Chemical grinding machine with multi-stage screening function
The design of the multi-stage screening chemical grinding mill realizes multi-stage grinding and screening of materials, solving the problems of low grinding efficiency and material adhesion in the existing technology, and improving the working efficiency and effect of the grinding mill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN YULONG PRECISION MASCH EQUIP MFG CO LTD
- Filing Date
- 2024-12-28
- Publication Date
- 2026-04-17
AI Technical Summary
Existing chemical grinding mills require multiple steps in the material grinding process to achieve different standards, and the lack of cleaning measures leads to the adhesion of material residue, affecting the grinding effect.
A multi-stage chemical grinding mill was designed. By setting up multiple sets of grinding boxes and grinding rollers, combined with a conveyor screen belt, cam and spring mechanism, multi-stage grinding and screening of materials can be achieved. It is also equipped with a sweeping brush to remove adhering materials and adjust the spacing of the grinding rollers to adapt to different grinding needs.
It enables one-time multi-stage grinding and screening of materials, improving work efficiency and effectively removing adhering materials to ensure grinding effect.
Smart Images
Figure CN224127365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical grinding machine technology, specifically a multi-stage screening chemical grinding machine. Background Technology
[0002] Chemical grinding mills crush and grind materials through mechanical action to achieve the required particle size and uniformity. For example, grinding mills are suitable for industries such as pharmaceuticals, chemicals, pesticides, food, and grains. Through the high-speed relative motion of the moving toothed disc and the fixed toothed disc, the material to be crushed is crushed through a combination of tooth impact, friction, and mutual impact.
[0003] In the process of using chemical grinding mills, the grinding standards of materials are uniform and fixed. However, for different material grinding needs, the materials need to be processed in multiple grinding mills in stages to achieve multi-stage grinding and screening of materials to obtain materials with different grinding standards for use in different production processes. This results in low work efficiency. Furthermore, the grinding columns in the grinding mills currently in use do not have corresponding cleaning measures during operation. During the grinding process, material debris adheres to and accumulates on the grinding columns, affecting their performance. Utility Model Content
[0004] The purpose of this invention is to provide a multi-stage screening chemical grinding mill to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage screening chemical grinding mill, comprising a mounting box, a feed inlet at the top of the mounting box, multiple sets of equidistantly distributed grinding boxes inside the mounting box, a mounting frame fixedly installed below each set of grinding boxes, a fixed frame slidably installed on each of the multiple sets of mounting frames, a conveying screen belt on the fixed frame, two sets of symmetrically distributed fixed seats slidably installed inside the grinding box, grinding rollers rotatably installed on each of the two sets of fixed seats, two sets of symmetrically distributed first bidirectional lead screws inside the grinding box, two sets of symmetrically distributed second bidirectional lead screws inside the grinding box, two sets of symmetrically distributed positioning rods inside the mounting frame, the fixed frame slidably connected to the positioning rods via a sliding bracket, and a brush on the fixed seat, the brush being in contact with the corresponding grinding roller.
[0006] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed limiting plates are slidably installed inside the grinding box. The two sets of limiting plates are respectively set to correspond to the two sets of grinding rollers. Each set of limiting plates has a telescopic plate at its upper end. The two ends of the telescopic plate are respectively fixedly connected to the corresponding limiting plate and the top of the grinding box.
[0007] As a further preferred embodiment of this technical solution, the two ends of the two sets of first bidirectional lead screws respectively pass through the grinding box and are rotatably connected to the grinding box through bearings, and the two ends of the two sets of first bidirectional lead screws respectively pass through the two sets of limiting plates and are threadedly connected to the two sets of limiting plates respectively.
[0008] As a further preferred embodiment of this technical solution, the two ends of the two sets of second bidirectional lead screws respectively pass through the grinding box and are rotatably connected to the grinding box through bearings. The two ends of the two sets of second bidirectional lead screws respectively pass through the two sets of fixed seats and are threadedly connected to the two sets of fixed seats. The left ends of the two sets of second bidirectional lead screws and the first bidirectional lead screw are all fitted with synchronous pulleys. The grinding box is provided with two sets of synchronous belts, and the two sets of synchronous belts are respectively connected to the corresponding two sets of synchronous pulleys for transmission.
[0009] As a further preferred embodiment of this technical solution, a first spring is sleeved on the positioning rod, and the two ends of the first spring are fixedly connected to the mounting bracket and the slide respectively. A first cam is provided inside the mounting bracket, and the first cam is rotatably connected to the mounting bracket through a rotating shaft. The first cam is in contact with the slide.
[0010] As a further preferred embodiment of this technical solution, the brush is slidably connected to the fixed base, a slide rod is fixedly installed inside the fixed base, the brush is slidably sleeved with the slide rod, and a second spring is sleeved on the slide rod, with the two ends of the second spring being fixedly connected to the brush and the fixed base respectively.
[0011] As a further preferred embodiment of this technical solution, the fixed base is provided with a second cam, which is rotatably connected to the fixed base via a rotating shaft, and the second cam is in contact with the brush.
[0012] This utility model provides a multi-stage screening chemical grinding mill, which has the following beneficial effects:
[0013] (1) This utility model achieves the grinding of materials by setting up a grinding box and two sets of symmetrically distributed grinding rollers installed inside, and the ground materials are conveyed by a conveying screen belt. At the same time, the first cam and the first spring are used to complete the screening. Materials that do not meet the level discharge standard will enter the next level grinding box. The grinding fineness in different level grinding boxes can be adjusted by adjusting the distance between the two sets of fixed seats and the grinding rollers installed above by the first bidirectional screw and the second bidirectional screw, so that the materials in the grinding device can be ground and screened in multiple layers at one time.
[0014] (2) The present invention removes the material adhering to the surface of the grinding roller during the rotation process by setting the brush in the fixed seat, so as to avoid the material always adhering to the grinding roller, which would affect the normal use effect of the grinding roller and the standard of material grinding. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the grinding box of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the conveyor screen belt of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;
[0019] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;
[0020] Figure 6 This is a schematic diagram of the structure of the sweeping brush of this utility model;
[0021] In the diagram: 1. Mounting box; 2. Feed inlet; 3. Grinding box; 4. Mounting frame; 5. Limiting plate; 6. Telescopic plate; 7. First bidirectional lead screw; 8. Second bidirectional lead screw; 9. Grinding roller; 10. Synchronous pulley; 11. Synchronous belt; 12. Fixed seat; 13. Fixed frame; 14. Conveying screen belt; 15. Slide frame; 16. Positioning rod; 17. First spring; 18. First cam; 19. Sweeping brush; 20. Slide rod; 21. Second spring; 22. Second cam. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figures 1-5As shown in this embodiment, a multi-stage screening chemical grinding mill includes a mounting box 1. A feed inlet 2 is provided above the mounting box 1. Multiple sets of equidistantly distributed grinding boxes 3 are provided inside the mounting box 1. A mounting frame 4 is fixedly installed below each set of grinding boxes 3. Fixed frames 13 are slidably installed on the multiple sets of mounting frames 4. A conveying screen belt 14 is provided on the fixed frames 13. Two sets of symmetrically distributed fixed seats 12 are slidably installed inside the grinding boxes 3. Grinding rollers 9 are rotatably installed on both sets of fixed seats 12. Two sets of symmetrically distributed first bidirectional lead screws 7 and two sets of symmetrically distributed second bidirectional lead screws 8 are provided inside the grinding boxes 3. Two sets of symmetrically distributed positioning rods 16 are provided inside the mounting frames 4. The fixed frames 13 are slidably connected to the positioning rods 16 through a slide 15. A brush 19 is provided on the fixed seat 12, and the brush 19 is in contact with the corresponding grinding roller 9. The material is fed into the grinding box 3 through the feed port 2 above the mounting box 1, and falls between the two sets of grinding rollers 9 under the action of two sets of symmetrically distributed limiting plates 5. The two sets of relatively rotating grinding rollers 9 complete the grinding of the material, and the ground material passes through the two sets of grinding rollers 9 and enters the conveying screen belt 14.
[0024] Two sets of symmetrically distributed limiting plates 5 are slidably installed inside the grinding box 3. The two sets of limiting plates 5 are respectively positioned corresponding to two sets of grinding rollers 9. Each set of limiting plates 5 has a telescopic plate 6 at its upper end, with both ends of the telescopic plate 6 fixedly connected to the corresponding limiting plate 5 and the top of the grinding box 3. The two ends of two sets of first bidirectional lead screws 7 pass through the grinding box 3 and are rotatably connected to it via bearings. The two ends of the two sets of first bidirectional lead screws 7 also pass through the two sets of limiting plates 5 and are threadedly connected to them. The two ends of two sets of second bidirectional lead screws 8 pass through the grinding box 3 and are rotatably connected to it via bearings. The two ends of the two sets of second bidirectional lead screws 8 also pass through the two sets of fixed seats 12 and are threadedly connected to them. Synchronous pulleys 10 are sleeved on the left ends of both sets of second bidirectional lead screws 8 and first bidirectional lead screws 7. Two sets of synchronous belts 11 are provided inside the grinding box 3, and the two sets of synchronous belts 11 are respectively connected to the corresponding sets of synchronous pulleys 10.
[0025] The grinding box 3 adjusts the distance between the two sets of relatively distributed limiting plates 5, fixed seats 12 and grinding rollers 9 by rotating the first bidirectional lead screw 7 and the second bidirectional lead screw 8. The distance between the two grinding rollers 9 in each level of the grinding box 3 decreases from large to small, which meets different grinding requirements and standards.
[0026] A first spring 17 is sleeved on the positioning rod 16. The two ends of the first spring 17 are fixedly connected to the mounting frame 4 and the slide 15, respectively. A first cam 18 is provided inside the mounting frame 4, and the first cam 18 is rotatably connected to the mounting frame 4 via a rotating shaft. The first cam 18 is in contact with the slide 15. During the process of conveying material to the right, the conveyor belt 14 activates the motor on the mounting frame 4, driving the first cam 18 to rotate. This intermittently pushes the slide 15, and, in conjunction with the positioning rod 16 and the first spring 17, causes the fixed frame 13 to drive the conveyor belt 14 to vibrate, completing the screening of the material. Material that meets the discharge standard of the conveyor belt 14 is discharged to the right along with the conveyor belt 14. Material smaller than the aperture of the conveyor belt 14 falls into the grinding box 3 in the lower level after passing through the conveyor belt 14.
[0027] like Figure 3 and Figure 6 As shown, the brush 19 is slidably connected to the fixed base 12. A slide rod 20 is fixedly installed inside the fixed base 12. The brush 19 is slidably sleeved with the slide rod 20. A second spring 21 is sleeved on the slide rod 20. The two ends of the second spring 21 are fixedly connected to the brush 19 and the fixed base 12, respectively. A second cam 22 is provided inside the fixed base 12. The second cam 22 is rotatably connected to the fixed base 12 through a rotating shaft. The second cam 22 is in contact with the brush 19. During the process of the grinding roller 9 rotating and grinding the material, some of the material adheres to the grinding roller 9. The motor inside the fixed base 12 is started to drive the second cam 22 to rotate. During the rotation of the second cam 22, it intermittently pushes the brush 19. With the help of the slide rod 20 and the second spring 21, the brush 19 sweeps left and right on the fixed base 12 to clean the material adhering to the surface of the grinding roller 9 in contact with it, so as to avoid the adhering material affecting the grinding effect of the grinding roller 9.
[0028] This utility model provides a multi-stage screening chemical grinding mill. The specific working principle is as follows: Material is fed into the grinding chamber 3 through the feed inlet 2 above the mounting box 1, and falls between two sets of grinding rollers 9 under the action of two symmetrically distributed limiting plates 5. The two sets of relatively rotating grinding rollers 9 complete the grinding of the material. The ground material passes through the two sets of grinding rollers 9 and enters the conveying screen belt 14. The rotation of the two sets of first bidirectional lead screws 7 and second bidirectional lead screws 8, in coordination with the grinding chamber 3, allows for adjustment of the distance between the two sets of relatively distributed limiting plates 5, the fixed seat 12, and the grinding rollers 9. The distance between the two grinding rollers 9 in each level of the grinding chamber 3 decreases from large to small, meeting different grinding requirements and standards. During the process of conveying the material to the right, the conveying screen belt 14 activates the motor on the mounting frame 4, driving the rotation of the first cam 18, intermittently pushing the slide 15, and cooperating with the positioning rod 16 and the first spring 17 to cause the fixed frame 13 to drive the conveying screen belt 14 to vibrate, completing the screening of the material. Material that meets the discharge standard of the conveyor belt 14 is discharged to the right along with the conveyor belt 14. Material smaller than the aperture of the conveyor belt 14 falls into the grinding box 3 in the lower level after passing through the conveyor belt 14. During the process of grinding the material by rotating the grinding roller 9, some material adheres to the grinding roller 9. The motor in the fixed base 12 is started to drive the rotation of the second cam 22. During the rotation of the second cam 22, it intermittently pushes the brush 19. With the help of the slide rod 20 and the second spring 21, the brush 19 sweeps left and right on the fixed base 12 to clean the material adhering to the surface of the grinding roller 9 and avoid the adhering material affecting the grinding effect of the grinding roller 9.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-stage sifting chemical grinding machine comprising a mounting box, characterized in that: The mounting box has a feed inlet at the top and multiple sets of equidistantly distributed grinding boxes inside. Each set of grinding boxes has a mounting frame fixedly installed below it. Fixed frames are slidably installed on the multiple sets of mounting frames. A conveyor screen belt is installed on the fixed frames. Two sets of symmetrically distributed fixed seats are slidably installed inside the grinding boxes. Grinding rollers are rotatably installed on both sets of fixed seats. Two sets of first bidirectional lead screws and two sets of second bidirectional lead screws are symmetrically distributed inside the grinding boxes. Two sets of symmetrically distributed positioning rods are installed inside the mounting frames. The fixed frames are slidably connected to the positioning rods through a slide. A brush is installed on the fixed seat, and the brush is in contact with the corresponding grinding roller.
2. The multi-stage screening chemical grinding mill according to claim 1, characterized in that: Two sets of symmetrically distributed limiting plates are slidably installed inside the grinding box. The two sets of limiting plates are respectively set to correspond to the two sets of grinding rollers. Each set of limiting plates has a telescopic plate at its upper end. The two ends of the telescopic plate are respectively fixedly connected to the corresponding limiting plate and the top of the grinding box.
3. The multi-stage screening chemical grinding mill according to claim 1, characterized in that: Both ends of the two sets of first bidirectional lead screws pass through the grinding box and are rotatably connected to the grinding box through bearings. Both ends of the two sets of first bidirectional lead screws pass through the two sets of limiting plates and are threadedly connected to the two sets of limiting plates respectively.
4. The multi-stage screening chemical grinding mill according to claim 1, characterized in that: The two ends of the two sets of second bidirectional lead screws pass through the grinding box and are rotatably connected to the grinding box through bearings. The two ends of the two sets of second bidirectional lead screws pass through the two sets of fixed seats and are threadedly connected to the two sets of fixed seats. The left ends of the two sets of second bidirectional lead screws and the first bidirectional lead screw are all fitted with synchronous pulleys. The grinding box is provided with two sets of synchronous belts, and the two sets of synchronous belts are respectively connected to the corresponding two sets of synchronous pulleys for transmission.
5. A multi-stage screening chemical grinding mill according to claim 1, characterized in that: A first spring is sleeved on the positioning rod. The two ends of the first spring are fixedly connected to the mounting bracket and the slide, respectively. A first cam is provided inside the mounting bracket. The first cam is rotatably connected to the mounting bracket through a rotating shaft. The first cam is in contact with the slide.
6. The multi-stage screening chemical grinding mill according to claim 1, characterized in that: The brush is slidably connected to the fixed base, and a slide rod is fixedly installed inside the fixed base. The brush is slidably sleeved with the slide rod, and a second spring is sleeved on the slide rod. The two ends of the second spring are fixedly connected to the brush and the fixed base, respectively.
7. A multi-stage screening chemical grinding mill according to claim 1, characterized in that: The fixed base is provided with a second cam, which is rotatably connected to the fixed base through a rotating shaft, and the second cam is in contact with the brush.