WO2020030563A1 - Système destiné à la fabrication d'un objet en 3d - Google Patents

Système destiné à la fabrication d'un objet en 3d Download PDF

Info

Publication number
WO2020030563A1
WO2020030563A1 PCT/EP2019/070959 EP2019070959W WO2020030563A1 WO 2020030563 A1 WO2020030563 A1 WO 2020030563A1 EP 2019070959 W EP2019070959 W EP 2019070959W WO 2020030563 A1 WO2020030563 A1 WO 2020030563A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
container wall
wall
designed
container bottom
Prior art date
Application number
PCT/EP2019/070959
Other languages
German (de)
English (en)
Inventor
Andreas SCHULTHEISS
Andreas Geitner
Original Assignee
Rapid Shape 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 Rapid Shape Gmbh filed Critical Rapid Shape Gmbh
Publication of WO2020030563A1 publication Critical patent/WO2020030563A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • B29C64/259—Interchangeable
    • 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
    • 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

Definitions

  • the present invention relates to a system for producing a three-dimensional object by solidifying, in particular in layers or continuously, a material which can be solidified under the action of radiation, which system comprises a container for receiving the solidifiable material, in which container the solidifiable material is exposed to it of radiation for producing the three-dimensional object is solidified in layers or continuously, the container comprising a container base and a peripheral container wall protruding from the container base, the container base and the container wall delimiting a material receiving space for receiving the solidifiable material.
  • Systems of the type described at the outset are known, in particular, in the form of so-called 3D printers, with which three-dimensional objects can be produced by layer-by-layer solidification of a polymerizable resin solution, for example by means of electromagnetic radiation, in particular in the ultraviolet spectral range.
  • a container for the solidifiable material in the form of a trough which has a glass base which is transparent to the radiation for solidifying the solidifiable material.
  • the container wall is also made of glass.
  • this object is achieved in that the container bottom is made of a different material than the container wall and that the container bottom is designed to be elastic and / or flexible and is connected to the container wall without tension or tension is.
  • the proposed development of known systems for producing a three-dimensional object makes it possible, in particular, to provide inexpensive containers for the solidifiable material.
  • these can be made entirely or partially of plastic.
  • very inexpensive containers can be made available that can be used for single use. These have the advantage that they do not have to be cleaned.
  • the solidifiable material can be completely hardened by exposure to suitable radiation. This allows the container with the excess, then solidified material to be disposed of.
  • the hardened solidifiable material does not form any special waste and can therefore also be disposed of inexpensively and in an environmentally friendly manner.
  • the container has to be filled with solidifiable material.
  • the container with the excess solidifiable material can then be prepared for easy disposal as described by completely curing the excess solidifiable material.
  • the container can then be removed from the system and replaced to produce a new three-dimensional object by a new container, which in turn can then be filled with the desired solidifiable material or is already filled.
  • the formation of the container bottom and the container wall from different materials has the particular advantage that the Container bottom can be formed in particular from a container bottom material which adheres poorly to the solidified solidifiable material or can simply be removed from it.
  • the container wall can be formed from a container wall material which has the necessary stability to hold the solidifiable material in the container.
  • the flexible and / or elastic design of the container base makes it possible, in particular, to detach the container base from the solidifiable material, in a simple manner if a further layer of the three-dimensional object is solidified and the solidified three-dimensional object is made of the solidifiable material, in particular, is gradually removed. So not yet solidified solidifiable material can flow between the container bottom and the last solidified layer of the three-dimensional object and in turn be solidified by exposure to radiation.
  • the container bottom is reclamped or connected to the container wall without tension. This means in particular that the container bottom is not self-supporting.
  • the container wall can be dimensioned to be as thin as possible, since it does not have to span the container bottom itself in a defined manner, for example evenly or even curved.
  • the container base is designed to be radiation-transparent for the radiation used to solidify the solidifiable material.
  • the bottom of the container can be transparent to electromagnetic radiation in a wavelength range from approximately 200 nm to approximately 1000 nm. Such a container bottom makes it possible in particular to solidify the expose bare material to form the three-dimensional object through the bottom of the container.
  • the container bottom is preferably designed in the form of a separating element.
  • a separating element in this sense makes it possible, in particular, to be pulled off the solidified three-dimensional object in a simple manner.
  • a suitable radiation is usually applied to a thin layer of the not yet solidified solidifiable material between the last solidified layer of the three-dimensional object and the container bottom.
  • the container bottom is connected to the three-dimensional object after the hardenable material has hardened, or adheres to it.
  • the three-dimensional object In order to be able to form a further layer of the three-dimensional object, the three-dimensional object, insofar as it is already solidified, must then be moved away from the container bottom so that solidified material that has not yet solidified can flow between the three-dimensional object and the container bottom.
  • the separating element thus enables the same to be pulled off or detached from the three-dimensional object in a simple manner.
  • the bottom of the container is provided with an anti-adhesive layer delimiting the material receiving space or if the bottom of the container is made of a bottom material of the container that does not adhere to the solidified material.
  • Such a development makes it possible, in particular, to detach the container base from the object in a simple manner after the formation of a solidified layer of the three-dimensional object, which adheres to or is in contact with the container base.
  • such a container bottom can form a separating element described above.
  • the detachment of the container bottom from the three-dimensional solidified object can be achieved in a particularly simple manner if the container bottom is designed in the form of a film or from a film.
  • a film has in particular the property of being flexible and / or elastic, depending on what material it is made of. In addition, it is thin and therefore inexpensive to manufacture. Furthermore, it can be easily connected to the container wall without tension or tension. If required, however, it can also be tensioned in the desired manner in order to define a defined container floor area which delimits the material holding space. This can be flat or curved.
  • the container base preferably has a thickness in a range from approximately 0.05 mm to approximately 3 mm. In particular, it can have a thickness in a range from approximately 0.07 mm to 0.3 mm. Forming container bottoms with such thicknesses makes it possible, in particular, to form them elastically and / or flexibly and to connect them to the container wall without tension or tension. Furthermore, a thin container bottom has the advantage that it is particularly well transparent to the radiation required to solidify the solidifiable material.
  • the bottom of the container can be made easily and inexpensively from a plastic.
  • the plastic can be polytetrafluoroethylene (PTFE), perfluoroalkoxy polymer (PFA), ethylene-tetrafluoroethylene copolymer (ETFE) and / or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
  • PTFE polytetrafluoroethylene
  • PFA perfluoroalkoxy polymer
  • ETFE ethylene-tetrafluoroethylene copolymer
  • FEP tetrafluoroethylene-hexafluoropropylene copolymer
  • a container base made of plastic enables it to be produced simply and inexpensively.
  • Such a container bottom can in particular be designed to be flexible and / or elastic.
  • the explicitly mentioned plastics or combinations of plastics make it possible to design the container bottom in the form of a separating element as described above, which can be detached from this, simply, that is to say without great effort, after the last exposed layer of the three-dimensional object to be produced has hardened leaves.
  • the container can be formed in a simple manner if the container wall extends vertically or essentially vertically away from the container bottom. Essentially vertical means in particular an inclination of approximately +/- 10 degrees with respect to the vertical.
  • the container wall is designed to be self-supporting.
  • it can be designed in the form of a self-contained annular container wall frame.
  • the container wall is formed from a film.
  • the film can be elastic and / or flexible.
  • Such a container wall is in particular not self-supporting and, moreover, is not suitable for tensioning the container base connected to it.
  • Such a container wall is therefore ideally suited to be connected to the container base without tension or without tension.
  • the container wall has a thickness in a range from approximately 0.05 mm to approximately 1.5 mm. In particular, it can have a thickness in a range from approximately 0.1 mm to approximately 0.6 mm.
  • Container walls with a thickness in the specified areas have in particular the properties mentioned, namely, depending on the material from which they are made, to be either self-supporting or not self-supporting.
  • the container wall can be formed easily and inexpensively from a plastic.
  • the container wall and the container base are connected to one another in a non-positive and / or material and / or form-fitting manner.
  • the container wall and the container bottom can be connected and / or glued and / or welded, in particular by clamping. Depending on which two materials are selected for the container wall and the container bottom, this can ensure that the container wall and the container terboden are securely connected and held together, even if the container is filled with the material to be solidified.
  • a connecting layer is arranged or formed between the container wall and the container bottom.
  • Such a connection layer is particularly advantageous if the container wall and the container base are made of different materials and / or are too thin to be connected to one another in a form-fitting manner.
  • the connecting layer is advantageously formed from a plastic and / or comprises at least one adhesive.
  • the container wall and the container base can be connected to one another in particular in a material and / or non-positive manner.
  • connection layer is designed in the form of a double-sided adhesive tape.
  • this can comprise two different adhesive layers in order to produce an optimal connection to the container wall and the container base if these are formed from different materials.
  • the container wall is sleeve-shaped and defines an inner cross-sectional area
  • the container bottom has at least two spatially separated flange sections which protrude laterally over the container wall and / or if the container wall has a free end facing the container bottom, on which at least two spatially separated container wall flange sections are formed, which extend parallel or essentially parallel to the container bottom away from the material receiving space.
  • the at least two flange sections of the container base can be arranged or designed to point in particular in opposite directions.
  • the at least two container wall flange sections in particular which are arranged or formed pointing in opposite directions.
  • the at least two flange sections and the at least two container wall flange sections can be arranged or designed such that they overlap one another at least partially, in particular completely.
  • Such an embodiment makes it possible, in particular, to connect the container wall and the container base to one another in the region of the flange sections or container wall flange sections.
  • a sleeve-shaped in the sense of this application means in particular a circumferential container wall with an arbitrary cross section, for example circular, oval, angular, in particular square, rectangular or square. In this way, containers of the desired shape and size can be easily formed.
  • the container wall is sleeve-shaped and defines an inner cross-sectional area, that the container bottom protrudes laterally on all sides over the sleeve-shaped container wall and / or that the container wall has a free end facing the container bottom, which is designed in the form of a peripheral container wall flange which extends parallel or essentially parallel to the container bottom from the material receiving space.
  • a container bottom protruding from all sides over the container wall in combination with a circumferential container wall flange enables in particular a connection between the container wall surrounding the container wall and the container bottom. In particular, an optimal sealing of the container can be achieved in this way.
  • the connecting layer is preferably arranged or formed between the at least two flange sections and the at least two container wall flange sections or between the container bottom and the container wall flange. In this way, in particular a connection between the container wall and the container wall base outside the material recording space can be realized so that the container bottom can be completely irradiated within the container wall.
  • the system comprises a holding device for holding the container, so that the container bottom is arranged transversely, in particular perpendicularly, to the direction of gravity in space and the container wall opposes or essentially against the direction of gravity away from the container bottom extends.
  • a holding device makes it possible in a simple manner to hold the container in a defined manner, in particular when it is filled with material to be solidified, in order to form three-dimensional objects from the material to be solidified by irradiation.
  • the system comprises a connecting device for the non-positive and / or positive connection of the container bottom and the container wall in a connecting position.
  • the connection device can be designed to connect the at least two flange sections and the at least two container wall flange sections to one another in the connection position.
  • the connecting device can be provided in addition to a material connection between the container bottom and the container wall, whereby the stability of the container can be further increased.
  • the system can be designed in a simple manner if the connecting device comprises at least one first connecting element and at least one second connecting element, if the at least one first connecting element and the at least one second connecting element are arranged and designed to act as a force and / or positive connection of the container bottom and the container wall in the connecting position between them.
  • a connecting device makes it possible, in particular, to hold the container bottom and the container wall, in particular the flange sections and the container wall flange sections, in a clamping manner between the at least one first connecting element and the at least one second connecting element.
  • the connection layer is arranged in the connection position between the at least one first connection element and the at least one second connection element. In particular, this makes it possible to additionally strengthen or stabilize a cohesive connection between the container bottom and the container wall by means of the connecting device.
  • connection layer is arranged in the connection position between the at least one first connection element and the at least one second connection element.
  • a container can be held together in a simple manner by means of the connecting device in a non-positive and / or positive manner.
  • a connection layer can also be provided. This can be arranged further away from the container wall than the connecting elements or alternatively closer.
  • several connecting layers can also be provided, one being able to be arranged between the container wall and the connecting elements and a further one further away than the connecting elements in relation to the container wall.
  • Such a configuration enables a non-positive and / or positive connection between the container bottom and the container wall in a simple manner.
  • the connecting device is designed in the form of a clamping device and if the at least one first connecting element in the form of a first clamping element and if the at least one second connecting element is designed in the form of a second clamping element.
  • a connecting device makes it possible, in particular, to keep the container base and the container wall or parts or sections thereof clamped between the first and second clamping elements.
  • the connecting device is designed in the form of a tensioning device for tensioning the bottom of the container.
  • the clamping device can be designed to clamp the container bottom in a container bottom plane.
  • the container floor level can in particular run transversely, for example perpendicularly, to the direction of gravity. With such a tensioning device, the container bottom can be tensioned into a desired shape, be it flat or curved.
  • the container base can be tensioned in a simple manner if the tensioning device comprises at least one first tensioning element and at least one second tensioning element, which is arranged or designed to interact with the first tensioning element, if the at least one first connection element and the at least one first Tensioning element forms or comprises and if the at least one second connecting element forms or comprises the at least one second tensioning element.
  • the connecting device can be used in this way to connect the container bottom and the container wall to one another and, optionally, at the same time also to clamp the container bottom in a defined shape. In this way, the container is adequately stable even if the container base is elastic or flexible.
  • the system can be made particularly simple and compact if the holding device comprises the connecting device.
  • the container wall defines a container wall height and if the container wall height has a value in a range from approximately 1 mm to has about 40 mm, in particular in a range from about 4 mm to about 10 mm.
  • Containers with container walls that have a container wall height in the specified areas make it possible, in particular, to form one or more objects from a solidifiable material accommodated in the material receiving space.
  • container walls of low height that is to say in particular with a height of less than 10 mm, do not require particularly high stability. In particular, it is not absolutely necessary to make them self-supporting. In this way, the container can be designed to conserve materials and resources.
  • the handling of the system becomes particularly simple if the container is in the form of a disposable container. As described at the outset, such a configuration of the container makes it easy to dispose of excess solidifiable material by solidifying it and disposing of it together with the disposable container.
  • Figure 1 is a schematic representation of an embodiment of a
  • Figure 2 is a schematic representation of an embodiment of a
  • Containers for holding solidifiable material
  • FIG. 3 shows a schematic illustration of a further exemplary embodiment of a container
  • FIG. 4 is a schematic representation of a section of a bottom of another embodiment of a container
  • FIG. 5 shows a schematic representation of a further exemplary embodiment of a container which is held by a holding device of the system;
  • FIG. 6 shows a schematic representation of a further exemplary embodiment of a container
  • FIG. 7 a schematic representation of a further exemplary embodiment of a container
  • FIG. 8 a schematic representation of a further exemplary embodiment of a container
  • Figure 9 is a schematic representation of a partial view of another
  • Figure 10 is a schematic representation of a partial view of another
  • Figure 11 is a schematic representation of a partial view of another
  • Embodiment of a container with a connecting device Embodiment of a container with a connecting device
  • Figure 12 is a schematic representation of a partial view of another
  • Embodiment of a container with a connecting device Embodiment of a container with a connecting device
  • Figure 13 is a schematic representation of a partial view of another
  • FIG. 14 a schematic illustration of a partial view of a further exemplary embodiment of a container with a connecting device
  • Figure 15 a schematic representation of a partial view of another
  • Embodiment of a container with a connecting device Embodiment of a container with a connecting device
  • Figure 16 is a schematic representation of a partial view of another
  • Embodiment of a container with a connecting device Embodiment of a container with a connecting device
  • Figure 17 is a schematic representation of a sectional view of another
  • Embodiment of a container with a clamping device Embodiment of a container with a clamping device
  • Figure 18 is a schematic representation of a sectional view of another
  • FIG. 19 shows a schematic illustration of a sectional view of part of a further exemplary embodiment of a system in the region of the carrier device;
  • FIG. 20 a schematic representation of a partial view of an exemplary embodiment of a structured carrier element
  • FIG. 21 shows a schematic representation of part of a further exemplary embodiment of a carrier device of a further exemplary embodiment of a system with a carrier device cover;
  • FIG. 22 shows a schematic representation of part of a further exemplary embodiment of a carrier device of a further exemplary embodiment of a system with a carrier device cover
  • FIG. 23 shows a schematic representation of part of a further exemplary embodiment of a carrier device of a further exemplary embodiment of a system with a carrier device cover
  • FIG. 24 a schematic representation of part of a further exemplary embodiment of a carrier device of a further exemplary embodiment of a system with a carrier device cover;
  • Figure 25 a schematic representation of a partial view of another
  • Embodiment of a system with a partial view of a carrier device and a container Embodiment of a system with a partial view of a carrier device and a container
  • FIG. 26 shows a schematic illustration of part of a further exemplary embodiment of a carrier device with a coupled carrier element
  • FIG. 27 shows a schematic illustration of part of a further exemplary embodiment of a carrier device with a coupled carrier element
  • Figure 28 is a schematic representation of an embodiment of a
  • FIG. 29 shows a schematic representation of part of a further exemplary embodiment of a system with a container comprising a closed container shell;
  • FIG. 30 shows a schematic representation of part of a further exemplary embodiment of a system with a container comprising a closed container shell
  • FIG. 31 a schematic representation of a partial sectional view of a further exemplary embodiment of a container with a container shell with an interface device
  • Figure 32 a schematic representation of a further embodiment of a material container with predetermined breaking point.
  • FIG. 1 A first exemplary embodiment of a system for producing a three-dimensional object in the form of a 3D printer 11 is shown schematically in FIG. 1 and is designated overall by reference number 10.
  • a container 12 in the form of a flat trough 14 for receiving the solidifiable material 16.
  • This is, for example, a liquid plastic, in particular a polymerizable resin, which can be solidified by exposure to radiation 30.
  • the system 10 further comprises a holding device 18 for holding the container 12 such that a container base 20 extends transversely, in particular perpendicularly, to the direction of gravity symbolized by the arrow 22.
  • the container base 20 is usually formed from a glass plate which rests on supports 24 of the holding device 18.
  • the system 10 further comprises an exposure device 26 for exposing the solidifiable material 16.
  • the exposure device 26 comprises a radiation source 28 for generating radiation 30.
  • the exposure device 26 is in particular arranged such that the generated radiation 30 can act on the solidifiable material 16 with the generated radiation 30 through the container bottom 20.
  • the system 10 further comprises a carrier device 34, which may include a holding plate 36, for example.
  • the carrier device 34 is arranged in such a way that the holding plate 36 is arranged above the container 12 counter to the direction of gravity, and an underside 38 of the holding plate 36 defines a holding surface 40, which points in the direction of the container 12 and is parallel or substantially parallel to the Container bottom 20 is aligned.
  • the carrier device 34 is arranged and designed to cooperate with a drive device 42, in particular in order to shift the holding plate 36 parallel or essentially parallel to the direction of gravity and opposite to the direction of gravity.
  • the drive device 42 and the exposure device 26 are connected to a control device 44 for control purposes.
  • the control device 44 is in turn connected to a computer 46 for control purposes.
  • Data which define the three-dimensional object 32 to be produced are transmitted in a suitable manner from the computer 46 to the control device 44, so that the control device 44 can control the exposure device 26 accordingly in order to expose a layer of the solidifiable material 16 directly adjacent to the container bottom 20 and thereby solidify.
  • the first layer which is solidified, adheres directly to the holding surface 40 of the holding plate 36.
  • the three-dimensional object 32 is formed in layers or continuously by hardening the solidifiable material 16, the drive device 42 moving the carrier device 34 step by step or continuously against the direction of gravity away from the container 12, so that the three-dimensional object 32 moves out of the Container 12 is formed out, as shown schematically in Figure 1.
  • the container 12 comprises a container base 20 and a circumferential container wall 48 protruding from the container base 20.
  • the container base 20 and the container wall 48 delimit a material receiving space 50 for receiving the solidifiable material 16.
  • the container base 20 is formed from a different material than the container wall 48.
  • the container base 20 is designed to be elastic and / or flexible and is connected to the container wall 48 without tension or tension.
  • unstressed or without tension means that the container base 20 would deform in an undefined manner when the material that could be solidified was filled into the material receiving space 50.
  • the container bottom 20 is comparable in its properties to an eardrum which, before being attached and tightened to a drum housing, is more or less arbitrary is deformable and is only stretched in a defined way by the tensioning device provided on the drum.
  • the container base 20 is designed to be radiation-transparent for the radiation 30 used to solidify the material which can be solidified.
  • the container base 20 is transparent to electromagnetic radiation 30 in a wavelength range from approximately 200 nm to approximately 1000 nm.
  • the container base 20 is formed in the form of a film 52 or from a film 52.
  • the container base 20 has a thickness 54 in a range from approximately 0.05 mm to approximately 3 mm.
  • the container base 20 can have a thickness 54 in a range from approximately 0.07 mm to approximately 0.3 mm.
  • the container base 20 is formed from a plastic.
  • the plastic can in particular be or contain polytetrafluoroethylene (PTFE), perfluoroalkoxy polymer (PFA), ethylene tetrafluoroethylene copolymer (ETFE) and / or tetrafluoroethylene hexafluoropropylene copolymer (FEP).
  • PTFE polytetrafluoroethylene
  • PFA perfluoroalkoxy polymer
  • ETFE ethylene tetrafluoroethylene copolymer
  • FEP tetrafluoroethylene hexafluoropropylene copolymer
  • the container base 20 is designed in the form of a separating element 56.
  • the container bottom 20 can take over the function of a separating element 56, which does not adhere or only adheres poorly to the three-dimensional object 32, namely to the last solidified layer thereof, the container bottom 20 is in one embodiment of a container 12 with a delimiting the material receiving space 50 Non-stick layer 58 provided.
  • the container base 20 is formed from a container base material that does not adhere to the solidified material 16 or only slightly. In particular, this can be the same material as that from which the non-stick layer 58 is formed.
  • the container wall 48 is designed to be self-supporting, specifically in the form of a self-contained, annular container wall frame 60.
  • a self-contained, annular container wall frame 60 Such an exemplary embodiment is shown schematically in FIG. 3 in section.
  • the container wall 48 is formed from a film 62.
  • the film 62 is designed to be elastic and / or flexible.
  • a thickness 64 of the container wall 48 is in the described exemplary embodiments of containers 12 in a range from approximately 0.05 mm to approximately 1.5 mm.
  • the thickness 64 is in a range from about 0.1 mm to about 0.6 mm.
  • the container wall 48 is formed from a plastic, for example a thermoformable or extrudable plastic.
  • the container wall 48 and the container base 20 are connected to one another.
  • the connection is preferably realized in a force-fitting and / or material and / or form-fitting manner.
  • connection layer 66 In one embodiment of a container 12, a material connection is realized by means of a connection layer 66.
  • the connection layer 66 can in particular be formed from a plastic and / or comprise one or more adhesives.
  • the connection layer 66 is in the form of a double-sided adhesive tape 68.
  • the container wall 48 is sleeve-shaped and defines an inner cross-sectional area 70.
  • the container base 20 has two or more flange sections 72 spatially separated from one another. These point in particular in opposite directions. The flange sections 72 project laterally beyond the container wall 48.
  • the container wall 48 has a free end 74 facing the container base 20, on which two or more container wall flange sections 76 are arranged or formed which are spatially separated from one another and which point in particular in opposite directions.
  • the container wall flange sections 76 extend away from the material receiving space 50, namely in parallel and essentially parallel to the container base 20.
  • the container wall 48 is sleeve-shaped and defines an inner cross-sectional area 70.
  • the container bottom 48 projects laterally on all sides over the sleeve-shaped container wall 48.
  • a free end 74 of the container wall 48 facing the container base 20 is designed in the form of a peripheral container wall flange 78 which extends parallel or essentially parallel to the container base 20 from the material receiving space 50.
  • connection layer 66 is arranged or formed between the two or more flange sections 72 and the two or more container wall flange sections 76.
  • the connecting layer 66 is arranged or formed between the container base 20 and the container wall flange 78.
  • Another exemplary embodiment of a system 10 comprises a connecting device 80 for the non-positive and / or positive connection of the container bottom 20 and the container wall 48 in a connecting position.
  • the connecting device 80 comprises one or more first connecting elements 82 and one or more second connecting elements 84.
  • the first and second connecting elements 82 and 84 are arranged interactively for the non-positive and / or positive connection of the container bottom 20 and the container wall 48 in the connecting position between them.
  • connection layer 66 is arranged in the connection position between the first and second connection elements 82 and 84.
  • connection layer 66 of the container 12 is arranged in the connection position between the first and second connection elements 82 and 84.
  • the connecting elements 82 and 84 are arranged further away from the container wall 48 than the connecting layer 66.
  • connection layer 66 of the container 12 is arranged between the connection elements 82 and 84, the connection layer 66 is arranged further away from the container wall 48 than the connection elements 82 and 84.
  • the first connecting elements 82 engage directly on the container base 20 and the second connecting elements 84 directly on the container wall flange 78.
  • the first connecting elements 82 directly or indirectly engage one or more
  • the connecting device 80 is designed in the form of a clamping device 86.
  • the first connecting elements 82 form first clamping elements 88
  • the second connecting elements 84 second clamping elements 90.
  • the connecting device 80 is designed in the form of a clamping device 92 for flat or curved clamping of the container base 20. If the container base 20 is clamped flat, it defines a container base plane 94. In one exemplary embodiment of a system 10, this extends vertically to the direction of gravity.
  • the tensioning device 92 comprises one or more first tensioning elements 96 and one or more second tensioning elements 98, which are arranged or designed to work together.
  • the one or more first connecting elements 82 form or include the one or more first clamping elements 96.
  • the one or more second connecting elements 84 form or include the one or more second clamping elements 98.
  • the tensioning device 92 is also designed such that cooperating first and second tensioning elements 96 and 98, which act on one side of the container 12, relative to other tensioning elements 96 and 98, which are located at another location attack the container 12, can be moved away from each other in the opposite direction to tension the bottom of the container. For example, they can be moved away from one another parallel to the container bottom 20. This is shown schematically in FIG. 17 by the small arrows which are assigned to the tensioning elements 96 and 98.
  • the holding device 18 comprises the connecting device 80.
  • the container wall 48 defines a container wall height 100 which has a value in the described exemplary embodiments of containers 12 in a range from approximately 1 mm to approximately 40 mm. In particular, it has a value in a range from approximately 4 mm to approximately 10 mm.
  • All the exemplary embodiments of containers 12 described above are preferably designed in the form of disposable containers 102. If they are designed as disposable containers 102, the containers 12 are filled with solid material 16 for producing three-dimensional objects 32. When the three-dimensional objects 32 to be printed are finished, the disposable containers 102 are not cleaned, but instead are exposed to radiation 30, for example, in order to harden the not yet hardened, solidifiable material 16. The disposable containers 102 can then be disposed of easily and in an environmentally friendly manner using the hardened, excess solidifiable material. A complex cleaning of the container 12 is not necessary.
  • system 10 for producing a three-dimensional object 32
  • the system 10 comprises one or more carrier elements 104 for holding the three-dimensional object 32 formed from the solidifiable material 16.
  • An exemplary embodiment of a carrier element 104 is designed for releasable coupling to the carrier device 34 of the system 10 in a coupling position.
  • the carrier element 104 defines a holding surface 106 which points away from the carrier device 34 and on which the three-dimensional object 32 is held.
  • the holding surface 106 is formed from a plastic.
  • the holding surface 106 defines a holding surface plane 108.
  • the holding surface 106 is structured in an exemplary embodiment of a carrier element 104. It has a plurality of stabilizing grooves 110 in order to make the carrier element self-supporting.
  • An exemplary embodiment of a system 10 comprises a carrier device cover 112 for the carrier device 34.
  • the carrier device cover 112 comprises the carrier element 104.
  • An exemplary embodiment of a carrier device cover 112 defines a carrier device receptacle 114, into which the carrier device 34 is inserted completely or partially in a form-fitting or essentially form-fitting manner in the coupling position.
  • the holding plate 36 engages in the carrier device receptacle 114.
  • An exemplary embodiment of a carrier device cover 112 is designed in the form of a puller 116 which comprises or defines the carrier device holder 114.
  • a carrier device cover 112 is designed in the form of a deep-drawn blister 118, which comprises or defines the carrier device holder 114.
  • the deep-drawn blister can in particular be designed such that it can be clipped onto the holding plate 36 of the carrier device 34. This can be achieved, for example, by a circumferential, recessed edge 120 which, like a flange, engages behind the holding plate 36 in the coupling position. All described exemplary embodiments of carrier device covers 112 are preferably formed from a plastic.
  • the carrier element (s) 104 are also formed from a plastic.
  • the carrier element 104 is formed in one piece.
  • Another exemplary embodiment of a carrier device cover 112 is formed in one piece.
  • a carrier element 104 is designed in the form of a film 121 or from a film 122.
  • the carrier element 104 is designed to be elastic and / or flexible in one exemplary embodiment.
  • the described exemplary embodiments of carrier elements 104 have a thickness 124 in a range from approximately 0.1 mm to approximately 0.8 mm.
  • a thickness 124 is in a range from about 0.1 to about 0.5 mm.
  • An exemplary embodiment of a carrier device cover 112 has a circumferential, radially projecting retaining flange 126 which, in the coupling position, extends transversely, in particular perpendicularly, to the direction of gravity.
  • a carrier device cover 112 has a retaining edge 128 which runs around it and extends radially, which in the coupling position extends transversely, in particular perpendicularly, to the direction of gravity 22.
  • the carrier element 104 is arranged or formed opposite or essentially opposite the container bottom 20 of the container 12.
  • the holding surface 106 of the carrier element 104 is arranged or designed to point in the direction or essentially in the direction of the container base 20.
  • the carrier element 104 and the container base 20 are arranged or designed to be movable relative to one another in one exemplary embodiment of a system 10.
  • the retaining flange 126 or the retaining edge 128 have a retaining distance 130 from the retaining surface 106 which corresponds at least approximately to the container height 104. This ensures that even if the carrier device cover 112 dips so far into the container 12 that the holding surface 106 touches the container bottom 20, the retaining flange 126 or the retaining edge 128 does not or only little with the solidifiable material received in the material receiving space 50 16 can come into contact. A flow around, for example, the holding plate 36, the carrier device 34 can be effectively prevented in this way.
  • the carrier element 104 comprises one or more first carrier element coupling elements 132, which in the coupling position engage with one or more second carrier element coupling elements 134 of the carrier device 34 in a non-positive and / or positive manner.
  • each first carrier element coupling element 132 is optionally designed in the form of a coupling projection or in the form of a coupling recess 136.
  • Each second carrier element coupling element 134 is designed corresponding to the respective first carrier element coupling element 132 either in the form of a coupling recess or in the form of a coupling projection 138.
  • the carrier element 104 and the carrier device 34 are coupled to one another in the coupling position in a clamping and / or latching and / or adhesive manner.
  • the system 10 can in particular comprise a carrier element coupling device 140 for the non-positive and / or positive and / or material coupling of the one or more carrier elements 104 and the carrier device 34 in FIG.
  • the carrier element coupling device 140 comprises the first and second carrier element coupling elements 132 and 134, which are arranged and designed to work together for the non-positive and / or positive and / or integral connection of the carrier element 104 and the carrier device 34 in the coupling position.
  • the carrier element coupling device 140 comprises a clamping device 142 for the clamping fixing of the carrier element 104 to the carrier device 34 in a carrier element plane 144.
  • the carrier element plane 144 preferably runs transversely, in particular perpendicularly to the direction of gravity 22.
  • the clamping device 142 can in particular comprise a plurality of first clamping members 146 and a plurality of second clamping members 148, which are each arranged and designed to act together.
  • the first and second clamping members 146 and 148 are arranged or designed so as to be movable relative to one another, so that, for example, a holding projection 150 which projects from the carrier element 104 from a rear side 152 thereof can be inserted between a first clamping member 146 and a second clamping member 148 , These can then be moved towards one another in order to clamp the holding projection 150 between them.
  • the clamping device 142 can in particular also be designed such that the carrier element 104, in particular if it is formed from a film 122, can be held under tension on the carrier device 134.
  • the carrier element 104 can be moved together with the carrier device 34 in a direction parallel or substantially parallel to the direction of gravity and counter to the direction of gravity by means of the drive device 42.
  • All of the described exemplary embodiments of carrier elements 104 can be designed in particular as disposable carrier elements 154. For example, if they are formed in one piece with the carrier device cover 112, the carrier device cover is also designed for single use or for use for a few printing operations. All of the exemplary embodiments of carrier elements 104 can be coupled simply and securely to the carrier device 34 in the coupling position in the manner described. The three-dimensional object 32 can then be formed in a known manner by hardening the solidifiable material 16. When the three-dimensional object 32 is finished, the carrier element 104 is decoupled from the carrier device 34. The carrier device 34 is then ideally not contaminated with the solidifiable material 16 and therefore does not have to be cleaned.
  • the completed three-dimensional object 32 can now be removed from the carrier element 104. Uncured solidifiable material which adheres to the carrier element 104 or to the carrier device cover 112 can be cured by additional exposure to the radiation 30. The disposable carrier element 154 can then be disposed of simply, safely and in particular in an environmentally friendly manner after the excess, non-solidifiable material has hardened. In this case, cleaning of the carrier element 104 is unnecessary.
  • a new carrier element 104 or a new carrier device cover 112 is coupled to the carrier device.
  • containers 12 and carrier elements 104 or carrier device covers 112 are formed separately from one another and form independent components.
  • the solidifiable material 16 can in particular be provided in a material container 156. The solidifiable material 16 can then be filled from the material container 156 into the material receptacle 50 of the container 12 as required.
  • a container sleeve 158 which defines a container interior 160.
  • the container 12 itself forms part of the container shell 58, so that the container interior 160 comprises the material receiving space 50.
  • the container casing 158 is designed to be closed and further comprises the carrier element 104, the holding surface 106 of which delimits the container interior 160.
  • Designing a container 12 with the described container casing 158 makes it possible to design the three-dimensional object 32 to be completely enclosed by the container casing 158.
  • a capsule 162 is quasi formed in which the production of the three-dimensional object 32 is carried out.
  • the container bottom and the container wall form part of the container shell 158.
  • the container shell 158 is completely closed.
  • a material container 156 which contains the solidifiable material 16, is arranged in the container interior 160. This can be equipped with a predetermined breaking point, for example, and then, when the container casing 158 is coupled to the carrier element 104 to the carrier device 134 and the container 12 is held on the holding device 18, can be opened in order to accommodate the solidifiable material 16 in the material receptacle - bring in room 50.
  • the three-dimensional object 32 can now be formed in a known manner. If the three-dimensional object 32 is finished, the container casing 158 can be removed from the system 10 again. To remove the three-dimensional object 32, the container casing 158 is irreversibly destroyed, for example.
  • Unconsolidated, solidifiable material 16 can then be completely cured by suitable exposure, so that the container 12 can be formed in particular in the form of a disposable container 102, which includes the container casing 158.
  • the disposable container 102 can then, as already described above, be disposed of safely and, above all, in an environmentally friendly manner.
  • the container 12 with the container sleeve 158 can be designed in particular in the form of one of the exemplary embodiments of containers 12 described above.
  • the carrier element 104 can also be designed in the form of one of the exemplary embodiments described above. Any combinations of exemplary embodiments of containers 12 and carrier elements 104 can thus be combined with one another and formed into a closed capsule 162 by means of a container casing 158.
  • the container 12 comprises an interface device 164 arranged or formed on the container shell 158 for introducing the solidifiable material 16 through the container shell 158 into the container interior 160.
  • the interface device 164 comprises an opening 166.
  • this can be formed on a connecting piece 168 which is sleeve-shaped and has an external thread 170.
  • a closure element 172 is provided which has a screw connection 176 provided with an internal thread 174, which internal thread 174 is designed to correspond to the external thread 170.
  • the interface device 164 can also be in the form of a bayonet connection Detachable connection with a corresponding material container interface device 178 may be formed.
  • the material container interface device 178 is provided in the form of a filler neck 182 provided with an internal thread 180, the internal thread 180 being designed to correspond to the external thread 170 of the interface device 164.
  • the material container 156 can in particular be screwed onto the container cover 158 in this way.
  • a fluid-tight that is to say liquid-tight and / or gas-tight, connection can be formed between the material container 156 and the container casing 148 in a filling position, so that the solidifiable material 16 can be introduced easily and safely into the material receiving space 50 in the container interior 160 can.
  • Interface device 164 a membrane 184. This can be pierced, in particular with a cannula, so that the fixable material can be introduced into the container interior 160 in this way.
  • the interface device 164 is arranged or formed at a distance from the container base 20. In particular, in one exemplary embodiment of a container 12, it is not arranged or formed on the container wall 48.
  • the interface device 164 is arranged or formed in or on the container wall 48.
  • the container casing 158 is formed from a film 186.
  • the film 186 is designed to be elastic and / or flexible.
  • the container casing 158 has a thickness 188 in a range from approximately 0.05 mm to approximately 1.5 mm. In particular, it has a range from approximately 0.1 mm to approximately 0.6 mm.
  • the container shell 158 is formed from a plastic.
  • the container shell is formed in one piece.
  • the container envelope 158 is formed in one piece except for the container base 20, that is to say with the exception of the container base 20.
  • the container 12 can be configured as described above in various exemplary embodiments of containers 12 in such a way that the container base 20 and the container wall 48 are each made of a different material.
  • the container casing 158 is designed such that the carrier element 104 is arranged or formed opposite the container bottom 20 or essentially opposite. Accordingly, the holding surface 106 is then arranged or designed to point in the direction or essentially in the direction of the container bottom 20.
  • the container cover 158 comprises one of the exemplary embodiments of carrier device covers 112 described above.
  • the carrier device cover 112 is an integral part of the container cover 158.
  • a material container 156 is equipped with a predetermined breaking point 190, which can be irreversibly destroyed in order to open the material container 156.
  • the container shell 158 can only be opened by removing it to remove the solidified three-dimensional object.
  • a container casing 158 can in particular have a container casing breaking point 192 which can be irreversibly destroyed in order to open the container casing 158 for removing the three-dimensional object 32.
  • the container envelope 158 is designed to be impermeable or essentially impermeable to the radiation 30 used to solidify the material 16 that can be solidified.
  • the container shell 158 is designed to be impermeable to electromagnetic radiation 30 in a wavelength range from 200 nm to approximately 1000 nm.
  • the container shell 158 is formed from a container shell material which has a transmittance of at most 10% for the radiation 30 used to solidify the solidifiable material 16.
  • the transmittance can be a maximum of 1%.

Abstract

L'invention concerne un système (10) destiné à la fabrication d'un objet en 3D (32) par durcissement, en particulier par couches ou en continu, d'un matériau (16) apte à durcir sous l'effet d'un rayonnement (30), lequel système comprend un récipient (12) destiné à recevoir le matériau durcissable (16), récipient dans lequel le matériau durcissable est durci par couches ou en continu sous l'effet d'un rayonnement (30) pour la fabrication de l'objet en 3D (32), ledit récipient comportant un fond (20) et une paroi (48, 62) périphérique faisant saillie du fond (20) du récipient, le fond (20) et la paroi du récipient délimitant un espace de réception de matériau destiné à recevoir le matériau durcissable. Le but de l'invention est de perfectionner un tel système de sorte que son fonctionnement et en particulier sa manipulation soient simplifiés. À cet effet, le fond du récipient est réalisé dans un matériau différent de celui de la paroi du récipient et le fond du récipient est élastique et/ou flexible et est relié à la paroi du récipient à l'état non tendu ou sans tension.
PCT/EP2019/070959 2018-08-06 2019-08-05 Système destiné à la fabrication d'un objet en 3d WO2020030563A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018119070.0 2018-08-06
DE102018119070 2018-08-06

Publications (1)

Publication Number Publication Date
WO2020030563A1 true WO2020030563A1 (fr) 2020-02-13

Family

ID=67587744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/070959 WO2020030563A1 (fr) 2018-08-06 2019-08-05 Système destiné à la fabrication d'un objet en 3d

Country Status (1)

Country Link
WO (1) WO2020030563A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253002A1 (fr) * 2001-04-23 2002-10-30 Envision Technologies GmbH Dispositif et procédé pour la séparation non-destructrice d'un produit constitué de couches durcies d'un plan de travail
WO2012021940A1 (fr) * 2010-08-20 2012-02-23 Zydex Pty Ltd Appareil et procédé de réalisation d'un objet
WO2013026087A1 (fr) * 2011-08-20 2013-02-28 Zydex Pty Ltd Appareil et procédé pour fabriquer un objet
WO2017116990A1 (fr) * 2015-12-31 2017-07-06 Formlabs, Inc. Systèmes et procédés de substrats souples pour fabrication additive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253002A1 (fr) * 2001-04-23 2002-10-30 Envision Technologies GmbH Dispositif et procédé pour la séparation non-destructrice d'un produit constitué de couches durcies d'un plan de travail
WO2012021940A1 (fr) * 2010-08-20 2012-02-23 Zydex Pty Ltd Appareil et procédé de réalisation d'un objet
WO2013026087A1 (fr) * 2011-08-20 2013-02-28 Zydex Pty Ltd Appareil et procédé pour fabriquer un objet
WO2017116990A1 (fr) * 2015-12-31 2017-07-06 Formlabs, Inc. Systèmes et procédés de substrats souples pour fabrication additive

Similar Documents

Publication Publication Date Title
EP2883603B1 (fr) Dispositif de stockage et de mélange de ciment osseux
EP3374160A2 (fr) Système stéréolithographique doté d'un dispositif cartouche
EP1344500B1 (fr) Capsule de mélange de plusieurs composants, en particulier pour l'art dentaire
DE4430374C2 (de) Verfahren und Vorrichtung zur Herstellung eines dreidimensionalen Gegenstandes
EP3174690B1 (fr) Dispositif de stéréographie à unité modulaire formant contenant
EP2774001B1 (fr) Dispositif de dosage pour doser par commande manuelle un matériau photodurcissable, kit et procédé
EP2823881A1 (fr) Dispositif et procédé de stockage et de mélange de ciment osseux
DE102015116245B4 (de) Vorrichtung und Verfahren zum Öffnen von Glasampullen sowie Zementiervorrichtung
DE112005001411T5 (de) Systeme und Verfahren zum Herstellen von 3D-Objekten
EP0663348A1 (fr) Dispositif pour le vidage d'un sac tubulaire
EP3512640B1 (fr) Dispositif et procédé de dosage dynamique de matières d'étanchéité
AT509979B1 (de) Vorrichtung zum reinigen und/oder desinfizieren einer griffstange
DE10360526A1 (de) Reagenzkassette mit Reagenzbehälter für partikelhaltiges Reagenz für dessen noninvasive Homogenisierung
EP2873465A1 (fr) Piston pour distribuer un fluide d'une cartouche
DE102008054993B4 (de) Vorrichtung und Verfahren zur Herstellung eines Formkörpers mit Mikrostrukturen
WO2020030563A1 (fr) Système destiné à la fabrication d'un objet en 3d
DE102011007475A1 (de) Folienkartusche und Verfahren zur Herstellung einer Folienkartusche
WO2019038225A1 (fr) Cassette pour insérer un échantillon de tissu
WO2020030562A1 (fr) Système destiné à la fabrication d'un objet en 3d
WO2020030564A1 (fr) Système destiné à la fabrication d'un objet en 3d
DE102015216644B4 (de) Ausgabeendabdichtung für Tonerbehälter
EP0429152B1 (fr) Unité de développement
DE102005037890B4 (de) Vorrichtung zum Aufbewahren und Anwenden eines flüssigen Dentalmaterials
DE102011054959A1 (de) Dosiervorrichtung zum handgesteuerten Dosieren eines lichtaushärtenden Materials und Set
DE102011005380A1 (de) Optoelektronische Vorrichtung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19752455

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19752455

Country of ref document: EP

Kind code of ref document: A1