• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    For continuous and / or non-continuous construction of a component, a photosensitive substance (5) is arranged in a trough (13) with an at least partially transparent bottom (23) and a semipermeable layer (7) and a phase (9) is provided underneath which forms an intermediate layer (11) within the photosensitive substance (5); below the tank bottom (23) there is a light source (25) for the partial hardening of the photo-reactive substance (5); above the semipermeable layer (7), a construction platform (31), which can be lifted and lowered relative to this, is arranged to receive the individual component layers (3i); at least one driver (15) extends from the semipermeable layer (7) in the direction of the building platform (31), and it is movable relative to the tub bottom (23) for a transport effect for Nachförderung the photo-reactive substance (5).
    公开号:AT518465A1
    申请号:T50247/2016
    申请日:2016-03-25
    公开日:2017-10-15
    发明作者:Stadlmann Klaus
    申请人:Stadlmann Klaus；
    IPC主号:
    专利说明:

    The invention relates to a stereolithography apparatus for the layered, continuous and / or non-continuous construction of a three-dimensional body, comprising a tub having an at least partially translucent bottom, a semipermeable layer, a construction platform which is relatively movable in at least one direction and which serves as support for the generated Layers serves, and at least one under the trough in at least one direction movable light source for the controlled curing of a photosensitive substance, by a chemically inert phase or light-insensitive phase and / or intermediate phase.
    Furthermore, the invention relates to a method which allows to generate a three-dimensional object, depending on the present geometric expression of the sub-layer, continuously or non-continuously by using a semi-permeable layer, as well as a geometric body which in such a system or Well is integrated.
    Generating three-dimensional (3D) bodies with the aid of light-curing substances, such as a photo-resin, which are cured in layers, wherein the cross-sectional information is created by a mask projection method or by a laser source is under a variety of terms, such as 3D Printing, additive manufacturing or rapid prototyping In generative production machines, which enable a continuous printing process, usually pixel-controlled DLP, MEMS or controllable lasers are used for the exposure of the cross-section or the layers This solid layer adheres to a support and is removed from a reference surface by lifting the support, thus successively forming a three-dimensional body of the photosensitive substance.
    From the prior art solutions are known which describe the withdrawal forces in a stereolithography process during the separation process of differently formed reference surfaces, and which disclose a continuous printing process. One of the biggest problems with systems that provide bottom exposure is the removal of the component layers just generated, without destroying the component and allowing new photosensitive liquid to flow into the gap between the device layer and the reference surface. If the component is released from the bottom plate of the tub so that a safe demolding is possible, this has a negative impact on the speed of the construction process, in the literature, such. in CA 2 054 276 A1, various methods for solving the component layer of a trough bottom are described; thereby, e.g. Silicone layers, release films and the like. Used. However, all these methods do not allow a continuous process and thus increase the construction time of the object. In this case, however, almost any size of component surfaces can be generated because the height of the return stroke and introduction of a waiting time, the possibility is created that new photoreactive substance can flow. The recent literature discloses systems which are capable of facilitating a continuous construction process, for example by using a multiphase system. It comes only to a small return stroke, which takes place continuously. Thereby, the height of the gap, which is formed for the release of the photoreactive substance, in the order of the desired layer thickness. This leads to an insufficient transport of new photosensitive liquid into the gap, especially for large component surfaces. Also, when multiphase systems are used, the interface is not stable, and waviness or the like may occur.
    An example of such a method is described in US 4,996,010 A. In this case, a trough is provided for receiving a photosensitive liquid in which a light-insensitive substance is also layered below the photo-reactive substance. The exposure takes place from below, through the light-insensitive layer, and the curing of the layer takes place at the phase boundary of the two layers. The advantage of such an arrangement lies in the minimization of the necessary force, which is necessary in the separation of the just hardened layer.
    The document WO 2015/164234 A1 shows a system with several chemical phases which are immiscible with the photosensitive layer over an unreactive carrier phase. This arrangement is also used for the continuous generation of a three-dimensional object. The lower phase must have a higher density than the layered, photosensitive substance.
    Another multi-phase system is shown in DE 10 2013 102 377 Al. In this case, a component is moved along the phase boundary in order to level the phase boundary. This component is in direct contact with both phases and can correct the component cross-section dependent interactions between the phases. However, this arrangement has disadvantages in terms of handling in operation. Also, the speed at which the component can move along the phase boundaries is limited by flow effects.
    The known methods also have the disadvantage that in the non-continuous generation of a component, depending on the geometric layer information, an impression cushion is formed in the carrier phase, which leads to a distortion or to an accumulating error in the component. Also, the lower carrier phase must have a higher density than the photosensitive substance layered over it. Furthermore, the process speed is limited by the moving at the phase boundary component in non-continuous operation. Also, the material of which the component is made, which moves at the phase boundaries, limited by the chemical properties of the two phases (corrosion). Moreover, the cleaning of the component and the tub is very expensive. The process stability in the case of direct contact between two phases leads to undesired effects over the entire process time, for example to inclusions of the carrier phase in the cured component layer, and to a component quality dependent on the cross section.
    The invention has for its object to provide a stereolithography apparatus or a method, wherein the aforementioned disadvantages are eliminated, and a simpler, faster, more accurate, continuous and / or non-continuous and economical generation of three-dimensional bodies, even at low Layer thicknesses and large exposure areas, is made possible. In particular, an improved method is to be presented, which solves the problem of transport of new photosensitive substance in the gap, which is created by the lifting of the last formed layer, and is able to arbitrarily between a continuous and non-continuous process change, with an increase in the efficiency of the system should be achieved.
    In the present stereolithography apparatus, a semipermeable layer (such as a film) is provided which allows the chemical phase located below the semipermeable layer, which can be in different states of matter (gaseous or liquid), depending on the phase used, can diffuse through the semipermeable layer to interact with the photosensitive substance disposed over the semipermeable layer, whereby, for example, oxygen inhibition forms a thin layer within the photosensitive substance which has a different photo-reactivity than the remaining photosensitive substance having.
    According to the invention, a transport capability is also created by the semipermeable layer so that new photo-active substance can be conveyed into the gap formed between the semipermeable layer and the last-formed component layer. This is made possible in particular by a geometric expression of the semipermeable layer, which expression may be formed by the film itself, e.g. by at least one additional element or at least one geometric elevation, which is attached to the semipermeable layer, or by a movable element located below or above the semipermeable layer, or by a controlled deformation of the film, for example by oscillation or suppression Also, the desired transport effect may be achieved by a combination of the methods described herein For example, the transport of photoreactive fluid may be facilitated by relative movement between the semipermeable layer and / or by a moveable camber of the semipermeable layer.
    Preferably, the semipermeable layer is in a tensioned condition that ensures that a smooth component surface can be created.
    Preferably, a trough is provided, wherein the semipermeable layer either directly forms a bottom, or an additional, at least partially translucent bottom is provided. The trough serves to receive and / or interact with at least one photoreactive substance and an at least partially translucent, non-photoreactive phase. In particular, the semipermeable layer is located within the tub or this layer is in majority in contact with the photosensitive liquid. Preferably, at least one side of the semipermeable layer comes with a chemical
    Substance at least partially in contact; Preferably, both sides of the semipermeable layer come into contact with different chemical phases. In another embodiment, the trough has openings through which the semipermeable layer passes, wherein the openings are configured so that substantially no photoreactive substance, other liquids or gases can escape. This arrangement permits movement of the semipermeable layer relative to the well and / or device layer, wherein the drive or parts thereof are not in contact with the photoreactive substance or the like and may also be present outside the well assembly. The well may have multiple chambers or regions that allow different phases to interact with the semipermeable layer and permit movement of the semipermeable layer while interacting (diffusion) in a simpler, more compact, and modular fashion.
    Preferably, the enrichment or diffusion of the semipermeable layer to form a photochemically inactive intermediate layer in the photoreactive substance, even outside the area in which the semipermeable layer is in contact with the photocuring substance, particularly preferably in the area where the semipermeable layer in Contact with the photosensitive substance is done.
    Also, with the aid of or through the semipermeable layer, a geometric shape can be created, which creates an increase, which is for example in the range of the layer thickness of the component or below, but is designed so that, as already mentioned, a transport Possibility for the photoreactive substance allowed. Preferably, the geometric elevation can be adjusted automatically by a control unit to an optimum height, which results for example from process parameters such as layer thickness, transport speed, viscosity of the photoactive substance and the like. This allows an efficient and intelligent promotion of the photoreactive substance, wherein the photoreactive substance may also be pasty.
    Ensuring the transport of the photosensitive substance can be carried out in each described variant of the invention by at least one entire pass of the geometric increase.
    The invention will be explained below with reference to preferred embodiments shown in the drawings, to which, however, it should not be limited. Show it:
    Fig. 1 is a plant in a schematic view;
    Fig. La a detail of this Appendix;
    FIG. 1b shows a possible embodiment of a geometrical elevation for the transport of photoreactive substance in a detailed view; FIG.
    Fig. 2a to Fig. 2d, the operation of the system of Figure 1 with reference to schematic partial views, which are limited for the purpose of understanding a relevant excerpt and illustrate different process stages a) to d) of the method according to the invention.
    Fig. 3a, 3b, 3c, 3d, the operation of a second embodiment of the system in various stages;
    Fig. 3a 'is a fragmentary detail view of Fig. 3a;
    Fig. 4 shows a further embodiment of the invention, with a modified transporter elevation which, moreover, can be realized both in the first and the second embodiment;
    Fig. 5 is a comparison with Figure 4 modified embodiment, which, however, can be used in any embodiment of the invention;
    Fig. 6 shows a possible variant of the invention, in which the transport element is part of the system; and
    Fig. 7 shows yet another embodiment of the invention in which a movable light source is provided and the transport element is designed to be transmissive to the radiation.
    Fig. 1 shows a plant 1 for generating, i. Construction of a three-dimensional component or body 3 by so-called "rapid prototyping." The body 3 can be produced from individual layers 3i, where i = 1, 2, 3, ..., discontinuously or continuously from a photoactive substance 5 Photoreactive substance 5 is curable by irradiation with light, for example UV light, where the term "light" is understood to mean any type of electromagnetic radiation which is suitable for curing the (particular) substance 5. The photoreactive substance 5 is e.g. essentially "liquid", which term is also understood to mean a pasty consistency with an arbitrary viscosity.
    The photoreactive substance 5 is at least partially in contact with a semipermeable layer or layer 7, which in turn is at least partially in contact with a second phase 9. The term "phase" chemical compositions of any state of matter understood, including gases, eg oxygen, air, except for liquids, such as water or silicone oil, of any consistency, at least partially permeable to the radiation for curing the photo-reactive substance 5 or are translucent.
    The semipermeable layer 7 is at least partially permeable to the phase 9, e.g. by diffusion of oxygen, 9 interacts with this phase and leads to the formation of an intermediate phase 11 in the photo-reactive substance 5, which has an at least limited to no reactivity and is thus not cured by the incident radiation. The semipermeable layer 7 forms the reference surface for the stereolithography process over which the intermediate phase formed by diffusion of the phase 9 (e.g., air) through the layer 7 within the photoreactive substance 5 is located. The semipermeable layer 7 is at least so taut that it prevents the formation of an impression pad or a deformation / displacement of the lower chemical phase 9 by the liquid mass of the photo reactive substance 5 and thus the formation of inaccuracies, for example, a sag of the semipermeable layer 7 (FIG. Reference surface) prevented. The semipermeable layer 7 is also at least partially permeable or transparent to the radiation necessary for curing the photoreactive substance 5 and may be formed, for example, by a transparent film. The semipermeable layer 7 can also be provided to ensure the transport of new photoreactive substance 5 between the last-formed component layer 3m and the semipermeable layer 7 or to provide a new intermediate phase 11. Enrichment of the semipermeable layer 7 with a phase 9 to form an intermediate phase 11 can also take place in the case of no contact with the photoreactive substance 5. This can be done for example by a relative movement of the at least partially tensioned semipermeable layer 7 relative to the trough 13 or the component 3. The semipermeable layer 7 preferably has a geometric elevation, generally a driver 15, which favors the transport of the photo-active liquid 5. By way of example, two rollers 17, which are capable of tensioning or receiving the semipermeable layer 7, is made possible by the specification of the direction of rotation by a machine control 19, the tensioning and / or adjustment of the semipermeable layer 7, s. Double arrows in Fig. 1 and Fig. 2a to Fig. 2d. By sealing elements 21, the escape of substance from the tub 13 is prevented and also allows stripping of the semipermeable layer 7 upon exiting.
    It is also the use of a liquid phase 9, apart from a gaseous phase 9, possible, and the trough 13 has a translucent bottom plate 23, below which there is a movable and controllable light source 25, which for curing the photo-reactive substance. 5 necessary radiation supplies. The light source 25 may, for example, be a digital mask projection device which can expose the respective component cross-section with pixel accuracy using a DLP chip and an LED as a radiation source. In the embodiment of the invention shown in FIG. 1, the phase 9 can be conveyed into the trough 13 at any time via a pumping device 27 by means of a line 27 '. In this case, the pump device 27 can also be designed so that it is capable of an oscillation of the semipermeable layer 7, e.g. by temporal variation of the volume flow of the phase 9, in order thus to cause a further transport effect for the photoreactive substance 5 by an oscillation of the semipermeable layer 7 caused in this way a diaphragm 27 "can be effected in the conduit 27 'or in the pumping device 27. Above the trough 13, which rests on a carrier element 29 (see Fig. 1) or is part of it, there is a building platform 31, which with is coupled to a drive 33 which is connected, for example by a frame 35 with the system 1 and is able to wear the formed component layers 3i, 3¾, etc., and which is raised and lowered relative to the tub 13. The control unit 19 allows in their range of functions various control and regulating tasks, such as the raising and lowering of the construction platform 31, moving the light source 25 in the engine room 37 un d the control of the energy input by the light source 25, the voltage and the movement of the semipermeable layer 7, etc.
    The build platform 31 is substantially configured to provide a planar plane for adhering the device layers 3i; However, the construction platform 31 may also have geometric shapes or structures which promote the adhesion of the substance 5 or of the (top) component layer (s) and at the same time minimize the displacement of the photoactive substance 5.
    If the build platform 31 is immersed in the photoreactive substance 5 and is at a value of the layer thickness (eg 100 microns) above the intermediate phase 11 and / or over the semipermeable layer 7, the light source 25 is activated, preferably automatically via the control unit 19 , The build platform 31 can be moved upwardly continuously and is coupled to the light source 25 by the controller 19 in a manner that enables a continuous build process, depending on the cross-sectional area of the component 3. If the cross-section of the component 3 has a size or surface which is unfavorable for a continuous construction process, this is recognized from the layer data by the controller 19, and a discontinuous construction process is initiated, wherein to ensure the transport of the photo-reactive substance 5 - the semipermeable layer 7 is moved. The controller 19 can determine the cross-sectional areas from the known cross-sectional data of the layers 3i, which are for example in the form of a plurality of pixel-based images. This is achieved, for example, by counting the pixels necessary for the cross section of the body 3 to be generated (e.g., white pixels in a black and white image).
    The light source 25 is designed to allow a continuous building process, for example by using a pixel-controlled light source, such as a light source. a DLP projector capable of exposing an entire area at once. Here, the desired component layer 3i is formed by solidification of the photoreactive substance 5 in regions and selectively.
    The geometric increase or the driver 15, which favors the (horizontal) transport of the photo-reactive substance 5, can also consist of a different material than that of the semipermeable layer 7 and be constructed in one or more parts.
    The at least one, e.g. Rod-shaped geometric driver increase 15 may also have a different triangular shape than shown in Fig.l. For example, the elevation 15 can also have a rectangular cross-section, or as shown in FIG. 1b, a plurality of geometric elevations 15i, 152, 153, etc. can also be summarized as 15i, connected in series, if necessary in several parts and / or in steps. It is also possible to use different geometric basic shapes to generate the geometric increase 15i or 15.
    The bottom 23 of the tub 13 may itself have some permeability to the phase 9 (for example, oxygen) so as to favor the formation of the intermediate phase 11, while at the same time providing a protective function in the failure of the semipermeable layer 7.
    FIGS. 2 a to 2 d show, in sections, variants or different process stages based on the plant already described according to FIG. 1. In FIG. 2 a, the plant 1 is in a position in which the last-formed layer 3 i is new raised to be created layer thickness. The component 3 has a cross section which can no longer be produced without active transport of photoreactive substance 5 into the gap 20 formed. According to FIG. 2 b, a flow is induced by the movement of the semipermeable layer 7, the geometric cam elevation 15 and the intermediate phase 11 with respect to the trough 13, which promotes new photoactive substance 5 into the gap 20. This process step is carried out at least once. In Fig. 2c, the transport process is already completed, the gap 20 is completely filled with photoreactive substance 5 and a renewed exposure process can take place, which leads to the formation of the next component layer 3i. In Fig. 2d, the finished component layer 3i is shown, and there is subsequently a lifting of the component 3 by the build platform 31 by the desired layer thickness, and the process begins again.
    FIGS. 3a to 3c show an embodiment of the invention in which the semipermeable layer 7 (eg film) is tensioned and deformed therein by a driver-pressure element 39, which may be located, for example, below the semipermeable layer 7 within a well chamber 41 in that the pressure element 39 can be moved in at least one direction within the phase 9, and by forming the geometric pressure element elevation 15 is able to allow a horizontal transport of the photoactive substance 5. This happens, for example, as in FIG represented by a motorized linear drive 43, which has a receptacle 45 which couples the pressure element 39 to the linear axis 43, for example via a magnetic coupling 47, the control being effected by the control unit 19. The pressure element 39 may be inside the chamber 41 or also be guided outside and adjusted in height (see also Fig. 6] in order to influence the geometric elevation 15 of the semipermeable layer 7, and at least one such pressure element 39 is preferably present. The pressure element 39 has an e.g. substantially rod-shaped having at least any rod-shaped cross-sectional geometry (e.g., round, rectangular, U-shaped, etc.). As a result, it is also possible to realize or enable different layer thicknesses and the subsequent conveying of new photoreactive substance 5 by adjusting the geometric elevation 15. In this case, the geometric elevation 15 is generated by direct or indirect contact with the semipermeable layer 7 on the pressure element 39; Preferably, an elastic intermediate layer 39 '(see Fig. 3a') can be arranged between the semipermeable layer 7 and the pressure element 39. The geometric elevation 15 is preferably formed by a multi-part construction of the pressure element 39 and by, for example, the position of a plurality of pressure elements (FIG. For example, two substantially rectangular, rod-shaped pressure elements may be positioned at a distance and angle from each other under the semipermeable layer 7, and the spacing of the pressure elements may influence the width of the geometric elevation 15 and the angle the height of the geometric elevation 15 results, for example, in a ramp-shaped geometric elevation Depending on the direction of movement, for example, the orientation of the geometric elevation can be adjusted by changing the angle of the pressure elements.
    FIGS. 3a to 3d show successive process steps of an exemplary embodiment variant which uses a pressure element 39 which is located below the semi-permeable layer 7, is movable relative thereto, and has a transport effect for the purpose of generating the geometric elevation 15 of the semipermeable layer 7 photoreactive substance 5 in the gap 20 under the body 3 allows. The semipermeable layer 7 is at least partially tensioned by the arrangement in the trough 13, and the pressure element 39 can support the tension of the semipermeable layer 7 by the geometric shape and height.
    As shown in FIG. 3b, the movement of the pressure element 39 or the movement of the geometric elevation 15 results in a transport effect at a substantially stationary intermediate phase 11. In FIG. 3c the transport process is already completed, the exposure process is initiated, and it is a new device layer 3i, as shown in Fig. 3d, formed. After the process phase shown in Fig. 3d, there is a lifting of the just-created component layer 3i with respect to the trough 13, and the entire process is run through again.
    Fig. 4 shows a modified embodiment of the variant shown in Fig. 3a and Fig. 3c, with no (additional) transparent bottom 23 below the semipermeable layer 7, thus allowing for easier phase 9 diffusion (e.g., air or oxygen) be, with simultaneous formation of the geometric increase 15 in the semipermeable layer 7 by the pressure element 39, which slides here in a guide not shown in detail over the partially open bottom (23 in Fig. 3d).
    Fig. 5 shows a further variant, wherein for example at the side surfaces of a lower chamber 41 openings 49 are located, through which the phase 9 can flow in and out (eg oxygen or air), the transparent bottom 23 does not have to be semipermeable and the pressure element 39 is guided within the chamber 41. In this case, the pressure element 39, for example, as shown in Fig. 3a are coupled by a magnetic coupling with the drive. In another embodiment, the drive may be by direct mechanical coupling of the pressure element 39, for example by slots in the bottom plate 23 (not shown), or by omitting the bottom plate 23 (see Fig. 6).
    As shown in FIG. 6, the tub 13, which is shown lifted there, can also be constructed in several parts and the pressure element 39 can already be part of the installation 1. The pressure element 39 can be adjusted in height, for example, by an additional drive 44, which is located in the machine room 37 and is coupled to a linear unit 43, for example. By placing the tub 13 on the support member 29, the semi-permeable layer 7 is deformed, and it comes to the formation of the geometric increase 15, approximately similar to Fig. 5th
    Another variant is shown in FIG. 7. Here, the transparent printing element 39 is coupled to the light source 25 in such a way that exposure can take place, for example, simultaneously with the movement of the printing element 39 and a continuous exposure occurs, whereby a Pre-running of the printing element 39 relative to the light source 25 is possible (so that the light source is not exposed through the printing element through, but parallel offset offset can illuminate). In this case, the information generated by the light source 25 cross-sectional information, for example, by a digital pixel-based mask or by a laser scanner (such as a Galvanoscanner, or a laser scanner with rotating polygon mirror wheel), according to the position and the travel speed of the pressure element 39 and the changed to corresponding cross-sectional information. Such simultaneous exposure methods are known per se by the term "scrolling." In this case, the controller 19 provides the corresponding information for exposure of the current section based on the entire known cross-sectional information and the position and the travel speed of the pressure element 39 with the The pressure element 39 is preferably made of a material which is at least partially transmissive to the radiation generated by the light source 25. Particularly preferably, the exposure can be positively influenced by the geometry of the pressure element 39.
    The invention is of course not limited to the illustrated and described embodiments, but rather includes variants, modifications and combinations that fall within the scope of the invention defined by the claims.
    权利要求:
    Claims (20)
    [1]
    claims:
    1. A plant for the continuous and / or non-continuous construction of a component, comprising: a trough (13) with an at least partially transparent bottom (23), an at least partially tensionable semipermeable layer (7], for receiving a photosensitive substance (5) a phase (9) disposed below the semipermeable layer (7) and capable of forming an intermediate layer (11) within the photosensitive substance (5); a light source (25) arranged below the tub bottom (23) for partial scanning Curing of the photoactive substance (5), as well as a building platform (31) arranged above the semipermeable layer (7) and raised and lowered relative thereto for receiving the component (3) or the individual component layers (3Q, characterized by at least one driver ( 15], eg in the form of a geometric elevation (15), which extends at least from the semipermeable layer (7) in the direction of the building platform (31) and relative to the trough bottom (23) b ewegbar, for a transport effect for Nachförderung the photo-reactive substance (5] by an induced flow into the gap (20] between the building platform (31] and the semipermeable layer (7].
    [2]
    2. Plant according to claim 1, characterized in that the semipermeable layer (7] by interaction with the underlying phase (9] forms an intermediate layer or phase (11) within the photo-reactive substance (5), wherein a multi-phase system is formed and the semipermeable layer (7) is at least partially tensioned.
    [3]
    3. Plant according to claim 1 or 2, characterized in that the geometric increase (15] by a pressure element (39) is formed.
    [4]
    4. Plant according to claim 1, characterized in that the phase (9], with any] aggregate state and density, at least partially translucent and is able to interact with the semipermeable layer (7] to an intermediate phase (11 ] to train.
    [5]
    5. Plant according to one of claims 2 to 4, characterized in that the intermediate layer or - phase (11] is movable relative to the component.
    [6]
    6. Installation according to one of claims 2 to 4, characterized in that the intermediate layer (11] is at least substantially stationary.
    [7]
    7. Plant according to one of claims 1 to 6, characterized in that the semipermeable layer for transport of the photo-reactive substance (5] is deflectable.
    [8]
    8. Installation according to one of claims 1 to 7, characterized in that the height and / or shape of the geometric increase (15] is adjustable / are.
    [9]
    9. Installation according to one of claims 1 to 8, characterized in that the driver (15] with the light source (25] is simultaneously movable.
    [10]
    10. Installation according to one of claims 1 to 9, characterized in that the driver (15], which is preferably made in one piece, is at least partially translucent.
    [11]
    11. Installation according to one of claims 1 to 10, characterized in that the driver (15] for transport of the photo-reactive substance (5) is rod-shaped.
    [12]
    12. Plant according to one of claims 1 to 11, characterized in that the semipermeable layer (7] is flexible, preferably formed by a film.
    [13]
    13. Installation according to one of claims 1 to 12, characterized in that the semipermeable layer (7] through the trough (13] is movable, preferably it is tensioned and fixable.
    [14]
    14. A method for building a component by means of a system according to one of claims 1 to 13, comprising the steps: a. Positioning of the building platform (31) at a predetermined distance from the semipermeable layer or layer (7) and to the intermediate layer (11) b) continuous production of the component by targeted exposure of the photoactive substance (5), and lifting of the building platform (31) c) optionally initiating a non-continuous process at least once and conveying new photosensitive substance (5) into the gap (20) by the transport effect of the semipermeable layer (7) from an exposure process and a movement of the build platform (31); d, if necessary, repeating the steps a] to c] to produce the component (3).
    [15]
    15. The method according to claim 14, characterized in that a multi-phase system is formed by forming an intermediate layer (11) according to an interaction of the semipermeable layer (7) with the underlying phase (9].
    [16]
    16. The method according to claim 14 or 15, characterized in that the phase (9) is gaseous.
    [17]
    17. The method according to claim 14 or 15, characterized in that the phase (9) is liquid.
    [18]
    18. The method according to any one of claims 14 to 17, characterized in that the intermediate layer (11] is adjusted relative to the component.
    [19]
    19. The method according to any one of claims 14 to 18, characterized in that the driver (15] and the light source (25] are simultaneously moved or adjusted.
    [20]
    20. The method according to any one of claims 14 to 19, characterized in that the semi-permeable layer (7] transversely through the trough (13] is moved.
    类似技术:
    公开号 | 公开日 | 专利标题
    AT518465B1|2017-11-15|Plant and method for generating a three-dimensional body
    DE60012667T2|2005-09-08|Apparatus for producing a three-dimensional laminated article of a light-curing liquid
    DE102012021284B4|2014-12-04|Apparatus and method for the layered production of components by means of photopolymerization
    EP2083992B1|2016-08-03|Continuous, generative method and apparatus for the production of a three-dimensional object
    EP1732746B1|2011-04-27|Process for producing a threedimensional object with improved separation of hardened material layers from a base plane
    EP2505341A1|2012-10-03|Method for layered construction of a moulded part from highly viscous photopolymerisable material
    EP2504154B1|2017-02-01|Method and device for producing three-dimensional models
    AT514493B1|2015-04-15|Plant for the layered construction of a body and tub therefor
    WO2015075094A1|2015-05-28|Device for processing photopolymerizable material for the layer-by-layer construction of a molding
    DE102010020416A1|2011-11-17|Construction space changing device and a device for producing a three-dimensional object with a construction space changing device
    DE102004022606A1|2005-12-15|Method for producing a three-dimensional object with improved separation of hardened material layers from a building level
    WO2002026478A1|2002-04-04|Interchangeable container
    EP2940526A1|2015-11-04|Method for embossing
    EP3277481B1|2022-03-09|Method and device for the layered construction of a shaped part
    DE102017213072A1|2018-03-08|Additive manufacturing process
    EP3290188A1|2018-03-07|Method for reinforcing a photopolymerizable diffuse reflective material
    EP0839673A1|1998-05-06|Process and apparatus for applying a decoration to an object
    AT517049A1|2016-10-15|Process for the layered construction of a shaped body
    WO2016049666A1|2016-04-07|System for the layered construction of a body and releasing device therefor
    EP3418033A1|2018-12-26|Method and device for lithography-based generative production of three-dimensional forms
    DE102007029726A1|2009-01-02|Device for producing and presenting liquid layers
    WO2007012429A1|2007-02-01|Method and apparatus for producing three-dimensional shaped bodies
    AT514496B1|2015-04-15|Plant for the layered construction of a body and Entformvorrichtung therefor
    EP3552059B1|2021-01-27|Method and device for the structured passivation of an endless strip
    EP3819100B1|2021-08-11|Method for the generative construction of shaped bodies by means of stereolithography
    同族专利:
    公开号 | 公开日
    BR112018069066A8|2019-09-10|
    KR102170376B1|2020-10-28|
    CN109219511B|2021-09-28|
    CA3017759A1|2017-09-28|
    RU2018136038A3|2020-04-13|
    EP3433087B1|2021-06-09|
    WO2017161398A1|2017-09-28|
    JP6710777B2|2020-06-17|
    BR112018069066A2|2019-01-29|
    US20190047213A1|2019-02-14|
    CA3017759C|2020-10-27|
    AU2017239144A1|2018-10-11|
    RU2759969C2|2021-11-19|
    JP2019509194A|2019-04-04|
    RU2018136038A|2020-04-13|
    US11179882B2|2021-11-23|
    EP3433087A1|2019-01-30|
    CN109219511A|2019-01-15|
    AT518465B1|2017-11-15|
    AU2017239144B2|2020-10-29|
    KR20190021199A|2019-03-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2505341A1|2011-03-29|2012-10-03|Ivoclar Vivadent AG|Method for layered construction of a moulded part from highly viscous photopolymerisable material|
    DE102013215040A1|2013-07-31|2015-02-05|Tangible Engineering Gmbh|Compact apparatus for producing a three-dimensional object by solidifying a photo-hardening material|
    US4996010A|1988-04-18|1991-02-26|3D Systems, Inc.|Methods and apparatus for production of three-dimensional objects by stereolithography|
    US5122441A|1990-10-29|1992-06-16|E. I. Du Pont De Nemours And Company|Method for fabricating an integral three-dimensional object from layers of a photoformable composition|
    DE69405451T2|1993-03-16|1998-03-12|Koninkl Philips Electronics Nv|Method and device for producing a structured relief image from cross-linked photoresist on a flat substrate surface|
    JP2001062926A|1999-08-26|2001-03-13|Teijin Seiki Co Ltd|Stereo lithography device and photo fabrication method|
    EP1880832A1|2006-07-18|2008-01-23|Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO|Method and system for layerwise production of a tangible object|
    US8326024B2|2009-04-14|2012-12-04|Global Filtration Systems|Method of reducing the force required to separate a solidified object from a substrate|
    EP2605898B1|2010-08-20|2020-09-30|Zydex Pty Ltd|Apparatus and method for making an object|
    MX352425B|2013-02-12|2017-11-23|Carbon3D Inc|Method and apparatus for three-dimensional fabrication with feed through carrier.|
    DE102013102377A1|2013-03-11|2014-09-11|Dreve Prodimed Gmbh|Method and device for the generative production of 3-dimensional objects on the basis of a multiphase system|
    EP2875934B1|2013-11-22|2017-04-05|Technische Universität Wien|Device for processing of photopolymerisable material for building up a moulded body in layers|
    EP3134250A1|2014-04-25|2017-03-01|CARBON3D, Inc.|Continuous three dimensional fabrication from immiscible liquids|
    US10201963B2|2014-08-18|2019-02-12|Formlabs, Inc.|Systems and methods for an improved peel operation during additive fabrication|EP3697593A4|2017-10-16|2021-07-07|Voxel8, Inc.|3d-printing using reactive precursors|
    US10710303B2|2017-12-07|2020-07-14|Formlabs, Inc.|Techniques for build platform part release in additive fabrication and related systems and methods|
    CN110856978A|2018-08-17|2020-03-03|苏州苏大维格科技集团股份有限公司|3D printing system and 3D printing method|
    US11104075B2|2018-11-01|2021-08-31|Stratasys, Inc.|System for window separation in an additive manufacturing process|
    WO2020093028A1|2018-11-01|2020-05-07|Origin Laboratories, Inc.|Method for build separation from a curing interface in an additive manufacturing process|
    WO2020223817A1|2019-05-08|2020-11-12|Forcast Research & Development Corp.|Improved stereolithography system|
    WO2021118699A1|2019-12-13|2021-06-17|Carbon, Inc.|Additive manufacturing from a velocity induced dead zone|
    CN111136912B|2020-01-02|2022-02-18|大族激光科技产业集团股份有限公司|3D printing quantitative feeding device, 3D printer and printing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50247/2016A|AT518465B1|2016-03-25|2016-03-25|Plant and method for generating a three-dimensional body|ATA50247/2016A| AT518465B1|2016-03-25|2016-03-25|Plant and method for generating a three-dimensional body|
    CA3017759A| CA3017759C|2016-03-25|2017-03-23|System and method for generating a three-dimensional body|
    RU2018136038A| RU2759969C2|2016-03-25|2017-03-23|System and method for forming three-dimensional body|
    US16/087,593| US11179882B2|2016-03-25|2017-03-23|System and method for generating a three-dimensional body|
    JP2018550457A| JP6710777B2|2016-03-25|2017-03-23|System and method for generating a three-dimensional object|
    KR1020187030326A| KR102170376B1|2016-03-25|2017-03-23|3D object creation system and method|
    BR112018069066A| BR112018069066A8|2016-03-25|2017-03-23|system for building a component containing a tub|
    AU2017239144A| AU2017239144B2|2016-03-25|2017-03-23|System and method for generating a three-dimensional body|
    CN201780019390.9A| CN109219511B|2016-03-25|2017-03-23|System and method for generating a three-dimensional volume|
    PCT/AT2017/060073| WO2017161398A1|2016-03-25|2017-03-23|System and method for generating a three-dimensional body|
    EP17716097.5A| EP3433087B1|2016-03-25|2017-03-23|Apparatus for manufacturing a three-dimensional body|
    [返回顶部]