Silica sand particle grinding and shaping equipment
By designing a silica sand particle grinding and shaping device, a grinding cylinder and steel balls driven by a rotary motor are used to rotate silica sand particles in a planetary manner, which solves the problem of silica sand shape control in the existing technology, realizes efficient spheroidization of silica sand particles and improves surface finish, thereby improving the quality of castings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YUEXIN SILICON NEW MATERIALS CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies make it difficult to control the shape of silica sand particles efficiently and at low cost, which makes artificial silica sand prone to defects during the casting process and affects the quality of castings.
A silica sand particle grinding and shaping device is used, which uses a grinding cylinder and steel balls driven by a rotary motor to rotate the silica sand particles planetarily. Through centrifugal force and friction, the particles are shaped to be close to a sphere, thereby improving the angularity factor and surface finish.
Through grinding and shaping, the silica sand particles are made to be nearly spherical, which improves the angularity factor, enhances the surface finish, and improves the product quality during the casting process.
Smart Images

Figure CN224144309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silica sand shaping technology, specifically a silica sand particle grinding and shaping device. Background Technology
[0002] Silica sand, also known as silicon dioxide or quartz sand, is a refractory granular material with quartz as the main mineral component and a particle size of 0.020mm-3.350mm. Depending on the mining and processing methods, it is divided into artificial silica sand and natural silica sand such as washed sand, scrubbed sand, and selected (flotation) sand.
[0003] Currently, domestic artificial silica sand manufacturing technology mainly focuses on ordinary crushing and screening processes, lacking efficient and low-cost shaping technology. Shaping technology is crucial for improving the angularity factor of artificial silica sand, directly affecting the roundness of the sand particles. Existing processes struggle to control the shape of the sand particles, leading to defects in the artificial silica sand during casting and impacting the quality of the castings. Utility Model Content
[0004] To address the above deficiencies, this utility model provides a silica sand particle grinding and shaping device to solve the problem of silica sand particle grinding and shaping.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A silica sand particle grinding and shaping device includes a base and a set of vertical mounting plates installed on both sides of the base. A rotating table is movably installed between the set of vertical mounting plates. A grinding and shaping mechanism is provided on the rotating table, and reciprocating rotation mechanisms are connected to both sides of the rotating table.
[0007] The grinding and shaping mechanism includes an inner cavity, a rotary motor, a rotary shaft, a support frame, a set of rotating shafts, a set of grinding cylinders, a set of mounting brackets, a set of threaded sleeves, a set of threaded rods, and a set of sealing caps. The inner cavity is located inside a rotating table. The rotary motor is installed at the bottom of the rotating table, with its rotating end movably inserted into the inner cavity. The rotary shaft is movably inserted at the center of the upper end of the rotating table. The support frame is installed on the upper end of the rotary shaft. The set of rotating shafts is movably installed on both sides of the support frame. The set of grinding cylinders is installed on the upper end of the set of rotating shafts. The set of mounting brackets is installed on both sides of the rear end of the support frame. The set of threaded sleeves is fixedly embedded in the upper end of the set of mounting brackets. The set of threaded rods is threadedly inserted into the set of threaded sleeves. The set of sealing caps is movably installed at the bottom of the set of threaded rods.
[0008] Furthermore, the reciprocating rotation mechanism includes a mounting plate, a second rotary motor, a first incomplete gear, a reciprocating sliding frame, a set of first and second racks, and a set of rotating shafts. The mounting plate is mounted on the left vertical mounting plate, the second rotary motor is horizontally mounted on the mounting plate, the first incomplete gear is mounted on the rotating end of the second rotary motor, the bottom of the reciprocating sliding frame is slidably mounted on the mounting plate, the first set of racks is mounted at both ends inside the reciprocating sliding frame and meshes with the first incomplete gear, the second rack is mounted on the upper end of the reciprocating sliding frame, and a set of rotating shafts is movably inserted into the upper end of the set of vertical mounting plates and connected to both sides of the rotating table.
[0009] Furthermore, the mounting plate has a strip groove, and the bottom of the reciprocating sliding frame is slidably mounted on the strip groove.
[0010] Furthermore, the left rotating shaft meshes with the rack and pinion two via an incomplete gear two.
[0011] Furthermore, the rotating end of the rotary motor is connected to the rotating shaft via a set of transmission gears.
[0012] Furthermore, a fixed rod is installed at the center of the inner cavity, and a fixed gear is installed at the upper end of the fixed rod. A set of rotating shafts are respectively equipped with rotating gears that mesh with the fixed gears. The rotating shafts are hollow shafts, and the upper end of the fixed rod passes through the rotating shafts and the support frame. When a set of grinding cylinders rotates, a set of rotating gears cooperates with the fixed gears and can also rotate on their own. The planetary rotation method can increase the centrifugal force and friction between materials.
[0013] Furthermore, several lifting plates are evenly installed on the inner wall of a set of grinding cylinders, which can throw the material up.
[0014] This utility model provides a silica sand particle grinding and shaping device, which has the following beneficial effects: by setting a grinding and shaping mechanism on the rotating table, the silica sand particles to be ground and shaped and an appropriate amount of steel balls are placed into a set of grinding cylinders. A rotating motor drives a set of grinding cylinders to rotate planetarily. Under the action of centrifugal force and friction, the steel balls uniformly grind and shape the silica sand particles, making their shape close to spherical, improving the angular factor, and enhancing the surface smoothness. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a silica sand particle grinding and shaping device according to the present invention.
[0016] Figure 2 This is a schematic diagram of the grinding and shaping mechanism of this utility model.
[0017] Figure 3 This is a schematic diagram of the installation of the reverse plate of this utility model.
[0018] Figure 4This is a schematic diagram of the reciprocating rotation mechanism of this utility model.
[0019] In the diagram: 1. Base; 2. Vertical mounting plate; 3. Rotating table; 4. Inner cavity; 5. Rotary motor one; 6. Rotating shaft; 7. Bearing frame; 8. Rotating shaft; 9. Grinding cylinder; 10. Mounting frame; 11. Threaded sleeve; 12. Threaded rod; 13. Sealing cover; 14. Mounting plate; 15. Rotary motor two; 16. Incomplete gear one; 17. Reciprocating sliding frame; 18. Rack one; 19. Rack two; 20. Rotating shaft; 21. Strip groove; 22. Incomplete gear two; 23. Transmission gear; 24. Fixed rod; 25. Fixed gear; 26. Rotating gear; 27. Lifting plate. Detailed Implementation
[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0021] Please see Figures 1 to 4 As shown, this application provides a silica sand particle grinding and shaping device, including a base 1 and a set of vertical mounting plates 2 installed on both sides of the base 1. A rotating table 3 is movably installed between the set of vertical mounting plates 2. A grinding and shaping mechanism is provided on the rotating table 3, and reciprocating rotation mechanisms are connected to both sides of the rotating table 3. The grinding and shaping mechanism includes an inner cavity 4, a rotary motor 5, a rotating shaft 6, a support frame 7, a set of rotating shafts 8, a set of grinding cylinders 9, a set of mounting frames 10, a set of threaded sleeves 11, a set of threaded rods 12, and a set of sealing covers 13. The inner cavity 4 is opened inside the rotating table 3, and the rotary motor 5 is installed... At the bottom of the rotating platform 3, the rotating end is movably inserted into the inner cavity 4 through a fastening bearing. The rotating shaft 6 is movably inserted into the center of the upper end of the rotating platform 3 through a fastening bearing. The support frame 7 is installed on the upper end of the rotating shaft 6. A set of rotating shafts 8 are movably installed on both sides of the support frame 7 through fastening bearings. A set of grinding cylinders 9 are installed on the upper end of the set of rotating shafts 8. A set of mounting brackets 10 are installed on both sides of the rear end of the support frame 7. A set of threaded sleeves 11 are fixedly embedded in the upper end of the set of mounting brackets 10. A set of threaded rods 12 are threadedly inserted into the set of threaded sleeves 11. A set of sealing caps 13 are movably installed at the bottom of the set of threaded rods 12.
[0022] In this embodiment, during use, the user rotates a set of threaded rods 12 counterclockwise to open a set of sealing caps 13, and puts the silica sand particles to be ground and shaped, along with an appropriate amount of steel balls, into a set of grinding cylinders 9. Then, the sealing caps 13 are locked, and the rotating motor 5 drives the rotating shaft 6 to rotate, which in turn drives the set of grinding cylinders 9 to rotate through the support frame 7. Under the action of centrifugal force and friction, the steel balls uniformly grind and shape the silica sand particles, making their shape close to spherical, improving the angularity factor, and enhancing the surface finish.
[0023] In some embodiments, the reciprocating rotation mechanism includes a mounting plate 14, a second rotary motor 15, a first incomplete gear 16, a reciprocating sliding frame 17, a set of first racks 18, a second rack 19, and a set of rotating shafts 20. The mounting plate 14 is mounted on the left vertical mounting plate 2, the second rotary motor 15 is horizontally mounted on the mounting plate 14, the first incomplete gear 16 is mounted on the rotating end of the second rotary motor 15, the bottom of the reciprocating sliding frame 17 is slidably mounted on the mounting plate 14, a set of first racks 18 is mounted at both ends of the reciprocating sliding frame 17 and meshes with the first incomplete gear 16 respectively, the second rack 19 is mounted on the upper end of the reciprocating sliding frame 17, and a set of rotating shafts 20 is movably inserted into the upper end of a set of vertical mounting plates 2 through fastening bearings and is connected to both sides of the rotating table 3.
[0024] During grinding and shaping, the rotary motor 15 drives the reciprocating sliding frame 17 to move back and forth on the mounting plate 14 via the incomplete gear 16, and drives a set of rotating shafts 20 via the rack 19, causing the rotating table 3 to deflect back and forth, which can effectively grind and shape the silica sand particles in the set of grinding cylinders 9. The reciprocating rotation angle of the rotating table 3 is ±135°. When unloading, the set of grinding cylinders 9 deflects to the lowest point at the front end and opens a set of sealing covers 13 to facilitate unloading.
[0025] In some embodiments, the mounting plate 14 has a strip groove 21, and the bottom of the reciprocating sliding frame 17 is slidably mounted on the strip groove 21 to facilitate the reciprocating movement of the reciprocating sliding frame 17.
[0026] In some embodiments, the left rotating shaft 20 meshes with the rack 19 via an incomplete gear 22, which facilitates the reciprocating rotation of the rotating table 3.
[0027] In some embodiments, the rotating end of the rotary motor 5 is connected to the rotating shaft 6 via a set of transmission gears 23 to drive the rotating shaft 6.
[0028] In some embodiments, a fixed rod 24 is installed at the center of the inner cavity 4, and a fixed gear 25 is installed at the upper end of the fixed rod 24. A set of rotating shafts 8 are respectively equipped with rotating gears 26 that mesh with the fixed gears 25. The rotating shaft 6 is a hollow shaft. The upper end of the fixed rod 24 passes through the rotating shaft 6 and the support frame 7 respectively. When a set of grinding cylinders 9 rotates, a set of rotating gears 26 cooperates with the fixed gears 25 and can also rotate on their own. The planetary rotation method can increase the centrifugal force and friction between materials.
[0029] In some embodiments, a plurality of lifting plates 27 are evenly installed on the inner wall of a set of grinding cylinders 9, and the lifting plates 27 can throw the material up.
[0030] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.
Claims
1. A silicon sand particle grinding and shaping device, comprising a base (1) and a set of vertical mounting plates (2) mounted on both sides of the base (1), a rotating table (3) movably mounted between the set of vertical mounting plates (2), characterized in that, The rotating table (3) is equipped with a grinding and shaping mechanism, and reciprocating rotation mechanisms are connected to both sides of the rotating table (3); The grinding and shaping mechanism includes an inner cavity (4), a rotary motor (5), a rotating shaft (6), a support frame (7), a set of rotating shafts (8), a set of grinding cylinders (9), a set of mounting brackets (10), a set of threaded sleeves (11), a set of threaded rods (12), and a set of sealing caps (13). The inner cavity (4) is located inside the rotating table (3). The rotary motor (5) is installed at the bottom of the rotating table (3), and its rotating end is movably inserted into the inner cavity (4). The rotating shaft (6) is movably inserted into the upper end of the rotating table (3). At the center, the support frame (7) is installed on the upper end of the rotating shaft (6), a set of rotating shafts (8) are movably installed on both sides of the support frame (7), a set of grinding cylinders (9) are installed on the upper end of the set of rotating shafts (8), a set of mounting brackets (10) are installed on both sides of the rear end of the support frame (7), a set of threaded sleeves (11) are fixedly embedded in the upper end of the set of mounting brackets (10), a set of threaded rods (12) are threadedly inserted into the set of threaded sleeves (11), and a set of sealing caps (13) are movably installed at the bottom of the set of threaded rods (12).
2. A silicon sand particle lapping and shaping apparatus as claimed in claim 1, wherein, The reciprocating rotation mechanism includes a mounting plate (14), a second rotary motor (15), an incomplete gear (16), a reciprocating sliding frame (17), a set of racks (18), a second rack (19), and a set of rotating shafts (20). The mounting plate (14) is mounted on the left vertical mounting plate (2). The second rotary motor (15) is horizontally mounted on the mounting plate (14). The first incomplete gear (16) is mounted on the rotating end of the second rotary motor (15). The bottom of the reciprocating sliding frame (17) is slidably mounted on the mounting plate (14). The first set of racks (18) is mounted at both ends of the reciprocating sliding frame (17) and meshes with the first incomplete gear (16) respectively. The second rack (19) is mounted on the upper end of the reciprocating sliding frame (17). A set of rotating shafts (20) is movably inserted into the upper end of a set of vertical mounting plates (2) and connected to both sides of the rotating table (3).
3. A silicon sand particle lapping and shaping apparatus as claimed in claim 2, wherein, The mounting plate (14) has a strip groove (21), and the bottom of the reciprocating sliding frame (17) is slidably mounted on the strip groove (21).
4. A silicon sand particle lapping and shaping apparatus as claimed in claim 2, wherein, The left rotating shaft (20) meshes with the rack and pinion two (19) through the incomplete gear two (22).
5. A silicon sand particle lapping and shaping apparatus as claimed in claim 1, wherein, The rotating end of the rotary motor (5) is connected to the rotating shaft (6) by a set of transmission gears (23).
6. A silicon sand particle lapping and shaping apparatus as claimed in claim 1, wherein, A fixed rod (24) is installed at the center of the inner cavity (4), and a fixed gear (25) is installed at the upper end of the fixed rod (24). A set of rotating shafts (8) are respectively equipped with rotating gears (26) that mesh with the fixed gears (25).
7. A silicon sand particle lapping and shaping apparatus as claimed in claim 1, wherein, A number of lifting plates (27) are evenly installed on the inner wall of a set of grinding cylinders (9).