A full-automatic batching and mixing integrated system for neodymium-iron-boron powder

Abstract

The present application relates to powder material automatic metering and batching technical field, disclose a kind of neodymium iron boron powder full-automatic batching mixing integrated system, comprising: three-dimensional layered steel structure platform is arranged, the steel structure platform is divided into three layers, two layers and a layer from top to bottom;Mixing assembly and discharging tank are arranged in a layer, the mixing assembly includes screw belt mixing platform arranged in a layer, vertical screw belt mixer is equipped on the screw belt mixing platform;The present application adopts three-dimensional layered steel structure platform layout, compact structure, can make full use of workshop space, simultaneously through full-process sealed docking operation mode, avoid neodymium iron boron powder leakage in batching mixing process, reduce oxidation and explosion risk;The whole batching, transfer, mixing process does not need manual direct operation, is automatically completed by RGV trolley cooperation each jacking docking mechanism, not only reduce manual labor intensity, also reduce human weighing error, improve batching accuracy and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automated metering and batching technology for powder materials, specifically to an integrated fully automated batching and mixing system for neodymium iron boron powder. Background Technology

[0002] In the production process of NdFeB permanent magnet materials, batching and mixing is a crucial step that determines the magnetic properties of the product. It requires precise weighing and uniform mixing of various powder raw materials according to the formula proportions, and some formulas also require the quantitative addition of liquid materials. Traditionally, NdFeB powder batching relies heavily on manual weighing and manual transfer, which is not only labor-intensive and inefficient but also prone to weighing errors. Furthermore, NdFeB powder is flammable, explosive, and easily oxidized, posing a high risk of dust leakage during manual operation and significant safety hazards.

[0003] Therefore, this application proposes a fully automated batching and mixing system for NdFeB powder with a compact structure and capable of achieving fully sealed and automated operation throughout the entire process. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automated batching and mixing system for neodymium iron boron powder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully automated batching and mixing system for NdFeB powder, comprising: A three-dimensional, layered steel structure platform, which is divided into three, two, and one layers from top to bottom; The upper docking mechanism and the buffer mechanism are arranged on three layers. The upper docking mechanism is used to dock with the raw material tank and receive the raw material powder. The buffer mechanism is connected to the upper docking mechanism to temporarily store the raw material powder. Multiple vibrating feeding mechanisms, tracks, and a first RGV trolley and a second RGV trolley that move along the tracks are arranged on the second floor. The first RGV trolley is equipped with a main metering component, and the second RGV trolley is equipped with a secondary metering component. The feed inlet of the vibrating feeding mechanism is connected to the discharge outlet of the buffer mechanism. The top of both the main metering component and the secondary metering component is equipped with a feed lifting docking mechanism that cooperates with the discharge outlet of the vibrating feeding mechanism. A mixing assembly and a feeding tank are arranged on the first floor. The mixing assembly includes a ribbon mixing platform arranged on the first floor. A vertical ribbon mixer is provided on the ribbon mixing platform. The feed inlet of the vertical ribbon mixer is provided with a feed lifting docking mechanism for sealing docking with the discharge outlet of the main metering assembly and / or the auxiliary metering assembly. The discharge outlet of the vertical ribbon mixer is provided with a discharge lifting docking mechanism for sealing docking with the feed inlet of the feeding tank.

[0006] The upper docking mechanism includes a first bracket for placing the raw material tank, a first support plate is provided on the inner side of the first bracket, a first lifting cylinder is provided at the end of the first support plate, a first lifting plate is provided at the output end of the first lifting cylinder, a first receiving port is provided at the center of the first lifting plate for sealing docking with the discharge port of the raw material tank, and a first telescopic tube is provided below the first receiving port for connecting with the inlet of the buffer mechanism. The first support has evenly distributed ball bearings on both sides of its surface for sliding the raw material tank back and forth. The first support has a guide positioning plate on its side and a pusher cylinder on its rear side. The pusher cylinder has a pusher block at its output end and a positioning groove for clamping the bottom crossbeam of the raw material tank on its top. The first support has a photoelectric sensor on its front side for limiting the position of the raw material tank. Each of the four legs of the first support is equipped with a first weighing sensor; A vibratory lifting cylinder is provided on one side in front of the first support. A vibrator is provided at the output end of the vibratory lifting cylinder. The vibratory lifting cylinder is used to drive the vibrator to lift upward so that the vibrator abuts against the side wall of the raw material tank.

[0007] The buffer mechanism includes a buffer chamber located below the upper docking mechanism. The top of the buffer chamber is provided with a powder inlet connected to the first telescopic tube, and the bottom of the buffer chamber is provided with a powder outlet connected to the inlet of the vibrating feeder mechanism. The top of the buffer chamber is sequentially equipped with a first exhaust valve, a first pneumatic valve, a first oxygen content detector, and a first air inlet valve. A pneumatic hammer is provided on one side of the buffer chamber, and a rotary level switch is provided on the other side of the buffer chamber.

[0008] The vibrating feeding mechanism includes a tubular vibrating feeder located below the powder outlet of the buffer silo. The feed inlet of the tubular vibrating feeder is connected to the powder outlet of the buffer silo. The discharge outlet of the tubular vibrating feeder is provided with a discharge pipe, which is installed on the second layer via a second bracket. The upper side of the feed pipe is provided with a second oxygen content detector, a second exhaust valve and a third air inlet valve in sequence, and the lower side of the feed pipe is provided with a second pneumatic valve and a fourth air inlet valve in sequence.

[0009] The main metering component includes a third bracket mounted on the first RGV trolley, a main metering tank on the inner side of the third bracket, and a second weighing sensor at the connection between the main metering tank and the third bracket on the outer side of the main metering tank. The auxiliary metering component includes a fourth bracket installed on the second RGV trolley, an auxiliary metering tank is provided on the inner side of the fourth bracket, and a third weighing sensor is provided at the connection between the auxiliary metering tank and the fourth bracket on the outer side; Both the main metering tank and the auxiliary metering tank are equipped with a feeding lifting docking mechanism at the top of their inlets, which cooperates with the discharge port of the vibrating feeder.

[0010] The system also includes a liquid filling assembly installed on the second floor. The liquid filling assembly includes a filling rack installed on the second floor, a liquid tank installed on the filling rack, and a filling port, an exhaust port, and an air inlet installed on the top of the liquid tank. A level gauge is installed inside the liquid tank, and a metering pump is installed inside the filling rack. A manual valve is installed on the pipeline between the input end of the metering pump and the output end of the liquid tank. The output end of the metering pump is connected to the vertical ribbon mixer through a pipeline.

[0011] It also includes a return tank located on the first floor, which is connected to the main metering component and / or the auxiliary metering component via a return pipe for recycling excess powder. The top of the return pipe is provided with a feed lifting docking mechanism for sealing docking with the discharge port of the main metering component and / or the auxiliary metering component, and the bottom of the return pipe is provided with a discharge lifting docking mechanism for sealing docking with the feed port of the return tank.

[0012] It also includes a weighing mechanism set on the first floor. The weighing mechanism includes a support frame, on which a weighing frame for placing the material tank is provided. A fourth weighing sensor is provided at each of the four corners between the weighing frame and the support frame.

[0013] The feeding lifting and docking mechanism includes a second lifting cylinder, a second lifting plate at the output end of the second lifting cylinder, a second receiving port at the center of the second lifting plate for sealing docking with the upper discharge port, and a second telescopic pipe below the second receiving port for connecting with the lower feed port.

[0014] The discharge lifting and docking mechanism includes a third lifting cylinder, a third lifting plate at the output end of the third lifting cylinder, a third receiving port at the center of the third lifting plate for sealing docking with the lower inlet, and a third telescopic pipe above the third receiving port for connecting with the upper discharge port.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention adopts a three-dimensional, layered steel structure platform layout, which is compact and can make full use of workshop space. At the same time, through the fully sealed docking operation method, leakage of NdFeB powder is avoided during the batching and mixing process, reducing the risk of oxidation and explosion. The entire batching, transfer and mixing process does not require direct manual operation. It is automatically completed by the RGV trolley in conjunction with various lifting and docking mechanisms, which not only reduces the intensity of manual labor, but also reduces human weighing errors and improves batching accuracy and production efficiency.

[0016] 2. In view of the flammable, explosive and easily oxidized characteristics of NdFeB powder, this invention is equipped with inert gas inlet valves and exhaust valves in various places, which can fill the entire batching space with inert gas for protection. Combined with real-time monitoring by an oxygen content detector, it further improves the safety of operation.

[0017] 3. This invention is equipped with a main and auxiliary dual metering component and a return tank, which can realize precise batching of different formula specifications, and can also recover excess powder to avoid raw material waste. It increases the adaptability of the system to different production needs, realizes the automated and sealed operation of the entire process of NdFeB powder batching and mixing, and effectively solves many problems existing in traditional manual batching. Attached Figure Description

[0018] Figure 1 This is an overall isometric view of the invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a side view of the entire invention; Figure 4 This is a schematic diagram of the axial side of the raw material tank of the present invention; Figure 5 This is a schematic front view of the raw material tank of the present invention; Figure 6 This is a schematic diagram of the docking mechanism of the present invention from the axial side. Figure 7 This is an isometric view of the cache mechanism of the present invention; Figure 8 This is a front view schematic diagram of the caching mechanism of the present invention; Figure 9 This is a schematic diagram of the isometric view of the vibrating feeder mechanism of the present invention; Figure 10 This is a top view schematic diagram of the vibrating feeder mechanism of the present invention; Figure 11 This is a schematic diagram of the track axle of the present invention; Figure 12 This is a schematic diagram of the axle side of the first RGV trolley of the present invention; Figure 13 This is a schematic diagram of the axle side of the second RGV trolley of the present invention; Figure 14 This is a schematic diagram of the mixing assembly of the present invention from an isometric perspective. Figure 15 This is a schematic diagram of the axial side of the feeding tank of the present invention; Figure 16 This is a schematic diagram of the axial side of the return tank of the present invention; Figure 17 This is a schematic diagram of the axle side of the refluxing mechanism of the present invention; Figure 18 This is a side view of the liquid filling assembly of the present invention.

[0019] In the diagram: 100, Steel structure platform; 110, Raw material tank; 120, Liquid filling assembly; 121, Filling rack; 122, Liquid tank; 123, Filling port; 124, Level gauge; 125, Exhaust port; 126, Air inlet; 127, Manual valve; 128, Metering pump; 130, Mixing assembly; 131, Ribbon mixing platform; 132, Vertical ribbon mixer; 140, Discharge tank; 150, Return tank; 151, Return pipe; 160, Re-weighing mechanism; 200, Upper docking mechanism. 201. First bracket; 202. First support plate; 203. First lifting cylinder; 204. First lifting plate; 205. First telescopic tube; 206. First receiving port; 207. Pushing cylinder; 208. Pushing block; 209. Positioning groove; 210. Ball bearing; 211. Guide positioning plate; 212. Photoelectric sensor; 213. First weighing sensor; 214. Vibration lifting cylinder; 215. Vibrator; 300. Buffer mechanism; 301. Buffer chamber; 302. Powder feeder 303. Powder outlet; 304. First exhaust valve; 305. First pneumatic valve; 306. First oxygen content detector; 307. First air inlet valve; 308. Pneumatic hammer; 309. Rotary paddle level switch; 400. Vibrating feeder mechanism; 401. Second support; 402. Feed pipe; 403. Tubular vibrating feeder; 404. Second oxygen content detector; 405. Second exhaust valve; 406. Second pneumatic valve; 407. Third air inlet valve; 408. Fourth air inlet valve. Valve; 500, Track; 510, First RGV trolley; 520, Main metering component; 521, Third support; 522, Main metering tank; 523, Second weighing sensor; 530, Second RGV trolley; 540, Auxiliary metering component; 541, Fourth support; 542, Auxiliary metering tank; 543, Third weighing sensor; 600, Feed lifting and docking mechanism; 601, Second lifting cylinder; 602, Second lifting plate; 603, Second receiving port; 700, Discharge lifting and docking mechanism. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figures 1-18 This invention provides a technical solution: a fully automated batching and mixing system for NdFeB powder, comprising: a three-dimensionally layered steel structure platform 100, which is divided into three layers, two layers, and one layer from top to bottom; a stacker crane is installed at the rear of the steel structure platform 100, which is used to automatically store and retrieve raw material tanks 110 filled with raw materials and empty raw material tanks, and can automatically complete the feeding and replenishment of raw material tanks and the recycling of empty tanks, without the need for manual transfer of raw material tanks 110. When the system is working, the stacker crane first transports the raw material tanks 110 loaded with raw materials to be batched to the upper docking mechanism 200.

[0022] A docking mechanism 200 and a buffer mechanism 300 are arranged on the third layer. The upper docking mechanism 200 is used to dock with the raw material tank 110 and receive raw material powder. The buffer mechanism 300 is connected to the upper docking mechanism 200 to temporarily store the raw material powder. Multiple vibrating feeders 400, a track 500, and a first RGV trolley 510 and a second RGV trolley 530 moving along the track 500 are arranged on the second layer. The first RGV trolley 510 is equipped with a main metering component 520, and the second RGV trolley 530 is equipped with a secondary metering component 540. The inlet of the vibrating feeder 400 is connected to the outlet of the buffer mechanism 300. The main metering component 520 and... The top of each auxiliary metering component 540 is provided with an inlet lifting docking mechanism 600 that cooperates with the discharge port of the vibrating feeder 400; a mixing component 130 and a discharge tank 140 are arranged on the first floor. The mixing component 130 includes a ribbon mixing platform 131 arranged on the first floor. A vertical ribbon mixer 132 is arranged on the ribbon mixing platform 131. The inlet of the vertical ribbon mixer 132 is provided with an inlet lifting docking mechanism 600 for sealing docking with the discharge port of the main metering component 520 and / or the auxiliary metering component 540. The discharge port of the vertical ribbon mixer 132 is provided with a discharge lifting docking mechanism 700 for sealing docking with the inlet of the discharge tank 140.

[0023] Specifically, when NdFeB powder needs to be mixed, the WMS system issues a formula instruction. The automated warehouse stacker moves the raw material tank 110 containing NdFeB powder to the docking mechanism 200 on the third layer. Then, the pusher cylinder 207 pushes the pusher block 208 to push the raw material tank 110 along the ball bearing 210 and the guide positioning plate 211 to the detection position of the photoelectric sensor 212 and then stops. Next, the first lifting cylinder 203 drives the first lifting plate 204 to lift upward, so that the first receiving port 206 and the discharge port of the raw material tank 110 are sealed and docked. At the same time, the vibration lifting cylinder 214 drives the vibrator 215 to lift upward and abut against the side wall of the raw material tank 110, completing the docking and positioning of the raw material tank 110. After docking, the powder in the raw material tank 110 enters the buffer chamber 301 of the lower buffer mechanism 300 through the first telescopic tube 205 for temporary storage. At the same time, the first weighing sensor 213 detects the weight of the raw material tank 110 in real time to obtain the actual weight of the output powder.

[0024] During feeding, the first RGV trolley 510 carries the main metering component 520 along the track 500 to the area below the corresponding vibrating feeder 400. The feeding lifting docking mechanism 600 at the top of the main metering component 520 lifts and seals with the feeding pipe 402 of the tubular vibrating feeder 403. The tubular vibrating feeder 403 starts and adds powder to the main metering tank 522. At the same time, the second weighing sensor 523 measures in real time. Feeding stops when the preset weight of the formula is reached. Then, the first RGV trolley 510 moves the main metering component 520, which has completed metering, to the top of the vertical ribbon mixer 132. After the feeding lifting docking mechanism 600 at the top of the vertical ribbon mixer 132 seals with the discharge port at the bottom of the main metering tank 522, the main metering tank 522 opens to discharge, discharging the metered powder into the vertical ribbon mixer 132.

[0025] For raw materials used in small quantities in the formula, the second RGV trolley 530 carries the auxiliary metering component 540 to complete the above-mentioned batching docking process. If the powder exceeds the formula weight after metering, the excess powder can be discharged into the return tank 150 through the return pipe 151 for recycling, avoiding raw material waste. After the powder batching is completed, the liquid dispensing component 120 directly discharges the corresponding dose of liquid into the vertical ribbon mixer 132 through the metering pump 128. Subsequently, the vertical ribbon mixer 132 starts to complete the mixing operation of NdFeB powder. After the mixing is completed, the discharge lifting docking mechanism 700 at the bottom of the vertical ribbon mixer 132 is sealed and docked with the inlet at the top of the feed tank 140, and the mixed material is discharged into the feed tank 140 for delivery, completing the entire batching and mixing process.

[0026] The upper docking mechanism 200 includes a first bracket 201 for placing the raw material tank 110. A first support plate 202 is provided inside the first bracket 201. A first lifting cylinder 203 is provided at the end of the first support plate 202. A first lifting plate 204 is provided at the output end of the first lifting cylinder 203. A first receiving port 206 is provided at the center of the first lifting plate 204 for sealing docking with the outlet of the raw material tank 110. A first telescopic tube 205 is provided below the first receiving port 206 for connecting with the inlet of the buffer mechanism 300. Ball bearings 210 for sliding back and forth of the raw material tank 110 are evenly distributed on both sides of the surface of the first bracket 201. Guides are provided on the sides of the first bracket 201. The positioning plate 211 and the first bracket 201 are provided with a pushing cylinder 207 on the rear side. The pushing cylinder 207 has a pushing block 208 at its output end. The pushing block 208 has a positioning groove 209 on its top for clamping the bottom crossbeam of the raw material tank 110. The first bracket 201 has a photoelectric sensor 212 on its front side for limiting the position of the raw material tank 110. The four legs of the first bracket 201 are each provided with a first weighing sensor 213. The first bracket 201 has a vibratory lifting cylinder 214 on one side in front of it. The vibratory lifting cylinder 214 has a vibrator 215 at its output end. The vibratory lifting cylinder 214 is used to drive the vibrator 215 to lift upward so that the vibrator 215 abuts against the side wall of the raw material tank 110.

[0027] Specifically, when the stacker crane of the automated warehouse moves the raw material can 110 containing NdFeB powder to the docking mechanism 200 on the third floor, the raw material can 110 is first moved to the rear end of the first support 201, and the positioning groove 209 on the top of the pusher block 208 is engaged with the crossbeam at the bottom of the raw material can 110. Then, the pusher cylinder 207 extends, pushing the pusher block 208 to drive the raw material can 110 to slide forward along the ball bearings 210 on the surface of the first support 201. Under the guidance of the guide positioning plate 211, the raw material can 110 maintains a stable sliding direction until the front end of the raw material can 110 triggers the photoelectric sensor 212. The photoelectric sensor 212 sends a signal to stop the pusher cylinder 207, completing the positioning of the raw material can 110 (at the same time, the discharge port at the bottom of the raw material can 110 is directly above the first receiving port 206). (Fang); then the first lifting cylinder 203 drives the first lifting plate 204 to lift upward, causing the first receiving port 206 to rise and press against the discharge port at the bottom of the raw material tank 110 to achieve a sealed connection. At the same time, the vibration lifting cylinder 214 drives the vibrator 215 to lift upward, so that the vibrator 215 is in close contact with the side wall of the raw material tank 110. During the discharge process, the vibrator 215 vibrates continuously to assist the powder in the raw material tank 110 to fall smoothly and avoid powder residue on the wall. At the same time, the first weighing sensor 213 collects the weight change of the raw material tank 110 in real time and accurately counts the total weight of the discharged powder. After the discharge is completed, the first lifting cylinder 203 and the vibration lifting cylinder 214 are reset, and the pushing cylinder 207 pushes out the empty raw material tank 110. The empty tank is then recovered by the automated warehouse stacker crane, completing the unloading operation of a single tank of raw materials.

[0028] The buffer mechanism 300 includes a buffer chamber 301 located below the upper docking mechanism 200. The top of the buffer chamber 301 is provided with a powder inlet 302 connected to the first telescopic tube 205, and the bottom of the buffer chamber 301 is provided with a powder outlet 303 connected to the inlet of the vibrating feeder 400. The top of the buffer chamber 301 is provided with a first exhaust valve 304, a first pneumatic valve 305, a first oxygen content detector 306, and a first air inlet valve 307 in sequence. A pneumatic hammer 308 is provided on one side of the buffer chamber 301, and a rotary level switch 309 is provided on the other side of the buffer chamber 301.

[0029] Specifically, before the powder in the raw material tank 110 is discharged into the buffer silo 301, the oxygen content inside the buffer silo 301 is detected by the first oxygen content detector 306. If the oxygen content exceeds the preset safety value, the first air inlet valve 307 is opened to fill in inert gas (nitrogen), and the first exhaust valve 304 is opened to discharge the original air in the silo. The first air inlet valve 307 and the first exhaust valve 304 are closed after the oxygen content detected by the first oxygen content detector 306 reaches the standard. The oxygen content will also be continuously monitored during the subsequent buffering and feeding process to ensure that the flammable and explosive NdFeB powder will not be oxidized or explode. After the powder is discharged into the buffer silo 301, the rotary paddle level switch 309 monitors the material level in the silo in real time. When the material level is too low after the powder is discharged, the upper docking mechanism 200 is automatically triggered to perform a replenishment operation. During the discharge process, the pneumatic hammer 308 can periodically knock on the side wall of the buffer silo 301 to avoid powder residue on the wall and ensure that the powder is completely discharged.

[0030] The vibrating feeding mechanism 400 includes a tubular vibrating feeder 403 located below the powder outlet 303 of the buffer silo 301. The feed inlet of the tubular vibrating feeder 403 is connected to the powder outlet 303 of the buffer silo 301. The discharge outlet of the tubular vibrating feeder 403 is provided with a discharge pipe 402, which is installed on the second layer through a second bracket 401. A second oxygen content detector 404, a second exhaust valve 405, and a third air inlet valve 407 are sequentially provided on the upper side of the discharge pipe 402, and a second pneumatic valve 406 and a fourth air inlet valve 408 are sequentially provided on the lower side of the discharge pipe 402.

[0031] Specifically, before feeding, the second pneumatic valve 406 is opened, and the third inlet valve 407 and the second exhaust valve 405 are opened simultaneously to introduce inert gas to replace the air in the feed pipe 402. After the oxygen content is detected by the second oxygen content detector 404 and meets the standard, the second exhaust valve 405 and the third inlet valve 407 are closed, and then the tubular vibrating feeder 403 is started to feed. During the feeding process, the fourth inlet valve 408 can intermittently introduce a small flow of inert gas to avoid powder blockage inside the feed pipe 402, while maintaining a low oxygen environment inside the system to ensure the safety of the feeding operation. Before reaching the preset weight of the formula, the feeding speed of the tubular vibrating feeder 403 is reduced in advance to avoid overfeeding and ensure metering accuracy.

[0032] The main metering component 520 includes a third bracket 521 mounted on the first RGV trolley 510. A main metering tank 522 is located inside the third bracket 521. A second weighing sensor 523 is located at the connection between the main metering tank 522 and the third bracket 521. The auxiliary metering component 540 includes a fourth bracket 541 mounted on the second RGV trolley 530. An auxiliary metering tank 542 is located inside the fourth bracket 541. A third weighing sensor 543 is located at the connection between the auxiliary metering tank 542 and the fourth bracket 541. The feed inlets at the top of both the main metering tank 522 and the auxiliary metering tank 542 are equipped with a feed lifting docking mechanism 600 that cooperates with the discharge port of the vibrating feeder 400.

[0033] Specifically, when the main metering tank 522 needs to weigh and dispense materials, the first RGV trolley 510 moves the main metering tank 522 to below the corresponding feed pipe 402. Then, the feeding lifting docking mechanism 600 at the top of the main metering tank 522 seals and docks the discharge port of the feed pipe 402 with the feed port at the top of the main metering tank 522. After feeding begins, the second weighing sensor 523 collects the total weight change of the main metering tank 522 in real time. When the feeding weight is close to the preset value of the formula, a signal is sent to reduce the feeding speed of the tubular vibrating feeder 403 to achieve slow feeding. Feeding stops immediately after the preset weight is reached, thus completing the accurate metering of large doses of raw materials. The bottom of the main metering tank 522 is also equipped with an openable sealed discharge valve. After moving to the feeding position of the vertical ribbon mixer 132, the discharge valve is opened to complete the discharge.

[0034] Specifically, when the auxiliary metering tank 542 needs to weigh and dispense materials, the second RGV trolley 530 moves the auxiliary metering tank 542 to below the feed pipe 402 of the corresponding small dose of raw material. The feeding lifting docking mechanism 600 at the top of the auxiliary metering tank 542 completes the sealing docking. The third weighing sensor 543 collects the weight change of the auxiliary metering tank 542 in real time. When the feeding is close to the preset value, the feeding speed is reduced for precise replenishment. Once the required weight of the formula is reached, the feeding is stopped immediately to complete the precise metering of the small dose of raw material. Subsequently, the material is moved by the second RGV trolley 530 to the feeding position of the vertical ribbon mixer 132 to complete the discharge. If the feeding is excessive during the metering process, the excess powder can be discharged into the return tank 150 through the return pipe 151 for recycling, so as not to cause waste of raw materials.

[0035] The main metering tank 522 and the auxiliary metering tank 542 are equipped with laser sensors on the feeding lifting docking mechanism 600. The laser sensors work in conjunction with the discharge port of the vibrating feeder mechanism 400 above to detect the deviation of the docking position in real time. When a positional deviation occurs, the stopping position of the first RGV trolley 510 or the second RGV trolley 530 is adjusted in time to ensure that the feeding lifting docking mechanism 600 can be accurately aligned and sealed with the discharge port of the vibrating feeder mechanism 400, so as to avoid powder leakage caused by misalignment.

[0036] The system also includes a liquid filling assembly 120 located on the second floor. The liquid filling assembly 120 includes a filling rack 121 located on the second floor. A liquid tank 122 is provided on the filling rack 121. The top of the liquid tank 122 is provided with a filling port 123, an exhaust port 125, and an air inlet 126 in sequence. A level gauge 124 is provided inside the liquid tank 122. A metering pump 128 is provided inside the filling rack 121. A manual valve 127 is provided on the pipeline between the input end of the metering pump 128 and the output end of the liquid tank 122. The output end of the metering pump 128 is connected to the vertical ribbon mixer 132 through a pipeline.

[0037] Specifically, before adding liquid, inert gas can be introduced into the liquid tank 122 through the air inlet 126 to maintain a low-oxygen environment. The liquid level gauge 124 monitors the liquid level in the tank in real time. When the liquid level is too low, liquid can be added through the liquid inlet 123. The exhaust port 125 is used to discharge excess gas in the tank during the replenishment process. During the filling operation, the manual valve 127 is opened and the metering pump 128 is started. According to the liquid dosage preset in the formula, the metering pump 128 accurately outputs the corresponding volume of liquid and discharges it directly into the vertical ribbon mixer 132 below, completing the accurate filling of liquid. No manual contact with liquid is required throughout the process, ensuring operational safety and filling accuracy.

[0038] The system also includes a return tank 150 located on the first floor. The return tank 150 is connected to the main metering component 520 and / or the auxiliary metering component 540 via a return pipe 151 for recycling excess powder. The top of the return pipe 151 is equipped with an inlet lifting and docking mechanism 600 for sealing docking with the outlet of the main metering component 520 and / or the auxiliary metering component 540, and the bottom of the return pipe 151 is equipped with an outlet lifting and docking mechanism 700 for sealing docking with the inlet of the return tank 150. Specifically, when there is excess powder after the main metering tank 522 or the auxiliary metering tank 542 has completed metering, the corresponding RGV trolley moves the metering tank above the return pipe 151. The inlet lifting and docking mechanism 600 at the top of the return pipe 151 lifts and seals docks with the outlet of the metering tank. Then, the metering tank opens its outlet valve to discharge the excess powder into the return tank 150 for storage. Meanwhile, the return tank 150 is also pre-filled with inert gas to maintain a low-oxygen environment, ensuring the safe storage of the recycled powder.

[0039] The system also includes a weighing mechanism 160 located on the first floor. The weighing mechanism 160 includes a support frame with a weighing rack for placing the material tank. A fourth weighing sensor is installed at each of the four corners between the weighing rack and the support frame. Specifically, after the batching is completed, the feeding tank 140 can be moved to the weighing mechanism 160. The entire feeding tank 140 is placed on the weighing rack. After the fourth weighing sensor collects the total weight, the weight of the feeding tank itself is subtracted to obtain the total weight of the mixed material. The actual total weight is compared with the preset total weight in the formula to check whether there are any errors in the batching and mixing process.

[0040] The feeding lifting and docking mechanism 600 includes a second lifting cylinder 601, a second lifting plate 602 at the output end of the second lifting cylinder 601, a second receiving port 603 at the center of the second lifting plate 602 for sealing docking with the upper discharge port, and a second telescopic tube below the second receiving port 603 for connecting with the lower feeding port. Specifically, when docking is required, the second lifting cylinder 601 drives the second lifting plate 602 to lift upward, causing the second receiving port 603 to rise and press against the upper discharge port. The sealing at the interface is achieved by the clamping force. With the extension and retraction of the second telescopic tube, sealing docking between equipment of different heights can be completed, preventing powder leakage in the docking gap, and maintaining a sealed low-oxygen environment inside the system. After docking is completed, the discharge operation can be started. After discharge is completed, the second lifting cylinder 601 drives the second lifting plate 602 to reset, thus releasing the docking.

[0041] The discharge lifting and docking mechanism 700 includes a third lifting cylinder, a third lifting plate at the output end of the third lifting cylinder, a third receiving port at the center of the third lifting plate for sealing docking with the lower feed inlet, and a third telescopic tube above the third receiving port for connecting with the upper discharge port. Specifically, when docking is required, the third lifting cylinder drives the third lifting plate to lift downwards, causing the third receiving port to descend and press against the lower feed inlet. The interface is sealed by the clamping force. With the extension and retraction of the third telescopic tube, the sealing docking between equipment at different heights is completed, preventing powder leakage and maintaining a sealed low-oxygen environment. After docking is completed, the unloading operation can be started. After unloading is completed, the third lifting cylinder drives the third lifting plate to reset, and the docking can be released.

[0042] Among them, the inner walls of the raw material tank 110, vertical ribbon mixer 132, feeding tank 140, return tank 150, buffer silo 301, main metering tank 522 and auxiliary metering tank 542 are all smoothed, and the small amount of powder remaining on the inner wall will not affect the mixing ratio of the ingredients.

[0043] Working Principle: During operation, this system communicates with the automated warehouse WMS system and RGV scheduling system to obtain the target ingredient formula. Based on the formula requirements, the automated warehouse stacker crane removes the raw material tank 110 containing the corresponding type of NdFeB powder from the raw material automated warehouse and transfers it to the upper docking mechanism 200 on the three-layer steel structure platform 100. The pushing cylinder 207 drives the pushing block 208, causing its top positioning groove 209 to engage with the crossbeam at the bottom of the raw material tank 110, and pushes the raw material tank 110 forward along the ball bearing 210 and guide positioning plate 211 until it triggers the front photoelectric sensor 212, completing precise positioning. Subsequently, the first lifting cylinder 203 drives the first lifting plate 204 to lift upwards, opening the first receiving port... 206 is tightly connected to the discharge port of the raw material tank 110 to achieve a sealed connection; at the same time, the vibrating lifting cylinder 214 drives the vibrator 215 to lift upward, so that it is close to the side wall of the raw material tank 110; after the connection is completed, the system fills the buffer mechanism 300 and the connecting pipeline with inert gas nitrogen through the first air inlet valve 307, and monitors the oxygen content through the oxygen content detector. After the oxygen content drops to the safe value ≤1%, the discharge valve of the raw material tank 110 is opened, and the powder falls into the buffer chamber 301 of the buffer mechanism 300 through the first telescopic pipe 205 for temporary storage; during the unloading process, the vibrator 215 vibrates continuously to assist the unloading, and the first weighing sensor 213 detects the weight change of the raw material tank 110 in real time to accurately count the actual weight of the discharged powder.

[0044] Meanwhile, the buffer chamber 301 of the buffer mechanism 300 has undergone inert gas replacement through the first air inlet valve 307 and the first exhaust valve 304 before feeding. The first oxygen content detector 306 monitors the oxygen content in the chamber in real time to ensure that the powder is in a low-oxygen safe environment during temporary storage. The pneumatic hammer 308 knocks on the chamber wall periodically to prevent powder from sticking to the wall and remaining. The rotary paddle level switch 309 monitors the material level in real time and automatically triggers the upper docking mechanism 200 to replenish the material when the material level is too low.

[0045] Then, the first RGV trolley 510, carrying the main metering component 520, moves along the track 500 to below the corresponding vibrating feeder 400. The feeding lifting docking mechanism 600 on the top of the main metering tank 522 is lifted, sealing the second receiving port 603 with the discharge port of the discharge pipe 402. After docking, nitrogen is first replaced through the third air inlet valve 407 and the second exhaust valve 405. After the second oxygen content detector 404 confirms that the oxygen content meets the standard, the tubular vibrating feeder 403 is turned on to feed material into the main metering tank 522. In the initial feeding stage, high-frequency rapid coarse feeding is used. When the second weighing... When sensor 523 detects that the weight is close to the preset weight, the system automatically reduces the frequency of the tubular vibrating feeder 403, switches to low-frequency precision feeding, and stops feeding immediately after reaching the preset weight, achieving a comprehensive measurement error of ≤200g for large doses of raw materials. For small doses of raw materials, the second RGV trolley 530 carries the auxiliary metering component 540 to complete the precise measurement in the same way. If the measurement exceeds the tolerance, the RGV trolley can move the metering tank to the return pipe 151, and discharge the excess powder into the return tank 150 for recycling through the feed lifting docking mechanism 600, avoiding raw material waste.

[0046] Meanwhile, in the liquid filling assembly 120, the liquid tank 122 maintains a low-oxygen environment through the air inlet 126, and the liquid level gauge 124 monitors the liquid level in real time. When liquid filling is required, the metering pump 128 is started according to the formula dosage. The metering pump 128 draws a precise volume of liquid from the liquid tank 122 and delivers it directly to the vertical ribbon mixer 132 through the pipeline. The metering accuracy can reach ±20g.

[0047] Next, after the powder and liquid materials are metered according to the formula, the first RGV trolley 510 and the second RGV trolley 530, carrying the main metering tank 522 and the auxiliary metering tank 542 respectively, move to above the feed inlet of the vertical ribbon mixer 132. The feed lifting and docking mechanism 600 lifts again to seal the discharge port of the metering tank with the feed inlet of the mixer. After nitrogen purging, the discharge valve of the metering tank is opened to feed the powder into the vertical ribbon mixer 132. Subsequently, the vertical ribbon mixer 132 starts stirring, and the mixing time is set according to the formula (e.g., 40 minutes). During the mixing process, the oxygen content is monitored in real time and maintained at ≤1%. After mixing is completed, the RGV trolley moves the empty discharge tank 140 to below the discharge port of the mixer. The discharge lifting and docking mechanism 700 lifts and docks the tank. After nitrogen purging, the discharge valve of the mixer is opened to unload the finished powder into the discharge tank 140.

[0048] Finally, the RGV trolley transfers the feeding tank 140 containing the finished powder to the re-weighing mechanism 160. The feeding tank 140 is placed on the weighing frame, and the fourth weighing sensor collects the total weight. The actual weight of the finished product is obtained by subtracting the tare weight of the feeding tank 140. This weight is then compared with the theoretical total weight of the formula to check for errors in the mixing process. Once confirmed to be correct, the RGV trolley transfers the feeding tank 140 to the next process or the finished product area of ​​the automated warehouse.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automated batching and mixing system for NdFeB powder, characterized in that, include: A three-dimensional, layered steel structure platform (100) is divided into three layers, two layers and one layer from top to bottom; An upper docking mechanism (200) and a buffer mechanism (300) are provided on the three layers. The upper docking mechanism (200) is used to dock with the raw material tank (110) and receive raw material powder. The buffer mechanism (300) is connected to the upper docking mechanism (200) to temporarily store the raw material powder. Multiple vibrating feeders (400), a track (500), and a first RGV trolley (510) and a second RGV trolley (530) moving along the track (500) are arranged on the second floor. The first RGV trolley (510) is equipped with a main metering component (520), and the second RGV trolley (530) is equipped with a secondary metering component (540). The feed inlet of the vibrating feeder (400) is connected to the discharge outlet of the buffer mechanism (300). The top of the main metering component (520) and the secondary metering component (540) are equipped with a feed lifting docking mechanism (600) that cooperates with the discharge outlet of the vibrating feeder (400). A mixing assembly (130) and a feeding tank (140) are arranged on the first floor. The mixing assembly (130) includes a ribbon mixing platform (131) arranged on the first floor. A vertical ribbon mixer (132) is provided on the ribbon mixing platform (131). The feed inlet of the vertical ribbon mixer (132) is provided with a feed lifting docking mechanism (600) for sealing docking with the discharge outlet of the main metering assembly (520) and / or the auxiliary metering assembly (540). The discharge outlet of the vertical ribbon mixer (132) is provided with a discharge lifting docking mechanism (700) for sealing docking with the feed inlet of the feeding tank (140). The upper docking mechanism (200) includes a first bracket (201) for placing the raw material tank (110), a first support plate (202) is provided on the inner side of the first bracket (201), a first lifting cylinder (203) is provided at the end of the first support plate (202), a first lifting plate (204) is provided at the output end of the first lifting cylinder (203), a first receiving port (206) is provided at the center of the first lifting plate (204) for sealing docking with the discharge port of the raw material tank (110), and a first telescopic tube (205) is provided below the first receiving port (206) for connecting with the inlet of the buffer mechanism (300). The first bracket (201) has several balls (210) on both sides of its surface for sliding the raw material tank (110) back and forth. The first bracket (201) has a guide positioning plate (211) on its side. The first bracket (201) has a pusher cylinder (207) on its rear side. The pusher cylinder (207) has a pusher block (208) at its output end. The pusher block (208) has a positioning groove (209) on its top for clamping the bottom crossbeam of the raw material tank (110). The first bracket (201) has a photoelectric sensor (212) on its front side for limiting the position of the raw material tank (110). The first support (201) is equipped with a first weighing sensor (213) at each of its four legs; A vibratory lifting cylinder (214) is provided on one side in front of the first support (201). The output end of the vibratory lifting cylinder (214) is provided with a vibrator (215). The vibratory lifting cylinder (214) is used to drive the vibrator (215) to lift upward, so that the vibrator (215) abuts against the side wall of the raw material tank (110).

2. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: The buffer mechanism (300) includes a buffer chamber (301) disposed below the upper docking mechanism (200). The top of the buffer chamber (301) is provided with a powder inlet (302) connected to the first telescopic tube (205), and the bottom of the buffer chamber (301) is provided with a powder outlet (303) connected to the inlet of the vibrating feeder (400). The top of the buffer chamber (301) is provided with a first exhaust valve (304), a first pneumatic valve (305), a first oxygen content detector (306), and a first air inlet valve (307) in sequence. A pneumatic hammer (308) is provided on one side of the buffer chamber (301), and a rotary level switch (309) is provided on the other side of the buffer chamber (301).

3. The fully automated batching and mixing system for NdFeB powder according to claim 2, characterized in that: The vibrating feeding mechanism (400) includes a tubular vibrating feeder (403) disposed below the powder outlet (303) of the buffer silo (301). The feed inlet of the tubular vibrating feeder (403) is connected to the powder outlet (303) of the buffer silo (301). The discharge outlet of the tubular vibrating feeder (403) is provided with a discharge pipe (402). The discharge pipe (402) is installed on the second layer through a second bracket (401). The upper side of the feed pipe (402) is provided with a second oxygen content detector (404), a second exhaust valve (405) and a third air inlet valve (407), and the lower side of the feed pipe (402) is provided with a second pneumatic valve (406) and a fourth air inlet valve (408).

4. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: The main metering component (520) includes a third bracket (521) mounted on the first RGV trolley (510), a main metering tank (522) is provided inside the third bracket (521), and a second weighing sensor (523) is provided at the connection between the main metering tank (522) and the third bracket (521). The auxiliary metering component (540) includes a fourth bracket (541) mounted on the second RGV trolley (530), an auxiliary metering tank (542) is provided on the inner side of the fourth bracket (541), and a third weighing sensor (543) is provided at the connection between the auxiliary metering tank (542) and the fourth bracket (541). The main metering tank (522) and the auxiliary metering tank (542) are both equipped with a feeding lifting docking mechanism (600) at the top of the feeding port that cooperates with the discharge port of the vibrating feeding mechanism (400).

5. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: It also includes a liquid filling assembly (120) set on the second floor. The liquid filling assembly (120) includes a filling rack (121) set on the second floor. The filling rack (121) is provided with a liquid tank (122). The top of the liquid tank (122) is provided with a liquid filling port (123), an exhaust port (125) and an air inlet (126) in sequence. The liquid tank (122) is provided with a liquid level gauge (124) inside. The filling rack (121) is provided with a metering pump (128) inside. The metering pump (128) is provided with a manual valve (127) on the pipeline between the input end of the metering pump (128) and the output end of the liquid tank (122). The output end of the metering pump (128) is connected to the vertical ribbon mixer (132) through a pipeline.

6. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: It also includes a return tank (150) located on the first floor, which is connected to the main metering component (520) and / or the auxiliary metering component (540) via a return pipe (151) for recycling excess powder. The top of the return pipe (151) is provided with a feed lifting docking mechanism (600) for sealing docking with the discharge port of the main metering component (520) and / or the auxiliary metering component (540), and the bottom of the return pipe (151) is provided with a discharge lifting docking mechanism (700) for sealing docking with the feed port of the return tank (150).

7. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: It also includes a weighing mechanism (160) set on the first floor. The weighing mechanism (160) includes a support frame, on which a weighing frame for placing the material tank is provided. A fourth weighing sensor is provided at each of the four corners between the weighing frame and the support frame.

8. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: The feeding lifting and docking mechanism (600) includes a second lifting cylinder (601), the output end of the second lifting cylinder (601) is provided with a second lifting plate (602), the center of the second lifting plate (602) is provided with a second receiving port (603) for sealing docking with the discharge port of the upper equipment, and a second telescopic pipe is provided below the second receiving port (603) for connecting with the lower feeding port.

9. The fully automated batching and mixing system for NdFeB powder according to claim 1, characterized in that: The discharge lifting docking mechanism (700) includes a third lifting cylinder, the output end of the third lifting cylinder is provided with a third lifting plate, the center of the third lifting plate is provided with a third receiving port for sealing docking with the feed port of the equipment below, and a third telescopic pipe is provided above the third receiving port for connecting with the discharge port above.

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