A rotary spraying device for uniform glazing of daily-use ceramic tableware

Abstract

This invention relates to the field of ceramic tableware processing technology and discloses a rotary spraying device for uniformly glazing daily-use ceramic tableware. The device includes a base, a rotating shaft rotatably mounted at the center of the top of the base, a turntable fixedly mounted on the top of the rotating shaft, and several rotating shafts rotatably mounted at equal intervals in a ring on the turntable. Each rotating shaft has a truncated cone fixedly mounted on its top for placing the ceramic tableware. The ceramic tableware body is placed on the top of the truncated cone. An internal support fixing component for securing the ceramic tableware is installed between the upper part of each rotating shaft and the bottom of the truncated cone. The top of the base has a mounting groove, inside which a motor is installed to alternately drive the several rotating shafts. This rotary spraying device has a multi-station alternating glazing structure for ceramic tableware, making it convenient and easy to use and operate. It is stable and reliable in assembly, disassembly, and rotation, and its performance meets the requirements for glazing processing of ceramic tableware.

Description

Technical Field

[0001] This invention belongs to the field of ceramic tableware processing technology, specifically a rotary spraying device for uniformly glazing daily-use ceramic tableware. Background Technology

[0002] Ceramic tableware is a type of daily-use porcelain product made from natural mineral raw materials such as clay, feldspar, and quartz through molding, drying, and high-temperature sintering. It boasts advantages such as hardness, good heat resistance, strong chemical stability, and beautiful appearance, and is widely used in homes and restaurants. Glazing is a crucial step in the processing of ceramic tableware. Glazing involves applying a layer of vitreous glaze to the surface of the ceramic body, which, after high-temperature firing, forms a dense and smooth glaze layer. Its main functions include improving the physical properties of the tableware, such as enhancing its impermeability, wear resistance, and corrosion resistance; improving its appearance and texture, making the surface bright, smooth, and richly colored; and effectively isolating harmful substances, thus improving food safety. Depending on the intended use and process requirements, various glazing methods can be used, such as dipping, spraying, and brushing. High-quality glazing not only ensures the durability and aesthetics of the product but also directly affects the overall quality and market competitiveness of the ceramic tableware.

[0003] Currently, when glazing ceramic tableware, it is necessary to install the tableware on a rotatable fixture, and then spray the glazing onto the rotating tableware using a spray gun. After the glazing is completed, the glazed tableware needs to be removed, and then the unglazed tableware needs to be reinstalled on the fixture before the glazing process can continue. This glazing operation is inconvenient and has low efficiency. Therefore, improvements are needed to address these issues. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a rotary spraying device for uniformly glazing daily-use ceramic tableware, comprising a base, a rotating shaft rotatably mounted at the center of the top of the base, a turntable fixedly mounted on the top of the rotating shaft, a plurality of rotating shafts rotatably mounted at equal intervals in a ring on the turntable, a truncated cone for placing ceramic tableware fixedly mounted on the top of each rotating shaft, a ceramic tableware body placed on the top of the truncated cone, an inner support fixing member for fixing the ceramic tableware installed between the upper part of each rotating shaft and the bottom of the truncated cone, an installation groove opened on the top of the base, and a motor for alternately driving the plurality of rotating shafts is installed inside the installation groove.

[0005] Preferably, the inner support fixing component includes a ring plate rotatably mounted on the upper part of the rotating shaft via a bearing. The top of the ring plate is rotatably connected to four push arms at equal intervals in a ring. Each of the four push arms has a sliding groove in the middle. The bottom of the frustum is fixedly mounted with four inverted T-shaped pins at equal intervals in a ring. The inverted T-shaped pins are installed inside the sliding grooves. Each of the four push arms has a clamping block fixedly mounted at the end away from the ring plate.

[0006] Preferably, a worm gear ring is fixedly installed at the bottom of the ring plate on the surface of the rotating shaft, and a connecting plate is fixedly installed on the surface of the rotating shaft. A worm gear that meshes with the worm gear ring is rotatably installed on the connecting plate, and a rotating wheel is fixedly installed at one end of the worm gear.

[0007] Preferably, the bottom of each of the rotating shafts extends to the bottom of the turntable and is fixedly mounted with gears.

[0008] Preferably, a circular block is fixedly installed at the output end of the motor, and an arc-shaped transmission tooth for intermittent transmission of the gear is fixedly installed on the circumferential surface of the circular block, and an arc-shaped extrusion block is fixedly installed at the bottom of the circular block.

[0009] Preferably, a fixing block is fixedly installed on the top of the base, a square T-shaped rod is fixedly installed on the top of the fixing block, a pressing block is movably sleeved on the upper part of the square T-shaped rod, a compression spring is sleeved on the surface of the square T-shaped rod, the top and bottom of the compression spring are fixedly connected to the pressing block and the fixing block respectively, a vertical block is fixedly installed at one end of the top of the pressing block, and a ball bearing is embedded in the top of the vertical block.

[0010] Preferably, a limit pin is fixedly installed at one end of the extrusion block, a large gear ring matching the arc-shaped transmission teeth is fixedly installed on the upper part of the rotating shaft, the arc-shaped transmission teeth intermittently rotate the large gear ring at equal angles, a circular plate coaxial with the rotating shaft is fixedly installed at the bottom of the large gear ring, and a number of limit slots are opened at equal intervals in a ring at the bottom of the circular plate, and the upper part of the limit pin is movably inserted into the inside of the limit slot.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This rotary spraying device features a multi-station alternating glazing structure for ceramic tableware. This structure allows for continuous adjustment and rotation of the glazing position on the ceramic tableware, effectively ensuring the continuity and uniformity of the glazing process, as well as the efficiency and quality of the glazing process. Furthermore, this multi-station alternating glazing structure facilitates the disassembly and fixing of the ceramic tableware, thus effectively ensuring the stability of the spraying process. The ceramic tableware body is placed on top of the truncated cone. The rotating wheel causes the worm gear to rotate, which in turn drives the worm wheel ring to rotate. This rotation of the ring ring then drives four push arms to move, which in turn moves the clamping blocks. These clamping blocks, through their rubber layer, provide internal support, centering, and clamping to the bottom of the ceramic tableware body, or to the inside of an inverted ceramic tableware body. This ensures the ceramic tableware body is stably fixed to the top of the truncated cone. After glazing and spraying, the ceramic tableware body is manually disassembled and reinstalled to be glazed and sprayed again, allowing for continuous spraying. Once the ceramic tableware body is stably installed and fixed on the top of the round table, the motor is started to make the round block drive the arc-shaped transmission gear and the arc-shaped extrusion block to rotate. The rotation of the arc-shaped extrusion block will first extrude the first ball through the extrusion slope at its end, thus causing the first ball to drive the vertical block to push the extrusion block to slide down on the square T-shaped rod and extrude the compression spring. The downward movement of the extrusion block will drive the limit pin to move down, thus causing the limit pin to withdraw from the inside of the limit slot. Next, the rotation of the arc-shaped transmission teeth will drive the large gear ring to rotate. The rotation of the large gear ring will drive the large gear ring, the rotating shaft and the turntable to rotate. When the arc-shaped extrusion block separates from the ball and the arc-shaped transmission teeth separate from the large gear ring, the large gear ring, the rotating shaft and the turntable will rotate at equal angles. The rotation of the turntable will drive several rotating shafts, several truncated cones and the ceramic tableware body on the truncated cones to rotate at equal angles, so that the ceramic tableware body on the truncated cones stops at the front of the spraying equipment. The rotation of the large gear ring will cause the limit pin of another limit slot to move directly above it. Then, through the elastic restoring force of the compressed spring, the squeezing block will cause the vertical block, the ball bearing and the limit pin to move upward and reset, so that the limit pin is inserted into the interior of another limit slot. This allows the rotating shaft, turntable, rotating shaft, frustum and ceramic tableware body to remain stable. At the same time, the rotation of the rotating shaft will cause the gear to move in a circle. At this time, one of the gears stops on the trajectory of the arc-shaped transmission gear. Then, the rotating arc-shaped transmission gear will drive one of the gears to rotate, thereby causing the gear to drive the rotating shaft, the frustum and the ceramic tableware body to rotate, so that the ceramic tableware body rotates once in front of the spraying equipment. At the same time, by turning on the spraying equipment, it performs a uniform glazing spraying operation on the rotating ceramic tableware body. Then, the rotating arc-shaped transmission gear will separate from one of the gears, and the rotating arc-shaped extrusion block will extrude the ball bearing again, causing the limit pin to retract from the limit slot. At the same time, the rotating arc-shaped transmission gear will drive the large gear ring again, causing the ceramic tableware body to rotate at an equal angle. This allows the glazed ceramic tableware body to move out of front of the spraying equipment, while another ceramic tableware body moves to front of the spraying equipment. The ceramic tableware body in front of the spraying equipment will then rotate to align the spraying equipment and perform a uniform glazing operation. Through the repeated operation of the above steps, the glazing operation on the ceramic tableware body can be continuously performed. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1 This is a cross-sectional view of the rotary spraying device for uniformly glazing daily-use ceramic tableware according to the present invention. Figure 2 For the present invention Figure 1 Schematic diagram of local structure Figure 1 ; Figure 3 For the present invention Figure 1 Schematic diagram of local structure Figure 2 ; Figure 4 For the present invention Figure 3 A schematic diagram of a partial structure; Figure 5 For the present invention Figure 4 A partial upward-view structural diagram; Figure 6 For the present invention Figure 1 Schematic diagram of local structure Figure 3 ; Figure 7 For the present invention Figure 6 A schematic diagram of a partial structure; In the diagram: 1. Base; 2. Rotating shaft; 3. Turntable; 4. Rotating shaft; 5. Frustum; 6. Ceramic tableware body; 7. Internal support fixing component; 8. Mounting slot; 9. Motor; 10. Ring plate; 11. Push arm; 12. Sliding through groove; 13. Inverted T-pin; 14. Clamping block; 15. Worm gear ring; 16. Connecting plate; 17; 18. Worm; 19. Rotating wheel; 20. Arc-shaped extrusion block; 21. Round block; 22. Arc-shaped transmission gear; 23. Fixing block; 24. Square T-shaped rod; 25. Extrusion block; 26. Compression spring; 27. Vertical block; 28. Ball bearing; 29. ​​Limiting pin; 30. Ring plate; 31. Limiting slot; 32. Support and protection ring plate; 33. Large gear ring. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] Example 1, by Figure 1 , Figure 2 , Figure 3 and Figure 6 The present invention includes a base 1, a rotating shaft 2 rotatably mounted on the center of the top of the base 1, a turntable 3 fixedly mounted on the top of the rotating shaft 2, the base 1 having a circular convex structure, a support and protective ring plate 32 fixedly mounted on the bottom of the turntable 3, and a ball bearing 2 that rolls in contact with the base 1 mounted on the bottom of the support and protective ring plate 32, thereby effectively supporting the turntable 3 and maintaining the stability of the turntable 3's rotation.

[0016] A number of rotating shafts 4 are equidistantly mounted in a ring on the turntable 3. The bottom of each rotating shaft 4 extends to the bottom of the turntable 3 and is fixedly mounted with a gear 19. A round platform 5 for placing ceramic tableware is fixedly mounted on the top of each rotating shaft 4. The ceramic tableware body 6 is placed on the top of the round platform 5. An inner support fastener 7 for fixing the ceramic tableware is installed between the upper part of each rotating shaft 4 and the bottom of the round platform 5. The inner support fastener 7 can provide inner support and locking to the inside of the bottom ring foot of the ceramic tableware body 6. At the same time, the inner support fastener 7 can also provide inner support and locking to the inside of the ceramic tableware body 6 that is upside down on the top of the round platform 5. The top of the base 1 is provided with a mounting groove 8. A motor 9 that alternately drives the several rotating shafts 4 and rotating shafts 2 is installed inside the mounting groove 8.

[0017] This rotary spraying device features a multi-station alternating glazing structure for ceramic tableware. This structure allows for continuous adjustment and rotation of the glazing position, effectively ensuring the continuity and uniformity of the glazing process, as well as the efficiency and quality of the glazing. Furthermore, the structure facilitates easy disassembly and fixation of the tableware, ensuring the stability of the spraying process. The device is also simple in design, convenient to use and operate, and offers stable and reliable disassembly and rotation, meeting the performance requirements for glazing ceramic tableware.

[0018] Example 2, based on Example 1, is... Figures 2 to 5 The inner support fixing component 7 includes a ring plate 10 rotatably mounted on the upper part of the rotating shaft 4 via bearings. Four push arms 11 are rotatably connected to the top of the ring plate 10 at equal intervals in a ring. Each of the four push arms 11 has a sliding groove 12 in the middle. Four inverted T-shaped pins 13 are fixedly mounted at equal intervals in a ring at the bottom of the frustum 5. The inverted T-shaped pins 13 are installed inside the sliding grooves 12. Each of the four push arms 11 has a clamping block 14 fixedly mounted at the end away from the ring plate 10. Each clamping block 14 has a rubber layer installed on it for protective clamping of the ceramic tableware body 6, thereby effectively centering and fixing the ceramic tableware body 6. A worm gear ring 15 is fixedly mounted on the bottom of the ring plate 10 and located on the surface of the rotating shaft 4. A connecting plate 16 is fixedly mounted on the surface of the rotating shaft 4. A worm 17 that meshes with the worm gear ring 15 is rotatably mounted on the connecting plate 16. A rotating wheel 18 is fixedly mounted at one end of each worm 17, thereby effectively adjusting the inner support fixing component 7.

[0019] Specifically, the ceramic tableware body 6 is placed on top of the frustum 5. Then, the worm gear 17 is rotated by rotating the wheel 18. The rotation of the worm gear 17 will drive the worm wheel ring 15 to rotate, which will drive the ring plate 10 to rotate. The rotation of the ring plate 10 will drive the four push arms 11 to move and rotate. The movement of the four push arms 11 will drive the clamping blocks 14 to move, so that the four clamping blocks 14 can internally support, center, abut, and lock the inside of the bottom ring foot of the ceramic tableware body 6 through the rubber layer, or internally support, center, abut, and lock the inside of the inverted ceramic tableware body 6, so that the ceramic tableware body 6 is stably installed and fixed on the top of the frustum 5.

[0020] Example 3, based on Example 1, is... Figures 2 to 7As shown, a circular block 21 is fixedly installed at the output end of the motor 9. An arc-shaped transmission gear 22 for intermittent transmission of the gear 19 is fixedly installed on the circumference of the circular block 21. Each rotation of the arc-shaped transmission gear 22 drives the gear 19 to rotate one revolution. An arc-shaped extrusion block 20 is fixedly installed at the bottom of the circular block 21, with both ends of the arc-shaped extrusion block 20 having an extrusion inclined surface structure. A fixing block 23 is fixedly installed at the top of the base 1. A square T-shaped rod 24 is fixedly installed at the top of the fixing block 23. An extrusion block 25 is movably sleeved on the upper part of the square T-shaped rod 24. A compression spring 26 is sleeved on the surface of the T-shaped rod 24. The top and bottom of the compression spring 26 are fixedly connected to the extrusion block 25 and the fixing block 23, respectively. A vertical block 27 is fixedly installed at one end of the top of the extrusion block 25. A ball bearing 28 is embedded in the top of the vertical block 27. The ball bearing 28 is located on the trajectory of the arc-shaped extrusion block 20 rotating in a circle. The rotation of the arc-shaped extrusion block 20 will squeeze the ball bearing 28, thereby driving the vertical block 27 to push the extrusion block 25 to slide down on the square T-shaped rod 24 and squeeze and compress the compression spring 26.

[0021] One end of the extrusion block 25 is fixedly installed with a limiting pin 29. The upper part of the rotating shaft 2 is fixedly installed with a large gear ring 33 that matches the arc-shaped transmission gear 22. The arc-shaped transmission gear 22 intermittently performs equal-angle transmission rotation on the large gear ring 33. The bottom of the large gear ring 33 is fixedly installed with a circular plate 30 that is coaxial with the rotating shaft 2. The bottom of the circular plate 30 is provided with several limiting slots 31 at equal intervals. The number of limiting slots 31 is the same as that of the rotating shaft 2, and the position of the limiting slots 31 is aligned with the position of the rotating shaft 2. The upper part of the limiting pin 29 is movably inserted into the inside of the limiting slot 31, so as to effectively perform equal-angle transmission rotation on the rotating shaft 2 and ensure that the rotating shaft 2 remains effective and stable after adjustment.

[0022] Specifically, after the ceramic tableware body 6 is stably installed and fixed on the top of the round table 5, the motor 9 is started to make the round block 21 drive the arc-shaped transmission gear 22 and the arc-shaped pressing block 20 to rotate. The rotation of the arc-shaped pressing block 20 will first press the ball 28 downward through the pressing slope at its end, so that the ball 28 drives the vertical block 27 to push the pressing block 25 to slide downward on the square T-shaped rod 24 and press and compress the compression spring 26. The downward movement of the pressing block 25 will drive the limiting pin 29 to move downward, so that the limiting pin 29 is withdrawn from the inside of the limiting slot 31. Next, the rotation of the arc-shaped transmission gear 22 will drive the large gear ring 33 to rotate. The rotation of the large gear ring 33 will drive the large gear ring 33, the rotating shaft 2 and the turntable 3 to rotate. When the arc-shaped extrusion block 20 separates from the ball 28 and the arc-shaped transmission gear 22 separates from the large gear ring 33, the large gear ring 33, the rotating shaft 2 and the turntable 3 will rotate at equal angles. The rotation of the turntable 3 will drive several rotating shafts 4, several truncated cones 5 and the ceramic tableware body 6 on the truncated cones 5 to rotate at equal angles, so that the ceramic tableware body 6 on the truncated cones 5 stops at the front of the spraying equipment. The rotation of the large gear ring 33 will cause the limit pin 29 of the other limit slot 31 to move directly above it. Then, through the elastic restoring force of the compression spring 26, the pressing block 25 will cause the vertical block 27, the ball 28 and the limit pin 29 to move upward and reset, so that the limit pin 29 is inserted into the interior of the other limit slot 31, thereby making the rotating shaft 2, turntable 3, rotating shaft 4, frustum 5 and ceramic tableware body 6 stable. At the same time, the rotation of the rotating shaft 4 will cause the gear 19 to move in a circle. At this time, one of the gears 19 stops on the trajectory of the arc-shaped transmission gear 22. Then the rotating arc-shaped transmission gear 22 will drive one of the gears 19 to rotate, thereby causing the gear 19 to drive the rotating shaft 4, the frustum 5 and the ceramic tableware body 6 to rotate, so that the ceramic tableware body 6 will rotate once in front of the spraying equipment. At the same time, by turning on the spraying equipment, it will perform a uniform glazing spraying operation on the rotating ceramic tableware body 6. Then, the rotating arc-shaped transmission gear 22 will separate from one of the gears 19, and then the rotating arc-shaped extrusion block 20 will extrude the ball 28 again, causing the limiting pin 29 to withdraw from the inside of the limiting slot 31. At the same time, the rotating arc-shaped transmission gear 22 will drive the large gear ring 33 again, thereby causing the ceramic tableware body 6 to rotate at an equal angle. This allows the glazed ceramic tableware body 6 to move out of front of the spraying equipment, while another ceramic tableware body 6 moves to front of the spraying equipment. Then, the ceramic tableware body 6 in front of the spraying equipment will rotate to align the spraying equipment and perform glazing spraying operations evenly. Through the repeated operation of the above steps, the glazing spraying operation can be continuously performed on the ceramic tableware body 6. The ceramic tableware body 6, after being glazed and sprayed, can be disassembled and reinstalled by hand to achieve continuous spraying.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary spraying device for uniformly glazing daily-use ceramic tableware, comprising a base (1), characterized in that: A rotating shaft (2) is rotatably installed in the middle of the top of the base (1). A turntable (3) is fixedly installed on the top of the rotating shaft (2). Several rotating shafts (4) are rotatably installed in a ring at equal intervals on the turntable (3). A round platform (5) for placing ceramic tableware is fixedly installed on the top of each rotating shaft (4). The ceramic tableware body (6) is placed on the top of the round platform (5). An inner support fixing piece (7) for fixing the ceramic tableware is installed between the upper part of each rotating shaft (4) and the bottom of the round platform (5). An installation groove (8) is opened on the top of the base (1). A motor (9) for alternately driving several rotating shafts (4) and rotating shafts (2) is installed inside the installation groove (8).

2. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 1, characterized in that: The inner support fixing component (7) includes a ring plate (10) rotatably mounted on the upper part of the rotating shaft (4) via a bearing. The top of the ring plate (10) is rotatably connected with four push arms (11) at equal intervals in a ring. Each of the four push arms (11) has a sliding groove (12) in the middle. The bottom of the truncated cone (5) is fixedly mounted with four inverted T-shaped pins (13) at equal intervals in a ring. The inverted T-shaped pins (13) are installed inside the sliding grooves (12). Each of the four push arms (11) has a clamping block (14) fixedly mounted at the end away from the ring plate (10).

3. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 2, characterized in that: The bottom of the ring plate (10) is fixedly installed with a worm gear ring (15) located on the surface of the rotating shaft (4), and a connecting plate (16) is fixedly installed on the surface of the rotating shaft (4). A worm (17) that meshes with the worm gear ring (15) is rotatably installed on the connecting plate (16), and a wheel (18) is fixedly installed at one end of the worm (17).

4. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 1, characterized in that: The bottom of several of the rotating shafts (4) extends to the bottom of the turntable (3) and is fixedly mounted with gears (19).

5. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 4, characterized in that: A circular block (21) is fixedly installed at the output end of the motor (9). An arc-shaped transmission tooth (22) for intermittent transmission of the gear (19) is fixedly installed on the circumferential surface of the circular block (21). An arc-shaped extrusion block (20) is fixedly installed at the bottom of the circular block (21).

6. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 5, characterized in that: A fixing block (23) is fixedly installed on the top of the base (1). A square T-shaped rod (24) is fixedly installed on the top of the fixing block (23). A pressing block (25) is movably sleeved on the upper part of the square T-shaped rod (24). A compression spring (26) is sleeved on the surface of the square T-shaped rod (24). The top and bottom of the compression spring (26) are fixedly connected to the pressing block (25) and the fixing block (23) respectively. A vertical block (27) is fixedly installed at one end of the top of the pressing block (25). A ball bearing (28) is embedded in the top of the vertical block (27). The ball bearing (28) is located on the trajectory of the arc-shaped pressing block (20) rotating in a circle.

7. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 6, characterized in that: One end of the extrusion block (25) is fixedly installed with a limiting pin (29). The upper part of the rotating shaft (2) is fixedly installed with a large gear ring (33) that matches the arc-shaped transmission gear (22). The arc-shaped transmission gear (22) intermittently rotates the large gear ring (33) at equal angles. The bottom of the large gear ring (33) is fixedly installed with a circular plate (30) coaxial with the rotating shaft (2). The bottom of the circular plate (30) is provided with several limiting slots (31) at equal intervals. The upper part of the limiting pin (29) is movably inserted into the inside of the limiting slot (31).

8. The rotary spraying device for uniformly glazing daily-use ceramic tableware according to claim 1, characterized in that: The base (1) has a circular convex structure. A support and protection ring plate (32) is fixedly installed at the bottom of the turntable (3). A ball bearing that rolls in contact with the base (1) is installed at the bottom of the support and protection ring plate (32).

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