WO2015170890A1 - Appareil d'impression 3d - Google Patents

Appareil d'impression 3d Download PDF

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Publication number
WO2015170890A1
WO2015170890A1 PCT/KR2015/004553 KR2015004553W WO2015170890A1 WO 2015170890 A1 WO2015170890 A1 WO 2015170890A1 KR 2015004553 W KR2015004553 W KR 2015004553W WO 2015170890 A1 WO2015170890 A1 WO 2015170890A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom plate
resin
main body
printing apparatus
plate
Prior art date
Application number
PCT/KR2015/004553
Other languages
English (en)
Korean (ko)
Inventor
이병극
Original Assignee
이병극
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이병극 filed Critical 이병극
Publication of WO2015170890A1 publication Critical patent/WO2015170890A1/fr
Priority to KR1020150160593A priority Critical patent/KR101815617B1/ko

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Classifications

    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00

Definitions

  • the present invention relates to a 3D printing apparatus.
  • a 3D printing apparatus for producing a three-dimensional sculpture is laminated with a resin cured by light to produce a desired sculpture.
  • a molding plate Inside the resin tank containing the liquid resin, there is a molding plate that can move up and down on the floor.
  • a light irradiation device for irradiating image light having a desired shape is installed inside the resin tank containing the liquid resin.
  • the liquid resin between the bottom of the molding plate and the bottom of the resin bath is cured.
  • the molding plate is raised by the unit resin layer thickness to stack a new resin layer thereon to form a gap for the new resin layer between the bottom plate and the liquid resin to be filled.
  • the 3D printing apparatus includes a resin bath main body having a light transmitting hole at a bottom thereof and containing a photocurable resin, and an elastic bottom of a transparent elastic material blocking the light transmitting hole of the resin bath main body.
  • a resin bath having a plate;
  • a modeling plate unit having a bottom surface parallel to the elastic bottom plate and a modeling plate installed in the resin bath, and a modeling plate driving part for elevating and driving the modeling plate;
  • a light irradiation part for irradiating image light upward through the light transmission hole at the bottom of the resin tank;
  • a control unit for controlling the model plate driving unit and the light irradiation unit to interlock with each other, wherein the resin bath main body is coupled to the lower main body unit and the lower main body unit. It is achieved by the 3D printing apparatus characterized in that it has an upper body portion to form a bite holding portion interposed the edge area of the elastic bottom plate.
  • the bite holding part preferably has a first biting area extending along the plate surface of the elastic bottom plate and a second biting area bent from the first biting area and extending along the sidewall of the resin bath body.
  • the upper body portion preferably has a bite accommodating portion for accommodating the lower body portion along the sidewall direction in at least a portion of the region.
  • a resin bath support part disposed below the resin bath body and having a support rib protruding upward along the edge of the light transmitting hole to contact the bottom surface of the elastic bottom plate.
  • the bottom of the elastic bottom plate further includes a reinforcing bottom plate for supporting the elastic bottom plate to prevent sagging and horizontal maintenance of the elastic bottom plate.
  • the apparatus may further include a frame unit supporting the resin tank, wherein the frame unit is interposed between the upper frame coupled to the resin tank support part, the lower frame supporting the upper frame, and the upper frame and the lower frame.
  • Including a shock absorbing spring can be alleviated the impact generated during the molding of the molding to ensure the quality of the molded article.
  • the upper frame includes a sliding guide portion disposed to face each other along the length direction of the resin supporting member, and the resin supporting member is slidably coupled through the sliding guide portion.
  • the elastic bottom plate is thin glass, acrylic plate, polycarbonate (PC), polyvinyl chloride (PVC), ethylene tetrafluoride (TFE), ethylene tetrafluoride propylene (FEP), ethylene tetrafluoroalkoxy perfluoroalkoxy Material of at least one of ethylene (PFA), vinylideneprolide (ETFE), vinylprolide (PVF), chlorotrifluoroethylene (DTFE), ethylenechlorotrifluoroethylene (ECTFE), polyester (PE) It is preferable to be made of.
  • the elastic bottom plate preferably has a coating layer coated with at least one of a water-repellent anti-fingerprint coating, an oil-repellent anti-fingerprint coating, a low reflection coating, a Teflon coating, a release coating agent.
  • the coating layer is polyester (PE), ethylene tetrafluoride (TFE), ethylene tetrafluoride hexafluoropropylene (FEP), ethylene tetrafluoride perfluoroalkoxy ethylene (PFA), vinylideneprolide (ETFE), vinylprolide (PVF), chlorotrifluoroethylene (DTFE) and ethylene chlorotrifluoroethylene (ECTFE) made of at least one material, through which it is possible to extend the service life of the elastic bottom plate.
  • PETFE polyester
  • TFE ethylene tetrafluoride
  • FEP ethylene tetrafluoride hexafluoropropylene
  • PFA ethylene tetrafluoride perfluoroalkoxy ethylene
  • EFE vinylideneprolide
  • PVF vinylprolide
  • DTFE chlorotrifluoroethylene
  • ECTFE ethylene chlorotrifluoroethylene
  • a film layer laminated on the surface of the elastic bottom plate wherein one surface of the film layer includes at least one of a water-repellent anti-fingerprint coating, an oil-repellent anti-fingerprint coating, a low reflection coating, a teflon coating, and a release coating. It is coated with a single material, the adhesive is applied to the back surface of the coating layer, it is preferable to reduce the manufacturing time of the elastic bottom plate to be bonded and laminated on the surface of the elastic bottom plate.
  • the film layer is polyester (PE), ethylene tetrafluoride (TFE), ethylene tetrafluoride hexafluoropropylene (FEP), ethylene tetrafluoride perfluoroalkoxyethylene (PFA), vinylideneprolide (ETFE), vinylproline It is preferable that it is made of at least one material of a lide (PVF), chlorotrifluoroethylene (DTFE), ethylene chlorotrifluoroethylene (ECTFE).
  • PETFE ethylene tetrafluoride
  • FEP ethylene tetrafluoride hexafluoropropylene
  • PFA ethylene tetrafluoride perfluoroalkoxyethylene
  • EFE vinylideneprolide
  • vinylproline vinylproline It is preferable that it is made of at least one material of a lide (PVF), chlorotrifluoroethylene (DTFE), ethylene chlorotrifluoroethylene (ECTFE).
  • the bottom plate and the resin layer of the 3D printing apparatus can be easily separated, and the effect of improving the quality of the molded article is provided.
  • FIG. 1 is a perspective view of a 3D printing apparatus according to an embodiment of the present invention
  • FIG. 2 is a longitudinal cross-sectional view of FIG.
  • Figure 4 is a perspective view showing a coupling structure between the resin tank and the upper frame.
  • the 3D printing apparatus has a resin tank 100 containing a photocurable liquid resin for molding a sculpture.
  • the resin bath 100 is supported by the frame unit 500.
  • the light irradiation part 300 is disposed in the lower portion of the resin tank 100 in the frame unit 500 to irradiate the image light toward the resin tank 100.
  • the frame unit 500 blocks the external light from affecting the light irradiation part 300.
  • the molding plate 210 of the molding plate unit 200 is provided on the upper portion of the resin tank 100 so as to be liftable.
  • the molding plate 210 is driven up and down by the molding plate driving unit 230.
  • the molding plate 210 faces the bottom of the resin tank 100 in parallel with a predetermined gap, and when the light from the light irradiation unit 300 is irradiated, the resin in the gap is cured.
  • the unit molding layers are stacked and stacked on the lower surface of the molding plate 210.
  • the molding plate 210 is spaced apart from the bottom surface of the resin bath 100 so that the unit molding layer is formed by a thickness corresponding to the thickness of the unit molding layer in the lowered state.
  • the modeling plate driver 230 driving the modeling plate 210 vertically raises the modeling plate 210 by the thickness of the resin layer when the light irradiation unit 300 irradiates the image light and the resin layer is cured. Laminate moldings.
  • the interlocking of the light irradiation unit 300 and the model plate driving unit 230 is controlled by the control unit 400.
  • the resin tank 100 has a resin tank main body 101 having a light transmission hole 113 at a bottom thereof and accommodating a photocurable resin.
  • the resin bath body 101 is composed of an upper body portion 110 and a lower body portion 130 that are engaged with each other in the vertical direction.
  • the upper body portion 110 is a first bottom flange portion 115 that is bent in a horizontal direction from the lower end of the upper side wall 119 and the upper side wall 119 of the rectangular frame formed along the periphery of the light transmission hole 113.
  • the upper side wall 119 of the upper body portion 110 has a bleeding accommodating portion 116, the lower portion of which is open and forms a receiving space extending vertically upward.
  • a bite protrusion 117 protruding downward is intermittently formed.
  • the lower body portion 130, the lower side wall 139 of the rectangular frame shape, and bent in the horizontal direction from the lower end of the lower side wall 139 along the circumference of the light transmission hole 113 It has an extended second bottom flange portion 135.
  • the lower side wall 139 may be inserted from below into the biting portion 116 of the upper side wall 119.
  • the upper end of the lower side wall 139 is formed with a biting groove 137 corresponding to the biting protrusion 117 of the biting receiving portion 116, the lower body portion 130 is fitted into the inside of the biting receiving portion 116.
  • the bleeding protrusion 117 is fixed by the bleeding groove 137.
  • An elastic bottom plate 150 formed of a thin sheet or film is interposed between the upper main body 110 and the lower main body 130.
  • the elastic bottom plate 150 has a central region blocking the light transmitting hole 113, the peripheral region is sandwiched between the upper body portion 110 and the lower body portion 130 to form a bite holding portion.
  • the bite retaining portion has a first bite region with a circumferential horizontal area of the light transmission hole 113 interposed between the first bottom flange portion 115 and the second bottom flange portion 135, and then the outer region is an upper side wall 119. ) Extends in the vertical direction along the lower side wall 139 and is then bent in the horizontal direction at the top of the lower side wall 139 to have a second engagement region.
  • the elastic bottom plate 150 is penetrated by the pinch protrusion 117 in the upper region of the lower side wall 139 and is firmly fixed. Accordingly, the elastic bottom plate 150 is interposed between the main body parts 110 and 130 and is prevented from being separated from each other by being bent in a crank shape a plurality of times.
  • the elastic bottom plate 150 is bent and retained by plural times between the upper body portion and the lower body portion, but there may be no bite or a bite retaining portion having one or two bent bite structures.
  • the elastic bottom plate 150 is made of a material having an elastic transparent sheet or film and, in some cases, may be installed in a state in which a plurality of sheets overlap.
  • the elastic bottom plate 150 may be a thin glass having a thickness of 0.1 to 0.5mm in some cases.
  • the elastic bottom plate 150 is preferably an acrylic plate, polycarbonate (PC), polyvinyl chloride (PVC), ethylene tetrafluoride (TFE), tetrafluoroethylene hexafluoropropylene (FEP), tetrafluoroethylene perfluoroalkoxy Ethylene (PFA), vinylideneprolide (ETFE), vinylprolide (PVF), chlorotrifluoroethylene (DTFE), ethylenechlorotrifluoroethylene (ECTFE), polyester (PE) or any of these Made of a mixture.
  • PC polycarbonate
  • PVC polyvinyl chloride
  • TFE ethylene tetrafluoride
  • FEP tetrafluoroethylene hexafluoropropylene
  • PFA tetrafluoroethylene perfluoroalkoxy Ethylene
  • Ethylene vinylideneprolide
  • EVF vinylprolide
  • DTFE chlorotrifluoroethylene
  • the elastic bottom plate 150 preferably coats the surface of the elastic bottom plate 150 in order to facilitate separation from the molding layer.
  • the material for coating the elastic bottom plate 150 is teflon, polyester (PE), ethylene tetrafluoride (TFE), ethylene tetrafluoride hexafluoropropylene (FEP), ethylene tetrafluoride perfluoroalkoxy ethylene (PFA), vinyl Fluorine coatings such as leadenprolide (ETFE), vinylprolide (PVF), chlorotrifluoroethylene (DTFE), ethylenechlorotrifluoroethylene (ECTFE) and the like are possible.
  • the anti-fingerprint coating for water repellent, anti-fingerprint coating for oil repellent, low reflection coating can be coated using a release coating agent.
  • the low reflection coating agent is preferably made of silicon dioxide (SiO 2 ), zirconia (ZrO 2 ), indium tin oxide, titanium dioxide (TiO 2 ), aluminum oxide (Al 2 O 3 ).
  • a film layer (not shown) coated on the elastic bottom plate 150 may be laminated and used on an outer surface.
  • the upper surface of the film layer (not shown) is coated with at least one material of the above-described coating agent, it is preferable that the adhesive is applied to the back of the film layer (not shown) to be bonded to the elastic bottom plate 150.
  • the film layer (not shown) may be laminated by connecting a plurality of tapes or a wide plate shape.
  • the resin bath support unit 170 is disposed below the resin bath main body 101 and is coupled to the resin bath main body 101 in the vertical direction.
  • the resin bath support part 170 has a support rib 171 protruding upward along the edge of the light transmission hole 113 to contact the bottom surface of the elastic bottom plate 150.
  • the support rib 171 contacts the elastic bottom plate 150 to support the elastic bottom plate 150.
  • the resin supporting member 170 is preferably made of a glass plate of a transparent transparent material so that the image light irradiated from the light irradiation unit 300 passes.
  • a reinforcement bottom plate (not shown) is disposed along the circumference of the support rib 171.
  • the reinforcement bottom plate (not shown) is installed spaced apart from the elastic bottom plate 150 by a predetermined interval to facilitate elastic deformation of the elastic bottom plate 150.
  • the elastic bottom plate 150 may be installed to be in close contact with the lower portion of the elastic bottom plate to prevent sagging or to keep the elastic bottom plate 150 horizontal.
  • the reinforcement bottom plate (not shown) is preferably made of a harder material than the elastic bottom plate 150 to reinforce the elastic bottom plate 150.
  • FIG. 4 is a perspective view illustrating a coupling structure between the resin tank 100 and the frame unit 500.
  • the frame unit 500 has an upper frame 510 coupled with the resin tank support 170, and a lower frame 530 supporting the upper frame 510.
  • the upper frame 510 has sliding guide portions 511 disposed to face each other along the longitudinal direction of the upper frame 510 in order to couple and fix the resin tank support 170.
  • the resin supporting member 170 is slidably coupled to the front and rear directions of the upper frame 510 to the sliding guide part 511.
  • the upper frame 510 further includes a leaf spring 570 to more firmly couple the resin tank support 170.
  • the leaf spring 570 is in close contact with one side of the resin tank support 170, and serves to elastically support the resin tank 100. This facilitates the coupling and separation of the resin tank support unit 170, it is possible to secure a firm position even in the external swing.
  • the lower frame 530 is installed below the upper frame 510.
  • the lower frame 530 is coupled to the upper frame 510 by a predetermined bolt spaced apart from the predetermined frame, and the buffer spring 550 is interposed between the spaced spaces.
  • the buffer spring 550 interposed between the upper frame 510 and the lower frame 530 reduces the vertical load applied when the elastic bottom plate 150 and the resin layer are separated during molding of the molding in the resin tank 100. By performing a buffer action to prevent damage to the resin tank (100). This improves the durability of the resin tank 100, it is possible to ensure the quality of the molded article.

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

Abstract

L'invention concerne un appareil d'impression 3D comprenant : un réservoir de résine comprenant un corps principal de réservoir de résine dont le fond est doté de trous laissant pénétrer la lumière et contenant de la résine photopolymérisable et une plaque inférieure souple constituée de matière transparente et souple pour le blocage des trous laissant pénétrer la lumière du corps principal de réservoir de résine ; une unité plaque de moulage comprenant une plaque de moulage ayant une surface inférieure parallèle à la plaque de fond souple et disposée dans l'intérieur du réservoir de résine et une unité d'entraînement de plaque de moulage pour l'entraînement vertical de la plaque de moulage ; une unité d'émission de lumière pour émettre un faisceau en forme d'image à partir du fond du réservoir en passant par les trous laissant pénétrer la lumière ; et une unité de commande pour la commande de l'appareil afin que l'unité d'entraînement de la plaque de moulage et l'unité d'émission de lumière soient liées, le corps principal de réservoir de résine ayant des éléments caractéristiques techniques comprenant : un corps principal inférieur comprenant les trous laissant pénétrer la lumière ; et un corps principal supérieur couplé au corps principal inférieur pour former une partie de maintien de contact dans laquelle les parties souples de la plaque de fond souple sont intercalées entre le corps principal supérieur et le corps principal inférieur. Par conséquent, la plaque inférieure et la couche de résine de l'appareil d'impression 3D peuvent être facilement séparées et l'avantage de maintenir la qualité du produit moulé est assuré.
PCT/KR2015/004553 2014-05-07 2015-05-07 Appareil d'impression 3d WO2015170890A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150160593A KR101815617B1 (ko) 2014-05-07 2015-11-16 3d 프린팅 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0053966 2014-05-07
KR20140053966 2014-05-07

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514635A (zh) * 2016-11-17 2017-03-22 同济大学 一种利用3d打印笔的智能3d打印机械臂
WO2017085648A3 (fr) * 2015-11-17 2017-06-29 Nyomo Limited Impression 3d
KR101772999B1 (ko) * 2016-07-14 2017-08-31 오스템임플란트 주식회사 3d 프린팅 장치
WO2018223761A1 (fr) * 2017-06-06 2018-12-13 北京清锋时代科技有限公司 Dispositif d'impression 3d et procédé d'impression 3d
CN109910295A (zh) * 2019-04-09 2019-06-21 苏州慧通汇创科技有限公司 一种质量轻且高强度的dlp激光快速成型3d打印机支撑结构
CN110435137A (zh) * 2019-08-23 2019-11-12 杭州德迪智能科技有限公司 一种高频剪切光固化三维成形装置及方法
CN111958973A (zh) * 2020-07-08 2020-11-20 杨涛 一种新型激光3d打印机
US20210354392A1 (en) * 2018-11-01 2021-11-18 Stratasys, Inc. System for window separation in an additive manufacturing process
CN113751726A (zh) * 2021-06-15 2021-12-07 山东鑫聚龙动力科技集团有限公司 一种发动机窄壁3d打印成型方法
WO2023063550A1 (fr) * 2021-10-13 2023-04-20 오스템임플란트 주식회사 Imprimante tridimensionnelle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102050428B1 (ko) * 2018-04-03 2019-11-29 조규남 3d프린터의 소재트레이
US10967573B2 (en) * 2019-04-02 2021-04-06 NEXA3D Inc. Tank assembly and components thereof for a 3D printing system

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JPH06246838A (ja) * 1993-02-26 1994-09-06 Teijin Seiki Co Ltd 光造形装置
JP2007536130A (ja) * 2004-05-07 2007-12-13 エンヴィジョンテック ゲーエムベーハー 構成面からの硬化材料層の分離が改良された、３次元物体を製造するための方法
JP2010240865A (ja) * 2009-04-01 2010-10-28 Real Vision Systems Inc 光造形装置

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CN204235899U (zh) * 2014-09-01 2015-04-01 上海联泰三维科技有限公司 用于底部投影式快速成型的树脂槽及底部投影式快速成型装置

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH06246838A (ja) * 1993-02-26 1994-09-06 Teijin Seiki Co Ltd 光造形装置
JP2007536130A (ja) * 2004-05-07 2007-12-13 エンヴィジョンテック ゲーエムベーハー 構成面からの硬化材料層の分離が改良された、３次元物体を製造するための方法
JP2010240865A (ja) * 2009-04-01 2010-10-28 Real Vision Systems Inc 光造形装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017085648A3 (fr) * 2015-11-17 2017-06-29 Nyomo Limited Impression 3d
KR101772999B1 (ko) * 2016-07-14 2017-08-31 오스템임플란트 주식회사 3d 프린팅 장치
CN106514635B (zh) * 2016-11-17 2019-03-01 同济大学 一种利用3d打印笔的智能3d打印机械臂
CN106514635A (zh) * 2016-11-17 2017-03-22 同济大学 一种利用3d打印笔的智能3d打印机械臂
WO2018223761A1 (fr) * 2017-06-06 2018-12-13 北京清锋时代科技有限公司 Dispositif d'impression 3d et procédé d'impression 3d
US11938675B2 (en) 2017-06-06 2024-03-26 Luxcreo (Beijing) Inc. 3D printing device and 3D printing method
US11878472B2 (en) * 2018-11-01 2024-01-23 Stratasys, Inc. System for window separation in an additive manufacturing process
US20210354392A1 (en) * 2018-11-01 2021-11-18 Stratasys, Inc. System for window separation in an additive manufacturing process
CN109910295A (zh) * 2019-04-09 2019-06-21 苏州慧通汇创科技有限公司 一种质量轻且高强度的dlp激光快速成型3d打印机支撑结构
CN109910295B (zh) * 2019-04-09 2024-04-26 苏州慧通汇创科技有限公司 一种质量轻且高强度的dlp激光快速成型3d打印机支撑结构
CN110435137A (zh) * 2019-08-23 2019-11-12 杭州德迪智能科技有限公司 一种高频剪切光固化三维成形装置及方法
CN111958973A (zh) * 2020-07-08 2020-11-20 杨涛 一种新型激光3d打印机
CN113751726A (zh) * 2021-06-15 2021-12-07 山东鑫聚龙动力科技集团有限公司 一种发动机窄壁3d打印成型方法
WO2023063550A1 (fr) * 2021-10-13 2023-04-20 오스템임플란트 주식회사 Imprimante tridimensionnelle

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Publication number Publication date
KR20160131845A (ko) 2016-11-16
KR101815617B1 (ko) 2018-01-05

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