A raw material screening device for stone paper processing

Abstract

This invention discloses a raw material screening device for stone paper processing, relating to the field of stone paper processing technology. It includes multiple L-shaped plates, with fixed rings fixedly connected to the outer sides of each L-shaped plate. The L-shaped plates are also fixedly connected to the outer sides of a rotating shaft. Multiple L-shaped plates are connected by multiple fixed rings, and a fixed rod is fixedly connected to the top of each fixed ring. A roller is rotatably connected to the bottom of each fixed rod. In this raw material screening device for stone paper processing, the raw material passes through the gap between the L-shaped plates and the fixed rings, thus performing preliminary screening. Simultaneously, the rotating shaft drives the fixed rods to rotate inside the ring grooves, and the rollers, under force, drive the frame to move upwards. As the rotating shaft rotates, the frame vibrates up and down. This combined rotation and vibration causes the raw material to continuously tumble and jump inside the frame, reducing the residence time of particles in the gaps between the frames and lowering the probability of sieve clogging.

Description

Technical Field

[0001] This invention relates to the field of stone paper processing technology, specifically to a raw material screening device for stone paper processing. Background Technology

[0002] As global environmental problems become increasingly severe and people's awareness of environmental protection continues to rise, there is an urgent need for an environmentally friendly material to replace traditional paper. Stone paper emerged precisely to meet this need. It uses inorganic minerals as its main raw material, does not rely on forest resources, and reduces environmental damage at the source. Stone paper, also known as petrochemical paper, is made by grinding calcium carbonate, the main component of stone, into ultrafine particles. In other words, it uses powdered stone as its main raw material, along with polyethylene and adhesives. This paper is waterproof, strong, and not easily flammable. Most importantly, it does not require logging, making it extremely environmentally friendly.

[0003] In existing screening equipment, the filter plate mesh is easily clogged by large particles of raw material during the screening process. Maintenance personnel need to replace the filter plates or unclog the mesh regularly. This process requires the screening machinery to be shut down, which affects the screening production efficiency. Summary of the Invention

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

[0005] A cushioning assembly is fixedly mounted on the top of the housing;

[0006] The screening assembly is located inside the housing and below the buffer assembly.

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

[0008] 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 passes through the support plate, an annular groove is opened inside the outer shell, and protrusions are fixedly connected to the inner wall of the annular groove. There are multiple protrusions, which are evenly distributed inside the annular groove. A discharge port is opened on the outer side of the outer shell near the support plate.

[0009] Preferably, the screening assembly includes multiple L-shaped plates. A fixing ring is fixedly connected to the outer side of each L-shaped plate. Multiple L-shaped plates and fixing rings form a frame. Raw materials are fed into the screening assembly through the top of the outer shell. An externally powered motor drives a rotating shaft, which in turn rotates the L-shaped plates and fixing rings. This causes the raw materials to rotate within the frame, allowing them to pass through the gaps between the L-shaped plates and fixing rings, thus performing preliminary screening. Simultaneously, the rotating shaft drives a fixing rod to rotate within a ring groove. The roller at the bottom of the fixing rod contacts and compresses a protrusion inside the ring groove. The roller, under pressure, moves the frame upwards. As the rotating shaft rotates, the frame vibrates up and down. This combination of rotation and vibration causes the raw materials to continuously tumble and jump within the frame, reducing the residence time of particles in the gaps between the frames and lowering the probability of sieve clogging. This ensures the continuity and stability of the screening process. The L-shaped plates are fixedly connected to the outer side of the rotating shaft, and multiple fixing rings are connected to the L-shaped plates via these rings. A fixing rod is fixedly connected to the top of each fixing ring, and a roller is rotatably connected to the bottom of the fixing rod.

[0010] Preferably, a compression spring is fixedly connected inside the housing, and a filter plate is fixedly connected to the end of the compression spring away from the housing. The filter plate is located between the screening component and the fine screening component. The raw material inside the screening component leaves the screening component and falls onto the top of the filter plate. 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 material and prevent the material from directly impacting the fine screening component, thereby protecting the components of the fine screening component and extending the service life of the fine screening component. The filter plate is slidably connected to the inside of the housing, and a rotating shaft passes through the filter plate. A scraper is fixedly connected to the outside of the rotating shaft. There are multiple scrapers, and the multiple scrapers are evenly distributed around the rotating shaft.

[0011] Preferably, the inner wall of the outer shell is provided with a sliding groove, and the filter plate is slidably connected to the inner wall of the outer shell 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 provided on the side of the outer shell near the annular groove. The through groove is perpendicular to the annular groove. There are multiple through grooves, which are evenly distributed inside the outer shell. A support cylinder is fixedly connected to the bottom edge of the support plate. The motor is located inside the support cylinder. A through hole is provided on the outer side of the outer shell. The through hole is located on the same horizontal plane as the fine screen assembly.

[0012] There are four fixing rods, which are evenly distributed around the fixing ring. The roller is located at the end of the fixing rod away from the fixing ring, and the top of the fixing rod has a bevel.

[0013] Preferably, the buffer assembly includes a hopper, with multiple fixing plates fixedly connected to the bottom edge of the hopper. The fixing plates are located inside the through groove, and side plates are fixedly connected to the outer sides of the fixing plates. Raw materials are placed inside the hopper. An externally powered motor operates, driving a rotating shaft. The rotating shaft drives an L-shaped plate and a fixing ring to rotate, which in turn drives a fixing rod to rotate inside the ring groove. The fixing rod rotates inside the ring groove, and its inclined edge contacts and compresses an extension plate inside the ring groove. The extension plate, under pressure, causes the fixing plate to move upwards inside the through groove. Subsequently, the rotating shaft drives the fixing rod away from the extension plate. Under the mutual attraction between the extension plate and the protrusion, the extension plate moves the hopper. As the material moves downwards, the hopper vibrates up and down, distributing the raw material evenly at the inlet of the subsequent screening components. This prevents the material from concentrating in a localized area, ensuring even spreading of the material on the screening components and maximizing their area to improve screening efficiency and quality. Side plates are symmetrically positioned outside the fixed plate, which is slidably connected to the through groove via the side plates. An elastic ring is fixedly connected to the bottom of the hopper, acting as a buffer. The elastic ring contacts the top of the fixed ring. An extension plate is fixedly connected to the end of the fixed plate furthest from the hopper. The extension plate is magnetic, as are the protrusions. The magnetic properties of the protrusions and the extension plate are opposite. The extension plate is located inside the ring groove.

[0014] Preferably, the fine screening assembly includes a ring, which is fixedly connected to the inner wall of the outer shell. Multiple connecting blocks are fixedly connected to the bottom of the ring and evenly distributed on the ring. A cylinder is fixedly connected to the bottom of each connecting block, and 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. An externally powered motor drives a rotating shaft, which in turn rotates the spiral plate and the fixed frame. At this time, the raw material enters the interior of the spiral plate along the spiral plate, allowing for a more even distribution on the plate. This ensures uniform material spreading on the plate, fully utilizing the screen surface area and improving screening efficiency. Regarding effectiveness and quality, an intermediate ring is fixedly connected to the inner wall of the cylinder, and a rotating assembly is fixedly connected to the outer side of the rotating shaft. The rotating assembly is located in the gap between the intermediate ring and the connecting ring. An intermediate plate, which is designed as a bent plate, is fixedly connected to the inner wall of the ring, and 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 agglomerates. At the same time, the channel formed between the fixed frame and the spiral plate can perform preliminary screening of granular raw materials. 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 particles... Large clumps or particles are intercepted, achieving initial separation of materials of different particle sizes. Under the action of centrifugal force, larger particles move towards the middle plate. These larger particles contact the baffle, compressing the spring plate. The end of the baffle away from the spring plate rotates towards the connecting block. At this point, the larger particles pass through the middle plate into the gap between the cylinder and the outer shell, and are then discharged through the through-hole. The spiral plate is located inside the middle plate, and a baffle is rotatably connected inside the middle plate. A spring plate is fixedly connected to the side of the baffle near the connecting block, and the end of the spring plate away from the baffle is fixedly connected to the connecting block. The spiral plate is fixedly connected to a fixed frame at its top. There are multiple fixed frames evenly distributed on the spiral plate. A circular plate is fixedly connected to the inner wall of the cylinder near the connecting ring. Filter holes are opened on the outer side of the circular plate. A sleeve is rotatably connected to the shaft near the outer side of the circular plate. By setting the sleeve and trapezoidal ring, powder is prevented from entering the gap between the circular plate and the shaft, reducing wear, ensuring the smoothness and stability of the shaft rotation, reducing equipment maintenance costs and failure rate, and extending the service life of parts. Two trapezoidal rings are fixedly connected to the end of the sleeve, and the circular plate is located at the interval between the two trapezoidal rings.

[0015] Preferably, the rotating assembly includes a positioning ring, which is fixedly connected to a rotating shaft. Multiple rotating rods are rotatably connected to the outer side of the positioning ring, evenly distributed around the positioning ring. A rotating cylinder is fixedly connected to the outer side of each rotating rod. A spiral plate carries the pre-screened raw material onto a circular plate. The rotating shaft drives the positioning ring to rotate, causing the positioning ring to drive the rotating rods and gears to rotate. As the rotating shaft rotates, the gears move between a connecting ring and an intermediate ring. Through the meshing of the gears with the connecting ring and the intermediate ring, the gears drive the rotating rods and the rotating cylinder to rotate. At this time, the rotating cylinder drives the outer pressure roller to rotate on the circular plate, causing the material to fall through the filter holes onto a support plate. The rotating shaft drives the scraper to rotate, pushing the powder on the support plate out of the discharge port. When the pressure rollers rotate, they can apply a certain pressure to the raw material on the circular plate, making the raw material more densely distributed on the circular plate and reducing the gaps between material particles. Meanwhile, the pressure roller can squeeze and tumble the raw material around the filter holes, causing the particles stuck in the filter holes to return to the circular plate, reducing filter hole clogging, ensuring the permeability of the circular plate, and maintaining stable screening performance. The outer side of the rotating drum has multiple circular grooves, which are evenly distributed on the outer side of the rotating drum. The inner wall of the circular groove is rotatably connected to the pressure roller. The pressure roller is inclined, which can effectively prevent the material from accumulating on the circular plate, improve the material processing efficiency, and make the entire screening process smoother. At the same time, the material will constantly change direction during rolling and sliding, increasing the contact opportunity between the material and the filter holes, allowing more powder that meets the particle size requirements to pass through the filter holes, thereby improving the screening accuracy and efficiency. A gear is fixedly connected to the end of the rotating rod away from the positioning ring. The gear is located at the interval between the connecting ring and the intermediate ring, and the gear meshes with the gear between the connecting ring and the intermediate ring.

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

[0017] I. The raw material screening device for stone paper processing uses a combination of up-and-down vibration, rotation and vibration of the frame to make the raw material tumble and jump continuously inside the frame, reducing the residence time of particles in the gaps between the frames, reducing the probability of the screen holes being blocked, and ensuring the continuity and stability of the screening process.

[0018] Second, the raw material screening device for stone paper processing, by setting up filter plates and compression springs, the filter plates play a buffering role, which can slow down the falling speed of materials and prevent materials from directly impacting the fine screen components, thereby protecting the components of the fine screen components and extending the service life of the fine screen components.

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

[0020] Fourth, the raw material screening device for stone paper processing can perform preliminary screening of granular raw materials through the channel formed between the fixed frame and the spiral plate. Smaller particles can pass through the gap between the fixed frame and the spiral plate more easily under the action of the spiral plate, while larger clumps or particles are intercepted, thus achieving preliminary separation of materials of different particle sizes.

[0021] 5. The raw material screening device for stone paper processing can apply a certain pressure to the raw material on the circular plate when the pressure roller rotates, so that the raw material is more tightly distributed on the circular plate, reducing the gap between material particles. At the same time, the pressure roller can squeeze and turn the raw material around the filter holes, so that the particles stuck in the filter holes return to the circular plate, reducing the phenomenon of filter hole blockage, ensuring the permeability of the circular plate, and maintaining stable screening performance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic cross-sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of a partial cross-section of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the shell of the present invention in cross-section;

[0026] Figure 5 This is a schematic diagram of the structure of the screening component of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the buffer component of the present invention;

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

[0029] Figure 8 This is a partial structural schematic diagram of the fine screening component of the present invention;

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

[0031] Figure 10 This is a structural schematic diagram of a cross-sectional view of the fine screening component of the present invention.

[0032] In the diagram: 1. Shell; 11. Outer shell; 12. Slide groove; 13. Limiting plate; 14. Annular 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. Fixing ring; 23. Fixing rod; 24. Roller; 25. Bevel; 3. Buffer assembly; 31. Hopper; 32. Fixing plate; 33. Side plate; 34. Extension plate; 35. Elastic ring; 4. Fine screen assembly; 41. 42. Circular ring; 43. Spiral plate; 44. Fixed frame; 45. Cylinder; 46. Connecting block; 47. Rotating assembly; 48. Positioning ring; 49. Rotating rod; 40. Rotating cylinder; 410. Circular groove; 411. Pressure roller; 42. Gear; 43. Connecting ring; 44. Intermediate ring; 45. Intermediate plate; 46. Circular plate; 47. Sleeve; 48. Sleeve; 49. Trapezoidal ring; 40. Stop block; 412. Spring plate; 413. Motor; 414. Rotating shaft; 5. Scraper; 6. Filter plate; 7. Compression spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

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

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

[0036] Screening component 2 is disposed inside the housing 1 and is located below the buffer component 3;

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

[0038] 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 passes through the support plate 18. An annular groove 14 is opened inside the outer shell 11. A protrusion 15 is fixedly connected to the inner wall of the annular groove 14. There are multiple protrusions 15, which are evenly distributed inside the annular groove 14. A discharge port 17 is opened on the outer side of the outer shell 11 near the support plate 18.

[0039] The screening assembly 2 includes multiple L-shaped plates 21. A fixing ring 22 is fixedly connected to the outer side of each L-shaped plate 21. Multiple L-shaped plates 21 and multiple fixing rings 22 form a frame. Raw materials are fed into the screening assembly 2 through the top of the outer shell 11. An externally powered motor 5 drives a rotating shaft 6, which in turn rotates the L-shaped plates 21 and fixing rings 22. This causes the raw materials to rotate within the frame, allowing them to pass through the gap between the L-shaped plates 21 and the fixing rings 22, thus performing preliminary screening. Simultaneously, the rotating shaft 6 drives a fixing rod 23 to rotate within the annular groove 14. The bottom of the fixing rod 23... The roller 24 of the part contacts the protrusion 15 inside the annular groove 14 and generates compression. The roller 24 is driven by force to move the frame upward. As the rotating shaft 6 rotates, the frame vibrates up and down. The combined motion of rotation and vibration makes the raw material roll and jump continuously inside the frame, reducing the residence time of particles in the gaps between the frames and reducing the probability of the screen holes being blocked. This can ensure the continuity and stability of the screening process. The L-shaped plate 21 is fixedly connected to the outside of the rotating shaft 6. There are multiple fixing rings 22. Multiple L-shaped plates 21 are connected by multiple fixing rings 22. The top of the fixing ring 22 is fixedly connected to the fixing rod 23, and the bottom of the fixing rod 23 is rotatably connected to the roller 24.

[0040] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 3 to 5 As shown, a compression spring 9 is fixedly connected inside the housing 1. A filter plate 8 is fixedly connected to the end of the compression spring 9 away from the housing 1. The filter plate 8 is located between the screening component 2 and the fine screening component 4. The raw material inside the screening component 2 leaves the screening component 2 and falls onto the top of the filter plate 8. By setting 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 prevent the material from directly impacting the fine screening component 4, thereby protecting the components of the fine screening component 4 and extending the service life of the fine screening component 4. The filter plate 8 is slidably connected to the inside of the housing 1. A rotating shaft 6 passes through the filter plate 8. A scraper 7 is fixedly connected to the outside of the rotating shaft 6. There are multiple scrapers 7, and the multiple scrapers 7 are evenly distributed around the rotating shaft 6.

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

[0042] There are four fixing rods 23, which are evenly distributed around the fixing ring 22. The roller 24 is located at the end of the fixing rod 23 away from the fixing ring 22. The top of the fixing rod 23 is provided with a bevel 25.

[0043] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figure 6 As shown, the buffer assembly 3 includes a hopper 31, with a fixing plate 32 fixedly connected to the bottom edge of the hopper 31. Multiple fixing plates 32 are located inside the through groove 16. Side plates 33 are fixedly connected to the outer sides of the fixing plates 32. When raw materials are placed inside the hopper 31, the motor 5, powered by an external power source, rotates the rotating shaft 6. The rotating shaft 6 rotates the L-shaped plate 21 and the fixing ring 22, thereby rotating the fixing rod 23. The fixing rod 23 rotates inside the annular groove 14. The inclined edge 25 of the fixing rod 23 contacts and compresses the extension plate 34 inside the annular groove 14. The extension plate 34, under pressure, causes the fixing plate 32 to move upward inside the through groove 16. Subsequently, the rotating shaft 6 moves the fixing rod 23 away from the extension plate 34. Under the mutual attraction between the extension plate 34 and the protrusion 15, the extension plate 34... The feeding hopper 31 moves downward and vibrates up and down. The feeding hopper 31 can evenly distribute the raw material at the feed inlet of the subsequent screening component 2, avoiding the raw material from concentrating in a certain local area. This allows the raw material to be evenly spread on the screening component 2, making full use of the area of ​​the screening component 2 and improving screening efficiency and quality. The side plates 33 are symmetrically arranged on the outside of the fixed plate 32. The fixed 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. The elastic ring 35 plays a buffering role. The elastic ring 35 is in contact with the top of the fixed ring 22. An extension plate 34 is fixedly connected to the end of the fixed plate 32 away from the feeding hopper 31. The extension plate 34 is magnetic. The protrusion 15 is magnetic. The magnetic properties between the protrusion 15 and the extension plate 34 are opposite. The extension plate 34 is located inside the ring groove 14.

[0044] For the fourth embodiment, please refer to [link / reference]. Figures 7 to 10As shown, the fine screening assembly 4 includes a ring 41, which is fixedly connected to the inner wall of the outer shell 11. A connecting block 45 is fixedly connected to the bottom of the ring 41. Multiple connecting blocks 45 are evenly distributed on the ring 41. A cylinder 44 is fixedly connected to the bottom of each connecting block 45, and 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, powered by an external power source, 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 interior of the circular plate 410 along the spiral plate 42, allowing the material to be more evenly distributed on the circular plate 410, ensuring uniform spreading of the material on the circular plate 410, fully utilizing the screen surface area, and improving screening efficiency. In terms of both effect and quality, an intermediate ring 48 is fixedly connected to the inner wall of the cylinder 44, and a rotating assembly 46 is fixedly connected to the outer side of the rotating shaft 6. The rotating assembly 46 is located at 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 ring 41. The intermediate plate 49 is designed as 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 clumps. At the same time, the channel formed between the fixed frame 43 and the spiral plate 42 can perform preliminary screening of the granular raw material. Smaller particles can pass through the gap between the fixed frame 43 and the spiral plate 42 more easily under the action of the spiral plate, while larger clumps or particles are intercepted. This achieves preliminary separation of materials of different particle sizes. Under the action of centrifugal force, larger particles move towards the middle plate 49 and come into contact with the baffle 413. The spring plate 414 is compressed by force, and the end of the baffle 413 away from the spring plate 414 rotates towards the connecting block 45. At this time, the larger particles enter the gap between the cylinder 44 and the outer shell 11 through the middle plate 49, and are then discharged through the through hole 110. The spiral plate 42 is located inside the middle plate 49, and the baffle 413 is rotatably connected inside the middle plate 49. The side of the baffle 413 near the connecting block 45 is fixedly connected to the spring plate 414, and the end of the spring plate 414 away from the baffle 413 is fixedly connected to the connecting block 45. A fixed frame 43 is fixedly connected to the top of the spiral plate 42. There are multiple fixed frames 43, which are evenly distributed on the spiral plate 42. A circular plate 410 is fixedly connected to the inner wall of the cylinder 44 near the connecting ring 47. Filter holes are opened on the outer side of the circular plate 410. A sleeve 411 is rotatably connected to the shaft 6 near the outer side of the circular plate 410. By setting the sleeve 411 and the trapezoidal ring 412, powder is prevented from entering the gap between the circular plate 410 and the shaft 6, reducing wear, ensuring the smoothness and stability of the shaft rotation, reducing the maintenance cost and failure rate of the equipment, and extending the service life of the parts. A trapezoidal ring 412 is fixedly connected to the end of the sleeve 411. There are two trapezoidal rings 412. The circular plate 410 is located at 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. Multiple rotating rods 462 are evenly distributed around the positioning ring 461. A rotating cylinder 463 is fixedly connected to the outer side of each rotating rod 462. The spiral plate 42 carries the pre-screened raw material onto the circular plate 410. The rotating shaft 6 drives the positioning ring 461 to rotate, causing the positioning ring 461 to drive the rotating rods 462 and the gear 466 to rotate. As the rotating shaft 6 rotates, the gear 466... The connecting ring 47 and the intermediate ring 48 move between each other. Through the meshing of gear 466 with the connecting ring 47 and the intermediate ring 48, gear 466 drives the rotating rod 462 and the rotating drum 463 to rotate. At this time, the rotating drum 463 drives the outer pressure roller 465 to rotate on the circular plate 410, so that the material falls through the filter holes onto the support plate 18. The rotating shaft 6 drives the scraper 7 to rotate, pushing the powder on the support plate 18 to be discharged from the discharge port 17. When the pressure roller 465 rotates, it can apply a certain pressure to the raw material on the circular plate 410, making the raw material more compact on the circular plate 410. The material particles are closely distributed to reduce the gaps between them. Simultaneously, the pressure rollers 465 squeeze and agitate the raw material around the filter holes, causing particles stuck in the filter holes to return to the circular plate 410, reducing filter clogging, ensuring the permeability of the circular plate 410, and maintaining stable screening performance. Multiple circular grooves 464 are evenly distributed on the outer side of the rotating drum 463. Pressure rollers 465 are rotatably connected to the inner walls of the circular grooves 464. The pressure rollers 465 are inclined, enabling… This effectively prevents material from accumulating on the circular plate 410, improves material processing efficiency, and makes the entire screening process smoother. At the same time, the material will continuously change direction during rolling and sliding, increasing the contact opportunities between the material and the filter holes, allowing more powder that meets the particle size requirements to pass through the filter holes, thereby improving the screening accuracy and efficiency. A gear 466 is fixedly connected to the end of the rotating rod 462 away from the positioning ring 461. The gear 466 is located at the interval between the connecting ring 47 and the intermediate ring 48, and the gear 466 meshes with the connecting ring 47 and the intermediate ring 48.

[0046] In use, the raw material is placed inside the feeding hopper 31. The motor 5 is powered by an external power source and drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the L-shaped plate 21 and the fixing ring 22 to rotate, thereby driving 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 the extension plate 34 inside the annular groove 14 and generates pressure. The extension plate 34 is subjected to force, which drives the fixing plate 32 to move upward inside the through groove 16. Then the rotating shaft 6 drives the fixing rod 23 away from the extension plate 34. Under the mutual attraction between the extension plate 34 and the protrusion 15, the extension plate 34 drives the feeding hopper 31 to move downward. The feeding hopper 31 vibrates up and down, and the feeding hopper 31 can evenly distribute the raw material at the feed inlet of the subsequent screening component 2.

[0047] Raw materials are fed into the screening assembly 2 through the hopper 31. The motor 5, powered by an external power source, drives the rotating shaft 6 to rotate. This, in turn, causes the L-shaped plate 21 and the fixing ring 22 to rotate, resulting in the raw materials rotating within the frame. The raw materials then pass through the gap between the L-shaped plate 21 and the fixing ring 22, thus performing preliminary screening. Simultaneously, the rotating shaft 6 drives the fixing rod 23 to rotate within the annular groove 14. The roller 24 at the bottom of the fixing rod 23 contacts and compresses the protrusion 15 inside the annular groove 14. The roller 24, under this force, causes the frame to move upwards. As the rotating shaft 6 rotates, the frame vibrates up and down.

[0048] The raw material falls onto the spiral plate 42 through the filter plate 8. The motor 5 is powered by an external power source. The motor 5 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 interior of the circular plate 410 along the spiral plate 42.

[0049] The rotating shaft 6 drives the positioning ring 461 to rotate, which in turn 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 drum 463 to rotate. At this time, the rotating drum 463 drives the outer pressure roller 465 to rotate on the circular plate 410, so that the material falls through the filter holes onto the support plate 18. The rotating shaft 6 drives the scraper 7 to rotate, pushing the powder on the support plate 18 to be discharged from the outlet 17.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

Claims

1. A raw material screening device for stone paper processing, characterized in that, include: A housing (1) is fixedly connected to a motor (5) at the bottom center of the housing (1), and a rotating shaft (6) is fixedly connected to the output end of the motor (5). A buffer assembly (3) is fixedly mounted on the top of the housing (1); Screening assembly (2), which is disposed inside the housing (1) and located below the buffer assembly (3); Fine sieve assembly (4), which is fixedly installed inside the housing (1) and located below the screening assembly (2); 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 a motor (5), the output end of the motor (5) passes through the support plate (18), an annular groove (14) is provided inside the outer shell (11), a protrusion (15) is fixedly connected to the inner wall of the annular groove (14), there are multiple protrusions (15), and the multiple protrusions (15) are evenly distributed inside the annular groove (14), and a discharge port (17) is provided on the outer side of the outer shell (11) near the support plate (18). The screening assembly (2) includes an L-shaped plate (21), and there are multiple L-shaped plates (21). A fixing ring (22) is fixedly connected to the outer side of the L-shaped plate (21). 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 by multiple fixing rings (22). A fixing rod (23) is fixedly connected to the top of the fixing ring (22). A roller (24) is rotatably connected to the bottom of the fixing rod (23). 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), the side plates (33) are symmetrically arranged outside 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), the elastic ring (35) contacts the top of the fixing ring (22), an extension plate (34) is fixedly connected to the end of the fixing plate (32) away from the feeding hopper (31), the extension plate (34) is located inside the ring groove (14); The fine sieve assembly (4) includes a ring (41), which is fixedly connected to the inner wall of the outer shell (11). A connecting block (45) is fixedly connected to the bottom of the ring (41). There are multiple connecting blocks (45), which are evenly distributed on the 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 outer side of the rotating shaft (6). The rotating assembly (46) is located at the interval between the intermediate ring (48) and the connecting ring (47). The inner wall of the ring (41) is fixedly connected to an intermediate plate (49), which is a bent plate. The outer side of the rotating shaft (6) is fixedly connected to a spiral plate (42), which is located inside the intermediate plate (49). The interior of the intermediate plate (49) is rotatably connected to a stop (413). A spring plate (414) is fixedly connected to the side of the stop (413) near the connecting block (45). The end of the spring plate (414) away from the stop (413) is fixedly connected to the connecting block (45). A fixed frame (43) is fixedly connected to the top of the spiral plate (42). There are multiple fixed frames (43) evenly distributed on the spiral plate (42). A circular plate (410) is fixedly connected to the inner wall of the cylinder (44) near the connecting ring (47). Filter holes are opened on the outer side of the circular plate (410). A sleeve (411) is rotatably connected to the shaft (6) near the outer side of the circular plate (410). A trapezoidal ring (412) is fixedly connected to the end of the sleeve (411). There are two trapezoidal rings (412). The circular plate (410) is located at the interval between the two trapezoidal rings (412). 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). A rotating cylinder (463) is fixedly connected to the outer side of the rotating rod (462). The outer side of the rotating drum (463) is provided with a circular groove (464). There are multiple circular grooves (464) evenly distributed on the outer side of the rotating drum (463). The inner wall of the circular groove (464) is rotatably connected to a pressure roller (465). The end of the rotating rod (462) away 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) meshes with the connecting ring (47) and the intermediate ring (48).

2. The raw material screening device for stone paper processing according to claim 1, characterized in that: A compression spring (9) is fixedly connected inside the housing (1). A filter plate (8) is fixedly connected to the end of the compression spring (9) away from the housing (1). The filter plate (8) is slidably connected to the inside of the housing (1). The rotating shaft (6) passes through the filter plate (8). A scraper (7) is fixedly connected to the outside of the rotating shaft (6). There are multiple scrapers (7), and the 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, characterized in that: The inner wall of the outer shell (11) is provided with a sliding groove (12). The filter plate (8) is slidably connected to the inner wall of the outer shell (11) through the sliding groove (12). A limiting plate (13) is fixedly connected to the outer side of the sliding groove (12). The compression spring (9) is located inside the sliding groove (12) and the limiting plate (13). A through groove (16) is provided on the side of the outer shell (11) near the annular groove (14). The through groove (16) is perpendicular to the annular groove (14). There are multiple through grooves (16). Multiple through grooves (16) are evenly distributed inside the outer shell (11). A support cylinder (19) is fixedly connected to the bottom edge of the support plate (18). The motor (5) is located inside the support cylinder (19). A through hole (110) is provided on the outer side of the outer shell (11). The through hole (110) is located on the same horizontal plane as the fine screen assembly (4).

4. The raw material screening device for stone paper processing according to claim 3, characterized in that: There are four fixing rods (23), which are evenly distributed around the fixing ring (22). The roller (24) is located at the end of the fixing rod (23) away from the fixing ring (22). The top of the fixing rod (23) is provided with a bevel (25).

Images