KR970014985A - Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor - Google Patents

Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor Download PDF

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Publication number
KR970014985A
KR970014985A KR1019950032541A KR19950032541A KR970014985A KR 970014985 A KR970014985 A KR 970014985A KR 1019950032541 A KR1019950032541 A KR 1019950032541A KR 19950032541 A KR19950032541 A KR 19950032541A KR 970014985 A KR970014985 A KR 970014985A
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KR
South Korea
Prior art keywords
resin
molding
gates
pressure injection
injection molding
Prior art date
Application number
KR1019950032541A
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Korean (ko)
Inventor
이병진
Original Assignee
전성원
현대자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 전성원, 현대자동차 주식회사 filed Critical 전성원
Priority to KR1019950032541A priority Critical patent/KR970014985A/en
Publication of KR970014985A publication Critical patent/KR970014985A/en

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Abstract

본 발명은 성형공간부내로 공급되는 수지의 흐름 방향으로 일정하게 하여 경계선(weld line)의 발생을 방지하는 저압 사출 성형 방법 및 성형 금형 장치를 제공하는데 발명의 목적이 있으며, 이를 위한 사출 방법은 상,하 금형 사이의 성형 공간부에 연결된 복수개의 게이트를 통하여 합성수지를 공급하여 플라스틱 제품을 성형하는 성형 방법에 있어서, 상기 복수개의 게이트를 순차적으로 개방시켜 수지를 공급하므로써 상,하 금형 사이의 성형 공간부 내를 공급된 수지가 일방향으로 흐르도록 공급함을 특징으로 하며 동 방법을 수행하기 위한 장치의 구성은 상,하 금형과 수지 공급의 메인 통로인 런너와, 런너로부터 분기되어 상,하 금형 사이의 성형 공간부에 연결되어 수지를 공급하는 복수개의 게이트를 구비하는 저압사출 성형 금형 장치에 있어서, 상기 복수개의 게이트에는 각기 통로를 선택적으로 개페시킬 수 있는 개페 밸브가 구비되어 있음을 특징으로 한다.An object of the present invention is to provide a low pressure injection molding method and a molding die apparatus for preventing the generation of a weld line by making it constant in the flow direction of the resin supplied into the molding space. In the molding method of molding a plastic product by supplying a synthetic resin through a plurality of gates connected to the molding space between the lower mold, the molding space between the upper and lower molds by sequentially opening the plurality of gates to supply resin It is characterized in that the supplied resin flows in one direction so that the configuration of the apparatus for performing the method is a runner which is the main passage of the upper and lower molds and the resin supply, and branched from the runners between the upper and lower molds. In the low pressure injection molding die device having a plurality of gates connected to the molding space to supply the resin, The plurality of gates are each provided with an opening valve for selectively opening the passage.

Description

경계선(weld line)의 발생을 방지하는 저압사출 방법 및 그를 위한 사출성형 금형장치Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명 사출 장치의 일 실시예를 나타내는 개략도,1 is a schematic view showing an embodiment of the injection apparatus of the present invention,

제2도는 종래의 사출 성형 장치.2 is a conventional injection molding apparatus.

Claims (2)

상, 하 금형 사이의 성형 공간부에 연결된 복수개의 게이트를 통하여 합성수지를 공급하여 플라스틱 제품을 성형하는 성형 방법에 있어서, 상기 복수개의 게이트를 순차적으로 개방시켜 수지를 공급하므로써 상, 하 금형 사이의 성형 공간부 내를 수지가 일방향으로 흐르도록 공급함을 특징으로 하는 저압 사출 성형 방법.In a molding method of molding a plastic product by supplying a synthetic resin through a plurality of gates connected to the molding space between the upper and lower molds, molding between the upper and lower molds by sequentially opening the plurality of gates and supplying a resin. A low pressure injection molding method characterized by supplying the resin in the space so that the resin flows in one direction. 상, 하 금형과 수지 공급의 메인 통로인 런너와, 런너로부터 분기되어 상, 하 금형 사이의 성형 공간부에 연결되어 수지를 공급하는 복수개의 게이트를 구비하는 저압사출 성형 금형 장치에 있어서, 상기 복수개의 게이트에는 각기 통로를 선택적으로 개폐시킬 수 있는 개폐 밸브가 구비되어 있으므로써 상기 개폐밸브들을 순차적으로 개폐시켜 수지를 공급하게 되는 것임을 특징으로 하는 저압 사출 성형 금형 장치.In the low-pressure injection molding die apparatus having a runner which is a main passage for the upper and lower molds and the resin supply, and a plurality of gates branched from the runner and connected to the molding space between the upper and lower molds to supply the resin. The two gates are provided with an on-off valve for selectively opening and closing the respective passages, the low-pressure injection molding mold apparatus, characterized in that to open and close the on-off valves in order to supply the resin. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950032541A 1995-09-29 1995-09-29 Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor KR970014985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950032541A KR970014985A (en) 1995-09-29 1995-09-29 Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950032541A KR970014985A (en) 1995-09-29 1995-09-29 Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor

Publications (1)

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KR970014985A true KR970014985A (en) 1997-04-28

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KR1019950032541A KR970014985A (en) 1995-09-29 1995-09-29 Low pressure injection method for preventing generation of weld lines and injection molding apparatus therefor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020094537A (en) * 2001-06-12 2002-12-18 현대자동차주식회사 Control method of sequence valve for injection molding
KR100477068B1 (en) * 2002-02-19 2005-03-17 주식회사 하림 Manufacturing method of pannel for mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020094537A (en) * 2001-06-12 2002-12-18 현대자동차주식회사 Control method of sequence valve for injection molding
KR100477068B1 (en) * 2002-02-19 2005-03-17 주식회사 하림 Manufacturing method of pannel for mold

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