Diamond separating device

Abstract

The invention relates to the field of diamond purification equipment, in particular to a diamond separation device which comprises a separation box, a mounting frame, a bearing separation mechanism and a stirring collection mechanism. The bearing and separating mechanism comprises a net-shaped supporting plate. The stirring and collecting mechanism comprises a transverse plate and a sleeve which downwards penetrates through the transverse plate and is spirally matched with the transverse plate, and further comprises a sleeve driving assembly for driving the sleeve to rotate and move up and down, and further comprises a central pipe, and at least two through holes are formed in the side wall of the central pipe; the stirring and collecting mechanism further comprises stirring and collecting units in one-to-one correspondence with the through holes, each stirring and collecting unit comprises an upper cross arm, a lower cross arm and a magnetic attraction frame connected between the upper cross arm and the lower cross arm, and the inner end of each magnetic attraction frame extends into the corresponding through hole. The stirring and collecting unit further comprises an annular belt wound outside the magnetic attraction frame body and an annular belt driving assembly; the stirring and collecting mechanism further comprises a scraping plate arranged in the central pipe and a collecting barrel connected to the bottom of the central pipe.

Description

Technical Field

[0001] The invention relates to the field of diamond purification equipment, in particular to a separation device for diamonds. Background Art

[0002] During the production process of diamonds, various metal impurities will be introduced into the diamonds. The presence of these metal impurities not only affects the appearance and performance of diamonds, but also limits their application in industrial and scientific fields. Therefore, the purification process is a crucial link in the production of artificial diamonds.

[0003] A Chinese patent with authorization announcement number CN112958530B discloses a washing machine for purifying artificial diamonds. The separation mechanism drives the shaking mechanism to drive the water and artificial diamond material in the filter cartridge to move back and forth horizontally, and at the same time drives the filter cartridge to rotate back and forth around the central axis of the slide rod, so that the artificial diamond material in the filter cartridge is fully mixed with the water sprayed from the water nozzle, so as to separate impurities from the artificial diamonds.

[0004] In the above patent, the separation of diamonds and metal impurities is achieved by using a shaking mechanism to flip the diamonds and mix them with water. However, in the prior art, the diamonds are piled up at the bottom of the filter cartridge 1. Although the shaking mechanism can drive the filter cartridge 1 to move back and forth and rotate back and forth, so that the diamonds shake to a certain extent, the shaking amplitude is limited; in actual work, some diamonds are always trapped inside other diamonds, resulting in the inability of water to wash the metal impurities outside them. In addition, due to the accumulation of diamonds, the metal impurities washed out from the surface of the diamonds are easily trapped between the diamonds, so that they cannot be removed, resulting in poor separation effect. Summary of the invention

[0005] The invention provides a separation device for diamonds, so as to solve the technical problem in the prior art that diamonds are accumulated at the bottom of a filter cylinder, resulting in that metal impurities are difficult to be washed away and the separation effect is poor.

[0006] In order to solve the above problems, the present invention provides a separation device for diamonds, which adopts the following technical solution: a separation device for diamonds, comprising a separation box, a mounting frame fixed on the separation box, the separation box having a separation tank for containing liquid; and a supporting separation mechanism and a stirring collection mechanism;

[0007] The supporting and separating mechanism comprises a mesh supporting plate which is lifted and assembled in the separation tank, and the mesh supporting plate is used to support the diamond and separate from the diamond when descending so that the diamond settles in the separation tank;

[0008] The stirring and collecting mechanism includes a horizontal plate fixedly mounted on the mounting frame and located above the separation box, a sleeve that penetrates downward through the horizontal plate and is spirally matched with the horizontal plate, and also includes a sleeve driving assembly that drives the sleeve to rotate and move up and down, and also includes a central tube whose upper end is fixedly sealed with the sleeve, and at least two through holes uniformly distributed in the circumferential direction are opened on the side wall of the central tube; the stirring and collecting mechanism also includes a stirring and collecting unit corresponding to the through holes one by one, the stirring and collecting unit includes an upper cross arm, a lower cross arm, and a magnetic frame connected between the upper cross arm and the lower cross arm, which are fixedly mounted on the central tube and extend radially along the central tube, and the inner end of the magnetic frame extends into the through hole, the stirring and collecting unit also includes an annular belt wrapped around the outside of the magnetic frame and an annular belt driving assembly that drives the annular belt to circulate to transport metal impurities into the central tube; the stirring and collecting mechanism also includes a scraper arranged in the central tube, and the scraper is used to scrape the metal impurities on the annular belt into the central tube; the stirring and collecting mechanism includes a collecting cylinder connected to the bottom of the central tube.

[0009] The technical effect is that the mesh support plate can quickly descend after supporting the diamond, so as to separate from the diamond, and make the diamond sink in the separation tank by itself. Since the volume of each diamond is different, the sinking speed is different, so as to achieve stratification. During the sinking process of the diamond, the stirring collection unit enters the separation tank, and the annular belt can stir the liquid when rotating with the central tube, which is easy to separate the metal impurities and the diamond. The magnetic frame adsorbs the metal impurities on the annular belt. With the circular motion of the annular belt, the metal impurities are sent into the central tube and scraped off by the scraper, so that the metal impurities enter the collection tube to complete the collection. Compared with the method in the prior art where diamonds are accumulated at the bottom of the filter tube, in the present invention, the diamonds can be separated during the sinking process, which is easy to separate the metal impurities from the diamonds, and the metal impurities are directly adsorbed and transported to the collection tube to avoid being attached to the diamonds again, and the separation effect is better.

[0010] As a further improved solution, the sleeve drive assembly includes a fixed shaft and a rotating shaft arranged in sequence from the inside to the outside, the fixed shaft is fixedly mounted on the mounting frame and extends up and down, the rotating shaft is rotatably mounted on the fixed shaft, the sleeve is relatively fixed in the circumferential direction and relatively slidably mounted on the outside of the rotating shaft in the up and down directions, so that the rotating shaft drives the sleeve to move up and down and rotate; the sleeve drive assembly also includes a driven gear fixedly mounted on the outside of the upper end of the rotating shaft.

[0011] As a further improved solution, the sleeve, fixed shaft, rotating shaft, and driven gear are arranged in sequence along a straight line, and at least two of them are arranged in sequence, and the sleeve driving assembly includes a transmission belt wound around the outside of each driven gear, and also includes a driving gear meshed with the transmission belt and a driving motor driving the driving gear to rotate, and the driving motor is arranged on a mounting frame. A transmission belt can simultaneously drive multiple driven gears and sleeves to rotate, requiring fewer power sources, lower costs, and easy to achieve synchronous rotation.

[0012] As a further improved solution, the annular belt drive assembly includes a rotating shaft installed inside each magnetic frame and rotatably installed around an axis extending up and down, and a first gear and a second gear are fixedly mounted on the rotating shaft in sequence along the up and down directions, and the second gear is meshed with the annular belt to drive the annular belt to move;

[0013] The annular belt drive assembly also includes a center rod, the upper end of which is slidably installed in the center position of the fixed shaft, and the center rod and the fixed shaft are assembled together to prevent rotation; a center gear that meshes with each first gear is fixed on the center rod; a support frame is also fixedly installed on the outside of the center rod, and the support frame and the sleeve are assembled together so that they are relatively fixed in the up and down directions and relatively rotatable in the circumferential direction, so that the center rod and the center gear can rise and fall with the sleeve.

[0014] The annular belt can be driven by the central gear, the first gear, the rotating shaft and the second gear during the rotation of the sleeve, and no external power source needs to be added, so the use cost is lower.

[0015] As a further improved solution, the scraper is fixedly sleeved on the outside of the lower end of the central rod, and the scraper has scraping edges corresponding to each annular belt.

[0016] As a further improved solution, a spiral groove is provided on the outside of the sleeve, a through hole is provided in the transverse plate for the sleeve to pass through, and a protrusion that penetrates into the spiral groove is provided on the inner wall of the through hole.

[0017] As a further improved solution, the top of the sleeve is provided with a top annular groove connected to the spiral groove, and the rotating shaft is provided with a top elastic member, which is used to apply a downward elastic force to the sleeve when the sleeve moves upward to the upper limit position;

[0018] The bottom of the sleeve is provided with a bottom ring groove connected to the spiral groove, and the outside of the central tube is provided with a bottom spring, which is used to press against the mesh support plate when the sleeve moves downward to the lower limit position to apply an upward elastic force to the sleeve. Through the top elastic member and the bottom spring, an elastic force can be applied to the sleeve at the initial stage of the sleeve's reverse rotation, so that the protrusion can smoothly enter the spiral groove, thereby realizing the up and down movement while rotating.

[0019] As a further improved solution, the top elastic member includes a fixed ring fixed on the rotating shaft and a sliding ring slidably assembled on the rotating shaft, and also includes a top spring connecting the fixed ring and the sliding ring.

[0020] As a further improved solution, the magnetic frame includes a plurality of magnetic blocks arranged at intervals, and the magnetic blocks are connected between the upper cross arm and the lower cross arm.

[0021] As a further improved solution, the separation device also includes a pushing mechanism, which is used to push the diamonds on the mesh support plate when the mesh support plate rises to the top of the separation tank. The pushing mechanism includes a pushing plate and a pushing cylinder that drives the pushing plate to move horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0023] Figure 1 A three-dimensional diagram of a diamond separation device in the present invention;

[0024] Figure 2 It is a front view of the diamond separation device in the present invention;

[0025] Figure 3 A top view of a diamond separation device according to the present invention;

[0026] Figure 4 for Figure 3 Sectional view of section AA;

[0027] Figure 5 A top view of a horizontal plate in a diamond separation device of the present invention;

[0028] Figure 6 It is a schematic diagram of the assembly of the stirring and collecting mechanism and the crossbeam in the diamond separation device of the present invention;

[0029] Figure 7 for Figure 6 Cross-sectional view of the middle BB section;

[0030] Figure 8 for Figure 7 The enlarged view of point B in the middle;

[0031] Fig. 9 It is a stereoscopic diagram of a sleeve, a rotating shaft, a central tube, and a stirring and collecting unit in a stirring and collecting mechanism in a diamond separation device of the present invention assembled together;

[0032] Fig.10 It is a three-dimensional diagram of the assembly of the rotating shaft and the keyway in the diamond separation device of the present invention;

[0033] Fig.11 A three-dimensional diagram of a sleeve in a diamond separation device of the present invention;

[0034] Fig.12 It is a front view of a sleeve, a rotating shaft, a central tube, and a stirring and collecting unit in a stirring and collecting mechanism of a diamond separation device of the present invention assembled together;

[0035] Fig.13 for Fig.12 Sectional view of the CC section;

[0036] Fig.14 It is a stereoscopic diagram of the stirring collection unit, the annular belt driving unit and the central tube in the stirring collection mechanism of the diamond separation device of the present invention assembled together;

[0037] Fig.15 for Fig.14 Schematic diagram after removing the center rod, first gear, second gear and annular belt.

[0038] Description of reference numerals:

[0039] 1. Separation box; 11. Separation tank; 12. Feeding box; 13. Opening;

[0040] 2. Mounting frame; 21. Column; 22. Beam;

[0041] 3. Support and separation mechanism; 31. Net-shaped support plate; 32. Guide cylinder; 33. Lifting cylinder; 34. Guide plate;

[0042] 41, horizontal plate; 42, sleeve; 43, center tube; 44, collecting tube; 45, scraper; 46, perforation; 47, protrusion; 48, spiral groove; 49, top ring groove; 410, bottom ring groove; 411, keyway; 412, fixed shaft; 413, rotating shaft; 413a, spline; 414, driven gear; 415, transmission belt; 416, driving motor; 417, driving gear; 418, fixed ring ; 419, sliding ring; 420, top spring; 421, through hole; 422, bottom spring; 423, upper cross arm; 424, lower cross arm; 425, magnetic frame; 426, annular belt; 427, magnetic block; 428, avoidance groove; 429, rotating shaft; 430, first gear; 431, second gear; 432, center rod; 433, support frame; 434, center gear; 435, scraping edge;

[0043] 5. Pushing mechanism; 51. Pushing cylinder mounting frame; 52. Pushing cylinder; 53. Pushing plate. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. The following is a detailed explanation of the principles and spirit of the present invention with reference to several representative embodiments of the present invention.

[0045] Specific embodiments of the diamond separation device provided by the present invention:

[0046] like Figures 1 to 15 As shown, the present invention provides a diamond separation device, including a separation box 1, a mounting frame 2, a supporting separation mechanism 3, a stirring and collecting mechanism and a pushing mechanism 5.

[0047] like Figures 1 to 4 As shown, the separation box 1 has a separation tank 11, which is used to hold liquid, and the liquid here can be water or other solvents. A feeding box 12 is installed on one side of the top of the separation box 1, and the feeding box 12 is used to add diamonds to the separation box 1. Openings 13 are respectively opened on the front and rear side walls of the top of the separation box 1.

[0048] The mounting frame 2 is a gantry structure, including two columns 21 and a crossbeam fixed on the top of the two columns 21 , and the two columns 21 are respectively fixed on the left and right sides of the separation box 1 .

[0049] The supporting and separating mechanism 3 includes a mesh support plate 31, a guide cylinder 32, a lifting cylinder 33 and a guide plate 34. The mesh support plate 31 is used to support diamonds. The mesh support plate 31 has mesh holes for liquid to pass through. There are two guide cylinders 32 arranged on the left and right, and the guide cylinders 32 are fixedly installed at the bottom of the mesh support plate 31. The guide plate 34 is fixedly installed in the separation tank 11. Two guide holes are provided on the guide plate 34. The guide cylinder 32 is slidably guided and assembled in the guide holes, and the guide cylinder 32 and the guide holes are sealed with each other. The lifting cylinder 33 is located below the guide plate 34. There are two lifting cylinders 33, which correspond to the two guide cylinders 32 one by one. The cylinder body of the lifting cylinder 33 is fixedly installed at the bottom of the separation tank 11, and the piston rod of the lifting cylinder 33 is fixedly installed on the guide cylinder 32. The lifting cylinder 33 drives the mesh support plate 31 to move up and down.

[0050] like Figures 2 to 15 As shown, the stirring and collecting mechanism includes a transverse plate 41 , a sleeve 42 , a sleeve driving assembly, a central tube 43 , a stirring and collecting unit, an annular belt driving assembly, a collecting cylinder 44 , a reset assembly, and a scraper 45 .

[0051] The left and right ends of the horizontal plate 41 are fixed on the column 21. The horizontal plate 41 is located above the separation box 1. Three through holes 46 that penetrate up and down are opened in the horizontal plate 41. A protrusion 47 is fixed on the hole wall of the through hole 46. The three through holes 46 are arranged in sequence left and right.

[0052] The sleeve 42 has a spiral groove 48 formed on the outside, a top annular groove 49 formed on the top and connected to the spiral groove 48, and a bottom annular groove 410 formed on the bottom and connected to the spiral groove 48. The sleeve 42 passes through the through hole 46, and the protrusion 47 is located in the spiral groove 48. The protrusion 47 can slide in the spiral groove 48, the top annular groove 49 and the bottom annular groove 410. The inner wall of the sleeve 42 has four key grooves 411 that pass through it from top to bottom.

[0053] The function of the sleeve drive assembly is to drive the sleeve 42 to rotate, and the sleeve 42 is lifted and lowered by the cooperation of the protrusion 47 and the spiral groove 48 while rotating. The sleeve drive assembly includes a fixed shaft 412, a rotating shaft 413, a spline 413a, a driven gear 414, a transmission belt 415, a drive motor 416, and a driving gear 417.

[0054] The top of the fixed shaft 412 is fixedly installed on the crossbeam 22, and the rotating shaft 413 is rotatably installed on the outside of the fixed shaft 412. The spline 413a is integrally formed on the outside of the rotating shaft 413. The number of splines 413a is equal to and corresponds to the keyway 411. The rotating shaft 413 penetrates into the sleeve 42, and the spline 413a penetrates into the keyway 411. When the rotating shaft 413 rotates, it can drive the sleeve 42 to rotate. At the same time, the spline 413a and the keyway 411 slide relative to each other, so that the sleeve 42 can be raised and lowered.

[0055] The driven gear 414 is fixedly mounted on the top of the rotating shaft 413. The driving motor 416 is fixedly mounted on the crossbeam 22, and the driving gear 417 is mounted on the motor shaft of the driving motor 416. The transmission belt 415 is wound around the driving gear 417 and the outside of each driven gear 414. When the driving motor 416 rotates, it can drive each rotating shaft 413 to rotate through the driving gear 417, the transmission belt 415, and the driven gear 414.

[0056] A top elastic member is installed on the outside of the rotating shaft 413, and the top elastic member is located above the sleeve 42. The top elastic member includes a fixed ring 418, a sliding ring 419 and a top spring 420. The fixed ring 418 is fixedly installed on the outside of the rotating shaft 413, the sliding ring 419 is located below the fixed ring 418 and can slide up and down, and the top spring 420 connects the fixed ring 418 and the sliding ring 419. The top spring 420 is a compression spring. The function of the top elastic member is that when the sleeve 42 moves upward to the end, the protrusion 47 enters the top ring groove 49, and when the drive motor 416 drives the sleeve 42 to move downward, the protrusion 47 can enter the spiral groove 48 through the top elastic member.

[0057] The center tube 43 is through from top to bottom, and the upper end is fixed to the bottom of the sleeve 42 and is sealed with the sleeve 42. Four through holes 421 are provided on the side wall of the center tube 43, and the four through holes 421 are evenly distributed along the circumference of the center tube 43, and the through holes 421 penetrate the center tube 43. A bottom spring 422 is fixedly installed at the lower end of the center tube 43, and the bottom spring 422 is a compression spring. The function of the bottom spring 422 is that when the sleeve 42 moves downward to the end, the protrusion 47 enters the bottom annular groove 410, and the bottom spring 422 presses on the mesh support plate 31. When the drive motor 416 drives the sleeve 42 to move upward, the bottom spring 422 can apply an upward elastic force to the sleeve 42, so that the protrusion 47 enters the spiral groove 48.

[0058] There are four stirring collection units corresponding to the four through holes 421. The stirring collection unit includes an upper cross arm 423, a lower cross arm 424, a magnetic frame 425, an annular belt 426, and an annular belt driving assembly. The upper cross arm 423 and the lower cross arm 424 extend radially along the central tube 43. The magnetic frame 425 is fixedly installed between the upper cross arm 423 and the lower cross arm 424. The magnetic frame 425 is a permanent magnet that can absorb metal impurities. The inner end of the magnetic frame 425 extends to the inside of the central tube. The magnetic frame 425 includes a plurality of magnetic blocks 427, and there are intervals between the plurality of magnetic blocks 427. The annular belt 426 is wound around the outside of the magnetic frame 425. The magnetic frame 425 can absorb metal impurities on the annular belt 426. There is an interval between the annular belt 426 and the hole wall of the through hole 421. When the annular belt 426 circulates, the metal impurities can be sent into the central tube 43. Preferably, mesh holes are provided on the annular belt 426, which can allow liquid to pass through but intercept metal impurities. It should be noted that when the metal impurities on the annular belt 426 move between two adjacent magnetic blocks 427, although the magnetism is weak at this time, the metal impurities can still be magnetically attracted because they are small.

[0059] The function of the annular belt driving assembly is to drive the annular belt to circulate, and includes a rotating shaft 429, a first gear 430, a second gear 431, a center rod 432, a support frame 433, and a center gear 434. The rotating shaft 429 is rotatably mounted on the top of the innermost magnetic block 427. Specifically, a bearing can be fixedly mounted on the magnetic block 427, and the rotating shaft 429 is installed through the bearing. The first gear 430 and the second gear 431 are both fixedly mounted on the rotating shaft 429, and the first gear 430 is on the top and the second gear 431 is on the bottom. Specifically, an avoidance groove 428 is opened on the magnetic block 427, and the second gear 431 is located in the avoidance groove 428. The second gear 431 is located on the inner side of the annular belt 426 and meshes with the annular belt 426, thereby driving the annular belt 426 to circulate.

[0060] The upper end of the center rod 432 penetrates the center bottom of the fixed shaft 412, and the center rod 432 and the fixed shaft 412 are mutually stopped, that is, the center rod 432 will not rotate, but the center rod 432 can slide up and down relative to the fixed shaft 412. Specifically, a slider can be provided on the center rod 432, and a slide groove is provided in the fixed shaft 412 to achieve sliding. The center gear 434 is fixedly installed at the bottom of the center rod 432, and the center gear 434 is meshed with each second gear 431. The support frame 433 is fixedly installed on the center rod 432, located above the center gear 434, and the support frame 433 is installed in the sleeve 42. The sleeve 42 can drive the support frame 433 to rise and fall, and the support frame 433 can rotate relative to the sleeve 42. Specifically, a bearing is fixedly installed in the sleeve 42, and the support frame 433 is installed on the bearing. Since the central gear 434 does not rotate and can be raised and lowered together with the sleeve 42, the central gear 434 and the first gear 430 remain in meshing. When the sleeve 42 rotates, the first gear 430 revolves and rotates at the same time, driving the annular belt 426 to perform a circular motion.

[0061] The scraper 45 is fixedly mounted at the bottom of the center rod 432 . The scraper 45 has four scraping edges 435 corresponding to the four annular belts 426 . The scraping edges 435 are located at the corners of the inner ends of the annular belts 426 and can scrape off metal impurities on the annular belts 426 .

[0062] The collecting tube 44 is installed below the central tube 43 to store metal impurities. The collecting tube 44 is threadedly installed at the bottom of the central tube 43.

[0063] The function of the push mechanism 5 is to push out the separated diamonds, and it includes a push cylinder mounting frame 51, a push cylinder 52, and a push plate 53. The push cylinder mounting frame 51 is fixedly mounted on the separation box 1, and there are three push cylinders 52 arranged left and right. The push plate 53 is fixedly mounted on the three push cylinders 52, and the push cylinders 52 push the diamonds in the front-back direction. The push plate 53 corresponds to one of the openings 13 on the separation box 1, and can push the diamonds to the other opening.

[0064] The use process of the present invention is as follows:

[0065] In the initial state, the lifting cylinder 33 pushes the mesh support plate 31 to a high position, and the stirring and collecting mechanism 4 is located above the mesh support plate 31. Diamonds are added to the mesh support plate 31 through the feeding box 12, and then the lifting cylinder 33 drives the mesh support plate 31 to descend rapidly. The diamonds sink to the bottom of the separation box 1 under their own weight. During the sinking process, due to the different volumes of diamonds, the resistance encountered by the diamonds during the sinking process is different, and diamonds of different volumes are layered.

[0066] When the lifting cylinder 33 descends, the driving motor 416 is started, and the driven gears 414 are driven to rotate through the driving gear 417 and the transmission belt 415. The driven gear 414 drives the rotating shaft 413, the spline 413a and the sleeve 42 to rotate. After the sleeve 42 rotates, it rotates and moves downward under the cooperation of the spiral groove 48 and the protrusion 47. At the same time, the central gear 434 and the first gear 430 are meshed to drive the rotating shaft 429 to rotate, and the rotating shaft 429 drives the second gear 431 to rotate, and the second gear 431 drives the annular belt 426 to perform a circular motion.

[0067] The annular belt 426 can rotate with the central tube 43, stirring the liquid in the separation tank 11, making it easier to separate the metal impurities from the diamond. Since the magnetic block 427 is magnetic, the metal impurities can be adsorbed in the annular belt 426 during the rotation with the central tube 43, and then brought into the central tube 43 by the annular belt 426. The scraping edge 435 of the scraper 45 scrapes off the metal impurities on the annular belt 426, and finally makes the metal impurities fall into the collection tube 44. It should be noted that in actual operation, since the through hole 421 connects the inside and outside of the central tube 43, there will be liquid in the central tube 43, but since the central tube 43 is in the center position, the stirring force on the liquid during rotation is small. After the metal impurities enter the central tube 43, they are easy to fall down into the collection tube 44 under their own weight.

[0068] When the sleeve 42 descends to the limit position, the protrusion 47 enters the bottom annular groove 410, and the sleeve 42 only rotates without moving downward. Then the driving motor 416 rotates in the reverse direction, driving the sleeve 42 to rotate in the reverse direction. Under the action of the bottom spring 422, the protrusion 47 enters the spiral groove 48, and the sleeve 42 rotates and moves upward. The lifting cylinder 33 pushes the mesh support plate 31 upward to the initial position.

[0069] When the sleeve 42 moves upward to the extreme position, the protrusion 47 enters the top annular groove 49, so that the sleeve 42 can only rotate but cannot continue to move upward. At this time, the top spring 420 is compressed. In the next working cycle, the top spring 420 pushes the sleeve 42 downward, causing the protrusion 47 to enter the spiral groove.

[0070] When the diamond separation is completed, the lifting cylinder 33 pushes the mesh support plate 31 to the opening 13, and the pushing cylinder 52 pushes the diamonds on the mesh support plate 31 away, and then enters the next separation cycle.

[0071] In other embodiments, an internal thread is provided in the through hole 46 of the horizontal plate 41, and an external thread is provided on the outside of the sleeve 42. The lifting and rotating of the sleeve 42 are achieved by the cooperation of the internal and external threads.

[0072] In other embodiments, the annular belt drive assembly can be implemented in the following manner: a drive shaft is rotatably installed at the inner ends of the upper cross arm 423 and the lower cross arm 424, the annular belt 426 passes around the outside of the drive shaft, and a motor is installed in the central tube 43. The motor drives the drive shaft to rotate, thereby driving the annular belt 426 to circulate.

[0073] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0074] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A separation device for diamonds, comprising a separation box, characterized in that: It also includes a mounting frame fixed on the separation box, the separation box has a separation tank for accommodating liquid; it also includes a supporting separation mechanism and a stirring collection mechanism; The supporting and separating mechanism comprises a mesh supporting plate which is lifted and assembled in the separation tank, and the mesh supporting plate is used to support the diamond and separate from the diamond when descending so that the diamond settles in the separation tank; The stirring and collecting mechanism includes a horizontal plate fixedly mounted on the mounting frame and located above the separation box, a sleeve that penetrates downward through the horizontal plate and is spirally matched with the horizontal plate, and also includes a sleeve driving assembly that drives the sleeve to rotate and move up and down, and also includes a central tube whose upper end is fixedly sealed with the sleeve, and at least two through holes uniformly distributed in the circumferential direction are opened on the side wall of the central tube; the stirring and collecting mechanism also includes a stirring and collecting unit corresponding to the through holes one by one, the stirring and collecting unit includes an upper cross arm, a lower cross arm, and a magnetic frame connected between the upper cross arm and the lower cross arm, which are fixedly mounted on the central tube and extend radially along the central tube, and the inner end of the magnetic frame extends into the through hole, the stirring and collecting unit also includes an annular belt wrapped around the outside of the magnetic frame and an annular belt driving assembly that drives the annular belt to circulate to transport metal impurities into the central tube; the stirring and collecting mechanism also includes a scraper arranged in the central tube, and the scraper is used to scrape the metal impurities on the annular belt into the central tube; the stirring and collecting mechanism includes a collecting cylinder connected to the bottom of the central tube.

2. The separation device for diamond according to claim 1, characterized in that: The sleeve drive assembly includes a fixed shaft and a rotating shaft arranged in sequence from the inside to the outside. The fixed shaft is fixedly mounted on the mounting frame and extends up and down. The rotating shaft is rotatably mounted on the fixed shaft. The sleeve is relatively fixed in the circumferential direction and is relatively slidably mounted on the outside of the rotating shaft in the up and down directions, so that the rotating shaft drives the sleeve to move up and down and rotate. The sleeve drive assembly also includes a driven gear fixedly mounted on the outside of the upper end of the rotating shaft.

3. The separation device for diamond according to claim 2, characterized in that: The sleeve, fixed shaft, rotating shaft, and driven gear are arranged in sequence and spaced apart in a straight line direction. The sleeve drive assembly includes a transmission belt wound around the outside of each driven gear, a driving gear meshing with the transmission belt, and a driving motor driving the driving gear to rotate. The driving motor is arranged on a mounting frame.

4. The separation device for diamond according to claim 2, characterized in that: The endless belt driving assembly includes a rotating shaft installed inside each magnetic frame and rotatably installed around an axis extending up and down, and a first gear and a second gear are fixedly mounted on the rotating shaft in sequence along the up and down directions, and the second gear is meshed with the endless belt to drive the endless belt to move; The annular belt drive assembly also includes a center rod, the upper end of which is slidably installed in the center position of the fixed shaft, and the center rod and the fixed shaft are assembled together to prevent rotation; a center gear that meshes with each first gear is fixed on the center rod; a support frame is also fixedly installed on the outside of the center rod, and the support frame and the sleeve are assembled together so that they are relatively fixed in the up and down directions and relatively rotatable in the circumferential direction, so that the center rod and the center gear can rise and fall with the sleeve.

5. The separation device for diamond according to claim 2, characterized in that: The scraper is fixedly sleeved on the outer part of the lower end of the central rod, and the scraper has scraping edges corresponding to each annular belt one by one.

6. The separation device for diamond according to any one of claims 2 to 5, characterized in that: The outside of the sleeve is provided with a spiral groove, the transverse plate is provided with a through hole for the sleeve to pass through, and the inner wall of the through hole is provided with a protrusion that penetrates into the spiral groove.

7. The separation device for diamonds according to claim 6, characterized in that: The top of the sleeve is provided with a top annular groove connected with the spiral groove, and the rotating shaft is provided with a top elastic member, which is used to apply a downward elastic force to the sleeve when the sleeve moves upward to the upper limit position; The bottom of the sleeve is provided with a bottom annular groove connected with the spiral groove, and the outside of the central tube is sleeved with a bottom spring, which is used to press on the mesh support plate when the sleeve descends to the lower limit position to apply an upward elastic force to the sleeve.

8. The separation device for diamonds according to claim 7, characterized in that: The top elastic member comprises a fixed ring fixed on the rotating shaft, a sliding ring slidably assembled on the rotating shaft up and down, and a top spring connecting the fixed ring and the sliding ring.

9. The separation device for diamond according to any one of claims 1 to 5, characterized in that: The magnetic frame comprises a plurality of magnetic blocks arranged at intervals, and the magnetic blocks are connected between the upper cross arm and the lower cross arm.

10. The separation device for diamond according to any one of claims 1 to 5, characterized in that: The separation device also includes a pushing mechanism, which is used to push the diamonds on the mesh support plate when the mesh support plate rises to the top of the separation tank. The pushing mechanism includes a pushing plate and a pushing cylinder that drives the pushing plate to move horizontally.

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