Preparation device for rubber asphalt

Abstract

The invention relates to the technical field of crushing equipment, and particularly discloses a rubber asphalt preparation device which comprises a preparation cylinder with an inlet and an outlet, a heating plate arranged at the bottom in the preparation cylinder, and a preparation mechanism arranged in the preparation cylinder, the preparation mechanism comprises a rotating shaft, a screening plate, a discharging disc, a plurality of cutters arranged in the circumferential direction of the rotating shaft at equal intervals, a through hole formed in the discharging disc and a driving assembly used for driving the rotating shaft to rotate. The rotating shaft is rotationally connected with the preparation cylinder; the screening plate is connected with the preparation cylinder; the discharging disc is fixedly connected with the rotating shaft, located below the screening plate and attached to the screening plate. The cutter is fixedly connected with the rotating shaft and located above the screening plate. The problem that rubber asphalt cannot be quantitatively discharged through an existing preparation device is solved.

Description

Technical Field

[0001] This invention relates to the field of crushing equipment technology, and specifically to a preparation device for rubber asphalt. Background Art

[0002] Rubberized asphalt is made by first processing waste tires into rubber powder, then combining them according to a certain coarse-fine gradation ratio, adding various high-polymer modifiers, and then fully reacting them with base asphalt under a certain high-temperature condition after thorough mixing. Currently, after the rubberized asphalt is prepared, it needs to be removed from the reactor. However, because molten rubberized asphalt has a certain viscosity, it easily blocks the discharge port on the side wall of the reactor, making it inconvenient for workers to remove the rubberized asphalt.

[0003] To address the aforementioned problems, Chinese Patent Publication No. CN116870852A discloses a rubber asphalt preparation device, comprising a base, a cover, and a reaction vessel. The base has relatively distributed supports on its surface. The reaction vessel is rotatably connected to the supports and connected to a rotating mechanism, which drives the reaction vessel to rotate. The cover is connected to the base via relatively distributed telescopic rods and has a crushing mechanism on it for crushing the rubber asphalt. A heating mechanism is located at the bottom of the reaction vessel. This device heats and melts the rubber asphalt through the heating mechanism at the bottom of the reaction vessel. During the rubber asphalt preparation process, the cover is placed on top, and the crushing mechanism further crushes the rubber asphalt, ensuring thorough melting. When the rubber asphalt preparation is complete, the telescopic rods move the cover upwards, causing the rotating mechanism to rotate the reaction vessel, which then tilts. At this point, the rubber asphalt flows out from the inside of the reaction vessel, facilitating removal by workers.

[0004] The above-mentioned device has the following problems in actual use: During operation, the feeding of rubber asphalt is mainly done manually. Therefore, if a large amount of rubber asphalt is added to the reactor at once, the melting effect of the heating mechanism will be weakened, resulting in low flow efficiency of hot air between the rubber asphalt particles, thus affecting the melting quality. If only a small amount of rubber asphalt is added each time, the melting efficiency will be reduced, and the melting time will be prolonged. Furthermore, if a fixed amount of rubber asphalt is added to the reactor each time, the workload will increase. Over time, workers will become fatigued, making it difficult to control the amount of rubber asphalt added, causing problems for the melting operation. Additionally, it may cause rubber asphalt to fall off, reducing its utilization rate. Summary of the Invention

[0005] This invention provides a preparation apparatus for rubber asphalt to solve the problem that existing preparation apparatuses cannot quantitatively feed rubber asphalt.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a preparation device for rubber asphalt, comprising a preparation cylinder with an inlet and an outlet, a heating plate at the bottom of the preparation cylinder, and a preparation mechanism disposed within the preparation cylinder; the preparation mechanism includes a rotating shaft, a sieve plate, a feeding disc, a plurality of cutters equidistantly arranged along the circumferential direction of the rotating shaft, a through hole on the feeding disc, and a drive assembly for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the preparation cylinder; the sieve plate is connected to the preparation cylinder; the feeding disc is fixedly connected to the rotating shaft, the feeding disc is located below the sieve plate, and the feeding disc is in contact with the sieve plate; the cutters are fixedly connected to the rotating shaft, and the cutters are located above the sieve plate.

[0007] Furthermore, the preparation mechanism also includes auxiliary components; the auxiliary components include an arc-shaped block, a sliding plate, an auxiliary block, a groove on the arc-shaped block, and a moving part for driving the sliding plate to make vertical reciprocating motion; the arc-shaped block is connected to the feeding tray; the sliding plate is slidably connected to the groove; the auxiliary block is fixedly connected to the long plate; a guide is provided on the screening plate; the guide includes a guide cylinder, a guide block, and a first spring; the guide cylinder is fixedly connected to the preparation cylinder; one end of the guide block is slidably connected to the guide cylinder, and the other end of the guide block is fixedly connected to the screening plate; the two ends of the first spring are respectively connected to the guide cylinder and the guide block; the screening plate is located on the movement trajectory of the auxiliary block.

[0008] Furthermore, the auxiliary component also includes an auxiliary part; the auxiliary part includes an auxiliary plate, a plurality of elastic blocks equidistantly arranged along the length of the auxiliary plate, a groove on the auxiliary block, and an auxiliary unit for driving the auxiliary plate to perform vertical reciprocating motion; the auxiliary plate is vertically slidably connected to the groove; the elastic blocks are fixedly connected to the auxiliary plate, and the elastic blocks can slide in and out of the screen holes of the screening plate.

[0009] Furthermore, the auxiliary components also include a linkage unit; the linkage unit includes an arc-shaped guide cylinder, an arc-shaped guide block, and a linkage unit for driving the arc-shaped guide block to reciprocate along the arc length direction of the arc-shaped guide cylinder; the arc-shaped guide cylinder is fixedly connected to the feeding tray, and the arc-shaped guide block is slidably connected to the arc-shaped guide cylinder; the arc-shaped block is fixedly connected to the arc-shaped guide block.

[0010] Furthermore, it also includes a crushing section; the crushing section includes a first connecting block, a short shaft, a crushing shaft, a first gear, a first arc-shaped rack, a belt, and a plurality of crushing blades equidistantly arranged along the circumferential direction of the crushing shaft; the first connecting block is fixedly connected to the rotating shaft; both the crushing shaft and the short shaft are rotatably connected to the first connecting block; the first gear is fixedly connected to the short shaft; the first arc-shaped rack is fixedly connected to the arc-shaped block, and the first arc-shaped rack meshes with the first gear; both ends of the belt are respectively sleeved on the short shaft and the crushing shaft; the crushing blades are fixedly connected to the crushing shaft.

[0011] Furthermore, it also includes a dispersion section disposed on the arc-shaped block; the dispersion section includes a dispersion shaft, a dispersion block, and a power unit for driving the dispersion shaft to reciprocate; the dispersion shaft is rotatably connected to the arc-shaped block; the dispersion block is fixedly connected to the dispersion shaft, and the dispersion block is located below the crushing blade.

[0012] Furthermore, it also includes a diffusion section disposed on the arc-shaped block; the diffusion section includes a slider, a limiting block, an arc-shaped moving block, a plurality of diffusion blocks equidistantly arranged along the arc length direction of the arc-shaped moving block, an arc-shaped groove opened on the arc-shaped block, a limiting hole opened on the limiting block, a driving unit for driving the slider to reciprocate along the arc length direction of the arc-shaped groove, and a motion unit for driving the arc-shaped moving block to perform vertical reciprocating motion; the slider is slidably connected to the arc-shaped groove; the limiting block is fixedly connected to the slider; the arc-shaped moving block is slidably connected to the limiting hole; the diffusion block is fixedly connected to the arc-shaped moving block, and the diffusion block is located below the diffusion block.

[0013] Furthermore, several stirring shafts are provided at equal intervals along the length of the diffuser block; the stirring shafts are fixedly connected to the diffuser block.

[0014] Furthermore, an annular rack is fixedly connected to the inner wall of the preparation cylinder; the moving part includes a rotating shaft, a first cam, a second gear, and a second spring; the rotating shaft is rotatably connected to the arc-shaped block; both the first cam and the second gear are fixedly connected to the rotating shaft; the first cam abuts against the sliding plate; the second gear meshes with the annular rack; and the two ends of the second spring are respectively connected to the sliding plate and the slide groove.

[0015] Furthermore, the auxiliary unit includes an auxiliary shaft, a first rack, a third gear, a second cam, a side plate, a third spring, and a side hole on the auxiliary block; the auxiliary shaft is rotatably connected to the slide plate; the first rack is fixedly connected to the arc-shaped block; the third gear and the second cam are both fixedly connected to the auxiliary shaft; the third gear meshes with the first rack; the side hole communicates with the groove, the side plate is slidably connected to the side hole, the side plate is fixedly connected to the auxiliary plate, and the second cam abuts against the side plate; the two ends of the third spring are respectively connected to the auxiliary plate and the groove.

[0016] The principle and advantages of this scheme are: The rubber asphalt on the screening plate is cut by a cutter. During the cutting process, the rubber asphalt is cut into several rubber particles, which are then screened by the screening plate. Rubber particles with the correct particle size fall into the bottom of the preparation cylinder for heating and melting. Rubber particles with the incorrect particle size remain on the screening plate and are cut again by the cutter until the rubber particles have the correct particle size.

[0017] During the screening of rubber asphalt by the screening plate, the feed tray rotates synchronously with the rotating shaft, thereby changing the position of the through holes communicating with the screening plate, and thus continuously changing the feeding position of the rubber particles. This movement promotes the uniform distribution of rubber particles at the bottom of the preparation cylinder, thereby enhancing the melting effect of the heating plate on the rubber asphalt and improving the melting efficiency of the heating plate.

[0018] By changing the connection position between the through hole and the feeding tray, rubber granules can be intermittently and quantitatively dropped into the bottom of the preparation cylinder. On the one hand, this achieves small-batch, intermittent feeding, ensuring that the heating plate can fully and thoroughly melt the rubber granules during the melting process. On the other hand, the moderate number of rubber granules falling ensures that hot air can circulate efficiently between the molten rubber granules, thereby accelerating the melting speed and further enhancing the melting effect while shortening the melting time.

[0019] The vertical reciprocating motion of the auxiliary block causes the screening plate to vibrate. During this vibration, the rubber particles clogged in the screen holes undergo vertical reciprocating motion, preventing them from becoming trapped and enhancing the screening effect and efficiency. Furthermore, the vibration also alters the position of the rubber asphalt accumulated on the screen, resulting in a more even and comprehensive distribution, further enhancing the cutting effect of the cutter and improving cutting efficiency.

[0020] During the vertical reciprocating motion of the auxiliary block, the elastic block can also reciprocate vertically relative to the auxiliary block. During this vertical reciprocating motion, the elastic block exerts a certain force and can extend into the screen hole. Consequently, the elastic block pushes the rubber particles blocking the screen hole vertically, eventually causing them to fall onto the screening plate. This effectively clears the rubber particles blocking the screen hole and prevents them from becoming stuck inside.

[0021] The arc-shaped block drives the auxiliary block to reciprocate along the arc length of the arc-shaped guide cylinder. As the rubber particles move from top to bottom, the auxiliary block can initially break them up, causing them to fall into the effective range of the crusher. This prepares the rubber particles for secondary crushing, thereby enhancing the effect of the crusher and improving its crushing efficiency.

[0022] After being broken up by the auxiliary blocks, the rubber granules are further crushed by the crushing blades, reducing their particle size even further and achieving a finer processing of the crushed rubber granules. This further reduction in particle size enhances the heating and melting effect of the heating plate, improving the efficiency of the heating and melting process.

[0023] After the rubber particles are crushed a second time, the dispersion blocks can break them up, further promoting the distribution of rubber particles within the preparation cylinder. This reduces the probability of rubber asphalt accumulation, improves the storage effect of the preparation cylinder, and ensures that the rubber particles are evenly distributed within the preparation cylinder.

[0024] After the rubber particles are dispersed by the dispersion block, the diffusion block reciprocates along the arc length of the arc groove and reciprocates vertically, giving the diffusion block a stronger force and a patting effect. The diffusion block can further diffuse the rubber particles, promoting more comprehensive and uniform dispersion of the rubber particles in the preparation cylinder, thus ensuring the dispersion effect of the rubber particles and improving the dispersion efficiency of the rubber particles.

[0025] During the movement of the diffuser block, the stirring shaft moves synchronously. During the circumferential movement of the stirring shaft, the molten rubber particles are continuously stirred, enhancing the melting effect and accelerating the melting efficiency. Simultaneously, during the movement of the stirring shaft along the arc length of the curved groove and during its vertical reciprocating motion, the stirring shaft can carve several grooves within the molten rubber particles. These grooves increase the contact area between the molten rubber particles and the hot air, further shortening the melting time and improving the quality of the melt. Furthermore, the grooves widen the flow range of the hot air, allowing it to flow efficiently within the molten rubber particles, thereby enhancing the melting effect and improving melting efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the preparation cylinder in an embodiment of a rubber asphalt preparation device of the present invention.

[0027] Figure 2 for Figure 1 A schematic diagram of the internal structure of the preparation cylinder.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 for Figure 2 A partial structural diagram.

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0031] Figure 6 for Figure 4 A schematic diagram of the partial structure from a top-down view.

[0032] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0033] Figure 8 for Figure 6 Enlarged view of point D in the middle.

[0034] Figure 9 for Figure 6Enlarged view of point E in the middle.

[0035] Figure 10 for Figure 6 A schematic diagram of the structure from the front view.

[0036] Figure 11 for Figure 10 Enlarged view of point F in the middle.

[0037] Figure 12 for Figure 4 A partial structural diagram viewed from below.

[0038] Figure 13 for Figure 12 A magnified view of point G in the middle. Detailed Implementation

[0039] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1. Preparation cylinder; 2. Heating plate; 3. Rotating shaft; 4. Screening plate; 5. Feeding tray; 6. Motor housing; 7. Guide tube; 8. Arc-shaped block; 9. Slide plate; 10. Auxiliary block; 11. Guide cylinder; 12. Guide block; 13. Auxiliary plate; 14. Elastic block; 15. Arc-shaped guide cylinder; 16. Arc-shaped guide block; 17. First connecting block; 18. Short shaft; 19. Crushing shaft; 20. First gear; 21. First arc-shaped rack; 22. Belt; 23. Crushing blade; 24. Dispersion shaft; 25. Dispersion block; 26. Slider; 27. Limiting block; 28. Diffusion block; 29. ​​Stirring shaft; 30. Annular rack; 31. Rotating shaft; 22. First... Cam 32, second gear 33, second spring 34, auxiliary shaft 35, first rack 36, third gear 37, second cam 38, side plate 39, second connecting block 40, linkage shaft 41, fourth gear 42, fifth gear 43, second arc rack 44, fixed block 45, second rack 46, power shaft 47, sixth gear 48, incomplete bevel gear 49, first bevel gear 50, second bevel gear 51, arc groove 52, vertical block 53, pressing block 54, arc plate 55, sixth spring 56, cutter 57, third arc rack 58, arc moving block 59, third rack 60.

[0040] The embodiment is basically as shown in the attached Figure 1 , 2 As shown in numbers 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13: An embodiment of the present invention provides a preparation device for rubber asphalt, including a preparation cylinder 1 with an inlet and an outlet. A sealing cap is installed at the inlet, and a conduit 7 is installed at the outlet. A heating plate 2 is provided at the bottom of the preparation cylinder 1. The device also includes a preparation mechanism disposed within the preparation cylinder 1. The preparation mechanism includes a rotating shaft 3, a sieve plate 4, a feeding tray 5, a plurality of cutters 57 equidistantly arranged along the circumferential direction of the rotating shaft 3, a through hole on the feeding tray 5, and a drive assembly for rotating the rotating shaft 3. The rotating shaft 3 is rotatably connected to the preparation cylinder 1. The sieve plate 4 is connected to the inner wall of the preparation cylinder 1. The feeding tray 5 is fixedly connected to the rotating shaft 3 and is located below and in contact with the sieve plate 4. The cutters 57 are fixedly connected to the rotating shaft 3 and are located above the sieve plate 4. The through hole is fan-shaped.

[0041] The drive assembly includes a motor housing 6 and a motor; the motor housing 6 is fixedly connected to the outer wall of the bottom of the preparation cylinder 1, the motor is located inside the preparation cylinder 1, and the motor is fixedly connected to the motor housing 6; the rotating shaft 3 extends into the motor housing 6, and the output shaft of the motor is fixedly connected to the rotating shaft 3.

[0042] The preparation mechanism also includes auxiliary components; the auxiliary components include an arc-shaped block 8, a sliding plate 9, an auxiliary block 10, a groove on the arc-shaped block 8, and a moving part for driving the sliding plate 9 to perform vertical reciprocating motion; the arc-shaped block 8 is connected to the feeding tray 5; the sliding plate 9 is slidably connected to the groove; the auxiliary block 10 is fixedly connected to the long plate; the screening plate 4 is provided with guide members; there are two guide members, which are symmetrically arranged on both sides of the screening plate 4 along the radial direction; the guide members include a guide cylinder 11, a guide block 12, and a first spring; the guide cylinder 11 is fixedly connected to the inner wall of the preparation cylinder 1; one end of the guide block 12 is slidably connected to the inner wall of the guide cylinder 11, and the other end of the guide block 12 is fixedly connected to the screening plate 4; the first spring is located inside the guide cylinder 11, and the two ends of the first spring are respectively connected to the guide block 12 and the inner wall of the guide cylinder 11; the screening plate 4 is located on the movement trajectory of the auxiliary block 10.

[0043] The auxiliary assembly also includes an auxiliary section; the auxiliary section includes an auxiliary plate 13, a plurality of elastic blocks 14 equidistantly arranged along the length of the auxiliary plate 13, a groove on the top of the auxiliary block 10, and an auxiliary unit for driving the auxiliary plate 13 to perform vertical reciprocating motion; the auxiliary plate 13 is vertically slidably connected to the groove; the elastic blocks 14 are fixedly connected to the auxiliary plate 13, the free end of the elastic block 14 is higher than the top of the auxiliary block 10, and the elastic block 14 can slide in and out of the screen holes of the screening plate 4.

[0044] The auxiliary components also include a linkage unit; the linkage unit includes an arc-shaped guide cylinder 15, an arc-shaped guide block 16, and a linkage unit for driving the arc-shaped guide block 16 to reciprocate along the arc length direction of the arc-shaped guide cylinder 15; the arc-shaped guide cylinder 15 is fixedly connected to the bottom of the feed tray 5, and the arc-shaped guide block 16 is slidably connected to the inner wall of the arc-shaped guide cylinder 15; the arc-shaped block 8 is fixedly connected to the top of the arc-shaped guide block 16.

[0045] It also includes a crushing section; the crushing section includes a first connecting block 17, a short shaft 18, a crushing shaft 19, a first gear 20, a first arc-shaped rack 21, a belt 22, and a plurality of crushing blades 23 equidistantly arranged along the circumferential direction of the crushing shaft 19; the first connecting block 17 is fixedly connected to the rotating shaft 3; both the crushing shaft 19 and the short shaft 18 are rotatably connected to the first connecting block 17; the crushing shaft 19 is located below the slide plate 9; the first gear 20 is fixedly connected to the short shaft 18; the first arc-shaped rack 21 is fixedly connected to the arc-shaped block 8, and the first arc-shaped rack 21 meshes with the first gear 20; the two ends of the belt 22 are respectively sleeved on the short shaft 18 and the crushing shaft 19; the crushing blades 23 are fixedly connected to the crushing shaft 19.

[0046] It also includes a dispersion section disposed on the arc-shaped block 8; the dispersion section includes a dispersion shaft 24, a dispersion block 25, and a power unit for driving the dispersion shaft 24 to reciprocate; the dispersion shaft 24 is rotatably connected to the arc-shaped block 8; the dispersion block 25 is fixedly connected to the dispersion shaft 24, and the dispersion block 25 is located below the crushing blade 23.

[0047] It also includes a diffusion section disposed on the arc-shaped block 8; the diffusion section includes a slider 26, a limiting block 27, an arc-shaped moving block 59, a plurality of diffusion blocks 28 equidistantly arranged along the arc length direction of the arc-shaped moving block 59, an arc-shaped groove 52 opened on the arc-shaped block 8, a limiting hole opened on the limiting block 27, a driving unit for driving the slider 26 to reciprocate along the arc length direction of the arc-shaped groove 52, and a motion unit for driving the arc-shaped moving block 59 to reciprocate vertically; the slider 26 is slidably connected to the arc-shaped groove 52; the limiting block 27 is fixedly connected to the bottom of the slider 26; the arc-shaped moving block 59 is slidably connected to the limiting hole, and the arc-shaped moving block 59 can reciprocate vertically along the length direction of the limiting hole; the diffusion block 28 is fixedly connected to the arc-shaped moving block 59, and the diffusion block 28 is located below the dispersion block 25.

[0048] Several stirring shafts 29 are provided at equal intervals along the length of the diffuser block 28; the stirring shafts 29 are fixedly connected to the diffuser block 28.

[0049] An annular rack 30 is fixedly connected to the inner wall of the preparation cylinder 1; the moving part includes a rotating shaft 31, a first cam 32, a second gear 33, and a second spring 34; the rotating shaft 31 is rotatably connected to the arc-shaped block 8; the first cam 32 and the second gear 33 are both fixedly connected to the rotating shaft 31; the first cam 32 abuts against the slide plate 9; the second gear 33 meshes with the annular rack 30; the second spring 34 is located in the side groove, and the two ends of the second spring 34 are respectively connected to the slide plate 9 and the groove.

[0050] The auxiliary unit includes an auxiliary shaft 35, a first rack 36, a third gear 37, a second cam 38, a side plate 39, a third spring, and a side hole on the auxiliary block 10. The auxiliary shaft 35 is rotatably connected to the slide plate 9. The first rack 36 is fixedly connected to the arc-shaped block 8. The third gear 37 and the second cam 38 are both fixedly connected to the auxiliary shaft 35. The third gear 37 meshes with the first rack 36. The side hole communicates with the groove. The side plate 39 is slidably connected to the side hole. The side plate 39 is fixedly connected to the auxiliary plate 13. The second cam 38 abuts against the side plate 39. The side plate 39 can perform vertical reciprocating motion along the length of the side hole. The two ends of the third spring are respectively connected to the auxiliary plate 13 and the groove.

[0051] The linkage unit includes a second connecting block 40, a linkage shaft 41, a fourth gear 42, a fifth gear 43, a second arc-shaped rack 44, a fourth spring, and a third arc-shaped rack 58 symmetrically arranged on both sides of the preparation cylinder 1 along the radial direction. The second connecting block 40 is fixedly connected to the rotating shaft 3. The linkage shaft 41 is rotatably connected to the second connecting block 40. The fourth gear 42 and the fifth gear 43 are both fixedly connected to the linkage shaft 41. The second arc-shaped rack 44 is fixedly connected to the arc-shaped guide block 16, and the second arc-shaped rack 44 meshes with the fourth gear 42. The third arc-shaped rack 58 is fixedly connected to the inner wall of the preparation cylinder 1, and the fifth gear 43 meshes with the third arc-shaped rack 58. The fourth spring is located inside the arc-shaped guide cylinder 15, and the two ends of the fourth spring are respectively connected to the arc-shaped guide block 16 and the inner wall of the arc-shaped guide cylinder 15.

[0052] The power unit includes a fixed block 45, a second rack 46, a power shaft 47, a sixth gear 48, an incomplete bevel gear 49, a first bevel gear 50, and a second bevel gear 51. The two ends of the fixed block 45 are fixedly connected to the slide plate 9 and the second rack 46, respectively. The power shaft 47 is rotatably connected to the arc-shaped block 8. The sixth gear 48 and the incomplete bevel gear 49 are both fixedly connected to the power shaft 47. The sixth gear 48 meshes with the second rack 46. The first bevel gear 50 and the second bevel gear 51 are both fixedly connected to the dispersion shaft 24. The incomplete bevel gear 49 is located between the first bevel gear 50 and the second bevel gear 51. Both the first bevel gear 50 and the second bevel gear 51 can mesh with the incomplete bevel gear 49. When the incomplete bevel gear 49 meshes with the first bevel gear 50, the incomplete bevel gear 49 does not mesh with the second bevel gear 51. When the incomplete bevel gear 49 meshes with the second bevel gear 51, the incomplete bevel gear 49 does not mesh with the first bevel gear 50.

[0053] The driving unit is the fifth spring; the fifth spring is located in the arc groove 52, and the two ends of the fifth spring are connected to the arc groove 52 and the slider 26 respectively; the first cam 32 abuts against the slider 26.

[0054] The motion unit includes a vertical block 53, a third rack 60, a lower pressure block 54, an arc-shaped plate 55, and a sixth spring 56. The vertical block 53 is fixedly connected to the arc-shaped block 8. The third rack 60 is vertically slidably connected to the vertical block 53. The sixth gear 48 is located between the second rack 46 and the third rack 60, and the third rack 60 meshes with the sixth gear 48. The movement direction of the second rack 46 is opposite to the movement direction of the third rack 60. The lower pressure block 54 is fixedly connected to the third rack 60. The arc-shaped plate 55 is fixedly connected to the arc-shaped moving block 59. The lower pressure block 54 is located above the arc-shaped plate 55 and abuts against the arc-shaped plate 55. The arc-shaped plate 55 is located on the movement trajectory of the lower pressure block 54. The sixth spring 56 is located in the limiting hole, and the two ends of the sixth spring 56 are respectively connected to the arc-shaped moving block 59 and the limiting hole.

[0055] Specific implementation process: Open the sealed cover and place the rubber asphalt into the preparation cylinder 1. After the rubber asphalt has been placed, close the sealed cover and start the motor and heating plate 2. During the motor's rotation, the output shaft of the motor drives the rotating shaft 3 to rotate. During the rotation of the rotating shaft 3, the cutter 57 rotates synchronously. During the rotation of the cutter 57, the rubber asphalt is cut into several rubber particles, which are then sieved through the screening plate 4. Rubber particles with the correct particle size fall through the screening plate 4 into the bottom of the preparation cylinder 1 for heating and melting; rubber particles with the incorrect particle size remain on the screening plate 4 and are cut again by the cutter 57 until the rubber particles have the correct particle size.

[0056] During the screening of rubber asphalt by the screening plate 4, the feeding disc 5 rotates synchronously with the rotating shaft 3, thereby changing the position of the through hole communicating with the screening plate 4, which in turn causes the feeding position of the rubber particles to change continuously. Through the above movement, the rubber particles are evenly distributed at the bottom of the preparation cylinder 1, thereby enhancing the melting effect of the heating plate 2 on the rubber asphalt and improving the melting efficiency of the heating plate 2.

[0057] Meanwhile, as the relative positions of the through hole and the feeding plate 5 continuously change, rubber particles can intermittently and quantitatively fall to the bottom of the preparation cylinder 1. On the one hand, this achieves small-batch, intermittent feeding, thereby ensuring that the heating plate 2 can fully and thoroughly melt the rubber particles during the melting process. On the other hand, because the amount of rubber particles falling is moderate, it ensures that hot air can circulate efficiently between the molten rubber particles, thereby accelerating the melting speed of the rubber particles, further enhancing the melting effect of the rubber particles, and shortening the melting time.

[0058] During the rotation of the feeding disc 5, the engagement of the fifth gear 43 with the third arc-shaped rack 58 drives the linkage shaft 41 to rotate. During the rotation of the linkage shaft 41, the fourth gear 42 rotates synchronously. During the rotation of the fourth gear 42, since the fourth gear 42 engages with the second arc-shaped rack 44, the second arc-shaped rack 44 drives the arc-shaped guide block 16 to move along the arc length direction of the arc-shaped guide cylinder 15, compressing the fourth spring. When the fifth gear 43 no longer engages with the third arc-shaped rack 58, the fourth spring drives the arc-shaped guide block 16 to reset. Therefore, the arc-shaped guide block 16 can reciprocate along the arc length direction of the arc-shaped guide cylinder 15.

[0059] During the movement of the arc-shaped guide block 16, the arc-shaped block 8 moves synchronously. During the movement of the arc-shaped block 8, the rotating shaft 31 moves synchronously. During the movement of the rotating shaft 31, the second gear 33 meshes with the ring rack 30, thereby driving the rotating shaft 31 to rotate. During the rotation of the rotating shaft 31, the first cam 32 rotates synchronously.

[0060] During the rotation of the first cam 32, when the protrusion of the first cam 32 abuts against the slide plate 9, the slide plate 9 moves vertically upward, and the second spring 34 is compressed; when the protrusion of the first cam 32 no longer abuts against the slide plate 9, the slide plate 9 returns to its original position under the action of the second spring 34, and the slide plate 9 moves vertically downward. Therefore, the slide plate 9 can perform vertical reciprocating motion.

[0061] The slide plate 9 reciprocates vertically, and the auxiliary block 10 moves synchronously. The vertical reciprocating motion of the auxiliary block 10 causes the screening plate 4 to vibrate. During this vibration, the rubber particles clogged in the screen holes undergo vertical reciprocating motion, preventing them from becoming trapped and enhancing the screening effect and efficiency. Furthermore, the vibration also alters the position of the rubber asphalt accumulated on the screening plate 4, resulting in a more even and comprehensive distribution of the rubber asphalt, further enhancing the cutting effect of the cutter 57 and improving cutting efficiency.

[0062] During the vertical reciprocating motion of the skateboard 9, the auxiliary shaft 35 moves synchronously. During the movement of the auxiliary shaft 35, it rotates through the meshing of the third gear 37 with the first rack 36. During the rotation of the auxiliary shaft 35, the second cam 38 rotates synchronously. During the rotation of the second cam 38, when the protrusion of the second cam 38 abuts against the side plate 39, the side plate 39 drives the auxiliary plate 13 to move vertically upward, stretching the third spring; when the protrusion of the second cam 38 no longer abuts against the side plate 39, the auxiliary plate 13 returns to its original position under the action of the third spring. Therefore, the auxiliary plate 13 can perform vertical reciprocating motion.

[0063] Through the aforementioned movement, that is, during the vertical reciprocating motion of the auxiliary block 10, the elastic block 14 can also perform vertical reciprocating motion relative to the auxiliary block 10. During the vertical reciprocating motion of the elastic block 14, the elastic block 14 has a certain force, and the elastic block 14 can extend into the screen hole. Consequently, the elastic block 14 will push the rubber particles blocked in the screen hole to move vertically, and finally fall onto the screen plate 4, thereby cleaning the rubber particles blocking the screen hole and ensuring that the rubber particles will not block the screen hole.

[0064] Furthermore, the auxiliary block 10 is driven by the arc-shaped block 8 to reciprocate along the arc length of the arc-shaped guide cylinder 15. As the rubber particles move from top to bottom, the auxiliary block 10 can initially break them apart, causing them to fall into the effective range of the crusher 23. This prepares the rubber particles for secondary crushing, thereby enhancing the effect of the crusher 23 and improving its crushing efficiency.

[0065] During the movement of the arc-shaped block 8, the first arc-shaped rack 21 moves synchronously. During the movement of the first arc-shaped rack 21, the meshing of the first arc-shaped rack 21 with the first gear 20 drives the short shaft 18 to rotate. During the rotation of the short shaft 18, the crushing shaft 19 is driven to rotate by the belt 22. During the rotation of the crushing shaft 19, the crushing blade 23 rotates synchronously.

[0066] During the rotation of the crusher blade 23, it can perform secondary crushing on the rubber particles broken up by the auxiliary block 10, further reducing the particle size and thus achieving fine processing of the crushed rubber particles. Through this movement, the reduced particle size further enhances the heating and melting effect of the rubber particles by the heating plate 2, improving the efficiency of heating and melting.

[0067] During the vertical reciprocating motion of the slide plate 9, the slide plate 9 drives the second rack 46 to move synchronously via the fixed block 45. During the movement of the second rack 46, the meshing of the second rack 46 with the sixth gear 48 causes the power shaft 47 to rotate. During the rotation of the power shaft 47, the incomplete bevel gear 49 rotates synchronously. During the rotation of the incomplete bevel gear 49, the meshing of the incomplete bevel gear 49 with the first bevel gear 50 and the second bevel gear 51 in sequence causes the dispersion shaft 24 to oscillate intermittently. During the movement of the dispersion shaft 24, the dispersion block 25 moves synchronously.

[0068] During the movement of the dispersion block 25, the dispersion block 25 can disperse the secondary crushed rubber particles, further promoting the distribution of rubber particles within the preparation cylinder 1, thereby reducing the probability of rubber asphalt accumulation, improving the storage effect of the preparation cylinder 1, and ensuring that the rubber particles can be evenly distributed within the preparation cylinder 1.

[0069] During the rotation of the first cam 32, when the first cam 32 abuts against the slider 26, the slider 26 moves along the arc length direction of the arc groove 52, and the fifth spring is compressed; when the protrusion of the first cam 32 no longer abuts against the slider 26, the slider 26 returns to its original position under the action of the fifth spring. Therefore, the slider 26 can reciprocate along the length direction of the arc groove 52. During the movement of the slider 26, the arc-shaped moving block 59 moves synchronously. During the movement of the arc-shaped moving block 59, the arc plate 55 moves synchronously.

[0070] During the movement of the arc-shaped plate 55, the third rack 60 can perform vertical reciprocating motion through the meshing of the sixth gear 48 and the third rack 60. During the movement of the third rack 60, the third rack 60, in conjunction with the sixth spring 56, can drive the arc-shaped plate 55 to perform vertical reciprocating motion. Therefore, while the arc-shaped moving block 59 reciprocates along the arc length of the arc-shaped groove 52, it can also perform vertical reciprocating motion. During the movement of the arc-shaped moving block 59, the diffuser block 28 moves synchronously.

[0071] Therefore, after the rubber particles are dispersed by the dispersion block 25, the diffusion block 28 moves back and forth along the arc length of the arc groove 52 and the arc block 8 moves back and forth vertically, so that the diffusion block 28 has a stronger force and a patting effect. The diffusion block 28 can further diffuse the rubber particles, promote the more comprehensive and uniform dispersion of the rubber particles in the preparation cylinder 1, that is, ensure the dispersion effect of the rubber particles and improve the dispersion efficiency of the rubber particles.

[0072] During the movement of the diffuser block 28, the stirring shaft 29 moves synchronously. During the circumferential movement of the stirring shaft 29, the molten rubber particles are continuously stirred, enhancing the melting effect and accelerating the melting efficiency. Simultaneously, during the movement of the stirring shaft 29 along the arc length of the arc-shaped groove 52 and during its vertical reciprocating motion, the stirring shaft 29 can carve several grooves within the molten rubber particles. These grooves increase the contact area between the molten rubber particles and the hot air, further shortening the melting time and improving the quality of the melted rubber particles. Furthermore, the grooves widen the flow range of the hot air, allowing it to flow efficiently within the molten rubber particles, thereby enhancing the melting effect of the hot air and improving the melting efficiency.

[0073] In summary, this method achieves efficient crushing of rubber asphalt, controls the amount of rubber particles fed, and evenly distributes the rubber particles at the bottom of the preparation cylinder 1, ensuring that the heating plate 2 can more comprehensively and thoroughly melt the rubber asphalt during the heating and melting process.

[0074] After the rubber asphalt preparation is completed, the rubber asphalt can be taken out along the conduit 7 to prepare for further processing of the rubber asphalt.

[0075] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A preparation device for rubber asphalt, comprising a preparation cylinder with an inlet and an outlet, a heating plate being provided at the bottom of the preparation cylinder, characterized in that: It also includes a preparation mechanism arranged in the preparation cylinder; the preparation mechanism includes a rotating shaft, a screening plate, a discharge tray, a plurality of cutters arranged equidistantly along the circumferential direction of the rotating shaft, a through hole opened on the discharge tray, and a driving component for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the preparation cylinder; the screening plate is connected to the preparation cylinder; the discharge tray is fixedly connected to the rotating shaft, the discharge tray is located below the screening plate, and the discharge tray is in contact with the screening plate; the cutter is fixedly connected to the rotating shaft, and the cutter is located above the screening plate.

2. The preparation device for rubber asphalt according to claim 1, characterized in that: The preparation mechanism also includes an auxiliary component; the auxiliary component includes an arc block, a slide plate, an auxiliary block, a slide groove opened on the arc block, and a moving part for driving the slide plate to perform vertical reciprocating motion; the arc block is connected to the unloading tray; the slide plate is slidably connected to the slide groove; the auxiliary block is fixedly connected to the long plate; a guide member is provided on the screening plate; the guide member includes a guide cylinder, a guide block, and a first spring; the guide cylinder is fixedly connected to the preparation cylinder; one end of the guide block is slidably connected to the guide cylinder, and the other end of the guide block is fixedly connected to the screening plate; the two ends of the first spring are respectively connected to the guide cylinder and the guide block; the screening plate is located on the motion trajectory of the auxiliary block.

3. The preparation device for rubber asphalt according to claim 2, characterized in that: The auxiliary component also includes an auxiliary part; the auxiliary part includes an auxiliary plate, a plurality of elastic blocks equidistantly arranged along the length direction of the auxiliary plate, a groove opened on the auxiliary block, and an auxiliary unit for driving the auxiliary plate to perform vertical reciprocating motion; the auxiliary plate is vertically slidably connected to the groove; the elastic block is fixedly connected to the auxiliary plate, and the elastic block can slide in and out of the sieve hole of the screening plate.

4. The preparation device for rubber asphalt according to claim 3, characterized in that: The auxiliary component also includes a linkage part; the linkage part includes an arc-shaped guide cylinder, an arc-shaped guide block, and a linkage unit for driving the arc-shaped guide block to reciprocate along the arc length direction of the arc-shaped guide cylinder; the arc-shaped guide cylinder is fixedly connected to the unloading tray, and the arc-shaped guide block is slidingly connected to the arc-shaped guide cylinder; the arc-shaped block is fixedly connected to the arc-shaped guide block.

5. The preparation device for rubber asphalt according to claim 4, characterized in that: It also includes a crushing part; the crushing part includes a first connecting block, a short shaft, a crushing shaft, a first gear, a first arc-shaped rack, a belt, and a plurality of crushing knives arranged equidistantly along the circumferential direction of the crushing shaft; the first connecting block is fixedly connected to the rotating shaft; the crushing shaft and the short shaft are both rotatably connected to the first connecting block; the first gear is fixedly connected to the short shaft; the first arc-shaped rack is fixedly connected to the arc-shaped block, and the first arc-shaped rack is meshed with the first gear; the two ends of the belt are respectively sleeved on the short shaft and the crushing shaft; the crushing knife is fixedly connected to the crushing shaft.

6. The preparation device for rubber asphalt according to claim 5, characterized in that: It also includes a dispersion part arranged on the arc block; the dispersion part includes a dispersion shaft, a dispersion block, and a power unit for driving the dispersion shaft to reciprocate; the dispersion shaft is rotationally connected to the arc block; the dispersion block is fixedly connected to the dispersion shaft, and the dispersion block is located below the crushing knife.

7. The preparation device for rubber asphalt according to claim 6, characterized in that: It also includes a diffusion part arranged on the arc block; the diffusion part includes a slider, a limit block, an arc moving block, a plurality of diffusion blocks equidistantly arranged along the arc length direction of the arc moving block, an arc groove opened on the arc block, a limit hole opened on the limit block, a driving unit for driving the slider to reciprocate along the arc length direction of the arc groove, and a motion unit for driving the arc moving block to reciprocate vertically; the slider is slidably connected to the arc groove; the limit block is fixedly connected to the slider; the arc moving block is slidably connected to the limit hole; the diffusion block is fixedly connected to the arc moving block, and the diffusion block is located below the dispersion block.

8. The device for preparing rubber asphalt according to claim 7, characterized in that: A plurality of stirring shafts are equidistantly arranged along the length direction of the diffusion block; the stirring shafts are fixedly connected to the diffusion block.

9. The preparation device for rubber asphalt according to claim 8, characterized in that: An annular rack is fixed on the inner wall of the preparation cylinder; the moving part includes a rotating shaft, a first cam, a second gear, and a second spring; the rotating shaft is rotatably connected to the arc block; the first cam and the second gear are both fixed to the rotating shaft; the first cam is against the slide plate; the second gear is meshed with the annular rack; and the two ends of the second spring are respectively connected to the slide plate and the slide groove.

10. The preparation device for rubber asphalt according to claim 9, characterized in that: The auxiliary unit includes an auxiliary shaft, a first rack, a third gear, a second cam, a side plate, a third spring, and a side hole opened on the auxiliary block; the auxiliary shaft is rotatably connected to the slide plate; the first rack is fixedly connected to the arc block; the third gear and the second cam are both fixedly connected to the auxiliary shaft; the third gear is meshed with the first rack; the side hole is communicated with the groove, the side plate is slidably connected to the side hole, the side plate is fixedly connected to the auxiliary plate, and the second cam is abutted against the side plate; the two ends of the third spring are respectively connected to the auxiliary plate and the groove.

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