KR970006495Y1 - Preform compression molding apparatus for monofilament - Google Patents
Preform compression molding apparatus for monofilament Download PDFInfo
- Publication number
- KR970006495Y1 KR970006495Y1 KR2019910008805U KR910008805U KR970006495Y1 KR 970006495 Y1 KR970006495 Y1 KR 970006495Y1 KR 2019910008805 U KR2019910008805 U KR 2019910008805U KR 910008805 U KR910008805 U KR 910008805U KR 970006495 Y1 KR970006495 Y1 KR 970006495Y1
- Authority
- KR
- South Korea
- Prior art keywords
- preform
- short fiber
- molding
- mold
- monofilament
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/12—Compression moulding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
요약서 없음No summary
Description
제 1 도는 본 고안에 따른 금형장치의 개략설명도.1 is a schematic explanatory diagram of a mold apparatus according to the present invention.
제 2 도는 종래구조를 나타내는 개략설명도이다.2 is a schematic explanatory diagram showing a conventional structure.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 단섬유 혼합액,2 : 성형틀,1: short fiber mixed liquid, 2: molding die,
2a : 구멍,3 : 정전기 발생장치,2a: hole, 3: electrostatic generator,
3a : 리이드선.3a: lead wire.
본 고안은 단섬유를 이용하여 예비성형체를 성형하는 금형장치에 관한 것으로, 특히 성형틀 주위에 정전기 발생부를 설치하여 균일한 예비성형체를 얻을 수 있도록 되어 있는 단섬유를 예비성형체로 성형하는 금형장치에 관한 것이다. 일반적으로 단섬유를 강화재로 이용하여 단섬유 복합체를 제조하는 경우에는 상기 단섬유를 압축 금형에서 압축 및 탈수시켜 예비성형체로 1차적으로 성형한 다음, 이 예비성형체를 이용하여 최종성형체를 제조하도록 되어 있는바, 그러나 종래에는 단섬유를 이용하여 예비성형체로 제조하는 경우 제 2 도에 도시된 바와 같이 원하는 성형틀(12)에 단섬유 혼합액(11)을 넣고 압축금형(14)으로 압축시키면서 이 성형틀(12)하부쪽에 연결된 진공탈수기(15)를 통해 탈수하도록 되어 있었다. 여기서 상기 압축금형(14)은 통상적으로 금속 또는 플라스틱재질로 되어 있는 까닭에 이 압축금형(14)을 화살표방향으로 이동시키는 이른바, 성형 및 탈수과정시 이 압축금형(14)과 성형틀(12)사이의 미세한 접촉공간사이로 공기가 흡입되어 성형되는 예비성형체에 국부적으로 밀도가 높아져 뭉침현상이 발생하게 되어짐에 따라, 복합제 제조시 용탕의 유동을 방해하여 양질의 복합제를 얻을 수 없게 되는 문제점이 있었다. 이에 본 고안은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 단섬유 혼합액이 담겨진 성형틀 주위에 정전기 발생부를 설치하여 발생되는 전하에 의해 단섬유입자들을 규칙적으로 배열시켜 균일한 예비성형체를 성형시키는 금형장치를 제공함에 그 목적이 있다. 상기와 같은 목적을 달성하기 위한 본 고안은, 단섬유 혼합액이 담겨지는 성형틀 둘레에 정전기 발생장치에 연결되는 여러개의 리이드선들이 설치되어지는 구조로 되어 있다.The present invention relates to a mold apparatus for molding a preform using short fibers, and more particularly, to a mold apparatus for forming a short fiber into a preform so that a uniform preform can be obtained by installing an electrostatic generator around the molding frame. It is about. In general, in the case of manufacturing a short fiber composite using short fibers as a reinforcing material, the short fibers are first molded into a preform by compressing and dehydrating the short fibers in a compression mold, and then manufacturing a final molded body using the preform. However, conventionally, when manufacturing a preform using short fibers, as shown in FIG. 2, the short fiber mixed solution 11 is put into a desired molding die 12 and compressed into a compression mold 14. Dehydration was carried out through a vacuum dehydrator 15 connected to the bottom of the mold 12. Since the compression mold 14 is usually made of metal or plastic, the compression mold 14 is moved in the direction of the arrow, so that the compression mold 14 and the mold 12 during the molding and dehydration process. As air is sucked into the fine contact spaces between the parts, the density is locally increased in the preform to be formed, thereby causing agglomeration, thereby preventing the flow of the molten metal in the preparation of the composite, thereby preventing obtaining a high quality composite. The present invention is devised to solve the above problems, by forming an electrostatic generating unit around the molding frame containing the short fiber mixture solution to form a uniform preform by regularly arranging the short fiber particles by the charge generated The purpose is to provide a mold apparatus. The present invention for achieving the above object is a structure in which a plurality of lead wires connected to the electrostatic generator is installed around the molding frame in which the short fiber mixture is contained.
이하 본 고안을 첨부된 예시도면에 의거 상세히 설명한다. 본 고안은 단섬유를 이용하여 예비성형체를 성형하는 금형장치에 있어서, 단섬유 혼합액(1)이 담겨지는 성형틀(2)둘레에는 정전기 발생장치(3)에 연결된 여러개의 리이드선(3a)들이 설치된 구조로 되어 있다. 도면중 미설명 부호, 4는 압축금형이고, 5는 진공탈수기이다. 이와 같이 이루어진 본 고안은 제 1 도에 도시된 바와 같이, 정전기 발생장치(3)에 연결된 여러개의 리이드선(3a)들이 성형틀(2)둘레에 설치되어져 있으며, 이 성형틀(2) 내부는 공지의 방식대로 압축금형(4)과 단섬유 혼합액(1)의 수분을 수집하는 진공탈수기(5)가 설치되어져 있는 한편, 정전기발생을 원활하게 하기 위해서 상기 단섬유 혼합액(1)은 부도체가 사용되어진다. 이어 본 고안의 작용을 살펴보면, 우선 상기 성형틀(2)내부에 단섬유 혼합액(1)을 넣고 압축금형(4)으로 압축시키게 되면 상기 단섬유 혼합액(1)중 액체는 성형틀(2)의 구멍(2a)을 통해 진공탈수기(5)쪽으로 수집되어지고 단섬유는 예비성형체로 1차적으로 성형되어지는바, 이때 상기 정전기발생장치(3)에서 정전기를 발생시키게 되면 단섬유 혼합액(1)의 입자에 +, - 전하가 발생하게 되고, 이 발생된 전하에 의해 입자들은 서로 척력의 힘으로 규칙적인 배열이 되어짐에 따라 단섬유의 국부적인 뭉침현상이 방지되어져 균일한 예비성형체를 성형시킬 수가 있다. 상기와 같이 본 고안에 따른 금형장치는, 성형틀(2)둘레에 정전기발생장치(3)에 접속된 리이드선들이 연결설치됨으로써, 단섬유 혼합액(1)의 입자를 고루게 배열시켜 성형되는 예비성형체의 국부적인 뭉침현상을 방지함에 따라 복합제 제조시 용탕의 유동을 방지하여 양질의 복합제를 얻을 수 있도록 되어 있으며 또한, 단섬유 혼합액(1)의 입자를 원하는 배열로 얻을 수 있는 잇점이 있다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The present invention is a mold apparatus for molding a preform using short fibers, wherein a plurality of lead wires (3a) connected to the electrostatic generator (3) is formed around the forming mold (2) in which the short fiber mixed liquid (1) is contained. It is installed structure. In the drawings, reference numeral 4 denotes a compression mold, and 5 denotes a vacuum dehydrator. According to the present invention, as shown in FIG. 1, a plurality of lead wires 3a connected to the electrostatic generator 3 are installed around the molding die 2, and the inside of the molding die 2 is A vacuum dehydrator 5 for collecting moisture of the compression mold 4 and the short fiber mixed liquid 1 is installed in a known manner, while the short fiber mixed liquid 1 is used by a non-conductor to facilitate the generation of static electricity. It is done. Subsequently, the operation of the present invention will be described. First, when the short fiber mixed solution 1 is put into the mold 2 and compressed into a compression mold 4, the liquid in the short fiber mixed solution 1 is formed of the mold 2. Collected toward the vacuum dehydrator (5) through the hole (2a) and the short fibers are primarily molded into a preform, when the static electricity is generated in the electrostatic generating device (3) of the short fiber mixed solution (1) The + and-charges are generated in the particles, and the generated charges cause the particles to be regularly arranged with repulsive force to prevent local clustering of short fibers, thereby forming a uniform preform. . As described above, in the mold apparatus according to the present invention, the lead wires connected to the electrostatic generator 3 are installed around the molding die 2 so that the particles of the short fiber mixed solution 1 are evenly arranged and molded. By preventing the local agglomeration of the molded body to prevent the flow of the molten metal in the preparation of the composite to obtain a high quality composite agent, and also has the advantage of obtaining the particles of the short fiber mixed solution (1) in the desired arrangement.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910008805U KR970006495Y1 (en) | 1991-06-14 | 1991-06-14 | Preform compression molding apparatus for monofilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910008805U KR970006495Y1 (en) | 1991-06-14 | 1991-06-14 | Preform compression molding apparatus for monofilament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930000459U KR930000459U (en) | 1993-01-20 |
| KR970006495Y1 true KR970006495Y1 (en) | 1997-06-25 |
Family
ID=19315110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910008805U KR970006495Y1 (en) | 1991-06-14 | 1991-06-14 | Preform compression molding apparatus for monofilament |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970006495Y1 (en) |
-
1991
- 1991-06-14 KR KR2019910008805U patent/KR970006495Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR930000459U (en) | 1993-01-20 |
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