KR100503700B1 - forming die - Google Patents
forming die Download PDFInfo
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- KR100503700B1 KR100503700B1 KR10-2002-0038594A KR20020038594A KR100503700B1 KR 100503700 B1 KR100503700 B1 KR 100503700B1 KR 20020038594 A KR20020038594 A KR 20020038594A KR 100503700 B1 KR100503700 B1 KR 100503700B1
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- South Korea
- Prior art keywords
- mold
- cavity
- steam
- workpiece
- molding
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
- B29C33/048—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam using steam
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
본 발명은 제품의 성형성이 향상될 수 있도록 된 새로운 구조의 성형용 금형에 관한 것이다.The present invention relates to a mold for molding of a new structure, such that the moldability of the product can be improved.
본 발명에 따르면, 내부에 가열수단이 구비된 상하부 금형의 캐비티에 판재 또는 시트 형태의 피가공물을 위치시켜 가열 가압에 의해 원하는 형상으로 성형시키는 성형용 금형에 있어서, 상기 상하부 금형 중 적어도 하나의 내부에는 캐비티로 연통되는 스팀주입공이 다수개 형성되고, 이 스팀주입공에는 스팀공급수단이 연결되어 상기 캐비티의 내부로 스팀을 분사하여 피가공물을 고르게 가열할 수 있도록 된 것을 특징으로 하는 성형용 금형이 제공된다.According to the present invention, in the mold for forming a workpiece in the form of a plate or sheet in a cavity of the upper and lower molds provided with a heating means therein and forming a desired shape by heating and pressing, wherein at least one of the upper and lower molds There are formed a plurality of steam injection holes communicating with the cavity, the steam injection hole is connected to the steam supply means is a molding die, characterized in that to spray the steam into the cavity to heat the workpiece evenly Is provided.
Description
본 발명은 성형용 금형에 관한 것으로서, 보다 상세하게는 제품의 성형성이 향상될 수 있도록 된 새로운 구조의 성형용 금형에 관한 것이다.The present invention relates to a mold for molding, and more particularly, to a mold for molding of a new structure that can improve the moldability of the product.
자동차 패널용 성형금형은 차량의 도어 내측패널이나 실내 헤드라이너 등의 마감재를 성형하는 금형으로서, 도 1 에 도시된 바와 같이, 패널용 성형금형은 프레스의 베드에 장착되며 상부에 소정형상의 캐비티(11)가 형성된 하부 금형(10)과, 프레스의 슬라이드에 장착되며 저면에 소정의 코어(21)가 형성된 상부 금형(20)으로 구성되며, 이 상하부 금형(10,20)의 캐비티(11)와 코어(21) 내측에는 전기히터인 판히터(30)가 성형면을 따라 소정간격 이격되게 복수개 구비되어 금형(10,20)의 작동에 따라 소재를 가열 압착하여 원하는 형상으로 성형할 수 있도록 구성된다. The molding die for an automobile panel is a mold for molding a finishing material such as a door inner panel of a vehicle, an interior headliner, and the like. As shown in FIG. 1, the molding die for a panel is mounted on a bed of a press, and has a predetermined shape cavity ( 11 is formed of a lower mold 10, and the upper mold 20 is mounted on the slide of the press and a predetermined core 21 is formed on the bottom surface, the cavity 11 of the upper and lower molds (10, 20) and Inside the core 21, a plurality of plate heaters 30, which are electric heaters, are provided to be spaced apart by a predetermined distance along the molding surface, and are configured to form a desired shape by heating and compressing the raw materials according to the operations of the molds 10 and 20. .
따라서, 차량의 패널용으로 사용되는 흡음제의 레진펠트와 부직포 등을 서로 포갠상태에서 상기 하부 금형(10)의 케비티(11) 상측에 올려놓은 후 상부 금형(20)을 하강시켜 소재를 가열 압착하여 소정형상으로 성형하게 된다.Therefore, the resin felt and the nonwoven fabric of the sound absorbing agent used for the panel of the vehicle are placed on the cavity 11 upper side of the lower mold 10 in a state of being stacked with each other, and then the upper mold 20 is lowered to heat-press the material. To be molded into a predetermined shape.
미설명 부호 12는 금형내의 압력을 제거하기 위한 에어밴트이다.Reference numeral 12 is an air vent for removing pressure in the mold.
그런데, 이러한 종래의 패널용 성형금형은 제품의 형상에 따라 굴곡이 있는 부분의 금형 내부에는 판히터(30)를 설치하기 곤란하여 평면부분만 판히터(30)를 설치하게 된다. 따라서, 이러한 성형금형은 판히터(30)가 설치된 부분만 집중가열되므로, 판히터(30)가 설치되지 않은 부분에는 소재가 필요한 온도로 가열되지 못하므로, 이 부분에는 용융이 잘 되질않아 원하는 형상으로 성형되지 않고 균열이 발생하여 강도가 떨어지는 문제점이 있으며, 특히, 굴곡부분에는 심하게 주름이 발생하는 문제점이 있다.However, in the conventional mold for panel molding, it is difficult to install the plate heater 30 inside the mold of the curved portion according to the shape of the product, so that only the flat portion of the panel heater 30 is installed. Therefore, such a molding mold is concentrated heating only the portion where the plate heater 30 is installed, since the material is not heated to the required temperature in the portion where the plate heater 30 is not installed, the desired shape does not melt well in this portion There is a problem in that the strength is lowered due to the crack is generated without being molded, in particular, there is a problem that the wrinkles are badly generated.
본 발명은 상기의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 제품의 강도를 향상시킴은 물론 주름이 발생하는 것을 방지하면서 성형성 향상시킬 수 있도록 된 새로운 구조의 성형용 금형을 제공하기 위한 것이다. The present invention is to solve the above problems, an object of the present invention is to provide a mold for molding of a new structure that can improve the formability while preventing the occurrence of wrinkles as well as improving the strength of the product. .
본 발명에 따르면, 내부에 가열수단이 구비된 상하부 금형의 캐비티에 판재 또는 시트 형태의 피가공물을 위치시켜 가열 가압에 의해 원하는 형상으로 성형시키는 성형용 금형에 있어서, 상기 상하부 금형 중 적어도 하나의 내부에는 캐비티로 연통되는 스팀주입공이 다수개 형성되고, 이 스팀주입공에는 스팀공급수단이 연결되어 상기 캐비티의 내부로 스팀을 분사하여 피가공물을 고르게 가열할 수 있도록 된 것을 특징으로 하는 성형용 금형이 제공된다.According to the present invention, in the mold for forming a workpiece in the form of a plate or sheet in a cavity of the upper and lower molds provided with a heating means therein and forming a desired shape by heating and pressing, wherein at least one of the upper and lower molds There are formed a plurality of steam injection holes communicating with the cavity, the steam injection hole is connected to the steam supply means is a molding die, characterized in that to spray the steam into the cavity to heat the workpiece evenly Is provided.
이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다. 도 2 내지 도 4는 본 발명에 따른 실시예를 도시한 것으로, 이를 참조하면, 성형용 금형은 프레스의 슬라이드에 장착되며 저면에 소정의 코어(21)가 형성된 상부 금형(20)과, 프레스의 베드에 장착되며 상부에 소정형상의 캐비티(11)가 형성된 하부 금형(10)으로 구성된다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 2 to 4 illustrate an embodiment according to the present invention. Referring to this, the molding die is mounted on a slide of a press and has an upper mold 20 having a predetermined core 21 formed on a bottom thereof. The lower mold 10 is mounted on the bed and has a cavity 11 having a predetermined shape thereon.
상기 상부 금형(20) 내부에는 전후방향으로 소정간격 이격되도록 수평관통된 유로(23)가 서로 연통되도록 구성된다. 상기 하부 금형(10)의 내부에는 상기 상부 금형(20)과 유사하게 전후방향으로 소정간격 이격되도록 수평관통된 유로(13)가 서로 연통되도록 형성된다. Inside the upper mold 20 is configured to communicate with each other the horizontal passage flow path 23 to be spaced apart a predetermined interval in the front and rear direction. Similarly to the upper mold 20, the lower mold 10 is formed such that horizontal passages 13 communicate with each other so as to be spaced apart from each other in the front-rear direction by a predetermined interval.
따라서, 오일가열수단(60)으로 부터 가열 공급된 오일은 상기 유로(13,23)를 통해 금형(10,20) 내부로 유입되어 금형을 일정온도 이상으로 가열하여 피가공물을 원하는 형상으로 가열 압착하여 성형할 수 있도록 구성된다. Therefore, the oil supplied from the oil heating means 60 is supplied into the molds 10 and 20 through the flow paths 13 and 23 to heat the mold to a predetermined temperature or more, and heat-presses the workpiece to a desired shape. It is configured to be molded by.
한편, 상기 하부 금형(10)의 내부에는 캐비티(11)로 연통되도록 다수개의 스팀공급공(40)이 형성되며, 이 스팀공급공(40)은 보일러 등의 스팀공급수단(50)의 관로와 연결된다.Meanwhile, a plurality of steam supply holes 40 are formed in the lower mold 10 so as to communicate with the cavity 11, and the steam supply holes 40 are connected to a pipe of a steam supply means 50 such as a boiler. Connected.
따라서, 스팀공급수단(50)에서 공급된 대략 180℃의 고온고압의 스팀이 스팀공급공(40)을 통해 캐비티(11) 내부로 분사되어 피가공물을 전체적으로 고르게 가열함과 더블어 제품분리시 캐비티(11) 내부의 진공압력을 해제하기 위한 수단으로 사용된다.Therefore, the steam of the high temperature and high pressure of about 180 ° C. supplied from the steam supply means 50 is injected into the cavity 11 through the steam supply hole 40 to evenly heat the workpiece as a whole and to remove the product. 11) It is used as a means to release the internal vacuum pressure.
이러한 구성에 따르면, 오일가열수단(60)에서 공급된 고온의 오일을 상기 상하부 금형(10,20) 내부로 유입시켜 금형(10,20)을 일정온도로 가열한 후 상기 하부 금형(10)의 캐비티(11) 상측에 피가공물을 올려놓은 상태에서 상부 금형(20)을 하부 금형(10)과 합형하여 열압착시킴과 동시에 하부 금형(10)에 스팀공급공(40)을 통해 캐비티(11) 내부로 고온고압의 스팀을 분사시키면 캐비티(11) 내부의 온도가 스팀에 의해 고르게 가열되여 피가공물을 용융시켜 원하는 형상으로 성형함은 물론 제품의 강도를 높이게 된다. 또한, 제품의 굴곡부분에도 이 스팀에 의해 피가공물의 표면을 용융시켜 주름이 발생하지않게 성형할 수 있는 장점이 있다.According to this configuration, the high temperature oil supplied from the oil heating means 60 is introduced into the upper and lower molds 10 and 20 to heat the molds 10 and 20 to a predetermined temperature, and then the lower mold 10 In the state in which the workpiece is placed on the cavity 11, the upper mold 20 is combined with the lower mold 10 to be thermocompressed, and at the same time, the cavity 11 is provided through the steam supply hole 40 in the lower mold 10. When the high temperature and high pressure steam is injected into the inside, the temperature inside the cavity 11 is evenly heated by the steam to melt the workpiece, forming the desired shape as well as increasing the strength of the product. In addition, there is an advantage in that the bent portion of the product by melting the surface of the workpiece by the steam can be molded without wrinkles.
도시된 실시예에서는 하부 금형(20)에 스팀공급공(40)을 형성하였으나, 상부 금형 또는 상하부 금형에 모두 형성할 수도 있다.In the illustrated embodiment, the steam supply hole 40 is formed in the lower mold 20, but may be formed in both the upper mold or the upper and lower molds.
이상에서와 같이 본 발명에 의하면, 캐비티 내부로 고온고압의 스팀을 공급하게 되면 캐비티 내부의 온도가 균일하게 유지되어 원하는 형상으로 제품을 성형할 수 있음은 물론 피가공물을 균일하게 용용시켜 성형하므로 제품의 강도를 향상시킬 수 있으며, 제품 표면에 스팀이 분사되어 이 스팀에 의해 제품표면에 용융이 잘되어 굴곡부분에도 주름이 발생하지 않게 성형이 잘되어 외관이 미려한 장점이 있다.As described above, according to the present invention, when the high temperature and high pressure steam is supplied into the cavity, the temperature inside the cavity is maintained uniformly so that the product can be molded into a desired shape, and the workpiece can be melted uniformly to form the product. It is possible to improve the strength of the product, the steam is sprayed on the surface of the product by the steam is melted on the surface of the product is well molded so that the appearance of the appearance is not wrinkles well.
도 1은 종래의 성형용 금형을 도시한 구성도1 is a configuration diagram showing a conventional molding die
도 2는 본 발명에 따른 성형용 금형을 도시한 구성도Figure 2 is a block diagram showing a molding die according to the present invention
도 3은 본 발명에 따른 하부 금형의 평면도3 is a plan view of a lower mold according to the present invention;
도 4는 본 발명에 따른 상부 금형의 저면도4 is a bottom view of the upper mold according to the present invention;
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10. 하부 금형 11. 캐비티10. Lower mold 11. Cavity
20. 상부 금형 21. 코어20. Upper mold 21. Core
30. 판히터 40. 스팀주입공30. Plate heater 40. Steam injection hole
50. 스팀공급수단 60. 오일가열수단50. Steam supply means 60. Oil heating means
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KR10-2002-0038594A KR100503700B1 (en) | 2002-07-04 | 2002-07-04 | forming die |
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KR10-2002-0038594A KR100503700B1 (en) | 2002-07-04 | 2002-07-04 | forming die |
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KR100503700B1 true KR100503700B1 (en) | 2005-07-25 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11105055A (en) * | 1997-10-03 | 1999-04-20 | Mitsubishi Kagaku Basf Kk | Germ-free transportation container, method and apparatus for manufacturing it |
JP2001287234A (en) * | 2000-02-01 | 2001-10-16 | Daisen Kogyo:Kk | Method and apparatus for molding cellular composite molding and the molding obtained by the method |
JP2002036276A (en) * | 2000-07-25 | 2002-02-05 | Daisen Kogyo:Kk | Apparatus and method for molding composite foamed molding as well as composite foamed molding obtained by this method |
JP2002187155A (en) * | 2000-12-19 | 2002-07-02 | Daisen Kogyo:Kk | Cooling method in expansion molding |
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2002
- 2002-07-04 KR KR10-2002-0038594A patent/KR100503700B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11105055A (en) * | 1997-10-03 | 1999-04-20 | Mitsubishi Kagaku Basf Kk | Germ-free transportation container, method and apparatus for manufacturing it |
JP2001287234A (en) * | 2000-02-01 | 2001-10-16 | Daisen Kogyo:Kk | Method and apparatus for molding cellular composite molding and the molding obtained by the method |
JP2002036276A (en) * | 2000-07-25 | 2002-02-05 | Daisen Kogyo:Kk | Apparatus and method for molding composite foamed molding as well as composite foamed molding obtained by this method |
JP2002187155A (en) * | 2000-12-19 | 2002-07-02 | Daisen Kogyo:Kk | Cooling method in expansion molding |
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