A mixer and method for the production of ceramic products

Abstract

The present invention discloses a mixer and a method for the production of ceramic products, relating to the technical field of ceramic product mixers. A mixer for the production of ceramic products includes a mounting frame, and further includes: an inner cylinder, a middle cylinder, and an outer cylinder that are sequentially sleeved, and the inner cylinder is located inside the middle cylinder; in the present invention, when the folded walls on the inner wall of the outer cylinder approach and move away from the folded walls on the outer wall of the middle cylinder, a rubbing effect will be produced on the powder material; when the folded walls on the inner wall of the outer cylinder and the folded walls on the outer wall of the middle cylinder approach each other, the distance between adjacent wall surfaces on the folded walls will increase and decrease, and the powder material at the position where the distance decreases will disperse the agglomerated powder material during the process of the decreasing distance. At the same time, an upward rubbing effect will be generated between the wall surfaces where the distance decreases, rubbing the powder material particles into powder materials with smaller particle sizes, thereby changing the particle size of the powder material, making the particle size of the powder material uniform and easier to mix evenly.

Description

Technical Field

[0001] The present invention belongs to the technical field of ceramic product mixers, and specifically relates to a mixer and method for ceramic product production. Background Art

[0002] Before sintering ceramic products, it is necessary to uniformly mix the raw materials. The traditional mixing methods include manual mixing, ball milling mixing, and mechanical mixing.

[0003] For manual mixing, various raw material powders are poured into a mixer for stirring to make the powders evenly mixed. Then, they are repeatedly screened with a fine-pore sieve to screen out the required particle size, and the uniformity of the powders is judged during screening. This method not only requires a large amount of manpower and increases cost investment, but also has strict requirements on the types and particle sizes of the powders.

[0004] When using manual mixing currently, the mixing uniformity is poor, and unevenness of sintered products is likely to occur, resulting in product rejection and increased costs.

[0005] For ball milling mixing, its uniformity has been greatly improved compared to manual mixing. However, there are still some products with particle aggregation in sintered products, indicating that the uniformity during the mixing process does not meet the theoretical requirements. At the same time, one-time ball milling takes a long time and the amount of powder is limited, which is suitable for experimental research and development but not for large-scale production, thus causing limitations in production.

[0006] For mechanical mixing, the mixing equipment used in the ceramic industry includes high-speed mixers. Although the loading capacity is large, there is still powder agglomeration. At the same time, the high-speed mixer cannot further reduce the powder particles. Therefore, we propose a mixer that can evenly mix the powders while avoiding powder agglomeration and solving the problem of inconsistent particle sizes. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a mixer for ceramic product production that can overcome the above problems or at least partially solve the above problems.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A mixer for the production of ceramic products, including a mounting frame, further comprising: an inner cylinder, a middle cylinder, and an outer cylinder sleeved in sequence, the inner cylinder is located inside the middle cylinder, and the middle cylinder is located inside the outer cylinder; a stirring and lifting mechanism located in the inner cylinder for transporting the powder in the inner cylinder to the upper opening of the inner cylinder when stirring the powder in the inner cylinder; a mesh screen disposed between the inner cylinder and the middle cylinder for screening the powder; a through groove circumferentially formed on the middle cylinder for allowing the agglomerated powder to pass through the middle cylinder and enter the space between the middle cylinder and the outer cylinder; broken line walls are respectively formed on the inner wall of the outer cylinder and the outer wall of the middle cylinder, and a broken line rubbing channel is formed between the broken line wall on the inner wall of the outer cylinder and the broken line wall on the outer wall of the middle cylinder for dispersing and rubbing the entering agglomerated powder through the broken line walls when the broken line wall on the inner wall of the outer cylinder and the broken line wall on the outer wall of the middle cylinder approach or move away from each other.

[0009] Preferably, the stirring and lifting mechanism includes a spiral blade installed on a main shaft, one end of the main shaft is rotatably connected to the bottom wall of the inner cylinder, and the other end of the main shaft is fixedly connected to the output end of a first motor installed on the mounting frame.

[0010] Further, the mesh screen is inclined, the mesh screen is located below the through groove, and the height of the middle cylinder is higher than that of the inner cylinder.

[0011] Preferably, a connecting frame is installed on the main shaft through a limiting groove, the connecting frame is fixedly connected to the outer cylinder, second motors are symmetrically and fixedly connected to the mounting frame, the output ends of the second motors are fixedly connected with first eccentric wheels, a circumferential surface is provided on the connecting frame, the first eccentric wheels correspond to the circumferential surface, a connecting disk is fixedly connected to the main shaft, and a first spring is sleeved between the connecting disk and the connecting frame. One end of the first spring is fixedly connected to the connecting disk, and the other end of the first spring is fixedly connected to the connecting frame for driving the outer cylinder to rotate by the main shaft, and the first eccentric wheels reciprocally push the outer cylinder to move up and down.

[0012] Preferably, a third motor is installed on the inner cylinder, and a second eccentric wheel is fixedly connected to the output end of the third motor, and the second eccentric wheel corresponds to the bottom of the middle cylinder for pushing the middle cylinder to move up and down.

[0013] Further, a plurality of groups of mounting grooves are circumferentially formed on the broken line wall of the middle cylinder, a grinding plate is slidably connected in the mounting grooves, the grinding plate is connected to the mounting grooves through second springs, and grinding grooves are formed on the grinding plate for rubbing the powder in the broken line rubbing channel into round particles when the broken line wall on the inner wall of the outer cylinder and the grinding plate approach each other.

[0014] Further, an installation cavity is formed on the inner wall of the middle cylinder. A piston cylinder is installed in the installation cavity. A piston rod with a piston plate at one end is slidably connected in the piston cylinder. A first air outlet pipe is arranged in the piston rod. An exhaust hole is formed in the grinding plate. One end of the exhaust hole leads to the grinding groove. The end of the first air outlet pipe away from the piston cylinder is communicated with the exhaust hole. A first air inlet pipe is installed on the piston cylinder and is communicated with the first chamber of the piston cylinder. First one-way valves are arranged in both the first air inlet pipe and the first air outlet pipe.

[0015] Further, a second air inlet pipe and a second air outlet pipe are installed on the piston cylinder. Both the second air inlet pipe and the second air outlet pipe lead to the second chamber of the piston cylinder. The end of the second air outlet pipe away from the piston cylinder faces the screen. Both the first air inlet pipe and the second air inlet pipe lead into the middle cylinder. Second one-way valves are arranged in both the second air inlet pipe and the second air outlet pipe.

[0016] Further, the end of the piston cylinder extends into the middle cylinder.

[0017] A method for using a mixer for ceramic product production mainly includes the following steps:

[0018] S1. Pour various powders to be mixed into the inner cylinder. Start the first motor to stir the powders in the inner cylinder, and at the same time make the powders in the inner cylinder overflow from the open end of the inner cylinder and fall on the screen.

[0019] S2. By driving the folded walls on the outer wall of the middle cylinder and the folded walls on the inner wall of the outer cylinder to approach or move away from each other, the powders entering the folded grinding channel are dispersed, and a grinding effect is generated when the folded walls approach each other, and the powder particles are ground into powders with smaller particle sizes.

[0020] S3. Further grind the powders through the provided grinding plate. While reducing the particle size, make the powders rounder, reduce the edges and corners, improve the fluidity of the ground powders. After mixing is completed, discharge and use.

[0021] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: When the folded walls on the inner wall of the outer cylinder and the folded walls on the outer wall of the middle cylinder approach and move away from each other, a grinding effect will be produced on the powders. When the folded walls on the inner wall of the outer cylinder and the folded walls on the outer wall of the middle cylinder approach each other, the distance between adjacent wall surfaces on the folded walls will increase and decrease. The powders at the positions where the distance decreases will disperse the agglomerated powders during the process of the distance decreasing. At the same time, an upward grinding effect will be generated between the wall surfaces where the distance decreases. Then the area where the distance increases will change to where the distance decreases, and a grinding effect will be formed on the powders in this area again, grinding the powder particles into powders with smaller particle sizes, thereby changing the particle size of the powders, making the particle size of the powders uniform and easier to mix evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the drawings:

[0023] Figure 1 is a schematic three - dimensional structure diagram of a mixer for ceramic product production proposed by the present invention; Figure 1 ;

[0024] Figure 2 is a schematic structure diagram at position A of a mixer for ceramic product production proposed by the present invention; Figure 1

[0025] Figure 3 is a schematic three - dimensional structure diagram of a mixer for ceramic product production proposed by the present invention; Figure 2 ;

[0026] Figure 4 is a schematic structure diagram at position B of a mixer for ceramic product production proposed by the present invention; Figure 3

[0027] Figure 5 is a schematic diagram of the folding walls of a mixer for ceramic product production proposed by the present invention approaching and moving away from each other;

[0028] Figure 6 is a schematic three - dimensional structure diagram of a mixer for ceramic product production proposed by the present invention; Figure 3 ;

[0029] Figure 7 is a schematic structure diagram at position C of a mixer for ceramic product production proposed by the present invention; Figure 6

[0030] Figure 8 is a front view of a mixer for ceramic product production proposed by the present invention; Figure 1 ;

[0031] Figure 9 is a front view of a mixer for ceramic product production proposed by the present invention; Figure 2 ;

[0032] Figure 10 is a schematic structure diagram of the annular surface of a mixer for ceramic product production proposed by the present invention;

[0033] Figure 11 is a schematic structure diagram of the main shaft and the connecting frame of a mixer for ceramic product production proposed by the present invention.

[0034] ​​​In the figure: 1. Mounting frame; 11. Inner cylinder; 111. Main shaft; 112. Helical blade; 113. First motor; 114. Connecting plate; 115. First spring; 116. Connecting frame; 117. Annular surface; 118. Second motor; 119. First eccentric wheel; 12. Middle cylinder; 120. Base plate; 1200. Through groove; 121. Mounting groove; 122. Grinding plate; 123. Grinding groove; 124. Piston cylinder; 125. Exhaust hole; 126. Second spring; 1240. Piston rod; 1241. First chamber; 12411. First intake pipe; 12412. First outlet pipe; 1242. Second chamber; 12421. Second intake pipe; 12422. Second outlet pipe; 13. Outer cylinder; 131. Folded wall; 132. Folded rubbing channel; 14. Screen; 15. Fixed rod; 16. Collection box; 17. Third motor; 171. Second eccentric wheel. Detailed implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0036] Embodiment: Refer to Figures 1 - 11 , a mixer for the production of ceramic products, including a mounting frame 1, and further including: an inner cylinder 11, a middle cylinder 12, and an outer cylinder 13 that are sequentially sleeved. The inner cylinder 11 is located inside the middle cylinder 12, and the middle cylinder 12 is located inside the outer cylinder 13. The inner cylinder 11 is connected to the mounting frame 1 through a fixed rod 15 for supporting and fixing the inner cylinder 11; a stirring and lifting mechanism, located in the inner cylinder 11, for transporting the powder in the inner cylinder 11 to the upper opening of the inner cylinder 11 when stirring the powder in the inner cylinder 11; a screen 14, arranged between the inner cylinder 11 and the middle cylinder 12, for screening the powder; a through groove 1200, circumferentially opened on the middle cylinder 12, for allowing the agglomerated powder to pass through the middle cylinder 12 and enter between the middle cylinder 12 and the outer cylinder 13; folded walls 131 are respectively opened on the inner wall of the outer cylinder 13 and the outer wall of the middle cylinder 12. A folded rubbing channel 132 is formed between the folded wall 131 on the inner wall of the outer cylinder 13 and the folded wall 131 on the outer wall of the middle cylinder 12, for dispersing and rubbing the entering agglomerated powder through the folded wall 131 when the folded wall 131 on the inner wall of the outer cylinder 13 and the folded wall 131 on the outer wall of the middle cylinder 12 approach or move away from each other.

[0037] When the device is in use, by pouring the powders required for various ceramic products into the inner cylinder 11 and starting the stirring and lifting mechanism, when stirring the powder in the inner cylinder 11, the powder in the inner cylinder 11 is lifted to the upper opening position of the inner cylinder 11, that is, the powder in the inner cylinder 11 overflows from the upper opening of the inner cylinder 11.

[0038] When the powdered material lifted upward reaches the opening of the inner cylinder 11, the powdered material falls on the screen 14 between the inner cylinder 11 and the middle cylinder 12. The powdered material that meets the particle size of the screen 14 passes through the screen 14, while the agglomerated and larger-sized powdered materials are blocked by the screen 14 and then enter the folded-line rubbing channel 132 between the outer cylinder 13 and the middle cylinder 12 through the through groove 1200;

[0039] After entering, when the folded-line wall 131 on the inner wall of the outer cylinder 13 approaches and moves away from the folded-line wall 131 on the outer wall of the middle cylinder 12, a rubbing effect will be generated on the powdered material. As Figure 5 shown, when the folded-line wall 131 on the inner wall of the outer cylinder 13 and the folded-line wall 131 on the outer wall of the middle cylinder 12 approach each other, there will be a phenomenon of increasing and decreasing the distance between adjacent wall surfaces on the folded-line wall 131. The powdered material in the area where the distance decreases will disperse the agglomerated powdered material during the process of the distance decreasing. At the same time, an upward rubbing effect will be generated between the wall surfaces where the distance decreases. Subsequently, the area where the distance increases will change to the area where the distance decreases, and a rubbing effect will be formed on the powdered material in this area again, rubbing the powdered material particles into powdered material with a smaller particle size, thereby changing the particle size of the powdered material, making the particle size of the powdered material uniform and easier to be mixed evenly.

[0040] In one embodiment, the stirring and lifting mechanism includes a spiral blade 112 installed on the main shaft 111. One end of the main shaft 111 is rotatably connected to the bottom wall of the inner cylinder 11, and the other end of the main shaft 111 is fixedly connected to the output end of a first motor 113 installed on the mounting frame 1;

[0041] The first motor 113 drives the main shaft 111 to rotate, and the main shaft 111 drives the spiral blade 112 to rotate. Then, the spiral blade 112 lifts the powdered material in the inner cylinder 11, that is, conveys it upward, and stirs various powdered materials in the inner cylinder 11 during the conveying process;

[0042] At the same time, when various powdered materials are poured into the inner cylinder 11, the main shaft 111 can also be driven to reverse, so that when the spiral blade 112 rotates, it stirs the powdered material in the inner cylinder 11 without generating a lifting effect, so that the powdered material is first stirred in the inner cylinder 11 and then lifted.

[0043] In one embodiment, the screen 14 is inclined. The screen 14 is located below the through groove 1200, and the height of the middle cylinder 12 is higher than that of the inner cylinder 11;

[0044] The screen 14 is set to be inclined, and a certain height difference is formed between the inclined end of the screen 14 towards the outer cylinder 13 and the through groove 1200, so that the powdered material falling from the inner cylinder 11 onto the screen 14 first gathers on the screen 14, avoiding directly entering the folded-line rubbing channel 132;

[0045] By setting the height of the middle cylinder 12 to be higher than that of the inner cylinder 11, it is possible to block the powder overflowing from the inner cylinder 11 and prevent it from directly overflowing into the folded grinding channel 132, ensuring the separation effect of the agglomerated powder in the later stage and the grinding effect on larger particles.

[0046] In one embodiment, a connecting frame 116 is installed on the main shaft 111 through a limiting groove. The connecting frame 116 is fixedly connected to the outer cylinder 13. A second motor 118 is symmetrically and fixedly connected to the mounting frame 1. The output end of the second motor 118 is fixedly connected to a first eccentric wheel 119. An annular surface 117 is provided on the connecting frame 116. The first eccentric wheel 119 corresponds to the annular surface 117. A connecting disc 114 is fixedly connected to the main shaft 111. A first spring 115 is sleeved between the connecting disc 114 and the connecting frame 116. One end of the first spring 115 is fixedly connected to the connecting disc 114, and the other end of the first spring 115 is fixedly connected to the connecting frame 116, so as to reciprocally push the outer cylinder 13 to move up and down when the main shaft 111 drives the outer cylinder 13 to rotate.

[0047] In this embodiment, the screen 14 is fixedly connected to the middle cylinder 12 and the inner cylinder 11 respectively. The inner cylinder 11 is fixedly connected to the mounting frame 1 through a fixing rod 15.

[0048] Refer to Figure 3 , by starting the second motor 118, the second motor 118 drives the first eccentric wheel 119 to rotate, and the first eccentric wheel 119 reciprocally pushes the annular surface 117 on the connecting frame 116.

[0049] By symmetrically opening limiting grooves on the outer wall of the main shaft 111, and symmetrically and fixedly connecting limiting blocks to the inner wall of the connecting frame 116 that is in contact with the outer wall of the main shaft 111, and the limiting blocks are slidably connected in the limiting grooves, it is possible to drive the connecting frame 116 to rotate together when the main shaft 111 rotates, and when the first eccentric wheel 119 reciprocally pushes the connecting frame 116, the connecting frame 116 can slide on the main shaft 111. Through the provided first spring 115, it is convenient for the connecting frame 116 to reset, and further enables the outer cylinder 13 to reciprocally move up and down.

[0050] Furthermore, it is convenient for the folded wall 131 on the inner wall of the outer cylinder 13 to approach the folded wall 131 on the outer wall of the middle cylinder 12, facilitating the grinding effect on the powder in the folded grinding channel 132. At the same time, the outer cylinder 13 can further play a role in grinding the powder in the rotating state, reducing the particle size to meet the required standards.

[0051] In one embodiment, refer to Figure 5 、 Figure 6 、 Figure 8, a third motor 17 is installed on the inner cylinder 11, and a second eccentric wheel 171 is fixedly connected to the output end of the third motor 17. The second eccentric wheel 171 corresponds to the bottom of the middle cylinder 12 to push the middle cylinder 12 to move up and down;

[0052] The connecting frame 116 is fixedly connected to the outer cylinder 13 and the main shaft 111 respectively, so that when the main shaft 111 rotates, the outer cylinder 13 is driven to rotate through the connecting frame 116. One end of the screen 14 is fixedly connected to the middle cylinder 12. Sliders are symmetrically installed at one end of the screen 14 close to the inner cylinder 11. At the same time, sliding grooves are symmetrically formed on the outer wall of the middle cylinder 12, and the sliders are slidably connected in the sliding grooves;

[0053] When the third motor 17 is started, the third motor 17 drives the second eccentric wheel 171 to rotate, so that the second eccentric wheel 171 reciprocally drives the middle cylinder 12, causing the middle cylinder 12 to perform reciprocating up and down movements. Furthermore, it is convenient to drive the folded wall 131 on the outer wall of the middle cylinder 12 to approach or move away from the folded wall 131 on the inner wall of the outer cylinder 13, thereby producing the effect of upward rubbing of the powder in the folded rubbing channel 132. At the same time, combined with the rotation of the outer cylinder 13, the grinding effect on the powder is further improved, and thus the uniformity of the powder mixing is improved;

[0054] At the same time, the reciprocating up and down movement of the middle cylinder 12 can generate vibration, which further promotes the powder on the screen 14 to quickly pass through the screen 14. At the same time, under the vibration, the powder accumulated on the screen 14 can be stratified under the vibration, so that the agglomerated powder is located above. Furthermore, it further promotes the powder falling on the screen 14 from the inner cylinder 11 to quickly pass through the screen 14 for screening, and at the same time facilitates the agglomerated powder and the powder with larger particles to enter the folded rubbing channel 132 through the through groove 1200, thereby improving the screening effect.

[0055] In one embodiment, a plurality of groups of mounting grooves 121 are circumferentially formed on the folded wall 131 of the middle cylinder 12. A grinding plate 122 is slidably connected in the mounting grooves 121. The grinding plate 122 is connected to the mounting grooves 121 through a second spring 126. Grinding grooves 123 are formed on the grinding plate 122 to rub the powder in the folded rubbing channel 132 into round particles when the folded wall 131 on the inner wall of the outer cylinder 13 and the grinding plate 122 approach each other;

[0056] Refer to Figure 5, when the folded walls 131 on the middle cylinder 12 and the outer cylinder 13 approach each other, the distance between the wall surfaces of the folded walls 131 where the grinding plate 122 is located decreases. At this time, the powder between the grinding plate 122 and the wall surface of the folded wall 131 on the inner wall of the outer cylinder 13 will be squeezed into the grinding groove 123. The grinding groove 123 is a semi-circular arc groove concave into the grinding plate 122. The powder entering the grinding groove 123 will be rubbed when the wall surfaces of the folded walls 131 approach each other. On the one hand, while reducing the particle size, the powder becomes rounder, reducing the sharp corners, thereby improving the fluidity of the powder. Furthermore, when mixing with other powders, the fluidity can be improved, making it more convenient to stir evenly.

[0057] An installation cavity is formed on the inner wall of the middle cylinder 12. A piston cylinder 124 is installed in the installation cavity. A piston rod 1240 with a piston plate at one end is slidably connected in the piston cylinder 124. A first air outlet pipe 12412 is arranged in the piston rod 1240. An exhaust hole 125 is formed in the grinding plate 122. One end of the exhaust hole 125 leads to the grinding groove 123. The end of the first air outlet pipe 12412 far from the piston cylinder 124 is communicated with the exhaust hole 125. A first air inlet pipe 12411 is installed on the piston cylinder 124 and is communicated with the first chamber 1241 of the piston cylinder 124. First one-way valves are arranged in both the first air inlet pipe 12411 and the first air outlet pipe 12412;

[0058] When the wall surfaces of the folded walls 131 approach each other, the powder between the grinding plate 122 and the folded wall 131 on the inner wall of the outer cylinder 13 will squeeze the grinding plate 122, causing the grinding plate 122 to slide into the installation groove 121. At this time, one end of the grinding plate 122 will push the piston rod 1240, and the piston rod 1240 will squeeze the gas in the first chamber 1241. The gas enters the first air outlet pipe 12412 and then enters the exhaust hole 125 and is discharged from the exhaust hole 125, which is convenient for blowing off the powdered material in the grinding groove 123 and avoiding affecting the rubbing of large-particle powder;

[0059] When the wall surfaces of the folded walls 131 where the grinding plate 122 is located move away from each other, the grinding plate 122 is reset under the thrust of the second spring 126, and at the same time, it pulls the piston rod 1240, causing the first air inlet pipe 12411 to intake air into the first chamber 1241;

[0060] In one embodiment, a thrust spring is arranged in the first chamber 1241. The two ends of the thrust spring are respectively fixedly connected to the piston plate of the piston rod 1240 and the bottom wall of the piston cylinder 124. The end of the piston rod 1240 close to the grinding plate 122 is in contact, which can facilitate the setting of multiple piston cylinders 124 on the inner cylinder 11 to provide more gas, and at the same time, it is convenient for the grinding plate 122 to push the piston rod 1240 to slide when entering the installation groove 121.

[0061] A second intake pipe 12421 and a second outlet pipe 12422 are installed on the piston cylinder 124. Both the second intake pipe 12421 and the second outlet pipe 12422 lead to the second chamber 1242 of the piston cylinder 124. One end of the second outlet pipe 12422 away from the piston cylinder 124 faces the mesh screen 14. Both the first intake pipe 12411 and the second intake pipe 12421 lead to the middle cylinder 12. Second one-way valves are provided in both the second intake pipe 12421 and the second outlet pipe 12422;

[0062] When the folded wall surface 131 where the grinding plate 122 is located moves away from each other, when the grinding plate 122 is reset under the thrust of the second spring 126, the piston rod 1240 is reset together and squeezes the gas in the second chamber 1242. The gas is discharged through the second outlet pipe 12422 and blows towards the mesh screen 14, accelerating the material distribution on the mesh screen 14 for screening;

[0063] At the same time, both the first intake pipe 12411 and the second intake pipe 12421 lead to the middle cylinder 12. When admitting gas into the first chamber 1241 and the second chamber 1242, it can suck the gas in the area between the middle cylinder 12 and the mesh screen 14, facilitating the rapid passage of the powder on the mesh screen 14 into the middle cylinder 12, thereby accelerating the screening.

[0064] It should be understood that filter cotton is provided at one end of both the first intake pipe 12411 and the second intake pipe 12421, which can prevent powdery materials from being sucked into the piston cylinder 124.

[0065] The end of the piston cylinder 124 extends into the middle cylinder 12. Part of the piston cylinder 124 extends into the middle cylinder 12. When the mixed powder on the mesh screen 14 passes through the mesh screen 14, it can be further dispersed after being blocked by the piston cylinder 124, thereby improving the mixing effect.

[0066] The end of the outer cylinder 13 is open, and the lower end of the middle cylinder 12 is open. A bottom plate 120 is installed at the lower end of the middle cylinder 12 to block the opening at the lower end of the middle cylinder 12. After the powder mixing is completed, the bottom plate 120 is removed to facilitate discharging;

[0067] A collection box 16 is placed at the lower ends of the outer cylinder 13 and the middle cylinder 12 to facilitate collecting the discharged powder.

[0068] Refer to Figures 1 - 11 , a method for using a mixer for ceramic product production mainly includes the following steps:

[0069] S1. Pour various powders to be mixed into the inner cylinder 11, start the first motor 113 to make the spiral blades 112 stir the powders in the inner cylinder 11, and at the same time make the powders in the inner cylinder 11 overflow from the open end of the inner cylinder 11 and fall on the mesh screen 14;

[0070] S2. By driving the folded walls 131 on the outer wall of the middle cylinder 12 and the folded walls 131 on the inner wall of the outer cylinder 13 to approach or move away from each other, the powder entering the folded grinding channel 132 is dispersed, and when the folded walls 131 approach each other, a grinding effect is generated to grind the powder particles into powder with a smaller particle size.

[0071] S3. And the powder is further ground by the provided grinding plate 122. While reducing the particle size, the powder becomes rounder, with fewer edges and corners, improving the fluidity of the ground powder. After mixing is completed, it is discharged for use.

[0072] In the present invention, when the folded wall 131 on the inner wall of the outer cylinder 13 approaches and moves away from the folded wall 131 on the outer wall of the middle cylinder 12, a grinding effect will be produced on the powder. When the folded wall 131 on the inner wall of the outer cylinder 13 and the folded wall 131 on the outer wall of the middle cylinder 12 approach each other, the distance between adjacent wall surfaces on the folded wall 131 will increase and decrease. The powder at the position where the distance decreases will disperse the agglomerated powder during the process of the distance decreasing. At the same time, an upward grinding effect will be generated between the wall surfaces where the distance decreases. Subsequently, the area where the distance increases will change to where the distance decreases, and a grinding effect will be formed on the powder in this area again, grinding the powder particles into powder with a smaller particle size, thereby changing the particle size of the powder, making the particle size of the powder uniform and easier to mix evenly.

[0073] The above are only the preferred embodiments of the present invention, and there is no any form of limitation to the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to the above-mentioned technical content as equivalent embodiments with equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mixer for producing ceramic products, comprising a mounting frame (1), characterized in that: Also includes: An inner cylinder (11), a middle cylinder (12), and an outer cylinder (13) are sequentially sleeved, wherein the inner cylinder (11) is located inside the middle cylinder (12), and the middle cylinder (12) is located inside the outer cylinder (13); A stirring and lifting mechanism is located in the inner cylinder (11) and is used to transport the powder in the inner cylinder (11) toward the upper opening of the inner cylinder (11) when stirring; A mesh screen (14) is arranged between the inner cylinder (11) and the middle cylinder (12) and is used to screen the powder; A through groove (1200) is circumferentially formed on the middle cylinder (12) and is used to allow the agglomerated powder to pass through the middle cylinder (12) and enter between the middle cylinder (12) and the outer cylinder (13); The mesh screen (14) is inclined, the mesh screen (14) is located below the through slot (1200), and the middle cylinder (12) is higher than the inner cylinder (11); The folded wall (131) is respectively arranged on the inner wall of the outer cylinder (13) and the outer wall of the middle cylinder (12); a folded grinding channel (132) is formed between the folded wall (131) on the inner wall of the outer cylinder (13) and the folded wall (131) on the outer wall of the middle cylinder (12), so that when the folded wall (131) on the inner wall of the outer cylinder (13) and the folded wall (131) on the outer wall of the middle cylinder (12) are close to or away from each other, the entering agglomerated powder is dispersed and rubbed through the folded wall (131).

2. A mixer for producing ceramic products according to claim 1, characterized in that: The stirring and lifting mechanism comprises a spiral blade (112) mounted on a main shaft (111); one end of the main shaft (111) is rotatably connected to the bottom wall of the inner cylinder (11); the other end of the main shaft (111) is fixedly connected to the output end of a first motor (113) mounted on a mounting frame (1).

3. A mixer for producing ceramic products according to claim 2, characterized in that: A connecting frame (116) is mounted on the main shaft (111) via a limiting groove, the connecting frame (116) is fixedly connected to the outer cylinder (13), a second motor (118) is symmetrically fixedly connected to the mounting frame (1), an output end of the second motor (118) is fixedly connected to a first eccentric wheel (119), an annular surface (117) is provided on the connecting frame (116), the first eccentric wheel (119) corresponds to the annular surface (117), a connecting disk (114) is fixedly connected to the main shaft (111), a first spring (115) is sleeved between the connecting disk (114) and the connecting frame (116), one end of the first spring (115) is fixedly connected to the connecting disk (114), and the other end of the first spring (115) is fixedly connected to the connecting frame (116), so that when the main shaft (111) drives the outer cylinder (13) to rotate, the first eccentric wheel (119) reciprocates to push the outer cylinder (13) to move up and down.

4. A mixer for producing ceramic products according to claim 1, characterized in that: A third motor (17) is mounted on the inner cylinder (11); a second eccentric wheel (171) is fixedly connected to the output end of the third motor (17); the second eccentric wheel (171) corresponds to the bottom of the middle cylinder (12) and is used to push the middle cylinder (12) to move up and down.

5. A mixer for producing ceramic products according to claim 3 or 4, characterized in that: The folded wall (131) of the middle cylinder (12) is provided with a plurality of mounting grooves (121) on its circumference, a grinding plate (122) is slidably connected to the mounting groove (121), the grinding plate (122) and the mounting groove (121) are connected via a second spring (126), and a grinding groove (123) is provided on the grinding plate (122) so that when the folded wall (131) on the inner wall of the outer cylinder (13) and the grinding plate (122) are brought into proximity, powder in the folded grinding channel (132) is rubbed into round particles.

6. A mixer for producing ceramic products according to claim 5, characterized in that: The inner wall of the middle cylinder (12) is provided with an installation cavity, in which a piston cylinder (124) is installed, a piston rod (1240) having a piston plate at one end is slidably connected to the piston cylinder (124), a first air outlet pipe (12412) is provided in the piston rod (1240), an exhaust hole (125) is provided in the grinding plate (122), one end of the exhaust hole (125) leads to the grinding groove (123), an end of the first air outlet pipe (12412) away from the piston cylinder (124) is connected to the exhaust hole (125), a first air inlet pipe (12411) is installed on the piston cylinder (124), and is connected to the first chamber (1241) of the piston cylinder (124), and a first one-way valve is provided in the first air inlet pipe (12411) and the first air outlet pipe (12412).

7. A mixer for producing ceramic products according to claim 6, characterized in that: A second air inlet pipe (12421) and a second air outlet pipe (12422) are installed on the piston cylinder (124); the second air inlet pipe (12421) and the second air outlet pipe (12422) both lead to the second chamber (1242) of the piston cylinder (124); one end of the second air outlet pipe (12422) away from the piston cylinder (124) faces the mesh screen (14); the first air inlet pipe (12411) and the second air inlet pipe (12421) both lead to the middle cylinder (12); and a second one-way valve is provided in the second air inlet pipe (12421) and the second air outlet pipe (12422).

8. A mixer for producing ceramic products according to claim 7, characterized in that: The end of the piston cylinder (124) extends into the middle cylinder (12).

9. A method for using a mixer for producing ceramic products, comprising the mixer for producing ceramic products according to claim 5, characterized in that: The main steps include: S1, pouring a plurality of powders to be mixed into the inner cylinder (11), starting the first motor (113) to cause the spiral blade (112) to stir the powders in the inner cylinder (11), and causing the powders in the inner cylinder (11) to overflow from the opening end of the inner cylinder (11) and fall onto the mesh screen (14); S2, by driving the fold line wall (131) on the outer wall of the middle cylinder (12) and the fold line wall (131) on the inner wall of the outer cylinder (13) to approach or move away from each other, so that the powder entering the fold line grinding channel (132) is dispersed, and a grinding effect is generated when the wall surfaces of the fold line wall (131) are close to each other, so that the powder particles are ground into powder with a small particle size; S3, further grinding the powder by means of the grinding plate (122), thereby reducing the particle size and making the powder round, reducing the edges and corners, and improving the fluidity of the ground powder. After mixing, the powder is discharged for use.

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