KR100542176B1 - Hot Runner Valve Nozzle for molding Two Colour Plastics - Google Patents

Hot Runner Valve Nozzle for molding Two Colour Plastics Download PDF

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Publication number
KR100542176B1
KR100542176B1 KR1020020069203A KR20020069203A KR100542176B1 KR 100542176 B1 KR100542176 B1 KR 100542176B1 KR 1020020069203 A KR1020020069203 A KR 1020020069203A KR 20020069203 A KR20020069203 A KR 20020069203A KR 100542176 B1 KR100542176 B1 KR 100542176B1
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South Korea
Prior art keywords
pin
color
circumferential surface
outer circumferential
needle pin
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KR1020020069203A
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Korean (ko)
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KR20020089291A (en
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허남욱
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허남욱
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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
    • 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

노즐바디(9)내의 핀홀 양측에 두개의 제1,2탕도(1)(2)를 형성하고, 상기 노즐바디(9) 외주면에는 그 외주면에 접하여 승강되는 승강피스톤(10)을 장착하며, 핀홀내의 니들핀(3)의 외주면에는 하부 일측에 제1탕도(1)와 관통되는 관통공(8)이 형성되고 그 하단은 니들핀(3)에의해 개폐되는 개폐공(5')이 형성된 것으로 구성된 슬리브핀(4)을 상기 니들핀(3)의 외주면에서 상기 승강피스톤(10)에 의해 승강되도록 외삽한 것으로 구성된 이색(貳色) 플라스틱제품 성형용 핫런너 밸브노즐로서, 2색 플라스틱제품을 성형하려면 먼저 통상의 니들핀(3)을 상승시킨 다음 슬리브핀(4)을 노즐바디(9)의 외주면에 외삽된 승강피스톤(10)에 의해 밸브게이트(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 제일색상의 플라스틱층(6)이 성형되게한 다음 니들핀(3)을 하강시켜 밸브게이트(5)를 막은 후 니들핀(3)과 슬리브핀(4)을 동시에 상승시켜 제1탕도(1)는 니들핀(3)과 슬리브핀(4)에 의해 막히면서 제2탕도(2)만 열리도록하여 제2색상의 합성수지를 제2탕도를 통하여 공급하므로서 제2색상의 플라스틱층(7)으로된 두가지 색상층의 플라스틱 제품을 얻을 수 있는 것이다.Two first and second waterways (1) and (2) are formed on both sides of the pinhole in the nozzle body (9), and the elevating piston (10) which is raised and lowered in contact with the outer circumferential surface is mounted on the outer circumferential surface of the nozzle body (9). On the outer circumferential surface of the needle pin (3) in the pinhole is formed a through hole (8) penetrating through the first water supply (1) on one side of the lower end and the opening and closing hole (5 ') that is opened and closed by the needle pin (3) A hot-runner valve nozzle for molding a bi-color plastic product consisting of an extrapolated sleeve pin 4 composed of formed body to be lifted by the lifting piston 10 on the outer circumferential surface of the needle pin 3, the two-color plastic To mold the product, first, the general needle pin 3 is raised, and then the sleeve pin 4 is lowered to the valve gate 5 by the lifting piston 10 extrapolated to the outer circumferential surface of the nozzle body 9 to lower the sleeve pin. In the state where the through hole 8 formed on the side is penetrated with the first tap water 1, 1 flows into the valve gate 5 through the sleeve pin bottom through-hole 8 through the water bath 1 so that the plastic layer 6 of the highest color is formed, and then the needle pin 3 is lowered to lower the valve gate ( 5) After closing the needle pin (3) and sleeve pin (4) at the same time, the first tap water (1) is blocked by the needle pin (3) and the sleeve pin (4) while only the second tap water (2) It is possible to obtain a plastic product of two color layers made of the plastic layer 7 of the second color by supplying the synthetic resin of the second color through the second water supply.

Description

이색(貳色) 플라스틱제품 성형용 핫런너 밸브노즐{Hot Runner Valve Nozzle for molding Two Colour Plastics}Hot Runner Valve Nozzle for molding Two Color Plastics}

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 밸브의 요부 종단면도.Figure 2 (b) is a longitudinal sectional view of the main part of the valve when the needle pin is closed after molding one color layer of the 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 밸브노즐의 종단면도.Figure 3 is a longitudinal sectional view of a hot runner valve nozzle 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 : 제1,2탕도 3 : 니들핀1,2: 1st, 2nd tap 3: needle pin

4 : 슬리브핀 5 : 밸브게이트4: Sleeve Pin 5: Valve Gate

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

8 : 관통공 9 : 노즐바디8 through hole 9: nozzle body

10 : 승강피스톤10: lifting piston

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

종래의 이색 플라스틱제품을 제조하는 핫런너 밸브노즐로는 카나다 허스키(Hasky)사 제품으로서 도3에 도시된 바와같이 핫런너 밸브의 노즐바디 양측에 두개의 탕도(100)(200)를 그 하단이 상하로 엇갈리게 형성한 다음 중앙의 니들핀(300)을 승강시키면서 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) 하나만을 승강시켜 두개의 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 nozzle for manufacturing a conventional bi-color plastic product, manufactured by Hasky, Canada, as shown in FIG. 3, two taps 100 and 200 are disposed on both sides of the nozzle body of the hot runner valve. After forming the staggered up and down, while lifting the central needle pin (300), while opening one of the tapping water and blocking the other one and then supplying two colors of molten synthetic resin in order to make a product of a two-color plastic layer, but such a system When molding the plastic product by lifting only one needle pin (300) to open and close the two waterways (100, 200) in turn, so that the mixed color of the resin mixed in the ball and needle pins mixed product There was a defect caused by the synthetic resin.

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

본 발명은 노즐바디(9)내의 핀홀 양측에 두개의 제1,2 탕도(1)(2)를 형성하고, 상기 노즐바디(9) 외주면에는 그 외주면에 접하여 승강되게 승강피스톤(10)을 장착하며, 핀홀내의 니들핀(3)의 외주면에는 하부 일측에 제1탕도(1)와 관통되는 관통공(8)이 형성되고 그 하단은 니들핀(3)에 의해 개폐되는 밸브게이트대용 개폐공(5')이 형성된 것으로 구성된 슬리브핀(4)을 상기 니들핀(3) 외주면에서 상기 승강피스톤(10)에 의해 승강되도록 외삽한 것으로 구성됨을 특징으로하는 이색(貳色) 플라스틱제품 성형용 핫런너 밸브노즐이다.The present invention forms two first and second waterways (1) and (2) on both sides of the pinhole in the nozzle body (9), and the elevating piston (10) is raised and lowered on the outer circumferential surface of the nozzle body (9). On the outer circumferential surface of the needle pin (3) in the pinhole, a through hole (8) penetrating through the first tap water (1) is formed on one side of the lower end and the lower end of the valve gate block opening and closing by the needle pin (3) For forming a different-color plastic product, characterized in that the sleeve pin (4) consisting of a ball (5 ') is extrapolated to be elevated by the lifting piston (10) on the outer peripheral surface of the needle pin (3) Hot runner valve nozzle.

이상과 같은 본 발명 핫런너 밸브노즐로 2색 플라스틱제품을 성형하려면 먼저 핫런너 밸브노즐의 니들핀(3)을 상승시킨 다음, 슬리브핀(4)을 노즐바디(9)의 외주면에 외삽된 승강피스톤(10)에 의해 밸브게이트(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 흘러들어가게하여 제1색상의 플라스틱층(6)이 성형되게한 후, 니들핀(3)을 하강시켜 슬리브핀(4)하단의 밸브게이트대용 개폐공(5')을 폐쇄한 상태에서 니들핀(3)과 슬리브핀(4)을 동시에 상승시켜 제1탕도(1)가 니들핀(3)과 슬리브핀(4)에 의해 막히면서 제2탕도(2)만 열리도록하여 그 제2탕도를 통하여 제2색상의 합성수지가 공급되게하므로서 제2색상의 플라스틱층(7)이 성형되어 두가지 색상층의 플라스틱 제품을 얻을 수 있게 한 것이다.In order to form a two-color plastic product with the above-described hot runner valve nozzle of the present invention, first, the needle pin 3 of the hot runner valve nozzle is raised, and the sleeve pin 4 is extrapolated on the outer circumferential surface of the nozzle body 9. The synthetic water support material of the first color is added to the first tap water in a state in which the through hole 8 formed in the lower end side of the sleeve pin is penetrated by the piston 10 to the valve gate 5 to penetrate the first tap water 1. 1) flows into the valve gate 5 via the sleeve pin lower through hole 8 so that the plastic layer 6 of the first color is formed, and then the needle pin 3 is lowered to lower the sleeve pin 4; The needle pin 3 and the sleeve pin 4 are simultaneously raised in a state where the opening and closing hole 5 'of the lower valve gate block is closed, so that the first tap water 1 becomes the needle pin 3 and the sleeve pin 4 The second color bath 2 is opened while the second resin is supplied with synthetic resin of the second color through the second bath. Layer 7 are molded to a plastic product can be obtained in two kinds of color layer.

본 발명 이색 플라스틱제품 성형용 핫런너 밸브노즐을 이용하여 이색의 플라스틱제품을 성형하게되면 그 밸브노즐의 니들핀(3)과 슬리브핀(4)에 의해 용융 합성수지의 공급 차단을 정확하게 할 수 있으므로 두가지 색상의 합성수지가 혼합되지 않고 선명하게 이색 플라스틱 제품을 얻을 수 있는 효과가 있다.When molding a bi-color plastic product using the hot runner valve nozzle for molding a bi-color plastic product, the supply of molten synthetic resin can be precisely blocked by the needle pin 3 and the sleeve pin 4 of the valve nozzle. The synthetic resin of color is not mixed, it is effective to obtain a vivid color plastic product.

Claims (1)

노즐바디(9)내의 핀홀 양측에 두개의 제1,2 탕도(1)(2)를 형성하고, 상기 노즐바디(9) 외주면에는 그 외주면에 접하여 승강되게 승강피스톤(10)을 장착하며, 핀홀내의 니들핀(3)의 외주면에는 하부 일측에 제1탕도(1)와 관통되는 관통공(8)이 형성되고 그 하단은 니들핀(3)에 의해 개폐되는 개폐공(5')이 형성된 것으로 구성된 슬리브핀(4)을 상기 니들핀(3) 외주면에서 상기 승강피스톤(10)에 의해 승강되도록 외삽한 것으로 구성됨을 특징으로하는 이색(貳色) 플라스틱제품 성형용 핫런너 밸브노즐.Two first and second water flows (1) and (2) are formed on both sides of the pinhole in the nozzle body (9), and the lifting piston (10) is mounted on the outer circumferential surface of the nozzle body (9) to be elevated in contact with the outer circumferential surface thereof. On the outer circumferential surface of the needle pin (3) in the pinhole is formed a through hole (8) penetrating through the first waterway (1) on one side of the lower end and the opening and closing hole (5 ') is opened and closed by the needle pin (3) Hot-runner valve nozzle for forming a bi-color plastic product, characterized in that formed by extrapolating the sleeve pin (4) consisting of formed to be elevated by the lifting piston (10) on the outer peripheral surface of the needle pin (3).
KR1020020069203A 2002-11-08 2002-11-08 Hot Runner Valve Nozzle for molding Two Colour Plastics KR100542176B1 (en)

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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
KR20220048308A (en) * 2020-10-12 2022-04-19 주식회사 유도 Hot runner system for double injection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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
KR20220048308A (en) * 2020-10-12 2022-04-19 주식회사 유도 Hot runner system for double injection
KR102399584B1 (en) * 2020-10-12 2022-05-19 주식회사 유도 Hot runner system for double injection

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