KR20020089291A - Hot Runner Valve System for molding Two colour plastic products - Google Patents

Hot Runner Valve System for molding Two colour plastic products Download PDF

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Publication number
KR20020089291A
KR20020089291A KR1020020069203A KR20020069203A KR20020089291A KR 20020089291 A KR20020089291 A KR 20020089291A KR 1020020069203 A KR1020020069203 A KR 1020020069203A KR 20020069203 A KR20020069203 A KR 20020069203A KR 20020089291 A KR20020089291 A KR 20020089291A
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KR
South Korea
Prior art keywords
hot runner
color
gate
runner valve
valve system
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Application number
KR1020020069203A
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Korean (ko)
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KR100542176B1 (en
Inventor
허남욱
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허남욱
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Priority to KR1020020069203A priority Critical patent/KR100542176B1/en
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted therefor
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted therefor
    • B29C2045/161—Multi-way nozzles specially adapted therefor using a hollow needle valve through which one material is injected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B29K2995/0021—Multi-coloured

Abstract

PURPOSE: A hot runner valve system is provided to prevent an article from being contaminated even when the article is formed by using synthetic resin having at least two color layers by preventing the color layers of the article from being mixed to each other. CONSTITUTION: First and second gates(1,2) are formed in a nozzle body. A sleeve pin(4) formed with a perforation hole communicated with the first gate(1) is positioned at an outer portion of a needle pin(3) of a hot runner valve such that the sleeve pin(4) moves up and down caused by the movement of a piston(10) which moves up and down while making contact with an outer peripheral portion of the nozzle body(9). In order to form a dichromatic plastic article by using the hot runner valve system, the needle pin(3) is firstly lifted up. Then, the sleeve pin(4) is moved down corresponding to a valve gate(5) such that the perforation hole is communicated with the first gate(1). Then, synthetic resin material is introduced into the valve gate(5) through the first gate(1) and the perforation hole, thereby forming the first plastic layer(6) having the first color. The second color is provided through the second gate(2) to form the second plastic layer(7) having the second color.

Description

이색(貳色) 플라스틱제품 성형용 핫런너 밸브 시스템{Hot Runner Valve System for molding Two colour plastic products}Hot Runner Valve System for molding Two color plastic products}

본 발명은 이색(貳色) 플라스틱 성형용 핫런너 밸브 시스템에 관한 것으로서, 특히 하나의 핫런너 밸브시스템에서 두가지 색상의 층으로 이루어진 플라스틱제품을 두가지 색이 혼합되지 않게 성형하는 핫런너 밸브 시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot runner valve system for molding two-color plastics, and more particularly, to a hot runner valve system for molding a plastic product having two color layers in one hot runner valve system without mixing the two colors. will be.

종래의 이색 플라스틱제품을 제조하는 핫런너 밸브로는 카나다 허스키(Hasky)사 제품으로서 도3에 도시된 바와같이 핫런너 밸브의 노즐바디 양측에 두개의 탕도를(100)(200) 그 하단이 상하로 엇갈리게 형성한 다음 중앙의 니들핀(300)을 승강시키면서 차례로 하나의 탕도는 열고 다른 하나의 탕도는 막은 다음 두색의 용융 합성수지를 차례로 공급하면서 이색 플라스틱층으로된 제품을 만들었으나 이러한 시스템에 의하여 플라스틱 제품을 성형하게되면 니들핀(300) 하나만의 승강에 의한 두개 탕도(100)(200)를 차례로 개폐하게되므로 탕도와 니들핀에 묻어 있는 상이한 색상의 합성수지가 혼합되어 제품이 혼합된 합성수지에 의해 불량해지는 폐단이 있었다.As a hot runner valve for manufacturing a conventional bi-color plastic product, manufactured by Husky, Canada, as shown in FIG. 3, two taps (100) and (200) at the bottom of the nozzle body of the hot runner valve are shown in FIG. Formed up and down alternately, while lifting the central needle pin 300, one tando was opened in turn, the other tandem was closed, and then two colored molten synthetic resins were supplied in order to make a product of a bi-colored plastic layer. When the plastic product is molded by the two pins 100 and 200 are opened and closed in turn by only elevating the needle pins 300, the synthetic resins of different colors buried in the ball and needle pins are mixed and the products are mixed. There was a defect caused by the synthetic resin.

본 발명은 상기한 바와같은 종래의 이색 플라스틱 제품 성형용 핫런너 밸브의 결점을 개선하여 이색 합성수지로 이색 플라스틱 제품을 성형하드라도 핫런너 밸브 시스템의 결점으로 인하여 두가지 색이 탕도에서 혼합되어 제품을 오염시키게되는 폐단이 없도록 플라스틱제품을 제조할 수 있는 이색 플라스틱제품 성형용 핫런너 밸브 시스템을 제공코저하는 것으로서 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention improves the shortcomings of the conventional hot runner valve for molding a bi-color plastic product as described above, even if the bi-color plastic product is molded with a dichroic synthetic resin, the two colors are mixed in the water bath due to a defect of the hot runner valve system. The present invention provides a hot runner valve system for molding a bi-color plastic product which can manufacture a plastic product so that there is no waste end to be contaminated, which will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명 핫런너 밸브의 전체 종단면도.1 is a longitudinal cross-sectional view of the hot runner valve of the present invention;

도 2(a) 는 플라스틱제품의 한가지 색상층 성형시의 밸브의 요부 종단면도.Figure 2 (a) is a longitudinal sectional view of the main portion of the valve when forming one color layer of a plastic product.

도 2(b) 는 플라스틱제품의 한가지 색상층 성형후의 니들핀을 닫았을 때의 밸브요부 종단면도.Figure 2 (b) is a longitudinal cross-sectional view of the valve main portion when the needle pin is closed after molding one color layer of a plastic product.

도 2(c) 는 플라스틱제품의 한가지 색상층 성형후의 다른 색상층 성형시의 밸브의 요부 종단면도.Fig. 2 (c) is a longitudinal sectional view of the main portion of the valve at the time of forming another color layer after molding one color layer of the plastic product.

도 2(d) 는 플라스틱제품의 두가지 색상층 성형후의 니들핀과 슬리브핀을 닫았을 때의 밸브 요부 종단면도.Fig. 2 (d) is a longitudinal sectional view of the main part of the valve when the needle pin and the sleeve pin are closed after molding two color layers of the plastic product.

도 3 은 종래 이색 플라스틱제품 성형용 핫런너 밸브 시스템의 종단면도.Figure 3 is a longitudinal cross-sectional view of a hot runner valve system for molding conventional bi-color plastic products.

*도면 중 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1,2 : 제1,2탕도3 : 니들핀1,2: 1st, 2nd tap 3: needle pin

4 : 슬리브핀5 : 밸브게이트4: sleeve pin 5: valve gate

6 : 한색 플라스틱 성형층7 : 다른색 플라스틱 성형층6: one color plastic molding layer 7: another color plastic molding layer

8 : 관통공9 : 노즐본체8 through hole 9: nozzle body

10 : 승강피스톤10: lifting piston

본 발명은 노즐바디(8)내의 핀홀 양측에 두개의 제1,2 탕도(1)(2)를 형성하고 노즐본체(9)외주면에 접하여 승강되는 승강피스톤(10)의 승강에 의해 승강되고 하단 일측에 제1탕도(1)와 관통되는 관통공(8)이 형성된 슬리브핀(4)을 기존의 핫런너 밸브의 니들핀(3)의 외주면에서 승강되도록 외삽한 것으로 구성됨을 특징으로하는 이색(貳色) 플라스틱제품 성형용 핫런너 밸브 시스템이다.The present invention is lifted by the lifting of the lifting piston (10) which is formed in the nozzle body (8) on both sides of the pinholes (1) and (2) the first water flow (1) (2) and is in contact with the outer peripheral surface of the nozzle body (9) It characterized in that it is configured to extrapolate the sleeve pin (4) formed with the through-hole (8) through which the first hot water (1) and the through-hole 1 is lowered on the outer circumferential surface of the needle pin (3) of the existing hot runner valve Hot runner valve system for molding different-color plastic products.

이상과 같은 본 발명 핫런너 밸브 시스템으로 2색 플라스틱제품을 성형하려면 먼저 통상의 니들핀(3)을 상승시킨 다음 슬리브핀(4)을 노즐본체(9)의 외주면에 외삽된 승강피스톤(10)에 의해 밸브 게이트(5)까지 하강시켜 슬리브핀 하단측면에 형성된 관통공(8)이 제1탕도(1)와 관통되게한 상태에서 제일 색상의 합성수지원료를 제1탕도(1)를 통하여 슬리브핀 하단 관통공(8)을 거쳐 밸브게이트(5)로 흘러들어 가게하여 제일색상의 플라스틱층(6)이 성형되게한 다음 니들핀(3)을 하강시켜 밸브게이트(5)를 막았다가 니들핀(3)과 슬리브핀(4)을 동시에 상승시켜 제1탕도(1)는 니들핀(3)과 슬리브핀(4)에 의해 막히게하면서 제2탕도(2)만 열리도록하여 제2색상을 제2탕도를 통하여 공급하므로서 제2색상의 플라스틱층(7)을 성형하도록하여 두가지 색상층의 플라스틱 제품을 얻을 수 있는 것이다.To form a two-color plastic product with the present invention hot runner valve system as described above, first, the general needle pin 3 is raised, and then the lifting pin 10 with the sleeve pin 4 extrapolated to the outer circumferential surface of the nozzle body 9. The synthetic water support material of the highest color was passed through the first tap water 1 while the through-hole 8 formed on the lower end side of the sleeve pin was penetrated to the valve gate 5 by the first tap water 1. It flows into the valve gate 5 through the sleeve pin bottom through hole 8 so that the plastic layer 6 of the highest color is formed, and then the needle pin 3 is lowered to block the valve gate 5. The pin 3 and the sleeve pin 4 are simultaneously raised so that the first tap 1 is blocked by the needle pin 3 and the sleeve pin 4 so that only the second tap 2 is opened. Plastic products of two color layers by molding the second color plastic layer 7 while supplying the color through the second tap water You can get.

본 발명 이색 플라스틱제품 성형용 핫런너 밸브 시스템은 이것을 이용하여 이색층의 플라스틱제품을 성형하게되면 그 밸브시스템에 니들핀(3)과 슬리브핀(4)이 이중으로 장착되어 용융 합성수지의 공급 차단을 정확하게 할 수 있으므로 두가지 색상의 합성수지가 혼합되지 않기 때문에 두가지 색상층이 선명하게 이색 제품을 얻을 수 있는 효과가 있다.When the hot runner valve system for molding a bi-color plastic product of the present invention forms a plastic product of a bi-layer using this, a needle pin 3 and a sleeve pin 4 are doublely mounted on the valve system to block the supply of molten synthetic resin. Since it is possible to do it precisely, the resin of two colors is not mixed, so the two color layers have a clear effect of obtaining a dichroic product.

Claims (1)

노즐바디(8)내의 핀홀 양측에 두개의 제1,2 탕도(1)(2)를 형성하고 노즐본체(9)외주면에 접하여 승강되는 승강피스톤(10)의 승강에 의해 승강되고 하단 일측에 제1탕도(1)와 관통되는 관통공(8)이 형성된 슬리브핀(4)을 기존의 핫런너 밸브의 니들핀(3)의 외주면에서 승강되도록 외삽한 것으로 구성됨을 특징으로하는 이색(貳色) 플라스틱제품 성형용 핫런너 밸브 시스템.Two first and second troughs 1 and 2 are formed on both sides of the pinhole in the nozzle body 8, and the elevating piston 10 lifts up and down by contacting the outer circumferential surface of the nozzle body 9. It is characterized in that the extrapolation of the sleeve fin (4) formed with the through-hole (8) through which the first hot water (1) is extrapolated so as to be elevated on the outer circumferential surface of the needle pin (3) of the existing hot runner valve色) Hot runner valve system for molding plastic products.
KR1020020069203A 2002-11-08 2002-11-08 Hot Runner Valve Nozzle for molding Two Colour Plastics KR100542176B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020020069203A KR100542176B1 (en) 2002-11-08 2002-11-08 Hot Runner Valve Nozzle for molding Two Colour Plastics

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KR100542176B1 KR100542176B1 (en) 2006-01-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160001061A (en) * 2014-06-26 2016-01-06 핫몰드 엔지니어링주식회사 The nozzle locate of hot runner injection molding to change coller

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101433050B1 (en) 2014-06-26 2014-08-25 핫몰드 엔지니어링주식회사 The cylinder of hot runner injection molding to change coller
KR101470403B1 (en) 2014-06-26 2014-12-12 핫몰드 엔지니어링주식회사 The hot runner injection molding that can easily change coller
KR102399584B1 (en) * 2020-10-12 2022-05-19 주식회사 유도 Hot runner system for double injection

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Publication number Priority date Publication date Assignee Title
JPH0227312A (en) * 1988-07-18 1990-01-30 Dainippon Screen Mfg Co Ltd Image scanning recorder
JP3002812B2 (en) * 1996-04-30 2000-01-24 日精樹脂工業株式会社 Nozzle device and injection method for injection molding machine
JPH10156883A (en) * 1996-11-29 1998-06-16 Ube Ind Ltd Manufacture of sandwich molding and mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160001061A (en) * 2014-06-26 2016-01-06 핫몰드 엔지니어링주식회사 The nozzle locate of hot runner injection molding to change coller

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