture Download PDFInfo
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- KR200295779Y1 KR200295779Y1 KR2020020020930U KR20020020930U KR200295779Y1 KR 200295779 Y1 KR200295779 Y1 KR 200295779Y1 KR 2020020020930 U KR2020020020930 U KR 2020020020930U KR 20020020930 U KR20020020930 U KR 20020020930U KR 200295779 Y1 KR200295779 Y1 KR 200295779Y1
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Abstract
본 고안은 가구용 판재와 판재를 연결시키는 연결볼트의 머리부와 십자홈은 단조방식으로 형성하고 머리부 아래쪽에 만들어진 캠 걸림용 볼록면은 전조방식으로 형성하되 전조과정에서 십자홈이 찌그러지지 않도록 전조금형의 형상을 개선함으로써, 연결볼트의 생산성이 향상되고 전조방식으로 머리부를 생산함으로 소음이 감소되어 작업환경이 개선되는 가구용 연결볼트 전조 성형기에 관한 것으로서, 특히 가구용 판재와 판재를 연결하는 연결볼트의 머리부에 볼록면과 잘록부를 형성하여 가구용 판재에 결합된 체결캠에 볼록면이 걸리도록 하기 위한 연결볼트 성형기에 있어서, 한쌍의 머리부전조금형이 구비되고, 각 머리부전조금형의 대향면 하부에는 연결볼트의 몸통부가 놓여 구르도록 몸통부구름면이 형성되고, 각 머리부전조금형의 대향면 상부에는 한쪽 끝에서 다른 쪽 끝으로 갈수록 폭과 높이가 증가되어 잘록부가 만들어지도록 잘록부성형돌기가 형성되며, 각 머리부전조금형의 잘록부성형돌기의 상부에는 한쪽 끝에서 다른 쪽 끝으로 갈수록 반경이 점차 커져 볼록면이 만들어지도록 볼록면성형홈이 형성되도록 구성되어 있다.The present invention is formed by the forging method of the head and the cross groove of the connecting bolt connecting the plate and the furniture plate in the forging method, the convex surface for the cam catch formed on the bottom of the head is formed in the rolling method, but the cross groove is not crushed during the rolling process. The connection bolt rolling molding machine for furniture, in which the productivity of the connection bolt is improved and the head part is produced by the rolling method to reduce the noise, thereby improving the working environment. In particular, the connection bolt connecting the plate and the furniture plate for furniture In the connection bolt forming machine for forming a convex surface and a convex portion on the head to convex the fastening cam coupled to the furniture plate, a pair of head auxiliary dies is provided, and the lower face of each head minor die is provided. There is a trunk cloud surface so that the trunk of the connecting bolt is placed and rolled, and each head supporting die is opposed to each other. In the upper part, the width and height increase from one end to the other end, and the constriction forming protrusions are formed so that the constriction is made. The upper part of the constriction forming protrusions of each head-joining mold has a radius from one end to the other end. It is configured to form a convex surface forming groove so as to gradually increase the convex surface.
Description
본 고안은 가구용 연결볼트 전조 성형기에 관한 것으로서, 더욱 상세하게는 가구용 판재와 판재를 연결하기 위한 연결볼트의 머리부를 전조 방식으로 성형하되 머리부에 형성된 십자홈이 찌그러지지 않고 원형을 유지하도록 함으로써, 연결볼트의 생산속도가 향상되어 원가를 절감할 수 있는 가구용 연결볼트 전조 성형기에 관한 것이다.The present invention relates to a connecting bolt rolling molding machine for furniture, and more particularly, by molding the head of the connecting bolt for connecting the furniture plate and the plate in a rolling manner, so that the cross groove formed in the head is maintained without being crushed, The present invention relates to a connection bolt roll forming machine for furniture, which can reduce cost by improving the production speed of the connection bolt.
일반적으로 도 1에 도시된 바와 같이 두 개의 가구용 판재를 결합시킬 때 연결볼트와 체결캠(8)이 사용된다. 한쪽 판재(10)에 연결볼트를 체결시키고 다른쪽 판재(10)에 체결캠(8)을 고정시킨 뒤 이들 두 개의 판재(10)를 서로 연결하면 연결볼트의 머리부(2)가 체결캠(8) 내부로 들어간다. 이때 체결캠(8)을 한 방향으로 회전시키면 캠 내부에 형성된 캠홈(9)의 방향이 바뀌면서 연결볼트의 머리부(2)가 체결캠(8)에 걸려 구속된 상태로 두 개의 판재(10)가 서로 결합된다.Generally, as shown in FIG. 1, when connecting two furniture plates, a connecting bolt and a fastening cam 8 are used. When the connecting bolt is fastened to one plate 10 and the fastening cam 8 is fixed to the other plate 10, and then the two plates 10 are connected to each other, the head 2 of the connecting bolt is fastened to the cam ( 8) Go inside. At this time, when the fastening cam 8 rotates in one direction, the direction of the cam groove 9 formed inside the cam is changed, and the head part 2 of the connecting bolt is caught by the fastening cam 8 and the two plate members 10 are restrained. Are combined with each other.
연결볼트에 형성된 머리부(2)는 두 가지 기능을 하는 것으로서, 십자드라이버와 같은 공구를 이용해 연결볼트를 회전시키기 위한 십자홈(6)과 체결캠(8)의 캠홈(9)에 걸리는 볼록면(5)이 각각 형성돼야 한다.The head portion 2 formed on the connection bolt has two functions, and a convex surface that is caught by the cross groove 6 and the cam groove 9 of the fastening cam 8 for rotating the connecting bolt using a tool such as a Phillips screwdriver. (5) should be formed respectively.
종래에는 연결볼트의 머리부(2)를 단조 방식으로 성형하는 과정에서 1차로 십자홈(6)을 형성한 뒤 2차로 볼록면(5)을 각각 분할 성형하였다. 그러나 단조방식은 잘 알려진 바와 같이 하부금형에 머리부(2)를 올려놓고 상부금형을 눌러 성형하는 방식임으로 생산속도가 느리고 상부금형이 승강되는 과정에서 소음이 심하기 때문에 작업환경이 나쁜 등의 단점이 있었다.Conventionally, in the process of forming the head part 2 of the connecting bolt by a forging method, the cross grooves 6 are formed first, and then the convex surfaces 5 are respectively divided and molded. However, the forging method is a method in which the head (2) is placed on the lower mold and the upper mold is pressed to form the mold. As a result, the production speed is slow and the noise is severe in the process of lifting the upper mold. there was.
본 고안은 종래의 문제점을 감안하여 개발한 것으로서, 본 고안의 목적은 가구용 판재와 판재를 연결시키는 연결볼트의 머리부와 십자홈은 단조방식으로 형성하고 머리부 아래쪽에 만들어진 캠 걸림용 볼록면은 전조방식으로 형성하되 전조과정에서 십자홈이 찌그러지지 않도록 전조금형의 형상을 개선함으로써, 연결볼트의 생산성이 향상되고 전조방식으로 머리부를 생산함으로 소음이 감소되어 작업환경이 개선되는 가구용 연결볼트 전조 성형기를 제공함에 있다.The present invention was developed in view of the conventional problems, and the object of the present invention is to form a forging method of the head and the cross groove of the connecting bolt connecting the plate and the plate for furniture in the forging method and the convex surface for cam locking is made under the head Formed by rolling method, but by improving the shape of the rolling die to prevent the cross groove from being crushed during the rolling process, the productivity of the connecting bolt is improved and the production method of the head by the rolling method reduces the noise by improving the working environment. In providing.
도 1a,b는 일반적인 가구용 연결볼트의 사용상태를 나타낸 사시도Figure 1a, b is a perspective view showing the state of use of the connection bolt for a general furniture
도 2는 본 고안 가구용 연결볼트의 정면도Figure 2 is a front view of the connection bolt for furniture of the present invention
도 3a,b는 본 고안 연결볼트의 머리부 전조 과정을 나타낸 사시도Figure 3a, b is a perspective view showing the head rolling process of the connection bolt of the present invention
도 4a,b는 본 고안 연결볼트의 나사부 전조 과정을 나타낸 사시도Figure 4a, b is a perspective view showing the thread rolling process of the connection bolt of the present invention
<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>
1 : 몸통부 2 : 머리부1: torso 2: head
3 : 나사부 4 : 잘록부3: thread part 4: narrow part
5 : 볼록면 6 : 십자홈5: convex surface 6: cross groove
7 : 나사머리 8 : 체결캠7: screw head 8: fastening cam
9 : 캠홈 10 : 판재9: cam groove 10: plate
20 : 머리부전조금형 21 : 몸통부구름면20: head failure mold 21: trunk cloud surface
22 : 잘록부성형돌기 23 : 볼록면성형홈22: convex forming protrusion 23: convex surface forming groove
30 : 나사부전조금형 31 : 몸통부구름면30: thread fixing die 31: body portion cloud surface
32 : 나사부성형홈 33 : 나사머리성형홈32: screw forming groove 33: screw head forming groove
상기 목적을 달성하기 위하여 본 고안은 가구용 판재와 판재를 연결하는 연결볼트의 머리부에 볼록면과 잘록부를 형성하여 가구용 판재에 결합된 체결캠에 볼록면이 걸리도록 하기 위한 연결볼트 성형기에 있어서, 한쌍의 머리부전조금형이 구비되고, 각 머리부전조금형의 대향면 하부에는 연결볼트의 몸통부가 놓여 구르도록 몸통부구름면이 형성되고, 각 머리부전조금형의 대향면 상부에는 한쪽 끝에서 다른 쪽 끝으로 갈수록 폭과 높이가 증가되어 잘록부가 만들어지도록 잘록부성형돌기가 형성되며, 각 머리부전조금형의 잘록부성형돌기의 상부에는 한쪽 끝에서 다른 쪽 끝으로 갈수록 반경이 점차 커져 볼록면이 만들어지도록 볼록면성형홈이 형성되도록 구성되어 있다.In order to achieve the above object, the present invention has a convex surface and a convex portion formed on the head of the connecting bolt connecting the plate for furniture and the plate, so that the convex surface is caught on the fastening cam coupled to the plate for furniture, A pair of head-joining molds is provided, and a body cloud surface is formed so that the trunk portion of the connecting bolt is placed on the lower side of each head-joining mold, and the upper side of each head-joining mold is different from one end. Towards the end, the width and height increase to form the constriction forming protrusions to form the constriction. The upper part of the constriction forming projections of each head supporting mold has a radius that gradually increases from one end to the other end so that the convex surface becomes larger. Convex surface forming groove is formed to be made.
이하 본 고안의 바람직한 실시예를 첨부 도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 고안 가구용 연결볼트의 정면도이다. 본 고안의 연결볼트는 몸통부(1)와 이의 상,하단에 형성된 머리부(2) 및 나사부(3)로 구성된다. 도 2에 도시된 바와 같이 좌측에 있는 연결볼트는 단조 공정을 통해 기본적인 머리부(2)와 몸통부(1) 및 머리부(2)의 십자홈(6) 만 형성된 것이다. 이러한 단조 공정을 통해 연결볼트를 대량으로 생산한 뒤 전조 공정으로 볼록면(5)과 나사부(3)를 연속으로 성형할 수 있다.Figure 2 is a front view of the connection bolt for furniture of the present invention. The connection bolt of the present invention is composed of a body portion (1) and the head portion (2) and the screw portion (3) formed on the upper and lower ends thereof. As shown in FIG. 2, the connecting bolt on the left side is formed of only the basic head 2, the body 1, and the cross groove 6 of the head 2 through the forging process. Through the forging process, a large amount of connecting bolts may be produced, and then the convex surface 5 and the threaded portion 3 may be continuously formed by the rolling process.
전조금형은 도 3 및 도 4에 도시된 바와 같이 머리부전조금형(20)과 나사부전조금형(30)으로 구성된다.The rolling die is composed of a head-joining die 20 and a screw-joining die 30 as shown in Figs.
머리부전조금형(20)은 한쌍으로 구성되며 이들의 각 대향면 하단에는 몸통부(1)가 구르기 위한 몸통부구름면(21)이 형성되고 상단에는 머리부(2) 하단에 형성된 잘록부(4)를 성형하기 위한 잘록부성형돌기(22)가 돌출 형성되며 이 잘록부성형돌기(22)의 상단에 볼록면성형홈(23)이 각각 형성된다. 이들 잘록부성형돌기(22)와 볼록면성형홈(23)은 전조량이 점차 증가되도록 전조작업 진행방향으로 경사짐과 동시에 잘록부(4)를 성형하기 위해 돌출되고 볼록면(5)을 성형하기 위해 오목하게 파여 있다.The head miscellaneous die 20 is composed of a pair, and at the bottom of each of the opposing faces, a trunk part cloud surface 21 for rolling the trunk part 1 is formed, and the upper part of the head part 2 formed at the bottom of the head part 2 ( 4) The convex surface forming grooves 22 for forming the protrusions are formed, and the convex surface forming grooves 23 are formed on the upper ends of the convex surface forming protrusions 22, respectively. These convex forming protrusions 22 and the convex surface forming grooves 23 are inclined in the direction of the rolling operation to increase the amount of rolling, and at the same time, they protrude to form the convex portion 4 and to form the convex surface 5. In order to be recessed.
잘록부성형돌기(22)와 볼록면성형홈(23)을 형성하기 위한 경사량과 돌출량 및 파여진 깊이는 연결볼트의 규격에 따라 다양하지만 머리부(2)에 형성된십자홈(6)이 찌그러지지 않도록 하기 위해 도 2에 도시된 볼록면성형홈(23)과 머리부(2) 사이에 틈새(G)가 있어야 된다.The amount of inclination, the amount of protrusion and the depth of cut for forming the constriction forming protrusion 22 and the convex surface forming groove 23 vary depending on the size of the connecting bolt, but the cross groove 6 formed in the head 2 is In order not to be crushed, there must be a gap G between the convex surface forming groove 23 and the head 2 shown in FIG. 2.
잘록부(4)는 체결캠(8)의 캠홈(9)에 끼워지는 부분임으로 몸통부(1)보다 직경이 작게 형성된다. 전조과정에서 한쪽 금형(20)은 고정시키고 다른 금형(20)을 밀어주면 이들 사이에 놓인 연결볼트가 굴러가면서 금형의 형상대로 성형된다. 따라서 잘록부성형돌기(22)에 몸통부(1)의 외주면이 눌리면 일부는 머리부(2) 쪽으로 올라가고 일부는 몸통부(1) 쪽으로 내려가게 되며 이때 머리부(2) 쪽으로 눌려 올라간 부분이 볼록면성형홈(23)에서 볼록면(5)으로 형성된다.The cutout portion 4 is a portion that fits into the cam groove 9 of the fastening cam 8 and is formed to have a smaller diameter than the trunk portion 1. In the rolling process, one mold 20 is fixed and the other mold 20 is pushed, and a connection bolt placed between them is rolled to be molded in the shape of the mold. Therefore, when the outer peripheral surface of the trunk portion (1) is pressed against the constriction forming protrusion (22), some of the portion rises toward the head (2) and some of the portion goes down toward the body (1), and at this time, the portion of the body pressed toward the head (2) is convex. The convex surface 5 is formed in the surface forming groove 23.
볼록면성형홈(23)은 머리부(2)보다 약간 큰 틈새(G)를 갖고 있기 때문에 볼록면(5)이 형성되는 동안 머리부(2)는 볼록면성형홈(23)에 간섭되지 않게 되어 내부의 십자홈(6)이 찌그러지지 않고 원형을 유지하게 된다.Since the convex surface forming groove 23 has a gap G slightly larger than the head 2, the head 2 does not interfere with the convex surface forming groove 23 while the convex surface 5 is formed. The inner cross groove 6 is not crushed to maintain a circular shape.
도 4a,b는 본 고안 나사부 전조금형을 나타낸 사시도로써, 나사부전조금형(30)은 한쌍으로 구성되며 대향면 상부에는 몸통부(1)가 놓이는 몸통부구름면(31)이 형성되고 하부에는 나사부(3)를 성형하기 위한 나사부성형홈(32)과 나사머리성형홈(33)이 각각 형성된다.Figure 4a, b is a perspective view showing a threaded part rolling die of the present invention, the threaded die casting mold 30 is composed of a pair, the upper surface of the body is formed with a body part cloud surface 31 on which the body portion (1) is placed and the lower threaded portion (3) The threaded shaping grooves 32 and the screw head shaping grooves 33 for forming are respectively formed.
이처럼 구성된 본 고안은 단조 공정으로 만들어진 머리부(2)를 전조 공정에서 잘록부(4)와 볼록면(5)이 만들어지도록 한 것으로서 이는 다음과 같다. 먼저 한쌍의 머리부전조금형(20)의 사이에 연결볼트의 몸통부(1)를 끼운 뒤 한쪽 머리부전조금형(20)은 고정시키고 다른 쪽 전조금형(20)을 이동시키면 몸통부(1)의 상단에 잘록부(4)와 볼록면(5)이 형성된다.The present invention configured as described above is to make the convex portion (4) and the convex surface (5) in the forging process head portion (2) made in the forging process, which is as follows. First, insert the body part (1) of the connection bolt between the pair of head support dies (20) and then fix the one head support die (20) and move the other roll die (20) to the trunk (1) At the top of the convex portion 4 and the convex surface 5 is formed.
전조금형(20)의 잘록부성형돌기(22)와 볼록면성형홈(23)은 돌출되고 오목하게 파여 있기 때문에 몸통부(1)의 일부가 이들 형상대로 만들어진다. 그리고 서로 대응되는 볼록면성형홈(23)의 사이에 머리부(2)가 놓인 상태에서 이들 사이의 틈새(G)로 인하여 볼록면(5) 성형시 머리부(2)가 찌그러지지 않음으로 십자홈(6)의 형태를 원형으로 유지시킬 수 있다.Since the convex part forming projections 22 and the convex surface forming grooves 23 of the rolling die 20 are protruded and concavely dug, a part of the trunk portion 1 is made in these shapes. In addition, the head 2 is not crushed when forming the convex surface 5 due to the gap G therebetween in the state where the head 2 is placed between the convex surface forming grooves 23 corresponding to each other. The shape of the groove 6 can be kept circular.
잘록부(4)와 볼록면(5)을 형성하고 나면 나사부 전조를 시행한다. 한쌍의 나사부성형금형(30) 사이에 연결볼트의 몸통부(1)를 끼운 뒤 위의 과정을 반복하면 몸통부(1)의 하부에 나사부(3)와 나사머리(7)가 각각 형성된다.After forming the convex portion (4) and the convex surface (5), thread rolling is performed. After inserting the body portion (1) of the connecting bolt between the pair of threaded molding (30) and repeat the above process, the threaded portion (3) and the screw head (7) is formed in the lower portion of the body portion (1), respectively.
이상에서와 같이 본 고안에 따르면 가구용 판재를 연결하기 위한 연결볼트의 머리부를 전조 방식으로 형성하기 때문에 생산성이 향상되는 효과가 있다. 그리고 전조과정에서 머리부에 형성된 십자홈의 형태가 찌그러지지 않고 원형을 유지함으로 제품의 신뢰성이 향상되며 전조시 소음이 적기 때문에 작업환경이 개선되는 등의 효과가 있다.As described above, according to the present invention, since the head of the connection bolt for connecting the plate for furniture is formed by a rolling method, productivity is improved. And the shape of the cross-shaped groove formed on the head during the rolling process is maintained without being distorted, thereby improving the reliability of the product and improving the working environment because there is less noise during rolling.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020020020930U KR200295779Y1 (en) | 2002-07-12 | 2002-07-12 | Joint bolt die for furniture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020020020930U KR200295779Y1 (en) | 2002-07-12 | 2002-07-12 | Joint bolt die for furniture |
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| Publication Number | Publication Date |
|---|---|
| KR200295779Y1 true KR200295779Y1 (en) | 2002-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666075A (en) * | 2019-11-18 | 2020-01-10 | 黎东 | Screw cold heading forming device |
| KR102134221B1 (en) | 2019-12-19 | 2020-07-15 | 최희경 | Bolts for joining furniture and manufacturing method thereof |
-
2002
- 2002-07-12 KR KR2020020020930U patent/KR200295779Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666075A (en) * | 2019-11-18 | 2020-01-10 | 黎东 | Screw cold heading forming device |
| KR102134221B1 (en) | 2019-12-19 | 2020-07-15 | 최희경 | Bolts for joining furniture and manufacturing method thereof |
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