A crushing and screening device for kaolin production

Abstract

The present invention relates to the technical field of kaolin production, and discloses a crushing and screening device for kaolin production, including a processing box. A crushing roller is rotatably arranged inside the processing box. A feeding groove is formed inside the processing box. A screen is arranged at the bottom end of the feeding groove. A first discharge port is arranged at the bottom end of the screen. A second discharge port is arranged below the screen. A rotating groove is formed on the outer surface of the processing box. A worm is rotatably arranged inside the rotating groove. A worm gear is engaged with the worm. An annular sliding groove is formed on the inner surface of the worm gear. A sliding rod is slidably arranged inside the annular sliding groove. A connecting rod is fixed at the end of the sliding rod. A ramming rod is arranged on the connecting rod. In the technical solution, when the crushing roller crushes the kaolin material, the large kaolin ore can be mashed by the ramming rod, so that the mashed kaolin blocks can enter the crushing roller for crushing more quickly, thereby improving the crushing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of kaolin production, and specifically relates to a crushing and screening device for kaolin production. Background Technique

[0002] Kaolin is a non-metallic mineral, which is a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Pure kaolin is white, delicate, and soft, with good physical and chemical properties such as plasticity and refractoriness. After kaolin is mined, in order to facilitate the use of kaolin, it is necessary to crush and screen the kaolin material so that the kaolin material is crushed into powder for subsequent use.

[0003] When the kaolin material is crushed, since there are relatively large pieces of kaolin ore in the kaolin material, when passing through the crushing roller, it cannot quickly enter the crushing roller for crushing, and due to its large volume, it may roll on the crushing roller for a period of time. Using the rotation of the crushing roller, the large pieces of kaolin ore are gradually crushed from the outside, and the time for processing large pieces of kaolin ore will become longer. At this time, the kaolin material above will be accumulated, which will not only reduce the feeding rate, but may seriously cause blockage, thus affecting the crushing efficiency. Summary of the Invention

[0004] The present invention provides a crushing and screening device for kaolin production. When the crushing roller crushes the kaolin material, the ram moves reciprocally left and right, which can crush large pieces of kaolin ore, so that the crushed kaolin blocks can enter the crushing roller for crushing more quickly, solving the problem mentioned in the above background technique that when large pieces of kaolin ore are crushed, they cannot quickly enter the crushing roller for crushing, and due to their large volume, they may roll on the crushing roller for a period of time, resulting in a longer time for processing large pieces of kaolin ore, causing the kaolin material above to be accumulated, which will not only reduce the feeding rate, but may seriously cause blockage, thus affecting the crushing efficiency.

[0005] The present invention provides the following technical solution: A crushing and screening device for kaolin production, including a processing box. The top of the processing box is connected and provided with a feeding hopper. A crushing roller is rotatably arranged inside the processing box. A feeding trough is opened inside the processing box. A screen is arranged at the bottom end of the feeding trough. A first discharge port is arranged at the bottom end of the screen. A second discharge port is arranged below the screen;

[0006] A rotating groove is opened on the outer surface of the processing box. A worm is rotatably arranged inside the rotating groove. A worm gear is engaged with the worm. The worm gear is rotatably connected with the processing box. An annular sliding groove is opened on the inner surface of the worm gear. A sliding rod is slidably arranged inside the annular sliding groove. One end of the sliding rod is fixed with a connecting rod. A ram is arranged on the connecting rod. The ram crushes the kaolin through left and right reciprocating motion.

[0007] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, an installation frame is fixed on the outer surface of the treatment box, a servo motor is fixed on the installation frame, a rotating shaft fixedly connected to the output end of the servo motor is fixed on the crushing roller, a transmission gear is fixed on the circumference of the rotating shaft, and two groups of the crushing roller, the rotating shaft and the transmission gear are correspondingly arranged.

[0008] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a first pulley is fixed on the circumference of the rotating shaft, a second pulley is fixed at the end of the worm, and a transmission belt is connected between the first pulley and the second pulley.

[0009] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a first track groove is formed in the inner wall of the annular chute, a first sliding protrusion is fixed at the end of the sliding rod, the first sliding protrusion is slidably arranged in the first track groove, and the first track groove includes a horizontally arranged part, a first inclined part and a second inclined part which are sequentially communicated.

[0010] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a movable groove is formed in the treatment box, a longitudinal plate is fixed on the upper surface of the connecting rod, a hollow sleeve is fixed on the surface of the longitudinal plate, a top rod is slidably connected inside the hollow sleeve, a first hydraulic oil tank is formed in the treatment box, a first piston plate fixedly connected to the top rod is slidably arranged inside the first hydraulic oil tank, a second hydraulic oil tank is formed in the ram rod, an oil delivery pipe is communicated between the second hydraulic oil tank and the first hydraulic oil tank, a second piston plate is slidably arranged inside the second hydraulic oil tank, a core rod is elastically connected to the surface of the second piston plate, a first chute for the core rod to slide is formed in the ram rod, a ram column is slidably arranged at the end of the ram rod, and the core rod drives the ram column to perform telescopic movement in the ram rod by sliding in the first chute.

[0011] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a first spring is fixed between the inner wall of the second hydraulic oil tank and the second piston plate, a moving groove for the oil delivery pipe to slide is formed in the treatment box, a guiding groove is formed in the core rod, a limiting ball is fixed at the end of the ram column, the limiting ball is slidably arranged in the guiding groove, and the ram column is slidably connected to the core rod.

[0012] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a first rotating groove is formed inside the connecting rod, a first torsion spring is arranged on the inner wall of the first rotating groove, the end of the ramming rod is rotatably arranged in the first rotating groove, and the end of the ramming rod is fixedly connected with the first torsion spring. A wedge-shaped block is fixed on the lower surface of the ramming rod, and a resisting rod for resisting the wedge-shaped block is fixed on the inner wall of the movable groove.

[0013] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a straight rod is slidably arranged inside the processing box. One end of the straight rod is fixedly connected with the first piston plate, and the other end of the straight rod is fixed with a third piston plate. A third hydraulic oil groove for the third piston plate to slide is formed inside the processing box. A fourth piston plate is slidably arranged at the other end of the third hydraulic oil groove. A transmission rod is fixed on the fourth piston plate, and the other end of the transmission rod is fixed with a convex plate. A second sliding groove for the convex plate to slide is formed inside the processing box. A third sliding groove is formed inside the processing box. A moving plate is slidably arranged in the third sliding groove. A third spring is arranged between the top of the moving plate and the top of the third sliding groove. A knocking column is elastically connected in the third sliding groove. The moving plate drives the knocking column to knock on the inner wall of the processing box by sliding in the third sliding groove.

[0014] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, a second spring is fixed inside the third sliding groove. The bottom end of the knocking column is fixedly connected with the second spring. A limiting groove for the knocking column to slide is formed inside the processing box. A second track groove is formed on the moving plate. A second sliding protrusion is fixed on the outer surface of the knocking column, and the second sliding protrusion is slidably arranged in the second track groove.

[0015] As an alternative solution of the crushing and screening device for kaolin production according to the present invention, the second track groove includes a first sliding part, a knocking part and a second sliding part which are sequentially communicated. A rotating plate is elastically arranged at the connection between the second sliding part and the first sliding part.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the crushing and screening device for kaolin production, when the crushing roller rotates to crush the kaolin material, the worm drives the worm wheel to rotate, so that the slide bar slides inside the annular slide groove, and the slide bar drives the first sliding protrusion to slide in the first track groove, so that the slide bar can reciprocate left and right, and the slide bar drives the tamping rod to reciprocate left and right, so that the tamping rod can continuously crush the large pieces of kaolin ore above the crushing roller, so that the large pieces of kaolin ore are crushed into smaller kaolin blocks, and the crushed kaolin blocks can be quickly crushed by the crushing roller, thereby improving the feeding rate, reducing the blockage caused by the accumulation of kaolin materials, and is conducive to improving the crushing efficiency.

[0018] 2. In the crushing and screening device for kaolin production, when the tamping rod reciprocates left and right, the hydraulic oil can be transported back and forth inside the first hydraulic oil tank and the second hydraulic oil tank, thereby driving the core rod to reciprocate left and right. When the core rod reciprocates left and right, it can drive the tamping column to reciprocate on the tamping rod. When the tamping rod is inserted into the interior of the kaolin mine, the tamping column can extend from the tamping rod, and the tamping column is used to apply an outward thrust from both sides of the tamping rod, so that the kaolin mine is more convenient to crack and crush. In the process of the tamping column extending from the tamping rod, the wedge block contacts the abutment rod, so that the tamping rod can rotate a certain angle, thereby driving the tamping column to rotate a certain angle, increasing the force-bearing surface of the tamping column and the kaolin mine, further improving the possibility of the kaolin mine being crushed, and increasing the crushing effect.

[0019] 3. In the crushing and screening device for kaolin production, when the tamping rod reciprocates left and right and drives the first piston plate to reciprocate left and right, the first piston plate drives the straight rod to reciprocate left and right, the straight rod reciprocates left and right and drives the movable plate to reciprocate up and down, the movable plate reciprocates up and down and drives the second sliding protrusion to slide in the second track groove, so that the second sliding protrusion drives the knocking column to reciprocate left and right, so that the knocking column can knock on the inner wall of the processing box, and the knocking can not only facilitate the crushing of the pounded kaolin material, but also facilitate the discharge of the kaolin material in the feed hopper, thereby improving the discharge rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a cross-sectional view of the internal structure of the present invention.

[0022] Figure 3 For the present invention Figure 2 Structural cross-section view of the worm gear part.

[0023] Figure 4 It is a top view of the structure of the worm gear part of the present invention.

[0024] Figure 5 For the present invention Figure 2 Enlarged view of location A in the present invention.

[0025] Figure 6 For the present invention Figure 2 Enlarged view of location B in the present invention.

[0026] Figure 7 For the present invention Figure 6 Enlarged view of location C in the present invention.

[0027] Figure 8 Schematic structural view of the ram rod and the knocking column parts of the present invention.

[0028] Figure 9 For the present invention Figure 8 Enlarged structural view of the knocking column part in the present invention.

[0029] Figure 10 For the present invention Figure 9 Right-side structural sectional view in the present invention.

[0030] Figure 11 Schematic structural view of the second track groove on the moving plate of the present invention.

[0031] Figure 12 Schematic structural view of the wedge block and the abutting rod parts in the present invention.

[0032] Figure 13 Schematic structural view of the servo motor and the transmission gear parts in the present invention.

[0033] Figure 14 For the present invention Figure 11 Enlarged view of location D in the present invention.

[0034] In the figure: 1. Processing box; 2. Feeding hopper; 3. Crushing roller; 4. Material conveying trough; 5. Screen; 6. First discharge opening; 7. Second discharge opening; 8. Rotating groove; 9. Worm; 10. Worm gear; 11. Annular chute; 12. Slide bar; 13. Connecting rod; 14. Ramming rod; 15. Mounting bracket; 16. Servo motor; 17. Rotating shaft; 18. Driving gear; 19. First pulley; 20. Second pulley; 21. Transmission belt; 22. First track groove; 221. Horizontal part; 222. First inclined part; 223. Second inclined part; 23. First sliding protrusion; 24. Movable groove; 25. Vertical plate; 26. Hollow sleeve; 27. Jacking rod; 28. First hydraulic oil tank; 29. First piston plate; 30. Second hydraulic oil tank; 31. Oil delivery pipe; 32. Second piston plate; 33. Core rod; 34. First chute; 35. Ramming column; 36. First spring; 37. Moving groove; 38. Guide groove; 39. Limiting ball; 40. First rotating groove; 41. First torsion spring; 42. Wedge block; 43. Contact rod; 44. Straight rod; 45. Third piston plate; 46. Third hydraulic oil tank; 47. Fourth piston plate; 48. Transmission rod; 49. Convex plate; 50. Knocking column; 51. Second spring; 52. Limiting groove; 53. Second track groove; 531. First sliding part; 532. Knocking part; 533. Second sliding part; 534. Rotating plate; 54. Second sliding protrusion; 55. Second chute; 56. Third chute; 57. Moving plate; 58. Third spring; 59. Second rotating groove; 60. Rotating rod; 61. Second torsion spring; 62. Contact block; 63. Limiting rod. Specific embodiments

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1. Please refer to Figures 1 - 14 , a crushing and screening device for kaolin production, including a processing box 1. A feeding hopper 2 is communicated and arranged at the top of the processing box 1. A crushing roller 3 is rotatably arranged inside the processing box 1. A material conveying trough 4 is opened inside the processing box 1. A screen 5 is arranged at the bottom end of the material conveying trough 4. A first discharge opening 6 is arranged at the bottom end of the screen 5. A second discharge opening 7 is arranged below the screen 5;

[0037] The outer surface of the processing box 1 is provided with a rotating groove 8. A worm 9 is rotatably arranged inside the rotating groove 8. A worm gear 10 is engaged with the worm 9. The worm gear 10 is rotatably connected to the processing box 1. An annular sliding groove 11 is provided on the inner surface of the worm gear 10. A sliding rod 12 is slidably arranged in the annular sliding groove 11. A connecting rod 13 is fixed to the end of the sliding rod 12. A pounding rod 14 is arranged on the connecting rod 13. The pounding rod 14 crushes kaolin through left-right reciprocating motion;

[0038] An installation frame 15 is fixed to the outer surface of the processing box 1. A servo motor 16 is fixed to the installation frame 15. A rotating shaft 17 fixedly connected to the output end of the servo motor 16 is fixed to the crushing roller 3. A transmission gear 18 is fixed on the circumference of the rotating shaft 17. The crushing roller 3, the rotating shaft 17 and the transmission gear 18 are all correspondingly arranged in two groups;

[0039] A first pulley 19 is fixed on the circumference of the rotating shaft 17. A second pulley 20 is fixed to the end of the worm 9. A transmission belt 21 is connected between the first pulley 19 and the second pulley 20;

[0040] A first track groove 22 is provided on the inner wall of the annular sliding groove 11. A first sliding protrusion 23 is fixed to the end of the sliding rod 12. The first sliding protrusion 23 is slidably arranged in the first track groove 22. The first track groove 22 includes a horizontally arranged portion 221, a first inclined portion 222 and a second inclined portion 223 which are sequentially communicated;

[0041] In this technical solution, a slope matching the feed hopper 2 is provided at the top of the processing box 1 for feeding materials. When crushing and screening kaolin, first, the massive kaolin ore is fed into the feed hopper 2. The kaolin ore to be crushed is sent to the crushing roller 3 through the feed hopper 2 (as Figure 13 shown). The rotating shaft 17 is driven to rotate by the servo motor 16. The rotating shaft 17 drives the crushing roller 3 to rotate. While the rotating shaft 17 is rotating, the transmission gear 18 is driven to rotate. By engaging the transmission gears 18 at the ends of the two rotating shafts 17, when the rotating shaft 17 connected to the servo motor 16 rotates, the two transmission gears 18 can be driven to rotate, so that the two crushing rollers 3 rotate in opposite directions, thereby completing the crushing work of kaolin. After the kaolin is crushed, the crushed materials fall onto the screen 5 through the material conveying groove 4. The qualified powdered kaolin can pass through the screen 5 and be discharged through the second discharge port 7. The unqualified massive materials cannot pass through the screen 5 and are screened out by the screen 5 and discharged from the first discharge port 6 along the screen 5, thereby completing the screening of the crushed kaolin;

[0042] When the servo motor 16 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the first pulley 19 to rotate. The first pulley 19 drives the second pulley 20 to rotate through the transmission belt 21. The second pulley 20 drives the worm 9 to rotate, and the worm 9 drives the worm gear 10 to rotate. The rotation of the worm gear 10 causes the slide bar 12 to slide within the annular chute 11. The slide bar 12 drives the first sliding protrusion 23 to slide within the first track groove 22. As Figure 4 shown, when the first sliding protrusion 23 slides from the horizontal portion 221 to the first inclined portion 222 and slides along the first inclined portion 222, the first sliding protrusion 23 drives the slide bar 12 to move to the right. As Figure 5 and Figure 8 shown, when the slide bar 12 moves to the right, it drives the connecting rod 13 to move to the right. The connecting rod 13 drives the ramming rod 14 to move to the right, causing the ramming rod 14 to extend from inside the processing box 1 and crush the large pieces of kaolin ore above the crushing roller 3 into smaller kaolin pieces. When the first sliding protrusion 23 slides from the first inclined portion 222 to the second inclined portion 223 and slides along the second inclined portion 223, the first sliding protrusion 23 drives the slide bar 12 to move leftward to reset, thereby causing the ramming rod 14 to move leftward to reset and retract the ramming rod 14 into the processing box 1. Repeating the above process, when the worm gear 10 rotates, the slide bar 12 can perform a reciprocating left-right movement, causing the ramming rod 14 to perform a reciprocating left-right movement, so that the ramming rod 14 continuously crushes the large pieces of kaolin ore.

[0043] In this technical solution, the ramming rods 14 are symmetrically arranged on both sides of the processing box 1. The ramming rods 14 on both sides extend from inside the processing box 1 or retract into the processing box 1 synchronously, and several groups of ramming rods 14 are provided, which can more conveniently crush the large pieces of kaolin ore and improve the working efficiency.

[0044] Embodiment 2: When the ramming rod 14 performs the crushing work, due to the soft characteristics of the kaolin ore, when the ramming rod 14 is inserted into the interior of the kaolin ore, the kaolin ore is inserted by the ramming rod 14, and a pit or a hole may be formed, and the kaolin ore will not be crushed and cracked, so that the large pieces of kaolin ore cannot be fully crushed into smaller kaolin pieces. To solve this problem, this embodiment is an improvement based on Embodiment 1. Specifically, please refer to Figures 1 - 14, an activity slot 24 is provided inside the processing box 1. A longitudinal plate 25 is fixed to the upper surface of the connecting rod 13. A hollow sleeve 26 is fixed to the surface of the longitudinal plate 25. A push rod 27 is slidably connected inside the hollow sleeve 26. A first hydraulic oil tank 28 is provided inside the processing box 1. A first piston plate 29 fixedly connected to the push rod 27 is slidably arranged inside the first hydraulic oil tank 28. A second hydraulic oil tank 30 is provided inside the ram rod 14. A oil delivery pipe 31 is communicated between the second hydraulic oil tank 30 and the first hydraulic oil tank 28. A second piston plate 32 is slidably arranged inside the second hydraulic oil tank 30. A core rod 33 is elastically connected to the surface of the second piston plate 32. A first sliding groove 34 for the core rod 33 to slide is provided inside the ram rod 14. A ram column 35 is slidably arranged at the end of the ram rod 14. The core rod 33 drives the ram column 35 to perform telescopic movement inside the ram rod 14 by sliding in the first sliding groove 34;

[0045] A first spring 36 is fixed between the inner wall of the second hydraulic oil tank 30 and the second piston plate 32. A moving groove 37 for the oil delivery pipe 31 to slide is provided inside the processing box 1. A guiding groove 38 is provided inside the core rod 33. A limiting ball 39 is fixed to the end of the ram column 35. The limiting ball 39 is slidably arranged inside the guiding groove 38, and the ram column 35 is slidably connected to the core rod 33;

[0046] A first rotating groove 40 is provided inside the connecting rod 13. A first torsion spring 41 is arranged on the inner wall of the first rotating groove 40. The end of the ram rod 14 is rotatably arranged inside the first rotating groove 40, and the end of the ram rod 14 is fixedly connected to the first torsion spring 41. A wedge-shaped block 42 is fixed to the lower surface of the ram rod 14. A resisting rod 43 for resisting the wedge-shaped block 42 is fixed to the inner wall of the activity slot 24.

[0047] In this technical solution, when the first sliding protrusion 23 slides along the first inclined portion 222 and the sliding rod 12 moves to the right, as Figure 5 shown, the connecting rod 13 drives the longitudinal plate 25 to move to the right. The longitudinal plate 25 drives the hollow sleeve 26 to move to the right. When the ram rod 14 extends out of the processing box 1 but does not fully extend, first, the push rod 27 slides inside the hollow sleeve 26 until the end of the push rod 27 abuts against the longitudinal plate 25. Then, when the ram rod 14 continues to extend out of the processing box 1, at this time, the top plate abuts against the longitudinal plate 25, prompting the push rod 27 to move to the right. The push rod 27 moves to the right to fill the hydraulic oil inside the first hydraulic oil tank 28 into the second hydraulic oil tank 30 through the oil delivery pipe 31. The oil delivery pipe 31 is set as a flexible pipe and is not in a straightened state. The oil delivery pipe 31 can move a certain distance along with the ram rod 14. The second hydraulic oil tank 30 is filled with hydraulic oil to push the second piston plate 32 to move to the right. The second piston plate 32 moves to the right to push the core rod 33 to move to the right in the first sliding groove 34. At the same time, the first spring 36 is compressed and stores energy, as Figure 7As shown, when the core rod 33 moves to the right along the first slide groove 34, due to the interference between the limiting ball 39 and the guide groove 38, the limiting ball 39 will slide along the guide groove 38, and the limiting ball 39 drives the tamping column 35 to move, so that the tamping column 35 extends outward from the inside of the tamping rod 14, so that the tamping column 35 extends outward and inserts into the large piece of kaolin ore. The tamping column 35 provides a thrust to the large piece of kaolin ore on both sides of the tamping rod 14, so that the large piece of kaolin ore is more convenient to crack, thereby increasing the possibility of crushing the large piece of kaolin ore.

[0048] When the tamping column 35 extends from the inside of the tamping rod 14, the tamping rod 14 drives the wedge block 42 to move to the abutment rod 43, and the wedge block 42 contacts the abutment rod 43. When the tamping rod 14 continues to move to the right, the abutment rod 43 abuts the wedge block 42, causing the wedge block 42 to deflect. The wedge block 42 drives the tamping rod 14 to deflect by a certain angle. At the same time, the first torsion spring 41 stores force, and the tamping rod 14 deflects by a certain angle to drive the extended tamping column 35 to rotate. The rotation increases the force-bearing surface between the tamping column 35 and the large piece of kaolin ore, so that the tamping column 35 can more conveniently pound the large piece of kaolin ore, further improving the possibility of crushing the large piece of kaolin ore.

[0049] When the tamping rod 14 moves to the left for reset, the wedge block 42 moves to the left first, the wedge block 42 loses the resistance of the resistance rod 43, and the first torsion spring 41 releases force, causing the tamping rod 14 to rotate in the opposite direction and reset. At the same time, the connecting rod 13 drives the longitudinal plate 25 to move to the left and reset, and the longitudinal plate 25 drives the hollow sleeve 26 to move to the left and reset. The hollow sleeve 26 moves to the left, causing the top plate to lose the resistance of the longitudinal plate 25, and the first spring 36 releases force to push the second piston plate 32 to move to the left and reset, and the hydraulic oil inside the second hydraulic oil groove 30 is filled into the first hydraulic oil groove 28, so that the first piston plate 29 moves to the left and resets, and drives the top rod 27 to move to the left and reset. When the first spring 36 releases force and drives the second piston plate 32 to move to the left, it will drive the core rod 33 to move to the left and reset. The core rod 33 moves to the left and resets, and drives the tamping column 35 to be retracted into the tamping rod 14, and then the tamping rod 14 continues to move to the left and reset until the reset is completed.

[0050] In the third embodiment, before the large pieces of kaolin ore are crushed, the kaolin ore materials above will pile up. When the large pieces of kaolin ore are crushed, there will be a certain force between the kaolin ore materials due to the accumulation, which will cause the kaolin ore materials above to fail to be discharged in time, and the crushed large pieces of kaolin ore cannot be crushed faster by the crushing roller 3, thereby reducing the crushing efficiency. In view of this problem, this embodiment is an improvement made on the basis of the second embodiment. For details, please refer to Figures 1 - 14, a straight rod 44 is slidably arranged inside the processing box 1. One end of the straight rod 44 is fixedly connected to the first piston plate 29, and a third piston plate 45 is fixed to the other end of the straight rod 44. A third hydraulic oil groove 46 for the third piston plate 45 to slide is formed inside the processing box 1. A fourth piston plate 47 is slidably arranged at the other end of the third hydraulic oil groove 46. A transmission rod 48 is fixed to the fourth piston plate 47, and a convex plate 49 is fixed to the other end of the transmission rod 48. A second chute 55 for the convex plate 49 to slide is formed inside the processing box 1. A third chute 56 is formed inside the processing box 1. A moving plate 57 is slidably arranged in the third chute 56. A third spring 58 is arranged between the top of the moving plate 57 and the top of the third chute 56. A knocking column 50 is elastically connected in the third chute 56. The moving plate 57 drives the knocking column 50 to knock on the inner wall of the processing box 1 by sliding in the third chute 56;

[0051] A second spring 51 is fixed inside the third chute 56. The bottom end of the knocking column 50 is fixedly connected to the second spring 51. A limiting groove 52 for the knocking column 50 to slide is formed inside the processing box 1. A second track groove 53 is formed on the moving plate 57. A second sliding protrusion 54 is fixed on the outer surface of the knocking column 50. The second sliding protrusion 54 is slidably arranged in the second track groove 53;

[0052] The second track groove 53 includes a first sliding part 531, a knocking part 532 and a second sliding part 533 which are connected in sequence. A rotating plate 534 is elastically arranged at the connection between the second sliding part 533 and the first sliding part 531.

[0053] In this technical solution, when the first piston plate 29 moves to the right, it drives the straight rod 44 to move to the right. The rightward movement of the straight rod 44 drives the third piston plate 45 to move to the right. The rightward movement of the third piston plate 45 pushes the hydraulic oil inside the third hydraulic oil groove 46 to move, so that the hydraulic oil pushes the fourth piston plate 47 to move upward. The upward movement of the fourth piston plate 47 drives the convex plate 49 to move upward in the second chute 55 through the transmission rod 48. The convex plate 49 drives the moving plate 57 to slide upward in the third chute 56. The upward movement of the moving plate 57 compresses the third spring 58, so that the third spring 58 stores energy. The upward movement of the moving plate 57 causes the second sliding protrusion 54 to slide in the second track groove 53. When the second sliding protrusion 54 slides along the first sliding part 531, the second sliding protrusion 54 drives the knocking column 50 to move to the left and compresses the second spring 51, so that the second spring 51 stores energy. When the second sliding protrusion 54 slides to the knocking part 532, the second spring 51 releases its force, so that the second sliding protrusion 54 instantly slides along the knocking part 532 to the second sliding part 533, thereby causing the second sliding protrusion 54 to drive the knocking column 50 to knock on the inner wall of the processing box 1;

[0054] When the first piston plate 29 moves leftward to reset, the first piston plate 29 drives the straight rod 44 to move leftward to reset. The third spring 58 releases force, pushing the moving plate 57 to move downward to reset within the third sliding groove 56, and simultaneously driving the convex plate 49, the fourth piston plate 47 and the third piston plate 45 to reset. At this time, the second sliding protrusion 54 slides along the second sliding portion 533. When the second sliding protrusion 54 slides to the rotating plate 534, the rotating plate 534 can only rotate leftward in the state as shown in Figure 11 , and cannot rotate rightward. Thus, after the rotating plate 534 rotates leftward, it can automatically reset to the state as shown in Figure 11 . Therefore, when the second sliding protrusion 54 slides to the rotating plate 534, the second sliding protrusion 54 abuts against the rotating plate 534, causing the rotating plate 534 to rotate leftward until the second sliding protrusion 54 resets. Then, the rotating plate 534 loses the abutment of the second sliding protrusion 54 and resets to the state as shown in Figure 11 . After that, every time the moving plate 57 moves upward, due to the abutment of the rotating plate 534, the second sliding protrusion 54 can only slide along the first sliding portion 531, thereby completing the reciprocating knocking work of the knocking column 50 and improving the blanking rate;

[0055] In this technical solution, as shown in Figure 14 , a second rotating groove 59 is formed inside the moving plate 57. A rotating rod 60 is fixed to the end of the rotating plate 534. The rotating rod 60 is rotatably arranged inside the second rotating groove 59. A second torsion spring 61 is sleeved on the circumference of the rotating rod 60. One end a of the second torsion spring 61 abuts against one side of the rotating plate 534, and the other end b of the second torsion spring 61 is fixedly connected to the inner wall of the second rotating groove 59. Moreover, a resisting block 62 is fixedly arranged inside the second rotating groove 59, and a limiting rod 63 that abuts against the resisting block 62 is fixed to the rotating rod 60; as shown in Figure 14 , by arranging the resisting block 62, the rotating plate 534 can only rotate rightward in the state as shown in Figure 14 . When rotating leftward, the limiting rod 63 abuts against the resisting block 62, making it impossible to rotate leftward. When the rotating plate 534 rotates rightward, the rotating plate 534 abuts against one end a of the second torsion spring 61, causing the second torsion spring 61 to store energy. When the rotating plate 534 loses the abutment, the second torsion spring 61 releases energy, causing the rotating plate 534 to reset.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0057] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A crushing and screening device for kaolin production, comprising a processing box (1), characterized in that: The top of the processing box (1) is connected to a feed hopper (2), a crushing roller (3) is rotatably arranged inside the processing box (1), a feeding trough (4) is provided inside the processing box (1), a screen (5) is provided at the bottom end of the feeding trough (4), a first discharge port (6) is provided at the bottom end of the screen (5), and a second discharge port (7) is provided below the screen (5); The outer surface of the processing box (1) is provided with a rotating groove (8), a worm (9) is rotatably arranged inside the rotating groove (8), a worm wheel (10) is meshed on the worm (9), the worm wheel (10) is rotatably connected with the processing box (1), an annular sliding groove (11) is provided on the inner surface of the worm wheel (10), a sliding rod (12) is slidably arranged in the annular sliding groove (11), a connecting rod (13) is fixed at the end of the sliding rod (12), a tamping rod (14) is arranged on the connecting rod (13), and the tamping rod (14) tamps the kaolin by reciprocating left and right motions; The processing box (1) is provided with a movable groove (24) inside, a longitudinal plate (25) is fixed on the upper surface of the connecting rod (13), a hollow sleeve (26) is fixed on the surface of the longitudinal plate (25), a push rod (27) is slidably connected inside the hollow sleeve (26), a first hydraulic oil groove (28) is provided inside the processing box (1), a first piston plate (29) fixedly connected to the push rod (27) is slidably provided inside the first hydraulic oil groove (28), a second hydraulic oil groove (30) is provided inside the ramming rod (14), and the second hydraulic oil groove ( An oil delivery pipe (31) is provided between the first hydraulic oil groove (28) and the second hydraulic oil groove (30); a second piston plate (32) is slidably provided inside the second hydraulic oil groove (30); a core rod (33) is elastically connected to the surface of the second piston plate (32); a first slide groove (34) for sliding of the core rod (33) is provided inside the ramming rod (14); a ramming column (35) is slidably provided at the end of the ramming rod (14); the core rod (33) drives the ramming column (35) to perform telescopic action inside the ramming rod (14) by sliding in the first slide groove (34).

2. The crushing and screening device for kaolin production according to claim 1, characterized in that: A mounting frame (15) is fixed on the outer surface of the processing box (1), a servo motor (16) is fixed on the mounting frame (15), a rotating shaft (17) fixedly connected to the output end of the servo motor (16) is fixed on the crushing roller (3), a transmission gear (18) is fixed on the circumference of the rotating shaft (17), and two groups of the crushing roller (3), the rotating shaft (17) and the transmission gear (18) are correspondingly arranged.

3. The crushing and screening device for kaolin production according to claim 2, characterized in that: A first belt pulley (19) is fixed on the circumference of the rotating shaft (17), a second belt pulley (20) is fixed on the end of the worm (9), and a transmission belt (21) is connected between the first belt pulley (19) and the second belt pulley (20).

4. The crushing and screening device for kaolin production according to claim 3, characterized in that: A first track groove (22) is provided on the inner wall of the annular slide groove (11), a first sliding protrusion (23) is fixed to the end of the slide rod (12), the first sliding protrusion (23) is slidably arranged in the first track groove (22), and the first track groove (22) includes a horizontal portion (221), a first inclined portion (222) and a second inclined portion (223) which are connected in sequence.

5. The crushing and screening device for kaolin production according to claim 4, characterized in that: A first spring (36) is fixed between the inner wall of the second hydraulic oil groove (30) and the second piston plate (32); a movable groove (37) for the oil delivery pipe (31) to slide is provided inside the processing box (1); a guide groove (38) is provided inside the core rod (33); a limiting ball (39) is fixed at the end of the tamping column (35); the limiting ball (39) is slidably arranged in the guide groove (38), and the tamping column (35) is slidably connected to the core rod (33).

6. The crushing and screening device for kaolin production according to claim 5, characterized in that: A first rotating groove (40) is provided inside the connecting rod (13), a first torsion spring (41) is arranged in the first rotating groove (40), the end of the ramming rod (14) is rotatably arranged in the first rotating groove (40), the first torsion spring (41) is sleeved on the circumference of the ramming rod (14), and one end of the first torsion spring (41) is fixedly connected to the inner wall of the first rotating groove (40), the other end of the first torsion spring (41) is fixedly connected to the ramming rod (14), a wedge block (42) is fixed on the lower surface of the ramming rod (14), and a resistance rod (43) for resisting the wedge block (42) is fixed on the inner wall of the movable groove (24).

7. The crushing and screening device for kaolin production according to claim 6, characterized in that: A straight rod (44) is slidably arranged inside the processing box (1), one end of the straight rod (44) is fixedly connected to the first piston plate (29), and a third piston plate (45) is fixedly arranged at the other end of the straight rod (44). A third hydraulic oil groove (46) for sliding the third piston plate (45) is provided inside the processing box (1), and a fourth piston plate (47) is slidably arranged at the other end of the third hydraulic oil groove (46), and a transmission rod (48) is fixed on the fourth piston plate (47), and a convex plate (49) is fixedly arranged at the other end of the transmission rod (48). A second slide groove (55) for the convex plate (49) to slide is provided inside the sorting box (1), and a third slide groove (56) is provided inside the processing box (1). A movable plate (57) is slidably provided inside the third slide groove (56), and a third spring (58) is provided between the top of the movable plate (57) and the top of the third slide groove (56). A knocking column (50) is elastically connected inside the third slide groove (56), and the movable plate (57) drives the knocking column (50) to knock on the inner wall of the processing box (1) by sliding in the third slide groove (56).

8. The crushing and screening device for kaolin production according to claim 7, characterized in that: A second spring (51) is fixed inside the third sliding groove (56), the bottom end of the knocking column (50) is fixedly connected to the second spring (51), a limiting groove (52) for the knocking column (50) to slide is provided inside the processing box (1), a second track groove (53) is provided on the movable plate (57), a second sliding protrusion (54) is fixed on the outer surface of the knocking column (50), and the second sliding protrusion (54) is slidably set in the second track groove (53).

9. The crushing and screening device for kaolin production according to claim 8, characterized in that: The second track groove (53) comprises a first sliding part (531), a knocking part (532) and a second sliding part (533) which are connected in sequence, and a rotating plate (534) is elastically provided at the connection between the second sliding part (533) and the first sliding part (531).

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