WO2026017902A1 - Procédé de production d'un élément de construction, dispositif d'impression associé et tête d'impression associée - Google Patents

Procédé de production d'un élément de construction, dispositif d'impression associé et tête d'impression associée

Info

Publication number
WO2026017902A1
WO2026017902A1 PCT/EP2025/070755 EP2025070755W WO2026017902A1 WO 2026017902 A1 WO2026017902 A1 WO 2026017902A1 EP 2025070755 W EP2025070755 W EP 2025070755W WO 2026017902 A1 WO2026017902 A1 WO 2026017902A1
Authority
WO
WIPO (PCT)
Prior art keywords
printing
functional
nozzle
constructive
solid
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.)
Pending
Application number
PCT/EP2025/070755
Other languages
English (en)
Inventor
Chris DE WOLF
Kristiaan VANDER VELPEN
Stijn NOTEBAERT
Helena DE WOLF
Dieter VANDER VELPEN
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.)
Construct3d
Original Assignee
Construct3d
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 Construct3d filed Critical Construct3d
Publication of WO2026017902A1 publication Critical patent/WO2026017902A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B29C64/336—Feeding of two or more materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—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
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the present invention relates to a method for producing a constructive element, a related printing device and a related printing head.
  • Such method comprises the steps of first producing/printing, by means of a first printing nozzle of a printing head of a printing device, on a layer-by-layer basis, of a first non-solid printing material, a mold of said constructive element which step is followed by a second step of filling, (by a second printing nozzle of said printing head of said printing device), said mold of said constructive element, in a layer-by- layer manner with a second non-solid printing material.
  • a constructive element such as a building, a part thereof, a vehicle like for example a boat or other design elements such as light fixtures and staircases can be built in a very efficient way further being very efficient in the use of material preventing waste of material as much as possible.
  • the known method for producing such a constructive element such as buildings is disadvantageous in that it is difficult and laborious to combine multiple construction steps, spread over different disciplines such as shell construction and finishing of such a shell construction, incorporating for example technical equipment, flooring, interior walls, doors, windows and fixed furniture.
  • this object is achieved by the method for producing a constructive element, as described in claim 1 and the related printing device as described in claim 6 and a related print head as described in respective claims 12
  • this objective is achieved by said method for producing a constructive element by first printing, by means of a printing nozzle of said at least one printing nozzle of said printing device, on a layer-by-layer basis by means of a first non-solid printing material and using a first printing method, a first functional element of said plurality of functional elements of said constructive element, and printing, by means of a printing nozzle of said at least one printing nozzle of said printing device, on a layer-by-layer basis, by means of a second non-solid printing material and using a second printing method selected, a second functional element of said plurality of functional elements of said constructive element, wherein said method further comprises the steps of selecting, said first non-solid printing material, from a plurality of printing materials and selecting said first printing method from a plurality of printing methods based on said at least one functional requirement of said first functional element, wherein each non-solid printing material of said plurality of non-solid printing materials comprises distinct characteristics, each characteristic supporting a distinct functional requirement of said functional element and selecting, said second non-solid printing
  • the constructive element includes further functional elements and where based on such further functional elements, e.g. a second functional element and third functional element, the optimum, appropriate or best suiting non-solid printing material can be selected from a plurality of non-solid printing materials to optimum support such functional element or functional requirement of the first functional element, i.e. the mold, the support structure, a structural element, a wall element, a floor element, a roof element, a staircase element, an element of a support beam or column of the said constructive element.
  • a first functional element such as a mold or support construction forming the outer structure of the constructive element
  • the constructive element includes further functional elements and where based on such further functional elements, e.g. a second functional element and third functional element
  • the optimum, appropriate or best suiting non-solid printing material can be selected from a plurality of non-solid printing materials to optimum support such functional element or functional requirement of the first functional element, i.e. the mold, the support structure, a structural element, a wall element,
  • said second printing material is selected from said plurality of non-solid printing materials and additionally a printing method is selected from a plurality of printing methods based on said second functional element of said constructive element and/or based on said at least one functional requirement of said second functional element of said constructive element wherein said printing method selected is defined by at least one of: the speed of the printing nozzle, the temperature of the printing material in the printing nozzle , the pressure in the printing nozzle, shape of the printing nozzle and the printing path of said printing nozzle and where the second printing material and a printing method that is selected, optimum supports the printing of such functional element or functional requirements of the second functional element of the constructive element and hence the optimum results are obtained in matching the requirements of the produced constructive element.
  • Each unique combination of a certain printing material and certain printing method results in a distinct print having distinct characteristics such as mechanical characteristics like strength, stiffness, hardness, tensile strength, thermal characteristics like melting point, fire resistance, expansion coefficient, durability characteristics like UV resistance, corrosion resistance, visual characteristics like texture, heat conduction and acoustic characteristics like acoustic permeability.
  • the method for producing such a constructive element is advantageous in that it is enabled to integrate distinct elements, e.g. elements supporting electricity facilities, sanitary facilities, HVAC elements, finishing steps, like plastering step, openings for interior and exterior doors and windows, elements of fixed furniture, or further (functional) elements, in such a constructive element and moreover to integrate the earlier mentioned functional requirements of such functional elements of the constructive element in a one and the same step of producing the first functional element such as a first functional element, such as a mold for the constructive element or a support structure of the constructive element, while at the same time or subsequently producing the additional functional elements and or functional requirements of the constructive element e.g. like a building or a part thereof, a vehicle like for example a boat or other design elements such as light fixtures and staircases.
  • distinct elements e.g. elements supporting electricity facilities, sanitary facilities, HVAC elements, finishing steps, like plastering step, openings for interior and exterior doors and windows, elements of fixed furniture, or further (functional) elements, in such a constructive element and moreover to integrate the earlier
  • the constructive element may be a building, a part thereof a vehicle, like a boat and added design elements like light fixtures and staircases or any further distinct element.
  • a "first functional element" of a constructive element is a distinct element of such constructive element e.g., being a mold of such constructive element, a support structure or a structural element, a wall element, a floor element, a roof element, a staircase element, an element of a support beam or column of a wall element, a floor element, a roof element, staircase element, element of a support beam or column.
  • a "second functional element" of a constructive element is a distinct element of such constructive element for example, a finishing layer having a certain texture and/or color, an insulation layer having a certain U-value (thermal transmittance value) or an acoustics layer having certain acoustic properties, a duct for pipes, a hollow space for wall box - tap for gas, water, but additionally also an additional element, layer for reinforcement of the construction or be a structural layer for a door frame or window, a structural layer for fixed furniture element, level guides for screed and flooring.
  • a functional requirement of a constructive element defines characteristics of the various functional elements that make up the constructive element that is printed and constitutes an additional requirement regarding special functionalities of a constructive element such as sturdiness of the outer wall of the constructive element or a part thereof, a smoothness, a water-repellent characteristic, - rough surface finish, colored finish of parts of the constructive element.
  • a Printing method is defined by at least one of: the speed of the printing nozzle, the temperature of the printing material in the printing nozzle, the pressure in the printing nozzle, shape of the printing nozzle and the printing path of said printing nozzle.
  • a non solid Printing material is a material that is printable by a printing nozzle, where such material may be characterized by certain properties such as viscosity, hardening time, and further chemical properties like cross linking ability, UV resistance, water resistance, etc.
  • a non limitative list of examples of such printing materials is as follows: insulating materials, concrete, biodegradable material such as PLA or PLA mixed with solid compounds like limestone, natural fibers (wood, flax), etc and liquid compounds like glycerin, etc. Plastics like recycled PVC, ABS, PETG and metals like steel, aluminum are further examples of such printing materials.
  • a Printing nozzle is an element of the print head that extrudes the printing material, using an appropriate mix of printing methods characterized by parameters such as pressure, heat, speed, nozzle shape, etc.
  • Such printing device may comprise several printing nozzles each dedicated to different printing methods.
  • Examples of such three-dimensional printing according to the present invention are pressurized extrusion, material jetting, direct energy deposition, sheet lamination or other means of polymerization like chemical polymerization or UV, heat exposure, crosslinking of materials.
  • the method further comprises the step of filling, by means of a filling nozzle of said at least one filling- nozzle of said printing device, at least said first functional element of said constructive element, with a filling material selected from a from a plurality of filling materials.
  • the earlier constructed first functional element such as a mold comprising further functional elements and/or functional requirements is filled with the printing material having special specific characteristics supporting special characteristics of the constructive element in that the further material may provide isolating characteristics or strengthening the constructive element or both or provides with thermal insulation, acoustic insulation, provide water repellant characteristics or air tightness.
  • a filling method is defined by parameters such as pressure, temperature, filling speed, nozzle shape, oscillation of the filling nozzle, etc.
  • a filling material is a material that is usable by means of a filling nozzle FN, where such filling material, for instance, has following properties such as a suitable value of viscosity, a suitable value of hardening time, a suitable value of Weight and/or a suitable value of abrasiveness, etc.
  • filling materials are EPS, concrete, PUR or natural insulating fibers like thatch and wool, self-reinforcing concrete, other cement mixtures, lime and stone mixtures, clay.
  • the method according to the present invention further comprises the step of selecting a further printing material and a printing method based on at least one functional requirement of said at least one functional element of a third functional element.
  • further functional elements of the constructive element can be printed in a manner optimum supporting features of such functional element by selecting the appropriate printing material having suitable characteristics and a printing method, optimum supporting the printed functional elements.
  • the functional requirement includes at least one of: sturdiness of the outer wall of the constructive element or a part thereof, a smoothness, a water- repellent characteristic, isolation properties, vapor barrier properties, rough surface finish, colored finish of parts of the constructive element.
  • Figure 1 shows a functional overview of the printing device PD comprising respective functional means
  • Figure 2 shows an overview of the structure of a constructive element CEL with corresponding functional elements and respective functional requirements to be produced by means of the printing method and printing device according to embodiments of the present invention.
  • Figure 3 shows an overview of printing methods PME1 ,...PMEn;
  • Figure 4 shows an overview of the printing materials PMA1 ,...PMAn;
  • Figure 5 shows an overview of the filling materials FMA1 ,...FMAn.
  • Figure 6 shows a functional element FEL being (a) printed using a printing method PME1 ,..,PMEn and a print material PMA1 , ,.,PMAn or (b) filled with a filling material FMA1 ,..FMAn.
  • Figure 7 shows an example of a printed constructive element.
  • top, bottom, over, under and the like in the description and the claims are used for descriptive purposes and not necessarily for describing relative positions. The terms so used are interchangeable under appropriate circumstances and the embodiments of the invention described herein can operate in other orientations than described or illustrated herein.
  • a first essential element of the Printing Device PD for producing a constructive element comprising a plurality of functional elements, wherein at least one functional element of said plurality of functional elements of said constructive element is characterized by at least one functional requirement, are a printing nozzle PN1, ..PNx of at least one printing nozzle, that is configured to print, on a layer-by-layer basis, by means of a first non-solid printing material and a first printing method, a first functional element of said plurality of functional elements of such constructive element; and optionally further a printing nozzle PN1 ..PNx ,that is configured to print on a layer-by-layer basis, by means of a second non-solid printing material and/or a second printing method , a second functional element of said plurality of functional elements of said constructive element.
  • the printing device PD further comprises a selecting means SEM, that is configured to select said first non-solid printing material, from a plurality of printing materials and additionally to select said first printing method from a plurality of printing methods based on said at least one functional requirement of said first functional element, wherein each non-solid printing material of said plurality of non-solid printing materials comprises distinct characteristics, each characteristic supporting a distinct functional requirement of said functional element.
  • the selecting means SEM is further configured to select, said second non-solid printing material from said plurality of non-solid printing materials and/or select said second printing method from a plurality of printing methods based on at least one functional requirement of said second functional element.
  • the printing device further may comprise a nozzle control means NCM that is configured to control a printing nozzle of the at least one printing nozzle PNi ....PNx to print each of the functional elements of the constructive element based on a design of the constructive element using selected printing material and a printing method of each functional element of said constructive element.
  • a nozzle control means NCM that is configured to control a printing nozzle of the at least one printing nozzle PNi ....PNx to print each of the functional elements of the constructive element based on a design of the constructive element using selected printing material and a printing method of each functional element of said constructive element.
  • the printing method is defined by at least one of the speed of the printing nozzle, the temperature of the printing material in the printing nozzle, the pressure in the printing nozzle, the shape of the printing nozzle and a printing path of said printing nozzle.
  • the speed, the pressure setting the printing path the printing and consequently the printing result is determined based on these print settings.
  • the characteristics of the printing results such as a functional element are adapted in accordance with the settings of the printing method.
  • the printing device further may comprise a computer processing means PRM that based on a design is configured to instruct the nozzle control means NCM to drive the nozzle control means NCM to print the meant constructive element.
  • the processing means PRM may be included in the printing device PD or alternatively be located remotely from said printing device in a personal computing device or a dedicated computing device.
  • the computer processing means PRM that is configured to execute a software application such as software application that is configured to design, to manage the 3-dimensional model (i.e. store, design, amend retrieve, send etc.) a design of a 3-dimensional model of said constructive element such as a building.
  • a second relevant element of the computing device is the memory for storing the software application for designing the 3-dimensional building.
  • the memory is configured to store further application for being executed by the computer processing means PRM.
  • Such a memory may be a local memory device but alternatively may be an external and optionally a distributed external memory.
  • This computer processing means may be implemented by means of a computer microprocessor.
  • the computing device may be a part of a computing system like a workstation as a desktop personal computer or a laptop personal computer or equally suitable device or be implemented at a server device being located locally or remotely from the user.
  • Such system currently is applied for designing 3-dimensional models of buildings by means of the building information modeling software further referred to as 3-dimensional building model software, being a computer aided design software, which is widely used by many construction businesses — big and small — especially in the architecture, engineering and construction sector.
  • the outcome of the building design process using the Building information modeling (BIM) software is a Building Information Model also/further referred to as a three- dimensional model of a building.
  • This Building Information Modeling BIM is a digital representation of all the physical and functional characteristics of a building and may comprise information on geometry, used materials strengthcharacteristics thereof, used system set-ups, relation between building elements, cost and time, etc., for which the details can vary in amount and complexity, depending on the specific project, and phase in the project.
  • Such a 3-dimensional building model i.e., the BIM model is a shared knowledge source or file with information about the building that serves as a reliable basis for making decisions during the entire life cycle of the building.
  • the BIM model i.e. the three- dimensional building model such as a CAD computer file, is used from the first design, during construction, during management to the demolition of the building by the all-relevant parties as the basic information source and communication tool in their activities, e.g. to efficiently plan, design, construct, and manage buildings.
  • Such a BIM model (coming from the industry like architect or engineer) may be converted by custom software to a 3D printable model, which is then fed to the computing device for the factual printing of the constructive element according to embodiments of the present invention.
  • the Printing Device PD further comprises at least one filling nozzle FNi, ...FN X , configured to fill at least said first functional element of said constructive element, with a filling material selected from a from a plurality of filling materials.
  • a filling method is defined by parameters such as pressure, temperature, filling speed, nozzle shape, oscillation of the filling nozzle, etc.
  • a filling material is a material that is usable by means of a filling nozzle FN, where such filling material, for instance, has following properties such as a suitable value of viscosity, a suitable value of hardening time, a suitable value of Weight and/or a suitable value of abrasiveness, etc.
  • filling materials are EPS, concrete, PUR or natural insulating fibers like thatch and wool, self-reinforcing concrete, other cement mixtures, lime and stone mixtures, clay.
  • a processing means PRM receives instructions for the creation of a construction element CEL.
  • the PRM controls the selecting means (SEM) and the nozzle control means NCM.
  • the SEM in turn controls the material selecting means MSM.
  • the NCM controls the correct printing nozzle (PN) or filling nozzle FN1 ...FNx while the MSM supplies the material.
  • Figure 1 further shows control data flow such as control signals by means of a solid connection-line and material flows such a printing material and filling materials by means of a dashed connection line.
  • a constructive element CEL consists of various functional elements FEL.
  • Each functional element FEL fulfills a number of functional requirements FRE1 ,.,FRE6, as presented in Figure 2.
  • one printing method PME1 , ,.,PMEn is selected from a plurality of printing methods, as presented in Figure 3.
  • one printing material PMA1 is selected from a plurality of printing materials PMAs, as presented in Figure 4.
  • one filling material FMA1 ,..,FMAn is selected from a plurality of FMAs, as presented in Figure 5.
  • a functional element FEL is (a) printed using a printing method PME and a print material PMA1 , ,.,PMAn or (b) filled with a filling material FMA1 ,..,FMAn, as presented in Figure 6.
  • a constructive element such as a building or a part thereof, a vehicle like for example a boat or other design elements such as light fixtures and staircases
  • a constructive element for instance comprises three functional elements, FEL 1 , FEL2, FEL3, at first there is a first functional element such as a mold or support construction forming the outer structure of the constructive element.
  • the first functional element forms a rectangular shaped wall with openings for doors and windows.
  • Figure 7 shows a wall with adjacent door to be printed including the shown functional elements and requirements.
  • such first functional element could be a formwork to produce elements of a building such as a staircase, column or a beam.
  • the constructive element i.e., the building includes further functional elements such as a second functional element that is an insulating layer, a third functional element being a plaster layer mounted on top of the outer wall of the first functional element. Furthermore, the constructive element comprises a fourth functional element being a duct for pipes, a hollow space for wall box, tap for gas and/or water.
  • the optimum, appropriate or best suiting non-solid printing material can be selected from a plurality of non-solid printing materials to optimum support such functional element or functional requirement of the first functional element, i.e., the mold, the support structure of the said constructive element.
  • non- solid printing materials are PLA or PLA mixed with solid compounds like limestone, natural fibers (e.g. wood, flax) and liquid compounds like glycerin.
  • the processing means PRM based on a design of the first functional element that e.g., based on Building Information Modelling data is input to the processing means PRM
  • the inputting can be performed via a BIM file or alternatively be manually entered via a coupled display, mouse and keyboard.
  • the processing means PRM, PRM is configured to instruct, based on a design of the first functional element, i.e. the building, the nozzle control means NCM to drive the printing nozzle PN1 to print on a layer-by-layer basis, the meant constructive element using the selected first non-solid printing material being pure PLA and the first printing method, being a printing method with the appropriate combination between speed, pressure, heat, etc. for the chosen pure PLA material.
  • the selected first non-solid printing material is fed to the printing nozzle PN1 , from a silo SIM1 containing this the selected first non-solid printing material which is transported via a flexible hose coupling this first silo SIMi with the printing nozzle.
  • the first functional element subsequently is printed on a layer-by-layer basis, the meant constructive element using the selected first non-solid printing material being pure PLA and the first printing method.
  • the first functional element being the support structure of the said constructive element may comprise a spaced inner and outer wall.
  • the processing means PRM processes the data and derives instructions for the nozzle control means NCM to drive one of printing nozzles PNi, PN 2 ..PN X to print on a layer-by-layer basis, the meant second functional element, being an insulation layer on top of the mold, i.e. the first functional element, using the selected second non-solid printing material being for example being a foamed PLA and printing method being again the appropriate mix between speed, pressure, heat for this PLA type.
  • the insulation layer has a certain II value and additionally acoustic characteristics.
  • This second functional element being an insulating layer can be printed next the outer/inner wall of the first functional element.
  • the optimum, appropriate or best suiting non-solid printing material can be selected from a plurality of non-solid printing materials to optimum support such functional element or functional requirement of the second functional element, i.e., the insulation layer to be mounted against the inner wall of the first functional element being the support structure of the said constructive element.
  • a non limitative list of examples of such printing materials is as follows: insulating materials, concrete, biodegradable material such as PLA, PLA plus limestone or PLA mixed with solid compounds like limestone, natural fibers (wood, flax) and liquid compounds like glycerin. Plastics like recycled PVC, ABS, PETG and metals like steel, aluminum are further examples of such printing materials.
  • Each non-solid material that is selected having said characteristics, optimum supporting functional requirements of said second functional element of said constructive element where said non-solid printing material is selected based on said at least one functional requirement such as insulation value and a value of fire resistance, water and air tightness properties, weight, UV resistance of said second functional element of said constructive element, where these characteristics of the non-solid printing material optimum support the functional requirements of the second functional element.
  • foamed PLA is chosen for printing this second functional element.
  • PLA can be mixed with starch or other chemical compound to improve fire resistance (so focusing on the fire resistance).
  • a printing method supporting the insulation value of the second functional element and fire resistance is chosen being a printing method being again the appropriate mix between speed, pressure, heat for this foamed PLA type to obtain the desired functional requirements of the second functional element being the insulating value.
  • the selected second non-solid printing material is fed to the second printing nozzle PN2, from a second silo SIM2 that in turn contains the selected second non-solid printing material being foamed PLA which is transported via a flexible hose coupling this second silo SIM2 with the second printing nozzle.
  • the second functional element subsequently is printed on a layer-by-layer basis, the meant constructive element using the selected second non-solid printing material being foamed PLA and the suitable second printing method.
  • the Computer processing means PRM process the data and derives instructions for the nozzle control means NCM to drive one of printing nozzle PNi, PN 2 ..PN X to print on a layer-by-layer basis, the meant third functional element using the selected third non-solid printing material e.g. being PLA mixed with limestone where the printing method being the appropriate combination between speed, pressure, heat in the printing nozzle PN2..PNx.
  • the selected third non-solid printing material e.g. being PLA mixed with limestone where the printing method being the appropriate combination between speed, pressure, heat in the printing nozzle PN2..PNx.
  • This third functional element being a finishing layer such as a plaster layer mounted on top of the inner wall of the first functional element or on top of the insulating layer printed next the outer/inner wall of the first functional element.
  • the optimum, appropriate or best suiting non-solid printing material can be selected from a plurality of non-solid printing materials to optimum support such functional element or functional requirement of the third functional element, i.e., the finishing layer such as a plaster layer.
  • Each non-solid material that is selected having said characteristics, optimum supporting functional requirements of said third functional element of said constructive element where said non-solid printing material is selected based on said at least one functional requirement such as smoothness, texture, a value of fire resistance or water absorption properties (hygroscopic), flexibility (tendency to crack) of said third functional element of said constructive element, where these characteristics of the non-solid printing material optimum support the functional requirements of the third functional element.
  • PLA mixed with limestone or PLA mixed with natural fibers is chosen for printing this third functional element.
  • a printing method supporting the smoothness of the third functional element being the finishing layer such as a plaster layer fire resistance is chosen being a printing method applying the appropriate mix between speed, pressure, heat for this PLA mixed with limestone.
  • the selected third non-solid printing material is fed to the third printing nozzle PN 3 , from a third silo SIM 3 that in turn contains the selected second non-solid printing material being PLA mixed with limestone, which is transported via a flexible hose coupling this second silo SIM 3 containing the PLA mixed with limestone with the third printing nozzle PN 3 .
  • the third functional element subsequently is printed on a layer-by-layer basis, the meant constructive element using the selected third non-solid printing material being PLA mixed with limestone and the third printing method, being a printing method applying the appropriate mix between speed, pressure, heat for this PLA mixed with limestone.
  • the Printing Device PD further comprises at least one filling nozzle FNi,..FN x configured to fill at least said first functional element of said constructive element, with a filling material selected from a from a plurality of filling materials FMi, ...FM n .
  • the earlier constructed first functional element such as a mold comprising further functional elements and/or functional requirements is filled with the printing material having special specific characteristics supporting special characteristics of the constructive element in that the further material may provide isolating characteristics or strengthening the constructive element or both or provides with thermal insulation, acoustic insulation, provide water repellant characteristics or air tightness.
  • a filling method is defined by parameters such as pressure, temperature, filling speed, nozzle shape, oscillation of the filling nozzle, etc.
  • a filling material is a material that is usable by means of a filling nozzle FN, where such filling material, for instance, has following properties such as a suitable value of viscosity, a suitable value of hardening time, a suitable value of Weight and/or a suitable value of abrasiveness, etc.
  • filling materials are EPS, concrete, PUR or natural insulating fibers like thatch and wool, self-reinforcing concrete, other cement mixtures, lime and stone mixtures, clay.
  • the method for producing such a constructive element is advantageous in that it is enabled to integrate distinct elements, e.g. elements supporting electricity facilities, sanitary facilities, HVAC elements or further (functional) elements in a first phase, in such a constructive element and moreover integrate the earlier mentioned functional requirements of such functional elements of the constructive element in a same/single step of producing the first functional element such as a first functional element, such as a mold for the constructive element or a support structure of the constructive element, while at the same time or subsequently producing the additional functional elements and or functional requirements of the constructive element e.g. like a building.
  • distinct functional requirements can be obtained by a dedicated combination of a printing method and a non solid printing material characteristic.
  • a unique functional requirement of a functional element is obtained by the unique combination of printing method and nonsolid printing material.
  • first, the second third and further printing method may refer to different printing methods but not necessarily need to be different from each other.
  • first, the second third and further non-solid printing material may refer to different printing materials but not necessarily need to be different from each other.

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  • Chemical & Material Sciences (AREA)
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  • Optics & Photonics (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'impression associé pour produire un élément de construction comprenant une pluralité d'éléments fonctionnels, au moins un élément fonctionnel de ladite pluralité d'éléments fonctionnels dudit élément de construction étant caractérisé par au moins une exigence fonctionnelle, et ledit procédé comprenant les étapes consistant à imprimer, au moyen d'une buse d'impression, couche par couche, au moyen d'un premier matériau d'impression non solide et à l'aide d'un premier procédé d'impression, un premier élément fonctionnel de ladite pluralité d'éléments fonctionnels, ledit procédé comprenant en outre les étapes consistant à imprimer, au moyen d'une buse d'impression, couche par couche, au moyen d'un deuxième matériau d'impression non solide et à l'aide d'un procédé d'impression sélectionné, un deuxième élément fonctionnel de ladite pluralité d'éléments fonctionnels dudit élément de construction; ledit procédé comprenant en outre les étapes consistant à sélectionner ledit premier matériau d'impression non solide et sélectionner ledit premier procédé d'impression sur la base de ladite exigence fonctionnelle ou desdites exigences fonctionnelles dudit premier élément fonctionnel, chaque matériau d'impression non solide de ladite pluralité de matériaux d'impression non solides comprenant des caractéristiques distinctes, chaque caractéristique répondant à un besoin fonctionnel distinct dudit élément fonctionnel; et sélectionner ladite deuxième impression non solide et sélectionner ledit procédé d'impression sur la base d'au moins une exigence fonctionnelle dudit deuxième élément fonctionnel.
PCT/EP2025/070755 2024-07-19 2025-07-18 Procédé de production d'un élément de construction, dispositif d'impression associé et tête d'impression associée Pending WO2026017902A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP24189678 2024-07-19
EP24189678.6 2024-07-19

Publications (1)

Publication Number Publication Date
WO2026017902A1 true WO2026017902A1 (fr) 2026-01-22

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PCT/EP2025/070755 Pending WO2026017902A1 (fr) 2024-07-19 2025-07-18 Procédé de production d'un élément de construction, dispositif d'impression associé et tête d'impression associée

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204738415U (zh) * 2015-06-19 2015-11-04 马义和 一体化3d打印建筑墙体
US20170066186A1 (en) * 2014-02-21 2017-03-09 Laing O'rourke Australia Pty Limited Method for fabricating a composite construction element
WO2017181060A1 (fr) * 2016-04-14 2017-10-19 Branch Technology, Inc. Fabrication cellulaire et appareil de fabrication additive
EP3524746A1 (fr) * 2016-08-26 2019-08-14 Garcia Galadi, Irma Système pour la réalisation d'éléments résistants dans la construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170066186A1 (en) * 2014-02-21 2017-03-09 Laing O'rourke Australia Pty Limited Method for fabricating a composite construction element
CN204738415U (zh) * 2015-06-19 2015-11-04 马义和 一体化3d打印建筑墙体
WO2017181060A1 (fr) * 2016-04-14 2017-10-19 Branch Technology, Inc. Fabrication cellulaire et appareil de fabrication additive
EP3524746A1 (fr) * 2016-08-26 2019-08-14 Garcia Galadi, Irma Système pour la réalisation d'éléments résistants dans la construction

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