KR100488052B1 - 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
- KR100488052B1 KR100488052B1 KR10-2002-0014538A KR20020014538A KR100488052B1 KR 100488052 B1 KR100488052 B1 KR 100488052B1 KR 20020014538 A KR20020014538 A KR 20020014538A KR 100488052 B1 KR100488052 B1 KR 100488052B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve pin
- hot runner
- runner system
- resin
- guide bush
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 15
- 239000011347 resin Substances 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 title description 11
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 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
밸브핀 가이드 부쉬(5)의 외곽에 수지탕도(6)가 형성된 플라스틱 사출 성형용 핫런너 시스템에 있어서, 밸브핀(2)의 외주변에 돌출턱(8)을 형성하였으므로 밸브핀(2)이 상승시에 돌출턱(8)이 밸브핀 가이드 부쉬(5)의 하단에 면접되어 밸브핀(2)과 부쉬(5) 사이의 승강통로(2a)로 가스나 수지의 역류를 막아주므로서 공해방지 및 피스톤에 수지의 흐름 및 고착을 예방해주게 되어 양질의 제품을 양산할 수 있게되는 것이다.In the plastic injection molding hot runner system in which the resin flowway 6 is formed on the periphery of the valve pin guide bush 5, the protruding jaw 8 is formed on the outer periphery of the valve pin 2 so that the valve pin 2 At this time, the projection jaw (8) is interviewed at the lower end of the valve pin guide bush (5) to prevent backflow of gas or resin to the lifting passage (2a) between the valve pin (2) and the bush (5) to prevent pollution And to prevent the flow and sticking of the resin to the piston will be able to mass-produce high-quality products.
Description
본 발명은 매니폴드내의 용융합성수지 공급용 탕도가 밸브핀 가이드 부쉬 외곽에 설치된 플라스틱 제품 사출성형용 핫런너 시스템에 관한 것으로서, 특히 용융합성수지 공급용 탕도가 밸브핀 가이드 부쉬 외곽에 설치되고 밸브핀의 일정높이 외주면에 가스나 수지의 역류 방지용 돌출턱이 형성된 플라스틱 제품 사출 성형용 핫런너 시스템에 관한 것이다.The present invention relates to a hot runner system for injection molding plastic products in which a melt flow for supplying molten synthetic resin in a manifold is installed outside the valve pin guide bush, and in particular, a melt flow for supplying molten synthetic resin is installed outside the valve pin guide bush and The present invention relates to a hot runner system for injection molding of plastic products, the protrusion of which prevents a backflow of gas or resin is formed on an outer circumferential surface of a predetermined height.
일반적으로 플라스틱 제품 사출 성형용 핫런너 시스템, 특히 매니폴드(1)내의 용융합성수지 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 용융합성수지가 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, a hot runner system for injection molding a plastic product, in particular, a hot runner system having an upper portion of a molten synthetic resin supply runway 6 in the manifold 1 outside the valve pin guide bush 5 is illustrated in FIGS. 4 to 6. As shown in the drawing, the stepped portion 100 is formed so that the upper portion of the valve pin 2 is thick and the lower portion thereof is formed between the lifting passages 2a, which is a gap between the valve pin 2 and the valve pin guide bush 5. When the gas or molten synthetic resin flows back 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. Due to this, it is difficult to form a uniform and high-quality product and a problem cannot be produced.
본 발명은 상기한 바와같은 종래의 핫런너 시스템의 결점을 개선하여 매니폴드내의 상부 탕도가 밸브핀 가이드 부쉬 외곽에 위치하고 피스톤내에는 밸브핀 승강시에 충격을 완화하기위해 밸브핀 승강높이만큼의 스프링이 장착된 플라스틱 제품 사출 성형용 핫런너 시스템에 있어서, 밸브핀의 최대 상승 높이만큼의 외주면에 돌출턱을 형성하므로서 밸브핀이 상승시에 그 돌출턱이 가이드 부쉬에 면접될 때 피스톤내의 스프링에 의해서는 충격이 완화되면서 밸브핀 외주면의 돌출턱에 의해 밸브핀 가이드 부쉬와 밸브핀의 공극인 승강통로를 차단하여 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 shortcomings of the conventional hot runner system as described above so that the upper turbidity in the manifold is located outside the valve pin guide bush and the piston pin lift height is increased to alleviate the impact when the valve pin is lifted. In the spring-loaded hot runner system for plastic injection molding, a protrusion is formed on the outer circumferential surface of the valve pin by the maximum height of the valve pin so that when the valve pin is raised, the protrusion is contacted by the guide bush by the spring in the piston. The hot runner system has a valve pin for preventing backflow of gas or resin that effectively prevents backflow of gas or resin by blocking the lifting passage, which is the gap between the valve pin guide bush and the valve pin, by the protrusion of the outer surface of the valve pin. It will be described in detail with reference to the accompanying drawings as to provide as follows.
매니폴드(1)내에 위치한 용융합성수지 공급용 탕도(6)의 상부가 밸브핀 가이드 부쉬(5) 외곽에 형성되고 밸브핀(2) 승강용 피스톤(3)내의 밸브핀 헤드(4)에 밸브핀 승강 높이만큼의 스프링(7)이 장착된 핫런너 시스템에 있어서, 상기 핫런너 시스템의 중앙에 위치한 밸브핀(2)의 최대 상승 높이만큼의 밸브핀(2) 외주면에 돌출턱(8)을 형성한 것으로 구성된다.An upper portion of the molten synthetic resin supply inlet manifold (6) located in the manifold (1) is formed outside the valve pin guide bush (5) and the valve pin head (4) in the valve pin (2) lifting piston (3) In a hot runner system equipped with a spring (7) equal to the height of the pin lift, the projection jaw (8) is provided on the outer peripheral surface of the valve pin (2) by the maximum lift height of the valve pin (2) located in the center of the hot runner system. It consists of what was formed.
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.
도 1 은 본 발명에 따른 핫런너 시스템의 전체 종단면도.1 is a longitudinal cross-sectional view of a hot runner system according to the present invention;
도 2 는 본 발명에 따른 핫런너 시스템중 핀의 요부 확대 종단면도.Figure 2 is an enlarged longitudinal sectional view of the main portion of the pin of the hot runner system according to the present invention.
도 3 은 본 발명에 따른 핫런너 시스템중 핀상부와 피스톤 결합부의 확대 종단면도.Figure 3 is an enlarged longitudinal cross-sectional view of the pin portion and the piston engaging portion of the hot runner system according to 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 : 매니폴드 2 : 밸브핀1: Manifold 2: Valve Pin
2a : 승강통로 3 : 피스톤2a: lift passage 3: piston
4 : 밸브핀 해드 5 : 밸브핀 가이드 부쉬4: Valve pin head 5: Valve pin guide bush
6 : 탕도 7 : 스프링6: Tangdo 7: spring
8 : 돌출턱8: protruding jaw
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 KR20020025176A (en) | 2002-04-03 |
| KR100488052B1 true 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) |
Families Citing this family (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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264725A2 (en) * | 1986-10-23 | 1988-04-27 | Mold-Masters Limited | Dual feed bushing for multi-cavity injection molding |
| KR930000234A (en) * | 1991-06-08 | 1993-01-15 | 꽈이-숨 쎄 | Nozzle for Injection Molding Machine |
| JPH0623804A (en) * | 1992-07-06 | 1994-02-01 | Mitsubishi Materials Corp | Valve gate type mold |
| JP2000326366A (en) * | 1999-05-19 | 2000-11-28 | Seiko Epson Corp | Hot runner valve gate mold |
| KR20020021520A (en) * | 2000-09-15 | 2002-03-21 | 안복현 | Nozzle for Injection of Liquid-Type Resin |
-
2002
- 2002-03-18 KR KR10-2002-0014538A patent/KR100488052B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264725A2 (en) * | 1986-10-23 | 1988-04-27 | Mold-Masters Limited | Dual feed bushing for multi-cavity injection molding |
| KR930000234A (en) * | 1991-06-08 | 1993-01-15 | 꽈이-숨 쎄 | Nozzle for Injection Molding Machine |
| JPH0623804A (en) * | 1992-07-06 | 1994-02-01 | Mitsubishi Materials Corp | Valve gate type mold |
| JP2000326366A (en) * | 1999-05-19 | 2000-11-28 | Seiko Epson Corp | Hot runner valve gate mold |
| KR20020021520A (en) * | 2000-09-15 | 2002-03-21 | 안복현 | Nozzle for Injection of Liquid-Type Resin |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020025176A (en) | 2002-04-03 |
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