KR850002977Y1 - An apparatus for undercut in the injection moulds - Google Patents
An apparatus for undercut in the injection moulds Download PDFInfo
- Publication number
- KR850002977Y1 KR850002977Y1 KR2019830009208D KR8309208D KR850002977Y1 KR 850002977 Y1 KR850002977 Y1 KR 850002977Y1 KR 2019830009208 D KR2019830009208 D KR 2019830009208D KR 8309208 D KR8309208 D KR 8309208D KR 850002977 Y1 KR850002977 Y1 KR 850002977Y1
- Authority
- KR
- South Korea
- Prior art keywords
- mold
- pin
- undercut
- lock
- groove
- Prior art date
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 따른 장치의 체결상태도.1 is a fastening state of the device according to the present invention.
제2도는 본 고안에 따른 장치에 쓰이는 코어핀의 평면도.2 is a plan view of a core pin used in the device according to the present invention.
제3도는 제1도의 분리상태도.3 is a separated state of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 록크 2 : 볼트1: lock 2: bolt
3 : 코어핀 4 : 머리부3: core pin 4: head
5 : 홈 6 : 다리부5: groove 6: leg portion
7 : 스트로크 조정핀 8 : 스프링7: Stroke adjustment pin 8: Spring
9 : 경사부9: inclined portion
본 고안은 사출 및 다이캐스팅 금형에서 작은 원형의 언더컷을 용이하게 처리하기 위한 장치에 관한 것이다.The present invention is directed to an apparatus for easily handling small round undercuts in injection and die casting molds.
종래에는 금형취부시 주로 하늘방향으로 향하는 작은 원형의 언더컷을 경사핀을 이용할 슬라이드 코어 방식에 의해 처리하여 왔으나 이는 경사핀에 의하여 슬라이드코어가 후퇴한 후 슬라이드코어의 처짐을 방지하기 위해 스프링과 볼트등으로 지지되어 있어 구조가 복잡하게 되었으며 가공시간이 길어졌으며, 금형의 크기가 커지고 또한 분해조립작업이 곤란하였다.Conventionally, when the mold is mounted, a small circular undercut mainly directed in the sky direction has been processed by a slide core method using an inclined pin, but this is a spring and a bolt to prevent the slide core from sagging after the slide core is retracted by the inclined pin. The structure is complicated, the processing time is long, the size of mold is large, and disassembly and assembly work are difficult.
본 고안은 상기한 점을 감안하여 안출된 것으로 스프링과 록크에 의하여 구조가 간단해지고 제작이 용이하며 또한 분해조립이 용이하게 되는 언더컷 처리장치를 제공하는 것이 그 목적이다.The object of the present invention is to provide an undercut treatment device which is designed in view of the above point, the structure is simple and easy to manufacture and easy disassembly and assembly by the spring and lock.
본 고안은 상기 금형의 고정측에 볼트(2)로 체결되어서 가동축까지 하향으로 연장되어 있으며 그 선단에 경사부(9)가 형성되어 있는 록크(1)와 금형의 가동측에 내장되어 있으며 상기 록크(1)의 경사부(9)와 접촉하는 원형의 머리부(4), 스트로크 조정핀(7)이 끼워지는 홈(5) 및 스프링(8)이 끼워져 있는 다리부(6)로 형성되는 코어핀(3)으로 구성되는 사출 및 다이캐스팅 금형의 언더컷 처리장치이다.The present invention is fastened with a bolt (2) on the fixed side of the mold and extends downward to the movable shaft and is embedded in the lock (1) and the movable side of the mold having the inclined portion (9) formed at its tip. Formed of a circular head 4 in contact with the inclined portion 9 of the lock 1, a groove 5 into which the stroke adjusting pin 7 is fitted, and a leg 6 into which the spring 8 is fitted. An undercut treatment apparatus for injection and die casting molds composed of core pins (3).
첨부된 도면을 참고하여 본 고안을 상세히 설명하기로 하자.The present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 장치를 설치한 금형의 닫힌 상태와 열린 상태가 각각 제1도와 제3도로 도시되어 있다.The closed and open states of the mold with the device according to the invention are shown in FIGS. 1 and 3, respectively.
또한 머리부(4), 홈(5) 및 다리부(6)로 형성되는 코어핀(3)의 형상이 스트로크 조정핀(7)과 관련되어 제2도에 상세히 도시되어 있다. 금형이 닫히는 과정에서 고정측에 볼트(2)로 체결되어 있는 록크(1)의 경사부(9)가 가동측에 내장되어 있는 코어핀(3)의 머리부(4)를 밀어부치게 되어 금형이 완전히 닫히게 되면 코어핀(3)의 다리부(6)가 성형부를 관통하게 된다. 한편, 금형이 열려지면 코어핀(3)은 스프링(8)의 탄발력에 의해 금형외부로 머리부(4)가 빠져나오게 되나 스트로크 조정핀(7)에 의해 코어핀(3)의 완전 이탈은 방지된다. 이때 다리부(6)는 성형부를 완전히 이탈하여 금형내부에 위치되므로 성형품에는 작은 원형의 구멍이 뚫리게 된다. 이후 밀핀(10)에 의해 성형품을 추출하게 된다.The shape of the core pin 3, which is formed of the head 4, the groove 5, and the leg 6, is also shown in detail in FIG. 2 in relation to the stroke adjusting pin 7. In the process of closing the mold, the inclined portion 9 of the lock 1 fastened to the fixed side with the bolt 2 pushes the head 4 of the core pin 3 embedded in the movable side. When this is completely closed, the leg portion 6 of the core pin 3 passes through the molding portion. On the other hand, when the mold is opened, the core pin 3 is pulled out of the head 4 by the elastic force of the spring (8), but the stroke pin (7) is completely separated from the core pin 3 Is prevented. At this time, since the leg part 6 is completely removed from the molding part and positioned inside the mold, a small circular hole is drilled in the molded product. Then, the molded article is extracted by the mill pin 10.
이상 설명된 바와 같이 본 고안에 따른 장치를 사용하면 간단한 구조를 갖는 것으로 작은 원형의 언더컷을 갖는 성형품의 제작이 용이하여 종래의 장치가 있던 제반 문제점이 해결되는 것이다.As described above, by using the apparatus according to the present invention, a simple structure can be easily manufactured with a molded article having a small circular undercut, and thus, all problems of the conventional apparatus are solved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830009208D KR850002977Y1 (en) | 1983-10-28 | 1983-10-28 | An apparatus for undercut in the injection moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019830009208D KR850002977Y1 (en) | 1983-10-28 | 1983-10-28 | An apparatus for undercut in the injection moulds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR850002977Y1 true KR850002977Y1 (en) | 1985-12-12 |
Family
ID=19231693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019830009208D KR850002977Y1 (en) | 1983-10-28 | 1983-10-28 | An apparatus for undercut in the injection moulds |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR850002977Y1 (en) |
-
1983
- 1983-10-28 KR KR2019830009208D patent/KR850002977Y1/en active
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