EP4237178A1 - Système de récipient d'un dispositif de déballage pour un dispositif de fabrication, dispositif de déballage équipé d'un système de récipient de ce type, et dispositif de fabrication - Google Patents

Système de récipient d'un dispositif de déballage pour un dispositif de fabrication, dispositif de déballage équipé d'un système de récipient de ce type, et dispositif de fabrication

Info

Publication number
EP4237178A1
EP4237178A1 EP21791318.5A EP21791318A EP4237178A1 EP 4237178 A1 EP4237178 A1 EP 4237178A1 EP 21791318 A EP21791318 A EP 21791318A EP 4237178 A1 EP4237178 A1 EP 4237178A1
Authority
EP
European Patent Office
Prior art keywords
container
construction
drive
lid
space
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
EP21791318.5A
Other languages
German (de)
English (en)
Inventor
Daniel GIEK
Wolfgang Laib
Christos ISPIKOUDIS
Manuel GENG
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.)
Trumpf Laser und Systemtechnik GmbH
Original Assignee
Trumpf Laser und Systemtechnik 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 Trumpf Laser und Systemtechnik GmbH filed Critical Trumpf Laser und Systemtechnik GmbH
Publication of EP4237178A1 publication Critical patent/EP4237178A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/38—Housings, e.g. machine housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/68—Cleaning or washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/70—Recycling
    • B22F10/73—Recycling of powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/80—Plants, production lines or modules
    • B22F12/82—Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/80—Plants, production lines or modules
    • B22F12/82—Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/86—Serial processing with multiple devices grouped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/005—Loading or unloading powder metal objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • B29C64/259—Interchangeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/35—Cleaning
    • 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
    • B29C64/357—Recycling
    • 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
    • B29C64/364—Conditioning of environment
    • B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/10—Inert gases
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a container arrangement of an unpacking device for a manufacturing device for the additive manufacturing of a three-dimensional component by selective solidification of powder-like building material (building material powder),
  • the construction container • with a construction container for the production device, the construction container having a construction space which is designed to simultaneously accommodate the component produced in the construction space from building material powder and loose building material powder in an inert atmosphere,
  • the invention also relates to an unpacking device provided with such a container arrangement for a manufacturing device for the additive manufacturing of a three-dimensional component by selective solidification of powder-like building material and a manufacturing device with an unpacking device of the type mentioned.
  • the building container contains, after completion of a manufacturing process, not only the component produced during the manufacturing process but also loose building material powder due to the process. By unpacking the component, the loose building material powder is recovered for reuse in subsequent manufacturing processes.
  • the building material powder used for additive manufacturing must be protected as far as possible from harmful environmental influences.
  • oxidation of the building material powder should be avoided.
  • the manufacturing process not only must the manufacturing process be carried out in an inert atmosphere, but also when unpacking a previously manufactured component from loose building material powder remaining in the building container of the manufacturing process, harmful environmental influences on the building material powder recovered for future manufacturing processes must be prevented.
  • EP 3 068 606 Bl discloses a laser melting device with an unpacking station.
  • a three-dimensional object is produced in a building container that is open at the top, with building material powder being selectively melted and solidified.
  • the construction container which is open at the top, with the object contained therein and with the remaining loose building material powder is transported to the unpacking station and placed there in a frame that can be rotated about a horizontal axis of rotation.
  • On the frame there is a container lid provided with a closable outlet opening, which the construction container after Insertion into the frame closed at the top.
  • the construction container inserted into the frame is transferred into a position in which the outlet opening of the container lid of the construction container points downwards in the direction of gravity.
  • the container lid of the construction container is docked onto a collecting container, which is provided with a container lid with a collecting opening pointing upwards.
  • the loose build material powder flows under gravity from the build container into the collection container.
  • the collection container and the construction container docked to it form a closed and gas-tight interior space that can be filled with protective gas.
  • the object arranged in the construction container can be unpacked from the loose building material powder under a protective gas atmosphere.
  • the loose building material powder contained in the building container which is open at the top, is exposed to oxidation processes.
  • the object of the present invention is to enable the recovery of building material powder contained in a building container of a manufacturing device for additive manufacturing of a three-dimensional component after completion of a manufacturing process, without the quality of the building material powder deteriorating due to harmful environmental influences, for example due to oxidation processes.
  • the construction container has an openable and closable container cover which, in the closed state, seals off a construction space of the construction container from its surroundings.
  • the lid of the construction container is closed after completion of a manufacturing process, which is carried out on the open construction container in an inert atmosphere and at the end of which the construction space of the construction container contains the component produced and loose building material powder in an inert atmosphere. atmosphere.
  • inert gases that are customary are nitrogen or argon, depending on the application.
  • the construction container closed with the container lid can also be transported through an oxygen-containing environment after the production process without the quality of the building material powder contained in the construction container being impaired by oxidation processes.
  • the building container In order to recover the building material powder contained in the building container by unpacking the component arranged in the building space, the building container is tightly connected to a collecting container of the container arrangement according to the invention.
  • the container arrangement On the inside, the container arrangement has an interior which is formed by the construction space of the construction container, which is initially hermetically sealed by the closed container lid, and by a part on the collecting container side, which in turn comprises the collecting space of the collecting container.
  • the part of the interior of the container arrangement on the collection container side has a connection for an inert gas supply and can be filled with an inert atmosphere by means of the inert gas supply when the container lid of the construction container is closed.
  • the initially still closed container cover of the construction container is opened by means of an opening device which can be actuated from outside the interior of the container arrangement with an opening movement in the direction of the collecting space of the collecting container.
  • an opening device which can be actuated from outside the interior of the container arrangement with an opening movement in the direction of the collecting space of the collecting container.
  • the container arrangement can be aligned, for example, in such a way that the building material powder, following gravity, reaches the collecting space of the collecting container from the building space of the building container.
  • the building material powder can be sucked out of the collecting space of the collecting container, for example under inert ambient conditions, and for use in a subsequent manufacturing process.
  • the opening device for the container lid of the construction container has, according to patent claim 2, a drive device that can be actuated from outside the interior of the container arrangement and a coupling provided in the part of the interior of the container arrangement on the collecting container side, via which the drive device of the opening device and the container lid of the Construction container a drive connection can be made.
  • the coupling in the part of the interior of the container arrangement on the collecting container side comprises a drive-side coupling element that can be driven by means of the drive device and a cover-side coupling element assigned to the container cover.
  • the coupling is in a coupling state and the drive device of the opening device according to the invention can bring about the opening movement of the container cover of the building container.
  • the drive-side coupling element and the cover-side coupling element are mutually separated, the coupling is in a non-functional state and the container cover of the construction container is decoupled from the drive device of the movement device according to the invention.
  • Conceivable drive devices are, in particular, a spindle drive that can be actuated from outside the interior of the container arrangement (patent claim 3) or a drive device that can be actuated from outside the interior of the container arrangement and has a drive shaft whose shaft axis runs parallel to a main plane of the closed container lid (patent claim 4).
  • a coupling can be provided between a threaded spindle of the spindle drive and the container cover of the construction container, which on the one hand, for example in an axial extension of the threaded spindle, has a coupling projection and on the other hand, for example on the container cover, has a coupling receptacle.
  • the coupling projection can be releasably fixed in the coupling receptacle for transferring the coupling into the coupled state by means of a corresponding switching process, for example by expanding the cross section of the coupling projection.
  • a drive shaft running parallel to the closed container lid is provided with a coupling arm which is non-rotatably connected to the drive shaft about a shaft axis and which extends in the radial direction of the shaft axis over the upper side of the container lid.
  • the coupling arm can be flat and completely or approximately congruent with the container lid to be opened.
  • Coupling elements of the coupling provided between the drive shaft and the container lid are provided on the one hand on the coupling arm and on the other hand on the container lid and can be connected to one another to convert the coupling into the coupling state (claim 5).
  • a conventional quick release connection is provided (claim 6), which comprises a coupling projection as a coupling element on one of the components to be coupled and a coupling ring receiving the coupling projection and provided with a toggle lever mechanism as a coupling element on the other of the components to be coupled to one another.
  • the coupling arm connected to the container lid preferably forms a structural unit with the container lid, which is detachably connected to the drive shaft of the drive device.
  • the unit consisting of the coupling arm and the container lid can be handled separately, for example for cleaning purposes.
  • the container lid which has been moved into a pivoted open position by means of the drive shaft, can be locked in the pivoted open position (patent claim 7). Locking the swivel-open container lid is recommended, particularly with regard to the processes following the opening of the construction space of the construction container. In particular, a transfer of the container arrangement with the opened container lid into a position in which the building material powder can leave the building space of the building container under the effect of gravity is conceivable.
  • the locking of the container lid according to the invention prevents uncontrolled movements of the container lid that would otherwise have to be feared.
  • the container lid is preferably locked by locking the drive shaft against rotary movements about the shaft axis.
  • the locking of the drive shaft against rotation about the shaft axis causes the container lid to be locked against leaving the pivoted open position occupied by the container lid (patent claim 8).
  • the drive shaft is preferably locked outside the interior of the container arrangement and can then also be released again from outside the interior of the container arrangement.
  • the container lid locked in the pivoted open position can be inclined at an acute angle to the horizontal in the direction of gravity if the container arrangement is aligned appropriately on the support structure of the unpacking device (claim 14).
  • the opened container lid forms an inclined plane over which the loose building material powder coming from the building space of the opened building container can flow into the collection container. Undesirable deposits of building material powder on the side of the container lid facing the building space of the building container are avoided in this case.
  • a further type of invention provides that the drive-side coupling element and the lid-side coupling element of the coupling are parallel relative to one another when the container lid is closed can be positioned relative to the main plane of the closed container lid (claim 10).
  • the coupling elements Due to the mutual positioning of the drive-side and the cover-side coupling element, the coupling elements are transferred to a ready-to-couple state, from which only one switching operation is required, in the case of the quick-release connection according to the invention the actuation of the toggle lever mechanism, in order to establish a drive connection between the drive device of the movement device according to the invention and to produce the container lid to be opened.
  • the feature of the invention serves in particular to retrofit existing unpacking devices with the movement device according to the invention for opening the container lid of the construction container in an inert environment Patent claim 11, according to which the opening device according to the invention forms a device module which is arranged between the construction container and the collecting container of the container arrangement of the unpacking device.
  • the container arrangement in a further development of the unpacking device according to the invention is mounted on the support structure such that it can rotate about an axis which runs perpendicular to the closed container lid of the construction container (patent claim 13).
  • the unpacking process can be supported by causing the component to be unpacked to vibrate.
  • a preferred design of the production device according to the invention uses an inert gas supply for the inerting of the part of the interior of the container arrangement on the collection container side when the container lid of the construction container is closed, which also serves to provide an inert atmosphere in a screening station of the production device (claim 16).
  • Figure la shows a container arrangement of an unpacking device for a manufacturing device for the additive manufacturing of three-dimensional components by selective solidification of powder-like building material with a movement device of the first type for opening a container lid of a building container of the container arrangement
  • FIG. 1b shows the container arrangement according to FIG. 1b with a transparent wall of the container arrangement
  • Figures 2a to 2f schematic representations to illustrate the processes when unpacking a component contained in the container arrangement according to Figures la and lb from loose building material powder and Figure 3 shows a movement device of the second type for the container arrangement of an unpacking device of the type shown in Figures la and lb.
  • the opening device 4 is provided on a support structure 5, shown in detail in FIGS. 2b and 2f, of an unpacking device 6 provided with the container arrangement 1.
  • the building container 2 was previously arranged in a process chamber of a manufacturing device 7, which is shown in outline in FIGS. 2b and 2f, for the additive manufacturing of three-dimensional components by selective solidification of powder-like building material.
  • the basic structure and the basic mode of operation of the production device 7 are described in detail in WO 2019/086231 A1, for example.
  • a three-dimensional component 9 was produced in a construction space 8 of the construction container 2 in the usual way from construction material powder, in the present example from metal powder.
  • the component 9 is attached to a substrate plate 10 which can be raised and lowered in the construction space 8 of the construction container 2 along a vertical infeed axis 11 .
  • the manufacturing process is carried out in the process chamber of the manufacturing device 7 with the construction container 2 open at the top in an inert atmosphere, in this case in a nitrogen atmosphere.
  • the construction container 2 is closed with a container cover 12 in the process chamber.
  • the container lid 12 is placed loosely on an edge 13 of a container opening 14 . Due to a corresponding positive fit between the container lid 12 and the edge 13 of the container opening 14 and by means of a sealing ring running in the circumferential direction of the container lid 12, in the example shown, the installation space 8 of the construction container 2, including the inert atmosphere contained therein, is sealed off from the environment by the closed container lid 12 sealed.
  • a non-positive fit between the loosely placed container lid 12 and the edge 13 of the container opening 14 can be used to seal the construction space 8 of the construction container 2 . Due to the dead weight of the container lid 12 , the frictional connection can result directly between correspondingly configured, for example conical, contact surfaces of the container lid 12 and the edge 13 of the container opening 14 . A non-positive connection due to a flat gasket inserted between the container lid 12 and the edge 13 of the container opening 14 is also conceivable.
  • the installation space 8 contains loose building material powder in addition to the component 9 produced there and the inert atmosphere of the manufacturing process.
  • the filling level of the loose building material powder inside the building space 8 of the building container 2 reaches at least up to the upper end of the component 9 remote from the substrate plate 10.
  • up to the level of the upper end of the component 9 pending loose building material powder further layers of building material powder applied as protective layers for the underlying building material powder.
  • these protective layers inside the construction container 2 would be exposed to harmful environmental influences without the closed container lid 12 during transport of the construction container 2 from the process chamber of the production device 7 to the unpacking device 6 .
  • FIGS. 2a to 2f An inert atmosphere is symbolized in FIGS. 2a to 2f by stippling in the relevant spaces of the container arrangement 1.
  • the loose building material powder is not shown in detail in the drawings.
  • the construction container 2 is removed from the process chamber of the production device 7 and, with the container lid 12 still closed, transported through an oxygen-containing environment to the Unpacking device 6 transported and used there in the support structure 5 ( Figure 2b).
  • the loosely placed container lid 12 can be locked in the sealing position on the rim 13 of the construction container 2 during transport to prevent the container lid 12 from being lost or undesirably slipping.
  • the locking of the container lid 12 is optionally released again.
  • the support structure 5 is provided with the opening device 4 .
  • the construction container 2 is connected gas-tight to an annular wall 16 of the opening device 4 with the edge 13 of the container opening 14 . Together with the opening device 4 , the construction container 2 is mounted on a rotating ring 18 of a container holder 19 of the support structure 5 that can be rotated about a vertical axis of rotation 17 .
  • the opening device 4 is used to lift the container lid 12 from the edge 13 of the container opening 14.
  • the opening device 4 comprises a drive device 20 and a coupling 21 provided between the drive device 20 and the container lid 12.
  • the coupling 21 is designed as a conventional quick-release connection with a coupling ring 22 as a drive-side coupling element and a coupling projection 23 as a cover-side coupling element ( Figure lb).
  • the clutch ring 22 is mounted together with a conventional toggle mechanism for its actuation on a clutch arm 24 which in turn is seated on a drive shaft 25 of the drive device 20 and is non-rotatably connected to the drive shaft 25 about a shaft axis 26 .
  • the connection between the clutch arm 24 and the drive shaft 25 is detachable.
  • the coupling projection 23 is part of the container lid 12.
  • the clutch arm 24 and the container lid 12 can be clamped or released from one another by means of the toggle lever mechanism and the clutch 21 formed by the clutch ring 22 and the clutch projection 23 can thereby be switched to a clutch state or to a release state.
  • the coupling ring 22 and the coupling projection 23 parallel to a main plane 45 of the
  • a part of the coupling arm 24 that is provided with the coupling ring 22 and the associated toggle lever mechanism can be positioned relative to the rest of the coupling arm 24 parallel to the main plane 45 of the container lid 12 .
  • the drive shaft 25 can be driven about the shaft axis 26 by means of a hand lever 27 which runs perpendicular to the shaft axis 26 and is non-rotatably mounted on the drive shaft.
  • the coupling arm 24 of the container opening 14 is secured by corresponding Activation of the hand lever 27 is pivoted against the container lid 12 via the drive shaft 25 rotated about the shaft axis 26, and by means of the toggle lever mechanism a connection is established between the drive-side coupling ring 22 and the lid-side coupling projection 23 of the coupling 21 ( Figure 2c).
  • the container lid 12 is still closed and continues to seal the construction space 8 of the construction container 2 and the inert atmosphere of the construction space 8 contained therein against the environment.
  • the funnel-shaped collection container 3 is placed on the wall 16 of the opening device 4, as indicated in FIG. 2c. After placement, the collecting container 3 is tightly connected to the opening device 4 by means of a clamping ring 28 (FIG. 1a).
  • FIGS. 1a and 1b The conditions shown in detail in FIGS. 1a and 1b thus result.
  • the inert atmosphere inside the construction space 8 is not shown in FIG.
  • the construction space 8 of the construction container 2 containing the previously produced component 9 and loose building material powder in an inert atmosphere is now sealed by the closed container lid 12 against an interior space 29 of the opening device 4 and a collecting space 30 of the funnel-shaped collecting container 3 ( Figure 1b).
  • the interior 29 of the opening device 4 and the collecting space 30 of the collecting container 3 form a part 31 on the collecting container side an interior space 32 of the container arrangement 1 formed by the installation space 8 of the construction container 2, the interior space 29 of the opening device 4 and the collection space 30 of the collection container 3.
  • the hand lever 27 is attached to one of the ends of the drive shaft 25 lying outside the interior space 29 .
  • a valve arrangement 33 is placed on the outside of the wall 16 of the opening device 4 .
  • An inlet side of the valve arrangement 33 is connected to an inert gas supply 34 of the production device 7 .
  • the inert gas supply 34 also serves to provide the inert atmosphere required for the manufacturing process in the process chamber of the manufacturing device 7, specifically in a screening station of the process chamber.
  • the valve assembly 33 also includes an oxygen sensor not shown in detail in the figures.
  • the inert gas supply 34 of the production device 7, with the container cover 12 of the building container 2 closed, supplies an inert atmosphere to the part 31 of the interior 32 of the container arrangement 1 on the collecting container side, and the atmosphere in the part 31 on the collecting container side
  • the oxygen-containing atmosphere previously contained in the interior 32 is displaced from the part 31 of the interior 32 on the collection container side.
  • the supply of inert gas is stopped as soon as the oxygen sensor of the valve arrangement 33 detects an oxygen-free or at least approximately oxygen-free atmosphere inside the part 31 of the interior space 32 on the collection container side.
  • the resulting conditions are shown in Figure 2d.
  • the drive device 20 of the opening device 4 is now actuated by means of the hand lever 27 from outside the interior 32 of the container arrangement 1, and by pivoting the coupling arm 24 about the shaft axis 26 of the drive shaft 25, the container lid 12 is opened lifted off the edge 13 of the container opening 14 with an opening pivoting movement into the pivoted open position according to FIG. 2e.
  • a manually operated latching device is provided with a latching pin, which is guided outside of the interior space 32 of the container arrangement 1 on the wall 16 of the opening device 4 in the radial direction of the drive shaft 25 and which is used to lock the drive shaft 25 under by the action of a detent spring in a detent opening of the drive shaft 25 engages.
  • the locking pin must be manually withdrawn from the locking opening of the drive shaft 25 against the action of the locking spring.
  • the construction space 8 of the construction container 2 is now connected to the collection space 30 of the collection container 3 via the interior space 29 of the opening device 4 .
  • the substrate plate 10 with the component 9 fastened to it is locked in the position shown in FIG. 2e inside the construction container 2.
  • the container arrangement 1 By rotating the container holder 19 of the unpacking device 6 about a horizontal container pivot axis 35 (FIGS. 2b, 2f), the container arrangement 1 is now pivoted from the initial position assumed up to now into an unpacking position illustrated in FIG. 2f.
  • the loose building material powder contained in the building space 8 of the building container 2 up to this point can now flow into the collecting space 30 of the collecting container 3 .
  • the container lid 12 locked in the open position acts as an inclined plane along which the loose building material powder moves.
  • the container arrangement 1 can be rotated about the axis of rotation 17 of the container holder 19 when the container lid 12 is open.
  • the component 9 can be made to vibrate via the substrate plate 10 .
  • a suction device (not shown) is connected to a valve arrangement 36 at the top of the collecting container 3. line connected, via which the loose building material powder which has entered the collecting space 30 of the collecting container 3 from the construction space 8 of the construction container 2 is sucked off.
  • the container arrangement 1 is pivoted about the horizontal container pivot axis 35 from the unpacking position back into the starting position.
  • the clamping ring 28 fixing the collecting container 3 to the opening device 4 is released and the collecting container 3 is removed from the remaining container arrangement 1 .
  • the container lid 12 and the coupling arm 24 fixed to the container lid 12 via the coupling 21 are now separated as a structural unit from the drive shaft 25 of the drive device 20 by the detachable connection between the drive arm 24 and the drive shaft 25 being released.
  • the container opening 14 of the construction container 2 is free for the component 9 to be removed.
  • the component 9 in the construction space 8 of the construction container 2 is lifted from the position shown in the figures to a position close to the container opening 14 by means of a conventional lifting device acting on the substrate plate 10 . Starting from the position close to the container opening 14, the component 9 is finally manually removed from the construction container 2.
  • FIG. 4 An opening device 40 that differs from the opening device 4 of FIGS. 1a to 2f in terms of construction is shown in FIG.
  • the opening device 40 comprises a drive device 41 and a coupling 42 between the drive device 41 and the container lid 12 of the construction container 2.
  • a spindle drive with a threaded spindle 43 is provided as the drive device 41 .
  • a spindle axis 44 of the threaded spindle 43 runs perpendicular to the main plane 45 of the closed container lid 12 indicated by dash-dotted lines in FIG.
  • a coupling projection 47 on a cover-side end of the threaded spindle 43 is provided as a drive-side coupling element and engages in a coupling receptacle 48 which in turn is open to the coupling projection 47 of the threaded spindle 43 and is attached as a cover-side coupling element of the coupling 42 on the upper side of the container cover 12.
  • the coupling projection 47 of the threaded spindle 43 can be effectively fixed by expanding its cross section in the coupling receptacle 48 along the spindle axis 44 and the coupling 42 formed by the coupling projection 47 and the coupling receptacle 48 can thereby be transferred to the coupled state.
  • a hand crank 49 is attached to the threaded spindle 43 outside the interior 32 of the container arrangement 1 in order to actuate the drive device 41 . If the clutch 42 is switched to the clutch state and the hand crank 49 is used to rotate the threaded spindle 43 in an opening direction of rotation, the container lid 12 is opened with a linear opening movement along the spindle axis 44 .
  • the container cover 12 is removed from the remaining container arrangement 1 as a structural unit with the collection container 3 .
  • the handling of the container arrangement 1 provided with the opening device 40 corresponds to the handling of the container arrangement 1 with the opening device 4 described in detail above.

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Plasma & Fusion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un système de récipient (1) d'un dispositif de déballage pour un dispositif de fabrication pour la fabrication additive d'un composant tridimensionnel (9) par solidification sélective d'un matériau de construction pulvérulent (poudre de matériau de construction) qui comprend un récipient de construction (2) présentant un espace de construction (8) et un récipient de collecte (3) qui est relié de manière amovible au récipient de construction (2) et qui comprend un espace de collecte (30). Le récipient de construction (2) comprend un couvercle de récipient (12) pour l'espace de construction (8), ledit couvercle de récipient, fermant de manière étanche par rapport à l'environnement, lorsqu'il est fermé, l'espace de construction (8) et une atmosphère inerte dans cet espace de construction. À l'extérieur du récipient de construction (2), une partie latérale de récipient de collecte (31) d'un espace intérieur (32) du système de récipient (1) est située à l'intérieur du système de récipient (1). Lorsque la partie latérale de récipient de collecte (31) de l'espace intérieur (32) du système de récipient (1) contient une atmosphère inerte, le couvercle de récipient (12) fermé du récipient de construction (2) peut être ouvert au moyen d'un dispositif d'ouverture (4) pour le couvercle de récipient (12) du récipient de construction (2), lequel peut être actionné depuis l'extérieur de l'espace intérieur (32) du système de récipient (1), ce qui permet de relier l'espace de construction (8) du récipient de construction (2) à l'espace de collecte (30) du récipient de collecte (3). L'invention concerne également un dispositif de déballage équipé du système de récipient (1) du type décrit précédemment. Un dispositif de fabrication comprend un dispositif de déballage de ce type.
EP21791318.5A 2020-11-02 2021-10-12 Système de récipient d'un dispositif de déballage pour un dispositif de fabrication, dispositif de déballage équipé d'un système de récipient de ce type, et dispositif de fabrication Pending EP4237178A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020128789.5A DE102020128789A1 (de) 2020-11-02 2020-11-02 Behälteranordnung einer Entpackungsvorrichtung für eine Fertigungsvorrichtung, Entpackungsvorrichtung mit einer derartigen Behälteranordnung sowie Fertigungsvorrichtung
PCT/EP2021/078165 WO2022089935A1 (fr) 2020-11-02 2021-10-12 Système de récipient d'un dispositif de déballage pour un dispositif de fabrication, dispositif de déballage équipé d'un système de récipient de ce type, et dispositif de fabrication

Publications (1)

Publication Number Publication Date
EP4237178A1 true EP4237178A1 (fr) 2023-09-06

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EP21791318.5A Pending EP4237178A1 (fr) 2020-11-02 2021-10-12 Système de récipient d'un dispositif de déballage pour un dispositif de fabrication, dispositif de déballage équipé d'un système de récipient de ce type, et dispositif de fabrication

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US (1) US20230256517A1 (fr)
EP (1) EP4237178A1 (fr)
DE (1) DE102020128789A1 (fr)
WO (1) WO2022089935A1 (fr)

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DE102022003575A1 (de) 2022-09-27 2024-03-28 Solukon Ingenieure GbR (vertretungsberechtigte Gesellschafter: Andreas Hartmann, 86391 Stadtbergen; Dominik Schmid, 86165 Augsburg) Entpulverungsvorrichtung zum Entpulvern von im 3D-Druckverfahren entstandenen Objekten
DE102022212539A1 (de) 2022-11-24 2024-05-29 Volkswagen Aktiengesellschaft Vorrichtung zur Entnahme von Bauteilen aus einem Pulverbett
CN117021572B (zh) * 2023-07-27 2024-04-19 湖南珞佳智能科技有限公司 一种增材制造的缸体密封装置及其使用方法

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DE102013223407A1 (de) * 2013-11-15 2015-05-21 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum schichtweisen Herstellen eines dreidimensionalen Objekts sowie zum Auspacken des fertiggestellten Objekts
DE202013009787U1 (de) 2013-11-29 2013-12-16 Slm Solutions Gmbh Anlage mit einer Werkstückerzeugungssektion
DE102015109848A1 (de) 2015-06-19 2016-12-22 Aconity3D Gmbh PBLS-Anlage
US10259044B2 (en) * 2016-06-29 2019-04-16 Velo3D, Inc. Three-dimensional printing and three-dimensional printers
DE102017108080A1 (de) 2017-04-13 2018-10-18 Trumpf Laser- Und Systemtechnik Gmbh Vorrichtung und Verfahren zum Entpacken eines durch schichtweises Auftragen hergestellten Objekts
DE102017125748A1 (de) 2017-11-03 2019-05-09 Trumpf Laser- Und Systemtechnik Gmbh Deckelanordnung für eine Maschine sowie Maschine und Verfahren zur Herstellung von dreidimensionalen Bauteilen

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DE102020128789A1 (de) 2022-05-05
WO2022089935A1 (fr) 2022-05-05
US20230256517A1 (en) 2023-08-17

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