KR950004241Y1 - Injection mould - Google Patents
Injection mould Download PDFInfo
- Publication number
- KR950004241Y1 KR950004241Y1 KR2019910006283U KR910006283U KR950004241Y1 KR 950004241 Y1 KR950004241 Y1 KR 950004241Y1 KR 2019910006283 U KR2019910006283 U KR 2019910006283U KR 910006283 U KR910006283 U KR 910006283U KR 950004241 Y1 KR950004241 Y1 KR 950004241Y1
- Authority
- KR
- South Korea
- Prior art keywords
- core
- movable
- cavity
- ground plane
- character
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
- B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 분해사시도.1 is an exploded perspective view of the present invention.
제2도는 본 고안의 조립된 상태의 단면도.2 is a cross-sectional view of the assembled state of the present invention.
제3도는 3.5인치 플로피 디스크의 어퍼쉘 구조.3 is an upper shell structure of a 3.5-inch floppy disk.
제4도는 제3도의 A-A선 확대 단면도.4 is an enlarged sectional view taken along the line A-A of FIG.
제5도는 종래의 금형 단면도.5 is a cross-sectional view of a conventional mold.
제6도는 종래의 문자코어가 변형된 상태의 단면도.6 is a cross-sectional view of a state in which a conventional character core is deformed.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 고정캐비티 3 : 삽착홈2: fixed cavity 3: insertion groove
5 : 받침코어 6 : 접지편5: support core 6: grounding piece
7,14 : 접지면 8 : 삽입부7,14: ground plane 8: insertion portion
9 : 가동형판 10 : 가동캐비티9: movable mold 10: movable cavity
11 : 끼움홈 12 : 문자코어11: fitting groove 12: character core
13 : 키이홈13: keyway
본 고안은 3.5인치 플로피 디스크의 어퍼쉘 측면 플래쉬 방지 금형구조에 관한 것으로써, 좀더 구체적으로는 후단부에 접지편이 형성된 받침코어의 일측면에 접지면을 갖도록하고, 타측 하부에는 일정길이가 개방되도록하여 고정캐비티에 형성된 삽착홈에 삽착하되, 가동형판이 분리면에 접합시 가동캐비티에 설치된 문자코어의 접지면이 받침코어의 접지면에 밀접되도록 하여, 3.5인치 플로피 디스크의 어퍼쉘 사출성형시 문자코어가 받침코어에 의해 견고하게 고정되므로써 플래쉬 및 버(BURR)등의 발생을 방지할 수 있도록 한 3.5인치 플로피 디스크의 어퍼쉘 측면 플래쉬 방지 금형구조에 관한 것이다.The present invention relates to an upper shell side anti-flash mold structure of a 3.5-inch floppy disk, and more specifically, to have a ground plane on one side of the support core having a ground piece formed at the rear end thereof, and to open a predetermined length in the lower part of the other side. When inserting into the insertion groove formed in the fixed cavity, the ground plane of the letter core installed in the movable cavity is close to the ground plane of the support core when the movable plate is bonded to the separation surface, when the upper shell injection molding of 3.5-inch floppy disk An upper shell side anti-flash mold structure of a 3.5-inch floppy disk to prevent the occurrence of flash and burrs by being firmly fixed by the support core.
일반적으로 3.5인치 플로피 디스크는 고밀도의 트랙(Traclc)를 갖도록 특수 장성체로 된 자기 디스크를 보호하기 위하여 쉘에 수납하는데 이러한 쉘은 정밀도를 유지하여야 하므로 정밀 금형으로 사출성형 하였는바, 종래에는 도시된 도면 제5도 및 제6도에서와 같이 양단이 경사면(31)(32)을 갖도록 형성된 문자코어(30)의 일측면을 가동캐비티(28)에 형성된 끼움홈(28')에 삽착시켜 가동캐비티(28)와 가동형판(27)에 대응되게 형성된 구멍(29)과 문자코어(30)의 키이홈(30')을 키이(33)로 고정하고, 이와 대향된 고정캐비티(23)의 분리면에는 양단이 경사면(25)(26)을 가진 요홈(24)을 형성하여 가동형판(27)이 고정형판(22)의 분리면에 접합시 문자코어(30)의 타측면이 고정캐비티(23)의 요홈(24)에 삽입되어 밀접되도록 하여 된 것으로써, 이와같은 종래의 금형은 사출성 형기에 설치된 가동형판(27)이 고정형판(22)의 분리 및 접합시 가동캐비티(28)에 설치된 문자코어(30)가 고정캐비티(23)의 요홈(24)에 밀접 및 탈락됨에 따라 서로 밀접되는 문자코어(30)의 정사면(31)(32)과 고정캐비티(23)의 요홈(24)의 경사면(25)(26)에 마모가 발생되고, 또한 가동형판(27)의 무게 하중에 의해 하측으로 처짐과 동시에 이에 설치된 가동 캐비티(28)와 문자코어(30)가 상기와 같이 처짐이 발생되어 문자코어(30)의 일단 경사면(32)이 이와 밀접된 고정캐비티(23)의 요홈(24)의 경사면 (26)으로 처짐으로 인하여 이곳에 마모가 발생되어 문자코어(30)타단 경사면(31)과 고정캐비티(23)의 요홈(24) 경사면(25)사이에는 공극(孔)이 발생되어, 이에 용융된 합성수지의 성형물이 투입되어져서 도시된 도면 제5도와 같이 3.5인치 플로피 디스크 어퍼쉘(P) 측면에 플래쉬 및 버(BURR : 34)등이 발생되어 제품의 불량을 유발시켜 생산성 및 제품의 품질 향상을 저해하는 문제점이 있었다.Generally, 3.5-inch floppy disks are stored in shells to protect magnetic disks made of specially grown bodies to have high density of tracks (Traclc). Since the shells must maintain precision, they are injection molded into precision molds. As shown in FIGS. 5 and 6, one side of the character core 30 formed to have inclined surfaces 31 and 32 at both ends is inserted into the fitting groove 28 'formed in the movable cavity 28 to move the movable cavity ( 28 and the key groove 30 'of the character core 30 and the hole 29 formed corresponding to the movable plate 27 are fixed with the key 33, and the separation surface of the fixing cavity 23 opposite to the hole 29 is fixed. Both ends form a recess 24 having inclined surfaces 25 and 26 so that the movable mold 27 is joined to the separated surface of the stationary plate 22 so that the other side of the character core 30 is formed of the stationary cavity 23. Inserted into the groove 24 to be in close contact, such a conventional mold is an injection molding machine When the movable die plate 27 installed in the movable core 28 is in close contact with each other as the letter core 30 installed in the movable cavity 28 comes into close contact with the groove 24 of the fixed cavity 23 when the movable plate 28 is separated and bonded. Abrasion occurs on the inclined surfaces 31 and 32 of the character core 30 and the inclined surfaces 25 and 26 of the recesses 24 of the fixed cavity 23, and also by the weight load of the movable plate 27. At the same time, the movable cavity 28 and the character core 30 installed therein sag as described above, so that one end of the inclined surface 32 of the character core 30 is in close contact with the recess 24 of the fixed cavity 23. Abrasion occurs here due to deflection to the inclined surface (26) of the) and the air gap (孔) between the inclined surface (25) of the groove (24) of the other end inclined surface (31) and the fixed cavity (23) ), And a molded product of molten synthetic resin is added thereto, causing flash and burrs (34) to occur on the side of the 3.5-inch floppy disk upper shell (P) as shown in FIG. There was a problem that inhibits the improvement of productivity and product quality.
따라서 본 고안은, 상기와 같은 종래의 문제점을 해결하기 위하여 안출한 것으로써, 후단부로 접지편이 형성된 받침코어의 일측면에 접지면을 갖도록 하고, 타측 하부에는 일정길이가 개방되도록 하여 고정캐비티에 형성된 삽착홈에 삽착하되, 고정형판에 가동형판이 접합시 가동캐비티에 설치된 문자코어의 타측 접지면이, 받침코어의 접지면에 밀접되도록 하므로써 3.5인치의 플로피 디스크의 어퍼쉘 사출 성형시 문자코어의 유동 및 위치 변형을 방지하여 플래쉬 및 버(BURR)가 발생하는 것을 방지한 것을 목적으로 한다.Therefore, the present invention, devised to solve the conventional problems as described above, to have a ground plane on one side of the support core formed with a ground piece to the rear end, and the other side is formed in the fixed cavity to open a certain length When inserting into the insertion groove, when the movable plate is joined to the stationary plate, the other ground plane of the letter core installed in the movable cavity is close to the ground plane of the support core, so that the flow of the letter core during the upper shell injection molding of the 3.5 inch floppy disk And it is aimed to prevent the occurrence of flash and burr (BURR) by preventing the position deformation.
이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
다수의 키이홈(13)이 형성된 문자코어(12)를 구멍(15)이 각각 형성된 가동형판(9)에 설치된 가동캐비티(10)의 끼움홈(11)에 삽입하여 키이(16)로 고정하게 된 것에 있어서, 상기 가동형판(9)에 대향하는 고정형판(1)에 설치된 고정캐비티(2)의 제품부(4) 양측에 형성된 삽착홈(3)에, 후단부로 접지편(6)을 형성하여 일측면에 접지면(7)가 타측에 일정길이의 삽입부(8)를 형성하여 된 받침코어(5)의 삽입부(8)를 억지찌움 삽착하되, 고정형판(1)에 가동형판(9)이 접합시 가동캐비티(10)에 설치된 문자코어(12)의 타측 접지면(14)이 받침코어(5)의 일측 접지면(7)에 밀접되도록 설치된 것이다.A character core 12 having a plurality of key grooves 13 formed therein is inserted into the fitting groove 11 of the movable cavity 10 installed in the movable plate 9 on which the holes 15 are formed, respectively, to be fixed with the keys 16. In this case, the ground piece 6 is formed in the insertion groove 3 formed on both sides of the product part 4 of the fixed cavity 2 provided in the stationary plate 1 opposite to the movable plate 9 at the rear end. By inserting the insertion portion 8 of the support core (5) by forming the insertion portion 8 of the predetermined length on the other side of the ground surface (7), but the movable die plate ( 9) is installed so that the other ground plane 14 of the character core 12 installed in the movable cavity 10 is in close contact with one ground plane 7 of the support core 5 at the time of joining.
이하 첨부된 도면에 의하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
고정 캐비티(2)의 제품부(4) 양측에 형성된 삽착홈(3)에 받침코어(5)에 타측에 형성된 삽입부(8)를 삽착시켜 고정형판(1)의 분활면에 가동형판(9)이 접합 및 분리시 가동캐비티(10)의 끼움홈(11)에 고정된 문자키이(12)의 타측 접지면(14)의 받침코어(5)의 일측 접지면(7)에 접지 및 탄력되도록 하였다.The inserting portion 8 formed on the other side of the supporting core 5 is inserted into the inserting groove 3 formed on both sides of the product portion 4 of the fixing cavity 2, and the movable die 9 is mounted on the divided surface of the fixing plate 1. ) Is grounded and resilient to one ground plane 7 of the support core 5 of the other ground plane 14 of the character key 12 fixed to the fitting groove 11 of the movable cavity 10 when joining and detaching. It was.
이러한 금형을 사출성형기(도면에 도시되지 않음)에 설치하여 가동 형판(9)이 고정형판(1)에 접합된 상태에서 융용된 합성수지재의 사출물을 금형의 제품부(4)에 유입시켜 제품(3.5 플로피 디스크의 어퍼쉘 : P)을 사출성형하게 되는데, 이때 가동캐비티(10)에 설치된 문자코어(12)의 접지면(14)이 받침코어(5)의 접지면(7)에 밀접되어 있어, 문자코어(12)가 견고하게 고정된 상태로 사출제품(P)을 성형할 수 있도록 하였다.This mold is installed in an injection molding machine (not shown in the drawing), and the injection molded product of the molten synthetic resin material is introduced into the product part 4 of the mold in a state in which the movable template 9 is bonded to the stationary plate 1. The upper shell of the floppy disk: P) is injection molded, wherein the ground plane 14 of the character core 12 installed in the movable cavity 10 is in close contact with the ground plane 7 of the support core 5, The letter core 12 was able to mold the injection product (P) in a firmly fixed state.
상술한 바와 같이 본 고안은, 고정형판에 설치된 고정캐비티의 삽착홈에 받침코어를 억지끼움으로 삽착하고, 이와 대향되는 가동형판에 설치된 가동캐비티의 끼움홈에 문자코어를 고정시켜, 가동형판이 고정형판에 분리 및 접합시 받침코어의 접지면에 문자코어의 접지면이 밀접 및 탈취되도록 하여 된 금형을 사출성형기에 설치하여 제품을 사출성형시 문자코어의 접지면이 받침코어의 접지면에 밀접되어 견고히 고정되므로써, 종래와 같이 문자코어의 일단부분의 마모 및 위치변형을 방지하여, 3.5인치 플로피 디스크의 어퍼쉘 측면에 플래쉬 및 버(BURR)등을 방지하여 제품의 품질을 향상시키고, 생산성을 높일 수 있도록 한 특징이 있다.As described above, the present invention forcibly inserts the support core into the insertion groove of the fixed cavity installed in the fixed mold plate, and fixes the character core to the fitting groove of the movable cavity installed in the movable plate opposite thereto, whereby the movable plate is fixed. When the mold is separated and bonded to the plate, the ground plane of the support core is closely attached to the ground plane of the support core, and the mold is installed in the injection molding machine. As it is firmly fixed, it prevents abrasion and positional deformation of one end of the character core as in the prior art, and prevents flash and burr on the upper shell side of the 3.5-inch floppy disk to improve product quality and increase productivity. There is one feature that makes it possible.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910006283U KR950004241Y1 (en) | 1991-05-03 | 1991-05-03 | Injection mould |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019910006283U KR950004241Y1 (en) | 1991-05-03 | 1991-05-03 | Injection mould |
Publications (2)
Publication Number | Publication Date |
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KR920021134U KR920021134U (en) | 1992-12-18 |
KR950004241Y1 true KR950004241Y1 (en) | 1995-05-24 |
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ID=19313455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR2019910006283U KR950004241Y1 (en) | 1991-05-03 | 1991-05-03 | Injection mould |
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Country | Link |
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KR (1) | KR950004241Y1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101138215B1 (en) * | 2009-08-14 | 2012-04-24 | 주영록 | Molding apparatus for manufacturing a dvd case |
-
1991
- 1991-05-03 KR KR2019910006283U patent/KR950004241Y1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101138215B1 (en) * | 2009-08-14 | 2012-04-24 | 주영록 | Molding apparatus for manufacturing a dvd case |
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Publication number | Publication date |
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KR920021134U (en) | 1992-12-18 |
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