KR101774191B1 - Plastic tank - Google Patents

Plastic tank Download PDF

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Publication number
KR101774191B1
KR101774191B1 KR1020170008865A KR20170008865A KR101774191B1 KR 101774191 B1 KR101774191 B1 KR 101774191B1 KR 1020170008865 A KR1020170008865 A KR 1020170008865A KR 20170008865 A KR20170008865 A KR 20170008865A KR 101774191 B1 KR101774191 B1 KR 101774191B1
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South Korea
Prior art keywords
plastic tank
flange portion
fused
grip
component
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KR1020170008865A
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Korean (ko)
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KR20170010873A (en
Inventor
계태홍
유중근
김태현
조형주
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주식회사 동희산업
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Priority to KR1020170008865A priority Critical patent/KR101774191B1/en
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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3408—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

본 발명에서는 중공형이며 일측면에 관통홀이 형성된 바디; 및 바디의 관통홀의 테두리에서 외측으로 돌출 형성된 기둥 형상이며, 외측면의 둘레를 따라 플렌지부가 돌출 형성되고, 플렌지부를 중심으로 바디측으로 배치되며 고정지그에 안착되는 파지부 및 바디 반대측으로 배치되며 부품과 융착되는 융착부로 구성된 접합부;를 포함하고, 부품은 기둥 형상의 결합부가 돌출 형성되고, 결합부의 단부가 접합부의 융착부 단부와 열융착됨으로써 바디에 결합되는 것을 특징으로 하는 플라스틱탱크가 소개된다.In the present invention, a body having a hollow shape and a through hole formed on one side thereof; And a flange portion protruding from a periphery of the outer side surface, the flange portion protruding outward from a rim of the through hole of the body, the flange portion being disposed on the body side with respect to the flange portion, And a joining part composed of a fusion-bonded part to be fused. The plastic tank is characterized in that a column-shaped coupling part is protruded and an end of the coupling part is thermally welded to the fusion-bonded part end of the coupling part.

Figure R1020170008865
Figure R1020170008865

Description

플라스틱탱크 {PLASTIC TANK}Plastic tank {PLASTIC TANK}

본 발명은 플라스틱탱크와 부품을 상호 열융착하며, 플라스틱탱크 및 부품이 열융착 과정에서 변형이 일어나지 않도록 하기 위한 플라스틱탱크에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic tank for thermally fusing a plastic tank and a component, and preventing a plastic tank and components from being deformed during a thermal welding process.

플라스틱탱크류는 다양한 용도로 사용될 수 있으며, 특히 최근 자동차 분야에서 경량화를 위한 기술적 대안으로 많이 상용화되고 있다.Plastic tanks can be used for a variety of applications, and they have been widely commercialized in recent years as a technological alternative to light weight in the automotive field.

이러한 플라스틱탱크의 경우 연료탱크, 요소수탱크 등으로 활용되고 있으며, 이에는 각종 펌프, 밸브류 등의 부품이 결합된다.Such plastic tanks are utilized as fuel tanks, urea water tanks, and the like, in which components such as various pumps and valves are combined.

보통 플라스틱탱크는 열가소성 수지로 제조되며, 부품을 이에 부착하는 방법으로는 열융착의 방법이 많이 사용되고 있다. Generally, plastic tanks are made of thermoplastic resin, and methods of attaching parts to them are heat-sealing methods.

이러한 열융착의 경우는 가장 쉽게는 부품과 탱크를 유사한 재질로 성형하고, 이들을 상호 가열하여 조립부분을 녹인 후 압착함으로써 부품이 플라스틱탱크에 자연스럽게 고정되도록 하는 것이다.In the case of such thermal fusion, the parts are easily molded into a similar material to the parts and the tanks are mutually heated to dissolve the assembly parts, and then the parts are compressed and naturally fixed to the plastic tank.

다만, 이를 위해 플라스틱탱크와 부품을 상호 접합되는 부분에서 가열하고 압착할 필요가 있는데, 가열시에는 열이 전달되어 접합부분은 직접적으로 용융외고 그 주변부도 함께 유동성을 갖는 상태가 될 확률이 높다.For this purpose, however, it is necessary to heat and press the plastic tank and the parts to be bonded to each other. In the heating, the heat is transferred, and the joint portion is likely to be in a state of being directly melted.

실제 제조공정에서는 이러한 문제로 인하여 가열 후 압착시 플라스틱탱크의 접합 주변부가 움푹하게 밀리는 현상이 문제로 발생되었다.In the actual manufacturing process, this problem caused the problem that the periphery of the joint of the plastic tank is depressed during pressing after heating.

특히, 부품과는 달리 플라스틱탱크는 중공형의 속이 비어있는 통 형상이므로, 부품과의 접착을 위한 가압시 플라스틱탱크의 접합부분이 어느정도 유동성을 갖는 상태에서 부품의 가압에 의해 밀리게 되는 것이다.Particularly, unlike parts, the plastic tank is a barrel-shaped hollow having a cavity. Therefore, when a pressure is applied to adhere to a component, the joint portion of the plastic tank is pushed by pressing of the component in a state of having fluidity to some extent.

결과적으로 이러한 문제는 탱크의 용량축소, 설계공차발생, 접합 부분의 내구 저하 등의 문제점을 일으키게 된다.As a result, such a problem causes problems such as capacity reduction of the tank, occurrence of design tolerance, decrease of durability of the joint portion, and the like.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art

KR 10-1993-0007753 AKR 10-1993-0007753 A

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 플라스틱탱크와 부품을 상호 열융착하며, 플라스틱탱크 및 부품이 열융착 과정에서 변형이 일어나지 않도록 하기 위한 플라스틱탱크를 제공하는데 그 목적이 있다.It is an object of the present invention to provide a plastic tank for thermally fusing a plastic tank and a component to prevent deformation of the plastic tank and components during the heat welding process.

상기의 목적을 달성하기 위한 본 발명에 따른 플라스틱탱크는 중공형이며 일측면에 관통홀이 형성된 바디; 및 바디의 관통홀의 테두리에서 외측으로 돌출 형성된 기둥 형상이며, 외측면의 둘레를 따라 플렌지부가 돌출 형성되고, 플렌지부를 중심으로 바디측으로 배치되며 고정지그에 안착되는 파지부 및 바디 반대측으로 배치되며 부품과 융착되는 융착부로 구성된 접합부;를 포함하고, 부품은 기둥 형상의 결합부가 돌출 형성되고, 결합부의 단부가 접합부의 융착부 단부와 열융착됨으로써 바디에 결합되는 것을 특징으로 한다.To achieve the above object, according to the present invention, there is provided a plastic tank having a hollow body and a through hole formed in one side thereof; And a flange portion protruding from a periphery of the outer side surface, the flange portion protruding outward from a rim of the through hole of the body, the flange portion being disposed on the body side with respect to the flange portion, And a joining part composed of a fusion-bonded part to be fused, wherein the part has a columnar coupling part protruding from the coupling part, and the end part of the coupling part is thermally fused with the fusion-bonded part end of the coupling part.

플렌지부의 외경은 파지부 및 융착부보다 큰 것을 특징으로 한다.And the outer diameter of the flange portion is larger than that of the grip portion and the fused portion.

파지부의 외경은 고정지그에 형성된 파지홀의 내경에 대응되도록 형성된 것을 특징으로 한다.And the outer diameter of the grip portion is formed to correspond to the inner diameter of the grip hole formed in the fixing jig.

파지부는 바디의 관통홀의 테두리에서 외측으로 돌출 형성된 기둥 형상이며 돌출된 높이는 고정지그의 두께에 대응되도록 형성된 것을 특징으로 한다.The grip portion is formed in a columnar shape protruding outward from the rim of the through hole of the body, and the protruded height is formed to correspond to the thickness of the fixing jig.

접합부의 융착부는 부품의 결합부와 동일한 직경을 갖는 원통형의 파이프 형상인 것을 특징으로 한다.And the fused portion of the joint portion is in the form of a cylindrical pipe having the same diameter as the joint portion of the component.

플렌지부는 접합부의 테두리를 따라 돌출 형성된 링 형상인 것을 특징으로 한다.The flange portion is characterized by being formed in a ring shape protruding along the rim of the joint portion.

상술한 바와 같은 본 발명의 플라스틱탱크에 따르면, 플라스틱탱크와 부품을 상호 열융착하며, 플라스틱탱크 및 부품이 열융착 과정에서 변형이 일어나지 않도록 할 수 있다.According to the plastic tank of the present invention as described above, the plastic tank and the component are thermally fused to each other, and the plastic tank and the component are prevented from being deformed during the heat welding process.

또한, 기존의 열융착 공정과 시스템을 그대로 이용하면서 단지 탱크의 접합부의 형상을 설계변경하고 지그를 적용함으로써 간단하게 플라스틱탱크의 변형을 방지할 수 있게 된다.In addition, it is possible to easily prevent deformation of the plastic tank by simply changing the design of the shape of the joint portion of the tank and applying the jig while using the conventional thermal fusion process and system as it is.

그리고, 탱크에는 플렌지부가 형성되어 있어 열융착을 위한 가열이나 가압시 다소의 공정 오차가 있다 하더라도 플라스틱탱크의 변형을 안전하게 방지할 수 있게 된다.Further, since the flange portion is formed in the tank, it is possible to safely prevent deformation of the plastic tank even if there is a slight process error when heating or pressurizing for thermal fusion.

도 1은 본 발명의 실시예에 따른 플라스틱탱크 열융착 시스템을 나타낸 도면.
도 2 내지 4는 본 발명의 실시예에 따른 플라스틱탱크를 나타낸 도면.BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a plastic tank thermal fusing system in accordance with an embodiment of the present invention.
Figures 2 to 4 illustrate a plastic tank according to an embodiment of the present invention.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대하여 살펴본다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 실시예에 따른 플라스틱탱크 열융착 시스템을 나타낸 도면이고, 도 2 내지 4는 본 발명의 실시예에 따른 플라스틱탱크를 나타낸 도면이다.FIG. 1 is a view showing a plastic tank thermal fusing system according to an embodiment of the present invention, and FIGS. 2 to 4 are views showing a plastic tank according to an embodiment of the present invention.

본 발명은 플라스틱탱크와 부품을 상호 열융착하며, 플라스틱탱크 및 부품이 열융착 과정에서 변형이 일어나지 않도록 하기 위한 플라스틱탱크, 플라스틱탱크 열융착 시스템 및 방법을 제공하는데 그 목적이 있다.An object of the present invention is to provide a plastic tank and a plastic tank heat-sealing system and method for thermally fusing a plastic tank and a component with each other to prevent deformation of the plastic tank and components during the heat-sealing process.

본 발명에 따른 플라스틱탱크 열융착 시스템은, 기둥 형상의 결합부(720)가 돌출 형성된 부품(700); 중공형의 바디(100) 일측면에서 외부로 돌출 형성되고 끝단이 부품의 결합부(720)와 접하는 접합부(120) 및 접합부(120)의 테두리를 따라 돌출 형성된 플렌지부(124)로 구성되고, 접합부(120)는 플렌지부(124)를 중심으로 바디(100)측으로의 파지부(122) 및 바디(100) 반대측으로의 융착부(126)로 구성된 플라스틱탱크; 플렌지부(124)와 바디(100)의 사이에서 파지부(122)를 감싸는 형상으로 플라스틱탱크에 결합된 고정지그(300); 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 마주보게 이격된 상태에서 그 사이에 위치되며, 결합부(720)측으로 제1가열부(520)가 마련되고 접합부(120)측으로 제2가열부(540)가 마련된 가열유닛(500); 및 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)의 사이로 가열유닛(500)을 이동시키고, 부품(700) 또는 플라스틱탱크 또는 가열유닛(500)을 슬라이딩시켜 제1가열부(520)와 제2가열부(540)에 의해 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 가열되도록 하고, 가열유닛(500)을 복원시킨 후 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 상호 압착되도록 함으로써 플라스틱탱크와 부품(700)을 열융착하는 제어부;를 포함한다.The plastic tank thermal fusing system according to the present invention includes: a component 700 having a columnar engaging portion 720 protruded; A joint part 120 protruding outward from one side of the hollow body 100 and having an end abutting on the engaging part 720 of the part and a flange part 124 protruding along the edge of the abutting part 120, The joint portion 120 includes a plastic tank composed of a grip portion 122 to the body 100 side and a fused portion 126 to the opposite side of the body 100 about the flange portion 124; A fixing jig 300 coupled to the plastic tank in a shape to wrap the grip portion 122 between the flange portion 124 and the body 100; The first heating part 520 is provided on the side of the coupling part 720 and the first heating part 520 is provided on the side of the coupling part 720 and the joint part 120 A heating unit 500 provided with a second heating unit 540 on the side of the heating unit 500; The heating unit 500 is moved between the joining portion 720 of the component 700 and the joining portion 120 of the plastic tank and the component 700 or the plastic tank or the heating unit 500 is slid, The joining portion 720 of the component 700 and the joining portion 120 of the plastic tank are heated by the first heating portion 520 and the second heating portion 540 and the heating unit 500 is restored, And a control unit for thermally fusing the plastic tank and the component 700 by pressing the joint portion 720 and the joint portion 120 of the plastic tank together.

도 1에 도시된 바와 같이, 플라스틱탱크는 일측에 배치되고, 부품(700)은 타측에 배치된다. 그리고 그 사이에는 가열유닛(500)이 배치된다.As shown in Fig. 1, the plastic tank is disposed on one side, and the component 700 is disposed on the other side. A heating unit 500 is disposed therebetween.

도시된 부품(700)은 탱크에 결합되는 펌프를 나타낸다. 펌프는 모터 등의 부속과 그 하단에 형성된 베이스와 그 베이스의 테두리를 따라 상방으로 솟아오른 기둥형상의 결합부(720)가 돌출 형성된다. 펌프모듈이 탱크의 내부로 삽입되고 결합부(720)가 탱크와 융착됨으로써 부품(700)이 탱크에 결합되는 것이다.The illustrated component 700 represents a pump coupled to a tank. The pump has a part such as a motor, a base formed at the lower end thereof, and a columnar engaging part 720 protruding upward along the rim of the base. The pump module is inserted into the tank and the engaging portion 720 is welded to the tank so that the component 700 is coupled to the tank.

플라스틱탱크는 도 2 내지 4에서도 상세히 볼 수 있듯이, 중공형의 바디(100)로 구성된다. 도시된 플라스틱탱크는 차량의 요소수 탱크를 나타낸다. 바디(100)의 일측면에는 외부로 돌출 형성되고 끝단이 부품의 결합부(720)와 접하는 접합부(120)가 형성된다.The plastic tank is composed of a hollow body 100, as can be seen in detail in Figs. The plastic tank shown represents the urea water tank of the vehicle. At one side of the body 100, a joint part 120 protruding outwardly and having an end contact with the engaging part 720 of the part is formed.

그리고 접합부(120)는 접합부(120)의 테두리를 따라 돌출 형성된 플렌지부(124)가 마련되고, 대략 플렌지부(124)는 접합부(120) 높이의 중앙 지점에서 형성될 수 있으나, 이는 융착하고자 하는 깊이나 고정지그의 두께 및 기타 설계치수에 의해 자유로이 정해질 수 있을 것이다.The flange portion 124 may be formed at a central point of the height of the joint portion 120. The flange portion 124 may be formed at the center of the joint portion 120, It can be freely determined by the depth, the thickness of the fixing jig, and other design dimensions.

한편, 접합부(120)는 플렌지부(124)를 중심으로 바디(100)측으로의 파지부(122) 및 바디(100) 반대측으로의 융착부(126)로 나뉘어진다. 제일 끝단의 융착부(126)는 부품(700)의 결합부(720)와 함께 용융되어 접합되는 부분이고, 플렌지부(124)는 지그에 의해 걸리는 목 부분이다. 그리고 파지부(122)는 고정지그(300)에 의해 둘러싸여 물리는 부분이라고 볼 수 있다.The joining portion 120 is divided into a grip portion 122 toward the body 100 and a fused portion 126 opposite to the body 100 with the flange portion 124 as a center. The fused portion 126 at the first end is fused together with the fused portion 720 of the component 700, and the flange portion 124 is a neck portion that is caught by the jig. The grip portion 122 is surrounded by the fixing jig 300 and can be regarded as a portion to be pushed.

이에 따라, 플렌지부의 외경은 파지부 및 융착부보다 크게 형성될 수 있으며, 파지부의 외경은 고정지그에 형성된 파지홀의 내경에 대응되도록 형성될 수 있다. Accordingly, the outer diameter of the flange portion can be larger than the grip portion and the fused portion, and the outer diameter of the grip portion can be formed to correspond to the inner diameter of the grip hole formed in the fixing jig.

한편, 플렌지부(124)와 바디(100)의 사이에서 파지부(122)를 감싸는 형상으로 플라스틱탱크에 결합된 고정지그(300)가 마련된다. 고정지그(300)는 가장 먼저 플라스틱탱크와 결합되는 부분으로써, 고정지그(300)는 파지부(122)의 높이에 대응되는 두께를 갖도록 형성된 베이스 및 베이스에 형성되며 내경이 파지부(122)의 외경에 대응되도록 형성된 파지홀(360)로 구성되어 파지홀(360)이 파지부(122)를 감쌀 수 있다. 그리고 고정지그(300)는 복수의 지그파트(320,340)로 분리되거나 상호 결합될 수 있고, 지그파트(320,340)로의 분리시 파지홀(360)도 함께 분할할 수 있다.A fixing jig 300 coupled to the plastic tank is provided between the flange portion 124 and the body 100 so as to surround the grip portion 122. The fixing jig 300 is first formed on a base and a base formed to have a thickness corresponding to the height of the grip portion 122 and has an inner diameter larger than that of the grip portion 122 And a gripping hole 360 formed to correspond to an outer diameter of the holding portion 360 so that the gripping hole 360 can cover the gripping portion 122. The fixing jig 300 may be divided into a plurality of jig parts 320 and 340 or may be coupled to each other and the holding hole 360 may be divided when the jig parts 320 and 340 are separated.

즉, 고정지그(300)는 플라스틱탱크의 접합부(120) 중에서도 파지부(122)를 감싸는 것으로서, 그 파지홀(360)의 내경이 파지부(122)의 외경과 대응되도록 형성되어 지그파트(320,340)가 각각 파지부(122)를 감싸도록 체결된 후에는 다시 지그파트(320,340)로 분할되기 이전에는 플라스틱탱크로부터 이탈되지 않는 것이다. 고정지그(300)는 이와 같이 플라스틱탱크의 접합부(120)의 파지부(122)를 감싸며 플렌지부(124)에 의해 걸려 이탈되지 못하고, 동시에 일정 평면으로 형성되어 플렌지부(124)를 지탱함으로써 플렌지부(124)와 파지부(122)가 일정부분 유동성을 갖도록 용융되더라도 플라스틱탱크의 접합부(120) 주변이 가압에 의해 움푹 들어가도록 밀리는 현상을 방지할 수 있는 것이다. 즉, 고정지그(300)는 플렌지부(124)에 의해 가압되더라도 플라스틱탱크의 바디(100) 자체에 의해 지지되어 뒤로 밀리지 않고, 결론적으로 플라스틱탱크의 접합부(120)도 뒤로 밀리지 않게 되는 것이다.That is, the fixing jig 300 surrounds the grip portion 122 of the joint portion 120 of the plastic tank. The inner diameter of the grip hole 360 is formed to correspond to the outer diameter of the grip portion 122, Are not separated from the plastic tank before they are divided into the jig parts 320 and 340 after they are fastened to enclose the grip parts 122, respectively. The fixing jig 300 is configured so as to surround the grip portion 122 of the joint portion 120 of the plastic tank and not be caught by the flange portion 124 and to be formed in a predetermined flat surface to support the flange portion 124, The periphery of the joint portion 120 of the plastic tank can be prevented from being depressed by the pressure even if the joint portion 124 and the grip portion 122 are melted to have a certain fluidity. That is, even if the fixing jig 300 is pressed by the flange portion 124, it is supported by the body 100 itself of the plastic tank and is not pushed back, and consequently the joint portion 120 of the plastic tank is also prevented from being pushed back.

한편, 가열유닛(500)은 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 마주보게 이격된 상태에서 그 사이에 위치된다. 그리고 결합부(720)측으로는 제1가열부(520)가 마련되고 접합부(120)측으로는 제2가열부(540)가 마련된다.On the other hand, the heating unit 500 is positioned between the joining portion 720 of the component 700 and the joining portion 120 of the plastic tank in a spaced-apart relationship. The first heating part 520 is provided on the side of the coupling part 720 and the second heating part 540 is provided on the side of the bonding part 120.

또한, 제어부는 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)의 사이로 가열유닛(500)을 이동시킨다. 그리고 부품(700) 또는 플라스틱탱크 또는 가열유닛(500)을 슬라이딩시켜 제1가열부(520)와 제2가열부(540)에 의해 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 가열되도록 한다. 그 후 가열유닛(500)을 복원시킨 후 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)가 상호 압착되도록 함으로써 플라스틱탱크와 부품(700)을 열융착하는 것이다.In addition, the control unit moves the heating unit 500 between the joining portion 720 of the component 700 and the joining portion 120 of the plastic tank. The first heating unit 520 and the second heating unit 540 slide the component 700 or the plastic tank or the heating unit 500 so that the joining portion 720 of the component 700 and the joining portion of the plastic tank 120 are heated. The joining portion 720 of the component 700 and the joining portion 120 of the plastic tank are pressed against each other after the heating unit 500 is restored and the plastic tank and the component 700 are thermally fused.

특히, 플라스틱탱크는 일측면에 관통홀(110)이 형성되고, 관통홀(110)의 테두리를 따라 외측으로 접합부(120)가 돌출되며, 접합부(120)는 원통형의 파이프 형상일 수 있다. 그리고 부품(700)의 결합부(720)는 플라스틱탱크의 접합부(120)의 융착부(126)와 동일한 직경을 갖는 원통형의 파이프 형상일 수 있다. 이에 따라 가압시 용융된 융착부(126)와 결합부(720)의 단부가 서로 압착되며 용접이 이루어지는 것이다. 한편, 플렌지부(124)는 접합부(120)의 테두리를 따라 돌출 형성된 링 형상일 수 있다. 그에 따라 안정적으로 고정지그(300)의 파지홀(360)에 걸리는 상태를 유지하도록 한다.Particularly, the plastic tank has a through hole 110 formed in one side thereof, a joint portion 120 protruding outward along the rim of the through hole 110, and the joint portion 120 may be in the form of a cylindrical pipe. The engaging portion 720 of the component 700 may be in the form of a cylindrical pipe having the same diameter as the fused portion 126 of the joint portion 120 of the plastic tank. Accordingly, the end portions of the fused portion 126 and the engaging portion 720, which are melted at the time of pressurization, are pressed against each other and welded. Meanwhile, the flange portion 124 may be formed in a ring shape protruding along the rim of the joint portion 120. Thereby stably holding the fixing jig 300 in the gripping hole 360.

한편, 이러한 플라스틱탱크 열융착 시스템에 따른 플라스틱탱크 열융착 방법은, 플라스틱탱크의 접합부(120)의 파지부(122)에 고정지그(300)를 장착하는 장착단계; 부품의 결합부(720)와 플라스틱탱크의 접합부(120)를 마주보며 이격되도록 배치하는 배치단계; 가열유닛(500)을 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120) 사이에 위치시키는 위치단계; 부품(700) 또는 플라스틱탱크 또는 가열유닛(500)을 슬라이딩시켜 가열유닛(500)의 제1가열부(520)와 제2가열부(540)에 의해 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)의 융착부(126)가 가열되도록 하는 가열단계; 가열유닛(500)을 복원시키는 복원단계; 및 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)의 융착부(126)가 상호 압착되도록 가압함으로써 플라스틱탱크와 부품(700)을 열융착하는 융착단계;를 포함한다.The plastic tank thermal fusing method according to the plastic tank thermal fusing system includes a mounting step of mounting the fixing jig 300 to the grip part 122 of the joint part 120 of the plastic tank; Disposing the fitting portion (720) of the component and the joint portion (120) of the plastic tank so as to face each other; A positioning step of positioning the heating unit 500 between the joining portion 720 of the component 700 and the joining portion 120 of the plastic tank; The component 700 or the plastic tank or the heating unit 500 is slid so that the first heating unit 520 and the second heating unit 540 of the heating unit 500 can be coupled to the coupling unit 720 of the component 700 Heating the fused portion (126) of the joint portion (120) of the plastic tank to be heated; A restoring step of restoring the heating unit 500; And a fusion step of thermally fusing the plastic tank and the component 700 by pressing the joining portion 720 of the component 700 and the fusion portion 126 of the joining portion 120 of the plastic tank to each other.

그리고 플라스틱탱크는 장착단계에서 고정지그(300)에 의해 위치가 고정되어 가열단계에서 슬라이딩되지 않을 수 있다. 그에 따라 플라스틱탱크와 부품(700)의 압착이 효과적으로 구현된다.And the plastic tank may be fixed in position by the fixing jig 300 in the mounting step and may not slide in the heating step. Whereby the compression of the plastic tank and the component 700 is effectively realized.

그리고 가열단계에서는 먼저 가열유닛(500)을 플라스틱탱크측으로 슬라이딩시켜 제2가열부(540)에 의해 융착부(126)가 가열되도록 하고, 그 다음 부품(700)을 가열유닛(500)측으로 슬라이딩시켜 제1가열부(520)에 의해 결합부(720)가 가열되도록 할 수 있다. 이는 플라스틱탱크의 녹는점이 부품보다 더 높은 경우를 대비한 것으로서, 이는 녹는점이 더 높은 측을 먼저 가열하도록 하고, 어느 정도 가열된 후 타측 부분도 함께 가열함으로써 비슷한 정도의 용융성을 갖도록 하기 위함이다.In the heating step, the heating unit 500 is first slid toward the plastic tank so that the fused portion 126 is heated by the second heating portion 540, and then the component 700 is slid toward the heating unit 500 The first heating unit 520 may heat the coupling unit 720. This is for the case where the melting point of the plastic tank is higher than that of the part, so that the higher melting point is heated first and the other part is heated to some extent and then the other part is heated to have a similar melting property.

구체적으로, 가열단계에서는 가열유닛(500)을 플라스틱탱크측으로 슬라이딩시켜 제2가열부(540)에 의해 융착부(126)가 가열되도록 하고, 융착부(126)가 가열되고 있는 상태에서, 부품(700)을 가열유닛(500)측으로 슬라이딩시켜 제1가열부(520)에 의해 결합부(720)가 융착부(126)와 함께 가열유닛(500)에 의해 가열되도록 할 수 있다.Specifically, in the heating step, the heating unit 500 is slid toward the plastic tank so that the fused portion 126 is heated by the second heating portion 540, and in the state where the fused portion 126 is heated, 700 may be slid toward the heating unit 500 so that the joining portion 720 is heated by the heating unit 500 together with the fused portion 126 by the first heating portion 520.

한편, 복원단계에서는 부품(700)을 후퇴시킨 후 가열유닛(500)을 후퇴시키고, 가열유닛(500)을 부품(700)의 결합부(720)와 플라스틱탱크의 접합부(120)의 사이 지점에서 외측으로 이동시켜 복원시킬 수 있다. 그리고 융착단계에서는 부품(700)을 플라스틱탱크측으로 가압하되, 부품(700)의 결합부(720)가 플라스틱탱크의 접합부(120)의 융착부(126)와는 융착되고 플렌지부(124)와는 융착되지 않을 정도로 부품(700)을 가압할 수 있다. 즉, 압착의 강도를 조절하여 결합부(720)가 융착부(126)와 융착되되 플렌지부(124)까지 침투하지는 않도록 함으로써 플렌지부(124)의 외형을 유지하고, 그에 따라 고정지그(300)에 걸려 플라스틱탱크의 접합부(120) 주변이 함몰되지 않도록 하는 것이다.In the recovery step, the heating unit 500 is retracted after the component 700 is retreated, and the heating unit 500 is moved to the position between the joining portion 720 of the component 700 and the joining portion 120 of the plastic tank So that it can be restored. In the welding step, the component 700 is pressed toward the plastic tank so that the coupling portion 720 of the component 700 is fusion-bonded to the fusion portion 126 of the joint portion 120 of the plastic tank and is not fusion-bonded to the flange portion 124 The component 700 can be pressurized to such an extent that the component 700 is not exposed. That is, by controlling the strength of the compression bonding, the engaging portion 720 is fused to the fused portion 126 but does not penetrate to the flange portion 124, thereby maintaining the outer shape of the flange portion 124, So that the periphery of the joint portion 120 of the plastic tank is not collapsed.

도 3 내지 4는 이러한 플라스틱탱크 열융착 시스템에 의해 제조된 플라스틱탱크를 나타낸 것으로서 플라스틱탱크는, 중공형이며 일측면에 관통홀(110)이 형성된 바디(100); 바디(100)의 관통홀(110)의 테두리에서 외측으로 돌출 형성된 기둥 형상이며, 둘레를 따라 플렌지부(124)가 돌출 형성되고, 플렌지부(124)를 중심으로 바디(100)측으로의 파지부(122) 및 바디(100) 반대측으로의 융착부(126)로 구성된 접합부(120); 및 기둥형상의 결합부(720)가 돌출 형성되고, 결합부(720)의 단부가 접합부(120)의 융착부(126)와 융착되어 바디(100)에 결합되는 부품(700);을 포함한다.3 to 4 show a plastic tank manufactured by such a plastic tank thermal welding system. The plastic tank has a hollow body 100 having a through hole 110 formed on one side thereof. A flange portion 124 is formed to protrude along the periphery and protrude from the rim of the through hole 110 of the body 100. The flange portion 124 protrudes from the periphery of the flange portion 124, (122) and a fused portion (126) on the opposite side of the body (100); And a part 700 in which a columnar engaging part 720 is protruded and an end of the engaging part 720 is fused to the fused part 126 of the fused part 120 to be coupled to the body 100 .

즉, 융착이 완료된 상태에서 융착부(126)는 결합부(720)의 끝단과 함께 용융되어 압착된 후 냉각되어 굳고, 그 후방으로는 플렌지부(124)와 파지부(122)가 여전히 형상을 유지하며 존재하고, 플라스틱탱크의 접합부(120) 주변은 함몰 없이 원형을 그대로 유지할 수 있는 것이다.That is, in the state where the fusion is completed, the fusion bonding portion 126 is melted together with the end of the coupling portion 720 and is compressed, then cooled and solidified, and the flange portion 124 and the grip portion 122 still form And the periphery of the joint portion 120 of the plastic tank can maintain the original shape without depression.

상술한 바와 같은 본 발명의 플라스틱탱크, 플라스틱탱크 열융착 시스템 및 방법에 따르면, 플라스틱탱크와 부품을 상호 열융착하며, 플라스틱탱크 및 부품이 열융착 과정에서 변형이 일어나지 않도록 할 수 있다.According to the plastic tank, the plastic tank thermal welding system and method of the present invention as described above, the plastic tank and the components are thermally fused to each other, and the plastic tank and the components are prevented from being deformed during the heat welding process.

또한, 기존의 열융착 공정과 시스템을 그대로 이용하면서 단지 탱크의 접합부의 형상을 설계변경하고 지그를 적용함으로써 간단하게 플라스틱탱크의 변형을 방지할 수 있게 된다.In addition, it is possible to easily prevent deformation of the plastic tank by simply changing the design of the shape of the joint portion of the tank and applying the jig while using the conventional thermal fusion process and system as it is.

그리고, 탱크에는 플렌지부가 형성되어 있어 열융착을 위한 가열이나 가압시 다소의 공정 오차가 있다 하더라도 플라스틱탱크의 변형을 안전하게 방지할 수 있게 된다.Further, since the flange portion is formed in the tank, it is possible to safely prevent deformation of the plastic tank even if there is a slight process error when heating or pressurizing for thermal fusion.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100 : 바디 120 : 접합부
300 : 고정지그 500 : 가열유닛
700 : 부품 720 : 결합부100: Body 120: Joint
300: Fixing jig 500: Heating unit
700: part 720: engaging part

Claims (6)

중공형이며 일측면에 관통홀이 형성된 바디; 및
바디의 관통홀의 테두리에서 외측으로 돌출 형성된 기둥 형상이며, 외측면의 둘레를 따라 플렌지부가 돌출 형성되고, 플렌지부를 중심으로 바디측으로 배치되며 고정지그에 안착되는 파지부 및 바디 반대측으로 배치되며 부품과 융착되는 융착부로 구성된 접합부;를 포함하고,
부품은 기둥 형상의 결합부가 돌출 형성되고, 결합부의 단부가 접합부의 융착부 단부와 열융착됨으로써 바디에 결합되며,
플렌지부의 외경은 고정지그의 내경보다 크고,
바디, 파지부, 플랜지부 및 융착부는 동일 재질로 함께 성형된 것이며, 열융착에 의해 융착부와 접합부의 단부는 형상이 변형되며 파지부와 바디는 열융착 전과 후의 형상이 동일한 것을 특징으로 하는 플라스틱탱크.A body having a hollow shape and having a through hole at one side thereof; And
A flange portion protruding outward from the rim of the through hole of the body and protruding along the periphery of the flange portion; a grip portion disposed on the body side with respect to the flange portion and seated on the fixing jig; And a bonding portion composed of a fusion bonding portion,
The part has a columnar coupling part protruding from the coupling part, and an end of the coupling part is thermally welded to the fusion part end of the coupling part,
The outer diameter of the flange portion is larger than the inner diameter of the stationary jig,
Wherein the body, the grip portion, the flange portion, and the fused portion are molded together with the same material, and the end portions of the fused portion and the fused portion are deformed by heat fusion and the shape of the grip portion and the body are the same before and after the thermal fusion. Tank. 청구항 1에 있어서,
플렌지부의 외경은 파지부 및 융착부보다 큰 것을 특징으로 하는 플라스틱탱크.The method according to claim 1,
And the outer diameter of the flange portion is larger than that of the grip portion and the fused portion. 청구항 1에 있어서,
파지부의 외경은 고정지그에 형성된 파지홀의 내경에 대응되도록 형성된 것을 특징으로 하는 플라스틱탱크.The method according to claim 1,
And the outer diameter of the grip portion is formed to correspond to the inner diameter of the grip hole formed in the fixing jig. 청구항 1에 있어서,
파지부는 바디의 관통홀의 테두리에서 외측으로 돌출 형성된 기둥 형상이며 돌출된 높이는 고정지그의 두께에 대응되도록 형성된 것을 특징으로 하는 플라스틱탱크.The method according to claim 1,
Wherein the grip portion is formed in a columnar shape protruding outward from the rim of the through hole of the body, and the protruded height is formed to correspond to the thickness of the fixing jig. 청구항 1에 있어서,
접합부의 융착부는 부품의 결합부와 동일한 직경을 갖는 원통형의 파이프 형상인 것을 특징으로 하는 플라스틱탱크.The method according to claim 1,
Wherein the fused portion of the joint portion is in the form of a cylindrical pipe having the same diameter as the joint portion of the component. 청구항 1에 있어서,
플렌지부는 접합부의 테두리를 따라 돌출 형성된 링 형상인 것을 특징으로 하는 플라스틱탱크.The method according to claim 1,
Wherein the flange portion is in the shape of a ring protruding along the rim of the joint portion.
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