KR100510578B1 - Water type cooling device for injection mold cooling - Google Patents
Water type cooling device for injection mold cooling Download PDFInfo
- Publication number
- KR100510578B1 KR100510578B1 KR10-2003-0016715A KR20030016715A KR100510578B1 KR 100510578 B1 KR100510578 B1 KR 100510578B1 KR 20030016715 A KR20030016715 A KR 20030016715A KR 100510578 B1 KR100510578 B1 KR 100510578B1
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- South Korea
- Prior art keywords
- cooling
- parison
- mold
- nozzle
- header
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 3
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 abstract description 16
- 238000000465 moulding Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Classifications
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
본 발명은 사출금형 냉각용 수냉식 냉각장치에 관한 것이며, 상세하게는 블로금형 냉각용 수냉식 냉각장치에 관한 것으로서, 패리손의 헤더 냉각이 적정하게 이루어지도록 한 것이다.The present invention relates to a water-cooled chiller for injection mold cooling, and more particularly, to a water-cooled chiller for blow mold-type cooling, wherein the header cooling of the parison is performed properly.
본 발명은 금형(1)과, 상기 금형(1) 내부에 위치되어 압축공기를 통해 일정 형상으로 압착되는 패리손(3)과, 상기 패리손(3)의 헤더(5)로 인서트되어 열교환겸 압축공기가 공급되는 냉각장치부재(7)로 구성된 사출금형 냉각용 수냉식 냉각장치에 있어서, 상기 냉각장치부재(7)는 하우징(30)과, 상기 하우징(30) 중앙부분에 형성되어 패리손(3) 내측으로 압축공기를 공급함과 아울러 패리손(3)의 헤더(5)를 냉각하는 노즐겸 중공형히트파이프(32)와, 상기 노즐겸 중공형히트파이프(32)의 일단부에 유입구(36)와 유출구(38)가 일체로 형성되어 냉각수의 유입과 유출이 이루어지게 하는 냉각수수용부(34)로 이루어진 것이다.The present invention is inserted into the mold (1), the parison (3) which is located inside the mold (1) and compressed in a predetermined shape through the compressed air, and the header (5) of the parison 3 is inserted into the heat exchange In the water-cooled cooling apparatus for injection mold cooling comprising a cooling device member 7 to which compressed air is supplied, the cooling device member 7 is formed at the center of the housing 30 and the housing 30, and the parison ( 3) a nozzle and hollow heat pipe 32 for supplying compressed air to the inside and cooling the header 5 of the parison 3, and an inlet portion at one end of the nozzle and hollow heat pipe 32; 36) and the outlet 38 is formed integrally with the coolant accommodating part 34 to allow the inflow and outflow of the coolant.
Description
본 발명은 사출금형 냉각용 수냉식 냉각장치에 관한 것이며, 상세하게는 블로금형 냉각용 수냉식 냉각장치에 관한 것이다.The present invention relates to a water-cooled chiller for injection mold cooling, and more particularly, to a water-cooled chiller for blow mold cooling.
일반적으로 알려진 바와 같이 사출 성형이란 용융된 고분자를 금형의 공동 내로 주입시킨 다음 냉각시켜 특정 형태의 제품을 생산하는 것으로서, 상기 제품의 품질은 사출 속도와 사출 압력, 용융고분자의 온도, 금형의 온도 등에 의해서 결정되는 것이며, 상기 사출이 이루어질 때 금형의 온도가 지나치게 높거나 낮은 경우 성형 불량의 주원인이 되는 것이다.As is generally known, injection molding refers to the injection of molten polymer into a cavity of a mold and then to cooling to produce a specific type of product. The quality of the product is determined by injection speed, injection pressure, melt polymer temperature, mold temperature, and the like. If the temperature of the mold is too high or low when the injection is made is the main cause of the molding failure.
상기 금형의 온도를 적정하게 유지시키기 위하여 금형의 내부에는 냉각수홀을 형성하여 금형 내부로 냉각수가 이동되게 하는 것이고, 상기 금형을 통해 특정 제품(패리손(튜브 형상))이 형성될 때 압축공기가 인입되는 성형품의 헤더(Neck Part)에는 추가적인 냉각수 공급을 통해 패리손의 균일한 냉각이 필요하게 하는 것이다.In order to maintain the mold temperature properly, a coolant hole is formed inside the mold to move the coolant into the mold, and compressed air is formed when a specific product (parison (tube shape)) is formed through the mold. The neck of the incoming molded part (Neck Part) is required to uniformly cool the parison through additional cooling water supply.
종래의 패리손 제품 성형시에 수냉식 냉각장치는 도 1에 도시한 바와 같이, 금형(1)과, 상기 금형(1) 내부에 위치되어 압축공기를 통해 일정 형상으로 압착되는 패리손(3)과, 상기 패리손(3)의 헤더(5)로 인서트되어 열교환겸 압축공기가 공급되는 냉각장치부재(7)로 구성된 것이다.As shown in FIG. 1, a water-cooled cooling apparatus for molding a conventional parison product includes a mold 1 and a parison 3 positioned inside the mold 1 and compressed into a predetermined shape through compressed air. The cooling device member 7 is inserted into the header 5 of the parison 3 and supplied with heat exchange and compressed air.
상기 냉각장치부재(7)는 냉각수가 유입 및 유출되게 내부 공간이 형성된 하우징(9)과, 상기 하우징(9)의 중앙부분에 관통됨과 아울러 상기 패리손(3)의 내부로 압축공기가 유입되게 하는 노즐(11)로 구성된 것이다. 상기 하우징(9)의 유입구(13)와 유출구(15) 사이에는 열교환홀(17)을 하우징(9)의 길이방향으로 형성하여 유입구(13)로부터 인입된 냉각수가 흐르도록 한 것이며, 상기 열교환홀(17)을 경유한 냉각수는 유출구(15)를 통해 배출되게 하는 것이다.The cooling device member 7 includes a housing 9 having an inner space formed therein for allowing the coolant to flow in and out, and a passage of the compressed air into the parison 3 while passing through a central portion of the housing 9. It is composed of a nozzle (11). The heat exchange hole 17 is formed in the longitudinal direction of the housing 9 between the inlet 13 and the outlet 15 of the housing 9 to allow the coolant introduced from the inlet 13 to flow. Cooling water via (17) is to be discharged through the outlet (15).
상기 열교환홀(17)은 하우징(9)의 길이방향으로 형성하여야 하므로 그 크기를 좁게 형성하는 것이며, 상기 유입구(13)와 유출구(15)는 열교환홀(17)의 크기 보다 크게 형성하여 냉각수의 이동이 원활하게 하는 것이다.The heat exchange hole 17 is to be formed in the longitudinal direction of the housing (9) to form a narrow size, the inlet 13 and outlet 15 is formed larger than the size of the heat exchange hole (17) of the cooling water It is to move smoothly.
그러나 상기한 사출금형 냉각용 수냉식 냉각장치는, 하우징(9)의 길이방향으로 열교환홀(17)을 좁게 형성하여야 하기 때문에 하우징(9) 제작시 제작 비용이 상승하는 것이고, 상기 열교환홀(17)이 좁게 형성되어 있으므로 열교환홀(17) 내부로 퇴적물들이 빠른 주기로 침적됨과 아울러 열교환홀(17)을 차단하므로 이에 대한 유지보수 주기가 짧아지는 문제점이 있었다.However, in the injection mold cooling water-cooled cooling apparatus, since the heat exchange hole 17 must be narrowly formed in the longitudinal direction of the housing 9, the manufacturing cost increases when the housing 9 is manufactured, and the heat exchange hole 17 Since it is formed narrow, sediments are deposited in the heat exchange hole 17 at a rapid cycle, and the heat exchange hole 17 is blocked, so that there is a problem that the maintenance cycle thereof is shortened.
그리고 하우징(9)의 유입구(13)와 열교환홀(17) 및 유출구(15)를 통해 패리손(3)의 헤더(5) 냉각이 이루어질 때 좁은 열교환홀(17)로 인해서 냉각수의 이동이 적정하게 이루어지지 않아 헤더(5)부분의 불량이 종종 초래되는 단점도 있었다.When the header 5 of the parison 3 is cooled through the inlet 13, the heat exchange hole 17, and the outlet 15 of the housing 9, the movement of the coolant is appropriate due to the narrow heat exchange hole 17. There was also a disadvantage that the defect of the header 5 part is often not made.
본 발명은 상기한 문제점을 시정하여, 패리손의 헤더 냉각이 적정하게 이루어지도록 한 사출금형 냉각용 수냉식 냉각장치를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION An object of the present invention is to provide a water-cooled cooling apparatus for injection mold cooling in which the above problems are corrected so that header cooling of the parison is performed properly.
상기한 목적을 달성하기 위하여, 본 발명은 금형과, 상기 금형 내부에 위치된 패리손의 헤더로 인서트되는 냉각장치부재로 구성된 사출금형 냉각용 수냉식 냉각장치에 있어서, 상기 냉각장치부재는 하우징과, 상기 하우징 중앙부분에 형성되는 노즐겸 중공형히트파이프와, 상기 노즐겸 중공형히트파이프의 일단부에 유입구와 유출구가 일체로 형성되는 냉각수수용부로 이루어진 것이다.In order to achieve the above object, the present invention is a water cooling chiller for injection mold cooling consisting of a mold and a cooling device member inserted into the header of the parison located inside the mold, the cooling device member is a housing, The nozzle and the hollow heat pipe formed in the center portion of the housing, and the cooling water accommodating portion in which the inlet and the outlet are integrally formed at one end of the nozzle and the hollow heat pipe.
본 발명은 도 2 내지 도 4에 도시한 바와 같이, 금형(1)과, 상기 금형(1) 내부에 위치되어 압축공기를 통해 일정 형상으로 압착되는 패리손(3)과, 상기 패리손(3)의 헤더(5)로 인서트되어 열교환겸 압축공기가 공급되는 냉각장치부재(7)로 구성된 사출금형 냉각용 수냉식 냉각장치에 있어서, 상기 냉각장치부재(7)는 하우징(30)과, 상기 하우징(30) 중앙부분에 형성되어 패리손(3) 내측으로 압축공기를 공급함과 아울러 패리손(3)의 헤더(5)를 냉각하는 노즐겸 중공형히트파이프(32)와, 상기 노즐겸 중공형히트파이프(32)의 일단부에 유입구(36)와 유출구(38)가 일체로 형성되어 냉각수의 유입과 유출이 이루어지게 하는 냉각수수용부(34)로 이루어진 것이다.2 to 4, the mold 1, a parison 3 positioned inside the mold 1 and compressed in a predetermined shape through compressed air, and the parison 3. In the injection mold cooling water-cooled chiller composed of a chiller member (7) which is inserted into the header (5) of the heat supply and supplied with heat exchange and compressed air, the chiller member (7) comprises a housing (30) and the housing (30) A nozzle and hollow heat pipe (32) formed in the center portion and supplying compressed air to the parison (3) inside and cooling the header (5) of the parison (3); An inlet 36 and an outlet 38 are integrally formed at one end of the heat pipe 32 to form a coolant accommodating part 34 to allow inflow and outflow of the coolant.
상기 노즐겸 중공형히트파이프(32)는 압축공기가 이동되게 길이방향으로 형성되는 노즐(40)과, 상기 노즐(40)의 외측으로 형성되어 외부의 온도에 따라 열전달이 이루어지도록 작동유체가 충진되는 작동유체부(42)로 구성되는 것이다.The nozzle and hollow heat pipe 32 is a nozzle 40 is formed in the longitudinal direction to move the compressed air, and the working fluid is filled so that the heat is transferred to the outside of the nozzle 40 is formed according to the outside temperature It is composed of a working fluid portion 42.
이상과 같은 본 발명은 패리손의 헤더 냉각이 적정하게 이루어지도록 하는 것으로서, 냉각장치부재(7)의 하우징(30) 길이방향으로 노즐겸 중공형히트파이프(32)를 내설함과 아울러 상기 노즐겸 중공형히트파이프(32)의 중앙부분에 노즐(40)을 형성하고, 상기 노즐(40)의 외주연에 작동유체가 수용되는 작동유체부(42)를 형성하며, 상기 노즐겸 중공형히트파이프(32)의 일측에 냉각수수용부(34)를 형성하는 것이다.The present invention as described above is to ensure the proper cooling of the header of the parison, the nozzle and the hollow heat pipe 32 in the longitudinal direction of the housing 30 of the cooling device member 7 and the nozzle and The nozzle 40 is formed at the center portion of the hollow heat pipe 32, and the working fluid part 42 is formed at the outer circumference of the nozzle 40 to accommodate the working fluid. The nozzle and hollow heat pipe ( The cooling water accommodating part 34 is formed at one side of the 32.
상기와 같이 형성된 상태에서 패리손(3)의 헤더(5)측으로 냉각장치부재(7)를 인서트시켜 패리손(3)의 헤더(5) 냉각이 원활하게 이루어지도록 하는 것으로서, 상기 패리손(3)의 헤더(5)에 냉각장치부재(7)의 일단을 인서트시킨 후 도시하지 않은 냉각수 파이프를 냉각수수용부(34)의 유입구(36)에 연결하고, 상기 냉각수수용부(34)의 유출구(38)를 냉각수 배출파이프(미도시)에 연결하며, 노즐(40)을 압축공기 파이프(미도시)와 연결시켜서 압축공기가 패리손(3) 내측으로 인입되게 하는 것이다.By inserting the cooling device member 7 toward the header 5 side of the parison 3 in the state formed as described above, the cooling of the header 5 of the parison 3 is performed smoothly. Insert one end of the cooling device member (7) to the header (5) of the) and then connect a cooling water pipe (not shown) to the inlet port 36 of the cooling water receiving section 34, and the outlet of the cooling water receiving section 34 38) is connected to the cooling water discharge pipe (not shown), and the nozzle 40 is connected to the compressed air pipe (not shown) so that the compressed air is drawn into the parison 3 inside.
상기 패리손(3) 내측으로 압축공기를 투여하여 패리손(3)의 성형이 완료된 때 헤더(5)부분 냉각을 실시하는 것으로서, 상기 헤더(5)의 냉각을 실시할 때 냉각수수용부(34)로 냉각수를 투입시키는 것이다. 상기 냉각수수용부(34)로 지속적인 냉각수 유입이 이루어지게 되면 노즐겸 중공형히트파이프(32)가 열전달되는 것이며, 상기 노즐겸 중공형히트파이프(32)의 헤더(5) 접촉부분에서 작동유체를 통해 헤더(5)의 열을 흡수하고, 상기 흡수된 열은 냉각수수용부(34)에서 냉각수와 열교환되면서 열을 전도하는 것이다.By cooling the header 5 when the molding of the parison 3 is completed by applying compressed air to the inside of the parison 3, the cooling water accommodating portion 34 is performed when the header 5 is cooled. ) Is to add coolant. When the continuous inlet of the coolant is introduced into the coolant accommodating part 34, the nozzle and the hollow heat pipe 32 are heat-transferred, and a working fluid is formed at the contact portion of the header 5 of the nozzle and the hollow heat pipe 32. Absorbs the heat of the header 5 through the heat absorbed heat is to conduct heat while the heat exchange with the cooling water in the cooling water receiving portion (34).
상기 노즐겸 중공형히트파이프(32)와 열교환된 냉각수는 유출구(38)를 통해서 배출되게 되므로써 냉각수수용부(34) 내부의 냉각수는 항상 저온상태로 유지되게 되고, 상기 냉각수와 작동유체의 열교환이 신속하게 이루어지게 되면서 헤더(5) 냉각이 적정하게 이루어지는 것이다.The coolant heat exchanged with the nozzle and hollow heat pipe 32 is discharged through the outlet 38 so that the coolant inside the coolant accommodating part 34 is always kept at a low temperature, and heat exchange between the coolant and the working fluid is performed. While being made quickly, the header 5 is cooled appropriately.
이상과 같이 본 발명은 금형의 패리손 헤더측으로 하우징과 노즐겸 중공형히트파이프 및 냉각수수용부로 구성된 냉각장치부재를 인서트시켜 사출금형 성형이 이루어지게 하는 것으서, 상기 패리손의 헤더 냉각이 냉각수와 작동유체를 통해 이루어짐에 따라 적정한 냉각이 이루어지는 것이다.As described above, the present invention inserts a cooling device member composed of a housing, a nozzle, a hollow heat pipe, and a cooling water accommodating part to the parison header side of the mold, so that injection mold molding is performed. Proper cooling is achieved through the working fluid.
또한 노즐겸 중공형히트파이프를 냉각장치부재에 형성하여 사용함에 따라 패리손 내측으로의 압축공기 유입이 간단하게 이루어지고, 상기 패리손의 헤더부분 냉각이 신속하게 이루어지는 것이다.In addition, as the nozzle and the hollow heat pipe are formed and used in the cooling device member, the compressed air is easily introduced into the parison, and the parison's header is quickly cooled.
그리고 하우징 내측으로 열교환홀을 형성하지 않아도 되어 제작 비용이 절감되고, 상기 열교홀이 존재하지 않음에 따라 유지보수 주기가 길어지게 되는 것이다. In addition, the manufacturing cost is reduced because the heat exchange hole is not formed inside the housing, and the maintenance cycle is lengthened as the thermal bridge hole does not exist.
도 1은 종래의 것의 개략도,1 is a schematic view of a conventional one,
도 2는 본 발명의 실시예의 개략도,2 is a schematic diagram of an embodiment of the present invention;
도 3은 본 발명의 실시예의 요부를 나타낸 사시도,3 is a perspective view showing the main parts of an embodiment of the present invention;
도 4는 본 발명의 실시예의 요부를 나타낸 단면도이다.4 is a cross-sectional view showing the main parts of an embodiment of the present invention.
<도면의 주요부분에 사용된 부호의 설명><Description of the code used in the main part of the drawing>
1: 금형 3: 패리손1: mold 3: parison
7: 냉각장치부재 30: 하우징7: cooling device member 30: housing
32: 노즐겸 중공형히트파이프 34: 냉각수수용부 32: nozzle and hollow heat pipe 34: cooling water receiving portion
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2003-0016715A KR100510578B1 (en) | 2003-03-18 | 2003-03-18 | Water type cooling device for injection mold cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0016715A KR100510578B1 (en) | 2003-03-18 | 2003-03-18 | Water type cooling device for injection mold cooling |
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| KR20-2003-0008002U Division KR200317465Y1 (en) | 2003-03-18 | 2003-03-18 | Water type cooling device for injection mold cooling |
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| KR100943967B1 (en) * | 2008-11-28 | 2010-02-26 | 김순기 | Cooling system for transformer |
| KR101384310B1 (en) * | 2013-05-20 | 2014-04-11 | 대진아이엠 주식회사 | Complex cooling device mold of injection molding |
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