KR920008159Y1 - Ejecting device for injection molding articles - Google Patents

Ejecting device for injection molding articles Download PDF

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Publication number
KR920008159Y1
KR920008159Y1 KR2019900018198U KR900018198U KR920008159Y1 KR 920008159 Y1 KR920008159 Y1 KR 920008159Y1 KR 2019900018198 U KR2019900018198 U KR 2019900018198U KR 900018198 U KR900018198 U KR 900018198U KR 920008159 Y1 KR920008159 Y1 KR 920008159Y1
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KR
South Korea
Prior art keywords
injection molding
core
mold
molding machine
take
Prior art date
Application number
KR2019900018198U
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Korean (ko)
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KR920009166U (en
Inventor
김상기
Original Assignee
현대전자산업 주식회사
정몽헌
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Priority to KR2019900018198U priority Critical patent/KR920008159Y1/en
Publication of KR920009166U publication Critical patent/KR920009166U/en
Application granted granted Critical
Publication of KR920008159Y1 publication Critical patent/KR920008159Y1/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
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • 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
    • B29C45/16—Making multilayered or multicoloured articles

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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

다단 단차 구조를 가진 합성수지 사출 성형물용 사출기의 취출장치Blowing device of injection machine for synthetic resin injection molding with multi-stage step structure

제1도는 본 고안을 갖춘 사출성형기에 있어서 성형중의 모습을 나타낸 단면도.1 is a cross-sectional view showing the state during molding in the injection molding machine equipped with the present invention.

제2도는 취출상태를 나타낸 단면도.2 is a cross-sectional view showing the extraction state.

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

1 : 고정측 금형 2 : 가동측 금형1: fixed side mold 2: movable side mold

4 : 코어 6 : 스프링4: core 6: spring

8 : 돌출부8: protrusion

본 고안은 카메라의 렌즈 홀더처럼 작은 칫수의 단차가 여럿있는 다단 합성수지 사출 성형물을 안전하게 취출할 수 있게 한 취출장치에 관한 것이다.The present invention relates to a take-out device that can safely take out a multi-stage synthetic resin injection molding having a small number of steps, such as a lens holder of a camera.

위에서 예로 든 렌즈 홀더같이 단차가 작고 정교한 사출 성형물의 경우, 금형에서 성형한 후 탈형할 때에는 그 단차에 흠을 남기는 일없이 안전하게 취출되도록 특별한 주의를 기울여야 한다.In the case of small and sophisticated injection moldings such as the lens holders mentioned above, special care must be taken to remove the mold after shaping it from the mold and to safely take it out without scratching the step.

특히 다단 단차와 함께 오목한 부분과 볼록한 부분을 가진 성형물일 경우에는 더욱 그러하다.This is especially true in the case of moldings having concave and convex portions with multiple steps.

본 고안은 이와같이 정교한 사출 성형물이 금형으로 부터 안전하게 또한 손쉽게 탈형되도록 취출하기 위한 장치를 제공하는 것을 목적으로 하며, 이에 그 구성과 작용효과에 대하여 상세히 설명한다.The object of the present invention is to provide an apparatus for taking out such a precise injection molding safely and easily demoulded from the mold, and will be described in detail the configuration and operation effects.

첨부도면에 있어서, 각 그림의 좌측 금형(1)을 고정측으로 하고, 우측 금형(2)은 가동측으로 한다.In the accompanying drawings, the left mold 1 of each figure is set to the fixed side, and the right mold 2 is set to the movable side.

고정 금형(1)에는 성형물(3)의 다단 단차 성형 및 취출에 이용하는 코어(4)가 설치되어 있다.The fixed die 1 is provided with a core 4 used for multi-step forming and taking out of the molded product 3.

더 자세히 말하면, 이 코어(4)는 그것과 같은 칫수의 내경을 갖고 고정측 금형(1)을 관통한 활동공내에서 이 활동공의 천공방향으로 미끄럼 왕복운동을 할 수 있게 내장되어 있으며, 이 코어(4)의 선단에는 다단 단차 성형구조가 형성되어 있고 후단에는 취출 방향으로의 이탈을 방지할 플랜지를 갖고 있다.More specifically, the core 4 is built in such a size that the inner diameter of the core 4 can slide and reciprocate in the drilling direction of the active hole in the active hole penetrating the stationary mold 1. At the tip of (4), a multistage step forming structure is formed, and the rear end has a flange to prevent separation in the take-out direction.

또한, 머리부쪽에는 머리부이 끝이 트인 홈(5)이 형성되어 있고 그 속에는 코어(4)가 항상 취출방향으로 쏠리게 하는 압축코일 스프링(6)이 장전되어 있다.Moreover, the head part is provided with the groove | channel 5 with the head end open, and the compression coil spring 6 which loads the core 4 always in the extraction direction is loaded in it.

그런, 가동 금형(2) 상에는 오직 다단 단차 성형물의 일부 성형에 필요한 구조만을 구비하고 있다.On the movable mold 2, only the structure necessary for the partial molding of the multi-stage step molding is provided.

이와같이 구성되는 본 고안에 있어서, 제1도와 같이 사출 성형중일 때에는 코어(4)가 가동 금형(2)의 돌출부(8)에 떼밀려서 머리부쪽으로 이동해 있다.In the present invention constituted as described above, the core 4 is pushed by the protrusion 8 of the movable mold 2 and moved to the head portion during injection molding as in FIG.

그러다가, 성형이 종료되고 가동 금형(2)이 제1도의 화살표 방향으로 물러나면 가동 금형(2)에 의해 받던 누름 압력이 제거되는 동시에 탄력적으로 압축돼 있던 스프링(6)이 팽창되면서 코어(4)를 선단쪽으로 밀치게된다.Then, when the molding is completed and the movable mold 2 retreats in the direction of the arrow in FIG. 1, the pressing pressure received by the movable mold 2 is removed, and the spring 6 that is elastically compressed is expanded while the core 4 is expanded. Will be pushed towards the tip.

그리하여 코어(4)는 고정 금형(1)에 머물던 성형물(3)을 자연스레 취출하게 되는 것이다.Thus, the core 4 naturally takes out the molded product 3 stayed in the stationary mold 1.

이때, 스프링(6)의 팽창압력은 고정 금형(1)의 성형실에 긴밀하게 끼어 있는 성형물의 저항 때문에 급작스럽게 작용하지 못하고 서서히 그 영향력을 발휘하므로 다단의 단차와 정교한 칫수로 성형된 성형물의 취출이 완속적이고 또한 부드럽게 이뤄져 정밀도 높은 정교한 성형물을 얻을 수가 있다.At this time, the expansion pressure of the spring (6) does not suddenly act due to the resistance of the molding tightly sandwiched in the molding chamber of the stationary mold (1), and gradually exerts its influence, so that the molded article is ejected from the multi-stage step and the precise dimension. This slow and smooth process results in highly precise and precise moldings.

Claims (1)

다단의 단차 성형이 요구되는 성형물 제조용 사출기에 있어서, 고정측 금형(1)의 취출 방향으로 코어활동공을 뚫고 여기에 취출방향으로 쏠리게 하는 스프링(6)을 장전하고 또한 선단에 다단 단차 성형구조를 가진 코어(4)를 내장하며, 가동측 금형(2)의 성형부에는 코어 제어용 돌출부(8)를 형성한 것을 특징으로 하는 다단 단차 구조를 가진 합성수지 사출 성형물 사출기의 취출 장치.In the injection molding machine for manufacturing a molded article requiring multi-step forming, a spring 6 for drilling a core activity hole in the take-out direction of the fixed side mold 1 and being oriented in the take-out direction is loaded and a multi-step step forming structure is provided at the tip. A device for ejecting an injection molding machine for a synthetic resin injection molding machine having a multi-stage step structure, having a built-in excitation core (4) and having a core control protrusion (8) formed in the molding portion of the movable side mold (2).
KR2019900018198U 1990-11-23 1990-11-23 Ejecting device for injection molding articles KR920008159Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900018198U KR920008159Y1 (en) 1990-11-23 1990-11-23 Ejecting device for injection molding articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900018198U KR920008159Y1 (en) 1990-11-23 1990-11-23 Ejecting device for injection molding articles

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KR920009166U KR920009166U (en) 1992-06-16
KR920008159Y1 true KR920008159Y1 (en) 1992-11-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112917817A (en) * 2021-01-19 2021-06-08 刘中原 Circulating double-colored injection molding device with prevent leaking function

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