WO2015124819A1 - Imprimante tridimensionnelle - Google Patents

Imprimante tridimensionnelle Download PDF

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Publication number
WO2015124819A1
WO2015124819A1 PCT/ES2015/070111 ES2015070111W WO2015124819A1 WO 2015124819 A1 WO2015124819 A1 WO 2015124819A1 ES 2015070111 W ES2015070111 W ES 2015070111W WO 2015124819 A1 WO2015124819 A1 WO 2015124819A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin
platform
tray
dimensional printer
horizontal
Prior art date
Application number
PCT/ES2015/070111
Other languages
English (en)
Spanish (es)
Inventor
Joan RAVENTÓS CORRAL
Original Assignee
Stalactite 3D, S.L.
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 Stalactite 3D, S.L. filed Critical Stalactite 3D, S.L.
Publication of WO2015124819A1 publication Critical patent/WO2015124819A1/fr

Links

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
    • 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
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • 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
    • 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
    • B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
    • 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
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete

Definitions

  • the present invention relates to a three-dimensional printer, suitable for printing three-dimensional parts or prototypes in resin and comprising: a tray containing a photopolymerizable resin; a light source controlled by a control system; a modeling platform suitable for prototype support during the formation therein of successive layers of light-curing resin, solidified by light projection; and a drive device suitable for separating the bottom of the tray from the successive layers of solidified resin.
  • the printer of the invention has characteristics oriented to improve the separation of the solidified resin layers from the bottom of the tray containing the light-curing resin, and to improve the positioning of the modeling platform at a certain point prior to the solidification of the successive ones. layers of resin in the part or three-dimensional model.
  • This invention is applicable in the manufacture of three-dimensional printers.
  • three-dimensional or 3D printers which have a molding platform on which the three-dimensional part or prototype is formed, from the solidification of successive layers of light-curing resin.
  • This resin is initially in a fluid state, inside a container tray, being arranged above or below said tray a light source that is controlled in a known manner by a control system, into which the user enters the characteristics of the piece or prototype Three-dimensional to print.
  • the modeling platform is associated with vertical displacement means that allow small displacements of the platform in an upward direction as new layers of photopolymerizable resin are solidified on the lower end of the piece or prototype by the action of the source of light.
  • This tilting movement is produced by an eccentric piece that presses one side of the tray towards the lower area, and springs that return the tray to its zero, or reference, level on the vertical axis.
  • the molding platform is moved with a purely vertical movement and of an adequate amplitude to constitute a new layer of solidified resin on the lower end of the piece or prototype
  • This peeling or molding technique has several drawbacks, among which are the following: the incorporation into the printer of two different drive systems (one to cause the tilting of the tray and the other to move the molding platform vertically); possible errors of repositioning the tray at a zero level due to the action of the springs, said tray being kept in a floating position on the springs; and the ability to peel or release printing surfaces of a reduced amplitude when the tilting of the tray is applied only on one of the sides thereof. Therefore, the technical problem that arises is the development of a three-dimensional printer that allows solving the problem described above.
  • the three-dimensional printer object of the invention comprises a series of elements common in this type of printers, such as: a tray containing a photopolymerizable resin; a light source controlled by a control system; a modeling platform suitable for prototype support during the formation therein of successive layers of solidified photopolymerizable resin by light projection; and a drive device suitable for separating or peeling, from the bottom of the tray, the successive layers of resin solidified in the prototype.
  • This printer has some constructive features aimed at solving the problems described above.
  • one of the objectives of the invention is to use a single device to move the platform vertically between the formation of successive layers of solidified resin and to peel or separate said layers from the bottom of the resin container tray, simplifying manufacturing and reducing the costs of the three-dimensional printer.
  • Another object of the invention is to eliminate the repositioning errors of the resin container tray at a zero level, or reference, prior to the solidification of each resin layer.
  • Another object of the invention is to improve the peeling or separation of the successive layers of solidified resin from the bottom of the tray, especially in the case of larger printing surfaces.
  • the tray containing the light-curing resin is fixed, that is, it is kept static in the position corresponding to the zero or reference level during the printing process; while the modeling platform is mounted on a drive device with the possibility of vertical displacement and lateral tilting between two extreme positions in which said platform it forms two acute angles of opposite directions with respect to the horizontal.
  • FIG. 1 shows a schematic elevation view of an exemplary embodiment of a three-dimensional printer according to the invention.
  • FIGS. 2a and 2b show schematic views of the printer of the previous figure during the printing of a piece or prototype and more specifically during peeling or separating the tray from the last layer of resin solidified, being able to observe the inclined platform respectively in two opposite directions with respect to the horizontal.
  • the three-dimensional printer comprises a tray (1) arranged in a fixed position and containing a photopolymerizable resin (2), in a fluid state.
  • a light source (3) connected to a control system (not shown) that is responsible for carrying out the photopolymerization and solidification of successive layers of the resin (2) to form a piece or prototype (4) arranged on a modeling platform (5) located above the tray (1).
  • Said platform (5) is mounted on a drive device comprising at least two movable supports (6) that can be moved vertically independently and to which they are fixed, with the possibility of turning with respect to two horizontal axes (7), two opposite ends of a bridge (8) carrying the modeling platform (5), and linear actuators (1 1 -13) independently operable for the vertical displacement of the respective movable supports (6) and the tilting of the platform (5) in opposite directions with respect to the horizontal.
  • the supports (6) are provided with linear bearings (9) mounted with the possibility of longitudinal displacement in vertical guides (10).
  • Said supports (6) move vertically by the action of respective linear actuators (1 1 -13), which in this embodiment comprise threaded bushings (13) fixed to the aforementioned movable supports (6) and mounted on two spindles ( 1 1) verticals connected to two motors (12) step by step, independently driven.
  • respective linear actuators (1 1 -13) which in this embodiment comprise threaded bushings (13) fixed to the aforementioned movable supports (6) and mounted on two spindles ( 1 1) verticals connected to two motors (12) step by step, independently driven.
  • the drive device In order to peel or release the bottom of the tray (1) of each layer of photopolymerized and solidified resin (2), the drive device initially performs the lifting of one of the supports (6), specifically, in the example, the corresponding to the right side in figure 2a, and then the elevation of the support (6) corresponding to the left side of the platform, as shown in figure 2b.
  • the platform (5) tilts laterally between two extreme positions in which it forms two acute angles of opposite directions with respect to the horizontal, guaranteeing the peeling or separation of the entire surface of the solidified resin layer, regardless of Its size or extension.

Landscapes

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

Abstract

L'invention concerne une imprimante 3D conçue pour l'impression de pièces et de prototypes (4) tridimensionnels en résine (2) photopolymérisable et qui comprend : - un plateau (1) de réception de la résine (2) horizontal, fixe et disposé sur une source de lumière (3); et, - une plateforme (5) de modelage montée sur un dispositif d'actionnement, vertical et à basculement latéral entre deux positions extrêmes formant deux angles aigus de sens opposés par rapport à l'horizontale; le dispositif d'actionnement comprenant deux supports (6) déplaçables dans le sens vertical sur lesquels sont montées deux extrémités d'un pont (8) assurant le support de la plateforme (5), les extrémités pouvant tourner par rapport aux axes horizontaux respectifs (7); et des actionneurs linéaires (11 -13) actionnables de façon indépendante. Lesdits actionneurs linéaires comprennent des manchons filetés (13) fixés aux supports respectifs (6) déplaçables et montés sur les vis (11) verticales reliées aux moteurs (12) respectifs pas à pas à actionnement indépendant. Les supports (6) déplaçables comprennent des paliers linéaires (9) respectifs montés pouvant se déplacer dans le sens longitudinal sur des guides verticaux (10) respectifs.
PCT/ES2015/070111 2014-02-19 2015-02-18 Imprimante tridimensionnelle WO2015124819A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201430222A ES2461942B1 (es) 2014-02-19 2014-02-19 Impresora tridimensional
ESP201430222 2014-02-19

Publications (1)

Publication Number Publication Date
WO2015124819A1 true WO2015124819A1 (fr) 2015-08-27

Family

ID=50725529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2015/070111 WO2015124819A1 (fr) 2014-02-19 2015-02-18 Imprimante tridimensionnelle

Country Status (2)

Country Link
ES (1) ES2461942B1 (fr)
WO (1) WO2015124819A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106938536A (zh) * 2017-03-29 2017-07-11 深圳市乐业科技有限公司 一种打印流畅且无断层的智能型3d打印装置
WO2022010332A1 (fr) * 2020-07-10 2022-01-13 주식회사 류진랩 Imprimante 3d et procédé d'impression 3d
GB2617595A (en) * 2022-04-13 2023-10-18 Thales Holdings Uk Plc Adaptive lifting of build platform for additive manufacturing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626586B (zh) * 2015-01-28 2017-05-03 东莞理工学院 基于dmd的光固化成型方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2253467T3 (es) * 2001-04-20 2006-06-01 Envisiontec Gmbh Dispositivo para la fabricacion de un objeto tridimensional.
EP1946908A2 (fr) * 2007-01-17 2008-07-23 3D Systems, Inc. Système d'imagerie solide avec suppression de l'excès de matériau de construction non durci
US20080174050A1 (en) * 2006-12-22 2008-07-24 Roland Dg Corporation Three-dimensional molding device
US20110089610A1 (en) * 2009-10-19 2011-04-21 Global Filtration Systems Resin Solidification Substrate and Assembly
WO2011111957A2 (fr) * 2010-03-10 2011-09-15 주식회사 캐리마 Appareil de stéréolithographie pour la production rapide de formes couche sur couche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2253467T3 (es) * 2001-04-20 2006-06-01 Envisiontec Gmbh Dispositivo para la fabricacion de un objeto tridimensional.
US20080174050A1 (en) * 2006-12-22 2008-07-24 Roland Dg Corporation Three-dimensional molding device
EP1946908A2 (fr) * 2007-01-17 2008-07-23 3D Systems, Inc. Système d'imagerie solide avec suppression de l'excès de matériau de construction non durci
US20110089610A1 (en) * 2009-10-19 2011-04-21 Global Filtration Systems Resin Solidification Substrate and Assembly
WO2011111957A2 (fr) * 2010-03-10 2011-09-15 주식회사 캐리마 Appareil de stéréolithographie pour la production rapide de formes couche sur couche

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106938536A (zh) * 2017-03-29 2017-07-11 深圳市乐业科技有限公司 一种打印流畅且无断层的智能型3d打印装置
WO2022010332A1 (fr) * 2020-07-10 2022-01-13 주식회사 류진랩 Imprimante 3d et procédé d'impression 3d
GB2617595A (en) * 2022-04-13 2023-10-18 Thales Holdings Uk Plc Adaptive lifting of build platform for additive manufacturing

Also Published As

Publication number Publication date
ES2461942A1 (es) 2014-05-21
ES2461942B1 (es) 2014-12-12

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