Screening and grinding machine for outputting feed additives

Abstract

The utility model relates to the technical field of screening and grinding machines, in particular to a screening and grinding machine for outputting feed additives. Which comprises a tank body, a grinding assembly arranged in the tank body and used for grinding materials, a screening device arranged in the tank body and used for screening the ground materials and a cleaning mechanism arranged at the bottom of the tank body and used for cleaning the screening device, and is characterized in that an annular sliding rail is fixed to the inner wall of the tank body; the cleaning mechanism comprises an annular sliding seat capable of rotating, and the annular sliding seat can be in sliding fit with the annular sliding rail. A plurality of mounting frames are horizontally arranged on the inner side of the annular sliding seat, and a cleaning device capable of cleaning the bottom of the screening device is arranged at the top ends of the mounting frames; and a toothed belt is arranged at the edge of the bottom of the annular sliding seat. The problem that the screening efficiency of a screening device is low due to the fact that the screening device is easily blocked by ground materials is solved.

Description

Technical Field

[0001] This utility model relates to the field of screening and grinding machine technology, specifically to a screening and grinding machine for outputting feed additives. Background Technology

[0002] Feed additive screening and grinding mills are key equipment in feed production, integrating screening and grinding functions to effectively improve the particle size uniformity and dispersibility of feed additives. Through high-speed rotation and vibration, raw materials are finely ground to the required particle size, while precise grading using screens ensures product quality. This equipment is easy to operate and maintain, and is widely used in the processing of various feed additives such as traditional Chinese medicine, minerals, and vitamins. It is an important tool for improving feed quality and production efficiency.

[0003] Chinese patent CN116273408B discloses a feed additive grinding device, including a body, a material distribution mechanism, and a crushing mechanism. The material distribution mechanism includes a screening component and a flow guiding component. The screening component is used to separate materials into different categories, and the flow guiding component is connected to the screening component for conveying the screened materials. The crushing mechanism is used to grind the different categories of materials separately. The material distribution mechanism can separate materials of different particle sizes, improving subsequent grinding efficiency. The design of the first and second chambers allows the separated materials to undergo further grinding at a higher precision after the initial crushing and grinding. This minimizes the difference in material size between each grinding cycle, resulting in smaller differences in the size of the ground materials, improving grinding efficiency and quality, and preventing over-grinding of small-diameter materials.

[0004] The feed additive grinding device described in the aforementioned patent document grinds the material, which is then screened through a sieve. However, the material easily clogs the sieve holes during the screening process, thus reducing screening efficiency. Therefore, a screening and grinding machine for feed additive output is proposed. Utility Model Content

[0005] To address the aforementioned issues, a screening and grinding mill for feed additive output is provided. A second servo motor drives a gear to rotate, which in turn drives a ring-shaped slide block to slide along a ring-shaped rail via a meshing toothed belt. Simultaneously, the ring-shaped slide block, via a mounting frame, drives a cleaning brush to clean the bottom of the screening device. This prevents the ground material from clogging the screening device, thereby improving its screening efficiency.

[0006] To address the problems of existing technologies, this application provides a screening and grinding machine for outputting feed additives, comprising a tank, a grinding assembly disposed inside the tank for grinding materials, a screening device disposed inside the tank for screening the ground materials, and a cleaning mechanism disposed at the bottom of the tank for cleaning the screening device. An annular slide rail is fixed to the inner wall of the tank. The cleaning mechanism includes a rotatable annular slide block that slides with the annular slide rail. Several mounting brackets are horizontally arranged on the inner side of the annular slide block, and a cleaning brush for cleaning the bottom of the screening device is disposed at the top of each mounting bracket. A toothed belt is disposed at the edge of the bottom of the annular slide block. A second servo motor is disposed outside the tank, and a gear that meshes with the toothed belt is disposed at the output end of the second servo motor.

[0007] As one technical solution of this application, the grinding assembly includes a rotating shaft vertically installed inside the tank body, a splined shaft at the bottom end of the rotating shaft, a limiting sleeve movably installed on the outside of the splined shaft that can move longitudinally along its central axis, at least two mounting shafts horizontally arranged on both sides of the limiting sleeve, and a grinding roller for grinding the material rotatably arranged on the outside of the mounting shaft, the bottom of the grinding roller contacting the top of the screening device; a first servo motor for driving the rotating shaft to rotate is arranged at the top of the tank body, and the top of the rotating shaft can be fixedly connected to the output end of the first servo motor.

[0008] As one technical solution of this application, a mounting base is fixed on the top of the inner wall of the tank near the annular slide rail, and the screening device includes a fixing frame fixed on the mounting base. A screen plate for screening materials is horizontally arranged on the inner side of the fixing frame; the top of the cleaning brush can contact the lower end surface of the screen plate.

[0009] As one technical solution of this application, the spline shaft is further provided with a reset spring for pushing the limit sleeve downward.

[0010] As one technical solution of this application, an extension shaft is longitudinally arranged at the center of the bottom of the fixed frame, and a sleeve that can be fitted onto the outside of the extension shaft is longitudinally arranged at the center of the annular slide. Several fixed rods are equidistantly arranged on the outside of the cleaning mechanism. A scraper that can clean the inner wall of the tank is provided at the end of the fixed rod away from the sleeve. The scraper can contact the inner wall of the tank.

[0011] As one technical solution of this application, a feeding funnel for adding materials is provided on the top of the tank near the first servo motor.

[0012] As one technical solution of this application, the bottom of the feeding funnel is provided with an installation groove that can penetrate through its two sides, and the inside of the installation groove is provided with two baffles for controlling the feeding speed; on the other two sides of the bottom of the feeding funnel, bidirectional telescopic hydraulic components for controlling the baffles to move closer or further apart are horizontally installed, and the output ends of the bidirectional telescopic hydraulic components are installed on both sides of the baffles.

[0013] As one technical solution of this application, a support is provided on the outer wall of the tank near the bottom, which can support the tank and ensure its stability.

[0014] The advantages of this utility model compared to the prior art are:

[0015] This application utilizes a second servo motor to drive a gear to rotate, while the gear, through a meshing toothed belt, drives an annular slide block to slide along an annular slide rail. Simultaneously, the annular slide block, via a mounting bracket, drives a cleaning brush to clean the bottom of the screening device. This prevents the ground material from clogging the screening device, thereby improving its screening efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of a screening and grinding machine used for feed additive output.

[0017] Figure 2 This is a top view of a screening and grinding mill used for feed additive output.

[0018] Figure 3 yes Figure 2 Sectional view at point AA.

[0019] Figure 4 This is an exploded view of a screening device in a screening and grinding mill used for feed additive output.

[0020] Figure 5 This is a perspective view of a cleaning mechanism in a screening and grinding mill used for feed additive output.

[0021] Figure 6 This is an exploded view of the grinding component in a screening and grinding mill used for feed additive output.

[0022] Figure 7 This is an exploded view of the feed hopper in a screening and grinding mill used for feed additive output.

[0023] Figure 8 yes Figure 3 A magnified structural diagram at point B in the diagram.

[0024] The following are the labels in the diagram: 1. Tank body; 11. Mounting base; 12. Annular slide rail; 13. Bracket; 2. Feed hopper; 21. Mounting groove; 22. Baffle; 23. Bidirectional telescopic hydraulic component; 3. Grinding assembly; 31. Rotating shaft; 311. Splined shaft; 32. Return spring; 33. Limit sleeve; 34. Mounting shaft; 35. Grinding roller; 36. First servo motor; 4. Screening device; 41. Fixing frame; 42. Screening disc; 43. Extension shaft; 5. Cleaning mechanism; 51. Annular slide; 52. Toothed belt; 53. Mounting frame; 54. Cleaning brush; 55. Sleeve; 56. Fixing rod; 6. Scraper; 7. Second servo motor; 71. Gear. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1-8 As shown, a screening and grinding machine for outputting feed additives includes a tank 1, a grinding assembly 3 disposed inside the tank 1 for grinding materials, a screening device 4 disposed inside the tank 1 for screening the ground materials, and a cleaning mechanism 5 disposed at the bottom of the tank 1 for cleaning the screening device 4. An annular slide rail 12 is fixed on the inner wall of the tank 1. The cleaning mechanism 5 includes a rotatable annular slide block 51, which can slide and cooperate with the annular slide rail 12. Several mounting brackets 53 are horizontally arranged on the inner side of the annular slide block 51, and a cleaning brush 54 is provided at the top of the mounting bracket 53 for cleaning the bottom of the screening device 4. A toothed belt 52 is provided at the bottom edge of the annular slide block 51. A second servo motor 7 is provided outside the tank 1, and a gear 71 that can mesh with the toothed belt 52 is provided at the output end of the second servo motor 7.

[0027] When the second servo motor 7 drives the gear 71 to rotate, the gear 71 drives the annular slide 51 to rotate through the meshing toothed belt 52. During the rotation of the annular slide 51, the cleaning brush 54 rotates synchronously through the mounting bracket 53. This allows the cleaning brush 54 to effectively clean the bottom of the screening device 4, preventing the ground material from clogging the screening device 4 and thus improving screening efficiency. To ensure the stability of the annular slide 51, an annular slide rail 12 is provided on the inner wall of the tank 1, and the annular slide 51 is slidably mounted on the annular slide rail 12. When the annular slide 51 rotates, it can slide along the outside of the annular slide rail 12, effectively ensuring the stable operation of the annular slide 51.

[0028] See Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, the grinding assembly 3 includes a rotating shaft 31 vertically installed inside the tank 1. A spline shaft 311 is provided at the bottom end of the rotating shaft 31. A limiting sleeve 33 that can move longitudinally along its central axis is movably installed on the outside of the spline shaft 311. At least two mounting shafts 34 are horizontally arranged on both sides of the limiting sleeve 33. A grinding roller 35 for grinding materials is rotatably arranged on the outside of the mounting shaft 34. The bottom of the grinding roller 35 is in contact with the top of the screening device 4. A first servo motor 36 for driving the rotating shaft 31 to rotate is provided at the top of the tank 1. The top of the rotating shaft 31 can be fixedly connected to the output end of the first servo motor 36.

[0029] When grinding the material inside tank 1, the first servo motor 36 drives the rotating shaft 31 to rotate. Simultaneously, the rotating shaft 31 drives the limiting sleeve 33 to rotate synchronously via the splined shaft 311. The limiting sleeve 33 then drives its externally horizontally positioned mounting shaft 34, causing the mounting shaft 34 to move in a circular motion around the central axis of the splined shaft 311. Subsequently, the mounting shaft 34 drives its externally positioned grinding roller 35 to move synchronously, causing the grinding roller 35 to move in a high-speed circular motion around the central axis of the splined shaft 311, while simultaneously rotating along the mounting shaft 34. During the rotation of the grinding roller 35, the bottom of the grinding roller 35 compresses the material, causing the material to break down, thus completing the grinding process.

[0030] See Figure 4 As shown, a mounting base 11 is fixed on the inner wall of the tank 1 near the top of the annular slide rail 12. The screening device 4 includes a fixing frame 41 fixed on the mounting base 11. A screen plate 42 for screening materials is horizontally arranged on the inner side of the fixing frame 41. The top of the cleaning brush 54 can contact the lower end face of the screen plate 42.

[0031] During the grinding process, materials that meet the grinding standards can fall smoothly to the bottom of the tank 1 through the sieve holes on the sieve plate 42. Larger particles remain on the upper surface of the sieve plate 42 and continue to be repeatedly ground by the grinding rollers 35. This process continues until all materials reach the predetermined particle size standard.

[0032] See Figure 4 and Figure 6 As shown, a return spring 32 for pushing the limit sleeve 33 downward is also provided on the outside of the spline shaft 311.

[0033] To ensure the grinding efficiency of the grinding assembly 3, a return spring 32 is installed outside the splined shaft 311. The bottom end of the return spring 32 abuts against the top of the limiting sleeve 33, allowing the return spring 32 to push the limiting sleeve 33 downward along the central axis of the splined shaft 311. During the downward movement of the limiting sleeve 33, the grinding roller 35 is driven to move downward synchronously via the mounting shaft 34, ensuring that the bottom of the grinding roller 35 remains in contact with the upper surface of the screen disk 42. This ensures that the grinding roller 35 maintains contact with the upper surface of the screen disk 42 while grinding the material, preventing separation between the grinding roller 35 and the screen disk 42. This effectively improves the grinding efficiency of the grinding assembly 3.

[0034] See Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, an extension shaft 43 is longitudinally arranged at the center of the bottom of the fixed frame 41, and a sleeve 55 that can be fitted onto the outside of the extension shaft 43 is longitudinally arranged at the center of the annular slide 51. Several fixed rods 56 are equidistantly arranged on the outside of the cleaning mechanism 5. A scraper 6 that can clean the inner wall of the tank 1 is provided at the end of the fixed rod 56 away from the sleeve 55. The scraper 6 can contact the inner wall of the tank 1.

[0035] To ensure smooth discharge of material from the tank 1, a sleeve 55 is installed at the center of the bottom of the annular slide 51 and fitted onto the outside of the extension shaft 43. When the annular slide 51 rotates, it drives the sleeve 55 to rotate along the central axis of the extension shaft 43, ensuring synchronous movement between the sleeve 55 and the annular slide 51. Simultaneously, the sleeve 55 drives the fixed rod 56 connected to it to move synchronously around the central axis of the extension shaft 43. The scraper 6 at the end of the fixed rod 56 away from the sleeve 55 effectively cleans the inner wall of the tank 1. During the cleaning process by the scraper 6, the material adhering to the inner wall of the tank 1 is smoothly discharged through the discharge port at the bottom of the tank 1 under the influence of gravity.

[0036] See Figure 1 As shown, a feeding funnel 2 for adding materials is provided on the top of the tank 1 near the first servo motor 36.

[0037] When materials need to be added, the materials are put into the inside of the feed hopper 2, and then the feed hopper 2 adds the materials evenly into the inside of the tank 1.

[0038] See Figure 7As shown, the bottom of the feed hopper 2 is provided with an installation groove 21 that can penetrate through its two sides. Inside the installation groove 21 are two baffles 22 for controlling the feeding speed. On the other two sides of the bottom of the feed hopper 2, bidirectional telescopic hydraulic components 23 for controlling the baffles 22 to move closer or further apart are horizontally installed. The output ends of the bidirectional telescopic hydraulic components 23 are installed on both sides of the baffles 22.

[0039] During the rapid material addition process, the bidirectional telescopic hydraulic component 23 is activated. As the output end of the bidirectional telescopic hydraulic component 23 extends, it causes the two connected baffles 22 to move away from each other. At this time, the opening inside the feed hopper 2 gradually widens, allowing material to be added into the tank 1 at a faster rate. If the material addition speed is too fast, the output end of the bidirectional telescopic hydraulic component 23 begins to slowly retract to adjust. As the output end of the bidirectional telescopic hydraulic component 23 retracts, the two baffles 22 gradually move closer, thereby adjusting the size of the opening inside the feed hopper 2 to slow down the material addition rate. This ensures the continuity and stability of material addition.

[0040] See Figure 1 and Figure 3 As shown, a support 13 is provided on the outer wall of the tank 1 near the bottom. The support 13 can support the tank 1 and ensure the stability of the tank 1.

[0041] To ensure the stable operation of tank 1, a support 13 is installed on the outside of tank 1. The main function of the support 13 is to provide stable support for tank 1 to prevent unnecessary displacement or shaking during operation, thus ensuring the stability and safety of tank 1.

[0042] In operation, the material is evenly added into the tank 1 through the feeding funnel 2. Then, the first servo motor 36 drives the rotating shaft 31 to rotate, which in turn drives the spline shaft 311 to rotate, and the spline shaft 311 drives the limiting sleeve 33 to rotate synchronously. The limiting sleeve 33 further drives the mounting shaft 34 and the grinding roller 35 to move in a high-speed circular motion around the central axis of the spline shaft 311. At the same time, the grinding roller 35 rotates along the mounting shaft 34 to grind the material in the tank 1. The ground material falls to the bottom of the tank 1 through the sieve holes of the screen plate 42, while larger particles continue to be ground by the grinding roller 35 until the particle size meets the standard. To ensure grinding efficiency, the return spring 32 is set outside the spline shaft 311, abutting against the top of the limiting sleeve 33, pushing the limiting sleeve 33 and the grinding roller 35 downward to ensure that the grinding roller 35 is always in contact with the upper surface of the screen plate 42. At the same time, the second servo motor 7 drives the gear 71 to rotate, which drives the annular slide 51 to rotate through the toothed belt 52. The annular slide block 51 slides along the annular slide rail 12 provided on the inner wall of the tank body 1, ensuring stable operation of the annular slide block 51. When the annular slide block 51 rotates, the cleaning brush 54 rotates synchronously through the mounting frame 53 to clean the bottom of the screen plate 42, preventing material from clogging the screen plate 42 and improving screening efficiency. In addition, the sleeve 55 provided at the center of the bottom of the annular slide block 51 is fitted onto the outside of the extension shaft 43 and rotates with the annular slide block 51, driving the fixed rod 56 and scraper 6 to move and clean the inner wall of the tank body 1. Under the action of the scraper 6, the material separates from the inner wall of the tank body 1 and is smoothly discharged through the discharge port.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A screening and grinding mill for outputting feed additives, comprising a tank (1), a grinding assembly (3) disposed inside the tank (1) for grinding materials, a screening device (4) disposed inside the tank (1) for screening the ground materials, and a cleaning mechanism (5) disposed at the bottom of the tank (1) for cleaning the screening device (4), characterized in that, The inner wall of the tank (1) is fixed with an annular slide rail (12); the cleaning mechanism (5) includes an annular slide block (51) that can rotate, and the annular slide block (51) can slide with the annular slide rail (12); a number of mounting brackets (53) are horizontally arranged on the inner side of the annular slide block (51), and a cleaning brush (54) that can clean the bottom of the screening device (4) is provided at the top of the mounting bracket (53); a toothed belt (52) is provided at the bottom edge of the annular slide block (51), and a second servo motor (7) is provided on the outside of the tank (1), and a gear (71) that can mesh with the toothed belt (52) is provided at the output end of the second servo motor (7).

2. The screening and grinding mill for feed additive output according to claim 1, characterized in that, The grinding assembly (3) includes a rotating shaft (31) vertically installed inside the tank (1). A spline shaft (311) is provided at the bottom end of the rotating shaft (31). A limiting sleeve (33) that can move longitudinally along its central axis is movably installed on the outside of the spline shaft (311). At least two mounting shafts (34) are horizontally arranged on both sides of the limiting sleeve (33). A grinding roller (35) for grinding materials is rotatably arranged on the outside of the mounting shaft (34). The bottom of the grinding roller (35) is in contact with the top of the screening device (4). A first servo motor (36) for driving the rotating shaft (31) to rotate is provided at the top of the tank (1). The top of the rotating shaft (31) can be fixedly connected to the output end of the first servo motor (36).

3. A screening and grinding mill for feed additive output according to claim 1, characterized in that, The tank body (1) has a mounting base (11) fixed on the top of the annular slide rail (12) on the inner wall. The screening device (4) includes a fixing frame (41) fixed on the mounting base (11). A screen plate (42) for screening materials is horizontally arranged on the inner side of the fixing frame (41). The top of the cleaning brush (54) can contact the lower end face of the screen plate (42).

4. A screening and grinding mill for feed additive output according to claim 2, characterized in that, The spline shaft (311) is also provided with a return spring (32) for pushing the limit sleeve (33) downward.

5. A screening and grinding mill for feed additive output according to claim 3, characterized in that, An extension shaft (43) is longitudinally arranged at the center of the bottom of the fixed frame (41), and a sleeve (55) that can be fitted onto the outside of the extension shaft (43) is longitudinally arranged at the center of the annular slide (51). Several fixed rods (56) are equidistantly arranged on the outside of the cleaning mechanism (5). A scraper (6) that can clean the inner wall of the tank (1) is provided at the end of the fixed rod (56) away from the sleeve (55). The scraper (6) can contact the inner wall of the tank (1).

6. A screening and grinding mill for feed additive output according to claim 2, characterized in that, A feeding funnel (2) for adding materials is provided on the top of the tank (1) near the first servo motor (36).

7. A screening and grinding mill for feed additive output according to claim 6, characterized in that, The bottom of the feeding hopper (2) is provided with an installation groove (21) that can penetrate through its two sides. Inside the installation groove (21) are two baffles (22) for controlling the feeding speed. On the other two sides of the bottom of the feeding hopper (2), bidirectional telescopic hydraulic components (23) for controlling the baffles (22) to move closer or further apart are horizontally installed. The output ends of the bidirectional telescopic hydraulic components (23) are installed on both sides of the baffles (22).

8. A screening and grinding mill for feed additive output according to claim 1, characterized in that, A support (13) is provided on the outer wall of the tank (1) near the bottom. The support (13) can support the tank (1) and ensure the stability of the tank (1).

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