Raw material screening device for stone paper processing

Abstract

The invention discloses a raw material screening device for stone paper processing, and relates to the technical field of stone paper processing. Comprising multiple L-shaped plates, the outer sides of the L-shaped plates are fixedly connected with fixing rings, the L-shaped plates are fixedly connected with the outer side of a rotating shaft, the multiple fixing rings are arranged, the multiple L-shaped plates are connected through the multiple fixing rings, the tops of the fixing rings are fixedly connected with fixing rods, and the bottoms of the fixing rods are rotationally connected with rollers. According to the raw material screening device for stone paper processing, raw materials are separated through a gap between an L-shaped plate and a fixing ring, so that the raw materials are preliminarily screened, meanwhile, a rotating shaft drives a fixing rod to rotate in a ring groove, a roller is stressed to drive a frame to move upwards, and the frame vibrates up and down along with rotation of the rotating shaft; and the combined movement of rotation and vibration enables the raw materials to continuously roll and jump in the frame, so that the retention time of particles in gaps of the frame is reduced, and the probability that sieve pores are blocked is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stone paper processing, and particularly to a raw material screening device for stone paper processing. Background Art

[0002] With the increasingly serious global environmental problems, people's awareness of environmental protection has been continuously improved, and there is an urgent need for an environmentally friendly material that can replace traditional paper. The emergence of stone paper is precisely to meet this demand. It uses inorganic minerals as the main raw material, does not rely on forest resources, and reduces environmental damage from the source. Stone paper, also called stone-based paper, is made by grinding the main component of stone, "calcium carbonate", into ultra-fine particles. That is, it uses ground stone powder as the main raw material, plus polyethylene and binder. This kind of paper is waterproof, strong and not easy to burn. Most importantly, it does not require cutting down trees for papermaking and is very environmentally friendly.

[0003] In the existing screening equipment, during the screening process, the mesh holes of the filter plate are easily blocked by large particle raw materials, and maintenance personnel need to regularly replace the filter plate or dredge the mesh holes. During this process, the screening machinery needs to be shut down, which affects the screening production efficiency. Summary of the Invention

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A raw material screening device for stone paper processing, including a housing, a motor is fixedly connected to the middle of the bottom of the housing, and a rotating shaft is fixedly connected to the output end of the motor;

[0005] A buffer assembly, the buffer assembly is fixedly installed on the top of the housing;

[0006] A screening assembly, the screening assembly is arranged inside the housing, and the screening assembly is located below the buffer assembly;

[0007] A fine sieve assembly, the fine sieve assembly is fixedly installed inside the housing, and the fine sieve assembly is located below the fine sieve assembly;

[0008] Among them, the housing includes an outer shell, a support plate is fixedly connected to the bottom of the outer shell, the bottom of the support plate is fixedly connected to the motor, the output end of the motor penetrates the support plate, an annular groove is opened inside the outer shell, a convex block is fixedly connected to the inner wall of the annular groove, the number of convex blocks is multiple, and multiple convex blocks are evenly distributed inside the annular groove. An outlet is opened on the outer side of the outer shell close to the support plate;

[0009] Preferably, the screening assembly includes L-shaped plates. There are multiple L-shaped plates. A fixing ring is fixedly connected to the outer side of each L-shaped plate. Multiple L-shaped plates and multiple fixing rings form a framework. The raw material is added into the interior of the screening assembly through the top of the housing. The motor is externally powered and operates. The motor drives the rotation of the rotating shaft, and thus the rotating shaft drives the L-shaped plates and the fixing rings to rotate, causing the raw material to rotate inside the framework, so that the raw material detaches through the gap between the L-shaped plates and the fixing rings, thereby preliminarily screening the raw material. At the same time, the rotating shaft drives the fixing rod to rotate inside the annular groove. The roller at the bottom of the fixing rod contacts and is squeezed by the convex block inside the annular groove. The roller drives the framework to move upward under the force. As the rotating shaft rotates, the framework vibrates up and down. The combined movement of rotation and vibration makes the raw material continuously tumble and jump inside the framework, reducing the residence time of the particles at the gaps of the framework and reducing the probability of the sieve holes being blocked, which can ensure the continuity and stability of the screening process. The L-shaped plates are fixedly connected to the outer side of the rotating shaft. There are multiple fixing rings. Multiple L-shaped plates are connected by multiple fixing rings. A fixing rod is fixedly connected to the top of the fixing ring. A roller is rotatably connected to the bottom of the fixing rod.

[0010] Preferably, a compression spring is fixedly connected to the interior of the housing. One end of the compression spring away from the housing is fixedly connected to a filter plate. The filter plate is located between the screening assembly and the fine screening assembly. The raw material inside the screening assembly leaves the screening assembly and falls onto the top of the filter plate. By providing the filter plate and the compression spring, the filter plate plays a buffering role, which can slow down the falling speed of the material and avoid the material directly impacting the components of the fine screening assembly, thereby protecting the components of the fine screening assembly and extending the service life of the fine screening assembly. The filter plate is slidably connected to the interior of the housing. The rotating shaft penetrates the filter plate. A scraper is fixedly connected to the outer side of the rotating shaft. There are multiple scrapers, and the multiple scrapers are evenly distributed around the rotating shaft.

[0011] Preferably, a sliding groove is formed in the inner wall of the housing. The filter plate is slidably connected to the inner wall of the housing through the sliding groove. A limiting plate is fixedly connected to the outer side of the sliding groove. The compression spring is located inside the sliding groove and the limiting plate. A through groove is formed in one side of the housing close to the annular groove. The through groove is perpendicular to the annular groove. There are multiple through grooves, and the multiple through grooves are evenly distributed inside the housing. A supporting cylinder is fixedly connected to the bottom edge of the supporting plate. The motor is located inside the supporting cylinder. A through hole is formed in the outer side of the housing. The through hole and the fine screening assembly are on the same horizontal plane.

[0012] There are four fixing rods, and the four fixing rods are evenly distributed around the fixing ring. The roller is located at the end of the fixing rod away from the fixing ring. An inclined edge is formed at the top of the fixing rod.

[0013] Preferably, the buffer assembly includes a blanking hopper. A fixing plate is fixedly connected to the bottom edge of the blanking hopper. There are multiple fixing plates, which are located inside the through groove. A side plate is fixedly connected to the outside of the fixing plate. The raw material is placed inside the blanking hopper. The motor is externally powered and operates. The motor drives the rotation of the rotating shaft, and the rotating shaft drives the L-shaped plate and the fixing ring to rotate. Thus, the rotating shaft drives the fixing rod to rotate. The fixing rod rotates inside the annular groove. The hypotenuse on the fixing rod contacts and exerts pressure on the extension plate inside the annular groove. The extension plate is stressed and drives the fixing plate to move upward inside the through groove. Subsequently, the rotating shaft drives the fixing rod away from the extension plate. Under the action of the mutual suction force between the extension plate and the convex block, the extension plate drives the blanking hopper to move downward, and the blanking hopper vibrates up and down. The blanking hopper can evenly distribute the raw material at the feed inlet of the subsequent screening assembly, avoiding the concentration of the raw material in a certain local area. Thus, the raw material can be evenly spread on the screening assembly, making full use of the area of the screening assembly and improving the screening efficiency and quality. The side plates are symmetrically arranged on the outside of the fixing plate. The fixing plate is slidably connected to the through groove through the side plate. An elastic ring is fixedly connected to the bottom of the blanking hopper. By setting the elastic ring, a buffering effect is achieved. The elastic ring contacts the top of the fixing ring. An extension plate is fixedly connected to the end of the fixing plate away from the blanking hopper. The extension plate has magnetism, and the convex block has magnetism. The magnetisms of the convex block and the extension plate are opposite. The extension plate is located inside the annular groove.

[0014] Preferably, the fine sieve assembly includes a circular ring fixedly connected to the inner wall of the outer shell. A connecting block is fixedly connected to the bottom of the circular ring. There are multiple connecting blocks evenly distributed on the circular ring. A cylinder is fixedly connected to the bottom of the connecting block. A connecting ring is fixedly connected to the inner wall of the cylinder. The raw material passing through the filter plate falls onto the spiral plate. The motor operates with an external power supply. The motor drives the rotation of the rotating shaft, and the rotating shaft drives the spiral plate and the fixed frame to rotate. At this time, the raw material enters the inside of the circular plate along the spiral plate, enabling the raw material to be more evenly distributed on the circular plate, ensuring that the material is evenly spread on the circular plate, making full use of the sieve surface area, and improving the screening effect and quality. A middle ring is fixedly connected to the inner wall of the cylinder. A rotating assembly is fixedly connected to the outer side of the rotating shaft. The rotating assembly is located in the space between the middle ring and the connecting ring. A middle plate is fixedly connected to the inner wall of the circular ring. The middle plate is a bent plate. A spiral plate is fixedly connected to the outer side of the rotating shaft. When the raw material moves along the spiral plate, the granular raw material collides and rubs against the inner wall of the fixed frame, which helps to break up the lumps. At the same time, the channel formed between the fixed frame and the spiral plate can preliminarily screen the granular raw material. Smaller particles can more easily pass through the gap between the fixed frame and the spiral plate under the action of the spiral plate, while larger lumps or particles are intercepted, achieving the preliminary separation of materials with different particle sizes. Under the action of centrifugal force, the larger granular raw material moves towards the direction close to the middle plate. The larger granular raw material contacts the stopper, and the elastic plate is compressed by the force. The end of the stopper away from the elastic plate rotates towards the direction close to the connecting block. At this time, the larger granular raw material enters the space between the cylinder and the outer shell through the middle plate and then is discharged through the through hole. The spiral plate is located inside the middle plate. A stopper is rotatably connected to the inside of the middle plate. An elastic plate is fixedly connected to the side of the stopper close to the connecting block. The end of the elastic plate away from the stopper is fixedly connected to the connecting block. A fixed frame is fixedly connected to the top of the spiral plate. There are multiple fixed frames evenly distributed on the spiral plate. A circular plate is fixedly connected to the inner wall of the cylinder close to the connecting ring. Filter holes are provided on the outer side of the circular plate. A sleeve is rotatably connected to the outer side of the rotating shaft close to the circular plate. By setting the sleeve and the trapezoidal ring, it is possible to prevent powder from entering the gap between the circular plate and the rotating shaft, reduce wear, ensure the smoothness and stability of the rotation of the rotating shaft, reduce the maintenance cost and failure rate of the equipment, and extend the service life of the parts. The end of the sleeve is fixedly connected to a trapezoidal ring. There are two trapezoidal rings. The circular plate is located in the space between the two trapezoidal rings.

[0015] Preferably, the rotating assembly includes a positioning ring fixedly connected to the rotating shaft. A rotating rod is rotatably connected to the outer side of the positioning ring. There are multiple rotating rods evenly distributed around the positioning ring as the center. A rotating cylinder is fixedly connected to the outer side of the rotating rod. The spiral plate drives the preliminarily screened raw materials to fall onto the circular plate. The rotating shaft drives the positioning ring to rotate, so that the positioning ring drives the rotating rod and the gear to rotate. As the rotating shaft rotates, the gear moves between the connecting ring and the middle ring. Through the mutual meshing between the gear and the connecting ring and the middle ring, the gear drives the rotating rod and the rotating cylinder to rotate themselves. At this time, the rotating cylinder drives the outer pressing roller to rotate on the circular plate, so that the material falls onto the supporting plate through the filter holes. The rotating shaft drives the scraper to rotate, pushing the powder on the supporting plate to be discharged from the discharge port. When the pressing roller rotates, it can apply a certain pressure to the raw materials on the circular plate, making the raw materials more closely distributed on the circular plate, reducing the gaps between the material particles. At the same time, the pressing roller can exert a squeezing and turning effect on the raw materials around the filter holes, making the particles stuck in the filter holes return to the circular plate again, reducing the phenomenon of filter hole blockage, ensuring the permeability of the circular plate, maintaining stable screening performance. A circular groove is opened on the outer side of the rotating cylinder. There are multiple circular grooves evenly distributed on the outer side of the rotating cylinder. The inner wall of the circular groove is rotatably connected with a pressing roller. Since the pressing roller is inclined, it can effectively prevent the materials from accumulating on the circular plate, improve the processing efficiency of the materials, make the whole screening process smoother. At the same time, during the rolling and sliding process of the materials, the direction will be continuously changed, increasing the contact opportunity between the materials and the filter holes, enabling more powders that meet the particle size requirements to pass through the filter holes, thereby improving the screening accuracy and efficiency. One end of the rotating rod away from the positioning ring is fixedly connected with a gear. The gear is located at the interval between the connecting ring and the middle ring, and the gear meshes with the connecting ring and the middle ring.

[0016] The present invention provides a raw material screening device for stone paper processing. It has the following beneficial effects:

[0017] First, in the raw material screening device for stone paper processing, through the up-and-down vibration of the frame, the combined movement of rotation and vibration enables the raw materials to continuously roll and jump inside the frame, reducing the residence time of the particles at the frame gaps and lowering the probability of the sieve holes being blocked, which can ensure the continuity and stability of the screening process.

[0018] Second, in the raw material screening device for stone paper processing, by setting the filter plate and the compression spring, the filter plate plays a buffering role, which can slow down the falling speed of the materials, avoid the direct impact of the materials on the fine sieve assembly, thereby protecting the components of the fine sieve assembly and prolonging the service life of the fine sieve assembly.

[0019] Third, in the raw material screening device for stone paper processing, through the up-and-down vibration of the feeding hopper, the feeding hopper can evenly distribute the raw materials at the feeding port of the subsequent screening assembly, avoiding the concentration of the raw materials in a certain local area, so that the raw materials can be evenly spread on the screening assembly, making full use of the area of the screening assembly and improving the screening efficiency and quality.

[0020] IV. The raw material screening device for stone paper processing can preliminarily screen granular raw materials through the channel formed between the fixed frame and the spiral plate. Smaller particles can more easily pass through the gap between the fixed frame and the spiral plate under the action of the spiral plate, while larger lumps or particles are intercepted, realizing the preliminary separation of materials with different particle sizes.

[0021] V. The raw material screening device for stone paper processing can apply a certain pressure to the raw materials on the circular plate when the pressure roller rotates, making the raw materials more closely distributed on the circular plate, reducing the gaps between material particles. At the same time, the pressure roller can exert a squeezing and turning effect on the raw materials around the filter holes, making the particles stuck in the filter holes return to the circular plate again, reducing the phenomenon of filter hole blockage, ensuring the permeability of the circular plate, and maintaining stable screening performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0023] Figure 2 is a schematic sectional view structural diagram of the present invention;

[0024] Figure 3 is a schematic structural diagram of a partial sectional view of the present invention;

[0025] Figure 4 is a schematic sectional view structural diagram of the housing of the present invention;

[0026] Figure 5 is a schematic structural diagram of the screening assembly of the present invention;

[0027] Figure 6 is a schematic structural diagram of the buffer assembly of the present invention;

[0028] Figure 7 is a schematic structural diagram of the fine sieve assembly of the present invention;

[0029] Figure 8 is a schematic structural diagram of a part of the fine sieve assembly of the present invention;

[0030] Figure 9 is a schematic structural diagram of the rotating assembly of the present invention;

[0031] Figure 10 is a schematic sectional view structural diagram of the fine sieve assembly of the present invention.

[0032] In the figure: 1. Housing; 11. Outer shell; 12. Slide groove; 13. Limiting plate; 14. Ring groove; 15. Protrusion; 16. Through groove; 17. Discharge port; 18. Support plate; 19. Support cylinder; 110. Through hole; 2. Screening assembly; 21. L-shaped plate; 22. Fixed ring; 23. Fixed rod; 24. Drum; 25. Hypotenuse; 3. Buffer assembly; 31. Hopper; 32. Fixed plate; 33. Side plate; 34. Extension plate; 35. Elastic ring; 4. Fine sieve assembly; 41. Ring; 42. Spiral plate; 43. Fixed frame; 44. Cylinder; 45. Connecting block; 46. Rotating assembly; 461. Positioning ring; 462. Rotating rod; 463. Rotating cylinder; 464. Circular groove; 465. Pressing roller; 466. Gear; 47. Connecting ring; 48. Intermediate ring; 49. Intermediate plate; 410. Circular plate; 411. Sleeve; 412. Trapezoidal ring; 413. Stop block; 414. Elastic plate; 5. Motor; 6. Rotating shaft; 7. Scraper; 8. Filter plate; 9. Compression spring. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0034] The first embodiment is as Figures 1 to 5 shown. The present invention provides a technical solution: a raw material screening device for stone paper processing, including a housing 1. A motor 5 is fixedly connected to the middle of the bottom of the housing 1, and an output end of the motor 5 is fixedly connected to a rotating shaft 6;

[0035] A buffer assembly 3 is fixedly installed on the top of the housing 1;

[0036] A screening assembly 2 is arranged inside the housing 1, and the screening assembly 2 is located below the buffer assembly 3;

[0037] A fine sieve assembly 4 is fixedly installed inside the housing 1, and the fine sieve assembly 4 is located below the fine sieve assembly 4;

[0038] Among them, the housing 1 includes an outer shell 11. A support plate 18 is fixedly connected to the bottom of the outer shell 11. The bottom of the support plate 18 is fixedly connected to the motor 5. The output end of the motor 5 penetrates through the support plate 18. A ring groove 14 is opened inside the outer shell 11. A protrusion 15 is fixedly connected to the inner wall of the ring groove 14. The number of the protrusions 15 is multiple, and the multiple protrusions 15 are evenly distributed inside the ring groove 14. A discharge port 17 is opened on the outer side of the outer shell 11 close to the support plate 18;

[0039] The screening assembly 2 includes L-shaped plates 21. There are multiple L-shaped plates 21. A fixing ring 22 is fixedly connected to the outer side of the L-shaped plate 21. Multiple L-shaped plates 21 and multiple fixing rings 22 form a framework. The raw material is added into the interior of the screening assembly 2 through the top of the housing 11. The motor 5 is externally powered to work. When the motor 5 works, it drives the rotating shaft 6 to rotate. Thus, the rotating shaft 6 drives the L-shaped plates 21 and the fixing rings 22 to rotate, causing the raw material to rotate inside the framework, so that the raw material breaks away through the gap between the L-shaped plates 21 and the fixing rings 22, thereby preliminarily screening the raw material. At the same time, the rotating shaft 6 drives the fixing rod 23 to rotate inside the annular groove 14. The roller 24 at the bottom of the fixing rod 23 contacts and presses against the convex block 15 inside the annular groove 14. The roller 24 is stressed to drive the framework to move upward. As the rotating shaft 6 rotates, the framework vibrates up and down. The combined movement of rotation and vibration causes the raw material to continuously tumble and jump inside the framework, reducing the residence time of the particles at the gaps of the framework and reducing the probability of the sieve holes being blocked, which can ensure the continuity and stability of the screening process. The L-shaped plate 21 is fixedly connected to the outer side of the rotating shaft 6. There are multiple fixing rings 22. Multiple L-shaped plates 21 are connected through multiple fixing rings 22. The top of the fixing ring 22 is fixedly connected to a fixing rod 23. The bottom of the fixing rod 23 is rotatably connected to a roller 24.

[0040] Second embodiment. On the basis of the first embodiment, please refer to Figures 3 to 5 As shown, a compression spring 9 is fixedly connected to the interior of the housing 1. One end of the compression spring 9 away from the housing 1 is fixedly connected to a filter plate 8. The filter plate 8 is located between the screening assembly 2 and the fine screening assembly 4. The raw material inside the screening assembly 2 leaves the screening assembly 2 and falls onto the top of the filter plate 8. By providing the filter plate 8 and the compression spring 9, the filter plate 8 plays a buffering role, which can slow down the falling speed of the material and avoid the material directly impacting the components of the fine screening assembly 4, thereby protecting the components of the fine screening assembly 4 and extending the service life of the fine screening assembly 4. The filter plate 8 is slidably connected to the interior of the housing 1. The rotating shaft 6 penetrates through the filter plate 8. A scraper 7 is fixedly connected to the outer side of the rotating shaft 6. There are multiple scrapers 7, and multiple scrapers 7 are evenly distributed around the rotating shaft 6.

[0041] A chute 12 is provided on the inner wall of the housing 11. The filter plate 8 is slidably connected to the inner wall of the housing 11 through the chute 12. A limiting plate 13 is fixedly connected to the outer side of the chute 12. The compression spring 9 is located inside the chute 12 and the limiting plate 13. A through groove 16 is provided on one side of the housing 11 close to the annular groove 14. The through groove 16 is perpendicular to the annular groove 14. There are multiple through grooves 16, and multiple through grooves 16 are evenly distributed inside the housing 11. A supporting cylinder 19 is fixedly connected to the bottom edge of the supporting plate 18. The motor 5 is located inside the supporting cylinder 19. A through hole 110 is provided on the outer side of the housing 11. The through hole 110 and the fine screening assembly 4 are on the same horizontal plane.

[0042] There are four fixing rods 23. The four fixing rods 23 are evenly distributed around the fixing ring 22. The roller 24 is located at one end of the fixing rod 23 away from the fixing ring 22. An inclined edge 25 is provided at the top of the fixing rod 23.

[0043] Third embodiment. On the basis of the first and second embodiments, please refer to Figure 6 As shown, the buffer assembly 3 includes a feeding hopper 31. A fixing plate 32 is fixedly connected to the bottom edge of the feeding hopper 31. There are multiple fixing plates 32. The fixing plates 32 are located inside the through groove 16. A side plate 33 is fixedly connected to the outside of the fixing plate 32. Place the raw materials inside the feeding hopper 31. The motor 5 is externally powered to work. The motor 5 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the L-shaped plate 21 and the fixing ring 22 to rotate. Thus, the rotating shaft 6 drives the fixing rod 23 to rotate. The fixing rod 23 rotates inside the annular groove 14. The inclined edge 25 on the fixing rod 23 contacts and squeezes the extension plate 34 inside the annular groove 14. The extension plate 34 is stressed to drive the fixing plate 32 to move upward inside the through groove 16. Subsequently, the rotating shaft 6 drives the fixing rod 23 away from the extension plate 34. Under the action of the mutual suction force between the extension plate 34 and the convex block 15, the extension plate 34 drives the feeding hopper 31 to move downward. The feeding hopper 31 vibrates up and down. The feeding hopper 31 can evenly distribute the raw materials at the feeding port of the subsequent screening assembly 2, avoiding the concentration of raw materials in a certain local area. Thus, the raw materials can be evenly spread on the screening assembly 2, making full use of the area of the screening assembly 2 and improving the screening efficiency and quality. The side plates 33 are symmetrically arranged on the outside of the fixing plate 32. The fixing plate 32 is slidably connected to the through groove 16 through the side plates 33. An elastic ring 35 is fixedly connected to the bottom of the feeding hopper 31. By providing the elastic ring 35, a buffering effect is achieved. The elastic ring 35 contacts the top of the fixing ring 22. An extension plate 34 is fixedly connected to one end of the fixing plate 32 away from the feeding hopper 31. The extension plate 34 has magnetism. The convex block 15 has magnetism. The magnetism between the convex block 15 and the extension plate 34 is opposite. The extension plate 34 is located inside the annular groove 14.

[0044] Fourth embodiment. Please refer to Figures 7 to 10As shown, the fine sieve assembly 4 includes a circular ring 41, the circular ring 41 is fixedly connected to the inner wall of the outer shell 11, a connecting block 45 is fixedly connected to the bottom of the circular ring 41, the number of the connecting blocks 45 is multiple, and the multiple connecting blocks 45 are evenly distributed on the circular ring 41. A cylinder 44 is fixedly connected to the bottom of the connecting block 45. A connecting ring 47 is fixedly connected to the inner wall of the cylinder 44. The raw material passing through the filter plate 8 falls onto the spiral plate 42. The motor 5 is powered on to work. When the motor 5 works, it drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the spiral plate 42 and the fixed frame 43 to rotate. At this time, the raw material enters the inside of the circular plate 410 along the spiral plate 42, enabling the raw material to be more evenly distributed on the circular plate 410, ensuring that the material is evenly spread on the circular plate 410, making full use of the sieve surface area, and improving the screening effect and quality. An intermediate ring 48 is fixedly connected to the inner wall of the cylinder 44. A rotating assembly 46 is fixedly connected to the outer side of the rotating shaft 6. The rotating assembly 46 is located in the interval between the intermediate ring 48 and the connecting ring 47. An intermediate plate 49 is fixedly connected to the inner wall of the circular ring 41. The intermediate plate 49 is a bent plate. A spiral plate 42 is fixedly connected to the outer side of the rotating shaft 6. When the raw material moves along the spiral plate 42, the granular raw material collides and rubs against the inner wall of the fixed frame 43, which helps to break up the lumps. At the same time, the channel formed between the fixed frame 43 and the spiral plate 42 can conduct a preliminary screening of the granular raw material. Smaller particles can more easily pass through the gap between the fixed frame 43 and the spiral plate 42 under the action of the spiral plate, while larger lumps or particles are intercepted, realizing the preliminary separation of materials with different particle sizes. Under the action of centrifugal force, the larger granular raw material moves towards the direction close to the intermediate plate 49. The larger granular raw material contacts the stop block 413, and the elastic plate 414 is compressed by the force. The end of the stop block 413 away from the elastic plate 414 rotates towards the direction close to the connecting block 45. At this time, the larger granular raw material enters the interval between the cylinder 44 and the outer shell 11 through the intermediate plate 49, and then is discharged through the through hole 110. The spiral plate 42 is located inside the intermediate plate 49. A stop block 413 is rotatably connected to the inside of the intermediate plate 49. An elastic plate 414 is fixedly connected to the side of the stop block 413 close to the connecting block 45. The end of the elastic plate 414 away from the stop block 413 is fixedly connected to the connecting block 45. A fixed frame 43 is fixedly connected to the top of the spiral plate 42. The number of the fixed frames 43 is multiple, and the multiple fixed frames 43 are evenly distributed on the spiral plate 42. A circular plate 410 is fixedly connected to the inner wall of the cylinder 44 close to the connecting ring 47. Filter holes are formed on the outer side of the circular plate 410. A sleeve 411 is rotatably connected to the outer side of the rotating shaft 6 close to the circular plate 410. By providing the sleeve 411 and the trapezoidal ring 412, it is possible to prevent powder from entering the gap between the circular plate 410 and the rotating shaft 6, reduce wear, ensure the smoothness and stability of the rotation of the rotating shaft, reduce the maintenance cost and failure rate of the equipment, and extend the service life of the parts. A trapezoidal ring 412 is fixedly connected to the end of the sleeve 411. The number of the trapezoidal rings 412 is two. The circular plate 410 is located in the interval between the two trapezoidal rings 412.

[0045] The rotating assembly 46 includes a positioning ring 461 which is fixedly connected to the rotating shaft 6. A rotating rod 462 is rotatably connected to the outer side of the positioning ring 461. There are multiple rotating rods 462 which are evenly distributed around the positioning ring 461 as the center. A rotating cylinder 463 is fixedly connected to the outer side of the rotating rod 462. The spiral plate 42 drives the preliminarily screened raw materials to fall onto the circular plate 410. The rotating shaft 6 drives the positioning ring 461 to rotate, so that the positioning ring 461 drives the rotating rod 462 and the gear 466 to rotate. As the rotating shaft 6 rotates, the gear 466 moves between the connecting ring 47 and the intermediate ring 48. Through the meshing between the gear 466 and the connecting ring 47 and the intermediate ring 48, the gear 466 drives the rotating rod 462 and the rotating cylinder 463 to rotate themselves. At this time, the rotating cylinder 463 drives the outer pressing roller 465 to rotate on the circular plate 410, so that the materials fall onto the supporting plate 18 through the filter holes. The rotating shaft 6 drives the scraper 7 to rotate, and pushes the powder on the supporting plate 18 to be discharged from the discharge port 17. When the pressing roller 465 rotates, it can apply a certain pressure to the raw materials on the circular plate 410, so that the raw materials are more closely distributed on the circular plate 410, reducing the gaps between the material particles. At the same time, the pressing roller 465 can exert an extrusion and turning effect on the raw materials around the filter holes, so that the particles stuck in the filter holes return to the circular plate 410 again, reducing the phenomenon of filter hole blockage, ensuring the permeability of the circular plate 410, maintaining stable screening performance. A circular groove 464 is opened on the outer side of the rotating cylinder 463. There are multiple circular grooves 464 which are evenly distributed on the outer side of the rotating cylinder 463. The inner wall of the circular groove 464 is rotatably connected to a pressing roller 465. Since the pressing roller 465 is inclined, it can effectively prevent the materials from accumulating on the circular plate 410, improving the processing efficiency of the materials and making the whole screening process smoother. At the same time, the materials will continuously change directions during the rolling and sliding processes, increasing the contact opportunities between the materials and the filter holes, so that more powders meeting the particle size requirements can pass through the filter holes, thereby improving the screening accuracy and efficiency. One end of the rotating rod 462 far from the positioning ring 461 is fixedly connected to a gear 466. The gear 466 is located at the interval between the connecting ring 47 and the intermediate ring 48, and the gear 466 is in gear meshing with the connecting ring 47 and the intermediate ring 48.

[0046] During use, place the raw materials inside the hopper 31. The motor 5 operates with an external power supply. When the motor 5 operates, it drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the L-shaped plate 21 and the fixed ring 22 to rotate, thereby driving the fixed rod 23 to rotate. The fixed rod 23 rotates inside the annular groove 14. The inclined side 25 on the fixed rod 23 contacts and exerts pressure on the extension plate 34 inside the annular groove 14. The extension plate 34 is forced to drive the fixed plate 32 to move upward inside the through groove 16. Subsequently, the rotating shaft 6 drives the fixed rod 23 away from the extension plate 34. Under the mutual suction force between the extension plate 34 and the convex block 15, the extension plate 34 drives the hopper 31 to move downward, and the hopper 31 vibrates up and down. The hopper 31 can evenly distribute the raw materials at the feed inlet of the subsequent screening assembly 2.

[0047] The raw materials are added into the screening assembly 2 through the hopper 31. The motor 5 operates with an external power supply. When the motor 5 operates, it drives the rotating shaft 6 to rotate, thereby driving the L-shaped plate 21 and the fixed ring 22 to rotate, causing the raw materials to rotate inside the frame, and enabling the raw materials to separate through the gap between the L-shaped plate 21 and the fixed ring 22, thus preliminarily screening the raw materials. At the same time, the rotating shaft 6 drives the fixed rod 23 to rotate inside the annular groove 14. The roller 24 at the bottom of the fixed rod 23 contacts and exerts pressure on the convex block 15 inside the annular groove 14. The roller 24 is forced to drive the frame to move upward. As the rotating shaft 6 rotates, the frame vibrates up and down.

[0048] The raw materials passing through the filter plate 8 fall onto the spiral plate 42. The motor 5 operates with an external power supply. When the motor 5 operates, it drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the spiral plate 42 and the fixed frame 43 to rotate. At this time, the raw materials enter the inside of the circular plate 410 along the spiral plate 42.

[0049] The rotating shaft 6 drives the positioning ring 461 to rotate, causing the positioning ring 461 to drive the rotating rod 462 and the gear 466 to rotate. As the rotating shaft 6 rotates, the gear 466 moves between the connecting ring 47 and the intermediate ring 48. Through the mutual meshing between the gear 466 and the connecting ring 47 and the intermediate ring 48, the gear 466 drives the rotating rod 462 and the rotating cylinder 463 to rotate themselves. At this time, the rotating cylinder 463 drives the outer pressing roller 465 to rotate on the circular plate 410, enabling the materials to fall onto the supporting plate 18 through the filter holes. The rotating shaft 6 drives the scraper 7 to rotate, pushing the powder on the supporting plate 18 to be discharged from the discharge port 17.

[0050] It should be noted that in this article, 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 terms "comprising", "including" or any other variant thereof are 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. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material screening device for stone paper processing, characterized in that, Comprising: A housing (1), at the middle of the bottom of the housing (1) is fixedly connected with a motor (5), and the output end of the motor (5) is fixedly connected with a rotating shaft (6); A buffer assembly (3), which is fixedly installed on the top of the housing (1); A screening assembly (2), which is arranged inside the housing (1), and the screening assembly (2) is located below the buffer assembly (3); A fine sieve assembly (4), which is fixedly installed inside the housing (1), and the fine sieve assembly (4) is located below the fine sieve assembly (4); Wherein, the housing (1) includes an outer shell (11), the bottom of the outer shell (11) is fixedly connected with a support plate (18), the bottom of the support plate (18) is fixedly connected with the motor (5), the output end of the motor (5) penetrates through the support plate (18), an annular groove (14) is formed inside the outer shell (11), the inner wall of the annular groove (14) is fixedly connected with a convex block (15), the number of the convex blocks (15) is multiple, and multiple convex blocks (15) are evenly distributed inside the annular groove (14), and a discharge port (17) is formed on the outer side of the outer shell (11) close to the support plate (18); The screening assembly (2) includes L-shaped plates (21), the number of the L-shaped plates (21) is multiple, the outer side of the L-shaped plate (21) is fixedly connected with a fixing ring (22), the L-shaped plate (21) is fixedly connected with the outer side of the rotating shaft (6), the number of the fixing rings (22) is multiple, and multiple L-shaped plates (21) are connected through multiple fixing rings (22), the top of the fixing ring (22) is fixedly connected with a fixing rod (23), and the bottom of the fixing rod (23) is rotatably connected with a roller (24).

2. The raw material screening device for processing stone paper according to claim 1, characterized in that: A compression spring (9) is fixedly connected inside the housing (1), one end of the compression spring (9) away from the housing (1) is fixedly connected with a filter plate (8), the filter plate (8) is slidably connected with the inside of the housing (1), the rotating shaft (6) penetrates through the filter plate (8), and the outer side of the rotating shaft (6) is fixedly connected with a scraper (7), the number of the scrapers (7) is multiple, and multiple scrapers (7) are evenly distributed around the rotating shaft (6).

3. The raw material screening device for stone paper processing according to claim 2, wherein: The inner wall of the housing (11) is provided with a chute (12). The filter plate (8) is slidably connected to the inner wall of the housing (11) through the chute (12). A limiting plate (13) is fixedly connected to the outside of the chute (12). The compression spring (9) is located inside the chute (12) and the limiting plate (13). A through groove (16) is provided on one side of the housing (11) close to the annular groove (14). The through groove (16) is perpendicular to the annular groove (14). The number of the through grooves (16) is multiple, and the multiple through grooves (16) are evenly distributed inside the housing (11). The bottom edge of the support plate (18) is fixedly connected with a support cylinder (19). The motor (5) is located inside the support cylinder (19). A through hole (110) is provided on the outside of the housing (11). The through hole (110) and the fine sieve assembly (4) are on the same horizontal plane.

4. The raw material screening device for processing stone paper according to claim 3, wherein: The number of the fixed rods (23) is four. The four fixed rods (23) are evenly distributed around the fixed ring (22). The drum (24) is located at one end of the fixed rod (23) far from the fixed ring (22). An inclined edge (25) is provided at the top of the fixed rod (23).

5. The raw material screening device for stone paper processing according to claim 4, characterized in that: The buffer assembly (3) includes a feeding hopper (31). The bottom edge of the feeding hopper (31) is fixedly connected with a fixing plate (32). The number of the fixing plates (32) is multiple. The fixing plates (32) are located inside the through groove (16). A side plate (33) is fixedly connected to the outside of the fixing plate (32). The side plates (33) are symmetrically arranged on the outside of the fixing plate (32). The fixing plate (32) is slidably connected to the through groove (16) through the side plate (33). An elastic ring (35) is fixedly connected to the bottom of the feeding hopper (31). The elastic ring (35) contacts the top of the fixed ring (22). An extension plate (34) is fixedly connected to one end of the fixing plate (32) far from the feeding hopper (31). The extension plate (34) is located inside the annular groove (14).

6. The raw material screening device for processing stone paper according to claim 1, wherein: The fine sieve assembly (4) includes a circular ring (41). The circular ring (41) is fixedly connected to the inner wall of the housing (11). A connecting block (45) is fixedly connected to the bottom of the circular ring (41). The number of the connecting blocks (45) is multiple. The multiple connecting blocks (45) are evenly distributed on the circular ring (41). A cylinder (44) is fixedly connected to the bottom of the connecting block (45). A connecting ring (47) is fixedly connected to the inner wall of the cylinder (44). An intermediate ring (48) is fixedly connected to the inner wall of the cylinder (44). A rotating assembly (46) is fixedly connected to the outside of the rotating shaft (6). The rotating assembly (46) is located in the interval between the intermediate ring (48) and the connecting ring (47).

7. An apparatus for screening raw materials for processing stone paper according to claim 6, characterized in that: The inner wall of the ring (41) is fixedly connected with an intermediate plate (49), the intermediate plate (49) is a bent plate, the outer side of the rotating shaft (6) is fixedly connected with a spiral plate (42), the spiral plate (42) is located inside the intermediate plate (49), the inside of the intermediate plate (49) is rotatably connected with a stopper (413), one side of the stopper (413) close to the connecting block (45) is fixedly connected with an elastic plate (414), and one end of the elastic plate (414) away from the stopper (413) is fixedly connected with the connecting block (45).

8. The raw material screening device for stone paper processing according to claim 7, characterized in that: The top of the spiral plate (42) is fixedly connected with a fixed frame (43), the number of the fixed frames (43) is multiple, and the multiple fixed frames (43) are evenly distributed on the spiral plate (42). The inner wall of the cylinder (44) close to the connecting ring (47) is fixedly connected with a circular plate (410), filter holes are formed in the outer side of the circular plate (410), the outer side of the rotating shaft (6) close to the circular plate (410) is rotatably connected with a sleeve (411), the end of the sleeve (411) is fixedly connected with a trapezoidal ring (412), the number of the trapezoidal rings (412) is two, and the circular plate (410) is located at the interval between the two trapezoidal rings (412).

9. The raw material screening device for processing stone paper according to claim 8, characterized in that: The rotating assembly (46) includes a positioning ring (461), the positioning ring (461) is fixedly connected with the rotating shaft (6), the outer side of the positioning ring (461) is rotatably connected with a rotating rod (462), the number of the rotating rods (462) is multiple, and the multiple rotating rods (462) are evenly distributed around the positioning ring (461). The outer side of the rotating rod (462) is fixedly connected with a rotating cylinder (463).

10. The raw material screening device for processing stone paper according to claim 9, characterized in that: Circular grooves (464) are formed in the outer side of the rotating cylinder (463), the number of the circular grooves (464) is multiple, and the multiple circular grooves (464) are evenly distributed on the outer side of the rotating cylinder (463). The inner wall of the circular groove (464) is rotatably connected with a pressure roller (465). One end of the rotating rod (462) away from the positioning ring (461) is fixedly connected with a gear (466), the gear (466) is located at the interval between the connecting ring (47) and the intermediate ring (48), and the gear (466) is in gear engagement with the connecting ring (47) and the intermediate ring (48).

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