KR19980044754A - Injection Molding Method for Bumper Back Beam - Google Patents
Injection Molding Method for Bumper Back Beam Download PDFInfo
- Publication number
- KR19980044754A KR19980044754A KR1019960062879A KR19960062879A KR19980044754A KR 19980044754 A KR19980044754 A KR 19980044754A KR 1019960062879 A KR1019960062879 A KR 1019960062879A KR 19960062879 A KR19960062879 A KR 19960062879A KR 19980044754 A KR19980044754 A KR 19980044754A
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- South Korea
- Prior art keywords
- injection
- injecting
- plastic
- back beam
- nozzle
- Prior art date
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명의 목적은 생산성이 향상되고 정밀 사출이 가능하여 2차 가공이 생략되고 재료가 적게드는 범퍼 백 빔용 사출 성형 제작 방법을 제공하는 데 있다.An object of the present invention is to provide an injection molding manufacturing method for a bumper back beam in which productivity is improved and precision injection is possible, so that secondary processing is omitted and materials are reduced.
상기한 목적을 달성하기 위한 본 발명은 내부에 성형실을 갖는 상하 한쌍의 금형속에 노즐을 통해 플라스틱을 주입하는 단계와;The present invention for achieving the above object comprises the steps of injecting plastic through the nozzle in the upper and lower pair of mold having a molding chamber therein;
상기 플라스틱을 주입하는 초기부터 상기 노즐의 코어부를 통해 고압의 질소(N2)가스를 주입하는 단계와;Injecting high pressure nitrogen (N 2 ) gas through a core of the nozzle from an initial stage of injecting the plastic;
상기 플라스틱 재료의 주입이 끝나기 직전에 질소가스의 공급을 중단하고 제품을 완성하는 단계와; 로 이루어지는 것을 특징으로 한다.Stopping supply of nitrogen gas and completing the product immediately before the injection of the plastic material is finished; Characterized in that consists of.
Description
본 발명은 범퍼 백 빔 (Bumper back beam)용 사출 성형 제작 방법에 관한 것이다.The present invention relates to an injection molding manufacturing method for a bumper back beam.
종래 속이 빈 범퍼 백 빔 은 플라스틱 재질을 사용하여 블로우 몰딩으로 성형하고 있다.Conventionally, the hollow bumper back beam is molded by blow molding using a plastic material.
그러나 블로우 몰딩에 의한 성형에 의하면 재료 투입량이 많고 성형 시간이 길어지며 칫수가 불안정하여 2차 가공이 필요한 문제점이 지적되고 있다.However, the molding by blow molding has been pointed out a problem that the secondary processing is required due to the large amount of material input, the long molding time and the unstable dimensions.
이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는Accordingly, the present invention has been proposed in view of the above problems, and has as its object
생산성이 향상되고 정밀사출이 가능하여 2차 가공이 생략되고 재료가 적게드는 범퍼 백 빔용 사출 성형 제작 방법을 제공하는 데 있다.The present invention provides an injection molding manufacturing method for a bumper back beam in which productivity is improved and precision injection is possible, thus eliminating secondary processing and reducing materials.
상기한 목적을 달성하기 위한 본 발명은The present invention for achieving the above object
내부에 성형실을 갖는 상하 한쌍의 금형속에 노즐을 통해 플라스틱을 주입하는 단계와;Injecting plastic through a nozzle into a pair of upper and lower molds having a molding chamber therein;
상기 플라스틱을 주입하는 초기부터 상기 노즐의 코어부를 통해 고압의 질소(N2)가스를 주입하는 단계와;Injecting high pressure nitrogen (N 2 ) gas through a core of the nozzle from an initial stage of injecting the plastic;
상기 플라스틱 재료의 주입이 끝나기 직전에 질소가스의 공급을 중단하고 제품을 완성하는 단계와; 로 이루어지는 것을 특징으로 한다.Stopping supply of nitrogen gas and completing the product immediately before the injection of the plastic material is finished; Characterized in that consists of.
도 1 은 본 발명에 의한 범퍼 백 빔용 사출 성형 장치를 나타내는 도면1 shows an injection molding apparatus for a bumper back beam according to the present invention.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
1,2 : 상하금형 3 : 성형실1,2: upper and lower mold 3: molding chamber
4 : 주입구 5 : 노즐(플라스틱 용융물주입용)4: injection hole 5: nozzle (for injection of plastic melt)
6 : 분사노즐(질소가스주입용) 7 : 범퍼 백 빔6: injection nozzle (for nitrogen gas injection) 7: bumper back beam
8 : 공동부8: joint
이하 본 발명의 실시예를 첨부한 도면을 참조하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
도 1 은 본 발명에 의한 범퍼 백 빔용 사출 성형 장치를 나타내는 도면으로 도면중 부호 1과 2는 한쌍의 상ㆍ하금형이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an injection molding apparatus for a bumper back beam according to the present invention, in which 1 and 2 are a pair of upper and lower dies.
상ㆍ하금형(1)(2)의 내부 성형실(3)에는 일측금형(1)의 주입구(4)에 접속된 노즐(5)을 통하여 플라스틱 용융물이 주입된다.The plastic melt is injected into the internal molding chamber 3 of the upper and lower molds 1 and 2 through the nozzle 5 connected to the injection port 4 of the one side mold 1.
플라스틱 용융물의 공급이 시작되면 상기 노즐(5)의 코어부에 설치되는 분사 노즐(6)을 통해 고압의 질소(N2)가스를 성형실(3)내에 분사 공급한다.When the supply of the plastic melt is started, the high pressure nitrogen (N 2 ) gas is injected into the forming chamber 3 through the injection nozzle 6 installed in the core of the nozzle 5.
질소가스가 공급되면 플라스틱 범퍼 백 빔(7) 내부에 공동부(8)를 만들면서 일정 두께로 성형되어지게 되며 플라스틱 재료의 공급 말기 직전에 질소가스의 공급을 차단하고 제품의 성형을 완성하게 된다.When nitrogen gas is supplied, it is molded to a certain thickness while making the cavity 8 inside the plastic bumper back beam 7, and shuts off the supply of nitrogen gas just before the end of the plastic material supply and completes the molding of the product. .
이상과 같은 본 발명에 의하면 플라스틱 용융물을 금형의 성형실내에 주입하는 초기 단계에 고압의 질소가스를 성형실내에 분사하다가 플라스틱 재료의 공급 말기에 질소가스의 공급을 차단하고 굳히기 성형을 하여 범퍼 백 빔을 제조하므로써 제품의 두께가 고르고 고압의 질소가스의 공급으로 재료가 압축되어 강도가 증대되며 제품 내부의 공동화로 재료의 절감이 가능하고 후가공이 생략되어 생산성이 향상되는 효과가 있다.According to the present invention as described above the bumper back beam by injecting a high-pressure nitrogen gas into the molding chamber in the initial stage of injecting the plastic melt into the molding chamber of the mold, blocking the supply of nitrogen gas at the end of the supply of the plastic material and hardening By manufacturing the product, the thickness of the product is uniform and the material is compressed by the supply of nitrogen gas at high pressure, and the strength is increased.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960062879A KR19980044754A (en) | 1996-12-07 | 1996-12-07 | Injection Molding Method for Bumper Back Beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960062879A KR19980044754A (en) | 1996-12-07 | 1996-12-07 | Injection Molding Method for Bumper Back Beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980044754A true KR19980044754A (en) | 1998-09-05 |
Family
ID=66519096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960062879A KR19980044754A (en) | 1996-12-07 | 1996-12-07 | Injection Molding Method for Bumper Back Beam |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980044754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446601B1 (en) * | 2001-06-27 | 2004-09-04 | 박성태 | Injection molding of resinoids thereof |
-
1996
- 1996-12-07 KR KR1019960062879A patent/KR19980044754A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100446601B1 (en) * | 2001-06-27 | 2004-09-04 | 박성태 | Injection molding of resinoids thereof |
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