A mineral powder automatic sampling and sample preparation system and method

Abstract

The present invention relates to the technical field of mineral powder sampling equipment, in particular to an automatic mineral powder sampling, sample preparation system and method. The automatic mineral powder sampling and sample preparation system comprises a detection frame, a sampling device, a sample preparation device, and a sampling rod cleaning device. The detection frame comprises a longitudinal rod, a light curtain detection mechanism, and a distance measuring mechanism. The light curtain detection mechanism is installed on the detection frame for detecting the outer contour of the mineral powder car. The longitudinal rod is provided with a lifting mechanism, and the distance measuring mechanism is installed on the lifting mechanism. The distance measuring mechanism can detect the inner contour of the mineral powder car in the compartment of the mineral powder car; the sampling device comprises a sampling rod and a scraping mechanism. The sampling rod moves on the longitudinal rod to the scraping mechanism to perform a scraping process; the longitudinal rod drives the scraping mechanism to move to the sample preparation device to perform a sample preparation process; the sampling rod moves on the longitudinal rod to the sampling rod cleaning device to perform a sampling rod cleaning process. The present invention realizes full automation of mineral powder sampling and sample preparation, with a compact overall layout and reasonable structural design.

Description

Technical Field

[0001] The invention relates to the technical field of mineral powder sampling equipment, in particular to a mineral powder automatic sampling and sample preparation system and method. Background Art

[0002] During the production or transportation of mineral powder, especially the production and transportation of concentrate powder, sampling work can truly and reliably reflect the actual situation of the mineral powder. The mineral powder sampling method in the prior art usually relies on manual sampling and then testing the sampled mineral powder. It mainly has the following defects: untimely sampling; long sampling intervals and uneven sampling, which will lead to inaccurate and unscientific test data. Summary of the invention

[0003] The main purpose of the present invention is to overcome the shortcomings of the prior art and provide a mineral powder automatic sampling and sampling system and method which realizes full automation of mineral powder sampling and sample preparation, has a compact overall layout and a reasonable structural design.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A mineral powder automatic sampling and sample preparation system, comprising:

[0006] A detection frame is formed inside the detection frame, and a driving passage for the mineral powder vehicle to pass through is formed therein; the detection frame comprises a longitudinal rod, a light curtain detection mechanism, and a distance measuring mechanism, wherein the longitudinal rod is arranged above the driving passage, and the longitudinal rod can move forward and backward along the driving passage; the light curtain detection mechanism is installed on the detection frame to detect the outer contour of the mineral powder vehicle; a lifting mechanism is provided on the longitudinal rod, and the lifting mechanism can slide along the length direction of the longitudinal rod, and the distance measuring mechanism is installed on the lifting mechanism, and the distance measuring mechanism comprises a telescopic assembly and a laser distance measuring device arranged at the bottom of the telescopic assembly, and the telescopic assembly drives the laser distance measuring device to extend into the compartment of the mineral powder vehicle to detect the inner contour of the mineral powder vehicle;

[0007] The sampling device performs sampling according to the sampling position determined by the detected outer and inner contours of the mineral powder vehicle; it includes a sampling rod arranged below the lifting mechanism and a scraping mechanism fixed at one end of the longitudinal rod, and the lifting mechanism can drive the sampling rod to move vertically into the mineral powder vehicle for sampling; the scraping mechanism includes a scraper and a material tank arranged below the scraper, the sampling rod corresponds to the scraper, the sampling rod moves toward the scraping mechanism on the longitudinal rod, and the mineral powder is scraped into the material tank through the scraper;

[0008] The sample preparation device is arranged on one side of the detection frame. The sample preparation device includes a manipulator and an operating mechanism. The longitudinal rod drives the scraping mechanism to move to the manipulator. The manipulator grabs the material tank and performs the sample preparation process at the operating mechanism.

[0009] The sampling rod cleaning device is arranged on the detection frame and includes a transfer mechanism. A rod storage platform and a cleaning mechanism are arranged in sequence below the transfer mechanism. The sampling rod moves toward the rod storage platform on the longitudinal rod, the sampling rod is placed on the rod storage platform, and is driven by the transfer mechanism to the cleaning mechanism for cleaning.

[0010] Furthermore, the light curtain detection mechanism is arranged on both sides of the driving channel, and the light curtain detection mechanism emits a light curtain parallel to the ground into the driving channel. The light curtain detection mechanism includes a first emission group and several second emission groups. The first emission group is arranged at the front end of the driving channel, and the second emission groups are arranged at intervals at the rear end of the driving channel. The front of the mineral powder truck is located within the range of the light curtain emitted by the first emission group, and the rear of the mineral powder truck is located within the range of the light curtain emitted by the second emission group.

[0011] Furthermore, the laser rangefinder includes a first transmitting position and a second transmitting position. The first transmitting position is distributed around the laser rangefinder, and the first transmitting position horizontally transmits a laser beam outward to measure the contour inside the mineral powder car compartment. The second transmitting position is set on the bottom surface of the laser rangefinder, and the second transmitting position vertically transmits a laser beam to measure the distance between the laser rangefinder and the mineral powder in the mineral powder car compartment.

[0012] Furthermore, the detection frame also includes a safety device, which includes a floor scale arranged on the driving channel, anti-collision bars arranged on both sides of the driving channel, gate assemblies arranged at the front and rear ends of the driving channel, and a speed bump arranged at the front end of the floor scale. The floor scale is tilted downward toward the end where the speed bump is arranged. The mineral powder truck is recognized to pass through the gate assembly and drives to the floor scale. The speed bump is used to locate the stopping position of the mineral powder truck.

[0013] Furthermore, the detection frame also includes a first sliding mechanism and two transverse rods, the two transverse rods are arranged in parallel and spaced apart, and the longitudinal rod is slidably arranged between the two transverse rods; the first sliding mechanism includes a gear guide rail, a sliding member, and a transmission member, the gear guide rail is arranged on the opposite side of the two transverse rods, and the sliding member is arranged at both ends of the longitudinal rod; the sliding member is slidably arranged on the gear guide rail, the transmission member connects the sliding members at both ends of the longitudinal rod, and the transmission member drives the two sliding members to drive the longitudinal rod to slide on the gear guide rail.

[0014] Furthermore, the sliding member includes a mounting plate, a pulley, and a gear. The pulley is provided in two rows, and the two rows of pulleys are arranged on the mounting plate along a vertical interval. The gear guide rail is arranged between the two rows of pulleys, and the two rows of pulleys can slide on the gear guide rail. The gear is arranged on the mounting plate, and a transmission groove for accommodating the gear is provided in the middle of the gear guide rail, and a rack matching the gear is provided in the transmission groove; the transmission member includes a motor and a transmission rod, and the transmission rod is connected to the gears of the sliding members at both ends of the longitudinal rod. The motor drives the gear to drive the two sliding members to slide on the gear guide rail through the transmission rod.

[0015] Furthermore, a second sliding mechanism is provided on the longitudinal rod, and the lifting mechanism is arranged on the second sliding mechanism. The second sliding mechanism includes a gear guide rail, a mounting plate, a pulley, a gear, and a motor. The gear guide rail is arranged on one side of the longitudinal rod, and the pulley is provided in two rows. The two rows of pulleys are arranged on the mounting plate along a vertical interval. The gear guide rail is arranged between the two rows of pulleys, and the two rows of pulleys can slide on the gear guide rail. The gear is arranged on the mounting plate. A transmission groove for accommodating the gear is provided in the middle of the gear guide rail, and a rack matching the gear is provided in the transmission groove; the motor is connected to the gear, and the motor drives the gear to drive the lifting mechanism to move on the longitudinal rod.

[0016] Furthermore, the operating mechanism includes a waste sample barrel, a mixing table, an electronic scale, and a packaging inkjet printer which are sequentially arranged around the manipulator. The manipulator drives the material tank to pass through the mixing table, the electronic scale, and the packaging inkjet printer in sequence to reduce and package the mineral powder sampled in the material tank. The waste sample barrel is used to place the waste mineral powder.

[0017] Furthermore, the transfer mechanism can move along the arrangement direction of the rod storage platform and the cleaning mechanism, and the cleaning mechanism includes a high-pressure water cleaning box, an ultrasonic cleaning box, and a drying box. The high-pressure water cleaning box, the ultrasonic cleaning box, the drying box, and the rod storage platform are arranged in sequence, and the transfer mechanism drives the sampling rod of the rod storage platform to pass through the high-pressure water cleaning box, the ultrasonic cleaning box, and the drying box in sequence to perform the cleaning and drying process of the sampling rod.

[0018] A method for automatic sampling and sample preparation of mineral powder, the method steps are as follows:

[0019] Step 1: The light curtain detection mechanism emits a light curtain toward the driving channel. The mineral powder car enters the driving channel and is located in the light curtain. The light curtain measures the outer contour of the mineral powder car. The distance measuring mechanism is driven by the longitudinal rod and the lifting mechanism and is located above the mineral powder car compartment. The telescopic assembly drives the laser rangefinder to move vertically downward into the mineral powder car compartment. The laser rangefinder measures the inner contour of the mineral powder car compartment. A coordinate system is established for the location of the mineral powder car compartment based on the measurement data of the light curtain detection mechanism and the distance measuring mechanism, and several sampling positions are selected based on the coordinate system.

[0020] Step 2: The sampling rod moves to the sampling position through the longitudinal rod, and the lifting mechanism drives the sampling rod to move vertically downward until the sampling rod is inserted into the mineral powder for sampling. After the sampling is completed, the sampling rod moves to the scraping mechanism on the longitudinal rod, and the sampling rod cooperates with the scraper to scrape the mineral powder into the material tank through the scraper.

[0021] Step 3: the sampling rod moves to the next sampling position to perform sampling operation, and the sampling device repeats the sampling and scraping process of step 2 until the sampling device completes the sampling operation of each sampling position;

[0022] Step 4: The sampling device completes the sampling process, and the longitudinal rod drives the sampling rod to move to the corresponding position of the rod storage platform of the sampling rod cleaning device. The sampling rod moves to the rod storage platform on the longitudinal rod, and the sampling rod is placed on the rod storage platform, and the sampling device replaces the cleaned sampling rod; the transfer mechanism drives the used sampling rod through the cleaning mechanism to perform the sampling rod cleaning process; the sampling rod completes the cleaning process, and the transfer mechanism drives the sampling rod to be placed on the rod storage platform for the next replacement; the longitudinal rod drives the scraping mechanism to move to the manipulator, the manipulator grabs the material tank of the scraping mechanism, and the manipulator drives the material tank through the operating mechanism to reduce and pack the mineral powder.

[0023] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0024] First, the sampling and sample preparation process of mineral powder is automated, which saves a lot of labor, improves the efficiency of the sampling and sample preparation process of mineral powder, ensures the timeliness of sampling and sample preparation, and makes the test data more accurate;

[0025] Second, the sampling position is automatically calculated for sampling to ensure randomness and non-repetitiveness of sampling; after sampling is completed, it immediately enters the process of reduction, packaging, and waste material collection to ensure the authenticity and representativeness of the sampled samples; after sampling is completed, the sampling rod is cleaned and replaced without affecting the authenticity of the next sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the automatic sampling and sample preparation system of mineral powder of the present invention.

[0027] Figure 2 It is a top plan view schematic diagram of the automatic sampling and sample preparation system for mineral powder of the present invention.

[0028] Figure 3 It is a side plan view schematic diagram of the automatic sampling and sample preparation system for mineral powder of the present invention.

[0029] Figure 4 It is a first plan view of the sampling device of the present invention.

[0030] Figure 5 It is a second plan view of the sampling device of the present invention.

[0031] Figure 6 It is a partial schematic diagram of the automatic sampling and sample preparation system of mineral powder of the present invention.

[0032] In the figure: 1. Detection frame, 11. Driving channel, 12. Installation device, 121. Floor scale, 122. Anti-collision bar, 123. Gate assembly, 124. Speed ​​bump, 13. Longitudinal bar, 14. Transverse bar, 15. Light curtain detection mechanism, 151. Light curtain, 152. First launch group, 153. Second launch group, 16. Distance measurement mechanism, 161. Telescopic assembly, 162. Laser rangefinder, 2. Sampling device, 21. Sampling rod, 22. Scraping mechanism, 221. Bracket, 222. Scraper, 223. Material tank, 224. Buffer cylinder, 23. Rotating mechanism, 24. Mounting frame, 3. Sample preparation device, 31. Manipulator, 32. Mixing table, 33. Electronic scale, 34. Packing inkjet printer, 35. Sample disposal barrel, 36. Ultrasonic cleaning box, 37. Material tank rack, 4. Sampling rod cleaning device, 41. Transfer mechanism, 42. Rod storage table, 43. Drying box, 44. Ultrasonic cleaning box, 45. High-pressure water cleaning box, 5. Lifting mechanism, 6. First sliding mechanism, 61. Gear guide rail, 62. Sliding part, 621. Mounting plate, 622. Pulley, 623. Gear, 63. Transmission part, 631. Motor, 632. Transmission rod, 7. Second sliding mechanism, 71. Gear guide rail, 72. Mounting plate, 73. Pulley, 74. Gear, 75. Motor, 8. Mineral powder car. DETAILED DESCRIPTION

[0033] The present invention is further described below through specific implementation modes.

[0034] Reference Figures 1 to 6 The present invention discloses an automatic sampling and sample preparation system for mineral powder, comprising a detection frame 1, a sampling device 2, a sample preparation device 3, a sampling rod cleaning device 4, a lifting mechanism 5, a first sliding mechanism 6, a second sliding mechanism 7, a mineral powder vehicle 8, and a control system.

[0035] A driving passage 11 is formed in the detection frame 1 for the mineral powder vehicle 8 to pass through; the detection frame 1 includes a mounting device 12, a longitudinal rod 13, a transverse rod 14, a light curtain detection mechanism 15, and a distance measuring mechanism 16. The detection frame 1 is provided with an observation station for observing and judging the type of mineral powder loaded on the mineral powder vehicle 8; the safety device 12 includes a floor scale 121 arranged on the driving passage 11, anti-collision rods 122 arranged on both sides of the driving passage 11, a gate assembly 123 arranged at the front and rear ends of the driving passage 11, and a speed bump 124 arranged at the front end of the floor scale 121. The gate assembly 123 includes a control box and a gate rod. The gate rod is rotatably connected to the control box. The gate at the rear end of the driving passage 11 A camera is provided on the component, and the camera head of the camera faces the mineral powder truck 8 to record the vehicle information of the mineral powder truck 8. The gate component 123 controls the entry and exit of the mineral powder truck 8, records the vehicle information, and voice reminds the sampling progress of the mineral powder truck 8; the mineral powder truck 8 is recognized by the gate component 123 and moves to the scale 121. The scale 121 is tilted downward by 1° toward the end where the speed bump 124 is provided to prevent the mineral powder truck 8 from slipping backward and damaging the device. Even if the mineral powder truck 8 slips forward, it can be stuck on the speed bump 124, and the speed bump 124 can be used to assist the driver in judging whether the mineral powder truck 8 is in place; the anti-collision bar 122 is used to protect the detection frame 1 from being hit by the mineral powder truck 8.

[0036] The longitudinal rod 13 and the transverse rod 14 are arranged above the driving channel 11. There are two transverse rods 14. The two transverse rods 14 are arranged in parallel and spaced apart. The longitudinal rod 13 is slidably arranged between the two transverse rods 14, and the longitudinal rod 13 can move forward and backward along the driving channel 11; the first sliding mechanism 6 includes a gear guide 61, a sliding member 62, and a transmission member 63. The gear guide 61 is arranged on the opposite side of the two transverse rods 14, and the sliding members 62 are arranged at both ends of the longitudinal rod 13. The sliding member 62 is slidably arranged on the gear guide 61. The transmission member 63 connects the sliding members 62 at both ends of the longitudinal rod 13, and the transmission member 63 drives the two sliding members 62 to drive the longitudinal rod 13 to slide on the gear guide 61; the sliding member 62 includes an installation Plate 621, pulley 622, gear 623, pulley 622 is provided with two rows, two rows of pulleys 622 are arranged on the mounting plate 621 along the vertical interval, the gear guide rail 61 is arranged between the two rows of pulleys 622, the two rows of pulleys 622 can slide on the gear guide rail 61, the gear 623 is arranged on the mounting plate 621, a transmission groove for accommodating the gear 623 is provided in the middle of the gear guide rail 61, and a rack matching the gear 623 is provided in the transmission groove; the transmission member 63 includes a motor 631 and a transmission rod 632, the transmission rod 632 is connected to the gear 623 of the sliding member 62 at both ends of the longitudinal rod 13, the motor 631 drives the gear 623 to drive the two sliding members 62 to slide on the gear guide rail 61 through the transmission rod 632. The lifting mechanism 5 can be slidably arranged on the longitudinal rod 13 along the length direction of the longitudinal rod 13, the second sliding mechanism 7 is arranged between the lifting mechanism 5 and the longitudinal rod 13, the second sliding mechanism 7 includes a gear guide rail 71, a mounting plate 72, a pulley 73, a gear 74, and a motor 75. The gear guide rail 71 is arranged on one side of the longitudinal rod 13, and the pulley 73 is provided with two rows. The two rows of pulleys 73 are arranged on the mounting plate 72 along the vertical interval. The gear guide rail 71 is arranged between the two rows of pulleys 73, and the two rows of pulleys 73 can slide on the gear guide rail 71. The gear 74 is arranged on the mounting plate 72. A transmission groove that can accommodate the gear 74 is provided in the middle of the gear guide rail 71, and a rack that cooperates with the gear 74 is provided in the transmission groove; the motor 75 is connected to the gear 74, and the motor 75 drives the gear 74 to drive the lifting mechanism 5 to move on the longitudinal rod 13.

[0037] The light curtain detection mechanism 15 is installed on the detection frame 1 and is arranged on both sides of the driving channel 11. The light curtain detection mechanism 15 emits a light curtain 151 parallel to the ground into the driving channel 11. The light curtain detection mechanism 15 includes a first emission group 152 and three second emission groups 153. The first emission group 152 is arranged at the front end of the driving channel 11, and the second emission groups 153 are arranged at intervals at the rear end of the driving channel 11. The connection position between the front of the mineral powder car 8 and the bucket is located within the range of the light curtain 151 emitted by the first emission group 152, the light curtain 151 of the first emission group 153 is blocked and the state of the light curtain 151 changes, and the rear of the mineral powder car 8 is located within the range of the light curtain 151 emitted by one of the second emission groups 153, the light curtain 151 of the second emission group 153 is blocked and the state of the light curtain 151 changes, so as to calculate the position of the bucket and the parking space, thereby measuring the outer contour of the mineral powder car 8; three second emission groups 153 are set to judge different vehicle types, so as to execute corresponding programs for each vehicle type. The distance measuring mechanism 16 is arranged on the lifting mechanism 5, and the distance measuring mechanism 16 includes a telescopic component 161 and a laser rangefinder 162. The telescopic component 161 includes a first telescopic rod and a second telescopic rod. The laser rangefinder 162 is arranged at the bottom of the second telescopic rod. The first telescopic rod can be vertically lifted and lowered and arranged on the side of the lifting mechanism 5. The second telescopic rod is slidably connected to the first telescopic rod, and the second telescopic rod can move vertically. The laser rangefinder 162 includes a first transmitting position and a second transmitting position. The first transmitting position surrounds the laser rangefinder 162. The first transmitting position horizontally transmits a laser beam outward to measure the inner contour of the mineral powder car 8, and the second transmitting position is set on the bottom surface of the laser rangefinder 162. The second transmitting position vertically transmits a laser beam to measure the distance between the laser rangefinder 162 and the mineral powder in the mineral powder car 8, so as to avoid the laser rangefinder 162 colliding with the mineral powder in the car when detecting the inner contour of the mineral powder car 8; the telescopic component 161 adopts a two-stage telescopic rod, which can ensure that the detection of the inner contour of the mineral powder car 8 can be completed by moving, and the space occupied by the telescopic component 8 is reduced. A coordinate system is established for the position of the mineral powder car 8 car according to the measurement data of the light curtain detection mechanism 15 and the distance measurement mechanism 16, and a number of sampling positions are selected according to the coordinate system.

[0038] The sampling device 2 includes a sampling rod 21, a scraping mechanism 22, a rotating mechanism 23, and a mounting frame 24. The mounting frame 24 is rotatably arranged below the lifting mechanism 5, and the rotating mechanism 23 is installed on the mounting frame 24. A buffer mechanism is provided on the top of the sampling rod 21. There are two sampling rods 21. The two sampling rods 21 are arranged below the mounting frame 24 and are connected to the rotating mechanism 23. The rotating mechanism 23 can drive the two sampling rods 21 to rotate; when moving to the next group of sampling positions, the mounting frame 24 drives the two sampling rods 21 to randomly rotate an angle, and sampling is performed at random positions and random angles to ensure the non-repetitiveness of each sampling; the scraping mechanism 22 is fixed to one end of the longitudinal rod 13 facing the sample preparation device, and the scraping mechanism 22 includes a bracket 221, a scraper 222 arranged on the bracket 221, and a material tank 223. The material tank 223 is arranged below the scraper 222, and a buffer cylinder 224 is provided on one side of the scraper 222. The scraper 222 is connected to the Two material tanks 223 are provided respectively, and each scraper 222 corresponds to each material tank 223 one by one, and two sampling rods 21 correspond to each scraper 222 respectively; the sampling rod 21 moves to the sampling position, and the lifting mechanism 5 drives the sampling rod 21 to move vertically downward into the mineral powder. When the sampling rod 21 touches the bottom of the carriage, the sampling rod 21 is reversed upward by the buffer mechanism and stops moving downward. The rotating mechanism 23 drives the sampling rod 21 to rotate to crush the mineral powder block and cut off the mineral powder. The second sliding mechanism 7 drives the sampling rod 21 to move toward one end of the longitudinal rod 13 where the scraping mechanism 22 is provided, and the sampling rod 21 moves to the scraper 222. The lifting mechanism 5 drives the sampling rod 21 to move so that the scraper 222 scrapes the mineral powder in the sampling rod 21 into the material tank 223. The buffer cylinder 224 arranged on one side of the scraper 222 prevents the scraper 222 from colliding with the sampling rod 21 and damaging the sampling rod 21.

[0039] The sample preparation device 3 is arranged on one side of the detection frame 1, and the sample preparation device 3 includes a manipulator 31, a mixing table 32, an electronic scale 33, a packaging inkjet printer 34, a discarded sample barrel 35, an ultrasonic cleaning box 36, and a material tank rack 37. The scraper mechanism 22 and the sample preparation device 3 are arranged on the same side of the detection frame 1. The longitudinal rod 13 drives the scraper mechanism 22 to move to the sample preparation device 3. The manipulator 31 grabs the material tank 223, and the manipulator 31 places the mineral powder in the two material tanks 223 on the mixing table 32 for crushing and mixing. The manipulator 31 The mixed mineral powder is weighed on the electronic scale 33 until it meets the weight requirement of the reduced sample. The robot 31 drives the reduced sample to be packaged and sprayed with code at the packaging inkjet printer 34; the robot 31 drives the mixed mineral powder to repeat the reduction and packaging process until the number of samples is packaged, and the remaining mineral powder is poured into the waste sample bucket 35 to wait for subsequent manual processing; the robot 31 places the material tank 223 and moves it to the ultrasonic cleaning water tank 36 for cleaning. The robot 31 drives the cleaned material tank 223 to be moved to the material tank rack 37 by the robot 31, waiting for the next sample preparation.

[0040] The sampling rod cleaning device 4 is arranged on the detection frame 1, and the sampling rod cleaning device 4 includes a transfer mechanism 41, a rod storage platform 42, a drying box 43, an ultrasonic cleaning box 44, and a high-pressure water cleaning box 45 arranged below the transfer mechanism 41. The high-pressure water cleaning box 45, the ultrasonic cleaning box 44, the drying box 43, and the rod storage platform 42 are arranged in sequence. The second sliding mechanism 7 drives the sampling rod 21 that has been used to slide on the longitudinal rod 13 to the sampling rod cleaning device 4, and the sampling rod 21 is placed on the rod storage platform 42, and the sampling device 2 replaces the cleaned sampling rod 21 and waits for the next sampling; the transfer mechanism 41 drives the used sampling rod 21 to move, and the sampling rod 21 passes through the high-pressure water cleaning box 45, the ultrasonic cleaning box 44, and the drying box 43 in sequence for cleaning and drying. The transfer mechanism 41 moves the sampling rod 21 that has been cleaned and dried to the rod storage platform 42, waiting for the next replacement.

[0041] The working principle of this mineral powder automatic sampling and sample preparation system is as follows:

[0042] Step 1: The light curtain detection mechanism 15 emits a light curtain 151 toward the driving channel 11. The mineral powder car 8 enters the driving channel 11 and stands firmly at the speed bump 124. The connection position between the front of the mineral powder car 8 and the car bucket is located within the range of the emission light curtain 151 of the first emission group 152. The rear of the mineral powder car 8 is located within the range of the emission light curtain 151 of one of the second emission groups 153. The light curtain detection mechanism 15 measures the outer contour of the mineral powder car 8. The distance measuring mechanism 16 is driven by the longitudinal rod 13 and the lifting mechanism 5 and is located above the car body of the mineral powder car 8. The telescopic component 161 drives the laser rangefinder 162 moves vertically downward into the compartment of the mineral powder car 8, the second transmitter detects the distance between the laser rangefinder 162 and the mineral powder to avoid collision, the first transmitter detects the distance between the inner wall of the compartment and the laser rangefinder 162, and then measures the inner contour of the compartment of the mineral powder car 8; the measurement data of the light curtain detection mechanism 15 and the distance measurement mechanism 16 are sent to the control system, and the control system calculates the position of the compartment of the mineral powder car 8 through the feedback data and establishes a coordinate system; the observation station observes the type of mineral powder in the mineral powder car 8 and feeds back to the control system to call the corresponding program, and the control system selects several sampling positions;

[0043] Step 2: The second sliding mechanism 7 drives the sampling rod 21 to move to the sampling position on the longitudinal rod 13, and the lifting mechanism 5 drives the sampling rod 21 to move vertically downward until the sampling rod 21 is inserted into the mineral powder. When the sampling rod 21 hits the bottom of the carriage, the sampling rod 21 is lifted upward by the buffer mechanism and stops moving downward; the rotating mechanism 23 drives the sampling rod 21 to rotate to crush the mineral powder block and cut off the mineral powder, and the lifting mechanism 5 drives the sampling rod 21 to move vertically upward to leave the carriage; after the sampling is completed, the second sliding mechanism 7 drives the sampling rod 21 to move to the scraping mechanism 22 on the longitudinal rod 13, and the sampling rod 21 cooperates with the scraper 222 to scrape the mineral powder into the material tank 223 through the scraper 222;

[0044] Step 3: the sampling rod 21 moves to the next sampling position to perform sampling operation, and the sampling device repeats the sampling and scraping process of step 2 until the sampling device 2 completes the sampling operation of each sampling position;

[0045] Step 4: The sampling device 2 completes the sampling process, and the longitudinal rod 13 drives the sampling rod 21 to move to the corresponding position of the rod storage platform 42 of the sampling rod cleaning device 4. The sampling rod 21 moves to the rod storage platform 42 on the longitudinal rod 13, and the sampling rod 21 is placed on the rod storage platform 42, and the sampling device 2 replaces the cleaned sampling rod 21; the transfer mechanism 41 drives the used sampling rod 21 to pass through the high-pressure water cleaning box 45, the ultrasonic cleaning box 44, and the drying box 43 in sequence to perform the cleaning and drying process of the sampling rod 21; the sampling rod 21 completes the cleaning and drying process, and the transfer mechanism 41 drives the sampling rod 21 to be placed on the rod storage platform 42 for the next replacement; the longitudinal rod 13 drives the scraping mechanism 22 to move to the manipulator 31, and the manipulator 31 removes the material tank 223 of the scraping mechanism 22, and the manipulator 31 and take down the clean material can 223 from the material can rack 37 and place it on the scraping mechanism 22; the robot 31 pours the mineral powder in the two removed material cans 223 together and puts them on the mixing table 32 for crushing and mixing, the robot 31 reduces the mixed mineral powder on the electronic scale 33 until the weight requirement of the reduced sample is reached, and the robot 31 drives the reduced sample to be packaged and sprayed at the packaging inkjet printer 34; the robot 31 drives the mixed mineral powder to repeat the reduction and packaging process until the number of samples is packaged, and pours the remaining mineral powder into the discarded sample bucket 35 to wait for subsequent manual processing; the robot 31 places the material can 223 and moves it to the ultrasonic cleaning water tank 36 for cleaning, and the robot 31 drives the cleaned material can 223 to move to the material can rack 37 to wait for the next sample preparation.

[0046] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A mineral powder automatic sampling and sample preparation system, characterized by: include A detection frame is formed inside the detection frame, and a driving passage for the mineral powder vehicle to pass through is formed therein; the detection frame comprises a longitudinal rod, a light curtain detection mechanism, and a distance measuring mechanism, wherein the longitudinal rod is arranged above the driving passage, and the longitudinal rod can move forward and backward along the driving passage; the light curtain detection mechanism is installed on the detection frame to detect the outer contour of the mineral powder vehicle; a lifting mechanism is provided on the longitudinal rod, and the lifting mechanism can slide along the length direction of the longitudinal rod, and the distance measuring mechanism is installed on the lifting mechanism, and the distance measuring mechanism comprises a telescopic assembly and a laser distance measuring device arranged at the bottom of the telescopic assembly, and the telescopic assembly drives the laser distance measuring device to extend into the compartment of the mineral powder vehicle to detect the inner contour of the mineral powder vehicle; The sampling device performs sampling according to the sampling position determined by the detected outer and inner contours of the mineral powder vehicle; it includes a sampling rod arranged below the lifting mechanism and a scraping mechanism fixed at one end of the longitudinal rod, and the lifting mechanism can drive the sampling rod to move vertically into the mineral powder vehicle for sampling; the scraping mechanism includes a scraper and a material tank arranged below the scraper, the sampling rod corresponds to the scraper, the sampling rod moves toward the scraping mechanism on the longitudinal rod, and the mineral powder is scraped into the material tank through the scraper; The sample preparation device is arranged on one side of the detection frame. The sample preparation device includes a manipulator and an operating mechanism. The longitudinal rod drives the scraping mechanism to move to the manipulator. The manipulator grabs the material tank and performs the sample preparation process at the operating mechanism. The sampling rod cleaning device is arranged on the detection frame and includes a transfer mechanism. A rod storage platform and a cleaning mechanism are arranged in sequence below the transfer mechanism. The sampling rod moves toward the rod storage platform on the longitudinal rod. The sampling rod is placed on the rod storage platform and is driven by the transfer mechanism to the cleaning mechanism for cleaning. The detection frame also includes a safety device, which includes a floor scale arranged on the driving channel, anti-collision bars arranged on both sides of the driving channel, a gate assembly arranged at the rear end of the driving channel, and a speed bump arranged at the front end of the floor scale. The floor scale is tilted downward toward the end where the speed bump is arranged. The mineral powder vehicle passes through the gate assembly to identify the passage and drives to the floor scale. The speed bump is used to locate the stop position of the mineral powder vehicle. The detection frame further comprises a first sliding mechanism and two transverse rods, the two transverse rods are arranged in parallel and spaced apart, and the longitudinal rod is slidably arranged between the two transverse rods; the first sliding mechanism comprises a gear guide rail, a sliding member, and a transmission member, the gear guide rail is arranged on the opposite side of the two transverse rods, and the sliding member is arranged at both ends of the longitudinal rod; the sliding member is slidably arranged on the gear guide rail, the transmission member connects the sliding members at both ends of the longitudinal rod, and the transmission member drives the two sliding members to drive the longitudinal rod to slide on the gear guide rail; The sliding member includes a mounting plate, a pulley, and a gear. The pulley is provided in two rows, and the two rows of pulleys are arranged on the mounting plate along a vertical interval. The gear guide is arranged between the two rows of pulleys, and the two rows of pulleys can slide on the gear guide. The gear is arranged on the mounting plate, and a transmission groove for accommodating the gear is provided in the middle of the gear guide, and a rack matching the gear is provided in the transmission groove; the transmission member includes a motor and a transmission rod, and the transmission rod is connected to the gears of the sliding members at both ends of the longitudinal rod. The motor drives the gear to drive the two sliding members to slide on the gear guide through the transmission rod.

2. The automatic sampling and sample preparation system for mineral powder according to claim 1 is characterized in that: The light curtain detection mechanism is arranged on both sides of the driving channel, and the light curtain detection mechanism emits a light curtain parallel to the ground into the driving channel. The light curtain detection mechanism includes a first emission group and several second emission groups. The first emission group is arranged at the front end of the driving channel, and the second emission groups are arranged at intervals at the rear end of the driving channel. The front end of the mineral powder truck is located within the range of the light curtain emitted by the first emission group, and the rear end of the mineral powder truck is located within the range of the light curtain emitted by the second emission group.

3. The automatic sampling and sample preparation system for mineral powder according to claim 1 is characterized in that: The laser rangefinder includes a first emitting position and a second emitting position. The first emitting position is distributed around the laser rangefinder. The first emitting position emits a laser beam horizontally outward to measure the inner contour of the mineral powder car compartment. The second emitting position is set on the bottom surface of the laser rangefinder. The second emitting position emits a laser beam vertically to measure the distance between the laser rangefinder and the mineral powder in the mineral powder car compartment.

4. The automatic sampling and sample preparation system for mineral powder according to claim 1 is characterized in that: A second sliding mechanism is provided on the longitudinal rod, and the lifting mechanism is arranged on the second sliding mechanism. The second sliding mechanism includes a gear guide rail, a mounting plate, a pulley, a gear, and a motor. The gear guide rail is arranged on one side of the longitudinal rod, and the pulley is provided in two rows. The two rows of pulleys are arranged on the mounting plate along a vertical interval. The gear guide rail is arranged between the two rows of pulleys, and the two rows of pulleys can slide on the gear guide rail. The gear is arranged on the mounting plate. A transmission groove for accommodating the gear is provided in the middle of the gear guide rail, and a rack matching the gear is provided in the transmission groove; the motor is connected to the gear, and the motor drives the gear to drive the lifting mechanism to move on the longitudinal rod.

5. The automatic sampling and sample preparation system for mineral powder according to claim 1 is characterized in that: The operating mechanism includes a discarded sample barrel, a mixing table, an electronic scale, and a packaging inkjet printer which are sequentially arranged around the manipulator. The manipulator drives the material tank to pass through the mixing table, the electronic scale, and the packaging inkjet printer in sequence to reduce and package the mineral powder sampled in the material tank. The discarded sample barrel is used to place the discarded mineral powder.

6. The automatic sampling and sample preparation system for mineral powder according to claim 1 is characterized by: The transfer mechanism can move along the arrangement direction of the rod storage platform and the cleaning mechanism. The cleaning mechanism includes a high-pressure water cleaning box, an ultrasonic cleaning box, and a drying box. The high-pressure water cleaning box, the ultrasonic cleaning box, the drying box, and the rod storage platform are arranged in sequence. The transfer mechanism drives the sampling rod of the rod storage platform to pass through the high-pressure water cleaning box, the ultrasonic cleaning box, and the drying box in sequence to perform the cleaning and drying process of the sampling rod.

7. A method for automatic sampling and sample preparation of mineral powder, characterized in that: Based on the mineral powder automatic sampling and sample preparation system according to any one of claims 1 to 6, the method steps are as follows: Step 1: The light curtain detection mechanism emits a light curtain toward the driving channel. The mineral powder car enters the driving channel and is located in the light curtain. The light curtain measures the outer contour of the mineral powder car. The distance measuring mechanism is driven by the longitudinal rod and the lifting mechanism and is located above the mineral powder car compartment. The telescopic assembly drives the laser rangefinder to move vertically downward into the mineral powder car compartment. The laser rangefinder measures the inner contour of the mineral powder car compartment. A coordinate system is established for the location of the mineral powder car compartment based on the measurement data of the light curtain detection mechanism and the distance measuring mechanism, and several sampling positions are selected based on the coordinate system. Step 2: The sampling rod moves to the sampling position through the longitudinal rod, and the lifting mechanism drives the sampling rod to move vertically downward until the sampling rod is inserted into the mineral powder for sampling. After the sampling is completed, the sampling rod moves to the scraping mechanism on the longitudinal rod, and the sampling rod cooperates with the scraper to scrape the mineral powder into the material tank through the scraper. Step 3: the sampling rod moves to the next sampling position to perform sampling operation, and the sampling device repeats the sampling and scraping process of step 2 until the sampling device completes the sampling operation of each sampling position; Step 4: The sampling device completes the sampling process, the longitudinal rod drives the sampling rod to move to the corresponding position of the rod storage platform of the sampling rod cleaning device, the sampling rod moves to the rod storage platform on the longitudinal rod, the sampling rod is placed on the rod storage platform, and the sampling device replaces the cleaned sampling rod; the transfer mechanism drives the used sampling rod through the cleaning mechanism to perform the sampling rod cleaning process; the sampling rod completes the cleaning process, the transfer mechanism drives the sampling rod to be placed on the rod storage platform for next replacement; the longitudinal rod drives the scraping mechanism to move to the manipulator, the manipulator grabs the material tank of the scraping mechanism, and the manipulator drives the material tank through the operating mechanism to reduce and pack the mineral powder.

Images