An on-line detection and sorting device for rare earth metal alloys

Abstract

The present invention discloses an on-line detection and sorting device for rare earth metal alloys, which relates to the technical field of detection and sorting. It includes a conveying member, and above the conveying member, there are a first frame and a second frame. Inside the first frame, there is a first mounting frame, and a pressing roller is rotatably installed inside the first mounting frame; inside the second frame, there is a height detection mechanism, which is used to detect the height of the rare earth alloy ore to be pressed and adjust the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so as to ensure that the pressing force of the pressing detection mechanism on rare earth alloy ores of different heights remains the same; at the rear side of the conveying member, there is a screening mechanism, which is used to separate the crushed rare earth alloy ores from the intact rare earth alloy ores; the present invention can ensure that the pressing detection mechanism applies the same pressing force to rare earth alloy ores of each different height.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and sorting, and in particular to an online detection and sorting device for rare earth metal alloys. Background Art

[0002] In the process of mining rare earth alloy ores such as monazite and bastnaesite, the mined ore needs to be crushed into blocks first, and then the block ore is collected and transported to the sorting unit for sorting.

[0003] After the rare earth alloy ore is mined, it needs to be further sorted. During the sorting, the rare earth alloy ore is usually preliminarily screened with a color sorter to remove the obvious non-ferrous metal blocks contained in the rare earth alloy ore, and then the remaining rare earth alloy ore is further tested and sorted; hardness testing can directly reflect the main component content of the rare earth alloy ore, and is usually an important part of the detection and classification of rare earth alloy ore; and the existing hardness test is usually to test the hardness of the rare earth alloy ore by directly pressing the rare earth alloy ore with a pressure plate; during the test, due to the differences in height and size of different rare earth alloy ores, and the transportation of the ore is basically continuous transportation by a conveying device, the traditional pressure means of hardness testing is difficult to match this continuous transportation method. Summary of the invention

[0004] The object of the present invention is to provide an online detection and sorting device for rare earth metal alloys to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an online detection and sorting device for rare earth metal alloys, comprising a conveying member, a frame body 1 and a frame body 2 are arranged above the conveying member, a first mounting frame is arranged in the frame body 1, and a pressing roller is rotatably installed in the first mounting frame;

[0006] A pressing detection mechanism is provided in the frame body 1, and the pressing detection mechanism is used to detect the hardness of the rare earth alloy ore by driving the pressing roller to elastically press the rare earth alloy ore on the conveying member;

[0007] A height detection mechanism is provided in the frame body 2, and the height detection mechanism is used to detect the height of the rare earth alloy ore to be pressed and adjust the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so that the pressing force of the pressing detection mechanism on the rare earth alloy ores of different heights remains the same;

[0008] A screening mechanism is provided at the rear side of the conveying member, and the screening mechanism is used to separate the crushed rare earth alloy ore from the intact rare earth alloy ore.

[0009] Preferably, the pressing detection mechanism includes a first fixing block located inside the first frame; first sliding rods are symmetrically and fixedly connected to the left and right sides inside the first frame, and both of the first sliding rods are slidably connected to the first fixing block; the first mounting frame is located directly below the first fixing block, and three second sliding rods are fixedly connected to the first mounting frame, and all of the three second sliding rods are slidably connected to the first fixing block; an elastic member I is sleeved on the second sliding rod at the middle position, and the upper and lower ends of the elastic member I are respectively fixedly connected to the first fixing block and the first mounting frame.

[0010] Preferably, the height detection mechanism includes a first fixing frame fixedly connected to the second frame; a second mounting frame is provided at the bottom of the first fixing frame, and the second mounting frame is slidably connected to the first fixing frame; a detection roller is rotatably mounted inside the second mounting frame, the detection roller has the same size as the pressing roller and both are in contact with the conveying member; the detection roller is made of lightweight hard plastic; a limiting mechanism is provided on the first fixing frame, and the limiting mechanism is used to limit the upward movement of the first fixing block; an adjusting mechanism is provided on the first fixing frame, and the adjusting mechanism is used to adjust the upper limit position of the limiting mechanism according to the degree of upward movement of the second mounting frame when the second mounting frame moves upward.

[0011] Preferably, the limiting mechanism includes a limiting frame, first ratchets are symmetrically and rotatably connected to the left and right sides of the limiting frame, a threaded rod is fixedly connected to the upper end of the first ratchet, the upper end of the threaded rod penetrates through the first fixing frame and the threaded rod is threadedly connected to the first fixing frame; a limiting plate is provided at the bottom of the limiting frame, the limiting plate is in contact with the limiting frame and the limiting plate is fixedly connected to the first fixing block.

[0012] Preferably, the adjusting mechanism includes a gear and a rack, the rack is fixedly connected to the first fixing frame and the gear is rotatably connected to the limiting frame, and the rack is meshed with the gear; a self-locking mechanism is provided on the gear, and the self-locking mechanism is used to unidirectionally lock the gear so that the gear cannot move upward relative to the rack; an unlocking mechanism is provided on the second mounting frame, and the unlocking mechanism is used to unlock the unidirectionally locked gear when the second mounting frame moves upward.

[0013] Preferably, the self-locking mechanism includes two second ratchets symmetrically distributed on the left and right sides of the gear and both of the second ratchets are coaxially and fixedly connected to the gear; a second fixing frame is provided at the outer end of the second ratchet, and the second fixing frame is fixedly connected to the limiting frame; four second pawls are provided on the second fixing frame, and all of the four second pawls are meshed with the second ratchet; a first slider is fixedly connected to the second pawl, the first slider is slidably connected to the second fixing frame and an elastic member II is fixedly connected to the first slider, and the other end of the elastic member II is fixedly connected to the second fixing frame.

[0014] Preferably, the unlocking mechanism includes two second fixing blocks which are respectively located on the left and right sides of the second fixing frames on the left and right; four first connecting rods are rotatably connected to the second fixing blocks, and the other ends of the four first connecting rods are respectively rotatably connected to four first sliders; a connecting rod is arranged at the outer side position of the second fixing block, the connecting rod is fixedly connected to the limiting frame and is slidably connected to the first fixing frame; a push rod is arranged at the bottom position of the connecting rod, and the push rod is fixedly connected to the second mounting frame; a pushing block is arranged between the push rod and the connecting rod, and the pushing block is fixedly connected to the second fixing block.

[0015] Preferably, the threaded rod does not have self-locking property; a third sliding rod is arranged between the two first ratchets on the limiting frame, the third sliding rod penetrates through the limiting frame and is slidably connected to the limiting frame; second connecting rods are symmetrically and rotatably connected to the left and right sides of the upper end of the third sliding rod, a first pawl is rotatably connected to one end of the second connecting rod close to the first ratchet, and the first pawl is engaged with the first ratchet; the first pawl is slidably connected to the limiting frame and a third spring is sleeved on the first pawl, one end of the third spring is fixedly connected to the first pawl and the other end is fixedly connected to the limiting frame.

[0016] Preferably, the screening mechanism includes a screen which is located at the rear end of the conveying member and is fixedly connected to the guardrails at both ends of the conveying member; the screen is in an inclined shape with the front end higher than the rear end.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In this application, the detection execution member is set as a pressing roller. On the one hand, it can perform continuous detection matching the conveyor belt and cooperate with the screening mechanism to sort out the ores with lower hardness; at the same time, when the pressing roller performs detection, its ideal contact with the ore is line contact. Different from the detection of the plate-shaped execution member, the actual contact area between the pressing roller and the ore is smaller, and the required crushing force is also smaller, that is, the overall strength requirement for the device is lower.

[0019] This application utilizes the cooperation of the self-locking mechanism and the unlocking mechanism in the height detection mechanism to realize the self-locking action initiated by the detection roller and realize the unlocking action marked by the end of the detection of the pressing roller; at the same time, the self-locking mechanism has a holding function to make up for the time difference between the detection roller and the pressing roller contacting the ore, so as to ensure the coincidence degree of the height detection and the hardness detection, and enable this application to maintain the balance of detection on the ore conveying line with height differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic rear view structure diagram of the present invention;

[0022] Figure 3 is a schematic diagram of the disassembly structure of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the height detection mechanism in the present invention;

[0024] Figure 5 is a schematic diagram of the disassembly structure of the height detection mechanism in the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the self-locking mechanism in the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the limit frame in the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the pressing detection mechanism in the present invention;

[0028] Figure 9 is a schematic diagram of the process of detecting ore in the present invention.

[0029] In the attached drawings, the components represented by each reference numeral are as follows:

[0030] 1. Conveyor; 2. First frame; 3. Second frame; 4. First mounting frame; 5. Pressing roller; 6. First fixing block; 7. First sliding rod; 8. Second sliding rod; 9. First elastic member; 10. First fixing frame; 11. Second mounting frame; 12. Detection roller; 13. Limit frame; 14. First ratchet; 15. Threaded rod; 16. Limit plate; 17. Gear; 18. Rack; 19. Second ratchet; 20. Second fixing frame; 21. Second pawl; 22. First slider; 23. Second elastic member; 24. Second fixing block; 25. First connecting rod; 26. Connecting rod; 27. Push rod; 28. Push block; 29. Third sliding rod; 30. Second connecting rod; 31. First pawl; 32. Third spring; 33. Sieve mesh. Detailed implementation manners

[0031] Please refer to Figures 1 - 9 , the present invention provides a technical solution: a rare earth metal alloy on-line detection and sorting device, including a conveyor 1, a first frame 2 and a second frame 3 are arranged above the conveyor 1, a first mounting frame 4 is arranged in the first frame 2, and a pressing roller 5 is rotatably installed in the first mounting frame 4;

[0032] A pressing detection mechanism is arranged in the first frame 2, and the pressing detection mechanism is used to elastically press the rare earth alloy ore mixture on the conveyor 1 by driving the pressing roller 5 so as to break a part of the mixture;

[0033] The press detection mechanism includes first slide bars 7 symmetrically fixedly distributed on both sides of the frame body 2; a first fixing block 6 is slidably provided at the lower ends of the two first slide bars 7, and the first fixing block 6 can be locked with the first slide bars 7; a first mounting frame 4 is elastically slidably provided at the lower side of the first fixing block 6 (the elastic sliding pair at this position is composed of an elastic member 9 and a plurality of second slide bars 8, wherein the upper and lower ends of the elastic member 9 are fixedly connected to the first fixing block 6 and the first mounting frame 4 respectively);

[0034] A height detection mechanism is provided in the frame 2 3, and the height detection mechanism adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore to be pressed, so that the pressing detection mechanism can maintain the same pressing force for rare earth alloy ores of different heights;

[0035] A screening mechanism is provided at the rear side of the conveyor 1, and the screening mechanism is used to separate the crushed rare earth alloy ore from the intact rare earth alloy ore;

[0036] The mined rare earth alloy raw materials need to be crushed into fragments of the same specifications by a crusher. In fact, the smaller the crushing specifications, the smaller the force area of ​​a single raw material during testing, and the easier it is to crush. Taking monazite as an example, its Mohs hardness is 5-5.5; when it is crushed to less than 2cm square, its force area is usually less than 10mm², and the crushing force is between 200-500N; the main components of the same batch of ore are similar, the difference is that due to the different locations of the ore in the vein, the main components will be quite different, and there will also be large differences in hardness, and different processes will be required to extract the rare earth elements inside it.

[0037] The rare earth alloy ore that has been detected by chromatography is evenly spread on the conveyor 1, and then the conveyor 1 is started, and the conveyor 1 transports the rare earth alloy ore backward; when the rare earth alloy ore moves to the position of the height detection mechanism, the height of the rare earth alloy ore at this position can be detected by starting the height detection mechanism, and the height detection mechanism adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore, so that the pressing detection mechanism can always maintain a certain height from the detected rare earth metal alloy, and further ensure that the pressing detection mechanism applies the same pressing force to each rare earth alloy ore of different heights;

[0038] After the height detection is completed, the conveyor 1 continues to drive the rare earth alloy ore to move backward. When the rare earth alloy ore moves to the position of the pressing detection mechanism, the pressing detection mechanism performs elastic pressing detection on the rare earth alloy ore, and the rare earth alloy ore with poor hardness will be crushed. Then, as the conveyor 1 is transported to the position of the screening mechanism, the screening mechanism is started to collect the crushed rare earth alloy ore.

[0039] The detection process is as follows: when the conveying member 1 drives the rare earth alloy ore to move to the position of the pressing roller 5, the rare earth alloy ore will lift the pressing roller 5. At this time, the pressing roller 5 will drive the first mounting bracket 4 to move upward, and further squeeze the first elastic member 9 in a pre-tightened state. Under the action of the first elastic member 9, the pressing roller 5 will complete the pressing of the rare earth alloy ore and crush the ore with lower hardness. It should be noted that when the roughness of the ore is large, the pressing roller can be driven to rotate by the ore; if the roughness of the ore is small, a driving member can be added to the pressing roller 5 to drive the pressing roller 5 to rotate to adapt to the conveying speed of the conveying member.

[0040] In this application, the detection execution member is set as the pressing roller 5. On the one hand, it can perform continuous detection in cooperation with the conveyor belt and sort out the ore with lower hardness in cooperation with the screening mechanism. At the same time, when the pressing roller 5 is detecting, its ideal contact with the ore is line contact. Different from the detection of the plate-shaped execution member, the actual contact area between the pressing roller 5 and the ore is smaller, and the required crushing force is also smaller, that is, the overall strength requirement for the device is lower.

[0041] As a further solution of the present invention, the height detection mechanism includes a first fixing bracket 10 fixedly arranged on the second frame 3; a second mounting bracket 11 is slidably arranged at the bottom of the first fixing bracket 10; a detection roller 12 is rotatably installed in the second mounting bracket 11. The detection roller 12 has the same size as the pressing roller 5 and can be attached to the conveying member 1; the detection roller 12 can be made of a light material such as engineering plastic; a limiting mechanism is arranged on the first fixing bracket 10, and the limiting mechanism is used to limit the upward movement of the first fixing block 6; an adjusting mechanism is arranged on the first fixing bracket 10, and the adjusting mechanism is used to adjust the position of the limiting mechanism according to the distance that the second mounting bracket 11 moves upward when the second mounting bracket 11 moves upward;

[0042] See Figures 3 - 4 , because the shapes of the crushed ores are uneven and there is a partial stacking phenomenon on the conveyor belt, the heights of the ores during the actual pressing process of the pressing roller 5 are not balanced. Under the action of the first elastic member 9, the ore with a higher height will lift the pressing roller 5 to a higher height, and the first elastic member 9 will contract to a greater extent. When the stiffness coefficient of the first elastic member 9 is large, a large pressure difference will be generated due to the height difference of the ores, thus affecting the detection result;

[0043] In order to make the pressing roller 5 apply a similar pressing force to all ores, when the conveying member 1 conveys the ore to the position in front of the pressing roller 5, the ore first contacts and lifts the detection roller 12 to cross over the detection roller 12; during this process, the ore lifts the detection roller 12 and drives the second mounting bracket 11 to move upward through the detection roller 12. The position of the limiting mechanism can be adjusted according to the height of the upward movement of the second mounting bracket 11 through the adjustment mechanism, and by adjusting the position of the limiting mechanism, the maximum position of the upward movement of the first fixing block 6 can be restricted.

[0044] When the ore lifts the pressing roller 5 to the highest position, the first fixing block 6 is also at the highest position and the first fixing block 6 cannot continue to move upward. Therefore, at this time, the pressing roller 5 will start to apply pressure to the ore; when the ore crosses over the pressing roller 5, the first elastic member 9 will maintain a specific degree of contraction, so as to ensure that the pressing roller 5 applies a similar pressing force to the ores in the continuous conveying state.

[0045] As a further aspect of the present invention, the limiting mechanism includes a limiting frame 13. Symmetrically rotatably connected to the left and right sides of the limiting frame 13 are first ratchets 14. The upper ends of the first ratchets 14 are fixedly connected to threaded rods 15 that penetrate through the first fixing frame 10, and the threaded rods 15 are threadedly connected to the first fixing frame 10; a limiting plate 16 is installed at the bottom position of the limiting frame 13, and the limiting plate 16 is in contact with the limiting frame 13.

[0046] See Figures 3 - 4 , when the limiting frame 13 is in a fixed state relative to the first fixing frame 10, the limiting frame 13 will thus press against the limiting plate 16, causing the first fixing block 6 to be unable to continue moving upward.

[0047] As a further aspect of the present invention, the adjustment mechanism includes a gear 17 and a rack 18. The rack 18 is fixedly connected to the first fixing frame 10 and the gear 17 is rotatably connected to the limiting frame 13, and the rack 18 meshes with the gear 17; a self-locking mechanism is provided on the gear 17, and the self-locking mechanism is used to unidirectionally lock the gear 17 so that the gear 17 cannot move upward relative to the rack 18; an unlocking mechanism is provided on the second mounting bracket 11, and the unlocking mechanism is used to unlock the unidirectionally locked gear 17 when the second mounting bracket 11 moves upward.

[0048] See Figures 4 - 5When the ore contacts and lifts the detection roller 12, when the detection roller 12 drives the second mounting bracket 11 to move upward, the unlocking mechanism will first unlock the gear 17, enabling the gear 17 to move upward relative to the rack 18. At this time, the second mounting bracket 11 can drive the limiting frame 13 to move upward; when the ore passes over the detection roller 12, the second mounting bracket 11 driven by the detection roller 12 drops downward naturally. At this time, the self-locking mechanism will lock the gear 17 again, and the gear 17 cannot move upward relative to the rack 18. Therefore, the limiting frame 13 limits the maximum height of the first fixing block 6.

[0049] As a further solution of the present invention, the self-locking mechanism includes two second ratchets 19, and the two second ratchets 19 are symmetrically fixedly connected to the rotating shafts at both ends of the gear 17; a second fixing bracket 20 is fixedly connected to the limiting frame 13 at a position outside the second ratchet 19; four first sliders 22 are slidably connected to the second fixing bracket 20, and a second pawl 21 is fixedly connected to the first slider 22, and the four second pawls 21 are all engaged with the second ratchet 19 on the same side thereof; an elastic member two 23 is fixedly connected to the first slider 22, and the other end of the elastic member two 23 is fixedly connected to the second fixing bracket 20;

[0050] See Figures 4 - 5 , when the gear 17 moves upward relative to the rack 18, the unlocking mechanism will first release the locking of the four second pawls 21 on the second ratchet 19, and the second ratchet 19 can rotate normally. At this time, the gear 17 will start to rotate under the action of the rack 18, and the two second ratchets 19 connected thereto will rotate when the gear 17 rotates; when the second mounting bracket 11 drives the limiting frame 13 to move to a high position, the second mounting bracket 11 will then drop downward, the unlocking mechanism is withdrawn, and the four second pawls 21 lock the second ratchet 19 again. Therefore, the second ratchet 19 cannot support the gear 17 to continue moving upward relative to the rack 18, and the limiting frame 13 reaches the maximum height, that is, the height of the limiting frame 13 is reliably locked.

[0051] In this application, the self-locking mechanism realizes the unidirectional conversion of the height increase of the detection roller 12 into the height increase of the limiting frame 13, that is, when the limiting frame 13 moves upward, it can only be driven by the detection roller 12, so as to realize the reliable locking of the limiting frame 13, and further enable the limiting frame 13 to reliably limit the pressing roller 5.

[0052] As a further solution of the present invention, the unlocking mechanism includes two second fixing blocks 24, which are respectively located on the left and right sides of the second fixing frames 20 on the left and right sides; four first connecting rods 25 are rotatably connected to the second fixing blocks 24, and the other ends of the four first connecting rods 25 are respectively rotatably connected to the four first sliding blocks 22; a connecting rod 26 is fixedly connected to the outside of the second fixing block 24 at the position of the limiting frame 13, and the connecting rod 26 is slidably connected to the first fixing frame 10; a push rod 27 is provided at the bottom position of the connecting rod 26, and the push rod 27 is fixedly connected to the second mounting frame 11; a push block 28 is provided between the push rod 27 and the connecting rod 26, and the push block 28 is fixedly connected to the second fixing block 24;

[0053] See Figures 4 - 6 , when the second mounting frame 11 moves upward, it will drive the two push rods 27 connected thereto to move upward; when the push rod 27 moves upward, it will first push the push block 28 inward, the push block 28 will drive the second fixing block 24 to move inward, and when the second fixing block 24 moves, it will respectively push the four first sliding blocks 22 to slide through the four first connecting rods 25, and the first sliding block 22 drives the second pawl 21 to move so that the second pawl 21 is disengaged from the second ratchet wheel 19. At this time, both the second ratchet wheel 19 and the gear 17 can rotate freely.

[0054] As a further solution of the present invention, the threaded rod 15 does not have self-locking property; a third sliding rod 29 penetrating through the limiting frame 13 is provided at the position between the two first ratchet wheels 14 on the limiting frame 13, and the third sliding rod 29 is slidably connected to the limiting frame 13; second connecting rods 30 are symmetrically rotatably connected to the upper left and right sides of the upper end of the third sliding rod 29, a first pawl 31 is rotatably connected to one end of the second connecting rod 30 close to the first ratchet wheel 14, and the first pawl 31 meshes with the first ratchet wheel 14; the first pawl 31 is slidably connected to the limiting frame 13 and a third spring 32 is sleeved on the first pawl 31, one end of the third spring 32 is fixedly connected to the first pawl 31 and the other end is fixedly connected to the limiting frame 13;

[0055] See Figure 5 , Figure 7 , when the detection roller 12 is pushed to the highest position by the rare earth alloy ore, the limiting frame 13 moves to the highest position. After the rare earth alloy ore passes over the detection roller 12, the detection roller 12 will automatically drop downward. At this time, under the action of the first pawl 31, the first ratchet wheel 14 and the threaded rod 15 cannot rotate reversely, so the limiting frame 13 will not move downward; since the limiting plate 16 will push the push rod 27 upward when it fits with the limiting frame 13, when the push rod 27 moves upward, it will drive the first pawl 31 to disengage from the first ratchet wheel 14 through the second connecting rod 30, and the threaded rod 15 can rotate freely; when the rare earth alloy ore passes over the pressing roller 5, the first fixing block 6, the limiting plate 16 and the limiting frame 13 will automatically reset downward.

[0056] See Figure 9 , this application utilizes the cooperation of the self-locking mechanism and the unlocking mechanism in the height detection mechanism to achieve the self-locking action initiated by the detection roller 12, and takes the end of the pressing roller 5 detection as a sign to achieve the unlocking action (that is, the detection roller 12 drives the limit frame 13 to rise, and the pressing roller 5 drives the limit frame 13 to fall); at the same time, the self-locking mechanism has the function of maintaining to make up for the time difference between the detection roller 12 and the pressing roller 5 contacting the ore, so as to ensure the matching degree of height detection and hardness detection, enabling this application to maintain the balance of detection on the ore conveyor line with different heights; secondly, since the forces on the detection roller 12 and the pressing roller 5 in this application are quite different (the force on the pressing roller 5 is mainly for the purpose of meeting the detected hardness, and its force is usually between 200 - 1500 N; while the force on the detection roller 12 is mainly reflected in its attached characteristic self-weight and the friction between characteristics, and its force usually does not exceed 120 N), the detection roller can more sensitively and quickly detect the height of the ore and feedback the height to the pressing detection mechanism.

[0057] As Figures 2 - 3 shown, as a further solution of the present invention, the screening mechanism includes a sieve mesh 33, the sieve mesh 33 is located at the rear end of the conveying member 1 and the sieve mesh 33 is fixedly connected to the guardrails at both ends of the conveying member 1; the sieve mesh 33 is in an inclined shape with the front end higher than the rear end;

[0058] When the alloy content in the ore is small, the hardness and strength of the ore are both poor, and it will be directly crushed into multiple small pieces after being pressed by the pressing roller 5. Therefore, it is necessary to sort out the ore crushed into multiple small pieces from this batch of ore.

[0059] When the crushed rare earth metal alloy is transported onto the sieve mesh 33, the crushed rare earth alloy ore will fall through the sieve holes of the sieve mesh 33, while the complete rare earth alloy ore will stay on the sieve mesh 33 and then slide down along the sieve mesh 33 to be collected.

Claims

1. An on-line detection and sorting device for rare earth metal alloys, comprising a conveying member (1), characterized in that: Above the conveying member (1), there are a first frame (2) and a second frame (3). Inside the first frame (2), there is a first mounting frame (4), and a pressing roller (5) is rotatably mounted inside the first mounting frame (4). Inside the first frame (2), there is a pressing detection mechanism, which is used to detect the hardness of rare earth alloy ore by driving the pressing roller (5) to elastically press the rare earth alloy ore on the conveying member (1). The pressing detection mechanism includes two first sliding rods (7) fixedly connected to both sides of the first frame (2). The lower ends of the two first sliding rods (7) are jointly slidably connected to a first fixing block (6). The first mounting frame (4) is elastically slidably arranged on the lower side of the first fixing block (6). At the rear side of the conveying member (1), there is a screening mechanism, which is used to sort out the crushed rare earth alloy ore from the mixture. Inside the second frame (3), there is a height detection mechanism. The height detection mechanism adjusts the height of the pressing detection mechanism according to the height of the rare earth alloy ore to be pressed, so that the pressing detection mechanism can maintain the same pressing force on rare earth alloy ores of different heights. The height detection mechanism includes a first fixing frame (10), which is fixedly connected to the second frame (3). A second mounting frame (11) is slidably arranged at the bottom of the first fixing frame (10). A detection roller (12) is rotatably mounted inside the second mounting frame (11). The detection roller (12) has the same size as the pressing roller (5) and is in contact with the conveying member (1). A limiting mechanism is arranged on the first fixing frame (10), which is used to limit the upward movement of the first fixing block (6). An adjusting mechanism is arranged on the first fixing frame (10), which is used to adjust the upper limit position of the limiting mechanism according to the degree of upward movement of the second mounting frame (11) when the second mounting frame (11) moves upward.

2. The on-line detection and sorting device for rare earth metal alloy according to claim 1, characterized in that: The limiting mechanism includes a limiting frame (13). On the left and right sides of the limiting frame (13), there are symmetrically rotatably connected first ratchets (14). The upper ends of the first ratchets (14) are fixedly connected to threaded rods (15) passing through the first fixing frame (10). The threaded rods (15) are threadedly connected to the first fixing frame (10). A limiting plate (16) is arranged at the bottom of the limiting frame (13), and the limiting plate (16) is in contact with the limiting frame (13).

3. The on-line detection and sorting device for rare earth metal alloy according to claim 2, characterized in that: The adjusting mechanism includes a gear (17) and a rack (18). The rack (18) is fixedly connected to the first fixing frame (10), and the gear (17) is rotatably connected to the limiting frame (13). The rack (18) is meshed with the gear (17). A self-locking mechanism is arranged on the gear (17), which is used to unidirectionally lock the gear (17) so that the gear (17) cannot move upward relative to the rack (18). An unlocking mechanism is arranged on the second mounting frame (11), which is used to unlock the unidirectionally locked gear (17) when the second mounting frame (11) moves upward.

4. The on-line detection and sorting device for rare earth metal alloy according to claim 3, wherein: The self-locking mechanism includes two second ratchets (19), and the two second ratchets (19) are symmetrically and fixedly connected to the rotating shafts at both ends of the gear (17); a second fixing frame (20) is fixedly connected to the position on the limiting frame (13) outside the second ratchet (19); four first sliders (22) are slidably connected to the second fixing frame (20), a second pawl (21) is fixedly connected to the first slider (22), and the four second pawls (21) are all engaged with the second ratchet (19) on the same side thereof; an elastic member II (23) is fixedly connected to the first slider (22), and the other end of the elastic member II (23) is fixedly connected to the second fixing frame (20).

5. The on-line detection and sorting device for rare earth metal alloy according to claim 4, characterized in that: The unlocking mechanism includes two second fixing blocks (24), and the two second fixing blocks (24) are respectively located on the left and right sides of the second fixing frames (20) on the left and right; four first connecting rods (25) are rotatably connected to the second fixing blocks (24), and the other ends of the four first connecting rods (25) are respectively rotatably connected to the four first sliders (22); a connecting rod (26) is fixedly connected to the position on the limiting frame (13) outside the second fixing block (24), and the connecting rod (26) is slidably connected to the first fixing frame (10); a push rod (27) is provided at the bottom of the connecting rod (26), and the push rod (27) is fixedly connected to the second mounting frame (11); a push block (28) is provided between the push rod (27) and the connecting rod (26), and the push block (28) is fixedly connected to the second fixing block (24).

6. The on-line detection and sorting device for rare earth metal alloy according to claim 5, characterized in that: The threaded rod (15) does not have self-locking property; a third sliding rod (29) penetrating through the limiting frame (13) is provided at the position between the two first ratchets (14) on the limiting frame (13), and the third sliding rod (29) is slidably connected to the limiting frame (13); second connecting rods (30) are symmetrically and rotatably connected to the left and right sides at the upper end of the third sliding rod (29), a first pawl (31) is rotatably connected to one end of the second connecting rod (30) close to the first ratchet (14), and the first pawl (31) is engaged with the first ratchet (14); the first pawl (31) is slidably connected to the limiting frame (13), and a third spring (32) is sleeved on the first pawl (31), one end of the third spring (32) is fixedly connected to the first pawl (31), and the other end is fixedly connected to the limiting frame (13).

7. The on-line detection and sorting device for rare earth metal alloy according to claim 1, characterized in that: The screening mechanism includes a screen (33), the screen (33) is located at the rear end of the conveying member (1), and the screen (33) is fixedly connected to the guardrails at both ends of the conveying member (1); the screen (33) is in an inclined shape with the front end higher than the rear end.

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