KR20020025176A - Hot Runner System having a valve pin for protecting flow of gases or resins - Google Patents
Hot Runner System having a valve pin for protecting flow of gases or resins Download PDFInfo
- Publication number
- KR20020025176A KR20020025176A KR1020020014538A KR20020014538A KR20020025176A KR 20020025176 A KR20020025176 A KR 20020025176A KR 1020020014538 A KR1020020014538 A KR 1020020014538A KR 20020014538 A KR20020014538 A KR 20020014538A KR 20020025176 A KR20020025176 A KR 20020025176A
- Authority
- KR
- South Korea
- Prior art keywords
- valve pin
- hot runner
- runner system
- guide bush
- piston
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 12
- 239000011347 resin Substances 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 title description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- 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
- B29C45/2725—Manifolds
-
- 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
- B29C45/281—Drive means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
본 발명은 매니폴드내의 합성수지 공급용 탕도가 밸브핀 가이드 부쉬 외곽에 설치된 플라스틱 제품 사출성형용 핫런너 시스템에 관한 것으로서, 특히 밸브핀의 일정 높이에 가스나 수지의 역류방지를 위해 밸브핀과 핀의 승강통로 사이의 공극 폐쇄용 돌출턱이 형성된 밸브핀을 내장한, 합성수지 공급용 탕도가 밸브핀 가이드 부쉬 외곽에 설치된 플라스틱 제품 사출 성형용 핫런너 시스템에 관한 것이다.The present invention relates to a hot runner system for injection molding plastic products installed on the outer side of a valve pin guide bush for supplying synthetic resin in a manifold, and in particular, a valve pin and a pin to prevent backflow of gas or resin at a predetermined height of the valve pin. The present invention relates to a hot runner system for injection molding plastic products having a valve pin formed with a projection pin for closing the gap between lifting paths of a synthetic resin supply.
일반적으로 플라스틱 제품 사출 성형용 핫런너 시스템은, 특히 매니폴드(1)내의 합성수지 공급용 탕도(6)의 상부가 밸브핀 가이드 부쉬(5) 외곽에 형성된 핫런너 시스템은 도4내지 도6에 도시된 바와같이 밸브핀(2)이 상부는 굵고 하부는 가늘게 형성되도록 단턱(100)이 형성되어 있어서 밸브핀(2)과 밸브핀 가이드 부쉬(5)간의 간극인 승강통로(2a)사이로 가스나 합성수지가 역류하여 피스톤(3)까지 도달하게 되면 가스는 인체에 유해한 공해요인이 되고 수지는 고화되어 피스톤(3)내에서 밸브핀(2) 해드(4)의 작동을 방해하게되며 이로인해 균일하고 양질의 제품 성형이 어렵게 되고 양산도 할 수 없는 문제점이 발생했었다.In general, the hot runner system for injection molding of plastic products, in particular, the hot runner system in which the upper portion of the synthetic resin supply runway 6 in the manifold 1 is formed outside the valve pin guide bush 5 is illustrated in FIGS. 4 to 6. As shown, the stepped portion 100 is formed so that the upper portion of the valve pin 2 is thicker and the lower portion thereof is thin, so that the gas flows through the lifting passage 2a, which is a gap between the valve pin 2 and the valve pin guide bushing 5. When the synthetic resin flows back up to the piston (3), the gas becomes a harmful pollutant to the human body, and the resin solidifies and interferes with the operation of the valve pin (2) head (4) in the piston (3), which is uniform. There was a problem that it is difficult to produce high-quality products and mass production.
본 발명은 상기한 바와같은 종래의 핫런너 시스템의 결점을 개선하여 매니폴드내의 상부 탕도가 밸브핀 가이드 부쉬 외곽에 위치한 플라스틱 제품 사출 성형용핫런너 시스템에 있어서, 밸브핀의 최대 상승 높이만큼의 외주면에 돌출턱을 형성하고 그 돌출턱이 가이드 부위에 면접점될 때의 충격을 완화하기 위해 피스톤내에서 승강되는 밸브핀 해드에 밸브핀 승강 높이만큼의 스프링을 장착하므로서 밸브핀이 상승시에 밸브핀의 돌출턱에 의해 밸브핀 가이드 부쉬와 밸브핀의 공극인 승강통로를 차단하면서 피스톤내의 스프링에 의해서는 가이드 부쉬와 밸브핀의 돌출턱이 면접점시 충격을 완화해주므로서 가스나 수지의 역류를 효과적으로 예방해주는 가스나 수지의 역류방지용 밸브핀을 가진 핫런너 시스템을 제공코저 하는 것으로서 이를 첨부된 도면을 참조하면서 상세히 설명하면 다음과 같다.The present invention improves the deficiencies of the conventional hot runner system as described above, in the injection molding hot runner system for plastic products in which the upper turbidity in the manifold is located outside the valve pin guide bush, the outer circumferential surface of the valve pin as high as the maximum rising height. In order to alleviate the impact when the protruding jaw is contacted to the guide part, the spring is mounted on the valve pin head which is raised and lowered in the piston so that the height of the valve pin is increased. The projecting jaw blocks the lifting passage, which is the gap between the valve pin guide bush and the valve pin, and the spring in the piston reduces the impact at the contact point by the guide bush and the projecting jaw of the valve pin. To provide a hot runner system with a valve pin to prevent backflow of gases or resins. When described in detail with reference to the drawings as follows.
도 1 은 본 발명에 따른 상부 탕도가 밸브 가이드 부쉬 외곽에 위치한 핫런너 시스템의 전체 종단면도.1 is an overall longitudinal cross-sectional view of a hot runner system in which the upper runway is located outside the valve guide bush.
도 2 는 본 발명에 따른 상부 탕도가 밸브 가이드 부쉬 외곽에 위치한 핫런너 시스템중 핀의 요부 확대 종단면도.Figure 2 is an enlarged longitudinal cross-sectional view of the main portion of the pin of the hot runner system located in the upper guideway outside the valve guide bush according to the present invention.
도 3 은 본 발명에 따른 상부 탕도가 밸브 가이드 부쉬 외곽에 위치한 핫런너 시스템중 핀상부와 피스톤 결합부의 확대 종단면도.Figure 3 is an enlarged longitudinal cross-sectional view of the upper portion of the hot runner system in the hot runner system located in the outer valve guide bush in accordance with the present invention.
도 4 는 종래의 상부 탕도가 밸브 가이드 부쉬 외곽에 위치한 핫런너 시스템의 전체 종단면도.4 is a full longitudinal cross-sectional view of a hot runner system in which a conventional upper flow runway is located outside the valve guide bush.
도 5 는 도 4의 피스톤 부위의 확대 단면도.5 is an enlarged cross sectional view of the piston portion of FIG. 4;
도 6 은 도 4의 밸브핀의 요부 확대 단면도.6 is an enlarged cross-sectional view of a main portion of the valve pin of FIG. 4;
* 도면중 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 매니폴드2 : 밸브핀1: Manifold 2: Valve Pin
2a : 승강통로3 : 피스톤2a: lift passage 3: piston
4 : 밸브핀 해드5 : 밸브핀 가이드 부쉬4: Valve pin head 5: Valve pin guide bush
6 : 탕도7 : 스프링6: Tangdo 7: Spring
8 : 돌출턱8: protruding jaw
매니폴드(1)내에 위치한 합성수지 공급용 탕도(6)의 상부가 밸브핀 가이드 부쉬(5) 외곽에 형성된 핫런너 시스템에 있어서, 통상적으로 핫런너 시스템의 중앙에 위치한 밸브핀(2)의 최대 상승 높이만큼의 밸브핀(2) 외주면에 돌출턱(8)을 형성하고 밸브핀(2) 승강용 피스톤(3)내에서 승강되는 밸브핀 헤드(4)에 밸브핀 승강 높이만큼의 스프링(7)을 장착한 것으로 구성된다.In the hot runner system in which the upper portion of the synthetic resin supply runway 6 located in the manifold 1 is formed outside the valve pin guide bush 5, the maximum of the valve pin 2 located in the center of the hot runner system is typically used. A spring 7 as large as the valve pin lift height is formed on the valve pin head 4 which is formed at the outer circumferential surface of the valve pin 2 as much as the lift height and is elevated in the piston 3 for lifting the valve pin 2. )).
이상과 같이 구성되는 가스나 수지의 역류방지용 밸브핀을 가진 핫런너 시스템은 밸브핀(2)이 상승할 수 있는 최대의 높이만큼의 밸브핀(2) 외주면에 돌출턱(8)이 형성되어 있어서 피스톤(3)에 의해서 밸브핀(2)이 상승되면 밸브핀(2) 외주면에 형성된 돌출턱(8)의 상단이 밸브핀 가이드 부쉬(5)의 하단에 면접하여 밸브핀(2)과 밸브핀 가이드 부쉬(5)사이의 간극인 피스톤 승강통로(2a)로 가스나 수지의 역류를 차단하게 되므로 가스에 의한 공해 발생원인을 예방하게 되고 수지의 역류에 의하여 피스톤에 고화된 수지가 침착되어 피스톤 작동을 방해하게 되는 것을 예방하게되며 이로인해 제품을 양산할 수 있고 제품의 품질도 향상시키게 된다.In the hot runner system having the valve pin for preventing the backflow of gas or resin, the protruding jaw 8 is formed on the outer circumferential surface of the valve pin 2 as much as the maximum height at which the valve pin 2 can rise. When the valve pin (2) is raised by the piston (3), the upper end of the projection jaw (8) formed on the outer peripheral surface of the valve pin (2) interviews the lower end of the valve pin guide bush (5), the valve pin (2) and the valve pin Piston lifting passage 2a, which is a gap between the guide bushes 5, prevents the backflow of gas or resin, preventing the cause of pollution caused by gas, and solidifying resin is deposited on the piston by the backflow of the resin to operate the piston. This prevents the product from interfering with the product, which can mass-produce the product and improve the quality of the product.
본 발명 가스나 수지 역류 방지용 돌출턱이 형성된 밸브핀을 가진 핫런너 시스템은 밸브핀(2)과 밸브핀 가이드 부쉬(5)간의 승강통로(2a)로 가스나 수지가 역류되는 것이 방지되므로 공해방지 효과는 물론이고 피스톤의 원활한 작동과 제품의 양산 효과가 있다.The hot runner system having a valve pin having a projection jaw for preventing gas or resin backflow prevents backflow of gas or resin through a lifting passage 2a between the valve pin 2 and the valve pin guide bush 5, thereby preventing pollution. In addition to the effect, there is a smooth operation of the piston and mass production effect.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0014538A KR100488052B1 (en) | 2002-03-18 | 2002-03-18 | Hot Runner System having a valve pin for protecting flow of gases or resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0014538A KR100488052B1 (en) | 2002-03-18 | 2002-03-18 | Hot Runner System having a valve pin for protecting flow of gases or resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020025176A true KR20020025176A (en) | 2002-04-03 |
| KR100488052B1 KR100488052B1 (en) | 2005-05-06 |
Family
ID=19719877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0014538A KR100488052B1 (en) | 2002-03-18 | 2002-03-18 | Hot Runner System having a valve pin for protecting flow of gases or resins |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100488052B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101415425B1 (en) * | 2009-11-13 | 2014-07-04 | 현대중공업 주식회사 | Check Valve for gas injection |
| KR101421753B1 (en) * | 2009-11-13 | 2014-07-22 | 현대중공업 주식회사 | Timing device for check valve control |
| CN108015986A (en) * | 2017-12-13 | 2018-05-11 | 东莞市热恒注塑科技有限公司 | An a kind of nozzle bull needle-valve Hot Runner System |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1252970A (en) * | 1986-10-23 | 1989-04-25 | Mold-Masters Limited | Dual feed bushing for multi-cavity injection molding |
| CN1024453C (en) * | 1991-06-08 | 1994-05-11 | 谢桂深 | Combined automatic injection nozzle with anti-reflux and anti-leak junction |
| JP3112046B2 (en) * | 1992-07-06 | 2000-11-27 | 三菱マテリアル株式会社 | Valve gate type mold |
| JP2000326366A (en) * | 1999-05-19 | 2000-11-28 | Seiko Epson Corp | Hot runner valve gate mold |
| KR100351966B1 (en) * | 2000-09-15 | 2002-09-12 | 제일모직주식회사 | Nozzle for Injection of Liquid-Type Resin |
-
2002
- 2002-03-18 KR KR10-2002-0014538A patent/KR100488052B1/en active IP Right Grant
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101415425B1 (en) * | 2009-11-13 | 2014-07-04 | 현대중공업 주식회사 | Check Valve for gas injection |
| KR101421753B1 (en) * | 2009-11-13 | 2014-07-22 | 현대중공업 주식회사 | Timing device for check valve control |
| CN108015986A (en) * | 2017-12-13 | 2018-05-11 | 东莞市热恒注塑科技有限公司 | An a kind of nozzle bull needle-valve Hot Runner System |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100488052B1 (en) | 2005-05-06 |
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