CN213701662U - Resin psammitolite 3D printing apparatus - Google Patents
Resin psammitolite 3D printing apparatus Download PDFInfo
- Publication number
- CN213701662U CN213701662U CN202021579322.3U CN202021579322U CN213701662U CN 213701662 U CN213701662 U CN 213701662U CN 202021579322 U CN202021579322 U CN 202021579322U CN 213701662 U CN213701662 U CN 213701662U
- Authority
- CN
- China
- Prior art keywords
- sand
- printing
- assembly
- resin
- light source
- 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.)
- Active
Links
- 239000011347 resin Substances 0.000 title claims abstract description 68
- 229920005989 resin Polymers 0.000 title claims abstract description 68
- 238000010146 3D printing Methods 0.000 title claims abstract description 29
- 239000004576 sand Substances 0.000 claims abstract description 131
- 238000007639 printing Methods 0.000 claims abstract description 69
- 238000000016 photochemical curing Methods 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000001723 curing Methods 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000003892 spreading Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000007711 solidification Methods 0.000 abstract description 5
- 230000008023 solidification Effects 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 126
- 238000000034 method Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003760 hair shine Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polysiloxane acrylate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Images
Abstract
The utility model discloses a 3D printing device for a resin sand core, which comprises a frame, a printing platform, a sand processing assembly, a printing assembly, a light source assembly and a lifting assembly; print platform passes through lifting unit and sets up in the frame, and sand processing assembly sets up in the frame for spread sand and/or sand removal on print platform, print assembly and light source subassembly setting are at the frame top, and print assembly is used for spraying light-cured resin on the sand bed. The utility model discloses a setting of printing subassembly and light source subassembly can carry out normal position photocuring behind every layer of sand bed light-cured resin, has solved the current problem that can be heated many times and need the manufacturing efficiency and the precision be wayward that sufficient cool time leads to through the solidification of rising temperature.
Description
Technical Field
The utility model relates to a 3D printing apparatus technical field, concretely relates to resin psammitolite 3D printing apparatus.
Background
At present, the precoated sand process is commonly adopted in the casting field to manufacture and form a mold core. Along with the rise of 3D printing equipment, 3D printing equipment has received extensive application in the sand mould preparation field by virtue of its advantage that shortens development cycle greatly owing to save mould manufacture process.
The sand core of the existing casting-molded part is generally composed of quartz sand, cannot be directly molded by the traditional laser 3D printing technology (such as SLS), but is formed by spraying quantitative resin or curing agent in a selected area through a printing head and finally heating and curing; and thus build up layer by layer into a three-dimensional part. However, in the heat curing process, the resin is heated many times and requires a sufficient cooling time, so that the manufacturing efficiency is lowered and the control in terms of accuracy is not easy.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a resin psammitolite 3D printing apparatus through the setting of printing subassembly and light source subassembly, can carry out normal position photocuring behind every layer of sand bed spray photocuring resin, and curing process is simple, and need not heat repeatedly, has solved the current difficult problem of control of manufacturing efficiency and precision that leads to through the solidification that heaies up.
The utility model adopts the technical proposal that:
A3D printing device for a resin sand core comprises a rack, a printing platform, a sand processing assembly, a printing assembly, a light source assembly and a lifting assembly; print platform pass through lifting unit set up in the frame, sand processing assembly set up in the frame, be used for on the print platform spread sand and/or sand removal, print the subassembly with the light source subassembly sets up the frame top, print the subassembly and be used for spraying light-cured resin on the sand bed.
Preferably, the printing assembly comprises a plurality of printing heads, the plurality of light source assemblies are used for in-situ curing of the light-curable resin, and the printing heads and the light source assemblies are uniformly and alternately arranged on the frame.
Preferably, the diameter of the printing head is 30-60 μm.
Preferably, the distance between the light source assembly and the surface of the sand layer to be solidified is 1-1.5 cm when the light source assembly is used.
Preferably, the light source component emits light with a wavelength of 365-395 nm.
Preferably, the sand processing assembly comprises a sand paving structure and a sand cleaning structure, and the sand paving structure and the sand cleaning structure are arranged on the rack.
Preferably, the sand processing assembly further comprises a sand supply structure, and the sand supply structure is communicated with the sand paving structure and the sand cleaning structure respectively.
Preferably, the sand used by the sand processing component has a particle size of 0.25-0.75 mm.
Preferably, print platform includes the print bench and spreads the powder platform, the print bench set up in lifting unit is last, spread the powder platform set up in on the print bench, sand processing assembly set up in spread powder bench top.
Preferably, the lifting assembly comprises a lifting platform and a driving motor, the lifting platform is arranged between the rack and the printing platform, and the driving motor is connected with the lifting platform.
Compared with the prior art, the utility model discloses a setting of print platform, sand processing subassembly, printing subassembly and light source subassembly, sand processing subassembly can spread sand and/or sand removal on print platform and handle, and printing subassembly can spray light-cured resin on the sand bed, and the light source subassembly carries out the normal position solidification to the sand bed that sprays light-cured resin to print the solidification layer by layer, effectively solved the current problem that can be heated many times and need enough cooling time to lead to manufacturing efficiency and precision be difficult to control through the solidification of rising temperature; simultaneously the utility model has the advantages of simple structure, convenient to use, the shaping is efficient, the precision is high.
Drawings
Fig. 1 is a structural diagram of a 3D printing apparatus for resin sand cores provided by an embodiment of the present invention;
fig. 2 is a structural diagram of another visual angle of the resin sand core 3D printing apparatus provided by the embodiment of the present invention;
fig. 3 is a state diagram of a resin sand core 3D printing apparatus provided by the embodiment of the present invention before printing;
fig. 4 is a state diagram of a resin sand core 3D printing apparatus provided by an embodiment of the present invention during printing;
fig. 5 is a state diagram of the resin sand core 3D printing apparatus provided by the embodiment of the present invention after printing is completed;
fig. 6 is the embodiment of the utility model provides a resin psammitolite 3D printing apparatus's printing flow chart.
In the figure: 1. a frame; 2. a printing platform; 21. a printing table; 22. a powder spreading table; 3. a sand handling assembly; 31. paving a sand structure; 32. a sand removal structure; 4. a printing assembly; 41. a print head; 5. a light source assembly; 6. a lifting assembly; 61. a lifting platform; 62. the motor is driven.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a resin sand core 3D printing apparatus, as shown in fig. 1 and fig. 2, including frame 1, print platform 2, sand processing assembly 3, printing assembly 4, light source subassembly 5 and lifting unit 6; print platform 2 through lifting unit 6 set up in the frame 1, sand treatment component 3 set up in the frame 1, be used for spread sand and/or sand removal on print platform 2, print component 4 with light source subassembly 5 sets up 1 top of frame, print component 4 is used for spraying light-cured resin on the sand bed.
The concrete structure is as follows: lifting unit 6 sets up in frame 1, and lifting unit 6's top is provided with print platform 2, and sand treatment component 3 sets up in frame 1 for shop's sand and/or sand removal on print platform 2, light source subassembly 5 and print component 4 all set up in frame 1 top, are used for spraying light-cured resin on the sand bed, and carry out the photocuring to light-cured resin.
Like this, sand processing assembly 3 is the sanding on print platform 2, then print subassembly 4 and spout light-cured resin on the sand bed, light source subassembly 5 shines light-cured resin, thereby make its normal position photocuring, the first layer is printed and is accomplished this moment, print platform 2 descends, sand processing assembly 3 is sanding on the first layer that prints, second floor sand, print subassembly 4 and spout light-cured resin on second floor sand, light source subassembly 5 shines light-cured resin, thereby make its normal position photocuring, the second floor is printed and is accomplished this moment, repeat printing like this, until printing N layers, the work piece is printed and is accomplished promptly, then sand processing assembly 3 carries out the sand removal, obtain the work piece that prints, the psammitolite after the shaping.
In specific implementation, the formed sand core can be used for casting furnace ends of cooking utensils (cast iron or cast aluminum) and complex parts of kitchen appliances.
In specific implementation, the sand processing device further comprises a control assembly, the sand processing assembly 3, the printing assembly 4, the light source assembly 5 and the lifting assembly 6 are connected with the control assembly, the control assembly can receive printing information and give out instructions of the assemblies, namely, the sand processing assembly 3 carries out sanding or sand cleaning treatment according to signals of the control assembly, the printing assembly 4 sprays light-cured resin to a paved sand layer according to the instructions of the control assembly, and the light source assembly 5 irradiates the sand layer sprayed with the light-cured resin to carry out light curing on the sand layer, so that the sand layer is printed layer by layer, and finally a sand core is formed; the lifting assembly 6 is used for lifting the printing platform 2 according to the signal of the control assembly.
The control assembly is an existing controller, a control cabinet and the like.
As shown in fig. 1, the printing platform 2 includes a printing table 21 and a powder spreading table 22, the printing table 21 is disposed on the lifting component 6, the powder spreading table 22 is disposed on the printing table 21, and the sand processing component 3 is disposed above the powder spreading table 22.
In a specific implementation, the lifting assembly 6 includes a lifting table 61 and a driving motor 62, the lifting table 61 is disposed between the frame 1 and the printing platform 2, that is, the lifting table 61 is disposed between the frame 1 and the printing platform 21, and the driving motor 62 is connected to the lifting table 61.
In this way, the lifting table 61 is driven by the driving motor 62 to lift, so as to drive the printing table 21 and the powder laying table 22 to lift, and the powder laying table 22 is at a proper sanding and printing height.
In the concrete implementation, the powder paving machine further comprises a base, the base is arranged at the bottom in the rack 1, the lifting table 61 is arranged on the base, the printing table 21 is arranged on the lifting table 61, and the lifting table 61 controls the lifting of the printing table 21 under the driving of the driving motor 62, so that the powder paving table 22 is at a proper sand paving height and a proper light curing height.
As shown in fig. 1, the printing assembly 4 includes a plurality of print heads 41, the plurality of light source assemblies 5 are used for curing the light-curable resin in situ, and the print heads 41 and the light source assemblies 5 are uniformly and alternately arranged on the frame 1.
Like this, printer head 4 can carry out the injection of photocuring resin according to actual need, and light source subassembly 5 can carry out photocuring to the sand bed after the injection, and printer head 41 and light source subassembly 5 crisscross even setting, also interval setting, can make the photocuring resin that printer head 41 jetted more accurate to the more even irradiation of light that makes light source subassembly 5 send is on the work piece, and photocuring is effectual.
Moreover, the light curing is adopted, so that the adverse effect caused by heating curing is avoided.
In specific implementation, the light-cured resin can be water-based light-cured resin, such as water-based UV paint, and the water-based UV paint consists of 50-93 parts of UV resin, 1.2-3 parts of photoinitiator, 0.5-1.9 parts of ultraviolet absorbent, 0.2-0.6 part of wetting agent, 0.3-1 part of leveling agent and 5-10 parts of solvent; wherein the UV resin is at least one of acrylate, epoxy acrylate, polyurethane acrylate and polysiloxane acrylate.
However, the light-curable resin is not limited to the above-described resin, and any light-curable resin that can be applied to the present embodiment according to the present embodiment is applicable to the present embodiment.
In specific implementation, the diameter of the printing head 41 is 30-60 μm; the distance between the light source assembly 5 and the surface of the sand layer for curing is 1-1.5 cm when the light source assembly is used, namely the height difference between the light source assembly 5 and the surface of a workpiece is 1-1.5 cm when the light source assembly is cured, and the wavelength of light emitted by the light source assembly 5 is 365-395 nm.
As shown in fig. 2, the sand handling assembly 3 includes a sand laying structure 31 and a sand cleaning structure 32, and both the sand laying structure 31 and the sand cleaning structure 32 are disposed on the frame 1.
Thus, the sand paving structure 31 realizes sand paving, and the sand cleaning structure 32 realizes sand cleaning.
In specific implementation, the sand blasting and spreading structure 31 and the sand cleaning structure 32 are both existing structures, and the existing structures capable of realizing the sand blasting and sand cleaning effects of the embodiment are all suitable for the embodiment.
In order to ensure the supply of sand, the sand handling assembly 3 further comprises a sand supply structure, which is respectively communicated with the sand laying structure 31 and the sand cleaning structure 32.
In specific implementation, the sand supply structure can comprise a sand tank and a delivery pump, the sand paving structure 31 and the sand cleaning structure 32 are respectively communicated with the sand tank through the delivery pump, a stirrer is arranged in the sand tank as required, and a sand inlet is further formed in the sand tank. However, the sand supply structure is not limited to the above structure, and the sand supply structure applied to this embodiment can be applied to this embodiment.
In specific implementation, according to the printing thickness of each layer, the grain diameter of the sand used by the sand processing component 3 is 0.25-0.75 mm.
In a specific implementation, the resin sand core 3D printing apparatus further includes a using method, that is, a method for printing the resin sand core, as shown in fig. 3 to 6, the method specifically includes: introducing a printing program into the control assembly, starting a 3D printing device of the resin sand core, paving sand on the powder paving table 22 by a sand paving structure 31 in the sand processing assembly 3, then spraying light-cured resin on a sand layer by a printing head 41 in the printing assembly 4, irradiating the light-cured resin by a light source assembly 5 so as to perform in-situ light curing on the resin, completing printing of the first layer at the moment, descending the lifting assembly 6, namely descending the lifting table 61, descending the printing platform 2, paving sand on the printed first layer by the sand processing assembly 3, namely, spraying the light-cured resin on the second layer by the printing assembly 4, irradiating the light-cured resin by the light source assembly 5 so as to perform in-situ light curing, completing printing of the second layer at the moment, repeating the printing till N layers are printed, namely, the workpieces are printed, then cleaning the sand by the sand processing assembly 3 to obtain the printed workpieces, namely the formed sand core.
The working principle is as follows: when the resin psammitolite 3D printing apparatus of this embodiment uses, shop's sand structure 31 is shop sand on shop's powder platform 22, then print head 41 sprays light-cured resin on the sand bed, light source subassembly 5 shines light-cured resin, thereby make its normal position photocuring, this moment the first floor is printed and is accomplished, elevating platform 61 descends, print platform 2 descends, shop's sand structure 31 is shop sand on the first floor that prints, second floor sand, it jets light-cured resin on second floor sand to print head 41, light source subassembly 5 shines light-cured resin, thereby make its normal position photocuring, the second floor prints the completion this moment, repeated printing like this, until printing N layer, the work piece prints the completion promptly, then clear sand structure 32 clears sand, obtain the good work piece of printing, the psammitolite after the shaping.
According to the embodiment, through the arrangement of the printing platform, the sand processing assembly, the printing assembly and the light source assembly, the sand processing assembly can carry out sand laying and/or sand cleaning on the printing platform, the printing assembly can spray the light-cured resin on the sand layer, and the light source assembly carries out in-situ curing on the sand layer sprayed with the light-cured resin, so that printing and curing are carried out layer by layer, and the problems that the existing sand layer is heated for multiple times through temperature rise curing and the manufacturing efficiency and precision are difficult to control due to the fact that enough cooling time is needed are effectively solved; simultaneously the utility model has the advantages of simple structure, convenient to use, the shaping is efficient, the precision is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The 3D printing equipment for the resin sand core is characterized by comprising a rack (1), a printing platform (2), a sand processing assembly (3), a printing assembly (4), a light source assembly (5) and a lifting assembly (6); print platform (2) through lifting unit (6) set up in frame (1), sand processing assembly (3) set up in on frame (1), be used for spread sand and/or sand removal on print platform (2), print assembly (4) with light source subassembly (5) set up frame (1) top, print assembly (4) are used for spraying photocuring resin on the sand bed.
2. The 3D printing device for the resin sand core as claimed in claim 1, wherein the printing assembly (4) comprises a plurality of printing heads (41), the light source assembly (5) is a plurality of light source assemblies for in-situ curing of the light-curable resin, and the printing heads (41) and the light source assemblies (5) are uniformly arranged on the frame (1) in a staggered manner.
3. 3D printing equipment for resin sand cores as in claim 2, characterized in that the diameter of the printing head (41) is 30-60 μm.
4. 3D printing equipment for resin sand cores as claimed in claim 2, characterized in that the distance between the light source assembly (5) and the surface of the sand layer to be solidified is 1-1.5 cm when in use.
5. The 3D printing equipment for the resin sand core is characterized in that the light source assembly (5) emits light with the wavelength of 365-395 nm.
6. 3D printing apparatus for a resin sand core according to claim 1, wherein the sand handling assembly (3) comprises a sand spreading structure (31) and a sand cleaning structure (32), both the sand spreading structure (31) and the sand cleaning structure (32) being arranged on the frame (1).
7. A resin sand core 3D printing apparatus as claimed in claim 6, characterized in that the sand handling assembly (3) further comprises a sand supply structure communicating with the sand laying structure (31) and the sand cleaning structure (32), respectively.
8. The 3D printing equipment for the resin sand core as claimed in claim 6 or 7, wherein the sand processing component (3) uses sand with a grain size of 0.25-0.75 mm.
9. The resin sand core 3D printing device according to claim 1, wherein the printing platform (2) comprises a printing table (21) and a powder spreading table (22), the printing table (21) is arranged on the lifting assembly (6), the powder spreading table (22) is arranged on the printing table (21), and the sand processing assembly (3) is arranged above the powder spreading table (22).
10. 3D printing equipment for resin sand cores as in claim 1 or 9, characterized by that, the lifting assembly (6) comprises a lifting platform (61) and a driving motor (62), the lifting platform (61) is arranged between the frame (1) and the printing platform (2), and the driving motor (62) is connected with the lifting platform (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579322.3U CN213701662U (en) | 2020-08-03 | 2020-08-03 | Resin psammitolite 3D printing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021579322.3U CN213701662U (en) | 2020-08-03 | 2020-08-03 | Resin psammitolite 3D printing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213701662U true CN213701662U (en) | 2021-07-16 |
Family
ID=76766901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021579322.3U Active CN213701662U (en) | 2020-08-03 | 2020-08-03 | Resin psammitolite 3D printing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213701662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099984A (en) * | 2023-04-12 | 2023-05-12 | 邢台速锐网络科技有限公司 | 3D printing sand mold product material and 3D printing sand mold method and device |
-
2020
- 2020-08-03 CN CN202021579322.3U patent/CN213701662U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116099984A (en) * | 2023-04-12 | 2023-05-12 | 邢台速锐网络科技有限公司 | 3D printing sand mold product material and 3D printing sand mold method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI729208B (en) | Method and system for additive-ablative fabrication | |
| CN104325643B (en) | A kind of method and its device for making 3D products | |
| JP6122107B2 (en) | How to build a 3D compact | |
| KR101801964B1 (en) | Composition for 3D laminate printer using synthetic resin and ceramic powder | |
| CN108339937A (en) | A kind of high-performance and high accuracy sand mold（Core）3D printing manufacturing process | |
| CN102688829B (en) | Resin coating device and method for manufacturing photo-cure quick prototype | |
| JP2006137173A (en) | Three dimensional printing prototyping system | |
| CN213701662U (en) | Resin psammitolite 3D printing apparatus | |
| CN103568322A (en) | Spray coating type light-curing three-dimensional printer | |
| KR20150079119A (en) | Three dimensional printer and control method thereof | |
| CN107009614B (en) | The Method of printing of a kind of 3D product and for the 3D printer in this method | |
| KR20180021186A (en) | Method for manufacturing three dimensional shaped sculpture | |
| US20160114529A1 (en) | Three-dimensional object manufacturing method, three-dimensional object manufacturing device, and three-dimensional object | |
| KR20190019859A (en) | Method and machine for manufacturing at least one piece made of at least one ceramic and/or metallic material by the technique of additive manufacturing | |
| CN108947494A (en) | A kind of ceramic material increasing material manufacturing method | |
| CN110641016A (en) | Three-dimensional powder forming device and method | |
| JP2017031495A (en) | Method for manufacturing three-dimensional molded object, apparatus for manufacturing three-dimensional molded object, and three-dimensional molded object | |
| CN108162391A (en) | A kind of laser 3D printing platform for making casting sand type | |
| CN108724431A (en) | A kind of ceramic powders bonding printer | |
| CN212857633U (en) | 3D sand mold printer | |
| WO2014012314A1 (en) | Device for processing light guide plate template and method for processing same | |
| JPH06315986A (en) | Optical shaping apparatus | |
| JP2016179584A (en) | Composition for manufacturing three-dimensional molded object and three-dimensional molded object | |
| KR20180101732A (en) | 3d printer | |
| CN209304751U (en) | A kind of ceramic powders bonding printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |