KR102367453B1 - Structure For Ejecting Product From Molds - Google Patents

Structure For Ejecting Product From Molds Download PDF

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Publication number
KR102367453B1
KR102367453B1 KR1020200137121A KR20200137121A KR102367453B1 KR 102367453 B1 KR102367453 B1 KR 102367453B1 KR 1020200137121 A KR1020200137121 A KR 1020200137121A KR 20200137121 A KR20200137121 A KR 20200137121A KR 102367453 B1 KR102367453 B1 KR 102367453B1
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KR
South Korea
Prior art keywords
mold
air
movable mold
workpiece
fixed
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KR1020200137121A
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Korean (ko)
Inventor
구윤식
김지운
정지훈
박연호
안태민
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아진산업(주)
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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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/44—Removing or ejecting moulded 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B29C2043/5053—Removing moulded articles using pressurised gas, e.g. air

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention comprises: a movable mold and a fixed mold for forming a workpiece by forming a cavity in the center; a frame part supporting the fixed mold and having a mold operating cylinder installed between the movable mold and the frame part; an air cylinder having one end fixed to the frame part and the other end fixed to the movable mold to move together according to the operation of the movable mold and having the largest internal air volume when the movable mold is positioned at a first position for molding the workpiece and having the smallest internal air volume when the movable mold is positioned at a second position separated from the fixed mold to separate the workpiece after molding; and an air pipe path formed inside the movable mold or the fixed mold to inject air ejected depending on a change in the air volume of the air cylinder toward the cavity. Accordingly, the present invention does not require a separate pneumatic generator for supplying air to be supplied between the mold and the workpiece and can be installed in a conventional molding device to separate the workpiece.

Description

금형으로부터 가공물을 분리하기 위한 구조{Structure For Ejecting Product From Molds}Structure for Ejecting Product From Molds

본 발명은 금형으로부터 가공물을 분리하기 위한 구조에 관한 것으로, 보다 상세하게는 탄소섬유강화플라스틱 등과 같이 금형 내에서 PCM(Press Compress Molding) 공정을 통한 고온 가압성형되는 가공물을 성형후 금형으로부터 분리하기 위한 구조에 관한 것이다. The present invention relates to a structure for separating a workpiece from a mold, and more particularly, for separating a workpiece to be subjected to high temperature pressure molding through a PCM (Press Compress Molding) process in a mold, such as carbon fiber reinforced plastic, from the mold after molding. It's about structure.

탄소섬유강화플라스틱(Carbon Fiber Reinforced Plastic)으로 제조되는 가공물은 금형 내에서 고온 가압성형되는데, 성형 후 가공물의 수지성분이 금형 표면에 부착되어 수작업을 통하여 가공물을 분리해 내어야 하는 경우가 많다. A workpiece made of carbon fiber reinforced plastic is hot-pressed in a mold. After molding, the resin component of the workpiece adheres to the mold surface, so it is often necessary to manually separate the workpiece.

분리를 위해서는 통상 금형과 가공물 사이에 에어건을 사용하여 에어를 불어 넣거나, 또는 파이프 등을 금형과 가공물 사이에 밀어 넣는 방식 등을 사용하게 된다.For separation, a method of blowing air using an air gun between the mold and the workpiece, or pushing a pipe or the like between the mold and the workpiece is usually used.

대한민국 공개특허 10-2008-0029038호에는 금형의 캐비티로 공기를 취입할 수 있는 공기 취입부를 구비한 이젝터를 설치하여, 압축공기를 금형과 가공물 사이로 주입시켜 가공물을 분리하는 것이 개시되어 있다. Korean Patent Laid-Open Patent Publication No. 10-2008-0029038 discloses a method for separating a workpiece by installing an ejector having an air blowing unit capable of blowing air into a cavity of a mold and injecting compressed air between the mold and the workpiece.

또한, 대한민국 등록실용신안 20-0461879호에는 압축공기의 공급원을 별도로 마련하지 않고, 금형을 작동시키는 실린더에 공압을 제공하는 공압 공급장치로부터 압축공기를 공급받도록 하는 기술이 개시되어 있다. In addition, the Republic of Korea Registered Utility Model No. 20-0461879 discloses a technology for receiving compressed air from a pneumatic supply device that provides pneumatic pressure to a cylinder that operates a mold without separately providing a source of compressed air.

하지만, 금형을 작동시키는 실린더가 유압으로 작동하는 경우에는 상기 등록실용신안에 개시된 기술은 사용할 수 없고, 또한 공압 공급장치를 사용하더라도 별도로 공압장치의 용량 증설이 더 필요한 문제점이 있다.However, when the cylinder for operating the mold is hydraulically operated, the technology disclosed in the registered utility model cannot be used, and even if a pneumatic supply device is used, there is a problem that the capacity of the pneumatic device is additionally required.

KR 10-2008-29038 A, 2008.04.03., 도 6KR 10-2008-29038 A, 2008.04.03., FIG. 6 KR 20-0461879 Y1, 2012.08.10., 도 2KR 20-0461879 Y1, 2012.08.10., Fig. 2

본 발명은 금형과 가공물 사이에 가공물 탈거용 공기를 공급하기 위한 별도의 공압발생장치를 필요치 않고, 종래의 성형장치에 설치를 통하여 가공물을 분리할 수 있도록 하는 것을 그 목적으로 한다. The present invention does not require a separate pneumatic generator for supplying air for removing the workpiece between the mold and the workpiece, and it is an object of the present invention to separate the workpiece through installation in a conventional molding apparatus.

상기와 같은 목적을 달성하기 위해 안출된 본 발명의 금형으로부터 가공물을 분리하기 위한 구조는,The structure for separating the workpiece from the mold of the present invention devised to achieve the above object is,

중앙에 캐비티를 형성하여 가공물을 성형하는 가동금형 및 고정금형과; a movable mold and a fixed mold for forming a workpiece by forming a cavity in the center;

상기 고정금형을 지지하며, 상기 가동금형과의 사이에 금형작동 실린더가 설치된 프레임부와; a frame part supporting the fixed mold and having a mold operating cylinder installed between the movable mold and the movable mold;

상기 프레임부에 일단이 고정되며 타단은 가동금형에 고정되어 가동금형의 작동에 따라 함께 거동하며, 가동금형이 가공물을 성형하는 제 1 위치에 위치하였을 때 내부의 공기 체적이 가장 크게 되고, 성형후 가공물을 분리하기 위해 고정금형으로부터 이탈된 제 2 위치에 가동금형이 위치하였을 때 내부의 공기 체적이 가장 작게 되는 에어 실린더와;One end is fixed to the frame part and the other end is fixed to the movable mold and behaves together according to the operation of the movable mold. an air cylinder whose internal air volume is the smallest when the movable mold is positioned at a second position separated from the stationary mold to separate the workpiece;

상기 에어 실린더의 공기 체적의 변화에 따라 분출되는 공기를 상기 캐비티 측으로 분사하기 위해 가동금형 또는 고정금형 내부로 형성된 공기관로를 포함하는 것을 특징으로 한다. and an air conduit formed inside a movable mold or a fixed mold to inject air ejected according to a change in the air volume of the air cylinder toward the cavity.

상기 공기관로는 가동 금형과 고정금형 모두에 형성되어 있는 것도 바람직하다.It is also preferable that the air conduit is formed in both the movable mold and the stationary mold.

상기 공기관로에는 에어 실린더에서 나온 공기를 가동금형 및 고정금형, 가동금형, 고정금형 중 하나로 공급할 수 있는 방향절환밸브가 구비되는 것이 바람직하다. Preferably, the air pipe is provided with a direction switching valve capable of supplying air from the air cylinder to one of a movable mold, a stationary mold, a movable mold, and a stationary mold.

본 발명은 금형과 가공물 사이에 공급할 공기를 공급하기 위한 별도의 공압발생장치를 필요치 않고, 종래의 성형장치에 설치하여 가공물을 분리할 수 있는 효과가 있다. The present invention does not require a separate pneumatic generator for supplying air to be supplied between the mold and the workpiece, and is installed in a conventional molding apparatus to separate the workpiece.

도 1, 2는 본 발명 일 실시예 구조가 적용된 성형장치를 나타낸 도.
도 3은 본 발명 다른 실시예 구조가 적용된 성형장치를 나타낸 도.1 and 2 are views showing a molding apparatus to which the structure of an embodiment of the present invention is applied.
3 is a view showing a molding apparatus to which the structure of another embodiment of the present invention is applied.

이상과 같은 본 발명에 대한 해결하고자 하는 과제, 과제의 해결 수단, 발명의 효과를 포함한 구체적인 사항들은 다음에 기재할 실시예 및 도면들에 포함되어 있다. 본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예를 참조하면 명확해질 것이다. Specific details including problems to be solved, means for solving the problems, and effects of the present invention as described above are included in the embodiments and drawings to be described below. Advantages and features of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in the present specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

이하, 첨부된 도면을 참조하여 본 발명을 그 실시예에 따라 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail according to embodiments thereof with reference to the accompanying drawings.

본 실시예의 구조가 적용된 성형장치는 도 1과 도 2에 도시한 바와 같다. The molding apparatus to which the structure of this embodiment is applied is shown in FIGS. 1 and 2 .

성형장치는 중앙에 캐비티(30)가 형성된 가동금형(20) 및 고정금형(10)을 구비하고 캐비티(30) 내에서 가공물(1)을 성형하게 된다. The molding apparatus is provided with a movable mold 20 and a stationary mold 10 having a cavity 30 formed in the center, and molds the workpiece 1 in the cavity 30 .

고정금형(10)과 가동금형(20)은 프레임부(40)에 설치되는데, 가동금형(20)은 금형작동 실린더(50)에 의해 가동되게 된다.The fixed mold 10 and the movable mold 20 are installed in the frame part 40 , and the movable mold 20 is operated by the mold operating cylinder 50 .

가동금형(20)과 프레임부(40) 사이에는 에어실린더(60)가 설치된다. 에어실린더(60)은 가동금형(20)이 가공물을 성형하는 제 1 위치(도 1)에 위치하였을 때 내부의 공기 체적이 가장 크게 되고, 성형후 가공물을 분리하기 위해 고정금형으로부터 이탈된 제 2 위치(도 2)에 위치하였을 때 내부의 공기 체적이 가장 작게 된다. An air cylinder 60 is installed between the movable mold 20 and the frame part 40 . The air cylinder 60 has the largest internal air volume when the movable mold 20 is positioned at the first position (FIG. 1) for molding the workpiece, and the second separated from the stationary mold to separate the workpiece after molding. The air volume inside is the smallest when it is located in the position (FIG. 2).

이에 따라 제 1 위치에서 제 2 위치로 가동금형(20)이 작동되면, 에어실린더(60) 내의 공기는 가동금형(20) 내부를 관통한 공기관로(70)를 통하여 캐비티(30) 측으로 분출되며, 캐비티(30)에 부착되어 있던 가공물(1)을 이탈시키게 된다. Accordingly, when the movable mold 20 is operated from the first position to the second position, the air in the air cylinder 60 is ejected toward the cavity 30 through the air pipe 70 penetrating the inside of the movable mold 20. , the workpiece (1) attached to the cavity (30) is separated.

또한 에어실린더(60)은 가동금형(20)이 제 1 위치로 다시 이동할 때 상기 공기관로(70)를 통해 외부 공기를 내부로 흡입하게 된다. In addition, when the movable mold 20 moves back to the first position, the air cylinder 60 sucks outside air through the air pipe 70 to the inside.

또한, 공기관로(70)은 고정금형(10)에만 설치될 수도 있을 것이며, 가공물(1)의 상하면 형상 등에 따라 그 형성위치를 선택할 수 있을 것이다.In addition, the air conduit 70 may be installed only in the stationary mold 10 , and the formation position thereof may be selected according to the shape of the upper and lower surfaces of the workpiece 1 .

도 3은 본 발명의 다른 실시예를 나타낸 것으로, 공기관로(70)은 도 3과 같이 가동금형(20) 뿐만 아니라, 고정금형(10)에도 형성된 것이다. 3 shows another embodiment of the present invention, the air pipe 70 is formed in the stationary mold 10 as well as the movable mold 20 as shown in FIG.

에어 실린더(60)의 공기를 고정금형(10)으로 공급하는 것은 압력호스 등에 의해 이루어질 수 있음은 당연하다 할 것이다.It will be natural that the supply of air from the air cylinder 60 to the fixed mold 10 can be made by a pressure hose or the like.

이때는 에어실린더(60)의 공기를 가동금형(20) 및/또는 고정금형(10)으로 선택적으로 보낼 수 있는 방향절환밸브(80)을 더 구비하게 된다. 가공물이 가동금형(20) 또는 고정금형(10)의 한측에만 붙어 있을 경우, 그 금형쪽으로만 공기를 공급하여야 하기 때문이다. In this case, a direction switching valve 80 that can selectively send the air of the air cylinder 60 to the movable mold 20 and/or the fixed mold 10 is further provided. This is because, when the workpiece is attached to only one side of the movable mold 20 or the fixed mold 10, air must be supplied only to the mold side.

방향절환밸브(80)는 수동 또는 자동으로 제어하는 것도 가능할 것이다.. The directional control valve 80 may be controlled manually or automatically.

상기 설명한 바와 같이 본 발명에서는 가동금형과 같이 거동하는 에어실린더에 의해 별도의 공기공급장치를 구비하지 않고도 금형으로부터 가공물을 쉽게 이탈시킬 수 있게 된다.As described above, in the present invention, the workpiece can be easily separated from the mold without a separate air supply device by the air cylinder that behaves like a movable mold.

이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 : 가공물 10 : 고정금형 20 : 가동금형 30 : 캐비티 40 : 프레임부
50 : 금형작동실린더 60 : 에어실린더 70 : 공기관로DESCRIPTION OF SYMBOLS 1: workpiece 10: fixed mold 20: movable mold 30: cavity 40: frame part
50: mold operation cylinder 60: air cylinder 70: air pipe

Claims (3)

중앙에 캐비티(30)를 형성하여 가공물(1)을 성형하는 가동금형(20) 및 고정금형(10)과;
상기 고정금형(10)을 지지하며, 상기 가동금형(20)과의 사이에 금형작동 실린더(50)가 설치된 프레임부(40)와;
상기 프레임부(40)에 일단이 고정되며 타단은 가동금형(20)에 고정되어 가동금형(20)의 작동에 따라 함께 거동하며, 가동금형(20)이 가공물(1)을 성형하는 제 1 위치에 위치하였을 때 내부의 공기 체적이 가장 크게 되고, 성형후 가공물(1)을 분리하기 위해 고정금형(10)으로부터 이탈된 제 2 위치에 가동금형(20)이 위치하였을 때 내부의 공기 체적이 가장 작게 되는 에어 실린더(60)와;
상기 에어 실린더(60)의 공기 체적의 변화에 따라 분출되는 공기를 상기 캐비티(30) 측으로 분사하기 위해 상기 가동금형(20) 또는 상기 고정금형(10), 또는 상기 가동금형(20) 및 상기 고정금형(10)에 형성되는 공기관로(70)를 포함하고,
상기 공기관로(70)에는 에어 실린더(60)에서 나온 공기를 상기 가동금형(20) 및 상기 고정금형(10), 상기 가동금형(20), 상기 고정금형(10) 중 하나로 공급할 수 있는 방향절환밸브(80)가 구비되는 것을 특징으로 하는 금형으로부터 가공물을 분리하기 위한 구조.a movable mold 20 and a fixed mold 10 for forming the workpiece 1 by forming a cavity 30 in the center;
a frame part 40 supporting the fixed mold 10 and having a mold operating cylinder 50 installed between the movable mold 20 and the movable mold 20;
One end is fixed to the frame part 40 and the other end is fixed to the movable mold 20 and moves together according to the operation of the movable mold 20, and the movable mold 20 forms the workpiece 1 at the first position. The internal air volume is the largest when positioned at a small air cylinder 60;
The movable mold 20 or the stationary mold 10, or the movable mold 20 and the fixed mold 20 or the stationary mold 10 to inject the air ejected according to the change in the air volume of the air cylinder 60 toward the cavity 30 Including an air pipe 70 formed in the mold 10,
In the air conduit 70, the air from the air cylinder 60 can be supplied to one of the movable mold 20, the stationary mold 10, the movable mold 20, and the stationary mold 10. A structure for separating the workpiece from the mold, characterized in that the valve (80) is provided. 삭제delete 삭제delete
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675713U (en) * 1993-04-12 1994-10-25 車体工業株式会社 Release mechanism in mold
KR200324439Y1 (en) * 2003-04-07 2003-08-25 박화석 mold for injection molding
KR20080029038A (en) 2006-09-28 2008-04-03 윤병흔 Ejector for plastic injection molding apparatus
KR20100041087A (en) * 2008-10-13 2010-04-22 김선욱 Apparatus for forming eba product and method for thereof
KR20100133794A (en) * 2009-06-12 2010-12-22 주식회사 프라코 Injection molding apparatus
KR200461879Y1 (en) 2010-05-11 2012-08-10 주식회사 스타텍 Molding of ejecting product using air

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675713U (en) * 1993-04-12 1994-10-25 車体工業株式会社 Release mechanism in mold
KR200324439Y1 (en) * 2003-04-07 2003-08-25 박화석 mold for injection molding
KR20080029038A (en) 2006-09-28 2008-04-03 윤병흔 Ejector for plastic injection molding apparatus
KR20100041087A (en) * 2008-10-13 2010-04-22 김선욱 Apparatus for forming eba product and method for thereof
KR20100133794A (en) * 2009-06-12 2010-12-22 주식회사 프라코 Injection molding apparatus
KR200461879Y1 (en) 2010-05-11 2012-08-10 주식회사 스타텍 Molding of ejecting product using air

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