Artificial diamond screening machine

Abstract

The invention relates to the technical field of screening machines, in particular to an artificial diamond screening machine which comprises a shell and a first screening plate, a feeding port is formed in the top end of the shell, and the first screening plate is obliquely arranged in the shell; the right portion of the first screening plate inclines upwards, an opening is formed in the right portion of the first screening plate, the upper portion of the first screening plate is covered with the cover body, an opening is formed in the left portion of the cover body, the limiting protrusion is arranged at the top end of the first screening plate, and the hose is arranged at the right end of the cover body in a communicating mode. The output end of the hose communicates with the air suction device, the air suction device is used for sucking air into the cover body, and the feeding device is arranged at the top end of the shell; the screening and removing effect on materials left on the surfaces of the artificial diamonds is improved, the convenience of screening and separating the artificial diamonds with different granularities is improved, the screening quality of the artificial diamonds is improved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of screening machines, and in particular to a synthetic diamond screening machine. Background Technology

[0002] Synthetic diamond, as a superhard material with outstanding physical and chemical properties, occupies an extremely important position in the industrial field. With its high hardness, high wear resistance, high thermal conductivity, and good chemical stability, it is widely used in many industries such as machining, geological drilling, gem processing, and electronic device manufacturing.

[0003] Due to the complexity of reaction conditions and the diversity of raw materials during the synthesis of synthetic diamonds, the resulting products often exhibit significant differences in particle size. These differences directly affect the performance and effectiveness of synthetic diamonds in various application fields, thus necessitating the screening of synthetic diamonds.

[0004] Currently, among existing screening equipment, such as the patent with announcement number CN219442406U, this utility model relates to the field of screening device technology and discloses a screening device for diamond wafer processing, including a screening machine. The inner wall of the screening machine is movably connected to a collection mechanism, and the outer wall of the screening machine is fixedly connected to a transmission mechanism. One end of the transmission mechanism is fixedly connected to a screening plate. The transmission mechanism enables better screening.

[0005] During use, it was found that existing devices are not convenient for cleaning, screening and removing the materials adhering to the surface of synthetic diamonds because graphite skin and other materials are easily left on the surface after processing and separation. This reduces the screening effect of synthetic diamonds. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a synthetic diamond screening machine that improves the screening and removal effect of residual materials on the surface of synthetic diamonds, improves the convenience of screening and separating synthetic diamonds of different particle sizes, improves the screening quality of synthetic diamonds, and improves work efficiency.

[0007] This invention discloses a synthetic diamond screening machine, comprising a housing and a first screening plate. A feed inlet is provided at the top of the housing, and the first screening plate is angled and disposed inside the housing. It also includes an air suction device, a feeding device, a sorting mechanism, a cover, a limiting protrusion, and a flexible hose. The right side of the first screening plate is angled upwards and has an opening. The cover is fitted over the upper part of the first screening plate and has an opening on its left side. The limiting protrusion is located at the top of the first screening plate. The flexible hose is connected to the right end of the cover, and its output end is connected to the air suction device for suctioning air from the cover. The feeding device is located at the top of the housing and is used to separate materials from the surface of the synthetic diamonds. The sorting mechanism is located inside the housing and is used to screen and separate synthetic diamonds of different particle sizes. The sorting mechanism also drives the first screening plate to reciprocate. Synthetic diamonds to be screened are placed into the feeding device, which agitates the diamonds. During the process, the materials collide with each other, causing residual material adhering to their surfaces to detach. The feeding device then pours the synthetic diamonds and the detached material together onto the top left of the first screening plate. The sorting mechanism drives the first screening plate to sway left and right while simultaneously floating up and down, causing the synthetic diamonds and material to be thrown upwards and to the right. Limiting protrusions restrict the movement of the synthetic diamonds and material, allowing them to gradually move to the right from the top of the first screening plate. An air suction device continuously draws air into the enclosure. When the material is thrown up, the airflow transports it into the suction device, achieving separation of the synthetic diamonds and material. The synthetic diamonds then fall through the opening on the right side of the first screening plate to the sorting mechanism. The sorting mechanism separates the synthetic diamonds into different particle sizes, improving the removal of residual material from the surface of the synthetic diamonds, enhancing the convenience of separating synthetic diamonds into different particle sizes, improving the screening quality of synthetic diamonds, and increasing work efficiency.

[0008] Preferably, the feeding device includes a drive device, a tank, a hopper, a base, a guide, a spline sleeve, and a first motor. The hopper is connected to the top of the tank. The left and right ends of the tank are rotatably mounted on the base. The guide is mounted on the top of the shell. The base is slidably mounted on the guide via the drive device. A spline is provided on the rotating end of the tank. The spline sleeve is fitted onto the spline and rotatably mounted on the outer wall of the shell. The first motor is mounted on the outer wall of the shell, and the output end of the first motor is connected to the spline sleeve. The synthetic diamonds to be screened are placed into the tank through the hopper. Then, the drive device drives the base to swing horizontally back and forth, causing the base to swing the tank. During the swinging of the tank, the synthetic diamonds rub and collide with each other, thereby removing the material remaining on the surface of the synthetic diamonds. After the material is removed, the first motor drives the spline sleeve to rotate. The spline sleeve drives the tank to rotate via the spline, causing the hopper to face downwards and pour the synthetic diamonds and material in the tank into the shell.

[0009] Preferably, the sorting mechanism includes a power unit, a transmission unit, a second screening plate, screens, a crankshaft, a first connecting arm, rollers, and conveyor belts. The second screening plate is inclined downwards at its left side inside the housing and is positioned below the first screening plate. Multiple sets of screens are arranged on the second screening plate, with the mesh size of the screens increasing sequentially from left to right. Two crankshafts are rotatably mounted on the housing via the power unit. The lower part of the first screening plate is fitted onto the two crankshafts. The upper part of the first connecting arm is rotatably fitted onto the outer wall of the crankshaft, and the lower part of the first connecting arm is rotatably connected to the right side of the second screening plate. The left side of the second screening plate is rotatably mounted on the inner wall of the housing. Rollers are rotatably mounted on the inner wall of the housing. Multiple sets of conveyor belts are fitted onto the rollers, and the multiple sets of conveyor belts are respectively positioned below the multiple sets of screens. The rotating end of the left side of the second screening plate is provided with a transmission device. The drive mechanism and transmission device utilize the oscillating rotation of the second screening plate to power the rotation of the roller shaft. Synthetic diamonds discharged from the opening of the first screening plate fall onto the top right side of the second screening plate. As the crankshaft rotates, it drives the right side of the second screening plate to oscillate up and down repeatedly via the first connecting arm. This oscillation causes the synthetic diamonds to be gradually conveyed to the left through an inclined angle. During this leftward conveying process, the synthetic diamonds pass through multiple sets of screens with different mesh sizes, allowing synthetic diamonds of different particle sizes to be screened and fall onto multiple conveyor belts. Simultaneously, the oscillation of the second screening plate drives the roller shaft to rotate via the transmission device. The rotation of the roller shaft then drives the multiple conveyor belts to rotate, thus transporting and discharging the screened synthetic diamonds. This improves the convenience of screening and separating synthetic diamonds of different particle sizes and enhances the convenience of automatic discharge of synthetic diamonds.

[0010] Preferably, the transmission device includes a first bevel gear, a one-way bearing, a second bevel gear, a crown gear, and a spur gear. The first bevel gear is mounted on the rotating end of the second screening plate. The one-way bearing is rotatably mounted on the inner wall of the housing. The second bevel gear is connected to the inner ring of the one-way bearing, and the crown gear is connected to the outer ring of the one-way bearing. The spur gear is mounted on the end of the roller shaft. The crown gear meshes with the spur gear, and the first bevel gear meshes with the second bevel gear. When the second screening plate swings up and down, it drives the first bevel gear to rotate reciprocally. After the first bevel gear rotates reciprocally, it drives the second bevel gear to rotate reciprocally. When the second screening plate swings down, the inner and outer rings of the one-way bearing lock together, so that the first bevel gear drives the crown gear to rotate through the one-way bearing. After the crown gear rotates, it drives the roller shaft to rotate through the spur gear, thereby enabling multiple conveyor belts to transport and discharge synthetic diamonds, achieving the convenience of simultaneous transport and discharge during the screening process of synthetic diamonds.

[0011] Preferably, the suction device includes a collection box, a blower, a conveying pipe, a valve, and a filter screen. The blower is connected to the top of the collection box, the filter screen is installed inside the collection box, the top of the conveying pipe is connected to a flexible hose, the bottom of the conveying pipe is connected to the inside of the collection box, and the valve is connected to the conveying pipe. The blower draws air into the collection box, which then draws air into the hood through the conveying pipe and flexible hose. This allows the material thrown up inside the hood to be transported to the collection box by the airflow. The filter screen intercepts the material, storing it inside the collection box. When it is necessary to discharge the material collected in the collection box, the valve is closed and the blower blows air into the collection box. By opening the discharge port of the collection box, the material inside the collection box is discharged and cleaned, while also facilitating backflushing and cleaning of the filter screen.

[0012] Preferably, the driving device includes a second motor, a turntable, and a second connecting arm. The second motor is mounted on the outer wall of the housing, the turntable is rotatably mounted on the housing, the output end of the second motor is connected to the turntable, the bottom end of the second connecting arm is rotatably mounted on the outer wall of the turntable at an eccentric position, and the top end of the second connecting arm is rotatably connected to the base. The second motor drives the turntable to rotate, causing the turntable to drive the base to reciprocate horizontally via the second connecting arm.

[0013] Preferably, the power unit includes sprockets, chains, and a third motor. Two sets of sprockets are respectively installed on the rotating ends of two sets of crankshafts, and the chains are fitted around the outside of the two sets of sprockets. The third motor is installed on the outer wall of the housing, and the output end of the third motor is connected to one of the crankshafts. The crankshafts are rotated by the third motor, so that the two sets of crankshafts rotate synchronously through the transmission of sprockets and chains.

[0014] Preferably, it also includes a flow guide and a collection cover. Multiple flow guides are installed at the bottom of the second screening plate below multiple sets of screens, and multiple collection covers are set on the sides of multiple sets of conveyor belts. The multiple sets of screens guide the screening of synthetic diamonds of different particle sizes to the multiple sets of conveyor belts through the flow guides, and the collection covers block the synthetic diamonds on the conveyor belts, thereby improving the convenience of separating synthetic diamonds of different particle sizes.

[0015] Preferably, it also includes multiple sets of collection tanks, which are respectively set at the corresponding positions of multiple sets of conveyor belts; the multiple sets of conveyor belts transport the discharged synthetic diamonds to the collection tanks, and the synthetic diamonds of different particle sizes are collected through the multiple sets of collection tanks.

[0016] Preferably, the tank body is provided with multiple sets of protrusions; this improves the friction and collision effect of the synthetic diamond within the tank body and increases the efficiency of removing residual materials from the surface of the synthetic diamond.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The synthetic diamonds to be screened are placed into the feeding device, which shakes the diamonds, causing them to collide with each other and detach any residual material adhering to their surfaces. The feeding device then pours the synthetic diamonds and the detached material together onto the top left of the first screening plate. The sorting mechanism drives the first screening plate to sway left and right while simultaneously floating up and down, causing the movement of the first screening plate to throw the synthetic diamonds and material upwards and to the right. The limiting protrusions limit the movement of the synthetic diamonds and material, ensuring that the synthetic diamonds... The material is gradually conveyed to the right from the top of the first screening plate. The suction device continuously draws air into the enclosure. When the material is thrown up, the airflow carries the thrown material into the suction device, achieving separation of the synthetic diamond from the material. Subsequently, the synthetic diamond falls through the opening on the right side of the first screening plate to the sorting mechanism. The sorting mechanism separates the synthetic diamond into different particle sizes, improving the removal of residual material on the surface of the synthetic diamond, increasing the convenience of separating synthetic diamonds into different particle sizes, improving the screening quality of synthetic diamonds, and increasing work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isometric structure of the present invention; Figure 2 This is an isometric structural diagram of the connection between the first screening plate and the cover, etc. Figure 3 This is a partial isometric structural diagram of the connection between the first screening plate and the limiting protrusion, etc. Figure 4 This is a partial isometric structural diagram of the connection between the hose and the delivery pipe, etc. Figure 5 This is a partial isometric structural diagram of the connection between the tank body and the hopper, etc. Figure 6 This is a partial isometric structural diagram of the connection between the roller and the conveyor belt, etc. Figure 7 This is a partial isometric structural diagram of the connection between the one-way bearing and the second bevel gear, etc. Figure 8 This is a partial isometric structural diagram of the connection between the sprocket and the chain, etc. Figure 9 This is a partial isometric structural diagram of the connection between the crankshaft and the first connecting arm, etc. Figure 10 This is an isometric structural diagram of the connection between the collection box and the fan, etc.

[0019] In the attached diagram, the following are labeled: 101, shell; 102, first screening plate; 103, cover; 104, limiting protrusion; 105, hose; 201, tank; 202, hopper; 203, base; 204, guide; 205, spline sleeve; 206, first motor; 301, second screening plate; 302, screen; 303, crankshaft; 304, first connecting arm; 305, roller; 306, conveyor belt; 401, first cone. Gear; 402, One-way bearing; 403, Second bevel gear; 404, Crown gear; 405, Spur gear; 501, Collection box; 502, Fan; 503, Conveying pipe; 504, Valve; 505, Filter screen; 601, Second motor; 602, Turntable; 603, Second connecting arm; 701, Sprocket; 702, Chain; 703, Third motor; 801, Flow guide; 802, Collection cover; 901, Collection trough. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Example 1

[0021] A synthetic diamond screening machine of the present invention includes a housing 101 and a first screening plate 102. The housing 101 has a feed inlet at its top, and the first screening plate 102 is angled and disposed inside the housing 101. It also includes an air suction device, a feeding device, a sorting mechanism, a cover 103, a limiting protrusion 104, and a flexible hose 105. The right side of the first screening plate 102 is angled upwards and has an opening. The cover 103 is fitted over the upper part of the first screening plate 102, and the left side of the cover 103 has a... An opening is provided, a limiting protrusion 104 is provided at the top of the first screening plate 102, a hose 105 is provided at the right end of the cover 103, the output end of the hose 105 is connected to the air suction device, the air suction device is used to suck air into the cover 103, a feeding device is provided at the top of the shell 101, the feeding device is used to separate the material on the surface of the artificial diamond, a sorting mechanism is provided inside the shell 101, the sorting mechanism is used to screen and separate artificial diamonds of different particle sizes, and the sorting mechanism is used to drive the first screening plate 102 to reciprocate. The feeding device includes a drive device, a tank 201, a hopper 202, a base 203, a guide 204, a spline sleeve 205, and a first motor 206. The hopper 202 is connected to the top of the tank 201. The left and right ends of the tank 201 are rotatably mounted on the base 203. The guide 204 is mounted on the top of the housing 101. The base 203 is slidably mounted on the guide 204 through the drive device. A spline is provided on the rotating end of the tank 201. The spline sleeve 205 is fitted onto the spline and is rotatably mounted on the outer wall of the housing 101. The first motor 206 is mounted on the outer wall of the housing 101, and the output end of the first motor 206 is connected to the spline sleeve 205. In this embodiment, the synthetic diamonds to be screened are placed into the feeding device. The feeding device shakes the synthetic diamonds, causing them to collide with each other and detach any residual material adhering to their surfaces. The feeding device then pours the synthetic diamonds and the detached material together onto the top left of the first screening plate 102. The sorting mechanism drives the first screening plate 102 to shake left and right while simultaneously floating up and down, causing the movement of the first screening plate 102 to throw the synthetic diamonds and material upwards and to the right. The limiting protrusion 104 limits the movement of the synthetic diamonds and material, preventing them from being separated. The material is gradually conveyed to the right from the top of the first screening plate 102. The suction device continuously draws air into the hood 103. When the material is thrown up, the airflow carries the thrown material into the suction device, achieving the separation of the synthetic diamond from the material. Subsequently, the synthetic diamond falls through the opening on the right side of the first screening plate 102 to the sorting mechanism. The sorting mechanism separates the synthetic diamond into different particle sizes, improving the screening and removal effect of residual material on the surface of the synthetic diamond, improving the convenience of screening and separating synthetic diamonds into different particle sizes, improving the screening quality of synthetic diamonds, and improving work efficiency. Example 2

[0022] Based on Embodiment 1, the present invention provides a synthetic diamond screening machine. The sorting mechanism includes a power unit, a transmission unit, a second screening plate 301, a screen 302, a crankshaft 303, a first connecting arm 304, a roller 305, and a conveyor belt 306. The second screening plate 301 is inclined downwards on its left side inside the housing 101 and is located below the first screening plate 102. Multiple sets of screens 302 are arranged on the second screening plate 301, with the mesh size of the multiple sets of screens 302 increasing sequentially from left to right. Two sets of crankshafts 303 are rotatably mounted on the housing 101 via the power unit. The first screening plate 102 is located below... The components are fitted onto two sets of crankshafts 303. The upper part of the first connecting arm 304 is rotatably fitted onto the outer wall of the crankshaft 303. The lower part of the first connecting arm 304 is rotatably connected to the right part of the second screening plate 301. The left part of the second screening plate 301 is rotatably mounted on the inner wall of the housing 101. The roller shaft 305 is rotatably mounted on the inner wall of the housing 101. Multiple sets of conveyor belts 306 are fitted onto the roller shaft 305. The multiple sets of conveyor belts 306 are respectively positioned below the multiple sets of screens 302. The rotating end of the left part of the second screening plate 301 is provided with a transmission device. The transmission device uses the swinging rotation of the second screening plate 301 to provide power for the rotation of the roller shaft 305. The air intake device includes a collection box 501, a fan 502, a delivery pipe 503, a valve 504, and a filter screen 505. The fan 502 is connected to the top of the collection box 501, the filter screen 505 is installed inside the collection box 501, the top of the delivery pipe 503 is connected to the hose 105, the bottom of the delivery pipe 503 is connected to the inside of the collection box 501, and the valve 504 is connected to the delivery pipe 503. The driving device includes a second motor 601, a turntable 602, and a second connecting arm 603. The second motor 601 is mounted on the outer wall of the housing 101, the turntable 602 is rotatably mounted on the housing 101, the output end of the second motor 601 is connected to the turntable 602, the bottom end of the second connecting arm 603 is rotatably mounted on the outer wall of the turntable 602 at an eccentric position, and the top end of the second connecting arm 603 is rotatably connected to the base 203. The power unit includes a sprocket 701, a chain 702 and a third motor 703. The two sets of sprockets 701 are respectively installed on the rotating ends of the two sets of crankshafts 303. The chain 702 is fitted on the outside of the two sets of sprockets 701. The third motor 703 is installed on the outer wall of the housing 101. The output end of the third motor 703 is connected to one of the sets of crankshafts 303. It also includes a flow guide hood 801 and a collection hood 802. Multiple flow guide hoods 801 are respectively installed at the bottom of the second screening plate 301 below multiple sets of screens 302, and multiple collection hoods 802 are respectively set on the sides of multiple sets of conveyor belts 306. It also includes multiple sets of collection troughs 901, which are respectively set at corresponding positions of multiple sets of conveyor belts 306; Multiple sets of protrusions are provided inside the tank body 201; In this embodiment, the synthetic diamonds to be screened are placed into the tank 201 through the hopper 202. Then, a drive device drives the base 203 to reciprocate horizontally, causing the tank 201 to shake. During this shaking, the synthetic diamonds rub and collide with each other, causing residual material on the surface of the diamonds to detach. After the material has detached, the first motor 206 drives the spline sleeve 205 to rotate. The spline sleeve 205, through its splines, drives the tank 201 to rotate, causing the hopper 202 to tilt downwards and pour the synthetic diamonds and material from the tank 201 into the shell 101. The synthetic diamonds discharged from the opening of the first screening plate 102 fall onto the top right side of the second screening plate 301. As the crankshaft 303 rotates, the diamonds are discharged through the first screening plate 102. The first connecting arm 304 drives the right side of the second screening plate 301 to swing back and forth, thereby gradually conveying the synthetic diamonds to the left through the tilt angle during the swing of the second screening plate 301. During the leftward conveying process on the second screening plate 301, the synthetic diamonds pass through multiple sets of screens 302 with different mesh sizes in sequence, so that synthetic diamonds of different particle sizes are screened and fall onto multiple sets of conveyor belts 306. While the second screening plate 301 swings, it drives the roller shaft 305 to rotate through the transmission device. After the roller shaft 305 rotates, it drives the multiple sets of conveyor belts 306 to rotate, so that the multiple sets of conveyor belts 306 transport and discharge the screened synthetic diamonds, thereby improving the convenience of screening and separating synthetic diamonds of different particle sizes and improving the convenience of automatic discharge of synthetic diamonds. Example 3

[0023] Based on Embodiment 2, the present invention provides a synthetic diamond screening machine, wherein the transmission device includes a first bevel gear 401, a one-way bearing 402, a second bevel gear 403, a crown gear 404, and a spur gear 405. The first bevel gear 401 is mounted on the rotating end of the second screening plate 301, the one-way bearing 402 is rotatably mounted on the inner side wall of the housing 101, the second bevel gear 403 is connected to the inner ring of the one-way bearing 402, the crown gear 404 is connected to the outer ring of the one-way bearing 402, and the spur gear 405 is mounted on the end of the roller shaft 305. The crown gear 404 meshes with the spur gear 405. 1. Engages with the second bevel gear 403; when the second screening plate 301 swings up and down, it drives the first bevel gear 401 to rotate back and forth. After the first bevel gear 401 rotates back and forth, it drives the second bevel gear 403 to rotate back and forth. When the second screening plate 301 swings down, the inner and outer rings of the one-way bearing 402 are locked together, so that the first bevel gear 401 drives the crown gear 404 to rotate through the one-way bearing 402. After the crown gear 404 rotates, it drives the roller shaft 305 to rotate through the spur gear 405, so that multiple sets of conveyor belts 306 convey and discharge the artificial diamonds, realizing the convenience of simultaneous conveying and discharge during the screening process of artificial diamonds.

[0024] like Figures 1 to 10 As shown, the present invention discloses a synthetic diamond screening machine. During operation, the synthetic diamonds to be screened are placed into a feeding device. The feeding device shakes the synthetic diamonds, causing them to collide with each other and detach any residual material adhering to their surfaces. The feeding device then pours the synthetic diamonds and the detached material together onto the top left of the first screening plate 102. A sorting mechanism drives the first screening plate 102 to shake left and right while simultaneously floating up and down, causing the synthetic diamonds and material to be thrown upwards and to the right. A limiting protrusion 104 limits the movement of the synthetic diamonds and material, allowing them to gradually move to the right from the top of the first screening plate 102. An air suction device continuously draws air into the enclosure 103. When the material is thrown up, the airflow transports the thrown material into the suction device, achieving separation of the synthetic diamonds and the material. The synthetic diamonds then fall through the opening on the right side of the first screening plate 102 to the sorting mechanism, where they are screened and separated into different particle sizes.

[0025] The main functions achieved by this invention are: 1. The feeding device shakes the synthetic diamonds, causing them to collide with each other and detach the residual material adhering to their surfaces. This improves the screening and removal effect of residual material on the surface of synthetic diamonds, enhances the convenience of screening and separating synthetic diamonds of different particle sizes, improves the screening quality of synthetic diamonds, and increases work efficiency. 2. Improve the ease of screening and separating synthetic diamonds of different particle sizes, and facilitate the simultaneous conveying and discharge of synthetic diamonds during the screening process.

[0026] The first motor 206, fan 502, second motor 601, and third motor 703 of the synthetic diamond screening machine of the present invention are commercially available. Technical personnel in the industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A synthetic diamond screening machine, comprising a housing (101) and a first screening plate (102), wherein a feed inlet is provided at the top of the housing (101), and the first screening plate (102) is inclinedly disposed inside the housing (101); characterized in that, It also includes an air suction device, a feeding device, a sorting mechanism, a cover (103), a limiting protrusion (104), and a hose (105). The right side of the first screening plate (102) is tilted upward at an upward angle, and an opening is provided on the right side of the first screening plate (102). The cover (103) is installed on the upper part of the first screening plate (102), and an opening is provided on the left side of the cover (103). The limiting protrusion (104) is located at the top of the first screening plate (102). The hose (105) is connected to the right end of the cover (103). The output end of the hose (105) is connected to the air suction device. The air suction device is used to suction air into the cover (103). The feeding device is located at the top of the shell (101). The feeding device is used to separate the material on the surface of the artificial diamond. The sorting mechanism is located inside the shell (101). The sorting mechanism is used to screen and separate artificial diamonds of different particle sizes. The sorting mechanism is used to drive the first screening plate (102) to reciprocate.

2. The synthetic diamond screening machine as described in claim 1, characterized in that, The feeding device includes a drive device, a tank (201), a hopper (202), a base (203), a guide (204), a spline sleeve (205), and a first motor (206). The hopper (202) is connected to the top of the tank (201). The left and right ends of the tank (201) are rotatably mounted on the base (203). The guide (204) is mounted on the top of the shell (101). The base (203) is slidably mounted on the guide (204) through the drive device. A spline is provided on the rotating end of the tank (201). The spline sleeve (205) is fitted onto the spline and rotatably mounted on the outer wall of the shell (101). The first motor (206) is mounted on the outer wall of the shell (101). The output end of the first motor (206) is connected to the spline sleeve (205).

3. The synthetic diamond screening machine as described in claim 1, characterized in that, The sorting mechanism includes a power unit, a transmission unit, a second screening plate (301), screens (302), a crankshaft (303), a first connecting arm (304), a roller (305), and a conveyor belt (306). The second screening plate (301) is inclined downwards on its left side inside the housing (101) and is located below the first screening plate (102). Multiple sets of screens (302) are arranged on the second screening plate (301), and the mesh size of the multiple sets of screens (302) increases sequentially from left to right. Two sets of crankshafts (303) are rotated and mounted on the housing (101) via the power unit. The lower part of the first screening plate (102) is fitted onto the two sets of crankshafts (302). 3) The upper part of the first connecting arm (304) is rotatably mounted on the outer wall of the crankshaft (303). The lower part of the first connecting arm (304) is rotatably connected to the right side of the second screening plate (301). The left side of the second screening plate (301) is rotatably mounted on the inner wall of the housing (101). The roller shaft (305) is rotatably mounted on the inner wall of the housing (101). Multiple sets of conveyor belts (306) are mounted on the roller shaft (305). The multiple sets of conveyor belts (306) are respectively positioned below the multiple sets of screens (302). The rotating end of the left side of the second screening plate (301) is provided with a transmission device. The transmission device provides power to the rotation of the roller shaft (305) by the swing rotation of the second screening plate (301).

4. The synthetic diamond screening machine as described in claim 3, characterized in that, The transmission device includes a first bevel gear (401), a one-way bearing (402), a second bevel gear (403), a crown gear (404), and a spur gear (405). The first bevel gear (401) is mounted on the rotating end of the second screening plate (301). The one-way bearing (402) is rotatably mounted on the inner wall of the housing (101). The second bevel gear (403) is connected to the inner ring of the one-way bearing (402). The crown gear (404) is connected to the outer ring of the one-way bearing (402). The spur gear (405) is mounted on the end of the roller (305). The crown gear (404) meshes with the spur gear (405). The first bevel gear (401) meshes with the second bevel gear (403).

5. A synthetic diamond screening machine as described in claim 1, characterized in that, The air intake device includes a collection box (501), a fan (502), a delivery pipe (503), a valve (504), and a filter screen (505). The fan (502) is connected to the top of the collection box (501), the filter screen (505) is installed inside the collection box (501), the top of the delivery pipe (503) is connected to the hose (105), the bottom of the delivery pipe (503) is connected to the inside of the collection box (501), and the valve (504) is connected to the delivery pipe (503).

6. A synthetic diamond screening machine as described in claim 2, characterized in that, The driving device includes a second motor (601), a turntable (602), and a second connecting arm (603). The second motor (601) is mounted on the outer wall of the housing (101), the turntable (602) is rotatably mounted on the housing (101), the output end of the second motor (601) is connected to the turntable (602), the bottom end of the second connecting arm (603) is rotatably mounted on the eccentric position of the outer wall of the turntable (602), and the top end of the second connecting arm (603) is rotatably connected to the base (203).

7. A synthetic diamond screening machine as described in claim 3, characterized in that, The power unit includes sprockets (701), chains (702) and a third motor (703). Two sets of sprockets (701) are respectively installed on the rotating ends of two sets of crankshafts (303). The chains (702) are fitted on the outside of the two sets of sprockets (701). The third motor (703) is installed on the outer wall of the housing (101). The output end of the third motor (703) is connected to one of the crankshafts (303).

8. A synthetic diamond screening machine as described in claim 3, characterized in that, It also includes a flow guide (801) and a collection cover (802). Multiple flow guides (801) are installed at the bottom of the second screening plate (301) below multiple screens (302), and multiple collection covers (802) are set on the side of multiple conveyor belts (306).

9. A synthetic diamond screening machine as described in claim 3, characterized in that, It also includes multiple sets of collection troughs (901), which are respectively set at corresponding positions on multiple sets of conveyor belts (306).

10. A synthetic diamond screening machine as described in claim 2, characterized in that, The tank (201) is provided with multiple sets of protrusions.

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