KR20190050732A - Vat for 3D Printer Capable of Fast Curing - Google Patents

Vat for 3D Printer Capable of Fast Curing Download PDF

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KR20190050732A
KR20190050732A KR1020180134802A KR20180134802A KR20190050732A KR 20190050732 A KR20190050732 A KR 20190050732A KR 1020180134802 A KR1020180134802 A KR 1020180134802A KR 20180134802 A KR20180134802 A KR 20180134802A KR 20190050732 A KR20190050732 A KR 20190050732A
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resin
photo
temperature
printer
photocuring
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KR1020180134802A
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Korean (ko)
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KR102261911B1 (en
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권지성
주용호
김동혁
정다영
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주식회사 쓰리딜라이트
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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
    • 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
    • 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

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

Abstract

The present invention relates to a resin container which provides a photo-curing accelerator having specific gravity higher than that of a photo-curable resin to the bottom of the resin container so that a build stage and a cured cross-section do not adhere to a photo-curing plate. The resin container for a three-dimensional printer capable of promoting the photo-curing of the present invention comprises: a water tank in which a photo-curable resin is accommodated; an automatic photo-curing accelerator supplying device for supplying the photo-curing accelerator to the bottom of the water tank; and a photo-curing accelerator height measuring sensor for sensing the supply amount of the photo-curing accelerator.

Description

광경화를 촉진할 수 있는 3D 프린터용 레진 용기 및 이를 포함하는 3D 프린터{Vat for 3D Printer Capable of Fast Curing}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a resin container for a 3D printer capable of promoting light curing and a 3D printer including the same.

본 발명은 광경화 방식의 3D 프린터용 레진 용기 및 이를 포함하는 3D 프린터에 관한 것으로, 보다 구체적으로는 광경화를 촉진할 수 있는 3D 프린터용 레진 용기 및 이를 포함하는 3D 프린터에 관한 것이다.The present invention relates to a resin container for a photocuring type 3D printer and a 3D printer including the resin container. More particularly, the present invention relates to a resin container for a 3D printer and a 3D printer including the resin container.

종래 광경화 방식 3D 프린터의 수조(Vat) 바닥은 투명 실리콘(실가드)과 투명 테프론 필름으로 구성되며, 빌드 스테이지와 바닥을 구성하는 물질 사이에 광경화성 레진이 일정한 높이만큼 충전이 되고 원하는 형상의 UV가 조사가 되어 원하는 형상이 만들어지면, 빌드 스테이지가 위로 올라가면서, 투명 실리콘이나 투명 테프론 필름과 떨어지게 되고, 다시 빌드 스테이지가 일정한 높이로 내려오는 동일한 사이클을 반복하여, 원하는 형상의 제품을 만들게 된다.Conventional photocurable 3D printers have a Vat bottom which is made of transparent silicone (silk guards) and transparent Teflon film. The photocurable resin is filled between the build stage and the material composing the bottom, When the UV is irradiated and the desired shape is created, the build stage is raised, the transparent silicon or transparent Teflon film is separated from the film, and the same cycle in which the build stage is lowered to a constant height is repeated to produce a product having a desired shape .

그러나, 광경화 방식 3D 프린터의 경우 제품의 출력중 레진이 빌드 스테이지에 붙지 않고, 투명 실리콘이나 투명 테프론 필름에 붙어 출력 실패가 되는 경우가 많으며, 사용시간에 따라 투명 실리콘과 투명 테프론 필름을 교체해야 하는 문제가 발생한다는 문제가 있다.However, in the case of photocurable 3D printers, the resin does not adhere to the build stage during the output of the product, and is often attached to transparent silicon or transparent Teflon film, causing output failure. Transparent silicon and transparent Teflon film should be replaced There is a problem that a problem occurs.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로, 광경화 레진보다 높은 비중의 광경화촉진제를 수조의 바닥에 공급하여 빌드 스테이지 및 경화단면이 광경화 플레이트에 부착하지 않는 레진 용기를 제공하기 위한 것이다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a resin container in which a photocuring accelerator having a specific gravity higher than that of a photocurable resin is supplied to the bottom of a water tank, will be.

상기 과제를 해결하기 위한 본 발명의 광경화를 촉진할 수 있는 3D 프린터용 레진 용기는 광경화성 레진이 수용되는 수조, 광경화촉진제를 상기 수조의 바닥에 공급하는 광경화촉진제 자동 공급 장치 및 광경화촉진제의 공급량을 감지하기 위한 광경화촉진제 높이 측정 센서를 포함하여 구성된다. A resin container for a 3D printer capable of promoting photo-curing according to the present invention for solving the above-mentioned problems includes a water tank in which a photocurable resin is accommodated, an automatic curing accelerator supplying device for supplying a photocuring accelerator to the bottom of the water tank, And a photocuring accelerator height measuring sensor for sensing the amount of the accelerator to be supplied.

또한, 수조 내부로 광경화성 레진을 연속적으로 공급하기 위한 광경화 레진 공급 장치(400)를 더 포함하는 것을 특징으로 한다.It is further characterized in that it further comprises a photocurable resin supply device (400) for continuously supplying the photocurable resin into the water tank.

또한, 본 발명의 3D 프린터는 몸체에 형성된 가이드를 따라 상하로 이동가능하게 설치되며, 수조(100) 내부에 잠겨 레진의 온도를 높이거나 낮추는 온도제어부(500)를 포함한다.In addition, the 3D printer of the present invention includes a temperature controller 500 installed to move up and down along a guide formed on a body and immersed in the water tub 100 to raise or lower the temperature of the resin.

또한, 상기 온도제어부(500)는 수조(100)의 외면으로부터 일정 간격 이격된 위치에 형성되고, 끝단에는 레진의 온도를 높이거나 낮추기 위한 온도 조절 수단이 형성된 것을 특징으로 한다.The temperature control unit 500 is formed at a position spaced from the outer surface of the water tub 100 by a predetermined distance, and a temperature adjusting unit for increasing or decreasing the temperature of the resin is formed at an end of the temperature control unit 500.

또한, 상기 수조(100)의 내벽에는 복수의 온도 센서(600)가 높이 방향으로 배치되고, 상기 온도제어부(500)의 끝단은 광경화촉진제 투입시에 광경화촉진층으로 이동하여, 광경화촉진층의 온도를 제어하는 것을 특징으로 한다.A plurality of temperature sensors 600 are arranged in the height direction on the inner wall of the water tub 100. The end of the temperature control unit 500 moves to the photo-curing promoting layer when the photo- And the temperature of the layer is controlled.

이에 따라, 본 발명에 따른 광경화를 촉진할 수 있는 3D 프린터용 레진 용기는 빌드 스테이지 및 경화단면에만 레진이 경화되고, 광경화플레이트에는 경화되지 않아 연속 적층이 가능하며, 자동공급장치를 통해 지속적으로 광경화촉진제가 수조 내부로 공급되므로, 수조 내부에서 레진 플로우가 발생하므로 고속 적층에 유리한 와류를 형성할 수 있는 효과를 갖는다. Accordingly, the resin container for a 3D printer capable of promoting the photo-curing according to the present invention is characterized in that the resin is cured only in the build stage and in the cured section, the continuous lamination is possible without curing in the photo-curable plate, The photo-curing promoter is supplied to the inside of the water tank, so that a resin flow is generated inside the water tank, so that it is possible to form a vortex favorable to high-speed stacking.

도 1은 본 발명의 3D 프린터용 레진 용기의 단면도이다.
도 2는 본 발명의 3D 프린터용 레진 용기의 변형예에 대한 단면도이다.
도 3은 본 발명의 다른 실시예에 따른 3D 프린터의 정면도이다.
도 4는 본 발명의 다른 실시예에 따른 3D 프린터의 레진 용기부의 단면이다.1 is a sectional view of a resin container for a 3D printer of the present invention.
2 is a sectional view of a modified example of the resin container for a 3D printer of the present invention.
3 is a front view of a 3D printer according to another embodiment of the present invention.
4 is a cross-sectional view of a resin container portion of a 3D printer according to another embodiment of the present invention.

이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다.Hereinafter, the technical idea of the present invention will be described more specifically with reference to the accompanying drawings.

첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일예에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the technical concept of the present invention, are incorporated in and constitute a part of the specification, and are not intended to limit the scope of the present invention.

본 발명의 방향 표시에 있어서, 도면의 상측을 상측, 도면의 하측을 하측, 도면의 길이방향을 길이방향으로 정의하기로 한다.In the direction display of the present invention, the upper side of the figure is defined as the upper side, the lower side of the figure is defined as the lower side, and the longitudinal direction of the figure is defined as the longitudinal direction.

도 1은 본 발명에 따른 3D 프린터용 레진 용기의 단면도이다. 1 is a sectional view of a resin container for a 3D printer according to the present invention.

도 1에 도시된 바와 같이, 본 발명에 따른 광경화를 촉진할 수 있는 3D 프린터용 레진 용기(1000)는 광경화성 레진이 수용되는 수조(100), 광경화촉진제를 상기 수조(100)의 바닥에 공급하는 광경화촉진제 자동 공급 장치(200) 및 광경화촉진제의 공급량을 감지하기 위한 광경화촉진제 높이 측정 센서(300)를 포함하여 구성된다. 1, a resin container 1000 for a 3D printer capable of promoting photo-curing according to the present invention includes a water tank 100 in which a photo-curing resin is accommodated, a photocuring accelerator 100 in the bottom of the water tank 100, And a photocuring accelerator height measuring sensor 300 for detecting the supply amount of the photocuring accelerator.

한편, 도 2에 도시된 바와 같이 광경화 레진 공급 장치(400)를 부가하여 수조 내부로 광경화성 레진을 연속적으로 공급할 수도 있다. Meanwhile, as shown in FIG. 2, the photocurable resin supply device 400 may be added to continuously supply the photocurable resin into the water tank.

본 발명의 광경화를 촉진할 수 있는 3D 프린터용 레진 용기(1000)의 작동 원리에 대해 좀 더 자세히 설명하면, 수조의 일측에 설치되는 광경화촉진제 자동 공급 장치(200)를 통해 광경화 레진 보다 비중이 높은 광경화촉진제를 수조의 바닥에 공급하며, 광경화촉진제의 공급량은 광경화촉진제 높이 측정 센서(300)를 통해 일정 수준으로 항상 유지된다. 한편, 광경화성 레진은 별도의 광경화성 레진 공급 장치(400)를 통해 광경화촉진제의 상부로 공급될 수 있다. The operation principle of the resin container 1000 for a 3D printer capable of promoting the photocuring according to the present invention will be described in more detail with reference to FIG. A light curing accelerator with a high specific gravity is supplied to the bottom of the tank, and the supply amount of the photo curing accelerator is always maintained at a constant level through the photocuring accelerator height measurement sensor 300. On the other hand, the photocurable resin can be supplied to the top of the photocurable accelerator through a separate photocurable resin supply device 400.

광경화촉진제와 광경화성 레진이 맞닿는 부분이 경화되는 단층으로 빌드 스테이지가 일정한 높이로 지정되어 경화 부착면이 되며, 광경화촉진제와 광경화성 레진이 맞닿는 반응층에서는 광경화촉진제의 작용으로 신속한 경화가 가능하다. It is a single layer where the photocuring accelerator and the photocurable resin are cured. The build stage is set at a constant height to become a hardened surface. In the reaction layer where the photocuring accelerator and the photocurable resin are in contact with each other, rapid curing It is possible.

이를 통해, 본 발명의 광경화를 촉진할 수 있는 레진 용기가 적용되는 3D 프린터는 빌드 스테이지 및 경화단면에만 레진이 경화되고, 광경화플레이트에서는 레진이 경화되지 않아 연속 적층이 가능하다. 또한, 자동공급장치를 이용하여 수조 내에 일정 레진의 흐름이 발생하고, 이를 통해 고속 적층이 가능한 와류가 형성될 수 있다.Accordingly, in the 3D printer to which the resin container capable of promoting the photo-curing of the present invention is applied, the resin is cured only in the build stage and the cured section, and the resin is not cured in the photo-cured plate, so that the continuous lamination is possible. In addition, a flow of a certain resin is generated in the water tank by using the automatic feeding device, and a vortex capable of high-speed lamination can be formed through the flow.

도 3은 본 발명의 다른 실시예에 따른 3D 프린터의 정면도로서, 도 3을 참조하면 본 발명의 다른 실시예의 경우 몸체에 형성된 가이드를 따라 상하로 이동가능하게 설치되며, 수조(100) 내부에 잠겨 레진의 온도를 높이거나 낮추는 온도제어부(500)를 더 포함하여 구성된다. 온도제어부(500)는 수조(100)의 외면으로부터 일정 간격 이격된 위치에 형성되는 것이 바람직하다. 3 is a front view of a 3D printer according to another embodiment of the present invention. Referring to FIG. 3, in another embodiment of the present invention, the 3D printer is installed vertically movably along a guide formed on a body, And a temperature controller 500 for increasing or decreasing the temperature of the resin. The temperature control unit 500 is preferably formed at a position spaced apart from the outer surface of the water tub 100 by a predetermined distance.

도 4는 본 발명의 다른 실시예에 따른 3D 프린터의 레진 용기부의 단면을 나타낸 것으로, 도 4를 참조하면, 온도제어부(500)의 끝단에는 레진의 온도를 높이거나 낮추기 위한 온도 조절 수단이 형성되어 있으며, 온도제어부(500)를 상하로 이동하여 광경화를 촉진할 위치의 온도를 제어하게 된다. 수조(100)의 내벽에는 복수의 온도 센서(600)가 높이 방향으로 배치되어 높이에 따른 레진의 온도 구배를 측정하게 된다.FIG. 4 is a cross-sectional view of a resin container of a 3D printer according to another embodiment of the present invention. Referring to FIG. 4, a temperature controller for raising or lowering the temperature of the resin is formed at an end of the temperature controller 500 And moves the temperature control unit 500 up and down to control the temperature at the position where the photocuring is to be promoted. A plurality of temperature sensors 600 are arranged in the height direction on the inner wall of the water tub 100 to measure the temperature gradient of the resin according to the height.

예를 들어, 광경화촉진제 투입과 함께 온도제어부(500)의 끝단을 광경화촉진층으로 이동시키고, 해당 광경화촉진층의 온도를 제어함으로써, 보다 빠르게 광경화를 촉진할 수 있으며, 광경화 레진의 공급과 광경화 레진의 유동이 필요한 경우에는 전체 레진의 온도를 높여줌으로써 레진의 유동성을 향상시키게 되는 것이다. For example, by moving the end of the temperature control unit 500 to the photo-curing promoting layer together with the introduction of the photo-curing accelerator, the photo-curing can be promoted more quickly by controlling the temperature of the photo-curing promoting layer, And the flow of the photocurable resin is required, the fluidity of the resin is improved by increasing the temperature of the entire resin.

본 발명은 상기한 실시예에 한정되지 아니하며, 적용범위가 다양함은 물론이고, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 다양한 변형 실시가 가능한 것은 물론이다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1000 : 본 발명에 따른 3D 프린터용 레진 용기
100 : 수조
200 : 광경화촉진제 자동 공급 장치
300 : 광경화촉진제 높이 측정 센서
400 : 광경화성 레진 공급 장치
500 : 이동 히팅부
600 : 온도 센서1000: resin container for 3D printer according to the present invention
100: water tank
200: Automatic supply of photocuring accelerator
300: Height measurement sensor for photocuring accelerator
400: Photocurable resin supply device
500: moving heating part
600: Temperature sensor

Claims (5)

광경화성 레진이 수용되는 수조(100);
광경화촉진제를 상기 수조(100)의 바닥에 공급하는 광경화촉진제 자동 공급 장치(200); 및
광경화촉진제의 공급량을 감지하기 위한 광경화촉진제 높이 측정 센서(300);를 포함하는,
3D 프린터용 레진 용기(1000).A water bath (100) in which photocurable resin is accommodated;
A photocuring accelerator automatic supplying device 200 for supplying a photocuring accelerator to the bottom of the water tank 100; And
And a photocuring accelerator height measurement sensor (300) for sensing a supply amount of the photocuring accelerator.
A resin container (1000) for a 3D printer. 제1항에 있어서,
수조 내부로 광경화성 레진을 연속적으로 공급하기 위한 광경화 레진 공급 장치(400)를 더 포함하는 것을 특징으로 하는,
3D 프린터용 레진 용기(1000).The method according to claim 1,
Characterized in that it further comprises a photocurable resin supply device (400) for continuously supplying the photocurable resin into the water tank.
A resin container (1000) for a 3D printer. 제1항 또는 제2항의 3D 프린터용 레진 용기(1000)와,
몸체에 형성된 가이드를 따라 상하로 이동가능하게 설치되며, 수조(100) 내부에 잠겨 레진의 온도를 높이거나 낮추는 온도제어부(500)를 포함하는, 3D 프린터. A resin printer for a 3D printer (1000) according to claim 1 or 2,
And a temperature controller (500) installed vertically movably along a guide formed on the body, the temperature controller (500) being locked inside the water tub (100) to raise or lower the temperature of the resin. 제3항에 있어서,
상기 온도제어부(500)는 수조(100)의 외면으로부터 일정 간격 이격된 위치에 형성되고,
끝단에는 레진의 온도를 높이거나 낮추기 위한 온도 조절 수단이 형성된 것을 특징으로 하는, 3D 프린터. The method of claim 3,
The temperature control unit 500 is formed at a position spaced apart from the outer surface of the water tub 100 by a predetermined distance,
And a temperature adjusting means for increasing or decreasing the temperature of the resin is formed at the end. 제4항에 있어서,
상기 수조(100)의 내벽에는 복수의 온도 센서(600)가 높이 방향으로 배치되고,
상기 온도제어부(500)의 끝단은 광경화촉진제 투입시에 광경화촉진층으로 이동하여, 광경화촉진층의 온도를 제어하는 것을 특징으로 하는, 3D 프린터.
5. The method of claim 4,
A plurality of temperature sensors 600 are arranged in the height direction on the inner wall of the water tub 100,
Wherein the end of the temperature control unit (500) is moved to the photocuring accelerating layer when the photocuring accelerator is charged to control the temperature of the photocuring accelerating layer.
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