KR900005725Y1 - Undercut articles ejecting device in injection mould - Google Patents

Undercut articles ejecting device in injection mould Download PDF

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Publication number
KR900005725Y1
KR900005725Y1 KR2019870001452U KR870001452U KR900005725Y1 KR 900005725 Y1 KR900005725 Y1 KR 900005725Y1 KR 2019870001452 U KR2019870001452 U KR 2019870001452U KR 870001452 U KR870001452 U KR 870001452U KR 900005725 Y1 KR900005725 Y1 KR 900005725Y1
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KR
South Korea
Prior art keywords
pin
support plate
slide piece
assembled
ejector
Prior art date
Application number
KR2019870001452U
Other languages
Korean (ko)
Other versions
KR880016039U (en
Inventor
김태석
Original Assignee
삼성전자 주식회사
한형수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 삼성전자 주식회사, 한형수 filed Critical 삼성전자 주식회사
Priority to KR2019870001452U priority Critical patent/KR900005725Y1/en
Publication of KR880016039U publication Critical patent/KR880016039U/en
Application granted granted Critical
Publication of KR900005725Y1 publication Critical patent/KR900005725Y1/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
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B29C45/401—Ejector pin constructions or mountings
    • 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 없음No content

Description

사출 금형의 내부 양면 언더컷 처리장치Internal double sided undercut processing unit of injection mold

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

제2도는 (a)와 (b)는 본 고안의 작동상태 종단면도.2 is a longitudinal cross-sectional view of the operating state of the present invention (a) and (b).

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

1,1' : 형판 2 : 코어1,1 ': template 2: core

3,3' : 슬라이드편 4 : 코어편3,3 ': slide piece 4: core piece

5 : 걸림핀 6,6' : 에젝터핀5: Hanging pin 6,6 ': Ejector pin

7 : 핀 지지판 8 : 밀판7 pin support plate 8

9 : 에젝터핀 홀더 10,10' : 고정핀9: ejector pin holder 10,10 ': fixing pin

본 고안은 사출금형에 있어서 제품내주의 언더컷 처리 부분인 양변 또는 다수개의 언더컷 처리를 용이하게 되어 있음에 따라 종래의 구조적 결함을 해결하고 제품의 대량 생산을 할 수 있을 뿐만 아니라 작동상 안전성으로 인하여 제품의 품질향상을 기할 수 있게된 사출금형의 내부 양면 언더컷 처리장치에 관한 것이다.The present invention facilitates the processing of both sides or multiple undercuts, which are undercut treatment parts of the product's inner circumference of the injection mold, so that the conventional structural defects can be solved and the mass production of the products can be performed. The present invention relates to an internal double-sided undercut treatment apparatus of an injection mold that can improve the quality of the mold.

종래의 사출금형에 있어서는 언더컷 처리장치가 한정되어 있었끼 때문에 제품 특성상 사출 성형품을 얻기가 곤란하고 제품의 대량생산이 어려울 뿐만 아니라 작동상 안정성이 떨어짐에 따라 제품의 품질이 저하 되던 결점이 있었다.In the conventional injection mold, because the undercut treatment device is limited, it is difficult to obtain the injection molded product due to the characteristics of the product, it is difficult to mass-produce the product, and there is a defect that the quality of the product is deteriorated due to the deterioration in operational stability.

본 고안은 이와 같은 종래의 결점을 해겨하기 위하여 안출된 것으로 첨부된 도면에 의하여 그 구성과 작용효과를 설명하면 다음과 같다.The present invention has been devised to address such a conventional drawback and will be described below with reference to the configuration and effect by the accompanying drawings.

상부측 형판(1)의 하부로 하부측 코어(2) 내부에 경사면 및 구멍이 뚫린 상태에서 중앙 하단부면에 슬라이드편(3)을 삽입시키고 코어편(4)을 고정시킨 뒤 하부측 형판(1')에 하부측 코어(2)를 볼트로 조립시키고 또한 하부측 형판(1')의 하단에 다수의 볼트에 의해 조립고정된 슬라이드편(3')에는 걸림핀(5)이 좌, 우 홈에 고정되고 에젝터핀(6) (')은 하부측 코어(2) 상면에서 하측 방향으로 좌, 우 삽입시킨 다음 핀지지판(7)에 성형된 구멍으로 삽입되어 핀지지판(7)과 밀판(8) 사이에 조립된 에젝터핀 홀더(9)의 홈내에서 고정핀(10) (1')에 의해 고정되어서 구성되어진 것으로 미설명 부호 11은 에젝터봉이고, 12는 성형품인 것이다.The slide piece 3 is inserted into the lower end surface of the center in the state in which the inclined surface and the hole is drilled in the lower core 2 inside the lower side template 1, the core piece 4 is fixed, and the lower side template 1 The locking pins 5 are provided on the left and right grooves of the slide piece 3 'where the lower core 2 is assembled with bolts and assembled by a plurality of bolts at the lower end of the lower template 1'. And the ejector pin 6 (') are inserted left and right in the downward direction from the upper surface of the lower core 2, and then inserted into the formed holes in the pin support plate 7, so that the pin support plate 7 and the tight plate ( 8) In the groove of the ejector pin holder 9 assembled therebetween, the reference numeral 11 denotes an ejector rod, and 12 is a molded article.

이와 같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.

상기와 같이 조립된 본원은 사출금형의 내부 양면 언더컷 처리장치로써 도면 제1도에 도시된 바와 같은 상태에서 일단 상부금형이 열리면서 에젝터봉(11)에 의해 밀판(8), 핀지지판(7)이 상부로 상승함에 따라 동시에 에젝터핀 홀더(9)내부에 고정핀(10) (10')에 의해 고정되어 있는 에젝터핀(6) (6')이 성형품(12)을 밀면서 함께 하부측 코어(2)의 상부내로 경사면에서 슬라이딩되면서 이탈되어 상승하는데 이때 캠 역할을 하는 걸림핀(5)에 의해 에젝터핀(6) (6') 좌, 우 경사면에 접촉되면서 스트로크 S1만큼 S2가 이동됨에 따라 성형품(12)내에서 하부측 코어편(4)은 분리되어 도면 제2도에 도시된 바와 같은 상태가 되고 계속하여 에젝터봉(11)에 의해 상승되던 밀판(8), 판지지판(7)이 하부측 형판(1')의 하부면에 밀착되어 동작을 멈추게 되면서 상승하던 에젝터핀(6) (6')이 되면 제3도에 도시된 바와 같이 걸림편(5)에 의해 좌,우 양측으로 벌어지게 되어 성형품(12)이 분리되게 된 것으로 금형이 닫힐 경우에는 상기의 역동작에 의해 원래 상태로 되어지는 본원은 금형의 언더컷 처리부 작동을 원활히 이루어지게 하고 또한 제품의 다양화에 따른 금형의 구조적 결함을 해결하였을 뿐만 아니라 대량 생산 및 작동상 안전성으로 인하여 제품의 품질 향상을 높일 수 있게된 것이다.Assembled as described above is an injection mold inner double-sided undercut processing device as shown in Figure 1 Figure 1 once the upper mold is opened by the ejector rods 11 by the ejector rod 11, pin support plate (7) As it rises to the upper side, the ejector pins 6 and 6 ', which are fixed by the fixing pins 10 and 10' at the same time in the ejector pin holder 9, push the molded article 12 together and the lower side together. Sliding from the inclined surface into the upper portion of the core (2) is separated and rises at this time by the engaging pin (5) acting as a cam to contact the left and right inclined surface of the ejector pin (6) (6 ') S 2 by stroke S 1 As the plate is moved, the lower core piece 4 in the molded article 12 is separated into a state as shown in FIG. 2 and continues to be pushed up by the ejector rod 11. The ejector pin 6 which is raised as the support plate 7 comes into close contact with the lower surface of the lower side template 1 'and stops operation. 6 '), as shown in FIG. 3, the left and right sides are opened by the locking pieces 5, and the molded article 12 is separated. When the mold is closed, the reverse operation is performed. This product, which is in its original state, facilitates the operation of the undercut process of the mold, and solves the structural defects of the mold due to the diversification of the product, and also improves the quality of the product due to mass production and operational safety. will be.

Claims (1)

상부측 형판(1)하부의 하부측 형판(1')에 볼트로 조립된 하부측 코어(2)내부에 경사면, 구멍이 뚫린 상태에서 중앙 하단부면에 슬라이드편(3)을 삽입시키고 코어편(4)을 고정시킨뒤 하부측 형판(1')의 하면에 다수의 볼트에 의해 조립 고정된 슬라이드편(3')에는 걸림핀(5)이 고정되고 에젝터핀(6) (6')은 하부측 코어(2) 상면에서 하측 방향으로 좌, 우 삽입시킨 다음 핀지지판(7)에 성형된 구멍으로 삽입되어 핀지지판(7)과 밀판(8)사이에 조립된 에젝터핀 홀더(9)의 홈내에서 고정핀(10) (10')에 의해 고정됨을 특징으로한 사출금형의 내주 양면 언더컷 처리장치.The slide piece 3 is inserted into the lower end surface of the lower core 1, which is bolted to the lower lower plate 1 'under the upper mold 1, and the slide piece 3 is inserted into the center lower end surface while the hole is drilled. 4) After the fixing, the locking pin 5 is fixed to the slide piece 3 'assembled by a plurality of bolts on the lower surface of the lower side template 1' and the ejector pins 6 and 6 'are fixed. The ejector pin holder 9 inserted into the pin support plate 7 and inserted into the hole formed in the pin support plate 7 by being inserted left and right in the lower direction from the upper side of the lower core 2 and assembled between the pin support plate 7 and the contact plate 8. Inner peripheral double-sided undercut processing apparatus of the injection mold, characterized in that is fixed by the fixing pin (10) (10 ') in the groove.
KR2019870001452U 1987-02-11 1987-02-11 Undercut articles ejecting device in injection mould KR900005725Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870001452U KR900005725Y1 (en) 1987-02-11 1987-02-11 Undercut articles ejecting device in injection mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870001452U KR900005725Y1 (en) 1987-02-11 1987-02-11 Undercut articles ejecting device in injection mould

Publications (2)

Publication Number Publication Date
KR880016039U KR880016039U (en) 1988-10-07
KR900005725Y1 true KR900005725Y1 (en) 1990-06-28

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KR2019870001452U KR900005725Y1 (en) 1987-02-11 1987-02-11 Undercut articles ejecting device in injection mould

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Publication number Publication date
KR880016039U (en) 1988-10-07

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