EP3946860A2 - Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion - Google Patents

Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion

Info

Publication number
EP3946860A2
EP3946860A2 EP20714564.0A EP20714564A EP3946860A2 EP 3946860 A2 EP3946860 A2 EP 3946860A2 EP 20714564 A EP20714564 A EP 20714564A EP 3946860 A2 EP3946860 A2 EP 3946860A2
Authority
EP
European Patent Office
Prior art keywords
extruder
strand
extruder head
building material
exit
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
EP20714564.0A
Other languages
German (de)
English (en)
Inventor
Tobias Huth
Knut Kasten
Werner Tausch
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.)
Putzmeister Engineering GmbH
Original Assignee
Putzmeister Engineering 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 Putzmeister Engineering GmbH filed Critical Putzmeister Engineering GmbH
Publication of EP3946860A2 publication Critical patent/EP3946860A2/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • B28B3/2681—Adjustable dies, e.g. for altering the shape of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/02—Small extruding apparatus, e.g. handheld, toy or laboratory extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/302—Extrusion nozzles or dies being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • E04G21/0463—Devices for both conveying and distributing with distribution hose with booms with boom control mechanisms, e.g. to automate concrete distribution
    • 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
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices

Definitions

  • the invention relates to an extruder head for the extrusion of a strand of building material for the 3D printing of a structural part, an extruder system with such an extruder head and the use of such an extruder head and / or such an extruder system.
  • the object of the invention is to provide an extruder head for the extrusion of a strand of building material for the 3D printing of a structural part, which has improved properties, in particular allows more freedom.
  • a further object of the invention is to provide an extruder system with such an extruder head and a use of such an extruder head and / or such an extruder system.
  • the invention solves this problem by providing an extruder head with the features of claim 1, an extruder system with the features of claim 11, claim 13 and / or claim 14 and a use with the features of claim 15.
  • Advantageous developments and / or Refinements of the invention are described in the dependent claims.
  • the extruder head according to the invention is designed or configured for the extrusion of a strand of building material for the 3D printing of an, in particular 3-dimensional, structural part.
  • the extruder head has an extruder nozzle, at least one specification element, in particular a shape specification element, and at least one, in particular controllable and / or electrical, adjusting device or adjusting device.
  • the extruder nozzle has an exit opening for the exit of the strand of building material from the extruder head, in particular the extruder nozzle, in an, in particular non-vertical, in particular horizontal, exit direction.
  • the at least one specification element is for the variable, in particular continuous, adjustable or adjustable specification, in particular shape specification, of at least one part, in particular an edge, of a strand cross-section, in particular an area of the strand cross-section, of the emerging, and in particular emerged, strand of building material, in particular during the exit of the strand of building material, in particular individually or separate, variable, in particular continuous, adjustable or adjustable, in particular movable, designed or configured or stored, in particular in at least two different settings.
  • the at least one setting device is designed or configured for, in particular automatic, variable, in particular continuous, setting or adjustment of the at least one specification element and is designed and arranged in such a way that the extruder head is in a first, in particular non-horizontal, in particular vertical, direction of extent or circumferential direction below the outlet opening at maximum opening height extends or expands by a maximum of the maximum opening height and / or in at least one second, in particular non-vertical, in particular horizontal, direction of extent or circumferential direction to the side of the outlet opening, which differs from the outlet direction maximum opening width extends or expands by the maximum opening width.
  • the extruder head in particular the extruder nozzle
  • the extruder head can be designed or configured for extrusion or for the exit of the strand of building material from the extruder head, in particular the extruder nozzle, in particular the outlet opening, in the non-vertical, in particular horizontal, exit direction.
  • the extruder head in particular the extruder nozzle
  • the extruder head for depositing the strand that has emerged can be designed in such a way that the strand, in particular the strand that has been deposited, maintains its strand cross-section, in particular the strand that has emerged.
  • the extruder head does not need or cannot be designed in such a way that the building material needs or can be pressed onto an already existing building material layer or layer and thus be deformed.
  • the strand in particular which has emerged, can be continuous or extend in, in particular, a certain length.
  • the building material can be concrete, in particular fresh concrete, and / or thixotropic and / or puncture-proof or dimensionally stable, in particular during the discharge. Furthermore, additionally or alternatively, the building material can have a maximum grain size of at least 4 millimeters (mm), in particular of a minimum of 10 mm, in particular of a minimum of 16 mm.
  • the strand can be deposited, in particular in layers, on a strand or an already extruded strand or can be applied and / or a further strand can be laid down or applied to the strand or strand, in particular in layers.
  • the structural part can be a building structural part and / or a wall and / or a ceiling. Additionally or alternatively, the strand, in particular a width of the strand, can have the, in particular the entire, wall and / or ceiling thickness.
  • the extruder nozzle in particular the outlet opening, can be tubular and / or, in particular by at least one circumferential wall, closed on the circumference, in particular in / against the at least one direction of extent. Additionally or alternatively, the extruder nozzle can have the outlet opening at one end, in particular at the front and / or front end. Furthermore, additionally or alternatively, the outlet opening can be referred to as a discharge opening or discharge opening. Furthermore, in addition or as an alternative, the outlet opening can be planar or even.
  • the, in particular maximum, opening height can be a minimum of 15 mm, in particular a minimum of 25 mm, and / or a maximum of 400 mm, in particular a maximum of 200 mm, in particular a maximum of 100 mm, in particular 50 mm, in particular in the first direction of extent.
  • the, in particular maximum, opening width can be a minimum of 100 mm, in particular a minimum of 200 mm, and / or a maximum of 800 mm, in particular a maximum of 600 mm, in particular 400 mm, in particular in the second direction of extent.
  • the outlet opening can have a quadrangular shape, in particular a trapezoidal shape, in particular a parallelogram shape, in particular a rectangular shape.
  • the extruder nozzle can predetermine the exit direction of the strand of building material from the extruder head, in particular the extruder nozzle, in particular the exit opening.
  • the exit direction can be parallel, in particular coaxial, to a longitudinal axis of the extruder nozzle.
  • the at least one specification element can be different from the extruder nozzle. Additionally or alternatively, the at least one specification element can be designed to be variably adjustable without tools.
  • the strand cross-section in particular a shape and / or a size of the strand cross-section, can correspond at least partially, in particular completely, to a flow cross-section, in particular a shape and / or a size of the flow cross-section, of building material within the extruder nozzle, in particular the same.
  • the strand cross-section, in particular a shape and / or a size of the strand cross-section, at least partially, in particular completely, an opening cross-section correspond in particular to a shape and / or a size of the opening cross section, the outlet opening, in particular an uncovered part of the outlet opening, in particular the same.
  • the strand cross-section and / or the flow cross-section and / or the opening cross-section can, in particular, be non-parallel, in particular orthogonal, to the exit direction.
  • the extruder head can extend on both, in particular opposite, sides of the outlet opening at a maximum opening width by a maximum of the maximum opening width. Additionally or alternatively, the extruder head can extend in the first direction of extent below the outlet opening at maximum opening height by a maximum of one half, in particular a quarter, in particular one eighth, of the maximum opening height and / or by 15 mm and / or laterally in the at least one second direction of extent of the outlet opening at the maximum opening width by a maximum of one half, in particular one quarter, in particular one eighth, of the maximum opening width and / or by 100 mm.
  • the first direction of extent can be orthogonal to the exit direction and / or the second direction of extent can be orthogonal to the exit direction and / or the first direction of extent.
  • the extruder nozzle can have at least one circumferential wall.
  • the extension of the extruder head in the first extension direction can be defined or limited by the peripheral wall.
  • the outlet opening can be defined or limited on the circumferential side, in particular at least partially, in particular in the first direction of extent, by the circumferential wall.
  • the extruder head does not need or cannot extend in the first direction of extent below and / or in the at least one second direction of extent to the side of the extruder nozzle, in particular the outlet opening.
  • This in particular the at least one specification element, enables different strand cross-sections, in particular different shapes and / or sizes of the strand cross-section or the strand cross-sections.
  • this can be the implementation of different wall and / or ceiling thicknesses, in particular with a transition without a shoulder, and / or the printing of the structural part with slots, holes or channels, in particular for lines or cables and / or pipes or for media such as Electricity and / or water.
  • they do not need to be produced after printing, in particular laboriously, if this can be done at all with reasonable effort, especially by workers.
  • this enables the extrusion of the strand, in particular in the horizontal exit direction, relatively close, in particular vertically, above an already extruded strand, in particular without damaging it, and thus a depositing of the emerging, in particular emerged, strand from a relatively low altitude. Additionally or alternatively, this enables, in particular the extension to the side of the outlet opening, the extrusion of the strand, in particular in the horizontal exit direction, relatively close, in particular horizontally, to the side of an already extruded strand, in particular without damaging it, and thus a depositing of the exiting strand, in particular well-worn, strand from a relatively low height.
  • the extruder head has improved properties, in particular allows more freedom.
  • the at least one setting device has at least one, in particular electric and / or hydraulic and / or pneumatic, setting motor or adjusting motor.
  • the at least one setting motor is designed or configured for the, in particular automatic, variable, in particular continuous, setting or adjustment of the at least one specification element.
  • the at least one adjusting motor is arranged opposite the first direction of extent above, opposite to the exit direction behind and / or opposite to the at least one second direction of extent to the side of the extruder nozzle.
  • the extruder nozzle has a taper from the outlet opening at maximum opening height and / or maximum opening width opposite to the outlet direction counter to the first and / or at least one second extension direction.
  • the at least one adjusting motor is arranged below and / or to the side of the extruder nozzle at the taper.
  • the at least one adjustment device has at least one movement deflection mechanism, in particular at least one lever mechanism and / or at least one belt, chain and / or gear mechanism.
  • the at least one setting motor is movement-connected or operatively connected to the at least one specification element by means of the at least one movement deflection mechanism.
  • the at least one adjusting device has at least one linear drive, in particular a threaded spindle drive, and / or at least one Rotary drive or swivel drive on.
  • the at least one setting motor is movement-connected or operatively connected to the at least one specification element by means of the at least one linear drive and / or by means of the at least one rotary drive.
  • the at least one movement deflection mechanism and / or the at least one linear drive and / or the at least one rotary drive in particular in each case, can be designed or configured for, in particular automatic, variable, in particular continuous, adjustment or adjustment of the at least one specification element.
  • the extruder nozzle has several peripheral walls.
  • the peripheral walls define or limit the outlet opening on the peripheral side.
  • the at least one specification element has at least one of the peripheral walls.
  • the at least one circumferential wall is for the variable, in particular continuous, adjustable or adjustable definition or delimitation of an outer edge or outer part of an, in particular shaping, flow or flow cross-section, in particular an area of the flow cross-section, of building material within the extruder nozzle for variable, in particular continuous, adjustable or adjustable specification, in particular shape specification, of an outer edge or outer part of the strand cross-section, in particular an area of the strand cross-section, in particular during the exit of the strand of building material, in particular individually or separately, variable, in particular continuously, adjustable or adjustable, in particular movable, embodied or configured or supported, in particular in / against the first direction of extent and / or the second direction of extent.
  • at least one of the peripheral walls can be planar or flat and / or a sheet metal.
  • the extruder head has an expandable, in particular elastic, hose.
  • the expandable hose is arranged and designed to seal against the peripheral leakage of building material.
  • the hose can consist partially or even entirely of rubber.
  • the at least one specification element has at least one inner element.
  • the at least one inner element is for variably, in particular continuously, adjustable or adjustable, in particular complete, arrangement within the extruder nozzle for the variable, in particular continuous, adjustable or adjustable definition or limitation, in particular at least one inner edge or inner part of one, in particular the and / or shaping, flow or Flow cross-section, in particular an area of the flow cross-section, of building material within the extruder nozzle for the variable, in particular continuous, adjustable or adjustable specification, in particular shape specification, in particular at least one inner edge or inner part of the strand cross-section, in particular an area of the strand cross-section, in particular during the exit of the Strand of building material, in particular individually or separately, variable, in particular continuously, adjustable or adjustable, in particular movable, formed or configured or mounted, in particular in / against the first direction of extent and / or the second direction of extent.
  • the at least one inner element can be different from the extruder nozzle.
  • the at least one inner element can, in particular either, be arranged at a distance from the outlet opening, in particular a maximum of 50 mm, in particular a maximum of 20 mm, in particular a maximum of 10 mm, or upstream or upstream of the outlet opening, in particular against the outlet direction, or extend, in particular at most up to the outlet opening.
  • the at least one inner element can, in particular at least partially, be arranged at a distance from the extruder nozzle or at least one circumferential wall of the extruder nozzle, in particular in / against the at least one extension direction.
  • the at least one inner element can extend from the extruder nozzle or at least one circumferential wall of the extruder nozzle, in particular orthogonally, in particular in / against the at least one direction of extension and / or inward.
  • the flow cross-section in particular an area of the flow cross-section, can be a minimum of 5 percent (%), in particular a minimum of 10%, in particular a minimum of 20%, in particular a minimum of 50%, smaller than a nozzle cross-section of the extruder nozzle, in particular an opening cross-section of the outlet opening, in particular be a surface of the nozzle cross-section or the opening cross-section, in particular without an inner element.
  • the inner edge can be different from the outer edge, if present.
  • the at least one inner element enables the flow cross-section, in particular a different shape and / or, that deviates from a nozzle cross-section of the extruder nozzle, in particular an opening cross-section of the outlet opening, in particular a shape and / or a size of the nozzle cross-section or the opening cross-section, in particular without an inner element a different size of the flow cross section, and thus the different strand cross section, in particular a different shape and / or a different size of the strand cross section.
  • the at least one specification element has at least one cover element.
  • the at least one cover element is for variably, in particular continuously, adjustable or adjustable covering, in particular at least and / or only part of the outlet opening for variably, in particular continuously, adjustable or adjustable specification, in particular shape specification, at least one part or edge, in particular an outer part or an inner part of the strand cross section, in particular an area of the strand cross section, through at least one uncovered part of the outlet opening, in particular an opening cross section of the outlet opening, in particular an area of the opening cross section, in particular during the exit of the strand of building material, in particular individually or separately , variable, in particular continuously, adjustable or adjustable, in particular movable, designed or configured, in particular in / against the first direction of extent and / or the second direction of extent.
  • the at least one cover element can be referred to as a panel or template. Additionally or alternatively, the at least one cover element can be different from the extruder nozzle. Furthermore, additionally or alternatively, the at least one cover element can be planar or flat. Furthermore, additionally or alternatively, a, in particular a maximum, ratio between the at least one covered part and the at least one uncovered part can be a minimum of 0.05, in particular a minimum of 0.1, in particular a minimum of 0.2, in particular a minimum of 0.5, in particular a minimum of 1, be. In particular, the at least one cover element can be designed to completely cover the outlet opening.
  • the at least one covered part can have a quadrangular shape, in particular a trapezoidal shape, in particular a parallelogram shape, in particular a rectangular shape, and / or a circular segment shape, in particular a circular shape, and / or a triangular shape and / or a comb shape.
  • This, in particular the at least one cover element, enables the opening cross section deviating from the outlet opening and thus the strand cross section deviating from the outlet opening.
  • the at least one cover element for separating, in particular for cutting off, the escaped strand of building material from the extruder head, in particular from the extruder nozzle, in particular at the outlet opening is variably adjustable. This can enable an, in particular clean or smooth, end of the strand, in particular that has emerged and / or deposited, in particular after the extrusion process, in particular when moving the extruder head, especially between different wall elements. Additionally or alternatively, the at least one cover element can be designed to move along the outlet opening for separation.
  • an extension or expansion of the extruder head in one, in particular horizontal, direction, in particular in the exit direction, in particular forward can be defined or limited by the at least one cover element. This enables an, in particular clean or smooth, separation and / or, in particular clean, laying down of the strand that has emerged and / or an, in particular clean or smooth, connection of the strand to an already extruded strand, in particular without damaging it.
  • the extruder nozzle has several peripheral walls.
  • the peripheral walls define or limit the outlet opening on the peripheral side.
  • At least one of the circumferential walls is designed or configured or mounted for circumferential unfolding, in particular in or against the first direction of extent, in particular movable. This enables simple assembly of the expandable hose, if present, and / or simple cleaning of the extruder head after extrusion, in particular after concreting.
  • the extruder head has a deflection device or a deflection element.
  • the deflecting device is arranged upstream or upstream of the outlet opening, in particular the extruder nozzle, and for deflecting a flow or a flow of building material, in particular from a non-horizontal, in particular vertical, direction, in particular in the first direction of extent, in particular from above downwards, in the direction, in particular in the exit direction, in particular from the rear to the front, of the exit opening.
  • This, in particular the deflection device, enables the horizontal exit.
  • the extruder system according to the invention is designed or configured for the extrusion of one, in particular the, strand of building material for the 3D printing of one, in particular the, structural part.
  • the extruder system has an, in particular the, extruder head as described above.
  • the extruder system has a, in particular controllable, movement device.
  • the movement device is for, in particular automatic, at least translational movement of the extruder head, in particular the extruder nozzle, the at least one specification element and the at least one adjusting device, in particular during the exit of the strand of building material, formed or configured.
  • the movement device can be referred to as a positioning device.
  • the movement device can have or be a movement or robot arm or a mast.
  • the movement device and / or the extruder head can be designed for, in particular automatic, rotational movement of the extruder head, in particular the extruder nozzle, the at least one specification element and the at least one setting device, in particular during the exit of the strand of building material.
  • the movement device is designed or configured to move the extruder head in a direction of movement, in particular non-vertical, in particular horizontal.
  • the extruder head is designed or configured for the exit of the strand of building material from the extruder head, in particular the extruder nozzle, in particular the outlet opening, in the exit direction which is non-orthogonal to the direction of movement, in particular reverse, in particular opposite, exit direction, in particular during the movement.
  • the extruder system in particular the extruder head, is designed or configured for the exit of the strand of building material from the extruder head, in particular the extruder nozzle, in particular the outlet opening, with an, in particular variable, in particular continuous, adjustable or adjustable exit speed.
  • the movement device is designed or configured to move the extruder head at a movement speed approximately equal to the exit speed, in particular during the exit.
  • the extruder system according to the invention has a, in particular controllable, building material pump.
  • the building material pump is designed or configured for, in particular automatically, conveying building material out of the extruder head, in particular the extruder nozzle, in particular the outlet opening.
  • the extruder system can have a building material delivery line, the building material delivery line being able to connect the building material pump to the extruder head, in particular the extruder nozzle, for a flow or flow of building material from the building material pump through the building material delivery line to the extruder head, in particular the extruder nozzle.
  • the building material pump can be discontinuous, in particular a piston pump, in particular a two-piston pump, in particular with a transfer tube.
  • the extruder system has an, in particular electrical, control device, in particular a computer.
  • the control device is for the, in particular automatic and / or independent, control of the at least one, in particular controllable, setting device and / or the, in particular controllable, movement device and / or the, in particular controllable, building material pump as a function of data, in particular a building or construction pump.
  • the invention relates to the use of one, in particular the, extruder head and / or one, in particular the, extruder system as described above for the extrusion of one, in particular the, strand of building material for the 3D printing of one, in particular the, structural part.
  • FIG. 1 shows a perspective view of an extruder system according to the invention with an extruder head according to the invention
  • FIG. 2 shows a further perspective view of the extruder system with the extruder head of FIG. 1
  • 3 is a front view of the extruder system with the extruder head of FIG. 1 with at least one peripheral wall in a first setting, at least one inner element in a first setting and at least one cover element in a second setting,
  • FIG. 4 shows a side view of the extruder system with the extruder head of FIG. 3,
  • FIG. 5 shows a front view of the extruder system with the extruder head from FIG. 1 with the at least one peripheral wall in the first setting, the at least one inner element in a second setting and the at least one cover element in a first setting without an upper peripheral wall and without a hose,
  • FIG. 6 is a perspective view of the extruder system with the extruder head of FIG.
  • FIG. 7 shows a front view of the extruder system with the extruder head from FIG. 1 with the at least one peripheral wall in a second setting and the at least one inner element in the first setting without an upper peripheral wall, without a hose and without a cover element,
  • FIG. 8 is a perspective view of the extruder system with the extruder head of FIG.
  • FIG. 9 shows a side view of the extruder system with the extruder head from FIG. 1 with the at least one cover element in the first setting
  • FIG. 10 is a perspective view of the extruder system with the extruder head of FIG.
  • FIG. 11 shows a front view of the extruder system with the extruder head from FIG. 1 with the at least one peripheral wall in the second setting, the at least one inner element in the first setting and the at least one cover element in a third setting
  • FIG. 12 is a perspective view of the extruder system with the extruder head of FIG.
  • FIG. 13 is a perspective view of the extruder system with the extruder head of FIG.
  • FIG. 14 is a perspective view of the extruder system with the extruder head of FIG.
  • Extruder head and / or an extruder system according to the invention 3D-printed structural parts made from extruded strands of building material,
  • Fig. 16 is a perspective view of another according to the invention.
  • FIG. 17 shows a side view of the extruder system with the extruder head of FIGS. 16, and
  • Fig. 18 is a perspective view of still another according to the invention.
  • the extruder head 1 has an extruder nozzle 5, at least one setting element 7a, 7b, 8, 8a, 8b, 30a, 30b and at least one, in particular controllable, adjusting device 213, 217a, 217b, 218a, 218b.
  • the extruder nozzle has an, in particular rectangular, exit opening 2 for the exit of the strand ST of building material BS from the extruder head 1 in an, in particular horizontal, exit direction x.
  • the at least one specification element 7a, 7b, 8, 8a, 8b, 30a, 30b is designed to be variably adjustable for the variably adjustable specification of at least one part 4A, 4I of an in particular rectangular, strand cross-section 4 of the emerging strand ST of building material BS.
  • the at least one Adjusting device 213, 217a, 217b, 218a, 218b is designed for the variable adjustment of the at least one specification element 7a, 7b, 8, 8a, 8b, 30a, 30b.
  • the at least one adjusting device 213, 217a, 217b, 218a, 218b is designed and arranged in such a way that the extruder head 1 extends in a first, in particular vertical, direction of extension -z below the outlet opening 2 at a maximum opening height HO, which is different from the outlet direction x extends around the maximum opening height HO and / or extends in at least one second, in particular horizontal, direction of extent -y, y, which differs from the exit direction x, to the side of the exit opening 2 at a maximum opening width BO by a maximum of the maximum opening width BO.
  • the extruder head 1 extends in the first direction of extent -z below the outlet opening 2 at maximum opening height HO by a maximum of one half of the maximum opening height HO.
  • the extruder nozzle 5 has at least one, in particular lower, circumferential wall 7c.
  • the extension of the extruder head 1 in the first extension direction -z is defined by the, in particular the lower, peripheral wall 7c.
  • the outlet opening 2 is partially defined on the circumference, in particular in the first direction of extent -z, by the, in particular lower, circumferential wall 7c.
  • the extruder head 1 extends in the at least one second direction of extension -y, y to the side of the outlet opening 2 with the maximum opening width BO by a maximum of one half of the maximum opening width BO.
  • the extruder head 1 extends on both sides of the outlet opening 2 at a maximum opening width BO by a maximum of the maximum opening width BO.
  • the extruder head can only extend by a maximum of the maximum opening width on one side of the outlet opening with the maximum opening width and extend further than the maximum opening width on another side of the outlet opening, in particular with the maximum opening width.
  • the extruder nozzle 5 has several circumferential walls 7a, 7b, 7c, 7d, four in the exemplary embodiments shown.
  • the circumferential walls 7a, 7b, 7c, 7d define the outlet opening 2 on the circumferential side.
  • the at least one specification element has at least one, in the exemplary embodiment shown two, of the peripheral walls 7a, 7b.
  • the at least one circumferential wall 7a, 7b is for the variably adjustable definition of an outer edge 35A of an, in particular rectangular, flow cross section 35 of building material BS inside of the extruder nozzle 5 for the variably adjustable presetting of an outer edge 4A of the strand cross-section 4, in particular during the exit of the strand ST of building material BS, designed to be variably adjustable.
  • one, in particular left, circumferential wall 7a and one, in particular right, circumferential wall 7b, in particular in each case, can be variably set for the variable setting of a width of the flow cross section 35 for the variable setting of a width of the strand cross section 4 or an opening width BO of the outlet opening 2 formed, in particular movable in / against the second direction of extent -y, y.
  • one, in particular lower, circumferential wall and / or one, in particular upper, circumferential wall, in particular in each case, can be designed to be variably adjustable for the variable setting of a height of the flow cross-section for the variable setting of a height of the strand cross-section or the opening height of the outlet opening , in particular movable in / against the first direction of extent.
  • the two circumferential walls 7a, 7b are arranged maximally outside or maximally apart from one another in such a way that the width of the flow cross section 35 and thus the width of the strand cross section 4 or the opening width BO the outlet opening 2 is set to a maximum or width, in the exemplary embodiments shown 400 mm.
  • the two circumferential walls 7a, 7b are arranged maximally inside or minimally apart or maximally close to one another in such a way that the Width of the flow cross section 35 and thus the width of the strand cross section 4 or the opening width BO of the outlet opening 2 is set to be minimal or narrow, in the exemplary embodiments shown 200 mm.
  • an opening height HO of the outlet opening 2 is 50 mm, in particular in the first direction of extent -z.
  • the extruder head 1 has a hose 40 that can be stretched, in particular by a factor of approximately 2, the stretchable hose 40 being arranged and designed to seal the peripheral walls 7a, 7b, 7c, 7d against the peripheral escape of building material BS, as shown in FIG 10 shown.
  • at least one of the circumferential walls 7c, 7d, two in the exemplary embodiments shown, is designed for circumferential opening, as shown in FIG. 10.
  • one, in particular lower, circumferential wall 7c and one, in particular upper, circumferential wall 7d, in particular in each case, are designed for circumferential opening, in particular movable in / against the first direction of extent - z, z.
  • one, in particular left, circumferential wall and / or one, in particular right, circumferential wall, in particular in each case can be designed for circumferential opening, in particular movable in / against the second direction of extent.
  • the at least one specification element has at least one inner element 30a, 30b.
  • the at least one inner element 30a, 30b is for variably adjustable arrangement within the extruder nozzle 5 for variably adjustable definition, in particular at least one inner edge 35I of the flow cross-section 35 of building material BS within the extruder nozzle 5 for variably adjustable specification, in particular at least one inner edge 4I of the strand cross-section 4, in particular during the exit of the strand ST of building material BS, designed to be variably adjustable, in particular movable relative to the extruder nozzle 5, in particular in / against the second direction of extent -y, y.
  • the at least one inner element can additionally or alternatively be movable in / against the first direction of extent.
  • the at least one specification element has, in particular precisely, two inner elements 30a, 30b. In alternative exemplary embodiments, the at least one specification element, in particular only one or at least three inner elements.
  • the at least one inner element 30a, 30b in a first, in particular inner, setting, in particular no inner edge of the flow cross section 35 and thus no inner edge of the strand cross section 4, as in FIGS. 7, 8, 11 and 12 and FIG. 15 a), b) below and above, c) below and above, d) below and e) below and in the middle.
  • the at least one inner element 30a, 30b in a second, in particular outer, setting is divided into two with an, in particular rectangular, interruption 4U, in particular in one, in particular horizontal, direction, in particular in the second direction of extent -y, in particular of the flow cross-section 35, and thus of the strand cross-section 4, as shown in FIGS. 5 and 6 and FIG. 15 b) in the middle, c) in the middle, d) in the middle and above, and e) above.
  • the interruption 4U is completely above the, in particular maximum, opening height HO of the outlet opening 2.
  • the interruption can, in particular only partially, be above the, in particular maximum, opening height of the outlet opening.
  • the two inner elements 30a, 30b are designed to be adjustable in relation to one another for the variable adjustment of the inner edge 35I of the flow cross-section 35, in particular in the first setting and the second setting.
  • the two inner elements 30a, 30b are arranged close to one another in the first setting or are in contact with one another.
  • the two inner elements 30a, 30b do not predetermine an inner edge of the flow cross section 35, in particular close to or in the area of the outlet opening 2, and thus no inner edge of the strand cross section 4.
  • the flow cross section 35 without an inner edge, in particular close to or in the area of the outlet opening 2 specifies the strand cross section 4 without an inner edge.
  • the two inner elements 30a, 30b in particular partially or with the ends on the outlet opening side, are arranged at a distance from one another in the second setting, in particular in / against the second direction of extension -y, y.
  • the two inner elements 30a, 30b give a dichotomy with an, in particular rectangular, interruption 35U, in particular in one, in particular horizontal, direction, in particular in the second direction of extent -y, of flow cross section 35, in particular close to or in Area of the outlet opening 2, and thus the division into two with the interruption 4U of the strand cross-section 4.
  • the two-part flow cross-section 35 with the interruption 35U in particular close to or in the area of the outlet opening 2, specifies the two-part strand cross-section 4 with the interruption 4U.
  • the at least one inner element 30a, 30b in particular in each case, has a particularly planar or even, flow-directing surface 31a, 31b for directing the flow or flow-directing surface for directing the flow of building material BS within the extruder nozzle 5 to define the inner edge 35I of the flow cross-section 35.
  • The, in particular at least one, flow deflection surface 31a, 31b is to the non-orthogonal, in particular designed for parallel alignment with the exit direction x, in particular aligned in the exemplary embodiments shown.
  • the at least one inner element 30a, 30b in particular in each case, is an, in particular planar or level, inner wall 32a, 32b, in particular a sheet metal.
  • the at least one inner element 30a, 30b is designed, in particular arranged, for arrangement within the hose 40.
  • the at least one specification element has at least one, in particular rectangular, cover element 8, 8a, 8b.
  • the at least one cover element 8, 8a, 8b is for the variably adjustable covering of at least one part 2a of the outlet opening 2 for the variably adjustable specification of at least one part 4A, 4I, in particular the outer edge 4A and / or the inner edge 4I, of the strand cross-section 4 by at least one uncovered one Part 2b of the outlet opening 2, in particular an opening cross-section 3 of the outlet opening 2, in particular during the exit of the strand ST of building material BS, designed to be variably adjustable, in particular movable relative to the outlet opening 2 or the extruder nozzle 5, in particular in / against the first direction of extent - z, z and / or second extension direction -y, y.
  • the at least one specification element has, in particular precisely, two, in particular rectangular, cover elements 8a, 8b.
  • the at least one specification element has, in particular precisely, one, in particular rectangular, cover element 8.
  • the at least one specification element can have at least three cover elements.
  • the at least one cover element 8a, 8b for covering the, in particular at least one, part 2a of the outlet opening 2 is designed such that the opening cross section 3 is at least divided into two with an interruption 3U, in particular in one, in particular horizontal, direction, in particular in the second direction of extent -y.
  • the interruption 3U can be completely above the, in particular the maximum, opening height HO.
  • the at least one cover element 8, 8a, 8b for separating, in particular for cutting off, the escaped strand ST of building material BS from the extruder head 1, in particular at the outlet opening 2, is variably adjustable.
  • the at least one cover element 8, 8a, 8b has a cutting plate or a blade 8K, 8aK, 8bK.
  • the at least one cover element 8, 8a, 8b is designed for arrangement at the outlet opening 2, in particular in contact with the extruder nozzle 5. This enables an unintentional escape of building material at an unintended location and / or in / against the first direction of extent and / or the second direction of extent out of the extruder head, in particular the extruder nozzle, to be reduced or even avoided.
  • the two cover elements 8a, 8b are arranged on the outlet opening 2 and cover an, in particular inner and / or rectangular, part 2a of the outlet opening 2 in such a way that the opening cross section 3, in particular rectangular and , divided in two with an, in particular rectangular, interruption 3U, in particular in the second direction of extent -y.
  • the cover elements 8a, 8b overlap or are pushed over one another in the exit direction x.
  • the two-part, in particular rectangular, opening cross-section 3 with the, in particular rectangular, interruption 3U specifies the two-part, in particular rectangular, strand cross-section 4 with an, in particular, rectangular, interruption 4U of the, in particular, leaked, strand ST of building material BS.
  • the two cover elements 8a, 8b are arranged on the outlet opening 2 and cover two, in particular outer and / or rectangular, parts 2a of the outlet opening 2 in such a way that the opening cross section 3, in particular rectangular and narrow, in particular in the second direction of extent -y.
  • a, in particular an inner, part 2b of the outlet opening 2 is not covered.
  • the narrow, in particular rectangular, opening cross section 3 thus defines the narrow, in particular rectangular, strand cross section 4 of the strand ST of building material BS, which has in particular emerged.
  • the cover element 8 is arranged on the outlet opening 2 and completely covers the outlet opening 2.
  • the cover element 8 is raised counter to the first direction of extent z, to that shown in FIGS 17, in particular in the first direction of extent -z, the strand ST of building material BS, in particular which has emerged, is separated from the extruder head 1.
  • the at least one cover element 8, 8a, 8b has at least one, in particular planar or even, cover surface 8F, 8aF, 8bF for partially covering the outlet opening 2.
  • the at least one cover surface 8F, 8aF, 8bF is designed for non-parallel, in particular for orthogonal, alignment to the exit direction x. This enables building material to be blocked behind the, in particular at least one, cover element in the extruder nozzle opposite to the exit direction.
  • an extension of the extruder head 1 in one, in particular horizontal, direction, in particular in the exit direction x, is defined by the at least one cover element 8, 8a, 8b.
  • the extruder head 1 also has a deflection device 9.
  • the deflection device 9 is arranged upstream of the outlet opening 2 and is designed to deflect a flow of building material BS, in particular a pipe flange 45, in the direction, in particular in the outlet direction x, of the outlet opening 2.
  • the deflecting device 9 has a fishhook shape, in particular deviating from an “L”.
  • the deflecting device 9 is shaped or designed in such a way that the pipe flange 45 is arranged centrally in / against the exit direction x, -x, and in particular in / against the second extension direction -y, y, of the extruder head 1.
  • the at least one setting device 213, 217a, 217b, 218a, 218b has at least one, in particular electric, setting motor 213E, 217aE, 217bE, 218aE, 218bE.
  • the at least one setting motor 213E, 217aE, 217bE, 218aE, 218bE is designed for the variable setting of the at least one specification element 7a, 7b, 8, 8a, 8b, 30a, 30b.
  • the at least one setting motor 213E, 217aE, 217bE, 218aE, 218bE is arranged above the extruder nozzle 5 counter to the first direction of extent z, behind the extruder nozzle 5 counter to the exit direction -x and / or counter to the at least one second direction of extent y, -y.
  • the extruder nozzle 5 has a taper 5V from the outlet opening 2 at maximum opening width BO opposite to the outlet direction -x, opposite to the at least one second extension direction y, -y.
  • the at least one adjusting motor 217aE, 217bE is arranged to the side of the extruder nozzle 5 at the taper 5V.
  • the extruder nozzle can additionally or alternatively have a taper from the outlet opening at the maximum opening height counter to the outlet direction opposite to the first direction of extent, wherein the at least one adjusting motor can be arranged below the extruder nozzle at the taper.
  • the at least one adjusting device 213, 217a, 217b, 218b has at least one movement deflection mechanism 213U, 217aU, 217bU, 218bU, in particular at least one lever mechanism and / or at least one belt, chain and / or gear mechanism.
  • the at least one setting motor 213E, 217aE, 217bE, 218bE is movement-connected to the at least one specification element 7a, 7b, 8a, 8b, 30a, 30b by means of the at least one movement deflection mechanism.
  • the at least one adjusting device 213, 217a, 217b, 218a, 218b has at least one linear drive 213L, 217aL, 217bL, 218bL, in particular a threaded spindle drive, and / or at least one rotary drive 218aD.
  • the at least one setting motor 213E, 217aE, 217bE, 218aE, 218bE is connected to the at least one setting element 7a, 7b, 8, 8a, 8b, by means of the at least one linear drive 213L, 217aL, 217bL, 218bL and / or by means of the at least one rotary drive 218aD, 30a, 30b movement-related.
  • FIGS. 1 to 12 show the at least one adjusting motor 217aE, 217bE for moving the at least one peripheral wall 7a, 7b, in particular in / against the second Extension direction -y, y, opposite to the first extension direction z above the extruder nozzle 5 or the circumferential wall 7d, in particular transversely.
  • the at least one adjusting device 217a, 217b for moving the at least one circumferential wall 7a, 7b, in particular in / counter to the second direction of extension -y, y has at least one movement deflection mechanism 217aU, 217bU, in particular one
  • Lever mechanism in particular with a bilateral and / or straight lever, and / or at least one, in particular mechanical, linear drive 217aL, 217bL, in particular at least one threaded spindle drive.
  • the at least one adjusting motor 217aE, 217bE is movably connected to the at least one circumferential wall 7a, 7b by means of the at least one movement deflection mechanism 217aU, 217bU and / or the at least one linear drive 217aL, 217bL.
  • FIG. 18 shows the at least one adjusting motor 271aE, 217bE for moving the at least one peripheral wall 7a, 7b, in particular in / against the second direction of extension -y, y, to the side of the extruder nozzle 5 or the at least one peripheral wall 7a, 7b during the tapering 5V, especially longitudinally, arranged.
  • the at least one adjusting device 217a, 217b for moving the at least one circumferential wall 7a, 7b, in particular in / against the second direction of extension -y, y has at least one movement deflection mechanism 217aU, 217bU, in particular a lever mechanism, in particular a straight lever, and / or at least one, in particular mechanical, linear drive 217aL, 217bL, in particular at least one threaded spindle drive.
  • the at least one adjusting motor 217aE, 217bE is movably connected to the at least one circumferential wall 7a, 7b by means of the at least one movement deflection mechanism 217aU, 217bU and / or the at least one linear drive 217aL, 217bL.
  • the two circumferential walls 7a, 7b are designed to be separately or individually or separately variably adjustable.
  • the two circumferential walls cannot be designed to be variably adjustable separately from one another.
  • the adjusting motor 213 for moving the at least one inner element 30a, 30b, in particular in / against the second direction of extension -y, y, against the exit direction -x is arranged behind the extruder nozzle 5, and in particular the deflection device 9.
  • the adjusting device 213 has at least one movement deflection mechanism 213U, in particular at least one lever mechanism, in particular a toggle lever, and / or one, in particular mechanical, for moving the at least one inner element 30a, 30b, in particular in / against the second direction of extent -y, y Linear drive 213L, in particular a threaded spindle drive.
  • the adjusting motor 213E is movably connected to the at least one inner element 30a, 30b by means of the at least one movement deflection mechanism 213U and / or the linear drive 213L.
  • the spindle in particular in the deflection device 9, is protected from the surrounding building material flow by means of a pipe.
  • the two inner elements 30a, 30b are not designed to be separate from one another or to be individually or separately variably adjustable.
  • the two inner elements, in particular each, can be designed to be individually variably adjustable.
  • the adjusting motor 218aE for moving the at least one cover element 8a, 8b, in particular in / against the first direction of extension -z, z, against the first direction of extension z is arranged above the extruder nozzle 5 or the peripheral wall 7d.
  • the adjustment device 218a has for moving the at least one cover element 8a, 8b, in particular in / against the first
  • Extension direction -z, z an, in particular mechanical, rotary drive 218aD.
  • the setting motor 218aE is movably connected to the at least one cover element 8a, 8b by means of the rotary drive 218aD.
  • the adjusting motor 218bE for moving the at least one cover element 8a, 8b, in particular in / against the second direction of extension -y, y, against the first direction of extension z is arranged above the extruder nozzle 5 or the circumferential wall 7d.
  • the adjustment device 218b has for moving the at least one cover element 8a, 8b, in particular in / against the second
  • the adjusting motor 218bE is movably connected to the at least one cover element 8a, 8b by means of the movement deflection mechanism 218bU and / or the linear drive 218bL.
  • the adjusting motor for moving the at least one cover element, in particular in / against the second direction of extent can be arranged to the side of the extruder nozzle, counter to the second direction of extent.
  • the adjustment device for moving the at least one cover element, in particular in / against the second direction of extent can have a, in particular mechanical, Have linear drive, in particular a threaded spindle drive.
  • the setting motor can be movably connected to the at least one cover element by means of the linear drive.
  • the two cover elements 8a, 8b are not designed to be separated from one another or to be individually or separately variably adjustable.
  • the two cover elements, in particular each, can be designed to be individually variably adjustable.
  • the at least one adjusting motor 218aE for moving the at least one cover element 8a, 8b, in particular in / against the first direction of extension -z, z, against the first direction of extension z is arranged above the extruder nozzle 5 or the peripheral wall 7d.
  • the adjusting device 218b for moving the at least one cover element 8a, 8b, in particular in / against the second direction of extension -y, y has at least one, in particular mechanical, linear drive 218aL, in particular at least one threaded spindle drive.
  • the at least one setting motor 218aE is movably connected to the cover element 8 by means of the at least one linear drive 218aL.
  • the extruder head 1 has a particularly controllable and / or electrical vibrating device 25, as shown in FIGS. 16 and 17.
  • the vibrating device 25 is designed to vibrate or excite the cover element 8, in particular automatically. This makes it possible to loosen or displace stones in the concrete, in particular behind the, in particular at least one, cover element, and thus to reduce or even avoid the risk of blocking by stones in the concrete, in particular behind the, in particular at least one, cover element, especially for separation.
  • the vibrating device 25 has an eccentric.
  • the vibrating device can additionally or alternatively have an ultrasound source.
  • the extruder head 1 also has a number of, in particular controllable, injection nozzles, in particular clocked high-pressure nozzles with a pressure greater than 10 bar, in particular greater than 100 bar.
  • the injection nozzles are designed for injecting, in particular for admixing or introducing, an additive, in particular concrete accelerator, in particular directly, into the building material BS before it emerges.
  • This, in particular the high pressure enables the additive to be widely distributed so that no further mixing device is necessary needs.
  • the number of injection nozzles is arranged opposite the first direction of extent z above the extruder nozzle 5 or the circumferential wall 7d and / or opposite the exit direction -x behind the extruder nozzle 5, and in particular the deflection device 9. This, in particular the arrangement, makes it possible to have or have to dispose of the smallest possible amount of activated building material, in particular concrete, in the extruder head 1 in the event of pumping pauses or interruptions in the printing process.
  • the extruder system 20 has an, in particular controllable, movement device
  • the movement device 22 is designed for at least translational movement of the extruder head 1, in particular during the exit of the strand ST of building material BS.
  • the movement device 22 has a movement arm. Additionally or alternatively, the movement device 22 and / or the extruder head 1 are / is designed for the rotary movement of the extruder head 1, in particular during the exit of the strand ST of building material BS.
  • the extruder head 1 can be rotated about a longitudinal axis of the pipe flange by means of a motor, in particular an electric motor, and in particular a screw drive.
  • the movement device 22 is designed for moving the extruder head 1 in an, in particular horizontal, movement direction -x.
  • the extruder head 1 is designed for the exit of the strand ST of building material BS out of the extruder head 1 in the exit direction x that is non-orthogonal, in particular opposite, to the direction of movement -x, in particular during the movement.
  • the extruder system 20, in particular the extruder head 1 is designed for the exit of the strand ST of building material BS from the extruder head 1 with an, in particular variably adjustable, exit speed vx.
  • the movement device 22 is designed to move the extruder head 1 at a movement speed v-x which is approximately equal to the exit speed vx, in particular during the exit.
  • the extruder system 20 has an, in particular controllable, building material pump
  • the building material pump 23 is designed to convey building material BS out of the extruder head 1.
  • the building material pump is discontinuous, in particular a piston pump.
  • the extruder system 20 has a building material delivery line, the building material delivery line connecting the building material pump 23 to the extruder head 1 for a flow of building material BS from the building material pump 23 through the building material delivery line to the extruder head 1.
  • the extruder system 20 also has a control device 24.
  • the control device 24 is for the, in particular automatic, control of the at least one, in particular controllable, setting device 213, 217a, 217b, 218a, 218b and / or the, in particular controllable, movement device 22 and / or the, in particular controllable, building material pump 23, and in particular the, in particular controllable, vibrating device 25 and / or the number of, in particular controllable, injection nozzles, formed as a function of data DBWT of the structural part BWT to be printed.
  • the extruder system 20, in particular the extruder head 1, is designed for depositing the strand ST, in particular that has emerged, in such a way that the strand ST, in particular that has been deposited, maintains its strand cross section 4, in particular of the strand ST that has emerged.
  • the strand ST can be deposited, in particular in layers, on an already extruded strand ST and / or another strand ST can be deposited on the strand ST, in particular in layers, as shown in FIG. 15.
  • FIGS. 14 and 15 show a use according to the invention of the extruder head 1 and / or the extruder system 20 for extrusion of the strand ST of building material BS for 3D printing of the building part BWT or by means of the extruder head 1 and / or the extruder system 20 3D.
  • the at least one inner element 30a, 30b in the first setting and the at least one, in particular rectangular, cover element 8a, 8b in the second setting, or a central or inner part 2a of the, in particular rectangular, outlet opening 2, in particular with maximum opening width BO, covering are specified or is specified.
  • the rectangular strand cross-section 4 shown in the center in Fig. 15 b) can through the circumferential wall 7a in the first setting or maximally outside, the circumferential wall 7b in the second setting or maximally inside, the at least one inner element 30a, 30b in the second setting and the at least one cover element 8, 8a, 8b can be specified or is specified in the first setting or without a cover element.
  • the inner element 30b, in particular with the end on the outlet opening side, and the peripheral wall 7b can rest against one another or rest against one another.
  • the rectangular strand cross-section 4 shown in the center of FIG. 15 b) can pass through the circumferential wall 7a in the first setting or maximally outside, the circumferential wall 7b in the second setting or maximally inside, the at least one inner element 30a, 30b in the first setting and the at least one, in particular rectangular, cover element 8a, 8b in the second setting or covering a central or inner part 2a of the, in particular rectangular, outlet opening 2, in particular with maximum opening width BO, are specified or is specified.
  • slots can be produced vertically or vertically in a strand or a layer or a layer ST and horizontally or horizontally on an outside of the strand ST, as shown in FIG. 15, in particular b) to e).
  • two narrow or thin structural parts or walls BWT connected with webs can thus be produced with one passage in order to later fill the gap with insulating material or to accommodate installation lines.
  • the strand cross-sections 4 of FIGS. 15 c), d) and e), in particular in this order, in and / or opposite to the exit direction x be arranged.
  • open strand cross-sections 4 can thus be produced to produce a media channel.
  • a support structure such as, for example, a grid, can be and / or be arranged on the strands ST that are not completely over the maximum opening width BO to enable at least one further strand ST to be deposited. This can make it possible to prevent the soft building material from sagging downward into the space, in particular the cavity.
  • joints and corners can be produced or generated.
  • the line can be terminated and started again in order to generate room corners.
  • the preceding strand can be cut orthogonally or perpendicularly or at an angle at a corner and the new strand can be easily pressed against the preceding strand or placed there at the corresponding angle.
  • the extruder head in particular the extruder nozzle, can be positioned one layer or one layer or one level higher in order not to damage or even destroy the strand that is already present.
  • the strand can then be dropped or guided downwards. If the building is round, the same procedure can be used.
  • the strands can be nested in the corners. This can enable clean or smooth corners with no visible transition. Additionally or alternatively, this, in particular the nesting of the strands, in the corners can enable a better binding of the strands after curing, in particular both horizontally and vertically, in particular so as not to create any unintentional breaks.
  • Step a1) Extruding and depositing a first strand ST1 during a translatory, and in particular rotary, movement of the extruder head 1 in an, in particular horizontal, first movement direction -x, and in particular in a curve.
  • Step b1) Ending the extrusion and laying down.
  • Step c) at least rotating or rotating the extruder head 1 through an angle, in particular around a, in particular vertical, vertical axis.
  • Step a2) Extruding and depositing a second strand ST2 during a translatory, and in particular rotary, movement of the rotated extruder head 1 in a, in particular horizontal, second movement direction -y which differs from the first by the angle, and in particular in a curve, such as that an end face FST2 of the second strand ST2 touches the first strand ST1 and / or an end face FST1 of the first strand ST1 touches the second strand ST2.
  • Step a1) Extrude and deposit a first strand ST1.
  • step a2) can include: extruding and depositing the second strand ST2 at least partially on the first strand ST1 in such a way that at least one end face FST2 of the second strand ST2 is offset, in particular arranged, from an end face FST1 of the first strand ST1, or that the first strand ST1 and the second strand ST2 are mixedly offset from one another or are not exactly one above the other.
  • the invention provides an advantageous extruder head for the extrusion of a strand of building material for 3D printing of a building part, which has improved properties, in particular allows more freedom.
  • the invention also provides an extruder system with such an extruder head and a use of such an extruder head and / or such an extruder system. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

La présente invention concerne une tête d'extrudeuse (1) pour l'extrusion d'un boudin (ST) de composant (BS) pour l'impression 3D d'une pièce d'ouvrage (BWT), la tête d'extrudeuse (1) présentant : - une buse d'extrudeuse (5), ladite buse d'extrudeuse (5) présentant une ouverture de sortie (2) pour la sortie du boudin (ST) de composant (BS) depuis la tête d'extrudeuse (1) dans une direction de sortie (x), - au moins un élément de spécification (7a, 7b, 8a, 8b, 30a, 30b), ledit ou lesdits éléments de spécification (7a, 7b, 8a, 8b, 30a, 30b) étant conçus pour être réglables de manière variable pour la spécification variable réglable d'au moins une partie (4A, 4I) d'une section transversale de boudin (4) du boudin (ST) sortant de composant (BS), et - au moins un dispositif de réglage (213, 217a, 217b, 218a, 218b), ledit ou lesdits dispositifs de réglage (213, 217a, 217b, 218a, 218b) étant conçus pour le réglage variable du ou des éléments de spécification (7a, 7b, 8a, 8b, 30a, 30b) et formés et agencés de sorte que la tête d'extrudeuse (1) s'étende dans une première direction d'extension (-z) différente de la direction de sortie (x), en dessous de l'ouverture de sortie (2) pour une hauteur d'ouverture maximale (HO) au maximum autour de la hauteur d'ouverture maximale (HO) et/ou dans au moins une deuxième direction d'extension (-y, y) différente de la direction de sortie (x) latéralement à l'ouverture de sortie (2) pour une largeur d'ouverture maximale (BO) au maximum autour de la largeur d'ouverture maximale (BO).
EP20714564.0A 2019-03-27 2020-03-25 Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion Pending EP3946860A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019204236.8A DE102019204236A1 (de) 2019-03-27 2019-03-27 Extruderkopf, Extrudersystem und Verwendung eines Extruderkopfs und/oder eines Extrudersystems
PCT/EP2020/058307 WO2020193608A2 (fr) 2019-03-27 2020-03-25 Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion

Publications (1)

Publication Number Publication Date
EP3946860A2 true EP3946860A2 (fr) 2022-02-09

Family

ID=70008530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20714564.0A Pending EP3946860A2 (fr) 2019-03-27 2020-03-25 Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion

Country Status (9)

Country Link
US (1) US20220143865A1 (fr)
EP (1) EP3946860A2 (fr)
JP (2) JP2022526785A (fr)
KR (1) KR20210143827A (fr)
CN (1) CN113939388B (fr)
AU (1) AU2020247115A1 (fr)
CA (1) CA3134198A1 (fr)
DE (1) DE102019204236A1 (fr)
WO (1) WO2020193608A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023100763A1 (de) * 2023-01-13 2024-07-18 Putzmeister Engineering Gmbh Druckvorrichtung und -verfahren für den 3D-Druck eines Bauwerks

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293636C (fr) * 1913-09-05 1916-08-21
US1553592A (en) * 1921-03-23 1925-09-15 Otto L Borner Apparatus for the production of hollow blocks made from plastic materials
DE643262C (de) * 1933-01-25 1937-04-02 Paul Thomas Spreizbarer Kern fuer Strangpressen
US6030199A (en) * 1998-02-09 2000-02-29 Arizona Board Of Regents, Acting For And On Behalf Of Arizona State University Apparatus for freeform fabrication of a three-dimensional object
US7153454B2 (en) * 2003-01-21 2006-12-26 University Of Southern California Multi-nozzle assembly for extrusion of wall
JP4260044B2 (ja) * 2004-02-27 2009-04-30 ジャパンパイル株式会社 コンクリート節杭の製造方法
EP2954133B1 (fr) * 2013-02-08 2023-04-05 ETH Zurich Appareil et procédé pour le coffrage glissant vertical de structures en béton
EP3020550B1 (fr) * 2014-11-13 2018-03-07 multec GmbH Tête d'impression et buse d'extrudeuse pour impression 3d
EP3390005B1 (fr) * 2015-12-18 2021-09-01 Laing O'Rourke Australia Pty Limited Appareil et procédé pour la fabrication d'un objet
CN108883627B (zh) * 2015-12-29 2020-10-23 西部数据技术公司 用于三维加成式打印机的挤出机
DE102017200619B3 (de) * 2017-01-17 2018-05-30 Leoni Kabel Gmbh Verfahren und Vorrichtung zum Ummanteln eines langgestreckten Bauteils mit Druckgassteuerung
DE102017202043B4 (de) * 2017-02-09 2020-08-06 Lapp Insulators Gmbh Verfahren und Extrusionsanlage zur Herstellung eines Hubels aus einer keramischen Masse sowie Verwendung des Hubels zur Herstellung eines Isolators
GB2564083A (en) * 2017-05-04 2019-01-09 Koivuharju Arto Construction module printing
US10800085B2 (en) * 2017-06-28 2020-10-13 The Boeing Company Apparatuses for shaping an extrudable material
KR101948547B1 (ko) * 2017-11-06 2019-02-15 한국건설기술연구원 시멘트계 재료의 상하층 결합 강화 및 형상 제어 기능을 가지는 건설구조물 구축용 3d 프린팅 노즐 및 이를 구비한 3d 프린팅 장치
CN108952172A (zh) * 2018-09-06 2018-12-07 北京中瑞麦通科技有限公司 一种3d建筑打印喷头及3d建筑打印机

Also Published As

Publication number Publication date
WO2020193608A3 (fr) 2020-11-19
CN113939388A (zh) 2022-01-14
KR20210143827A (ko) 2021-11-29
DE102019204236A1 (de) 2020-10-01
US20220143865A1 (en) 2022-05-12
CA3134198A1 (fr) 2020-10-01
AU2020247115A1 (en) 2021-11-18
WO2020193608A2 (fr) 2020-10-01
CN113939388B (zh) 2023-05-30
JP2024119803A (ja) 2024-09-03
JP2022526785A (ja) 2022-05-26

Similar Documents

Publication Publication Date Title
EP3947860A1 (fr) Procédé d'impression et système d'impression
DE602004005586T2 (de) Vorrichtung zum teilen eines stroms von teilchenförmigem oderpulverförmigem material in teilströme
WO2020193608A2 (fr) Tête d'extrudeuse, système d'extrusion et utilisation d'une tête d'extrudeuse et/ou d'un système d'extrusion
EP3946861B1 (fr) Système d'extrusion et utilisation d'un système d'extrusion
DE102021126002A1 (de) Spachtel-Nivellierungsverfahren und zugehöriger Satz
EP1812167B1 (fr) Element de sortie a jet pour de la robinetterie sanitaire
EP2288854B1 (fr) Raccord en t, en particulier pour un système de ventilation
WO2020193605A1 (fr) Dispositif d'extrusion, système d'extrusion et utilisation d'un dispositif d'extrusion et/ou d'un système d'extrusion
EP1558370A2 (fr) Chargeur
EP3852999B1 (fr) Dispositif pour agir sur le débit volumique de matériau à déformation plastique extrudé
EP1935504A2 (fr) Dispositif de nettoyage de cabine de revêtement par poudrage et cabine de revêtement par poudrage munie d'un dispositif de nettoyage
DE2758475C3 (de) Verfahren und Vorrichtung zum Herstellen eines Betonrohrs aus einer Betonmischung mit einem niedrigen Absetzwert
DE9115835U1 (de) Halte- und Distanzierungssystem
EP3946862B1 (fr) Procédé pour produire une pièce de construction, système pour produire une pièce de construction et pièce de construction
EP0940184B1 (fr) Dispositif d'alimentation pour granulateur de matériau en forme de feuille
DE2525977C2 (de) Lüftungsgitter für die Belüftung von Innenräumen
EP0866286A2 (fr) Sortie d'air avec un jet élargie

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20230421