KR860002408Y1 - Apparatus for inclined hole undercut of injection mold - Google Patents

Apparatus for inclined hole undercut of injection mold Download PDF

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Publication number
KR860002408Y1
KR860002408Y1 KR2019840011442U KR840011442U KR860002408Y1 KR 860002408 Y1 KR860002408 Y1 KR 860002408Y1 KR 2019840011442 U KR2019840011442 U KR 2019840011442U KR 840011442 U KR840011442 U KR 840011442U KR 860002408 Y1 KR860002408 Y1 KR 860002408Y1
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KR
South Korea
Prior art keywords
fixed side
side plate
plate
inclined hole
injection mold
Prior art date
Application number
KR2019840011442U
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Korean (ko)
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KR860005918U (en
Inventor
최정범
Original Assignee
주식회사 금성사
허신구
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Priority to KR2019840011442U priority Critical patent/KR860002408Y1/en
Publication of KR860005918U publication Critical patent/KR860005918U/en
Application granted granted Critical
Publication of KR860002408Y1 publication Critical patent/KR860002408Y1/en

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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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4478—Removing or ejecting moulded articles for undercut articles using non-rigid undercut forming elements, e.g. elastic or resilient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/058—Undercut

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

내용 없음.No content.

Description

사출금형의 경사구멍 언더컷(Under Cut)처리장치Inclined Hole Under Cut Treatment Device of Injection Mold

제1도는 본 고안의 조립상태 단면도.1 is a cross-sectional view of the assembled state of the present invention.

제2도는 본 고안의 1차적 작동상태를 나타낸 단면도.2 is a cross-sectional view showing a primary operating state of the present invention.

제3도는 본 고안의 2차적 작동상태를 나타낸 단면도.3 is a cross-sectional view showing a secondary operating state of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 고정측형판 1a : 경사안내면1: fixed side plate 1a: inclined guide surface

3 : 고정측설치판 4 : 승강안내봉3: fixed side mounting plate 4: lifting guide bar

5 : 우레탄고무 6 : 경사블록5: urethane rubber 6: inclined block

6a : 걸고리 8 : 슬라이드코어6a: hook 8: slide core

8a : 걸림턱 8b : 코어핀8a: Hanging Jaw 8b: Core Pin

9 : 압축코일스프링9: Compression Coil Spring

본 고안은 사출성형금형에 있어서 일반적으로 사용되는 방법으로 처리할 수 없는 경시진 구멍형상의 언더컷을 처리하기 위한 사출금형의 언더컷 처리장치에 관한 것이다.The present invention relates to an undercut processing apparatus of an injection mold for processing a time-lapse undercut that cannot be processed by a method generally used in an injection molding mold.

종래에는 경사진 구멍형상의 언더컷을 처리해야 할 경우 상당한 난제로 생각되었으며, 단지 유압실린더를 사용하는 방법 뿐인 것이어서 유압실린더 자체의 크기 때문에 금형의 크기가 매우 커지게 되어 비경제적인 것이며, 그 취급이 매우 불편한 문제점이 있는 것이었다.Conventionally, when it is necessary to process inclined hole undercut, it was considered as a considerable difficulty, and it is only a method of using a hydraulic cylinder, which is uneconomical because the size of the mold becomes very large due to the size of the hydraulic cylinder itself. There was an uncomfortable problem.

본 고안은 상기한 바와 같은 종래의 문제점을 해결하여 경사진 구멍형상의 언더컷을 처리함에 있어 유압실린더를 사용하지 않게 하여 금형의 크기를 보다 작게하고, 정확한 작동 및 취급을 간편하게 함에 그 목적이 있는 것으로 첨부도면에 의거 그 내용을 상세히 설명하면 다음과 같다. 즉, 고정측형판(1)과 가동측형판(2)이 분리작동되는 통상의 2단 금형구조에 있어서, 고정측형판(1)의 상측에 고정측설치판(3)을 설치하여 승강안내봉(4)에 의해 분리작동토록 구성하고, 고정측설치판(3)에는 스프링역활을 하는 우레탄고무(5)를 설치하여 그 일측에다 걸고리(6a)를 가진 경사블록(6)을 보울트(7)로 고정시키고, 동경사블록(6)의 걸고리(6a)에 걸리도록한 걸림턱(8a)과 경사구멍처리용코어핀(8b)이 형성되며 압축코일스프링(9)을 내설시킨 슬라이드코어(8)를 고정측형판(1)의 경사안내면(1a)을 타고 슬라이딩되게 설치하여서 됨을 특징으로 하는 사출금형의 경사구멍 언더컷 처리장치인 것이다.The present invention is to solve the conventional problems as described above to avoid the use of hydraulic cylinder in the inclined hole-shaped undercut to reduce the size of the mold, and to simplify the accurate operation and handling of the object According to the accompanying drawings, the contents are described in detail as follows. That is, in the conventional two-stage mold structure in which the fixed side plate 1 and the movable side plate 2 are operated separately, the fixed side mounting plate 3 is provided on the upper side of the fixed side plate 1, and the lifting guide bar is provided. The urging rubber (5) having a hook (6a) on one side of the fixed side mounting plate (3) is provided with urethane rubber (5) acting as a spring, and the bolt (7) And a locking jaw (8a) and an inclined hole processing core pin (8b) formed to be fixed to the hook (6a) of the inclined block (6), and the slide core (8) incorporating the compression coil spring (9). ) Is an inclined hole undercut treatment apparatus of the injection mold, characterized in that the sliding side is installed to slide on the inclined guide surface (1a) of the fixed side plate (1).

첨부도면중 미설명부호 10은 슬라이드코어(8)의 행정거리를 한정시켜 주는 소켓보울트를 나타내는 것이며, a는 성형품, 11은 이젝터플레이트, 12는 성형품(a)취출용 이젝터핀을 각각 나타내는 것이다.In the accompanying drawings, reference numeral 10 denotes a socket bolt for limiting the stroke distance of the slide core 8, a denotes a molded article, 11 an ejector plate, and 12 denotes an ejector pin for ejecting the molded article (a).

본 고안의 작동상태를 첨부도면에 의거 상세히 설명하면, 먼저 제1도에서와 같이 금형이 닫힌 상태에서 수지를 사출하여 성형품(a)이 고화되면 스프링역활을 하는 압축상태의 우레탄고무(5)의 팽창되려는 탄성에 의해 제2도에서와 같이 고정측설치판(3)이 상승되면서 고정축형판(1)과 분리되어 열리게되는데 이때 고정측설치판(3)에 보울트(7)에 의해 고정설치시킨 경사블록(6)의 걸고리(6a)가 슬라이드코어(8)의 걸림턱(8a)에 걸린 상태로 슬라이드코어(8)를 잡어당겨주므로서 슬라이드코어(8)는 고정측형판(1)의 경사안내면(1a)을 타고 경사지게 상승되어 코어핀(8b)이 성형품(a)의 경사구멍(a')에서 빠져나오게 되고, 이후 걸림턱(8a)과 걸고리(6a)가 이탈된 상태에서 슬라이드코어(8)는 압축코일스프링(9)의 탄발력에 의해 소켓보울트(10)가 돌출된 곳까지 경사안내면(1a)을 타고 상승지지케 되는 것이다. 다음에는 제3도에서와 같이 승강안내봉(4)이 고정측형판(1)을 끌어올려 주므로서 고정측형판(1)과 가동측형판(2)이 분리되면서 이젝터플레이트(11)에 설치된 이젝터핀(12)에 의해 성형품(a)이 취출되는 것이다.Referring to the operation state of the present invention in detail based on the accompanying drawings, as shown in FIG. 1, the injection of the resin in the closed state of the mold as shown in Fig. As shown in FIG. 2, the fixed side mounting plate 3 is lifted apart from the fixed shaft plate 1 by the elasticity to be expanded, and the fixed side mounting plate 3 is fixed to the fixed side mounting plate 3 by bolts 7. The slide core 8 is inclined of the fixed side plate 1 by pulling the slide core 8 while the hook 6a of the inclined block 6 is caught by the catching jaw 8a of the slide core 8. The core pin 8b comes out from the inclined hole a 'of the molded article a' by being inclined ascendingly on the guide surface 1a, and then the slide core (8a) and the hook 6a are separated from each other. 8) is inclined to the place where the socket bolt 10 protrudes by the elastic force of the compression coil spring (9) It is to be lifted up on the surface (1a). Next, as shown in FIG. 3, the lift guide bar 4 pulls up the fixed side plate 1 while the fixed side plate 1 and the movable side plate 2 are separated, and the ejector installed on the ejector plate 11. The molded article a is taken out by the pin 12.

본 고안은 상술한 바와 같이 고정측형판(1)에서 분리되게 구성한 고정측설치판(3)의 승강에 따라 작동되도록한 슬라이드코어(8)에 의해 성형품(a)에 경사지게 형성되는 경사구멍의 언더컷처리 상태가 양호하게 되는 것이어서 종래에 부피가 큰 유압실린더를 사용하던 것보다 금형의 크기를 작게할 수가 있는 것이며, 그 취급이 간편하고 정확한 작동을 기대할 수 있는 것이어서 다음 매우 경제적이고 실용적인 효과를 제공하여 주는 것이다.The present invention has an undercut of an inclined hole formed to be inclined in the molded article a by the slide core 8 which is operated according to the lifting and lowering of the fixed side mounting plate 3 configured to be separated from the fixed side mold plate 1 as described above. It is possible to reduce the size of the mold compared to the conventional hydraulic cylinder that is bulky, so that the handling is easy and accurate operation can be expected, thus providing the next very economical and practical effect. To give.

Claims (1)

고정측형판(1)과 가동측형판(2)이 분리작동되는 통상의 2단 금형구조에 있어서, 고정측형판(1)의 상측에 고정측설치판(3)을 설치하여 승강안내봉(4)에 의해 분리작동토록 구성하고, 고정측설치판(3)에는 스프링역활을 하는 우레탄고무(5)를 설치하여 그 일측에다 걸고리(6a)를 가진 경사블록(6)을 고정시키고, 걸고리(6a)에 걸리도록한 걸림턱(8a)과 경사구멍처리용코어핀(8b)이 형성되며 압축코일스프링(9)을 내설시킨 슬라이드코어(8)를 고정측형판(1)의 경사안매면(1a)을 타고 슬라이딩되게 설치하여서됨을 특징으로 하는 사출금형의 경사구멍 언더컷 처리 장치.In the conventional two-stage mold structure in which the stationary side plate 1 and the movable side plate 2 are operated separately, the fixed side mounting plate 3 is provided on the upper side of the stationary side plate 1, and the lifting guide bar 4 And urethane rubber (5) acting as a spring on the fixed side mounting plate (3) to fix the inclined block (6) with the hook (6a) on one side, and the hook (6a). The locking jaw 8a and the inclined hole processing core pin 8b are formed and the slide core 8 in which the compression coil spring 9 is installed is mounted on the inclined seat surface 1a of the fixed side plate 1. Slant hole undercut treatment apparatus of the injection mold, characterized in that the sliding to install a).
KR2019840011442U 1984-11-13 1984-11-13 Apparatus for inclined hole undercut of injection mold KR860002408Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840011442U KR860002408Y1 (en) 1984-11-13 1984-11-13 Apparatus for inclined hole undercut of injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840011442U KR860002408Y1 (en) 1984-11-13 1984-11-13 Apparatus for inclined hole undercut of injection mold

Publications (2)

Publication Number Publication Date
KR860005918U KR860005918U (en) 1986-06-14
KR860002408Y1 true KR860002408Y1 (en) 1986-09-24

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KR2019840011442U KR860002408Y1 (en) 1984-11-13 1984-11-13 Apparatus for inclined hole undercut of injection mold

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906816B1 (en) * 2008-04-07 2009-07-09 삼원금형정공주식회사 A hot runner injection mold for removing undercut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906816B1 (en) * 2008-04-07 2009-07-09 삼원금형정공주식회사 A hot runner injection mold for removing undercut

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Publication number Publication date
KR860005918U (en) 1986-06-14

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