Efficient grinding machine for solid powder

Abstract

The utility model discloses an efficient solid powder grinding machine. A filter plate is arranged in a device body, a grinding roller is fixed on a rotating shaft rotationally connected with the filter plate, the grinding roller is matched with a smashing mechanism, and the rotating shaft is provided with a cleaning mechanism. The smashing mechanism is matched with a gear section of a roller on the outer edge of a grinding roller through a rack section on an annular groove in the inner wall of a device body, so that the roller rotates to enhance grinding. The cleaning mechanism cleans impurities in the annular groove through a connecting rod and bristles. The motor drives the rotating shaft, the multiple grinding units cooperate, and the diameters of filter holes of the filter plate gradually change and are radially distributed. The grinding machine effectively solves the problems of insufficient grinding force, impurity attachment and uneven particle size of traditional equipment, can greatly improve the grinding efficiency and produce high-quality powder with uniform particle size, is widely applicable to industries such as chemical engineering, pharmacy and food, and has various alternative structures to meet different requirements.

Description

Technical Field

[0001] This utility model relates to the field of powder grinding technology, and in particular to a high-efficiency grinding machine for solid powders. Background Technology

[0002] Solid powder grinding mills are widely used in industries such as chemical, pharmaceutical, and food processing. Their main function is to grind solid materials into fine powders through mechanical action to meet the particle size requirements of subsequent production processes. In practical applications, they can process lumpy or granular raw materials into uniform and fine powders, allowing these powders to better participate in chemical reactions, mixing, and other operations.

[0003] Traditional powder grinders typically rely on a single grinding component to process materials during the grinding process, resulting in limited grinding force and insufficient material pulverization, leading to low grinding efficiency. Furthermore, after prolonged use, impurities easily accumulate in the grinding mechanism, and there is a lack of effective cleaning methods. These impurities not only affect the normal operation of the equipment but may also mix into the material, reducing product quality. Additionally, traditional grinders use a relatively simple material screening method, making it difficult to guarantee the uniformity of the final powder particle size, affecting the stability and applicability of the product.

[0004] In the patent "A Traditional Chinese Medicine Powder Pulverizer" (202420448642.7), the equipment uses a telescopic rod, a return spring, and an eccentric disc to enable the grinding head to perform a reciprocating motion, thereby compressing the traditional Chinese medicine and improving grinding efficiency. However, this solution still has certain shortcomings. Relying solely on the reciprocating compression and grinding of the grinding head results in a relatively simple pulverization method, which cannot achieve ideal pulverization results for some hard and difficult-to-pulverize materials. Furthermore, the equipment lacks a cleaning design for the pulverizing mechanism itself. During long-term processing of traditional Chinese medicine, the pulverizing components are prone to accumulating medicinal residue and other impurities, which not only affects the continuous and stable operation of the equipment but may also affect the quality of the subsequent traditional Chinese medicine powder. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency grinding machine for solid powders, so as to solve the problems of insufficient grinding force, easy adhesion of impurities to the pulverizing mechanism and inconvenient cleaning, and difficulty in ensuring the uniformity of powder particle size in traditional powder grinding machines.

[0006] This utility model is achieved through the following technical solution:

[0007] A high-efficiency grinding mill for solid powder includes a device body and a filter plate disposed inside the device body, and a grinding roller disposed on the filter plate. A rotating shaft is rotatably disposed on the filter plate, and the grinding roller is fixed on the rotating shaft. The grinding roller is provided with a crushing mechanism for enhancing the grinding force. When the grinding roller rotates around the rotating shaft on the filter plate, it can drive the crushing mechanism to further crush the material. The rotating shaft is also provided with a cleaning mechanism for scraping off impurities attached to the crushing mechanism.

[0008] Preferably, the pulverizing mechanism includes an annular groove on the inner wall of the device body, a rack segment on the annular groove, a roller on the outer edge of the grinding roller, one end of the roller being rotatably connected to the grinding roller, and the other end of the roller being provided with a gear segment that matches the rack segment. When the grinding roller rotates around the rotating shaft, the roller can rotate on the outer edge of the grinding roller through the cooperation of the rack segment and the gear segment. The rotating shaft is provided with a drive unit for driving the rotating shaft to rotate.

[0009] Preferably, the cleaning mechanism includes a connecting rod disposed on the rotating shaft, one end of the connecting rod being fixedly connected to the rotating shaft, and the other end of the connecting rod being provided with bristles for cleaning impurities in the annular groove; in the top-to-bottom direction, the projection of the connecting rod and the projection of the grinding roller are not on the same straight line.

[0010] Preferably, the drive unit includes a motor mounted on the device body, and the power output end of the motor is connected to the end of the rotating shaft.

[0011] Preferably, the outer edge of the roller is provided with a plurality of protrusions evenly distributed.

[0012] Preferably, the connecting rod, brush bristles, grinding roller, drum, gear segment, annular groove and rack segment constitute the first grinding unit, and a second grinding unit is also provided in the device body in the axial direction of the rotating shaft.

[0013] Preferably, the diameter of the filter pores in the filter plate gradually decreases along the falling direction of the material.

[0014] Preferably, the filter pores are arranged in a radial array on the filter plate.

[0015] Preferably, the length of the bristles in the vertical direction matches the height of the annular groove.

[0016] Preferably, the grinding roller is arranged parallel to the filter plate.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects: The rotating shaft and grinding roller fixed on the filter plate of this utility model not only grind the material themselves when the grinding roller rotates around the shaft, but also drive the crushing mechanism to further crush the material. In the crushing mechanism, the rack segment on the annular groove of the inner wall of the device body cooperates with the gear segment on the outer edge of the grinding roller, causing the roller to rotate on the outer edge of the grinding roller. The protrusions on the outer edge of the roller greatly enhance the grinding force on the material, improving grinding efficiency. Simultaneously, the cleaning mechanism on the rotating shaft has one end of its connecting rod fixed to the rotating shaft, while the bristles at the other end effectively scrape away impurities in the annular groove, preventing impurities from affecting equipment operation and material quality, ensuring the final product is a uniformly sized, high-quality solid powder. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the main body of the device of this utility model, intended to show the positions of the filter plate, annular groove, and rack segment;

[0021] Figure 3 This is a schematic diagram of the structure of the grinding roller and drum of this utility model;

[0022] Figure 4 for Figure 1 Enlarged view of point A.

[0023] The reference numerals in the attached figures represent:

[0024] 10. Device body; 11. Feed inlet; 12. Annular groove; 13. Rack section; 14. Filter plate; 141. Filter holes.

[0025] 20. Motor, 21. Shaft, 22. Connecting rod, 23. Brush bristles, 24. Grinding roller, 25. Roller, 251. Protrusion, 252. Gear segment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Example 1:

[0028] like Figures 1 to 4 As shown, a high-efficiency grinding mill for solid powder includes a device body 10 and a filter plate 14 disposed inside the device body 10. It also includes a grinding roller 24 disposed on the filter plate 14. A rotating shaft 21 is rotatably disposed on the filter plate 14, and the grinding roller 24 is fixed on the rotating shaft 21. The grinding roller 24 is provided with a crushing mechanism for enhancing the grinding force. When the grinding roller 24 rotates around the rotating shaft 21 on the filter plate 14, it can drive the crushing mechanism to further crush the material. The rotating shaft 21 is also provided with a cleaning mechanism for scraping off impurities attached to the crushing mechanism.

[0029] This solution aims to address the problems of insufficient grinding force, easy adhesion of impurities to the pulverizing mechanism, and difficulty in ensuring uniform particle size in traditional powder grinders. Inside the main body 10 of the device, in addition to the already described filter plate 14, rotating shaft 21, grinding roller 24, pulverizing mechanism, and cleaning mechanism, a stable support frame is required to support the components and ensure the overall stability of the device. During operation, the solid material to be ground is placed on the filter plate 14, and the motor 20 starts, driving the rotating shaft 21 to rotate, which in turn drives the grinding roller 24 to rotate around the shaft 21 on the filter plate 14. During this process, the grinding roller 24 itself performs initial grinding of the material. Simultaneously, because the rack segment 13 on the annular groove 12 on the inner wall of the main body 10 cooperates with the gear segment 252 on the outer edge of the roller 25 of the grinding roller 24, the roller 25 rotates on the outer edge of the grinding roller 24. The protrusions 251 on the outer edge of the roller 25 further enhance the grinding force on the material, greatly improving the grinding efficiency. The connecting rod 22 of the cleaning mechanism rotates synchronously with the rotating shaft 21. The bristles 23 at its end scrape away impurities within the annular groove 12, preventing impurities from affecting equipment operation and material quality, ensuring a final product of uniform, high-quality solid powder. In practical applications, this solution is widely applicable to industries with high requirements for powder particle size, such as chemical, pharmaceutical, and food processing. As an alternative, the drive unit driving the rotating shaft 21 can be hydraulically driven instead of the motor 20 to adapt to different working environments and power requirements. The material of the filter plate 14 can be selected from different materials such as stainless steel and ceramic, depending on the characteristics of the grinding material, to improve the durability and adaptability of the filter plate 14 to the material.

[0030] like Figure 3 and Figure 4 As shown, in this embodiment, the crushing mechanism includes an annular groove 12 on the inner wall of the device body 10, a rack segment 13 on the annular groove 12, a roller 25 on the outer edge of the grinding roller 24, one end of the roller 25 being rotatably connected to the grinding roller 24, and the other end of the roller 25 being provided with a gear segment 252 that matches the rack segment 13. When the grinding roller 24 rotates around the rotating shaft 21, the roller 25 can rotate on the outer edge of the grinding roller 24 through the cooperation of the rack segment 13 and the gear segment 252. A drive unit for driving the rotating shaft 21 to rotate is provided on the rotating shaft 21.

[0031] The rotating connection between the roller 25 and the grinding roller 24 can be achieved using bearings to ensure flexible rotation. The motor 20 is connected to the end of the rotating shaft 21 via a coupling to stably transmit power. Alternatively, the rack section 13 and gear section 252 can be replaced with a chain and sprocket structure to achieve a similar transmission effect.

[0032] In this embodiment, the cleaning mechanism includes a connecting rod 22 mounted on a rotating shaft 21. One end of the connecting rod 22 is fixedly connected to the rotating shaft 21, and the other end of the connecting rod 22 is provided with bristles 23 for cleaning impurities in the annular groove 12. From top to bottom, the projection of the connecting rod 22 and the projection of the grinding roller 24 are not on the same straight line.

[0033] The connecting rod 22 is reliably fixed to the rotating shaft 21, which can be achieved by welding or bolting. The brush bristles 23 are made of a wear-resistant material, such as nylon. Because the connecting rod 22 and the grinding roller 24 are projected on different lines, the brush bristles 23 can thoroughly clean the annular groove 12 under the drive of the rotating shaft 21. This effectively prevents the accumulation of impurities and improves the stability of equipment operation. An alternative solution is to replace the brush bristles 23 with rubber scrapers, which can achieve the same purpose of cleaning impurities.

[0034] In this embodiment, the drive unit includes a motor 20 mounted on the device body 10, and the power output end of the motor 20 is connected to the end of the rotating shaft 21. Of course, belt drive can also be used, which can buffer the impact when the motor 20 starts to a certain extent.

[0035] Work process:

[0036] When this high-efficiency solid powder grinder is in operation, the motor 20 starts and drives the rotating shaft 21 to rotate via the coupling. This causes the grinding roller 24 to rotate around the rotating shaft 21 on the filter plate 14, performing preliminary grinding on the material on the filter plate 14. Simultaneously, the rack segment 13 on the annular groove 12 inside the device body 10 interacts with the gear segment 252 on the outer edge of the grinding roller 24's roller 25, causing the roller 25 to rotate on the outer edge of the grinding roller 24. The protrusions 251 on the outer edge of the roller 25 further compress and rub the material. During the rotation of the rotating shaft 21, the connecting rod 22 connected to the rotating shaft 21 drives the brush bristles 23 to rotate, cleaning impurities within the annular groove 12. Under the influence of gravity, the material passes through the filter plate 14. The diameter of the filter holes 141 on the filter plate 14 gradually decreases along the direction of material descent, screening the material. The radial array distribution of the filter holes 141 ensures uniform material dispersion, ultimately producing a powder with uniform particle size.

[0037] In this embodiment, a plurality of protrusions 251 are evenly distributed on the outer edge of the roller 25. The protrusions 251 are evenly distributed and can be hemispherical or prismatic in shape. During the rotation of the roller 25, the protrusions 251 enhance the compression and friction on the material, thereby improving the grinding efficiency. If special materials are being processed, the surface of the protrusions 251 can be specially treated, such as by hard chrome plating, to enhance wear resistance.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the connecting rod 22, brush bristles 23, grinding roller 24, drum 25, gear segment 252, annular groove 12, and rack segment 13 constitute the first grinding unit. A second grinding unit is also provided within the device body 10 along the axial direction of the rotating shaft 21. The first and second grinding units are arranged symmetrically or alternately within the device body 10. The component installation and connection methods of each unit are as described above. Multiple grinding units work together, significantly improving grinding efficiency and quality.

[0039] Example 2:

[0040] This invention can also achieve excellent results in other embodiments. In this embodiment, the diameter of the filter holes 141 of the filter plate 14 gradually decreases along the falling direction of the material. This ensures that the material is screened step by step, producing powder with a more uniform particle size.

[0041] In this embodiment, the filter holes 141 are arranged in a radial array on the filter plate 14. This ensures uniform dispersion of the material and improves the screening effect.

[0042] In this embodiment, the length of the bristles 23 in the vertical direction matches the height of the annular groove 12. This ensures that the bristles 23 can thoroughly clean the annular groove 12.

[0043] In this embodiment, the grinding roller 24 is arranged parallel to the filter plate 14. This parallel arrangement ensures uniform grinding. For processing materials with special shapes, the grinding roller 24 can be designed with an adjustable angle.

[0044] When this invention is applied to powder grinding, the rack segment 13 and gear segment 252 work together to rotate the drum 25, which, in conjunction with the grinding roller 24, greatly enhances the grinding force and improves the pulverization effect. The cleaning mechanism effectively prevents impurity accumulation, ensures stable equipment operation, and avoids impurities from contaminating the powder and affecting its quality. Multiple grinding units work together to significantly improve grinding efficiency. The filter plate 14 has gradually changing diameters and radially distributed filter holes 141, ensuring gradual material screening and producing high-quality powder with uniform particle size, suitable for the fine grinding needs of various materials.

[0045] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A high-efficiency grinding mill for solid powders, comprising a device body (10) and a filter plate (14) disposed inside the device body (10), and further comprising grinding rollers (24) disposed on the filter plate (14), characterized in that, The filter plate (14) is rotatably provided with a rotating shaft (21), and a grinding roller (24) is fixed on the rotating shaft (21). The grinding roller (24) is provided with a crushing mechanism for enhancing the grinding force. When the grinding roller (24) rotates around the rotating shaft (21) on the filter plate (14), it can drive the crushing mechanism to further crush the material. The rotating shaft (21) is also provided with a cleaning mechanism for scraping off impurities attached to the crushing mechanism.

2. A high efficiency solid state powder grinding machine as claimed in claim 1, wherein, The crushing mechanism includes an annular groove (12) on the inner wall of the device body (10), a rack segment (13) on the annular groove (12), a roller (25) on the outer edge of the grinding roller (24), one end of the roller (25) being rotatably connected to the grinding roller (24), and the other end of the roller (25) being provided with a gear segment (252) matching the rack segment (13). When the grinding roller (24) rotates around the rotating shaft (21), the roller (25) can rotate on the outer edge of the grinding roller (24) through the cooperation of the rack segment (13) and the gear segment (252); a drive unit for driving the rotating shaft (21) to rotate is provided on the rotating shaft (21).

3. A high efficiency solid state powder grinding machine as claimed in claim 2, wherein, The cleaning mechanism includes a connecting rod (22) mounted on the rotating shaft (21). One end of the connecting rod (22) is fixedly connected to the rotating shaft (21), and the other end of the connecting rod (22) is provided with bristles (23) for cleaning impurities in the annular groove (12). From top to bottom, the projection of the connecting rod (22) and the projection of the grinding roller (24) are not on the same straight line.

4. The solid-state powder high-efficiency grinding machine according to claim 2, characterized in that, The drive unit includes a motor (20) mounted on the device body (10), and the power output end of the motor (20) is connected to the end of the rotating shaft (21).

5. The solid-state powder high-efficiency grinding machine according to claim 2, characterized in that, The outer edge of the roller (25) is uniformly provided with a number of protrusions (251).

6. The solid-state powder high-efficiency grinding machine according to claim 3, characterized in that, The connecting rod (22), brush bristles (23), grinding roller (24), drum (25), gear segment (252), annular groove (12) and rack segment (13) constitute the first grinding unit. In the axial direction of the rotating shaft (21), the device body (10) is also provided with a second grinding unit.

7. A high efficiency solid state powder grinding machine as claimed in claim 6 wherein, Along the falling direction of the material, the diameter of the filter holes (141) of the filter plate (14) gradually decreases.

8. A high efficiency solid state powder grinding machine as claimed in claim 7, wherein, The filter holes (141) are arranged in a radial array on the filter plate (14).

9. A high-efficiency grinding mill for solid powders according to claim 3, characterized in that, The length of the bristles (23) in the vertical direction matches the height of the annular groove (12).

10. A high-efficiency grinding mill for solid powders according to any one of claims 1-9, characterized in that, The grinding roller (24) is arranged parallel to the filter plate (14).

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