KR920003868Y1 - Slide core driving device at the mould opening and closing - Google Patents

Slide core driving device at the mould opening and closing Download PDF

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Publication number
KR920003868Y1
KR920003868Y1 KR2019900002022U KR900002022U KR920003868Y1 KR 920003868 Y1 KR920003868 Y1 KR 920003868Y1 KR 2019900002022 U KR2019900002022 U KR 2019900002022U KR 900002022 U KR900002022 U KR 900002022U KR 920003868 Y1 KR920003868 Y1 KR 920003868Y1
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South Korea
Prior art keywords
slide core
core
mold
slide
closing
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KR2019900002022U
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Korean (ko)
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KR910015286U (en
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송제창
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현대전자산업 주식회사
김주용
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Priority to KR2019900002022U priority Critical patent/KR920003868Y1/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
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible 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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

내용 없음.No content.

Description

열경화성수지용 사출금형의 형폐시 코어조속 전진장치Core governing forward device when closing mold of thermosetting resin injection mold

제1도 및 제2도는 본 고안의 형폐시 코어조속 전진장치가 적용된 사출금형의 단면도로서, 제1도는 형개(型開)상태 단면도.1 and 2 are cross-sectional views of an injection mold to which the core speed control device is applied when closing the mold of the present invention, and FIG. 1 is a cross-sectional view of a mold opening state.

제2도는 형폐(型閉)상태 단면도.2 is a cross-sectional view of a mold closed state.

제3도는 제1도의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

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

1 : 고정형판 2 : 가동형판1: fixed plate 2: movable plate

3 : 슬라이드코어 4 : 슬라이드코어핀3: slide core 4: slide core pin

5 : 관통공 6 : 슬라이드블럭5: through hole 6: slide block

7 : 직선부 8 : 경사부7: straight portion 8: inclined portion

9, 9' : 정지홈 10 : 정지돌기9, 9 ': Stop groove 10: Stop protrusion

본 고안은 사출금형의 측면 언더커트 처리장치에 관한 것으로, 특히 열경화성수지의 사출에 있어 형폐전에 측면언더커트 처리용 코어를 조속전지시키는 사출금형의 형폐전 코어조속 전진장치에 관한 것이다.The present invention relates to a side undercut processing apparatus of an injection mold, and more particularly, to a mold closing core speed forward device of an injection mold for fastening a side undercut processing core before mold closing in injection of a thermosetting resin.

종래 일반적인 수지의 사출성형에 있어서는 고정형판과 가동형판을 형폐시킨 상태에서 수지를 투입하는 것이 통례이나, 열경화성수지의 사출성형에 있어서는 열경화성수지의 특성상형폐전에 수지를 투입하여야 한다.In the conventional injection molding of general resin, the resin is conventionally added while the fixed mold and the movable mold are closed, but in the injection molding of the thermosetting resin, the resin must be added before the closing of the mold due to the characteristics of the thermosetting resin.

또한 이러한 열경화성 수지의 사출제품에 언더커트부가 있는 경우에는 언더커트 처리용 코어를 형폐전에 전진시키지 않으면 투입되는 수지가 오버플로어(Over Flow)되기 때문에 형폐전에 미리 코어를 정위치로 전지시키고 형개시에는 어느 정도 형개가 이루어진 다음에 코어를 후퇴시키는 것이 요구된다.In addition, if there is an undercut portion in the injection-molded product of such a thermosetting resin, if the undercutting core is not advanced before the mold closing, the injected resin will overflow, so that the core is put in place before mold closing. Initiation requires retreating the core after some mold opening.

따라서 본 고안은 이러한 일경화성수지의 사출성형에 있어서 언더커트 처리용 코어를 형폐전에 정위치로 전진시키고 형개시에는 어느 정도 형개가 이루어진 다음에 코어를 후퇴시킴으로써 수지가 오버플로어되는 일이 없이 제품의 사출성형과 언더커트부를 확실하게 처리할 수 있도록 한 사출금형의 형폐전 코어전속 전진장치를 제공하려는 것이다.Therefore, the present invention advances the undercut treatment core to the correct position before mold closing in injection molding of such a hardenable resin, and when the mold is opened to some extent, the product is not overflowed by retreating the core by retreating the core. It is to provide an injection mold pre-closure core forwarding device that can reliably handle injection molding and undercut parts.

이러한 본 고안의 목적은 고정형판과 가동형판을 설치하여 가동형판에는 언더커트 처리용 슬라이드 코어핀을 보유하는 형성된 슬라이드 코어가 설치된 것에 있어서, 상기 코어에 관통공을 천공하고, 고정형판에는 상기 슬라이드코어의 관통공에 삽입되는 직선부와 경사부를 보유하는 슬라이드 블럭을 고정설치하여서 된 것을 특징으로 하는 사출금형의 형폐전 코어조속 전진장치를 제공하는 것에 의하여 달성된다.The purpose of the present invention is to install a fixed plate and a movable plate, the movable plate is provided with a slide core formed to hold the slide core pin for the undercut treatment, the through-hole is drilled in the core, the fixed plate is the slide core It is achieved by providing an injection mold pre-closure core speed forward device, characterized in that the slide block having a straight portion and an inclined portion inserted into the through hole of the fixed.

상기 슬라이드코어에는 정지홈을 형성하고 고정형판에는 상기 정지홈에 선택적으로 걸리는 정지돌기를 설치함으로써 슬라이드코어의 전지 및 후퇴위치를 정확히 유지할 수 있도록 한다.The slide core is provided with a stop groove, and the stationary plate may be provided with a stop protrusion selectively caught by the stop groove to accurately maintain the battery and the retracted position of the slide core.

이하 본 고안에 의한 형폐전 코어조속 전진장치를 첨부도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, the mold closing core speed control device according to the present invention will be described in detail according to an embodiment shown in the accompanying drawings.

본 고안의 형폐전 코어조속 전진장치는 제1도 및 제2도에 도시한 바와같이 고정형판(1)과 가동형판(2)를 설치하여 가동형판(2)에는 언더커트 처리용 슬라이드 코어핀(4)을 보유하는 형성된 슬라이드코어(3)가 설치된것에 있어서, 상기 코어(3)에 관통공(5)을 천공하고, 고정형판(1)에는 상기 슬라이드코어(3)의 관통공(5)에 삽입되는 직선부(7)와 경사부(8)를 보유하는 슬라이드블럭(6)을 고정설치 하여서 된 것이다.As shown in FIGS. 1 and 2, the mold closing core control speed forward device of the present invention is provided with a fixed plate 1 and a movable plate 2 so that the movable plate 2 has a slide core pin for undercut processing ( In the slide core (3) formed holding the 4) is provided, the through hole (5) is drilled in the core (3), and the fixed plate (1) in the through hole (5) of the slide core (3). The slide block 6 having the straight portion 7 and the inclined portion 8 to be inserted is fixed.

상기 슬라이드블럭(6)의 직선부(7)와 경사부(8)는 형폐시에는 형폐가 완료전에 슬라이드코이핀(4)이 언더커트 처리를 위한 정위치로 전진되고, 형개시에는 어느정도 형개가 이루어진 다음에 슬라이드코어핀(4)이 후퇴되도록 할 수 있는 길이로 설정한다.The straight portion 7 and the inclined portion 8 of the slide block 6 are advanced to the correct position for the undercut treatment of the slide coffin 4 before the mold closing is completed at the time of mold closing. The slide core pin 4 is then set to a length such that the slide core pin 4 can be retracted.

상기 슬라이드코어(3)에는 정지홈(9), (9')을 형성하고, 가동형판(1)에는 상기 정지홈(9), (9')에 선택적으로 걸리는 정지돌기(10)를 설치한다.The slide core 3 is provided with stop grooves 9 and 9 ', and the movable die 1 is provided with a stop protrusion 10 selectively caught by the stop grooves 9 and 9'. .

상기 정지돌기(10)는 가동형판(1)에 나사체결되는 스크류(11)의 선단에 형성하여 슬라이드코어(3)의 정지홈(9), (9')측으로 돌출되게 한다.The stop protrusion 10 is formed at the tip of the screw 11 screwed to the movable die 1 to protrude toward the stop grooves 9 and 9 'of the slide core 3.

상기 정지돌기(10)는 스프링에 의하여 탄력설치되는 블로크식으로 대치할 수도 있는 것이다.The stop protrusion 10 may be replaced by a block type that is elastically installed by a spring.

도면중 미설명 부호 P는 열경화성수지 제품이고, U는 언더커트부이다.In the figure, reference numeral P denotes a thermosetting resin product, and U denotes an undercut portion.

본 고안의 코어조속 전진장치가 적용된 사출금형에 의하여 열경화성수지 제품(P)을 사출성형함에 있어서는 제1도의 형개상태에서 가동형판(2)을 전진시켜 어느정도 형폐가 이루어진 상태에서 열경화성수지를 투입하고 가동형판(2)을 계속하여 전진시켜 제2도와 같이 형폐시킨 상태에서 사출을 완료한 다음 가동형판(2)을 후퇴시켜 제1도와 같이 형개시킴으로써 제품(P)을 추출하는 것이다.In injection molding the thermosetting resin product (P) by the injection mold to which the core fastening device of the present invention is applied, the movable mold 2 is advanced in the opening state of FIG. The product P is extracted by continually advancing the template 2 to complete the injection in the state of mold closing as shown in FIG. 2, and then retracting the movable template 2 to mold the mold as shown in FIG.

상술한 형폐과정에 있어서 제1도의 형개상태에서는 상기 슬라이드코어(3)의 관통공(5)에는 슬라이드블럭(6)의 경사부(8)가 삽입된 상태로 되며, 이 상태에서 가동형판(2)이 전진하기 시작하면, 슬라이드코어(3)의 관통공(5)과 이에 관통된 슬라이드블럭(6)의 경사부(8)에 의하여 슬라이드코어(3)가 전진하게 된다.In the mold closing process of FIG. 1, the inclined portion 8 of the slide block 6 is inserted into the through hole 5 of the slide core 3 in the mold closing state of FIG. ), The slide core 3 is advanced by the through hole 5 of the slide core 3 and the inclined portion 8 of the slide block 6 penetrated therethrough.

상기 슬라이드코어(3)는 경사부(8)가 관통공(5)에 삽입되어 있는 동안에는 계속하여 전진하게 되고 경사부(8)과 직선부(7)의 경계부에 이를 때 까지는 슬라이드코어(3)가 계속 전진하게되고 이 위치에서 상기 슬라이드코어핀(4)은 제품(P)의 언더커트부(U)를 처리하기 위한 위치로 정위치하게 된다.The slide core 3 continues to move forward while the inclined portion 8 is inserted into the through hole 5, and the slide core 3 until it reaches the boundary between the inclined portion 8 and the straight portion 7. Is continuously advanced and in this position the slide core pin 4 is placed in a position for processing the undercut portion U of the product P.

이 상태에서는 상기 고정형판(1)과 가동형판(2)은 완전히 형폐되지 않고 열경화성수지를 투입할 수 있는 상태로 유지되므로 이때 열경화성수지를 투입하는 것이다.In this state, the stationary plate 1 and the movable plate 2 are not completely closed, but are kept in a state capable of injecting the thermosetting resin. At this time, the thermosetting resin is introduced.

열경화성수지를 투입한 상태에서 계속하여 가동형판(2)을 전진시키면 상기 슬라이드블럭(6)의 직선부(7)가 슬라이드코어(3)의 관통공(5)에 위치하는 상태이므로 슬라이드코어(3)는 더이상 전진하지 않고 정위치를 유지하게 되면서 고정형판(1)과 가동형판(2)의 형폐가 완료되는 것이다.If the movable die 2 is continuously advanced while the thermosetting resin is put therein, the straight portion 7 of the slide block 6 is positioned in the through hole 5 of the slide core 3, and thus the slide core 3 is moved. ) Is no longer moving forward while maintaining the correct position, the mold closing of the stationary plate (1) and the movable plate (2) is completed.

제2도의 형폐상태에서 제품(P)의 형개를 위하여 가동형판(2)을 후퇴시키면 슬라이드코어(3)와 슬라이드블럭(6)은 관통공(5)에 직선부(7)가 접촉되는 상태이므로 가동형판(2)이 직선부(7)의 길이만큼 후퇴할때 까지는 슬라이드코어(3)는 후퇴하지 않고 언더커트 처리를 위한 정위치를 유지하게 되며 슬라이드코어(3)의 관통공(5)에 경사부(8)가 이르게 된 다음부터는 관통공(5)과 경사부(8)의 작용에 의하여 슬라이드코어(3)가 후퇴하기 시작하여 경사부(8)의 끝단부에 이르면 슬라이드코어(3)는 완전히 후퇴된 상태로 된다.In the mold closing state of FIG. 2, when the movable die 2 is retracted to open the product P, the slide core 3 and the slide block 6 are in a state where the straight portion 7 is in contact with the through hole 5. Until the movable die 2 is retracted by the length of the straight portion 7, the slide core 3 does not retreat but maintains its position for undercut treatment and is formed in the through hole 5 of the slide core 3. After the inclined portion 8 reaches, the slide core 3 starts to retreat by the action of the through hole 5 and the inclined portion 8, and when the inclined portion 8 reaches the end of the inclined portion 8, the slide core 3 Is completely retracted.

상술한 작동에 있어서 슬라이드코어(3)가 전진위치와 후퇴위치에 이르면 가동형판(1)에 설치된 정지돌기(10)가 슬라이드코어(3)에 형성된 정지홈(9), (9')에 선택적으로 걸리면서 그 슬라이드코어(3)가 전진위치 또는 후퇴위치에서 정확하게 정지하게 된다.In the above-described operation, when the slide core 3 reaches the forward position and the retracted position, the stop projection 10 provided on the movable die 1 is selective to the stop grooves 9, 9 'formed on the slide core 3. The slide core 3 stops precisely at the forward position or the retracted position.

이상과 같이 본 고안에 의하면 언더커트 처리를 위한 슬라이드 코어를 형폐전에 미리 정위치로 전진시킬 수 있으므로 수지의 특성상 형폐전에 슬라이드코어를 전진시켜야 하는 열경화성수지의 사출성형에 있어서의 언더커트 처리를 확실하게 수행할 수 있게 되는 것이다.As described above, according to the present invention, the slide core for the undercut treatment can be advanced to the predetermined position before mold closing. Therefore, the undercut treatment in the injection molding of the thermosetting resin that requires the slide core to be advanced before mold closing due to the characteristics of the resin is performed. It can be done with certainty.

Claims (1)

고정형판(1)과 가동형판(2)으로 된 열경화성수지성형 금형의 가동형판(2)에는 언더커트 처리용 슬라이드코어핀(4)을 보유하는 형성된 슬라이드코어(3)를 설치하고, 고정형판(1)에는 슬라이드코어(3) 구동용 슬라이드블럭(6)을 설치하여 가동형판(2)에는 슬라이드코어(3) 제어용 정지돌기(10)를 형성한 것에 있어서, 상기 코어(3)에 관통공(3)을 수직한 상태로 천공하고, 고정형판(1)의 슬라이드블럭(6)에는 슬라이드코어(3)의 관통공(5)으로 삽입되는 경사부(8)와 직선부(7)를 형성하고, 슬라이드코어(3)의 전후이동완료 위치에 정지홈(9), (9')을 형성한 것을 특징으로 하는 열경화성수지용 성형금형의 형폐시 코어조속 전진장치.On the movable mold 2 of the thermosetting resin molding die which consists of the fixed mold 1 and the movable mold 2, the formed slide core 3 which holds the slide core pin 4 for undercut processing is provided, and the fixed mold ( 1) A slide block 6 for driving the slide core 3 is provided, and a stopper 10 for controlling the slide core 3 is formed in the movable plate 2, and the through hole (3) is provided in the core 3. 3) is drilled in a vertical state, and the inclined portion 8 and the straight portion 7 inserted into the through hole 5 of the slide core 3 are formed in the slide block 6 of the fixed plate 1. And a core groove speed forwarding device during mold closing of a molding mold for thermosetting resin, characterized in that stop grooves 9 and 9 'are formed at the front and rear movement completion positions of the slide core 3.
KR2019900002022U 1990-02-23 1990-02-23 Slide core driving device at the mould opening and closing KR920003868Y1 (en)

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KR920003868Y1 true KR920003868Y1 (en) 1992-06-12

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