Raw material grinding device for black glaze ceramic product preparation

Abstract

The invention relates to a raw material grinding device for black glaze ceramic product preparation, the raw material grinding device comprises a plurality of supporting legs and a barrel arranged at the upper ends of the supporting legs, a transmission box is arranged in the barrel, a rotating shaft penetrating through the transmission box is rotatably connected in the transmission box, and a first motor for driving the rotating shaft to rotate is arranged outside the barrel; the fixed cone is arranged in the cylinder body, a conical cavity penetrating through the upper end and the lower end of the fixed cone is formed in the fixed cone, and a feeding hopper for pouring materials into the conical cavity is arranged at the upper end of the fixed cone; the movable cone is located in the conical cavity of the fixed cone, a blind hole is formed in the lower end of the movable cone, the upper end of the rotating shaft is hinged to the inner top wall of the blind hole through a spherical hinge, and a cam located in the blind hole is arranged on the rotating shaft; by combining rough grinding and fine grinding, the energy consumption and the use intensity of the device are effectively reduced, the grinding efficiency is improved, the service life of the device is prolonged, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic processing, in particular to a raw material grinding device for preparing black glaze ceramic products. Background Art

[0002] Black-glazed porcelain is one of the traditional porcelain glaze colors, which appeared in the Eastern Han Dynasty. The glaze surface is black or dark brown. The main coloring agent of black glaze is iron oxide and a small or trace amount of oxidizing colorants such as manganese, cobalt, copper, and chromium. The proportion of iron oxide in the glaze of the commonly seen reddish brown or dark brown porcelain is about 8%. If the glaze layer is thickened to 1.5 mm, the fired glaze color will be pure black.

[0003] The raw materials of black-glazed ceramics mainly include natural soil with high iron content, lime glaze and lime-alkali glaze. When preparing black-glazed ceramic products, grinding equipment is needed to grind the raw materials to a predetermined fineness. Most existing grinding devices are single-stage grinding. Single-stage grinding devices are prone to uneven grinding of lumps in the material during grinding, and it is difficult to ensure fineness and distribution. In addition, single-stage grinding devices require greater mechanical power during operation, high grinding energy consumption, and high use intensity, which reduces the service life of the device and increases production costs.

[0004] For example, a Chinese patent with patent publication number CN221452837U discloses a grinding device, including a grinding cylinder and a grinding liner, wherein the grinding liner is fixedly installed on the inner wall of the grinding cylinder, and the grinding liner is a cylindrical structure, and an inclined surface is provided on the inner wall of the grinding liner. When grinding, raw materials are put into the grinding cylinder from a feed hopper, and the raw materials enter between the conical grinding head and the inclined surface, and the raw materials are ground by the lifting and rotating of the conical grinding head and the cylindrical grinding head. There are defects such as uneven grinding, high grinding energy consumption, high usage intensity, low service life, and high production cost. Summary of the invention

[0005] The embodiment of the present invention provides a raw material grinding device for preparing black-glazed ceramic products, which can solve the problems of uneven raw material grinding, high grinding energy consumption, high usage intensity, short service life and high production cost existing in the prior art.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A raw material grinding device for preparing black glaze ceramic products, comprising a plurality of supporting legs and a cylinder arranged at the upper ends of the supporting legs, a transmission box is arranged inside the cylinder, a rotating shaft penetrating the transmission box is rotatably connected inside the transmission box, and a first motor driving the rotating shaft to rotate is arranged outside the cylinder;

[0007] It also includes a fixed cone, which is arranged inside the cylinder, and has a conical cavity running through the upper and lower ends thereof, and a feed hopper for pouring materials into the conical cavity is arranged at the upper end of the fixed cone;

[0008] It also includes a moving cone located inside the conical cavity of the fixed cone, a blind hole is opened at the lower end of the moving cone, the upper end of the rotating shaft is hinged to the inner top wall of the blind hole through a spherical hinge, and a cam located inside the blind hole is arranged on the rotating shaft;

[0009] It also includes a grinding box arranged directly below the cylinder, a material receiving hopper is arranged at the upper end of the grinding box, a discharge pipe with a discharge valve is arranged at the lower end of the grinding box, the lower end of the rotating shaft passes through the material receiving hopper and extends into the interior of the grinding box, a spiral blade for lifting materials is arranged at the lower end of the rotating shaft, and the interior of the grinding box is filled with grinding media.

[0010] Preferably, the fixed cone is fixedly connected to the cylinder by threads, an outer gear ring is provided at the upper edge of the fixed cone, a second motor is provided inside the side wall of the cylinder, and a gear meshing with the outer gear ring is provided at the output end of the second motor.

[0011] Preferably, a screen is elastically connected to the interior of the grinding box, and the screen is located below the spiral blade.

[0012] Preferably, a guide rod is provided at the lower part of the interior of the grinding box, the screen is slidably connected to the guide rod, a spring is sleeved on the guide rod, and the spring is located below the screen.

[0013] Preferably, the lower end of the rotating shaft passes through the screen and is provided with a scraper extending into the inside of the discharge pipe, and the scraper is closely attached to the inner surface of the discharge pipe.

[0014] Preferably, a driving pulley is provided at the output end of the first motor, a first driven pulley is rotatably connected to the outer wall of the cylinder, a first belt is transmission-connected between the driving pulley and the first driven pulley, a driving bevel gear located inside the transmission box is coaxially provided with the first driven pulley, and a driven bevel gear meshing with the driving bevel gear is provided on the rotating shaft.

[0015] Preferably, the driving pulley is a double-groove pulley, an "L"-shaped mounting plate is provided on the upper end of the side wall of the cylinder, a plurality of elastic plates are provided on the horizontal section of the "L"-shaped mounting plate, a feeding trough is provided on the upper end of the elastic plate, a second driven pulley is rotatably connected to the vertical section of the "L"-shaped mounting plate, a second belt is transmission-connected between the driving pulley and the second driven pulley, an eccentric wheel is coaxially provided on the second driven pulley, a ring sleeve is rotatably connected to the outer surface of the eccentric wheel, and a connecting rod hinged to the feeding trough is provided on the ring sleeve.

[0016] Preferably, a feeding pipe pointing vertically downward is provided at the discharge end of the feeding trough.

[0017] Compared with the prior art, the present invention adopts the coordinated arrangement of supporting legs, a cylinder, a transmission box, a rotating shaft, a first motor, a fixed cone, a conical cavity, a feed hopper, a moving cone, a blind hole, a cam, a grinding box, a receiving hopper, a discharging pipe, a spiral blade and a grinding medium. The material enters the gap between the fixed cone and the moving cone from the feed hopper, the first motor drives the rotating shaft to rotate, and the rotating shaft drives the cam and the spiral blade to rotate synchronously. The cam drives the moving cone to swing eccentrically around the spherical hinge through the blind hole, continuously squeezing the material falling between the fixed cone and the moving cone, and initially crushing the material into smaller particles. After the small particles fall, they fall into the grinding box through the receiving hopper. The spiral blades rotate to continuously lift the small particles and the grinding medium in the grinding box. The small particles and the grinding medium rise to a high point and then fall, generating strong impact force, extrusion force and shear force, thereby further grinding the small particles into fine powder that meets the production requirements of black glaze ceramic products, combining coarse grinding with fine grinding, effectively reducing energy consumption and device usage intensity, improving grinding efficiency, extending the service life of the device, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the rear cross-sectional structure of the cylinder of the present invention;

[0020] Figure 3 It is a schematic diagram of the cam structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the front and cross-sectional structure of the grinding box of the present invention;

[0022] Figure 5 This is a schematic diagram of the main cross-sectional structure of the feed trough of the present invention;

[0023] Figure 6 For the present invention Figure 1 A schematic diagram of the enlarged structure in the middle.

[0024] In the figure: 1. support leg; 2. cylinder; 3. transmission box; 4. first motor; 5. feed hopper; 6. rotating shaft; 7. fixed cone; 8. moving cone; 9. blind hole; 10. cam; 11. grinding box; 12. receiving hopper; 13. discharge pipe; 14. spiral blade; 15. outer gear ring; 16. second motor; 17. gear; 18. screen; 19. guide rod; 20. spring; 21. scraper; 22. driving pulley; 23. first driven pulley; 24. driving bevel gear; 25. driven bevel gear; 26. "L" shaped mounting plate; 27. elastic plate; 28. feeding trough; 29. ​​second driven pulley; 30. first belt; 31. second belt; 32. eccentric wheel; 33. ring sleeve; 34. connecting rod; 35. feeding pipe; 36. electromagnet. DETAILED DESCRIPTION

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figure 1 to Figure 6 As shown, a raw material grinding device for preparing black glaze ceramic products comprises a plurality of supporting legs 1 and a cylinder 2 arranged at the upper end of the supporting legs 1, a transmission box 3 is arranged inside the cylinder 2, a rotating shaft 6 penetrating the transmission box 3 is rotatably connected inside the transmission box 3, and a first motor 4 driving the rotating shaft 6 to rotate is arranged outside the cylinder 2;

[0027] It also includes a fixed cone 7, which is arranged inside the cylinder 2, and has a conical cavity running through the upper and lower ends thereof, and a feed hopper 5 for pouring materials into the conical cavity is arranged at the upper end of the fixed cone 7;

[0028] It also includes a moving cone 8 located inside the conical cavity of the fixed cone 7, a blind hole 9 is opened at the lower end of the moving cone 8, the upper end of the rotating shaft 6 is hinged to the inner top wall of the blind hole 9 through a spherical hinge, and a cam 10 located inside the blind hole 9 is arranged on the rotating shaft 6;

[0029] It also includes a grinding box 11 arranged directly below the cylinder 2, a material receiving hopper 12 is arranged at the upper end of the grinding box 11, a material discharge pipe 13 with a material discharge valve is arranged at the lower end of the grinding box 11, the lower end of the rotating shaft 6 passes through the material receiving hopper 12 and extends into the interior of the grinding box 11, a spiral blade 14 for material lifting is arranged at the lower end of the rotating shaft 6, and the interior of the grinding box 11 is filled with grinding media.

[0030] During specific use, the material enters the gap between the fixed cone 7 and the moving cone 8 from the feed hopper 5, the first motor 4 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the cam 10 and the spiral blade 14 to rotate synchronously, the cam 10 drives the moving cone 8 to swing eccentrically around the spherical hinge through the blind hole 9, and continuously squeezes the material falling between the fixed cone 7 and the moving cone 8, and initially crushes the material into smaller particles. After the small particles fall, they fall into the grinding box 11 through the receiving hopper 12. The spiral blade 14 rotates and continuously lifts the small particles and grinding media in the grinding box 11. The small particles and grinding media rise to a high point and then fall, generating strong impact force, extrusion force and shear force. After the small particles completely fall into the grinding box 11, they continue to be ground in the grinding box 11 for 20 to 30 minutes until the small particles are further ground into fine powder that meets the production requirements of black glaze ceramic products. After the grinding is completed, the discharge valve is opened and the raw material powder is discharged from the discharge pipe 13.

[0031] In order to adjust the coarse grinding particle size of the raw material, preferably, the fixed cone 7 is fixedly connected to the cylinder 2 by a thread, an outer gear ring 15 is provided at the upper edge of the fixed cone 7, a second motor 16 is provided inside the side wall of the cylinder 2, and a gear 17 meshing with the outer gear ring 15 is provided at the output end of the second motor 16.

[0032] When the rough grinding particle size of the raw material is required to be coarser, the second motor 16 drives the outer gear ring 15 to rotate through the gear 17, and the outer gear ring 15 drives the fixed cone 7 to rise, so that the gap between the fixed cone 7 and the moving cone 8 becomes larger, thereby increasing the material feeding speed and the grinding efficiency; when the rough grinding particle size of the raw material is required to be finer, the second motor 16 drives the outer gear ring 15 to rotate in the opposite direction through the gear 17, and the outer gear ring 15 drives the fixed cone 7 to descend, so that the gap between the fixed cone 7 and the moving cone 8 becomes smaller, thereby reducing the grinding difficulty and energy consumption of subsequent fine grinding and reducing production costs.

[0033] In order to achieve the purpose of making the raw material particles after fine grinding meet the particle size requirements, preferably, the grinding box 11 is elastically connected to the inside with a screen 18, and the screen 18 is located below the spiral blade 14.

[0034] A guide rod 19 is provided at the lower part of the interior of the grinding box 11, and the screen 18 is slidably connected to the guide rod 19. A spring 20 is sleeved on the guide rod 19, and the spring 20 is located below the screen 18. The lower end of the rotating shaft 6 passes through the screen 18 and is provided with a scraper 21 extending into the inside of the discharge pipe 13. The scraper 21 is tightly attached to the inner surface of the discharge pipe 13.

[0035] During the fine grinding process, the material and the grinding medium rise to a high point and then fall down. The falling material and grinding medium fall on the screen 18, causing the spring 20 to drive the screen 18 to vibrate up and down. The raw material particles that meet the particle size requirements will pass through the screen 18 and fall on the lower part of the grinding box 11, while the raw material particles that do not meet the particle size requirements will be lifted up by the spiral blades 14 again for secondary grinding. When discharging, the discharge valve is opened and the raw material powder is discharged from the discharge pipe 13. In this process, the rotating shaft 6 drives the scraper 21 to scrape off the raw material powder accumulated on the wall of the discharge pipe 13, thereby improving the discharge effect and effectively avoiding blockage of the discharge pipe 13.

[0036] In order to achieve the purpose of reducing grinding energy consumption and device usage intensity, preferably, a driving pulley 22 is provided at the output end of the first motor 4, a first driven pulley 23 is rotatably connected to the outer wall of the cylinder 2, a first belt 30 is transmission-connected between the driving pulley 22 and the first driven pulley 23, the first driven pulley 23 is coaxially provided with a driving bevel gear 24 located inside the transmission box 3, and a driven bevel gear 25 meshing with the driving bevel gear 24 is provided on the rotating shaft 6.

[0037] The driving pulley 22 is a double-groove pulley. An "L"-shaped mounting plate 26 is provided on the upper end of the side wall of the cylinder 2. A plurality of elastic plates 27 are provided on the horizontal section of the "L"-shaped mounting plate 26. A feeding trough 28 is provided on the upper end of the elastic plate 27. A second driven pulley 29 is rotatably connected to the vertical section of the "L"-shaped mounting plate 26. A second belt 31 is transmission-connected between the driving pulley 22 and the second driven pulley 29. An eccentric wheel 32 is coaxially provided on the second driven pulley 29. A ring sleeve 33 is rotatably connected to the outer surface of the eccentric wheel 32. A connecting rod 34 hinged to the feeding trough 28 is provided on the ring sleeve 33.

[0038] When in use, the raw material to be ground is placed in the feeding trough 28, the first motor 4 drives the driving pulley 22 to rotate, the driving pulley 22 drives the first driven pulley 23 to rotate through the first belt 30, the driving pulley 22 drives the second driven pulley 29 to rotate through the second belt 31, the second driven pulley 29 drives the second driven pulley 29 to rotate through the second belt 31, the second driven pulley 29 drives the eccentric wheel 32 to rotate eccentrically, the eccentric wheel 32 drives the feeding trough 28 to vibrate through the ring sleeve 33 and the connecting rod 34, and the raw material is evenly and continuously fed into the feeding hopper 5, the raw material entering the device from the feeding hopper 5 falls between the fixed cone 7 and the moving cone 8, the first driven pulley 23 drives the driving bevel gear 24 to rotate The active bevel gear 24 drives the rotating shaft 6 to rotate through the driven bevel gear 25, and the rotating shaft 6 drives the cam 10 and the spiral blade 14 to rotate synchronously. The cam 10 drives the moving cone 8 to swing eccentrically around the spherical hinge through the blind hole 9, continuously squeezing the raw materials falling between the fixed cone 7 and the moving cone 8, and initially crushing the raw materials into smaller particles. After the small particles of raw materials fall, they fall into the grinding box 11 through the receiving hopper 12. The spiral blade 14 rotates to continuously lift the small particles of raw materials and grinding media in the grinding box 11. The small particles of raw materials and grinding media rise to a high point and then fall, generating strong impact force, extrusion force and shear force, thereby further grinding the small particles of raw materials into fine powder that meets the production requirements of black glaze ceramic products.

[0039] Preferably, a feeding pipe 35 pointing vertically downward is provided at the discharge end of the feeding trough 28 .

[0040] Preferably, an electromagnet 36 is provided inside the grinding box 11, and the electromagnet 36 is located below the screen 18. When the electromagnet 36 is energized, it can absorb magnetic impurities in the black glaze ceramic powder raw material. After the black glaze ceramic powder raw material is completely discharged from the grinding box 11, the electromagnet 36 is powered off to make the electromagnet 36 lose its magnetism, so that the magnetic impurities are discharged from the discharge pipe 13, thereby achieving the purpose of impurity removal and improving the purity of the black glaze ceramic powder raw material.

[0041] Compared with the prior art, the present invention is provided with the support leg 1, the cylinder 2, the transmission box 3, the rotating shaft 6, the first motor 4, the fixed cone 7, the conical cavity, the feed hopper 5, the moving cone 8, the blind hole 9, the cam 10, the grinding box 11, the receiving hopper 12, the discharge pipe 13, the spiral blade 14 and the grinding medium. The material enters the gap between the fixed cone 7 and the moving cone 8 from the feed hopper 5, the first motor 4 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the cam 10 and the spiral blade 14 to rotate synchronously, the cam 10 drives the moving cone 8 to swing eccentrically around the spherical hinge through the blind hole 9, and continuously squeezes and falls on the fixed cone. The material between 7 and the moving cone 8 is initially crushed into smaller particles. After the small particles fall down, they fall into the grinding box 11 through the receiving hopper 12. The spiral blades 14 rotate to continuously lift the small particles and grinding media in the grinding box 11. The small particles and grinding media rise to a high point and then fall down, generating strong impact force, extrusion force and shear force, thereby further grinding the small particles into fine powder that meets the production requirements of black glaze ceramic products. The coarse grinding is combined with the fine grinding, which effectively reduces the energy consumption and the use intensity of the device, improves the grinding efficiency, prolongs the service life of the device, and reduces the production cost.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material grinding device for preparing black glaze ceramic products, comprising a plurality of support legs (1) and a cylinder (2) arranged at the upper end of the support legs (1), characterized in that: A transmission box (3) is arranged inside the cylinder (2), a rotating shaft (6) penetrating the transmission box (3) is rotatably connected inside the transmission box (3), and a first motor (4) for driving the rotating shaft (6) to rotate is arranged outside the cylinder (2); It also comprises a fixed cone (7), the fixed cone (7) being arranged inside the cylinder (2), the fixed cone (7) being provided with a conical cavity penetrating the upper and lower ends thereof, and a feed hopper (5) for pouring materials into the conical cavity being arranged at the upper end of the fixed cone (7); It also includes a moving cone (8) located inside the conical cavity of the fixed cone (7), a blind hole (9) is provided at the lower end of the moving cone (8), the upper end of the rotating shaft (6) is hinged to the inner top wall of the blind hole (9) through a spherical hinge, and a cam (10) located inside the blind hole (9) is provided on the rotating shaft (6); It also comprises a grinding box (11) arranged directly below the cylinder (2); a receiving hopper (12) is arranged at the upper end of the grinding box (11); a discharge pipe (13) having a discharge valve is arranged at the lower end of the grinding box (11); the lower end of the rotating shaft (6) passes through the receiving hopper (12) and extends into the interior of the grinding box (11); a spiral blade (14) for lifting materials is arranged at the lower end of the rotating shaft (6); and the interior of the grinding box (11) is filled with grinding media.

2. The raw material grinding device for preparing black glaze ceramic products according to claim 1, characterized in that: The fixed cone (7) is fixedly connected to the cylinder (2) via a thread, an outer gear ring (15) is provided at the upper edge of the fixed cone (7), a second motor (16) is provided inside the side wall of the cylinder (2), and a gear (17) meshing with the outer gear ring (15) is provided at the output end of the second motor (16).

3. The raw material grinding device for preparing black glaze ceramic products according to claim 1 or 2, characterized in that: A screen (18) is elastically connected to the interior of the grinding box (11), and the screen (18) is located below the spiral blade (14).

4. The raw material grinding device for preparing black glaze ceramic products according to claim 3 is characterized in that: A guide rod (19) is provided at the lower part of the interior of the grinding box (11), and the screen (18) is slidably connected to the guide rod (19). A spring (20) is sleeved on the guide rod (19), and the spring (20) is located below the screen (18).

5. The raw material grinding device for preparing black glaze ceramic products according to claim 4, characterized in that: The lower end of the rotating shaft (6) passes through the screen (18) and is provided with a scraper (21) extending into the inside of the discharge pipe (13), and the scraper (21) is closely attached to the inner surface of the discharge pipe (13).

6. The raw material grinding device for preparing black glaze ceramic products according to claim 5, characterized in that: The output end of the first motor (4) is provided with a driving pulley (22), the outer wall of the cylinder (2) is rotatably connected with a first driven pulley (23), a first belt (30) is transmission-connected between the driving pulley (22) and the first driven pulley (23), the first driven pulley (23) is coaxially provided with a driving bevel gear (24) located inside the transmission box (3), and the rotating shaft (6) is provided with a driven bevel gear (25) meshing with the driving bevel gear (24).

7. The raw material grinding device for preparing black glaze ceramic products according to claim 6, characterized in that: The driving pulley (22) is a double-groove pulley, an "L"-shaped mounting plate (26) is arranged at the upper end of the side wall of the cylinder (2), a plurality of elastic plates (27) are arranged on the horizontal section of the "L"-shaped mounting plate (26), a feeding trough (28) is arranged at the upper end of the elastic plate (27), a second driven pulley (29) is rotatably connected to the vertical section of the "L"-shaped mounting plate (26), a second belt (31) is transmission-connected between the driving pulley (22) and the second driven pulley (29), an eccentric wheel (32) is coaxially arranged on the second driven pulley (29), an annular sleeve (33) is rotatably connected to the outer surface of the eccentric wheel (32), and a connecting rod (34) hinged to the feeding trough (28) is arranged on the annular sleeve (33).

8. The raw material grinding device for preparing black glaze ceramic products according to claim 7, characterized in that: A feeding pipe (35) pointing vertically downward is provided at the discharge end of the feeding trough (28).

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