KR900002402Y1 - Ejecting device for undercut articles - Google Patents

Ejecting device for undercut articles Download PDF

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Publication number
KR900002402Y1
KR900002402Y1 KR2019860021875U KR860021875U KR900002402Y1 KR 900002402 Y1 KR900002402 Y1 KR 900002402Y1 KR 2019860021875 U KR2019860021875 U KR 2019860021875U KR 860021875 U KR860021875 U KR 860021875U KR 900002402 Y1 KR900002402 Y1 KR 900002402Y1
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KR
South Korea
Prior art keywords
product
guide
groove
guide rod
injection
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Application number
KR2019860021875U
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Korean (ko)
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KR880011835U (en
Inventor
이윤식
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주식회사금성사
구자학
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Priority to KR2019860021875U priority Critical patent/KR900002402Y1/en
Publication of KR880011835U publication Critical patent/KR880011835U/en
Application granted granted Critical
Publication of KR900002402Y1 publication Critical patent/KR900002402Y1/en

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    • 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
    • B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
    • 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
    • B29C2045/4492—Removing or ejecting moulded articles for undercut articles preventing damage or deformation of undercut articles during ejection

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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

사출 금형 분리시 제품의 굽힘 방지장치Bending prevention device of product when removing injection mold

제 1 도는 본 고안에 의한 사출품의 사시도.1 is a perspective view of an injection molded product according to the present invention.

제 2 도는 본 고안의 사출 금형 조립상태 단면도.2 is a cross-sectional view of the injection mold assembly state of the present invention.

제 3 도는 본 고안의 사출 금형 분리 상태도로서 (a)는 1차 분리 상태도, (b)는 2차 및 3차 분리상태도.3 is an injection mold separation state diagram of the present invention (a) is a primary separation state, (b) is a secondary and tertiary separation state.

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

3 : 가동측 형판 3a : 구동홈3: movable side template 3a: driving groove

4 : 가이드봉 4a : 가이드홈4: guide rod 4a: guide groove

5 : 지지봉 6 : 고정편5: support rod 6: fixed piece

본 고안은 사출 성형 금형에 관한 것으로, 특히 제품 취출시 금형의 구조에 의한 제품 외형에 벤딩 현상이 발생하지 않도록 하는 제품의 굽히방지 장치에 관한 것이다.The present invention relates to an injection molding mold, and more particularly, to an apparatus for preventing bending of a product so that a bending phenomenon does not occur in the appearance of the product due to the structure of the mold when the product is taken out.

종래의 사출 상형 금형에서는 단순히 취출하기에 적당한 구조를 이루기 위해 사상을 철저히 하여 정밀도를 높히고, 빼기 구배를 크게 하였고, 작동시 물리는 부분을 대부분 삭제하여도 사출품의 형태에 의해 취출시에 벤딩이나 클랙현상이 발생하였다.In the conventional injection molding mold, the precision is improved by thorough finishing to increase the accuracy, the drafting is enlarged, and the bending part or the crack is removed at the time of ejection by removing the part that is bitten during operation. The phenomenon occurred.

즉 제 1 도와 같이 길이가 길고 홈이 있으면서 리브나 보스 형상이 있는 사출품을 성형할때에는 제 2 도의 구조에서 구동홈(3a), 가이드봉(4), 고정편(6)등이 없는 상태로 이루어진 사출성형 금형에 용융수지를 사출 공급하여 제품을 성형하고 사출품의 취출시 종래의 사출성형 금형에서는 제품에 대한 벤딩 방지 구조가 없어 테이퍼 블럭이 작동될때 사출품의 복잡한 형태에 의해서 분리도중에 리브와 보스가 있는 위치의 제품 표면이나 리브 및 보스에 벤딩 현상이 생기는 문제점이 있었다.In other words, when molding an injection-molded product having a length and a groove and having a rib or boss shape as shown in FIG. 1, the drive groove 3a, the guide rod 4, the fixing piece 6, etc. are not present in the structure of FIG. When injection molding molten resin into the injection molding mold, the product is molded, and when the injection molding product is ejected, the conventional injection molding mold does not have a bending preventing structure for the product. There was a problem that bending occurs on the surface of the product or ribs and bosses where the boss is located.

이러한 문제점을 해결하기 위해 안출한 본 고안은 가동축 형판의 테이프 면에 구동홈을 요설하여 가이드봉을 상기 구동홈에 수직하게 삽입하여 고정편으로 고정하고, 테이퍼 블럭에서 수평하게 유삽한 지지봉을 구동홈에 삽입하여 가이드의 가이드홈에 끼워지게 하므로서 사출금형 분리시 상승되는 테이퍼 블럭에서 제품의 수평적으로 분리되게 하여 복잡한 형상으로 된 제품이라도 리브나 보스위치의 표면 또는 리브 및 보스가 벤딩되지 않는 상태로 취출 되도록 한 것으로, 이를 첨부한 도면과 함께 상세히 설명하면 다음과 같다.In order to solve this problem, the present invention devises a driving groove on the tape surface of the movable shaft template to insert the guide rod perpendicularly to the driving groove to fix it with a fixed piece, and to drive the supporting rod horizontally inserted from the tapered block. The product is inserted into the groove to be inserted into the guide groove of the guide, so that the product is horizontally separated from the tapered block that is raised when the injection mold is separated. Even if the product has a complicated shape, the surface of the rib or boss switch or ribs and boss are not bent. To be taken out to, as described in detail with the accompanying drawings as follows.

제 2 도는 본 고안의 사출 금형 조립상태 단면도로서 사출성형 금형을 크게 나누어 고정측과 가동측으로 나누어지며 가동측에는 사출품의 내면을 형성하는 가동측 형판(3)에 테이퍼 코아(16)와 슬라이더 코아(15)가 구성되며 이젝트판(9)(10) 및 이젝트 스페이서(13) 그리고 가동측 설치판(11)으로 구성된다.2 is a cross-sectional view of the injection mold assembly according to the present invention. The injection molding die is divided into a fixed side and a movable side, and a tapered core 16 and a slider core (6) are provided on the movable side template 3 which forms the inner surface of the injection molded product on the movable side. 15 is composed of an eject plate (9) 10, an eject spacer (13) and a movable side mounting plate (11).

고정측에는 사출품의 외면을 형성하는 고정측 형판(2)과 로케이팅형관 런너스프루를 형성하는 고정측 설치판(1)으로 구성된다.On the fixed side, it consists of the fixed side template 2 which forms the outer surface of an injection molded product, and the fixed side mounting plate 1 which forms a locating tube runner sprue.

상기의 구성은 가동측 형판(3) 일측의 경사면에 상하 이동하는 테이퍼 블럭(16)을 설치하고, 좌우 이동하는 슬라이더 코아(15)를 가이드 레일(3C)에 삽입 설치한다.In the above configuration, the tapered block 16 which moves up and down on the inclined surface of one side of the movable side template 3 is inserted, and the slider core 15 that moves left and right is inserted into the guide rail 3C.

테이퍼 블럭(16)이 승하강하기 위해서 승하강 동작을 이루는 이젝트판(9)(10)과 테이퍼 블럭(16)을 가이드핀(8)으로 연결하고 특히 경사진면을 따라 상승할 수 있도록 가이드핀(8)을 경사지게 설치하고 레일(3C)에 삽지된 슬라이더 코아(15)를 좌우 이동할 수 있도록 경사핀(14)을 고정측형판(2)에 경사지게 설치하고 슬라이더 코아(15)에는 경사공(15a)을 뚫어 경사핀(14)과 경사공(15a)이 끼워지게 한다.In order for the taper block 16 to move up and down, the eject plate (9) and the taper block (16), which make the lifting and lowering operation, are connected to the guide pin (8), and in particular, the guide pin ( 8) inclinedly installed and the inclined pin 14 is inclined to the fixed side plate 2 so that the slider core 15 inserted in the rail 3C can be moved left and right, and the inclined hole 15a in the slider core 15. Through the inclined pin 14 and the inclined hole 15a to be fitted.

상기의 상하 좌우 이동성에 대해 가이드판(8)과 경사핀(14)은 경사진 기울기에 대한 이동폭이 이젝트판(9)(10)의 슬라이더(12)와 슬라이더홈(12a) 그리고 가동측 형판(15)의 유도홈(3d)에 의해 결정된다.The guide plate 8 and the inclined pin 14 have a moving width with respect to the inclined inclination of the slider plate 12, the slider groove 12a of the eject plate 9, 10, and the movable side template. It is determined by the guide groove 3d of (15).

상기의 구성중 제품의 벤딩을 방지하기 위해 테이퍼 블럭(16)이 경사지게 상승할때 제품을 수직으로 상승할 수 있도록 테이퍼 블럭(16)의 적당한 곳에 구멍을 뚫어 제품을 괘지할 수 있는 지지봉(5)을 끼우고 가동측형판(3)의 경사면에는 구동홈(3a)을 요설하고, 가동측 형판(3)의 저면에는 구동홈과 일치하는 통공을 뚫어 가이드봉(4)을 삽입하여 고정편(6)으로 가이드봉(4)을 고정한다.To prevent bending of the product during the above configuration, when the taper block 16 is inclined to rise, the support rod 5 which can hold the product by drilling a hole in the proper place of the taper block 16 so that the product can be vertically raised. Drive grooves 3a are provided on the inclined surface of the movable side plate 3, and the guide rod 4 is inserted into the bottom surface of the movable side plate 3 to insert the guide rods 4, ) To fix the guide rod (4).

그리고 가이드봉(4)을 삽입할때 지지봉(5)의 선단 안내돌기(5a)가 수직 방향의 가이드홈(4a)에 끼워지게 하여서 설치한다.When the guide rod 4 is inserted, the tip guide protrusion 5a of the support rod 5 is fitted into the guide groove 4a in the vertical direction.

이러한 구성으로된 본 고안은 사출후 수지가 응고하면 먼저 제 3 도의 (a)와 같이 고정측 형판(2)이 분리되면서 경사진(14)이 슬라이더 블럭(15)을 가동측 형판(3)에서 이동시키고 그리고 제 3 도 (b)와 같이 이젝트판(9)(10)이 상승하여 테이퍼 블럭(16)을 밀어올려 사출품(M)이 가동측 형판에서 분리된다.According to the present invention having such a configuration, when the resin solidifies after injection, the fixed side template 2 is separated as shown in FIG. 3 (a), and the inclined 14 moves the slider block 15 from the movable side template 3. The ejected plates M and 10 are lifted up and the tapered blocks 16 are pushed up to separate the injection-molded product M from the movable side template as shown in FIG.

이때 사출품(M)을 괘지하는 지지봉(5)이 테이퍼 블럭(16)과 함께 가이드홈(4a)을 따라 수직으로 상승하는 작용이 동시에 이루어진다.At this time, the support rod (5) to hold the injection molded product (M) and the tapered block 16 along with the guide groove (4a) to rise vertically at the same time takes place.

따라서 사출품(M)이 테이퍼 블럭(16)에서 분리되는 것으로 이러한 분리 작용은 금형 구조의 분리 과정에서 자연스럽게 이루어져 사출품(M)의 형태의 변형이 생기지 않게 된다.Therefore, the injection molded product (M) is separated from the tapered block (16). This separation action occurs naturally in the process of separating the mold structure, so that the deformation of the injection molded product (M) does not occur.

도면중 미설명 12는 가이드핀의 슬라이더로서 이젝트판이 상승할때 가이드핀의 경사진 각에 대해 슬라이더홈(12a)에서 이동한다.In the drawing, description 12 is a slider of the guide pin, which moves in the slider groove 12a with respect to the inclined angle of the guide pin when the eject plate is raised.

이상에서와 같이 본 고안은 사출품을 취출할때 금형의 구조를 이용하여 테이퍼 블럭이 경사 상승하면 사출품은 수직 상승되게 하여 금형 구조에서 자연스럽게 분리되어 제품의 치수 정도와 외관의 클럭 그리고 리브와 보스가 있는 위치의 표면이 오목해지거나 리브나 보스가 구부러지는 것을 방지하여 리브와 보스의 설치가 용이한 사출품의 가공성을 향상시켜주고 특히 금형기술을 향상시켜 생산 능률을 좋게하며 휨방지에 대한 구조가 간단하여 기존의 금형을 크게 개선시키지 않고서도 설치할 수 있는 제작상의 이점이 있는 것이다.As described above, the present invention, when the tapered block is inclined ascending by using the mold structure when taking out the injection molded product, the injection molded product is vertically raised so that it is naturally separated from the mold structure. It prevents concave surface or bent ribs or bosses, which improves the processability of injection-molded products that are easy to install ribs and bosses, and especially improves mold technology to improve production efficiency. It is simple and has manufacturing advantages that can be installed without significantly improving existing molds.

Claims (1)

사출 성형 금형의 고정측형판(2)의 분리와 동시에 경사핀(14)에 의해 슬라이더코아(15)가 이동하여 제품의 언더컷을 처리하면 테이프 블럭(16)이 가동축 형판(3)의 테이퍼 면을 따라 상승하여 제품과 분리되게 한 공지의 것에 있어서, 가동측형판(3)의 테이프 면에 구동홈(3a)을 요설하여 가이드봉(4)을 상기 구동홈에 수직하게 삽입하면서 테이프 블럭(16)의 상면에 대해 수평하게 끼워진 지지봉(5)의 안내돌기(5a)가 구동홈(3a)을 통해 가이드봉(4)의 가이드홈(4a)에 끼워지게 하여 고정핀(6)으로 가이드봉(4)을 가동축 형판(3)에 고정하고 테이퍼블럭(16)이 경사 상승할때 지지봉(5)이 가이드봉(4)의 가이드홈(4a)을 따라 제품(M)과 함께 수직 상승 하도록 구성하여 이루어진 것을 특징으로 하는 사출 금형 분리시 제품의 굽힘 방지 장치.When the fixed core plate 2 of the injection molding die is removed and the slider core 15 is moved by the inclined pin 14 to process the undercut of the product, the tape block 16 is tapered on the movable shaft template 3. In the known method of lifting up and separating from the product, the tape block 16 is inserted into the tape groove of the movable side plate 3 by inserting the guide rod 4 vertically into the drive groove. The guide protrusion 5a of the support bar 5 inserted horizontally with respect to the upper surface of the support rod 5a is fitted into the guide groove 4a of the guide rod 4 through the driving groove 3a, and then the guide rod (5) is fixed to the guide rod (5). 4) is fixed to the movable shaft template (3) and when the tapered block 16 is inclined upwardly, the support rod (5) is configured to rise vertically with the product (M) along the guide groove (4a) of the guide rod (4) Bending prevention device of the product during separation of the injection mold, characterized in that made.
KR2019860021875U 1986-12-30 1986-12-30 Ejecting device for undercut articles KR900002402Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019860021875U KR900002402Y1 (en) 1986-12-30 1986-12-30 Ejecting device for undercut articles

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Application Number Priority Date Filing Date Title
KR2019860021875U KR900002402Y1 (en) 1986-12-30 1986-12-30 Ejecting device for undercut articles

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KR880011835U KR880011835U (en) 1988-08-26
KR900002402Y1 true KR900002402Y1 (en) 1990-03-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921807B1 (en) * 2008-02-18 2009-10-16 현대자동차주식회사 Metallic pattern device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921807B1 (en) * 2008-02-18 2009-10-16 현대자동차주식회사 Metallic pattern device

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KR880011835U (en) 1988-08-26

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