KR200413709Y1 - Ejector plate for injection molder - Google Patents

Ejector plate for injection molder Download PDF

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Publication number
KR200413709Y1
KR200413709Y1 KR2020060002417U KR20060002417U KR200413709Y1 KR 200413709 Y1 KR200413709 Y1 KR 200413709Y1 KR 2020060002417 U KR2020060002417 U KR 2020060002417U KR 20060002417 U KR20060002417 U KR 20060002417U KR 200413709 Y1 KR200413709 Y1 KR 200413709Y1
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KR
South Korea
Prior art keywords
ejector rod
plate
mill
molding
gate
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KR2020060002417U
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Korean (ko)
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김용현
이종찬
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김용현
이종찬
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Priority to KR2020060002417U priority Critical patent/KR200413709Y1/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
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B29C45/401—Ejector pin constructions or mountings
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

본 고안은 사출금형의 2단 작동 밀판에 관한 것으로, 중심부에 상부보다 직경이 큰 단턱이 형성되고 상기한 단턱이 가동측 설치판에 관통되게 설치되는 이젝터봉과, 상기한 이젝터봉의 상단부와 직접 연결된 제 1밀판과, 상기한 이젝터봉의 상부가 관통되며 이젝터봉의 하강시 단턱과 일정한 간격을 갖는 제 2밀판과, 제 1밀판에 설치되어 게이트 및 런너를 밀어주는 제 1밀핀과, 제 2밀판에 설치되어 성형물을 밀어주는 제 2밀핀으로 구성되어 런너와 게이트가 먼저 취출되고 성형물이 취출되어 성형물의 파손을 방지하는 것이다.The present invention relates to a two-stage working compact plate of an injection mold, the ejector rod having a diameter larger than the upper end is formed in the center thereof, and the stepped jaw is installed to penetrate the movable side mounting plate, and the upper end of the ejector rod is directly connected. A first mill plate, a second mill plate penetrating the upper part of the ejector rod and having a predetermined gap with the stepped portion when the ejector rod descends, a first mill pin installed on the first mill plate to push the gate and the runner, and a second mill plate It consists of a second mil pin that pushes the molding so that the runner and the gate are taken out first and the molding is taken out to prevent breakage of the molding.

런너, 게이트, 밀판, 밀핀, 사출성형 Runner, Gate, Mill, Milpin, Injection Molding

Description

사출금형의 2단 작동 밀판{EJECTOR PLATE FOR INJECTION MOLDER}Two-stage working plate of injection mold {EJECTOR PLATE FOR INJECTION MOLDER}

도 1 내지 도 3은 본 고안에 따른 사출금형의 2단 작동 밀판을 나타내는 단면도1 to 3 is a cross-sectional view showing a two-stage operation of the injection mold according to the present invention

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

10 : 이젝터봉 12 : 단턱10: ejector rod 12: step

20 : 제 1밀판 30 : 제 2밀판20: first contact plate 30: second contact plate

40 : 런너 50 : 게이트40: runner 50: gate

60 : 제 1밀핀 70 : 성형물60: first mill pin 70: molding

80 : 제 2밀핀80 second pin

본 고안은 사출금형의 2단 작동 밀판에 관한 것으로, 보다 상세하게는 밀판을 이중으로 형성하여 시간차를 갖고 구동하도록 하고 각각에 설치된 밀핀이 사출금형에서 성형물과 게이트 및 런너를 각각 밀어줌으로써, 성형물과 게이트 및 런너의 충돌로 인한 성형물의 손상을 방지하는 사출금형의 2단 작동 밀판에 관한 것이다.The present invention relates to a two-stage working plate of an injection mold, and more specifically, to form a double plate to drive with a time difference, and the pins installed in each push the molding, gate and runner in the injection mold, respectively, The present invention relates to a two-stage working compact plate of an injection mold that prevents damage to a molding due to a collision of a gate and a runner.

일반적으로 사출성형은 열가소성 플라스틱 또는 열경화성 플라스틱 성형재료를 사출성형기 내에서 가열 용융한 후, 스크루를 통해 사출금형의 캐비티 내로 가압 주입하여 충전하고, 이를 고화 또는 경화하여 성형품으로서 꺼내는 성형방법이다.In general, injection molding is a molding method in which a thermoplastic or thermosetting plastic molding material is heated and melted in an injection molding machine, and then press-filled into a cavity of an injection mold through a screw, and solidified or cured and taken out as a molded product.

상기 사출성형용 금형에 있어서, 용융된 재료는 스프루, 런너 및 게이트 등의 주입공간을 통하여 제품의 성형공간인 금형의 캐비티 내로 주입되므로 성형품에는 상기 주입공간에 해당하는 불필요한 성형물(이하, 런너와 게이트로 칭함)이 일체로 성형되게 된다.In the injection molding die, the molten material is injected into the cavity of the mold, which is the molding space of the product through the injection space of the sprue, runner and gate, so that the molded article has unnecessary moldings corresponding to the injection space (hereinafter referred to as runner and Gates) are integrally molded.

이와 같이 성형된 후, 밀판이 동작하여 밀핀이 승강하면서, 게이트와 성형물의 연결부분이 분리되어, 런너와 게이트 및 성형물이 분리되면서 취출된다.After being molded in this way, the mill plate is operated and the pin is lifted, the connection portion of the gate and the molded product is separated, and the runner, the gate and the molded product are taken out while being separated.

그러나, 이와 같은 성형물의 취출과정에서 게이트와 성형물의 연결부분이 밀핀의 동작에 의하여 끊어지면서 게이트가 성형물을 치면서 성형물에 손상을 입히게 되는 문제점이 있었다.However, there is a problem in that the connection part of the gate and the molded part is broken by the operation of the mill pin in the process of taking out the molded part, and the gate hits the molded part and damages the molded part.

상기한 바와 같은 문제점을 해결하기 위한 본 고안의 목적은 밀판을 이중으로 형성하여 시간차를 갖고 구동하도록 하고, 밀판 각각에 설치된 밀핀이 성형물과 게이트 및 런너를 각각 밀어줌으로써, 성형물과 게이트 및 런너의 충돌로 인한 성형물의 손상을 방지하는 사출금형의 2단 작동 밀판을 제공하는 데 있다.An object of the present invention for solving the problems as described above is to form a double plate to drive with a time difference, and the pins installed on each of the plate push the molding, the gate and the runner, respectively, the collision of the molding, gate and runner It is to provide a two-stage working plate of the injection mold to prevent damage to the molding caused by.

상기한 바와 같은 목적을 달성하기 위한 본 고안의 특징은 중심부에 상부보 다 직경이 큰 단턱이 형성되고 상기한 단턱이 가동측 설치판에 관통되게 설치되는 이젝터봉과, 상기한 이젝터봉의 상단부와 직접 연결된 제 1밀판과, 상기한 이젝터봉의 상부가 관통되며 이젝터봉의 하강시 단턱과 일정한 간격을 갖는 제 2밀판과, 제 1밀판에 설치되어 게이트 및 런너를 밀어주는 제 1밀핀과, 제 2밀판에 설치되어 성형물을 밀어주는 제 2밀핀으로 구성되어 런너와 게이트가 먼저 취출되고 성형물이 취출되어 성형물의 파손을 방지하는 것이다.A feature of the present invention for achieving the object as described above is the ejector rod is formed in the central portion larger than the upper diameter stepped and the stepped through the movable side mounting plate, and directly connected to the upper end of the ejector rod A first mill plate, a second mill plate through which the upper part of the ejector rod penetrates and having a predetermined distance from the step when the ejector rod descends, a first mill pin installed on the first mill plate to push the gate and the runner, and a second mill plate installed on the second mill plate It consists of a second mil pin to push the molding, the runner and the gate is taken out first, and the molded product is taken out to prevent breakage of the molding.

상기한 바와 같은 특징을 갖는 본 고안의 실시예를 하기에서 첨부된 도면을 참조하여 상세히 설명한다.An embodiment of the present invention having the features as described above will be described in detail with reference to the accompanying drawings.

도 1내지 도 3은 본 고안에 따른 사출금형의 2단 작동 밀판을 나타내는 단면도이다.1 to 3 is a cross-sectional view showing a two-stage working plate of the injection mold according to the present invention.

본 고안에 따른 사출금형의 2단 작동 밀판은 도 1 내지 도 3에 나타내는 바와 같이 크게, 이젝터봉(10)에 의하여 즉시 구동되는 제 1밀판(20)과, 상기한 이젝터봉(10)의 단턱(12)에 의하여 제 1밀판(20)과 시간차를 두고 구동되는 제 2밀판(30) 및, 상기한 제 1밀판(20)에 설치되어 런너(40)와 게이트(50)를 밀어주는 제 1밀핀(60)과, 상기한 제 2밀판(30)에 설치되어 성형물(70)을 밀어주는 제 2밀핀(80)으로 구성된다.The two-stage working mill of the injection mold according to the present invention is large, as shown in FIGS. 1 to 3, and the first step of the first mill 20, which is immediately driven by the ejector rod 10, and the step of the ejector rod 10. A first second plate 30 driven at a time difference from the first plate 20 by the 12 and a first plate installed on the first plate 20 to push the runner 40 and the gate 50. It consists of a mil pin 60 and a second mil pin 80 installed on the second mil plate 30 to push the molding 70.

상기한 구성에서 이젝터봉(10)은 중간에 단턱(12)이 형성되는데, 이를 위하여 상기한 이젝터봉(10)은 상부는 좁고 하부는 상대적으로 넓게 형성되고, 가동측 설치판(92)에 형성된 통공(92a)을 상기한 단턱(12)이 관통하도록 설치되며, 상기한 이젝터봉(10)은 하강위치에서 단턱(12)이 통공(92a)의 상단부와 이격된다.In the above configuration, the ejector rod 10 has a stepped portion 12 formed in the middle. For this purpose, the ejector rod 10 has a narrow upper portion and a lower portion relatively wide, and is formed on the movable side mounting plate 92. The stepped portion 12 is installed to penetrate the through hole 92a, and the ejector rod 10 has the stepped portion 12 spaced apart from the upper end of the through hole 92a at the lowered position.

그리고, 상기한 제 1밀판(20)은 이젝터봉(10)의 상단에 일체로 설치되어 이젝터봉(10)의 승/하강에 따라 승/하강하며, 상기한 제 1밀판(20)에는 런너(40)의 하부에 설치되어 런너(40)와 게이트(50)를 밀어주는 제 1밀핀(60)이 일체로 설치된다.In addition, the first sealing plate 20 is integrally installed at the upper end of the ejector rod 10 to move up / down in accordance with the rising / falling of the ejector rod 10. The first mill pin 60 is installed below the 40 to push the runner 40 and the gate 50 integrally.

제 2밀판(30)은 제 1밀판(20)과 가동측 설치판(92)사이에 설치되어 승하강하며, 이젝터봉(10)의 상단부가 관통되는데, 상기한 이젝터봉(10)이 관통되는 안내공(32)은 단턱(12)의 직경보다 작게 형성된다. The second sealing plate 30 is installed between the first sealing plate 20 and the movable side mounting plate 92 to move up and down, and the upper end of the ejector rod 10 penetrates, and the ejector rod 10 penetrates. Guide hole 32 is formed smaller than the diameter of the step (12).

상기한 제 2밀판(30)에는 성형물을 밀어내는 제 2밀핀(80)이 일체로 설치된다.The second mill pin 30 is integrally provided with a second mill pin 80 for pushing a molded product.

한편, 도면중 미설명부호 96a, 96b는 제 1밀핀(60) 및 제 2밀핀(80)이 관통되는 금형의 가이드홀을 나타낸다.In the drawings, reference numerals 96a and 96b denote guide holes of the mold through which the first and second mill pins 60 and 80 are passed.

이상과 같은 구성을 갖는 본 고안의 실시예를 살펴본다.Look at the embodiment of the present invention having the configuration as described above.

우선, 사출작업이 완료되어 도 1에 나타내는 바와 같이 하강위치에 있던 이젝터봉(10)이 승강하면 상기한 이젝터봉(10)과 일체로 설치된 제 1밀판(20)이 도 2에 나타내는 바와 같이 승강하면서 제 1밀핀(60)에 의하여 게이트(50)와 성형물(70)의 연결부위(A)가 절단되면서 런너(40)와 게이트(50)가 먼저 취출되고, 도 3에 나타내는 바와 같이 이후 상기한 이젝터봉(10)의 단턱(12)이 상기한 제 2밀판(30)의 안내공(32) 단부에 걸려서 상기한 제 2밀판(30)이 이젝터봉(10)에 의하여 승강 하게 되므로 제 2밀핀(80)이 성형물(70)을 취출하게 된다.First, when the injection operation is completed and the ejector rod 10 in the lowered position is lifted as shown in FIG. 1, the first sealing plate 20 integrally installed with the ejector rod 10 is lifted as shown in FIG. 2. While the connection portion A of the gate 50 and the molding 70 is cut by the first mil 60, the runner 40 and the gate 50 are first taken out, and as shown in FIG. Since the step 12 of the ejector rod 10 is caught by the guide hole 32 end of the second sealing plate 30, the second sealing plate 30 is lifted and lifted by the ejector rod 10. 80 takes out the molding 70.

따라서, 런너(40)와 게이트(50)가 먼저 취출된 후 성형물(70)이 취출되므로 성형물(70)의 파손을 방지하게 된다.Therefore, since the runner 40 and the gate 50 are first taken out and then the molded product 70 is taken out, the damage to the molded product 70 is prevented.

상기한 바와 같은 구성에 의하면, 런너와 게이트가 먼저 취출된 후 성형물이 취출되므로 런너와 게이트로 인한 성형물의 파손이 방지되어 제품의 불량율이 대폭 감소되는 효과가 있다.According to the above configuration, since the runner and the gate are first taken out and then the molded product is taken out, damage to the molded product due to the runner and the gate is prevented, thereby significantly reducing the defective rate of the product.

그리고, 상기한 바와 같이 이젝터봉에 단턱을 형성하는 간단한 구성으로 밀판이 2단으로 동작되도록 구성이 간단하고 제조가 용이한 효과가 있다.And, as described above, the configuration is simple and easy to manufacture so that the mill plate is operated in two stages with a simple configuration to form a stepped in the ejector rod.

Claims (2)

중심부에 상부보다 직경이 큰 단턱이 형성되고 상기한 단턱이 가동측 설치판에 관통되게 설치되는 이젝터봉과,An ejector rod having a diameter larger than that of the upper portion formed in the center portion thereof, and the stepped portion being penetrated by the movable side mounting plate; 상기한 이젝터봉의 상단부와 직접 연결된 제 1밀판과,A first sealing plate directly connected to the upper end of the ejector rod; 상기한 이젝터봉의 상부가 관통되며 이젝터봉의 하강시 단턱과 일정한 간격을 갖는 제 2밀판과,A second sealing plate through which the upper part of the ejector rod penetrates and has a predetermined distance from the step when the ejector rod is lowered; 제 1밀판에 설치되어 게이트 및 런너를 밀어주는 제 1밀핀과,A first mil pin installed in the first mil plate to push the gate and the runner, 제 2밀판에 설치되어 성형물을 밀어주는 제 2밀핀으로 구성되는 것을 특징으로 하는 사출금형의 2단 작동 밀판.A two-stage working mill of the injection mold, characterized in that the second mill pin is installed on the second mill to push the molding. 제 1항에 있어서, 상기한 이젝터봉은 단턱이 형성되도록 하부가 넓고 상부가 좁게 형성된 것을 특징으로 하는 사출금형의 2단 작동 밀판.According to claim 1, wherein the ejector rod is a two-stage operation sealing plate of the injection mold, characterized in that the lower portion is wider and the upper portion is formed so that the stepped jaw is formed.
KR2020060002417U 2006-01-26 2006-01-26 Ejector plate for injection molder KR200413709Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042984B1 (en) * 2010-04-28 2011-06-21 재영엠티에스 주식회사 Method for taking out an injection-molded product and the apparatus capable of carrying out the method
KR20220085873A (en) 2020-12-15 2022-06-23 에이테크솔루션(주) Extraction apparatus of injection molding
CN115816772A (en) * 2022-11-11 2023-03-21 青岛海尔空调器有限总公司 Forming die

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042984B1 (en) * 2010-04-28 2011-06-21 재영엠티에스 주식회사 Method for taking out an injection-molded product and the apparatus capable of carrying out the method
KR20220085873A (en) 2020-12-15 2022-06-23 에이테크솔루션(주) Extraction apparatus of injection molding
CN115816772A (en) * 2022-11-11 2023-03-21 青岛海尔空调器有限总公司 Forming die

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