EP3172036A1 - Procédé de formation d'un objet à forme stable par une solidification sélective, par endroits, d'une masse non à forme stable - Google Patents

Procédé de formation d'un objet à forme stable par une solidification sélective, par endroits, d'une masse non à forme stable

Info

Publication number
EP3172036A1
EP3172036A1 EP15739578.1A EP15739578A EP3172036A1 EP 3172036 A1 EP3172036 A1 EP 3172036A1 EP 15739578 A EP15739578 A EP 15739578A EP 3172036 A1 EP3172036 A1 EP 3172036A1
Authority
EP
European Patent Office
Prior art keywords
base body
holding device
housing
mass
trough
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15739578.1A
Other languages
German (de)
English (en)
Inventor
Klaus Stadlmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Way To Production GmbH
Original Assignee
Way To Production GmbH
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 Way To Production GmbH filed Critical Way To Production GmbH
Priority to EP17178750.0A priority Critical patent/EP3246149B1/fr
Publication of EP3172036A1 publication Critical patent/EP3172036A1/fr
Withdrawn legal-status Critical Current

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
    • B29C64/124—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
    • 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
    • B29C64/171—Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects
    • 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
    • B29C64/10—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
    • 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
    • B29C64/25—Housings, e.g. machine housings
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058—Liquid or visquous

Definitions

  • the invention relates to a system for forming, in particular for layer-wise forming one or more dimensionally stable objects by selective areawise solidification of a non-dimensionally stable mass, in particular a photocurable liquid.
  • the invention also relates to a system and a tub for
  • a powdery or liquid substance is selectively cured by the action of light or heat radiation, thereby layered to form a solid body.
  • a powdery or liquid substance is selectively cured by the action of light or heat radiation, thereby layered to form a solid body.
  • Photopolymers are formed into a body layer by layer by selective curing, layer by layer.
  • the curing takes place according to the prior art in one
  • a disadvantage of conventional constructions is that the size of the body to be formed is limited by the free size inside the housing.
  • Another disadvantage of conventional 3D printers in which a liquid is cured by light radiation is that in a working process only a single body can be formed from a single liquid.
  • the object of the invention is now, a system, a device and / or
  • any three-dimensional bodies of almost any size can be formed or expanded.
  • flexibility also means that multi-part bodies or bodies can be formed from two or more different materials or masses.
  • the invention also makes it possible to flexibly press on or attach an object to a selectable base body, it being possible to use a plurality of different masses, wherein optionally a body or the constructed object is accessible from the outside or at least partially disposed outside the housing, and still preferably a
  • the invention relates to a system for forming one or more dimensionally stable objects by selective areawise solidification of a non-dimensionally stable mass, such as in particular a photocurable liquid, comprising in particular a base body, which is arranged in particular stationary; a tray connectable or connected to the body for receiving the mass; one or more controllable radiation source (s) for emitting radiation that is used for Solidification of the mass is suitable and which is in particular designed as a light source; a base body on which the object to be formed is buildable or constructed, a holding device for receiving or holding the base body; one
  • a controllable radiation source for emitting radiation that is used for Solidification of the mass is suitable and which is in particular designed as a light source
  • a base body on which the object to be formed is buildable or constructed, a holding device for receiving or holding the base body;
  • Housing which optionally surrounds the tub and preferably also the radiation source; and / or a movement device, which is connected or coupled to the base body and the holding device, wherein the movement device comprises a drive, so that the holding device is movable by actuation of the drive relative to the base body, wherein the housing is formed in several parts, wherein a first housing part is connected to the base body and a second housing part is connected to the holding device, so that in relative movement of the
  • Holding device relative to the base body, a relative movement between the first housing part and the second housing part is effected, and / or wherein the held or received in the holding device base body extends to the outside and / or is accessible from the outside.
  • the trough is open at the top, that the trough a permeable to the radiation of the radiation source ground,
  • the mass is arranged or can be arranged in the trough, that the base body held or arranged in the holding device for forming one or more dimensionally stable objects is immersed in the mass from above or applied to the mass Radiation source (s) disposed below the tub and directed through the bottom of the tub toward base body or are, or that the radiation of the
  • Radiation source (s) from below the tub and through the bottom of the tub
  • Direction base body is or are, and / or that for forming one or more dimensionally stable objects between the bottom of the tub and the
  • Base body provided mass by selective areawise irradiation by the radiation source (s) is solidifiable or solidified.
  • the holding device can be brought by actuation of the movement device from a first position to a second position, wherein the distance covered thereby
  • the holding device can be brought by actuation of the movement device from a first position to a second position, and that the holding device can be brought by operating the movement device in N between the first position and the second position lying intermediate positions, so that the object formed several interconnected layers, in particular N + 2 interconnected layers.
  • N intermediate positions can be brought, wherein the thereby covered path of the holding device corresponds approximately to the height of the constructed object, and that overlap the first housing part and the second housing part in the first position by an overlapping distance, wherein the overlap distance is greater than the covered Way of the holding device, so that the first housing part and the second housing part overlap each other in the second position, wherein the housing parts preferably overlap each other over their entire circumference.
  • the housing is formed schachteiförmig, wherein the one housing part is formed larger than the other housing part, so that the two housing parts are plugged into each other and together in the first position and in the second position at least the tub and preferably also the
  • the base body is a slide on which the object is grown, that the base body itself is an object constructed from a mass or that the base body is a part of the object or a part of the product made by building an object.
  • the housing and in particular the second housing part has a closable housing opening, wherein the housing opening is arranged in the region of the holding device or is formed by the holding device, and that the base body projects through the housing opening into the housing.
  • the housing and in particular the second housing part has a closable housing opening and that the
  • Housing opening can be closed or closed by the base body, so that in particular a substantially closed housing is formed.
  • the housing opening is provided in the upper part of the second housing part, and that the base body projects from above into the housing.
  • the housing is outboard and in particular freely accessible from the outside.
  • first housing part and the base body are integrally connected to each other or that the first housing part as
  • independent body is connected to the body.
  • the base body is arranged removable from the outside and to the outside or that the base body is removably connected to the holding device from the outside and to the outside or connectable.
  • the movement device a
  • Guide device or a plurality of guide devices comprises, via which the movement of the holding device and the second housing part relative to the
  • Main body out and in particular is parallel led.
  • the trough comprises one or more separating web (s), so that two or more laterally divided sub-troughs are formed.
  • different masses are arranged in at least two partial tubs, wherein the different masses differ for example by different compositions, different colors, different fillers, different additives and / or different viscosity.
  • the or at least one radiation source as a projector, in particular as a DLP projector, as a DMD projector or as an LCD projector, as a semiconductor-based light source such as in particular as a laser diode and / or image display surface such as in particular as an LED or OLED display
  • the radiation source can be moved and in particular driven in a plane parallel to the layer to be built up of the object, so that several subregions of the layer arranged next to one another can be solidified one after another and connected to one another.
  • a plurality of radiation sources are provided, and that optionally one or more radiation sources in a plane parallel to the layer of the object to be built movable and in particular driven is or are.
  • the invention relates to a system for forming one or more dimensionally stable objects by selective areawise solidification of a non
  • dimensionally stable mass such as in particular a photocurable liquid, comprising a base body, which is arranged in particular stationary; a tray connectable or connected to the body for receiving the mass; one or more controllable radiation source (s) for emitting a radiation which is suitable for solidification of the mass and which is designed, in particular, as a light source; one
  • Base body on which the object to be formed is buildable or constructed, a holding device for receiving or holding the base body; a housing surrounding at least the well, and preferably also the radiation source; a
  • Moving device connected or coupled to the main body and the holding device, wherein the moving device comprises a drive, so that the holding device is movable relative to the base body by actuation of the drive, wherein the base body is part of a punch, and that the object formed forms at least part of the punch surface.
  • the base body is a part of a stamp, and that the formed object forms at least a part of the stamp surface.
  • the base body is a part of a stamp, that the object forms at least a part of the stamp surface, that the stamp includes a punch handle and a stamp surface, and that the formed stamp surface comprises relief-like elevations and depressions, their shape and course through a Stamp ink is stampable on a substrate.
  • the punch handle is a part of the base body, or that the punch handle and the punch surface are parts of the formed object, wherein preferably the stamp surface and the punch handle are formed of different masses or.
  • a handling device which comprises at least one movable arm, that the arm of the handling device is coupled or coupled to the base body, so that by movement of the arm of the handling device and the base body is movable.
  • the arm relative to the base body has at least one preferably two driven degrees of freedom, so that the base body relative to the holding device is movable, wherein the movement of a
  • Rotary movement about a vertical axis a translational lifting movement for lifting the base body from the holding device, a translational
  • independent module is that is at least partially position-centered over one or more centering with respect to the main body, the base body or the holding device.
  • a divider is provided in the trough, so that at least two sub-troughs are formed by the divider,
  • separating webs are provided in the trough, so that at least two or more sub-troughs are formed by the separating webs.
  • a first mass is provided in a first part-well, that a second mass is provided in a second part-well, and that the first mass is formed from a material whose contents are at least partially of the contents or their concentrations of the second Differentiate mass.
  • the sub-tubs are laterally separated from each other by one or more dividers, so that an automatic mixing of a first mass, which is provided in the first part of the tub and a second mass, which is provided in a second part of the tub is prevented.
  • the one or more partitions are integrally connected to the tub, or that the one or more partitions are positively or materially connected to the tub or are.
  • the trough and the partitions are formed of an elastic material, wherein the elastic material contains, for example, silicone and in particular is a silicone mixture.
  • connecting elements are provided for connecting the tub to the base body.
  • the connecting elements comprise exemptions, wherein these exemptions are in particular adapted and / or suitable to be connected to elements of the base body, wherein the elements of the base body, which engage in the connecting elements of the trough, are optionally arranged movable so a tensioning of the tub, a buckling of the tub, a displacement of the tub and / or a relaxation of the tub on movement of the elements of the body can be done.
  • the connecting elements have magnetic or magnetizable elements, wherein these elements are in particular adapted to enable a magnetic connection of the trough to the main body.
  • the exemptions have undercuts, which in particular run substantially horizontally in the tub material, so that locking of the tub relative to the main body can take place via hook elements.
  • the second housing part is connected to the holding device, so that the second housing part is a part of the holding device, and that the base body is held by the second housing part and is movable.
  • the holding device is a frame-shaped
  • Holding device and / or the housing is held.
  • the system according to the invention preferably comprises several components. Through the synergetic interaction of two or more of these components, the object of the invention is achieved.
  • the system according to the invention preferably comprises a main body.
  • the main body is in particular arranged stationary and, for example, can be set down or arranged on a solid base, such as a floor or a table.
  • a solid base such as a floor or a table.
  • Basic body controls can be provided. These controls include, for example, switches which are adapted to influence the function of the system according to the invention. In particular, these switches may be on / off switches or function switches for starting the formation of the object or for other functions.
  • a display device such as in particular a graphic display can be provided on the main body. Information about the manufacturing process can be displayed on this display. For example, this display device can represent information about the object, production progress or other parameters.
  • the display device comprises a touch-sensitive display device such as in particular a touch screen.
  • Moving device a part of the housing, a radiation source, a
  • Handling device or other components provided on the body or be connected to the body are provided on the body or be connected to the body.
  • the system according to the invention preferably comprises a trough.
  • This tub is adapted and / or adapted to receive the mass from which the object to be formed is formed.
  • the trough may be designed in particular according to the Austrian patent applications AT50390 / 2013 and AT50391 / 2013.
  • the trough has a bottom which is responsible for the radiation of the radiation source
  • the bottom of the tub is translucent.
  • the Bottom of the tub transparent.
  • at least a part of the tub and in particular the bottom of the tub are formed from an elastic or deformable material, so that the bottom is deformable by mechanical action of other elements. By this deformation, the detachability of the object from the bottom of the tub can be improved.
  • the side walls of the tub are formed of an elastic material.
  • the tub is made in one piece of an elastic,
  • the trough comprises one or more dividers, so that two or more sub-troughs are formed.
  • a single divider can be
  • Dividers present so that a plurality of laterally separated sub-tubs is formed. In the sub-pans different masses or the same mass can be arranged or become.
  • the dividers may be integrally connected to the tub or be part of the tub. Optionally, the dividers are subsequently inserted webs.
  • the dividers are subsequently inserted webs that are or are positively or materially connected to the tub, and in particular glued or welded to the tub.
  • the base body may be removed outwardly and outwardly.
  • the base body may be removed outwardly and outwardly.
  • the base body may be removed outwardly and outwardly.
  • the base body may be removed outwardly and outwardly.
  • the base body may extends in all embodiments of Base body to the outside.
  • Base body to be a part of the object or a part of the product to be formed.
  • a heatable or heated space can be provided in all embodiments.
  • Components of the system can be heated or heated.
  • a heater for example, spotlights, in particular radiant heater, IR lamps or inductive
  • Heating device etc. may be provided.
  • the base body may be heated or. If necessary, these emitters are inside the
  • the radiators are directed from above to the mass.
  • a radiator or multiple radiators are connected to the holding device, so that they can preferably be moved with the holding device.
  • the heating device is also a heating element that releases heat to the housing interior via artificial or natural convection.
  • the tub is made by an injection molding process.
  • the tub and optionally the separating elements and the sub-tubs are manufactured as a single tub body, which is formed in particular by an injection molding process and / or an embossing process.
  • the tub is made of a
  • this material is or contains silicone.
  • the movement device is designed such that an im
  • the elements of the movement device are rod-shaped and narrow, so that free surfaces are provided between them, whereby the handling of the internal elements of the device is facilitated.
  • the second housing part be removed, for example, to watch the construction progress or to refill a mass in the tub.
  • Fig. 1 a, 1 b and 1 c show oblique views of a system according to the invention from the outside in different positions.
  • Fig. 2 shows an oblique view of
  • FIG. 4 shows several views of possible embodiments of a tub and a base body.
  • Fig. 5 shows details of a tub.
  • Fig. 6 shows a possible embodiment of a base body and in particular of a slide.
  • Fig. 7 shows several views of one
  • inventive system comprising a handling device.
  • 8 shows a further embodiment of a base body according to the invention or a
  • Fig. 1 a, 1 b and 1 c show an embodiment of an inventive
  • the housing 8 is designed in several parts.
  • the housing 8 comprises a first housing part 12 and a second housing part 13.
  • a display device 24 and / or one or more control elements 25 may be provided on the housing 8 and / or on the main body 3, as shown in this embodiment.
  • the display device 24 may be formed as a conventional display device such as an LCD display device.
  • the display device is also a
  • touch-sensitive display device and in particular a touch screen.
  • the display device 24 as a touch screen, the display device 24 itself is also a control element 25.
  • the display device 24 is also a control element 25.
  • the main body 3 is preferably arranged stationary and can be parked, for example, on a solid surface such as a table or a floor.
  • the main body 3 is surrounded by a housing 8 at least partially, preferably completely.
  • openings 8 are provided in the housing 8, for example for the inlet and outlet of cooling air or for plug connections.
  • the main body 3 is optionally surrounded by a first housing part 12 or integrally connected to a first housing part 12.
  • a second housing part 13 is provided. This second housing part 13 is preferably designed such that it surrounds the housing 8 completing together with the first housing part 12 and thus forms a substantially closed housing 8.
  • the second housing part 13 is preferably designed such that it surrounds the housing 8 completing together with the first housing part 12 and thus forms a substantially closed housing 8.
  • Housing part 13 preferably has one or more housing openings 20.
  • the housing openings 20 or the housing opening 20 are designed to be closed.
  • the closing of the housing opening 20 takes place, for example, by a cover which completes the shape of the housing 8 or the housing 8.
  • a base body 6 is provided. This base body 6 is used in particular for the attachment or construction of the object 1 to be formed. Preferably, the base body 6 is accessible from outside the housing 8, removable or removable. In particular, the base body 6 extends from the outside into the housing 8. In this case, as in the present embodiment, differently sized housing openings 20
  • the base body 6 is preferably held by a holding device 7 which is not visible in this illustration.
  • the holding device 7 is according to a preferred embodiment of a moving device 10 - also not visible - formed relative to the base body 3 movable.
  • Movement device 10 the system according to the invention from a first position 15, as shown for example in Fig. 1 b, in a second position 16 as shown for example in Fig. 1 a, brought. Between the first position 15 and the second position 16, the holding device 7 sets a path 17 back. The distance traveled in the formation of an object 17 corresponds approximately to the height of the formed object.
  • Housing part 13 is coupled or connected to the holding device 7. Upon movement of the holding device 7 via the movement device 10 is also the second
  • the housing 8 moved.
  • the housing 8 is thereby extendable or telescopic extendable trained.
  • the housing 8 is formed schachteiförmig.
  • the first housing part 12 has a slightly smaller external dimension than the internal dimension of the second housing part 13.
  • the second housing part 13 can be slipped or pushed in a shingled manner over parts of the first housing part 12.
  • the overlap distance 19 is in particular that distance by which the two housing parts overlap, for example, the distance between the lower edge of the second housing part 13 to the upper edge of the first housing part 12.
  • the overlapping distance runs in particular along the direction of movement of the relative movement of the two housing parts 12, 13.
  • the overlapping distance 19 of the first position 15 is greater than that in the present embodiment
  • the overlap distance 19 of the housing in the first position 15 is greater than the distance traveled 17 for the formation of the object.
  • An advantage of the extensible housing parts is that the system according to the invention can be moved together to a small pack size. As a result, in contrast to rigid housings, the size of the system according to the invention can be reduced. Another advantage of the inventive design of
  • housing and the holding device is that the base body 6 may extend to the outside or that the base body 6 from outside Shen directly accessible or can be removed.
  • the object 1 to be formed and / or the base body 6 can extend outward regardless of the space within the housing 8.
  • objects 1 can be formed by their
  • base bodies 6 can also be used, to which the object 1 is grown. These base body 6 can also largely independent of the
  • the movement device 10 is in particular configured to execute a translatory movement of the holding device 7 relative to the base body 3.
  • this translational movement is a parallel displacement of the holding device 7 relative to the base body 3.
  • the direction of movement is substantially perpendicular or perpendicular to the environment.
  • the two housing parts are preferably designed schachteiförmig, the second housing part 13 is optionally designed dome-shaped and is open at the bottom, so that the second housing part 13 may extend around the base body 3 and in particular around the first housing part 12 around.
  • the second housing part 13 has a peripheral end edge, which extends for example substantially horizontally in the lower region.
  • FIG. 1 c shows a system according to the invention with the base body 6 lifted off.
  • a trough 9 is provided below the housing opening 20, below the housing opening 20, a trough 9 is provided.
  • a mass 2 In the first position 15, at least a portion of the base body 6 is immersed in the mass 2 or applied to the mass 2.
  • the object 1 By selective solidification of the mass 2 in the region of the base body 6, the object 1 can be grown on the base body 6.
  • the base body 6 may, as in the present embodiment, be designed as a pure slide which is not part of the object or product to be formed. In this case, the object 1 to be formed is removed after the formation of the base body 6 formed as a slide.
  • the base body 6 is itself an object 1 formed by the system according to the invention.
  • the base body 6 is a part of a product, wherein the object 1 is grown on the base body 6.
  • the base body 6 can, as can be seen in the present embodiment, extend to outside the housing or to the outside and is therefore limited in its size and shape only slightly.
  • Fig. 2 shows an oblique view of a system according to the invention, wherein parts of the housing 8 are hidden or removed. In particular, the second is
  • Housing part 13 removably connected or coupled to the holding device, so that by simply removing the second housing part 13, for example by lifting upwards, internal components of the system are accessible.
  • the first housing part 12 surrounds or optionally forms the main body 3 of the system. Furthermore, a holding device 7 is provided.
  • the holding device 7 is connected or coupled to the base body 3 via a movement device 10.
  • the movement device 10 in the present embodiment comprises a plurality of elements via which the mobility of the holding device 7 relative to the
  • trough 9 In the trough 9 is preferably in its ready position a mass 2 or more masses. 2
  • Figures 3a, 3b and 3c show a system according to the invention in different positions, wherein in the views of Figures 3a, 3b, 3c, the base body and the housing are hidden. Other components, such as the power supply or the display device 24 are hidden.
  • FIGS. 3 a, 3 b, 3 c show parts of the system according to the invention, in particular a holding device 7 in a first position 15 or a second position 16, a radiation source 4, a movement device 10, drives 1 1,
  • FIG. 3 a shows the components in a first position 15, wherein the base body 6 is held by the holding device 7.
  • the base body 6 optionally extends outward, as in the previous embodiments.
  • the base body 6 is designed as a slide in the present embodiment. He preferably has an outwardly facing handle. With this handle, the slide can be easily removed and removed to the outside.
  • a base body 6 designed as a slide
  • a base body which is a part of the object to be formed or a part of the product to be formed.
  • a drive 10 is provided.
  • two drives 10 are provided in this embodiment, which preferably spaced apart on the one hand on the main body and on the other hand on the holding device 7 attack.
  • the drives 1 1 are designed as linear drives. By actuating the drive or drives 1 1, a relative movement of the holding device 7 relative to the base body is effected.
  • the two drives 1 1 are arranged on opposite sides of the holding device 7 and the base body 3.
  • the movement device 10 preferably comprises guide devices 21.
  • These guide devices 21 include, for example, elongated
  • a plurality of guide devices 21 are provided at a distance from each other. The spacing from each other in particular causes a tilting of the guide devices is avoided.
  • the guide devices 21 are provided on opposite sides of the holding device 7 and the base body 3.
  • three or four guide devices are provided on the outer side edges or corners of the holding device 7 or of the main body 3.
  • the holding device 7 comprises a frame-shaped component 38, in particular a frame 38 which has an exemption 39 through which the trough 9 is preferably horizontally guided and connectable to the base body 3.
  • a trough 9 filled with a liquid mass 2 can be introduced from above into the housing, without the liquid being released.
  • the second housing part 13 of the frame-shaped component held and optionally moved, and that the base body 6 of the
  • Holding device 7 and / or the housing 8 is held.
  • the device or the holding device 7 can be brought from a first position 15 to a second position 16.
  • the holding device 7 is moved relative to the base body 3.
  • the holding device 7 is moved relative to the main body by a distance traveled 17.
  • the holding device 7 is guided parallel to the base body 3.
  • the second housing part is also displaced by the same path 17.
  • the embodiment according to FIG. 3 comprises a radiation source 4.
  • This radiation source 4 is designed, for example, as a projector.
  • the radiation source 4 is preferably arranged to be movable or movable via one or more radiation source drives 26.
  • the movement of the radiation source takes place in particular in a plane parallel to the layer of an object 1 to be formed. Preferably, this is a horizontal plane.
  • Radiation source drives provided over the one radiation source in two
  • Directions can be moved. These two directions are in particular normal to one another, so that an x-y displacement of the radiation source 4 in a plane parallel to the object layer is made possible.
  • the main direction of the radiation of the radiation source 4 impinging on the mass preferably runs perpendicularly, in particular perpendicularly from the radiation source upwards to mass 2.
  • the main direction of the radiation impinging on the mass is deflected via an optical element such as, for example, a mirror.
  • the main direction of the radiation impinging on the mass of the radiation source 4 is partly perpendicular, and in particular the main direction of the radiation is perpendicular and preferably from below to the mass.
  • the trough 9 is preferably connected or connectable to the main body 1.
  • the holding device 7 By actuating the drive 1 1, the holding device 7 is also moved relative to the trough 9.
  • Fig. 3b shows the same device as Fig. 3a, wherein in Fig. 3b, the base body 6 is hidden or removed. The illustrated parts of the invention
  • Fig. 3c shows parts of the device according to the invention in the second position 16. In this position, the holding device 7 relative to the base body 3 and relative to the first position 15 is displaced by a distance traveled 17.
  • Displacement takes place via the actuation of the / or the drives 1 1.
  • the holding device can be stopped in a number N intermediate positions lying between the first and the second position.
  • Radiation source 4 a layered structure of an object 1 can take place.
  • the radiation source preferably emits the radiation in the intermediate positions in which the holding device is in the rest position (s).
  • the radiation 5 is also shown schematically, as it can be provided in all positions and embodiments.
  • the bottom 14 of the tub can be arranged in all embodiments at this point.
  • FIG. 4a shows a trough 9 according to the invention, which is designed substantially as a continuous trough.
  • a trough 9 according to the invention, which is designed substantially as a continuous trough.
  • Connecting elements 27 are provided. Furthermore, the trough preferably comprises one or more handles 28.
  • the connecting elements 27 of the trough 9 are particularly suitable and adapted to be connected to the system according to the invention or to the base body.
  • the connecting elements 27 can
  • the connecting elements 27 comprise further elements, such as rigid plates or additional bodies, which are particularly suitable for improving the stability or the manageability of the trough.
  • Fig. 4b shows a trough 9, in which a separating web 22 is provided.
  • a lateral, horizontal separation is provided so that two different masses 2, one mass 2 in the first part trough and another mass 2 in the second part trough, are not automatically mixed with each other and / or separated from each other.
  • Fig. 4c shows a further embodiment of a trough 9, in which a plurality of separating webs 22 are provided.
  • a plurality of separating webs 22 are provided.
  • Embodiment eight sub-tubs 23 formed. It goes without saying that in all embodiments of the invention by suitable choice of the separating webs 22 any number of sub-tubs 23 can be formed.
  • the dividers 22 of all embodiments are formed as subsequently inserted dividers. These may for example be material or form-fitting connected to the trough 9 to form sub-troughs 23.
  • the dividers 22 are integrally connected to the trough 9 and in particular formed as a part of the trough.
  • the tub 9 is at least partially formed of an elastic material.
  • the dividers 22 may be formed in all embodiments of an elastic material.
  • any adhesive may be connected by the dividers 22 to the tub 1, preferably has a certain elasticity in order to ensure the elasticity of the entire tub and in particular the splices.
  • this base body 6 shows a possible embodiment of the base body 6.
  • this base body is adapted to cooperate with the trough 9 of FIG. 4c.
  • this base body 6 is basically also suitable for being used with the troughs 9 of FIGS. 4a and 4b.
  • the base body 6 shown in Fig. 4d has a plurality of extensions 29.
  • the extensions 29 preferably extend parallel to one another from a base plate of the Base body 6 to the outside. In the ready position, the base body is held by the holding device or applied to the holding device.
  • the extensions 29 protrude in this operational position towards the tub and in particular in or on the mass 2. Preferably, the extensions 29 are laterally released. this has
  • Embodiments of the base body direction mass may also be smooth or wedge-shaped.
  • the extensions 29 are arranged in groups. These groups of extensions 29 are preferably spaced apart from each other and in particular laterally spaced. The groups are preferably spaced apart from one another such that the separating webs 22 of the trough 9 can protrude into the free space between the groups.
  • eight different objects can be formed from possibly eight different masses.
  • several objects can be made of two different masses.
  • a handling device 30 is provided in particular according to FIG. 7, which allows a displacement of the base body 6 relative to the trough 9 or relative to the base body 3. This shift may vary depending on the design of the
  • the trough 9 comprises a plurality of separating webs 22, which are integrally connected to the main body of the trough 9.
  • the partitions 22 are part troughs 23, in this embodiment, in particular eight sub-troughs 23, are provided.
  • the different sub-wells 23 may optionally be arranged different masses 2 to form objects 1 of different masses 2 can.
  • the present embodiment of the trough 9 according to FIG. 5 comprises
  • connection elements 27 may be designed, for example, in several parts.
  • the connecting elements 27 comprise
  • Exemptions 31 are in particular set up and / or suitable to be connected to elements of the basic body. About the connecting elements 27, the connection of the tub over the happens
  • the connecting elements which are arranged on the base body, and which engage in the connecting elements 27 of the trough, movably arranged so that, if necessary, a tensioning of the tub, a buckling of the tub or a relaxation of the tub on movement of the connecting elements
  • Connecting elements of the body can be done.
  • the connecting elements 27 magnetic or
  • magnetizable elements 32 are in particular adapted to a simple connection of the tub to the base body
  • the tub can be connected for example by simply placing the top of the body. About magnetic forces then the tub can be held on the body.
  • the exemptions 31 preferably extend vertically from below into the side regions of the trough.
  • the trough 9 should be secured against lifting upwards. This is preferably done by magnetic forces, undercuts and / or
  • FIG. 6 shows a further possible embodiment of the base body 6.
  • the base body 6 in turn comprises extensions 29.
  • the extensions 29 are preferably directed downwards and more preferably in the direction of the mass 2 of the trough 9. In this
  • the base body 6 comprises a reservoir 33 for receiving a mass 2 or a substance for admixture in the mass 2.
  • a plurality of separate reservoirs may be provided.
  • a base body with a reservoir may optionally be provided in all embodiments.
  • the reservoir 33 is optionally connected via feed openings 34 with that area of the base body 6, in which the extensions 29 are arranged or in which the object 1 is formed. Via this additional reservoir 33 and in particular via the feed openings 34, a mass 2 or a substance from the back of the
  • Base body are directed into that region of the base body 6, in which the object is to be built or grown. This can be achieved, for example, that the spaces between the extensions 29 are filled with the mass 2 or at least partially filled. As a further consequence, the base body 6 or the projections 29 do not have to be immersed in the mass, but it is sufficient that they are applied to the mass. Thereby, the displacement of the mass 2 in the tub 9 can be further reduced.
  • the reservoir is designed such that the base body is hollow at its upper side or has a cavity.
  • an additive for the mass 2 may be provided in the reservoir.
  • This additive may for example be or contain a dye, in particular color pigments, one or more fillers and / or one or more additives.
  • a control or controllable valve may be provided in the feed openings 34 or in the feed opening 34. Control of the valve may control or regulate the supply of the substance or mass in the reservoir. For example, this substance can be introduced drop-shaped into the mass.
  • a spray head is provided so that the substance provided in the reservoir can be atomized onto the mass or applied to the object.
  • a movable element may be provided in the tub, which removes the mass located in the tub or pushed aside.
  • a further, second mass can be supplied via the feed opening or the feed openings, which optionally differs from the first mass.
  • the first mass is pushed into a region of the tub in which no structure of an object happens.
  • an object can be produced in a single tub or in a single part tub, which is formed from different masses.
  • a plurality of reservoirs are provided which contain a plurality of different additives or compounds.
  • different dyes can be arranged in several reservoirs.
  • each reservoir is connected via a feed opening to the interior and in particular to the tub, so that the substance can be introduced into the tub.
  • Embodiments per sub-tub provided at least one feed opening.
  • shut-off element is provided per feed opening or per sub-tray so that the individual sub-trays can be charged independently with one or more substances from the reservoir.
  • these shut-off elements are designed as a valve system. This valve system can be controlled, for example, via software. This embodiment can be combined in particular with all other embodiments.
  • Fig. 7, in particular Fig.7a and Fig.7b show a further embodiment of a system according to the invention. This includes in this embodiment
  • the handling device 30 is in particular adapted and / or suitable to move the base body 6 in a desired manner via a suitable control.
  • the handling device 30 as
  • Handling device 30 is particularly suitable for removing a base body 6 from the holding device and optionally store it at another location.
  • the handling device 30 is in this embodiment
  • the handling device 30 is adapted and / or adapted to apply a (single) base body 6 in different positions on or to the device according to the invention, or to connect the base body in different positions with the device.
  • the base body can be rotated and / or offset.
  • the handling device may be fixed or rigidly connected to the main body 3 of the system.
  • the handling device 30 is an independent module that can be placed next to the base body 3 or next to the housing 8 of the device or placed.
  • centering means are 37
  • centering means may for example be webs or recesses into which the handling device 30 or the base body 3 or the housing 8 can be used with a certain fit.
  • the base body 6 and the handling device 30 have a common base plate, via which the centering of the handling device 30 relative to the base body 6 takes place.
  • Fig. 7 shows a device according to the invention in two different positions.
  • the handling device comprises an arm 35, which is arranged to be movable.
  • the arm 35 is arranged movable relative to the base body 3, so that a base body 6 can be removed or moved.
  • control or regulation of the handling device 30 is connected to the control or regulation of the device for forming the object 1, connectable or formed as a single control or regulation.
  • Base body 3 and the handling device 30 made automatically.
  • the handling device 30 is designed as a changer system. This may optionally be part of the system according to the invention and / or with the System combined. Due to the accessibility of the base body from the outside, it is possible that the base body together with the object formed is automatically removed and, if appropriate, a new base body is supplied.
  • a mass 2 can be supplied or refilled by the handling device in all embodiments.
  • a mass reservoir may be provided with a dosing device which can be actuated by the handling device, wherein the dosing device optionally comprises a valve and / or a pump.
  • the system includes a magazine for receiving or holding a plurality of base bodies.
  • This magazine may optionally be integrated in the changer module or in the handling device.
  • the base body 6 comprises a plurality of extensions 29.
  • the extensions are suitable and / or adapted to grow an object 1, in particular from a plurality of layers 18, or to build it up.
  • a separating element 36 is provided in order to facilitate removal of the object 1 from the extensions 29 and from the base body 6. This separating element 36 is preferably arranged in the intermediate space between the extensions 29 before the structure of the object. Now, if the object 1 attached to the extensions and in particular to the projecting ends of the extensions 29, so is the separating element 36 between the object 1 and a base plate of the base body 6. In order to separate the object 1 of the base body 6, in further follow the separator 36 in
  • the separator 36 is formed as a lattice-shaped body.
  • This latticed body comprises a plate-shaped basic structure, in the grid-shaped exemptions are arranged.
  • the exemptions are arranged in particular as passage openings, which enforce the plate-shaped basic structure.
  • the exemptions of the separating element 36 have, in particular, the same shape or arrangement as the extensions 29 of the base body 6 used together with the separating element 36. As a result, the extensions 29 can be guided through the clearances in the separating element 36.
  • the separator is integrated as a perforated grid in the base body or applied to the base body.
  • the separating element may be connected by magnets or the like during the formation of the object with the base body. After the printing process, a flat pressure can be applied from the back of the object by peeling off the separating element or the perforated grid. As a result, the object or objects can be loosened more gently from the base body.
  • this allows an automated separation of the object from the base body. For example, this could automatically separate an object from the base body and
  • the handling device itself has a separating element, which is suitable by its geometry to intervene in openings of the base body to release the parts by surface pressure.
  • the system according to the invention preferably comprises a radiation source which, for example, can be embodied as follows:
  • the radiation source can be embodied in particular as a projector and / or beamer.
  • the radiation source used may be a DLP (Digital Light Processing) projector.
  • a radiation source about 600 to 6000 x 300 to 3000 pixels, preferably 1280x800 pixels.
  • two lenses can be used, for example, to produce a resolution of 50 ⁇ m and 65 ⁇ m.
  • the single field for example, at 50 ⁇ m 64x40mm large, at 65 ⁇ m 83.2x52mm large.
  • a total construction area of 64x120mm (50 ⁇ m) or 83,2x156mm (65 ⁇ m) can be achieved.
  • Radiation sources in particular two radiation sources according to the above-mentioned embodiment, the field is optionally at 50 ⁇ m 128x120mm large.
  • the LED used in the exemplified embodiment of the radiation source has, for example, a power of 1 W to 20W.
  • an exemplary composition may include or be a monomer composition of one or more different monomers.
  • the composition also comprises inorganic particles, metallic particles, ceramic particles, dyes, additives, fillers and / or dyes.
  • Exemplary compositions may be, for example, acrylates or methacrylates.
  • the composition is preferably solidifiable by radiation to a polymer. All usable materials preferably have in common that the non-rigid, in particular liquid or pasty starting material of the mass is enriched with a photoinitiator. This photoinitiator chemically converts the light impinging on it or the radiation of the radiation source impinging on it, whereby the polymerization and thus the solidification takes place or is excited.
  • the radiation source below the trough can preferably be moved horizontally in the XY direction. If necessary, in all
  • Laser diodes may be used in the radiation sources in all embodiments. These can, for example, pulsed or continuously emit.
  • the pulse lengths can be very short, eg in the picosecond range or in the femtosecond range.
  • the wavelengths of the emitted radiation from the infrared range to range to the ultraviolet range in particular a narrow frequency spectrum such as exclusively UV radiation or IR radiation or a broad frequency spectrum up to actinic radiation include or be.
  • multiple optics with dedicated resolutions can be used in all embodiments for image projection.
  • a variable lens in which the projection surface is infinitely or in stages adjustable, are used.
  • one or more DMDs or directly emitting display solutions, e.g. LED or OLED displays are used.
  • the system according to the invention preferably comprises several components. These components may be, for example, the trough 9, the housing 8, the base body 6, the movement device 10, the display device 24, the radiation source 4, the radiation source drive 26, the handling device 30, and / or the object 1. Several of these components together effect a synergistic effect and in particular form a system according to the invention.
  • all of said components are provided in the system according to the invention.
  • the individual components can be embodied in different embodiments.
  • one or more radiation sources may be provided.
  • the trough may be multiple troughs or a single trough.
  • the trough may be multiple troughs or a single trough.
  • Base body is an independent body such as in particular a slide. According to a modified embodiment, the base body may be an object made on or through the system.
  • the object 1 is a part of a stamp or a stamp.
  • a stamp is an object which has a stamp surface, which is preferably provided with a relief-like structure. By wetting the stamp surface with ink and impressions on a substrate, the relief-like mold can be pressed onto a substrate.
  • the stamp plate which carries the stamp surface, are formed by selective areawise solidification of a non-dimensionally stable mass.
  • the stamp surface is formed by the constructed object.
  • the base body is a part of the stamp and thus a part of the finished product.
  • a stamp handle can be connected as a base body with the holding device or held by the holding device.
  • the stamp surface and optionally the stamp plate are constructed or formed by the system according to the invention. The trained as a stamp handle
  • Base body can be applied or attached from the outside to the housing or to the holding device of the system according to the invention, and in particular extend outward. After finished formed stamp surface of the punch handle, which corresponds to the base body, are easily lifted to the outside.
  • the base body in this embodiment is a part of the finished product, in particular a part of the finished stamp.
  • the base body or designed as a stamp handle base body is held by the holding device.
  • the punch handle can be constructed by the system of the invention or be.
  • a first mass may be provided which has a substantially rigid or hard consistency upon solidification.
  • a stamp grip can be built in layers.
  • the formed stamp handle may be immersed in a second mass or applied to a second mass. After solidification, this second mass has a dimensionally stable but elastic, for example rubber-like consistency, as is known from stamping surfaces.
  • Object can be a stamp of different materials through the
  • inventive system can be prepared essentially in one operation.
  • the handling device is adapted to make a change of masses, in particular to move the base body from one mass to another mass.
  • the system according to the invention becomes a plate-shaped

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  • Materials Engineering (AREA)
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Abstract

L'invention concerne un système pour former un ou plusieurs objets à forme stable (1) par une solidification sélective, par endroits, d'une masse non à forme stable (2), comprenant un corps de base (3), lequel est notamment disposé fixe en position ; un bac (9) apte à être lié ou lié au corps de base (3) destiné à recevoir la masse (2) ; une ou plusieurs sources de rayonnement commandables (4) destinées à fournir un rayonnement (5), qui sont appropriées pour solidifier la masse (2) et qui sont formées notamment en tant que sources lumineuses ; un corps de base (6), sur lequel l'objet (1) à former peut être réalisé ou est réalisé ; un dispositif de maintien (7) destiné à recevoir ou à maintenir le corps de base (6) ; un boîtier (8), qui entoure au moins le bac (9) et de préférence également la source de rayonnement (4) ; un dispositif de déplacement (10), qui est lié ou couplé avec le corps de base (3) et avec le dispositif de maintien (7), le dispositif de déplacement (10) comprenant un dispositif d'entraînement (11), de telle sorte que le dispositif de maintien (7) peut être déplacé par rapport au corps de base (3) par actionnement du dispositif d'entraînement (11).
EP15739578.1A 2014-07-22 2015-07-20 Procédé de formation d'un objet à forme stable par une solidification sélective, par endroits, d'une masse non à forme stable Withdrawn EP3172036A1 (fr)

Priority Applications (1)

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EP17178750.0A EP3246149B1 (fr) 2014-07-22 2015-07-20 Système de formation d'un objet de forme stable par consolidation partielle, sélective d'une substance de forme non stable

Applications Claiming Priority (2)

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ATA580/2014A AT516324B1 (de) 2014-07-22 2014-07-22 System zum Bilden eines formstabilen Objektes durch selektives, bereichsweises Verfestigen einer nicht formstabilen Masse
PCT/EP2015/066521 WO2016012389A1 (fr) 2014-07-22 2015-07-20 Procédé de formation d'un objet à forme stable par une solidification sélective, par endroits, d'une masse non à forme stable

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EP17178750.0A Active EP3246149B1 (fr) 2014-07-22 2015-07-20 Système de formation d'un objet de forme stable par consolidation partielle, sélective d'une substance de forme non stable

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US (1) US20170197361A1 (fr)
EP (2) EP3172036A1 (fr)
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Publication number Publication date
AT516324B1 (de) 2016-06-15
US20170197361A1 (en) 2017-07-13
EP3246149A1 (fr) 2017-11-22
EP3246149B1 (fr) 2018-12-19
WO2016012389A1 (fr) 2016-01-28
CA2956039A1 (fr) 2016-01-28
AT516324A1 (de) 2016-04-15

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