An automated diamond sorting apparatus

Abstract

The application discloses a kind of automatic sorting equipment of cultivating diamond, it is related to cultivating diamond processing technical field, including sorting machine body, the sorting machine body outside fixed mounting has PLC control electric box and external power supply electric connection, the circulating water supply structure is fixedly installed in the bottom of sorting machine body, vibration plate and guide plate are arranged inside sorting machine body upper and lower, auxiliary conveying cleaning device is arranged between vibration plate and guide plate and circulating water supply structure water pipe connection;Through PLC control electric box control overall device work, realizes the organic combination of vibration sorting, circulating water flushing and the functions of auxiliary conveying cleaning such as multiple functions.It not only can effectively solve the problem of screen clogging and diamond displacement difficulty, but also can clean the screen and chute, keep it clean and tidy, so as to improve the sorting efficiency and accuracy, at the same time, the equipment also realizes the recycling of water resources, reduces waste and environmental pollution.

Description

Technical Field

[0001] This invention relates to the field of lab-grown diamond processing technology, and more particularly to an automatic sorting device for lab-grown diamonds. Background Technology

[0002] Lab-grown diamonds, also known as laboratory-grown diamonds or artificial diamonds, are cultivated in a laboratory environment using advanced technology. Their main component is carbon (C), identical to that of natural diamonds. The growth environment of lab-grown diamonds completely replicates the growth conditions of natural diamonds. Through techniques such as high-temperature, high-pressure (HPHT) and chemical vapor deposition (CVD), carbon is crystallized into diamonds under specific conditions. In the production and processing of lab-grown diamonds, sorting is a crucial step to ensure product quality and subsequent processing efficiency. Traditional manual sorting methods are not only time-consuming and labor-intensive but also easily affected by human factors, making it difficult to improve sorting accuracy and efficiency. With the continuous advancement of automation technology, automated sorting equipment is gradually being applied to the sorting process of lab-grown diamonds, aiming to achieve efficient and accurate sorting operations.

[0003] Some existing automated sorting equipment for lab-grown diamonds uses vibrating screens to separate lab-grown diamonds of different sizes. For example, according to the "Automatic Sorting Equipment for Lab-grown Diamonds" provided by Chinese Patent Publication No. CN221335281U, through the cooperation of a motor, cam, roller, wheel seat, spring, screen plate and screen, the screen plate can be driven to continuously rotate and reset upwards, and the screen can be driven to vibrate, so as to sort the diamond raw materials falling onto the screen. Larger diamond particles can be collected through the first discharge port, and smaller diamond particles can be collected through the second discharge port.

[0004] However, sorting lab-grown diamonds using sieves still faces several challenges. First, due to the varying sizes and shapes of lab-grown diamonds, some can easily become stuck in the sieve mesh during sorting, causing blockages and affecting sorting efficiency. Second, irregularly shaped diamonds, due to high friction, struggle to slide smoothly through the sieve and guide plate grooves, further reducing sorting efficiency. Furthermore, prolonged operation can cause dirt to accumulate on the sieve and grooving surfaces, not only hindering the smooth sliding of diamonds but also potentially leading to equipment malfunctions.

[0005] Therefore, the market urgently needs an automated sorting device that can efficiently and accurately sort lab-grown diamonds while effectively solving problems such as clogging, uneven rinsing, and stain removal. Summary of the Invention

[0006] This invention provides an automated sorting device for lab-grown diamonds, which solves the aforementioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention provides an automatic sorting device for lab-grown diamonds, comprising a sorting body, a PLC control box fixedly installed on the outside of the sorting body and electrically connected to an external power supply, a circulating water supply structure fixedly installed at the bottom of the sorting body, a vibrating plate and a guide plate arranged at the top and bottom inside the sorting body, an auxiliary conveying and cleaning device arranged between the vibrating plate and the guide plate, the auxiliary conveying and cleaning device being connected to the water pipe of the circulating water supply structure, and two sets of vibrating springs fixed on both sides of the bottom of the screen, with two support plates fixed at the bottom of the two sets of vibrating springs, the two support plates being fixed to the sides of the inside of the sorting body. The sorting machine body has openings at the top and bottom, with an upper discharge plate and a lower discharge plate fixedly installed at each opening. The upper and lower discharge plates are partially inserted into the sorting machine body and are located below the lowest points of the vibrating plate and guide plate, respectively. The guide plate is fixedly connected to the vibrating plate via a bracket. The top of the guide plate has a sliding groove, and a mounting groove is provided near the lowest point of the sliding groove. A water-permeable mesh is fixed in the mounting groove. The top of the sorting machine body has an inlet, and a feeding funnel is fixedly installed at the inlet.

[0008] The auxiliary conveying and cleaning device includes two bearing seats fixed to the inner side wall of the sorting machine body, two fixed plates fixed to the opposite side wall of the sorting machine body, and a reduction motor fixed to the inner side wall of the sorting machine body. A threaded rod is rotatably connected between the two bearing seats, and the output shaft of the reduction motor is drivenly connected to the threaded rod. A guide rod is fixed between the two fixed plates. A movable seat is connected between the threaded rod and the guide rod. The movable seat is threadedly connected to the threaded rod and slidably connected to the guide rod. Two sets of driving cleaning structures are symmetrically fixed on the upper and lower parts of the movable seat. A conveying channel is provided inside the movable seat and is fixedly connected to the two sets of driving cleaning structures through a hose. A water pipe connector is fixed to the side end of the movable seat and communicates with the internal conveying channel. The water pipe connector is also connected to the external circulating water supply structure pipe.

[0009] Furthermore, the drive cleaning structure includes two mounting seats fixed on both sides of the movable seat, a cleaning plate is connected between the two mounting seats by a rotating shaft, and a waterproof motor is fixed on one of the mounting seats. The output shaft of the waterproof motor passes through the mounting seat and is connected to the rotating shaft of the cleaning plate. The cleaning plate is hollow inside and is connected to the conveying channel of the movable seat through a hose. Multiple nozzles are evenly fixed on the top of the cleaning plate and communicate with the interior.

[0010] Furthermore, a rigid brush plate is fixed to one side of the top of the cleaning plate, and the rigid brush plate can contact the screen and the chute when the movable seat is in a vertical position.

[0011] Furthermore, limiters are fixed to the top of both bearing seats, and the limiters, bearing seats, and waterproof motor are electrically connected to the PLC control box.

[0012] Furthermore, the length of the upper discharge plate is twice that of the lower discharge plate, and suitable collection frames can be placed on the extended edges of both the upper and lower discharge plates.

[0013] Furthermore, the circulating water supply structure includes a collection tank and a high-pressure water pump fixed at the bottom of the sorting machine body. A filter box is fixed inside the collection tank, and a water pipe connected to the input end of the high-pressure water pump passes through the collection tank and enters the filter box. A delivery pipe is connected to the output end of the high-pressure water pump. The delivery pipe passes through the sorting machine body and is fixedly connected to a diversion pipe. The diversion pipe is fixed outside the sorting machine body, and a connecting hose is fixedly connected to the diversion pipe. The connecting hose passes through the sorting machine body and is fixedly connected to the water pipe connector.

[0014] Furthermore, the filter box includes an outer frame, and a filter screen and filter cotton assembly are fixed inside the outer frame.

[0015] Furthermore, the collection pool is fixedly connected to a drain pipe, which passes through the sorting machine body and is equipped with a control valve.

[0016] Furthermore, the collection pool is fixedly connected to a water supply pipe, which runs through the sorting machine body and is equipped with a control valve connected to an external water supply pipe.

[0017] Compared with related technologies, the automated sorting equipment for lab-grown diamonds provided by this invention has the following advantages:

[0018] This invention provides a method for the efficient and automatic sorting of lab-grown diamonds of varying sizes by using a PLC control box for precise control, combined with a vibrating plate and guide plate driven by a vibrating motor. This design not only improves sorting speed but also significantly enhances sorting accuracy, meeting the demands of modern production for high efficiency and high quality.

[0019] This invention provides a circulating water supply structure and an auxiliary conveying and cleaning device. Filtered water is delivered via a high-pressure water pump, and in conjunction with the driving cleaning structure on the moving base, the screen and chute are subjected to high-pressure flushing, effectively preventing jamming and clogging of the cultured diamonds. Simultaneously, a waterproof motor-driven rigid brush plate further cleans the screen and chute during its return process, ensuring continuous and stable operation of the equipment, reducing the frequency and cost of manual cleaning, and effectively maintaining the cleanliness of the screen and chute. This reduces equipment failures caused by dirt accumulation, extends the equipment's service life, and lowers maintenance costs.

[0020] This invention provides a water resource recycling system through a combination of a collection tank, a filter box, and a high-pressure water pump. The water generated during the flushing process is collected and re-extracted for reuse, significantly reducing water waste and aligning with current green and environmentally friendly production principles.

[0021] In summary, by controlling the overall operation of the device through a PLC control box, multiple functions such as vibration sorting, circulating water flushing, and auxiliary conveying and cleaning are organically combined. This equipment not only effectively solves the problems of screen clogging and diamond displacement difficulties, but also cleans the screens and chutes, keeping them clean and tidy, thereby improving sorting efficiency and accuracy. At the same time, this equipment also achieves water resource recycling, reducing waste and environmental pollution. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an automated sorting device for lab-grown diamonds according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of an automated sorting device for lab-grown diamonds according to the present invention.

[0024] Figure 3 This is a schematic diagram of the guide plate of the present invention;

[0025] Figure 4 This is a schematic diagram of the circulating water supply structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the auxiliary conveying and cleaning device of the present invention;

[0027] Figure 6 This is a partially enlarged schematic diagram of the auxiliary conveying and cleaning device of the present invention;

[0028] Figure 7 This is a schematic diagram of the drive cleaning structure of the present invention.

[0029] The diagram shows the following components: 1. Sorting machine body; 2. PLC control box; 3. Feeding funnel; 4. Upper discharge plate; 5. Lower discharge plate; 6. Circulating water supply structure; 61. Collection tank; 62. Filter box; 63. High-pressure water pump; 64. Conveying pipe; 65. Diverting pipe; 66. Connecting hose; 7. Guide plate; 71. Slide chute; 72. Drainage net; 8. Auxiliary conveying and cleaning device; 81. Gear motor; 82. Bearing seat; 83. Threaded rod; 84. Guide rod; 85. Moving seat; 851. Water pipe connector; 86. Drive cleaning structure; 861. Mounting base; 862. Cleaning plate; 863. Hard brush plate; 864. Nozzle; 865. Waterproof motor; 9. Vibrating plate; 91. Screen; 92. Support plate; 93. Vibrating spring. Detailed Implementation

[0030] Example 1, by Figure 1-7An automatic sorting device for lab-grown diamonds is provided, comprising a sorting body 1, a PLC control box 2 externally fixedly installed and electrically connected to an external power supply, a circulating water supply structure 6 fixedly installed at the bottom of the sorting body 1, vibrating plates 9 and guide plates 7 arranged vertically inside the sorting body 1, an auxiliary conveying and cleaning device 8 arranged between the vibrating plates 9 and guide plates 7, the auxiliary conveying and cleaning device 8 being connected to the water supply structure 6 via a water pipe, and two sets of vibrating springs 93 fixedly attached to the bottom edges of the screen 91, with two support plates 92 fixedly attached to the bottom of the two sets of vibrating springs 93, the two support plates 92 being fixedly connected to the inner sides of the sorting body 1. A vibration motor is fixed at the bottom of the vibrating plate 9. The vibration motor is electrically connected to the PLC control box 2. The front of the sorting machine body 1 has openings at the top and bottom. The upper discharge plate 4 and the lower discharge plate 5 are fixedly installed at the two openings, and the upper discharge plate 4 and the lower discharge plate 5 are partially inserted into the sorting machine body 1. They are located below the lowest point of the vibrating plate 9 and the guide plate 7, respectively. The guide plate 7 is fixedly connected to the vibrating plate 9 through a bracket. The top of the guide plate 7 has a sliding groove 71, and the sliding groove 71 has an installation groove near the lowest point. A water seepage net 72 is fixed in the installation groove. The top of the sorting machine body 1 has an inlet, and a feeding funnel 3 is fixedly installed at the inlet.

[0031] In this embodiment, the auxiliary conveying and cleaning device 8 includes two bearing seats 82 fixed to the inner side wall of the sorting machine body 1, two fixing plates fixed to the opposite side wall of the sorting machine body 1, and a reduction motor 81 fixed to the inner side wall of the sorting machine body 1. A threaded rod 83 is rotatably connected between the two bearing seats 82. The output shaft of the reduction motor 81 is connected to the threaded rod 83. A guide rod 84 is fixed between the two fixing plates. A movable seat 85 is connected between the threaded rod 83 and the guide rod 84. The movable seat 85 is threadedly connected to the threaded rod 83 and slidably connected to the guide rod 84. Two sets of driving cleaning structures 86 are symmetrically fixed on the upper and lower parts of the movable seat 85. A conveying channel is provided inside the movable seat 85 and is fixedly connected to the two sets of driving cleaning structures 86 through a hose. A water pipe connector 851 is fixed on the side of the movable seat 85 and communicates with the internal conveying channel. The water pipe connector 851 is connected to the external circulating water supply structure 6.

[0032] Specifically, the entire device is controlled by a PLC control box 2. During operation, the PLC controls the vibration motor, which drives the inclined vibrating plate 9 and guide plate 7 to vibrate. The operator pours cultured diamonds of different sizes from the feeding funnel 3 into the sorting machine body 1. The cultured diamonds of different sizes fall into the screen 91 and are displaced downwards by vibration. The smaller cultured diamonds pass through the mesh of the screen 91 and fall onto the chute 71 of the guide plate 7, while the cultured diamonds that do not pass through continue to move downwards and fall onto the upper discharge plate 4 to be discharged from the sorting machine body 1 for collection. The smaller cultured diamonds that fall into the chute 71 of the guide plate 7 are displaced downwards by vibration and fall onto the lower discharge plate 5 to be discharged from the sorting machine body 1 for collection, thereby realizing the automatic screening of cultured diamonds.

[0033] The upper discharge plate 4 is twice the length of the lower discharge plate 5, and both the upper discharge plate 4 and the lower discharge plate 5 can have a suitable collection frame placed on their extended edges.

[0034] In this embodiment, the driving cleaning structure 86 includes two mounting seats 861 fixed on both sides of the movable seat 85. A cleaning plate 862 is connected between the two mounting seats 861 by a rotating shaft. A waterproof motor 865 is fixed on one of the mounting seats 861. The output shaft of the waterproof motor 865 passes through the mounting seat 861 and is connected to the rotating shaft of the cleaning plate 862 for transmission. The cleaning plate 862 is hollow inside and is connected to the conveying channel of the movable seat 85 through a flexible hose. A plurality of nozzles 864 are evenly fixed on the top of the cleaning plate 862. The plurality of nozzles 864 are connected to the cleaning plate 862 by a rotating shaft. The cleaning plate 862 is internally connected; a rigid brush plate 863 is fixed to one side of the top of the cleaning plate 862, and the rigid brush plate 863 can contact the screen 91 and the slide 71 when the cleaning plate 862 is in a vertical state; limiters are fixed to the top of the two bearing seats 82, and the limiters, bearing seats 82 and waterproof motor 865 are electrically connected to the PLC control box 2 respectively; limiters are installed on the two bearing seats 82 connected to the threaded rod 83. When the moving seat 85 moves to the end of the threaded rod 83, the limiter detects the signal and moves it to the end of the threaded rod 83. The signal is sent to the PLC control box. The PLC control box 2 controls the high-pressure water pump 63 to stop working, and then controls the geared motor 81 to rotate, driving the threaded rod 83 to rotate, thereby driving the moving seat 85 to return to its original position. During the return process, the PLC control electrically controls the two driving cleaning structures 86 to rotate slightly and keep them vertical with the moving seat 85. During the return process of the moving seat 85, the two driving cleaning structures 86 respectively squeeze and rub against the screen 91 and the slide 71, which can squeeze out the cultured diamonds that have not been flushed out of the screen 91, and also clean the screen 91 and the slide 71. After cleaning the stains on the surface of the tank 71, the moving seat 85 returns to its original position and is sensed by another limit switch. Upon detection of the return, the PLC control box 2 controls two waterproof motors 865 to drive the two cleaning plates 862 back to a V-shape, controls the high-pressure water pump 63 to pump water, and then controls the geared motor 81 to rotate forward, driving the threaded rod 83 to drive the moving seat 85 to move for rinsing. This process is repeated to fully realize the cleaning of blockages in the sorting process of cultured diamonds and to drive the displacement and feeding of cultured diamonds. It can also clean the screen 91 and the guide plate 7, keeping them clean.

[0035] Specifically, the circulating water supply structure 6 delivers water to the movable seat 85 via the connecting hose 66, and then distributes it through the conveying channel and hose to the two drive cleaning structures 86 for spraying out. This sprays water to clean the cultured diamonds on the screen 91 and the chute 71. The two drive cleaning structures 86 are initially arranged in a V-shape with an upward and downward inclination. During the cleaning process, the PLC control box 2 controls the reduction motor 81 to work. The reduction motor 81 drives the threaded rod 83 to rotate and engages with the threaded transmission of the movable seat 85. In conjunction with the guide rod 84, the movable seat 85 is stably displaced inside the sorting machine body 1, which can completely clean the screen 91 and the chute 71. This not only flushes out the cultured diamonds stuck in the screen 91, but also flushes the cultured diamonds in the screen 91 and the chute 71 downward, so that all the cultured diamonds can slide out and be collected.

[0036] In this embodiment, the circulating water supply structure 6 includes a collection tank 61 fixed to the bottom of the sorting machine body 1 and a high-pressure water pump 63. A filter box 62 is fixed inside the collection tank 61, and the input end of the high-pressure water pump 63 is connected to a water pipe that passes through the collection tank 61 and enters the filter box 62. The output end of the high-pressure water pump 63 is connected to a delivery pipe 64. The delivery pipe 64 passes through the sorting machine body 1 and is fixedly connected to a diversion pipe 65. The diversion pipe 65 is fixed outside the sorting machine body 1 and is fixedly connected to a connecting hose 66. The connecting hose 66 passes through the sorting machine body 1 and is fixedly connected to a water pipe connector 851.

[0037] Specifically, the collection tank 61 can collect the water that falls into the tank, and the high-pressure water pump 63 extracts the water from the collection tank 61 and transports it to the diversion pipe 65 through the delivery pipe 64. The water in the diversion pipe 65 is then transported to the auxiliary conveying and cleaning device through the connecting hose 66 for rinsing.

[0038] The filter box 62 includes an outer frame, inside which a filter screen and filter cotton assembly are fixed. During the water extraction process, the filter screen and filter cotton assembly filter impurities in the water, making the extracted water relatively clean.

[0039] The collection tank 61 is fixedly connected to a drain pipe, which passes through the sorting machine body 1 and is equipped with a control valve. By opening the control valve, the water in the collection tank 61 can be discharged.

[0040] The collection tank 61 is fixedly connected to a water supply pipe. The water supply pipe runs through the sorting machine body 1 and is equipped with a control valve that connects to an external water supply pipe. A liquid level sensor can be installed in the collection tank 1 and electrically connected to the PLC control box 2 for liquid level monitoring. When the liquid level in the collection tank 1 is insufficient, the liquid level sensor sends a message, the PLC control box 2 stops the high-pressure water pump 63, and the control valve is manually opened to allow the external delivery pipe to supply liquid into the collection tank 1.

[0041] In Embodiment 2, based on Embodiment 1, the driving cleaning structure 86 includes two mounting seats 861 fixed on both sides of the movable seat 85. A cleaning plate 862 is connected between the two mounting seats 861 by a rotating shaft. A waterproof motor 865 is fixed on one of the mounting seats 861. The output shaft of the waterproof motor 865 passes through the mounting seat 861 and is connected to the rotating shaft of the cleaning plate 862. The cleaning plate 862 is hollow inside and is connected to the conveying channel of the movable seat 85 through a flexible hose. Multiple nozzles 864 are evenly fixed on the top of the cleaning plate 862 and communicate with the interior. A rigid brush plate 863 is fixed on one side of the top of the cleaning plate 862. When the movable seat 85 is in a vertical position, the rigid brush plate 863 can contact the screen 91 and the chute 71.

[0042] Specifically, the drive cleaning structure 86 delivers water to the movable seat 85, and then distributes it to the two drive cleaning structures 86 through a delivery channel and hose. The two drive cleaning structures 86 initially form a V-shape with upward and downward inclination. Multiple nozzles 864 on the two cleaning plates 862 are directed towards the screen 91 and the chute 71, respectively. The water is delivered into the cleaning plates 862, and high-pressure water is sprayed from the multiple nozzles 864 to flush the culture medium on the screen 91 and the chute 71. When the movable seat 85 is stably displaced inside the sorting machine body 1, it can completely flush the screen 91 and the chute 71, both flushing out any cultured diamonds stuck in the screen 91 and flushing the culture medium in the screen 91 and the chute 71. As the cultured diamonds shift downwards, they can all slide out for collection. During the return process of the drive seat 85, the PLC controls the waterproof motors 865 in the two drive cleaning structures 86 to work. The waterproof motors 865 drive the cleaning plates 862 to rotate slightly, keeping the two cleaning plates 862 vertical with the drive seat 85. The two hard brush plates 863 on the upper and lower cleaning plates 862 contact the screen 91 and the slide 71 respectively. During the return process of the drive seat 85, the two hard brush plates 863 squeeze and rub against the screen 91 and the slide 71 respectively, which can squeeze out the cultured diamonds that have not been flushed out of the screen 91 and clean the stains on the surface of the screen 91 and the slide 71.

[0043] Working principle:

[0044] The entire device is controlled by a PLC control box 2. During operation, the PLC controls the vibration motor, which drives the inclined vibration plate 9 and guide plate 7 to vibrate. The operator pours cultured diamonds of different sizes from the feeding funnel 3 into the sorting machine body 1. The cultured diamonds of different sizes fall into the screen 91 and are displaced downward by vibration. The smaller cultured diamonds pass through the mesh of the screen 91 and fall onto the slide groove 71 of the guide plate 7, while the cultured diamonds that do not pass through the mesh continue to move downward and fall onto the upper discharge plate 4 and are discharged from the sorting machine body 1 for collection. The smaller cultured diamonds that fall into the slide groove 71 of the guide plate 7 are displaced downward by vibration and are discharged from the sorting machine body 1 onto the lower discharge plate 5 for collection, thereby realizing the automatic screening of cultured diamonds.

[0045] During vibration, some cultured diamonds are easily stuck in the mesh of screen 91, and some cultured diamonds have irregular shapes and high friction, making it difficult for them to move in screen 91 and guide plate 7 groove 71. At this time, PLC control box 2 controls the circulating water supply structure 6 and auxiliary conveying and cleaning device 8 to work.

[0046] A high-pressure water pump 63 extracts water from the collection tank 61. During the extraction process, the water is filtered through a filter box 62 to maintain its cleanliness. The high-pressure water pump 63 delivers the water through a delivery pipe 64 to a distribution pipe 65. The water in the distribution pipe 65 is then delivered to a movable seat 85 through a connecting hose 66, and further distributed through a delivery channel and hose to two drive cleaning structures 86. The two drive cleaning structures 86 are initially arranged in an inclined V-shape. Multiple nozzles 864 on the two cleaning plates 862 are directed towards the screen 91 and the chute 71, respectively. The water is delivered into the cleaning plates 862, and high-pressure water is sprayed from the multiple nozzles 864 to rinse the substrate on the screen 91 and the chute 71.

[0047] During the flushing process, the PLC control box 2 controls the geared motor 81 to work. The geared motor 81 drives the threaded rod 83 to rotate and engages with the moving seat 85 via threaded transmission. In conjunction with the guide rod 84, the moving seat 85 is stably displaced within the sorting machine body 1, allowing for complete flushing of the screen 91 and the chute 71. This flushes out any cultured diamonds stuck in the screen 91 and displaces them downwards, allowing them to slide out and be collected. Limiters are installed on the two bearing seats 82 connected to the threaded rod 83. When the moving seat 85 moves to the end of the threaded rod 83, the limiters detect a signal and send it to the PLC control box. The PLC control box 2 then controls the high-pressure water pump 63 to stop working and controls the geared motor 81 to rotate, driving the threaded rod 83 to rotate and thus driving the moving seat 85 back to its original position. During the return process, the PLC control box electrically controls the waterproof motors 865 in the two drive cleaning structures 86 to operate. 5. The cleaning plates 862 are rotated slightly to keep them vertical with the moving seat 85. The two hard brush plates 863 on the upper and lower cleaning plates 862 contact the screen 91 and the chute 71 respectively. During the return of the moving seat 85, the two hard brush plates 863 squeeze and rub against the screen 91 and the chute 71 respectively, which can squeeze out the cultured diamonds that have not been flushed out of the screen 91 and clean the stains on the surface of the screen 91 and the chute 71. After the moving seat 85 returns to its original position, it is sensed by another limiter. After the return is detected, the PLC control box 2 controls the two waterproof motors 865 to drive the two cleaning plates 862 to return to a V shape, controls the high-pressure water pump 63 to pump water, and then controls the geared motor 81 to rotate forward to drive the threaded rod 83 to drive the moving seat 85 to move for rinsing. This process is repeated to fully realize the cleaning of blockages in the cultured diamond sorting process and to drive the cultured diamonds to move and be fed. It can also clean the screen 91 and the guide plate 7 to keep them clean.

[0048] During the flushing process, the flushed water falls into the chute 71 and into the collection pool 61 through the gaps on both sides. Most of the water in the chute 71 also slides down and falls into the collection pool 61 through the seepage net. The collected water is then pumped out again by the high-pressure water pump 63, thereby realizing the recycling of water resources and reducing waste.

Claims

1. An automatic sorting device for lab-grown diamonds, comprising a sorting body (1), characterized in that: The sorting machine body (1) is externally fixedly equipped with a PLC control box (2) which is electrically connected to an external power supply. The bottom of the sorting machine body (1) is fixedly equipped with a circulating water supply structure (6). The sorting machine body (1) is internally equipped with a vibrating plate (9) and a guide plate (7) arranged at the top and bottom. An auxiliary conveying and cleaning device (8) is arranged between the vibrating plate (9) and the guide plate (7). The auxiliary conveying and cleaning device (8) is connected to the water pipe of the circulating water supply structure (6). Two sets of vibration springs (93) are fixed on the bottom two sides of the screen (91). Two support plates (92) are fixed at the bottom of the two sets of vibration springs (93). The two support plates (92) are fixedly connected to the inside two sides of the sorting machine body (1). The bottom of the vibrating plate (9) is fixed with a vibration spring. The motor and the vibration motor are electrically connected to the PLC control box (2). The front of the sorting machine body (1) has openings at the top and bottom. The upper discharge plate (4) and the lower discharge plate (5) are fixedly installed at the two openings respectively. The upper discharge plate (4) and the lower discharge plate (5) are partially inserted into the sorting machine body (1) and are located below the lowest point of the vibration plate (9) and the guide plate (7) respectively. The guide plate (7) is fixedly connected to the vibration plate (9) through a bracket. The top of the guide plate (7) has a sliding groove (71), and the sliding groove (71) has an installation groove near the lowest point. A water seepage net (72) is fixed in the installation groove. The top of the sorting machine body (1) has an inlet, and a feeding funnel (3) is fixedly installed at the inlet. The auxiliary conveying and cleaning device (8) includes two bearing seats (82) fixed to the inner side wall of the sorting machine body (1), two fixing plates fixed to the opposite side wall of the sorting machine body (1), and a reduction motor (81) fixed to the inner side wall of the sorting machine body (1). A threaded rod (83) is rotatably connected between the two bearing seats (82). The output shaft of the reduction motor (81) is connected to the threaded rod (83) in a transmission manner. A guide rod (84) is fixed between the two fixing plates. The threaded rod (83) and the guide rod (84) are connected. There is a movable seat (85), which is threadedly connected to the threaded rod (83) and slidably connected to the guide rod (84). The movable seat (85) has two sets of driving cleaning structures (86) fixed symmetrically on its upper and lower sides. The movable seat (85) has a conveying channel inside and is fixedly connected to the two sets of driving cleaning structures (86) through a hose. The movable seat (85) has a water pipe connector (851) fixed on its side end, which is connected to the internal conveying channel and is connected to the external circulating water supply structure (6) pipe. The drive cleaning structure (86) includes two mounting seats (861) fixed on both sides of the movable seat (85). A cleaning plate (862) is connected between the two mounting seats (861) by a rotating shaft. A waterproof motor (865) is fixed on one of the mounting seats (861). The output shaft of the waterproof motor (865) passes through the mounting seat (861) and is connected to the rotating shaft of the cleaning plate (862) for transmission. The cleaning plate (862) is hollow inside and is connected to the conveying channel of the movable seat (85) through a flexible hose. Multiple nozzles (864) are evenly fixed on the top, and the multiple nozzles (864) are connected to the interior of the cleaning plate (862); a hard brush plate (863) is fixed on one side of the top of the cleaning plate (862), and the hard brush plate (863) can contact the screen (91) and the slide (71) when the cleaning plate (862) is in a vertical state; limiters are fixed on the top of the two bearing seats (82), and the limiters, bearing seats (82) and waterproof motor (865) are electrically connected to the PLC control box (2) respectively; The two drive cleaning structures (86) are initially in a V-shaped configuration with the upper and lower sides tilted. Multiple nozzles (864) on the two cleaning plates (862) face the screen (91) and the chute (71) respectively. During the return of the drive moving seat (85), the PLC controls the waterproof motor (865) in the two drive cleaning structures (86) to work. The waterproof motor (865) drives the cleaning plate (862) to rotate slightly, so that the two cleaning plates (862) and the moving seat (85) remain vertical. The two hard brush plates (863) on the upper and lower cleaning plates (862) contact the screen (91) and the chute (71) respectively.

2. The automated sorting equipment for lab-grown diamonds according to claim 1, characterized in that, The length of the upper discharge plate (4) is twice that of the lower discharge plate (5), and both the upper discharge plate (4) and the lower discharge plate (5) can have a suitable collection frame placed on their extended edges.

3. The automated sorting equipment for lab-grown diamonds according to claim 1, characterized in that, The circulating water supply structure (6) includes a collection tank (61) fixed inside the bottom of the sorting machine body (1) and a high-pressure water pump (63). A filter box (62) is fixed inside the collection tank (61), and the input end of the high-pressure water pump (63) is connected to a water pipe that passes through the collection tank (61) and enters the filter box (62). The output end of the high-pressure water pump (63) is connected to a delivery pipe (64). The delivery pipe (64) passes through the sorting machine body (1) and is fixedly connected to a diversion pipe (65). The diversion pipe (65) is fixed outside the sorting machine body (1). The diversion pipe (65) is fixedly connected to a connecting hose (66). The connecting hose (66) passes through the sorting machine body (1) and is fixedly connected to a water pipe connector (851).

4. The automated sorting equipment for lab-grown diamonds according to claim 3, characterized in that, The filter box (62) includes an outer frame, and a filter screen and filter cotton assembly are fixed inside the outer frame.

5. An automatic sorting device for lab-grown diamonds according to claim 3, characterized in that, The collection pool (61) is fixedly connected to a drain pipe, which passes through the sorting machine body (1) and is equipped with a control valve.

6. An automatic sorting device for lab-grown diamonds according to claim 3, characterized in that, The collection pool (61) is fixedly connected to a water supply pipe, which runs through the sorting machine body (1) and is equipped with a control valve connected to an external water supply pipe.

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