A type of hot-drill vibrating screen with negative pressure dust collection

Abstract

This invention relates to the field of screening equipment technology, specifically a vibrating screen for hot-drilling equipment with negative pressure dust collection. It includes a support frame, to which circumferentially distributed first elastic elements are fixedly connected. These first elastic elements are collectively fixed to a screening cylinder. A screen cylinder cover is fixedly connected to the support frame. The screening cylinder is fixedly connected to a first screen, a second screen, and a bottom baffle. Both the first and second screens have an array of circumferentially distributed screen holes. A third screen is rotatably connected to the screening cylinder. An air supply module is installed on the support frame. This invention uses the screening cylinder, second screen, third screen, and bottom baffle to form a sealed cavity. The air supply module continuously supplies air into the sealed cavity, increasing the pressure within the cavity. When the screen holes on the second and third screens connect, the lower airflow impacts the blocking particles upwards, achieving the purpose of clearing the blockage caused by hot-drilling particles.

Description

Technical Field

[0001] This invention relates to the field of screening equipment technology, and specifically proposes a hot-drill vibrating screen with negative pressure dust collection. Background Technology

[0002] Hot-fix rhinestones are commonly used decorative particles in the apparel, jewelry, and bag industries. During the production and processing of hot-fix rhinestone particles, they need to be sieved by size using a vibrating screen to meet the processing requirements of downstream products. However, hot-fix rhinestone particles are small in size and irregular in shape. When existing vibrating screens are used to sieve hot-fix rhinestone particles, they are prone to getting stuck in the screen holes. This prevents rhinestone particles smaller than the screen hole size from passing through smoothly, which not only compromises the accuracy of sieving and grading but also causes screen blockage, leading to interruptions in the sieving process and reducing the sieving efficiency of hot-fix rhinestone particles. This makes it difficult to meet the needs of industrialized mass production of hot-fix rhinestones. Summary of the Invention

[0003] To overcome the drawback of hot-rhine particles clogging the screen and preventing particles smaller than the screen aperture from passing through, this invention provides a hot-rhine vibrating screen with negative pressure dust collection.

[0004] The technical solution of this invention is: a hot-drill vibrating screen with negative pressure dust collection, comprising a support frame, wherein the support frame is fixedly connected to circumferentially distributed first elastic elements, the circumferentially distributed first elastic elements are jointly fixedly connected to a screening cylinder, the support frame is provided with a vibration module for driving the screening cylinder to vibrate up and down, the support frame is fixedly connected to a screen cylinder cover slidably connected to the screening cylinder, the screening cylinder is fixedly connected to a first screen, a second screen and a bottom baffle, both the first screen and the second screen are provided with arrayed and circumferentially distributed screen holes, the screening cylinder rotates... A third screen is rotatably connected to the second screen. The screen cylinder cover is equipped with a first drive module for driving the third screen to rotate and a negative pressure component. An air supply module is installed on the support frame. The air outlet of the air supply module is connected to the screening cylinder through a pipe, and the connection port is located above the bottom baffle. The screening cylinder is slidably connected to a sealing baffle that fits against the bottom baffle and is used to cover the screening cylinder. A centrifugal component is provided on the second screen for centrifugally throwing hot diamonds onto the second screen.

[0005] More preferably, the centrifugal assembly includes a rotating cylinder, which is slidably and rotatably connected to the bottom baffle. A centrifugal disc is fixedly connected to the rotating cylinder, and the centrifugal disc has circumferentially distributed arc-shaped openings. The rotating cylinder contacts the second screen. Symmetrically distributed first push rods are fixedly connected to the support frame. The telescopic ends of the symmetrically distributed first push rods are jointly fixedly connected to a first support plate. The first support plate is slidably and rotatably connected to the rotating cylinder and to the screening cylinder. A second drive module is provided on the support frame to drive the rotating cylinder to rotate. A separating component is provided on the second screen to divide the second screen into two parts. A discharge component is provided on the rotating cylinder to discharge the material on the second screen.

[0006] More preferably, the separating component includes circumferentially distributed fixed baffles, all of which are fixedly connected to the second screen. The fixed baffles are slidably connected to rotating baffles, which are slidably connected to the second screen. The circumferentially distributed rotating baffles are all fixedly connected to a connecting bracket, which is slidably connected to the screening cylinder. A third driving module is provided on the screen cylinder cover, which is used to drive the connecting bracket to rotate.

[0007] More preferably, the third screen is provided with a first group of holes and a second group of holes distributed circumferentially, with the first group of holes located on the outside of all the fixed baffles and the second group of holes located on the inside of all the fixed baffles. The first group of holes has a first arc-shaped hole evenly distributed, and the second group of holes has a second arc-shaped hole evenly distributed. The first arc-shaped hole on the first group of holes and the corresponding second arc-shaped hole on the second group of holes correspond one-to-one with the screen holes in the same column on the second screen.

[0008] More preferably, the flow area of ​​all the first arc-shaped holes in the same first hole group gradually decreases from the side closer to the axis of the third screen to the side farther away, and the flow area of ​​all the second arc-shaped holes in the same second hole group gradually increases from the side closer to the axis of the third screen to the side farther away. The flow area of ​​the first arc-shaped holes in the first hole group is greater than the flow area of ​​the second arc-shaped holes in the second hole group. One side edge of all the first arc-shaped holes in the first hole group is collinear with the same side edge of all the second arc-shaped holes in the corresponding second hole group.

[0009] More preferably, the centrifugal disc is configured as an inwardly concave arc surface with strip-shaped protrusions on its surface.

[0010] More preferably, the unloading assembly includes a splined cylinder slidably connected to the rotating cylinder, the splined cylinder passing through the support frame, a sealing plate fixedly connected to the splined cylinder for sealing the centrifugal disc, a second support plate rotatably connected to the splined cylinder, and symmetrically distributed second push rods on the rotating cylinder, the telescopic ends of which are fixedly connected to the second support plate.

[0011] More preferably, it further includes a layering component, which drives the centrifugal disc to vibrate up and down. The layering component includes a third support plate, which is rotatably connected to the rotating cylinder. Symmetrically distributed second push rods are all fixedly connected to the third support plate. A second elastic element is provided between the first support plate and the third support plate. A symmetrically distributed fourth drive module is fixedly connected to the first support plate. The fourth drive module is used to drive the third support plate to vibrate up and down. A separation retaining ring is provided on the screen cylinder cover. The separation retaining ring is slidably connected to the first screen and is used to surround the upper side of the centrifugal disc. A separation component is provided on the screen cylinder cover. The separation component is used to drive the separation retaining ring to move.

[0012] More preferably, the separation component includes symmetrically distributed third push rods, all of which are fixedly connected to the screen cylinder cover. The telescopic ends of the symmetrically distributed third push rods are jointly fixedly connected to a support ring. The support ring is slidably connected to the screen cylinder cover and is fixedly connected to the separation retaining ring.

[0013] More preferably, the separating retaining ring is rotatably connected to a rotating rod, the screen cylinder cover is fixedly connected to a fixed bracket, the fixed bracket is fixedly connected to a sliding rod, the sliding rod is slidably and rotatably connected to the rotating rod, the rotating rod is fixedly connected to symmetrically distributed scrapers, and the scrapers are slidably connected to the separating retaining ring.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention forms a sealed cavity by means of a screening cylinder, a second screen, a third screen and a bottom baffle, and continuously supplies air into the sealed cavity through an air supply module, so as to increase the pressure in the sealed cavity. When the screen holes on the second screen and the third screen are connected, the air below impacts the blocked particles upward, thereby clearing the blockage of hot diamond particles and improving the screening efficiency of the vibrating screen for hot diamond particles.

[0015] This invention uses a centrifugal disc to centrifuge and disperse the material on the second screen, causing the particle size of the dispersed material to gradually decrease from the outside to the inside. In conjunction with a fixed baffle and a rotating baffle, some hot-drill particles are distributed on the outside of the second screen, reducing the probability of hot-drill particles clogging the inside of the fixed baffle and increasing the probability of hot-drill particles passing through the screen.

[0016] This invention uses a centrifugal disc and a separating baffle to vibrate the hot-drill particles up and down, achieving a layered effect based on the particle size. A second pusher then causes the hot-drill particles located within the separating baffle to fall onto the first screen in stages according to their particle size distribution, reducing the probability of material blockage on the first screen and improving its screening efficiency. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram provided in the embodiments of this application is shown; Figure 2 This paper shows a three-dimensional structural cross-sectional view of the support frame and screening cylinder provided in the embodiments of this application; Figure 3 A three-dimensional structural diagram of the fixed baffle and the rotating baffle provided in the embodiments of this application is shown; Figure 4 A three-dimensional structural schematic diagram of the second and third screens provided in the embodiments of this application is shown; Figure 5 A three-dimensional cross-sectional view of the second and third screens provided in the embodiments of this application is shown; Figure 6 A three-dimensional structural schematic diagram of the first support plate and rotating cylinder provided in the embodiments of this application is shown; Figure 7 A three-dimensional structural cross-sectional view of the rotating cylinder provided in the embodiment of this application is shown; Figure 8 An exploded three-dimensional view of the centrifuge disc and sealing plate provided in the embodiments of this application is shown; Figure 9 A three-dimensional structural cross-sectional view of the sieve cylinder cover provided in an embodiment of this application is shown; Figure 10 A three-dimensional structural cross-sectional view of the rotating rod provided in an embodiment of this application is shown.

[0018] The following reference numerals are included in the accompanying drawings of the following specification: 1-Support frame, 2-First elastic element, 3-Screening cylinder, 4-Vibration module, 5-Screening cylinder cover, 6-First screen, 7-Second screen, 8-Third screen, 80-First hole group, 801-First arc-shaped hole, 81-Second hole group, 811-Second arc-shaped hole, 9-First drive module, 10-Bottom baffle, 11-Air supply module, 12-Sealing baffle, 13-Negative pressure component, 20-Rotating cylinder, 201-Centrifugal disc, 21- 22-First push rod, 23-Second drive module, 30-Fixed baffle, 31-Rotating baffle, 32-Connecting bracket, 33-Third drive module, 40-Splined cylinder, 401-Blocking plate, 41-Second support plate, 42-Second push rod, 50-Third support plate, 51-Second elastic element, 52-Fourth drive module, 53-Separation retaining ring, 54-Third push rod, 55-Support ring, 60-Rotating rod, 61-Fixed bracket, 62-Sliding rod, 63-Scraper. Detailed Implementation

[0019] 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.

[0020] In the following embodiments, hot-fix rhinestone particles with a particle size larger than the aperture of the first screen 6 are called large-diameter hot-fix rhinestone particles, hot-fix rhinestone particles with a particle size smaller than the aperture of the first screen 6 but larger than the aperture of the second screen 7 are called target-diameter hot-fix rhinestone particles, and hot-fix rhinestone particles with a particle size smaller than the aperture of the second screen 7 are called small-diameter hot-fix rhinestone particles. Example 1

[0021] A type of hot-drill vibrating screen with negative pressure dust collection, for comparison. Figures 1-5As shown, the system includes a support frame 1, with circumferentially distributed first elastic elements 2 fixedly connected to the support frame 1. The first elastic elements 2 are existing springs. The circumferentially distributed first elastic elements 2 are collectively fixedly connected to a screening cylinder 3. The first elastic elements 2 are located at the bottom of the screening cylinder 3. The screening cylinder 3 has a first discharge port and a second discharge port. The first discharge port on the screening cylinder 3 is located above the second discharge port. The support frame 1 is equipped with a vibration module 4, which consists of a servo motor and a protrusion. The protrusion of the vibration module 4 contacts the lower part of the screening cylinder 3. The vibration module 4 is used to drive the screening cylinder 3 to vibrate up and down. The support frame 1 is fixedly connected to a screen cylinder cover 5. The screen cylinder cover 5 has a material inlet on its upper side. The screen cylinder cover 5 is slidably connected to the screening cylinder 3. The screening cylinder 3 is fixedly connected to a first screen 6 and a second screen 7. The first screen 6... Screen 6 is located above the second screen 7, and the upper side of the first screen 6 is aligned with the lower side of the first discharge port on the screening cylinder 3. The first screen 6 is a funnel-shaped screen with a smaller top and a larger bottom, which allows the hot-drill particles on it to move to the periphery. The first screen 6 is in an inclined state, and the height of the side of the first screen 6 near the first discharge port of the screening cylinder 3 is lower than that of the opposite side, which facilitates the discharge of the hot-drill particles on the first screen 6. The second screen 7 is a funnel-shaped screen with a larger top and a smaller bottom, which guides the material on the second screen 7 to move to its center. Both the first screen 6 and the second screen 7 are provided with an array of circumferentially distributed screen holes. The diameter of the screen holes on the first screen 6 is larger than that on the second screen 7. The lower side of the screen holes on the second screen 7 is provided with an inclined surface. The screening cylinder 3 is rotatably connected to the second screen 7. A third screen 8 is rotatably connected. The third screen 8 is funnel-shaped, wider at the top and narrower at the bottom, and is located below and in contact with the second screen 7. The screen cylinder cover 5 is equipped with a first drive module 9, which consists of a servo motor and a gear rack. The output shaft of the servo motor on the first drive module 9 is fixedly connected to the gear. The third screen 8 is fixedly connected to the rack of the first drive module 9. The gear on the first drive module 9 meshes with the rack. The first drive module 9 is used to drive the third screen 8 to rotate. The gear of the first drive module 9 is thicker than the rack, so that when the screening cylinder 3 drives the third screen 8 and the rack of the first drive module 9 to vibrate up and down, the gear of the first drive module 9 remains meshed with the rack. A bottom baffle 10 is fixedly connected to the screening cylinder 3. The bottom baffle 10 is located at the... Below the second screen 7, the upper side of the bottom baffle 10 is aligned with the lower side of the second discharge port of the screening cylinder 3. The bottom baffle 10 is funnel-shaped, wider at the bottom than the top, to facilitate the movement of particles to the periphery. The bottom baffle 10 is inclined, and the side of the bottom baffle 10 near the second discharge port of the screening cylinder 3 is lower than the opposite side, thus guiding the hot-drilled particles to the second discharge port of the screening cylinder 3. The screening cylinder 3, the second screen 7, the third screen 8, and the bottom baffle 10 together form a gas storage chamber. An air supply module 11 is installed on the support frame 1. The air supply module 11 is an existing blower. The air outlet of the air supply module 11 is connected to the screening cylinder 3 through a pipe, and this connection port is located above the bottom baffle 10. The air supply module 11 is used to pump gas into the aforementioned gas storage chamber.The screening cylinder 3 is slidably connected to a sealing baffle 12, and the sealing baffle 12 is provided with a protruding columnar handle for easy manual handling (e.g., Figure 1 As shown), the screening cylinder 3 is provided with a moving groove to facilitate the movement of the sealing baffle 12. The hand-held part of the sealing baffle 12 slides in the moving groove on the screening cylinder 3. The sealing baffle 12 is located at the second discharge port of the screening cylinder 3. The sealing baffle 12 is used to block the second discharge port on the screening cylinder 3. The sealing baffle 12 is in contact with the bottom baffle 10 and is located on the upper side of the bottom baffle 10. The screen cylinder cover 5 is provided with a negative pressure component 13, which consists of a negative pressure suction ring and a suction pump. The second screen 7 is provided with a centrifugal component, which is used to centrifugally throw the hot diamonds onto the second screen 7.

[0022] Comparison Figures 1-3 and Figures 6-9As shown, the centrifugal assembly includes a rotating cylinder 20, on which a first sliding groove and a second sliding groove are formed. The first sliding groove on the rotating cylinder 20 is located below the second sliding groove. The rotating cylinder 20 is slidably and rotatably connected to the middle of a bottom baffle 10. The bottom baffle 10 is located on the second sliding groove of the rotating cylinder 20. In the initial non-working state, the bottom baffle 10 is in contact with the upper side of the second sliding groove on the rotating cylinder 20, thereby supporting the rotating cylinder 20 through the bottom baffle 10. A centrifugal disc 201 is fixedly connected to the rotating cylinder 20. The centrifugal disc 201 has circumferentially distributed arc-shaped openings and a discharge port. The discharge port on the centrifugal disc 201 is fan-shaped, with arc-shaped openings and discharge ports interspersed. The width of the arc-shaped openings on the centrifugal disc 201 is smaller than the diameter of the sieve holes on the second sieve 7. The arc-shaped openings on the centrifugal disc 201 are used to discharge dust from the centrifugal disc 201, and the discharge port on the centrifugal disc 201 is used to discharge the hot-dip tin particles remaining on the second sieve 7 after screening. The rotating cylinder 20 is in contact with the second sieve 7. Two symmetrically distributed first push rods 21 are fixed on the support frame 1. The first push rods 21 are existing hydraulic push rods. The length of the second sliding groove of the rotating cylinder 20 is greater than the travel stroke of the first push rods 21. The telescopic ends of the two symmetrically distributed first push rods 21 are jointly fixed to a first support plate 22. The telescopic ends of the two symmetrically distributed first push rods 21 jointly drive the first support plate 22, facilitating its smooth sliding. The first support plate 22 is slidably and rotatably connected to the rotating cylinder 20. The first support plate 22 is located on the first sliding groove of the rotating cylinder 20. The first support plate 22 is slidably connected to the screening cylinder 3. A second drive module 23 is provided on the support frame 1. The second drive module 23 consists of a servo motor and two gears. The output shaft of the servo motor on the second drive module 23 is fixedly connected to one of the gears. The rotating cylinder... The rotating drum 20 is fixedly connected to another gear on the second drive module 23. The two gears on the second drive module 23 mesh with each other. The second drive module 23 is used to drive the rotating drum 20 to rotate. The gear on the second drive module 23 that is fixedly connected to the servo motor is thicker than the gear that is fixedly connected to the rotating drum 20, so that the two gears on the second drive module 23 can still maintain meshing when the rotating drum 20 moves up and down. A separating component is provided on the second screen 7. The separating component is used to divide the second screen 7 into two parts. A discharge component is provided on the rotating drum 20. The discharge component is used to discharge the material on the second screen 7.

[0023] Comparison Figures 1-4As shown, the separating component includes circumferentially distributed fixed baffles 30, all of which are fixedly connected to the second screen 7. Rotating baffles 31 are slidably connected to the fixed baffles 30, and are slidably connected to the second screen 7. The fixed baffles 30 and rotating baffles 31 together form an annular baffle to divide the second screen 7 into two areas. A connecting bracket 32 ​​is fixedly connected to the circumferentially distributed rotating baffles 31, and is slidably connected to the screening cylinder 3. A third drive module 33 is provided on the screen cylinder cover 5. The third drive module 33 consists of a servo motor and a gear rack. The output shaft of the servo motor on the third drive module 33 is fixedly connected to the gear. The connecting bracket 32 ​​and... The rack of the third drive module 33 is fixedly connected, and the gear on the third drive module 33 meshes with the rack. The third drive module 33 is used to drive the connecting bracket 32 ​​to rotate. The gear of the third drive module 33 is thicker than the rack, so that when the screening cylinder 3 drives the connecting bracket 32 ​​and the rack of the third drive module 33 to vibrate up and down, the gear of the third drive module 33 and the rack remain meshed. The centrifugal disc 201 is set as an inwardly concave arc surface and its surface is provided with strip-shaped protrusions. The arc surface is used to make the hot-drill particles gather towards the center, reducing the probability of hot-drill particles accumulating at the edge of the centrifugal disc 201, making it easier to collect. The strip-shaped protrusions are used to drive the material to rotate synchronously when the centrifugal disc 201 rotates, preventing slippage and improving the centrifugation effect.

[0024] Comparison Figure 4 and Figure 5As shown, the third screen 8 is provided with a first group of holes 80 and a second group of holes 81 distributed circumferentially. The first group of holes 80 is located outside all the fixed baffles 30, and the second group of holes 81 is located inside all the fixed baffles 30. The first group of holes 80 has two evenly distributed first arc-shaped holes 801, and the second group of holes 81 has three evenly distributed second arc-shaped holes 811. The first arc-shaped holes 801 on the first group of holes 80 and the corresponding second arc-shaped holes 811 on the second group of holes 81 correspond one-to-one with the screen holes in the same column on the second screen 7. The upper side of the first arc-shaped holes 801 and the second arc-shaped holes 811 is provided with An inclined surface corresponding to the screen holes on the second screen 7 is provided. During rotation, the inclined surfaces on the first arc-shaped hole 801 and the second arc-shaped hole 811 gradually press upwards to squeeze the hot-drill particles stuck in the screen holes of the second screen 7. When the third screen 8 rotates, the inclined surfaces on the screen holes of the second screen 7, together with the inclined surfaces on the first arc-shaped hole 801 and the second arc-shaped hole 811, together form an inclined guide hole, causing the air in the air storage chamber to be blown obliquely towards the material stuck in the screen holes of the second screen 7, achieving a better pulse clearing effect. The flow area of ​​all the first arc-shaped holes 801 within the same first hole group 80 increases from the side closest to the axis of the third screen 8. The flow area of ​​all the second arc-shaped holes 811 in the same second hole group 81 gradually increases from the side closest to the axis of the third screen 8 to the side furthest away. The flow area of ​​the first arc-shaped holes 801 in the first hole group 80 is larger than the flow area of ​​the second arc-shaped holes 811 in the second hole group 81. One side edge of all the first arc-shaped holes 801 in the first hole group 80 is collinear with the same side edge of all the second arc-shaped holes 811 in the corresponding second hole group 81. Here, the three second arc-shaped holes 811 on the same second hole group 81 are named hole one, hole two, and hole three respectively from the side closest to the axis of the third screen 8 to the side furthest away. Hole 3: The two first arc-shaped holes 801 on the same first hole group 80 are named Hole 4 and Hole 5 from the side closest to the axis of the third screen 8 to the side furthest away. In this way, during the rotation and connection process of the screen holes on the second screen 7, Hole 4 on the third screen 8 first connects with the corresponding screen hole on the second screen 7, and then Hole 5, Hole 3, Hole 2 and Hole 1 connect with the corresponding screen holes on the second screen 7 in sequence. This makes the screen hole on the second screen 7 most likely to be blocked by hot drill particles connect with the screen hole on the third screen 8 first. The connection order of the screen holes is determined by the probability of screen blockage, thereby achieving a stronger pulse clearing effect on the screen holes that are more likely to be blocked.

[0025] Comparison Figures 6-9As shown, the unloading assembly includes a splined cylinder 40, which is slidably connected to a rotating cylinder 20. The rotating cylinder 20 has a spline groove corresponding to the spline on the splined cylinder 40. The splined cylinder 40 passes through the support frame 1. A sealing plate 401 is fixedly connected to the splined cylinder 40. The sealing plate 401 is used to seal the unloading port on the centrifugal disc 201. The splined cylinder 40 is rotatably connected to a second support plate 41. The rotating cylinder 20 is provided with two symmetrically distributed second push rods 42. In this embodiment, the rotating cylinder 20 and the second push rods 42 are fixedly connected. The second push rods 42 are existing electric push rods. The telescopic ends of the two symmetrically distributed second push rods 42 are fixedly connected to the second support plate 41. The two symmetrically distributed second push rods 42 are used to ensure that the second support plate 41 is balanced under force during movement.

[0026] Working principle: Before screening the hot-fix rhinestones, all vibration modules 4 and negative pressure components 13 are first activated. Vibration modules 4 drive the screening cylinder 3 to vibrate up and down. The screening cylinder 3 drives the first screen 6, the second screen 7, the third screen 8, and the bottom baffle 10 to vibrate synchronously. The bottom baffle 10 contacts the upper side of the second sliding groove of the rotating cylinder 20. The bottom baffle 10 drives the rotating cylinder 20 and the centrifugal disc 201 to vibrate up and down synchronously. When screening the hot-fix rhinestone particles, a certain amount of hot-fix rhinestone particles are injected into the screening cylinder 3 through the feeding port on the screen cover 5. The hot-fix rhinestone particles fall onto the first screen 6 (in this embodiment, the first screen 6 is a complete screen). The first screen 6 drives the hot-fix rhinestone particles on it to vibrate, which facilitates the target particle size hot-fix rhinestone particles and small particle size hot-fix rhinestone particles on the first screen 6 to pass through the screen holes of the first screen 6 and fall downwards. Large particle size hot-fix rhinestone particles remain on the first screen 6 and move to its edge. The hot-fix rhinestone particles that pass through the screen holes of the first screen 6 fall onto the second screen 7. The shape of the second screen 7 causes the hot-fix rhinestone particles on it to move towards the center and collect on the centrifugal disc 201. During this process, some small-diameter hot-fix rhinestone particles pass through the second screen 7 and fall onto the bottom baffle 10. After the hot-fix rhinestone particles on the second screen 7 collect on the centrifugal disc 201, the two first push rods 21 are activated. The two first push rods 21 together drive the first support plate 22 to move upward. The first support plate 22 gradually approaches the upper side of the first sliding groove on the rotating cylinder 20. Then, the first support plate 22 drives the rotating cylinder 20 to move upward synchronously. The upper side of the second sliding groove of the rotating cylinder 20 loses contact with the bottom baffle 10. The rotating cylinder 20 drives the spline cylinder 40 and the sealing plate 401 to move upward synchronously through the second push rod 42 and the second support plate 41, ensuring that the sealing plate 401 always blocks the discharge port of the centrifugal disc 201. When the centrifugal disc 201 moves to the upper part above the fixed baffle 30 and below the first screen 6, all the first push rods 21 are closed.

[0027] During the upward movement of the first support plate 22, the first drive module 9 and the air supply module 11 are activated. The first drive module 9 drives the third screen 8 to rotate. During the rotation of the third screen 8, the first hole group 80 and the second hole group 81 of the third screen 8 gradually intersect with the corresponding screen holes of the second screen 7. The third screen 8 pushes the hot-drill particles stuck in the screen holes of the second screen 7 upward, loosening the hot-drill particles stuck in the screen holes of the second screen 7, until all the screen holes on the second screen 7 and the screen holes on the third screen 8 are intersected. Then the first drive module 9 stops, and the second screen 7 and the third screen 8 are aligned with the screening cylinder. The air storage chamber of the screening cylinder 3 is sealed, and the air supply module 11 continuously supplies air into the air storage chamber of the screening cylinder 3, increasing the pressure inside. After the air supply is continuously supplied for a certain period of time, the first drive module 9 is controlled to drive the third screen 8 to rotate in the opposite direction, so that the screen holes of the second screen 7 and the screen holes of the third screen 8 gradually overlap. The air in the air storage chamber of the screening cylinder 3 impacts upward through the screen holes of the second screen 7 and the third screen 8 that overlap, impacting the hot drill particles that are blocking the material, reducing the phenomenon of hot drill particles blocking the screen holes, and at the same time carrying away the dust in the material, blowing it to the upper end of the screening cylinder 3, where it is collected by the negative pressure component 13.

[0028] After closing the first push rod 21, the third drive module 33 is activated. The third drive module 33 drives the connecting bracket 32 ​​to rotate, which in turn drives all the rotating baffles 31 to rotate. The rotating baffles 31 and the fixed baffles 30 move relative to each other until the rotating baffles 31 contact the two adjacent fixed baffles 30. The third drive module 33 is then closed. The rotating baffles 31 and the fixed baffles 30 separate the second screen 7 into inner and outer parts. Subsequently, the second drive module 23 is activated, which drives the rotating cylinder 20 to rotate. The rotating cylinder 20 drives the splined cylinder 40 and the centrifugal disc 201 to rotate synchronously. The splined cylinder 40 drives the sealing plate 401 to rotate synchronously, thus... During the rotation of the centrifugal disc 201, the sealing plate 401 continuously seals the centrifugal disc 201, causing the hot-drill particles on it to rotate. The centrifugal force generated by the rotation centrifuges the hot-drill particles on the centrifugal disc 201, causing the hot-drill particles to be dispersed at different positions on the second screen 7 according to their own particle size. That is, the particle size of the hot-drill particles gradually decreases from the outside to the inside, so that the outer side of the fixed baffle 30 and the rotating baffle 31 is mainly occupied by hot-drill particles of the target particle size, while the small-diameter hot-drill particles are mainly located on the inner side. This partitions the hot-drill particles, reducing the probability of the target particle size hot-drill particles clogging the screen holes on the second screen 7 and affecting the passage of small-diameter hot-drill particles.

[0029] After centrifugation is completed on centrifuge disc 201, the second drive module 23 is turned off, and all first push rods 21 are activated. The telescopic ends of the first push rods 21 drive the first support plate 22 to move downward. Under the action of gravity, the upper side of the first sliding groove of the rotating cylinder 20 remains in contact with the first support plate 22. The rotating cylinder 20 moves downward synchronously with the first support plate 22. When the upper side of the second sliding groove of the rotating cylinder 20 contacts the bottom baffle 10, the rotating cylinder 20 moves relative to the first support plate 22. The rotating cylinder 20 vibrates up and down synchronously with the bottom baffle 10, ensuring that the centrifuge disc 201 is flush with the second screen 7 and moves synchronously, so that the material on the second screen 7 can slide smoothly onto the centrifuge disc 201. The extension of the first push rod 21... The constricting end continues to push the first support plate 22 downward until the first support plate 22 returns to its initial position. The two first push rods 21 close, and the second screen 7 and the third screen 8 screen the hot-fix rhinestone particles on them. After a fixed screening time, the third drive module 33 is started to reverse. The third drive module 33 drives the connecting bracket 32 ​​to rotate in the opposite direction. The connecting bracket 32 ​​drives all the rotating baffles 31 to rotate, releasing the obstruction of the fixed baffle 30 and the rotating baffle 31 on the hot-fix rhinestone particles on the second screen 7. This allows the external hot-fix rhinestone particles on the second screen 7 to gather towards the central centrifugal disc 201, and the dust gathered in the center is discharged through the arc-shaped opening on the centrifugal disc 201. Then, the above steps are repeated to screen the hot-fix rhinestone particles.

[0030] After the screening of this batch of rhinestone particles is completed, the baffle plate at the first discharge port of the screening cylinder 3 and the sealing baffle plate 12 at the second discharge port of the screening cylinder 3 are opened to allow the rhinestone particles on the first screen 6 and the bottom baffle plate 10 to be discharged and collected. Then, all the second push rods 42 are activated. The telescopic ends of the second push rods 42 drive the splined cylinder 40 to move downward through the second support plate 41. The splined cylinder 40 drives the sealing plate 401 to move downward. The sealing plate 401 releases the seal on the discharge port of the centrifugal disc 201, allowing the centrifugal disc to discharge. When the discharge port on 201 is opened, the hot-drill particles on the second screen 7 pass through the discharge port of the centrifugal disc 201 and are discharged and collected inside the splined cylinder 40. After collection, all the second push rods 42 are controlled. The telescopic ends of the second push rods 42 drive the splined cylinder 40 to move upward through the second support plate 41 until it returns to its original position. Then, all the second push rods 42, vibration module 4 and negative pressure component 13 are closed. Subsequently, the baffle plate of the first discharge port of the screening cylinder 3 and the sealing baffle plate 12 of the second discharge port of the screening cylinder 3 are closed. Example 2

[0031] Based on Example 1, compared with Figure 2 , Figure 6 and Figure 9As shown, it also includes a layered assembly, which is used to drive the centrifugal disc 201 to vibrate up and down. The layered assembly includes a third support plate 50, which is located below the first support plate 22, and a sliding support rod is provided on the third support plate 50. The sliding support rod on the third support plate 50 is slidably connected to the first support plate 22. The third support plate 50 is rotatably connected to the rotating cylinder 20. Two symmetrically distributed second push rods 42 are fixedly connected to the third support plate 50. A second elastic element 51, which is a spring, is provided between the first support plate 22 and the third support plate 50. Two symmetrically distributed fourth drive modules 52 are fixedly connected to the first support plate 22. The fourth drive modules 52 are driven by servo motors. The system consists of a servo motor, a take-up roller, and a traction rope. The traction rope of the fourth drive module 52 is fixedly connected to the third support plate 50. The servo motor of the fourth drive module 52 drives the take-up roller to rotate, so that the traction rope of the fourth drive module 52 can be wound and unwound to make the third support plate 50 vibrate up and down. The two fourth drive modules 52 make the third support plate 50 balanced by forces during movement. A separation retaining ring 53 is provided on the screen cylinder cover 5. The separation retaining ring 53 is slidably connected to the first screen 6. The separation retaining ring 53 is used to block the upper side of the centrifugal disc 201. The separation retaining ring 53 and the centrifugal disc 201 can form a collection trough together. A separation component is provided on the screen cylinder cover 5. The separation component is used to drive the separation retaining ring 53 to move.

[0032] Comparison Figure 2 , Figure 9 and Figure 10 As shown, the separation assembly includes two symmetrically distributed third push rods 54, which are existing electric push rods. Both symmetrically distributed third push rods 54 are fixed to the screen cylinder cover 5. The telescopic ends of the two symmetrically distributed third push rods 54 are jointly fixed to a support ring 55. The two symmetrically distributed third push rods 54 are used to balance the force on the support ring 55 during movement. The support ring 55 is slidably connected to the screen cylinder cover 5. The support ring 55 is fixedly connected to the separation retaining ring 53. The separation retaining ring 53 is rotatably connected to a rotating rod 60. The rotating rod 60 is provided with a protrusion. The screen cylinder cover 5 is fixedly connected to a fixed bracket 61. The fixed bracket 61 is fixedly connected to a sliding rod 62. The sliding rod 62 is provided with an inclined groove. The protrusion on the rotating rod 60 slides in the inclined groove of the sliding rod 62. The sliding rod 62 and the rotating rod 60 are slidably and rotatably connected. The outer side of the sliding rod 62 is in contact with the inner wall of the rotating rod 60. The rotating rod 60 is fixedly connected to symmetrically distributed scrapers 63. The scrapers 63 are slidably connected to the separation retaining ring 53.

[0033] Based on the above, before adding hot-drill particles into the sieve cylinder cover 5, firstly activate all the first push rods 21. The telescopic ends of the first push rods 21 drive the first support plate 22 to move upward. When the first support plate 22 contacts the upper side of the first sliding groove of the rotating cylinder 20, the first support plate 22 drives the rotating cylinder 20 to move upward synchronously. The upper side of the second sliding groove of the rotating cylinder 20 loses contact with the bottom baffle 10 until the centrifugal disc 201 on the rotating cylinder 20 enters the lower part of the separation retaining ring 53. Then, close all the first push rods 21 and activate all the fourth drive modules 52. The fourth drive modules 52 drive the third support plate 50 to move upward. The third support plate 50 drives the parts on it to move synchronously, causing the rotating cylinder 20 and the splined cylinder 40 to move upward. The rotating cylinder 20 and splined cylinder 40 drive the centrifugal disc 201 and sealing plate 401 to move upwards, respectively. The third support plate 50 moves upwards and presses against the second elastic element 51. Then, all the fourth drive modules 52 are controlled to rotate in the opposite direction. The fourth drive modules 52 release the limit on the third support plate 50. Under the action of the second elastic element 51 and gravity, the third support plate 50 moves downwards. The third support plate 50 drives the rotating cylinder 20 and splined cylinder 40 to move downwards. Then, all the fourth drive modules 52 are repeatedly controlled to realize the up and down vibration of the centrifugal disc 201 and sealing plate 401. Then, hot-drill particles are added into the separation retaining ring 53 through the feeding port of the screen cover 5. The hot-drill particles are collected by the collection groove formed by the separation retaining ring 53 and the centrifugal disc 201 and drive the hot-drill particles to move upwards. The drill particles vibrate up and down, causing the hot-drilled drill particles in the collection trough to stratify, meaning the particle size gradually decreases from top to bottom. After vibration, the dust in the hot-drilled drill particles in the collection trough mainly concentrates at the bottom of the collection trough and is discharged through the arc-shaped opening on the centrifugal disc 201. After the vibration stratification is completed, all fourth drive modules 52 are turned off, and then all third push rods 54 are activated. The telescopic end of the third push rod 54 drives the support ring 55 to move downward, and the support ring 55 drives the separation baffle ring 53 to move downward, causing the large-diameter hot-drilled drill particles in the collection trough to fall onto the first screen 6 first. As the separation baffle ring 53 descends, the hot-drilled drill particles in the collection trough fall onto the first screen 6 in stages from large to small, reducing the probability of the hot-drilled drill particles clogging the screen holes on the first screen 6. The separating ring 53 drives the rotating rod 60 and scraper 63 to descend synchronously. During the descent, the rotating rod 60 rotates under the guidance of the sliding rod 62, which in turn drives the scraper 63 to rotate. The scraper 63 disperses the large-diameter hot-dip drill particles in the upper part of the collection trough, making it easier for the hot-dip drill particles in the collection trough to fall onto the first screen 6. When the upper side of the separating ring 53 is aligned with the upper side of the first screen 6, the telescopic end of the third push rod 54 is controlled to drive the separating ring 53 to move upward through the support ring 55. After the separating ring 53 returns to its initial position, all third push rods 54 are closed, and all first push rods 21 are activated. The telescopic end of the first push rod 21 drives the first support plate 22 to move downward. The rotating cylinder 20 remains in contact with the first support plate 22 under the action of gravity.Until the upper side of the second sliding groove of the rotating cylinder 20 contacts the bottom baffle 10, the first support plate 22 continues to move downward until it returns to its initial position. Then, all first push rods 21 are closed, and the process in Embodiment 1 is repeated.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hot-drill vibrating screen with negative pressure dust collection, comprising a support frame (1), wherein the support frame (1) is fixedly connected to a first elastic element (2) distributed circumferentially, the first elastic element (2) distributed circumferentially is fixedly connected to a screening cylinder (3), and the support frame (1) is provided with a vibration module (4) for driving the screening cylinder (3) to vibrate up and down, characterized in that: The support frame (1) is fixedly connected to a screen cylinder cover (5) that is slidably connected to the screening cylinder (3). The screening cylinder (3) is fixedly connected to a first screen (6), a second screen (7), and a bottom baffle (10). The first screen (6) and the second screen (7) are both provided with arrayed and circumferentially distributed screen holes. The screening cylinder (3) is rotatably connected to a third screen (8) that is rotatably connected to the second screen (7). The screen cylinder cover (5) is provided with a first drive module (9) for driving the third screen (8) to rotate. The support frame (1) is equipped with a negative pressure component (13). An air supply module (11) is installed on the support frame (1). The air outlet of the air supply module (11) is connected to the screening cylinder (3) through a pipe. The connection port is located above the bottom baffle (10). The screening cylinder (3) is slidably connected to a sealing baffle (12) that fits against the bottom baffle (10) and is used to shield the screening cylinder (3). The second screen (7) is provided with a centrifugal component for centrifugally throwing hot diamonds onto the second screen (7).

2. The hot-drill vibrating screen with negative pressure dust collection according to claim 1, characterized in that: The centrifugal assembly includes a rotating cylinder (20), which is slidably and rotatably connected to the bottom baffle (10). A centrifugal disc (201) is fixedly connected to the rotating cylinder (20). The centrifugal disc (201) has circumferentially distributed arc-shaped openings. The rotating cylinder (20) is in contact with the second screen (7). A first push rod (21) is symmetrically distributed on the support frame (1). The telescopic ends of the symmetrically distributed first push rods (21) are jointly fixedly connected to a first support plate (22). 2) The first support plate (22) is slidably and rotatably connected to the rotating cylinder (20), and the first support plate (22) is slidably connected to the screening cylinder (3). The support frame (1) is provided with a second drive module (23), which is used to drive the rotating cylinder (20) to rotate. The second screen (7) is provided with a separating component, which is used to divide the second screen (7) into two parts. The rotating cylinder (20) is provided with a discharge component, which is used to discharge the material on the second screen (7).

3. The hot-drill vibrating screen with negative pressure dust collection according to claim 2, characterized in that: The separating component includes circumferentially distributed fixed baffles (30), all of which are fixedly connected to the second screen (7). The fixed baffles (30) are slidably connected to rotating baffles (31), which are slidably connected to the second screen (7). The circumferentially distributed rotating baffles (31) are all fixedly connected to a connecting bracket (32), which is slidably connected to the screening cylinder (3). A third driving module (33) is provided on the screen cylinder cover (5), which is used to drive the connecting bracket (32) to rotate.

4. A hot-drill vibrating screen with negative pressure dust collection according to claim 3, characterized in that: The third screen (8) is provided with a first group of holes (80) and a second group of holes (81) distributed circumferentially. The first group of holes (80) is located on the outside of all the fixed baffles (30), and the second group of holes (81) is located on the inside of all the fixed baffles (30). The first group of holes (80) has a first arc-shaped hole (801) evenly distributed, and the second group of holes (81) has a second arc-shaped hole (811) evenly distributed. The first arc-shaped hole (801) on the first group of holes (80) and the corresponding second arc-shaped hole (811) on the second group of holes (81) correspond one-to-one with the same column of screen holes on the second screen (7).

5. A hot-drill vibrating screen with negative pressure dust collection according to claim 4, characterized in that: The flow area of ​​all the first arc-shaped holes (801) in the same first hole group (80) gradually decreases from the side closer to the axis of the third screen (8) to the side farther away. The flow area of ​​all the second arc-shaped holes (811) in the same second hole group (81) gradually increases from the side closer to the axis of the third screen (8) to the side farther away. The flow area of ​​the first arc-shaped holes (801) in the first hole group (80) is greater than the flow area of ​​the second arc-shaped holes (811) in the second hole group (81). One side edge of all the first arc-shaped holes (801) in the first hole group (80) is collinear with the same side edge of all the second arc-shaped holes (811) in the corresponding second hole group (81).

6. A hot-drill vibrating screen with negative pressure dust collection according to claim 2, characterized in that: The centrifugal disc (201) is configured as an inwardly concave arc surface and its surface is provided with strip-shaped protrusions.

7. A hot-drill vibrating screen with negative pressure dust collection according to claim 6, characterized in that: The unloading assembly includes a splined cylinder (40), which is slidably connected to the rotating cylinder (20). The splined cylinder (40) passes through the support frame (1). A sealing plate (401) is fixedly connected to the splined cylinder (40), which is used to seal the centrifugal disc (201). A second support plate (41) is rotatably connected to the splined cylinder (40). The rotating cylinder (20) is provided with symmetrically distributed second push rods (42). The telescopic ends of the symmetrically distributed second push rods (42) are all fixedly connected to the second support plate (41).

8. A hot-drill vibrating screen with negative pressure dust collection according to claim 7, characterized in that: It also includes a layering component, which is used to drive the centrifugal disc (201) to vibrate up and down. The layering component includes a third support plate (50), which is rotatably connected to the rotating cylinder (20). The symmetrically distributed second push rods (42) are all fixed to the third support plate (50). A second elastic element (51) is provided between the first support plate (22) and the third support plate (50). A symmetrically distributed fourth drive module (52) is fixed on the first support plate (22). The fourth drive module (52) is used to drive the third support plate (50) to vibrate up and down. A separation retaining ring (53) is provided on the screen cylinder cover (5). The separation retaining ring (53) is slidably connected to the first screen (6). The separation retaining ring (53) is used to block the upper side of the centrifugal disc (201). A separation component is provided on the screen cylinder cover (5). The separation component is used to drive the separation retaining ring (53) to move.

9. A hot-drill vibrating screen with negative pressure dust collection according to claim 8, characterized in that: The separation assembly includes symmetrically distributed third push rods (54), all of which are fixed to the screen cylinder cover (5). The telescopic ends of the symmetrically distributed third push rods (54) are all fixed to a support ring (55). The support ring (55) is slidably connected to the screen cylinder cover (5) and is fixed to the separation retaining ring (53).

10. A hot-drill vibrating screen with negative pressure dust collection according to claim 9, characterized in that: The separating retaining ring (53) is rotatably connected to a rotating rod (60), the screen cylinder cover (5) is fixedly connected to a fixed bracket (61), the fixed bracket (61) is fixedly connected to a sliding rod (62), the sliding rod (62) is slidably and rotatably connected to the rotating rod (60), the rotating rod (60) is fixedly connected to symmetrically distributed scrapers (63), and the scrapers (63) are slidably connected to the separating retaining ring (55).

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