KR20190019545A - Three-dimensional object - Google Patents

Three-dimensional object Download PDF

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Publication number
KR20190019545A
KR20190019545A KR1020170104647A KR20170104647A KR20190019545A KR 20190019545 A KR20190019545 A KR 20190019545A KR 1020170104647 A KR1020170104647 A KR 1020170104647A KR 20170104647 A KR20170104647 A KR 20170104647A KR 20190019545 A KR20190019545 A KR 20190019545A
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South Korea
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powder
blade
vibration
work table
quot
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KR1020170104647A
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Korean (ko)
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김보경
박성우
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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
    • B29C64/214—Doctor blades
    • 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
    • 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
    • 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
    • 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
    • B29C64/25—Housings, e.g. machine housings
    • 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
    • B29C64/30—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules

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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

According to the present invention, provided is a three-dimensional printer, which comprises: a chamber in which an inner space is formed; a worktable installed inside the chamber and sequentially stacking powders into a plurality of powder layers; a powder supply part supplying a powder to an upper portion of the worktable; a blade sucking the powder of the powder supply part and discharging the powder onto the worktable; and a vibration absorbing part installed at one side of the blade and absorbing unnecessary vibration using reverse rotation of vibration due to the movement of the blade. By absorbing vibration when moving to left and right, a powder layer accumulated on the worktable can be prevented from being shaken. Therefore, a molded product is manufactured in a desired shape, thereby improving molding accuracy.

Description

삼차원 프린터{Three-dimensional object}A three-dimensional printer

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

대한민국 등록특허 제1705696호에 기재된 배경기술을 참조하면, 일반적으로 프린터는 프린트 대상물에 문자, 도안 등을 인쇄하는 장치를 의미하며, 컴퓨터에 연결하여 지면에 인쇄하는 프린터 장치 등은 업무용, 가정용으로 널리 사용되고 있다.[0003] Referring to the background art described in Korean Patent No. 1705696, a printer generally refers to a device that prints letters, figures, etc. on a print object. Printer devices that are connected to a computer and print on the paper are widely used for business, .

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.Generally, as a three-dimensional printer, a device that creates a real model as if it prints three-dimensional machine parts in a computer file designed by a CAD program is called a three-dimensional printer.

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) which uses the principle that a scanned portion is cured by injecting a laser beam to a photo-curing resin and a functional polymer or metal powder are used in place of the photo- SLS (Selective Laser Sintering) using the principle of solidification and molding, Laminated Object Manufacturing (LOM) in which the adhesive-coated paper is cut by a laser beam in a desired cross section and laminated to form a layer, And Ballistic Particle Manufacturing (BPM) using Ink-Jet printer technology. Laser-based methods were developed at the University of Texas at UOT in Austin, USA in the early 1980's / early 1990's 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 production 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 U.S. Patent No. 4,863,568, which is incorporated herein by reference in its entirety. Selective laser sintering was commercialized by DTM Corporation. Selective laser sintering involves spreading a thin layer of powder on a flat surface.

분말은 카운터-롤링(counter-rolling) 메카니즘 또는 카운터-롤러(counter-roller)로 당업계에 알려진, 선택적 레이저 소결법에 사용하기 위해 개발된 도구를 사용하여 작업대 위에 펼친다. 연속적인 분말층들을 카운터-롤러를 사용하여 이미 형성된 층 상에 편 후, 레이저로 소결 또는 용융시킨다. 분말층을 표면상에 편 후, 레이저를 사용하여 레이저 에너지를 예정된 2차원 패턴으로 분말상에 가한다. 레이저는 레이저 빔 에너지가 충돌한 영역에서 분말을 함께 소결 또는 용융시킨다. 분말은 플라스틱, 금속, 중합체, 세라믹 또는 복합체일 수 있다.The powder is spread on a worktable using a tool developed for use in a selective laser sintering process known in the art as a counter-rolling mechanism or a counter-roller. Continuous powder layers are sieved on a layer that has already been formed using a counter-roller and then sintered or melted with a laser. After the powder layer is deposited on the surface, the laser energy is applied to the powder in a predetermined two-dimensional pattern using a laser. The laser sinter or melt the powder together in the region where the laser beam energy impinges. The powder may be a plastic, a metal, a polymer, a ceramic or a composite.

그러나, 종래 삼차원 프린터의 경우, 성형물을 작업하기 위해, 작업테이블에 분말층을 쌓아가는 과정에서, 블레이드가 좌, 우로 움직인다.However, in the conventional three-dimensional printer, in order to work a molded product, in the process of stacking a powder layer on a work table, the blade moves left and right.

이때, 블레이드에 움직임에 의해, 분말층을 쌓는 것이 불안정하게 쌓여, 용착이 제대로 되지 않아, 성형되는 제품의 정밀도를 하향시키는 문제점이 있었다.At this time, accumulation of the powder layer is unstably piled up by the movement of the blade, so that the welding is not properly performed, and there is a problem that the precision of the molded product is lowered.

본 발명은 상기와 같은 문제점을 해결하기 위해 창출된 것으로서, 성형물을 작업하기 위해, 작업테이블에 분말층을 쌓아가는 과정에서, 블레이드가 좌, 우로 움직인다. 이 때, 좌, 우로 이동 시 오는 진동을 흡수하여, 작업 테이블에 쌓이는 분말층이 흔들리는 것을 방지할 수 있는 삼차원 프린터를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and in order to work a molded product, a blade moves left and right in a process of stacking a powder layer on a work table. In this case, it is an object of the present invention to provide a three-dimensional printer capable of absorbing vibrations when moving left and right, and preventing a powder layer accumulated on a work table from shaking.

상기와 같은 목적을 달성하기 위하여, 본 발명은 내부공간이 마련된 챔버; 상기 챔버 내부에 설치되어, 분말이 다수의 분말층으로 순차적으로 적층되는 작업테이블; 상기 작업테이블로 분말을 공급하는 분말 공급부; 상기 분말 공급부의 분말을 흡입하여, 작업테이블 상부에 분말을 토출시키는 블레이드; 및 상기 블레이드에 일측에 설치되어, 블레이드의 이동에 따른 진동을 역방향 회전을 이용하여 불필요한 진동을 흡수하는 진동흡수부를 포함한다.According to an aspect of the present invention, there is provided a plasma display apparatus comprising: a chamber having an internal space; A work table installed inside the chamber, the work table having a plurality of powder layers sequentially stacked; A powder supply unit for supplying powder to the work table; A blade for sucking the powder of the powder supply unit and discharging the powder onto the work table; And a vibration absorber installed at one side of the blade for absorbing unnecessary vibrations using reverse rotation of the vibration caused by the movement of the blades.

상기 진동흡수부는, 상기 블레이드 일측에 설치되어, “A”방향과 정반대인 “B”방향으로 회전하는 롤러부를 포함할 수 있고, 상기 롤러부는, 상기 블레이드 이동방향의 역방향으로 회전하여 진동을 흡수할 수 있다.The vibration absorbing portion may include a roller portion provided on one side of the blade and rotating in a direction " B " opposite to the direction " A ", and the roller portion rotates in a direction opposite to the blade moving direction to absorb vibration .

상기 진동흡수부는, 상기 롤러부가 블레이드에 결합되도록, 블레이드의 면적과 대응되게 위치하는 결합부를 포함할 수 있다.The vibration absorbing portion may include a coupling portion corresponding to an area of the blade so that the roller portion is coupled to the blade.

본 발명에 따른 삼차원 프린터는 성형물을 작업하기 위해, 작업테이블에 분말층을 쌓아가는 과정에서, 블레이드가 좌, 우로 움직인다. The three-dimensional printer according to the present invention moves the blade to the left and right in the process of stacking the powder layer on the work table to work the molded article.

이 때, 좌, 우로 이동 시 오는 진동을 흡수하여, 작업 테이블에 쌓이거나, 쌓인 분말층이 흔들리지 않도록 방지할 수 있는 효과를 갖는다.At this time, the vibration absorbing vibration when moving left and right is absorbed, so that it is possible to prevent the powder layer accumulated on the work table or the accumulated powder layer from being shaken.

이로 인해, 성형되는 제품이 원하는 형태로 제작됨으로써, 성형 정밀도를 향상시킬 수 있는 효과를 갖는다.Thus, the molded product is manufactured in a desired shape, thereby improving the molding accuracy.

도 1은 본 발명의 실시 예에 따른 삼차원 프린터를 나타낸 도면,
도 2는 도 1에 도시된 삼차원 프린터의 블레이드를 나타낸 도면,
도 3은 도2에 도시된 블레이드에 결합된 진동흡수부를 나타낸 도면이다.1 illustrates a three-dimensional printer according to an embodiment of the present invention,
FIG. 2 is a view showing a blade of the three-dimensional printer shown in FIG. 1,
3 is a view of a vibration absorber coupled to the blade shown in FIG.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 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.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

도 1은 본 발명의 실시 예에 따른 삼차원 프린터를 나타낸 도면이고, 도 2는 도 1에 도시된 삼차원 프린터의 블레이드를 나타낸 도면이며, 도 3은 도2에 도시된 블레이드에 결합된 진동흡수부를 나타낸 도면이다.Fig. 1 shows a three-dimensional printer according to an embodiment of the present invention, Fig. 2 shows a blade of the three-dimensional printer shown in Fig. 1, and Fig. 3 shows a vibration absorption part coupled to the blade shown in Fig. FIG.

도 1 내지 3을 참조하면, 본 발명의 실시 예에 따른 삼차원 프린터는 챔버(100)와, 작업테이블(200)과, 분말 공급부(300)와, 블레이드(400) 및 진동흡수부(500)를 포함한다.1 to 3, a three-dimensional printer according to an embodiment of the present invention includes a chamber 100, a work table 200, a powder supply unit 300, a blade 400, and a vibration absorbing unit 500 .

챔버(100)는, 내부 공간이 형성된다. In the chamber 100, an inner space is formed.

작업테이블(200)은, 챔버(100) 내부에 설치되어, 분말이 다수의 분말층으로 순차적으로 적층된다. 또한 작업테이블(200)은 베드(210)를 포함할 수 있다. 여기서 베드(210)는 상부에 분말이 적층될 수 있다. 즉 베드(210)에는 분말층이 순착적으로 적층되면서 제조하고자 하는 제품으로 용착될 수 있다. 또한 베드(210)는 하방에 피스톤(212)이 설치된다. 피스톤(212)은 z축 방향으로 수직 이동할 수 있다. 또한 베드(210)는 상면에 놓여진 분말소재가, 챔버(100) 내부에 위치하고, 베드(210) 상부에 설치되는 레이저에 의해 소결되면, 피스톤(212)에 의해 아래로 수직 하강하여 소결된 분말소재 위에 새로운 분말소재가 일정두께로 적층될 수 있도록 한다. The work table 200 is installed inside the chamber 100, and the powders are sequentially stacked with a plurality of powder layers. The work table 200 may also include a bed 210. Here, the bed 210 may have powder deposited thereon. That is, the powder layer may be sequentially deposited on the bed 210 and may be deposited as a product to be manufactured. In addition, a piston 212 is installed below the bed 210. The piston 212 can move vertically in the z-axis direction. When the powder material placed on the upper surface of the bed 210 is sintered by the laser installed on the upper portion of the bed 210 and is vertically lowered by the piston 212 to be sintered, So that the new powder material can be laminated to a certain thickness.

분말 공급부(300)는, 챔버(100) 내부 공간에 위치한다. 분말 공급부(300)는 베드(210)에 인접하게 위치한다. 그리고 분말 공급부(300)는 베드(210)의 상부에 분말층을 형성하고 남은 분말을 저장하는 분말 저장부(310)를 더 포함할 수 있다.The powder supply part 300 is located in the interior space of the chamber 100. The powder feeder 300 is positioned adjacent to the bed 210. The powder supply unit 300 may further include a powder storage unit 310 that forms a powder layer on the top of the bed 210 and stores the remaining powder.

분말 공급부(300)는 분말 저장부(310)와 더불어 베드(210)와 일렬로 배치되는 것이 바람직하다. 또한 분말 공급부(300) 및 분말 저장부(310)는 별도의 승하강기구(320)와 연결되어 승하강기구(320)의 동작에 의해 챔버(100)의 내부에서 상하로 슬라이딩 이동하면서 승강 및 하강하게 된다. 승하강기구(320)는 제어부(미도시)에 의해 제어되므로 베드(210)의 승하강은 제어부(미도시)에 의해 제어된다.The powder supply part 300 is preferably arranged in line with the bed 210 together with the powder storage part 310. The powder supply unit 300 and the powder storage unit 310 are connected to a separate lifting mechanism 320 to move up and down in the chamber 100 by the operation of the lifting mechanism 320, . Since the lifting mechanism 320 is controlled by a controller (not shown), the lifting and lowering of the bed 210 is controlled by a controller (not shown).

블레이드(400)는, 내부에 설치되어, 베드(210)에 분말을 쌓고, 쌓인 분말을 평탄하게 하는 코터기(미도시) 구비할 수 있다. 코터기(미도시)는 분말 공급부(300)에서 베드(210)로 이동하면서 베드(210)의 상부에 분말층을 평탄하게 형성하게 하고, 코터기가 베드(210)에서 분말 공급부(300)로 이동하면서 베드(210)에 분말층을 형성하고 남은 분말이 분말 저장부(310)로 이동되면서 저장되게 된다.The blade 400 may include a cotter (not shown) installed inside the bed 210 to stack the powder on the bed 210 and flatten the accumulated powder. The coater moves from the powder supply part 300 to the bed 210 and flattenes the powder layer on the upper part of the bed 210 so that the coater moves from the bed 210 to the powder supply part 300 A powder layer is formed on the bed 210, and the remaining powder is stored while being transferred to the powder storage part 310.

코터기(미도시)는 별도의 이동부재(미도시) 및 진공부재(미도시)를 포함하는 것이 바람직하다. 이동부재(미도시)는 코터기를 베드(210)의 상부에서 좌우로 이동시키는 역할을 하고, 진공부재(미도시)는 코터기가 분말 공급부(300)에 저장된 분말을 흡입 후 베드(210)의 상부로 배출하는 역할을 한다.The cotter machine (not shown) preferably includes a separate moving member (not shown) and a vacuum member (not shown). The vacuum member (not shown) serves to move the cotter unit from the upper part of the bed 210 to the upper part of the bed 210 after the powder stored in the powder supplying part 300 is sucked by the moving member (not shown) .

진동흡수부(500)는, 도시된 도 2와 같이 블레이드(400) 일측 또는 양측에 설치된다. 이러한 진동흡수부(500)는 블레이드(400)의 이동에 따른 진동을 역방향 회전을 이용하여 불필요한 진동을 흡수한다. 이를 위해, 진동흡수부(500)는 롤러부(510)를 포함할 수 있다. 여기서 롤러부(510)는 블레이드(400) 일측에 설치되어, 도시된 도 2와 같이, “A”방향과 정반대인 “B”방향으로 회전할 수 있다. 즉, 블레이드(400)는 “A”방향으로 이동되면서 진동을 일으키고, 이러한 롤러부(510)는 “A”방향의 진동부를 흡수하기 위해 “B”방향인 역방향을 이용하여 진동부에 의해 롤러부(510)가 회전하여, 진동을 흡수하는 역할을 할 수 있다. 만약 블레이드(400)와 같은 방향으로 롤러부(510)가 회전되도록 설치된다면, 롤러부(510)에 의해 더 큰 진동을 일으키지만, 역방향을 이용한다면 오히려 진동을 흡수할 수 있는 효과를 갖을 수 있다. 또한 진동부는 내측에 회전이 용이하도록 모터가 삽입될 수 있다. 다만 이는 예시일 뿐, 진동에 의해 자동적으로 회전이 가능하여, 모터가 생략될 수도 있다.The vibration absorbing portion 500 is installed on one side or both sides of the blade 400 as shown in Fig. The vibration absorbing part 500 absorbs unnecessary vibration by using the reverse rotation of the vibration due to the movement of the blade 400. For this purpose, the vibration absorbing portion 500 may include a roller portion 510. Here, the roller portion 510 is provided at one side of the blade 400, and can rotate in the direction " B " which is the opposite of the direction " A " That is, the blade 400 is moved in the direction of " A " to cause vibration, and this roller portion 510 is rotated in the reverse direction by the vibrating portion in the " The vibration plate 510 rotates to absorb the vibration. If the roller unit 510 is installed so as to rotate in the same direction as the blade 400, the roller unit 510 generates a larger vibration. However, if the roller unit 510 is used in the opposite direction, . Further, the vibration part can be inserted into the motor so as to be easily rotated inside. However, this is only an example, and it is possible to automatically rotate by vibration, so that the motor may be omitted.

또한 진동흡수부(500)는 롤러부(510)가 블레이드(400)에 결합되도록 블레이드(400)의 면적과 대응되게 위치하는 결합부(520)를 더 포함할 수 있다. 결합부(520)와 블레이드(400)는 나사로 결합될 수 있다. 다만 이는 예시일 뿐, 블레이드(400)와 결합될 수 있는 결합구조이면 그 결합구조로 대체 가능하다.The vibration absorbing part 500 may further include a coupling part 520 positioned so as to correspond to the area of the blade 400 so that the roller part 510 is coupled to the blade 400. The coupling portion 520 and the blade 400 may be screwed together. However, this is merely an example, and if the coupling structure can be combined with the blade 400, it can be replaced with the coupling structure.

이와 같이, 본 발명의 삼차원 프린터에 의하면, 작업테이블(200)에 분말층을 쌓아가는 과정에서, 블레이드(400)가 좌, 우로 움직인다. As described above, according to the three-dimensional printer of the present invention, in the process of stacking the powder layer on the work table 200, the blade 400 moves left and right.

이 때, 좌, 우로 이동 시 오는 진동을 흡수하여, 작업 테이블에 쌓이거나, 쌓인 분말층이 흔들리지 않도록 방지할 수 있는 효과를 갖는다.At this time, the vibration absorbing vibration when moving left and right is absorbed, so that it is possible to prevent the powder layer accumulated on the work table or the accumulated powder layer from being shaken.

이로 인해, 성형되는 제품이 원하는 형태로 제작됨으로써, 성형 정밀도를 향상시킬 수 있는 효과를 갖는다.Thus, the molded product is manufactured in a desired shape, thereby improving the molding accuracy.

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.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 : 챔버
200 : 작업테이블
210 : 베드
212 : 피스톤
300 : 분말 공급부
310 : 분말 저장부
320 : 승하강기구
400 : 블레이드
500 : 진동흡수부
510 : 롤러부
520 : 결합부100: chamber
200: Work table
210: Bed
212: piston
300: Powder supply part
310: Powder storage part
320: lifting mechanism
400: blade
500: vibration absorption portion
510: roller portion
520:

Claims (3)

내부공간이 마련된 챔버;
상기 챔버 내부에 설치되어, 분말이 다수의 분말층으로 순차적으로 적층되는 작업테이블;
상기 작업테이블로 분말을 공급하는 분말 공급부;
상기 분말 공급부의 분말을 흡입하여, 작업테이블 상부에 분말을 토출시키는 블레이드; 및
상기 블레이드에 일측에 설치되어, 블레이드의 이동에 따른 진동을 역방향 회전을 이용하여 불필요한 진동을 흡수하는 진동흡수부를 포함하는 삼차원 프린터.
A chamber provided with an internal space;
A work table installed inside the chamber, the work table having a plurality of powder layers sequentially stacked;
A powder supply unit for supplying powder to the work table;
A blade for sucking the powder of the powder supply unit and discharging the powder onto the work table; And
And a vibration absorber installed at one side of the blade for absorbing unnecessary vibration using reverse rotation of the vibration caused by the movement of the blade.
청구항 1에 있어서,
상기 진동흡수부는,
상기 블레이드 일측에 설치되어, “A”방향과 정반대인 “B”방향으로 회전하는 롤러부를 포함하고,
상기 롤러부는,
상기 블레이드 이동방향의 역방향으로 회전하여 진동을 흡수하는 삼차원 프린터.
The method according to claim 1,
The vibration-
And a roller portion provided at one side of the blade and rotating in a direction " B " which is opposite to the direction " A "
The roller unit
Wherein the vibration is absorbed by rotating in a direction opposite to the blade moving direction.
청구항 2에 있어서,
상기 진동흡수부는,
상기 롤러부가 블레이드에 결합되도록, 블레이드의 면적과 대응되게 위치하는 결합부를 포함하는 삼차원 프린터.
The method of claim 2,
The vibration-
And a coupling portion located corresponding to an area of the blade so that the roller portion is coupled to the blade.
KR1020170104647A 2017-08-18 2017-08-18 Three-dimensional object KR20190019545A (en)

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