KR102152351B1 - 3D Printer for making Pressure Tank and method for manufacturing Pressure Tank using the saem - Google Patents

3D Printer for making Pressure Tank and method for manufacturing Pressure Tank using the saem Download PDF

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KR102152351B1
KR102152351B1 KR1020170051529A KR20170051529A KR102152351B1 KR 102152351 B1 KR102152351 B1 KR 102152351B1 KR 1020170051529 A KR1020170051529 A KR 1020170051529A KR 20170051529 A KR20170051529 A KR 20170051529A KR 102152351 B1 KR102152351 B1 KR 102152351B1
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coating
nozzle
pressure
tank
opening
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KR1020170051529A
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Korean (ko)
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KR20180118351A (en
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윤선홍
박현호
최은주
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한국전자기술연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)

Abstract

본 발명의 일실시예에 따른 내압탱크 제작용 3D 프린터는, 3D 프린터헤드, 상기 3D 프린터헤드에 형성되며,재료공급부를 통해 재료를 공급받아 재료를 토출 및 적층하여 내압탱크 형상을 일체로 성형하는 성형노즐, 상기 3D 프린터헤드에 형성되며, 노즐의 재료 토출방향으로 코팅재료공급부를 통해 코팅재료를 공급받아 상기 내압탱크 내주면 또는 외주면을 코팅하는 코팅노즐 및 상기 성형노즐 및 상기 코팅노즐의 작동을 제어하는 제어부를 포함한다. 본 발명의 일실시예에 따르면, 내압탱크의 제조시에 외형을 일체로 형성함으로써 내압특성의 발휘의 신뢰도를 효과적으로 향상시키고, 외관의 균형잡힌 내구성을 유지할 수 있는 효과가 있다. A 3D printer for producing a pressure-resistant tank according to an embodiment of the present invention is formed on a 3D printer head and on the 3D printer head, and is supplied with a material through a material supply unit to discharge and stack the material to integrally form the pressure-resistant tank shape. Molding nozzle, a coating nozzle that is formed on the 3D printer head and receives a coating material through a coating material supply unit in the material discharge direction of the nozzle to coat the inner or outer circumferential surface of the pressure tank, and controls the operation of the molding nozzle and the coating nozzle It includes a control unit. According to an embodiment of the present invention, by integrally forming the outer shape during manufacture of the pressure resistant tank, there is an effect of effectively improving the reliability of exhibiting the pressure resistance characteristics, and maintaining a balanced durability of the exterior.

Description

내압탱크 제작용 3D 프린터 및 이를 이용한 내압탱크 제조방법{3D Printer for making Pressure Tank and method for manufacturing Pressure Tank using the saem}3D Printer for making Pressure Tank and method for manufacturing Pressure Tank using the saem}

본 발명의 일실시예는 내압탱크 제작용 3D 프린터 및 이를 이용한 내압탱크 제조방법에 관한 것이다. An embodiment of the present invention relates to a 3D printer for manufacturing an internal pressure tank and a method of manufacturing an internal pressure tank using the same.

일반적으로 사용되는 내압용기는 내부에 수용되는 물질의 물성에 따라 높은 압력을 견뎌야 하는 내압성을 요구하는 경우가 많다. LPG 자동차의 경우에도 적용되는 연료탱크는 내부 가스의 내압을 정부가 요구하는 기준에 맞추도록 제작되어야 하므로, 기준 내압특성을 효과적으로 유지하면서, 그 무게나 지속적인 내압을 견디는 신뢰성이 그 적용 부품의 특성상 안전과 직결되는 것으로 매우 중요한 구성이다. In general, pressure-resistant containers are often required to withstand high pressure, depending on the physical properties of the material contained therein. Fuel tanks that are applied to LPG vehicles must be manufactured to meet the standards required by the government, so the reliability of withstanding the weight or continuous internal pressure while maintaining the standard internal pressure characteristics effectively is safe due to the characteristics of the applied parts. It is a very important configuration as it is directly connected to.

이러한 내압용기는 통상적인 제작방식으로 제작하는 경우에, 3차원 형상을 일체로 형성할 수 없어, 중공의 분할된 용기를 제작하여 상호 접합하게 되고, 이 경우 열융착 방식등을 채용하는 것이 일반적이다. When such a pressure-resistant container is manufactured by a conventional manufacturing method, it is not possible to integrally form a three-dimensional shape, and thus a hollow divided container is manufactured and bonded to each other. In this case, it is common to employ a thermal fusion method. .

중공의 두 용기를 열융착하는 경우에도, 융착부분이 내압용기의 밀폐도와 내압을 위한 내구성을 만족하기 위해 결합되는 테두리 부분의 두께의 설계도의 제약이 따를수 밖에 없으며, 제작시에 분리 부품을 상호 결합하는 것으로, 결합부의 결합력에 따른 다른 부분과의 상대적 강성이 떨어지게 되어 지속적인 내압을 견디는 과정에서 결합부분의 파손이나 균열 등 안전상의 문제가 발생할 여지가 높은 것이 업계의 현실이다.Even in the case of heat-sealing two hollow containers, the design drawings of the thickness of the rims where the fusion parts are joined to satisfy the sealing and durability of the pressure-resistant container are bound to be followed. It is a reality in the industry that there is a high possibility of safety problems such as breakage or cracking of the joint part in the process of enduring continuous internal pressure as the relative stiffness of the joint part decreases according to the coupling force of the joint part.

또한, 3차원 형상의 제품을 일체로 제작할 수 있는 3D 프린팅의 기술도 내압용기와 같은 특수한 용도 및 내압특성을 요구하는 제품을 만드는 경우에는 그 제작방식에 따른 신뢰도의 한계가 따를 수 밖에 없는 것 또한, 내압특성과 같은 특수 용도의 제품 제작의 한계가 있다. In addition, the 3D printing technology that can integrally manufacture three-dimensional products is also subject to limitations in reliability depending on the manufacturing method in the case of making products that require special uses and pressure-resistant characteristics such as pressure-resistant containers. , There are limitations in manufacturing products for special purposes such as withstand pressure characteristics.

KRKR 2008-00579642008-0057964 AA

본 발명의 일실시예에 따른 목적은, 내압특성을 갖는 용기를 제작함에 있어, 일체화된 외관을 제작함으로써 종래 결합방식에 의한 결합부의 상대적인 내압특성 등 물리적인 내구성의 취약부를 근본적으로 차단할 수 있는 내압탱크 제작용 3D 프린터 및 이를 이용한 내압탱크 제조방법을 제공하기 위한 것이다. An object according to an embodiment of the present invention is, in manufacturing a container having pressure-resistant characteristics, an internal pressure capable of fundamentally blocking weak areas of physical durability such as relative pressure resistance characteristics of the coupling portion by a conventional coupling method by producing an integrated appearance. It is to provide a tank manufacturing 3D printer and a pressure-resistant tank manufacturing method using the same.

또한, 3D 프린팅을 이용한 3차원 형상의 제작과 더불어, 3D 프린팅 방식에 의한 재료의 적층 구조에 따른 내압특성 등 물리적인 내구성을 효과적으로 유지 및 구현하기 위한 내주면 또는 외주면의 코팅공정을 3D 프린팅 과정에서 함께 구현할 수 있도록 하기 위한 내압탱크 제작용 3D 프린터 및 이를 이용한 내압탱크 제조방법을 제공하기 위한 것이다. In addition, in addition to the production of 3D shapes using 3D printing, the coating process of the inner or outer circumferential surface to effectively maintain and implement physical durability such as pressure resistance characteristics according to the stacked structure of materials by 3D printing is performed together in the 3D printing process. It is to provide a 3D printer for producing a pressure-resistant tank to be implemented and a method of manufacturing a pressure-resistant tank using the same.

본 발명의 일실시예에 따른 내압탱크 제조방법은, 엔지니어링 플라스틱 혼합재료를 3D 프린팅하여 일체로 형성된 중공의 3차원 형상의 내압탱크를 성형하는 단계; 및 상기 성형된 3차원 형상의 내압탱크 외주면 표면을 코팅하는 단계를 포함한다. A pressure-resistant tank manufacturing method according to an embodiment of the present invention includes the steps of forming a hollow three-dimensional pressure-resistant tank integrally formed by 3D printing a mixed material of engineering plastics; And coating the outer circumferential surface of the molded three-dimensional pressure tank.

여기서, 상기 3차원 형상의 내압탱크를 성형하는 단계는, 플라스틱 혼합재료를 순차적으로 적층하되, 상호 교차되는 방향으로 적층하여 성형하는 단계를 더 포함할 수 있다. Here, the step of forming the pressure-resistant tank having a three-dimensional shape may further include a step of sequentially stacking the plastic mixed materials, stacking them in a direction crossing each other, and molding.

본 발명의 다른 실시예에 따른 내압탱크 제조방법은, 엔지니어링 플라스틱 혼합재료를 3D 프린팅하여 중공의 3차원 형상의 내압탱크를 성형하되, 상기 중공과 연통되는 개구부가 형성되도록 성형하는 단계, 코팅노즐이 상기 개구부상으로 삽입되어 상기 내압탱크 내주면상에 코팅액을 분사하여 코팅하는 단계, 상기 코팅노즐이 상기 개구부 외부로 빠져나온 후, 상기 개구부가 밀폐되도록 3D 프린팅으로 성형하는 단계; 및 상기 성형된 3차원 형상의 내압탱크 외주면 표면을 코팅하는 단계를 포함한다. In a pressure-resistant tank manufacturing method according to another embodiment of the present invention, a pressure-resistant tank having a hollow three-dimensional shape is formed by 3D printing a mixture of engineering plastics, and molding so that an opening communicating with the hollow is formed, the coating nozzle Coating the coating by spraying a coating liquid on the inner circumferential surface of the pressure-resistant tank by being inserted into the opening, forming the coating nozzle by 3D printing so that the opening is sealed after the coating nozzle exits the opening; And coating the outer circumferential surface of the molded three-dimensional pressure tank.

여기서, 상기 코팅노즐은 상기 내압탱크 개구부를 통해 삽입되도록 상하 구동하며, 외주면에 코팅액을 분사하는 적어도 하나 이상의 코팅분사구가 형성될 수 있다. Here, the coating nozzle may be driven up and down so as to be inserted through the inner pressure tank opening, and at least one or more coating injection ports for spraying the coating liquid on the outer circumferential surface may be formed.

본 발명의 일실시예에 따른 3D 프린터는 3D 프린터헤드, 상기 3D 프린터헤드에 형성되며,재료공급부를 통해 재료를 공급받아 재료를 토출 및 적층하여 내압탱크 형상을 일체로 성형하는 성형노즐, 상기 3D 프린터헤드에 형성되며, 노즐의 재료 토출방향으로 코팅재료공급부를 통해 코팅재료를 공급받아 상기 내압탱크 내주면 또는 외주면을 코팅하는 코팅노즐; 및 상기 성형노즐 및 상기 코팅노즐의 작동을 제어하는 제어부;를 포함한다. A 3D printer according to an embodiment of the present invention includes a 3D printer head, a molding nozzle formed on the 3D printer head, and receiving a material through a material supply unit and discharging and laminating the material to integrally form a pressure-resistant tank shape, the 3D A coating nozzle formed on the print head to receive a coating material through a coating material supply unit in a material discharge direction of the nozzle to coat the inner or outer circumferential surface of the inner pressure tank; And a control unit for controlling the operation of the molding nozzle and the coating nozzle.

여기서, 상기 코팅노즐은, 상기 코팅노즐에 수용되어, 상하부로 구동하며 코팅재료를 분사하도록 외주면 및 하단면에 적어도 하나 이상의 코팅분사구가 형성된 구동코팅노즐을 더 포함할 수 있다. Here, the coating nozzle may further include a driving coating nozzle that is accommodated in the coating nozzle, drives upward and downward, and has at least one coating injection port formed on an outer circumferential surface and a lower surface to spray the coating material.

본 발명의 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다.Features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

이에 앞서 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이고 사전적인 의미로 해석되어서는 아니 되며, 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합되는 의미와 개념으로 해석되어야만 한다.Prior to this, terms or words used in the present specification and claims should not be interpreted in a conventional and dictionary meaning, and the inventor may appropriately define the concept of the term in order to describe his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

본 발명의 일실시예에 따르면, 내압탱크의 제조시에 외형을 일체로 형성함으로써 내압특성의 발휘의 신뢰도를 효과적으로 향상시키고, 외관의 균형잡힌 내구성을 유지할 수 있는 효과가 있다. According to an embodiment of the present invention, by integrally forming the outer shape during manufacture of the pressure resistant tank, there is an effect of effectively improving the reliability of exhibiting the pressure resistance characteristics, and maintaining a balanced durability of the exterior.

또한, 3D 프린팅 방식을 적용함으로써 3차원 형상의 일체제작과 더불어, 내압특성을 위한 코팅공정을 일체로 진행함으로써 내압탱크 제작 공정의 리드타임을 효과적을 줄일 수 있을 뿐만 아니라, 적용재료의 채택 및 설계 자유도를 향상시킬 수 있는 효과가 있다. In addition, by applying the 3D printing method, it is possible to effectively reduce the lead time of the pressure-resistant tank production process by integrally manufacturing the three-dimensional shape and integrally performing the coating process for the pressure-resistant characteristics, as well as the adoption and design of the applied materials. There is an effect that can improve the degree of freedom.

또한, 3D 프린팅 방식을 적용함에 있어, 중공의 내압탱크를 제작공정에 내부에 코팅노즐을 삽입하여 내주면을 1차 코팅하고, 전체 형상을 성형한 후, 외주면을 동일한 방식으로 코팅함으로써, 3차원 형상의 일체화된 구조적인 내구성 및 물리적인 안정성과 더불어, 3D 프린팅 제작에 따른 적층방식의 구조물의 내외면의 내압특성 및 내구성을 보다 안정적으로 유지 및 향상시킬 수 있는 효과가 있다. In addition, in applying the 3D printing method, a hollow internal pressure tank is inserted into the manufacturing process to first coat the inner circumferential surface by inserting a coating nozzle, and after molding the entire shape, the outer circumferential surface is coated in the same manner. In addition to the integrated structural durability and physical stability of the 3D printing, it is possible to more stably maintain and improve the pressure resistance characteristics and durability of the inner and outer surfaces of the laminated structure according to the 3D printing production.

도 1은 본 발명의 일실시예에 따른 3D 프린터의 개략 구성도;
도 2는 본 발명의 일실시예에 따른 3D 프린터의 코팅노즐의 부분 확대도;
도 3 내지 도 5는 본 발명의 일실시예에 따른 내압탱크의 제조공정을 도시한 도면; 및
도 6 내지 10은 본 발명의 다른 실시예에 따른 내압탱크의 제조공정을 도시한 도면이다. 1 is a schematic configuration diagram of a 3D printer according to an embodiment of the present invention;
2 is a partial enlarged view of a coating nozzle of a 3D printer according to an embodiment of the present invention;
3 to 5 are views showing a manufacturing process of the pressure-resistant tank according to an embodiment of the present invention; And
6 to 10 are views showing a manufacturing process of a pressure-resistant tank according to another embodiment of the present invention.

본 발명의 일실시예의 목적, 특정한 장점들 및 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예들로부터 더욱 명백해질 것이다. 본 명세서에서 각 도면의 구성요소들에 참조번호를 부가함에 있어서, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 번호를 가지도록 하고 있음에 유의하여야 한다. 또한, "일면", "타면", "제1", "제2" 등의 용어는 하나의 구성요소를 다른 구성요소로부터 구별하기 위해 사용되는 것으로, 구성요소가 상기 용어들에 의해 제한되는 것은 아니다. 이하, 본 발명의 일실시예를 설명함에 있어서, 본 발명의 일실시예의 요지를 불필요하게 흐릴 수 있는 관련된 공지 기술에 대한 상세한 설명은 생략한다. Objects, specific advantages and novel features of an embodiment of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. In adding reference numerals to elements of each drawing in the present specification, it should be noted that, even though they are indicated on different drawings, only the same elements are to have the same number as possible. In addition, terms such as “one side”, “the other side”, “first” and “second” are used to distinguish one component from other components, and the component is limited by the terms no. Hereinafter, in describing one embodiment of the present invention, a detailed description of related known technologies that may unnecessarily obscure the subject matter of the present embodiment will be omitted.

이하, 첨부된 도면을 참조하여, 본 발명의 일실시예를 상세히 설명하기로 하며, 동일한 참조부호는 동일한 부재를 가리킨다. Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals denote the same members.

도 1은 본 발명의 일실시예에 따른 3D 프린터(10)의 개략 구성도이고, 도 2는 본 발명의 일실시예에 따른 3D 프린터(10)의 코팅노즐의 부분 확대도이다.1 is a schematic configuration diagram of a 3D printer 10 according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view of a coating nozzle of a 3D printer 10 according to an embodiment of the present invention.

본 발명의 일실시예에 따른 내압탱크 제작용 3D 프린터(10)는, 3D 프린터(10)헤드, 상기 3D 프린터(10)헤드에 형성되며,재료공급부(12)를 통해 재료를 공급받아 재료를 토출 및 적층하여 내압탱크 형상을 일체로 성형하는 성형노즐(13), 상기 3D 프린터(10)헤드에 형성되며, 노즐의 재료 토출방향으로 코팅재료공급부(14)를 통해 코팅재료를 공급받아 상기 내압탱크 내주면 또는 외주면을 코팅하는 코팅노즐 및 상기 성형노즐(13) 및 상기 코팅노즐의 작동을 제어하는 제어부(16)를 포함한다. The 3D printer 10 for manufacturing a pressure-resistant tank according to an embodiment of the present invention is formed on the 3D printer 10 head, the 3D printer 10 head, and supplies the material through the material supply unit 12 to supply the material. A molding nozzle 13 that integrally forms the pressure-resistant tank shape by discharging and laminating, is formed on the head of the 3D printer 10, and is supplied with a coating material through the coating material supply unit 14 in the material discharge direction of the nozzle, It includes a coating nozzle for coating the inner or outer circumferential surface of the tank, and a control unit 16 for controlling the operation of the forming nozzle 13 and the coating nozzle.

도 1에 도시된 바와 같이, 프린터헤드(11)에는 각각 내압탱크를 3차원 형상으로 제작하기 위한 재료를 공급하는 재료공급부(12)와 재료공급부(12)로부터 재료를 공급받아 실처럼 생긴 필라멘트를 녹여 한층 한층 쌓아서 출력물을 만들어 내는 성형노즐(13)이 형성된다. 이러한 방식은 용융압출적층모델링을 통해 이루어지고, 3D 프린팅을 통해 3차원 형상을 제작하는 방식에는 다양한 방식 및 종류가 적용될 수 있고 특별히 도시된 방법에 제한되는 것은 아니다 .As shown in Fig. 1, the print head 11 includes a material supply unit 12 supplying materials for manufacturing a pressure-resistant tank in a three-dimensional shape, and a filament shaped like a thread by receiving material from the material supply unit 12. A molding nozzle 13 is formed that melts and stacks one more layer to produce an output. This method is achieved through melt extrusion lamination modeling, and various methods and types may be applied to a method of producing a three-dimensional shape through 3D printing, and are not particularly limited to the illustrated method.

성형노즐(13)은 재료공급부(12)를 통해 재료를 공급받아 내압탱크의 3차원 형상을 일체로 형성하게 된다. The molding nozzle 13 is supplied with material through the material supply unit 12 to integrally form the three-dimensional shape of the pressure-resistant tank.

내압탱크와 같은 성형물품은 그 용도 및 물리적으로 갖추어야 할 내압특성이나 내구성을 갖기 위해 3D 프린팅을 통해 적층되어 형성된 3차원 형상의 전면을 코팅처리 하게 할 수 있다. 이러한 코팅처리를 하나의 프린터헤드(11)에서 동시에 또는 순차적으로 수행하기 위해 코팅노즐(15)이 함께 형성된다. 코팅토즐은 성형노즐(13)에 이격되도록 형성되거나 성형노즐(13)과 코팅노즐(15)이 물리적으로 이동 및 순환하면서 내압탱크의 3차원 형상의 제작 및 코팅공정을 하나의 프로세스에서 함께 구현할 수 있다. Molded articles such as pressure-resistant tanks can be coated on the entire surface of a three-dimensional shape formed through 3D printing in order to have the use and the pressure resistance characteristics or durability that must be physically equipped. The coating nozzles 15 are formed together to perform such coating treatment simultaneously or sequentially in one print head 11. The coating nozzle is formed to be spaced apart from the molding nozzle 13, or the molding nozzle 13 and the coating nozzle 15 are physically moved and circulated to realize the production and coating process of the three-dimensional shape of the pressure-resistant tank together in one process. have.

이 경우, 도 1에 도시된 바와 같이, 성형물품(20)이 안착되어 있는 지지판(30)이 이동하면서 각각 성형노즐(13)과 코팅노즐(15)의 해당 작업을 순차적으로 수행할 수 있으며, 상술한 바와 같이, 성형노즐(13) 및 코팅노즐(15)이 물리적인 순환장치를 통해 상호 번갈아가면서 성형물품(20)에 필요한 가공작업을 수행할 수 있음은 물론이다. In this case, as shown in FIG. 1, while the support plate 30 on which the molded article 20 is seated moves, the corresponding operation of the molding nozzle 13 and the coating nozzle 15 can be sequentially performed, As described above, it goes without saying that the molding nozzle 13 and the coating nozzle 15 can alternately perform the processing required for the molded article 20 through a physical circulation device.

제어부(16)는 도시된 성형노즐(13) 및 코팅노즐(15)의 구동순서와 성형된 성형물품(20)의 코팅가공을 위한 위치이동 등 전반적인 내압탱크 제조를 위한 가공순서를 제어하고, 재료공급부(12)와 코팅재료공급부(14)(14)(12)의 원활한 재료의 공급을 통해 내압탱크와 같은 성형물품(20)의 제작공정을 보다 신뢰성 있고 효과적으로 수행할 수 있도록 한다. The control unit 16 controls the overall processing sequence for manufacturing the pressure-resistant tank, such as the driving sequence of the molding nozzle 13 and the coating nozzle 15 shown, and the position movement for coating processing of the molded article 20, and Through the smooth supply of materials from the supply unit 12 and the coating material supply units 14, 14, 12, the manufacturing process of the molded article 20 such as an internal pressure tank can be performed more reliably and effectively.

도 2에 도시된 바와 같이, 코팅노즐(15)은 코팅노즐(15) 내부에 수용되고, 필요에 따라 상하방향으로 연장되도록 구동하는 구동코팅노즐(15-1)을 더 포함할 수 있다. 구동코팅노즐(15-1)은 외주면에 적어도 하나 이상의 코팅분사구(15-1a)를 배치함으로써, 성형물품(20)의 외주면의 코팅뿐만 아니라, 구동코팅노즐(15-1)이 삽입될 수 있는 소정의 공간을 구비하도록 하여 중공의 성형물품(20)의 내부에 삽입되어 제품 내주면의 코팅도 가능하도록 구동할 수 있다. As shown in FIG. 2, the coating nozzle 15 may further include a driving coating nozzle 15-1 that is accommodated in the coating nozzle 15 and is driven to extend in the vertical direction if necessary. The driving coating nozzle 15-1 arranges at least one coating injection port 15-1a on the outer circumferential surface, so that not only the coating on the outer circumferential surface of the molded article 20, but also the driving coating nozzle 15-1 can be inserted. It is inserted into the interior of the hollow molded article 20 by providing a predetermined space, and can be driven to enable coating of the inner peripheral surface of the product.

코팅분사구(15-1a)는 구동코팅노즐(15-1)의 외주면에 형성되어 방사방향으로 분사할 수 있고, 구동코팅노즐(15-1)의 하방향으로 분사할 수 있는 방향 및 성형물품(20)의 코팅 위치에 적절하도록 다양한 방향 및 위치에 배치될 수 있음은 물론이다. The coating injection port 15-1a is formed on the outer circumferential surface of the driving coating nozzle 15-1 and can be sprayed in a radial direction, and a direction and a molded article that can be sprayed in the downward direction of the driving coating nozzle 15-1 ( Of course, it can be arranged in various directions and positions to suit the coating position of 20).

도 3 내지 도 5는 본 발명의 일실시예에 따른 내압탱크의 제조공정을 도시한 도면이다. 3 to 5 are views showing the manufacturing process of the pressure-resistant tank according to an embodiment of the present invention.

이하에서는 도면을 참조하여 본 발명의 일실시예에 따른 내압탱크의 제조공정을 설명하기로 한다. Hereinafter, a manufacturing process of the pressure-resistant tank according to an embodiment of the present invention will be described with reference to the drawings.

먼저, 도 3에 도시된 바와 같이, 재료공급부(12)를 통해 내압탱크를 제작할 엔지니어링플라스틱과 같은 소재를 성형노즐(13)에 공급한다. 성형노즐(13)은 공급된 재료를 통해 적층방식으로 이미 모델링된 3차원의 내압탱크 형상을 적층방식으로 순차적으로 제작하게 된다. 여기서, 일방향의 적층방식으로 적층하여 3차원 형상을 얻는 경우에는 내압탱크의 물리적인 내압특성 및 내구성이 약해질 수 있으므로, 적층방향을 일방향 및 일방향에 교차되는 방향으로 엇갈려 형상의 외주면을 제작함으로써 일체로 제작되는 3차원 형상의 외벽 등의 내구성을 효과적으로 향상시킬 수 있다. First, as shown in FIG. 3, a material such as engineering plastic for manufacturing a pressure-resistant tank is supplied to the molding nozzle 13 through the material supply unit 12. The molding nozzle 13 sequentially manufactures a three-dimensional pressure-resistant tank shape already modeled in a lamination method using the supplied material in a lamination method. Here, in the case of obtaining a three-dimensional shape by stacking in a one-way stacking method, the physical pressure resistance characteristics and durability of the pressure-resistant tank may be weakened, so the stacking direction is alternately arranged in one direction and in a direction crossing one direction to form an outer peripheral surface of It is possible to effectively improve the durability of a three-dimensional outer wall made of.

이러한 방식으로, 도 4에 도시된 바와 같이, 일체로 3차원 형상의 중공을 갖는 내압탱크가 제작된다. In this way, as shown in Fig. 4, an internal pressure tank having a hollow in a three-dimensional shape is manufactured integrally.

다음, 도 5에 도시된 바와 같이, 지지판(30)을 제어부(16)를 통해 구동하여 내압탱크가 코팅노즐(15)의 하부에 위치하게 된다. 코팅노즐(15)은 코팅재료공급부(14)를 통해 전달받은 코팅재료를 하방향으로 분사하게 됨으로써, 내압탱크의 외주면 전면을 코팅하게 된다. 이 경우, 내압탱크 외주면 전면의 원활한 코팅을 위해서 코팅노즐(15)이 고정되어 분사 또는 물리적인 구성을 통해 상하 및 좌우로 구동하도록 제어됨으로써 내압탱크 외주면을 코팅할 수 있음은 물론이다. Next, as shown in FIG. 5, by driving the support plate 30 through the control unit 16, the pressure-resistant tank is positioned under the coating nozzle 15. The coating nozzle 15 sprays the coating material delivered through the coating material supply unit 14 in a downward direction, thereby coating the entire outer circumferential surface of the internal pressure tank. In this case, the coating nozzle 15 is fixed for smooth coating of the entire outer circumferential surface of the internal pressure tank and controlled to be driven vertically and horizontally through spraying or physical configuration, so that the outer circumferential surface of the internal pressure tank can be coated.

이렇게 3차원 형상의 내압탱크를 일체로 제작하게 됨으로써 종래 물리적으로 2분된 형상을 별도 접합하는 공정을 생략할 수 있을 뿐만 아니라, 접합력을 확보하기 위한 최소환의 접합면의 두께 확보 등을 위해 외주면의 두께가 불필요하게 두꺼워질 수 밖에 없는 설계상의 제약을 근본적으로 해결할 수 있는 것이다. 또한, 코팅공정을 추가적으로 수행함으로써, 3D 프린팅을 통한 적층방식의 외주면에 보다 안정적인 내압특성 및 밀폐성을 구현할 수 있게 되는 것이다. By integrally manufacturing the three-dimensional pressure tank, it is possible to eliminate the process of separately joining the two-divided shapes, as well as the thickness of the outer circumferential surface to secure the thickness of the joint surface of the smallest ring to secure the joint force. It is possible to fundamentally solve the design constraints that are inevitably thickened. In addition, by additionally performing the coating process, it is possible to realize more stable pressure resistance and sealing properties on the outer peripheral surface of the lamination method through 3D printing.

도 6 내지 10은 본 발명의 다른 실시예에 따른 내압탱크의 제조공정을 도시한 도면이다. 6 to 10 are views showing a manufacturing process of a pressure-resistant tank according to another embodiment of the present invention.

이하에서는 도면을 참조하여 본 발명의 다른 실시예에 따른 내압탱크의 제조공정을 설명하기로 한다. Hereinafter, a manufacturing process of a pressure-resistant tank according to another embodiment of the present invention will be described with reference to the drawings.

먼저, 도 6에 도시된 바와 같이, 엔지니어링 플라스틱 혼합재료를 재료공급부(12)를 통해 성형노즐(13)을 통해 분사하여 적층방식으로 내압탱크의 외주면의 3차원 형상을 제작하는 단계이다. First, as shown in FIG. 6, it is a step of injecting the engineering plastic mixed material through the molding nozzle 13 through the material supply unit 12 to produce a three-dimensional shape of the outer circumferential surface of the internal pressure tank in a lamination method.

통상적인 적층방식을 적용할 수 있으며, 이 경우 내압탱크의 물리적인 특성을 보다 효과적으로 확보하기 위해, 적층 되는 과정에서 각각의 적층방향을 상호 어긋나는 방향으로 순차적으로 함으로써 외력에 의한 내구성 및 내압을 견디는 특성을 더욱 향상시킬 수 있다. A conventional lamination method can be applied, and in this case, in order to more effectively secure the physical characteristics of the pressure-resistant tank, each lamination direction is sequentially deviated from each other during lamination, thereby enduring durability and internal pressure due to external force. Can be further improved.

다음, 도 7에 도시된 바와 같이, 성형노즐(13)에 의해 내압탱크의 외형을 완성하는 단계이다. 이 경우 중공의 내압탱크의 외형형성과 내부 밀폐성을 확보하기 위한 외형의 3차원 형상을 일체로 제작하게 된다. 이 때는 후술하는 내압탱크의 중공의 내주면을 코팅하기 위해 코팅노즐(15)이 삽입될 수 있는 개구부(50)를 남겨두고 일체로 형성한다. Next, as shown in FIG. 7, it is a step of completing the outer shape of the pressure-resistant tank by the molding nozzle 13. In this case, a three-dimensional shape of the external shape for securing the external shape and internal sealing property of the hollow pressure tank is integrally manufactured. In this case, in order to coat the hollow inner circumferential surface of the pressure tank to be described later, an opening 50 into which the coating nozzle 15 can be inserted is left and integrally formed.

다음, 도 8에 도시된 바와 같이, 완성된 내압탱크의 성형물품(20)을 지지판(30)을 통해 코팅노즐(15)의 작업 위치로 이동시킬 수 있다. 또한, 프린터헤드(11)에 결합된 성형노즐(13) 및 코팅노즐(15)을 물리적으로 순환되는 구조를 형성함으로써, 성형물품(20)의 위치를 고정하고 코팅노즐(15)이 순환 및 이동하여 성형물품(20)의 상부에 위치하도록 형성할 수도 있음은 물론이다. 이때, 제어부(16)의 구성은 성형물품(20)의 위치를 정확하게 센싱 하여 추가적인 코팅공정의 신뢰성을 확보할 수 있다. 코팅노즐(15)은 도 7에서 형성한 개구부(50)를 통해 내압탱크의 중공부에 삽입되도록 코팅노즐(15)에 삽입되어 상하로 구동되는 구동코팅노즐(15-1)을 더 포함할 수 있다. 그러므로, 구동코팅노즐(15-1)이 내압탱크의 개구부(50) 내로 삽입되고, 외주면에 형성된 적어도 하나 이상의 코팅분사구(15-1a)를 통해 내압탱크의 내주면 전면을 코팅하게 된다. 코팅분사구(15-1a)의 배치 및 개수는 내주면의 형태 및 공간의 크기에 따라 적절하게 형성 및 조절할 수 있음은 물론이다. Next, as shown in FIG. 8, the molded article 20 of the finished pressure-resistant tank can be moved to the working position of the coating nozzle 15 through the support plate 30. In addition, by forming a structure in which the molding nozzle 13 and the coating nozzle 15 coupled to the print head 11 are physically circulated, the position of the molded article 20 is fixed and the coating nozzle 15 is circulated and moved. It goes without saying that it can also be formed to be located on the top of the molded article 20. At this time, the configuration of the control unit 16 accurately senses the position of the molded article 20 to secure the reliability of an additional coating process. The coating nozzle 15 may further include a driving coating nozzle 15-1 that is inserted into the coating nozzle 15 so as to be inserted into the hollow portion of the pressure-resistant tank through the opening 50 formed in FIG. 7 and driven up and down. have. Therefore, the driving coating nozzle (15-1) is inserted into the opening (50) of the internal pressure tank, and coats the entire surface of the inner peripheral surface of the internal pressure tank through at least one coating injection port (15-1a) formed on the outer peripheral surface. It goes without saying that the arrangement and number of the coating injection ports 15-1a can be appropriately formed and adjusted according to the shape of the inner peripheral surface and the size of the space.

다음, 도 9에 도시된 바와 같이, 다시 내압탱크의 성형물품(20)을 성형노즐(13)의 가공위치로 지지판(30)을 움직여 이동시킨다. 개구부(50) 부분을 성형노즐(13)을 통해 밀폐를 확보하도록 마지막 추가 성형을 시작한다. Next, as shown in FIG. 9, the molded article 20 of the pressure-resistant tank is moved by moving the support plate 30 to the processing position of the molding nozzle 13 again. The last additional shaping is started to ensure that the opening 50 is sealed through the shaping nozzle 13.

마지막으로, 도 10에 도시된 바와 같이, 일체화된 3차원 형상의 내압탱크를 코팅노즐(15)의 가공위치로 지지판(30)을 통해 다시 이동시킨 후, 최종적으로 내압탱크의 외주면 전면을 코팅노즐(15)을 통해 코팅가공한다. 내압탱크의 일반적인 형상을 예로 들었지만, 성형물품(20)의 외주면의 형태 및 크기에 따라, 코팅노즐(15)의 코팅분사 위치 및 방식을 적절히 조절될 수 있으며, 상술한 구동코팅노즐(15-1)을 구동시켜 외주면 전면을 효과적으로 코팅처리할 수 있다.Finally, as shown in FIG. 10, after moving the integrated three-dimensional pressure tank back to the processing position of the coating nozzle 15 through the support plate 30, finally, the entire outer peripheral surface of the pressure tank is coated with the nozzle. Coating is processed through (15). Although the general shape of the pressure-resistant tank was exemplified, depending on the shape and size of the outer circumferential surface of the molded article 20, the coating injection position and method of the coating nozzle 15 can be appropriately adjusted, and the drive coating nozzle 15-1 described above. ), the entire outer circumferential surface can be effectively coated.

본 발명의 일실시예 및 다른 실시예에 따른 내압탱크의 제조공정에서, 내압탱크를 성형하는 성형노즐(13) 및 코팅처리를 위한 코팅노즐(15)은 각각의 물리적인 위치를 별도의 구동수단을 통해 제어부(16)가 적절히 조절하여 성형 및 코팅처리를 수행할 수 있으며, 도시된 지지판(30)을 통한 각 단계의 가공처리된 내압탱크의 성형물품(20)을 원하는 가공위치로 조절할 수 있음은 물론이다. In the manufacturing process of a pressure-resistant tank according to one embodiment and another embodiment of the present invention, the molding nozzle 13 for forming the pressure-resistant tank and the coating nozzle 15 for coating treatment are separate driving means for each physical position. Through the control unit 16 appropriately adjusted to perform the molding and coating treatment, and the molded article 20 of the processed pressure-resistant tank at each step through the illustrated support plate 30 can be adjusted to a desired processing position. Of course.

본 발명의 일실시예 및 다른 실시예에 따른 내압탱크의 제조방법은 상술한 본 발명의 일실시예에 따른 3D 프린터(10)를 이용할 수 있으며, 각 개별 구성의 작동 및 기능은 관련 제조방법에서 충분히 발휘될 수 있도록 당업자에 의한 설계변경이 가능함은 당업자로부터 자명한 사항이므로 이에 대한 중복되는 상세 설명은 생략하기로 한다. The manufacturing method of the pressure-resistant tank according to one embodiment and another embodiment of the present invention can use the 3D printer 10 according to the embodiment of the present invention described above, and the operation and function of each individual component is in the related manufacturing method. It is obvious from those skilled in the art that design changes by those skilled in the art can be sufficiently exhibited, and thus, a detailed description of redundant details thereof will be omitted.

이상 본 발명을 구체적인 실시예를 통하여 상세히 설명하였으나, 이는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명은 이에 한정되지 않으며, 본 발명의 기술적 사상 내에서 당해 분야의 통상의 지식을 가진 자에 의해 그 변형이나 개량이 가능함은 명백하다고 할 것이다. Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the present invention is not limited thereto, and within the technical scope of the present invention, those of ordinary skill in the art It would be clear that the transformation or improvement is possible.

본 발명의 단순한 변형 내지 변경은 모두 본 발명의 영역에 속하는 것으로 본 발명의 구체적인 보호 범위는 첨부된 특허청구범위에 의하여 명확해질 것이다.All simple modifications to changes of the present invention belong to the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

10: 3D 프린터 11: 프린터헤드
12: 재료공급부 13: 성형노즐
14: 코팅재료공급부 15: 코팅노즐
15-1: 구동코팅노즐 15-1a: 코팅분사구
16: 제어부 20: 성형물품
30: 지지판 50: 개구부 10: 3D printer 11: printhead
12: material supply unit 13: forming nozzle
14: coating material supply unit 15: coating nozzle
15-1: drive coating nozzle 15-1a: coating injection port
16: control unit 20: molded article
30: support plate 50: opening

Claims (6)

삭제delete 삭제delete 엔지니어링 플라스틱 혼합재료를 3D 프린팅하여 중공의 3차원 형상의 내압탱크를 성형하되, 상기 중공과 연통되어 상기 내압탱크 내부로 코팅노즐이 삽입될 수 있는 개구부가 형성되도록 성형하는 단계;
상기 코팅노즐이 상기 개구부상으로 삽입되어 상기 내압탱크 내부의 내주면상에 코팅액을 분사하여 코팅하는 단계;
상기 코팅노즐은 상기 내압탱크 내주면을 코팅한 후, 상기 개구부 외부로 빠져나온 후, 성형노즐을 통해 상기 개구부를 밀폐하도록 3D 프린팅으로 성형하여 상기 내압탱크의 내부 밀폐성을 확보하는 단계; 및
상기 성형된 3차원 형상의 내압탱크 외주면 표면을 상기 코팅노즐을 통해 코팅하는 단계;를 포함하는 내압탱크 제조방법.3D printing the engineering plastic mixed material to form a hollow three-dimensional pressure-resistant tank, and forming an opening through which the coating nozzle can be inserted into the pressure-resistant tank through communication with the hollow;
Coating the coating nozzle by spraying a coating solution onto the inner circumferential surface of the inner pressure tank by inserting the coating nozzle onto the opening;
The coating nozzle is formed by 3D printing to seal the opening through a molding nozzle after coating the inner circumferential surface of the pressure-resistant tank, and after exiting from the opening, securing the internal sealing property of the pressure-resistant tank; And
Coating the surface of the outer circumferential surface of the molded three-dimensional pressure tank through the coating nozzle. 청구항 3에 있어서,
상기 코팅노즐은 상기 내압탱크 개구부를 통해 삽입되도록 상하 구동하며, 외주면에 코팅액을 분사하는 적어도 하나 이상의 분사구가 형성된 내압탱크의 제조방법.The method of claim 3,
The coating nozzle is driven up and down so as to be inserted through the opening of the pressure tank, and at least one injection port for spraying the coating liquid is formed on the outer circumferential surface of the pressure resistant tank. 3D 프린터헤드;
상기 3D 프린터헤드에 형성되며, 재료공급부를 통해 재료를 공급받아 재료를 토출 및 적층하여 내압탱크 형상을 일체로 성형하는 성형노즐;
상기 3D 프린터헤드에 형성되며, 노즐의 재료 토출방향으로 코팅재료공급부를 통해 코팅재료를 공급받아 상기 내압탱크 내부로 삽입가능한 개구부를 상기 성형노즐에 의해 성형한 후, 상기 개구부를 통해 상기 내압탱크 내주면을 코팅한 후, 상기 개구부를 상기 성형노즐에 의해 밀폐한 후 상기 내압탱크 외주면을 코팅하는 코팅노즐; 및
상기 성형노즐 및 상기 코팅노즐의 작동을 제어하는 제어부;를 포함하는 내압탱크 제작용 3D 프린터. 3D printhead;
A forming nozzle formed on the 3D printer head, receiving a material through a material supply unit, discharging and laminating the material, and integrally forming a pressure-resistant tank shape;
An opening formed on the 3D printer head, receiving a coating material through a coating material supplying part in a material discharge direction of the nozzle, and forming an opening insertable into the internal pressure tank by the molding nozzle, and then forming the inner peripheral surface of the internal pressure tank through the opening A coating nozzle for coating the outer circumferential surface of the internal pressure tank after coating the opening with the molding nozzle; And
A 3D printer for manufacturing a pressure-resistant tank comprising a; a control unit for controlling the operation of the molding nozzle and the coating nozzle. 청구항 5에 있어서,
상기 코팅노즐은,
상기 코팅노즐에 수용되어, 상하부로 구동하며 코팅재료를 분사하도록 외주면 및 하단면에 적어도 하나 이상의 코팅분사구가 형성된 구동코팅노즐을 더 포함하는 내압탱크 제작용 3D 프린터. The method of claim 5,
The coating nozzle,
A 3D printer for manufacturing an internal pressure tank further comprising a driving coating nozzle accommodated in the coating nozzle, driving upward and downward, and having at least one coating injection port formed on an outer circumferential surface and a lower surface to spray the coating material.
KR1020170051529A 2017-04-21 2017-04-21 3D Printer for making Pressure Tank and method for manufacturing Pressure Tank using the saem KR102152351B1 (en)

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JP2006192710A (en) * 2005-01-13 2006-07-27 Sekisui Chem Co Ltd Molten resin extruding, laminating and shaping method and apparatus therefor

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