KR102019367B1 - Three-dimensional object - Google Patents

Three-dimensional object Download PDF

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KR102019367B1
KR102019367B1 KR1020170126231A KR20170126231A KR102019367B1 KR 102019367 B1 KR102019367 B1 KR 102019367B1 KR 1020170126231 A KR1020170126231 A KR 1020170126231A KR 20170126231 A KR20170126231 A KR 20170126231A KR 102019367 B1 KR102019367 B1 KR 102019367B1
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South Korea
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powder
temperature
roller
work table
bed
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KR1020170126231A
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Korean (ko)
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KR20190036838A (en
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김보경
박희준
전아영
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(주)센트롤
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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
    • 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
    • B29C64/218—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/60—Planarisation devices; Compression devices
    • B22F12/63—Rollers
    • 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
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • 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
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • 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
    • B29C64/194—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
    • 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
    • B29C64/227—Driving means
    • 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
    • B29C64/245—Platforms or substrates
    • 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
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • 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
    • B29C64/295—Heating elements
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

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

Abstract

본 발명은 분말소재가 적층 조형되는 작업테이블; 상기 작업테이블로 분말을 공급하는 분말 공급부; 상기 작업테이블 상부에 위치하여, 분말 공급부에서 공급된 분말을 평탄화 시키는 롤러;를 포함하고, 상기 롤러는, 분말을 평탄화 시킬 때, 분말의 온도를 유지하는 삼차원 프린터를 제공한다.The present invention is a work table in which the powder material is laminated molding; A powder supply unit supplying powder to the work table; Located at the top of the work table, the roller for flattening the powder supplied from the powder supply unit; includes, the roller provides a three-dimensional printer that maintains the temperature of the powder when flattening the powder.

Description

삼차원 프린터{THREE-DIMENSIONAL OBJECT}3D Printer {THREE-DIMENSIONAL OBJECT}

본 발명은 삼차원 프린터에 관한 것이다. The present invention relates to a three-dimensional printer.

일반적으로, CAD 프로그램으로 설계한 컴퓨터 파일에서 입체로 된 기계 부품 등을 인쇄하듯 실물모형을 만드는 장치를 삼차원 프린터라고 하며, 삼차원 프린터의 발전과 확산이 제조업계의 화두로 등장하였다.In general, a device for making a physical model is a three-dimensional printer, such as printing three-dimensional mechanical parts from computer files designed by CAD programs, the development and proliferation of three-dimensional printer has emerged as a topic of the manufacturing industry.

삼차원 프린터 방식에는 광경화성 수지에 레이저 광선을 주사하여 주사된 부분이 경화되는 원리를 이용한 SLA(Stereo Lithographic Apparatus)와, SLA에서의 광경화성 수지 대신에 기능성 고분자 또는 금속 분말을 사용하며 레이저 광선을 주사하여 고결(固結)시켜 성형하는 원리를 이용한 SLS(Selective Laser Sintering)와, 접착제가 칠해져 있는 종이를 원하는 단면으로 레이져 광선을 이용하여 절단하여 한층씩 적층하여 성형하는 LOM(Laminated Object Manufacturing)과, 잉크젯(Ink-Jet) 프린터 기술을 이용한 BPM(Ballistic Particle Manufacturing) 등이 있다. 레이저 기반 방법들은 1980년대 초반/1990년대 초반에 미국 오스틴의 UOT(University of Texas)에서 개발되었으며, 3D 프린팅 또는 선택적 레이저 소결로서 공지되어 있다.In the three-dimensional printer method, SLA (Stereo Lithographic Apparatus) using the principle that the scanned portion is cured by scanning a laser beam on the photocurable resin, and a functional polymer or metal powder is used instead of the photocurable resin in the SLA, and the laser beam is scanned. SLS (Selective Laser Sintering) using the principle of forming and solidifying by molding, LOM (Laminated Object Manufacturing) for cutting and laminating the paper coated with adhesive to the desired cross section by laminating with laser beam, Ballistic Particle Manufacturing (BPM) using Ink-Jet printer technology. Laser-based methods were developed at the University of Texas (UOT) in Austin, USA in the early 1980s / early 1990s and are known as 3D printing or selective laser sintering.

SLS 기술로 종래의 중합체 분말을 비롯한 다양한 분말 물질로부터 높은 해상도 및 치수정밀도를 갖는 3차원 물품의 직접적 제조가 가능해졌다. SLS(Selective Laser Sintering)은 그 전문이 본원에 참고로 인용된 미국 특허 제4,863,568호에 기재되어 있다. 선택적 레이저 소결법은 디티엠 코포레이션(DTM Corporation)에 의해 상용화되었다. 선택적 레이져 소결법은 얇은 분말층을 평면상에 펴는 것을 포함한다.SLS technology has enabled the direct manufacture of three-dimensional articles with high resolution and dimensional accuracy from a variety of powder materials, including conventional polymer powders. Selective Laser Sintering (SLS) is described in US Pat. No. 4,863,568, which is incorporated by reference in its entirety. Selective laser sintering was commercialized by DTM Corporation. Selective laser sintering involves spreading a thin powder layer on a plane.

작업대는 인쇄헤드에 대해 좌표계에서 X, Y, Z의 세 축 방향 또는 일부 방향으로(인쇄헤드가 움직이는 제품도 있음) 이동하며 분말소재가 작업대 상의 정해진 위치에 적층하게 된다. 이러한 작업대의 이동은 작업대와 연결된 스크류 등에 의해 각 축 방향의 이동이 정확히 제어됨으로써 분말소재가 정확한 위치에 적층된다.The workbench moves relative to the printhead in three or some directions (some products move the printhead) in the coordinate system X, Y, and Z, and the powder material is deposited at a fixed position on the workbench. The movement of the workbench is precisely controlled by the screw and the like connected to the workbench, so that the powder material is laminated at the correct position.

이러한 삼차원 프린터는, 작업테이블 상부 즉 베드에 분말이 적층된다. 이 때, 베드에 분말을 평탄화 시키는 작업을 롤러가 수행한다. In such a three-dimensional printer, powder is laminated on a work table, that is, a bed. At this time, the roller performs the work of flattening the powder on the bed.

베드에 적층되는 분말은 분말 공급부에서 정해진 온도에서 공급된다.The powder deposited on the bed is supplied at a predetermined temperature in the powder supply.

그러나, 베드에 적층되면서 정해진 온도를 유지하기엔 부족할 뿐만 아니라, 성형되는 제품의 정밀도를 하향시키는 문제점이 있었다.However, not only is it insufficient to maintain a predetermined temperature while being laminated to the bed, there is a problem of lowering the precision of the molded product.

본 발명은 상기와 같은 문제점을 해소하기 위하여, 성형물을 작업하기 위해, 작업테이블에 분말층을 쌓아가는 과정에서, 베드에서도 온도를 유지할 수 있는 삼차원 프린터를 제공하는데 그 목적이 있다.The present invention is to provide a three-dimensional printer that can maintain the temperature in the bed in the process of stacking the powder layer on the work table, in order to solve the above problems, to work the molding.

상기와 같은 목적을 달성하기 위하여, 본 발명은 분말소재가 적층 조형되는 작업테이블; 상기 작업테이블로 분말을 공급하는 분말 공급부; 상기 작업테이블 상부에 위치하여, 분말 공급부에서 공급된 분말을 평탄화 시키는 롤러;를 포함하고, 상기 롤러는, 분말을 평탄화 시킬 때, 분말의 온도를 유지할 수 있다.In order to achieve the above object, the present invention is a work table is laminated molding molding powder material; A powder supply unit supplying powder to the work table; Located at the top of the work table, a roller for flattening the powder supplied from the powder supply unit; includes, the roller, it is possible to maintain the temperature of the powder when flattening the powder.

상기 롤러는, 내부에 삽입되어, 분말의 온도를 유지하기 위해 설치되는 열선부와, 상기 열선부를 고정시키는 고정부와, 상기 열선부의 열을 유지시키는 온도유지부를 더 포함할 수 있다.The roller may further include a hot wire part inserted therein and installed to maintain the temperature of the powder, a fixing part for fixing the hot wire part, and a temperature holding part for maintaining the heat of the hot wire part.

상기 고정부는, 내부에 유체가 삽입될 수 있다.The fixing portion may be inserted into the fluid.

상기 열선부는, 유체를 가열할 수 있다.The hot wire unit may heat the fluid.

상기 온도유지부는, 단열재일 수 있다.The temperature maintaining part may be a heat insulating material.

본 발명에 따른 삼차원 프린터는 성형물을 작업하기 위해, 작업테이블에 분말층을 쌓아가는 과정에서, 베드에서도 온도를 유지할 수 있는 효과를 갖는다.The three-dimensional printer according to the present invention has the effect of maintaining the temperature in the bed in the process of stacking the powder layer on the work table, in order to work the molding.

이로 인해, 성형되는 제품이 원하는 형태로 제작됨으로써, 성형 정밀도를 향상시킬 수 있는 효과를 갖는다.For this reason, since the product to be shape | molded is manufactured in a desired form, it has the effect which can improve molding precision.

도 1은 본 발명의 일 실시예에 의한 삼차원 프린터를 나타낸 도면,
도 2는 도 1에 도시된 삼차원 프린터의 롤러를 나타낸 도면,
도 3은 도 2에 도시된 롤러의 결합 사시도를 나타낸 도면이다.1 is a view showing a three-dimensional printer according to an embodiment of the present invention,
2 is a view showing a roller of the three-dimensional printer shown in FIG.
3 is a view showing a perspective view of the combination of the roller shown in FIG.

이하, 첨부된 도면에 의거하여 본 발명에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조 부호를 붙이도록 한다.In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

또한, 본 명세서 및 특허청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정하여 해석되어서는 안되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Also, the terms or words used in the specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly define the concept of terms in order to explain their invention in the best way. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 의한 삼차원 프린터를 나타낸 도면이고, 도 2는 도 1에 도시된 삼차원 프린터의 롤러를 나타낸 도면이며, 도 3은 도 2에 도시된 롤러의 결합 사시도를 나타낸 도면이다.1 is a view showing a three-dimensional printer according to an embodiment of the present invention, Figure 2 is a view showing a roller of the three-dimensional printer shown in Figure 1, Figure 3 is a view showing a combined perspective view of the roller shown in FIG. to be.

도 1 내지 도 3을 참조하면, 본 발명에 따른 삼차원 프린터는 챔버(10)와, 작업테이블(100)과, 분말 공급부(200)와, 롤러(300)를 포함한다.1 to 3, the three-dimensional printer according to the present invention includes a chamber 10, a work table 100, a powder supply unit 200, and a roller 300.

작업테이블(100)은, 챔버(10) 내부에 설치되어, 분말이 다수의 분말층으로 순차적으로 적층된다. 또한 작업테이블(100)은 베드(110)를 포함할 수 있다. 여기서 베드(110)는 상부에 분말이 적층될 수 있다. 즉 베드(110)에는 분말층이 순착적으로 적층되면서 제조하고자 하는 제품으로 용착될 수 있다. 또한 베드(110)는 하방에 피스톤(120)이 설치된다. 피스톤(120)은 z축 방향으로 수직 이동할 수 있다. 또한 베드(110)는 상면에 놓여진 분말소재가, 챔버(10) 내부에 위치하고, 베드(110) 상부에 설치되는 레이저에 의해 소결되면, 피스톤(120)에 의해 아래로 수직 하강하여 소결된 분말소재 위에 새로운 분말소재가 일정두께로 적층될 수 있도록 한다. The work table 100 is provided inside the chamber 10, and powders are sequentially stacked into a plurality of powder layers. Work table 100 may also include a bed (110). Here, the bed 110 may be a powder laminated on the top. That is, the bed 110 may be deposited as a product to be manufactured while the powder layer is deposited sequentially. In addition, the bed 110 is provided with a piston 120 below. The piston 120 may move vertically in the z-axis direction. In addition, the bed 110 is a powder material placed on the upper surface, when the powder material is located inside the chamber 10, and sintered by a laser installed on the bed 110, the powder material sintered vertically down by the piston 120 The new powder material can be laminated on a certain thickness.

분말 공급부(200)는 분말 저장부(210)와 더불어 베드(110)와 일렬로 배치되는 것이 바람직하다. 코터키가 분말 공급부(200)에서 베드(110)로 이동하면서 베드(110)의 상부에 분말층을 평탄하게 형성하게 하고, 코터기(220)가 베드(110)에서 분말 공급부(200)로 이동하면서 베드(110)에 분말층을 형성하고 남은 분말이 분말 저장부(210)로 이동되면서 저장되게 된다.The powder supply unit 200 may be disposed in line with the bed 110 together with the powder storage unit 210. The coater key moves from the powder supply part 200 to the bed 110 to form a powder layer on the upper part of the bed 110, and the cotter 220 moves from the bed 110 to the powder supply part 200. While the powder layer is formed on the bed 110, the remaining powder is stored while being moved to the powder storage unit 210.

코터기(220)는 별도의 이동부재(미도시) 및 진공부재(미도시)를 포함하는 것이 바람직하다. 이동부재(미도시)는 코터기(220)를 베드(110)의 상부에서 좌우로 이동시키는 역할을 하고, 진공부재(미도시)는 코터기(220)가 분말 공급부(200)에 저장된 분말을 흡입 후 베드(110)의 상부로 배출하는 역할을 한다.The coater 220 preferably includes a separate moving member (not shown) and a vacuum member (not shown). The moving member (not shown) serves to move the coater 220 from side to side from the top of the bed 110, the vacuum member (not shown) is the coater 220 to the powder stored in the powder supply unit 200 After inhalation serves to discharge to the top of the bed (110).

또한 분말 공급부(200) 및 분말 저장부(210)는 별도의 승하강기구(230)와 연결되어 승하강기구(230)의 동작에 의해 챔버(10)의 내부에서 상하로 슬라이딩 이동하면서 승강 및 하강하게 된다. 승하강기구(230)는 제어부(미도시)에 의해 제어되므로 베드(110)의 승하강은 제어부(미도시)에 의해 제어된다.In addition, the powder supply unit 200 and the powder storage unit 210 is connected to a separate lifting mechanism 230, the lifting and lowering while moving up and down inside the chamber 10 by the operation of the lifting mechanism 230 Done. Since the elevating mechanism 230 is controlled by a controller (not shown), the raising and lowering of the bed 110 is controlled by the controller (not shown).

롤러(300)는, 작업테이블(100) 상부에 위치하여, 작업테이블(100) 상부에 분말 공급부(200)에서 공급된 분말을 평탄화시킨다. 이러한 롤러(300)는 분말을 평탄화 시킬 때, 분말 공급부(200)에 정해진 온도를 작업테이블(100)에서도 유지할 수 있도록 설치된다. 이를 위해, 롤러(300)는 열선부(310)와, 고정부(320) 및 온도유지부(330)를 더 포함할 수 있다. 여기서 열선부(310)는 롤러(300) 내부에 삽입되어, 분말의 온도를 유지하기 위해 설치될 수 있다. 이러한 열선부(310)는 열선일 수 있다. 다만 이는 예시일 뿐, 열선과 같이 열을 가하는 재질이면 그 재질로 대체 가능하다. 예를 들면, 히터로도 사용될 수 있다. 그리고 고정부(320)는 열선부(310)를 도시된 도 2와 같이, 고정부(320) 외측 둘레를 따라, 감겨 고정시킬 수 있다. 또한, 고정부(320) 내부에는 액체가 수용될 수 있다. 이로서 열선부(310)는 고정부(320) 내부에 수용된 액체를 가열할 수 있다. 그러나, 고정부(320)에는 액체가 수용되지 않을 수 있고, 이러한 고정부(320)는 열을 발열하기 적합한 금속일 수 있다. The roller 300 is positioned above the work table 100 to planarize the powder supplied from the powder supply unit 200 to the work table 100. When the roller 300 is to flatten the powder, the roller 300 is installed to maintain a predetermined temperature in the work table 100. To this end, the roller 300 may further include a hot wire portion 310, a fixing portion 320 and a temperature maintaining portion 330. Here, the heating wire 310 may be inserted into the roller 300 to be installed to maintain the temperature of the powder. The hot wire unit 310 may be a hot wire. However, this is only an example, and may be replaced with a material that applies heat such as a heating wire. For example, it can also be used as a heater. In addition, the fixing unit 320 may wind and fix the hot wire unit 310 along the outer circumference of the fixing unit 320 as shown in FIG. 2. In addition, the liquid may be accommodated in the fixing part 320. As a result, the hot wire part 310 may heat the liquid contained in the fixing part 320. However, the fixing part 320 may not contain liquid, and the fixing part 320 may be a metal suitable for generating heat.

한편, 도시되지 않았지만, 열선부(310)는 고정부(320) 내부에 액체가 삽입되지 않았을 경우, 고정부(320) 내부에 위치될 수 있다. 이렇게 되면, 고정부(320) 내부에 제2고정부가 삽입될 수 있다.Although not shown, the heating wire 310 may be located inside the fixing part 320 when no liquid is inserted into the fixing part 320. In this case, the second fixing part may be inserted into the fixing part 320.

그리고 온도유지부(330)는 열선부(310)의 열을 유지시키기 위해 설치될 수 있다. 이러한 온도유지부(330)는 열선부(310)에서 발열되는 열을 일정하게 공급시켜줄 수 있다. 즉, 온도유지부(330)는 단열재일 수 있다. 다만 이는 예시일 뿐, 단열이 가능한 재질이면 그 재질로 대체 가능하다. 또한, 온도유지부(330)는 롤러(300)가 회전하게 될 때, 열선부(310) 및 고정부(320)를 고정시키는 역할을 수행할 수 있다.The temperature maintaining part 330 may be installed to maintain the heat of the hot wire part 310. The temperature maintaining part 330 may supply the heat generated by the hot wire part 310 constantly. That is, the temperature maintaining part 330 may be a heat insulating material. However, this is only an example, and may be replaced with a material that can insulate. In addition, the temperature maintaining part 330 may serve to fix the hot wire part 310 and the fixing part 320 when the roller 300 rotates.

이와 같이 본 발명에 따른 삼차원 프린터는, 성형물을 작업하기 위해, 작업테이블(100)에 분말층을 쌓아가는 과정에서, 베드(110)에서도 온도를 유지할 수 있는 효과를 갖는다.As described above, the three-dimensional printer according to the present invention has the effect of maintaining the temperature in the bed 110 in the process of stacking the powder layer on the worktable 100 to work the molding.

이로 인해, 성형되는 제품이 원하는 형태로 제작됨으로써, 성형 정밀도를 향상시킬 수 있는 효과를 갖는다.For this reason, since the product to be shape | molded is manufactured in a desired form, it has the effect which can improve molding precision.

본 발명은 도면에 도시된 실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시 예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10 : 챔버
100 : 작업테이블
110 : 베드
120 : 피스톤
200 : 분말 공급부
210 : 분말 저장부
220 : 코터기
230 : 승하강기구
300 : 롤러
310 : 열선부
320 : 고정부
330 : 온도유지부10: chamber
100: worktable
110: bed
120: piston
200: powder supply unit
210: powder storage unit
220: cotter
230: lifting mechanism
300: roller
310: hot wire part
320: fixed part
330: temperature holding unit

Claims (5)

내부공간에서, 마주보게 배열되는 분말공급부와 분말저장부와 함께 상기 분말공급부와 상기 분말저장부를 옮겨 다니는 코터기를 포함하는 챔버;
상기 분말공급부와 상기 분말저장부 사이에 위치되어, 상기 분말공급부로부터 상기 코터기에 흡입된 분말이 상기 코터기를 통해 분말소재가 적층되는 작업테이블; 및
상기 작업테이블 상부에 위치하여, 분말 공급부에서 공급된 분말을 평탄화 시키는 롤러;를 포함하고,
상기 롤러는,
분말을 평탄화 시킬 때, 분말의 온도를 유지하기 위해,
내부에 삽입되어, 분말의 온도를 유지하기 위해 설치되는 열선부와,
상기 열선부를 고정시키는 고정부와,
상기 열선부의 열을 유지시키는 온도유지부를 포함하고,
상기 고정부는 내부에 유체가 삽입되고,
상기 열선부는 유체를 가열하고,
상기 온도유지부는 단열재인 삼차원 프린터.
A chamber including a coater for moving the powder supply part and the powder storage part together with the powder supply part and the powder storage part arranged to face each other in an inner space;
A work table positioned between the powder supply part and the powder storage part, in which powder sucked into the coater from the powder supply part is laminated with powder material through the coater; And
Located at the top of the work table, the roller for flattening the powder supplied from the powder supply unit; includes;
The roller,
When leveling the powder, to maintain the temperature of the powder,
A hot wire portion inserted into the inside and installed to maintain the temperature of the powder,
A fixing part for fixing the hot wire part;
It includes a temperature holding unit for maintaining the heat of the hot wire portion,
The fixed portion is inserted into the fluid,
The heating wire heats the fluid,
The temperature maintaining part is a three-dimensional printer is a heat insulating material.
삭제delete 삭제delete 삭제delete 삭제delete
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