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KR20090094937A - Insert injection molding apparatus of slope part in injection mold - Google Patents

Insert injection molding apparatus of slope part in injection mold Download PDF

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Publication number
KR20090094937A
KR20090094937A KR1020080019951A KR20080019951A KR20090094937A KR 20090094937 A KR20090094937 A KR 20090094937A KR 1020080019951 A KR1020080019951 A KR 1020080019951A KR 20080019951 A KR20080019951 A KR 20080019951A KR 20090094937 A KR20090094937 A KR 20090094937A
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insert
mold
plate
injection
molding
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KR100959627B1 (en
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김현수
김상수
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김현수
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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
    • B29C45/44Removing 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
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065Positioning or centering articles in the mould

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

Abstract

본 발명은 사출금형에서 경사진 부분의 인서트 사출장치에 관한 것으로, 보다 상세하게는 경사방향 그대로 고정봉을 위치시켜 인서트를 고정되게 한 후, 인서트와 성형물을 일체로 형성되고 하고, 그 후 금형이 벌어질 때 인서트를 고정한 고정봉이 경사방향의 직교방향으로 후퇴하면서 빠지도록 하여 사출금형에서 성형물의 구조에 상관없이 경사진 부분에도 인서트의 사출이 가능토록 한 인서트 사출장치를 제공한다.The present invention relates to an insert injection device of the inclined portion of the injection mold, and more particularly, after the fixing rod is positioned in the inclined direction to fix the insert, the insert and the molding are integrally formed, and then the mold is When the opening is fixed, the fixing rod holding the insert is retracted in the orthogonal direction of the inclined direction so as to be pulled out, thereby providing an insert injection device that enables the injection of the insert even on the inclined portion regardless of the structure of the molding in the injection mold.

Description

사출금형에서 경사진 부분의 인서트 사출장치{INSERT INJECTION MOLDING APPARATUS OF SLOPE PART IN INJECTION MOLD}Insert injection device of inclined part of injection mold {INSERT INJECTION MOLDING APPARATUS OF SLOPE PART IN INJECTION MOLD}

본 발명은 사출금형에서 경사진 부분의 인서트 사출장치에 관한 것이다.The present invention relates to an insert injection device of the inclined portion in the injection mold.

일반적으로 사출금형이라 함은 제품의 외형을 형성하기 위해 마주보는 한 쌍의 상/하판 금형(A)(A') 표면에 성형홈(A2)을 형성하고, 상기 성형홈으로 용융상태의 수지 주입물를 공급하기 위한 상판 금형의 주입구(A1)와, 주입된 응고물이 성형홈 내에서 굳게 되면 성형물을 취출하기 위한 하판 금형 저부에 밀핀(A3)을 구성한 것이 대부분이다.In general, the injection mold is formed in the molding groove (A2) on the surface of the pair of upper and lower molds (A) (A ') facing each other to form the appearance of the product, and injected into the molding groove in the molten resin In most cases, when the injection hole A1 of the upper die for supplying water and the injected coagulated material are solidified in the molding groove, the mill pin A3 is formed at the bottom of the lower die for discharging the molded product.

따라서, 이러한 사출금형의 작동수단은 금형틀에 고정되어 있는 상판금형에 하판금형이 승강하면서 상/하판 금형이 밀착시킨 상태를 유지한 채 상판금형의 주입구에서 주입물을 성형홈 내에 주입하고, 여기서 일정시간이 흘러 굳어진 성형홈 내에 수지 주입물이 굳어지면 다시 하판금형이 하강하여 상/하판 금형이 다시 벌어지면서 밀핀에 의해 성형물을 취출하게 된다.Therefore, the operation means of the injection mold is injected into the molding groove in the injection groove of the upper plate mold while maintaining the state in which the upper / lower mold is in close contact with the lower plate mold is elevated to the upper mold fixed to the mold frame, When the resin injection is hardened in the molded groove that has passed a certain time, the lower plate mold is lowered again, and the upper / lower mold is opened again, and the molded product is taken out by the mill pin.

한편, 이러한 수지 성형물에 체결을 위한 나사부를 형성하게 되면, 재질의 특성상 무르기 때문에 나사부가 쉽게 마모되는 단점이 있어 통상적으로 금속체의 나사관을 매립하여 성형물과 일체로 성형하는 것이 대부분이다.On the other hand, when the screw portion for fastening to the resin molding is formed, there is a disadvantage in that the screw portion is easily worn because it is soft in the characteristics of the material, it is usually formed by embedding the screw tube of the metal body and molded integrally with the molding.

그러나, 이러한 나사관과 같은 인서트를 박을 자리가 금형과 직교방향을 이루고 있을 때에는 인서트의 취출이 용이하여 매립이 가능하지만, 인서트물를 박을 자리가 경사진 부분이라면 금형이 벌어질때 이 경사부분에 인서트을 고정하는 봉이 성형물을 걸려 파손되기 때문에 인서트를 일체로 성형할 수 없는 문제점이 있었다.However, when the place to insert such a screw tube is orthogonal to the mold, the insert can be easily taken out and buried. However, if the place to insert the insert is inclined, the inclined portion of the insert is opened to the inclined portion. There is a problem in that the insert cannot be molded integrally because the rod fixing the insert is damaged by the molding.

따라서, 종래의 기술로는 사출금형에서 경사진부분은 인서트를 성형할 수 없었고, 이를 피하여 인서트를 박을 자리를 수평으로 유지되게 하고 나머지 성형물을 경사지게 위치시켜 성형하였으나, 이 또한 성형물과 인서트부분이 예각을 이루고 있을 때에는 취출이 매우 곤란하여 복잡하여 사출금형에 복잡한 경사장치를 구성하여야 하는 문제점이 있었다.Therefore, in the prior art, the inclined portion of the injection mold could not be molded, and the insert was kept horizontally and the rest of the molding was inclined, but the molded part and the insert part were formed. When forming an acute angle, taking out was very difficult and complicated, and there was a problem in that a complicated inclination device was formed in the injection mold.

이에 본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 개발된 것으로써, 특히 사출금형에서 성형물의 구조에 상관없이 경사진 부분에도 인서트의 사출이 가능토록 하여, 종래와 같이 경사진 부분에 인서트를 사출하기 위해 채택되는 복잡한 사출금형의 구조 및 장치들을 배제하여도 되게 한 것이다.Therefore, the present invention was developed to solve the above-mentioned conventional problems, and in particular, it is possible to insert the insert in the inclined portion irrespective of the structure of the molding in the injection mold, so that the insert is inclined as in the prior art. It is also possible to exclude the structure and devices of complex injection molds employed for injection.

상기 목적을 달성하기 위해 본 발명은, 제품의 외형을 형성하기 위해 마주보는 한 쌍의 상/하판 금형(A)(A') 표면에 성형홈(A2)이 형성되고, 상기 성형홈으로 용융상태의 수지 주입물를 공급하기 위한 상판금형(A')의 주입구(A1)와, 주입된 응고물이 성형홈 내에서 굳게 되면 성형물을 취출하기 위한 하판금형(A) 저부에 밀핀(A3)이 구성된 통상적인 사출금형에 있어서, In order to achieve the above object, the present invention, forming grooves (A2) is formed on the surface of the pair of upper and lower molds (A) (A ') facing each other to form the appearance of the product, the molten state into the molding grooves The inlet A1 of the upper plate mold A 'for supplying the resin injection of the resin, and the mill pin A3 is formed at the bottom of the lower plate mold A for ejecting the molded product when the injected coagulation solidifies in the molding groove. In the phosphorus injection mold,

상기 하판금형(A) 성형홈(A2)의 너트와 같은 인서트(C)를 매립할 경사부분에 별도의 승강판(1)을 구성시켜 밀핀(A3)과 함께 승강되도록 함과, 하판금형(A)의 저부에서 체결구(4)로 승강판(1)을 고정하여 승강판(1)을 승강거리을 제한되도록 하고, The lower plate mold (A) by forming a separate lifting plate (1) in the inclined portion to embed the insert (C), such as the nut of the forming groove (A2) to be raised and lowered together with the pin (A3), lower plate mold (A) Fix the lifting plate 1 with the fastener 4 at the bottom of the) to limit the lifting distance of the lifting plate 1,

상기 승강판(1)의 인서트(B)를 고정하는 직교방향으로 고정봉(2)을 위치함과, 이 고정봉(2)의 하단에는 고정봉의 경사면과 직교방향으로 슬라이드면(21)을 형성하여, 하판금형(A) 저부에서 고정된 고정판(3) 상단의 슬라이드면(31)을 따라 이송되도록 삽착하여서, Positioning the fixing rod (2) in the orthogonal direction for fixing the insert (B) of the elevating plate (1), the lower end of the fixing rod (2) forms a slide surface (21) in the orthogonal direction and the inclined surface of the fixing rod (2) By inserting so as to be transported along the slide surface 31 of the upper end of the fixed plate 3 fixed at the bottom of the lower plate mold (A),

완성된 성형물(B)의 취출시 밀핀(A4)에 의해 승강판(1)이 승강하면 인서트(C)를 고정한 고정봉(1)이 슬라이드면(21)(31)을 따라 이송하면서 인서트(C)와 직교방향으로 빠지게 함으로써 취출가능토록 한 것이다.When the lifting plate 1 is lifted by the mil pin A4 at the time of taking out the finished molding B, the fixing rod 1 fixing the insert C is moved along the slide surfaces 21 and 31, and the insert C ) So that they can be taken out orthogonally.

이와 같이 된 본 발명은 인서트를 매립할 경사진 부분 그대로 고정봉을 위치 시켜 인서트를 고정되도록 하여 수지 주입물과 인서트를 일체로 성형하되, 완성된 성형물의 취출시 성형물이 승강판과 함께 승강하면서 고정봉은 슬라이드면을 따라 이송하면서 후퇴되도록 한 것으로, 쉽고 간단한 방법으로 사출금형에서 성형물의 구조에 상관없이 경사진 부분에도 인서트의 사출이 가능토록 한 효과가 있다.In the present invention as described above, by inserting the fixed rod as the inclined portion to embed the insert to be fixed to the insert to insert the resin injection and the insert integrally, when the molded product is taken out while lifting the molding together with the lifting plate fixed The rod is to be retracted while being transported along the slide surface, and in an easy and simple way, the insert can be injected even on the inclined portion regardless of the structure of the molding.

이하 본 발명을 첨부된 도면에 의거하여 보다 바람직하게 설명하면 다음과 같다.Hereinafter, the present invention will be described more preferably with reference to the accompanying drawings.

첨부된 도면 도1 내지 도3과 같이, 본 발명을 선루프프레임 제작용 사출금형에 직접 실시한 것으로, 하판금형(A)의 인서트(C)를 매립할 경사부분에 승강판(1) 장착공간(1a)을 마련하고, 이 장착공간(1a) 안에 승강판(1)을 삽입하되 승강판(1) 저부에는 밀핀(A3)이 위치되게 함과, 하판금형(A)의 저부에서 승강판(1)을 일정거리 만큼만 승강을 제한하도록 체결구(4)로 고정하며, 1 to 3, the present invention is carried out directly to the injection mold for manufacturing the sunroof frame, and the lifting plate 1 mounting space (1) on the inclined portion to embed the insert (C) of the lower plate mold (A) 1a), the lifting plate 1 is inserted into the mounting space 1a, but the pins A3 are positioned at the bottom of the lifting plate 1, and the lifting plate 1 at the bottom of the lower plate mold A is provided. ) Is fastened by fasteners (4) to limit lifting by only a certain distance,

또한, 상기 승강판에는 인서트(B)가 고정되는 직교방향으로 고정봉(2)을 삽입홈(2a)을 구성하여 고정봉(2)을 위치되게 하고, 이 고정봉(2)의 하단 즉, 장착공간(1a)의 저부에 고정판(3) 장착공간(3a)을 마련하여 하판금형(A) 저부에서 고정판(3)을 체결구(32)로 고정하며, In addition, the lifting plate is formed in the orthogonal direction in which the insert (B) is fixed to form the insertion groove (2a) to position the fixed rod (2), that is, the lower end of the fixed rod (2), The fixing plate 3 is provided at the bottom of the mounting space 1a and the mounting space 3a is fixed to fix the fixing plate 3 to the bottom of the lower plate mold A with the fastener 32.

또한, 상기 고정봉(2)의 하부와, 고정판(3) 상단에는 돌기와 홈으로 되는 슬라이드면(21)(31)을 형성하여 서로 삽착하여서 이송가능케 한다.In addition, the lower surface of the fixing rod (2) and the upper end of the fixing plate (3) to form a slide surface (21, 31), which is a projection and a groove to be inserted into each other to be transported.

따라서, 첨부도면 도3의 (가)와 같이, 최초 하판금형(A)의 고정봉(2) 상단에 너트와 같은 인서트(C)를 꽂은 후, (나)와 같이 상/하판 금형(A)(A')이 닫혀지면서 주입구(A1)로 수지 주입물을 성형홈(A2)에 공급한 다음, (다)와 같이 성형물(B)과 인서트(C)가 일체로 굳게 되면 하판금형(1)이 하강하여 밀핀(A3)이 돌출되면서 성형물(B)과 승강판(1)을 동시에 승강시키게 된다.Therefore, as shown in (a) of FIG. 3, the insert (C), such as a nut, is inserted into the upper end of the fixing rod (2) of the first lower plate mold (A), and then the upper and lower plate molds (A) as shown in (b). When (A ') is closed and the resin injection is supplied to the molding groove (A2) through the injection hole (A1), and then the molding (B) and the insert (C) is solidified integrally as shown in (C) the lower plate mold (1) The lowering and the pin (A3) is projected to raise and lower the molding (B) and the lifting plate (1) at the same time.

이때, 승강판(1)의 고정봉(2)은 고정판(3)의 슬라이드면(21)(31)을 따라 이송하면서 인서트(C)의 직교방향으로 후퇴되어 성형물(B)에서 완전히 빠지게 되고, 여기서 (라)와 같이 승강판(1)은 승강거리을 제한되도록 하는 체결구(4)에 의해 멈춰지며, 성형물(B)은 다른 밀핀(A3)에 의해 취출되어 진다.At this time, the fixing rod (2) of the elevating plate (1) is retracted in the orthogonal direction of the insert (C) while being transported along the slide surfaces (21) (31) of the fixing plate (3), completely removed from the molding (B), Here, as shown in (d), the elevating plate 1 is stopped by the fastener 4 to limit the elevating distance, and the molded article B is taken out by the other mill pin A3.

한편, 상기에서 승강거리를 제한하는 체결구(4)는 승강판(1) 및 고정봉(2)이 탈거되거나, 형성된 고정봉(2)이 고정판(3)의 슬라이드면(31) 이상으로 벗어나지 않게 하기 위함이다.On the other hand, the fastener 4 for limiting the lifting distance in the lifting plate (1) and the fixed rod (2) is removed, or the fixed rod (2) formed is not off beyond the slide surface 31 of the fixed plate (3) To avoid it.

상기에서 서술한 바와 같이, 본 발명은 경사진 부분에 인서트를 고정하여 성형물과 일체로 형성되게 한 후, 이를 취출할 때 인서트의 직교 경사면을 따라 고정봉이 빠지도록, 승강판 그리고 고정봉과 고정판의 슬라이드면, 승강거리를 제한 하는 체결구에 의해 작동되도록 한 것이 요지이며, 상기 부품의 형상 및 구조 등은 사용자의 용도에 따라 쉽게 변경하여 사용할 수 있을 것이다.As described above, the present invention is fixed to the insert to the inclined portion to be formed integrally with the molding, and then take out the lifting rod along the orthogonal inclined surface of the insert when taking it out, the lifting plate and the slide of the fixed rod and the fixed plate The point is to be operated by the fasteners limiting the surface, the lifting distance, the shape and structure of the parts, etc. may be easily changed according to the user's use.

도 1은 본 발명의 단면 예시도 1 is a cross-sectional view of the present invention

도 2는 본 발명의 요부 분해 사시도 Figure 2 is an exploded perspective view of the main part of the present invention

도 3a,3b,3c,3d는 본 발명의 작동 예시도 이다.3A, 3B, 3C, and 3D are exemplary views of the operation of the present invention.

* 도면의 주요부분에 대한 부호설명 ** Explanation of Signs of Major Parts of Drawings *

A: 하판금형 A': 상판금형A: Lower plate mold A ': Upper plate mold

A1: 주입구 A2: 성형홈A1: injection hole A2: molding groove

A3: 밀핀 B: 성형물A3: Milpin B: Molded product

C: 인서트C: Insert

1: 승강판 2: 고정봉1: lifting plate 2: fixed rod

3: 고정판 4: 체결구3: fixing plate 4: fastener

Claims (1)

제품의 외형을 형성하기 위해 마주보는 한 쌍의 상/하판 금형(A)(A') 표면에 성형홈(A2)이 형성되고, 상기 성형홈으로 용융상태의 수지 주입물를 공급하기 위한 상판금형(A')의 주입구(A1)와, 주입된 응고물이 성형홈 내에서 굳게 되면 성형물을 취출하기 위한 하판금형(A) 저부에 밀핀(A3)이 구성된 통상적인 사출금형에 있어서, Forming grooves A2 are formed on a pair of upper and lower plate molds A and A 'facing each other to form an outer shape of the product, and an upper plate mold for supplying a molten resin injection into the forming grooves. In the conventional injection mold in which the inlet A1 of A ') and the bottom pin A are formed at the bottom of the lower plate mold A for taking out the molded product when the injected solidified material solidifies in the molding groove, 상기 하판금형(A) 성형홈(A2)의 너트와 같은 인서트(C)를 매립할 경사부분에 별도의 승강판(1)을 구성시켜 밀핀(A3)과 함께 승강되도록 함과, 하판금형(A)의 저부에서 체결구(1a)로 승강판(1)을 고정하여 승강판(1)을 승강거리을 제한되도록 하고, The lower plate mold (A) by forming a separate lifting plate (1) in the inclined portion to embed the insert (C), such as the nut of the forming groove (A2) to be raised and lowered together with the pin (A3), lower plate mold (A) At the bottom of the) to secure the elevating plate (1) with the fastener (1a) to limit the elevating distance of the elevating plate (1), 상기 승강판(1)의 인서트(B)를 고정하는 직교방향으로 고정봉(2)을 위치함과, 이 고정봉(2)의 하단에는 고정봉의 경사면과 직교방향으로 슬라이드면(21)을 형성하여, 하판금형(A) 저부에서 고정된 고정판(3) 상단의 슬라이드면(31)을 따라 이송되도록 삽착하여서, Positioning the fixing rod (2) in the orthogonal direction for fixing the insert (B) of the elevating plate (1), the lower end of the fixing rod (2) forms a slide surface (21) in the orthogonal direction and the inclined surface of the fixing rod (2) By inserting so as to be transported along the slide surface 31 of the upper end of the fixed plate 3 fixed at the bottom of the lower plate mold (A), 완성된 성형물(B)의 취출시 밀핀(A4)에 의해 승강판(1)이 승강하면 인서트(C)를 고정한 고정봉(1)이 슬라이드면(21)(31)을 따라 이송하면서 인서트(C)와 직교방향으로 빠지게 함으로써 취출가능토록 한 것을 특징으로 하는 사출금형에서 경사진부분의 인서트 사출장치.When the lifting plate 1 is lifted by the mil pin A4 at the time of taking out the finished molding B, the fixing rod 1 fixing the insert C is moved along the slide surfaces 21 and 31, and the insert C Insert injection device of the inclined portion in the injection mold, characterized in that to be taken out by orthogonal to).
KR1020080019951A 2008-03-04 2008-03-04 Insert injection device of inclined part of injection mold Expired - Fee Related KR100959627B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101288429B1 (en) * 2012-12-13 2013-07-22 우림기계(주) Device for handling a neutral position of gear in transmision
CN108582686A (en) * 2018-04-24 2018-09-28 中山世达模型制造有限公司 Core-pulling type mould without thimble
KR102189547B1 (en) * 2020-04-27 2020-12-11 이종석 Manufacturing method of diaphragm
KR20220054970A (en) * 2020-10-26 2022-05-03 주식회사 서연이화 Undercut processing device of injection mold

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001287246A (en) 2000-04-06 2001-10-16 Sekisui Chem Co Ltd Injection mold
JP3704118B2 (en) 2002-11-18 2005-10-05 俊影 山田 Sliding core slide mechanism
JP4458473B2 (en) 2004-09-28 2010-04-28 株式会社小糸製作所 Method for forming vehicle lamp part and apparatus for forming vehicle lamp part

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101288429B1 (en) * 2012-12-13 2013-07-22 우림기계(주) Device for handling a neutral position of gear in transmision
CN108582686A (en) * 2018-04-24 2018-09-28 中山世达模型制造有限公司 Core-pulling type mould without thimble
CN108582686B (en) * 2018-04-24 2024-04-19 中山世达模型制造有限公司 Ejector-pin-free core pulling type mold
KR102189547B1 (en) * 2020-04-27 2020-12-11 이종석 Manufacturing method of diaphragm
KR20220054970A (en) * 2020-10-26 2022-05-03 주식회사 서연이화 Undercut processing device of injection mold

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