KR200451368Y1 - Undercut processing structure of injection molding with slide block - Google Patents

Undercut processing structure of injection molding with slide block Download PDF

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Publication number
KR200451368Y1
KR200451368Y1 KR2020080017386U KR20080017386U KR200451368Y1 KR 200451368 Y1 KR200451368 Y1 KR 200451368Y1 KR 2020080017386 U KR2020080017386 U KR 2020080017386U KR 20080017386 U KR20080017386 U KR 20080017386U KR 200451368 Y1 KR200451368 Y1 KR 200451368Y1
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South Korea
Prior art keywords
undercut
slide block
slide
forming core
core
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KR2020080017386U
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Korean (ko)
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KR20100006999U (en
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박경현
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구미에이테크솔루션주식회사
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Priority to KR2020080017386U priority Critical patent/KR200451368Y1/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
    • 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
    • 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
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor
    • B29C2045/336—Cam drives
    • 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
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/5645—Resilient compression means

Abstract

본 고안은 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치에 관한 것으로, 사출금형에서 하나의 슬라이드 블록으로 내/외측 언더컷을 동시에 처리하도록하여 내/외측 언더컷을 위한 구조가 간단하도록 한 것이다.The present invention relates to an apparatus for processing inside / outside undercut using a slide block, and to simplify the structure for inside / outside undercut by simultaneously processing the inside / outside undercut with one slide block in an injection mold.

언더컷, 슬라이드 블록 Undercut, slide block

Description

슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치{Undercut processing structure of injection molding with slide block}Undercut processing structure of injection molding with slide block

본 고안은 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치에 관한 것으로, 보다 상세하게는 성형품의 내/외측 언더컷을 간단한 구조로 동시에 처리할 수 있도록 한 성형품 내/외측 언더컷 처리 장치에 관한 것이다.The present invention relates to a molded article inside / outside undercut processing apparatus using a slide block, and more particularly to a molded article inside / outside undercut processing apparatus that can simultaneously process the inside / outside undercut of the molded article in a simple structure.

일반적으로 사출성형은 열가소성 플라스틱 또는 열경화성 플라스틱 성형재료를 사출성형기 내에서 가열 용융한 후, 스프루, 런너 및 게이트 등의 주입공간을 통해 사출금형의 캐비티 내로 가압 주입하여 충전하고, 이를 고화 또는 경화하여 성형품으로서 취출하는 성형방법이다.In general, injection molding heat-melts a thermoplastic or thermosetting plastic molding material in an injection molding machine, and then press-fills the cavity of an injection mold through an injection space such as a sprue, a runner, and a gate, and solidifies or hardens it. It is a molding method taken out as a molded article.

이와 같은 성형품의 취출 과정에서 성형품을 캐비티로부터 분리해내기 어렵게 장애를 주는 부분을 언더컷이라 하고, 통상 하부나 측부 등 한부분에만 언더컷이 있는 경우에는 슬라이드 블록을 해당 부분에 맞게 이동시켜 간단하게 처리하였으나, 내측과 외측에 동시에 있는 언더컷의 경우에는 처리가 용이하지 않았다.The part which makes it difficult to separate the molded part from the cavity in the process of taking out the molded part is called undercut, and in the case where there is an undercut only in one part such as the lower part or the side part, the slide block is simply moved to fit the part. In the case of the undercut simultaneously located inside and outside, the treatment was not easy.

이러한 문제점을 해결하기 위한 선행기술로 20-0421077호에는 내/외측 언더컷을 처리하기 위하여 슬라이드 블록을 이중으로 설치하여, 금형의 개형시에 복수개의 슬라이드 블록가 각각 동작하면서 내/외측 언더컷을 처리하도록 하고 있으나, 이러한 이중 슬라이드 블록을 사용할 경우, 사출성형장치 내에 복수개의 슬라이드코어를 배치하여야 하므로 설계가 용이하지 않고 구성이 복잡해지며, 유지/보수 또한 용이하지 않은 문제점이 있었다.In order to solve this problem, the prior art 20-0421077 is provided with a double slide block to handle the inner / outer undercut, so that the plurality of slide blocks to operate the inner / outer undercut when the mold is opened, respectively. However, when using such a double slide block, it is necessary to arrange a plurality of slide cores in the injection molding apparatus, so that the design is not easy and the configuration is complicated, there is also a problem that is not easy to maintain and repair.

상기한 문제점을 해결하기 위한 본 고안의 목적은 내/외부에 언더컷을 갖는 사출품을 취출하기 위하여, 하나의 슬라이드 블록으로 내/외측 언더컷을 동시에 처리하도록 한 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치를 제공하는 데 있다.An object of the present invention for solving the above problems is to take out an injection product having an undercut inside / outside, to process the inside / outside undercut molded article using a slide block to simultaneously process the inside / outside undercut with one slide block To provide a device.

상기한 목적을 달성하기 위한 본 고안의 특징은, 내/외부에 언더컷을 갖는 사출품을 취출하기 위하여, 고정측 형판에 경사지게 돌출형성된 작동캠에 의하여 좌/우 이동하는 슬라이드 블록과, 상부에 성형품의 내측에서 외측으로 언더컷을 성형하도록 언더컷 성형부가 돌출되어 가동측에서 좌/우 왕복운동하는 성형 코어, 가동측의 상기한 성형 코어의 외측에 설치된 압축 스프링, 상기한 성형 코어가 이동되는 공간의 내측에 설치된 스톱퍼, 상기한 슬라이드 블록에 일체로 상하 이격되게설치되고 가동측 캐비티를 관통하여 종단이 상기한 성형 코어가 언더컷을 형성하는 위치에 있을 경우 성형 코어와 접하는 길이로 형성되어 설치되며 상부에 설치된 것은 성형품의 일측 언더컷부분을 관통하고 하부에 설치된것 은 성형품과 이격되게 수평 설치되는 복수개의 슬라이드 핀으로 구성되어, 슬라이드 블록가 전진하면 슬라이드 핀과 성형 코어가 슬라이드코어의 전진방향을 따라 이동하여 언더컷을 성형하고, 금형이 개방되면서 슬라이드 블록가 후퇴하면 상부의 슬라이드 핀은 외측 언더컷부분으로부터 분리되어 언더컷을 처리하고 이와 동시에 복수개의 슬라이드 핀 이 성형 코어를 밀던 힘이 해제되므로 성형 코어는 슬라이드 블록의 후퇴 방향으로 압축스프링의 신장력에 의하여 이동하면서 내측 언더컷을 해결하게 된다.A feature of the present invention for achieving the above object is a slide block that moves left and right by an actuating cam protruding obliquely to a fixed side template, in order to take out an injection product having an undercut inside / outside, and a molded article thereon. An undercut forming portion protruding to form an undercut from an inner side to an outer side of the inner side thereof, a forming core reciprocating left and right on the movable side, a compression spring provided outside the forming core on the movable side, and an inner side of the space in which the forming core is moved. Stopper installed in the upper and lower spaced integrally to the slide block and penetrates through the movable side cavity when the end is in the position where the forming core to form an undercut is formed and formed in contact with the forming core and installed on top The penetrating penetrates the undercut part of the molded part and the lower part is installed horizontally apart from the molded part. Consists of several slide pins, when the slide block is advanced, the slide pin and the forming core move in the forward direction of the slide core to form the undercut, and when the slide block is retracted with the mold open, the upper slide pin is separated from the outer undercut portion. As a result of processing the undercut and at the same time the force of plural slide pins pushing the forming core is released, the forming core is moved by the extension force of the compression spring in the retraction direction of the slide block to solve the inner undercut.

그리고, 이 과정에서 스톱퍼에 의하여 성형 코어의 이동량이 제한된다.In this process, the amount of movement of the forming core is limited by the stopper.

상기한 바와 같은 본 고안에 의하면 내/외측 언더컷을 처리하기 위하여 복수개의 슬라이드 블록을 사용하지 않고, 외측 언더컷은 슬라이드 블록을 통해서 내측언더컷은 상기한 슬라이드 블록에 설치된 슬라이드 핀과 스프링 및 스톱퍼에 의하여 구동이 제어되는 슬라이드 블록에 의하여 처리되므로, 내/외측 언더컷을 처리하기 위한 구성이 간단하여, 금형의 설계 및 유지 보수가 용이한 효과가 있다.According to the present invention as described above, without using a plurality of slide blocks to process the inner / outer undercut, the outer undercut is driven through the slide block, the inner undercut is driven by the slide pin and the spring and the stopper installed in the slide block. Since it is processed by this controlled slide block, the structure for processing an inner / outer undercut is simple, and there exists an effect which is easy to design and maintain a metal mold | die.

이하 본 고안의 실시예를 첨부된 도면을 참조하여 살펴본다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도 1은 본 고안에 따른 내/외측 언더컷을 갖는 성형품을 나타내는 사시도이고, 도 2 및 도 3은 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치를 나타내는 단면도로서 도 2는 금형이 닫힌 상태를 나타내는 단면도이고 도 3은 금형이 열린 상태를 나타내는 단면도이다.1 is a perspective view illustrating a molded article having an inner / outer undercut according to the present invention, and FIGS. 2 and 3 are cross-sectional views illustrating an inner / outside undercut processing apparatus using a slide block, and FIG. 2 is a cross-sectional view illustrating a closed state of a mold. 3 is a cross-sectional view showing a state in which a mold is opened.

본 고안에 따른 언더컷 처리 장치는 고정측에 경사지게 하부로 일체로 돌출형성된 작동캠(110), 상기한 작동캠(110)에 의하여 좌/우 이동하는 슬라이드 블록(210), 상기한 슬라이드 블록(210)에 일체로 설치되어 외측 언더컷(P1)을 형성하는 제 1슬라이드 핀(220), 상기한 슬라이드 블록(210)의 제 1슬라이드 핀(220) 하부에 성형품(P)과 이격되도록 일체로 설치되는 제 2슬라이드 핀(230), 상부에 성형품(P)의 내측에서 외측으로 내측 언더컷(P2)을 성형하도록 언더컷 성형부(242)가 돌출되어 가동측에서 좌/우 왕복운동하는 성형 코어(240), 가동측의 상기한 성형 코어(240)의 외측에 설치된 압축 스프링(S), 상기한 성형 코어(240)가 이동되는 공간의 내측에 설치된 스톱퍼(250)로 구성된다.The undercut treatment apparatus according to the present invention is an operation cam 110 integrally protruded downwardly inclined to the fixed side, a slide block 210 to move left and right by the operation cam 110, the slide block 210 The first slide pin 220 is integrally installed on the first slide pin 220 to form an outer undercut (P1), the first slide pin 220 of the slide block 210 is integrally installed to be spaced apart from the molded product (P) The molding core 240 protrudes from the movable side to the left / right reciprocating motion of the undercut molding part 242 so as to form the inner undercut P2 from the inside of the molded product P to the outside of the second slide pin 230 and the upper part. And a compression spring S provided on the outside of the forming core 240 on the movable side, and a stopper 250 provided on the inside of the space in which the forming core 240 is moved.

상기한 구성에서 제 1 및 2 슬라이드 핀(220)(230)은 슬라이드 블록(210)에 일체로 상하 이격되게 설치되고 가동측 캐비티(260)를 관통하여 종단이 상기한 성형 코어(240)가 내측 언더컷(P2)을 형성하는 위치에 있을 경우 성형 코어(240)와 접하는 길이로 형성된다.In the above configuration, the first and second slide pins 220 and 230 are integrally spaced apart from each other in the slide block 210 and penetrate through the movable side cavity 260 so that the forming core 240 having the ends is inward. When in the position to form the undercut (P2) is formed to a length in contact with the forming core (240).

그리고, 상기한 슬라이드 블록(210)은 가동측에 좌/우 이동가능하도록 설치되어 전방에 제 1,2 슬라이드 핀(220)(230)이 설치되고 상기한 작동캠(110)이 삽입되는 경사진 제 1작동공(212)이 형성되어 상기한 작동캠(110)에 의하여 좌/우 이동하며, 상기한 가동측의 슬라이드 블록(210) 이동공간의 후방에는 스톱퍼(270)가 설치되어 슬라이드 블록(210)의 후방 이동량을 제한하고, 슬라이드 블록(210)의 하부에는 작동캠(110)의 종단이 삽입되는 삽입홈(280)이 형성되어 금형이 닫힌 상태에서 작동캠(110)이 슬라이드 블록(210)을 가동측 캐비티(260)에 밀착시키도록 한다.In addition, the slide block 210 is installed on the movable side so as to be movable left / right so that the first and second slide pins 220 and 230 are installed at the front and the inclined side into which the operation cam 110 is inserted. The first operation hole 212 is formed to move left / right by the operation cam 110, the stopper 270 is installed at the rear of the movable space of the slide block 210 of the movable side slide block ( Limiting the amount of rear movement of the 210, the lower portion of the slide block 210 is formed with an insertion groove 280 is inserted into the end of the operation cam 110, the operation cam 110 is a slide block 210 in the closed state of the mold. ) Is brought into close contact with the movable side cavity 260.

그리고, 가동측 캐비티(260)는 우측에 상기한 제 1,2 슬라이드 핀(220)(230)이 관통되는 복수의 관통공(262)(263)이 천공되고, 상부에 내/외측 언더컷(P1)(P2)부분을 성형하기 위한 성형홈(265)(266)이 형성되며, 상기한 성형코어(240)가 이동되도록 성형코어(240)의 형상에 대응되는 공간(268)이 형성된다.In addition, the movable side cavity 260 is perforated with a plurality of through holes 262 and 263 through which the first and second slide pins 220 and 230 pass through, and an inner / outer undercut P1 at an upper portion thereof. Forming grooves 265 and 266 for forming a portion (P2) are formed, and a space 268 corresponding to the shape of the forming core 240 is formed to move the forming core 240.

상기한 스톱퍼(250)는 캐비티(260)의 공간 내측 저면에 체결되는 볼트로 구 성되고, 성형 코어(240)에는 볼트의 머리부와 대응되는 홈(244)이 하단부에 형성된다.The stopper 250 is composed of bolts fastened to the inner bottom surface of the cavity 260, and the groove 244 corresponding to the head of the bolt is formed at the lower end of the molding core 240.

그리고, 가동측의 성형 코어(240) 후방에는 압축스프링(S)이 설치되는 삽입홈(290)이 형성된다.In addition, an insertion groove 290 in which the compression spring S is installed is formed at the rear of the forming core 240 on the movable side.

이와 같이 구성된 언더컷 처리장치의 동작을 살펴보면, 금형이 닫히면서 도 2에 나타내는 바와 같이 작동캠(110)에 의하여 슬라이드 블록(210)가 전진하면 슬라이드 핀(220)(230)과 성형 코어(240)가 슬라이드 블록(210)의 전진방향을 따라 이동하여, 제 1슬라이드핀(220)은 가동측 캐비티(260)와 외측 언더컷(P1)을 관통하여 외측 언더컷(P1)을 성형하고, 캐비티(260)를 관통한 상기한 제 1슬라이드 핀(220)과 제 2슬라이드 핀(230)이 성형 코어(240)를 밀게 되어 성형 코어(240)는 내측 언더컷(P2)을 형성한다.Looking at the operation of the undercut treatment device configured as described above, when the slide block 210 is advanced by the operation cam 110 as shown in Figure 2 while the mold is closed, the slide pins 220, 230 and the forming core 240 Moves along the forward direction of the slide block 210, the first slide pin 220 penetrates the movable side cavity 260 and the outer undercut P1 to form the outer undercut P1, and the cavity 260. The first slide pin 220 and the second slide pin 230 penetrate the shaping core 240 so that the shaping core 240 forms an inner undercut P2.

그리고, 금형이 열리면서 도 3에 나타내는 바와 같이 작동캠(110)에 의하여 슬라이드 블록(210)가 후퇴하면 제 1 슬라이드 핀(220)은 외측 언더컷(P1)부분으로부터 분리되어 외측 언더컷(P1)을 처리하고 이와 동시에 제 1,2 슬라이드 핀(220)(230)에 의하여 성형 코어(240)에 가해지던 힘이 제거되므로 성형 코어(240)는 슬라이드 블록(210)의 후퇴 방향으로 압축스프링(S)의 신장력에 의하여 이동하면서 내측 언더컷(P2)을 해결하게 된다.When the slide block 210 is retracted by the operation cam 110 while the mold is opened, the first slide pin 220 is separated from the outer undercut P1 to process the outer undercut P1. At the same time, since the force applied to the forming core 240 is removed by the first and second slide pins 220 and 230, the forming core 240 is formed in the compression spring S in the retraction direction of the slide block 210. The inner undercut P2 is solved while moving by the stretching force.

그리고, 이 과정에서 스톱퍼(250)(270)에 의하여 성형 코어(240) 및 슬라이드 블록(210)의 이동량이 제한된다.In this process, the amount of movement of the forming core 240 and the slide block 210 is limited by the stoppers 250 and 270.

한편, 상기한 구성에서 슬라이드 핀(220)(230)을 상하 두개 설치한 것은 성형 코어(240)를 미는 힘이 균형있게 성형 코어(240)에 작용되도록 하여 내측 언더컷(P2)의 성형 불량이 발생되지 않도록 하기 위함이다.On the other hand, in the above configuration, the installation of two slide pins 220, 230, the upper and lower, so that the force pushing the molding core 240 acts on the molding core 240 in a balanced manner, the molding failure of the inner undercut (P2) occurs This is to prevent it.

도 1은 본 고안에 따른 내/외측 언더컷을 갖는 성형품을 나타내는 사시도1 is a perspective view showing a molded article having an inner / outer undercut according to the present invention

도 2 및 도 3은 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치를 나타내는 단면도로서 도 2는 금형이 닫힌 상태를 나타내는 단면도이고 도 3은 금형이 열린 상태를 나타내는 단면도.2 and 3 are cross-sectional views of the molded article inside / outside undercut processing apparatus using a slide block, Figure 2 is a cross-sectional view showing a mold closed state, Figure 3 is a cross-sectional view showing a mold open state.

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

110 : 작동캠 210 : 슬라이드 블록110: operation cam 210: slide block

220, 230 : 슬라이드 핀 240 : 성형 코어220, 230: slide pin 240: forming core

S : 압축스프링 P1, P2 : 언더컷S: Compression spring P1, P2: Undercut

Claims (1)

내/외부에 언더컷을 갖는 사출품을 취출하기 위한 내/외측 언더컷 처리 장치에 있어서,In the inside / outside undercut processing apparatus for taking out the injection molded article having an undercut inside / outside, 고정측에 경사지게 하부로 일체로 돌출형성된 작동캠(110), Operation cam 110 is formed to protrude integrally downward inclined to the fixed side, 상기한 작동캠(110)에 의하여 좌/우 이동하는 슬라이드 블록(210), Slide block 210 to move left / right by the operation cam 110, 상부에 성형품(P)의 내측에서 외측으로 내측 언더컷(P2)을 성형하도록 언더컷 성형부(242)가 돌출되어 가동측에서 좌/우 왕복운동하는 성형 코어(240),A molding core 240 protruding from the inside of the molded article P to the inside to cut the inner undercut P2 to form an outer undercut P2, and reciprocating left and right on the movable side, 가동측의 상기한 성형 코어(240)의 외측에 설치된 압축 스프링(S),  Compression spring S provided in the outer side of the said shaping | molding core 240 on the movable side, 상기 성형 코어(240)가 이동되는 공간의 내측에 설치된 스톱퍼(250),A stopper 250 installed inside the space in which the forming core 240 is moved, 상기 슬라이드 블록(210)에 일체로 상하 이격되게 설치되고 가동측 캐비티를 관통하여 종단이 상기한 성형 코어(240)가 언더컷을 형성하는 위치에 있을 경우 성형 코어(240)와 접하는 길이로 형성되어 설치되며 상부에 설치된 것은 성형품의 외측에서 내측으로 관통되어 외측 언더컷(P1)부분을 형성하고 하부에 설치된 것은 성형품과 이격되게 수평 설치되는 복수개의 슬라이드 핀(220)(230)으로 구성되는 것을 특징으로 하는 슬라이드 블록을 이용한 성형품 내/외측 언더컷 처리 장치.The slide block 210 is integrally spaced apart vertically and penetrates through the movable side cavity and is formed to have a length in contact with the forming core 240 when the end of the forming core 240 is in a position to form an undercut. The upper part is penetrated from the outer side of the molded product to the inner side to form an outer undercut (P1) portion, and the lower part is composed of a plurality of slide pins 220 and 230 horizontally spaced apart from the molded product. Apparatus for processing internal and external undercut using a slide block.
KR2020080017386U 2008-12-30 2008-12-30 Undercut processing structure of injection molding with slide block KR200451368Y1 (en)

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CN103171062B (en) * 2011-12-21 2016-01-27 苏州汉扬精密电子有限公司 Slanting pin mechanism
KR102468948B1 (en) * 2020-11-20 2022-11-23 주식회사 일강 Separable Core Type Die Casting Mold And Die Casting Method Using Thereof

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KR100822541B1 (en) 2001-09-01 2008-04-16 한라공조주식회사 Die for injection molding

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Publication number Priority date Publication date Assignee Title
KR100822541B1 (en) 2001-09-01 2008-04-16 한라공조주식회사 Die for injection molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101555127B1 (en) 2014-01-20 2015-09-22 한국오므론전장주식회사 Apparatus for Treating Undercut of Injection Molding

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