Discharging device for precise ceramic 3D printer

Abstract

The invention relates to the technical field of discharging devices, and discloses a discharging device for a precise ceramic 3D printer, which comprises a tank body, the lower side of the tank body is fixedly connected with a conical hopper, the upper side of the tank body is fixedly provided with a tank cover, the upper side of the tank cover is fixedly provided with a rotary drive, and an output shaft of the rotary drive is movably provided with the tank cover. The rotating rod can drive the movable strip to rotate and move, so that the movable strip can be driven to rotate and move, the movable plate can be driven to rotate and move, the movable plate can be used for pushing objects to move, and when the movable plate moves to the lower end of the spiral half pipe, the materials can be pushed into the spiral half pipe. And then the moving plate moves along the arc-shaped half pipe to push the materials to move, the materials fall onto the guide hopper when moving to the through groove, the materials fall onto the grinding disc a along the guide hopper, and then grinding treatment can be continued through the feeding groove, so that the materials can be fully ground back and forth, and the situation that subsequent printing is affected due to unqualified grinding is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of discharging devices, and in particular to a discharging device for a precision ceramic 3D printer. Background Art

[0002] A 3D printer is an additive manufacturing device that can create the required three-dimensional model by melting metal or plastic and controlling the printing position and speed through a microcomputer. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and is gradually used for the direct manufacturing of some products. There are already parts printed using this technology, and the objects in the ceramic printer need to be ground and then stirred. After the material is fully ground, it is stirred and used inside the ceramic printer, which will cause serious surface roughness on the printed object and cause local cracks on the surface of the object. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a material discharge device for a precision ceramic 3D printer, which has the advantages of being able to fully grind the material back and forth to avoid unqualified grinding affecting subsequent printing, and solves the problem that the objects in the ceramic printer need to be ground and then stirred. If the material is stirred after being fully ground and then put into the ceramic printer for use, it will cause serious roughness on the surface of the printed object, resulting in local cracks on the surface of the object.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of fully grinding the material back and forth to avoid unqualified grinding affecting subsequent printing, the present invention provides the following technical solutions: a material discharge device for a precision ceramic 3D printer, comprising a tank body, a conical bucket fixedly connected to the lower side of the tank body, a tank cover fixedly installed on the upper side of the tank body, a rotary drive fixedly installed on the upper side of the tank cover, the output shaft of the rotary drive movably moves to the tank cover, a rotating rod fixedly installed at the lower end of the output shaft of the rotary drive, a grinding disc a fixedly installed on the rotating rod, a grinding disc b is arranged below the grinding disc a, a plurality of feeding troughs are provided on the upper side of the grinding disc a, a movable bar fixedly installed on the rotating rod, a moving bar fixedly installed on the moving bar, a movable block is arranged on the moving bar, a square groove is arranged on the movable block, the moving bar is movably connected to the square groove, a movable plate is fixedly installed on the movable block, the lower side of the movable plate is arc-shaped, a spiral half-tube is fixedly installed on the lower inner wall of the tank body, a through groove is arranged on the spiral half-tube, a guide bucket is fixedly installed on the spiral half-tube, the guide bucket is arranged below the through groove, and an annular filter plate is arranged on the lower wall of the tank body.

[0007] Preferably, a short tube is fixedly installed on the inner wall of the tank body, the inner wall of the short tube is fitted with the spiral half tube, an arc-shaped triangular plate is fixedly installed on the lower side of the spiral half tube, and the lower side of the arc-shaped triangular plate is fixedly connected to the lower inner wall of the tank body.

[0008] Preferably, an annular groove is provided on the lower inner wall of the tank body, a plurality of arc-shaped material discharge grooves are provided on the lower inner wall of the annular groove, and the annular filter plate is movably connected to the annular groove.

[0009] Preferably, the four side walls of the square groove are provided with grooves, a plurality of cross bars are fixedly installed in each groove, a rotating column is movably sleeved on each cross bar, and each rotating column is fitted with the four side walls of the moving bar.

[0010] Preferably, a connecting pipe is fixedly installed on the upper side of the grinding disc a, a rotating bucket is fixedly installed on the upper side of the connecting pipe, the rotating bucket is arranged below the guide bucket, and two scraping bars are fixedly installed on the rotating rod, both scraping bars are in contact with the lower inner wall of the tank body, and one side of the two scraping bars in the counterclockwise direction is a slope.

[0011] Preferably, a plurality of arc-shaped material discharge chutes are provided on the tank cover, a material feeding hopper is fixedly installed on the upper side of the tank cover, a shielding tube is fixedly installed on the tank cover, and the shielding tube is sleeved on the rotary drive.

[0012] Preferably, a support bar is fixedly installed on the inner wall of the short tube, a round box is movably sleeved on the rotating rod, the round box is fixedly connected to the support bar, the support bar is arranged under the spiral half-tube, a small strip is fixedly installed on the inner wall of the round box, a small ring is fixedly installed on the small strip, a connecting rod is rotatably connected in the small ring, a gear a is fixedly installed on the connecting rod, a rotating plate is fixedly sleeved on the rotating rod, an annular rack is fixedly installed on the upper side of the rotating plate, and gear a is meshingly connected with the annular rack.

[0013] Preferably, a gear b is fixedly mounted on the rotating rod, and the grinding disc b is rotatably sleeved on the rotating rod. A round tube is fixedly mounted on the lower side of the grinding disc b, and the round tube is movably sleeved on the rotating rod. A gear c is fixedly mounted on the lower end of the round tube, and the gear c is movably sleeved on the rotating rod, and the gear c is meshingly connected with the gear b.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a material discharging device for a precision ceramic 3D printer, which has the following beneficial effects:

[0016] 1. The material discharge device used in the precision ceramic 3D printer puts the material to be ground between the grinding disc a and the grinding disc b through the feeding trough, and then the rotating rod can be driven to rotate through the rotary drive, so as to drive the grinding disc a to rotate and grind the material. The ground material will fall to the bottom of the tank body, and then it will be filtered by the annular filter plate. The unqualified grinding items will stay at the bottom of the tank body. At the same time, the rotating rod can drive the movable bar to rotate and move, so as to drive the movable bar to rotate and move, so as to drive the movable plate to rotate and move, so as to use the movable plate to push the items to move. When the movable plate moves to the lower end of the spiral half-tube, the material will be pushed into the spiral half-tube, and then the movable plate will move along the arc half-tube to push the material to move. When the material moves to the through groove, it will fall into the guide bucket, so that the material will fall onto the grinding disc a along the guide bucket, and then it can continue to be ground through the feeding trough, so that the material can be fully ground back and forth to avoid unqualified grinding affecting subsequent printing.

[0017] 2. The discharge device used in the precision ceramic 3D printer can continue to block the material through the short tube to prevent it from approaching the edge of the tank and being unable to be scraped. The arc-shaped triangular plate can prevent the material from entering under the spiral half-tube, thereby preventing the material from entering under the spiral half-tube and being unable to be scraped by the moving plate, resulting in the inability to be ground again.

[0018] 3. The discharge device used in the precision ceramic 3D printer can remove the annular filter plate by moving the annular filter plate upward, so that the user can easily replace and clean the annular filter plate. Each cross bar cooperates with each rotating column to reduce the friction between the movable block and the movable bar, thereby avoiding excessive friction that causes the movable plate to be unable to move upward while rotating.

[0019] 4. The material discharge device used in the precision ceramic 3D printer can smoothly catch the material falling from the guide bucket through the connecting pipe and the rotating bucket, and then the material will fall into the feed trough along the guide bucket. The two scraping bars can scrape the material at the bottom of the tank for filtering. At the same time, the unqualified material will be pushed outward by the inclined surface of the scraping bar, so that the moving plate can smoothly push the material to move.

[0020] 5. The discharge device used in the precision ceramic 3D printer can facilitate users to add materials to the tank through the feed hopper, and the materials can fall into the rotating bucket through the arc-shaped discharge chute. The shielding tube can prevent the materials from contacting the rotating drive when adding materials, thereby preventing the materials from entering the rotating drive and affecting the use.

[0021] 6. The discharge device used in the precision ceramic 3D printer can drive the rotating plate to rotate counterclockwise by rotating the rotating rod counterclockwise, so that the gear a can be driven to rotate counterclockwise through the annular rack, so that the gear b can be driven to rotate counterclockwise, so that the round tube can be driven to rotate clockwise through the gear c, so that the grinding disc b can be driven to rotate clockwise, so that the grinding disc a and the grinding disc b can be rotated in opposite directions, thereby improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A three-dimensional structural diagram of the internal structure of the middle tank body;

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the internal three-dimensional structure of the middle tank;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the three-dimensional structure of the middle grinding disc a;

[0026] Figure 5 For the present invention Figure 1 A schematic diagram of the cross-sectional three-dimensional structure of the middle tank body;

[0027] Figure 6 For the present invention Figure 2 Schematic diagram of the three-dimensional structure of the movable block;

[0028] Figure 7 For the present invention Figure 2 Schematic diagram of the three-dimensional structure of the middle helical half tube;

[0029] Figure 8 For the present invention Figure 3 Schematic diagram of the three-dimensional structure of the rotating rod.

[0030] In the figure: 1, tank body; 2, conical bucket; 3, tank cover; 4, arc-shaped feed chute; 5, shielding tube; 6, rotary drive; 7, feed hopper; 8, movable bar; 9, moving bar; 10, movable block; 11, moving plate; 12, spiral half pipe; 13, guide bucket; 14, arc-shaped triangular plate; 15, through slot; 16, rotating rod; 17, rotating bucket; 18, feed chute; 19, grinding disc a; 20, gear c; 21, Round tube; 22, connecting rod; 23, gear b; 24, small strip; 25, support strip; 26, small ring; 27, gear a; 28, ring rack; 29, round box; 30, scraping strip; 31, grinding disc b; 32, groove; 33, cross bar; 34, rotating column; 35, square groove; 36, arc-shaped feed chute; 37, annular groove; 38, annular filter plate; 39, short tube; 40, connecting tube; 41, rotating plate. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8The present invention provides a technical solution: a material discharge device for a precision ceramic 3D printer, comprising a tank body 1, a conical bucket 2 is fixedly connected to the lower side of the tank body 1, a tank cover 3 is fixedly installed on the upper side of the tank body 1, a rotary drive 6 is fixedly installed on the upper side of the tank cover 3, the output shaft of the rotary drive 6 is movably connected to the tank cover 3, a rotating rod 16 is fixedly installed on the lower end of the output shaft of the rotary drive 6, a grinding disc a19 is fixedly installed on the rotating rod 16, a grinding disc b31 is arranged below the grinding disc a19, a plurality of feeding troughs 18 are provided on the upper side of the grinding disc a19, a movable bar 8 is fixedly installed on the rotating rod 16, a moving bar 9 is fixedly installed on the moving bar 8, a movable block 10 is arranged on the moving bar 9, a square groove 35 is arranged on the movable block 10, the moving bar 9 is movably connected to the square groove 35, and the movable bar 9 is movably connected to the square groove 35. A movable plate 11 is fixedly installed on the movable block 10, and the lower side of the movable plate 11 is arc-shaped. A spiral half-tube 12 is fixedly installed on the lower inner wall of the tank body 1, and a through groove 15 is opened on the spiral half-tube 12. A guide bucket 13 is fixedly installed on the spiral half-tube 12, and the guide bucket 13 is arranged below the through groove 15. An annular filter plate 38 is arranged on the lower wall of the tank body 1. The material to be ground is put between the grinding disc a19 and the grinding disc b31 through the feed trough 18, and then the rotating rod 16 can be driven to rotate by the rotary drive 6, so that the grinding disc a19 can be driven to rotate and grind the material. The ground material will fall to the bottom of the tank body 1, and then it will be filtered by the annular filter plate 38. The unqualified items will stay at the bottom of the tank body 1. At the same time, the rotating rod 16 can drive the movable block 10 to rotate. The movable bar 8 rotates and moves, thereby driving the movable bar 9 to rotate and move, so that the movable plate 11 can be driven to rotate and move, so that the movable plate 11 can be used to push the object to move, and when the movable plate 11 moves to the lower end of the spiral half-tube 12, the material will be pushed into the spiral half-tube 12, and then the movable plate 11 will move along the arc half-tube 12 to push the material to move, and when the material moves to the through groove 15, it will fall into the guide bucket 13, so that the material will fall along the guide bucket 13 onto the grinding disc a19, and then it can continue to be ground through the feed trough 18, so that the material can be fully ground back and forth to avoid unqualified grinding affecting subsequent printing. A short tube 39 is fixedly installed on the inner wall of the tank body 1, and the inner wall of the short tube 39 is in contact with the spiral half-tube 12. The spiral half-tube An arc-shaped triangular plate 14 is fixedly installed on the lower side of 12, and the lower side of the arc-shaped triangular plate 14 is fixedly connected to the lower inner wall of the tank body 1. The short tube 39 can continue to block the material from approaching the edge of the tank body 1 and preventing it from being scraped. The arc-shaped triangular plate 14 can prevent the material from entering the lower part of the spiral half-tube 12, thereby preventing the material from entering the lower part of the spiral half-tube 12 and being unable to be scraped by the movable plate 11, resulting in the material being unable to be ground again. An annular groove 37 is provided on the lower inner wall of the tank body 1, and a plurality of arc-shaped material discharge grooves 36 are provided on the lower inner wall of the annular groove 37. The annular filter plate 38 is movably connected to the annular groove 37. The four side walls of the square groove 35 are all provided with grooves 32, and a plurality of cross bars 33 are fixedly installed in each groove 32. A rotating column 34 is movably sleeved on each cross bar 33.Each rotating column 34 is in contact with the four side walls of the moving bar 9. The annular filter plate 38 can be taken out by moving the annular filter plate 38 upward, so that the user can easily replace and clean the annular filter plate 38. Each cross bar 33 cooperates with each rotating column 34 to reduce the friction between the movable block 10 and the moving bar 9, so as to avoid excessive friction causing the moving plate 11 to be unable to move upward while rotating. A connecting pipe 40 is fixedly installed on the upper side of the grinding disc a19, and a rotating bucket 17 is fixedly installed on the upper side of the connecting pipe 40. The rotating bucket 17 is arranged below the guide bucket 13. Two scraping bars 30 are fixedly installed on the rotating rod 16. The two scraping bars 30 are in contact with the lower inner wall of the tank body 1. The two scraping bars 30 rotate counterclockwise. The sides are all inclined surfaces, and the materials falling from the guide bucket 13 can be smoothly caught through the connecting pipe 40 and the rotating bucket 17, and then the materials will fall into the feed chute 18 along the guide bucket 13, and the materials at the bottom of the tank body 1 can be scraped by the two scraping bars 30 for filtering, and at the same time, the unqualified materials will be pushed outward by the inclined surfaces of the scraping bars 30, so that the moving plate 11 can smoothly push the materials to move, and a plurality of arc-shaped feed chutes 4 are provided on the tank cover 3, and a feed hopper 7 is fixedly installed on the upper side of the tank cover 3, and a shielding tube 5 is fixedly installed on the tank cover 3, and the shielding tube 5 is sleeved on the rotating drive 6. The user can add materials to the tank body 1 through the feed hopper 7, and at the same time, the materials can fall into the rotating bucket 17 through the arc-shaped feed chute 4, and the shielding tube 5 can avoid When adding materials, the materials contact the rotating drive 6, so as to avoid the materials entering the rotating drive 6 and affecting the use. A support bar 25 is fixedly installed on the inner wall of the short tube 39, and a round box 29 is movably sleeved on the rotating rod 16. The round box 29 is fixedly connected to the support bar 25, and the support bar 25 is arranged below the spiral half tube 12. A small strip 24 is fixedly installed on the inner wall of the round box 29, and a small ring 26 is fixedly installed on the small strip 24. A connecting rod 22 is rotatably connected in the small ring 26, and a gear a27 is fixedly installed on the connecting rod 22. A rotating plate 41 is fixedly sleeved on the rotating rod 16, and an annular rack 28 is fixedly installed on the upper side of the rotating plate 41. The gear a27 is meshed with the annular rack 28. A gear b23 is fixedly installed on the rotating rod 16, and the grinding disc b31 rotates. The rotating sleeve is connected to the rotating rod 16, and a round tube 21 is fixedly installed on the lower side of the grinding disc b31. The round tube 21 is movably sleeved on the rotating rod 16. A gear c20 is fixedly installed on the lower end of the round tube 21. The gear c20 is movably sleeved on the rotating rod 16. The gear c20 is meshed with the gear b23. The rotating plate 41 can be driven to rotate counterclockwise by rotating the rotating rod 16 counterclockwise, so that the gear a27 can be driven to rotate counterclockwise through the annular rack 28, so that the gear b23 can be driven to rotate counterclockwise, so that the round tube 21 can be driven to rotate clockwise through the gear c20, so that the grinding disc b31 can be driven to rotate clockwise, so that the grinding disc a19 and the grinding disc b31 can be rotated in opposite directions, so that the grinding efficiency can be improved.

[0034] When in use, the first step is to put the material to be ground between the grinding disc a19 and the grinding disc b31 through the feed trough 18, and then the rotating rod 16 can be driven to rotate through the rotary drive 6, so as to drive the grinding disc a19 to rotate and grind the material. The ground material will fall to the bottom of the tank body 1, and then it will be filtered by the annular filter plate 38. The filtered material will fall into the printer through the conical bucket 2, and the unqualified grinding objects will stay at the bottom of the tank body 1. At the same time, the rotating rod 16 can drive the movable bar 8 to rotate and move, thereby driving the movable bar 9 to rotate and move. The movable plate 11 moves, so that the movable plate 11 can be driven to rotate and move, so that the movable plate 11 can be used to push the object to move, when the movable plate 11 moves to the lower end of the spiral half-tube 12, the material will be pushed into the spiral half-tube 12, and then the movable plate 11 will move along the arc half-tube 12 to push the material to move, when the material moves to the through groove 15, it will fall into the guide bucket 13, so that the material will fall onto the grinding disc a19 along the guide bucket 13, and then it can continue to be ground through the feeding trough 18, so that the material can be fully ground back and forth to avoid unqualified grinding affecting subsequent printing.

[0035] Step 2: The short tube 39 can continue to block the material from approaching the edge of the tank body 1 and being unable to be scraped. The arc-shaped triangular plate 14 can prevent the material from entering under the spiral half-tube 12, thereby preventing the material from entering under the spiral half-tube 12 and being unable to be scraped by the moving plate 11, resulting in the material being unable to be ground again.

[0036] Step 3: The annular filter plate 38 can be removed by moving it upward, so that the user can replace and clean the annular filter plate 38 conveniently. Each cross bar 33 cooperates with each rotating column 34 to reduce the friction between the movable block 10 and the movable bar 9, thereby preventing the movable plate 11 from being unable to move upward while rotating due to excessive friction.

[0037] Step 4: The material falling from the guide bucket 13 can be smoothly caught through the connecting pipe 40 and the rotating bucket 17, and then the material will fall into the feed trough 18 along the guide bucket 13. The two scraping bars 30 can scrape the material at the bottom of the tank body 1 for filtering. At the same time, unqualified materials will be pushed outward by the inclined surface of the scraping bar 30, so that the moving plate 11 can smoothly push the material to move.

[0038] Step 5: The user can add materials to the tank body 1 conveniently through the feeding hopper 7, and the materials can fall into the rotating bucket 17 through the arc-shaped discharge chute 4. The shielding tube 5 can prevent the materials from contacting the rotating drive 6 when adding materials, thereby preventing the rotating drive 6 from entering the materials and affecting the use.

[0039] Step 6: By rotating the rotating rod 16 counterclockwise, the rotating plate 41 can be driven to rotate counterclockwise, so that the gear a27 can be driven counterclockwise through the annular rack 28, so that the gear b23 can be driven counterclockwise, so that the round tube 21 can be driven clockwise through the gear c20, so that the grinding disc b31 can be driven to rotate clockwise, so that the grinding disc a19 and the grinding disc b31 can be rotated in opposite directions, so that the grinding efficiency can be improved.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material discharge device for a precision ceramic 3D printer, comprising a tank body (1), a conical bucket (2) fixedly connected to the lower side of the tank body (1), and a tank cover (3) fixedly installed on the upper side of the tank body (1), characterized in that: A rotary drive (6) is fixedly mounted on the upper side of the tank cover (3), the output shaft of the rotary drive (6) is movable with respect to the tank cover (3), a rotary rod (16) is fixedly mounted on the lower end of the output shaft of the rotary drive (6), a grinding disc a (19) is fixedly mounted on the rotary rod (16), a grinding disc b (31) is arranged below the grinding disc a (19), a plurality of feeding grooves (18) are arranged on the upper side of the grinding disc a (19), a movable bar (8) is fixedly mounted on the rotary rod (16), a moving bar (9) is fixedly mounted on the moving bar (8), and a moving bar (9) is arranged on the moving bar (9) A movable block (10) is provided, a square groove (35) is formed on the movable block (10), a movable bar (9) is movably connected to the square groove (35), a movable plate (11) is fixedly mounted on the movable block (10), the lower side of the movable plate (11) is arc-shaped, a spiral half-tube (12) is fixedly mounted on the lower inner wall of the tank body (1), a through groove (15) is formed on the spiral half-tube (12), a guide bucket (13) is fixedly mounted on the spiral half-tube (12), the guide bucket (13) is arranged below the through groove (15), and an annular filter plate (38) is arranged on the lower wall of the tank body (1).

2. The material discharging device for a precision ceramic 3D printer according to claim 1, characterized in that: A short tube (39) is fixedly mounted on the inner wall of the tank body (1), the inner wall of the short tube (39) is in contact with the spiral half tube (12), an arc-shaped triangular plate (14) is fixedly mounted on the lower side of the spiral half tube (12), and the lower side of the arc-shaped triangular plate (14) is fixedly connected to the lower inner wall of the tank body (1).

3. The material discharging device for a precision ceramic 3D printer according to claim 1, characterized in that: The lower inner wall of the tank body (1) is provided with an annular groove (37), the lower inner wall of the annular groove (37) is provided with a plurality of arc-shaped material discharge grooves (36), and an annular filter plate (38) is movably connected to the annular groove (37).

4. The material discharging device for a precision ceramic 3D printer according to claim 1, characterized in that: The four side walls of the square groove (35) are each provided with a groove (32), a plurality of cross bars (33) are fixedly installed in each groove (32), a rotating column (34) is movably sleeved on each cross bar (33), and each rotating column (34) is in contact with the four side walls of the moving bar (9).

5. The material discharging device for a precision ceramic 3D printer according to claim 1, characterized in that: A connecting pipe (40) is fixedly mounted on the upper side of the grinding disc a (19), a rotating bucket (17) is fixedly mounted on the upper side of the connecting pipe (40), the rotating bucket (17) is arranged below the guide bucket (13), two scraping strips (30) are fixedly mounted on the rotating rod (16), the two scraping strips (30) are both in contact with the lower inner wall of the tank body (1), and one side of the two scraping strips (30) in the counterclockwise direction is an inclined surface.

6. The material discharging device for a precision ceramic 3D printer according to claim 1, characterized in that: The tank cover (3) is provided with a plurality of arc-shaped material discharge grooves (4), a material feeding hopper (7) is fixedly installed on the upper side of the tank cover (3), a shielding tube (5) is fixedly installed on the tank cover (3), and the shielding tube (5) is sleeved on the rotary drive (6).

7. The material discharging device for a precision ceramic 3D printer according to claim 2, characterized in that: A support bar (25) is fixedly mounted on the inner wall of the short tube (39); a round box (29) is movably sleeved on the rotating rod (16); the round box (29) is fixedly connected to the support bar (25); the support bar (25) is arranged below the spiral half tube (12); a small bar (24) is fixedly mounted on the inner wall of the round box (29); a small ring (26) is fixedly mounted on the small bar (24); a connecting rod (22) is rotatably connected in the small ring (26); a gear a (27) is fixedly mounted on the connecting rod (22); a rotating plate (41) is fixedly sleeved on the rotating rod (16); an annular rack (28) is fixedly mounted on the upper side of the rotating plate (41); the gear a (27) is meshingly connected to the annular rack (28).

8. The material discharging device for a precision ceramic (3)D printer according to claim 1, characterized in that: The rotating rod (16) is fixedly mounted with a gear b (23), the grinding disc b (31) is rotatably sleeved on the rotating rod (16), a round tube (21) is fixedly mounted on the lower side of the grinding disc b (31), the round tube (21) is movably sleeved on the rotating rod (16), a gear c (20) is fixedly mounted on the lower end of the round tube (21), the gear c (20) is movably sleeved on the rotating rod (16), and the gear c (20) is meshingly connected with the gear b (23).

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