Grinding and screening device
Through the device with integrated grinding and screening functions, the problem of low processing efficiency of mica raw materials in traditional pearlescent pigment production is solved, uniform grinding and efficient screening of materials are achieved, and production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202421818856.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In the production of traditional pearlescent pigments, the processing efficiency of mica raw materials is inefficient, and the grinding and screening process steps are cumbersome, which affects product quality and production efficiency.
A device integrating grinding and screening functions is designed. Through the cooperation of the conical grinding block and the conical grinding groove, the periodic vibration of the conical screening bucket is driven by the motor to achieve uniform grinding and efficient screening of materials.
It improves the processing efficiency of mica raw materials, improves the grinding effect and screening accuracy, reduces material transport and repeated processing, and improves overall production efficiency.
Smart Images
Figure CN223082870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pearlescent pigment production, in particular to a grinding and screening device. Background Technique
[0002] In the technical field of pearlescent pigment production, mica is used as the core base material. The fine processing quality directly determines the quality of the final pearlescent pigment product. The particle size and its distribution uniformity of mica are the key factors affecting the gloss, covering power and color expressiveness of pearlescent pigments. However, the traditional mica raw material treatment process faces many challenges, seriously restricting the efficiency of pearlescent pigment production and product quality.
[0003] In the traditional process, the coarsely crushed mica material is sent into a grinding device for further refinement, and then the ground material needs to be separately classified by a screening device, which not only increases the process steps but also results in low overall processing efficiency. Therefore, we propose a grinding and screening device. Content of the Utility Model
[0004] In view of the problems existing in the prior art, the utility model discloses a grinding and screening device, and the technical scheme adopted is as follows: it includes a box body, a feed pipe, a grinding and screening unit and a conical screening hopper. The rear end of the top of the box body is provided with a feed pipe, and the feed pipe is communicated with a conical groove arranged at the top inside the box body. The center of the bottom of the conical groove is provided with a connecting groove, and the bottom of the connecting groove is communicated with a conical grinding groove. The bottom of the conical grinding groove is communicated with a screening bin arranged at the inner bottom of the box body. A conical screening hopper is arranged inside the screening bin. The bottom of the conical screening hopper is evenly arranged with screen holes around the circumference. A connecting platform is arranged at the outer top of the conical screening hopper, and buffer components are respectively arranged at the four corners of the connecting platform. A grinding and screening unit is arranged in a circular through groove opened at the center of the bottom of the conical screening hopper. The grinding and screening unit includes a motor, a connecting shaft, a conical grinding block, an annular lifting block, a fixed shaft and a roller. The connecting shaft is rotatably installed at the center of the top of the box body, the top end of the connecting shaft is fixedly connected with the output shaft of a motor fixedly installed on the top of the box body, a conical grinding block is arranged in the middle of the connecting shaft, the outer side of the conical grinding block is in movable contact with the inner side of the conical grinding groove, fixed shafts are respectively arranged at the left and right ends of the bottom of the connecting shaft, rollers are respectively rotatably installed at the ends of the fixed shafts, the annular lifting block is fixedly installed at the center of the bottom of the conical screening hopper, the bottom of the annular lifting block is in a "wave" shape, and the bottom of the annular lifting block is in movable contact with the outer side of the roller. An installation through groove is arranged at the front bottom of the box body, a collection frame one is movably installed inside the installation through groove, and a collection frame two is arranged at the center of the inner bottom of the collection frame one.
[0005] As a preferred technical solution of the present utility model, the top diameter of the conical screening hopper is larger than the bottom diameter of the conical grinding groove.
[0006] As a preferred technical solution of the present utility model, the buffer assembly includes guide rods and a support plate. The guide rods are respectively slidably installed in the sliding holes provided at the four corners of the connecting platform. The top parts of the guide rods are respectively fixedly connected to the inner top of the screening bin, and the bottom parts of the guide rods are respectively fixedly connected to the support plates provided on the left and right sides inside the screening bin.
[0007] As a preferred technical solution of the present utility model, the buffer assembly further includes compression springs and buffer blocks. The compression springs are respectively sleeved outside the guide rods. The upper and lower ends of the compression springs are respectively fixedly connected to the inner top of the screening bin and the top of the connecting platform. The buffer blocks are respectively fixedly installed at the bottom of the guide rods, and the top parts of the buffer blocks are respectively in movable contact with the bottom of the connecting platform.
[0008] As a preferred technical solution of the present utility model, the second collection frame is circular in structure, and the diameter of the second collection frame is larger than the diameter of the central circular through hole at the bottom of the conical screening hopper.
[0009] As a preferred technical solution of the present utility model, it further includes a controller. The controller is arranged at the front end of the top right side of the box body. The output end of the controller is electrically connected to the input end of the motor, and the input end of the controller is electrically connected to the output end of an external power supply.
[0010] The beneficial effects of the present utility model: Through the operation of the motor, its output shaft drives the conical grinding block to rotate through the connecting shaft. Since the conical grinding block is in movable contact with the inner side of the conical grinding groove, the material is preliminarily ground by the shear force and frictional force generated by the rotation. The fixed shaft is driven to rotate through the connecting shaft. Under the interaction of the rollers and the annular lifting block, the conical screening hopper is driven to move up and down, generating periodic vibration through the conical screening hopper. This vibration helps to improve the screening efficiency.
[0011] In summary, this grinding and screening device integrates the functions of grinding and screening, reduces the material transfer and repeated processing links, significantly improves the processing efficiency of mica raw materials, adopts the combined design of the conical grinding block and the conical grinding groove to achieve uniform and efficient grinding of the material, effectively improves the grinding effect, and utilizes the vibration screening mechanism of the conical screening hopper and combines the screening power generated by periodic vibration to improve the screening accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 is a schematic sectional structure diagram of the present utility model;
[0014] Figure 3 This is a schematic diagram of the local structure of grinding and screening for the present utility model.
[0015] In the figure: 1. Box body; 2. Feed pipe; 3. Controller; 4. Conical groove; 5. Grinding and screening unit; 51. Motor; 52. Connecting shaft; 53. Conical grinding block; 54. Annular lifting block; 55. Fixed shaft; 56. Roller; 6. Connecting groove; 7. Conical grinding groove; 8. Conical screening hopper; 9. Screening bin; 10. Connecting platform; 11. Guide rod; 12. Compression spring; 13. Buffer block; 14. Support plate; 15. Installation through groove; 16. Collection frame one; 17. Collection frame two. Specific implementation mode
[0016] Embodiment 1
[0017] As Figures 1 to 3As shown in the figure, the utility model discloses a grinding and screening device, and the adopted technical solution is as follows: it includes a box body 1, a feed pipe 2, a grinding and screening unit 5 and a conical screening hopper 8. A feed pipe 2 is arranged at the rear end of the top of the box body 1, and the feed pipe 2 is communicated with a conical groove 4 arranged at the top inside the box body 1, so as to facilitate the user to add the material to be ground into the conical groove 4 from the feed pipe 2. A connecting groove 6 is arranged at the center of the bottom of the conical groove 4, and a conical grinding groove 7 is communicated with the bottom of the connecting groove 6. The bottom of the conical grinding groove 7 is communicated with a screening bin 9 arranged at the inner bottom of the box body 1. A conical screening hopper 8 is arranged inside the screening bin 9. Screen holes are evenly arranged in an array around the bottom of the conical screening hopper 8. A connecting platform 10 is arranged at the outer top of the conical screening hopper 8, and buffer components are respectively arranged at the four corners of the connecting platform 10. The buffer component includes a guide rod 11 and a support plate 14. The guide rods 11 are respectively slidably installed in the sliding holes arranged at the four corners of the connecting platform 10. The top parts of the guide rods 11 are respectively fixedly connected with the inner top of the screening bin 9. The bottom parts of the guide rods 11 are respectively fixedly connected with the support plates 14 arranged on the left and right sides inside the screening bin 9. The buffer component further includes a compression spring 12 and a buffer block 13. The compression springs 12 are respectively sleeved on the outer sides of the guide rods 11. The upper and lower ends of the compression springs 12 are respectively fixedly connected with the inner top of the screening bin 9 and the top of the connecting platform 10. The buffer blocks 13 are respectively fixedly installed at the bottom of the guide rods 11. The top parts of the buffer blocks 13 are respectively in movable contact with the bottom of the connecting platform 10. During the up-and-down movement of the conical screening hopper 8, the connecting platform 10 on its outer side slides along the guide rod 11. At the same time, when the connecting platform 10 moves upward, the compression spring 12 sleeved on the outer side of the guide rod 11 is squeezed, so that the compression spring 12 deforms and stores energy. When the connecting platform 10 moves downward, the compression spring 12 releases energy, thereby helping the conical screening hopper 8 to quickly reset. In addition, the buffer blocks 13 arranged at the bottom of the guide rods 11 can prevent collision between the connecting platform 10 and the support plate 14, reducing the vibration and noise of the equipment. The diameter of the top of the conical screening hopper 8 is larger than the diameter of the bottom of the conical grinding groove 7, ensuring that the material can smoothly drain from the conical grinding groove 7 into the conical screening hopper 8. A grinding and screening unit 5 is arranged in the circular through groove opened at the center of the bottom of the conical screening hopper 8. The grinding and screening unit 5 includes a motor 51, a connecting shaft 52, a conical grinding block 53, an annular lifting block 54, a fixed shaft 55 and a roller 56. The connecting shaft 52 is rotatably installed at the center of the top of the box body 1. The top end of the connecting shaft 52 is fixedly connected with the output shaft of the motor 51 fixedly installed on the top of the box body 1. A conical grinding block 53 is arranged in the middle of the connecting shaft 52. The outer side of the conical grinding block 53 is in movable contact with the inner side of the conical grinding groove 7. By running the motor 51, its output shaft drives the conical grinding block 53 to rotate through the connecting shaft 52. Since the conical grinding block 53 is in movable contact with the inner side of the conical grinding groove 7, the material is preliminarily ground by the shearing force and friction force generated by the rotation. The ground material is then discharged into the conical screening hopper 8.At the left and right ends of the bottom of the connecting shaft 52, fixed shafts 55 are respectively provided. At the end parts of the fixed shafts 55, rollers 56 are respectively rotatably installed. The annular lifting block 54 is fixedly installed at the bottom center of the conical screening hopper 8. The bottom of the annular lifting block 54 is in a "wavy" shape. The bottom of the annular lifting block 54 is in movable contact with the outer side of the roller 56. By continuously rotating the connecting shaft 52, the connecting shaft 52 drives the fixed shaft 55 to rotate. Since the roller 56 on the fixed shaft 55 is in movable contact with the bottom of the annular lifting block 54 with a "wavy" bottom, during the rotation of the fixed shaft 55, the roller 56 will push the annular lifting block 54 and the conical screening hopper 8 to move up and down. At the bottom front side of the box body 1, an installation through groove 15 is provided. Inside the installation through groove 15, a first collection frame 16 is movably installed. The first collection frame 16 can collect the fine-grained materials after grinding. At the center of the inner bottom of the first collection frame 16, a second collection frame 17 is provided. The second collection frame 17 is of a circular structure. The diameter of the second collection frame 17 is larger than the diameter of the circular through groove at the bottom center of the conical screening hopper 8, which ensures that the un-screened materials can smoothly enter the second collection frame 17. It also includes a controller 3. The controller 3 is arranged at the front end of the top right side of the box body 1. The output end of the controller 3 is electrically connected to the input end of the motor 51. The input end of the controller 3 is electrically connected to the output end of an external power supply. Through the setting of the controller 3, it is convenient for the user to control the motor 51.,
[0018] Working principle of the present utility model: When in use, the material to be ground is added into the conical groove 4 at the inner top of the box body 1 from the feed pipe 2, so that the material slides along the inclined surface of the conical groove 4 towards the connecting groove 6 and enters the inside of the conical grinding groove 7 through the connecting groove 6. Then the user can start the motor 51 through the controller 3. When the motor 51 is running, its output shaft drives the conical grinding block 53 to rotate through the connecting shaft 52. Since the conical grinding block 53 is in movable contact with the inner side of the conical grinding groove 7, the material is preliminarily ground by the shearing force and frictional force generated by the rotation. The ground material is then discharged into the conical screening hopper 8. Through the continuous rotation of the connecting shaft 52, the connecting shaft 52 drives the fixed shaft 55 to rotate. Since the roller 56 on the fixed shaft 55 is in movable contact with the bottom of the annular lifting block 54 with a "wavy" bottom, during the rotation of the fixed shaft 55, the roller 56 will push the annular lifting block 54 and the conical screening hopper 8 to move up and down. During the up and down movement of the conical screening hopper 8, the connecting platform 10 on its outer side slides along the guide rod 11. At the same time, when the connecting platform 10 moves upward, it squeezes the compression spring 12 sleeved outside the guide rod 11, causing the compression spring 12 to deform and store energy. When the connecting platform 10 moves downward, the compression spring 12 releases energy, thereby helping the conical screening hopper 8 to quickly reset. In addition, the buffer block 13 provided at the bottom of the guide rod 11 can prevent a collision between the connecting platform 10 and the support plate 14. Through the periodic vibration generated by the conical screening hopper 8, this vibration helps to improve the screening efficiency, enabling the fine-grained material to fall into the lower collection frame 16 through the sieve holes more quickly, while the material particles not screened by the sieve holes fall into the inside of the collection frame 17 from the circular through-hole at the center of the bottom of the conical screening hopper 8.
[0019] The circuit connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to the widely used prior art.
[0020] The components not described in detail in this article are prior art.
[0021] Although the specific embodiments of the present utility model are described in detail above, the present utility model is not limited to the above embodiments. Within the knowledge scope of those ordinary skilled in the art, various changes can be made without departing from the purpose of the present utility model, and the modifications or deformations without creative labor are still within the protection scope of the present utility model.
Claims
1. A grinding and screening device, characterized in that, It includes a box body (1), a feed pipe (2), a grinding and screening unit (5) and a conical screening hopper (8). A feed pipe (2) is arranged at the rear end of the top of the box body (1), and the feed pipe (2) is communicated with a conical groove (4) arranged at the inner top of the box body (1). A connecting groove (6) is arranged at the center of the bottom of the conical groove (4), and a conical grinding groove (7) is communicated with the bottom of the connecting groove (6). The bottom of the conical grinding groove (7) is communicated with a screening bin (9) arranged at the inner bottom of the box body (1). A conical screening hopper (8) is arranged inside the screening bin (9). Screen holes are evenly arranged in an array around the bottom of the conical screening hopper (8). A connecting platform (10) is arranged at the outer top of the conical screening hopper (8), and buffer components are respectively arranged at the four corners of the connecting platform (10). A grinding and screening unit (5) is arranged in a circular through groove opened at the center of the bottom of the conical screening hopper (8). The grinding and screening unit (5) includes a motor (51), a connecting shaft (52), a conical grinding block (53), an annular lifting block (54), a fixed shaft (55) and a roller (56). The connecting shaft (52) is rotatably installed at the center of the top of the box body (1), and the top end of the connecting shaft (52) is fixedly connected with the output shaft of the motor (51) fixedly installed on the top of the box body (1). A conical grinding block (53) is arranged in the middle of the connecting shaft (52), and the outer side of the conical grinding block (53) is in movable contact with the inner side of the conical grinding groove (7). Fixed shafts (55) are respectively arranged at the left and right ends of the bottom of the connecting shaft (52), and rollers (56) are respectively rotatably installed at the ends of the fixed shafts (55). The annular lifting block (54) is fixedly installed at the center of the bottom of the conical screening hopper (8), the bottom of the annular lifting block (54) is in a "wave" shape, and the bottom of the annular lifting block (54) is in movable contact with the outer side of the roller (56). An installation through groove (15) is arranged at the front bottom of the box body (1), a collection frame one (16) is movably installed inside the installation through groove (15), and a collection frame two (17) is arranged at the center of the inner bottom of the collection frame one (16).
2. The grinding and screening device according to claim 1, wherein: The diameter of the top of the conical screening hopper (8) is larger than the diameter of the bottom of the conical grinding groove (7).
3. A grinding and screening device according to claim 1, characterized in that: The buffer component includes guide rods (11) and support plates (14). The guide rods (11) are respectively slidably installed in slide holes arranged at the four corners of the connecting platform (10), the top ends of the guide rods (11) are fixedly connected with the inner top of the screening bin (9), and the bottom ends of the guide rods (11) are fixedly connected with support plates (14) arranged on the left and right sides inside the screening bin (9).
4. A grinding and screening device according to claim 3, characterized in that: The buffer assembly further includes compression springs (12) and buffer blocks (13). The compression springs (12) are respectively sleeved on the outer sides of the guide rods (11). The upper and lower ends of the compression springs (12) are respectively fixedly connected to the inner top of the screening bin (9) and the top of the connecting platform (10). The buffer blocks (13) are respectively fixedly installed at the bottoms of the guide rods (11), and the tops of the buffer blocks (13) are respectively in movable contact with the bottoms of the connecting platform (10).
5. A grinding and screening device according to claim 1, characterized in that: The second collection box (17) is of a circular structure, and the diameter of the second collection box (17) is greater than the diameter of the circular through groove at the center of the bottom of the conical screening hopper (8).
6. The grinding and screening device according to claim 1, characterized in that: It further includes a controller (3). The controller (3) is arranged at the front end of the right top of the box body (1). The output end of the controller (3) is electrically connected to the input end of the motor (51), and the input end of the controller (3) is electrically connected to the output end of an external power supply.