KR200421109Y1 - Install structure of gate in goods - Google Patents

Install structure of gate in goods Download PDF

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Publication number
KR200421109Y1
KR200421109Y1 KR2020060010609U KR20060010609U KR200421109Y1 KR 200421109 Y1 KR200421109 Y1 KR 200421109Y1 KR 2020060010609 U KR2020060010609 U KR 2020060010609U KR 20060010609 U KR20060010609 U KR 20060010609U KR 200421109 Y1 KR200421109 Y1 KR 200421109Y1
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KR
South Korea
Prior art keywords
gate
product
pin
runner
mill pin
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KR2020060010609U
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Korean (ko)
Inventor
황용호
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구미에이테크솔루션주식회사
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Priority to KR2020060010609U priority Critical patent/KR200421109Y1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • B29C45/4435Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • B29C2045/4492Removing or ejecting moulded articles for undercut articles preventing damage or deformation of undercut articles during ejection

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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 수직 승하강 운동하는 런너 취출용 밀핀이 설치된 사출 성형 장치에 있어서 변형밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조에 관한 것으로, 수직 승하강 운동하는 런너 취출용 밀핀이 설치된 사출 성형 장치에 있어서, 제품 취출용 밀핀을 외측으로 경사지게 설치하고, 상기한 제품 취출용 밀핀의 내측면 모서리를 절단하여 사면을 형성하고, 상기한 사면에는 게이트를 형성하며, 하부코어에는 상기한 게이트와 연결되도록 런너를 성형하여, 제품의 내측에 게이트를 설치함과 아울러 제품 취출과정에서 게이트가 제품과 분리되도록 한 것이다.The present invention relates to a structure in which a gate is installed inside a product by using a strain mill pin in an injection molding apparatus provided with a runner take out pin which vertically moves up and down, and an injection molding device provided with a runner take out mill pin that moves up and down vertically. In the installation, the product extraction mill pin is inclined outwardly, and cut the inner edge of the product extraction mill pin to form a slope, the gate is formed on the slope, and the lower core is connected to the gate. By forming the runner, the gate is installed inside the product and the gate is separated from the product during the product extraction process.

언더컷, 사출금형, 게이트, 밀핀 Undercut, Injection Mold, Gate, Milpin

Description

변형밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조{Install structure of gate in goods}Install structure of gate in goods using strain pins

도 1a는 본 고안에 따른 변형밀핀을 이용하여 제품 내측에 게이트를 설치한 구조를 나타내는 평면도Figure 1a is a plan view showing a structure in which a gate is installed inside the product using a strain mill according to the present invention

도 1b는 도 1a의 측단면도FIG. 1B is a side cross-sectional view of FIG. 1A

도 2a는 본 고안에 따른 변형밀핀을 이용하여 제품 내측에 게이트 설치 구조에서 게이트가 제품과 분리된 상태를 나타내는 평면도Figure 2a is a plan view showing a state in which the gate is separated from the product in the gate installation structure inside the product using a strain mill according to the present invention

도 2b는 도 2a의 측단면도FIG. 2B is a side cross-sectional view of FIG. 2A

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

10 : 제품 취출용 밀핀 12 : 사면10: Mill pin for taking out the product 12: Slope

14 : 게이트 20 : 하부 코어14 gate 20 lower core

22 : 런너 30 : 가동측 형판 22: runner 30: movable side template

본 고안은 변형밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조에 관한 것으로, 보다 상세하게는 제품의 내측면에 게이트를 설치하고 제품 취출시 게이트 가 제품과 분리되어 제품에 손상을 주지 않도록 한 변형 밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조에 관한 것이다.The present invention relates to a structure in which a gate is installed inside the product by using a strain mill, and more particularly, a gate is installed on the inner side of the product, and when the product is taken out, the gate is separated from the product to prevent damage to the product. The present invention relates to a structure in which a gate is installed inside a product using a mil pin.

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 주입되어 성형되고, 성형이 완료된 후에는 밀판이 동작하여 밀핀이 승강하면서, 게이트와 성형물의 연결부분이 분리되어, 런너와 게이트 및 성형물이 분리되면서 취출된다.In the injection molding mold, the molten material is injected into the cavity of the mold, which is the molding space of the product, through injection spaces such as sprues, runners, and gates, and after the molding is completed, the mill is operated to push up the pin. At the same time, the connection portion of the gate and the molding is separated, and the runner, the gate, and the molding are separated and taken out.

상기한 성형과정에서 런너의 말단을 금형의 파팅 라인 보다 낮추어 캐비티의 측면부터 용융재료를 충전하는 방법의 게이트를 터널 게이트라고 하며, 통상 터널게이트는 성형 후 측면에 게이트 절단라인이 형성되지 않도록 하기 위하여 사용하는 것으로, 성형 완료 후 밀핀을 사용하여 제품 및 런너를 밀어내는 과정에서 제품과 게이트가 자동으로 절단된다In the above molding process, the gate of the method of filling the molten material from the side of the cavity by lowering the end of the runner than the parting line of the mold is called a tunnel gate. In general, the tunnel gate is formed so that the gate cutting line is not formed on the side after molding. After the molding is completed, the product and the gate are automatically cut in the process of pushing out the product and the runner using a mill pin.

상기한 절단과정을 살펴보면 제품을 취출하기 위한 밀핀에 게이트를 형성하여 금형을 열기 전에 밀핀을 회전시켜 게이트를 제품과 분리한 후 취출하였으나, 이를 위해서는 밀핀을 회전시키기 위한 별도의 구성이 필요하고, 회전과정에서 제품에 게이트 절단흔적이 발생될 수 있으며, 취출 과정에서 절단된 게이트는 런너와는 별도로 밀핀에 의하여 하부 코어로부터 분리되거나 별도의 분리를 위한 구조가 필요하므로 게이트를 분리하기 위한 구조가 복잡한 문제점이 있었다.Looking at the cutting process described above, the gate was formed on the mill pin to take out the product, and the mill was rotated before the mold was opened to separate the gate from the product. However, for this purpose, a separate configuration for rotating the mill pin is required. Gate cutting traces may be generated on the product in the process, and the gate cut in the extraction process is separated from the lower core by a milpin separately from the runner, or a structure for separate separation is required, so the structure for separating the gate is complicated. There was this.

또한, 상기한 바와 같은 터널 게이트는 통상 밀핀에 형성되어 제품의 하부에 수직으로 형성되므로 제품의 내부면 측벽에는 터널 게이트를 성형할 수 없었다.In addition, the tunnel gate as described above is usually formed in the milpin and formed perpendicular to the lower part of the product, so it was not possible to form the tunnel gate on the inner sidewall of the product.

상기한 문제점을 해결하기 위한 본 고안 목적은 제품의 내측면에 게이트를 설치하고 제품 취출시 게이트가 제품과 분리되어 제품에 손상을 주지 않도록 한 변형밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조를 제공하는 데 있다.The object of the present invention for solving the above problems is to install the gate on the inner side of the product and the structure to install the gate inside the product by using a deformation mill pin so that the gate is separated from the product and does not damage the product when taking out the product. To provide.

상기한 목적을 달성하기 위한 본 고안의 특징은 수직 승하강 운동하는 런너 취출용 밀핀이 설치된 사출 성형 장치에 있어서, 제품 취출용 밀핀을 외측으로 경사지게 설치하고, 상기한 제품 취출용 밀핀의 내측면 모서리를 절단하여 사면을 형성하고, 상기한 사면에는 게이트를 형성하며, 하부코어에는 상기한 게이트와 연결되도록 런너를 성형하여, 제품의 내측에 게이트를 설치함과 아울러 제품 취출과정에서 게이트가 제품과 분리되도록 한 것이다.In order to achieve the above object, a feature of the present invention is an injection molding apparatus provided with a runner takeout pin, which vertically moves up and down, and installs the product takeout mill pin to be inclined outward, and the inner edge of the product takeout mill pin. To form a slope, and the gate is formed on the slope, the runner is formed in the lower core to be connected to the gate, the gate is installed inside the product and the gate is separated from the product It was made possible.

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

도 1a는 본 고안에 따른 변형밀핀을 이용하여 제품 내측에 게이트를 설치한 구조를 나타내는 평면도이고, 도 1b는 도 1a의 측단면도이며, 도 2a는 본 고안에 따른 변형밀핀을 이용하여 제품 내측에 게이트 설치 구조에서 게이트가 제품과 분 리된 상태를 나타내는 평면도이고, 도 2b는 도 2a의 측단면도이다.Figure 1a is a plan view showing a structure in which the gate is installed inside the product using a strain mill according to the present invention, Figure 1b is a side cross-sectional view of Figure 1a, Figure 2a is a product inside the product using a strain mill according to the present invention FIG. 2B is a side cross-sectional view of FIG. 2A in which the gate is separated from the product in the gate mounting structure.

본 고안에 따른 변형 밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조는 크게, 외측으로 경사지게 설치되고, 상부 내측 모서리를 절단하여 형성된 사면(12)에 게이트(14)를 성형한 제품 취출용 밀핀(10)과, 상기한 제품 취출용 밀핀(10)의 게이트(14)와 연결되는 런너(22)가 형성된 하부코어(20)로 구성된다.The structure for installing the gate inside the product by using the modified mill pin according to the present invention is largely installed to be inclined to the outside, and the product extraction mill pin formed on the slope 12 formed by cutting the upper inner edge ( 10) and a lower core 20 in which a runner 22 is connected to the gate 14 of the above-described product extraction mill pin 10.

상기한 구성에서 제품 취출용 밀핀(10)은 외측으로 경사지게 가동측 형판(30)을 관통하여 설치되어 제품의 취출 과정에서 외측으로 경사지게 승강하도록 설치되며, 상기한 제품 취출용 밀핀(10)을 승강시키기 위한 설치구조는 해당업자에게 자명한 구성이므로 상세한 설명은 생략한다.In the above configuration, the product take-out mill pin 10 is installed to penetrate the movable side template 30 to be inclined outward, and is installed to be inclined outward in the process of taking out the product, and the product take-out mill pin 10 is elevated. The installation structure to ensure that the construction is obvious to the relevant company, so detailed description thereof will be omitted.

그리고 상기한 제품 취출용 밀핀(10)의 게이트(14) 설치구조를 보다 상세하게 살펴보면, 우선 밀핀(10)의 상부에 형성된 헤드부(16)는 내측면이 제품의 측면을 형성하도록 구성되고, 상기한 헤드부(16)의 내측면과 그에 인접한 면을 연결하는 모서리 부분을 절단하여 사면(12)을 형성하고, 상기한 사면(12)에는 하부코어(20)의 런너(22)와 연결되는 게이트(14)를 성형한다.And look at in detail the installation structure of the gate 14 of the mil pin 10 for taking out the product, first, the head portion 16 formed on the top of the mil pin 10 is configured so that the inner surface forms the side of the product, The inclined portion 12 is formed by cutting a corner portion connecting the inner surface of the head portion 16 and an adjacent surface thereof, and the slope 12 is connected to the runner 22 of the lower core 20. The gate 14 is formed.

이상과 같은 구성을 갖는 본 고안에 의하면 사출 성형 장치가 닫히는 과정에서 상기한 제품 취출용 밀핀(10)은 하강된 상태를 유지하도록 하여, 용융재료가 하부 코어(20)에 형성된 런너(22)와 제품 취출용 밀핀(10)에 형성된 게이트(14)를 통해서 제품의 내측면부터 주입되도록 한다.According to the present invention having the configuration as described above, the product take-out mill pin 10 in the process of closing the injection molding device to maintain the lowered state, the runner 22 and the molten material formed on the lower core 20 and It is to be injected from the inner side of the product through the gate 14 formed in the product extraction mill pin 10.

이후, 성형이 완료되면, 고정측이 가동측과 분리되고 이에 따라 상기한 제품 취출용 밀핀(10)과 이와 별도로 설치된 런너 취출용 밀핀(미도시)은 가동측에 형성된 이젝터판(미도시)에 의하여 동시에 승강하게 된다.Then, when the molding is completed, the fixed side is separated from the movable side, and thus the product take-out mill pin 10 and the runner take-out mill pin (not shown) installed separately therefrom are arranged on the ejector plate (not shown) formed on the movable side. By lifting at the same time.

이 과정에서 상기한 제품 취출용 밀핀(10)은 경사지게 설치되어 있으므로 승강운동과 함께 수평방향으로 이동하게 되고, 상기한 런너 취출용 밀핀은 수직 승강운동만 하므로, 상기한 게이트(14)는 도 1a 및 도 1b에 나타내는 바와 같은 언더컷 상태에서 도 2a 및 도 2b에 나타내는 바와 같이 제품 취출용 밀핀(10)과 분리되므로 언더컷에서 벗어나게 된다.In this process, the product take-out mill pin 10 is inclined so that it moves in the horizontal direction with the lifting movement, and the runner take-out mill pin only performs the vertical lift movement, so that the gate 14 is shown in FIG. 1A. And in the undercut state as shown in FIG. 1B, it is separated from the mill pin 10 for product takeout, as shown in FIGS. 2A and 2B, thereby leaving the undercut.

상기한 바와 같이 구성된 본 고안에 의하면 제품의 내부 측면에 게이트를 설치할 수 있게 되어 성형완료 후 게이트 절단부가 표시 나지 않게 되고, 제품의 취출과정에서 런너 및 게이트가 제품과 자동을 분리되어 성형완료 후 별도의 게이트 절단공정을 수행하지 않아도 되어 제품의 생산성과 품질이 향상되는 효과가 있다.According to the present invention configured as described above, the gate can be installed on the inner side of the product so that the gate cutting part is not displayed after the molding is completed, and the runner and the gate are separated from the product automatically after the molding is completed, and the molding is completed separately. There is no need to perform the gate cutting process of the product has the effect of improving the productivity and quality.

Claims (1)

수직 승하강 운동하는 런너 취출용 밀핀이 설치된 사출 성형 장치에 있어서,In an injection molding apparatus provided with a runner ejecting pin, which vertically moves up and down, 사출 성형 장치의 가동측에 외측으로 경사지게 승강하도록 설치되고, 상부 내측 모서리를 절단하여 형성된 사면에 게이트를 성형한 제품 취출용 밀핀과, It is installed on the movable side of the injection molding device to rise and fall outwards, and the product pins for pulling out the product formed by forming a gate on the slope formed by cutting the upper inner edge, 상기한 제품 취출용 밀핀의 게이트와 연결되는 런너가 형성된 하부코어로 구성되는 것을 특징으로 하는 변형밀핀을 이용하여 제품 내측에 게이트를 설치하는 구조.A structure for installing a gate inside the product by using a strain mill pin, characterized in that consisting of a lower core formed with a runner connected to the gate of the product take-out mill pin.
KR2020060010609U 2006-04-20 2006-04-20 Install structure of gate in goods KR200421109Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101646486B1 (en) * 2016-03-04 2016-08-05 삼보오토 주식회사 Mold with pushing pin
CN106393599A (en) * 2016-12-24 2017-02-15 浙江工商职业技术学院 Water gauge side core-pulling mold
KR101813677B1 (en) 2015-12-31 2018-01-02 주식회사 대성엘텍 Injection molding apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101813677B1 (en) 2015-12-31 2018-01-02 주식회사 대성엘텍 Injection molding apparatus
KR101646486B1 (en) * 2016-03-04 2016-08-05 삼보오토 주식회사 Mold with pushing pin
CN106393599A (en) * 2016-12-24 2017-02-15 浙江工商职业技术学院 Water gauge side core-pulling mold

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