WO2024055652A1 - Dispositif d'impression 3d photodurcissable - Google Patents

Dispositif d'impression 3d photodurcissable Download PDF

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Publication number
WO2024055652A1
WO2024055652A1 PCT/CN2023/099997 CN2023099997W WO2024055652A1 WO 2024055652 A1 WO2024055652 A1 WO 2024055652A1 CN 2023099997 W CN2023099997 W CN 2023099997W WO 2024055652 A1 WO2024055652 A1 WO 2024055652A1
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WO
WIPO (PCT)
Prior art keywords
curing
unit
light
printing
gas
Prior art date
Application number
PCT/CN2023/099997
Other languages
English (en)
Chinese (zh)
Inventor
陈春
黄国华
Original Assignee
深圳市创想三维科技股份有限公司
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 深圳市创想三维科技股份有限公司 filed Critical 深圳市创想三维科技股份有限公司
Publication of WO2024055652A1 publication Critical patent/WO2024055652A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • 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
    • 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
    • B29C64/227—Driving means
    • 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
    • B29C64/245—Platforms or substrates
    • 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
    • B29C64/255—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
    • B29C64/295—Heating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

Definitions

  • This application relates to the field of 3D printing, and in particular to a light-curing 3D printing device.
  • Light-curing 3D printers generally use a light source in a specific wavelength range to irradiate liquid light-curing resin and trigger a photochemical reaction, so that the light-curing resin in the area illuminated by the light source is solidified from the liquid. After solidification layer by layer, the object to be formed can be obtained. Since liquid light-curing resin has a certain volatility, it will produce a large odor and release some gases harmful to the human body during use.
  • the main component is acrylic acid molecules, so long-term use will cause environmental pollution and may affect the human body. healthy.
  • Existing light-curing 3D printers generally use a sealable printer structure to prevent harmful gases in the internal space of the fuselage from being released outward. Since it is difficult to completely seal the casing of a light-curing 3D printer, and you need to open the casing to add liquid light-curing resin raw materials before starting printing, and you need to open the casing to take out the printed product after printing is completed, these operations will lead to accumulation. Harmful gases inside the fuselage shell are directly released into the outside air, polluting the outside air and possibly causing damage to human health. Moreover, during the photocuring process, the ambient temperature has a direct impact on the printing effect. How to quickly and uniformly regulate the ambient temperature while processing harmful components in the gas is what those skilled in the art need to consider.
  • embodiments of the present application provide a light-curing 3D printing device, which can filter, purify and control the temperature of the internal gas environment.
  • Embodiments of the present application provide a light-curing 3D printing device, which is used to solidify and shape liquid light-curing resin through illumination to achieve 3D printing.
  • the light-curing 3D printing device includes:
  • the fuselage cover limits the internal space
  • a first circulation component is located in the internal space and used to heat and filter the gas in the internal space;
  • the first circulation component defines a first air chamber inside
  • the first circulation component includes a first gas driving unit, a heating unit and a first filtering unit, the first gas driving unit, the heating unit and the The first filter unit is spaced in the first air chamber, and the first gas driving unit It is used to inhale the gas outside the first air chamber into the first air chamber, and transmit it to the outside of the first air chamber after passing through the heating unit and the first filter unit.
  • the heating unit includes a hollow bracket and an electric heating wire.
  • the electric heating wire is arranged around the hollow bracket. The electric heating wire is used to generate heat after being energized to heat the gas.
  • the heating unit is provided between the first gas driving unit and the first filter unit, the first filter unit includes a first filter element, and the first filter unit is The gas entering the first air chamber is discharged from the first air chamber after passing through the first filter element.
  • the first gas driving unit further includes a front shell, a rear shell and a top shell, and the front shell snaps with the rear shell to accommodate the first gas driving unit and the top shell.
  • Heating unit, the top shell is connected to one side of the front shell and the rear shell after being buckled to accommodate the first filter unit.
  • the first gas driving unit further includes an integrated circuit board, the integrated circuit board is connected to the front shell and is disposed in the first air chamber, and the first gas driving unit The unit and the heating unit are electrically connected to the integrated circuit board.
  • the light-curing 3D printing device further includes a second circulation component that communicates the internal space with the outside of the light-curing 3D printing device.
  • the second circulation component The component is used to filter the gas in the internal space and discharge it to the outside of the light-curing 3D printing device.
  • the second circulation component is fixed to the fuselage cover, the second circulation component includes a second gas driving unit, a second filter unit and an exhaust unit, and the second filter The unit is connected to the internal space, the second gas driving unit is connected to the second filter unit, the second gas driving unit is connected to the exhaust unit, and the exhaust unit is connected to the light curing unit.
  • the exterior of a 3D printed device is fixed to the fuselage cover, the second circulation component includes a second gas driving unit, a second filter unit and an exhaust unit, and the second filter The unit is connected to the internal space, the second gas driving unit is connected to the second filter unit, the second gas driving unit is connected to the exhaust unit, and the exhaust unit is connected to the light curing unit.
  • the second gas driving unit includes a blowing fan and a fixing bracket.
  • the blowing fan is connected to the fuselage cover through the fixing bracket.
  • the blowing fan is connected to the fuselage cover through the fixing bracket.
  • the exhaust unit is connected, the second filter unit includes a second filter lower shell, a second filter element and a second filter upper shell, the second filter lower shell is connected to the fuselage cover, the second filter upper shell It is detachably connected to the second filter lower shell to accommodate the second filter element.
  • the fuselage cover includes a base and an upper cover, the base and the upper cover are detachably buckled, and the upper cover is buckled with the base and defines a first accommodation space.
  • the first circulation component is located in the first accommodation space;
  • the light-curing 3D printing device also includes a printing platform and a printing component located in the first accommodation space, the printing platform and the The printing components are respectively connected to the base, the first accommodation space is the molding space of the light-curing 3D printing device, and the printing components cooperate with the printing platform to perform 3D printing.
  • the base defines a second accommodation space inside, the first accommodation space is connected with the second accommodation space, and the internal space includes the first accommodation space and the second accommodation space.
  • the mentioned Two accommodation spaces, the printing assembly defines a third accommodation space, the third accommodation space is connected with the second accommodation space and the first accommodation space, and the external part of the light-curing 3D printing device The gas can reach the first accommodation space via the second accommodation space and the third accommodation space in sequence.
  • the light-curing 3D printing equipment of the present application circulates the gas in the internal space through the first circulation component through the first gas driving unit.
  • the gas passing through the first circulation component can be circulated by the second circulation component.
  • a filter unit filters and purifies, and at the same time, the gas passing through the first circulation component can also be heated by the heating unit.
  • the light-curing 3D printing equipment of this application uses a first circulation component integrated with heating and filtering functions to quickly and efficiently purify and heat the gas in the internal space through gas circulation.
  • Figure 1 is a three-dimensional schematic diagram of the light-curing 3D printing equipment of the present application.
  • Figure 2 is a three-dimensional exploded schematic view of the light-curing 3D printing equipment of the present application.
  • Figure 3 is a schematic three-dimensional view of the light-curing 3D printing equipment of the present application after the cover is hidden.
  • Figure 4 is a three-dimensional schematic view of the light-curing 3D printing device of the present application after hiding the upper cover and the first circulation component.
  • Figure 5 is a schematic three-dimensional view of the first circulation component of the light-curing 3D printing device of the present application.
  • Figure 6 is a three-dimensional schematic view of the first circulation component of the light-curing 3D printing device of the present application.
  • Figure 7 is an exploded perspective view of the first circulation component of the light-curing 3D printing device of the present application.
  • Figure 8 is a three-dimensional exploded schematic view of the first circulation component of the light-curing 3D printing device of the present application from another angle.
  • FIG. 9 is a three-dimensional exploded schematic diagram of the second circulation component included in the light-curing 3D printing device of the present application.
  • inventions of the present application provide a light-curing 3D printing device 1, which is used to solidify liquid light-curing resin to achieve 3D printing through illumination.
  • the light-curing 3D printing device 1 includes a body cover. 10 and the first circulation component 11.
  • the fuselage cover 10 defines an internal space 100; the first circulation component 11 is disposed in the internal space 100 and is used to heat and filter the gas in the internal space 100; wherein, the first circulation component 11 defines a first air chamber 110 inside, and the first circulation component 11
  • the assembly 11 includes a first gas driving unit 113, a heating unit 114 and a first filtering unit 111.
  • the first gas driving unit 113, the heating unit 114 and the first filtering unit 111 are spaced apart in the first air chamber 110.
  • the unit 113 is used to inhale the gas outside the first air chamber 110 into the first air chamber 110 and transmit it to the outside of the first air chamber 110 after passing through the heating unit 114 and the first filter unit 111 .
  • the light-curing 3D printing device 1 of the present application uses the first gas driving unit 113 to circulate the gas in the internal space 100 through the first circulation component 11 .
  • the gas passing through the first circulation component 11 can be filtered and purified by the first filter unit 111 , and at the same time, the gas passing through the first circulation component 11 can also be heated by the heating unit 114 .
  • the light-curing 3D printing device 1 of the present application uses a first circulation component 11 integrated with heating and filtering functions to quickly and efficiently purify and heat the gas in the internal space 100 through gas circulation.
  • the first circulation component 11 adjusts the molding environment temperature of the light-curing 3D printing device 1 by heating the gas in the internal space 100 .
  • the gas in the internal space 100 can be heated to 70 to 80° C. and then transferred to the photo-curing resin to adjust the temperature of the liquid photo-curing resin, especially the temperature of the upper surface of the liquid photo-curing resin.
  • the optimal printing temperature range for light-curing resin is 35 to 45°C. If the temperature is too low, the curing reaction of the light-curing resin will slow down, resulting in a longer curing time. It is necessary to increase the curing time of each layer. If the curing time is not increased, the curing time will be longer.
  • next layer may be printed before the previous layer is completely cured, causing the model to delaminate; if the temperature is too high, the curing reaction of the light-curing resin will be very fast, and the stress in the model cannot be completely released, causing the model to crack later. At the same time, they should also be matched to reduce the curing time of each layer. Mismatching will also lead to model delamination.
  • the fuselage cover 10 includes an upper cover 104 and a base 105.
  • the upper cover 104 and the base 105 are detachably engaged.
  • the upper cover 104 and the base 105 are engaged and define the first accommodation space 101.
  • the first circulation component 11 is located in the first accommodation space 101.
  • the upper cover 104 may be in the shape of a hollow semi-enclosed upper cover.
  • the upper cover 104 may have a wedge-shaped structure with a smaller top and a larger bottom. That is, the cross-sectional area of the end of the upper cover 104 away from the base 105 is smaller, and the cross-sectional area of the end of the upper cover 104 that engages with the base 105 is smaller. larger to lower the center of gravity of the upper cover 104 and enhance the stability of the fuselage cover 10 .
  • the base 105 includes a central portion that cooperates with the upper cover 104 to define the first accommodation space 101 .
  • the base 105 also includes two side panels 107 , a front panel 108 and a rear panel 109 located outside the interior space 100 and surrounding the middle panel 106 .
  • the middle plate 106 can also be provided with latching edges 1061 , and the latching edges 1061 can be provided at the four corners of the middle plate 106 .
  • the upper cover 104 can be fastened to the base 105 through the stepped latching edges 1061 . Try to form an internal space 100 with better sealing performance.
  • Two side plates 107 are spaced on opposite sides of the base 105.
  • the front plate 108 and the rear plate 109 are spaced on the other two sides of the base 105.
  • the front plate 108 and the rear plate 109 are respectively located on the two side plates 107. between.
  • the front panel 108 can be provided with a display area 1081.
  • the display area 1081 can be a touch display module integrated with display and touch functions.
  • the display area 1081 can be used to display relevant information of the light-curing 3D printing device 1 or allow the operator to pass
  • the display area 1081 can be operated by touch.
  • the display area 1081 can also be integrated with an existing processor module that can perform digital operations
  • the base 105 defines a second accommodation space 102 inside.
  • the first accommodation space 101 is connected with the second accommodation space 102.
  • the second accommodation space 102 can be opened on the side panel 107 and/or the rear panel.
  • the breathable structure (such as pores, etc.) on 109 is connected with the external gas environment of the light-curing 3D printing device 1 .
  • the light-curing 3D printing device 1 further includes a printing platform 14 and a printing component 15 located in the first accommodation space 101.
  • the printing platform 14 and the printing component 15 are respectively connected to the base 105.
  • the first accommodation space 101 is the molding space of the light-curing 3D printing device 1, and the printing component 15 cooperates with the printing platform 14 to perform 3D printing.
  • the area between the printing platform 14 and the printing assembly 15 may be the molding area of the light-curing 3D printing device 1 .
  • the printing platform 14 may include a material trough 141 and a fixing bolt 142.
  • the material trough 141 may be used to accommodate the aforementioned liquid light-curing resin.
  • the two fixing bolts 142 are spaced on both sides of the material trough 141.
  • the material trough 141 It is detachably connected to the base 105 through a fixing bolt 142 .
  • the material trough 141 can be fixed on the surface of the middle plate 106 by tightening the fixing bolt 142, and the opening of the material trough 141 faces away from the middle plate 106 so that the light emitted by the printing assembly 15 can shine into the material trough 141.
  • the material trough 141 and the base 105 can be detached by loosening the fixing bolt 142, so that the material trough 141 can be taken out from the inner space 100 for loading or cleaning.
  • the printing assembly 15 may include a column 151 , a driving module 152 and a forming module 153 .
  • the column 151 is connected to the base 105 and extends toward the middle plate 106 away from the second accommodation space 102 .
  • the forming module 153 The driving module 152 is connected to the column 151, and the driving module 152 drives the molding module 153 closer to or farther away from the printing platform 14 to complete 3D printing.
  • the driving module 152 and the molding module 153 can be electrically connected to the display area 1081 and integrated with the processor therein through conventional electrical connection units such as wires or flexible circuit boards.
  • the internal space 100 in addition to the first accommodating space 101 and the second accommodating space 102, also includes a third accommodating space 103.
  • the column 151 of the printing assembly 15 defines a third accommodation space 103.
  • the third accommodation space 103 is connected with the second accommodation space 102 and the first accommodation space 101.
  • the gas outside the light-curing 3D printing device 1 can pass through the second accommodation space in turn.
  • the accommodation space 102 and the third accommodation space 103 arrive at the first accommodation space 101.
  • the upright column 151 at least includes a hoarding 154 and a top plate 155.
  • the hoarding 154 is connected to the base 105 and extends away from the base 105.
  • the top plate 155 is connected to the end of the hoarding 154 away from the base 105.
  • the hoarding 154 A hanging hole 156 for hanging the first circulation component 11 may be opened on the upper side.
  • the driving module 152 can be disposed in the third accommodation space 103.
  • the driving module 152 can include a screw rod 157 and a driving motor (not shown) for driving the screw rod 157.
  • the driving motor can pass through a coupling. (not shown) is drivingly connected to the screw rod 157 .
  • the drive motor and the coupling can be common and practical structures in the prior art (for example, the drive motor can be a stepper motor), and the drive motor and the coupling are used to cooperate with each other.
  • the driving screw 157 drives the forming module 153 to move.
  • the molding module 153 may include a connecting unit 158 and a molding platform 159.
  • One end of the connecting unit 158 extends into the third accommodation space 103 and is drivingly connected to the screw rod 157, and the other end of the connecting unit 158 is connected to the molding platform.
  • 159 is connected, and the screw rod 157 drives the forming platform 159 to be movable and immersed in the material tank 141.
  • the base 105 can also be provided with a molding light source (not shown in the figure), which irradiates a molding light beam toward the bottom of the trough 141, and the molding light beam passes through a screen (not shown in the figure) installed at the middle plate 106, so The pattern to be printed is displayed on the screen, and the forming beam passes through the pattern and projects the light spot onto the liquid light-curing resin in the trough 141.
  • the forming platform 159 is immersed in the liquid light-curing resin under the control of the screw rod 157. to complete the molding printing.
  • the side of the column 151 facing the molding module 153 may have an opening structure 1510 to avoid interference with the movement of the connection unit 158; in other embodiments, the column 151 may also be provided with an opening structure 1510 corresponding to the side thereof.
  • a cover structure (not shown) covering the opening structure 1510 to enhance the sealing of the first accommodation space 101 and reduce the air flow interaction speed between the first accommodation space 101 and the third accommodation space 103.
  • the top plate 155 is provided with a corresponding breathable structure, and the cover plate structure should not affect the screw rod 157 driving the molding module 153.
  • the first circulation component 11 also includes a front shell 117, a rear shell 118 and a top shell 119.
  • the front shell 117 and the back shell 118 are fastened to accommodate the first gas driving unit 113 and the heating unit 114.
  • the top shell 119 It is connected to one side of the fastened front shell 117 and the rear shell 118 to accommodate the first filter unit 111 .
  • the front shell 117 and the back shell 118 can be fixed through sheet metal flanges and countersunk screws. After the front shell 117 and the back shell 118 are fixed, they form a hollow columnar shape with both ends open; the top shell 119 is buckled on The front shell 117 and the rear shell 118 are at the same end. The top shell 119 can cooperate with the buckles at the corresponding positions of the front shell 117 and the rear shell 118 through the raised buckles at the bottom to achieve a fast disassembly and fixation form to facilitate quick replacement of the second shell.
  • a filter unit 111 The front shell 117 , the rear shell 118 and the top shell 119 cooperate with each other to form the first air chamber 110 .
  • the first gas driving unit 113 and the heating unit 114 are disposed in the hollow column formed by the front shell 117 and the rear shell 118.
  • the first gas driving unit 113 is disposed on the side away from the top shell 119, and the heating unit 114 is disposed close to the top. Shell 119 side.
  • the first circulation component 11 further includes an inner bracket 138 and a bottom shell 139.
  • the front shell 117 and the rear shell 118 can be connected to the inner bracket 138.
  • the heating unit 114 and the first gas driving unit 113 can be connected to the inner bracket. 138.
  • the heating unit 114 can be clamped in the internal bracket 138.
  • the first filter unit 111 The first gas driving unit 113 can be connected to the opposite sides of the inner bracket 138 .
  • the bottom shell 139 can be connected to the front shell 117 and the rear shell 118 .
  • the bottom shell 139 is located on the side of the first gas driving unit 113 away from the heating unit 114 .
  • the bottom case 139 can be fixedly connected to the front case 117 and the rear case 118 through countersunk screws.
  • the rear shell 118 may be provided with a protruding structure such as a plug screw, so that the rear shell 118 can cooperate with the hanging hole 156 to achieve detachable connection between the first circulation component 11 and the upright column 151 .
  • the first circulation component 11 is hung on the column 151, and the first circulation component 11 is placed close to the molding area, so that the first gas driving unit 113 (the air inlet end of the first circulation component 11) is close to the material trough. 141, bring the first filter unit 111 (the air outlet end of the first circulation component 11) close to the molding module 153, so as to directly and more efficiently purify, heat up and control the molding area.
  • the heating unit 114 includes a hollow bracket 115 and an electric heating wire 116.
  • the electric heating wire 116 is arranged around the hollow bracket 115.
  • the electric heating wire 116 is used to generate heat after being energized to heat the gas.
  • the heating unit 114 may also include an overcurrent protection switch (not shown), which may be arranged in series with the electric heating wire 116 .
  • the hollow bracket 115 can be a hollow three-dimensional frame with a cross-shaped or tic-shaped cross section and extending in the same extension direction as the front shell 117 and the rear shell 118 .
  • the electric heating wire 116 is rotated around the periphery of the hollow bracket 115 .
  • the hollow brackets arranged in a cross shape or a grid shape can improve the efficiency of air flow and allow the air flow to circulate smoothly when passing through the heating unit 114 .
  • the heating unit 114 is disposed between the first gas driving unit 113 and the first filter unit 111.
  • the first filter unit 111 includes a first filter element 112. The first filter unit 111 is used to allow the gas to enter the first air chamber. 110 gas passes through the first filter element 112 and then is discharged from the first air chamber 110 .
  • the first filter element 112 may be an activated carbon filter element with a multi-layer stacked structure or a three-dimensional porous structure, and the shape of the first filter element 112 may be cubic to fit the top case 119 .
  • the first filtration unit 111 may also include a reinforced filter membrane for wrapping the first filter element 112 to improve the filtration performance of the first filtration unit 111 .
  • the first gas driving unit 113 is an axial flow fan, and the first gas driving unit 113 generates air flow along the axial direction of the first circulation assembly 11 .
  • the airflow outside the first air chamber 110 is sucked into the first air chamber 110 through the ventilation holes of the bottom case 139 , and the airflow is further sucked into the first gas driving unit 113 and driven by the first gas.
  • the unit 113 is pushed out, and the air flow then passes through the hollow bracket 115 of the heating unit 114 and is heated by the electric heating wire 116.
  • the air flow then passes through the first filter unit 111 and is filtered by the first filter element 112 so that the odor gas molecules in the air flow are filtered (adsorbed or decomposed). ), the airflow passes through the first filter unit 111 and is discharged to the first accommodation space 101 through the opening on the top case 119 .
  • the first gas driving unit 113 further includes an integrated circuit board 130.
  • the integrated circuit board 130 is connected to the front case 117 and is disposed in the first air chamber 110.
  • the first gas driving unit 113 and the heating unit 114 are integrated with Circuit board 130 is electrically connected.
  • the surface of the integrated circuit board 130 facing the outside of the first circulation component 11 is provided with a first button 131, the second button 132 and the digital tube 133.
  • the surface of the integrated circuit board 130 facing the outside of the first circulation component 11 may be provided with various connection ports and/or auxiliary units, such as conventional and practical DC power holes 161, TYPE-C power holes 162, and cooling units in the prior art. Fan (not shown), heating unit socket 163, air inlet temperature sensor 164, air outlet temperature sensor 165.
  • the DC power hole 161 can be the power interface of the integrated circuit board 130
  • the TYPE-C power hole 162 can be an integrated circuit.
  • the board 130 is an interface for electrical signal interaction with the display area 1081.
  • the cooling fan can be a cooling unit for cooling the integrated circuit board 130.
  • the heating unit socket 163 can be an electrical connection between the heating unit 114 and the integrated circuit board 130 and for heating.
  • the electrical interface for powering the unit 114, the air inlet temperature sensor 164 and the air outlet temperature sensor 165 may be temperature sensing units (such as electronic thermometers) spaced in the first air chamber 110 to assist in temperature monitoring.
  • the digital tube 133 can be used to display four digits; among them, the two digits on the left side of the digital tube 133 can be used to display the temperature of the air inlet close to the first gas driving unit 113 in real time, which depends on the air inlet. Real-time temperature; the two digits on the right side of the digital tube 133 can be used to display the preset temperature of the air outlet of the heating unit 114 .
  • the first button 131 can be a "+" plus sign function button
  • the second button 132 can be a "-" minus sign function button.
  • the digital tube 133 can be adjusted.
  • the two digits on the right display the preset temperature.
  • the two digits on the right side of the digital tube 133 can be raised or lowered by 1°C.
  • the current setting can be confirmed. temperature and start the heating unit 114. Long pressing the first button 131 or the second button 132 for about 10 seconds can directly raise the preset temperature displayed by the two digits on the right side of the integer tube 133 to 99°C or cool it to room temperature.
  • the first gas driving unit 113 further includes a label sticker 134.
  • the label sticker 134 can be attached to the surface of the integrated circuit board 130 facing the outside of the first circulation component 11 to cover the countersunk screws or other components used for connection. Splicing traces, thereby beautifying the appearance.
  • the surface of the label sticker 134 can also be provided with a "+" plus sign icon corresponding to the first button 131 and a "-" minus sign icon corresponding to the second button 132.
  • Other labels can also be provided on the label sticker 134. Informative text or graphic logo.
  • the light-curing 3D printing device 1 further includes a second circulation component 12 .
  • the second circulation component 12 connects the internal space 100 with the outside of the light-curing 3D printing device 1 .
  • the second circulation component 12 is used to circulate the internal space 100 The gas in the filter is filtered and discharged to the outside of the light-curing 3D printing device 1 .
  • the second circulation component 12 is fixed to the fuselage cover 10.
  • the second circulation component 12 includes a second gas driving unit 123, a second filter unit 121 and an exhaust unit 126.
  • the second filter unit 121 is connected to the internal space. 100 is connected, the second gas driving unit 123 is connected with the second filter unit 121 , the second gas driving unit 123 is connected with the exhaust unit 126 , and the exhaust unit 126 is connected to the outside of the light curing 3D printing device 1 .
  • the second gas driving unit 123 includes a blowing fan 124 and a fixing bracket 125.
  • the air fan 124 is connected to the fuselage cover 10 through the fixing bracket 125, and the blower fan 124 is connected to the exhaust unit 126.
  • the second filter unit 121 includes a second filter upper shell 1211, a second filter lower shell 1212, and a second filter element 1213.
  • the second lower filter housing 1212 is connected to the fuselage cover 10 , and the second upper filter housing 1211 and the second lower filter housing 1212 are detachably connected to accommodate the second filter element 1213 .
  • the second circulation component 12 is disposed in the first accommodation space 101 and is connected to the middle plate 106 .
  • the second circulation component 12 can be disposed on any one of the four corners of the base 105 .
  • the second filter unit 121 is provided in the first accommodation space 101
  • the second gas driving unit 123 is provided in the second accommodation space 102 .
  • the middle plate 106 is provided with a through hole 1062 , which penetrates the middle plate 106 and connects the first accommodation space 101 and the second accommodation space 102 .
  • a sealing ring 129 is provided at the through hole 1062 .
  • the second filter lower shell 1212 is connected to the middle plate 106 and is clamped at the through hole 1062.
  • the fixing bracket 125 is connected to the middle plate 106 and is clamped at the through hole 1062.
  • the sealing ring 129 is at least disposed between the second filter lower shell 1212 and
  • the connection point of the middle plate 106 can further be provided at the connection point between the fixing frame 125 and the middle plate 106 to improve the sealing between the first accommodation space 101 and the second accommodation space 102 and prevent the first accommodation space from The harmful gas to be treated in 101 directly overflows without passing through the second circulation component 12.
  • the second upper filter housing 1211 and the second lower filter housing 1212 are coupled to form a hollow cylindrical shape, and the cylindrical second filter element 1213 is disposed between the second upper filter housing 1211 and the second lower filter housing 1212 middle.
  • the second upper filter housing 1211 and the second lower filter housing 1212 can be fixed with an L-shaped rotating buckle, allowing quick disassembly and assembly by rotating the second upper filter housing 1211 to facilitate rapid replacement of the second filter element 1213 containing activated carbon. .
  • the blowing fan 124 can be an existing blowing fan shaped like a snail shell.
  • the air inlet end of the blowing fan 124 is connected to the hollow fixing frame 125 to form a gas circuit.
  • the air outlet end of the blowing fan 124 It is connected with the exhaust interface 127 and forms a gas circuit.
  • the exhaust interface 127 is further connected with the aluminum foil air duct 128 and forms a gas circuit.
  • the aluminum foil air duct 128 adopts a foldable structure, and the length of 1 meter in the extended state can be compressed to 20 Centimeters in length, minimizing space usage.
  • the blower fan 124 is started to draw the gas in the first accommodation space 101 through the second filter unit 121.
  • the exhaust interface 127 may be substantially vertically connected to the second filter unit 121 .
  • the first circulation component 11 realizes controllable temperature of the molding space. After the axial flow fan at the bottom of the first circulation component 11 reversely draws and heats the air, it passes through the first filter unit 111 at the top. Eliminate odorous gases and achieve the purpose of heating and purifying the air inside the molding space.
  • the second circulation component 12 draws out the odorous gas from the molding space through the blower fan 124 installed at the bottom of the middle plate 106. After filtering the odorous gas through the second filter unit 121, it is then guided and exhausted to the outside through the aluminum foil air duct 128 to purify the air inside the molding space of the machine. the goal of.
  • the first circulation component 11 and the second circulation component 12 can effectively filter harmful gases, such as acrylic acid molecules, formed in the molding space, excluding clean and harmless gases outside the printer, and solve the problem of harmful gases leaking from existing sealed 3D printers.
  • the internal temperature of the molding space can be heated to keep the resin at the optimal working temperature and ensure the printing effect.
  • at least one of the first circulation component 11 and the second circulation component 12 can be turned on according to actual usage requirements. For example, when printing in an area with poor ventilation environment, only the first circulation component 11 can be turned on. When printing in an area with poor ventilation environment, When printing a good area, only the second circulation component 12 can be turned on. If further temperature control is required, the first circulation component 11 can also be turned on at the same time.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un dispositif d'impression 3D photodurcissable, au moyen duquel une résine photodurcissable liquide est durcie au moyen d'une irradiation de lumière pour obtenir une impression 3D. Le dispositif d'impression 3D photodurcissable comprend : un couvercle de corps, qui définit un espace interne ; et un premier ensemble de circulation, qui est disposé dans l'espace interne pour chauffer et filtrer le gaz dans l'espace interne, une première cavité de gaz étant définie à l'intérieur du premier ensemble de circulation ; le premier ensemble de circulation comprend une première unité d'entraînement de gaz, une unité de chauffage et une première unité de filtration, qui sont agencées dans la première cavité de gaz et espacées les unes des autres ; et la première unité d'entraînement de gaz est configurée de telle sorte que le gaz à l'extérieur de la première cavité de gaz est aspiré dans la première cavité de gaz, passe à travers l'unité de chauffage et la première unité de filtration, et est ensuite délivré à l'extérieur de la première cavité de gaz. Le dispositif d'impression 3D photodurcissable peut effectuer une filtration, une purification et une régulation de température pour l'environnement gazeux interne.
PCT/CN2023/099997 2022-09-15 2023-06-13 Dispositif d'impression 3d photodurcissable WO2024055652A1 (fr)

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CN202222440781.9 2022-09-15
CN202222440781.9U CN218256805U (zh) 2022-09-15 2022-09-15 光固化3d打印设备

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CN218256805U (zh) * 2022-09-15 2023-01-10 深圳市创想三维科技股份有限公司 光固化3d打印设备

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CN109203459A (zh) * 2018-07-20 2019-01-15 上海柚意三维科技有限公司 一种连续面光固化成型设置
CN211807896U (zh) * 2020-03-04 2020-10-30 深圳市智能派科技有限公司 一种具有空气过滤系统的光固化3d打印机
WO2021251688A1 (fr) * 2020-06-09 2021-12-16 주식회사 로킷헬스케어 Appareil de commande d'environnement de chambre pour imprimante tridimensionnelle
CN215512289U (zh) * 2021-07-28 2022-01-14 深圳市创想三帝科技有限公司 一种用于光固化打印的成型机构及光固化3d打印机
CN218256805U (zh) * 2022-09-15 2023-01-10 深圳市创想三维科技股份有限公司 光固化3d打印设备

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CN206528076U (zh) * 2016-10-26 2017-09-29 东莞市瑞迪三维电子科技有限公司 一种具有循环加热装置的3d打印机
CN109203459A (zh) * 2018-07-20 2019-01-15 上海柚意三维科技有限公司 一种连续面光固化成型设置
CN211807896U (zh) * 2020-03-04 2020-10-30 深圳市智能派科技有限公司 一种具有空气过滤系统的光固化3d打印机
WO2021251688A1 (fr) * 2020-06-09 2021-12-16 주식회사 로킷헬스케어 Appareil de commande d'environnement de chambre pour imprimante tridimensionnelle
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CN218256805U (zh) * 2022-09-15 2023-01-10 深圳市创想三维科技股份有限公司 光固化3d打印设备

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