KR19990012616A - Optical molding device using optical fiber - Google Patents
Optical molding device using optical fiber Download PDFInfo
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- KR19990012616A KR19990012616A KR1019970036075A KR19970036075A KR19990012616A KR 19990012616 A KR19990012616 A KR 19990012616A KR 1019970036075 A KR1019970036075 A KR 1019970036075A KR 19970036075 A KR19970036075 A KR 19970036075A KR 19990012616 A KR19990012616 A KR 19990012616A
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- optical fiber
- photocurable resin
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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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- 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
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- 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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
Abstract
본 발명은 광섬유어레이를 이용하여 광경화성수지에 자외선빔을 조사함으로서 광조형물을 형성하도록 한 광섬유를 이용한 광조형 장치에 관한 것으로, 자외선 빔을 발생하는 광원(10)과, 액상의 광경화성수지(90)가 수용된 용기(80)와, 상기 광원(10)에서 발생된 자외선 빔을 상기 용기(80)내에 수용된 광경화성 수지(90)의 표면(93)으로 안내하는 광섬유어레이(20)와, 상기 광섬유어레이(20)의 각 광섬유의 자외선 빔의 통과 여부를 제어하는 광셧터(30)와, 상기 광셧터(30)의 작동을 제어하는 이미지프로세서(40)를 구비하고 있다.The present invention relates to an optical molding apparatus using an optical fiber to form an optical object by irradiating an ultraviolet beam to the photocurable resin using an optical fiber array, comprising a light source 10 for generating an ultraviolet beam and a liquid photocurable resin ( A container 80 containing 90, an optical fiber array 20 for guiding the ultraviolet beam generated by the light source 10 to the surface 93 of the photocurable resin 90 contained in the container 80, and An optical shutter 30 for controlling whether an ultraviolet beam of each optical fiber of the optical fiber array 20 passes, and an image processor 40 for controlling the operation of the optical shutter 30 are provided.
Description
본 발명은 광조형 장치에 관한 것으로, 특히, 광섬유어레이를 이용하여 광경화성수지에 자외선빔을 조사함으로서 광조형물을 형성하도록 한 광섬유를 이용한 광조형 장치에 관한 것이다.BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to an optical shaping device, and more particularly, to an optical shaping device using an optical fiber to form an optical sculpture by irradiating an ultraviolet beam to a photocurable resin using an optical fiber array.
광조형장치는 액상의 광경화성수지에 자외선빔을 주사하여 광경화성수지를 경화시키어 입체조형물을 조형하기 위한 것으로, 도 1 에 도시된 바와 같이, 레이저를 발생하는 광원(1)과, 상기 광원(1)에서 발생된 자외선빔(C)를 반사하여 용기(7)에 수용된 광경화성수지(8)의 액면(d)에 촛점을 형성하도록 Y축방향으로 회전가능한 스캐닝미러(6)를 구비한다. 한편, 용기(7)는 베이스(12)에 지지되어 있고, 상기 용기(7)내의 광경화성수지(8)가 경화되어 형성되는 조형물(9)은 Z방향으로 상하이동할 수 있는 엘리베이터(10)상에 지지되어 있다. 그리고, 도 1에서, (3)은 CAD데이타(2)을 받아 출력신호를 발생하는 제어계(4)에 의해 제어되어 상기 빔의 통과 여부를 결정하는 광셔터, (5)은 광집속렌즈, (11)은 용기를 Z축방향을 이동하기 위한 Z축 엑츄에이터, (13)은 용기를 Y축방향을 이동하기 위한 Y축 엑츄에이터, (14)은 용기를 X축방향을 이동하기 위한 X축 엑츄에이터를 나타낸다.The optical molding apparatus is for molding a three-dimensional object by scanning an ultraviolet beam to a liquid photocurable resin to cure the photocurable resin, and as shown in FIG. 1, a light source 1 for generating a laser and the light source ( A scanning mirror 6 rotatable in the Y-axis direction is provided to reflect the ultraviolet beam C generated in 1) and to focus on the liquid surface d of the photocurable resin 8 contained in the container 7. On the other hand, the container 7 is supported on the base 12, and the molded object 9 formed by curing the photocurable resin 8 in the container 7 is on the elevator 10 which can move in the Z direction. Is supported. In Fig. 1, reference numeral 3 denotes an optical shutter controlled by a control system 4 that receives CAD data 2 and generates an output signal, and 5 denotes a light focusing lens, 11) Z-axis actuator for moving the container in the Z-axis direction, (13) Y-axis actuator for moving the container in the Y-axis direction, (14) X-axis actuator for moving the container in the X-axis direction Indicates.
이러한 종래의 광조형 장치의 작동을 설명한다.The operation of such a conventional optical shaping device will be described.
광원(1)에서 발생된 자외선빔(c)는 제어계(4)에 의해 제어되는 광셔터(3), 광집속렌즈(5)을 통과하여 Y축방향으로 회전운동하는 스캐닝미러(2)에 의해 반사되 이 용기(7)에 수용된 광경화성수지(8)의 액면(d)에 촛점을 형성하여 한 층에 대한 광경화 공정이 이루어진다.The ultraviolet beam c generated by the light source 1 is passed through the optical shutter 3 and the light focusing lens 5 controlled by the control system 4 by the scanning mirror 2 rotating in the Y-axis direction. The photocuring process for one layer is performed by focusing on the liquid surface d of the photocurable resin 8 which is reflected and accommodated in the container 7.
그 후, 빔에 의해 경화된 광경화성수지층이 지지된 엘리베이터(10)은 Z축 엑츄에이터(11)에 의해 다음 한 층만큼 하강되고, 그 위에 또 다른 광경화성수지층이 형성되는 과정이 수행되어 소정의 형상의 입체조형물이 형성된다.Thereafter, the elevator 10 supported by the photocurable resin layer cured by the beam is lowered by the Z-axis actuator 11 by one next layer, and another photocurable resin layer is formed thereon. Three-dimensional figures of a predetermined shape are formed.
그런데, 종래의 광조형 장치에서는, 3차원 형상의 조형물을 조형하기 위해서는 X, Y, Z축 드라이브 및 스캐닝미러, 그에 따른 제어계가 필요하게 되어, 장치가 복잡해져 값이 비싸고, 조형하는데는 단면을 일일이 주사해야 하므로 조형시간이 길어지는 문제점이 있었다.By the way, in the conventional optical molding apparatus, X, Y, Z-axis drive and a scanning mirror and a control system according to it are required to mold a three-dimensional shaped object, and the apparatus becomes complicated and expensive, and the cross section is used for molding. Because of the injection, there was a problem that the molding time is long.
본 발명은 이러한 종래기술의 문제점을 해결하기 위한 것으로, 광섬유를 이용하여 광경화성수지에 자외선빔을 조사함으로서, 장치의 구조를 단순화하여 장치의 값을 저가로 실현하고, 광경화성수지에 원하는 형상의 빔을 일괄조사하여 광조형시간을 단축할 수 있는 광섬유를 이용한 광조형 장치의 제공을 목적으로 한다.The present invention is to solve the problems of the prior art, by irradiating an ultraviolet beam to the photocurable resin using an optical fiber, to simplify the structure of the device to realize the value of the device at a low cost, the desired shape of the photocurable resin An object of the present invention is to provide an optical molding apparatus using an optical fiber that can shorten the optical molding time by irradiating the beam collectively.
상기 목적을 달성하기 위하여, 본 발명의 광섬유를 이용한 광조형 장치는, 광원에서 발생된 자외선 빔을 용기내에 수용된 광경화성수지에 조형물을 형성시키는 광조형 장치에 있어서, 상기 광원에서 발생된 자외선빔을 상기 용기내에 수용된 광경화성 수지의 표면으로 안내하는 광섬유어레이와, 상기 광섬유어레이의 각 광섬유의 자외선 빔의 통과 여부를 제어하는 광셧터와, 3차원의 조형물데이타를 받아 상기 광셧터의 작동을 제어하는 이미지프로세서를 구비한 것을 특징으로 한다.In order to achieve the above object, the optical shaping device using the optical fiber of the present invention, in the optical shaping device for forming a molded object in the photocurable resin housed in the container, the ultraviolet light beam generated from the light source, An optical fiber array for guiding the surface of the photocurable resin contained in the container, an optical shutter for controlling the passage of the ultraviolet beam of each optical fiber of the optical fiber array, and receiving a three-dimensional sculpture data to control the operation of the optical shutter And an image processor.
도 1 은 종래의 광조형 장치의 구성도.1 is a block diagram of a conventional optical shaping device.
도 2 는 본 발명에 따른 광섬유를 이용한 광조형 장치의 구성도.2 is a block diagram of an optical molding apparatus using an optical fiber according to the present invention.
도 3 은 본 발명의 광조형 장치의 모식도.3 is a schematic view of a light shaping device of the present invention.
도 4 는 본 발명의 광조형 장치의 광섬유의 사시도.4 is a perspective view of an optical fiber of the optical shaping device of the present invention.
도 5 는 본 발명의 광조형 장치의 광섬유 어레이의 사시도.5 is a perspective view of an optical fiber array of the optical shaping device of the present invention.
도 6 은 본 발명의 광조형 장치의 광셔터의 구조도.6 is a structural diagram of an optical shutter of the optical shaping device of the present invention.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 광원20 : 광섬유어레이10: light source 20: optical fiber array
22 : 광섬유23 : 피막22: optical fiber 23: film
24 : 코어30 : 광셧터24: core 30: optical shutter
31 : 액정제어구동부32 : 액정셀31 liquid crystal control driver 32 liquid crystal cell
40 : 이미지프로세서70 : Z축드라이브40: image processor 70: Z-axis drive
71 : 엘리베이터80 : 용기71: elevator 80: container
90 : 광경화성수지91 : 광조형물90: photo-curable resin 91: optical sculpture
92 : 주 경화부93 : 수지표면92: hardening part 93: resin surface
94 : 산란 경화영역94: scattering hardening area
이하, 첨부 도면에 의거하여 본 발명의 광섬유를 이용한 광조형 장치를 상세히 설명하면 다음과 같다.Hereinafter, an optical molding apparatus using an optical fiber of the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 광섬유를 이용한 광조형 장치는, 도 2 및 도 3에 도시된 바와 같이, 자외선 빔을 발생하는 광원(10)과, 액상의 광경화성수지(90)가 수용된 용기(80)와, 상기 광원(10)에서 발생된 자외선 빔을 상기 용기(80)내에 수용된 광경화성 수지(90)의 표면(93)으로 안내하는 복수의 광섬유(22)로 구성된 광섬유어레이(20)와, 상기 광섬유어레이(20)의 각 광섬유의 자외선 빔의 통과 여부를 제어하는 광셧터(30)와, 상기 광셧터(30)의 작동을 제어하는 이미지프로세서(40)를 구비하고 있다.As shown in Figs. 2 and 3, the optical shaping device using the optical fiber of the present invention, a light source 10 for generating an ultraviolet beam, a container 80 in which a liquid photocurable resin 90 is accommodated, An optical fiber array 20 composed of a plurality of optical fibers 22 for guiding the ultraviolet light beam generated by the light source 10 to the surface 93 of the photocurable resin 90 contained in the container 80, and the optical fiber array ( 20 is provided with an optical shutter 30 for controlling the passage of the ultraviolet beam of each optical fiber of the optical fiber 20, and an image processor 40 for controlling the operation of the optical shutter 30.
상기 광섬유어레이(20)는 각 광섬유(22)는, 도 4 에 도시된 바와 같이, 자외선 빔이 통과하는 석영 또는 아크릴재질의 코어(24)와 상기 코어(24)를 둘러싸고 있는 피막(23)으로 구성된다.The optical fiber array 20 is each of the optical fibers 22, as shown in Figure 4, the core 24 of the quartz or acrylic material through which the ultraviolet beam passes and the film 23 surrounding the core 24 It is composed.
상기 광셔터(30)는, 도 6에 도시된 바와 같이, 복수의 액정셀(32)이 상기 광섬유어레이(20)의 각 광섬유(22)에 대응하여 광섬유에서 오는 빔을 제어하도록 조합 구성되고, 상기 액정셀(32)를 빛의 투과가 가능한 오프상태 및 빛의 투과가 불가능한 상태로 구동제어하는 액정셀구동제어부(31)를 구비하고 있다. 예를들면, 도 6에 도시된 바와 같이, 오프상태의 액정셀(C21-C33)은 광섬유(22)를 통한 빔의 투과가 가능한 상태가 되고, 온상태의 액정셀(C11-C13)은 광섬유(22)를 통한 빔의 투과가 불가능한 상태가 된다.The optical shutter 30, as shown in Figure 6, a plurality of liquid crystal cells 32 are configured in combination so as to control the beam coming from the optical fiber corresponding to each optical fiber 22 of the optical fiber array 20, A liquid crystal cell drive control unit 31 is provided to drive the liquid crystal cell 32 in an off state in which light can be transmitted and in a state in which light cannot be transmitted. For example, as shown in FIG. 6, the liquid crystal cells C21-C33 in the off state are allowed to transmit beams through the optical fiber 22, and the liquid crystal cells C11-C13 in the on state are optical fibers. Transmission of the beam through 22 becomes impossible.
상기 이미지프로세서(40)는, 3차원 형상의 CAD데이타를 1 또는 0으로 양자화 작업(1은 형상있음, 0은 형상없음, 또는 그 반대)하여 상기 액정셀구동제어부(31)에 온/오프 이미지프로세싱 신호를 출력한다.The image processor 40 quantizes the CAD data of the three-dimensional shape to 1 or 0 (1 is in shape, 0 is not in shape, or vice versa) to turn on / off the image on the liquid crystal cell drive control unit 31. Output the processing signal.
상기 용기(80)내의 광경화성수지(90)가 경화되어 형성되는 조형물(91)은 Z축 드라이브(70)에 의해 Z방향으로 상하이동할 수 있는 엘리베이터(71)상에 지지되어 있다.The sculpture 91 formed by curing the photocurable resin 90 in the container 80 is supported on an elevator 71 capable of moving in the Z direction by the Z-axis drive 70.
그리고, 도 2 및 도 3에서, (50)은 CAD데이타(60)을 받아 이미지프로세서(40)의 제어신호 및 Z축 드라이브(70)의 제어신호를 발생하는 제어계, (21)은 광섬유어레이(20)의 각 광섬유의 헤드, (41)은 이미지프로세서(40)를 신호를 광셔터(30)로 전송하기 위한 케이블을 나타낸다.2 and 3, reference numeral 50 denotes a control system that receives CAD data 60 and generates a control signal of the image processor 40 and a control signal of the Z-axis drive 70, and 21 denotes an optical fiber array ( The head 41 of each optical fiber 20 denotes a cable for transmitting an image processor 40 to the optical shutter 30.
이하, 본 발명의 광조형 장치의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the optical shaping device of the present invention will be described.
도 2 내지 도 5에 도시된 바와 같이, 광원(10)에서 발생된 자외선 빔은, 광섬유어레이(20)의 각 광섬유(22)의 코어(24)를 통해 용기(80)내에 수용된 광경화성수지(90)의 표면(93)에 조사되어, 자외선 빔이 닿은 부분은 바로 경화되어 주 경화부(92)를 형성시킨다. 한편, 광경화성수지의 표면에 조사된 빔은 수지내에서 산란을 일으켜 상기 주경화부(92)보다 큰 범위에서 경화가 이루어져서 산란경화영역(94)를 형성하고, 이러한 산란 경화영역이 인접한 광섬유(22)끼리 서로 겹치도록 하면 완벽한 경화층을 얻을 수 있다. 이와 같이하여 한 층에 대한 광경화 공정이 이루어진다.As shown in FIGS. 2 to 5, the ultraviolet beam generated by the light source 10 is a photocurable resin contained in the container 80 through the core 24 of each optical fiber 22 of the optical fiber array 20. Irradiated onto the surface 93 of 90, the portion hit by the ultraviolet beam is immediately cured to form the main curing portion 92. On the other hand, the beam irradiated on the surface of the photo-curable resin causes scattering in the resin to cure in a larger range than the main curing unit 92 to form a scattering hardening region 94, the optical fiber 22 adjacent to the scattering curing region ) If they overlap each other, a perfect hardened layer can be obtained. In this way, a photocuring process for one layer is achieved.
그 후, 경화된 광경화수지층이 쌓이는 엘리베이터(71)은 Z축 드라이브(70)에 의해 다음 한 층만큼 하강되고, 또 다른 광경화성수지층이 형성되는 과정이 수행되어 소정의 형상의 입체조형물이 형성된다.Thereafter, the elevator 71 in which the cured photocurable resin layer is stacked is lowered by the next Z-layer drive 70 by one layer, and a process of forming another photocurable resin layer is performed to produce a three-dimensional object having a predetermined shape. Is formed.
이때, 단면데이타(61)를, 제어계(50)로 작동되는 이미지프로세서(40)에 의해 온/오프 이미지 프로세싱 신호가 출력되어, 상기 신호에 따라 광셧터(30)의 액정셀 구동제어부(31)가 각 액정셀(32)를 빛의 투과가 가능한 오프상태 또는 빛의 투과가 불가능한 온상태로 작동되어 광섬유어레이(20)의 각 광섬유(22)가닥마다의 자외선 빔의 통과여부가 제어되어 광경화성수지의 표면에 CAD단면데이타(61)에 대응하도록 빔이 일괄조사되어 수지의 한층의 일괄적인 광경화가 이루어진다.At this time, the on-off image processing signal is output by the image processor 40 operated by the control system 50, and the liquid crystal cell driving control unit 31 of the optical shutter 30 is outputted according to the signal. Each liquid crystal cell 32 is operated in an off state in which light can be transmitted or in an on state in which light cannot be transmitted, thereby controlling the passage of an ultraviolet beam for each strand of the optical fiber 22 of the optical fiber array 20. The beam is irradiated collectively on the surface of the resin so as to correspond to the CAD cross-sectional data 61, whereby one layer of photocuring of the resin is performed.
이상, 설명한 바와 같이, 본 발명에 따르면, 광섬유를 이용하여 광경화성수지에 자외선빔을 조사함으로서, X, Y 제어계 및 드라이브 및 스캐닝미러가 불필요하게 되어 장치의 가격을 저렴하게 할 수 있고, 또한 구조를 단순화할 수 있고, 광경화성수지에 원하는 형상의 빔을 일괄조사하여 조형함으로서 광조형시간을 단축할 수 있다.As described above, according to the present invention, by irradiating an ultraviolet beam to the photocurable resin using an optical fiber, the X, Y control system, the drive and the scanning mirror are unnecessary, which makes the cost of the device low and the structure Can be simplified, and the optical molding time can be shortened by collectively irradiating and molding a beam having a desired shape on the photocurable resin.
Claims (5)
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| KR1019970036075A KR100243886B1 (en) | 1997-07-30 | 1997-07-30 | Light luminating apparatus using optical fibre |
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| KR100243886B1 KR100243886B1 (en) | 2000-02-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100771305B1 (en) * | 2006-07-20 | 2007-10-29 | 삼성전기주식회사 | Photo curable device for camera lens |
| KR102289343B1 (en) * | 2021-01-19 | 2021-08-13 | 주식회사 큐브세븐틴 | 3D over-printing device and method |
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| KR102524245B1 (en) * | 2021-09-15 | 2023-04-21 | 한국전자기술연구원 | Light source module for additive manufacturing and apparatus for additive manufacturing comprising the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0692442B2 (en) * | 1986-09-02 | 1994-11-16 | 浜松ホトニクス株式会社 | Light source for light curing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100771305B1 (en) * | 2006-07-20 | 2007-10-29 | 삼성전기주식회사 | Photo curable device for camera lens |
| KR102289343B1 (en) * | 2021-01-19 | 2021-08-13 | 주식회사 큐브세븐틴 | 3D over-printing device and method |
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