WO2023086858A1 - Chambre de chauffage pour une machine d'impression 3d - Google Patents

Chambre de chauffage pour une machine d'impression 3d Download PDF

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Publication number
WO2023086858A1
WO2023086858A1 PCT/US2022/079597 US2022079597W WO2023086858A1 WO 2023086858 A1 WO2023086858 A1 WO 2023086858A1 US 2022079597 W US2022079597 W US 2022079597W WO 2023086858 A1 WO2023086858 A1 WO 2023086858A1
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WO
WIPO (PCT)
Prior art keywords
air
machine
disposed
interior space
heating
Prior art date
Application number
PCT/US2022/079597
Other languages
English (en)
Inventor
Forenz ARABIAN
Matthew Ross MITCHELL
Original Assignee
Essentium Ipco, Llc
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 Essentium Ipco, Llc filed Critical Essentium Ipco, Llc
Publication of WO2023086858A1 publication Critical patent/WO2023086858A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/25—Housings, e.g. machine housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C64/295—Heating elements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • 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
    • B33Y10/00—Processes of additive manufacturing

Definitions

  • the present disclosure relates to machines that create additive printed parts and more particularly to a heating chamber that heats an environment around a printed part during manufacture.
  • Machines and platforms for manufacturing additive printed parts generally include a print head that extrudes a material onto a print bed.
  • the print head and the print bed cooperate to move in three dimensions to manufacture a printed part within a heating chamber in the machine.
  • the temperature of the molten filament may be upwards of 400 degrees Celsius.
  • Any material on the print bed, if not kept at an elevated temperature preferably near 180 degrees Celsius, may contract and disrupt the additive printing process.
  • any devices used to maintain this temperature are subject to elevated temperatures that may damage the devices.
  • a heating chamber for use with a machine to manufacture additive printed parts from a filament.
  • the heating chamber includes a blower configured to draw air from the heating chamber, a heating unit that receives the air from the blower, the heating unit configured to heat the air received from the blower, an air return for circulating the heated air from the heating unit back into the heating chamber, and a flow restrictor plate disposed between the blower and the heating unit for directing the air from the blower evenly across the heating unit.
  • a machine for creating an additive part includes a print head, a bed disposed adjacent the print head for supporting the additive part, a filament supply to feed a filament to the print head, and a heating chamber that defines an interior space in which the bed is disposed.
  • the heating chamber includes a wall that partially defines the interior space, an internal housing disposed within the wall, an air flow chamber disposed within the internal housing, an outlet that is offset from a center of the heating chamber and in communication with the air flow chamber, a heater space disposed within the internal housing and in communication with the outlet, a blower mounted through the internal housing and configured to draw air from the interior space and communicate the air to the air flow chamber, a heating element disposed within the heater space configured to heat the air received from the blower, a flow restrictor plate disposed between the outlet and the heating element for directing the air from the blower across the heating element, and an air return disposed within the internal housing and connected to the heating space to circulate the heated air from the heating space into the interior space.
  • the flow restrictor plate is planar and includes a first end and a second end opposite the first end.
  • the flow restrictor plate extends across an entirety of the heater space.
  • a slot is disposed in the flow restrictor plate to direct air flow from the outlet evenly across the heater element.
  • the slot includes a narrow end which is narrow and a wide end which is wider than the narrow end.
  • the slot has a width, which when measured from the narrow end to the wide end, increases constantly along a length of the flow restrictor plate.
  • the first end is positioned proximate the outlet, and the second end is positioned away from the outlet.
  • the flow restrictor plate is angled with respect to the internal housing.
  • a first end of the flow restrictor plate is a first distance above the wall of the housing and a second end of the flow restrictor plate is a second distance above the wall of the housing.
  • the second distance is greater than the first distance.
  • the air return extends along an entirety of a width of the interior space at a top of the interior space. [0016] In another aspect, the air return is mounted to the wall of the heating chamber.
  • the air return has a periscope configuration.
  • the air return includes an air flow passage which is defined by a return inlet disposed within the heating chamber and in communication with the interior space, a first vertical portion connected to the return inlet and extending vertically relative to the heating chamber, a first horizontal portion connected perpendicularly with the first vertical portion, a second vertical portion connected perpendicularly with the first horizontal portion, and a second horizontal portion connected perpendicularly to a return outlet.
  • first vertical portion transitions to the first horizontal portion at a first rounded corner
  • first horizontal portion transitions to the second vertical portion at a second rounded corner
  • second vertical portion transitions to the second horizontal portion at a third rounded corner
  • the blower draws air from the interior space through the return inlet and blows the air across the heating element via the flow restrictor plate, and the heated air is then returned to the interior space at a top of the heating chamber via the air return.
  • a machine for creating an additive part includes a print head, a bed disposed adjacent the print head for supporting the additive part, a filament supply to feed a filament to the print head, and a heating chamber that defines an interior space in which the bed is disposed.
  • the heating chamber includes a wall that partially defines the interior space, an internal housing disposed within the wall, an air flow chamber disposed within the internal housing, an outlet that is offset from a center of the heating chamber and in communication with the air flow chamber, a heater space disposed within the internal housing and in communication with the outlet, a blower mounted through the internal housing and configured to draw air from the interior space and communicate the air to the air flow chamber, a heating element disposed within the heater space configured to heat the air received from the blower, a flow restrictor plate disposed between the outlet and the heating element for directing the air from the blower across the heating element, a slot disposed within the flow restrictor plate to direct air flow from the outlet evenly across the heater element, the slot including a narrow end and a wide end which is wider than the narrow end, and an air return disposed within the internal housing and connected to the heating space to circulate the heated air from the heating space into the interior space.
  • the air return extends along an entirety of a width of the interior space at a top of the interior space.
  • the air return is mounted to the wall of the heating chamber.
  • the air return has a periscope configuration.
  • FIG. 1 is a front perspective view of an exemplary machine for manufacturing additive printed parts with a filament cannister according to the principles of the present invention
  • FIG. 2 is a perspective view of an exemplary print head used in the machine
  • FIG. 3 is perspective front view of a heating chamber of the machine
  • FIG. 4 is a cross-section, viewed in the direction of arrows 4- 4 in FIG.3, of a heating system of the heating chamber;
  • FIG. 5 is perspective, cross-section view of a flow restrictor plate used in the heating system
  • FIG. 6 is a perspective, cross-section view of an air return used in the heating system
  • FIG. 7 is a side perspective view of a blower used in the heating system
  • FIG. 8 is a side perspective view of a shaft coupler used in the blower motor.
  • FIG. 9 is a cross-section, viewed in the direction of arrows 9- 9 in FIG. 7, of the blower motor.
  • a machine for manufacturing additive printed parts is indicated generally by reference number 10.
  • the machine 10 is a high-speed extrusion printer that heats and extrudes a filament 12 to form an additive printed part (not shown).
  • the filament 12 is made from a polymer material.
  • the filament 12 may have varying size, color and material composition.
  • the machine 10 generally includes a housing 14 within which the various components of the machine 10 are supported.
  • a heating chamber 16 according to the principles of the present invention is disposed within the housing 14.
  • the heating chamber 16 provides a controllable environment for the creation of the additive printed parts to prevent contamination and to control the temperature, as will be described in greater detail below.
  • upper doors 18 provide access to the heating chamber 16 at a top of the machine 10 and a front door 19 provides access to the heating chamber 16 at a front of the machine 10.
  • the machine 10 may have various other door configurations without departing from the scope of the present disclosure.
  • the machine 10 generally includes a print head 20, a print bed 22, a filament feed system 24, a filament cannister 26, and a controller 28, each of which will be described in further detail below. [0038] Turning to FIG. 2 and with continued reference to FIG. 1 , a cross-section of an example of the print head 20 is shown.
  • the print head 20 heats and extrudes the filament 12 onto the print bed 22.
  • the print head 20 is fed the filament 12 via the filament feed system 24 by the filament cannister 26.
  • the print head 20 is disposed within the heating chamber 16 of the machine 10. While only one print head 20 is illustrated, it should be appreciated that the machine 10 may have two or more print heads without departing from the scope of the present disclosure.
  • the print head 20 is supported by a gantry (not shown) and is moveable two-dimensionally in a horizontal plane along an x-axis 30 and a y-axis 32 (shown in FIG. 1 ) within the housing 14.
  • the print head 20 generally includes an extruder 36 and a nozzle 38. While only one nozzle 38 and only one extruder 36 is illustrated, it should be appreciated that the print head 20 may have two or more extruders 36 and nozzles 38.
  • the extruder 36 is connected to the filament feed system 24 and receives the filament 12.
  • the extruder 36 extrudes the filament 12 to the nozzle 38 via a pair of opposing hobs 40.
  • the pair of opposing hobs 40 include a drive hob 40A and an idler hob 40B.
  • the drive hob 40A is coupled to a drive motor 42.
  • the idler hob 40B is rotatable on a pin 44.
  • the filament 12 is clamped between the drive hob 40A and the idler hob 40B.
  • the drive motor 42 selectively rotates the drive hob 40A to extrude the filament 12 to the nozzle 38. While in the example provided only one of the plurality of opposing hobs 40 is driven by a motor, it should be appreciated that both hobs 40 may be driven by one or more motors.
  • the nozzle 38 receives the extruded filament 12 from the extruder 36.
  • the nozzle 38 is heated by a heater 46.
  • the nozzle 38 melts the filament 12 within the nozzle 38.
  • the molten filament 12 is then extruded out from a tip 48 at a distal end of the nozzle 38 to be deposited when an additive printed part is being created.
  • the print bed 22 is disposed within the heated chamber 16 and provides a surface upon which the printed part is manufactured.
  • the print bed 22 is supported on a top surface of a build table 50.
  • the build table 50 is movable linearly and vertically within the interior space 60 along a z-axis 52 that is perpendicular to both the x-axis 30 and y-axis 32.
  • the movement of the print head 20 two-dimensionally along the x-axis 30 and the y-axis 32 along with the movement of the build table 50 along the z-axis 52 allows the print head 20 to produce three-dimensional additive printed parts on the print bed 22.
  • the build table 50 starts out positioned high within the heating chamber 16 near the print head 20.
  • the print head 20 moves back and forth two dimensionally along the x-axis 30 and y-axis 32 depositing molten filament onto the print bed 22 to create a preprogrammed two-dimensional shape on the print bed 22.
  • the molten filament hardens sufficiently to hold shape.
  • the build table 50 then gradually moves downward along the z-axis 52 away from the print head 20.
  • the print head 20 deposits successive layers of molten filament onto previously deposited layers of hardened material until a final three-dimensional part is formed.
  • the filament feed system 24 connects one or more filament cannisters 26 with the print head 20.
  • the filament feed system 24 generally comprises a series of tubes that channel the filament 12.
  • the filament cannisters 26 generally house a spool (not shown) of the filament 12.
  • the filament feed system 24 may include buffers (not shown) or feed motors (not shown) to assist the continuous feeding of the filament 12 from the filament canister 26 to the print head 20.
  • the heating chamber 16 is shown separate from the machine 10.
  • the heating chamber 16 includes an interior space 60 defined by a front wall 62, a back wall 64, a first side wall 66, a second side wall 68, and a floor 70.
  • a cover 72 shown in FIG. 1 , is disposed overtop the heating chamber 16, the print head 20, and the print table 50, to enclose the interior space 60.
  • the upper doors 18 are disposed in the cover 72 and provide access to the print head 20.
  • the front wall 62 includes an opening 74.
  • the front door 19, shown in FIG. 1 provides access to the interior space 60 via the opening 74.
  • the back wall 64 includes tracks 76 that run vertically within the heating chamber 16. The tracks 76 support the print table 50 (FIG. 1 ) and allow the print table 50 to move along the z-axis 52 within the heating chamber 16.
  • the first side wall 66 and the second side wall 68 each house a heating system 80. As the heating systems 80 are identical, only one will be described in detail.
  • the heating system 80 circulates and heats air within the heating chamber 16 to maintain an elevated temperature evenly throughout the interior space 60.
  • the heating system 80 generally includes a blower 82, a heating element 84, and an air return 86.
  • the blower 82 is located at a bottom of the heating chamber
  • the blower 82 is mounted to the side wall 66 and communicates with the interior space 60 via a vent 88.
  • the blower 82 draws air from the interior space 60 through the vent 88 (arrow 90) and blows the air across the heating element 84 (arrows 92).
  • the heated air is then returned to the interior space 60 at a top of the heating chamber 16 via the air return 86 (arrows 94).
  • FIG. 4 a cross-section view of the heating system 80 is shown.
  • the blower 82 is mounted through an internal housing 100 within the second side wall 68 that defines an air flow chamber 102.
  • the air flow chamber 102 includes an outlet 104 that communicates with a heater space 106.
  • the outlet 104 is offset from a centerline of the side wall 66 of the heating chamber 16. In the example provided, the outlet 104 is positioned forward (i.e. closer to the front wall 62 of the heating chamber 16 than the back wall 64).
  • the heating element 84 is disposed within the heater space 106.
  • a flow restrictor plate 108 is disposed between the outlet 104 and the heating element 84. The flow restrictor plate 108 is configured to direct air from the outlet 104 evenly across the heating element 84.
  • the flow restrictor plate 108 is planar and includes a first end 110A and a second end 110B opposite the first end 110A.
  • the flow restrictor plate 108 extends across the entirety of the heater space 106 (forward to backward relative to the machine 10).
  • a slot 112 is formed in the flow restrictor plate 108.
  • the slot 112 In order to direct air flow from the outlet 104 evenly across the heater 84, the slot 112 includes a narrow end 114A and a wide end 114B. The slot 112 continuously transitions across a length of the flow restrictor plate 108 from the narrow end 114A to the wide end 114B.
  • the slot 112 has a width 116, measured left to right relative to the machine 10, that increases constantly along the length of the flow restrictor plate 108.
  • the narrow end 114A is proximate the outlet 104 and the wide end 114B is positioned away from the outlet 104.
  • the flow restrictor plate 108 is angled with respect to the housing 100.
  • the first end 110A is a first distance 118A above a wall 120 of the housing 100 and the second end 110B is a second distance 118B above the wall 120 of the housing 100.
  • the second distance 118B is greater than the first distance 118A. Accordingly, air flow from the outlet 104, though offset relative to a centerline of the heating element 84, is directed evenly across the heating element 84 by the air flow restrictor 108.
  • the heating element 84 is preferably a resistance heater that heats aluminum fins 122.
  • the heating element 84 includes four heating sub-units 84A-D, though any number of sub-units may be used.
  • the flow restrictor plate 108 directs the air evenly across each of the subunits 84A-D.
  • the fins 122 are heated and as the air passes over the fins 122, the air is heated to a desired temperature. The heated air is then forced into the air return 86.
  • the air return 86 is shown in crosssection view.
  • the air return 86 is mounted at a top of the heating chamber 16.
  • the air return 86 has a particular configuration to evenly distribute the heated air across the interior space 60 front to back while also directing the heated air downwards.
  • the air return 86 is configured to provide space to the print head 20 (FIG. 1) to move left and right to a maximum amount without interference.
  • the air return 86 thus has a unique periscope configuration, as will be described below.
  • the air return 86 includes a casing 130 that defines a return inlet 132 and a return outlet 134.
  • the return inlet 132 is in communication with the heater space 106 and receives the heated air from the heater 84.
  • the return outlet 134 communicates with the interior space 60 of the heating chamber 16.
  • An air flow passage 136 defined by the casing 130 connects the return inlet 132 with the return outlet 134.
  • the air flow passage 136 includes a first vertical portion 136A, a first horizontal portion 136B, a second vertical portion 136C, and a second horizontal portion 136D.
  • the first vertical portion 136A is connected to the return inlet 132 and extends vertically relative to the heating chamber 16.
  • the first horizontal portion 136B connects perpendicularly with the first vertical portion 136A.
  • the first vertical portion 136A transitions to the first horizontal portion 136B at a first rounded corner 138A which helps smoothly direct air flow.
  • the second vertical portion 136C connects perpendicularly with the first horizontal portion 136B.
  • the first horizontal portion 136B transitions to the second vertical portion 136C at a second rounded corner 138B which helps smoothly direct air flow.
  • the second vertical portion 136D connects perpendicularly to the second horizontal portion 136C and to the return outlet 134.
  • the second vertical portion 136C transitions to the second horizontal portion 136D at a third rounded corner 138C which helps smoothly direct air flow.
  • a length of the first horizontal portion 136B is larger than a length of the second horizontal portion 136D.
  • the return outlet 134 is spaced a distance 140 from the side wall 66 of the heating chamber 16. Therefore, a print head operating space 142 is formed above the air return 86.
  • the print head 20 is able to operate in the print head operating space 142 which allows full use of the print bed 22 (FIG. 1 ).
  • the blower 82 generally includes a fan 148 driven by a motor 150.
  • the fan 148 generally includes a fan housing 152 that houses a plurality of fan blades 154 mounted to a rotatable hub 156.
  • the motor 150 is mounted to the fan housing 152 via a support bracket 158.
  • the motor 150 is an electrical motor that drives an output shaft 160 (shown in FIG. 9).
  • the output shaft 160 of the motor 150 is connected to the hub 156 of the fan 148 via a shaft coupler 162. Rotation of the output shaft 160 rotates the shaft coupler 162, which in turn rotates the hub 156 and the fan blades 154.
  • the shaft coupler 162 is configured to reduce heat transfer from the fan 148 to the motor 150.
  • the shaft coupler 162 includes first section 162A configured to engage the output shaft 160 of the motor 150 and a second section 162B configured to engage the hub 156 of the fan 148.
  • Disposed along a length of the second section 162B are heat break holes 164.
  • the heat break holes 164 extend through the second section 162B and reduce a surface area of the second section 162B.
  • Additional heat break holes 166 are disposed in a transition section 162C between the first section
  • the heat break holes 164, 166 reduce the heat transfer from the hub 156 to the output shaft 160.
  • the motor 150 includes a heat sink 170 and a cooling fan 172.
  • the heat sink 170 is disposed in close contact around the motor 150 and includes cooling fins 174.
  • the cooling fan 172 blows air across the cooling fins 174 to cool the motor 150.
  • a flow straightener 176 is disposed between the cooling fan 172 and the heat sink 170 and motor 150.
  • the flow straightener 176 includes angled flow surfaces 178 that direct air blown by the cooling fan 172 away from an end 180 of the motor 150 and instead to the cooling fins 174 of the heat sink 170.
  • the controller 28 is in electrical communication with various components of the machine 10 including the extruder 36 in the print head 20, the build table 50, and heating system 80.
  • the controller 28 is a non-generalized, electronic control device having a preprogrammed digital computer or processor, memory or non-transitory computer readable medium used to store data such as control logic, software applications, instructions, computer code, data, lookup tables, etc., and a transceiver or input/output ports.
  • the computer readable medium includes any type of medium capable of being accessed by a computer, such as read only memory (ROM), random access memory (RAM), a hard disk drive, a compact disc (CD), a digital video disc (DVD), or any other type of memory.
  • the non- transitory computer readable medium excludes wired, wireless, optical, or other communication links that transport transitory electrical or other signals.
  • the non-transitory computer readable medium includes media where data can be permanently stored and media where data can be stored and later overwritten, such as a rewritable optical disc or an erasable memory device.
  • Computer code includes any type of program code, including source code, object code, and executable code.
  • the controller 28 is configured to control movement of the first print head 20 along the x-axis 30 and the y-axis 32 and the movement of the build table 50 along the z-axis. In addition, the controller 28 controls the extruder 36 to extrude the molten filament 12 onto the print bed 22 and controls the blower 82 and the heating unit 84 to maintain a temperature of approximately 180 degrees Celsius within the heating chamber 16.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

Une chambre de chauffage destinée à être utilisée dans une machine comprend une soufflante, une unité de chauffage pour recevoir de l'air provenant de la soufflante, un retour d'air pour faire recirculer l'air chauffé dans la chambre de chauffage, et une plaque de restriction d'écoulement disposée entre la soufflante et l'unité de chauffage pour diriger l'air de manière uniforme à travers l'unité de chauffage.
PCT/US2022/079597 2021-11-12 2022-11-09 Chambre de chauffage pour une machine d'impression 3d WO2023086858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163278660P 2021-11-12 2021-11-12
US63/278,660 2021-11-12

Publications (1)

Publication Number Publication Date
WO2023086858A1 true WO2023086858A1 (fr) 2023-05-19

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108582782A (zh) * 2018-07-27 2018-09-28 中科院广州电子技术有限公司 一种双循环加热恒温成型空间的3d打印机
CN109571933A (zh) * 2018-11-29 2019-04-05 夏领兵 一种3d打印机
CN211105621U (zh) * 2019-11-05 2020-07-28 江苏奥维智能科技有限公司 一种fff打印机用腔体加热系统
CN211441199U (zh) * 2020-01-07 2020-09-08 南京工业职业技术学院 一种光固化三维打印设备热空气加热系统
US11161336B2 (en) * 2016-08-15 2021-11-02 Stratasys, Inc. Heated air system for 3D printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11161336B2 (en) * 2016-08-15 2021-11-02 Stratasys, Inc. Heated air system for 3D printer
CN108582782A (zh) * 2018-07-27 2018-09-28 中科院广州电子技术有限公司 一种双循环加热恒温成型空间的3d打印机
CN109571933A (zh) * 2018-11-29 2019-04-05 夏领兵 一种3d打印机
CN211105621U (zh) * 2019-11-05 2020-07-28 江苏奥维智能科技有限公司 一种fff打印机用腔体加热系统
CN211441199U (zh) * 2020-01-07 2020-09-08 南京工业职业技术学院 一种光固化三维打印设备热空气加热系统

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