Automatic mining machine sorting device controlled by PLC (Programmable Logic Controller)

Abstract

The invention discloses a PLC-controlled mining machine automatic sorting device, and relates to the technical field of processing equipment, the PLC-controlled mining machine automatic sorting device comprises a device base, a vibration sorting device is arranged in one side of the device base, an anti-blocking structure is arranged on the outer wall of one side of the device base, and a screening structure is arranged on the lower side, close to the anti-blocking structure, of the device base; a feeding and discharging structure is arranged on the upper portion of the device base. According to the automatic sorting device of the mining machine, the vibration sorting device is driven by the first servo motor, ore is accurately screened, stable operation is guaranteed through a buffer structure, a second servo motor starts an anti-blocking structure, a high-pressure spray head rapidly dredges blocking, a third servo motor drives a screening structure, ore classified collection is achieved, all the structures work cooperatively under the control of a PLC, and the working efficiency is improved. The ore sorting efficiency and quality are comprehensively improved, it is ensured that the device operates efficiently and stably, and ore which cannot be sorted can be taken out, reprocessed and then sorted again.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, and particularly relates to a PLC-controlled automatic sorting device for mining machines. Background Art

[0002] The automatic sorting device for mining machines is an advanced device applied in the field of mine exploitation for efficiently classifying and screening ores. It integrates technologies in multiple fields such as machinery, electronics, and automation control. Through a series of complex mechanical structures, such as conveyor belts, sorting arms, vibrating screens, etc., combined with advanced sensor technologies, it can quickly identify ores of different types and specifications and accurately sort them to corresponding positions. Its core advantages lie in significantly improving the sorting efficiency, reducing the labor intensity of workers, lowering the labor cost, while ensuring the accuracy and consistency of sorting, facilitating the more large-scale and efficient mine production, and promoting the development of the entire mining industry.

[0003] When the existing automatic sorting device for mining machines sorts ores, it is prone to jamming problems. On the one hand, the shapes of ores are often irregular, and some sharp or long-strip-shaped ores are likely to get stuck in the gaps of conveyor belts, joints of sorting mechanisms, etc. For example, in the vibrating screen link, if the size distribution range of ores is too large, large-particle ores may block the screen holes, resulting in reduced screening efficiency and material accumulation and blockage. On the other hand, some ores are sticky, and in a humid environment, the stickiness increases, and they will adhere to the inner wall and conveyor belt of the device, affecting the normal transportation of materials and gradually accumulating to form blockages. In addition, when the ore production volume is large and the sorting device operates at a high load for a long time, the wear of mechanical components is aggravated, which may cause the gaps between components to become larger, making it easy for materials to enter areas where they should not enter, thereby triggering blockages, seriously affecting the continuous operation and production efficiency of the equipment, and bringing certain adverse effects to the usage process. To solve the deficiencies of the existing technology, we propose a PLC-controlled automatic sorting device for mining machines. Summary of the Invention

[0004] The main purpose of the present invention is to provide a PLC-controlled automatic sorting device for mining machines, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A PLC-controlled automatic sorting device for mining machines includes a device base. Inside one side of the device base, there is a vibration sorting device. On the outer wall of one side of the device base, there is an anti-blocking structure. Below the device base near the anti-blocking structure, there is a screening structure. Above the device base, there is a feeding and discharging structure;

[0007] The vibration sorting device includes a support side plate horizontally placed on one side of the device base. A first limit groove is provided in the middle of the upper side of the support side plate. A first limit slider is slidably installed in the first limit groove. A first servo motor is fixedly installed on the outer wall of one side of the first limit slider. A first synchronous pulley is detachably installed at the rotor of the first servo motor. An inner groove is provided inside the device base. A positioning base is fixedly installed inside the inner groove. A first sliding groove is provided in the middle of the positioning base. A first rotating rod is rotatably installed on the inner wall of one side of the first sliding groove. A second synchronous pulley is fixedly installed at one end of the first rotating rod. A first rotating disk is fixedly installed at the end of the first rotating rod away from the second synchronous pulley. A first movable ejector rod is rotatably installed on the side of the first rotating disk away from the center of the first sliding groove. A limit block is slidably installed on the upper side of the first sliding groove. A second sliding groove is provided inside the limit block. A wave frame is fixedly installed at the end of the limit block away from the positioning base. Second limit grooves are provided on the upper parts of both sides of the wave frame. Second limit sliders are slidably installed inside the two second limit grooves. A cam rod is rotatably installed on the opposite sides of the two second limit sliders. A sieve frame is provided on the outer wall of the cam rod.

[0008] Preferably, first buffer telescopic rods are detachably installed on the upper and lower sides of the first limit slider. First buffer springs are provided on the outer walls of the two first buffer telescopic rods. A second rotating disk is rotatably installed on the side of the first movable ejector rod away from the first rotating disk. A sliding frame is rotatably installed at the upper end of the first movable ejector rod. The upper part of the sliding frame slides inside the second sliding groove. A second buffer spring is detachably installed on the upper side of the sliding frame. The lower end of the second buffer spring is detachably installed on the inner wall of the second sliding groove. A second movable ejector rod is slidably installed at the center of the sliding frame. Auxiliary support rods are fixedly installed on both sides of the positioning base. Third buffer springs are detachably installed inside the auxiliary support rods. Second buffer telescopic rods are detachably installed on the upper and lower sides of the two second limit sliders. Fourth buffer springs are provided on the outer walls of each group of second buffer telescopic rods. A third limit groove is provided on the side of the wave frame close to the second limit groove. A third buffer telescopic rod is detachably installed on the inner wall of the third limit groove. A fifth buffer spring is provided on the outer wall of the third buffer telescopic rod. A third synchronous pulley is slidably installed on the inner wall of the third limit groove away from the third buffer telescopic rod.

[0009] Preferably, the two ends of the first buffer spring are detachably mounted on the side wall of the first limit slider and the inner wall of the first limit groove, respectively, the two ends of the fourth buffer spring are detachably mounted on the side wall of the second limit slider and the inner wall of the second limit groove, respectively, the first synchronous wheel, the second synchronous wheel and the third synchronous wheel are all connected by a transmission belt, a weight block is provided on the middle side wall of the cam rod, one end of the cam rod passes through the second limit slider and the axis of the first synchronous wheel and is detachably mounted, a plurality of sorting slots are equidistantly provided on the outer wall of the screening frame, and the positioning base is in a mountain shape.

[0010] Preferably, the anti-blocking structure includes a second servo motor installed in the middle of one side of the device base, a cam frame is detachably installed at the rotor of the second servo motor, a first connecting rod is rotatably installed at one end of the cam frame away from the second servo motor, a second connecting rod is rotatably installed at one end of the first connecting rod away from the cam frame, two first positioning seats are fixedly installed on the upper part of one side of the device base, a second rotating rod is rotatably installed on the opposite side of the two first positioning seats, a third connecting rod is fixedly installed at both ends of the second rotating rod close to the first positioning seat, a deflection frame is rotatably installed at one end of the two third connecting rods away from the second rotating rod, and a fourth limiting frame is opened inside the two deflection frames. Positioning slot, one end of the two deflection frames is fixedly installed with an alignment plate, and a number of high-pressure nozzles are fixedly installed equidistantly inside the alignment plate, two second positioning seats are fixedly installed on the upper part of the side of the device base close to the first positioning seat, and second sliders are rotatably installed on the upper parts of the opposite sides of the two second positioning seats, and a placement base plate is fixedly installed on the lower parts of the opposite sides of the two second positioning seats, and a high-pressure air collecting pump is fixedly installed on the middle part of one side of the placement base plate, and the air outlet of the high-pressure air collecting pump is connected to the first ventilation pipe, and three second ventilation pipes are fixedly installed equidistantly on the outer wall of the first ventilation pipe, and a number of movable hoses are fixedly installed equidistantly on the three second ventilation pipes close to the side of the alignment plate.

[0011] Preferably, the second slider slides in the fourth limiting groove, the end of the movable hose away from the second ventilation pipe is detachably mounted on the high-pressure nozzle, the number of the high-pressure nozzles and the movable hoses corresponds to each other, both ends of the second rotating rod pass through the first positioning seat and are fixedly mounted on the end of the second connecting rod away from the first connecting rod, and the high-pressure nozzle corresponds to the sorting groove on the outer wall of the screening frame.

[0012] Preferably, the screening structure includes a third servo motor fixedly mounted on the lower part of one side of the device base, a third rotating disk is detachably mounted on the rotor of the third servo motor, a drop box is fixedly mounted on the middle part of one side of the device base, a first clamping groove is provided on the lower side of the drop box, a movable frame is slidably mounted in the first clamping groove, a fifth limiting groove is provided inside the movable frame, a return spring is detachably mounted on the inner wall of the fifth limiting groove, an auger is fixedly mounted on the axis of the side of the third rotating disk away from the third servo motor, a third rotating rod is rotatably mounted on the side of the device base close to the auger, and a collecting box is horizontally placed on the lower middle side of the auger and the third rotating rod.

[0013] Preferably, the third rotating rod is conical, a protrusion is provided on the side of the third rotating disk away from the third servo motor, the protrusion of the third rotating disk is in contact with the outer wall of the movable frame, the movable frame is within the movement trajectory of the third rotating disk, and a drop groove is provided on the side of the drop box close to the auger, and the opening of the drop groove corresponds to the blade position of the auger.

[0014] Preferably, the loading and unloading structure includes a unloading box fixedly mounted on the upper part of the supporting side plate, a first electric telescopic rod is rotatably mounted on the outer wall of the unloading box, a straight rod is rotatably mounted on the telescopic end of the first electric telescopic rod, an opening and closing cover is rotatably mounted on the lower part of the unloading box, a unloading chute is provided on the side of the device base close to the wave frame, second electric telescopic rods are rotatably mounted on both sides of the unloading chute, a rotating block is rotatably mounted on the inner wall of one side of the unloading chute, second clamping grooves are provided on both sides of the unloading chute close to the rotating block, a rotating plate is rotatably mounted on one side of the sub-screening frame, a pin slot is provided on the outer wall of one side of the rotating plate, and a pin block is provided on the outer wall of the sub-screening frame.

[0015] Preferably, the latch block and the latch groove are adapted to each other, protrusions are provided on both sides of the rotating block, the telescopic ends of the two second electric telescopic rods are rotatably connected to the protrusions at both ends of the rotating block, the protrusions at both ends of the rotating block are adapted to each other, and the second clamping groove is within the movement trajectory of the protrusion of the rotating block, and two positioning plug plates are fixedly installed on the lower part of one side of the unloading chute.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the first servo motor drives the synchronous wheel linkage, and the eccentric first rotating disk drives the first movable push rod to move up and down, causing the sliding frame and the second movable push rod to impact the wave frame, so that the screening frame vibrates. During this period, multiple buffer structures effectively reduce shock to ensure the stability of the device. The sorting groove on the outer wall of the screening frame can accurately separate the ore, improve the sorting accuracy and efficiency, provide a good preliminary screening basis for the subsequent screening process, and ensure that the ore enters the subsequent links in an orderly manner according to specifications.

[0018] 2. In the present invention, after the second servo motor is started, the deflection frame is accurately aligned with the side wall of the screening frame through link transmission. The high-pressure gas collecting pump transports gas to the high-pressure nozzle through a complex pipeline. The high-pressure nozzle sprays gas, which can quickly and effectively dredge the possible blocked parts, avoid affecting the ore sorting process due to blockage, ensure the continuous and stable operation of the entire device, greatly reduce the downtime for cleaning, and improve production efficiency.

[0019] 3. In the present invention, the third servo motor drives the third rotating disk, and its protrusion pushes the movable frame to slide. The return spring helps with resetting. The rotating disk drives the auger, enabling the ore in the falling box to enter the spaces between the auger blades in an orderly manner and be transported to the collecting box. The third rotating rod assists in transportation and guidance, and realizes the diversion of large and small ores according to the diameter change, improving the screening accuracy and efficiently completing the ore classification and collection work.

[0020] 4. In the present invention, the vibration sorting device first conducts a preliminary screening of the ore. Its stable and accurate vibration sorting lays a solid foundation for the subsequent process. The anti-blocking structure monitors the whole process. Once a blockage risk is detected, it quickly starts dredging to ensure the smooth progress of vibration sorting and subsequent screening. The screening structure, on this basis, efficiently completes the final classification and collection of the ore. Each structure closely cooperates under the control of the PLC, comprehensively ensuring the efficient and stable operation of the sorting device from screening, anti-blocking to classification and collection, and greatly improving the overall efficiency and quality of ore sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the structural sectional schematic diagram of the support side plate of the present invention;

[0023] Figure 3 is the structural schematic diagram of the first limit slider of the present invention;

[0024] Figure 4 is the structural schematic diagram of the third limit groove of the present invention;

[0025] Figure 5 is the structural sectional schematic diagram of the positioning base of the present invention;

[0026] Figure 6 is the structural schematic diagram of the first rotating rod of the present invention;

[0027] Figure 7 is the structural sectional schematic diagram of the screening frame of the present invention;

[0028] Figure 8 is the structural schematic diagram of the anti-blocking structure of the present invention;

[0029] Figure 9It is a schematic cross-sectional view of the device base of the present invention;

[0030] Figure 10 It is a schematic cross-sectional view of the second ventilation pipe of the present invention;

[0031] Figure 11 It is a schematic view of the screening structure of the present invention;

[0032] Figure 12 It is a schematic view of the third rotating disk of the present invention;

[0033] Figure 13 It is a schematic view of the first electric telescopic rod of the present invention;

[0034] Figure 14 It is a schematic view of the second electric telescopic rod of the present invention;

[0035] Figure 15 It is a schematic view of the rotating block of the present invention.

[0036] In the figure: 1. Device base;

[0037] 2. Vibration sorting device; 21. Support side plate; 22. First limiting groove; 23. First limiting slider; 24. First buffer telescopic rod; 25. First buffer spring; 26. First servo motor; 27. First synchronous pulley; 28. Inner groove; 29. Positioning base; 210. First rotating rod; 211. Second synchronous pulley; 212. First rotating disk; 213. First sliding groove; 214. Second rotating disk; 215. First movable ejector rod; 216. Sliding frame; 217. Second buffer spring; 218. Limiting block; 219. Second sliding groove; 220. Second movable ejector rod; 221. Auxiliary support rod; 222. Third buffer spring; 223. Fluctuating frame; 224. Second limiting groove; 225. Second limiting slider; 226. Fourth buffer spring; 227. Second buffer telescopic rod; 228. Cam rod; 229. Screening frame; 230. Third limiting groove; 231. Fifth buffer spring; 232. Third buffer telescopic rod; 233. Third synchronous pulley;

[0038] 3. Anti-blocking structure; 31. Second servo motor; 32. Cam frame; 33. First connecting rod; 34. Second connecting rod; 35. First positioning seat; 36. Second rotating rod; 37. Third connecting rod; 38. Second positioning seat; 39. Second slider; 310. Deflection frame; 311. Fourth limiting groove; 312. Alignment plate; 313. High-pressure nozzle; 314. Placing bottom plate; 315. High-pressure air collecting pump; 316. First ventilation pipe; 317. Second ventilation pipe; 318. Movable hose;

[0039] 4. Screening structure; 41. Third servo motor; 42. Third rotating disk; 43. Falling box; 44. First clamping groove; 45. Movable frame; 46. Fifth limiting groove; 47. Return spring; 48. Screw conveyor; 49. Third rotating rod; 410. Collection box; 411. Drop slot;

[0040] 5. Loading and discharging structure; 51. Feeding box; 52. First electric telescopic rod; 53. Straight rod; 54. Opening and closing cover; 55. Feeding chute; 56. Second electric telescopic rod; 57. Rotating block; 58. Second clamping groove; 59. Positioning plug; 510. Rotating plate; 511. Pin slot; 512. Pin block. Detailed implementation manners

[0041] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0042] Example 1, as Figures 1-7 shown, the first servo motor 26 is started to drive the first synchronous wheel 27 to rotate. Through the transmission belt, the second synchronous wheel 211 and the third synchronous wheel 233 are driven to rotate. The second synchronous wheel 211 drives the first rotating rod 210 to rotate, so that the first rotating disk 212 rotates. When the first rotating disk 212 starts to rotate, it drives the first movable ejector rod 215 to rotate synchronously. Since the first movable ejector rod 215 rotates on one side of the first rotating disk 212 deviating from the center of the circle, when the first rotating disk 212 rotates, it will drive the first movable ejector rod 215 to move up and down. Through the up and down movement of the first movable ejector rod 215, the second rotating disk 214 and the sliding frame 216 are driven to move. By the up and down sliding of the sliding frame 216 in the second chute 219, the second buffer spring 217 is compressed, so that the second movable ejector rod 220 moves accordingly. Then, the second movable ejector rod 220 impacts the undulating frame 223, so that the limiting block 218 drives the undulating frame 223 to vibrate. The second limiting slider 225 on the undulating frame 223 slides in the second limiting groove 224, and the fourth buffer spring 226 plays a buffering role. Then, the started first servo motor 26 drives the cam rod 228 to rotate between the second limiting sliders 225. Due to the heavy block in the middle, the screening frame 229 vibrates, and the ores entering the screening frame 229 are sorted. The sorting grooves on the outer wall of the screening frame 229 can separate different ores. The first buffer telescopic rod 24 and the first buffer spring 25, the third buffer telescopic rod 232 and the fifth buffer spring 231, the auxiliary support rod 221 and the third buffer spring 222, etc. play a role in buffering and stabilizing the device.

[0043] Example 2, as Figures 8-10As shown, the second servo motor 31 starts, driving the cam holder 32 to rotate. Through the first connecting rod 33 and the second connecting rod 34, the second rotating rod 36 rotates. The third connecting rod 37 drives the deflecting frame 310 to move. The second slider 39 slides in the fourth limiting groove 311 to ensure the stable movement of the deflecting frame 310, aligning the deflecting frame 310 with the side wall of the screening frame 229. The high-pressure gas collecting pump 315 operates, delivering gas through the first gas pipe 316, the second gas pipe 317, and the flexible hose 318 to the high-pressure nozzle 313. The high-pressure nozzle 313 sprays gas to dredge the possibly blocked parts.

[0044] Embodiment 3, as Figures 11-12 As shown, the third servo motor 41 starts, driving the third rotating disc 42 to rotate. The protrusion of the third rotating disc 42 contacts the movable frame 45, causing the movable frame 45 to slide in the first clamping groove 44. The return spring 47 plays a reset role. The third rotating disc 42 drives the auger 48 to rotate. The ore in the dropping box 43 is pushed by the movable frame 45 and enters between the blades of the auger 48 through the dropping slot 411, and is conveyed by the auger 48 into the collecting box 410. The third rotating rod 49 plays an auxiliary conveying and guiding role. The conical design of the third rotating rod 49 enables ores of different particle sizes to slide along different inclinations, and through the change in the diameter of the third rotating rod 49, ores of different sizes fall into different slots.

[0045] Embodiment 4, as Figures 13-15 As shown, the blanking box 51 of the loading and unloading structure 5 conveys the ore to the blanking chute 55 through the first electric telescopic rod 52 and the opening and closing cover 54, and then enters the screening frame 229 of the vibration sorting device 2. The first servo motor 26 of the vibration sorting device 2 drives each component to vibrate the screening frame 229 to sort the ore. During the sorting process, the second servo motor 31 of the anti-blocking structure 3 drives the high-pressure nozzle 313 to work to prevent the ore from being blocked. The sorted ore falls into the dropping box 43. The third servo motor 41 of the screening structure 4 drives the auger 48 to convey the ore to the collecting box 410. Then, the rotating plate 510 is opened. After adjusting the direction of the rotating block 57, the ore with a larger size inside the screening frame 229 that cannot be picked out is taken out from the inside of the screening frame 229 for reprocessing, and then the processed ore is put back into the blanking box 51. Each structure works in coordination through PLC control to ensure the efficient and stable operation of the sorting device.

[0046] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A PLC-controlled automatic sorting device for mining machines, comprising a device base (1), characterized in that: A vibration sorting device (2) is provided inside one side of the device base (1); an anti-blocking structure (3) is provided on one side of the outer wall of the device base (1); a screening structure (4) is provided on the lower side of the device base (1) close to the anti-blocking structure (3); and a loading and unloading structure (5) is provided on the upper part of the device base (1); The vibration sorting device (2) comprises a supporting side plate (21) horizontally placed on one side of the device base (1), a first limiting groove (22) is provided in the middle of the upper side of the supporting side plate (21), a first limiting slider (23) is slidably installed in the first limiting groove (22), a first servo motor (26) is fixedly installed on the outer wall of one side of the first limiting slider (23), a first synchronous wheel (27) is detachably installed on the rotor of the first servo motor (26), an inner groove (28) is provided inside the device base (1), a positioning base (29) is fixedly installed inside the inner groove (28), a first sliding groove (213) is provided in the middle of the positioning base (29), a first rotating rod (210) is rotatably installed on the inner wall of one side of the first sliding groove (213), a second synchronous wheel (211) is fixedly installed on one end of the first rotating rod (210), and the first rotating rod (210) is fixedly installed on the inner wall of one side of the first rotating rod (210), and the first rotating rod (210) is fixedly installed on one end of the first rotating rod (210). A first rotating disk (212) is fixedly mounted on one end of the movable rod (210) away from the second synchronous wheel (211); a first movable push rod (215) is rotatably mounted on the side of the first rotating disk (212) away from the first slide groove (213) and deviating from the center of the circle; a limiting block (218) is slidably mounted on the upper side of the first slide groove (213); a second slide groove (219) is provided inside the limiting block (218); a wave frame (223) is fixedly mounted on one end of the limiting block (218) away from the positioning base (29); second limiting grooves (224) are provided on the upper parts of both sides of the wave frame (223); second limiting sliding blocks (225) are slidably mounted inside the two second limiting grooves (224); a cam rod (228) is rotatably mounted on the opposite side of the two second limiting sliding blocks (225); and a sub-screening frame (229) is provided on the outer wall of the cam rod (228).

2. The PLC-controlled automatic sorting device for mining machines according to claim 1, characterized in that: The first buffer telescopic rod (24) is detachably mounted on both upper and lower sides of the first limiting slider (23); the outer walls of the two first buffer telescopic rods (24) are both provided with a first buffer spring (25); the first movable push rod (215) is rotatably mounted with a second rotating disk (214) on a side away from the first rotating disk (212); a sliding frame (216) is rotatably mounted on the upper end of the first movable push rod (215); the upper part of the sliding frame (216) slides in the second sliding groove (219); a second buffer spring (217) is detachably mounted on the upper side of the sliding frame (216); the lower end of the second buffer spring (217) is detachably mounted on the inner wall of the second sliding groove (219); a second movable push rod (220) is slidably mounted at the axis of the sliding frame (216); the positioning base (29) Auxiliary support rods (221) are fixedly installed on both sides of the auxiliary support rods (221), and a third buffer spring (222) is detachably installed inside the auxiliary support rods (221). Second buffer telescopic rods (227) are detachably installed on the upper and lower sides of the two second limiting sliders (225), and a fourth buffer spring (226) is arranged on the outer wall of each group of the second buffer telescopic rods (227). A third limiting groove (230) is opened on the side of the fluctuation frame (223) close to the second limiting groove (224), and a third buffer telescopic rod (232) is detachably installed on the inner wall of the third limiting groove (230). A fifth buffer spring (231) is arranged on the outer wall of the third buffer telescopic rod (232), and a third synchronous wheel (233) is slidably installed on the inner wall of the third limiting groove (230) away from the third buffer telescopic rod (232).

3. The PLC-controlled automatic sorting device for mining machines according to claim 2 is characterized in that: The two ends of the first buffer spring (25) are detachably mounted on the side wall of the first limiting slider (23) and the inner wall of the first limiting groove (22), respectively; the two ends of the fourth buffer spring (226) are detachably mounted on the side wall of the second limiting slider (225) and the inner wall of the second limiting groove (224), respectively; the first synchronous wheel (27), the second synchronous wheel (211) and the third synchronous wheel (233) are all connected by a transmission belt transmission; a weight block is arranged on the middle side wall of the cam rod (228); one end of the cam rod (228) penetrates through the axis of the second limiting slider (225) and the first synchronous wheel (27) and is detachably mounted; a plurality of sorting slots are equidistantly provided on the outer wall of the screening frame (229); and the positioning base (29) is in a mountain shape.

4. The PLC-controlled automatic sorting device for mining machines according to claim 1 is characterized in that: The anti-blocking structure (3) comprises a second servo motor (31) mounted in the middle of one side of the device base (1); a cam frame (32) is detachably mounted on the rotor of the second servo motor (31); a first connecting rod (33) is rotatably mounted on one end of the cam frame (32) away from the second servo motor (31); a second connecting rod (34) is rotatably mounted on one end of the first connecting rod (33) away from the cam frame (32); two first positioning seats (35) are fixedly mounted on the upper part of one side of the device base (1); a second rotating rod (36) is rotatably mounted on the opposite side of the two first positioning seats (35); a third connecting rod (37) is fixedly mounted on both ends of the second rotating rod (36) close to the first positioning seats (35); a deflection frame (310) is rotatably mounted on one end of the two third connecting rods (37) away from the second rotating rod (36); and a fourth limiting groove (311) is provided inside the two deflection frames (310). An alignment plate (312) is fixedly mounted on one end of the two deflection frames (310), and a plurality of high-pressure nozzles (313) are fixedly mounted inside the alignment plate (312) at equal intervals. Two second positioning seats (38) are fixedly mounted on the upper part of one side of the device base (1) close to the first positioning seat (35), and a second slider (39) is rotatably mounted on the upper part of the opposite side of the two second positioning seats (38). A placement base plate (314) is fixedly mounted on the lower part of the opposite side of the two second positioning seats (38), and a high-pressure air collecting pump (315) is fixedly mounted on the middle part of one side of the placement base plate (314). The air outlet of the high-pressure air collecting pump (315) is connected to a first ventilation pipe (316), and three second ventilation pipes (317) are fixedly mounted on the outer wall of the first ventilation pipe (316) at equal intervals. A plurality of movable hoses (318) are fixedly mounted on the side of the three second ventilation pipes (317) close to the alignment plate (312) at equal intervals.

5. The PLC-controlled automatic sorting device for mining machines according to claim 4 is characterized in that: The second slider (39) slides in the fourth limiting groove (311), and the end of the movable hose (318) away from the second ventilation pipe (317) is detachably mounted on the high-pressure nozzle (313), and the number of the high-pressure nozzle (313) and the movable hose (318) corresponds to each other. Both ends of the second rotating rod (36) pass through the first positioning seat (35) and are fixedly mounted on the end of the second connecting rod (34) away from the first connecting rod (33), and the high-pressure nozzle (313) corresponds to the sorting groove on the outer wall of the screening frame (229).

6. The PLC-controlled automatic sorting device for mining machines according to claim 1, characterized in that: The screening structure (4) comprises a third servo motor (41) fixedly mounted on the lower part of one side of the device base (1); a third rotating disk (42) is detachably mounted on the rotor of the third servo motor (41); a drop box (43) is fixedly mounted on the middle part of one side of the device base (1); a first clamping groove (44) is provided on the lower side of the drop box (43); a movable frame (45) is slidably mounted in the first clamping groove (44); a fifth limiting groove (46) is provided inside the movable frame (45); a return spring (47) is detachably mounted on the inner wall of the fifth limiting groove (46); an auger (48) is fixedly mounted on the axis of one side of the third rotating disk (42) away from the third servo motor (41); a third rotating rod (49) is rotatably mounted on the side of the device base (1) close to the auger (48); a collecting box (410) is horizontally placed on the lower middle side of the auger (48) and the third rotating rod (49).

7. The PLC-controlled automatic sorting device for mining machines according to claim 6 is characterized in that: The third rotating rod (49) is conical, and a protrusion is provided on the side of the third rotating disk (42) away from the third servo motor (41), and the protrusion of the third rotating disk (42) contacts the outer wall of the movable frame (45), and the movable frame (45) is located within the movement trajectory of the third rotating disk (42). A drop groove (411) is provided on the side of the drop box (43) close to the auger (48), and the opening of the drop groove (411) corresponds to the position of the blades of the auger (48).

8. The PLC-controlled automatic sorting device for mining machines according to claim 3 is characterized in that: The loading and unloading structure (5) comprises a material discharge box (51) fixedly mounted on the upper part of the supporting side plate (21); a first electric telescopic rod (52) is rotatably mounted on the outer wall of the material discharge box (51); a straight rod (53) is rotatably mounted on the telescopic end of the first electric telescopic rod (52); an opening and closing cover (54) is rotatably mounted on the lower part of the material discharge box (51); a material discharge chute (55) is arranged on one side of the device base (1) close to the wave frame (223); and the material discharge chute (55) A second electric telescopic rod (56) is rotatably mounted on both sides of the sub-screen frame (229); a rotating block (57) is rotatably mounted on the inner wall of one side of the material discharge chute (55); second locking grooves (58) are provided on both sides of the material discharge chute (55) close to the rotating block (57); a rotating plate (510) is rotatably mounted on one side of the sub-screen frame (229); a latch groove (511) is provided on the outer wall of one side of the rotating plate (510); and a latch block (512) is provided on the outer wall of the sub-screen frame (229).

9. The PLC-controlled automatic sorting device for mining machines according to claim 8, characterized in that: The latch block (512) and the latch slot (511) are adapted to each other, protrusions are provided on both sides of the rotating block (57), the telescopic ends of the two second electric telescopic rods (56) are rotatably connected to the protrusions at both ends of the rotating block (57), the protrusions at both ends of the rotating block (57) are adapted to each other and the second clamping slot (58), and the second clamping slot (58) is within the movement track of the protrusion of the rotating block (57), and two positioning plug plates (59) are fixedly installed on the lower part of one side of the unloading chute (55).

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