A smart feeding mechanism based on metal powder grinding.

Abstract

This invention discloses an intelligent feeding mechanism for metal powder grinding, relating to the field of metal powder processing technology. This automated feeding mechanism, through a positive correlation between the material accumulation pressure in the raw material transition pipe and the material quantity in the grinding equipment, uses an arc-shaped load-bearing plate as a material weight sensing carrier to automatically trigger the engagement and switching of the dynamic feeding speed control component: when there is excessive material in the grinding equipment and the pressure in the raw material transition pipe exceeds a threshold, the control component switches to a deceleration engagement state, reducing the auger speed and decreasing the feeding; when material is consumed and the pressure in the transition pipe falls below the threshold, the control component switches to a speed-increasing engagement state, increasing the auger speed to replenish the material. This design ensures that the material quantity in the grinding equipment is always maintained within a preset process adaptation threshold range, completely avoiding the "overloading" malfunction caused by traditional fixed-speed feeding, while also preventing the problem of low grinding efficiency due to insufficient material, ensuring continuous and stable grinding operations.

Description

Technical Field

[0001] This invention relates to the field of metal powder processing technology, specifically to an intelligent feeding mechanism based on metal powder grinding processing. Background Technology

[0002] Metal powder grinding is a powder processing technology that uses the collision between steel balls and metal raw materials inside a grinding cylinder to crush and refine the raw materials to the target particle size. It is widely used in powder metallurgy, 3D printing, cemented carbide, magnetic materials and other fields. The core of this process is to match the grinding equipment and process parameters to ensure the uniformity of powder particle size distribution, purity and morphology, while taking into account production efficiency and cost.

[0003] Currently, the feeding mechanisms widely used in metal powder grinding production are mostly fixed-speed feeding structures. Raw materials are transported into the grinding equipment through an auger or conveyor belt at a constant speed. This type of feeding method cannot dynamically adjust the feeding speed according to the real-time material quantity in the grinding equipment. When the material in the grinding equipment is consumed slowly, the raw material is prone to stagnation and accumulation at the feed inlet, causing the equipment to "bulge" and forcing the grinding process to be interrupted. When the material in the grinding equipment is consumed rapidly, the fixed feeding speed makes it difficult to replenish the material in time, resulting in insufficient material in the grinding chamber and frequent occurrences of empty grinding of steel balls, which not only reduces grinding efficiency but also aggravates the wear of equipment parts. Secondly, existing technologies for detecting the amount of material inside grinding equipment often involve inserting sensors directly into the rotating grinding chamber. This method is highly susceptible to mechanical interference from the rotation of the grinding equipment, leading to decreased sensor accuracy and shortened lifespan. Furthermore, in dusty grinding environments, electronically controlled sensors are prone to signal interference, short circuits, and other malfunctions, resulting in high maintenance costs.

[0004] Therefore, this invention proposes an intelligent feeding mechanism based on metal powder grinding to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an intelligent feeding mechanism for metal powder grinding. This solves the problems of commonly used feeding mechanisms in metal powder grinding production, which are mostly fixed-speed types, using augers or conveyor belts at a constant speed. These mechanisms cannot dynamically adjust the speed based on the real-time material quantity within the grinding equipment. When material consumption is slow, material tends to accumulate at the inlet, causing equipment "bloating" and interrupting the process. Conversely, when material consumption is fast, timely replenishment is difficult, resulting in insufficient material in the chamber and empty grinding of the steel balls, reducing efficiency and accelerating equipment wear. Furthermore, material quantity detection often relies on sensors directly inserted into the rotating chamber, which is susceptible to mechanical interference, limiting accuracy and lifespan. In dusty environments, electrical control sensors are also prone to signal interference and short circuits, leading to high maintenance costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent feeding mechanism based on metal powder grinding, comprising a metal powder grinding device, and further comprising: An adaptive feeding control mechanism is fixed to the feed side of the metal powder grinding equipment by a mounting bracket. The adaptive feeding control mechanism dynamically adjusts the feeding speed based on the amount of metal powder raw material in the metal powder grinding equipment and the material retention and accumulation pressure in its own cavity. When the metal powder is consumed during grinding in the metal powder grinding equipment, the material retention in the adaptive feeding control mechanism decreases, and the accumulation pressure is lower than the preset threshold, the feeding speed is automatically increased to replenish the material. When there is excessive metal powder in the metal powder grinding equipment, the material cannot enter the rotary grinding zone in time and forms a retention accumulation in the cavity of the adaptive feeding control mechanism, and the accumulation pressure is higher than the preset threshold, the feeding speed is automatically reduced to reduce the feed amount. A rotary joint is rotatably positioned between the feed side of the metal powder grinding equipment and the feeding side of the adaptive feeding control mechanism, and is used to feed metal powder raw materials from the stationary adaptive feeding control mechanism into the rotating metal powder grinding equipment. The feeding component is located above the adaptive feeding control mechanism and is used to link with the dynamic feeding speed of the adaptive feeding control mechanism to increase or decrease the supply speed of metal powder raw materials into the adaptive feeding control mechanism to avoid the accumulation of metal raw materials.

[0007] Furthermore, the adaptive feeding control mechanism includes a raw material transition tube, which is connected to the inner cavity of the metal powder grinding equipment via a rotary joint to correlate the amount of metal powder raw material in the metal powder grinding equipment with the amount of raw material in the inner cavity of the raw material transition tube. A transmission box is fixedly installed at the end of the raw material transition tube away from the metal powder grinding equipment, and a protective box assembly is fixedly installed at the bottom of the raw material transition tube. An auger is also rotatably installed inside the raw material transition tube via a bracket, and a servo motor is fixedly installed on the outer wall of the transmission box.

[0008] Furthermore, the output shaft of the servo motor rotates through the transmission box and is connected to a dynamic feeding speed control component. This component adjusts the fixed rotation speed of the servo motor based on the material accumulation pressure signal in the raw material transition tube, thereby driving the auger to push the metal powder raw material. This ensures that the amount of metal powder in the metal powder grinding equipment is always maintained within the preset process adaptation threshold range. The protective box assembly is also equipped with a material weight sensing component for sensing the amount of metal powder raw material in the raw material transition tube. The bottom of the inner cavity of the raw material transition tube is provided with a second lifting slide for the lifting and lowering movement of the material weight sensing component. The feeding component and the dynamic feeding speed control component are connected by a toothed belt. A horizontal plate is also fixedly installed on the inner wall of the transmission box, and a long strip-shaped limiting groove is provided on the top of the horizontal plate.

[0009] Furthermore, the protective box assembly includes a protective box body, and a first lifting slide groove is provided on the side wall of the protective box body. Limiting blocks for restricting the downward movement of the weight sensing component are fixedly provided on both sides of the inner wall of the first lifting slide groove.

[0010] Furthermore, the dynamic control component for feeding speed includes a drive shaft connected to the output shaft of a servo motor via a coupling. A first drive gear, a second drive gear, and a first transition gear are fixedly sleeved on the outer wall of the drive shaft. The first transition gear is located between the first drive gear and the second drive gear. A transmission shaft is rotatably arranged below the drive shaft. A first driven gear meshing with the second drive gear is rotatably sleeved on one side of the outer wall of the transmission shaft, and a second driven gear meshing with the first drive gear is rotatably sleeved on the other side of the outer wall. A first driven gear ring is fixedly arranged on the side wall of the first driven gear near the second driven gear, and a second driven gear ring is fixedly arranged on the side wall of the second driven gear near the first driven gear. A speed adjustment unit is also arranged on the outer wall of the transmission shaft, located between the first driven gear and the second driven gear.

[0011] Furthermore, the speed adjustment unit includes a spline fixedly sleeved on the outer wall of the transmission shaft and located between the first driven gear and the second driven gear. Limiting rings are fixedly provided at both ends of the spline. A spline sleeve is slidably sleeved on the outer wall of the spline. A first driving gear ring and a second driving gear ring are fixedly provided at both ends of the spline sleeve, and a second transition gear that cooperates with the first transition gear is fixedly sleeved at the middle position of the spline sleeve. Both ends of the teeth of the first transition gear and the second transition gear are provided with arc transition angles to facilitate smooth meshing of the first transition gear and the second transition gear. When the spline sleeve slides along the outer wall of the spline, the first driving gear ring can mesh with the first driven gear ring or the second driving gear ring can mesh with the second driven gear ring. At other times, the first transition gear and the second transition gear mesh with each other. A rotatable actuating ring is also rotatably fitted on the outer wall of the spline sleeve. A actuating rod is fixedly installed at the bottom of the actuating ring. A first wedge block and a second wedge block are fixedly installed on both sides of the outer wall of the actuating rod, respectively. A third drive gear is fixedly fitted on one side of the outer wall of the transmission shaft. The outer diameter of the first drive gear is smaller than that of the second driven gear. When the second drive gear and the second driven gear mesh, the relative speed of the transmission shaft is reduced. The outer diameter of the second drive gear is larger than that of the first driven gear. When the first drive gear and the first driven gear mesh, the speed of the transmission shaft is increased.

[0012] Furthermore, the material weight sensing component includes an arc-shaped load-bearing plate that is sealed and slidably disposed within the second lifting groove. Multiple lifting rods are uniformly fixedly disposed at the bottom of the arc-shaped load-bearing plate. The bottom end of each lifting rod slides through the raw material transition pipe and the protective box assembly and extends to the outside. A long rod is fixedly sleeved on the outer wall of the multiple lifting rods and located inside the protective box assembly. A spring is slidably sleeved on the outer wall of the lifting rod and located between the long rod and the inner wall of the protective box assembly. A first-speed drive unit and a second-speed drive unit are respectively disposed on one side of the top of the long rod.

[0013] Furthermore, the first transmission drive unit includes a first vertical plate fixedly mounted on the top of the long rod, and a first guide wheel is rotatably mounted on the side wall of the first vertical plate near the second transmission drive unit. The second transmission drive unit includes a second vertical plate fixedly mounted on the top of the long rod, and a second guide wheel is rotatably mounted on the side wall of the second vertical plate opposite to the first guide wheel. The first guide wheel and the second guide wheel slide along the slope surface of the first wedge block and the second wedge block, respectively.

[0014] Furthermore, the feeding assembly includes a hopper and a conveying conduit fixedly disposed at its bottom. A feeding pipe is fixedly disposed at the bottom end of the conveying conduit, and a discharge notch for unloading is opened at the bottom of the feeding pipe. A rotating shaft is also rotatably disposed inside the feeding pipe. Multiple blades are evenly fixedly disposed on the outer wall of the rotating shaft, and the end of each blade away from the rotating shaft is sealed and slidably disposed on the inner wall of the feeding pipe.

[0015] This invention provides an intelligent feeding mechanism based on metal powder grinding. Compared with the prior art, it has the following advantages: 1. An intelligent feeding mechanism for metal powder grinding, which establishes a positive correlation between the material accumulation pressure in the raw material transition pipe and the material quantity in the grinding equipment. Using an arc-shaped load-bearing plate as a material weight sensing carrier, the mechanism automatically triggers the engagement and switching of the dynamic feeding speed control component: when there is excessive material in the grinding equipment and the pressure in the raw material transition pipe exceeds a threshold, the control component switches to a deceleration engagement state, reducing the auger speed and decreasing the feeding; when material is depleted and the pressure in the transition pipe falls below the threshold, the control component switches to a speed-increasing engagement state, increasing the auger speed to replenish the material. This design ensures that the material quantity in the grinding equipment is always maintained within a preset process adaptation threshold range, completely avoiding the "overloading" malfunction caused by traditional fixed-speed feeding, while also preventing low grinding efficiency due to insufficient material, thus ensuring continuous and stable grinding operations. Because the amount of material in the grinding equipment is always at the optimal threshold of the process, the "throwing-falling" grinding cycle of the steel balls on the metal powder remains stable, which effectively ensures that the grinding particle size of the metal powder is uniform and reduces the production of defective products caused by fluctuations in the amount of material. At the same time, the continuous and stable feeding mode avoids production stoppages caused by equipment failure or material shortage, and improves the overall grinding production efficiency.

[0016] 2. An intelligent feeding mechanism based on metal powder grinding, wherein the material weight sensing component indirectly senses the material state inside the grinding equipment by detecting the material accumulation pressure in the raw material transition pipe, rather than directly inserting into the rotating grinding equipment for detection. This design completely avoids the risks of mechanical collision and wear on the sensing component caused by the rotation of the grinding equipment, and solves the technical pain points of easy damage to sensing elements and easy interference of detection signals in traditional direct detection methods, significantly improving sensing accuracy and the overall service life of the equipment.

[0017] 3. An intelligent feeding mechanism based on metal powder grinding and processing, which achieves power linkage between the feeding speed dynamic control component and the feeding component through a toothed belt. The increase or decrease of the feeding speed will synchronously drive the feeding gear of the feeding component to increase or decrease speed: when the auger slows down to feed, the blade shaft of the feeding component slows down synchronously, and the amount of material fed into the raw material transition tube per unit time is reduced accordingly; when the auger speeds up to replenish material, the feeding component increases the feeding amount synchronously. This linkage design avoids the problem of material stagnation or material interruption in the transition tube caused by the mismatch between the feeding and feeding speeds, improves the smoothness of material conveying, and reduces the probability of material blockage.

[0018] 4. An intelligent feeding mechanism based on metal powder grinding, wherein the first and second transition gears precisely mesh during speed increase or decrease shifting, and automatically disengage after the main drive gear ring is fully engaged, forming a seamless switching between "transition drive and main drive". The speed change process is free of tooth surface impact, sudden speed changes, and power interruption, resulting in smoother operation, lower noise, less wear on gears and transmission components, and extended service life of the entire machine. 5. An intelligent feeding mechanism for metal powder grinding, wherein the feeding speed is switched through automatic meshing of a mechanical structure. Specifically, it utilizes the return force of a spring, the pressure transmission of an arc-shaped load-bearing plate, and the sliding engagement of a wedge block and a guide wheel to drive a splined sleeve to slide along the spline, completing the switching between speed-increasing and speed-reducing gears. The entire process requires no complex electrical sensors, PLC control systems, or manual intervention. This self-driven mechanical design simplifies the equipment structure, reduces manufacturing costs and maintenance difficulty, and avoids production interruptions caused by electrical control system failures. It is also more suitable for grinding environments with high dust levels.

[0019] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram of part A in the diagram; Figure 4 This is a schematic diagram of the assembly state structure of the adaptive feeding control mechanism and rotary joint of the present invention; Figure 5 This is a cross-sectional view of the adaptive feeding control mechanism of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram of part B in the diagram; Figure 7 For the present invention Figure 5 A magnified structural diagram of part C in the diagram; Figure 8 For the present invention Figure 5 A magnified structural diagram of part D in the diagram; Figure 9 This is a first cross-sectional view of the feeding assembly of the present invention; Figure 10 This is a second cross-sectional view of the feeding assembly of the present invention; Figure 11 This is a schematic diagram of the adaptive feeding control mechanism of the present invention in the state of removing the raw material transition tube; Figure 12 This is a schematic diagram of the deceleration feeding state structure of the dynamic feeding speed control component of the present invention; Figure 13 This is a schematic diagram of the dynamic feeding speed control component of the present invention in a uniform feeding state. Figure 14 For the present invention Figure 13 A magnified structural diagram of part E in the diagram; Figure 15 This is a schematic diagram of the accelerated feeding state structure of the dynamic feeding speed control component of the present invention; Figure 16 This is a schematic diagram of the exploded state structure of the dynamic control component for feeding speed of the present invention; Figure 17 This is a schematic diagram of the material weight sensing component of the present invention.

[0021] In the diagram: 1. Metal powder grinding equipment; 2. Adaptive feeding control mechanism; 21. Raw material transition pipe; 22. Transmission box; 23. Protective box assembly; 231. Protective box body; 232. First lifting slide; 233. Limit block; 24. Support; 25. Screw; 26. Servo motor; 27. Dynamic feeding speed control assembly; 271. Drive shaft; 272. First drive gear; 273. Second drive gear; 274. Transmission shaft; 275. First driven gear; 276. Second driven gear; 277. First driven gear ring; 278. Second driven gear ring; 279. Spline sleeve; 2710. First drive gear ring; 2711. Second drive gear ring; 2712. Actuating ring; 2713. Actuating rod; 2 714. Wedge No. 1; 2715. Wedge No. 2; 2716. Third drive gear; 2717. Spline; 2718. First transition gear; 2719. Second transition gear; 2720. Arc transition angle; 28. Material weight sensing component; 281. Arc-shaped load-bearing plate; 282. Lifting rod; 283. Long rod; 284. Spring; 285. First vertical plate; 286. First guide wheel; 287. Second vertical plate; 288. Second guide wheel; 29. ​​Second lifting slide; 210. Toothed belt; 211. Horizontal plate; 212. Long strip-shaped limiting through groove; 3. Rotary joint; 4. Feeding component; 41. Hopper; 42. Feeding pipe; 43. Discharge notch; 44. Rotating shaft; 45. Discharge gear; 46. Blade. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides three technical solutions: an intelligent feeding mechanism based on metal powder grinding, specifically including the following embodiments: like Figures 1-2 The first embodiment is shown: an intelligent feeding mechanism based on metal powder grinding, including a metal powder grinding device 1, and further comprising: The adaptive feeding control mechanism 2 is fixed to the feed side of the metal powder grinding equipment 1 by a mounting bracket. The adaptive feeding control mechanism 2 dynamically adjusts the feeding speed based on the amount of metal powder raw material in the metal powder grinding equipment 1 and the material retention and accumulation pressure in its own cavity. When the metal powder is consumed during grinding in the metal powder grinding equipment 1, the material retention in the adaptive feeding control mechanism 2 decreases, and the accumulation pressure is lower than the preset threshold, the feeding speed is automatically increased to replenish the material. When there is an excess of metal powder in the metal powder grinding equipment 1, the material cannot enter the rotary grinding zone in time and forms a retention accumulation in the cavity of the adaptive feeding control mechanism 2, and the accumulation pressure is higher than the preset threshold, the feeding speed is automatically reduced to reduce the feed amount. By leveraging the positive correlation between the pressure accumulated in the raw material transition pipe 21 and the amount of material in the metal powder grinding equipment 1, the material state inside the cylinder is indirectly and accurately sensed, avoiding mechanical interference from the metal powder grinding equipment 1 on the adaptive feeding control mechanism 2. This ensures that the amount of metal powder in the grinding equipment 1 is always maintained within the preset process-adaptive threshold range. Since the material in the metal powder grinding equipment 1 is in a dynamic cycle of "throwing and pouring," when there is too much material in the metal powder grinding equipment 1, the material cannot enter the rotating zone in time and will accumulate in the raw material transition pipe 21. The gravity of the accumulated material and the material backflow pressure of the rotating cylinder will directly act on the material weight sensing component 28. When the material in the metal powder grinding equipment 1 is consumed, the amount of material retained in the transition chamber decreases, and the pressure decreases accordingly. This design, through the positive correlation between the pressure in the raw material transition pipe 21 and the amount of material in the metal powder grinding equipment 1, achieves indirect but accurate real-time sensing of the material state inside the ball mill cavity, completely avoiding mechanical interference from the rotation of the metal powder grinding equipment 1 on the material weight sensing component 28.

[0024] The rotary joint 3 is rotatably disposed between the feed side of the metal powder grinding equipment 1 and the feeding side of the adaptive feeding control mechanism 2, and is used to feed the metal powder raw material from the stationary adaptive feeding control mechanism 2 into the rotating metal powder grinding equipment 1. The feeding component 4 is positioned above the adaptive feeding control mechanism 2 and is used to link with the dynamic feeding speed of the adaptive feeding control mechanism 2 to increase or decrease the supply speed of metal powder raw materials into the adaptive feeding control mechanism 2, so as to avoid the situation of concentrated accumulation of metal raw materials.

[0025] In this embodiment, the hopper 41 of the material assembly 4 has an effective volume of 50L, which can meet the raw material supply for continuous 8-hour grinding production. The inner wall of the hopper 41 is polished, with a surface roughness Ra≤0.8μm to prevent metal powder from adhering to the wall. The vertical height difference between the material feeding assembly 4 and the adaptive feeding control mechanism 2 is 300mm, using gravity to assist in feeding, while avoiding excessive height difference that could cause the raw material to impact the arc-shaped support plate 281 and affect the accuracy of material weight sensing.

[0026] In this embodiment, the metal powder grinding equipment 1 adopts a horizontal rotary ball mill cylinder with a cylinder rotation speed set at 30 r / min-60 r / min, suitable for grinding common metal powders such as iron-based, copper-based, and nickel-based powders. The coaxiality error between the adaptive feeding control mechanism 2 and the metal powder grinding equipment 1 is controlled within 0.05 mm to avoid material conveying jams or rotary joint 3 sealing failure due to installation deviations. The preset material accumulation pressure threshold can be adjusted by replacing springs 284 with different elastic coefficients. For grinding coarse metal raw materials, a spring with an elastic coefficient K=50 N / mm can be selected, corresponding to higher pressure triggering deceleration; for pre-grinding fine powders, a spring with an elastic coefficient K=20 N / mm can be selected to achieve sensitive speed adjustment.

[0027] like Figures 3-8 , Figures 11-17 The second embodiment is shown. The adaptive feeding control mechanism 2 includes a raw material transition pipe 21, which is connected to the inner cavity of the metal powder grinding equipment 1 via a rotary joint 3 to correlate the amount of metal powder raw material in the metal powder grinding equipment 1 with the amount of raw material in the inner cavity of the raw material transition pipe 21. A transmission box 22 is fixedly installed at the end of the raw material transition pipe 21 away from the metal powder grinding equipment 1. A protective box assembly 23 is fixedly installed at the bottom of the raw material transition pipe 21. An auger 25 is rotatably installed inside the raw material transition pipe 21 via a bracket 24. A servo motor 26 is fixedly installed on the outer wall of the transmission box 22. The output shaft of the servo motor 26 rotates through the transmission box 22 and is connected to a feeding speed dynamic control component 27, which is used to adjust the fixed feed speed input of the servo motor 26 according to the material accumulation pressure signal in the raw material transition pipe 21. The rotation speed is adjusted to decrease or increase to drive the auger 25 to push the metal powder raw material, ensuring that the amount of metal powder in the metal powder grinding equipment 1 under grinding conditions is always maintained within the preset process adaptation threshold range. The protective box assembly 23 is also equipped with a material weight sensing component 28 for sensing the amount of metal powder raw material in the material transition tube 21. The bottom of the inner cavity of the material transition tube 21 is provided with a second lifting slide 29 for the lifting and lowering movement of the material weight sensing component 28. The feeding assembly 4 and the feeding speed dynamic control assembly 27 are connected by a toothed belt 210. A horizontal plate 211 is also fixedly installed on the inner wall of the transmission box 22. The top of the horizontal plate 211 is provided with a long strip-shaped limiting groove 212. The actuating rod 2713 can only slide away from or towards the auger 25 within the long strip-shaped limiting groove 212.

[0028] In this embodiment, the protective box assembly 23 includes a protective box body 231. A first lifting slide groove 232 is provided on the side wall of the protective box body 231. Limiting blocks 233 are fixedly provided on both sides of the inner wall of the first lifting slide groove 232 to limit the downward movement of the weight sensing component 28. The protective box body 231 is made of cold-rolled steel plate bent and welded, with an internal cavity height of 150mm, providing sufficient space for the lifting and lowering of the weight sensing component 28. The width of the first lifting slide groove 232 matches the width of the long rod 283 with a gap of 0.1mm, ensuring that the long rod 283 can be lifted and lowered vertically without wobbling. The limiting blocks 233 are made of rubber buffer material with a thickness of 10mm, which can absorb the impact force of the long rod 283 moving downward, avoiding noise and component damage caused by mechanical collision, while accurately limiting the downward movement limit of the weight sensing component 28 to ensure accurate gear shifting engagement position.

[0029] In this embodiment, the dynamic control component 27 for feeding speed includes a drive shaft 271 connected to the output shaft of a servo motor 26 via a coupling. A first drive gear 272, a second drive gear 273, and a first transition gear 2718 are fixedly sleeved on the outer wall of the drive shaft 271. The first transition gear 2718 is located between the first drive gear 272 and the second drive gear 272. A transmission shaft 274 is rotatably disposed below the drive shaft 271. A second drive gear 273 is rotatably sleeved on one side of the outer wall of the transmission shaft 274. A first driven gear 275 is engaged with the first driven gear 272. A second driven gear 276 is rotatably sleeved on the other side of the outer wall of the first driven gear 275 near the second driven gear 276. A first driven gear ring 277 is fixedly provided on the side wall of the first driven gear 275 near the second driven gear 276. A second driven gear ring 278 is fixedly provided on the side wall of the second driven gear 276 near the first driven gear 275. A speed adjustment unit is also provided on the outer wall of the transmission shaft 274 between the first driven gear 275 and the second driven gear 276.

[0030] In this embodiment, both the drive shaft 271 and the transmission shaft 274 are treated with 40Cr tempering, with a surface hardness of HRC28~32 and a bending strength ≥800MPa, meeting the long-term transmission torque requirements. The first drive gear 272 has a module of 2 and 20 teeth; the second drive gear 273 has a module of 2 and 28 teeth; the first driven gear 275 has a module of 2 and 32 teeth; and the second driven gear 276 has a module of 2 and 24 teeth. Precise control of speed increase and decrease is achieved through the tooth ratio. In speed increase mode, the transmission shaft 274 rotates at 1200 r / min, and in speed decrease mode, it rotates at 600 r / min. These two speed levels cover the full process requirements of metal powder grinding. The first driven gear ring 277 and the second driven gear ring 278 have straight teeth with carburizing and quenching treatment on the tooth surface, improving wear resistance and extending the meshing service life.

[0031] In this embodiment, the speed regulation unit includes a spline 2717 fixedly sleeved on the outer wall of the drive shaft 274 and located between the first driven gear 275 and the second driven gear 276. Limiting rings are fixedly provided at both ends of the spline 2717. A spline sleeve 279 is slidably sleeved on the outer wall of the spline 2717. A first driving gear ring 2710 and a second driving gear ring 2711 are fixedly provided at both ends of the spline sleeve 279, and a gear ring 2710 and a second driving gear ring 2711 are fixedly sleeved at the middle position of the spline sleeve 279. The second transition gear 2719, which works in conjunction with the transition gear 2718, has rounded transition angles 2720 at both ends of the teeth on the surfaces of both the first transition gear 2718 and the second transition gear 2719 to facilitate smooth meshing. When the spline sleeve 279 slides along the outer wall of the spline 2717, the first drive gear ring 2710 can mesh with the first driven gear ring 277, or the second drive gear ring 2711 can mesh with the second driven gear ring 278. At other times, the first drive gear ring 2710 meshes with the first driven gear ring 277, or the second drive gear ring 2711 meshes with the second driven gear ring 278. The first transition gear 2718 and the second transition gear 2719 mesh with each other. A deflector ring 2712 is also rotatably sleeved on the outer wall of the spline sleeve 279. A deflector rod 2713 is fixedly mounted at the bottom of the deflector ring 2712. A wedge-shaped block 2 is fixedly mounted on each side of the outer wall of the deflector rod 2713. 714 and the second wedge block 2715, a third drive gear 2716 is fixedly sleeved on one side of the outer wall of the drive shaft 274. The outer diameter of the first drive gear 272 is smaller than that of the second driven gear 276. After the second drive gear ring 2711 and the second driven gear ring 278 mesh, the relative speed of the drive shaft 274 is reduced. The outer diameter of the second drive gear 273 is larger than that of the first driven gear 275. After the first drive gear ring 2710 and the first driven gear ring 277 mesh, the speed of the drive shaft 274 is increased. A toothed belt 210 is simultaneously sleeved on the outer wall of the third drive gear 2716 and the feeding gear 45, so as to drive the feeding gear 45 to rotate using the third drive gear 2716. One end of the drive shaft 274 is fixedly connected to the auger 25, and both ends of the drive shaft 274 are rotatably mounted on the inner wall of the transmission box 22.

[0032] In this embodiment, spline 2717 is a rectangular spline with 6 teeth, providing high centering accuracy. The sliding clearance between spline sleeve 279 and spline 2717 is 0.02mm, resulting in low sliding resistance, fast response speed, and a speed change time ≤0.5s. The limiting ring adopts an elastic retaining ring structure, facilitating easy installation and disassembly and effectively preventing spline sleeve 279 from slipping out of spline 2717. The radius of the arc transition angle 2720 is 1mm, eliminating tooth tip interference during gear meshing, preventing meshing jamming and abnormal noise, and reducing tooth surface wear. A thrust ball bearing is installed between the actuating ring 2712 and spline sleeve 279 to achieve relative movement between the rotation of spline sleeve 279 and the stationary position of actuating ring 2712, preventing the actuating lever 2713 from rotating with spline sleeve 279. The slope angle between wedge block 2714 and wedge block 2715 is 30°, which ensures smooth sliding of the guide wheel and efficiently converts vertical lifting force into horizontal thrust, with a power transmission efficiency of ≥90%. The gear ratio between the third drive gear 2716 and the feeding gear 45 is 1:1, ensuring that the feeding speed and the material delivery speed are completely synchronized with each other, with no speed deviation.

[0033] In this embodiment, the material weight sensing component 28 includes an arc-shaped load-bearing plate 281 that is sealed and slidably disposed within the second lifting groove 29. Multiple lifting rods 282 are uniformly fixedly disposed at the bottom of the arc-shaped load-bearing plate 281. The bottom ends of the lifting rods 282 slide through the raw material transition pipe 21 and the protective box assembly 23, extending to the outside. A long rod 283 is fixedly sleeved on the outer wall of the multiple lifting rods 282 and located inside the protective box assembly 23. A spring 284 is slidably sleeved on the outer wall of the lifting rods 282 and located between the long rod 283 and the inner wall of the protective box assembly 23. A first-speed drive unit and a second-speed drive unit are respectively disposed on one side of the top of the long rod 283. The long rod 283 is slidably disposed within the first lifting groove 232. The limiting block 233 can limit the downward movement limit position of the long rod 283. When the long rod 283 moves to the limit position, the second drive gear ring 2711 engages with the second driven gear ring 278.

[0034] In this embodiment, the curvature of the arc-shaped load-bearing plate 281 matches the curvature of the inner wall of the raw material transition pipe 21. A polyurethane sealing gasket with a thickness of 2mm is adhered to its surface, ensuring a tight seal with the second lifting slide 29 to prevent metal powder from penetrating into the protective box 231, while also providing wear resistance and impact resistance. Four lifting rods 282 are evenly distributed at the bottom of the arc-shaped load-bearing plate 281 to ensure uniform force distribution. Shaft sealing rings with an IP65 sealing rating are installed at the penetration points of the lifting rods 282 into the raw material transition pipe 21 and the protective box 231 to prevent dust ingress. The spring 284 is a cylindrical compression spring with a natural length of 100mm and a maximum compression of 50mm. Its elastic deformation range covers the entire stroke of the material weight sensor, ensuring sensitive pressure sensing. The maximum withstand pressure of the arc-shaped load-bearing plate 281 is 500N, corresponding to a material accumulation height of 150mm in the raw material transition pipe 21. Reaching this pressure precisely triggers the deceleration mode.

[0035] In this embodiment, the first transmission drive unit includes a first vertical plate 285 fixedly mounted on the top of the long rod 283. A first guide wheel 286 is rotatably mounted on the side wall of the first vertical plate 285 near the second transmission drive unit. The second transmission drive unit includes a second vertical plate 287 fixedly mounted on the top of the long rod 283. A second guide wheel 288 is rotatably mounted on the side wall opposite the second vertical plate 287 and the first guide wheel 286. The first guide wheel 286 and the second guide wheel 288 slide along the slope surfaces of the first wedge block 2714 and the second wedge block 2715, respectively.

[0036] like Figures 9-10 A third embodiment is shown, in which the feeding assembly 4 includes a hopper 41 and a conveying conduit fixedly disposed at its bottom. A feeding pipe 42 is fixedly disposed at the bottom end of the conveying conduit, and a discharge notch 43 for unloading is provided at the bottom of the feeding pipe 42. A rotating shaft 44 is rotatably disposed inside the feeding pipe 42, and a plurality of blades 46 are evenly fixedly disposed on the outer wall of the rotating shaft 44. The end of each blade 46 away from the rotating shaft 44 is sealed and slidably disposed on the inner wall of the feeding pipe 42. One end of the rotating shaft 44 extends to the outside of the feeding pipe 42 and is fixedly connected to the discharge gear 45.

[0037] In this embodiment, the conveying conduit has a tapered constriction structure with an upper inner diameter of 150mm and a lower inner diameter of 80mm, guiding the material smoothly into the feeding pipe 42 and avoiding blockage. The feeding pipe 42 is 300mm long and has an inner diameter of 80mm, aligned with the inlet of the raw material transition pipe 21. The discharge notch 43 is 100mm long and 60mm wide, providing ample discharge area to ensure the material falls quickly into the raw material transition pipe 21. There are six blades 46, made of 1mm thick stainless steel sheets. The blades 46 fit tightly against the inner wall of the feeding pipe 42, providing a good seal and allowing for the quantitative conveying of metal powder while preventing material from flowing away. The rotating shaft 44 is connected to both ends of the feeding pipe 42 via rolling bearings, allowing for flexible and smooth rotation. The discharge gear 45 and the third drive gear 2716 are driven by a toothed belt 210, the belt tension of which can be adjusted by an adjusting wheel to ensure smooth transmission.

[0038] In use, firstly, steel balls are pre-added into the metal powder grinding equipment 1, with a filling rate of 40%-50% of the cylinder volume. The steel ball particle size ratio is Φ20mm:Φ15mm:Φ10mm=3:4:3, which is suitable for the crushing and refining requirements of metal powder grinding. Then, the metal powder raw material is fed into the feeding assembly 4. At the beginning of feeding, the servo motor 26 is powered on, and the output shaft drives the drive shaft 271 to rotate at a constant speed of 1500r / min. The first drive gear 272, the second drive gear 273, and the first transition gear 2718 rotate synchronously and at a constant speed with the drive shaft 271.

[0039] At this time, the first driven gear 275 and the second driven gear 276 are both loosely fitted on the transmission shaft 274 through bearings. The first drive gear ring 2710 and the first driven gear ring 277 are in a separated state, and the second drive gear ring 2711 and the second driven gear ring 278 are also in a separated state. Power is transmitted only from the first transition gear 2718 to the second transition gear 2719. The second transition gear 2719 drives the spline sleeve 279, spline 2717 and transmission shaft 274 to keep rotating, so that the transmission system is in a stable standby state and avoids impact and jamming caused by static meshing of the tooth surfaces.

[0040] Since there is less raw material on the top of the arc-shaped support plate 281 at this time, the downward pressure on the arc-shaped support plate 281 is small. The elastic force of the spring 284 pushes the long rod 283 to move upward to the limit position, that is, the top of the long rod 283 abuts against the top of the first lifting slide 232. At this time, the arc-shaped support plate 281 just reaches the top of the second lifting slide 29, and the arc-shaped surface of the top of the arc-shaped support plate 281 is flush with the inner wall of the raw material transition pipe 21, without any protrusions or depressions, thus avoiding dead corners for material accumulation. As the long rod 283 moves upward, the second guide wheel 288 moves upward along the slope of the second wedge block 2715, pushing the second wedge block 2715 towards the direction of the first driven gear 275. Meanwhile, the first guide wheel 286 moves upward along the slope of the first wedge block 2714 to avoid interfering with the movement of the actuating rod 2713. Finally, the actuating rod 2713 pushes the spline sleeve 279 to slide along the spline 2717 toward the side of the first driven gear 275.

[0041] At the instant the spline sleeve 279 moves to the point where the first drive gear ring 2710 and the first driven gear ring 277 mesh, the first transition gear 2718 and the second transition gear 2719 change from an engaged state to a disengaged state. They no longer contact each other or transmit power. The power transmission path completely switches to: second drive gear 273, first driven gear 275, first driven gear ring 277, first drive gear ring 2710, spline sleeve 279, spline 2717, and drive shaft 274. Drive shaft 274 enters the speed-up mode. During the entire speed-up feeding stage, when the first drive gear ring 2710 and the first driven gear ring 277 remain fully engaged, the first transition gear 2718 and the second transition gear 2719 remain disengaged and do not participate in the transmission.

[0042] At this time, the drive shaft 274 rotates at a relatively fast speed of 1200 r / min, and the auger 25 rapidly replenishes the metal raw material into the metal powder grinding equipment 1 at high speed. During the grinding of the metal raw material, the steel balls continuously collide with the metal raw material, causing large pieces of metal raw material to be broken and gradually ground into finer particles. Particles with qualified particle size (particle diameter ≤ 45 μm) are continuously discharged through the discharge port of the metal powder grinding equipment 1.

[0043] Next, the third drive gear 2716 drives the discharge gear 45 to rotate via the toothed belt 210. The raw material in the hopper 41 falls into the space between two adjacent blades 46 under the action of gravity. The volume of a single blade chamber is 50 cm³, which can quantitatively convey the raw material. When the rotating shaft 44 rotates, multiple blades 46 transfer the metal raw material to the position opposite to the discharge notch 43. Under the action of gravity, the metal raw material falls onto the arc-shaped load-bearing plate 281 in the raw material transition pipe 21. The auger 25 rotates at high speed and gradually pushes the metal raw material towards the rotary joint 3, and smoothly inputs it into the metal powder grinding equipment 1 through the rotary joint 3 without material splashing or leakage.

[0044] The discharge speed of qualified powder from the discharge port of the metal powder grinding equipment 1 is affected by the size of the raw material particles. When the input metal raw material particles are large (particle size 15mm~20mm), the time required to grind into qualified metal powder increases, usually to 2-3 hours. If the amount of metal raw material input into the metal powder grinding equipment 1 remains unchanged, but the time to grind into qualified metal powder is prolonged, the amount of metal raw material accumulated inside the metal powder grinding equipment 1 will increase. At this time, the resistance when the auger 25 pushes the metal raw material into the metal powder grinding equipment 1 will increase, resulting in more metal raw material accumulating inside the raw material transition pipe 21. The top of the arc-shaped load-bearing plate 281 is subjected to the pressure of the gradually increasing metal raw material and overcomes the spring force to move downward smoothly. The downward movement speed is positively correlated with the amount of material accumulation, thereby synchronously driving the long rod 283 to move downward.

[0045] At this time, the first guide wheel 286 moves down along the slope of the first wedge block 2714, pushing the actuating rod 2713 to move towards the second driven gear 276. Before the actuating rod 2713 drives the spline sleeve 279 to start sliding, until the first drive gear ring 2710 and the first driven gear ring 277 just change to the separated state, the first drive gear ring 2710 and the first driven gear ring 277 always remain meshed, and the first transition gear 2718 and the second transition gear 2719 always remain separated.

[0046] When the first drive gear ring 2710 and the first driven gear ring 277 transition from an engaged state to a disengaged state, the first transition gear 2718 and the second transition gear 2719 immediately transition from a disengaged state to an engaged state, resuming temporary power transmission and maintaining the synchronous rotation of the spline sleeve 279 and the drive shaft 274, thus avoiding power interruption, speed fluctuations, and meshing impact. Subsequently, throughout the entire sliding process as the second drive gear ring 2711 approaches the second driven gear ring 278, the first drive gear ring 2710 and the first driven gear ring 277 remain disengaged, while the first transition gear 2718 and the second transition gear 2719 remain engaged, providing stable transition transmission.

[0047] The instant the second drive gear ring 2711 and the second driven gear ring 278 mesh, the first transition gear 2718 and the second transition gear 2719 immediately switch from meshing to disengagement, ceasing power transmission. The power path then completely switches to: first drive gear 272, second driven gear 276, second driven gear ring 278, second drive gear ring 2711, spline sleeve 279, spline 2717, and drive shaft 274. Drive shaft 274 enters deceleration mode, with its speed steadily decreasing to 600 r / min. Throughout the entire deceleration feeding phase, while the second drive gear ring 2711 and the second driven gear ring 278 remain meshed, the first transition gear 2718 and the second transition gear 2719 remain disengaged.

[0048] At this time, the speed at which the auger 25 pushes the metal raw material to the metal powder grinding equipment 1 decreases to avoid the metal raw material in the metal powder grinding equipment 1 from "bloating" due to continuous increase. At the same time, the feeding component 4 decelerates and feeds the material synchronously, so there is no accumulation of raw material.

[0049] Next, as qualified metal powder is continuously discharged from the metal powder grinding equipment 1, the amount of metal raw material in the metal powder grinding equipment 1 decreases. There is no metal raw material obstructing the feed port of the metal powder grinding equipment 1 connected to the output port of the rotary joint 3. The metal raw material on the top of the arc-shaped support plate 281 is continuously transported into the metal powder grinding equipment 1 again, which causes the amount of raw material on the top of the arc-shaped support plate 281 to decrease rapidly. This results in a decrease in pressure on the top of the arc-shaped support plate 281. The elastic force of the spring 284 pushes the arc-shaped support plate 281 to gradually move upward to the limit position. The long rod 283 moves upward accordingly. The first guide wheel 286 and the second guide wheel 288 slide in opposite directions, causing the actuating rod 2713 and the spline sleeve 279 to slide back towards the first driven gear 275.

[0050] When the second drive gear ring 2711 and the second driven gear ring 278 just switch to the separated state, the first transition gear 2718 and the second transition gear 2719 immediately switch from separation to engagement and resume the transition transmission; until the first drive gear ring 2710 and the first driven gear ring 277 just start to engage again, the first transition gear 2718 and the second transition gear 2719 separate again, the system resumes the speed-up feeding state, and completes one complete speed regulation cycle.

[0051] In summary, when the pressure at the top of the arc-shaped support plate 281 increases: excessive metal raw material in the metal powder grinding equipment 1 causes material to accumulate in the raw material transition pipe 21. The accumulation pressure acts on the arc-shaped support plate 281, causing it to move downwards. This drives the dynamic control component 27 of the feeding speed to perform a deceleration motion, causing the auger 25 to slow down and reduce the pushing of metal raw material. At the same time, the rotation speed of the drive shaft 44 decreases synchronously, reducing the amount of metal raw material fed into the raw material transition pipe 21 per unit time. When the pressure at the top of the arc-shaped support plate 281 decreases: material in the metal powder grinding equipment 1 is consumed, and the amount of metal raw material retained in the raw material transition pipe 21 decreases, causing the pressure at the top of the arc-shaped support plate 281 to drop. The spring 284 pushes the arc-shaped support plate 281 to reset, the long rod 283 moves upwards, and the dynamic control component 27 of the feeding speed switches to high-speed engagement, causing the auger 25 to speed up and replenish material. This process repeats itself, achieving intelligent, continuous, and stable feeding throughout the entire process.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent feeding mechanism based on metal powder grinding, comprising a metal powder grinding device, characterized in that, Also includes: An adaptive feeding control mechanism is fixed to the feed side of the metal powder grinding equipment by a mounting bracket. The adaptive feeding control mechanism dynamically adjusts the feeding speed based on the amount of metal powder raw material in the metal powder grinding equipment and the material retention and accumulation pressure in its own cavity. When the metal powder is consumed during grinding in the metal powder grinding equipment, the material retention in the adaptive feeding control mechanism decreases, and the accumulation pressure is lower than the preset threshold, the feeding speed is automatically increased to replenish the material. When there is excessive metal powder in the metal powder grinding equipment, the material cannot enter the rotary grinding zone in time and forms a retention accumulation in the cavity of the adaptive feeding control mechanism, and the accumulation pressure is higher than the preset threshold, the feeding speed is automatically reduced to reduce the feed amount. A rotary joint is rotatably positioned between the feed side of the metal powder grinding equipment and the feeding side of the adaptive feeding control mechanism, and is used to feed metal powder raw materials from the stationary adaptive feeding control mechanism into the rotating metal powder grinding equipment. The feeding component is located above the adaptive feeding control mechanism and is used to link with the dynamic feeding speed of the adaptive feeding control mechanism to increase or decrease the supply speed of metal powder raw materials into the adaptive feeding control mechanism to avoid the accumulation of metal raw materials.

2. The intelligent feeding mechanism based on metal powder grinding and processing according to claim 1, characterized in that: The adaptive feeding control mechanism includes a raw material transition tube, which is connected to the inner cavity of the metal powder grinding equipment via a rotary joint to correlate the amount of metal powder raw material in the metal powder grinding equipment with the amount of raw material in the inner cavity of the raw material transition tube. A transmission box is fixedly installed at the end of the raw material transition tube away from the metal powder grinding equipment, and a protective box assembly is fixedly installed at the bottom of the raw material transition tube. Furthermore, an auger is rotatably installed inside the raw material transition tube via a bracket, and a servo motor is fixedly installed on the outer wall of the transmission box.

3. The intelligent feeding mechanism based on metal powder grinding and processing according to claim 2, characterized in that: The output shaft of the servo motor rotates through the transmission box and is connected to a dynamic feeding speed control component. This component adjusts the fixed rotation speed of the servo motor based on the material accumulation pressure signal in the raw material transition tube, thereby driving the auger to push the metal powder raw material. This ensures that the amount of metal powder in the metal powder grinding equipment is always maintained within the preset process-adapted threshold range. The protective box assembly is also equipped with a material weight sensing component to detect the amount of metal powder raw material in the raw material transition tube. The bottom of the inner cavity of the raw material transition tube has a second lifting slide for the lifting and lowering movement of the material weight sensing component. The feeding component and the dynamic feeding speed control component are connected by a toothed belt. A horizontal plate is also fixedly installed on the inner wall of the transmission box, and a long strip-shaped limiting groove is opened on the top of the horizontal plate.

4. The intelligent feeding mechanism based on metal powder grinding as described in claim 2, characterized in that: The protective box assembly includes a protective box body, and a first lifting slide groove is provided on the side wall of the protective box body. Limiting blocks for restricting the downward movement of the weight sensing component are fixedly provided on both sides of the inner wall of the first lifting slide groove.

5. The intelligent feeding mechanism based on metal powder grinding and processing according to claim 3, characterized in that: The dynamic control component for feeding speed includes a drive shaft connected to the output shaft of a servo motor via a coupling. A first drive gear, a second drive gear, and a first transition gear are fixedly sleeved on the outer wall of the drive shaft. The first transition gear is located between the first drive gear and the second drive gear. A transmission shaft is rotatably arranged below the drive shaft. A first driven gear meshing with the second drive gear is rotatably sleeved on one side of the outer wall of the transmission shaft, and a second driven gear meshing with the first drive gear is rotatably sleeved on the other side of the outer wall. A first driven gear ring is fixedly arranged on the side wall of the first driven gear near the second driven gear, and a second driven gear ring is fixedly arranged on the side wall of the second driven gear near the first driven gear. A speed adjustment unit is also arranged on the outer wall of the transmission shaft, located between the first driven gear and the second driven gear.

6. The intelligent feeding mechanism based on metal powder grinding as described in claim 5, characterized in that: The speed regulation unit includes a spline fixedly sleeved on the outer wall of the transmission shaft and located between the first driven gear and the second driven gear. Limiting rings are fixedly provided at both ends of the spline. A spline sleeve is slidably sleeved on the outer wall of the spline. A first drive gear ring and a second drive gear ring are fixedly provided at both ends of the spline sleeve, and a second transition gear that cooperates with the first transition gear is fixedly sleeved at the middle position of the spline sleeve. Both ends of the teeth of the first transition gear and the second transition gear are provided with arc transition angles to facilitate smooth meshing of the first transition gear and the second transition gear. When the spline sleeve slides along the outer wall of the spline, the first drive gear ring can mesh with the first driven gear ring or the second drive gear ring can mesh with the second driven gear ring. At other times, the first transition gear and the second transition gear mesh with each other.

7. The intelligent feeding mechanism based on metal powder grinding as described in claim 6, characterized in that: A rotatable actuating ring is also rotatably fitted on the outer wall of the spline sleeve. A actuating rod is fixedly installed at the bottom of the actuating ring. A first wedge block and a second wedge block are fixedly installed on both sides of the outer wall of the actuating rod, respectively. A third drive gear is fixedly fitted on one side of the outer wall of the transmission shaft. The outer diameter of the first drive gear is smaller than that of the second driven gear. When the second drive gear and the second driven gear mesh, the relative speed of the transmission shaft is reduced. The outer diameter of the second drive gear is larger than that of the first driven gear. When the first drive gear and the first driven gear mesh, the speed of the transmission shaft is increased.

8. The intelligent feeding mechanism based on metal powder grinding and processing according to claim 3, characterized in that: The material weight sensing component includes an arc-shaped load-bearing plate that is sealed and slidably disposed in the second lifting groove. Multiple lifting rods are evenly fixedly disposed at the bottom of the arc-shaped load-bearing plate. The bottom end of the lifting rod slides through the raw material transition pipe and the protective box assembly and extends to the outside. A long rod is fixedly sleeved on the outer wall of the multiple lifting rods and located inside the protective box assembly. A spring is slidably sleeved on the outer wall of the lifting rod and located between the long rod and the inner wall of the protective box assembly. A first-speed drive unit and a second-speed drive unit are respectively disposed on one side of the top of the long rod.

9. The intelligent feeding mechanism based on metal powder grinding as described in claim 8, characterized in that: The first transmission drive unit includes a first vertical plate fixedly mounted on the top of the long rod. A first guide wheel is rotatably mounted on the side wall of the first vertical plate near the second transmission drive unit. The second transmission drive unit includes a second vertical plate fixedly mounted on the top of the long rod. A second guide wheel is rotatably mounted on the side wall of the second vertical plate opposite to the first guide wheel. The first guide wheel and the second guide wheel slide along the slope surfaces of the first wedge block and the second wedge block, respectively.

10. The intelligent feeding mechanism based on metal powder grinding as described in claim 1, characterized in that: The feeding assembly includes a hopper and a conveying conduit fixedly disposed at its bottom. A feeding pipe is fixedly disposed at the bottom end of the conveying conduit, and a discharge notch for unloading is opened at the bottom of the feeding pipe. A rotating shaft is also rotatably disposed inside the feeding pipe. Multiple blades are evenly fixedly disposed on the outer wall of the rotating shaft, and the end of each blade away from the rotating shaft is sealed and slidably disposed on the inner wall of the feeding pipe.

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