CN214110782U - Micro-droplet jetting ceramic 3D printer - Google Patents
Micro-droplet jetting ceramic 3D printer Download PDFInfo
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- CN214110782U CN214110782U CN202022695029.XU CN202022695029U CN214110782U CN 214110782 U CN214110782 U CN 214110782U CN 202022695029 U CN202022695029 U CN 202022695029U CN 214110782 U CN214110782 U CN 214110782U
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Abstract
The utility model discloses a droplet sprays pottery 3D printer, which comprises a bod, the organism middle part is provided with print platform, the print platform both sides are provided with the dust absorption mount pad, the fixed telescopic link that is provided with on the dust absorption supporting seat, the end that stretches out of telescopic link links to each other with the dust absorption ring through the connecting block, the dust absorption ring overlaps and establishes on print platform, the dust absorption ring links to each other with the dust absorption subassembly through the dust absorption pipe, the print platform top is provided with sweeps the ring, sweep ring and organism fixed connection, it is provided with a plurality of nozzles that sweep to encircle the lower extreme, sweep the ring through sweep the pipe with sweep the fan and link to each other, it links to each other with the organism through sweeping the support to sweep the fan. The utility model has the advantages of it is effectual to beat the cooling of printer head assembly, has guaranteed print platform's cleanness, has improved the quality of printing the product and has removed the convenience.
Description
Technical Field
The utility model relates to a 3D printer technical field, concretely relates to droplet sprays pottery 3D printer.
Background
3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like and by using a digital model file as a base and by using a layer-by-layer printing mode, and the 3D printing is usually realized by using a digital technical material printer.
The 3D printer is often made at the mould, fields such as industrial design are used for making the model, at the jewelry, shoes, the car, all use in fields such as space flight, but current droplet sprays ceramic 3D printer and exists and open inconveniently, and the printer is inconvenient to be removed, and it is poor to beat printer head cooling effect, when carrying out 3D and print, if there is the dust on the mesa of printing, when printing, the dust can get into in the printing product, thereby influence the finished product quality of printing, when clearing up the table surface who prints, the manual work is cleaned, not only consume the labour, and efficiency is lower, thereby unusual inconvenience.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a droplet-jetting ceramic 3D printer, which can cool down the printer while working through a heat dissipation fan and a heat dissipation filter screen in the print head assembly, thereby enhancing the cooling effect of the print head assembly; the dust is removed through the dust absorption ring, the blowing ring and the dust absorption assembly, and the product quality is guaranteed. The utility model has the advantages of it is effectual to beat the cooling of printer head assembly, has guaranteed print platform's cleanness, has improved the quality of printing the product and has removed the convenience.
The utility model aims at realizing through the following technical scheme:
the utility model provides a droplet sprays pottery 3D printer, includes the organism, its characterized in that: the printing platform comprises a machine body, and is characterized in that a printing platform is arranged in the middle of the machine body, dust collection mounting seats are arranged on two sides of the printing platform, telescopic rods are fixedly arranged on the dust collection mounting seats, the extending ends of the telescopic rods are connected with dust collection rings through connecting blocks, the dust collection rings are sleeved on the printing platform and connected with dust collection components through dust collection pipes, the blowing and sweeping rings are arranged above the printing platform and fixedly connected with the machine body, a plurality of blowing and sweeping nozzles are arranged at the lower ends of the blowing and sweeping rings, the blowing and sweeping rings are connected with a blowing and sweeping fan through the blowing and sweeping pipes, and the blowing and sweeping fan is connected with the machine body through a blowing and sweeping support.
Preferably, dust collection holes are uniformly formed in the inner ring of the dust collection ring.
Preferably, the dust absorption subassembly includes the dust removal case, be provided with the chamber of breathing in, washing chamber and filter chamber in the dust removal case, be provided with dust absorption fan in the chamber of breathing in, dust absorption fan one end links to each other with the dust absorption pipe, and the other end links to each other with the scavenge pipe, the scavenge pipe inserts in the washing liquid of wasing the intracavity, it is linked together with the filter chamber to wash the chamber, be provided with dust absorption filter screen, layer and active carbon adsorption layer absorb water in the filter chamber, the filter chamber upper end links to each other with the outlet duct.
Preferably, the dust removal box is connected with the machine body through a dust collection bracket.
Preferably, a drain pipe is arranged at the lower part of the cleaning cavity, and a drain valve is arranged on the drain pipe.
Preferably, the machine body comprises a shell, a feed inlet arranged at the upper end of the shell and a triaxial manipulator arranged on the inner side of the right end of the shell, a printing head assembly is fixedly connected to the front end of the triaxial manipulator, and a material pipe is arranged between the printing head assembly and the feed inlet.
Preferably, it includes the printing box to beat the head assembly, printing box and triaxial manipulator front end fixed connection, print box one side and install radiator fan, and print incasement portion and be provided with the printing shower nozzle, the printing shower nozzle links to each other with the material pipe, one side that radiator fan was kept away from to the printing box is provided with the heat dissipation air intake, heat dissipation air intake department is provided with the heat dissipation filter screen, one side of radiator fan is located the inside of printing box and is provided with windy passageway.
Preferably, the included angle between the purge nozzle and the horizontal direction is 30-45 degrees.
Preferably, a sliding wheel is arranged below the machine body.
The working principle is as follows: the machine body is moved to a designated place through the sliding wheel, the material pipe in the feeding port is connected with the material groove, materials in the printing head assembly are sprayed to the upper end of the printing platform according to a designated position under the action of the three-axis manipulator, the heat dissipation fan and the heat dissipation filter screen are arranged on the printing head assembly, air is blown into the printing box through the heat dissipation filter screen and directly blown to the spray head, hot air after thermal circulation is discharged through the heat dissipation fan, the spray head is cooled through circulation, the problem of poor cooling effect of the spray head is effectively solved, and printing is completed; when dust on the printing platform needs to be cleaned, the dust absorption ring is driven to move upwards through the telescopic rod, so that the dust absorption ring is higher than the printing platform, the dust absorption fan is started, the dust on the printing platform is absorbed into the cleaning cavity from the dust absorption hole and the dust absorption pipe, the cleaning liquid in the cleaning cavity removes the dust, the gas with the dust removed sequentially passes through the dust absorption filter screen, the water absorption layer and the activated carbon adsorption layer in the filter cavity, the dust and the cleaning liquid are further removed, and finally the gas is discharged through the gas outlet pipe; meanwhile, the blowing fan is started, and blowing air blows dust in the middle of the printing platform to the periphery, so that dust can be conveniently sucked by the dust suction ring.
The beneficial effects of this technical scheme are as follows:
the utility model provides a droplet sprays pottery 3D printer, makes the printer cool down while working through the cooling fan and the heat dissipation filter screen in the print head subassembly, strengthens the cooling effect of print head subassembly; the dust is removed through the dust absorption ring, the blowing ring and the dust absorption assembly, and the product quality is guaranteed. The utility model has the advantages of it is effectual to beat the cooling of printer head assembly, has guaranteed print platform's cleanness, has improved the quality of printing the product and has removed the convenience.
Two, the utility model provides a pair of droplet sprays pottery 3D printer, dust absorption ring inner circle evenly is provided with the dust absorption hole for dust absorption effect is better.
Three, the utility model provides a pair of droplet sprays pottery 3D printer, dust on the print platform inhales from dust absorption hole and dust absorption pipe and washs the intracavity, and the dust is got rid of to the washing liquid that washs the intracavity, and the gas after going out the dust loops through the dust absorption filter screen that filters the intracavity, absorbs water layer and active carbon adsorption layer, further goes out dust and washing liquid, discharges through the outlet duct at last, when accomplishing the print platform and remove dust, effectively reduces environmental pollution.
Fourth, the utility model provides a pair of droplet sprays pottery 3D printer, the dust removal case passes through the dust absorption support and links to each other with the organism for it is more convenient that the dust removal case is dismantled.
Five, the utility model provides a pair of droplet sprays pottery 3D printer, the radiator fan and the heat dissipation filter screen that set up on the printhead assembly, wind blows into the printing incasement through the heat dissipation filter screen, makes wind directly blow to the shower nozzle, and hot-blast passing cooling fan discharge after the thermal cycle so circulate, cools off the shower nozzle, has effectively solved the relatively poor problem of cooling effect of shower nozzle.
Six, the utility model provides a pair of ceramic 3D printer is sprayed to droplet sweeps contained angle that nozzle and horizontal direction are 30-45 for it is better to sweep the effect.
Seventhly, the utility model provides a pair of ceramic 3D printer is sprayed to droplet, the setting up of movable pulley makes the organism remove more convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the dust collecting ring of the present invention;
FIG. 3 is a schematic view of the dust collecting assembly of the present invention;
FIG. 4 is a schematic view of a printhead assembly according to the present invention;
wherein: 1. a body; 1.1, a shell; 1.2, a feed inlet; 1.3, a three-axis manipulator; 1.4, a printhead assembly; 1.5, a material pipe; 1.6, a printing box; 1.7, a wind dispersing fan; 1.8, printing a spray head; 1.9, a heat dissipation filter screen; 1.10, a wind channel; 2. a printing platform; 3. a dust collection mounting base; 4. a telescopic rod; 5. a dust collecting ring; 5.1, dust collection holes; 6. a dust collection assembly; 6.1, a dust removal box; 6.2, an air suction cavity; 6.3, cleaning the cavity; 6.4, a filter cavity; 6.5, a dust collection fan; 6.6, cleaning the tube; 6.7, dust collection and filtration; 6.8, a water absorbing layer; 6.9, an activated carbon adsorption layer; 6.10, an air outlet pipe; 6.11, a dust removal bracket; 6.12, a drain pipe; 6.13, a drain valve; 7. a dust collection pipe; 8. a purge ring; 8.1, purging a nozzle; 8.2, purging a pipe; 8.3, purging the fan; 8.4, purging the bracket; 9. a sliding wheel.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1
As a most basic embodiment of the present invention, this example discloses a droplet ejection ceramic 3D printer, as shown in fig. 1, comprises a machine body 1, a printing platform 2 is arranged in the middle of the machine body 1, dust suction mounting seats 3 are arranged on two sides of the printing platform 2, the dust collection mounting seat 3 is fixedly provided with a telescopic rod 4, the extending end of the telescopic rod 4 is connected with a dust collection ring 5 through a connecting block, the dust absorption ring 5 is sleeved on the printing platform 2, the dust absorption ring 5 is connected with the dust absorption component 6 through a dust absorption pipe 7, a blowing ring 8 is arranged above the printing platform 2, the blowing ring 8 is fixedly connected with the machine body 1, the lower end of the blowing ring 8 is provided with a plurality of blowing nozzles 8.1, the blowing ring 8 is connected with a blowing fan 8.3 through a blowing pipe 8.2, and the blowing fan 8.3 is connected with the machine body 1 through a blowing support 8.4.
Example 2
As a preferred embodiment of the present invention, this example discloses a droplet ejection ceramic 3D printer, as shown in fig. 1, comprises a machine body 1, a printing platform 2 is arranged in the middle of the machine body 1, dust suction mounting seats 3 are arranged on two sides of the printing platform 2, the dust collection mounting seat 3 is fixedly provided with a telescopic rod 4, the extending end of the telescopic rod 4 is connected with a dust collection ring 5 through a connecting block, the dust absorption ring 5 is sleeved on the printing platform 2, the dust absorption ring 5 is connected with the dust absorption component 6 through a dust absorption pipe 7, a blowing ring 8 is arranged above the printing platform 2, the blowing ring 8 is fixedly connected with the machine body 1, the lower end of the blowing ring 8 is provided with a plurality of blowing nozzles 8.1, the blowing ring 8 is connected with a blowing fan 8.3 through a blowing pipe 8.2, and the blowing fan 8.3 is connected with the machine body 1 through a blowing support 8.4.
As shown in fig. 2, preferably, dust suction holes 5.1 are uniformly formed in the inner ring of the dust suction ring 5.
As shown in fig. 3, preferably, the dust collection assembly 6 includes a dust collection box 6.1, an air suction cavity 6.2, a cleaning cavity 6.3 and a filter cavity 6.4 are provided in the dust collection box 6.1, a dust collection fan 6.5 is provided in the air suction cavity 6.2, one end of the dust collection fan 6.5 is connected with a dust collection pipe 7, the other end is connected with the cleaning pipe 6.6, the cleaning pipe 6.6 is inserted into cleaning liquid in the cleaning cavity 6.3, the cleaning cavity 6.3 is communicated with the filter cavity 6.4, a dust collection filter screen 6.7, a water absorption layer 6.8 and an active carbon adsorption layer 6.9 are provided in the filter cavity 6.4, and the upper end of the filter cavity 6.4 is connected with an air outlet pipe 6.10.
Preferably, the dust removal box 6.1 is connected with the machine body 1 through a dust collection bracket.
Preferably, a drain pipe 6.12 is arranged at the lower part of the cleaning cavity 6.3, and a drain valve 6.13 is arranged on the drain pipe 6.12.
Example 3
As a preferred embodiment of the present invention, this example discloses a droplet ejection ceramic 3D printer, as shown in fig. 1, comprises a machine body 1, a printing platform 2 is arranged in the middle of the machine body 1, dust suction mounting seats 3 are arranged on two sides of the printing platform 2, the dust collection mounting seat 3 is fixedly provided with a telescopic rod 4, the extending end of the telescopic rod 4 is connected with a dust collection ring 5 through a connecting block, the dust absorption ring 5 is sleeved on the printing platform 2, the dust absorption ring 5 is connected with the dust absorption component 6 through a dust absorption pipe 7, a blowing ring 8 is arranged above the printing platform 2, the blowing ring 8 is fixedly connected with the machine body 1, the lower end of the blowing ring 8 is provided with a plurality of blowing nozzles 8.1, the blowing ring 8 is connected with a blowing fan 8.3 through a blowing pipe 8.2, and the blowing fan 8.3 is connected with the machine body 1 through a blowing support 8.4.
As shown in fig. 2, preferably, dust suction holes 5.1 are uniformly formed in the inner ring of the dust suction ring 5.
As shown in fig. 3, preferably, the dust collection assembly 6 includes a dust collection box 6.1, an air suction cavity 6.2, a cleaning cavity 6.3 and a filter cavity 6.4 are provided in the dust collection box 6.1, a dust collection fan 6.5 is provided in the air suction cavity 6.2, one end of the dust collection fan 6.5 is connected with a dust collection pipe 7, the other end is connected with the cleaning pipe 6.6, the cleaning pipe 6.6 is inserted into cleaning liquid in the cleaning cavity 6.3, the cleaning cavity 6.3 is communicated with the filter cavity 6.4, a dust collection filter screen 6.7, a water absorption layer 6.8 and an active carbon adsorption layer 6.9 are provided in the filter cavity 6.4, and the upper end of the filter cavity 6.4 is connected with an air outlet pipe 6.10.
Preferably, the dust removal box 6.1 is connected with the machine body 1 through a dust collection bracket.
Preferably, a drain pipe 6.12 is arranged at the lower part of the cleaning cavity 6.3, and a drain valve 6.13 is arranged on the drain pipe 6.12.
Preferably, the machine body 1 comprises a shell 1.1, a feed inlet 1.2 arranged at the upper end of the shell 1.1 and a three-axis manipulator 1.3 arranged at the inner side of the right end of the shell 1.1, wherein a printing head assembly 1.4 is fixedly connected to the front end of the three-axis manipulator 1.3, and a material pipe 1.5 is arranged between the printing head assembly 1.4 and the feed inlet 1.2.
As shown in fig. 4, preferably, print head assembly 1.4 includes print box 1.6, print box 1.6 and three-axis manipulator 1.3 front end fixed connection, radiator fan is installed to print box 1.6 one side, and print box 1.6 is inside to be provided with print shower nozzle 1.8, print shower nozzle 1.8 and material pipe 1.5 and link to each other, print box 1.6 keeps away from radiator fan's one side and is provided with the heat dissipation air intake, heat dissipation air intake department is provided with heat dissipation filter screen 1.9, one side of radiator fan is located print box 1.6's inside and is provided with wind channel 1.10.
Preferably, the angle between the purge nozzle 8.1 and the horizontal is 30-45 °.
Preferably, a sliding wheel 9 is arranged below the machine body 1.
The working principle is as follows: the machine body 1 is moved to a designated place through the sliding wheel 9, the material pipe 1.5 in the feeding hole 1.2 is connected with a material groove, materials in the printing head assembly 1.4 are sprayed at the upper end of the printing platform 2 according to a designated position under the action of the three-axis manipulator 1.3, the heat dissipation fan and the heat dissipation filter screen 1.9 are arranged on the printing head assembly 1.4, air is blown into the printing box 1.6 through the heat dissipation filter screen 1.9, the air is directly blown to the spray head, hot air after thermal circulation is discharged through the heat dissipation fan, the spray head is cooled through circulation, the problem of poor cooling effect of the spray head is effectively solved, and printing is completed; when dust on the printing platform 2 needs to be cleaned, the telescopic rod 4 drives the dust absorption ring 5 to move upwards, so that the dust absorption ring 5 is higher than the printing platform 2, the dust absorption fan 6.5 is started, dust on the printing platform 2 is absorbed into the cleaning cavity 6.3 from the dust absorption hole 5.1 and the dust absorption pipe 7, the cleaning liquid in the cleaning cavity 6.3 removes the dust, the gas with the dust removed out sequentially passes through the dust absorption filter screen 6.7, the water absorption layer 6.8 and the active carbon adsorption layer 6.9 in the filter cavity 6.4, the dust and the cleaning liquid are further removed, and finally the gas is discharged through the gas outlet pipe 6.10; meanwhile, the blowing fan 8.3 is started, and the blowing wind blows dust in the middle of the printing platform 2 to the periphery, so that the dust collection ring 5 can conveniently collect dust.
The beneficial effects of this technical scheme are as follows:
the utility model provides a droplet sprays pottery 3D printer, through the cooling fan and the heat dissipation filter screen 1.9 in the printer head subassembly 1.4 make the printer work the simultaneous cooling, strengthen the cooling effect of printer head subassembly 1.4; the dust is removed through the arranged dust absorption ring 5, the blowing ring 8 and the dust absorption assembly 6, and the product quality is ensured. The utility model has the advantages of it is effectual to beat printer head assembly 1.4 cooling, has guaranteed print platform 2's clean, has improved the quality of printing the product and has removed the convenience.
Dust absorption holes 5.1 are uniformly formed in the inner ring of the dust absorption ring 5, so that the dust absorption effect is better. Dust on the print platform 2 is sucked into the cleaning cavity 6.3 from the dust suction hole 5.1 and the dust suction pipe 7, dust is removed by cleaning liquid in the cleaning cavity 6.3, gas after the dust is removed sequentially passes through the dust suction filter screen 6.7 in the filter cavity 6.4, the water absorption layer 6.8 and the active carbon adsorption layer 6.9, the dust and the cleaning liquid are further removed, and finally the gas is discharged through the air outlet pipe 6.10, so that the environmental pollution is effectively reduced when the dust removal of the print platform 2 is completed. The dust removal box 6.1 is connected with the machine body 1 through a dust collection support, so that the dust removal box 6.1 is more convenient to disassemble. The radiator fan and the heat dissipation filter screen 1.9 that set up on the printhead subassembly 1.4, wind blows into in the print box 1.6 through heat dissipation filter screen 1.9, makes wind directly blow to the shower nozzle, and hot-blast through radiator fan discharge after the thermal cycle, so circulation cools off the shower nozzle, has effectively solved the relatively poor problem of cooling effect of shower nozzle. The included angle between the blowing nozzle 8.1 and the horizontal direction is 30-45 degrees, so that the blowing effect is better. The arrangement of the sliding wheel 9 makes the machine body 1 move more conveniently.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (9)
1. A droplet ejection ceramic 3D printer comprising a body (1), characterized in that: a printing platform (2) is arranged in the middle of the machine body (1), dust collection mounting seats (3) are arranged on two sides of the printing platform (2), a telescopic rod (4) is fixedly arranged on the dust collection mounting seat (3), the extending end of the telescopic rod (4) is connected with a dust collection ring (5) through a connecting block, the dust absorption ring (5) is sleeved on the printing platform (2), the dust absorption ring (5) is connected with the dust absorption component (6) through a dust absorption pipe (7), a blowing ring (8) is arranged above the printing platform (2), the blowing ring (8) is fixedly connected with the machine body (1), the lower end of the blowing ring (8) is provided with a plurality of blowing nozzles (8.1), the blowing ring (8) is connected with a blowing fan (8.3) through a blowing pipe (8.2), the purging fan (8.3) is connected with the machine body (1) through a purging support (8.4).
2. A droplet ejection ceramic 3D printer according to claim 1, wherein: dust collection holes (5.1) are uniformly formed in the inner ring of the dust collection ring (5).
3. A droplet ejection ceramic 3D printer according to claim 1, wherein: dust absorption subassembly (6) are including dust removal case (6.1), be provided with suction chamber (6.2), cleaning chamber (6.3) and filter chamber (6.4) in dust removal case (6.1), be provided with dust absorption fan (6.5) in suction chamber (6.2), dust absorption fan (6.5) one end links to each other with dust absorption pipe (7), and the other end links to each other with cleaning pipe (6.6), during cleaning solution in cleaning chamber (6.3) is washd in cleaning pipe (6.6) inserts, cleaning chamber (6.3) are linked together with filter chamber (6.4), be provided with dust absorption filter screen (6.7) in filter chamber (6.4), absorb water layer (6.8) and active carbon adsorbed layer (6.9), filter chamber (6.4) upper end links to each other with outlet duct (6.10).
4. A droplet ejection ceramic 3D printer according to claim 3, wherein: the dust removal box (6.1) is connected with the machine body (1) through a dust collection bracket.
5. A droplet ejection ceramic 3D printer according to claim 3 or 4, wherein: a drain pipe (6.12) is arranged at the lower part of the cleaning cavity (6.3), and a drain valve (6.13) is arranged on the drain pipe (6.12).
6. A droplet ejection ceramic 3D printer according to claim 1, wherein: organism (1) includes casing (1.1), sets up feed inlet (1.2) and the triaxial manipulator (1.3) of setting at casing (1.1) right-hand member inboard in casing (1.1) upper end, triaxial manipulator (1.3) front end fixedly connected with print head subassembly (1.4), be provided with between print head subassembly (1.4) and feed inlet (1.2) material pipe (1.5).
7. The droplet ejection ceramic 3D printer of claim 6, wherein: print head subassembly (1.4) is including print box (1.6), print box (1.6) and triaxial manipulator (1.3) front end fixed connection, radiator fan is installed to print box (1.6) one side, and print box (1.6) inside print shower nozzle (1.8) that is provided with, print shower nozzle (1.8) and feed pipe (1.5) link to each other, one side that radiator fan was kept away from in print box (1.6) is provided with the heat dissipation air intake, heat dissipation air intake department is provided with heat dissipation filter screen (1.9), the inside that one side of radiator fan is located print box (1.6) is provided with wind passageway (1.10).
8. A droplet ejection ceramic 3D printer according to claim 1, wherein: the included angle between the purging nozzle (8.1) and the horizontal direction is 30-45 degrees.
9. A droplet ejection ceramic 3D printer according to claim 1, wherein: a sliding wheel (9) is arranged below the machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695029.XU CN214110782U (en) | 2020-11-20 | 2020-11-20 | Micro-droplet jetting ceramic 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022695029.XU CN214110782U (en) | 2020-11-20 | 2020-11-20 | Micro-droplet jetting ceramic 3D printer |
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| CN214110782U true CN214110782U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984633A (en) * | 2023-09-25 | 2023-11-03 | 四川工程职业技术学院 | Purging device for 3D printing |
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2020
- 2020-11-20 CN CN202022695029.XU patent/CN214110782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984633A (en) * | 2023-09-25 | 2023-11-03 | 四川工程职业技术学院 | Purging device for 3D printing |
| CN116984633B (en) * | 2023-09-25 | 2023-12-22 | 四川工程职业技术学院 | Purging device for 3D printing |
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