An ultra-micro roller impact mill
By introducing sorting and screening mechanisms into the roller impact mill, and utilizing multi-stage screening and power drive devices, the problems of decreased crushing effect and uneven particle size caused by inconsistent material particle size were solved, thereby improving the uniformity of material particle size and crushing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG YOUXIN POWDER EQUIP CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-29
AI Technical Summary
In existing roller impact mills, inconsistent material particle size leads to reduced grinding efficiency and uneven product particle size.
The system employs a sorting and screening mechanism. Materials are initially and further screened through a first and second filter screen. Combined with the action of a drive motor and an electric push rod, the uniformity of material particle size is ensured. The sorting mechanism feeds different particles into an impact mill for roller pressing and impact crushing.
It improves the crushing effect and the consistency of product particle size, ensuring that the material enters the grinding chamber with uniform particle size, thereby improving the efficiency of the crushing process and the quality of the product.
Smart Images

Figure CN224293466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling impact mill technology, and in particular to an ultra-micro rolling impact mill. Background Technology
[0002] A roller impact mill is a device used for material crushing, combining the crushing principles of roller pressing and impact. For example, patent document CN218609648U discloses an impact mill comprising: a cylinder with a main shaft running through it; and a drive mechanism connected to the main shaft for driving the main shaft to rotate.
[0003] In the existing technology, when using a roller impact mill, the particle size of the material entering the equipment is inconsistent. Oversized and undersized particles are mixed together, and their movement trajectories are different. They collide and squeeze with other particles, which will interfere with the normal crushing process, resulting in a decrease in the overall crushing effect and uneven particle size of the product. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the existing technology where the particle size of the material entering the equipment is inconsistent, and excessively large and small particles are mixed together, which interferes with the normal crushing process. Therefore, an ultra-micro rolling impact mill is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an ultra-micro rolling impact mill, comprising an impact mill body, a sorting mechanism installed at the feed inlet of the impact mill body, a screening mechanism installed on one side of the sorting mechanism, the screening mechanism comprising a guide groove, a fixed box fixedly connected to the top of the guide groove, a first filter screen and a second filter screen fixedly connected inside the fixed box, the second filter screen being installed below the first filter screen, a scraper being provided at the top of both the first and second filter screens, a connecting block being fixedly connected to one end of the scraper, a second connecting rod being fixedly connected to the middle of the connecting block, one end of the second connecting rod passing through one side of the fixed box, and a first opening being provided on one side of the fixed box and one side of the guide groove.
[0006] Preferably, a connecting plate is fixedly connected to one end of the second connecting rod, a first connecting rod is fixedly connected to one side of the connecting plate, and a rotating push rod is rotatably connected to one end of the first connecting rod.
[0007] Preferably, a support block is slidably connected to the outside of the first connecting rod, and one end of the support block is fixedly connected to one end of the guide groove.
[0008] Preferably, a fixed plate is fixedly connected to one side of the guide groove, a drive motor is fixedly connected to one side of the fixed plate, a rotating disk is fixedly connected to the output end of the drive motor, and one side of the rotating disk is rotatably connected to one end of the rotating push rod.
[0009] Preferably, the sorting mechanism includes a sorting box, one side of which is fixedly connected to one side of a fixed box. A baffle is provided on one side of the fixed box, and both ends of the baffle pass through the upper and lower sides of the sorting box in sequence. A second opening is provided on one side of the baffle.
[0010] Preferably, a guide rail is fixedly connected to one side of the baffle, and the outside of the guide rail is slidably connected to the sorting box.
[0011] Preferably, a movable frame is fixedly connected to the top of the baffle, an electric push rod is fixedly connected to one end of the movable frame, and one side of the electric push rod is fixedly connected to the outside of the sorting box.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the material is sequentially screened by a first filter screen and a second filter screen. The first filter screen can initially screen larger particles, and the second filter screen is used to further screen medium-sized particles. Smaller particles fall onto the inner slope of the guide groove. The drive motor drives the rotating disk to rotate, and the rotating push rod moves the first connecting rod, the connecting plate and the second connecting rod, which in turn move the connecting block and the scraper, scraping away the particles accumulated above the first and second filter screens. This improves the screening effect and makes the particle size of the material entering the grinding chamber more uniform, which is beneficial to improving the crushing effect and the consistency of product particle size.
[0014] 2. In this utility model, after sorting materials of different particle sizes, the moving frame is moved by the operation of the electric push rod, and the baffle moves accordingly. The outside of the baffle moves on the upper and lower sides of the sorting box, so that the second opening is connected with different first openings, thereby sending materials of different particle sizes into the interior of the impact mill body for rolling and impact crushing operations, ensuring the consistency of particles entering the impact mill body. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of an ultra-micro rolling impact mill is provided for this utility model;
[0016] Figure 2 This utility model provides a cross-sectional structural diagram of the screening and sorting mechanism of an ultra-micro rolling impact mill;
[0017] Figure 3 This utility model provides a schematic diagram of the first connection structure inside the screening mechanism of an ultra-micro rolling impact mill;
[0018] Figure 4 This invention presents a schematic diagram of the second internal connection structure of the screening mechanism of an ultra-micro rolling impact mill.
[0019] Legend: 1. Impact mill body; 2. Screening mechanism; 21. Fixed plate; 22. Drive motor; 23. Fixed box; 24. Rotating push rod; 25. First connecting rod; 26. Scraper; 27. Connecting block; 28. Second connecting rod; 29. First filter screen; 210. Second filter screen; 211. First opening; 212. Guide groove; 213. Support block; 214. Connecting plate; 215. Rotating disk; 3. Sorting mechanism; 31. Sorting box; 32. Guide rail; 33. Moving frame; 34. Second opening; 35. Electric push rod; 36. Baffle. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides an ultra-micro rolling impact mill, including an impact mill body 1. A sorting mechanism 3 is installed at the feed inlet of the impact mill body 1. A screening mechanism 2 is installed on one side of the sorting mechanism 3. The screening mechanism 2 includes a guide groove 212. A fixed box 23 is fixedly connected to the top of the guide groove 212. A first filter screen 29 and a second filter screen 210 are fixedly connected inside the fixed box 23. The second filter screen 210 is installed below the first filter screen 29. Scrapers 26 are provided at the top of both the first filter screen 29 and the second filter screen 210. A connecting block 27 is fixedly connected to one end of the scraper 26. A second connecting rod 28 is fixedly connected to the middle of the connecting block 27. One end of the second connecting rod 28 passes through the fixed box. A first opening 211 is provided on one side of the fixed box 23 and one side of the guide groove 212; a connecting plate 214 is fixedly connected to one end of the second connecting rod 28, a first connecting rod 25 is fixedly connected to one side of the connecting plate 214, and a rotating push rod 24 is rotatably connected to one end of the first connecting rod 25; a support block 213 is slidably connected to the outside of the first connecting rod 25, and one end of the support block 213 is fixedly connected to one end of the guide groove 212; a fixed plate 21 is fixedly connected to one side of the guide groove 212, a drive motor 22 is fixedly connected to one side of the fixed plate 21, a rotating disk 215 is fixedly connected to the output end of the drive motor 22, and one side of the rotating disk 215 is rotatably connected to one end of the rotating push rod 24.
[0023] Material is fed into the fixed box 23 through the feed inlet and passes through the first filter screen 29 and the second filter screen 210 in sequence. The mesh size of the first filter screen 29 is smaller than that of the second filter screen 210. The first filter screen 29 can initially screen larger particles, while the second filter screen 210 is used to further screen medium-sized particles. Smaller particles fall onto the inner slope of the guide groove 212. The drive motor 22 drives the rotating disk 215 to rotate. A rotating push rod 24 is eccentrically arranged on one side of the rotating disk 215. The rotating push rod 24 moves with the rotation of the rotating disk 215, driving the first connecting rod 25 to move. The first connecting rod 25 slides inside the support block 213 and fixes the first connecting rod 25 to make linear motion. The connecting plate 214 and the second connecting rod 28 move, driving the connecting block 27 and the scraper 26 to move, scraping the particles accumulated above the first filter screen 29 and the second filter screen 210, which facilitates the improvement of the screening effect and makes the particle size of the material entering the grinding chamber more uniform, which is conducive to improving the crushing effect and the consistency of product particle size.
[0024] Example 2: Figure 1 and Figure 4 As shown, the sorting mechanism 3 includes a sorting box 31. One side of the sorting box 31 is fixedly connected to one side of the fixed box 23. A baffle 36 is provided on one side of the fixed box 23. The two ends of the baffle 36 pass through the upper and lower sides of the sorting box 31 in sequence. A second opening 34 is provided on one side of the baffle 36. A guide rail 32 is fixedly connected to one side of the baffle 36. The outside of the guide rail 32 is slidably connected to the sorting box 31. A movable frame 33 is fixedly connected to the top of the baffle 36. An electric push rod 35 is fixedly connected to one end of the movable frame 33. One side of the electric push rod 35 is fixedly connected to the outside of the sorting box 31.
[0025] The overall effect of this embodiment is that after sorting materials of different particle sizes, the electric push rod 35 drives the moving frame 33 to move, and the baffle 36 moves accordingly. The outside of the baffle 36 moves on the upper and lower sides of the sorting box 31, while the guide rail 32 slides on the sorting box 31. The fixed baffle 36 moves linearly in the up and down direction, so that the second opening 34 is connected to different first openings 211, thereby sending materials of different particle sizes into the interior of the impact mill body 1 for rolling and impact crushing operations.
[0026] The operating method and working principle of this device are as follows: Material is fed into the fixed box 23 through the inlet, and sequentially passes through the first filter screen 29 and the second filter screen 210. The drive motor 22 drives the rotating disk 215 to rotate. A rotating push rod 24 is eccentrically positioned on one side of the rotating disk 215. The rotating push rod 24 moves with the rotation of the rotating disk 215, causing the first connecting rod 25 to move, the connecting plate 214 and the second connecting rod 28 to move, which in turn moves the connecting block 27 and the scraper 26, thus moving the material from the first filter screen 29 and the second filter screen 210. The accumulated particles are scraped, and the first filter screen 29 can initially screen out larger particles. The second filter screen 210 is used to further screen out medium-sized particles. Smaller particles fall onto the inner slope of the guide groove 212. The electric push rod 35 drives the moving frame 33 to move, and the baffle 36 moves accordingly. The outside of the baffle 36 moves on the upper and lower sides of the sorting box 31, so that the second opening 34 is connected to different first openings 211, thereby sending materials of different particle sizes into the interior of the impact mill body 1. The impact mill body 1 performs rolling and impact crushing operations.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An ultra-micro rolling impact mill, comprising an impact mill body (1), characterized in that: A sorting mechanism (3) is installed at the feed inlet of the impact mill body (1). A screening mechanism (2) is installed on one side of the sorting mechanism (3). The screening mechanism (2) includes a guide groove (212). A fixed box (23) is fixedly connected to the top of the guide groove (212). A first filter screen (29) and a second filter screen (210) are fixedly connected inside the fixed box (23). The second filter screen (210) is installed below the first filter screen (29). A scraper (26) is provided at the top of both the first filter screen (29) and the second filter screen (210). A connecting block (27) is fixedly connected to one end of the scraper (26). A second connecting rod (28) is fixedly connected to the middle of the connecting block (27). One end of the second connecting rod (28) passes through one side of the fixed box (23). A first opening (211) is provided on one side of the fixed box (23) and one side of the guide groove (212).
2. The ultra-micro rolling impact mill according to claim 1, characterized in that: One end of the second connecting rod (28) is fixedly connected to a connecting plate (214), and one side of the connecting plate (214) is fixedly connected to a first connecting rod (25). One end of the first connecting rod (25) is rotatably connected to a rotating push rod (24). A fixed plate (21) is fixedly connected to one side of the guide groove (212), a drive motor (22) is fixedly connected to one side of the fixed plate (21), a rotating disk (215) is fixedly connected to the output end of the drive motor (22), and one side of the rotating disk (215) is rotatably connected to one end of the rotating push rod (24).
3. The ultra-micro rolling impact mill according to claim 2, characterized in that: The first connecting rod (25) is externally slidably connected to a support block (213), one end of which is fixedly connected to one end of the guide groove (212).
4. The ultra-micro rolling impact mill according to claim 1, characterized in that: The sorting mechanism (3) includes a sorting box (31), one side of the sorting box (31) is fixedly connected to one side of the fixed box (23), and a baffle (36) is provided on one side of the fixed box (23). The two ends of the baffle (36) pass through the upper and lower sides of the sorting box (31) in sequence, and a second opening (34) is provided on one side of the baffle (36).
5. The ultra-micro rolling impact mill according to claim 4, characterized in that: A guide rail (32) is fixedly connected to one side of the baffle (36), and the outside of the guide rail (32) is slidably connected to the sorting box (31); A movable frame (33) is fixedly connected to the top of the baffle (36), and an electric push rod (35) is fixedly connected to one end of the movable frame (33). One side of the electric push rod (35) is fixedly connected to the outside of the sorting box (31).