CN114669364A

CN114669364A - Ink-jet type special ceramic 3D printing equipment

Info

Publication number: CN114669364A
Application number: CN202210208393.XA
Authority: CN
Inventors: 张硕; 袁祖婷; 李智; 寇宏超; 宋旭辉; 刘浩伯; 陈霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-28
Anticipated expiration: 2042-03-04
Also published as: CN114669364B

Abstract

The invention belongs to the technical field of 3D printing, and particularly relates to ink-jet special ceramic 3D printing equipment which comprises a printer main body and a spray head, wherein the spray head consists of a spray cylinder a and a spray cylinder b, an external connecting pipe is arranged at the top end of the spray cylinder a, a grinding material disc a and a grinding material disc b are arranged in the spray cylinder a, and two groups of flow passage holes are oppositely arranged on the grinding material disc a; a motor a and a motor b are arranged on the mounting frame, a rotating sleeve penetrates through the middle of the top end of the spraying cylinder a, a gear b is arranged at the top end of the rotating sleeve, and a gear a meshed with the gear b is arranged on a main shaft of the motor a; a rotating shaft penetrates through the rotating sleeve, the top end of the rotating shaft is connected with a main shaft of a motor b, and a spiral conveying rod is arranged at the bottom end of the rotating shaft; abrasive material dish a inside has the installation cavity, and the installation cavity is inside to be provided with heating pipe b for solve because nozzle simple structure in the current 3D printer can not handle the granule in the ink that enters into the nozzle, lead to appearing blocking phenomenon's problem very easily at the printing in-process nozzle.

Description

Ink-jet type special ceramic 3D printing equipment

Technical Field

The invention belongs to the technical field of 3D printing, and particularly relates to ink-jet special ceramic 3D printing equipment.

Background

The 3D printing technology mainly comprises a 3D printer capable of realizing three-dimensional printing, wherein the 3D printer mainly comprises a mounting table, a printing table, a nozzle arranged on the mounting table and a driving assembly capable of driving the printing table to move in multiple directions; the inkjet 3D printing technology refers to a specific pattern or shape formed by spraying ink on a target body laid on a printing table through a nozzle and then solidifying the ink, wherein the ink used in the 3D printing technology is not common ink, but is a special fluid formed by proportioning a plurality of different special powder materials and liquids according to actual requirements.

And the ink that uses among the 3D printing technique is formed by multiunit different types of powder and liquid ratio, and because the granularity size of all kinds of powder is different for contain some granules in the ink that final ratio was come out, and this type of ink is at the in-process of spouting by the nozzle in succession, because the simple structure of nozzle, can not handle the granule in the ink that enters into the nozzle, leads to appearing the phenomenon of jam very easily at the printing in-process nozzle, thereby influences the normal use of printer.

Disclosure of Invention

Based on the problems mentioned in the background art, the invention provides an ink-jet type special ceramic 3D printing device which is used for solving the problem that a nozzle is easy to block in the printing process because the nozzle in the existing 3D printer is simple in structure and cannot treat particles in ink entering the nozzle.

The technical scheme adopted by the invention is as follows:

the ink-jet special ceramic 3D printing equipment comprises a printer main body and a spray head, wherein the printer main body mainly comprises a mounting table, a printing table and a driving assembly capable of driving the printing table to move in three transverse, longitudinal and vertical directions, the mounting table is positioned above the printing table, the spray head is arranged on the mounting table and consists of a spray cylinder a and a spray cylinder b, the spray cylinder b is arranged at the opening part of the bottom end of the spray cylinder a, an external connecting pipe is arranged at the top end of the spray cylinder a, a grinding disc a and a grinding disc b are arranged in the spray cylinder a, the grinding disc b is positioned at the bottom end of the grinding disc a, the grinding disc a is fixedly arranged, the grinding disc b is movably arranged, and two groups of flow channel holes are oppositely formed in the grinding disc a; a snap ring is sleeved on the periphery of the top end of the spraying cylinder a, an installation frame is fixedly arranged on the periphery of the snap ring, a motor a and a motor b are arranged on the installation frame, a rotating sleeve penetrates through the middle of the top end of the spraying cylinder a, a gear b is arranged at the top end of the rotating sleeve, a gear a meshed with the gear b is arranged on a main shaft of the motor a, and the bottom end of the rotating sleeve penetrates through the abrasive disc a to be connected with the abrasive disc b; a rotating shaft penetrates through the rotating sleeve, the top end of the rotating shaft is connected with a main shaft of the motor b, and a spiral conveying rod is arranged at the bottom end of the rotating shaft; grinding material dish a week side is provided with the installation pipe, installation pipe one end run through extremely outside the shower nozzle a, grinding material dish an inside has the installation cavity, the inside heating pipe b that is provided with of installation cavity, connector among the heating pipe b is located in the installation pipe.

On the basis of the technical scheme, the invention is also improved as follows:

furthermore, the bottom end of the abrasive disc a and the top end of the abrasive disc b are both conical, and the conical bottom surface of the abrasive disc a and the conical top surface of the abrasive disc b are respectively provided with grinding teeth with opposite rotation directions; and a stirring frame is arranged at the bottom end of the grinding disc b and is positioned above the spiral conveying rod.

Further, be provided with the spiral depression bar on the rotating sleeve, the spiral depression bar is located abrasive disc a top with spout between a top.

Further, the outer wall of the spraying cylinder a and the outer wall of the spraying cylinder b are provided with a heating sleeve together, and a heating pipe a is arranged in the heating sleeve; and a heat insulation layer is arranged on the outer wall of the heating sleeve.

Further, spout a section of thick bamboo b bottom and be provided with the joint cover, the joint is sheathe in and is provided with the annular condenser, it spouts the cover to set up the annular on the condenser, spout the lantern ring around in spout week side of spouting a section of thick bamboo b bottom.

Furthermore, a sealing block is arranged on the rotating sleeve, a sealing groove is formed in the top end of the spraying cylinder a, and the sealing block is located in the sealing groove; the rotating shaft is provided with a clamping block, a clamping groove is formed in a flange at the top end of the rotating sleeve, and the clamping block is located in the clamping groove.

Furthermore, two groups of clamping sleeves are oppositely arranged at the top end of the spraying cylinder a, a protective sleeve is clamped between the two groups of clamping sleeves, and the gear a and the gear b are located in the protective sleeve.

Furthermore, the outer wall of the spraying cylinder a is provided with a positioning block, the snap ring is provided with a positioning groove, and the positioning block is clamped in the positioning groove.

The invention has the beneficial effects that:

1. through set up the outer takeover at a top of spouting a section of thick bamboo, can spout a section of thick bamboo a with the ink introduction after the outer takeover that sets up is connected with outside ink tube, and through set up abrasive disc a and abrasive disc b combination in spouting a section of thick bamboo a, when ink flows towards spouting a section of thick bamboo b after in spouting a section of thick bamboo a through the outer takeover introduction, the ink can flow into the gap between abrasive disc a and the abrasive disc b from the runner hole in the abrasive disc a, and rotate through the motor a drive gear a that sets up and after gear b meshing transmission again, it realizes rotating to drive the cover that rotates, and then drive abrasive disc b and rotate in abrasive disc a bottom, thereby can realize grinding the granule that enters into in the ink in the abrasive gap between abrasive disc a and the abrasive disc b and refine, the risk that the spout that can effectual reduction shower nozzle was blockked up by the granule in the ink.

2. Through at the inside installation cavity that sets up of abrasive material dish a, heating medium can be filled in the installation cavity, and still through setting up heating pipe b in the installation cavity inside, the heating pipe of setting can heat the heating medium of packing in the installation cavity, make abrasive material dish a can realize rising temperature, and after abrasive material dish a heaies up, can heat the ink that has solidified and stays in the gap between abrasive material dish a and abrasive material dish b and make it melt the outflow, thereby can be convenient for clear up the ink that solidifies in the gap between abrasive material dish a and abrasive material dish b.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a perspective view of an inkjet special ceramic 3D printing apparatus according to the present invention;

FIG. 2 is an exploded view of an inkjet special ceramic 3D printing apparatus according to the present invention;

FIG. 3 is a cross-sectional view of an inkjet special ceramic 3D printing apparatus of the present invention;

FIG. 4 is a cross-sectional view of a mid-portion subassembly of an inkjet special ceramic 3D printing apparatus of the present invention;

FIG. 5 is a cross-sectional view of a mid-portion subassembly of an inkjet special ceramic 3D printing apparatus of the present invention;

FIG. 6 is a cross-sectional view of a mid-portion subassembly of an inkjet special ceramic 3D printing apparatus of the present invention;

FIG. 7 is an exploded view of some components of an inkjet special ceramic 3D printing apparatus according to the present invention;

fig. 8 is an enlarged view of the area a in fig. 6.

The main element symbols are as follows:

1. a spray cylinder a; 2. a spraying cylinder b; 3. a clamping sleeve; 4. a screw conveying rod; 5. a mounting frame; 51. a snap ring; 52. positioning a groove; 53. positioning blocks; 6. a motor a; 7. a motor b; 8. a thermal insulation layer; 9. an external connection pipe; 10. a protective sleeve; 11. a gear a; 12. a gear b; 13. a screw press rod; 14. heating a jacket; 15. heating a pipe a; 16. an abrasive disc a; 17. heating a pipe b; 18. an abrasive disc b; 19. rotating the sleeve; 20. a rotating shaft; 21. a stirring frame; 23. a condenser; 24. spraying a sleeve; 25. a flow passage hole; 26. a mounting cavity; 27. installing a pipe; 28. grinding the teeth; 29. a sealing block; 30. a sealing groove; 31. a clamping block; 32. a card slot; 33. and (4) a ferrule.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 8, an inkjet type special ceramic 3D printing apparatus includes a printer main body and a nozzle, the printer main body is mainly composed of a mounting table, a printing table and a driving component capable of driving the printing table to move in three directions, i.e., a transverse direction, a longitudinal direction and a vertical direction, the mounting table is located above the printing table, the nozzle is arranged on the mounting table, the nozzle can be located above the printing table by arranging the nozzle on the mounting table, and the printing table can be driven by the driving component in the printer main body, so that the printing table can move in the transverse direction, the longitudinal direction and the vertical direction, and further the position between the printing table and the nozzle can be adjusted, and the nozzle can print complete parts on the printing table;

the nozzle is composed of a nozzle cylinder a1 and a nozzle cylinder b2, a nozzle cylinder b2 is arranged at the bottom end opening part of the nozzle cylinder a1, and the nozzle is composed of a nozzle cylinder a1 and a nozzle cylinder b2 in a combined mode to form a detachable structure, so that when the interior of the nozzle needs to be maintained in the later period, the nozzle can be detached to clean printing raw material residues in the nozzle;

The top end of the spray cylinder a1 is provided with an external connecting pipe 9, and the external connecting pipe 9 can be connected with an external ink pipe through the arrangement of the external connecting pipe 9, so that ink can be conveniently introduced into the spray head; abrasive disc a16 and abrasive disc b18 are arranged in spray cylinder a1, abrasive disc b18 is located at the bottom end of abrasive disc a16, abrasive disc a16 is fixedly arranged, particles in the ink entering the spray head can be grinded and refined through the combined arrangement of abrasive disc a16 and abrasive disc b18, abrasive disc a16 is fixedly arranged in spray cylinder a1, and rotation of abrasive disc a16 can be avoided when the particles in the ink are grinded; abrasive disc b18 is movably arranged in spray cylinder a1, that is, abrasive disc b18 can rotate in spray cylinder a1, so that relative movement between abrasive disc a16 and abrasive disc b18 can be realized; two groups of flow channel holes 25 are oppositely arranged on the abrasive disc a16, and through the arrangement of the flow channel holes 25, ink entering the jet cylinder a1 can smoothly flow into a gap between the abrasive disc a16 and the abrasive disc b 18;

a snap ring 51 is sleeved on the periphery of the top end of the spray cylinder a1, an installation frame 5 is fixedly arranged on the periphery of the snap ring 51, the installed installation frame 5 can be installed on an installation table in the printer main body, and the printer can be further installed on the installation table of the printer main body; the mounting rack 5 is provided with a motor a6 and a motor b7, a rotating sleeve 19 is arranged in the middle of the top end of the spraying cylinder a1 in a penetrating manner, a gear b12 is arranged at the top end of the rotating sleeve 19, a gear a11 meshed with the gear b12 is arranged on the main shaft of the motor a6, the gear a11 can be driven to rotate through the arranged motor a6, and the gear a11 and the gear b12 arranged at the top end of the rotating sleeve 19 are in meshing transmission to drive the rotating sleeve 19 to rotate; and the bottom of rotating the cover 19 runs through abrasive disc a16 and is connected with abrasive disc b18 to make rotating cover 19 and abrasive disc b18 and assemble together, impel and can drive abrasive disc b18 and rotate at abrasive disc a16 bottom when rotating cover 19, and when abrasive disc b18 rotates at abrasive disc a16 bottom, can grind the granule in the ink that flows into the gap between abrasive disc b18 and abrasive disc a16, make the granule in the ink further realize refining, avoid the ink when the spout blowout from shower nozzle b2 bottom, the granule in the ink is blockked up the spout;

A rotating shaft 20 penetrates through the rotating sleeve 19, the top end of the rotating shaft 20 is connected with a main shaft of a motor b7, so that the rotating shaft 20 is assembled with a motor b7, and the rotating shaft 20 can be driven to rotate through the arranged motor b 7; the spiral conveying rod 4 is arranged at the bottom end of the rotating shaft 20, and the spiral conveying rod 4 is arranged at the bottom end of the rotating shaft 20 to be assembled together, so that the rotating shaft 20 can drive the spiral conveying rod 4 to rotate in the spraying cylinder b2 when rotating, and therefore the ink flowing into the spraying cylinder b2 after being grinded and refined by the grinding material disc a16 and the grinding material disc b18 can be extruded and conveyed, and the ink is sprayed out from a nozzle at the bottom end of the spraying cylinder b 2;

a mounting pipe 27 is arranged on the peripheral side of the abrasive disc a16, one end of the mounting pipe 27 penetrates out of the spray cylinder a1, a mounting cavity 26 is arranged inside the abrasive disc a16, the mounting cavity 26 is arranged inside the abrasive disc a16, and a heating medium can be filled in the arranged mounting cavity 26; and a heating pipe b17 is further arranged inside the mounting cavity 26, a connector in the heating pipe b17 is located in the mounting pipe 27, the arranged heating pipe b17 can heat and raise the temperature of a heating medium in the mounting cavity 26 after being started, and when the heating medium in the mounting cavity 26 is heated, the whole temperature of the abrasive disc a16 can be raised, and after the temperature of the abrasive disc a16 is raised, solidified ink which is not cleaned after last printing and remains in a gap between the abrasive disc a16 and the abrasive disc b18 can be heated, so that the solidified ink is heated and melted and flows out from the gap between the abrasive disc a16 and the abrasive disc b18, and therefore the solidified ink which remains in the gap between the abrasive disc a16 and the abrasive disc b18 after last printing can be cleaned conveniently.

Referring to fig. 3 and 7, the bottom end of abrasive disc a16 and the top end of abrasive disc b18 are both conical, and the bottom end of abrasive disc a16 and the top end of abrasive disc b18 are arranged to be conical, so that the bottom surface of abrasive disc a16 and the top surface of abrasive disc b18 can be better fitted together, and the conical surface can be arranged to more conveniently discharge ink in the gap between abrasive disc a16 and abrasive disc b 18; the grinding teeth 28 with opposite rotation directions are respectively arranged on the conical bottom surface of the grinding disc a16 and the conical top surface of the grinding disc b18, the friction between the bottom surface of the grinding disc a16 and the top surface of the grinding disc b18 can be increased through the arranged grinding teeth 28, and the grinding effect on particles in ink flowing between the bottom surface of the grinding disc a16 and the top surface of the grinding disc b18 can be effectively improved; abrasive disc b18 bottom is provided with agitator frame 21, agitator frame 21 is located the top of auger delivery pole 4, through setting up agitator frame 21 in abrasive disc b18 bottom, make it and abrasive disc b18 assemble together, make can drive agitator frame 21 when abrasive disc b18 rotates and rotate, and then can stir the ink that flows into in spray tube b2 after abrasive disc a16 and abrasive disc b18 process abrasive treatment, make it further mix, can effectively improve the mixed effect of ink.

Referring to fig. 3, the rotating sleeve 19 is provided with a spiral pressure lever 13, and the spiral pressure lever 13 is located between the top end of the abrasive disc a16 and the inner top end of the spray cylinder a 1; through setting up the hob 13 on rotating the cover 19 for when rotating cover 19 and rotating and drive abrasive disc b18 and rotate, can drive hob 13 at urceolus a1 internal rotation simultaneously, and then can play the effect that the suppression was carried to the ink that is in abrasive disc a16 top, thereby make the ink above abrasive disc a16 can be more smooth and easy get into in the gap between abrasive disc a16 and the abrasive disc b18 through runner hole 25 and grind.

Referring to fig. 3, the outer wall of the spray cylinder a1 and the outer wall of the spray cylinder b2 are both provided with a heating jacket 14, and a heating pipe a15 is arranged in the heating jacket 14; through the arranged heating sleeve 14, the heating sleeve 14 can be filled with a heating medium, and the heating medium can be heated through the arranged heating pipe a15, so that the heating medium is heated to keep the temperature of the ink in the ejection cylinder a1 and the ejection cylinder b2, and the ink is prevented from being solidified in the ejection head; the 14 outer walls of heating jacket are provided with insulating layer 8, and insulating layer 8 of setting can realize thermal-insulated effect, is scalded when avoiding the hand mistake to hold on heating jacket 14.

Referring to fig. 3, the clamping sleeve 3 is arranged at the bottom end of the spraying cylinder b2, the annular condenser 23 is arranged on the clamping sleeve 3, the annular spraying sleeve 24 is arranged on the condenser 23, the spraying sleeve 24 surrounds the periphery of the nozzle at the bottom end of the spraying cylinder b2, cold air can be produced through the arranged condenser 23, and after the cold air generated by the condenser 23 is sprayed out of the spraying sleeve 24, the cold air can condense the ink sprayed out of the nozzle at the bottom end of the spraying cylinder b2, so that the curing efficiency of the sprayed ink can be effectively improved.

Referring to fig. 2, the rotating sleeve 19 is provided with a sealing block 29, the top end of the spray cylinder a1 is provided with a sealing groove 30, and the sealing block 29 is located in the sealing groove 30; grease can be filled in the arranged sealing groove 30, the sealing block 29 is buckled in the sealing groove 30 filled with the grease, a gap at the joint of the rotating sleeve 19 and the spray cylinder a1 can be sealed, and air is prevented from entering the spray cylinder a 1; the rotating shaft 20 is provided with the clamping block 31, the flange at the top end of the rotating sleeve 19 is provided with the clamping groove 32, the clamping block 31 is located in the clamping groove 32, grease can be filled in the arranged clamping groove 32, the clamping block 31 is buckled in the clamping groove 32 filled with the grease, a gap at the joint of the rotating sleeve 19 and the rotating shaft 20 can be sealed, and air is prevented from entering the spraying cylinder a 1.

Referring to fig. 1 and 2, two sets of clamping sleeves 33 are oppositely arranged at the top end of the spray cylinder a1, a protective cover 10 is clamped between the two sets of clamping sleeves 33, the gear a11 and the gear b12 are located in the protective cover 10, and the gear a11 and the gear b12 are covered by the arranged protective cover 10, so that the meshing part of the gear a11 and the gear b12 can be prevented from being exposed outside, and the protective function can be achieved.

Referring to fig. 2, the outer wall of the spray cylinder a1 is provided with a positioning block 53, the snap ring 51 is provided with a positioning groove 52, the positioning block 53 is clamped in the positioning groove 52, and the spray cylinder a1 can be limited by the combination of the positioning block 53 and the positioning groove 52, so that the spray cylinder a1 is prevented from rotating after being clamped on the snap ring 51.

When in use, the mounting rack 5 is arranged on the mounting table of the printer main body, so that the invention is arranged on the printer main body, the external connecting pipe 9 is connected with the external ink pipe, namely, the ink can be introduced into the spraying cylinder a1, when the ink is introduced into the spraying cylinder a1, the starting motor a6 drives the gear a11 to rotate and then is in meshing transmission with the gear b12, the rotating sleeve 19 can be driven to rotate, and the abrasive disc b18 can be driven to rotate at the bottom end of the abrasive disc a16, while the rotating sleeve 19 rotates, the spiral pressure rod 13 can be driven to rotate, and the spiral pressure rod 13 can press the ink above the abrasive disc a16 when rotating, thereby delivering ink above abrasive disc a16 through flow passage hole 25 into the gap between abrasive disc a16 and abrasive disc b18, while the abrasive disc b18 rotates to grind and refine the particles in the ink flowing into the gap between the abrasive disc a16 and the abrasive disc b 18;

And the ink after thinning through grinding flows out to abrasive disc b18 below again from the gap between abrasive disc a16 and the abrasive disc b18, and can drive the stirring frame 21 that sets up in abrasive disc b18 bottom when abrasive disc b18 rotates again and rotate, and then can stir the ink that falls into the spiral delivery rod 4 top after thinning through grinding, make the ink after thinning through grinding intensive mixing once more, improve the mixing effect of ink; when the motor a6 is started, the motor b7 is also started, the motor b7 drives the rotating shaft 20 to rotate, when the rotating shaft 20 rotates, the spiral conveying rod 4 can be driven to rotate in the spraying cylinder b2, ink in the spraying cylinder b2 can be sprayed out from the nozzle at the bottom end of the spraying cylinder b2, and the sprayed ink is ground and refined before entering the spraying cylinder b2, so that the phenomenon that the nozzle is blocked by particles in the ink when the ink is sprayed out from the nozzle at the bottom end of the spraying cylinder b2 can be effectively avoided; after the ink is sprayed from the bottom nozzle of the spray cylinder b2, the cold air generated by the started condenser 23 is sprayed from the spray sleeve 24, so that the ink sprayed from the bottom nozzle of the spray cylinder b2 can be condensed, and the curing efficiency of the sprayed ink can be effectively improved.

The present invention has been described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides an ink jet type special ceramics 3D printing apparatus, includes printer main part and shower nozzle, and the printer main part mainly comprises mount table, printing table and the drive assembly that can drive the printing table and realize horizontal vertical three direction and remove, and the mount table is located the printing table top, and the shower nozzle sets up on the mount table, its characterized in that: the sprayer comprises a spray cylinder a (1) and a spray cylinder b (2), the spray cylinder b (2) is arranged at the opening part of the bottom end of the spray cylinder a (1), an external connection pipe (9) is arranged at the top end of the spray cylinder a (1), a grinding material disc a (16) and a grinding material disc b (18) are arranged in the spray cylinder a (1), the grinding material disc b (18) is located at the bottom end of the grinding material disc a (16), the grinding material disc a (16) is fixedly arranged, the grinding material disc b (18) is movably arranged, and two groups of flow channel holes (25) are oppositely arranged on the grinding material disc a (16); a clamping ring (51) is sleeved on the side of the top end periphery of the spray cylinder a (1), an installation frame (5) is fixedly arranged on the side of the clamping ring (51), a motor a (6) and a motor b (7) are arranged on the installation frame (5), a rotating sleeve (19) penetrates through the middle of the top end of the spray cylinder a (1), a gear b (12) is arranged on the top end of the rotating sleeve (19), a gear a (11) meshed with the gear b (12) is arranged on a main shaft of the motor a (6), and the bottom end of the rotating sleeve (19) penetrates through the abrasive disc a (16) to be connected with the abrasive disc b (18); a rotating shaft (20) penetrates through the rotating sleeve (19), the top end of the rotating shaft (20) is connected with a main shaft of the motor b (7), and a spiral conveying rod (4) is arranged at the bottom end of the rotating shaft (20); abrasive material dish a (16) week side is provided with installation pipe (27), installation pipe (27) one end runs through extremely outside spray tube a (1), abrasive material dish a (16) inside has installation cavity (26), installation cavity (26) inside is provided with heating pipe b (17), the connector in heating pipe b (17) is located in installation pipe (27).

2. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: the bottom end of the abrasive disc a (16) and the top end of the abrasive disc b (18) are both conical, and grinding teeth (28) with opposite rotation directions are respectively arranged on the conical bottom surface of the abrasive disc a (16) and the conical top surface of the abrasive disc b (18); the bottom end of the grinding disc b (18) is provided with a stirring frame (21), and the stirring frame (21) is positioned above the spiral conveying rod (4).

3. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: be provided with spiral depression bar (13) on rotating sleeve (19), spiral depression bar (13) are located abrasive disc a (16) top with spout between the section of thick bamboo a (1) interior top.

4. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: the outer wall of the spraying cylinder a (1) and the outer wall of the spraying cylinder b (2) are provided with a heating sleeve (14) together, and a heating pipe a (15) is arranged in the heating sleeve (14); and a heat insulation layer (8) is arranged on the outer wall of the heating jacket (14).

5. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: spout a section of thick bamboo b (2) bottom and be provided with joint sleeve (3), be provided with annular form condenser (23) on joint sleeve (3), set up the annular form on condenser (23) and spout cover (24), spout cover (24) encircle in spout week side of spouting a section of thick bamboo b (2) bottom.

6. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: a sealing block (29) is arranged on the rotating sleeve (19), a sealing groove (30) is formed in the top end of the spraying cylinder a (1), and the sealing block (29) is located in the sealing groove (30); a clamping block (31) is arranged on the rotating shaft (20), a clamping groove (32) is formed in a flange at the top end of the rotating sleeve (19), and the clamping block (31) is located in the clamping groove (32).

7. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: two groups of clamping sleeves (33) are oppositely arranged at the top end of the spraying cylinder a (1), a protective sleeve (10) is clamped between the two groups of clamping sleeves (33), and the gear a (11) and the gear b (12) are located in the protective sleeve (10).

8. The inkjet special ceramic 3D printing apparatus according to claim 1, wherein: the outer wall of the spraying cylinder a (1) is provided with a positioning block (53), the clamping ring (51) is provided with a positioning groove (52), and the positioning block (53) is clamped in the positioning groove (52).