KR100882291B1 - Injection mold assembly for undercutless article - Google Patents

Injection mold assembly for undercutless article Download PDF

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Publication number
KR100882291B1
KR100882291B1 KR1020070101344A KR20070101344A KR100882291B1 KR 100882291 B1 KR100882291 B1 KR 100882291B1 KR 1020070101344 A KR1020070101344 A KR 1020070101344A KR 20070101344 A KR20070101344 A KR 20070101344A KR 100882291 B1 KR100882291 B1 KR 100882291B1
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South Korea
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mold
core
injection
article
air
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KR1020070101344A
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Korean (ko)
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노윤호
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노윤호
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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
    • B29C45/34—Moulds having venting 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
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure
    • 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
    • B29C2045/4078—Removing or ejecting moulded articles using stripping means

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

Abstract

A mold assembly for article without undercut is provided to separate and eject the molded product from the core smoothly by injecting compressed air. A mold assembly for article without undercut comprises a core(10), a mold body(20) consisting of a first main body(21) and a second main body(22) which are combined with a core to form a cavity(C), a stripper plate(30) which is arranged between the core and the first main body and in which a compressed air inflow path(31) is formed, a first air exhaust passage(A1) formed in the contact side of the first main body and the stripper plate of the mold body, and a second air exhaust passage(A2) formed in the contact side of the first main body and the second main body of the mold body.

Description

언더컷이 없는 사출물품을 위한 금형조립체{INJECTION MOLD ASSEMBLY FOR UNDERCUTLESS ARTICLE}Mold assembly for injection-free injection parts {INJECTION MOLD ASSEMBLY FOR UNDERCUTLESS ARTICLE}

본 발명은 금형본체에 공기배출로를 형성하여 캐비티에 용융 수지가 원활하게 주입될 수 있도록 하고, 공기압입로를 형성하여 성형이 완료된 사출물품의 원활한 배출(ejecting)이 이루어지도록 하는 언더컷이 없는 사출물품을 위한 금형조립체에 관한 것이다.The present invention forms an air discharge path in the mold body so that molten resin can be smoothly injected into the cavity, and an air cut path is formed so that the injection molding without the undercut is performed to smoothly eject the injection molded product. A mold assembly for an article.

일반적으로 언더컷이 없는 사출물품은 코어와, 상기 코어와 결합되어 캐비티를 형성하는 금형으로 이루어지고, 상기 금형의 일단에 용융 수지를 주입하기 위한 주입구가 형성되어 있어, 이를 통해 용융 수지를 주입하여 충진시킨 후, 냉각수에 의해 냉각되면서 성형이 이루어지며, 성형이 완료되면 구동장치에 의해 코어와 금형을 분리시키고, 성형된 사출물품을 상기 코어로부터 배출하게 된다.In general, an injection-free article without an undercut consists of a core and a mold coupled to the core to form a cavity, and an injection hole for injecting molten resin is formed at one end of the mold, thereby injecting the molten resin and filling the same. After the molding, the molding is performed while being cooled by the cooling water. When the molding is completed, the core and the mold are separated by the driving device, and the molded injection article is discharged from the core.

이때 원활한 배출을 위하여 제안된 기술로는 대한민국등록실용신안공보 제20-0125144호 "사출 성형기의 취출장치"로써, 도 6a 및 도 6b를 참조하면, 금형틀(108)을 벌려 성형된 성형제품(110)에서 분리되도록 구동력을 제공해 주는 구동부와, 상기 구동부가 작동됨과 동시에 회동함으로써 성형제품(110)이 금형틀(108)에서 이탈되도록 분리해주는 상·하 분리부와, 상기 상·하 분리부가 동작되어 성형제품(110)을 이탈시킬 때 공기가 유통되도록 금형틀(108)에 형성된 통기공(109)으로 구성된다.At this time, as a technology proposed for smooth discharge as the Republic of Korea Utility Model Publication No. 20-0125144 "take out device of the injection molding machine", referring to Figure 6a and 6b, the molded product formed by opening the mold frame 108 ( A driving unit for providing a driving force to be separated from the 110, and the upper and lower separation unit for separating the molded product 110 to be separated from the mold frame 108 by rotating the drive at the same time as the drive unit is operated, and the upper and lower separation unit And the vent hole 109 formed in the mold frame 108 so that air flows when the molded product 110 is separated.

여기서 상기 상·하 분리부는 슬라이드면(102')에 접촉되어서 상·하 동작을 하므로써 성형제품(110)을 이탈시키는 취출공이(103)와, 상기 취출공이(103)가 회동되도록 캐비티 코어(107)에 고정형성된 고정핀(104)과, 상기 취출공이(103)가 회동된 상태에서 원상태로 복귀하도록 탄성력을 주는 탄성부재(105)로 이루어지고, 실린더(101)의 구동에 의해 직선 운동을 하는 슬라이드 코어(102)로부터 회동하는 취출공이(103)가 성형된 성형제품(110)의 일단을 밀어주게 됨으로써 성형제품(110)의 원활한 이탈을 보상하게 된다.Here, the upper and lower separating parts contact the slide surface 102 ′ and move the ejection hole 103 to leave the molded product 110 by moving up and down, and the cavity core 107 to rotate the ejection hole 103. It is made of a fixed pin 104 is fixed to the) and the elastic member 105 to give an elastic force to return to the original state in the ejection hole 103 is rotated, the linear motion by the drive of the cylinder 101 The ejection hole 103 that rotates from the slide core 102 pushes one end of the molded product 110 to compensate for the smooth separation of the molded product 110.

그러나 상기 등록실용신안은 성형된 성형제품(110)의 일단에 취출공이(103)가 접촉되면서 물리력에 의해 밀어주게 된다. 이때, 접촉될 때와 밀어줄 때의 물리력의 강도에 따라 성형제품(110)의 손상을 가할 수 있는 문제점을 갖고 있다.However, the registration utility model is pushed by the physical force while the blow hole 103 is in contact with one end of the molded molded product 110. At this time, there is a problem that can damage the molded product 110 according to the strength of the physical force when the contact and push.

따라서 직접적으로 성형제품에 접촉되는 것이 아니라, 간접적으로 성형제품의 원활한 배출을 위한 기술이 도입되어야 한다.Therefore, technology for smooth discharge of the molded product should be introduced, not directly contacting the molded product.

본 발명은 성형된 사출물품을 코어로부터 공기압입을 통해 원활히 배출시킬 수 있는 언더컷이 없는 사출물품을 위한 금형조립체를 제공하는 것을 목적으로 한다.An object of the present invention is to provide a mold assembly for an undercut-free injection article that can be ejected smoothly through the pneumatic injection from the core.

또 본 발명은 용융 수지 주입구를 통해 수지 주입시 캐비티에 잔존하는 공기를 배출시킬 수 있도록 금형본체와 스트리퍼플레이트의 접면, 그리고 금형본체의 제1본체와 제2본체의 접면에 각각 제1,2공기배출로가 형성된 금형조립체를 제공하는 것을 목적으로 한다.In addition, the present invention is the first and second air on the contact surface of the mold body and the stripper plate, and the contact surface of the first body and the second body of the mold body to discharge the air remaining in the cavity when the resin is injected through the molten resin inlet An object of the present invention is to provide a mold assembly in which a discharge path is formed.

상기와 같은 해결 과제를 해결하기 위하여 본 발명에 따른 언더컷이 없는 사출물품을 위한 금형조립체는,In order to solve the above problems the mold assembly for the injection-free injection article according to the present invention,

코어; 상기 코어와 결합되어 캐비티를 형성하는 금형본체; 및 상기 코어와 상기 금형본체 사이에 배열되며, 언더컷이 없는 사출물품의 원활한 배출(ejecting)을 위한 공기압입로가 형성된 스트리퍼플레이트(stripper plate)를 포함하여 이루어진다.core; A mold body coupled to the core to form a cavity; And a stripper plate arranged between the core and the mold main body and having a pneumatic inlet path for smooth ejection of an injection-free injection article.

캐비티에 용융 수지의 원활한 주입을 위하여 잔존하는 공기가 배출되도록, 상기 금형본체와 상기 스트리퍼플레이트의 접면에는 제1공기배출로가 형성되어 있는 것을 특징으로 한다.A first air discharge path is formed on a contact surface of the mold body and the stripper plate so that the remaining air is discharged for smooth injection of the molten resin into the cavity.

상기 금형본체는 상기 스트리퍼플레이트와 접하는 제1본체와, 상기 제1본체와 접하고 용융 수지 주입구가 형성된 제2본체로 이루어지는 것을 특징으로 한다.The mold body is characterized by comprising a first body in contact with the stripper plate, and a second body in contact with the first body and formed with a molten resin inlet.

마지막으로, 제1공기배출로와 동일한 기능을 발휘하는 것으로, 상기 제1본체와 제2본체의 접면에는 제2공기배출로가 더 형성되어 있는 것을 특징으로 한다.Finally, the same function as that of the first air exhaust passage, and a second air exhaust passage is further formed on the contact surface of the first body and the second body.

본 발명에 따른 언더컷이 없는 사출물품을 위한 금형조립체는, 압축공기를 공기압입로로 주입하여 성형된 사출물품에 토출시켜, 코어로부터 원활하게 분리 배출시킬 수 있으며,The mold assembly for the undercut-free injection article according to the present invention, by injecting compressed air into the pneumatic inlet path and discharged to the molded injection molded article, it can be smoothly discharged from the core

압축공기를 이용함으로써, 배출장치가 직접적으로 접촉되어 밀어내는 방식이 아니므로 사출물품의 손상이나 파손 등의 우려를 발생시키지 않는 효과가 있고,By using compressed air, since the discharge device is not directly contacted and pushed out, there is an effect of not causing a risk of damage or damage to the injected article.

공기배출로가 더 형성되어 있어 캐비티로 용융 수지 주입시에 잔존하는 공기를 제거할 수 있어 더욱더 안정된 사출물품을 생산할 수 있는 효과가 있다.Since the air discharge path is further formed, the air remaining during the injection of the molten resin into the cavity can be removed, thereby producing an even more stable injection molded product.

이하 첨부된 도면을 참고하여 본 발명을 상세히 설명하도록 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 금형조립체를 나타낸 단면도이고, 도 2는 본 발명에 따른 금형조립체의 스트리퍼플레이트와 제1본체 간의 결합을 나타낸 요부확대 단면도이며, 도 3은 본 발명에 따른 금형조립체의 제1본체와 제2본체 간의 결합을 나타낸 요부확대 단면도이고, 도 4a 및 도 4b는 본 발명에 따른 금형조립체에 의해 사 출물품이 성형 및 배출되는 것을 나타낸 도면이며, 도 5는 본 발명에 따른 금형조립체에 의한 제조 공정을 나타낸 흐름도이다.1 is a cross-sectional view showing a mold assembly according to the present invention, Figure 2 is an enlarged cross-sectional view showing the main portion showing the coupling between the stripper plate and the first body of the mold assembly according to the invention, Figure 3 is a first view of the mold assembly according to the invention 1 is an enlarged cross-sectional view showing main parts of the main body and the second body, Figures 4a and 4b is a view showing that the molded article is ejected and discharged by the mold assembly according to the present invention, Figure 5 is a mold according to the present invention It is a flowchart which shows the manufacturing process by an assembly.

도 1 내지 도 3에 도시된 바와 같이, 본 발명에 따른 언더컷이 없는 사출물품을 위한 금형조립체는,As shown in Figures 1 to 3, the mold assembly for the undercut-free injection article according to the present invention,

크게 코어(10), 금형본체(20), 스트리퍼플레이트(30)로 나누어진다.The core 10 is largely divided into a mold body 20 and a stripper plate 30.

1) 코어(10)1) core (10)

코어핀(11)과, 상기 코어핀(11)을 홀딩하는 코어홀더(12)로 이루어진다.The core pin 11 and the core holder 12 holding the core pin 11.

2) 2) 금형본체Mold body (20)20

상기 코어(10)의 코어핀(11)과 결합되어 캐비티(C)를 형성하는 것으로, 하기에 설명될 스트리퍼플레이트(30)와 접하는 제1본체(21)와, 상기 제1본체(21)와 접하고 상기 캐비티(C)로 용융 수지를 주입하기 위한 용융 수지 주입구(22a)가 형성된 제2본체(22)로 이루어진다.Combining with the core pin 11 of the core 10 to form a cavity (C), the first body 21 in contact with the stripper plate 30 to be described below, and the first body 21 and The second body 22 is formed in contact with the molten resin inlet 22a for injecting molten resin into the cavity C.

이때, 상기 제1본체(21)와 스트리퍼플레이트(30)의 접면에는 제1공기배출로(A1)가 형성되고, 상기 제1본체(21)와 제2본체(22)의 접면에는 제2공기배출로(A2)가 형성된다. 즉, 상기 제1,2공기배출로(A1, A2)는 캐비티(C)와 연통되어 상기 캐비티(C)에 잔존하는 공기가 상기 수지 주입구(22a)로 주입되는 용융 수지에 의해 배출될 수 있도록 하는 것이다. 그리고, 상기 제1,2공기배출로(A1, A2)는 캐비티(C)를 중심으로 방사형으로 형성되고, 사출물품(T)의 형태와 크기에 따라 더 적거나 더 많게 구성시킬 수 있는 것이다.In this case, a first air discharge path A1 is formed at the contact surface of the first body 21 and the stripper plate 30, and the second air is formed at the contact surface of the first body 21 and the second body 22. A discharge path A2 is formed. That is, the first and second air discharge passages A1 and A2 communicate with the cavity C so that the air remaining in the cavity C can be discharged by the molten resin injected into the resin inlet 22a. It is. The first and second air discharge passages A1 and A2 are radially formed around the cavity C, and may be configured with fewer or more depending on the shape and size of the injection article T.

여기서, 상기 제1,2공기배출로(A1, A2)는 공기의 입자가 유통될 수 있는 0.01mm 이하의 크기로 형성됨으로써, 용융 수지 입자가 유통될 수 없도록 한다.Here, the first and second air discharge passage (A1, A2) is formed to a size of 0.01mm or less that can be passed through the air particles, thereby preventing the molten resin particles can flow.

3) 스트리퍼플레이트(stripper plate : 30)3) stripper plate (30)

상기 코어(10)로부터 성형된 사출물품(T)을 배출시키기 위한 것으로, 상기 코어(10)와 상기 금형본체(20)의 제1본체(21) 사이에 배열되며, 언더컷이 없는 사출물품(T)의 원활한 배출(ejecting)을 위한 공기압입로(31)가 형성되어 이루어진다. 즉, 공기압축장치로부터 압축공기를 상기 공기압입로(31)로 주입하여 사출물품(T)에 토출시킴으로써 상기 코어(10)로부터 분리시키게 된다.For discharging the injection molded article (T) from the core 10, is arranged between the core 10 and the first body 21 of the mold main body 20, the injection article without an undercut (T) Air inlet 31 is formed for smooth ejection (ejecting) of. That is, the compressed air is injected from the air compression device into the air inlet 31 and discharged to the injection-molded article T to separate from the core 10.

한편, 상기 금형본체(20)의 제1,2본체(21, 22)와 상기 스트리퍼플레이트(30)를 각기 분리시키기 위한 구동부(미도시)가 구비되며, 상기 금형본체(20)의 제1,2본체(21, 22)의 외측면으로 냉각수가 흐르도록 냉각수공급장치(미도시)가 구비된다.Meanwhile, a driving unit (not shown) for separating the first and second bodies 21 and 22 of the mold body 20 from the stripper plate 30 is provided, and the first and second bodies of the mold body 20 are provided. A cooling water supply device (not shown) is provided so that the cooling water flows to the outer surfaces of the two bodies 21 and 22.

그리고, 상기 사출물품(T)은 생화학검사, 혈청검사시에 여러 가지의 채혈관으로 사용되고, 각종 실험에 이용되는 시험관 등으로 사용되고 있다.In addition, the injection article T is used as various blood collection tubes during biochemical tests and serum tests, and is used as test tubes used for various experiments.

상기와 같은 구성으로, 본 발명인 언더컷이 없는 사출물품을 위한 금형조립 체에 대해 작용 상태를 살펴보면 다음과 같다.With the configuration as described above, look at the action state for the mold assembly for the present invention without the undercut as follows.

도 4 내지 도 5를 참조하면,4 to 5,

a) 코어(10)와 스트리퍼플레이트(30)와 금형본체(20)의 제1,2본체(21, 22)를 순서대로 일렬 배열하여 결합한다.[S10]a) The core 10, the stripper plate 30, and the first and second bodies 21 and 22 of the mold body 20 are arranged in a row in order. [S10]

b) 제2본체(22)의 용융 수지 주입구(22a)로 용융 수지를 주입한다.[S20]b) Molten resin is injected into the molten resin inlet 22a of the second body 22. [S20]

b-1) 캐비티(C)에 잔존하는 공기는 용융 수지의 주입으로 인해 제1,2공기배출로(A1, A2)를 통해 외부로 배출된다.[S21]b-1) Air remaining in the cavity C is discharged to the outside through the first and second air discharge paths A1 and A2 due to the injection of molten resin. [S21]

b-2) 캐비티(C)에 용융 수지가 충진된다.[S22]b-2) The molten resin is filled in the cavity C. [S22]

b-3) 금형본체(20)의 제1,2본체(21, 22)의 외주면에 냉각수공급장치로부터 공급된 냉각수가 흐르게 되며, 이로 인해 사출물품(T)이 냉각된다.[S23]b-3) The cooling water supplied from the cooling water supply device flows to the outer circumferential surfaces of the first and second bodies 21 and 22 of the mold body 20, thereby cooling the injection molded article T. [S23]

c) 성형이 완료되면, 구동부에 의해 각 구성요소를 분리시킨다.[S30]c) When molding is completed, each component is separated by a driving unit. [S30]

c-1) 제1본체(21)로부터 제2본체(22)를 분리시킨다.[S31]c-1) The second body 22 is separated from the first body 21. [S31]

c-2) 스트리퍼플레이트(30)로부터 제1본체(21)를 분리시킨다.[S32]c-2) The first body 21 is separated from the stripper plate 30. [S32]

c-3) 공기압축장치로부터 공급된 압축 공기를 스트리퍼플레이트(30)의 공기압입로(31)로 주입하여 코어(10)의 코어핀(11)에 성형된 사출물품(T)의 선단에 토출시켜 배출시킨다.[S33]c-3) The compressed air supplied from the air compressor is injected into the air inlet path 31 of the stripper plate 30 and discharged to the tip of the injection molded article T formed on the core pin 11 of the core 10. To discharge it. [S33]

c-4) 코어(10)로부터 스트리퍼플레이트(30)를 분리시킨다.[S34]c-4) The stripper plate 30 is separated from the core 10. [S34]

한편, 제1본체(21), 제2본체(22) 및 스트리퍼플레이트(30) 간의 분리시에는 제1,2공기배출로(A1, A2)를 통해 공기가 유입됨으로써 원활한 분리가 이루어지게 된다.Meanwhile, when the first body 21, the second body 22, and the stripper plate 30 are separated, air is introduced through the first and second air discharge paths A1 and A2 to smoothly separate the air.

d) 성형된 사출물품(T)의 배출이 완료되면, 다시 구동부에 의해 상기 각 구성요소를 일렬 배열하여 결합한다. 즉, 상기 a)~c) 단계를 반복하게 된다.d) When the discharge of the molded injection molded article (T) is completed, the respective components are arranged in series by the driving unit again to be combined. That is, steps a) to c) are repeated.

이상에서 본 발명을 설명함에 있어 첨부된 도면을 참조하여 특정 형상과 구조를 갖는 "언더컷이 없는 사출물품을 위한 금형조립체"을 위주로 설명하였으나 본 발명은 당업자에 의하여 다양한 변형 및 변경이 가능하고, 이러한 변형 및 변경은 본 발명의 보호범위에 속하는 것으로 해석되어야 한다.In the above description of the present invention with reference to the accompanying drawings, a mold assembly for an injection-free article without a specific shape and structure has been described mainly, but the present invention can be variously modified and changed by those skilled in the art, such Modifications and variations are to be construed as falling within the protection scope of the present invention.

도 1은 본 발명에 따른 금형조립체를 나타낸 단면도,1 is a cross-sectional view showing a mold assembly according to the present invention,

도 2는 본 발명에 따른 금형조립체의 스트리퍼플레이트와 제1본체 간의 결합을 나타낸 요부확대 단면도,Figure 2 is an enlarged cross-sectional view showing the main portion showing the coupling between the stripper plate and the first body of the mold assembly according to the invention,

도 3은 본 발명에 따른 금형조립체의 제1본체와 제2본체 간의 결합을 나타낸 요부확대 단면도,Figure 3 is an enlarged cross-sectional view showing the main portion showing the coupling between the first body and the second body of the mold assembly according to the invention,

도 4a 및 도 4b는 본 발명에 따른 금형조립체에 의해 사출물품이 성형 및 배출되는 것을 나타낸 도면,Figures 4a and 4b is a view showing that the injection molding and ejecting the article by the mold assembly according to the invention,

도 5는 본 발명에 따른 금형조립체에 의한 제조 공정을 나타낸 흐름도,5 is a flow chart showing a manufacturing process by a mold assembly according to the present invention;

도 6a 및 도 6b는 종래 사출 성형기의 취출장치를 나타낸 도면.6a and 6b are views showing a take-out device of a conventional injection molding machine.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 코어10: core

11 : 코어핀 12 : 코어홀더11 core pin 12 core holder

20 : 금형본체20: mold body

21 : 제1본체 22 : 제2본체21: first body 22: second body

22a : 용융 수지 주입구22a: molten resin inlet

30 : 스트리퍼플레이트30: stripper plate

31 : 공기압입로31: pneumatic inlet

A1, A2 : 제1,2공기배출로A1, A2: first and second air exhaust passage

C : 캐비티C: Cavity

T : 사출물품T: Injection product

Claims (4)

코어;core; 상기 코어와 결합되어 캐비티를 형성하는 제1 및 제2 본체로 이루어지되, 상기 제2본체는 상기 제1본체와 접하고 용융 수지 주입구가 형성되어 이루어진 금형본체;A mold body formed of a first body and a second body coupled to the core to form a cavity, wherein the second body is in contact with the first body and a molten resin inlet is formed; 상기 코어와 상기 금형본체의 제1본체 사이에 배열되며, 언더컷이 없는 사출물품의 선단(先端)에 공기를 토출시켜 원활한 배출(ejecting)을 위한 공기압입로가 형성된 스트리퍼플레이트(stripper plate);A stripper plate arranged between the core and the first body of the mold main body, the stripper plate having an air pressurizing path for ejecting air by discharging air to the front end of the injection-free article; 상기 금형본체의 제1본체와 상기 스트리퍼플레이트의 접면에 형성되는 제1공기배출로; 및A first air exhaust passage formed at a contact surface of the first body of the mold body and the stripper plate; And 상기 금형본체의 제1본체와 제2본체의 접면에 형성되는 제2공기배출로;A second air exhaust passage formed at a contact surface of the first body and the second body of the mold body; 를 포함하여 이루어진 언더컷이 없는 사출물품을 위한 금형조립체.Mold assembly for the injection-free undercut made, including. 삭제delete 삭제delete 삭제delete
KR1020070101344A 2007-10-09 2007-10-09 Injection mold assembly for undercutless article KR100882291B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102458793A (en) * 2009-06-05 2012-05-16 甲信工业株式会社 Method for producing molded article and molding device
KR101727898B1 (en) * 2016-09-01 2017-04-18 (주)씨엠씨 Mold for molding silicon cartridge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02281918A (en) * 1989-04-25 1990-11-19 Konica Corp Method and mold for molding cylindrical body
KR940007321Y1 (en) * 1988-11-30 1994-10-19 삼성전기 주식회사 Ejecting device for injection molding articles
KR950022959U (en) * 1994-01-31 1995-08-21 Injection Mold of Porous Products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940007321Y1 (en) * 1988-11-30 1994-10-19 삼성전기 주식회사 Ejecting device for injection molding articles
JPH02281918A (en) * 1989-04-25 1990-11-19 Konica Corp Method and mold for molding cylindrical body
KR950022959U (en) * 1994-01-31 1995-08-21 Injection Mold of Porous Products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102458793A (en) * 2009-06-05 2012-05-16 甲信工业株式会社 Method for producing molded article and molding device
KR101727898B1 (en) * 2016-09-01 2017-04-18 (주)씨엠씨 Mold for molding silicon cartridge

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