Novel ball feeding mechanism of ball mill
A novel ball mill ball-adding mechanism, which combines a 3D camera and a moving component with an electromagnetic chuck, enables automated positioning and orderly addition of ball mill media. This solves the problems of high labor intensity and inaccurate filling rate caused by manual addition, improves grinding efficiency, and avoids ball jamming and clogging.
Patent Information
- Application Number
- CN202422905465.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The addition of media in existing ball mills relies on manual operation, which leads to high labor intensity, inaccurate ball addition, difficulty in achieving automation and intelligence, and difficulty in ensuring a reasonable filling rate, resulting in low grinding efficiency and frequent ball jamming and clogging.
A 3D camera is used to identify the grinding media. Combined with X-axis, Y-axis, and Z-axis moving components and an electromagnetic chuck, the grinding media is automatically positioned and picked up, and then transported into the ball mill in an orderly manner through a guide chute.
It enables accurate addition of media to the ball mill, avoids ball jamming and clogging, meets the requirements for mixed addition of steel balls of various specifications, and improves grinding efficiency and filling rate.
Smart Images

Figure CN223615987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball mill technology, and in particular to a novel ball mill ball feeding mechanism. Background Technology
[0002] In ore grinding operations, it is often necessary to regularly add grinding media such as steel balls into the ball mill for coarse and fine grinding of the ore. A reasonable steel ball filling rate is a prerequisite for ensuring the efficient operation of the ball mill. Currently, grinding media in mineral processing plants are mainly replenished manually, which is labor-intensive, results in inaccurate ball addition, and makes it difficult to achieve the required filling rate, thus reducing grinding efficiency. The current market offers simple ball-adding equipment such as drum-type, rotary table-type, suction cup-type, and U-type ball mills, but their actual performance is not ideal, with low levels of automation and intelligence, leading to frequent ball jamming and blockage. Furthermore, it is difficult to achieve mixed addition of steel balls or steel rods of various specifications, failing to guarantee that the ball mill's filling rate remains within a reasonable range for efficient and low-consumption operation. Therefore, this paper proposes a new type of ball mill ball-adding mechanism. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art in order to solve the problems existing in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] This utility model discloses a novel ball mill ball feeding mechanism, comprising a material hopper, a track assembly fixedly mounted on the upper end of the material hopper, an electromagnetic chuck connected to the track assembly, a 3D camera connected to one side of the electromagnetic chuck, grinding media disposed inside the material hopper, the track assembly capable of moving the 3D camera and electromagnetic chuck to any position within the material hopper, a guide chute connected to one side of the material hopper, one end of the guide chute connected to the ball mill, and the track assembly, electromagnetic chuck, and 3D camera all electrically connected to a controller.
[0006] As a preferred embodiment of the present invention, the track assembly includes an X-axis moving assembly, a Y-axis moving assembly, and a Z-axis moving assembly.
[0007] As a preferred technical solution of this utility model, the X-axis moving assembly includes a frame, two linear electric slides, and two slide blocks. The frame is fixedly installed on the upper end of the material bin. Two linear electric slides are provided on the upper end of the frame. The two slide blocks are slidably disposed on the corresponding linear electric slides and can be connected and fixed to the linear electric slides at any position on their sliding trajectory. The upper surfaces of the two slide blocks are connected to the same linear electric slide.
[0008] As a preferred embodiment of this utility model, one end of each of the two linear electric slides is connected to the same crossbar.
[0009] As a preferred technical solution of this utility model, the Y-axis moving assembly includes a second linear electric slide, a second slide block, and a cylinder. The second linear electric slide is fixedly connected to the upper surface of the two first slide blocks. The second slide block is slidably disposed on the second linear electric slide and can be connected and fixed to the second linear electric slide at any position on its sliding trajectory. A cylinder is fixedly connected to one side of the second slide block.
[0010] As a preferred embodiment of this utility model, the Z-axis moving component includes a cylinder, the output end of the cylinder is connected to a connecting block, the lower end of the connecting block is fixedly mounted with an electromagnetic chuck, and a 3D camera is fixedly mounted on one side of the connecting block.
[0011] As a preferred embodiment of this utility model, the guide chute is a rectangular cylinder with an open top, and the upper end of the guide chute is the same width as the material bin.
[0012] As a preferred technical solution of this utility model, the bottom of the electromagnetic chuck is a concave spherical surface, which is beneficial for absorbing the grinding medium (i.e., the grinding ball) and has better reliability.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] A 3D camera captures and identifies images of the grinding media within the material hopper. Based on this identification, a signal is sent to the controller along with the coordinates of the grinding media. The track assembly then positions the media using X-axis, Y-axis, and Z-axis movement components. Once positioned, a cylinder lowers, bringing the electromagnetic chuck into contact with and picking up the grinding media. The chuck moves the collected media above the guide chute, then de-energizes it, allowing the media to slide into the ball mill through the guide chute. This device accurately picks up the grinding media using 3D camera recognition, ensuring a sequential and orderly feeding process. This effectively prevents ball jamming and clogging, accommodates the mixed addition of steel balls of various sizes, guarantees sufficient filling material in the ball mill, and improves operational efficiency. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the track assembly of this utility model;
[0018] Figure 3 This is a schematic diagram of the Z-axis moving component of this utility model.
[0019] The following are labeled in the diagram: 1. Material bin; 2. Track assembly; 3. Electromagnetic chuck; 4. 3D camera; 5. Guide chute; 6. Frame; 7. Linear electric slide one; 8. Slide one; 9. Linear electric slide two; 10. Crossbar; 11. Cylinder; 12. Connecting block; 13. Crossbar. Detailed Implementation
[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] like Figure 1-3As shown, this utility model discloses a novel ball mill ball feeding mechanism, including a material bin 1. A track assembly 2 is fixedly installed at the upper end of the material bin 1, and an electromagnetic chuck 3 is connected to the track assembly 2. A 3D camera 4 is connected to one side of the electromagnetic chuck 3. The 3D camera 4 can take pictures and identify the grinding media in the material bin 1. The material bin 1 contains grinding media. The track assembly 2 can drive the 3D camera 4 and the electromagnetic chuck 3 to move to any position in the material bin 1. The track assembly 2 drives the 3D camera 4 to take pictures and identify the material in the material bin 1. Based on the material identification, a signal is sent to the controller, and the coordinates of the grinding media are provided. Then, the electromagnetic chuck 3 picks up the grinding media. A guide chute 5 is connected to one side of the material bin 1. One end of the guide chute 5 is connected to the ball mill. The picked-up grinding media moves to the guide chute 5 and slides into the ball mill. The track assembly 2, the electromagnetic chuck 3, and the 3D camera 4 are all electrically connected to the controller.
[0023] Furthermore, the track assembly 2 includes an X-axis movement assembly, a Y-axis movement assembly, and a Z-axis movement assembly. The X-axis movement assembly includes a frame 6, two linear electric slides 7, and two slide blocks 8. The frame 6 is fixedly installed on the upper end of the material bin 1. Two linear electric slides 7 are provided on the upper end of the frame 6. The two slide blocks 8 are slidably mounted on the corresponding linear electric slides 7 and can be connected and fixed to the linear electric slides 7 at any position on their sliding trajectory. The upper surfaces of the two slide blocks 8 are connected to the same linear electric slide 9. That is to say, the two linear electric slides 7 are used to control the X-axis direction to drive the linear electric slide 9 to move in the X-axis direction. One end of the two linear electric slides 7 is connected to the same crossbar 13, which ensures the movement of the two linear electric slides 9. The position of the platform 7; the Y-axis moving assembly includes a linear electric slide 29, a slide 20, and a cylinder 11. The linear electric slide 29 is fixedly connected to the upper surface of the two slides 18. The slide 20 is slidably mounted on the linear electric slide 29 and can be connected and fixed to the linear electric slide 29 at any position on its sliding trajectory. The cylinder 11 is fixedly connected to one side of the slide 20. That is, the Y-axis direction is controlled by the linear electric slide 29, which drives the cylinder 11 to move in the Y-axis direction. The output end of the cylinder 11 is connected to a connecting block 12. An electromagnetic chuck 3 is fixedly installed at the lower end of the connecting block 12. A 3D camera 4 is fixedly installed on one side of the connecting block 12. When the 3D camera 4 successfully recognizes the material, the cylinder 11 moves down, bringing the electromagnetic chuck 3 into contact with the grinding medium and picking it up.
[0024] The guide chute 5 is a rectangular cylinder with an open top. The upper end of the guide chute 5 is the same width as the material bin 1, so that the electromagnetic chuck 3 can put the grinding media into the guide chute 5 through the shortest path, reducing adsorption time and power consumption. The outlet section of the guide chute 5 is narrowed so that the grinding media can slide accurately into the ball mill along the guide chute 5.
[0025] Specifically, during operation, the 3D camera 4 captures and identifies images of the grinding media within the material hopper 1. Based on the identified materials, a signal is sent to the controller, providing the coordinates of the grinding media. The track assembly 2 then positions the media using X-axis, Y-axis, and Z-axis moving components. After positioning, the cylinder 11 moves downwards, bringing the electromagnetic chuck 3 into contact with and absorbing the grinding media. The absorbed media moves above the guide chute 5, and then the electromagnetic chuck 3 is de-energized, allowing the grinding media to slide into the ball mill through the guide chute 5. This device accurately absorbs the grinding media through the 3D camera 4, sequentially and orderly placing it into the guide chute 5 and then into the ball mill. This ensures orderly feeding into the ball mill, effectively preventing ball jamming and blockage, accommodating the mixed addition of steel balls of various specifications, guaranteeing the ball mill's filling material, and improving work efficiency.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A novel ball mill ball feeding mechanism, comprising a material hopper (1), characterized in that: A track assembly (2) is fixedly installed at the upper end of the material bin (1). An electromagnetic chuck (3) is connected to the track assembly (2). A 3D camera (4) is connected to one side of the electromagnetic chuck (3). Grinding media is installed inside the material bin (1). The track assembly (2) can drive the 3D camera (4) and the electromagnetic chuck (3) to move at any position inside the material bin (1). A guide chute (5) is connected to one side of the material bin (1). One end of the guide chute (5) is connected to the ball mill. The track assembly (2), the electromagnetic chuck (3), and the 3D camera (4) are all electrically connected to the controller.
2. The novel ball mill ball feeding mechanism according to claim 1, characterized in that, The track assembly (2) includes an X-axis moving assembly, a Y-axis moving assembly and a Z-axis moving assembly.
3. The novel ball mill ball feeding mechanism according to claim 2, characterized in that, The X-axis moving assembly includes a frame (6), two linear electric slides (7) and two slide blocks (8). The frame (6) is fixedly installed on the upper end of the material bin (1). The upper end of the frame (6) is provided with two linear electric slides (7). The two slide blocks (8) are slidably arranged on the corresponding linear electric slides (7) and can be connected and fixed to the linear electric slides (7) at any position of their sliding trajectory. The upper surfaces of the two slide blocks (8) are connected to the same linear electric slide (9).
4. The novel ball mill ball feeding mechanism according to claim 3, characterized in that, One end of each of the two linear electric slides (7) is connected to the same crossbar (13).
5. A novel ball mill ball feeding mechanism according to claim 3, characterized in that, The Y-axis moving assembly includes a second linear electric slide (9), a second slide (10), and a cylinder (11). The second linear electric slide (9) is fixedly connected to the upper surface of two first slides (8). The second slide (10) is slidably disposed on the second linear electric slide (9) and can be connected and fixed to the second linear electric slide (9) at any position on its sliding trajectory. A cylinder (11) is fixedly connected to one side of the second slide (10).
6. A novel ball mill ball feeding mechanism according to claim 5, characterized in that, The Z-axis moving assembly includes a cylinder (11), the output end of which is connected to a connecting block (12), an electromagnetic chuck (3) is fixedly installed at the lower end of the connecting block (12), and a 3D camera (4) is fixedly installed on one side of the connecting block (12).
7. A novel ball mill ball feeding mechanism according to claim 1, characterized in that, The material guide chute (5) is a rectangular cylinder with an open top, and the upper end of the material guide chute (5) is the same width as the material bin (1).