KR200422458Y1 - Balanced filling practicable three-way mold - Google Patents

Balanced filling practicable three-way mold Download PDF

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Publication number
KR200422458Y1
KR200422458Y1 KR2020060012494U KR20060012494U KR200422458Y1 KR 200422458 Y1 KR200422458 Y1 KR 200422458Y1 KR 2020060012494 U KR2020060012494 U KR 2020060012494U KR 20060012494 U KR20060012494 U KR 20060012494U KR 200422458 Y1 KR200422458 Y1 KR 200422458Y1
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South Korea
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runner
hot
mold
gate
balanced
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KR2020060012494U
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Korean (ko)
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제덕근
정영득
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제덕근
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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
    • B29C45/26—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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2756—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
    • B29C45/26—Moulds
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • 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
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/274—Thermocouples or heat sensors
    • 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
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/2743—Electrical heating element constructions
    • 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
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C2045/328—Moulds having several axially spaced mould cavities, i.e. for making several separated articles having a movable mould plate between two fixed mould plates

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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 사출성형용 3단 금형에 있어서 성형 제품이 다수개이며 핀포인트-게이트가 3개인 경우 게이트 밸런스가 나오지 않아 제품의 진원도가 저하되는 폐단을 일소하기 위하여 3단 콜드-런너(cold runner)와 핫-런너(hot runner)를 조합하는 구조적 특징으로 진원도가 우수한 제품을 성형할 수 있도록 균형 충전이 가능한 3단 금형을 제공코자 하는 것이다.The present invention is a three-stage cold runner for eliminating the closed end of the roundness of the product because the gate balance does not come out when there are many molded products and three pinpoint-gates in the injection molding three-stage mold. The structural features of the combination of the hot runner (hot runner) and to provide a three-stage mold that can be balanced and filled to form a round product.

즉, 본 고안에서 제공하는 균형 충전이 가능한 3단 금형(M)은 3단으로 개방되는 사출성형용 3단 금형(M)에서 고정측 형판(6)과 가동측 형판(8) 상간에 형성되는 성형 제품 캐비티(3) 내로 수지(resin)의 점도가 일정하게 균형 충전시킬 수 있는 균형 충전이 가능한 3단 금형(M)을 구성하되, 상기 금형(M)의 스푸루-런너(1)를 형성하는 런너(1a,1b)는 센서를 갖는 히터(14,15)가 내장된 핫-매니폴더-블록(7)과 핫-런너부시(15)로 이루어지는 핫-런너(hot runner)로 이루어지고, 상기 캐비티(3)와 연통되며 런너(1b)에서 3방향 분기되는 핀포인트-게이트(1c)는 콜드-런너(cold runner)로 이루어진 것을 특징으로 하는 바,That is, the three-stage mold (M) capable of balanced filling provided in the present invention is formed between the fixed side template (6) and the movable side template (8) in the injection molding three-stage mold (M) opened in three stages. A three-stage mold (M) capable of balanced filling in which the viscosity of the resin is constantly balanced and filled into the molded product cavity (3) is formed, and the sprue-runner (1) of the mold (M) is formed. Runner (1a, 1b) is composed of a hot runner (hot runner) consisting of a hot-manifold block (7) and a hot-runner bush (15) in which heaters (14, 15) with sensors are built-in, The pin point-gate 1c communicating with the cavity 3 and branching in three directions from the runner 1b may be formed of a cold runner.

이러한 본 고안의 3단 금형(M)은 사출성형용 금형에서 동시에 다수개(4개 이상) 원형상의 성형 제품(2)을 사출성형할 시에 3방향으로 분기된 핀포인트-게이트(1c)에서 밸런스가 나오지 않아 진원도가 저하되고, 그로 인하여 제품의 불량이 발생하는 문제점을 스푸루-런너(1) 중 런너(1a,1b)를 핫-런너로 구성하고, 핀포인트-게이트(1c)는 콜드-런너로 구성하여 균형 충전 및 제품의 불량률을 일소할 수 있어 양질의 제품을 양산할 수 있는 것이다.The three-stage mold (M) of the present invention is a pin point-gate (1c) branched in three directions when injection molding a plurality of (four or more) circular molded products (2) at the same time in the injection molding mold The balance does not come out, the roundness is lowered, and thus the problem that product defects occur is composed of the runners 1a and 1b of the sprue runner 1 as a hot runner, and the pinpoint gate 1c is cold. -By constructing with a runner, it is possible to mass-produce high-quality products by balancing the filling and eliminating the defective rate of the product.

균형 충전이 가능한 3단 금형, 스푸루-런너, 히터, 핫-매니폴더-블록, 핫-런너부시, 핫-런너(hot runner), 핀포인트-게이트, 콜드-런너(cold runner) 3 stage molds with balanced charging, sprue-runner, heater, hot-manifold-block, hot-runner bush, hot runner, pinpoint-gate, cold runner

Description

균형 충전이 가능한 3단 금형{Balanced filling practicable three-way mold}Balanced filling practicable three-way mold}

도 1은 본 고안의 3단 금형에서 스푸루-런너의 구성과 제품을 보인 사시도Figure 1 is a perspective view showing the configuration and products of the sprue runner in the three-stage mold of the present invention

도 2는 본 고안에서 제공하는 3단 금형의 구성을 보인 단면 구성도Figure 2 is a cross-sectional view showing the configuration of a three-stage mold provided by the present invention

도 3은 본 고안에서 제공하는 3단 금형의 A-A 선 횡단면도3 is a cross-sectional view taken along line A-A of the three-stage mold provided by the present invention.

■ 도면의 주요부분에 사용된 부호의 설명 ■■ Explanation of symbols used in main part of drawing ■

M: 금형 1: 스푸루-런너M: mold 1: sprue-runner

1a: 런너 1b: 런너1a: Runner 1b: Runner

1c: 핀포인트-게이트 1d: 스푸루1c: pinpoint-gate 1d: sprue

2: 제품 3: 캐비티2: product 3: cavity

4,5: (상하)런너취출판 6: 고정측 형판4,5: (up and down) runner publication plate 6: fixed side

7: 핫-매니폴더-블록(hot manifold block) 8: 고정측 설치판7: hot manifold block 8: fixed side mounting plate

9: 가동측 형판 10: 스페이스블록9: movable side template 10: space block

11,12: (상하)이젝트플레이트 13: 가동측 설치판11, 12: Eject plate 13: movable side mounting plate

14: 히터 15: 핫-런너부시14: Heater 15: Hot-runner bush

16: 히터16: heater

본 고안은 균형 충전이 가능한 3단 금형에 관한 것으로서, 더욱 상세히는 사출성형용 금형에 있어서 성형 제품이 다수개이며 핀포인트-게이트가 3개인 경우 게이트 밸런스가 나오지 않아 제품의 진원도가 저하되는 폐단을 일소하기 위하여 3단 콜드-런너(cold runner)와 핫-런너(hot runner)를 조합하는 구조적 특징으로 진원도가 우수한 제품을 성형할 수 있도록 균형 충전이 가능한 3단 금형을 제공코자 하는 것이다.The present invention relates to a three-stage mold capable of balanced filling, and more particularly, in the injection molding mold, a plurality of molded products and three pinpoint-gates do not have gate balance to reduce the roundness of the product. In order to purify, the structural characteristics of the combination of three-stage cold runner and hot runner are to provide a three-stage mold that can be balanced and filled to form a round product.

통상 각종 합성수지재의 성형품을 제조할 시에 사용되는 금형에 있어서 용융된 수지(resin)는 캐비티(cavity) 내로 인젝션하기 위하여 스푸루-런너(sprue-runner)를 통하여 공급된다.In a mold generally used in manufacturing molded articles of various synthetic resin materials, molten resin is supplied through sprue-runners to inject into a cavity.

그러나 이러한 스푸루-런너는 성형되는 제품이 원형상으로 이루어지고, 그 개수가 4개이며, 게이트가 3개인 경우에는 게이트 밸런스가 나오지 않아 금형의 캐비티에 충전되는 수지가 균형 충전이 이루어지지 않아 제품의 진원도가 저하되는 불량이 발생하는 문제점이 있었다.However, these sprue-runners are formed in a circular shape, and the number is four, and in the case of three gates, the gate balance does not come out so that the resin filling the cavity of the mold is not balanced. There was a problem that a defect occurs that the roundness of the decrease.

이는 도 1 및 도 2에서 보는 바와 같이 금형(M)에 형성되는 스푸루-런너(1) 를 통하여 좌우로 각각 4개씩의 성형 제품(2)이 성형되는 캐비티(3) 상으로 수지가 인젝션될 시에 좌우로 스프루-런너(1) 단부에서 수평방향으로 좌우로 분기되는 런너(1a)를 통하여 수지는 런너(1a)의 단부에서 하향되는 런너(1b)를 통해 3방향으로 분기된 핀포인트-게이트(1c)를 통하여 캐비티(3) 내로 인젝션이 이루어지는데,As shown in FIGS. 1 and 2, the resin is injected into the cavity 3 in which four molded products 2 are formed from side to side through the sprue-runner 1 formed in the mold M, respectively. Resin is branched in three directions through the runner 1b which is downwardly oriented at the end of the runner 1a through the runner 1a which is branched horizontally at the end of the sprue-runner 1 at the left and right. Injection is made into the cavity 3 through the gate 1c,

상기 수지 인젝션 과정 중에서 런너(1b)에서 3방향으로 분기된 핀포인트-게이트(1c)에 게이트 밸런스(balance)가 나오지 않아 원형상의 제품 성형 시에 진원도가 저하되어 성형되는 제품이 불량제품이 생산되는 문제점을 안고 있었던 것이다.In the resin injection process, a gate balance is not generated at the pinpoint gate 1c branched in the three directions from the runner 1b, so that roundness is reduced when the circular product is molded, and the molded product is defective. I was having a problem.

결국 이러한 현상[본 고안의 명세서에서는 이러한 현상을 '트랙 이펙트(track effect)'라 칭하여 설명키로 한다.]은 런너(1b)에서 3방향으로 분기되는 지점, 즉 내측부와 외측부에서 충전되는 수지의 속도차이에 의해 야기되는 불균형 충전현상이며, 이를 해결할 수 있는 방안이 절실히 요망되어 왔던 것이다.As a result, this phenomenon (in the specification of the present invention, this phenomenon will be referred to as a 'track effect') will be described as the speed of the resin filled at the point branched in three directions in the runner 1b, that is, the inner and outer parts. Unbalanced charging caused by the difference, and how to solve this has been desperately desired.

이에 본 고안에서는 상기한 바와 같이 기존 사출성형용 3단 금형에 있어서 4개 이상의 제품을 3개의 게이트를 통하여 성형할 시에 발생하는 수지의 점도(粘度) 상이, 즉 충전 불량을 사전에 차단할 수 있도록 한 균형 충전이 가능한 3단 금형을 제공코자 하는 것으로서,In this invention, as described above, in the conventional three-step mold for injection molding, the viscosity difference of resin generated when molding four or more products through three gates, that is, to prevent the filling failure in advance, can be blocked. To provide a three-stage mold that can be balanced balanced,

본 고안은 특히 사출성형용 3단 금형을 구성하되, 콜드-런너(cold runner)와 핫-런너(hot runner)를 조합하여 게이트 밸런스 불균일로 인한 수지의 불균형 충전 현상을 일소하는 3단 금형을 제공함에 고안의 기술적 과제를 두고 본 고안을 완성한 것이다.The present invention provides a three-stage mold that constitutes a three-stage mold for injection molding, but eliminates the imbalanced filling of resin due to gate balance unevenness by combining a cold runner and a hot runner. The present invention has been completed with the technical problem of the devised.

도 1은 본 고안에서 제공하는 균형 충전이 가능한 금형(M)에 의해 제품 성형 후 취출되는 스푸루-런너(1)와 제품(2)의 일예를 도시한 사시도이며, 도 2는 본 고안의 금형(M)을 보인 단면 구성도, 도 3은 본 고안의 금형(M)을 보인 A-A 선 횡단면도 등으로서, 상기 도면과 함께 본 고안을 상세히 설명하면 다음과 같다. 단, 종래 기술설명에서 사용한 구성부재의 부호는 동일부호를 사용하여 설명키로 한다.1 is a perspective view showing an example of a sprue runner 1 and a product 2 taken out after molding a product by a mold M capable of balanced filling provided in the present invention, and FIG. 2 is a mold of the present invention. 3 is a cross-sectional configuration view showing (M), Figure 3 is a cross-sectional view AA line and the like showing the mold (M) of the present invention, when the present invention is described in detail with the drawings as follows. However, the code | symbol of the structural member used by the prior art description is abbreviate | omitted using the same code | symbol.

본 고안의 금형(M)은 3단으로 순차 개방되는 통상의 3단 금형(M)에 있어서, 상하 런너취출판(4,5)이 고정측 형판(6) 상부에 설치되고, 상부 런너취출판(4) 상부에는 핫-매니폴더-블록(hot manifold block; 7)이 고정측 설치판(8) 상간에 설치된다.In the mold M of the present invention, in a conventional three-stage mold M which is sequentially opened in three stages, upper and lower runner take-out plates 4 and 5 are provided on the fixed side mold plate 6, and the upper runner take-out plate is (4) In the upper portion, a hot manifold block 7 is provided between the fixed side mounting plates 8.

그리고 고정측 형판(6)과 연접된 하부의 가동측 형판(9) 하부에는 스페이스블록(10)과 상하 이젝트플레이트(11,12)가 설치되고 최하측에는 가동측 설치판(13)이 설치된다.In addition, a space block 10 and upper and lower eject plates 11 and 12 are installed at a lower portion of the movable side template 9 which is in contact with the stationary side template 6, and a movable side mounting plate 13 is installed at the lowermost side.

상기 고정측 형판(6)과 가동측 형판(9) 상간에 수지가 충전되어 제품이 성형되는 캐비티(3)가 형성되고, 상기 캐비티(3) 상으로 수지를 충전하는 통로인 스푸루-런너(1)가 고정측 설치판(8)과 핫-매니폴더-블록(7), 상하 런너취출판(4,5)을 통하여 최종적으로 핀포인트-게이트(1c)를 통하여 충전되도록 되어 있다.A cavity 3 is formed between the stationary side plate 6 and the movable side plate 9 to form a product, and a sprue-runner which is a passage for filling the resin onto the cavity 3 ( 1) is finally filled through the pinpoint gate 1c through the fixed side mounting plate 8, the hot-manifold block 7, and the upper and lower runner take-out plates 4 and 5;

즉, 상기 캐비티(3) 상으로 수지를 충전하기 위한 스푸루-런너(1)가 고정측 설치판(8)과 핫-매니폴더-블록(7), 상하 런너취출판(4,5)을 통하여 최종적으로 핀포인트-게이트(1c)를 통하여 충전토록 하되, 상기 스푸루-런너(1)의 스푸루(1d)에서 수평방향으로 좌우로 분기된 런너(1a)가 형성되는 핫-매니폴더-블록(7)상에는 센서(미도시)를 갖는 히터(14)가 설치되고, 상기 런너(1a)에서 수직방향으로 분기되는 런너(1b)를 형성하는 핫-런너부시(15)상에도 센서(미도시)를 갖는 히터(16)를 설치하여 핫-런너로 구성토록 하며, 상기 런너(1b)에서 3방향으로 분기되도록 고정측 형판(6)에 형성되는 핀포인트-게이트(1c)는 콜드-런너로 구성토록 한다. 상기 핀포인트-게이트(1c)는 물론 캐비티(3)와 연통되도록 구성한다.That is, the sprue runner 1 for filling the resin into the cavity 3 includes the fixed side mounting plate 8, the hot-manifold block 7, and the upper and lower runner ejection plates 4 and 5. Finally, through the pinpoint-gate 1c, the hot-manifold is formed so that the runner 1a branched horizontally from the sprue 1d of the sprue-runner 1 in the horizontal direction is formed. A heater 14 having a sensor (not shown) is provided on the block 7, and a sensor (not shown) is formed on the hot-runner bush 15 that forms the runner 1b branching in the vertical direction from the runner 1a. And a heater 16 provided with a hot runner, and the pinpoint gate 1c formed in the fixed side template 6 so as to branch in three directions from the runner 1b is a cold runner. It should be configured as The pinpoint gate 1c is, of course, configured to communicate with the cavity 3.

도면중의 부호 17는 이젝터핀(ejector pin), 18,19,20은 풀러볼트(puller bolt) 등을 도시한 것이다.In the drawing, reference numeral 17 denotes an ejector pin, 18, 19, and 20 denote a puller bolt, and the like.

상기와 같이 구성될 수 있는 본 고안의 균형 충전이 가능한 3단 금형(M)은 각종 원형상의 제품을 하나의 금형에서 다수개(4개 이상, 도시한 예는 4개인 경우임) 사출성형할 시에 각 캐비티(3) 마다 수지의 균형 충전이 가능하여 진원도가 우수한 원형상의 제품(2)을 성형할 수 있는 것으로서,The three-stage mold (M) capable of balanced filling of the present invention, which can be configured as described above, is used when injection molding a plurality of circular shaped products in one mold (more than four, four illustrated examples). It is possible to form a circular shaped product (2) having excellent roundness by being able to balance filling of resin in each cavity (3),

도 2에서 보는 바와 같이 금형(M)을 폐쇄하고 스푸루-런너(1)를 통하여 용융된 수지를 인젝션하게 되면 수지는 스푸루(1d)를 통해 제품이 성형되는 각각의 캐비티(3) 내로 런너(1b)와 핀포인트-게이트(1c)를 통해 주입된다.As shown in FIG. 2, when the mold M is closed and the molten resin is injected through the sprue runner 1, the resin is runner into each cavity 3 through which the product is molded through the sprue 1d. It is injected through 1b and pinpoint gate 1c.

이때 본 고안의 금형(M)은 스푸루(1d)에서 좌우 수평방향으로 분기 형성된 런너(1a)를 통하여 이의 좌우단부에서 수직방향으로 꺾인 런너(1b)를 경유한 후 수직하방으로 꺽여 3방향으로 분기된 핀포인트-게이트(1c)를 통하여 수지가 캐비티(3) 상으로 주입되는데, 상기 수지가 스푸루-런너(1)를 통하여 주입되는 과정 중 핀포인트-게이트(1c)를 제외한 런너(1a,1b) 부분이 히터(14,15)에 의해 핫-런너로 이루어지므로 용융수지가 트랙 이펙트 현상에 의한 수지의 내외 유속 차이에 의한 점도 차이 및 충전 불균형 현상이 방지되는 것이다.At this time, the mold (M) of the present invention passes through the runner (1b) branched in the left and right horizontal direction from the sprue (1d) via the runner (1b) bent in the vertical direction at the left and right ends thereof, and then bent vertically downward in three directions. Resin is injected into the cavity 3 through the branched pinpoint gate 1c, and the runner 1a except the pinpoint gate 1c is in the process of being injected through the sprue-runner 1. Since the portion 1b is formed as a hot-runner by the heaters 14 and 15, the molten resin is prevented from the difference in viscosity and filling imbalance due to the difference in the flow velocity of the resin due to the track effect phenomenon.

결국, 본 고안은 핀포인트-게이트(1c)만 콜드-런너로 이루어지고, 차기 성형 시에는 핫-런너 부위에 용융수지가 잔류하고 있다가, 핀포인트-게이트(1c)를 통하여 용융수지가 충전되어 3방향으로 분기된 핀포인트-게이트(1c)에서 밸런스가 나오지 않아 제품(2)의 진원도가 저하되는 불량을 미연에 방지하게 된다.As a result, the present invention consists only of the cold runner of the pinpoint-gate 1c, and the molten resin remains in the hot-runner portion during the next molding, and the molten resin is filled through the pinpoint-gate 1c. Therefore, the balance does not come out from the pinpoint gate 1c branched in three directions, thereby preventing a defect in which the roundness of the product 2 is lowered.

참고로, 금형(M)의 형 개방순서는 원문자로 좌측에 표시한 바와 같이 이루어지며, 이러한 형 개방작동 및 제품 취출작동 등은 일반적인 3단 금형에서와 동일하게 이루어지는 것이므로 상세한 설명은 생략키로 한다.For reference, the mold opening order of the mold (M) is made as shown in the left side in the original letters, such mold opening operation and product take-out operation is made in the same way as in the general three-stage mold, detailed description thereof will be omitted.

이상에서 상세히 살펴 본 바와 같이 본 고안에서 제공하는 균형 충전이 가능한 3단 금형(M)은 사출성형용 금형에서 동시에 다수개(4개 이상) 원형상의 성형 제품(2)을 사출성형할 시에 3방향으로 분기된 핀포인트-게이트(1c)에서 밸런스가 나오지 않아 진원도가 저하되고, 그로 인하여 제품의 불량이 발생하는 문제점을 스푸루-런너(1) 중 런너(1a,1b)를 핫-런너로 구성하고, 핀포인트-게이트(1c)는 콜드-런 너로 구성하여 균형 충전 및 제품의 불량률을 일소할 수 있어 양질의 제품을 양산할 수 있는 것이다.As described in detail above, the three-stage mold (M) capable of balanced filling provided in the present invention may be applied to injection molding a plurality of (four or more) circular shaped products (2) at the same time in an injection molding mold. In the spur runner 1, the runners 1a and 1b are hot-runners. The pinpoint-gate 1c is configured as a cold runner, so that it is possible to mass-produce a high-quality product by eliminating the balanced charging and defective rate of the product.

Claims (1)

3단으로 개방되는 사출성형용 3단 금형(M)에서 고정측 형판(6)과 가동측 형판(8) 상간에 형성되는 성형 제품 캐비티(3) 내로 수지의 점도가 일정하게 균형 충전시킬 수 있는 균형 충전이 가능한 3단 금형(M)을 구성함에 있어서;In the three-stage mold for injection molding (M), which is opened in three stages, the viscosity of the resin can be uniformly balanced and filled into the molded product cavity (3) formed between the stationary side template (6) and the movable side template (8). In constructing a three-stage mold (M) capable of balanced filling; 상기 금형(M)의 스푸루-런너(1)를 형성하는 런너(1a,1b)는 센서를 갖는 히터(14,15)가 내장된 핫-매니폴더-블록(7)과 핫-런너부시(15)로 이루어지는 핫-런너(hot runner)로 이루어지고,The runners 1a and 1b forming the sprue runner 1 of the mold M include a hot-manifold block 7 and a hot-runner bush in which heaters 14 and 15 having sensors are incorporated. 15) consisting of a hot runner (hot runner), 상기 캐비티(3)와 연통되며 런너(1b)에서 3방향 분기되는 핀포인트-게이트(1c)는 콜드-런너(cold runner)로 이루어진 것을 특징으로 하는 균형 충전이 가능한 3단 금형.The pin point-gate (1c) which is in communication with the cavity (3) and branched in three directions from the runner (1b) is a three-stage mold capable of balanced filling, characterized in that consisting of a cold runner (cold runner).
KR2020060012494U 2006-05-10 2006-05-10 Balanced filling practicable three-way mold KR200422458Y1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101091067B1 (en) * 2011-02-18 2011-12-08 주식회사 광덕에이앤티 A gear wheel and manufacturing method thereof
KR101092523B1 (en) * 2011-02-18 2011-12-13 주식회사 광덕에이앤티 Manufacturing method of gear wheel
KR101410790B1 (en) * 2011-07-15 2014-07-01 주식회사 광덕에이앤티 Manufacturing method of a gear wheel manufacturing method
WO2017018712A3 (en) * 2015-07-30 2017-03-30 ㈜건우정공 Injection molding apparatus
KR101787571B1 (en) 2017-07-24 2017-11-15 (주)건우정공 Injection molding apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101091067B1 (en) * 2011-02-18 2011-12-08 주식회사 광덕에이앤티 A gear wheel and manufacturing method thereof
KR101092523B1 (en) * 2011-02-18 2011-12-13 주식회사 광덕에이앤티 Manufacturing method of gear wheel
WO2012111925A2 (en) * 2011-02-18 2012-08-23 주식회사 광덕A&T Gear wheel and method for manufacturing gear wheel
WO2012111925A3 (en) * 2011-02-18 2012-11-01 주식회사 광덕A&T Gear wheel and method for manufacturing gear wheel
US9068647B2 (en) 2011-02-18 2015-06-30 Kwangduck A & T Gear wheel and method for manufacturing gear wheel
KR101410790B1 (en) * 2011-07-15 2014-07-01 주식회사 광덕에이앤티 Manufacturing method of a gear wheel manufacturing method
WO2017018712A3 (en) * 2015-07-30 2017-03-30 ㈜건우정공 Injection molding apparatus
KR101787571B1 (en) 2017-07-24 2017-11-15 (주)건우정공 Injection molding apparatus

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