KR100368470B1 - A pair of hot runner valves equipped on one manifold - Google Patents
A pair of hot runner valves equipped on one manifold Download PDFInfo
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- KR100368470B1 KR100368470B1 KR10-2000-0033566A KR20000033566A KR100368470B1 KR 100368470 B1 KR100368470 B1 KR 100368470B1 KR 20000033566 A KR20000033566 A KR 20000033566A KR 100368470 B1 KR100368470 B1 KR 100368470B1
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- manifold
- hot runner
- piston
- valve
- runner valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/02—Other constructional types of cut-off apparatus; Arrangements for cutting-off with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
본 발명은 합성수지 제품 성형용 핫런너 밸브(Hot Runner Valve)장치에 관한 것으로서, 하나의 매니 폴드의 양측에 한쌍의 핫런너 밸브장치를 대칭되게 장착하되 피스톤을 매니 폴드 외부 측면에 위치되게하고 그 피스톤의 로드에 의해 밸브핀을 작동하게 하므로서 고장이 적고 장치의 분해 조립이 간편하고 패킹이나 오링과 같은 열에 약한 피스톤 부품의 손상이 적은 장점이 있고 하나의 탕도에서 용융합성수지 원료를 동시에 공급하면서 한쌍의 핫런너 밸브장치에 의해서 동시에 두 개의 플라스틱 제품을 생산하므로 양산을 할 수 있는 특징이 있는 것이다.The present invention relates to a hot runner valve device for molding a synthetic resin product, wherein a pair of hot runner valve devices are symmetrically mounted on both sides of a manifold, and the piston is positioned on an outer side of the manifold and the piston The valve pin is operated by the rod, which has less trouble, easy disassembly and assembly of the device, less damage to the piston parts such as packing and O-ring, and less damage to the piston parts. The hot runner valve device produces two plastic products at the same time, which makes it possible to mass-produce.
Description
본 발명은 한쌍으로 설치된 플라스틱 제품 성형용 핫런너 밸브장치에 관한 것으로서, 특히 하나의 매니 폴드 양측의 일직선상에 한쌍으로 설치되되 피스톤이 매니폴드 양측면에 설치된 플라스틱 제품 성형용 핫런너 밸브장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of hot runner valve apparatus for molding plastic products, and more particularly, to a pair of hot runner valve apparatus for molding plastic products, in which a piston is installed on both sides of a manifold. .
종래의 플라스틱 제품 성형용 핫런너 밸브장치의 한 예로는 도3에 도시된 바와같이 한개의 매니 폴더(다기관;多岐管)(20)의 일측에 설치된 하나의 피스톤(30)과 그 매니폴드의 타측에 설치된 하나의 핫런너(40)로 구성되고 또한 상기 핫런너(40)내의 밸브핀(107), 내부탕도(110) 및 외부탕도(500)등도 모두 하나로 구성되어 있어서 이와같은 핫런너 밸브장치로 플라스틱 제품을 성형하고져 할 때는 단시간에 플라스틱 제품의 대량 생산이 어렵고 만약 플라스틱 제품을 대량으로 생산하려면 하나의 매니폴드내(20)에 피스톤(30)과 핫런너(40)가 각각 하나씩 설치된 핫런너 밸브장치를 다수개 설치해야되고 그로인해 넓은 공간이 필요하게 되는 결점이 있었다.One example of a conventional hot runner valve device for molding a plastic product is one piston 30 provided on one side of one manifold (manifold) 20 and the other side of the manifold, as shown in FIG. It is composed of one hot runner 40 installed in the valve pin 107, the internal tap water 110, and the external tap water 500 in the hot runner 40 is also composed of one such hot runner valve It is difficult to mass-produce plastic products in a short time when the plastic products are molded by a device. If a large quantity of plastic products are produced, a piston 30 and a hot runner 40 are installed in one manifold 20. The disadvantage is that a large number of runner valve devices have to be installed, thereby requiring a large space.
또다른 예의 플라스틱 제품 성형용 핫런너 밸브장치로는, 도4에 도시된 바와같이, 매니폴더 양측에 핫런너 밸브장치의 핫런너(800)(800') 및 피스톤(600) (600')과 양 밸브장치의 내부탕도(110)(110')로의 합성수지 주입을 위한 외부주입 탕도(500)등을 설치하기 위하여 중앙에 위치한 주매니폴드(100)의 하부에 또 하나의 주매니폴드(100')를 설치하고 주매니폴드(100)의 양측에는 보조 매니폴드(200) (200')를 설치한 다음 상기 주매니폴드(100)의 양측 내부에 핫런너 밸브장치의 피스톤(600)(600')을 설치하고 보조 매니폴드(200)(200')의 내부에는 핫런너(노즐)(800)(800')의 노즐바디(900)(900')를 장착하고 하부 주매니폴드 (100')와 양측의 보조 매니폴드(200)(200')를 거쳐서는 용융합성수지를 외부에 주입하기 위한 외부주입 탕도(500)를 설치한 것으로서, 상기 상부 주매니폴드(100)내의 공간부(300)(300')에서 피스톤(600)(600')이 공압(700)(700')(700")에 의하여 왕복 운동을 하게되면 그 피스톤(600)(600')에 고정된 밸브핀(107)(107')이 핫런너(노즐)(800)(800')의 밸브게이트(1000)(1000')를 개폐하게되는데 이와같이 개폐되는 밸브게이트가 개방된 상태에서 외부주입탕도(500)를 통하여 용융합성수지를 내부탕도(110)(110')로 공급하면 밸브게이트(1000)(1000')를 통하여 플라스틱 성형 몰드에 공급되어 플라스틱 제품이 성형되도록 구성되어 있으나, 이 경우에는 하부 주매니폴드(100')와 양측에 보조 매니폴드(200)(200')를 새로 설치해야 하는 불편이 있고 피스톤(600)(600') 및 밸브핀(107)(107')의 헤드가 상부 주매니폴드 (100)내에 위치하여 그 내부공간(300)(300')내에서 왕복하게 되므로 피스톤(600) (600')을 비롯한 핫런너 밸브장치 전체가 열에의해 팽창 수축이 심하여 균형을 유지하기가 어렵고 장치를 구성하는 부분의 분해 조립도 어렵고 복잡하며 패킹이나 오링등 열에 취약한 부품의 내구력도 약하여 오래 유지하지 못하게 되므로 장치가 쉽게 훼손되거나 균형을 잃게 되는 결점이 있었다.As another example of the hot runner valve device for molding plastic products, as shown in FIG. 4, the hot runners 800, 800 ′ and the piston 600, 600 ′ of the hot runner valve device are provided on both sides of the manifold. Another main manifold under the main manifold 100 located at the center for installing the external injection water supply 500 for the injection of the synthetic resin into the internal flow paths 110 and 110 ′ of both valve devices. 100 ') and the auxiliary manifolds 200 and 200' are installed on both sides of the main manifold 100, and then the piston 600 of the hot runner valve device (in both sides of the main manifold 100). 600 ') and the nozzle bodies 900 and 900' of the hot runners (nozzles) 800 and 800 'are mounted inside the auxiliary manifolds 200 and 200'. ') And an external injection water supply 500 for injecting molten synthetic resin to the outside via the auxiliary manifolds 200 and 200' on both sides, and in the upper main manifold 100. When the pistons 600 and 600 'are reciprocated by the pneumatics 700, 700' and 700 "in the space portions 300 and 300 ', they are fixed to the pistons 600 and 600'. The valve pins 107 and 107 'open and close the valve gates 1000 and 1000' of the hot runners (nozzles) 800 and 800 '. When the molten synthetic resin is supplied to the internal water supply (110) (110 ') through the 500, it is supplied to the plastic molding mold through the valve gates (1000) and (1000'). It is inconvenient to newly install the auxiliary main manifolds 200 and 200 'on both the lower main manifold 100' and the heads of the pistons 600, 600 'and the valve pins 107, 107'. Since it is located in the upper main manifold 100 and reciprocates in the inner spaces 300 and 300 ', the entire hot runner valve device, including the pistons 600 and 600', is severely expanded and contracted due to heat. A difficult and complex, it is difficult to keep an exploded assembly of the parts of the device, and there was a drawback because the durability of the vulnerable parts such as heat seal or O-ring is also weak, do not you get to keep old devices are easily damaged or that are out of balance.
본 발명은 상기한 바와같은 종래의 플라스틱 제품 성형용 핫런너 밸브장치의 결점을 개선하여 보조 매니폴드나 또 다른 주매니폴드가 필요없이 하나의 주매니폴드의 양측에 일직선상으로 한쌍의 핫런너 밸브장치(매니폴드 및 피스톤 장치와 핫런너밸브)를 설치하되, 피스톤을 매니폴드의 외부에 설치한 핫런너 밸브장치를 제공하므로써 피스톤의 분해 조립이 간편하고 밸브장치에서 발생되는 열을 적게 받으므로 피스톤의 장착 부위가 열에 의해 변형되지 않고 항상 균형을 유지하게 되고 열에 의해 패킹이나 오링등의 훼손도 적게 되면서 하나의 플라스틱 제품 성형장치인 핫런너 밸브장치에서 동시에 두개의 성형제품을 생산할 수 있어서 양산이 가능하게한 것으로서 이를 첨부된 도면을 참조하면서 상세히 설명하면 다음과 같다.The present invention improves the shortcomings of the above-mentioned hot runner valve device for molding a plastic product as described above, so that there is no need for an auxiliary manifold or another main manifold. Install a device (manifold and piston device and hot runner valve), but by providing a hot runner valve device with the piston installed outside of the manifold, the piston is easy to disassemble and assemble and receives less heat from the valve device. It is possible to mass-produce two molded products at the same time in the hot runner valve device, which is a plastic product molding device, while the mounting part of the product is not deformed by heat and always maintains the balance and the damage of packing or O-ring is reduced by heat. When described in detail with reference to the accompanying drawings as it is as follows.
도 1 은 본 발명에 따른 한쌍의 핫런너 밸브장치의 종단면도.1 is a longitudinal sectional view of a pair of hot runner valve apparatus according to the present invention.
도 2 는 본 발명에 따른 한쌍의 핫런너 밸브장치의 횡단면도.Figure 2 is a cross-sectional view of a pair of hot runner valve device according to the present invention.
도 3 은 종래의 단일 핫런너 밸브의 일예의 횡단면도.3 is a cross-sectional view of one example of a conventional single hot runner valve.
도 4 는 종래의 단일 핫런너의 또다른 예의 횡단면도.4 is a cross-sectional view of another example of a conventional single hot runner.
* 도면중 주요부분에 대한 부호의 설명** Explanation of symbols for main parts of drawing *
1 : 매니 폴드 2 : 피스톤 본체3,3' : 피스톤 로드 4,4' : 상하 홀더5 : 실린더 6,6',6a,6b : 볼트7 : 밸브핀 10 : 핀해드11 : 내부 탕도 12 : 외부 탕도13a,13b,13a',13b' : 공압 14 : 노즐헤드15 : 밸브게이트 16 : 노즐 본체17 : 실린더DESCRIPTION OF SYMBOLS 1: Manifold 2: Piston body 3, 3 ': Piston rod 4, 4': Upper and lower holder 5: Cylinder 6, 6 ', 6a, 6b: Bolt 7: Valve pin 10: Pin head 11: Internal ballistic 12: External flow paths 13a, 13b, 13a ', 13b': Pneumatic 14: Nozzle head 15: Valve gate 16: Nozzle body 17: Cylinder
매니폴드와 피스톤과 핫런너 밸브(노즐)로 구성되는 플라스틱 성형용 핫런너 밸브장치에 있어서, 한몸의 매니폴드(1)의 양측에 ㄷ자형 공간(5)을 형성한 다음, 공압(13a)(13b)에 의해 작동되는 피스톤(2)을 매니폴드(1)의 양외측면에 위치하도록 하면서 피스톤 로드(3)(3')는 상기 공간(5)내에 내장되게하고 상기 피스톤 로드(3)(3')의 단부에는 내부탕도(11)내에서 좌우 이동하면서 밸브게이트(15)를 개폐하는 밸브핀(7)의 핀해드(10)를 볼트(6)(6')로 고정 설치한 상하 홀더(4)(4')를 볼트(6a)(6b)로 고정 설치하고 상기 피스톤(2)내측에는 노즐(핫런너)본체(6) 외주면에 접하여 노즐헤드(14)에 닿을 때까지만 제한적으로 왕복운동을 하는 실린더 (17)를 설치하고 상기 핫런너 밸브장치의 내부탕도(11)는 한몸으로 된 매니 폴더(1)내의 T자형으로 갈라진 외부주입탕도(12)와 통상적인 방법으로 연결한 것으로 구성된다.이상과 같이 구성되는 본 발명 장치로 플라스틱 제품을 성형하려면 공압(13a)(13b)에 의해 양쪽 피스톤(2)을 동시에 작동시켜 그 피스톤(2) 내측에 장착된 실린더(17)가 노즐본체(16)의 외주면을 타고 왕복 작동되게하고 그 실린더의 왕복운동에 의해 그 피스톤 로드(3)(3')의 단부에 장착된 홀더(4)(4')에 핀해드 (10)가 고정된 밸브핀(7)을 이동시켜 밸브게이트(15)를 연다음 외부주입 탕도(12)와 내부탕도(11) 및 밸브게이트(15)를 거쳐 성형 몰드에 용융합성수지를 주입하여 플라스틱 제품을 성형한후 피스톤(2)을 반대로 이동시켜 상기와 역동작에 의하여 밸브핀(7)으로 밸브게이트(15)를 차단하는 방법을 반복하여 플라스틱 제품을 얻는다.In a plastic molding hot runner valve device comprising a manifold, a piston, and a hot runner valve (nozzle), a U-shaped space 5 is formed on both sides of a single manifold 1, and then a pneumatic 13a ( The piston rods 3 and 3 'are embedded in the space 5 while the pistons 2 actuated by 13b are located on both outer sides of the manifold 1 and the piston rods 3 and 3 ') The upper and lower holders having the pin heads 10 of the valve pins 7 which open and close the valve gate 15 while moving left and right in the inner tap water 11 by bolts 6 and 6'. (4) (4 ') is fixedly installed with bolts (6a) and (6b), and the piston (2) is reciprocally limited only in contact with the nozzle head (14) in contact with the outer peripheral surface of the nozzle (hot runner) body (6). The inner raceway 11 of the hot runner valve device is provided with a cylinder 17 for movement, and the external injection raceway 12 divided into a T-shape in the manifold 1 in one body is usually used. In order to mold the plastic product with the apparatus of the present invention configured as described above, both pistons 2 are simultaneously operated by pneumatics 13a and 13b to be mounted inside the pistons 2. The cylinder 17 is reciprocated on the outer circumferential surface of the nozzle body 16 and pins are attached to the holders 4, 4 'mounted at the ends of the piston rods 3, 3' by the reciprocating motion of the cylinder. The valve gate 15 is opened by moving the valve pin 7 having the head 10 fixed thereto, and then melt-molded resin is formed in the molding mold via the external injection water supply 12, the internal water supply 11, and the valve gate 15. After molding the plastic product by injecting the piston (2) to the reverse movement and the method to block the valve gate 15 by the valve pin (7) by the reverse operation and repeat the above to obtain a plastic product.
이상과 같이 구성되는 본 발명의 하나의 매니폴더에 한쌍의 핫런너 밸브가 장착된 핫런너 밸브장치는 피스톤(2)이 매니폴드(1)의 외부 측면에 장착되어 있어서 장치내에서 발생되는 열을 받지 않기때문에 열에 의한 장치의 수축 팽창이 적어서 일정하게 균형을 유지할 수가 있고 또한 피스톤이 외부에 장착되어 있고 모든 조립품이 한개의 매니폴드에만 장착되어 있으므로 분해 조립이 극히 용이하고 고장이 적으며 패킹이나 오링등 열에 취약한 부품에 열이 적게 미치므로 내구성을 좋게하며 여러개의 매니폴드를 조립할 필요가 없어서 분해 조립이 간편하면서 제작공정이 간편하고 재료가 적게 소요되어 원가 절감효과도 있게된다.The hot runner valve device in which a pair of hot runner valves is mounted on one manifold of the present invention configured as described above has a piston (2) mounted on an outer side of the manifold (1), and thus generates heat generated in the device. Since it does not receive heat, the expansion and contraction of the device is small so that the balance can be kept constant. Also, since the piston is mounted on the outside and all the assemblies are mounted on one manifold, disassembly and assembly are extremely easy. It has less heat to parts that are vulnerable to heat, which improves durability and eliminates the need to assemble multiple manifolds.
이상과 같이 구성되는 본 발명 플라스틱 제품 성형용 핫런너 밸브장치는 하나의 매니폴드(1)에 핫런너가 두개 장착되어 있으므로 동시에 두개의 플라스틱 제품을 성형할 수 있고 분해 조립이 간편하고 재료가 적게들어 제조원가가 절감되는 효과가 있다.Since the hot runner valve device for molding a plastic product of the present invention configured as described above is provided with two hot runners in one manifold 1, two plastic products can be molded at the same time, and the assembly and disassembly are easy and the material is low. The manufacturing cost is reduced.
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