Multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding

Abstract

The application discloses a multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding, relates to the technical field of metal powder processing, and comprises an equipment shell, a spiral conveyor and an upper die. A controller is fixedly connected to the outside of the equipment shell. A forming die is arranged in the equipment shell. A plurality of storage grooves are formed in the top of the forming die. A lower die is arranged at the bottom of the inner cavity of each storage groove. A supporting assembly is arranged at the bottom of each lower die. The horizontal movement of the moving frame can smooth the top of the metal powder stored in the storage groove, directly compact and shape the metal powder into a preset shape, and can accurately store the required amount of metal powder in the storage groove while forming a metal piece through one-time feeding and pressing. The application changes the traditional process of multiple feeding and multiple pressing to form a metal piece and avoids the layered condition of the metal piece.

Description

Technical Field

[0001] This invention relates to the field of metal powder processing technology, specifically to a multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding. Background Technology

[0002] Powder metallurgy is a metal product formed by pressing and sintering metal powders. Powder metallurgy can easily produce large quantities of metal products quickly, effectively reducing production time.

[0003] For example, Chinese patent application CN120243921B discloses a metal powder pressing and molding machine, belonging to the field of powder metallurgy technology. It includes an equipment housing, a control module mounted on the surface of the housing, a motor mounted at the bottom of the housing, a rotating base nested at the bottom of the inner wall of the housing, a portion of the rotating base extending out of the housing and connected to the motor, a storage bin nested at the top of the housing, and a mounting bracket mounted at the top of the inner wall of the housing.

[0004] Taking the aforementioned metal powder pressing and molding machine as an example, in order to meet the needs of processing and conveying, the metal powder itself is relatively loose, and the moving powder is discontinuous, which makes it difficult to measure the metal powder during the conveying process. Therefore, during the metal powder pressing and molding process, metal powder is poured and replenished into the mold multiple times. Each time the metal powder is poured and replenished, the metal powder is pressed once. The pressure and temperature requirements during each pressing process are extremely strict, which can easily lead to the delamination phenomenon in the structure of the metal parts pressed and molded by the metal powder, affecting the processing quality of the metal powder. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding, so as to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding, comprising an equipment shell, a screw conveyor and an upper mold. A controller is fixedly connected to the outside of the equipment shell, and a forming mold is provided inside the equipment shell. Multiple material storage troughs are opened on the top of the forming mold, and a lower mold is provided at the bottom of the inner cavity of each material storage trough. A support component is provided at the bottom of each lower mold. Two pneumatic cylinders are fixedly inserted through the bottom of the inner cavity of the equipment shell. A magnetic plate is fixedly connected to the piston end of each of the two pneumatic cylinders. A material blocking component is provided above one of the magnetic plates, and a material discharging component is provided above the other magnetic plate. Both the material blocking component and the material discharging component are located on the top of the forming mold.

[0007] Preferably, a drive shaft is fixedly connected to the bottom end of the molding die. The drive shaft rotatably passes through the bottom of the inner cavity of the equipment housing. A speed changer and a drive motor are fixedly connected to the bottom of the equipment housing. The output end of the drive motor is fixedly connected to the input end of the speed changer, and the bottom end of the drive shaft is fixedly connected to the output end of the speed changer.

[0008] Preferably, the bottom of the molding mold is fixedly connected to multiple support frames one and multiple support frames two. A rolling ball one is rolled at the bottom of the support frame one. A support plate is fixedly connected inside the equipment shell. The bottom of the rolling ball one abuts against the top of the support plate. The bottom of the support frame two is rolled with a rolling ball two. The rolling ball two abuts against the bottom of the inner cavity of the equipment shell.

[0009] Preferably, the screw conveyor inlet is fixedly connected to a feed pipe, the screw conveyor outlet is fixedly connected to a discharge pipe, the bottom end of the discharge pipe extends into the equipment housing, the outer wall of the discharge pipe is fixedly connected to the equipment housing, and the bottom end of the discharge pipe is fixedly connected to a flared pipe, which abuts against the top of the forming mold.

[0010] Preferably, the material blocking assembly includes an electric push rod fixedly connected inside the equipment housing, a motion frame set on one side of the top of the forming mold, a first limiting plate set on the top of the motion frame, and a second limiting plate set on the bottom of the motion frame. The piston end of the electric push rod is fixedly connected to the motion frame. The first limiting plate is fixedly installed inside the equipment housing. Two second telescopic rods are fixedly connected to the top of the first limiting plate. The piston ends of the two second telescopic rods are fixedly connected to the motion frame with short plates. A waste trough is opened on the top of the motion frame.

[0011] Preferably, the second limiting plate is fixedly connected to the inside of the equipment shell, one side of the second limiting plate abuts against the outer wall of the forming mold, the top of the second limiting plate is provided with a discharge groove, the bottom of the discharge groove is provided with a waste pipe, the waste pipe is fixedly connected between the second limiting plate and the equipment shell, the bottom end of the waste pipe extends to the outside of the equipment shell, the bottom end of the waste pipe is fixedly connected to a horizontal pipe, a blower is provided on one side of the equipment shell, and the air outlet of the blower is fixedly connected to the horizontal pipe.

[0012] Preferably, the support assembly includes a sliding frame fixedly connected to the bottom end of the lower mold, an iron pipe fixedly connected to the bottom end of the sliding frame, and an iron plate disposed at the bottom of the iron pipe. Multiple plastic rods are fixedly connected to the top of the iron plate, and electromagnets are fixedly connected between the multiple plastic rods. The electromagnets are disposed on the outside of the iron pipe and in contact with the outer wall of the iron pipe. The sliding frame is slidably mounted on the forming mold.

[0013] Preferably, a transmission column is fixedly connected to the top of the iron plate, a circular plate is fixedly connected to the top of the transmission column, a water storage bladder and multiple spring-loaded telescopic rods are fixedly connected to the top of the circular plate, the top of the water storage bladder and the piston end of the spring-loaded telescopic rods are both fixedly connected to the top of the inner cavity of the sliding frame, a hydraulic sensor is provided inside the water storage bladder, and the hydraulic sensor is fixedly installed on the top of the circular plate.

[0014] Preferably, each side of the pneumatic cylinder is provided with a telescopic rod, which is fixedly inserted through the bottom of the equipment housing. The piston end of the telescopic rod is fixedly connected to the magnetic plate. A polygonal column is fixedly connected to the top of the upper mold. The polygonal column is slidably installed on the top of the equipment housing. A transmission top plate is fixedly connected to the top of the polygonal column. A hydraulic cylinder and a telescopic rod are respectively provided on both sides of the bottom of the transmission top plate. The bottom ends of the hydraulic cylinder and the telescopic rod extend into the equipment housing. The outer walls of the hydraulic cylinder and the telescopic rod are fixedly connected to the equipment housing. The piston ends of the hydraulic cylinder and the telescopic rod are fixedly connected to the transmission top plate.

[0015] Preferably, the discharge assembly includes a finished product pipe disposed on the top of the forming mold, one end of the finished product pipe extending to the outside of the equipment housing, the outer wall of the finished product pipe being fixedly connected to the equipment housing, a circular material groove being provided at the bottom of the finished product pipe, a square push plate being provided inside the finished product pipe, two sliding grooves being provided at the top of the finished product pipe, each of the two sliding grooves being provided with a trapezoidal plate, both of the trapezoidal plates being fixedly connected to the square push plate, a connecting bend plate being fixedly connected between the two trapezoidal plates, and a second pneumatic cylinder being fixedly connected to the top of the finished product pipe, the piston end of the second pneumatic cylinder being fixedly connected to the connecting bend plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this application, after the metal powder is compacted, the excess metal powder is separated and collected, which quickly and efficiently recovers the excess metal powder and avoids waste. The horizontal movement of the motion frame also smooths the top of the metal powder remaining in the storage tank. The upper and lower molds and the storage tank are designed according to the shape of the metal part, directly compacting and shaping the metal powder into the preset shape. The required amount of metal powder can be accurately retained in the storage tank, achieving the purpose of forming a metal part with a single feeding and pressing. This changes the traditional process of multiple feeding and pressing to form metal parts, avoids the occurrence of metal part delamination, and ensures the quality of the pressed metal parts.

[0018] 2. When this application is used, the hydraulic cylinder works to move the upper mold downward, applying a preset pressure to the metal powder inside the storage tank for a period of time. After that, the hydraulic cylinder works to move the upper mold away from the storage tank, and the metal powder is pressed into a metal part. Since the metal powder in the storage tank has been compacted once by the material blocking component and the support component, air is released during the compaction process of the metal powder, reducing air bubbles in the metal part pressed by the upper mold, forming mold and lower mold. The material blocking component and the support component work together to reduce air bubbles in the metal part, ensuring the quality of the metal part pressed by the metal powder. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the device housing of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation of the device housing and the speed changer of the present invention;

[0022] Figure 4 This is a cross-sectional view of the outer casing of the device of the present invention;

[0023] Figure 5 for Figure 4 Enlarged view of the structure at point A;

[0024] Figure 6 This is a schematic diagram showing the connection between the finished pipe and the molding die of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the finished pipe of the present invention;

[0026] Figure 8 This is a schematic diagram of the square push plate of the present invention;

[0027] Figure 9 This is a schematic diagram of the support plate of the present invention;

[0028] Figure 10 This is a schematic diagram showing the connection between the molding die and the motion frame of the present invention;

[0029] Figure 11 This is a schematic diagram showing the connection between the molding die and the second limiting plate of the present invention;

[0030] Figure 12 This is a schematic diagram of the molding die of the present invention;

[0031] Figure 13 This is a cross-sectional view of the sliding frame of the present invention;

[0032] Figure 14 This is a schematic diagram of the circular plate of the present invention.

[0033] Numbered components in the diagram: 1. Equipment casing; 2. Controller; 3. Discharge pipe; 4. Screw conveyor; 5. Feed pipe; 6. Flared pipe; 7. Forming mold; 8. Support frame one; 9. Rolling ball one; 10. Support plate; 11. Drive shaft; 12. Speed ​​changer; 13. Support frame two; 14. Rolling ball two; 15. Pneumatic cylinder one; 16. Magnetic plate; 17. Telescopic rod one; 18. Storage trough; 19. Lower mold; 20. Sliding frame; 21. Iron pipe; 22. Drive column; 23. Circular plate; 24. Spring-loaded telescopic rod; 25. Water storage bladder; 26. Hydraulic sensor; 7. Iron plate; 28. Plastic rod; 29. ​​Electromagnet component; 30. Motion frame; 31. Electric push rod; 32. Waste trough; 33. Limiting plate one; 34. Telescopic rod two; 35. Limiting plate two; 36. Discharge trough; 37. Waste pipe; 38. Horizontal pipe; 39. Blower; 40. Hydraulic cylinder; 41. Telescopic rod three; 42. Transmission top plate; 43. Polygonal column; 44. Upper mold; 45. Finished product pipe; 46. Circular material trough; 47. Square push plate; 48. Trapezoidal plate; 49. Connecting bent plate; 50. Pneumatic cylinder two; 51. Sliding groove; 52. Drive motor. Detailed Implementation

[0034] 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.

[0035] Example: Figures 1-14 As shown, the present invention provides a multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding, including an equipment shell 1, a screw conveyor 4 and an upper mold 44. A controller 2 is fixedly connected to the outside of the equipment shell 1. A forming mold 7 is set inside the equipment shell 1. Multiple storage tanks 18 are opened on the top of the forming mold 7. A lower mold 19 is set at the bottom of the inner cavity of each storage tank 18. A support component is set at the bottom of each lower mold 19. Two pneumatic cylinders 15 are fixedly inserted through the bottom of the inner cavity of the equipment shell 1. A magnetic plate 16 is fixedly connected to the piston end of each of the two pneumatic cylinders 15. A material blocking component is set above one of the magnetic plates 16, and a material discharging component is set above the other magnetic plate 16. The material blocking component and the material discharging component are both set on the top of the forming mold 7.

[0036] Specifically, such as Figure 3 , Figure 4 and Figure 5The transmission shaft 11, which is fixedly connected to the bottom of the molding die 7, is rotatably inserted through the bottom of the inner cavity of the equipment housing 1. The transmission shaft 11 and the molding die 7 can rotate. The bottom of the equipment housing 1 is fixedly connected to a speed changer 12 and a drive motor 52. The output end of the drive motor 52 is fixedly connected to the input end of the speed changer 12, and the bottom end of the transmission shaft 11 is fixedly connected to the output end of the speed changer 12. Therefore, the drive motor 52 is controlled to output rotational force. The rotational force is applied to the molding die 7 under the action of the speed changer 12 and the transmission of the transmission shaft 11, and the molding die 7 rotates.

[0037] The bottom of the molding mold 7 is fixedly connected to multiple support frames 1 8 and multiple support frames 2 13. The multiple support frames 1 8 and multiple support frames 2 13 are all distributed in a ring around the axis of the molding mold 7. The rolling ball 1 9 of the support frame 1 8 is rolled against the support plate 10 fixedly connected inside the equipment shell 1. The rolling ball 2 14 of the support frame 2 13 is rolled against the bottom of the inner cavity of the equipment shell 1. With the cooperation of the multiple support frames 1 8, multiple rolling balls 1 9, multiple support frames 2 13 and multiple rolling balls 2 14, the molding mold 7 can rotate stably, and the downward force on the molding mold 7 is distributed to the support plate 10 and the bottom of the inner cavity of the equipment shell 1.

[0038] Specifically, such as Figure 1 and Figure 4 The screw conveyor 4 has a feed pipe 5 fixedly connected to its inlet. The feed pipe 5 is used to connect to the outlet of the metal powder storage bin. The bottom end of the discharge pipe 3 fixedly connected to the outlet of the screw conveyor 4 extends into the equipment shell 1. The outer wall of the discharge pipe 3 is fixedly connected to the equipment shell 1. A flared pipe 6 is fixedly connected to the bottom end of the discharge pipe 3. The flared pipe 6 abuts against the top of the forming mold 7. Multiple storage troughs 18 are arranged in a ring on the top of the forming mold 7. The flared pipe 6 is set on the movement path of the storage troughs 18. When the flared pipe 6 covers the top of one of the storage troughs 18, the screw conveyor 4 is controlled to work to transport metal powder into the storage trough 18 through the discharge pipe 3 and the flared pipe 6.

[0039] Specifically, such as Figure 2 , Figure 4 , Figure 10 and Figure 11In the material blocking assembly, the electric push rod 31 is fixedly connected inside the equipment housing 1. The piston end of the electric push rod 31 is fixedly connected to the motion frame 30 set on one side of the top of the forming mold 7. By controlling the operation of the electric push rod 31, the position of the motion frame 30 can be controlled, so that the waste trough 32 opened on the top of the motion frame 30 is staggered or aligned with the adjacent storage trough 18. The limiting plate 33 set on the top of the motion frame 30 is fixedly installed inside the equipment housing 1. The piston ends of the two telescopic rods 34 fixedly connected to the top of the limiting plate 33 are fixedly connected to the motion frame 30 with short plates. The limiting plate 35 set at the bottom of the motion frame 30 is fixedly connected to the equipment housing 1. Under the action of the limiting plate 33, the limiting plate 35 and the two telescopic rods 34, the movement path of the motion frame 30 is restricted, ensuring the stability of the cooperation between the waste trough 32 and the storage trough 18 opened on the forming mold 7.

[0040] The second limiting plate 35 abuts against the outer wall of the forming mold 7 on one side. The top of the second limiting plate 35 is provided with a discharge groove 36, which is located at the bottom of the movement path of the waste material trough 32. The waste material pipe 37 provided at the bottom of the discharge groove 36 is fixedly connected between the second limiting plate 35 and the equipment shell 1. The bottom end of the waste material pipe 37 extends to the outside of the equipment shell 1 and is fixedly connected to a horizontal pipe 38. The air outlet of the blower 39 provided on one side of the equipment shell 1 is fixedly connected to the horizontal pipe 38, and the blower 39 is controlled to work to deliver airflow into the horizontal pipe 38.

[0041] Specifically, such as Figure 4 , Figure 12 , Figure 13 and Figure 14 In the support assembly, the sliding frame 20 is fixedly installed at the bottom of the lower mold 19. The bottom of the iron pipe 21 fixedly connected to the bottom of the sliding frame 20 is provided with an iron plate 27. Multiple plastic rods 28 fixedly connected to the top of the iron plate 27 are connected to an electromagnet 29. The electromagnet 29 and the iron plate 27 play a role in increasing weight. The electromagnet 29 is located on the outside of the iron pipe 21 and contacts the outer wall of the iron pipe 21. When the electromagnet 29 works, it is fixed to the outside of the iron pipe 21 by magnetic attraction. At this time, the iron plate 27 and the sliding frame 20 move synchronously. The sliding frame 20 slides through the forming mold 7, and the sliding frame 20 and the forming mold 7 can move relative to each other in the vertical direction.

[0042] A circular plate 23 is fixedly connected to the top of the transmission column 22, which is fixedly connected to the top of the iron plate 27. The circular plate 23 is located inside the sliding frame 20. A water storage bladder 25 and multiple spring-type telescopic rods 24 are fixedly connected to the top of the circular plate 23. The top of the water storage bladder 25 and the piston end of the spring-type telescopic rods 24 are both fixedly connected to the top of the inner cavity of the sliding frame 20. The circular plate 23 can move up and down inside the sliding frame 20. A hydraulic sensor 26 is fixedly installed on the top of the circular plate 23 inside the water storage bladder 25. The hydraulic sensor 26 detects the hydraulic pressure inside the water storage bladder 25.

[0043] Specifically, such as Figure 3 , Figure 4 and Figure 9 Both sides of the pneumatic cylinder 15 are equipped with telescopic rods 17. The telescopic rods 17 are fixedly inserted into the bottom of the equipment housing 1. The piston ends of the telescopic rods 17 are fixedly connected to the magnet plate 16. The pneumatic cylinder 15 and the telescopic rods 17 work together to control the magnet plate 16 to move up and down stably.

[0044] A polygonal column 43 is fixedly connected to the top of the upper mold 44. The polygonal column 43 is slidably installed on the top of the equipment shell 1 and moves up and down. A hydraulic cylinder 40 and a telescopic rod 41 are respectively provided on both sides of the bottom of the transmission top plate 42 fixedly connected to the top of the polygonal column 43. The bottom ends of the hydraulic cylinder 40 and the telescopic rod 41 extend into the equipment shell 1. The outer walls of the hydraulic cylinder 40 and the telescopic rod 41 are fixedly connected to the equipment shell 1 and cannot move. The piston ends of the hydraulic cylinder 40 and the telescopic rod 41 are fixedly connected to the transmission top plate 42. With the cooperation of the hydraulic cylinder 40 and the telescopic rod 41, the transmission top plate 42 moves up and down, and the polygonal column 43 and the upper mold 44 move up and down.

[0045] Specifically, such as Figure 4 , Figure 6 , Figure 7 and Figure 8 In the material discharge assembly, the finished product pipe 45 is set on the top of the forming mold 7. One end of the finished product pipe 45 extends to the outside of the equipment shell 1 and the outer wall of the finished product pipe 45 is fixedly connected to the equipment shell 1. A circular material trough 46 is opened at the bottom of the finished product pipe 45. The inner diameter of the circular material trough 46 is slightly larger than the inner diameter of the storage trough 18. A square push plate 47 is set inside the finished product pipe 45. Two sliding grooves 51 opened at the top of the finished product pipe 45 are each equipped with a trapezoidal plate 48. The two trapezoidal plates 48 are fixedly connected to the square push plate 47. The two trapezoidal plates 48 limit the movement of the square push plate 47. A connecting bend plate 49 is fixedly connected between the two trapezoidal plates 48. The piston end of the pneumatic cylinder 2 50 fixedly connected to the top of the finished product pipe 45 is fixedly connected to the connecting bend plate 49. By controlling the pneumatic cylinder 2 50, the position of the square push plate 47 inside the finished product pipe 45 can be controlled.

[0046] In summary, a molding device is composed of the following components: equipment casing 1, screw conveyor 4, upper mold 44, controller 2, forming mold 7, multiple storage tanks 18, multiple lower molds 19, multiple support components, two pneumatic cylinders 15, two magnetic plates 16, material blocking components, and material discharge components.

[0047] The working principle of the molding equipment is as follows:

[0048] First, the screw conveyor 4 stops working after a period of time. The screw conveyor 4 then conveys metal powder into the storage tank 18 at the bottom of the flared pipe 6. After the screw conveyor 4 stops working, the controller 2 controls the drive motor 52 to work for a period of time and then pauses. Under the action of the speed reducer 12 and the transmission shaft 11, the forming mold 7 rotates, causing the storage tank 18 containing metal powder at the bottom of the flared pipe 6 to rotate and move towards the motion frame 30. The empty storage tank 18 moves towards the bottom of the flared pipe 6. When the drive motor 52 stops working, the storage tank 18 containing metal powder stops at the bottom of the motion frame 30, and the empty storage tank 18 stops at the bottom of the flared pipe 6, completing one automatic feeding operation. In summary, the screw conveyor 4 and the drive motor 52 work together under the control of the controller 2. After the empty storage tank 18 moves to the bottom of the flared pipe 6, the screw conveyor 4 works to convey metal powder into the storage tank 18, realizing the automatic feeding function.

[0049] When the storage tank 18 containing metal powder moves to the bottom of the motion frame 30, the iron plate 27 in the baffle assembly at the bottom of the lower mold 19 located at the bottom of the inner cavity of the storage tank 18 remains on top of the left magnet plate 16 (the left and right are described in this application as...). Figure 4 (As shown for reference), during the pause of the drive motor 52, the pneumatic cylinder 15 installed at the bottom of the left magnetic plate 16 operates, causing the magnetic plate 16 to move upward and push the iron plate 27 upward. The transmission column 22, which is fixedly connected to the iron plate 27, moves upward, and the circular plate 23, which is fixedly connected to the transmission column 22, moves upward. Under the action of multiple spring-type telescopic rods 24, the sliding frame 20 and the lower mold 19 move upward. The upward movement of the lower mold 19 pushes the metal powder inside the storage tank 18 upward. At this time, the moving frame 30 seals the top of the storage tank 18. As the lower mold 19 moves upward, the lower mold 19 and the moving frame 30 work together to compact the metal powder, achieving the effect of smoothing the top of the metal powder. As the density of the metal powder increases, the reaction force on the spring-type telescopic rods 24 increases, causing the spring-type telescopic rods 24 to contract. The hydraulic pressure inside the water storage bladder 25 increases, and the hydraulic sensor 26 detects the water storage bladder in real time. 25 Internal hydraulic pressure: When the hydraulic pressure value detected by the water storage bladder 25 reaches the preset value, the controller 2, which receives feedback from the hydraulic sensor 26, controls the pneumatic cylinder 15 to work and drive the magnetic plate 16 to move down. The magnetic plate 16 and the iron plate 27 are fixed together by magnetic attraction, so the iron plate 27 and the magnetic plate 16 move down synchronously. The lower mold 19 moves down. After the lower mold 19, the sliding frame 20, and the spring-type telescopic rod 24 return to their initial state, the electromagnet 29 is controlled to work. The electromagnet 29 is fixed to the outside of the iron pipe 21 by magnetic attraction. At this time, the iron plate 27 is integrated with the electromagnet 29, the iron pipe 21, and the sliding frame 20. The iron plate 27 and the lower mold 19 move up and down synchronously. At the same time, the electric push rod 31 is controlled to work and drive the moving frame 30 to move, so that the waste trough 32 moves and aligns with the bottom storage trough 18. The inner diameter of the waste trough 32 is slightly larger than the inner diameter of the storage trough 18.

[0050] Subsequently, the left-side pneumatic cylinder 15 is activated again, and the magnetic plate 16 pushes the iron plate 27 and the lower mold 19 upward. After the lower mold 19 moves upward a preset distance, the pneumatic cylinder 15 stops working. At this time, the excess metal powder enters the waste trough 32. The electric push rod 31 is activated to drive the motion frame 30 to move. The waste trough 32 moves towards the limit plate 35. The motion frame 30 separates the excess metal powder from the metal powder remaining in the storage trough 18, completing the quantitative retention of the compacted metal powder. During the movement of the motion frame 30, the excess metal powder in the waste trough 32 falls into the waste pipe 37 through the discharge chute 36. The excess metal powder finally enters the waste pipe 37. The metal powder is stored inside the horizontal tube 38. After compaction, excess metal powder is separated and collected, which quickly and efficiently recovers the excess metal powder and avoids waste. The horizontal movement of the motion frame 30 smooths the top of the metal powder remaining inside the storage tank 18. The upper mold 44, lower mold 19, and storage tank 18 are designed according to the shape of the metal part, directly compacting and shaping the metal powder into the preset shape. The required amount of metal powder can be accurately retained inside the storage tank 18. At the same time, the metal part can be formed by one feeding and pressing, changing the traditional process of multiple feeding and pressing to form metal parts, avoiding the delamination of metal parts, and ensuring the quality of the pressed metal parts.

[0051] Subsequently, the left pneumatic cylinder 15 operates, causing the magnetic plate 16 to move down and reset. After the magnetic plate 16 returns to its initial position, the movement of the forming mold 7 is no longer obstructed by the magnetic plate 16. The magnetic connection between the magnetic plate 16 and the iron plate 27 disengages as the iron plate 27 moves. The amount of metal powder inside is moved to the bottom of the upper mold 44 by the storage tank 18, which is metered and adjusted by the baffle assembly. During the time when the drive motor 52 is paused, the hydraulic cylinder 40 is controlled to move the upper mold 44 down, applying a preset pressure to the metal powder inside the storage tank 18 for a period of time. After that, the hydraulic cylinder 40 operates to make the upper mold 44 leave the storage tank 18. The metal powder is pressed into a metal part. Since the metal powder in the storage tank 18 has been compacted once by the baffle assembly and the support assembly, air is released during the compaction process, reducing air bubbles in the metal part pressed by the upper mold 44, the forming mold 7, and the lower mold 19. The baffle assembly and the support assembly work together to reduce air bubbles in the metal part, ensuring the quality of the metal part pressed from the metal powder.

[0052] Subsequently, the storage tank 18 containing the internal metal parts moves to the bottom of the circular material trough 46 opened in the finished product pipe 45. The storage tank 18 is located at the discharge position. Since the bottom surface of the upper mold 44 is slightly higher than the top surface of the forming mold 7, the metal parts inside the storage tank 18 move smoothly to the bottom of the circular material trough 46. During the time when the drive motor 52 is paused, the pneumatic cylinder 15 located at the bottom of the circular material trough 46 on the right side is controlled to work. The electromagnet 29 in the support assembly installed at the bottom of the lower mold 19 inside the storage tank 18 at the discharge position works. The operation of the pneumatic cylinder 15 causes the lower mold 19 to move upward. The lower mold 19 pushes the metal parts upward through the circular material trough 46 into the interior of the finished product pipe 45. Then, the pneumatic cylinder 20 works. The pneumatic cylinder 20 pushes the connecting bent plate 49 and the two trapezoidal plates 48 to drive the square push plate 47 to move inside the finished product pipe 45. The square push plate 47 pushes the metal parts out of the interior of the finished product pipe 45. The support assembly and the discharge assembly work together to quickly complete the demolding and collection of the metal parts.

[0053] After the internal metal parts are demolded, the storage tank 18 moves to the bottom of the flared tube 6, and the storage tank 18 repeats the above working steps. The multiple storage tanks 18 opened on the top of the forming mold 7 are distributed in a ring around the axis of the forming mold 7. The circular material tank 46, the upper mold 44, the moving frame 30 and the flared tube 6 are also distributed in a ring around the axis of the forming mold 7. With multiple support components and two pneumatic cylinders 15, multi-station automatic continuous powder feeding, metal powder quantity adjustment, metal part pressing and metal part demolding can be realized, ensuring the speed of metal powder pressing and forming. Moreover, by controlling the blower 39 to work, the excess metal powder that is directly collected and stored inside the horizontal tube 38 without contamination can be transported and recycled, ensuring the rapid and pollution-free recycling of excess metal powder.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding, comprising an equipment shell (1), a screw conveyor (4) and an upper mold (44), wherein a controller (2) is fixedly connected to the outside of the equipment shell (1), characterized in that: The equipment housing (1) is provided with a molding mold (7) inside. The molding mold (7) has multiple storage slots (18) on the top. Each storage slot (18) has a lower mold (19) at the bottom of its inner cavity. Each lower mold (19) has a support component at its bottom. Two pneumatic cylinders (15) are fixedly inserted through the bottom of the inner cavity of the equipment housing (1). The piston ends of the two pneumatic cylinders (15) are fixedly connected to a magnet plate (16). A material blocking component is provided above one of the magnet plates (16), and a material discharge component is provided above the other magnet plate (16). The material blocking component and the material discharge component are both located on the top of the molding mold (7). The bottom end of the forming mold (7) is fixedly connected to a drive shaft (11), which rotates through the bottom of the inner cavity of the equipment shell (1). The bottom of the equipment shell (1) is fixedly connected to a speed changer (12) and a drive motor (52). The output end of the drive motor (52) is fixedly connected to the input end of the speed changer (12), and the bottom end of the drive shaft (11) is fixedly connected to the output end of the speed changer (12). The material blocking assembly includes an electric push rod (31) fixedly connected inside the equipment housing (1), a motion frame (30) set on one side of the top of the forming mold (7), a first limiting plate (33) set on the top of the motion frame (30), and a second limiting plate (35) set on the bottom of the motion frame (30). The piston end of the electric push rod (31) is fixedly connected to the motion frame (30). The first limiting plate (33) is fixedly installed inside the equipment housing (1). The top of the first limiting plate (33) is fixedly connected to two telescopic rods (34). The piston ends of the two telescopic rods (34) are fixedly connected to the motion frame (30) with short plates. The top of the motion frame (30) is provided with a waste trough (32). The support assembly includes a sliding frame (20) fixedly connected to the bottom end of the lower mold (19), an iron pipe (21) fixedly connected to the bottom end of the sliding frame (20), and an iron plate (27) provided at the bottom of the iron pipe (21). A plurality of plastic rods (28) are fixedly connected to the top of the iron plate (27), and an electromagnet (29) is fixedly connected between the plurality of plastic rods (28). The electromagnet (29) is provided on the outside of the iron pipe (21) and contacts the outer wall of the iron pipe (21). The sliding frame (20) slides through the forming mold (7). A transmission column (22) is fixedly connected to the top of the iron plate (27). A circular plate (23) is fixedly connected to the top of the transmission column (22). A water storage bladder (25) and multiple spring-type telescopic rods (24) are fixedly connected to the top of the circular plate (23). The top of the water storage bladder (25) and the piston end of the spring-type telescopic rods (24) are both fixedly connected to the top of the inner cavity of the sliding frame (20). A hydraulic sensor (26) is installed inside the water storage bladder (25). The hydraulic sensor (26) is fixedly installed on the top of the circular plate (23). The discharge assembly includes a finished product pipe (45) set on the top of the forming mold (7). One end of the finished product pipe (45) extends to the outside of the equipment shell (1). The outer wall of the finished product pipe (45) is fixedly connected to the equipment shell (1). A circular material groove (46) is opened at the bottom of the finished product pipe (45). A square push plate (47) is set inside the finished product pipe (45). Two sliding grooves (51) are opened on the top of the finished product pipe (45). A trapezoidal plate (48) is set inside each of the two sliding grooves (51). Both trapezoidal plates (48) are fixedly connected to the square push plate (47). A connecting bend plate (49) is fixedly connected between the two trapezoidal plates (48). A second pneumatic cylinder (50) is fixedly connected to the top of the finished product pipe (45). The piston end of the second pneumatic cylinder (50) is fixedly connected to the connecting bend plate (49).

2. The multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding as described in claim 1, characterized in that: The bottom of the molding die (7) is fixedly connected to multiple support frames one (8) and multiple support frames two (13). The bottom of the support frame one (8) is provided with a rolling ball one (9). The inside of the equipment shell (1) is fixedly connected to a support plate (10). The bottom of the rolling ball one (9) abuts against the top of the support plate (10). The bottom of the support frame two (13) is provided with a rolling ball two (14). The rolling ball two (14) abuts against the bottom of the inner cavity of the equipment shell (1).

3. The multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding as described in claim 1, characterized in that: The screw conveyor (4) has a feed pipe (5) fixedly connected to its feed inlet and a discharge pipe (3) fixedly connected to its discharge outlet. The bottom end of the discharge pipe (3) extends into the equipment housing (1). The outer wall of the discharge pipe (3) is fixedly connected to the equipment housing (1). The bottom end of the discharge pipe (3) is fixedly connected to a flared pipe (6), which abuts against the top of the forming mold (7).

4. The multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding as described in claim 1, characterized in that: The second limiting plate (35) is fixedly connected to the inside of the equipment shell (1). One side of the second limiting plate (35) abuts against the outer wall of the forming mold (7). The top of the second limiting plate (35) is provided with a discharge groove (36). The bottom of the discharge groove (36) is provided with a waste pipe (37). The waste pipe (37) is fixedly connected between the second limiting plate (35) and the equipment shell (1). The bottom end of the waste pipe (37) extends to the outside of the equipment shell (1). The bottom end of the waste pipe (37) is fixedly connected with a horizontal pipe (38). A blower (39) is provided on one side of the equipment shell (1). The air outlet of the blower (39) is fixedly connected to the horizontal pipe (38).

5. The multi-station continuous pressing metal powder metallurgy forming equipment with automatic powder feeding as described in claim 1, characterized in that: Both sides of the pneumatic cylinder (15) are provided with telescopic rods (17). The telescopic rods (17) are fixedly inserted into the bottom of the equipment shell (1). The piston end of the telescopic rods (17) is fixedly connected to the magnet plate (16). The top of the upper mold (44) is fixedly connected to a polygonal column (43). The polygonal column (43) is slidably installed on the top of the equipment shell (1). The top of the polygonal column (43) is fixedly connected to a transmission top plate (42). The bottom sides of the transmission top plate (42) are respectively provided with a hydraulic cylinder (40) and a telescopic rod (3) (41). The bottom ends of the hydraulic cylinder (40) and the telescopic rod (3) (41) extend into the equipment shell (1). The outer walls of the hydraulic cylinder (40) and the telescopic rod (3) (41) are fixedly connected to the equipment shell (1). The piston ends of the hydraulic cylinder (40) and the telescopic rod (3) (41) are fixedly connected to the transmission top plate (42).

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